Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c AC |
2 | |
3 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, | |
083ae935 DJ |
4 | 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 |
5 | 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 | |
11 | the Free Software Foundation; either version 2 of the License, or | |
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 JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include "symtab.h" | |
26 | #include "gdbtypes.h" | |
27 | #include "gdbcore.h" | |
28 | #include "frame.h" | |
29 | #include "target.h" | |
30 | #include "value.h" | |
31 | #include "symfile.h" | |
32 | #include "objfiles.h" | |
33 | #include "gdbcmd.h" | |
34 | #include "call-cmds.h" | |
88987551 | 35 | #include "gdb_regex.h" |
c906108c SS |
36 | #include "expression.h" |
37 | #include "language.h" | |
38 | #include "demangle.h" | |
39 | #include "inferior.h" | |
c5f0f3d0 | 40 | #include "linespec.h" |
0378c332 | 41 | #include "source.h" |
a7fdf62f | 42 | #include "filenames.h" /* for FILENAME_CMP */ |
c906108c | 43 | |
2de7ced7 DJ |
44 | #include "hashtab.h" |
45 | ||
04ea0df1 | 46 | #include "gdb_obstack.h" |
fe898f56 | 47 | #include "block.h" |
c906108c SS |
48 | |
49 | #include <sys/types.h> | |
50 | #include <fcntl.h> | |
51 | #include "gdb_string.h" | |
52 | #include "gdb_stat.h" | |
53 | #include <ctype.h> | |
015a42b4 | 54 | #include "cp-abi.h" |
c906108c | 55 | |
c906108c SS |
56 | /* Prototypes for local functions */ |
57 | ||
a14ed312 | 58 | static void completion_list_add_name (char *, char *, int, char *, char *); |
c906108c | 59 | |
a14ed312 | 60 | static void rbreak_command (char *, int); |
c906108c | 61 | |
a14ed312 | 62 | static void types_info (char *, int); |
c906108c | 63 | |
a14ed312 | 64 | static void functions_info (char *, int); |
c906108c | 65 | |
a14ed312 | 66 | static void variables_info (char *, int); |
c906108c | 67 | |
a14ed312 | 68 | static void sources_info (char *, int); |
c906108c | 69 | |
a14ed312 | 70 | static void output_source_filename (char *, int *); |
c906108c | 71 | |
a14ed312 | 72 | static int find_line_common (struct linetable *, int, int *); |
c906108c | 73 | |
50641945 FN |
74 | /* This one is used by linespec.c */ |
75 | ||
76 | char *operator_chars (char *p, char **end); | |
77 | ||
b37bcaa8 | 78 | static struct partial_symbol *lookup_partial_symbol (struct partial_symtab *, |
3d4e8fd2 | 79 | const char *, |
b37bcaa8 KB |
80 | const char *, int, |
81 | namespace_enum); | |
c906108c | 82 | |
3121eff0 DJ |
83 | static struct symbol *lookup_symbol_aux (const char *name, |
84 | const char *mangled_name, | |
85 | const struct block *block, | |
86 | const namespace_enum namespace, | |
87 | int *is_a_field_of_this, | |
88 | struct symtab **symtab); | |
fba7f19c | 89 | |
e4051eeb DC |
90 | static |
91 | struct symbol *lookup_symbol_aux_local (const char *name, | |
92 | const char *mangled_name, | |
93 | const struct block *block, | |
94 | const namespace_enum namespace, | |
95 | struct symtab **symtab, | |
96 | const struct block **static_block); | |
8155455b | 97 | |
f61e8913 DC |
98 | static |
99 | struct symbol *lookup_symbol_aux_block (const char *name, | |
100 | const char *mangled_name, | |
101 | const struct block *block, | |
102 | const namespace_enum namespace, | |
103 | struct symtab **symtab); | |
104 | ||
8155455b DC |
105 | static |
106 | struct symbol *lookup_symbol_aux_symtabs (int block_index, | |
107 | const char *name, | |
108 | const char *mangled_name, | |
109 | const namespace_enum namespace, | |
110 | struct symtab **symtab); | |
111 | ||
112 | static | |
113 | struct symbol *lookup_symbol_aux_psymtabs (int block_index, | |
114 | const char *name, | |
115 | const char *mangled_name, | |
116 | const namespace_enum namespace, | |
117 | struct symtab **symtab); | |
fba7f19c | 118 | |
406bc4de DC |
119 | static |
120 | struct symbol *lookup_symbol_aux_minsyms (const char *name, | |
121 | const char *mangled_name, | |
122 | const namespace_enum namespace, | |
123 | int *is_a_field_of_this, | |
e45febe2 | 124 | struct symtab **symtab); |
406bc4de | 125 | |
a14ed312 | 126 | static struct symbol *find_active_alias (struct symbol *sym, CORE_ADDR addr); |
c906108c SS |
127 | |
128 | /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */ | |
129 | /* Signals the presence of objects compiled by HP compilers */ | |
130 | int hp_som_som_object_present = 0; | |
131 | ||
a14ed312 | 132 | static void fixup_section (struct general_symbol_info *, struct objfile *); |
c906108c | 133 | |
a14ed312 | 134 | static int file_matches (char *, char **, int); |
c906108c | 135 | |
a14ed312 KB |
136 | static void print_symbol_info (namespace_enum, |
137 | struct symtab *, struct symbol *, int, char *); | |
c906108c | 138 | |
a14ed312 | 139 | static void print_msymbol_info (struct minimal_symbol *); |
c906108c | 140 | |
a14ed312 | 141 | static void symtab_symbol_info (char *, namespace_enum, int); |
c906108c | 142 | |
a14ed312 | 143 | static void overload_list_add_symbol (struct symbol *sym, char *oload_name); |
392a587b | 144 | |
a14ed312 | 145 | void _initialize_symtab (void); |
c906108c SS |
146 | |
147 | /* */ | |
148 | ||
149 | /* The single non-language-specific builtin type */ | |
150 | struct type *builtin_type_error; | |
151 | ||
152 | /* Block in which the most recently searched-for symbol was found. | |
153 | Might be better to make this a parameter to lookup_symbol and | |
154 | value_of_this. */ | |
155 | ||
156 | const struct block *block_found; | |
157 | ||
c906108c SS |
158 | /* Check for a symtab of a specific name; first in symtabs, then in |
159 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
160 | in the symtab filename will also work. */ | |
161 | ||
1b15f1fa TT |
162 | struct symtab * |
163 | lookup_symtab (const char *name) | |
c906108c SS |
164 | { |
165 | register struct symtab *s; | |
166 | register struct partial_symtab *ps; | |
c906108c | 167 | register struct objfile *objfile; |
58d370e0 | 168 | char *real_path = NULL; |
f079a2e5 | 169 | char *full_path = NULL; |
58d370e0 TT |
170 | |
171 | /* Here we are interested in canonicalizing an absolute path, not | |
172 | absolutizing a relative path. */ | |
173 | if (IS_ABSOLUTE_PATH (name)) | |
f079a2e5 JB |
174 | { |
175 | full_path = xfullpath (name); | |
176 | make_cleanup (xfree, full_path); | |
177 | real_path = gdb_realpath (name); | |
178 | make_cleanup (xfree, real_path); | |
179 | } | |
c906108c | 180 | |
c5aa993b | 181 | got_symtab: |
c906108c SS |
182 | |
183 | /* First, search for an exact match */ | |
184 | ||
185 | ALL_SYMTABS (objfile, s) | |
58d370e0 | 186 | { |
a7fdf62f | 187 | if (FILENAME_CMP (name, s->filename) == 0) |
58d370e0 | 188 | { |
58d370e0 TT |
189 | return s; |
190 | } | |
f079a2e5 | 191 | |
58d370e0 TT |
192 | /* If the user gave us an absolute path, try to find the file in |
193 | this symtab and use its absolute path. */ | |
f079a2e5 JB |
194 | |
195 | if (full_path != NULL) | |
196 | { | |
197 | const char *fp = symtab_to_filename (s); | |
198 | if (FILENAME_CMP (full_path, fp) == 0) | |
199 | { | |
200 | return s; | |
201 | } | |
202 | } | |
203 | ||
58d370e0 TT |
204 | if (real_path != NULL) |
205 | { | |
25f1b008 | 206 | char *rp = gdb_realpath (symtab_to_filename (s)); |
f079a2e5 | 207 | make_cleanup (xfree, rp); |
58d370e0 TT |
208 | if (FILENAME_CMP (real_path, rp) == 0) |
209 | { | |
58d370e0 TT |
210 | return s; |
211 | } | |
212 | } | |
213 | } | |
214 | ||
c906108c SS |
215 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ |
216 | ||
caadab2c | 217 | if (lbasename (name) == name) |
c906108c | 218 | ALL_SYMTABS (objfile, s) |
c5aa993b | 219 | { |
31889e00 | 220 | if (FILENAME_CMP (lbasename (s->filename), name) == 0) |
c5aa993b JM |
221 | return s; |
222 | } | |
c906108c SS |
223 | |
224 | /* Same search rules as above apply here, but now we look thru the | |
225 | psymtabs. */ | |
226 | ||
227 | ps = lookup_partial_symtab (name); | |
228 | if (!ps) | |
229 | return (NULL); | |
230 | ||
c5aa993b | 231 | if (ps->readin) |
c906108c | 232 | error ("Internal: readin %s pst for `%s' found when no symtab found.", |
c5aa993b | 233 | ps->filename, name); |
c906108c SS |
234 | |
235 | s = PSYMTAB_TO_SYMTAB (ps); | |
236 | ||
237 | if (s) | |
238 | return s; | |
239 | ||
240 | /* At this point, we have located the psymtab for this file, but | |
241 | the conversion to a symtab has failed. This usually happens | |
242 | when we are looking up an include file. In this case, | |
243 | PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has | |
244 | been created. So, we need to run through the symtabs again in | |
245 | order to find the file. | |
246 | XXX - This is a crock, and should be fixed inside of the the | |
247 | symbol parsing routines. */ | |
248 | goto got_symtab; | |
249 | } | |
250 | ||
c906108c SS |
251 | /* Lookup the partial symbol table of a source file named NAME. |
252 | *If* there is no '/' in the name, a match after a '/' | |
253 | in the psymtab filename will also work. */ | |
254 | ||
255 | struct partial_symtab * | |
1f8cc6db | 256 | lookup_partial_symtab (const char *name) |
c906108c SS |
257 | { |
258 | register struct partial_symtab *pst; | |
259 | register struct objfile *objfile; | |
f079a2e5 | 260 | char *full_path = NULL; |
58d370e0 TT |
261 | char *real_path = NULL; |
262 | ||
263 | /* Here we are interested in canonicalizing an absolute path, not | |
264 | absolutizing a relative path. */ | |
265 | if (IS_ABSOLUTE_PATH (name)) | |
f079a2e5 JB |
266 | { |
267 | full_path = xfullpath (name); | |
268 | make_cleanup (xfree, full_path); | |
269 | real_path = gdb_realpath (name); | |
270 | make_cleanup (xfree, real_path); | |
271 | } | |
c5aa993b | 272 | |
c906108c | 273 | ALL_PSYMTABS (objfile, pst) |
c5aa993b | 274 | { |
a7fdf62f | 275 | if (FILENAME_CMP (name, pst->filename) == 0) |
c5aa993b JM |
276 | { |
277 | return (pst); | |
278 | } | |
f079a2e5 | 279 | |
58d370e0 TT |
280 | /* If the user gave us an absolute path, try to find the file in |
281 | this symtab and use its absolute path. */ | |
f079a2e5 | 282 | if (full_path != NULL) |
58d370e0 TT |
283 | { |
284 | if (pst->fullname == NULL) | |
285 | source_full_path_of (pst->filename, &pst->fullname); | |
286 | if (pst->fullname != NULL | |
f079a2e5 | 287 | && FILENAME_CMP (full_path, pst->fullname) == 0) |
58d370e0 | 288 | { |
58d370e0 TT |
289 | return pst; |
290 | } | |
291 | } | |
c906108c | 292 | |
f079a2e5 JB |
293 | if (real_path != NULL) |
294 | { | |
295 | char *rp = NULL; | |
296 | if (pst->fullname == NULL) | |
297 | source_full_path_of (pst->filename, &pst->fullname); | |
298 | if (pst->fullname != NULL) | |
299 | { | |
300 | rp = gdb_realpath (pst->fullname); | |
301 | make_cleanup (xfree, rp); | |
302 | } | |
303 | if (rp != NULL && FILENAME_CMP (real_path, rp) == 0) | |
304 | { | |
305 | return pst; | |
306 | } | |
307 | } | |
308 | } | |
58d370e0 | 309 | |
c906108c SS |
310 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ |
311 | ||
caadab2c | 312 | if (lbasename (name) == name) |
c906108c | 313 | ALL_PSYMTABS (objfile, pst) |
c5aa993b | 314 | { |
31889e00 | 315 | if (FILENAME_CMP (lbasename (pst->filename), name) == 0) |
c5aa993b JM |
316 | return (pst); |
317 | } | |
c906108c SS |
318 | |
319 | return (NULL); | |
320 | } | |
321 | \f | |
322 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
323 | full method name, which consist of the class name (from T), the unadorned | |
324 | method name from METHOD_ID, and the signature for the specific overload, | |
325 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ | |
326 | ||
327 | char * | |
fba45db2 | 328 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
329 | { |
330 | int mangled_name_len; | |
331 | char *mangled_name; | |
332 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
333 | struct fn_field *method = &f[signature_id]; | |
334 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); | |
335 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); | |
336 | char *newname = type_name_no_tag (type); | |
337 | ||
338 | /* Does the form of physname indicate that it is the full mangled name | |
339 | of a constructor (not just the args)? */ | |
340 | int is_full_physname_constructor; | |
341 | ||
342 | int is_constructor; | |
015a42b4 | 343 | int is_destructor = is_destructor_name (physname); |
c906108c SS |
344 | /* Need a new type prefix. */ |
345 | char *const_prefix = method->is_const ? "C" : ""; | |
346 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
347 | char buf[20]; | |
348 | int len = (newname == NULL ? 0 : strlen (newname)); | |
349 | ||
43630227 PS |
350 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
351 | or an operator name. */ | |
352 | if ((physname[0] == '_' && physname[1] == 'Z') | |
353 | || is_operator_name (field_name)) | |
235d1e03 EZ |
354 | return xstrdup (physname); |
355 | ||
015a42b4 | 356 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c SS |
357 | |
358 | is_constructor = | |
c5aa993b | 359 | is_full_physname_constructor || (newname && STREQ (field_name, newname)); |
c906108c SS |
360 | |
361 | if (!is_destructor) | |
c5aa993b | 362 | is_destructor = (strncmp (physname, "__dt", 4) == 0); |
c906108c SS |
363 | |
364 | if (is_destructor || is_full_physname_constructor) | |
365 | { | |
c5aa993b JM |
366 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
367 | strcpy (mangled_name, physname); | |
c906108c SS |
368 | return mangled_name; |
369 | } | |
370 | ||
371 | if (len == 0) | |
372 | { | |
373 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
374 | } | |
375 | else if (physname[0] == 't' || physname[0] == 'Q') | |
376 | { | |
377 | /* The physname for template and qualified methods already includes | |
c5aa993b | 378 | the class name. */ |
c906108c SS |
379 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
380 | newname = NULL; | |
381 | len = 0; | |
382 | } | |
383 | else | |
384 | { | |
385 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
386 | } | |
387 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 388 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 389 | |
c906108c | 390 | { |
c5aa993b | 391 | mangled_name = (char *) xmalloc (mangled_name_len); |
c906108c SS |
392 | if (is_constructor) |
393 | mangled_name[0] = '\0'; | |
394 | else | |
395 | strcpy (mangled_name, field_name); | |
396 | } | |
397 | strcat (mangled_name, buf); | |
398 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
399 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c5aa993b | 400 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
401 | if (newname != NULL) |
402 | strcat (mangled_name, newname); | |
403 | ||
404 | strcat (mangled_name, physname); | |
405 | return (mangled_name); | |
406 | } | |
12af6855 JB |
407 | |
408 | \f | |
89aad1f9 EZ |
409 | /* Initialize the language dependent portion of a symbol |
410 | depending upon the language for the symbol. */ | |
411 | void | |
412 | symbol_init_language_specific (struct general_symbol_info *gsymbol, | |
413 | enum language language) | |
414 | { | |
415 | gsymbol->language = language; | |
416 | if (gsymbol->language == language_cplus | |
5784d15e AF |
417 | || gsymbol->language == language_java |
418 | || gsymbol->language == language_objc) | |
89aad1f9 EZ |
419 | { |
420 | gsymbol->language_specific.cplus_specific.demangled_name = NULL; | |
421 | } | |
89aad1f9 EZ |
422 | else |
423 | { | |
424 | memset (&gsymbol->language_specific, 0, | |
425 | sizeof (gsymbol->language_specific)); | |
426 | } | |
427 | } | |
428 | ||
2de7ced7 DJ |
429 | /* Functions to initialize a symbol's mangled name. */ |
430 | ||
431 | /* Create the hash table used for demangled names. Each hash entry is | |
432 | a pair of strings; one for the mangled name and one for the demangled | |
433 | name. The entry is hashed via just the mangled name. */ | |
434 | ||
435 | static void | |
436 | create_demangled_names_hash (struct objfile *objfile) | |
437 | { | |
438 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
439 | The hash table code will round this up to the next prime number. | |
440 | Choosing a much larger table size wastes memory, and saves only about | |
441 | 1% in symbol reading. */ | |
442 | ||
443 | objfile->demangled_names_hash = htab_create_alloc_ex | |
444 | (256, htab_hash_string, (int (*) (const void *, const void *)) streq, | |
445 | NULL, objfile->md, xmcalloc, xmfree); | |
446 | } | |
12af6855 | 447 | |
2de7ced7 | 448 | /* Try to determine the demangled name for a symbol, based on the |
12af6855 JB |
449 | language of that symbol. If the language is set to language_auto, |
450 | it will attempt to find any demangling algorithm that works and | |
2de7ced7 DJ |
451 | then set the language appropriately. The returned name is allocated |
452 | by the demangler and should be xfree'd. */ | |
12af6855 | 453 | |
2de7ced7 DJ |
454 | static char * |
455 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, | |
456 | const char *mangled) | |
12af6855 | 457 | { |
12af6855 JB |
458 | char *demangled = NULL; |
459 | ||
460 | if (gsymbol->language == language_unknown) | |
461 | gsymbol->language = language_auto; | |
462 | if (gsymbol->language == language_cplus | |
463 | || gsymbol->language == language_auto) | |
464 | { | |
465 | demangled = | |
2de7ced7 | 466 | cplus_demangle (mangled, DMGL_PARAMS | DMGL_ANSI); |
12af6855 | 467 | if (demangled != NULL) |
2de7ced7 DJ |
468 | { |
469 | gsymbol->language = language_cplus; | |
470 | return demangled; | |
471 | } | |
12af6855 JB |
472 | } |
473 | if (gsymbol->language == language_java) | |
474 | { | |
475 | demangled = | |
2de7ced7 | 476 | cplus_demangle (mangled, |
12af6855 JB |
477 | DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); |
478 | if (demangled != NULL) | |
2de7ced7 DJ |
479 | { |
480 | gsymbol->language = language_java; | |
481 | return demangled; | |
482 | } | |
483 | } | |
484 | return NULL; | |
485 | } | |
486 | ||
487 | /* Set both the mangled and demangled (if any) names for GSYMBOL based on | |
488 | NAME and LEN. The hash table corresponding to OBJFILE is used, and the | |
489 | memory comes from that objfile's symbol_obstack. NAME is copied, so the | |
490 | pointer can be discarded after calling this function. */ | |
491 | ||
492 | void | |
493 | symbol_set_names (struct general_symbol_info *gsymbol, | |
494 | const char *name, int len, struct objfile *objfile) | |
495 | { | |
496 | char **slot; | |
497 | const char *tmpname; | |
498 | ||
499 | if (objfile->demangled_names_hash == NULL) | |
500 | create_demangled_names_hash (objfile); | |
501 | ||
502 | /* The stabs reader generally provides names that are not NULL-terminated; | |
503 | most of the other readers don't do this, so we can just use the given | |
504 | copy. */ | |
505 | if (name[len] != 0) | |
506 | { | |
507 | char *alloc_name = alloca (len + 1); | |
508 | memcpy (alloc_name, name, len); | |
509 | alloc_name[len] = 0; | |
510 | tmpname = alloc_name; | |
511 | } | |
512 | else | |
513 | tmpname = name; | |
514 | ||
515 | slot = (char **) htab_find_slot (objfile->demangled_names_hash, tmpname, INSERT); | |
516 | ||
517 | /* If this name is not in the hash table, add it. */ | |
518 | if (*slot == NULL) | |
519 | { | |
520 | char *demangled_name = symbol_find_demangled_name (gsymbol, tmpname); | |
521 | int demangled_len = demangled_name ? strlen (demangled_name) : 0; | |
522 | ||
523 | /* If there is a demangled name, place it right after the mangled name. | |
524 | Otherwise, just place a second zero byte after the end of the mangled | |
525 | name. */ | |
526 | *slot = obstack_alloc (&objfile->symbol_obstack, | |
527 | len + demangled_len + 2); | |
528 | memcpy (*slot, tmpname, len + 1); | |
529 | if (demangled_name) | |
530 | { | |
531 | memcpy (*slot + len + 1, demangled_name, demangled_len + 1); | |
532 | xfree (demangled_name); | |
533 | } | |
534 | else | |
535 | (*slot)[len + 1] = 0; | |
536 | } | |
537 | ||
538 | gsymbol->name = *slot; | |
539 | if ((*slot)[len + 1]) | |
540 | gsymbol->language_specific.cplus_specific.demangled_name | |
541 | = &(*slot)[len + 1]; | |
542 | else | |
543 | gsymbol->language_specific.cplus_specific.demangled_name = NULL; | |
544 | } | |
545 | ||
546 | /* Initialize the demangled name of GSYMBOL if possible. Any required space | |
547 | to store the name is obtained from the specified obstack. The function | |
548 | symbol_set_names, above, should be used instead where possible for more | |
549 | efficient memory usage. */ | |
550 | ||
551 | void | |
552 | symbol_init_demangled_name (struct general_symbol_info *gsymbol, | |
553 | struct obstack *obstack) | |
554 | { | |
555 | char *mangled = gsymbol->name; | |
556 | char *demangled = NULL; | |
557 | ||
558 | demangled = symbol_find_demangled_name (gsymbol, mangled); | |
559 | if (gsymbol->language == language_cplus | |
560 | || gsymbol->language == language_java) | |
561 | { | |
562 | if (demangled) | |
563 | { | |
564 | gsymbol->language_specific.cplus_specific.demangled_name | |
565 | = obsavestring (demangled, strlen (demangled), obstack); | |
566 | xfree (demangled); | |
567 | } | |
12af6855 | 568 | else |
2de7ced7 DJ |
569 | gsymbol->language_specific.cplus_specific.demangled_name = NULL; |
570 | } | |
571 | else | |
572 | { | |
573 | /* Unknown language; just clean up quietly. */ | |
574 | if (demangled) | |
575 | xfree (demangled); | |
12af6855 | 576 | } |
12af6855 JB |
577 | } |
578 | ||
22abf04a DC |
579 | /* Return the source code name of a symbol. In languages where |
580 | demangling is necessary, this is the demangled name. */ | |
581 | ||
582 | char * | |
583 | symbol_natural_name (const struct general_symbol_info *gsymbol) | |
584 | { | |
585 | if ((gsymbol->language == language_cplus | |
586 | || gsymbol->language == language_java | |
587 | || gsymbol->language == language_objc) | |
588 | && (gsymbol->language_specific.cplus_specific.demangled_name != NULL)) | |
589 | { | |
590 | return gsymbol->language_specific.cplus_specific.demangled_name; | |
591 | } | |
592 | else | |
593 | { | |
594 | return gsymbol->name; | |
595 | } | |
596 | } | |
597 | ||
9cc0d196 EZ |
598 | /* Return the demangled name for a symbol based on the language for |
599 | that symbol. If no demangled name exists, return NULL. */ | |
600 | char * | |
601 | symbol_demangled_name (struct general_symbol_info *gsymbol) | |
602 | { | |
603 | if (gsymbol->language == language_cplus | |
5784d15e AF |
604 | || gsymbol->language == language_java |
605 | || gsymbol->language == language_objc) | |
9cc0d196 | 606 | return gsymbol->language_specific.cplus_specific.demangled_name; |
12af6855 | 607 | |
9cc0d196 EZ |
608 | else |
609 | return NULL; | |
9cc0d196 | 610 | } |
fe39c653 EZ |
611 | |
612 | /* Initialize the structure fields to zero values. */ | |
613 | void | |
614 | init_sal (struct symtab_and_line *sal) | |
615 | { | |
616 | sal->symtab = 0; | |
617 | sal->section = 0; | |
618 | sal->line = 0; | |
619 | sal->pc = 0; | |
620 | sal->end = 0; | |
621 | } | |
c906108c SS |
622 | \f |
623 | ||
c5aa993b | 624 | |
c906108c SS |
625 | /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */ |
626 | ||
627 | struct partial_symtab * | |
fba45db2 | 628 | find_pc_sect_psymtab (CORE_ADDR pc, asection *section) |
c906108c SS |
629 | { |
630 | register struct partial_symtab *pst; | |
631 | register struct objfile *objfile; | |
8a48e967 DJ |
632 | struct minimal_symbol *msymbol; |
633 | ||
634 | /* If we know that this is not a text address, return failure. This is | |
635 | necessary because we loop based on texthigh and textlow, which do | |
636 | not include the data ranges. */ | |
637 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
638 | if (msymbol | |
639 | && (msymbol->type == mst_data | |
640 | || msymbol->type == mst_bss | |
641 | || msymbol->type == mst_abs | |
642 | || msymbol->type == mst_file_data | |
643 | || msymbol->type == mst_file_bss)) | |
644 | return NULL; | |
c906108c SS |
645 | |
646 | ALL_PSYMTABS (objfile, pst) | |
c5aa993b | 647 | { |
c5aa993b | 648 | if (pc >= pst->textlow && pc < pst->texthigh) |
c5aa993b | 649 | { |
c5aa993b JM |
650 | struct partial_symtab *tpst; |
651 | ||
652 | /* An objfile that has its functions reordered might have | |
653 | many partial symbol tables containing the PC, but | |
654 | we want the partial symbol table that contains the | |
655 | function containing the PC. */ | |
656 | if (!(objfile->flags & OBJF_REORDERED) && | |
657 | section == 0) /* can't validate section this way */ | |
658 | return (pst); | |
659 | ||
c5aa993b JM |
660 | if (msymbol == NULL) |
661 | return (pst); | |
662 | ||
663 | for (tpst = pst; tpst != NULL; tpst = tpst->next) | |
664 | { | |
c5aa993b | 665 | if (pc >= tpst->textlow && pc < tpst->texthigh) |
c5aa993b JM |
666 | { |
667 | struct partial_symbol *p; | |
c906108c | 668 | |
c5aa993b JM |
669 | p = find_pc_sect_psymbol (tpst, pc, section); |
670 | if (p != NULL | |
671 | && SYMBOL_VALUE_ADDRESS (p) | |
672 | == SYMBOL_VALUE_ADDRESS (msymbol)) | |
673 | return (tpst); | |
674 | } | |
675 | } | |
676 | return (pst); | |
677 | } | |
678 | } | |
c906108c SS |
679 | return (NULL); |
680 | } | |
681 | ||
682 | /* Find which partial symtab contains PC. Return 0 if none. | |
683 | Backward compatibility, no section */ | |
684 | ||
685 | struct partial_symtab * | |
fba45db2 | 686 | find_pc_psymtab (CORE_ADDR pc) |
c906108c SS |
687 | { |
688 | return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc)); | |
689 | } | |
690 | ||
691 | /* Find which partial symbol within a psymtab matches PC and SECTION. | |
692 | Return 0 if none. Check all psymtabs if PSYMTAB is 0. */ | |
693 | ||
694 | struct partial_symbol * | |
fba45db2 KB |
695 | find_pc_sect_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc, |
696 | asection *section) | |
c906108c SS |
697 | { |
698 | struct partial_symbol *best = NULL, *p, **pp; | |
699 | CORE_ADDR best_pc; | |
c5aa993b | 700 | |
c906108c SS |
701 | if (!psymtab) |
702 | psymtab = find_pc_sect_psymtab (pc, section); | |
703 | if (!psymtab) | |
704 | return 0; | |
705 | ||
706 | /* Cope with programs that start at address 0 */ | |
707 | best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0; | |
708 | ||
709 | /* Search the global symbols as well as the static symbols, so that | |
710 | find_pc_partial_function doesn't use a minimal symbol and thus | |
711 | cache a bad endaddr. */ | |
712 | for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset; | |
c5aa993b JM |
713 | (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset) |
714 | < psymtab->n_global_syms); | |
c906108c SS |
715 | pp++) |
716 | { | |
717 | p = *pp; | |
718 | if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE | |
719 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
720 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
721 | && (SYMBOL_VALUE_ADDRESS (p) > best_pc | |
722 | || (psymtab->textlow == 0 | |
723 | && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0))) | |
724 | { | |
c5aa993b | 725 | if (section) /* match on a specific section */ |
c906108c SS |
726 | { |
727 | fixup_psymbol_section (p, psymtab->objfile); | |
728 | if (SYMBOL_BFD_SECTION (p) != section) | |
729 | continue; | |
730 | } | |
731 | best_pc = SYMBOL_VALUE_ADDRESS (p); | |
732 | best = p; | |
733 | } | |
734 | } | |
735 | ||
736 | for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset; | |
c5aa993b JM |
737 | (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset) |
738 | < psymtab->n_static_syms); | |
c906108c SS |
739 | pp++) |
740 | { | |
741 | p = *pp; | |
742 | if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE | |
743 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
744 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
745 | && (SYMBOL_VALUE_ADDRESS (p) > best_pc | |
c5aa993b | 746 | || (psymtab->textlow == 0 |
c906108c SS |
747 | && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0))) |
748 | { | |
c5aa993b | 749 | if (section) /* match on a specific section */ |
c906108c SS |
750 | { |
751 | fixup_psymbol_section (p, psymtab->objfile); | |
752 | if (SYMBOL_BFD_SECTION (p) != section) | |
753 | continue; | |
754 | } | |
755 | best_pc = SYMBOL_VALUE_ADDRESS (p); | |
756 | best = p; | |
757 | } | |
758 | } | |
759 | ||
760 | return best; | |
761 | } | |
762 | ||
763 | /* Find which partial symbol within a psymtab matches PC. Return 0 if none. | |
764 | Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */ | |
765 | ||
766 | struct partial_symbol * | |
fba45db2 | 767 | find_pc_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc) |
c906108c SS |
768 | { |
769 | return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc)); | |
770 | } | |
771 | \f | |
772 | /* Debug symbols usually don't have section information. We need to dig that | |
773 | out of the minimal symbols and stash that in the debug symbol. */ | |
774 | ||
775 | static void | |
fba45db2 | 776 | fixup_section (struct general_symbol_info *ginfo, struct objfile *objfile) |
c906108c SS |
777 | { |
778 | struct minimal_symbol *msym; | |
779 | msym = lookup_minimal_symbol (ginfo->name, NULL, objfile); | |
780 | ||
781 | if (msym) | |
7a78d0ee KB |
782 | { |
783 | ginfo->bfd_section = SYMBOL_BFD_SECTION (msym); | |
784 | ginfo->section = SYMBOL_SECTION (msym); | |
785 | } | |
c906108c SS |
786 | } |
787 | ||
788 | struct symbol * | |
fba45db2 | 789 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c SS |
790 | { |
791 | if (!sym) | |
792 | return NULL; | |
793 | ||
794 | if (SYMBOL_BFD_SECTION (sym)) | |
795 | return sym; | |
796 | ||
797 | fixup_section (&sym->ginfo, objfile); | |
798 | ||
799 | return sym; | |
800 | } | |
801 | ||
7a78d0ee | 802 | struct partial_symbol * |
fba45db2 | 803 | fixup_psymbol_section (struct partial_symbol *psym, struct objfile *objfile) |
c906108c SS |
804 | { |
805 | if (!psym) | |
806 | return NULL; | |
807 | ||
808 | if (SYMBOL_BFD_SECTION (psym)) | |
809 | return psym; | |
810 | ||
811 | fixup_section (&psym->ginfo, objfile); | |
812 | ||
813 | return psym; | |
814 | } | |
815 | ||
816 | /* Find the definition for a specified symbol name NAME | |
817 | in namespace NAMESPACE, visible from lexical block BLOCK. | |
818 | Returns the struct symbol pointer, or zero if no symbol is found. | |
819 | If SYMTAB is non-NULL, store the symbol table in which the | |
820 | symbol was found there, or NULL if not found. | |
821 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if | |
822 | NAME is a field of the current implied argument `this'. If so set | |
823 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. | |
824 | BLOCK_FOUND is set to the block in which NAME is found (in the case of | |
825 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
826 | ||
827 | /* This function has a bunch of loops in it and it would seem to be | |
828 | attractive to put in some QUIT's (though I'm not really sure | |
829 | whether it can run long enough to be really important). But there | |
830 | are a few calls for which it would appear to be bad news to quit | |
7ca9f392 AC |
831 | out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c. (Note |
832 | that there is C++ code below which can error(), but that probably | |
833 | doesn't affect these calls since they are looking for a known | |
834 | variable and thus can probably assume it will never hit the C++ | |
835 | code). */ | |
c906108c SS |
836 | |
837 | struct symbol * | |
fba7f19c | 838 | lookup_symbol (const char *name, const struct block *block, |
fba45db2 KB |
839 | const namespace_enum namespace, int *is_a_field_of_this, |
840 | struct symtab **symtab) | |
c906108c | 841 | { |
729051e6 DJ |
842 | char *demangled_name = NULL; |
843 | const char *modified_name = NULL; | |
3121eff0 | 844 | const char *mangled_name = NULL; |
fba7f19c EZ |
845 | int needtofreename = 0; |
846 | struct symbol *returnval; | |
c906108c | 847 | |
729051e6 DJ |
848 | modified_name = name; |
849 | ||
850 | /* If we are using C++ language, demangle the name before doing a lookup, so | |
851 | we can always binary search. */ | |
852 | if (current_language->la_language == language_cplus) | |
853 | { | |
854 | demangled_name = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
855 | if (demangled_name) | |
856 | { | |
857 | mangled_name = name; | |
858 | modified_name = demangled_name; | |
859 | needtofreename = 1; | |
860 | } | |
861 | } | |
862 | ||
63872f9d JG |
863 | if (case_sensitivity == case_sensitive_off) |
864 | { | |
865 | char *copy; | |
866 | int len, i; | |
867 | ||
868 | len = strlen (name); | |
869 | copy = (char *) alloca (len + 1); | |
870 | for (i= 0; i < len; i++) | |
871 | copy[i] = tolower (name[i]); | |
872 | copy[len] = 0; | |
fba7f19c | 873 | modified_name = copy; |
63872f9d | 874 | } |
fba7f19c | 875 | |
3121eff0 DJ |
876 | returnval = lookup_symbol_aux (modified_name, mangled_name, block, |
877 | namespace, is_a_field_of_this, symtab); | |
fba7f19c | 878 | if (needtofreename) |
729051e6 | 879 | xfree (demangled_name); |
fba7f19c EZ |
880 | |
881 | return returnval; | |
882 | } | |
883 | ||
884 | static struct symbol * | |
3121eff0 DJ |
885 | lookup_symbol_aux (const char *name, const char *mangled_name, |
886 | const struct block *block, const namespace_enum namespace, | |
887 | int *is_a_field_of_this, struct symtab **symtab) | |
fba7f19c | 888 | { |
8155455b | 889 | struct symbol *sym; |
e4051eeb | 890 | const struct block *static_block; |
406bc4de | 891 | |
e4051eeb DC |
892 | /* Search specified block and its superiors. Don't search |
893 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 894 | |
8155455b | 895 | sym = lookup_symbol_aux_local (name, mangled_name, block, namespace, |
e4051eeb | 896 | symtab, &static_block); |
8155455b DC |
897 | if (sym != NULL) |
898 | return sym; | |
c906108c | 899 | |
8155455b DC |
900 | #if 0 |
901 | /* NOTE: carlton/2002-11-05: At the time that this code was | |
902 | #ifdeffed out, the value of 'block' was always NULL at this | |
903 | point, hence the bemused comments below. */ | |
c906108c SS |
904 | |
905 | /* FIXME: this code is never executed--block is always NULL at this | |
906 | point. What is it trying to do, anyway? We already should have | |
907 | checked the STATIC_BLOCK above (it is the superblock of top-level | |
908 | blocks). Why is VAR_NAMESPACE special-cased? */ | |
909 | /* Don't need to mess with the psymtabs; if we have a block, | |
910 | that file is read in. If we don't, then we deal later with | |
911 | all the psymtab stuff that needs checking. */ | |
912 | /* Note (RT): The following never-executed code looks unnecessary to me also. | |
913 | * If we change the code to use the original (passed-in) | |
914 | * value of 'block', we could cause it to execute, but then what | |
915 | * would it do? The STATIC_BLOCK of the symtab containing the passed-in | |
916 | * 'block' was already searched by the above code. And the STATIC_BLOCK's | |
917 | * of *other* symtabs (those files not containing 'block' lexically) | |
918 | * should not contain 'block' address-wise. So we wouldn't expect this | |
919 | * code to find any 'sym''s that were not found above. I vote for | |
920 | * deleting the following paragraph of code. | |
921 | */ | |
922 | if (namespace == VAR_NAMESPACE && block != NULL) | |
923 | { | |
924 | struct block *b; | |
925 | /* Find the right symtab. */ | |
926 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
927 | { |
928 | bv = BLOCKVECTOR (s); | |
929 | b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
930 | if (BLOCK_START (b) <= BLOCK_START (block) | |
931 | && BLOCK_END (b) > BLOCK_START (block)) | |
932 | { | |
3121eff0 | 933 | sym = lookup_block_symbol (b, name, mangled_name, VAR_NAMESPACE); |
c5aa993b JM |
934 | if (sym) |
935 | { | |
936 | block_found = b; | |
937 | if (symtab != NULL) | |
938 | *symtab = s; | |
939 | return fixup_symbol_section (sym, objfile); | |
940 | } | |
941 | } | |
942 | } | |
c906108c | 943 | } |
8155455b | 944 | #endif /* 0 */ |
c906108c SS |
945 | |
946 | /* C++: If requested to do so by the caller, | |
947 | check to see if NAME is a field of `this'. */ | |
948 | if (is_a_field_of_this) | |
949 | { | |
950 | struct value *v = value_of_this (0); | |
c5aa993b | 951 | |
c906108c SS |
952 | *is_a_field_of_this = 0; |
953 | if (v && check_field (v, name)) | |
954 | { | |
955 | *is_a_field_of_this = 1; | |
956 | if (symtab != NULL) | |
957 | *symtab = NULL; | |
958 | return NULL; | |
959 | } | |
960 | } | |
961 | ||
e4051eeb DC |
962 | /* If there's a static block to search, search it next. */ |
963 | ||
964 | /* NOTE: carlton/2002-12-05: There is a question as to whether or | |
965 | not it would be appropriate to search the current global block | |
966 | here as well. (That's what this code used to do before the | |
967 | is_a_field_of_this check was moved up.) On the one hand, it's | |
968 | redundant with the lookup_symbol_aux_symtabs search that happens | |
969 | next. On the other hand, if decode_line_1 is passed an argument | |
970 | like filename:var, then the user presumably wants 'var' to be | |
971 | searched for in filename. On the third hand, there shouldn't be | |
972 | multiple global variables all of which are named 'var', and it's | |
973 | not like decode_line_1 has ever restricted its search to only | |
974 | global variables in a single filename. All in all, only | |
975 | searching the static block here seems best: it's correct and it's | |
976 | cleanest. */ | |
977 | ||
978 | /* NOTE: carlton/2002-12-05: There's also a possible performance | |
979 | issue here: if you usually search for global symbols in the | |
980 | current file, then it would be slightly better to search the | |
981 | current global block before searching all the symtabs. But there | |
982 | are other factors that have a much greater effect on performance | |
983 | than that one, so I don't think we should worry about that for | |
984 | now. */ | |
985 | ||
986 | if (static_block != NULL) | |
987 | { | |
988 | sym = lookup_symbol_aux_block (name, mangled_name, static_block, | |
989 | namespace, symtab); | |
990 | if (sym != NULL) | |
991 | return sym; | |
992 | } | |
993 | ||
c906108c SS |
994 | /* Now search all global blocks. Do the symtab's first, then |
995 | check the psymtab's. If a psymtab indicates the existence | |
996 | of the desired name as a global, then do psymtab-to-symtab | |
997 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 998 | |
8155455b DC |
999 | sym = lookup_symbol_aux_symtabs (GLOBAL_BLOCK, name, mangled_name, |
1000 | namespace, symtab); | |
1001 | if (sym != NULL) | |
1002 | return sym; | |
c906108c SS |
1003 | |
1004 | #ifndef HPUXHPPA | |
1005 | ||
1006 | /* Check for the possibility of the symbol being a function or | |
1007 | a mangled variable that is stored in one of the minimal symbol tables. | |
1008 | Eventually, all global symbols might be resolved in this way. */ | |
c5aa993b | 1009 | |
406bc4de DC |
1010 | sym = lookup_symbol_aux_minsyms (name, mangled_name, |
1011 | namespace, is_a_field_of_this, | |
e45febe2 | 1012 | symtab); |
406bc4de | 1013 | |
e45febe2 | 1014 | if (sym != NULL) |
406bc4de | 1015 | return sym; |
c5aa993b | 1016 | |
c906108c SS |
1017 | #endif |
1018 | ||
8155455b DC |
1019 | sym = lookup_symbol_aux_psymtabs (GLOBAL_BLOCK, name, mangled_name, |
1020 | namespace, symtab); | |
1021 | if (sym != NULL) | |
1022 | return sym; | |
c906108c | 1023 | |
8155455b DC |
1024 | /* Now search all static file-level symbols. Not strictly correct, |
1025 | but more useful than an error. Do the symtabs first, then check | |
1026 | the psymtabs. If a psymtab indicates the existence of the | |
1027 | desired name as a file-level static, then do psymtab-to-symtab | |
c906108c SS |
1028 | conversion on the fly and return the found symbol. */ |
1029 | ||
8155455b DC |
1030 | sym = lookup_symbol_aux_symtabs (STATIC_BLOCK, name, mangled_name, |
1031 | namespace, symtab); | |
1032 | if (sym != NULL) | |
1033 | return sym; | |
1034 | ||
1035 | sym = lookup_symbol_aux_psymtabs (STATIC_BLOCK, name, mangled_name, | |
1036 | namespace, symtab); | |
1037 | if (sym != NULL) | |
1038 | return sym; | |
c906108c SS |
1039 | |
1040 | #ifdef HPUXHPPA | |
1041 | ||
1042 | /* Check for the possibility of the symbol being a function or | |
1043 | a global variable that is stored in one of the minimal symbol tables. | |
1044 | The "minimal symbol table" is built from linker-supplied info. | |
1045 | ||
1046 | RT: I moved this check to last, after the complete search of | |
1047 | the global (p)symtab's and static (p)symtab's. For HP-generated | |
1048 | symbol tables, this check was causing a premature exit from | |
1049 | lookup_symbol with NULL return, and thus messing up symbol lookups | |
1050 | of things like "c::f". It seems to me a check of the minimal | |
1051 | symbol table ought to be a last resort in any case. I'm vaguely | |
1052 | worried about the comment below which talks about FORTRAN routines "foo_" | |
1053 | though... is it saying we need to do the "minsym" check before | |
1054 | the static check in this case? | |
1055 | */ | |
c5aa993b | 1056 | |
c906108c | 1057 | |
406bc4de DC |
1058 | sym = lookup_symbol_aux_minsyms (name, mangled_name, |
1059 | namespace, is_a_field_of_this, | |
e45febe2 | 1060 | symtab); |
406bc4de | 1061 | |
e45febe2 | 1062 | if (sym != NULL) |
406bc4de | 1063 | return sym; |
c906108c SS |
1064 | |
1065 | #endif | |
1066 | ||
1067 | if (symtab != NULL) | |
1068 | *symtab = NULL; | |
8155455b | 1069 | return NULL; |
c906108c | 1070 | } |
8155455b | 1071 | |
e4051eeb DC |
1072 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
1073 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. If we don't find a | |
1074 | match, store the address of STATIC_BLOCK in static_block. */ | |
8155455b DC |
1075 | |
1076 | static struct symbol * | |
1077 | lookup_symbol_aux_local (const char *name, const char *mangled_name, | |
1078 | const struct block *block, | |
1079 | const namespace_enum namespace, | |
e4051eeb DC |
1080 | struct symtab **symtab, |
1081 | const struct block **static_block) | |
8155455b DC |
1082 | { |
1083 | struct symbol *sym; | |
f61e8913 | 1084 | |
e4051eeb DC |
1085 | /* Check if either no block is specified or it's a global block. */ |
1086 | ||
1087 | if (block == NULL || BLOCK_SUPERBLOCK (block) == NULL) | |
1088 | { | |
1089 | *static_block = NULL; | |
1090 | return NULL; | |
1091 | } | |
1092 | ||
1093 | while (BLOCK_SUPERBLOCK (BLOCK_SUPERBLOCK (block)) != NULL) | |
f61e8913 DC |
1094 | { |
1095 | sym = lookup_symbol_aux_block (name, mangled_name, block, namespace, | |
1096 | symtab); | |
1097 | if (sym != NULL) | |
1098 | return sym; | |
1099 | block = BLOCK_SUPERBLOCK (block); | |
1100 | } | |
1101 | ||
e4051eeb DC |
1102 | /* We've reached the static block. */ |
1103 | ||
1104 | *static_block = block; | |
f61e8913 DC |
1105 | return NULL; |
1106 | } | |
1107 | ||
1108 | /* Look up a symbol in a block; if found, locate its symtab, fixup the | |
1109 | symbol, and set block_found appropriately. */ | |
1110 | ||
1111 | static struct symbol * | |
1112 | lookup_symbol_aux_block (const char *name, const char *mangled_name, | |
1113 | const struct block *block, | |
1114 | const namespace_enum namespace, | |
1115 | struct symtab **symtab) | |
1116 | { | |
1117 | struct symbol *sym; | |
8155455b DC |
1118 | struct objfile *objfile = NULL; |
1119 | struct blockvector *bv; | |
1120 | struct block *b; | |
1121 | struct symtab *s = NULL; | |
f61e8913 DC |
1122 | |
1123 | sym = lookup_block_symbol (block, name, mangled_name, namespace); | |
1124 | if (sym) | |
8155455b | 1125 | { |
f61e8913 DC |
1126 | block_found = block; |
1127 | if (symtab != NULL) | |
8155455b | 1128 | { |
f61e8913 DC |
1129 | /* Search the list of symtabs for one which contains the |
1130 | address of the start of this block. */ | |
1131 | ALL_SYMTABS (objfile, s) | |
8155455b | 1132 | { |
f61e8913 DC |
1133 | bv = BLOCKVECTOR (s); |
1134 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1135 | if (BLOCK_START (b) <= BLOCK_START (block) | |
1136 | && BLOCK_END (b) > BLOCK_START (block)) | |
1137 | goto found; | |
8155455b | 1138 | } |
f61e8913 DC |
1139 | found: |
1140 | *symtab = s; | |
8155455b | 1141 | } |
f61e8913 DC |
1142 | |
1143 | return fixup_symbol_section (sym, objfile); | |
8155455b DC |
1144 | } |
1145 | ||
1146 | return NULL; | |
1147 | } | |
1148 | ||
1149 | /* Check to see if the symbol is defined in one of the symtabs. | |
1150 | BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
1151 | depending on whether or not we want to search global symbols or | |
1152 | static symbols. */ | |
1153 | ||
1154 | static struct symbol * | |
1155 | lookup_symbol_aux_symtabs (int block_index, | |
1156 | const char *name, const char *mangled_name, | |
1157 | const namespace_enum namespace, | |
1158 | struct symtab **symtab) | |
1159 | { | |
1160 | struct symbol *sym; | |
1161 | struct objfile *objfile; | |
1162 | struct blockvector *bv; | |
1163 | const struct block *block; | |
1164 | struct symtab *s; | |
1165 | ||
1166 | ALL_SYMTABS (objfile, s) | |
1167 | { | |
1168 | bv = BLOCKVECTOR (s); | |
1169 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
1170 | sym = lookup_block_symbol (block, name, mangled_name, namespace); | |
1171 | if (sym) | |
1172 | { | |
1173 | block_found = block; | |
1174 | if (symtab != NULL) | |
1175 | *symtab = s; | |
1176 | return fixup_symbol_section (sym, objfile); | |
1177 | } | |
1178 | } | |
1179 | ||
1180 | return NULL; | |
1181 | } | |
1182 | ||
1183 | /* Check to see if the symbol is defined in one of the partial | |
1184 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or | |
1185 | STATIC_BLOCK, depending on whether or not we want to search global | |
1186 | symbols or static symbols. */ | |
1187 | ||
1188 | static struct symbol * | |
1189 | lookup_symbol_aux_psymtabs (int block_index, const char *name, | |
1190 | const char *mangled_name, | |
1191 | const namespace_enum namespace, | |
1192 | struct symtab **symtab) | |
1193 | { | |
1194 | struct symbol *sym; | |
1195 | struct objfile *objfile; | |
1196 | struct blockvector *bv; | |
1197 | const struct block *block; | |
1198 | struct partial_symtab *ps; | |
1199 | struct symtab *s; | |
1200 | const int psymtab_index = (block_index == GLOBAL_BLOCK ? 1 : 0); | |
1201 | ||
1202 | ALL_PSYMTABS (objfile, ps) | |
1203 | { | |
1204 | if (!ps->readin | |
3d4e8fd2 DC |
1205 | && lookup_partial_symbol (ps, name, mangled_name, |
1206 | psymtab_index, namespace)) | |
8155455b DC |
1207 | { |
1208 | s = PSYMTAB_TO_SYMTAB (ps); | |
1209 | bv = BLOCKVECTOR (s); | |
1210 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
1211 | sym = lookup_block_symbol (block, name, mangled_name, namespace); | |
1212 | if (!sym) | |
1213 | { | |
1214 | /* This shouldn't be necessary, but as a last resort try | |
1215 | looking in the statics even though the psymtab claimed | |
1216 | the symbol was global, or vice-versa. It's possible | |
1217 | that the psymtab gets it wrong in some cases. */ | |
1218 | ||
1219 | /* FIXME: carlton/2002-09-30: Should we really do that? | |
1220 | If that happens, isn't it likely to be a GDB error, in | |
1221 | which case we should fix the GDB error rather than | |
1222 | silently dealing with it here? So I'd vote for | |
1223 | removing the check for the symbol in the other | |
1224 | block. */ | |
1225 | block = BLOCKVECTOR_BLOCK (bv, | |
1226 | block_index == GLOBAL_BLOCK ? | |
1227 | STATIC_BLOCK : GLOBAL_BLOCK); | |
1228 | sym = lookup_block_symbol (block, name, mangled_name, namespace); | |
1229 | if (!sym) | |
1230 | error ("Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n%s may be an inlined function, or may be a template function\n(if a template, try specifying an instantiation: %s<type>).", | |
1231 | block_index == GLOBAL_BLOCK ? "global" : "static", | |
1232 | name, ps->filename, name, name); | |
1233 | } | |
1234 | if (symtab != NULL) | |
1235 | *symtab = s; | |
1236 | return fixup_symbol_section (sym, objfile); | |
1237 | } | |
1238 | } | |
1239 | ||
1240 | return NULL; | |
1241 | } | |
1242 | ||
406bc4de DC |
1243 | /* Check for the possibility of the symbol being a function or a |
1244 | mangled variable that is stored in one of the minimal symbol | |
1245 | tables. Eventually, all global symbols might be resolved in this | |
1246 | way. */ | |
1247 | ||
e45febe2 DC |
1248 | /* NOTE: carlton/2002-12-05: At one point, this function was part of |
1249 | lookup_symbol_aux, and what are now 'return' statements within | |
1250 | lookup_symbol_aux_minsyms returned from lookup_symbol_aux, even if | |
1251 | sym was NULL. As far as I can tell, this was basically accidental; | |
1252 | it didn't happen every time that msymbol was non-NULL, but only if | |
1253 | some additional conditions held as well, and it caused problems | |
1254 | with HP-generated symbol tables. */ | |
1255 | ||
406bc4de DC |
1256 | static struct symbol * |
1257 | lookup_symbol_aux_minsyms (const char *name, | |
1258 | const char *mangled_name, | |
1259 | const namespace_enum namespace, | |
1260 | int *is_a_field_of_this, | |
e45febe2 | 1261 | struct symtab **symtab) |
406bc4de DC |
1262 | { |
1263 | struct symbol *sym; | |
1264 | struct blockvector *bv; | |
1265 | const struct block *block; | |
1266 | struct minimal_symbol *msymbol; | |
1267 | struct symtab *s; | |
1268 | ||
1269 | if (namespace == VAR_NAMESPACE) | |
1270 | { | |
1271 | msymbol = lookup_minimal_symbol (name, NULL, NULL); | |
1272 | ||
1273 | if (msymbol != NULL) | |
1274 | { | |
1275 | /* OK, we found a minimal symbol in spite of not finding any | |
1276 | symbol. There are various possible explanations for | |
1277 | this. One possibility is the symbol exists in code not | |
1278 | compiled -g. Another possibility is that the 'psymtab' | |
1279 | isn't doing its job. A third possibility, related to #2, | |
1280 | is that we were confused by name-mangling. For instance, | |
1281 | maybe the psymtab isn't doing its job because it only | |
1282 | know about demangled names, but we were given a mangled | |
1283 | name... */ | |
1284 | ||
1285 | /* We first use the address in the msymbol to try to locate | |
1286 | the appropriate symtab. Note that find_pc_sect_symtab() | |
1287 | has a side-effect of doing psymtab-to-symtab expansion, | |
1288 | for the found symtab. */ | |
1289 | s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol), | |
1290 | SYMBOL_BFD_SECTION (msymbol)); | |
1291 | if (s != NULL) | |
1292 | { | |
1293 | /* This is a function which has a symtab for its address. */ | |
1294 | bv = BLOCKVECTOR (s); | |
1295 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1296 | ||
22abf04a | 1297 | /* This call used to pass `DEPRECATED_SYMBOL_NAME (msymbol)' as the |
406bc4de DC |
1298 | `name' argument to lookup_block_symbol. But the name |
1299 | of a minimal symbol is always mangled, so that seems | |
1300 | to be clearly the wrong thing to pass as the | |
1301 | unmangled name. */ | |
1302 | sym = | |
1303 | lookup_block_symbol (block, name, mangled_name, namespace); | |
1304 | /* We kept static functions in minimal symbol table as well as | |
1305 | in static scope. We want to find them in the symbol table. */ | |
1306 | if (!sym) | |
1307 | { | |
1308 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1309 | sym = lookup_block_symbol (block, name, | |
1310 | mangled_name, namespace); | |
1311 | } | |
1312 | ||
1313 | /* NOTE: carlton/2002-12-04: The following comment was | |
1314 | taken from a time when two versions of this function | |
1315 | were part of the body of lookup_symbol_aux: this | |
1316 | comment was taken from the version of the function | |
1317 | that was #ifdef HPUXHPPA, and the comment was right | |
1318 | before the 'return NULL' part of lookup_symbol_aux. | |
1319 | (Hence the "Fall through and return 0" comment.) | |
1320 | Elena did some digging into the situation for | |
1321 | Fortran, and she reports: | |
1322 | ||
1323 | "I asked around (thanks to Jeff Knaggs), and I think | |
1324 | the story for Fortran goes like this: | |
1325 | ||
1326 | "Apparently, in older Fortrans, '_' was not part of | |
1327 | the user namespace. g77 attached a final '_' to | |
1328 | procedure names as the exported symbols for linkage | |
1329 | (foo_) , but the symbols went in the debug info just | |
1330 | like 'foo'. The rationale behind this is not | |
1331 | completely clear, and maybe it was done to other | |
1332 | symbols as well, not just procedures." */ | |
1333 | ||
1334 | /* If we get here with sym == 0, the symbol was | |
1335 | found in the minimal symbol table | |
1336 | but not in the symtab. | |
1337 | Fall through and return 0 to use the msymbol | |
1338 | definition of "foo_". | |
1339 | (Note that outer code generally follows up a call | |
1340 | to this routine with a call to lookup_minimal_symbol(), | |
1341 | so a 0 return means we'll just flow into that other routine). | |
1342 | ||
1343 | This happens for Fortran "foo_" symbols, | |
1344 | which are "foo" in the symtab. | |
1345 | ||
1346 | This can also happen if "asm" is used to make a | |
1347 | regular symbol but not a debugging symbol, e.g. | |
1348 | asm(".globl _main"); | |
1349 | asm("_main:"); | |
1350 | */ | |
1351 | ||
1352 | if (symtab != NULL && sym != NULL) | |
1353 | *symtab = s; | |
406bc4de DC |
1354 | return fixup_symbol_section (sym, s->objfile); |
1355 | } | |
1356 | else if (MSYMBOL_TYPE (msymbol) != mst_text | |
1357 | && MSYMBOL_TYPE (msymbol) != mst_file_text | |
22abf04a | 1358 | && !STREQ (name, DEPRECATED_SYMBOL_NAME (msymbol))) |
406bc4de DC |
1359 | { |
1360 | /* This is a mangled variable, look it up by its | |
1361 | mangled name. */ | |
22abf04a | 1362 | return lookup_symbol_aux (DEPRECATED_SYMBOL_NAME (msymbol), mangled_name, |
406bc4de DC |
1363 | NULL, namespace, is_a_field_of_this, |
1364 | symtab); | |
1365 | } | |
1366 | } | |
1367 | } | |
1368 | ||
1369 | return NULL; | |
1370 | } | |
1371 | ||
3d4e8fd2 DC |
1372 | /* Look, in partial_symtab PST, for symbol whose natural name is NAME. |
1373 | If LINKAGE_NAME is non-NULL, check in addition that the symbol's | |
1374 | linkage name matches it. Check the global symbols if GLOBAL, the | |
1375 | static symbols if not */ | |
c906108c SS |
1376 | |
1377 | static struct partial_symbol * | |
3d4e8fd2 DC |
1378 | lookup_partial_symbol (struct partial_symtab *pst, const char *name, |
1379 | const char *linkage_name, int global, | |
fba45db2 | 1380 | namespace_enum namespace) |
c906108c | 1381 | { |
357e46e7 | 1382 | struct partial_symbol *temp; |
c906108c | 1383 | struct partial_symbol **start, **psym; |
38d49aff | 1384 | struct partial_symbol **top, **real_top, **bottom, **center; |
c906108c SS |
1385 | int length = (global ? pst->n_global_syms : pst->n_static_syms); |
1386 | int do_linear_search = 1; | |
357e46e7 | 1387 | |
c906108c SS |
1388 | if (length == 0) |
1389 | { | |
1390 | return (NULL); | |
1391 | } | |
c906108c SS |
1392 | start = (global ? |
1393 | pst->objfile->global_psymbols.list + pst->globals_offset : | |
c5aa993b | 1394 | pst->objfile->static_psymbols.list + pst->statics_offset); |
357e46e7 | 1395 | |
c5aa993b | 1396 | if (global) /* This means we can use a binary search. */ |
c906108c SS |
1397 | { |
1398 | do_linear_search = 0; | |
1399 | ||
1400 | /* Binary search. This search is guaranteed to end with center | |
0fe19209 DC |
1401 | pointing at the earliest partial symbol whose name might be |
1402 | correct. At that point *all* partial symbols with an | |
1403 | appropriate name will be checked against the correct | |
1404 | namespace. */ | |
c906108c SS |
1405 | |
1406 | bottom = start; | |
1407 | top = start + length - 1; | |
38d49aff | 1408 | real_top = top; |
c906108c SS |
1409 | while (top > bottom) |
1410 | { | |
1411 | center = bottom + (top - bottom) / 2; | |
1412 | if (!(center < top)) | |
e1e9e218 | 1413 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c | 1414 | if (!do_linear_search |
357e46e7 | 1415 | && (SYMBOL_LANGUAGE (*center) == language_java)) |
c906108c SS |
1416 | { |
1417 | do_linear_search = 1; | |
1418 | } | |
c8be8951 | 1419 | if (strcmp_iw_ordered (SYMBOL_NATURAL_NAME (*center), name) >= 0) |
c906108c SS |
1420 | { |
1421 | top = center; | |
1422 | } | |
1423 | else | |
1424 | { | |
1425 | bottom = center + 1; | |
1426 | } | |
1427 | } | |
1428 | if (!(top == bottom)) | |
e1e9e218 | 1429 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
357e46e7 | 1430 | |
3d4e8fd2 DC |
1431 | while (top <= real_top |
1432 | && (linkage_name != NULL | |
1433 | ? strcmp (SYMBOL_LINKAGE_NAME (*top), linkage_name) == 0 | |
1434 | : SYMBOL_MATCHES_NATURAL_NAME (*top,name))) | |
c906108c SS |
1435 | { |
1436 | if (SYMBOL_NAMESPACE (*top) == namespace) | |
1437 | { | |
357e46e7 | 1438 | return (*top); |
c906108c | 1439 | } |
c5aa993b | 1440 | top++; |
c906108c SS |
1441 | } |
1442 | } | |
1443 | ||
1444 | /* Can't use a binary search or else we found during the binary search that | |
1445 | we should also do a linear search. */ | |
1446 | ||
1447 | if (do_linear_search) | |
357e46e7 | 1448 | { |
c906108c SS |
1449 | for (psym = start; psym < start + length; psym++) |
1450 | { | |
1451 | if (namespace == SYMBOL_NAMESPACE (*psym)) | |
1452 | { | |
3d4e8fd2 DC |
1453 | if (linkage_name != NULL |
1454 | ? strcmp (SYMBOL_LINKAGE_NAME (*psym), linkage_name) == 0 | |
1455 | : SYMBOL_MATCHES_NATURAL_NAME (*psym, name)) | |
c906108c SS |
1456 | { |
1457 | return (*psym); | |
1458 | } | |
1459 | } | |
1460 | } | |
1461 | } | |
1462 | ||
1463 | return (NULL); | |
1464 | } | |
1465 | ||
1466 | /* Look up a type named NAME in the struct_namespace. The type returned | |
1467 | must not be opaque -- i.e., must have at least one field defined | |
1468 | ||
1469 | This code was modelled on lookup_symbol -- the parts not relevant to looking | |
1470 | up types were just left out. In particular it's assumed here that types | |
1471 | are available in struct_namespace and only at file-static or global blocks. */ | |
1472 | ||
1473 | ||
1474 | struct type * | |
fba45db2 | 1475 | lookup_transparent_type (const char *name) |
c906108c SS |
1476 | { |
1477 | register struct symbol *sym; | |
1478 | register struct symtab *s = NULL; | |
1479 | register struct partial_symtab *ps; | |
1480 | struct blockvector *bv; | |
1481 | register struct objfile *objfile; | |
1482 | register struct block *block; | |
c906108c SS |
1483 | |
1484 | /* Now search all the global symbols. Do the symtab's first, then | |
1485 | check the psymtab's. If a psymtab indicates the existence | |
1486 | of the desired name as a global, then do psymtab-to-symtab | |
1487 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 1488 | |
c906108c | 1489 | ALL_SYMTABS (objfile, s) |
c5aa993b JM |
1490 | { |
1491 | bv = BLOCKVECTOR (s); | |
1492 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
3121eff0 | 1493 | sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE); |
c5aa993b JM |
1494 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
1495 | { | |
1496 | return SYMBOL_TYPE (sym); | |
1497 | } | |
1498 | } | |
c906108c SS |
1499 | |
1500 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b | 1501 | { |
3d4e8fd2 DC |
1502 | if (!ps->readin && lookup_partial_symbol (ps, name, NULL, |
1503 | 1, STRUCT_NAMESPACE)) | |
c5aa993b JM |
1504 | { |
1505 | s = PSYMTAB_TO_SYMTAB (ps); | |
1506 | bv = BLOCKVECTOR (s); | |
1507 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
3121eff0 | 1508 | sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE); |
c5aa993b JM |
1509 | if (!sym) |
1510 | { | |
1511 | /* This shouldn't be necessary, but as a last resort | |
1512 | * try looking in the statics even though the psymtab | |
1513 | * claimed the symbol was global. It's possible that | |
1514 | * the psymtab gets it wrong in some cases. | |
1515 | */ | |
1516 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
3121eff0 | 1517 | sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE); |
c5aa993b JM |
1518 | if (!sym) |
1519 | error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\ | |
c906108c SS |
1520 | %s may be an inlined function, or may be a template function\n\ |
1521 | (if a template, try specifying an instantiation: %s<type>).", | |
c5aa993b JM |
1522 | name, ps->filename, name, name); |
1523 | } | |
1524 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1525 | return SYMBOL_TYPE (sym); | |
1526 | } | |
1527 | } | |
c906108c SS |
1528 | |
1529 | /* Now search the static file-level symbols. | |
1530 | Not strictly correct, but more useful than an error. | |
1531 | Do the symtab's first, then | |
1532 | check the psymtab's. If a psymtab indicates the existence | |
1533 | of the desired name as a file-level static, then do psymtab-to-symtab | |
1534 | conversion on the fly and return the found symbol. | |
1535 | */ | |
1536 | ||
1537 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
1538 | { |
1539 | bv = BLOCKVECTOR (s); | |
1540 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
3121eff0 | 1541 | sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE); |
c5aa993b JM |
1542 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
1543 | { | |
1544 | return SYMBOL_TYPE (sym); | |
1545 | } | |
1546 | } | |
c906108c SS |
1547 | |
1548 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b | 1549 | { |
3d4e8fd2 | 1550 | if (!ps->readin && lookup_partial_symbol (ps, name, NULL, 0, STRUCT_NAMESPACE)) |
c5aa993b JM |
1551 | { |
1552 | s = PSYMTAB_TO_SYMTAB (ps); | |
1553 | bv = BLOCKVECTOR (s); | |
1554 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
3121eff0 | 1555 | sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE); |
c5aa993b JM |
1556 | if (!sym) |
1557 | { | |
1558 | /* This shouldn't be necessary, but as a last resort | |
1559 | * try looking in the globals even though the psymtab | |
1560 | * claimed the symbol was static. It's possible that | |
1561 | * the psymtab gets it wrong in some cases. | |
1562 | */ | |
1563 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
3121eff0 | 1564 | sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE); |
c5aa993b JM |
1565 | if (!sym) |
1566 | error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\ | |
c906108c SS |
1567 | %s may be an inlined function, or may be a template function\n\ |
1568 | (if a template, try specifying an instantiation: %s<type>).", | |
c5aa993b JM |
1569 | name, ps->filename, name, name); |
1570 | } | |
1571 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1572 | return SYMBOL_TYPE (sym); | |
1573 | } | |
1574 | } | |
c906108c SS |
1575 | return (struct type *) 0; |
1576 | } | |
1577 | ||
1578 | ||
1579 | /* Find the psymtab containing main(). */ | |
1580 | /* FIXME: What about languages without main() or specially linked | |
1581 | executables that have no main() ? */ | |
1582 | ||
1583 | struct partial_symtab * | |
fba45db2 | 1584 | find_main_psymtab (void) |
c906108c SS |
1585 | { |
1586 | register struct partial_symtab *pst; | |
1587 | register struct objfile *objfile; | |
1588 | ||
1589 | ALL_PSYMTABS (objfile, pst) | |
c5aa993b | 1590 | { |
3d4e8fd2 | 1591 | if (lookup_partial_symbol (pst, main_name (), NULL, 1, VAR_NAMESPACE)) |
c5aa993b JM |
1592 | { |
1593 | return (pst); | |
1594 | } | |
1595 | } | |
c906108c SS |
1596 | return (NULL); |
1597 | } | |
1598 | ||
1599 | /* Search BLOCK for symbol NAME in NAMESPACE. | |
1600 | ||
1601 | Note that if NAME is the demangled form of a C++ symbol, we will fail | |
1602 | to find a match during the binary search of the non-encoded names, but | |
1603 | for now we don't worry about the slight inefficiency of looking for | |
1604 | a match we'll never find, since it will go pretty quick. Once the | |
1605 | binary search terminates, we drop through and do a straight linear | |
1606 | search on the symbols. Each symbol which is marked as being a C++ | |
1607 | symbol (language_cplus set) has both the encoded and non-encoded names | |
3121eff0 DJ |
1608 | tested for a match. |
1609 | ||
1610 | If MANGLED_NAME is non-NULL, verify that any symbol we find has this | |
1611 | particular mangled name. | |
1612 | */ | |
c906108c SS |
1613 | |
1614 | struct symbol * | |
fba45db2 | 1615 | lookup_block_symbol (register const struct block *block, const char *name, |
3121eff0 | 1616 | const char *mangled_name, |
fba45db2 | 1617 | const namespace_enum namespace) |
c906108c SS |
1618 | { |
1619 | register int bot, top, inc; | |
1620 | register struct symbol *sym; | |
1621 | register struct symbol *sym_found = NULL; | |
1622 | register int do_linear_search = 1; | |
1623 | ||
261397f8 DJ |
1624 | if (BLOCK_HASHTABLE (block)) |
1625 | { | |
1626 | unsigned int hash_index; | |
1627 | hash_index = msymbol_hash_iw (name); | |
1628 | hash_index = hash_index % BLOCK_BUCKETS (block); | |
1629 | for (sym = BLOCK_BUCKET (block, hash_index); sym; sym = sym->hash_next) | |
1630 | { | |
1631 | if (SYMBOL_NAMESPACE (sym) == namespace | |
1632 | && (mangled_name | |
22abf04a | 1633 | ? strcmp (DEPRECATED_SYMBOL_NAME (sym), mangled_name) == 0 |
8e437497 | 1634 | : SYMBOL_MATCHES_NATURAL_NAME (sym, name))) |
261397f8 DJ |
1635 | return sym; |
1636 | } | |
1637 | return NULL; | |
1638 | } | |
1639 | ||
c906108c SS |
1640 | /* If the blocks's symbols were sorted, start with a binary search. */ |
1641 | ||
1642 | if (BLOCK_SHOULD_SORT (block)) | |
1643 | { | |
1644 | /* Reset the linear search flag so if the binary search fails, we | |
c5aa993b | 1645 | won't do the linear search once unless we find some reason to |
fba7f19c | 1646 | do so */ |
c906108c SS |
1647 | |
1648 | do_linear_search = 0; | |
1649 | top = BLOCK_NSYMS (block); | |
1650 | bot = 0; | |
1651 | ||
1652 | /* Advance BOT to not far before the first symbol whose name is NAME. */ | |
1653 | ||
1654 | while (1) | |
1655 | { | |
1656 | inc = (top - bot + 1); | |
1657 | /* No need to keep binary searching for the last few bits worth. */ | |
1658 | if (inc < 4) | |
1659 | { | |
1660 | break; | |
1661 | } | |
1662 | inc = (inc >> 1) + bot; | |
1663 | sym = BLOCK_SYM (block, inc); | |
fba7f19c | 1664 | if (!do_linear_search && (SYMBOL_LANGUAGE (sym) == language_java)) |
c906108c SS |
1665 | { |
1666 | do_linear_search = 1; | |
1667 | } | |
c8be8951 | 1668 | if (SYMBOL_NATURAL_NAME (sym)[0] < name[0]) |
c906108c SS |
1669 | { |
1670 | bot = inc; | |
1671 | } | |
c8be8951 | 1672 | else if (SYMBOL_NATURAL_NAME (sym)[0] > name[0]) |
c906108c SS |
1673 | { |
1674 | top = inc; | |
1675 | } | |
c8be8951 | 1676 | else if (strcmp (SYMBOL_NATURAL_NAME (sym), name) < 0) |
c906108c SS |
1677 | { |
1678 | bot = inc; | |
1679 | } | |
1680 | else | |
1681 | { | |
1682 | top = inc; | |
1683 | } | |
1684 | } | |
1685 | ||
1686 | /* Now scan forward until we run out of symbols, find one whose | |
c5aa993b JM |
1687 | name is greater than NAME, or find one we want. If there is |
1688 | more than one symbol with the right name and namespace, we | |
1689 | return the first one; I believe it is now impossible for us | |
1690 | to encounter two symbols with the same name and namespace | |
1691 | here, because blocks containing argument symbols are no | |
3121eff0 DJ |
1692 | longer sorted. The exception is for C++, where multiple functions |
1693 | (cloned constructors / destructors, in particular) can have | |
1694 | the same demangled name. So if we have a particular | |
1695 | mangled name to match, try to do so. */ | |
c906108c SS |
1696 | |
1697 | top = BLOCK_NSYMS (block); | |
1698 | while (bot < top) | |
1699 | { | |
1700 | sym = BLOCK_SYM (block, bot); | |
3121eff0 DJ |
1701 | if (SYMBOL_NAMESPACE (sym) == namespace |
1702 | && (mangled_name | |
22abf04a | 1703 | ? strcmp (DEPRECATED_SYMBOL_NAME (sym), mangled_name) == 0 |
8e437497 | 1704 | : SYMBOL_MATCHES_NATURAL_NAME (sym, name))) |
c9049fc9 MC |
1705 | { |
1706 | return sym; | |
1707 | } | |
de5ad195 | 1708 | if (SYMBOL_PRINT_NAME (sym)[0] > name[0]) |
1ba7c32c JM |
1709 | { |
1710 | break; | |
1711 | } | |
c906108c SS |
1712 | bot++; |
1713 | } | |
1714 | } | |
1715 | ||
1716 | /* Here if block isn't sorted, or we fail to find a match during the | |
1717 | binary search above. If during the binary search above, we find a | |
8cc1c882 | 1718 | symbol which is a Java symbol, then we have re-enabled the linear |
c906108c SS |
1719 | search flag which was reset when starting the binary search. |
1720 | ||
1721 | This loop is equivalent to the loop above, but hacked greatly for speed. | |
1722 | ||
1723 | Note that parameter symbols do not always show up last in the | |
1724 | list; this loop makes sure to take anything else other than | |
1725 | parameter symbols first; it only uses parameter symbols as a | |
1726 | last resort. Note that this only takes up extra computation | |
1727 | time on a match. */ | |
1728 | ||
1729 | if (do_linear_search) | |
1730 | { | |
1731 | top = BLOCK_NSYMS (block); | |
1732 | bot = 0; | |
1733 | while (bot < top) | |
1734 | { | |
1735 | sym = BLOCK_SYM (block, bot); | |
3121eff0 DJ |
1736 | if (SYMBOL_NAMESPACE (sym) == namespace |
1737 | && (mangled_name | |
22abf04a | 1738 | ? strcmp (DEPRECATED_SYMBOL_NAME (sym), mangled_name) == 0 |
8e437497 | 1739 | : SYMBOL_MATCHES_NATURAL_NAME (sym, name))) |
c906108c SS |
1740 | { |
1741 | /* If SYM has aliases, then use any alias that is active | |
c5aa993b JM |
1742 | at the current PC. If no alias is active at the current |
1743 | PC, then use the main symbol. | |
c906108c | 1744 | |
c5aa993b | 1745 | ?!? Is checking the current pc correct? Is this routine |
a0b3c4fd JM |
1746 | ever called to look up a symbol from another context? |
1747 | ||
1748 | FIXME: No, it's not correct. If someone sets a | |
1749 | conditional breakpoint at an address, then the | |
1750 | breakpoint's `struct expression' should refer to the | |
1751 | `struct symbol' appropriate for the breakpoint's | |
1752 | address, which may not be the PC. | |
1753 | ||
1754 | Even if it were never called from another context, | |
1755 | it's totally bizarre for lookup_symbol's behavior to | |
1756 | depend on the value of the inferior's current PC. We | |
1757 | should pass in the appropriate PC as well as the | |
1758 | block. The interface to lookup_symbol should change | |
1759 | to require the caller to provide a PC. */ | |
1760 | ||
c5aa993b JM |
1761 | if (SYMBOL_ALIASES (sym)) |
1762 | sym = find_active_alias (sym, read_pc ()); | |
c906108c SS |
1763 | |
1764 | sym_found = sym; | |
1765 | if (SYMBOL_CLASS (sym) != LOC_ARG && | |
1766 | SYMBOL_CLASS (sym) != LOC_LOCAL_ARG && | |
1767 | SYMBOL_CLASS (sym) != LOC_REF_ARG && | |
1768 | SYMBOL_CLASS (sym) != LOC_REGPARM && | |
1769 | SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR && | |
4c2df51b DJ |
1770 | SYMBOL_CLASS (sym) != LOC_BASEREG_ARG && |
1771 | SYMBOL_CLASS (sym) != LOC_COMPUTED_ARG) | |
c906108c SS |
1772 | { |
1773 | break; | |
1774 | } | |
1775 | } | |
1776 | bot++; | |
1777 | } | |
1778 | } | |
1779 | return (sym_found); /* Will be NULL if not found. */ | |
1780 | } | |
1781 | ||
1782 | /* Given a main symbol SYM and ADDR, search through the alias | |
1783 | list to determine if an alias is active at ADDR and return | |
1784 | the active alias. | |
1785 | ||
1786 | If no alias is active, then return SYM. */ | |
1787 | ||
1788 | static struct symbol * | |
fba45db2 | 1789 | find_active_alias (struct symbol *sym, CORE_ADDR addr) |
c906108c SS |
1790 | { |
1791 | struct range_list *r; | |
1792 | struct alias_list *aliases; | |
1793 | ||
1794 | /* If we have aliases, check them first. */ | |
1795 | aliases = SYMBOL_ALIASES (sym); | |
1796 | ||
1797 | while (aliases) | |
1798 | { | |
1799 | if (!SYMBOL_RANGES (aliases->sym)) | |
c5aa993b | 1800 | return aliases->sym; |
c906108c SS |
1801 | for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next) |
1802 | { | |
1803 | if (r->start <= addr && r->end > addr) | |
1804 | return aliases->sym; | |
1805 | } | |
1806 | aliases = aliases->next; | |
1807 | } | |
1808 | ||
1809 | /* Nothing found, return the main symbol. */ | |
1810 | return sym; | |
1811 | } | |
c906108c | 1812 | \f |
c5aa993b | 1813 | |
c906108c SS |
1814 | /* Find the symtab associated with PC and SECTION. Look through the |
1815 | psymtabs and read in another symtab if necessary. */ | |
1816 | ||
1817 | struct symtab * | |
fba45db2 | 1818 | find_pc_sect_symtab (CORE_ADDR pc, asection *section) |
c906108c SS |
1819 | { |
1820 | register struct block *b; | |
1821 | struct blockvector *bv; | |
1822 | register struct symtab *s = NULL; | |
1823 | register struct symtab *best_s = NULL; | |
1824 | register struct partial_symtab *ps; | |
1825 | register struct objfile *objfile; | |
1826 | CORE_ADDR distance = 0; | |
8a48e967 DJ |
1827 | struct minimal_symbol *msymbol; |
1828 | ||
1829 | /* If we know that this is not a text address, return failure. This is | |
1830 | necessary because we loop based on the block's high and low code | |
1831 | addresses, which do not include the data ranges, and because | |
1832 | we call find_pc_sect_psymtab which has a similar restriction based | |
1833 | on the partial_symtab's texthigh and textlow. */ | |
1834 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
1835 | if (msymbol | |
1836 | && (msymbol->type == mst_data | |
1837 | || msymbol->type == mst_bss | |
1838 | || msymbol->type == mst_abs | |
1839 | || msymbol->type == mst_file_data | |
1840 | || msymbol->type == mst_file_bss)) | |
1841 | return NULL; | |
c906108c SS |
1842 | |
1843 | /* Search all symtabs for the one whose file contains our address, and which | |
1844 | is the smallest of all the ones containing the address. This is designed | |
1845 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
1846 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
1847 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
1848 | ||
1849 | This happens for native ecoff format, where code from included files | |
1850 | gets its own symtab. The symtab for the included file should have | |
1851 | been read in already via the dependency mechanism. | |
1852 | It might be swifter to create several symtabs with the same name | |
1853 | like xcoff does (I'm not sure). | |
1854 | ||
1855 | It also happens for objfiles that have their functions reordered. | |
1856 | For these, the symtab we are looking for is not necessarily read in. */ | |
1857 | ||
1858 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
1859 | { |
1860 | bv = BLOCKVECTOR (s); | |
1861 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
c906108c | 1862 | |
c5aa993b | 1863 | if (BLOCK_START (b) <= pc |
c5aa993b | 1864 | && BLOCK_END (b) > pc |
c5aa993b JM |
1865 | && (distance == 0 |
1866 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
1867 | { | |
1868 | /* For an objfile that has its functions reordered, | |
1869 | find_pc_psymtab will find the proper partial symbol table | |
1870 | and we simply return its corresponding symtab. */ | |
1871 | /* In order to better support objfiles that contain both | |
1872 | stabs and coff debugging info, we continue on if a psymtab | |
1873 | can't be found. */ | |
1874 | if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs) | |
1875 | { | |
1876 | ps = find_pc_sect_psymtab (pc, section); | |
1877 | if (ps) | |
1878 | return PSYMTAB_TO_SYMTAB (ps); | |
1879 | } | |
1880 | if (section != 0) | |
1881 | { | |
1882 | int i; | |
261397f8 | 1883 | struct symbol *sym = NULL; |
c906108c | 1884 | |
261397f8 | 1885 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 1886 | { |
261397f8 DJ |
1887 | fixup_symbol_section (sym, objfile); |
1888 | if (section == SYMBOL_BFD_SECTION (sym)) | |
c5aa993b JM |
1889 | break; |
1890 | } | |
261397f8 | 1891 | if ((i >= BLOCK_BUCKETS (b)) && (sym == NULL)) |
c5aa993b JM |
1892 | continue; /* no symbol in this symtab matches section */ |
1893 | } | |
1894 | distance = BLOCK_END (b) - BLOCK_START (b); | |
1895 | best_s = s; | |
1896 | } | |
1897 | } | |
c906108c SS |
1898 | |
1899 | if (best_s != NULL) | |
c5aa993b | 1900 | return (best_s); |
c906108c SS |
1901 | |
1902 | s = NULL; | |
1903 | ps = find_pc_sect_psymtab (pc, section); | |
1904 | if (ps) | |
1905 | { | |
1906 | if (ps->readin) | |
1907 | /* Might want to error() here (in case symtab is corrupt and | |
1908 | will cause a core dump), but maybe we can successfully | |
1909 | continue, so let's not. */ | |
c906108c | 1910 | warning ("\ |
d730266b AC |
1911 | (Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n", |
1912 | paddr_nz (pc)); | |
c906108c SS |
1913 | s = PSYMTAB_TO_SYMTAB (ps); |
1914 | } | |
1915 | return (s); | |
1916 | } | |
1917 | ||
1918 | /* Find the symtab associated with PC. Look through the psymtabs and | |
1919 | read in another symtab if necessary. Backward compatibility, no section */ | |
1920 | ||
1921 | struct symtab * | |
fba45db2 | 1922 | find_pc_symtab (CORE_ADDR pc) |
c906108c SS |
1923 | { |
1924 | return find_pc_sect_symtab (pc, find_pc_mapped_section (pc)); | |
1925 | } | |
c906108c | 1926 | \f |
c5aa993b | 1927 | |
7e73cedf | 1928 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
1929 | Return a structure containing a symtab pointer, a line number, |
1930 | and a pc range for the entire source line. | |
1931 | The value's .pc field is NOT the specified pc. | |
1932 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
1933 | use the line that ends there. Otherwise, in that case, the line | |
1934 | that begins there is used. */ | |
1935 | ||
1936 | /* The big complication here is that a line may start in one file, and end just | |
1937 | before the start of another file. This usually occurs when you #include | |
1938 | code in the middle of a subroutine. To properly find the end of a line's PC | |
1939 | range, we must search all symtabs associated with this compilation unit, and | |
1940 | find the one whose first PC is closer than that of the next line in this | |
1941 | symtab. */ | |
1942 | ||
1943 | /* If it's worth the effort, we could be using a binary search. */ | |
1944 | ||
1945 | struct symtab_and_line | |
fba45db2 | 1946 | find_pc_sect_line (CORE_ADDR pc, struct sec *section, int notcurrent) |
c906108c SS |
1947 | { |
1948 | struct symtab *s; | |
1949 | register struct linetable *l; | |
1950 | register int len; | |
1951 | register int i; | |
1952 | register struct linetable_entry *item; | |
1953 | struct symtab_and_line val; | |
1954 | struct blockvector *bv; | |
1955 | struct minimal_symbol *msymbol; | |
1956 | struct minimal_symbol *mfunsym; | |
1957 | ||
1958 | /* Info on best line seen so far, and where it starts, and its file. */ | |
1959 | ||
1960 | struct linetable_entry *best = NULL; | |
1961 | CORE_ADDR best_end = 0; | |
1962 | struct symtab *best_symtab = 0; | |
1963 | ||
1964 | /* Store here the first line number | |
1965 | of a file which contains the line at the smallest pc after PC. | |
1966 | If we don't find a line whose range contains PC, | |
1967 | we will use a line one less than this, | |
1968 | with a range from the start of that file to the first line's pc. */ | |
1969 | struct linetable_entry *alt = NULL; | |
1970 | struct symtab *alt_symtab = 0; | |
1971 | ||
1972 | /* Info on best line seen in this file. */ | |
1973 | ||
1974 | struct linetable_entry *prev; | |
1975 | ||
1976 | /* If this pc is not from the current frame, | |
1977 | it is the address of the end of a call instruction. | |
1978 | Quite likely that is the start of the following statement. | |
1979 | But what we want is the statement containing the instruction. | |
1980 | Fudge the pc to make sure we get that. */ | |
1981 | ||
fe39c653 | 1982 | init_sal (&val); /* initialize to zeroes */ |
c906108c | 1983 | |
b77b1eb7 JB |
1984 | /* It's tempting to assume that, if we can't find debugging info for |
1985 | any function enclosing PC, that we shouldn't search for line | |
1986 | number info, either. However, GAS can emit line number info for | |
1987 | assembly files --- very helpful when debugging hand-written | |
1988 | assembly code. In such a case, we'd have no debug info for the | |
1989 | function, but we would have line info. */ | |
648f4f79 | 1990 | |
c906108c SS |
1991 | if (notcurrent) |
1992 | pc -= 1; | |
1993 | ||
c5aa993b | 1994 | /* elz: added this because this function returned the wrong |
c906108c SS |
1995 | information if the pc belongs to a stub (import/export) |
1996 | to call a shlib function. This stub would be anywhere between | |
1997 | two functions in the target, and the line info was erroneously | |
1998 | taken to be the one of the line before the pc. | |
c5aa993b | 1999 | */ |
c906108c | 2000 | /* RT: Further explanation: |
c5aa993b | 2001 | |
c906108c SS |
2002 | * We have stubs (trampolines) inserted between procedures. |
2003 | * | |
2004 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
2005 | * exists in the main image. | |
2006 | * | |
2007 | * In the minimal symbol table, we have a bunch of symbols | |
2008 | * sorted by start address. The stubs are marked as "trampoline", | |
2009 | * the others appear as text. E.g.: | |
2010 | * | |
2011 | * Minimal symbol table for main image | |
2012 | * main: code for main (text symbol) | |
2013 | * shr1: stub (trampoline symbol) | |
2014 | * foo: code for foo (text symbol) | |
2015 | * ... | |
2016 | * Minimal symbol table for "shr1" image: | |
2017 | * ... | |
2018 | * shr1: code for shr1 (text symbol) | |
2019 | * ... | |
2020 | * | |
2021 | * So the code below is trying to detect if we are in the stub | |
2022 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
2023 | * and if found, do the symbolization from the real-code address | |
2024 | * rather than the stub address. | |
2025 | * | |
2026 | * Assumptions being made about the minimal symbol table: | |
2027 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
2028 | * if we're really in the trampoline. If we're beyond it (say | |
2029 | * we're in "foo" in the above example), it'll have a closer | |
2030 | * symbol (the "foo" text symbol for example) and will not | |
2031 | * return the trampoline. | |
2032 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
2033 | * corresponding to the trampoline, and whose address will | |
2034 | * be different than the trampoline address. I put in a sanity | |
2035 | * check for the address being the same, to avoid an | |
2036 | * infinite recursion. | |
2037 | */ | |
c5aa993b JM |
2038 | msymbol = lookup_minimal_symbol_by_pc (pc); |
2039 | if (msymbol != NULL) | |
c906108c | 2040 | if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline) |
c5aa993b | 2041 | { |
22abf04a | 2042 | mfunsym = lookup_minimal_symbol_text (DEPRECATED_SYMBOL_NAME (msymbol), NULL, NULL); |
c5aa993b JM |
2043 | if (mfunsym == NULL) |
2044 | /* I eliminated this warning since it is coming out | |
2045 | * in the following situation: | |
2046 | * gdb shmain // test program with shared libraries | |
2047 | * (gdb) break shr1 // function in shared lib | |
2048 | * Warning: In stub for ... | |
2049 | * In the above situation, the shared lib is not loaded yet, | |
2050 | * so of course we can't find the real func/line info, | |
2051 | * but the "break" still works, and the warning is annoying. | |
2052 | * So I commented out the warning. RT */ | |
22abf04a | 2053 | /* warning ("In stub for %s; unable to find real function/line info", DEPRECATED_SYMBOL_NAME (msymbol)) */ ; |
c5aa993b JM |
2054 | /* fall through */ |
2055 | else if (SYMBOL_VALUE (mfunsym) == SYMBOL_VALUE (msymbol)) | |
2056 | /* Avoid infinite recursion */ | |
2057 | /* See above comment about why warning is commented out */ | |
22abf04a | 2058 | /* warning ("In stub for %s; unable to find real function/line info", DEPRECATED_SYMBOL_NAME (msymbol)) */ ; |
c5aa993b JM |
2059 | /* fall through */ |
2060 | else | |
2061 | return find_pc_line (SYMBOL_VALUE (mfunsym), 0); | |
2062 | } | |
c906108c SS |
2063 | |
2064 | ||
2065 | s = find_pc_sect_symtab (pc, section); | |
2066 | if (!s) | |
2067 | { | |
2068 | /* if no symbol information, return previous pc */ | |
2069 | if (notcurrent) | |
2070 | pc++; | |
2071 | val.pc = pc; | |
2072 | return val; | |
2073 | } | |
2074 | ||
2075 | bv = BLOCKVECTOR (s); | |
2076 | ||
2077 | /* Look at all the symtabs that share this blockvector. | |
2078 | They all have the same apriori range, that we found was right; | |
2079 | but they have different line tables. */ | |
2080 | ||
2081 | for (; s && BLOCKVECTOR (s) == bv; s = s->next) | |
2082 | { | |
2083 | /* Find the best line in this symtab. */ | |
2084 | l = LINETABLE (s); | |
2085 | if (!l) | |
c5aa993b | 2086 | continue; |
c906108c SS |
2087 | len = l->nitems; |
2088 | if (len <= 0) | |
2089 | { | |
2090 | /* I think len can be zero if the symtab lacks line numbers | |
2091 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
2092 | I'm not sure which, and maybe it depends on the symbol | |
2093 | reader). */ | |
2094 | continue; | |
2095 | } | |
2096 | ||
2097 | prev = NULL; | |
2098 | item = l->item; /* Get first line info */ | |
2099 | ||
2100 | /* Is this file's first line closer than the first lines of other files? | |
c5aa993b | 2101 | If so, record this file, and its first line, as best alternate. */ |
c906108c SS |
2102 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
2103 | { | |
2104 | alt = item; | |
2105 | alt_symtab = s; | |
2106 | } | |
2107 | ||
2108 | for (i = 0; i < len; i++, item++) | |
2109 | { | |
2110 | /* Leave prev pointing to the linetable entry for the last line | |
2111 | that started at or before PC. */ | |
2112 | if (item->pc > pc) | |
2113 | break; | |
2114 | ||
2115 | prev = item; | |
2116 | } | |
2117 | ||
2118 | /* At this point, prev points at the line whose start addr is <= pc, and | |
c5aa993b JM |
2119 | item points at the next line. If we ran off the end of the linetable |
2120 | (pc >= start of the last line), then prev == item. If pc < start of | |
2121 | the first line, prev will not be set. */ | |
c906108c SS |
2122 | |
2123 | /* Is this file's best line closer than the best in the other files? | |
083ae935 DJ |
2124 | If so, record this file, and its best line, as best so far. Don't |
2125 | save prev if it represents the end of a function (i.e. line number | |
2126 | 0) instead of a real line. */ | |
c906108c | 2127 | |
083ae935 | 2128 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
2129 | { |
2130 | best = prev; | |
2131 | best_symtab = s; | |
25d53da1 KB |
2132 | |
2133 | /* Discard BEST_END if it's before the PC of the current BEST. */ | |
2134 | if (best_end <= best->pc) | |
2135 | best_end = 0; | |
c906108c | 2136 | } |
25d53da1 KB |
2137 | |
2138 | /* If another line (denoted by ITEM) is in the linetable and its | |
2139 | PC is after BEST's PC, but before the current BEST_END, then | |
2140 | use ITEM's PC as the new best_end. */ | |
2141 | if (best && i < len && item->pc > best->pc | |
2142 | && (best_end == 0 || best_end > item->pc)) | |
2143 | best_end = item->pc; | |
c906108c SS |
2144 | } |
2145 | ||
2146 | if (!best_symtab) | |
2147 | { | |
2148 | if (!alt_symtab) | |
2149 | { /* If we didn't find any line # info, just | |
2150 | return zeros. */ | |
2151 | val.pc = pc; | |
2152 | } | |
2153 | else | |
2154 | { | |
2155 | val.symtab = alt_symtab; | |
2156 | val.line = alt->line - 1; | |
2157 | ||
2158 | /* Don't return line 0, that means that we didn't find the line. */ | |
c5aa993b JM |
2159 | if (val.line == 0) |
2160 | ++val.line; | |
c906108c SS |
2161 | |
2162 | val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
2163 | val.end = alt->pc; | |
2164 | } | |
2165 | } | |
e8717518 FF |
2166 | else if (best->line == 0) |
2167 | { | |
2168 | /* If our best fit is in a range of PC's for which no line | |
2169 | number info is available (line number is zero) then we didn't | |
2170 | find any valid line information. */ | |
2171 | val.pc = pc; | |
2172 | } | |
c906108c SS |
2173 | else |
2174 | { | |
2175 | val.symtab = best_symtab; | |
2176 | val.line = best->line; | |
2177 | val.pc = best->pc; | |
2178 | if (best_end && (!alt || best_end < alt->pc)) | |
2179 | val.end = best_end; | |
2180 | else if (alt) | |
2181 | val.end = alt->pc; | |
2182 | else | |
2183 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
2184 | } | |
2185 | val.section = section; | |
2186 | return val; | |
2187 | } | |
2188 | ||
2189 | /* Backward compatibility (no section) */ | |
2190 | ||
2191 | struct symtab_and_line | |
fba45db2 | 2192 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 2193 | { |
c5aa993b | 2194 | asection *section; |
c906108c SS |
2195 | |
2196 | section = find_pc_overlay (pc); | |
2197 | if (pc_in_unmapped_range (pc, section)) | |
2198 | pc = overlay_mapped_address (pc, section); | |
2199 | return find_pc_sect_line (pc, section, notcurrent); | |
2200 | } | |
c906108c | 2201 | \f |
c906108c SS |
2202 | /* Find line number LINE in any symtab whose name is the same as |
2203 | SYMTAB. | |
2204 | ||
2205 | If found, return the symtab that contains the linetable in which it was | |
2206 | found, set *INDEX to the index in the linetable of the best entry | |
2207 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
2208 | exact match. | |
2209 | ||
2210 | If not found, return NULL. */ | |
2211 | ||
50641945 | 2212 | struct symtab * |
fba45db2 | 2213 | find_line_symtab (struct symtab *symtab, int line, int *index, int *exact_match) |
c906108c SS |
2214 | { |
2215 | int exact; | |
2216 | ||
2217 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
2218 | so far seen. */ | |
2219 | ||
2220 | int best_index; | |
2221 | struct linetable *best_linetable; | |
2222 | struct symtab *best_symtab; | |
2223 | ||
2224 | /* First try looking it up in the given symtab. */ | |
2225 | best_linetable = LINETABLE (symtab); | |
2226 | best_symtab = symtab; | |
2227 | best_index = find_line_common (best_linetable, line, &exact); | |
2228 | if (best_index < 0 || !exact) | |
2229 | { | |
2230 | /* Didn't find an exact match. So we better keep looking for | |
c5aa993b JM |
2231 | another symtab with the same name. In the case of xcoff, |
2232 | multiple csects for one source file (produced by IBM's FORTRAN | |
2233 | compiler) produce multiple symtabs (this is unavoidable | |
2234 | assuming csects can be at arbitrary places in memory and that | |
2235 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
2236 | |
2237 | /* BEST is the smallest linenumber > LINE so far seen, | |
c5aa993b JM |
2238 | or 0 if none has been seen so far. |
2239 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
2240 | int best; |
2241 | ||
2242 | struct objfile *objfile; | |
2243 | struct symtab *s; | |
2244 | ||
2245 | if (best_index >= 0) | |
2246 | best = best_linetable->item[best_index].line; | |
2247 | else | |
2248 | best = 0; | |
2249 | ||
2250 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
2251 | { |
2252 | struct linetable *l; | |
2253 | int ind; | |
c906108c | 2254 | |
c5aa993b JM |
2255 | if (!STREQ (symtab->filename, s->filename)) |
2256 | continue; | |
2257 | l = LINETABLE (s); | |
2258 | ind = find_line_common (l, line, &exact); | |
2259 | if (ind >= 0) | |
2260 | { | |
2261 | if (exact) | |
2262 | { | |
2263 | best_index = ind; | |
2264 | best_linetable = l; | |
2265 | best_symtab = s; | |
2266 | goto done; | |
2267 | } | |
2268 | if (best == 0 || l->item[ind].line < best) | |
2269 | { | |
2270 | best = l->item[ind].line; | |
2271 | best_index = ind; | |
2272 | best_linetable = l; | |
2273 | best_symtab = s; | |
2274 | } | |
2275 | } | |
2276 | } | |
c906108c | 2277 | } |
c5aa993b | 2278 | done: |
c906108c SS |
2279 | if (best_index < 0) |
2280 | return NULL; | |
2281 | ||
2282 | if (index) | |
2283 | *index = best_index; | |
2284 | if (exact_match) | |
2285 | *exact_match = exact; | |
2286 | ||
2287 | return best_symtab; | |
2288 | } | |
2289 | \f | |
2290 | /* Set the PC value for a given source file and line number and return true. | |
2291 | Returns zero for invalid line number (and sets the PC to 0). | |
2292 | The source file is specified with a struct symtab. */ | |
2293 | ||
2294 | int | |
fba45db2 | 2295 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
2296 | { |
2297 | struct linetable *l; | |
2298 | int ind; | |
2299 | ||
2300 | *pc = 0; | |
2301 | if (symtab == 0) | |
2302 | return 0; | |
2303 | ||
2304 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
2305 | if (symtab != NULL) | |
2306 | { | |
2307 | l = LINETABLE (symtab); | |
2308 | *pc = l->item[ind].pc; | |
2309 | return 1; | |
2310 | } | |
2311 | else | |
2312 | return 0; | |
2313 | } | |
2314 | ||
2315 | /* Find the range of pc values in a line. | |
2316 | Store the starting pc of the line into *STARTPTR | |
2317 | and the ending pc (start of next line) into *ENDPTR. | |
2318 | Returns 1 to indicate success. | |
2319 | Returns 0 if could not find the specified line. */ | |
2320 | ||
2321 | int | |
fba45db2 KB |
2322 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
2323 | CORE_ADDR *endptr) | |
c906108c SS |
2324 | { |
2325 | CORE_ADDR startaddr; | |
2326 | struct symtab_and_line found_sal; | |
2327 | ||
2328 | startaddr = sal.pc; | |
c5aa993b | 2329 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
c906108c SS |
2330 | return 0; |
2331 | ||
2332 | /* This whole function is based on address. For example, if line 10 has | |
2333 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
2334 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
2335 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
2336 | This also insures that we never give a range like "starts at 0x134 | |
2337 | and ends at 0x12c". */ | |
2338 | ||
2339 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
2340 | if (found_sal.line != sal.line) | |
2341 | { | |
2342 | /* The specified line (sal) has zero bytes. */ | |
2343 | *startptr = found_sal.pc; | |
2344 | *endptr = found_sal.pc; | |
2345 | } | |
2346 | else | |
2347 | { | |
2348 | *startptr = found_sal.pc; | |
2349 | *endptr = found_sal.end; | |
2350 | } | |
2351 | return 1; | |
2352 | } | |
2353 | ||
2354 | /* Given a line table and a line number, return the index into the line | |
2355 | table for the pc of the nearest line whose number is >= the specified one. | |
2356 | Return -1 if none is found. The value is >= 0 if it is an index. | |
2357 | ||
2358 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
2359 | ||
2360 | static int | |
fba45db2 KB |
2361 | find_line_common (register struct linetable *l, register int lineno, |
2362 | int *exact_match) | |
c906108c SS |
2363 | { |
2364 | register int i; | |
2365 | register int len; | |
2366 | ||
2367 | /* BEST is the smallest linenumber > LINENO so far seen, | |
2368 | or 0 if none has been seen so far. | |
2369 | BEST_INDEX identifies the item for it. */ | |
2370 | ||
2371 | int best_index = -1; | |
2372 | int best = 0; | |
2373 | ||
2374 | if (lineno <= 0) | |
2375 | return -1; | |
2376 | if (l == 0) | |
2377 | return -1; | |
2378 | ||
2379 | len = l->nitems; | |
2380 | for (i = 0; i < len; i++) | |
2381 | { | |
2382 | register struct linetable_entry *item = &(l->item[i]); | |
2383 | ||
2384 | if (item->line == lineno) | |
2385 | { | |
2386 | /* Return the first (lowest address) entry which matches. */ | |
2387 | *exact_match = 1; | |
2388 | return i; | |
2389 | } | |
2390 | ||
2391 | if (item->line > lineno && (best == 0 || item->line < best)) | |
2392 | { | |
2393 | best = item->line; | |
2394 | best_index = i; | |
2395 | } | |
2396 | } | |
2397 | ||
2398 | /* If we got here, we didn't get an exact match. */ | |
2399 | ||
2400 | *exact_match = 0; | |
2401 | return best_index; | |
2402 | } | |
2403 | ||
2404 | int | |
fba45db2 | 2405 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
2406 | { |
2407 | struct symtab_and_line sal; | |
2408 | sal = find_pc_line (pc, 0); | |
2409 | *startptr = sal.pc; | |
2410 | *endptr = sal.end; | |
2411 | return sal.symtab != 0; | |
2412 | } | |
2413 | ||
2414 | /* Given a function symbol SYM, find the symtab and line for the start | |
2415 | of the function. | |
2416 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
2417 | of real code inside the function. */ | |
2418 | ||
50641945 | 2419 | struct symtab_and_line |
fba45db2 | 2420 | find_function_start_sal (struct symbol *sym, int funfirstline) |
c906108c SS |
2421 | { |
2422 | CORE_ADDR pc; | |
2423 | struct symtab_and_line sal; | |
2424 | ||
2425 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2426 | fixup_symbol_section (sym, NULL); | |
2427 | if (funfirstline) | |
c5aa993b | 2428 | { /* skip "first line" of function (which is actually its prologue) */ |
c906108c SS |
2429 | asection *section = SYMBOL_BFD_SECTION (sym); |
2430 | /* If function is in an unmapped overlay, use its unmapped LMA | |
c5aa993b | 2431 | address, so that SKIP_PROLOGUE has something unique to work on */ |
c906108c SS |
2432 | if (section_is_overlay (section) && |
2433 | !section_is_mapped (section)) | |
2434 | pc = overlay_unmapped_address (pc, section); | |
2435 | ||
2436 | pc += FUNCTION_START_OFFSET; | |
b83266a0 | 2437 | pc = SKIP_PROLOGUE (pc); |
c906108c SS |
2438 | |
2439 | /* For overlays, map pc back into its mapped VMA range */ | |
2440 | pc = overlay_mapped_address (pc, section); | |
2441 | } | |
2442 | sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0); | |
2443 | ||
2444 | #ifdef PROLOGUE_FIRSTLINE_OVERLAP | |
2445 | /* Convex: no need to suppress code on first line, if any */ | |
2446 | sal.pc = pc; | |
2447 | #else | |
2448 | /* Check if SKIP_PROLOGUE left us in mid-line, and the next | |
2449 | line is still part of the same function. */ | |
2450 | if (sal.pc != pc | |
2451 | && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end | |
2452 | && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
2453 | { | |
2454 | /* First pc of next line */ | |
2455 | pc = sal.end; | |
2456 | /* Recalculate the line number (might not be N+1). */ | |
2457 | sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0); | |
2458 | } | |
2459 | sal.pc = pc; | |
2460 | #endif | |
2461 | ||
2462 | return sal; | |
2463 | } | |
50641945 | 2464 | |
c906108c SS |
2465 | /* If P is of the form "operator[ \t]+..." where `...' is |
2466 | some legitimate operator text, return a pointer to the | |
2467 | beginning of the substring of the operator text. | |
2468 | Otherwise, return "". */ | |
2469 | char * | |
fba45db2 | 2470 | operator_chars (char *p, char **end) |
c906108c SS |
2471 | { |
2472 | *end = ""; | |
2473 | if (strncmp (p, "operator", 8)) | |
2474 | return *end; | |
2475 | p += 8; | |
2476 | ||
2477 | /* Don't get faked out by `operator' being part of a longer | |
2478 | identifier. */ | |
c5aa993b | 2479 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
2480 | return *end; |
2481 | ||
2482 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
2483 | while (*p == ' ' || *p == '\t') | |
2484 | p++; | |
2485 | ||
2486 | /* Recognize 'operator TYPENAME'. */ | |
2487 | ||
c5aa993b | 2488 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 2489 | { |
c5aa993b JM |
2490 | register char *q = p + 1; |
2491 | while (isalnum (*q) || *q == '_' || *q == '$') | |
c906108c SS |
2492 | q++; |
2493 | *end = q; | |
2494 | return p; | |
2495 | } | |
2496 | ||
53e8ad3d MS |
2497 | while (*p) |
2498 | switch (*p) | |
2499 | { | |
2500 | case '\\': /* regexp quoting */ | |
2501 | if (p[1] == '*') | |
2502 | { | |
2503 | if (p[2] == '=') /* 'operator\*=' */ | |
2504 | *end = p + 3; | |
2505 | else /* 'operator\*' */ | |
2506 | *end = p + 2; | |
2507 | return p; | |
2508 | } | |
2509 | else if (p[1] == '[') | |
2510 | { | |
2511 | if (p[2] == ']') | |
2512 | error ("mismatched quoting on brackets, try 'operator\\[\\]'"); | |
2513 | else if (p[2] == '\\' && p[3] == ']') | |
2514 | { | |
2515 | *end = p + 4; /* 'operator\[\]' */ | |
2516 | return p; | |
2517 | } | |
2518 | else | |
2519 | error ("nothing is allowed between '[' and ']'"); | |
2520 | } | |
2521 | else | |
2522 | { | |
2523 | /* Gratuitous qoute: skip it and move on. */ | |
2524 | p++; | |
2525 | continue; | |
2526 | } | |
2527 | break; | |
2528 | case '!': | |
2529 | case '=': | |
2530 | case '*': | |
2531 | case '/': | |
2532 | case '%': | |
2533 | case '^': | |
2534 | if (p[1] == '=') | |
2535 | *end = p + 2; | |
2536 | else | |
2537 | *end = p + 1; | |
2538 | return p; | |
2539 | case '<': | |
2540 | case '>': | |
2541 | case '+': | |
2542 | case '-': | |
2543 | case '&': | |
2544 | case '|': | |
2545 | if (p[0] == '-' && p[1] == '>') | |
2546 | { | |
2547 | /* Struct pointer member operator 'operator->'. */ | |
2548 | if (p[2] == '*') | |
2549 | { | |
2550 | *end = p + 3; /* 'operator->*' */ | |
2551 | return p; | |
2552 | } | |
2553 | else if (p[2] == '\\') | |
2554 | { | |
2555 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
2556 | return p; | |
2557 | } | |
2558 | else | |
2559 | { | |
2560 | *end = p + 2; /* 'operator->' */ | |
2561 | return p; | |
2562 | } | |
2563 | } | |
2564 | if (p[1] == '=' || p[1] == p[0]) | |
2565 | *end = p + 2; | |
2566 | else | |
2567 | *end = p + 1; | |
2568 | return p; | |
2569 | case '~': | |
2570 | case ',': | |
c5aa993b | 2571 | *end = p + 1; |
53e8ad3d MS |
2572 | return p; |
2573 | case '(': | |
2574 | if (p[1] != ')') | |
2575 | error ("`operator ()' must be specified without whitespace in `()'"); | |
c5aa993b | 2576 | *end = p + 2; |
53e8ad3d MS |
2577 | return p; |
2578 | case '?': | |
2579 | if (p[1] != ':') | |
2580 | error ("`operator ?:' must be specified without whitespace in `?:'"); | |
2581 | *end = p + 2; | |
2582 | return p; | |
2583 | case '[': | |
2584 | if (p[1] != ']') | |
2585 | error ("`operator []' must be specified without whitespace in `[]'"); | |
2586 | *end = p + 2; | |
2587 | return p; | |
2588 | default: | |
2589 | error ("`operator %s' not supported", p); | |
2590 | break; | |
2591 | } | |
2592 | ||
c906108c SS |
2593 | *end = ""; |
2594 | return *end; | |
2595 | } | |
c906108c | 2596 | \f |
c5aa993b | 2597 | |
c94fdfd0 EZ |
2598 | /* If FILE is not already in the table of files, return zero; |
2599 | otherwise return non-zero. Optionally add FILE to the table if ADD | |
2600 | is non-zero. If *FIRST is non-zero, forget the old table | |
2601 | contents. */ | |
2602 | static int | |
2603 | filename_seen (const char *file, int add, int *first) | |
c906108c | 2604 | { |
c94fdfd0 EZ |
2605 | /* Table of files seen so far. */ |
2606 | static const char **tab = NULL; | |
c906108c SS |
2607 | /* Allocated size of tab in elements. |
2608 | Start with one 256-byte block (when using GNU malloc.c). | |
2609 | 24 is the malloc overhead when range checking is in effect. */ | |
2610 | static int tab_alloc_size = (256 - 24) / sizeof (char *); | |
2611 | /* Current size of tab in elements. */ | |
2612 | static int tab_cur_size; | |
c94fdfd0 | 2613 | const char **p; |
c906108c SS |
2614 | |
2615 | if (*first) | |
2616 | { | |
2617 | if (tab == NULL) | |
c94fdfd0 | 2618 | tab = (const char **) xmalloc (tab_alloc_size * sizeof (*tab)); |
c906108c SS |
2619 | tab_cur_size = 0; |
2620 | } | |
2621 | ||
c94fdfd0 | 2622 | /* Is FILE in tab? */ |
c906108c | 2623 | for (p = tab; p < tab + tab_cur_size; p++) |
c94fdfd0 EZ |
2624 | if (strcmp (*p, file) == 0) |
2625 | return 1; | |
2626 | ||
2627 | /* No; maybe add it to tab. */ | |
2628 | if (add) | |
c906108c | 2629 | { |
c94fdfd0 EZ |
2630 | if (tab_cur_size == tab_alloc_size) |
2631 | { | |
2632 | tab_alloc_size *= 2; | |
2633 | tab = (const char **) xrealloc ((char *) tab, | |
2634 | tab_alloc_size * sizeof (*tab)); | |
2635 | } | |
2636 | tab[tab_cur_size++] = file; | |
c906108c | 2637 | } |
c906108c | 2638 | |
c94fdfd0 EZ |
2639 | return 0; |
2640 | } | |
2641 | ||
2642 | /* Slave routine for sources_info. Force line breaks at ,'s. | |
2643 | NAME is the name to print and *FIRST is nonzero if this is the first | |
2644 | name printed. Set *FIRST to zero. */ | |
2645 | static void | |
2646 | output_source_filename (char *name, int *first) | |
2647 | { | |
2648 | /* Since a single source file can result in several partial symbol | |
2649 | tables, we need to avoid printing it more than once. Note: if | |
2650 | some of the psymtabs are read in and some are not, it gets | |
2651 | printed both under "Source files for which symbols have been | |
2652 | read" and "Source files for which symbols will be read in on | |
2653 | demand". I consider this a reasonable way to deal with the | |
2654 | situation. I'm not sure whether this can also happen for | |
2655 | symtabs; it doesn't hurt to check. */ | |
2656 | ||
2657 | /* Was NAME already seen? */ | |
2658 | if (filename_seen (name, 1, first)) | |
2659 | { | |
2660 | /* Yes; don't print it again. */ | |
2661 | return; | |
2662 | } | |
2663 | /* No; print it and reset *FIRST. */ | |
c906108c SS |
2664 | if (*first) |
2665 | { | |
2666 | *first = 0; | |
2667 | } | |
2668 | else | |
2669 | { | |
2670 | printf_filtered (", "); | |
2671 | } | |
2672 | ||
2673 | wrap_here (""); | |
2674 | fputs_filtered (name, gdb_stdout); | |
c5aa993b | 2675 | } |
c906108c SS |
2676 | |
2677 | static void | |
fba45db2 | 2678 | sources_info (char *ignore, int from_tty) |
c906108c SS |
2679 | { |
2680 | register struct symtab *s; | |
2681 | register struct partial_symtab *ps; | |
2682 | register struct objfile *objfile; | |
2683 | int first; | |
c5aa993b | 2684 | |
c906108c SS |
2685 | if (!have_full_symbols () && !have_partial_symbols ()) |
2686 | { | |
e85428fc | 2687 | error ("No symbol table is loaded. Use the \"file\" command."); |
c906108c | 2688 | } |
c5aa993b | 2689 | |
c906108c SS |
2690 | printf_filtered ("Source files for which symbols have been read in:\n\n"); |
2691 | ||
2692 | first = 1; | |
2693 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
2694 | { |
2695 | output_source_filename (s->filename, &first); | |
2696 | } | |
c906108c | 2697 | printf_filtered ("\n\n"); |
c5aa993b | 2698 | |
c906108c SS |
2699 | printf_filtered ("Source files for which symbols will be read in on demand:\n\n"); |
2700 | ||
2701 | first = 1; | |
2702 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
2703 | { |
2704 | if (!ps->readin) | |
2705 | { | |
2706 | output_source_filename (ps->filename, &first); | |
2707 | } | |
2708 | } | |
c906108c SS |
2709 | printf_filtered ("\n"); |
2710 | } | |
2711 | ||
2712 | static int | |
fd118b61 | 2713 | file_matches (char *file, char *files[], int nfiles) |
c906108c SS |
2714 | { |
2715 | int i; | |
2716 | ||
2717 | if (file != NULL && nfiles != 0) | |
2718 | { | |
2719 | for (i = 0; i < nfiles; i++) | |
c5aa993b | 2720 | { |
31889e00 | 2721 | if (strcmp (files[i], lbasename (file)) == 0) |
c5aa993b JM |
2722 | return 1; |
2723 | } | |
c906108c SS |
2724 | } |
2725 | else if (nfiles == 0) | |
2726 | return 1; | |
2727 | return 0; | |
2728 | } | |
2729 | ||
2730 | /* Free any memory associated with a search. */ | |
2731 | void | |
fba45db2 | 2732 | free_search_symbols (struct symbol_search *symbols) |
c906108c SS |
2733 | { |
2734 | struct symbol_search *p; | |
2735 | struct symbol_search *next; | |
2736 | ||
2737 | for (p = symbols; p != NULL; p = next) | |
2738 | { | |
2739 | next = p->next; | |
b8c9b27d | 2740 | xfree (p); |
c906108c SS |
2741 | } |
2742 | } | |
2743 | ||
5bd98722 AC |
2744 | static void |
2745 | do_free_search_symbols_cleanup (void *symbols) | |
2746 | { | |
2747 | free_search_symbols (symbols); | |
2748 | } | |
2749 | ||
2750 | struct cleanup * | |
2751 | make_cleanup_free_search_symbols (struct symbol_search *symbols) | |
2752 | { | |
2753 | return make_cleanup (do_free_search_symbols_cleanup, symbols); | |
2754 | } | |
2755 | ||
434d2d4f DJ |
2756 | /* Helper function for sort_search_symbols and qsort. Can only |
2757 | sort symbols, not minimal symbols. */ | |
2758 | static int | |
2759 | compare_search_syms (const void *sa, const void *sb) | |
2760 | { | |
2761 | struct symbol_search **sym_a = (struct symbol_search **) sa; | |
2762 | struct symbol_search **sym_b = (struct symbol_search **) sb; | |
2763 | ||
de5ad195 DC |
2764 | return strcmp (SYMBOL_PRINT_NAME ((*sym_a)->symbol), |
2765 | SYMBOL_PRINT_NAME ((*sym_b)->symbol)); | |
434d2d4f DJ |
2766 | } |
2767 | ||
2768 | /* Sort the ``nfound'' symbols in the list after prevtail. Leave | |
2769 | prevtail where it is, but update its next pointer to point to | |
2770 | the first of the sorted symbols. */ | |
2771 | static struct symbol_search * | |
2772 | sort_search_symbols (struct symbol_search *prevtail, int nfound) | |
2773 | { | |
2774 | struct symbol_search **symbols, *symp, *old_next; | |
2775 | int i; | |
2776 | ||
2777 | symbols = (struct symbol_search **) xmalloc (sizeof (struct symbol_search *) | |
2778 | * nfound); | |
2779 | symp = prevtail->next; | |
2780 | for (i = 0; i < nfound; i++) | |
2781 | { | |
2782 | symbols[i] = symp; | |
2783 | symp = symp->next; | |
2784 | } | |
2785 | /* Generally NULL. */ | |
2786 | old_next = symp; | |
2787 | ||
2788 | qsort (symbols, nfound, sizeof (struct symbol_search *), | |
2789 | compare_search_syms); | |
2790 | ||
2791 | symp = prevtail; | |
2792 | for (i = 0; i < nfound; i++) | |
2793 | { | |
2794 | symp->next = symbols[i]; | |
2795 | symp = symp->next; | |
2796 | } | |
2797 | symp->next = old_next; | |
2798 | ||
8ed32cc0 | 2799 | xfree (symbols); |
434d2d4f DJ |
2800 | return symp; |
2801 | } | |
5bd98722 | 2802 | |
c906108c SS |
2803 | /* Search the symbol table for matches to the regular expression REGEXP, |
2804 | returning the results in *MATCHES. | |
2805 | ||
2806 | Only symbols of KIND are searched: | |
c5aa993b JM |
2807 | FUNCTIONS_NAMESPACE - search all functions |
2808 | TYPES_NAMESPACE - search all type names | |
2809 | METHODS_NAMESPACE - search all methods NOT IMPLEMENTED | |
2810 | VARIABLES_NAMESPACE - search all symbols, excluding functions, type names, | |
2811 | and constants (enums) | |
c906108c SS |
2812 | |
2813 | free_search_symbols should be called when *MATCHES is no longer needed. | |
434d2d4f DJ |
2814 | |
2815 | The results are sorted locally; each symtab's global and static blocks are | |
2816 | separately alphabetized. | |
c5aa993b | 2817 | */ |
c906108c | 2818 | void |
fd118b61 KB |
2819 | search_symbols (char *regexp, namespace_enum kind, int nfiles, char *files[], |
2820 | struct symbol_search **matches) | |
c906108c SS |
2821 | { |
2822 | register struct symtab *s; | |
2823 | register struct partial_symtab *ps; | |
2824 | register struct blockvector *bv; | |
2825 | struct blockvector *prev_bv = 0; | |
2826 | register struct block *b; | |
2827 | register int i = 0; | |
2828 | register int j; | |
2829 | register struct symbol *sym; | |
2830 | struct partial_symbol **psym; | |
2831 | struct objfile *objfile; | |
2832 | struct minimal_symbol *msymbol; | |
2833 | char *val; | |
2834 | int found_misc = 0; | |
2835 | static enum minimal_symbol_type types[] | |
c5aa993b JM |
2836 | = |
2837 | {mst_data, mst_text, mst_abs, mst_unknown}; | |
c906108c | 2838 | static enum minimal_symbol_type types2[] |
c5aa993b JM |
2839 | = |
2840 | {mst_bss, mst_file_text, mst_abs, mst_unknown}; | |
c906108c | 2841 | static enum minimal_symbol_type types3[] |
c5aa993b JM |
2842 | = |
2843 | {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown}; | |
c906108c | 2844 | static enum minimal_symbol_type types4[] |
c5aa993b JM |
2845 | = |
2846 | {mst_file_bss, mst_text, mst_abs, mst_unknown}; | |
c906108c SS |
2847 | enum minimal_symbol_type ourtype; |
2848 | enum minimal_symbol_type ourtype2; | |
2849 | enum minimal_symbol_type ourtype3; | |
2850 | enum minimal_symbol_type ourtype4; | |
2851 | struct symbol_search *sr; | |
2852 | struct symbol_search *psr; | |
2853 | struct symbol_search *tail; | |
2854 | struct cleanup *old_chain = NULL; | |
2855 | ||
993f3aa5 | 2856 | if (kind < VARIABLES_NAMESPACE) |
c906108c SS |
2857 | error ("must search on specific namespace"); |
2858 | ||
52204a0b DT |
2859 | ourtype = types[(int) (kind - VARIABLES_NAMESPACE)]; |
2860 | ourtype2 = types2[(int) (kind - VARIABLES_NAMESPACE)]; | |
2861 | ourtype3 = types3[(int) (kind - VARIABLES_NAMESPACE)]; | |
2862 | ourtype4 = types4[(int) (kind - VARIABLES_NAMESPACE)]; | |
c906108c SS |
2863 | |
2864 | sr = *matches = NULL; | |
2865 | tail = NULL; | |
2866 | ||
2867 | if (regexp != NULL) | |
2868 | { | |
2869 | /* Make sure spacing is right for C++ operators. | |
2870 | This is just a courtesy to make the matching less sensitive | |
2871 | to how many spaces the user leaves between 'operator' | |
2872 | and <TYPENAME> or <OPERATOR>. */ | |
2873 | char *opend; | |
2874 | char *opname = operator_chars (regexp, &opend); | |
2875 | if (*opname) | |
c5aa993b JM |
2876 | { |
2877 | int fix = -1; /* -1 means ok; otherwise number of spaces needed. */ | |
2878 | if (isalpha (*opname) || *opname == '_' || *opname == '$') | |
2879 | { | |
2880 | /* There should 1 space between 'operator' and 'TYPENAME'. */ | |
2881 | if (opname[-1] != ' ' || opname[-2] == ' ') | |
2882 | fix = 1; | |
2883 | } | |
2884 | else | |
2885 | { | |
2886 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ | |
2887 | if (opname[-1] == ' ') | |
2888 | fix = 0; | |
2889 | } | |
2890 | /* If wrong number of spaces, fix it. */ | |
2891 | if (fix >= 0) | |
2892 | { | |
045f55a6 | 2893 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
c5aa993b JM |
2894 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
2895 | regexp = tmp; | |
2896 | } | |
2897 | } | |
2898 | ||
c906108c | 2899 | if (0 != (val = re_comp (regexp))) |
c5aa993b | 2900 | error ("Invalid regexp (%s): %s", val, regexp); |
c906108c SS |
2901 | } |
2902 | ||
2903 | /* Search through the partial symtabs *first* for all symbols | |
2904 | matching the regexp. That way we don't have to reproduce all of | |
2905 | the machinery below. */ | |
2906 | ||
2907 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
2908 | { |
2909 | struct partial_symbol **bound, **gbound, **sbound; | |
2910 | int keep_going = 1; | |
2911 | ||
2912 | if (ps->readin) | |
2913 | continue; | |
2914 | ||
2915 | gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms; | |
2916 | sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms; | |
2917 | bound = gbound; | |
2918 | ||
2919 | /* Go through all of the symbols stored in a partial | |
2920 | symtab in one loop. */ | |
2921 | psym = objfile->global_psymbols.list + ps->globals_offset; | |
2922 | while (keep_going) | |
2923 | { | |
2924 | if (psym >= bound) | |
2925 | { | |
2926 | if (bound == gbound && ps->n_static_syms != 0) | |
2927 | { | |
2928 | psym = objfile->static_psymbols.list + ps->statics_offset; | |
2929 | bound = sbound; | |
2930 | } | |
2931 | else | |
2932 | keep_going = 0; | |
2933 | continue; | |
2934 | } | |
2935 | else | |
2936 | { | |
2937 | QUIT; | |
2938 | ||
2939 | /* If it would match (logic taken from loop below) | |
2940 | load the file and go on to the next one */ | |
2941 | if (file_matches (ps->filename, files, nfiles) | |
25120b0d DC |
2942 | && ((regexp == NULL |
2943 | || re_exec (SYMBOL_NATURAL_NAME (*psym)) != 0) | |
c5aa993b JM |
2944 | && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (*psym) != LOC_TYPEDEF |
2945 | && SYMBOL_CLASS (*psym) != LOC_BLOCK) | |
2946 | || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK) | |
2947 | || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_TYPEDEF) | |
2948 | || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK)))) | |
2949 | { | |
2950 | PSYMTAB_TO_SYMTAB (ps); | |
2951 | keep_going = 0; | |
2952 | } | |
2953 | } | |
2954 | psym++; | |
2955 | } | |
2956 | } | |
c906108c SS |
2957 | |
2958 | /* Here, we search through the minimal symbol tables for functions | |
2959 | and variables that match, and force their symbols to be read. | |
2960 | This is in particular necessary for demangled variable names, | |
2961 | which are no longer put into the partial symbol tables. | |
2962 | The symbol will then be found during the scan of symtabs below. | |
2963 | ||
2964 | For functions, find_pc_symtab should succeed if we have debug info | |
2965 | for the function, for variables we have to call lookup_symbol | |
2966 | to determine if the variable has debug info. | |
2967 | If the lookup fails, set found_misc so that we will rescan to print | |
2968 | any matching symbols without debug info. | |
c5aa993b | 2969 | */ |
c906108c SS |
2970 | |
2971 | if (nfiles == 0 && (kind == VARIABLES_NAMESPACE || kind == FUNCTIONS_NAMESPACE)) | |
2972 | { | |
2973 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
2974 | { |
2975 | if (MSYMBOL_TYPE (msymbol) == ourtype || | |
2976 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
2977 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
2978 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
2979 | { | |
25120b0d DC |
2980 | if (regexp == NULL |
2981 | || re_exec (SYMBOL_NATURAL_NAME (msymbol)) != 0) | |
c5aa993b JM |
2982 | { |
2983 | if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))) | |
2984 | { | |
b1262a02 DC |
2985 | /* FIXME: carlton/2003-02-04: Given that the |
2986 | semantics of lookup_symbol keeps on changing | |
2987 | slightly, it would be a nice idea if we had a | |
2988 | function lookup_symbol_minsym that found the | |
2989 | symbol associated to a given minimal symbol (if | |
2990 | any). */ | |
2991 | if (kind == FUNCTIONS_NAMESPACE | |
22abf04a | 2992 | || lookup_symbol (DEPRECATED_SYMBOL_NAME (msymbol), |
b1262a02 DC |
2993 | (struct block *) NULL, |
2994 | VAR_NAMESPACE, | |
2995 | 0, (struct symtab **) NULL) == NULL) | |
2996 | found_misc = 1; | |
c5aa993b JM |
2997 | } |
2998 | } | |
2999 | } | |
3000 | } | |
c906108c SS |
3001 | } |
3002 | ||
3003 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
3004 | { |
3005 | bv = BLOCKVECTOR (s); | |
3006 | /* Often many files share a blockvector. | |
3007 | Scan each blockvector only once so that | |
3008 | we don't get every symbol many times. | |
3009 | It happens that the first symtab in the list | |
3010 | for any given blockvector is the main file. */ | |
3011 | if (bv != prev_bv) | |
3012 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) | |
3013 | { | |
434d2d4f DJ |
3014 | struct symbol_search *prevtail = tail; |
3015 | int nfound = 0; | |
c5aa993b | 3016 | b = BLOCKVECTOR_BLOCK (bv, i); |
261397f8 | 3017 | ALL_BLOCK_SYMBOLS (b, j, sym) |
c5aa993b JM |
3018 | { |
3019 | QUIT; | |
c5aa993b | 3020 | if (file_matches (s->filename, files, nfiles) |
25120b0d DC |
3021 | && ((regexp == NULL |
3022 | || re_exec (SYMBOL_NATURAL_NAME (sym)) != 0) | |
c5aa993b JM |
3023 | && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (sym) != LOC_TYPEDEF |
3024 | && SYMBOL_CLASS (sym) != LOC_BLOCK | |
3025 | && SYMBOL_CLASS (sym) != LOC_CONST) | |
3026 | || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
3027 | || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
3028 | || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK)))) | |
3029 | { | |
3030 | /* match */ | |
3031 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
3032 | psr->block = i; | |
3033 | psr->symtab = s; | |
3034 | psr->symbol = sym; | |
3035 | psr->msymbol = NULL; | |
3036 | psr->next = NULL; | |
3037 | if (tail == NULL) | |
434d2d4f | 3038 | sr = psr; |
c5aa993b JM |
3039 | else |
3040 | tail->next = psr; | |
3041 | tail = psr; | |
434d2d4f DJ |
3042 | nfound ++; |
3043 | } | |
3044 | } | |
3045 | if (nfound > 0) | |
3046 | { | |
3047 | if (prevtail == NULL) | |
3048 | { | |
3049 | struct symbol_search dummy; | |
3050 | ||
3051 | dummy.next = sr; | |
3052 | tail = sort_search_symbols (&dummy, nfound); | |
3053 | sr = dummy.next; | |
3054 | ||
3055 | old_chain = make_cleanup_free_search_symbols (sr); | |
c5aa993b | 3056 | } |
434d2d4f DJ |
3057 | else |
3058 | tail = sort_search_symbols (prevtail, nfound); | |
c5aa993b JM |
3059 | } |
3060 | } | |
3061 | prev_bv = bv; | |
3062 | } | |
c906108c SS |
3063 | |
3064 | /* If there are no eyes, avoid all contact. I mean, if there are | |
3065 | no debug symbols, then print directly from the msymbol_vector. */ | |
3066 | ||
3067 | if (found_misc || kind != FUNCTIONS_NAMESPACE) | |
3068 | { | |
3069 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
3070 | { |
3071 | if (MSYMBOL_TYPE (msymbol) == ourtype || | |
3072 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
3073 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
3074 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
3075 | { | |
25120b0d DC |
3076 | if (regexp == NULL |
3077 | || re_exec (SYMBOL_NATURAL_NAME (msymbol)) != 0) | |
c5aa993b JM |
3078 | { |
3079 | /* Functions: Look up by address. */ | |
3080 | if (kind != FUNCTIONS_NAMESPACE || | |
3081 | (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))) | |
3082 | { | |
3083 | /* Variables/Absolutes: Look up by name */ | |
22abf04a | 3084 | if (lookup_symbol (DEPRECATED_SYMBOL_NAME (msymbol), |
c5aa993b JM |
3085 | (struct block *) NULL, VAR_NAMESPACE, |
3086 | 0, (struct symtab **) NULL) == NULL) | |
3087 | { | |
3088 | /* match */ | |
3089 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
3090 | psr->block = i; | |
3091 | psr->msymbol = msymbol; | |
3092 | psr->symtab = NULL; | |
3093 | psr->symbol = NULL; | |
3094 | psr->next = NULL; | |
3095 | if (tail == NULL) | |
3096 | { | |
3097 | sr = psr; | |
5bd98722 | 3098 | old_chain = make_cleanup_free_search_symbols (sr); |
c5aa993b JM |
3099 | } |
3100 | else | |
3101 | tail->next = psr; | |
3102 | tail = psr; | |
3103 | } | |
3104 | } | |
3105 | } | |
3106 | } | |
3107 | } | |
c906108c SS |
3108 | } |
3109 | ||
3110 | *matches = sr; | |
3111 | if (sr != NULL) | |
3112 | discard_cleanups (old_chain); | |
3113 | } | |
3114 | ||
3115 | /* Helper function for symtab_symbol_info, this function uses | |
3116 | the data returned from search_symbols() to print information | |
3117 | regarding the match to gdb_stdout. | |
c5aa993b | 3118 | */ |
c906108c | 3119 | static void |
fba45db2 KB |
3120 | print_symbol_info (namespace_enum kind, struct symtab *s, struct symbol *sym, |
3121 | int block, char *last) | |
c906108c SS |
3122 | { |
3123 | if (last == NULL || strcmp (last, s->filename) != 0) | |
3124 | { | |
3125 | fputs_filtered ("\nFile ", gdb_stdout); | |
3126 | fputs_filtered (s->filename, gdb_stdout); | |
3127 | fputs_filtered (":\n", gdb_stdout); | |
3128 | } | |
3129 | ||
3130 | if (kind != TYPES_NAMESPACE && block == STATIC_BLOCK) | |
3131 | printf_filtered ("static "); | |
c5aa993b | 3132 | |
c906108c SS |
3133 | /* Typedef that is not a C++ class */ |
3134 | if (kind == TYPES_NAMESPACE | |
3135 | && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE) | |
a5238fbc | 3136 | typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout); |
c906108c | 3137 | /* variable, func, or typedef-that-is-c++-class */ |
c5aa993b JM |
3138 | else if (kind < TYPES_NAMESPACE || |
3139 | (kind == TYPES_NAMESPACE && | |
3140 | SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE)) | |
c906108c SS |
3141 | { |
3142 | type_print (SYMBOL_TYPE (sym), | |
c5aa993b | 3143 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
de5ad195 | 3144 | ? "" : SYMBOL_PRINT_NAME (sym)), |
c5aa993b | 3145 | gdb_stdout, 0); |
c906108c SS |
3146 | |
3147 | printf_filtered (";\n"); | |
3148 | } | |
c906108c SS |
3149 | } |
3150 | ||
3151 | /* This help function for symtab_symbol_info() prints information | |
3152 | for non-debugging symbols to gdb_stdout. | |
c5aa993b | 3153 | */ |
c906108c | 3154 | static void |
fba45db2 | 3155 | print_msymbol_info (struct minimal_symbol *msymbol) |
c906108c | 3156 | { |
3ac4495a MS |
3157 | char *tmp; |
3158 | ||
3159 | if (TARGET_ADDR_BIT <= 32) | |
14a5e767 AC |
3160 | tmp = local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol) |
3161 | & (CORE_ADDR) 0xffffffff, | |
3162 | "08l"); | |
3ac4495a | 3163 | else |
14a5e767 AC |
3164 | tmp = local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol), |
3165 | "016l"); | |
3ac4495a | 3166 | printf_filtered ("%s %s\n", |
de5ad195 | 3167 | tmp, SYMBOL_PRINT_NAME (msymbol)); |
c906108c SS |
3168 | } |
3169 | ||
3170 | /* This is the guts of the commands "info functions", "info types", and | |
3171 | "info variables". It calls search_symbols to find all matches and then | |
3172 | print_[m]symbol_info to print out some useful information about the | |
3173 | matches. | |
c5aa993b | 3174 | */ |
c906108c | 3175 | static void |
fba45db2 | 3176 | symtab_symbol_info (char *regexp, namespace_enum kind, int from_tty) |
c906108c SS |
3177 | { |
3178 | static char *classnames[] | |
c5aa993b JM |
3179 | = |
3180 | {"variable", "function", "type", "method"}; | |
c906108c SS |
3181 | struct symbol_search *symbols; |
3182 | struct symbol_search *p; | |
3183 | struct cleanup *old_chain; | |
3184 | char *last_filename = NULL; | |
3185 | int first = 1; | |
3186 | ||
3187 | /* must make sure that if we're interrupted, symbols gets freed */ | |
3188 | search_symbols (regexp, kind, 0, (char **) NULL, &symbols); | |
5bd98722 | 3189 | old_chain = make_cleanup_free_search_symbols (symbols); |
c906108c SS |
3190 | |
3191 | printf_filtered (regexp | |
c5aa993b JM |
3192 | ? "All %ss matching regular expression \"%s\":\n" |
3193 | : "All defined %ss:\n", | |
52204a0b | 3194 | classnames[(int) (kind - VARIABLES_NAMESPACE)], regexp); |
c906108c SS |
3195 | |
3196 | for (p = symbols; p != NULL; p = p->next) | |
3197 | { | |
3198 | QUIT; | |
3199 | ||
3200 | if (p->msymbol != NULL) | |
c5aa993b JM |
3201 | { |
3202 | if (first) | |
3203 | { | |
3204 | printf_filtered ("\nNon-debugging symbols:\n"); | |
3205 | first = 0; | |
3206 | } | |
3207 | print_msymbol_info (p->msymbol); | |
3208 | } | |
c906108c | 3209 | else |
c5aa993b JM |
3210 | { |
3211 | print_symbol_info (kind, | |
3212 | p->symtab, | |
3213 | p->symbol, | |
3214 | p->block, | |
3215 | last_filename); | |
3216 | last_filename = p->symtab->filename; | |
3217 | } | |
c906108c SS |
3218 | } |
3219 | ||
3220 | do_cleanups (old_chain); | |
3221 | } | |
3222 | ||
3223 | static void | |
fba45db2 | 3224 | variables_info (char *regexp, int from_tty) |
c906108c SS |
3225 | { |
3226 | symtab_symbol_info (regexp, VARIABLES_NAMESPACE, from_tty); | |
3227 | } | |
3228 | ||
3229 | static void | |
fba45db2 | 3230 | functions_info (char *regexp, int from_tty) |
c906108c SS |
3231 | { |
3232 | symtab_symbol_info (regexp, FUNCTIONS_NAMESPACE, from_tty); | |
3233 | } | |
3234 | ||
357e46e7 | 3235 | |
c906108c | 3236 | static void |
fba45db2 | 3237 | types_info (char *regexp, int from_tty) |
c906108c SS |
3238 | { |
3239 | symtab_symbol_info (regexp, TYPES_NAMESPACE, from_tty); | |
3240 | } | |
3241 | ||
c906108c | 3242 | /* Breakpoint all functions matching regular expression. */ |
8926118c | 3243 | |
8b93c638 | 3244 | void |
fba45db2 | 3245 | rbreak_command_wrapper (char *regexp, int from_tty) |
8b93c638 JM |
3246 | { |
3247 | rbreak_command (regexp, from_tty); | |
3248 | } | |
8926118c | 3249 | |
c906108c | 3250 | static void |
fba45db2 | 3251 | rbreak_command (char *regexp, int from_tty) |
c906108c SS |
3252 | { |
3253 | struct symbol_search *ss; | |
3254 | struct symbol_search *p; | |
3255 | struct cleanup *old_chain; | |
3256 | ||
3257 | search_symbols (regexp, FUNCTIONS_NAMESPACE, 0, (char **) NULL, &ss); | |
5bd98722 | 3258 | old_chain = make_cleanup_free_search_symbols (ss); |
c906108c SS |
3259 | |
3260 | for (p = ss; p != NULL; p = p->next) | |
3261 | { | |
3262 | if (p->msymbol == NULL) | |
c5aa993b JM |
3263 | { |
3264 | char *string = (char *) alloca (strlen (p->symtab->filename) | |
22abf04a | 3265 | + strlen (DEPRECATED_SYMBOL_NAME (p->symbol)) |
c5aa993b JM |
3266 | + 4); |
3267 | strcpy (string, p->symtab->filename); | |
3268 | strcat (string, ":'"); | |
22abf04a | 3269 | strcat (string, DEPRECATED_SYMBOL_NAME (p->symbol)); |
c5aa993b JM |
3270 | strcat (string, "'"); |
3271 | break_command (string, from_tty); | |
3272 | print_symbol_info (FUNCTIONS_NAMESPACE, | |
3273 | p->symtab, | |
3274 | p->symbol, | |
3275 | p->block, | |
3276 | p->symtab->filename); | |
3277 | } | |
c906108c | 3278 | else |
c5aa993b | 3279 | { |
22abf04a | 3280 | break_command (DEPRECATED_SYMBOL_NAME (p->msymbol), from_tty); |
c5aa993b | 3281 | printf_filtered ("<function, no debug info> %s;\n", |
de5ad195 | 3282 | SYMBOL_PRINT_NAME (p->msymbol)); |
c5aa993b | 3283 | } |
c906108c SS |
3284 | } |
3285 | ||
3286 | do_cleanups (old_chain); | |
3287 | } | |
c906108c | 3288 | \f |
c5aa993b | 3289 | |
c906108c SS |
3290 | /* Helper routine for make_symbol_completion_list. */ |
3291 | ||
3292 | static int return_val_size; | |
3293 | static int return_val_index; | |
3294 | static char **return_val; | |
3295 | ||
3296 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ | |
3297 | do { \ | |
3298 | if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \ | |
3299 | /* Put only the mangled name on the list. */ \ | |
3300 | /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \ | |
3301 | /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \ | |
3302 | completion_list_add_name \ | |
3303 | (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \ | |
3304 | else \ | |
3305 | completion_list_add_name \ | |
22abf04a | 3306 | (DEPRECATED_SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \ |
c906108c SS |
3307 | } while (0) |
3308 | ||
3309 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b JM |
3310 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
3311 | characters. If so, add it to the current completion list. */ | |
c906108c SS |
3312 | |
3313 | static void | |
fba45db2 KB |
3314 | completion_list_add_name (char *symname, char *sym_text, int sym_text_len, |
3315 | char *text, char *word) | |
c906108c SS |
3316 | { |
3317 | int newsize; | |
3318 | int i; | |
3319 | ||
3320 | /* clip symbols that cannot match */ | |
3321 | ||
3322 | if (strncmp (symname, sym_text, sym_text_len) != 0) | |
3323 | { | |
3324 | return; | |
3325 | } | |
3326 | ||
c906108c SS |
3327 | /* We have a match for a completion, so add SYMNAME to the current list |
3328 | of matches. Note that the name is moved to freshly malloc'd space. */ | |
3329 | ||
3330 | { | |
3331 | char *new; | |
3332 | if (word == sym_text) | |
3333 | { | |
3334 | new = xmalloc (strlen (symname) + 5); | |
3335 | strcpy (new, symname); | |
3336 | } | |
3337 | else if (word > sym_text) | |
3338 | { | |
3339 | /* Return some portion of symname. */ | |
3340 | new = xmalloc (strlen (symname) + 5); | |
3341 | strcpy (new, symname + (word - sym_text)); | |
3342 | } | |
3343 | else | |
3344 | { | |
3345 | /* Return some of SYM_TEXT plus symname. */ | |
3346 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
3347 | strncpy (new, word, sym_text - word); | |
3348 | new[sym_text - word] = '\0'; | |
3349 | strcat (new, symname); | |
3350 | } | |
3351 | ||
c906108c SS |
3352 | if (return_val_index + 3 > return_val_size) |
3353 | { | |
3354 | newsize = (return_val_size *= 2) * sizeof (char *); | |
3355 | return_val = (char **) xrealloc ((char *) return_val, newsize); | |
3356 | } | |
3357 | return_val[return_val_index++] = new; | |
3358 | return_val[return_val_index] = NULL; | |
3359 | } | |
3360 | } | |
3361 | ||
c94fdfd0 EZ |
3362 | /* Return a NULL terminated array of all symbols (regardless of class) |
3363 | which begin by matching TEXT. If the answer is no symbols, then | |
3364 | the return value is an array which contains only a NULL pointer. | |
c906108c SS |
3365 | |
3366 | Problem: All of the symbols have to be copied because readline frees them. | |
3367 | I'm not going to worry about this; hopefully there won't be that many. */ | |
3368 | ||
3369 | char ** | |
fba45db2 | 3370 | make_symbol_completion_list (char *text, char *word) |
c906108c SS |
3371 | { |
3372 | register struct symbol *sym; | |
3373 | register struct symtab *s; | |
3374 | register struct partial_symtab *ps; | |
3375 | register struct minimal_symbol *msymbol; | |
3376 | register struct objfile *objfile; | |
3377 | register struct block *b, *surrounding_static_block = 0; | |
3378 | register int i, j; | |
3379 | struct partial_symbol **psym; | |
3380 | /* The symbol we are completing on. Points in same buffer as text. */ | |
3381 | char *sym_text; | |
3382 | /* Length of sym_text. */ | |
3383 | int sym_text_len; | |
3384 | ||
3385 | /* Now look for the symbol we are supposed to complete on. | |
3386 | FIXME: This should be language-specific. */ | |
3387 | { | |
3388 | char *p; | |
3389 | char quote_found; | |
3390 | char *quote_pos = NULL; | |
3391 | ||
3392 | /* First see if this is a quoted string. */ | |
3393 | quote_found = '\0'; | |
3394 | for (p = text; *p != '\0'; ++p) | |
3395 | { | |
3396 | if (quote_found != '\0') | |
3397 | { | |
3398 | if (*p == quote_found) | |
3399 | /* Found close quote. */ | |
3400 | quote_found = '\0'; | |
3401 | else if (*p == '\\' && p[1] == quote_found) | |
3402 | /* A backslash followed by the quote character | |
c5aa993b | 3403 | doesn't end the string. */ |
c906108c SS |
3404 | ++p; |
3405 | } | |
3406 | else if (*p == '\'' || *p == '"') | |
3407 | { | |
3408 | quote_found = *p; | |
3409 | quote_pos = p; | |
3410 | } | |
3411 | } | |
3412 | if (quote_found == '\'') | |
3413 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3414 | sym_text = quote_pos + 1; | |
3415 | else if (quote_found == '"') | |
3416 | /* A double-quoted string is never a symbol, nor does it make sense | |
c5aa993b | 3417 | to complete it any other way. */ |
c94fdfd0 EZ |
3418 | { |
3419 | return_val = (char **) xmalloc (sizeof (char *)); | |
3420 | return_val[0] = NULL; | |
3421 | return return_val; | |
3422 | } | |
c906108c SS |
3423 | else |
3424 | { | |
3425 | /* It is not a quoted string. Break it based on the characters | |
3426 | which are in symbols. */ | |
3427 | while (p > text) | |
3428 | { | |
3429 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
3430 | --p; | |
3431 | else | |
3432 | break; | |
3433 | } | |
3434 | sym_text = p; | |
3435 | } | |
3436 | } | |
3437 | ||
3438 | sym_text_len = strlen (sym_text); | |
3439 | ||
3440 | return_val_size = 100; | |
3441 | return_val_index = 0; | |
3442 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
3443 | return_val[0] = NULL; | |
3444 | ||
3445 | /* Look through the partial symtabs for all symbols which begin | |
3446 | by matching SYM_TEXT. Add each one that you find to the list. */ | |
3447 | ||
3448 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
3449 | { |
3450 | /* If the psymtab's been read in we'll get it when we search | |
3451 | through the blockvector. */ | |
3452 | if (ps->readin) | |
3453 | continue; | |
3454 | ||
3455 | for (psym = objfile->global_psymbols.list + ps->globals_offset; | |
3456 | psym < (objfile->global_psymbols.list + ps->globals_offset | |
3457 | + ps->n_global_syms); | |
3458 | psym++) | |
3459 | { | |
3460 | /* If interrupted, then quit. */ | |
3461 | QUIT; | |
3462 | COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word); | |
3463 | } | |
3464 | ||
3465 | for (psym = objfile->static_psymbols.list + ps->statics_offset; | |
3466 | psym < (objfile->static_psymbols.list + ps->statics_offset | |
3467 | + ps->n_static_syms); | |
3468 | psym++) | |
3469 | { | |
3470 | QUIT; | |
3471 | COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word); | |
3472 | } | |
3473 | } | |
c906108c SS |
3474 | |
3475 | /* At this point scan through the misc symbol vectors and add each | |
3476 | symbol you find to the list. Eventually we want to ignore | |
3477 | anything that isn't a text symbol (everything else will be | |
3478 | handled by the psymtab code above). */ | |
3479 | ||
3480 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
3481 | { |
3482 | QUIT; | |
3483 | COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word); | |
3484 | } | |
c906108c SS |
3485 | |
3486 | /* Search upwards from currently selected frame (so that we can | |
3487 | complete on local vars. */ | |
3488 | ||
ae767bfb | 3489 | for (b = get_selected_block (0); b != NULL; b = BLOCK_SUPERBLOCK (b)) |
c906108c SS |
3490 | { |
3491 | if (!BLOCK_SUPERBLOCK (b)) | |
3492 | { | |
c5aa993b | 3493 | surrounding_static_block = b; /* For elmin of dups */ |
c906108c | 3494 | } |
c5aa993b | 3495 | |
c906108c | 3496 | /* Also catch fields of types defined in this places which match our |
c5aa993b | 3497 | text string. Only complete on types visible from current context. */ |
c906108c | 3498 | |
e88c90f2 | 3499 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c906108c | 3500 | { |
c906108c SS |
3501 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3502 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
3503 | { | |
3504 | struct type *t = SYMBOL_TYPE (sym); | |
3505 | enum type_code c = TYPE_CODE (t); | |
3506 | ||
3507 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
3508 | { | |
3509 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
3510 | { | |
3511 | if (TYPE_FIELD_NAME (t, j)) | |
3512 | { | |
3513 | completion_list_add_name (TYPE_FIELD_NAME (t, j), | |
c5aa993b | 3514 | sym_text, sym_text_len, text, word); |
c906108c SS |
3515 | } |
3516 | } | |
3517 | } | |
3518 | } | |
3519 | } | |
3520 | } | |
3521 | ||
3522 | /* Go through the symtabs and check the externs and statics for | |
3523 | symbols which match. */ | |
3524 | ||
3525 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
3526 | { |
3527 | QUIT; | |
3528 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
e88c90f2 | 3529 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 3530 | { |
c5aa993b JM |
3531 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3532 | } | |
3533 | } | |
c906108c SS |
3534 | |
3535 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
3536 | { |
3537 | QUIT; | |
3538 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
3539 | /* Don't do this block twice. */ | |
3540 | if (b == surrounding_static_block) | |
3541 | continue; | |
e88c90f2 | 3542 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 3543 | { |
c5aa993b JM |
3544 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3545 | } | |
3546 | } | |
c906108c SS |
3547 | |
3548 | return (return_val); | |
3549 | } | |
3550 | ||
c94fdfd0 EZ |
3551 | /* Like make_symbol_completion_list, but returns a list of symbols |
3552 | defined in a source file FILE. */ | |
3553 | ||
3554 | char ** | |
3555 | make_file_symbol_completion_list (char *text, char *word, char *srcfile) | |
3556 | { | |
3557 | register struct symbol *sym; | |
3558 | register struct symtab *s; | |
3559 | register struct block *b; | |
3560 | register int i; | |
3561 | /* The symbol we are completing on. Points in same buffer as text. */ | |
3562 | char *sym_text; | |
3563 | /* Length of sym_text. */ | |
3564 | int sym_text_len; | |
3565 | ||
3566 | /* Now look for the symbol we are supposed to complete on. | |
3567 | FIXME: This should be language-specific. */ | |
3568 | { | |
3569 | char *p; | |
3570 | char quote_found; | |
3571 | char *quote_pos = NULL; | |
3572 | ||
3573 | /* First see if this is a quoted string. */ | |
3574 | quote_found = '\0'; | |
3575 | for (p = text; *p != '\0'; ++p) | |
3576 | { | |
3577 | if (quote_found != '\0') | |
3578 | { | |
3579 | if (*p == quote_found) | |
3580 | /* Found close quote. */ | |
3581 | quote_found = '\0'; | |
3582 | else if (*p == '\\' && p[1] == quote_found) | |
3583 | /* A backslash followed by the quote character | |
3584 | doesn't end the string. */ | |
3585 | ++p; | |
3586 | } | |
3587 | else if (*p == '\'' || *p == '"') | |
3588 | { | |
3589 | quote_found = *p; | |
3590 | quote_pos = p; | |
3591 | } | |
3592 | } | |
3593 | if (quote_found == '\'') | |
3594 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3595 | sym_text = quote_pos + 1; | |
3596 | else if (quote_found == '"') | |
3597 | /* A double-quoted string is never a symbol, nor does it make sense | |
3598 | to complete it any other way. */ | |
3599 | { | |
3600 | return_val = (char **) xmalloc (sizeof (char *)); | |
3601 | return_val[0] = NULL; | |
3602 | return return_val; | |
3603 | } | |
3604 | else | |
3605 | { | |
3606 | /* It is not a quoted string. Break it based on the characters | |
3607 | which are in symbols. */ | |
3608 | while (p > text) | |
3609 | { | |
3610 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
3611 | --p; | |
3612 | else | |
3613 | break; | |
3614 | } | |
3615 | sym_text = p; | |
3616 | } | |
3617 | } | |
3618 | ||
3619 | sym_text_len = strlen (sym_text); | |
3620 | ||
3621 | return_val_size = 10; | |
3622 | return_val_index = 0; | |
3623 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
3624 | return_val[0] = NULL; | |
3625 | ||
3626 | /* Find the symtab for SRCFILE (this loads it if it was not yet read | |
3627 | in). */ | |
3628 | s = lookup_symtab (srcfile); | |
3629 | if (s == NULL) | |
3630 | { | |
3631 | /* Maybe they typed the file with leading directories, while the | |
3632 | symbol tables record only its basename. */ | |
31889e00 | 3633 | const char *tail = lbasename (srcfile); |
c94fdfd0 EZ |
3634 | |
3635 | if (tail > srcfile) | |
3636 | s = lookup_symtab (tail); | |
3637 | } | |
3638 | ||
3639 | /* If we have no symtab for that file, return an empty list. */ | |
3640 | if (s == NULL) | |
3641 | return (return_val); | |
3642 | ||
3643 | /* Go through this symtab and check the externs and statics for | |
3644 | symbols which match. */ | |
3645 | ||
3646 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
e88c90f2 | 3647 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c94fdfd0 | 3648 | { |
c94fdfd0 EZ |
3649 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3650 | } | |
3651 | ||
3652 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
e88c90f2 | 3653 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c94fdfd0 | 3654 | { |
c94fdfd0 EZ |
3655 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3656 | } | |
3657 | ||
3658 | return (return_val); | |
3659 | } | |
3660 | ||
3661 | /* A helper function for make_source_files_completion_list. It adds | |
3662 | another file name to a list of possible completions, growing the | |
3663 | list as necessary. */ | |
3664 | ||
3665 | static void | |
3666 | add_filename_to_list (const char *fname, char *text, char *word, | |
3667 | char ***list, int *list_used, int *list_alloced) | |
3668 | { | |
3669 | char *new; | |
3670 | size_t fnlen = strlen (fname); | |
3671 | ||
3672 | if (*list_used + 1 >= *list_alloced) | |
3673 | { | |
3674 | *list_alloced *= 2; | |
3675 | *list = (char **) xrealloc ((char *) *list, | |
3676 | *list_alloced * sizeof (char *)); | |
3677 | } | |
3678 | ||
3679 | if (word == text) | |
3680 | { | |
3681 | /* Return exactly fname. */ | |
3682 | new = xmalloc (fnlen + 5); | |
3683 | strcpy (new, fname); | |
3684 | } | |
3685 | else if (word > text) | |
3686 | { | |
3687 | /* Return some portion of fname. */ | |
3688 | new = xmalloc (fnlen + 5); | |
3689 | strcpy (new, fname + (word - text)); | |
3690 | } | |
3691 | else | |
3692 | { | |
3693 | /* Return some of TEXT plus fname. */ | |
3694 | new = xmalloc (fnlen + (text - word) + 5); | |
3695 | strncpy (new, word, text - word); | |
3696 | new[text - word] = '\0'; | |
3697 | strcat (new, fname); | |
3698 | } | |
3699 | (*list)[*list_used] = new; | |
3700 | (*list)[++*list_used] = NULL; | |
3701 | } | |
3702 | ||
3703 | static int | |
3704 | not_interesting_fname (const char *fname) | |
3705 | { | |
3706 | static const char *illegal_aliens[] = { | |
3707 | "_globals_", /* inserted by coff_symtab_read */ | |
3708 | NULL | |
3709 | }; | |
3710 | int i; | |
3711 | ||
3712 | for (i = 0; illegal_aliens[i]; i++) | |
3713 | { | |
3714 | if (strcmp (fname, illegal_aliens[i]) == 0) | |
3715 | return 1; | |
3716 | } | |
3717 | return 0; | |
3718 | } | |
3719 | ||
3720 | /* Return a NULL terminated array of all source files whose names | |
3721 | begin with matching TEXT. The file names are looked up in the | |
3722 | symbol tables of this program. If the answer is no matchess, then | |
3723 | the return value is an array which contains only a NULL pointer. */ | |
3724 | ||
3725 | char ** | |
3726 | make_source_files_completion_list (char *text, char *word) | |
3727 | { | |
3728 | register struct symtab *s; | |
3729 | register struct partial_symtab *ps; | |
3730 | register struct objfile *objfile; | |
3731 | int first = 1; | |
3732 | int list_alloced = 1; | |
3733 | int list_used = 0; | |
3734 | size_t text_len = strlen (text); | |
3735 | char **list = (char **) xmalloc (list_alloced * sizeof (char *)); | |
31889e00 | 3736 | const char *base_name; |
c94fdfd0 EZ |
3737 | |
3738 | list[0] = NULL; | |
3739 | ||
3740 | if (!have_full_symbols () && !have_partial_symbols ()) | |
3741 | return list; | |
3742 | ||
3743 | ALL_SYMTABS (objfile, s) | |
3744 | { | |
3745 | if (not_interesting_fname (s->filename)) | |
3746 | continue; | |
3747 | if (!filename_seen (s->filename, 1, &first) | |
3748 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3749 | && strncasecmp (s->filename, text, text_len) == 0 | |
3750 | #else | |
3751 | && strncmp (s->filename, text, text_len) == 0 | |
3752 | #endif | |
3753 | ) | |
3754 | { | |
3755 | /* This file matches for a completion; add it to the current | |
3756 | list of matches. */ | |
3757 | add_filename_to_list (s->filename, text, word, | |
3758 | &list, &list_used, &list_alloced); | |
3759 | } | |
3760 | else | |
3761 | { | |
3762 | /* NOTE: We allow the user to type a base name when the | |
3763 | debug info records leading directories, but not the other | |
3764 | way around. This is what subroutines of breakpoint | |
3765 | command do when they parse file names. */ | |
31889e00 | 3766 | base_name = lbasename (s->filename); |
c94fdfd0 EZ |
3767 | if (base_name != s->filename |
3768 | && !filename_seen (base_name, 1, &first) | |
3769 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3770 | && strncasecmp (base_name, text, text_len) == 0 | |
3771 | #else | |
3772 | && strncmp (base_name, text, text_len) == 0 | |
3773 | #endif | |
3774 | ) | |
3775 | add_filename_to_list (base_name, text, word, | |
3776 | &list, &list_used, &list_alloced); | |
3777 | } | |
3778 | } | |
3779 | ||
3780 | ALL_PSYMTABS (objfile, ps) | |
3781 | { | |
3782 | if (not_interesting_fname (ps->filename)) | |
3783 | continue; | |
3784 | if (!ps->readin) | |
3785 | { | |
3786 | if (!filename_seen (ps->filename, 1, &first) | |
3787 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3788 | && strncasecmp (ps->filename, text, text_len) == 0 | |
3789 | #else | |
3790 | && strncmp (ps->filename, text, text_len) == 0 | |
3791 | #endif | |
3792 | ) | |
3793 | { | |
3794 | /* This file matches for a completion; add it to the | |
3795 | current list of matches. */ | |
3796 | add_filename_to_list (ps->filename, text, word, | |
3797 | &list, &list_used, &list_alloced); | |
3798 | ||
3799 | } | |
3800 | else | |
3801 | { | |
31889e00 | 3802 | base_name = lbasename (ps->filename); |
c94fdfd0 EZ |
3803 | if (base_name != ps->filename |
3804 | && !filename_seen (base_name, 1, &first) | |
3805 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3806 | && strncasecmp (base_name, text, text_len) == 0 | |
3807 | #else | |
3808 | && strncmp (base_name, text, text_len) == 0 | |
3809 | #endif | |
3810 | ) | |
3811 | add_filename_to_list (base_name, text, word, | |
3812 | &list, &list_used, &list_alloced); | |
3813 | } | |
3814 | } | |
3815 | } | |
3816 | ||
3817 | return list; | |
3818 | } | |
3819 | ||
c906108c SS |
3820 | /* Determine if PC is in the prologue of a function. The prologue is the area |
3821 | between the first instruction of a function, and the first executable line. | |
3822 | Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue. | |
3823 | ||
3824 | If non-zero, func_start is where we think the prologue starts, possibly | |
3825 | by previous examination of symbol table information. | |
3826 | */ | |
3827 | ||
3828 | int | |
fba45db2 | 3829 | in_prologue (CORE_ADDR pc, CORE_ADDR func_start) |
c906108c SS |
3830 | { |
3831 | struct symtab_and_line sal; | |
3832 | CORE_ADDR func_addr, func_end; | |
3833 | ||
54cf9c03 EZ |
3834 | /* We have several sources of information we can consult to figure |
3835 | this out. | |
3836 | - Compilers usually emit line number info that marks the prologue | |
3837 | as its own "source line". So the ending address of that "line" | |
3838 | is the end of the prologue. If available, this is the most | |
3839 | reliable method. | |
3840 | - The minimal symbols and partial symbols, which can usually tell | |
3841 | us the starting and ending addresses of a function. | |
3842 | - If we know the function's start address, we can call the | |
3843 | architecture-defined SKIP_PROLOGUE function to analyze the | |
3844 | instruction stream and guess where the prologue ends. | |
3845 | - Our `func_start' argument; if non-zero, this is the caller's | |
3846 | best guess as to the function's entry point. At the time of | |
3847 | this writing, handle_inferior_event doesn't get this right, so | |
3848 | it should be our last resort. */ | |
3849 | ||
3850 | /* Consult the partial symbol table, to find which function | |
3851 | the PC is in. */ | |
3852 | if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end)) | |
3853 | { | |
3854 | CORE_ADDR prologue_end; | |
c906108c | 3855 | |
54cf9c03 EZ |
3856 | /* We don't even have minsym information, so fall back to using |
3857 | func_start, if given. */ | |
3858 | if (! func_start) | |
3859 | return 1; /* We *might* be in a prologue. */ | |
c906108c | 3860 | |
54cf9c03 | 3861 | prologue_end = SKIP_PROLOGUE (func_start); |
c906108c | 3862 | |
54cf9c03 EZ |
3863 | return func_start <= pc && pc < prologue_end; |
3864 | } | |
c906108c | 3865 | |
54cf9c03 EZ |
3866 | /* If we have line number information for the function, that's |
3867 | usually pretty reliable. */ | |
3868 | sal = find_pc_line (func_addr, 0); | |
c906108c | 3869 | |
54cf9c03 EZ |
3870 | /* Now sal describes the source line at the function's entry point, |
3871 | which (by convention) is the prologue. The end of that "line", | |
3872 | sal.end, is the end of the prologue. | |
3873 | ||
3874 | Note that, for functions whose source code is all on a single | |
3875 | line, the line number information doesn't always end up this way. | |
3876 | So we must verify that our purported end-of-prologue address is | |
3877 | *within* the function, not at its start or end. */ | |
3878 | if (sal.line == 0 | |
3879 | || sal.end <= func_addr | |
3880 | || func_end <= sal.end) | |
3881 | { | |
3882 | /* We don't have any good line number info, so use the minsym | |
3883 | information, together with the architecture-specific prologue | |
3884 | scanning code. */ | |
3885 | CORE_ADDR prologue_end = SKIP_PROLOGUE (func_addr); | |
c906108c | 3886 | |
54cf9c03 EZ |
3887 | return func_addr <= pc && pc < prologue_end; |
3888 | } | |
c906108c | 3889 | |
54cf9c03 EZ |
3890 | /* We have line number info, and it looks good. */ |
3891 | return func_addr <= pc && pc < sal.end; | |
c906108c SS |
3892 | } |
3893 | ||
3894 | ||
3895 | /* Begin overload resolution functions */ | |
228c6d41 DJ |
3896 | |
3897 | static char * | |
3898 | remove_params (const char *demangled_name) | |
3899 | { | |
3900 | const char *argp; | |
3901 | char *new_name; | |
3902 | int depth; | |
3903 | ||
3904 | if (demangled_name == NULL) | |
3905 | return NULL; | |
3906 | ||
3907 | /* First find the end of the arg list. */ | |
3908 | argp = strrchr (demangled_name, ')'); | |
3909 | if (argp == NULL) | |
3910 | return NULL; | |
3911 | ||
3912 | /* Back up to the beginning. */ | |
3913 | depth = 1; | |
3914 | ||
3915 | while (argp-- > demangled_name) | |
3916 | { | |
3917 | if (*argp == ')') | |
3918 | depth ++; | |
3919 | else if (*argp == '(') | |
3920 | { | |
3921 | depth --; | |
3922 | ||
3923 | if (depth == 0) | |
3924 | break; | |
3925 | } | |
3926 | } | |
3927 | if (depth != 0) | |
3928 | internal_error (__FILE__, __LINE__, | |
3929 | "bad demangled name %s\n", demangled_name); | |
3930 | while (argp[-1] == ' ' && argp > demangled_name) | |
3931 | argp --; | |
3932 | ||
3933 | new_name = xmalloc (argp - demangled_name + 1); | |
3934 | memcpy (new_name, demangled_name, argp - demangled_name); | |
3935 | new_name[argp - demangled_name] = '\0'; | |
3936 | return new_name; | |
3937 | } | |
3938 | ||
c906108c SS |
3939 | /* Helper routine for make_symbol_completion_list. */ |
3940 | ||
3941 | static int sym_return_val_size; | |
3942 | static int sym_return_val_index; | |
3943 | static struct symbol **sym_return_val; | |
3944 | ||
3945 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b JM |
3946 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
3947 | characters. If so, add it to the current completion list. */ | |
c906108c SS |
3948 | |
3949 | static void | |
fba45db2 | 3950 | overload_list_add_symbol (struct symbol *sym, char *oload_name) |
c906108c SS |
3951 | { |
3952 | int newsize; | |
3953 | int i; | |
228c6d41 DJ |
3954 | char *sym_name; |
3955 | ||
3956 | /* If there is no type information, we can't do anything, so skip */ | |
3957 | if (SYMBOL_TYPE (sym) == NULL) | |
3958 | return; | |
3959 | ||
3960 | /* skip any symbols that we've already considered. */ | |
3961 | for (i = 0; i < sym_return_val_index; ++i) | |
22abf04a | 3962 | if (!strcmp (DEPRECATED_SYMBOL_NAME (sym), DEPRECATED_SYMBOL_NAME (sym_return_val[i]))) |
228c6d41 | 3963 | return; |
c906108c SS |
3964 | |
3965 | /* Get the demangled name without parameters */ | |
228c6d41 | 3966 | sym_name = remove_params (SYMBOL_DEMANGLED_NAME (sym)); |
c906108c | 3967 | if (!sym_name) |
228c6d41 | 3968 | return; |
c906108c SS |
3969 | |
3970 | /* skip symbols that cannot match */ | |
3971 | if (strcmp (sym_name, oload_name) != 0) | |
917317f4 | 3972 | { |
b8c9b27d | 3973 | xfree (sym_name); |
917317f4 JM |
3974 | return; |
3975 | } | |
c906108c | 3976 | |
228c6d41 | 3977 | xfree (sym_name); |
c906108c SS |
3978 | |
3979 | /* We have a match for an overload instance, so add SYM to the current list | |
3980 | * of overload instances */ | |
3981 | if (sym_return_val_index + 3 > sym_return_val_size) | |
3982 | { | |
3983 | newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *); | |
3984 | sym_return_val = (struct symbol **) xrealloc ((char *) sym_return_val, newsize); | |
3985 | } | |
3986 | sym_return_val[sym_return_val_index++] = sym; | |
3987 | sym_return_val[sym_return_val_index] = NULL; | |
c906108c SS |
3988 | } |
3989 | ||
3990 | /* Return a null-terminated list of pointers to function symbols that | |
3991 | * match name of the supplied symbol FSYM. | |
3992 | * This is used in finding all overloaded instances of a function name. | |
3993 | * This has been modified from make_symbol_completion_list. */ | |
3994 | ||
3995 | ||
3996 | struct symbol ** | |
fba45db2 | 3997 | make_symbol_overload_list (struct symbol *fsym) |
c906108c SS |
3998 | { |
3999 | register struct symbol *sym; | |
4000 | register struct symtab *s; | |
4001 | register struct partial_symtab *ps; | |
c906108c SS |
4002 | register struct objfile *objfile; |
4003 | register struct block *b, *surrounding_static_block = 0; | |
d4f3574e | 4004 | register int i; |
c906108c SS |
4005 | /* The name we are completing on. */ |
4006 | char *oload_name = NULL; | |
4007 | /* Length of name. */ | |
4008 | int oload_name_len = 0; | |
4009 | ||
228c6d41 | 4010 | /* Look for the symbol we are supposed to complete on. */ |
c906108c | 4011 | |
228c6d41 | 4012 | oload_name = remove_params (SYMBOL_DEMANGLED_NAME (fsym)); |
c906108c SS |
4013 | if (!oload_name) |
4014 | { | |
228c6d41 DJ |
4015 | sym_return_val_size = 1; |
4016 | sym_return_val = (struct symbol **) xmalloc (2 * sizeof (struct symbol *)); | |
4017 | sym_return_val[0] = fsym; | |
4018 | sym_return_val[1] = NULL; | |
4019 | ||
4020 | return sym_return_val; | |
c906108c SS |
4021 | } |
4022 | oload_name_len = strlen (oload_name); | |
4023 | ||
4024 | sym_return_val_size = 100; | |
4025 | sym_return_val_index = 0; | |
4026 | sym_return_val = (struct symbol **) xmalloc ((sym_return_val_size + 1) * sizeof (struct symbol *)); | |
4027 | sym_return_val[0] = NULL; | |
4028 | ||
49fa1dc2 DC |
4029 | /* Read in all partial symtabs containing a partial symbol named |
4030 | OLOAD_NAME. */ | |
c906108c SS |
4031 | |
4032 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b | 4033 | { |
d4f3574e SS |
4034 | struct partial_symbol **psym; |
4035 | ||
c5aa993b JM |
4036 | /* If the psymtab's been read in we'll get it when we search |
4037 | through the blockvector. */ | |
4038 | if (ps->readin) | |
4039 | continue; | |
4040 | ||
3d4e8fd2 DC |
4041 | if ((lookup_partial_symbol (ps, oload_name, NULL, 1, VAR_NAMESPACE) |
4042 | != NULL) | |
4043 | || (lookup_partial_symbol (ps, oload_name, NULL, 0, VAR_NAMESPACE) | |
4044 | != NULL)) | |
49fa1dc2 | 4045 | PSYMTAB_TO_SYMTAB (ps); |
c5aa993b | 4046 | } |
c906108c | 4047 | |
c906108c SS |
4048 | /* Search upwards from currently selected frame (so that we can |
4049 | complete on local vars. */ | |
4050 | ||
ae767bfb | 4051 | for (b = get_selected_block (0); b != NULL; b = BLOCK_SUPERBLOCK (b)) |
c906108c SS |
4052 | { |
4053 | if (!BLOCK_SUPERBLOCK (b)) | |
4054 | { | |
c5aa993b | 4055 | surrounding_static_block = b; /* For elimination of dups */ |
c906108c | 4056 | } |
c5aa993b | 4057 | |
c906108c | 4058 | /* Also catch fields of types defined in this places which match our |
c5aa993b | 4059 | text string. Only complete on types visible from current context. */ |
c906108c | 4060 | |
e88c90f2 | 4061 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c906108c | 4062 | { |
c906108c SS |
4063 | overload_list_add_symbol (sym, oload_name); |
4064 | } | |
4065 | } | |
4066 | ||
4067 | /* Go through the symtabs and check the externs and statics for | |
4068 | symbols which match. */ | |
4069 | ||
4070 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
4071 | { |
4072 | QUIT; | |
4073 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
e88c90f2 | 4074 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 4075 | { |
c5aa993b JM |
4076 | overload_list_add_symbol (sym, oload_name); |
4077 | } | |
4078 | } | |
c906108c SS |
4079 | |
4080 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
4081 | { |
4082 | QUIT; | |
4083 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
4084 | /* Don't do this block twice. */ | |
4085 | if (b == surrounding_static_block) | |
4086 | continue; | |
e88c90f2 | 4087 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 4088 | { |
c5aa993b JM |
4089 | overload_list_add_symbol (sym, oload_name); |
4090 | } | |
4091 | } | |
c906108c | 4092 | |
b8c9b27d | 4093 | xfree (oload_name); |
c906108c SS |
4094 | |
4095 | return (sym_return_val); | |
4096 | } | |
4097 | ||
4098 | /* End of overload resolution functions */ | |
c906108c | 4099 | \f |
50641945 FN |
4100 | struct symtabs_and_lines |
4101 | decode_line_spec (char *string, int funfirstline) | |
4102 | { | |
4103 | struct symtabs_and_lines sals; | |
0378c332 FN |
4104 | struct symtab_and_line cursal; |
4105 | ||
50641945 FN |
4106 | if (string == 0) |
4107 | error ("Empty line specification."); | |
0378c332 FN |
4108 | |
4109 | /* We use whatever is set as the current source line. We do not try | |
4110 | and get a default or it will recursively call us! */ | |
4111 | cursal = get_current_source_symtab_and_line (); | |
4112 | ||
50641945 | 4113 | sals = decode_line_1 (&string, funfirstline, |
0378c332 | 4114 | cursal.symtab, cursal.line, |
50641945 | 4115 | (char ***) NULL); |
0378c332 | 4116 | |
50641945 FN |
4117 | if (*string) |
4118 | error ("Junk at end of line specification: %s", string); | |
4119 | return sals; | |
4120 | } | |
c5aa993b | 4121 | |
51cc5b07 AC |
4122 | /* Track MAIN */ |
4123 | static char *name_of_main; | |
4124 | ||
4125 | void | |
4126 | set_main_name (const char *name) | |
4127 | { | |
4128 | if (name_of_main != NULL) | |
4129 | { | |
4130 | xfree (name_of_main); | |
4131 | name_of_main = NULL; | |
4132 | } | |
4133 | if (name != NULL) | |
4134 | { | |
4135 | name_of_main = xstrdup (name); | |
4136 | } | |
4137 | } | |
4138 | ||
4139 | char * | |
4140 | main_name (void) | |
4141 | { | |
4142 | if (name_of_main != NULL) | |
4143 | return name_of_main; | |
4144 | else | |
4145 | return "main"; | |
4146 | } | |
4147 | ||
4148 | ||
c906108c | 4149 | void |
fba45db2 | 4150 | _initialize_symtab (void) |
c906108c SS |
4151 | { |
4152 | add_info ("variables", variables_info, | |
c5aa993b | 4153 | "All global and static variable names, or those matching REGEXP."); |
c906108c | 4154 | if (dbx_commands) |
c5aa993b JM |
4155 | add_com ("whereis", class_info, variables_info, |
4156 | "All global and static variable names, or those matching REGEXP."); | |
c906108c SS |
4157 | |
4158 | add_info ("functions", functions_info, | |
4159 | "All function names, or those matching REGEXP."); | |
4160 | ||
357e46e7 | 4161 | |
c906108c SS |
4162 | /* FIXME: This command has at least the following problems: |
4163 | 1. It prints builtin types (in a very strange and confusing fashion). | |
4164 | 2. It doesn't print right, e.g. with | |
c5aa993b JM |
4165 | typedef struct foo *FOO |
4166 | type_print prints "FOO" when we want to make it (in this situation) | |
4167 | print "struct foo *". | |
c906108c SS |
4168 | I also think "ptype" or "whatis" is more likely to be useful (but if |
4169 | there is much disagreement "info types" can be fixed). */ | |
4170 | add_info ("types", types_info, | |
4171 | "All type names, or those matching REGEXP."); | |
4172 | ||
c906108c SS |
4173 | add_info ("sources", sources_info, |
4174 | "Source files in the program."); | |
4175 | ||
4176 | add_com ("rbreak", class_breakpoint, rbreak_command, | |
c5aa993b | 4177 | "Set a breakpoint for all functions matching REGEXP."); |
c906108c SS |
4178 | |
4179 | if (xdb_commands) | |
4180 | { | |
4181 | add_com ("lf", class_info, sources_info, "Source files in the program"); | |
4182 | add_com ("lg", class_info, variables_info, | |
c5aa993b | 4183 | "All global and static variable names, or those matching REGEXP."); |
c906108c SS |
4184 | } |
4185 | ||
4186 | /* Initialize the one built-in type that isn't language dependent... */ | |
4187 | builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0, | |
4188 | "<unknown type>", (struct objfile *) NULL); | |
4189 | } |