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 | |
7f6cb62e | 48 | static 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 | 74 | |
cba0d141 JG |
75 | static void |
76 | output_source_filename PARAMS ((char *, int *)); | |
77 | ||
a46d92a7 | 78 | char * |
cba0d141 JG |
79 | operator_chars PARAMS ((char *, char **)); |
80 | ||
018ab14f | 81 | static int find_line_common PARAMS ((struct linetable *, int, int *)); |
cba0d141 JG |
82 | |
83 | static struct partial_symbol * | |
84 | lookup_partial_symbol PARAMS ((struct partial_symtab *, const char *, | |
1750a5ef | 85 | int, namespace_enum)); |
cba0d141 | 86 | |
79f15b12 DE |
87 | static struct partial_symbol * |
88 | fixup_psymbol_section PARAMS ((struct partial_symbol *, struct objfile *)); | |
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 | ||
e21fb2ae MS |
96 | static struct symbol * |
97 | find_active_alias PARAMS ((struct symbol *sym, CORE_ADDR addr)); | |
98 | ||
cba0d141 | 99 | /* */ |
bd5635a1 | 100 | |
997a978c | 101 | /* The single non-language-specific builtin type */ |
bd5635a1 RP |
102 | struct type *builtin_type_error; |
103 | ||
104 | /* Block in which the most recently searched-for symbol was found. | |
105 | Might be better to make this a parameter to lookup_symbol and | |
106 | value_of_this. */ | |
cba0d141 JG |
107 | |
108 | const struct block *block_found; | |
bd5635a1 RP |
109 | |
110 | char no_symtab_msg[] = "No symbol table is loaded. Use the \"file\" command."; | |
111 | ||
f70be3e4 JG |
112 | /* While the C++ support is still in flux, issue a possibly helpful hint on |
113 | using the new command completion feature on single quoted demangled C++ | |
114 | symbols. Remove when loose ends are cleaned up. FIXME -fnf */ | |
115 | ||
b607efe7 | 116 | static void |
f70be3e4 JG |
117 | cplusplus_hint (name) |
118 | char *name; | |
119 | { | |
9b041f69 PS |
120 | while (*name == '\'') |
121 | name++; | |
1c95d7ab JK |
122 | printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name); |
123 | printf_filtered ("(Note leading single quote.)\n"); | |
f70be3e4 JG |
124 | } |
125 | ||
bd5635a1 RP |
126 | /* Check for a symtab of a specific name; first in symtabs, then in |
127 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
128 | in the symtab filename will also work. */ | |
129 | ||
130 | static struct symtab * | |
131 | lookup_symtab_1 (name) | |
132 | char *name; | |
133 | { | |
134 | register struct symtab *s; | |
135 | register struct partial_symtab *ps; | |
35a25840 | 136 | register char *slash; |
cba0d141 | 137 | register struct objfile *objfile; |
bd5635a1 | 138 | |
784fd92b | 139 | got_symtab: |
35a25840 | 140 | |
784fd92b SG |
141 | /* First, search for an exact match */ |
142 | ||
143 | ALL_SYMTABS (objfile, s) | |
2e4964ad | 144 | if (STREQ (name, s->filename)) |
784fd92b | 145 | return s; |
35a25840 SG |
146 | |
147 | slash = strchr (name, '/'); | |
784fd92b SG |
148 | |
149 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ | |
35a25840 | 150 | |
bd5635a1 | 151 | if (!slash) |
784fd92b SG |
152 | ALL_SYMTABS (objfile, s) |
153 | { | |
154 | char *p = s -> filename; | |
155 | char *tail = strrchr (p, '/'); | |
156 | ||
157 | if (tail) | |
158 | p = tail + 1; | |
159 | ||
2e4964ad | 160 | if (STREQ (p, name)) |
784fd92b SG |
161 | return s; |
162 | } | |
163 | ||
164 | /* Same search rules as above apply here, but now we look thru the | |
165 | psymtabs. */ | |
166 | ||
ad0a2521 JK |
167 | ps = lookup_partial_symtab (name); |
168 | if (!ps) | |
169 | return (NULL); | |
784fd92b SG |
170 | |
171 | if (ps -> readin) | |
35fcebce PB |
172 | error ("Internal: readin %s pst for `%s' found when no symtab found.", |
173 | ps -> filename, name); | |
784fd92b SG |
174 | |
175 | s = PSYMTAB_TO_SYMTAB (ps); | |
176 | ||
177 | if (s) | |
178 | return s; | |
179 | ||
180 | /* At this point, we have located the psymtab for this file, but | |
181 | the conversion to a symtab has failed. This usually happens | |
182 | when we are looking up an include file. In this case, | |
183 | PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has | |
184 | been created. So, we need to run through the symtabs again in | |
185 | order to find the file. | |
186 | XXX - This is a crock, and should be fixed inside of the the | |
187 | symbol parsing routines. */ | |
188 | goto got_symtab; | |
bd5635a1 RP |
189 | } |
190 | ||
191 | /* Lookup the symbol table of a source file named NAME. Try a couple | |
192 | of variations if the first lookup doesn't work. */ | |
193 | ||
194 | struct symtab * | |
195 | lookup_symtab (name) | |
196 | char *name; | |
197 | { | |
198 | register struct symtab *s; | |
1c95d7ab | 199 | #if 0 |
bd5635a1 | 200 | register char *copy; |
1c95d7ab | 201 | #endif |
bd5635a1 RP |
202 | |
203 | s = lookup_symtab_1 (name); | |
204 | if (s) return s; | |
205 | ||
d8a66e60 JK |
206 | #if 0 |
207 | /* This screws c-exp.y:yylex if there is both a type "tree" and a symtab | |
208 | "tree.c". */ | |
209 | ||
bd5635a1 | 210 | /* If name not found as specified, see if adding ".c" helps. */ |
ad0a2521 JK |
211 | /* Why is this? Is it just a user convenience? (If so, it's pretty |
212 | questionable in the presence of C++, FORTRAN, etc.). It's not in | |
213 | the GDB manual. */ | |
bd5635a1 RP |
214 | |
215 | copy = (char *) alloca (strlen (name) + 3); | |
216 | strcpy (copy, name); | |
217 | strcat (copy, ".c"); | |
218 | s = lookup_symtab_1 (copy); | |
219 | if (s) return s; | |
d8a66e60 | 220 | #endif /* 0 */ |
bd5635a1 RP |
221 | |
222 | /* We didn't find anything; die. */ | |
223 | return 0; | |
224 | } | |
225 | ||
ad0a2521 JK |
226 | /* Lookup the partial symbol table of a source file named NAME. |
227 | *If* there is no '/' in the name, a match after a '/' | |
228 | in the psymtab filename will also work. */ | |
bd5635a1 RP |
229 | |
230 | struct partial_symtab * | |
231 | lookup_partial_symtab (name) | |
232 | char *name; | |
233 | { | |
cba0d141 JG |
234 | register struct partial_symtab *pst; |
235 | register struct objfile *objfile; | |
bd5635a1 | 236 | |
35a25840 | 237 | ALL_PSYMTABS (objfile, pst) |
bd5635a1 | 238 | { |
2e4964ad | 239 | if (STREQ (name, pst -> filename)) |
bd5635a1 | 240 | { |
35a25840 | 241 | return (pst); |
bd5635a1 | 242 | } |
35a25840 | 243 | } |
ad0a2521 JK |
244 | |
245 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ | |
246 | ||
247 | if (!strchr (name, '/')) | |
248 | ALL_PSYMTABS (objfile, pst) | |
249 | { | |
250 | char *p = pst -> filename; | |
251 | char *tail = strrchr (p, '/'); | |
252 | ||
253 | if (tail) | |
254 | p = tail + 1; | |
255 | ||
256 | if (STREQ (p, name)) | |
257 | return (pst); | |
258 | } | |
259 | ||
cba0d141 | 260 | return (NULL); |
bd5635a1 | 261 | } |
cba0d141 | 262 | \f |
7f6cb62e KS |
263 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the |
264 | full method name, which consist of the class name (from T), the unadorned | |
265 | method name from METHOD_ID, and the signature for the specific overload, | |
266 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ | |
0b28c260 | 267 | |
bd5635a1 | 268 | char * |
7f6cb62e | 269 | gdb_mangle_name (type, method_id, signature_id) |
bd5635a1 | 270 | struct type *type; |
7f6cb62e | 271 | int method_id, signature_id; |
bd5635a1 | 272 | { |
bcccec8c PB |
273 | int mangled_name_len; |
274 | char *mangled_name; | |
7f6cb62e KS |
275 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); |
276 | struct fn_field *method = &f[signature_id]; | |
277 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); | |
278 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); | |
35fcebce | 279 | char *newname = type_name_no_tag (type); |
d47a7f52 JK |
280 | |
281 | /* Does the form of physname indicate that it is the full mangled name | |
282 | of a constructor (not just the args)? */ | |
283 | int is_full_physname_constructor; | |
284 | ||
ad0a2521 | 285 | int is_constructor; |
2d575e6f | 286 | int is_destructor = DESTRUCTOR_PREFIX_P (physname); |
bcccec8c | 287 | /* Need a new type prefix. */ |
bcccec8c PB |
288 | char *const_prefix = method->is_const ? "C" : ""; |
289 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
bcccec8c | 290 | char buf[20]; |
ad0a2521 | 291 | int len = (newname == NULL ? 0 : strlen (newname)); |
ad0a2521 | 292 | |
d47a7f52 JK |
293 | is_full_physname_constructor = |
294 | ((physname[0]=='_' && physname[1]=='_' && | |
295 | (isdigit(physname[2]) || physname[2]=='Q' || physname[2]=='t')) | |
296 | || (strncmp(physname, "__ct", 4) == 0)); | |
297 | ||
298 | is_constructor = | |
299 | is_full_physname_constructor || (newname && STREQ(field_name, newname)); | |
300 | ||
ad0a2521 JK |
301 | if (!is_destructor) |
302 | is_destructor = (strncmp(physname, "__dt", 4) == 0); | |
35fcebce | 303 | |
d47a7f52 | 304 | if (is_destructor || is_full_physname_constructor) |
35fcebce PB |
305 | { |
306 | mangled_name = (char*) xmalloc(strlen(physname)+1); | |
307 | strcpy(mangled_name, physname); | |
308 | return mangled_name; | |
309 | } | |
310 | ||
ad0a2521 JK |
311 | if (len == 0) |
312 | { | |
313 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
ad0a2521 | 314 | } |
27f1958c | 315 | else if (physname[0] == 't' || physname[0] == 'Q') |
76212295 | 316 | { |
27f1958c PS |
317 | /* The physname for template and qualified methods already includes |
318 | the class name. */ | |
76212295 PS |
319 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
320 | newname = NULL; | |
321 | len = 0; | |
322 | } | |
ad0a2521 JK |
323 | else |
324 | { | |
325 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
326 | } | |
35fcebce PB |
327 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) |
328 | + strlen (buf) + len | |
329 | + strlen (physname) | |
330 | + 1); | |
331 | ||
332 | /* Only needed for GNU-mangled names. ANSI-mangled names | |
333 | work with the normal mechanisms. */ | |
334 | if (OPNAME_PREFIX_P (field_name)) | |
335 | { | |
b607efe7 | 336 | const char *opname = cplus_mangle_opname (field_name + 3, 0); |
35fcebce PB |
337 | if (opname == NULL) |
338 | error ("No mangling for \"%s\"", field_name); | |
339 | mangled_name_len += strlen (opname); | |
340 | mangled_name = (char *)xmalloc (mangled_name_len); | |
341 | ||
342 | strncpy (mangled_name, field_name, 3); | |
343 | mangled_name[3] = '\0'; | |
344 | strcat (mangled_name, opname); | |
345 | } | |
346 | else | |
347 | { | |
348 | mangled_name = (char *)xmalloc (mangled_name_len); | |
349 | if (is_constructor) | |
350 | mangled_name[0] = '\0'; | |
351 | else | |
352 | strcpy (mangled_name, field_name); | |
353 | } | |
354 | strcat (mangled_name, buf); | |
018ab14f PS |
355 | /* If the class doesn't have a name, i.e. newname NULL, then we just |
356 | mangle it using 0 for the length of the class. Thus it gets mangled | |
2d575e6f | 357 | as something starting with `::' rather than `classname::'. */ |
018ab14f PS |
358 | if (newname != NULL) |
359 | strcat (mangled_name, newname); | |
2d575e6f | 360 | |
35fcebce | 361 | strcat (mangled_name, physname); |
8050a57b | 362 | return (mangled_name); |
bd5635a1 RP |
363 | } |
364 | ||
cba0d141 | 365 | \f |
211b564e | 366 | |
211b564e | 367 | /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */ |
f1d77e90 | 368 | |
cba0d141 | 369 | struct partial_symtab * |
211b564e PS |
370 | find_pc_sect_psymtab (pc, section) |
371 | CORE_ADDR pc; | |
372 | asection *section; | |
d96b54ea | 373 | { |
cba0d141 JG |
374 | register struct partial_symtab *pst; |
375 | register struct objfile *objfile; | |
d96b54ea | 376 | |
35a25840 | 377 | ALL_PSYMTABS (objfile, pst) |
bd5635a1 | 378 | { |
c1878f87 | 379 | if (pc >= pst->textlow && pc < pst->texthigh) |
76212295 PS |
380 | { |
381 | struct minimal_symbol *msymbol; | |
382 | struct partial_symtab *tpst; | |
383 | ||
384 | /* An objfile that has its functions reordered might have | |
385 | many partial symbol tables containing the PC, but | |
386 | we want the partial symbol table that contains the | |
387 | function containing the PC. */ | |
211b564e PS |
388 | if (!(objfile->flags & OBJF_REORDERED) && |
389 | section == 0) /* can't validate section this way */ | |
76212295 PS |
390 | return (pst); |
391 | ||
211b564e | 392 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
76212295 PS |
393 | if (msymbol == NULL) |
394 | return (pst); | |
395 | ||
396 | for (tpst = pst; tpst != NULL; tpst = tpst->next) | |
397 | { | |
398 | if (pc >= tpst->textlow && pc < tpst->texthigh) | |
399 | { | |
400 | struct partial_symbol *p; | |
401 | ||
211b564e | 402 | p = find_pc_sect_psymbol (tpst, pc, section); |
76212295 PS |
403 | if (p != NULL |
404 | && SYMBOL_VALUE_ADDRESS(p) | |
405 | == SYMBOL_VALUE_ADDRESS (msymbol)) | |
406 | return (tpst); | |
407 | } | |
408 | } | |
409 | return (pst); | |
410 | } | |
bd5635a1 | 411 | } |
cba0d141 | 412 | return (NULL); |
bd5635a1 RP |
413 | } |
414 | ||
211b564e PS |
415 | /* Find which partial symtab contains PC. Return 0 if none. |
416 | Backward compatibility, no section */ | |
417 | ||
418 | struct partial_symtab * | |
419 | find_pc_psymtab (pc) | |
420 | CORE_ADDR pc; | |
421 | { | |
422 | return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc)); | |
423 | } | |
424 | ||
425 | /* Find which partial symbol within a psymtab matches PC and SECTION. | |
426 | Return 0 if none. Check all psymtabs if PSYMTAB is 0. */ | |
427 | ||
bd5635a1 | 428 | struct partial_symbol * |
211b564e | 429 | find_pc_sect_psymbol (psymtab, pc, section) |
bd5635a1 RP |
430 | struct partial_symtab *psymtab; |
431 | CORE_ADDR pc; | |
211b564e | 432 | asection *section; |
bd5635a1 | 433 | { |
b607efe7 | 434 | struct partial_symbol *best = NULL, *p, **pp; |
bd5635a1 RP |
435 | CORE_ADDR best_pc; |
436 | ||
437 | if (!psymtab) | |
211b564e | 438 | psymtab = find_pc_sect_psymtab (pc, section); |
bd5635a1 RP |
439 | if (!psymtab) |
440 | return 0; | |
441 | ||
442 | best_pc = psymtab->textlow - 1; | |
443 | ||
d8a66e60 JK |
444 | /* Search the global symbols as well as the static symbols, so that |
445 | find_pc_partial_function doesn't use a minimal symbol and thus | |
446 | cache a bad endaddr. */ | |
b607efe7 FF |
447 | for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset; |
448 | (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset) | |
d8a66e60 | 449 | < psymtab->n_global_syms); |
b607efe7 FF |
450 | pp++) |
451 | { | |
452 | p = *pp; | |
453 | if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE | |
454 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
455 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
456 | && SYMBOL_VALUE_ADDRESS (p) > best_pc) | |
457 | { | |
211b564e PS |
458 | if (section) /* match on a specific section */ |
459 | { | |
460 | fixup_psymbol_section (p, psymtab->objfile); | |
461 | if (SYMBOL_BFD_SECTION (p) != section) | |
462 | continue; | |
463 | } | |
b607efe7 FF |
464 | best_pc = SYMBOL_VALUE_ADDRESS (p); |
465 | best = p; | |
466 | } | |
467 | } | |
468 | for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset; | |
469 | (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset) | |
bd5635a1 | 470 | < psymtab->n_static_syms); |
b607efe7 FF |
471 | pp++) |
472 | { | |
473 | p = *pp; | |
474 | if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE | |
475 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
476 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
477 | && SYMBOL_VALUE_ADDRESS (p) > best_pc) | |
478 | { | |
211b564e PS |
479 | if (section) /* match on a specific section */ |
480 | { | |
481 | fixup_psymbol_section (p, psymtab->objfile); | |
482 | if (SYMBOL_BFD_SECTION (p) != section) | |
483 | continue; | |
484 | } | |
b607efe7 FF |
485 | best_pc = SYMBOL_VALUE_ADDRESS (p); |
486 | best = p; | |
487 | } | |
488 | } | |
bd5635a1 RP |
489 | if (best_pc == psymtab->textlow - 1) |
490 | return 0; | |
491 | return best; | |
492 | } | |
493 | ||
211b564e PS |
494 | /* Find which partial symbol within a psymtab matches PC. Return 0 if none. |
495 | Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */ | |
496 | ||
497 | struct partial_symbol * | |
498 | find_pc_psymbol (psymtab, pc) | |
499 | struct partial_symtab *psymtab; | |
500 | CORE_ADDR pc; | |
501 | { | |
502 | return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc)); | |
503 | } | |
504 | \f | |
4c681116 SG |
505 | /* Debug symbols usually don't have section information. We need to dig that |
506 | out of the minimal symbols and stash that in the debug symbol. */ | |
507 | ||
211b564e PS |
508 | static void |
509 | fixup_section (ginfo, objfile) | |
510 | struct general_symbol_info *ginfo; | |
511 | struct objfile *objfile; | |
512 | { | |
513 | struct minimal_symbol *msym; | |
514 | msym = lookup_minimal_symbol (ginfo->name, NULL, objfile); | |
515 | ||
516 | if (msym) | |
517 | ginfo->bfd_section = SYMBOL_BFD_SECTION (msym); | |
518 | } | |
519 | ||
520 | struct symbol * | |
4c681116 SG |
521 | fixup_symbol_section (sym, objfile) |
522 | struct symbol *sym; | |
523 | struct objfile *objfile; | |
524 | { | |
07422705 PS |
525 | if (!sym) |
526 | return NULL; | |
527 | ||
4c681116 SG |
528 | if (SYMBOL_BFD_SECTION (sym)) |
529 | return sym; | |
530 | ||
211b564e | 531 | fixup_section (&sym->ginfo, objfile); |
4c681116 SG |
532 | |
533 | return sym; | |
534 | } | |
535 | ||
79f15b12 | 536 | static struct partial_symbol * |
211b564e PS |
537 | fixup_psymbol_section (psym, objfile) |
538 | struct partial_symbol *psym; | |
539 | struct objfile *objfile; | |
540 | { | |
211b564e PS |
541 | if (!psym) |
542 | return NULL; | |
543 | ||
544 | if (SYMBOL_BFD_SECTION (psym)) | |
545 | return psym; | |
546 | ||
547 | fixup_section (&psym->ginfo, objfile); | |
548 | ||
549 | return psym; | |
550 | } | |
551 | ||
bd5635a1 RP |
552 | /* Find the definition for a specified symbol name NAME |
553 | in namespace NAMESPACE, visible from lexical block BLOCK. | |
554 | Returns the struct symbol pointer, or zero if no symbol is found. | |
555 | If SYMTAB is non-NULL, store the symbol table in which the | |
556 | symbol was found there, or NULL if not found. | |
557 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if | |
558 | NAME is a field of the current implied argument `this'. If so set | |
559 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. | |
560 | BLOCK_FOUND is set to the block in which NAME is found (in the case of | |
561 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
562 | ||
87041845 JK |
563 | /* This function has a bunch of loops in it and it would seem to be |
564 | attractive to put in some QUIT's (though I'm not really sure | |
565 | whether it can run long enough to be really important). But there | |
566 | are a few calls for which it would appear to be bad news to quit | |
567 | out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and | |
568 | nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++ | |
569 | code below which can error(), but that probably doesn't affect | |
570 | these calls since they are looking for a known variable and thus | |
571 | can probably assume it will never hit the C++ code). */ | |
572 | ||
bd5635a1 RP |
573 | struct symbol * |
574 | lookup_symbol (name, block, namespace, is_a_field_of_this, symtab) | |
cba0d141 JG |
575 | const char *name; |
576 | register const struct block *block; | |
1750a5ef | 577 | const namespace_enum namespace; |
bd5635a1 RP |
578 | int *is_a_field_of_this; |
579 | struct symtab **symtab; | |
580 | { | |
581 | register struct symbol *sym; | |
01d3fdba | 582 | register struct symtab *s = NULL; |
bd5635a1 RP |
583 | register struct partial_symtab *ps; |
584 | struct blockvector *bv; | |
4c681116 | 585 | register struct objfile *objfile = NULL; |
cba0d141 | 586 | register struct block *b; |
cba0d141 | 587 | register struct minimal_symbol *msymbol; |
f70be3e4 | 588 | |
bd5635a1 RP |
589 | /* Search specified block and its superiors. */ |
590 | ||
591 | while (block != 0) | |
592 | { | |
593 | sym = lookup_block_symbol (block, name, namespace); | |
594 | if (sym) | |
595 | { | |
596 | block_found = block; | |
597 | if (symtab != NULL) | |
598 | { | |
599 | /* Search the list of symtabs for one which contains the | |
600 | address of the start of this block. */ | |
35a25840 | 601 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 602 | { |
35a25840 SG |
603 | bv = BLOCKVECTOR (s); |
604 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
605 | if (BLOCK_START (b) <= BLOCK_START (block) | |
606 | && BLOCK_END (b) > BLOCK_START (block)) | |
607 | goto found; | |
bd5635a1 | 608 | } |
35a25840 | 609 | found: |
bd5635a1 RP |
610 | *symtab = s; |
611 | } | |
612 | ||
4c681116 | 613 | return fixup_symbol_section (sym, objfile); |
bd5635a1 RP |
614 | } |
615 | block = BLOCK_SUPERBLOCK (block); | |
616 | } | |
617 | ||
0b28c260 JK |
618 | /* FIXME: this code is never executed--block is always NULL at this |
619 | point. What is it trying to do, anyway? We already should have | |
620 | checked the STATIC_BLOCK above (it is the superblock of top-level | |
621 | blocks). Why is VAR_NAMESPACE special-cased? */ | |
2e4964ad | 622 | /* Don't need to mess with the psymtabs; if we have a block, |
b039ac3a JK |
623 | that file is read in. If we don't, then we deal later with |
624 | all the psymtab stuff that needs checking. */ | |
625 | if (namespace == VAR_NAMESPACE && block != NULL) | |
626 | { | |
627 | struct block *b; | |
628 | /* Find the right symtab. */ | |
35a25840 | 629 | ALL_SYMTABS (objfile, s) |
b039ac3a | 630 | { |
35a25840 SG |
631 | bv = BLOCKVECTOR (s); |
632 | b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
633 | if (BLOCK_START (b) <= BLOCK_START (block) | |
634 | && BLOCK_END (b) > BLOCK_START (block)) | |
b039ac3a | 635 | { |
2e4964ad | 636 | sym = lookup_block_symbol (b, name, VAR_NAMESPACE); |
35a25840 | 637 | if (sym) |
b039ac3a | 638 | { |
35a25840 SG |
639 | block_found = b; |
640 | if (symtab != NULL) | |
641 | *symtab = s; | |
4c681116 | 642 | return fixup_symbol_section (sym, objfile); |
b039ac3a JK |
643 | } |
644 | } | |
645 | } | |
646 | } | |
647 | ||
648 | ||
bd5635a1 RP |
649 | /* C++: If requested to do so by the caller, |
650 | check to see if NAME is a field of `this'. */ | |
651 | if (is_a_field_of_this) | |
652 | { | |
653 | struct value *v = value_of_this (0); | |
654 | ||
655 | *is_a_field_of_this = 0; | |
656 | if (v && check_field (v, name)) | |
657 | { | |
658 | *is_a_field_of_this = 1; | |
659 | if (symtab != NULL) | |
660 | *symtab = NULL; | |
4c681116 | 661 | return NULL; |
bd5635a1 RP |
662 | } |
663 | } | |
664 | ||
665 | /* Now search all global blocks. Do the symtab's first, then | |
666 | check the psymtab's */ | |
cba0d141 | 667 | |
35a25840 | 668 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 669 | { |
35a25840 SG |
670 | bv = BLOCKVECTOR (s); |
671 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
672 | sym = lookup_block_symbol (block, name, namespace); | |
673 | if (sym) | |
bd5635a1 | 674 | { |
35a25840 SG |
675 | block_found = block; |
676 | if (symtab != NULL) | |
677 | *symtab = s; | |
4c681116 | 678 | return fixup_symbol_section (sym, objfile); |
bd5635a1 RP |
679 | } |
680 | } | |
681 | ||
76212295 PS |
682 | /* Check for the possibility of the symbol being a function or |
683 | a mangled variable that is stored in one of the minimal symbol tables. | |
684 | Eventually, all global symbols might be resolved in this way. */ | |
bd5635a1 RP |
685 | |
686 | if (namespace == VAR_NAMESPACE) | |
687 | { | |
2b576293 | 688 | msymbol = lookup_minimal_symbol (name, NULL, NULL); |
f70be3e4 | 689 | if (msymbol != NULL) |
bd5635a1 | 690 | { |
211b564e PS |
691 | s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol), |
692 | SYMBOL_BFD_SECTION (msymbol)); | |
318bf84f | 693 | if (s != NULL) |
bd5635a1 | 694 | { |
76212295 | 695 | /* This is a function which has a symtab for its address. */ |
bd5635a1 | 696 | bv = BLOCKVECTOR (s); |
3ba6a043 | 697 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); |
2e4964ad FF |
698 | sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol), |
699 | namespace); | |
318bf84f | 700 | /* We kept static functions in minimal symbol table as well as |
818de002 | 701 | in static scope. We want to find them in the symbol table. */ |
818de002 PB |
702 | if (!sym) { |
703 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
2e4964ad | 704 | sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol), |
318bf84f | 705 | namespace); |
818de002 | 706 | } |
818de002 | 707 | |
cba0d141 | 708 | /* sym == 0 if symbol was found in the minimal symbol table |
bd5635a1 | 709 | but not in the symtab. |
cba0d141 | 710 | Return 0 to use the msymbol definition of "foo_". |
bd5635a1 RP |
711 | |
712 | This happens for Fortran "foo_" symbols, | |
713 | which are "foo" in the symtab. | |
714 | ||
715 | This can also happen if "asm" is used to make a | |
716 | regular symbol but not a debugging symbol, e.g. | |
717 | asm(".globl _main"); | |
718 | asm("_main:"); | |
719 | */ | |
720 | ||
721 | if (symtab != NULL) | |
722 | *symtab = s; | |
4c681116 | 723 | return fixup_symbol_section (sym, objfile); |
bd5635a1 | 724 | } |
76212295 PS |
725 | else if (MSYMBOL_TYPE (msymbol) != mst_text |
726 | && MSYMBOL_TYPE (msymbol) != mst_file_text | |
727 | && !STREQ (name, SYMBOL_NAME (msymbol))) | |
728 | { | |
729 | /* This is a mangled variable, look it up by its | |
730 | mangled name. */ | |
211b564e PS |
731 | return lookup_symbol (SYMBOL_NAME (msymbol), block, |
732 | namespace, is_a_field_of_this, symtab); | |
76212295 PS |
733 | } |
734 | /* There are no debug symbols for this file, or we are looking | |
735 | for an unmangled variable. | |
736 | Try to find a matching static symbol below. */ | |
bd5635a1 RP |
737 | } |
738 | } | |
739 | ||
35a25840 | 740 | ALL_PSYMTABS (objfile, ps) |
cba0d141 | 741 | { |
35a25840 | 742 | if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace)) |
cba0d141 | 743 | { |
35a25840 SG |
744 | s = PSYMTAB_TO_SYMTAB(ps); |
745 | bv = BLOCKVECTOR (s); | |
746 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
747 | sym = lookup_block_symbol (block, name, namespace); | |
748 | if (!sym) | |
35fcebce | 749 | error ("Internal: global symbol `%s' found in %s psymtab but not in symtab", name, ps->filename); |
35a25840 SG |
750 | if (symtab != NULL) |
751 | *symtab = s; | |
4c681116 | 752 | return fixup_symbol_section (sym, objfile); |
cba0d141 JG |
753 | } |
754 | } | |
bd5635a1 RP |
755 | |
756 | /* Now search all per-file blocks. | |
757 | Not strictly correct, but more useful than an error. | |
758 | Do the symtabs first, then check the psymtabs */ | |
759 | ||
35a25840 | 760 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 761 | { |
35a25840 SG |
762 | bv = BLOCKVECTOR (s); |
763 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
764 | sym = lookup_block_symbol (block, name, namespace); | |
765 | if (sym) | |
bd5635a1 | 766 | { |
35a25840 SG |
767 | block_found = block; |
768 | if (symtab != NULL) | |
769 | *symtab = s; | |
4c681116 | 770 | return fixup_symbol_section (sym, objfile); |
35a25840 SG |
771 | } |
772 | } | |
773 | ||
774 | ALL_PSYMTABS (objfile, ps) | |
775 | { | |
776 | if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace)) | |
777 | { | |
778 | s = PSYMTAB_TO_SYMTAB(ps); | |
cba0d141 JG |
779 | bv = BLOCKVECTOR (s); |
780 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
781 | sym = lookup_block_symbol (block, name, namespace); | |
35a25840 | 782 | if (!sym) |
35fcebce | 783 | error ("Internal: static symbol `%s' found in %s psymtab but not in symtab", name, ps->filename); |
35a25840 SG |
784 | if (symtab != NULL) |
785 | *symtab = s; | |
4c681116 | 786 | return fixup_symbol_section (sym, objfile); |
35a25840 SG |
787 | } |
788 | } | |
789 | ||
bd5635a1 RP |
790 | if (symtab != NULL) |
791 | *symtab = NULL; | |
792 | return 0; | |
793 | } | |
794 | ||
795 | /* Look, in partial_symtab PST, for symbol NAME. Check the global | |
796 | symbols if GLOBAL, the static symbols if not */ | |
797 | ||
798 | static struct partial_symbol * | |
799 | lookup_partial_symbol (pst, name, global, namespace) | |
800 | struct partial_symtab *pst; | |
cba0d141 | 801 | const char *name; |
bd5635a1 | 802 | int global; |
1750a5ef | 803 | namespace_enum namespace; |
bd5635a1 | 804 | { |
b607efe7 FF |
805 | struct partial_symbol **start, **psym; |
806 | struct partial_symbol **top, **bottom, **center; | |
bd5635a1 | 807 | int length = (global ? pst->n_global_syms : pst->n_static_syms); |
2e4964ad | 808 | int do_linear_search = 1; |
bd5635a1 | 809 | |
2e4964ad FF |
810 | if (length == 0) |
811 | { | |
812 | return (NULL); | |
813 | } | |
bd5635a1 RP |
814 | |
815 | start = (global ? | |
cba0d141 JG |
816 | pst->objfile->global_psymbols.list + pst->globals_offset : |
817 | pst->objfile->static_psymbols.list + pst->statics_offset ); | |
bd5635a1 | 818 | |
2e4964ad | 819 | if (global) /* This means we can use a binary search. */ |
bd5635a1 | 820 | { |
2e4964ad | 821 | do_linear_search = 0; |
bd5635a1 RP |
822 | |
823 | /* Binary search. This search is guaranteed to end with center | |
824 | pointing at the earliest partial symbol with the correct | |
825 | name. At that point *all* partial symbols with that name | |
826 | will be checked against the correct namespace. */ | |
2e4964ad | 827 | |
bd5635a1 RP |
828 | bottom = start; |
829 | top = start + length - 1; | |
830 | while (top > bottom) | |
831 | { | |
832 | center = bottom + (top - bottom) / 2; | |
76212295 PS |
833 | if (!(center < top)) |
834 | abort (); | |
7f6cb62e KS |
835 | if (!do_linear_search |
836 | && (SYMBOL_LANGUAGE (*center) == language_cplus | |
837 | /* start-sanitize-java */ | |
838 | || SYMBOL_LANGUAGE (*center) == language_java | |
839 | /* end-sanitize-java */ | |
840 | )) | |
2e4964ad FF |
841 | { |
842 | do_linear_search = 1; | |
843 | } | |
b607efe7 | 844 | if (STRCMP (SYMBOL_NAME (*center), name) >= 0) |
2e4964ad FF |
845 | { |
846 | top = center; | |
847 | } | |
bd5635a1 | 848 | else |
2e4964ad FF |
849 | { |
850 | bottom = center + 1; | |
851 | } | |
bd5635a1 | 852 | } |
76212295 PS |
853 | if (!(top == bottom)) |
854 | abort (); | |
b607efe7 | 855 | while (STREQ (SYMBOL_NAME (*top), name)) |
bd5635a1 | 856 | { |
b607efe7 | 857 | if (SYMBOL_NAMESPACE (*top) == namespace) |
2e4964ad | 858 | { |
b607efe7 | 859 | return (*top); |
2e4964ad | 860 | } |
bd5635a1 RP |
861 | top ++; |
862 | } | |
863 | } | |
2e4964ad FF |
864 | |
865 | /* Can't use a binary search or else we found during the binary search that | |
866 | we should also do a linear search. */ | |
867 | ||
868 | if (do_linear_search) | |
bd5635a1 | 869 | { |
bd5635a1 | 870 | for (psym = start; psym < start + length; psym++) |
2e4964ad | 871 | { |
b607efe7 | 872 | if (namespace == SYMBOL_NAMESPACE (*psym)) |
2e4964ad | 873 | { |
b607efe7 | 874 | if (SYMBOL_MATCHES_NAME (*psym, name)) |
2e4964ad | 875 | { |
b607efe7 | 876 | return (*psym); |
2e4964ad FF |
877 | } |
878 | } | |
879 | } | |
bd5635a1 RP |
880 | } |
881 | ||
2e4964ad | 882 | return (NULL); |
bd5635a1 RP |
883 | } |
884 | ||
0e2a896c | 885 | /* Find the psymtab containing main(). */ |
c1878f87 SG |
886 | /* FIXME: What about languages without main() or specially linked |
887 | executables that have no main() ? */ | |
0e2a896c PB |
888 | |
889 | struct partial_symtab * | |
890 | find_main_psymtab () | |
891 | { | |
892 | register struct partial_symtab *pst; | |
cba0d141 JG |
893 | register struct objfile *objfile; |
894 | ||
35a25840 | 895 | ALL_PSYMTABS (objfile, pst) |
cba0d141 | 896 | { |
35a25840 | 897 | if (lookup_partial_symbol (pst, "main", 1, VAR_NAMESPACE)) |
cba0d141 | 898 | { |
35a25840 | 899 | return (pst); |
cba0d141 JG |
900 | } |
901 | } | |
902 | return (NULL); | |
0e2a896c PB |
903 | } |
904 | ||
2e4964ad FF |
905 | /* Search BLOCK for symbol NAME in NAMESPACE. |
906 | ||
907 | Note that if NAME is the demangled form of a C++ symbol, we will fail | |
908 | to find a match during the binary search of the non-encoded names, but | |
909 | for now we don't worry about the slight inefficiency of looking for | |
910 | a match we'll never find, since it will go pretty quick. Once the | |
911 | binary search terminates, we drop through and do a straight linear | |
912 | search on the symbols. Each symbol which is marked as being a C++ | |
913 | symbol (language_cplus set) has both the encoded and non-encoded names | |
914 | tested for a match. */ | |
bd5635a1 RP |
915 | |
916 | struct symbol * | |
917 | lookup_block_symbol (block, name, namespace) | |
cba0d141 JG |
918 | register const struct block *block; |
919 | const char *name; | |
1750a5ef | 920 | const namespace_enum namespace; |
bd5635a1 RP |
921 | { |
922 | register int bot, top, inc; | |
2e4964ad FF |
923 | register struct symbol *sym; |
924 | register struct symbol *sym_found = NULL; | |
925 | register int do_linear_search = 1; | |
bd5635a1 RP |
926 | |
927 | /* If the blocks's symbols were sorted, start with a binary search. */ | |
928 | ||
929 | if (BLOCK_SHOULD_SORT (block)) | |
930 | { | |
2e4964ad FF |
931 | /* Reset the linear search flag so if the binary search fails, we |
932 | won't do the linear search once unless we find some reason to | |
933 | do so, such as finding a C++ symbol during the binary search. | |
934 | Note that for C++ modules, ALL the symbols in a block should | |
935 | end up marked as C++ symbols. */ | |
936 | ||
937 | do_linear_search = 0; | |
938 | top = BLOCK_NSYMS (block); | |
939 | bot = 0; | |
940 | ||
941 | /* Advance BOT to not far before the first symbol whose name is NAME. */ | |
bd5635a1 RP |
942 | |
943 | while (1) | |
944 | { | |
945 | inc = (top - bot + 1); | |
946 | /* No need to keep binary searching for the last few bits worth. */ | |
947 | if (inc < 4) | |
2e4964ad FF |
948 | { |
949 | break; | |
950 | } | |
bd5635a1 RP |
951 | inc = (inc >> 1) + bot; |
952 | sym = BLOCK_SYM (block, inc); | |
7f6cb62e KS |
953 | if (!do_linear_search |
954 | && (SYMBOL_LANGUAGE (sym) == language_cplus | |
955 | /* start-sanitize-java */ | |
956 | || SYMBOL_LANGUAGE (sym) == language_java | |
957 | /* end-sanitize-java */ | |
958 | )) | |
2e4964ad FF |
959 | { |
960 | do_linear_search = 1; | |
961 | } | |
bd5635a1 | 962 | if (SYMBOL_NAME (sym)[0] < name[0]) |
2e4964ad FF |
963 | { |
964 | bot = inc; | |
965 | } | |
bd5635a1 | 966 | else if (SYMBOL_NAME (sym)[0] > name[0]) |
2e4964ad FF |
967 | { |
968 | top = inc; | |
969 | } | |
970 | else if (STRCMP (SYMBOL_NAME (sym), name) < 0) | |
971 | { | |
972 | bot = inc; | |
973 | } | |
bd5635a1 | 974 | else |
2e4964ad FF |
975 | { |
976 | top = inc; | |
977 | } | |
bd5635a1 RP |
978 | } |
979 | ||
f1ed4330 JK |
980 | /* Now scan forward until we run out of symbols, find one whose |
981 | name is greater than NAME, or find one we want. If there is | |
982 | more than one symbol with the right name and namespace, we | |
983 | return the first one; I believe it is now impossible for us | |
984 | to encounter two symbols with the same name and namespace | |
985 | here, because blocks containing argument symbols are no | |
986 | longer sorted. */ | |
bd5635a1 RP |
987 | |
988 | top = BLOCK_NSYMS (block); | |
989 | while (bot < top) | |
990 | { | |
991 | sym = BLOCK_SYM (block, bot); | |
992 | inc = SYMBOL_NAME (sym)[0] - name[0]; | |
993 | if (inc == 0) | |
2e4964ad FF |
994 | { |
995 | inc = STRCMP (SYMBOL_NAME (sym), name); | |
996 | } | |
bd5635a1 | 997 | if (inc == 0 && SYMBOL_NAMESPACE (sym) == namespace) |
2e4964ad FF |
998 | { |
999 | return (sym); | |
1000 | } | |
bd5635a1 | 1001 | if (inc > 0) |
2e4964ad FF |
1002 | { |
1003 | break; | |
1004 | } | |
bd5635a1 RP |
1005 | bot++; |
1006 | } | |
bd5635a1 RP |
1007 | } |
1008 | ||
2e4964ad FF |
1009 | /* Here if block isn't sorted, or we fail to find a match during the |
1010 | binary search above. If during the binary search above, we find a | |
1011 | symbol which is a C++ symbol, then we have re-enabled the linear | |
1012 | search flag which was reset when starting the binary search. | |
1013 | ||
1014 | This loop is equivalent to the loop above, but hacked greatly for speed. | |
bd5635a1 RP |
1015 | |
1016 | Note that parameter symbols do not always show up last in the | |
1017 | list; this loop makes sure to take anything else other than | |
1018 | parameter symbols first; it only uses parameter symbols as a | |
1019 | last resort. Note that this only takes up extra computation | |
1020 | time on a match. */ | |
1021 | ||
2e4964ad | 1022 | if (do_linear_search) |
bd5635a1 | 1023 | { |
2e4964ad FF |
1024 | top = BLOCK_NSYMS (block); |
1025 | bot = 0; | |
1026 | while (bot < top) | |
bd5635a1 | 1027 | { |
2e4964ad FF |
1028 | sym = BLOCK_SYM (block, bot); |
1029 | if (SYMBOL_NAMESPACE (sym) == namespace && | |
1030 | SYMBOL_MATCHES_NAME (sym, name)) | |
1031 | { | |
a259afcc JL |
1032 | /* If SYM has aliases, then use any alias that is active |
1033 | at the current PC. If no alias is active at the current | |
1034 | PC, then use the main symbol. | |
1035 | ||
1036 | ?!? Is checking the current pc correct? Is this routine | |
1037 | ever called to look up a symbol from another context? */ | |
d719efc6 | 1038 | if (SYMBOL_ALIASES (sym)) |
e21fb2ae | 1039 | sym = find_active_alias (sym, read_pc ()); |
d719efc6 | 1040 | |
2e4964ad FF |
1041 | sym_found = sym; |
1042 | if (SYMBOL_CLASS (sym) != LOC_ARG && | |
1043 | SYMBOL_CLASS (sym) != LOC_LOCAL_ARG && | |
1044 | SYMBOL_CLASS (sym) != LOC_REF_ARG && | |
f1ed4330 | 1045 | SYMBOL_CLASS (sym) != LOC_REGPARM && |
a1c8d76e JK |
1046 | SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR && |
1047 | SYMBOL_CLASS (sym) != LOC_BASEREG_ARG) | |
2e4964ad FF |
1048 | { |
1049 | break; | |
1050 | } | |
1051 | } | |
1052 | bot++; | |
bd5635a1 | 1053 | } |
bd5635a1 | 1054 | } |
2e4964ad | 1055 | return (sym_found); /* Will be NULL if not found. */ |
bd5635a1 | 1056 | } |
2e4964ad | 1057 | |
e21fb2ae MS |
1058 | /* Given a main symbol SYM and ADDR, search through the alias |
1059 | list to determine if an alias is active at ADDR and return | |
1060 | the active alias. | |
1061 | ||
1062 | If no alias is active, then return SYM. */ | |
1063 | ||
1064 | static struct symbol * | |
1065 | find_active_alias (sym, addr) | |
1066 | struct symbol *sym; | |
1067 | CORE_ADDR addr; | |
1068 | { | |
1069 | struct range_list *r; | |
1070 | struct alias_list *aliases; | |
1071 | ||
1072 | /* If we have aliases, check them first. */ | |
1073 | aliases = SYMBOL_ALIASES (sym); | |
1074 | ||
1075 | while (aliases) | |
1076 | { | |
1077 | if (!SYMBOL_RANGES (aliases->sym)) | |
1078 | return aliases->sym; | |
1079 | for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next) | |
1080 | { | |
1081 | if (r->start <= addr && r->end > addr) | |
1082 | return aliases->sym; | |
1083 | } | |
1084 | aliases = aliases->next; | |
1085 | } | |
1086 | ||
1087 | /* Nothing found, return the main symbol. */ | |
1088 | return sym; | |
1089 | } | |
1090 | ||
bd5635a1 RP |
1091 | \f |
1092 | /* Return the symbol for the function which contains a specified | |
1093 | lexical block, described by a struct block BL. */ | |
1094 | ||
1095 | struct symbol * | |
1096 | block_function (bl) | |
1097 | struct block *bl; | |
1098 | { | |
1099 | while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0) | |
1100 | bl = BLOCK_SUPERBLOCK (bl); | |
1101 | ||
1102 | return BLOCK_FUNCTION (bl); | |
1103 | } | |
1104 | ||
211b564e PS |
1105 | /* Find the symtab associated with PC and SECTION. Look through the |
1106 | psymtabs and read in another symtab if necessary. */ | |
bd5635a1 RP |
1107 | |
1108 | struct symtab * | |
211b564e PS |
1109 | find_pc_sect_symtab (pc, section) |
1110 | CORE_ADDR pc; | |
1111 | asection *section; | |
bd5635a1 RP |
1112 | { |
1113 | register struct block *b; | |
1114 | struct blockvector *bv; | |
45a655b0 | 1115 | register struct symtab *s = NULL; |
ca6a826d | 1116 | register struct symtab *best_s = NULL; |
bd5635a1 | 1117 | register struct partial_symtab *ps; |
cba0d141 | 1118 | register struct objfile *objfile; |
40b647e9 | 1119 | CORE_ADDR distance = 0; |
bd5635a1 | 1120 | |
018ab14f PS |
1121 | /* Search all symtabs for the one whose file contains our address, and which |
1122 | is the smallest of all the ones containing the address. This is designed | |
1123 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
1124 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
1125 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
76212295 PS |
1126 | |
1127 | This happens for native ecoff format, where code from included files | |
1128 | gets its own symtab. The symtab for the included file should have | |
1129 | been read in already via the dependency mechanism. | |
1130 | It might be swifter to create several symtabs with the same name | |
1131 | like xcoff does (I'm not sure). | |
1132 | ||
1133 | It also happens for objfiles that have their functions reordered. | |
1134 | For these, the symtab we are looking for is not necessarily read in. */ | |
bd5635a1 | 1135 | |
35a25840 | 1136 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 1137 | { |
35a25840 SG |
1138 | bv = BLOCKVECTOR (s); |
1139 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1140 | if (BLOCK_START (b) <= pc | |
ca6a826d PS |
1141 | && BLOCK_END (b) > pc |
1142 | && (distance == 0 | |
1143 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
1144 | { | |
76212295 PS |
1145 | /* For an objfile that has its functions reordered, |
1146 | find_pc_psymtab will find the proper partial symbol table | |
1147 | and we simply return its corresponding symtab. */ | |
211b564e PS |
1148 | /* In order to better support objfiles that contain both |
1149 | stabs and coff debugging info, we continue on if a psymtab | |
1150 | can't be found. */ | |
b607efe7 | 1151 | if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs) |
76212295 | 1152 | { |
211b564e | 1153 | ps = find_pc_sect_psymtab (pc, section); |
76212295 | 1154 | if (ps) |
211b564e PS |
1155 | return PSYMTAB_TO_SYMTAB (ps); |
1156 | } | |
1157 | if (section != 0) | |
1158 | { | |
1159 | int i; | |
1160 | ||
1161 | for (i = 0; i < b->nsyms; i++) | |
1162 | { | |
1163 | fixup_symbol_section (b->sym[i], objfile); | |
1164 | if (section == SYMBOL_BFD_SECTION (b->sym[i])) | |
1165 | break; | |
1166 | } | |
1167 | if (i >= b->nsyms) | |
1168 | continue; /* no symbol in this symtab matches section */ | |
76212295 | 1169 | } |
ca6a826d PS |
1170 | distance = BLOCK_END (b) - BLOCK_START (b); |
1171 | best_s = s; | |
1172 | } | |
bd5635a1 RP |
1173 | } |
1174 | ||
ca6a826d PS |
1175 | if (best_s != NULL) |
1176 | return(best_s); | |
1177 | ||
45a655b0 | 1178 | s = NULL; |
211b564e | 1179 | ps = find_pc_sect_psymtab (pc, section); |
c1878f87 | 1180 | if (ps) |
bd5635a1 | 1181 | { |
c1878f87 | 1182 | if (ps->readin) |
ac82e9a5 JK |
1183 | /* Might want to error() here (in case symtab is corrupt and |
1184 | will cause a core dump), but maybe we can successfully | |
1185 | continue, so let's not. */ | |
e3d6ec4a | 1186 | /* FIXME-32x64: assumes pc fits in a long */ |
ac82e9a5 | 1187 | warning ("\ |
5573d7d4 JK |
1188 | (Internal error: pc 0x%lx in read in psymtab, but not in symtab.)\n", |
1189 | (unsigned long) pc); | |
c1878f87 | 1190 | s = PSYMTAB_TO_SYMTAB (ps); |
bd5635a1 | 1191 | } |
45a655b0 | 1192 | return (s); |
bd5635a1 | 1193 | } |
211b564e PS |
1194 | |
1195 | /* Find the symtab associated with PC. Look through the psymtabs and | |
1196 | read in another symtab if necessary. Backward compatibility, no section */ | |
1197 | ||
1198 | struct symtab * | |
1199 | find_pc_symtab (pc) | |
1200 | CORE_ADDR pc; | |
1201 | { | |
1202 | return find_pc_sect_symtab (pc, find_pc_mapped_section (pc)); | |
1203 | } | |
1204 | ||
e0ea0fbd | 1205 | \f |
a0cf4681 JK |
1206 | #if 0 |
1207 | ||
e0ea0fbd | 1208 | /* Find the closest symbol value (of any sort -- function or variable) |
a0cf4681 JK |
1209 | for a given address value. Slow but complete. (currently unused, |
1210 | mainly because it is too slow. We could fix it if each symtab and | |
1211 | psymtab had contained in it the addresses ranges of each of its | |
1212 | sections, which also would be required to make things like "info | |
1213 | line *0x2345" cause psymtabs to be converted to symtabs). */ | |
e0ea0fbd JG |
1214 | |
1215 | struct symbol * | |
87041845 | 1216 | find_addr_symbol (addr, symtabp, symaddrp) |
e0ea0fbd | 1217 | CORE_ADDR addr; |
87041845 JK |
1218 | struct symtab **symtabp; |
1219 | CORE_ADDR *symaddrp; | |
e0ea0fbd | 1220 | { |
87041845 | 1221 | struct symtab *symtab, *best_symtab; |
e0ea0fbd JG |
1222 | struct objfile *objfile; |
1223 | register int bot, top; | |
1224 | register struct symbol *sym; | |
1225 | register CORE_ADDR sym_addr; | |
1226 | struct block *block; | |
1227 | int blocknum; | |
1228 | ||
1229 | /* Info on best symbol seen so far */ | |
1230 | ||
1231 | register CORE_ADDR best_sym_addr = 0; | |
1232 | struct symbol *best_sym = 0; | |
1233 | ||
1234 | /* FIXME -- we should pull in all the psymtabs, too! */ | |
1235 | ALL_SYMTABS (objfile, symtab) | |
1236 | { | |
1237 | /* Search the global and static blocks in this symtab for | |
1238 | the closest symbol-address to the desired address. */ | |
1239 | ||
1240 | for (blocknum = GLOBAL_BLOCK; blocknum <= STATIC_BLOCK; blocknum++) | |
1241 | { | |
1242 | QUIT; | |
1243 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), blocknum); | |
1244 | top = BLOCK_NSYMS (block); | |
1245 | for (bot = 0; bot < top; bot++) | |
1246 | { | |
1247 | sym = BLOCK_SYM (block, bot); | |
1248 | switch (SYMBOL_CLASS (sym)) | |
1249 | { | |
1250 | case LOC_STATIC: | |
1251 | case LOC_LABEL: | |
1252 | sym_addr = SYMBOL_VALUE_ADDRESS (sym); | |
1253 | break; | |
1254 | ||
1255 | case LOC_BLOCK: | |
1256 | sym_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
1257 | break; | |
1258 | ||
1259 | default: | |
1260 | continue; | |
1261 | } | |
1262 | ||
1263 | if (sym_addr <= addr) | |
1264 | if (sym_addr > best_sym_addr) | |
1265 | { | |
1266 | /* Quit if we found an exact match. */ | |
e0ea0fbd JG |
1267 | best_sym = sym; |
1268 | best_sym_addr = sym_addr; | |
87041845 JK |
1269 | best_symtab = symtab; |
1270 | if (sym_addr == addr) | |
1271 | goto done; | |
e0ea0fbd JG |
1272 | } |
1273 | } | |
1274 | } | |
1275 | } | |
87041845 JK |
1276 | |
1277 | done: | |
1278 | if (symtabp) | |
1279 | *symtabp = best_symtab; | |
1280 | if (symaddrp) | |
1281 | *symaddrp = best_sym_addr; | |
e0ea0fbd JG |
1282 | return best_sym; |
1283 | } | |
a0cf4681 | 1284 | #endif /* 0 */ |
bd5635a1 | 1285 | |
211b564e | 1286 | /* Find the source file and line number for a given PC value and section. |
bd5635a1 RP |
1287 | Return a structure containing a symtab pointer, a line number, |
1288 | and a pc range for the entire source line. | |
1289 | The value's .pc field is NOT the specified pc. | |
1290 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
1291 | use the line that ends there. Otherwise, in that case, the line | |
1292 | that begins there is used. */ | |
1293 | ||
b638ca91 SG |
1294 | /* The big complication here is that a line may start in one file, and end just |
1295 | before the start of another file. This usually occurs when you #include | |
1296 | code in the middle of a subroutine. To properly find the end of a line's PC | |
1297 | range, we must search all symtabs associated with this compilation unit, and | |
1298 | find the one whose first PC is closer than that of the next line in this | |
01d3fdba | 1299 | symtab. */ |
b638ca91 | 1300 | |
d34d6f75 JK |
1301 | /* If it's worth the effort, we could be using a binary search. */ |
1302 | ||
bd5635a1 | 1303 | struct symtab_and_line |
211b564e | 1304 | find_pc_sect_line (pc, section, notcurrent) |
bd5635a1 | 1305 | CORE_ADDR pc; |
211b564e | 1306 | struct sec *section; |
bd5635a1 RP |
1307 | int notcurrent; |
1308 | { | |
1309 | struct symtab *s; | |
1310 | register struct linetable *l; | |
1311 | register int len; | |
1312 | register int i; | |
b638ca91 | 1313 | register struct linetable_entry *item; |
bd5635a1 RP |
1314 | struct symtab_and_line val; |
1315 | struct blockvector *bv; | |
1316 | ||
1317 | /* Info on best line seen so far, and where it starts, and its file. */ | |
1318 | ||
b638ca91 | 1319 | struct linetable_entry *best = NULL; |
bd5635a1 RP |
1320 | CORE_ADDR best_end = 0; |
1321 | struct symtab *best_symtab = 0; | |
1322 | ||
1323 | /* Store here the first line number | |
1324 | of a file which contains the line at the smallest pc after PC. | |
1325 | If we don't find a line whose range contains PC, | |
1326 | we will use a line one less than this, | |
1327 | with a range from the start of that file to the first line's pc. */ | |
b638ca91 | 1328 | struct linetable_entry *alt = NULL; |
bd5635a1 RP |
1329 | struct symtab *alt_symtab = 0; |
1330 | ||
1331 | /* Info on best line seen in this file. */ | |
1332 | ||
b638ca91 | 1333 | struct linetable_entry *prev; |
bd5635a1 RP |
1334 | |
1335 | /* If this pc is not from the current frame, | |
1336 | it is the address of the end of a call instruction. | |
1337 | Quite likely that is the start of the following statement. | |
1338 | But what we want is the statement containing the instruction. | |
1339 | Fudge the pc to make sure we get that. */ | |
1340 | ||
07422705 PS |
1341 | INIT_SAL (&val); /* initialize to zeroes */ |
1342 | ||
211b564e | 1343 | if (notcurrent) |
07422705 | 1344 | pc -= 1; |
bd5635a1 | 1345 | |
211b564e | 1346 | s = find_pc_sect_symtab (pc, section); |
c1878f87 | 1347 | if (!s) |
bd5635a1 | 1348 | { |
79f15b12 DE |
1349 | /* if no symbol information, return previous pc */ |
1350 | if (notcurrent) | |
1351 | pc++; | |
bd5635a1 | 1352 | val.pc = pc; |
bd5635a1 RP |
1353 | return val; |
1354 | } | |
1355 | ||
1356 | bv = BLOCKVECTOR (s); | |
1357 | ||
1358 | /* Look at all the symtabs that share this blockvector. | |
1359 | They all have the same apriori range, that we found was right; | |
1360 | but they have different line tables. */ | |
1361 | ||
1362 | for (; s && BLOCKVECTOR (s) == bv; s = s->next) | |
1363 | { | |
1364 | /* Find the best line in this symtab. */ | |
1365 | l = LINETABLE (s); | |
4137c5fc JG |
1366 | if (!l) |
1367 | continue; | |
bd5635a1 | 1368 | len = l->nitems; |
01d3fdba | 1369 | if (len <= 0) |
c1878f87 | 1370 | { |
01d3fdba JK |
1371 | /* I think len can be zero if the symtab lacks line numbers |
1372 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
1373 | I'm not sure which, and maybe it depends on the symbol | |
1374 | reader). */ | |
c1878f87 SG |
1375 | continue; |
1376 | } | |
1377 | ||
b638ca91 SG |
1378 | prev = NULL; |
1379 | item = l->item; /* Get first line info */ | |
c1878f87 SG |
1380 | |
1381 | /* Is this file's first line closer than the first lines of other files? | |
1382 | If so, record this file, and its first line, as best alternate. */ | |
b638ca91 | 1383 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
c1878f87 SG |
1384 | { |
1385 | alt = item; | |
1386 | alt_symtab = s; | |
1387 | } | |
1388 | ||
b638ca91 | 1389 | for (i = 0; i < len; i++, item++) |
bd5635a1 | 1390 | { |
b607efe7 FF |
1391 | /* Leave prev pointing to the linetable entry for the last line |
1392 | that started at or before PC. */ | |
b638ca91 | 1393 | if (item->pc > pc) |
bd5635a1 | 1394 | break; |
c1878f87 SG |
1395 | |
1396 | prev = item; | |
bd5635a1 RP |
1397 | } |
1398 | ||
c1878f87 SG |
1399 | /* At this point, prev points at the line whose start addr is <= pc, and |
1400 | item points at the next line. If we ran off the end of the linetable | |
1401 | (pc >= start of the last line), then prev == item. If pc < start of | |
1402 | the first line, prev will not be set. */ | |
1403 | ||
bd5635a1 RP |
1404 | /* Is this file's best line closer than the best in the other files? |
1405 | If so, record this file, and its best line, as best so far. */ | |
c1878f87 | 1406 | |
b638ca91 | 1407 | if (prev && (!best || prev->pc > best->pc)) |
bd5635a1 | 1408 | { |
c1878f87 | 1409 | best = prev; |
bd5635a1 | 1410 | best_symtab = s; |
cba0d141 JG |
1411 | /* If another line is in the linetable, and its PC is closer |
1412 | than the best_end we currently have, take it as best_end. */ | |
b638ca91 SG |
1413 | if (i < len && (best_end == 0 || best_end > item->pc)) |
1414 | best_end = item->pc; | |
bd5635a1 RP |
1415 | } |
1416 | } | |
c1878f87 SG |
1417 | |
1418 | if (!best_symtab) | |
bd5635a1 | 1419 | { |
c1878f87 SG |
1420 | if (!alt_symtab) |
1421 | { /* If we didn't find any line # info, just | |
07422705 | 1422 | return zeros. */ |
c1878f87 | 1423 | val.pc = pc; |
c1878f87 SG |
1424 | } |
1425 | else | |
1426 | { | |
1427 | val.symtab = alt_symtab; | |
b638ca91 | 1428 | val.line = alt->line - 1; |
2b576293 C |
1429 | |
1430 | /* Don't return line 0, that means that we didn't find the line. */ | |
1431 | if (val.line == 0) ++val.line; | |
1432 | ||
c1878f87 | 1433 | val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); |
b638ca91 | 1434 | val.end = alt->pc; |
c1878f87 | 1435 | } |
bd5635a1 RP |
1436 | } |
1437 | else | |
1438 | { | |
1439 | val.symtab = best_symtab; | |
b638ca91 SG |
1440 | val.line = best->line; |
1441 | val.pc = best->pc; | |
1442 | if (best_end && (!alt || best_end < alt->pc)) | |
cba0d141 | 1443 | val.end = best_end; |
a8a69e63 | 1444 | else if (alt) |
b638ca91 | 1445 | val.end = alt->pc; |
cba0d141 JG |
1446 | else |
1447 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
bd5635a1 | 1448 | } |
211b564e | 1449 | val.section = section; |
bd5635a1 RP |
1450 | return val; |
1451 | } | |
211b564e PS |
1452 | |
1453 | /* Backward compatibility (no section) */ | |
1454 | ||
1455 | struct symtab_and_line | |
1456 | find_pc_line (pc, notcurrent) | |
1457 | CORE_ADDR pc; | |
1458 | int notcurrent; | |
1459 | { | |
1460 | asection *section; | |
1461 | ||
1462 | section = find_pc_overlay (pc); | |
1463 | if (pc_in_unmapped_range (pc, section)) | |
1464 | pc = overlay_mapped_address (pc, section); | |
1465 | return find_pc_sect_line (pc, section, notcurrent); | |
1466 | } | |
1467 | ||
bd5635a1 | 1468 | \f |
018ab14f PS |
1469 | static int find_line_symtab PARAMS ((struct symtab *, int, struct linetable **, |
1470 | int *, int *)); | |
1471 | ||
1472 | /* Find line number LINE in any symtab whose name is the same as | |
1473 | SYMTAB. | |
1474 | ||
1475 | If found, return 1, set *LINETABLE to the linetable in which it was | |
1476 | found, set *INDEX to the index in the linetable of the best entry | |
1477 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
1478 | exact match. | |
1479 | ||
1480 | If not found, return 0. */ | |
1481 | ||
1482 | static int | |
1483 | find_line_symtab (symtab, line, linetable, index, exact_match) | |
1484 | struct symtab *symtab; | |
1485 | int line; | |
1486 | struct linetable **linetable; | |
1487 | int *index; | |
1488 | int *exact_match; | |
1489 | { | |
1490 | int exact; | |
1491 | ||
1492 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
1493 | so far seen. */ | |
1494 | ||
1495 | int best_index; | |
1496 | struct linetable *best_linetable; | |
1497 | ||
1498 | /* First try looking it up in the given symtab. */ | |
1499 | best_linetable = LINETABLE (symtab); | |
1500 | best_index = find_line_common (best_linetable, line, &exact); | |
1501 | if (best_index < 0 || !exact) | |
1502 | { | |
1503 | /* Didn't find an exact match. So we better keep looking for | |
1504 | another symtab with the same name. In the case of xcoff, | |
1505 | multiple csects for one source file (produced by IBM's FORTRAN | |
1506 | compiler) produce multiple symtabs (this is unavoidable | |
1507 | assuming csects can be at arbitrary places in memory and that | |
1508 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
1509 | ||
1510 | /* BEST is the smallest linenumber > LINE so far seen, | |
1511 | or 0 if none has been seen so far. | |
1512 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
1513 | int best; | |
1514 | ||
1515 | struct objfile *objfile; | |
1516 | struct symtab *s; | |
1517 | ||
1518 | if (best_index >= 0) | |
1519 | best = best_linetable->item[best_index].line; | |
1520 | else | |
1521 | best = 0; | |
1522 | ||
1523 | ALL_SYMTABS (objfile, s) | |
1524 | { | |
1525 | struct linetable *l; | |
1526 | int ind; | |
1527 | ||
1528 | if (!STREQ (symtab->filename, s->filename)) | |
1529 | continue; | |
1530 | l = LINETABLE (s); | |
1531 | ind = find_line_common (l, line, &exact); | |
1532 | if (ind >= 0) | |
1533 | { | |
1534 | if (exact) | |
1535 | { | |
1536 | best_index = ind; | |
1537 | best_linetable = l; | |
1538 | goto done; | |
1539 | } | |
1540 | if (best == 0 || l->item[ind].line < best) | |
1541 | { | |
1542 | best = l->item[ind].line; | |
1543 | best_index = ind; | |
1544 | best_linetable = l; | |
1545 | } | |
1546 | } | |
1547 | } | |
1548 | } | |
1549 | done: | |
1550 | if (best_index < 0) | |
1551 | return 0; | |
1552 | ||
1553 | if (index) | |
1554 | *index = best_index; | |
1555 | if (linetable) | |
1556 | *linetable = best_linetable; | |
1557 | if (exact_match) | |
1558 | *exact_match = exact; | |
1559 | return 1; | |
1560 | } | |
1561 | \f | |
7f6cb62e KS |
1562 | /* Set the PC value for a given source file and line number and return true. |
1563 | Returns zero for invalid line number (and sets the PC to 0). | |
bd5635a1 RP |
1564 | The source file is specified with a struct symtab. */ |
1565 | ||
7f6cb62e KS |
1566 | int |
1567 | find_line_pc (symtab, line, pc) | |
bd5635a1 RP |
1568 | struct symtab *symtab; |
1569 | int line; | |
7f6cb62e | 1570 | CORE_ADDR *pc; |
bd5635a1 | 1571 | { |
018ab14f PS |
1572 | struct linetable *l; |
1573 | int ind; | |
bd5635a1 | 1574 | |
7f6cb62e | 1575 | *pc = 0; |
bd5635a1 RP |
1576 | if (symtab == 0) |
1577 | return 0; | |
7f6cb62e | 1578 | |
018ab14f | 1579 | if (find_line_symtab (symtab, line, &l, &ind, NULL)) |
7f6cb62e KS |
1580 | { |
1581 | *pc = l->item[ind].pc; | |
1582 | return 1; | |
1583 | } | |
018ab14f PS |
1584 | else |
1585 | return 0; | |
bd5635a1 RP |
1586 | } |
1587 | ||
1588 | /* Find the range of pc values in a line. | |
1589 | Store the starting pc of the line into *STARTPTR | |
1590 | and the ending pc (start of next line) into *ENDPTR. | |
1591 | Returns 1 to indicate success. | |
1592 | Returns 0 if could not find the specified line. */ | |
1593 | ||
1594 | int | |
b86a1b3b JK |
1595 | find_line_pc_range (sal, startptr, endptr) |
1596 | struct symtab_and_line sal; | |
bd5635a1 RP |
1597 | CORE_ADDR *startptr, *endptr; |
1598 | { | |
b86a1b3b JK |
1599 | CORE_ADDR startaddr; |
1600 | struct symtab_and_line found_sal; | |
bd5635a1 | 1601 | |
b86a1b3b | 1602 | startaddr = sal.pc; |
7f6cb62e | 1603 | if (startaddr==0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
bd5635a1 RP |
1604 | return 0; |
1605 | ||
b86a1b3b JK |
1606 | /* This whole function is based on address. For example, if line 10 has |
1607 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
1608 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
1609 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
1610 | This also insures that we never give a range like "starts at 0x134 | |
1611 | and ends at 0x12c". */ | |
1612 | ||
211b564e | 1613 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); |
b86a1b3b | 1614 | if (found_sal.line != sal.line) |
bd5635a1 | 1615 | { |
b86a1b3b JK |
1616 | /* The specified line (sal) has zero bytes. */ |
1617 | *startptr = found_sal.pc; | |
1618 | *endptr = found_sal.pc; | |
bd5635a1 | 1619 | } |
b86a1b3b JK |
1620 | else |
1621 | { | |
1622 | *startptr = found_sal.pc; | |
1623 | *endptr = found_sal.end; | |
1624 | } | |
1625 | return 1; | |
bd5635a1 RP |
1626 | } |
1627 | ||
1628 | /* Given a line table and a line number, return the index into the line | |
1629 | table for the pc of the nearest line whose number is >= the specified one. | |
b203fc18 | 1630 | Return -1 if none is found. The value is >= 0 if it is an index. |
bd5635a1 RP |
1631 | |
1632 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
1633 | ||
1634 | static int | |
1635 | find_line_common (l, lineno, exact_match) | |
1636 | register struct linetable *l; | |
1637 | register int lineno; | |
1638 | int *exact_match; | |
1639 | { | |
1640 | register int i; | |
1641 | register int len; | |
1642 | ||
1643 | /* BEST is the smallest linenumber > LINENO so far seen, | |
1644 | or 0 if none has been seen so far. | |
1645 | BEST_INDEX identifies the item for it. */ | |
1646 | ||
b203fc18 | 1647 | int best_index = -1; |
bd5635a1 RP |
1648 | int best = 0; |
1649 | ||
1650 | if (lineno <= 0) | |
b203fc18 | 1651 | return -1; |
4137c5fc JG |
1652 | if (l == 0) |
1653 | return -1; | |
bd5635a1 RP |
1654 | |
1655 | len = l->nitems; | |
1656 | for (i = 0; i < len; i++) | |
1657 | { | |
1658 | register struct linetable_entry *item = &(l->item[i]); | |
1659 | ||
1660 | if (item->line == lineno) | |
1661 | { | |
d34d6f75 | 1662 | /* Return the first (lowest address) entry which matches. */ |
bd5635a1 RP |
1663 | *exact_match = 1; |
1664 | return i; | |
1665 | } | |
1666 | ||
1667 | if (item->line > lineno && (best == 0 || item->line < best)) | |
1668 | { | |
1669 | best = item->line; | |
1670 | best_index = i; | |
1671 | } | |
1672 | } | |
1673 | ||
1674 | /* If we got here, we didn't get an exact match. */ | |
1675 | ||
1676 | *exact_match = 0; | |
1677 | return best_index; | |
1678 | } | |
1679 | ||
1680 | int | |
1681 | find_pc_line_pc_range (pc, startptr, endptr) | |
1682 | CORE_ADDR pc; | |
1683 | CORE_ADDR *startptr, *endptr; | |
1684 | { | |
1685 | struct symtab_and_line sal; | |
1686 | sal = find_pc_line (pc, 0); | |
1687 | *startptr = sal.pc; | |
1688 | *endptr = sal.end; | |
1689 | return sal.symtab != 0; | |
1690 | } | |
76212295 PS |
1691 | |
1692 | /* Given a function symbol SYM, find the symtab and line for the start | |
1693 | of the function. | |
1694 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
1695 | of real code inside the function. */ | |
1696 | ||
1697 | static struct symtab_and_line | |
1698 | find_function_start_sal PARAMS ((struct symbol *sym, int)); | |
1699 | ||
1700 | static struct symtab_and_line | |
1701 | find_function_start_sal (sym, funfirstline) | |
1702 | struct symbol *sym; | |
1703 | int funfirstline; | |
1704 | { | |
1705 | CORE_ADDR pc; | |
1706 | struct symtab_and_line sal; | |
1707 | ||
1708 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
211b564e | 1709 | fixup_symbol_section (sym, NULL); |
76212295 | 1710 | if (funfirstline) |
211b564e PS |
1711 | { /* skip "first line" of function (which is actually its prologue) */ |
1712 | asection *section = SYMBOL_BFD_SECTION (sym); | |
1713 | /* If function is in an unmapped overlay, use its unmapped LMA | |
1714 | address, so that SKIP_PROLOGUE has something unique to work on */ | |
1715 | if (section_is_overlay (section) && | |
1716 | !section_is_mapped (section)) | |
1717 | pc = overlay_unmapped_address (pc, section); | |
1718 | ||
76212295 PS |
1719 | pc += FUNCTION_START_OFFSET; |
1720 | SKIP_PROLOGUE (pc); | |
211b564e PS |
1721 | |
1722 | /* For overlays, map pc back into its mapped VMA range */ | |
1723 | pc = overlay_mapped_address (pc, section); | |
76212295 | 1724 | } |
211b564e | 1725 | sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0); |
76212295 PS |
1726 | |
1727 | #ifdef PROLOGUE_FIRSTLINE_OVERLAP | |
1728 | /* Convex: no need to suppress code on first line, if any */ | |
1729 | sal.pc = pc; | |
1730 | #else | |
1731 | /* Check if SKIP_PROLOGUE left us in mid-line, and the next | |
1732 | line is still part of the same function. */ | |
1733 | if (sal.pc != pc | |
1734 | && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end | |
1735 | && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
1736 | { | |
1737 | /* First pc of next line */ | |
1738 | pc = sal.end; | |
1739 | /* Recalculate the line number (might not be N+1). */ | |
211b564e | 1740 | sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0); |
76212295 PS |
1741 | } |
1742 | sal.pc = pc; | |
1743 | #endif | |
1744 | ||
1745 | return sal; | |
1746 | } | |
bd5635a1 | 1747 | \f |
d96b54ea JK |
1748 | /* If P is of the form "operator[ \t]+..." where `...' is |
1749 | some legitimate operator text, return a pointer to the | |
1750 | beginning of the substring of the operator text. | |
1751 | Otherwise, return "". */ | |
a46d92a7 | 1752 | char * |
d96b54ea JK |
1753 | operator_chars (p, end) |
1754 | char *p; | |
1755 | char **end; | |
1756 | { | |
1757 | *end = ""; | |
1758 | if (strncmp (p, "operator", 8)) | |
1759 | return *end; | |
1760 | p += 8; | |
1761 | ||
1762 | /* Don't get faked out by `operator' being part of a longer | |
1763 | identifier. */ | |
2cd99985 | 1764 | if (isalpha(*p) || *p == '_' || *p == '$' || *p == '\0') |
d96b54ea JK |
1765 | return *end; |
1766 | ||
1767 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
1768 | while (*p == ' ' || *p == '\t') | |
1769 | p++; | |
1770 | ||
2cd99985 PB |
1771 | /* Recognize 'operator TYPENAME'. */ |
1772 | ||
1773 | if (isalpha(*p) || *p == '_' || *p == '$') | |
1774 | { | |
1775 | register char *q = p+1; | |
1776 | while (isalnum(*q) || *q == '_' || *q == '$') | |
1777 | q++; | |
1778 | *end = q; | |
1779 | return p; | |
1780 | } | |
1781 | ||
d96b54ea JK |
1782 | switch (*p) |
1783 | { | |
1784 | case '!': | |
1785 | case '=': | |
1786 | case '*': | |
1787 | case '/': | |
1788 | case '%': | |
1789 | case '^': | |
1790 | if (p[1] == '=') | |
1791 | *end = p+2; | |
1792 | else | |
1793 | *end = p+1; | |
1794 | return p; | |
1795 | case '<': | |
1796 | case '>': | |
1797 | case '+': | |
1798 | case '-': | |
1799 | case '&': | |
1800 | case '|': | |
1801 | if (p[1] == '=' || p[1] == p[0]) | |
1802 | *end = p+2; | |
1803 | else | |
1804 | *end = p+1; | |
1805 | return p; | |
1806 | case '~': | |
1807 | case ',': | |
1808 | *end = p+1; | |
1809 | return p; | |
1810 | case '(': | |
1811 | if (p[1] != ')') | |
1812 | error ("`operator ()' must be specified without whitespace in `()'"); | |
1813 | *end = p+2; | |
1814 | return p; | |
1815 | case '?': | |
1816 | if (p[1] != ':') | |
1817 | error ("`operator ?:' must be specified without whitespace in `?:'"); | |
1818 | *end = p+2; | |
1819 | return p; | |
1820 | case '[': | |
1821 | if (p[1] != ']') | |
1822 | error ("`operator []' must be specified without whitespace in `[]'"); | |
1823 | *end = p+2; | |
1824 | return p; | |
1825 | default: | |
1826 | error ("`operator %s' not supported", p); | |
1827 | break; | |
1828 | } | |
1829 | *end = ""; | |
1830 | return *end; | |
1831 | } | |
1832 | ||
2b576293 C |
1833 | /* Return the number of methods described for TYPE, including the |
1834 | methods from types it derives from. This can't be done in the symbol | |
1835 | reader because the type of the baseclass might still be stubbed | |
1836 | when the definition of the derived class is parsed. */ | |
1837 | ||
1838 | static int total_number_of_methods PARAMS ((struct type *type)); | |
1839 | ||
1840 | static int | |
1841 | total_number_of_methods (type) | |
1842 | struct type *type; | |
1843 | { | |
1844 | int n; | |
1845 | int count; | |
1846 | ||
940d5967 | 1847 | CHECK_TYPEDEF (type); |
211b564e PS |
1848 | if (TYPE_CPLUS_SPECIFIC (type) == NULL) |
1849 | return 0; | |
2b576293 C |
1850 | count = TYPE_NFN_FIELDS_TOTAL (type); |
1851 | ||
1852 | for (n = 0; n < TYPE_N_BASECLASSES (type); n++) | |
1853 | count += total_number_of_methods (TYPE_BASECLASS (type, n)); | |
1854 | ||
1855 | return count; | |
1856 | } | |
1857 | ||
bd5635a1 | 1858 | /* Recursive helper function for decode_line_1. |
2b576293 C |
1859 | Look for methods named NAME in type T. |
1860 | Return number of matches. | |
1861 | Put matches in SYM_ARR, which should have been allocated with | |
1862 | a size of total_number_of_methods (T) * sizeof (struct symbol *). | |
1863 | Note that this function is g++ specific. */ | |
bd5635a1 | 1864 | |
7f6cb62e | 1865 | static int |
2e4964ad | 1866 | find_methods (t, name, sym_arr) |
bd5635a1 RP |
1867 | struct type *t; |
1868 | char *name; | |
bd5635a1 RP |
1869 | struct symbol **sym_arr; |
1870 | { | |
1871 | int i1 = 0; | |
1872 | int ibase; | |
1873 | struct symbol *sym_class; | |
1874 | char *class_name = type_name_no_tag (t); | |
7f6cb62e | 1875 | |
d34d6f75 JK |
1876 | /* Ignore this class if it doesn't have a name. This is ugly, but |
1877 | unless we figure out how to get the physname without the name of | |
1878 | the class, then the loop can't do any good. */ | |
bd5635a1 RP |
1879 | if (class_name |
1880 | && (sym_class = lookup_symbol (class_name, | |
1881 | (struct block *)NULL, | |
1882 | STRUCT_NAMESPACE, | |
1883 | (int *)NULL, | |
1884 | (struct symtab **)NULL))) | |
1885 | { | |
1886 | int method_counter; | |
7f6cb62e | 1887 | |
940d5967 | 1888 | /* FIXME: Shouldn't this just be CHECK_TYPEDEF (t)? */ |
bd5635a1 | 1889 | t = SYMBOL_TYPE (sym_class); |
7f6cb62e KS |
1890 | |
1891 | /* Loop over each method name. At this level, all overloads of a name | |
1892 | are counted as a single name. There is an inner loop which loops over | |
1893 | each overload. */ | |
1894 | ||
bd5635a1 RP |
1895 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; |
1896 | method_counter >= 0; | |
1897 | --method_counter) | |
1898 | { | |
1899 | int field_counter; | |
bd5635a1 | 1900 | char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
d0cde99c PS |
1901 | char dem_opname[64]; |
1902 | ||
7f6cb62e KS |
1903 | if (strncmp (method_name, "__", 2) == 0 || |
1904 | strncmp (method_name, "op", 2) == 0 || | |
1905 | strncmp (method_name, "type", 4) == 0) | |
1906 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
1907 | method_name = dem_opname; | |
1908 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
1909 | method_name = dem_opname; | |
1910 | ||
2e4964ad | 1911 | if (STREQ (name, method_name)) |
7f6cb62e | 1912 | /* Find all the overloaded methods with that name. */ |
bd5635a1 RP |
1913 | for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; |
1914 | field_counter >= 0; | |
1915 | --field_counter) | |
1916 | { | |
7f6cb62e | 1917 | struct fn_field *f; |
bd5635a1 | 1918 | char *phys_name; |
7f6cb62e KS |
1919 | |
1920 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
1921 | ||
7e258d18 | 1922 | if (TYPE_FN_FIELD_STUB (f, field_counter)) |
7f6cb62e KS |
1923 | { |
1924 | char *tmp_name; | |
1925 | ||
1926 | tmp_name = gdb_mangle_name (t, | |
1927 | method_counter, | |
1928 | field_counter); | |
1929 | phys_name = alloca (strlen (tmp_name) + 1); | |
1930 | strcpy (phys_name, tmp_name); | |
1931 | free (tmp_name); | |
1932 | } | |
1933 | else | |
1934 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
1935 | ||
ca6a826d PS |
1936 | /* Destructor is handled by caller, dont add it to the list */ |
1937 | if (DESTRUCTOR_PREFIX_P (phys_name)) | |
1938 | continue; | |
d34d6f75 | 1939 | |
bd5635a1 | 1940 | sym_arr[i1] = lookup_symbol (phys_name, |
a46d92a7 | 1941 | NULL, VAR_NAMESPACE, |
bd5635a1 RP |
1942 | (int *) NULL, |
1943 | (struct symtab **) NULL); | |
a46d92a7 PS |
1944 | if (sym_arr[i1]) |
1945 | i1++; | |
2cd99985 PB |
1946 | else |
1947 | { | |
7f6cb62e KS |
1948 | /* This error message gets printed, but the method |
1949 | still seems to be found | |
1950 | fputs_filtered("(Cannot find method ", gdb_stdout); | |
1951 | fprintf_symbol_filtered (gdb_stdout, phys_name, | |
1952 | language_cplus, | |
1953 | DMGL_PARAMS | DMGL_ANSI); | |
1954 | fputs_filtered(" - possibly inlined.)\n", gdb_stdout); | |
1955 | */ | |
2cd99985 | 1956 | } |
bd5635a1 RP |
1957 | } |
1958 | } | |
1959 | } | |
d34d6f75 JK |
1960 | |
1961 | /* Only search baseclasses if there is no match yet, since names in | |
1962 | derived classes override those in baseclasses. | |
1963 | ||
1964 | FIXME: The above is not true; it is only true of member functions | |
1965 | if they have the same number of arguments (??? - section 13.1 of the | |
1966 | ARM says the function members are not in the same scope but doesn't | |
1967 | really spell out the rules in a way I understand. In any case, if | |
1968 | the number of arguments differ this is a case in which we can overload | |
1969 | rather than hiding without any problem, and gcc 2.4.5 does overload | |
1970 | rather than hiding in this case). */ | |
1971 | ||
7f6cb62e KS |
1972 | if (i1 == 0) |
1973 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) | |
1974 | i1 += find_methods (TYPE_BASECLASS (t, ibase), name, sym_arr + i1); | |
1975 | ||
bd5635a1 RP |
1976 | return i1; |
1977 | } | |
1978 | ||
6f87ec4a PS |
1979 | /* Helper function for decode_line_1. |
1980 | Build a canonical line spec in CANONICAL if it is non-NULL and if | |
1981 | the SAL has a symtab. | |
1982 | If SYMNAME is non-NULL the canonical line spec is `filename:symname'. | |
1983 | If SYMNAME is NULL the line number from SAL is used and the canonical | |
1984 | line spec is `filename:linenum'. */ | |
1985 | ||
1986 | static void | |
1987 | build_canonical_line_spec (sal, symname, canonical) | |
1988 | struct symtab_and_line *sal; | |
1989 | char *symname; | |
1990 | char ***canonical; | |
1991 | { | |
1992 | char **canonical_arr; | |
1993 | char *canonical_name; | |
1994 | char *filename; | |
1995 | struct symtab *s = sal->symtab; | |
1996 | ||
1997 | if (s == (struct symtab *)NULL | |
1998 | || s->filename == (char *)NULL | |
1999 | || canonical == (char ***)NULL) | |
2000 | return; | |
2001 | ||
2002 | canonical_arr = (char **) xmalloc (sizeof (char *)); | |
2003 | *canonical = canonical_arr; | |
2004 | ||
2005 | filename = s->filename; | |
2006 | if (symname != NULL) | |
2007 | { | |
2008 | canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2); | |
2009 | sprintf (canonical_name, "%s:%s", filename, symname); | |
2010 | } | |
2011 | else | |
2012 | { | |
2013 | canonical_name = xmalloc (strlen (filename) + 30); | |
2014 | sprintf (canonical_name, "%s:%d", filename, sal->line); | |
2015 | } | |
2016 | canonical_arr[0] = canonical_name; | |
2017 | } | |
2018 | ||
bd5635a1 RP |
2019 | /* Parse a string that specifies a line number. |
2020 | Pass the address of a char * variable; that variable will be | |
2021 | advanced over the characters actually parsed. | |
2022 | ||
2023 | The string can be: | |
2024 | ||
2025 | LINENUM -- that line number in current file. PC returned is 0. | |
2026 | FILE:LINENUM -- that line in that file. PC returned is 0. | |
2027 | FUNCTION -- line number of openbrace of that function. | |
2028 | PC returned is the start of the function. | |
2029 | VARIABLE -- line number of definition of that variable. | |
2030 | PC returned is 0. | |
2031 | FILE:FUNCTION -- likewise, but prefer functions in that file. | |
2032 | *EXPR -- line in which address EXPR appears. | |
2033 | ||
cba0d141 | 2034 | FUNCTION may be an undebuggable function found in minimal symbol table. |
bd5635a1 RP |
2035 | |
2036 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
76212295 PS |
2037 | of real code inside a function when a function is specified, and it is |
2038 | not OK to specify a variable or type to get its line number. | |
bd5635a1 RP |
2039 | |
2040 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
2041 | It defaults to current_source_symtab. | |
2042 | DEFAULT_LINE specifies the line number to use for relative | |
2043 | line numbers (that start with signs). Defaults to current_source_line. | |
6f87ec4a PS |
2044 | If CANONICAL is non-NULL, store an array of strings containing the canonical |
2045 | line specs there if necessary. Currently overloaded member functions and | |
2046 | line numbers or static functions without a filename yield a canonical | |
2047 | line spec. The array and the line spec strings are allocated on the heap, | |
2048 | it is the callers responsibility to free them. | |
bd5635a1 RP |
2049 | |
2050 | Note that it is possible to return zero for the symtab | |
2051 | if no file is validly specified. Callers must check that. | |
2052 | Also, the line number returned may be invalid. */ | |
2053 | ||
dbdf5a2a JK |
2054 | /* We allow single quotes in various places. This is a hideous |
2055 | kludge, which exists because the completer can't yet deal with the | |
2056 | lack of single quotes. FIXME: write a linespec_completer which we | |
2057 | can use as appropriate instead of make_symbol_completion_list. */ | |
2058 | ||
bd5635a1 | 2059 | struct symtabs_and_lines |
6f87ec4a | 2060 | decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical) |
bd5635a1 RP |
2061 | char **argptr; |
2062 | int funfirstline; | |
2063 | struct symtab *default_symtab; | |
2064 | int default_line; | |
6f87ec4a | 2065 | char ***canonical; |
bd5635a1 | 2066 | { |
bd5635a1 | 2067 | struct symtabs_and_lines values; |
c1878f87 SG |
2068 | #ifdef HPPA_COMPILER_BUG |
2069 | /* FIXME: The native HP 9000/700 compiler has a bug which appears | |
2070 | when optimizing this file with target i960-vxworks. I haven't | |
2071 | been able to construct a simple test case. The problem is that | |
2072 | in the second call to SKIP_PROLOGUE below, the compiler somehow | |
2073 | does not realize that the statement val = find_pc_line (...) will | |
2074 | change the values of the fields of val. It extracts the elements | |
2075 | into registers at the top of the block, and does not update the | |
2076 | registers after the call to find_pc_line. You can check this by | |
2077 | inserting a printf at the end of find_pc_line to show what values | |
2078 | it is returning for val.pc and val.end and another printf after | |
2079 | the call to see what values the function actually got (remember, | |
2080 | this is compiling with cc -O, with this patch removed). You can | |
2081 | also examine the assembly listing: search for the second call to | |
2082 | skip_prologue; the LDO statement before the next call to | |
2083 | find_pc_line loads the address of the structure which | |
2084 | find_pc_line will return; if there is a LDW just before the LDO, | |
2085 | which fetches an element of the structure, then the compiler | |
2086 | still has the bug. | |
2087 | ||
2088 | Setting val to volatile avoids the problem. We must undef | |
2089 | volatile, because the HPPA native compiler does not define | |
2090 | __STDC__, although it does understand volatile, and so volatile | |
2091 | will have been defined away in defs.h. */ | |
2092 | #undef volatile | |
2093 | volatile struct symtab_and_line val; | |
2094 | #define volatile /*nothing*/ | |
2095 | #else | |
bd5635a1 | 2096 | struct symtab_and_line val; |
c1878f87 | 2097 | #endif |
bd5635a1 | 2098 | register char *p, *p1; |
1c95d7ab | 2099 | char *q, *pp; |
bd5635a1 RP |
2100 | register struct symtab *s; |
2101 | ||
2102 | register struct symbol *sym; | |
2103 | /* The symtab that SYM was found in. */ | |
2104 | struct symtab *sym_symtab; | |
2105 | ||
2106 | register CORE_ADDR pc; | |
cba0d141 | 2107 | register struct minimal_symbol *msymbol; |
bd5635a1 | 2108 | char *copy; |
7e6deb7a | 2109 | int is_quoted, has_parens; |
f70be3e4 JG |
2110 | char *saved_arg = *argptr; |
2111 | extern char *gdb_completer_quote_characters; | |
bd5635a1 | 2112 | |
07422705 PS |
2113 | INIT_SAL (&val); /* initialize to zeroes */ |
2114 | ||
bd5635a1 RP |
2115 | /* Defaults have defaults. */ |
2116 | ||
2117 | if (default_symtab == 0) | |
2118 | { | |
2119 | default_symtab = current_source_symtab; | |
2120 | default_line = current_source_line; | |
2121 | } | |
2122 | ||
8050a57b | 2123 | /* See if arg is *PC */ |
bd5635a1 | 2124 | |
8050a57b | 2125 | if (**argptr == '*') |
f70be3e4 | 2126 | { |
76212295 | 2127 | (*argptr)++; |
bd5635a1 | 2128 | pc = parse_and_eval_address_1 (argptr); |
7f6cb62e | 2129 | |
bd5635a1 RP |
2130 | values.sals = (struct symtab_and_line *) |
2131 | xmalloc (sizeof (struct symtab_and_line)); | |
7f6cb62e | 2132 | |
bd5635a1 RP |
2133 | values.nelts = 1; |
2134 | values.sals[0] = find_pc_line (pc, 0); | |
7f6cb62e KS |
2135 | values.sals[0].pc = pc; |
2136 | values.sals[0].section = find_pc_overlay (pc); | |
2137 | ||
bd5635a1 RP |
2138 | return values; |
2139 | } | |
2140 | ||
2141 | /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */ | |
2142 | ||
8050a57b | 2143 | s = NULL; |
9b041f69 PS |
2144 | is_quoted = (**argptr |
2145 | && strchr (gdb_completer_quote_characters, **argptr) != NULL); | |
2146 | has_parens = ((pp = strchr (*argptr, '(')) != NULL | |
2147 | && (pp = strchr (pp, ')')) != NULL); | |
bd5635a1 RP |
2148 | |
2149 | for (p = *argptr; *p; p++) | |
2150 | { | |
7e6deb7a KH |
2151 | if (p[0] == '<') |
2152 | { | |
76212295 | 2153 | while(++p && *p != '>'); |
7e6deb7a KH |
2154 | if (!p) |
2155 | { | |
a0cf4681 | 2156 | error ("non-matching '<' and '>' in command"); |
7e6deb7a KH |
2157 | } |
2158 | } | |
bd5635a1 RP |
2159 | if (p[0] == ':' || p[0] == ' ' || p[0] == '\t') |
2160 | break; | |
7f6cb62e | 2161 | /* start-sanitize-java */ |
d719efc6 DP |
2162 | if (p[0] == '.' && strchr (p, ':') == NULL) /* Java qualified method. */ |
2163 | { | |
2164 | /* Find the *last* '.', since the others are package qualifiers. */ | |
2165 | for (p1 = p; *p1; p1++) | |
2166 | { | |
2167 | if (*p1 == '.') | |
2168 | p = p1; | |
2169 | } | |
2170 | break; | |
2171 | } | |
7f6cb62e | 2172 | /* end-sanitize-java */ |
bd5635a1 RP |
2173 | } |
2174 | while (p[0] == ' ' || p[0] == '\t') p++; | |
2175 | ||
d719efc6 | 2176 | if ((p[0] == ':' || p[0] == '.') && !has_parens) |
bd5635a1 | 2177 | { |
7f6cb62e KS |
2178 | /* C++ */ |
2179 | /* start-sanitize-java */ | |
2180 | /* ... or Java */ | |
2181 | /* end-sanitize-java */ | |
7e6deb7a | 2182 | if (is_quoted) *argptr = *argptr+1; |
d719efc6 | 2183 | if (p[0] == '.' || p[1] ==':') |
bd5635a1 | 2184 | { |
7f6cb62e KS |
2185 | struct symbol *sym_class; |
2186 | ||
bd5635a1 RP |
2187 | /* Extract the class name. */ |
2188 | p1 = p; | |
2189 | while (p != *argptr && p[-1] == ' ') --p; | |
2190 | copy = (char *) alloca (p - *argptr + 1); | |
4ed3a9ea | 2191 | memcpy (copy, *argptr, p - *argptr); |
bd5635a1 RP |
2192 | copy[p - *argptr] = 0; |
2193 | ||
2194 | /* Discard the class name from the arg. */ | |
d719efc6 | 2195 | p = p1 + (p1[0] == ':' ? 2 : 1); |
bd5635a1 RP |
2196 | while (*p == ' ' || *p == '\t') p++; |
2197 | *argptr = p; | |
2198 | ||
2199 | sym_class = lookup_symbol (copy, 0, STRUCT_NAMESPACE, 0, | |
2200 | (struct symtab **)NULL); | |
2201 | ||
2202 | if (sym_class && | |
7f6cb62e KS |
2203 | (TYPE_CODE (SYMBOL_TYPE (sym_class)) == TYPE_CODE_STRUCT |
2204 | || TYPE_CODE (SYMBOL_TYPE (sym_class)) == TYPE_CODE_UNION)) | |
bd5635a1 | 2205 | { |
7f6cb62e KS |
2206 | struct symbol **sym_arr; |
2207 | struct type *t; | |
2208 | int i1; | |
2209 | ||
2210 | t = check_typedef (SYMBOL_TYPE (sym_class)); | |
2211 | ||
bd5635a1 | 2212 | /* Arg token is not digits => try it as a function name |
d0cde99c | 2213 | Find the next token(everything up to end or next blank). */ |
9b041f69 PS |
2214 | if (**argptr |
2215 | && strchr (gdb_completer_quote_characters, **argptr) != NULL) | |
d0cde99c PS |
2216 | { |
2217 | p = skip_quoted(*argptr); | |
2218 | *argptr = *argptr + 1; | |
2219 | } | |
2220 | else | |
2221 | { | |
2222 | p = *argptr; | |
2223 | while (*p && *p!=' ' && *p!='\t' && *p!=',' && *p!=':') p++; | |
2224 | } | |
2225 | /* | |
d96b54ea | 2226 | q = operator_chars (*argptr, &q1); |
d96b54ea JK |
2227 | if (q1 - q) |
2228 | { | |
2cd99985 PB |
2229 | char *opname; |
2230 | char *tmp = alloca (q1 - q + 1); | |
2231 | memcpy (tmp, q, q1 - q); | |
2232 | tmp[q1 - q] = '\0'; | |
8050a57b | 2233 | opname = cplus_mangle_opname (tmp, DMGL_ANSI); |
2cd99985 | 2234 | if (opname == NULL) |
f70be3e4 | 2235 | { |
a0cf4681 | 2236 | error_begin (); |
1c95d7ab | 2237 | printf_filtered ("no mangling for \"%s\"\n", tmp); |
f70be3e4 | 2238 | cplusplus_hint (saved_arg); |
f1ed4330 | 2239 | return_to_top_level (RETURN_ERROR); |
f70be3e4 | 2240 | } |
2cd99985 PB |
2241 | copy = (char*) alloca (3 + strlen(opname)); |
2242 | sprintf (copy, "__%s", opname); | |
d96b54ea JK |
2243 | p = q1; |
2244 | } | |
2245 | else | |
d0cde99c | 2246 | */ |
d96b54ea | 2247 | { |
d0cde99c | 2248 | copy = (char *) alloca (p - *argptr + 1 ); |
4ed3a9ea | 2249 | memcpy (copy, *argptr, p - *argptr); |
d96b54ea | 2250 | copy[p - *argptr] = '\0'; |
9b041f69 PS |
2251 | if (p != *argptr |
2252 | && copy[p - *argptr - 1] | |
2253 | && strchr (gdb_completer_quote_characters, | |
2254 | copy[p - *argptr - 1]) != NULL) | |
2255 | copy[p - *argptr - 1] = '\0'; | |
d96b54ea | 2256 | } |
bd5635a1 RP |
2257 | |
2258 | /* no line number may be specified */ | |
2259 | while (*p == ' ' || *p == '\t') p++; | |
2260 | *argptr = p; | |
2261 | ||
2262 | sym = 0; | |
2263 | i1 = 0; /* counter for the symbol array */ | |
2b576293 C |
2264 | sym_arr = (struct symbol **) alloca(total_number_of_methods (t) |
2265 | * sizeof(struct symbol *)); | |
bd5635a1 | 2266 | |
a46d92a7 | 2267 | if (destructor_name_p (copy, t)) |
bd5635a1 | 2268 | { |
a46d92a7 PS |
2269 | /* Destructors are a special case. */ |
2270 | int m_index, f_index; | |
2271 | ||
2272 | if (get_destructor_fn_field (t, &m_index, &f_index)) | |
ca6a826d | 2273 | { |
a46d92a7 PS |
2274 | struct fn_field *f = TYPE_FN_FIELDLIST1 (t, m_index); |
2275 | ||
2276 | sym_arr[i1] = | |
2277 | lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, f_index), | |
2278 | NULL, VAR_NAMESPACE, (int *) NULL, | |
2279 | (struct symtab **)NULL); | |
2280 | if (sym_arr[i1]) | |
2281 | i1++; | |
ca6a826d | 2282 | } |
bd5635a1 RP |
2283 | } |
2284 | else | |
2e4964ad | 2285 | i1 = find_methods (t, copy, sym_arr); |
bd5635a1 RP |
2286 | if (i1 == 1) |
2287 | { | |
2288 | /* There is exactly one field with that name. */ | |
2289 | sym = sym_arr[0]; | |
2290 | ||
2291 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
2292 | { | |
211b564e PS |
2293 | values.sals = (struct symtab_and_line *) |
2294 | xmalloc (sizeof (struct symtab_and_line)); | |
bd5635a1 | 2295 | values.nelts = 1; |
76212295 PS |
2296 | values.sals[0] = find_function_start_sal (sym, |
2297 | funfirstline); | |
bd5635a1 RP |
2298 | } |
2299 | else | |
2300 | { | |
2301 | values.nelts = 0; | |
2302 | } | |
2303 | return values; | |
2304 | } | |
2305 | if (i1 > 0) | |
2306 | { | |
2307 | /* There is more than one field with that name | |
2308 | (overloaded). Ask the user which one to use. */ | |
6f87ec4a | 2309 | return decode_line_2 (sym_arr, i1, funfirstline, canonical); |
bd5635a1 RP |
2310 | } |
2311 | else | |
d96b54ea JK |
2312 | { |
2313 | char *tmp; | |
2314 | ||
2315 | if (OPNAME_PREFIX_P (copy)) | |
2316 | { | |
2317 | tmp = (char *)alloca (strlen (copy+3) + 9); | |
2318 | strcpy (tmp, "operator "); | |
2319 | strcat (tmp, copy+3); | |
2320 | } | |
2321 | else | |
2322 | tmp = copy; | |
a0cf4681 | 2323 | error_begin (); |
0e2a896c | 2324 | if (tmp[0] == '~') |
1c95d7ab | 2325 | printf_filtered |
a0cf4681 JK |
2326 | ("the class `%s' does not have destructor defined\n", |
2327 | SYMBOL_SOURCE_NAME(sym_class)); | |
0e2a896c | 2328 | else |
1c95d7ab | 2329 | printf_filtered |
a0cf4681 JK |
2330 | ("the class %s does not have any method named %s\n", |
2331 | SYMBOL_SOURCE_NAME(sym_class), tmp); | |
f70be3e4 | 2332 | cplusplus_hint (saved_arg); |
f1ed4330 | 2333 | return_to_top_level (RETURN_ERROR); |
d96b54ea | 2334 | } |
bd5635a1 RP |
2335 | } |
2336 | else | |
f70be3e4 | 2337 | { |
a0cf4681 | 2338 | error_begin (); |
f70be3e4 | 2339 | /* The quotes are important if copy is empty. */ |
1c95d7ab | 2340 | printf_filtered |
a0cf4681 | 2341 | ("can't find class, struct, or union named \"%s\"\n", copy); |
f70be3e4 | 2342 | cplusplus_hint (saved_arg); |
f1ed4330 | 2343 | return_to_top_level (RETURN_ERROR); |
f70be3e4 | 2344 | } |
bd5635a1 RP |
2345 | } |
2346 | /* end of C++ */ | |
2347 | ||
2348 | ||
2349 | /* Extract the file name. */ | |
2350 | p1 = p; | |
2351 | while (p != *argptr && p[-1] == ' ') --p; | |
58050209 | 2352 | copy = (char *) alloca (p - *argptr + 1); |
4ed3a9ea | 2353 | memcpy (copy, *argptr, p - *argptr); |
58050209 | 2354 | copy[p - *argptr] = 0; |
bd5635a1 RP |
2355 | |
2356 | /* Find that file's data. */ | |
2357 | s = lookup_symtab (copy); | |
2358 | if (s == 0) | |
2359 | { | |
cba0d141 | 2360 | if (!have_full_symbols () && !have_partial_symbols ()) |
bd5635a1 RP |
2361 | error (no_symtab_msg); |
2362 | error ("No source file named %s.", copy); | |
2363 | } | |
2364 | ||
2365 | /* Discard the file name from the arg. */ | |
2366 | p = p1 + 1; | |
2367 | while (*p == ' ' || *p == '\t') p++; | |
2368 | *argptr = p; | |
2369 | } | |
2370 | ||
2371 | /* S is specified file's symtab, or 0 if no file specified. | |
2372 | arg no longer contains the file name. */ | |
2373 | ||
2374 | /* Check whether arg is all digits (and sign) */ | |
2375 | ||
d0cde99c PS |
2376 | q = *argptr; |
2377 | if (*q == '-' || *q == '+') q++; | |
2378 | while (*q >= '0' && *q <= '9') | |
2379 | q++; | |
bd5635a1 | 2380 | |
d0cde99c | 2381 | if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ',')) |
bd5635a1 RP |
2382 | { |
2383 | /* We found a token consisting of all digits -- at least one digit. */ | |
2384 | enum sign {none, plus, minus} sign = none; | |
2385 | ||
6f87ec4a PS |
2386 | /* We might need a canonical line spec if no file was specified. */ |
2387 | int need_canonical = (s == 0) ? 1 : 0; | |
2388 | ||
bd5635a1 RP |
2389 | /* This is where we need to make sure that we have good defaults. |
2390 | We must guarantee that this section of code is never executed | |
2391 | when we are called with just a function name, since | |
2392 | select_source_symtab calls us with such an argument */ | |
2393 | ||
2394 | if (s == 0 && default_symtab == 0) | |
2395 | { | |
bd5635a1 RP |
2396 | select_source_symtab (0); |
2397 | default_symtab = current_source_symtab; | |
2398 | default_line = current_source_line; | |
2399 | } | |
2400 | ||
2401 | if (**argptr == '+') | |
2402 | sign = plus, (*argptr)++; | |
2403 | else if (**argptr == '-') | |
2404 | sign = minus, (*argptr)++; | |
2405 | val.line = atoi (*argptr); | |
2406 | switch (sign) | |
2407 | { | |
2408 | case plus: | |
d0cde99c | 2409 | if (q == *argptr) |
bd5635a1 RP |
2410 | val.line = 5; |
2411 | if (s == 0) | |
2412 | val.line = default_line + val.line; | |
2413 | break; | |
2414 | case minus: | |
d0cde99c | 2415 | if (q == *argptr) |
bd5635a1 RP |
2416 | val.line = 15; |
2417 | if (s == 0) | |
2418 | val.line = default_line - val.line; | |
2419 | else | |
2420 | val.line = 1; | |
2421 | break; | |
2422 | case none: | |
2423 | break; /* No need to adjust val.line. */ | |
2424 | } | |
2425 | ||
d0cde99c PS |
2426 | while (*q == ' ' || *q == '\t') q++; |
2427 | *argptr = q; | |
bd5635a1 RP |
2428 | if (s == 0) |
2429 | s = default_symtab; | |
2430 | val.symtab = s; | |
2431 | val.pc = 0; | |
211b564e PS |
2432 | values.sals = (struct symtab_and_line *) |
2433 | xmalloc (sizeof (struct symtab_and_line)); | |
bd5635a1 RP |
2434 | values.sals[0] = val; |
2435 | values.nelts = 1; | |
6f87ec4a PS |
2436 | if (need_canonical) |
2437 | build_canonical_line_spec (values.sals, NULL, canonical); | |
bd5635a1 RP |
2438 | return values; |
2439 | } | |
2440 | ||
2441 | /* Arg token is not digits => try it as a variable name | |
2442 | Find the next token (everything up to end or next whitespace). */ | |
2cd99985 | 2443 | |
2b576293 C |
2444 | if (**argptr == '$') /* Convenience variable */ |
2445 | p = skip_quoted (*argptr + 1); | |
2446 | else if (is_quoted) | |
7e6deb7a KH |
2447 | { |
2448 | p = skip_quoted (*argptr); | |
2449 | if (p[-1] != '\'') | |
2450 | error ("Unmatched single quote."); | |
2451 | } | |
2452 | else if (has_parens) | |
2453 | { | |
2454 | p = pp+1; | |
2455 | } | |
d0cde99c PS |
2456 | else |
2457 | { | |
2458 | p = skip_quoted(*argptr); | |
2459 | } | |
2460 | ||
bd5635a1 | 2461 | copy = (char *) alloca (p - *argptr + 1); |
4ed3a9ea | 2462 | memcpy (copy, *argptr, p - *argptr); |
f70be3e4 | 2463 | copy[p - *argptr] = '\0'; |
e3d6ec4a | 2464 | if (p != *argptr |
9b041f69 PS |
2465 | && copy[0] |
2466 | && copy[0] == copy [p - *argptr - 1] | |
f70be3e4 JG |
2467 | && strchr (gdb_completer_quote_characters, copy[0]) != NULL) |
2468 | { | |
f70be3e4 JG |
2469 | copy [p - *argptr - 1] = '\0'; |
2470 | copy++; | |
f70be3e4 | 2471 | } |
bd5635a1 RP |
2472 | while (*p == ' ' || *p == '\t') p++; |
2473 | *argptr = p; | |
2474 | ||
2b576293 C |
2475 | /* See if it's a convenience variable */ |
2476 | ||
2477 | if (*copy == '$') | |
2478 | { | |
2479 | value_ptr valx; | |
2480 | int need_canonical = (s == 0) ? 1 : 0; | |
2481 | ||
2482 | valx = value_of_internalvar (lookup_internalvar (copy + 1)); | |
2483 | if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT) | |
2484 | error ("Convenience variables used in line specs must have integer values."); | |
2485 | ||
2486 | val.symtab = s ? s : default_symtab; | |
2487 | val.line = value_as_long (valx); | |
2488 | val.pc = 0; | |
2489 | ||
2490 | values.sals = (struct symtab_and_line *)xmalloc (sizeof val); | |
2491 | values.sals[0] = val; | |
2492 | values.nelts = 1; | |
2493 | ||
2494 | if (need_canonical) | |
2495 | build_canonical_line_spec (values.sals, NULL, canonical); | |
2496 | ||
2497 | return values; | |
2498 | } | |
2499 | ||
2500 | ||
bd5635a1 RP |
2501 | /* Look up that token as a variable. |
2502 | If file specified, use that file's per-file block to start with. */ | |
2503 | ||
2504 | sym = lookup_symbol (copy, | |
3ba6a043 | 2505 | (s ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK) |
bd5635a1 RP |
2506 | : get_selected_block ()), |
2507 | VAR_NAMESPACE, 0, &sym_symtab); | |
2508 | ||
2509 | if (sym != NULL) | |
2510 | { | |
2511 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) | |
2512 | { | |
2513 | /* Arg is the name of a function */ | |
211b564e PS |
2514 | values.sals = (struct symtab_and_line *) |
2515 | xmalloc (sizeof (struct symtab_and_line)); | |
76212295 | 2516 | values.sals[0] = find_function_start_sal (sym, funfirstline); |
bd5635a1 | 2517 | values.nelts = 1; |
ad0a2521 JK |
2518 | |
2519 | /* Don't use the SYMBOL_LINE; if used at all it points to | |
2520 | the line containing the parameters or thereabouts, not | |
2521 | the first line of code. */ | |
2522 | ||
2523 | /* We might need a canonical line spec if it is a static | |
2524 | function. */ | |
6f87ec4a PS |
2525 | if (s == 0) |
2526 | { | |
2527 | struct blockvector *bv = BLOCKVECTOR (sym_symtab); | |
2528 | struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
2529 | if (lookup_block_symbol (b, copy, VAR_NAMESPACE) != NULL) | |
2530 | build_canonical_line_spec (values.sals, copy, canonical); | |
2531 | } | |
bd5635a1 RP |
2532 | return values; |
2533 | } | |
76212295 | 2534 | else |
bd5635a1 | 2535 | { |
76212295 PS |
2536 | if (funfirstline) |
2537 | error ("\"%s\" is not a function", copy); | |
2538 | else if (SYMBOL_LINE (sym) != 0) | |
2539 | { | |
2540 | /* We know its line number. */ | |
2541 | values.sals = (struct symtab_and_line *) | |
2542 | xmalloc (sizeof (struct symtab_and_line)); | |
2543 | values.nelts = 1; | |
2544 | memset (&values.sals[0], 0, sizeof (values.sals[0])); | |
2545 | values.sals[0].symtab = sym_symtab; | |
2546 | values.sals[0].line = SYMBOL_LINE (sym); | |
2547 | return values; | |
2548 | } | |
2549 | else | |
2550 | /* This can happen if it is compiled with a compiler which doesn't | |
2551 | put out line numbers for variables. */ | |
2552 | /* FIXME: Shouldn't we just set .line and .symtab to zero | |
2553 | and return? For example, "info line foo" could print | |
2554 | the address. */ | |
2555 | error ("Line number not known for symbol \"%s\"", copy); | |
bd5635a1 | 2556 | } |
bd5635a1 RP |
2557 | } |
2558 | ||
2b576293 | 2559 | msymbol = lookup_minimal_symbol (copy, NULL, NULL); |
cba0d141 | 2560 | if (msymbol != NULL) |
bd5635a1 | 2561 | { |
211b564e PS |
2562 | val.pc = SYMBOL_VALUE_ADDRESS (msymbol); |
2563 | val.section = SYMBOL_BFD_SECTION (msymbol); | |
bd5635a1 | 2564 | if (funfirstline) |
2cacd1e3 PS |
2565 | { |
2566 | val.pc += FUNCTION_START_OFFSET; | |
2567 | SKIP_PROLOGUE (val.pc); | |
2568 | } | |
07422705 PS |
2569 | values.sals = (struct symtab_and_line *) |
2570 | xmalloc (sizeof (struct symtab_and_line)); | |
bd5635a1 RP |
2571 | values.sals[0] = val; |
2572 | values.nelts = 1; | |
2573 | return values; | |
2574 | } | |
2575 | ||
cba0d141 JG |
2576 | if (!have_full_symbols () && |
2577 | !have_partial_symbols () && !have_minimal_symbols ()) | |
997a978c JG |
2578 | error (no_symtab_msg); |
2579 | ||
f70be3e4 | 2580 | error ("Function \"%s\" not defined.", copy); |
bd5635a1 RP |
2581 | return values; /* for lint */ |
2582 | } | |
2583 | ||
2584 | struct symtabs_and_lines | |
2585 | decode_line_spec (string, funfirstline) | |
2586 | char *string; | |
2587 | int funfirstline; | |
2588 | { | |
2589 | struct symtabs_and_lines sals; | |
2590 | if (string == 0) | |
2591 | error ("Empty line specification."); | |
2592 | sals = decode_line_1 (&string, funfirstline, | |
6f87ec4a PS |
2593 | current_source_symtab, current_source_line, |
2594 | (char ***)NULL); | |
bd5635a1 RP |
2595 | if (*string) |
2596 | error ("Junk at end of line specification: %s", string); | |
2597 | return sals; | |
2598 | } | |
2599 | ||
6f87ec4a PS |
2600 | /* Given a list of NELTS symbols in SYM_ARR, return a list of lines to |
2601 | operate on (ask user if necessary). | |
2602 | If CANONICAL is non-NULL return a corresponding array of mangled names | |
2603 | as canonical line specs there. */ | |
2e4964ad | 2604 | |
cba0d141 | 2605 | static struct symtabs_and_lines |
6f87ec4a | 2606 | decode_line_2 (sym_arr, nelts, funfirstline, canonical) |
bd5635a1 RP |
2607 | struct symbol *sym_arr[]; |
2608 | int nelts; | |
2609 | int funfirstline; | |
6f87ec4a | 2610 | char ***canonical; |
bd5635a1 | 2611 | { |
bd5635a1 | 2612 | struct symtabs_and_lines values, return_values; |
cba0d141 | 2613 | char *args, *arg1; |
bd5635a1 RP |
2614 | int i; |
2615 | char *prompt; | |
2e4964ad | 2616 | char *symname; |
6f87ec4a PS |
2617 | struct cleanup *old_chain; |
2618 | char **canonical_arr = (char **)NULL; | |
bd5635a1 | 2619 | |
211b564e PS |
2620 | values.sals = (struct symtab_and_line *) |
2621 | alloca (nelts * sizeof(struct symtab_and_line)); | |
2622 | return_values.sals = (struct symtab_and_line *) | |
2623 | xmalloc (nelts * sizeof(struct symtab_and_line)); | |
6f87ec4a PS |
2624 | old_chain = make_cleanup (free, return_values.sals); |
2625 | ||
2626 | if (canonical) | |
2627 | { | |
2628 | canonical_arr = (char **) xmalloc (nelts * sizeof (char *)); | |
2629 | make_cleanup (free, canonical_arr); | |
2630 | memset (canonical_arr, 0, nelts * sizeof (char *)); | |
2631 | *canonical = canonical_arr; | |
2632 | } | |
bd5635a1 RP |
2633 | |
2634 | i = 0; | |
199b2450 | 2635 | printf_unfiltered("[0] cancel\n[1] all\n"); |
bd5635a1 RP |
2636 | while (i < nelts) |
2637 | { | |
07422705 PS |
2638 | INIT_SAL (&return_values.sals[i]); /* initialize to zeroes */ |
2639 | INIT_SAL (&values.sals[i]); | |
bd5635a1 RP |
2640 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) |
2641 | { | |
76212295 PS |
2642 | values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline); |
2643 | printf_unfiltered ("[%d] %s at %s:%d\n", | |
2644 | (i+2), | |
2645 | SYMBOL_SOURCE_NAME (sym_arr[i]), | |
2646 | values.sals[i].symtab->filename, | |
2647 | values.sals[i].line); | |
bd5635a1 | 2648 | } |
76212295 PS |
2649 | else |
2650 | printf_unfiltered ("?HERE\n"); | |
bd5635a1 RP |
2651 | i++; |
2652 | } | |
2653 | ||
2654 | if ((prompt = getenv ("PS2")) == NULL) | |
2655 | { | |
2656 | prompt = ">"; | |
2657 | } | |
199b2450 TL |
2658 | printf_unfiltered("%s ",prompt); |
2659 | gdb_flush(gdb_stdout); | |
bd5635a1 | 2660 | |
a0cf4681 | 2661 | args = command_line_input ((char *) NULL, 0, "overload-choice"); |
bd5635a1 | 2662 | |
6f87ec4a | 2663 | if (args == 0 || *args == 0) |
bd5635a1 RP |
2664 | error_no_arg ("one or more choice numbers"); |
2665 | ||
2666 | i = 0; | |
2667 | while (*args) | |
2668 | { | |
2669 | int num; | |
2670 | ||
2671 | arg1 = args; | |
2672 | while (*arg1 >= '0' && *arg1 <= '9') arg1++; | |
2673 | if (*arg1 && *arg1 != ' ' && *arg1 != '\t') | |
2674 | error ("Arguments must be choice numbers."); | |
2675 | ||
2676 | num = atoi (args); | |
2677 | ||
2678 | if (num == 0) | |
2679 | error ("cancelled"); | |
2680 | else if (num == 1) | |
2681 | { | |
6f87ec4a PS |
2682 | if (canonical_arr) |
2683 | { | |
2684 | for (i = 0; i < nelts; i++) | |
2685 | { | |
2686 | if (canonical_arr[i] == NULL) | |
2687 | { | |
2688 | symname = SYMBOL_NAME (sym_arr[i]); | |
2689 | canonical_arr[i] = savestring (symname, strlen (symname)); | |
2690 | } | |
2691 | } | |
2692 | } | |
4ed3a9ea FF |
2693 | memcpy (return_values.sals, values.sals, |
2694 | (nelts * sizeof(struct symtab_and_line))); | |
bd5635a1 | 2695 | return_values.nelts = nelts; |
6f87ec4a | 2696 | discard_cleanups (old_chain); |
bd5635a1 RP |
2697 | return return_values; |
2698 | } | |
2699 | ||
07422705 | 2700 | if (num >= nelts + 2) |
bd5635a1 | 2701 | { |
199b2450 | 2702 | printf_unfiltered ("No choice number %d.\n", num); |
bd5635a1 RP |
2703 | } |
2704 | else | |
2705 | { | |
2706 | num -= 2; | |
2707 | if (values.sals[num].pc) | |
2708 | { | |
6f87ec4a PS |
2709 | if (canonical_arr) |
2710 | { | |
2711 | symname = SYMBOL_NAME (sym_arr[num]); | |
2712 | make_cleanup (free, symname); | |
2713 | canonical_arr[i] = savestring (symname, strlen (symname)); | |
2714 | } | |
bd5635a1 RP |
2715 | return_values.sals[i++] = values.sals[num]; |
2716 | values.sals[num].pc = 0; | |
2717 | } | |
2718 | else | |
2719 | { | |
199b2450 | 2720 | printf_unfiltered ("duplicate request for %d ignored.\n", num); |
bd5635a1 RP |
2721 | } |
2722 | } | |
2723 | ||
2724 | args = arg1; | |
2725 | while (*args == ' ' || *args == '\t') args++; | |
2726 | } | |
2727 | return_values.nelts = i; | |
6f87ec4a | 2728 | discard_cleanups (old_chain); |
bd5635a1 RP |
2729 | return return_values; |
2730 | } | |
2731 | ||
bd5635a1 RP |
2732 | \f |
2733 | /* Slave routine for sources_info. Force line breaks at ,'s. | |
2734 | NAME is the name to print and *FIRST is nonzero if this is the first | |
2735 | name printed. Set *FIRST to zero. */ | |
2736 | static void | |
2737 | output_source_filename (name, first) | |
2738 | char *name; | |
2739 | int *first; | |
2740 | { | |
bd5635a1 RP |
2741 | /* Table of files printed so far. Since a single source file can |
2742 | result in several partial symbol tables, we need to avoid printing | |
2743 | it more than once. Note: if some of the psymtabs are read in and | |
2744 | some are not, it gets printed both under "Source files for which | |
2745 | symbols have been read" and "Source files for which symbols will | |
2746 | be read in on demand". I consider this a reasonable way to deal | |
2747 | with the situation. I'm not sure whether this can also happen for | |
2748 | symtabs; it doesn't hurt to check. */ | |
2749 | static char **tab = NULL; | |
2750 | /* Allocated size of tab in elements. | |
2751 | Start with one 256-byte block (when using GNU malloc.c). | |
2752 | 24 is the malloc overhead when range checking is in effect. */ | |
2753 | static int tab_alloc_size = (256 - 24) / sizeof (char *); | |
2754 | /* Current size of tab in elements. */ | |
2755 | static int tab_cur_size; | |
2756 | ||
2757 | char **p; | |
2758 | ||
2759 | if (*first) | |
2760 | { | |
2761 | if (tab == NULL) | |
2762 | tab = (char **) xmalloc (tab_alloc_size * sizeof (*tab)); | |
2763 | tab_cur_size = 0; | |
2764 | } | |
2765 | ||
2766 | /* Is NAME in tab? */ | |
2767 | for (p = tab; p < tab + tab_cur_size; p++) | |
2e4964ad | 2768 | if (STREQ (*p, name)) |
bd5635a1 RP |
2769 | /* Yes; don't print it again. */ |
2770 | return; | |
2771 | /* No; add it to tab. */ | |
2772 | if (tab_cur_size == tab_alloc_size) | |
2773 | { | |
2774 | tab_alloc_size *= 2; | |
cba0d141 | 2775 | tab = (char **) xrealloc ((char *) tab, tab_alloc_size * sizeof (*tab)); |
bd5635a1 RP |
2776 | } |
2777 | tab[tab_cur_size++] = name; | |
2778 | ||
2779 | if (*first) | |
2780 | { | |
bd5635a1 RP |
2781 | *first = 0; |
2782 | } | |
2783 | else | |
2784 | { | |
f70be3e4 | 2785 | printf_filtered (", "); |
bd5635a1 RP |
2786 | } |
2787 | ||
f70be3e4 | 2788 | wrap_here (""); |
199b2450 | 2789 | fputs_filtered (name, gdb_stdout); |
bd5635a1 RP |
2790 | } |
2791 | ||
2792 | static void | |
35a25840 SG |
2793 | sources_info (ignore, from_tty) |
2794 | char *ignore; | |
2795 | int from_tty; | |
bd5635a1 RP |
2796 | { |
2797 | register struct symtab *s; | |
2798 | register struct partial_symtab *ps; | |
cba0d141 | 2799 | register struct objfile *objfile; |
bd5635a1 RP |
2800 | int first; |
2801 | ||
cba0d141 | 2802 | if (!have_full_symbols () && !have_partial_symbols ()) |
bd5635a1 | 2803 | { |
3053b9f2 | 2804 | error (no_symtab_msg); |
bd5635a1 RP |
2805 | } |
2806 | ||
2807 | printf_filtered ("Source files for which symbols have been read in:\n\n"); | |
2808 | ||
2809 | first = 1; | |
35a25840 | 2810 | ALL_SYMTABS (objfile, s) |
cba0d141 | 2811 | { |
35a25840 | 2812 | output_source_filename (s -> filename, &first); |
cba0d141 | 2813 | } |
bd5635a1 RP |
2814 | printf_filtered ("\n\n"); |
2815 | ||
2816 | printf_filtered ("Source files for which symbols will be read in on demand:\n\n"); | |
2817 | ||
2818 | first = 1; | |
35a25840 | 2819 | ALL_PSYMTABS (objfile, ps) |
cba0d141 | 2820 | { |
35a25840 | 2821 | if (!ps->readin) |
cba0d141 | 2822 | { |
35a25840 | 2823 | output_source_filename (ps -> filename, &first); |
cba0d141 JG |
2824 | } |
2825 | } | |
bd5635a1 RP |
2826 | printf_filtered ("\n"); |
2827 | } | |
2828 | ||
7f6cb62e KS |
2829 | static int |
2830 | file_matches (file, files, nfiles) | |
2831 | char *file; | |
2832 | char *files[]; | |
2833 | int nfiles; | |
2834 | { | |
2835 | int i; | |
2836 | ||
2837 | if (file != NULL && nfiles != 0) | |
2838 | { | |
2839 | for (i = 0; i < nfiles; i++) | |
2840 | { | |
2841 | if (strcmp (files[i], basename (file)) == 0) | |
2842 | return 1; | |
2843 | } | |
2844 | } | |
2845 | else if (nfiles == 0) | |
2846 | return 1; | |
2847 | return 0; | |
2848 | } | |
2849 | ||
2850 | /* Free any memory associated with a search. */ | |
2851 | void | |
2852 | free_search_symbols (symbols) | |
2853 | struct symbol_search *symbols; | |
2854 | { | |
2855 | struct symbol_search *p; | |
2856 | struct symbol_search *next; | |
2857 | ||
2858 | for (p = symbols; p != NULL; p = next) | |
2859 | { | |
2860 | next = p->next; | |
2861 | free (p); | |
2862 | } | |
2863 | } | |
2864 | ||
2865 | /* Search the symbol table for matches to the regular expression REGEXP, | |
2866 | returning the results in *MATCHES. | |
bd5635a1 | 2867 | |
7f6cb62e KS |
2868 | Only symbols of KIND are searched: |
2869 | FUNCTIONS_NAMESPACE - search all functions | |
2870 | TYPES_NAMESPACE - search all type names | |
2871 | METHODS_NAMESPACE - search all methods NOT IMPLEMENTED | |
2872 | VARIABLES_NAMESPACE - search all symbols, excluding functions, type names, | |
2873 | and constants (enums) | |
bd5635a1 | 2874 | |
7f6cb62e KS |
2875 | free_search_symbols should be called when *MATCHES is no longer needed. |
2876 | */ | |
2877 | void | |
2878 | search_symbols (regexp, kind, nfiles, files, matches) | |
bd5635a1 | 2879 | char *regexp; |
7f6cb62e KS |
2880 | namespace_enum kind; |
2881 | int nfiles; | |
2882 | char *files[]; | |
2883 | struct symbol_search **matches; | |
2884 | ||
bd5635a1 RP |
2885 | { |
2886 | register struct symtab *s; | |
2887 | register struct partial_symtab *ps; | |
2888 | register struct blockvector *bv; | |
2889 | struct blockvector *prev_bv = 0; | |
2890 | register struct block *b; | |
2891 | register int i, j; | |
2892 | register struct symbol *sym; | |
b607efe7 | 2893 | struct partial_symbol **psym; |
cba0d141 JG |
2894 | struct objfile *objfile; |
2895 | struct minimal_symbol *msymbol; | |
35a25840 | 2896 | char *val; |
997a978c | 2897 | int found_misc = 0; |
cba0d141 JG |
2898 | static enum minimal_symbol_type types[] |
2899 | = {mst_data, mst_text, mst_abs, mst_unknown}; | |
2900 | static enum minimal_symbol_type types2[] | |
ae6d035d PS |
2901 | = {mst_bss, mst_file_text, mst_abs, mst_unknown}; |
2902 | static enum minimal_symbol_type types3[] | |
2903 | = {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown}; | |
2904 | static enum minimal_symbol_type types4[] | |
2905 | = {mst_file_bss, mst_text, mst_abs, mst_unknown}; | |
7f6cb62e KS |
2906 | enum minimal_symbol_type ourtype; |
2907 | enum minimal_symbol_type ourtype2; | |
2908 | enum minimal_symbol_type ourtype3; | |
2909 | enum minimal_symbol_type ourtype4; | |
2910 | struct symbol_search *sr; | |
2911 | struct symbol_search *psr; | |
2912 | struct symbol_search *tail; | |
2913 | struct cleanup *old_chain = NULL; | |
2914 | ||
2915 | if (kind < LABEL_NAMESPACE) | |
2916 | error ("must search on specific namespace"); | |
2917 | ||
2918 | ourtype = types[(int) (kind - LABEL_NAMESPACE)]; | |
2919 | ourtype2 = types2[(int) (kind - LABEL_NAMESPACE)]; | |
2920 | ourtype3 = types3[(int) (kind - LABEL_NAMESPACE)]; | |
2921 | ourtype4 = types4[(int) (kind - LABEL_NAMESPACE)]; | |
2922 | ||
2923 | sr = *matches = NULL; | |
2924 | tail = NULL; | |
bd5635a1 | 2925 | |
2e4964ad | 2926 | if (regexp != NULL) |
2cd99985 PB |
2927 | { |
2928 | /* Make sure spacing is right for C++ operators. | |
7f6cb62e KS |
2929 | This is just a courtesy to make the matching less sensitive |
2930 | to how many spaces the user leaves between 'operator' | |
2931 | and <TYPENAME> or <OPERATOR>. */ | |
2cd99985 PB |
2932 | char *opend; |
2933 | char *opname = operator_chars (regexp, &opend); | |
2934 | if (*opname) | |
7f6cb62e | 2935 | { |
2cd99985 | 2936 | int fix = -1; /* -1 means ok; otherwise number of spaces needed. */ |
7f6cb62e KS |
2937 | if (isalpha(*opname) || *opname == '_' || *opname == '$') |
2938 | { | |
2939 | /* There should 1 space between 'operator' and 'TYPENAME'. */ | |
2940 | if (opname[-1] != ' ' || opname[-2] == ' ') | |
2941 | fix = 1; | |
2942 | } | |
2943 | else | |
2944 | { | |
2945 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ | |
2946 | if (opname[-1] == ' ') | |
2947 | fix = 0; | |
2948 | } | |
2949 | /* If wrong number of spaces, fix it. */ | |
2950 | if (fix >= 0) | |
2951 | { | |
2952 | char *tmp = (char*) alloca(opend-opname+10); | |
2953 | sprintf(tmp, "operator%.*s%s", fix, " ", opname); | |
2954 | regexp = tmp; | |
2955 | } | |
2cd99985 PB |
2956 | } |
2957 | ||
2958 | if (0 != (val = re_comp (regexp))) | |
7f6cb62e | 2959 | error ("Invalid regexp (%s): %s", val, regexp); |
2cd99985 | 2960 | } |
bd5635a1 | 2961 | |
cba0d141 | 2962 | /* Search through the partial symtabs *first* for all symbols |
bd5635a1 RP |
2963 | matching the regexp. That way we don't have to reproduce all of |
2964 | the machinery below. */ | |
bd5635a1 | 2965 | |
35a25840 | 2966 | ALL_PSYMTABS (objfile, ps) |
cba0d141 | 2967 | { |
b607efe7 | 2968 | struct partial_symbol **bound, **gbound, **sbound; |
35a25840 | 2969 | int keep_going = 1; |
7f6cb62e | 2970 | |
35a25840 | 2971 | if (ps->readin) continue; |
7f6cb62e | 2972 | |
35a25840 SG |
2973 | gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms; |
2974 | sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms; | |
2975 | bound = gbound; | |
2976 | ||
2977 | /* Go through all of the symbols stored in a partial | |
7f6cb62e | 2978 | symtab in one loop. */ |
35a25840 SG |
2979 | psym = objfile->global_psymbols.list + ps->globals_offset; |
2980 | while (keep_going) | |
7f6cb62e KS |
2981 | { |
2982 | if (psym >= bound) | |
2983 | { | |
2984 | if (bound == gbound && ps->n_static_syms != 0) | |
2985 | { | |
2986 | psym = objfile->static_psymbols.list + ps->statics_offset; | |
2987 | bound = sbound; | |
2988 | } | |
2989 | else | |
2990 | keep_going = 0; | |
2991 | continue; | |
2992 | } | |
2993 | else | |
2994 | { | |
2995 | QUIT; | |
2996 | ||
2997 | /* If it would match (logic taken from loop below) | |
2998 | load the file and go on to the next one */ | |
2999 | if (file_matches (ps->filename, files, nfiles) | |
3000 | && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (*psym)) | |
3001 | && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (*psym) != LOC_TYPEDEF | |
3002 | && SYMBOL_CLASS (*psym) != LOC_BLOCK) | |
3003 | || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK) | |
3004 | || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_TYPEDEF) | |
3005 | || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK)))) | |
3006 | { | |
3007 | PSYMTAB_TO_SYMTAB(ps); | |
3008 | keep_going = 0; | |
3009 | } | |
3010 | } | |
3011 | psym++; | |
3012 | } | |
bd5635a1 RP |
3013 | } |
3014 | ||
76212295 PS |
3015 | /* Here, we search through the minimal symbol tables for functions |
3016 | and variables that match, and force their symbols to be read. | |
3017 | This is in particular necessary for demangled variable names, | |
3018 | which are no longer put into the partial symbol tables. | |
3019 | The symbol will then be found during the scan of symtabs below. | |
3020 | ||
3021 | For functions, find_pc_symtab should succeed if we have debug info | |
3022 | for the function, for variables we have to call lookup_symbol | |
3023 | to determine if the variable has debug info. | |
3024 | If the lookup fails, set found_misc so that we will rescan to print | |
3025 | any matching symbols without debug info. | |
3026 | */ | |
997a978c | 3027 | |
7f6cb62e | 3028 | if (nfiles == 0 && (kind == VARIABLES_NAMESPACE || kind == FUNCTIONS_NAMESPACE)) |
cba0d141 | 3029 | { |
35a25840 | 3030 | ALL_MSYMBOLS (objfile, msymbol) |
7f6cb62e KS |
3031 | { |
3032 | if (MSYMBOL_TYPE (msymbol) == ourtype || | |
3033 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
3034 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
3035 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
3036 | { | |
3037 | if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol)) | |
3038 | { | |
3039 | if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))) | |
3040 | { | |
3041 | if (kind == FUNCTIONS_NAMESPACE | |
3042 | || lookup_symbol (SYMBOL_NAME (msymbol), | |
3043 | (struct block *) NULL, | |
3044 | VAR_NAMESPACE, | |
3045 | 0, (struct symtab **) NULL) == NULL) | |
3046 | found_misc = 1; | |
3047 | } | |
3048 | } | |
3049 | } | |
3050 | } | |
bd5635a1 RP |
3051 | } |
3052 | ||
35a25840 | 3053 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 3054 | { |
35a25840 SG |
3055 | bv = BLOCKVECTOR (s); |
3056 | /* Often many files share a blockvector. | |
7f6cb62e KS |
3057 | Scan each blockvector only once so that |
3058 | we don't get every symbol many times. | |
3059 | It happens that the first symtab in the list | |
3060 | for any given blockvector is the main file. */ | |
35a25840 | 3061 | if (bv != prev_bv) |
7f6cb62e KS |
3062 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
3063 | { | |
3064 | b = BLOCKVECTOR_BLOCK (bv, i); | |
3065 | /* Skip the sort if this block is always sorted. */ | |
3066 | if (!BLOCK_SHOULD_SORT (b)) | |
3067 | sort_block_syms (b); | |
3068 | for (j = 0; j < BLOCK_NSYMS (b); j++) | |
3069 | { | |
3070 | QUIT; | |
3071 | sym = BLOCK_SYM (b, j); | |
3072 | if (file_matches (s->filename, files, nfiles) | |
3073 | && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (sym)) | |
3074 | && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
3075 | && SYMBOL_CLASS (sym) != LOC_BLOCK | |
3076 | && SYMBOL_CLASS (sym) != LOC_CONST) | |
3077 | || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
3078 | || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
3079 | || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK)))) | |
3080 | { | |
3081 | /* match */ | |
3082 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
3083 | psr->block = i; | |
3084 | psr->symtab = s; | |
3085 | psr->symbol = sym; | |
3086 | psr->msymbol = NULL; | |
3087 | psr->next = NULL; | |
3088 | if (tail == NULL) | |
3089 | { | |
3090 | sr = psr; | |
3091 | old_chain = make_cleanup (free_search_symbols, sr); | |
3092 | } | |
3093 | else | |
3094 | tail->next = psr; | |
3095 | tail = psr; | |
3096 | } | |
3097 | } | |
3098 | } | |
35a25840 | 3099 | prev_bv = bv; |
bd5635a1 | 3100 | } |
997a978c | 3101 | |
997a978c | 3102 | /* If there are no eyes, avoid all contact. I mean, if there are |
cba0d141 JG |
3103 | no debug symbols, then print directly from the msymbol_vector. */ |
3104 | ||
7f6cb62e | 3105 | if (found_misc || kind != FUNCTIONS_NAMESPACE) |
cba0d141 | 3106 | { |
35a25840 | 3107 | ALL_MSYMBOLS (objfile, msymbol) |
7f6cb62e KS |
3108 | { |
3109 | if (MSYMBOL_TYPE (msymbol) == ourtype || | |
3110 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
3111 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
3112 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
3113 | { | |
3114 | if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol)) | |
3115 | { | |
3116 | /* Functions: Look up by address. */ | |
3117 | if (kind != FUNCTIONS_NAMESPACE || | |
3118 | (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))) | |
3119 | { | |
3120 | /* Variables/Absolutes: Look up by name */ | |
3121 | if (lookup_symbol (SYMBOL_NAME (msymbol), | |
3122 | (struct block *) NULL, VAR_NAMESPACE, | |
3123 | 0, (struct symtab **) NULL) == NULL) | |
3124 | { | |
3125 | /* match */ | |
3126 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
3127 | psr->block = i; | |
3128 | psr->msymbol = msymbol; | |
3129 | psr->symtab = NULL; | |
3130 | psr->symbol = NULL; | |
3131 | psr->next = NULL; | |
3132 | if (tail == NULL) | |
f21c9aec | 3133 | { |
7f6cb62e KS |
3134 | sr = psr; |
3135 | old_chain = make_cleanup (free_search_symbols, &sr); | |
f21c9aec | 3136 | } |
7f6cb62e KS |
3137 | else |
3138 | tail->next = psr; | |
3139 | tail = psr; | |
3140 | } | |
3141 | } | |
3142 | } | |
3143 | } | |
3144 | } | |
997a978c | 3145 | } |
7f6cb62e KS |
3146 | |
3147 | *matches = sr; | |
3148 | if (sr != NULL) | |
3149 | discard_cleanups (old_chain); | |
3150 | } | |
3151 | ||
3152 | /* Helper function for symtab_symbol_info, this function uses | |
3153 | the data returned from search_symbols() to print information | |
3154 | regarding the match to gdb_stdout. | |
3155 | */ | |
3156 | static int | |
3157 | print_symbol_info (kind, s, sym, block, last) | |
3158 | namespace_enum kind; | |
3159 | struct symtab *s; | |
3160 | struct symbol *sym; | |
3161 | int block; | |
3162 | char *last; | |
3163 | { | |
3164 | if (last == NULL || strcmp (last, s->filename) != 0) | |
3165 | { | |
3166 | fputs_filtered ("\nFile ", gdb_stdout); | |
3167 | fputs_filtered (s->filename, gdb_stdout); | |
3168 | fputs_filtered (":\n", gdb_stdout); | |
3169 | } | |
3170 | ||
3171 | if (kind != TYPES_NAMESPACE && block == STATIC_BLOCK) | |
3172 | printf_filtered ("static "); | |
3173 | ||
3174 | /* Typedef that is not a C++ class */ | |
3175 | if (kind == TYPES_NAMESPACE | |
3176 | && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE) | |
3177 | c_typedef_print (SYMBOL_TYPE(sym), sym, gdb_stdout); | |
3178 | /* variable, func, or typedef-that-is-c++-class */ | |
3179 | else if (kind < TYPES_NAMESPACE || | |
3180 | (kind == TYPES_NAMESPACE && | |
3181 | SYMBOL_NAMESPACE(sym) == STRUCT_NAMESPACE)) | |
3182 | { | |
3183 | type_print (SYMBOL_TYPE (sym), | |
3184 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF | |
3185 | ? "" : SYMBOL_SOURCE_NAME (sym)), | |
3186 | gdb_stdout, 0); | |
3187 | ||
3188 | printf_filtered (";\n"); | |
3189 | } | |
3190 | else | |
3191 | { | |
3192 | # if 0 | |
3193 | /* Tiemann says: "info methods was never implemented." */ | |
3194 | char *demangled_name; | |
3195 | c_type_print_base (TYPE_FN_FIELD_TYPE(t, block), | |
3196 | gdb_stdout, 0, 0); | |
3197 | c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE(t, block), | |
3198 | gdb_stdout, 0); | |
3199 | if (TYPE_FN_FIELD_STUB (t, block)) | |
3200 | check_stub_method (TYPE_DOMAIN_TYPE (type), j, block); | |
3201 | demangled_name = | |
3202 | cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t, block), | |
3203 | DMGL_ANSI | DMGL_PARAMS); | |
3204 | if (demangled_name == NULL) | |
3205 | fprintf_filtered (stream, "<badly mangled name %s>", | |
3206 | TYPE_FN_FIELD_PHYSNAME (t, block)); | |
3207 | else | |
3208 | { | |
3209 | fputs_filtered (demangled_name, stream); | |
3210 | free (demangled_name); | |
3211 | } | |
3212 | # endif | |
3213 | } | |
3214 | } | |
3215 | ||
3216 | /* This help function for symtab_symbol_info() prints information | |
3217 | for non-debugging symbols to gdb_stdout. | |
3218 | */ | |
3219 | static void | |
3220 | print_msymbol_info (msymbol) | |
3221 | struct minimal_symbol *msymbol; | |
3222 | { | |
3223 | printf_filtered (" %08lx %s\n", | |
3224 | (unsigned long) SYMBOL_VALUE_ADDRESS (msymbol), | |
3225 | SYMBOL_SOURCE_NAME (msymbol)); | |
3226 | } | |
3227 | ||
3228 | /* This is the guts of the commands "info functions", "info types", and | |
3229 | "info variables". It calls search_symbols to find all matches and then | |
3230 | print_[m]symbol_info to print out some useful information about the | |
3231 | matches. | |
3232 | */ | |
3233 | static void | |
3234 | symtab_symbol_info (regexp, kind, from_tty) | |
3235 | char *regexp; | |
3236 | namespace_enum kind; | |
3237 | int from_tty; | |
3238 | { | |
3239 | static char *classnames[] | |
3240 | = {"variable", "function", "type", "method"}; | |
3241 | struct symbol_search *symbols; | |
3242 | struct symbol_search *p; | |
3243 | struct cleanup *old_chain; | |
3244 | char *last_filename = NULL; | |
3245 | int first = 1; | |
3246 | ||
3247 | /* must make sure that if we're interrupted, symbols gets freed */ | |
3248 | search_symbols (regexp, kind, 0, (char **) NULL, &symbols); | |
3249 | old_chain = make_cleanup (free_search_symbols, symbols); | |
3250 | ||
3251 | printf_filtered (regexp | |
3252 | ? "All %ss matching regular expression \"%s\":\n" | |
3253 | : "All defined %ss:\n", | |
3254 | classnames[(int) (kind - LABEL_NAMESPACE - 1)], regexp); | |
3255 | ||
3256 | for (p = symbols; p != NULL; p = p->next) | |
3257 | { | |
3258 | QUIT; | |
3259 | ||
3260 | if (p->msymbol != NULL) | |
3261 | { | |
3262 | if (first) | |
3263 | { | |
3264 | printf_filtered ("\nNon-debugging symbols:\n"); | |
3265 | first = 0; | |
3266 | } | |
3267 | print_msymbol_info (p->msymbol); | |
3268 | } | |
3269 | else | |
3270 | { | |
3271 | print_symbol_info (kind, | |
3272 | p->symtab, | |
3273 | p->symbol, | |
3274 | p->block, | |
3275 | last_filename); | |
3276 | last_filename = p->symtab->filename; | |
3277 | } | |
3278 | } | |
3279 | ||
3280 | do_cleanups (old_chain); | |
bd5635a1 RP |
3281 | } |
3282 | ||
3283 | static void | |
35a25840 | 3284 | variables_info (regexp, from_tty) |
bd5635a1 | 3285 | char *regexp; |
35a25840 | 3286 | int from_tty; |
bd5635a1 | 3287 | { |
7f6cb62e | 3288 | symtab_symbol_info (regexp, VARIABLES_NAMESPACE, from_tty); |
bd5635a1 RP |
3289 | } |
3290 | ||
3291 | static void | |
35a25840 | 3292 | functions_info (regexp, from_tty) |
bd5635a1 | 3293 | char *regexp; |
35a25840 | 3294 | int from_tty; |
bd5635a1 | 3295 | { |
7f6cb62e | 3296 | symtab_symbol_info (regexp, FUNCTIONS_NAMESPACE, from_tty); |
bd5635a1 RP |
3297 | } |
3298 | ||
bd5635a1 | 3299 | static void |
35a25840 | 3300 | types_info (regexp, from_tty) |
bd5635a1 | 3301 | char *regexp; |
35a25840 | 3302 | int from_tty; |
bd5635a1 | 3303 | { |
7f6cb62e | 3304 | symtab_symbol_info (regexp, TYPES_NAMESPACE, from_tty); |
bd5635a1 | 3305 | } |
bd5635a1 RP |
3306 | |
3307 | #if 0 | |
3308 | /* Tiemann says: "info methods was never implemented." */ | |
3309 | static void | |
3310 | methods_info (regexp) | |
3311 | char *regexp; | |
3312 | { | |
7f6cb62e | 3313 | symtab_symbol_info (regexp, METHODS_NAMESPACE, 0, from_tty); |
bd5635a1 RP |
3314 | } |
3315 | #endif /* 0 */ | |
3316 | ||
3317 | /* Breakpoint all functions matching regular expression. */ | |
3318 | static void | |
35a25840 | 3319 | rbreak_command (regexp, from_tty) |
bd5635a1 | 3320 | char *regexp; |
35a25840 | 3321 | int from_tty; |
bd5635a1 | 3322 | { |
7f6cb62e KS |
3323 | struct symbol_search *ss; |
3324 | struct symbol_search *p; | |
3325 | struct cleanup *old_chain; | |
3326 | ||
3327 | search_symbols (regexp, FUNCTIONS_NAMESPACE, 0, (char **) NULL, &ss); | |
3328 | old_chain = make_cleanup (free_search_symbols, ss); | |
3329 | ||
3330 | for (p = ss; p != NULL; p = p->next) | |
3331 | { | |
3332 | if (p->msymbol == NULL) | |
3333 | { | |
3334 | char *string = (char *) alloca (strlen (p->symtab->filename) | |
3335 | + strlen (SYMBOL_NAME (p->symbol)) | |
3336 | + 4); | |
3337 | strcpy (string, p->symtab->filename); | |
3338 | strcat (string, ":'"); | |
3339 | strcat (string, SYMBOL_NAME (p->symbol)); | |
3340 | strcat (string, "'"); | |
3341 | break_command (string, from_tty); | |
3342 | print_symbol_info (FUNCTIONS_NAMESPACE, | |
3343 | p->symtab, | |
3344 | p->symbol, | |
3345 | p->block, | |
3346 | p->symtab->filename); | |
3347 | } | |
3348 | else | |
3349 | { | |
3350 | break_command (SYMBOL_NAME (p->msymbol), from_tty); | |
3351 | printf_filtered ("<function, no debug info> %s;\n", | |
3352 | SYMBOL_SOURCE_NAME (p->msymbol)); | |
3353 | } | |
3354 | } | |
3355 | ||
3356 | do_cleanups (old_chain); | |
bd5635a1 | 3357 | } |
bd5635a1 | 3358 | |
7f6cb62e | 3359 | \f |
bd5635a1 RP |
3360 | /* Return Nonzero if block a is lexically nested within block b, |
3361 | or if a and b have the same pc range. | |
3362 | Return zero otherwise. */ | |
3363 | int | |
3364 | contained_in (a, b) | |
3365 | struct block *a, *b; | |
3366 | { | |
3367 | if (!a || !b) | |
3368 | return 0; | |
3369 | return BLOCK_START (a) >= BLOCK_START (b) | |
3370 | && BLOCK_END (a) <= BLOCK_END (b); | |
3371 | } | |
3372 | ||
3373 | \f | |
3374 | /* Helper routine for make_symbol_completion_list. */ | |
3375 | ||
f70be3e4 JG |
3376 | static int return_val_size; |
3377 | static int return_val_index; | |
3378 | static char **return_val; | |
3379 | ||
f1ed4330 | 3380 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ |
2e4964ad | 3381 | do { \ |
f1ed4330 | 3382 | if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \ |
67a64bec JK |
3383 | /* Put only the mangled name on the list. */ \ |
3384 | /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \ | |
3385 | /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \ | |
f1ed4330 JK |
3386 | completion_list_add_name \ |
3387 | (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \ | |
67a64bec JK |
3388 | else \ |
3389 | completion_list_add_name \ | |
3390 | (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \ | |
2e4964ad FF |
3391 | } while (0) |
3392 | ||
3393 | /* Test to see if the symbol specified by SYMNAME (which is already | |
f1ed4330 | 3394 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
2e4964ad | 3395 | characters. If so, add it to the current completion list. */ |
bd5635a1 | 3396 | |
cba0d141 | 3397 | static void |
f1ed4330 | 3398 | completion_list_add_name (symname, sym_text, sym_text_len, text, word) |
bd5635a1 | 3399 | char *symname; |
f1ed4330 JK |
3400 | char *sym_text; |
3401 | int sym_text_len; | |
f70be3e4 | 3402 | char *text; |
f1ed4330 | 3403 | char *word; |
bd5635a1 | 3404 | { |
f70be3e4 | 3405 | int newsize; |
8005788c RP |
3406 | int i; |
3407 | ||
3408 | /* clip symbols that cannot match */ | |
3409 | ||
f1ed4330 | 3410 | if (strncmp (symname, sym_text, sym_text_len) != 0) |
2e4964ad | 3411 | { |
8005788c RP |
3412 | return; |
3413 | } | |
f70be3e4 | 3414 | |
2e4964ad FF |
3415 | /* Clip any symbol names that we've already considered. (This is a |
3416 | time optimization) */ | |
8005788c | 3417 | |
2e4964ad FF |
3418 | for (i = 0; i < return_val_index; ++i) |
3419 | { | |
3420 | if (STREQ (symname, return_val[i])) | |
3421 | { | |
3422 | return; | |
3423 | } | |
f70be3e4 | 3424 | } |
2e4964ad FF |
3425 | |
3426 | /* We have a match for a completion, so add SYMNAME to the current list | |
3427 | of matches. Note that the name is moved to freshly malloc'd space. */ | |
f70be3e4 | 3428 | |
f1ed4330 JK |
3429 | { |
3430 | char *new; | |
3431 | if (word == sym_text) | |
3432 | { | |
3433 | new = xmalloc (strlen (symname) + 5); | |
3434 | strcpy (new, symname); | |
3435 | } | |
3436 | else if (word > sym_text) | |
3437 | { | |
3438 | /* Return some portion of symname. */ | |
3439 | new = xmalloc (strlen (symname) + 5); | |
3440 | strcpy (new, symname + (word - sym_text)); | |
3441 | } | |
3442 | else | |
3443 | { | |
3444 | /* Return some of SYM_TEXT plus symname. */ | |
3445 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
3446 | strncpy (new, word, sym_text - word); | |
3447 | new[sym_text - word] = '\0'; | |
3448 | strcat (new, symname); | |
3449 | } | |
3450 | ||
2b576293 C |
3451 | /* Recheck for duplicates if we intend to add a modified symbol. */ |
3452 | if (word != sym_text) | |
3453 | { | |
3454 | for (i = 0; i < return_val_index; ++i) | |
3455 | { | |
3456 | if (STREQ (new, return_val[i])) | |
3457 | { | |
3458 | free (new); | |
3459 | return; | |
3460 | } | |
3461 | } | |
3462 | } | |
3463 | ||
f1ed4330 JK |
3464 | if (return_val_index + 3 > return_val_size) |
3465 | { | |
3466 | newsize = (return_val_size *= 2) * sizeof (char *); | |
3467 | return_val = (char **) xrealloc ((char *) return_val, newsize); | |
3468 | } | |
3469 | return_val[return_val_index++] = new; | |
3470 | return_val[return_val_index] = NULL; | |
3471 | } | |
bd5635a1 RP |
3472 | } |
3473 | ||
3474 | /* Return a NULL terminated array of all symbols (regardless of class) which | |
3475 | begin by matching TEXT. If the answer is no symbols, then the return value | |
3476 | is an array which contains only a NULL pointer. | |
3477 | ||
f70be3e4 JG |
3478 | Problem: All of the symbols have to be copied because readline frees them. |
3479 | I'm not going to worry about this; hopefully there won't be that many. */ | |
bd5635a1 RP |
3480 | |
3481 | char ** | |
f1ed4330 JK |
3482 | make_symbol_completion_list (text, word) |
3483 | char *text; | |
3484 | char *word; | |
bd5635a1 | 3485 | { |
f70be3e4 | 3486 | register struct symbol *sym; |
bd5635a1 RP |
3487 | register struct symtab *s; |
3488 | register struct partial_symtab *ps; | |
cba0d141 JG |
3489 | register struct minimal_symbol *msymbol; |
3490 | register struct objfile *objfile; | |
bd5635a1 | 3491 | register struct block *b, *surrounding_static_block = 0; |
bd5635a1 | 3492 | register int i, j; |
b607efe7 | 3493 | struct partial_symbol **psym; |
f1ed4330 JK |
3494 | /* The symbol we are completing on. Points in same buffer as text. */ |
3495 | char *sym_text; | |
3496 | /* Length of sym_text. */ | |
3497 | int sym_text_len; | |
3498 | ||
3499 | /* Now look for the symbol we are supposed to complete on. | |
3500 | FIXME: This should be language-specific. */ | |
3501 | { | |
3502 | char *p; | |
3503 | char quote_found; | |
01d3fdba | 3504 | char *quote_pos = NULL; |
f1ed4330 JK |
3505 | |
3506 | /* First see if this is a quoted string. */ | |
3507 | quote_found = '\0'; | |
3508 | for (p = text; *p != '\0'; ++p) | |
3509 | { | |
3510 | if (quote_found != '\0') | |
3511 | { | |
3512 | if (*p == quote_found) | |
3513 | /* Found close quote. */ | |
3514 | quote_found = '\0'; | |
3515 | else if (*p == '\\' && p[1] == quote_found) | |
3516 | /* A backslash followed by the quote character | |
3517 | doesn't end the string. */ | |
3518 | ++p; | |
3519 | } | |
3520 | else if (*p == '\'' || *p == '"') | |
3521 | { | |
3522 | quote_found = *p; | |
3523 | quote_pos = p; | |
3524 | } | |
3525 | } | |
3526 | if (quote_found == '\'') | |
3527 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3528 | sym_text = quote_pos + 1; | |
3529 | else if (quote_found == '"') | |
3530 | /* A double-quoted string is never a symbol, nor does it make sense | |
3531 | to complete it any other way. */ | |
3532 | return NULL; | |
3533 | else | |
3534 | { | |
3535 | /* It is not a quoted string. Break it based on the characters | |
3536 | which are in symbols. */ | |
3537 | while (p > text) | |
3538 | { | |
3539 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
3540 | --p; | |
3541 | else | |
3542 | break; | |
3543 | } | |
3544 | sym_text = p; | |
3545 | } | |
3546 | } | |
3547 | ||
3548 | sym_text_len = strlen (sym_text); | |
bd5635a1 | 3549 | |
bd5635a1 RP |
3550 | return_val_size = 100; |
3551 | return_val_index = 0; | |
f70be3e4 JG |
3552 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); |
3553 | return_val[0] = NULL; | |
bd5635a1 RP |
3554 | |
3555 | /* Look through the partial symtabs for all symbols which begin | |
f1ed4330 | 3556 | by matching SYM_TEXT. Add each one that you find to the list. */ |
bd5635a1 | 3557 | |
35a25840 | 3558 | ALL_PSYMTABS (objfile, ps) |
bd5635a1 | 3559 | { |
35a25840 SG |
3560 | /* If the psymtab's been read in we'll get it when we search |
3561 | through the blockvector. */ | |
3562 | if (ps->readin) continue; | |
3563 | ||
3564 | for (psym = objfile->global_psymbols.list + ps->globals_offset; | |
3565 | psym < (objfile->global_psymbols.list + ps->globals_offset | |
3566 | + ps->n_global_syms); | |
3567 | psym++) | |
bd5635a1 | 3568 | { |
f70be3e4 JG |
3569 | /* If interrupted, then quit. */ |
3570 | QUIT; | |
b607efe7 | 3571 | COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word); |
35a25840 SG |
3572 | } |
3573 | ||
3574 | for (psym = objfile->static_psymbols.list + ps->statics_offset; | |
3575 | psym < (objfile->static_psymbols.list + ps->statics_offset | |
3576 | + ps->n_static_syms); | |
3577 | psym++) | |
3578 | { | |
3579 | QUIT; | |
b607efe7 | 3580 | COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word); |
bd5635a1 RP |
3581 | } |
3582 | } | |
3583 | ||
cba0d141 | 3584 | /* At this point scan through the misc symbol vectors and add each |
bd5635a1 RP |
3585 | symbol you find to the list. Eventually we want to ignore |
3586 | anything that isn't a text symbol (everything else will be | |
3587 | handled by the psymtab code above). */ | |
3588 | ||
35a25840 | 3589 | ALL_MSYMBOLS (objfile, msymbol) |
cba0d141 | 3590 | { |
f70be3e4 | 3591 | QUIT; |
f1ed4330 | 3592 | COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word); |
cba0d141 | 3593 | } |
bd5635a1 RP |
3594 | |
3595 | /* Search upwards from currently selected frame (so that we can | |
3596 | complete on local vars. */ | |
f70be3e4 JG |
3597 | |
3598 | for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b)) | |
3599 | { | |
3600 | if (!BLOCK_SUPERBLOCK (b)) | |
3601 | { | |
3602 | surrounding_static_block = b; /* For elmin of dups */ | |
3603 | } | |
3604 | ||
3605 | /* Also catch fields of types defined in this places which match our | |
3606 | text string. Only complete on types visible from current context. */ | |
3607 | ||
3608 | for (i = 0; i < BLOCK_NSYMS (b); i++) | |
3609 | { | |
3610 | sym = BLOCK_SYM (b, i); | |
f1ed4330 | 3611 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
f70be3e4 JG |
3612 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
3613 | { | |
3614 | struct type *t = SYMBOL_TYPE (sym); | |
3615 | enum type_code c = TYPE_CODE (t); | |
3616 | ||
3617 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
3618 | { | |
3619 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
3620 | { | |
3621 | if (TYPE_FIELD_NAME (t, j)) | |
3622 | { | |
2e4964ad | 3623 | completion_list_add_name (TYPE_FIELD_NAME (t, j), |
f1ed4330 | 3624 | sym_text, sym_text_len, text, word); |
f70be3e4 JG |
3625 | } |
3626 | } | |
3627 | } | |
3628 | } | |
3629 | } | |
3630 | } | |
3631 | ||
3632 | /* Go through the symtabs and check the externs and statics for | |
3633 | symbols which match. */ | |
3634 | ||
3635 | ALL_SYMTABS (objfile, s) | |
3636 | { | |
3637 | QUIT; | |
3638 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
3639 | for (i = 0; i < BLOCK_NSYMS (b); i++) | |
3640 | { | |
3641 | sym = BLOCK_SYM (b, i); | |
f1ed4330 | 3642 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
f70be3e4 JG |
3643 | } |
3644 | } | |
3645 | ||
3646 | ALL_SYMTABS (objfile, s) | |
3647 | { | |
3648 | QUIT; | |
3649 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
3650 | /* Don't do this block twice. */ | |
3651 | if (b == surrounding_static_block) continue; | |
3652 | for (i = 0; i < BLOCK_NSYMS (b); i++) | |
3653 | { | |
3654 | sym = BLOCK_SYM (b, i); | |
f1ed4330 | 3655 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
f70be3e4 JG |
3656 | } |
3657 | } | |
3658 | ||
3659 | return (return_val); | |
3660 | } | |
3661 | ||
3f687c78 SG |
3662 | /* Determine if PC is in the prologue of a function. The prologue is the area |
3663 | between the first instruction of a function, and the first executable line. | |
3664 | Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue. | |
9b041f69 | 3665 | |
211b564e | 3666 | If non-zero, func_start is where we think the prologue starts, possibly |
9b041f69 | 3667 | by previous examination of symbol table information. |
3f687c78 SG |
3668 | */ |
3669 | ||
3670 | int | |
3671 | in_prologue (pc, func_start) | |
3672 | CORE_ADDR pc; | |
3673 | CORE_ADDR func_start; | |
3674 | { | |
3675 | struct symtab_and_line sal; | |
3676 | CORE_ADDR func_addr, func_end; | |
3677 | ||
3678 | if (!find_pc_partial_function (pc, NULL, &func_addr, &func_end)) | |
3679 | goto nosyms; /* Might be in prologue */ | |
3680 | ||
3681 | sal = find_pc_line (func_addr, 0); | |
3682 | ||
3683 | if (sal.line == 0) | |
3684 | goto nosyms; | |
3685 | ||
3686 | if (sal.end > func_addr | |
3687 | && sal.end <= func_end) /* Is prologue in function? */ | |
3688 | return pc < sal.end; /* Yes, is pc in prologue? */ | |
3689 | ||
3690 | /* The line after the prologue seems to be outside the function. In this | |
3691 | case, tell the caller to find the prologue the hard way. */ | |
3692 | ||
3693 | return 1; | |
3694 | ||
3695 | /* Come here when symtabs don't contain line # info. In this case, it is | |
3696 | likely that the user has stepped into a library function w/o symbols, or | |
3697 | is doing a stepi/nexti through code without symbols. */ | |
3698 | ||
3699 | nosyms: | |
3700 | ||
9b041f69 PS |
3701 | /* If func_start is zero (meaning unknown) then we don't know whether pc is |
3702 | in the prologue or not. I.E. it might be. */ | |
3703 | ||
3704 | if (!func_start) return 1; | |
3705 | ||
3f687c78 SG |
3706 | /* We need to call the target-specific prologue skipping functions with the |
3707 | function's start address because PC may be pointing at an instruction that | |
3708 | could be mistakenly considered part of the prologue. */ | |
3709 | ||
3710 | SKIP_PROLOGUE (func_start); | |
3711 | ||
3712 | return pc < func_start; | |
3713 | } | |
3714 | ||
997a978c | 3715 | \f |
bd5635a1 RP |
3716 | void |
3717 | _initialize_symtab () | |
3718 | { | |
3719 | add_info ("variables", variables_info, | |
3720 | "All global and static variable names, or those matching REGEXP."); | |
3721 | add_info ("functions", functions_info, | |
3722 | "All function names, or those matching REGEXP."); | |
3ba6a043 JG |
3723 | |
3724 | /* FIXME: This command has at least the following problems: | |
bd5635a1 RP |
3725 | 1. It prints builtin types (in a very strange and confusing fashion). |
3726 | 2. It doesn't print right, e.g. with | |
3727 | typedef struct foo *FOO | |
3728 | type_print prints "FOO" when we want to make it (in this situation) | |
3729 | print "struct foo *". | |
3730 | I also think "ptype" or "whatis" is more likely to be useful (but if | |
3731 | there is much disagreement "info types" can be fixed). */ | |
3732 | add_info ("types", types_info, | |
a0a6174a | 3733 | "All type names, or those matching REGEXP."); |
3ba6a043 | 3734 | |
bd5635a1 RP |
3735 | #if 0 |
3736 | add_info ("methods", methods_info, | |
3737 | "All method names, or those matching REGEXP::REGEXP.\n\ | |
50e0dc41 | 3738 | If the class qualifier is omitted, it is assumed to be the current scope.\n\ |
cba0d141 | 3739 | If the first REGEXP is omitted, then all methods matching the second REGEXP\n\ |
bd5635a1 RP |
3740 | are listed."); |
3741 | #endif | |
3742 | add_info ("sources", sources_info, | |
3743 | "Source files in the program."); | |
3744 | ||
e21fb2ae | 3745 | add_com ("rbreak", class_breakpoint, rbreak_command, |
bd5635a1 RP |
3746 | "Set a breakpoint for all functions matching REGEXP."); |
3747 | ||
997a978c | 3748 | /* Initialize the one built-in type that isn't language dependent... */ |
cba0d141 JG |
3749 | builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0, |
3750 | "<unknown type>", (struct objfile *) NULL); | |
bd5635a1 | 3751 | } |