Commit | Line | Data |
---|---|---|
bd5635a1 | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
07422705 | 2 | Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 1997 |
87041845 | 3 | Free Software Foundation, Inc. |
bd5635a1 RP |
4 | |
5 | This file is part of GDB. | |
6 | ||
997a978c | 7 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 8 | it under the terms of the GNU General Public License as published by |
997a978c JG |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | (at your option) any later version. | |
bd5635a1 | 11 | |
997a978c | 12 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
997a978c | 18 | along with this program; if not, write to the Free Software |
f21c9aec | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
bd5635a1 | 20 | |
bd5635a1 RP |
21 | #include "defs.h" |
22 | #include "symtab.h" | |
cba0d141 | 23 | #include "gdbtypes.h" |
bd5635a1 RP |
24 | #include "gdbcore.h" |
25 | #include "frame.h" | |
26 | #include "target.h" | |
27 | #include "value.h" | |
28 | #include "symfile.h" | |
35a25840 | 29 | #include "objfiles.h" |
bd5635a1 | 30 | #include "gdbcmd.h" |
35a25840 | 31 | #include "call-cmds.h" |
811f1bdc | 32 | #include "gnu-regex.h" |
cba0d141 | 33 | #include "expression.h" |
997a978c | 34 | #include "language.h" |
f70be3e4 | 35 | #include "demangle.h" |
1a490ebc | 36 | #include "inferior.h" |
bd5635a1 | 37 | |
1750a5ef | 38 | #include "obstack.h" |
bd5635a1 RP |
39 | |
40 | #include <sys/types.h> | |
41 | #include <fcntl.h> | |
2b576293 C |
42 | #include "gdb_string.h" |
43 | #include "gdb_stat.h" | |
2cd99985 | 44 | #include <ctype.h> |
bd5635a1 | 45 | |
cba0d141 | 46 | /* Prototypes for local functions */ |
bd5635a1 | 47 | |
2cd99985 | 48 | extern int |
2e4964ad | 49 | find_methods PARAMS ((struct type *, char *, struct symbol **)); |
cba0d141 JG |
50 | |
51 | static void | |
f1ed4330 | 52 | completion_list_add_name PARAMS ((char *, char *, int, char *, char *)); |
cba0d141 | 53 | |
6f87ec4a PS |
54 | static void |
55 | build_canonical_line_spec PARAMS ((struct symtab_and_line *, char *, char ***)); | |
56 | ||
cba0d141 | 57 | static struct symtabs_and_lines |
6f87ec4a | 58 | decode_line_2 PARAMS ((struct symbol *[], int, int, char ***)); |
cba0d141 JG |
59 | |
60 | static void | |
35a25840 | 61 | rbreak_command PARAMS ((char *, int)); |
cba0d141 JG |
62 | |
63 | static void | |
35a25840 | 64 | types_info PARAMS ((char *, int)); |
cba0d141 JG |
65 | |
66 | static void | |
35a25840 | 67 | functions_info PARAMS ((char *, int)); |
cba0d141 JG |
68 | |
69 | static void | |
35a25840 | 70 | variables_info PARAMS ((char *, int)); |
cba0d141 JG |
71 | |
72 | static void | |
35a25840 | 73 | sources_info PARAMS ((char *, int)); |
cba0d141 JG |
74 | |
75 | static void | |
ae6d035d | 76 | list_symbols PARAMS ((char *, int, int, int)); |
cba0d141 JG |
77 | |
78 | static void | |
79 | output_source_filename PARAMS ((char *, int *)); | |
80 | ||
a46d92a7 | 81 | char * |
cba0d141 JG |
82 | operator_chars PARAMS ((char *, char **)); |
83 | ||
018ab14f | 84 | static int find_line_common PARAMS ((struct linetable *, int, int *)); |
cba0d141 JG |
85 | |
86 | static struct partial_symbol * | |
87 | lookup_partial_symbol PARAMS ((struct partial_symtab *, const char *, | |
1750a5ef | 88 | int, namespace_enum)); |
cba0d141 | 89 | |
cba0d141 JG |
90 | static struct symtab * |
91 | lookup_symtab_1 PARAMS ((char *)); | |
92 | ||
b607efe7 FF |
93 | static void |
94 | cplusplus_hint PARAMS ((char *)); | |
95 | ||
cba0d141 | 96 | /* */ |
bd5635a1 | 97 | |
997a978c | 98 | /* The single non-language-specific builtin type */ |
bd5635a1 RP |
99 | struct type *builtin_type_error; |
100 | ||
101 | /* Block in which the most recently searched-for symbol was found. | |
102 | Might be better to make this a parameter to lookup_symbol and | |
103 | value_of_this. */ | |
cba0d141 JG |
104 | |
105 | const struct block *block_found; | |
bd5635a1 RP |
106 | |
107 | char no_symtab_msg[] = "No symbol table is loaded. Use the \"file\" command."; | |
108 | ||
f70be3e4 JG |
109 | /* While the C++ support is still in flux, issue a possibly helpful hint on |
110 | using the new command completion feature on single quoted demangled C++ | |
111 | symbols. Remove when loose ends are cleaned up. FIXME -fnf */ | |
112 | ||
b607efe7 | 113 | static void |
f70be3e4 JG |
114 | cplusplus_hint (name) |
115 | char *name; | |
116 | { | |
9b041f69 PS |
117 | while (*name == '\'') |
118 | name++; | |
1c95d7ab JK |
119 | printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name); |
120 | printf_filtered ("(Note leading single quote.)\n"); | |
f70be3e4 JG |
121 | } |
122 | ||
bd5635a1 RP |
123 | /* Check for a symtab of a specific name; first in symtabs, then in |
124 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
125 | in the symtab filename will also work. */ | |
126 | ||
127 | static struct symtab * | |
128 | lookup_symtab_1 (name) | |
129 | char *name; | |
130 | { | |
131 | register struct symtab *s; | |
132 | register struct partial_symtab *ps; | |
35a25840 | 133 | register char *slash; |
cba0d141 | 134 | register struct objfile *objfile; |
bd5635a1 | 135 | |
784fd92b | 136 | got_symtab: |
35a25840 | 137 | |
784fd92b SG |
138 | /* First, search for an exact match */ |
139 | ||
140 | ALL_SYMTABS (objfile, s) | |
2e4964ad | 141 | if (STREQ (name, s->filename)) |
784fd92b | 142 | return s; |
35a25840 SG |
143 | |
144 | slash = strchr (name, '/'); | |
784fd92b SG |
145 | |
146 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ | |
35a25840 | 147 | |
bd5635a1 | 148 | if (!slash) |
784fd92b SG |
149 | ALL_SYMTABS (objfile, s) |
150 | { | |
151 | char *p = s -> filename; | |
152 | char *tail = strrchr (p, '/'); | |
153 | ||
154 | if (tail) | |
155 | p = tail + 1; | |
156 | ||
2e4964ad | 157 | if (STREQ (p, name)) |
784fd92b SG |
158 | return s; |
159 | } | |
160 | ||
161 | /* Same search rules as above apply here, but now we look thru the | |
162 | psymtabs. */ | |
163 | ||
ad0a2521 JK |
164 | ps = lookup_partial_symtab (name); |
165 | if (!ps) | |
166 | return (NULL); | |
784fd92b SG |
167 | |
168 | if (ps -> readin) | |
35fcebce PB |
169 | error ("Internal: readin %s pst for `%s' found when no symtab found.", |
170 | ps -> filename, name); | |
784fd92b SG |
171 | |
172 | s = PSYMTAB_TO_SYMTAB (ps); | |
173 | ||
174 | if (s) | |
175 | return s; | |
176 | ||
177 | /* At this point, we have located the psymtab for this file, but | |
178 | the conversion to a symtab has failed. This usually happens | |
179 | when we are looking up an include file. In this case, | |
180 | PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has | |
181 | been created. So, we need to run through the symtabs again in | |
182 | order to find the file. | |
183 | XXX - This is a crock, and should be fixed inside of the the | |
184 | symbol parsing routines. */ | |
185 | goto got_symtab; | |
bd5635a1 RP |
186 | } |
187 | ||
188 | /* Lookup the symbol table of a source file named NAME. Try a couple | |
189 | of variations if the first lookup doesn't work. */ | |
190 | ||
191 | struct symtab * | |
192 | lookup_symtab (name) | |
193 | char *name; | |
194 | { | |
195 | register struct symtab *s; | |
1c95d7ab | 196 | #if 0 |
bd5635a1 | 197 | register char *copy; |
1c95d7ab | 198 | #endif |
bd5635a1 RP |
199 | |
200 | s = lookup_symtab_1 (name); | |
201 | if (s) return s; | |
202 | ||
d8a66e60 JK |
203 | #if 0 |
204 | /* This screws c-exp.y:yylex if there is both a type "tree" and a symtab | |
205 | "tree.c". */ | |
206 | ||
bd5635a1 | 207 | /* If name not found as specified, see if adding ".c" helps. */ |
ad0a2521 JK |
208 | /* Why is this? Is it just a user convenience? (If so, it's pretty |
209 | questionable in the presence of C++, FORTRAN, etc.). It's not in | |
210 | the GDB manual. */ | |
bd5635a1 RP |
211 | |
212 | copy = (char *) alloca (strlen (name) + 3); | |
213 | strcpy (copy, name); | |
214 | strcat (copy, ".c"); | |
215 | s = lookup_symtab_1 (copy); | |
216 | if (s) return s; | |
d8a66e60 | 217 | #endif /* 0 */ |
bd5635a1 RP |
218 | |
219 | /* We didn't find anything; die. */ | |
220 | return 0; | |
221 | } | |
222 | ||
ad0a2521 JK |
223 | /* Lookup the partial symbol table of a source file named NAME. |
224 | *If* there is no '/' in the name, a match after a '/' | |
225 | in the psymtab filename will also work. */ | |
bd5635a1 RP |
226 | |
227 | struct partial_symtab * | |
228 | lookup_partial_symtab (name) | |
229 | char *name; | |
230 | { | |
cba0d141 JG |
231 | register struct partial_symtab *pst; |
232 | register struct objfile *objfile; | |
bd5635a1 | 233 | |
35a25840 | 234 | ALL_PSYMTABS (objfile, pst) |
bd5635a1 | 235 | { |
2e4964ad | 236 | if (STREQ (name, pst -> filename)) |
bd5635a1 | 237 | { |
35a25840 | 238 | return (pst); |
bd5635a1 | 239 | } |
35a25840 | 240 | } |
ad0a2521 JK |
241 | |
242 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ | |
243 | ||
244 | if (!strchr (name, '/')) | |
245 | ALL_PSYMTABS (objfile, pst) | |
246 | { | |
247 | char *p = pst -> filename; | |
248 | char *tail = strrchr (p, '/'); | |
249 | ||
250 | if (tail) | |
251 | p = tail + 1; | |
252 | ||
253 | if (STREQ (p, name)) | |
254 | return (pst); | |
255 | } | |
256 | ||
cba0d141 | 257 | return (NULL); |
bd5635a1 | 258 | } |
cba0d141 | 259 | \f |
0b28c260 JK |
260 | /* Demangle a GDB method stub type. |
261 | Note that this function is g++ specific. */ | |
262 | ||
bd5635a1 | 263 | char * |
bcccec8c | 264 | gdb_mangle_name (type, i, j) |
bd5635a1 | 265 | struct type *type; |
bcccec8c | 266 | int i, j; |
bd5635a1 | 267 | { |
bcccec8c PB |
268 | int mangled_name_len; |
269 | char *mangled_name; | |
270 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i); | |
271 | struct fn_field *method = &f[j]; | |
272 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, i); | |
8050a57b | 273 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, j); |
35fcebce | 274 | char *newname = type_name_no_tag (type); |
d47a7f52 JK |
275 | |
276 | /* Does the form of physname indicate that it is the full mangled name | |
277 | of a constructor (not just the args)? */ | |
278 | int is_full_physname_constructor; | |
279 | ||
ad0a2521 | 280 | int is_constructor; |
2d575e6f | 281 | int is_destructor = DESTRUCTOR_PREFIX_P (physname); |
bcccec8c | 282 | /* Need a new type prefix. */ |
bcccec8c PB |
283 | char *const_prefix = method->is_const ? "C" : ""; |
284 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
bcccec8c | 285 | char buf[20]; |
ad0a2521 | 286 | int len = (newname == NULL ? 0 : strlen (newname)); |
ad0a2521 | 287 | |
d47a7f52 JK |
288 | is_full_physname_constructor = |
289 | ((physname[0]=='_' && physname[1]=='_' && | |
290 | (isdigit(physname[2]) || physname[2]=='Q' || physname[2]=='t')) | |
291 | || (strncmp(physname, "__ct", 4) == 0)); | |
292 | ||
293 | is_constructor = | |
294 | is_full_physname_constructor || (newname && STREQ(field_name, newname)); | |
295 | ||
ad0a2521 JK |
296 | if (!is_destructor) |
297 | is_destructor = (strncmp(physname, "__dt", 4) == 0); | |
35fcebce | 298 | |
d47a7f52 | 299 | if (is_destructor || is_full_physname_constructor) |
35fcebce PB |
300 | { |
301 | mangled_name = (char*) xmalloc(strlen(physname)+1); | |
302 | strcpy(mangled_name, physname); | |
303 | return mangled_name; | |
304 | } | |
305 | ||
ad0a2521 JK |
306 | if (len == 0) |
307 | { | |
308 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
ad0a2521 | 309 | } |
27f1958c | 310 | else if (physname[0] == 't' || physname[0] == 'Q') |
76212295 | 311 | { |
27f1958c PS |
312 | /* The physname for template and qualified methods already includes |
313 | the class name. */ | |
76212295 PS |
314 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
315 | newname = NULL; | |
316 | len = 0; | |
317 | } | |
ad0a2521 JK |
318 | else |
319 | { | |
320 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
321 | } | |
35fcebce PB |
322 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) |
323 | + strlen (buf) + len | |
324 | + strlen (physname) | |
325 | + 1); | |
326 | ||
327 | /* Only needed for GNU-mangled names. ANSI-mangled names | |
328 | work with the normal mechanisms. */ | |
329 | if (OPNAME_PREFIX_P (field_name)) | |
330 | { | |
b607efe7 | 331 | const char *opname = cplus_mangle_opname (field_name + 3, 0); |
35fcebce PB |
332 | if (opname == NULL) |
333 | error ("No mangling for \"%s\"", field_name); | |
334 | mangled_name_len += strlen (opname); | |
335 | mangled_name = (char *)xmalloc (mangled_name_len); | |
336 | ||
337 | strncpy (mangled_name, field_name, 3); | |
338 | mangled_name[3] = '\0'; | |
339 | strcat (mangled_name, opname); | |
340 | } | |
341 | else | |
342 | { | |
343 | mangled_name = (char *)xmalloc (mangled_name_len); | |
344 | if (is_constructor) | |
345 | mangled_name[0] = '\0'; | |
346 | else | |
347 | strcpy (mangled_name, field_name); | |
348 | } | |
349 | strcat (mangled_name, buf); | |
018ab14f PS |
350 | /* If the class doesn't have a name, i.e. newname NULL, then we just |
351 | mangle it using 0 for the length of the class. Thus it gets mangled | |
2d575e6f | 352 | as something starting with `::' rather than `classname::'. */ |
018ab14f PS |
353 | if (newname != NULL) |
354 | strcat (mangled_name, newname); | |
2d575e6f | 355 | |
35fcebce | 356 | strcat (mangled_name, physname); |
8050a57b | 357 | return (mangled_name); |
bd5635a1 RP |
358 | } |
359 | ||
cba0d141 | 360 | \f |
211b564e | 361 | |
211b564e PS |
362 | struct partial_symbol * fixup_psymbol_section PARAMS ((struct partial_symbol *, |
363 | struct objfile *)); | |
364 | ||
365 | ||
366 | /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */ | |
f1d77e90 | 367 | |
cba0d141 | 368 | struct partial_symtab * |
211b564e PS |
369 | find_pc_sect_psymtab (pc, section) |
370 | CORE_ADDR pc; | |
371 | asection *section; | |
d96b54ea | 372 | { |
cba0d141 JG |
373 | register struct partial_symtab *pst; |
374 | register struct objfile *objfile; | |
d96b54ea | 375 | |
35a25840 | 376 | ALL_PSYMTABS (objfile, pst) |
bd5635a1 | 377 | { |
c1878f87 | 378 | if (pc >= pst->textlow && pc < pst->texthigh) |
76212295 PS |
379 | { |
380 | struct minimal_symbol *msymbol; | |
381 | struct partial_symtab *tpst; | |
382 | ||
383 | /* An objfile that has its functions reordered might have | |
384 | many partial symbol tables containing the PC, but | |
385 | we want the partial symbol table that contains the | |
386 | function containing the PC. */ | |
211b564e PS |
387 | if (!(objfile->flags & OBJF_REORDERED) && |
388 | section == 0) /* can't validate section this way */ | |
76212295 PS |
389 | return (pst); |
390 | ||
211b564e | 391 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
76212295 PS |
392 | if (msymbol == NULL) |
393 | return (pst); | |
394 | ||
395 | for (tpst = pst; tpst != NULL; tpst = tpst->next) | |
396 | { | |
397 | if (pc >= tpst->textlow && pc < tpst->texthigh) | |
398 | { | |
399 | struct partial_symbol *p; | |
400 | ||
211b564e | 401 | p = find_pc_sect_psymbol (tpst, pc, section); |
76212295 PS |
402 | if (p != NULL |
403 | && SYMBOL_VALUE_ADDRESS(p) | |
404 | == SYMBOL_VALUE_ADDRESS (msymbol)) | |
405 | return (tpst); | |
406 | } | |
407 | } | |
408 | return (pst); | |
409 | } | |
bd5635a1 | 410 | } |
cba0d141 | 411 | return (NULL); |
bd5635a1 RP |
412 | } |
413 | ||
211b564e PS |
414 | /* Find which partial symtab contains PC. Return 0 if none. |
415 | Backward compatibility, no section */ | |
416 | ||
417 | struct partial_symtab * | |
418 | find_pc_psymtab (pc) | |
419 | CORE_ADDR pc; | |
420 | { | |
421 | return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc)); | |
422 | } | |
423 | ||
424 | /* Find which partial symbol within a psymtab matches PC and SECTION. | |
425 | Return 0 if none. Check all psymtabs if PSYMTAB is 0. */ | |
426 | ||
bd5635a1 | 427 | struct partial_symbol * |
211b564e | 428 | find_pc_sect_psymbol (psymtab, pc, section) |
bd5635a1 RP |
429 | struct partial_symtab *psymtab; |
430 | CORE_ADDR pc; | |
211b564e | 431 | asection *section; |
bd5635a1 | 432 | { |
b607efe7 | 433 | struct partial_symbol *best = NULL, *p, **pp; |
bd5635a1 RP |
434 | CORE_ADDR best_pc; |
435 | ||
436 | if (!psymtab) | |
211b564e | 437 | psymtab = find_pc_sect_psymtab (pc, section); |
bd5635a1 RP |
438 | if (!psymtab) |
439 | return 0; | |
440 | ||
441 | best_pc = psymtab->textlow - 1; | |
442 | ||
d8a66e60 JK |
443 | /* Search the global symbols as well as the static symbols, so that |
444 | find_pc_partial_function doesn't use a minimal symbol and thus | |
445 | cache a bad endaddr. */ | |
b607efe7 FF |
446 | for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset; |
447 | (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset) | |
d8a66e60 | 448 | < psymtab->n_global_syms); |
b607efe7 FF |
449 | pp++) |
450 | { | |
451 | p = *pp; | |
452 | if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE | |
453 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
454 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
455 | && SYMBOL_VALUE_ADDRESS (p) > best_pc) | |
456 | { | |
211b564e PS |
457 | if (section) /* match on a specific section */ |
458 | { | |
459 | fixup_psymbol_section (p, psymtab->objfile); | |
460 | if (SYMBOL_BFD_SECTION (p) != section) | |
461 | continue; | |
462 | } | |
b607efe7 FF |
463 | best_pc = SYMBOL_VALUE_ADDRESS (p); |
464 | best = p; | |
465 | } | |
466 | } | |
467 | for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset; | |
468 | (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset) | |
bd5635a1 | 469 | < psymtab->n_static_syms); |
b607efe7 FF |
470 | pp++) |
471 | { | |
472 | p = *pp; | |
473 | if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE | |
474 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
475 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
476 | && SYMBOL_VALUE_ADDRESS (p) > best_pc) | |
477 | { | |
211b564e PS |
478 | if (section) /* match on a specific section */ |
479 | { | |
480 | fixup_psymbol_section (p, psymtab->objfile); | |
481 | if (SYMBOL_BFD_SECTION (p) != section) | |
482 | continue; | |
483 | } | |
b607efe7 FF |
484 | best_pc = SYMBOL_VALUE_ADDRESS (p); |
485 | best = p; | |
486 | } | |
487 | } | |
bd5635a1 RP |
488 | if (best_pc == psymtab->textlow - 1) |
489 | return 0; | |
490 | return best; | |
491 | } | |
492 | ||
211b564e PS |
493 | /* Find which partial symbol within a psymtab matches PC. Return 0 if none. |
494 | Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */ | |
495 | ||
496 | struct partial_symbol * | |
497 | find_pc_psymbol (psymtab, pc) | |
498 | struct partial_symtab *psymtab; | |
499 | CORE_ADDR pc; | |
500 | { | |
501 | return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc)); | |
502 | } | |
503 | \f | |
4c681116 SG |
504 | /* Debug symbols usually don't have section information. We need to dig that |
505 | out of the minimal symbols and stash that in the debug symbol. */ | |
506 | ||
211b564e PS |
507 | static void |
508 | fixup_section (ginfo, objfile) | |
509 | struct general_symbol_info *ginfo; | |
510 | struct objfile *objfile; | |
511 | { | |
512 | struct minimal_symbol *msym; | |
513 | msym = lookup_minimal_symbol (ginfo->name, NULL, objfile); | |
514 | ||
515 | if (msym) | |
516 | ginfo->bfd_section = SYMBOL_BFD_SECTION (msym); | |
517 | } | |
518 | ||
519 | struct symbol * | |
4c681116 SG |
520 | fixup_symbol_section (sym, objfile) |
521 | struct symbol *sym; | |
522 | struct objfile *objfile; | |
523 | { | |
07422705 PS |
524 | if (!sym) |
525 | return NULL; | |
526 | ||
4c681116 SG |
527 | if (SYMBOL_BFD_SECTION (sym)) |
528 | return sym; | |
529 | ||
211b564e | 530 | fixup_section (&sym->ginfo, objfile); |
4c681116 SG |
531 | |
532 | return sym; | |
533 | } | |
534 | ||
211b564e PS |
535 | struct partial_symbol * |
536 | fixup_psymbol_section (psym, objfile) | |
537 | struct partial_symbol *psym; | |
538 | struct objfile *objfile; | |
539 | { | |
211b564e PS |
540 | if (!psym) |
541 | return NULL; | |
542 | ||
543 | if (SYMBOL_BFD_SECTION (psym)) | |
544 | return psym; | |
545 | ||
546 | fixup_section (&psym->ginfo, objfile); | |
547 | ||
548 | return psym; | |
549 | } | |
550 | ||
bd5635a1 RP |
551 | /* Find the definition for a specified symbol name NAME |
552 | in namespace NAMESPACE, visible from lexical block BLOCK. | |
553 | Returns the struct symbol pointer, or zero if no symbol is found. | |
554 | If SYMTAB is non-NULL, store the symbol table in which the | |
555 | symbol was found there, or NULL if not found. | |
556 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if | |
557 | NAME is a field of the current implied argument `this'. If so set | |
558 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. | |
559 | BLOCK_FOUND is set to the block in which NAME is found (in the case of | |
560 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
561 | ||
87041845 JK |
562 | /* This function has a bunch of loops in it and it would seem to be |
563 | attractive to put in some QUIT's (though I'm not really sure | |
564 | whether it can run long enough to be really important). But there | |
565 | are a few calls for which it would appear to be bad news to quit | |
566 | out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and | |
567 | nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++ | |
568 | code below which can error(), but that probably doesn't affect | |
569 | these calls since they are looking for a known variable and thus | |
570 | can probably assume it will never hit the C++ code). */ | |
571 | ||
bd5635a1 RP |
572 | struct symbol * |
573 | lookup_symbol (name, block, namespace, is_a_field_of_this, symtab) | |
cba0d141 JG |
574 | const char *name; |
575 | register const struct block *block; | |
1750a5ef | 576 | const namespace_enum namespace; |
bd5635a1 RP |
577 | int *is_a_field_of_this; |
578 | struct symtab **symtab; | |
579 | { | |
580 | register struct symbol *sym; | |
01d3fdba | 581 | register struct symtab *s = NULL; |
bd5635a1 RP |
582 | register struct partial_symtab *ps; |
583 | struct blockvector *bv; | |
4c681116 | 584 | register struct objfile *objfile = NULL; |
cba0d141 | 585 | register struct block *b; |
cba0d141 | 586 | register struct minimal_symbol *msymbol; |
f70be3e4 | 587 | |
bd5635a1 RP |
588 | /* Search specified block and its superiors. */ |
589 | ||
590 | while (block != 0) | |
591 | { | |
592 | sym = lookup_block_symbol (block, name, namespace); | |
593 | if (sym) | |
594 | { | |
595 | block_found = block; | |
596 | if (symtab != NULL) | |
597 | { | |
598 | /* Search the list of symtabs for one which contains the | |
599 | address of the start of this block. */ | |
35a25840 | 600 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 601 | { |
35a25840 SG |
602 | bv = BLOCKVECTOR (s); |
603 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
604 | if (BLOCK_START (b) <= BLOCK_START (block) | |
605 | && BLOCK_END (b) > BLOCK_START (block)) | |
606 | goto found; | |
bd5635a1 | 607 | } |
35a25840 | 608 | found: |
bd5635a1 RP |
609 | *symtab = s; |
610 | } | |
611 | ||
4c681116 | 612 | return fixup_symbol_section (sym, objfile); |
bd5635a1 RP |
613 | } |
614 | block = BLOCK_SUPERBLOCK (block); | |
615 | } | |
616 | ||
0b28c260 JK |
617 | /* FIXME: this code is never executed--block is always NULL at this |
618 | point. What is it trying to do, anyway? We already should have | |
619 | checked the STATIC_BLOCK above (it is the superblock of top-level | |
620 | blocks). Why is VAR_NAMESPACE special-cased? */ | |
2e4964ad | 621 | /* Don't need to mess with the psymtabs; if we have a block, |
b039ac3a JK |
622 | that file is read in. If we don't, then we deal later with |
623 | all the psymtab stuff that needs checking. */ | |
624 | if (namespace == VAR_NAMESPACE && block != NULL) | |
625 | { | |
626 | struct block *b; | |
627 | /* Find the right symtab. */ | |
35a25840 | 628 | ALL_SYMTABS (objfile, s) |
b039ac3a | 629 | { |
35a25840 SG |
630 | bv = BLOCKVECTOR (s); |
631 | b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
632 | if (BLOCK_START (b) <= BLOCK_START (block) | |
633 | && BLOCK_END (b) > BLOCK_START (block)) | |
b039ac3a | 634 | { |
2e4964ad | 635 | sym = lookup_block_symbol (b, name, VAR_NAMESPACE); |
35a25840 | 636 | if (sym) |
b039ac3a | 637 | { |
35a25840 SG |
638 | block_found = b; |
639 | if (symtab != NULL) | |
640 | *symtab = s; | |
4c681116 | 641 | return fixup_symbol_section (sym, objfile); |
b039ac3a JK |
642 | } |
643 | } | |
644 | } | |
645 | } | |
646 | ||
647 | ||
bd5635a1 RP |
648 | /* C++: If requested to do so by the caller, |
649 | check to see if NAME is a field of `this'. */ | |
650 | if (is_a_field_of_this) | |
651 | { | |
652 | struct value *v = value_of_this (0); | |
653 | ||
654 | *is_a_field_of_this = 0; | |
655 | if (v && check_field (v, name)) | |
656 | { | |
657 | *is_a_field_of_this = 1; | |
658 | if (symtab != NULL) | |
659 | *symtab = NULL; | |
4c681116 | 660 | return NULL; |
bd5635a1 RP |
661 | } |
662 | } | |
663 | ||
664 | /* Now search all global blocks. Do the symtab's first, then | |
665 | check the psymtab's */ | |
cba0d141 | 666 | |
35a25840 | 667 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 668 | { |
35a25840 SG |
669 | bv = BLOCKVECTOR (s); |
670 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
671 | sym = lookup_block_symbol (block, name, namespace); | |
672 | if (sym) | |
bd5635a1 | 673 | { |
35a25840 SG |
674 | block_found = block; |
675 | if (symtab != NULL) | |
676 | *symtab = s; | |
4c681116 | 677 | return fixup_symbol_section (sym, objfile); |
bd5635a1 RP |
678 | } |
679 | } | |
680 | ||
76212295 PS |
681 | /* Check for the possibility of the symbol being a function or |
682 | a mangled variable that is stored in one of the minimal symbol tables. | |
683 | Eventually, all global symbols might be resolved in this way. */ | |
bd5635a1 RP |
684 | |
685 | if (namespace == VAR_NAMESPACE) | |
686 | { | |
2b576293 | 687 | msymbol = lookup_minimal_symbol (name, NULL, NULL); |
f70be3e4 | 688 | if (msymbol != NULL) |
bd5635a1 | 689 | { |
211b564e PS |
690 | s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol), |
691 | SYMBOL_BFD_SECTION (msymbol)); | |
318bf84f | 692 | if (s != NULL) |
bd5635a1 | 693 | { |
76212295 | 694 | /* This is a function which has a symtab for its address. */ |
bd5635a1 | 695 | bv = BLOCKVECTOR (s); |
3ba6a043 | 696 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); |
2e4964ad FF |
697 | sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol), |
698 | namespace); | |
318bf84f | 699 | /* We kept static functions in minimal symbol table as well as |
818de002 | 700 | in static scope. We want to find them in the symbol table. */ |
818de002 PB |
701 | if (!sym) { |
702 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
2e4964ad | 703 | sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol), |
318bf84f | 704 | namespace); |
818de002 | 705 | } |
818de002 | 706 | |
cba0d141 | 707 | /* sym == 0 if symbol was found in the minimal symbol table |
bd5635a1 | 708 | but not in the symtab. |
cba0d141 | 709 | Return 0 to use the msymbol definition of "foo_". |
bd5635a1 RP |
710 | |
711 | This happens for Fortran "foo_" symbols, | |
712 | which are "foo" in the symtab. | |
713 | ||
714 | This can also happen if "asm" is used to make a | |
715 | regular symbol but not a debugging symbol, e.g. | |
716 | asm(".globl _main"); | |
717 | asm("_main:"); | |
718 | */ | |
719 | ||
720 | if (symtab != NULL) | |
721 | *symtab = s; | |
4c681116 | 722 | return fixup_symbol_section (sym, objfile); |
bd5635a1 | 723 | } |
76212295 PS |
724 | else if (MSYMBOL_TYPE (msymbol) != mst_text |
725 | && MSYMBOL_TYPE (msymbol) != mst_file_text | |
726 | && !STREQ (name, SYMBOL_NAME (msymbol))) | |
727 | { | |
728 | /* This is a mangled variable, look it up by its | |
729 | mangled name. */ | |
211b564e PS |
730 | return lookup_symbol (SYMBOL_NAME (msymbol), block, |
731 | namespace, is_a_field_of_this, symtab); | |
76212295 PS |
732 | } |
733 | /* There are no debug symbols for this file, or we are looking | |
734 | for an unmangled variable. | |
735 | Try to find a matching static symbol below. */ | |
bd5635a1 RP |
736 | } |
737 | } | |
738 | ||
35a25840 | 739 | ALL_PSYMTABS (objfile, ps) |
cba0d141 | 740 | { |
35a25840 | 741 | if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace)) |
cba0d141 | 742 | { |
35a25840 SG |
743 | s = PSYMTAB_TO_SYMTAB(ps); |
744 | bv = BLOCKVECTOR (s); | |
745 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
746 | sym = lookup_block_symbol (block, name, namespace); | |
747 | if (!sym) | |
35fcebce | 748 | error ("Internal: global symbol `%s' found in %s psymtab but not in symtab", name, ps->filename); |
35a25840 SG |
749 | if (symtab != NULL) |
750 | *symtab = s; | |
4c681116 | 751 | return fixup_symbol_section (sym, objfile); |
cba0d141 JG |
752 | } |
753 | } | |
bd5635a1 RP |
754 | |
755 | /* Now search all per-file blocks. | |
756 | Not strictly correct, but more useful than an error. | |
757 | Do the symtabs first, then check the psymtabs */ | |
758 | ||
35a25840 | 759 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 760 | { |
35a25840 SG |
761 | bv = BLOCKVECTOR (s); |
762 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
763 | sym = lookup_block_symbol (block, name, namespace); | |
764 | if (sym) | |
bd5635a1 | 765 | { |
35a25840 SG |
766 | block_found = block; |
767 | if (symtab != NULL) | |
768 | *symtab = s; | |
4c681116 | 769 | return fixup_symbol_section (sym, objfile); |
35a25840 SG |
770 | } |
771 | } | |
772 | ||
773 | ALL_PSYMTABS (objfile, ps) | |
774 | { | |
775 | if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace)) | |
776 | { | |
777 | s = PSYMTAB_TO_SYMTAB(ps); | |
cba0d141 JG |
778 | bv = BLOCKVECTOR (s); |
779 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
780 | sym = lookup_block_symbol (block, name, namespace); | |
35a25840 | 781 | if (!sym) |
35fcebce | 782 | error ("Internal: static symbol `%s' found in %s psymtab but not in symtab", name, ps->filename); |
35a25840 SG |
783 | if (symtab != NULL) |
784 | *symtab = s; | |
4c681116 | 785 | return fixup_symbol_section (sym, objfile); |
35a25840 SG |
786 | } |
787 | } | |
788 | ||
bd5635a1 RP |
789 | if (symtab != NULL) |
790 | *symtab = NULL; | |
791 | return 0; | |
792 | } | |
793 | ||
794 | /* Look, in partial_symtab PST, for symbol NAME. Check the global | |
795 | symbols if GLOBAL, the static symbols if not */ | |
796 | ||
797 | static struct partial_symbol * | |
798 | lookup_partial_symbol (pst, name, global, namespace) | |
799 | struct partial_symtab *pst; | |
cba0d141 | 800 | const char *name; |
bd5635a1 | 801 | int global; |
1750a5ef | 802 | namespace_enum namespace; |
bd5635a1 | 803 | { |
b607efe7 FF |
804 | struct partial_symbol **start, **psym; |
805 | struct partial_symbol **top, **bottom, **center; | |
bd5635a1 | 806 | int length = (global ? pst->n_global_syms : pst->n_static_syms); |
2e4964ad | 807 | int do_linear_search = 1; |
bd5635a1 | 808 | |
2e4964ad FF |
809 | if (length == 0) |
810 | { | |
811 | return (NULL); | |
812 | } | |
bd5635a1 RP |
813 | |
814 | start = (global ? | |
cba0d141 JG |
815 | pst->objfile->global_psymbols.list + pst->globals_offset : |
816 | pst->objfile->static_psymbols.list + pst->statics_offset ); | |
bd5635a1 | 817 | |
2e4964ad | 818 | if (global) /* This means we can use a binary search. */ |
bd5635a1 | 819 | { |
2e4964ad | 820 | do_linear_search = 0; |
bd5635a1 RP |
821 | |
822 | /* Binary search. This search is guaranteed to end with center | |
823 | pointing at the earliest partial symbol with the correct | |
824 | name. At that point *all* partial symbols with that name | |
825 | will be checked against the correct namespace. */ | |
2e4964ad | 826 | |
bd5635a1 RP |
827 | bottom = start; |
828 | top = start + length - 1; | |
829 | while (top > bottom) | |
830 | { | |
831 | center = bottom + (top - bottom) / 2; | |
76212295 PS |
832 | if (!(center < top)) |
833 | abort (); | |
b607efe7 | 834 | if (!do_linear_search && SYMBOL_LANGUAGE (*center) == language_cplus) |
2e4964ad FF |
835 | { |
836 | do_linear_search = 1; | |
837 | } | |
b607efe7 | 838 | if (STRCMP (SYMBOL_NAME (*center), name) >= 0) |
2e4964ad FF |
839 | { |
840 | top = center; | |
841 | } | |
bd5635a1 | 842 | else |
2e4964ad FF |
843 | { |
844 | bottom = center + 1; | |
845 | } | |
bd5635a1 | 846 | } |
76212295 PS |
847 | if (!(top == bottom)) |
848 | abort (); | |
b607efe7 | 849 | while (STREQ (SYMBOL_NAME (*top), name)) |
bd5635a1 | 850 | { |
b607efe7 | 851 | if (SYMBOL_NAMESPACE (*top) == namespace) |
2e4964ad | 852 | { |
b607efe7 | 853 | return (*top); |
2e4964ad | 854 | } |
bd5635a1 RP |
855 | top ++; |
856 | } | |
857 | } | |
2e4964ad FF |
858 | |
859 | /* Can't use a binary search or else we found during the binary search that | |
860 | we should also do a linear search. */ | |
861 | ||
862 | if (do_linear_search) | |
bd5635a1 | 863 | { |
bd5635a1 | 864 | for (psym = start; psym < start + length; psym++) |
2e4964ad | 865 | { |
b607efe7 | 866 | if (namespace == SYMBOL_NAMESPACE (*psym)) |
2e4964ad | 867 | { |
b607efe7 | 868 | if (SYMBOL_MATCHES_NAME (*psym, name)) |
2e4964ad | 869 | { |
b607efe7 | 870 | return (*psym); |
2e4964ad FF |
871 | } |
872 | } | |
873 | } | |
bd5635a1 RP |
874 | } |
875 | ||
2e4964ad | 876 | return (NULL); |
bd5635a1 RP |
877 | } |
878 | ||
0e2a896c | 879 | /* Find the psymtab containing main(). */ |
c1878f87 SG |
880 | /* FIXME: What about languages without main() or specially linked |
881 | executables that have no main() ? */ | |
0e2a896c PB |
882 | |
883 | struct partial_symtab * | |
884 | find_main_psymtab () | |
885 | { | |
886 | register struct partial_symtab *pst; | |
cba0d141 JG |
887 | register struct objfile *objfile; |
888 | ||
35a25840 | 889 | ALL_PSYMTABS (objfile, pst) |
cba0d141 | 890 | { |
35a25840 | 891 | if (lookup_partial_symbol (pst, "main", 1, VAR_NAMESPACE)) |
cba0d141 | 892 | { |
35a25840 | 893 | return (pst); |
cba0d141 JG |
894 | } |
895 | } | |
896 | return (NULL); | |
0e2a896c PB |
897 | } |
898 | ||
2e4964ad FF |
899 | /* Search BLOCK for symbol NAME in NAMESPACE. |
900 | ||
901 | Note that if NAME is the demangled form of a C++ symbol, we will fail | |
902 | to find a match during the binary search of the non-encoded names, but | |
903 | for now we don't worry about the slight inefficiency of looking for | |
904 | a match we'll never find, since it will go pretty quick. Once the | |
905 | binary search terminates, we drop through and do a straight linear | |
906 | search on the symbols. Each symbol which is marked as being a C++ | |
907 | symbol (language_cplus set) has both the encoded and non-encoded names | |
908 | tested for a match. */ | |
bd5635a1 RP |
909 | |
910 | struct symbol * | |
911 | lookup_block_symbol (block, name, namespace) | |
cba0d141 JG |
912 | register const struct block *block; |
913 | const char *name; | |
1750a5ef | 914 | const namespace_enum namespace; |
bd5635a1 RP |
915 | { |
916 | register int bot, top, inc; | |
2e4964ad FF |
917 | register struct symbol *sym; |
918 | register struct symbol *sym_found = NULL; | |
919 | register int do_linear_search = 1; | |
bd5635a1 RP |
920 | |
921 | /* If the blocks's symbols were sorted, start with a binary search. */ | |
922 | ||
923 | if (BLOCK_SHOULD_SORT (block)) | |
924 | { | |
2e4964ad FF |
925 | /* Reset the linear search flag so if the binary search fails, we |
926 | won't do the linear search once unless we find some reason to | |
927 | do so, such as finding a C++ symbol during the binary search. | |
928 | Note that for C++ modules, ALL the symbols in a block should | |
929 | end up marked as C++ symbols. */ | |
930 | ||
931 | do_linear_search = 0; | |
932 | top = BLOCK_NSYMS (block); | |
933 | bot = 0; | |
934 | ||
935 | /* Advance BOT to not far before the first symbol whose name is NAME. */ | |
bd5635a1 RP |
936 | |
937 | while (1) | |
938 | { | |
939 | inc = (top - bot + 1); | |
940 | /* No need to keep binary searching for the last few bits worth. */ | |
941 | if (inc < 4) | |
2e4964ad FF |
942 | { |
943 | break; | |
944 | } | |
bd5635a1 RP |
945 | inc = (inc >> 1) + bot; |
946 | sym = BLOCK_SYM (block, inc); | |
2e4964ad FF |
947 | if (!do_linear_search && SYMBOL_LANGUAGE (sym) == language_cplus) |
948 | { | |
949 | do_linear_search = 1; | |
950 | } | |
bd5635a1 | 951 | if (SYMBOL_NAME (sym)[0] < name[0]) |
2e4964ad FF |
952 | { |
953 | bot = inc; | |
954 | } | |
bd5635a1 | 955 | else if (SYMBOL_NAME (sym)[0] > name[0]) |
2e4964ad FF |
956 | { |
957 | top = inc; | |
958 | } | |
959 | else if (STRCMP (SYMBOL_NAME (sym), name) < 0) | |
960 | { | |
961 | bot = inc; | |
962 | } | |
bd5635a1 | 963 | else |
2e4964ad FF |
964 | { |
965 | top = inc; | |
966 | } | |
bd5635a1 RP |
967 | } |
968 | ||
f1ed4330 JK |
969 | /* Now scan forward until we run out of symbols, find one whose |
970 | name is greater than NAME, or find one we want. If there is | |
971 | more than one symbol with the right name and namespace, we | |
972 | return the first one; I believe it is now impossible for us | |
973 | to encounter two symbols with the same name and namespace | |
974 | here, because blocks containing argument symbols are no | |
975 | longer sorted. */ | |
bd5635a1 RP |
976 | |
977 | top = BLOCK_NSYMS (block); | |
978 | while (bot < top) | |
979 | { | |
980 | sym = BLOCK_SYM (block, bot); | |
981 | inc = SYMBOL_NAME (sym)[0] - name[0]; | |
982 | if (inc == 0) | |
2e4964ad FF |
983 | { |
984 | inc = STRCMP (SYMBOL_NAME (sym), name); | |
985 | } | |
bd5635a1 | 986 | if (inc == 0 && SYMBOL_NAMESPACE (sym) == namespace) |
2e4964ad FF |
987 | { |
988 | return (sym); | |
989 | } | |
bd5635a1 | 990 | if (inc > 0) |
2e4964ad FF |
991 | { |
992 | break; | |
993 | } | |
bd5635a1 RP |
994 | bot++; |
995 | } | |
bd5635a1 RP |
996 | } |
997 | ||
2e4964ad FF |
998 | /* Here if block isn't sorted, or we fail to find a match during the |
999 | binary search above. If during the binary search above, we find a | |
1000 | symbol which is a C++ symbol, then we have re-enabled the linear | |
1001 | search flag which was reset when starting the binary search. | |
1002 | ||
1003 | This loop is equivalent to the loop above, but hacked greatly for speed. | |
bd5635a1 RP |
1004 | |
1005 | Note that parameter symbols do not always show up last in the | |
1006 | list; this loop makes sure to take anything else other than | |
1007 | parameter symbols first; it only uses parameter symbols as a | |
1008 | last resort. Note that this only takes up extra computation | |
1009 | time on a match. */ | |
1010 | ||
2e4964ad | 1011 | if (do_linear_search) |
bd5635a1 | 1012 | { |
2e4964ad FF |
1013 | top = BLOCK_NSYMS (block); |
1014 | bot = 0; | |
1015 | while (bot < top) | |
bd5635a1 | 1016 | { |
2e4964ad FF |
1017 | sym = BLOCK_SYM (block, bot); |
1018 | if (SYMBOL_NAMESPACE (sym) == namespace && | |
1019 | SYMBOL_MATCHES_NAME (sym, name)) | |
1020 | { | |
a259afcc JL |
1021 | /* If SYM has aliases, then use any alias that is active |
1022 | at the current PC. If no alias is active at the current | |
1023 | PC, then use the main symbol. | |
1024 | ||
1025 | ?!? Is checking the current pc correct? Is this routine | |
1026 | ever called to look up a symbol from another context? */ | |
d719efc6 DP |
1027 | if (SYMBOL_ALIASES (sym)) |
1028 | sym = ref_search_val (sym, read_pc ()); | |
1029 | ||
2e4964ad FF |
1030 | sym_found = sym; |
1031 | if (SYMBOL_CLASS (sym) != LOC_ARG && | |
1032 | SYMBOL_CLASS (sym) != LOC_LOCAL_ARG && | |
1033 | SYMBOL_CLASS (sym) != LOC_REF_ARG && | |
f1ed4330 | 1034 | SYMBOL_CLASS (sym) != LOC_REGPARM && |
a1c8d76e JK |
1035 | SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR && |
1036 | SYMBOL_CLASS (sym) != LOC_BASEREG_ARG) | |
2e4964ad FF |
1037 | { |
1038 | break; | |
1039 | } | |
1040 | } | |
1041 | bot++; | |
bd5635a1 | 1042 | } |
bd5635a1 | 1043 | } |
2e4964ad | 1044 | return (sym_found); /* Will be NULL if not found. */ |
bd5635a1 | 1045 | } |
2e4964ad | 1046 | |
bd5635a1 RP |
1047 | \f |
1048 | /* Return the symbol for the function which contains a specified | |
1049 | lexical block, described by a struct block BL. */ | |
1050 | ||
1051 | struct symbol * | |
1052 | block_function (bl) | |
1053 | struct block *bl; | |
1054 | { | |
1055 | while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0) | |
1056 | bl = BLOCK_SUPERBLOCK (bl); | |
1057 | ||
1058 | return BLOCK_FUNCTION (bl); | |
1059 | } | |
1060 | ||
211b564e PS |
1061 | /* Find the symtab associated with PC and SECTION. Look through the |
1062 | psymtabs and read in another symtab if necessary. */ | |
bd5635a1 RP |
1063 | |
1064 | struct symtab * | |
211b564e PS |
1065 | find_pc_sect_symtab (pc, section) |
1066 | CORE_ADDR pc; | |
1067 | asection *section; | |
bd5635a1 RP |
1068 | { |
1069 | register struct block *b; | |
1070 | struct blockvector *bv; | |
45a655b0 | 1071 | register struct symtab *s = NULL; |
ca6a826d | 1072 | register struct symtab *best_s = NULL; |
bd5635a1 | 1073 | register struct partial_symtab *ps; |
cba0d141 | 1074 | register struct objfile *objfile; |
40b647e9 | 1075 | CORE_ADDR distance = 0; |
bd5635a1 | 1076 | |
018ab14f PS |
1077 | /* Search all symtabs for the one whose file contains our address, and which |
1078 | is the smallest of all the ones containing the address. This is designed | |
1079 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
1080 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
1081 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
76212295 PS |
1082 | |
1083 | This happens for native ecoff format, where code from included files | |
1084 | gets its own symtab. The symtab for the included file should have | |
1085 | been read in already via the dependency mechanism. | |
1086 | It might be swifter to create several symtabs with the same name | |
1087 | like xcoff does (I'm not sure). | |
1088 | ||
1089 | It also happens for objfiles that have their functions reordered. | |
1090 | For these, the symtab we are looking for is not necessarily read in. */ | |
bd5635a1 | 1091 | |
35a25840 | 1092 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 1093 | { |
35a25840 SG |
1094 | bv = BLOCKVECTOR (s); |
1095 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1096 | if (BLOCK_START (b) <= pc | |
ca6a826d PS |
1097 | && BLOCK_END (b) > pc |
1098 | && (distance == 0 | |
1099 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
1100 | { | |
76212295 PS |
1101 | /* For an objfile that has its functions reordered, |
1102 | find_pc_psymtab will find the proper partial symbol table | |
1103 | and we simply return its corresponding symtab. */ | |
211b564e PS |
1104 | /* In order to better support objfiles that contain both |
1105 | stabs and coff debugging info, we continue on if a psymtab | |
1106 | can't be found. */ | |
b607efe7 | 1107 | if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs) |
76212295 | 1108 | { |
211b564e | 1109 | ps = find_pc_sect_psymtab (pc, section); |
76212295 | 1110 | if (ps) |
211b564e PS |
1111 | return PSYMTAB_TO_SYMTAB (ps); |
1112 | } | |
1113 | if (section != 0) | |
1114 | { | |
1115 | int i; | |
1116 | ||
1117 | for (i = 0; i < b->nsyms; i++) | |
1118 | { | |
1119 | fixup_symbol_section (b->sym[i], objfile); | |
1120 | if (section == SYMBOL_BFD_SECTION (b->sym[i])) | |
1121 | break; | |
1122 | } | |
1123 | if (i >= b->nsyms) | |
1124 | continue; /* no symbol in this symtab matches section */ | |
76212295 | 1125 | } |
ca6a826d PS |
1126 | distance = BLOCK_END (b) - BLOCK_START (b); |
1127 | best_s = s; | |
1128 | } | |
bd5635a1 RP |
1129 | } |
1130 | ||
ca6a826d PS |
1131 | if (best_s != NULL) |
1132 | return(best_s); | |
1133 | ||
45a655b0 | 1134 | s = NULL; |
211b564e | 1135 | ps = find_pc_sect_psymtab (pc, section); |
c1878f87 | 1136 | if (ps) |
bd5635a1 | 1137 | { |
c1878f87 | 1138 | if (ps->readin) |
ac82e9a5 JK |
1139 | /* Might want to error() here (in case symtab is corrupt and |
1140 | will cause a core dump), but maybe we can successfully | |
1141 | continue, so let's not. */ | |
e3d6ec4a | 1142 | /* FIXME-32x64: assumes pc fits in a long */ |
ac82e9a5 | 1143 | warning ("\ |
5573d7d4 JK |
1144 | (Internal error: pc 0x%lx in read in psymtab, but not in symtab.)\n", |
1145 | (unsigned long) pc); | |
c1878f87 | 1146 | s = PSYMTAB_TO_SYMTAB (ps); |
bd5635a1 | 1147 | } |
45a655b0 | 1148 | return (s); |
bd5635a1 | 1149 | } |
211b564e PS |
1150 | |
1151 | /* Find the symtab associated with PC. Look through the psymtabs and | |
1152 | read in another symtab if necessary. Backward compatibility, no section */ | |
1153 | ||
1154 | struct symtab * | |
1155 | find_pc_symtab (pc) | |
1156 | CORE_ADDR pc; | |
1157 | { | |
1158 | return find_pc_sect_symtab (pc, find_pc_mapped_section (pc)); | |
1159 | } | |
1160 | ||
e0ea0fbd | 1161 | \f |
a0cf4681 JK |
1162 | #if 0 |
1163 | ||
e0ea0fbd | 1164 | /* Find the closest symbol value (of any sort -- function or variable) |
a0cf4681 JK |
1165 | for a given address value. Slow but complete. (currently unused, |
1166 | mainly because it is too slow. We could fix it if each symtab and | |
1167 | psymtab had contained in it the addresses ranges of each of its | |
1168 | sections, which also would be required to make things like "info | |
1169 | line *0x2345" cause psymtabs to be converted to symtabs). */ | |
e0ea0fbd JG |
1170 | |
1171 | struct symbol * | |
87041845 | 1172 | find_addr_symbol (addr, symtabp, symaddrp) |
e0ea0fbd | 1173 | CORE_ADDR addr; |
87041845 JK |
1174 | struct symtab **symtabp; |
1175 | CORE_ADDR *symaddrp; | |
e0ea0fbd | 1176 | { |
87041845 | 1177 | struct symtab *symtab, *best_symtab; |
e0ea0fbd JG |
1178 | struct objfile *objfile; |
1179 | register int bot, top; | |
1180 | register struct symbol *sym; | |
1181 | register CORE_ADDR sym_addr; | |
1182 | struct block *block; | |
1183 | int blocknum; | |
1184 | ||
1185 | /* Info on best symbol seen so far */ | |
1186 | ||
1187 | register CORE_ADDR best_sym_addr = 0; | |
1188 | struct symbol *best_sym = 0; | |
1189 | ||
1190 | /* FIXME -- we should pull in all the psymtabs, too! */ | |
1191 | ALL_SYMTABS (objfile, symtab) | |
1192 | { | |
1193 | /* Search the global and static blocks in this symtab for | |
1194 | the closest symbol-address to the desired address. */ | |
1195 | ||
1196 | for (blocknum = GLOBAL_BLOCK; blocknum <= STATIC_BLOCK; blocknum++) | |
1197 | { | |
1198 | QUIT; | |
1199 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), blocknum); | |
1200 | top = BLOCK_NSYMS (block); | |
1201 | for (bot = 0; bot < top; bot++) | |
1202 | { | |
1203 | sym = BLOCK_SYM (block, bot); | |
1204 | switch (SYMBOL_CLASS (sym)) | |
1205 | { | |
1206 | case LOC_STATIC: | |
1207 | case LOC_LABEL: | |
1208 | sym_addr = SYMBOL_VALUE_ADDRESS (sym); | |
1209 | break; | |
1210 | ||
1211 | case LOC_BLOCK: | |
1212 | sym_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
1213 | break; | |
1214 | ||
1215 | default: | |
1216 | continue; | |
1217 | } | |
1218 | ||
1219 | if (sym_addr <= addr) | |
1220 | if (sym_addr > best_sym_addr) | |
1221 | { | |
1222 | /* Quit if we found an exact match. */ | |
e0ea0fbd JG |
1223 | best_sym = sym; |
1224 | best_sym_addr = sym_addr; | |
87041845 JK |
1225 | best_symtab = symtab; |
1226 | if (sym_addr == addr) | |
1227 | goto done; | |
e0ea0fbd JG |
1228 | } |
1229 | } | |
1230 | } | |
1231 | } | |
87041845 JK |
1232 | |
1233 | done: | |
1234 | if (symtabp) | |
1235 | *symtabp = best_symtab; | |
1236 | if (symaddrp) | |
1237 | *symaddrp = best_sym_addr; | |
e0ea0fbd JG |
1238 | return best_sym; |
1239 | } | |
a0cf4681 | 1240 | #endif /* 0 */ |
bd5635a1 | 1241 | |
211b564e | 1242 | /* Find the source file and line number for a given PC value and section. |
bd5635a1 RP |
1243 | Return a structure containing a symtab pointer, a line number, |
1244 | and a pc range for the entire source line. | |
1245 | The value's .pc field is NOT the specified pc. | |
1246 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
1247 | use the line that ends there. Otherwise, in that case, the line | |
1248 | that begins there is used. */ | |
1249 | ||
b638ca91 SG |
1250 | /* The big complication here is that a line may start in one file, and end just |
1251 | before the start of another file. This usually occurs when you #include | |
1252 | code in the middle of a subroutine. To properly find the end of a line's PC | |
1253 | range, we must search all symtabs associated with this compilation unit, and | |
1254 | find the one whose first PC is closer than that of the next line in this | |
01d3fdba | 1255 | symtab. */ |
b638ca91 | 1256 | |
d34d6f75 JK |
1257 | /* If it's worth the effort, we could be using a binary search. */ |
1258 | ||
bd5635a1 | 1259 | struct symtab_and_line |
211b564e | 1260 | find_pc_sect_line (pc, section, notcurrent) |
bd5635a1 | 1261 | CORE_ADDR pc; |
211b564e | 1262 | struct sec *section; |
bd5635a1 RP |
1263 | int notcurrent; |
1264 | { | |
1265 | struct symtab *s; | |
1266 | register struct linetable *l; | |
1267 | register int len; | |
1268 | register int i; | |
b638ca91 | 1269 | register struct linetable_entry *item; |
bd5635a1 RP |
1270 | struct symtab_and_line val; |
1271 | struct blockvector *bv; | |
1272 | ||
1273 | /* Info on best line seen so far, and where it starts, and its file. */ | |
1274 | ||
b638ca91 | 1275 | struct linetable_entry *best = NULL; |
bd5635a1 RP |
1276 | CORE_ADDR best_end = 0; |
1277 | struct symtab *best_symtab = 0; | |
1278 | ||
1279 | /* Store here the first line number | |
1280 | of a file which contains the line at the smallest pc after PC. | |
1281 | If we don't find a line whose range contains PC, | |
1282 | we will use a line one less than this, | |
1283 | with a range from the start of that file to the first line's pc. */ | |
b638ca91 | 1284 | struct linetable_entry *alt = NULL; |
bd5635a1 RP |
1285 | struct symtab *alt_symtab = 0; |
1286 | ||
1287 | /* Info on best line seen in this file. */ | |
1288 | ||
b638ca91 | 1289 | struct linetable_entry *prev; |
bd5635a1 RP |
1290 | |
1291 | /* If this pc is not from the current frame, | |
1292 | it is the address of the end of a call instruction. | |
1293 | Quite likely that is the start of the following statement. | |
1294 | But what we want is the statement containing the instruction. | |
1295 | Fudge the pc to make sure we get that. */ | |
1296 | ||
07422705 PS |
1297 | INIT_SAL (&val); /* initialize to zeroes */ |
1298 | ||
211b564e | 1299 | if (notcurrent) |
07422705 | 1300 | pc -= 1; |
bd5635a1 | 1301 | |
211b564e | 1302 | s = find_pc_sect_symtab (pc, section); |
c1878f87 | 1303 | if (!s) |
bd5635a1 | 1304 | { |
bd5635a1 | 1305 | val.pc = pc; |
bd5635a1 RP |
1306 | return val; |
1307 | } | |
1308 | ||
1309 | bv = BLOCKVECTOR (s); | |
1310 | ||
1311 | /* Look at all the symtabs that share this blockvector. | |
1312 | They all have the same apriori range, that we found was right; | |
1313 | but they have different line tables. */ | |
1314 | ||
1315 | for (; s && BLOCKVECTOR (s) == bv; s = s->next) | |
1316 | { | |
1317 | /* Find the best line in this symtab. */ | |
1318 | l = LINETABLE (s); | |
4137c5fc JG |
1319 | if (!l) |
1320 | continue; | |
bd5635a1 | 1321 | len = l->nitems; |
01d3fdba | 1322 | if (len <= 0) |
c1878f87 | 1323 | { |
01d3fdba JK |
1324 | /* I think len can be zero if the symtab lacks line numbers |
1325 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
1326 | I'm not sure which, and maybe it depends on the symbol | |
1327 | reader). */ | |
c1878f87 SG |
1328 | continue; |
1329 | } | |
1330 | ||
b638ca91 SG |
1331 | prev = NULL; |
1332 | item = l->item; /* Get first line info */ | |
c1878f87 SG |
1333 | |
1334 | /* Is this file's first line closer than the first lines of other files? | |
1335 | If so, record this file, and its first line, as best alternate. */ | |
b638ca91 | 1336 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
c1878f87 SG |
1337 | { |
1338 | alt = item; | |
1339 | alt_symtab = s; | |
1340 | } | |
1341 | ||
b638ca91 | 1342 | for (i = 0; i < len; i++, item++) |
bd5635a1 | 1343 | { |
b607efe7 FF |
1344 | /* Leave prev pointing to the linetable entry for the last line |
1345 | that started at or before PC. */ | |
b638ca91 | 1346 | if (item->pc > pc) |
bd5635a1 | 1347 | break; |
c1878f87 SG |
1348 | |
1349 | prev = item; | |
bd5635a1 RP |
1350 | } |
1351 | ||
c1878f87 SG |
1352 | /* At this point, prev points at the line whose start addr is <= pc, and |
1353 | item points at the next line. If we ran off the end of the linetable | |
1354 | (pc >= start of the last line), then prev == item. If pc < start of | |
1355 | the first line, prev will not be set. */ | |
1356 | ||
bd5635a1 RP |
1357 | /* Is this file's best line closer than the best in the other files? |
1358 | If so, record this file, and its best line, as best so far. */ | |
c1878f87 | 1359 | |
b638ca91 | 1360 | if (prev && (!best || prev->pc > best->pc)) |
bd5635a1 | 1361 | { |
c1878f87 | 1362 | best = prev; |
bd5635a1 | 1363 | best_symtab = s; |
cba0d141 JG |
1364 | /* If another line is in the linetable, and its PC is closer |
1365 | than the best_end we currently have, take it as best_end. */ | |
b638ca91 SG |
1366 | if (i < len && (best_end == 0 || best_end > item->pc)) |
1367 | best_end = item->pc; | |
bd5635a1 RP |
1368 | } |
1369 | } | |
c1878f87 SG |
1370 | |
1371 | if (!best_symtab) | |
bd5635a1 | 1372 | { |
c1878f87 SG |
1373 | if (!alt_symtab) |
1374 | { /* If we didn't find any line # info, just | |
07422705 | 1375 | return zeros. */ |
c1878f87 | 1376 | val.pc = pc; |
c1878f87 SG |
1377 | } |
1378 | else | |
1379 | { | |
1380 | val.symtab = alt_symtab; | |
b638ca91 | 1381 | val.line = alt->line - 1; |
2b576293 C |
1382 | |
1383 | /* Don't return line 0, that means that we didn't find the line. */ | |
1384 | if (val.line == 0) ++val.line; | |
1385 | ||
c1878f87 | 1386 | val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); |
b638ca91 | 1387 | val.end = alt->pc; |
c1878f87 | 1388 | } |
bd5635a1 RP |
1389 | } |
1390 | else | |
1391 | { | |
1392 | val.symtab = best_symtab; | |
b638ca91 SG |
1393 | val.line = best->line; |
1394 | val.pc = best->pc; | |
1395 | if (best_end && (!alt || best_end < alt->pc)) | |
cba0d141 | 1396 | val.end = best_end; |
a8a69e63 | 1397 | else if (alt) |
b638ca91 | 1398 | val.end = alt->pc; |
cba0d141 JG |
1399 | else |
1400 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
bd5635a1 | 1401 | } |
211b564e | 1402 | val.section = section; |
bd5635a1 RP |
1403 | return val; |
1404 | } | |
211b564e PS |
1405 | |
1406 | /* Backward compatibility (no section) */ | |
1407 | ||
1408 | struct symtab_and_line | |
1409 | find_pc_line (pc, notcurrent) | |
1410 | CORE_ADDR pc; | |
1411 | int notcurrent; | |
1412 | { | |
1413 | asection *section; | |
1414 | ||
1415 | section = find_pc_overlay (pc); | |
1416 | if (pc_in_unmapped_range (pc, section)) | |
1417 | pc = overlay_mapped_address (pc, section); | |
1418 | return find_pc_sect_line (pc, section, notcurrent); | |
1419 | } | |
1420 | ||
bd5635a1 | 1421 | \f |
018ab14f PS |
1422 | static int find_line_symtab PARAMS ((struct symtab *, int, struct linetable **, |
1423 | int *, int *)); | |
1424 | ||
1425 | /* Find line number LINE in any symtab whose name is the same as | |
1426 | SYMTAB. | |
1427 | ||
1428 | If found, return 1, set *LINETABLE to the linetable in which it was | |
1429 | found, set *INDEX to the index in the linetable of the best entry | |
1430 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
1431 | exact match. | |
1432 | ||
1433 | If not found, return 0. */ | |
1434 | ||
1435 | static int | |
1436 | find_line_symtab (symtab, line, linetable, index, exact_match) | |
1437 | struct symtab *symtab; | |
1438 | int line; | |
1439 | struct linetable **linetable; | |
1440 | int *index; | |
1441 | int *exact_match; | |
1442 | { | |
1443 | int exact; | |
1444 | ||
1445 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
1446 | so far seen. */ | |
1447 | ||
1448 | int best_index; | |
1449 | struct linetable *best_linetable; | |
1450 | ||
1451 | /* First try looking it up in the given symtab. */ | |
1452 | best_linetable = LINETABLE (symtab); | |
1453 | best_index = find_line_common (best_linetable, line, &exact); | |
1454 | if (best_index < 0 || !exact) | |
1455 | { | |
1456 | /* Didn't find an exact match. So we better keep looking for | |
1457 | another symtab with the same name. In the case of xcoff, | |
1458 | multiple csects for one source file (produced by IBM's FORTRAN | |
1459 | compiler) produce multiple symtabs (this is unavoidable | |
1460 | assuming csects can be at arbitrary places in memory and that | |
1461 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
1462 | ||
1463 | /* BEST is the smallest linenumber > LINE so far seen, | |
1464 | or 0 if none has been seen so far. | |
1465 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
1466 | int best; | |
1467 | ||
1468 | struct objfile *objfile; | |
1469 | struct symtab *s; | |
1470 | ||
1471 | if (best_index >= 0) | |
1472 | best = best_linetable->item[best_index].line; | |
1473 | else | |
1474 | best = 0; | |
1475 | ||
1476 | ALL_SYMTABS (objfile, s) | |
1477 | { | |
1478 | struct linetable *l; | |
1479 | int ind; | |
1480 | ||
1481 | if (!STREQ (symtab->filename, s->filename)) | |
1482 | continue; | |
1483 | l = LINETABLE (s); | |
1484 | ind = find_line_common (l, line, &exact); | |
1485 | if (ind >= 0) | |
1486 | { | |
1487 | if (exact) | |
1488 | { | |
1489 | best_index = ind; | |
1490 | best_linetable = l; | |
1491 | goto done; | |
1492 | } | |
1493 | if (best == 0 || l->item[ind].line < best) | |
1494 | { | |
1495 | best = l->item[ind].line; | |
1496 | best_index = ind; | |
1497 | best_linetable = l; | |
1498 | } | |
1499 | } | |
1500 | } | |
1501 | } | |
1502 | done: | |
1503 | if (best_index < 0) | |
1504 | return 0; | |
1505 | ||
1506 | if (index) | |
1507 | *index = best_index; | |
1508 | if (linetable) | |
1509 | *linetable = best_linetable; | |
1510 | if (exact_match) | |
1511 | *exact_match = exact; | |
1512 | return 1; | |
1513 | } | |
1514 | \f | |
bd5635a1 RP |
1515 | /* Find the PC value for a given source file and line number. |
1516 | Returns zero for invalid line number. | |
1517 | The source file is specified with a struct symtab. */ | |
1518 | ||
1519 | CORE_ADDR | |
1520 | find_line_pc (symtab, line) | |
1521 | struct symtab *symtab; | |
1522 | int line; | |
1523 | { | |
018ab14f PS |
1524 | struct linetable *l; |
1525 | int ind; | |
bd5635a1 RP |
1526 | |
1527 | if (symtab == 0) | |
1528 | return 0; | |
018ab14f PS |
1529 | if (find_line_symtab (symtab, line, &l, &ind, NULL)) |
1530 | return l->item[ind].pc; | |
1531 | else | |
1532 | return 0; | |
bd5635a1 RP |
1533 | } |
1534 | ||
1535 | /* Find the range of pc values in a line. | |
1536 | Store the starting pc of the line into *STARTPTR | |
1537 | and the ending pc (start of next line) into *ENDPTR. | |
1538 | Returns 1 to indicate success. | |
1539 | Returns 0 if could not find the specified line. */ | |
1540 | ||
1541 | int | |
b86a1b3b JK |
1542 | find_line_pc_range (sal, startptr, endptr) |
1543 | struct symtab_and_line sal; | |
bd5635a1 RP |
1544 | CORE_ADDR *startptr, *endptr; |
1545 | { | |
b86a1b3b JK |
1546 | CORE_ADDR startaddr; |
1547 | struct symtab_and_line found_sal; | |
bd5635a1 | 1548 | |
b86a1b3b JK |
1549 | startaddr = sal.pc; |
1550 | if (startaddr == 0) | |
1551 | { | |
1552 | startaddr = find_line_pc (sal.symtab, sal.line); | |
1553 | } | |
1554 | if (startaddr == 0) | |
bd5635a1 RP |
1555 | return 0; |
1556 | ||
b86a1b3b JK |
1557 | /* This whole function is based on address. For example, if line 10 has |
1558 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
1559 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
1560 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
1561 | This also insures that we never give a range like "starts at 0x134 | |
1562 | and ends at 0x12c". */ | |
1563 | ||
211b564e | 1564 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); |
b86a1b3b | 1565 | if (found_sal.line != sal.line) |
bd5635a1 | 1566 | { |
b86a1b3b JK |
1567 | /* The specified line (sal) has zero bytes. */ |
1568 | *startptr = found_sal.pc; | |
1569 | *endptr = found_sal.pc; | |
bd5635a1 | 1570 | } |
b86a1b3b JK |
1571 | else |
1572 | { | |
1573 | *startptr = found_sal.pc; | |
1574 | *endptr = found_sal.end; | |
1575 | } | |
1576 | return 1; | |
bd5635a1 RP |
1577 | } |
1578 | ||
1579 | /* Given a line table and a line number, return the index into the line | |
1580 | table for the pc of the nearest line whose number is >= the specified one. | |
b203fc18 | 1581 | Return -1 if none is found. The value is >= 0 if it is an index. |
bd5635a1 RP |
1582 | |
1583 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
1584 | ||
1585 | static int | |
1586 | find_line_common (l, lineno, exact_match) | |
1587 | register struct linetable *l; | |
1588 | register int lineno; | |
1589 | int *exact_match; | |
1590 | { | |
1591 | register int i; | |
1592 | register int len; | |
1593 | ||
1594 | /* BEST is the smallest linenumber > LINENO so far seen, | |
1595 | or 0 if none has been seen so far. | |
1596 | BEST_INDEX identifies the item for it. */ | |
1597 | ||
b203fc18 | 1598 | int best_index = -1; |
bd5635a1 RP |
1599 | int best = 0; |
1600 | ||
1601 | if (lineno <= 0) | |
b203fc18 | 1602 | return -1; |
4137c5fc JG |
1603 | if (l == 0) |
1604 | return -1; | |
bd5635a1 RP |
1605 | |
1606 | len = l->nitems; | |
1607 | for (i = 0; i < len; i++) | |
1608 | { | |
1609 | register struct linetable_entry *item = &(l->item[i]); | |
1610 | ||
1611 | if (item->line == lineno) | |
1612 | { | |
d34d6f75 | 1613 | /* Return the first (lowest address) entry which matches. */ |
bd5635a1 RP |
1614 | *exact_match = 1; |
1615 | return i; | |
1616 | } | |
1617 | ||
1618 | if (item->line > lineno && (best == 0 || item->line < best)) | |
1619 | { | |
1620 | best = item->line; | |
1621 | best_index = i; | |
1622 | } | |
1623 | } | |
1624 | ||
1625 | /* If we got here, we didn't get an exact match. */ | |
1626 | ||
1627 | *exact_match = 0; | |
1628 | return best_index; | |
1629 | } | |
1630 | ||
1631 | int | |
1632 | find_pc_line_pc_range (pc, startptr, endptr) | |
1633 | CORE_ADDR pc; | |
1634 | CORE_ADDR *startptr, *endptr; | |
1635 | { | |
1636 | struct symtab_and_line sal; | |
1637 | sal = find_pc_line (pc, 0); | |
1638 | *startptr = sal.pc; | |
1639 | *endptr = sal.end; | |
1640 | return sal.symtab != 0; | |
1641 | } | |
76212295 PS |
1642 | |
1643 | /* Given a function symbol SYM, find the symtab and line for the start | |
1644 | of the function. | |
1645 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
1646 | of real code inside the function. */ | |
1647 | ||
1648 | static struct symtab_and_line | |
1649 | find_function_start_sal PARAMS ((struct symbol *sym, int)); | |
1650 | ||
1651 | static struct symtab_and_line | |
1652 | find_function_start_sal (sym, funfirstline) | |
1653 | struct symbol *sym; | |
1654 | int funfirstline; | |
1655 | { | |
1656 | CORE_ADDR pc; | |
1657 | struct symtab_and_line sal; | |
1658 | ||
1659 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
211b564e | 1660 | fixup_symbol_section (sym, NULL); |
76212295 | 1661 | if (funfirstline) |
211b564e PS |
1662 | { /* skip "first line" of function (which is actually its prologue) */ |
1663 | asection *section = SYMBOL_BFD_SECTION (sym); | |
1664 | /* If function is in an unmapped overlay, use its unmapped LMA | |
1665 | address, so that SKIP_PROLOGUE has something unique to work on */ | |
1666 | if (section_is_overlay (section) && | |
1667 | !section_is_mapped (section)) | |
1668 | pc = overlay_unmapped_address (pc, section); | |
1669 | ||
76212295 PS |
1670 | pc += FUNCTION_START_OFFSET; |
1671 | SKIP_PROLOGUE (pc); | |
211b564e PS |
1672 | |
1673 | /* For overlays, map pc back into its mapped VMA range */ | |
1674 | pc = overlay_mapped_address (pc, section); | |
76212295 | 1675 | } |
211b564e | 1676 | sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0); |
76212295 PS |
1677 | |
1678 | #ifdef PROLOGUE_FIRSTLINE_OVERLAP | |
1679 | /* Convex: no need to suppress code on first line, if any */ | |
1680 | sal.pc = pc; | |
1681 | #else | |
1682 | /* Check if SKIP_PROLOGUE left us in mid-line, and the next | |
1683 | line is still part of the same function. */ | |
1684 | if (sal.pc != pc | |
1685 | && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end | |
1686 | && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
1687 | { | |
1688 | /* First pc of next line */ | |
1689 | pc = sal.end; | |
1690 | /* Recalculate the line number (might not be N+1). */ | |
211b564e | 1691 | sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0); |
76212295 PS |
1692 | } |
1693 | sal.pc = pc; | |
1694 | #endif | |
1695 | ||
1696 | return sal; | |
1697 | } | |
bd5635a1 | 1698 | \f |
d96b54ea JK |
1699 | /* If P is of the form "operator[ \t]+..." where `...' is |
1700 | some legitimate operator text, return a pointer to the | |
1701 | beginning of the substring of the operator text. | |
1702 | Otherwise, return "". */ | |
a46d92a7 | 1703 | char * |
d96b54ea JK |
1704 | operator_chars (p, end) |
1705 | char *p; | |
1706 | char **end; | |
1707 | { | |
1708 | *end = ""; | |
1709 | if (strncmp (p, "operator", 8)) | |
1710 | return *end; | |
1711 | p += 8; | |
1712 | ||
1713 | /* Don't get faked out by `operator' being part of a longer | |
1714 | identifier. */ | |
2cd99985 | 1715 | if (isalpha(*p) || *p == '_' || *p == '$' || *p == '\0') |
d96b54ea JK |
1716 | return *end; |
1717 | ||
1718 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
1719 | while (*p == ' ' || *p == '\t') | |
1720 | p++; | |
1721 | ||
2cd99985 PB |
1722 | /* Recognize 'operator TYPENAME'. */ |
1723 | ||
1724 | if (isalpha(*p) || *p == '_' || *p == '$') | |
1725 | { | |
1726 | register char *q = p+1; | |
1727 | while (isalnum(*q) || *q == '_' || *q == '$') | |
1728 | q++; | |
1729 | *end = q; | |
1730 | return p; | |
1731 | } | |
1732 | ||
d96b54ea JK |
1733 | switch (*p) |
1734 | { | |
1735 | case '!': | |
1736 | case '=': | |
1737 | case '*': | |
1738 | case '/': | |
1739 | case '%': | |
1740 | case '^': | |
1741 | if (p[1] == '=') | |
1742 | *end = p+2; | |
1743 | else | |
1744 | *end = p+1; | |
1745 | return p; | |
1746 | case '<': | |
1747 | case '>': | |
1748 | case '+': | |
1749 | case '-': | |
1750 | case '&': | |
1751 | case '|': | |
1752 | if (p[1] == '=' || p[1] == p[0]) | |
1753 | *end = p+2; | |
1754 | else | |
1755 | *end = p+1; | |
1756 | return p; | |
1757 | case '~': | |
1758 | case ',': | |
1759 | *end = p+1; | |
1760 | return p; | |
1761 | case '(': | |
1762 | if (p[1] != ')') | |
1763 | error ("`operator ()' must be specified without whitespace in `()'"); | |
1764 | *end = p+2; | |
1765 | return p; | |
1766 | case '?': | |
1767 | if (p[1] != ':') | |
1768 | error ("`operator ?:' must be specified without whitespace in `?:'"); | |
1769 | *end = p+2; | |
1770 | return p; | |
1771 | case '[': | |
1772 | if (p[1] != ']') | |
1773 | error ("`operator []' must be specified without whitespace in `[]'"); | |
1774 | *end = p+2; | |
1775 | return p; | |
1776 | default: | |
1777 | error ("`operator %s' not supported", p); | |
1778 | break; | |
1779 | } | |
1780 | *end = ""; | |
1781 | return *end; | |
1782 | } | |
1783 | ||
2b576293 C |
1784 | /* Return the number of methods described for TYPE, including the |
1785 | methods from types it derives from. This can't be done in the symbol | |
1786 | reader because the type of the baseclass might still be stubbed | |
1787 | when the definition of the derived class is parsed. */ | |
1788 | ||
1789 | static int total_number_of_methods PARAMS ((struct type *type)); | |
1790 | ||
1791 | static int | |
1792 | total_number_of_methods (type) | |
1793 | struct type *type; | |
1794 | { | |
1795 | int n; | |
1796 | int count; | |
1797 | ||
940d5967 | 1798 | CHECK_TYPEDEF (type); |
211b564e PS |
1799 | if (TYPE_CPLUS_SPECIFIC (type) == NULL) |
1800 | return 0; | |
2b576293 C |
1801 | count = TYPE_NFN_FIELDS_TOTAL (type); |
1802 | ||
1803 | for (n = 0; n < TYPE_N_BASECLASSES (type); n++) | |
1804 | count += total_number_of_methods (TYPE_BASECLASS (type, n)); | |
1805 | ||
1806 | return count; | |
1807 | } | |
1808 | ||
bd5635a1 | 1809 | /* Recursive helper function for decode_line_1. |
2b576293 C |
1810 | Look for methods named NAME in type T. |
1811 | Return number of matches. | |
1812 | Put matches in SYM_ARR, which should have been allocated with | |
1813 | a size of total_number_of_methods (T) * sizeof (struct symbol *). | |
1814 | Note that this function is g++ specific. */ | |
bd5635a1 | 1815 | |
2cd99985 | 1816 | int |
2e4964ad | 1817 | find_methods (t, name, sym_arr) |
bd5635a1 RP |
1818 | struct type *t; |
1819 | char *name; | |
bd5635a1 RP |
1820 | struct symbol **sym_arr; |
1821 | { | |
1822 | int i1 = 0; | |
1823 | int ibase; | |
1824 | struct symbol *sym_class; | |
1825 | char *class_name = type_name_no_tag (t); | |
d34d6f75 JK |
1826 | /* Ignore this class if it doesn't have a name. This is ugly, but |
1827 | unless we figure out how to get the physname without the name of | |
1828 | the class, then the loop can't do any good. */ | |
bd5635a1 RP |
1829 | if (class_name |
1830 | && (sym_class = lookup_symbol (class_name, | |
1831 | (struct block *)NULL, | |
1832 | STRUCT_NAMESPACE, | |
1833 | (int *)NULL, | |
1834 | (struct symtab **)NULL))) | |
1835 | { | |
1836 | int method_counter; | |
940d5967 | 1837 | /* FIXME: Shouldn't this just be CHECK_TYPEDEF (t)? */ |
bd5635a1 RP |
1838 | t = SYMBOL_TYPE (sym_class); |
1839 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
1840 | method_counter >= 0; | |
1841 | --method_counter) | |
1842 | { | |
1843 | int field_counter; | |
1844 | struct fn_field *f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
bd5635a1 | 1845 | char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
d0cde99c PS |
1846 | char dem_opname[64]; |
1847 | ||
1848 | if (strncmp(method_name, "__", 2)==0 || | |
1849 | strncmp(method_name, "op", 2)==0 || | |
1850 | strncmp(method_name, "type", 4)==0 ) | |
1851 | { | |
1852 | if (cplus_demangle_opname(method_name, dem_opname, DMGL_ANSI)) | |
1853 | method_name = dem_opname; | |
1854 | else if (cplus_demangle_opname(method_name, dem_opname, 0)) | |
1855 | method_name = dem_opname; | |
1856 | } | |
2e4964ad | 1857 | if (STREQ (name, method_name)) |
bd5635a1 RP |
1858 | /* Find all the fields with that name. */ |
1859 | for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
1860 | field_counter >= 0; | |
1861 | --field_counter) | |
1862 | { | |
1863 | char *phys_name; | |
7e258d18 | 1864 | if (TYPE_FN_FIELD_STUB (f, field_counter)) |
bd5635a1 RP |
1865 | check_stub_method (t, method_counter, field_counter); |
1866 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
ca6a826d PS |
1867 | /* Destructor is handled by caller, dont add it to the list */ |
1868 | if (DESTRUCTOR_PREFIX_P (phys_name)) | |
1869 | continue; | |
d34d6f75 | 1870 | |
bd5635a1 | 1871 | sym_arr[i1] = lookup_symbol (phys_name, |
a46d92a7 | 1872 | NULL, VAR_NAMESPACE, |
bd5635a1 RP |
1873 | (int *) NULL, |
1874 | (struct symtab **) NULL); | |
a46d92a7 PS |
1875 | if (sym_arr[i1]) |
1876 | i1++; | |
2cd99985 PB |
1877 | else |
1878 | { | |
199b2450 TL |
1879 | fputs_filtered("(Cannot find method ", gdb_stdout); |
1880 | fprintf_symbol_filtered (gdb_stdout, phys_name, | |
d0cde99c PS |
1881 | language_cplus, |
1882 | DMGL_PARAMS | DMGL_ANSI); | |
199b2450 | 1883 | fputs_filtered(" - possibly inlined.)\n", gdb_stdout); |
2cd99985 | 1884 | } |
bd5635a1 RP |
1885 | } |
1886 | } | |
1887 | } | |
d34d6f75 JK |
1888 | |
1889 | /* Only search baseclasses if there is no match yet, since names in | |
1890 | derived classes override those in baseclasses. | |
1891 | ||
1892 | FIXME: The above is not true; it is only true of member functions | |
1893 | if they have the same number of arguments (??? - section 13.1 of the | |
1894 | ARM says the function members are not in the same scope but doesn't | |
1895 | really spell out the rules in a way I understand. In any case, if | |
1896 | the number of arguments differ this is a case in which we can overload | |
1897 | rather than hiding without any problem, and gcc 2.4.5 does overload | |
1898 | rather than hiding in this case). */ | |
1899 | ||
bd5635a1 RP |
1900 | if (i1) |
1901 | return i1; | |
1902 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) | |
1903 | i1 += find_methods(TYPE_BASECLASS(t, ibase), name, | |
2e4964ad | 1904 | sym_arr + i1); |
bd5635a1 RP |
1905 | return i1; |
1906 | } | |
1907 | ||
6f87ec4a PS |
1908 | /* Helper function for decode_line_1. |
1909 | Build a canonical line spec in CANONICAL if it is non-NULL and if | |
1910 | the SAL has a symtab. | |
1911 | If SYMNAME is non-NULL the canonical line spec is `filename:symname'. | |
1912 | If SYMNAME is NULL the line number from SAL is used and the canonical | |
1913 | line spec is `filename:linenum'. */ | |
1914 | ||
1915 | static void | |
1916 | build_canonical_line_spec (sal, symname, canonical) | |
1917 | struct symtab_and_line *sal; | |
1918 | char *symname; | |
1919 | char ***canonical; | |
1920 | { | |
1921 | char **canonical_arr; | |
1922 | char *canonical_name; | |
1923 | char *filename; | |
1924 | struct symtab *s = sal->symtab; | |
1925 | ||
1926 | if (s == (struct symtab *)NULL | |
1927 | || s->filename == (char *)NULL | |
1928 | || canonical == (char ***)NULL) | |
1929 | return; | |
1930 | ||
1931 | canonical_arr = (char **) xmalloc (sizeof (char *)); | |
1932 | *canonical = canonical_arr; | |
1933 | ||
1934 | filename = s->filename; | |
1935 | if (symname != NULL) | |
1936 | { | |
1937 | canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2); | |
1938 | sprintf (canonical_name, "%s:%s", filename, symname); | |
1939 | } | |
1940 | else | |
1941 | { | |
1942 | canonical_name = xmalloc (strlen (filename) + 30); | |
1943 | sprintf (canonical_name, "%s:%d", filename, sal->line); | |
1944 | } | |
1945 | canonical_arr[0] = canonical_name; | |
1946 | } | |
1947 | ||
bd5635a1 RP |
1948 | /* Parse a string that specifies a line number. |
1949 | Pass the address of a char * variable; that variable will be | |
1950 | advanced over the characters actually parsed. | |
1951 | ||
1952 | The string can be: | |
1953 | ||
1954 | LINENUM -- that line number in current file. PC returned is 0. | |
1955 | FILE:LINENUM -- that line in that file. PC returned is 0. | |
1956 | FUNCTION -- line number of openbrace of that function. | |
1957 | PC returned is the start of the function. | |
1958 | VARIABLE -- line number of definition of that variable. | |
1959 | PC returned is 0. | |
1960 | FILE:FUNCTION -- likewise, but prefer functions in that file. | |
1961 | *EXPR -- line in which address EXPR appears. | |
1962 | ||
cba0d141 | 1963 | FUNCTION may be an undebuggable function found in minimal symbol table. |
bd5635a1 RP |
1964 | |
1965 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
76212295 PS |
1966 | of real code inside a function when a function is specified, and it is |
1967 | not OK to specify a variable or type to get its line number. | |
bd5635a1 RP |
1968 | |
1969 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
1970 | It defaults to current_source_symtab. | |
1971 | DEFAULT_LINE specifies the line number to use for relative | |
1972 | line numbers (that start with signs). Defaults to current_source_line. | |
6f87ec4a PS |
1973 | If CANONICAL is non-NULL, store an array of strings containing the canonical |
1974 | line specs there if necessary. Currently overloaded member functions and | |
1975 | line numbers or static functions without a filename yield a canonical | |
1976 | line spec. The array and the line spec strings are allocated on the heap, | |
1977 | it is the callers responsibility to free them. | |
bd5635a1 RP |
1978 | |
1979 | Note that it is possible to return zero for the symtab | |
1980 | if no file is validly specified. Callers must check that. | |
1981 | Also, the line number returned may be invalid. */ | |
1982 | ||
dbdf5a2a JK |
1983 | /* We allow single quotes in various places. This is a hideous |
1984 | kludge, which exists because the completer can't yet deal with the | |
1985 | lack of single quotes. FIXME: write a linespec_completer which we | |
1986 | can use as appropriate instead of make_symbol_completion_list. */ | |
1987 | ||
bd5635a1 | 1988 | struct symtabs_and_lines |
6f87ec4a | 1989 | decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical) |
bd5635a1 RP |
1990 | char **argptr; |
1991 | int funfirstline; | |
1992 | struct symtab *default_symtab; | |
1993 | int default_line; | |
6f87ec4a | 1994 | char ***canonical; |
bd5635a1 | 1995 | { |
bd5635a1 | 1996 | struct symtabs_and_lines values; |
c1878f87 SG |
1997 | #ifdef HPPA_COMPILER_BUG |
1998 | /* FIXME: The native HP 9000/700 compiler has a bug which appears | |
1999 | when optimizing this file with target i960-vxworks. I haven't | |
2000 | been able to construct a simple test case. The problem is that | |
2001 | in the second call to SKIP_PROLOGUE below, the compiler somehow | |
2002 | does not realize that the statement val = find_pc_line (...) will | |
2003 | change the values of the fields of val. It extracts the elements | |
2004 | into registers at the top of the block, and does not update the | |
2005 | registers after the call to find_pc_line. You can check this by | |
2006 | inserting a printf at the end of find_pc_line to show what values | |
2007 | it is returning for val.pc and val.end and another printf after | |
2008 | the call to see what values the function actually got (remember, | |
2009 | this is compiling with cc -O, with this patch removed). You can | |
2010 | also examine the assembly listing: search for the second call to | |
2011 | skip_prologue; the LDO statement before the next call to | |
2012 | find_pc_line loads the address of the structure which | |
2013 | find_pc_line will return; if there is a LDW just before the LDO, | |
2014 | which fetches an element of the structure, then the compiler | |
2015 | still has the bug. | |
2016 | ||
2017 | Setting val to volatile avoids the problem. We must undef | |
2018 | volatile, because the HPPA native compiler does not define | |
2019 | __STDC__, although it does understand volatile, and so volatile | |
2020 | will have been defined away in defs.h. */ | |
2021 | #undef volatile | |
2022 | volatile struct symtab_and_line val; | |
2023 | #define volatile /*nothing*/ | |
2024 | #else | |
bd5635a1 | 2025 | struct symtab_and_line val; |
c1878f87 | 2026 | #endif |
bd5635a1 | 2027 | register char *p, *p1; |
1c95d7ab JK |
2028 | char *q, *pp; |
2029 | #if 0 | |
2030 | char *q1; | |
2031 | #endif | |
bd5635a1 RP |
2032 | register struct symtab *s; |
2033 | ||
2034 | register struct symbol *sym; | |
2035 | /* The symtab that SYM was found in. */ | |
2036 | struct symtab *sym_symtab; | |
2037 | ||
2038 | register CORE_ADDR pc; | |
cba0d141 | 2039 | register struct minimal_symbol *msymbol; |
bd5635a1 RP |
2040 | char *copy; |
2041 | struct symbol *sym_class; | |
2042 | int i1; | |
7e6deb7a | 2043 | int is_quoted, has_parens; |
bd5635a1 RP |
2044 | struct symbol **sym_arr; |
2045 | struct type *t; | |
f70be3e4 JG |
2046 | char *saved_arg = *argptr; |
2047 | extern char *gdb_completer_quote_characters; | |
bd5635a1 | 2048 | |
07422705 PS |
2049 | INIT_SAL (&val); /* initialize to zeroes */ |
2050 | ||
bd5635a1 RP |
2051 | /* Defaults have defaults. */ |
2052 | ||
2053 | if (default_symtab == 0) | |
2054 | { | |
2055 | default_symtab = current_source_symtab; | |
2056 | default_line = current_source_line; | |
2057 | } | |
2058 | ||
8050a57b | 2059 | /* See if arg is *PC */ |
bd5635a1 | 2060 | |
8050a57b | 2061 | if (**argptr == '*') |
f70be3e4 | 2062 | { |
76212295 | 2063 | (*argptr)++; |
bd5635a1 RP |
2064 | pc = parse_and_eval_address_1 (argptr); |
2065 | values.sals = (struct symtab_and_line *) | |
2066 | xmalloc (sizeof (struct symtab_and_line)); | |
2067 | values.nelts = 1; | |
2068 | values.sals[0] = find_pc_line (pc, 0); | |
27f1958c | 2069 | values.sals[0].pc = pc; |
bd5635a1 RP |
2070 | return values; |
2071 | } | |
2072 | ||
2073 | /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */ | |
2074 | ||
8050a57b | 2075 | s = NULL; |
9b041f69 PS |
2076 | is_quoted = (**argptr |
2077 | && strchr (gdb_completer_quote_characters, **argptr) != NULL); | |
2078 | has_parens = ((pp = strchr (*argptr, '(')) != NULL | |
2079 | && (pp = strchr (pp, ')')) != NULL); | |
bd5635a1 RP |
2080 | |
2081 | for (p = *argptr; *p; p++) | |
2082 | { | |
7e6deb7a KH |
2083 | if (p[0] == '<') |
2084 | { | |
76212295 | 2085 | while(++p && *p != '>'); |
7e6deb7a KH |
2086 | if (!p) |
2087 | { | |
a0cf4681 | 2088 | error ("non-matching '<' and '>' in command"); |
7e6deb7a KH |
2089 | } |
2090 | } | |
bd5635a1 RP |
2091 | if (p[0] == ':' || p[0] == ' ' || p[0] == '\t') |
2092 | break; | |
d719efc6 DP |
2093 | if (p[0] == '.' && strchr (p, ':') == NULL) /* Java qualified method. */ |
2094 | { | |
2095 | /* Find the *last* '.', since the others are package qualifiers. */ | |
2096 | for (p1 = p; *p1; p1++) | |
2097 | { | |
2098 | if (*p1 == '.') | |
2099 | p = p1; | |
2100 | } | |
2101 | break; | |
2102 | } | |
bd5635a1 RP |
2103 | } |
2104 | while (p[0] == ' ' || p[0] == '\t') p++; | |
2105 | ||
d719efc6 | 2106 | if ((p[0] == ':' || p[0] == '.') && !has_parens) |
bd5635a1 RP |
2107 | { |
2108 | ||
d719efc6 | 2109 | /* C++ or Java */ |
7e6deb7a | 2110 | if (is_quoted) *argptr = *argptr+1; |
d719efc6 | 2111 | if (p[0] == '.' || p[1] ==':') |
bd5635a1 RP |
2112 | { |
2113 | /* Extract the class name. */ | |
2114 | p1 = p; | |
2115 | while (p != *argptr && p[-1] == ' ') --p; | |
2116 | copy = (char *) alloca (p - *argptr + 1); | |
4ed3a9ea | 2117 | memcpy (copy, *argptr, p - *argptr); |
bd5635a1 RP |
2118 | copy[p - *argptr] = 0; |
2119 | ||
2120 | /* Discard the class name from the arg. */ | |
d719efc6 | 2121 | p = p1 + (p1[0] == ':' ? 2 : 1); |
bd5635a1 RP |
2122 | while (*p == ' ' || *p == '\t') p++; |
2123 | *argptr = p; | |
2124 | ||
2125 | sym_class = lookup_symbol (copy, 0, STRUCT_NAMESPACE, 0, | |
2126 | (struct symtab **)NULL); | |
2127 | ||
2128 | if (sym_class && | |
940d5967 PB |
2129 | (t = check_typedef (SYMBOL_TYPE (sym_class)), |
2130 | (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
2131 | || TYPE_CODE (t) == TYPE_CODE_UNION))) | |
bd5635a1 RP |
2132 | { |
2133 | /* Arg token is not digits => try it as a function name | |
d0cde99c | 2134 | Find the next token(everything up to end or next blank). */ |
9b041f69 PS |
2135 | if (**argptr |
2136 | && strchr (gdb_completer_quote_characters, **argptr) != NULL) | |
d0cde99c PS |
2137 | { |
2138 | p = skip_quoted(*argptr); | |
2139 | *argptr = *argptr + 1; | |
2140 | } | |
2141 | else | |
2142 | { | |
2143 | p = *argptr; | |
2144 | while (*p && *p!=' ' && *p!='\t' && *p!=',' && *p!=':') p++; | |
2145 | } | |
2146 | /* | |
d96b54ea | 2147 | q = operator_chars (*argptr, &q1); |
d96b54ea JK |
2148 | if (q1 - q) |
2149 | { | |
2cd99985 PB |
2150 | char *opname; |
2151 | char *tmp = alloca (q1 - q + 1); | |
2152 | memcpy (tmp, q, q1 - q); | |
2153 | tmp[q1 - q] = '\0'; | |
8050a57b | 2154 | opname = cplus_mangle_opname (tmp, DMGL_ANSI); |
2cd99985 | 2155 | if (opname == NULL) |
f70be3e4 | 2156 | { |
a0cf4681 | 2157 | error_begin (); |
1c95d7ab | 2158 | printf_filtered ("no mangling for \"%s\"\n", tmp); |
f70be3e4 | 2159 | cplusplus_hint (saved_arg); |
f1ed4330 | 2160 | return_to_top_level (RETURN_ERROR); |
f70be3e4 | 2161 | } |
2cd99985 PB |
2162 | copy = (char*) alloca (3 + strlen(opname)); |
2163 | sprintf (copy, "__%s", opname); | |
d96b54ea JK |
2164 | p = q1; |
2165 | } | |
2166 | else | |
d0cde99c | 2167 | */ |
d96b54ea | 2168 | { |
d0cde99c | 2169 | copy = (char *) alloca (p - *argptr + 1 ); |
4ed3a9ea | 2170 | memcpy (copy, *argptr, p - *argptr); |
d96b54ea | 2171 | copy[p - *argptr] = '\0'; |
9b041f69 PS |
2172 | if (p != *argptr |
2173 | && copy[p - *argptr - 1] | |
2174 | && strchr (gdb_completer_quote_characters, | |
2175 | copy[p - *argptr - 1]) != NULL) | |
2176 | copy[p - *argptr - 1] = '\0'; | |
d96b54ea | 2177 | } |
bd5635a1 RP |
2178 | |
2179 | /* no line number may be specified */ | |
2180 | while (*p == ' ' || *p == '\t') p++; | |
2181 | *argptr = p; | |
2182 | ||
2183 | sym = 0; | |
2184 | i1 = 0; /* counter for the symbol array */ | |
2b576293 C |
2185 | sym_arr = (struct symbol **) alloca(total_number_of_methods (t) |
2186 | * sizeof(struct symbol *)); | |
bd5635a1 | 2187 | |
a46d92a7 | 2188 | if (destructor_name_p (copy, t)) |
bd5635a1 | 2189 | { |
a46d92a7 PS |
2190 | /* Destructors are a special case. */ |
2191 | int m_index, f_index; | |
2192 | ||
2193 | if (get_destructor_fn_field (t, &m_index, &f_index)) | |
ca6a826d | 2194 | { |
a46d92a7 PS |
2195 | struct fn_field *f = TYPE_FN_FIELDLIST1 (t, m_index); |
2196 | ||
2197 | sym_arr[i1] = | |
2198 | lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, f_index), | |
2199 | NULL, VAR_NAMESPACE, (int *) NULL, | |
2200 | (struct symtab **)NULL); | |
2201 | if (sym_arr[i1]) | |
2202 | i1++; | |
ca6a826d | 2203 | } |
bd5635a1 RP |
2204 | } |
2205 | else | |
2e4964ad | 2206 | i1 = find_methods (t, copy, sym_arr); |
bd5635a1 RP |
2207 | if (i1 == 1) |
2208 | { | |
2209 | /* There is exactly one field with that name. */ | |
2210 | sym = sym_arr[0]; | |
2211 | ||
2212 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
2213 | { | |
211b564e PS |
2214 | values.sals = (struct symtab_and_line *) |
2215 | xmalloc (sizeof (struct symtab_and_line)); | |
bd5635a1 | 2216 | values.nelts = 1; |
76212295 PS |
2217 | values.sals[0] = find_function_start_sal (sym, |
2218 | funfirstline); | |
bd5635a1 RP |
2219 | } |
2220 | else | |
2221 | { | |
2222 | values.nelts = 0; | |
2223 | } | |
2224 | return values; | |
2225 | } | |
2226 | if (i1 > 0) | |
2227 | { | |
2228 | /* There is more than one field with that name | |
2229 | (overloaded). Ask the user which one to use. */ | |
6f87ec4a | 2230 | return decode_line_2 (sym_arr, i1, funfirstline, canonical); |
bd5635a1 RP |
2231 | } |
2232 | else | |
d96b54ea JK |
2233 | { |
2234 | char *tmp; | |
2235 | ||
2236 | if (OPNAME_PREFIX_P (copy)) | |
2237 | { | |
2238 | tmp = (char *)alloca (strlen (copy+3) + 9); | |
2239 | strcpy (tmp, "operator "); | |
2240 | strcat (tmp, copy+3); | |
2241 | } | |
2242 | else | |
2243 | tmp = copy; | |
a0cf4681 | 2244 | error_begin (); |
0e2a896c | 2245 | if (tmp[0] == '~') |
1c95d7ab | 2246 | printf_filtered |
a0cf4681 JK |
2247 | ("the class `%s' does not have destructor defined\n", |
2248 | SYMBOL_SOURCE_NAME(sym_class)); | |
0e2a896c | 2249 | else |
1c95d7ab | 2250 | printf_filtered |
a0cf4681 JK |
2251 | ("the class %s does not have any method named %s\n", |
2252 | SYMBOL_SOURCE_NAME(sym_class), tmp); | |
f70be3e4 | 2253 | cplusplus_hint (saved_arg); |
f1ed4330 | 2254 | return_to_top_level (RETURN_ERROR); |
d96b54ea | 2255 | } |
bd5635a1 RP |
2256 | } |
2257 | else | |
f70be3e4 | 2258 | { |
a0cf4681 | 2259 | error_begin (); |
f70be3e4 | 2260 | /* The quotes are important if copy is empty. */ |
1c95d7ab | 2261 | printf_filtered |
a0cf4681 | 2262 | ("can't find class, struct, or union named \"%s\"\n", copy); |
f70be3e4 | 2263 | cplusplus_hint (saved_arg); |
f1ed4330 | 2264 | return_to_top_level (RETURN_ERROR); |
f70be3e4 | 2265 | } |
bd5635a1 RP |
2266 | } |
2267 | /* end of C++ */ | |
2268 | ||
2269 | ||
2270 | /* Extract the file name. */ | |
2271 | p1 = p; | |
2272 | while (p != *argptr && p[-1] == ' ') --p; | |
58050209 | 2273 | copy = (char *) alloca (p - *argptr + 1); |
4ed3a9ea | 2274 | memcpy (copy, *argptr, p - *argptr); |
58050209 | 2275 | copy[p - *argptr] = 0; |
bd5635a1 RP |
2276 | |
2277 | /* Find that file's data. */ | |
2278 | s = lookup_symtab (copy); | |
2279 | if (s == 0) | |
2280 | { | |
cba0d141 | 2281 | if (!have_full_symbols () && !have_partial_symbols ()) |
bd5635a1 RP |
2282 | error (no_symtab_msg); |
2283 | error ("No source file named %s.", copy); | |
2284 | } | |
2285 | ||
2286 | /* Discard the file name from the arg. */ | |
2287 | p = p1 + 1; | |
2288 | while (*p == ' ' || *p == '\t') p++; | |
2289 | *argptr = p; | |
2290 | } | |
2291 | ||
2292 | /* S is specified file's symtab, or 0 if no file specified. | |
2293 | arg no longer contains the file name. */ | |
2294 | ||
2295 | /* Check whether arg is all digits (and sign) */ | |
2296 | ||
d0cde99c PS |
2297 | q = *argptr; |
2298 | if (*q == '-' || *q == '+') q++; | |
2299 | while (*q >= '0' && *q <= '9') | |
2300 | q++; | |
bd5635a1 | 2301 | |
d0cde99c | 2302 | if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ',')) |
bd5635a1 RP |
2303 | { |
2304 | /* We found a token consisting of all digits -- at least one digit. */ | |
2305 | enum sign {none, plus, minus} sign = none; | |
2306 | ||
6f87ec4a PS |
2307 | /* We might need a canonical line spec if no file was specified. */ |
2308 | int need_canonical = (s == 0) ? 1 : 0; | |
2309 | ||
bd5635a1 RP |
2310 | /* This is where we need to make sure that we have good defaults. |
2311 | We must guarantee that this section of code is never executed | |
2312 | when we are called with just a function name, since | |
2313 | select_source_symtab calls us with such an argument */ | |
2314 | ||
2315 | if (s == 0 && default_symtab == 0) | |
2316 | { | |
bd5635a1 RP |
2317 | select_source_symtab (0); |
2318 | default_symtab = current_source_symtab; | |
2319 | default_line = current_source_line; | |
2320 | } | |
2321 | ||
2322 | if (**argptr == '+') | |
2323 | sign = plus, (*argptr)++; | |
2324 | else if (**argptr == '-') | |
2325 | sign = minus, (*argptr)++; | |
2326 | val.line = atoi (*argptr); | |
2327 | switch (sign) | |
2328 | { | |
2329 | case plus: | |
d0cde99c | 2330 | if (q == *argptr) |
bd5635a1 RP |
2331 | val.line = 5; |
2332 | if (s == 0) | |
2333 | val.line = default_line + val.line; | |
2334 | break; | |
2335 | case minus: | |
d0cde99c | 2336 | if (q == *argptr) |
bd5635a1 RP |
2337 | val.line = 15; |
2338 | if (s == 0) | |
2339 | val.line = default_line - val.line; | |
2340 | else | |
2341 | val.line = 1; | |
2342 | break; | |
2343 | case none: | |
2344 | break; /* No need to adjust val.line. */ | |
2345 | } | |
2346 | ||
d0cde99c PS |
2347 | while (*q == ' ' || *q == '\t') q++; |
2348 | *argptr = q; | |
bd5635a1 RP |
2349 | if (s == 0) |
2350 | s = default_symtab; | |
2351 | val.symtab = s; | |
2352 | val.pc = 0; | |
211b564e PS |
2353 | values.sals = (struct symtab_and_line *) |
2354 | xmalloc (sizeof (struct symtab_and_line)); | |
bd5635a1 RP |
2355 | values.sals[0] = val; |
2356 | values.nelts = 1; | |
6f87ec4a PS |
2357 | if (need_canonical) |
2358 | build_canonical_line_spec (values.sals, NULL, canonical); | |
bd5635a1 RP |
2359 | return values; |
2360 | } | |
2361 | ||
2362 | /* Arg token is not digits => try it as a variable name | |
2363 | Find the next token (everything up to end or next whitespace). */ | |
2cd99985 | 2364 | |
2b576293 C |
2365 | if (**argptr == '$') /* Convenience variable */ |
2366 | p = skip_quoted (*argptr + 1); | |
2367 | else if (is_quoted) | |
7e6deb7a KH |
2368 | { |
2369 | p = skip_quoted (*argptr); | |
2370 | if (p[-1] != '\'') | |
2371 | error ("Unmatched single quote."); | |
2372 | } | |
2373 | else if (has_parens) | |
2374 | { | |
2375 | p = pp+1; | |
2376 | } | |
d0cde99c PS |
2377 | else |
2378 | { | |
2379 | p = skip_quoted(*argptr); | |
2380 | } | |
2381 | ||
bd5635a1 | 2382 | copy = (char *) alloca (p - *argptr + 1); |
4ed3a9ea | 2383 | memcpy (copy, *argptr, p - *argptr); |
f70be3e4 | 2384 | copy[p - *argptr] = '\0'; |
e3d6ec4a | 2385 | if (p != *argptr |
9b041f69 PS |
2386 | && copy[0] |
2387 | && copy[0] == copy [p - *argptr - 1] | |
f70be3e4 JG |
2388 | && strchr (gdb_completer_quote_characters, copy[0]) != NULL) |
2389 | { | |
f70be3e4 JG |
2390 | copy [p - *argptr - 1] = '\0'; |
2391 | copy++; | |
f70be3e4 | 2392 | } |
bd5635a1 RP |
2393 | while (*p == ' ' || *p == '\t') p++; |
2394 | *argptr = p; | |
2395 | ||
2b576293 C |
2396 | /* See if it's a convenience variable */ |
2397 | ||
2398 | if (*copy == '$') | |
2399 | { | |
2400 | value_ptr valx; | |
2401 | int need_canonical = (s == 0) ? 1 : 0; | |
2402 | ||
2403 | valx = value_of_internalvar (lookup_internalvar (copy + 1)); | |
2404 | if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT) | |
2405 | error ("Convenience variables used in line specs must have integer values."); | |
2406 | ||
2407 | val.symtab = s ? s : default_symtab; | |
2408 | val.line = value_as_long (valx); | |
2409 | val.pc = 0; | |
2410 | ||
2411 | values.sals = (struct symtab_and_line *)xmalloc (sizeof val); | |
2412 | values.sals[0] = val; | |
2413 | values.nelts = 1; | |
2414 | ||
2415 | if (need_canonical) | |
2416 | build_canonical_line_spec (values.sals, NULL, canonical); | |
2417 | ||
2418 | return values; | |
2419 | } | |
2420 | ||
2421 | ||
bd5635a1 RP |
2422 | /* Look up that token as a variable. |
2423 | If file specified, use that file's per-file block to start with. */ | |
2424 | ||
2425 | sym = lookup_symbol (copy, | |
3ba6a043 | 2426 | (s ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK) |
bd5635a1 RP |
2427 | : get_selected_block ()), |
2428 | VAR_NAMESPACE, 0, &sym_symtab); | |
2429 | ||
2430 | if (sym != NULL) | |
2431 | { | |
2432 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) | |
2433 | { | |
2434 | /* Arg is the name of a function */ | |
211b564e PS |
2435 | values.sals = (struct symtab_and_line *) |
2436 | xmalloc (sizeof (struct symtab_and_line)); | |
76212295 | 2437 | values.sals[0] = find_function_start_sal (sym, funfirstline); |
bd5635a1 | 2438 | values.nelts = 1; |
ad0a2521 JK |
2439 | |
2440 | /* Don't use the SYMBOL_LINE; if used at all it points to | |
2441 | the line containing the parameters or thereabouts, not | |
2442 | the first line of code. */ | |
2443 | ||
2444 | /* We might need a canonical line spec if it is a static | |
2445 | function. */ | |
6f87ec4a PS |
2446 | if (s == 0) |
2447 | { | |
2448 | struct blockvector *bv = BLOCKVECTOR (sym_symtab); | |
2449 | struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
2450 | if (lookup_block_symbol (b, copy, VAR_NAMESPACE) != NULL) | |
2451 | build_canonical_line_spec (values.sals, copy, canonical); | |
2452 | } | |
bd5635a1 RP |
2453 | return values; |
2454 | } | |
76212295 | 2455 | else |
bd5635a1 | 2456 | { |
76212295 PS |
2457 | if (funfirstline) |
2458 | error ("\"%s\" is not a function", copy); | |
2459 | else if (SYMBOL_LINE (sym) != 0) | |
2460 | { | |
2461 | /* We know its line number. */ | |
2462 | values.sals = (struct symtab_and_line *) | |
2463 | xmalloc (sizeof (struct symtab_and_line)); | |
2464 | values.nelts = 1; | |
2465 | memset (&values.sals[0], 0, sizeof (values.sals[0])); | |
2466 | values.sals[0].symtab = sym_symtab; | |
2467 | values.sals[0].line = SYMBOL_LINE (sym); | |
2468 | return values; | |
2469 | } | |
2470 | else | |
2471 | /* This can happen if it is compiled with a compiler which doesn't | |
2472 | put out line numbers for variables. */ | |
2473 | /* FIXME: Shouldn't we just set .line and .symtab to zero | |
2474 | and return? For example, "info line foo" could print | |
2475 | the address. */ | |
2476 | error ("Line number not known for symbol \"%s\"", copy); | |
bd5635a1 | 2477 | } |
bd5635a1 RP |
2478 | } |
2479 | ||
2b576293 | 2480 | msymbol = lookup_minimal_symbol (copy, NULL, NULL); |
cba0d141 | 2481 | if (msymbol != NULL) |
bd5635a1 | 2482 | { |
211b564e PS |
2483 | val.pc = SYMBOL_VALUE_ADDRESS (msymbol); |
2484 | val.section = SYMBOL_BFD_SECTION (msymbol); | |
bd5635a1 | 2485 | if (funfirstline) |
2cacd1e3 PS |
2486 | { |
2487 | val.pc += FUNCTION_START_OFFSET; | |
2488 | SKIP_PROLOGUE (val.pc); | |
2489 | } | |
07422705 PS |
2490 | values.sals = (struct symtab_and_line *) |
2491 | xmalloc (sizeof (struct symtab_and_line)); | |
bd5635a1 RP |
2492 | values.sals[0] = val; |
2493 | values.nelts = 1; | |
2494 | return values; | |
2495 | } | |
2496 | ||
cba0d141 JG |
2497 | if (!have_full_symbols () && |
2498 | !have_partial_symbols () && !have_minimal_symbols ()) | |
997a978c JG |
2499 | error (no_symtab_msg); |
2500 | ||
f70be3e4 | 2501 | error ("Function \"%s\" not defined.", copy); |
bd5635a1 RP |
2502 | return values; /* for lint */ |
2503 | } | |
2504 | ||
2505 | struct symtabs_and_lines | |
2506 | decode_line_spec (string, funfirstline) | |
2507 | char *string; | |
2508 | int funfirstline; | |
2509 | { | |
2510 | struct symtabs_and_lines sals; | |
2511 | if (string == 0) | |
2512 | error ("Empty line specification."); | |
2513 | sals = decode_line_1 (&string, funfirstline, | |
6f87ec4a PS |
2514 | current_source_symtab, current_source_line, |
2515 | (char ***)NULL); | |
bd5635a1 RP |
2516 | if (*string) |
2517 | error ("Junk at end of line specification: %s", string); | |
2518 | return sals; | |
2519 | } | |
2520 | ||
6f87ec4a PS |
2521 | /* Given a list of NELTS symbols in SYM_ARR, return a list of lines to |
2522 | operate on (ask user if necessary). | |
2523 | If CANONICAL is non-NULL return a corresponding array of mangled names | |
2524 | as canonical line specs there. */ | |
2e4964ad | 2525 | |
cba0d141 | 2526 | static struct symtabs_and_lines |
6f87ec4a | 2527 | decode_line_2 (sym_arr, nelts, funfirstline, canonical) |
bd5635a1 RP |
2528 | struct symbol *sym_arr[]; |
2529 | int nelts; | |
2530 | int funfirstline; | |
6f87ec4a | 2531 | char ***canonical; |
bd5635a1 | 2532 | { |
bd5635a1 | 2533 | struct symtabs_and_lines values, return_values; |
cba0d141 | 2534 | char *args, *arg1; |
bd5635a1 RP |
2535 | int i; |
2536 | char *prompt; | |
2e4964ad | 2537 | char *symname; |
6f87ec4a PS |
2538 | struct cleanup *old_chain; |
2539 | char **canonical_arr = (char **)NULL; | |
bd5635a1 | 2540 | |
211b564e PS |
2541 | values.sals = (struct symtab_and_line *) |
2542 | alloca (nelts * sizeof(struct symtab_and_line)); | |
2543 | return_values.sals = (struct symtab_and_line *) | |
2544 | xmalloc (nelts * sizeof(struct symtab_and_line)); | |
6f87ec4a PS |
2545 | old_chain = make_cleanup (free, return_values.sals); |
2546 | ||
2547 | if (canonical) | |
2548 | { | |
2549 | canonical_arr = (char **) xmalloc (nelts * sizeof (char *)); | |
2550 | make_cleanup (free, canonical_arr); | |
2551 | memset (canonical_arr, 0, nelts * sizeof (char *)); | |
2552 | *canonical = canonical_arr; | |
2553 | } | |
bd5635a1 RP |
2554 | |
2555 | i = 0; | |
199b2450 | 2556 | printf_unfiltered("[0] cancel\n[1] all\n"); |
bd5635a1 RP |
2557 | while (i < nelts) |
2558 | { | |
07422705 PS |
2559 | INIT_SAL (&return_values.sals[i]); /* initialize to zeroes */ |
2560 | INIT_SAL (&values.sals[i]); | |
bd5635a1 RP |
2561 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) |
2562 | { | |
76212295 PS |
2563 | values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline); |
2564 | printf_unfiltered ("[%d] %s at %s:%d\n", | |
2565 | (i+2), | |
2566 | SYMBOL_SOURCE_NAME (sym_arr[i]), | |
2567 | values.sals[i].symtab->filename, | |
2568 | values.sals[i].line); | |
bd5635a1 | 2569 | } |
76212295 PS |
2570 | else |
2571 | printf_unfiltered ("?HERE\n"); | |
bd5635a1 RP |
2572 | i++; |
2573 | } | |
2574 | ||
2575 | if ((prompt = getenv ("PS2")) == NULL) | |
2576 | { | |
2577 | prompt = ">"; | |
2578 | } | |
199b2450 TL |
2579 | printf_unfiltered("%s ",prompt); |
2580 | gdb_flush(gdb_stdout); | |
bd5635a1 | 2581 | |
a0cf4681 | 2582 | args = command_line_input ((char *) NULL, 0, "overload-choice"); |
bd5635a1 | 2583 | |
6f87ec4a | 2584 | if (args == 0 || *args == 0) |
bd5635a1 RP |
2585 | error_no_arg ("one or more choice numbers"); |
2586 | ||
2587 | i = 0; | |
2588 | while (*args) | |
2589 | { | |
2590 | int num; | |
2591 | ||
2592 | arg1 = args; | |
2593 | while (*arg1 >= '0' && *arg1 <= '9') arg1++; | |
2594 | if (*arg1 && *arg1 != ' ' && *arg1 != '\t') | |
2595 | error ("Arguments must be choice numbers."); | |
2596 | ||
2597 | num = atoi (args); | |
2598 | ||
2599 | if (num == 0) | |
2600 | error ("cancelled"); | |
2601 | else if (num == 1) | |
2602 | { | |
6f87ec4a PS |
2603 | if (canonical_arr) |
2604 | { | |
2605 | for (i = 0; i < nelts; i++) | |
2606 | { | |
2607 | if (canonical_arr[i] == NULL) | |
2608 | { | |
2609 | symname = SYMBOL_NAME (sym_arr[i]); | |
2610 | canonical_arr[i] = savestring (symname, strlen (symname)); | |
2611 | } | |
2612 | } | |
2613 | } | |
4ed3a9ea FF |
2614 | memcpy (return_values.sals, values.sals, |
2615 | (nelts * sizeof(struct symtab_and_line))); | |
bd5635a1 | 2616 | return_values.nelts = nelts; |
6f87ec4a | 2617 | discard_cleanups (old_chain); |
bd5635a1 RP |
2618 | return return_values; |
2619 | } | |
2620 | ||
07422705 | 2621 | if (num >= nelts + 2) |
bd5635a1 | 2622 | { |
199b2450 | 2623 | printf_unfiltered ("No choice number %d.\n", num); |
bd5635a1 RP |
2624 | } |
2625 | else | |
2626 | { | |
2627 | num -= 2; | |
2628 | if (values.sals[num].pc) | |
2629 | { | |
6f87ec4a PS |
2630 | if (canonical_arr) |
2631 | { | |
2632 | symname = SYMBOL_NAME (sym_arr[num]); | |
2633 | make_cleanup (free, symname); | |
2634 | canonical_arr[i] = savestring (symname, strlen (symname)); | |
2635 | } | |
bd5635a1 RP |
2636 | return_values.sals[i++] = values.sals[num]; |
2637 | values.sals[num].pc = 0; | |
2638 | } | |
2639 | else | |
2640 | { | |
199b2450 | 2641 | printf_unfiltered ("duplicate request for %d ignored.\n", num); |
bd5635a1 RP |
2642 | } |
2643 | } | |
2644 | ||
2645 | args = arg1; | |
2646 | while (*args == ' ' || *args == '\t') args++; | |
2647 | } | |
2648 | return_values.nelts = i; | |
6f87ec4a | 2649 | discard_cleanups (old_chain); |
bd5635a1 RP |
2650 | return return_values; |
2651 | } | |
2652 | ||
bd5635a1 RP |
2653 | \f |
2654 | /* Slave routine for sources_info. Force line breaks at ,'s. | |
2655 | NAME is the name to print and *FIRST is nonzero if this is the first | |
2656 | name printed. Set *FIRST to zero. */ | |
2657 | static void | |
2658 | output_source_filename (name, first) | |
2659 | char *name; | |
2660 | int *first; | |
2661 | { | |
bd5635a1 RP |
2662 | /* Table of files printed so far. Since a single source file can |
2663 | result in several partial symbol tables, we need to avoid printing | |
2664 | it more than once. Note: if some of the psymtabs are read in and | |
2665 | some are not, it gets printed both under "Source files for which | |
2666 | symbols have been read" and "Source files for which symbols will | |
2667 | be read in on demand". I consider this a reasonable way to deal | |
2668 | with the situation. I'm not sure whether this can also happen for | |
2669 | symtabs; it doesn't hurt to check. */ | |
2670 | static char **tab = NULL; | |
2671 | /* Allocated size of tab in elements. | |
2672 | Start with one 256-byte block (when using GNU malloc.c). | |
2673 | 24 is the malloc overhead when range checking is in effect. */ | |
2674 | static int tab_alloc_size = (256 - 24) / sizeof (char *); | |
2675 | /* Current size of tab in elements. */ | |
2676 | static int tab_cur_size; | |
2677 | ||
2678 | char **p; | |
2679 | ||
2680 | if (*first) | |
2681 | { | |
2682 | if (tab == NULL) | |
2683 | tab = (char **) xmalloc (tab_alloc_size * sizeof (*tab)); | |
2684 | tab_cur_size = 0; | |
2685 | } | |
2686 | ||
2687 | /* Is NAME in tab? */ | |
2688 | for (p = tab; p < tab + tab_cur_size; p++) | |
2e4964ad | 2689 | if (STREQ (*p, name)) |
bd5635a1 RP |
2690 | /* Yes; don't print it again. */ |
2691 | return; | |
2692 | /* No; add it to tab. */ | |
2693 | if (tab_cur_size == tab_alloc_size) | |
2694 | { | |
2695 | tab_alloc_size *= 2; | |
cba0d141 | 2696 | tab = (char **) xrealloc ((char *) tab, tab_alloc_size * sizeof (*tab)); |
bd5635a1 RP |
2697 | } |
2698 | tab[tab_cur_size++] = name; | |
2699 | ||
2700 | if (*first) | |
2701 | { | |
bd5635a1 RP |
2702 | *first = 0; |
2703 | } | |
2704 | else | |
2705 | { | |
f70be3e4 | 2706 | printf_filtered (", "); |
bd5635a1 RP |
2707 | } |
2708 | ||
f70be3e4 | 2709 | wrap_here (""); |
199b2450 | 2710 | fputs_filtered (name, gdb_stdout); |
bd5635a1 RP |
2711 | } |
2712 | ||
2713 | static void | |
35a25840 SG |
2714 | sources_info (ignore, from_tty) |
2715 | char *ignore; | |
2716 | int from_tty; | |
bd5635a1 RP |
2717 | { |
2718 | register struct symtab *s; | |
2719 | register struct partial_symtab *ps; | |
cba0d141 | 2720 | register struct objfile *objfile; |
bd5635a1 RP |
2721 | int first; |
2722 | ||
cba0d141 | 2723 | if (!have_full_symbols () && !have_partial_symbols ()) |
bd5635a1 | 2724 | { |
3053b9f2 | 2725 | error (no_symtab_msg); |
bd5635a1 RP |
2726 | } |
2727 | ||
2728 | printf_filtered ("Source files for which symbols have been read in:\n\n"); | |
2729 | ||
2730 | first = 1; | |
35a25840 | 2731 | ALL_SYMTABS (objfile, s) |
cba0d141 | 2732 | { |
35a25840 | 2733 | output_source_filename (s -> filename, &first); |
cba0d141 | 2734 | } |
bd5635a1 RP |
2735 | printf_filtered ("\n\n"); |
2736 | ||
2737 | printf_filtered ("Source files for which symbols will be read in on demand:\n\n"); | |
2738 | ||
2739 | first = 1; | |
35a25840 | 2740 | ALL_PSYMTABS (objfile, ps) |
cba0d141 | 2741 | { |
35a25840 | 2742 | if (!ps->readin) |
cba0d141 | 2743 | { |
35a25840 | 2744 | output_source_filename (ps -> filename, &first); |
cba0d141 JG |
2745 | } |
2746 | } | |
bd5635a1 RP |
2747 | printf_filtered ("\n"); |
2748 | } | |
2749 | ||
2e4964ad | 2750 | /* List all symbols (if REGEXP is NULL) or all symbols matching REGEXP. |
3a16d640 JG |
2751 | If CLASS is zero, list all symbols except functions, type names, and |
2752 | constants (enums). | |
bd5635a1 RP |
2753 | If CLASS is 1, list only functions. |
2754 | If CLASS is 2, list only type names. | |
997a978c | 2755 | If CLASS is 3, list only method names. |
bd5635a1 RP |
2756 | |
2757 | BPT is non-zero if we should set a breakpoint at the functions | |
2758 | we find. */ | |
2759 | ||
2760 | static void | |
ae6d035d | 2761 | list_symbols (regexp, class, bpt, from_tty) |
bd5635a1 RP |
2762 | char *regexp; |
2763 | int class; | |
2764 | int bpt; | |
ae6d035d | 2765 | int from_tty; |
bd5635a1 RP |
2766 | { |
2767 | register struct symtab *s; | |
2768 | register struct partial_symtab *ps; | |
2769 | register struct blockvector *bv; | |
2770 | struct blockvector *prev_bv = 0; | |
2771 | register struct block *b; | |
2772 | register int i, j; | |
2773 | register struct symbol *sym; | |
b607efe7 | 2774 | struct partial_symbol **psym; |
cba0d141 JG |
2775 | struct objfile *objfile; |
2776 | struct minimal_symbol *msymbol; | |
35a25840 | 2777 | char *val; |
bd5635a1 RP |
2778 | static char *classnames[] |
2779 | = {"variable", "function", "type", "method"}; | |
2780 | int found_in_file = 0; | |
997a978c | 2781 | int found_misc = 0; |
cba0d141 JG |
2782 | static enum minimal_symbol_type types[] |
2783 | = {mst_data, mst_text, mst_abs, mst_unknown}; | |
2784 | static enum minimal_symbol_type types2[] | |
ae6d035d PS |
2785 | = {mst_bss, mst_file_text, mst_abs, mst_unknown}; |
2786 | static enum minimal_symbol_type types3[] | |
2787 | = {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown}; | |
2788 | static enum minimal_symbol_type types4[] | |
2789 | = {mst_file_bss, mst_text, mst_abs, mst_unknown}; | |
cba0d141 JG |
2790 | enum minimal_symbol_type ourtype = types[class]; |
2791 | enum minimal_symbol_type ourtype2 = types2[class]; | |
ae6d035d PS |
2792 | enum minimal_symbol_type ourtype3 = types3[class]; |
2793 | enum minimal_symbol_type ourtype4 = types4[class]; | |
bd5635a1 | 2794 | |
2e4964ad | 2795 | if (regexp != NULL) |
2cd99985 PB |
2796 | { |
2797 | /* Make sure spacing is right for C++ operators. | |
2798 | This is just a courtesy to make the matching less sensitive | |
2799 | to how many spaces the user leaves between 'operator' | |
2800 | and <TYPENAME> or <OPERATOR>. */ | |
2801 | char *opend; | |
2802 | char *opname = operator_chars (regexp, &opend); | |
2803 | if (*opname) | |
2804 | { | |
2805 | int fix = -1; /* -1 means ok; otherwise number of spaces needed. */ | |
2806 | if (isalpha(*opname) || *opname == '_' || *opname == '$') | |
2807 | { | |
2808 | /* There should 1 space between 'operator' and 'TYPENAME'. */ | |
2809 | if (opname[-1] != ' ' || opname[-2] == ' ') | |
2810 | fix = 1; | |
2811 | } | |
2812 | else | |
2813 | { | |
2814 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ | |
2815 | if (opname[-1] == ' ') | |
2816 | fix = 0; | |
2817 | } | |
2818 | /* If wrong number of spaces, fix it. */ | |
2819 | if (fix >= 0) | |
2820 | { | |
2821 | char *tmp = (char*) alloca(opend-opname+10); | |
2822 | sprintf(tmp, "operator%.*s%s", fix, " ", opname); | |
2823 | regexp = tmp; | |
2824 | } | |
2825 | } | |
2826 | ||
2827 | if (0 != (val = re_comp (regexp))) | |
2828 | error ("Invalid regexp (%s): %s", val, regexp); | |
2829 | } | |
bd5635a1 | 2830 | |
cba0d141 | 2831 | /* Search through the partial symtabs *first* for all symbols |
bd5635a1 RP |
2832 | matching the regexp. That way we don't have to reproduce all of |
2833 | the machinery below. */ | |
bd5635a1 | 2834 | |
35a25840 | 2835 | ALL_PSYMTABS (objfile, ps) |
cba0d141 | 2836 | { |
b607efe7 | 2837 | struct partial_symbol **bound, **gbound, **sbound; |
35a25840 SG |
2838 | int keep_going = 1; |
2839 | ||
2840 | if (ps->readin) continue; | |
2841 | ||
2842 | gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms; | |
2843 | sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms; | |
2844 | bound = gbound; | |
2845 | ||
2846 | /* Go through all of the symbols stored in a partial | |
2847 | symtab in one loop. */ | |
2848 | psym = objfile->global_psymbols.list + ps->globals_offset; | |
2849 | while (keep_going) | |
bd5635a1 | 2850 | { |
35a25840 | 2851 | if (psym >= bound) |
bd5635a1 | 2852 | { |
35a25840 | 2853 | if (bound == gbound && ps->n_static_syms != 0) |
bd5635a1 | 2854 | { |
35a25840 SG |
2855 | psym = objfile->static_psymbols.list + ps->statics_offset; |
2856 | bound = sbound; | |
bd5635a1 RP |
2857 | } |
2858 | else | |
35a25840 SG |
2859 | keep_going = 0; |
2860 | continue; | |
2861 | } | |
2862 | else | |
2863 | { | |
2864 | QUIT; | |
2865 | ||
2866 | /* If it would match (logic taken from loop below) | |
2867 | load the file and go on to the next one */ | |
b607efe7 FF |
2868 | if ((regexp == NULL || SYMBOL_MATCHES_REGEXP (*psym)) |
2869 | && ((class == 0 && SYMBOL_CLASS (*psym) != LOC_TYPEDEF | |
2870 | && SYMBOL_CLASS (*psym) != LOC_BLOCK) | |
2871 | || (class == 1 && SYMBOL_CLASS (*psym) == LOC_BLOCK) | |
2872 | || (class == 2 && SYMBOL_CLASS (*psym) == LOC_TYPEDEF) | |
2873 | || (class == 3 && SYMBOL_CLASS (*psym) == LOC_BLOCK))) | |
bd5635a1 | 2874 | { |
4ed3a9ea | 2875 | PSYMTAB_TO_SYMTAB(ps); |
35a25840 | 2876 | keep_going = 0; |
bd5635a1 RP |
2877 | } |
2878 | } | |
35a25840 | 2879 | psym++; |
bd5635a1 RP |
2880 | } |
2881 | } | |
2882 | ||
76212295 PS |
2883 | /* Here, we search through the minimal symbol tables for functions |
2884 | and variables that match, and force their symbols to be read. | |
2885 | This is in particular necessary for demangled variable names, | |
2886 | which are no longer put into the partial symbol tables. | |
2887 | The symbol will then be found during the scan of symtabs below. | |
2888 | ||
2889 | For functions, find_pc_symtab should succeed if we have debug info | |
2890 | for the function, for variables we have to call lookup_symbol | |
2891 | to determine if the variable has debug info. | |
2892 | If the lookup fails, set found_misc so that we will rescan to print | |
2893 | any matching symbols without debug info. | |
2894 | */ | |
997a978c | 2895 | |
76212295 | 2896 | if (class == 0 || class == 1) |
cba0d141 | 2897 | { |
35a25840 | 2898 | ALL_MSYMBOLS (objfile, msymbol) |
cba0d141 | 2899 | { |
2e4964ad | 2900 | if (MSYMBOL_TYPE (msymbol) == ourtype || |
ae6d035d PS |
2901 | MSYMBOL_TYPE (msymbol) == ourtype2 || |
2902 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
2903 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
cba0d141 | 2904 | { |
2e4964ad | 2905 | if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol)) |
cba0d141 | 2906 | { |
2e4964ad | 2907 | if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))) |
cba0d141 | 2908 | { |
76212295 PS |
2909 | if (class == 1 |
2910 | || lookup_symbol (SYMBOL_NAME (msymbol), | |
2911 | (struct block *) NULL, | |
2912 | VAR_NAMESPACE, | |
2913 | 0, (struct symtab **) NULL) == NULL) | |
2914 | found_misc = 1; | |
cba0d141 JG |
2915 | } |
2916 | } | |
2917 | } | |
2918 | } | |
bd5635a1 RP |
2919 | } |
2920 | ||
2921 | /* Printout here so as to get after the "Reading in symbols" | |
2922 | messages which will be generated above. */ | |
2923 | if (!bpt) | |
2924 | printf_filtered (regexp | |
2925 | ? "All %ss matching regular expression \"%s\":\n" | |
2926 | : "All defined %ss:\n", | |
2927 | classnames[class], | |
2928 | regexp); | |
2929 | ||
35a25840 | 2930 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 2931 | { |
35a25840 SG |
2932 | found_in_file = 0; |
2933 | bv = BLOCKVECTOR (s); | |
2934 | /* Often many files share a blockvector. | |
2935 | Scan each blockvector only once so that | |
2936 | we don't get every symbol many times. | |
2937 | It happens that the first symtab in the list | |
2938 | for any given blockvector is the main file. */ | |
2939 | if (bv != prev_bv) | |
2940 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) | |
2941 | { | |
2942 | b = BLOCKVECTOR_BLOCK (bv, i); | |
2943 | /* Skip the sort if this block is always sorted. */ | |
2944 | if (!BLOCK_SHOULD_SORT (b)) | |
2945 | sort_block_syms (b); | |
2946 | for (j = 0; j < BLOCK_NSYMS (b); j++) | |
bd5635a1 | 2947 | { |
35a25840 SG |
2948 | QUIT; |
2949 | sym = BLOCK_SYM (b, j); | |
2e4964ad | 2950 | if ((regexp == NULL || SYMBOL_MATCHES_REGEXP (sym)) |
35a25840 | 2951 | && ((class == 0 && SYMBOL_CLASS (sym) != LOC_TYPEDEF |
3a16d640 JG |
2952 | && SYMBOL_CLASS (sym) != LOC_BLOCK |
2953 | && SYMBOL_CLASS (sym) != LOC_CONST) | |
35a25840 SG |
2954 | || (class == 1 && SYMBOL_CLASS (sym) == LOC_BLOCK) |
2955 | || (class == 2 && SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
2956 | || (class == 3 && SYMBOL_CLASS (sym) == LOC_BLOCK))) | |
bd5635a1 | 2957 | { |
35a25840 | 2958 | if (bpt) |
bd5635a1 | 2959 | { |
35a25840 SG |
2960 | /* Set a breakpoint here, if it's a function */ |
2961 | if (class == 1) | |
ca6a826d PS |
2962 | { |
2963 | /* There may be more than one function with the | |
2964 | same name but in different files. In order to | |
2965 | set breakpoints on all of them, we must give | |
2966 | both the file name and the function name to | |
76212295 PS |
2967 | break_command. |
2968 | Quoting the symbol name gets rid of problems | |
2969 | with mangled symbol names that contain | |
2970 | CPLUS_MARKER characters. */ | |
ca6a826d PS |
2971 | char *string = |
2972 | (char *) alloca (strlen (s->filename) | |
2973 | + strlen (SYMBOL_NAME(sym)) | |
76212295 | 2974 | + 4); |
ca6a826d | 2975 | strcpy (string, s->filename); |
76212295 | 2976 | strcat (string, ":'"); |
ca6a826d | 2977 | strcat (string, SYMBOL_NAME(sym)); |
76212295 | 2978 | strcat (string, "'"); |
ae6d035d | 2979 | break_command (string, from_tty); |
ca6a826d | 2980 | } |
35a25840 SG |
2981 | } |
2982 | else if (!found_in_file) | |
2983 | { | |
199b2450 TL |
2984 | fputs_filtered ("\nFile ", gdb_stdout); |
2985 | fputs_filtered (s->filename, gdb_stdout); | |
2986 | fputs_filtered (":\n", gdb_stdout); | |
35a25840 SG |
2987 | } |
2988 | found_in_file = 1; | |
2989 | ||
2990 | if (class != 2 && i == STATIC_BLOCK) | |
2991 | printf_filtered ("static "); | |
2992 | ||
2993 | /* Typedef that is not a C++ class */ | |
2994 | if (class == 2 | |
2995 | && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE) | |
199b2450 | 2996 | c_typedef_print (SYMBOL_TYPE(sym), sym, gdb_stdout); |
35a25840 SG |
2997 | /* variable, func, or typedef-that-is-c++-class */ |
2998 | else if (class < 2 || | |
2999 | (class == 2 && | |
3000 | SYMBOL_NAMESPACE(sym) == STRUCT_NAMESPACE)) | |
3001 | { | |
3002 | type_print (SYMBOL_TYPE (sym), | |
3003 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF | |
2e4964ad | 3004 | ? "" : SYMBOL_SOURCE_NAME (sym)), |
199b2450 | 3005 | gdb_stdout, 0); |
cba0d141 | 3006 | |
35a25840 SG |
3007 | printf_filtered (";\n"); |
3008 | } | |
3009 | else | |
3010 | { | |
a46d92a7 PS |
3011 | # if 0 |
3012 | /* Tiemann says: "info methods was never implemented." */ | |
3013 | char *demangled_name; | |
a8a69e63 | 3014 | c_type_print_base (TYPE_FN_FIELD_TYPE(t, i), |
199b2450 | 3015 | gdb_stdout, 0, 0); |
a8a69e63 | 3016 | c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE(t, i), |
199b2450 | 3017 | gdb_stdout, 0); |
a46d92a7 PS |
3018 | if (TYPE_FN_FIELD_STUB (t, i)) |
3019 | check_stub_method (TYPE_DOMAIN_TYPE (type), j, i); | |
3020 | demangled_name = | |
3021 | cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t, i), | |
3022 | DMGL_ANSI | DMGL_PARAMS); | |
3023 | if (demangled_name == NULL) | |
3024 | fprintf_filtered (stream, "<badly mangled name %s>", | |
3025 | TYPE_FN_FIELD_PHYSNAME (t, i)); | |
3026 | else | |
3027 | { | |
3028 | fputs_filtered (demangled_name, stream); | |
3029 | free (demangled_name); | |
3030 | } | |
bd5635a1 RP |
3031 | # endif |
3032 | } | |
3033 | } | |
3034 | } | |
35a25840 SG |
3035 | } |
3036 | prev_bv = bv; | |
bd5635a1 | 3037 | } |
997a978c | 3038 | |
997a978c | 3039 | /* If there are no eyes, avoid all contact. I mean, if there are |
cba0d141 JG |
3040 | no debug symbols, then print directly from the msymbol_vector. */ |
3041 | ||
3042 | if (found_misc || class != 1) | |
3043 | { | |
3044 | found_in_file = 0; | |
35a25840 | 3045 | ALL_MSYMBOLS (objfile, msymbol) |
cba0d141 | 3046 | { |
2e4964ad | 3047 | if (MSYMBOL_TYPE (msymbol) == ourtype || |
ae6d035d PS |
3048 | MSYMBOL_TYPE (msymbol) == ourtype2 || |
3049 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
3050 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
cba0d141 | 3051 | { |
2e4964ad | 3052 | if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol)) |
cba0d141 | 3053 | { |
35a25840 | 3054 | /* Functions: Look up by address. */ |
f70be3e4 | 3055 | if (class != 1 || |
2e4964ad | 3056 | (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))) |
cba0d141 | 3057 | { |
35a25840 | 3058 | /* Variables/Absolutes: Look up by name */ |
2e4964ad FF |
3059 | if (lookup_symbol (SYMBOL_NAME (msymbol), |
3060 | (struct block *) NULL, VAR_NAMESPACE, | |
3061 | 0, (struct symtab **) NULL) == NULL) | |
cba0d141 | 3062 | { |
f21c9aec KH |
3063 | if (bpt) |
3064 | { | |
3065 | break_command (SYMBOL_NAME (msymbol), from_tty); | |
3f687c78 | 3066 | printf_filtered ("<function, no debug info> %s;\n", |
f21c9aec KH |
3067 | SYMBOL_SOURCE_NAME (msymbol)); |
3068 | continue; | |
3069 | } | |
35a25840 | 3070 | if (!found_in_file) |
cba0d141 | 3071 | { |
35a25840 SG |
3072 | printf_filtered ("\nNon-debugging symbols:\n"); |
3073 | found_in_file = 1; | |
cba0d141 | 3074 | } |
5573d7d4 JK |
3075 | printf_filtered (" %08lx %s\n", |
3076 | (unsigned long) SYMBOL_VALUE_ADDRESS (msymbol), | |
2e4964ad | 3077 | SYMBOL_SOURCE_NAME (msymbol)); |
cba0d141 JG |
3078 | } |
3079 | } | |
3080 | } | |
3081 | } | |
997a978c | 3082 | } |
997a978c | 3083 | } |
bd5635a1 RP |
3084 | } |
3085 | ||
3086 | static void | |
35a25840 | 3087 | variables_info (regexp, from_tty) |
bd5635a1 | 3088 | char *regexp; |
35a25840 | 3089 | int from_tty; |
bd5635a1 | 3090 | { |
ae6d035d | 3091 | list_symbols (regexp, 0, 0, from_tty); |
bd5635a1 RP |
3092 | } |
3093 | ||
3094 | static void | |
35a25840 | 3095 | functions_info (regexp, from_tty) |
bd5635a1 | 3096 | char *regexp; |
35a25840 | 3097 | int from_tty; |
bd5635a1 | 3098 | { |
ae6d035d | 3099 | list_symbols (regexp, 1, 0, from_tty); |
bd5635a1 RP |
3100 | } |
3101 | ||
bd5635a1 | 3102 | static void |
35a25840 | 3103 | types_info (regexp, from_tty) |
bd5635a1 | 3104 | char *regexp; |
35a25840 | 3105 | int from_tty; |
bd5635a1 | 3106 | { |
ae6d035d | 3107 | list_symbols (regexp, 2, 0, from_tty); |
bd5635a1 | 3108 | } |
bd5635a1 RP |
3109 | |
3110 | #if 0 | |
3111 | /* Tiemann says: "info methods was never implemented." */ | |
3112 | static void | |
3113 | methods_info (regexp) | |
3114 | char *regexp; | |
3115 | { | |
ae6d035d | 3116 | list_symbols (regexp, 3, 0, from_tty); |
bd5635a1 RP |
3117 | } |
3118 | #endif /* 0 */ | |
3119 | ||
3120 | /* Breakpoint all functions matching regular expression. */ | |
3121 | static void | |
35a25840 | 3122 | rbreak_command (regexp, from_tty) |
bd5635a1 | 3123 | char *regexp; |
35a25840 | 3124 | int from_tty; |
bd5635a1 | 3125 | { |
ae6d035d | 3126 | list_symbols (regexp, 1, 1, from_tty); |
bd5635a1 RP |
3127 | } |
3128 | \f | |
bd5635a1 RP |
3129 | |
3130 | /* Return Nonzero if block a is lexically nested within block b, | |
3131 | or if a and b have the same pc range. | |
3132 | Return zero otherwise. */ | |
3133 | int | |
3134 | contained_in (a, b) | |
3135 | struct block *a, *b; | |
3136 | { | |
3137 | if (!a || !b) | |
3138 | return 0; | |
3139 | return BLOCK_START (a) >= BLOCK_START (b) | |
3140 | && BLOCK_END (a) <= BLOCK_END (b); | |
3141 | } | |
3142 | ||
3143 | \f | |
3144 | /* Helper routine for make_symbol_completion_list. */ | |
3145 | ||
f70be3e4 JG |
3146 | static int return_val_size; |
3147 | static int return_val_index; | |
3148 | static char **return_val; | |
3149 | ||
f1ed4330 | 3150 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ |
2e4964ad | 3151 | do { \ |
f1ed4330 | 3152 | if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \ |
67a64bec JK |
3153 | /* Put only the mangled name on the list. */ \ |
3154 | /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \ | |
3155 | /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \ | |
f1ed4330 JK |
3156 | completion_list_add_name \ |
3157 | (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \ | |
67a64bec JK |
3158 | else \ |
3159 | completion_list_add_name \ | |
3160 | (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \ | |
2e4964ad FF |
3161 | } while (0) |
3162 | ||
3163 | /* Test to see if the symbol specified by SYMNAME (which is already | |
f1ed4330 | 3164 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
2e4964ad | 3165 | characters. If so, add it to the current completion list. */ |
bd5635a1 | 3166 | |
cba0d141 | 3167 | static void |
f1ed4330 | 3168 | completion_list_add_name (symname, sym_text, sym_text_len, text, word) |
bd5635a1 | 3169 | char *symname; |
f1ed4330 JK |
3170 | char *sym_text; |
3171 | int sym_text_len; | |
f70be3e4 | 3172 | char *text; |
f1ed4330 | 3173 | char *word; |
bd5635a1 | 3174 | { |
f70be3e4 | 3175 | int newsize; |
8005788c RP |
3176 | int i; |
3177 | ||
3178 | /* clip symbols that cannot match */ | |
3179 | ||
f1ed4330 | 3180 | if (strncmp (symname, sym_text, sym_text_len) != 0) |
2e4964ad | 3181 | { |
8005788c RP |
3182 | return; |
3183 | } | |
f70be3e4 | 3184 | |
2e4964ad FF |
3185 | /* Clip any symbol names that we've already considered. (This is a |
3186 | time optimization) */ | |
8005788c | 3187 | |
2e4964ad FF |
3188 | for (i = 0; i < return_val_index; ++i) |
3189 | { | |
3190 | if (STREQ (symname, return_val[i])) | |
3191 | { | |
3192 | return; | |
3193 | } | |
f70be3e4 | 3194 | } |
2e4964ad FF |
3195 | |
3196 | /* We have a match for a completion, so add SYMNAME to the current list | |
3197 | of matches. Note that the name is moved to freshly malloc'd space. */ | |
f70be3e4 | 3198 | |
f1ed4330 JK |
3199 | { |
3200 | char *new; | |
3201 | if (word == sym_text) | |
3202 | { | |
3203 | new = xmalloc (strlen (symname) + 5); | |
3204 | strcpy (new, symname); | |
3205 | } | |
3206 | else if (word > sym_text) | |
3207 | { | |
3208 | /* Return some portion of symname. */ | |
3209 | new = xmalloc (strlen (symname) + 5); | |
3210 | strcpy (new, symname + (word - sym_text)); | |
3211 | } | |
3212 | else | |
3213 | { | |
3214 | /* Return some of SYM_TEXT plus symname. */ | |
3215 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
3216 | strncpy (new, word, sym_text - word); | |
3217 | new[sym_text - word] = '\0'; | |
3218 | strcat (new, symname); | |
3219 | } | |
3220 | ||
2b576293 C |
3221 | /* Recheck for duplicates if we intend to add a modified symbol. */ |
3222 | if (word != sym_text) | |
3223 | { | |
3224 | for (i = 0; i < return_val_index; ++i) | |
3225 | { | |
3226 | if (STREQ (new, return_val[i])) | |
3227 | { | |
3228 | free (new); | |
3229 | return; | |
3230 | } | |
3231 | } | |
3232 | } | |
3233 | ||
f1ed4330 JK |
3234 | if (return_val_index + 3 > return_val_size) |
3235 | { | |
3236 | newsize = (return_val_size *= 2) * sizeof (char *); | |
3237 | return_val = (char **) xrealloc ((char *) return_val, newsize); | |
3238 | } | |
3239 | return_val[return_val_index++] = new; | |
3240 | return_val[return_val_index] = NULL; | |
3241 | } | |
bd5635a1 RP |
3242 | } |
3243 | ||
3244 | /* Return a NULL terminated array of all symbols (regardless of class) which | |
3245 | begin by matching TEXT. If the answer is no symbols, then the return value | |
3246 | is an array which contains only a NULL pointer. | |
3247 | ||
f70be3e4 JG |
3248 | Problem: All of the symbols have to be copied because readline frees them. |
3249 | I'm not going to worry about this; hopefully there won't be that many. */ | |
bd5635a1 RP |
3250 | |
3251 | char ** | |
f1ed4330 JK |
3252 | make_symbol_completion_list (text, word) |
3253 | char *text; | |
3254 | char *word; | |
bd5635a1 | 3255 | { |
f70be3e4 | 3256 | register struct symbol *sym; |
bd5635a1 RP |
3257 | register struct symtab *s; |
3258 | register struct partial_symtab *ps; | |
cba0d141 JG |
3259 | register struct minimal_symbol *msymbol; |
3260 | register struct objfile *objfile; | |
bd5635a1 | 3261 | register struct block *b, *surrounding_static_block = 0; |
bd5635a1 | 3262 | register int i, j; |
b607efe7 | 3263 | struct partial_symbol **psym; |
f1ed4330 JK |
3264 | /* The symbol we are completing on. Points in same buffer as text. */ |
3265 | char *sym_text; | |
3266 | /* Length of sym_text. */ | |
3267 | int sym_text_len; | |
3268 | ||
3269 | /* Now look for the symbol we are supposed to complete on. | |
3270 | FIXME: This should be language-specific. */ | |
3271 | { | |
3272 | char *p; | |
3273 | char quote_found; | |
01d3fdba | 3274 | char *quote_pos = NULL; |
f1ed4330 JK |
3275 | |
3276 | /* First see if this is a quoted string. */ | |
3277 | quote_found = '\0'; | |
3278 | for (p = text; *p != '\0'; ++p) | |
3279 | { | |
3280 | if (quote_found != '\0') | |
3281 | { | |
3282 | if (*p == quote_found) | |
3283 | /* Found close quote. */ | |
3284 | quote_found = '\0'; | |
3285 | else if (*p == '\\' && p[1] == quote_found) | |
3286 | /* A backslash followed by the quote character | |
3287 | doesn't end the string. */ | |
3288 | ++p; | |
3289 | } | |
3290 | else if (*p == '\'' || *p == '"') | |
3291 | { | |
3292 | quote_found = *p; | |
3293 | quote_pos = p; | |
3294 | } | |
3295 | } | |
3296 | if (quote_found == '\'') | |
3297 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3298 | sym_text = quote_pos + 1; | |
3299 | else if (quote_found == '"') | |
3300 | /* A double-quoted string is never a symbol, nor does it make sense | |
3301 | to complete it any other way. */ | |
3302 | return NULL; | |
3303 | else | |
3304 | { | |
3305 | /* It is not a quoted string. Break it based on the characters | |
3306 | which are in symbols. */ | |
3307 | while (p > text) | |
3308 | { | |
3309 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
3310 | --p; | |
3311 | else | |
3312 | break; | |
3313 | } | |
3314 | sym_text = p; | |
3315 | } | |
3316 | } | |
3317 | ||
3318 | sym_text_len = strlen (sym_text); | |
bd5635a1 | 3319 | |
bd5635a1 RP |
3320 | return_val_size = 100; |
3321 | return_val_index = 0; | |
f70be3e4 JG |
3322 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); |
3323 | return_val[0] = NULL; | |
bd5635a1 RP |
3324 | |
3325 | /* Look through the partial symtabs for all symbols which begin | |
f1ed4330 | 3326 | by matching SYM_TEXT. Add each one that you find to the list. */ |
bd5635a1 | 3327 | |
35a25840 | 3328 | ALL_PSYMTABS (objfile, ps) |
bd5635a1 | 3329 | { |
35a25840 SG |
3330 | /* If the psymtab's been read in we'll get it when we search |
3331 | through the blockvector. */ | |
3332 | if (ps->readin) continue; | |
3333 | ||
3334 | for (psym = objfile->global_psymbols.list + ps->globals_offset; | |
3335 | psym < (objfile->global_psymbols.list + ps->globals_offset | |
3336 | + ps->n_global_syms); | |
3337 | psym++) | |
bd5635a1 | 3338 | { |
f70be3e4 JG |
3339 | /* If interrupted, then quit. */ |
3340 | QUIT; | |
b607efe7 | 3341 | COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word); |
35a25840 SG |
3342 | } |
3343 | ||
3344 | for (psym = objfile->static_psymbols.list + ps->statics_offset; | |
3345 | psym < (objfile->static_psymbols.list + ps->statics_offset | |
3346 | + ps->n_static_syms); | |
3347 | psym++) | |
3348 | { | |
3349 | QUIT; | |
b607efe7 | 3350 | COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word); |
bd5635a1 RP |
3351 | } |
3352 | } | |
3353 | ||
cba0d141 | 3354 | /* At this point scan through the misc symbol vectors and add each |
bd5635a1 RP |
3355 | symbol you find to the list. Eventually we want to ignore |
3356 | anything that isn't a text symbol (everything else will be | |
3357 | handled by the psymtab code above). */ | |
3358 | ||
35a25840 | 3359 | ALL_MSYMBOLS (objfile, msymbol) |
cba0d141 | 3360 | { |
f70be3e4 | 3361 | QUIT; |
f1ed4330 | 3362 | COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word); |
cba0d141 | 3363 | } |
bd5635a1 RP |
3364 | |
3365 | /* Search upwards from currently selected frame (so that we can | |
3366 | complete on local vars. */ | |
f70be3e4 JG |
3367 | |
3368 | for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b)) | |
3369 | { | |
3370 | if (!BLOCK_SUPERBLOCK (b)) | |
3371 | { | |
3372 | surrounding_static_block = b; /* For elmin of dups */ | |
3373 | } | |
3374 | ||
3375 | /* Also catch fields of types defined in this places which match our | |
3376 | text string. Only complete on types visible from current context. */ | |
3377 | ||
3378 | for (i = 0; i < BLOCK_NSYMS (b); i++) | |
3379 | { | |
3380 | sym = BLOCK_SYM (b, i); | |
f1ed4330 | 3381 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
f70be3e4 JG |
3382 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
3383 | { | |
3384 | struct type *t = SYMBOL_TYPE (sym); | |
3385 | enum type_code c = TYPE_CODE (t); | |
3386 | ||
3387 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
3388 | { | |
3389 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
3390 | { | |
3391 | if (TYPE_FIELD_NAME (t, j)) | |
3392 | { | |
2e4964ad | 3393 | completion_list_add_name (TYPE_FIELD_NAME (t, j), |
f1ed4330 | 3394 | sym_text, sym_text_len, text, word); |
f70be3e4 JG |
3395 | } |
3396 | } | |
3397 | } | |
3398 | } | |
3399 | } | |
3400 | } | |
3401 | ||
3402 | /* Go through the symtabs and check the externs and statics for | |
3403 | symbols which match. */ | |
3404 | ||
3405 | ALL_SYMTABS (objfile, s) | |
3406 | { | |
3407 | QUIT; | |
3408 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
3409 | for (i = 0; i < BLOCK_NSYMS (b); i++) | |
3410 | { | |
3411 | sym = BLOCK_SYM (b, i); | |
f1ed4330 | 3412 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
f70be3e4 JG |
3413 | } |
3414 | } | |
3415 | ||
3416 | ALL_SYMTABS (objfile, s) | |
3417 | { | |
3418 | QUIT; | |
3419 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
3420 | /* Don't do this block twice. */ | |
3421 | if (b == surrounding_static_block) continue; | |
3422 | for (i = 0; i < BLOCK_NSYMS (b); i++) | |
3423 | { | |
3424 | sym = BLOCK_SYM (b, i); | |
f1ed4330 | 3425 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
f70be3e4 JG |
3426 | } |
3427 | } | |
3428 | ||
3429 | return (return_val); | |
3430 | } | |
3431 | ||
3f687c78 SG |
3432 | /* Determine if PC is in the prologue of a function. The prologue is the area |
3433 | between the first instruction of a function, and the first executable line. | |
3434 | Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue. | |
9b041f69 | 3435 | |
211b564e | 3436 | If non-zero, func_start is where we think the prologue starts, possibly |
9b041f69 | 3437 | by previous examination of symbol table information. |
3f687c78 SG |
3438 | */ |
3439 | ||
3440 | int | |
3441 | in_prologue (pc, func_start) | |
3442 | CORE_ADDR pc; | |
3443 | CORE_ADDR func_start; | |
3444 | { | |
3445 | struct symtab_and_line sal; | |
3446 | CORE_ADDR func_addr, func_end; | |
3447 | ||
3448 | if (!find_pc_partial_function (pc, NULL, &func_addr, &func_end)) | |
3449 | goto nosyms; /* Might be in prologue */ | |
3450 | ||
3451 | sal = find_pc_line (func_addr, 0); | |
3452 | ||
3453 | if (sal.line == 0) | |
3454 | goto nosyms; | |
3455 | ||
3456 | if (sal.end > func_addr | |
3457 | && sal.end <= func_end) /* Is prologue in function? */ | |
3458 | return pc < sal.end; /* Yes, is pc in prologue? */ | |
3459 | ||
3460 | /* The line after the prologue seems to be outside the function. In this | |
3461 | case, tell the caller to find the prologue the hard way. */ | |
3462 | ||
3463 | return 1; | |
3464 | ||
3465 | /* Come here when symtabs don't contain line # info. In this case, it is | |
3466 | likely that the user has stepped into a library function w/o symbols, or | |
3467 | is doing a stepi/nexti through code without symbols. */ | |
3468 | ||
3469 | nosyms: | |
3470 | ||
9b041f69 PS |
3471 | /* If func_start is zero (meaning unknown) then we don't know whether pc is |
3472 | in the prologue or not. I.E. it might be. */ | |
3473 | ||
3474 | if (!func_start) return 1; | |
3475 | ||
3f687c78 SG |
3476 | /* We need to call the target-specific prologue skipping functions with the |
3477 | function's start address because PC may be pointing at an instruction that | |
3478 | could be mistakenly considered part of the prologue. */ | |
3479 | ||
3480 | SKIP_PROLOGUE (func_start); | |
3481 | ||
3482 | return pc < func_start; | |
3483 | } | |
3484 | ||
997a978c | 3485 | \f |
bd5635a1 RP |
3486 | void |
3487 | _initialize_symtab () | |
3488 | { | |
3489 | add_info ("variables", variables_info, | |
3490 | "All global and static variable names, or those matching REGEXP."); | |
3491 | add_info ("functions", functions_info, | |
3492 | "All function names, or those matching REGEXP."); | |
3ba6a043 JG |
3493 | |
3494 | /* FIXME: This command has at least the following problems: | |
bd5635a1 RP |
3495 | 1. It prints builtin types (in a very strange and confusing fashion). |
3496 | 2. It doesn't print right, e.g. with | |
3497 | typedef struct foo *FOO | |
3498 | type_print prints "FOO" when we want to make it (in this situation) | |
3499 | print "struct foo *". | |
3500 | I also think "ptype" or "whatis" is more likely to be useful (but if | |
3501 | there is much disagreement "info types" can be fixed). */ | |
3502 | add_info ("types", types_info, | |
a0a6174a | 3503 | "All type names, or those matching REGEXP."); |
3ba6a043 | 3504 | |
bd5635a1 RP |
3505 | #if 0 |
3506 | add_info ("methods", methods_info, | |
3507 | "All method names, or those matching REGEXP::REGEXP.\n\ | |
50e0dc41 | 3508 | If the class qualifier is omitted, it is assumed to be the current scope.\n\ |
cba0d141 | 3509 | If the first REGEXP is omitted, then all methods matching the second REGEXP\n\ |
bd5635a1 RP |
3510 | are listed."); |
3511 | #endif | |
3512 | add_info ("sources", sources_info, | |
3513 | "Source files in the program."); | |
3514 | ||
3515 | add_com ("rbreak", no_class, rbreak_command, | |
3516 | "Set a breakpoint for all functions matching REGEXP."); | |
3517 | ||
997a978c | 3518 | /* Initialize the one built-in type that isn't language dependent... */ |
cba0d141 JG |
3519 | builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0, |
3520 | "<unknown type>", (struct objfile *) NULL); | |
bd5635a1 | 3521 | } |