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 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009, |
7b6bb8da | 5 | 2010, 2011 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, |
774b6a14 | 94 | int *is_a_field_of_this); |
fba7f19c | 95 | |
e4051eeb DC |
96 | static |
97 | struct symbol *lookup_symbol_aux_local (const char *name, | |
e4051eeb | 98 | const struct block *block, |
13387711 SW |
99 | const domain_enum domain, |
100 | enum language language); | |
8155455b DC |
101 | |
102 | static | |
103 | struct symbol *lookup_symbol_aux_symtabs (int block_index, | |
104 | const char *name, | |
21b556f4 | 105 | const domain_enum domain); |
8155455b DC |
106 | |
107 | static | |
ccefe4c4 TT |
108 | struct symbol *lookup_symbol_aux_quick (struct objfile *objfile, |
109 | int block_index, | |
110 | const char *name, | |
111 | const domain_enum domain); | |
c906108c | 112 | |
a14ed312 | 113 | static void print_msymbol_info (struct minimal_symbol *); |
c906108c | 114 | |
a14ed312 | 115 | void _initialize_symtab (void); |
c906108c SS |
116 | |
117 | /* */ | |
118 | ||
717d2f5a JB |
119 | /* Allow the user to configure the debugger behavior with respect |
120 | to multiple-choice menus when more than one symbol matches during | |
121 | a symbol lookup. */ | |
122 | ||
7fc830e2 MK |
123 | const char multiple_symbols_ask[] = "ask"; |
124 | const char multiple_symbols_all[] = "all"; | |
125 | const char multiple_symbols_cancel[] = "cancel"; | |
717d2f5a JB |
126 | static const char *multiple_symbols_modes[] = |
127 | { | |
128 | multiple_symbols_ask, | |
129 | multiple_symbols_all, | |
130 | multiple_symbols_cancel, | |
131 | NULL | |
132 | }; | |
133 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
134 | ||
135 | /* Read-only accessor to AUTO_SELECT_MODE. */ | |
136 | ||
137 | const char * | |
138 | multiple_symbols_select_mode (void) | |
139 | { | |
140 | return multiple_symbols_mode; | |
141 | } | |
142 | ||
c906108c | 143 | /* Block in which the most recently searched-for symbol was found. |
9af17804 | 144 | Might be better to make this a parameter to lookup_symbol and |
c378eb4e | 145 | value_of_this. */ |
c906108c SS |
146 | |
147 | const struct block *block_found; | |
148 | ||
c906108c SS |
149 | /* Check for a symtab of a specific name; first in symtabs, then in |
150 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
151 | in the symtab filename will also work. */ | |
152 | ||
1b15f1fa TT |
153 | struct symtab * |
154 | lookup_symtab (const char *name) | |
c906108c | 155 | { |
ccefe4c4 TT |
156 | int found; |
157 | struct symtab *s = NULL; | |
52f0bd74 | 158 | struct objfile *objfile; |
58d370e0 | 159 | char *real_path = NULL; |
f079a2e5 | 160 | char *full_path = NULL; |
58d370e0 TT |
161 | |
162 | /* Here we are interested in canonicalizing an absolute path, not | |
163 | absolutizing a relative path. */ | |
164 | if (IS_ABSOLUTE_PATH (name)) | |
f079a2e5 JB |
165 | { |
166 | full_path = xfullpath (name); | |
167 | make_cleanup (xfree, full_path); | |
168 | real_path = gdb_realpath (name); | |
169 | make_cleanup (xfree, real_path); | |
170 | } | |
c906108c | 171 | |
c5aa993b | 172 | got_symtab: |
c906108c | 173 | |
c378eb4e | 174 | /* First, search for an exact match. */ |
c906108c SS |
175 | |
176 | ALL_SYMTABS (objfile, s) | |
58d370e0 | 177 | { |
a7fdf62f | 178 | if (FILENAME_CMP (name, s->filename) == 0) |
58d370e0 | 179 | { |
58d370e0 TT |
180 | return s; |
181 | } | |
9af17804 | 182 | |
58d370e0 TT |
183 | /* If the user gave us an absolute path, try to find the file in |
184 | this symtab and use its absolute path. */ | |
9af17804 | 185 | |
f079a2e5 JB |
186 | if (full_path != NULL) |
187 | { | |
09bcec80 | 188 | const char *fp = symtab_to_fullname (s); |
433759f7 | 189 | |
09bcec80 BR |
190 | if (fp != NULL && FILENAME_CMP (full_path, fp) == 0) |
191 | { | |
192 | return s; | |
193 | } | |
f079a2e5 JB |
194 | } |
195 | ||
58d370e0 TT |
196 | if (real_path != NULL) |
197 | { | |
09bcec80 | 198 | char *fullname = symtab_to_fullname (s); |
433759f7 | 199 | |
09bcec80 BR |
200 | if (fullname != NULL) |
201 | { | |
202 | char *rp = gdb_realpath (fullname); | |
433759f7 | 203 | |
09bcec80 BR |
204 | make_cleanup (xfree, rp); |
205 | if (FILENAME_CMP (real_path, rp) == 0) | |
206 | { | |
207 | return s; | |
208 | } | |
209 | } | |
58d370e0 TT |
210 | } |
211 | } | |
212 | ||
c378eb4e | 213 | /* Now, search for a matching tail (only if name doesn't have any dirs). */ |
c906108c | 214 | |
caadab2c | 215 | if (lbasename (name) == name) |
c906108c | 216 | ALL_SYMTABS (objfile, s) |
c5aa993b | 217 | { |
31889e00 | 218 | if (FILENAME_CMP (lbasename (s->filename), name) == 0) |
c5aa993b JM |
219 | return s; |
220 | } | |
c906108c SS |
221 | |
222 | /* Same search rules as above apply here, but now we look thru the | |
223 | psymtabs. */ | |
224 | ||
ccefe4c4 TT |
225 | found = 0; |
226 | ALL_OBJFILES (objfile) | |
227 | { | |
228 | if (objfile->sf | |
229 | && objfile->sf->qf->lookup_symtab (objfile, name, full_path, real_path, | |
230 | &s)) | |
231 | { | |
232 | found = 1; | |
233 | break; | |
234 | } | |
235 | } | |
c906108c | 236 | |
ccefe4c4 | 237 | if (s != NULL) |
c906108c | 238 | return s; |
ccefe4c4 TT |
239 | if (!found) |
240 | return NULL; | |
c906108c SS |
241 | |
242 | /* At this point, we have located the psymtab for this file, but | |
243 | the conversion to a symtab has failed. This usually happens | |
244 | when we are looking up an include file. In this case, | |
245 | PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has | |
246 | been created. So, we need to run through the symtabs again in | |
247 | order to find the file. | |
7a9dd1b2 | 248 | XXX - This is a crock, and should be fixed inside of the |
c378eb4e | 249 | symbol parsing routines. */ |
c906108c SS |
250 | goto got_symtab; |
251 | } | |
c906108c SS |
252 | \f |
253 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
254 | full method name, which consist of the class name (from T), the unadorned | |
255 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 256 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
257 | |
258 | char * | |
fba45db2 | 259 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
260 | { |
261 | int mangled_name_len; | |
262 | char *mangled_name; | |
263 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
264 | struct fn_field *method = &f[signature_id]; | |
265 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); | |
266 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); | |
267 | char *newname = type_name_no_tag (type); | |
268 | ||
269 | /* Does the form of physname indicate that it is the full mangled name | |
270 | of a constructor (not just the args)? */ | |
271 | int is_full_physname_constructor; | |
272 | ||
273 | int is_constructor; | |
015a42b4 | 274 | int is_destructor = is_destructor_name (physname); |
c906108c SS |
275 | /* Need a new type prefix. */ |
276 | char *const_prefix = method->is_const ? "C" : ""; | |
277 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
278 | char buf[20]; | |
279 | int len = (newname == NULL ? 0 : strlen (newname)); | |
280 | ||
43630227 PS |
281 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
282 | or an operator name. */ | |
283 | if ((physname[0] == '_' && physname[1] == 'Z') | |
284 | || is_operator_name (field_name)) | |
235d1e03 EZ |
285 | return xstrdup (physname); |
286 | ||
015a42b4 | 287 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 288 | |
3e43a32a MS |
289 | is_constructor = is_full_physname_constructor |
290 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
291 | |
292 | if (!is_destructor) | |
c5aa993b | 293 | is_destructor = (strncmp (physname, "__dt", 4) == 0); |
c906108c SS |
294 | |
295 | if (is_destructor || is_full_physname_constructor) | |
296 | { | |
c5aa993b JM |
297 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
298 | strcpy (mangled_name, physname); | |
c906108c SS |
299 | return mangled_name; |
300 | } | |
301 | ||
302 | if (len == 0) | |
303 | { | |
304 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
305 | } | |
306 | else if (physname[0] == 't' || physname[0] == 'Q') | |
307 | { | |
308 | /* The physname for template and qualified methods already includes | |
c5aa993b | 309 | the class name. */ |
c906108c SS |
310 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
311 | newname = NULL; | |
312 | len = 0; | |
313 | } | |
314 | else | |
315 | { | |
316 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
317 | } | |
318 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 319 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 320 | |
433759f7 MS |
321 | mangled_name = (char *) xmalloc (mangled_name_len); |
322 | if (is_constructor) | |
323 | mangled_name[0] = '\0'; | |
324 | else | |
325 | strcpy (mangled_name, field_name); | |
326 | ||
c906108c SS |
327 | strcat (mangled_name, buf); |
328 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
329 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 330 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
331 | if (newname != NULL) |
332 | strcat (mangled_name, newname); | |
333 | ||
334 | strcat (mangled_name, physname); | |
335 | return (mangled_name); | |
336 | } | |
12af6855 | 337 | |
29df156d SW |
338 | /* Initialize the cplus_specific structure. 'cplus_specific' should |
339 | only be allocated for use with cplus symbols. */ | |
340 | ||
341 | static void | |
342 | symbol_init_cplus_specific (struct general_symbol_info *gsymbol, | |
343 | struct objfile *objfile) | |
344 | { | |
345 | /* A language_specific structure should not have been previously | |
346 | initialized. */ | |
347 | gdb_assert (gsymbol->language_specific.cplus_specific == NULL); | |
348 | gdb_assert (objfile != NULL); | |
349 | ||
350 | gsymbol->language_specific.cplus_specific = | |
351 | OBSTACK_ZALLOC (&objfile->objfile_obstack, struct cplus_specific); | |
352 | } | |
353 | ||
b250c185 | 354 | /* Set the demangled name of GSYMBOL to NAME. NAME must be already |
29df156d | 355 | correctly allocated. For C++ symbols a cplus_specific struct is |
c378eb4e | 356 | allocated so OBJFILE must not be NULL. If this is a non C++ symbol |
29df156d | 357 | OBJFILE can be NULL. */ |
b250c185 SW |
358 | void |
359 | symbol_set_demangled_name (struct general_symbol_info *gsymbol, | |
29df156d SW |
360 | char *name, |
361 | struct objfile *objfile) | |
b250c185 | 362 | { |
29df156d SW |
363 | if (gsymbol->language == language_cplus) |
364 | { | |
365 | if (gsymbol->language_specific.cplus_specific == NULL) | |
366 | symbol_init_cplus_specific (gsymbol, objfile); | |
367 | ||
368 | gsymbol->language_specific.cplus_specific->demangled_name = name; | |
369 | } | |
370 | else | |
371 | gsymbol->language_specific.mangled_lang.demangled_name = name; | |
b250c185 SW |
372 | } |
373 | ||
374 | /* Return the demangled name of GSYMBOL. */ | |
375 | char * | |
376 | symbol_get_demangled_name (const struct general_symbol_info *gsymbol) | |
377 | { | |
29df156d SW |
378 | if (gsymbol->language == language_cplus) |
379 | { | |
45c58896 SW |
380 | if (gsymbol->language_specific.cplus_specific != NULL) |
381 | return gsymbol->language_specific.cplus_specific->demangled_name; | |
382 | else | |
383 | return NULL; | |
29df156d SW |
384 | } |
385 | else | |
386 | return gsymbol->language_specific.mangled_lang.demangled_name; | |
b250c185 SW |
387 | } |
388 | ||
12af6855 | 389 | \f |
89aad1f9 | 390 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 391 | depending upon the language for the symbol. */ |
89aad1f9 | 392 | void |
33e5013e SW |
393 | symbol_set_language (struct general_symbol_info *gsymbol, |
394 | enum language language) | |
89aad1f9 EZ |
395 | { |
396 | gsymbol->language = language; | |
33e5013e | 397 | if (gsymbol->language == language_d |
5784d15e | 398 | || gsymbol->language == language_java |
f55ee35c JK |
399 | || gsymbol->language == language_objc |
400 | || gsymbol->language == language_fortran) | |
89aad1f9 | 401 | { |
29df156d | 402 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
89aad1f9 | 403 | } |
29df156d SW |
404 | else if (gsymbol->language == language_cplus) |
405 | gsymbol->language_specific.cplus_specific = NULL; | |
89aad1f9 EZ |
406 | else |
407 | { | |
408 | memset (&gsymbol->language_specific, 0, | |
409 | sizeof (gsymbol->language_specific)); | |
410 | } | |
411 | } | |
412 | ||
2de7ced7 DJ |
413 | /* Functions to initialize a symbol's mangled name. */ |
414 | ||
04a679b8 TT |
415 | /* Objects of this type are stored in the demangled name hash table. */ |
416 | struct demangled_name_entry | |
417 | { | |
418 | char *mangled; | |
419 | char demangled[1]; | |
420 | }; | |
421 | ||
422 | /* Hash function for the demangled name hash. */ | |
423 | static hashval_t | |
424 | hash_demangled_name_entry (const void *data) | |
425 | { | |
426 | const struct demangled_name_entry *e = data; | |
433759f7 | 427 | |
04a679b8 TT |
428 | return htab_hash_string (e->mangled); |
429 | } | |
430 | ||
431 | /* Equality function for the demangled name hash. */ | |
432 | static int | |
433 | eq_demangled_name_entry (const void *a, const void *b) | |
434 | { | |
435 | const struct demangled_name_entry *da = a; | |
436 | const struct demangled_name_entry *db = b; | |
433759f7 | 437 | |
04a679b8 TT |
438 | return strcmp (da->mangled, db->mangled) == 0; |
439 | } | |
440 | ||
2de7ced7 DJ |
441 | /* Create the hash table used for demangled names. Each hash entry is |
442 | a pair of strings; one for the mangled name and one for the demangled | |
443 | name. The entry is hashed via just the mangled name. */ | |
444 | ||
445 | static void | |
446 | create_demangled_names_hash (struct objfile *objfile) | |
447 | { | |
448 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 449 | The hash table code will round this up to the next prime number. |
2de7ced7 DJ |
450 | Choosing a much larger table size wastes memory, and saves only about |
451 | 1% in symbol reading. */ | |
452 | ||
aa2ee5f6 | 453 | objfile->demangled_names_hash = htab_create_alloc |
04a679b8 | 454 | (256, hash_demangled_name_entry, eq_demangled_name_entry, |
aa2ee5f6 | 455 | NULL, xcalloc, xfree); |
2de7ced7 | 456 | } |
12af6855 | 457 | |
2de7ced7 | 458 | /* Try to determine the demangled name for a symbol, based on the |
12af6855 JB |
459 | language of that symbol. If the language is set to language_auto, |
460 | it will attempt to find any demangling algorithm that works and | |
2de7ced7 DJ |
461 | then set the language appropriately. The returned name is allocated |
462 | by the demangler and should be xfree'd. */ | |
12af6855 | 463 | |
2de7ced7 DJ |
464 | static char * |
465 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, | |
466 | const char *mangled) | |
12af6855 | 467 | { |
12af6855 JB |
468 | char *demangled = NULL; |
469 | ||
470 | if (gsymbol->language == language_unknown) | |
471 | gsymbol->language = language_auto; | |
1bae87b9 AF |
472 | |
473 | if (gsymbol->language == language_objc | |
474 | || gsymbol->language == language_auto) | |
475 | { | |
476 | demangled = | |
477 | objc_demangle (mangled, 0); | |
478 | if (demangled != NULL) | |
479 | { | |
480 | gsymbol->language = language_objc; | |
481 | return demangled; | |
482 | } | |
483 | } | |
12af6855 JB |
484 | if (gsymbol->language == language_cplus |
485 | || gsymbol->language == language_auto) | |
486 | { | |
487 | demangled = | |
94af9270 | 488 | cplus_demangle (mangled, DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE); |
12af6855 | 489 | if (demangled != NULL) |
2de7ced7 DJ |
490 | { |
491 | gsymbol->language = language_cplus; | |
492 | return demangled; | |
493 | } | |
12af6855 JB |
494 | } |
495 | if (gsymbol->language == language_java) | |
496 | { | |
497 | demangled = | |
2de7ced7 | 498 | cplus_demangle (mangled, |
12af6855 JB |
499 | DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); |
500 | if (demangled != NULL) | |
2de7ced7 DJ |
501 | { |
502 | gsymbol->language = language_java; | |
503 | return demangled; | |
504 | } | |
505 | } | |
6aecb9c2 JB |
506 | if (gsymbol->language == language_d |
507 | || gsymbol->language == language_auto) | |
508 | { | |
509 | demangled = d_demangle(mangled, 0); | |
510 | if (demangled != NULL) | |
511 | { | |
512 | gsymbol->language = language_d; | |
513 | return demangled; | |
514 | } | |
515 | } | |
f55ee35c JK |
516 | /* We could support `gsymbol->language == language_fortran' here to provide |
517 | module namespaces also for inferiors with only minimal symbol table (ELF | |
518 | symbols). Just the mangling standard is not standardized across compilers | |
519 | and there is no DW_AT_producer available for inferiors with only the ELF | |
520 | symbols to check the mangling kind. */ | |
2de7ced7 DJ |
521 | return NULL; |
522 | } | |
523 | ||
980cae7a | 524 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
525 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
526 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
527 | NUL-terminated, then this function assumes that NAME is already | |
528 | correctly saved (either permanently or with a lifetime tied to the | |
529 | objfile), and it will not be copied. | |
530 | ||
531 | The hash table corresponding to OBJFILE is used, and the memory | |
532 | comes from that objfile's objfile_obstack. LINKAGE_NAME is copied, | |
533 | so the pointer can be discarded after calling this function. */ | |
2de7ced7 | 534 | |
d2a52b27 DC |
535 | /* We have to be careful when dealing with Java names: when we run |
536 | into a Java minimal symbol, we don't know it's a Java symbol, so it | |
537 | gets demangled as a C++ name. This is unfortunate, but there's not | |
538 | much we can do about it: but when demangling partial symbols and | |
539 | regular symbols, we'd better not reuse the wrong demangled name. | |
540 | (See PR gdb/1039.) We solve this by putting a distinctive prefix | |
541 | on Java names when storing them in the hash table. */ | |
542 | ||
543 | /* FIXME: carlton/2003-03-13: This is an unfortunate situation. I | |
544 | don't mind the Java prefix so much: different languages have | |
545 | different demangling requirements, so it's only natural that we | |
546 | need to keep language data around in our demangling cache. But | |
547 | it's not good that the minimal symbol has the wrong demangled name. | |
548 | Unfortunately, I can't think of any easy solution to that | |
549 | problem. */ | |
550 | ||
551 | #define JAVA_PREFIX "##JAVA$$" | |
552 | #define JAVA_PREFIX_LEN 8 | |
553 | ||
2de7ced7 DJ |
554 | void |
555 | symbol_set_names (struct general_symbol_info *gsymbol, | |
04a679b8 TT |
556 | const char *linkage_name, int len, int copy_name, |
557 | struct objfile *objfile) | |
2de7ced7 | 558 | { |
04a679b8 | 559 | struct demangled_name_entry **slot; |
980cae7a DC |
560 | /* A 0-terminated copy of the linkage name. */ |
561 | const char *linkage_name_copy; | |
d2a52b27 DC |
562 | /* A copy of the linkage name that might have a special Java prefix |
563 | added to it, for use when looking names up in the hash table. */ | |
564 | const char *lookup_name; | |
565 | /* The length of lookup_name. */ | |
566 | int lookup_len; | |
04a679b8 | 567 | struct demangled_name_entry entry; |
2de7ced7 | 568 | |
b06ead72 JB |
569 | if (gsymbol->language == language_ada) |
570 | { | |
571 | /* In Ada, we do the symbol lookups using the mangled name, so | |
572 | we can save some space by not storing the demangled name. | |
573 | ||
574 | As a side note, we have also observed some overlap between | |
575 | the C++ mangling and Ada mangling, similarly to what has | |
576 | been observed with Java. Because we don't store the demangled | |
577 | name with the symbol, we don't need to use the same trick | |
578 | as Java. */ | |
04a679b8 TT |
579 | if (!copy_name) |
580 | gsymbol->name = (char *) linkage_name; | |
581 | else | |
582 | { | |
583 | gsymbol->name = obstack_alloc (&objfile->objfile_obstack, len + 1); | |
584 | memcpy (gsymbol->name, linkage_name, len); | |
585 | gsymbol->name[len] = '\0'; | |
586 | } | |
29df156d | 587 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
b06ead72 JB |
588 | |
589 | return; | |
590 | } | |
591 | ||
04a679b8 TT |
592 | if (objfile->demangled_names_hash == NULL) |
593 | create_demangled_names_hash (objfile); | |
594 | ||
980cae7a DC |
595 | /* The stabs reader generally provides names that are not |
596 | NUL-terminated; most of the other readers don't do this, so we | |
d2a52b27 DC |
597 | can just use the given copy, unless we're in the Java case. */ |
598 | if (gsymbol->language == language_java) | |
599 | { | |
600 | char *alloc_name; | |
d2a52b27 | 601 | |
433759f7 | 602 | lookup_len = len + JAVA_PREFIX_LEN; |
d2a52b27 DC |
603 | alloc_name = alloca (lookup_len + 1); |
604 | memcpy (alloc_name, JAVA_PREFIX, JAVA_PREFIX_LEN); | |
605 | memcpy (alloc_name + JAVA_PREFIX_LEN, linkage_name, len); | |
606 | alloc_name[lookup_len] = '\0'; | |
607 | ||
608 | lookup_name = alloc_name; | |
609 | linkage_name_copy = alloc_name + JAVA_PREFIX_LEN; | |
610 | } | |
611 | else if (linkage_name[len] != '\0') | |
2de7ced7 | 612 | { |
980cae7a DC |
613 | char *alloc_name; |
614 | ||
433759f7 | 615 | lookup_len = len; |
d2a52b27 | 616 | alloc_name = alloca (lookup_len + 1); |
980cae7a | 617 | memcpy (alloc_name, linkage_name, len); |
d2a52b27 | 618 | alloc_name[lookup_len] = '\0'; |
980cae7a | 619 | |
d2a52b27 | 620 | lookup_name = alloc_name; |
980cae7a | 621 | linkage_name_copy = alloc_name; |
2de7ced7 DJ |
622 | } |
623 | else | |
980cae7a | 624 | { |
d2a52b27 DC |
625 | lookup_len = len; |
626 | lookup_name = linkage_name; | |
980cae7a DC |
627 | linkage_name_copy = linkage_name; |
628 | } | |
2de7ced7 | 629 | |
04a679b8 TT |
630 | entry.mangled = (char *) lookup_name; |
631 | slot = ((struct demangled_name_entry **) | |
632 | htab_find_slot (objfile->demangled_names_hash, | |
633 | &entry, INSERT)); | |
2de7ced7 DJ |
634 | |
635 | /* If this name is not in the hash table, add it. */ | |
636 | if (*slot == NULL) | |
637 | { | |
980cae7a DC |
638 | char *demangled_name = symbol_find_demangled_name (gsymbol, |
639 | linkage_name_copy); | |
2de7ced7 DJ |
640 | int demangled_len = demangled_name ? strlen (demangled_name) : 0; |
641 | ||
04a679b8 TT |
642 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
643 | lookup_name==linkage_name. In this case, we already have the | |
644 | mangled name saved, and we don't have a demangled name. So, | |
645 | you might think we could save a little space by not recording | |
646 | this in the hash table at all. | |
647 | ||
648 | It turns out that it is actually important to still save such | |
649 | an entry in the hash table, because storing this name gives | |
705b5767 | 650 | us better bcache hit rates for partial symbols. */ |
04a679b8 TT |
651 | if (!copy_name && lookup_name == linkage_name) |
652 | { | |
653 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
654 | offsetof (struct demangled_name_entry, | |
655 | demangled) | |
656 | + demangled_len + 1); | |
657 | (*slot)->mangled = (char *) lookup_name; | |
658 | } | |
659 | else | |
660 | { | |
661 | /* If we must copy the mangled name, put it directly after | |
662 | the demangled name so we can have a single | |
663 | allocation. */ | |
664 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
665 | offsetof (struct demangled_name_entry, | |
666 | demangled) | |
667 | + lookup_len + demangled_len + 2); | |
668 | (*slot)->mangled = &((*slot)->demangled[demangled_len + 1]); | |
669 | strcpy ((*slot)->mangled, lookup_name); | |
670 | } | |
671 | ||
980cae7a | 672 | if (demangled_name != NULL) |
2de7ced7 | 673 | { |
04a679b8 | 674 | strcpy ((*slot)->demangled, demangled_name); |
2de7ced7 DJ |
675 | xfree (demangled_name); |
676 | } | |
677 | else | |
04a679b8 | 678 | (*slot)->demangled[0] = '\0'; |
2de7ced7 DJ |
679 | } |
680 | ||
72dcaf82 | 681 | gsymbol->name = (*slot)->mangled + lookup_len - len; |
04a679b8 | 682 | if ((*slot)->demangled[0] != '\0') |
29df156d | 683 | symbol_set_demangled_name (gsymbol, (*slot)->demangled, objfile); |
2de7ced7 | 684 | else |
29df156d | 685 | symbol_set_demangled_name (gsymbol, NULL, objfile); |
2de7ced7 DJ |
686 | } |
687 | ||
22abf04a DC |
688 | /* Return the source code name of a symbol. In languages where |
689 | demangling is necessary, this is the demangled name. */ | |
690 | ||
691 | char * | |
692 | symbol_natural_name (const struct general_symbol_info *gsymbol) | |
693 | { | |
9af17804 | 694 | switch (gsymbol->language) |
22abf04a | 695 | { |
1f8173e6 | 696 | case language_cplus: |
6aecb9c2 | 697 | case language_d: |
1f8173e6 PH |
698 | case language_java: |
699 | case language_objc: | |
f55ee35c | 700 | case language_fortran: |
b250c185 SW |
701 | if (symbol_get_demangled_name (gsymbol) != NULL) |
702 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
703 | break; |
704 | case language_ada: | |
b250c185 SW |
705 | if (symbol_get_demangled_name (gsymbol) != NULL) |
706 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
707 | else |
708 | return ada_decode_symbol (gsymbol); | |
709 | break; | |
710 | default: | |
711 | break; | |
22abf04a | 712 | } |
1f8173e6 | 713 | return gsymbol->name; |
22abf04a DC |
714 | } |
715 | ||
9cc0d196 | 716 | /* Return the demangled name for a symbol based on the language for |
c378eb4e | 717 | that symbol. If no demangled name exists, return NULL. */ |
9cc0d196 | 718 | char * |
df8a16a1 | 719 | symbol_demangled_name (const struct general_symbol_info *gsymbol) |
9cc0d196 | 720 | { |
9af17804 | 721 | switch (gsymbol->language) |
1f8173e6 PH |
722 | { |
723 | case language_cplus: | |
6aecb9c2 | 724 | case language_d: |
1f8173e6 PH |
725 | case language_java: |
726 | case language_objc: | |
f55ee35c | 727 | case language_fortran: |
b250c185 SW |
728 | if (symbol_get_demangled_name (gsymbol) != NULL) |
729 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
730 | break; |
731 | case language_ada: | |
b250c185 SW |
732 | if (symbol_get_demangled_name (gsymbol) != NULL) |
733 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
734 | else |
735 | return ada_decode_symbol (gsymbol); | |
736 | break; | |
737 | default: | |
738 | break; | |
739 | } | |
740 | return NULL; | |
9cc0d196 | 741 | } |
fe39c653 | 742 | |
4725b721 PH |
743 | /* Return the search name of a symbol---generally the demangled or |
744 | linkage name of the symbol, depending on how it will be searched for. | |
9af17804 | 745 | If there is no distinct demangled name, then returns the same value |
c378eb4e | 746 | (same pointer) as SYMBOL_LINKAGE_NAME. */ |
fc062ac6 JB |
747 | char * |
748 | symbol_search_name (const struct general_symbol_info *gsymbol) | |
749 | { | |
1f8173e6 PH |
750 | if (gsymbol->language == language_ada) |
751 | return gsymbol->name; | |
752 | else | |
753 | return symbol_natural_name (gsymbol); | |
4725b721 PH |
754 | } |
755 | ||
fe39c653 EZ |
756 | /* Initialize the structure fields to zero values. */ |
757 | void | |
758 | init_sal (struct symtab_and_line *sal) | |
759 | { | |
6c95b8df | 760 | sal->pspace = NULL; |
fe39c653 EZ |
761 | sal->symtab = 0; |
762 | sal->section = 0; | |
763 | sal->line = 0; | |
764 | sal->pc = 0; | |
765 | sal->end = 0; | |
ed0616c6 VP |
766 | sal->explicit_pc = 0; |
767 | sal->explicit_line = 0; | |
fe39c653 | 768 | } |
c906108c SS |
769 | \f |
770 | ||
94277a38 DJ |
771 | /* Return 1 if the two sections are the same, or if they could |
772 | plausibly be copies of each other, one in an original object | |
773 | file and another in a separated debug file. */ | |
774 | ||
775 | int | |
714835d5 UW |
776 | matching_obj_sections (struct obj_section *obj_first, |
777 | struct obj_section *obj_second) | |
94277a38 | 778 | { |
714835d5 UW |
779 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
780 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
781 | struct objfile *obj; |
782 | ||
783 | /* If they're the same section, then they match. */ | |
784 | if (first == second) | |
785 | return 1; | |
786 | ||
787 | /* If either is NULL, give up. */ | |
788 | if (first == NULL || second == NULL) | |
789 | return 0; | |
790 | ||
791 | /* This doesn't apply to absolute symbols. */ | |
792 | if (first->owner == NULL || second->owner == NULL) | |
793 | return 0; | |
794 | ||
795 | /* If they're in the same object file, they must be different sections. */ | |
796 | if (first->owner == second->owner) | |
797 | return 0; | |
798 | ||
799 | /* Check whether the two sections are potentially corresponding. They must | |
800 | have the same size, address, and name. We can't compare section indexes, | |
801 | which would be more reliable, because some sections may have been | |
802 | stripped. */ | |
803 | if (bfd_get_section_size (first) != bfd_get_section_size (second)) | |
804 | return 0; | |
805 | ||
818f79f6 | 806 | /* In-memory addresses may start at a different offset, relativize them. */ |
94277a38 | 807 | if (bfd_get_section_vma (first->owner, first) |
818f79f6 DJ |
808 | - bfd_get_start_address (first->owner) |
809 | != bfd_get_section_vma (second->owner, second) | |
810 | - bfd_get_start_address (second->owner)) | |
94277a38 DJ |
811 | return 0; |
812 | ||
813 | if (bfd_get_section_name (first->owner, first) == NULL | |
814 | || bfd_get_section_name (second->owner, second) == NULL | |
815 | || strcmp (bfd_get_section_name (first->owner, first), | |
816 | bfd_get_section_name (second->owner, second)) != 0) | |
817 | return 0; | |
818 | ||
819 | /* Otherwise check that they are in corresponding objfiles. */ | |
820 | ||
821 | ALL_OBJFILES (obj) | |
822 | if (obj->obfd == first->owner) | |
823 | break; | |
824 | gdb_assert (obj != NULL); | |
825 | ||
826 | if (obj->separate_debug_objfile != NULL | |
827 | && obj->separate_debug_objfile->obfd == second->owner) | |
828 | return 1; | |
829 | if (obj->separate_debug_objfile_backlink != NULL | |
830 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
831 | return 1; | |
832 | ||
833 | return 0; | |
834 | } | |
c5aa993b | 835 | |
ccefe4c4 TT |
836 | struct symtab * |
837 | find_pc_sect_symtab_via_partial (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 838 | { |
52f0bd74 | 839 | struct objfile *objfile; |
8a48e967 DJ |
840 | struct minimal_symbol *msymbol; |
841 | ||
842 | /* If we know that this is not a text address, return failure. This is | |
843 | necessary because we loop based on texthigh and textlow, which do | |
844 | not include the data ranges. */ | |
845 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
846 | if (msymbol | |
712f90be TT |
847 | && (MSYMBOL_TYPE (msymbol) == mst_data |
848 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
849 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
850 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
851 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 852 | return NULL; |
c906108c | 853 | |
ff013f42 | 854 | ALL_OBJFILES (objfile) |
ccefe4c4 TT |
855 | { |
856 | struct symtab *result = NULL; | |
433759f7 | 857 | |
ccefe4c4 TT |
858 | if (objfile->sf) |
859 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, msymbol, | |
860 | pc, section, 0); | |
861 | if (result) | |
862 | return result; | |
863 | } | |
ff013f42 JK |
864 | |
865 | return NULL; | |
c906108c | 866 | } |
c906108c SS |
867 | \f |
868 | /* Debug symbols usually don't have section information. We need to dig that | |
869 | out of the minimal symbols and stash that in the debug symbol. */ | |
870 | ||
ccefe4c4 | 871 | void |
907fc202 UW |
872 | fixup_section (struct general_symbol_info *ginfo, |
873 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
874 | { |
875 | struct minimal_symbol *msym; | |
c906108c | 876 | |
bccdca4a UW |
877 | /* First, check whether a minimal symbol with the same name exists |
878 | and points to the same address. The address check is required | |
879 | e.g. on PowerPC64, where the minimal symbol for a function will | |
880 | point to the function descriptor, while the debug symbol will | |
881 | point to the actual function code. */ | |
907fc202 UW |
882 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->name, objfile); |
883 | if (msym) | |
7a78d0ee | 884 | { |
714835d5 | 885 | ginfo->obj_section = SYMBOL_OBJ_SECTION (msym); |
7a78d0ee KB |
886 | ginfo->section = SYMBOL_SECTION (msym); |
887 | } | |
907fc202 | 888 | else |
19e2d14b KB |
889 | { |
890 | /* Static, function-local variables do appear in the linker | |
891 | (minimal) symbols, but are frequently given names that won't | |
892 | be found via lookup_minimal_symbol(). E.g., it has been | |
893 | observed in frv-uclinux (ELF) executables that a static, | |
894 | function-local variable named "foo" might appear in the | |
895 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
896 | point in attempting to extend the lookup-by-name mechanism to | |
897 | handle this case due to the fact that there can be multiple | |
898 | names. | |
9af17804 | 899 | |
19e2d14b KB |
900 | So, instead, search the section table when lookup by name has |
901 | failed. The ``addr'' and ``endaddr'' fields may have already | |
902 | been relocated. If so, the relocation offset (i.e. the | |
903 | ANOFFSET value) needs to be subtracted from these values when | |
904 | performing the comparison. We unconditionally subtract it, | |
905 | because, when no relocation has been performed, the ANOFFSET | |
906 | value will simply be zero. | |
9af17804 | 907 | |
19e2d14b KB |
908 | The address of the symbol whose section we're fixing up HAS |
909 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
910 | the section isn't yet known and knowing the section is | |
911 | necessary in order to add the correct relocation value. In | |
912 | other words, we wouldn't even be in this function (attempting | |
913 | to compute the section) if it were already known. | |
914 | ||
915 | Note that it is possible to search the minimal symbols | |
916 | (subtracting the relocation value if necessary) to find the | |
917 | matching minimal symbol, but this is overkill and much less | |
918 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
919 | symbol, only its section. |
920 | ||
19e2d14b KB |
921 | Note that this technique (of doing a section table search) |
922 | can fail when unrelocated section addresses overlap. For | |
923 | this reason, we still attempt a lookup by name prior to doing | |
924 | a search of the section table. */ | |
9af17804 | 925 | |
19e2d14b | 926 | struct obj_section *s; |
433759f7 | 927 | |
19e2d14b KB |
928 | ALL_OBJFILE_OSECTIONS (objfile, s) |
929 | { | |
930 | int idx = s->the_bfd_section->index; | |
931 | CORE_ADDR offset = ANOFFSET (objfile->section_offsets, idx); | |
932 | ||
f1f6aadf PA |
933 | if (obj_section_addr (s) - offset <= addr |
934 | && addr < obj_section_endaddr (s) - offset) | |
19e2d14b | 935 | { |
714835d5 | 936 | ginfo->obj_section = s; |
19e2d14b KB |
937 | ginfo->section = idx; |
938 | return; | |
939 | } | |
940 | } | |
941 | } | |
c906108c SS |
942 | } |
943 | ||
944 | struct symbol * | |
fba45db2 | 945 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 946 | { |
907fc202 UW |
947 | CORE_ADDR addr; |
948 | ||
c906108c SS |
949 | if (!sym) |
950 | return NULL; | |
951 | ||
714835d5 | 952 | if (SYMBOL_OBJ_SECTION (sym)) |
c906108c SS |
953 | return sym; |
954 | ||
907fc202 UW |
955 | /* We either have an OBJFILE, or we can get at it from the sym's |
956 | symtab. Anything else is a bug. */ | |
957 | gdb_assert (objfile || SYMBOL_SYMTAB (sym)); | |
958 | ||
959 | if (objfile == NULL) | |
960 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
961 | ||
962 | /* We should have an objfile by now. */ | |
963 | gdb_assert (objfile); | |
964 | ||
965 | switch (SYMBOL_CLASS (sym)) | |
966 | { | |
967 | case LOC_STATIC: | |
968 | case LOC_LABEL: | |
907fc202 UW |
969 | addr = SYMBOL_VALUE_ADDRESS (sym); |
970 | break; | |
971 | case LOC_BLOCK: | |
972 | addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
973 | break; | |
974 | ||
975 | default: | |
976 | /* Nothing else will be listed in the minsyms -- no use looking | |
977 | it up. */ | |
978 | return sym; | |
979 | } | |
980 | ||
981 | fixup_section (&sym->ginfo, addr, objfile); | |
c906108c SS |
982 | |
983 | return sym; | |
984 | } | |
985 | ||
c906108c | 986 | /* Find the definition for a specified symbol name NAME |
176620f1 | 987 | in domain DOMAIN, visible from lexical block BLOCK. |
c906108c | 988 | Returns the struct symbol pointer, or zero if no symbol is found. |
c906108c SS |
989 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if |
990 | NAME is a field of the current implied argument `this'. If so set | |
9af17804 | 991 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. |
c906108c | 992 | BLOCK_FOUND is set to the block in which NAME is found (in the case of |
c378eb4e | 993 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ |
c906108c SS |
994 | |
995 | /* This function has a bunch of loops in it and it would seem to be | |
996 | attractive to put in some QUIT's (though I'm not really sure | |
997 | whether it can run long enough to be really important). But there | |
998 | are a few calls for which it would appear to be bad news to quit | |
7ca9f392 AC |
999 | out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c. (Note |
1000 | that there is C++ code below which can error(), but that probably | |
1001 | doesn't affect these calls since they are looking for a known | |
1002 | variable and thus can probably assume it will never hit the C++ | |
1003 | code). */ | |
c906108c | 1004 | |
774b6a14 TT |
1005 | struct symbol * |
1006 | lookup_symbol_in_language (const char *name, const struct block *block, | |
1007 | const domain_enum domain, enum language lang, | |
1008 | int *is_a_field_of_this) | |
c906108c | 1009 | { |
729051e6 DJ |
1010 | char *demangled_name = NULL; |
1011 | const char *modified_name = NULL; | |
fba7f19c | 1012 | struct symbol *returnval; |
9ee6bb93 | 1013 | struct cleanup *cleanup = make_cleanup (null_cleanup, 0); |
c906108c | 1014 | |
729051e6 DJ |
1015 | modified_name = name; |
1016 | ||
433759f7 | 1017 | /* If we are using C++, D, or Java, demangle the name before doing a |
c378eb4e | 1018 | lookup, so we can always binary search. */ |
53c5240f | 1019 | if (lang == language_cplus) |
729051e6 DJ |
1020 | { |
1021 | demangled_name = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
1022 | if (demangled_name) | |
1023 | { | |
729051e6 | 1024 | modified_name = demangled_name; |
9ee6bb93 | 1025 | make_cleanup (xfree, demangled_name); |
729051e6 | 1026 | } |
71c25dea TT |
1027 | else |
1028 | { | |
1029 | /* If we were given a non-mangled name, canonicalize it | |
1030 | according to the language (so far only for C++). */ | |
1031 | demangled_name = cp_canonicalize_string (name); | |
1032 | if (demangled_name) | |
1033 | { | |
1034 | modified_name = demangled_name; | |
1035 | make_cleanup (xfree, demangled_name); | |
1036 | } | |
1037 | } | |
729051e6 | 1038 | } |
53c5240f | 1039 | else if (lang == language_java) |
987504bb | 1040 | { |
9af17804 | 1041 | demangled_name = cplus_demangle (name, |
987504bb JJ |
1042 | DMGL_ANSI | DMGL_PARAMS | DMGL_JAVA); |
1043 | if (demangled_name) | |
1044 | { | |
987504bb | 1045 | modified_name = demangled_name; |
9ee6bb93 | 1046 | make_cleanup (xfree, demangled_name); |
987504bb JJ |
1047 | } |
1048 | } | |
6aecb9c2 JB |
1049 | else if (lang == language_d) |
1050 | { | |
1051 | demangled_name = d_demangle (name, 0); | |
1052 | if (demangled_name) | |
1053 | { | |
1054 | modified_name = demangled_name; | |
1055 | make_cleanup (xfree, demangled_name); | |
1056 | } | |
1057 | } | |
729051e6 | 1058 | |
94af9270 | 1059 | returnval = lookup_symbol_aux (modified_name, block, domain, lang, |
774b6a14 | 1060 | is_a_field_of_this); |
9ee6bb93 | 1061 | do_cleanups (cleanup); |
fba7f19c | 1062 | |
9af17804 | 1063 | return returnval; |
fba7f19c EZ |
1064 | } |
1065 | ||
53c5240f PA |
1066 | /* Behave like lookup_symbol_in_language, but performed with the |
1067 | current language. */ | |
1068 | ||
1069 | struct symbol * | |
1070 | lookup_symbol (const char *name, const struct block *block, | |
2570f2b7 | 1071 | domain_enum domain, int *is_a_field_of_this) |
53c5240f PA |
1072 | { |
1073 | return lookup_symbol_in_language (name, block, domain, | |
1074 | current_language->la_language, | |
2570f2b7 | 1075 | is_a_field_of_this); |
53c5240f PA |
1076 | } |
1077 | ||
1078 | /* Behave like lookup_symbol except that NAME is the natural name | |
5ad1c190 DC |
1079 | of the symbol that we're looking for and, if LINKAGE_NAME is |
1080 | non-NULL, ensure that the symbol's linkage name matches as | |
1081 | well. */ | |
1082 | ||
fba7f19c | 1083 | static struct symbol * |
94af9270 KS |
1084 | lookup_symbol_aux (const char *name, const struct block *block, |
1085 | const domain_enum domain, enum language language, | |
774b6a14 | 1086 | int *is_a_field_of_this) |
fba7f19c | 1087 | { |
8155455b | 1088 | struct symbol *sym; |
53c5240f | 1089 | const struct language_defn *langdef; |
406bc4de | 1090 | |
9a146a11 EZ |
1091 | /* Make sure we do something sensible with is_a_field_of_this, since |
1092 | the callers that set this parameter to some non-null value will | |
1093 | certainly use it later and expect it to be either 0 or 1. | |
1094 | If we don't set it, the contents of is_a_field_of_this are | |
1095 | undefined. */ | |
1096 | if (is_a_field_of_this != NULL) | |
1097 | *is_a_field_of_this = 0; | |
1098 | ||
e4051eeb DC |
1099 | /* Search specified block and its superiors. Don't search |
1100 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 1101 | |
13387711 | 1102 | sym = lookup_symbol_aux_local (name, block, domain, language); |
8155455b DC |
1103 | if (sym != NULL) |
1104 | return sym; | |
c906108c | 1105 | |
53c5240f | 1106 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 1107 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
1108 | |
1109 | langdef = language_def (language); | |
5f9a71c3 | 1110 | |
2b2d9e11 VP |
1111 | if (langdef->la_name_of_this != NULL && is_a_field_of_this != NULL |
1112 | && block != NULL) | |
c906108c | 1113 | { |
2b2d9e11 | 1114 | struct symbol *sym = NULL; |
8540c487 | 1115 | const struct block *function_block = block; |
433759f7 | 1116 | |
2b2d9e11 VP |
1117 | /* 'this' is only defined in the function's block, so find the |
1118 | enclosing function block. */ | |
8540c487 SW |
1119 | for (; function_block && !BLOCK_FUNCTION (function_block); |
1120 | function_block = BLOCK_SUPERBLOCK (function_block)); | |
2b2d9e11 | 1121 | |
8540c487 SW |
1122 | if (function_block && !dict_empty (BLOCK_DICT (function_block))) |
1123 | sym = lookup_block_symbol (function_block, langdef->la_name_of_this, | |
94af9270 | 1124 | VAR_DOMAIN); |
2b2d9e11 | 1125 | if (sym) |
c906108c | 1126 | { |
2b2d9e11 | 1127 | struct type *t = sym->type; |
9af17804 | 1128 | |
2b2d9e11 VP |
1129 | /* I'm not really sure that type of this can ever |
1130 | be typedefed; just be safe. */ | |
1131 | CHECK_TYPEDEF (t); | |
1132 | if (TYPE_CODE (t) == TYPE_CODE_PTR | |
1133 | || TYPE_CODE (t) == TYPE_CODE_REF) | |
1134 | t = TYPE_TARGET_TYPE (t); | |
9af17804 | 1135 | |
2b2d9e11 VP |
1136 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT |
1137 | && TYPE_CODE (t) != TYPE_CODE_UNION) | |
9af17804 | 1138 | error (_("Internal error: `%s' is not an aggregate"), |
2b2d9e11 | 1139 | langdef->la_name_of_this); |
9af17804 | 1140 | |
2b2d9e11 VP |
1141 | if (check_field (t, name)) |
1142 | { | |
1143 | *is_a_field_of_this = 1; | |
2b2d9e11 VP |
1144 | return NULL; |
1145 | } | |
c906108c SS |
1146 | } |
1147 | } | |
1148 | ||
53c5240f | 1149 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 1150 | up static and global variables. */ |
c906108c | 1151 | |
774b6a14 TT |
1152 | sym = langdef->la_lookup_symbol_nonlocal (name, block, domain); |
1153 | if (sym != NULL) | |
1154 | return sym; | |
c906108c | 1155 | |
774b6a14 TT |
1156 | /* Now search all static file-level symbols. Not strictly correct, |
1157 | but more useful than an error. */ | |
41f62f39 JK |
1158 | |
1159 | return lookup_static_symbol_aux (name, domain); | |
1160 | } | |
1161 | ||
1162 | /* Search all static file-level symbols for NAME from DOMAIN. Do the symtabs | |
1163 | first, then check the psymtabs. If a psymtab indicates the existence of the | |
1164 | desired name as a file-level static, then do psymtab-to-symtab conversion on | |
c378eb4e | 1165 | the fly and return the found symbol. */ |
41f62f39 JK |
1166 | |
1167 | struct symbol * | |
1168 | lookup_static_symbol_aux (const char *name, const domain_enum domain) | |
1169 | { | |
1170 | struct objfile *objfile; | |
1171 | struct symbol *sym; | |
c906108c | 1172 | |
94af9270 | 1173 | sym = lookup_symbol_aux_symtabs (STATIC_BLOCK, name, domain); |
8155455b DC |
1174 | if (sym != NULL) |
1175 | return sym; | |
9af17804 | 1176 | |
ccefe4c4 TT |
1177 | ALL_OBJFILES (objfile) |
1178 | { | |
1179 | sym = lookup_symbol_aux_quick (objfile, STATIC_BLOCK, name, domain); | |
1180 | if (sym != NULL) | |
1181 | return sym; | |
1182 | } | |
c906108c | 1183 | |
8155455b | 1184 | return NULL; |
c906108c | 1185 | } |
8155455b | 1186 | |
e4051eeb | 1187 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 1188 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b DC |
1189 | |
1190 | static struct symbol * | |
94af9270 | 1191 | lookup_symbol_aux_local (const char *name, const struct block *block, |
13387711 SW |
1192 | const domain_enum domain, |
1193 | enum language language) | |
8155455b DC |
1194 | { |
1195 | struct symbol *sym; | |
89a9d1b1 | 1196 | const struct block *static_block = block_static_block (block); |
13387711 SW |
1197 | const char *scope = block_scope (block); |
1198 | ||
e4051eeb DC |
1199 | /* Check if either no block is specified or it's a global block. */ |
1200 | ||
89a9d1b1 DC |
1201 | if (static_block == NULL) |
1202 | return NULL; | |
e4051eeb | 1203 | |
89a9d1b1 | 1204 | while (block != static_block) |
f61e8913 | 1205 | { |
94af9270 | 1206 | sym = lookup_symbol_aux_block (name, block, domain); |
f61e8913 DC |
1207 | if (sym != NULL) |
1208 | return sym; | |
edb3359d | 1209 | |
f55ee35c | 1210 | if (language == language_cplus || language == language_fortran) |
13387711 | 1211 | { |
34eaf542 TT |
1212 | sym = cp_lookup_symbol_imports_or_template (scope, name, block, |
1213 | domain); | |
13387711 SW |
1214 | if (sym != NULL) |
1215 | return sym; | |
1216 | } | |
1217 | ||
edb3359d DJ |
1218 | if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block)) |
1219 | break; | |
f61e8913 DC |
1220 | block = BLOCK_SUPERBLOCK (block); |
1221 | } | |
1222 | ||
edb3359d | 1223 | /* We've reached the edge of the function without finding a result. */ |
e4051eeb | 1224 | |
f61e8913 DC |
1225 | return NULL; |
1226 | } | |
1227 | ||
3a40aaa0 UW |
1228 | /* Look up OBJFILE to BLOCK. */ |
1229 | ||
c0201579 | 1230 | struct objfile * |
3a40aaa0 UW |
1231 | lookup_objfile_from_block (const struct block *block) |
1232 | { | |
1233 | struct objfile *obj; | |
1234 | struct symtab *s; | |
1235 | ||
1236 | if (block == NULL) | |
1237 | return NULL; | |
1238 | ||
1239 | block = block_global_block (block); | |
1240 | /* Go through SYMTABS. */ | |
1241 | ALL_SYMTABS (obj, s) | |
1242 | if (block == BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK)) | |
61f0d762 JK |
1243 | { |
1244 | if (obj->separate_debug_objfile_backlink) | |
1245 | obj = obj->separate_debug_objfile_backlink; | |
1246 | ||
1247 | return obj; | |
1248 | } | |
3a40aaa0 UW |
1249 | |
1250 | return NULL; | |
1251 | } | |
1252 | ||
6c9353d3 PA |
1253 | /* Look up a symbol in a block; if found, fixup the symbol, and set |
1254 | block_found appropriately. */ | |
f61e8913 | 1255 | |
5f9a71c3 | 1256 | struct symbol * |
94af9270 | 1257 | lookup_symbol_aux_block (const char *name, const struct block *block, |
21b556f4 | 1258 | const domain_enum domain) |
f61e8913 DC |
1259 | { |
1260 | struct symbol *sym; | |
f61e8913 | 1261 | |
94af9270 | 1262 | sym = lookup_block_symbol (block, name, domain); |
f61e8913 | 1263 | if (sym) |
8155455b | 1264 | { |
f61e8913 | 1265 | block_found = block; |
21b556f4 | 1266 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
1267 | } |
1268 | ||
1269 | return NULL; | |
1270 | } | |
1271 | ||
3a40aaa0 UW |
1272 | /* Check all global symbols in OBJFILE in symtabs and |
1273 | psymtabs. */ | |
1274 | ||
1275 | struct symbol * | |
15d123c9 | 1276 | lookup_global_symbol_from_objfile (const struct objfile *main_objfile, |
3a40aaa0 | 1277 | const char *name, |
21b556f4 | 1278 | const domain_enum domain) |
3a40aaa0 | 1279 | { |
15d123c9 | 1280 | const struct objfile *objfile; |
3a40aaa0 UW |
1281 | struct symbol *sym; |
1282 | struct blockvector *bv; | |
1283 | const struct block *block; | |
1284 | struct symtab *s; | |
3a40aaa0 | 1285 | |
15d123c9 TG |
1286 | for (objfile = main_objfile; |
1287 | objfile; | |
1288 | objfile = objfile_separate_debug_iterate (main_objfile, objfile)) | |
1289 | { | |
1290 | /* Go through symtabs. */ | |
1291 | ALL_OBJFILE_SYMTABS (objfile, s) | |
1292 | { | |
1293 | bv = BLOCKVECTOR (s); | |
1294 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
94af9270 | 1295 | sym = lookup_block_symbol (block, name, domain); |
15d123c9 TG |
1296 | if (sym) |
1297 | { | |
1298 | block_found = block; | |
1299 | return fixup_symbol_section (sym, (struct objfile *)objfile); | |
1300 | } | |
1301 | } | |
1302 | ||
ccefe4c4 TT |
1303 | sym = lookup_symbol_aux_quick ((struct objfile *) objfile, GLOBAL_BLOCK, |
1304 | name, domain); | |
1305 | if (sym) | |
1306 | return sym; | |
15d123c9 | 1307 | } |
56e3f43c | 1308 | |
3a40aaa0 UW |
1309 | return NULL; |
1310 | } | |
1311 | ||
8155455b DC |
1312 | /* Check to see if the symbol is defined in one of the symtabs. |
1313 | BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
1314 | depending on whether or not we want to search global symbols or | |
1315 | static symbols. */ | |
1316 | ||
1317 | static struct symbol * | |
94af9270 | 1318 | lookup_symbol_aux_symtabs (int block_index, const char *name, |
21b556f4 | 1319 | const domain_enum domain) |
8155455b DC |
1320 | { |
1321 | struct symbol *sym; | |
1322 | struct objfile *objfile; | |
1323 | struct blockvector *bv; | |
1324 | const struct block *block; | |
1325 | struct symtab *s; | |
1326 | ||
58b6ab13 | 1327 | ALL_OBJFILES (objfile) |
8155455b | 1328 | { |
774b6a14 TT |
1329 | if (objfile->sf) |
1330 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, | |
1331 | block_index, | |
1332 | name, domain); | |
1333 | ||
58b6ab13 TT |
1334 | ALL_OBJFILE_SYMTABS (objfile, s) |
1335 | if (s->primary) | |
1336 | { | |
1337 | bv = BLOCKVECTOR (s); | |
1338 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
1339 | sym = lookup_block_symbol (block, name, domain); | |
1340 | if (sym) | |
1341 | { | |
1342 | block_found = block; | |
1343 | return fixup_symbol_section (sym, objfile); | |
1344 | } | |
1345 | } | |
8155455b DC |
1346 | } |
1347 | ||
1348 | return NULL; | |
1349 | } | |
1350 | ||
ccefe4c4 TT |
1351 | /* A helper function for lookup_symbol_aux that interfaces with the |
1352 | "quick" symbol table functions. */ | |
8155455b DC |
1353 | |
1354 | static struct symbol * | |
ccefe4c4 TT |
1355 | lookup_symbol_aux_quick (struct objfile *objfile, int kind, |
1356 | const char *name, const domain_enum domain) | |
8155455b | 1357 | { |
ccefe4c4 | 1358 | struct symtab *symtab; |
8155455b DC |
1359 | struct blockvector *bv; |
1360 | const struct block *block; | |
ccefe4c4 | 1361 | struct symbol *sym; |
8155455b | 1362 | |
ccefe4c4 TT |
1363 | if (!objfile->sf) |
1364 | return NULL; | |
1365 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, domain); | |
1366 | if (!symtab) | |
1367 | return NULL; | |
8155455b | 1368 | |
ccefe4c4 TT |
1369 | bv = BLOCKVECTOR (symtab); |
1370 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1371 | sym = lookup_block_symbol (block, name, domain); | |
1372 | if (!sym) | |
1373 | { | |
1374 | /* This shouldn't be necessary, but as a last resort try | |
1375 | looking in the statics even though the psymtab claimed | |
c378eb4e | 1376 | the symbol was global, or vice-versa. It's possible |
ccefe4c4 TT |
1377 | that the psymtab gets it wrong in some cases. */ |
1378 | ||
1379 | /* FIXME: carlton/2002-09-30: Should we really do that? | |
1380 | If that happens, isn't it likely to be a GDB error, in | |
1381 | which case we should fix the GDB error rather than | |
1382 | silently dealing with it here? So I'd vote for | |
1383 | removing the check for the symbol in the other | |
1384 | block. */ | |
1385 | block = BLOCKVECTOR_BLOCK (bv, | |
1386 | kind == GLOBAL_BLOCK ? | |
1387 | STATIC_BLOCK : GLOBAL_BLOCK); | |
1388 | sym = lookup_block_symbol (block, name, domain); | |
1389 | if (!sym) | |
3e43a32a MS |
1390 | error (_("\ |
1391 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
1392 | %s may be an inlined function, or may be a template function\n\ | |
1393 | (if a template, try specifying an instantiation: %s<type>)."), | |
ccefe4c4 TT |
1394 | kind == GLOBAL_BLOCK ? "global" : "static", |
1395 | name, symtab->filename, name, name); | |
1396 | } | |
1397 | return fixup_symbol_section (sym, objfile); | |
8155455b DC |
1398 | } |
1399 | ||
5f9a71c3 DC |
1400 | /* A default version of lookup_symbol_nonlocal for use by languages |
1401 | that can't think of anything better to do. This implements the C | |
1402 | lookup rules. */ | |
1403 | ||
1404 | struct symbol * | |
1405 | basic_lookup_symbol_nonlocal (const char *name, | |
5f9a71c3 | 1406 | const struct block *block, |
21b556f4 | 1407 | const domain_enum domain) |
5f9a71c3 DC |
1408 | { |
1409 | struct symbol *sym; | |
1410 | ||
1411 | /* NOTE: carlton/2003-05-19: The comments below were written when | |
1412 | this (or what turned into this) was part of lookup_symbol_aux; | |
1413 | I'm much less worried about these questions now, since these | |
1414 | decisions have turned out well, but I leave these comments here | |
1415 | for posterity. */ | |
1416 | ||
1417 | /* NOTE: carlton/2002-12-05: There is a question as to whether or | |
1418 | not it would be appropriate to search the current global block | |
1419 | here as well. (That's what this code used to do before the | |
1420 | is_a_field_of_this check was moved up.) On the one hand, it's | |
1421 | redundant with the lookup_symbol_aux_symtabs search that happens | |
1422 | next. On the other hand, if decode_line_1 is passed an argument | |
1423 | like filename:var, then the user presumably wants 'var' to be | |
1424 | searched for in filename. On the third hand, there shouldn't be | |
1425 | multiple global variables all of which are named 'var', and it's | |
1426 | not like decode_line_1 has ever restricted its search to only | |
1427 | global variables in a single filename. All in all, only | |
1428 | searching the static block here seems best: it's correct and it's | |
1429 | cleanest. */ | |
1430 | ||
1431 | /* NOTE: carlton/2002-12-05: There's also a possible performance | |
1432 | issue here: if you usually search for global symbols in the | |
1433 | current file, then it would be slightly better to search the | |
1434 | current global block before searching all the symtabs. But there | |
1435 | are other factors that have a much greater effect on performance | |
1436 | than that one, so I don't think we should worry about that for | |
1437 | now. */ | |
1438 | ||
94af9270 | 1439 | sym = lookup_symbol_static (name, block, domain); |
5f9a71c3 DC |
1440 | if (sym != NULL) |
1441 | return sym; | |
1442 | ||
94af9270 | 1443 | return lookup_symbol_global (name, block, domain); |
5f9a71c3 DC |
1444 | } |
1445 | ||
1446 | /* Lookup a symbol in the static block associated to BLOCK, if there | |
1447 | is one; do nothing if BLOCK is NULL or a global block. */ | |
1448 | ||
1449 | struct symbol * | |
1450 | lookup_symbol_static (const char *name, | |
5f9a71c3 | 1451 | const struct block *block, |
21b556f4 | 1452 | const domain_enum domain) |
5f9a71c3 DC |
1453 | { |
1454 | const struct block *static_block = block_static_block (block); | |
1455 | ||
1456 | if (static_block != NULL) | |
94af9270 | 1457 | return lookup_symbol_aux_block (name, static_block, domain); |
5f9a71c3 DC |
1458 | else |
1459 | return NULL; | |
1460 | } | |
1461 | ||
1462 | /* Lookup a symbol in all files' global blocks (searching psymtabs if | |
1463 | necessary). */ | |
1464 | ||
1465 | struct symbol * | |
1466 | lookup_symbol_global (const char *name, | |
3a40aaa0 | 1467 | const struct block *block, |
21b556f4 | 1468 | const domain_enum domain) |
5f9a71c3 | 1469 | { |
3a40aaa0 UW |
1470 | struct symbol *sym = NULL; |
1471 | struct objfile *objfile = NULL; | |
1472 | ||
1473 | /* Call library-specific lookup procedure. */ | |
1474 | objfile = lookup_objfile_from_block (block); | |
1475 | if (objfile != NULL) | |
94af9270 | 1476 | sym = solib_global_lookup (objfile, name, domain); |
3a40aaa0 UW |
1477 | if (sym != NULL) |
1478 | return sym; | |
5f9a71c3 | 1479 | |
94af9270 | 1480 | sym = lookup_symbol_aux_symtabs (GLOBAL_BLOCK, name, domain); |
5f9a71c3 DC |
1481 | if (sym != NULL) |
1482 | return sym; | |
1483 | ||
ccefe4c4 TT |
1484 | ALL_OBJFILES (objfile) |
1485 | { | |
1486 | sym = lookup_symbol_aux_quick (objfile, GLOBAL_BLOCK, name, domain); | |
1487 | if (sym) | |
1488 | return sym; | |
1489 | } | |
1490 | ||
1491 | return NULL; | |
5f9a71c3 DC |
1492 | } |
1493 | ||
5eeb2539 | 1494 | int |
9af17804 | 1495 | symbol_matches_domain (enum language symbol_language, |
5eeb2539 AR |
1496 | domain_enum symbol_domain, |
1497 | domain_enum domain) | |
1498 | { | |
9af17804 | 1499 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". |
5eeb2539 AR |
1500 | A Java class declaration also defines a typedef for the class. |
1501 | Similarly, any Ada type declaration implicitly defines a typedef. */ | |
1502 | if (symbol_language == language_cplus | |
6aecb9c2 | 1503 | || symbol_language == language_d |
5eeb2539 AR |
1504 | || symbol_language == language_java |
1505 | || symbol_language == language_ada) | |
1506 | { | |
1507 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
1508 | && symbol_domain == STRUCT_DOMAIN) | |
1509 | return 1; | |
1510 | } | |
1511 | /* For all other languages, strict match is required. */ | |
1512 | return (symbol_domain == domain); | |
1513 | } | |
1514 | ||
ccefe4c4 TT |
1515 | /* Look up a type named NAME in the struct_domain. The type returned |
1516 | must not be opaque -- i.e., must have at least one field | |
1517 | defined. */ | |
c906108c | 1518 | |
ccefe4c4 TT |
1519 | struct type * |
1520 | lookup_transparent_type (const char *name) | |
c906108c | 1521 | { |
ccefe4c4 TT |
1522 | return current_language->la_lookup_transparent_type (name); |
1523 | } | |
9af17804 | 1524 | |
ccefe4c4 TT |
1525 | /* A helper for basic_lookup_transparent_type that interfaces with the |
1526 | "quick" symbol table functions. */ | |
357e46e7 | 1527 | |
ccefe4c4 TT |
1528 | static struct type * |
1529 | basic_lookup_transparent_type_quick (struct objfile *objfile, int kind, | |
1530 | const char *name) | |
1531 | { | |
1532 | struct symtab *symtab; | |
1533 | struct blockvector *bv; | |
1534 | struct block *block; | |
1535 | struct symbol *sym; | |
c906108c | 1536 | |
ccefe4c4 TT |
1537 | if (!objfile->sf) |
1538 | return NULL; | |
1539 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, STRUCT_DOMAIN); | |
1540 | if (!symtab) | |
1541 | return NULL; | |
c906108c | 1542 | |
ccefe4c4 TT |
1543 | bv = BLOCKVECTOR (symtab); |
1544 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1545 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1546 | if (!sym) | |
9af17804 | 1547 | { |
ccefe4c4 TT |
1548 | int other_kind = kind == GLOBAL_BLOCK ? STATIC_BLOCK : GLOBAL_BLOCK; |
1549 | ||
1550 | /* This shouldn't be necessary, but as a last resort | |
1551 | * try looking in the 'other kind' even though the psymtab | |
c378eb4e | 1552 | * claimed the symbol was one thing. It's possible that |
ccefe4c4 TT |
1553 | * the psymtab gets it wrong in some cases. |
1554 | */ | |
1555 | block = BLOCKVECTOR_BLOCK (bv, other_kind); | |
1556 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1557 | if (!sym) | |
c378eb4e | 1558 | /* FIXME; error is wrong in one case. */ |
3e43a32a MS |
1559 | error (_("\ |
1560 | Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\ | |
ccefe4c4 TT |
1561 | %s may be an inlined function, or may be a template function\n\ |
1562 | (if a template, try specifying an instantiation: %s<type>)."), | |
1563 | name, symtab->filename, name, name); | |
c906108c | 1564 | } |
ccefe4c4 TT |
1565 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
1566 | return SYMBOL_TYPE (sym); | |
c906108c | 1567 | |
ccefe4c4 | 1568 | return NULL; |
b368761e | 1569 | } |
c906108c | 1570 | |
b368761e DC |
1571 | /* The standard implementation of lookup_transparent_type. This code |
1572 | was modeled on lookup_symbol -- the parts not relevant to looking | |
1573 | up types were just left out. In particular it's assumed here that | |
1574 | types are available in struct_domain and only at file-static or | |
1575 | global blocks. */ | |
c906108c SS |
1576 | |
1577 | struct type * | |
b368761e | 1578 | basic_lookup_transparent_type (const char *name) |
c906108c | 1579 | { |
52f0bd74 AC |
1580 | struct symbol *sym; |
1581 | struct symtab *s = NULL; | |
c906108c | 1582 | struct blockvector *bv; |
52f0bd74 AC |
1583 | struct objfile *objfile; |
1584 | struct block *block; | |
ccefe4c4 | 1585 | struct type *t; |
c906108c SS |
1586 | |
1587 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 1588 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
1589 | of the desired name as a global, then do psymtab-to-symtab |
1590 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 1591 | |
58b6ab13 | 1592 | ALL_OBJFILES (objfile) |
c5aa993b | 1593 | { |
774b6a14 TT |
1594 | if (objfile->sf) |
1595 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, | |
1596 | GLOBAL_BLOCK, | |
1597 | name, STRUCT_DOMAIN); | |
1598 | ||
58b6ab13 TT |
1599 | ALL_OBJFILE_SYMTABS (objfile, s) |
1600 | if (s->primary) | |
1601 | { | |
1602 | bv = BLOCKVECTOR (s); | |
1603 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1604 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1605 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1606 | { | |
1607 | return SYMBOL_TYPE (sym); | |
1608 | } | |
1609 | } | |
c5aa993b | 1610 | } |
c906108c | 1611 | |
ccefe4c4 | 1612 | ALL_OBJFILES (objfile) |
c5aa993b | 1613 | { |
ccefe4c4 TT |
1614 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); |
1615 | if (t) | |
1616 | return t; | |
c5aa993b | 1617 | } |
c906108c SS |
1618 | |
1619 | /* Now search the static file-level symbols. | |
1620 | Not strictly correct, but more useful than an error. | |
1621 | Do the symtab's first, then | |
c378eb4e | 1622 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 1623 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 1624 | conversion on the fly and return the found symbol. */ |
c906108c | 1625 | |
54ec275a | 1626 | ALL_OBJFILES (objfile) |
c5aa993b | 1627 | { |
774b6a14 TT |
1628 | if (objfile->sf) |
1629 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, STATIC_BLOCK, | |
1630 | name, STRUCT_DOMAIN); | |
1631 | ||
54ec275a | 1632 | ALL_OBJFILE_SYMTABS (objfile, s) |
c5aa993b | 1633 | { |
54ec275a KS |
1634 | bv = BLOCKVECTOR (s); |
1635 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1636 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1637 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1638 | { | |
1639 | return SYMBOL_TYPE (sym); | |
1640 | } | |
c5aa993b JM |
1641 | } |
1642 | } | |
c906108c | 1643 | |
ccefe4c4 | 1644 | ALL_OBJFILES (objfile) |
c5aa993b | 1645 | { |
ccefe4c4 TT |
1646 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); |
1647 | if (t) | |
1648 | return t; | |
c5aa993b | 1649 | } |
ccefe4c4 | 1650 | |
c906108c SS |
1651 | return (struct type *) 0; |
1652 | } | |
1653 | ||
1654 | ||
c378eb4e | 1655 | /* Find the name of the file containing main(). */ |
c906108c | 1656 | /* FIXME: What about languages without main() or specially linked |
c378eb4e | 1657 | executables that have no main() ? */ |
c906108c | 1658 | |
dd786858 | 1659 | const char * |
ccefe4c4 | 1660 | find_main_filename (void) |
c906108c | 1661 | { |
52f0bd74 | 1662 | struct objfile *objfile; |
dd786858 | 1663 | char *name = main_name (); |
c906108c | 1664 | |
ccefe4c4 | 1665 | ALL_OBJFILES (objfile) |
c5aa993b | 1666 | { |
dd786858 TT |
1667 | const char *result; |
1668 | ||
ccefe4c4 TT |
1669 | if (!objfile->sf) |
1670 | continue; | |
1671 | result = objfile->sf->qf->find_symbol_file (objfile, name); | |
1672 | if (result) | |
1673 | return result; | |
c5aa993b | 1674 | } |
c906108c SS |
1675 | return (NULL); |
1676 | } | |
1677 | ||
176620f1 | 1678 | /* Search BLOCK for symbol NAME in DOMAIN. |
c906108c SS |
1679 | |
1680 | Note that if NAME is the demangled form of a C++ symbol, we will fail | |
1681 | to find a match during the binary search of the non-encoded names, but | |
1682 | for now we don't worry about the slight inefficiency of looking for | |
1683 | a match we'll never find, since it will go pretty quick. Once the | |
1684 | binary search terminates, we drop through and do a straight linear | |
1bae87b9 | 1685 | search on the symbols. Each symbol which is marked as being a ObjC/C++ |
9af17804 | 1686 | symbol (language_cplus or language_objc set) has both the encoded and |
c378eb4e | 1687 | non-encoded names tested for a match. */ |
c906108c SS |
1688 | |
1689 | struct symbol * | |
aa1ee363 | 1690 | lookup_block_symbol (const struct block *block, const char *name, |
176620f1 | 1691 | const domain_enum domain) |
c906108c | 1692 | { |
de4f826b DC |
1693 | struct dict_iterator iter; |
1694 | struct symbol *sym; | |
c906108c | 1695 | |
de4f826b | 1696 | if (!BLOCK_FUNCTION (block)) |
261397f8 | 1697 | { |
de4f826b DC |
1698 | for (sym = dict_iter_name_first (BLOCK_DICT (block), name, &iter); |
1699 | sym != NULL; | |
1700 | sym = dict_iter_name_next (name, &iter)) | |
261397f8 | 1701 | { |
5eeb2539 | 1702 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 1703 | SYMBOL_DOMAIN (sym), domain)) |
261397f8 DJ |
1704 | return sym; |
1705 | } | |
1706 | return NULL; | |
1707 | } | |
526e70c0 | 1708 | else |
c906108c | 1709 | { |
526e70c0 DC |
1710 | /* Note that parameter symbols do not always show up last in the |
1711 | list; this loop makes sure to take anything else other than | |
1712 | parameter symbols first; it only uses parameter symbols as a | |
1713 | last resort. Note that this only takes up extra computation | |
1714 | time on a match. */ | |
de4f826b DC |
1715 | |
1716 | struct symbol *sym_found = NULL; | |
1717 | ||
1718 | for (sym = dict_iter_name_first (BLOCK_DICT (block), name, &iter); | |
1719 | sym != NULL; | |
1720 | sym = dict_iter_name_next (name, &iter)) | |
c906108c | 1721 | { |
5eeb2539 | 1722 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 1723 | SYMBOL_DOMAIN (sym), domain)) |
c906108c | 1724 | { |
c906108c | 1725 | sym_found = sym; |
2a2d4dc3 | 1726 | if (!SYMBOL_IS_ARGUMENT (sym)) |
c906108c SS |
1727 | { |
1728 | break; | |
1729 | } | |
1730 | } | |
c906108c | 1731 | } |
c378eb4e | 1732 | return (sym_found); /* Will be NULL if not found. */ |
c906108c | 1733 | } |
c906108c SS |
1734 | } |
1735 | ||
c906108c | 1736 | /* Find the symtab associated with PC and SECTION. Look through the |
c378eb4e | 1737 | psymtabs and read in another symtab if necessary. */ |
c906108c SS |
1738 | |
1739 | struct symtab * | |
714835d5 | 1740 | find_pc_sect_symtab (CORE_ADDR pc, struct obj_section *section) |
c906108c | 1741 | { |
52f0bd74 | 1742 | struct block *b; |
c906108c | 1743 | struct blockvector *bv; |
52f0bd74 AC |
1744 | struct symtab *s = NULL; |
1745 | struct symtab *best_s = NULL; | |
52f0bd74 | 1746 | struct objfile *objfile; |
6c95b8df | 1747 | struct program_space *pspace; |
c906108c | 1748 | CORE_ADDR distance = 0; |
8a48e967 DJ |
1749 | struct minimal_symbol *msymbol; |
1750 | ||
6c95b8df PA |
1751 | pspace = current_program_space; |
1752 | ||
8a48e967 DJ |
1753 | /* If we know that this is not a text address, return failure. This is |
1754 | necessary because we loop based on the block's high and low code | |
1755 | addresses, which do not include the data ranges, and because | |
1756 | we call find_pc_sect_psymtab which has a similar restriction based | |
1757 | on the partial_symtab's texthigh and textlow. */ | |
1758 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
1759 | if (msymbol | |
712f90be TT |
1760 | && (MSYMBOL_TYPE (msymbol) == mst_data |
1761 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
1762 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
1763 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
1764 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 1765 | return NULL; |
c906108c SS |
1766 | |
1767 | /* Search all symtabs for the one whose file contains our address, and which | |
1768 | is the smallest of all the ones containing the address. This is designed | |
1769 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
1770 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
1771 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
1772 | ||
1773 | This happens for native ecoff format, where code from included files | |
c378eb4e | 1774 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
1775 | been read in already via the dependency mechanism. |
1776 | It might be swifter to create several symtabs with the same name | |
1777 | like xcoff does (I'm not sure). | |
1778 | ||
1779 | It also happens for objfiles that have their functions reordered. | |
1780 | For these, the symtab we are looking for is not necessarily read in. */ | |
1781 | ||
11309657 | 1782 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
1783 | { |
1784 | bv = BLOCKVECTOR (s); | |
1785 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
c906108c | 1786 | |
c5aa993b | 1787 | if (BLOCK_START (b) <= pc |
c5aa993b | 1788 | && BLOCK_END (b) > pc |
c5aa993b JM |
1789 | && (distance == 0 |
1790 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
1791 | { | |
1792 | /* For an objfile that has its functions reordered, | |
1793 | find_pc_psymtab will find the proper partial symbol table | |
1794 | and we simply return its corresponding symtab. */ | |
1795 | /* In order to better support objfiles that contain both | |
1796 | stabs and coff debugging info, we continue on if a psymtab | |
c378eb4e | 1797 | can't be found. */ |
ccefe4c4 | 1798 | if ((objfile->flags & OBJF_REORDERED) && objfile->sf) |
c5aa993b | 1799 | { |
ccefe4c4 | 1800 | struct symtab *result; |
433759f7 | 1801 | |
ccefe4c4 TT |
1802 | result |
1803 | = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
1804 | msymbol, | |
1805 | pc, section, | |
1806 | 0); | |
1807 | if (result) | |
1808 | return result; | |
c5aa993b JM |
1809 | } |
1810 | if (section != 0) | |
1811 | { | |
de4f826b | 1812 | struct dict_iterator iter; |
261397f8 | 1813 | struct symbol *sym = NULL; |
c906108c | 1814 | |
de4f826b | 1815 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 1816 | { |
261397f8 | 1817 | fixup_symbol_section (sym, objfile); |
714835d5 | 1818 | if (matching_obj_sections (SYMBOL_OBJ_SECTION (sym), section)) |
c5aa993b JM |
1819 | break; |
1820 | } | |
de4f826b | 1821 | if (sym == NULL) |
c378eb4e MS |
1822 | continue; /* No symbol in this symtab matches |
1823 | section. */ | |
c5aa993b JM |
1824 | } |
1825 | distance = BLOCK_END (b) - BLOCK_START (b); | |
1826 | best_s = s; | |
1827 | } | |
1828 | } | |
c906108c SS |
1829 | |
1830 | if (best_s != NULL) | |
c5aa993b | 1831 | return (best_s); |
c906108c | 1832 | |
ccefe4c4 TT |
1833 | ALL_OBJFILES (objfile) |
1834 | { | |
1835 | struct symtab *result; | |
433759f7 | 1836 | |
ccefe4c4 TT |
1837 | if (!objfile->sf) |
1838 | continue; | |
1839 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
1840 | msymbol, | |
1841 | pc, section, | |
1842 | 1); | |
1843 | if (result) | |
1844 | return result; | |
1845 | } | |
1846 | ||
1847 | return NULL; | |
c906108c SS |
1848 | } |
1849 | ||
c378eb4e MS |
1850 | /* Find the symtab associated with PC. Look through the psymtabs and read |
1851 | in another symtab if necessary. Backward compatibility, no section. */ | |
c906108c SS |
1852 | |
1853 | struct symtab * | |
fba45db2 | 1854 | find_pc_symtab (CORE_ADDR pc) |
c906108c SS |
1855 | { |
1856 | return find_pc_sect_symtab (pc, find_pc_mapped_section (pc)); | |
1857 | } | |
c906108c | 1858 | \f |
c5aa993b | 1859 | |
7e73cedf | 1860 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
1861 | Return a structure containing a symtab pointer, a line number, |
1862 | and a pc range for the entire source line. | |
1863 | The value's .pc field is NOT the specified pc. | |
1864 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
1865 | use the line that ends there. Otherwise, in that case, the line | |
1866 | that begins there is used. */ | |
1867 | ||
1868 | /* The big complication here is that a line may start in one file, and end just | |
1869 | before the start of another file. This usually occurs when you #include | |
1870 | code in the middle of a subroutine. To properly find the end of a line's PC | |
1871 | range, we must search all symtabs associated with this compilation unit, and | |
1872 | find the one whose first PC is closer than that of the next line in this | |
1873 | symtab. */ | |
1874 | ||
1875 | /* If it's worth the effort, we could be using a binary search. */ | |
1876 | ||
1877 | struct symtab_and_line | |
714835d5 | 1878 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c SS |
1879 | { |
1880 | struct symtab *s; | |
52f0bd74 AC |
1881 | struct linetable *l; |
1882 | int len; | |
1883 | int i; | |
1884 | struct linetable_entry *item; | |
c906108c SS |
1885 | struct symtab_and_line val; |
1886 | struct blockvector *bv; | |
1887 | struct minimal_symbol *msymbol; | |
1888 | struct minimal_symbol *mfunsym; | |
93b55aa1 | 1889 | struct objfile *objfile; |
c906108c SS |
1890 | |
1891 | /* Info on best line seen so far, and where it starts, and its file. */ | |
1892 | ||
1893 | struct linetable_entry *best = NULL; | |
1894 | CORE_ADDR best_end = 0; | |
1895 | struct symtab *best_symtab = 0; | |
1896 | ||
1897 | /* Store here the first line number | |
1898 | of a file which contains the line at the smallest pc after PC. | |
1899 | If we don't find a line whose range contains PC, | |
1900 | we will use a line one less than this, | |
1901 | with a range from the start of that file to the first line's pc. */ | |
1902 | struct linetable_entry *alt = NULL; | |
1903 | struct symtab *alt_symtab = 0; | |
1904 | ||
1905 | /* Info on best line seen in this file. */ | |
1906 | ||
1907 | struct linetable_entry *prev; | |
1908 | ||
1909 | /* If this pc is not from the current frame, | |
1910 | it is the address of the end of a call instruction. | |
1911 | Quite likely that is the start of the following statement. | |
1912 | But what we want is the statement containing the instruction. | |
1913 | Fudge the pc to make sure we get that. */ | |
1914 | ||
fe39c653 | 1915 | init_sal (&val); /* initialize to zeroes */ |
c906108c | 1916 | |
6c95b8df PA |
1917 | val.pspace = current_program_space; |
1918 | ||
b77b1eb7 JB |
1919 | /* It's tempting to assume that, if we can't find debugging info for |
1920 | any function enclosing PC, that we shouldn't search for line | |
1921 | number info, either. However, GAS can emit line number info for | |
1922 | assembly files --- very helpful when debugging hand-written | |
1923 | assembly code. In such a case, we'd have no debug info for the | |
1924 | function, but we would have line info. */ | |
648f4f79 | 1925 | |
c906108c SS |
1926 | if (notcurrent) |
1927 | pc -= 1; | |
1928 | ||
c5aa993b | 1929 | /* elz: added this because this function returned the wrong |
c906108c | 1930 | information if the pc belongs to a stub (import/export) |
c378eb4e | 1931 | to call a shlib function. This stub would be anywhere between |
9af17804 | 1932 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
1933 | taken to be the one of the line before the pc. */ |
1934 | ||
c906108c | 1935 | /* RT: Further explanation: |
c5aa993b | 1936 | |
c906108c SS |
1937 | * We have stubs (trampolines) inserted between procedures. |
1938 | * | |
1939 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
1940 | * exists in the main image. | |
1941 | * | |
1942 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 1943 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
1944 | * the others appear as text. E.g.: |
1945 | * | |
9af17804 | 1946 | * Minimal symbol table for main image |
c906108c SS |
1947 | * main: code for main (text symbol) |
1948 | * shr1: stub (trampoline symbol) | |
1949 | * foo: code for foo (text symbol) | |
1950 | * ... | |
1951 | * Minimal symbol table for "shr1" image: | |
1952 | * ... | |
1953 | * shr1: code for shr1 (text symbol) | |
1954 | * ... | |
1955 | * | |
1956 | * So the code below is trying to detect if we are in the stub | |
1957 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
1958 | * and if found, do the symbolization from the real-code address | |
1959 | * rather than the stub address. | |
1960 | * | |
1961 | * Assumptions being made about the minimal symbol table: | |
1962 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 1963 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 1964 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
1965 | * symbol (the "foo" text symbol for example) and will not |
1966 | * return the trampoline. | |
1967 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
1968 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 1969 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
1970 | * check for the address being the same, to avoid an |
1971 | * infinite recursion. | |
1972 | */ | |
c5aa993b JM |
1973 | msymbol = lookup_minimal_symbol_by_pc (pc); |
1974 | if (msymbol != NULL) | |
c906108c | 1975 | if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline) |
c5aa993b | 1976 | { |
2335f48e | 1977 | mfunsym = lookup_minimal_symbol_text (SYMBOL_LINKAGE_NAME (msymbol), |
5520a790 | 1978 | NULL); |
c5aa993b JM |
1979 | if (mfunsym == NULL) |
1980 | /* I eliminated this warning since it is coming out | |
1981 | * in the following situation: | |
1982 | * gdb shmain // test program with shared libraries | |
1983 | * (gdb) break shr1 // function in shared lib | |
1984 | * Warning: In stub for ... | |
9af17804 | 1985 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
1986 | * so of course we can't find the real func/line info, |
1987 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 1988 | * So I commented out the warning. RT */ |
3e43a32a | 1989 | /* warning ("In stub for %s; unable to find real function/line info", |
c378eb4e MS |
1990 | SYMBOL_LINKAGE_NAME (msymbol)); */ |
1991 | ; | |
c5aa993b | 1992 | /* fall through */ |
3e43a32a MS |
1993 | else if (SYMBOL_VALUE_ADDRESS (mfunsym) |
1994 | == SYMBOL_VALUE_ADDRESS (msymbol)) | |
c5aa993b | 1995 | /* Avoid infinite recursion */ |
c378eb4e | 1996 | /* See above comment about why warning is commented out. */ |
3e43a32a | 1997 | /* warning ("In stub for %s; unable to find real function/line info", |
c378eb4e MS |
1998 | SYMBOL_LINKAGE_NAME (msymbol)); */ |
1999 | ; | |
c5aa993b JM |
2000 | /* fall through */ |
2001 | else | |
82cf6c60 | 2002 | return find_pc_line (SYMBOL_VALUE_ADDRESS (mfunsym), 0); |
c5aa993b | 2003 | } |
c906108c SS |
2004 | |
2005 | ||
2006 | s = find_pc_sect_symtab (pc, section); | |
2007 | if (!s) | |
2008 | { | |
c378eb4e | 2009 | /* If no symbol information, return previous pc. */ |
c906108c SS |
2010 | if (notcurrent) |
2011 | pc++; | |
2012 | val.pc = pc; | |
2013 | return val; | |
2014 | } | |
2015 | ||
2016 | bv = BLOCKVECTOR (s); | |
93b55aa1 | 2017 | objfile = s->objfile; |
c906108c SS |
2018 | |
2019 | /* Look at all the symtabs that share this blockvector. | |
2020 | They all have the same apriori range, that we found was right; | |
2021 | but they have different line tables. */ | |
2022 | ||
93b55aa1 | 2023 | ALL_OBJFILE_SYMTABS (objfile, s) |
c906108c | 2024 | { |
93b55aa1 JK |
2025 | if (BLOCKVECTOR (s) != bv) |
2026 | continue; | |
2027 | ||
c906108c SS |
2028 | /* Find the best line in this symtab. */ |
2029 | l = LINETABLE (s); | |
2030 | if (!l) | |
c5aa993b | 2031 | continue; |
c906108c SS |
2032 | len = l->nitems; |
2033 | if (len <= 0) | |
2034 | { | |
2035 | /* I think len can be zero if the symtab lacks line numbers | |
2036 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
2037 | I'm not sure which, and maybe it depends on the symbol | |
2038 | reader). */ | |
2039 | continue; | |
2040 | } | |
2041 | ||
2042 | prev = NULL; | |
c378eb4e | 2043 | item = l->item; /* Get first line info. */ |
c906108c SS |
2044 | |
2045 | /* Is this file's first line closer than the first lines of other files? | |
c5aa993b | 2046 | If so, record this file, and its first line, as best alternate. */ |
c906108c SS |
2047 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
2048 | { | |
2049 | alt = item; | |
2050 | alt_symtab = s; | |
2051 | } | |
2052 | ||
2053 | for (i = 0; i < len; i++, item++) | |
2054 | { | |
2055 | /* Leave prev pointing to the linetable entry for the last line | |
2056 | that started at or before PC. */ | |
2057 | if (item->pc > pc) | |
2058 | break; | |
2059 | ||
2060 | prev = item; | |
2061 | } | |
2062 | ||
2063 | /* At this point, prev points at the line whose start addr is <= pc, and | |
c5aa993b JM |
2064 | item points at the next line. If we ran off the end of the linetable |
2065 | (pc >= start of the last line), then prev == item. If pc < start of | |
2066 | the first line, prev will not be set. */ | |
c906108c SS |
2067 | |
2068 | /* Is this file's best line closer than the best in the other files? | |
083ae935 DJ |
2069 | If so, record this file, and its best line, as best so far. Don't |
2070 | save prev if it represents the end of a function (i.e. line number | |
2071 | 0) instead of a real line. */ | |
c906108c | 2072 | |
083ae935 | 2073 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
2074 | { |
2075 | best = prev; | |
2076 | best_symtab = s; | |
25d53da1 KB |
2077 | |
2078 | /* Discard BEST_END if it's before the PC of the current BEST. */ | |
2079 | if (best_end <= best->pc) | |
2080 | best_end = 0; | |
c906108c | 2081 | } |
25d53da1 KB |
2082 | |
2083 | /* If another line (denoted by ITEM) is in the linetable and its | |
2084 | PC is after BEST's PC, but before the current BEST_END, then | |
2085 | use ITEM's PC as the new best_end. */ | |
2086 | if (best && i < len && item->pc > best->pc | |
2087 | && (best_end == 0 || best_end > item->pc)) | |
2088 | best_end = item->pc; | |
c906108c SS |
2089 | } |
2090 | ||
2091 | if (!best_symtab) | |
2092 | { | |
e86e87f7 DJ |
2093 | /* If we didn't find any line number info, just return zeros. |
2094 | We used to return alt->line - 1 here, but that could be | |
2095 | anywhere; if we don't have line number info for this PC, | |
2096 | don't make some up. */ | |
2097 | val.pc = pc; | |
c906108c | 2098 | } |
e8717518 FF |
2099 | else if (best->line == 0) |
2100 | { | |
2101 | /* If our best fit is in a range of PC's for which no line | |
2102 | number info is available (line number is zero) then we didn't | |
c378eb4e | 2103 | find any valid line information. */ |
e8717518 FF |
2104 | val.pc = pc; |
2105 | } | |
c906108c SS |
2106 | else |
2107 | { | |
2108 | val.symtab = best_symtab; | |
2109 | val.line = best->line; | |
2110 | val.pc = best->pc; | |
2111 | if (best_end && (!alt || best_end < alt->pc)) | |
2112 | val.end = best_end; | |
2113 | else if (alt) | |
2114 | val.end = alt->pc; | |
2115 | else | |
2116 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
2117 | } | |
2118 | val.section = section; | |
2119 | return val; | |
2120 | } | |
2121 | ||
c378eb4e | 2122 | /* Backward compatibility (no section). */ |
c906108c SS |
2123 | |
2124 | struct symtab_and_line | |
fba45db2 | 2125 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 2126 | { |
714835d5 | 2127 | struct obj_section *section; |
c906108c SS |
2128 | |
2129 | section = find_pc_overlay (pc); | |
2130 | if (pc_in_unmapped_range (pc, section)) | |
2131 | pc = overlay_mapped_address (pc, section); | |
2132 | return find_pc_sect_line (pc, section, notcurrent); | |
2133 | } | |
c906108c | 2134 | \f |
c906108c SS |
2135 | /* Find line number LINE in any symtab whose name is the same as |
2136 | SYMTAB. | |
2137 | ||
2138 | If found, return the symtab that contains the linetable in which it was | |
2139 | found, set *INDEX to the index in the linetable of the best entry | |
2140 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
2141 | exact match. | |
2142 | ||
2143 | If not found, return NULL. */ | |
2144 | ||
50641945 | 2145 | struct symtab * |
433759f7 MS |
2146 | find_line_symtab (struct symtab *symtab, int line, |
2147 | int *index, int *exact_match) | |
c906108c | 2148 | { |
6f43c46f | 2149 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
2150 | |
2151 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
2152 | so far seen. */ | |
2153 | ||
2154 | int best_index; | |
2155 | struct linetable *best_linetable; | |
2156 | struct symtab *best_symtab; | |
2157 | ||
2158 | /* First try looking it up in the given symtab. */ | |
2159 | best_linetable = LINETABLE (symtab); | |
2160 | best_symtab = symtab; | |
2161 | best_index = find_line_common (best_linetable, line, &exact); | |
2162 | if (best_index < 0 || !exact) | |
2163 | { | |
2164 | /* Didn't find an exact match. So we better keep looking for | |
c5aa993b JM |
2165 | another symtab with the same name. In the case of xcoff, |
2166 | multiple csects for one source file (produced by IBM's FORTRAN | |
2167 | compiler) produce multiple symtabs (this is unavoidable | |
2168 | assuming csects can be at arbitrary places in memory and that | |
2169 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
2170 | |
2171 | /* BEST is the smallest linenumber > LINE so far seen, | |
c5aa993b JM |
2172 | or 0 if none has been seen so far. |
2173 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
2174 | int best; |
2175 | ||
2176 | struct objfile *objfile; | |
2177 | struct symtab *s; | |
2178 | ||
2179 | if (best_index >= 0) | |
2180 | best = best_linetable->item[best_index].line; | |
2181 | else | |
2182 | best = 0; | |
2183 | ||
ccefe4c4 | 2184 | ALL_OBJFILES (objfile) |
51432cca | 2185 | { |
ccefe4c4 TT |
2186 | if (objfile->sf) |
2187 | objfile->sf->qf->expand_symtabs_with_filename (objfile, | |
2188 | symtab->filename); | |
51432cca CES |
2189 | } |
2190 | ||
3ffc00b8 JB |
2191 | /* Get symbol full file name if possible. */ |
2192 | symtab_to_fullname (symtab); | |
2193 | ||
c906108c | 2194 | ALL_SYMTABS (objfile, s) |
c5aa993b JM |
2195 | { |
2196 | struct linetable *l; | |
2197 | int ind; | |
c906108c | 2198 | |
3ffc00b8 | 2199 | if (FILENAME_CMP (symtab->filename, s->filename) != 0) |
c5aa993b | 2200 | continue; |
3ffc00b8 JB |
2201 | if (symtab->fullname != NULL |
2202 | && symtab_to_fullname (s) != NULL | |
2203 | && FILENAME_CMP (symtab->fullname, s->fullname) != 0) | |
2204 | continue; | |
c5aa993b JM |
2205 | l = LINETABLE (s); |
2206 | ind = find_line_common (l, line, &exact); | |
2207 | if (ind >= 0) | |
2208 | { | |
2209 | if (exact) | |
2210 | { | |
2211 | best_index = ind; | |
2212 | best_linetable = l; | |
2213 | best_symtab = s; | |
2214 | goto done; | |
2215 | } | |
2216 | if (best == 0 || l->item[ind].line < best) | |
2217 | { | |
2218 | best = l->item[ind].line; | |
2219 | best_index = ind; | |
2220 | best_linetable = l; | |
2221 | best_symtab = s; | |
2222 | } | |
2223 | } | |
2224 | } | |
c906108c | 2225 | } |
c5aa993b | 2226 | done: |
c906108c SS |
2227 | if (best_index < 0) |
2228 | return NULL; | |
2229 | ||
2230 | if (index) | |
2231 | *index = best_index; | |
2232 | if (exact_match) | |
2233 | *exact_match = exact; | |
2234 | ||
2235 | return best_symtab; | |
2236 | } | |
2237 | \f | |
2238 | /* Set the PC value for a given source file and line number and return true. | |
2239 | Returns zero for invalid line number (and sets the PC to 0). | |
2240 | The source file is specified with a struct symtab. */ | |
2241 | ||
2242 | int | |
fba45db2 | 2243 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
2244 | { |
2245 | struct linetable *l; | |
2246 | int ind; | |
2247 | ||
2248 | *pc = 0; | |
2249 | if (symtab == 0) | |
2250 | return 0; | |
2251 | ||
2252 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
2253 | if (symtab != NULL) | |
2254 | { | |
2255 | l = LINETABLE (symtab); | |
2256 | *pc = l->item[ind].pc; | |
2257 | return 1; | |
2258 | } | |
2259 | else | |
2260 | return 0; | |
2261 | } | |
2262 | ||
2263 | /* Find the range of pc values in a line. | |
2264 | Store the starting pc of the line into *STARTPTR | |
2265 | and the ending pc (start of next line) into *ENDPTR. | |
2266 | Returns 1 to indicate success. | |
2267 | Returns 0 if could not find the specified line. */ | |
2268 | ||
2269 | int | |
fba45db2 KB |
2270 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
2271 | CORE_ADDR *endptr) | |
c906108c SS |
2272 | { |
2273 | CORE_ADDR startaddr; | |
2274 | struct symtab_and_line found_sal; | |
2275 | ||
2276 | startaddr = sal.pc; | |
c5aa993b | 2277 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
c906108c SS |
2278 | return 0; |
2279 | ||
2280 | /* This whole function is based on address. For example, if line 10 has | |
2281 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
2282 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
2283 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
2284 | This also insures that we never give a range like "starts at 0x134 | |
2285 | and ends at 0x12c". */ | |
2286 | ||
2287 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
2288 | if (found_sal.line != sal.line) | |
2289 | { | |
2290 | /* The specified line (sal) has zero bytes. */ | |
2291 | *startptr = found_sal.pc; | |
2292 | *endptr = found_sal.pc; | |
2293 | } | |
2294 | else | |
2295 | { | |
2296 | *startptr = found_sal.pc; | |
2297 | *endptr = found_sal.end; | |
2298 | } | |
2299 | return 1; | |
2300 | } | |
2301 | ||
2302 | /* Given a line table and a line number, return the index into the line | |
2303 | table for the pc of the nearest line whose number is >= the specified one. | |
2304 | Return -1 if none is found. The value is >= 0 if it is an index. | |
2305 | ||
2306 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
2307 | ||
2308 | static int | |
aa1ee363 | 2309 | find_line_common (struct linetable *l, int lineno, |
fba45db2 | 2310 | int *exact_match) |
c906108c | 2311 | { |
52f0bd74 AC |
2312 | int i; |
2313 | int len; | |
c906108c SS |
2314 | |
2315 | /* BEST is the smallest linenumber > LINENO so far seen, | |
2316 | or 0 if none has been seen so far. | |
2317 | BEST_INDEX identifies the item for it. */ | |
2318 | ||
2319 | int best_index = -1; | |
2320 | int best = 0; | |
2321 | ||
b7589f7d DJ |
2322 | *exact_match = 0; |
2323 | ||
c906108c SS |
2324 | if (lineno <= 0) |
2325 | return -1; | |
2326 | if (l == 0) | |
2327 | return -1; | |
2328 | ||
2329 | len = l->nitems; | |
2330 | for (i = 0; i < len; i++) | |
2331 | { | |
aa1ee363 | 2332 | struct linetable_entry *item = &(l->item[i]); |
c906108c SS |
2333 | |
2334 | if (item->line == lineno) | |
2335 | { | |
2336 | /* Return the first (lowest address) entry which matches. */ | |
2337 | *exact_match = 1; | |
2338 | return i; | |
2339 | } | |
2340 | ||
2341 | if (item->line > lineno && (best == 0 || item->line < best)) | |
2342 | { | |
2343 | best = item->line; | |
2344 | best_index = i; | |
2345 | } | |
2346 | } | |
2347 | ||
2348 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
2349 | return best_index; |
2350 | } | |
2351 | ||
2352 | int | |
fba45db2 | 2353 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
2354 | { |
2355 | struct symtab_and_line sal; | |
433759f7 | 2356 | |
c906108c SS |
2357 | sal = find_pc_line (pc, 0); |
2358 | *startptr = sal.pc; | |
2359 | *endptr = sal.end; | |
2360 | return sal.symtab != 0; | |
2361 | } | |
2362 | ||
8c7a1ee8 EZ |
2363 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
2364 | address for that function that has an entry in SYMTAB's line info | |
2365 | table. If such an entry cannot be found, return FUNC_ADDR | |
2366 | unaltered. */ | |
2367 | CORE_ADDR | |
2368 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) | |
2369 | { | |
2370 | CORE_ADDR func_start, func_end; | |
2371 | struct linetable *l; | |
952a6d41 | 2372 | int i; |
8c7a1ee8 EZ |
2373 | |
2374 | /* Give up if this symbol has no lineinfo table. */ | |
2375 | l = LINETABLE (symtab); | |
2376 | if (l == NULL) | |
2377 | return func_addr; | |
2378 | ||
2379 | /* Get the range for the function's PC values, or give up if we | |
2380 | cannot, for some reason. */ | |
2381 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
2382 | return func_addr; | |
2383 | ||
2384 | /* Linetable entries are ordered by PC values, see the commentary in | |
2385 | symtab.h where `struct linetable' is defined. Thus, the first | |
2386 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
2387 | address we are looking for. */ | |
2388 | for (i = 0; i < l->nitems; i++) | |
2389 | { | |
2390 | struct linetable_entry *item = &(l->item[i]); | |
2391 | ||
2392 | /* Don't use line numbers of zero, they mark special entries in | |
2393 | the table. See the commentary on symtab.h before the | |
2394 | definition of struct linetable. */ | |
2395 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
2396 | return item->pc; | |
2397 | } | |
2398 | ||
2399 | return func_addr; | |
2400 | } | |
2401 | ||
c906108c SS |
2402 | /* Given a function symbol SYM, find the symtab and line for the start |
2403 | of the function. | |
2404 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
2405 | of real code inside the function. */ | |
2406 | ||
50641945 | 2407 | struct symtab_and_line |
fba45db2 | 2408 | find_function_start_sal (struct symbol *sym, int funfirstline) |
c906108c | 2409 | { |
059acae7 UW |
2410 | struct symtab_and_line sal; |
2411 | ||
2412 | fixup_symbol_section (sym, NULL); | |
2413 | sal = find_pc_sect_line (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), | |
2414 | SYMBOL_OBJ_SECTION (sym), 0); | |
2415 | ||
86da934b UW |
2416 | /* We always should have a line for the function start address. |
2417 | If we don't, something is odd. Create a plain SAL refering | |
2418 | just the PC and hope that skip_prologue_sal (if requested) | |
2419 | can find a line number for after the prologue. */ | |
2420 | if (sal.pc < BLOCK_START (SYMBOL_BLOCK_VALUE (sym))) | |
2421 | { | |
2422 | init_sal (&sal); | |
2423 | sal.pspace = current_program_space; | |
2424 | sal.pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2425 | sal.section = SYMBOL_OBJ_SECTION (sym); | |
2426 | } | |
2427 | ||
059acae7 UW |
2428 | if (funfirstline) |
2429 | skip_prologue_sal (&sal); | |
bccdca4a | 2430 | |
059acae7 UW |
2431 | return sal; |
2432 | } | |
2433 | ||
2434 | /* Adjust SAL to the first instruction past the function prologue. | |
2435 | If the PC was explicitly specified, the SAL is not changed. | |
2436 | If the line number was explicitly specified, at most the SAL's PC | |
2437 | is updated. If SAL is already past the prologue, then do nothing. */ | |
2438 | void | |
2439 | skip_prologue_sal (struct symtab_and_line *sal) | |
2440 | { | |
2441 | struct symbol *sym; | |
2442 | struct symtab_and_line start_sal; | |
2443 | struct cleanup *old_chain; | |
c906108c | 2444 | CORE_ADDR pc; |
059acae7 UW |
2445 | struct obj_section *section; |
2446 | const char *name; | |
2447 | struct objfile *objfile; | |
2448 | struct gdbarch *gdbarch; | |
edb3359d | 2449 | struct block *b, *function_block; |
c906108c | 2450 | |
059acae7 UW |
2451 | /* Do not change the SAL is PC was specified explicitly. */ |
2452 | if (sal->explicit_pc) | |
2453 | return; | |
6c95b8df PA |
2454 | |
2455 | old_chain = save_current_space_and_thread (); | |
059acae7 | 2456 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 2457 | |
059acae7 UW |
2458 | sym = find_pc_sect_function (sal->pc, sal->section); |
2459 | if (sym != NULL) | |
bccdca4a | 2460 | { |
059acae7 UW |
2461 | fixup_symbol_section (sym, NULL); |
2462 | ||
2463 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2464 | section = SYMBOL_OBJ_SECTION (sym); | |
2465 | name = SYMBOL_LINKAGE_NAME (sym); | |
2466 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
c906108c | 2467 | } |
059acae7 UW |
2468 | else |
2469 | { | |
2470 | struct minimal_symbol *msymbol | |
2471 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); | |
433759f7 | 2472 | |
059acae7 UW |
2473 | if (msymbol == NULL) |
2474 | { | |
2475 | do_cleanups (old_chain); | |
2476 | return; | |
2477 | } | |
2478 | ||
2479 | pc = SYMBOL_VALUE_ADDRESS (msymbol); | |
2480 | section = SYMBOL_OBJ_SECTION (msymbol); | |
2481 | name = SYMBOL_LINKAGE_NAME (msymbol); | |
2482 | objfile = msymbol_objfile (msymbol); | |
2483 | } | |
2484 | ||
2485 | gdbarch = get_objfile_arch (objfile); | |
2486 | ||
2487 | /* If the function is in an unmapped overlay, use its unmapped LMA address, | |
2488 | so that gdbarch_skip_prologue has something unique to work on. */ | |
2489 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
2490 | pc = overlay_unmapped_address (pc, section); | |
2491 | ||
2492 | /* Skip "first line" of function (which is actually its prologue). */ | |
2493 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
2494 | pc = gdbarch_skip_prologue (gdbarch, pc); | |
2495 | ||
2496 | /* For overlays, map pc back into its mapped VMA range. */ | |
2497 | pc = overlay_mapped_address (pc, section); | |
2498 | ||
2499 | /* Calculate line number. */ | |
2500 | start_sal = find_pc_sect_line (pc, section, 0); | |
c906108c | 2501 | |
a433963d | 2502 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next |
c906108c | 2503 | line is still part of the same function. */ |
059acae7 UW |
2504 | if (start_sal.pc != pc |
2505 | && (sym? (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end | |
2506 | && start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
2507 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section) | |
2508 | == lookup_minimal_symbol_by_pc_section (pc, section)))) | |
c906108c SS |
2509 | { |
2510 | /* First pc of next line */ | |
059acae7 | 2511 | pc = start_sal.end; |
c906108c | 2512 | /* Recalculate the line number (might not be N+1). */ |
059acae7 | 2513 | start_sal = find_pc_sect_line (pc, section, 0); |
c906108c | 2514 | } |
4309257c PM |
2515 | |
2516 | /* On targets with executable formats that don't have a concept of | |
2517 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
2518 | to `__main' in `main' between the prologue and before user | |
2519 | code. */ | |
059acae7 UW |
2520 | if (gdbarch_skip_main_prologue_p (gdbarch) |
2521 | && name && strcmp (name, "main") == 0) | |
4309257c | 2522 | { |
d80b854b | 2523 | pc = gdbarch_skip_main_prologue (gdbarch, pc); |
4309257c | 2524 | /* Recalculate the line number (might not be N+1). */ |
059acae7 | 2525 | start_sal = find_pc_sect_line (pc, section, 0); |
4309257c PM |
2526 | } |
2527 | ||
8c7a1ee8 EZ |
2528 | /* If we still don't have a valid source line, try to find the first |
2529 | PC in the lineinfo table that belongs to the same function. This | |
2530 | happens with COFF debug info, which does not seem to have an | |
2531 | entry in lineinfo table for the code after the prologue which has | |
2532 | no direct relation to source. For example, this was found to be | |
2533 | the case with the DJGPP target using "gcc -gcoff" when the | |
2534 | compiler inserted code after the prologue to make sure the stack | |
2535 | is aligned. */ | |
059acae7 | 2536 | if (sym && start_sal.symtab == NULL) |
8c7a1ee8 EZ |
2537 | { |
2538 | pc = skip_prologue_using_lineinfo (pc, SYMBOL_SYMTAB (sym)); | |
2539 | /* Recalculate the line number. */ | |
059acae7 | 2540 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
2541 | } |
2542 | ||
059acae7 UW |
2543 | do_cleanups (old_chain); |
2544 | ||
2545 | /* If we're already past the prologue, leave SAL unchanged. Otherwise | |
2546 | forward SAL to the end of the prologue. */ | |
2547 | if (sal->pc >= pc) | |
2548 | return; | |
2549 | ||
2550 | sal->pc = pc; | |
2551 | sal->section = section; | |
2552 | ||
2553 | /* Unless the explicit_line flag was set, update the SAL line | |
2554 | and symtab to correspond to the modified PC location. */ | |
2555 | if (sal->explicit_line) | |
2556 | return; | |
2557 | ||
2558 | sal->symtab = start_sal.symtab; | |
2559 | sal->line = start_sal.line; | |
2560 | sal->end = start_sal.end; | |
c906108c | 2561 | |
edb3359d DJ |
2562 | /* Check if we are now inside an inlined function. If we can, |
2563 | use the call site of the function instead. */ | |
059acae7 | 2564 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
2565 | function_block = NULL; |
2566 | while (b != NULL) | |
2567 | { | |
2568 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
2569 | function_block = b; | |
2570 | else if (BLOCK_FUNCTION (b) != NULL) | |
2571 | break; | |
2572 | b = BLOCK_SUPERBLOCK (b); | |
2573 | } | |
2574 | if (function_block != NULL | |
2575 | && SYMBOL_LINE (BLOCK_FUNCTION (function_block)) != 0) | |
2576 | { | |
059acae7 UW |
2577 | sal->line = SYMBOL_LINE (BLOCK_FUNCTION (function_block)); |
2578 | sal->symtab = SYMBOL_SYMTAB (BLOCK_FUNCTION (function_block)); | |
edb3359d | 2579 | } |
c906108c | 2580 | } |
50641945 | 2581 | |
c906108c SS |
2582 | /* If P is of the form "operator[ \t]+..." where `...' is |
2583 | some legitimate operator text, return a pointer to the | |
2584 | beginning of the substring of the operator text. | |
2585 | Otherwise, return "". */ | |
2586 | char * | |
fba45db2 | 2587 | operator_chars (char *p, char **end) |
c906108c SS |
2588 | { |
2589 | *end = ""; | |
2590 | if (strncmp (p, "operator", 8)) | |
2591 | return *end; | |
2592 | p += 8; | |
2593 | ||
2594 | /* Don't get faked out by `operator' being part of a longer | |
2595 | identifier. */ | |
c5aa993b | 2596 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
2597 | return *end; |
2598 | ||
2599 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
2600 | while (*p == ' ' || *p == '\t') | |
2601 | p++; | |
2602 | ||
c378eb4e | 2603 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 2604 | |
c5aa993b | 2605 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 2606 | { |
aa1ee363 | 2607 | char *q = p + 1; |
433759f7 | 2608 | |
c5aa993b | 2609 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
2610 | q++; |
2611 | *end = q; | |
2612 | return p; | |
2613 | } | |
2614 | ||
53e8ad3d MS |
2615 | while (*p) |
2616 | switch (*p) | |
2617 | { | |
2618 | case '\\': /* regexp quoting */ | |
2619 | if (p[1] == '*') | |
2620 | { | |
3e43a32a | 2621 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
2622 | *end = p + 3; |
2623 | else /* 'operator\*' */ | |
2624 | *end = p + 2; | |
2625 | return p; | |
2626 | } | |
2627 | else if (p[1] == '[') | |
2628 | { | |
2629 | if (p[2] == ']') | |
3e43a32a MS |
2630 | error (_("mismatched quoting on brackets, " |
2631 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
2632 | else if (p[2] == '\\' && p[3] == ']') |
2633 | { | |
2634 | *end = p + 4; /* 'operator\[\]' */ | |
2635 | return p; | |
2636 | } | |
2637 | else | |
8a3fe4f8 | 2638 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 2639 | } |
9af17804 | 2640 | else |
53e8ad3d | 2641 | { |
c378eb4e | 2642 | /* Gratuitous qoute: skip it and move on. */ |
53e8ad3d MS |
2643 | p++; |
2644 | continue; | |
2645 | } | |
2646 | break; | |
2647 | case '!': | |
2648 | case '=': | |
2649 | case '*': | |
2650 | case '/': | |
2651 | case '%': | |
2652 | case '^': | |
2653 | if (p[1] == '=') | |
2654 | *end = p + 2; | |
2655 | else | |
2656 | *end = p + 1; | |
2657 | return p; | |
2658 | case '<': | |
2659 | case '>': | |
2660 | case '+': | |
2661 | case '-': | |
2662 | case '&': | |
2663 | case '|': | |
2664 | if (p[0] == '-' && p[1] == '>') | |
2665 | { | |
c378eb4e | 2666 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
2667 | if (p[2] == '*') |
2668 | { | |
2669 | *end = p + 3; /* 'operator->*' */ | |
2670 | return p; | |
2671 | } | |
2672 | else if (p[2] == '\\') | |
2673 | { | |
2674 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
2675 | return p; | |
2676 | } | |
2677 | else | |
2678 | { | |
2679 | *end = p + 2; /* 'operator->' */ | |
2680 | return p; | |
2681 | } | |
2682 | } | |
2683 | if (p[1] == '=' || p[1] == p[0]) | |
2684 | *end = p + 2; | |
2685 | else | |
2686 | *end = p + 1; | |
2687 | return p; | |
2688 | case '~': | |
2689 | case ',': | |
c5aa993b | 2690 | *end = p + 1; |
53e8ad3d MS |
2691 | return p; |
2692 | case '(': | |
2693 | if (p[1] != ')') | |
3e43a32a MS |
2694 | error (_("`operator ()' must be specified " |
2695 | "without whitespace in `()'")); | |
c5aa993b | 2696 | *end = p + 2; |
53e8ad3d MS |
2697 | return p; |
2698 | case '?': | |
2699 | if (p[1] != ':') | |
3e43a32a MS |
2700 | error (_("`operator ?:' must be specified " |
2701 | "without whitespace in `?:'")); | |
53e8ad3d MS |
2702 | *end = p + 2; |
2703 | return p; | |
2704 | case '[': | |
2705 | if (p[1] != ']') | |
3e43a32a MS |
2706 | error (_("`operator []' must be specified " |
2707 | "without whitespace in `[]'")); | |
53e8ad3d MS |
2708 | *end = p + 2; |
2709 | return p; | |
2710 | default: | |
8a3fe4f8 | 2711 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
2712 | break; |
2713 | } | |
2714 | ||
c906108c SS |
2715 | *end = ""; |
2716 | return *end; | |
2717 | } | |
c906108c | 2718 | \f |
c5aa993b | 2719 | |
c94fdfd0 EZ |
2720 | /* If FILE is not already in the table of files, return zero; |
2721 | otherwise return non-zero. Optionally add FILE to the table if ADD | |
2722 | is non-zero. If *FIRST is non-zero, forget the old table | |
2723 | contents. */ | |
2724 | static int | |
2725 | filename_seen (const char *file, int add, int *first) | |
c906108c | 2726 | { |
c94fdfd0 EZ |
2727 | /* Table of files seen so far. */ |
2728 | static const char **tab = NULL; | |
c906108c SS |
2729 | /* Allocated size of tab in elements. |
2730 | Start with one 256-byte block (when using GNU malloc.c). | |
2731 | 24 is the malloc overhead when range checking is in effect. */ | |
2732 | static int tab_alloc_size = (256 - 24) / sizeof (char *); | |
2733 | /* Current size of tab in elements. */ | |
2734 | static int tab_cur_size; | |
c94fdfd0 | 2735 | const char **p; |
c906108c SS |
2736 | |
2737 | if (*first) | |
2738 | { | |
2739 | if (tab == NULL) | |
c94fdfd0 | 2740 | tab = (const char **) xmalloc (tab_alloc_size * sizeof (*tab)); |
c906108c SS |
2741 | tab_cur_size = 0; |
2742 | } | |
2743 | ||
c94fdfd0 | 2744 | /* Is FILE in tab? */ |
c906108c | 2745 | for (p = tab; p < tab + tab_cur_size; p++) |
0ba1096a | 2746 | if (filename_cmp (*p, file) == 0) |
c94fdfd0 EZ |
2747 | return 1; |
2748 | ||
2749 | /* No; maybe add it to tab. */ | |
2750 | if (add) | |
c906108c | 2751 | { |
c94fdfd0 EZ |
2752 | if (tab_cur_size == tab_alloc_size) |
2753 | { | |
2754 | tab_alloc_size *= 2; | |
2755 | tab = (const char **) xrealloc ((char *) tab, | |
2756 | tab_alloc_size * sizeof (*tab)); | |
2757 | } | |
2758 | tab[tab_cur_size++] = file; | |
c906108c | 2759 | } |
c906108c | 2760 | |
c94fdfd0 EZ |
2761 | return 0; |
2762 | } | |
2763 | ||
2764 | /* Slave routine for sources_info. Force line breaks at ,'s. | |
2765 | NAME is the name to print and *FIRST is nonzero if this is the first | |
2766 | name printed. Set *FIRST to zero. */ | |
2767 | static void | |
d092d1a2 | 2768 | output_source_filename (const char *name, int *first) |
c94fdfd0 EZ |
2769 | { |
2770 | /* Since a single source file can result in several partial symbol | |
2771 | tables, we need to avoid printing it more than once. Note: if | |
2772 | some of the psymtabs are read in and some are not, it gets | |
2773 | printed both under "Source files for which symbols have been | |
2774 | read" and "Source files for which symbols will be read in on | |
2775 | demand". I consider this a reasonable way to deal with the | |
2776 | situation. I'm not sure whether this can also happen for | |
2777 | symtabs; it doesn't hurt to check. */ | |
2778 | ||
2779 | /* Was NAME already seen? */ | |
2780 | if (filename_seen (name, 1, first)) | |
2781 | { | |
2782 | /* Yes; don't print it again. */ | |
2783 | return; | |
2784 | } | |
2785 | /* No; print it and reset *FIRST. */ | |
c906108c SS |
2786 | if (*first) |
2787 | { | |
2788 | *first = 0; | |
2789 | } | |
2790 | else | |
2791 | { | |
2792 | printf_filtered (", "); | |
2793 | } | |
2794 | ||
2795 | wrap_here (""); | |
2796 | fputs_filtered (name, gdb_stdout); | |
c5aa993b | 2797 | } |
c906108c | 2798 | |
ccefe4c4 TT |
2799 | /* A callback for map_partial_symbol_filenames. */ |
2800 | static void | |
2801 | output_partial_symbol_filename (const char *fullname, const char *filename, | |
2802 | void *data) | |
2803 | { | |
2804 | output_source_filename (fullname ? fullname : filename, data); | |
2805 | } | |
2806 | ||
c906108c | 2807 | static void |
fba45db2 | 2808 | sources_info (char *ignore, int from_tty) |
c906108c | 2809 | { |
52f0bd74 | 2810 | struct symtab *s; |
52f0bd74 | 2811 | struct objfile *objfile; |
c906108c | 2812 | int first; |
c5aa993b | 2813 | |
c906108c SS |
2814 | if (!have_full_symbols () && !have_partial_symbols ()) |
2815 | { | |
8a3fe4f8 | 2816 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
c906108c | 2817 | } |
c5aa993b | 2818 | |
c906108c SS |
2819 | printf_filtered ("Source files for which symbols have been read in:\n\n"); |
2820 | ||
2821 | first = 1; | |
2822 | ALL_SYMTABS (objfile, s) | |
c5aa993b | 2823 | { |
d092d1a2 | 2824 | const char *fullname = symtab_to_fullname (s); |
433759f7 | 2825 | |
d092d1a2 | 2826 | output_source_filename (fullname ? fullname : s->filename, &first); |
c5aa993b | 2827 | } |
c906108c | 2828 | printf_filtered ("\n\n"); |
c5aa993b | 2829 | |
3e43a32a MS |
2830 | printf_filtered ("Source files for which symbols " |
2831 | "will be read in on demand:\n\n"); | |
c906108c SS |
2832 | |
2833 | first = 1; | |
ccefe4c4 | 2834 | map_partial_symbol_filenames (output_partial_symbol_filename, &first); |
c906108c SS |
2835 | printf_filtered ("\n"); |
2836 | } | |
2837 | ||
2838 | static int | |
ccefe4c4 | 2839 | file_matches (const char *file, char *files[], int nfiles) |
c906108c SS |
2840 | { |
2841 | int i; | |
2842 | ||
2843 | if (file != NULL && nfiles != 0) | |
2844 | { | |
2845 | for (i = 0; i < nfiles; i++) | |
c5aa993b | 2846 | { |
0ba1096a | 2847 | if (filename_cmp (files[i], lbasename (file)) == 0) |
c5aa993b JM |
2848 | return 1; |
2849 | } | |
c906108c SS |
2850 | } |
2851 | else if (nfiles == 0) | |
2852 | return 1; | |
2853 | return 0; | |
2854 | } | |
2855 | ||
c378eb4e | 2856 | /* Free any memory associated with a search. */ |
c906108c | 2857 | void |
fba45db2 | 2858 | free_search_symbols (struct symbol_search *symbols) |
c906108c SS |
2859 | { |
2860 | struct symbol_search *p; | |
2861 | struct symbol_search *next; | |
2862 | ||
2863 | for (p = symbols; p != NULL; p = next) | |
2864 | { | |
2865 | next = p->next; | |
b8c9b27d | 2866 | xfree (p); |
c906108c SS |
2867 | } |
2868 | } | |
2869 | ||
5bd98722 AC |
2870 | static void |
2871 | do_free_search_symbols_cleanup (void *symbols) | |
2872 | { | |
2873 | free_search_symbols (symbols); | |
2874 | } | |
2875 | ||
2876 | struct cleanup * | |
2877 | make_cleanup_free_search_symbols (struct symbol_search *symbols) | |
2878 | { | |
2879 | return make_cleanup (do_free_search_symbols_cleanup, symbols); | |
2880 | } | |
2881 | ||
434d2d4f DJ |
2882 | /* Helper function for sort_search_symbols and qsort. Can only |
2883 | sort symbols, not minimal symbols. */ | |
2884 | static int | |
2885 | compare_search_syms (const void *sa, const void *sb) | |
2886 | { | |
2887 | struct symbol_search **sym_a = (struct symbol_search **) sa; | |
2888 | struct symbol_search **sym_b = (struct symbol_search **) sb; | |
2889 | ||
de5ad195 DC |
2890 | return strcmp (SYMBOL_PRINT_NAME ((*sym_a)->symbol), |
2891 | SYMBOL_PRINT_NAME ((*sym_b)->symbol)); | |
434d2d4f DJ |
2892 | } |
2893 | ||
2894 | /* Sort the ``nfound'' symbols in the list after prevtail. Leave | |
2895 | prevtail where it is, but update its next pointer to point to | |
2896 | the first of the sorted symbols. */ | |
2897 | static struct symbol_search * | |
2898 | sort_search_symbols (struct symbol_search *prevtail, int nfound) | |
2899 | { | |
2900 | struct symbol_search **symbols, *symp, *old_next; | |
2901 | int i; | |
2902 | ||
2903 | symbols = (struct symbol_search **) xmalloc (sizeof (struct symbol_search *) | |
2904 | * nfound); | |
2905 | symp = prevtail->next; | |
2906 | for (i = 0; i < nfound; i++) | |
2907 | { | |
2908 | symbols[i] = symp; | |
2909 | symp = symp->next; | |
2910 | } | |
2911 | /* Generally NULL. */ | |
2912 | old_next = symp; | |
2913 | ||
2914 | qsort (symbols, nfound, sizeof (struct symbol_search *), | |
2915 | compare_search_syms); | |
2916 | ||
2917 | symp = prevtail; | |
2918 | for (i = 0; i < nfound; i++) | |
2919 | { | |
2920 | symp->next = symbols[i]; | |
2921 | symp = symp->next; | |
2922 | } | |
2923 | symp->next = old_next; | |
2924 | ||
8ed32cc0 | 2925 | xfree (symbols); |
434d2d4f DJ |
2926 | return symp; |
2927 | } | |
5bd98722 | 2928 | |
ccefe4c4 TT |
2929 | /* An object of this type is passed as the user_data to the |
2930 | expand_symtabs_matching method. */ | |
2931 | struct search_symbols_data | |
2932 | { | |
2933 | int nfiles; | |
2934 | char **files; | |
681bf369 JK |
2935 | |
2936 | /* It is true if PREG contains valid data, false otherwise. */ | |
2937 | unsigned preg_p : 1; | |
2938 | regex_t preg; | |
ccefe4c4 TT |
2939 | }; |
2940 | ||
2941 | /* A callback for expand_symtabs_matching. */ | |
2942 | static int | |
2943 | search_symbols_file_matches (const char *filename, void *user_data) | |
2944 | { | |
2945 | struct search_symbols_data *data = user_data; | |
433759f7 | 2946 | |
ccefe4c4 TT |
2947 | return file_matches (filename, data->files, data->nfiles); |
2948 | } | |
2949 | ||
2950 | /* A callback for expand_symtabs_matching. */ | |
2951 | static int | |
2952 | search_symbols_name_matches (const char *symname, void *user_data) | |
2953 | { | |
2954 | struct search_symbols_data *data = user_data; | |
433759f7 | 2955 | |
681bf369 | 2956 | return !data->preg_p || regexec (&data->preg, symname, 0, NULL, 0) == 0; |
ccefe4c4 TT |
2957 | } |
2958 | ||
c906108c SS |
2959 | /* Search the symbol table for matches to the regular expression REGEXP, |
2960 | returning the results in *MATCHES. | |
2961 | ||
2962 | Only symbols of KIND are searched: | |
e8930875 JK |
2963 | VARIABLES_DOMAIN - search all symbols, excluding functions, type names, |
2964 | and constants (enums) | |
176620f1 EZ |
2965 | FUNCTIONS_DOMAIN - search all functions |
2966 | TYPES_DOMAIN - search all type names | |
7b08b9eb | 2967 | ALL_DOMAIN - an internal error for this function |
c906108c SS |
2968 | |
2969 | free_search_symbols should be called when *MATCHES is no longer needed. | |
434d2d4f DJ |
2970 | |
2971 | The results are sorted locally; each symtab's global and static blocks are | |
c378eb4e MS |
2972 | separately alphabetized. */ |
2973 | ||
c906108c | 2974 | void |
8903c50d TT |
2975 | search_symbols (char *regexp, enum search_domain kind, |
2976 | int nfiles, char *files[], | |
fd118b61 | 2977 | struct symbol_search **matches) |
c906108c | 2978 | { |
52f0bd74 | 2979 | struct symtab *s; |
52f0bd74 | 2980 | struct blockvector *bv; |
52f0bd74 AC |
2981 | struct block *b; |
2982 | int i = 0; | |
de4f826b | 2983 | struct dict_iterator iter; |
52f0bd74 | 2984 | struct symbol *sym; |
c906108c SS |
2985 | struct objfile *objfile; |
2986 | struct minimal_symbol *msymbol; | |
2987 | char *val; | |
2988 | int found_misc = 0; | |
bc043ef3 | 2989 | static const enum minimal_symbol_type types[] |
e8930875 | 2990 | = {mst_data, mst_text, mst_abs}; |
bc043ef3 | 2991 | static const enum minimal_symbol_type types2[] |
e8930875 | 2992 | = {mst_bss, mst_file_text, mst_abs}; |
bc043ef3 | 2993 | static const enum minimal_symbol_type types3[] |
e8930875 | 2994 | = {mst_file_data, mst_solib_trampoline, mst_abs}; |
bc043ef3 | 2995 | static const enum minimal_symbol_type types4[] |
e8930875 | 2996 | = {mst_file_bss, mst_text_gnu_ifunc, mst_abs}; |
c906108c SS |
2997 | enum minimal_symbol_type ourtype; |
2998 | enum minimal_symbol_type ourtype2; | |
2999 | enum minimal_symbol_type ourtype3; | |
3000 | enum minimal_symbol_type ourtype4; | |
3001 | struct symbol_search *sr; | |
3002 | struct symbol_search *psr; | |
3003 | struct symbol_search *tail; | |
ccefe4c4 | 3004 | struct search_symbols_data datum; |
c906108c | 3005 | |
681bf369 JK |
3006 | /* OLD_CHAIN .. RETVAL_CHAIN is always freed, RETVAL_CHAIN .. current |
3007 | CLEANUP_CHAIN is freed only in the case of an error. */ | |
3008 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); | |
3009 | struct cleanup *retval_chain; | |
3010 | ||
e8930875 JK |
3011 | gdb_assert (kind <= TYPES_DOMAIN); |
3012 | ||
8903c50d TT |
3013 | ourtype = types[kind]; |
3014 | ourtype2 = types2[kind]; | |
3015 | ourtype3 = types3[kind]; | |
3016 | ourtype4 = types4[kind]; | |
c906108c SS |
3017 | |
3018 | sr = *matches = NULL; | |
3019 | tail = NULL; | |
681bf369 | 3020 | datum.preg_p = 0; |
c906108c SS |
3021 | |
3022 | if (regexp != NULL) | |
3023 | { | |
3024 | /* Make sure spacing is right for C++ operators. | |
3025 | This is just a courtesy to make the matching less sensitive | |
3026 | to how many spaces the user leaves between 'operator' | |
c378eb4e | 3027 | and <TYPENAME> or <OPERATOR>. */ |
c906108c SS |
3028 | char *opend; |
3029 | char *opname = operator_chars (regexp, &opend); | |
681bf369 | 3030 | int errcode; |
433759f7 | 3031 | |
c906108c | 3032 | if (*opname) |
c5aa993b | 3033 | { |
3e43a32a MS |
3034 | int fix = -1; /* -1 means ok; otherwise number of |
3035 | spaces needed. */ | |
433759f7 | 3036 | |
c5aa993b JM |
3037 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
3038 | { | |
c378eb4e | 3039 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
3040 | if (opname[-1] != ' ' || opname[-2] == ' ') |
3041 | fix = 1; | |
3042 | } | |
3043 | else | |
3044 | { | |
c378eb4e | 3045 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
3046 | if (opname[-1] == ' ') |
3047 | fix = 0; | |
3048 | } | |
c378eb4e | 3049 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
3050 | if (fix >= 0) |
3051 | { | |
045f55a6 | 3052 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 3053 | |
c5aa993b JM |
3054 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
3055 | regexp = tmp; | |
3056 | } | |
3057 | } | |
3058 | ||
559a7a62 JK |
3059 | errcode = regcomp (&datum.preg, regexp, |
3060 | REG_NOSUB | (case_sensitivity == case_sensitive_off | |
3061 | ? REG_ICASE : 0)); | |
681bf369 JK |
3062 | if (errcode != 0) |
3063 | { | |
3064 | char *err = get_regcomp_error (errcode, &datum.preg); | |
3065 | ||
3066 | make_cleanup (xfree, err); | |
3067 | error (_("Invalid regexp (%s): %s"), err, regexp); | |
3068 | } | |
3069 | datum.preg_p = 1; | |
3070 | make_regfree_cleanup (&datum.preg); | |
c906108c SS |
3071 | } |
3072 | ||
3073 | /* Search through the partial symtabs *first* for all symbols | |
3074 | matching the regexp. That way we don't have to reproduce all of | |
c378eb4e | 3075 | the machinery below. */ |
c906108c | 3076 | |
ccefe4c4 TT |
3077 | datum.nfiles = nfiles; |
3078 | datum.files = files; | |
ccefe4c4 | 3079 | ALL_OBJFILES (objfile) |
c5aa993b | 3080 | { |
ccefe4c4 TT |
3081 | if (objfile->sf) |
3082 | objfile->sf->qf->expand_symtabs_matching (objfile, | |
3083 | search_symbols_file_matches, | |
3084 | search_symbols_name_matches, | |
3085 | kind, | |
3086 | &datum); | |
c5aa993b | 3087 | } |
c906108c | 3088 | |
681bf369 JK |
3089 | retval_chain = old_chain; |
3090 | ||
c906108c SS |
3091 | /* Here, we search through the minimal symbol tables for functions |
3092 | and variables that match, and force their symbols to be read. | |
3093 | This is in particular necessary for demangled variable names, | |
3094 | which are no longer put into the partial symbol tables. | |
3095 | The symbol will then be found during the scan of symtabs below. | |
3096 | ||
3097 | For functions, find_pc_symtab should succeed if we have debug info | |
3098 | for the function, for variables we have to call lookup_symbol | |
3099 | to determine if the variable has debug info. | |
3100 | If the lookup fails, set found_misc so that we will rescan to print | |
c378eb4e | 3101 | any matching symbols without debug info. */ |
c906108c | 3102 | |
176620f1 | 3103 | if (nfiles == 0 && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) |
c906108c SS |
3104 | { |
3105 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3106 | { |
89295b4d PP |
3107 | QUIT; |
3108 | ||
c5aa993b JM |
3109 | if (MSYMBOL_TYPE (msymbol) == ourtype || |
3110 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
3111 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
3112 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
3113 | { | |
681bf369 JK |
3114 | if (!datum.preg_p |
3115 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (msymbol), 0, | |
3116 | NULL, 0) == 0) | |
c5aa993b JM |
3117 | { |
3118 | if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))) | |
3119 | { | |
b1262a02 DC |
3120 | /* FIXME: carlton/2003-02-04: Given that the |
3121 | semantics of lookup_symbol keeps on changing | |
3122 | slightly, it would be a nice idea if we had a | |
3123 | function lookup_symbol_minsym that found the | |
3124 | symbol associated to a given minimal symbol (if | |
3125 | any). */ | |
176620f1 | 3126 | if (kind == FUNCTIONS_DOMAIN |
2335f48e | 3127 | || lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), |
b1262a02 | 3128 | (struct block *) NULL, |
2570f2b7 | 3129 | VAR_DOMAIN, 0) |
53c5240f | 3130 | == NULL) |
b1262a02 | 3131 | found_misc = 1; |
c5aa993b JM |
3132 | } |
3133 | } | |
3134 | } | |
3135 | } | |
c906108c SS |
3136 | } |
3137 | ||
11309657 | 3138 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3139 | { |
3140 | bv = BLOCKVECTOR (s); | |
c5aa993b JM |
3141 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
3142 | { | |
434d2d4f DJ |
3143 | struct symbol_search *prevtail = tail; |
3144 | int nfound = 0; | |
433759f7 | 3145 | |
c5aa993b | 3146 | b = BLOCKVECTOR_BLOCK (bv, i); |
de4f826b | 3147 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 3148 | { |
cb1df416 | 3149 | struct symtab *real_symtab = SYMBOL_SYMTAB (sym); |
433759f7 | 3150 | |
c5aa993b | 3151 | QUIT; |
cb1df416 DJ |
3152 | |
3153 | if (file_matches (real_symtab->filename, files, nfiles) | |
681bf369 JK |
3154 | && ((!datum.preg_p |
3155 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (sym), 0, | |
3156 | NULL, 0) == 0) | |
254e6b9e DE |
3157 | && ((kind == VARIABLES_DOMAIN |
3158 | && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
0fe7935b | 3159 | && SYMBOL_CLASS (sym) != LOC_UNRESOLVED |
c5aa993b | 3160 | && SYMBOL_CLASS (sym) != LOC_BLOCK |
254e6b9e DE |
3161 | /* LOC_CONST can be used for more than just enums, |
3162 | e.g., c++ static const members. | |
3163 | We only want to skip enums here. */ | |
3164 | && !(SYMBOL_CLASS (sym) == LOC_CONST | |
3e43a32a MS |
3165 | && TYPE_CODE (SYMBOL_TYPE (sym)) |
3166 | == TYPE_CODE_ENUM)) | |
3167 | || (kind == FUNCTIONS_DOMAIN | |
3168 | && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
3169 | || (kind == TYPES_DOMAIN | |
3170 | && SYMBOL_CLASS (sym) == LOC_TYPEDEF)))) | |
c5aa993b JM |
3171 | { |
3172 | /* match */ | |
3e43a32a MS |
3173 | psr = (struct symbol_search *) |
3174 | xmalloc (sizeof (struct symbol_search)); | |
c5aa993b | 3175 | psr->block = i; |
cb1df416 | 3176 | psr->symtab = real_symtab; |
c5aa993b JM |
3177 | psr->symbol = sym; |
3178 | psr->msymbol = NULL; | |
3179 | psr->next = NULL; | |
3180 | if (tail == NULL) | |
434d2d4f | 3181 | sr = psr; |
c5aa993b JM |
3182 | else |
3183 | tail->next = psr; | |
3184 | tail = psr; | |
434d2d4f DJ |
3185 | nfound ++; |
3186 | } | |
3187 | } | |
3188 | if (nfound > 0) | |
3189 | { | |
3190 | if (prevtail == NULL) | |
3191 | { | |
3192 | struct symbol_search dummy; | |
3193 | ||
3194 | dummy.next = sr; | |
3195 | tail = sort_search_symbols (&dummy, nfound); | |
3196 | sr = dummy.next; | |
3197 | ||
681bf369 | 3198 | make_cleanup_free_search_symbols (sr); |
c5aa993b | 3199 | } |
434d2d4f DJ |
3200 | else |
3201 | tail = sort_search_symbols (prevtail, nfound); | |
c5aa993b JM |
3202 | } |
3203 | } | |
c5aa993b | 3204 | } |
c906108c SS |
3205 | |
3206 | /* If there are no eyes, avoid all contact. I mean, if there are | |
3207 | no debug symbols, then print directly from the msymbol_vector. */ | |
3208 | ||
176620f1 | 3209 | if (found_misc || kind != FUNCTIONS_DOMAIN) |
c906108c SS |
3210 | { |
3211 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3212 | { |
89295b4d PP |
3213 | QUIT; |
3214 | ||
c5aa993b JM |
3215 | if (MSYMBOL_TYPE (msymbol) == ourtype || |
3216 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
3217 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
3218 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
3219 | { | |
681bf369 JK |
3220 | if (!datum.preg_p |
3221 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (msymbol), 0, | |
3222 | NULL, 0) == 0) | |
c5aa993b | 3223 | { |
c378eb4e | 3224 | /* Functions: Look up by address. */ |
176620f1 | 3225 | if (kind != FUNCTIONS_DOMAIN || |
c5aa993b JM |
3226 | (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))) |
3227 | { | |
c378eb4e | 3228 | /* Variables/Absolutes: Look up by name. */ |
2335f48e | 3229 | if (lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), |
2570f2b7 UW |
3230 | (struct block *) NULL, VAR_DOMAIN, 0) |
3231 | == NULL) | |
c5aa993b JM |
3232 | { |
3233 | /* match */ | |
3e43a32a MS |
3234 | psr = (struct symbol_search *) |
3235 | xmalloc (sizeof (struct symbol_search)); | |
c5aa993b JM |
3236 | psr->block = i; |
3237 | psr->msymbol = msymbol; | |
3238 | psr->symtab = NULL; | |
3239 | psr->symbol = NULL; | |
3240 | psr->next = NULL; | |
3241 | if (tail == NULL) | |
3242 | { | |
3243 | sr = psr; | |
681bf369 | 3244 | make_cleanup_free_search_symbols (sr); |
c5aa993b JM |
3245 | } |
3246 | else | |
3247 | tail->next = psr; | |
3248 | tail = psr; | |
3249 | } | |
3250 | } | |
3251 | } | |
3252 | } | |
3253 | } | |
c906108c SS |
3254 | } |
3255 | ||
681bf369 JK |
3256 | discard_cleanups (retval_chain); |
3257 | do_cleanups (old_chain); | |
c906108c | 3258 | *matches = sr; |
c906108c SS |
3259 | } |
3260 | ||
3261 | /* Helper function for symtab_symbol_info, this function uses | |
3262 | the data returned from search_symbols() to print information | |
c378eb4e MS |
3263 | regarding the match to gdb_stdout. */ |
3264 | ||
c906108c | 3265 | static void |
8903c50d TT |
3266 | print_symbol_info (enum search_domain kind, |
3267 | struct symtab *s, struct symbol *sym, | |
fba45db2 | 3268 | int block, char *last) |
c906108c | 3269 | { |
0ba1096a | 3270 | if (last == NULL || filename_cmp (last, s->filename) != 0) |
c906108c SS |
3271 | { |
3272 | fputs_filtered ("\nFile ", gdb_stdout); | |
3273 | fputs_filtered (s->filename, gdb_stdout); | |
3274 | fputs_filtered (":\n", gdb_stdout); | |
3275 | } | |
3276 | ||
176620f1 | 3277 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
c906108c | 3278 | printf_filtered ("static "); |
c5aa993b | 3279 | |
c378eb4e | 3280 | /* Typedef that is not a C++ class. */ |
176620f1 EZ |
3281 | if (kind == TYPES_DOMAIN |
3282 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
a5238fbc | 3283 | typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout); |
c378eb4e | 3284 | /* variable, func, or typedef-that-is-c++-class. */ |
176620f1 EZ |
3285 | else if (kind < TYPES_DOMAIN || |
3286 | (kind == TYPES_DOMAIN && | |
3287 | SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c SS |
3288 | { |
3289 | type_print (SYMBOL_TYPE (sym), | |
c5aa993b | 3290 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
de5ad195 | 3291 | ? "" : SYMBOL_PRINT_NAME (sym)), |
c5aa993b | 3292 | gdb_stdout, 0); |
c906108c SS |
3293 | |
3294 | printf_filtered (";\n"); | |
3295 | } | |
c906108c SS |
3296 | } |
3297 | ||
3298 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
3299 | for non-debugging symbols to gdb_stdout. */ |
3300 | ||
c906108c | 3301 | static void |
fba45db2 | 3302 | print_msymbol_info (struct minimal_symbol *msymbol) |
c906108c | 3303 | { |
d80b854b | 3304 | struct gdbarch *gdbarch = get_objfile_arch (msymbol_objfile (msymbol)); |
3ac4495a MS |
3305 | char *tmp; |
3306 | ||
d80b854b | 3307 | if (gdbarch_addr_bit (gdbarch) <= 32) |
bb599908 PH |
3308 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol) |
3309 | & (CORE_ADDR) 0xffffffff, | |
3310 | 8); | |
3ac4495a | 3311 | else |
bb599908 PH |
3312 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol), |
3313 | 16); | |
3ac4495a | 3314 | printf_filtered ("%s %s\n", |
de5ad195 | 3315 | tmp, SYMBOL_PRINT_NAME (msymbol)); |
c906108c SS |
3316 | } |
3317 | ||
3318 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 3319 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 3320 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
3321 | matches. */ |
3322 | ||
c906108c | 3323 | static void |
8903c50d | 3324 | symtab_symbol_info (char *regexp, enum search_domain kind, int from_tty) |
c906108c | 3325 | { |
bc043ef3 | 3326 | static const char * const classnames[] = |
e8930875 | 3327 | {"variable", "function", "type"}; |
c906108c SS |
3328 | struct symbol_search *symbols; |
3329 | struct symbol_search *p; | |
3330 | struct cleanup *old_chain; | |
3331 | char *last_filename = NULL; | |
3332 | int first = 1; | |
3333 | ||
e8930875 JK |
3334 | gdb_assert (kind <= TYPES_DOMAIN); |
3335 | ||
c378eb4e | 3336 | /* Must make sure that if we're interrupted, symbols gets freed. */ |
c906108c | 3337 | search_symbols (regexp, kind, 0, (char **) NULL, &symbols); |
5bd98722 | 3338 | old_chain = make_cleanup_free_search_symbols (symbols); |
c906108c SS |
3339 | |
3340 | printf_filtered (regexp | |
c5aa993b JM |
3341 | ? "All %ss matching regular expression \"%s\":\n" |
3342 | : "All defined %ss:\n", | |
8903c50d | 3343 | classnames[kind], regexp); |
c906108c SS |
3344 | |
3345 | for (p = symbols; p != NULL; p = p->next) | |
3346 | { | |
3347 | QUIT; | |
3348 | ||
3349 | if (p->msymbol != NULL) | |
c5aa993b JM |
3350 | { |
3351 | if (first) | |
3352 | { | |
3353 | printf_filtered ("\nNon-debugging symbols:\n"); | |
3354 | first = 0; | |
3355 | } | |
3356 | print_msymbol_info (p->msymbol); | |
3357 | } | |
c906108c | 3358 | else |
c5aa993b JM |
3359 | { |
3360 | print_symbol_info (kind, | |
3361 | p->symtab, | |
3362 | p->symbol, | |
3363 | p->block, | |
3364 | last_filename); | |
3365 | last_filename = p->symtab->filename; | |
3366 | } | |
c906108c SS |
3367 | } |
3368 | ||
3369 | do_cleanups (old_chain); | |
3370 | } | |
3371 | ||
3372 | static void | |
fba45db2 | 3373 | variables_info (char *regexp, int from_tty) |
c906108c | 3374 | { |
176620f1 | 3375 | symtab_symbol_info (regexp, VARIABLES_DOMAIN, from_tty); |
c906108c SS |
3376 | } |
3377 | ||
3378 | static void | |
fba45db2 | 3379 | functions_info (char *regexp, int from_tty) |
c906108c | 3380 | { |
176620f1 | 3381 | symtab_symbol_info (regexp, FUNCTIONS_DOMAIN, from_tty); |
c906108c SS |
3382 | } |
3383 | ||
357e46e7 | 3384 | |
c906108c | 3385 | static void |
fba45db2 | 3386 | types_info (char *regexp, int from_tty) |
c906108c | 3387 | { |
176620f1 | 3388 | symtab_symbol_info (regexp, TYPES_DOMAIN, from_tty); |
c906108c SS |
3389 | } |
3390 | ||
c378eb4e | 3391 | /* Breakpoint all functions matching regular expression. */ |
8926118c | 3392 | |
8b93c638 | 3393 | void |
fba45db2 | 3394 | rbreak_command_wrapper (char *regexp, int from_tty) |
8b93c638 JM |
3395 | { |
3396 | rbreak_command (regexp, from_tty); | |
3397 | } | |
8926118c | 3398 | |
95a42b64 TT |
3399 | /* A cleanup function that calls end_rbreak_breakpoints. */ |
3400 | ||
3401 | static void | |
3402 | do_end_rbreak_breakpoints (void *ignore) | |
3403 | { | |
3404 | end_rbreak_breakpoints (); | |
3405 | } | |
3406 | ||
c906108c | 3407 | static void |
fba45db2 | 3408 | rbreak_command (char *regexp, int from_tty) |
c906108c SS |
3409 | { |
3410 | struct symbol_search *ss; | |
3411 | struct symbol_search *p; | |
3412 | struct cleanup *old_chain; | |
95a42b64 TT |
3413 | char *string = NULL; |
3414 | int len = 0; | |
9c1e305a | 3415 | char **files = NULL, *file_name; |
8bd10a10 | 3416 | int nfiles = 0; |
c906108c | 3417 | |
8bd10a10 CM |
3418 | if (regexp) |
3419 | { | |
3420 | char *colon = strchr (regexp, ':'); | |
433759f7 | 3421 | |
8bd10a10 CM |
3422 | if (colon && *(colon + 1) != ':') |
3423 | { | |
3424 | int colon_index; | |
8bd10a10 CM |
3425 | |
3426 | colon_index = colon - regexp; | |
3427 | file_name = alloca (colon_index + 1); | |
3428 | memcpy (file_name, regexp, colon_index); | |
3429 | file_name[colon_index--] = 0; | |
3430 | while (isspace (file_name[colon_index])) | |
3431 | file_name[colon_index--] = 0; | |
3432 | files = &file_name; | |
3433 | nfiles = 1; | |
3434 | regexp = colon + 1; | |
3435 | while (isspace (*regexp)) regexp++; | |
3436 | } | |
3437 | } | |
3438 | ||
3439 | search_symbols (regexp, FUNCTIONS_DOMAIN, nfiles, files, &ss); | |
5bd98722 | 3440 | old_chain = make_cleanup_free_search_symbols (ss); |
95a42b64 | 3441 | make_cleanup (free_current_contents, &string); |
c906108c | 3442 | |
95a42b64 TT |
3443 | start_rbreak_breakpoints (); |
3444 | make_cleanup (do_end_rbreak_breakpoints, NULL); | |
c906108c SS |
3445 | for (p = ss; p != NULL; p = p->next) |
3446 | { | |
3447 | if (p->msymbol == NULL) | |
c5aa993b | 3448 | { |
95a42b64 TT |
3449 | int newlen = (strlen (p->symtab->filename) |
3450 | + strlen (SYMBOL_LINKAGE_NAME (p->symbol)) | |
3451 | + 4); | |
433759f7 | 3452 | |
95a42b64 TT |
3453 | if (newlen > len) |
3454 | { | |
3455 | string = xrealloc (string, newlen); | |
3456 | len = newlen; | |
3457 | } | |
c5aa993b JM |
3458 | strcpy (string, p->symtab->filename); |
3459 | strcat (string, ":'"); | |
2335f48e | 3460 | strcat (string, SYMBOL_LINKAGE_NAME (p->symbol)); |
c5aa993b JM |
3461 | strcat (string, "'"); |
3462 | break_command (string, from_tty); | |
176620f1 | 3463 | print_symbol_info (FUNCTIONS_DOMAIN, |
c5aa993b JM |
3464 | p->symtab, |
3465 | p->symbol, | |
3466 | p->block, | |
3467 | p->symtab->filename); | |
3468 | } | |
c906108c | 3469 | else |
c5aa993b | 3470 | { |
433759f7 MS |
3471 | int newlen = (strlen (SYMBOL_LINKAGE_NAME (p->msymbol)) + 3); |
3472 | ||
95a42b64 TT |
3473 | if (newlen > len) |
3474 | { | |
3475 | string = xrealloc (string, newlen); | |
3476 | len = newlen; | |
3477 | } | |
6214f497 DJ |
3478 | strcpy (string, "'"); |
3479 | strcat (string, SYMBOL_LINKAGE_NAME (p->msymbol)); | |
3480 | strcat (string, "'"); | |
3481 | ||
3482 | break_command (string, from_tty); | |
c5aa993b | 3483 | printf_filtered ("<function, no debug info> %s;\n", |
de5ad195 | 3484 | SYMBOL_PRINT_NAME (p->msymbol)); |
c5aa993b | 3485 | } |
c906108c SS |
3486 | } |
3487 | ||
3488 | do_cleanups (old_chain); | |
3489 | } | |
c906108c | 3490 | \f |
c5aa993b | 3491 | |
c906108c SS |
3492 | /* Helper routine for make_symbol_completion_list. */ |
3493 | ||
3494 | static int return_val_size; | |
3495 | static int return_val_index; | |
3496 | static char **return_val; | |
3497 | ||
3498 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ | |
c906108c | 3499 | completion_list_add_name \ |
2335f48e | 3500 | (SYMBOL_NATURAL_NAME (symbol), (sym_text), (len), (text), (word)) |
c906108c SS |
3501 | |
3502 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b | 3503 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
c378eb4e | 3504 | characters. If so, add it to the current completion list. */ |
c906108c SS |
3505 | |
3506 | static void | |
fba45db2 KB |
3507 | completion_list_add_name (char *symname, char *sym_text, int sym_text_len, |
3508 | char *text, char *word) | |
c906108c SS |
3509 | { |
3510 | int newsize; | |
559a7a62 JK |
3511 | int (*ncmp) (const char *, const char *, size_t); |
3512 | ||
3513 | ncmp = (case_sensitivity == case_sensitive_on ? strncmp : strncasecmp); | |
c906108c | 3514 | |
c378eb4e | 3515 | /* Clip symbols that cannot match. */ |
c906108c | 3516 | |
559a7a62 | 3517 | if (ncmp (symname, sym_text, sym_text_len) != 0) |
c906108c SS |
3518 | { |
3519 | return; | |
3520 | } | |
3521 | ||
c906108c | 3522 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 3523 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
3524 | |
3525 | { | |
3526 | char *new; | |
433759f7 | 3527 | |
c906108c SS |
3528 | if (word == sym_text) |
3529 | { | |
3530 | new = xmalloc (strlen (symname) + 5); | |
3531 | strcpy (new, symname); | |
3532 | } | |
3533 | else if (word > sym_text) | |
3534 | { | |
3535 | /* Return some portion of symname. */ | |
3536 | new = xmalloc (strlen (symname) + 5); | |
3537 | strcpy (new, symname + (word - sym_text)); | |
3538 | } | |
3539 | else | |
3540 | { | |
3541 | /* Return some of SYM_TEXT plus symname. */ | |
3542 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
3543 | strncpy (new, word, sym_text - word); | |
3544 | new[sym_text - word] = '\0'; | |
3545 | strcat (new, symname); | |
3546 | } | |
3547 | ||
c906108c SS |
3548 | if (return_val_index + 3 > return_val_size) |
3549 | { | |
3550 | newsize = (return_val_size *= 2) * sizeof (char *); | |
3551 | return_val = (char **) xrealloc ((char *) return_val, newsize); | |
3552 | } | |
3553 | return_val[return_val_index++] = new; | |
3554 | return_val[return_val_index] = NULL; | |
3555 | } | |
3556 | } | |
3557 | ||
69636828 AF |
3558 | /* ObjC: In case we are completing on a selector, look as the msymbol |
3559 | again and feed all the selectors into the mill. */ | |
3560 | ||
3561 | static void | |
3562 | completion_list_objc_symbol (struct minimal_symbol *msymbol, char *sym_text, | |
3563 | int sym_text_len, char *text, char *word) | |
3564 | { | |
3565 | static char *tmp = NULL; | |
3566 | static unsigned int tmplen = 0; | |
9af17804 | 3567 | |
69636828 AF |
3568 | char *method, *category, *selector; |
3569 | char *tmp2 = NULL; | |
9af17804 | 3570 | |
69636828 AF |
3571 | method = SYMBOL_NATURAL_NAME (msymbol); |
3572 | ||
3573 | /* Is it a method? */ | |
3574 | if ((method[0] != '-') && (method[0] != '+')) | |
3575 | return; | |
3576 | ||
3577 | if (sym_text[0] == '[') | |
3578 | /* Complete on shortened method method. */ | |
3579 | completion_list_add_name (method + 1, sym_text, sym_text_len, text, word); | |
9af17804 | 3580 | |
69636828 AF |
3581 | while ((strlen (method) + 1) >= tmplen) |
3582 | { | |
3583 | if (tmplen == 0) | |
3584 | tmplen = 1024; | |
3585 | else | |
3586 | tmplen *= 2; | |
3587 | tmp = xrealloc (tmp, tmplen); | |
3588 | } | |
3589 | selector = strchr (method, ' '); | |
3590 | if (selector != NULL) | |
3591 | selector++; | |
9af17804 | 3592 | |
69636828 | 3593 | category = strchr (method, '('); |
9af17804 | 3594 | |
69636828 AF |
3595 | if ((category != NULL) && (selector != NULL)) |
3596 | { | |
3597 | memcpy (tmp, method, (category - method)); | |
3598 | tmp[category - method] = ' '; | |
3599 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
3600 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); | |
3601 | if (sym_text[0] == '[') | |
3602 | completion_list_add_name (tmp + 1, sym_text, sym_text_len, text, word); | |
3603 | } | |
9af17804 | 3604 | |
69636828 AF |
3605 | if (selector != NULL) |
3606 | { | |
3607 | /* Complete on selector only. */ | |
3608 | strcpy (tmp, selector); | |
3609 | tmp2 = strchr (tmp, ']'); | |
3610 | if (tmp2 != NULL) | |
3611 | *tmp2 = '\0'; | |
9af17804 | 3612 | |
69636828 AF |
3613 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); |
3614 | } | |
3615 | } | |
3616 | ||
3617 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 3618 | symbols. FIXME: This should probably be language-specific. */ |
69636828 AF |
3619 | |
3620 | static char * | |
3621 | language_search_unquoted_string (char *text, char *p) | |
3622 | { | |
3623 | for (; p > text; --p) | |
3624 | { | |
3625 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
3626 | continue; | |
3627 | else | |
3628 | { | |
3629 | if ((current_language->la_language == language_objc)) | |
3630 | { | |
c378eb4e | 3631 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
3632 | continue; |
3633 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 3634 | p -= 2; /* Beginning of a method name. */ |
69636828 | 3635 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 3636 | { /* Might be part of a method name. */ |
69636828 AF |
3637 | char *t = p; |
3638 | ||
3639 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
3640 | that we are in the middle of a method name. However, | |
3641 | finding "-[" or "+[" should be pretty un-ambiguous. | |
3642 | Unfortunately we have to find it now to decide. */ | |
3643 | ||
3644 | while (t > text) | |
3645 | if (isalnum (t[-1]) || t[-1] == '_' || | |
3646 | t[-1] == ' ' || t[-1] == ':' || | |
3647 | t[-1] == '(' || t[-1] == ')') | |
3648 | --t; | |
3649 | else | |
3650 | break; | |
3651 | ||
3652 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
3653 | p = t - 2; /* Method name detected. */ |
3654 | /* Else we leave with p unchanged. */ | |
69636828 AF |
3655 | } |
3656 | } | |
3657 | break; | |
3658 | } | |
3659 | } | |
3660 | return p; | |
3661 | } | |
3662 | ||
edb3359d DJ |
3663 | static void |
3664 | completion_list_add_fields (struct symbol *sym, char *sym_text, | |
3665 | int sym_text_len, char *text, char *word) | |
3666 | { | |
3667 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
3668 | { | |
3669 | struct type *t = SYMBOL_TYPE (sym); | |
3670 | enum type_code c = TYPE_CODE (t); | |
3671 | int j; | |
3672 | ||
3673 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
3674 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
3675 | if (TYPE_FIELD_NAME (t, j)) | |
3676 | completion_list_add_name (TYPE_FIELD_NAME (t, j), | |
3677 | sym_text, sym_text_len, text, word); | |
3678 | } | |
3679 | } | |
3680 | ||
ccefe4c4 | 3681 | /* Type of the user_data argument passed to add_macro_name or |
7b08b9eb | 3682 | expand_partial_symbol_name. The contents are simply whatever is |
ccefe4c4 TT |
3683 | needed by completion_list_add_name. */ |
3684 | struct add_name_data | |
9a044a89 TT |
3685 | { |
3686 | char *sym_text; | |
3687 | int sym_text_len; | |
3688 | char *text; | |
3689 | char *word; | |
3690 | }; | |
3691 | ||
3692 | /* A callback used with macro_for_each and macro_for_each_in_scope. | |
3693 | This adds a macro's name to the current completion list. */ | |
3694 | static void | |
3695 | add_macro_name (const char *name, const struct macro_definition *ignore, | |
3696 | void *user_data) | |
3697 | { | |
ccefe4c4 | 3698 | struct add_name_data *datum = (struct add_name_data *) user_data; |
433759f7 | 3699 | |
ccefe4c4 TT |
3700 | completion_list_add_name ((char *) name, |
3701 | datum->sym_text, datum->sym_text_len, | |
3702 | datum->text, datum->word); | |
3703 | } | |
3704 | ||
7b08b9eb JK |
3705 | /* A callback for expand_partial_symbol_names. */ |
3706 | static int | |
3707 | expand_partial_symbol_name (const char *name, void *user_data) | |
ccefe4c4 TT |
3708 | { |
3709 | struct add_name_data *datum = (struct add_name_data *) user_data; | |
165195f4 JK |
3710 | int (*ncmp) (const char *, const char *, size_t); |
3711 | ||
3712 | ncmp = (case_sensitivity == case_sensitive_on ? strncmp : strncasecmp); | |
433759f7 | 3713 | |
165195f4 | 3714 | return ncmp (name, datum->sym_text, datum->sym_text_len) == 0; |
9a044a89 TT |
3715 | } |
3716 | ||
c906108c | 3717 | char ** |
f55ee35c JK |
3718 | default_make_symbol_completion_list_break_on (char *text, char *word, |
3719 | const char *break_on) | |
c906108c | 3720 | { |
41d27058 JB |
3721 | /* Problem: All of the symbols have to be copied because readline |
3722 | frees them. I'm not going to worry about this; hopefully there | |
3723 | won't be that many. */ | |
3724 | ||
de4f826b DC |
3725 | struct symbol *sym; |
3726 | struct symtab *s; | |
de4f826b DC |
3727 | struct minimal_symbol *msymbol; |
3728 | struct objfile *objfile; | |
edb3359d DJ |
3729 | struct block *b; |
3730 | const struct block *surrounding_static_block, *surrounding_global_block; | |
de4f826b | 3731 | struct dict_iterator iter; |
c906108c SS |
3732 | /* The symbol we are completing on. Points in same buffer as text. */ |
3733 | char *sym_text; | |
3734 | /* Length of sym_text. */ | |
3735 | int sym_text_len; | |
ccefe4c4 | 3736 | struct add_name_data datum; |
c906108c | 3737 | |
41d27058 | 3738 | /* Now look for the symbol we are supposed to complete on. */ |
c906108c SS |
3739 | { |
3740 | char *p; | |
3741 | char quote_found; | |
3742 | char *quote_pos = NULL; | |
3743 | ||
3744 | /* First see if this is a quoted string. */ | |
3745 | quote_found = '\0'; | |
3746 | for (p = text; *p != '\0'; ++p) | |
3747 | { | |
3748 | if (quote_found != '\0') | |
3749 | { | |
3750 | if (*p == quote_found) | |
3751 | /* Found close quote. */ | |
3752 | quote_found = '\0'; | |
3753 | else if (*p == '\\' && p[1] == quote_found) | |
3754 | /* A backslash followed by the quote character | |
c5aa993b | 3755 | doesn't end the string. */ |
c906108c SS |
3756 | ++p; |
3757 | } | |
3758 | else if (*p == '\'' || *p == '"') | |
3759 | { | |
3760 | quote_found = *p; | |
3761 | quote_pos = p; | |
3762 | } | |
3763 | } | |
3764 | if (quote_found == '\'') | |
3765 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3766 | sym_text = quote_pos + 1; | |
3767 | else if (quote_found == '"') | |
3768 | /* A double-quoted string is never a symbol, nor does it make sense | |
c5aa993b | 3769 | to complete it any other way. */ |
c94fdfd0 EZ |
3770 | { |
3771 | return_val = (char **) xmalloc (sizeof (char *)); | |
3772 | return_val[0] = NULL; | |
3773 | return return_val; | |
3774 | } | |
c906108c SS |
3775 | else |
3776 | { | |
3777 | /* It is not a quoted string. Break it based on the characters | |
3778 | which are in symbols. */ | |
3779 | while (p > text) | |
3780 | { | |
95699ff0 | 3781 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' |
f55ee35c | 3782 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) |
c906108c SS |
3783 | --p; |
3784 | else | |
3785 | break; | |
3786 | } | |
3787 | sym_text = p; | |
3788 | } | |
3789 | } | |
3790 | ||
3791 | sym_text_len = strlen (sym_text); | |
3792 | ||
3793 | return_val_size = 100; | |
3794 | return_val_index = 0; | |
3795 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
3796 | return_val[0] = NULL; | |
3797 | ||
ccefe4c4 TT |
3798 | datum.sym_text = sym_text; |
3799 | datum.sym_text_len = sym_text_len; | |
3800 | datum.text = text; | |
3801 | datum.word = word; | |
3802 | ||
c906108c | 3803 | /* Look through the partial symtabs for all symbols which begin |
7b08b9eb JK |
3804 | by matching SYM_TEXT. Expand all CUs that you find to the list. |
3805 | The real names will get added by COMPLETION_LIST_ADD_SYMBOL below. */ | |
3806 | expand_partial_symbol_names (expand_partial_symbol_name, &datum); | |
c906108c SS |
3807 | |
3808 | /* At this point scan through the misc symbol vectors and add each | |
3809 | symbol you find to the list. Eventually we want to ignore | |
3810 | anything that isn't a text symbol (everything else will be | |
3811 | handled by the psymtab code above). */ | |
3812 | ||
3813 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
3814 | { |
3815 | QUIT; | |
3816 | COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word); | |
9af17804 | 3817 | |
69636828 | 3818 | completion_list_objc_symbol (msymbol, sym_text, sym_text_len, text, word); |
c5aa993b | 3819 | } |
c906108c SS |
3820 | |
3821 | /* Search upwards from currently selected frame (so that we can | |
edb3359d DJ |
3822 | complete on local vars). Also catch fields of types defined in |
3823 | this places which match our text string. Only complete on types | |
c378eb4e | 3824 | visible from current context. */ |
edb3359d DJ |
3825 | |
3826 | b = get_selected_block (0); | |
3827 | surrounding_static_block = block_static_block (b); | |
3828 | surrounding_global_block = block_global_block (b); | |
3829 | if (surrounding_static_block != NULL) | |
3830 | while (b != surrounding_static_block) | |
3831 | { | |
3832 | QUIT; | |
c906108c | 3833 | |
edb3359d DJ |
3834 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
3835 | { | |
3836 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, | |
3837 | word); | |
3838 | completion_list_add_fields (sym, sym_text, sym_text_len, text, | |
3839 | word); | |
3840 | } | |
c5aa993b | 3841 | |
edb3359d DJ |
3842 | /* Stop when we encounter an enclosing function. Do not stop for |
3843 | non-inlined functions - the locals of the enclosing function | |
3844 | are in scope for a nested function. */ | |
3845 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
3846 | break; | |
3847 | b = BLOCK_SUPERBLOCK (b); | |
3848 | } | |
c906108c | 3849 | |
edb3359d | 3850 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 3851 | |
edb3359d DJ |
3852 | if (surrounding_static_block != NULL) |
3853 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
3854 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
3855 | ||
3856 | if (surrounding_global_block != NULL) | |
3857 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
3858 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
c906108c SS |
3859 | |
3860 | /* Go through the symtabs and check the externs and statics for | |
3861 | symbols which match. */ | |
3862 | ||
11309657 | 3863 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3864 | { |
3865 | QUIT; | |
3866 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 3867 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 3868 | { |
c5aa993b JM |
3869 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3870 | } | |
3871 | } | |
c906108c | 3872 | |
11309657 | 3873 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3874 | { |
3875 | QUIT; | |
3876 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 3877 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 3878 | { |
c5aa993b JM |
3879 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3880 | } | |
3881 | } | |
c906108c | 3882 | |
9a044a89 TT |
3883 | if (current_language->la_macro_expansion == macro_expansion_c) |
3884 | { | |
3885 | struct macro_scope *scope; | |
9a044a89 TT |
3886 | |
3887 | /* Add any macros visible in the default scope. Note that this | |
3888 | may yield the occasional wrong result, because an expression | |
3889 | might be evaluated in a scope other than the default. For | |
3890 | example, if the user types "break file:line if <TAB>", the | |
3891 | resulting expression will be evaluated at "file:line" -- but | |
3892 | at there does not seem to be a way to detect this at | |
3893 | completion time. */ | |
3894 | scope = default_macro_scope (); | |
3895 | if (scope) | |
3896 | { | |
3897 | macro_for_each_in_scope (scope->file, scope->line, | |
3898 | add_macro_name, &datum); | |
3899 | xfree (scope); | |
3900 | } | |
3901 | ||
3902 | /* User-defined macros are always visible. */ | |
3903 | macro_for_each (macro_user_macros, add_macro_name, &datum); | |
3904 | } | |
3905 | ||
c906108c SS |
3906 | return (return_val); |
3907 | } | |
3908 | ||
f55ee35c JK |
3909 | char ** |
3910 | default_make_symbol_completion_list (char *text, char *word) | |
3911 | { | |
3912 | return default_make_symbol_completion_list_break_on (text, word, ""); | |
3913 | } | |
3914 | ||
41d27058 JB |
3915 | /* Return a NULL terminated array of all symbols (regardless of class) |
3916 | which begin by matching TEXT. If the answer is no symbols, then | |
3917 | the return value is an array which contains only a NULL pointer. */ | |
3918 | ||
3919 | char ** | |
3920 | make_symbol_completion_list (char *text, char *word) | |
3921 | { | |
3922 | return current_language->la_make_symbol_completion_list (text, word); | |
3923 | } | |
3924 | ||
d8906c6f TJB |
3925 | /* Like make_symbol_completion_list, but suitable for use as a |
3926 | completion function. */ | |
3927 | ||
3928 | char ** | |
3929 | make_symbol_completion_list_fn (struct cmd_list_element *ignore, | |
3930 | char *text, char *word) | |
3931 | { | |
3932 | return make_symbol_completion_list (text, word); | |
3933 | } | |
3934 | ||
c94fdfd0 EZ |
3935 | /* Like make_symbol_completion_list, but returns a list of symbols |
3936 | defined in a source file FILE. */ | |
3937 | ||
3938 | char ** | |
3939 | make_file_symbol_completion_list (char *text, char *word, char *srcfile) | |
3940 | { | |
52f0bd74 AC |
3941 | struct symbol *sym; |
3942 | struct symtab *s; | |
3943 | struct block *b; | |
de4f826b | 3944 | struct dict_iterator iter; |
c94fdfd0 EZ |
3945 | /* The symbol we are completing on. Points in same buffer as text. */ |
3946 | char *sym_text; | |
3947 | /* Length of sym_text. */ | |
3948 | int sym_text_len; | |
3949 | ||
3950 | /* Now look for the symbol we are supposed to complete on. | |
3951 | FIXME: This should be language-specific. */ | |
3952 | { | |
3953 | char *p; | |
3954 | char quote_found; | |
3955 | char *quote_pos = NULL; | |
3956 | ||
3957 | /* First see if this is a quoted string. */ | |
3958 | quote_found = '\0'; | |
3959 | for (p = text; *p != '\0'; ++p) | |
3960 | { | |
3961 | if (quote_found != '\0') | |
3962 | { | |
3963 | if (*p == quote_found) | |
3964 | /* Found close quote. */ | |
3965 | quote_found = '\0'; | |
3966 | else if (*p == '\\' && p[1] == quote_found) | |
3967 | /* A backslash followed by the quote character | |
3968 | doesn't end the string. */ | |
3969 | ++p; | |
3970 | } | |
3971 | else if (*p == '\'' || *p == '"') | |
3972 | { | |
3973 | quote_found = *p; | |
3974 | quote_pos = p; | |
3975 | } | |
3976 | } | |
3977 | if (quote_found == '\'') | |
3978 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3979 | sym_text = quote_pos + 1; | |
3980 | else if (quote_found == '"') | |
3981 | /* A double-quoted string is never a symbol, nor does it make sense | |
3982 | to complete it any other way. */ | |
3983 | { | |
3984 | return_val = (char **) xmalloc (sizeof (char *)); | |
3985 | return_val[0] = NULL; | |
3986 | return return_val; | |
3987 | } | |
3988 | else | |
3989 | { | |
69636828 AF |
3990 | /* Not a quoted string. */ |
3991 | sym_text = language_search_unquoted_string (text, p); | |
c94fdfd0 EZ |
3992 | } |
3993 | } | |
3994 | ||
3995 | sym_text_len = strlen (sym_text); | |
3996 | ||
3997 | return_val_size = 10; | |
3998 | return_val_index = 0; | |
3999 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
4000 | return_val[0] = NULL; | |
4001 | ||
4002 | /* Find the symtab for SRCFILE (this loads it if it was not yet read | |
4003 | in). */ | |
4004 | s = lookup_symtab (srcfile); | |
4005 | if (s == NULL) | |
4006 | { | |
4007 | /* Maybe they typed the file with leading directories, while the | |
4008 | symbol tables record only its basename. */ | |
31889e00 | 4009 | const char *tail = lbasename (srcfile); |
c94fdfd0 EZ |
4010 | |
4011 | if (tail > srcfile) | |
4012 | s = lookup_symtab (tail); | |
4013 | } | |
4014 | ||
4015 | /* If we have no symtab for that file, return an empty list. */ | |
4016 | if (s == NULL) | |
4017 | return (return_val); | |
4018 | ||
4019 | /* Go through this symtab and check the externs and statics for | |
4020 | symbols which match. */ | |
4021 | ||
4022 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 4023 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 4024 | { |
c94fdfd0 EZ |
4025 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4026 | } | |
4027 | ||
4028 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 4029 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 4030 | { |
c94fdfd0 EZ |
4031 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4032 | } | |
4033 | ||
4034 | return (return_val); | |
4035 | } | |
4036 | ||
4037 | /* A helper function for make_source_files_completion_list. It adds | |
4038 | another file name to a list of possible completions, growing the | |
4039 | list as necessary. */ | |
4040 | ||
4041 | static void | |
4042 | add_filename_to_list (const char *fname, char *text, char *word, | |
4043 | char ***list, int *list_used, int *list_alloced) | |
4044 | { | |
4045 | char *new; | |
4046 | size_t fnlen = strlen (fname); | |
4047 | ||
4048 | if (*list_used + 1 >= *list_alloced) | |
4049 | { | |
4050 | *list_alloced *= 2; | |
4051 | *list = (char **) xrealloc ((char *) *list, | |
4052 | *list_alloced * sizeof (char *)); | |
4053 | } | |
4054 | ||
4055 | if (word == text) | |
4056 | { | |
4057 | /* Return exactly fname. */ | |
4058 | new = xmalloc (fnlen + 5); | |
4059 | strcpy (new, fname); | |
4060 | } | |
4061 | else if (word > text) | |
4062 | { | |
4063 | /* Return some portion of fname. */ | |
4064 | new = xmalloc (fnlen + 5); | |
4065 | strcpy (new, fname + (word - text)); | |
4066 | } | |
4067 | else | |
4068 | { | |
4069 | /* Return some of TEXT plus fname. */ | |
4070 | new = xmalloc (fnlen + (text - word) + 5); | |
4071 | strncpy (new, word, text - word); | |
4072 | new[text - word] = '\0'; | |
4073 | strcat (new, fname); | |
4074 | } | |
4075 | (*list)[*list_used] = new; | |
4076 | (*list)[++*list_used] = NULL; | |
4077 | } | |
4078 | ||
4079 | static int | |
4080 | not_interesting_fname (const char *fname) | |
4081 | { | |
4082 | static const char *illegal_aliens[] = { | |
4083 | "_globals_", /* inserted by coff_symtab_read */ | |
4084 | NULL | |
4085 | }; | |
4086 | int i; | |
4087 | ||
4088 | for (i = 0; illegal_aliens[i]; i++) | |
4089 | { | |
0ba1096a | 4090 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
4091 | return 1; |
4092 | } | |
4093 | return 0; | |
4094 | } | |
4095 | ||
ccefe4c4 TT |
4096 | /* An object of this type is passed as the user_data argument to |
4097 | map_partial_symbol_filenames. */ | |
4098 | struct add_partial_filename_data | |
4099 | { | |
4100 | int *first; | |
4101 | char *text; | |
4102 | char *word; | |
4103 | int text_len; | |
4104 | char ***list; | |
4105 | int *list_used; | |
4106 | int *list_alloced; | |
4107 | }; | |
4108 | ||
4109 | /* A callback for map_partial_symbol_filenames. */ | |
4110 | static void | |
2837d59e | 4111 | maybe_add_partial_symtab_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
4112 | void *user_data) |
4113 | { | |
4114 | struct add_partial_filename_data *data = user_data; | |
4115 | ||
4116 | if (not_interesting_fname (filename)) | |
4117 | return; | |
4118 | if (!filename_seen (filename, 1, data->first) | |
0ba1096a | 4119 | && filename_ncmp (filename, data->text, data->text_len) == 0) |
ccefe4c4 TT |
4120 | { |
4121 | /* This file matches for a completion; add it to the | |
4122 | current list of matches. */ | |
4123 | add_filename_to_list (filename, data->text, data->word, | |
4124 | data->list, data->list_used, data->list_alloced); | |
4125 | } | |
4126 | else | |
4127 | { | |
4128 | const char *base_name = lbasename (filename); | |
433759f7 | 4129 | |
ccefe4c4 TT |
4130 | if (base_name != filename |
4131 | && !filename_seen (base_name, 1, data->first) | |
0ba1096a | 4132 | && filename_ncmp (base_name, data->text, data->text_len) == 0) |
ccefe4c4 TT |
4133 | add_filename_to_list (base_name, data->text, data->word, |
4134 | data->list, data->list_used, data->list_alloced); | |
4135 | } | |
4136 | } | |
4137 | ||
c94fdfd0 EZ |
4138 | /* Return a NULL terminated array of all source files whose names |
4139 | begin with matching TEXT. The file names are looked up in the | |
4140 | symbol tables of this program. If the answer is no matchess, then | |
4141 | the return value is an array which contains only a NULL pointer. */ | |
4142 | ||
4143 | char ** | |
4144 | make_source_files_completion_list (char *text, char *word) | |
4145 | { | |
52f0bd74 | 4146 | struct symtab *s; |
52f0bd74 | 4147 | struct objfile *objfile; |
c94fdfd0 EZ |
4148 | int first = 1; |
4149 | int list_alloced = 1; | |
4150 | int list_used = 0; | |
4151 | size_t text_len = strlen (text); | |
4152 | char **list = (char **) xmalloc (list_alloced * sizeof (char *)); | |
31889e00 | 4153 | const char *base_name; |
ccefe4c4 | 4154 | struct add_partial_filename_data datum; |
c94fdfd0 EZ |
4155 | |
4156 | list[0] = NULL; | |
4157 | ||
4158 | if (!have_full_symbols () && !have_partial_symbols ()) | |
4159 | return list; | |
4160 | ||
4161 | ALL_SYMTABS (objfile, s) | |
4162 | { | |
4163 | if (not_interesting_fname (s->filename)) | |
4164 | continue; | |
4165 | if (!filename_seen (s->filename, 1, &first) | |
0ba1096a | 4166 | && filename_ncmp (s->filename, text, text_len) == 0) |
c94fdfd0 EZ |
4167 | { |
4168 | /* This file matches for a completion; add it to the current | |
4169 | list of matches. */ | |
4170 | add_filename_to_list (s->filename, text, word, | |
4171 | &list, &list_used, &list_alloced); | |
4172 | } | |
4173 | else | |
4174 | { | |
4175 | /* NOTE: We allow the user to type a base name when the | |
4176 | debug info records leading directories, but not the other | |
4177 | way around. This is what subroutines of breakpoint | |
4178 | command do when they parse file names. */ | |
31889e00 | 4179 | base_name = lbasename (s->filename); |
c94fdfd0 EZ |
4180 | if (base_name != s->filename |
4181 | && !filename_seen (base_name, 1, &first) | |
0ba1096a | 4182 | && filename_ncmp (base_name, text, text_len) == 0) |
c94fdfd0 EZ |
4183 | add_filename_to_list (base_name, text, word, |
4184 | &list, &list_used, &list_alloced); | |
4185 | } | |
4186 | } | |
4187 | ||
ccefe4c4 TT |
4188 | datum.first = &first; |
4189 | datum.text = text; | |
4190 | datum.word = word; | |
4191 | datum.text_len = text_len; | |
4192 | datum.list = &list; | |
4193 | datum.list_used = &list_used; | |
4194 | datum.list_alloced = &list_alloced; | |
4195 | map_partial_symbol_filenames (maybe_add_partial_symtab_filename, &datum); | |
c94fdfd0 EZ |
4196 | |
4197 | return list; | |
4198 | } | |
4199 | ||
c906108c SS |
4200 | /* Determine if PC is in the prologue of a function. The prologue is the area |
4201 | between the first instruction of a function, and the first executable line. | |
4202 | Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue. | |
4203 | ||
4204 | If non-zero, func_start is where we think the prologue starts, possibly | |
c378eb4e | 4205 | by previous examination of symbol table information. */ |
c906108c SS |
4206 | |
4207 | int | |
d80b854b | 4208 | in_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR func_start) |
c906108c SS |
4209 | { |
4210 | struct symtab_and_line sal; | |
4211 | CORE_ADDR func_addr, func_end; | |
4212 | ||
54cf9c03 EZ |
4213 | /* We have several sources of information we can consult to figure |
4214 | this out. | |
4215 | - Compilers usually emit line number info that marks the prologue | |
4216 | as its own "source line". So the ending address of that "line" | |
4217 | is the end of the prologue. If available, this is the most | |
4218 | reliable method. | |
4219 | - The minimal symbols and partial symbols, which can usually tell | |
4220 | us the starting and ending addresses of a function. | |
4221 | - If we know the function's start address, we can call the | |
a433963d | 4222 | architecture-defined gdbarch_skip_prologue function to analyze the |
54cf9c03 EZ |
4223 | instruction stream and guess where the prologue ends. |
4224 | - Our `func_start' argument; if non-zero, this is the caller's | |
4225 | best guess as to the function's entry point. At the time of | |
4226 | this writing, handle_inferior_event doesn't get this right, so | |
4227 | it should be our last resort. */ | |
4228 | ||
4229 | /* Consult the partial symbol table, to find which function | |
4230 | the PC is in. */ | |
4231 | if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end)) | |
4232 | { | |
4233 | CORE_ADDR prologue_end; | |
c906108c | 4234 | |
54cf9c03 EZ |
4235 | /* We don't even have minsym information, so fall back to using |
4236 | func_start, if given. */ | |
4237 | if (! func_start) | |
4238 | return 1; /* We *might* be in a prologue. */ | |
c906108c | 4239 | |
d80b854b | 4240 | prologue_end = gdbarch_skip_prologue (gdbarch, func_start); |
c906108c | 4241 | |
54cf9c03 EZ |
4242 | return func_start <= pc && pc < prologue_end; |
4243 | } | |
c906108c | 4244 | |
54cf9c03 EZ |
4245 | /* If we have line number information for the function, that's |
4246 | usually pretty reliable. */ | |
4247 | sal = find_pc_line (func_addr, 0); | |
c906108c | 4248 | |
54cf9c03 EZ |
4249 | /* Now sal describes the source line at the function's entry point, |
4250 | which (by convention) is the prologue. The end of that "line", | |
4251 | sal.end, is the end of the prologue. | |
4252 | ||
4253 | Note that, for functions whose source code is all on a single | |
4254 | line, the line number information doesn't always end up this way. | |
4255 | So we must verify that our purported end-of-prologue address is | |
4256 | *within* the function, not at its start or end. */ | |
4257 | if (sal.line == 0 | |
4258 | || sal.end <= func_addr | |
4259 | || func_end <= sal.end) | |
4260 | { | |
4261 | /* We don't have any good line number info, so use the minsym | |
4262 | information, together with the architecture-specific prologue | |
4263 | scanning code. */ | |
d80b854b | 4264 | CORE_ADDR prologue_end = gdbarch_skip_prologue (gdbarch, func_addr); |
c906108c | 4265 | |
54cf9c03 EZ |
4266 | return func_addr <= pc && pc < prologue_end; |
4267 | } | |
c906108c | 4268 | |
54cf9c03 EZ |
4269 | /* We have line number info, and it looks good. */ |
4270 | return func_addr <= pc && pc < sal.end; | |
c906108c SS |
4271 | } |
4272 | ||
634aa483 AC |
4273 | /* Given PC at the function's start address, attempt to find the |
4274 | prologue end using SAL information. Return zero if the skip fails. | |
4275 | ||
4276 | A non-optimized prologue traditionally has one SAL for the function | |
4277 | and a second for the function body. A single line function has | |
4278 | them both pointing at the same line. | |
4279 | ||
4280 | An optimized prologue is similar but the prologue may contain | |
4281 | instructions (SALs) from the instruction body. Need to skip those | |
4282 | while not getting into the function body. | |
4283 | ||
4284 | The functions end point and an increasing SAL line are used as | |
4285 | indicators of the prologue's endpoint. | |
4286 | ||
4287 | This code is based on the function refine_prologue_limit (versions | |
4288 | found in both ia64 and ppc). */ | |
4289 | ||
4290 | CORE_ADDR | |
d80b854b | 4291 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) |
634aa483 AC |
4292 | { |
4293 | struct symtab_and_line prologue_sal; | |
4294 | CORE_ADDR start_pc; | |
4295 | CORE_ADDR end_pc; | |
d54be744 | 4296 | struct block *bl; |
634aa483 AC |
4297 | |
4298 | /* Get an initial range for the function. */ | |
4299 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
d80b854b | 4300 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); |
634aa483 AC |
4301 | |
4302 | prologue_sal = find_pc_line (start_pc, 0); | |
4303 | if (prologue_sal.line != 0) | |
4304 | { | |
d54be744 DJ |
4305 | /* For langauges other than assembly, treat two consecutive line |
4306 | entries at the same address as a zero-instruction prologue. | |
4307 | The GNU assembler emits separate line notes for each instruction | |
4308 | in a multi-instruction macro, but compilers generally will not | |
4309 | do this. */ | |
4310 | if (prologue_sal.symtab->language != language_asm) | |
4311 | { | |
4312 | struct linetable *linetable = LINETABLE (prologue_sal.symtab); | |
d54be744 DJ |
4313 | int idx = 0; |
4314 | ||
4315 | /* Skip any earlier lines, and any end-of-sequence marker | |
4316 | from a previous function. */ | |
4317 | while (linetable->item[idx].pc != prologue_sal.pc | |
4318 | || linetable->item[idx].line == 0) | |
4319 | idx++; | |
4320 | ||
4321 | if (idx+1 < linetable->nitems | |
4322 | && linetable->item[idx+1].line != 0 | |
4323 | && linetable->item[idx+1].pc == start_pc) | |
4324 | return start_pc; | |
4325 | } | |
4326 | ||
576c2025 FF |
4327 | /* If there is only one sal that covers the entire function, |
4328 | then it is probably a single line function, like | |
c378eb4e | 4329 | "foo(){}". */ |
91934273 | 4330 | if (prologue_sal.end >= end_pc) |
4e463ff5 | 4331 | return 0; |
d54be744 | 4332 | |
634aa483 AC |
4333 | while (prologue_sal.end < end_pc) |
4334 | { | |
4335 | struct symtab_and_line sal; | |
4336 | ||
4337 | sal = find_pc_line (prologue_sal.end, 0); | |
4338 | if (sal.line == 0) | |
4339 | break; | |
4340 | /* Assume that a consecutive SAL for the same (or larger) | |
4341 | line mark the prologue -> body transition. */ | |
4342 | if (sal.line >= prologue_sal.line) | |
4343 | break; | |
edb3359d DJ |
4344 | |
4345 | /* The line number is smaller. Check that it's from the | |
4346 | same function, not something inlined. If it's inlined, | |
4347 | then there is no point comparing the line numbers. */ | |
4348 | bl = block_for_pc (prologue_sal.end); | |
4349 | while (bl) | |
4350 | { | |
4351 | if (block_inlined_p (bl)) | |
4352 | break; | |
4353 | if (BLOCK_FUNCTION (bl)) | |
4354 | { | |
4355 | bl = NULL; | |
4356 | break; | |
4357 | } | |
4358 | bl = BLOCK_SUPERBLOCK (bl); | |
4359 | } | |
4360 | if (bl != NULL) | |
4361 | break; | |
4362 | ||
634aa483 AC |
4363 | /* The case in which compiler's optimizer/scheduler has |
4364 | moved instructions into the prologue. We look ahead in | |
4365 | the function looking for address ranges whose | |
4366 | corresponding line number is less the first one that we | |
4367 | found for the function. This is more conservative then | |
4368 | refine_prologue_limit which scans a large number of SALs | |
c378eb4e | 4369 | looking for any in the prologue. */ |
634aa483 AC |
4370 | prologue_sal = sal; |
4371 | } | |
4372 | } | |
d54be744 DJ |
4373 | |
4374 | if (prologue_sal.end < end_pc) | |
4375 | /* Return the end of this line, or zero if we could not find a | |
4376 | line. */ | |
4377 | return prologue_sal.end; | |
4378 | else | |
4379 | /* Don't return END_PC, which is past the end of the function. */ | |
4380 | return prologue_sal.pc; | |
634aa483 | 4381 | } |
c906108c | 4382 | \f |
50641945 FN |
4383 | struct symtabs_and_lines |
4384 | decode_line_spec (char *string, int funfirstline) | |
4385 | { | |
4386 | struct symtabs_and_lines sals; | |
0378c332 | 4387 | struct symtab_and_line cursal; |
9af17804 | 4388 | |
50641945 | 4389 | if (string == 0) |
8a3fe4f8 | 4390 | error (_("Empty line specification.")); |
9af17804 | 4391 | |
c378eb4e MS |
4392 | /* We use whatever is set as the current source line. We do not try |
4393 | and get a default or it will recursively call us! */ | |
0378c332 | 4394 | cursal = get_current_source_symtab_and_line (); |
9af17804 | 4395 | |
50641945 | 4396 | sals = decode_line_1 (&string, funfirstline, |
0378c332 | 4397 | cursal.symtab, cursal.line, |
58438ac1 | 4398 | NULL); |
0378c332 | 4399 | |
50641945 | 4400 | if (*string) |
8a3fe4f8 | 4401 | error (_("Junk at end of line specification: %s"), string); |
50641945 FN |
4402 | return sals; |
4403 | } | |
c5aa993b | 4404 | |
51cc5b07 AC |
4405 | /* Track MAIN */ |
4406 | static char *name_of_main; | |
01f8c46d | 4407 | enum language language_of_main = language_unknown; |
51cc5b07 AC |
4408 | |
4409 | void | |
4410 | set_main_name (const char *name) | |
4411 | { | |
4412 | if (name_of_main != NULL) | |
4413 | { | |
4414 | xfree (name_of_main); | |
4415 | name_of_main = NULL; | |
01f8c46d | 4416 | language_of_main = language_unknown; |
51cc5b07 AC |
4417 | } |
4418 | if (name != NULL) | |
4419 | { | |
4420 | name_of_main = xstrdup (name); | |
01f8c46d | 4421 | language_of_main = language_unknown; |
51cc5b07 AC |
4422 | } |
4423 | } | |
4424 | ||
ea53e89f JB |
4425 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
4426 | accordingly. */ | |
4427 | ||
4428 | static void | |
4429 | find_main_name (void) | |
4430 | { | |
cd6c7346 | 4431 | const char *new_main_name; |
ea53e89f JB |
4432 | |
4433 | /* Try to see if the main procedure is in Ada. */ | |
4434 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
4435 | be to add a new method in the language vector, and call this | |
4436 | method for each language until one of them returns a non-empty | |
4437 | name. This would allow us to remove this hard-coded call to | |
4438 | an Ada function. It is not clear that this is a better approach | |
4439 | at this point, because all methods need to be written in a way | |
c378eb4e | 4440 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
4441 | important that a method does not return a wrong name for the main |
4442 | procedure if the main procedure is actually written in a different | |
4443 | language. It is easy to guaranty this with Ada, since we use a | |
4444 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 4445 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
4446 | be guarantied for languages such as C, for instance. This suggests |
4447 | that order of call for these methods becomes important, which means | |
4448 | a more complicated approach. */ | |
4449 | new_main_name = ada_main_name (); | |
4450 | if (new_main_name != NULL) | |
9af17804 | 4451 | { |
ea53e89f JB |
4452 | set_main_name (new_main_name); |
4453 | return; | |
4454 | } | |
4455 | ||
cd6c7346 PM |
4456 | new_main_name = pascal_main_name (); |
4457 | if (new_main_name != NULL) | |
9af17804 | 4458 | { |
cd6c7346 PM |
4459 | set_main_name (new_main_name); |
4460 | return; | |
4461 | } | |
4462 | ||
ea53e89f JB |
4463 | /* The languages above didn't identify the name of the main procedure. |
4464 | Fallback to "main". */ | |
4465 | set_main_name ("main"); | |
4466 | } | |
4467 | ||
51cc5b07 AC |
4468 | char * |
4469 | main_name (void) | |
4470 | { | |
ea53e89f JB |
4471 | if (name_of_main == NULL) |
4472 | find_main_name (); | |
4473 | ||
4474 | return name_of_main; | |
51cc5b07 AC |
4475 | } |
4476 | ||
ea53e89f JB |
4477 | /* Handle ``executable_changed'' events for the symtab module. */ |
4478 | ||
4479 | static void | |
781b42b0 | 4480 | symtab_observer_executable_changed (void) |
ea53e89f JB |
4481 | { |
4482 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
4483 | set_main_name (NULL); | |
4484 | } | |
51cc5b07 | 4485 | |
ed0616c6 VP |
4486 | /* Helper to expand_line_sal below. Appends new sal to SAL, |
4487 | initializing it from SYMTAB, LINENO and PC. */ | |
4488 | static void | |
4489 | append_expanded_sal (struct symtabs_and_lines *sal, | |
6c95b8df | 4490 | struct program_space *pspace, |
ed0616c6 VP |
4491 | struct symtab *symtab, |
4492 | int lineno, CORE_ADDR pc) | |
4493 | { | |
9af17804 DE |
4494 | sal->sals = xrealloc (sal->sals, |
4495 | sizeof (sal->sals[0]) | |
ed0616c6 VP |
4496 | * (sal->nelts + 1)); |
4497 | init_sal (sal->sals + sal->nelts); | |
6c95b8df | 4498 | sal->sals[sal->nelts].pspace = pspace; |
ed0616c6 VP |
4499 | sal->sals[sal->nelts].symtab = symtab; |
4500 | sal->sals[sal->nelts].section = NULL; | |
4501 | sal->sals[sal->nelts].end = 0; | |
9af17804 | 4502 | sal->sals[sal->nelts].line = lineno; |
ed0616c6 | 4503 | sal->sals[sal->nelts].pc = pc; |
9af17804 | 4504 | ++sal->nelts; |
ed0616c6 VP |
4505 | } |
4506 | ||
aad80b26 | 4507 | /* Helper to expand_line_sal below. Search in the symtabs for any |
3ffc00b8 JB |
4508 | linetable entry that exactly matches FULLNAME and LINENO and append |
4509 | them to RET. If FULLNAME is NULL or if a symtab has no full name, | |
4510 | use FILENAME and LINENO instead. If there is at least one match, | |
4511 | return 1; otherwise, return 0, and return the best choice in BEST_ITEM | |
4512 | and BEST_SYMTAB. */ | |
aad80b26 JG |
4513 | |
4514 | static int | |
3ffc00b8 | 4515 | append_exact_match_to_sals (char *filename, char *fullname, int lineno, |
aad80b26 JG |
4516 | struct symtabs_and_lines *ret, |
4517 | struct linetable_entry **best_item, | |
4518 | struct symtab **best_symtab) | |
4519 | { | |
6c95b8df | 4520 | struct program_space *pspace; |
aad80b26 JG |
4521 | struct objfile *objfile; |
4522 | struct symtab *symtab; | |
4523 | int exact = 0; | |
4524 | int j; | |
4525 | *best_item = 0; | |
4526 | *best_symtab = 0; | |
6c95b8df PA |
4527 | |
4528 | ALL_PSPACES (pspace) | |
4529 | ALL_PSPACE_SYMTABS (pspace, objfile, symtab) | |
aad80b26 | 4530 | { |
3ffc00b8 | 4531 | if (FILENAME_CMP (filename, symtab->filename) == 0) |
aad80b26 JG |
4532 | { |
4533 | struct linetable *l; | |
4534 | int len; | |
433759f7 | 4535 | |
3ffc00b8 JB |
4536 | if (fullname != NULL |
4537 | && symtab_to_fullname (symtab) != NULL | |
4538 | && FILENAME_CMP (fullname, symtab->fullname) != 0) | |
4539 | continue; | |
aad80b26 JG |
4540 | l = LINETABLE (symtab); |
4541 | if (!l) | |
4542 | continue; | |
4543 | len = l->nitems; | |
4544 | ||
4545 | for (j = 0; j < len; j++) | |
4546 | { | |
4547 | struct linetable_entry *item = &(l->item[j]); | |
4548 | ||
4549 | if (item->line == lineno) | |
4550 | { | |
4551 | exact = 1; | |
6c95b8df PA |
4552 | append_expanded_sal (ret, objfile->pspace, |
4553 | symtab, lineno, item->pc); | |
aad80b26 JG |
4554 | } |
4555 | else if (!exact && item->line > lineno | |
4556 | && (*best_item == NULL | |
4557 | || item->line < (*best_item)->line)) | |
4558 | { | |
4559 | *best_item = item; | |
4560 | *best_symtab = symtab; | |
4561 | } | |
4562 | } | |
4563 | } | |
4564 | } | |
4565 | return exact; | |
4566 | } | |
4567 | ||
6c95b8df PA |
4568 | /* Compute a set of all sals in all program spaces that correspond to |
4569 | same file and line as SAL and return those. If there are several | |
4570 | sals that belong to the same block, only one sal for the block is | |
4571 | included in results. */ | |
9af17804 | 4572 | |
ed0616c6 VP |
4573 | struct symtabs_and_lines |
4574 | expand_line_sal (struct symtab_and_line sal) | |
4575 | { | |
952a6d41 | 4576 | struct symtabs_and_lines ret; |
ed0616c6 VP |
4577 | int i, j; |
4578 | struct objfile *objfile; | |
ed0616c6 VP |
4579 | int lineno; |
4580 | int deleted = 0; | |
4581 | struct block **blocks = NULL; | |
4582 | int *filter; | |
6c95b8df | 4583 | struct cleanup *old_chain; |
ed0616c6 VP |
4584 | |
4585 | ret.nelts = 0; | |
4586 | ret.sals = NULL; | |
4587 | ||
6c95b8df | 4588 | /* Only expand sals that represent file.c:line. */ |
ed0616c6 VP |
4589 | if (sal.symtab == NULL || sal.line == 0 || sal.pc != 0) |
4590 | { | |
4591 | ret.sals = xmalloc (sizeof (struct symtab_and_line)); | |
4592 | ret.sals[0] = sal; | |
4593 | ret.nelts = 1; | |
4594 | return ret; | |
4595 | } | |
4596 | else | |
4597 | { | |
6c95b8df | 4598 | struct program_space *pspace; |
ed0616c6 VP |
4599 | struct linetable_entry *best_item = 0; |
4600 | struct symtab *best_symtab = 0; | |
4601 | int exact = 0; | |
6c95b8df | 4602 | char *match_filename; |
ed0616c6 VP |
4603 | |
4604 | lineno = sal.line; | |
6c95b8df | 4605 | match_filename = sal.symtab->filename; |
ed0616c6 | 4606 | |
9af17804 DE |
4607 | /* We need to find all symtabs for a file which name |
4608 | is described by sal. We cannot just directly | |
ed0616c6 | 4609 | iterate over symtabs, since a symtab might not be |
9af17804 | 4610 | yet created. We also cannot iterate over psymtabs, |
ed0616c6 VP |
4611 | calling PSYMTAB_TO_SYMTAB and working on that symtab, |
4612 | since PSYMTAB_TO_SYMTAB will return NULL for psymtab | |
9af17804 | 4613 | corresponding to an included file. Therefore, we do |
ed0616c6 VP |
4614 | first pass over psymtabs, reading in those with |
4615 | the right name. Then, we iterate over symtabs, knowing | |
4616 | that all symtabs we're interested in are loaded. */ | |
4617 | ||
6c95b8df PA |
4618 | old_chain = save_current_program_space (); |
4619 | ALL_PSPACES (pspace) | |
ccefe4c4 TT |
4620 | { |
4621 | set_current_program_space (pspace); | |
4622 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
ed0616c6 | 4623 | { |
ccefe4c4 TT |
4624 | if (objfile->sf) |
4625 | objfile->sf->qf->expand_symtabs_with_filename (objfile, | |
4626 | sal.symtab->filename); | |
ed0616c6 | 4627 | } |
ccefe4c4 | 4628 | } |
6c95b8df | 4629 | do_cleanups (old_chain); |
ed0616c6 | 4630 | |
aad80b26 JG |
4631 | /* Now search the symtab for exact matches and append them. If |
4632 | none is found, append the best_item and all its exact | |
4633 | matches. */ | |
3ffc00b8 JB |
4634 | symtab_to_fullname (sal.symtab); |
4635 | exact = append_exact_match_to_sals (sal.symtab->filename, | |
4636 | sal.symtab->fullname, lineno, | |
aad80b26 | 4637 | &ret, &best_item, &best_symtab); |
ed0616c6 | 4638 | if (!exact && best_item) |
3ffc00b8 JB |
4639 | append_exact_match_to_sals (best_symtab->filename, |
4640 | best_symtab->fullname, best_item->line, | |
aad80b26 | 4641 | &ret, &best_item, &best_symtab); |
ed0616c6 VP |
4642 | } |
4643 | ||
4644 | /* For optimized code, compiler can scatter one source line accross | |
4645 | disjoint ranges of PC values, even when no duplicate functions | |
4646 | or inline functions are involved. For example, 'for (;;)' inside | |
4647 | non-template non-inline non-ctor-or-dtor function can result | |
4648 | in two PC ranges. In this case, we don't want to set breakpoint | |
4649 | on first PC of each range. To filter such cases, we use containing | |
4650 | blocks -- for each PC found above we see if there are other PCs | |
9af17804 | 4651 | that are in the same block. If yes, the other PCs are filtered out. */ |
ed0616c6 | 4652 | |
6c95b8df | 4653 | old_chain = save_current_program_space (); |
db009c8a JB |
4654 | filter = alloca (ret.nelts * sizeof (int)); |
4655 | blocks = alloca (ret.nelts * sizeof (struct block *)); | |
ed0616c6 VP |
4656 | for (i = 0; i < ret.nelts; ++i) |
4657 | { | |
6c95b8df PA |
4658 | set_current_program_space (ret.sals[i].pspace); |
4659 | ||
ed0616c6 | 4660 | filter[i] = 1; |
6c95b8df PA |
4661 | blocks[i] = block_for_pc_sect (ret.sals[i].pc, ret.sals[i].section); |
4662 | ||
ed0616c6 | 4663 | } |
6c95b8df | 4664 | do_cleanups (old_chain); |
ed0616c6 VP |
4665 | |
4666 | for (i = 0; i < ret.nelts; ++i) | |
4667 | if (blocks[i] != NULL) | |
4668 | for (j = i+1; j < ret.nelts; ++j) | |
4669 | if (blocks[j] == blocks[i]) | |
4670 | { | |
4671 | filter[j] = 0; | |
4672 | ++deleted; | |
4673 | break; | |
4674 | } | |
9af17804 | 4675 | |
ed0616c6 | 4676 | { |
9af17804 | 4677 | struct symtab_and_line *final = |
ed0616c6 | 4678 | xmalloc (sizeof (struct symtab_and_line) * (ret.nelts-deleted)); |
9af17804 | 4679 | |
ed0616c6 VP |
4680 | for (i = 0, j = 0; i < ret.nelts; ++i) |
4681 | if (filter[i]) | |
4682 | final[j++] = ret.sals[i]; | |
9af17804 | 4683 | |
ed0616c6 VP |
4684 | ret.nelts -= deleted; |
4685 | xfree (ret.sals); | |
4686 | ret.sals = final; | |
4687 | } | |
4688 | ||
4689 | return ret; | |
4690 | } | |
4691 | ||
a6c727b2 DJ |
4692 | /* Return 1 if the supplied producer string matches the ARM RealView |
4693 | compiler (armcc). */ | |
4694 | ||
4695 | int | |
4696 | producer_is_realview (const char *producer) | |
4697 | { | |
4698 | static const char *const arm_idents[] = { | |
4699 | "ARM C Compiler, ADS", | |
4700 | "Thumb C Compiler, ADS", | |
4701 | "ARM C++ Compiler, ADS", | |
4702 | "Thumb C++ Compiler, ADS", | |
4703 | "ARM/Thumb C/C++ Compiler, RVCT", | |
4704 | "ARM C/C++ Compiler, RVCT" | |
4705 | }; | |
4706 | int i; | |
4707 | ||
4708 | if (producer == NULL) | |
4709 | return 0; | |
4710 | ||
4711 | for (i = 0; i < ARRAY_SIZE (arm_idents); i++) | |
4712 | if (strncmp (producer, arm_idents[i], strlen (arm_idents[i])) == 0) | |
4713 | return 1; | |
4714 | ||
4715 | return 0; | |
4716 | } | |
ed0616c6 | 4717 | |
c906108c | 4718 | void |
fba45db2 | 4719 | _initialize_symtab (void) |
c906108c | 4720 | { |
1bedd215 AC |
4721 | add_info ("variables", variables_info, _("\ |
4722 | All global and static variable names, or those matching REGEXP.")); | |
c906108c | 4723 | if (dbx_commands) |
1bedd215 AC |
4724 | add_com ("whereis", class_info, variables_info, _("\ |
4725 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
4726 | |
4727 | add_info ("functions", functions_info, | |
1bedd215 | 4728 | _("All function names, or those matching REGEXP.")); |
c906108c SS |
4729 | |
4730 | /* FIXME: This command has at least the following problems: | |
4731 | 1. It prints builtin types (in a very strange and confusing fashion). | |
4732 | 2. It doesn't print right, e.g. with | |
c5aa993b JM |
4733 | typedef struct foo *FOO |
4734 | type_print prints "FOO" when we want to make it (in this situation) | |
4735 | print "struct foo *". | |
c906108c SS |
4736 | I also think "ptype" or "whatis" is more likely to be useful (but if |
4737 | there is much disagreement "info types" can be fixed). */ | |
4738 | add_info ("types", types_info, | |
1bedd215 | 4739 | _("All type names, or those matching REGEXP.")); |
c906108c | 4740 | |
c906108c | 4741 | add_info ("sources", sources_info, |
1bedd215 | 4742 | _("Source files in the program.")); |
c906108c SS |
4743 | |
4744 | add_com ("rbreak", class_breakpoint, rbreak_command, | |
1bedd215 | 4745 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c SS |
4746 | |
4747 | if (xdb_commands) | |
4748 | { | |
1bedd215 AC |
4749 | add_com ("lf", class_info, sources_info, |
4750 | _("Source files in the program")); | |
4751 | add_com ("lg", class_info, variables_info, _("\ | |
4752 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
4753 | } |
4754 | ||
717d2f5a JB |
4755 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
4756 | multiple_symbols_modes, &multiple_symbols_mode, | |
4757 | _("\ | |
4758 | Set the debugger behavior when more than one symbol are possible matches\n\ | |
4759 | in an expression."), _("\ | |
4760 | Show how the debugger handles ambiguities in expressions."), _("\ | |
4761 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
4762 | NULL, NULL, &setlist, &showlist); | |
4763 | ||
ea53e89f | 4764 | observer_attach_executable_changed (symtab_observer_executable_changed); |
c906108c | 4765 | } |