* win32-nat.c (child_create_inferior): Check for proper shell to use here, in
[deliverable/binutils-gdb.git] / gdb / symtab.c
CommitLineData
c906108c 1/* Symbol table lookup for the GNU debugger, GDB.
8926118c
AC
2
3 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
4 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free Software
5 Foundation, Inc.
c906108c 6
c5aa993b 7 This file is part of GDB.
c906108c 8
c5aa993b
JM
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
c906108c 13
c5aa993b
JM
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
c906108c 18
c5aa993b
JM
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
c906108c
SS
23
24#include "defs.h"
25#include "symtab.h"
26#include "gdbtypes.h"
27#include "gdbcore.h"
28#include "frame.h"
29#include "target.h"
30#include "value.h"
31#include "symfile.h"
32#include "objfiles.h"
33#include "gdbcmd.h"
34#include "call-cmds.h"
88987551 35#include "gdb_regex.h"
c906108c
SS
36#include "expression.h"
37#include "language.h"
38#include "demangle.h"
39#include "inferior.h"
c5f0f3d0 40#include "linespec.h"
a7fdf62f 41#include "filenames.h" /* for FILENAME_CMP */
c906108c
SS
42
43#include "obstack.h"
44
45#include <sys/types.h>
46#include <fcntl.h>
47#include "gdb_string.h"
48#include "gdb_stat.h"
49#include <ctype.h>
015a42b4 50#include "cp-abi.h"
c906108c
SS
51
52/* Prototype for one function in parser-defs.h,
53 instead of including that entire file. */
54
a14ed312 55extern char *find_template_name_end (char *);
c906108c
SS
56
57/* Prototypes for local functions */
58
a14ed312 59static void completion_list_add_name (char *, char *, int, char *, char *);
c906108c 60
a14ed312 61static void rbreak_command (char *, int);
c906108c 62
a14ed312 63static void types_info (char *, int);
c906108c 64
a14ed312 65static void functions_info (char *, int);
c906108c 66
a14ed312 67static void variables_info (char *, int);
c906108c 68
a14ed312 69static void sources_info (char *, int);
c906108c 70
a14ed312 71static void output_source_filename (char *, int *);
c906108c 72
a14ed312 73static int find_line_common (struct linetable *, int, int *);
c906108c 74
50641945
FN
75/* This one is used by linespec.c */
76
77char *operator_chars (char *p, char **end);
78
b37bcaa8
KB
79static struct partial_symbol *lookup_partial_symbol (struct partial_symtab *,
80 const char *, int,
81 namespace_enum);
c906108c 82
fba7f19c
EZ
83static struct symbol *lookup_symbol_aux (const char *name, const
84 struct block *block, const
85 namespace_enum namespace, int
86 *is_a_field_of_this, struct
87 symtab **symtab);
88
89
a14ed312 90static struct symbol *find_active_alias (struct symbol *sym, CORE_ADDR addr);
c906108c
SS
91
92/* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
93/* Signals the presence of objects compiled by HP compilers */
94int hp_som_som_object_present = 0;
95
a14ed312 96static void fixup_section (struct general_symbol_info *, struct objfile *);
c906108c 97
a14ed312 98static int file_matches (char *, char **, int);
c906108c 99
a14ed312
KB
100static void print_symbol_info (namespace_enum,
101 struct symtab *, struct symbol *, int, char *);
c906108c 102
a14ed312 103static void print_msymbol_info (struct minimal_symbol *);
c906108c 104
a14ed312 105static void symtab_symbol_info (char *, namespace_enum, int);
c906108c 106
a14ed312 107static void overload_list_add_symbol (struct symbol *sym, char *oload_name);
392a587b 108
a14ed312 109void _initialize_symtab (void);
c906108c
SS
110
111/* */
112
113/* The single non-language-specific builtin type */
114struct type *builtin_type_error;
115
116/* Block in which the most recently searched-for symbol was found.
117 Might be better to make this a parameter to lookup_symbol and
118 value_of_this. */
119
120const struct block *block_found;
121
c906108c
SS
122/* While the C++ support is still in flux, issue a possibly helpful hint on
123 using the new command completion feature on single quoted demangled C++
124 symbols. Remove when loose ends are cleaned up. FIXME -fnf */
125
126static void
fba45db2 127cplusplus_hint (char *name)
c906108c
SS
128{
129 while (*name == '\'')
130 name++;
131 printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name);
132 printf_filtered ("(Note leading single quote.)\n");
133}
134
135/* Check for a symtab of a specific name; first in symtabs, then in
136 psymtabs. *If* there is no '/' in the name, a match after a '/'
137 in the symtab filename will also work. */
138
1b15f1fa
TT
139struct symtab *
140lookup_symtab (const char *name)
c906108c
SS
141{
142 register struct symtab *s;
143 register struct partial_symtab *ps;
c906108c 144 register struct objfile *objfile;
58d370e0
TT
145 char *real_path = NULL;
146
147 /* Here we are interested in canonicalizing an absolute path, not
148 absolutizing a relative path. */
149 if (IS_ABSOLUTE_PATH (name))
150 real_path = gdb_realpath (name);
c906108c 151
c5aa993b 152got_symtab:
c906108c
SS
153
154 /* First, search for an exact match */
155
156 ALL_SYMTABS (objfile, s)
58d370e0 157 {
a7fdf62f 158 if (FILENAME_CMP (name, s->filename) == 0)
58d370e0
TT
159 {
160 xfree (real_path);
161 return s;
162 }
163 /* If the user gave us an absolute path, try to find the file in
164 this symtab and use its absolute path. */
165 if (real_path != NULL)
166 {
167 char *rp = symtab_to_filename (s);
168 if (FILENAME_CMP (real_path, rp) == 0)
169 {
170 xfree (real_path);
171 return s;
172 }
173 }
174 }
175
176 xfree (real_path);
c906108c
SS
177
178 /* Now, search for a matching tail (only if name doesn't have any dirs) */
179
caadab2c 180 if (lbasename (name) == name)
c906108c 181 ALL_SYMTABS (objfile, s)
c5aa993b 182 {
31889e00 183 if (FILENAME_CMP (lbasename (s->filename), name) == 0)
c5aa993b
JM
184 return s;
185 }
c906108c
SS
186
187 /* Same search rules as above apply here, but now we look thru the
188 psymtabs. */
189
190 ps = lookup_partial_symtab (name);
191 if (!ps)
192 return (NULL);
193
c5aa993b 194 if (ps->readin)
c906108c 195 error ("Internal: readin %s pst for `%s' found when no symtab found.",
c5aa993b 196 ps->filename, name);
c906108c
SS
197
198 s = PSYMTAB_TO_SYMTAB (ps);
199
200 if (s)
201 return s;
202
203 /* At this point, we have located the psymtab for this file, but
204 the conversion to a symtab has failed. This usually happens
205 when we are looking up an include file. In this case,
206 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
207 been created. So, we need to run through the symtabs again in
208 order to find the file.
209 XXX - This is a crock, and should be fixed inside of the the
210 symbol parsing routines. */
211 goto got_symtab;
212}
213
c906108c
SS
214/* Lookup the partial symbol table of a source file named NAME.
215 *If* there is no '/' in the name, a match after a '/'
216 in the psymtab filename will also work. */
217
218struct partial_symtab *
1f8cc6db 219lookup_partial_symtab (const char *name)
c906108c
SS
220{
221 register struct partial_symtab *pst;
222 register struct objfile *objfile;
58d370e0
TT
223 char *real_path = NULL;
224
225 /* Here we are interested in canonicalizing an absolute path, not
226 absolutizing a relative path. */
227 if (IS_ABSOLUTE_PATH (name))
228 real_path = gdb_realpath (name);
c5aa993b 229
c906108c 230 ALL_PSYMTABS (objfile, pst)
c5aa993b 231 {
a7fdf62f 232 if (FILENAME_CMP (name, pst->filename) == 0)
c5aa993b 233 {
58d370e0 234 xfree (real_path);
c5aa993b
JM
235 return (pst);
236 }
58d370e0
TT
237 /* If the user gave us an absolute path, try to find the file in
238 this symtab and use its absolute path. */
239 if (real_path != NULL)
240 {
241 if (pst->fullname == NULL)
242 source_full_path_of (pst->filename, &pst->fullname);
243 if (pst->fullname != NULL
244 && FILENAME_CMP (real_path, pst->fullname) == 0)
245 {
246 xfree (real_path);
247 return pst;
248 }
249 }
c5aa993b 250 }
c906108c 251
58d370e0
TT
252 xfree (real_path);
253
c906108c
SS
254 /* Now, search for a matching tail (only if name doesn't have any dirs) */
255
caadab2c 256 if (lbasename (name) == name)
c906108c 257 ALL_PSYMTABS (objfile, pst)
c5aa993b 258 {
31889e00 259 if (FILENAME_CMP (lbasename (pst->filename), name) == 0)
c5aa993b
JM
260 return (pst);
261 }
c906108c
SS
262
263 return (NULL);
264}
265\f
266/* Mangle a GDB method stub type. This actually reassembles the pieces of the
267 full method name, which consist of the class name (from T), the unadorned
268 method name from METHOD_ID, and the signature for the specific overload,
269 specified by SIGNATURE_ID. Note that this function is g++ specific. */
270
271char *
fba45db2 272gdb_mangle_name (struct type *type, int method_id, int signature_id)
c906108c
SS
273{
274 int mangled_name_len;
275 char *mangled_name;
276 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id);
277 struct fn_field *method = &f[signature_id];
278 char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id);
279 char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id);
280 char *newname = type_name_no_tag (type);
281
282 /* Does the form of physname indicate that it is the full mangled name
283 of a constructor (not just the args)? */
284 int is_full_physname_constructor;
285
286 int is_constructor;
015a42b4 287 int is_destructor = is_destructor_name (physname);
c906108c
SS
288 /* Need a new type prefix. */
289 char *const_prefix = method->is_const ? "C" : "";
290 char *volatile_prefix = method->is_volatile ? "V" : "";
291 char buf[20];
292 int len = (newname == NULL ? 0 : strlen (newname));
293
43630227
PS
294 /* Nothing to do if physname already contains a fully mangled v3 abi name
295 or an operator name. */
296 if ((physname[0] == '_' && physname[1] == 'Z')
297 || is_operator_name (field_name))
235d1e03
EZ
298 return xstrdup (physname);
299
015a42b4 300 is_full_physname_constructor = is_constructor_name (physname);
c906108c
SS
301
302 is_constructor =
c5aa993b 303 is_full_physname_constructor || (newname && STREQ (field_name, newname));
c906108c
SS
304
305 if (!is_destructor)
c5aa993b 306 is_destructor = (strncmp (physname, "__dt", 4) == 0);
c906108c
SS
307
308 if (is_destructor || is_full_physname_constructor)
309 {
c5aa993b
JM
310 mangled_name = (char *) xmalloc (strlen (physname) + 1);
311 strcpy (mangled_name, physname);
c906108c
SS
312 return mangled_name;
313 }
314
315 if (len == 0)
316 {
317 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
318 }
319 else if (physname[0] == 't' || physname[0] == 'Q')
320 {
321 /* The physname for template and qualified methods already includes
c5aa993b 322 the class name. */
c906108c
SS
323 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
324 newname = NULL;
325 len = 0;
326 }
327 else
328 {
329 sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len);
330 }
331 mangled_name_len = ((is_constructor ? 0 : strlen (field_name))
235d1e03 332 + strlen (buf) + len + strlen (physname) + 1);
c906108c 333
c906108c 334 {
c5aa993b 335 mangled_name = (char *) xmalloc (mangled_name_len);
c906108c
SS
336 if (is_constructor)
337 mangled_name[0] = '\0';
338 else
339 strcpy (mangled_name, field_name);
340 }
341 strcat (mangled_name, buf);
342 /* If the class doesn't have a name, i.e. newname NULL, then we just
343 mangle it using 0 for the length of the class. Thus it gets mangled
c5aa993b 344 as something starting with `::' rather than `classname::'. */
c906108c
SS
345 if (newname != NULL)
346 strcat (mangled_name, newname);
347
348 strcat (mangled_name, physname);
349 return (mangled_name);
350}
c906108c
SS
351\f
352
c5aa993b 353
c906108c
SS
354/* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
355
356struct partial_symtab *
fba45db2 357find_pc_sect_psymtab (CORE_ADDR pc, asection *section)
c906108c
SS
358{
359 register struct partial_symtab *pst;
360 register struct objfile *objfile;
8a48e967
DJ
361 struct minimal_symbol *msymbol;
362
363 /* If we know that this is not a text address, return failure. This is
364 necessary because we loop based on texthigh and textlow, which do
365 not include the data ranges. */
366 msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
367 if (msymbol
368 && (msymbol->type == mst_data
369 || msymbol->type == mst_bss
370 || msymbol->type == mst_abs
371 || msymbol->type == mst_file_data
372 || msymbol->type == mst_file_bss))
373 return NULL;
c906108c
SS
374
375 ALL_PSYMTABS (objfile, pst)
c5aa993b 376 {
c5aa993b 377 if (pc >= pst->textlow && pc < pst->texthigh)
c5aa993b 378 {
c5aa993b
JM
379 struct partial_symtab *tpst;
380
381 /* An objfile that has its functions reordered might have
382 many partial symbol tables containing the PC, but
383 we want the partial symbol table that contains the
384 function containing the PC. */
385 if (!(objfile->flags & OBJF_REORDERED) &&
386 section == 0) /* can't validate section this way */
387 return (pst);
388
c5aa993b
JM
389 if (msymbol == NULL)
390 return (pst);
391
392 for (tpst = pst; tpst != NULL; tpst = tpst->next)
393 {
c5aa993b 394 if (pc >= tpst->textlow && pc < tpst->texthigh)
c5aa993b
JM
395 {
396 struct partial_symbol *p;
c906108c 397
c5aa993b
JM
398 p = find_pc_sect_psymbol (tpst, pc, section);
399 if (p != NULL
400 && SYMBOL_VALUE_ADDRESS (p)
401 == SYMBOL_VALUE_ADDRESS (msymbol))
402 return (tpst);
403 }
404 }
405 return (pst);
406 }
407 }
c906108c
SS
408 return (NULL);
409}
410
411/* Find which partial symtab contains PC. Return 0 if none.
412 Backward compatibility, no section */
413
414struct partial_symtab *
fba45db2 415find_pc_psymtab (CORE_ADDR pc)
c906108c
SS
416{
417 return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc));
418}
419
420/* Find which partial symbol within a psymtab matches PC and SECTION.
421 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
422
423struct partial_symbol *
fba45db2
KB
424find_pc_sect_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc,
425 asection *section)
c906108c
SS
426{
427 struct partial_symbol *best = NULL, *p, **pp;
428 CORE_ADDR best_pc;
c5aa993b 429
c906108c
SS
430 if (!psymtab)
431 psymtab = find_pc_sect_psymtab (pc, section);
432 if (!psymtab)
433 return 0;
434
435 /* Cope with programs that start at address 0 */
436 best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0;
437
438 /* Search the global symbols as well as the static symbols, so that
439 find_pc_partial_function doesn't use a minimal symbol and thus
440 cache a bad endaddr. */
441 for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset;
c5aa993b
JM
442 (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset)
443 < psymtab->n_global_syms);
c906108c
SS
444 pp++)
445 {
446 p = *pp;
447 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
448 && SYMBOL_CLASS (p) == LOC_BLOCK
449 && pc >= SYMBOL_VALUE_ADDRESS (p)
450 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
451 || (psymtab->textlow == 0
452 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
453 {
c5aa993b 454 if (section) /* match on a specific section */
c906108c
SS
455 {
456 fixup_psymbol_section (p, psymtab->objfile);
457 if (SYMBOL_BFD_SECTION (p) != section)
458 continue;
459 }
460 best_pc = SYMBOL_VALUE_ADDRESS (p);
461 best = p;
462 }
463 }
464
465 for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset;
c5aa993b
JM
466 (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset)
467 < psymtab->n_static_syms);
c906108c
SS
468 pp++)
469 {
470 p = *pp;
471 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
472 && SYMBOL_CLASS (p) == LOC_BLOCK
473 && pc >= SYMBOL_VALUE_ADDRESS (p)
474 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
c5aa993b 475 || (psymtab->textlow == 0
c906108c
SS
476 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
477 {
c5aa993b 478 if (section) /* match on a specific section */
c906108c
SS
479 {
480 fixup_psymbol_section (p, psymtab->objfile);
481 if (SYMBOL_BFD_SECTION (p) != section)
482 continue;
483 }
484 best_pc = SYMBOL_VALUE_ADDRESS (p);
485 best = p;
486 }
487 }
488
489 return best;
490}
491
492/* Find which partial symbol within a psymtab matches PC. Return 0 if none.
493 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
494
495struct partial_symbol *
fba45db2 496find_pc_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc)
c906108c
SS
497{
498 return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc));
499}
500\f
501/* Debug symbols usually don't have section information. We need to dig that
502 out of the minimal symbols and stash that in the debug symbol. */
503
504static void
fba45db2 505fixup_section (struct general_symbol_info *ginfo, struct objfile *objfile)
c906108c
SS
506{
507 struct minimal_symbol *msym;
508 msym = lookup_minimal_symbol (ginfo->name, NULL, objfile);
509
510 if (msym)
7a78d0ee
KB
511 {
512 ginfo->bfd_section = SYMBOL_BFD_SECTION (msym);
513 ginfo->section = SYMBOL_SECTION (msym);
514 }
c906108c
SS
515}
516
517struct symbol *
fba45db2 518fixup_symbol_section (struct symbol *sym, struct objfile *objfile)
c906108c
SS
519{
520 if (!sym)
521 return NULL;
522
523 if (SYMBOL_BFD_SECTION (sym))
524 return sym;
525
526 fixup_section (&sym->ginfo, objfile);
527
528 return sym;
529}
530
7a78d0ee 531struct partial_symbol *
fba45db2 532fixup_psymbol_section (struct partial_symbol *psym, struct objfile *objfile)
c906108c
SS
533{
534 if (!psym)
535 return NULL;
536
537 if (SYMBOL_BFD_SECTION (psym))
538 return psym;
539
540 fixup_section (&psym->ginfo, objfile);
541
542 return psym;
543}
544
545/* Find the definition for a specified symbol name NAME
546 in namespace NAMESPACE, visible from lexical block BLOCK.
547 Returns the struct symbol pointer, or zero if no symbol is found.
548 If SYMTAB is non-NULL, store the symbol table in which the
549 symbol was found there, or NULL if not found.
550 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
551 NAME is a field of the current implied argument `this'. If so set
552 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
553 BLOCK_FOUND is set to the block in which NAME is found (in the case of
554 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
555
556/* This function has a bunch of loops in it and it would seem to be
557 attractive to put in some QUIT's (though I'm not really sure
558 whether it can run long enough to be really important). But there
559 are a few calls for which it would appear to be bad news to quit
560 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
561 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
562 code below which can error(), but that probably doesn't affect
563 these calls since they are looking for a known variable and thus
564 can probably assume it will never hit the C++ code). */
565
566struct symbol *
fba7f19c 567lookup_symbol (const char *name, const struct block *block,
fba45db2
KB
568 const namespace_enum namespace, int *is_a_field_of_this,
569 struct symtab **symtab)
c906108c 570{
fba7f19c
EZ
571 char *modified_name = NULL;
572 char *modified_name2 = NULL;
573 int needtofreename = 0;
574 struct symbol *returnval;
c906108c 575
63872f9d
JG
576 if (case_sensitivity == case_sensitive_off)
577 {
578 char *copy;
579 int len, i;
580
581 len = strlen (name);
582 copy = (char *) alloca (len + 1);
583 for (i= 0; i < len; i++)
584 copy[i] = tolower (name[i]);
585 copy[len] = 0;
fba7f19c 586 modified_name = copy;
63872f9d 587 }
fba7f19c
EZ
588 else
589 modified_name = (char *) name;
590
591 /* If we are using C++ language, demangle the name before doing a lookup, so
592 we can always binary search. */
593 if (current_language->la_language == language_cplus)
594 {
595 modified_name2 = cplus_demangle (modified_name, DMGL_ANSI | DMGL_PARAMS);
596 if (modified_name2)
597 {
598 modified_name = modified_name2;
599 needtofreename = 1;
600 }
601 }
602
603 returnval = lookup_symbol_aux (modified_name, block, namespace,
604 is_a_field_of_this, symtab);
605 if (needtofreename)
b8c9b27d 606 xfree (modified_name2);
fba7f19c
EZ
607
608 return returnval;
609}
610
611static struct symbol *
612lookup_symbol_aux (const char *name, const struct block *block,
613 const namespace_enum namespace, int *is_a_field_of_this,
614 struct symtab **symtab)
615{
616 register struct symbol *sym;
617 register struct symtab *s = NULL;
618 register struct partial_symtab *ps;
619 register struct blockvector *bv;
620 register struct objfile *objfile = NULL;
621 register struct block *b;
622 register struct minimal_symbol *msymbol;
623
63872f9d 624
c906108c
SS
625 /* Search specified block and its superiors. */
626
627 while (block != 0)
628 {
629 sym = lookup_block_symbol (block, name, namespace);
c5aa993b 630 if (sym)
c906108c
SS
631 {
632 block_found = block;
633 if (symtab != NULL)
634 {
635 /* Search the list of symtabs for one which contains the
c5aa993b 636 address of the start of this block. */
c906108c 637 ALL_SYMTABS (objfile, s)
c5aa993b
JM
638 {
639 bv = BLOCKVECTOR (s);
640 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
641 if (BLOCK_START (b) <= BLOCK_START (block)
642 && BLOCK_END (b) > BLOCK_START (block))
643 goto found;
644 }
645 found:
c906108c
SS
646 *symtab = s;
647 }
648
649 return fixup_symbol_section (sym, objfile);
650 }
651 block = BLOCK_SUPERBLOCK (block);
652 }
653
654 /* FIXME: this code is never executed--block is always NULL at this
655 point. What is it trying to do, anyway? We already should have
656 checked the STATIC_BLOCK above (it is the superblock of top-level
657 blocks). Why is VAR_NAMESPACE special-cased? */
658 /* Don't need to mess with the psymtabs; if we have a block,
659 that file is read in. If we don't, then we deal later with
660 all the psymtab stuff that needs checking. */
661 /* Note (RT): The following never-executed code looks unnecessary to me also.
662 * If we change the code to use the original (passed-in)
663 * value of 'block', we could cause it to execute, but then what
664 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
665 * 'block' was already searched by the above code. And the STATIC_BLOCK's
666 * of *other* symtabs (those files not containing 'block' lexically)
667 * should not contain 'block' address-wise. So we wouldn't expect this
668 * code to find any 'sym''s that were not found above. I vote for
669 * deleting the following paragraph of code.
670 */
671 if (namespace == VAR_NAMESPACE && block != NULL)
672 {
673 struct block *b;
674 /* Find the right symtab. */
675 ALL_SYMTABS (objfile, s)
c5aa993b
JM
676 {
677 bv = BLOCKVECTOR (s);
678 b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
679 if (BLOCK_START (b) <= BLOCK_START (block)
680 && BLOCK_END (b) > BLOCK_START (block))
681 {
682 sym = lookup_block_symbol (b, name, VAR_NAMESPACE);
683 if (sym)
684 {
685 block_found = b;
686 if (symtab != NULL)
687 *symtab = s;
688 return fixup_symbol_section (sym, objfile);
689 }
690 }
691 }
c906108c
SS
692 }
693
694
695 /* C++: If requested to do so by the caller,
696 check to see if NAME is a field of `this'. */
697 if (is_a_field_of_this)
698 {
699 struct value *v = value_of_this (0);
c5aa993b 700
c906108c
SS
701 *is_a_field_of_this = 0;
702 if (v && check_field (v, name))
703 {
704 *is_a_field_of_this = 1;
705 if (symtab != NULL)
706 *symtab = NULL;
707 return NULL;
708 }
709 }
710
711 /* Now search all global blocks. Do the symtab's first, then
712 check the psymtab's. If a psymtab indicates the existence
713 of the desired name as a global, then do psymtab-to-symtab
714 conversion on the fly and return the found symbol. */
c5aa993b 715
c906108c 716 ALL_SYMTABS (objfile, s)
c5aa993b
JM
717 {
718 bv = BLOCKVECTOR (s);
719 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
720 sym = lookup_block_symbol (block, name, namespace);
721 if (sym)
722 {
723 block_found = block;
724 if (symtab != NULL)
725 *symtab = s;
726 return fixup_symbol_section (sym, objfile);
727 }
728 }
c906108c
SS
729
730#ifndef HPUXHPPA
731
732 /* Check for the possibility of the symbol being a function or
733 a mangled variable that is stored in one of the minimal symbol tables.
734 Eventually, all global symbols might be resolved in this way. */
c5aa993b 735
c906108c
SS
736 if (namespace == VAR_NAMESPACE)
737 {
738 msymbol = lookup_minimal_symbol (name, NULL, NULL);
739 if (msymbol != NULL)
740 {
741 s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol),
c5aa993b 742 SYMBOL_BFD_SECTION (msymbol));
c906108c
SS
743 if (s != NULL)
744 {
745 /* This is a function which has a symtab for its address. */
746 bv = BLOCKVECTOR (s);
747 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
748 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
749 namespace);
c5aa993b
JM
750 /* We kept static functions in minimal symbol table as well as
751 in static scope. We want to find them in the symbol table. */
752 if (!sym)
753 {
c906108c
SS
754 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
755 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
756 namespace);
757 }
758
759 /* sym == 0 if symbol was found in the minimal symbol table
c5aa993b
JM
760 but not in the symtab.
761 Return 0 to use the msymbol definition of "foo_".
c906108c 762
c5aa993b
JM
763 This happens for Fortran "foo_" symbols,
764 which are "foo" in the symtab.
c906108c 765
c5aa993b
JM
766 This can also happen if "asm" is used to make a
767 regular symbol but not a debugging symbol, e.g.
768 asm(".globl _main");
769 asm("_main:");
770 */
c906108c
SS
771
772 if (symtab != NULL)
773 *symtab = s;
774 return fixup_symbol_section (sym, objfile);
775 }
776 else if (MSYMBOL_TYPE (msymbol) != mst_text
777 && MSYMBOL_TYPE (msymbol) != mst_file_text
778 && !STREQ (name, SYMBOL_NAME (msymbol)))
779 {
780 /* This is a mangled variable, look it up by its
c5aa993b 781 mangled name. */
5dbd9048
JB
782 return lookup_symbol_aux (SYMBOL_NAME (msymbol), block,
783 namespace, is_a_field_of_this, symtab);
c906108c
SS
784 }
785 /* There are no debug symbols for this file, or we are looking
786 for an unmangled variable.
787 Try to find a matching static symbol below. */
788 }
789 }
c5aa993b 790
c906108c
SS
791#endif
792
793 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
794 {
795 if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace))
796 {
797 s = PSYMTAB_TO_SYMTAB (ps);
798 bv = BLOCKVECTOR (s);
799 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
800 sym = lookup_block_symbol (block, name, namespace);
801 if (!sym)
802 {
803 /* This shouldn't be necessary, but as a last resort
804 * try looking in the statics even though the psymtab
805 * claimed the symbol was global. It's possible that
806 * the psymtab gets it wrong in some cases.
807 */
808 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
809 sym = lookup_block_symbol (block, name, namespace);
810 if (!sym)
811 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
c906108c
SS
812%s may be an inlined function, or may be a template function\n\
813(if a template, try specifying an instantiation: %s<type>).",
c5aa993b
JM
814 name, ps->filename, name, name);
815 }
816 if (symtab != NULL)
817 *symtab = s;
818 return fixup_symbol_section (sym, objfile);
819 }
820 }
c906108c
SS
821
822 /* Now search all static file-level symbols.
823 Not strictly correct, but more useful than an error.
824 Do the symtabs first, then check the psymtabs.
825 If a psymtab indicates the existence
826 of the desired name as a file-level static, then do psymtab-to-symtab
827 conversion on the fly and return the found symbol. */
828
829 ALL_SYMTABS (objfile, s)
c5aa993b
JM
830 {
831 bv = BLOCKVECTOR (s);
832 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
833 sym = lookup_block_symbol (block, name, namespace);
834 if (sym)
835 {
836 block_found = block;
837 if (symtab != NULL)
838 *symtab = s;
839 return fixup_symbol_section (sym, objfile);
840 }
841 }
c906108c
SS
842
843 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
844 {
845 if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace))
846 {
847 s = PSYMTAB_TO_SYMTAB (ps);
848 bv = BLOCKVECTOR (s);
849 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
850 sym = lookup_block_symbol (block, name, namespace);
851 if (!sym)
852 {
853 /* This shouldn't be necessary, but as a last resort
854 * try looking in the globals even though the psymtab
855 * claimed the symbol was static. It's possible that
856 * the psymtab gets it wrong in some cases.
857 */
858 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
859 sym = lookup_block_symbol (block, name, namespace);
860 if (!sym)
861 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
c906108c
SS
862%s may be an inlined function, or may be a template function\n\
863(if a template, try specifying an instantiation: %s<type>).",
c5aa993b
JM
864 name, ps->filename, name, name);
865 }
866 if (symtab != NULL)
867 *symtab = s;
868 return fixup_symbol_section (sym, objfile);
869 }
870 }
c906108c
SS
871
872#ifdef HPUXHPPA
873
874 /* Check for the possibility of the symbol being a function or
875 a global variable that is stored in one of the minimal symbol tables.
876 The "minimal symbol table" is built from linker-supplied info.
877
878 RT: I moved this check to last, after the complete search of
879 the global (p)symtab's and static (p)symtab's. For HP-generated
880 symbol tables, this check was causing a premature exit from
881 lookup_symbol with NULL return, and thus messing up symbol lookups
882 of things like "c::f". It seems to me a check of the minimal
883 symbol table ought to be a last resort in any case. I'm vaguely
884 worried about the comment below which talks about FORTRAN routines "foo_"
885 though... is it saying we need to do the "minsym" check before
886 the static check in this case?
887 */
c5aa993b 888
c906108c
SS
889 if (namespace == VAR_NAMESPACE)
890 {
891 msymbol = lookup_minimal_symbol (name, NULL, NULL);
892 if (msymbol != NULL)
893 {
c5aa993b
JM
894 /* OK, we found a minimal symbol in spite of not
895 * finding any symbol. There are various possible
896 * explanations for this. One possibility is the symbol
897 * exists in code not compiled -g. Another possibility
898 * is that the 'psymtab' isn't doing its job.
899 * A third possibility, related to #2, is that we were confused
900 * by name-mangling. For instance, maybe the psymtab isn't
901 * doing its job because it only know about demangled
902 * names, but we were given a mangled name...
903 */
904
905 /* We first use the address in the msymbol to try to
906 * locate the appropriate symtab. Note that find_pc_symtab()
907 * has a side-effect of doing psymtab-to-symtab expansion,
908 * for the found symtab.
909 */
c906108c
SS
910 s = find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol));
911 if (s != NULL)
912 {
913 bv = BLOCKVECTOR (s);
914 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
915 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
916 namespace);
c5aa993b
JM
917 /* We kept static functions in minimal symbol table as well as
918 in static scope. We want to find them in the symbol table. */
919 if (!sym)
920 {
c906108c
SS
921 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
922 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
923 namespace);
924 }
c5aa993b
JM
925 /* If we found one, return it */
926 if (sym)
927 {
928 if (symtab != NULL)
929 *symtab = s;
930 return sym;
931 }
c906108c
SS
932
933 /* If we get here with sym == 0, the symbol was
c5aa993b
JM
934 found in the minimal symbol table
935 but not in the symtab.
936 Fall through and return 0 to use the msymbol
937 definition of "foo_".
938 (Note that outer code generally follows up a call
939 to this routine with a call to lookup_minimal_symbol(),
940 so a 0 return means we'll just flow into that other routine).
941
942 This happens for Fortran "foo_" symbols,
943 which are "foo" in the symtab.
944
945 This can also happen if "asm" is used to make a
946 regular symbol but not a debugging symbol, e.g.
947 asm(".globl _main");
948 asm("_main:");
949 */
c906108c
SS
950 }
951
c5aa993b
JM
952 /* If the lookup-by-address fails, try repeating the
953 * entire lookup process with the symbol name from
954 * the msymbol (if different from the original symbol name).
955 */
c906108c
SS
956 else if (MSYMBOL_TYPE (msymbol) != mst_text
957 && MSYMBOL_TYPE (msymbol) != mst_file_text
958 && !STREQ (name, SYMBOL_NAME (msymbol)))
959 {
23cc649f
EZ
960 return lookup_symbol_aux (SYMBOL_NAME (msymbol), block,
961 namespace, is_a_field_of_this, symtab);
c906108c
SS
962 }
963 }
964 }
965
966#endif
967
968 if (symtab != NULL)
969 *symtab = NULL;
970 return 0;
971}
357e46e7 972
c906108c
SS
973/* Look, in partial_symtab PST, for symbol NAME. Check the global
974 symbols if GLOBAL, the static symbols if not */
975
976static struct partial_symbol *
fba45db2
KB
977lookup_partial_symbol (struct partial_symtab *pst, const char *name, int global,
978 namespace_enum namespace)
c906108c 979{
357e46e7 980 struct partial_symbol *temp;
c906108c
SS
981 struct partial_symbol **start, **psym;
982 struct partial_symbol **top, **bottom, **center;
983 int length = (global ? pst->n_global_syms : pst->n_static_syms);
984 int do_linear_search = 1;
357e46e7 985
c906108c
SS
986 if (length == 0)
987 {
988 return (NULL);
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);
357e46e7 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))
e1e9e218 1009 internal_error (__FILE__, __LINE__, "failed internal consistency check");
c906108c 1010 if (!do_linear_search
357e46e7 1011 && (SYMBOL_LANGUAGE (*center) == language_java))
c906108c
SS
1012 {
1013 do_linear_search = 1;
1014 }
494b7ec9 1015 if (strcmp (SYMBOL_SOURCE_NAME (*center), name) >= 0)
c906108c
SS
1016 {
1017 top = center;
1018 }
1019 else
1020 {
1021 bottom = center + 1;
1022 }
1023 }
1024 if (!(top == bottom))
e1e9e218 1025 internal_error (__FILE__, __LINE__, "failed internal consistency check");
357e46e7
DB
1026
1027 /* djb - 2000-06-03 - Use SYMBOL_MATCHES_NAME, not a strcmp, so
1028 we don't have to force a linear search on C++. Probably holds true
1029 for JAVA as well, no way to check.*/
1030 while (SYMBOL_MATCHES_NAME (*top,name))
c906108c
SS
1031 {
1032 if (SYMBOL_NAMESPACE (*top) == namespace)
1033 {
357e46e7 1034 return (*top);
c906108c 1035 }
c5aa993b 1036 top++;
c906108c
SS
1037 }
1038 }
1039
1040 /* Can't use a binary search or else we found during the binary search that
1041 we should also do a linear search. */
1042
1043 if (do_linear_search)
357e46e7 1044 {
c906108c
SS
1045 for (psym = start; psym < start + length; psym++)
1046 {
1047 if (namespace == SYMBOL_NAMESPACE (*psym))
1048 {
1049 if (SYMBOL_MATCHES_NAME (*psym, name))
1050 {
1051 return (*psym);
1052 }
1053 }
1054 }
1055 }
1056
1057 return (NULL);
1058}
1059
1060/* Look up a type named NAME in the struct_namespace. The type returned
1061 must not be opaque -- i.e., must have at least one field defined
1062
1063 This code was modelled on lookup_symbol -- the parts not relevant to looking
1064 up types were just left out. In particular it's assumed here that types
1065 are available in struct_namespace and only at file-static or global blocks. */
1066
1067
1068struct type *
fba45db2 1069lookup_transparent_type (const char *name)
c906108c
SS
1070{
1071 register struct symbol *sym;
1072 register struct symtab *s = NULL;
1073 register struct partial_symtab *ps;
1074 struct blockvector *bv;
1075 register struct objfile *objfile;
1076 register struct block *block;
c906108c
SS
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 *
fba45db2 1177find_main_psymtab (void)
c906108c
SS
1178{
1179 register struct partial_symtab *pst;
1180 register struct objfile *objfile;
1181
1182 ALL_PSYMTABS (objfile, pst)
c5aa993b 1183 {
51cc5b07 1184 if (lookup_partial_symbol (pst, main_name (), 1, VAR_NAMESPACE))
c5aa993b
JM
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 *
fba45db2
KB
1204lookup_block_symbol (register const struct block *block, const char *name,
1205 const namespace_enum namespace)
c906108c
SS
1206{
1207 register int bot, top, inc;
1208 register struct symbol *sym;
1209 register struct symbol *sym_found = NULL;
1210 register int do_linear_search = 1;
1211
1212 /* If the blocks's symbols were sorted, start with a binary search. */
1213
1214 if (BLOCK_SHOULD_SORT (block))
1215 {
1216 /* Reset the linear search flag so if the binary search fails, we
c5aa993b 1217 won't do the linear search once unless we find some reason to
fba7f19c 1218 do so */
c906108c
SS
1219
1220 do_linear_search = 0;
1221 top = BLOCK_NSYMS (block);
1222 bot = 0;
1223
1224 /* Advance BOT to not far before the first symbol whose name is NAME. */
1225
1226 while (1)
1227 {
1228 inc = (top - bot + 1);
1229 /* No need to keep binary searching for the last few bits worth. */
1230 if (inc < 4)
1231 {
1232 break;
1233 }
1234 inc = (inc >> 1) + bot;
1235 sym = BLOCK_SYM (block, inc);
fba7f19c 1236 if (!do_linear_search && (SYMBOL_LANGUAGE (sym) == language_java))
c906108c
SS
1237 {
1238 do_linear_search = 1;
1239 }
fba7f19c 1240 if (SYMBOL_SOURCE_NAME (sym)[0] < name[0])
c906108c
SS
1241 {
1242 bot = inc;
1243 }
fba7f19c 1244 else if (SYMBOL_SOURCE_NAME (sym)[0] > name[0])
c906108c
SS
1245 {
1246 top = inc;
1247 }
494b7ec9 1248 else if (strcmp (SYMBOL_SOURCE_NAME (sym), name) < 0)
c906108c
SS
1249 {
1250 bot = inc;
1251 }
1252 else
1253 {
1254 top = inc;
1255 }
1256 }
1257
1258 /* Now scan forward until we run out of symbols, find one whose
c5aa993b
JM
1259 name is greater than NAME, or find one we want. If there is
1260 more than one symbol with the right name and namespace, we
1261 return the first one; I believe it is now impossible for us
1262 to encounter two symbols with the same name and namespace
1263 here, because blocks containing argument symbols are no
1264 longer sorted. */
c906108c
SS
1265
1266 top = BLOCK_NSYMS (block);
1267 while (bot < top)
1268 {
1269 sym = BLOCK_SYM (block, bot);
c9049fc9
MC
1270 if (SYMBOL_NAMESPACE (sym) == namespace &&
1271 SYMBOL_MATCHES_NAME (sym, name))
1272 {
1273 return sym;
1274 }
1ba7c32c
JM
1275 if (SYMBOL_SOURCE_NAME (sym)[0] > name[0])
1276 {
1277 break;
1278 }
c906108c
SS
1279 bot++;
1280 }
1281 }
1282
1283 /* Here if block isn't sorted, or we fail to find a match during the
1284 binary search above. If during the binary search above, we find a
8cc1c882 1285 symbol which is a Java symbol, then we have re-enabled the linear
c906108c
SS
1286 search flag which was reset when starting the binary search.
1287
1288 This loop is equivalent to the loop above, but hacked greatly for speed.
1289
1290 Note that parameter symbols do not always show up last in the
1291 list; this loop makes sure to take anything else other than
1292 parameter symbols first; it only uses parameter symbols as a
1293 last resort. Note that this only takes up extra computation
1294 time on a match. */
1295
1296 if (do_linear_search)
1297 {
1298 top = BLOCK_NSYMS (block);
1299 bot = 0;
1300 while (bot < top)
1301 {
1302 sym = BLOCK_SYM (block, bot);
1303 if (SYMBOL_NAMESPACE (sym) == namespace &&
1304 SYMBOL_MATCHES_NAME (sym, name))
1305 {
1306 /* If SYM has aliases, then use any alias that is active
c5aa993b
JM
1307 at the current PC. If no alias is active at the current
1308 PC, then use the main symbol.
c906108c 1309
c5aa993b 1310 ?!? Is checking the current pc correct? Is this routine
a0b3c4fd
JM
1311 ever called to look up a symbol from another context?
1312
1313 FIXME: No, it's not correct. If someone sets a
1314 conditional breakpoint at an address, then the
1315 breakpoint's `struct expression' should refer to the
1316 `struct symbol' appropriate for the breakpoint's
1317 address, which may not be the PC.
1318
1319 Even if it were never called from another context,
1320 it's totally bizarre for lookup_symbol's behavior to
1321 depend on the value of the inferior's current PC. We
1322 should pass in the appropriate PC as well as the
1323 block. The interface to lookup_symbol should change
1324 to require the caller to provide a PC. */
1325
c5aa993b
JM
1326 if (SYMBOL_ALIASES (sym))
1327 sym = find_active_alias (sym, read_pc ());
c906108c
SS
1328
1329 sym_found = sym;
1330 if (SYMBOL_CLASS (sym) != LOC_ARG &&
1331 SYMBOL_CLASS (sym) != LOC_LOCAL_ARG &&
1332 SYMBOL_CLASS (sym) != LOC_REF_ARG &&
1333 SYMBOL_CLASS (sym) != LOC_REGPARM &&
1334 SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR &&
1335 SYMBOL_CLASS (sym) != LOC_BASEREG_ARG)
1336 {
1337 break;
1338 }
1339 }
1340 bot++;
1341 }
1342 }
1343 return (sym_found); /* Will be NULL if not found. */
1344}
1345
1346/* Given a main symbol SYM and ADDR, search through the alias
1347 list to determine if an alias is active at ADDR and return
1348 the active alias.
1349
1350 If no alias is active, then return SYM. */
1351
1352static struct symbol *
fba45db2 1353find_active_alias (struct symbol *sym, CORE_ADDR addr)
c906108c
SS
1354{
1355 struct range_list *r;
1356 struct alias_list *aliases;
1357
1358 /* If we have aliases, check them first. */
1359 aliases = SYMBOL_ALIASES (sym);
1360
1361 while (aliases)
1362 {
1363 if (!SYMBOL_RANGES (aliases->sym))
c5aa993b 1364 return aliases->sym;
c906108c
SS
1365 for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next)
1366 {
1367 if (r->start <= addr && r->end > addr)
1368 return aliases->sym;
1369 }
1370 aliases = aliases->next;
1371 }
1372
1373 /* Nothing found, return the main symbol. */
1374 return sym;
1375}
c906108c 1376\f
c5aa993b 1377
c906108c
SS
1378/* Return the symbol for the function which contains a specified
1379 lexical block, described by a struct block BL. */
1380
1381struct symbol *
fba45db2 1382block_function (struct block *bl)
c906108c
SS
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 *
fba45db2 1394find_pc_sect_symtab (CORE_ADDR pc, asection *section)
c906108c
SS
1395{
1396 register struct block *b;
1397 struct blockvector *bv;
1398 register struct symtab *s = NULL;
1399 register struct symtab *best_s = NULL;
1400 register struct partial_symtab *ps;
1401 register struct objfile *objfile;
1402 CORE_ADDR distance = 0;
8a48e967
DJ
1403 struct minimal_symbol *msymbol;
1404
1405 /* If we know that this is not a text address, return failure. This is
1406 necessary because we loop based on the block's high and low code
1407 addresses, which do not include the data ranges, and because
1408 we call find_pc_sect_psymtab which has a similar restriction based
1409 on the partial_symtab's texthigh and textlow. */
1410 msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
1411 if (msymbol
1412 && (msymbol->type == mst_data
1413 || msymbol->type == mst_bss
1414 || msymbol->type == mst_abs
1415 || msymbol->type == mst_file_data
1416 || msymbol->type == mst_file_bss))
1417 return NULL;
c906108c
SS
1418
1419 /* Search all symtabs for the one whose file contains our address, and which
1420 is the smallest of all the ones containing the address. This is designed
1421 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1422 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1423 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1424
1425 This happens for native ecoff format, where code from included files
1426 gets its own symtab. The symtab for the included file should have
1427 been read in already via the dependency mechanism.
1428 It might be swifter to create several symtabs with the same name
1429 like xcoff does (I'm not sure).
1430
1431 It also happens for objfiles that have their functions reordered.
1432 For these, the symtab we are looking for is not necessarily read in. */
1433
1434 ALL_SYMTABS (objfile, s)
c5aa993b
JM
1435 {
1436 bv = BLOCKVECTOR (s);
1437 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
c906108c 1438
c5aa993b 1439 if (BLOCK_START (b) <= pc
c5aa993b 1440 && BLOCK_END (b) > pc
c5aa993b
JM
1441 && (distance == 0
1442 || BLOCK_END (b) - BLOCK_START (b) < distance))
1443 {
1444 /* For an objfile that has its functions reordered,
1445 find_pc_psymtab will find the proper partial symbol table
1446 and we simply return its corresponding symtab. */
1447 /* In order to better support objfiles that contain both
1448 stabs and coff debugging info, we continue on if a psymtab
1449 can't be found. */
1450 if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs)
1451 {
1452 ps = find_pc_sect_psymtab (pc, section);
1453 if (ps)
1454 return PSYMTAB_TO_SYMTAB (ps);
1455 }
1456 if (section != 0)
1457 {
1458 int i;
c906108c 1459
c5aa993b
JM
1460 for (i = 0; i < b->nsyms; i++)
1461 {
1462 fixup_symbol_section (b->sym[i], objfile);
1463 if (section == SYMBOL_BFD_SECTION (b->sym[i]))
1464 break;
1465 }
1466 if (i >= b->nsyms)
1467 continue; /* no symbol in this symtab matches section */
1468 }
1469 distance = BLOCK_END (b) - BLOCK_START (b);
1470 best_s = s;
1471 }
1472 }
c906108c
SS
1473
1474 if (best_s != NULL)
c5aa993b 1475 return (best_s);
c906108c
SS
1476
1477 s = NULL;
1478 ps = find_pc_sect_psymtab (pc, section);
1479 if (ps)
1480 {
1481 if (ps->readin)
1482 /* Might want to error() here (in case symtab is corrupt and
1483 will cause a core dump), but maybe we can successfully
1484 continue, so let's not. */
c906108c 1485 warning ("\
d730266b
AC
1486(Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n",
1487 paddr_nz (pc));
c906108c
SS
1488 s = PSYMTAB_TO_SYMTAB (ps);
1489 }
1490 return (s);
1491}
1492
1493/* Find the symtab associated with PC. Look through the psymtabs and
1494 read in another symtab if necessary. Backward compatibility, no section */
1495
1496struct symtab *
fba45db2 1497find_pc_symtab (CORE_ADDR pc)
c906108c
SS
1498{
1499 return find_pc_sect_symtab (pc, find_pc_mapped_section (pc));
1500}
c906108c 1501\f
c5aa993b 1502
c906108c
SS
1503#if 0
1504
1505/* Find the closest symbol value (of any sort -- function or variable)
1506 for a given address value. Slow but complete. (currently unused,
1507 mainly because it is too slow. We could fix it if each symtab and
1508 psymtab had contained in it the addresses ranges of each of its
1509 sections, which also would be required to make things like "info
1510 line *0x2345" cause psymtabs to be converted to symtabs). */
1511
1512struct symbol *
fba45db2 1513find_addr_symbol (CORE_ADDR addr, struct symtab **symtabp, CORE_ADDR *symaddrp)
c906108c
SS
1514{
1515 struct symtab *symtab, *best_symtab;
1516 struct objfile *objfile;
1517 register int bot, top;
1518 register struct symbol *sym;
1519 register CORE_ADDR sym_addr;
1520 struct block *block;
1521 int blocknum;
1522
1523 /* Info on best symbol seen so far */
1524
1525 register CORE_ADDR best_sym_addr = 0;
1526 struct symbol *best_sym = 0;
1527
1528 /* FIXME -- we should pull in all the psymtabs, too! */
1529 ALL_SYMTABS (objfile, symtab)
c5aa993b
JM
1530 {
1531 /* Search the global and static blocks in this symtab for
1532 the closest symbol-address to the desired address. */
c906108c 1533
c5aa993b
JM
1534 for (blocknum = GLOBAL_BLOCK; blocknum <= STATIC_BLOCK; blocknum++)
1535 {
1536 QUIT;
1537 block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), blocknum);
1538 top = BLOCK_NSYMS (block);
1539 for (bot = 0; bot < top; bot++)
1540 {
1541 sym = BLOCK_SYM (block, bot);
1542 switch (SYMBOL_CLASS (sym))
1543 {
1544 case LOC_STATIC:
1545 case LOC_LABEL:
1546 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1547 break;
1548
1549 case LOC_INDIRECT:
1550 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1551 /* An indirect symbol really lives at *sym_addr,
1552 * so an indirection needs to be done.
1553 * However, I am leaving this commented out because it's
1554 * expensive, and it's possible that symbolization
1555 * could be done without an active process (in
1556 * case this read_memory will fail). RT
1557 sym_addr = read_memory_unsigned_integer
1558 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1559 */
1560 break;
c906108c 1561
c5aa993b
JM
1562 case LOC_BLOCK:
1563 sym_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
1564 break;
c906108c 1565
c5aa993b
JM
1566 default:
1567 continue;
1568 }
c906108c 1569
c5aa993b
JM
1570 if (sym_addr <= addr)
1571 if (sym_addr > best_sym_addr)
1572 {
1573 /* Quit if we found an exact match. */
1574 best_sym = sym;
1575 best_sym_addr = sym_addr;
1576 best_symtab = symtab;
1577 if (sym_addr == addr)
1578 goto done;
1579 }
1580 }
1581 }
1582 }
c906108c 1583
c5aa993b 1584done:
c906108c
SS
1585 if (symtabp)
1586 *symtabp = best_symtab;
1587 if (symaddrp)
1588 *symaddrp = best_sym_addr;
1589 return best_sym;
1590}
1591#endif /* 0 */
1592
7e73cedf 1593/* Find the source file and line number for a given PC value and SECTION.
c906108c
SS
1594 Return a structure containing a symtab pointer, a line number,
1595 and a pc range for the entire source line.
1596 The value's .pc field is NOT the specified pc.
1597 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1598 use the line that ends there. Otherwise, in that case, the line
1599 that begins there is used. */
1600
1601/* The big complication here is that a line may start in one file, and end just
1602 before the start of another file. This usually occurs when you #include
1603 code in the middle of a subroutine. To properly find the end of a line's PC
1604 range, we must search all symtabs associated with this compilation unit, and
1605 find the one whose first PC is closer than that of the next line in this
1606 symtab. */
1607
1608/* If it's worth the effort, we could be using a binary search. */
1609
1610struct symtab_and_line
fba45db2 1611find_pc_sect_line (CORE_ADDR pc, struct sec *section, int notcurrent)
c906108c
SS
1612{
1613 struct symtab *s;
1614 register struct linetable *l;
1615 register int len;
1616 register int i;
1617 register struct linetable_entry *item;
1618 struct symtab_and_line val;
1619 struct blockvector *bv;
1620 struct minimal_symbol *msymbol;
1621 struct minimal_symbol *mfunsym;
1622
1623 /* Info on best line seen so far, and where it starts, and its file. */
1624
1625 struct linetable_entry *best = NULL;
1626 CORE_ADDR best_end = 0;
1627 struct symtab *best_symtab = 0;
1628
1629 /* Store here the first line number
1630 of a file which contains the line at the smallest pc after PC.
1631 If we don't find a line whose range contains PC,
1632 we will use a line one less than this,
1633 with a range from the start of that file to the first line's pc. */
1634 struct linetable_entry *alt = NULL;
1635 struct symtab *alt_symtab = 0;
1636
1637 /* Info on best line seen in this file. */
1638
1639 struct linetable_entry *prev;
1640
1641 /* If this pc is not from the current frame,
1642 it is the address of the end of a call instruction.
1643 Quite likely that is the start of the following statement.
1644 But what we want is the statement containing the instruction.
1645 Fudge the pc to make sure we get that. */
1646
c5aa993b 1647 INIT_SAL (&val); /* initialize to zeroes */
c906108c 1648
b77b1eb7
JB
1649 /* It's tempting to assume that, if we can't find debugging info for
1650 any function enclosing PC, that we shouldn't search for line
1651 number info, either. However, GAS can emit line number info for
1652 assembly files --- very helpful when debugging hand-written
1653 assembly code. In such a case, we'd have no debug info for the
1654 function, but we would have line info. */
648f4f79 1655
c906108c
SS
1656 if (notcurrent)
1657 pc -= 1;
1658
c5aa993b 1659 /* elz: added this because this function returned the wrong
c906108c
SS
1660 information if the pc belongs to a stub (import/export)
1661 to call a shlib function. This stub would be anywhere between
1662 two functions in the target, and the line info was erroneously
1663 taken to be the one of the line before the pc.
c5aa993b 1664 */
c906108c 1665 /* RT: Further explanation:
c5aa993b 1666
c906108c
SS
1667 * We have stubs (trampolines) inserted between procedures.
1668 *
1669 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1670 * exists in the main image.
1671 *
1672 * In the minimal symbol table, we have a bunch of symbols
1673 * sorted by start address. The stubs are marked as "trampoline",
1674 * the others appear as text. E.g.:
1675 *
1676 * Minimal symbol table for main image
1677 * main: code for main (text symbol)
1678 * shr1: stub (trampoline symbol)
1679 * foo: code for foo (text symbol)
1680 * ...
1681 * Minimal symbol table for "shr1" image:
1682 * ...
1683 * shr1: code for shr1 (text symbol)
1684 * ...
1685 *
1686 * So the code below is trying to detect if we are in the stub
1687 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1688 * and if found, do the symbolization from the real-code address
1689 * rather than the stub address.
1690 *
1691 * Assumptions being made about the minimal symbol table:
1692 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1693 * if we're really in the trampoline. If we're beyond it (say
1694 * we're in "foo" in the above example), it'll have a closer
1695 * symbol (the "foo" text symbol for example) and will not
1696 * return the trampoline.
1697 * 2. lookup_minimal_symbol_text() will find a real text symbol
1698 * corresponding to the trampoline, and whose address will
1699 * be different than the trampoline address. I put in a sanity
1700 * check for the address being the same, to avoid an
1701 * infinite recursion.
1702 */
c5aa993b
JM
1703 msymbol = lookup_minimal_symbol_by_pc (pc);
1704 if (msymbol != NULL)
c906108c 1705 if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline)
c5aa993b
JM
1706 {
1707 mfunsym = lookup_minimal_symbol_text (SYMBOL_NAME (msymbol), NULL, NULL);
1708 if (mfunsym == NULL)
1709 /* I eliminated this warning since it is coming out
1710 * in the following situation:
1711 * gdb shmain // test program with shared libraries
1712 * (gdb) break shr1 // function in shared lib
1713 * Warning: In stub for ...
1714 * In the above situation, the shared lib is not loaded yet,
1715 * so of course we can't find the real func/line info,
1716 * but the "break" still works, and the warning is annoying.
1717 * So I commented out the warning. RT */
1718 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1719 /* fall through */
1720 else if (SYMBOL_VALUE (mfunsym) == SYMBOL_VALUE (msymbol))
1721 /* Avoid infinite recursion */
1722 /* See above comment about why warning is commented out */
1723 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1724 /* fall through */
1725 else
1726 return find_pc_line (SYMBOL_VALUE (mfunsym), 0);
1727 }
c906108c
SS
1728
1729
1730 s = find_pc_sect_symtab (pc, section);
1731 if (!s)
1732 {
1733 /* if no symbol information, return previous pc */
1734 if (notcurrent)
1735 pc++;
1736 val.pc = pc;
1737 return val;
1738 }
1739
1740 bv = BLOCKVECTOR (s);
1741
1742 /* Look at all the symtabs that share this blockvector.
1743 They all have the same apriori range, that we found was right;
1744 but they have different line tables. */
1745
1746 for (; s && BLOCKVECTOR (s) == bv; s = s->next)
1747 {
1748 /* Find the best line in this symtab. */
1749 l = LINETABLE (s);
1750 if (!l)
c5aa993b 1751 continue;
c906108c
SS
1752 len = l->nitems;
1753 if (len <= 0)
1754 {
1755 /* I think len can be zero if the symtab lacks line numbers
1756 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1757 I'm not sure which, and maybe it depends on the symbol
1758 reader). */
1759 continue;
1760 }
1761
1762 prev = NULL;
1763 item = l->item; /* Get first line info */
1764
1765 /* Is this file's first line closer than the first lines of other files?
c5aa993b 1766 If so, record this file, and its first line, as best alternate. */
c906108c
SS
1767 if (item->pc > pc && (!alt || item->pc < alt->pc))
1768 {
1769 alt = item;
1770 alt_symtab = s;
1771 }
1772
1773 for (i = 0; i < len; i++, item++)
1774 {
1775 /* Leave prev pointing to the linetable entry for the last line
1776 that started at or before PC. */
1777 if (item->pc > pc)
1778 break;
1779
1780 prev = item;
1781 }
1782
1783 /* At this point, prev points at the line whose start addr is <= pc, and
c5aa993b
JM
1784 item points at the next line. If we ran off the end of the linetable
1785 (pc >= start of the last line), then prev == item. If pc < start of
1786 the first line, prev will not be set. */
c906108c
SS
1787
1788 /* Is this file's best line closer than the best in the other files?
c5aa993b 1789 If so, record this file, and its best line, as best so far. */
c906108c
SS
1790
1791 if (prev && (!best || prev->pc > best->pc))
1792 {
1793 best = prev;
1794 best_symtab = s;
25d53da1
KB
1795
1796 /* Discard BEST_END if it's before the PC of the current BEST. */
1797 if (best_end <= best->pc)
1798 best_end = 0;
c906108c 1799 }
25d53da1
KB
1800
1801 /* If another line (denoted by ITEM) is in the linetable and its
1802 PC is after BEST's PC, but before the current BEST_END, then
1803 use ITEM's PC as the new best_end. */
1804 if (best && i < len && item->pc > best->pc
1805 && (best_end == 0 || best_end > item->pc))
1806 best_end = item->pc;
c906108c
SS
1807 }
1808
1809 if (!best_symtab)
1810 {
1811 if (!alt_symtab)
1812 { /* If we didn't find any line # info, just
1813 return zeros. */
1814 val.pc = pc;
1815 }
1816 else
1817 {
1818 val.symtab = alt_symtab;
1819 val.line = alt->line - 1;
1820
1821 /* Don't return line 0, that means that we didn't find the line. */
c5aa993b
JM
1822 if (val.line == 0)
1823 ++val.line;
c906108c
SS
1824
1825 val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1826 val.end = alt->pc;
1827 }
1828 }
e8717518
FF
1829 else if (best->line == 0)
1830 {
1831 /* If our best fit is in a range of PC's for which no line
1832 number info is available (line number is zero) then we didn't
1833 find any valid line information. */
1834 val.pc = pc;
1835 }
c906108c
SS
1836 else
1837 {
1838 val.symtab = best_symtab;
1839 val.line = best->line;
1840 val.pc = best->pc;
1841 if (best_end && (!alt || best_end < alt->pc))
1842 val.end = best_end;
1843 else if (alt)
1844 val.end = alt->pc;
1845 else
1846 val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1847 }
1848 val.section = section;
1849 return val;
1850}
1851
1852/* Backward compatibility (no section) */
1853
1854struct symtab_and_line
fba45db2 1855find_pc_line (CORE_ADDR pc, int notcurrent)
c906108c 1856{
c5aa993b 1857 asection *section;
c906108c
SS
1858
1859 section = find_pc_overlay (pc);
1860 if (pc_in_unmapped_range (pc, section))
1861 pc = overlay_mapped_address (pc, section);
1862 return find_pc_sect_line (pc, section, notcurrent);
1863}
c906108c 1864\f
c906108c
SS
1865/* Find line number LINE in any symtab whose name is the same as
1866 SYMTAB.
1867
1868 If found, return the symtab that contains the linetable in which it was
1869 found, set *INDEX to the index in the linetable of the best entry
1870 found, and set *EXACT_MATCH nonzero if the value returned is an
1871 exact match.
1872
1873 If not found, return NULL. */
1874
50641945 1875struct symtab *
fba45db2 1876find_line_symtab (struct symtab *symtab, int line, int *index, int *exact_match)
c906108c
SS
1877{
1878 int exact;
1879
1880 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1881 so far seen. */
1882
1883 int best_index;
1884 struct linetable *best_linetable;
1885 struct symtab *best_symtab;
1886
1887 /* First try looking it up in the given symtab. */
1888 best_linetable = LINETABLE (symtab);
1889 best_symtab = symtab;
1890 best_index = find_line_common (best_linetable, line, &exact);
1891 if (best_index < 0 || !exact)
1892 {
1893 /* Didn't find an exact match. So we better keep looking for
c5aa993b
JM
1894 another symtab with the same name. In the case of xcoff,
1895 multiple csects for one source file (produced by IBM's FORTRAN
1896 compiler) produce multiple symtabs (this is unavoidable
1897 assuming csects can be at arbitrary places in memory and that
1898 the GLOBAL_BLOCK of a symtab has a begin and end address). */
c906108c
SS
1899
1900 /* BEST is the smallest linenumber > LINE so far seen,
c5aa993b
JM
1901 or 0 if none has been seen so far.
1902 BEST_INDEX and BEST_LINETABLE identify the item for it. */
c906108c
SS
1903 int best;
1904
1905 struct objfile *objfile;
1906 struct symtab *s;
1907
1908 if (best_index >= 0)
1909 best = best_linetable->item[best_index].line;
1910 else
1911 best = 0;
1912
1913 ALL_SYMTABS (objfile, s)
c5aa993b
JM
1914 {
1915 struct linetable *l;
1916 int ind;
c906108c 1917
c5aa993b
JM
1918 if (!STREQ (symtab->filename, s->filename))
1919 continue;
1920 l = LINETABLE (s);
1921 ind = find_line_common (l, line, &exact);
1922 if (ind >= 0)
1923 {
1924 if (exact)
1925 {
1926 best_index = ind;
1927 best_linetable = l;
1928 best_symtab = s;
1929 goto done;
1930 }
1931 if (best == 0 || l->item[ind].line < best)
1932 {
1933 best = l->item[ind].line;
1934 best_index = ind;
1935 best_linetable = l;
1936 best_symtab = s;
1937 }
1938 }
1939 }
c906108c 1940 }
c5aa993b 1941done:
c906108c
SS
1942 if (best_index < 0)
1943 return NULL;
1944
1945 if (index)
1946 *index = best_index;
1947 if (exact_match)
1948 *exact_match = exact;
1949
1950 return best_symtab;
1951}
1952\f
1953/* Set the PC value for a given source file and line number and return true.
1954 Returns zero for invalid line number (and sets the PC to 0).
1955 The source file is specified with a struct symtab. */
1956
1957int
fba45db2 1958find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc)
c906108c
SS
1959{
1960 struct linetable *l;
1961 int ind;
1962
1963 *pc = 0;
1964 if (symtab == 0)
1965 return 0;
1966
1967 symtab = find_line_symtab (symtab, line, &ind, NULL);
1968 if (symtab != NULL)
1969 {
1970 l = LINETABLE (symtab);
1971 *pc = l->item[ind].pc;
1972 return 1;
1973 }
1974 else
1975 return 0;
1976}
1977
1978/* Find the range of pc values in a line.
1979 Store the starting pc of the line into *STARTPTR
1980 and the ending pc (start of next line) into *ENDPTR.
1981 Returns 1 to indicate success.
1982 Returns 0 if could not find the specified line. */
1983
1984int
fba45db2
KB
1985find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr,
1986 CORE_ADDR *endptr)
c906108c
SS
1987{
1988 CORE_ADDR startaddr;
1989 struct symtab_and_line found_sal;
1990
1991 startaddr = sal.pc;
c5aa993b 1992 if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr))
c906108c
SS
1993 return 0;
1994
1995 /* This whole function is based on address. For example, if line 10 has
1996 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
1997 "info line *0x123" should say the line goes from 0x100 to 0x200
1998 and "info line *0x355" should say the line goes from 0x300 to 0x400.
1999 This also insures that we never give a range like "starts at 0x134
2000 and ends at 0x12c". */
2001
2002 found_sal = find_pc_sect_line (startaddr, sal.section, 0);
2003 if (found_sal.line != sal.line)
2004 {
2005 /* The specified line (sal) has zero bytes. */
2006 *startptr = found_sal.pc;
2007 *endptr = found_sal.pc;
2008 }
2009 else
2010 {
2011 *startptr = found_sal.pc;
2012 *endptr = found_sal.end;
2013 }
2014 return 1;
2015}
2016
2017/* Given a line table and a line number, return the index into the line
2018 table for the pc of the nearest line whose number is >= the specified one.
2019 Return -1 if none is found. The value is >= 0 if it is an index.
2020
2021 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
2022
2023static int
fba45db2
KB
2024find_line_common (register struct linetable *l, register int lineno,
2025 int *exact_match)
c906108c
SS
2026{
2027 register int i;
2028 register int len;
2029
2030 /* BEST is the smallest linenumber > LINENO so far seen,
2031 or 0 if none has been seen so far.
2032 BEST_INDEX identifies the item for it. */
2033
2034 int best_index = -1;
2035 int best = 0;
2036
2037 if (lineno <= 0)
2038 return -1;
2039 if (l == 0)
2040 return -1;
2041
2042 len = l->nitems;
2043 for (i = 0; i < len; i++)
2044 {
2045 register struct linetable_entry *item = &(l->item[i]);
2046
2047 if (item->line == lineno)
2048 {
2049 /* Return the first (lowest address) entry which matches. */
2050 *exact_match = 1;
2051 return i;
2052 }
2053
2054 if (item->line > lineno && (best == 0 || item->line < best))
2055 {
2056 best = item->line;
2057 best_index = i;
2058 }
2059 }
2060
2061 /* If we got here, we didn't get an exact match. */
2062
2063 *exact_match = 0;
2064 return best_index;
2065}
2066
2067int
fba45db2 2068find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr)
c906108c
SS
2069{
2070 struct symtab_and_line sal;
2071 sal = find_pc_line (pc, 0);
2072 *startptr = sal.pc;
2073 *endptr = sal.end;
2074 return sal.symtab != 0;
2075}
2076
2077/* Given a function symbol SYM, find the symtab and line for the start
2078 of the function.
2079 If the argument FUNFIRSTLINE is nonzero, we want the first line
2080 of real code inside the function. */
2081
50641945 2082struct symtab_and_line
fba45db2 2083find_function_start_sal (struct symbol *sym, int funfirstline)
c906108c
SS
2084{
2085 CORE_ADDR pc;
2086 struct symtab_and_line sal;
2087
2088 pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
2089 fixup_symbol_section (sym, NULL);
2090 if (funfirstline)
c5aa993b 2091 { /* skip "first line" of function (which is actually its prologue) */
c906108c
SS
2092 asection *section = SYMBOL_BFD_SECTION (sym);
2093 /* If function is in an unmapped overlay, use its unmapped LMA
c5aa993b 2094 address, so that SKIP_PROLOGUE has something unique to work on */
c906108c
SS
2095 if (section_is_overlay (section) &&
2096 !section_is_mapped (section))
2097 pc = overlay_unmapped_address (pc, section);
2098
2099 pc += FUNCTION_START_OFFSET;
b83266a0 2100 pc = SKIP_PROLOGUE (pc);
c906108c
SS
2101
2102 /* For overlays, map pc back into its mapped VMA range */
2103 pc = overlay_mapped_address (pc, section);
2104 }
2105 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2106
2107#ifdef PROLOGUE_FIRSTLINE_OVERLAP
2108 /* Convex: no need to suppress code on first line, if any */
2109 sal.pc = pc;
2110#else
2111 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2112 line is still part of the same function. */
2113 if (sal.pc != pc
2114 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end
2115 && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym)))
2116 {
2117 /* First pc of next line */
2118 pc = sal.end;
2119 /* Recalculate the line number (might not be N+1). */
2120 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2121 }
2122 sal.pc = pc;
2123#endif
2124
2125 return sal;
2126}
50641945 2127
c906108c
SS
2128/* If P is of the form "operator[ \t]+..." where `...' is
2129 some legitimate operator text, return a pointer to the
2130 beginning of the substring of the operator text.
2131 Otherwise, return "". */
2132char *
fba45db2 2133operator_chars (char *p, char **end)
c906108c
SS
2134{
2135 *end = "";
2136 if (strncmp (p, "operator", 8))
2137 return *end;
2138 p += 8;
2139
2140 /* Don't get faked out by `operator' being part of a longer
2141 identifier. */
c5aa993b 2142 if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0')
c906108c
SS
2143 return *end;
2144
2145 /* Allow some whitespace between `operator' and the operator symbol. */
2146 while (*p == ' ' || *p == '\t')
2147 p++;
2148
2149 /* Recognize 'operator TYPENAME'. */
2150
c5aa993b 2151 if (isalpha (*p) || *p == '_' || *p == '$')
c906108c 2152 {
c5aa993b
JM
2153 register char *q = p + 1;
2154 while (isalnum (*q) || *q == '_' || *q == '$')
c906108c
SS
2155 q++;
2156 *end = q;
2157 return p;
2158 }
2159
53e8ad3d
MS
2160 while (*p)
2161 switch (*p)
2162 {
2163 case '\\': /* regexp quoting */
2164 if (p[1] == '*')
2165 {
2166 if (p[2] == '=') /* 'operator\*=' */
2167 *end = p + 3;
2168 else /* 'operator\*' */
2169 *end = p + 2;
2170 return p;
2171 }
2172 else if (p[1] == '[')
2173 {
2174 if (p[2] == ']')
2175 error ("mismatched quoting on brackets, try 'operator\\[\\]'");
2176 else if (p[2] == '\\' && p[3] == ']')
2177 {
2178 *end = p + 4; /* 'operator\[\]' */
2179 return p;
2180 }
2181 else
2182 error ("nothing is allowed between '[' and ']'");
2183 }
2184 else
2185 {
2186 /* Gratuitous qoute: skip it and move on. */
2187 p++;
2188 continue;
2189 }
2190 break;
2191 case '!':
2192 case '=':
2193 case '*':
2194 case '/':
2195 case '%':
2196 case '^':
2197 if (p[1] == '=')
2198 *end = p + 2;
2199 else
2200 *end = p + 1;
2201 return p;
2202 case '<':
2203 case '>':
2204 case '+':
2205 case '-':
2206 case '&':
2207 case '|':
2208 if (p[0] == '-' && p[1] == '>')
2209 {
2210 /* Struct pointer member operator 'operator->'. */
2211 if (p[2] == '*')
2212 {
2213 *end = p + 3; /* 'operator->*' */
2214 return p;
2215 }
2216 else if (p[2] == '\\')
2217 {
2218 *end = p + 4; /* Hopefully 'operator->\*' */
2219 return p;
2220 }
2221 else
2222 {
2223 *end = p + 2; /* 'operator->' */
2224 return p;
2225 }
2226 }
2227 if (p[1] == '=' || p[1] == p[0])
2228 *end = p + 2;
2229 else
2230 *end = p + 1;
2231 return p;
2232 case '~':
2233 case ',':
c5aa993b 2234 *end = p + 1;
53e8ad3d
MS
2235 return p;
2236 case '(':
2237 if (p[1] != ')')
2238 error ("`operator ()' must be specified without whitespace in `()'");
c5aa993b 2239 *end = p + 2;
53e8ad3d
MS
2240 return p;
2241 case '?':
2242 if (p[1] != ':')
2243 error ("`operator ?:' must be specified without whitespace in `?:'");
2244 *end = p + 2;
2245 return p;
2246 case '[':
2247 if (p[1] != ']')
2248 error ("`operator []' must be specified without whitespace in `[]'");
2249 *end = p + 2;
2250 return p;
2251 default:
2252 error ("`operator %s' not supported", p);
2253 break;
2254 }
2255
c906108c
SS
2256 *end = "";
2257 return *end;
2258}
c906108c 2259\f
c5aa993b 2260
c94fdfd0
EZ
2261/* If FILE is not already in the table of files, return zero;
2262 otherwise return non-zero. Optionally add FILE to the table if ADD
2263 is non-zero. If *FIRST is non-zero, forget the old table
2264 contents. */
2265static int
2266filename_seen (const char *file, int add, int *first)
c906108c 2267{
c94fdfd0
EZ
2268 /* Table of files seen so far. */
2269 static const char **tab = NULL;
c906108c
SS
2270 /* Allocated size of tab in elements.
2271 Start with one 256-byte block (when using GNU malloc.c).
2272 24 is the malloc overhead when range checking is in effect. */
2273 static int tab_alloc_size = (256 - 24) / sizeof (char *);
2274 /* Current size of tab in elements. */
2275 static int tab_cur_size;
c94fdfd0 2276 const char **p;
c906108c
SS
2277
2278 if (*first)
2279 {
2280 if (tab == NULL)
c94fdfd0 2281 tab = (const char **) xmalloc (tab_alloc_size * sizeof (*tab));
c906108c
SS
2282 tab_cur_size = 0;
2283 }
2284
c94fdfd0 2285 /* Is FILE in tab? */
c906108c 2286 for (p = tab; p < tab + tab_cur_size; p++)
c94fdfd0
EZ
2287 if (strcmp (*p, file) == 0)
2288 return 1;
2289
2290 /* No; maybe add it to tab. */
2291 if (add)
c906108c 2292 {
c94fdfd0
EZ
2293 if (tab_cur_size == tab_alloc_size)
2294 {
2295 tab_alloc_size *= 2;
2296 tab = (const char **) xrealloc ((char *) tab,
2297 tab_alloc_size * sizeof (*tab));
2298 }
2299 tab[tab_cur_size++] = file;
c906108c 2300 }
c906108c 2301
c94fdfd0
EZ
2302 return 0;
2303}
2304
2305/* Slave routine for sources_info. Force line breaks at ,'s.
2306 NAME is the name to print and *FIRST is nonzero if this is the first
2307 name printed. Set *FIRST to zero. */
2308static void
2309output_source_filename (char *name, int *first)
2310{
2311 /* Since a single source file can result in several partial symbol
2312 tables, we need to avoid printing it more than once. Note: if
2313 some of the psymtabs are read in and some are not, it gets
2314 printed both under "Source files for which symbols have been
2315 read" and "Source files for which symbols will be read in on
2316 demand". I consider this a reasonable way to deal with the
2317 situation. I'm not sure whether this can also happen for
2318 symtabs; it doesn't hurt to check. */
2319
2320 /* Was NAME already seen? */
2321 if (filename_seen (name, 1, first))
2322 {
2323 /* Yes; don't print it again. */
2324 return;
2325 }
2326 /* No; print it and reset *FIRST. */
c906108c
SS
2327 if (*first)
2328 {
2329 *first = 0;
2330 }
2331 else
2332 {
2333 printf_filtered (", ");
2334 }
2335
2336 wrap_here ("");
2337 fputs_filtered (name, gdb_stdout);
c5aa993b 2338}
c906108c
SS
2339
2340static void
fba45db2 2341sources_info (char *ignore, int from_tty)
c906108c
SS
2342{
2343 register struct symtab *s;
2344 register struct partial_symtab *ps;
2345 register struct objfile *objfile;
2346 int first;
c5aa993b 2347
c906108c
SS
2348 if (!have_full_symbols () && !have_partial_symbols ())
2349 {
e85428fc 2350 error ("No symbol table is loaded. Use the \"file\" command.");
c906108c 2351 }
c5aa993b 2352
c906108c
SS
2353 printf_filtered ("Source files for which symbols have been read in:\n\n");
2354
2355 first = 1;
2356 ALL_SYMTABS (objfile, s)
c5aa993b
JM
2357 {
2358 output_source_filename (s->filename, &first);
2359 }
c906108c 2360 printf_filtered ("\n\n");
c5aa993b 2361
c906108c
SS
2362 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
2363
2364 first = 1;
2365 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
2366 {
2367 if (!ps->readin)
2368 {
2369 output_source_filename (ps->filename, &first);
2370 }
2371 }
c906108c
SS
2372 printf_filtered ("\n");
2373}
2374
2375static int
fd118b61 2376file_matches (char *file, char *files[], int nfiles)
c906108c
SS
2377{
2378 int i;
2379
2380 if (file != NULL && nfiles != 0)
2381 {
2382 for (i = 0; i < nfiles; i++)
c5aa993b 2383 {
31889e00 2384 if (strcmp (files[i], lbasename (file)) == 0)
c5aa993b
JM
2385 return 1;
2386 }
c906108c
SS
2387 }
2388 else if (nfiles == 0)
2389 return 1;
2390 return 0;
2391}
2392
2393/* Free any memory associated with a search. */
2394void
fba45db2 2395free_search_symbols (struct symbol_search *symbols)
c906108c
SS
2396{
2397 struct symbol_search *p;
2398 struct symbol_search *next;
2399
2400 for (p = symbols; p != NULL; p = next)
2401 {
2402 next = p->next;
b8c9b27d 2403 xfree (p);
c906108c
SS
2404 }
2405}
2406
5bd98722
AC
2407static void
2408do_free_search_symbols_cleanup (void *symbols)
2409{
2410 free_search_symbols (symbols);
2411}
2412
2413struct cleanup *
2414make_cleanup_free_search_symbols (struct symbol_search *symbols)
2415{
2416 return make_cleanup (do_free_search_symbols_cleanup, symbols);
2417}
2418
434d2d4f
DJ
2419/* Helper function for sort_search_symbols and qsort. Can only
2420 sort symbols, not minimal symbols. */
2421static int
2422compare_search_syms (const void *sa, const void *sb)
2423{
2424 struct symbol_search **sym_a = (struct symbol_search **) sa;
2425 struct symbol_search **sym_b = (struct symbol_search **) sb;
2426
2427 return strcmp (SYMBOL_SOURCE_NAME ((*sym_a)->symbol),
2428 SYMBOL_SOURCE_NAME ((*sym_b)->symbol));
2429}
2430
2431/* Sort the ``nfound'' symbols in the list after prevtail. Leave
2432 prevtail where it is, but update its next pointer to point to
2433 the first of the sorted symbols. */
2434static struct symbol_search *
2435sort_search_symbols (struct symbol_search *prevtail, int nfound)
2436{
2437 struct symbol_search **symbols, *symp, *old_next;
2438 int i;
2439
2440 symbols = (struct symbol_search **) xmalloc (sizeof (struct symbol_search *)
2441 * nfound);
2442 symp = prevtail->next;
2443 for (i = 0; i < nfound; i++)
2444 {
2445 symbols[i] = symp;
2446 symp = symp->next;
2447 }
2448 /* Generally NULL. */
2449 old_next = symp;
2450
2451 qsort (symbols, nfound, sizeof (struct symbol_search *),
2452 compare_search_syms);
2453
2454 symp = prevtail;
2455 for (i = 0; i < nfound; i++)
2456 {
2457 symp->next = symbols[i];
2458 symp = symp->next;
2459 }
2460 symp->next = old_next;
2461
8ed32cc0 2462 xfree (symbols);
434d2d4f
DJ
2463 return symp;
2464}
5bd98722 2465
c906108c
SS
2466/* Search the symbol table for matches to the regular expression REGEXP,
2467 returning the results in *MATCHES.
2468
2469 Only symbols of KIND are searched:
c5aa993b
JM
2470 FUNCTIONS_NAMESPACE - search all functions
2471 TYPES_NAMESPACE - search all type names
2472 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
2473 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
2474 and constants (enums)
c906108c
SS
2475
2476 free_search_symbols should be called when *MATCHES is no longer needed.
434d2d4f
DJ
2477
2478 The results are sorted locally; each symtab's global and static blocks are
2479 separately alphabetized.
c5aa993b 2480 */
c906108c 2481void
fd118b61
KB
2482search_symbols (char *regexp, namespace_enum kind, int nfiles, char *files[],
2483 struct symbol_search **matches)
c906108c
SS
2484{
2485 register struct symtab *s;
2486 register struct partial_symtab *ps;
2487 register struct blockvector *bv;
2488 struct blockvector *prev_bv = 0;
2489 register struct block *b;
2490 register int i = 0;
2491 register int j;
2492 register struct symbol *sym;
2493 struct partial_symbol **psym;
2494 struct objfile *objfile;
2495 struct minimal_symbol *msymbol;
2496 char *val;
2497 int found_misc = 0;
2498 static enum minimal_symbol_type types[]
c5aa993b
JM
2499 =
2500 {mst_data, mst_text, mst_abs, mst_unknown};
c906108c 2501 static enum minimal_symbol_type types2[]
c5aa993b
JM
2502 =
2503 {mst_bss, mst_file_text, mst_abs, mst_unknown};
c906108c 2504 static enum minimal_symbol_type types3[]
c5aa993b
JM
2505 =
2506 {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown};
c906108c 2507 static enum minimal_symbol_type types4[]
c5aa993b
JM
2508 =
2509 {mst_file_bss, mst_text, mst_abs, mst_unknown};
c906108c
SS
2510 enum minimal_symbol_type ourtype;
2511 enum minimal_symbol_type ourtype2;
2512 enum minimal_symbol_type ourtype3;
2513 enum minimal_symbol_type ourtype4;
2514 struct symbol_search *sr;
2515 struct symbol_search *psr;
2516 struct symbol_search *tail;
2517 struct cleanup *old_chain = NULL;
2518
993f3aa5 2519 if (kind < VARIABLES_NAMESPACE)
c906108c
SS
2520 error ("must search on specific namespace");
2521
52204a0b
DT
2522 ourtype = types[(int) (kind - VARIABLES_NAMESPACE)];
2523 ourtype2 = types2[(int) (kind - VARIABLES_NAMESPACE)];
2524 ourtype3 = types3[(int) (kind - VARIABLES_NAMESPACE)];
2525 ourtype4 = types4[(int) (kind - VARIABLES_NAMESPACE)];
c906108c
SS
2526
2527 sr = *matches = NULL;
2528 tail = NULL;
2529
2530 if (regexp != NULL)
2531 {
2532 /* Make sure spacing is right for C++ operators.
2533 This is just a courtesy to make the matching less sensitive
2534 to how many spaces the user leaves between 'operator'
2535 and <TYPENAME> or <OPERATOR>. */
2536 char *opend;
2537 char *opname = operator_chars (regexp, &opend);
2538 if (*opname)
c5aa993b
JM
2539 {
2540 int fix = -1; /* -1 means ok; otherwise number of spaces needed. */
2541 if (isalpha (*opname) || *opname == '_' || *opname == '$')
2542 {
2543 /* There should 1 space between 'operator' and 'TYPENAME'. */
2544 if (opname[-1] != ' ' || opname[-2] == ' ')
2545 fix = 1;
2546 }
2547 else
2548 {
2549 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
2550 if (opname[-1] == ' ')
2551 fix = 0;
2552 }
2553 /* If wrong number of spaces, fix it. */
2554 if (fix >= 0)
2555 {
045f55a6 2556 char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1);
c5aa993b
JM
2557 sprintf (tmp, "operator%.*s%s", fix, " ", opname);
2558 regexp = tmp;
2559 }
2560 }
2561
c906108c 2562 if (0 != (val = re_comp (regexp)))
c5aa993b 2563 error ("Invalid regexp (%s): %s", val, regexp);
c906108c
SS
2564 }
2565
2566 /* Search through the partial symtabs *first* for all symbols
2567 matching the regexp. That way we don't have to reproduce all of
2568 the machinery below. */
2569
2570 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
2571 {
2572 struct partial_symbol **bound, **gbound, **sbound;
2573 int keep_going = 1;
2574
2575 if (ps->readin)
2576 continue;
2577
2578 gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms;
2579 sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms;
2580 bound = gbound;
2581
2582 /* Go through all of the symbols stored in a partial
2583 symtab in one loop. */
2584 psym = objfile->global_psymbols.list + ps->globals_offset;
2585 while (keep_going)
2586 {
2587 if (psym >= bound)
2588 {
2589 if (bound == gbound && ps->n_static_syms != 0)
2590 {
2591 psym = objfile->static_psymbols.list + ps->statics_offset;
2592 bound = sbound;
2593 }
2594 else
2595 keep_going = 0;
2596 continue;
2597 }
2598 else
2599 {
2600 QUIT;
2601
2602 /* If it would match (logic taken from loop below)
2603 load the file and go on to the next one */
2604 if (file_matches (ps->filename, files, nfiles)
2605 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (*psym))
2606 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (*psym) != LOC_TYPEDEF
2607 && SYMBOL_CLASS (*psym) != LOC_BLOCK)
2608 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK)
2609 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_TYPEDEF)
2610 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK))))
2611 {
2612 PSYMTAB_TO_SYMTAB (ps);
2613 keep_going = 0;
2614 }
2615 }
2616 psym++;
2617 }
2618 }
c906108c
SS
2619
2620 /* Here, we search through the minimal symbol tables for functions
2621 and variables that match, and force their symbols to be read.
2622 This is in particular necessary for demangled variable names,
2623 which are no longer put into the partial symbol tables.
2624 The symbol will then be found during the scan of symtabs below.
2625
2626 For functions, find_pc_symtab should succeed if we have debug info
2627 for the function, for variables we have to call lookup_symbol
2628 to determine if the variable has debug info.
2629 If the lookup fails, set found_misc so that we will rescan to print
2630 any matching symbols without debug info.
c5aa993b 2631 */
c906108c
SS
2632
2633 if (nfiles == 0 && (kind == VARIABLES_NAMESPACE || kind == FUNCTIONS_NAMESPACE))
2634 {
2635 ALL_MSYMBOLS (objfile, msymbol)
c5aa993b
JM
2636 {
2637 if (MSYMBOL_TYPE (msymbol) == ourtype ||
2638 MSYMBOL_TYPE (msymbol) == ourtype2 ||
2639 MSYMBOL_TYPE (msymbol) == ourtype3 ||
2640 MSYMBOL_TYPE (msymbol) == ourtype4)
2641 {
2642 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
2643 {
2644 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))
2645 {
2646 if (kind == FUNCTIONS_NAMESPACE
2647 || lookup_symbol (SYMBOL_NAME (msymbol),
2648 (struct block *) NULL,
2649 VAR_NAMESPACE,
2650 0, (struct symtab **) NULL) == NULL)
2651 found_misc = 1;
2652 }
2653 }
2654 }
2655 }
c906108c
SS
2656 }
2657
2658 ALL_SYMTABS (objfile, s)
c5aa993b
JM
2659 {
2660 bv = BLOCKVECTOR (s);
2661 /* Often many files share a blockvector.
2662 Scan each blockvector only once so that
2663 we don't get every symbol many times.
2664 It happens that the first symtab in the list
2665 for any given blockvector is the main file. */
2666 if (bv != prev_bv)
2667 for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
2668 {
434d2d4f
DJ
2669 struct symbol_search *prevtail = tail;
2670 int nfound = 0;
c5aa993b 2671 b = BLOCKVECTOR_BLOCK (bv, i);
c5aa993b
JM
2672 for (j = 0; j < BLOCK_NSYMS (b); j++)
2673 {
2674 QUIT;
2675 sym = BLOCK_SYM (b, j);
2676 if (file_matches (s->filename, files, nfiles)
2677 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (sym))
2678 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (sym) != LOC_TYPEDEF
2679 && SYMBOL_CLASS (sym) != LOC_BLOCK
2680 && SYMBOL_CLASS (sym) != LOC_CONST)
2681 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK)
2682 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
2683 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK))))
2684 {
2685 /* match */
2686 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
2687 psr->block = i;
2688 psr->symtab = s;
2689 psr->symbol = sym;
2690 psr->msymbol = NULL;
2691 psr->next = NULL;
2692 if (tail == NULL)
434d2d4f 2693 sr = psr;
c5aa993b
JM
2694 else
2695 tail->next = psr;
2696 tail = psr;
434d2d4f
DJ
2697 nfound ++;
2698 }
2699 }
2700 if (nfound > 0)
2701 {
2702 if (prevtail == NULL)
2703 {
2704 struct symbol_search dummy;
2705
2706 dummy.next = sr;
2707 tail = sort_search_symbols (&dummy, nfound);
2708 sr = dummy.next;
2709
2710 old_chain = make_cleanup_free_search_symbols (sr);
c5aa993b 2711 }
434d2d4f
DJ
2712 else
2713 tail = sort_search_symbols (prevtail, nfound);
c5aa993b
JM
2714 }
2715 }
2716 prev_bv = bv;
2717 }
c906108c
SS
2718
2719 /* If there are no eyes, avoid all contact. I mean, if there are
2720 no debug symbols, then print directly from the msymbol_vector. */
2721
2722 if (found_misc || kind != FUNCTIONS_NAMESPACE)
2723 {
2724 ALL_MSYMBOLS (objfile, msymbol)
c5aa993b
JM
2725 {
2726 if (MSYMBOL_TYPE (msymbol) == ourtype ||
2727 MSYMBOL_TYPE (msymbol) == ourtype2 ||
2728 MSYMBOL_TYPE (msymbol) == ourtype3 ||
2729 MSYMBOL_TYPE (msymbol) == ourtype4)
2730 {
2731 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
2732 {
2733 /* Functions: Look up by address. */
2734 if (kind != FUNCTIONS_NAMESPACE ||
2735 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))))
2736 {
2737 /* Variables/Absolutes: Look up by name */
2738 if (lookup_symbol (SYMBOL_NAME (msymbol),
2739 (struct block *) NULL, VAR_NAMESPACE,
2740 0, (struct symtab **) NULL) == NULL)
2741 {
2742 /* match */
2743 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
2744 psr->block = i;
2745 psr->msymbol = msymbol;
2746 psr->symtab = NULL;
2747 psr->symbol = NULL;
2748 psr->next = NULL;
2749 if (tail == NULL)
2750 {
2751 sr = psr;
5bd98722 2752 old_chain = make_cleanup_free_search_symbols (sr);
c5aa993b
JM
2753 }
2754 else
2755 tail->next = psr;
2756 tail = psr;
2757 }
2758 }
2759 }
2760 }
2761 }
c906108c
SS
2762 }
2763
2764 *matches = sr;
2765 if (sr != NULL)
2766 discard_cleanups (old_chain);
2767}
2768
2769/* Helper function for symtab_symbol_info, this function uses
2770 the data returned from search_symbols() to print information
2771 regarding the match to gdb_stdout.
c5aa993b 2772 */
c906108c 2773static void
fba45db2
KB
2774print_symbol_info (namespace_enum kind, struct symtab *s, struct symbol *sym,
2775 int block, char *last)
c906108c
SS
2776{
2777 if (last == NULL || strcmp (last, s->filename) != 0)
2778 {
2779 fputs_filtered ("\nFile ", gdb_stdout);
2780 fputs_filtered (s->filename, gdb_stdout);
2781 fputs_filtered (":\n", gdb_stdout);
2782 }
2783
2784 if (kind != TYPES_NAMESPACE && block == STATIC_BLOCK)
2785 printf_filtered ("static ");
c5aa993b 2786
c906108c
SS
2787 /* Typedef that is not a C++ class */
2788 if (kind == TYPES_NAMESPACE
2789 && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE)
a5238fbc 2790 typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout);
c906108c 2791 /* variable, func, or typedef-that-is-c++-class */
c5aa993b
JM
2792 else if (kind < TYPES_NAMESPACE ||
2793 (kind == TYPES_NAMESPACE &&
2794 SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE))
c906108c
SS
2795 {
2796 type_print (SYMBOL_TYPE (sym),
c5aa993b
JM
2797 (SYMBOL_CLASS (sym) == LOC_TYPEDEF
2798 ? "" : SYMBOL_SOURCE_NAME (sym)),
2799 gdb_stdout, 0);
c906108c
SS
2800
2801 printf_filtered (";\n");
2802 }
2803 else
2804 {
c5aa993b 2805#if 0
c906108c
SS
2806 /* Tiemann says: "info methods was never implemented." */
2807 char *demangled_name;
c5aa993b
JM
2808 c_type_print_base (TYPE_FN_FIELD_TYPE (t, block),
2809 gdb_stdout, 0, 0);
2810 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t, block),
2811 gdb_stdout, 0);
c906108c 2812 if (TYPE_FN_FIELD_STUB (t, block))
c5aa993b 2813 check_stub_method (TYPE_DOMAIN_TYPE (type), j, block);
c906108c 2814 demangled_name =
c5aa993b
JM
2815 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t, block),
2816 DMGL_ANSI | DMGL_PARAMS);
c906108c 2817 if (demangled_name == NULL)
c5aa993b
JM
2818 fprintf_filtered (stream, "<badly mangled name %s>",
2819 TYPE_FN_FIELD_PHYSNAME (t, block));
c906108c 2820 else
c5aa993b
JM
2821 {
2822 fputs_filtered (demangled_name, stream);
b8c9b27d 2823 xfree (demangled_name);
c5aa993b
JM
2824 }
2825#endif
c906108c
SS
2826 }
2827}
2828
2829/* This help function for symtab_symbol_info() prints information
2830 for non-debugging symbols to gdb_stdout.
c5aa993b 2831 */
c906108c 2832static void
fba45db2 2833print_msymbol_info (struct minimal_symbol *msymbol)
c906108c 2834{
3ac4495a
MS
2835 char *tmp;
2836
2837 if (TARGET_ADDR_BIT <= 32)
2838 tmp = longest_local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol)
2839 & (CORE_ADDR) 0xffffffff,
2840 "08l");
2841 else
2842 tmp = longest_local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol),
2843 "016l");
2844 printf_filtered ("%s %s\n",
2845 tmp, SYMBOL_SOURCE_NAME (msymbol));
c906108c
SS
2846}
2847
2848/* This is the guts of the commands "info functions", "info types", and
2849 "info variables". It calls search_symbols to find all matches and then
2850 print_[m]symbol_info to print out some useful information about the
2851 matches.
c5aa993b 2852 */
c906108c 2853static void
fba45db2 2854symtab_symbol_info (char *regexp, namespace_enum kind, int from_tty)
c906108c
SS
2855{
2856 static char *classnames[]
c5aa993b
JM
2857 =
2858 {"variable", "function", "type", "method"};
c906108c
SS
2859 struct symbol_search *symbols;
2860 struct symbol_search *p;
2861 struct cleanup *old_chain;
2862 char *last_filename = NULL;
2863 int first = 1;
2864
2865 /* must make sure that if we're interrupted, symbols gets freed */
2866 search_symbols (regexp, kind, 0, (char **) NULL, &symbols);
5bd98722 2867 old_chain = make_cleanup_free_search_symbols (symbols);
c906108c
SS
2868
2869 printf_filtered (regexp
c5aa993b
JM
2870 ? "All %ss matching regular expression \"%s\":\n"
2871 : "All defined %ss:\n",
52204a0b 2872 classnames[(int) (kind - VARIABLES_NAMESPACE)], regexp);
c906108c
SS
2873
2874 for (p = symbols; p != NULL; p = p->next)
2875 {
2876 QUIT;
2877
2878 if (p->msymbol != NULL)
c5aa993b
JM
2879 {
2880 if (first)
2881 {
2882 printf_filtered ("\nNon-debugging symbols:\n");
2883 first = 0;
2884 }
2885 print_msymbol_info (p->msymbol);
2886 }
c906108c 2887 else
c5aa993b
JM
2888 {
2889 print_symbol_info (kind,
2890 p->symtab,
2891 p->symbol,
2892 p->block,
2893 last_filename);
2894 last_filename = p->symtab->filename;
2895 }
c906108c
SS
2896 }
2897
2898 do_cleanups (old_chain);
2899}
2900
2901static void
fba45db2 2902variables_info (char *regexp, int from_tty)
c906108c
SS
2903{
2904 symtab_symbol_info (regexp, VARIABLES_NAMESPACE, from_tty);
2905}
2906
2907static void
fba45db2 2908functions_info (char *regexp, int from_tty)
c906108c
SS
2909{
2910 symtab_symbol_info (regexp, FUNCTIONS_NAMESPACE, from_tty);
2911}
2912
357e46e7 2913
c906108c 2914static void
fba45db2 2915types_info (char *regexp, int from_tty)
c906108c
SS
2916{
2917 symtab_symbol_info (regexp, TYPES_NAMESPACE, from_tty);
2918}
2919
2920#if 0
2921/* Tiemann says: "info methods was never implemented." */
2922static void
fba45db2 2923methods_info (char *regexp)
c906108c
SS
2924{
2925 symtab_symbol_info (regexp, METHODS_NAMESPACE, 0, from_tty);
2926}
2927#endif /* 0 */
2928
2929/* Breakpoint all functions matching regular expression. */
8926118c 2930
8b93c638 2931void
fba45db2 2932rbreak_command_wrapper (char *regexp, int from_tty)
8b93c638
JM
2933{
2934 rbreak_command (regexp, from_tty);
2935}
8926118c 2936
c906108c 2937static void
fba45db2 2938rbreak_command (char *regexp, int from_tty)
c906108c
SS
2939{
2940 struct symbol_search *ss;
2941 struct symbol_search *p;
2942 struct cleanup *old_chain;
2943
2944 search_symbols (regexp, FUNCTIONS_NAMESPACE, 0, (char **) NULL, &ss);
5bd98722 2945 old_chain = make_cleanup_free_search_symbols (ss);
c906108c
SS
2946
2947 for (p = ss; p != NULL; p = p->next)
2948 {
2949 if (p->msymbol == NULL)
c5aa993b
JM
2950 {
2951 char *string = (char *) alloca (strlen (p->symtab->filename)
2952 + strlen (SYMBOL_NAME (p->symbol))
2953 + 4);
2954 strcpy (string, p->symtab->filename);
2955 strcat (string, ":'");
2956 strcat (string, SYMBOL_NAME (p->symbol));
2957 strcat (string, "'");
2958 break_command (string, from_tty);
2959 print_symbol_info (FUNCTIONS_NAMESPACE,
2960 p->symtab,
2961 p->symbol,
2962 p->block,
2963 p->symtab->filename);
2964 }
c906108c 2965 else
c5aa993b
JM
2966 {
2967 break_command (SYMBOL_NAME (p->msymbol), from_tty);
2968 printf_filtered ("<function, no debug info> %s;\n",
2969 SYMBOL_SOURCE_NAME (p->msymbol));
2970 }
c906108c
SS
2971 }
2972
2973 do_cleanups (old_chain);
2974}
c906108c 2975\f
c5aa993b 2976
c906108c
SS
2977/* Return Nonzero if block a is lexically nested within block b,
2978 or if a and b have the same pc range.
2979 Return zero otherwise. */
2980int
fba45db2 2981contained_in (struct block *a, struct block *b)
c906108c
SS
2982{
2983 if (!a || !b)
2984 return 0;
2985 return BLOCK_START (a) >= BLOCK_START (b)
c5aa993b 2986 && BLOCK_END (a) <= BLOCK_END (b);
c906108c 2987}
c906108c 2988\f
c5aa993b 2989
c906108c
SS
2990/* Helper routine for make_symbol_completion_list. */
2991
2992static int return_val_size;
2993static int return_val_index;
2994static char **return_val;
2995
2996#define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
2997 do { \
2998 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
2999 /* Put only the mangled name on the list. */ \
3000 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
3001 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
3002 completion_list_add_name \
3003 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
3004 else \
3005 completion_list_add_name \
3006 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
3007 } while (0)
3008
3009/* Test to see if the symbol specified by SYMNAME (which is already
c5aa993b
JM
3010 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3011 characters. If so, add it to the current completion list. */
c906108c
SS
3012
3013static void
fba45db2
KB
3014completion_list_add_name (char *symname, char *sym_text, int sym_text_len,
3015 char *text, char *word)
c906108c
SS
3016{
3017 int newsize;
3018 int i;
3019
3020 /* clip symbols that cannot match */
3021
3022 if (strncmp (symname, sym_text, sym_text_len) != 0)
3023 {
3024 return;
3025 }
3026
c906108c
SS
3027 /* We have a match for a completion, so add SYMNAME to the current list
3028 of matches. Note that the name is moved to freshly malloc'd space. */
3029
3030 {
3031 char *new;
3032 if (word == sym_text)
3033 {
3034 new = xmalloc (strlen (symname) + 5);
3035 strcpy (new, symname);
3036 }
3037 else if (word > sym_text)
3038 {
3039 /* Return some portion of symname. */
3040 new = xmalloc (strlen (symname) + 5);
3041 strcpy (new, symname + (word - sym_text));
3042 }
3043 else
3044 {
3045 /* Return some of SYM_TEXT plus symname. */
3046 new = xmalloc (strlen (symname) + (sym_text - word) + 5);
3047 strncpy (new, word, sym_text - word);
3048 new[sym_text - word] = '\0';
3049 strcat (new, symname);
3050 }
3051
c906108c
SS
3052 if (return_val_index + 3 > return_val_size)
3053 {
3054 newsize = (return_val_size *= 2) * sizeof (char *);
3055 return_val = (char **) xrealloc ((char *) return_val, newsize);
3056 }
3057 return_val[return_val_index++] = new;
3058 return_val[return_val_index] = NULL;
3059 }
3060}
3061
c94fdfd0
EZ
3062/* Return a NULL terminated array of all symbols (regardless of class)
3063 which begin by matching TEXT. If the answer is no symbols, then
3064 the return value is an array which contains only a NULL pointer.
c906108c
SS
3065
3066 Problem: All of the symbols have to be copied because readline frees them.
3067 I'm not going to worry about this; hopefully there won't be that many. */
3068
3069char **
fba45db2 3070make_symbol_completion_list (char *text, char *word)
c906108c
SS
3071{
3072 register struct symbol *sym;
3073 register struct symtab *s;
3074 register struct partial_symtab *ps;
3075 register struct minimal_symbol *msymbol;
3076 register struct objfile *objfile;
3077 register struct block *b, *surrounding_static_block = 0;
3078 register int i, j;
3079 struct partial_symbol **psym;
3080 /* The symbol we are completing on. Points in same buffer as text. */
3081 char *sym_text;
3082 /* Length of sym_text. */
3083 int sym_text_len;
3084
3085 /* Now look for the symbol we are supposed to complete on.
3086 FIXME: This should be language-specific. */
3087 {
3088 char *p;
3089 char quote_found;
3090 char *quote_pos = NULL;
3091
3092 /* First see if this is a quoted string. */
3093 quote_found = '\0';
3094 for (p = text; *p != '\0'; ++p)
3095 {
3096 if (quote_found != '\0')
3097 {
3098 if (*p == quote_found)
3099 /* Found close quote. */
3100 quote_found = '\0';
3101 else if (*p == '\\' && p[1] == quote_found)
3102 /* A backslash followed by the quote character
c5aa993b 3103 doesn't end the string. */
c906108c
SS
3104 ++p;
3105 }
3106 else if (*p == '\'' || *p == '"')
3107 {
3108 quote_found = *p;
3109 quote_pos = p;
3110 }
3111 }
3112 if (quote_found == '\'')
3113 /* A string within single quotes can be a symbol, so complete on it. */
3114 sym_text = quote_pos + 1;
3115 else if (quote_found == '"')
3116 /* A double-quoted string is never a symbol, nor does it make sense
c5aa993b 3117 to complete it any other way. */
c94fdfd0
EZ
3118 {
3119 return_val = (char **) xmalloc (sizeof (char *));
3120 return_val[0] = NULL;
3121 return return_val;
3122 }
c906108c
SS
3123 else
3124 {
3125 /* It is not a quoted string. Break it based on the characters
3126 which are in symbols. */
3127 while (p > text)
3128 {
3129 if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
3130 --p;
3131 else
3132 break;
3133 }
3134 sym_text = p;
3135 }
3136 }
3137
3138 sym_text_len = strlen (sym_text);
3139
3140 return_val_size = 100;
3141 return_val_index = 0;
3142 return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *));
3143 return_val[0] = NULL;
3144
3145 /* Look through the partial symtabs for all symbols which begin
3146 by matching SYM_TEXT. Add each one that you find to the list. */
3147
3148 ALL_PSYMTABS (objfile, ps)
c5aa993b
JM
3149 {
3150 /* If the psymtab's been read in we'll get it when we search
3151 through the blockvector. */
3152 if (ps->readin)
3153 continue;
3154
3155 for (psym = objfile->global_psymbols.list + ps->globals_offset;
3156 psym < (objfile->global_psymbols.list + ps->globals_offset
3157 + ps->n_global_syms);
3158 psym++)
3159 {
3160 /* If interrupted, then quit. */
3161 QUIT;
3162 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
3163 }
3164
3165 for (psym = objfile->static_psymbols.list + ps->statics_offset;
3166 psym < (objfile->static_psymbols.list + ps->statics_offset
3167 + ps->n_static_syms);
3168 psym++)
3169 {
3170 QUIT;
3171 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
3172 }
3173 }
c906108c
SS
3174
3175 /* At this point scan through the misc symbol vectors and add each
3176 symbol you find to the list. Eventually we want to ignore
3177 anything that isn't a text symbol (everything else will be
3178 handled by the psymtab code above). */
3179
3180 ALL_MSYMBOLS (objfile, msymbol)
c5aa993b
JM
3181 {
3182 QUIT;
3183 COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word);
3184 }
c906108c
SS
3185
3186 /* Search upwards from currently selected frame (so that we can
3187 complete on local vars. */
3188
3189 for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
3190 {
3191 if (!BLOCK_SUPERBLOCK (b))
3192 {
c5aa993b 3193 surrounding_static_block = b; /* For elmin of dups */
c906108c 3194 }
c5aa993b 3195
c906108c 3196 /* Also catch fields of types defined in this places which match our
c5aa993b 3197 text string. Only complete on types visible from current context. */
c906108c 3198
e88c90f2 3199 ALL_BLOCK_SYMBOLS (b, i, sym)
c906108c 3200 {
c906108c
SS
3201 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3202 if (SYMBOL_CLASS (sym) == LOC_TYPEDEF)
3203 {
3204 struct type *t = SYMBOL_TYPE (sym);
3205 enum type_code c = TYPE_CODE (t);
3206
3207 if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT)
3208 {
3209 for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++)
3210 {
3211 if (TYPE_FIELD_NAME (t, j))
3212 {
3213 completion_list_add_name (TYPE_FIELD_NAME (t, j),
c5aa993b 3214 sym_text, sym_text_len, text, word);
c906108c
SS
3215 }
3216 }
3217 }
3218 }
3219 }
3220 }
3221
3222 /* Go through the symtabs and check the externs and statics for
3223 symbols which match. */
3224
3225 ALL_SYMTABS (objfile, s)
c5aa993b
JM
3226 {
3227 QUIT;
3228 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
e88c90f2 3229 ALL_BLOCK_SYMBOLS (b, i, sym)
c5aa993b 3230 {
c5aa993b
JM
3231 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3232 }
3233 }
c906108c
SS
3234
3235 ALL_SYMTABS (objfile, s)
c5aa993b
JM
3236 {
3237 QUIT;
3238 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
3239 /* Don't do this block twice. */
3240 if (b == surrounding_static_block)
3241 continue;
e88c90f2 3242 ALL_BLOCK_SYMBOLS (b, i, sym)
c5aa993b 3243 {
c5aa993b
JM
3244 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3245 }
3246 }
c906108c
SS
3247
3248 return (return_val);
3249}
3250
c94fdfd0
EZ
3251/* Like make_symbol_completion_list, but returns a list of symbols
3252 defined in a source file FILE. */
3253
3254char **
3255make_file_symbol_completion_list (char *text, char *word, char *srcfile)
3256{
3257 register struct symbol *sym;
3258 register struct symtab *s;
3259 register struct block *b;
3260 register int i;
3261 /* The symbol we are completing on. Points in same buffer as text. */
3262 char *sym_text;
3263 /* Length of sym_text. */
3264 int sym_text_len;
3265
3266 /* Now look for the symbol we are supposed to complete on.
3267 FIXME: This should be language-specific. */
3268 {
3269 char *p;
3270 char quote_found;
3271 char *quote_pos = NULL;
3272
3273 /* First see if this is a quoted string. */
3274 quote_found = '\0';
3275 for (p = text; *p != '\0'; ++p)
3276 {
3277 if (quote_found != '\0')
3278 {
3279 if (*p == quote_found)
3280 /* Found close quote. */
3281 quote_found = '\0';
3282 else if (*p == '\\' && p[1] == quote_found)
3283 /* A backslash followed by the quote character
3284 doesn't end the string. */
3285 ++p;
3286 }
3287 else if (*p == '\'' || *p == '"')
3288 {
3289 quote_found = *p;
3290 quote_pos = p;
3291 }
3292 }
3293 if (quote_found == '\'')
3294 /* A string within single quotes can be a symbol, so complete on it. */
3295 sym_text = quote_pos + 1;
3296 else if (quote_found == '"')
3297 /* A double-quoted string is never a symbol, nor does it make sense
3298 to complete it any other way. */
3299 {
3300 return_val = (char **) xmalloc (sizeof (char *));
3301 return_val[0] = NULL;
3302 return return_val;
3303 }
3304 else
3305 {
3306 /* It is not a quoted string. Break it based on the characters
3307 which are in symbols. */
3308 while (p > text)
3309 {
3310 if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
3311 --p;
3312 else
3313 break;
3314 }
3315 sym_text = p;
3316 }
3317 }
3318
3319 sym_text_len = strlen (sym_text);
3320
3321 return_val_size = 10;
3322 return_val_index = 0;
3323 return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *));
3324 return_val[0] = NULL;
3325
3326 /* Find the symtab for SRCFILE (this loads it if it was not yet read
3327 in). */
3328 s = lookup_symtab (srcfile);
3329 if (s == NULL)
3330 {
3331 /* Maybe they typed the file with leading directories, while the
3332 symbol tables record only its basename. */
31889e00 3333 const char *tail = lbasename (srcfile);
c94fdfd0
EZ
3334
3335 if (tail > srcfile)
3336 s = lookup_symtab (tail);
3337 }
3338
3339 /* If we have no symtab for that file, return an empty list. */
3340 if (s == NULL)
3341 return (return_val);
3342
3343 /* Go through this symtab and check the externs and statics for
3344 symbols which match. */
3345
3346 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
e88c90f2 3347 ALL_BLOCK_SYMBOLS (b, i, sym)
c94fdfd0 3348 {
c94fdfd0
EZ
3349 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3350 }
3351
3352 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
e88c90f2 3353 ALL_BLOCK_SYMBOLS (b, i, sym)
c94fdfd0 3354 {
c94fdfd0
EZ
3355 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3356 }
3357
3358 return (return_val);
3359}
3360
3361/* A helper function for make_source_files_completion_list. It adds
3362 another file name to a list of possible completions, growing the
3363 list as necessary. */
3364
3365static void
3366add_filename_to_list (const char *fname, char *text, char *word,
3367 char ***list, int *list_used, int *list_alloced)
3368{
3369 char *new;
3370 size_t fnlen = strlen (fname);
3371
3372 if (*list_used + 1 >= *list_alloced)
3373 {
3374 *list_alloced *= 2;
3375 *list = (char **) xrealloc ((char *) *list,
3376 *list_alloced * sizeof (char *));
3377 }
3378
3379 if (word == text)
3380 {
3381 /* Return exactly fname. */
3382 new = xmalloc (fnlen + 5);
3383 strcpy (new, fname);
3384 }
3385 else if (word > text)
3386 {
3387 /* Return some portion of fname. */
3388 new = xmalloc (fnlen + 5);
3389 strcpy (new, fname + (word - text));
3390 }
3391 else
3392 {
3393 /* Return some of TEXT plus fname. */
3394 new = xmalloc (fnlen + (text - word) + 5);
3395 strncpy (new, word, text - word);
3396 new[text - word] = '\0';
3397 strcat (new, fname);
3398 }
3399 (*list)[*list_used] = new;
3400 (*list)[++*list_used] = NULL;
3401}
3402
3403static int
3404not_interesting_fname (const char *fname)
3405{
3406 static const char *illegal_aliens[] = {
3407 "_globals_", /* inserted by coff_symtab_read */
3408 NULL
3409 };
3410 int i;
3411
3412 for (i = 0; illegal_aliens[i]; i++)
3413 {
3414 if (strcmp (fname, illegal_aliens[i]) == 0)
3415 return 1;
3416 }
3417 return 0;
3418}
3419
3420/* Return a NULL terminated array of all source files whose names
3421 begin with matching TEXT. The file names are looked up in the
3422 symbol tables of this program. If the answer is no matchess, then
3423 the return value is an array which contains only a NULL pointer. */
3424
3425char **
3426make_source_files_completion_list (char *text, char *word)
3427{
3428 register struct symtab *s;
3429 register struct partial_symtab *ps;
3430 register struct objfile *objfile;
3431 int first = 1;
3432 int list_alloced = 1;
3433 int list_used = 0;
3434 size_t text_len = strlen (text);
3435 char **list = (char **) xmalloc (list_alloced * sizeof (char *));
31889e00 3436 const char *base_name;
c94fdfd0
EZ
3437
3438 list[0] = NULL;
3439
3440 if (!have_full_symbols () && !have_partial_symbols ())
3441 return list;
3442
3443 ALL_SYMTABS (objfile, s)
3444 {
3445 if (not_interesting_fname (s->filename))
3446 continue;
3447 if (!filename_seen (s->filename, 1, &first)
3448#if HAVE_DOS_BASED_FILE_SYSTEM
3449 && strncasecmp (s->filename, text, text_len) == 0
3450#else
3451 && strncmp (s->filename, text, text_len) == 0
3452#endif
3453 )
3454 {
3455 /* This file matches for a completion; add it to the current
3456 list of matches. */
3457 add_filename_to_list (s->filename, text, word,
3458 &list, &list_used, &list_alloced);
3459 }
3460 else
3461 {
3462 /* NOTE: We allow the user to type a base name when the
3463 debug info records leading directories, but not the other
3464 way around. This is what subroutines of breakpoint
3465 command do when they parse file names. */
31889e00 3466 base_name = lbasename (s->filename);
c94fdfd0
EZ
3467 if (base_name != s->filename
3468 && !filename_seen (base_name, 1, &first)
3469#if HAVE_DOS_BASED_FILE_SYSTEM
3470 && strncasecmp (base_name, text, text_len) == 0
3471#else
3472 && strncmp (base_name, text, text_len) == 0
3473#endif
3474 )
3475 add_filename_to_list (base_name, text, word,
3476 &list, &list_used, &list_alloced);
3477 }
3478 }
3479
3480 ALL_PSYMTABS (objfile, ps)
3481 {
3482 if (not_interesting_fname (ps->filename))
3483 continue;
3484 if (!ps->readin)
3485 {
3486 if (!filename_seen (ps->filename, 1, &first)
3487#if HAVE_DOS_BASED_FILE_SYSTEM
3488 && strncasecmp (ps->filename, text, text_len) == 0
3489#else
3490 && strncmp (ps->filename, text, text_len) == 0
3491#endif
3492 )
3493 {
3494 /* This file matches for a completion; add it to the
3495 current list of matches. */
3496 add_filename_to_list (ps->filename, text, word,
3497 &list, &list_used, &list_alloced);
3498
3499 }
3500 else
3501 {
31889e00 3502 base_name = lbasename (ps->filename);
c94fdfd0
EZ
3503 if (base_name != ps->filename
3504 && !filename_seen (base_name, 1, &first)
3505#if HAVE_DOS_BASED_FILE_SYSTEM
3506 && strncasecmp (base_name, text, text_len) == 0
3507#else
3508 && strncmp (base_name, text, text_len) == 0
3509#endif
3510 )
3511 add_filename_to_list (base_name, text, word,
3512 &list, &list_used, &list_alloced);
3513 }
3514 }
3515 }
3516
3517 return list;
3518}
3519
c906108c
SS
3520/* Determine if PC is in the prologue of a function. The prologue is the area
3521 between the first instruction of a function, and the first executable line.
3522 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
3523
3524 If non-zero, func_start is where we think the prologue starts, possibly
3525 by previous examination of symbol table information.
3526 */
3527
3528int
fba45db2 3529in_prologue (CORE_ADDR pc, CORE_ADDR func_start)
c906108c
SS
3530{
3531 struct symtab_and_line sal;
3532 CORE_ADDR func_addr, func_end;
3533
54cf9c03
EZ
3534 /* We have several sources of information we can consult to figure
3535 this out.
3536 - Compilers usually emit line number info that marks the prologue
3537 as its own "source line". So the ending address of that "line"
3538 is the end of the prologue. If available, this is the most
3539 reliable method.
3540 - The minimal symbols and partial symbols, which can usually tell
3541 us the starting and ending addresses of a function.
3542 - If we know the function's start address, we can call the
3543 architecture-defined SKIP_PROLOGUE function to analyze the
3544 instruction stream and guess where the prologue ends.
3545 - Our `func_start' argument; if non-zero, this is the caller's
3546 best guess as to the function's entry point. At the time of
3547 this writing, handle_inferior_event doesn't get this right, so
3548 it should be our last resort. */
3549
3550 /* Consult the partial symbol table, to find which function
3551 the PC is in. */
3552 if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end))
3553 {
3554 CORE_ADDR prologue_end;
c906108c 3555
54cf9c03
EZ
3556 /* We don't even have minsym information, so fall back to using
3557 func_start, if given. */
3558 if (! func_start)
3559 return 1; /* We *might* be in a prologue. */
c906108c 3560
54cf9c03 3561 prologue_end = SKIP_PROLOGUE (func_start);
c906108c 3562
54cf9c03
EZ
3563 return func_start <= pc && pc < prologue_end;
3564 }
c906108c 3565
54cf9c03
EZ
3566 /* If we have line number information for the function, that's
3567 usually pretty reliable. */
3568 sal = find_pc_line (func_addr, 0);
c906108c 3569
54cf9c03
EZ
3570 /* Now sal describes the source line at the function's entry point,
3571 which (by convention) is the prologue. The end of that "line",
3572 sal.end, is the end of the prologue.
3573
3574 Note that, for functions whose source code is all on a single
3575 line, the line number information doesn't always end up this way.
3576 So we must verify that our purported end-of-prologue address is
3577 *within* the function, not at its start or end. */
3578 if (sal.line == 0
3579 || sal.end <= func_addr
3580 || func_end <= sal.end)
3581 {
3582 /* We don't have any good line number info, so use the minsym
3583 information, together with the architecture-specific prologue
3584 scanning code. */
3585 CORE_ADDR prologue_end = SKIP_PROLOGUE (func_addr);
c906108c 3586
54cf9c03
EZ
3587 return func_addr <= pc && pc < prologue_end;
3588 }
c906108c 3589
54cf9c03
EZ
3590 /* We have line number info, and it looks good. */
3591 return func_addr <= pc && pc < sal.end;
c906108c
SS
3592}
3593
3594
3595/* Begin overload resolution functions */
3596/* Helper routine for make_symbol_completion_list. */
3597
3598static int sym_return_val_size;
3599static int sym_return_val_index;
3600static struct symbol **sym_return_val;
3601
3602/* Test to see if the symbol specified by SYMNAME (which is already
c5aa993b
JM
3603 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3604 characters. If so, add it to the current completion list. */
c906108c
SS
3605
3606static void
fba45db2 3607overload_list_add_symbol (struct symbol *sym, char *oload_name)
c906108c
SS
3608{
3609 int newsize;
3610 int i;
3611
3612 /* Get the demangled name without parameters */
c5aa993b 3613 char *sym_name = cplus_demangle (SYMBOL_NAME (sym), DMGL_ARM | DMGL_ANSI);
c906108c
SS
3614 if (!sym_name)
3615 {
3616 sym_name = (char *) xmalloc (strlen (SYMBOL_NAME (sym)) + 1);
3617 strcpy (sym_name, SYMBOL_NAME (sym));
3618 }
3619
3620 /* skip symbols that cannot match */
3621 if (strcmp (sym_name, oload_name) != 0)
917317f4 3622 {
b8c9b27d 3623 xfree (sym_name);
917317f4
JM
3624 return;
3625 }
c906108c
SS
3626
3627 /* If there is no type information, we can't do anything, so skip */
3628 if (SYMBOL_TYPE (sym) == NULL)
3629 return;
3630
3631 /* skip any symbols that we've already considered. */
3632 for (i = 0; i < sym_return_val_index; ++i)
3633 if (!strcmp (SYMBOL_NAME (sym), SYMBOL_NAME (sym_return_val[i])))
3634 return;
3635
3636 /* We have a match for an overload instance, so add SYM to the current list
3637 * of overload instances */
3638 if (sym_return_val_index + 3 > sym_return_val_size)
3639 {
3640 newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *);
3641 sym_return_val = (struct symbol **) xrealloc ((char *) sym_return_val, newsize);
3642 }
3643 sym_return_val[sym_return_val_index++] = sym;
3644 sym_return_val[sym_return_val_index] = NULL;
c5aa993b 3645
b8c9b27d 3646 xfree (sym_name);
c906108c
SS
3647}
3648
3649/* Return a null-terminated list of pointers to function symbols that
3650 * match name of the supplied symbol FSYM.
3651 * This is used in finding all overloaded instances of a function name.
3652 * This has been modified from make_symbol_completion_list. */
3653
3654
3655struct symbol **
fba45db2 3656make_symbol_overload_list (struct symbol *fsym)
c906108c
SS
3657{
3658 register struct symbol *sym;
3659 register struct symtab *s;
3660 register struct partial_symtab *ps;
c906108c
SS
3661 register struct objfile *objfile;
3662 register struct block *b, *surrounding_static_block = 0;
d4f3574e 3663 register int i;
c906108c
SS
3664 /* The name we are completing on. */
3665 char *oload_name = NULL;
3666 /* Length of name. */
3667 int oload_name_len = 0;
3668
3669 /* Look for the symbol we are supposed to complete on.
3670 * FIXME: This should be language-specific. */
3671
3672 oload_name = cplus_demangle (SYMBOL_NAME (fsym), DMGL_ARM | DMGL_ANSI);
3673 if (!oload_name)
3674 {
3675 oload_name = (char *) xmalloc (strlen (SYMBOL_NAME (fsym)) + 1);
3676 strcpy (oload_name, SYMBOL_NAME (fsym));
3677 }
3678 oload_name_len = strlen (oload_name);
3679
3680 sym_return_val_size = 100;
3681 sym_return_val_index = 0;
3682 sym_return_val = (struct symbol **) xmalloc ((sym_return_val_size + 1) * sizeof (struct symbol *));
3683 sym_return_val[0] = NULL;
3684
3685 /* Look through the partial symtabs for all symbols which begin
917317f4 3686 by matching OLOAD_NAME. Make sure we read that symbol table in. */
c906108c
SS
3687
3688 ALL_PSYMTABS (objfile, ps)
c5aa993b 3689 {
d4f3574e
SS
3690 struct partial_symbol **psym;
3691
c5aa993b
JM
3692 /* If the psymtab's been read in we'll get it when we search
3693 through the blockvector. */
3694 if (ps->readin)
3695 continue;
3696
3697 for (psym = objfile->global_psymbols.list + ps->globals_offset;
3698 psym < (objfile->global_psymbols.list + ps->globals_offset
3699 + ps->n_global_syms);
3700 psym++)
3701 {
3702 /* If interrupted, then quit. */
3703 QUIT;
917317f4
JM
3704 /* This will cause the symbol table to be read if it has not yet been */
3705 s = PSYMTAB_TO_SYMTAB (ps);
c5aa993b
JM
3706 }
3707
3708 for (psym = objfile->static_psymbols.list + ps->statics_offset;
3709 psym < (objfile->static_psymbols.list + ps->statics_offset
3710 + ps->n_static_syms);
3711 psym++)
3712 {
3713 QUIT;
917317f4
JM
3714 /* This will cause the symbol table to be read if it has not yet been */
3715 s = PSYMTAB_TO_SYMTAB (ps);
c5aa993b
JM
3716 }
3717 }
c906108c 3718
c906108c
SS
3719 /* Search upwards from currently selected frame (so that we can
3720 complete on local vars. */
3721
3722 for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
3723 {
3724 if (!BLOCK_SUPERBLOCK (b))
3725 {
c5aa993b 3726 surrounding_static_block = b; /* For elimination of dups */
c906108c 3727 }
c5aa993b 3728
c906108c 3729 /* Also catch fields of types defined in this places which match our
c5aa993b 3730 text string. Only complete on types visible from current context. */
c906108c 3731
e88c90f2 3732 ALL_BLOCK_SYMBOLS (b, i, sym)
c906108c 3733 {
c906108c
SS
3734 overload_list_add_symbol (sym, oload_name);
3735 }
3736 }
3737
3738 /* Go through the symtabs and check the externs and statics for
3739 symbols which match. */
3740
3741 ALL_SYMTABS (objfile, s)
c5aa993b
JM
3742 {
3743 QUIT;
3744 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
e88c90f2 3745 ALL_BLOCK_SYMBOLS (b, i, sym)
c5aa993b 3746 {
c5aa993b
JM
3747 overload_list_add_symbol (sym, oload_name);
3748 }
3749 }
c906108c
SS
3750
3751 ALL_SYMTABS (objfile, s)
c5aa993b
JM
3752 {
3753 QUIT;
3754 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
3755 /* Don't do this block twice. */
3756 if (b == surrounding_static_block)
3757 continue;
e88c90f2 3758 ALL_BLOCK_SYMBOLS (b, i, sym)
c5aa993b 3759 {
c5aa993b
JM
3760 overload_list_add_symbol (sym, oload_name);
3761 }
3762 }
c906108c 3763
b8c9b27d 3764 xfree (oload_name);
c906108c
SS
3765
3766 return (sym_return_val);
3767}
3768
3769/* End of overload resolution functions */
c906108c 3770\f
50641945
FN
3771struct symtabs_and_lines
3772decode_line_spec (char *string, int funfirstline)
3773{
3774 struct symtabs_and_lines sals;
3775 if (string == 0)
3776 error ("Empty line specification.");
3777 sals = decode_line_1 (&string, funfirstline,
3778 current_source_symtab, current_source_line,
3779 (char ***) NULL);
3780 if (*string)
3781 error ("Junk at end of line specification: %s", string);
3782 return sals;
3783}
c5aa993b 3784
51cc5b07
AC
3785/* Track MAIN */
3786static char *name_of_main;
3787
3788void
3789set_main_name (const char *name)
3790{
3791 if (name_of_main != NULL)
3792 {
3793 xfree (name_of_main);
3794 name_of_main = NULL;
3795 }
3796 if (name != NULL)
3797 {
3798 name_of_main = xstrdup (name);
3799 }
3800}
3801
3802char *
3803main_name (void)
3804{
3805 if (name_of_main != NULL)
3806 return name_of_main;
3807 else
3808 return "main";
3809}
3810
3811
c906108c 3812void
fba45db2 3813_initialize_symtab (void)
c906108c
SS
3814{
3815 add_info ("variables", variables_info,
c5aa993b 3816 "All global and static variable names, or those matching REGEXP.");
c906108c 3817 if (dbx_commands)
c5aa993b
JM
3818 add_com ("whereis", class_info, variables_info,
3819 "All global and static variable names, or those matching REGEXP.");
c906108c
SS
3820
3821 add_info ("functions", functions_info,
3822 "All function names, or those matching REGEXP.");
3823
357e46e7 3824
c906108c
SS
3825 /* FIXME: This command has at least the following problems:
3826 1. It prints builtin types (in a very strange and confusing fashion).
3827 2. It doesn't print right, e.g. with
c5aa993b
JM
3828 typedef struct foo *FOO
3829 type_print prints "FOO" when we want to make it (in this situation)
3830 print "struct foo *".
c906108c
SS
3831 I also think "ptype" or "whatis" is more likely to be useful (but if
3832 there is much disagreement "info types" can be fixed). */
3833 add_info ("types", types_info,
3834 "All type names, or those matching REGEXP.");
3835
3836#if 0
3837 add_info ("methods", methods_info,
3838 "All method names, or those matching REGEXP::REGEXP.\n\
3839If the class qualifier is omitted, it is assumed to be the current scope.\n\
3840If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
3841are listed.");
3842#endif
3843 add_info ("sources", sources_info,
3844 "Source files in the program.");
3845
3846 add_com ("rbreak", class_breakpoint, rbreak_command,
c5aa993b 3847 "Set a breakpoint for all functions matching REGEXP.");
c906108c
SS
3848
3849 if (xdb_commands)
3850 {
3851 add_com ("lf", class_info, sources_info, "Source files in the program");
3852 add_com ("lg", class_info, variables_info,
c5aa993b 3853 "All global and static variable names, or those matching REGEXP.");
c906108c
SS
3854 }
3855
3856 /* Initialize the one built-in type that isn't language dependent... */
3857 builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0,
3858 "<unknown type>", (struct objfile *) NULL);
3859}
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