1 /* Symbol table lookup for the GNU debugger, GDB.
2 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
3 1996, 1997, 1998, 1999, 2000, 2001
4 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
33 #include "call-cmds.h"
34 #include "gdb_regex.h"
35 #include "expression.h"
40 #include "filenames.h" /* for FILENAME_CMP */
44 #include <sys/types.h>
46 #include "gdb_string.h"
51 /* Prototype for one function in parser-defs.h,
52 instead of including that entire file. */
54 extern char *find_template_name_end (char *);
56 /* Prototypes for local functions */
58 static void completion_list_add_name (char *, char *, int, char *, char *);
60 static void rbreak_command (char *, int);
62 static void types_info (char *, int);
64 static void functions_info (char *, int);
66 static void variables_info (char *, int);
68 static void sources_info (char *, int);
70 static void output_source_filename (char *, int *);
72 static int find_line_common (struct linetable *, int, int *);
74 /* This one is used by linespec.c */
76 char *operator_chars (char *p, char **end);
78 static struct partial_symbol *lookup_partial_symbol (struct partial_symtab *,
82 static struct symbol *lookup_symbol_aux (const char *name, const
83 struct block *block, const
84 namespace_enum namespace, int
85 *is_a_field_of_this, struct
89 static struct symbol *find_active_alias (struct symbol *sym, CORE_ADDR addr);
91 /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
92 /* Signals the presence of objects compiled by HP compilers */
93 int hp_som_som_object_present = 0;
95 static void fixup_section (struct general_symbol_info *, struct objfile *);
97 static int file_matches (char *, char **, int);
99 static void print_symbol_info (namespace_enum,
100 struct symtab *, struct symbol *, int, char *);
102 static void print_msymbol_info (struct minimal_symbol *);
104 static void symtab_symbol_info (char *, namespace_enum, int);
106 static void overload_list_add_symbol (struct symbol *sym, char *oload_name);
108 void _initialize_symtab (void);
112 /* The single non-language-specific builtin type */
113 struct type *builtin_type_error;
115 /* Block in which the most recently searched-for symbol was found.
116 Might be better to make this a parameter to lookup_symbol and
119 const struct block *block_found;
121 /* While the C++ support is still in flux, issue a possibly helpful hint on
122 using the new command completion feature on single quoted demangled C++
123 symbols. Remove when loose ends are cleaned up. FIXME -fnf */
126 cplusplus_hint (char *name)
128 while (*name == '\'')
130 printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name);
131 printf_filtered ("(Note leading single quote.)\n");
134 /* Check for a symtab of a specific name; first in symtabs, then in
135 psymtabs. *If* there is no '/' in the name, a match after a '/'
136 in the symtab filename will also work. */
139 lookup_symtab (const char *name)
141 register struct symtab *s;
142 register struct partial_symtab *ps;
143 register struct objfile *objfile;
147 /* First, search for an exact match */
149 ALL_SYMTABS (objfile, s)
150 if (FILENAME_CMP (name, s->filename) == 0)
153 /* Now, search for a matching tail (only if name doesn't have any dirs) */
155 if (lbasename (name) == name)
156 ALL_SYMTABS (objfile, s)
158 if (FILENAME_CMP (lbasename (s->filename), name) == 0)
162 /* Same search rules as above apply here, but now we look thru the
165 ps = lookup_partial_symtab (name);
170 error ("Internal: readin %s pst for `%s' found when no symtab found.",
173 s = PSYMTAB_TO_SYMTAB (ps);
178 /* At this point, we have located the psymtab for this file, but
179 the conversion to a symtab has failed. This usually happens
180 when we are looking up an include file. In this case,
181 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
182 been created. So, we need to run through the symtabs again in
183 order to find the file.
184 XXX - This is a crock, and should be fixed inside of the the
185 symbol parsing routines. */
189 /* Lookup the partial symbol table of a source file named NAME.
190 *If* there is no '/' in the name, a match after a '/'
191 in the psymtab filename will also work. */
193 struct partial_symtab *
194 lookup_partial_symtab (const char *name)
196 register struct partial_symtab *pst;
197 register struct objfile *objfile;
199 ALL_PSYMTABS (objfile, pst)
201 if (FILENAME_CMP (name, pst->filename) == 0)
207 /* Now, search for a matching tail (only if name doesn't have any dirs) */
209 if (lbasename (name) == name)
210 ALL_PSYMTABS (objfile, pst)
212 if (FILENAME_CMP (lbasename (pst->filename), name) == 0)
219 /* Mangle a GDB method stub type. This actually reassembles the pieces of the
220 full method name, which consist of the class name (from T), the unadorned
221 method name from METHOD_ID, and the signature for the specific overload,
222 specified by SIGNATURE_ID. Note that this function is g++ specific. */
225 gdb_mangle_name (struct type *type, int method_id, int signature_id)
227 int mangled_name_len;
229 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id);
230 struct fn_field *method = &f[signature_id];
231 char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id);
232 char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id);
233 char *newname = type_name_no_tag (type);
235 /* Does the form of physname indicate that it is the full mangled name
236 of a constructor (not just the args)? */
237 int is_full_physname_constructor;
240 int is_destructor = is_destructor_name (physname);
241 /* Need a new type prefix. */
242 char *const_prefix = method->is_const ? "C" : "";
243 char *volatile_prefix = method->is_volatile ? "V" : "";
245 int len = (newname == NULL ? 0 : strlen (newname));
247 if (is_operator_name (field_name))
248 return xstrdup (physname);
250 is_full_physname_constructor = is_constructor_name (physname);
253 is_full_physname_constructor || (newname && STREQ (field_name, newname));
256 is_destructor = (strncmp (physname, "__dt", 4) == 0);
258 if (is_destructor || is_full_physname_constructor)
260 mangled_name = (char *) xmalloc (strlen (physname) + 1);
261 strcpy (mangled_name, physname);
267 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
269 else if (physname[0] == 't' || physname[0] == 'Q')
271 /* The physname for template and qualified methods already includes
273 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
279 sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len);
281 mangled_name_len = ((is_constructor ? 0 : strlen (field_name))
282 + strlen (buf) + len + strlen (physname) + 1);
285 mangled_name = (char *) xmalloc (mangled_name_len);
287 mangled_name[0] = '\0';
289 strcpy (mangled_name, field_name);
291 strcat (mangled_name, buf);
292 /* If the class doesn't have a name, i.e. newname NULL, then we just
293 mangle it using 0 for the length of the class. Thus it gets mangled
294 as something starting with `::' rather than `classname::'. */
296 strcat (mangled_name, newname);
298 strcat (mangled_name, physname);
299 return (mangled_name);
304 /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
306 struct partial_symtab *
307 find_pc_sect_psymtab (CORE_ADDR pc, asection *section)
309 register struct partial_symtab *pst;
310 register struct objfile *objfile;
312 ALL_PSYMTABS (objfile, pst)
314 if (pc >= pst->textlow && pc < pst->texthigh)
316 struct minimal_symbol *msymbol;
317 struct partial_symtab *tpst;
319 /* An objfile that has its functions reordered might have
320 many partial symbol tables containing the PC, but
321 we want the partial symbol table that contains the
322 function containing the PC. */
323 if (!(objfile->flags & OBJF_REORDERED) &&
324 section == 0) /* can't validate section this way */
327 msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
331 for (tpst = pst; tpst != NULL; tpst = tpst->next)
333 if (pc >= tpst->textlow && pc < tpst->texthigh)
335 struct partial_symbol *p;
337 p = find_pc_sect_psymbol (tpst, pc, section);
339 && SYMBOL_VALUE_ADDRESS (p)
340 == SYMBOL_VALUE_ADDRESS (msymbol))
350 /* Find which partial symtab contains PC. Return 0 if none.
351 Backward compatibility, no section */
353 struct partial_symtab *
354 find_pc_psymtab (CORE_ADDR pc)
356 return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc));
359 /* Find which partial symbol within a psymtab matches PC and SECTION.
360 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
362 struct partial_symbol *
363 find_pc_sect_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc,
366 struct partial_symbol *best = NULL, *p, **pp;
370 psymtab = find_pc_sect_psymtab (pc, section);
374 /* Cope with programs that start at address 0 */
375 best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0;
377 /* Search the global symbols as well as the static symbols, so that
378 find_pc_partial_function doesn't use a minimal symbol and thus
379 cache a bad endaddr. */
380 for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset;
381 (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset)
382 < psymtab->n_global_syms);
386 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
387 && SYMBOL_CLASS (p) == LOC_BLOCK
388 && pc >= SYMBOL_VALUE_ADDRESS (p)
389 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
390 || (psymtab->textlow == 0
391 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
393 if (section) /* match on a specific section */
395 fixup_psymbol_section (p, psymtab->objfile);
396 if (SYMBOL_BFD_SECTION (p) != section)
399 best_pc = SYMBOL_VALUE_ADDRESS (p);
404 for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset;
405 (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset)
406 < psymtab->n_static_syms);
410 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
411 && SYMBOL_CLASS (p) == LOC_BLOCK
412 && pc >= SYMBOL_VALUE_ADDRESS (p)
413 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
414 || (psymtab->textlow == 0
415 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
417 if (section) /* match on a specific section */
419 fixup_psymbol_section (p, psymtab->objfile);
420 if (SYMBOL_BFD_SECTION (p) != section)
423 best_pc = SYMBOL_VALUE_ADDRESS (p);
431 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
432 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
434 struct partial_symbol *
435 find_pc_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc)
437 return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc));
440 /* Debug symbols usually don't have section information. We need to dig that
441 out of the minimal symbols and stash that in the debug symbol. */
444 fixup_section (struct general_symbol_info *ginfo, struct objfile *objfile)
446 struct minimal_symbol *msym;
447 msym = lookup_minimal_symbol (ginfo->name, NULL, objfile);
451 ginfo->bfd_section = SYMBOL_BFD_SECTION (msym);
452 ginfo->section = SYMBOL_SECTION (msym);
457 fixup_symbol_section (struct symbol *sym, struct objfile *objfile)
462 if (SYMBOL_BFD_SECTION (sym))
465 fixup_section (&sym->ginfo, objfile);
470 struct partial_symbol *
471 fixup_psymbol_section (struct partial_symbol *psym, struct objfile *objfile)
476 if (SYMBOL_BFD_SECTION (psym))
479 fixup_section (&psym->ginfo, objfile);
484 /* Find the definition for a specified symbol name NAME
485 in namespace NAMESPACE, visible from lexical block BLOCK.
486 Returns the struct symbol pointer, or zero if no symbol is found.
487 If SYMTAB is non-NULL, store the symbol table in which the
488 symbol was found there, or NULL if not found.
489 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
490 NAME is a field of the current implied argument `this'. If so set
491 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
492 BLOCK_FOUND is set to the block in which NAME is found (in the case of
493 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
495 /* This function has a bunch of loops in it and it would seem to be
496 attractive to put in some QUIT's (though I'm not really sure
497 whether it can run long enough to be really important). But there
498 are a few calls for which it would appear to be bad news to quit
499 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
500 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
501 code below which can error(), but that probably doesn't affect
502 these calls since they are looking for a known variable and thus
503 can probably assume it will never hit the C++ code). */
506 lookup_symbol (const char *name, const struct block *block,
507 const namespace_enum namespace, int *is_a_field_of_this,
508 struct symtab **symtab)
510 char *modified_name = NULL;
511 char *modified_name2 = NULL;
512 int needtofreename = 0;
513 struct symbol *returnval;
515 if (case_sensitivity == case_sensitive_off)
521 copy = (char *) alloca (len + 1);
522 for (i= 0; i < len; i++)
523 copy[i] = tolower (name[i]);
525 modified_name = copy;
528 modified_name = (char *) name;
530 /* If we are using C++ language, demangle the name before doing a lookup, so
531 we can always binary search. */
532 if (current_language->la_language == language_cplus)
534 modified_name2 = cplus_demangle (modified_name, DMGL_ANSI | DMGL_PARAMS);
537 modified_name = modified_name2;
542 returnval = lookup_symbol_aux (modified_name, block, namespace,
543 is_a_field_of_this, symtab);
545 xfree (modified_name2);
550 static struct symbol *
551 lookup_symbol_aux (const char *name, const struct block *block,
552 const namespace_enum namespace, int *is_a_field_of_this,
553 struct symtab **symtab)
555 register struct symbol *sym;
556 register struct symtab *s = NULL;
557 register struct partial_symtab *ps;
558 register struct blockvector *bv;
559 register struct objfile *objfile = NULL;
560 register struct block *b;
561 register struct minimal_symbol *msymbol;
564 /* Search specified block and its superiors. */
568 sym = lookup_block_symbol (block, name, namespace);
574 /* Search the list of symtabs for one which contains the
575 address of the start of this block. */
576 ALL_SYMTABS (objfile, s)
578 bv = BLOCKVECTOR (s);
579 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
580 if (BLOCK_START (b) <= BLOCK_START (block)
581 && BLOCK_END (b) > BLOCK_START (block))
588 return fixup_symbol_section (sym, objfile);
590 block = BLOCK_SUPERBLOCK (block);
593 /* FIXME: this code is never executed--block is always NULL at this
594 point. What is it trying to do, anyway? We already should have
595 checked the STATIC_BLOCK above (it is the superblock of top-level
596 blocks). Why is VAR_NAMESPACE special-cased? */
597 /* Don't need to mess with the psymtabs; if we have a block,
598 that file is read in. If we don't, then we deal later with
599 all the psymtab stuff that needs checking. */
600 /* Note (RT): The following never-executed code looks unnecessary to me also.
601 * If we change the code to use the original (passed-in)
602 * value of 'block', we could cause it to execute, but then what
603 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
604 * 'block' was already searched by the above code. And the STATIC_BLOCK's
605 * of *other* symtabs (those files not containing 'block' lexically)
606 * should not contain 'block' address-wise. So we wouldn't expect this
607 * code to find any 'sym''s that were not found above. I vote for
608 * deleting the following paragraph of code.
610 if (namespace == VAR_NAMESPACE && block != NULL)
613 /* Find the right symtab. */
614 ALL_SYMTABS (objfile, s)
616 bv = BLOCKVECTOR (s);
617 b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
618 if (BLOCK_START (b) <= BLOCK_START (block)
619 && BLOCK_END (b) > BLOCK_START (block))
621 sym = lookup_block_symbol (b, name, VAR_NAMESPACE);
627 return fixup_symbol_section (sym, objfile);
634 /* C++: If requested to do so by the caller,
635 check to see if NAME is a field of `this'. */
636 if (is_a_field_of_this)
638 struct value *v = value_of_this (0);
640 *is_a_field_of_this = 0;
641 if (v && check_field (v, name))
643 *is_a_field_of_this = 1;
650 /* Now search all global blocks. Do the symtab's first, then
651 check the psymtab's. If a psymtab indicates the existence
652 of the desired name as a global, then do psymtab-to-symtab
653 conversion on the fly and return the found symbol. */
655 ALL_SYMTABS (objfile, s)
657 bv = BLOCKVECTOR (s);
658 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
659 sym = lookup_block_symbol (block, name, namespace);
665 return fixup_symbol_section (sym, objfile);
671 /* Check for the possibility of the symbol being a function or
672 a mangled variable that is stored in one of the minimal symbol tables.
673 Eventually, all global symbols might be resolved in this way. */
675 if (namespace == VAR_NAMESPACE)
677 msymbol = lookup_minimal_symbol (name, NULL, NULL);
680 s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol),
681 SYMBOL_BFD_SECTION (msymbol));
684 /* This is a function which has a symtab for its address. */
685 bv = BLOCKVECTOR (s);
686 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
687 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
689 /* We kept static functions in minimal symbol table as well as
690 in static scope. We want to find them in the symbol table. */
693 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
694 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
698 /* sym == 0 if symbol was found in the minimal symbol table
699 but not in the symtab.
700 Return 0 to use the msymbol definition of "foo_".
702 This happens for Fortran "foo_" symbols,
703 which are "foo" in the symtab.
705 This can also happen if "asm" is used to make a
706 regular symbol but not a debugging symbol, e.g.
713 return fixup_symbol_section (sym, objfile);
715 else if (MSYMBOL_TYPE (msymbol) != mst_text
716 && MSYMBOL_TYPE (msymbol) != mst_file_text
717 && !STREQ (name, SYMBOL_NAME (msymbol)))
719 /* This is a mangled variable, look it up by its
721 return lookup_symbol_aux (SYMBOL_NAME (msymbol), block,
722 namespace, is_a_field_of_this, symtab);
724 /* There are no debug symbols for this file, or we are looking
725 for an unmangled variable.
726 Try to find a matching static symbol below. */
732 ALL_PSYMTABS (objfile, ps)
734 if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace))
736 s = PSYMTAB_TO_SYMTAB (ps);
737 bv = BLOCKVECTOR (s);
738 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
739 sym = lookup_block_symbol (block, name, namespace);
742 /* This shouldn't be necessary, but as a last resort
743 * try looking in the statics even though the psymtab
744 * claimed the symbol was global. It's possible that
745 * the psymtab gets it wrong in some cases.
747 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
748 sym = lookup_block_symbol (block, name, namespace);
750 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
751 %s may be an inlined function, or may be a template function\n\
752 (if a template, try specifying an instantiation: %s<type>).",
753 name, ps->filename, name, name);
757 return fixup_symbol_section (sym, objfile);
761 /* Now search all static file-level symbols.
762 Not strictly correct, but more useful than an error.
763 Do the symtabs first, then check the psymtabs.
764 If a psymtab indicates the existence
765 of the desired name as a file-level static, then do psymtab-to-symtab
766 conversion on the fly and return the found symbol. */
768 ALL_SYMTABS (objfile, s)
770 bv = BLOCKVECTOR (s);
771 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
772 sym = lookup_block_symbol (block, name, namespace);
778 return fixup_symbol_section (sym, objfile);
782 ALL_PSYMTABS (objfile, ps)
784 if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace))
786 s = PSYMTAB_TO_SYMTAB (ps);
787 bv = BLOCKVECTOR (s);
788 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
789 sym = lookup_block_symbol (block, name, namespace);
792 /* This shouldn't be necessary, but as a last resort
793 * try looking in the globals even though the psymtab
794 * claimed the symbol was static. It's possible that
795 * the psymtab gets it wrong in some cases.
797 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
798 sym = lookup_block_symbol (block, name, namespace);
800 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
801 %s may be an inlined function, or may be a template function\n\
802 (if a template, try specifying an instantiation: %s<type>).",
803 name, ps->filename, name, name);
807 return fixup_symbol_section (sym, objfile);
813 /* Check for the possibility of the symbol being a function or
814 a global variable that is stored in one of the minimal symbol tables.
815 The "minimal symbol table" is built from linker-supplied info.
817 RT: I moved this check to last, after the complete search of
818 the global (p)symtab's and static (p)symtab's. For HP-generated
819 symbol tables, this check was causing a premature exit from
820 lookup_symbol with NULL return, and thus messing up symbol lookups
821 of things like "c::f". It seems to me a check of the minimal
822 symbol table ought to be a last resort in any case. I'm vaguely
823 worried about the comment below which talks about FORTRAN routines "foo_"
824 though... is it saying we need to do the "minsym" check before
825 the static check in this case?
828 if (namespace == VAR_NAMESPACE)
830 msymbol = lookup_minimal_symbol (name, NULL, NULL);
833 /* OK, we found a minimal symbol in spite of not
834 * finding any symbol. There are various possible
835 * explanations for this. One possibility is the symbol
836 * exists in code not compiled -g. Another possibility
837 * is that the 'psymtab' isn't doing its job.
838 * A third possibility, related to #2, is that we were confused
839 * by name-mangling. For instance, maybe the psymtab isn't
840 * doing its job because it only know about demangled
841 * names, but we were given a mangled name...
844 /* We first use the address in the msymbol to try to
845 * locate the appropriate symtab. Note that find_pc_symtab()
846 * has a side-effect of doing psymtab-to-symtab expansion,
847 * for the found symtab.
849 s = find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol));
852 bv = BLOCKVECTOR (s);
853 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
854 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
856 /* We kept static functions in minimal symbol table as well as
857 in static scope. We want to find them in the symbol table. */
860 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
861 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
864 /* If we found one, return it */
872 /* If we get here with sym == 0, the symbol was
873 found in the minimal symbol table
874 but not in the symtab.
875 Fall through and return 0 to use the msymbol
876 definition of "foo_".
877 (Note that outer code generally follows up a call
878 to this routine with a call to lookup_minimal_symbol(),
879 so a 0 return means we'll just flow into that other routine).
881 This happens for Fortran "foo_" symbols,
882 which are "foo" in the symtab.
884 This can also happen if "asm" is used to make a
885 regular symbol but not a debugging symbol, e.g.
891 /* If the lookup-by-address fails, try repeating the
892 * entire lookup process with the symbol name from
893 * the msymbol (if different from the original symbol name).
895 else if (MSYMBOL_TYPE (msymbol) != mst_text
896 && MSYMBOL_TYPE (msymbol) != mst_file_text
897 && !STREQ (name, SYMBOL_NAME (msymbol)))
899 return lookup_symbol_aux (SYMBOL_NAME (msymbol), block,
900 namespace, is_a_field_of_this, symtab);
912 /* Look, in partial_symtab PST, for symbol NAME. Check the global
913 symbols if GLOBAL, the static symbols if not */
915 static struct partial_symbol *
916 lookup_partial_symbol (struct partial_symtab *pst, const char *name, int global,
917 namespace_enum namespace)
919 struct partial_symbol *temp;
920 struct partial_symbol **start, **psym;
921 struct partial_symbol **top, **bottom, **center;
922 int length = (global ? pst->n_global_syms : pst->n_static_syms);
923 int do_linear_search = 1;
930 pst->objfile->global_psymbols.list + pst->globals_offset :
931 pst->objfile->static_psymbols.list + pst->statics_offset);
933 if (global) /* This means we can use a binary search. */
935 do_linear_search = 0;
937 /* Binary search. This search is guaranteed to end with center
938 pointing at the earliest partial symbol with the correct
939 name. At that point *all* partial symbols with that name
940 will be checked against the correct namespace. */
943 top = start + length - 1;
946 center = bottom + (top - bottom) / 2;
948 internal_error (__FILE__, __LINE__, "failed internal consistency check");
949 if (!do_linear_search
950 && (SYMBOL_LANGUAGE (*center) == language_java))
952 do_linear_search = 1;
954 if (strcmp (SYMBOL_SOURCE_NAME (*center), name) >= 0)
963 if (!(top == bottom))
964 internal_error (__FILE__, __LINE__, "failed internal consistency check");
966 /* djb - 2000-06-03 - Use SYMBOL_MATCHES_NAME, not a strcmp, so
967 we don't have to force a linear search on C++. Probably holds true
968 for JAVA as well, no way to check.*/
969 while (SYMBOL_MATCHES_NAME (*top,name))
971 if (SYMBOL_NAMESPACE (*top) == namespace)
979 /* Can't use a binary search or else we found during the binary search that
980 we should also do a linear search. */
982 if (do_linear_search)
984 for (psym = start; psym < start + length; psym++)
986 if (namespace == SYMBOL_NAMESPACE (*psym))
988 if (SYMBOL_MATCHES_NAME (*psym, name))
999 /* Look up a type named NAME in the struct_namespace. The type returned
1000 must not be opaque -- i.e., must have at least one field defined
1002 This code was modelled on lookup_symbol -- the parts not relevant to looking
1003 up types were just left out. In particular it's assumed here that types
1004 are available in struct_namespace and only at file-static or global blocks. */
1008 lookup_transparent_type (const char *name)
1010 register struct symbol *sym;
1011 register struct symtab *s = NULL;
1012 register struct partial_symtab *ps;
1013 struct blockvector *bv;
1014 register struct objfile *objfile;
1015 register struct block *block;
1017 /* Now search all the global symbols. Do the symtab's first, then
1018 check the psymtab's. If a psymtab indicates the existence
1019 of the desired name as a global, then do psymtab-to-symtab
1020 conversion on the fly and return the found symbol. */
1022 ALL_SYMTABS (objfile, s)
1024 bv = BLOCKVECTOR (s);
1025 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1026 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1027 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1029 return SYMBOL_TYPE (sym);
1033 ALL_PSYMTABS (objfile, ps)
1035 if (!ps->readin && lookup_partial_symbol (ps, name, 1, STRUCT_NAMESPACE))
1037 s = PSYMTAB_TO_SYMTAB (ps);
1038 bv = BLOCKVECTOR (s);
1039 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1040 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1043 /* This shouldn't be necessary, but as a last resort
1044 * try looking in the statics even though the psymtab
1045 * claimed the symbol was global. It's possible that
1046 * the psymtab gets it wrong in some cases.
1048 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1049 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1051 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
1052 %s may be an inlined function, or may be a template function\n\
1053 (if a template, try specifying an instantiation: %s<type>).",
1054 name, ps->filename, name, name);
1056 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1057 return SYMBOL_TYPE (sym);
1061 /* Now search the static file-level symbols.
1062 Not strictly correct, but more useful than an error.
1063 Do the symtab's first, then
1064 check the psymtab's. If a psymtab indicates the existence
1065 of the desired name as a file-level static, then do psymtab-to-symtab
1066 conversion on the fly and return the found symbol.
1069 ALL_SYMTABS (objfile, s)
1071 bv = BLOCKVECTOR (s);
1072 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1073 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1074 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1076 return SYMBOL_TYPE (sym);
1080 ALL_PSYMTABS (objfile, ps)
1082 if (!ps->readin && lookup_partial_symbol (ps, name, 0, STRUCT_NAMESPACE))
1084 s = PSYMTAB_TO_SYMTAB (ps);
1085 bv = BLOCKVECTOR (s);
1086 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1087 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1090 /* This shouldn't be necessary, but as a last resort
1091 * try looking in the globals even though the psymtab
1092 * claimed the symbol was static. It's possible that
1093 * the psymtab gets it wrong in some cases.
1095 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1096 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1098 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
1099 %s may be an inlined function, or may be a template function\n\
1100 (if a template, try specifying an instantiation: %s<type>).",
1101 name, ps->filename, name, name);
1103 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1104 return SYMBOL_TYPE (sym);
1107 return (struct type *) 0;
1111 /* Find the psymtab containing main(). */
1112 /* FIXME: What about languages without main() or specially linked
1113 executables that have no main() ? */
1115 struct partial_symtab *
1116 find_main_psymtab (void)
1118 register struct partial_symtab *pst;
1119 register struct objfile *objfile;
1121 ALL_PSYMTABS (objfile, pst)
1123 if (lookup_partial_symbol (pst, main_name (), 1, VAR_NAMESPACE))
1131 /* Search BLOCK for symbol NAME in NAMESPACE.
1133 Note that if NAME is the demangled form of a C++ symbol, we will fail
1134 to find a match during the binary search of the non-encoded names, but
1135 for now we don't worry about the slight inefficiency of looking for
1136 a match we'll never find, since it will go pretty quick. Once the
1137 binary search terminates, we drop through and do a straight linear
1138 search on the symbols. Each symbol which is marked as being a C++
1139 symbol (language_cplus set) has both the encoded and non-encoded names
1140 tested for a match. */
1143 lookup_block_symbol (register const struct block *block, const char *name,
1144 const namespace_enum namespace)
1146 register int bot, top, inc;
1147 register struct symbol *sym;
1148 register struct symbol *sym_found = NULL;
1149 register int do_linear_search = 1;
1151 /* If the blocks's symbols were sorted, start with a binary search. */
1153 if (BLOCK_SHOULD_SORT (block))
1155 /* Reset the linear search flag so if the binary search fails, we
1156 won't do the linear search once unless we find some reason to
1159 do_linear_search = 0;
1160 top = BLOCK_NSYMS (block);
1163 /* Advance BOT to not far before the first symbol whose name is NAME. */
1167 inc = (top - bot + 1);
1168 /* No need to keep binary searching for the last few bits worth. */
1173 inc = (inc >> 1) + bot;
1174 sym = BLOCK_SYM (block, inc);
1175 if (!do_linear_search && (SYMBOL_LANGUAGE (sym) == language_java))
1177 do_linear_search = 1;
1179 if (SYMBOL_SOURCE_NAME (sym)[0] < name[0])
1183 else if (SYMBOL_SOURCE_NAME (sym)[0] > name[0])
1187 else if (strcmp (SYMBOL_SOURCE_NAME (sym), name) < 0)
1197 /* Now scan forward until we run out of symbols, find one whose
1198 name is greater than NAME, or find one we want. If there is
1199 more than one symbol with the right name and namespace, we
1200 return the first one; I believe it is now impossible for us
1201 to encounter two symbols with the same name and namespace
1202 here, because blocks containing argument symbols are no
1205 top = BLOCK_NSYMS (block);
1208 sym = BLOCK_SYM (block, bot);
1209 if (SYMBOL_NAMESPACE (sym) == namespace &&
1210 SYMBOL_MATCHES_NAME (sym, name))
1218 /* Here if block isn't sorted, or we fail to find a match during the
1219 binary search above. If during the binary search above, we find a
1220 symbol which is a Java symbol, then we have re-enabled the linear
1221 search flag which was reset when starting the binary search.
1223 This loop is equivalent to the loop above, but hacked greatly for speed.
1225 Note that parameter symbols do not always show up last in the
1226 list; this loop makes sure to take anything else other than
1227 parameter symbols first; it only uses parameter symbols as a
1228 last resort. Note that this only takes up extra computation
1231 if (do_linear_search)
1233 top = BLOCK_NSYMS (block);
1237 sym = BLOCK_SYM (block, bot);
1238 if (SYMBOL_NAMESPACE (sym) == namespace &&
1239 SYMBOL_MATCHES_NAME (sym, name))
1241 /* If SYM has aliases, then use any alias that is active
1242 at the current PC. If no alias is active at the current
1243 PC, then use the main symbol.
1245 ?!? Is checking the current pc correct? Is this routine
1246 ever called to look up a symbol from another context?
1248 FIXME: No, it's not correct. If someone sets a
1249 conditional breakpoint at an address, then the
1250 breakpoint's `struct expression' should refer to the
1251 `struct symbol' appropriate for the breakpoint's
1252 address, which may not be the PC.
1254 Even if it were never called from another context,
1255 it's totally bizarre for lookup_symbol's behavior to
1256 depend on the value of the inferior's current PC. We
1257 should pass in the appropriate PC as well as the
1258 block. The interface to lookup_symbol should change
1259 to require the caller to provide a PC. */
1261 if (SYMBOL_ALIASES (sym))
1262 sym = find_active_alias (sym, read_pc ());
1265 if (SYMBOL_CLASS (sym) != LOC_ARG &&
1266 SYMBOL_CLASS (sym) != LOC_LOCAL_ARG &&
1267 SYMBOL_CLASS (sym) != LOC_REF_ARG &&
1268 SYMBOL_CLASS (sym) != LOC_REGPARM &&
1269 SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR &&
1270 SYMBOL_CLASS (sym) != LOC_BASEREG_ARG)
1278 return (sym_found); /* Will be NULL if not found. */
1281 /* Given a main symbol SYM and ADDR, search through the alias
1282 list to determine if an alias is active at ADDR and return
1285 If no alias is active, then return SYM. */
1287 static struct symbol *
1288 find_active_alias (struct symbol *sym, CORE_ADDR addr)
1290 struct range_list *r;
1291 struct alias_list *aliases;
1293 /* If we have aliases, check them first. */
1294 aliases = SYMBOL_ALIASES (sym);
1298 if (!SYMBOL_RANGES (aliases->sym))
1299 return aliases->sym;
1300 for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next)
1302 if (r->start <= addr && r->end > addr)
1303 return aliases->sym;
1305 aliases = aliases->next;
1308 /* Nothing found, return the main symbol. */
1313 /* Return the symbol for the function which contains a specified
1314 lexical block, described by a struct block BL. */
1317 block_function (struct block *bl)
1319 while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0)
1320 bl = BLOCK_SUPERBLOCK (bl);
1322 return BLOCK_FUNCTION (bl);
1325 /* Find the symtab associated with PC and SECTION. Look through the
1326 psymtabs and read in another symtab if necessary. */
1329 find_pc_sect_symtab (CORE_ADDR pc, asection *section)
1331 register struct block *b;
1332 struct blockvector *bv;
1333 register struct symtab *s = NULL;
1334 register struct symtab *best_s = NULL;
1335 register struct partial_symtab *ps;
1336 register struct objfile *objfile;
1337 CORE_ADDR distance = 0;
1339 /* Search all symtabs for the one whose file contains our address, and which
1340 is the smallest of all the ones containing the address. This is designed
1341 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1342 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1343 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1345 This happens for native ecoff format, where code from included files
1346 gets its own symtab. The symtab for the included file should have
1347 been read in already via the dependency mechanism.
1348 It might be swifter to create several symtabs with the same name
1349 like xcoff does (I'm not sure).
1351 It also happens for objfiles that have their functions reordered.
1352 For these, the symtab we are looking for is not necessarily read in. */
1354 ALL_SYMTABS (objfile, s)
1356 bv = BLOCKVECTOR (s);
1357 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1359 if (BLOCK_START (b) <= pc
1360 && BLOCK_END (b) > pc
1362 || BLOCK_END (b) - BLOCK_START (b) < distance))
1364 /* For an objfile that has its functions reordered,
1365 find_pc_psymtab will find the proper partial symbol table
1366 and we simply return its corresponding symtab. */
1367 /* In order to better support objfiles that contain both
1368 stabs and coff debugging info, we continue on if a psymtab
1370 if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs)
1372 ps = find_pc_sect_psymtab (pc, section);
1374 return PSYMTAB_TO_SYMTAB (ps);
1380 for (i = 0; i < b->nsyms; i++)
1382 fixup_symbol_section (b->sym[i], objfile);
1383 if (section == SYMBOL_BFD_SECTION (b->sym[i]))
1387 continue; /* no symbol in this symtab matches section */
1389 distance = BLOCK_END (b) - BLOCK_START (b);
1398 ps = find_pc_sect_psymtab (pc, section);
1402 /* Might want to error() here (in case symtab is corrupt and
1403 will cause a core dump), but maybe we can successfully
1404 continue, so let's not. */
1406 (Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n",
1408 s = PSYMTAB_TO_SYMTAB (ps);
1413 /* Find the symtab associated with PC. Look through the psymtabs and
1414 read in another symtab if necessary. Backward compatibility, no section */
1417 find_pc_symtab (CORE_ADDR pc)
1419 return find_pc_sect_symtab (pc, find_pc_mapped_section (pc));
1425 /* Find the closest symbol value (of any sort -- function or variable)
1426 for a given address value. Slow but complete. (currently unused,
1427 mainly because it is too slow. We could fix it if each symtab and
1428 psymtab had contained in it the addresses ranges of each of its
1429 sections, which also would be required to make things like "info
1430 line *0x2345" cause psymtabs to be converted to symtabs). */
1433 find_addr_symbol (CORE_ADDR addr, struct symtab **symtabp, CORE_ADDR *symaddrp)
1435 struct symtab *symtab, *best_symtab;
1436 struct objfile *objfile;
1437 register int bot, top;
1438 register struct symbol *sym;
1439 register CORE_ADDR sym_addr;
1440 struct block *block;
1443 /* Info on best symbol seen so far */
1445 register CORE_ADDR best_sym_addr = 0;
1446 struct symbol *best_sym = 0;
1448 /* FIXME -- we should pull in all the psymtabs, too! */
1449 ALL_SYMTABS (objfile, symtab)
1451 /* Search the global and static blocks in this symtab for
1452 the closest symbol-address to the desired address. */
1454 for (blocknum = GLOBAL_BLOCK; blocknum <= STATIC_BLOCK; blocknum++)
1457 block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), blocknum);
1458 top = BLOCK_NSYMS (block);
1459 for (bot = 0; bot < top; bot++)
1461 sym = BLOCK_SYM (block, bot);
1462 switch (SYMBOL_CLASS (sym))
1466 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1470 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1471 /* An indirect symbol really lives at *sym_addr,
1472 * so an indirection needs to be done.
1473 * However, I am leaving this commented out because it's
1474 * expensive, and it's possible that symbolization
1475 * could be done without an active process (in
1476 * case this read_memory will fail). RT
1477 sym_addr = read_memory_unsigned_integer
1478 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1483 sym_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
1490 if (sym_addr <= addr)
1491 if (sym_addr > best_sym_addr)
1493 /* Quit if we found an exact match. */
1495 best_sym_addr = sym_addr;
1496 best_symtab = symtab;
1497 if (sym_addr == addr)
1506 *symtabp = best_symtab;
1508 *symaddrp = best_sym_addr;
1513 /* Find the source file and line number for a given PC value and SECTION.
1514 Return a structure containing a symtab pointer, a line number,
1515 and a pc range for the entire source line.
1516 The value's .pc field is NOT the specified pc.
1517 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1518 use the line that ends there. Otherwise, in that case, the line
1519 that begins there is used. */
1521 /* The big complication here is that a line may start in one file, and end just
1522 before the start of another file. This usually occurs when you #include
1523 code in the middle of a subroutine. To properly find the end of a line's PC
1524 range, we must search all symtabs associated with this compilation unit, and
1525 find the one whose first PC is closer than that of the next line in this
1528 /* If it's worth the effort, we could be using a binary search. */
1530 struct symtab_and_line
1531 find_pc_sect_line (CORE_ADDR pc, struct sec *section, int notcurrent)
1534 register struct linetable *l;
1537 register struct linetable_entry *item;
1538 struct symtab_and_line val;
1539 struct blockvector *bv;
1540 struct minimal_symbol *msymbol;
1541 struct minimal_symbol *mfunsym;
1543 /* Info on best line seen so far, and where it starts, and its file. */
1545 struct linetable_entry *best = NULL;
1546 CORE_ADDR best_end = 0;
1547 struct symtab *best_symtab = 0;
1549 /* Store here the first line number
1550 of a file which contains the line at the smallest pc after PC.
1551 If we don't find a line whose range contains PC,
1552 we will use a line one less than this,
1553 with a range from the start of that file to the first line's pc. */
1554 struct linetable_entry *alt = NULL;
1555 struct symtab *alt_symtab = 0;
1557 /* Info on best line seen in this file. */
1559 struct linetable_entry *prev;
1561 /* If this pc is not from the current frame,
1562 it is the address of the end of a call instruction.
1563 Quite likely that is the start of the following statement.
1564 But what we want is the statement containing the instruction.
1565 Fudge the pc to make sure we get that. */
1567 INIT_SAL (&val); /* initialize to zeroes */
1572 /* elz: added this because this function returned the wrong
1573 information if the pc belongs to a stub (import/export)
1574 to call a shlib function. This stub would be anywhere between
1575 two functions in the target, and the line info was erroneously
1576 taken to be the one of the line before the pc.
1578 /* RT: Further explanation:
1580 * We have stubs (trampolines) inserted between procedures.
1582 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1583 * exists in the main image.
1585 * In the minimal symbol table, we have a bunch of symbols
1586 * sorted by start address. The stubs are marked as "trampoline",
1587 * the others appear as text. E.g.:
1589 * Minimal symbol table for main image
1590 * main: code for main (text symbol)
1591 * shr1: stub (trampoline symbol)
1592 * foo: code for foo (text symbol)
1594 * Minimal symbol table for "shr1" image:
1596 * shr1: code for shr1 (text symbol)
1599 * So the code below is trying to detect if we are in the stub
1600 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1601 * and if found, do the symbolization from the real-code address
1602 * rather than the stub address.
1604 * Assumptions being made about the minimal symbol table:
1605 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1606 * if we're really in the trampoline. If we're beyond it (say
1607 * we're in "foo" in the above example), it'll have a closer
1608 * symbol (the "foo" text symbol for example) and will not
1609 * return the trampoline.
1610 * 2. lookup_minimal_symbol_text() will find a real text symbol
1611 * corresponding to the trampoline, and whose address will
1612 * be different than the trampoline address. I put in a sanity
1613 * check for the address being the same, to avoid an
1614 * infinite recursion.
1616 msymbol = lookup_minimal_symbol_by_pc (pc);
1617 if (msymbol != NULL)
1618 if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline)
1620 mfunsym = lookup_minimal_symbol_text (SYMBOL_NAME (msymbol), NULL, NULL);
1621 if (mfunsym == NULL)
1622 /* I eliminated this warning since it is coming out
1623 * in the following situation:
1624 * gdb shmain // test program with shared libraries
1625 * (gdb) break shr1 // function in shared lib
1626 * Warning: In stub for ...
1627 * In the above situation, the shared lib is not loaded yet,
1628 * so of course we can't find the real func/line info,
1629 * but the "break" still works, and the warning is annoying.
1630 * So I commented out the warning. RT */
1631 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1633 else if (SYMBOL_VALUE (mfunsym) == SYMBOL_VALUE (msymbol))
1634 /* Avoid infinite recursion */
1635 /* See above comment about why warning is commented out */
1636 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1639 return find_pc_line (SYMBOL_VALUE (mfunsym), 0);
1643 s = find_pc_sect_symtab (pc, section);
1646 /* if no symbol information, return previous pc */
1653 bv = BLOCKVECTOR (s);
1655 /* Look at all the symtabs that share this blockvector.
1656 They all have the same apriori range, that we found was right;
1657 but they have different line tables. */
1659 for (; s && BLOCKVECTOR (s) == bv; s = s->next)
1661 /* Find the best line in this symtab. */
1668 /* I think len can be zero if the symtab lacks line numbers
1669 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1670 I'm not sure which, and maybe it depends on the symbol
1676 item = l->item; /* Get first line info */
1678 /* Is this file's first line closer than the first lines of other files?
1679 If so, record this file, and its first line, as best alternate. */
1680 if (item->pc > pc && (!alt || item->pc < alt->pc))
1686 for (i = 0; i < len; i++, item++)
1688 /* Leave prev pointing to the linetable entry for the last line
1689 that started at or before PC. */
1696 /* At this point, prev points at the line whose start addr is <= pc, and
1697 item points at the next line. If we ran off the end of the linetable
1698 (pc >= start of the last line), then prev == item. If pc < start of
1699 the first line, prev will not be set. */
1701 /* Is this file's best line closer than the best in the other files?
1702 If so, record this file, and its best line, as best so far. */
1704 if (prev && (!best || prev->pc > best->pc))
1709 /* Discard BEST_END if it's before the PC of the current BEST. */
1710 if (best_end <= best->pc)
1714 /* If another line (denoted by ITEM) is in the linetable and its
1715 PC is after BEST's PC, but before the current BEST_END, then
1716 use ITEM's PC as the new best_end. */
1717 if (best && i < len && item->pc > best->pc
1718 && (best_end == 0 || best_end > item->pc))
1719 best_end = item->pc;
1725 { /* If we didn't find any line # info, just
1731 val.symtab = alt_symtab;
1732 val.line = alt->line - 1;
1734 /* Don't return line 0, that means that we didn't find the line. */
1738 val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1744 val.symtab = best_symtab;
1745 val.line = best->line;
1747 if (best_end && (!alt || best_end < alt->pc))
1752 val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1754 val.section = section;
1758 /* Backward compatibility (no section) */
1760 struct symtab_and_line
1761 find_pc_line (CORE_ADDR pc, int notcurrent)
1765 section = find_pc_overlay (pc);
1766 if (pc_in_unmapped_range (pc, section))
1767 pc = overlay_mapped_address (pc, section);
1768 return find_pc_sect_line (pc, section, notcurrent);
1771 /* Find line number LINE in any symtab whose name is the same as
1774 If found, return the symtab that contains the linetable in which it was
1775 found, set *INDEX to the index in the linetable of the best entry
1776 found, and set *EXACT_MATCH nonzero if the value returned is an
1779 If not found, return NULL. */
1782 find_line_symtab (struct symtab *symtab, int line, int *index, int *exact_match)
1786 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1790 struct linetable *best_linetable;
1791 struct symtab *best_symtab;
1793 /* First try looking it up in the given symtab. */
1794 best_linetable = LINETABLE (symtab);
1795 best_symtab = symtab;
1796 best_index = find_line_common (best_linetable, line, &exact);
1797 if (best_index < 0 || !exact)
1799 /* Didn't find an exact match. So we better keep looking for
1800 another symtab with the same name. In the case of xcoff,
1801 multiple csects for one source file (produced by IBM's FORTRAN
1802 compiler) produce multiple symtabs (this is unavoidable
1803 assuming csects can be at arbitrary places in memory and that
1804 the GLOBAL_BLOCK of a symtab has a begin and end address). */
1806 /* BEST is the smallest linenumber > LINE so far seen,
1807 or 0 if none has been seen so far.
1808 BEST_INDEX and BEST_LINETABLE identify the item for it. */
1811 struct objfile *objfile;
1814 if (best_index >= 0)
1815 best = best_linetable->item[best_index].line;
1819 ALL_SYMTABS (objfile, s)
1821 struct linetable *l;
1824 if (!STREQ (symtab->filename, s->filename))
1827 ind = find_line_common (l, line, &exact);
1837 if (best == 0 || l->item[ind].line < best)
1839 best = l->item[ind].line;
1852 *index = best_index;
1854 *exact_match = exact;
1859 /* Set the PC value for a given source file and line number and return true.
1860 Returns zero for invalid line number (and sets the PC to 0).
1861 The source file is specified with a struct symtab. */
1864 find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc)
1866 struct linetable *l;
1873 symtab = find_line_symtab (symtab, line, &ind, NULL);
1876 l = LINETABLE (symtab);
1877 *pc = l->item[ind].pc;
1884 /* Find the range of pc values in a line.
1885 Store the starting pc of the line into *STARTPTR
1886 and the ending pc (start of next line) into *ENDPTR.
1887 Returns 1 to indicate success.
1888 Returns 0 if could not find the specified line. */
1891 find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr,
1894 CORE_ADDR startaddr;
1895 struct symtab_and_line found_sal;
1898 if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr))
1901 /* This whole function is based on address. For example, if line 10 has
1902 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
1903 "info line *0x123" should say the line goes from 0x100 to 0x200
1904 and "info line *0x355" should say the line goes from 0x300 to 0x400.
1905 This also insures that we never give a range like "starts at 0x134
1906 and ends at 0x12c". */
1908 found_sal = find_pc_sect_line (startaddr, sal.section, 0);
1909 if (found_sal.line != sal.line)
1911 /* The specified line (sal) has zero bytes. */
1912 *startptr = found_sal.pc;
1913 *endptr = found_sal.pc;
1917 *startptr = found_sal.pc;
1918 *endptr = found_sal.end;
1923 /* Given a line table and a line number, return the index into the line
1924 table for the pc of the nearest line whose number is >= the specified one.
1925 Return -1 if none is found. The value is >= 0 if it is an index.
1927 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
1930 find_line_common (register struct linetable *l, register int lineno,
1936 /* BEST is the smallest linenumber > LINENO so far seen,
1937 or 0 if none has been seen so far.
1938 BEST_INDEX identifies the item for it. */
1940 int best_index = -1;
1949 for (i = 0; i < len; i++)
1951 register struct linetable_entry *item = &(l->item[i]);
1953 if (item->line == lineno)
1955 /* Return the first (lowest address) entry which matches. */
1960 if (item->line > lineno && (best == 0 || item->line < best))
1967 /* If we got here, we didn't get an exact match. */
1974 find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr)
1976 struct symtab_and_line sal;
1977 sal = find_pc_line (pc, 0);
1980 return sal.symtab != 0;
1983 /* Given a function symbol SYM, find the symtab and line for the start
1985 If the argument FUNFIRSTLINE is nonzero, we want the first line
1986 of real code inside the function. */
1988 struct symtab_and_line
1989 find_function_start_sal (struct symbol *sym, int funfirstline)
1992 struct symtab_and_line sal;
1994 pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
1995 fixup_symbol_section (sym, NULL);
1997 { /* skip "first line" of function (which is actually its prologue) */
1998 asection *section = SYMBOL_BFD_SECTION (sym);
1999 /* If function is in an unmapped overlay, use its unmapped LMA
2000 address, so that SKIP_PROLOGUE has something unique to work on */
2001 if (section_is_overlay (section) &&
2002 !section_is_mapped (section))
2003 pc = overlay_unmapped_address (pc, section);
2005 pc += FUNCTION_START_OFFSET;
2006 pc = SKIP_PROLOGUE (pc);
2008 /* For overlays, map pc back into its mapped VMA range */
2009 pc = overlay_mapped_address (pc, section);
2011 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2013 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2014 /* Convex: no need to suppress code on first line, if any */
2017 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2018 line is still part of the same function. */
2020 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end
2021 && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym)))
2023 /* First pc of next line */
2025 /* Recalculate the line number (might not be N+1). */
2026 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2034 /* If P is of the form "operator[ \t]+..." where `...' is
2035 some legitimate operator text, return a pointer to the
2036 beginning of the substring of the operator text.
2037 Otherwise, return "". */
2039 operator_chars (char *p, char **end)
2042 if (strncmp (p, "operator", 8))
2046 /* Don't get faked out by `operator' being part of a longer
2048 if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0')
2051 /* Allow some whitespace between `operator' and the operator symbol. */
2052 while (*p == ' ' || *p == '\t')
2055 /* Recognize 'operator TYPENAME'. */
2057 if (isalpha (*p) || *p == '_' || *p == '$')
2059 register char *q = p + 1;
2060 while (isalnum (*q) || *q == '_' || *q == '$')
2085 if (p[1] == '=' || p[1] == p[0])
2096 error ("`operator ()' must be specified without whitespace in `()'");
2101 error ("`operator ?:' must be specified without whitespace in `?:'");
2106 error ("`operator []' must be specified without whitespace in `[]'");
2110 error ("`operator %s' not supported", p);
2118 /* If FILE is not already in the table of files, return zero;
2119 otherwise return non-zero. Optionally add FILE to the table if ADD
2120 is non-zero. If *FIRST is non-zero, forget the old table
2123 filename_seen (const char *file, int add, int *first)
2125 /* Table of files seen so far. */
2126 static const char **tab = NULL;
2127 /* Allocated size of tab in elements.
2128 Start with one 256-byte block (when using GNU malloc.c).
2129 24 is the malloc overhead when range checking is in effect. */
2130 static int tab_alloc_size = (256 - 24) / sizeof (char *);
2131 /* Current size of tab in elements. */
2132 static int tab_cur_size;
2138 tab = (const char **) xmalloc (tab_alloc_size * sizeof (*tab));
2142 /* Is FILE in tab? */
2143 for (p = tab; p < tab + tab_cur_size; p++)
2144 if (strcmp (*p, file) == 0)
2147 /* No; maybe add it to tab. */
2150 if (tab_cur_size == tab_alloc_size)
2152 tab_alloc_size *= 2;
2153 tab = (const char **) xrealloc ((char *) tab,
2154 tab_alloc_size * sizeof (*tab));
2156 tab[tab_cur_size++] = file;
2162 /* Slave routine for sources_info. Force line breaks at ,'s.
2163 NAME is the name to print and *FIRST is nonzero if this is the first
2164 name printed. Set *FIRST to zero. */
2166 output_source_filename (char *name, int *first)
2168 /* Since a single source file can result in several partial symbol
2169 tables, we need to avoid printing it more than once. Note: if
2170 some of the psymtabs are read in and some are not, it gets
2171 printed both under "Source files for which symbols have been
2172 read" and "Source files for which symbols will be read in on
2173 demand". I consider this a reasonable way to deal with the
2174 situation. I'm not sure whether this can also happen for
2175 symtabs; it doesn't hurt to check. */
2177 /* Was NAME already seen? */
2178 if (filename_seen (name, 1, first))
2180 /* Yes; don't print it again. */
2183 /* No; print it and reset *FIRST. */
2190 printf_filtered (", ");
2194 fputs_filtered (name, gdb_stdout);
2198 sources_info (char *ignore, int from_tty)
2200 register struct symtab *s;
2201 register struct partial_symtab *ps;
2202 register struct objfile *objfile;
2205 if (!have_full_symbols () && !have_partial_symbols ())
2207 error ("No symbol table is loaded. Use the \"file\" command.");
2210 printf_filtered ("Source files for which symbols have been read in:\n\n");
2213 ALL_SYMTABS (objfile, s)
2215 output_source_filename (s->filename, &first);
2217 printf_filtered ("\n\n");
2219 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
2222 ALL_PSYMTABS (objfile, ps)
2226 output_source_filename (ps->filename, &first);
2229 printf_filtered ("\n");
2233 file_matches (char *file, char *files[], int nfiles)
2237 if (file != NULL && nfiles != 0)
2239 for (i = 0; i < nfiles; i++)
2241 if (strcmp (files[i], lbasename (file)) == 0)
2245 else if (nfiles == 0)
2250 /* Free any memory associated with a search. */
2252 free_search_symbols (struct symbol_search *symbols)
2254 struct symbol_search *p;
2255 struct symbol_search *next;
2257 for (p = symbols; p != NULL; p = next)
2265 do_free_search_symbols_cleanup (void *symbols)
2267 free_search_symbols (symbols);
2271 make_cleanup_free_search_symbols (struct symbol_search *symbols)
2273 return make_cleanup (do_free_search_symbols_cleanup, symbols);
2277 /* Search the symbol table for matches to the regular expression REGEXP,
2278 returning the results in *MATCHES.
2280 Only symbols of KIND are searched:
2281 FUNCTIONS_NAMESPACE - search all functions
2282 TYPES_NAMESPACE - search all type names
2283 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
2284 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
2285 and constants (enums)
2287 free_search_symbols should be called when *MATCHES is no longer needed.
2290 search_symbols (char *regexp, namespace_enum kind, int nfiles, char *files[],
2291 struct symbol_search **matches)
2293 register struct symtab *s;
2294 register struct partial_symtab *ps;
2295 register struct blockvector *bv;
2296 struct blockvector *prev_bv = 0;
2297 register struct block *b;
2300 register struct symbol *sym;
2301 struct partial_symbol **psym;
2302 struct objfile *objfile;
2303 struct minimal_symbol *msymbol;
2306 static enum minimal_symbol_type types[]
2308 {mst_data, mst_text, mst_abs, mst_unknown};
2309 static enum minimal_symbol_type types2[]
2311 {mst_bss, mst_file_text, mst_abs, mst_unknown};
2312 static enum minimal_symbol_type types3[]
2314 {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown};
2315 static enum minimal_symbol_type types4[]
2317 {mst_file_bss, mst_text, mst_abs, mst_unknown};
2318 enum minimal_symbol_type ourtype;
2319 enum minimal_symbol_type ourtype2;
2320 enum minimal_symbol_type ourtype3;
2321 enum minimal_symbol_type ourtype4;
2322 struct symbol_search *sr;
2323 struct symbol_search *psr;
2324 struct symbol_search *tail;
2325 struct cleanup *old_chain = NULL;
2327 if (kind < VARIABLES_NAMESPACE)
2328 error ("must search on specific namespace");
2330 ourtype = types[(int) (kind - VARIABLES_NAMESPACE)];
2331 ourtype2 = types2[(int) (kind - VARIABLES_NAMESPACE)];
2332 ourtype3 = types3[(int) (kind - VARIABLES_NAMESPACE)];
2333 ourtype4 = types4[(int) (kind - VARIABLES_NAMESPACE)];
2335 sr = *matches = NULL;
2340 /* Make sure spacing is right for C++ operators.
2341 This is just a courtesy to make the matching less sensitive
2342 to how many spaces the user leaves between 'operator'
2343 and <TYPENAME> or <OPERATOR>. */
2345 char *opname = operator_chars (regexp, &opend);
2348 int fix = -1; /* -1 means ok; otherwise number of spaces needed. */
2349 if (isalpha (*opname) || *opname == '_' || *opname == '$')
2351 /* There should 1 space between 'operator' and 'TYPENAME'. */
2352 if (opname[-1] != ' ' || opname[-2] == ' ')
2357 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
2358 if (opname[-1] == ' ')
2361 /* If wrong number of spaces, fix it. */
2364 char *tmp = (char *) alloca (opend - opname + 10);
2365 sprintf (tmp, "operator%.*s%s", fix, " ", opname);
2370 if (0 != (val = re_comp (regexp)))
2371 error ("Invalid regexp (%s): %s", val, regexp);
2374 /* Search through the partial symtabs *first* for all symbols
2375 matching the regexp. That way we don't have to reproduce all of
2376 the machinery below. */
2378 ALL_PSYMTABS (objfile, ps)
2380 struct partial_symbol **bound, **gbound, **sbound;
2386 gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms;
2387 sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms;
2390 /* Go through all of the symbols stored in a partial
2391 symtab in one loop. */
2392 psym = objfile->global_psymbols.list + ps->globals_offset;
2397 if (bound == gbound && ps->n_static_syms != 0)
2399 psym = objfile->static_psymbols.list + ps->statics_offset;
2410 /* If it would match (logic taken from loop below)
2411 load the file and go on to the next one */
2412 if (file_matches (ps->filename, files, nfiles)
2413 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (*psym))
2414 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (*psym) != LOC_TYPEDEF
2415 && SYMBOL_CLASS (*psym) != LOC_BLOCK)
2416 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK)
2417 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_TYPEDEF)
2418 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK))))
2420 PSYMTAB_TO_SYMTAB (ps);
2428 /* Here, we search through the minimal symbol tables for functions
2429 and variables that match, and force their symbols to be read.
2430 This is in particular necessary for demangled variable names,
2431 which are no longer put into the partial symbol tables.
2432 The symbol will then be found during the scan of symtabs below.
2434 For functions, find_pc_symtab should succeed if we have debug info
2435 for the function, for variables we have to call lookup_symbol
2436 to determine if the variable has debug info.
2437 If the lookup fails, set found_misc so that we will rescan to print
2438 any matching symbols without debug info.
2441 if (nfiles == 0 && (kind == VARIABLES_NAMESPACE || kind == FUNCTIONS_NAMESPACE))
2443 ALL_MSYMBOLS (objfile, msymbol)
2445 if (MSYMBOL_TYPE (msymbol) == ourtype ||
2446 MSYMBOL_TYPE (msymbol) == ourtype2 ||
2447 MSYMBOL_TYPE (msymbol) == ourtype3 ||
2448 MSYMBOL_TYPE (msymbol) == ourtype4)
2450 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
2452 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))
2454 if (kind == FUNCTIONS_NAMESPACE
2455 || lookup_symbol (SYMBOL_NAME (msymbol),
2456 (struct block *) NULL,
2458 0, (struct symtab **) NULL) == NULL)
2466 ALL_SYMTABS (objfile, s)
2468 bv = BLOCKVECTOR (s);
2469 /* Often many files share a blockvector.
2470 Scan each blockvector only once so that
2471 we don't get every symbol many times.
2472 It happens that the first symtab in the list
2473 for any given blockvector is the main file. */
2475 for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
2477 b = BLOCKVECTOR_BLOCK (bv, i);
2478 /* Skip the sort if this block is always sorted. */
2479 if (!BLOCK_SHOULD_SORT (b))
2480 sort_block_syms (b);
2481 for (j = 0; j < BLOCK_NSYMS (b); j++)
2484 sym = BLOCK_SYM (b, j);
2485 if (file_matches (s->filename, files, nfiles)
2486 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (sym))
2487 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (sym) != LOC_TYPEDEF
2488 && SYMBOL_CLASS (sym) != LOC_BLOCK
2489 && SYMBOL_CLASS (sym) != LOC_CONST)
2490 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK)
2491 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
2492 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK))))
2495 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
2499 psr->msymbol = NULL;
2504 old_chain = make_cleanup_free_search_symbols (sr);
2515 /* If there are no eyes, avoid all contact. I mean, if there are
2516 no debug symbols, then print directly from the msymbol_vector. */
2518 if (found_misc || kind != FUNCTIONS_NAMESPACE)
2520 ALL_MSYMBOLS (objfile, msymbol)
2522 if (MSYMBOL_TYPE (msymbol) == ourtype ||
2523 MSYMBOL_TYPE (msymbol) == ourtype2 ||
2524 MSYMBOL_TYPE (msymbol) == ourtype3 ||
2525 MSYMBOL_TYPE (msymbol) == ourtype4)
2527 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
2529 /* Functions: Look up by address. */
2530 if (kind != FUNCTIONS_NAMESPACE ||
2531 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))))
2533 /* Variables/Absolutes: Look up by name */
2534 if (lookup_symbol (SYMBOL_NAME (msymbol),
2535 (struct block *) NULL, VAR_NAMESPACE,
2536 0, (struct symtab **) NULL) == NULL)
2539 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
2541 psr->msymbol = msymbol;
2548 old_chain = make_cleanup_free_search_symbols (sr);
2562 discard_cleanups (old_chain);
2565 /* Helper function for symtab_symbol_info, this function uses
2566 the data returned from search_symbols() to print information
2567 regarding the match to gdb_stdout.
2570 print_symbol_info (namespace_enum kind, struct symtab *s, struct symbol *sym,
2571 int block, char *last)
2573 if (last == NULL || strcmp (last, s->filename) != 0)
2575 fputs_filtered ("\nFile ", gdb_stdout);
2576 fputs_filtered (s->filename, gdb_stdout);
2577 fputs_filtered (":\n", gdb_stdout);
2580 if (kind != TYPES_NAMESPACE && block == STATIC_BLOCK)
2581 printf_filtered ("static ");
2583 /* Typedef that is not a C++ class */
2584 if (kind == TYPES_NAMESPACE
2585 && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE)
2586 typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout);
2587 /* variable, func, or typedef-that-is-c++-class */
2588 else if (kind < TYPES_NAMESPACE ||
2589 (kind == TYPES_NAMESPACE &&
2590 SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE))
2592 type_print (SYMBOL_TYPE (sym),
2593 (SYMBOL_CLASS (sym) == LOC_TYPEDEF
2594 ? "" : SYMBOL_SOURCE_NAME (sym)),
2597 printf_filtered (";\n");
2602 /* Tiemann says: "info methods was never implemented." */
2603 char *demangled_name;
2604 c_type_print_base (TYPE_FN_FIELD_TYPE (t, block),
2606 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t, block),
2608 if (TYPE_FN_FIELD_STUB (t, block))
2609 check_stub_method (TYPE_DOMAIN_TYPE (type), j, block);
2611 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t, block),
2612 DMGL_ANSI | DMGL_PARAMS);
2613 if (demangled_name == NULL)
2614 fprintf_filtered (stream, "<badly mangled name %s>",
2615 TYPE_FN_FIELD_PHYSNAME (t, block));
2618 fputs_filtered (demangled_name, stream);
2619 xfree (demangled_name);
2625 /* This help function for symtab_symbol_info() prints information
2626 for non-debugging symbols to gdb_stdout.
2629 print_msymbol_info (struct minimal_symbol *msymbol)
2633 if (TARGET_ADDR_BIT <= 32)
2634 tmp = longest_local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol)
2635 & (CORE_ADDR) 0xffffffff,
2638 tmp = longest_local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol),
2640 printf_filtered ("%s %s\n",
2641 tmp, SYMBOL_SOURCE_NAME (msymbol));
2644 /* This is the guts of the commands "info functions", "info types", and
2645 "info variables". It calls search_symbols to find all matches and then
2646 print_[m]symbol_info to print out some useful information about the
2650 symtab_symbol_info (char *regexp, namespace_enum kind, int from_tty)
2652 static char *classnames[]
2654 {"variable", "function", "type", "method"};
2655 struct symbol_search *symbols;
2656 struct symbol_search *p;
2657 struct cleanup *old_chain;
2658 char *last_filename = NULL;
2661 /* must make sure that if we're interrupted, symbols gets freed */
2662 search_symbols (regexp, kind, 0, (char **) NULL, &symbols);
2663 old_chain = make_cleanup_free_search_symbols (symbols);
2665 printf_filtered (regexp
2666 ? "All %ss matching regular expression \"%s\":\n"
2667 : "All defined %ss:\n",
2668 classnames[(int) (kind - VARIABLES_NAMESPACE)], regexp);
2670 for (p = symbols; p != NULL; p = p->next)
2674 if (p->msymbol != NULL)
2678 printf_filtered ("\nNon-debugging symbols:\n");
2681 print_msymbol_info (p->msymbol);
2685 print_symbol_info (kind,
2690 last_filename = p->symtab->filename;
2694 do_cleanups (old_chain);
2698 variables_info (char *regexp, int from_tty)
2700 symtab_symbol_info (regexp, VARIABLES_NAMESPACE, from_tty);
2704 functions_info (char *regexp, int from_tty)
2706 symtab_symbol_info (regexp, FUNCTIONS_NAMESPACE, from_tty);
2711 types_info (char *regexp, int from_tty)
2713 symtab_symbol_info (regexp, TYPES_NAMESPACE, from_tty);
2717 /* Tiemann says: "info methods was never implemented." */
2719 methods_info (char *regexp)
2721 symtab_symbol_info (regexp, METHODS_NAMESPACE, 0, from_tty);
2725 /* Breakpoint all functions matching regular expression. */
2728 rbreak_command_wrapper (char *regexp, int from_tty)
2730 rbreak_command (regexp, from_tty);
2734 rbreak_command (char *regexp, int from_tty)
2736 struct symbol_search *ss;
2737 struct symbol_search *p;
2738 struct cleanup *old_chain;
2740 search_symbols (regexp, FUNCTIONS_NAMESPACE, 0, (char **) NULL, &ss);
2741 old_chain = make_cleanup_free_search_symbols (ss);
2743 for (p = ss; p != NULL; p = p->next)
2745 if (p->msymbol == NULL)
2747 char *string = (char *) alloca (strlen (p->symtab->filename)
2748 + strlen (SYMBOL_NAME (p->symbol))
2750 strcpy (string, p->symtab->filename);
2751 strcat (string, ":'");
2752 strcat (string, SYMBOL_NAME (p->symbol));
2753 strcat (string, "'");
2754 break_command (string, from_tty);
2755 print_symbol_info (FUNCTIONS_NAMESPACE,
2759 p->symtab->filename);
2763 break_command (SYMBOL_NAME (p->msymbol), from_tty);
2764 printf_filtered ("<function, no debug info> %s;\n",
2765 SYMBOL_SOURCE_NAME (p->msymbol));
2769 do_cleanups (old_chain);
2773 /* Return Nonzero if block a is lexically nested within block b,
2774 or if a and b have the same pc range.
2775 Return zero otherwise. */
2777 contained_in (struct block *a, struct block *b)
2781 return BLOCK_START (a) >= BLOCK_START (b)
2782 && BLOCK_END (a) <= BLOCK_END (b);
2786 /* Helper routine for make_symbol_completion_list. */
2788 static int return_val_size;
2789 static int return_val_index;
2790 static char **return_val;
2792 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
2794 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
2795 /* Put only the mangled name on the list. */ \
2796 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
2797 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
2798 completion_list_add_name \
2799 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
2801 completion_list_add_name \
2802 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
2805 /* Test to see if the symbol specified by SYMNAME (which is already
2806 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
2807 characters. If so, add it to the current completion list. */
2810 completion_list_add_name (char *symname, char *sym_text, int sym_text_len,
2811 char *text, char *word)
2816 /* clip symbols that cannot match */
2818 if (strncmp (symname, sym_text, sym_text_len) != 0)
2823 /* We have a match for a completion, so add SYMNAME to the current list
2824 of matches. Note that the name is moved to freshly malloc'd space. */
2828 if (word == sym_text)
2830 new = xmalloc (strlen (symname) + 5);
2831 strcpy (new, symname);
2833 else if (word > sym_text)
2835 /* Return some portion of symname. */
2836 new = xmalloc (strlen (symname) + 5);
2837 strcpy (new, symname + (word - sym_text));
2841 /* Return some of SYM_TEXT plus symname. */
2842 new = xmalloc (strlen (symname) + (sym_text - word) + 5);
2843 strncpy (new, word, sym_text - word);
2844 new[sym_text - word] = '\0';
2845 strcat (new, symname);
2848 if (return_val_index + 3 > return_val_size)
2850 newsize = (return_val_size *= 2) * sizeof (char *);
2851 return_val = (char **) xrealloc ((char *) return_val, newsize);
2853 return_val[return_val_index++] = new;
2854 return_val[return_val_index] = NULL;
2858 /* Return a NULL terminated array of all symbols (regardless of class)
2859 which begin by matching TEXT. If the answer is no symbols, then
2860 the return value is an array which contains only a NULL pointer.
2862 Problem: All of the symbols have to be copied because readline frees them.
2863 I'm not going to worry about this; hopefully there won't be that many. */
2866 make_symbol_completion_list (char *text, char *word)
2868 register struct symbol *sym;
2869 register struct symtab *s;
2870 register struct partial_symtab *ps;
2871 register struct minimal_symbol *msymbol;
2872 register struct objfile *objfile;
2873 register struct block *b, *surrounding_static_block = 0;
2875 struct partial_symbol **psym;
2876 /* The symbol we are completing on. Points in same buffer as text. */
2878 /* Length of sym_text. */
2881 /* Now look for the symbol we are supposed to complete on.
2882 FIXME: This should be language-specific. */
2886 char *quote_pos = NULL;
2888 /* First see if this is a quoted string. */
2890 for (p = text; *p != '\0'; ++p)
2892 if (quote_found != '\0')
2894 if (*p == quote_found)
2895 /* Found close quote. */
2897 else if (*p == '\\' && p[1] == quote_found)
2898 /* A backslash followed by the quote character
2899 doesn't end the string. */
2902 else if (*p == '\'' || *p == '"')
2908 if (quote_found == '\'')
2909 /* A string within single quotes can be a symbol, so complete on it. */
2910 sym_text = quote_pos + 1;
2911 else if (quote_found == '"')
2912 /* A double-quoted string is never a symbol, nor does it make sense
2913 to complete it any other way. */
2915 return_val = (char **) xmalloc (sizeof (char *));
2916 return_val[0] = NULL;
2921 /* It is not a quoted string. Break it based on the characters
2922 which are in symbols. */
2925 if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
2934 sym_text_len = strlen (sym_text);
2936 return_val_size = 100;
2937 return_val_index = 0;
2938 return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *));
2939 return_val[0] = NULL;
2941 /* Look through the partial symtabs for all symbols which begin
2942 by matching SYM_TEXT. Add each one that you find to the list. */
2944 ALL_PSYMTABS (objfile, ps)
2946 /* If the psymtab's been read in we'll get it when we search
2947 through the blockvector. */
2951 for (psym = objfile->global_psymbols.list + ps->globals_offset;
2952 psym < (objfile->global_psymbols.list + ps->globals_offset
2953 + ps->n_global_syms);
2956 /* If interrupted, then quit. */
2958 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
2961 for (psym = objfile->static_psymbols.list + ps->statics_offset;
2962 psym < (objfile->static_psymbols.list + ps->statics_offset
2963 + ps->n_static_syms);
2967 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
2971 /* At this point scan through the misc symbol vectors and add each
2972 symbol you find to the list. Eventually we want to ignore
2973 anything that isn't a text symbol (everything else will be
2974 handled by the psymtab code above). */
2976 ALL_MSYMBOLS (objfile, msymbol)
2979 COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word);
2982 /* Search upwards from currently selected frame (so that we can
2983 complete on local vars. */
2985 for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
2987 if (!BLOCK_SUPERBLOCK (b))
2989 surrounding_static_block = b; /* For elmin of dups */
2992 /* Also catch fields of types defined in this places which match our
2993 text string. Only complete on types visible from current context. */
2995 ALL_BLOCK_SYMBOLS (b, i, sym)
2997 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
2998 if (SYMBOL_CLASS (sym) == LOC_TYPEDEF)
3000 struct type *t = SYMBOL_TYPE (sym);
3001 enum type_code c = TYPE_CODE (t);
3003 if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT)
3005 for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++)
3007 if (TYPE_FIELD_NAME (t, j))
3009 completion_list_add_name (TYPE_FIELD_NAME (t, j),
3010 sym_text, sym_text_len, text, word);
3018 /* Go through the symtabs and check the externs and statics for
3019 symbols which match. */
3021 ALL_SYMTABS (objfile, s)
3024 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
3025 ALL_BLOCK_SYMBOLS (b, i, sym)
3027 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3031 ALL_SYMTABS (objfile, s)
3034 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
3035 /* Don't do this block twice. */
3036 if (b == surrounding_static_block)
3038 ALL_BLOCK_SYMBOLS (b, i, sym)
3040 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3044 return (return_val);
3047 /* Like make_symbol_completion_list, but returns a list of symbols
3048 defined in a source file FILE. */
3051 make_file_symbol_completion_list (char *text, char *word, char *srcfile)
3053 register struct symbol *sym;
3054 register struct symtab *s;
3055 register struct block *b;
3057 /* The symbol we are completing on. Points in same buffer as text. */
3059 /* Length of sym_text. */
3062 /* Now look for the symbol we are supposed to complete on.
3063 FIXME: This should be language-specific. */
3067 char *quote_pos = NULL;
3069 /* First see if this is a quoted string. */
3071 for (p = text; *p != '\0'; ++p)
3073 if (quote_found != '\0')
3075 if (*p == quote_found)
3076 /* Found close quote. */
3078 else if (*p == '\\' && p[1] == quote_found)
3079 /* A backslash followed by the quote character
3080 doesn't end the string. */
3083 else if (*p == '\'' || *p == '"')
3089 if (quote_found == '\'')
3090 /* A string within single quotes can be a symbol, so complete on it. */
3091 sym_text = quote_pos + 1;
3092 else if (quote_found == '"')
3093 /* A double-quoted string is never a symbol, nor does it make sense
3094 to complete it any other way. */
3096 return_val = (char **) xmalloc (sizeof (char *));
3097 return_val[0] = NULL;
3102 /* It is not a quoted string. Break it based on the characters
3103 which are in symbols. */
3106 if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
3115 sym_text_len = strlen (sym_text);
3117 return_val_size = 10;
3118 return_val_index = 0;
3119 return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *));
3120 return_val[0] = NULL;
3122 /* Find the symtab for SRCFILE (this loads it if it was not yet read
3124 s = lookup_symtab (srcfile);
3127 /* Maybe they typed the file with leading directories, while the
3128 symbol tables record only its basename. */
3129 const char *tail = lbasename (srcfile);
3132 s = lookup_symtab (tail);
3135 /* If we have no symtab for that file, return an empty list. */
3137 return (return_val);
3139 /* Go through this symtab and check the externs and statics for
3140 symbols which match. */
3142 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
3143 ALL_BLOCK_SYMBOLS (b, i, sym)
3145 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3148 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
3149 ALL_BLOCK_SYMBOLS (b, i, sym)
3151 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3154 return (return_val);
3157 /* A helper function for make_source_files_completion_list. It adds
3158 another file name to a list of possible completions, growing the
3159 list as necessary. */
3162 add_filename_to_list (const char *fname, char *text, char *word,
3163 char ***list, int *list_used, int *list_alloced)
3166 size_t fnlen = strlen (fname);
3168 if (*list_used + 1 >= *list_alloced)
3171 *list = (char **) xrealloc ((char *) *list,
3172 *list_alloced * sizeof (char *));
3177 /* Return exactly fname. */
3178 new = xmalloc (fnlen + 5);
3179 strcpy (new, fname);
3181 else if (word > text)
3183 /* Return some portion of fname. */
3184 new = xmalloc (fnlen + 5);
3185 strcpy (new, fname + (word - text));
3189 /* Return some of TEXT plus fname. */
3190 new = xmalloc (fnlen + (text - word) + 5);
3191 strncpy (new, word, text - word);
3192 new[text - word] = '\0';
3193 strcat (new, fname);
3195 (*list)[*list_used] = new;
3196 (*list)[++*list_used] = NULL;
3200 not_interesting_fname (const char *fname)
3202 static const char *illegal_aliens[] = {
3203 "_globals_", /* inserted by coff_symtab_read */
3208 for (i = 0; illegal_aliens[i]; i++)
3210 if (strcmp (fname, illegal_aliens[i]) == 0)
3216 /* Return a NULL terminated array of all source files whose names
3217 begin with matching TEXT. The file names are looked up in the
3218 symbol tables of this program. If the answer is no matchess, then
3219 the return value is an array which contains only a NULL pointer. */
3222 make_source_files_completion_list (char *text, char *word)
3224 register struct symtab *s;
3225 register struct partial_symtab *ps;
3226 register struct objfile *objfile;
3228 int list_alloced = 1;
3230 size_t text_len = strlen (text);
3231 char **list = (char **) xmalloc (list_alloced * sizeof (char *));
3232 const char *base_name;
3236 if (!have_full_symbols () && !have_partial_symbols ())
3239 ALL_SYMTABS (objfile, s)
3241 if (not_interesting_fname (s->filename))
3243 if (!filename_seen (s->filename, 1, &first)
3244 #if HAVE_DOS_BASED_FILE_SYSTEM
3245 && strncasecmp (s->filename, text, text_len) == 0
3247 && strncmp (s->filename, text, text_len) == 0
3251 /* This file matches for a completion; add it to the current
3253 add_filename_to_list (s->filename, text, word,
3254 &list, &list_used, &list_alloced);
3258 /* NOTE: We allow the user to type a base name when the
3259 debug info records leading directories, but not the other
3260 way around. This is what subroutines of breakpoint
3261 command do when they parse file names. */
3262 base_name = lbasename (s->filename);
3263 if (base_name != s->filename
3264 && !filename_seen (base_name, 1, &first)
3265 #if HAVE_DOS_BASED_FILE_SYSTEM
3266 && strncasecmp (base_name, text, text_len) == 0
3268 && strncmp (base_name, text, text_len) == 0
3271 add_filename_to_list (base_name, text, word,
3272 &list, &list_used, &list_alloced);
3276 ALL_PSYMTABS (objfile, ps)
3278 if (not_interesting_fname (ps->filename))
3282 if (!filename_seen (ps->filename, 1, &first)
3283 #if HAVE_DOS_BASED_FILE_SYSTEM
3284 && strncasecmp (ps->filename, text, text_len) == 0
3286 && strncmp (ps->filename, text, text_len) == 0
3290 /* This file matches for a completion; add it to the
3291 current list of matches. */
3292 add_filename_to_list (ps->filename, text, word,
3293 &list, &list_used, &list_alloced);
3298 base_name = lbasename (ps->filename);
3299 if (base_name != ps->filename
3300 && !filename_seen (base_name, 1, &first)
3301 #if HAVE_DOS_BASED_FILE_SYSTEM
3302 && strncasecmp (base_name, text, text_len) == 0
3304 && strncmp (base_name, text, text_len) == 0
3307 add_filename_to_list (base_name, text, word,
3308 &list, &list_used, &list_alloced);
3316 /* Determine if PC is in the prologue of a function. The prologue is the area
3317 between the first instruction of a function, and the first executable line.
3318 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
3320 If non-zero, func_start is where we think the prologue starts, possibly
3321 by previous examination of symbol table information.
3325 in_prologue (CORE_ADDR pc, CORE_ADDR func_start)
3327 struct symtab_and_line sal;
3328 CORE_ADDR func_addr, func_end;
3330 /* We have several sources of information we can consult to figure
3332 - Compilers usually emit line number info that marks the prologue
3333 as its own "source line". So the ending address of that "line"
3334 is the end of the prologue. If available, this is the most
3336 - The minimal symbols and partial symbols, which can usually tell
3337 us the starting and ending addresses of a function.
3338 - If we know the function's start address, we can call the
3339 architecture-defined SKIP_PROLOGUE function to analyze the
3340 instruction stream and guess where the prologue ends.
3341 - Our `func_start' argument; if non-zero, this is the caller's
3342 best guess as to the function's entry point. At the time of
3343 this writing, handle_inferior_event doesn't get this right, so
3344 it should be our last resort. */
3346 /* Consult the partial symbol table, to find which function
3348 if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end))
3350 CORE_ADDR prologue_end;
3352 /* We don't even have minsym information, so fall back to using
3353 func_start, if given. */
3355 return 1; /* We *might* be in a prologue. */
3357 prologue_end = SKIP_PROLOGUE (func_start);
3359 return func_start <= pc && pc < prologue_end;
3362 /* If we have line number information for the function, that's
3363 usually pretty reliable. */
3364 sal = find_pc_line (func_addr, 0);
3366 /* Now sal describes the source line at the function's entry point,
3367 which (by convention) is the prologue. The end of that "line",
3368 sal.end, is the end of the prologue.
3370 Note that, for functions whose source code is all on a single
3371 line, the line number information doesn't always end up this way.
3372 So we must verify that our purported end-of-prologue address is
3373 *within* the function, not at its start or end. */
3375 || sal.end <= func_addr
3376 || func_end <= sal.end)
3378 /* We don't have any good line number info, so use the minsym
3379 information, together with the architecture-specific prologue
3381 CORE_ADDR prologue_end = SKIP_PROLOGUE (func_addr);
3383 return func_addr <= pc && pc < prologue_end;
3386 /* We have line number info, and it looks good. */
3387 return func_addr <= pc && pc < sal.end;
3391 /* Begin overload resolution functions */
3392 /* Helper routine for make_symbol_completion_list. */
3394 static int sym_return_val_size;
3395 static int sym_return_val_index;
3396 static struct symbol **sym_return_val;
3398 /* Test to see if the symbol specified by SYMNAME (which is already
3399 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3400 characters. If so, add it to the current completion list. */
3403 overload_list_add_symbol (struct symbol *sym, char *oload_name)
3408 /* Get the demangled name without parameters */
3409 char *sym_name = cplus_demangle (SYMBOL_NAME (sym), DMGL_ARM | DMGL_ANSI);
3412 sym_name = (char *) xmalloc (strlen (SYMBOL_NAME (sym)) + 1);
3413 strcpy (sym_name, SYMBOL_NAME (sym));
3416 /* skip symbols that cannot match */
3417 if (strcmp (sym_name, oload_name) != 0)
3423 /* If there is no type information, we can't do anything, so skip */
3424 if (SYMBOL_TYPE (sym) == NULL)
3427 /* skip any symbols that we've already considered. */
3428 for (i = 0; i < sym_return_val_index; ++i)
3429 if (!strcmp (SYMBOL_NAME (sym), SYMBOL_NAME (sym_return_val[i])))
3432 /* We have a match for an overload instance, so add SYM to the current list
3433 * of overload instances */
3434 if (sym_return_val_index + 3 > sym_return_val_size)
3436 newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *);
3437 sym_return_val = (struct symbol **) xrealloc ((char *) sym_return_val, newsize);
3439 sym_return_val[sym_return_val_index++] = sym;
3440 sym_return_val[sym_return_val_index] = NULL;
3445 /* Return a null-terminated list of pointers to function symbols that
3446 * match name of the supplied symbol FSYM.
3447 * This is used in finding all overloaded instances of a function name.
3448 * This has been modified from make_symbol_completion_list. */
3452 make_symbol_overload_list (struct symbol *fsym)
3454 register struct symbol *sym;
3455 register struct symtab *s;
3456 register struct partial_symtab *ps;
3457 register struct objfile *objfile;
3458 register struct block *b, *surrounding_static_block = 0;
3460 /* The name we are completing on. */
3461 char *oload_name = NULL;
3462 /* Length of name. */
3463 int oload_name_len = 0;
3465 /* Look for the symbol we are supposed to complete on.
3466 * FIXME: This should be language-specific. */
3468 oload_name = cplus_demangle (SYMBOL_NAME (fsym), DMGL_ARM | DMGL_ANSI);
3471 oload_name = (char *) xmalloc (strlen (SYMBOL_NAME (fsym)) + 1);
3472 strcpy (oload_name, SYMBOL_NAME (fsym));
3474 oload_name_len = strlen (oload_name);
3476 sym_return_val_size = 100;
3477 sym_return_val_index = 0;
3478 sym_return_val = (struct symbol **) xmalloc ((sym_return_val_size + 1) * sizeof (struct symbol *));
3479 sym_return_val[0] = NULL;
3481 /* Look through the partial symtabs for all symbols which begin
3482 by matching OLOAD_NAME. Make sure we read that symbol table in. */
3484 ALL_PSYMTABS (objfile, ps)
3486 struct partial_symbol **psym;
3488 /* If the psymtab's been read in we'll get it when we search
3489 through the blockvector. */
3493 for (psym = objfile->global_psymbols.list + ps->globals_offset;
3494 psym < (objfile->global_psymbols.list + ps->globals_offset
3495 + ps->n_global_syms);
3498 /* If interrupted, then quit. */
3500 /* This will cause the symbol table to be read if it has not yet been */
3501 s = PSYMTAB_TO_SYMTAB (ps);
3504 for (psym = objfile->static_psymbols.list + ps->statics_offset;
3505 psym < (objfile->static_psymbols.list + ps->statics_offset
3506 + ps->n_static_syms);
3510 /* This will cause the symbol table to be read if it has not yet been */
3511 s = PSYMTAB_TO_SYMTAB (ps);
3515 /* Search upwards from currently selected frame (so that we can
3516 complete on local vars. */
3518 for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
3520 if (!BLOCK_SUPERBLOCK (b))
3522 surrounding_static_block = b; /* For elimination of dups */
3525 /* Also catch fields of types defined in this places which match our
3526 text string. Only complete on types visible from current context. */
3528 ALL_BLOCK_SYMBOLS (b, i, sym)
3530 overload_list_add_symbol (sym, oload_name);
3534 /* Go through the symtabs and check the externs and statics for
3535 symbols which match. */
3537 ALL_SYMTABS (objfile, s)
3540 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
3541 ALL_BLOCK_SYMBOLS (b, i, sym)
3543 overload_list_add_symbol (sym, oload_name);
3547 ALL_SYMTABS (objfile, s)
3550 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
3551 /* Don't do this block twice. */
3552 if (b == surrounding_static_block)
3554 ALL_BLOCK_SYMBOLS (b, i, sym)
3556 overload_list_add_symbol (sym, oload_name);
3562 return (sym_return_val);
3565 /* End of overload resolution functions */
3567 struct symtabs_and_lines
3568 decode_line_spec (char *string, int funfirstline)
3570 struct symtabs_and_lines sals;
3572 error ("Empty line specification.");
3573 sals = decode_line_1 (&string, funfirstline,
3574 current_source_symtab, current_source_line,
3577 error ("Junk at end of line specification: %s", string);
3582 static char *name_of_main;
3585 set_main_name (const char *name)
3587 if (name_of_main != NULL)
3589 xfree (name_of_main);
3590 name_of_main = NULL;
3594 name_of_main = xstrdup (name);
3601 if (name_of_main != NULL)
3602 return name_of_main;
3609 _initialize_symtab (void)
3611 add_info ("variables", variables_info,
3612 "All global and static variable names, or those matching REGEXP.");
3614 add_com ("whereis", class_info, variables_info,
3615 "All global and static variable names, or those matching REGEXP.");
3617 add_info ("functions", functions_info,
3618 "All function names, or those matching REGEXP.");
3621 /* FIXME: This command has at least the following problems:
3622 1. It prints builtin types (in a very strange and confusing fashion).
3623 2. It doesn't print right, e.g. with
3624 typedef struct foo *FOO
3625 type_print prints "FOO" when we want to make it (in this situation)
3626 print "struct foo *".
3627 I also think "ptype" or "whatis" is more likely to be useful (but if
3628 there is much disagreement "info types" can be fixed). */
3629 add_info ("types", types_info,
3630 "All type names, or those matching REGEXP.");
3633 add_info ("methods", methods_info,
3634 "All method names, or those matching REGEXP::REGEXP.\n\
3635 If the class qualifier is omitted, it is assumed to be the current scope.\n\
3636 If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
3639 add_info ("sources", sources_info,
3640 "Source files in the program.");
3642 add_com ("rbreak", class_breakpoint, rbreak_command,
3643 "Set a breakpoint for all functions matching REGEXP.");
3647 add_com ("lf", class_info, sources_info, "Source files in the program");
3648 add_com ("lg", class_info, variables_info,
3649 "All global and static variable names, or those matching REGEXP.");
3652 /* Initialize the one built-in type that isn't language dependent... */
3653 builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0,
3654 "<unknown type>", (struct objfile *) NULL);