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 */ |
1bae87b9 | 43 | #include "objc-lang.h" |
c906108c | 44 | |
2de7ced7 DJ |
45 | #include "hashtab.h" |
46 | ||
04ea0df1 | 47 | #include "gdb_obstack.h" |
fe898f56 | 48 | #include "block.h" |
c906108c SS |
49 | |
50 | #include <sys/types.h> | |
51 | #include <fcntl.h> | |
52 | #include "gdb_string.h" | |
53 | #include "gdb_stat.h" | |
54 | #include <ctype.h> | |
015a42b4 | 55 | #include "cp-abi.h" |
c906108c | 56 | |
c906108c SS |
57 | /* Prototypes for local functions */ |
58 | ||
a14ed312 | 59 | static void completion_list_add_name (char *, char *, int, char *, char *); |
c906108c | 60 | |
a14ed312 | 61 | static void rbreak_command (char *, int); |
c906108c | 62 | |
a14ed312 | 63 | static void types_info (char *, int); |
c906108c | 64 | |
a14ed312 | 65 | static void functions_info (char *, int); |
c906108c | 66 | |
a14ed312 | 67 | static void variables_info (char *, int); |
c906108c | 68 | |
a14ed312 | 69 | static void sources_info (char *, int); |
c906108c | 70 | |
a14ed312 | 71 | static void output_source_filename (char *, int *); |
c906108c | 72 | |
a14ed312 | 73 | static int find_line_common (struct linetable *, int, int *); |
c906108c | 74 | |
50641945 FN |
75 | /* This one is used by linespec.c */ |
76 | ||
77 | char *operator_chars (char *p, char **end); | |
78 | ||
b37bcaa8 | 79 | static struct partial_symbol *lookup_partial_symbol (struct partial_symtab *, |
3d4e8fd2 | 80 | const char *, |
b37bcaa8 | 81 | const char *, int, |
176620f1 | 82 | domain_enum); |
c906108c | 83 | |
3121eff0 DJ |
84 | static struct symbol *lookup_symbol_aux (const char *name, |
85 | const char *mangled_name, | |
86 | const struct block *block, | |
176620f1 | 87 | const domain_enum domain, |
3121eff0 DJ |
88 | int *is_a_field_of_this, |
89 | struct symtab **symtab); | |
fba7f19c | 90 | |
e4051eeb DC |
91 | static |
92 | struct symbol *lookup_symbol_aux_local (const char *name, | |
93 | const char *mangled_name, | |
94 | const struct block *block, | |
176620f1 | 95 | const domain_enum domain, |
e4051eeb DC |
96 | struct symtab **symtab, |
97 | const struct block **static_block); | |
8155455b | 98 | |
f61e8913 DC |
99 | static |
100 | struct symbol *lookup_symbol_aux_block (const char *name, | |
101 | const char *mangled_name, | |
102 | const struct block *block, | |
176620f1 | 103 | const domain_enum domain, |
f61e8913 DC |
104 | struct symtab **symtab); |
105 | ||
8155455b DC |
106 | static |
107 | struct symbol *lookup_symbol_aux_symtabs (int block_index, | |
108 | const char *name, | |
109 | const char *mangled_name, | |
176620f1 | 110 | const domain_enum domain, |
8155455b DC |
111 | struct symtab **symtab); |
112 | ||
113 | static | |
114 | struct symbol *lookup_symbol_aux_psymtabs (int block_index, | |
115 | const char *name, | |
116 | const char *mangled_name, | |
176620f1 | 117 | const domain_enum domain, |
8155455b | 118 | struct symtab **symtab); |
fba7f19c | 119 | |
ae2f03ac | 120 | #if 0 |
406bc4de DC |
121 | static |
122 | struct symbol *lookup_symbol_aux_minsyms (const char *name, | |
123 | const char *mangled_name, | |
176620f1 | 124 | const domain_enum domain, |
406bc4de | 125 | int *is_a_field_of_this, |
e45febe2 | 126 | struct symtab **symtab); |
ae2f03ac | 127 | #endif |
406bc4de | 128 | |
a14ed312 | 129 | static struct symbol *find_active_alias (struct symbol *sym, CORE_ADDR addr); |
c906108c SS |
130 | |
131 | /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */ | |
132 | /* Signals the presence of objects compiled by HP compilers */ | |
133 | int hp_som_som_object_present = 0; | |
134 | ||
a14ed312 | 135 | static void fixup_section (struct general_symbol_info *, struct objfile *); |
c906108c | 136 | |
a14ed312 | 137 | static int file_matches (char *, char **, int); |
c906108c | 138 | |
176620f1 | 139 | static void print_symbol_info (domain_enum, |
a14ed312 | 140 | struct symtab *, struct symbol *, int, char *); |
c906108c | 141 | |
a14ed312 | 142 | static void print_msymbol_info (struct minimal_symbol *); |
c906108c | 143 | |
176620f1 | 144 | static void symtab_symbol_info (char *, domain_enum, int); |
c906108c | 145 | |
a14ed312 | 146 | static void overload_list_add_symbol (struct symbol *sym, char *oload_name); |
392a587b | 147 | |
a14ed312 | 148 | void _initialize_symtab (void); |
c906108c SS |
149 | |
150 | /* */ | |
151 | ||
152 | /* The single non-language-specific builtin type */ | |
153 | struct type *builtin_type_error; | |
154 | ||
155 | /* Block in which the most recently searched-for symbol was found. | |
156 | Might be better to make this a parameter to lookup_symbol and | |
157 | value_of_this. */ | |
158 | ||
159 | const struct block *block_found; | |
160 | ||
c906108c SS |
161 | /* Check for a symtab of a specific name; first in symtabs, then in |
162 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
163 | in the symtab filename will also work. */ | |
164 | ||
1b15f1fa TT |
165 | struct symtab * |
166 | lookup_symtab (const char *name) | |
c906108c SS |
167 | { |
168 | register struct symtab *s; | |
169 | register struct partial_symtab *ps; | |
c906108c | 170 | register struct objfile *objfile; |
58d370e0 | 171 | char *real_path = NULL; |
f079a2e5 | 172 | char *full_path = NULL; |
58d370e0 TT |
173 | |
174 | /* Here we are interested in canonicalizing an absolute path, not | |
175 | absolutizing a relative path. */ | |
176 | if (IS_ABSOLUTE_PATH (name)) | |
f079a2e5 JB |
177 | { |
178 | full_path = xfullpath (name); | |
179 | make_cleanup (xfree, full_path); | |
180 | real_path = gdb_realpath (name); | |
181 | make_cleanup (xfree, real_path); | |
182 | } | |
c906108c | 183 | |
c5aa993b | 184 | got_symtab: |
c906108c SS |
185 | |
186 | /* First, search for an exact match */ | |
187 | ||
188 | ALL_SYMTABS (objfile, s) | |
58d370e0 | 189 | { |
a7fdf62f | 190 | if (FILENAME_CMP (name, s->filename) == 0) |
58d370e0 | 191 | { |
58d370e0 TT |
192 | return s; |
193 | } | |
f079a2e5 | 194 | |
58d370e0 TT |
195 | /* If the user gave us an absolute path, try to find the file in |
196 | this symtab and use its absolute path. */ | |
f079a2e5 JB |
197 | |
198 | if (full_path != NULL) | |
199 | { | |
200 | const char *fp = symtab_to_filename (s); | |
201 | if (FILENAME_CMP (full_path, fp) == 0) | |
202 | { | |
203 | return s; | |
204 | } | |
205 | } | |
206 | ||
58d370e0 TT |
207 | if (real_path != NULL) |
208 | { | |
25f1b008 | 209 | char *rp = gdb_realpath (symtab_to_filename (s)); |
f079a2e5 | 210 | make_cleanup (xfree, rp); |
58d370e0 TT |
211 | if (FILENAME_CMP (real_path, rp) == 0) |
212 | { | |
58d370e0 TT |
213 | return s; |
214 | } | |
215 | } | |
216 | } | |
217 | ||
c906108c SS |
218 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ |
219 | ||
caadab2c | 220 | if (lbasename (name) == name) |
c906108c | 221 | ALL_SYMTABS (objfile, s) |
c5aa993b | 222 | { |
31889e00 | 223 | if (FILENAME_CMP (lbasename (s->filename), name) == 0) |
c5aa993b JM |
224 | return s; |
225 | } | |
c906108c SS |
226 | |
227 | /* Same search rules as above apply here, but now we look thru the | |
228 | psymtabs. */ | |
229 | ||
230 | ps = lookup_partial_symtab (name); | |
231 | if (!ps) | |
232 | return (NULL); | |
233 | ||
c5aa993b | 234 | if (ps->readin) |
c906108c | 235 | error ("Internal: readin %s pst for `%s' found when no symtab found.", |
c5aa993b | 236 | ps->filename, name); |
c906108c SS |
237 | |
238 | s = PSYMTAB_TO_SYMTAB (ps); | |
239 | ||
240 | if (s) | |
241 | return s; | |
242 | ||
243 | /* At this point, we have located the psymtab for this file, but | |
244 | the conversion to a symtab has failed. This usually happens | |
245 | when we are looking up an include file. In this case, | |
246 | PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has | |
247 | been created. So, we need to run through the symtabs again in | |
248 | order to find the file. | |
249 | XXX - This is a crock, and should be fixed inside of the the | |
250 | symbol parsing routines. */ | |
251 | goto got_symtab; | |
252 | } | |
253 | ||
c906108c SS |
254 | /* Lookup the partial symbol table of a source file named NAME. |
255 | *If* there is no '/' in the name, a match after a '/' | |
256 | in the psymtab filename will also work. */ | |
257 | ||
258 | struct partial_symtab * | |
1f8cc6db | 259 | lookup_partial_symtab (const char *name) |
c906108c SS |
260 | { |
261 | register struct partial_symtab *pst; | |
262 | register struct objfile *objfile; | |
f079a2e5 | 263 | char *full_path = NULL; |
58d370e0 TT |
264 | char *real_path = NULL; |
265 | ||
266 | /* Here we are interested in canonicalizing an absolute path, not | |
267 | absolutizing a relative path. */ | |
268 | if (IS_ABSOLUTE_PATH (name)) | |
f079a2e5 JB |
269 | { |
270 | full_path = xfullpath (name); | |
271 | make_cleanup (xfree, full_path); | |
272 | real_path = gdb_realpath (name); | |
273 | make_cleanup (xfree, real_path); | |
274 | } | |
c5aa993b | 275 | |
c906108c | 276 | ALL_PSYMTABS (objfile, pst) |
c5aa993b | 277 | { |
a7fdf62f | 278 | if (FILENAME_CMP (name, pst->filename) == 0) |
c5aa993b JM |
279 | { |
280 | return (pst); | |
281 | } | |
f079a2e5 | 282 | |
58d370e0 TT |
283 | /* If the user gave us an absolute path, try to find the file in |
284 | this symtab and use its absolute path. */ | |
f079a2e5 | 285 | if (full_path != NULL) |
58d370e0 TT |
286 | { |
287 | if (pst->fullname == NULL) | |
288 | source_full_path_of (pst->filename, &pst->fullname); | |
289 | if (pst->fullname != NULL | |
f079a2e5 | 290 | && FILENAME_CMP (full_path, pst->fullname) == 0) |
58d370e0 | 291 | { |
58d370e0 TT |
292 | return pst; |
293 | } | |
294 | } | |
c906108c | 295 | |
f079a2e5 JB |
296 | if (real_path != NULL) |
297 | { | |
298 | char *rp = NULL; | |
299 | if (pst->fullname == NULL) | |
300 | source_full_path_of (pst->filename, &pst->fullname); | |
301 | if (pst->fullname != NULL) | |
302 | { | |
303 | rp = gdb_realpath (pst->fullname); | |
304 | make_cleanup (xfree, rp); | |
305 | } | |
306 | if (rp != NULL && FILENAME_CMP (real_path, rp) == 0) | |
307 | { | |
308 | return pst; | |
309 | } | |
310 | } | |
311 | } | |
58d370e0 | 312 | |
c906108c SS |
313 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ |
314 | ||
caadab2c | 315 | if (lbasename (name) == name) |
c906108c | 316 | ALL_PSYMTABS (objfile, pst) |
c5aa993b | 317 | { |
31889e00 | 318 | if (FILENAME_CMP (lbasename (pst->filename), name) == 0) |
c5aa993b JM |
319 | return (pst); |
320 | } | |
c906108c SS |
321 | |
322 | return (NULL); | |
323 | } | |
324 | \f | |
325 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
326 | full method name, which consist of the class name (from T), the unadorned | |
327 | method name from METHOD_ID, and the signature for the specific overload, | |
328 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ | |
329 | ||
330 | char * | |
fba45db2 | 331 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
332 | { |
333 | int mangled_name_len; | |
334 | char *mangled_name; | |
335 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
336 | struct fn_field *method = &f[signature_id]; | |
337 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); | |
338 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); | |
339 | char *newname = type_name_no_tag (type); | |
340 | ||
341 | /* Does the form of physname indicate that it is the full mangled name | |
342 | of a constructor (not just the args)? */ | |
343 | int is_full_physname_constructor; | |
344 | ||
345 | int is_constructor; | |
015a42b4 | 346 | int is_destructor = is_destructor_name (physname); |
c906108c SS |
347 | /* Need a new type prefix. */ |
348 | char *const_prefix = method->is_const ? "C" : ""; | |
349 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
350 | char buf[20]; | |
351 | int len = (newname == NULL ? 0 : strlen (newname)); | |
352 | ||
43630227 PS |
353 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
354 | or an operator name. */ | |
355 | if ((physname[0] == '_' && physname[1] == 'Z') | |
356 | || is_operator_name (field_name)) | |
235d1e03 EZ |
357 | return xstrdup (physname); |
358 | ||
015a42b4 | 359 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c SS |
360 | |
361 | is_constructor = | |
c5aa993b | 362 | is_full_physname_constructor || (newname && STREQ (field_name, newname)); |
c906108c SS |
363 | |
364 | if (!is_destructor) | |
c5aa993b | 365 | is_destructor = (strncmp (physname, "__dt", 4) == 0); |
c906108c SS |
366 | |
367 | if (is_destructor || is_full_physname_constructor) | |
368 | { | |
c5aa993b JM |
369 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
370 | strcpy (mangled_name, physname); | |
c906108c SS |
371 | return mangled_name; |
372 | } | |
373 | ||
374 | if (len == 0) | |
375 | { | |
376 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
377 | } | |
378 | else if (physname[0] == 't' || physname[0] == 'Q') | |
379 | { | |
380 | /* The physname for template and qualified methods already includes | |
c5aa993b | 381 | the class name. */ |
c906108c SS |
382 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
383 | newname = NULL; | |
384 | len = 0; | |
385 | } | |
386 | else | |
387 | { | |
388 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
389 | } | |
390 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 391 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 392 | |
c906108c | 393 | { |
c5aa993b | 394 | mangled_name = (char *) xmalloc (mangled_name_len); |
c906108c SS |
395 | if (is_constructor) |
396 | mangled_name[0] = '\0'; | |
397 | else | |
398 | strcpy (mangled_name, field_name); | |
399 | } | |
400 | strcat (mangled_name, buf); | |
401 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
402 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c5aa993b | 403 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
404 | if (newname != NULL) |
405 | strcat (mangled_name, newname); | |
406 | ||
407 | strcat (mangled_name, physname); | |
408 | return (mangled_name); | |
409 | } | |
12af6855 JB |
410 | |
411 | \f | |
89aad1f9 EZ |
412 | /* Initialize the language dependent portion of a symbol |
413 | depending upon the language for the symbol. */ | |
414 | void | |
415 | symbol_init_language_specific (struct general_symbol_info *gsymbol, | |
416 | enum language language) | |
417 | { | |
418 | gsymbol->language = language; | |
419 | if (gsymbol->language == language_cplus | |
5784d15e AF |
420 | || gsymbol->language == language_java |
421 | || gsymbol->language == language_objc) | |
89aad1f9 EZ |
422 | { |
423 | gsymbol->language_specific.cplus_specific.demangled_name = NULL; | |
424 | } | |
89aad1f9 EZ |
425 | else |
426 | { | |
427 | memset (&gsymbol->language_specific, 0, | |
428 | sizeof (gsymbol->language_specific)); | |
429 | } | |
430 | } | |
431 | ||
2de7ced7 DJ |
432 | /* Functions to initialize a symbol's mangled name. */ |
433 | ||
434 | /* Create the hash table used for demangled names. Each hash entry is | |
435 | a pair of strings; one for the mangled name and one for the demangled | |
436 | name. The entry is hashed via just the mangled name. */ | |
437 | ||
438 | static void | |
439 | create_demangled_names_hash (struct objfile *objfile) | |
440 | { | |
441 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
442 | The hash table code will round this up to the next prime number. | |
443 | Choosing a much larger table size wastes memory, and saves only about | |
444 | 1% in symbol reading. */ | |
445 | ||
446 | objfile->demangled_names_hash = htab_create_alloc_ex | |
447 | (256, htab_hash_string, (int (*) (const void *, const void *)) streq, | |
448 | NULL, objfile->md, xmcalloc, xmfree); | |
449 | } | |
12af6855 | 450 | |
2de7ced7 | 451 | /* Try to determine the demangled name for a symbol, based on the |
12af6855 JB |
452 | language of that symbol. If the language is set to language_auto, |
453 | it will attempt to find any demangling algorithm that works and | |
2de7ced7 DJ |
454 | then set the language appropriately. The returned name is allocated |
455 | by the demangler and should be xfree'd. */ | |
12af6855 | 456 | |
2de7ced7 DJ |
457 | static char * |
458 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, | |
459 | const char *mangled) | |
12af6855 | 460 | { |
12af6855 JB |
461 | char *demangled = NULL; |
462 | ||
463 | if (gsymbol->language == language_unknown) | |
464 | gsymbol->language = language_auto; | |
1bae87b9 AF |
465 | |
466 | if (gsymbol->language == language_objc | |
467 | || gsymbol->language == language_auto) | |
468 | { | |
469 | demangled = | |
470 | objc_demangle (mangled, 0); | |
471 | if (demangled != NULL) | |
472 | { | |
473 | gsymbol->language = language_objc; | |
474 | return demangled; | |
475 | } | |
476 | } | |
12af6855 JB |
477 | if (gsymbol->language == language_cplus |
478 | || gsymbol->language == language_auto) | |
479 | { | |
480 | demangled = | |
2de7ced7 | 481 | cplus_demangle (mangled, DMGL_PARAMS | DMGL_ANSI); |
12af6855 | 482 | if (demangled != NULL) |
2de7ced7 DJ |
483 | { |
484 | gsymbol->language = language_cplus; | |
485 | return demangled; | |
486 | } | |
12af6855 JB |
487 | } |
488 | if (gsymbol->language == language_java) | |
489 | { | |
490 | demangled = | |
2de7ced7 | 491 | cplus_demangle (mangled, |
12af6855 JB |
492 | DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); |
493 | if (demangled != NULL) | |
2de7ced7 DJ |
494 | { |
495 | gsymbol->language = language_java; | |
496 | return demangled; | |
497 | } | |
498 | } | |
499 | return NULL; | |
500 | } | |
501 | ||
980cae7a DC |
502 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
503 | on LINKAGE_NAME and LEN. The hash table corresponding to OBJFILE | |
504 | is used, and the memory comes from that objfile's symbol_obstack. | |
505 | LINKAGE_NAME is copied, so the pointer can be discarded after | |
506 | calling this function. */ | |
2de7ced7 | 507 | |
d2a52b27 DC |
508 | /* We have to be careful when dealing with Java names: when we run |
509 | into a Java minimal symbol, we don't know it's a Java symbol, so it | |
510 | gets demangled as a C++ name. This is unfortunate, but there's not | |
511 | much we can do about it: but when demangling partial symbols and | |
512 | regular symbols, we'd better not reuse the wrong demangled name. | |
513 | (See PR gdb/1039.) We solve this by putting a distinctive prefix | |
514 | on Java names when storing them in the hash table. */ | |
515 | ||
516 | /* FIXME: carlton/2003-03-13: This is an unfortunate situation. I | |
517 | don't mind the Java prefix so much: different languages have | |
518 | different demangling requirements, so it's only natural that we | |
519 | need to keep language data around in our demangling cache. But | |
520 | it's not good that the minimal symbol has the wrong demangled name. | |
521 | Unfortunately, I can't think of any easy solution to that | |
522 | problem. */ | |
523 | ||
524 | #define JAVA_PREFIX "##JAVA$$" | |
525 | #define JAVA_PREFIX_LEN 8 | |
526 | ||
2de7ced7 DJ |
527 | void |
528 | symbol_set_names (struct general_symbol_info *gsymbol, | |
980cae7a | 529 | const char *linkage_name, int len, struct objfile *objfile) |
2de7ced7 DJ |
530 | { |
531 | char **slot; | |
980cae7a DC |
532 | /* A 0-terminated copy of the linkage name. */ |
533 | const char *linkage_name_copy; | |
d2a52b27 DC |
534 | /* A copy of the linkage name that might have a special Java prefix |
535 | added to it, for use when looking names up in the hash table. */ | |
536 | const char *lookup_name; | |
537 | /* The length of lookup_name. */ | |
538 | int lookup_len; | |
2de7ced7 DJ |
539 | |
540 | if (objfile->demangled_names_hash == NULL) | |
541 | create_demangled_names_hash (objfile); | |
542 | ||
980cae7a DC |
543 | /* The stabs reader generally provides names that are not |
544 | NUL-terminated; most of the other readers don't do this, so we | |
d2a52b27 DC |
545 | can just use the given copy, unless we're in the Java case. */ |
546 | if (gsymbol->language == language_java) | |
547 | { | |
548 | char *alloc_name; | |
549 | lookup_len = len + JAVA_PREFIX_LEN; | |
550 | ||
551 | alloc_name = alloca (lookup_len + 1); | |
552 | memcpy (alloc_name, JAVA_PREFIX, JAVA_PREFIX_LEN); | |
553 | memcpy (alloc_name + JAVA_PREFIX_LEN, linkage_name, len); | |
554 | alloc_name[lookup_len] = '\0'; | |
555 | ||
556 | lookup_name = alloc_name; | |
557 | linkage_name_copy = alloc_name + JAVA_PREFIX_LEN; | |
558 | } | |
559 | else if (linkage_name[len] != '\0') | |
2de7ced7 | 560 | { |
980cae7a | 561 | char *alloc_name; |
d2a52b27 | 562 | lookup_len = len; |
980cae7a | 563 | |
d2a52b27 | 564 | alloc_name = alloca (lookup_len + 1); |
980cae7a | 565 | memcpy (alloc_name, linkage_name, len); |
d2a52b27 | 566 | alloc_name[lookup_len] = '\0'; |
980cae7a | 567 | |
d2a52b27 | 568 | lookup_name = alloc_name; |
980cae7a | 569 | linkage_name_copy = alloc_name; |
2de7ced7 DJ |
570 | } |
571 | else | |
980cae7a | 572 | { |
d2a52b27 DC |
573 | lookup_len = len; |
574 | lookup_name = linkage_name; | |
980cae7a DC |
575 | linkage_name_copy = linkage_name; |
576 | } | |
2de7ced7 | 577 | |
980cae7a | 578 | slot = (char **) htab_find_slot (objfile->demangled_names_hash, |
d2a52b27 | 579 | lookup_name, INSERT); |
2de7ced7 DJ |
580 | |
581 | /* If this name is not in the hash table, add it. */ | |
582 | if (*slot == NULL) | |
583 | { | |
980cae7a DC |
584 | char *demangled_name = symbol_find_demangled_name (gsymbol, |
585 | linkage_name_copy); | |
2de7ced7 DJ |
586 | int demangled_len = demangled_name ? strlen (demangled_name) : 0; |
587 | ||
588 | /* If there is a demangled name, place it right after the mangled name. | |
589 | Otherwise, just place a second zero byte after the end of the mangled | |
590 | name. */ | |
591 | *slot = obstack_alloc (&objfile->symbol_obstack, | |
d2a52b27 DC |
592 | lookup_len + demangled_len + 2); |
593 | memcpy (*slot, lookup_name, lookup_len + 1); | |
980cae7a | 594 | if (demangled_name != NULL) |
2de7ced7 | 595 | { |
d2a52b27 | 596 | memcpy (*slot + lookup_len + 1, demangled_name, demangled_len + 1); |
2de7ced7 DJ |
597 | xfree (demangled_name); |
598 | } | |
599 | else | |
d2a52b27 | 600 | (*slot)[lookup_len + 1] = '\0'; |
2de7ced7 DJ |
601 | } |
602 | ||
d2a52b27 DC |
603 | gsymbol->name = *slot + lookup_len - len; |
604 | if ((*slot)[lookup_len + 1] != '\0') | |
2de7ced7 | 605 | gsymbol->language_specific.cplus_specific.demangled_name |
d2a52b27 | 606 | = &(*slot)[lookup_len + 1]; |
2de7ced7 DJ |
607 | else |
608 | gsymbol->language_specific.cplus_specific.demangled_name = NULL; | |
609 | } | |
610 | ||
611 | /* Initialize the demangled name of GSYMBOL if possible. Any required space | |
612 | to store the name is obtained from the specified obstack. The function | |
613 | symbol_set_names, above, should be used instead where possible for more | |
614 | efficient memory usage. */ | |
615 | ||
616 | void | |
617 | symbol_init_demangled_name (struct general_symbol_info *gsymbol, | |
618 | struct obstack *obstack) | |
619 | { | |
620 | char *mangled = gsymbol->name; | |
621 | char *demangled = NULL; | |
622 | ||
623 | demangled = symbol_find_demangled_name (gsymbol, mangled); | |
624 | if (gsymbol->language == language_cplus | |
1bae87b9 AF |
625 | || gsymbol->language == language_java |
626 | || gsymbol->language == language_objc) | |
2de7ced7 DJ |
627 | { |
628 | if (demangled) | |
629 | { | |
630 | gsymbol->language_specific.cplus_specific.demangled_name | |
631 | = obsavestring (demangled, strlen (demangled), obstack); | |
632 | xfree (demangled); | |
633 | } | |
12af6855 | 634 | else |
2de7ced7 DJ |
635 | gsymbol->language_specific.cplus_specific.demangled_name = NULL; |
636 | } | |
637 | else | |
638 | { | |
639 | /* Unknown language; just clean up quietly. */ | |
640 | if (demangled) | |
641 | xfree (demangled); | |
12af6855 | 642 | } |
12af6855 JB |
643 | } |
644 | ||
22abf04a DC |
645 | /* Return the source code name of a symbol. In languages where |
646 | demangling is necessary, this is the demangled name. */ | |
647 | ||
648 | char * | |
649 | symbol_natural_name (const struct general_symbol_info *gsymbol) | |
650 | { | |
651 | if ((gsymbol->language == language_cplus | |
652 | || gsymbol->language == language_java | |
653 | || gsymbol->language == language_objc) | |
654 | && (gsymbol->language_specific.cplus_specific.demangled_name != NULL)) | |
655 | { | |
656 | return gsymbol->language_specific.cplus_specific.demangled_name; | |
657 | } | |
658 | else | |
659 | { | |
660 | return gsymbol->name; | |
661 | } | |
662 | } | |
663 | ||
9cc0d196 EZ |
664 | /* Return the demangled name for a symbol based on the language for |
665 | that symbol. If no demangled name exists, return NULL. */ | |
666 | char * | |
667 | symbol_demangled_name (struct general_symbol_info *gsymbol) | |
668 | { | |
669 | if (gsymbol->language == language_cplus | |
5784d15e AF |
670 | || gsymbol->language == language_java |
671 | || gsymbol->language == language_objc) | |
9cc0d196 | 672 | return gsymbol->language_specific.cplus_specific.demangled_name; |
12af6855 | 673 | |
9cc0d196 EZ |
674 | else |
675 | return NULL; | |
9cc0d196 | 676 | } |
fe39c653 EZ |
677 | |
678 | /* Initialize the structure fields to zero values. */ | |
679 | void | |
680 | init_sal (struct symtab_and_line *sal) | |
681 | { | |
682 | sal->symtab = 0; | |
683 | sal->section = 0; | |
684 | sal->line = 0; | |
685 | sal->pc = 0; | |
686 | sal->end = 0; | |
687 | } | |
c906108c SS |
688 | \f |
689 | ||
c5aa993b | 690 | |
c906108c SS |
691 | /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */ |
692 | ||
693 | struct partial_symtab * | |
fba45db2 | 694 | find_pc_sect_psymtab (CORE_ADDR pc, asection *section) |
c906108c SS |
695 | { |
696 | register struct partial_symtab *pst; | |
697 | register struct objfile *objfile; | |
8a48e967 DJ |
698 | struct minimal_symbol *msymbol; |
699 | ||
700 | /* If we know that this is not a text address, return failure. This is | |
701 | necessary because we loop based on texthigh and textlow, which do | |
702 | not include the data ranges. */ | |
703 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
704 | if (msymbol | |
705 | && (msymbol->type == mst_data | |
706 | || msymbol->type == mst_bss | |
707 | || msymbol->type == mst_abs | |
708 | || msymbol->type == mst_file_data | |
709 | || msymbol->type == mst_file_bss)) | |
710 | return NULL; | |
c906108c SS |
711 | |
712 | ALL_PSYMTABS (objfile, pst) | |
c5aa993b | 713 | { |
c5aa993b | 714 | if (pc >= pst->textlow && pc < pst->texthigh) |
c5aa993b | 715 | { |
c5aa993b JM |
716 | struct partial_symtab *tpst; |
717 | ||
718 | /* An objfile that has its functions reordered might have | |
719 | many partial symbol tables containing the PC, but | |
720 | we want the partial symbol table that contains the | |
721 | function containing the PC. */ | |
722 | if (!(objfile->flags & OBJF_REORDERED) && | |
723 | section == 0) /* can't validate section this way */ | |
724 | return (pst); | |
725 | ||
c5aa993b JM |
726 | if (msymbol == NULL) |
727 | return (pst); | |
728 | ||
729 | for (tpst = pst; tpst != NULL; tpst = tpst->next) | |
730 | { | |
c5aa993b | 731 | if (pc >= tpst->textlow && pc < tpst->texthigh) |
c5aa993b JM |
732 | { |
733 | struct partial_symbol *p; | |
c906108c | 734 | |
c5aa993b JM |
735 | p = find_pc_sect_psymbol (tpst, pc, section); |
736 | if (p != NULL | |
737 | && SYMBOL_VALUE_ADDRESS (p) | |
738 | == SYMBOL_VALUE_ADDRESS (msymbol)) | |
739 | return (tpst); | |
740 | } | |
741 | } | |
742 | return (pst); | |
743 | } | |
744 | } | |
c906108c SS |
745 | return (NULL); |
746 | } | |
747 | ||
748 | /* Find which partial symtab contains PC. Return 0 if none. | |
749 | Backward compatibility, no section */ | |
750 | ||
751 | struct partial_symtab * | |
fba45db2 | 752 | find_pc_psymtab (CORE_ADDR pc) |
c906108c SS |
753 | { |
754 | return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc)); | |
755 | } | |
756 | ||
757 | /* Find which partial symbol within a psymtab matches PC and SECTION. | |
758 | Return 0 if none. Check all psymtabs if PSYMTAB is 0. */ | |
759 | ||
760 | struct partial_symbol * | |
fba45db2 KB |
761 | find_pc_sect_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc, |
762 | asection *section) | |
c906108c SS |
763 | { |
764 | struct partial_symbol *best = NULL, *p, **pp; | |
765 | CORE_ADDR best_pc; | |
c5aa993b | 766 | |
c906108c SS |
767 | if (!psymtab) |
768 | psymtab = find_pc_sect_psymtab (pc, section); | |
769 | if (!psymtab) | |
770 | return 0; | |
771 | ||
772 | /* Cope with programs that start at address 0 */ | |
773 | best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0; | |
774 | ||
775 | /* Search the global symbols as well as the static symbols, so that | |
776 | find_pc_partial_function doesn't use a minimal symbol and thus | |
777 | cache a bad endaddr. */ | |
778 | for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset; | |
c5aa993b JM |
779 | (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset) |
780 | < psymtab->n_global_syms); | |
c906108c SS |
781 | pp++) |
782 | { | |
783 | p = *pp; | |
176620f1 | 784 | if (SYMBOL_DOMAIN (p) == VAR_DOMAIN |
c906108c SS |
785 | && SYMBOL_CLASS (p) == LOC_BLOCK |
786 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
787 | && (SYMBOL_VALUE_ADDRESS (p) > best_pc | |
788 | || (psymtab->textlow == 0 | |
789 | && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0))) | |
790 | { | |
c5aa993b | 791 | if (section) /* match on a specific section */ |
c906108c SS |
792 | { |
793 | fixup_psymbol_section (p, psymtab->objfile); | |
794 | if (SYMBOL_BFD_SECTION (p) != section) | |
795 | continue; | |
796 | } | |
797 | best_pc = SYMBOL_VALUE_ADDRESS (p); | |
798 | best = p; | |
799 | } | |
800 | } | |
801 | ||
802 | for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset; | |
c5aa993b JM |
803 | (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset) |
804 | < psymtab->n_static_syms); | |
c906108c SS |
805 | pp++) |
806 | { | |
807 | p = *pp; | |
176620f1 | 808 | if (SYMBOL_DOMAIN (p) == VAR_DOMAIN |
c906108c SS |
809 | && SYMBOL_CLASS (p) == LOC_BLOCK |
810 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
811 | && (SYMBOL_VALUE_ADDRESS (p) > best_pc | |
c5aa993b | 812 | || (psymtab->textlow == 0 |
c906108c SS |
813 | && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0))) |
814 | { | |
c5aa993b | 815 | if (section) /* match on a specific section */ |
c906108c SS |
816 | { |
817 | fixup_psymbol_section (p, psymtab->objfile); | |
818 | if (SYMBOL_BFD_SECTION (p) != section) | |
819 | continue; | |
820 | } | |
821 | best_pc = SYMBOL_VALUE_ADDRESS (p); | |
822 | best = p; | |
823 | } | |
824 | } | |
825 | ||
826 | return best; | |
827 | } | |
828 | ||
829 | /* Find which partial symbol within a psymtab matches PC. Return 0 if none. | |
830 | Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */ | |
831 | ||
832 | struct partial_symbol * | |
fba45db2 | 833 | find_pc_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc) |
c906108c SS |
834 | { |
835 | return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc)); | |
836 | } | |
837 | \f | |
838 | /* Debug symbols usually don't have section information. We need to dig that | |
839 | out of the minimal symbols and stash that in the debug symbol. */ | |
840 | ||
841 | static void | |
fba45db2 | 842 | fixup_section (struct general_symbol_info *ginfo, struct objfile *objfile) |
c906108c SS |
843 | { |
844 | struct minimal_symbol *msym; | |
845 | msym = lookup_minimal_symbol (ginfo->name, NULL, objfile); | |
846 | ||
847 | if (msym) | |
7a78d0ee KB |
848 | { |
849 | ginfo->bfd_section = SYMBOL_BFD_SECTION (msym); | |
850 | ginfo->section = SYMBOL_SECTION (msym); | |
851 | } | |
c906108c SS |
852 | } |
853 | ||
854 | struct symbol * | |
fba45db2 | 855 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c SS |
856 | { |
857 | if (!sym) | |
858 | return NULL; | |
859 | ||
860 | if (SYMBOL_BFD_SECTION (sym)) | |
861 | return sym; | |
862 | ||
863 | fixup_section (&sym->ginfo, objfile); | |
864 | ||
865 | return sym; | |
866 | } | |
867 | ||
7a78d0ee | 868 | struct partial_symbol * |
fba45db2 | 869 | fixup_psymbol_section (struct partial_symbol *psym, struct objfile *objfile) |
c906108c SS |
870 | { |
871 | if (!psym) | |
872 | return NULL; | |
873 | ||
874 | if (SYMBOL_BFD_SECTION (psym)) | |
875 | return psym; | |
876 | ||
877 | fixup_section (&psym->ginfo, objfile); | |
878 | ||
879 | return psym; | |
880 | } | |
881 | ||
882 | /* Find the definition for a specified symbol name NAME | |
176620f1 | 883 | in domain DOMAIN, visible from lexical block BLOCK. |
c906108c SS |
884 | Returns the struct symbol pointer, or zero if no symbol is found. |
885 | If SYMTAB is non-NULL, store the symbol table in which the | |
886 | symbol was found there, or NULL if not found. | |
887 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if | |
888 | NAME is a field of the current implied argument `this'. If so set | |
889 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. | |
890 | BLOCK_FOUND is set to the block in which NAME is found (in the case of | |
891 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
892 | ||
893 | /* This function has a bunch of loops in it and it would seem to be | |
894 | attractive to put in some QUIT's (though I'm not really sure | |
895 | whether it can run long enough to be really important). But there | |
896 | are a few calls for which it would appear to be bad news to quit | |
7ca9f392 AC |
897 | out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c. (Note |
898 | that there is C++ code below which can error(), but that probably | |
899 | doesn't affect these calls since they are looking for a known | |
900 | variable and thus can probably assume it will never hit the C++ | |
901 | code). */ | |
c906108c SS |
902 | |
903 | struct symbol * | |
fba7f19c | 904 | lookup_symbol (const char *name, const struct block *block, |
176620f1 | 905 | const domain_enum domain, int *is_a_field_of_this, |
fba45db2 | 906 | struct symtab **symtab) |
c906108c | 907 | { |
729051e6 DJ |
908 | char *demangled_name = NULL; |
909 | const char *modified_name = NULL; | |
3121eff0 | 910 | const char *mangled_name = NULL; |
fba7f19c EZ |
911 | int needtofreename = 0; |
912 | struct symbol *returnval; | |
c906108c | 913 | |
729051e6 DJ |
914 | modified_name = name; |
915 | ||
916 | /* If we are using C++ language, demangle the name before doing a lookup, so | |
917 | we can always binary search. */ | |
918 | if (current_language->la_language == language_cplus) | |
919 | { | |
920 | demangled_name = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
921 | if (demangled_name) | |
922 | { | |
923 | mangled_name = name; | |
924 | modified_name = demangled_name; | |
925 | needtofreename = 1; | |
926 | } | |
927 | } | |
928 | ||
63872f9d JG |
929 | if (case_sensitivity == case_sensitive_off) |
930 | { | |
931 | char *copy; | |
932 | int len, i; | |
933 | ||
934 | len = strlen (name); | |
935 | copy = (char *) alloca (len + 1); | |
936 | for (i= 0; i < len; i++) | |
937 | copy[i] = tolower (name[i]); | |
938 | copy[len] = 0; | |
fba7f19c | 939 | modified_name = copy; |
63872f9d | 940 | } |
fba7f19c | 941 | |
3121eff0 | 942 | returnval = lookup_symbol_aux (modified_name, mangled_name, block, |
176620f1 | 943 | domain, is_a_field_of_this, symtab); |
fba7f19c | 944 | if (needtofreename) |
729051e6 | 945 | xfree (demangled_name); |
fba7f19c EZ |
946 | |
947 | return returnval; | |
948 | } | |
949 | ||
950 | static struct symbol * | |
3121eff0 | 951 | lookup_symbol_aux (const char *name, const char *mangled_name, |
176620f1 | 952 | const struct block *block, const domain_enum domain, |
3121eff0 | 953 | int *is_a_field_of_this, struct symtab **symtab) |
fba7f19c | 954 | { |
8155455b | 955 | struct symbol *sym; |
e4051eeb | 956 | const struct block *static_block; |
406bc4de | 957 | |
e4051eeb DC |
958 | /* Search specified block and its superiors. Don't search |
959 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 960 | |
176620f1 | 961 | sym = lookup_symbol_aux_local (name, mangled_name, block, domain, |
e4051eeb | 962 | symtab, &static_block); |
8155455b DC |
963 | if (sym != NULL) |
964 | return sym; | |
c906108c | 965 | |
8155455b DC |
966 | #if 0 |
967 | /* NOTE: carlton/2002-11-05: At the time that this code was | |
968 | #ifdeffed out, the value of 'block' was always NULL at this | |
969 | point, hence the bemused comments below. */ | |
c906108c SS |
970 | |
971 | /* FIXME: this code is never executed--block is always NULL at this | |
972 | point. What is it trying to do, anyway? We already should have | |
973 | checked the STATIC_BLOCK above (it is the superblock of top-level | |
176620f1 | 974 | blocks). Why is VAR_DOMAIN special-cased? */ |
c906108c SS |
975 | /* Don't need to mess with the psymtabs; if we have a block, |
976 | that file is read in. If we don't, then we deal later with | |
977 | all the psymtab stuff that needs checking. */ | |
978 | /* Note (RT): The following never-executed code looks unnecessary to me also. | |
979 | * If we change the code to use the original (passed-in) | |
980 | * value of 'block', we could cause it to execute, but then what | |
981 | * would it do? The STATIC_BLOCK of the symtab containing the passed-in | |
982 | * 'block' was already searched by the above code. And the STATIC_BLOCK's | |
983 | * of *other* symtabs (those files not containing 'block' lexically) | |
984 | * should not contain 'block' address-wise. So we wouldn't expect this | |
985 | * code to find any 'sym''s that were not found above. I vote for | |
986 | * deleting the following paragraph of code. | |
987 | */ | |
176620f1 | 988 | if (domain == VAR_DOMAIN && block != NULL) |
c906108c SS |
989 | { |
990 | struct block *b; | |
991 | /* Find the right symtab. */ | |
992 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
993 | { |
994 | bv = BLOCKVECTOR (s); | |
995 | b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
996 | if (BLOCK_START (b) <= BLOCK_START (block) | |
997 | && BLOCK_END (b) > BLOCK_START (block)) | |
998 | { | |
176620f1 | 999 | sym = lookup_block_symbol (b, name, mangled_name, VAR_DOMAIN); |
c5aa993b JM |
1000 | if (sym) |
1001 | { | |
1002 | block_found = b; | |
1003 | if (symtab != NULL) | |
1004 | *symtab = s; | |
1005 | return fixup_symbol_section (sym, objfile); | |
1006 | } | |
1007 | } | |
1008 | } | |
c906108c | 1009 | } |
8155455b | 1010 | #endif /* 0 */ |
c906108c | 1011 | |
1bae87b9 | 1012 | /* C++/Java/Objective-C: If requested to do so by the caller, |
c906108c SS |
1013 | check to see if NAME is a field of `this'. */ |
1014 | if (is_a_field_of_this) | |
1015 | { | |
1016 | struct value *v = value_of_this (0); | |
c5aa993b | 1017 | |
c906108c SS |
1018 | *is_a_field_of_this = 0; |
1019 | if (v && check_field (v, name)) | |
1020 | { | |
1021 | *is_a_field_of_this = 1; | |
1022 | if (symtab != NULL) | |
1023 | *symtab = NULL; | |
1024 | return NULL; | |
1025 | } | |
1026 | } | |
1027 | ||
e4051eeb DC |
1028 | /* If there's a static block to search, search it next. */ |
1029 | ||
1030 | /* NOTE: carlton/2002-12-05: There is a question as to whether or | |
1031 | not it would be appropriate to search the current global block | |
1032 | here as well. (That's what this code used to do before the | |
1033 | is_a_field_of_this check was moved up.) On the one hand, it's | |
1034 | redundant with the lookup_symbol_aux_symtabs search that happens | |
1035 | next. On the other hand, if decode_line_1 is passed an argument | |
1036 | like filename:var, then the user presumably wants 'var' to be | |
1037 | searched for in filename. On the third hand, there shouldn't be | |
1038 | multiple global variables all of which are named 'var', and it's | |
1039 | not like decode_line_1 has ever restricted its search to only | |
1040 | global variables in a single filename. All in all, only | |
1041 | searching the static block here seems best: it's correct and it's | |
1042 | cleanest. */ | |
1043 | ||
1044 | /* NOTE: carlton/2002-12-05: There's also a possible performance | |
1045 | issue here: if you usually search for global symbols in the | |
1046 | current file, then it would be slightly better to search the | |
1047 | current global block before searching all the symtabs. But there | |
1048 | are other factors that have a much greater effect on performance | |
1049 | than that one, so I don't think we should worry about that for | |
1050 | now. */ | |
1051 | ||
1052 | if (static_block != NULL) | |
1053 | { | |
1054 | sym = lookup_symbol_aux_block (name, mangled_name, static_block, | |
176620f1 | 1055 | domain, symtab); |
e4051eeb DC |
1056 | if (sym != NULL) |
1057 | return sym; | |
1058 | } | |
1059 | ||
c906108c SS |
1060 | /* Now search all global blocks. Do the symtab's first, then |
1061 | check the psymtab's. If a psymtab indicates the existence | |
1062 | of the desired name as a global, then do psymtab-to-symtab | |
1063 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 1064 | |
8155455b | 1065 | sym = lookup_symbol_aux_symtabs (GLOBAL_BLOCK, name, mangled_name, |
176620f1 | 1066 | domain, symtab); |
8155455b DC |
1067 | if (sym != NULL) |
1068 | return sym; | |
c906108c | 1069 | |
8155455b | 1070 | sym = lookup_symbol_aux_psymtabs (GLOBAL_BLOCK, name, mangled_name, |
176620f1 | 1071 | domain, symtab); |
8155455b DC |
1072 | if (sym != NULL) |
1073 | return sym; | |
c906108c | 1074 | |
8155455b DC |
1075 | /* Now search all static file-level symbols. Not strictly correct, |
1076 | but more useful than an error. Do the symtabs first, then check | |
1077 | the psymtabs. If a psymtab indicates the existence of the | |
1078 | desired name as a file-level static, then do psymtab-to-symtab | |
c906108c SS |
1079 | conversion on the fly and return the found symbol. */ |
1080 | ||
8155455b | 1081 | sym = lookup_symbol_aux_symtabs (STATIC_BLOCK, name, mangled_name, |
176620f1 | 1082 | domain, symtab); |
8155455b DC |
1083 | if (sym != NULL) |
1084 | return sym; | |
1085 | ||
1086 | sym = lookup_symbol_aux_psymtabs (STATIC_BLOCK, name, mangled_name, | |
176620f1 | 1087 | domain, symtab); |
8155455b DC |
1088 | if (sym != NULL) |
1089 | return sym; | |
c906108c | 1090 | |
c906108c SS |
1091 | if (symtab != NULL) |
1092 | *symtab = NULL; | |
8155455b | 1093 | return NULL; |
c906108c | 1094 | } |
8155455b | 1095 | |
e4051eeb DC |
1096 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
1097 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. If we don't find a | |
1098 | match, store the address of STATIC_BLOCK in static_block. */ | |
8155455b DC |
1099 | |
1100 | static struct symbol * | |
1101 | lookup_symbol_aux_local (const char *name, const char *mangled_name, | |
1102 | const struct block *block, | |
176620f1 | 1103 | const domain_enum domain, |
e4051eeb DC |
1104 | struct symtab **symtab, |
1105 | const struct block **static_block) | |
8155455b DC |
1106 | { |
1107 | struct symbol *sym; | |
f61e8913 | 1108 | |
e4051eeb DC |
1109 | /* Check if either no block is specified or it's a global block. */ |
1110 | ||
1111 | if (block == NULL || BLOCK_SUPERBLOCK (block) == NULL) | |
1112 | { | |
1113 | *static_block = NULL; | |
1114 | return NULL; | |
1115 | } | |
1116 | ||
1117 | while (BLOCK_SUPERBLOCK (BLOCK_SUPERBLOCK (block)) != NULL) | |
f61e8913 | 1118 | { |
176620f1 | 1119 | sym = lookup_symbol_aux_block (name, mangled_name, block, domain, |
f61e8913 DC |
1120 | symtab); |
1121 | if (sym != NULL) | |
1122 | return sym; | |
1123 | block = BLOCK_SUPERBLOCK (block); | |
1124 | } | |
1125 | ||
e4051eeb DC |
1126 | /* We've reached the static block. */ |
1127 | ||
1128 | *static_block = block; | |
f61e8913 DC |
1129 | return NULL; |
1130 | } | |
1131 | ||
1132 | /* Look up a symbol in a block; if found, locate its symtab, fixup the | |
1133 | symbol, and set block_found appropriately. */ | |
1134 | ||
1135 | static struct symbol * | |
1136 | lookup_symbol_aux_block (const char *name, const char *mangled_name, | |
1137 | const struct block *block, | |
176620f1 | 1138 | const domain_enum domain, |
f61e8913 DC |
1139 | struct symtab **symtab) |
1140 | { | |
1141 | struct symbol *sym; | |
8155455b DC |
1142 | struct objfile *objfile = NULL; |
1143 | struct blockvector *bv; | |
1144 | struct block *b; | |
1145 | struct symtab *s = NULL; | |
f61e8913 | 1146 | |
176620f1 | 1147 | sym = lookup_block_symbol (block, name, mangled_name, domain); |
f61e8913 | 1148 | if (sym) |
8155455b | 1149 | { |
f61e8913 DC |
1150 | block_found = block; |
1151 | if (symtab != NULL) | |
8155455b | 1152 | { |
f61e8913 DC |
1153 | /* Search the list of symtabs for one which contains the |
1154 | address of the start of this block. */ | |
1155 | ALL_SYMTABS (objfile, s) | |
8155455b | 1156 | { |
f61e8913 DC |
1157 | bv = BLOCKVECTOR (s); |
1158 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1159 | if (BLOCK_START (b) <= BLOCK_START (block) | |
1160 | && BLOCK_END (b) > BLOCK_START (block)) | |
1161 | goto found; | |
8155455b | 1162 | } |
f61e8913 DC |
1163 | found: |
1164 | *symtab = s; | |
8155455b | 1165 | } |
f61e8913 DC |
1166 | |
1167 | return fixup_symbol_section (sym, objfile); | |
8155455b DC |
1168 | } |
1169 | ||
1170 | return NULL; | |
1171 | } | |
1172 | ||
1173 | /* Check to see if the symbol is defined in one of the symtabs. | |
1174 | BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
1175 | depending on whether or not we want to search global symbols or | |
1176 | static symbols. */ | |
1177 | ||
1178 | static struct symbol * | |
1179 | lookup_symbol_aux_symtabs (int block_index, | |
1180 | const char *name, const char *mangled_name, | |
176620f1 | 1181 | const domain_enum domain, |
8155455b DC |
1182 | struct symtab **symtab) |
1183 | { | |
1184 | struct symbol *sym; | |
1185 | struct objfile *objfile; | |
1186 | struct blockvector *bv; | |
1187 | const struct block *block; | |
1188 | struct symtab *s; | |
1189 | ||
1190 | ALL_SYMTABS (objfile, s) | |
1191 | { | |
1192 | bv = BLOCKVECTOR (s); | |
1193 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
176620f1 | 1194 | sym = lookup_block_symbol (block, name, mangled_name, domain); |
8155455b DC |
1195 | if (sym) |
1196 | { | |
1197 | block_found = block; | |
1198 | if (symtab != NULL) | |
1199 | *symtab = s; | |
1200 | return fixup_symbol_section (sym, objfile); | |
1201 | } | |
1202 | } | |
1203 | ||
1204 | return NULL; | |
1205 | } | |
1206 | ||
1207 | /* Check to see if the symbol is defined in one of the partial | |
1208 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or | |
1209 | STATIC_BLOCK, depending on whether or not we want to search global | |
1210 | symbols or static symbols. */ | |
1211 | ||
1212 | static struct symbol * | |
1213 | lookup_symbol_aux_psymtabs (int block_index, const char *name, | |
1214 | const char *mangled_name, | |
176620f1 | 1215 | const domain_enum domain, |
8155455b DC |
1216 | struct symtab **symtab) |
1217 | { | |
1218 | struct symbol *sym; | |
1219 | struct objfile *objfile; | |
1220 | struct blockvector *bv; | |
1221 | const struct block *block; | |
1222 | struct partial_symtab *ps; | |
1223 | struct symtab *s; | |
1224 | const int psymtab_index = (block_index == GLOBAL_BLOCK ? 1 : 0); | |
1225 | ||
1226 | ALL_PSYMTABS (objfile, ps) | |
1227 | { | |
1228 | if (!ps->readin | |
3d4e8fd2 | 1229 | && lookup_partial_symbol (ps, name, mangled_name, |
176620f1 | 1230 | psymtab_index, domain)) |
8155455b DC |
1231 | { |
1232 | s = PSYMTAB_TO_SYMTAB (ps); | |
1233 | bv = BLOCKVECTOR (s); | |
1234 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
176620f1 | 1235 | sym = lookup_block_symbol (block, name, mangled_name, domain); |
8155455b DC |
1236 | if (!sym) |
1237 | { | |
1238 | /* This shouldn't be necessary, but as a last resort try | |
1239 | looking in the statics even though the psymtab claimed | |
1240 | the symbol was global, or vice-versa. It's possible | |
1241 | that the psymtab gets it wrong in some cases. */ | |
1242 | ||
1243 | /* FIXME: carlton/2002-09-30: Should we really do that? | |
1244 | If that happens, isn't it likely to be a GDB error, in | |
1245 | which case we should fix the GDB error rather than | |
1246 | silently dealing with it here? So I'd vote for | |
1247 | removing the check for the symbol in the other | |
1248 | block. */ | |
1249 | block = BLOCKVECTOR_BLOCK (bv, | |
1250 | block_index == GLOBAL_BLOCK ? | |
1251 | STATIC_BLOCK : GLOBAL_BLOCK); | |
176620f1 | 1252 | sym = lookup_block_symbol (block, name, mangled_name, domain); |
8155455b DC |
1253 | if (!sym) |
1254 | 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>).", | |
1255 | block_index == GLOBAL_BLOCK ? "global" : "static", | |
1256 | name, ps->filename, name, name); | |
1257 | } | |
1258 | if (symtab != NULL) | |
1259 | *symtab = s; | |
1260 | return fixup_symbol_section (sym, objfile); | |
1261 | } | |
1262 | } | |
1263 | ||
1264 | return NULL; | |
1265 | } | |
1266 | ||
ae2f03ac | 1267 | #if 0 |
406bc4de DC |
1268 | /* Check for the possibility of the symbol being a function or a |
1269 | mangled variable that is stored in one of the minimal symbol | |
1270 | tables. Eventually, all global symbols might be resolved in this | |
1271 | way. */ | |
1272 | ||
e45febe2 DC |
1273 | /* NOTE: carlton/2002-12-05: At one point, this function was part of |
1274 | lookup_symbol_aux, and what are now 'return' statements within | |
1275 | lookup_symbol_aux_minsyms returned from lookup_symbol_aux, even if | |
1276 | sym was NULL. As far as I can tell, this was basically accidental; | |
1277 | it didn't happen every time that msymbol was non-NULL, but only if | |
1278 | some additional conditions held as well, and it caused problems | |
1279 | with HP-generated symbol tables. */ | |
1280 | ||
ae2f03ac EZ |
1281 | /* NOTE: carlton/2003-05-14: This function was once used as part of |
1282 | lookup_symbol. It is currently unnecessary for correctness | |
1283 | reasons, however, and using it doesn't seem to be any faster than | |
1284 | using lookup_symbol_aux_psymtabs, so I'm commenting it out. */ | |
1285 | ||
406bc4de DC |
1286 | static struct symbol * |
1287 | lookup_symbol_aux_minsyms (const char *name, | |
1288 | const char *mangled_name, | |
176620f1 | 1289 | const domain_enum domain, |
406bc4de | 1290 | int *is_a_field_of_this, |
e45febe2 | 1291 | struct symtab **symtab) |
406bc4de DC |
1292 | { |
1293 | struct symbol *sym; | |
1294 | struct blockvector *bv; | |
1295 | const struct block *block; | |
1296 | struct minimal_symbol *msymbol; | |
1297 | struct symtab *s; | |
1298 | ||
176620f1 | 1299 | if (domain == VAR_DOMAIN) |
406bc4de DC |
1300 | { |
1301 | msymbol = lookup_minimal_symbol (name, NULL, NULL); | |
1302 | ||
1303 | if (msymbol != NULL) | |
1304 | { | |
1305 | /* OK, we found a minimal symbol in spite of not finding any | |
1306 | symbol. There are various possible explanations for | |
1307 | this. One possibility is the symbol exists in code not | |
1308 | compiled -g. Another possibility is that the 'psymtab' | |
1309 | isn't doing its job. A third possibility, related to #2, | |
1310 | is that we were confused by name-mangling. For instance, | |
1311 | maybe the psymtab isn't doing its job because it only | |
1312 | know about demangled names, but we were given a mangled | |
1313 | name... */ | |
1314 | ||
1315 | /* We first use the address in the msymbol to try to locate | |
1316 | the appropriate symtab. Note that find_pc_sect_symtab() | |
1317 | has a side-effect of doing psymtab-to-symtab expansion, | |
1318 | for the found symtab. */ | |
1319 | s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol), | |
1320 | SYMBOL_BFD_SECTION (msymbol)); | |
1321 | if (s != NULL) | |
1322 | { | |
1323 | /* This is a function which has a symtab for its address. */ | |
1324 | bv = BLOCKVECTOR (s); | |
1325 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1326 | ||
22abf04a | 1327 | /* This call used to pass `DEPRECATED_SYMBOL_NAME (msymbol)' as the |
406bc4de DC |
1328 | `name' argument to lookup_block_symbol. But the name |
1329 | of a minimal symbol is always mangled, so that seems | |
1330 | to be clearly the wrong thing to pass as the | |
1331 | unmangled name. */ | |
1332 | sym = | |
176620f1 | 1333 | lookup_block_symbol (block, name, mangled_name, domain); |
406bc4de DC |
1334 | /* We kept static functions in minimal symbol table as well as |
1335 | in static scope. We want to find them in the symbol table. */ | |
1336 | if (!sym) | |
1337 | { | |
1338 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1339 | sym = lookup_block_symbol (block, name, | |
176620f1 | 1340 | mangled_name, domain); |
406bc4de DC |
1341 | } |
1342 | ||
1343 | /* NOTE: carlton/2002-12-04: The following comment was | |
1344 | taken from a time when two versions of this function | |
1345 | were part of the body of lookup_symbol_aux: this | |
1346 | comment was taken from the version of the function | |
1347 | that was #ifdef HPUXHPPA, and the comment was right | |
1348 | before the 'return NULL' part of lookup_symbol_aux. | |
1349 | (Hence the "Fall through and return 0" comment.) | |
1350 | Elena did some digging into the situation for | |
1351 | Fortran, and she reports: | |
1352 | ||
1353 | "I asked around (thanks to Jeff Knaggs), and I think | |
1354 | the story for Fortran goes like this: | |
1355 | ||
1356 | "Apparently, in older Fortrans, '_' was not part of | |
1357 | the user namespace. g77 attached a final '_' to | |
1358 | procedure names as the exported symbols for linkage | |
1359 | (foo_) , but the symbols went in the debug info just | |
1360 | like 'foo'. The rationale behind this is not | |
1361 | completely clear, and maybe it was done to other | |
1362 | symbols as well, not just procedures." */ | |
1363 | ||
1364 | /* If we get here with sym == 0, the symbol was | |
1365 | found in the minimal symbol table | |
1366 | but not in the symtab. | |
1367 | Fall through and return 0 to use the msymbol | |
1368 | definition of "foo_". | |
1369 | (Note that outer code generally follows up a call | |
1370 | to this routine with a call to lookup_minimal_symbol(), | |
1371 | so a 0 return means we'll just flow into that other routine). | |
1372 | ||
1373 | This happens for Fortran "foo_" symbols, | |
1374 | which are "foo" in the symtab. | |
1375 | ||
1376 | This can also happen if "asm" is used to make a | |
1377 | regular symbol but not a debugging symbol, e.g. | |
1378 | asm(".globl _main"); | |
1379 | asm("_main:"); | |
1380 | */ | |
1381 | ||
1382 | if (symtab != NULL && sym != NULL) | |
1383 | *symtab = s; | |
406bc4de DC |
1384 | return fixup_symbol_section (sym, s->objfile); |
1385 | } | |
406bc4de DC |
1386 | } |
1387 | } | |
1388 | ||
1389 | return NULL; | |
1390 | } | |
ae2f03ac | 1391 | #endif /* 0 */ |
406bc4de | 1392 | |
3d4e8fd2 DC |
1393 | /* Look, in partial_symtab PST, for symbol whose natural name is NAME. |
1394 | If LINKAGE_NAME is non-NULL, check in addition that the symbol's | |
1395 | linkage name matches it. Check the global symbols if GLOBAL, the | |
1396 | static symbols if not */ | |
c906108c SS |
1397 | |
1398 | static struct partial_symbol * | |
3d4e8fd2 DC |
1399 | lookup_partial_symbol (struct partial_symtab *pst, const char *name, |
1400 | const char *linkage_name, int global, | |
176620f1 | 1401 | domain_enum domain) |
c906108c | 1402 | { |
357e46e7 | 1403 | struct partial_symbol *temp; |
c906108c | 1404 | struct partial_symbol **start, **psym; |
38d49aff | 1405 | struct partial_symbol **top, **real_top, **bottom, **center; |
c906108c SS |
1406 | int length = (global ? pst->n_global_syms : pst->n_static_syms); |
1407 | int do_linear_search = 1; | |
357e46e7 | 1408 | |
c906108c SS |
1409 | if (length == 0) |
1410 | { | |
1411 | return (NULL); | |
1412 | } | |
c906108c SS |
1413 | start = (global ? |
1414 | pst->objfile->global_psymbols.list + pst->globals_offset : | |
c5aa993b | 1415 | pst->objfile->static_psymbols.list + pst->statics_offset); |
357e46e7 | 1416 | |
c5aa993b | 1417 | if (global) /* This means we can use a binary search. */ |
c906108c SS |
1418 | { |
1419 | do_linear_search = 0; | |
1420 | ||
1421 | /* Binary search. This search is guaranteed to end with center | |
0fe19209 DC |
1422 | pointing at the earliest partial symbol whose name might be |
1423 | correct. At that point *all* partial symbols with an | |
1424 | appropriate name will be checked against the correct | |
176620f1 | 1425 | domain. */ |
c906108c SS |
1426 | |
1427 | bottom = start; | |
1428 | top = start + length - 1; | |
38d49aff | 1429 | real_top = top; |
c906108c SS |
1430 | while (top > bottom) |
1431 | { | |
1432 | center = bottom + (top - bottom) / 2; | |
1433 | if (!(center < top)) | |
e1e9e218 | 1434 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c | 1435 | if (!do_linear_search |
357e46e7 | 1436 | && (SYMBOL_LANGUAGE (*center) == language_java)) |
c906108c SS |
1437 | { |
1438 | do_linear_search = 1; | |
1439 | } | |
c8be8951 | 1440 | if (strcmp_iw_ordered (SYMBOL_NATURAL_NAME (*center), name) >= 0) |
c906108c SS |
1441 | { |
1442 | top = center; | |
1443 | } | |
1444 | else | |
1445 | { | |
1446 | bottom = center + 1; | |
1447 | } | |
1448 | } | |
1449 | if (!(top == bottom)) | |
e1e9e218 | 1450 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
357e46e7 | 1451 | |
3d4e8fd2 DC |
1452 | while (top <= real_top |
1453 | && (linkage_name != NULL | |
1454 | ? strcmp (SYMBOL_LINKAGE_NAME (*top), linkage_name) == 0 | |
1455 | : SYMBOL_MATCHES_NATURAL_NAME (*top,name))) | |
c906108c | 1456 | { |
176620f1 | 1457 | if (SYMBOL_DOMAIN (*top) == domain) |
c906108c | 1458 | { |
357e46e7 | 1459 | return (*top); |
c906108c | 1460 | } |
c5aa993b | 1461 | top++; |
c906108c SS |
1462 | } |
1463 | } | |
1464 | ||
1465 | /* Can't use a binary search or else we found during the binary search that | |
1466 | we should also do a linear search. */ | |
1467 | ||
1468 | if (do_linear_search) | |
357e46e7 | 1469 | { |
c906108c SS |
1470 | for (psym = start; psym < start + length; psym++) |
1471 | { | |
176620f1 | 1472 | if (domain == SYMBOL_DOMAIN (*psym)) |
c906108c | 1473 | { |
3d4e8fd2 DC |
1474 | if (linkage_name != NULL |
1475 | ? strcmp (SYMBOL_LINKAGE_NAME (*psym), linkage_name) == 0 | |
1476 | : SYMBOL_MATCHES_NATURAL_NAME (*psym, name)) | |
c906108c SS |
1477 | { |
1478 | return (*psym); | |
1479 | } | |
1480 | } | |
1481 | } | |
1482 | } | |
1483 | ||
1484 | return (NULL); | |
1485 | } | |
1486 | ||
176620f1 | 1487 | /* Look up a type named NAME in the struct_domain. The type returned |
c906108c SS |
1488 | must not be opaque -- i.e., must have at least one field defined |
1489 | ||
1490 | This code was modelled on lookup_symbol -- the parts not relevant to looking | |
1491 | up types were just left out. In particular it's assumed here that types | |
176620f1 | 1492 | are available in struct_domain and only at file-static or global blocks. */ |
c906108c SS |
1493 | |
1494 | ||
1495 | struct type * | |
fba45db2 | 1496 | lookup_transparent_type (const char *name) |
c906108c SS |
1497 | { |
1498 | register struct symbol *sym; | |
1499 | register struct symtab *s = NULL; | |
1500 | register struct partial_symtab *ps; | |
1501 | struct blockvector *bv; | |
1502 | register struct objfile *objfile; | |
1503 | register struct block *block; | |
c906108c SS |
1504 | |
1505 | /* Now search all the global symbols. Do the symtab's first, then | |
1506 | check the psymtab's. If a psymtab indicates the existence | |
1507 | of the desired name as a global, then do psymtab-to-symtab | |
1508 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 1509 | |
c906108c | 1510 | ALL_SYMTABS (objfile, s) |
c5aa993b JM |
1511 | { |
1512 | bv = BLOCKVECTOR (s); | |
1513 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
176620f1 | 1514 | sym = lookup_block_symbol (block, name, NULL, STRUCT_DOMAIN); |
c5aa993b JM |
1515 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
1516 | { | |
1517 | return SYMBOL_TYPE (sym); | |
1518 | } | |
1519 | } | |
c906108c SS |
1520 | |
1521 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b | 1522 | { |
3d4e8fd2 | 1523 | if (!ps->readin && lookup_partial_symbol (ps, name, NULL, |
176620f1 | 1524 | 1, STRUCT_DOMAIN)) |
c5aa993b JM |
1525 | { |
1526 | s = PSYMTAB_TO_SYMTAB (ps); | |
1527 | bv = BLOCKVECTOR (s); | |
1528 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
176620f1 | 1529 | sym = lookup_block_symbol (block, name, NULL, STRUCT_DOMAIN); |
c5aa993b JM |
1530 | if (!sym) |
1531 | { | |
1532 | /* This shouldn't be necessary, but as a last resort | |
1533 | * try looking in the statics even though the psymtab | |
1534 | * claimed the symbol was global. It's possible that | |
1535 | * the psymtab gets it wrong in some cases. | |
1536 | */ | |
1537 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
176620f1 | 1538 | sym = lookup_block_symbol (block, name, NULL, STRUCT_DOMAIN); |
c5aa993b JM |
1539 | if (!sym) |
1540 | error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\ | |
c906108c SS |
1541 | %s may be an inlined function, or may be a template function\n\ |
1542 | (if a template, try specifying an instantiation: %s<type>).", | |
c5aa993b JM |
1543 | name, ps->filename, name, name); |
1544 | } | |
1545 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1546 | return SYMBOL_TYPE (sym); | |
1547 | } | |
1548 | } | |
c906108c SS |
1549 | |
1550 | /* Now search the static file-level symbols. | |
1551 | Not strictly correct, but more useful than an error. | |
1552 | Do the symtab's first, then | |
1553 | check the psymtab's. If a psymtab indicates the existence | |
1554 | of the desired name as a file-level static, then do psymtab-to-symtab | |
1555 | conversion on the fly and return the found symbol. | |
1556 | */ | |
1557 | ||
1558 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
1559 | { |
1560 | bv = BLOCKVECTOR (s); | |
1561 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
176620f1 | 1562 | sym = lookup_block_symbol (block, name, NULL, STRUCT_DOMAIN); |
c5aa993b JM |
1563 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
1564 | { | |
1565 | return SYMBOL_TYPE (sym); | |
1566 | } | |
1567 | } | |
c906108c SS |
1568 | |
1569 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b | 1570 | { |
176620f1 | 1571 | if (!ps->readin && lookup_partial_symbol (ps, name, NULL, 0, STRUCT_DOMAIN)) |
c5aa993b JM |
1572 | { |
1573 | s = PSYMTAB_TO_SYMTAB (ps); | |
1574 | bv = BLOCKVECTOR (s); | |
1575 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
176620f1 | 1576 | sym = lookup_block_symbol (block, name, NULL, STRUCT_DOMAIN); |
c5aa993b JM |
1577 | if (!sym) |
1578 | { | |
1579 | /* This shouldn't be necessary, but as a last resort | |
1580 | * try looking in the globals even though the psymtab | |
1581 | * claimed the symbol was static. It's possible that | |
1582 | * the psymtab gets it wrong in some cases. | |
1583 | */ | |
1584 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
176620f1 | 1585 | sym = lookup_block_symbol (block, name, NULL, STRUCT_DOMAIN); |
c5aa993b JM |
1586 | if (!sym) |
1587 | error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\ | |
c906108c SS |
1588 | %s may be an inlined function, or may be a template function\n\ |
1589 | (if a template, try specifying an instantiation: %s<type>).", | |
c5aa993b JM |
1590 | name, ps->filename, name, name); |
1591 | } | |
1592 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1593 | return SYMBOL_TYPE (sym); | |
1594 | } | |
1595 | } | |
c906108c SS |
1596 | return (struct type *) 0; |
1597 | } | |
1598 | ||
1599 | ||
1600 | /* Find the psymtab containing main(). */ | |
1601 | /* FIXME: What about languages without main() or specially linked | |
1602 | executables that have no main() ? */ | |
1603 | ||
1604 | struct partial_symtab * | |
fba45db2 | 1605 | find_main_psymtab (void) |
c906108c SS |
1606 | { |
1607 | register struct partial_symtab *pst; | |
1608 | register struct objfile *objfile; | |
1609 | ||
1610 | ALL_PSYMTABS (objfile, pst) | |
c5aa993b | 1611 | { |
176620f1 | 1612 | if (lookup_partial_symbol (pst, main_name (), NULL, 1, VAR_DOMAIN)) |
c5aa993b JM |
1613 | { |
1614 | return (pst); | |
1615 | } | |
1616 | } | |
c906108c SS |
1617 | return (NULL); |
1618 | } | |
1619 | ||
176620f1 | 1620 | /* Search BLOCK for symbol NAME in DOMAIN. |
c906108c SS |
1621 | |
1622 | Note that if NAME is the demangled form of a C++ symbol, we will fail | |
1623 | to find a match during the binary search of the non-encoded names, but | |
1624 | for now we don't worry about the slight inefficiency of looking for | |
1625 | a match we'll never find, since it will go pretty quick. Once the | |
1626 | binary search terminates, we drop through and do a straight linear | |
1bae87b9 AF |
1627 | search on the symbols. Each symbol which is marked as being a ObjC/C++ |
1628 | symbol (language_cplus or language_objc set) has both the encoded and | |
1629 | non-encoded names tested for a match. | |
3121eff0 DJ |
1630 | |
1631 | If MANGLED_NAME is non-NULL, verify that any symbol we find has this | |
1632 | particular mangled name. | |
1633 | */ | |
c906108c SS |
1634 | |
1635 | struct symbol * | |
fba45db2 | 1636 | lookup_block_symbol (register const struct block *block, const char *name, |
3121eff0 | 1637 | const char *mangled_name, |
176620f1 | 1638 | const domain_enum domain) |
c906108c SS |
1639 | { |
1640 | register int bot, top, inc; | |
1641 | register struct symbol *sym; | |
1642 | register struct symbol *sym_found = NULL; | |
1643 | register int do_linear_search = 1; | |
1644 | ||
261397f8 DJ |
1645 | if (BLOCK_HASHTABLE (block)) |
1646 | { | |
1647 | unsigned int hash_index; | |
1648 | hash_index = msymbol_hash_iw (name); | |
1649 | hash_index = hash_index % BLOCK_BUCKETS (block); | |
1650 | for (sym = BLOCK_BUCKET (block, hash_index); sym; sym = sym->hash_next) | |
1651 | { | |
176620f1 | 1652 | if (SYMBOL_DOMAIN (sym) == domain |
261397f8 | 1653 | && (mangled_name |
22abf04a | 1654 | ? strcmp (DEPRECATED_SYMBOL_NAME (sym), mangled_name) == 0 |
8e437497 | 1655 | : SYMBOL_MATCHES_NATURAL_NAME (sym, name))) |
261397f8 DJ |
1656 | return sym; |
1657 | } | |
1658 | return NULL; | |
1659 | } | |
1660 | ||
c906108c SS |
1661 | /* If the blocks's symbols were sorted, start with a binary search. */ |
1662 | ||
1663 | if (BLOCK_SHOULD_SORT (block)) | |
1664 | { | |
1665 | /* Reset the linear search flag so if the binary search fails, we | |
c5aa993b | 1666 | won't do the linear search once unless we find some reason to |
fba7f19c | 1667 | do so */ |
c906108c SS |
1668 | |
1669 | do_linear_search = 0; | |
1670 | top = BLOCK_NSYMS (block); | |
1671 | bot = 0; | |
1672 | ||
1673 | /* Advance BOT to not far before the first symbol whose name is NAME. */ | |
1674 | ||
1675 | while (1) | |
1676 | { | |
1677 | inc = (top - bot + 1); | |
1678 | /* No need to keep binary searching for the last few bits worth. */ | |
1679 | if (inc < 4) | |
1680 | { | |
1681 | break; | |
1682 | } | |
1683 | inc = (inc >> 1) + bot; | |
1684 | sym = BLOCK_SYM (block, inc); | |
fba7f19c | 1685 | if (!do_linear_search && (SYMBOL_LANGUAGE (sym) == language_java)) |
c906108c SS |
1686 | { |
1687 | do_linear_search = 1; | |
1688 | } | |
c8be8951 | 1689 | if (SYMBOL_NATURAL_NAME (sym)[0] < name[0]) |
c906108c SS |
1690 | { |
1691 | bot = inc; | |
1692 | } | |
c8be8951 | 1693 | else if (SYMBOL_NATURAL_NAME (sym)[0] > name[0]) |
c906108c SS |
1694 | { |
1695 | top = inc; | |
1696 | } | |
c8be8951 | 1697 | else if (strcmp (SYMBOL_NATURAL_NAME (sym), name) < 0) |
c906108c SS |
1698 | { |
1699 | bot = inc; | |
1700 | } | |
1701 | else | |
1702 | { | |
1703 | top = inc; | |
1704 | } | |
1705 | } | |
1706 | ||
1707 | /* Now scan forward until we run out of symbols, find one whose | |
c5aa993b | 1708 | name is greater than NAME, or find one we want. If there is |
176620f1 | 1709 | more than one symbol with the right name and domain, we |
c5aa993b | 1710 | return the first one; I believe it is now impossible for us |
176620f1 | 1711 | to encounter two symbols with the same name and domain |
c5aa993b | 1712 | here, because blocks containing argument symbols are no |
3121eff0 DJ |
1713 | longer sorted. The exception is for C++, where multiple functions |
1714 | (cloned constructors / destructors, in particular) can have | |
1715 | the same demangled name. So if we have a particular | |
1716 | mangled name to match, try to do so. */ | |
c906108c SS |
1717 | |
1718 | top = BLOCK_NSYMS (block); | |
1719 | while (bot < top) | |
1720 | { | |
1721 | sym = BLOCK_SYM (block, bot); | |
176620f1 | 1722 | if (SYMBOL_DOMAIN (sym) == domain |
3121eff0 | 1723 | && (mangled_name |
22abf04a | 1724 | ? strcmp (DEPRECATED_SYMBOL_NAME (sym), mangled_name) == 0 |
8e437497 | 1725 | : SYMBOL_MATCHES_NATURAL_NAME (sym, name))) |
c9049fc9 MC |
1726 | { |
1727 | return sym; | |
1728 | } | |
de5ad195 | 1729 | if (SYMBOL_PRINT_NAME (sym)[0] > name[0]) |
1ba7c32c JM |
1730 | { |
1731 | break; | |
1732 | } | |
c906108c SS |
1733 | bot++; |
1734 | } | |
1735 | } | |
1736 | ||
1737 | /* Here if block isn't sorted, or we fail to find a match during the | |
1738 | binary search above. If during the binary search above, we find a | |
8cc1c882 | 1739 | symbol which is a Java symbol, then we have re-enabled the linear |
c906108c SS |
1740 | search flag which was reset when starting the binary search. |
1741 | ||
1742 | This loop is equivalent to the loop above, but hacked greatly for speed. | |
1743 | ||
1744 | Note that parameter symbols do not always show up last in the | |
1745 | list; this loop makes sure to take anything else other than | |
1746 | parameter symbols first; it only uses parameter symbols as a | |
1747 | last resort. Note that this only takes up extra computation | |
1748 | time on a match. */ | |
1749 | ||
1750 | if (do_linear_search) | |
1751 | { | |
1752 | top = BLOCK_NSYMS (block); | |
1753 | bot = 0; | |
1754 | while (bot < top) | |
1755 | { | |
1756 | sym = BLOCK_SYM (block, bot); | |
176620f1 | 1757 | if (SYMBOL_DOMAIN (sym) == domain |
3121eff0 | 1758 | && (mangled_name |
22abf04a | 1759 | ? strcmp (DEPRECATED_SYMBOL_NAME (sym), mangled_name) == 0 |
8e437497 | 1760 | : SYMBOL_MATCHES_NATURAL_NAME (sym, name))) |
c906108c SS |
1761 | { |
1762 | /* If SYM has aliases, then use any alias that is active | |
c5aa993b JM |
1763 | at the current PC. If no alias is active at the current |
1764 | PC, then use the main symbol. | |
c906108c | 1765 | |
c5aa993b | 1766 | ?!? Is checking the current pc correct? Is this routine |
a0b3c4fd JM |
1767 | ever called to look up a symbol from another context? |
1768 | ||
1769 | FIXME: No, it's not correct. If someone sets a | |
1770 | conditional breakpoint at an address, then the | |
1771 | breakpoint's `struct expression' should refer to the | |
1772 | `struct symbol' appropriate for the breakpoint's | |
1773 | address, which may not be the PC. | |
1774 | ||
1775 | Even if it were never called from another context, | |
1776 | it's totally bizarre for lookup_symbol's behavior to | |
1777 | depend on the value of the inferior's current PC. We | |
1778 | should pass in the appropriate PC as well as the | |
1779 | block. The interface to lookup_symbol should change | |
1780 | to require the caller to provide a PC. */ | |
1781 | ||
c5aa993b JM |
1782 | if (SYMBOL_ALIASES (sym)) |
1783 | sym = find_active_alias (sym, read_pc ()); | |
c906108c SS |
1784 | |
1785 | sym_found = sym; | |
1786 | if (SYMBOL_CLASS (sym) != LOC_ARG && | |
1787 | SYMBOL_CLASS (sym) != LOC_LOCAL_ARG && | |
1788 | SYMBOL_CLASS (sym) != LOC_REF_ARG && | |
1789 | SYMBOL_CLASS (sym) != LOC_REGPARM && | |
1790 | SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR && | |
4c2df51b DJ |
1791 | SYMBOL_CLASS (sym) != LOC_BASEREG_ARG && |
1792 | SYMBOL_CLASS (sym) != LOC_COMPUTED_ARG) | |
c906108c SS |
1793 | { |
1794 | break; | |
1795 | } | |
1796 | } | |
1797 | bot++; | |
1798 | } | |
1799 | } | |
1800 | return (sym_found); /* Will be NULL if not found. */ | |
1801 | } | |
1802 | ||
1803 | /* Given a main symbol SYM and ADDR, search through the alias | |
1804 | list to determine if an alias is active at ADDR and return | |
1805 | the active alias. | |
1806 | ||
1807 | If no alias is active, then return SYM. */ | |
1808 | ||
1809 | static struct symbol * | |
fba45db2 | 1810 | find_active_alias (struct symbol *sym, CORE_ADDR addr) |
c906108c SS |
1811 | { |
1812 | struct range_list *r; | |
1813 | struct alias_list *aliases; | |
1814 | ||
1815 | /* If we have aliases, check them first. */ | |
1816 | aliases = SYMBOL_ALIASES (sym); | |
1817 | ||
1818 | while (aliases) | |
1819 | { | |
1820 | if (!SYMBOL_RANGES (aliases->sym)) | |
c5aa993b | 1821 | return aliases->sym; |
c906108c SS |
1822 | for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next) |
1823 | { | |
1824 | if (r->start <= addr && r->end > addr) | |
1825 | return aliases->sym; | |
1826 | } | |
1827 | aliases = aliases->next; | |
1828 | } | |
1829 | ||
1830 | /* Nothing found, return the main symbol. */ | |
1831 | return sym; | |
1832 | } | |
c906108c | 1833 | \f |
c5aa993b | 1834 | |
c906108c SS |
1835 | /* Find the symtab associated with PC and SECTION. Look through the |
1836 | psymtabs and read in another symtab if necessary. */ | |
1837 | ||
1838 | struct symtab * | |
fba45db2 | 1839 | find_pc_sect_symtab (CORE_ADDR pc, asection *section) |
c906108c SS |
1840 | { |
1841 | register struct block *b; | |
1842 | struct blockvector *bv; | |
1843 | register struct symtab *s = NULL; | |
1844 | register struct symtab *best_s = NULL; | |
1845 | register struct partial_symtab *ps; | |
1846 | register struct objfile *objfile; | |
1847 | CORE_ADDR distance = 0; | |
8a48e967 DJ |
1848 | struct minimal_symbol *msymbol; |
1849 | ||
1850 | /* If we know that this is not a text address, return failure. This is | |
1851 | necessary because we loop based on the block's high and low code | |
1852 | addresses, which do not include the data ranges, and because | |
1853 | we call find_pc_sect_psymtab which has a similar restriction based | |
1854 | on the partial_symtab's texthigh and textlow. */ | |
1855 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
1856 | if (msymbol | |
1857 | && (msymbol->type == mst_data | |
1858 | || msymbol->type == mst_bss | |
1859 | || msymbol->type == mst_abs | |
1860 | || msymbol->type == mst_file_data | |
1861 | || msymbol->type == mst_file_bss)) | |
1862 | return NULL; | |
c906108c SS |
1863 | |
1864 | /* Search all symtabs for the one whose file contains our address, and which | |
1865 | is the smallest of all the ones containing the address. This is designed | |
1866 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
1867 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
1868 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
1869 | ||
1870 | This happens for native ecoff format, where code from included files | |
1871 | gets its own symtab. The symtab for the included file should have | |
1872 | been read in already via the dependency mechanism. | |
1873 | It might be swifter to create several symtabs with the same name | |
1874 | like xcoff does (I'm not sure). | |
1875 | ||
1876 | It also happens for objfiles that have their functions reordered. | |
1877 | For these, the symtab we are looking for is not necessarily read in. */ | |
1878 | ||
1879 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
1880 | { |
1881 | bv = BLOCKVECTOR (s); | |
1882 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
c906108c | 1883 | |
c5aa993b | 1884 | if (BLOCK_START (b) <= pc |
c5aa993b | 1885 | && BLOCK_END (b) > pc |
c5aa993b JM |
1886 | && (distance == 0 |
1887 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
1888 | { | |
1889 | /* For an objfile that has its functions reordered, | |
1890 | find_pc_psymtab will find the proper partial symbol table | |
1891 | and we simply return its corresponding symtab. */ | |
1892 | /* In order to better support objfiles that contain both | |
1893 | stabs and coff debugging info, we continue on if a psymtab | |
1894 | can't be found. */ | |
1895 | if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs) | |
1896 | { | |
1897 | ps = find_pc_sect_psymtab (pc, section); | |
1898 | if (ps) | |
1899 | return PSYMTAB_TO_SYMTAB (ps); | |
1900 | } | |
1901 | if (section != 0) | |
1902 | { | |
1903 | int i; | |
261397f8 | 1904 | struct symbol *sym = NULL; |
c906108c | 1905 | |
261397f8 | 1906 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 1907 | { |
261397f8 DJ |
1908 | fixup_symbol_section (sym, objfile); |
1909 | if (section == SYMBOL_BFD_SECTION (sym)) | |
c5aa993b JM |
1910 | break; |
1911 | } | |
261397f8 | 1912 | if ((i >= BLOCK_BUCKETS (b)) && (sym == NULL)) |
c5aa993b JM |
1913 | continue; /* no symbol in this symtab matches section */ |
1914 | } | |
1915 | distance = BLOCK_END (b) - BLOCK_START (b); | |
1916 | best_s = s; | |
1917 | } | |
1918 | } | |
c906108c SS |
1919 | |
1920 | if (best_s != NULL) | |
c5aa993b | 1921 | return (best_s); |
c906108c SS |
1922 | |
1923 | s = NULL; | |
1924 | ps = find_pc_sect_psymtab (pc, section); | |
1925 | if (ps) | |
1926 | { | |
1927 | if (ps->readin) | |
1928 | /* Might want to error() here (in case symtab is corrupt and | |
1929 | will cause a core dump), but maybe we can successfully | |
1930 | continue, so let's not. */ | |
c906108c | 1931 | warning ("\ |
d730266b AC |
1932 | (Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n", |
1933 | paddr_nz (pc)); | |
c906108c SS |
1934 | s = PSYMTAB_TO_SYMTAB (ps); |
1935 | } | |
1936 | return (s); | |
1937 | } | |
1938 | ||
1939 | /* Find the symtab associated with PC. Look through the psymtabs and | |
1940 | read in another symtab if necessary. Backward compatibility, no section */ | |
1941 | ||
1942 | struct symtab * | |
fba45db2 | 1943 | find_pc_symtab (CORE_ADDR pc) |
c906108c SS |
1944 | { |
1945 | return find_pc_sect_symtab (pc, find_pc_mapped_section (pc)); | |
1946 | } | |
c906108c | 1947 | \f |
c5aa993b | 1948 | |
7e73cedf | 1949 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
1950 | Return a structure containing a symtab pointer, a line number, |
1951 | and a pc range for the entire source line. | |
1952 | The value's .pc field is NOT the specified pc. | |
1953 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
1954 | use the line that ends there. Otherwise, in that case, the line | |
1955 | that begins there is used. */ | |
1956 | ||
1957 | /* The big complication here is that a line may start in one file, and end just | |
1958 | before the start of another file. This usually occurs when you #include | |
1959 | code in the middle of a subroutine. To properly find the end of a line's PC | |
1960 | range, we must search all symtabs associated with this compilation unit, and | |
1961 | find the one whose first PC is closer than that of the next line in this | |
1962 | symtab. */ | |
1963 | ||
1964 | /* If it's worth the effort, we could be using a binary search. */ | |
1965 | ||
1966 | struct symtab_and_line | |
fba45db2 | 1967 | find_pc_sect_line (CORE_ADDR pc, struct sec *section, int notcurrent) |
c906108c SS |
1968 | { |
1969 | struct symtab *s; | |
1970 | register struct linetable *l; | |
1971 | register int len; | |
1972 | register int i; | |
1973 | register struct linetable_entry *item; | |
1974 | struct symtab_and_line val; | |
1975 | struct blockvector *bv; | |
1976 | struct minimal_symbol *msymbol; | |
1977 | struct minimal_symbol *mfunsym; | |
1978 | ||
1979 | /* Info on best line seen so far, and where it starts, and its file. */ | |
1980 | ||
1981 | struct linetable_entry *best = NULL; | |
1982 | CORE_ADDR best_end = 0; | |
1983 | struct symtab *best_symtab = 0; | |
1984 | ||
1985 | /* Store here the first line number | |
1986 | of a file which contains the line at the smallest pc after PC. | |
1987 | If we don't find a line whose range contains PC, | |
1988 | we will use a line one less than this, | |
1989 | with a range from the start of that file to the first line's pc. */ | |
1990 | struct linetable_entry *alt = NULL; | |
1991 | struct symtab *alt_symtab = 0; | |
1992 | ||
1993 | /* Info on best line seen in this file. */ | |
1994 | ||
1995 | struct linetable_entry *prev; | |
1996 | ||
1997 | /* If this pc is not from the current frame, | |
1998 | it is the address of the end of a call instruction. | |
1999 | Quite likely that is the start of the following statement. | |
2000 | But what we want is the statement containing the instruction. | |
2001 | Fudge the pc to make sure we get that. */ | |
2002 | ||
fe39c653 | 2003 | init_sal (&val); /* initialize to zeroes */ |
c906108c | 2004 | |
b77b1eb7 JB |
2005 | /* It's tempting to assume that, if we can't find debugging info for |
2006 | any function enclosing PC, that we shouldn't search for line | |
2007 | number info, either. However, GAS can emit line number info for | |
2008 | assembly files --- very helpful when debugging hand-written | |
2009 | assembly code. In such a case, we'd have no debug info for the | |
2010 | function, but we would have line info. */ | |
648f4f79 | 2011 | |
c906108c SS |
2012 | if (notcurrent) |
2013 | pc -= 1; | |
2014 | ||
c5aa993b | 2015 | /* elz: added this because this function returned the wrong |
c906108c SS |
2016 | information if the pc belongs to a stub (import/export) |
2017 | to call a shlib function. This stub would be anywhere between | |
2018 | two functions in the target, and the line info was erroneously | |
2019 | taken to be the one of the line before the pc. | |
c5aa993b | 2020 | */ |
c906108c | 2021 | /* RT: Further explanation: |
c5aa993b | 2022 | |
c906108c SS |
2023 | * We have stubs (trampolines) inserted between procedures. |
2024 | * | |
2025 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
2026 | * exists in the main image. | |
2027 | * | |
2028 | * In the minimal symbol table, we have a bunch of symbols | |
2029 | * sorted by start address. The stubs are marked as "trampoline", | |
2030 | * the others appear as text. E.g.: | |
2031 | * | |
2032 | * Minimal symbol table for main image | |
2033 | * main: code for main (text symbol) | |
2034 | * shr1: stub (trampoline symbol) | |
2035 | * foo: code for foo (text symbol) | |
2036 | * ... | |
2037 | * Minimal symbol table for "shr1" image: | |
2038 | * ... | |
2039 | * shr1: code for shr1 (text symbol) | |
2040 | * ... | |
2041 | * | |
2042 | * So the code below is trying to detect if we are in the stub | |
2043 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
2044 | * and if found, do the symbolization from the real-code address | |
2045 | * rather than the stub address. | |
2046 | * | |
2047 | * Assumptions being made about the minimal symbol table: | |
2048 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
2049 | * if we're really in the trampoline. If we're beyond it (say | |
2050 | * we're in "foo" in the above example), it'll have a closer | |
2051 | * symbol (the "foo" text symbol for example) and will not | |
2052 | * return the trampoline. | |
2053 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
2054 | * corresponding to the trampoline, and whose address will | |
2055 | * be different than the trampoline address. I put in a sanity | |
2056 | * check for the address being the same, to avoid an | |
2057 | * infinite recursion. | |
2058 | */ | |
c5aa993b JM |
2059 | msymbol = lookup_minimal_symbol_by_pc (pc); |
2060 | if (msymbol != NULL) | |
c906108c | 2061 | if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline) |
c5aa993b | 2062 | { |
22abf04a | 2063 | mfunsym = lookup_minimal_symbol_text (DEPRECATED_SYMBOL_NAME (msymbol), NULL, NULL); |
c5aa993b JM |
2064 | if (mfunsym == NULL) |
2065 | /* I eliminated this warning since it is coming out | |
2066 | * in the following situation: | |
2067 | * gdb shmain // test program with shared libraries | |
2068 | * (gdb) break shr1 // function in shared lib | |
2069 | * Warning: In stub for ... | |
2070 | * In the above situation, the shared lib is not loaded yet, | |
2071 | * so of course we can't find the real func/line info, | |
2072 | * but the "break" still works, and the warning is annoying. | |
2073 | * So I commented out the warning. RT */ | |
22abf04a | 2074 | /* warning ("In stub for %s; unable to find real function/line info", DEPRECATED_SYMBOL_NAME (msymbol)) */ ; |
c5aa993b JM |
2075 | /* fall through */ |
2076 | else if (SYMBOL_VALUE (mfunsym) == SYMBOL_VALUE (msymbol)) | |
2077 | /* Avoid infinite recursion */ | |
2078 | /* See above comment about why warning is commented out */ | |
22abf04a | 2079 | /* warning ("In stub for %s; unable to find real function/line info", DEPRECATED_SYMBOL_NAME (msymbol)) */ ; |
c5aa993b JM |
2080 | /* fall through */ |
2081 | else | |
2082 | return find_pc_line (SYMBOL_VALUE (mfunsym), 0); | |
2083 | } | |
c906108c SS |
2084 | |
2085 | ||
2086 | s = find_pc_sect_symtab (pc, section); | |
2087 | if (!s) | |
2088 | { | |
2089 | /* if no symbol information, return previous pc */ | |
2090 | if (notcurrent) | |
2091 | pc++; | |
2092 | val.pc = pc; | |
2093 | return val; | |
2094 | } | |
2095 | ||
2096 | bv = BLOCKVECTOR (s); | |
2097 | ||
2098 | /* Look at all the symtabs that share this blockvector. | |
2099 | They all have the same apriori range, that we found was right; | |
2100 | but they have different line tables. */ | |
2101 | ||
2102 | for (; s && BLOCKVECTOR (s) == bv; s = s->next) | |
2103 | { | |
2104 | /* Find the best line in this symtab. */ | |
2105 | l = LINETABLE (s); | |
2106 | if (!l) | |
c5aa993b | 2107 | continue; |
c906108c SS |
2108 | len = l->nitems; |
2109 | if (len <= 0) | |
2110 | { | |
2111 | /* I think len can be zero if the symtab lacks line numbers | |
2112 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
2113 | I'm not sure which, and maybe it depends on the symbol | |
2114 | reader). */ | |
2115 | continue; | |
2116 | } | |
2117 | ||
2118 | prev = NULL; | |
2119 | item = l->item; /* Get first line info */ | |
2120 | ||
2121 | /* Is this file's first line closer than the first lines of other files? | |
c5aa993b | 2122 | If so, record this file, and its first line, as best alternate. */ |
c906108c SS |
2123 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
2124 | { | |
2125 | alt = item; | |
2126 | alt_symtab = s; | |
2127 | } | |
2128 | ||
2129 | for (i = 0; i < len; i++, item++) | |
2130 | { | |
2131 | /* Leave prev pointing to the linetable entry for the last line | |
2132 | that started at or before PC. */ | |
2133 | if (item->pc > pc) | |
2134 | break; | |
2135 | ||
2136 | prev = item; | |
2137 | } | |
2138 | ||
2139 | /* At this point, prev points at the line whose start addr is <= pc, and | |
c5aa993b JM |
2140 | item points at the next line. If we ran off the end of the linetable |
2141 | (pc >= start of the last line), then prev == item. If pc < start of | |
2142 | the first line, prev will not be set. */ | |
c906108c SS |
2143 | |
2144 | /* Is this file's best line closer than the best in the other files? | |
083ae935 DJ |
2145 | If so, record this file, and its best line, as best so far. Don't |
2146 | save prev if it represents the end of a function (i.e. line number | |
2147 | 0) instead of a real line. */ | |
c906108c | 2148 | |
083ae935 | 2149 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
2150 | { |
2151 | best = prev; | |
2152 | best_symtab = s; | |
25d53da1 KB |
2153 | |
2154 | /* Discard BEST_END if it's before the PC of the current BEST. */ | |
2155 | if (best_end <= best->pc) | |
2156 | best_end = 0; | |
c906108c | 2157 | } |
25d53da1 KB |
2158 | |
2159 | /* If another line (denoted by ITEM) is in the linetable and its | |
2160 | PC is after BEST's PC, but before the current BEST_END, then | |
2161 | use ITEM's PC as the new best_end. */ | |
2162 | if (best && i < len && item->pc > best->pc | |
2163 | && (best_end == 0 || best_end > item->pc)) | |
2164 | best_end = item->pc; | |
c906108c SS |
2165 | } |
2166 | ||
2167 | if (!best_symtab) | |
2168 | { | |
2169 | if (!alt_symtab) | |
2170 | { /* If we didn't find any line # info, just | |
2171 | return zeros. */ | |
2172 | val.pc = pc; | |
2173 | } | |
2174 | else | |
2175 | { | |
2176 | val.symtab = alt_symtab; | |
2177 | val.line = alt->line - 1; | |
2178 | ||
2179 | /* Don't return line 0, that means that we didn't find the line. */ | |
c5aa993b JM |
2180 | if (val.line == 0) |
2181 | ++val.line; | |
c906108c SS |
2182 | |
2183 | val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
2184 | val.end = alt->pc; | |
2185 | } | |
2186 | } | |
e8717518 FF |
2187 | else if (best->line == 0) |
2188 | { | |
2189 | /* If our best fit is in a range of PC's for which no line | |
2190 | number info is available (line number is zero) then we didn't | |
2191 | find any valid line information. */ | |
2192 | val.pc = pc; | |
2193 | } | |
c906108c SS |
2194 | else |
2195 | { | |
2196 | val.symtab = best_symtab; | |
2197 | val.line = best->line; | |
2198 | val.pc = best->pc; | |
2199 | if (best_end && (!alt || best_end < alt->pc)) | |
2200 | val.end = best_end; | |
2201 | else if (alt) | |
2202 | val.end = alt->pc; | |
2203 | else | |
2204 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
2205 | } | |
2206 | val.section = section; | |
2207 | return val; | |
2208 | } | |
2209 | ||
2210 | /* Backward compatibility (no section) */ | |
2211 | ||
2212 | struct symtab_and_line | |
fba45db2 | 2213 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 2214 | { |
c5aa993b | 2215 | asection *section; |
c906108c SS |
2216 | |
2217 | section = find_pc_overlay (pc); | |
2218 | if (pc_in_unmapped_range (pc, section)) | |
2219 | pc = overlay_mapped_address (pc, section); | |
2220 | return find_pc_sect_line (pc, section, notcurrent); | |
2221 | } | |
c906108c | 2222 | \f |
c906108c SS |
2223 | /* Find line number LINE in any symtab whose name is the same as |
2224 | SYMTAB. | |
2225 | ||
2226 | If found, return the symtab that contains the linetable in which it was | |
2227 | found, set *INDEX to the index in the linetable of the best entry | |
2228 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
2229 | exact match. | |
2230 | ||
2231 | If not found, return NULL. */ | |
2232 | ||
50641945 | 2233 | struct symtab * |
fba45db2 | 2234 | find_line_symtab (struct symtab *symtab, int line, int *index, int *exact_match) |
c906108c SS |
2235 | { |
2236 | int exact; | |
2237 | ||
2238 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
2239 | so far seen. */ | |
2240 | ||
2241 | int best_index; | |
2242 | struct linetable *best_linetable; | |
2243 | struct symtab *best_symtab; | |
2244 | ||
2245 | /* First try looking it up in the given symtab. */ | |
2246 | best_linetable = LINETABLE (symtab); | |
2247 | best_symtab = symtab; | |
2248 | best_index = find_line_common (best_linetable, line, &exact); | |
2249 | if (best_index < 0 || !exact) | |
2250 | { | |
2251 | /* Didn't find an exact match. So we better keep looking for | |
c5aa993b JM |
2252 | another symtab with the same name. In the case of xcoff, |
2253 | multiple csects for one source file (produced by IBM's FORTRAN | |
2254 | compiler) produce multiple symtabs (this is unavoidable | |
2255 | assuming csects can be at arbitrary places in memory and that | |
2256 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
2257 | |
2258 | /* BEST is the smallest linenumber > LINE so far seen, | |
c5aa993b JM |
2259 | or 0 if none has been seen so far. |
2260 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
2261 | int best; |
2262 | ||
2263 | struct objfile *objfile; | |
2264 | struct symtab *s; | |
2265 | ||
2266 | if (best_index >= 0) | |
2267 | best = best_linetable->item[best_index].line; | |
2268 | else | |
2269 | best = 0; | |
2270 | ||
2271 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
2272 | { |
2273 | struct linetable *l; | |
2274 | int ind; | |
c906108c | 2275 | |
c5aa993b JM |
2276 | if (!STREQ (symtab->filename, s->filename)) |
2277 | continue; | |
2278 | l = LINETABLE (s); | |
2279 | ind = find_line_common (l, line, &exact); | |
2280 | if (ind >= 0) | |
2281 | { | |
2282 | if (exact) | |
2283 | { | |
2284 | best_index = ind; | |
2285 | best_linetable = l; | |
2286 | best_symtab = s; | |
2287 | goto done; | |
2288 | } | |
2289 | if (best == 0 || l->item[ind].line < best) | |
2290 | { | |
2291 | best = l->item[ind].line; | |
2292 | best_index = ind; | |
2293 | best_linetable = l; | |
2294 | best_symtab = s; | |
2295 | } | |
2296 | } | |
2297 | } | |
c906108c | 2298 | } |
c5aa993b | 2299 | done: |
c906108c SS |
2300 | if (best_index < 0) |
2301 | return NULL; | |
2302 | ||
2303 | if (index) | |
2304 | *index = best_index; | |
2305 | if (exact_match) | |
2306 | *exact_match = exact; | |
2307 | ||
2308 | return best_symtab; | |
2309 | } | |
2310 | \f | |
2311 | /* Set the PC value for a given source file and line number and return true. | |
2312 | Returns zero for invalid line number (and sets the PC to 0). | |
2313 | The source file is specified with a struct symtab. */ | |
2314 | ||
2315 | int | |
fba45db2 | 2316 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
2317 | { |
2318 | struct linetable *l; | |
2319 | int ind; | |
2320 | ||
2321 | *pc = 0; | |
2322 | if (symtab == 0) | |
2323 | return 0; | |
2324 | ||
2325 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
2326 | if (symtab != NULL) | |
2327 | { | |
2328 | l = LINETABLE (symtab); | |
2329 | *pc = l->item[ind].pc; | |
2330 | return 1; | |
2331 | } | |
2332 | else | |
2333 | return 0; | |
2334 | } | |
2335 | ||
2336 | /* Find the range of pc values in a line. | |
2337 | Store the starting pc of the line into *STARTPTR | |
2338 | and the ending pc (start of next line) into *ENDPTR. | |
2339 | Returns 1 to indicate success. | |
2340 | Returns 0 if could not find the specified line. */ | |
2341 | ||
2342 | int | |
fba45db2 KB |
2343 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
2344 | CORE_ADDR *endptr) | |
c906108c SS |
2345 | { |
2346 | CORE_ADDR startaddr; | |
2347 | struct symtab_and_line found_sal; | |
2348 | ||
2349 | startaddr = sal.pc; | |
c5aa993b | 2350 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
c906108c SS |
2351 | return 0; |
2352 | ||
2353 | /* This whole function is based on address. For example, if line 10 has | |
2354 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
2355 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
2356 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
2357 | This also insures that we never give a range like "starts at 0x134 | |
2358 | and ends at 0x12c". */ | |
2359 | ||
2360 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
2361 | if (found_sal.line != sal.line) | |
2362 | { | |
2363 | /* The specified line (sal) has zero bytes. */ | |
2364 | *startptr = found_sal.pc; | |
2365 | *endptr = found_sal.pc; | |
2366 | } | |
2367 | else | |
2368 | { | |
2369 | *startptr = found_sal.pc; | |
2370 | *endptr = found_sal.end; | |
2371 | } | |
2372 | return 1; | |
2373 | } | |
2374 | ||
2375 | /* Given a line table and a line number, return the index into the line | |
2376 | table for the pc of the nearest line whose number is >= the specified one. | |
2377 | Return -1 if none is found. The value is >= 0 if it is an index. | |
2378 | ||
2379 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
2380 | ||
2381 | static int | |
fba45db2 KB |
2382 | find_line_common (register struct linetable *l, register int lineno, |
2383 | int *exact_match) | |
c906108c SS |
2384 | { |
2385 | register int i; | |
2386 | register int len; | |
2387 | ||
2388 | /* BEST is the smallest linenumber > LINENO so far seen, | |
2389 | or 0 if none has been seen so far. | |
2390 | BEST_INDEX identifies the item for it. */ | |
2391 | ||
2392 | int best_index = -1; | |
2393 | int best = 0; | |
2394 | ||
2395 | if (lineno <= 0) | |
2396 | return -1; | |
2397 | if (l == 0) | |
2398 | return -1; | |
2399 | ||
2400 | len = l->nitems; | |
2401 | for (i = 0; i < len; i++) | |
2402 | { | |
2403 | register struct linetable_entry *item = &(l->item[i]); | |
2404 | ||
2405 | if (item->line == lineno) | |
2406 | { | |
2407 | /* Return the first (lowest address) entry which matches. */ | |
2408 | *exact_match = 1; | |
2409 | return i; | |
2410 | } | |
2411 | ||
2412 | if (item->line > lineno && (best == 0 || item->line < best)) | |
2413 | { | |
2414 | best = item->line; | |
2415 | best_index = i; | |
2416 | } | |
2417 | } | |
2418 | ||
2419 | /* If we got here, we didn't get an exact match. */ | |
2420 | ||
2421 | *exact_match = 0; | |
2422 | return best_index; | |
2423 | } | |
2424 | ||
2425 | int | |
fba45db2 | 2426 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
2427 | { |
2428 | struct symtab_and_line sal; | |
2429 | sal = find_pc_line (pc, 0); | |
2430 | *startptr = sal.pc; | |
2431 | *endptr = sal.end; | |
2432 | return sal.symtab != 0; | |
2433 | } | |
2434 | ||
2435 | /* Given a function symbol SYM, find the symtab and line for the start | |
2436 | of the function. | |
2437 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
2438 | of real code inside the function. */ | |
2439 | ||
50641945 | 2440 | struct symtab_and_line |
fba45db2 | 2441 | find_function_start_sal (struct symbol *sym, int funfirstline) |
c906108c SS |
2442 | { |
2443 | CORE_ADDR pc; | |
2444 | struct symtab_and_line sal; | |
2445 | ||
2446 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2447 | fixup_symbol_section (sym, NULL); | |
2448 | if (funfirstline) | |
c5aa993b | 2449 | { /* skip "first line" of function (which is actually its prologue) */ |
c906108c SS |
2450 | asection *section = SYMBOL_BFD_SECTION (sym); |
2451 | /* If function is in an unmapped overlay, use its unmapped LMA | |
c5aa993b | 2452 | address, so that SKIP_PROLOGUE has something unique to work on */ |
c906108c SS |
2453 | if (section_is_overlay (section) && |
2454 | !section_is_mapped (section)) | |
2455 | pc = overlay_unmapped_address (pc, section); | |
2456 | ||
2457 | pc += FUNCTION_START_OFFSET; | |
b83266a0 | 2458 | pc = SKIP_PROLOGUE (pc); |
c906108c SS |
2459 | |
2460 | /* For overlays, map pc back into its mapped VMA range */ | |
2461 | pc = overlay_mapped_address (pc, section); | |
2462 | } | |
2463 | sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0); | |
2464 | ||
2465 | #ifdef PROLOGUE_FIRSTLINE_OVERLAP | |
2466 | /* Convex: no need to suppress code on first line, if any */ | |
2467 | sal.pc = pc; | |
2468 | #else | |
2469 | /* Check if SKIP_PROLOGUE left us in mid-line, and the next | |
2470 | line is still part of the same function. */ | |
2471 | if (sal.pc != pc | |
2472 | && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end | |
2473 | && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
2474 | { | |
2475 | /* First pc of next line */ | |
2476 | pc = sal.end; | |
2477 | /* Recalculate the line number (might not be N+1). */ | |
2478 | sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0); | |
2479 | } | |
2480 | sal.pc = pc; | |
2481 | #endif | |
2482 | ||
2483 | return sal; | |
2484 | } | |
50641945 | 2485 | |
c906108c SS |
2486 | /* If P is of the form "operator[ \t]+..." where `...' is |
2487 | some legitimate operator text, return a pointer to the | |
2488 | beginning of the substring of the operator text. | |
2489 | Otherwise, return "". */ | |
2490 | char * | |
fba45db2 | 2491 | operator_chars (char *p, char **end) |
c906108c SS |
2492 | { |
2493 | *end = ""; | |
2494 | if (strncmp (p, "operator", 8)) | |
2495 | return *end; | |
2496 | p += 8; | |
2497 | ||
2498 | /* Don't get faked out by `operator' being part of a longer | |
2499 | identifier. */ | |
c5aa993b | 2500 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
2501 | return *end; |
2502 | ||
2503 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
2504 | while (*p == ' ' || *p == '\t') | |
2505 | p++; | |
2506 | ||
2507 | /* Recognize 'operator TYPENAME'. */ | |
2508 | ||
c5aa993b | 2509 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 2510 | { |
c5aa993b JM |
2511 | register char *q = p + 1; |
2512 | while (isalnum (*q) || *q == '_' || *q == '$') | |
c906108c SS |
2513 | q++; |
2514 | *end = q; | |
2515 | return p; | |
2516 | } | |
2517 | ||
53e8ad3d MS |
2518 | while (*p) |
2519 | switch (*p) | |
2520 | { | |
2521 | case '\\': /* regexp quoting */ | |
2522 | if (p[1] == '*') | |
2523 | { | |
2524 | if (p[2] == '=') /* 'operator\*=' */ | |
2525 | *end = p + 3; | |
2526 | else /* 'operator\*' */ | |
2527 | *end = p + 2; | |
2528 | return p; | |
2529 | } | |
2530 | else if (p[1] == '[') | |
2531 | { | |
2532 | if (p[2] == ']') | |
2533 | error ("mismatched quoting on brackets, try 'operator\\[\\]'"); | |
2534 | else if (p[2] == '\\' && p[3] == ']') | |
2535 | { | |
2536 | *end = p + 4; /* 'operator\[\]' */ | |
2537 | return p; | |
2538 | } | |
2539 | else | |
2540 | error ("nothing is allowed between '[' and ']'"); | |
2541 | } | |
2542 | else | |
2543 | { | |
2544 | /* Gratuitous qoute: skip it and move on. */ | |
2545 | p++; | |
2546 | continue; | |
2547 | } | |
2548 | break; | |
2549 | case '!': | |
2550 | case '=': | |
2551 | case '*': | |
2552 | case '/': | |
2553 | case '%': | |
2554 | case '^': | |
2555 | if (p[1] == '=') | |
2556 | *end = p + 2; | |
2557 | else | |
2558 | *end = p + 1; | |
2559 | return p; | |
2560 | case '<': | |
2561 | case '>': | |
2562 | case '+': | |
2563 | case '-': | |
2564 | case '&': | |
2565 | case '|': | |
2566 | if (p[0] == '-' && p[1] == '>') | |
2567 | { | |
2568 | /* Struct pointer member operator 'operator->'. */ | |
2569 | if (p[2] == '*') | |
2570 | { | |
2571 | *end = p + 3; /* 'operator->*' */ | |
2572 | return p; | |
2573 | } | |
2574 | else if (p[2] == '\\') | |
2575 | { | |
2576 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
2577 | return p; | |
2578 | } | |
2579 | else | |
2580 | { | |
2581 | *end = p + 2; /* 'operator->' */ | |
2582 | return p; | |
2583 | } | |
2584 | } | |
2585 | if (p[1] == '=' || p[1] == p[0]) | |
2586 | *end = p + 2; | |
2587 | else | |
2588 | *end = p + 1; | |
2589 | return p; | |
2590 | case '~': | |
2591 | case ',': | |
c5aa993b | 2592 | *end = p + 1; |
53e8ad3d MS |
2593 | return p; |
2594 | case '(': | |
2595 | if (p[1] != ')') | |
2596 | error ("`operator ()' must be specified without whitespace in `()'"); | |
c5aa993b | 2597 | *end = p + 2; |
53e8ad3d MS |
2598 | return p; |
2599 | case '?': | |
2600 | if (p[1] != ':') | |
2601 | error ("`operator ?:' must be specified without whitespace in `?:'"); | |
2602 | *end = p + 2; | |
2603 | return p; | |
2604 | case '[': | |
2605 | if (p[1] != ']') | |
2606 | error ("`operator []' must be specified without whitespace in `[]'"); | |
2607 | *end = p + 2; | |
2608 | return p; | |
2609 | default: | |
2610 | error ("`operator %s' not supported", p); | |
2611 | break; | |
2612 | } | |
2613 | ||
c906108c SS |
2614 | *end = ""; |
2615 | return *end; | |
2616 | } | |
c906108c | 2617 | \f |
c5aa993b | 2618 | |
c94fdfd0 EZ |
2619 | /* If FILE is not already in the table of files, return zero; |
2620 | otherwise return non-zero. Optionally add FILE to the table if ADD | |
2621 | is non-zero. If *FIRST is non-zero, forget the old table | |
2622 | contents. */ | |
2623 | static int | |
2624 | filename_seen (const char *file, int add, int *first) | |
c906108c | 2625 | { |
c94fdfd0 EZ |
2626 | /* Table of files seen so far. */ |
2627 | static const char **tab = NULL; | |
c906108c SS |
2628 | /* Allocated size of tab in elements. |
2629 | Start with one 256-byte block (when using GNU malloc.c). | |
2630 | 24 is the malloc overhead when range checking is in effect. */ | |
2631 | static int tab_alloc_size = (256 - 24) / sizeof (char *); | |
2632 | /* Current size of tab in elements. */ | |
2633 | static int tab_cur_size; | |
c94fdfd0 | 2634 | const char **p; |
c906108c SS |
2635 | |
2636 | if (*first) | |
2637 | { | |
2638 | if (tab == NULL) | |
c94fdfd0 | 2639 | tab = (const char **) xmalloc (tab_alloc_size * sizeof (*tab)); |
c906108c SS |
2640 | tab_cur_size = 0; |
2641 | } | |
2642 | ||
c94fdfd0 | 2643 | /* Is FILE in tab? */ |
c906108c | 2644 | for (p = tab; p < tab + tab_cur_size; p++) |
c94fdfd0 EZ |
2645 | if (strcmp (*p, file) == 0) |
2646 | return 1; | |
2647 | ||
2648 | /* No; maybe add it to tab. */ | |
2649 | if (add) | |
c906108c | 2650 | { |
c94fdfd0 EZ |
2651 | if (tab_cur_size == tab_alloc_size) |
2652 | { | |
2653 | tab_alloc_size *= 2; | |
2654 | tab = (const char **) xrealloc ((char *) tab, | |
2655 | tab_alloc_size * sizeof (*tab)); | |
2656 | } | |
2657 | tab[tab_cur_size++] = file; | |
c906108c | 2658 | } |
c906108c | 2659 | |
c94fdfd0 EZ |
2660 | return 0; |
2661 | } | |
2662 | ||
2663 | /* Slave routine for sources_info. Force line breaks at ,'s. | |
2664 | NAME is the name to print and *FIRST is nonzero if this is the first | |
2665 | name printed. Set *FIRST to zero. */ | |
2666 | static void | |
2667 | output_source_filename (char *name, int *first) | |
2668 | { | |
2669 | /* Since a single source file can result in several partial symbol | |
2670 | tables, we need to avoid printing it more than once. Note: if | |
2671 | some of the psymtabs are read in and some are not, it gets | |
2672 | printed both under "Source files for which symbols have been | |
2673 | read" and "Source files for which symbols will be read in on | |
2674 | demand". I consider this a reasonable way to deal with the | |
2675 | situation. I'm not sure whether this can also happen for | |
2676 | symtabs; it doesn't hurt to check. */ | |
2677 | ||
2678 | /* Was NAME already seen? */ | |
2679 | if (filename_seen (name, 1, first)) | |
2680 | { | |
2681 | /* Yes; don't print it again. */ | |
2682 | return; | |
2683 | } | |
2684 | /* No; print it and reset *FIRST. */ | |
c906108c SS |
2685 | if (*first) |
2686 | { | |
2687 | *first = 0; | |
2688 | } | |
2689 | else | |
2690 | { | |
2691 | printf_filtered (", "); | |
2692 | } | |
2693 | ||
2694 | wrap_here (""); | |
2695 | fputs_filtered (name, gdb_stdout); | |
c5aa993b | 2696 | } |
c906108c SS |
2697 | |
2698 | static void | |
fba45db2 | 2699 | sources_info (char *ignore, int from_tty) |
c906108c SS |
2700 | { |
2701 | register struct symtab *s; | |
2702 | register struct partial_symtab *ps; | |
2703 | register struct objfile *objfile; | |
2704 | int first; | |
c5aa993b | 2705 | |
c906108c SS |
2706 | if (!have_full_symbols () && !have_partial_symbols ()) |
2707 | { | |
e85428fc | 2708 | error ("No symbol table is loaded. Use the \"file\" command."); |
c906108c | 2709 | } |
c5aa993b | 2710 | |
c906108c SS |
2711 | printf_filtered ("Source files for which symbols have been read in:\n\n"); |
2712 | ||
2713 | first = 1; | |
2714 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
2715 | { |
2716 | output_source_filename (s->filename, &first); | |
2717 | } | |
c906108c | 2718 | printf_filtered ("\n\n"); |
c5aa993b | 2719 | |
c906108c SS |
2720 | printf_filtered ("Source files for which symbols will be read in on demand:\n\n"); |
2721 | ||
2722 | first = 1; | |
2723 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
2724 | { |
2725 | if (!ps->readin) | |
2726 | { | |
2727 | output_source_filename (ps->filename, &first); | |
2728 | } | |
2729 | } | |
c906108c SS |
2730 | printf_filtered ("\n"); |
2731 | } | |
2732 | ||
2733 | static int | |
fd118b61 | 2734 | file_matches (char *file, char *files[], int nfiles) |
c906108c SS |
2735 | { |
2736 | int i; | |
2737 | ||
2738 | if (file != NULL && nfiles != 0) | |
2739 | { | |
2740 | for (i = 0; i < nfiles; i++) | |
c5aa993b | 2741 | { |
31889e00 | 2742 | if (strcmp (files[i], lbasename (file)) == 0) |
c5aa993b JM |
2743 | return 1; |
2744 | } | |
c906108c SS |
2745 | } |
2746 | else if (nfiles == 0) | |
2747 | return 1; | |
2748 | return 0; | |
2749 | } | |
2750 | ||
2751 | /* Free any memory associated with a search. */ | |
2752 | void | |
fba45db2 | 2753 | free_search_symbols (struct symbol_search *symbols) |
c906108c SS |
2754 | { |
2755 | struct symbol_search *p; | |
2756 | struct symbol_search *next; | |
2757 | ||
2758 | for (p = symbols; p != NULL; p = next) | |
2759 | { | |
2760 | next = p->next; | |
b8c9b27d | 2761 | xfree (p); |
c906108c SS |
2762 | } |
2763 | } | |
2764 | ||
5bd98722 AC |
2765 | static void |
2766 | do_free_search_symbols_cleanup (void *symbols) | |
2767 | { | |
2768 | free_search_symbols (symbols); | |
2769 | } | |
2770 | ||
2771 | struct cleanup * | |
2772 | make_cleanup_free_search_symbols (struct symbol_search *symbols) | |
2773 | { | |
2774 | return make_cleanup (do_free_search_symbols_cleanup, symbols); | |
2775 | } | |
2776 | ||
434d2d4f DJ |
2777 | /* Helper function for sort_search_symbols and qsort. Can only |
2778 | sort symbols, not minimal symbols. */ | |
2779 | static int | |
2780 | compare_search_syms (const void *sa, const void *sb) | |
2781 | { | |
2782 | struct symbol_search **sym_a = (struct symbol_search **) sa; | |
2783 | struct symbol_search **sym_b = (struct symbol_search **) sb; | |
2784 | ||
de5ad195 DC |
2785 | return strcmp (SYMBOL_PRINT_NAME ((*sym_a)->symbol), |
2786 | SYMBOL_PRINT_NAME ((*sym_b)->symbol)); | |
434d2d4f DJ |
2787 | } |
2788 | ||
2789 | /* Sort the ``nfound'' symbols in the list after prevtail. Leave | |
2790 | prevtail where it is, but update its next pointer to point to | |
2791 | the first of the sorted symbols. */ | |
2792 | static struct symbol_search * | |
2793 | sort_search_symbols (struct symbol_search *prevtail, int nfound) | |
2794 | { | |
2795 | struct symbol_search **symbols, *symp, *old_next; | |
2796 | int i; | |
2797 | ||
2798 | symbols = (struct symbol_search **) xmalloc (sizeof (struct symbol_search *) | |
2799 | * nfound); | |
2800 | symp = prevtail->next; | |
2801 | for (i = 0; i < nfound; i++) | |
2802 | { | |
2803 | symbols[i] = symp; | |
2804 | symp = symp->next; | |
2805 | } | |
2806 | /* Generally NULL. */ | |
2807 | old_next = symp; | |
2808 | ||
2809 | qsort (symbols, nfound, sizeof (struct symbol_search *), | |
2810 | compare_search_syms); | |
2811 | ||
2812 | symp = prevtail; | |
2813 | for (i = 0; i < nfound; i++) | |
2814 | { | |
2815 | symp->next = symbols[i]; | |
2816 | symp = symp->next; | |
2817 | } | |
2818 | symp->next = old_next; | |
2819 | ||
8ed32cc0 | 2820 | xfree (symbols); |
434d2d4f DJ |
2821 | return symp; |
2822 | } | |
5bd98722 | 2823 | |
c906108c SS |
2824 | /* Search the symbol table for matches to the regular expression REGEXP, |
2825 | returning the results in *MATCHES. | |
2826 | ||
2827 | Only symbols of KIND are searched: | |
176620f1 EZ |
2828 | FUNCTIONS_DOMAIN - search all functions |
2829 | TYPES_DOMAIN - search all type names | |
2830 | METHODS_DOMAIN - search all methods NOT IMPLEMENTED | |
2831 | VARIABLES_DOMAIN - search all symbols, excluding functions, type names, | |
c5aa993b | 2832 | and constants (enums) |
c906108c SS |
2833 | |
2834 | free_search_symbols should be called when *MATCHES is no longer needed. | |
434d2d4f DJ |
2835 | |
2836 | The results are sorted locally; each symtab's global and static blocks are | |
2837 | separately alphabetized. | |
c5aa993b | 2838 | */ |
c906108c | 2839 | void |
176620f1 | 2840 | search_symbols (char *regexp, domain_enum kind, int nfiles, char *files[], |
fd118b61 | 2841 | struct symbol_search **matches) |
c906108c SS |
2842 | { |
2843 | register struct symtab *s; | |
2844 | register struct partial_symtab *ps; | |
2845 | register struct blockvector *bv; | |
2846 | struct blockvector *prev_bv = 0; | |
2847 | register struct block *b; | |
2848 | register int i = 0; | |
2849 | register int j; | |
2850 | register struct symbol *sym; | |
2851 | struct partial_symbol **psym; | |
2852 | struct objfile *objfile; | |
2853 | struct minimal_symbol *msymbol; | |
2854 | char *val; | |
2855 | int found_misc = 0; | |
2856 | static enum minimal_symbol_type types[] | |
c5aa993b JM |
2857 | = |
2858 | {mst_data, mst_text, mst_abs, mst_unknown}; | |
c906108c | 2859 | static enum minimal_symbol_type types2[] |
c5aa993b JM |
2860 | = |
2861 | {mst_bss, mst_file_text, mst_abs, mst_unknown}; | |
c906108c | 2862 | static enum minimal_symbol_type types3[] |
c5aa993b JM |
2863 | = |
2864 | {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown}; | |
c906108c | 2865 | static enum minimal_symbol_type types4[] |
c5aa993b JM |
2866 | = |
2867 | {mst_file_bss, mst_text, mst_abs, mst_unknown}; | |
c906108c SS |
2868 | enum minimal_symbol_type ourtype; |
2869 | enum minimal_symbol_type ourtype2; | |
2870 | enum minimal_symbol_type ourtype3; | |
2871 | enum minimal_symbol_type ourtype4; | |
2872 | struct symbol_search *sr; | |
2873 | struct symbol_search *psr; | |
2874 | struct symbol_search *tail; | |
2875 | struct cleanup *old_chain = NULL; | |
2876 | ||
176620f1 EZ |
2877 | if (kind < VARIABLES_DOMAIN) |
2878 | error ("must search on specific domain"); | |
c906108c | 2879 | |
176620f1 EZ |
2880 | ourtype = types[(int) (kind - VARIABLES_DOMAIN)]; |
2881 | ourtype2 = types2[(int) (kind - VARIABLES_DOMAIN)]; | |
2882 | ourtype3 = types3[(int) (kind - VARIABLES_DOMAIN)]; | |
2883 | ourtype4 = types4[(int) (kind - VARIABLES_DOMAIN)]; | |
c906108c SS |
2884 | |
2885 | sr = *matches = NULL; | |
2886 | tail = NULL; | |
2887 | ||
2888 | if (regexp != NULL) | |
2889 | { | |
2890 | /* Make sure spacing is right for C++ operators. | |
2891 | This is just a courtesy to make the matching less sensitive | |
2892 | to how many spaces the user leaves between 'operator' | |
2893 | and <TYPENAME> or <OPERATOR>. */ | |
2894 | char *opend; | |
2895 | char *opname = operator_chars (regexp, &opend); | |
2896 | if (*opname) | |
c5aa993b JM |
2897 | { |
2898 | int fix = -1; /* -1 means ok; otherwise number of spaces needed. */ | |
2899 | if (isalpha (*opname) || *opname == '_' || *opname == '$') | |
2900 | { | |
2901 | /* There should 1 space between 'operator' and 'TYPENAME'. */ | |
2902 | if (opname[-1] != ' ' || opname[-2] == ' ') | |
2903 | fix = 1; | |
2904 | } | |
2905 | else | |
2906 | { | |
2907 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ | |
2908 | if (opname[-1] == ' ') | |
2909 | fix = 0; | |
2910 | } | |
2911 | /* If wrong number of spaces, fix it. */ | |
2912 | if (fix >= 0) | |
2913 | { | |
045f55a6 | 2914 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
c5aa993b JM |
2915 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
2916 | regexp = tmp; | |
2917 | } | |
2918 | } | |
2919 | ||
c906108c | 2920 | if (0 != (val = re_comp (regexp))) |
c5aa993b | 2921 | error ("Invalid regexp (%s): %s", val, regexp); |
c906108c SS |
2922 | } |
2923 | ||
2924 | /* Search through the partial symtabs *first* for all symbols | |
2925 | matching the regexp. That way we don't have to reproduce all of | |
2926 | the machinery below. */ | |
2927 | ||
2928 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
2929 | { |
2930 | struct partial_symbol **bound, **gbound, **sbound; | |
2931 | int keep_going = 1; | |
2932 | ||
2933 | if (ps->readin) | |
2934 | continue; | |
2935 | ||
2936 | gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms; | |
2937 | sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms; | |
2938 | bound = gbound; | |
2939 | ||
2940 | /* Go through all of the symbols stored in a partial | |
2941 | symtab in one loop. */ | |
2942 | psym = objfile->global_psymbols.list + ps->globals_offset; | |
2943 | while (keep_going) | |
2944 | { | |
2945 | if (psym >= bound) | |
2946 | { | |
2947 | if (bound == gbound && ps->n_static_syms != 0) | |
2948 | { | |
2949 | psym = objfile->static_psymbols.list + ps->statics_offset; | |
2950 | bound = sbound; | |
2951 | } | |
2952 | else | |
2953 | keep_going = 0; | |
2954 | continue; | |
2955 | } | |
2956 | else | |
2957 | { | |
2958 | QUIT; | |
2959 | ||
2960 | /* If it would match (logic taken from loop below) | |
2961 | load the file and go on to the next one */ | |
2962 | if (file_matches (ps->filename, files, nfiles) | |
25120b0d DC |
2963 | && ((regexp == NULL |
2964 | || re_exec (SYMBOL_NATURAL_NAME (*psym)) != 0) | |
176620f1 | 2965 | && ((kind == VARIABLES_DOMAIN && SYMBOL_CLASS (*psym) != LOC_TYPEDEF |
c5aa993b | 2966 | && SYMBOL_CLASS (*psym) != LOC_BLOCK) |
176620f1 EZ |
2967 | || (kind == FUNCTIONS_DOMAIN && SYMBOL_CLASS (*psym) == LOC_BLOCK) |
2968 | || (kind == TYPES_DOMAIN && SYMBOL_CLASS (*psym) == LOC_TYPEDEF) | |
2969 | || (kind == METHODS_DOMAIN && SYMBOL_CLASS (*psym) == LOC_BLOCK)))) | |
c5aa993b JM |
2970 | { |
2971 | PSYMTAB_TO_SYMTAB (ps); | |
2972 | keep_going = 0; | |
2973 | } | |
2974 | } | |
2975 | psym++; | |
2976 | } | |
2977 | } | |
c906108c SS |
2978 | |
2979 | /* Here, we search through the minimal symbol tables for functions | |
2980 | and variables that match, and force their symbols to be read. | |
2981 | This is in particular necessary for demangled variable names, | |
2982 | which are no longer put into the partial symbol tables. | |
2983 | The symbol will then be found during the scan of symtabs below. | |
2984 | ||
2985 | For functions, find_pc_symtab should succeed if we have debug info | |
2986 | for the function, for variables we have to call lookup_symbol | |
2987 | to determine if the variable has debug info. | |
2988 | If the lookup fails, set found_misc so that we will rescan to print | |
2989 | any matching symbols without debug info. | |
c5aa993b | 2990 | */ |
c906108c | 2991 | |
176620f1 | 2992 | if (nfiles == 0 && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) |
c906108c SS |
2993 | { |
2994 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
2995 | { |
2996 | if (MSYMBOL_TYPE (msymbol) == ourtype || | |
2997 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
2998 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
2999 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
3000 | { | |
25120b0d DC |
3001 | if (regexp == NULL |
3002 | || re_exec (SYMBOL_NATURAL_NAME (msymbol)) != 0) | |
c5aa993b JM |
3003 | { |
3004 | if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))) | |
3005 | { | |
b1262a02 DC |
3006 | /* FIXME: carlton/2003-02-04: Given that the |
3007 | semantics of lookup_symbol keeps on changing | |
3008 | slightly, it would be a nice idea if we had a | |
3009 | function lookup_symbol_minsym that found the | |
3010 | symbol associated to a given minimal symbol (if | |
3011 | any). */ | |
176620f1 | 3012 | if (kind == FUNCTIONS_DOMAIN |
22abf04a | 3013 | || lookup_symbol (DEPRECATED_SYMBOL_NAME (msymbol), |
b1262a02 | 3014 | (struct block *) NULL, |
176620f1 | 3015 | VAR_DOMAIN, |
b1262a02 DC |
3016 | 0, (struct symtab **) NULL) == NULL) |
3017 | found_misc = 1; | |
c5aa993b JM |
3018 | } |
3019 | } | |
3020 | } | |
3021 | } | |
c906108c SS |
3022 | } |
3023 | ||
3024 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
3025 | { |
3026 | bv = BLOCKVECTOR (s); | |
3027 | /* Often many files share a blockvector. | |
3028 | Scan each blockvector only once so that | |
3029 | we don't get every symbol many times. | |
3030 | It happens that the first symtab in the list | |
3031 | for any given blockvector is the main file. */ | |
3032 | if (bv != prev_bv) | |
3033 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) | |
3034 | { | |
434d2d4f DJ |
3035 | struct symbol_search *prevtail = tail; |
3036 | int nfound = 0; | |
c5aa993b | 3037 | b = BLOCKVECTOR_BLOCK (bv, i); |
261397f8 | 3038 | ALL_BLOCK_SYMBOLS (b, j, sym) |
c5aa993b JM |
3039 | { |
3040 | QUIT; | |
c5aa993b | 3041 | if (file_matches (s->filename, files, nfiles) |
25120b0d DC |
3042 | && ((regexp == NULL |
3043 | || re_exec (SYMBOL_NATURAL_NAME (sym)) != 0) | |
176620f1 | 3044 | && ((kind == VARIABLES_DOMAIN && SYMBOL_CLASS (sym) != LOC_TYPEDEF |
c5aa993b JM |
3045 | && SYMBOL_CLASS (sym) != LOC_BLOCK |
3046 | && SYMBOL_CLASS (sym) != LOC_CONST) | |
176620f1 EZ |
3047 | || (kind == FUNCTIONS_DOMAIN && SYMBOL_CLASS (sym) == LOC_BLOCK) |
3048 | || (kind == TYPES_DOMAIN && SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
3049 | || (kind == METHODS_DOMAIN && SYMBOL_CLASS (sym) == LOC_BLOCK)))) | |
c5aa993b JM |
3050 | { |
3051 | /* match */ | |
3052 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
3053 | psr->block = i; | |
3054 | psr->symtab = s; | |
3055 | psr->symbol = sym; | |
3056 | psr->msymbol = NULL; | |
3057 | psr->next = NULL; | |
3058 | if (tail == NULL) | |
434d2d4f | 3059 | sr = psr; |
c5aa993b JM |
3060 | else |
3061 | tail->next = psr; | |
3062 | tail = psr; | |
434d2d4f DJ |
3063 | nfound ++; |
3064 | } | |
3065 | } | |
3066 | if (nfound > 0) | |
3067 | { | |
3068 | if (prevtail == NULL) | |
3069 | { | |
3070 | struct symbol_search dummy; | |
3071 | ||
3072 | dummy.next = sr; | |
3073 | tail = sort_search_symbols (&dummy, nfound); | |
3074 | sr = dummy.next; | |
3075 | ||
3076 | old_chain = make_cleanup_free_search_symbols (sr); | |
c5aa993b | 3077 | } |
434d2d4f DJ |
3078 | else |
3079 | tail = sort_search_symbols (prevtail, nfound); | |
c5aa993b JM |
3080 | } |
3081 | } | |
3082 | prev_bv = bv; | |
3083 | } | |
c906108c SS |
3084 | |
3085 | /* If there are no eyes, avoid all contact. I mean, if there are | |
3086 | no debug symbols, then print directly from the msymbol_vector. */ | |
3087 | ||
176620f1 | 3088 | if (found_misc || kind != FUNCTIONS_DOMAIN) |
c906108c SS |
3089 | { |
3090 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
3091 | { |
3092 | if (MSYMBOL_TYPE (msymbol) == ourtype || | |
3093 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
3094 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
3095 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
3096 | { | |
25120b0d DC |
3097 | if (regexp == NULL |
3098 | || re_exec (SYMBOL_NATURAL_NAME (msymbol)) != 0) | |
c5aa993b JM |
3099 | { |
3100 | /* Functions: Look up by address. */ | |
176620f1 | 3101 | if (kind != FUNCTIONS_DOMAIN || |
c5aa993b JM |
3102 | (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))) |
3103 | { | |
3104 | /* Variables/Absolutes: Look up by name */ | |
22abf04a | 3105 | if (lookup_symbol (DEPRECATED_SYMBOL_NAME (msymbol), |
176620f1 | 3106 | (struct block *) NULL, VAR_DOMAIN, |
c5aa993b JM |
3107 | 0, (struct symtab **) NULL) == NULL) |
3108 | { | |
3109 | /* match */ | |
3110 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
3111 | psr->block = i; | |
3112 | psr->msymbol = msymbol; | |
3113 | psr->symtab = NULL; | |
3114 | psr->symbol = NULL; | |
3115 | psr->next = NULL; | |
3116 | if (tail == NULL) | |
3117 | { | |
3118 | sr = psr; | |
5bd98722 | 3119 | old_chain = make_cleanup_free_search_symbols (sr); |
c5aa993b JM |
3120 | } |
3121 | else | |
3122 | tail->next = psr; | |
3123 | tail = psr; | |
3124 | } | |
3125 | } | |
3126 | } | |
3127 | } | |
3128 | } | |
c906108c SS |
3129 | } |
3130 | ||
3131 | *matches = sr; | |
3132 | if (sr != NULL) | |
3133 | discard_cleanups (old_chain); | |
3134 | } | |
3135 | ||
3136 | /* Helper function for symtab_symbol_info, this function uses | |
3137 | the data returned from search_symbols() to print information | |
3138 | regarding the match to gdb_stdout. | |
c5aa993b | 3139 | */ |
c906108c | 3140 | static void |
176620f1 | 3141 | print_symbol_info (domain_enum kind, struct symtab *s, struct symbol *sym, |
fba45db2 | 3142 | int block, char *last) |
c906108c SS |
3143 | { |
3144 | if (last == NULL || strcmp (last, s->filename) != 0) | |
3145 | { | |
3146 | fputs_filtered ("\nFile ", gdb_stdout); | |
3147 | fputs_filtered (s->filename, gdb_stdout); | |
3148 | fputs_filtered (":\n", gdb_stdout); | |
3149 | } | |
3150 | ||
176620f1 | 3151 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
c906108c | 3152 | printf_filtered ("static "); |
c5aa993b | 3153 | |
c906108c | 3154 | /* Typedef that is not a C++ class */ |
176620f1 EZ |
3155 | if (kind == TYPES_DOMAIN |
3156 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
a5238fbc | 3157 | typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout); |
c906108c | 3158 | /* variable, func, or typedef-that-is-c++-class */ |
176620f1 EZ |
3159 | else if (kind < TYPES_DOMAIN || |
3160 | (kind == TYPES_DOMAIN && | |
3161 | SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c SS |
3162 | { |
3163 | type_print (SYMBOL_TYPE (sym), | |
c5aa993b | 3164 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
de5ad195 | 3165 | ? "" : SYMBOL_PRINT_NAME (sym)), |
c5aa993b | 3166 | gdb_stdout, 0); |
c906108c SS |
3167 | |
3168 | printf_filtered (";\n"); | |
3169 | } | |
c906108c SS |
3170 | } |
3171 | ||
3172 | /* This help function for symtab_symbol_info() prints information | |
3173 | for non-debugging symbols to gdb_stdout. | |
c5aa993b | 3174 | */ |
c906108c | 3175 | static void |
fba45db2 | 3176 | print_msymbol_info (struct minimal_symbol *msymbol) |
c906108c | 3177 | { |
3ac4495a MS |
3178 | char *tmp; |
3179 | ||
3180 | if (TARGET_ADDR_BIT <= 32) | |
14a5e767 AC |
3181 | tmp = local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol) |
3182 | & (CORE_ADDR) 0xffffffff, | |
3183 | "08l"); | |
3ac4495a | 3184 | else |
14a5e767 AC |
3185 | tmp = local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol), |
3186 | "016l"); | |
3ac4495a | 3187 | printf_filtered ("%s %s\n", |
de5ad195 | 3188 | tmp, SYMBOL_PRINT_NAME (msymbol)); |
c906108c SS |
3189 | } |
3190 | ||
3191 | /* This is the guts of the commands "info functions", "info types", and | |
3192 | "info variables". It calls search_symbols to find all matches and then | |
3193 | print_[m]symbol_info to print out some useful information about the | |
3194 | matches. | |
c5aa993b | 3195 | */ |
c906108c | 3196 | static void |
176620f1 | 3197 | symtab_symbol_info (char *regexp, domain_enum kind, int from_tty) |
c906108c SS |
3198 | { |
3199 | static char *classnames[] | |
c5aa993b JM |
3200 | = |
3201 | {"variable", "function", "type", "method"}; | |
c906108c SS |
3202 | struct symbol_search *symbols; |
3203 | struct symbol_search *p; | |
3204 | struct cleanup *old_chain; | |
3205 | char *last_filename = NULL; | |
3206 | int first = 1; | |
3207 | ||
3208 | /* must make sure that if we're interrupted, symbols gets freed */ | |
3209 | search_symbols (regexp, kind, 0, (char **) NULL, &symbols); | |
5bd98722 | 3210 | old_chain = make_cleanup_free_search_symbols (symbols); |
c906108c SS |
3211 | |
3212 | printf_filtered (regexp | |
c5aa993b JM |
3213 | ? "All %ss matching regular expression \"%s\":\n" |
3214 | : "All defined %ss:\n", | |
176620f1 | 3215 | classnames[(int) (kind - VARIABLES_DOMAIN)], regexp); |
c906108c SS |
3216 | |
3217 | for (p = symbols; p != NULL; p = p->next) | |
3218 | { | |
3219 | QUIT; | |
3220 | ||
3221 | if (p->msymbol != NULL) | |
c5aa993b JM |
3222 | { |
3223 | if (first) | |
3224 | { | |
3225 | printf_filtered ("\nNon-debugging symbols:\n"); | |
3226 | first = 0; | |
3227 | } | |
3228 | print_msymbol_info (p->msymbol); | |
3229 | } | |
c906108c | 3230 | else |
c5aa993b JM |
3231 | { |
3232 | print_symbol_info (kind, | |
3233 | p->symtab, | |
3234 | p->symbol, | |
3235 | p->block, | |
3236 | last_filename); | |
3237 | last_filename = p->symtab->filename; | |
3238 | } | |
c906108c SS |
3239 | } |
3240 | ||
3241 | do_cleanups (old_chain); | |
3242 | } | |
3243 | ||
3244 | static void | |
fba45db2 | 3245 | variables_info (char *regexp, int from_tty) |
c906108c | 3246 | { |
176620f1 | 3247 | symtab_symbol_info (regexp, VARIABLES_DOMAIN, from_tty); |
c906108c SS |
3248 | } |
3249 | ||
3250 | static void | |
fba45db2 | 3251 | functions_info (char *regexp, int from_tty) |
c906108c | 3252 | { |
176620f1 | 3253 | symtab_symbol_info (regexp, FUNCTIONS_DOMAIN, from_tty); |
c906108c SS |
3254 | } |
3255 | ||
357e46e7 | 3256 | |
c906108c | 3257 | static void |
fba45db2 | 3258 | types_info (char *regexp, int from_tty) |
c906108c | 3259 | { |
176620f1 | 3260 | symtab_symbol_info (regexp, TYPES_DOMAIN, from_tty); |
c906108c SS |
3261 | } |
3262 | ||
c906108c | 3263 | /* Breakpoint all functions matching regular expression. */ |
8926118c | 3264 | |
8b93c638 | 3265 | void |
fba45db2 | 3266 | rbreak_command_wrapper (char *regexp, int from_tty) |
8b93c638 JM |
3267 | { |
3268 | rbreak_command (regexp, from_tty); | |
3269 | } | |
8926118c | 3270 | |
c906108c | 3271 | static void |
fba45db2 | 3272 | rbreak_command (char *regexp, int from_tty) |
c906108c SS |
3273 | { |
3274 | struct symbol_search *ss; | |
3275 | struct symbol_search *p; | |
3276 | struct cleanup *old_chain; | |
3277 | ||
176620f1 | 3278 | search_symbols (regexp, FUNCTIONS_DOMAIN, 0, (char **) NULL, &ss); |
5bd98722 | 3279 | old_chain = make_cleanup_free_search_symbols (ss); |
c906108c SS |
3280 | |
3281 | for (p = ss; p != NULL; p = p->next) | |
3282 | { | |
3283 | if (p->msymbol == NULL) | |
c5aa993b JM |
3284 | { |
3285 | char *string = (char *) alloca (strlen (p->symtab->filename) | |
22abf04a | 3286 | + strlen (DEPRECATED_SYMBOL_NAME (p->symbol)) |
c5aa993b JM |
3287 | + 4); |
3288 | strcpy (string, p->symtab->filename); | |
3289 | strcat (string, ":'"); | |
22abf04a | 3290 | strcat (string, DEPRECATED_SYMBOL_NAME (p->symbol)); |
c5aa993b JM |
3291 | strcat (string, "'"); |
3292 | break_command (string, from_tty); | |
176620f1 | 3293 | print_symbol_info (FUNCTIONS_DOMAIN, |
c5aa993b JM |
3294 | p->symtab, |
3295 | p->symbol, | |
3296 | p->block, | |
3297 | p->symtab->filename); | |
3298 | } | |
c906108c | 3299 | else |
c5aa993b | 3300 | { |
22abf04a | 3301 | break_command (DEPRECATED_SYMBOL_NAME (p->msymbol), from_tty); |
c5aa993b | 3302 | printf_filtered ("<function, no debug info> %s;\n", |
de5ad195 | 3303 | SYMBOL_PRINT_NAME (p->msymbol)); |
c5aa993b | 3304 | } |
c906108c SS |
3305 | } |
3306 | ||
3307 | do_cleanups (old_chain); | |
3308 | } | |
c906108c | 3309 | \f |
c5aa993b | 3310 | |
c906108c SS |
3311 | /* Helper routine for make_symbol_completion_list. */ |
3312 | ||
3313 | static int return_val_size; | |
3314 | static int return_val_index; | |
3315 | static char **return_val; | |
3316 | ||
3317 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ | |
3318 | do { \ | |
3319 | if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \ | |
3320 | /* Put only the mangled name on the list. */ \ | |
3321 | /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \ | |
3322 | /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \ | |
3323 | completion_list_add_name \ | |
3324 | (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \ | |
3325 | else \ | |
3326 | completion_list_add_name \ | |
22abf04a | 3327 | (DEPRECATED_SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \ |
c906108c SS |
3328 | } while (0) |
3329 | ||
3330 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b JM |
3331 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
3332 | characters. If so, add it to the current completion list. */ | |
c906108c SS |
3333 | |
3334 | static void | |
fba45db2 KB |
3335 | completion_list_add_name (char *symname, char *sym_text, int sym_text_len, |
3336 | char *text, char *word) | |
c906108c SS |
3337 | { |
3338 | int newsize; | |
3339 | int i; | |
3340 | ||
3341 | /* clip symbols that cannot match */ | |
3342 | ||
3343 | if (strncmp (symname, sym_text, sym_text_len) != 0) | |
3344 | { | |
3345 | return; | |
3346 | } | |
3347 | ||
c906108c SS |
3348 | /* We have a match for a completion, so add SYMNAME to the current list |
3349 | of matches. Note that the name is moved to freshly malloc'd space. */ | |
3350 | ||
3351 | { | |
3352 | char *new; | |
3353 | if (word == sym_text) | |
3354 | { | |
3355 | new = xmalloc (strlen (symname) + 5); | |
3356 | strcpy (new, symname); | |
3357 | } | |
3358 | else if (word > sym_text) | |
3359 | { | |
3360 | /* Return some portion of symname. */ | |
3361 | new = xmalloc (strlen (symname) + 5); | |
3362 | strcpy (new, symname + (word - sym_text)); | |
3363 | } | |
3364 | else | |
3365 | { | |
3366 | /* Return some of SYM_TEXT plus symname. */ | |
3367 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
3368 | strncpy (new, word, sym_text - word); | |
3369 | new[sym_text - word] = '\0'; | |
3370 | strcat (new, symname); | |
3371 | } | |
3372 | ||
c906108c SS |
3373 | if (return_val_index + 3 > return_val_size) |
3374 | { | |
3375 | newsize = (return_val_size *= 2) * sizeof (char *); | |
3376 | return_val = (char **) xrealloc ((char *) return_val, newsize); | |
3377 | } | |
3378 | return_val[return_val_index++] = new; | |
3379 | return_val[return_val_index] = NULL; | |
3380 | } | |
3381 | } | |
3382 | ||
c94fdfd0 EZ |
3383 | /* Return a NULL terminated array of all symbols (regardless of class) |
3384 | which begin by matching TEXT. If the answer is no symbols, then | |
3385 | the return value is an array which contains only a NULL pointer. | |
c906108c SS |
3386 | |
3387 | Problem: All of the symbols have to be copied because readline frees them. | |
3388 | I'm not going to worry about this; hopefully there won't be that many. */ | |
3389 | ||
3390 | char ** | |
fba45db2 | 3391 | make_symbol_completion_list (char *text, char *word) |
c906108c SS |
3392 | { |
3393 | register struct symbol *sym; | |
3394 | register struct symtab *s; | |
3395 | register struct partial_symtab *ps; | |
3396 | register struct minimal_symbol *msymbol; | |
3397 | register struct objfile *objfile; | |
3398 | register struct block *b, *surrounding_static_block = 0; | |
3399 | register int i, j; | |
3400 | struct partial_symbol **psym; | |
3401 | /* The symbol we are completing on. Points in same buffer as text. */ | |
3402 | char *sym_text; | |
3403 | /* Length of sym_text. */ | |
3404 | int sym_text_len; | |
3405 | ||
3406 | /* Now look for the symbol we are supposed to complete on. | |
3407 | FIXME: This should be language-specific. */ | |
3408 | { | |
3409 | char *p; | |
3410 | char quote_found; | |
3411 | char *quote_pos = NULL; | |
3412 | ||
3413 | /* First see if this is a quoted string. */ | |
3414 | quote_found = '\0'; | |
3415 | for (p = text; *p != '\0'; ++p) | |
3416 | { | |
3417 | if (quote_found != '\0') | |
3418 | { | |
3419 | if (*p == quote_found) | |
3420 | /* Found close quote. */ | |
3421 | quote_found = '\0'; | |
3422 | else if (*p == '\\' && p[1] == quote_found) | |
3423 | /* A backslash followed by the quote character | |
c5aa993b | 3424 | doesn't end the string. */ |
c906108c SS |
3425 | ++p; |
3426 | } | |
3427 | else if (*p == '\'' || *p == '"') | |
3428 | { | |
3429 | quote_found = *p; | |
3430 | quote_pos = p; | |
3431 | } | |
3432 | } | |
3433 | if (quote_found == '\'') | |
3434 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3435 | sym_text = quote_pos + 1; | |
3436 | else if (quote_found == '"') | |
3437 | /* A double-quoted string is never a symbol, nor does it make sense | |
c5aa993b | 3438 | to complete it any other way. */ |
c94fdfd0 EZ |
3439 | { |
3440 | return_val = (char **) xmalloc (sizeof (char *)); | |
3441 | return_val[0] = NULL; | |
3442 | return return_val; | |
3443 | } | |
c906108c SS |
3444 | else |
3445 | { | |
3446 | /* It is not a quoted string. Break it based on the characters | |
3447 | which are in symbols. */ | |
3448 | while (p > text) | |
3449 | { | |
3450 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
3451 | --p; | |
3452 | else | |
3453 | break; | |
3454 | } | |
3455 | sym_text = p; | |
3456 | } | |
3457 | } | |
3458 | ||
3459 | sym_text_len = strlen (sym_text); | |
3460 | ||
3461 | return_val_size = 100; | |
3462 | return_val_index = 0; | |
3463 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
3464 | return_val[0] = NULL; | |
3465 | ||
3466 | /* Look through the partial symtabs for all symbols which begin | |
3467 | by matching SYM_TEXT. Add each one that you find to the list. */ | |
3468 | ||
3469 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
3470 | { |
3471 | /* If the psymtab's been read in we'll get it when we search | |
3472 | through the blockvector. */ | |
3473 | if (ps->readin) | |
3474 | continue; | |
3475 | ||
3476 | for (psym = objfile->global_psymbols.list + ps->globals_offset; | |
3477 | psym < (objfile->global_psymbols.list + ps->globals_offset | |
3478 | + ps->n_global_syms); | |
3479 | psym++) | |
3480 | { | |
3481 | /* If interrupted, then quit. */ | |
3482 | QUIT; | |
3483 | COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word); | |
3484 | } | |
3485 | ||
3486 | for (psym = objfile->static_psymbols.list + ps->statics_offset; | |
3487 | psym < (objfile->static_psymbols.list + ps->statics_offset | |
3488 | + ps->n_static_syms); | |
3489 | psym++) | |
3490 | { | |
3491 | QUIT; | |
3492 | COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word); | |
3493 | } | |
3494 | } | |
c906108c SS |
3495 | |
3496 | /* At this point scan through the misc symbol vectors and add each | |
3497 | symbol you find to the list. Eventually we want to ignore | |
3498 | anything that isn't a text symbol (everything else will be | |
3499 | handled by the psymtab code above). */ | |
3500 | ||
3501 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
3502 | { |
3503 | QUIT; | |
3504 | COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word); | |
3505 | } | |
c906108c SS |
3506 | |
3507 | /* Search upwards from currently selected frame (so that we can | |
3508 | complete on local vars. */ | |
3509 | ||
ae767bfb | 3510 | for (b = get_selected_block (0); b != NULL; b = BLOCK_SUPERBLOCK (b)) |
c906108c SS |
3511 | { |
3512 | if (!BLOCK_SUPERBLOCK (b)) | |
3513 | { | |
c5aa993b | 3514 | surrounding_static_block = b; /* For elmin of dups */ |
c906108c | 3515 | } |
c5aa993b | 3516 | |
c906108c | 3517 | /* Also catch fields of types defined in this places which match our |
c5aa993b | 3518 | text string. Only complete on types visible from current context. */ |
c906108c | 3519 | |
e88c90f2 | 3520 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c906108c | 3521 | { |
c906108c SS |
3522 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3523 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
3524 | { | |
3525 | struct type *t = SYMBOL_TYPE (sym); | |
3526 | enum type_code c = TYPE_CODE (t); | |
3527 | ||
3528 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
3529 | { | |
3530 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
3531 | { | |
3532 | if (TYPE_FIELD_NAME (t, j)) | |
3533 | { | |
3534 | completion_list_add_name (TYPE_FIELD_NAME (t, j), | |
c5aa993b | 3535 | sym_text, sym_text_len, text, word); |
c906108c SS |
3536 | } |
3537 | } | |
3538 | } | |
3539 | } | |
3540 | } | |
3541 | } | |
3542 | ||
3543 | /* Go through the symtabs and check the externs and statics for | |
3544 | symbols which match. */ | |
3545 | ||
3546 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
3547 | { |
3548 | QUIT; | |
3549 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
e88c90f2 | 3550 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 3551 | { |
c5aa993b JM |
3552 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3553 | } | |
3554 | } | |
c906108c SS |
3555 | |
3556 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
3557 | { |
3558 | QUIT; | |
3559 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
3560 | /* Don't do this block twice. */ | |
3561 | if (b == surrounding_static_block) | |
3562 | continue; | |
e88c90f2 | 3563 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 3564 | { |
c5aa993b JM |
3565 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3566 | } | |
3567 | } | |
c906108c SS |
3568 | |
3569 | return (return_val); | |
3570 | } | |
3571 | ||
c94fdfd0 EZ |
3572 | /* Like make_symbol_completion_list, but returns a list of symbols |
3573 | defined in a source file FILE. */ | |
3574 | ||
3575 | char ** | |
3576 | make_file_symbol_completion_list (char *text, char *word, char *srcfile) | |
3577 | { | |
3578 | register struct symbol *sym; | |
3579 | register struct symtab *s; | |
3580 | register struct block *b; | |
3581 | register int i; | |
3582 | /* The symbol we are completing on. Points in same buffer as text. */ | |
3583 | char *sym_text; | |
3584 | /* Length of sym_text. */ | |
3585 | int sym_text_len; | |
3586 | ||
3587 | /* Now look for the symbol we are supposed to complete on. | |
3588 | FIXME: This should be language-specific. */ | |
3589 | { | |
3590 | char *p; | |
3591 | char quote_found; | |
3592 | char *quote_pos = NULL; | |
3593 | ||
3594 | /* First see if this is a quoted string. */ | |
3595 | quote_found = '\0'; | |
3596 | for (p = text; *p != '\0'; ++p) | |
3597 | { | |
3598 | if (quote_found != '\0') | |
3599 | { | |
3600 | if (*p == quote_found) | |
3601 | /* Found close quote. */ | |
3602 | quote_found = '\0'; | |
3603 | else if (*p == '\\' && p[1] == quote_found) | |
3604 | /* A backslash followed by the quote character | |
3605 | doesn't end the string. */ | |
3606 | ++p; | |
3607 | } | |
3608 | else if (*p == '\'' || *p == '"') | |
3609 | { | |
3610 | quote_found = *p; | |
3611 | quote_pos = p; | |
3612 | } | |
3613 | } | |
3614 | if (quote_found == '\'') | |
3615 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3616 | sym_text = quote_pos + 1; | |
3617 | else if (quote_found == '"') | |
3618 | /* A double-quoted string is never a symbol, nor does it make sense | |
3619 | to complete it any other way. */ | |
3620 | { | |
3621 | return_val = (char **) xmalloc (sizeof (char *)); | |
3622 | return_val[0] = NULL; | |
3623 | return return_val; | |
3624 | } | |
3625 | else | |
3626 | { | |
3627 | /* It is not a quoted string. Break it based on the characters | |
3628 | which are in symbols. */ | |
3629 | while (p > text) | |
3630 | { | |
3631 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
3632 | --p; | |
3633 | else | |
3634 | break; | |
3635 | } | |
3636 | sym_text = p; | |
3637 | } | |
3638 | } | |
3639 | ||
3640 | sym_text_len = strlen (sym_text); | |
3641 | ||
3642 | return_val_size = 10; | |
3643 | return_val_index = 0; | |
3644 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
3645 | return_val[0] = NULL; | |
3646 | ||
3647 | /* Find the symtab for SRCFILE (this loads it if it was not yet read | |
3648 | in). */ | |
3649 | s = lookup_symtab (srcfile); | |
3650 | if (s == NULL) | |
3651 | { | |
3652 | /* Maybe they typed the file with leading directories, while the | |
3653 | symbol tables record only its basename. */ | |
31889e00 | 3654 | const char *tail = lbasename (srcfile); |
c94fdfd0 EZ |
3655 | |
3656 | if (tail > srcfile) | |
3657 | s = lookup_symtab (tail); | |
3658 | } | |
3659 | ||
3660 | /* If we have no symtab for that file, return an empty list. */ | |
3661 | if (s == NULL) | |
3662 | return (return_val); | |
3663 | ||
3664 | /* Go through this symtab and check the externs and statics for | |
3665 | symbols which match. */ | |
3666 | ||
3667 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
e88c90f2 | 3668 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c94fdfd0 | 3669 | { |
c94fdfd0 EZ |
3670 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3671 | } | |
3672 | ||
3673 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
e88c90f2 | 3674 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c94fdfd0 | 3675 | { |
c94fdfd0 EZ |
3676 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3677 | } | |
3678 | ||
3679 | return (return_val); | |
3680 | } | |
3681 | ||
3682 | /* A helper function for make_source_files_completion_list. It adds | |
3683 | another file name to a list of possible completions, growing the | |
3684 | list as necessary. */ | |
3685 | ||
3686 | static void | |
3687 | add_filename_to_list (const char *fname, char *text, char *word, | |
3688 | char ***list, int *list_used, int *list_alloced) | |
3689 | { | |
3690 | char *new; | |
3691 | size_t fnlen = strlen (fname); | |
3692 | ||
3693 | if (*list_used + 1 >= *list_alloced) | |
3694 | { | |
3695 | *list_alloced *= 2; | |
3696 | *list = (char **) xrealloc ((char *) *list, | |
3697 | *list_alloced * sizeof (char *)); | |
3698 | } | |
3699 | ||
3700 | if (word == text) | |
3701 | { | |
3702 | /* Return exactly fname. */ | |
3703 | new = xmalloc (fnlen + 5); | |
3704 | strcpy (new, fname); | |
3705 | } | |
3706 | else if (word > text) | |
3707 | { | |
3708 | /* Return some portion of fname. */ | |
3709 | new = xmalloc (fnlen + 5); | |
3710 | strcpy (new, fname + (word - text)); | |
3711 | } | |
3712 | else | |
3713 | { | |
3714 | /* Return some of TEXT plus fname. */ | |
3715 | new = xmalloc (fnlen + (text - word) + 5); | |
3716 | strncpy (new, word, text - word); | |
3717 | new[text - word] = '\0'; | |
3718 | strcat (new, fname); | |
3719 | } | |
3720 | (*list)[*list_used] = new; | |
3721 | (*list)[++*list_used] = NULL; | |
3722 | } | |
3723 | ||
3724 | static int | |
3725 | not_interesting_fname (const char *fname) | |
3726 | { | |
3727 | static const char *illegal_aliens[] = { | |
3728 | "_globals_", /* inserted by coff_symtab_read */ | |
3729 | NULL | |
3730 | }; | |
3731 | int i; | |
3732 | ||
3733 | for (i = 0; illegal_aliens[i]; i++) | |
3734 | { | |
3735 | if (strcmp (fname, illegal_aliens[i]) == 0) | |
3736 | return 1; | |
3737 | } | |
3738 | return 0; | |
3739 | } | |
3740 | ||
3741 | /* Return a NULL terminated array of all source files whose names | |
3742 | begin with matching TEXT. The file names are looked up in the | |
3743 | symbol tables of this program. If the answer is no matchess, then | |
3744 | the return value is an array which contains only a NULL pointer. */ | |
3745 | ||
3746 | char ** | |
3747 | make_source_files_completion_list (char *text, char *word) | |
3748 | { | |
3749 | register struct symtab *s; | |
3750 | register struct partial_symtab *ps; | |
3751 | register struct objfile *objfile; | |
3752 | int first = 1; | |
3753 | int list_alloced = 1; | |
3754 | int list_used = 0; | |
3755 | size_t text_len = strlen (text); | |
3756 | char **list = (char **) xmalloc (list_alloced * sizeof (char *)); | |
31889e00 | 3757 | const char *base_name; |
c94fdfd0 EZ |
3758 | |
3759 | list[0] = NULL; | |
3760 | ||
3761 | if (!have_full_symbols () && !have_partial_symbols ()) | |
3762 | return list; | |
3763 | ||
3764 | ALL_SYMTABS (objfile, s) | |
3765 | { | |
3766 | if (not_interesting_fname (s->filename)) | |
3767 | continue; | |
3768 | if (!filename_seen (s->filename, 1, &first) | |
3769 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3770 | && strncasecmp (s->filename, text, text_len) == 0 | |
3771 | #else | |
3772 | && strncmp (s->filename, text, text_len) == 0 | |
3773 | #endif | |
3774 | ) | |
3775 | { | |
3776 | /* This file matches for a completion; add it to the current | |
3777 | list of matches. */ | |
3778 | add_filename_to_list (s->filename, text, word, | |
3779 | &list, &list_used, &list_alloced); | |
3780 | } | |
3781 | else | |
3782 | { | |
3783 | /* NOTE: We allow the user to type a base name when the | |
3784 | debug info records leading directories, but not the other | |
3785 | way around. This is what subroutines of breakpoint | |
3786 | command do when they parse file names. */ | |
31889e00 | 3787 | base_name = lbasename (s->filename); |
c94fdfd0 EZ |
3788 | if (base_name != s->filename |
3789 | && !filename_seen (base_name, 1, &first) | |
3790 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3791 | && strncasecmp (base_name, text, text_len) == 0 | |
3792 | #else | |
3793 | && strncmp (base_name, text, text_len) == 0 | |
3794 | #endif | |
3795 | ) | |
3796 | add_filename_to_list (base_name, text, word, | |
3797 | &list, &list_used, &list_alloced); | |
3798 | } | |
3799 | } | |
3800 | ||
3801 | ALL_PSYMTABS (objfile, ps) | |
3802 | { | |
3803 | if (not_interesting_fname (ps->filename)) | |
3804 | continue; | |
3805 | if (!ps->readin) | |
3806 | { | |
3807 | if (!filename_seen (ps->filename, 1, &first) | |
3808 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3809 | && strncasecmp (ps->filename, text, text_len) == 0 | |
3810 | #else | |
3811 | && strncmp (ps->filename, text, text_len) == 0 | |
3812 | #endif | |
3813 | ) | |
3814 | { | |
3815 | /* This file matches for a completion; add it to the | |
3816 | current list of matches. */ | |
3817 | add_filename_to_list (ps->filename, text, word, | |
3818 | &list, &list_used, &list_alloced); | |
3819 | ||
3820 | } | |
3821 | else | |
3822 | { | |
31889e00 | 3823 | base_name = lbasename (ps->filename); |
c94fdfd0 EZ |
3824 | if (base_name != ps->filename |
3825 | && !filename_seen (base_name, 1, &first) | |
3826 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3827 | && strncasecmp (base_name, text, text_len) == 0 | |
3828 | #else | |
3829 | && strncmp (base_name, text, text_len) == 0 | |
3830 | #endif | |
3831 | ) | |
3832 | add_filename_to_list (base_name, text, word, | |
3833 | &list, &list_used, &list_alloced); | |
3834 | } | |
3835 | } | |
3836 | } | |
3837 | ||
3838 | return list; | |
3839 | } | |
3840 | ||
c906108c SS |
3841 | /* Determine if PC is in the prologue of a function. The prologue is the area |
3842 | between the first instruction of a function, and the first executable line. | |
3843 | Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue. | |
3844 | ||
3845 | If non-zero, func_start is where we think the prologue starts, possibly | |
3846 | by previous examination of symbol table information. | |
3847 | */ | |
3848 | ||
3849 | int | |
fba45db2 | 3850 | in_prologue (CORE_ADDR pc, CORE_ADDR func_start) |
c906108c SS |
3851 | { |
3852 | struct symtab_and_line sal; | |
3853 | CORE_ADDR func_addr, func_end; | |
3854 | ||
54cf9c03 EZ |
3855 | /* We have several sources of information we can consult to figure |
3856 | this out. | |
3857 | - Compilers usually emit line number info that marks the prologue | |
3858 | as its own "source line". So the ending address of that "line" | |
3859 | is the end of the prologue. If available, this is the most | |
3860 | reliable method. | |
3861 | - The minimal symbols and partial symbols, which can usually tell | |
3862 | us the starting and ending addresses of a function. | |
3863 | - If we know the function's start address, we can call the | |
3864 | architecture-defined SKIP_PROLOGUE function to analyze the | |
3865 | instruction stream and guess where the prologue ends. | |
3866 | - Our `func_start' argument; if non-zero, this is the caller's | |
3867 | best guess as to the function's entry point. At the time of | |
3868 | this writing, handle_inferior_event doesn't get this right, so | |
3869 | it should be our last resort. */ | |
3870 | ||
3871 | /* Consult the partial symbol table, to find which function | |
3872 | the PC is in. */ | |
3873 | if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end)) | |
3874 | { | |
3875 | CORE_ADDR prologue_end; | |
c906108c | 3876 | |
54cf9c03 EZ |
3877 | /* We don't even have minsym information, so fall back to using |
3878 | func_start, if given. */ | |
3879 | if (! func_start) | |
3880 | return 1; /* We *might* be in a prologue. */ | |
c906108c | 3881 | |
54cf9c03 | 3882 | prologue_end = SKIP_PROLOGUE (func_start); |
c906108c | 3883 | |
54cf9c03 EZ |
3884 | return func_start <= pc && pc < prologue_end; |
3885 | } | |
c906108c | 3886 | |
54cf9c03 EZ |
3887 | /* If we have line number information for the function, that's |
3888 | usually pretty reliable. */ | |
3889 | sal = find_pc_line (func_addr, 0); | |
c906108c | 3890 | |
54cf9c03 EZ |
3891 | /* Now sal describes the source line at the function's entry point, |
3892 | which (by convention) is the prologue. The end of that "line", | |
3893 | sal.end, is the end of the prologue. | |
3894 | ||
3895 | Note that, for functions whose source code is all on a single | |
3896 | line, the line number information doesn't always end up this way. | |
3897 | So we must verify that our purported end-of-prologue address is | |
3898 | *within* the function, not at its start or end. */ | |
3899 | if (sal.line == 0 | |
3900 | || sal.end <= func_addr | |
3901 | || func_end <= sal.end) | |
3902 | { | |
3903 | /* We don't have any good line number info, so use the minsym | |
3904 | information, together with the architecture-specific prologue | |
3905 | scanning code. */ | |
3906 | CORE_ADDR prologue_end = SKIP_PROLOGUE (func_addr); | |
c906108c | 3907 | |
54cf9c03 EZ |
3908 | return func_addr <= pc && pc < prologue_end; |
3909 | } | |
c906108c | 3910 | |
54cf9c03 EZ |
3911 | /* We have line number info, and it looks good. */ |
3912 | return func_addr <= pc && pc < sal.end; | |
c906108c SS |
3913 | } |
3914 | ||
3915 | ||
3916 | /* Begin overload resolution functions */ | |
228c6d41 DJ |
3917 | |
3918 | static char * | |
3919 | remove_params (const char *demangled_name) | |
3920 | { | |
3921 | const char *argp; | |
3922 | char *new_name; | |
3923 | int depth; | |
3924 | ||
3925 | if (demangled_name == NULL) | |
3926 | return NULL; | |
3927 | ||
3928 | /* First find the end of the arg list. */ | |
3929 | argp = strrchr (demangled_name, ')'); | |
3930 | if (argp == NULL) | |
3931 | return NULL; | |
3932 | ||
3933 | /* Back up to the beginning. */ | |
3934 | depth = 1; | |
3935 | ||
3936 | while (argp-- > demangled_name) | |
3937 | { | |
3938 | if (*argp == ')') | |
3939 | depth ++; | |
3940 | else if (*argp == '(') | |
3941 | { | |
3942 | depth --; | |
3943 | ||
3944 | if (depth == 0) | |
3945 | break; | |
3946 | } | |
3947 | } | |
3948 | if (depth != 0) | |
3949 | internal_error (__FILE__, __LINE__, | |
3950 | "bad demangled name %s\n", demangled_name); | |
3951 | while (argp[-1] == ' ' && argp > demangled_name) | |
3952 | argp --; | |
3953 | ||
3954 | new_name = xmalloc (argp - demangled_name + 1); | |
3955 | memcpy (new_name, demangled_name, argp - demangled_name); | |
3956 | new_name[argp - demangled_name] = '\0'; | |
3957 | return new_name; | |
3958 | } | |
3959 | ||
c906108c SS |
3960 | /* Helper routine for make_symbol_completion_list. */ |
3961 | ||
3962 | static int sym_return_val_size; | |
3963 | static int sym_return_val_index; | |
3964 | static struct symbol **sym_return_val; | |
3965 | ||
3966 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b JM |
3967 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
3968 | characters. If so, add it to the current completion list. */ | |
c906108c SS |
3969 | |
3970 | static void | |
fba45db2 | 3971 | overload_list_add_symbol (struct symbol *sym, char *oload_name) |
c906108c SS |
3972 | { |
3973 | int newsize; | |
3974 | int i; | |
228c6d41 DJ |
3975 | char *sym_name; |
3976 | ||
3977 | /* If there is no type information, we can't do anything, so skip */ | |
3978 | if (SYMBOL_TYPE (sym) == NULL) | |
3979 | return; | |
3980 | ||
3981 | /* skip any symbols that we've already considered. */ | |
3982 | for (i = 0; i < sym_return_val_index; ++i) | |
22abf04a | 3983 | if (!strcmp (DEPRECATED_SYMBOL_NAME (sym), DEPRECATED_SYMBOL_NAME (sym_return_val[i]))) |
228c6d41 | 3984 | return; |
c906108c SS |
3985 | |
3986 | /* Get the demangled name without parameters */ | |
228c6d41 | 3987 | sym_name = remove_params (SYMBOL_DEMANGLED_NAME (sym)); |
c906108c | 3988 | if (!sym_name) |
228c6d41 | 3989 | return; |
c906108c SS |
3990 | |
3991 | /* skip symbols that cannot match */ | |
3992 | if (strcmp (sym_name, oload_name) != 0) | |
917317f4 | 3993 | { |
b8c9b27d | 3994 | xfree (sym_name); |
917317f4 JM |
3995 | return; |
3996 | } | |
c906108c | 3997 | |
228c6d41 | 3998 | xfree (sym_name); |
c906108c SS |
3999 | |
4000 | /* We have a match for an overload instance, so add SYM to the current list | |
4001 | * of overload instances */ | |
4002 | if (sym_return_val_index + 3 > sym_return_val_size) | |
4003 | { | |
4004 | newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *); | |
4005 | sym_return_val = (struct symbol **) xrealloc ((char *) sym_return_val, newsize); | |
4006 | } | |
4007 | sym_return_val[sym_return_val_index++] = sym; | |
4008 | sym_return_val[sym_return_val_index] = NULL; | |
c906108c SS |
4009 | } |
4010 | ||
4011 | /* Return a null-terminated list of pointers to function symbols that | |
4012 | * match name of the supplied symbol FSYM. | |
4013 | * This is used in finding all overloaded instances of a function name. | |
4014 | * This has been modified from make_symbol_completion_list. */ | |
4015 | ||
4016 | ||
4017 | struct symbol ** | |
fba45db2 | 4018 | make_symbol_overload_list (struct symbol *fsym) |
c906108c SS |
4019 | { |
4020 | register struct symbol *sym; | |
4021 | register struct symtab *s; | |
4022 | register struct partial_symtab *ps; | |
c906108c SS |
4023 | register struct objfile *objfile; |
4024 | register struct block *b, *surrounding_static_block = 0; | |
d4f3574e | 4025 | register int i; |
c906108c SS |
4026 | /* The name we are completing on. */ |
4027 | char *oload_name = NULL; | |
4028 | /* Length of name. */ | |
4029 | int oload_name_len = 0; | |
4030 | ||
228c6d41 | 4031 | /* Look for the symbol we are supposed to complete on. */ |
c906108c | 4032 | |
228c6d41 | 4033 | oload_name = remove_params (SYMBOL_DEMANGLED_NAME (fsym)); |
c906108c SS |
4034 | if (!oload_name) |
4035 | { | |
228c6d41 DJ |
4036 | sym_return_val_size = 1; |
4037 | sym_return_val = (struct symbol **) xmalloc (2 * sizeof (struct symbol *)); | |
4038 | sym_return_val[0] = fsym; | |
4039 | sym_return_val[1] = NULL; | |
4040 | ||
4041 | return sym_return_val; | |
c906108c SS |
4042 | } |
4043 | oload_name_len = strlen (oload_name); | |
4044 | ||
4045 | sym_return_val_size = 100; | |
4046 | sym_return_val_index = 0; | |
4047 | sym_return_val = (struct symbol **) xmalloc ((sym_return_val_size + 1) * sizeof (struct symbol *)); | |
4048 | sym_return_val[0] = NULL; | |
4049 | ||
49fa1dc2 DC |
4050 | /* Read in all partial symtabs containing a partial symbol named |
4051 | OLOAD_NAME. */ | |
c906108c SS |
4052 | |
4053 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b | 4054 | { |
d4f3574e SS |
4055 | struct partial_symbol **psym; |
4056 | ||
c5aa993b JM |
4057 | /* If the psymtab's been read in we'll get it when we search |
4058 | through the blockvector. */ | |
4059 | if (ps->readin) | |
4060 | continue; | |
4061 | ||
176620f1 | 4062 | if ((lookup_partial_symbol (ps, oload_name, NULL, 1, VAR_DOMAIN) |
3d4e8fd2 | 4063 | != NULL) |
176620f1 | 4064 | || (lookup_partial_symbol (ps, oload_name, NULL, 0, VAR_DOMAIN) |
3d4e8fd2 | 4065 | != NULL)) |
49fa1dc2 | 4066 | PSYMTAB_TO_SYMTAB (ps); |
c5aa993b | 4067 | } |
c906108c | 4068 | |
c906108c SS |
4069 | /* Search upwards from currently selected frame (so that we can |
4070 | complete on local vars. */ | |
4071 | ||
ae767bfb | 4072 | for (b = get_selected_block (0); b != NULL; b = BLOCK_SUPERBLOCK (b)) |
c906108c SS |
4073 | { |
4074 | if (!BLOCK_SUPERBLOCK (b)) | |
4075 | { | |
c5aa993b | 4076 | surrounding_static_block = b; /* For elimination of dups */ |
c906108c | 4077 | } |
c5aa993b | 4078 | |
c906108c | 4079 | /* Also catch fields of types defined in this places which match our |
c5aa993b | 4080 | text string. Only complete on types visible from current context. */ |
c906108c | 4081 | |
e88c90f2 | 4082 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c906108c | 4083 | { |
c906108c SS |
4084 | overload_list_add_symbol (sym, oload_name); |
4085 | } | |
4086 | } | |
4087 | ||
4088 | /* Go through the symtabs and check the externs and statics for | |
4089 | symbols which match. */ | |
4090 | ||
4091 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
4092 | { |
4093 | QUIT; | |
4094 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
e88c90f2 | 4095 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 4096 | { |
c5aa993b JM |
4097 | overload_list_add_symbol (sym, oload_name); |
4098 | } | |
4099 | } | |
c906108c SS |
4100 | |
4101 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
4102 | { |
4103 | QUIT; | |
4104 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
4105 | /* Don't do this block twice. */ | |
4106 | if (b == surrounding_static_block) | |
4107 | continue; | |
e88c90f2 | 4108 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 4109 | { |
c5aa993b JM |
4110 | overload_list_add_symbol (sym, oload_name); |
4111 | } | |
4112 | } | |
c906108c | 4113 | |
b8c9b27d | 4114 | xfree (oload_name); |
c906108c SS |
4115 | |
4116 | return (sym_return_val); | |
4117 | } | |
4118 | ||
4119 | /* End of overload resolution functions */ | |
c906108c | 4120 | \f |
50641945 FN |
4121 | struct symtabs_and_lines |
4122 | decode_line_spec (char *string, int funfirstline) | |
4123 | { | |
4124 | struct symtabs_and_lines sals; | |
0378c332 FN |
4125 | struct symtab_and_line cursal; |
4126 | ||
50641945 FN |
4127 | if (string == 0) |
4128 | error ("Empty line specification."); | |
0378c332 FN |
4129 | |
4130 | /* We use whatever is set as the current source line. We do not try | |
4131 | and get a default or it will recursively call us! */ | |
4132 | cursal = get_current_source_symtab_and_line (); | |
4133 | ||
50641945 | 4134 | sals = decode_line_1 (&string, funfirstline, |
0378c332 | 4135 | cursal.symtab, cursal.line, |
50641945 | 4136 | (char ***) NULL); |
0378c332 | 4137 | |
50641945 FN |
4138 | if (*string) |
4139 | error ("Junk at end of line specification: %s", string); | |
4140 | return sals; | |
4141 | } | |
c5aa993b | 4142 | |
51cc5b07 AC |
4143 | /* Track MAIN */ |
4144 | static char *name_of_main; | |
4145 | ||
4146 | void | |
4147 | set_main_name (const char *name) | |
4148 | { | |
4149 | if (name_of_main != NULL) | |
4150 | { | |
4151 | xfree (name_of_main); | |
4152 | name_of_main = NULL; | |
4153 | } | |
4154 | if (name != NULL) | |
4155 | { | |
4156 | name_of_main = xstrdup (name); | |
4157 | } | |
4158 | } | |
4159 | ||
4160 | char * | |
4161 | main_name (void) | |
4162 | { | |
4163 | if (name_of_main != NULL) | |
4164 | return name_of_main; | |
4165 | else | |
4166 | return "main"; | |
4167 | } | |
4168 | ||
4169 | ||
c906108c | 4170 | void |
fba45db2 | 4171 | _initialize_symtab (void) |
c906108c SS |
4172 | { |
4173 | add_info ("variables", variables_info, | |
c5aa993b | 4174 | "All global and static variable names, or those matching REGEXP."); |
c906108c | 4175 | if (dbx_commands) |
c5aa993b JM |
4176 | add_com ("whereis", class_info, variables_info, |
4177 | "All global and static variable names, or those matching REGEXP."); | |
c906108c SS |
4178 | |
4179 | add_info ("functions", functions_info, | |
4180 | "All function names, or those matching REGEXP."); | |
4181 | ||
357e46e7 | 4182 | |
c906108c SS |
4183 | /* FIXME: This command has at least the following problems: |
4184 | 1. It prints builtin types (in a very strange and confusing fashion). | |
4185 | 2. It doesn't print right, e.g. with | |
c5aa993b JM |
4186 | typedef struct foo *FOO |
4187 | type_print prints "FOO" when we want to make it (in this situation) | |
4188 | print "struct foo *". | |
c906108c SS |
4189 | I also think "ptype" or "whatis" is more likely to be useful (but if |
4190 | there is much disagreement "info types" can be fixed). */ | |
4191 | add_info ("types", types_info, | |
4192 | "All type names, or those matching REGEXP."); | |
4193 | ||
c906108c SS |
4194 | add_info ("sources", sources_info, |
4195 | "Source files in the program."); | |
4196 | ||
4197 | add_com ("rbreak", class_breakpoint, rbreak_command, | |
c5aa993b | 4198 | "Set a breakpoint for all functions matching REGEXP."); |
c906108c SS |
4199 | |
4200 | if (xdb_commands) | |
4201 | { | |
4202 | add_com ("lf", class_info, sources_info, "Source files in the program"); | |
4203 | add_com ("lg", class_info, variables_info, | |
c5aa993b | 4204 | "All global and static variable names, or those matching REGEXP."); |
c906108c SS |
4205 | } |
4206 | ||
4207 | /* Initialize the one built-in type that isn't language dependent... */ | |
4208 | builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0, | |
4209 | "<unknown type>", (struct objfile *) NULL); | |
4210 | } |