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import gdb-1999-07-07 post reformat
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c906108c
SS
1/* Symbol table lookup for the GNU debugger, GDB.
2 Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
c5aa993b 3 Free Software Foundation, Inc.
c906108c 4
c5aa993b 5 This file is part of GDB.
c906108c 6
c5aa993b
JM
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
c906108c 11
c5aa993b
JM
12 This program is distributed in the hope that it will be useful,
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.
c906108c 16
c5aa993b
JM
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
c906108c
SS
21
22#include "defs.h"
23#include "symtab.h"
24#include "gdbtypes.h"
25#include "gdbcore.h"
26#include "frame.h"
27#include "target.h"
28#include "value.h"
29#include "symfile.h"
30#include "objfiles.h"
31#include "gdbcmd.h"
32#include "call-cmds.h"
33#include "gnu-regex.h"
34#include "expression.h"
35#include "language.h"
36#include "demangle.h"
37#include "inferior.h"
38
39#include "obstack.h"
40
41#include <sys/types.h>
42#include <fcntl.h>
43#include "gdb_string.h"
44#include "gdb_stat.h"
45#include <ctype.h>
46
47/* Prototype for one function in parser-defs.h,
48 instead of including that entire file. */
49
c5aa993b 50extern char *find_template_name_end PARAMS ((char *));
c906108c
SS
51
52/* Prototypes for local functions */
53
54static int find_methods PARAMS ((struct type *, char *, struct symbol **));
55
c5aa993b
JM
56static void completion_list_add_name PARAMS ((char *, char *, int, char *,
57 char *));
c906108c 58
c5aa993b
JM
59static void build_canonical_line_spec PARAMS ((struct symtab_and_line *,
60 char *, char ***));
c906108c 61
c5aa993b
JM
62static struct symtabs_and_lines decode_line_2 PARAMS ((struct symbol *[],
63 int, int, char ***));
c906108c
SS
64
65static void rbreak_command PARAMS ((char *, int));
66
67static void types_info PARAMS ((char *, int));
68
69static void functions_info PARAMS ((char *, int));
70
71static void variables_info PARAMS ((char *, int));
72
73static void sources_info PARAMS ((char *, int));
74
75static void output_source_filename PARAMS ((char *, int *));
76
77char *operator_chars PARAMS ((char *, char **));
78
79static int find_line_common PARAMS ((struct linetable *, int, int *));
80
c5aa993b
JM
81static struct partial_symbol *lookup_partial_symbol PARAMS
82 ((struct partial_symtab *, const char *,
83 int, namespace_enum));
c906108c 84
c5aa993b
JM
85static struct partial_symbol *fixup_psymbol_section PARAMS ((struct
86 partial_symbol *, struct objfile *));
c906108c
SS
87
88static struct symtab *lookup_symtab_1 PARAMS ((char *));
89
90static void cplusplus_hint PARAMS ((char *));
91
c5aa993b
JM
92static struct symbol *find_active_alias PARAMS ((struct symbol * sym,
93 CORE_ADDR addr));
c906108c
SS
94
95/* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
96/* Signals the presence of objects compiled by HP compilers */
97int hp_som_som_object_present = 0;
98
c5aa993b
JM
99static void fixup_section PARAMS ((struct general_symbol_info *,
100 struct objfile *));
c906108c
SS
101
102static int file_matches PARAMS ((char *, char **, int));
103
c5aa993b
JM
104static void print_symbol_info PARAMS ((namespace_enum,
105 struct symtab *, struct symbol *,
106 int, char *));
c906108c
SS
107
108static void print_msymbol_info PARAMS ((struct minimal_symbol *));
109
110static void symtab_symbol_info PARAMS ((char *, namespace_enum, int));
111
c5aa993b 112static void overload_list_add_symbol PARAMS ((struct symbol * sym,
392a587b
JM
113 char *oload_name));
114
c906108c
SS
115void _initialize_symtab PARAMS ((void));
116
117/* */
118
119/* The single non-language-specific builtin type */
120struct type *builtin_type_error;
121
122/* Block in which the most recently searched-for symbol was found.
123 Might be better to make this a parameter to lookup_symbol and
124 value_of_this. */
125
126const struct block *block_found;
127
128char no_symtab_msg[] = "No symbol table is loaded. Use the \"file\" command.";
129
130/* While the C++ support is still in flux, issue a possibly helpful hint on
131 using the new command completion feature on single quoted demangled C++
132 symbols. Remove when loose ends are cleaned up. FIXME -fnf */
133
134static void
135cplusplus_hint (name)
136 char *name;
137{
138 while (*name == '\'')
139 name++;
140 printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name);
141 printf_filtered ("(Note leading single quote.)\n");
142}
143
144/* Check for a symtab of a specific name; first in symtabs, then in
145 psymtabs. *If* there is no '/' in the name, a match after a '/'
146 in the symtab filename will also work. */
147
148static struct symtab *
149lookup_symtab_1 (name)
150 char *name;
151{
152 register struct symtab *s;
153 register struct partial_symtab *ps;
154 register char *slash;
155 register struct objfile *objfile;
156
c5aa993b 157got_symtab:
c906108c
SS
158
159 /* First, search for an exact match */
160
161 ALL_SYMTABS (objfile, s)
162 if (STREQ (name, s->filename))
c5aa993b 163 return s;
c906108c
SS
164
165 slash = strchr (name, '/');
166
167 /* Now, search for a matching tail (only if name doesn't have any dirs) */
168
169 if (!slash)
170 ALL_SYMTABS (objfile, s)
c5aa993b
JM
171 {
172 char *p = s->filename;
173 char *tail = strrchr (p, '/');
c906108c 174
c5aa993b
JM
175 if (tail)
176 p = tail + 1;
c906108c 177
c5aa993b
JM
178 if (STREQ (p, name))
179 return s;
180 }
c906108c
SS
181
182 /* Same search rules as above apply here, but now we look thru the
183 psymtabs. */
184
185 ps = lookup_partial_symtab (name);
186 if (!ps)
187 return (NULL);
188
c5aa993b 189 if (ps->readin)
c906108c 190 error ("Internal: readin %s pst for `%s' found when no symtab found.",
c5aa993b 191 ps->filename, name);
c906108c
SS
192
193 s = PSYMTAB_TO_SYMTAB (ps);
194
195 if (s)
196 return s;
197
198 /* At this point, we have located the psymtab for this file, but
199 the conversion to a symtab has failed. This usually happens
200 when we are looking up an include file. In this case,
201 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
202 been created. So, we need to run through the symtabs again in
203 order to find the file.
204 XXX - This is a crock, and should be fixed inside of the the
205 symbol parsing routines. */
206 goto got_symtab;
207}
208
209/* Lookup the symbol table of a source file named NAME. Try a couple
210 of variations if the first lookup doesn't work. */
211
212struct symtab *
213lookup_symtab (name)
214 char *name;
215{
216 register struct symtab *s;
217#if 0
218 register char *copy;
219#endif
220
221 s = lookup_symtab_1 (name);
c5aa993b
JM
222 if (s)
223 return s;
c906108c
SS
224
225#if 0
226 /* This screws c-exp.y:yylex if there is both a type "tree" and a symtab
227 "tree.c". */
228
229 /* If name not found as specified, see if adding ".c" helps. */
230 /* Why is this? Is it just a user convenience? (If so, it's pretty
231 questionable in the presence of C++, FORTRAN, etc.). It's not in
232 the GDB manual. */
233
234 copy = (char *) alloca (strlen (name) + 3);
235 strcpy (copy, name);
236 strcat (copy, ".c");
237 s = lookup_symtab_1 (copy);
c5aa993b
JM
238 if (s)
239 return s;
c906108c
SS
240#endif /* 0 */
241
242 /* We didn't find anything; die. */
243 return 0;
244}
245
246/* Lookup the partial symbol table of a source file named NAME.
247 *If* there is no '/' in the name, a match after a '/'
248 in the psymtab filename will also work. */
249
250struct partial_symtab *
251lookup_partial_symtab (name)
c5aa993b 252 char *name;
c906108c
SS
253{
254 register struct partial_symtab *pst;
255 register struct objfile *objfile;
c5aa993b 256
c906108c 257 ALL_PSYMTABS (objfile, pst)
c5aa993b
JM
258 {
259 if (STREQ (name, pst->filename))
260 {
261 return (pst);
262 }
263 }
c906108c
SS
264
265 /* Now, search for a matching tail (only if name doesn't have any dirs) */
266
267 if (!strchr (name, '/'))
268 ALL_PSYMTABS (objfile, pst)
c5aa993b
JM
269 {
270 char *p = pst->filename;
271 char *tail = strrchr (p, '/');
c906108c 272
c5aa993b
JM
273 if (tail)
274 p = tail + 1;
c906108c 275
c5aa993b
JM
276 if (STREQ (p, name))
277 return (pst);
278 }
c906108c
SS
279
280 return (NULL);
281}
282\f
283/* Mangle a GDB method stub type. This actually reassembles the pieces of the
284 full method name, which consist of the class name (from T), the unadorned
285 method name from METHOD_ID, and the signature for the specific overload,
286 specified by SIGNATURE_ID. Note that this function is g++ specific. */
287
288char *
289gdb_mangle_name (type, method_id, signature_id)
290 struct type *type;
291 int method_id, signature_id;
292{
293 int mangled_name_len;
294 char *mangled_name;
295 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id);
296 struct fn_field *method = &f[signature_id];
297 char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id);
298 char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id);
299 char *newname = type_name_no_tag (type);
300
301 /* Does the form of physname indicate that it is the full mangled name
302 of a constructor (not just the args)? */
303 int is_full_physname_constructor;
304
305 int is_constructor;
306 int is_destructor = DESTRUCTOR_PREFIX_P (physname);
307 /* Need a new type prefix. */
308 char *const_prefix = method->is_const ? "C" : "";
309 char *volatile_prefix = method->is_volatile ? "V" : "";
310 char buf[20];
311 int len = (newname == NULL ? 0 : strlen (newname));
312
c5aa993b
JM
313 is_full_physname_constructor =
314 ((physname[0] == '_' && physname[1] == '_' &&
315 (isdigit (physname[2]) || physname[2] == 'Q' || physname[2] == 't'))
316 || (strncmp (physname, "__ct", 4) == 0));
c906108c
SS
317
318 is_constructor =
c5aa993b 319 is_full_physname_constructor || (newname && STREQ (field_name, newname));
c906108c
SS
320
321 if (!is_destructor)
c5aa993b 322 is_destructor = (strncmp (physname, "__dt", 4) == 0);
c906108c
SS
323
324 if (is_destructor || is_full_physname_constructor)
325 {
c5aa993b
JM
326 mangled_name = (char *) xmalloc (strlen (physname) + 1);
327 strcpy (mangled_name, physname);
c906108c
SS
328 return mangled_name;
329 }
330
331 if (len == 0)
332 {
333 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
334 }
335 else if (physname[0] == 't' || physname[0] == 'Q')
336 {
337 /* The physname for template and qualified methods already includes
c5aa993b 338 the class name. */
c906108c
SS
339 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
340 newname = NULL;
341 len = 0;
342 }
343 else
344 {
345 sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len);
346 }
347 mangled_name_len = ((is_constructor ? 0 : strlen (field_name))
c5aa993b
JM
348 + strlen (buf) + len
349 + strlen (physname)
350 + 1);
c906108c
SS
351
352 /* Only needed for GNU-mangled names. ANSI-mangled names
353 work with the normal mechanisms. */
354 if (OPNAME_PREFIX_P (field_name))
355 {
356 const char *opname = cplus_mangle_opname (field_name + 3, 0);
357 if (opname == NULL)
358 error ("No mangling for \"%s\"", field_name);
359 mangled_name_len += strlen (opname);
c5aa993b 360 mangled_name = (char *) xmalloc (mangled_name_len);
c906108c
SS
361
362 strncpy (mangled_name, field_name, 3);
363 mangled_name[3] = '\0';
364 strcat (mangled_name, opname);
365 }
366 else
367 {
c5aa993b 368 mangled_name = (char *) xmalloc (mangled_name_len);
c906108c
SS
369 if (is_constructor)
370 mangled_name[0] = '\0';
371 else
372 strcpy (mangled_name, field_name);
373 }
374 strcat (mangled_name, buf);
375 /* If the class doesn't have a name, i.e. newname NULL, then we just
376 mangle it using 0 for the length of the class. Thus it gets mangled
c5aa993b 377 as something starting with `::' rather than `classname::'. */
c906108c
SS
378 if (newname != NULL)
379 strcat (mangled_name, newname);
380
381 strcat (mangled_name, physname);
382 return (mangled_name);
383}
c906108c
SS
384\f
385
c5aa993b 386
c906108c
SS
387/* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
388
389struct partial_symtab *
390find_pc_sect_psymtab (pc, section)
391 CORE_ADDR pc;
392 asection *section;
393{
394 register struct partial_symtab *pst;
395 register struct objfile *objfile;
396
397 ALL_PSYMTABS (objfile, pst)
c5aa993b 398 {
c906108c 399#if defined(HPUXHPPA)
c5aa993b 400 if (pc >= pst->textlow && pc <= pst->texthigh)
c906108c 401#else
c5aa993b 402 if (pc >= pst->textlow && pc < pst->texthigh)
c906108c 403#endif
c5aa993b
JM
404 {
405 struct minimal_symbol *msymbol;
406 struct partial_symtab *tpst;
407
408 /* An objfile that has its functions reordered might have
409 many partial symbol tables containing the PC, but
410 we want the partial symbol table that contains the
411 function containing the PC. */
412 if (!(objfile->flags & OBJF_REORDERED) &&
413 section == 0) /* can't validate section this way */
414 return (pst);
415
416 msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
417 if (msymbol == NULL)
418 return (pst);
419
420 for (tpst = pst; tpst != NULL; tpst = tpst->next)
421 {
c906108c 422#if defined(HPUXHPPA)
c5aa993b 423 if (pc >= tpst->textlow && pc <= tpst->texthigh)
c906108c 424#else
c5aa993b 425 if (pc >= tpst->textlow && pc < tpst->texthigh)
c906108c 426#endif
c5aa993b
JM
427 {
428 struct partial_symbol *p;
c906108c 429
c5aa993b
JM
430 p = find_pc_sect_psymbol (tpst, pc, section);
431 if (p != NULL
432 && SYMBOL_VALUE_ADDRESS (p)
433 == SYMBOL_VALUE_ADDRESS (msymbol))
434 return (tpst);
435 }
436 }
437 return (pst);
438 }
439 }
c906108c
SS
440 return (NULL);
441}
442
443/* Find which partial symtab contains PC. Return 0 if none.
444 Backward compatibility, no section */
445
446struct partial_symtab *
447find_pc_psymtab (pc)
448 CORE_ADDR pc;
449{
450 return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc));
451}
452
453/* Find which partial symbol within a psymtab matches PC and SECTION.
454 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
455
456struct partial_symbol *
457find_pc_sect_psymbol (psymtab, pc, section)
458 struct partial_symtab *psymtab;
459 CORE_ADDR pc;
460 asection *section;
461{
462 struct partial_symbol *best = NULL, *p, **pp;
463 CORE_ADDR best_pc;
c5aa993b 464
c906108c
SS
465 if (!psymtab)
466 psymtab = find_pc_sect_psymtab (pc, section);
467 if (!psymtab)
468 return 0;
469
470 /* Cope with programs that start at address 0 */
471 best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0;
472
473 /* Search the global symbols as well as the static symbols, so that
474 find_pc_partial_function doesn't use a minimal symbol and thus
475 cache a bad endaddr. */
476 for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset;
c5aa993b
JM
477 (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset)
478 < psymtab->n_global_syms);
c906108c
SS
479 pp++)
480 {
481 p = *pp;
482 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
483 && SYMBOL_CLASS (p) == LOC_BLOCK
484 && pc >= SYMBOL_VALUE_ADDRESS (p)
485 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
486 || (psymtab->textlow == 0
487 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
488 {
c5aa993b 489 if (section) /* match on a specific section */
c906108c
SS
490 {
491 fixup_psymbol_section (p, psymtab->objfile);
492 if (SYMBOL_BFD_SECTION (p) != section)
493 continue;
494 }
495 best_pc = SYMBOL_VALUE_ADDRESS (p);
496 best = p;
497 }
498 }
499
500 for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset;
c5aa993b
JM
501 (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset)
502 < psymtab->n_static_syms);
c906108c
SS
503 pp++)
504 {
505 p = *pp;
506 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
507 && SYMBOL_CLASS (p) == LOC_BLOCK
508 && pc >= SYMBOL_VALUE_ADDRESS (p)
509 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
c5aa993b 510 || (psymtab->textlow == 0
c906108c
SS
511 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
512 {
c5aa993b 513 if (section) /* match on a specific section */
c906108c
SS
514 {
515 fixup_psymbol_section (p, psymtab->objfile);
516 if (SYMBOL_BFD_SECTION (p) != section)
517 continue;
518 }
519 best_pc = SYMBOL_VALUE_ADDRESS (p);
520 best = p;
521 }
522 }
523
524 return best;
525}
526
527/* Find which partial symbol within a psymtab matches PC. Return 0 if none.
528 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
529
530struct partial_symbol *
531find_pc_psymbol (psymtab, pc)
532 struct partial_symtab *psymtab;
533 CORE_ADDR pc;
534{
535 return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc));
536}
537\f
538/* Debug symbols usually don't have section information. We need to dig that
539 out of the minimal symbols and stash that in the debug symbol. */
540
541static void
542fixup_section (ginfo, objfile)
543 struct general_symbol_info *ginfo;
544 struct objfile *objfile;
545{
546 struct minimal_symbol *msym;
547 msym = lookup_minimal_symbol (ginfo->name, NULL, objfile);
548
549 if (msym)
550 ginfo->bfd_section = SYMBOL_BFD_SECTION (msym);
551}
552
553struct symbol *
554fixup_symbol_section (sym, objfile)
555 struct symbol *sym;
556 struct objfile *objfile;
557{
558 if (!sym)
559 return NULL;
560
561 if (SYMBOL_BFD_SECTION (sym))
562 return sym;
563
564 fixup_section (&sym->ginfo, objfile);
565
566 return sym;
567}
568
569static struct partial_symbol *
570fixup_psymbol_section (psym, objfile)
571 struct partial_symbol *psym;
572 struct objfile *objfile;
573{
574 if (!psym)
575 return NULL;
576
577 if (SYMBOL_BFD_SECTION (psym))
578 return psym;
579
580 fixup_section (&psym->ginfo, objfile);
581
582 return psym;
583}
584
585/* Find the definition for a specified symbol name NAME
586 in namespace NAMESPACE, visible from lexical block BLOCK.
587 Returns the struct symbol pointer, or zero if no symbol is found.
588 If SYMTAB is non-NULL, store the symbol table in which the
589 symbol was found there, or NULL if not found.
590 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
591 NAME is a field of the current implied argument `this'. If so set
592 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
593 BLOCK_FOUND is set to the block in which NAME is found (in the case of
594 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
595
596/* This function has a bunch of loops in it and it would seem to be
597 attractive to put in some QUIT's (though I'm not really sure
598 whether it can run long enough to be really important). But there
599 are a few calls for which it would appear to be bad news to quit
600 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
601 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
602 code below which can error(), but that probably doesn't affect
603 these calls since they are looking for a known variable and thus
604 can probably assume it will never hit the C++ code). */
605
606struct symbol *
607lookup_symbol (name, block, namespace, is_a_field_of_this, symtab)
608 const char *name;
609 register const struct block *block;
610 const namespace_enum namespace;
611 int *is_a_field_of_this;
612 struct symtab **symtab;
613{
614 register struct symbol *sym;
615 register struct symtab *s = NULL;
616 register struct partial_symtab *ps;
617 struct blockvector *bv;
618 register struct objfile *objfile = NULL;
619 register struct block *b;
620 register struct minimal_symbol *msymbol;
621
622 /* Search specified block and its superiors. */
623
624 while (block != 0)
625 {
626 sym = lookup_block_symbol (block, name, namespace);
c5aa993b 627 if (sym)
c906108c
SS
628 {
629 block_found = block;
630 if (symtab != NULL)
631 {
632 /* Search the list of symtabs for one which contains the
c5aa993b 633 address of the start of this block. */
c906108c 634 ALL_SYMTABS (objfile, s)
c5aa993b
JM
635 {
636 bv = BLOCKVECTOR (s);
637 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
638 if (BLOCK_START (b) <= BLOCK_START (block)
639 && BLOCK_END (b) > BLOCK_START (block))
640 goto found;
641 }
642 found:
c906108c
SS
643 *symtab = s;
644 }
645
646 return fixup_symbol_section (sym, objfile);
647 }
648 block = BLOCK_SUPERBLOCK (block);
649 }
650
651 /* FIXME: this code is never executed--block is always NULL at this
652 point. What is it trying to do, anyway? We already should have
653 checked the STATIC_BLOCK above (it is the superblock of top-level
654 blocks). Why is VAR_NAMESPACE special-cased? */
655 /* Don't need to mess with the psymtabs; if we have a block,
656 that file is read in. If we don't, then we deal later with
657 all the psymtab stuff that needs checking. */
658 /* Note (RT): The following never-executed code looks unnecessary to me also.
659 * If we change the code to use the original (passed-in)
660 * value of 'block', we could cause it to execute, but then what
661 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
662 * 'block' was already searched by the above code. And the STATIC_BLOCK's
663 * of *other* symtabs (those files not containing 'block' lexically)
664 * should not contain 'block' address-wise. So we wouldn't expect this
665 * code to find any 'sym''s that were not found above. I vote for
666 * deleting the following paragraph of code.
667 */
668 if (namespace == VAR_NAMESPACE && block != NULL)
669 {
670 struct block *b;
671 /* Find the right symtab. */
672 ALL_SYMTABS (objfile, s)
c5aa993b
JM
673 {
674 bv = BLOCKVECTOR (s);
675 b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
676 if (BLOCK_START (b) <= BLOCK_START (block)
677 && BLOCK_END (b) > BLOCK_START (block))
678 {
679 sym = lookup_block_symbol (b, name, VAR_NAMESPACE);
680 if (sym)
681 {
682 block_found = b;
683 if (symtab != NULL)
684 *symtab = s;
685 return fixup_symbol_section (sym, objfile);
686 }
687 }
688 }
c906108c
SS
689 }
690
691
692 /* C++: If requested to do so by the caller,
693 check to see if NAME is a field of `this'. */
694 if (is_a_field_of_this)
695 {
696 struct value *v = value_of_this (0);
c5aa993b 697
c906108c
SS
698 *is_a_field_of_this = 0;
699 if (v && check_field (v, name))
700 {
701 *is_a_field_of_this = 1;
702 if (symtab != NULL)
703 *symtab = NULL;
704 return NULL;
705 }
706 }
707
708 /* Now search all global blocks. Do the symtab's first, then
709 check the psymtab's. If a psymtab indicates the existence
710 of the desired name as a global, then do psymtab-to-symtab
711 conversion on the fly and return the found symbol. */
c5aa993b 712
c906108c 713 ALL_SYMTABS (objfile, s)
c5aa993b
JM
714 {
715 bv = BLOCKVECTOR (s);
716 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
717 sym = lookup_block_symbol (block, name, namespace);
718 if (sym)
719 {
720 block_found = block;
721 if (symtab != NULL)
722 *symtab = s;
723 return fixup_symbol_section (sym, objfile);
724 }
725 }
c906108c
SS
726
727#ifndef HPUXHPPA
728
729 /* Check for the possibility of the symbol being a function or
730 a mangled variable that is stored in one of the minimal symbol tables.
731 Eventually, all global symbols might be resolved in this way. */
c5aa993b 732
c906108c
SS
733 if (namespace == VAR_NAMESPACE)
734 {
735 msymbol = lookup_minimal_symbol (name, NULL, NULL);
736 if (msymbol != NULL)
737 {
738 s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol),
c5aa993b 739 SYMBOL_BFD_SECTION (msymbol));
c906108c
SS
740 if (s != NULL)
741 {
742 /* This is a function which has a symtab for its address. */
743 bv = BLOCKVECTOR (s);
744 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
745 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
746 namespace);
c5aa993b
JM
747 /* We kept static functions in minimal symbol table as well as
748 in static scope. We want to find them in the symbol table. */
749 if (!sym)
750 {
c906108c
SS
751 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
752 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
753 namespace);
754 }
755
756 /* sym == 0 if symbol was found in the minimal symbol table
c5aa993b
JM
757 but not in the symtab.
758 Return 0 to use the msymbol definition of "foo_".
c906108c 759
c5aa993b
JM
760 This happens for Fortran "foo_" symbols,
761 which are "foo" in the symtab.
c906108c 762
c5aa993b
JM
763 This can also happen if "asm" is used to make a
764 regular symbol but not a debugging symbol, e.g.
765 asm(".globl _main");
766 asm("_main:");
767 */
c906108c
SS
768
769 if (symtab != NULL)
770 *symtab = s;
771 return fixup_symbol_section (sym, objfile);
772 }
773 else if (MSYMBOL_TYPE (msymbol) != mst_text
774 && MSYMBOL_TYPE (msymbol) != mst_file_text
775 && !STREQ (name, SYMBOL_NAME (msymbol)))
776 {
777 /* This is a mangled variable, look it up by its
c5aa993b
JM
778 mangled name. */
779 return lookup_symbol (SYMBOL_NAME (msymbol), block,
c906108c
SS
780 namespace, is_a_field_of_this, symtab);
781 }
782 /* There are no debug symbols for this file, or we are looking
783 for an unmangled variable.
784 Try to find a matching static symbol below. */
785 }
786 }
c5aa993b 787
c906108c
SS
788#endif
789
790 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
791 {
792 if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace))
793 {
794 s = PSYMTAB_TO_SYMTAB (ps);
795 bv = BLOCKVECTOR (s);
796 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
797 sym = lookup_block_symbol (block, name, namespace);
798 if (!sym)
799 {
800 /* This shouldn't be necessary, but as a last resort
801 * try looking in the statics even though the psymtab
802 * claimed the symbol was global. It's possible that
803 * the psymtab gets it wrong in some cases.
804 */
805 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
806 sym = lookup_block_symbol (block, name, namespace);
807 if (!sym)
808 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
c906108c
SS
809%s may be an inlined function, or may be a template function\n\
810(if a template, try specifying an instantiation: %s<type>).",
c5aa993b
JM
811 name, ps->filename, name, name);
812 }
813 if (symtab != NULL)
814 *symtab = s;
815 return fixup_symbol_section (sym, objfile);
816 }
817 }
c906108c
SS
818
819 /* Now search all static file-level symbols.
820 Not strictly correct, but more useful than an error.
821 Do the symtabs first, then check the psymtabs.
822 If a psymtab indicates the existence
823 of the desired name as a file-level static, then do psymtab-to-symtab
824 conversion on the fly and return the found symbol. */
825
826 ALL_SYMTABS (objfile, s)
c5aa993b
JM
827 {
828 bv = BLOCKVECTOR (s);
829 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
830 sym = lookup_block_symbol (block, name, namespace);
831 if (sym)
832 {
833 block_found = block;
834 if (symtab != NULL)
835 *symtab = s;
836 return fixup_symbol_section (sym, objfile);
837 }
838 }
c906108c
SS
839
840 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
841 {
842 if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace))
843 {
844 s = PSYMTAB_TO_SYMTAB (ps);
845 bv = BLOCKVECTOR (s);
846 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
847 sym = lookup_block_symbol (block, name, namespace);
848 if (!sym)
849 {
850 /* This shouldn't be necessary, but as a last resort
851 * try looking in the globals even though the psymtab
852 * claimed the symbol was static. It's possible that
853 * the psymtab gets it wrong in some cases.
854 */
855 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
856 sym = lookup_block_symbol (block, name, namespace);
857 if (!sym)
858 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
c906108c
SS
859%s may be an inlined function, or may be a template function\n\
860(if a template, try specifying an instantiation: %s<type>).",
c5aa993b
JM
861 name, ps->filename, name, name);
862 }
863 if (symtab != NULL)
864 *symtab = s;
865 return fixup_symbol_section (sym, objfile);
866 }
867 }
c906108c
SS
868
869#ifdef HPUXHPPA
870
871 /* Check for the possibility of the symbol being a function or
872 a global variable that is stored in one of the minimal symbol tables.
873 The "minimal symbol table" is built from linker-supplied info.
874
875 RT: I moved this check to last, after the complete search of
876 the global (p)symtab's and static (p)symtab's. For HP-generated
877 symbol tables, this check was causing a premature exit from
878 lookup_symbol with NULL return, and thus messing up symbol lookups
879 of things like "c::f". It seems to me a check of the minimal
880 symbol table ought to be a last resort in any case. I'm vaguely
881 worried about the comment below which talks about FORTRAN routines "foo_"
882 though... is it saying we need to do the "minsym" check before
883 the static check in this case?
884 */
c5aa993b 885
c906108c
SS
886 if (namespace == VAR_NAMESPACE)
887 {
888 msymbol = lookup_minimal_symbol (name, NULL, NULL);
889 if (msymbol != NULL)
890 {
c5aa993b
JM
891 /* OK, we found a minimal symbol in spite of not
892 * finding any symbol. There are various possible
893 * explanations for this. One possibility is the symbol
894 * exists in code not compiled -g. Another possibility
895 * is that the 'psymtab' isn't doing its job.
896 * A third possibility, related to #2, is that we were confused
897 * by name-mangling. For instance, maybe the psymtab isn't
898 * doing its job because it only know about demangled
899 * names, but we were given a mangled name...
900 */
901
902 /* We first use the address in the msymbol to try to
903 * locate the appropriate symtab. Note that find_pc_symtab()
904 * has a side-effect of doing psymtab-to-symtab expansion,
905 * for the found symtab.
906 */
c906108c
SS
907 s = find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol));
908 if (s != NULL)
909 {
910 bv = BLOCKVECTOR (s);
911 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
912 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
913 namespace);
c5aa993b
JM
914 /* We kept static functions in minimal symbol table as well as
915 in static scope. We want to find them in the symbol table. */
916 if (!sym)
917 {
c906108c
SS
918 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
919 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
920 namespace);
921 }
c5aa993b
JM
922 /* If we found one, return it */
923 if (sym)
924 {
925 if (symtab != NULL)
926 *symtab = s;
927 return sym;
928 }
c906108c
SS
929
930 /* If we get here with sym == 0, the symbol was
c5aa993b
JM
931 found in the minimal symbol table
932 but not in the symtab.
933 Fall through and return 0 to use the msymbol
934 definition of "foo_".
935 (Note that outer code generally follows up a call
936 to this routine with a call to lookup_minimal_symbol(),
937 so a 0 return means we'll just flow into that other routine).
938
939 This happens for Fortran "foo_" symbols,
940 which are "foo" in the symtab.
941
942 This can also happen if "asm" is used to make a
943 regular symbol but not a debugging symbol, e.g.
944 asm(".globl _main");
945 asm("_main:");
946 */
c906108c
SS
947 }
948
c5aa993b
JM
949 /* If the lookup-by-address fails, try repeating the
950 * entire lookup process with the symbol name from
951 * the msymbol (if different from the original symbol name).
952 */
c906108c
SS
953 else if (MSYMBOL_TYPE (msymbol) != mst_text
954 && MSYMBOL_TYPE (msymbol) != mst_file_text
955 && !STREQ (name, SYMBOL_NAME (msymbol)))
956 {
957 return lookup_symbol (SYMBOL_NAME (msymbol), block,
958 namespace, is_a_field_of_this, symtab);
959 }
960 }
961 }
962
963#endif
964
965 if (symtab != NULL)
966 *symtab = NULL;
967 return 0;
968}
969
970/* Look, in partial_symtab PST, for symbol NAME. Check the global
971 symbols if GLOBAL, the static symbols if not */
972
973static struct partial_symbol *
974lookup_partial_symbol (pst, name, global, namespace)
975 struct partial_symtab *pst;
976 const char *name;
977 int global;
978 namespace_enum namespace;
979{
980 struct partial_symbol **start, **psym;
981 struct partial_symbol **top, **bottom, **center;
982 int length = (global ? pst->n_global_syms : pst->n_static_syms);
983 int do_linear_search = 1;
984
985 if (length == 0)
986 {
987 return (NULL);
988 }
c5aa993b 989
c906108c
SS
990 start = (global ?
991 pst->objfile->global_psymbols.list + pst->globals_offset :
c5aa993b 992 pst->objfile->static_psymbols.list + pst->statics_offset);
c906108c 993
c5aa993b 994 if (global) /* This means we can use a binary search. */
c906108c
SS
995 {
996 do_linear_search = 0;
997
998 /* Binary search. This search is guaranteed to end with center
999 pointing at the earliest partial symbol with the correct
c5aa993b
JM
1000 name. At that point *all* partial symbols with that name
1001 will be checked against the correct namespace. */
c906108c
SS
1002
1003 bottom = start;
1004 top = start + length - 1;
1005 while (top > bottom)
1006 {
1007 center = bottom + (top - bottom) / 2;
1008 if (!(center < top))
1009 abort ();
1010 if (!do_linear_search
1011 && (SYMBOL_LANGUAGE (*center) == language_cplus
1012 || SYMBOL_LANGUAGE (*center) == language_java
c5aa993b 1013 ))
c906108c
SS
1014 {
1015 do_linear_search = 1;
1016 }
1017 if (STRCMP (SYMBOL_NAME (*center), name) >= 0)
1018 {
1019 top = center;
1020 }
1021 else
1022 {
1023 bottom = center + 1;
1024 }
1025 }
1026 if (!(top == bottom))
1027 abort ();
1028 while (STREQ (SYMBOL_NAME (*top), name))
1029 {
1030 if (SYMBOL_NAMESPACE (*top) == namespace)
1031 {
1032 return (*top);
1033 }
c5aa993b 1034 top++;
c906108c
SS
1035 }
1036 }
1037
1038 /* Can't use a binary search or else we found during the binary search that
1039 we should also do a linear search. */
1040
1041 if (do_linear_search)
1042 {
1043 for (psym = start; psym < start + length; psym++)
1044 {
1045 if (namespace == SYMBOL_NAMESPACE (*psym))
1046 {
1047 if (SYMBOL_MATCHES_NAME (*psym, name))
1048 {
1049 return (*psym);
1050 }
1051 }
1052 }
1053 }
1054
1055 return (NULL);
1056}
1057
1058/* Look up a type named NAME in the struct_namespace. The type returned
1059 must not be opaque -- i.e., must have at least one field defined
1060
1061 This code was modelled on lookup_symbol -- the parts not relevant to looking
1062 up types were just left out. In particular it's assumed here that types
1063 are available in struct_namespace and only at file-static or global blocks. */
1064
1065
1066struct type *
1067lookup_transparent_type (name)
1068 const char *name;
1069{
1070 register struct symbol *sym;
1071 register struct symtab *s = NULL;
1072 register struct partial_symtab *ps;
1073 struct blockvector *bv;
1074 register struct objfile *objfile;
1075 register struct block *block;
1076 register struct minimal_symbol *msymbol;
1077
1078 /* Now search all the global symbols. Do the symtab's first, then
1079 check the psymtab's. If a psymtab indicates the existence
1080 of the desired name as a global, then do psymtab-to-symtab
1081 conversion on the fly and return the found symbol. */
c5aa993b 1082
c906108c 1083 ALL_SYMTABS (objfile, s)
c5aa993b
JM
1084 {
1085 bv = BLOCKVECTOR (s);
1086 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1087 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1088 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1089 {
1090 return SYMBOL_TYPE (sym);
1091 }
1092 }
c906108c
SS
1093
1094 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
1095 {
1096 if (!ps->readin && lookup_partial_symbol (ps, name, 1, STRUCT_NAMESPACE))
1097 {
1098 s = PSYMTAB_TO_SYMTAB (ps);
1099 bv = BLOCKVECTOR (s);
1100 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1101 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1102 if (!sym)
1103 {
1104 /* This shouldn't be necessary, but as a last resort
1105 * try looking in the statics even though the psymtab
1106 * claimed the symbol was global. It's possible that
1107 * the psymtab gets it wrong in some cases.
1108 */
1109 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1110 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1111 if (!sym)
1112 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
c906108c
SS
1113%s may be an inlined function, or may be a template function\n\
1114(if a template, try specifying an instantiation: %s<type>).",
c5aa993b
JM
1115 name, ps->filename, name, name);
1116 }
1117 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1118 return SYMBOL_TYPE (sym);
1119 }
1120 }
c906108c
SS
1121
1122 /* Now search the static file-level symbols.
1123 Not strictly correct, but more useful than an error.
1124 Do the symtab's first, then
1125 check the psymtab's. If a psymtab indicates the existence
1126 of the desired name as a file-level static, then do psymtab-to-symtab
1127 conversion on the fly and return the found symbol.
1128 */
1129
1130 ALL_SYMTABS (objfile, s)
c5aa993b
JM
1131 {
1132 bv = BLOCKVECTOR (s);
1133 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1134 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1135 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1136 {
1137 return SYMBOL_TYPE (sym);
1138 }
1139 }
c906108c
SS
1140
1141 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
1142 {
1143 if (!ps->readin && lookup_partial_symbol (ps, name, 0, STRUCT_NAMESPACE))
1144 {
1145 s = PSYMTAB_TO_SYMTAB (ps);
1146 bv = BLOCKVECTOR (s);
1147 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1148 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1149 if (!sym)
1150 {
1151 /* This shouldn't be necessary, but as a last resort
1152 * try looking in the globals even though the psymtab
1153 * claimed the symbol was static. It's possible that
1154 * the psymtab gets it wrong in some cases.
1155 */
1156 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1157 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1158 if (!sym)
1159 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
c906108c
SS
1160%s may be an inlined function, or may be a template function\n\
1161(if a template, try specifying an instantiation: %s<type>).",
c5aa993b
JM
1162 name, ps->filename, name, name);
1163 }
1164 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1165 return SYMBOL_TYPE (sym);
1166 }
1167 }
c906108c
SS
1168 return (struct type *) 0;
1169}
1170
1171
1172/* Find the psymtab containing main(). */
1173/* FIXME: What about languages without main() or specially linked
1174 executables that have no main() ? */
1175
1176struct partial_symtab *
1177find_main_psymtab ()
1178{
1179 register struct partial_symtab *pst;
1180 register struct objfile *objfile;
1181
1182 ALL_PSYMTABS (objfile, pst)
c5aa993b
JM
1183 {
1184 if (lookup_partial_symbol (pst, "main", 1, VAR_NAMESPACE))
1185 {
1186 return (pst);
1187 }
1188 }
c906108c
SS
1189 return (NULL);
1190}
1191
1192/* Search BLOCK for symbol NAME in NAMESPACE.
1193
1194 Note that if NAME is the demangled form of a C++ symbol, we will fail
1195 to find a match during the binary search of the non-encoded names, but
1196 for now we don't worry about the slight inefficiency of looking for
1197 a match we'll never find, since it will go pretty quick. Once the
1198 binary search terminates, we drop through and do a straight linear
1199 search on the symbols. Each symbol which is marked as being a C++
1200 symbol (language_cplus set) has both the encoded and non-encoded names
1201 tested for a match. */
1202
1203struct symbol *
1204lookup_block_symbol (block, name, namespace)
1205 register const struct block *block;
1206 const char *name;
1207 const namespace_enum namespace;
1208{
1209 register int bot, top, inc;
1210 register struct symbol *sym;
1211 register struct symbol *sym_found = NULL;
1212 register int do_linear_search = 1;
1213
1214 /* If the blocks's symbols were sorted, start with a binary search. */
1215
1216 if (BLOCK_SHOULD_SORT (block))
1217 {
1218 /* Reset the linear search flag so if the binary search fails, we
c5aa993b
JM
1219 won't do the linear search once unless we find some reason to
1220 do so, such as finding a C++ symbol during the binary search.
1221 Note that for C++ modules, ALL the symbols in a block should
1222 end up marked as C++ symbols. */
c906108c
SS
1223
1224 do_linear_search = 0;
1225 top = BLOCK_NSYMS (block);
1226 bot = 0;
1227
1228 /* Advance BOT to not far before the first symbol whose name is NAME. */
1229
1230 while (1)
1231 {
1232 inc = (top - bot + 1);
1233 /* No need to keep binary searching for the last few bits worth. */
1234 if (inc < 4)
1235 {
1236 break;
1237 }
1238 inc = (inc >> 1) + bot;
1239 sym = BLOCK_SYM (block, inc);
1240 if (!do_linear_search
1241 && (SYMBOL_LANGUAGE (sym) == language_cplus
1242 || SYMBOL_LANGUAGE (sym) == language_java
c5aa993b 1243 ))
c906108c
SS
1244 {
1245 do_linear_search = 1;
1246 }
1247 if (SYMBOL_NAME (sym)[0] < name[0])
1248 {
1249 bot = inc;
1250 }
1251 else if (SYMBOL_NAME (sym)[0] > name[0])
1252 {
1253 top = inc;
1254 }
1255 else if (STRCMP (SYMBOL_NAME (sym), name) < 0)
1256 {
1257 bot = inc;
1258 }
1259 else
1260 {
1261 top = inc;
1262 }
1263 }
1264
1265 /* Now scan forward until we run out of symbols, find one whose
c5aa993b
JM
1266 name is greater than NAME, or find one we want. If there is
1267 more than one symbol with the right name and namespace, we
1268 return the first one; I believe it is now impossible for us
1269 to encounter two symbols with the same name and namespace
1270 here, because blocks containing argument symbols are no
1271 longer sorted. */
c906108c
SS
1272
1273 top = BLOCK_NSYMS (block);
1274 while (bot < top)
1275 {
1276 sym = BLOCK_SYM (block, bot);
1277 inc = SYMBOL_NAME (sym)[0] - name[0];
1278 if (inc == 0)
1279 {
1280 inc = STRCMP (SYMBOL_NAME (sym), name);
1281 }
1282 if (inc == 0 && SYMBOL_NAMESPACE (sym) == namespace)
1283 {
1284 return (sym);
1285 }
1286 if (inc > 0)
1287 {
1288 break;
1289 }
1290 bot++;
1291 }
1292 }
1293
1294 /* Here if block isn't sorted, or we fail to find a match during the
1295 binary search above. If during the binary search above, we find a
1296 symbol which is a C++ symbol, then we have re-enabled the linear
1297 search flag which was reset when starting the binary search.
1298
1299 This loop is equivalent to the loop above, but hacked greatly for speed.
1300
1301 Note that parameter symbols do not always show up last in the
1302 list; this loop makes sure to take anything else other than
1303 parameter symbols first; it only uses parameter symbols as a
1304 last resort. Note that this only takes up extra computation
1305 time on a match. */
1306
1307 if (do_linear_search)
1308 {
1309 top = BLOCK_NSYMS (block);
1310 bot = 0;
1311 while (bot < top)
1312 {
1313 sym = BLOCK_SYM (block, bot);
1314 if (SYMBOL_NAMESPACE (sym) == namespace &&
1315 SYMBOL_MATCHES_NAME (sym, name))
1316 {
1317 /* If SYM has aliases, then use any alias that is active
c5aa993b
JM
1318 at the current PC. If no alias is active at the current
1319 PC, then use the main symbol.
c906108c 1320
c5aa993b
JM
1321 ?!? Is checking the current pc correct? Is this routine
1322 ever called to look up a symbol from another context? */
1323 if (SYMBOL_ALIASES (sym))
1324 sym = find_active_alias (sym, read_pc ());
c906108c
SS
1325
1326 sym_found = sym;
1327 if (SYMBOL_CLASS (sym) != LOC_ARG &&
1328 SYMBOL_CLASS (sym) != LOC_LOCAL_ARG &&
1329 SYMBOL_CLASS (sym) != LOC_REF_ARG &&
1330 SYMBOL_CLASS (sym) != LOC_REGPARM &&
1331 SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR &&
1332 SYMBOL_CLASS (sym) != LOC_BASEREG_ARG)
1333 {
1334 break;
1335 }
1336 }
1337 bot++;
1338 }
1339 }
1340 return (sym_found); /* Will be NULL if not found. */
1341}
1342
1343/* Given a main symbol SYM and ADDR, search through the alias
1344 list to determine if an alias is active at ADDR and return
1345 the active alias.
1346
1347 If no alias is active, then return SYM. */
1348
1349static struct symbol *
1350find_active_alias (sym, addr)
c5aa993b
JM
1351 struct symbol *sym;
1352 CORE_ADDR addr;
c906108c
SS
1353{
1354 struct range_list *r;
1355 struct alias_list *aliases;
1356
1357 /* If we have aliases, check them first. */
1358 aliases = SYMBOL_ALIASES (sym);
1359
1360 while (aliases)
1361 {
1362 if (!SYMBOL_RANGES (aliases->sym))
c5aa993b 1363 return aliases->sym;
c906108c
SS
1364 for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next)
1365 {
1366 if (r->start <= addr && r->end > addr)
1367 return aliases->sym;
1368 }
1369 aliases = aliases->next;
1370 }
1371
1372 /* Nothing found, return the main symbol. */
1373 return sym;
1374}
c906108c 1375\f
c5aa993b 1376
c906108c
SS
1377/* Return the symbol for the function which contains a specified
1378 lexical block, described by a struct block BL. */
1379
1380struct symbol *
1381block_function (bl)
1382 struct block *bl;
1383{
1384 while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0)
1385 bl = BLOCK_SUPERBLOCK (bl);
1386
1387 return BLOCK_FUNCTION (bl);
1388}
1389
1390/* Find the symtab associated with PC and SECTION. Look through the
1391 psymtabs and read in another symtab if necessary. */
1392
1393struct symtab *
1394find_pc_sect_symtab (pc, section)
1395 CORE_ADDR pc;
1396 asection *section;
1397{
1398 register struct block *b;
1399 struct blockvector *bv;
1400 register struct symtab *s = NULL;
1401 register struct symtab *best_s = NULL;
1402 register struct partial_symtab *ps;
1403 register struct objfile *objfile;
1404 CORE_ADDR distance = 0;
1405
1406 /* Search all symtabs for the one whose file contains our address, and which
1407 is the smallest of all the ones containing the address. This is designed
1408 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1409 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1410 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1411
1412 This happens for native ecoff format, where code from included files
1413 gets its own symtab. The symtab for the included file should have
1414 been read in already via the dependency mechanism.
1415 It might be swifter to create several symtabs with the same name
1416 like xcoff does (I'm not sure).
1417
1418 It also happens for objfiles that have their functions reordered.
1419 For these, the symtab we are looking for is not necessarily read in. */
1420
1421 ALL_SYMTABS (objfile, s)
c5aa993b
JM
1422 {
1423 bv = BLOCKVECTOR (s);
1424 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
c906108c 1425
c5aa993b 1426 if (BLOCK_START (b) <= pc
c906108c 1427#if defined(HPUXHPPA)
c5aa993b 1428 && BLOCK_END (b) >= pc
c906108c 1429#else
c5aa993b 1430 && BLOCK_END (b) > pc
c906108c 1431#endif
c5aa993b
JM
1432 && (distance == 0
1433 || BLOCK_END (b) - BLOCK_START (b) < distance))
1434 {
1435 /* For an objfile that has its functions reordered,
1436 find_pc_psymtab will find the proper partial symbol table
1437 and we simply return its corresponding symtab. */
1438 /* In order to better support objfiles that contain both
1439 stabs and coff debugging info, we continue on if a psymtab
1440 can't be found. */
1441 if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs)
1442 {
1443 ps = find_pc_sect_psymtab (pc, section);
1444 if (ps)
1445 return PSYMTAB_TO_SYMTAB (ps);
1446 }
1447 if (section != 0)
1448 {
1449 int i;
c906108c 1450
c5aa993b
JM
1451 for (i = 0; i < b->nsyms; i++)
1452 {
1453 fixup_symbol_section (b->sym[i], objfile);
1454 if (section == SYMBOL_BFD_SECTION (b->sym[i]))
1455 break;
1456 }
1457 if (i >= b->nsyms)
1458 continue; /* no symbol in this symtab matches section */
1459 }
1460 distance = BLOCK_END (b) - BLOCK_START (b);
1461 best_s = s;
1462 }
1463 }
c906108c
SS
1464
1465 if (best_s != NULL)
c5aa993b 1466 return (best_s);
c906108c
SS
1467
1468 s = NULL;
1469 ps = find_pc_sect_psymtab (pc, section);
1470 if (ps)
1471 {
1472 if (ps->readin)
1473 /* Might want to error() here (in case symtab is corrupt and
1474 will cause a core dump), but maybe we can successfully
1475 continue, so let's not. */
1476 /* FIXME-32x64: assumes pc fits in a long */
1477 warning ("\
1478(Internal error: pc 0x%lx in read in psymtab, but not in symtab.)\n",
c5aa993b 1479 (unsigned long) pc);
c906108c
SS
1480 s = PSYMTAB_TO_SYMTAB (ps);
1481 }
1482 return (s);
1483}
1484
1485/* Find the symtab associated with PC. Look through the psymtabs and
1486 read in another symtab if necessary. Backward compatibility, no section */
1487
1488struct symtab *
1489find_pc_symtab (pc)
1490 CORE_ADDR pc;
1491{
1492 return find_pc_sect_symtab (pc, find_pc_mapped_section (pc));
1493}
c906108c 1494\f
c5aa993b 1495
c906108c
SS
1496#if 0
1497
1498/* Find the closest symbol value (of any sort -- function or variable)
1499 for a given address value. Slow but complete. (currently unused,
1500 mainly because it is too slow. We could fix it if each symtab and
1501 psymtab had contained in it the addresses ranges of each of its
1502 sections, which also would be required to make things like "info
1503 line *0x2345" cause psymtabs to be converted to symtabs). */
1504
1505struct symbol *
1506find_addr_symbol (addr, symtabp, symaddrp)
1507 CORE_ADDR addr;
1508 struct symtab **symtabp;
1509 CORE_ADDR *symaddrp;
1510{
1511 struct symtab *symtab, *best_symtab;
1512 struct objfile *objfile;
1513 register int bot, top;
1514 register struct symbol *sym;
1515 register CORE_ADDR sym_addr;
1516 struct block *block;
1517 int blocknum;
1518
1519 /* Info on best symbol seen so far */
1520
1521 register CORE_ADDR best_sym_addr = 0;
1522 struct symbol *best_sym = 0;
1523
1524 /* FIXME -- we should pull in all the psymtabs, too! */
1525 ALL_SYMTABS (objfile, symtab)
c5aa993b
JM
1526 {
1527 /* Search the global and static blocks in this symtab for
1528 the closest symbol-address to the desired address. */
c906108c 1529
c5aa993b
JM
1530 for (blocknum = GLOBAL_BLOCK; blocknum <= STATIC_BLOCK; blocknum++)
1531 {
1532 QUIT;
1533 block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), blocknum);
1534 top = BLOCK_NSYMS (block);
1535 for (bot = 0; bot < top; bot++)
1536 {
1537 sym = BLOCK_SYM (block, bot);
1538 switch (SYMBOL_CLASS (sym))
1539 {
1540 case LOC_STATIC:
1541 case LOC_LABEL:
1542 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1543 break;
1544
1545 case LOC_INDIRECT:
1546 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1547 /* An indirect symbol really lives at *sym_addr,
1548 * so an indirection needs to be done.
1549 * However, I am leaving this commented out because it's
1550 * expensive, and it's possible that symbolization
1551 * could be done without an active process (in
1552 * case this read_memory will fail). RT
1553 sym_addr = read_memory_unsigned_integer
1554 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1555 */
1556 break;
c906108c 1557
c5aa993b
JM
1558 case LOC_BLOCK:
1559 sym_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
1560 break;
c906108c 1561
c5aa993b
JM
1562 default:
1563 continue;
1564 }
c906108c 1565
c5aa993b
JM
1566 if (sym_addr <= addr)
1567 if (sym_addr > best_sym_addr)
1568 {
1569 /* Quit if we found an exact match. */
1570 best_sym = sym;
1571 best_sym_addr = sym_addr;
1572 best_symtab = symtab;
1573 if (sym_addr == addr)
1574 goto done;
1575 }
1576 }
1577 }
1578 }
c906108c 1579
c5aa993b 1580done:
c906108c
SS
1581 if (symtabp)
1582 *symtabp = best_symtab;
1583 if (symaddrp)
1584 *symaddrp = best_sym_addr;
1585 return best_sym;
1586}
1587#endif /* 0 */
1588
1589/* Find the source file and line number for a given PC value and section.
1590 Return a structure containing a symtab pointer, a line number,
1591 and a pc range for the entire source line.
1592 The value's .pc field is NOT the specified pc.
1593 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1594 use the line that ends there. Otherwise, in that case, the line
1595 that begins there is used. */
1596
1597/* The big complication here is that a line may start in one file, and end just
1598 before the start of another file. This usually occurs when you #include
1599 code in the middle of a subroutine. To properly find the end of a line's PC
1600 range, we must search all symtabs associated with this compilation unit, and
1601 find the one whose first PC is closer than that of the next line in this
1602 symtab. */
1603
1604/* If it's worth the effort, we could be using a binary search. */
1605
1606struct symtab_and_line
1607find_pc_sect_line (pc, section, notcurrent)
1608 CORE_ADDR pc;
1609 struct sec *section;
1610 int notcurrent;
1611{
1612 struct symtab *s;
1613 register struct linetable *l;
1614 register int len;
1615 register int i;
1616 register struct linetable_entry *item;
1617 struct symtab_and_line val;
1618 struct blockvector *bv;
1619 struct minimal_symbol *msymbol;
1620 struct minimal_symbol *mfunsym;
1621
1622 /* Info on best line seen so far, and where it starts, and its file. */
1623
1624 struct linetable_entry *best = NULL;
1625 CORE_ADDR best_end = 0;
1626 struct symtab *best_symtab = 0;
1627
1628 /* Store here the first line number
1629 of a file which contains the line at the smallest pc after PC.
1630 If we don't find a line whose range contains PC,
1631 we will use a line one less than this,
1632 with a range from the start of that file to the first line's pc. */
1633 struct linetable_entry *alt = NULL;
1634 struct symtab *alt_symtab = 0;
1635
1636 /* Info on best line seen in this file. */
1637
1638 struct linetable_entry *prev;
1639
1640 /* If this pc is not from the current frame,
1641 it is the address of the end of a call instruction.
1642 Quite likely that is the start of the following statement.
1643 But what we want is the statement containing the instruction.
1644 Fudge the pc to make sure we get that. */
1645
c5aa993b 1646 INIT_SAL (&val); /* initialize to zeroes */
c906108c
SS
1647
1648 if (notcurrent)
1649 pc -= 1;
1650
c5aa993b 1651 /* elz: added this because this function returned the wrong
c906108c
SS
1652 information if the pc belongs to a stub (import/export)
1653 to call a shlib function. This stub would be anywhere between
1654 two functions in the target, and the line info was erroneously
1655 taken to be the one of the line before the pc.
c5aa993b 1656 */
c906108c 1657 /* RT: Further explanation:
c5aa993b 1658
c906108c
SS
1659 * We have stubs (trampolines) inserted between procedures.
1660 *
1661 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1662 * exists in the main image.
1663 *
1664 * In the minimal symbol table, we have a bunch of symbols
1665 * sorted by start address. The stubs are marked as "trampoline",
1666 * the others appear as text. E.g.:
1667 *
1668 * Minimal symbol table for main image
1669 * main: code for main (text symbol)
1670 * shr1: stub (trampoline symbol)
1671 * foo: code for foo (text symbol)
1672 * ...
1673 * Minimal symbol table for "shr1" image:
1674 * ...
1675 * shr1: code for shr1 (text symbol)
1676 * ...
1677 *
1678 * So the code below is trying to detect if we are in the stub
1679 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1680 * and if found, do the symbolization from the real-code address
1681 * rather than the stub address.
1682 *
1683 * Assumptions being made about the minimal symbol table:
1684 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1685 * if we're really in the trampoline. If we're beyond it (say
1686 * we're in "foo" in the above example), it'll have a closer
1687 * symbol (the "foo" text symbol for example) and will not
1688 * return the trampoline.
1689 * 2. lookup_minimal_symbol_text() will find a real text symbol
1690 * corresponding to the trampoline, and whose address will
1691 * be different than the trampoline address. I put in a sanity
1692 * check for the address being the same, to avoid an
1693 * infinite recursion.
1694 */
c5aa993b
JM
1695 msymbol = lookup_minimal_symbol_by_pc (pc);
1696 if (msymbol != NULL)
c906108c 1697 if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline)
c5aa993b
JM
1698 {
1699 mfunsym = lookup_minimal_symbol_text (SYMBOL_NAME (msymbol), NULL, NULL);
1700 if (mfunsym == NULL)
1701 /* I eliminated this warning since it is coming out
1702 * in the following situation:
1703 * gdb shmain // test program with shared libraries
1704 * (gdb) break shr1 // function in shared lib
1705 * Warning: In stub for ...
1706 * In the above situation, the shared lib is not loaded yet,
1707 * so of course we can't find the real func/line info,
1708 * but the "break" still works, and the warning is annoying.
1709 * So I commented out the warning. RT */
1710 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1711 /* fall through */
1712 else if (SYMBOL_VALUE (mfunsym) == SYMBOL_VALUE (msymbol))
1713 /* Avoid infinite recursion */
1714 /* See above comment about why warning is commented out */
1715 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1716 /* fall through */
1717 else
1718 return find_pc_line (SYMBOL_VALUE (mfunsym), 0);
1719 }
c906108c
SS
1720
1721
1722 s = find_pc_sect_symtab (pc, section);
1723 if (!s)
1724 {
1725 /* if no symbol information, return previous pc */
1726 if (notcurrent)
1727 pc++;
1728 val.pc = pc;
1729 return val;
1730 }
1731
1732 bv = BLOCKVECTOR (s);
1733
1734 /* Look at all the symtabs that share this blockvector.
1735 They all have the same apriori range, that we found was right;
1736 but they have different line tables. */
1737
1738 for (; s && BLOCKVECTOR (s) == bv; s = s->next)
1739 {
1740 /* Find the best line in this symtab. */
1741 l = LINETABLE (s);
1742 if (!l)
c5aa993b 1743 continue;
c906108c
SS
1744 len = l->nitems;
1745 if (len <= 0)
1746 {
1747 /* I think len can be zero if the symtab lacks line numbers
1748 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1749 I'm not sure which, and maybe it depends on the symbol
1750 reader). */
1751 continue;
1752 }
1753
1754 prev = NULL;
1755 item = l->item; /* Get first line info */
1756
1757 /* Is this file's first line closer than the first lines of other files?
c5aa993b 1758 If so, record this file, and its first line, as best alternate. */
c906108c
SS
1759 if (item->pc > pc && (!alt || item->pc < alt->pc))
1760 {
1761 alt = item;
1762 alt_symtab = s;
1763 }
1764
1765 for (i = 0; i < len; i++, item++)
1766 {
1767 /* Leave prev pointing to the linetable entry for the last line
1768 that started at or before PC. */
1769 if (item->pc > pc)
1770 break;
1771
1772 prev = item;
1773 }
1774
1775 /* At this point, prev points at the line whose start addr is <= pc, and
c5aa993b
JM
1776 item points at the next line. If we ran off the end of the linetable
1777 (pc >= start of the last line), then prev == item. If pc < start of
1778 the first line, prev will not be set. */
c906108c
SS
1779
1780 /* Is this file's best line closer than the best in the other files?
c5aa993b 1781 If so, record this file, and its best line, as best so far. */
c906108c
SS
1782
1783 if (prev && (!best || prev->pc > best->pc))
1784 {
1785 best = prev;
1786 best_symtab = s;
1787 /* If another line is in the linetable, and its PC is closer
1788 than the best_end we currently have, take it as best_end. */
1789 if (i < len && (best_end == 0 || best_end > item->pc))
1790 best_end = item->pc;
1791 }
1792 }
1793
1794 if (!best_symtab)
1795 {
1796 if (!alt_symtab)
1797 { /* If we didn't find any line # info, just
1798 return zeros. */
1799 val.pc = pc;
1800 }
1801 else
1802 {
1803 val.symtab = alt_symtab;
1804 val.line = alt->line - 1;
1805
1806 /* Don't return line 0, that means that we didn't find the line. */
c5aa993b
JM
1807 if (val.line == 0)
1808 ++val.line;
c906108c
SS
1809
1810 val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1811 val.end = alt->pc;
1812 }
1813 }
1814 else
1815 {
1816 val.symtab = best_symtab;
1817 val.line = best->line;
1818 val.pc = best->pc;
1819 if (best_end && (!alt || best_end < alt->pc))
1820 val.end = best_end;
1821 else if (alt)
1822 val.end = alt->pc;
1823 else
1824 val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1825 }
1826 val.section = section;
1827 return val;
1828}
1829
1830/* Backward compatibility (no section) */
1831
1832struct symtab_and_line
1833find_pc_line (pc, notcurrent)
1834 CORE_ADDR pc;
1835 int notcurrent;
1836{
c5aa993b 1837 asection *section;
c906108c
SS
1838
1839 section = find_pc_overlay (pc);
1840 if (pc_in_unmapped_range (pc, section))
1841 pc = overlay_mapped_address (pc, section);
1842 return find_pc_sect_line (pc, section, notcurrent);
1843}
c906108c 1844\f
c5aa993b
JM
1845
1846static struct symtab *find_line_symtab PARAMS ((struct symtab *, int,
c906108c
SS
1847 int *, int *));
1848
1849/* Find line number LINE in any symtab whose name is the same as
1850 SYMTAB.
1851
1852 If found, return the symtab that contains the linetable in which it was
1853 found, set *INDEX to the index in the linetable of the best entry
1854 found, and set *EXACT_MATCH nonzero if the value returned is an
1855 exact match.
1856
1857 If not found, return NULL. */
1858
c5aa993b 1859static struct symtab *
c906108c
SS
1860find_line_symtab (symtab, line, index, exact_match)
1861 struct symtab *symtab;
1862 int line;
1863 int *index;
1864 int *exact_match;
1865{
1866 int exact;
1867
1868 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1869 so far seen. */
1870
1871 int best_index;
1872 struct linetable *best_linetable;
1873 struct symtab *best_symtab;
1874
1875 /* First try looking it up in the given symtab. */
1876 best_linetable = LINETABLE (symtab);
1877 best_symtab = symtab;
1878 best_index = find_line_common (best_linetable, line, &exact);
1879 if (best_index < 0 || !exact)
1880 {
1881 /* Didn't find an exact match. So we better keep looking for
c5aa993b
JM
1882 another symtab with the same name. In the case of xcoff,
1883 multiple csects for one source file (produced by IBM's FORTRAN
1884 compiler) produce multiple symtabs (this is unavoidable
1885 assuming csects can be at arbitrary places in memory and that
1886 the GLOBAL_BLOCK of a symtab has a begin and end address). */
c906108c
SS
1887
1888 /* BEST is the smallest linenumber > LINE so far seen,
c5aa993b
JM
1889 or 0 if none has been seen so far.
1890 BEST_INDEX and BEST_LINETABLE identify the item for it. */
c906108c
SS
1891 int best;
1892
1893 struct objfile *objfile;
1894 struct symtab *s;
1895
1896 if (best_index >= 0)
1897 best = best_linetable->item[best_index].line;
1898 else
1899 best = 0;
1900
1901 ALL_SYMTABS (objfile, s)
c5aa993b
JM
1902 {
1903 struct linetable *l;
1904 int ind;
c906108c 1905
c5aa993b
JM
1906 if (!STREQ (symtab->filename, s->filename))
1907 continue;
1908 l = LINETABLE (s);
1909 ind = find_line_common (l, line, &exact);
1910 if (ind >= 0)
1911 {
1912 if (exact)
1913 {
1914 best_index = ind;
1915 best_linetable = l;
1916 best_symtab = s;
1917 goto done;
1918 }
1919 if (best == 0 || l->item[ind].line < best)
1920 {
1921 best = l->item[ind].line;
1922 best_index = ind;
1923 best_linetable = l;
1924 best_symtab = s;
1925 }
1926 }
1927 }
c906108c 1928 }
c5aa993b 1929done:
c906108c
SS
1930 if (best_index < 0)
1931 return NULL;
1932
1933 if (index)
1934 *index = best_index;
1935 if (exact_match)
1936 *exact_match = exact;
1937
1938 return best_symtab;
1939}
1940\f
1941/* Set the PC value for a given source file and line number and return true.
1942 Returns zero for invalid line number (and sets the PC to 0).
1943 The source file is specified with a struct symtab. */
1944
1945int
1946find_line_pc (symtab, line, pc)
1947 struct symtab *symtab;
1948 int line;
1949 CORE_ADDR *pc;
1950{
1951 struct linetable *l;
1952 int ind;
1953
1954 *pc = 0;
1955 if (symtab == 0)
1956 return 0;
1957
1958 symtab = find_line_symtab (symtab, line, &ind, NULL);
1959 if (symtab != NULL)
1960 {
1961 l = LINETABLE (symtab);
1962 *pc = l->item[ind].pc;
1963 return 1;
1964 }
1965 else
1966 return 0;
1967}
1968
1969/* Find the range of pc values in a line.
1970 Store the starting pc of the line into *STARTPTR
1971 and the ending pc (start of next line) into *ENDPTR.
1972 Returns 1 to indicate success.
1973 Returns 0 if could not find the specified line. */
1974
1975int
1976find_line_pc_range (sal, startptr, endptr)
1977 struct symtab_and_line sal;
1978 CORE_ADDR *startptr, *endptr;
1979{
1980 CORE_ADDR startaddr;
1981 struct symtab_and_line found_sal;
1982
1983 startaddr = sal.pc;
c5aa993b 1984 if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr))
c906108c
SS
1985 return 0;
1986
1987 /* This whole function is based on address. For example, if line 10 has
1988 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
1989 "info line *0x123" should say the line goes from 0x100 to 0x200
1990 and "info line *0x355" should say the line goes from 0x300 to 0x400.
1991 This also insures that we never give a range like "starts at 0x134
1992 and ends at 0x12c". */
1993
1994 found_sal = find_pc_sect_line (startaddr, sal.section, 0);
1995 if (found_sal.line != sal.line)
1996 {
1997 /* The specified line (sal) has zero bytes. */
1998 *startptr = found_sal.pc;
1999 *endptr = found_sal.pc;
2000 }
2001 else
2002 {
2003 *startptr = found_sal.pc;
2004 *endptr = found_sal.end;
2005 }
2006 return 1;
2007}
2008
2009/* Given a line table and a line number, return the index into the line
2010 table for the pc of the nearest line whose number is >= the specified one.
2011 Return -1 if none is found. The value is >= 0 if it is an index.
2012
2013 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
2014
2015static int
2016find_line_common (l, lineno, exact_match)
2017 register struct linetable *l;
2018 register int lineno;
2019 int *exact_match;
2020{
2021 register int i;
2022 register int len;
2023
2024 /* BEST is the smallest linenumber > LINENO so far seen,
2025 or 0 if none has been seen so far.
2026 BEST_INDEX identifies the item for it. */
2027
2028 int best_index = -1;
2029 int best = 0;
2030
2031 if (lineno <= 0)
2032 return -1;
2033 if (l == 0)
2034 return -1;
2035
2036 len = l->nitems;
2037 for (i = 0; i < len; i++)
2038 {
2039 register struct linetable_entry *item = &(l->item[i]);
2040
2041 if (item->line == lineno)
2042 {
2043 /* Return the first (lowest address) entry which matches. */
2044 *exact_match = 1;
2045 return i;
2046 }
2047
2048 if (item->line > lineno && (best == 0 || item->line < best))
2049 {
2050 best = item->line;
2051 best_index = i;
2052 }
2053 }
2054
2055 /* If we got here, we didn't get an exact match. */
2056
2057 *exact_match = 0;
2058 return best_index;
2059}
2060
2061int
2062find_pc_line_pc_range (pc, startptr, endptr)
2063 CORE_ADDR pc;
2064 CORE_ADDR *startptr, *endptr;
2065{
2066 struct symtab_and_line sal;
2067 sal = find_pc_line (pc, 0);
2068 *startptr = sal.pc;
2069 *endptr = sal.end;
2070 return sal.symtab != 0;
2071}
2072
2073/* Given a function symbol SYM, find the symtab and line for the start
2074 of the function.
2075 If the argument FUNFIRSTLINE is nonzero, we want the first line
2076 of real code inside the function. */
2077
2078static struct symtab_and_line
c5aa993b 2079find_function_start_sal PARAMS ((struct symbol * sym, int));
c906108c
SS
2080
2081static struct symtab_and_line
2082find_function_start_sal (sym, funfirstline)
2083 struct symbol *sym;
2084 int funfirstline;
2085{
2086 CORE_ADDR pc;
2087 struct symtab_and_line sal;
2088
2089 pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
2090 fixup_symbol_section (sym, NULL);
2091 if (funfirstline)
c5aa993b 2092 { /* skip "first line" of function (which is actually its prologue) */
c906108c
SS
2093 asection *section = SYMBOL_BFD_SECTION (sym);
2094 /* If function is in an unmapped overlay, use its unmapped LMA
c5aa993b 2095 address, so that SKIP_PROLOGUE has something unique to work on */
c906108c
SS
2096 if (section_is_overlay (section) &&
2097 !section_is_mapped (section))
2098 pc = overlay_unmapped_address (pc, section);
2099
2100 pc += FUNCTION_START_OFFSET;
b83266a0 2101 pc = SKIP_PROLOGUE (pc);
c906108c
SS
2102
2103 /* For overlays, map pc back into its mapped VMA range */
2104 pc = overlay_mapped_address (pc, section);
2105 }
2106 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2107
2108#ifdef PROLOGUE_FIRSTLINE_OVERLAP
2109 /* Convex: no need to suppress code on first line, if any */
2110 sal.pc = pc;
2111#else
2112 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2113 line is still part of the same function. */
2114 if (sal.pc != pc
2115 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end
2116 && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym)))
2117 {
2118 /* First pc of next line */
2119 pc = sal.end;
2120 /* Recalculate the line number (might not be N+1). */
2121 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2122 }
2123 sal.pc = pc;
2124#endif
2125
2126 return sal;
2127}
2128\f
2129/* If P is of the form "operator[ \t]+..." where `...' is
2130 some legitimate operator text, return a pointer to the
2131 beginning of the substring of the operator text.
2132 Otherwise, return "". */
2133char *
2134operator_chars (p, end)
2135 char *p;
2136 char **end;
2137{
2138 *end = "";
2139 if (strncmp (p, "operator", 8))
2140 return *end;
2141 p += 8;
2142
2143 /* Don't get faked out by `operator' being part of a longer
2144 identifier. */
c5aa993b 2145 if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0')
c906108c
SS
2146 return *end;
2147
2148 /* Allow some whitespace between `operator' and the operator symbol. */
2149 while (*p == ' ' || *p == '\t')
2150 p++;
2151
2152 /* Recognize 'operator TYPENAME'. */
2153
c5aa993b 2154 if (isalpha (*p) || *p == '_' || *p == '$')
c906108c 2155 {
c5aa993b
JM
2156 register char *q = p + 1;
2157 while (isalnum (*q) || *q == '_' || *q == '$')
c906108c
SS
2158 q++;
2159 *end = q;
2160 return p;
2161 }
2162
2163 switch (*p)
2164 {
2165 case '!':
2166 case '=':
2167 case '*':
2168 case '/':
2169 case '%':
2170 case '^':
2171 if (p[1] == '=')
c5aa993b 2172 *end = p + 2;
c906108c 2173 else
c5aa993b 2174 *end = p + 1;
c906108c
SS
2175 return p;
2176 case '<':
2177 case '>':
2178 case '+':
2179 case '-':
2180 case '&':
2181 case '|':
2182 if (p[1] == '=' || p[1] == p[0])
c5aa993b 2183 *end = p + 2;
c906108c 2184 else
c5aa993b 2185 *end = p + 1;
c906108c
SS
2186 return p;
2187 case '~':
2188 case ',':
c5aa993b 2189 *end = p + 1;
c906108c
SS
2190 return p;
2191 case '(':
2192 if (p[1] != ')')
2193 error ("`operator ()' must be specified without whitespace in `()'");
c5aa993b 2194 *end = p + 2;
c906108c
SS
2195 return p;
2196 case '?':
2197 if (p[1] != ':')
2198 error ("`operator ?:' must be specified without whitespace in `?:'");
c5aa993b 2199 *end = p + 2;
c906108c
SS
2200 return p;
2201 case '[':
2202 if (p[1] != ']')
2203 error ("`operator []' must be specified without whitespace in `[]'");
c5aa993b 2204 *end = p + 2;
c906108c
SS
2205 return p;
2206 default:
2207 error ("`operator %s' not supported", p);
2208 break;
2209 }
2210 *end = "";
2211 return *end;
2212}
2213
2214/* Return the number of methods described for TYPE, including the
2215 methods from types it derives from. This can't be done in the symbol
2216 reader because the type of the baseclass might still be stubbed
2217 when the definition of the derived class is parsed. */
2218
c5aa993b 2219static int total_number_of_methods PARAMS ((struct type * type));
c906108c
SS
2220
2221static int
2222total_number_of_methods (type)
2223 struct type *type;
2224{
2225 int n;
2226 int count;
2227
2228 CHECK_TYPEDEF (type);
2229 if (TYPE_CPLUS_SPECIFIC (type) == NULL)
2230 return 0;
2231 count = TYPE_NFN_FIELDS_TOTAL (type);
2232
2233 for (n = 0; n < TYPE_N_BASECLASSES (type); n++)
2234 count += total_number_of_methods (TYPE_BASECLASS (type, n));
2235
2236 return count;
2237}
2238
2239/* Recursive helper function for decode_line_1.
2240 Look for methods named NAME in type T.
2241 Return number of matches.
2242 Put matches in SYM_ARR, which should have been allocated with
2243 a size of total_number_of_methods (T) * sizeof (struct symbol *).
2244 Note that this function is g++ specific. */
2245
2246static int
2247find_methods (t, name, sym_arr)
2248 struct type *t;
2249 char *name;
2250 struct symbol **sym_arr;
2251{
2252 int i1 = 0;
2253 int ibase;
2254 struct symbol *sym_class;
2255 char *class_name = type_name_no_tag (t);
2256
2257 /* Ignore this class if it doesn't have a name. This is ugly, but
2258 unless we figure out how to get the physname without the name of
2259 the class, then the loop can't do any good. */
2260 if (class_name
2261 && (sym_class = lookup_symbol (class_name,
c5aa993b 2262 (struct block *) NULL,
c906108c 2263 STRUCT_NAMESPACE,
c5aa993b
JM
2264 (int *) NULL,
2265 (struct symtab **) NULL)))
c906108c
SS
2266 {
2267 int method_counter;
2268
2269 /* FIXME: Shouldn't this just be CHECK_TYPEDEF (t)? */
2270 t = SYMBOL_TYPE (sym_class);
2271
2272 /* Loop over each method name. At this level, all overloads of a name
c5aa993b
JM
2273 are counted as a single name. There is an inner loop which loops over
2274 each overload. */
c906108c
SS
2275
2276 for (method_counter = TYPE_NFN_FIELDS (t) - 1;
2277 method_counter >= 0;
2278 --method_counter)
2279 {
2280 int field_counter;
2281 char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter);
2282 char dem_opname[64];
2283
c5aa993b 2284 if (strncmp (method_name, "__", 2) == 0 ||
c906108c
SS
2285 strncmp (method_name, "op", 2) == 0 ||
2286 strncmp (method_name, "type", 4) == 0)
c5aa993b 2287 {
c906108c 2288 if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI))
c5aa993b 2289 method_name = dem_opname;
c906108c 2290 else if (cplus_demangle_opname (method_name, dem_opname, 0))
c5aa993b
JM
2291 method_name = dem_opname;
2292 }
c906108c
SS
2293
2294 if (STREQ (name, method_name))
2295 /* Find all the overloaded methods with that name. */
2296 for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1;
2297 field_counter >= 0;
2298 --field_counter)
2299 {
2300 struct fn_field *f;
2301 char *phys_name;
2302
2303 f = TYPE_FN_FIELDLIST1 (t, method_counter);
2304
2305 if (TYPE_FN_FIELD_STUB (f, field_counter))
2306 {
2307 char *tmp_name;
2308
2309 tmp_name = gdb_mangle_name (t,
c5aa993b
JM
2310 method_counter,
2311 field_counter);
c906108c
SS
2312 phys_name = alloca (strlen (tmp_name) + 1);
2313 strcpy (phys_name, tmp_name);
2314 free (tmp_name);
2315 }
2316 else
2317 phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
2318
2319 /* Destructor is handled by caller, dont add it to the list */
2320 if (DESTRUCTOR_PREFIX_P (phys_name))
2321 continue;
2322
2323 sym_arr[i1] = lookup_symbol (phys_name,
2324 NULL, VAR_NAMESPACE,
2325 (int *) NULL,
2326 (struct symtab **) NULL);
2327 if (sym_arr[i1])
2328 i1++;
2329 else
2330 {
2331 /* This error message gets printed, but the method
2332 still seems to be found
2333 fputs_filtered("(Cannot find method ", gdb_stdout);
2334 fprintf_symbol_filtered (gdb_stdout, phys_name,
2335 language_cplus,
2336 DMGL_PARAMS | DMGL_ANSI);
2337 fputs_filtered(" - possibly inlined.)\n", gdb_stdout);
c5aa993b 2338 */
c906108c
SS
2339 }
2340 }
2341 }
2342 }
2343
2344 /* Only search baseclasses if there is no match yet, since names in
2345 derived classes override those in baseclasses.
2346
2347 FIXME: The above is not true; it is only true of member functions
2348 if they have the same number of arguments (??? - section 13.1 of the
2349 ARM says the function members are not in the same scope but doesn't
2350 really spell out the rules in a way I understand. In any case, if
2351 the number of arguments differ this is a case in which we can overload
2352 rather than hiding without any problem, and gcc 2.4.5 does overload
2353 rather than hiding in this case). */
2354
2355 if (i1 == 0)
2356 for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++)
2357 i1 += find_methods (TYPE_BASECLASS (t, ibase), name, sym_arr + i1);
2358
2359 return i1;
2360}
2361
2362/* Helper function for decode_line_1.
2363 Build a canonical line spec in CANONICAL if it is non-NULL and if
2364 the SAL has a symtab.
2365 If SYMNAME is non-NULL the canonical line spec is `filename:symname'.
2366 If SYMNAME is NULL the line number from SAL is used and the canonical
2367 line spec is `filename:linenum'. */
2368
2369static void
2370build_canonical_line_spec (sal, symname, canonical)
2371 struct symtab_and_line *sal;
2372 char *symname;
2373 char ***canonical;
2374{
2375 char **canonical_arr;
2376 char *canonical_name;
2377 char *filename;
2378 struct symtab *s = sal->symtab;
2379
c5aa993b
JM
2380 if (s == (struct symtab *) NULL
2381 || s->filename == (char *) NULL
2382 || canonical == (char ***) NULL)
c906108c 2383 return;
c5aa993b 2384
c906108c
SS
2385 canonical_arr = (char **) xmalloc (sizeof (char *));
2386 *canonical = canonical_arr;
2387
2388 filename = s->filename;
2389 if (symname != NULL)
2390 {
2391 canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2);
2392 sprintf (canonical_name, "%s:%s", filename, symname);
2393 }
2394 else
2395 {
2396 canonical_name = xmalloc (strlen (filename) + 30);
2397 sprintf (canonical_name, "%s:%d", filename, sal->line);
2398 }
2399 canonical_arr[0] = canonical_name;
2400}
2401
2402/* Parse a string that specifies a line number.
2403 Pass the address of a char * variable; that variable will be
2404 advanced over the characters actually parsed.
2405
2406 The string can be:
2407
2408 LINENUM -- that line number in current file. PC returned is 0.
2409 FILE:LINENUM -- that line in that file. PC returned is 0.
2410 FUNCTION -- line number of openbrace of that function.
c5aa993b 2411 PC returned is the start of the function.
c906108c 2412 VARIABLE -- line number of definition of that variable.
c5aa993b 2413 PC returned is 0.
c906108c
SS
2414 FILE:FUNCTION -- likewise, but prefer functions in that file.
2415 *EXPR -- line in which address EXPR appears.
2416
085dd6e6
JM
2417 This may all be followed by an "if EXPR", which we ignore.
2418
c906108c
SS
2419 FUNCTION may be an undebuggable function found in minimal symbol table.
2420
2421 If the argument FUNFIRSTLINE is nonzero, we want the first line
2422 of real code inside a function when a function is specified, and it is
2423 not OK to specify a variable or type to get its line number.
2424
2425 DEFAULT_SYMTAB specifies the file to use if none is specified.
2426 It defaults to current_source_symtab.
2427 DEFAULT_LINE specifies the line number to use for relative
2428 line numbers (that start with signs). Defaults to current_source_line.
2429 If CANONICAL is non-NULL, store an array of strings containing the canonical
2430 line specs there if necessary. Currently overloaded member functions and
2431 line numbers or static functions without a filename yield a canonical
2432 line spec. The array and the line spec strings are allocated on the heap,
2433 it is the callers responsibility to free them.
2434
2435 Note that it is possible to return zero for the symtab
2436 if no file is validly specified. Callers must check that.
2437 Also, the line number returned may be invalid. */
2438
2439/* We allow single quotes in various places. This is a hideous
2440 kludge, which exists because the completer can't yet deal with the
2441 lack of single quotes. FIXME: write a linespec_completer which we
2442 can use as appropriate instead of make_symbol_completion_list. */
2443
2444struct symtabs_and_lines
2445decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical)
2446 char **argptr;
2447 int funfirstline;
2448 struct symtab *default_symtab;
2449 int default_line;
2450 char ***canonical;
2451{
2452 struct symtabs_and_lines values;
2453#ifdef HPPA_COMPILER_BUG
2454 /* FIXME: The native HP 9000/700 compiler has a bug which appears
2455 when optimizing this file with target i960-vxworks. I haven't
2456 been able to construct a simple test case. The problem is that
2457 in the second call to SKIP_PROLOGUE below, the compiler somehow
2458 does not realize that the statement val = find_pc_line (...) will
2459 change the values of the fields of val. It extracts the elements
2460 into registers at the top of the block, and does not update the
2461 registers after the call to find_pc_line. You can check this by
2462 inserting a printf at the end of find_pc_line to show what values
2463 it is returning for val.pc and val.end and another printf after
2464 the call to see what values the function actually got (remember,
2465 this is compiling with cc -O, with this patch removed). You can
2466 also examine the assembly listing: search for the second call to
2467 skip_prologue; the LDO statement before the next call to
2468 find_pc_line loads the address of the structure which
2469 find_pc_line will return; if there is a LDW just before the LDO,
2470 which fetches an element of the structure, then the compiler
2471 still has the bug.
2472
2473 Setting val to volatile avoids the problem. We must undef
2474 volatile, because the HPPA native compiler does not define
2475 __STDC__, although it does understand volatile, and so volatile
2476 will have been defined away in defs.h. */
2477#undef volatile
2478 volatile struct symtab_and_line val;
c5aa993b 2479#define volatile /*nothing */
c906108c
SS
2480#else
2481 struct symtab_and_line val;
2482#endif
2483 register char *p, *p1;
2484 char *q, *pp, *ii, *p2;
2485#if 0
2486 char *q1;
2487#endif
2488 register struct symtab *s;
2489
2490 register struct symbol *sym;
2491 /* The symtab that SYM was found in. */
2492 struct symtab *sym_symtab;
2493
2494 register CORE_ADDR pc;
2495 register struct minimal_symbol *msymbol;
2496 char *copy;
2497 struct symbol *sym_class;
2498 int i1;
2499 int is_quoted;
cce74817 2500 int is_quote_enclosed;
c5aa993b 2501 int has_parens;
c906108c 2502 int has_if = 0;
cce74817 2503 int has_comma = 0;
c906108c
SS
2504 struct symbol **sym_arr;
2505 struct type *t;
2506 char *saved_arg = *argptr;
2507 extern char *gdb_completer_quote_characters;
c5aa993b
JM
2508
2509 INIT_SAL (&val); /* initialize to zeroes */
c906108c
SS
2510
2511 /* Defaults have defaults. */
2512
2513 if (default_symtab == 0)
2514 {
2515 default_symtab = current_source_symtab;
2516 default_line = current_source_line;
2517 }
2518
2519 /* See if arg is *PC */
2520
2521 if (**argptr == '*')
2522 {
2523 (*argptr)++;
2524 pc = parse_and_eval_address_1 (argptr);
2525
2526 values.sals = (struct symtab_and_line *)
2527 xmalloc (sizeof (struct symtab_and_line));
2528
2529 values.nelts = 1;
2530 values.sals[0] = find_pc_line (pc, 0);
2531 values.sals[0].pc = pc;
2532 values.sals[0].section = find_pc_overlay (pc);
2533
2534 return values;
2535 }
2536
2537 /* 'has_if' is for the syntax:
2538 * (gdb) break foo if (a==b)
2539 */
c5aa993b
JM
2540 if ((ii = strstr (*argptr, " if ")) != NULL ||
2541 (ii = strstr (*argptr, "\tif ")) != NULL ||
2542 (ii = strstr (*argptr, " if\t")) != NULL ||
2543 (ii = strstr (*argptr, "\tif\t")) != NULL ||
2544 (ii = strstr (*argptr, " if(")) != NULL ||
2545 (ii = strstr (*argptr, "\tif( ")) != NULL)
c906108c
SS
2546 has_if = 1;
2547 /* Temporarily zap out "if (condition)" to not
2548 * confuse the parenthesis-checking code below.
2549 * This is undone below. Do not change ii!!
2550 */
c5aa993b
JM
2551 if (has_if)
2552 {
2553 *ii = '\0';
2554 }
c906108c
SS
2555
2556 /* Set various flags.
2557 * 'has_parens' is important for overload checking, where
2558 * we allow things like:
2559 * (gdb) break c::f(int)
2560 */
2561
2562 /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
2563
2564 is_quoted = (**argptr
2565 && strchr (gdb_completer_quote_characters, **argptr) != NULL);
2566
2567 has_parens = ((pp = strchr (*argptr, '(')) != NULL
c5aa993b 2568 && (pp = strchr (pp, ')')) != NULL);
c906108c
SS
2569
2570 /* Now that we're safely past the has_parens check,
2571 * put back " if (condition)" so outer layers can see it
2572 */
2573 if (has_if)
2574 *ii = ' ';
2575
cce74817
JM
2576 /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM
2577 and we must isolate the first half. Outer layers will call again later
2578 for the second half */
c5aa993b 2579 if ((ii = strchr (*argptr, ',')) != NULL)
cce74817
JM
2580 has_comma = 1;
2581 /* Temporarily zap out second half to not
2582 * confuse the code below.
2583 * This is undone below. Do not change ii!!
2584 */
c5aa993b
JM
2585 if (has_comma)
2586 {
2587 *ii = '\0';
2588 }
cce74817 2589
c906108c
SS
2590 /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
2591 /* May also be CLASS::MEMBER, or NAMESPACE::NAME */
2592 /* Look for ':', but ignore inside of <> */
2593
2594 s = NULL;
cce74817
JM
2595 p = *argptr;
2596 if (p[0] == '"')
2597 {
2598 is_quote_enclosed = 1;
2599 p++;
2600 }
2601 else
c5aa993b
JM
2602 is_quote_enclosed = 0;
2603 for (; *p; p++)
c906108c 2604 {
c5aa993b 2605 if (p[0] == '<')
c906108c 2606 {
c5aa993b
JM
2607 char *temp_end = find_template_name_end (p);
2608 if (!temp_end)
2609 error ("malformed template specification in command");
2610 p = temp_end;
c906108c 2611 }
cce74817
JM
2612 /* Check for the end of the first half of the linespec. End of line,
2613 a tab, a double colon or the last single colon, or a space. But
2614 if enclosed in double quotes we do not break on enclosed spaces */
2615 if (!*p
c5aa993b
JM
2616 || p[0] == '\t'
2617 || ((p[0] == ':')
2618 && ((p[1] == ':') || (strchr (p + 1, ':') == NULL)))
2619 || ((p[0] == ' ') && !is_quote_enclosed))
2620 break;
2621 if (p[0] == '.' && strchr (p, ':') == NULL) /* Java qualified method. */
c906108c
SS
2622 {
2623 /* Find the *last* '.', since the others are package qualifiers. */
c5aa993b 2624 for (p1 = p; *p1; p1++)
c906108c
SS
2625 {
2626 if (*p1 == '.')
2627 p = p1;
2628 }
2629 break;
2630 }
2631 }
c5aa993b
JM
2632 while (p[0] == ' ' || p[0] == '\t')
2633 p++;
cce74817
JM
2634 /* if the closing double quote was left at the end, remove it */
2635 if (is_quote_enclosed && ((pp = strchr (p, '"')) != NULL))
c5aa993b 2636 if (!*(pp + 1))
cce74817
JM
2637 *pp = '\0';
2638
2639 /* Now that we've safely parsed the first half,
2640 * put back ',' so outer layers can see it
2641 */
2642 if (has_comma)
2643 *ii = ',';
c906108c
SS
2644
2645 if ((p[0] == ':' || p[0] == '.') && !has_parens)
2646 {
2647 /* C++ */
2648 /* ... or Java */
c5aa993b
JM
2649 if (is_quoted)
2650 *argptr = *argptr + 1;
2651 if (p[0] == '.' || p[1] == ':')
c906108c 2652 {
c5aa993b
JM
2653 int ix;
2654 char *saved_arg2 = *argptr;
2655 char *temp_end;
2656 /* First check for "global" namespace specification,
2657 of the form "::foo". If found, skip over the colons
2658 and jump to normal symbol processing */
2659 if ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))
2660 saved_arg2 += 2;
2661
2662 /* We have what looks like a class or namespace
2663 scope specification (A::B), possibly with many
2664 levels of namespaces or classes (A::B::C::D).
2665
2666 Some versions of the HP ANSI C++ compiler (as also possibly
2667 other compilers) generate class/function/member names with
2668 embedded double-colons if they are inside namespaces. To
2669 handle this, we loop a few times, considering larger and
2670 larger prefixes of the string as though they were single
2671 symbols. So, if the initially supplied string is
2672 A::B::C::D::foo, we have to look up "A", then "A::B",
2673 then "A::B::C", then "A::B::C::D", and finally
2674 "A::B::C::D::foo" as single, monolithic symbols, because
2675 A, B, C or D may be namespaces.
2676
2677 Note that namespaces can nest only inside other
2678 namespaces, and not inside classes. So we need only
2679 consider *prefixes* of the string; there is no need to look up
2680 "B::C" separately as a symbol in the previous example. */
2681
2682 p2 = p; /* save for restart */
2683 while (1)
2684 {
2685 /* Extract the class name. */
2686 p1 = p;
2687 while (p != *argptr && p[-1] == ' ')
2688 --p;
2689 copy = (char *) alloca (p - *argptr + 1);
2690 memcpy (copy, *argptr, p - *argptr);
2691 copy[p - *argptr] = 0;
2692
2693 /* Discard the class name from the arg. */
2694 p = p1 + (p1[0] == ':' ? 2 : 1);
2695 while (*p == ' ' || *p == '\t')
2696 p++;
2697 *argptr = p;
2698
2699 sym_class = lookup_symbol (copy, 0, STRUCT_NAMESPACE, 0,
2700 (struct symtab **) NULL);
2701
2702 if (sym_class &&
2703 (t = check_typedef (SYMBOL_TYPE (sym_class)),
2704 (TYPE_CODE (t) == TYPE_CODE_STRUCT
2705 || TYPE_CODE (t) == TYPE_CODE_UNION)))
c906108c 2706 {
c5aa993b
JM
2707 /* Arg token is not digits => try it as a function name
2708 Find the next token(everything up to end or next blank). */
2709 if (**argptr
2710 && strchr (gdb_completer_quote_characters, **argptr) != NULL)
2711 {
2712 p = skip_quoted (*argptr);
2713 *argptr = *argptr + 1;
2714 }
2715 else
2716 {
2717 p = *argptr;
2718 while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':')
2719 p++;
2720 }
2721/*
2722 q = operator_chars (*argptr, &q1);
2723 if (q1 - q)
2724 {
2725 char *opname;
2726 char *tmp = alloca (q1 - q + 1);
2727 memcpy (tmp, q, q1 - q);
2728 tmp[q1 - q] = '\0';
2729 opname = cplus_mangle_opname (tmp, DMGL_ANSI);
2730 if (opname == NULL)
2731 {
2732 error_begin ();
2733 printf_filtered ("no mangling for \"%s\"\n", tmp);
2734 cplusplus_hint (saved_arg);
2735 return_to_top_level (RETURN_ERROR);
2736 }
2737 copy = (char*) alloca (3 + strlen(opname));
2738 sprintf (copy, "__%s", opname);
2739 p = q1;
2740 }
2741 else
2742 */
2743 {
2744 copy = (char *) alloca (p - *argptr + 1);
2745 memcpy (copy, *argptr, p - *argptr);
2746 copy[p - *argptr] = '\0';
2747 if (p != *argptr
2748 && copy[p - *argptr - 1]
2749 && strchr (gdb_completer_quote_characters,
2750 copy[p - *argptr - 1]) != NULL)
2751 copy[p - *argptr - 1] = '\0';
2752 }
2753
2754 /* no line number may be specified */
2755 while (*p == ' ' || *p == '\t')
2756 p++;
2757 *argptr = p;
2758
2759 sym = 0;
2760 i1 = 0; /* counter for the symbol array */
2761 sym_arr = (struct symbol **) alloca (total_number_of_methods (t)
2762 * sizeof (struct symbol *));
2763
2764 if (destructor_name_p (copy, t))
c906108c 2765 {
c5aa993b
JM
2766 /* Destructors are a special case. */
2767 int m_index, f_index;
2768
2769 if (get_destructor_fn_field (t, &m_index, &f_index))
2770 {
2771 struct fn_field *f = TYPE_FN_FIELDLIST1 (t, m_index);
2772
2773 sym_arr[i1] =
2774 lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, f_index),
2775 NULL, VAR_NAMESPACE, (int *) NULL,
2776 (struct symtab **) NULL);
2777 if (sym_arr[i1])
2778 i1++;
2779 }
2780 }
2781 else
2782 i1 = find_methods (t, copy, sym_arr);
2783 if (i1 == 1)
2784 {
2785 /* There is exactly one field with that name. */
2786 sym = sym_arr[0];
2787
2788 if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
2789 {
2790 values.sals = (struct symtab_and_line *)
2791 xmalloc (sizeof (struct symtab_and_line));
2792 values.nelts = 1;
2793 values.sals[0] = find_function_start_sal (sym,
2794 funfirstline);
2795 }
2796 else
2797 {
2798 values.nelts = 0;
2799 }
2800 return values;
2801 }
2802 if (i1 > 0)
2803 {
2804 /* There is more than one field with that name
2805 (overloaded). Ask the user which one to use. */
2806 return decode_line_2 (sym_arr, i1, funfirstline, canonical);
2807 }
2808 else
2809 {
2810 char *tmp;
2811
2812 if (OPNAME_PREFIX_P (copy))
2813 {
2814 tmp = (char *) alloca (strlen (copy + 3) + 9);
2815 strcpy (tmp, "operator ");
2816 strcat (tmp, copy + 3);
2817 }
2818 else
2819 tmp = copy;
c906108c 2820 error_begin ();
c5aa993b
JM
2821 if (tmp[0] == '~')
2822 printf_filtered
2823 ("the class `%s' does not have destructor defined\n",
2824 SYMBOL_SOURCE_NAME (sym_class));
2825 else
2826 printf_filtered
2827 ("the class %s does not have any method named %s\n",
2828 SYMBOL_SOURCE_NAME (sym_class), tmp);
c906108c
SS
2829 cplusplus_hint (saved_arg);
2830 return_to_top_level (RETURN_ERROR);
2831 }
c906108c 2832 }
c5aa993b
JM
2833
2834 /* Move pointer up to next possible class/namespace token */
2835 p = p2 + 1; /* restart with old value +1 */
2836 /* Move pointer ahead to next double-colon */
2837 while (*p && (p[0] != ' ') && (p[0] != '\t') && (p[0] != '\''))
2838 {
2839 if (p[0] == '<')
2840 {
2841 temp_end = find_template_name_end (p);
2842 if (!temp_end)
2843 error ("malformed template specification in command");
2844 p = temp_end;
2845 }
2846 else if ((p[0] == ':') && (p[1] == ':'))
2847 break; /* found double-colon */
2848 else
2849 p++;
2850 }
2851
2852 if (*p != ':')
2853 break; /* out of the while (1) */
2854
2855 p2 = p; /* save restart for next time around */
2856 *argptr = saved_arg2; /* restore argptr */
2857 } /* while (1) */
2858
2859 /* Last chance attempt -- check entire name as a symbol */
2860 /* Use "copy" in preparation for jumping out of this block,
2861 to be consistent with usage following the jump target */
2862 copy = (char *) alloca (p - saved_arg2 + 1);
2863 memcpy (copy, saved_arg2, p - saved_arg2);
2864 /* Note: if is_quoted should be true, we snuff out quote here anyway */
2865 copy[p - saved_arg2] = '\000';
2866 /* Set argptr to skip over the name */
2867 *argptr = (*p == '\'') ? p + 1 : p;
2868 /* Look up entire name */
2869 sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
2870 s = (struct symtab *) 0;
2871 /* Prepare to jump: restore the " if (condition)" so outer layers see it */
2872 /* Symbol was found --> jump to normal symbol processing.
2873 Code following "symbol_found" expects "copy" to have the
2874 symbol name, "sym" to have the symbol pointer, "s" to be
2875 a specified file's symtab, and sym_symtab to be the symbol's
2876 symtab. */
2877 /* By jumping there we avoid falling through the FILE:LINE and
2878 FILE:FUNC processing stuff below */
2879 if (sym)
2880 goto symbol_found;
2881
2882 /* Couldn't find any interpretation as classes/namespaces, so give up */
2883 error_begin ();
2884 /* The quotes are important if copy is empty. */
2885 printf_filtered
2886 ("Can't find member of namespace, class, struct, or union named \"%s\"\n", copy);
2887 cplusplus_hint (saved_arg);
2888 return_to_top_level (RETURN_ERROR);
2889 }
c906108c
SS
2890 /* end of C++ */
2891
2892
2893 /* Extract the file name. */
2894 p1 = p;
c5aa993b
JM
2895 while (p != *argptr && p[-1] == ' ')
2896 --p;
2897 if ((*p == '"') && is_quote_enclosed)
2898 --p;
c906108c 2899 copy = (char *) alloca (p - *argptr + 1);
cce74817 2900 if ((**argptr == '"') && is_quote_enclosed)
c5aa993b
JM
2901 {
2902 memcpy (copy, *argptr + 1, p - *argptr - 1);
2903 /* It may have the ending quote right after the file name */
2904 if (copy[p - *argptr - 2] == '"')
2905 copy[p - *argptr - 2] = 0;
2906 else
2907 copy[p - *argptr - 1] = 0;
2908 }
cce74817 2909 else
c5aa993b
JM
2910 {
2911 memcpy (copy, *argptr, p - *argptr);
2912 copy[p - *argptr] = 0;
2913 }
c906108c
SS
2914
2915 /* Find that file's data. */
2916 s = lookup_symtab (copy);
2917 if (s == 0)
2918 {
2919 if (!have_full_symbols () && !have_partial_symbols ())
2920 error (no_symtab_msg);
2921 error ("No source file named %s.", copy);
2922 }
2923
2924 /* Discard the file name from the arg. */
2925 p = p1 + 1;
c5aa993b
JM
2926 while (*p == ' ' || *p == '\t')
2927 p++;
c906108c
SS
2928 *argptr = p;
2929 }
7a292a7a
SS
2930#if 0
2931 /* No one really seems to know why this was added. It certainly
2932 breaks the command line, though, whenever the passed
2933 name is of the form ClassName::Method. This bit of code
2934 singles out the class name, and if funfirstline is set (for
2935 example, you are setting a breakpoint at this function),
2936 you get an error. This did not occur with earlier
2937 verions, so I am ifdef'ing this out. 3/29/99 */
c5aa993b
JM
2938 else
2939 {
2940 /* Check if what we have till now is a symbol name */
2941
2942 /* We may be looking at a template instantiation such
2943 as "foo<int>". Check here whether we know about it,
2944 instead of falling through to the code below which
2945 handles ordinary function names, because that code
2946 doesn't like seeing '<' and '>' in a name -- the
2947 skip_quoted call doesn't go past them. So see if we
2948 can figure it out right now. */
2949
2950 copy = (char *) alloca (p - *argptr + 1);
2951 memcpy (copy, *argptr, p - *argptr);
2952 copy[p - *argptr] = '\000';
2953 sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
2954 if (sym)
2955 {
2956 /* Yes, we have a symbol; jump to symbol processing */
2957 /* Code after symbol_found expects S, SYM_SYMTAB, SYM,
2958 and COPY to be set correctly */
2959 *argptr = (*p == '\'') ? p + 1 : p;
2960 s = (struct symtab *) 0;
2961 goto symbol_found;
2962 }
2963 /* Otherwise fall out from here and go to file/line spec
2964 processing, etc. */
c906108c 2965 }
7a292a7a 2966#endif
c906108c
SS
2967
2968 /* S is specified file's symtab, or 0 if no file specified.
2969 arg no longer contains the file name. */
2970
2971 /* Check whether arg is all digits (and sign) */
2972
2973 q = *argptr;
c5aa993b
JM
2974 if (*q == '-' || *q == '+')
2975 q++;
c906108c
SS
2976 while (*q >= '0' && *q <= '9')
2977 q++;
2978
2979 if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ','))
2980 {
2981 /* We found a token consisting of all digits -- at least one digit. */
c5aa993b
JM
2982 enum sign
2983 {
2984 none, plus, minus
2985 }
2986 sign = none;
c906108c
SS
2987
2988 /* We might need a canonical line spec if no file was specified. */
2989 int need_canonical = (s == 0) ? 1 : 0;
2990
2991 /* This is where we need to make sure that we have good defaults.
c5aa993b
JM
2992 We must guarantee that this section of code is never executed
2993 when we are called with just a function name, since
2994 select_source_symtab calls us with such an argument */
c906108c
SS
2995
2996 if (s == 0 && default_symtab == 0)
2997 {
2998 select_source_symtab (0);
2999 default_symtab = current_source_symtab;
3000 default_line = current_source_line;
3001 }
3002
3003 if (**argptr == '+')
3004 sign = plus, (*argptr)++;
3005 else if (**argptr == '-')
3006 sign = minus, (*argptr)++;
3007 val.line = atoi (*argptr);
3008 switch (sign)
3009 {
3010 case plus:
3011 if (q == *argptr)
3012 val.line = 5;
3013 if (s == 0)
3014 val.line = default_line + val.line;
3015 break;
3016 case minus:
3017 if (q == *argptr)
3018 val.line = 15;
3019 if (s == 0)
3020 val.line = default_line - val.line;
3021 else
3022 val.line = 1;
3023 break;
3024 case none:
c5aa993b 3025 break; /* No need to adjust val.line. */
c906108c
SS
3026 }
3027
c5aa993b
JM
3028 while (*q == ' ' || *q == '\t')
3029 q++;
c906108c
SS
3030 *argptr = q;
3031 if (s == 0)
3032 s = default_symtab;
3033
3034 /* It is possible that this source file has more than one symtab,
c5aa993b
JM
3035 and that the new line number specification has moved us from the
3036 default (in s) to a new one. */
c906108c
SS
3037 val.symtab = find_line_symtab (s, val.line, NULL, NULL);
3038 if (val.symtab == 0)
3039 val.symtab = s;
c5aa993b 3040
c906108c
SS
3041 val.pc = 0;
3042 values.sals = (struct symtab_and_line *)
3043 xmalloc (sizeof (struct symtab_and_line));
3044 values.sals[0] = val;
3045 values.nelts = 1;
3046 if (need_canonical)
3047 build_canonical_line_spec (values.sals, NULL, canonical);
3048 return values;
3049 }
3050
3051 /* Arg token is not digits => try it as a variable name
3052 Find the next token (everything up to end or next whitespace). */
3053
3054 if (**argptr == '$') /* May be a convenience variable */
c5aa993b 3055 p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); /* One or two $ chars possible */
c906108c
SS
3056 else if (is_quoted)
3057 {
3058 p = skip_quoted (*argptr);
3059 if (p[-1] != '\'')
c5aa993b 3060 error ("Unmatched single quote.");
c906108c
SS
3061 }
3062 else if (has_parens)
3063 {
c5aa993b 3064 p = pp + 1;
c906108c 3065 }
c5aa993b 3066 else
c906108c 3067 {
c5aa993b 3068 p = skip_quoted (*argptr);
c906108c
SS
3069 }
3070
3071 copy = (char *) alloca (p - *argptr + 1);
3072 memcpy (copy, *argptr, p - *argptr);
3073 copy[p - *argptr] = '\0';
3074 if (p != *argptr
3075 && copy[0]
c5aa993b 3076 && copy[0] == copy[p - *argptr - 1]
c906108c
SS
3077 && strchr (gdb_completer_quote_characters, copy[0]) != NULL)
3078 {
c5aa993b 3079 copy[p - *argptr - 1] = '\0';
c906108c
SS
3080 copy++;
3081 }
c5aa993b
JM
3082 while (*p == ' ' || *p == '\t')
3083 p++;
c906108c
SS
3084 *argptr = p;
3085
3086 /* If it starts with $: may be a legitimate variable or routine name
3087 (e.g. HP-UX millicode routines such as $$dyncall), or it may
c5aa993b 3088 be history value, or it may be a convenience variable */
c906108c
SS
3089
3090 if (*copy == '$')
3091 {
3092 value_ptr valx;
3093 int index = 0;
3094 int need_canonical = 0;
3095
3096 p = (copy[1] == '$') ? copy + 2 : copy + 1;
3097 while (*p >= '0' && *p <= '9')
c5aa993b
JM
3098 p++;
3099 if (!*p) /* reached end of token without hitting non-digit */
3100 {
3101 /* We have a value history reference */
3102 sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index);
3103 valx = access_value_history ((copy[1] == '$') ? -index : index);
3104 if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
3105 error ("History values used in line specs must have integer values.");
3106 }
3107 else
3108 {
3109 /* Not all digits -- may be user variable/function or a
3110 convenience variable */
3111
3112 /* Look up entire name as a symbol first */
3113 sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
3114 s = (struct symtab *) 0;
3115 need_canonical = 1;
3116 /* Symbol was found --> jump to normal symbol processing.
3117 Code following "symbol_found" expects "copy" to have the
3118 symbol name, "sym" to have the symbol pointer, "s" to be
3119 a specified file's symtab, and sym_symtab to be the symbol's
3120 symtab. */
3121 if (sym)
3122 goto symbol_found;
3123
3124 /* If symbol was not found, look in minimal symbol tables */
3125 msymbol = lookup_minimal_symbol (copy, 0, 0);
3126 /* Min symbol was found --> jump to minsym processing. */
3127 if (msymbol)
3128 goto minimal_symbol_found;
3129
3130 /* Not a user variable or function -- must be convenience variable */
3131 need_canonical = (s == 0) ? 1 : 0;
3132 valx = value_of_internalvar (lookup_internalvar (copy + 1));
3133 if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
3134 error ("Convenience variables used in line specs must have integer values.");
3135 }
3136
3137 /* Either history value or convenience value from above, in valx */
c906108c
SS
3138 val.symtab = s ? s : default_symtab;
3139 val.line = value_as_long (valx);
3140 val.pc = 0;
3141
c5aa993b 3142 values.sals = (struct symtab_and_line *) xmalloc (sizeof val);
c906108c
SS
3143 values.sals[0] = val;
3144 values.nelts = 1;
3145
3146 if (need_canonical)
3147 build_canonical_line_spec (values.sals, NULL, canonical);
3148
3149 return values;
3150 }
3151
3152
3153 /* Look up that token as a variable.
3154 If file specified, use that file's per-file block to start with. */
3155
3156 sym = lookup_symbol (copy,
3157 (s ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)
3158 : get_selected_block ()),
3159 VAR_NAMESPACE, 0, &sym_symtab);
c5aa993b
JM
3160
3161symbol_found: /* We also jump here from inside the C++ class/namespace
3162 code on finding a symbol of the form "A::B::C" */
c906108c
SS
3163
3164 if (sym != NULL)
3165 {
3166 if (SYMBOL_CLASS (sym) == LOC_BLOCK)
3167 {
3168 /* Arg is the name of a function */
3169 values.sals = (struct symtab_and_line *)
3170 xmalloc (sizeof (struct symtab_and_line));
3171 values.sals[0] = find_function_start_sal (sym, funfirstline);
3172 values.nelts = 1;
3173
3174 /* Don't use the SYMBOL_LINE; if used at all it points to
3175 the line containing the parameters or thereabouts, not
3176 the first line of code. */
3177
3178 /* We might need a canonical line spec if it is a static
3179 function. */
3180 if (s == 0)
3181 {
3182 struct blockvector *bv = BLOCKVECTOR (sym_symtab);
3183 struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
3184 if (lookup_block_symbol (b, copy, VAR_NAMESPACE) != NULL)
3185 build_canonical_line_spec (values.sals, copy, canonical);
3186 }
3187 return values;
3188 }
3189 else
3190 {
3191 if (funfirstline)
3192 error ("\"%s\" is not a function", copy);
3193 else if (SYMBOL_LINE (sym) != 0)
3194 {
3195 /* We know its line number. */
3196 values.sals = (struct symtab_and_line *)
3197 xmalloc (sizeof (struct symtab_and_line));
3198 values.nelts = 1;
3199 memset (&values.sals[0], 0, sizeof (values.sals[0]));
3200 values.sals[0].symtab = sym_symtab;
3201 values.sals[0].line = SYMBOL_LINE (sym);
3202 return values;
3203 }
3204 else
3205 /* This can happen if it is compiled with a compiler which doesn't
3206 put out line numbers for variables. */
3207 /* FIXME: Shouldn't we just set .line and .symtab to zero
3208 and return? For example, "info line foo" could print
3209 the address. */
3210 error ("Line number not known for symbol \"%s\"", copy);
3211 }
3212 }
3213
3214 msymbol = lookup_minimal_symbol (copy, NULL, NULL);
3215
c5aa993b
JM
3216minimal_symbol_found: /* We also jump here from the case for variables
3217 that begin with '$' */
3218
c906108c
SS
3219 if (msymbol != NULL)
3220 {
3221 values.sals = (struct symtab_and_line *)
3222 xmalloc (sizeof (struct symtab_and_line));
c5aa993b
JM
3223 values.sals[0] = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol),
3224 (struct sec *) 0, 0);
c906108c
SS
3225 values.sals[0].section = SYMBOL_BFD_SECTION (msymbol);
3226 if (funfirstline)
3227 {
3228 values.sals[0].pc += FUNCTION_START_OFFSET;
b83266a0 3229 values.sals[0].pc = SKIP_PROLOGUE (values.sals[0].pc);
c906108c
SS
3230 }
3231 values.nelts = 1;
3232 return values;
3233 }
3234
3235 if (!have_full_symbols () &&
3236 !have_partial_symbols () && !have_minimal_symbols ())
3237 error (no_symtab_msg);
3238
3239 error ("Function \"%s\" not defined.", copy);
c5aa993b 3240 return values; /* for lint */
c906108c
SS
3241}
3242
3243struct symtabs_and_lines
3244decode_line_spec (string, funfirstline)
3245 char *string;
3246 int funfirstline;
3247{
3248 struct symtabs_and_lines sals;
3249 if (string == 0)
3250 error ("Empty line specification.");
3251 sals = decode_line_1 (&string, funfirstline,
3252 current_source_symtab, current_source_line,
c5aa993b 3253 (char ***) NULL);
c906108c
SS
3254 if (*string)
3255 error ("Junk at end of line specification: %s", string);
3256 return sals;
3257}
3258
3259/* Given a list of NELTS symbols in SYM_ARR, return a list of lines to
3260 operate on (ask user if necessary).
3261 If CANONICAL is non-NULL return a corresponding array of mangled names
3262 as canonical line specs there. */
3263
3264static struct symtabs_and_lines
3265decode_line_2 (sym_arr, nelts, funfirstline, canonical)
3266 struct symbol *sym_arr[];
3267 int nelts;
3268 int funfirstline;
3269 char ***canonical;
3270{
3271 struct symtabs_and_lines values, return_values;
3272 char *args, *arg1;
3273 int i;
3274 char *prompt;
3275 char *symname;
3276 struct cleanup *old_chain;
c5aa993b 3277 char **canonical_arr = (char **) NULL;
c906108c 3278
c5aa993b
JM
3279 values.sals = (struct symtab_and_line *)
3280 alloca (nelts * sizeof (struct symtab_and_line));
3281 return_values.sals = (struct symtab_and_line *)
3282 xmalloc (nelts * sizeof (struct symtab_and_line));
c906108c
SS
3283 old_chain = make_cleanup (free, return_values.sals);
3284
3285 if (canonical)
3286 {
3287 canonical_arr = (char **) xmalloc (nelts * sizeof (char *));
3288 make_cleanup (free, canonical_arr);
3289 memset (canonical_arr, 0, nelts * sizeof (char *));
3290 *canonical = canonical_arr;
3291 }
3292
3293 i = 0;
c5aa993b 3294 printf_unfiltered ("[0] cancel\n[1] all\n");
c906108c
SS
3295 while (i < nelts)
3296 {
3297 INIT_SAL (&return_values.sals[i]); /* initialize to zeroes */
3298 INIT_SAL (&values.sals[i]);
3299 if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK)
3300 {
3301 values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline);
3302 printf_unfiltered ("[%d] %s at %s:%d\n",
c5aa993b 3303 (i + 2),
c906108c
SS
3304 SYMBOL_SOURCE_NAME (sym_arr[i]),
3305 values.sals[i].symtab->filename,
3306 values.sals[i].line);
3307 }
3308 else
3309 printf_unfiltered ("?HERE\n");
3310 i++;
3311 }
c5aa993b 3312
c906108c
SS
3313 if ((prompt = getenv ("PS2")) == NULL)
3314 {
3315 prompt = "> ";
3316 }
3317 args = command_line_input (prompt, 0, "overload-choice");
c5aa993b 3318
c906108c
SS
3319 if (args == 0 || *args == 0)
3320 error_no_arg ("one or more choice numbers");
3321
3322 i = 0;
3323 while (*args)
3324 {
3325 int num;
3326
3327 arg1 = args;
c5aa993b
JM
3328 while (*arg1 >= '0' && *arg1 <= '9')
3329 arg1++;
c906108c
SS
3330 if (*arg1 && *arg1 != ' ' && *arg1 != '\t')
3331 error ("Arguments must be choice numbers.");
3332
3333 num = atoi (args);
3334
3335 if (num == 0)
3336 error ("cancelled");
3337 else if (num == 1)
3338 {
3339 if (canonical_arr)
3340 {
3341 for (i = 0; i < nelts; i++)
3342 {
c5aa993b 3343 if (canonical_arr[i] == NULL)
c906108c
SS
3344 {
3345 symname = SYMBOL_NAME (sym_arr[i]);
c5aa993b 3346 canonical_arr[i] = savestring (symname, strlen (symname));
c906108c
SS
3347 }
3348 }
3349 }
3350 memcpy (return_values.sals, values.sals,
c5aa993b 3351 (nelts * sizeof (struct symtab_and_line)));
c906108c
SS
3352 return_values.nelts = nelts;
3353 discard_cleanups (old_chain);
3354 return return_values;
3355 }
3356
3357 if (num >= nelts + 2)
3358 {
3359 printf_unfiltered ("No choice number %d.\n", num);
3360 }
3361 else
3362 {
3363 num -= 2;
3364 if (values.sals[num].pc)
3365 {
3366 if (canonical_arr)
3367 {
3368 symname = SYMBOL_NAME (sym_arr[num]);
3369 make_cleanup (free, symname);
3370 canonical_arr[i] = savestring (symname, strlen (symname));
3371 }
3372 return_values.sals[i++] = values.sals[num];
3373 values.sals[num].pc = 0;
3374 }
3375 else
3376 {
3377 printf_unfiltered ("duplicate request for %d ignored.\n", num);
3378 }
3379 }
3380
3381 args = arg1;
c5aa993b
JM
3382 while (*args == ' ' || *args == '\t')
3383 args++;
c906108c
SS
3384 }
3385 return_values.nelts = i;
3386 discard_cleanups (old_chain);
3387 return return_values;
3388}
c906108c 3389\f
c5aa993b 3390
c906108c
SS
3391/* Slave routine for sources_info. Force line breaks at ,'s.
3392 NAME is the name to print and *FIRST is nonzero if this is the first
3393 name printed. Set *FIRST to zero. */
3394static void
3395output_source_filename (name, first)
3396 char *name;
3397 int *first;
3398{
3399 /* Table of files printed so far. Since a single source file can
3400 result in several partial symbol tables, we need to avoid printing
3401 it more than once. Note: if some of the psymtabs are read in and
3402 some are not, it gets printed both under "Source files for which
3403 symbols have been read" and "Source files for which symbols will
3404 be read in on demand". I consider this a reasonable way to deal
3405 with the situation. I'm not sure whether this can also happen for
3406 symtabs; it doesn't hurt to check. */
3407 static char **tab = NULL;
3408 /* Allocated size of tab in elements.
3409 Start with one 256-byte block (when using GNU malloc.c).
3410 24 is the malloc overhead when range checking is in effect. */
3411 static int tab_alloc_size = (256 - 24) / sizeof (char *);
3412 /* Current size of tab in elements. */
3413 static int tab_cur_size;
3414
3415 char **p;
3416
3417 if (*first)
3418 {
3419 if (tab == NULL)
3420 tab = (char **) xmalloc (tab_alloc_size * sizeof (*tab));
3421 tab_cur_size = 0;
3422 }
3423
3424 /* Is NAME in tab? */
3425 for (p = tab; p < tab + tab_cur_size; p++)
3426 if (STREQ (*p, name))
3427 /* Yes; don't print it again. */
3428 return;
3429 /* No; add it to tab. */
3430 if (tab_cur_size == tab_alloc_size)
3431 {
3432 tab_alloc_size *= 2;
3433 tab = (char **) xrealloc ((char *) tab, tab_alloc_size * sizeof (*tab));
3434 }
3435 tab[tab_cur_size++] = name;
3436
3437 if (*first)
3438 {
3439 *first = 0;
3440 }
3441 else
3442 {
3443 printf_filtered (", ");
3444 }
3445
3446 wrap_here ("");
3447 fputs_filtered (name, gdb_stdout);
c5aa993b 3448}
c906108c
SS
3449
3450static void
3451sources_info (ignore, from_tty)
3452 char *ignore;
3453 int from_tty;
3454{
3455 register struct symtab *s;
3456 register struct partial_symtab *ps;
3457 register struct objfile *objfile;
3458 int first;
c5aa993b 3459
c906108c
SS
3460 if (!have_full_symbols () && !have_partial_symbols ())
3461 {
3462 error (no_symtab_msg);
3463 }
c5aa993b 3464
c906108c
SS
3465 printf_filtered ("Source files for which symbols have been read in:\n\n");
3466
3467 first = 1;
3468 ALL_SYMTABS (objfile, s)
c5aa993b
JM
3469 {
3470 output_source_filename (s->filename, &first);
3471 }
c906108c 3472 printf_filtered ("\n\n");
c5aa993b 3473
c906108c
SS
3474 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
3475
3476 first = 1;
3477 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
3478 {
3479 if (!ps->readin)
3480 {
3481 output_source_filename (ps->filename, &first);
3482 }
3483 }
c906108c
SS
3484 printf_filtered ("\n");
3485}
3486
3487static int
3488file_matches (file, files, nfiles)
3489 char *file;
3490 char *files[];
3491 int nfiles;
3492{
3493 int i;
3494
3495 if (file != NULL && nfiles != 0)
3496 {
3497 for (i = 0; i < nfiles; i++)
c5aa993b
JM
3498 {
3499 if (strcmp (files[i], basename (file)) == 0)
3500 return 1;
3501 }
c906108c
SS
3502 }
3503 else if (nfiles == 0)
3504 return 1;
3505 return 0;
3506}
3507
3508/* Free any memory associated with a search. */
3509void
3510free_search_symbols (symbols)
3511 struct symbol_search *symbols;
3512{
3513 struct symbol_search *p;
3514 struct symbol_search *next;
3515
3516 for (p = symbols; p != NULL; p = next)
3517 {
3518 next = p->next;
3519 free (p);
3520 }
3521}
3522
3523/* Search the symbol table for matches to the regular expression REGEXP,
3524 returning the results in *MATCHES.
3525
3526 Only symbols of KIND are searched:
c5aa993b
JM
3527 FUNCTIONS_NAMESPACE - search all functions
3528 TYPES_NAMESPACE - search all type names
3529 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
3530 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
3531 and constants (enums)
c906108c
SS
3532
3533 free_search_symbols should be called when *MATCHES is no longer needed.
c5aa993b 3534 */
c906108c
SS
3535void
3536search_symbols (regexp, kind, nfiles, files, matches)
3537 char *regexp;
3538 namespace_enum kind;
3539 int nfiles;
3540 char *files[];
3541 struct symbol_search **matches;
c5aa993b 3542
c906108c
SS
3543{
3544 register struct symtab *s;
3545 register struct partial_symtab *ps;
3546 register struct blockvector *bv;
3547 struct blockvector *prev_bv = 0;
3548 register struct block *b;
3549 register int i = 0;
3550 register int j;
3551 register struct symbol *sym;
3552 struct partial_symbol **psym;
3553 struct objfile *objfile;
3554 struct minimal_symbol *msymbol;
3555 char *val;
3556 int found_misc = 0;
3557 static enum minimal_symbol_type types[]
c5aa993b
JM
3558 =
3559 {mst_data, mst_text, mst_abs, mst_unknown};
c906108c 3560 static enum minimal_symbol_type types2[]
c5aa993b
JM
3561 =
3562 {mst_bss, mst_file_text, mst_abs, mst_unknown};
c906108c 3563 static enum minimal_symbol_type types3[]
c5aa993b
JM
3564 =
3565 {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown};
c906108c 3566 static enum minimal_symbol_type types4[]
c5aa993b
JM
3567 =
3568 {mst_file_bss, mst_text, mst_abs, mst_unknown};
c906108c
SS
3569 enum minimal_symbol_type ourtype;
3570 enum minimal_symbol_type ourtype2;
3571 enum minimal_symbol_type ourtype3;
3572 enum minimal_symbol_type ourtype4;
3573 struct symbol_search *sr;
3574 struct symbol_search *psr;
3575 struct symbol_search *tail;
3576 struct cleanup *old_chain = NULL;
3577
3578 if (kind < LABEL_NAMESPACE)
3579 error ("must search on specific namespace");
3580
3581 ourtype = types[(int) (kind - LABEL_NAMESPACE)];
3582 ourtype2 = types2[(int) (kind - LABEL_NAMESPACE)];
3583 ourtype3 = types3[(int) (kind - LABEL_NAMESPACE)];
3584 ourtype4 = types4[(int) (kind - LABEL_NAMESPACE)];
3585
3586 sr = *matches = NULL;
3587 tail = NULL;
3588
3589 if (regexp != NULL)
3590 {
3591 /* Make sure spacing is right for C++ operators.
3592 This is just a courtesy to make the matching less sensitive
3593 to how many spaces the user leaves between 'operator'
3594 and <TYPENAME> or <OPERATOR>. */
3595 char *opend;
3596 char *opname = operator_chars (regexp, &opend);
3597 if (*opname)
c5aa993b
JM
3598 {
3599 int fix = -1; /* -1 means ok; otherwise number of spaces needed. */
3600 if (isalpha (*opname) || *opname == '_' || *opname == '$')
3601 {
3602 /* There should 1 space between 'operator' and 'TYPENAME'. */
3603 if (opname[-1] != ' ' || opname[-2] == ' ')
3604 fix = 1;
3605 }
3606 else
3607 {
3608 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
3609 if (opname[-1] == ' ')
3610 fix = 0;
3611 }
3612 /* If wrong number of spaces, fix it. */
3613 if (fix >= 0)
3614 {
3615 char *tmp = (char *) alloca (opend - opname + 10);
3616 sprintf (tmp, "operator%.*s%s", fix, " ", opname);
3617 regexp = tmp;
3618 }
3619 }
3620
c906108c 3621 if (0 != (val = re_comp (regexp)))
c5aa993b 3622 error ("Invalid regexp (%s): %s", val, regexp);
c906108c
SS
3623 }
3624
3625 /* Search through the partial symtabs *first* for all symbols
3626 matching the regexp. That way we don't have to reproduce all of
3627 the machinery below. */
3628
3629 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
3630 {
3631 struct partial_symbol **bound, **gbound, **sbound;
3632 int keep_going = 1;
3633
3634 if (ps->readin)
3635 continue;
3636
3637 gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms;
3638 sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms;
3639 bound = gbound;
3640
3641 /* Go through all of the symbols stored in a partial
3642 symtab in one loop. */
3643 psym = objfile->global_psymbols.list + ps->globals_offset;
3644 while (keep_going)
3645 {
3646 if (psym >= bound)
3647 {
3648 if (bound == gbound && ps->n_static_syms != 0)
3649 {
3650 psym = objfile->static_psymbols.list + ps->statics_offset;
3651 bound = sbound;
3652 }
3653 else
3654 keep_going = 0;
3655 continue;
3656 }
3657 else
3658 {
3659 QUIT;
3660
3661 /* If it would match (logic taken from loop below)
3662 load the file and go on to the next one */
3663 if (file_matches (ps->filename, files, nfiles)
3664 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (*psym))
3665 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (*psym) != LOC_TYPEDEF
3666 && SYMBOL_CLASS (*psym) != LOC_BLOCK)
3667 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK)
3668 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_TYPEDEF)
3669 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK))))
3670 {
3671 PSYMTAB_TO_SYMTAB (ps);
3672 keep_going = 0;
3673 }
3674 }
3675 psym++;
3676 }
3677 }
c906108c
SS
3678
3679 /* Here, we search through the minimal symbol tables for functions
3680 and variables that match, and force their symbols to be read.
3681 This is in particular necessary for demangled variable names,
3682 which are no longer put into the partial symbol tables.
3683 The symbol will then be found during the scan of symtabs below.
3684
3685 For functions, find_pc_symtab should succeed if we have debug info
3686 for the function, for variables we have to call lookup_symbol
3687 to determine if the variable has debug info.
3688 If the lookup fails, set found_misc so that we will rescan to print
3689 any matching symbols without debug info.
c5aa993b 3690 */
c906108c
SS
3691
3692 if (nfiles == 0 && (kind == VARIABLES_NAMESPACE || kind == FUNCTIONS_NAMESPACE))
3693 {
3694 ALL_MSYMBOLS (objfile, msymbol)
c5aa993b
JM
3695 {
3696 if (MSYMBOL_TYPE (msymbol) == ourtype ||
3697 MSYMBOL_TYPE (msymbol) == ourtype2 ||
3698 MSYMBOL_TYPE (msymbol) == ourtype3 ||
3699 MSYMBOL_TYPE (msymbol) == ourtype4)
3700 {
3701 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
3702 {
3703 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))
3704 {
3705 if (kind == FUNCTIONS_NAMESPACE
3706 || lookup_symbol (SYMBOL_NAME (msymbol),
3707 (struct block *) NULL,
3708 VAR_NAMESPACE,
3709 0, (struct symtab **) NULL) == NULL)
3710 found_misc = 1;
3711 }
3712 }
3713 }
3714 }
c906108c
SS
3715 }
3716
3717 ALL_SYMTABS (objfile, s)
c5aa993b
JM
3718 {
3719 bv = BLOCKVECTOR (s);
3720 /* Often many files share a blockvector.
3721 Scan each blockvector only once so that
3722 we don't get every symbol many times.
3723 It happens that the first symtab in the list
3724 for any given blockvector is the main file. */
3725 if (bv != prev_bv)
3726 for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
3727 {
3728 b = BLOCKVECTOR_BLOCK (bv, i);
3729 /* Skip the sort if this block is always sorted. */
3730 if (!BLOCK_SHOULD_SORT (b))
3731 sort_block_syms (b);
3732 for (j = 0; j < BLOCK_NSYMS (b); j++)
3733 {
3734 QUIT;
3735 sym = BLOCK_SYM (b, j);
3736 if (file_matches (s->filename, files, nfiles)
3737 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (sym))
3738 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (sym) != LOC_TYPEDEF
3739 && SYMBOL_CLASS (sym) != LOC_BLOCK
3740 && SYMBOL_CLASS (sym) != LOC_CONST)
3741 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK)
3742 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
3743 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK))))
3744 {
3745 /* match */
3746 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
3747 psr->block = i;
3748 psr->symtab = s;
3749 psr->symbol = sym;
3750 psr->msymbol = NULL;
3751 psr->next = NULL;
3752 if (tail == NULL)
3753 {
3754 sr = psr;
3755 old_chain = make_cleanup ((make_cleanup_func)
3756 free_search_symbols, sr);
3757 }
3758 else
3759 tail->next = psr;
3760 tail = psr;
3761 }
3762 }
3763 }
3764 prev_bv = bv;
3765 }
c906108c
SS
3766
3767 /* If there are no eyes, avoid all contact. I mean, if there are
3768 no debug symbols, then print directly from the msymbol_vector. */
3769
3770 if (found_misc || kind != FUNCTIONS_NAMESPACE)
3771 {
3772 ALL_MSYMBOLS (objfile, msymbol)
c5aa993b
JM
3773 {
3774 if (MSYMBOL_TYPE (msymbol) == ourtype ||
3775 MSYMBOL_TYPE (msymbol) == ourtype2 ||
3776 MSYMBOL_TYPE (msymbol) == ourtype3 ||
3777 MSYMBOL_TYPE (msymbol) == ourtype4)
3778 {
3779 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
3780 {
3781 /* Functions: Look up by address. */
3782 if (kind != FUNCTIONS_NAMESPACE ||
3783 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))))
3784 {
3785 /* Variables/Absolutes: Look up by name */
3786 if (lookup_symbol (SYMBOL_NAME (msymbol),
3787 (struct block *) NULL, VAR_NAMESPACE,
3788 0, (struct symtab **) NULL) == NULL)
3789 {
3790 /* match */
3791 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
3792 psr->block = i;
3793 psr->msymbol = msymbol;
3794 psr->symtab = NULL;
3795 psr->symbol = NULL;
3796 psr->next = NULL;
3797 if (tail == NULL)
3798 {
3799 sr = psr;
3800 old_chain = make_cleanup ((make_cleanup_func)
3801 free_search_symbols, &sr);
3802 }
3803 else
3804 tail->next = psr;
3805 tail = psr;
3806 }
3807 }
3808 }
3809 }
3810 }
c906108c
SS
3811 }
3812
3813 *matches = sr;
3814 if (sr != NULL)
3815 discard_cleanups (old_chain);
3816}
3817
3818/* Helper function for symtab_symbol_info, this function uses
3819 the data returned from search_symbols() to print information
3820 regarding the match to gdb_stdout.
c5aa993b 3821 */
c906108c
SS
3822static void
3823print_symbol_info (kind, s, sym, block, last)
3824 namespace_enum kind;
3825 struct symtab *s;
3826 struct symbol *sym;
3827 int block;
3828 char *last;
3829{
3830 if (last == NULL || strcmp (last, s->filename) != 0)
3831 {
3832 fputs_filtered ("\nFile ", gdb_stdout);
3833 fputs_filtered (s->filename, gdb_stdout);
3834 fputs_filtered (":\n", gdb_stdout);
3835 }
3836
3837 if (kind != TYPES_NAMESPACE && block == STATIC_BLOCK)
3838 printf_filtered ("static ");
c5aa993b 3839
c906108c
SS
3840 /* Typedef that is not a C++ class */
3841 if (kind == TYPES_NAMESPACE
3842 && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE)
c5aa993b 3843 c_typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout);
c906108c 3844 /* variable, func, or typedef-that-is-c++-class */
c5aa993b
JM
3845 else if (kind < TYPES_NAMESPACE ||
3846 (kind == TYPES_NAMESPACE &&
3847 SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE))
c906108c
SS
3848 {
3849 type_print (SYMBOL_TYPE (sym),
c5aa993b
JM
3850 (SYMBOL_CLASS (sym) == LOC_TYPEDEF
3851 ? "" : SYMBOL_SOURCE_NAME (sym)),
3852 gdb_stdout, 0);
c906108c
SS
3853
3854 printf_filtered (";\n");
3855 }
3856 else
3857 {
c5aa993b 3858#if 0
c906108c
SS
3859 /* Tiemann says: "info methods was never implemented." */
3860 char *demangled_name;
c5aa993b
JM
3861 c_type_print_base (TYPE_FN_FIELD_TYPE (t, block),
3862 gdb_stdout, 0, 0);
3863 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t, block),
3864 gdb_stdout, 0);
c906108c 3865 if (TYPE_FN_FIELD_STUB (t, block))
c5aa993b 3866 check_stub_method (TYPE_DOMAIN_TYPE (type), j, block);
c906108c 3867 demangled_name =
c5aa993b
JM
3868 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t, block),
3869 DMGL_ANSI | DMGL_PARAMS);
c906108c 3870 if (demangled_name == NULL)
c5aa993b
JM
3871 fprintf_filtered (stream, "<badly mangled name %s>",
3872 TYPE_FN_FIELD_PHYSNAME (t, block));
c906108c 3873 else
c5aa993b
JM
3874 {
3875 fputs_filtered (demangled_name, stream);
3876 free (demangled_name);
3877 }
3878#endif
c906108c
SS
3879 }
3880}
3881
3882/* This help function for symtab_symbol_info() prints information
3883 for non-debugging symbols to gdb_stdout.
c5aa993b 3884 */
c906108c
SS
3885static void
3886print_msymbol_info (msymbol)
3887 struct minimal_symbol *msymbol;
3888{
3889 printf_filtered (" %08lx %s\n",
c5aa993b
JM
3890 (unsigned long) SYMBOL_VALUE_ADDRESS (msymbol),
3891 SYMBOL_SOURCE_NAME (msymbol));
c906108c
SS
3892}
3893
3894/* This is the guts of the commands "info functions", "info types", and
3895 "info variables". It calls search_symbols to find all matches and then
3896 print_[m]symbol_info to print out some useful information about the
3897 matches.
c5aa993b 3898 */
c906108c
SS
3899static void
3900symtab_symbol_info (regexp, kind, from_tty)
3901 char *regexp;
3902 namespace_enum kind;
c5aa993b 3903 int from_tty;
c906108c
SS
3904{
3905 static char *classnames[]
c5aa993b
JM
3906 =
3907 {"variable", "function", "type", "method"};
c906108c
SS
3908 struct symbol_search *symbols;
3909 struct symbol_search *p;
3910 struct cleanup *old_chain;
3911 char *last_filename = NULL;
3912 int first = 1;
3913
3914 /* must make sure that if we're interrupted, symbols gets freed */
3915 search_symbols (regexp, kind, 0, (char **) NULL, &symbols);
3916 old_chain = make_cleanup ((make_cleanup_func) free_search_symbols, symbols);
3917
3918 printf_filtered (regexp
c5aa993b
JM
3919 ? "All %ss matching regular expression \"%s\":\n"
3920 : "All defined %ss:\n",
3921 classnames[(int) (kind - LABEL_NAMESPACE - 1)], regexp);
c906108c
SS
3922
3923 for (p = symbols; p != NULL; p = p->next)
3924 {
3925 QUIT;
3926
3927 if (p->msymbol != NULL)
c5aa993b
JM
3928 {
3929 if (first)
3930 {
3931 printf_filtered ("\nNon-debugging symbols:\n");
3932 first = 0;
3933 }
3934 print_msymbol_info (p->msymbol);
3935 }
c906108c 3936 else
c5aa993b
JM
3937 {
3938 print_symbol_info (kind,
3939 p->symtab,
3940 p->symbol,
3941 p->block,
3942 last_filename);
3943 last_filename = p->symtab->filename;
3944 }
c906108c
SS
3945 }
3946
3947 do_cleanups (old_chain);
3948}
3949
3950static void
3951variables_info (regexp, from_tty)
3952 char *regexp;
3953 int from_tty;
3954{
3955 symtab_symbol_info (regexp, VARIABLES_NAMESPACE, from_tty);
3956}
3957
3958static void
3959functions_info (regexp, from_tty)
3960 char *regexp;
3961 int from_tty;
3962{
3963 symtab_symbol_info (regexp, FUNCTIONS_NAMESPACE, from_tty);
3964}
3965
3966static void
3967types_info (regexp, from_tty)
3968 char *regexp;
3969 int from_tty;
3970{
3971 symtab_symbol_info (regexp, TYPES_NAMESPACE, from_tty);
3972}
3973
3974#if 0
3975/* Tiemann says: "info methods was never implemented." */
3976static void
3977methods_info (regexp)
3978 char *regexp;
3979{
3980 symtab_symbol_info (regexp, METHODS_NAMESPACE, 0, from_tty);
3981}
3982#endif /* 0 */
3983
3984/* Breakpoint all functions matching regular expression. */
3985static void
3986rbreak_command (regexp, from_tty)
3987 char *regexp;
3988 int from_tty;
3989{
3990 struct symbol_search *ss;
3991 struct symbol_search *p;
3992 struct cleanup *old_chain;
3993
3994 search_symbols (regexp, FUNCTIONS_NAMESPACE, 0, (char **) NULL, &ss);
3995 old_chain = make_cleanup ((make_cleanup_func) free_search_symbols, ss);
3996
3997 for (p = ss; p != NULL; p = p->next)
3998 {
3999 if (p->msymbol == NULL)
c5aa993b
JM
4000 {
4001 char *string = (char *) alloca (strlen (p->symtab->filename)
4002 + strlen (SYMBOL_NAME (p->symbol))
4003 + 4);
4004 strcpy (string, p->symtab->filename);
4005 strcat (string, ":'");
4006 strcat (string, SYMBOL_NAME (p->symbol));
4007 strcat (string, "'");
4008 break_command (string, from_tty);
4009 print_symbol_info (FUNCTIONS_NAMESPACE,
4010 p->symtab,
4011 p->symbol,
4012 p->block,
4013 p->symtab->filename);
4014 }
c906108c 4015 else
c5aa993b
JM
4016 {
4017 break_command (SYMBOL_NAME (p->msymbol), from_tty);
4018 printf_filtered ("<function, no debug info> %s;\n",
4019 SYMBOL_SOURCE_NAME (p->msymbol));
4020 }
c906108c
SS
4021 }
4022
4023 do_cleanups (old_chain);
4024}
c906108c 4025\f
c5aa993b 4026
c906108c
SS
4027/* Return Nonzero if block a is lexically nested within block b,
4028 or if a and b have the same pc range.
4029 Return zero otherwise. */
4030int
4031contained_in (a, b)
4032 struct block *a, *b;
4033{
4034 if (!a || !b)
4035 return 0;
4036 return BLOCK_START (a) >= BLOCK_START (b)
c5aa993b 4037 && BLOCK_END (a) <= BLOCK_END (b);
c906108c 4038}
c906108c 4039\f
c5aa993b 4040
c906108c
SS
4041/* Helper routine for make_symbol_completion_list. */
4042
4043static int return_val_size;
4044static int return_val_index;
4045static char **return_val;
4046
4047#define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
4048 do { \
4049 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
4050 /* Put only the mangled name on the list. */ \
4051 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
4052 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
4053 completion_list_add_name \
4054 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
4055 else \
4056 completion_list_add_name \
4057 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
4058 } while (0)
4059
4060/* Test to see if the symbol specified by SYMNAME (which is already
c5aa993b
JM
4061 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
4062 characters. If so, add it to the current completion list. */
c906108c
SS
4063
4064static void
4065completion_list_add_name (symname, sym_text, sym_text_len, text, word)
4066 char *symname;
4067 char *sym_text;
4068 int sym_text_len;
4069 char *text;
4070 char *word;
4071{
4072 int newsize;
4073 int i;
4074
4075 /* clip symbols that cannot match */
4076
4077 if (strncmp (symname, sym_text, sym_text_len) != 0)
4078 {
4079 return;
4080 }
4081
4082 /* Clip any symbol names that we've already considered. (This is a
4083 time optimization) */
4084
4085 for (i = 0; i < return_val_index; ++i)
4086 {
4087 if (STREQ (symname, return_val[i]))
4088 {
4089 return;
4090 }
4091 }
c5aa993b 4092
c906108c
SS
4093 /* We have a match for a completion, so add SYMNAME to the current list
4094 of matches. Note that the name is moved to freshly malloc'd space. */
4095
4096 {
4097 char *new;
4098 if (word == sym_text)
4099 {
4100 new = xmalloc (strlen (symname) + 5);
4101 strcpy (new, symname);
4102 }
4103 else if (word > sym_text)
4104 {
4105 /* Return some portion of symname. */
4106 new = xmalloc (strlen (symname) + 5);
4107 strcpy (new, symname + (word - sym_text));
4108 }
4109 else
4110 {
4111 /* Return some of SYM_TEXT plus symname. */
4112 new = xmalloc (strlen (symname) + (sym_text - word) + 5);
4113 strncpy (new, word, sym_text - word);
4114 new[sym_text - word] = '\0';
4115 strcat (new, symname);
4116 }
4117
4118 /* Recheck for duplicates if we intend to add a modified symbol. */
4119 if (word != sym_text)
4120 {
4121 for (i = 0; i < return_val_index; ++i)
4122 {
4123 if (STREQ (new, return_val[i]))
4124 {
4125 free (new);
4126 return;
4127 }
4128 }
4129 }
4130
4131 if (return_val_index + 3 > return_val_size)
4132 {
4133 newsize = (return_val_size *= 2) * sizeof (char *);
4134 return_val = (char **) xrealloc ((char *) return_val, newsize);
4135 }
4136 return_val[return_val_index++] = new;
4137 return_val[return_val_index] = NULL;
4138 }
4139}
4140
4141/* Return a NULL terminated array of all symbols (regardless of class) which
4142 begin by matching TEXT. If the answer is no symbols, then the return value
4143 is an array which contains only a NULL pointer.
4144
4145 Problem: All of the symbols have to be copied because readline frees them.
4146 I'm not going to worry about this; hopefully there won't be that many. */
4147
4148char **
4149make_symbol_completion_list (text, word)
4150 char *text;
4151 char *word;
4152{
4153 register struct symbol *sym;
4154 register struct symtab *s;
4155 register struct partial_symtab *ps;
4156 register struct minimal_symbol *msymbol;
4157 register struct objfile *objfile;
4158 register struct block *b, *surrounding_static_block = 0;
4159 register int i, j;
4160 struct partial_symbol **psym;
4161 /* The symbol we are completing on. Points in same buffer as text. */
4162 char *sym_text;
4163 /* Length of sym_text. */
4164 int sym_text_len;
4165
4166 /* Now look for the symbol we are supposed to complete on.
4167 FIXME: This should be language-specific. */
4168 {
4169 char *p;
4170 char quote_found;
4171 char *quote_pos = NULL;
4172
4173 /* First see if this is a quoted string. */
4174 quote_found = '\0';
4175 for (p = text; *p != '\0'; ++p)
4176 {
4177 if (quote_found != '\0')
4178 {
4179 if (*p == quote_found)
4180 /* Found close quote. */
4181 quote_found = '\0';
4182 else if (*p == '\\' && p[1] == quote_found)
4183 /* A backslash followed by the quote character
c5aa993b 4184 doesn't end the string. */
c906108c
SS
4185 ++p;
4186 }
4187 else if (*p == '\'' || *p == '"')
4188 {
4189 quote_found = *p;
4190 quote_pos = p;
4191 }
4192 }
4193 if (quote_found == '\'')
4194 /* A string within single quotes can be a symbol, so complete on it. */
4195 sym_text = quote_pos + 1;
4196 else if (quote_found == '"')
4197 /* A double-quoted string is never a symbol, nor does it make sense
c5aa993b 4198 to complete it any other way. */
c906108c
SS
4199 return NULL;
4200 else
4201 {
4202 /* It is not a quoted string. Break it based on the characters
4203 which are in symbols. */
4204 while (p > text)
4205 {
4206 if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
4207 --p;
4208 else
4209 break;
4210 }
4211 sym_text = p;
4212 }
4213 }
4214
4215 sym_text_len = strlen (sym_text);
4216
4217 return_val_size = 100;
4218 return_val_index = 0;
4219 return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *));
4220 return_val[0] = NULL;
4221
4222 /* Look through the partial symtabs for all symbols which begin
4223 by matching SYM_TEXT. Add each one that you find to the list. */
4224
4225 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
4226 {
4227 /* If the psymtab's been read in we'll get it when we search
4228 through the blockvector. */
4229 if (ps->readin)
4230 continue;
4231
4232 for (psym = objfile->global_psymbols.list + ps->globals_offset;
4233 psym < (objfile->global_psymbols.list + ps->globals_offset
4234 + ps->n_global_syms);
4235 psym++)
4236 {
4237 /* If interrupted, then quit. */
4238 QUIT;
4239 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
4240 }
4241
4242 for (psym = objfile->static_psymbols.list + ps->statics_offset;
4243 psym < (objfile->static_psymbols.list + ps->statics_offset
4244 + ps->n_static_syms);
4245 psym++)
4246 {
4247 QUIT;
4248 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
4249 }
4250 }
c906108c
SS
4251
4252 /* At this point scan through the misc symbol vectors and add each
4253 symbol you find to the list. Eventually we want to ignore
4254 anything that isn't a text symbol (everything else will be
4255 handled by the psymtab code above). */
4256
4257 ALL_MSYMBOLS (objfile, msymbol)
c5aa993b
JM
4258 {
4259 QUIT;
4260 COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word);
4261 }
c906108c
SS
4262
4263 /* Search upwards from currently selected frame (so that we can
4264 complete on local vars. */
4265
4266 for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
4267 {
4268 if (!BLOCK_SUPERBLOCK (b))
4269 {
c5aa993b 4270 surrounding_static_block = b; /* For elmin of dups */
c906108c 4271 }
c5aa993b 4272
c906108c 4273 /* Also catch fields of types defined in this places which match our
c5aa993b 4274 text string. Only complete on types visible from current context. */
c906108c
SS
4275
4276 for (i = 0; i < BLOCK_NSYMS (b); i++)
4277 {
4278 sym = BLOCK_SYM (b, i);
4279 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
4280 if (SYMBOL_CLASS (sym) == LOC_TYPEDEF)
4281 {
4282 struct type *t = SYMBOL_TYPE (sym);
4283 enum type_code c = TYPE_CODE (t);
4284
4285 if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT)
4286 {
4287 for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++)
4288 {
4289 if (TYPE_FIELD_NAME (t, j))
4290 {
4291 completion_list_add_name (TYPE_FIELD_NAME (t, j),
c5aa993b 4292 sym_text, sym_text_len, text, word);
c906108c
SS
4293 }
4294 }
4295 }
4296 }
4297 }
4298 }
4299
4300 /* Go through the symtabs and check the externs and statics for
4301 symbols which match. */
4302
4303 ALL_SYMTABS (objfile, s)
c5aa993b
JM
4304 {
4305 QUIT;
4306 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
4307 for (i = 0; i < BLOCK_NSYMS (b); i++)
4308 {
4309 sym = BLOCK_SYM (b, i);
4310 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
4311 }
4312 }
c906108c
SS
4313
4314 ALL_SYMTABS (objfile, s)
c5aa993b
JM
4315 {
4316 QUIT;
4317 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
4318 /* Don't do this block twice. */
4319 if (b == surrounding_static_block)
4320 continue;
4321 for (i = 0; i < BLOCK_NSYMS (b); i++)
4322 {
4323 sym = BLOCK_SYM (b, i);
4324 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
4325 }
4326 }
c906108c
SS
4327
4328 return (return_val);
4329}
4330
4331/* Determine if PC is in the prologue of a function. The prologue is the area
4332 between the first instruction of a function, and the first executable line.
4333 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
4334
4335 If non-zero, func_start is where we think the prologue starts, possibly
4336 by previous examination of symbol table information.
4337 */
4338
4339int
4340in_prologue (pc, func_start)
4341 CORE_ADDR pc;
4342 CORE_ADDR func_start;
4343{
4344 struct symtab_and_line sal;
4345 CORE_ADDR func_addr, func_end;
4346
4347 if (!find_pc_partial_function (pc, NULL, &func_addr, &func_end))
4348 goto nosyms; /* Might be in prologue */
4349
4350 sal = find_pc_line (func_addr, 0);
4351
4352 if (sal.line == 0)
4353 goto nosyms;
4354
4355 /* sal.end is the address of the first instruction past sal.line. */
4356 if (sal.end > func_addr
4357 && sal.end <= func_end) /* Is prologue in function? */
4358 return pc < sal.end; /* Yes, is pc in prologue? */
4359
4360 /* The line after the prologue seems to be outside the function. In this
4361 case, tell the caller to find the prologue the hard way. */
4362
4363 return 1;
4364
4365/* Come here when symtabs don't contain line # info. In this case, it is
4366 likely that the user has stepped into a library function w/o symbols, or
4367 is doing a stepi/nexti through code without symbols. */
4368
c5aa993b 4369nosyms:
c906108c
SS
4370
4371/* If func_start is zero (meaning unknown) then we don't know whether pc is
4372 in the prologue or not. I.E. it might be. */
4373
c5aa993b
JM
4374 if (!func_start)
4375 return 1;
c906108c
SS
4376
4377/* We need to call the target-specific prologue skipping functions with the
4378 function's start address because PC may be pointing at an instruction that
4379 could be mistakenly considered part of the prologue. */
4380
b83266a0 4381 func_start = SKIP_PROLOGUE (func_start);
c906108c
SS
4382
4383 return pc < func_start;
4384}
4385
4386
4387/* Begin overload resolution functions */
4388/* Helper routine for make_symbol_completion_list. */
4389
4390static int sym_return_val_size;
4391static int sym_return_val_index;
4392static struct symbol **sym_return_val;
4393
4394/* Test to see if the symbol specified by SYMNAME (which is already
c5aa993b
JM
4395 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
4396 characters. If so, add it to the current completion list. */
c906108c
SS
4397
4398static void
4399overload_list_add_symbol (sym, oload_name)
c5aa993b
JM
4400 struct symbol *sym;
4401 char *oload_name;
c906108c
SS
4402{
4403 int newsize;
4404 int i;
4405
4406 /* Get the demangled name without parameters */
c5aa993b 4407 char *sym_name = cplus_demangle (SYMBOL_NAME (sym), DMGL_ARM | DMGL_ANSI);
c906108c
SS
4408 if (!sym_name)
4409 {
4410 sym_name = (char *) xmalloc (strlen (SYMBOL_NAME (sym)) + 1);
4411 strcpy (sym_name, SYMBOL_NAME (sym));
4412 }
4413
4414 /* skip symbols that cannot match */
4415 if (strcmp (sym_name, oload_name) != 0)
4416 return;
4417
4418 /* If there is no type information, we can't do anything, so skip */
4419 if (SYMBOL_TYPE (sym) == NULL)
4420 return;
4421
4422 /* skip any symbols that we've already considered. */
4423 for (i = 0; i < sym_return_val_index; ++i)
4424 if (!strcmp (SYMBOL_NAME (sym), SYMBOL_NAME (sym_return_val[i])))
4425 return;
4426
4427 /* We have a match for an overload instance, so add SYM to the current list
4428 * of overload instances */
4429 if (sym_return_val_index + 3 > sym_return_val_size)
4430 {
4431 newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *);
4432 sym_return_val = (struct symbol **) xrealloc ((char *) sym_return_val, newsize);
4433 }
4434 sym_return_val[sym_return_val_index++] = sym;
4435 sym_return_val[sym_return_val_index] = NULL;
c5aa993b 4436
c906108c
SS
4437 free (sym_name);
4438}
4439
4440/* Return a null-terminated list of pointers to function symbols that
4441 * match name of the supplied symbol FSYM.
4442 * This is used in finding all overloaded instances of a function name.
4443 * This has been modified from make_symbol_completion_list. */
4444
4445
4446struct symbol **
4447make_symbol_overload_list (fsym)
c5aa993b 4448 struct symbol *fsym;
c906108c
SS
4449{
4450 register struct symbol *sym;
4451 register struct symtab *s;
4452 register struct partial_symtab *ps;
4453 register struct minimal_symbol *msymbol;
4454 register struct objfile *objfile;
4455 register struct block *b, *surrounding_static_block = 0;
4456 register int i, j;
4457 struct partial_symbol **psym;
4458 /* The name we are completing on. */
4459 char *oload_name = NULL;
4460 /* Length of name. */
4461 int oload_name_len = 0;
4462
4463 /* Look for the symbol we are supposed to complete on.
4464 * FIXME: This should be language-specific. */
4465
4466 oload_name = cplus_demangle (SYMBOL_NAME (fsym), DMGL_ARM | DMGL_ANSI);
4467 if (!oload_name)
4468 {
4469 oload_name = (char *) xmalloc (strlen (SYMBOL_NAME (fsym)) + 1);
4470 strcpy (oload_name, SYMBOL_NAME (fsym));
4471 }
4472 oload_name_len = strlen (oload_name);
4473
4474 sym_return_val_size = 100;
4475 sym_return_val_index = 0;
4476 sym_return_val = (struct symbol **) xmalloc ((sym_return_val_size + 1) * sizeof (struct symbol *));
4477 sym_return_val[0] = NULL;
4478
7a292a7a
SS
4479 /* Comment and #if 0 from Rajiv Mirani <mirani@cup.hp.com>.
4480 However, leaving #if 0's around is uncool. We need to figure out
4481 what this is really trying to do, decide whether we want that,
4482 and either fix it or delete it. --- Jim Blandy, Mar 1999 */
4483
4484 /* ??? RM: What in hell is this? overload_list_add_symbol expects a symbol,
4485 * not a partial_symbol or a minimal_symbol. And it looks at the type field
4486 * of the symbol, and we don't know the type of minimal and partial symbols
4487 */
4488#if 0
c906108c
SS
4489 /* Look through the partial symtabs for all symbols which begin
4490 by matching OLOAD_NAME. Add each one that you find to the list. */
4491
4492 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
4493 {
4494 /* If the psymtab's been read in we'll get it when we search
4495 through the blockvector. */
4496 if (ps->readin)
4497 continue;
4498
4499 for (psym = objfile->global_psymbols.list + ps->globals_offset;
4500 psym < (objfile->global_psymbols.list + ps->globals_offset
4501 + ps->n_global_syms);
4502 psym++)
4503 {
4504 /* If interrupted, then quit. */
4505 QUIT;
4506 overload_list_add_symbol (*psym, oload_name);
4507 }
4508
4509 for (psym = objfile->static_psymbols.list + ps->statics_offset;
4510 psym < (objfile->static_psymbols.list + ps->statics_offset
4511 + ps->n_static_syms);
4512 psym++)
4513 {
4514 QUIT;
4515 overload_list_add_symbol (*psym, oload_name);
4516 }
4517 }
c906108c
SS
4518
4519 /* At this point scan through the misc symbol vectors and add each
4520 symbol you find to the list. Eventually we want to ignore
4521 anything that isn't a text symbol (everything else will be
4522 handled by the psymtab code above). */
4523
4524 ALL_MSYMBOLS (objfile, msymbol)
c5aa993b
JM
4525 {
4526 QUIT;
4527 overload_list_add_symbol (msymbol, oload_name);
4528 }
7a292a7a 4529#endif
c906108c
SS
4530
4531 /* Search upwards from currently selected frame (so that we can
4532 complete on local vars. */
4533
4534 for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
4535 {
4536 if (!BLOCK_SUPERBLOCK (b))
4537 {
c5aa993b 4538 surrounding_static_block = b; /* For elimination of dups */
c906108c 4539 }
c5aa993b 4540
c906108c 4541 /* Also catch fields of types defined in this places which match our
c5aa993b 4542 text string. Only complete on types visible from current context. */
c906108c
SS
4543
4544 for (i = 0; i < BLOCK_NSYMS (b); i++)
4545 {
4546 sym = BLOCK_SYM (b, i);
4547 overload_list_add_symbol (sym, oload_name);
4548 }
4549 }
4550
4551 /* Go through the symtabs and check the externs and statics for
4552 symbols which match. */
4553
4554 ALL_SYMTABS (objfile, s)
c5aa993b
JM
4555 {
4556 QUIT;
4557 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
4558 for (i = 0; i < BLOCK_NSYMS (b); i++)
4559 {
4560 sym = BLOCK_SYM (b, i);
4561 overload_list_add_symbol (sym, oload_name);
4562 }
4563 }
c906108c
SS
4564
4565 ALL_SYMTABS (objfile, s)
c5aa993b
JM
4566 {
4567 QUIT;
4568 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
4569 /* Don't do this block twice. */
4570 if (b == surrounding_static_block)
4571 continue;
4572 for (i = 0; i < BLOCK_NSYMS (b); i++)
4573 {
4574 sym = BLOCK_SYM (b, i);
4575 overload_list_add_symbol (sym, oload_name);
4576 }
4577 }
c906108c
SS
4578
4579 free (oload_name);
4580
4581 return (sym_return_val);
4582}
4583
4584/* End of overload resolution functions */
c906108c 4585\f
c5aa993b 4586
c906108c
SS
4587void
4588_initialize_symtab ()
4589{
4590 add_info ("variables", variables_info,
c5aa993b 4591 "All global and static variable names, or those matching REGEXP.");
c906108c 4592 if (dbx_commands)
c5aa993b
JM
4593 add_com ("whereis", class_info, variables_info,
4594 "All global and static variable names, or those matching REGEXP.");
c906108c
SS
4595
4596 add_info ("functions", functions_info,
4597 "All function names, or those matching REGEXP.");
4598
4599 /* FIXME: This command has at least the following problems:
4600 1. It prints builtin types (in a very strange and confusing fashion).
4601 2. It doesn't print right, e.g. with
c5aa993b
JM
4602 typedef struct foo *FOO
4603 type_print prints "FOO" when we want to make it (in this situation)
4604 print "struct foo *".
c906108c
SS
4605 I also think "ptype" or "whatis" is more likely to be useful (but if
4606 there is much disagreement "info types" can be fixed). */
4607 add_info ("types", types_info,
4608 "All type names, or those matching REGEXP.");
4609
4610#if 0
4611 add_info ("methods", methods_info,
4612 "All method names, or those matching REGEXP::REGEXP.\n\
4613If the class qualifier is omitted, it is assumed to be the current scope.\n\
4614If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
4615are listed.");
4616#endif
4617 add_info ("sources", sources_info,
4618 "Source files in the program.");
4619
4620 add_com ("rbreak", class_breakpoint, rbreak_command,
c5aa993b 4621 "Set a breakpoint for all functions matching REGEXP.");
c906108c
SS
4622
4623 if (xdb_commands)
4624 {
4625 add_com ("lf", class_info, sources_info, "Source files in the program");
4626 add_com ("lg", class_info, variables_info,
c5aa993b 4627 "All global and static variable names, or those matching REGEXP.");
c906108c
SS
4628 }
4629
4630 /* Initialize the one built-in type that isn't language dependent... */
4631 builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0,
4632 "<unknown type>", (struct objfile *) NULL);
4633}