1 /* Symbol table lookup for the GNU debugger, GDB.
2 Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
3 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
32 #include "call-cmds.h"
33 #include "gdb_regex.h"
34 #include "expression.h"
41 #include <sys/types.h>
43 #include "gdb_string.h"
47 /* Prototype for one function in parser-defs.h,
48 instead of including that entire file. */
50 extern char *find_template_name_end (char *);
52 /* Prototypes for local functions */
54 static int find_methods (struct type *, char *, struct symbol **);
56 static void completion_list_add_name (char *, char *, int, char *, char *);
58 static void build_canonical_line_spec (struct symtab_and_line *,
61 static struct symtabs_and_lines decode_line_2 (struct symbol *[],
64 static void rbreak_command (char *, int);
66 static void types_info (char *, int);
68 static void functions_info (char *, int);
70 static void variables_info (char *, int);
72 static void sources_info (char *, int);
74 static void output_source_filename (char *, int *);
76 char *operator_chars (char *, char **);
78 static int find_line_common (struct linetable *, int, int *);
80 static struct partial_symbol *lookup_partial_symbol PARAMS
81 ((struct partial_symtab *, const char *,
82 int, namespace_enum));
84 static struct partial_symbol *fixup_psymbol_section (struct
88 static struct symtab *lookup_symtab_1 (char *);
90 static void cplusplus_hint (char *);
92 static struct symbol *find_active_alias (struct symbol *sym, CORE_ADDR addr);
94 /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
95 /* Signals the presence of objects compiled by HP compilers */
96 int hp_som_som_object_present = 0;
98 static void fixup_section (struct general_symbol_info *, struct objfile *);
100 static int file_matches (char *, char **, int);
102 static void print_symbol_info (namespace_enum,
103 struct symtab *, struct symbol *, int, char *);
105 static void print_msymbol_info (struct minimal_symbol *);
107 static void symtab_symbol_info (char *, namespace_enum, int);
109 static void overload_list_add_symbol (struct symbol *sym, char *oload_name);
111 void _initialize_symtab (void);
115 /* The single non-language-specific builtin type */
116 struct type *builtin_type_error;
118 /* Block in which the most recently searched-for symbol was found.
119 Might be better to make this a parameter to lookup_symbol and
122 const struct block *block_found;
124 char no_symtab_msg[] = "No symbol table is loaded. Use the \"file\" command.";
126 /* While the C++ support is still in flux, issue a possibly helpful hint on
127 using the new command completion feature on single quoted demangled C++
128 symbols. Remove when loose ends are cleaned up. FIXME -fnf */
131 cplusplus_hint (name)
134 while (*name == '\'')
136 printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name);
137 printf_filtered ("(Note leading single quote.)\n");
140 /* Check for a symtab of a specific name; first in symtabs, then in
141 psymtabs. *If* there is no '/' in the name, a match after a '/'
142 in the symtab filename will also work. */
144 static struct symtab *
145 lookup_symtab_1 (name)
148 register struct symtab *s;
149 register struct partial_symtab *ps;
150 register char *slash;
151 register struct objfile *objfile;
155 /* First, search for an exact match */
157 ALL_SYMTABS (objfile, s)
158 if (STREQ (name, s->filename))
161 slash = strchr (name, '/');
163 /* Now, search for a matching tail (only if name doesn't have any dirs) */
166 ALL_SYMTABS (objfile, s)
168 char *p = s->filename;
169 char *tail = strrchr (p, '/');
178 /* Same search rules as above apply here, but now we look thru the
181 ps = lookup_partial_symtab (name);
186 error ("Internal: readin %s pst for `%s' found when no symtab found.",
189 s = PSYMTAB_TO_SYMTAB (ps);
194 /* At this point, we have located the psymtab for this file, but
195 the conversion to a symtab has failed. This usually happens
196 when we are looking up an include file. In this case,
197 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
198 been created. So, we need to run through the symtabs again in
199 order to find the file.
200 XXX - This is a crock, and should be fixed inside of the the
201 symbol parsing routines. */
205 /* Lookup the symbol table of a source file named NAME. Try a couple
206 of variations if the first lookup doesn't work. */
212 register struct symtab *s;
217 s = lookup_symtab_1 (name);
222 /* This screws c-exp.y:yylex if there is both a type "tree" and a symtab
225 /* If name not found as specified, see if adding ".c" helps. */
226 /* Why is this? Is it just a user convenience? (If so, it's pretty
227 questionable in the presence of C++, FORTRAN, etc.). It's not in
230 copy = (char *) alloca (strlen (name) + 3);
233 s = lookup_symtab_1 (copy);
238 /* We didn't find anything; die. */
242 /* Lookup the partial symbol table of a source file named NAME.
243 *If* there is no '/' in the name, a match after a '/'
244 in the psymtab filename will also work. */
246 struct partial_symtab *
247 lookup_partial_symtab (name)
250 register struct partial_symtab *pst;
251 register struct objfile *objfile;
253 ALL_PSYMTABS (objfile, pst)
255 if (STREQ (name, pst->filename))
261 /* Now, search for a matching tail (only if name doesn't have any dirs) */
263 if (!strchr (name, '/'))
264 ALL_PSYMTABS (objfile, pst)
266 char *p = pst->filename;
267 char *tail = strrchr (p, '/');
279 /* Mangle a GDB method stub type. This actually reassembles the pieces of the
280 full method name, which consist of the class name (from T), the unadorned
281 method name from METHOD_ID, and the signature for the specific overload,
282 specified by SIGNATURE_ID. Note that this function is g++ specific. */
285 gdb_mangle_name (type, method_id, signature_id)
287 int method_id, signature_id;
289 int mangled_name_len;
291 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id);
292 struct fn_field *method = &f[signature_id];
293 char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id);
294 char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id);
295 char *newname = type_name_no_tag (type);
297 /* Does the form of physname indicate that it is the full mangled name
298 of a constructor (not just the args)? */
299 int is_full_physname_constructor;
302 int is_destructor = DESTRUCTOR_PREFIX_P (physname);
303 /* Need a new type prefix. */
304 char *const_prefix = method->is_const ? "C" : "";
305 char *volatile_prefix = method->is_volatile ? "V" : "";
307 int len = (newname == NULL ? 0 : strlen (newname));
309 is_full_physname_constructor =
310 ((physname[0] == '_' && physname[1] == '_' &&
311 (isdigit (physname[2]) || physname[2] == 'Q' || physname[2] == 't'))
312 || (strncmp (physname, "__ct", 4) == 0));
315 is_full_physname_constructor || (newname && STREQ (field_name, newname));
318 is_destructor = (strncmp (physname, "__dt", 4) == 0);
320 if (is_destructor || is_full_physname_constructor)
322 mangled_name = (char *) xmalloc (strlen (physname) + 1);
323 strcpy (mangled_name, physname);
329 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
331 else if (physname[0] == 't' || physname[0] == 'Q')
333 /* The physname for template and qualified methods already includes
335 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
341 sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len);
343 mangled_name_len = ((is_constructor ? 0 : strlen (field_name))
348 /* Only needed for GNU-mangled names. ANSI-mangled names
349 work with the normal mechanisms. */
350 if (OPNAME_PREFIX_P (field_name))
352 const char *opname = cplus_mangle_opname (field_name + 3, 0);
354 error ("No mangling for \"%s\"", field_name);
355 mangled_name_len += strlen (opname);
356 mangled_name = (char *) xmalloc (mangled_name_len);
358 strncpy (mangled_name, field_name, 3);
359 mangled_name[3] = '\0';
360 strcat (mangled_name, opname);
364 mangled_name = (char *) xmalloc (mangled_name_len);
366 mangled_name[0] = '\0';
368 strcpy (mangled_name, field_name);
370 strcat (mangled_name, buf);
371 /* If the class doesn't have a name, i.e. newname NULL, then we just
372 mangle it using 0 for the length of the class. Thus it gets mangled
373 as something starting with `::' rather than `classname::'. */
375 strcat (mangled_name, newname);
377 strcat (mangled_name, physname);
378 return (mangled_name);
383 /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
385 struct partial_symtab *
386 find_pc_sect_psymtab (pc, section)
390 register struct partial_symtab *pst;
391 register struct objfile *objfile;
393 ALL_PSYMTABS (objfile, pst)
395 if (pc >= pst->textlow && pc < pst->texthigh)
397 struct minimal_symbol *msymbol;
398 struct partial_symtab *tpst;
400 /* An objfile that has its functions reordered might have
401 many partial symbol tables containing the PC, but
402 we want the partial symbol table that contains the
403 function containing the PC. */
404 if (!(objfile->flags & OBJF_REORDERED) &&
405 section == 0) /* can't validate section this way */
408 msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
412 for (tpst = pst; tpst != NULL; tpst = tpst->next)
414 if (pc >= tpst->textlow && pc < tpst->texthigh)
416 struct partial_symbol *p;
418 p = find_pc_sect_psymbol (tpst, pc, section);
420 && SYMBOL_VALUE_ADDRESS (p)
421 == SYMBOL_VALUE_ADDRESS (msymbol))
431 /* Find which partial symtab contains PC. Return 0 if none.
432 Backward compatibility, no section */
434 struct partial_symtab *
438 return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc));
441 /* Find which partial symbol within a psymtab matches PC and SECTION.
442 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
444 struct partial_symbol *
445 find_pc_sect_psymbol (psymtab, pc, section)
446 struct partial_symtab *psymtab;
450 struct partial_symbol *best = NULL, *p, **pp;
454 psymtab = find_pc_sect_psymtab (pc, section);
458 /* Cope with programs that start at address 0 */
459 best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0;
461 /* Search the global symbols as well as the static symbols, so that
462 find_pc_partial_function doesn't use a minimal symbol and thus
463 cache a bad endaddr. */
464 for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset;
465 (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset)
466 < psymtab->n_global_syms);
470 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
471 && SYMBOL_CLASS (p) == LOC_BLOCK
472 && pc >= SYMBOL_VALUE_ADDRESS (p)
473 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
474 || (psymtab->textlow == 0
475 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
477 if (section) /* match on a specific section */
479 fixup_psymbol_section (p, psymtab->objfile);
480 if (SYMBOL_BFD_SECTION (p) != section)
483 best_pc = SYMBOL_VALUE_ADDRESS (p);
488 for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset;
489 (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset)
490 < psymtab->n_static_syms);
494 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
495 && SYMBOL_CLASS (p) == LOC_BLOCK
496 && pc >= SYMBOL_VALUE_ADDRESS (p)
497 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
498 || (psymtab->textlow == 0
499 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
501 if (section) /* match on a specific section */
503 fixup_psymbol_section (p, psymtab->objfile);
504 if (SYMBOL_BFD_SECTION (p) != section)
507 best_pc = SYMBOL_VALUE_ADDRESS (p);
515 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
516 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
518 struct partial_symbol *
519 find_pc_psymbol (psymtab, pc)
520 struct partial_symtab *psymtab;
523 return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc));
526 /* Debug symbols usually don't have section information. We need to dig that
527 out of the minimal symbols and stash that in the debug symbol. */
530 fixup_section (ginfo, objfile)
531 struct general_symbol_info *ginfo;
532 struct objfile *objfile;
534 struct minimal_symbol *msym;
535 msym = lookup_minimal_symbol (ginfo->name, NULL, objfile);
538 ginfo->bfd_section = SYMBOL_BFD_SECTION (msym);
542 fixup_symbol_section (sym, objfile)
544 struct objfile *objfile;
549 if (SYMBOL_BFD_SECTION (sym))
552 fixup_section (&sym->ginfo, objfile);
557 static struct partial_symbol *
558 fixup_psymbol_section (psym, objfile)
559 struct partial_symbol *psym;
560 struct objfile *objfile;
565 if (SYMBOL_BFD_SECTION (psym))
568 fixup_section (&psym->ginfo, objfile);
573 /* Find the definition for a specified symbol name NAME
574 in namespace NAMESPACE, visible from lexical block BLOCK.
575 Returns the struct symbol pointer, or zero if no symbol is found.
576 If SYMTAB is non-NULL, store the symbol table in which the
577 symbol was found there, or NULL if not found.
578 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
579 NAME is a field of the current implied argument `this'. If so set
580 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
581 BLOCK_FOUND is set to the block in which NAME is found (in the case of
582 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
584 /* This function has a bunch of loops in it and it would seem to be
585 attractive to put in some QUIT's (though I'm not really sure
586 whether it can run long enough to be really important). But there
587 are a few calls for which it would appear to be bad news to quit
588 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
589 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
590 code below which can error(), but that probably doesn't affect
591 these calls since they are looking for a known variable and thus
592 can probably assume it will never hit the C++ code). */
595 lookup_symbol (name, block, namespace, is_a_field_of_this, symtab)
597 register const struct block *block;
598 const namespace_enum namespace;
599 int *is_a_field_of_this;
600 struct symtab **symtab;
602 register struct symbol *sym;
603 register struct symtab *s = NULL;
604 register struct partial_symtab *ps;
605 struct blockvector *bv;
606 register struct objfile *objfile = NULL;
607 register struct block *b;
608 register struct minimal_symbol *msymbol;
610 /* Search specified block and its superiors. */
614 sym = lookup_block_symbol (block, name, namespace);
620 /* Search the list of symtabs for one which contains the
621 address of the start of this block. */
622 ALL_SYMTABS (objfile, s)
624 bv = BLOCKVECTOR (s);
625 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
626 if (BLOCK_START (b) <= BLOCK_START (block)
627 && BLOCK_END (b) > BLOCK_START (block))
634 return fixup_symbol_section (sym, objfile);
636 block = BLOCK_SUPERBLOCK (block);
639 /* FIXME: this code is never executed--block is always NULL at this
640 point. What is it trying to do, anyway? We already should have
641 checked the STATIC_BLOCK above (it is the superblock of top-level
642 blocks). Why is VAR_NAMESPACE special-cased? */
643 /* Don't need to mess with the psymtabs; if we have a block,
644 that file is read in. If we don't, then we deal later with
645 all the psymtab stuff that needs checking. */
646 /* Note (RT): The following never-executed code looks unnecessary to me also.
647 * If we change the code to use the original (passed-in)
648 * value of 'block', we could cause it to execute, but then what
649 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
650 * 'block' was already searched by the above code. And the STATIC_BLOCK's
651 * of *other* symtabs (those files not containing 'block' lexically)
652 * should not contain 'block' address-wise. So we wouldn't expect this
653 * code to find any 'sym''s that were not found above. I vote for
654 * deleting the following paragraph of code.
656 if (namespace == VAR_NAMESPACE && block != NULL)
659 /* Find the right symtab. */
660 ALL_SYMTABS (objfile, s)
662 bv = BLOCKVECTOR (s);
663 b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
664 if (BLOCK_START (b) <= BLOCK_START (block)
665 && BLOCK_END (b) > BLOCK_START (block))
667 sym = lookup_block_symbol (b, name, VAR_NAMESPACE);
673 return fixup_symbol_section (sym, objfile);
680 /* C++: If requested to do so by the caller,
681 check to see if NAME is a field of `this'. */
682 if (is_a_field_of_this)
684 struct value *v = value_of_this (0);
686 *is_a_field_of_this = 0;
687 if (v && check_field (v, name))
689 *is_a_field_of_this = 1;
696 /* Now search all global blocks. Do the symtab's first, then
697 check the psymtab's. If a psymtab indicates the existence
698 of the desired name as a global, then do psymtab-to-symtab
699 conversion on the fly and return the found symbol. */
701 ALL_SYMTABS (objfile, s)
703 bv = BLOCKVECTOR (s);
704 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
705 sym = lookup_block_symbol (block, name, namespace);
711 return fixup_symbol_section (sym, objfile);
717 /* Check for the possibility of the symbol being a function or
718 a mangled variable that is stored in one of the minimal symbol tables.
719 Eventually, all global symbols might be resolved in this way. */
721 if (namespace == VAR_NAMESPACE)
723 msymbol = lookup_minimal_symbol (name, NULL, NULL);
726 s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol),
727 SYMBOL_BFD_SECTION (msymbol));
730 /* This is a function which has a symtab for its address. */
731 bv = BLOCKVECTOR (s);
732 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
733 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
735 /* We kept static functions in minimal symbol table as well as
736 in static scope. We want to find them in the symbol table. */
739 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
740 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
744 /* sym == 0 if symbol was found in the minimal symbol table
745 but not in the symtab.
746 Return 0 to use the msymbol definition of "foo_".
748 This happens for Fortran "foo_" symbols,
749 which are "foo" in the symtab.
751 This can also happen if "asm" is used to make a
752 regular symbol but not a debugging symbol, e.g.
759 return fixup_symbol_section (sym, objfile);
761 else if (MSYMBOL_TYPE (msymbol) != mst_text
762 && MSYMBOL_TYPE (msymbol) != mst_file_text
763 && !STREQ (name, SYMBOL_NAME (msymbol)))
765 /* This is a mangled variable, look it up by its
767 return lookup_symbol (SYMBOL_NAME (msymbol), block,
768 namespace, is_a_field_of_this, symtab);
770 /* There are no debug symbols for this file, or we are looking
771 for an unmangled variable.
772 Try to find a matching static symbol below. */
778 ALL_PSYMTABS (objfile, ps)
780 if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace))
782 s = PSYMTAB_TO_SYMTAB (ps);
783 bv = BLOCKVECTOR (s);
784 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
785 sym = lookup_block_symbol (block, name, namespace);
788 /* This shouldn't be necessary, but as a last resort
789 * try looking in the statics even though the psymtab
790 * claimed the symbol was global. It's possible that
791 * the psymtab gets it wrong in some cases.
793 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
794 sym = lookup_block_symbol (block, name, namespace);
796 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
797 %s may be an inlined function, or may be a template function\n\
798 (if a template, try specifying an instantiation: %s<type>).",
799 name, ps->filename, name, name);
803 return fixup_symbol_section (sym, objfile);
807 /* Now search all static file-level symbols.
808 Not strictly correct, but more useful than an error.
809 Do the symtabs first, then check the psymtabs.
810 If a psymtab indicates the existence
811 of the desired name as a file-level static, then do psymtab-to-symtab
812 conversion on the fly and return the found symbol. */
814 ALL_SYMTABS (objfile, s)
816 bv = BLOCKVECTOR (s);
817 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
818 sym = lookup_block_symbol (block, name, namespace);
824 return fixup_symbol_section (sym, objfile);
828 ALL_PSYMTABS (objfile, ps)
830 if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace))
832 s = PSYMTAB_TO_SYMTAB (ps);
833 bv = BLOCKVECTOR (s);
834 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
835 sym = lookup_block_symbol (block, name, namespace);
838 /* This shouldn't be necessary, but as a last resort
839 * try looking in the globals even though the psymtab
840 * claimed the symbol was static. It's possible that
841 * the psymtab gets it wrong in some cases.
843 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
844 sym = lookup_block_symbol (block, name, namespace);
846 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
847 %s may be an inlined function, or may be a template function\n\
848 (if a template, try specifying an instantiation: %s<type>).",
849 name, ps->filename, name, name);
853 return fixup_symbol_section (sym, objfile);
859 /* Check for the possibility of the symbol being a function or
860 a global variable that is stored in one of the minimal symbol tables.
861 The "minimal symbol table" is built from linker-supplied info.
863 RT: I moved this check to last, after the complete search of
864 the global (p)symtab's and static (p)symtab's. For HP-generated
865 symbol tables, this check was causing a premature exit from
866 lookup_symbol with NULL return, and thus messing up symbol lookups
867 of things like "c::f". It seems to me a check of the minimal
868 symbol table ought to be a last resort in any case. I'm vaguely
869 worried about the comment below which talks about FORTRAN routines "foo_"
870 though... is it saying we need to do the "minsym" check before
871 the static check in this case?
874 if (namespace == VAR_NAMESPACE)
876 msymbol = lookup_minimal_symbol (name, NULL, NULL);
879 /* OK, we found a minimal symbol in spite of not
880 * finding any symbol. There are various possible
881 * explanations for this. One possibility is the symbol
882 * exists in code not compiled -g. Another possibility
883 * is that the 'psymtab' isn't doing its job.
884 * A third possibility, related to #2, is that we were confused
885 * by name-mangling. For instance, maybe the psymtab isn't
886 * doing its job because it only know about demangled
887 * names, but we were given a mangled name...
890 /* We first use the address in the msymbol to try to
891 * locate the appropriate symtab. Note that find_pc_symtab()
892 * has a side-effect of doing psymtab-to-symtab expansion,
893 * for the found symtab.
895 s = find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol));
898 bv = BLOCKVECTOR (s);
899 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
900 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
902 /* We kept static functions in minimal symbol table as well as
903 in static scope. We want to find them in the symbol table. */
906 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
907 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
910 /* If we found one, return it */
918 /* If we get here with sym == 0, the symbol was
919 found in the minimal symbol table
920 but not in the symtab.
921 Fall through and return 0 to use the msymbol
922 definition of "foo_".
923 (Note that outer code generally follows up a call
924 to this routine with a call to lookup_minimal_symbol(),
925 so a 0 return means we'll just flow into that other routine).
927 This happens for Fortran "foo_" symbols,
928 which are "foo" in the symtab.
930 This can also happen if "asm" is used to make a
931 regular symbol but not a debugging symbol, e.g.
937 /* If the lookup-by-address fails, try repeating the
938 * entire lookup process with the symbol name from
939 * the msymbol (if different from the original symbol name).
941 else if (MSYMBOL_TYPE (msymbol) != mst_text
942 && MSYMBOL_TYPE (msymbol) != mst_file_text
943 && !STREQ (name, SYMBOL_NAME (msymbol)))
945 return lookup_symbol (SYMBOL_NAME (msymbol), block,
946 namespace, is_a_field_of_this, symtab);
958 /* Look, in partial_symtab PST, for symbol NAME. Check the global
959 symbols if GLOBAL, the static symbols if not */
961 static struct partial_symbol *
962 lookup_partial_symbol (pst, name, global, namespace)
963 struct partial_symtab *pst;
966 namespace_enum namespace;
968 struct partial_symbol *temp;
969 struct partial_symbol **start, **psym;
970 struct partial_symbol **top, **bottom, **center;
971 int length = (global ? pst->n_global_syms : pst->n_static_syms);
972 int do_linear_search = 1;
979 pst->objfile->global_psymbols.list + pst->globals_offset :
980 pst->objfile->static_psymbols.list + pst->statics_offset);
982 if (global) /* This means we can use a binary search. */
984 do_linear_search = 0;
986 /* Binary search. This search is guaranteed to end with center
987 pointing at the earliest partial symbol with the correct
988 name. At that point *all* partial symbols with that name
989 will be checked against the correct namespace. */
992 top = start + length - 1;
995 center = bottom + (top - bottom) / 2;
998 if (!do_linear_search
999 && (SYMBOL_LANGUAGE (*center) == language_java))
1001 do_linear_search = 1;
1003 if (STRCMP (SYMBOL_NAME (*center), name) >= 0)
1009 bottom = center + 1;
1012 if (!(top == bottom))
1015 /* djb - 2000-06-03 - Use SYMBOL_MATCHES_NAME, not a strcmp, so
1016 we don't have to force a linear search on C++. Probably holds true
1017 for JAVA as well, no way to check.*/
1018 while (SYMBOL_MATCHES_NAME (*top,name))
1020 if (SYMBOL_NAMESPACE (*top) == namespace)
1028 /* Can't use a binary search or else we found during the binary search that
1029 we should also do a linear search. */
1031 if (do_linear_search)
1033 for (psym = start; psym < start + length; psym++)
1035 if (namespace == SYMBOL_NAMESPACE (*psym))
1037 if (SYMBOL_MATCHES_NAME (*psym, name))
1048 /* Look up a type named NAME in the struct_namespace. The type returned
1049 must not be opaque -- i.e., must have at least one field defined
1051 This code was modelled on lookup_symbol -- the parts not relevant to looking
1052 up types were just left out. In particular it's assumed here that types
1053 are available in struct_namespace and only at file-static or global blocks. */
1057 lookup_transparent_type (name)
1060 register struct symbol *sym;
1061 register struct symtab *s = NULL;
1062 register struct partial_symtab *ps;
1063 struct blockvector *bv;
1064 register struct objfile *objfile;
1065 register struct block *block;
1067 /* Now search all the global symbols. Do the symtab's first, then
1068 check the psymtab's. If a psymtab indicates the existence
1069 of the desired name as a global, then do psymtab-to-symtab
1070 conversion on the fly and return the found symbol. */
1072 ALL_SYMTABS (objfile, s)
1074 bv = BLOCKVECTOR (s);
1075 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1076 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1077 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1079 return SYMBOL_TYPE (sym);
1083 ALL_PSYMTABS (objfile, ps)
1085 if (!ps->readin && lookup_partial_symbol (ps, name, 1, STRUCT_NAMESPACE))
1087 s = PSYMTAB_TO_SYMTAB (ps);
1088 bv = BLOCKVECTOR (s);
1089 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1090 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1093 /* This shouldn't be necessary, but as a last resort
1094 * try looking in the statics even though the psymtab
1095 * claimed the symbol was global. It's possible that
1096 * the psymtab gets it wrong in some cases.
1098 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1099 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1101 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
1102 %s may be an inlined function, or may be a template function\n\
1103 (if a template, try specifying an instantiation: %s<type>).",
1104 name, ps->filename, name, name);
1106 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1107 return SYMBOL_TYPE (sym);
1111 /* Now search the static file-level symbols.
1112 Not strictly correct, but more useful than an error.
1113 Do the symtab's first, then
1114 check the psymtab's. If a psymtab indicates the existence
1115 of the desired name as a file-level static, then do psymtab-to-symtab
1116 conversion on the fly and return the found symbol.
1119 ALL_SYMTABS (objfile, s)
1121 bv = BLOCKVECTOR (s);
1122 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1123 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1124 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1126 return SYMBOL_TYPE (sym);
1130 ALL_PSYMTABS (objfile, ps)
1132 if (!ps->readin && lookup_partial_symbol (ps, name, 0, STRUCT_NAMESPACE))
1134 s = PSYMTAB_TO_SYMTAB (ps);
1135 bv = BLOCKVECTOR (s);
1136 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1137 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1140 /* This shouldn't be necessary, but as a last resort
1141 * try looking in the globals even though the psymtab
1142 * claimed the symbol was static. It's possible that
1143 * the psymtab gets it wrong in some cases.
1145 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1146 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1148 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
1149 %s may be an inlined function, or may be a template function\n\
1150 (if a template, try specifying an instantiation: %s<type>).",
1151 name, ps->filename, name, name);
1153 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1154 return SYMBOL_TYPE (sym);
1157 return (struct type *) 0;
1161 /* Find the psymtab containing main(). */
1162 /* FIXME: What about languages without main() or specially linked
1163 executables that have no main() ? */
1165 struct partial_symtab *
1166 find_main_psymtab ()
1168 register struct partial_symtab *pst;
1169 register struct objfile *objfile;
1171 ALL_PSYMTABS (objfile, pst)
1173 if (lookup_partial_symbol (pst, "main", 1, VAR_NAMESPACE))
1181 /* Search BLOCK for symbol NAME in NAMESPACE.
1183 Note that if NAME is the demangled form of a C++ symbol, we will fail
1184 to find a match during the binary search of the non-encoded names, but
1185 for now we don't worry about the slight inefficiency of looking for
1186 a match we'll never find, since it will go pretty quick. Once the
1187 binary search terminates, we drop through and do a straight linear
1188 search on the symbols. Each symbol which is marked as being a C++
1189 symbol (language_cplus set) has both the encoded and non-encoded names
1190 tested for a match. */
1193 lookup_block_symbol (block, name, namespace)
1194 register const struct block *block;
1196 const namespace_enum namespace;
1198 register int bot, top, inc;
1199 register struct symbol *sym;
1200 register struct symbol *sym_found = NULL;
1201 register int do_linear_search = 1;
1203 /* If the blocks's symbols were sorted, start with a binary search. */
1205 if (BLOCK_SHOULD_SORT (block))
1207 /* Reset the linear search flag so if the binary search fails, we
1208 won't do the linear search once unless we find some reason to
1209 do so, such as finding a C++ symbol during the binary search.
1210 Note that for C++ modules, ALL the symbols in a block should
1211 end up marked as C++ symbols. */
1213 do_linear_search = 0;
1214 top = BLOCK_NSYMS (block);
1217 /* Advance BOT to not far before the first symbol whose name is NAME. */
1221 inc = (top - bot + 1);
1222 /* No need to keep binary searching for the last few bits worth. */
1227 inc = (inc >> 1) + bot;
1228 sym = BLOCK_SYM (block, inc);
1229 if (!do_linear_search
1230 && (SYMBOL_LANGUAGE (sym) == language_cplus
1231 || SYMBOL_LANGUAGE (sym) == language_java
1234 do_linear_search = 1;
1236 if (SYMBOL_NAME (sym)[0] < name[0])
1240 else if (SYMBOL_NAME (sym)[0] > name[0])
1244 else if (STRCMP (SYMBOL_NAME (sym), name) < 0)
1254 /* Now scan forward until we run out of symbols, find one whose
1255 name is greater than NAME, or find one we want. If there is
1256 more than one symbol with the right name and namespace, we
1257 return the first one; I believe it is now impossible for us
1258 to encounter two symbols with the same name and namespace
1259 here, because blocks containing argument symbols are no
1262 top = BLOCK_NSYMS (block);
1265 sym = BLOCK_SYM (block, bot);
1266 inc = SYMBOL_NAME (sym)[0] - name[0];
1269 inc = STRCMP (SYMBOL_NAME (sym), name);
1271 if (inc == 0 && SYMBOL_NAMESPACE (sym) == namespace)
1283 /* Here if block isn't sorted, or we fail to find a match during the
1284 binary search above. If during the binary search above, we find a
1285 symbol which is a C++ symbol, then we have re-enabled the linear
1286 search flag which was reset when starting the binary search.
1288 This loop is equivalent to the loop above, but hacked greatly for speed.
1290 Note that parameter symbols do not always show up last in the
1291 list; this loop makes sure to take anything else other than
1292 parameter symbols first; it only uses parameter symbols as a
1293 last resort. Note that this only takes up extra computation
1296 if (do_linear_search)
1298 top = BLOCK_NSYMS (block);
1302 sym = BLOCK_SYM (block, bot);
1303 if (SYMBOL_NAMESPACE (sym) == namespace &&
1304 SYMBOL_MATCHES_NAME (sym, name))
1306 /* If SYM has aliases, then use any alias that is active
1307 at the current PC. If no alias is active at the current
1308 PC, then use the main symbol.
1310 ?!? Is checking the current pc correct? Is this routine
1311 ever called to look up a symbol from another context?
1313 FIXME: No, it's not correct. If someone sets a
1314 conditional breakpoint at an address, then the
1315 breakpoint's `struct expression' should refer to the
1316 `struct symbol' appropriate for the breakpoint's
1317 address, which may not be the PC.
1319 Even if it were never called from another context,
1320 it's totally bizarre for lookup_symbol's behavior to
1321 depend on the value of the inferior's current PC. We
1322 should pass in the appropriate PC as well as the
1323 block. The interface to lookup_symbol should change
1324 to require the caller to provide a PC. */
1326 if (SYMBOL_ALIASES (sym))
1327 sym = find_active_alias (sym, read_pc ());
1330 if (SYMBOL_CLASS (sym) != LOC_ARG &&
1331 SYMBOL_CLASS (sym) != LOC_LOCAL_ARG &&
1332 SYMBOL_CLASS (sym) != LOC_REF_ARG &&
1333 SYMBOL_CLASS (sym) != LOC_REGPARM &&
1334 SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR &&
1335 SYMBOL_CLASS (sym) != LOC_BASEREG_ARG)
1343 return (sym_found); /* Will be NULL if not found. */
1346 /* Given a main symbol SYM and ADDR, search through the alias
1347 list to determine if an alias is active at ADDR and return
1350 If no alias is active, then return SYM. */
1352 static struct symbol *
1353 find_active_alias (sym, addr)
1357 struct range_list *r;
1358 struct alias_list *aliases;
1360 /* If we have aliases, check them first. */
1361 aliases = SYMBOL_ALIASES (sym);
1365 if (!SYMBOL_RANGES (aliases->sym))
1366 return aliases->sym;
1367 for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next)
1369 if (r->start <= addr && r->end > addr)
1370 return aliases->sym;
1372 aliases = aliases->next;
1375 /* Nothing found, return the main symbol. */
1380 /* Return the symbol for the function which contains a specified
1381 lexical block, described by a struct block BL. */
1387 while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0)
1388 bl = BLOCK_SUPERBLOCK (bl);
1390 return BLOCK_FUNCTION (bl);
1393 /* Find the symtab associated with PC and SECTION. Look through the
1394 psymtabs and read in another symtab if necessary. */
1397 find_pc_sect_symtab (pc, section)
1401 register struct block *b;
1402 struct blockvector *bv;
1403 register struct symtab *s = NULL;
1404 register struct symtab *best_s = NULL;
1405 register struct partial_symtab *ps;
1406 register struct objfile *objfile;
1407 CORE_ADDR distance = 0;
1409 /* Search all symtabs for the one whose file contains our address, and which
1410 is the smallest of all the ones containing the address. This is designed
1411 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1412 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1413 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1415 This happens for native ecoff format, where code from included files
1416 gets its own symtab. The symtab for the included file should have
1417 been read in already via the dependency mechanism.
1418 It might be swifter to create several symtabs with the same name
1419 like xcoff does (I'm not sure).
1421 It also happens for objfiles that have their functions reordered.
1422 For these, the symtab we are looking for is not necessarily read in. */
1424 ALL_SYMTABS (objfile, s)
1426 bv = BLOCKVECTOR (s);
1427 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1429 if (BLOCK_START (b) <= pc
1430 && BLOCK_END (b) > pc
1432 || BLOCK_END (b) - BLOCK_START (b) < distance))
1434 /* For an objfile that has its functions reordered,
1435 find_pc_psymtab will find the proper partial symbol table
1436 and we simply return its corresponding symtab. */
1437 /* In order to better support objfiles that contain both
1438 stabs and coff debugging info, we continue on if a psymtab
1440 if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs)
1442 ps = find_pc_sect_psymtab (pc, section);
1444 return PSYMTAB_TO_SYMTAB (ps);
1450 for (i = 0; i < b->nsyms; i++)
1452 fixup_symbol_section (b->sym[i], objfile);
1453 if (section == SYMBOL_BFD_SECTION (b->sym[i]))
1457 continue; /* no symbol in this symtab matches section */
1459 distance = BLOCK_END (b) - BLOCK_START (b);
1468 ps = find_pc_sect_psymtab (pc, section);
1472 /* Might want to error() here (in case symtab is corrupt and
1473 will cause a core dump), but maybe we can successfully
1474 continue, so let's not. */
1475 /* FIXME-32x64: assumes pc fits in a long */
1477 (Internal error: pc 0x%lx in read in psymtab, but not in symtab.)\n",
1478 (unsigned long) pc);
1479 s = PSYMTAB_TO_SYMTAB (ps);
1484 /* Find the symtab associated with PC. Look through the psymtabs and
1485 read in another symtab if necessary. Backward compatibility, no section */
1491 return find_pc_sect_symtab (pc, find_pc_mapped_section (pc));
1497 /* Find the closest symbol value (of any sort -- function or variable)
1498 for a given address value. Slow but complete. (currently unused,
1499 mainly because it is too slow. We could fix it if each symtab and
1500 psymtab had contained in it the addresses ranges of each of its
1501 sections, which also would be required to make things like "info
1502 line *0x2345" cause psymtabs to be converted to symtabs). */
1505 find_addr_symbol (addr, symtabp, symaddrp)
1507 struct symtab **symtabp;
1508 CORE_ADDR *symaddrp;
1510 struct symtab *symtab, *best_symtab;
1511 struct objfile *objfile;
1512 register int bot, top;
1513 register struct symbol *sym;
1514 register CORE_ADDR sym_addr;
1515 struct block *block;
1518 /* Info on best symbol seen so far */
1520 register CORE_ADDR best_sym_addr = 0;
1521 struct symbol *best_sym = 0;
1523 /* FIXME -- we should pull in all the psymtabs, too! */
1524 ALL_SYMTABS (objfile, symtab)
1526 /* Search the global and static blocks in this symtab for
1527 the closest symbol-address to the desired address. */
1529 for (blocknum = GLOBAL_BLOCK; blocknum <= STATIC_BLOCK; blocknum++)
1532 block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), blocknum);
1533 top = BLOCK_NSYMS (block);
1534 for (bot = 0; bot < top; bot++)
1536 sym = BLOCK_SYM (block, bot);
1537 switch (SYMBOL_CLASS (sym))
1541 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1545 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1546 /* An indirect symbol really lives at *sym_addr,
1547 * so an indirection needs to be done.
1548 * However, I am leaving this commented out because it's
1549 * expensive, and it's possible that symbolization
1550 * could be done without an active process (in
1551 * case this read_memory will fail). RT
1552 sym_addr = read_memory_unsigned_integer
1553 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1558 sym_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
1565 if (sym_addr <= addr)
1566 if (sym_addr > best_sym_addr)
1568 /* Quit if we found an exact match. */
1570 best_sym_addr = sym_addr;
1571 best_symtab = symtab;
1572 if (sym_addr == addr)
1581 *symtabp = best_symtab;
1583 *symaddrp = best_sym_addr;
1588 /* Find the source file and line number for a given PC value and section.
1589 Return a structure containing a symtab pointer, a line number,
1590 and a pc range for the entire source line.
1591 The value's .pc field is NOT the specified pc.
1592 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1593 use the line that ends there. Otherwise, in that case, the line
1594 that begins there is used. */
1596 /* The big complication here is that a line may start in one file, and end just
1597 before the start of another file. This usually occurs when you #include
1598 code in the middle of a subroutine. To properly find the end of a line's PC
1599 range, we must search all symtabs associated with this compilation unit, and
1600 find the one whose first PC is closer than that of the next line in this
1603 /* If it's worth the effort, we could be using a binary search. */
1605 struct symtab_and_line
1606 find_pc_sect_line (pc, section, notcurrent)
1608 struct sec *section;
1612 register struct linetable *l;
1615 register struct linetable_entry *item;
1616 struct symtab_and_line val;
1617 struct blockvector *bv;
1618 struct minimal_symbol *msymbol;
1619 struct minimal_symbol *mfunsym;
1621 /* Info on best line seen so far, and where it starts, and its file. */
1623 struct linetable_entry *best = NULL;
1624 CORE_ADDR best_end = 0;
1625 struct symtab *best_symtab = 0;
1627 /* Store here the first line number
1628 of a file which contains the line at the smallest pc after PC.
1629 If we don't find a line whose range contains PC,
1630 we will use a line one less than this,
1631 with a range from the start of that file to the first line's pc. */
1632 struct linetable_entry *alt = NULL;
1633 struct symtab *alt_symtab = 0;
1635 /* Info on best line seen in this file. */
1637 struct linetable_entry *prev;
1639 /* If this pc is not from the current frame,
1640 it is the address of the end of a call instruction.
1641 Quite likely that is the start of the following statement.
1642 But what we want is the statement containing the instruction.
1643 Fudge the pc to make sure we get that. */
1645 INIT_SAL (&val); /* initialize to zeroes */
1650 /* elz: added this because this function returned the wrong
1651 information if the pc belongs to a stub (import/export)
1652 to call a shlib function. This stub would be anywhere between
1653 two functions in the target, and the line info was erroneously
1654 taken to be the one of the line before the pc.
1656 /* RT: Further explanation:
1658 * We have stubs (trampolines) inserted between procedures.
1660 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1661 * exists in the main image.
1663 * In the minimal symbol table, we have a bunch of symbols
1664 * sorted by start address. The stubs are marked as "trampoline",
1665 * the others appear as text. E.g.:
1667 * Minimal symbol table for main image
1668 * main: code for main (text symbol)
1669 * shr1: stub (trampoline symbol)
1670 * foo: code for foo (text symbol)
1672 * Minimal symbol table for "shr1" image:
1674 * shr1: code for shr1 (text symbol)
1677 * So the code below is trying to detect if we are in the stub
1678 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1679 * and if found, do the symbolization from the real-code address
1680 * rather than the stub address.
1682 * Assumptions being made about the minimal symbol table:
1683 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1684 * if we're really in the trampoline. If we're beyond it (say
1685 * we're in "foo" in the above example), it'll have a closer
1686 * symbol (the "foo" text symbol for example) and will not
1687 * return the trampoline.
1688 * 2. lookup_minimal_symbol_text() will find a real text symbol
1689 * corresponding to the trampoline, and whose address will
1690 * be different than the trampoline address. I put in a sanity
1691 * check for the address being the same, to avoid an
1692 * infinite recursion.
1694 msymbol = lookup_minimal_symbol_by_pc (pc);
1695 if (msymbol != NULL)
1696 if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline)
1698 mfunsym = lookup_minimal_symbol_text (SYMBOL_NAME (msymbol), NULL, NULL);
1699 if (mfunsym == NULL)
1700 /* I eliminated this warning since it is coming out
1701 * in the following situation:
1702 * gdb shmain // test program with shared libraries
1703 * (gdb) break shr1 // function in shared lib
1704 * Warning: In stub for ...
1705 * In the above situation, the shared lib is not loaded yet,
1706 * so of course we can't find the real func/line info,
1707 * but the "break" still works, and the warning is annoying.
1708 * So I commented out the warning. RT */
1709 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1711 else if (SYMBOL_VALUE (mfunsym) == SYMBOL_VALUE (msymbol))
1712 /* Avoid infinite recursion */
1713 /* See above comment about why warning is commented out */
1714 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1717 return find_pc_line (SYMBOL_VALUE (mfunsym), 0);
1721 s = find_pc_sect_symtab (pc, section);
1724 /* if no symbol information, return previous pc */
1731 bv = BLOCKVECTOR (s);
1733 /* Look at all the symtabs that share this blockvector.
1734 They all have the same apriori range, that we found was right;
1735 but they have different line tables. */
1737 for (; s && BLOCKVECTOR (s) == bv; s = s->next)
1739 /* Find the best line in this symtab. */
1746 /* I think len can be zero if the symtab lacks line numbers
1747 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1748 I'm not sure which, and maybe it depends on the symbol
1754 item = l->item; /* Get first line info */
1756 /* Is this file's first line closer than the first lines of other files?
1757 If so, record this file, and its first line, as best alternate. */
1758 if (item->pc > pc && (!alt || item->pc < alt->pc))
1764 for (i = 0; i < len; i++, item++)
1766 /* Leave prev pointing to the linetable entry for the last line
1767 that started at or before PC. */
1774 /* At this point, prev points at the line whose start addr is <= pc, and
1775 item points at the next line. If we ran off the end of the linetable
1776 (pc >= start of the last line), then prev == item. If pc < start of
1777 the first line, prev will not be set. */
1779 /* Is this file's best line closer than the best in the other files?
1780 If so, record this file, and its best line, as best so far. */
1782 if (prev && (!best || prev->pc > best->pc))
1786 /* If another line is in the linetable, and its PC is closer
1787 than the best_end we currently have, take it as best_end. */
1788 if (i < len && (best_end == 0 || best_end > item->pc))
1789 best_end = item->pc;
1796 { /* If we didn't find any line # info, just
1802 val.symtab = alt_symtab;
1803 val.line = alt->line - 1;
1805 /* Don't return line 0, that means that we didn't find the line. */
1809 val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1815 val.symtab = best_symtab;
1816 val.line = best->line;
1818 if (best_end && (!alt || best_end < alt->pc))
1823 val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1825 val.section = section;
1829 /* Backward compatibility (no section) */
1831 struct symtab_and_line
1832 find_pc_line (pc, notcurrent)
1838 section = find_pc_overlay (pc);
1839 if (pc_in_unmapped_range (pc, section))
1840 pc = overlay_mapped_address (pc, section);
1841 return find_pc_sect_line (pc, section, notcurrent);
1845 static struct symtab *find_line_symtab (struct symtab *, int, int *, int *);
1847 /* Find line number LINE in any symtab whose name is the same as
1850 If found, return the symtab that contains the linetable in which it was
1851 found, set *INDEX to the index in the linetable of the best entry
1852 found, and set *EXACT_MATCH nonzero if the value returned is an
1855 If not found, return NULL. */
1857 static struct symtab *
1858 find_line_symtab (symtab, line, index, exact_match)
1859 struct symtab *symtab;
1866 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1870 struct linetable *best_linetable;
1871 struct symtab *best_symtab;
1873 /* First try looking it up in the given symtab. */
1874 best_linetable = LINETABLE (symtab);
1875 best_symtab = symtab;
1876 best_index = find_line_common (best_linetable, line, &exact);
1877 if (best_index < 0 || !exact)
1879 /* Didn't find an exact match. So we better keep looking for
1880 another symtab with the same name. In the case of xcoff,
1881 multiple csects for one source file (produced by IBM's FORTRAN
1882 compiler) produce multiple symtabs (this is unavoidable
1883 assuming csects can be at arbitrary places in memory and that
1884 the GLOBAL_BLOCK of a symtab has a begin and end address). */
1886 /* BEST is the smallest linenumber > LINE so far seen,
1887 or 0 if none has been seen so far.
1888 BEST_INDEX and BEST_LINETABLE identify the item for it. */
1891 struct objfile *objfile;
1894 if (best_index >= 0)
1895 best = best_linetable->item[best_index].line;
1899 ALL_SYMTABS (objfile, s)
1901 struct linetable *l;
1904 if (!STREQ (symtab->filename, s->filename))
1907 ind = find_line_common (l, line, &exact);
1917 if (best == 0 || l->item[ind].line < best)
1919 best = l->item[ind].line;
1932 *index = best_index;
1934 *exact_match = exact;
1939 /* Set the PC value for a given source file and line number and return true.
1940 Returns zero for invalid line number (and sets the PC to 0).
1941 The source file is specified with a struct symtab. */
1944 find_line_pc (symtab, line, pc)
1945 struct symtab *symtab;
1949 struct linetable *l;
1956 symtab = find_line_symtab (symtab, line, &ind, NULL);
1959 l = LINETABLE (symtab);
1960 *pc = l->item[ind].pc;
1967 /* Find the range of pc values in a line.
1968 Store the starting pc of the line into *STARTPTR
1969 and the ending pc (start of next line) into *ENDPTR.
1970 Returns 1 to indicate success.
1971 Returns 0 if could not find the specified line. */
1974 find_line_pc_range (sal, startptr, endptr)
1975 struct symtab_and_line sal;
1976 CORE_ADDR *startptr, *endptr;
1978 CORE_ADDR startaddr;
1979 struct symtab_and_line found_sal;
1982 if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr))
1985 /* This whole function is based on address. For example, if line 10 has
1986 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
1987 "info line *0x123" should say the line goes from 0x100 to 0x200
1988 and "info line *0x355" should say the line goes from 0x300 to 0x400.
1989 This also insures that we never give a range like "starts at 0x134
1990 and ends at 0x12c". */
1992 found_sal = find_pc_sect_line (startaddr, sal.section, 0);
1993 if (found_sal.line != sal.line)
1995 /* The specified line (sal) has zero bytes. */
1996 *startptr = found_sal.pc;
1997 *endptr = found_sal.pc;
2001 *startptr = found_sal.pc;
2002 *endptr = found_sal.end;
2007 /* Given a line table and a line number, return the index into the line
2008 table for the pc of the nearest line whose number is >= the specified one.
2009 Return -1 if none is found. The value is >= 0 if it is an index.
2011 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
2014 find_line_common (l, lineno, exact_match)
2015 register struct linetable *l;
2016 register int lineno;
2022 /* BEST is the smallest linenumber > LINENO so far seen,
2023 or 0 if none has been seen so far.
2024 BEST_INDEX identifies the item for it. */
2026 int best_index = -1;
2035 for (i = 0; i < len; i++)
2037 register struct linetable_entry *item = &(l->item[i]);
2039 if (item->line == lineno)
2041 /* Return the first (lowest address) entry which matches. */
2046 if (item->line > lineno && (best == 0 || item->line < best))
2053 /* If we got here, we didn't get an exact match. */
2060 find_pc_line_pc_range (pc, startptr, endptr)
2062 CORE_ADDR *startptr, *endptr;
2064 struct symtab_and_line sal;
2065 sal = find_pc_line (pc, 0);
2068 return sal.symtab != 0;
2071 /* Given a function symbol SYM, find the symtab and line for the start
2073 If the argument FUNFIRSTLINE is nonzero, we want the first line
2074 of real code inside the function. */
2076 static struct symtab_and_line
2077 find_function_start_sal (struct symbol *sym, int);
2079 static struct symtab_and_line
2080 find_function_start_sal (sym, funfirstline)
2085 struct symtab_and_line sal;
2087 pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
2088 fixup_symbol_section (sym, NULL);
2090 { /* skip "first line" of function (which is actually its prologue) */
2091 asection *section = SYMBOL_BFD_SECTION (sym);
2092 /* If function is in an unmapped overlay, use its unmapped LMA
2093 address, so that SKIP_PROLOGUE has something unique to work on */
2094 if (section_is_overlay (section) &&
2095 !section_is_mapped (section))
2096 pc = overlay_unmapped_address (pc, section);
2098 pc += FUNCTION_START_OFFSET;
2099 pc = SKIP_PROLOGUE (pc);
2101 /* For overlays, map pc back into its mapped VMA range */
2102 pc = overlay_mapped_address (pc, section);
2104 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2106 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2107 /* Convex: no need to suppress code on first line, if any */
2110 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2111 line is still part of the same function. */
2113 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end
2114 && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym)))
2116 /* First pc of next line */
2118 /* Recalculate the line number (might not be N+1). */
2119 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2127 /* If P is of the form "operator[ \t]+..." where `...' is
2128 some legitimate operator text, return a pointer to the
2129 beginning of the substring of the operator text.
2130 Otherwise, return "". */
2132 operator_chars (p, end)
2137 if (strncmp (p, "operator", 8))
2141 /* Don't get faked out by `operator' being part of a longer
2143 if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0')
2146 /* Allow some whitespace between `operator' and the operator symbol. */
2147 while (*p == ' ' || *p == '\t')
2150 /* Recognize 'operator TYPENAME'. */
2152 if (isalpha (*p) || *p == '_' || *p == '$')
2154 register char *q = p + 1;
2155 while (isalnum (*q) || *q == '_' || *q == '$')
2180 if (p[1] == '=' || p[1] == p[0])
2191 error ("`operator ()' must be specified without whitespace in `()'");
2196 error ("`operator ?:' must be specified without whitespace in `?:'");
2201 error ("`operator []' must be specified without whitespace in `[]'");
2205 error ("`operator %s' not supported", p);
2212 /* Return the number of methods described for TYPE, including the
2213 methods from types it derives from. This can't be done in the symbol
2214 reader because the type of the baseclass might still be stubbed
2215 when the definition of the derived class is parsed. */
2217 static int total_number_of_methods (struct type *type);
2220 total_number_of_methods (type)
2226 CHECK_TYPEDEF (type);
2227 if (TYPE_CPLUS_SPECIFIC (type) == NULL)
2229 count = TYPE_NFN_FIELDS_TOTAL (type);
2231 for (n = 0; n < TYPE_N_BASECLASSES (type); n++)
2232 count += total_number_of_methods (TYPE_BASECLASS (type, n));
2237 /* Recursive helper function for decode_line_1.
2238 Look for methods named NAME in type T.
2239 Return number of matches.
2240 Put matches in SYM_ARR, which should have been allocated with
2241 a size of total_number_of_methods (T) * sizeof (struct symbol *).
2242 Note that this function is g++ specific. */
2245 find_methods (t, name, sym_arr)
2248 struct symbol **sym_arr;
2252 struct symbol *sym_class;
2253 char *class_name = type_name_no_tag (t);
2255 /* Ignore this class if it doesn't have a name. This is ugly, but
2256 unless we figure out how to get the physname without the name of
2257 the class, then the loop can't do any good. */
2259 && (sym_class = lookup_symbol (class_name,
2260 (struct block *) NULL,
2263 (struct symtab **) NULL)))
2267 /* FIXME: Shouldn't this just be CHECK_TYPEDEF (t)? */
2268 t = SYMBOL_TYPE (sym_class);
2270 /* Loop over each method name. At this level, all overloads of a name
2271 are counted as a single name. There is an inner loop which loops over
2274 for (method_counter = TYPE_NFN_FIELDS (t) - 1;
2275 method_counter >= 0;
2279 char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter);
2280 char dem_opname[64];
2282 if (strncmp (method_name, "__", 2) == 0 ||
2283 strncmp (method_name, "op", 2) == 0 ||
2284 strncmp (method_name, "type", 4) == 0)
2286 if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI))
2287 method_name = dem_opname;
2288 else if (cplus_demangle_opname (method_name, dem_opname, 0))
2289 method_name = dem_opname;
2292 if (STREQ (name, method_name))
2293 /* Find all the overloaded methods with that name. */
2294 for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1;
2301 f = TYPE_FN_FIELDLIST1 (t, method_counter);
2303 if (TYPE_FN_FIELD_STUB (f, field_counter))
2307 tmp_name = gdb_mangle_name (t,
2310 phys_name = alloca (strlen (tmp_name) + 1);
2311 strcpy (phys_name, tmp_name);
2315 phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
2317 /* Destructor is handled by caller, dont add it to the list */
2318 if (DESTRUCTOR_PREFIX_P (phys_name))
2321 sym_arr[i1] = lookup_symbol (phys_name,
2322 NULL, VAR_NAMESPACE,
2324 (struct symtab **) NULL);
2329 /* This error message gets printed, but the method
2330 still seems to be found
2331 fputs_filtered("(Cannot find method ", gdb_stdout);
2332 fprintf_symbol_filtered (gdb_stdout, phys_name,
2334 DMGL_PARAMS | DMGL_ANSI);
2335 fputs_filtered(" - possibly inlined.)\n", gdb_stdout);
2342 /* Only search baseclasses if there is no match yet, since names in
2343 derived classes override those in baseclasses.
2345 FIXME: The above is not true; it is only true of member functions
2346 if they have the same number of arguments (??? - section 13.1 of the
2347 ARM says the function members are not in the same scope but doesn't
2348 really spell out the rules in a way I understand. In any case, if
2349 the number of arguments differ this is a case in which we can overload
2350 rather than hiding without any problem, and gcc 2.4.5 does overload
2351 rather than hiding in this case). */
2354 for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++)
2355 i1 += find_methods (TYPE_BASECLASS (t, ibase), name, sym_arr + i1);
2360 /* Helper function for decode_line_1.
2361 Build a canonical line spec in CANONICAL if it is non-NULL and if
2362 the SAL has a symtab.
2363 If SYMNAME is non-NULL the canonical line spec is `filename:symname'.
2364 If SYMNAME is NULL the line number from SAL is used and the canonical
2365 line spec is `filename:linenum'. */
2368 build_canonical_line_spec (sal, symname, canonical)
2369 struct symtab_and_line *sal;
2373 char **canonical_arr;
2374 char *canonical_name;
2376 struct symtab *s = sal->symtab;
2378 if (s == (struct symtab *) NULL
2379 || s->filename == (char *) NULL
2380 || canonical == (char ***) NULL)
2383 canonical_arr = (char **) xmalloc (sizeof (char *));
2384 *canonical = canonical_arr;
2386 filename = s->filename;
2387 if (symname != NULL)
2389 canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2);
2390 sprintf (canonical_name, "%s:%s", filename, symname);
2394 canonical_name = xmalloc (strlen (filename) + 30);
2395 sprintf (canonical_name, "%s:%d", filename, sal->line);
2397 canonical_arr[0] = canonical_name;
2402 /* Find an instance of the character C in the string S that is outside
2403 of all parenthesis pairs, single-quoted strings, and double-quoted
2406 find_toplevel_char (char *s, char c)
2408 int quoted = 0; /* zero if we're not in quotes;
2409 '"' if we're in a double-quoted string;
2410 '\'' if we're in a single-quoted string. */
2411 int depth = 0; /* number of unclosed parens we've seen */
2414 for (scan = s; *scan; scan++)
2418 if (*scan == quoted)
2420 else if (*scan == '\\' && *(scan + 1))
2423 else if (*scan == c && ! quoted && depth == 0)
2425 else if (*scan == '"' || *scan == '\'')
2427 else if (*scan == '(')
2429 else if (*scan == ')' && depth > 0)
2437 /* Parse a string that specifies a line number.
2438 Pass the address of a char * variable; that variable will be
2439 advanced over the characters actually parsed.
2443 LINENUM -- that line number in current file. PC returned is 0.
2444 FILE:LINENUM -- that line in that file. PC returned is 0.
2445 FUNCTION -- line number of openbrace of that function.
2446 PC returned is the start of the function.
2447 VARIABLE -- line number of definition of that variable.
2449 FILE:FUNCTION -- likewise, but prefer functions in that file.
2450 *EXPR -- line in which address EXPR appears.
2452 This may all be followed by an "if EXPR", which we ignore.
2454 FUNCTION may be an undebuggable function found in minimal symbol table.
2456 If the argument FUNFIRSTLINE is nonzero, we want the first line
2457 of real code inside a function when a function is specified, and it is
2458 not OK to specify a variable or type to get its line number.
2460 DEFAULT_SYMTAB specifies the file to use if none is specified.
2461 It defaults to current_source_symtab.
2462 DEFAULT_LINE specifies the line number to use for relative
2463 line numbers (that start with signs). Defaults to current_source_line.
2464 If CANONICAL is non-NULL, store an array of strings containing the canonical
2465 line specs there if necessary. Currently overloaded member functions and
2466 line numbers or static functions without a filename yield a canonical
2467 line spec. The array and the line spec strings are allocated on the heap,
2468 it is the callers responsibility to free them.
2470 Note that it is possible to return zero for the symtab
2471 if no file is validly specified. Callers must check that.
2472 Also, the line number returned may be invalid. */
2474 /* We allow single quotes in various places. This is a hideous
2475 kludge, which exists because the completer can't yet deal with the
2476 lack of single quotes. FIXME: write a linespec_completer which we
2477 can use as appropriate instead of make_symbol_completion_list. */
2479 struct symtabs_and_lines
2480 decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical)
2483 struct symtab *default_symtab;
2487 struct symtabs_and_lines values;
2488 #ifdef HPPA_COMPILER_BUG
2489 /* FIXME: The native HP 9000/700 compiler has a bug which appears
2490 when optimizing this file with target i960-vxworks. I haven't
2491 been able to construct a simple test case. The problem is that
2492 in the second call to SKIP_PROLOGUE below, the compiler somehow
2493 does not realize that the statement val = find_pc_line (...) will
2494 change the values of the fields of val. It extracts the elements
2495 into registers at the top of the block, and does not update the
2496 registers after the call to find_pc_line. You can check this by
2497 inserting a printf at the end of find_pc_line to show what values
2498 it is returning for val.pc and val.end and another printf after
2499 the call to see what values the function actually got (remember,
2500 this is compiling with cc -O, with this patch removed). You can
2501 also examine the assembly listing: search for the second call to
2502 skip_prologue; the LDO statement before the next call to
2503 find_pc_line loads the address of the structure which
2504 find_pc_line will return; if there is a LDW just before the LDO,
2505 which fetches an element of the structure, then the compiler
2508 Setting val to volatile avoids the problem. We must undef
2509 volatile, because the HPPA native compiler does not define
2510 __STDC__, although it does understand volatile, and so volatile
2511 will have been defined away in defs.h. */
2513 volatile struct symtab_and_line val;
2514 #define volatile /*nothing */
2516 struct symtab_and_line val;
2518 register char *p, *p1;
2519 char *q, *pp, *ii, *p2;
2523 register struct symtab *s;
2525 register struct symbol *sym;
2526 /* The symtab that SYM was found in. */
2527 struct symtab *sym_symtab;
2529 register CORE_ADDR pc;
2530 register struct minimal_symbol *msymbol;
2532 struct symbol *sym_class;
2535 int is_quote_enclosed;
2539 struct symbol **sym_arr;
2541 char *saved_arg = *argptr;
2542 extern char *gdb_completer_quote_characters;
2544 INIT_SAL (&val); /* initialize to zeroes */
2546 /* Defaults have defaults. */
2548 if (default_symtab == 0)
2550 default_symtab = current_source_symtab;
2551 default_line = current_source_line;
2554 /* See if arg is *PC */
2556 if (**argptr == '*')
2559 pc = parse_and_eval_address_1 (argptr);
2561 values.sals = (struct symtab_and_line *)
2562 xmalloc (sizeof (struct symtab_and_line));
2565 values.sals[0] = find_pc_line (pc, 0);
2566 values.sals[0].pc = pc;
2567 values.sals[0].section = find_pc_overlay (pc);
2572 /* 'has_if' is for the syntax:
2573 * (gdb) break foo if (a==b)
2575 if ((ii = strstr (*argptr, " if ")) != NULL ||
2576 (ii = strstr (*argptr, "\tif ")) != NULL ||
2577 (ii = strstr (*argptr, " if\t")) != NULL ||
2578 (ii = strstr (*argptr, "\tif\t")) != NULL ||
2579 (ii = strstr (*argptr, " if(")) != NULL ||
2580 (ii = strstr (*argptr, "\tif( ")) != NULL)
2582 /* Temporarily zap out "if (condition)" to not
2583 * confuse the parenthesis-checking code below.
2584 * This is undone below. Do not change ii!!
2591 /* Set various flags.
2592 * 'has_parens' is important for overload checking, where
2593 * we allow things like:
2594 * (gdb) break c::f(int)
2597 /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
2599 is_quoted = (**argptr
2600 && strchr (gdb_completer_quote_characters, **argptr) != NULL);
2602 has_parens = ((pp = strchr (*argptr, '(')) != NULL
2603 && (pp = strrchr (pp, ')')) != NULL);
2605 /* Now that we're safely past the has_parens check,
2606 * put back " if (condition)" so outer layers can see it
2611 /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM
2612 and we must isolate the first half. Outer layers will call again later
2613 for the second half.
2615 Don't count commas that appear in argument lists of overloaded
2616 functions, or in quoted strings. It's stupid to go to this much
2617 trouble when the rest of the function is such an obvious roach hotel. */
2618 ii = find_toplevel_char (*argptr, ',');
2619 has_comma = (ii != 0);
2621 /* Temporarily zap out second half to not
2622 * confuse the code below.
2623 * This is undone below. Do not change ii!!
2630 /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
2631 /* May also be CLASS::MEMBER, or NAMESPACE::NAME */
2632 /* Look for ':', but ignore inside of <> */
2638 is_quote_enclosed = 1;
2642 is_quote_enclosed = 0;
2647 char *temp_end = find_template_name_end (p);
2649 error ("malformed template specification in command");
2652 /* Check for the end of the first half of the linespec. End of line,
2653 a tab, a double colon or the last single colon, or a space. But
2654 if enclosed in double quotes we do not break on enclosed spaces */
2658 && ((p[1] == ':') || (strchr (p + 1, ':') == NULL)))
2659 || ((p[0] == ' ') && !is_quote_enclosed))
2661 if (p[0] == '.' && strchr (p, ':') == NULL) /* Java qualified method. */
2663 /* Find the *last* '.', since the others are package qualifiers. */
2664 for (p1 = p; *p1; p1++)
2672 while (p[0] == ' ' || p[0] == '\t')
2675 /* if the closing double quote was left at the end, remove it */
2676 if (is_quote_enclosed)
2678 char *closing_quote = strchr (p, '"');
2679 if (closing_quote && closing_quote[1] == '\0')
2680 *closing_quote = '\0';
2683 /* Now that we've safely parsed the first half,
2684 * put back ',' so outer layers can see it
2689 if ((p[0] == ':' || p[0] == '.') && !has_parens)
2694 *argptr = *argptr + 1;
2695 if (p[0] == '.' || p[1] == ':')
2697 char *saved_arg2 = *argptr;
2699 /* First check for "global" namespace specification,
2700 of the form "::foo". If found, skip over the colons
2701 and jump to normal symbol processing */
2702 if ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))
2705 /* We have what looks like a class or namespace
2706 scope specification (A::B), possibly with many
2707 levels of namespaces or classes (A::B::C::D).
2709 Some versions of the HP ANSI C++ compiler (as also possibly
2710 other compilers) generate class/function/member names with
2711 embedded double-colons if they are inside namespaces. To
2712 handle this, we loop a few times, considering larger and
2713 larger prefixes of the string as though they were single
2714 symbols. So, if the initially supplied string is
2715 A::B::C::D::foo, we have to look up "A", then "A::B",
2716 then "A::B::C", then "A::B::C::D", and finally
2717 "A::B::C::D::foo" as single, monolithic symbols, because
2718 A, B, C or D may be namespaces.
2720 Note that namespaces can nest only inside other
2721 namespaces, and not inside classes. So we need only
2722 consider *prefixes* of the string; there is no need to look up
2723 "B::C" separately as a symbol in the previous example. */
2725 p2 = p; /* save for restart */
2728 /* Extract the class name. */
2730 while (p != *argptr && p[-1] == ' ')
2732 copy = (char *) alloca (p - *argptr + 1);
2733 memcpy (copy, *argptr, p - *argptr);
2734 copy[p - *argptr] = 0;
2736 /* Discard the class name from the arg. */
2737 p = p1 + (p1[0] == ':' ? 2 : 1);
2738 while (*p == ' ' || *p == '\t')
2742 sym_class = lookup_symbol (copy, 0, STRUCT_NAMESPACE, 0,
2743 (struct symtab **) NULL);
2746 (t = check_typedef (SYMBOL_TYPE (sym_class)),
2747 (TYPE_CODE (t) == TYPE_CODE_STRUCT
2748 || TYPE_CODE (t) == TYPE_CODE_UNION)))
2750 /* Arg token is not digits => try it as a function name
2751 Find the next token(everything up to end or next blank). */
2753 && strchr (gdb_completer_quote_characters, **argptr) != NULL)
2755 p = skip_quoted (*argptr);
2756 *argptr = *argptr + 1;
2761 while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':')
2765 q = operator_chars (*argptr, &q1);
2769 char *tmp = alloca (q1 - q + 1);
2770 memcpy (tmp, q, q1 - q);
2772 opname = cplus_mangle_opname (tmp, DMGL_ANSI);
2776 printf_filtered ("no mangling for \"%s\"\n", tmp);
2777 cplusplus_hint (saved_arg);
2778 return_to_top_level (RETURN_ERROR);
2780 copy = (char*) alloca (3 + strlen(opname));
2781 sprintf (copy, "__%s", opname);
2787 copy = (char *) alloca (p - *argptr + 1);
2788 memcpy (copy, *argptr, p - *argptr);
2789 copy[p - *argptr] = '\0';
2791 && copy[p - *argptr - 1]
2792 && strchr (gdb_completer_quote_characters,
2793 copy[p - *argptr - 1]) != NULL)
2794 copy[p - *argptr - 1] = '\0';
2797 /* no line number may be specified */
2798 while (*p == ' ' || *p == '\t')
2803 i1 = 0; /* counter for the symbol array */
2804 sym_arr = (struct symbol **) alloca (total_number_of_methods (t)
2805 * sizeof (struct symbol *));
2807 if (destructor_name_p (copy, t))
2809 /* Destructors are a special case. */
2810 int m_index, f_index;
2812 if (get_destructor_fn_field (t, &m_index, &f_index))
2814 struct fn_field *f = TYPE_FN_FIELDLIST1 (t, m_index);
2817 lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, f_index),
2818 NULL, VAR_NAMESPACE, (int *) NULL,
2819 (struct symtab **) NULL);
2825 i1 = find_methods (t, copy, sym_arr);
2828 /* There is exactly one field with that name. */
2831 if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
2833 values.sals = (struct symtab_and_line *)
2834 xmalloc (sizeof (struct symtab_and_line));
2836 values.sals[0] = find_function_start_sal (sym,
2847 /* There is more than one field with that name
2848 (overloaded). Ask the user which one to use. */
2849 return decode_line_2 (sym_arr, i1, funfirstline, canonical);
2855 if (OPNAME_PREFIX_P (copy))
2857 tmp = (char *) alloca (strlen (copy + 3) + 9);
2858 strcpy (tmp, "operator ");
2859 strcat (tmp, copy + 3);
2866 ("the class `%s' does not have destructor defined\n",
2867 SYMBOL_SOURCE_NAME (sym_class));
2870 ("the class %s does not have any method named %s\n",
2871 SYMBOL_SOURCE_NAME (sym_class), tmp);
2872 cplusplus_hint (saved_arg);
2873 return_to_top_level (RETURN_ERROR);
2877 /* Move pointer up to next possible class/namespace token */
2878 p = p2 + 1; /* restart with old value +1 */
2879 /* Move pointer ahead to next double-colon */
2880 while (*p && (p[0] != ' ') && (p[0] != '\t') && (p[0] != '\''))
2884 temp_end = find_template_name_end (p);
2886 error ("malformed template specification in command");
2889 else if ((p[0] == ':') && (p[1] == ':'))
2890 break; /* found double-colon */
2896 break; /* out of the while (1) */
2898 p2 = p; /* save restart for next time around */
2899 *argptr = saved_arg2; /* restore argptr */
2902 /* Last chance attempt -- check entire name as a symbol */
2903 /* Use "copy" in preparation for jumping out of this block,
2904 to be consistent with usage following the jump target */
2905 copy = (char *) alloca (p - saved_arg2 + 1);
2906 memcpy (copy, saved_arg2, p - saved_arg2);
2907 /* Note: if is_quoted should be true, we snuff out quote here anyway */
2908 copy[p - saved_arg2] = '\000';
2909 /* Set argptr to skip over the name */
2910 *argptr = (*p == '\'') ? p + 1 : p;
2911 /* Look up entire name */
2912 sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
2913 s = (struct symtab *) 0;
2914 /* Prepare to jump: restore the " if (condition)" so outer layers see it */
2915 /* Symbol was found --> jump to normal symbol processing.
2916 Code following "symbol_found" expects "copy" to have the
2917 symbol name, "sym" to have the symbol pointer, "s" to be
2918 a specified file's symtab, and sym_symtab to be the symbol's
2920 /* By jumping there we avoid falling through the FILE:LINE and
2921 FILE:FUNC processing stuff below */
2925 /* Couldn't find any interpretation as classes/namespaces, so give up */
2927 /* The quotes are important if copy is empty. */
2929 ("Can't find member of namespace, class, struct, or union named \"%s\"\n", copy);
2930 cplusplus_hint (saved_arg);
2931 return_to_top_level (RETURN_ERROR);
2936 /* Extract the file name. */
2938 while (p != *argptr && p[-1] == ' ')
2940 if ((*p == '"') && is_quote_enclosed)
2942 copy = (char *) alloca (p - *argptr + 1);
2943 if ((**argptr == '"') && is_quote_enclosed)
2945 memcpy (copy, *argptr + 1, p - *argptr - 1);
2946 /* It may have the ending quote right after the file name */
2947 if (copy[p - *argptr - 2] == '"')
2948 copy[p - *argptr - 2] = 0;
2950 copy[p - *argptr - 1] = 0;
2954 memcpy (copy, *argptr, p - *argptr);
2955 copy[p - *argptr] = 0;
2958 /* Find that file's data. */
2959 s = lookup_symtab (copy);
2962 if (!have_full_symbols () && !have_partial_symbols ())
2963 error (no_symtab_msg);
2964 error ("No source file named %s.", copy);
2967 /* Discard the file name from the arg. */
2969 while (*p == ' ' || *p == '\t')
2974 /* No one really seems to know why this was added. It certainly
2975 breaks the command line, though, whenever the passed
2976 name is of the form ClassName::Method. This bit of code
2977 singles out the class name, and if funfirstline is set (for
2978 example, you are setting a breakpoint at this function),
2979 you get an error. This did not occur with earlier
2980 verions, so I am ifdef'ing this out. 3/29/99 */
2983 /* Check if what we have till now is a symbol name */
2985 /* We may be looking at a template instantiation such
2986 as "foo<int>". Check here whether we know about it,
2987 instead of falling through to the code below which
2988 handles ordinary function names, because that code
2989 doesn't like seeing '<' and '>' in a name -- the
2990 skip_quoted call doesn't go past them. So see if we
2991 can figure it out right now. */
2993 copy = (char *) alloca (p - *argptr + 1);
2994 memcpy (copy, *argptr, p - *argptr);
2995 copy[p - *argptr] = '\000';
2996 sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
2999 /* Yes, we have a symbol; jump to symbol processing */
3000 /* Code after symbol_found expects S, SYM_SYMTAB, SYM,
3001 and COPY to be set correctly */
3002 *argptr = (*p == '\'') ? p + 1 : p;
3003 s = (struct symtab *) 0;
3006 /* Otherwise fall out from here and go to file/line spec
3011 /* S is specified file's symtab, or 0 if no file specified.
3012 arg no longer contains the file name. */
3014 /* Check whether arg is all digits (and sign) */
3017 if (*q == '-' || *q == '+')
3019 while (*q >= '0' && *q <= '9')
3022 if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ','))
3024 /* We found a token consisting of all digits -- at least one digit. */
3031 /* We might need a canonical line spec if no file was specified. */
3032 int need_canonical = (s == 0) ? 1 : 0;
3034 /* This is where we need to make sure that we have good defaults.
3035 We must guarantee that this section of code is never executed
3036 when we are called with just a function name, since
3037 select_source_symtab calls us with such an argument */
3039 if (s == 0 && default_symtab == 0)
3041 select_source_symtab (0);
3042 default_symtab = current_source_symtab;
3043 default_line = current_source_line;
3046 if (**argptr == '+')
3047 sign = plus, (*argptr)++;
3048 else if (**argptr == '-')
3049 sign = minus, (*argptr)++;
3050 val.line = atoi (*argptr);
3057 val.line = default_line + val.line;
3063 val.line = default_line - val.line;
3068 break; /* No need to adjust val.line. */
3071 while (*q == ' ' || *q == '\t')
3077 /* It is possible that this source file has more than one symtab,
3078 and that the new line number specification has moved us from the
3079 default (in s) to a new one. */
3080 val.symtab = find_line_symtab (s, val.line, NULL, NULL);
3081 if (val.symtab == 0)
3085 values.sals = (struct symtab_and_line *)
3086 xmalloc (sizeof (struct symtab_and_line));
3087 values.sals[0] = val;
3090 build_canonical_line_spec (values.sals, NULL, canonical);
3094 /* Arg token is not digits => try it as a variable name
3095 Find the next token (everything up to end or next whitespace). */
3097 if (**argptr == '$') /* May be a convenience variable */
3098 p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); /* One or two $ chars possible */
3101 p = skip_quoted (*argptr);
3103 error ("Unmatched single quote.");
3105 else if (has_parens)
3111 p = skip_quoted (*argptr);
3114 if (is_quote_enclosed && **argptr == '"')
3117 copy = (char *) alloca (p - *argptr + 1);
3118 memcpy (copy, *argptr, p - *argptr);
3119 copy[p - *argptr] = '\0';
3122 && copy[0] == copy[p - *argptr - 1]
3123 && strchr (gdb_completer_quote_characters, copy[0]) != NULL)
3125 copy[p - *argptr - 1] = '\0';
3128 while (*p == ' ' || *p == '\t')
3132 /* If it starts with $: may be a legitimate variable or routine name
3133 (e.g. HP-UX millicode routines such as $$dyncall), or it may
3134 be history value, or it may be a convenience variable */
3140 int need_canonical = 0;
3142 p = (copy[1] == '$') ? copy + 2 : copy + 1;
3143 while (*p >= '0' && *p <= '9')
3145 if (!*p) /* reached end of token without hitting non-digit */
3147 /* We have a value history reference */
3148 sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index);
3149 valx = access_value_history ((copy[1] == '$') ? -index : index);
3150 if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
3151 error ("History values used in line specs must have integer values.");
3155 /* Not all digits -- may be user variable/function or a
3156 convenience variable */
3158 /* Look up entire name as a symbol first */
3159 sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
3160 s = (struct symtab *) 0;
3162 /* Symbol was found --> jump to normal symbol processing.
3163 Code following "symbol_found" expects "copy" to have the
3164 symbol name, "sym" to have the symbol pointer, "s" to be
3165 a specified file's symtab, and sym_symtab to be the symbol's
3170 /* If symbol was not found, look in minimal symbol tables */
3171 msymbol = lookup_minimal_symbol (copy, 0, 0);
3172 /* Min symbol was found --> jump to minsym processing. */
3174 goto minimal_symbol_found;
3176 /* Not a user variable or function -- must be convenience variable */
3177 need_canonical = (s == 0) ? 1 : 0;
3178 valx = value_of_internalvar (lookup_internalvar (copy + 1));
3179 if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
3180 error ("Convenience variables used in line specs must have integer values.");
3183 /* Either history value or convenience value from above, in valx */
3184 val.symtab = s ? s : default_symtab;
3185 val.line = value_as_long (valx);
3188 values.sals = (struct symtab_and_line *) xmalloc (sizeof val);
3189 values.sals[0] = val;
3193 build_canonical_line_spec (values.sals, NULL, canonical);
3199 /* Look up that token as a variable.
3200 If file specified, use that file's per-file block to start with. */
3202 sym = lookup_symbol (copy,
3203 (s ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)
3204 : get_selected_block ()),
3205 VAR_NAMESPACE, 0, &sym_symtab);
3207 symbol_found: /* We also jump here from inside the C++ class/namespace
3208 code on finding a symbol of the form "A::B::C" */
3212 if (SYMBOL_CLASS (sym) == LOC_BLOCK)
3214 /* Arg is the name of a function */
3215 values.sals = (struct symtab_and_line *)
3216 xmalloc (sizeof (struct symtab_and_line));
3217 values.sals[0] = find_function_start_sal (sym, funfirstline);
3220 /* Don't use the SYMBOL_LINE; if used at all it points to
3221 the line containing the parameters or thereabouts, not
3222 the first line of code. */
3224 /* We might need a canonical line spec if it is a static
3228 struct blockvector *bv = BLOCKVECTOR (sym_symtab);
3229 struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
3230 if (lookup_block_symbol (b, copy, VAR_NAMESPACE) != NULL)
3231 build_canonical_line_spec (values.sals, copy, canonical);
3238 error ("\"%s\" is not a function", copy);
3239 else if (SYMBOL_LINE (sym) != 0)
3241 /* We know its line number. */
3242 values.sals = (struct symtab_and_line *)
3243 xmalloc (sizeof (struct symtab_and_line));
3245 memset (&values.sals[0], 0, sizeof (values.sals[0]));
3246 values.sals[0].symtab = sym_symtab;
3247 values.sals[0].line = SYMBOL_LINE (sym);
3251 /* This can happen if it is compiled with a compiler which doesn't
3252 put out line numbers for variables. */
3253 /* FIXME: Shouldn't we just set .line and .symtab to zero
3254 and return? For example, "info line foo" could print
3256 error ("Line number not known for symbol \"%s\"", copy);
3260 msymbol = lookup_minimal_symbol (copy, NULL, NULL);
3262 minimal_symbol_found: /* We also jump here from the case for variables
3263 that begin with '$' */
3265 if (msymbol != NULL)
3267 values.sals = (struct symtab_and_line *)
3268 xmalloc (sizeof (struct symtab_and_line));
3269 values.sals[0] = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol),
3270 (struct sec *) 0, 0);
3271 values.sals[0].section = SYMBOL_BFD_SECTION (msymbol);
3274 values.sals[0].pc += FUNCTION_START_OFFSET;
3275 values.sals[0].pc = SKIP_PROLOGUE (values.sals[0].pc);
3281 if (!have_full_symbols () &&
3282 !have_partial_symbols () && !have_minimal_symbols ())
3283 error (no_symtab_msg);
3285 error ("Function \"%s\" not defined.", copy);
3286 return values; /* for lint */
3289 struct symtabs_and_lines
3290 decode_line_spec (string, funfirstline)
3294 struct symtabs_and_lines sals;
3296 error ("Empty line specification.");
3297 sals = decode_line_1 (&string, funfirstline,
3298 current_source_symtab, current_source_line,
3301 error ("Junk at end of line specification: %s", string);
3305 /* Given a list of NELTS symbols in SYM_ARR, return a list of lines to
3306 operate on (ask user if necessary).
3307 If CANONICAL is non-NULL return a corresponding array of mangled names
3308 as canonical line specs there. */
3310 static struct symtabs_and_lines
3311 decode_line_2 (sym_arr, nelts, funfirstline, canonical)
3312 struct symbol *sym_arr[];
3317 struct symtabs_and_lines values, return_values;
3322 struct cleanup *old_chain;
3323 char **canonical_arr = (char **) NULL;
3325 values.sals = (struct symtab_and_line *)
3326 alloca (nelts * sizeof (struct symtab_and_line));
3327 return_values.sals = (struct symtab_and_line *)
3328 xmalloc (nelts * sizeof (struct symtab_and_line));
3329 old_chain = make_cleanup (free, return_values.sals);
3333 canonical_arr = (char **) xmalloc (nelts * sizeof (char *));
3334 make_cleanup (free, canonical_arr);
3335 memset (canonical_arr, 0, nelts * sizeof (char *));
3336 *canonical = canonical_arr;
3340 printf_unfiltered ("[0] cancel\n[1] all\n");
3343 INIT_SAL (&return_values.sals[i]); /* initialize to zeroes */
3344 INIT_SAL (&values.sals[i]);
3345 if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK)
3347 values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline);
3348 printf_unfiltered ("[%d] %s at %s:%d\n",
3350 SYMBOL_SOURCE_NAME (sym_arr[i]),
3351 values.sals[i].symtab->filename,
3352 values.sals[i].line);
3355 printf_unfiltered ("?HERE\n");
3359 if ((prompt = getenv ("PS2")) == NULL)
3363 args = command_line_input (prompt, 0, "overload-choice");
3365 if (args == 0 || *args == 0)
3366 error_no_arg ("one or more choice numbers");
3374 while (*arg1 >= '0' && *arg1 <= '9')
3376 if (*arg1 && *arg1 != ' ' && *arg1 != '\t')
3377 error ("Arguments must be choice numbers.");
3382 error ("cancelled");
3387 for (i = 0; i < nelts; i++)
3389 if (canonical_arr[i] == NULL)
3391 symname = SYMBOL_NAME (sym_arr[i]);
3392 canonical_arr[i] = savestring (symname, strlen (symname));
3396 memcpy (return_values.sals, values.sals,
3397 (nelts * sizeof (struct symtab_and_line)));
3398 return_values.nelts = nelts;
3399 discard_cleanups (old_chain);
3400 return return_values;
3403 if (num >= nelts + 2)
3405 printf_unfiltered ("No choice number %d.\n", num);
3410 if (values.sals[num].pc)
3414 symname = SYMBOL_NAME (sym_arr[num]);
3415 make_cleanup (free, symname);
3416 canonical_arr[i] = savestring (symname, strlen (symname));
3418 return_values.sals[i++] = values.sals[num];
3419 values.sals[num].pc = 0;
3423 printf_unfiltered ("duplicate request for %d ignored.\n", num);
3428 while (*args == ' ' || *args == '\t')
3431 return_values.nelts = i;
3432 discard_cleanups (old_chain);
3433 return return_values;
3437 /* Slave routine for sources_info. Force line breaks at ,'s.
3438 NAME is the name to print and *FIRST is nonzero if this is the first
3439 name printed. Set *FIRST to zero. */
3441 output_source_filename (name, first)
3445 /* Table of files printed so far. Since a single source file can
3446 result in several partial symbol tables, we need to avoid printing
3447 it more than once. Note: if some of the psymtabs are read in and
3448 some are not, it gets printed both under "Source files for which
3449 symbols have been read" and "Source files for which symbols will
3450 be read in on demand". I consider this a reasonable way to deal
3451 with the situation. I'm not sure whether this can also happen for
3452 symtabs; it doesn't hurt to check. */
3453 static char **tab = NULL;
3454 /* Allocated size of tab in elements.
3455 Start with one 256-byte block (when using GNU malloc.c).
3456 24 is the malloc overhead when range checking is in effect. */
3457 static int tab_alloc_size = (256 - 24) / sizeof (char *);
3458 /* Current size of tab in elements. */
3459 static int tab_cur_size;
3466 tab = (char **) xmalloc (tab_alloc_size * sizeof (*tab));
3470 /* Is NAME in tab? */
3471 for (p = tab; p < tab + tab_cur_size; p++)
3472 if (STREQ (*p, name))
3473 /* Yes; don't print it again. */
3475 /* No; add it to tab. */
3476 if (tab_cur_size == tab_alloc_size)
3478 tab_alloc_size *= 2;
3479 tab = (char **) xrealloc ((char *) tab, tab_alloc_size * sizeof (*tab));
3481 tab[tab_cur_size++] = name;
3489 printf_filtered (", ");
3493 fputs_filtered (name, gdb_stdout);
3497 sources_info (ignore, from_tty)
3501 register struct symtab *s;
3502 register struct partial_symtab *ps;
3503 register struct objfile *objfile;
3506 if (!have_full_symbols () && !have_partial_symbols ())
3508 error (no_symtab_msg);
3511 printf_filtered ("Source files for which symbols have been read in:\n\n");
3514 ALL_SYMTABS (objfile, s)
3516 output_source_filename (s->filename, &first);
3518 printf_filtered ("\n\n");
3520 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
3523 ALL_PSYMTABS (objfile, ps)
3527 output_source_filename (ps->filename, &first);
3530 printf_filtered ("\n");
3534 file_matches (file, files, nfiles)
3541 if (file != NULL && nfiles != 0)
3543 for (i = 0; i < nfiles; i++)
3545 if (strcmp (files[i], basename (file)) == 0)
3549 else if (nfiles == 0)
3554 /* Free any memory associated with a search. */
3556 free_search_symbols (symbols)
3557 struct symbol_search *symbols;
3559 struct symbol_search *p;
3560 struct symbol_search *next;
3562 for (p = symbols; p != NULL; p = next)
3570 do_free_search_symbols_cleanup (void *symbols)
3572 free_search_symbols (symbols);
3576 make_cleanup_free_search_symbols (struct symbol_search *symbols)
3578 return make_cleanup (do_free_search_symbols_cleanup, symbols);
3582 /* Search the symbol table for matches to the regular expression REGEXP,
3583 returning the results in *MATCHES.
3585 Only symbols of KIND are searched:
3586 FUNCTIONS_NAMESPACE - search all functions
3587 TYPES_NAMESPACE - search all type names
3588 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
3589 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
3590 and constants (enums)
3592 free_search_symbols should be called when *MATCHES is no longer needed.
3595 search_symbols (regexp, kind, nfiles, files, matches)
3597 namespace_enum kind;
3600 struct symbol_search **matches;
3603 register struct symtab *s;
3604 register struct partial_symtab *ps;
3605 register struct blockvector *bv;
3606 struct blockvector *prev_bv = 0;
3607 register struct block *b;
3610 register struct symbol *sym;
3611 struct partial_symbol **psym;
3612 struct objfile *objfile;
3613 struct minimal_symbol *msymbol;
3616 static enum minimal_symbol_type types[]
3618 {mst_data, mst_text, mst_abs, mst_unknown};
3619 static enum minimal_symbol_type types2[]
3621 {mst_bss, mst_file_text, mst_abs, mst_unknown};
3622 static enum minimal_symbol_type types3[]
3624 {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown};
3625 static enum minimal_symbol_type types4[]
3627 {mst_file_bss, mst_text, mst_abs, mst_unknown};
3628 enum minimal_symbol_type ourtype;
3629 enum minimal_symbol_type ourtype2;
3630 enum minimal_symbol_type ourtype3;
3631 enum minimal_symbol_type ourtype4;
3632 struct symbol_search *sr;
3633 struct symbol_search *psr;
3634 struct symbol_search *tail;
3635 struct cleanup *old_chain = NULL;
3637 if (kind < LABEL_NAMESPACE)
3638 error ("must search on specific namespace");
3640 ourtype = types[(int) (kind - LABEL_NAMESPACE)];
3641 ourtype2 = types2[(int) (kind - LABEL_NAMESPACE)];
3642 ourtype3 = types3[(int) (kind - LABEL_NAMESPACE)];
3643 ourtype4 = types4[(int) (kind - LABEL_NAMESPACE)];
3645 sr = *matches = NULL;
3650 /* Make sure spacing is right for C++ operators.
3651 This is just a courtesy to make the matching less sensitive
3652 to how many spaces the user leaves between 'operator'
3653 and <TYPENAME> or <OPERATOR>. */
3655 char *opname = operator_chars (regexp, &opend);
3658 int fix = -1; /* -1 means ok; otherwise number of spaces needed. */
3659 if (isalpha (*opname) || *opname == '_' || *opname == '$')
3661 /* There should 1 space between 'operator' and 'TYPENAME'. */
3662 if (opname[-1] != ' ' || opname[-2] == ' ')
3667 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
3668 if (opname[-1] == ' ')
3671 /* If wrong number of spaces, fix it. */
3674 char *tmp = (char *) alloca (opend - opname + 10);
3675 sprintf (tmp, "operator%.*s%s", fix, " ", opname);
3680 if (0 != (val = re_comp (regexp)))
3681 error ("Invalid regexp (%s): %s", val, regexp);
3684 /* Search through the partial symtabs *first* for all symbols
3685 matching the regexp. That way we don't have to reproduce all of
3686 the machinery below. */
3688 ALL_PSYMTABS (objfile, ps)
3690 struct partial_symbol **bound, **gbound, **sbound;
3696 gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms;
3697 sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms;
3700 /* Go through all of the symbols stored in a partial
3701 symtab in one loop. */
3702 psym = objfile->global_psymbols.list + ps->globals_offset;
3707 if (bound == gbound && ps->n_static_syms != 0)
3709 psym = objfile->static_psymbols.list + ps->statics_offset;
3720 /* If it would match (logic taken from loop below)
3721 load the file and go on to the next one */
3722 if (file_matches (ps->filename, files, nfiles)
3723 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (*psym))
3724 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (*psym) != LOC_TYPEDEF
3725 && SYMBOL_CLASS (*psym) != LOC_BLOCK)
3726 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK)
3727 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_TYPEDEF)
3728 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK))))
3730 PSYMTAB_TO_SYMTAB (ps);
3738 /* Here, we search through the minimal symbol tables for functions
3739 and variables that match, and force their symbols to be read.
3740 This is in particular necessary for demangled variable names,
3741 which are no longer put into the partial symbol tables.
3742 The symbol will then be found during the scan of symtabs below.
3744 For functions, find_pc_symtab should succeed if we have debug info
3745 for the function, for variables we have to call lookup_symbol
3746 to determine if the variable has debug info.
3747 If the lookup fails, set found_misc so that we will rescan to print
3748 any matching symbols without debug info.
3751 if (nfiles == 0 && (kind == VARIABLES_NAMESPACE || kind == FUNCTIONS_NAMESPACE))
3753 ALL_MSYMBOLS (objfile, msymbol)
3755 if (MSYMBOL_TYPE (msymbol) == ourtype ||
3756 MSYMBOL_TYPE (msymbol) == ourtype2 ||
3757 MSYMBOL_TYPE (msymbol) == ourtype3 ||
3758 MSYMBOL_TYPE (msymbol) == ourtype4)
3760 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
3762 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))
3764 if (kind == FUNCTIONS_NAMESPACE
3765 || lookup_symbol (SYMBOL_NAME (msymbol),
3766 (struct block *) NULL,
3768 0, (struct symtab **) NULL) == NULL)
3776 ALL_SYMTABS (objfile, s)
3778 bv = BLOCKVECTOR (s);
3779 /* Often many files share a blockvector.
3780 Scan each blockvector only once so that
3781 we don't get every symbol many times.
3782 It happens that the first symtab in the list
3783 for any given blockvector is the main file. */
3785 for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
3787 b = BLOCKVECTOR_BLOCK (bv, i);
3788 /* Skip the sort if this block is always sorted. */
3789 if (!BLOCK_SHOULD_SORT (b))
3790 sort_block_syms (b);
3791 for (j = 0; j < BLOCK_NSYMS (b); j++)
3794 sym = BLOCK_SYM (b, j);
3795 if (file_matches (s->filename, files, nfiles)
3796 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (sym))
3797 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (sym) != LOC_TYPEDEF
3798 && SYMBOL_CLASS (sym) != LOC_BLOCK
3799 && SYMBOL_CLASS (sym) != LOC_CONST)
3800 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK)
3801 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
3802 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK))))
3805 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
3809 psr->msymbol = NULL;
3814 old_chain = make_cleanup_free_search_symbols (sr);
3825 /* If there are no eyes, avoid all contact. I mean, if there are
3826 no debug symbols, then print directly from the msymbol_vector. */
3828 if (found_misc || kind != FUNCTIONS_NAMESPACE)
3830 ALL_MSYMBOLS (objfile, msymbol)
3832 if (MSYMBOL_TYPE (msymbol) == ourtype ||
3833 MSYMBOL_TYPE (msymbol) == ourtype2 ||
3834 MSYMBOL_TYPE (msymbol) == ourtype3 ||
3835 MSYMBOL_TYPE (msymbol) == ourtype4)
3837 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
3839 /* Functions: Look up by address. */
3840 if (kind != FUNCTIONS_NAMESPACE ||
3841 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))))
3843 /* Variables/Absolutes: Look up by name */
3844 if (lookup_symbol (SYMBOL_NAME (msymbol),
3845 (struct block *) NULL, VAR_NAMESPACE,
3846 0, (struct symtab **) NULL) == NULL)
3849 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
3851 psr->msymbol = msymbol;
3858 old_chain = make_cleanup_free_search_symbols (sr);
3872 discard_cleanups (old_chain);
3875 /* Helper function for symtab_symbol_info, this function uses
3876 the data returned from search_symbols() to print information
3877 regarding the match to gdb_stdout.
3880 print_symbol_info (kind, s, sym, block, last)
3881 namespace_enum kind;
3887 if (last == NULL || strcmp (last, s->filename) != 0)
3889 fputs_filtered ("\nFile ", gdb_stdout);
3890 fputs_filtered (s->filename, gdb_stdout);
3891 fputs_filtered (":\n", gdb_stdout);
3894 if (kind != TYPES_NAMESPACE && block == STATIC_BLOCK)
3895 printf_filtered ("static ");
3897 /* Typedef that is not a C++ class */
3898 if (kind == TYPES_NAMESPACE
3899 && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE)
3900 c_typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout);
3901 /* variable, func, or typedef-that-is-c++-class */
3902 else if (kind < TYPES_NAMESPACE ||
3903 (kind == TYPES_NAMESPACE &&
3904 SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE))
3906 type_print (SYMBOL_TYPE (sym),
3907 (SYMBOL_CLASS (sym) == LOC_TYPEDEF
3908 ? "" : SYMBOL_SOURCE_NAME (sym)),
3911 printf_filtered (";\n");
3916 /* Tiemann says: "info methods was never implemented." */
3917 char *demangled_name;
3918 c_type_print_base (TYPE_FN_FIELD_TYPE (t, block),
3920 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t, block),
3922 if (TYPE_FN_FIELD_STUB (t, block))
3923 check_stub_method (TYPE_DOMAIN_TYPE (type), j, block);
3925 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t, block),
3926 DMGL_ANSI | DMGL_PARAMS);
3927 if (demangled_name == NULL)
3928 fprintf_filtered (stream, "<badly mangled name %s>",
3929 TYPE_FN_FIELD_PHYSNAME (t, block));
3932 fputs_filtered (demangled_name, stream);
3933 free (demangled_name);
3939 /* This help function for symtab_symbol_info() prints information
3940 for non-debugging symbols to gdb_stdout.
3943 print_msymbol_info (msymbol)
3944 struct minimal_symbol *msymbol;
3946 printf_filtered (" %08lx %s\n",
3947 (unsigned long) SYMBOL_VALUE_ADDRESS (msymbol),
3948 SYMBOL_SOURCE_NAME (msymbol));
3951 /* This is the guts of the commands "info functions", "info types", and
3952 "info variables". It calls search_symbols to find all matches and then
3953 print_[m]symbol_info to print out some useful information about the
3957 symtab_symbol_info (regexp, kind, from_tty)
3959 namespace_enum kind;
3962 static char *classnames[]
3964 {"variable", "function", "type", "method"};
3965 struct symbol_search *symbols;
3966 struct symbol_search *p;
3967 struct cleanup *old_chain;
3968 char *last_filename = NULL;
3971 /* must make sure that if we're interrupted, symbols gets freed */
3972 search_symbols (regexp, kind, 0, (char **) NULL, &symbols);
3973 old_chain = make_cleanup_free_search_symbols (symbols);
3975 printf_filtered (regexp
3976 ? "All %ss matching regular expression \"%s\":\n"
3977 : "All defined %ss:\n",
3978 classnames[(int) (kind - LABEL_NAMESPACE - 1)], regexp);
3980 for (p = symbols; p != NULL; p = p->next)
3984 if (p->msymbol != NULL)
3988 printf_filtered ("\nNon-debugging symbols:\n");
3991 print_msymbol_info (p->msymbol);
3995 print_symbol_info (kind,
4000 last_filename = p->symtab->filename;
4004 do_cleanups (old_chain);
4008 variables_info (regexp, from_tty)
4012 symtab_symbol_info (regexp, VARIABLES_NAMESPACE, from_tty);
4016 functions_info (regexp, from_tty)
4020 symtab_symbol_info (regexp, FUNCTIONS_NAMESPACE, from_tty);
4025 types_info (regexp, from_tty)
4029 symtab_symbol_info (regexp, TYPES_NAMESPACE, from_tty);
4033 /* Tiemann says: "info methods was never implemented." */
4035 methods_info (regexp)
4038 symtab_symbol_info (regexp, METHODS_NAMESPACE, 0, from_tty);
4042 /* Breakpoint all functions matching regular expression. */
4045 rbreak_command_wrapper (regexp, from_tty)
4049 rbreak_command (regexp, from_tty);
4053 rbreak_command (regexp, from_tty)
4057 struct symbol_search *ss;
4058 struct symbol_search *p;
4059 struct cleanup *old_chain;
4061 search_symbols (regexp, FUNCTIONS_NAMESPACE, 0, (char **) NULL, &ss);
4062 old_chain = make_cleanup_free_search_symbols (ss);
4064 for (p = ss; p != NULL; p = p->next)
4066 if (p->msymbol == NULL)
4068 char *string = (char *) alloca (strlen (p->symtab->filename)
4069 + strlen (SYMBOL_NAME (p->symbol))
4071 strcpy (string, p->symtab->filename);
4072 strcat (string, ":'");
4073 strcat (string, SYMBOL_NAME (p->symbol));
4074 strcat (string, "'");
4075 break_command (string, from_tty);
4076 print_symbol_info (FUNCTIONS_NAMESPACE,
4080 p->symtab->filename);
4084 break_command (SYMBOL_NAME (p->msymbol), from_tty);
4085 printf_filtered ("<function, no debug info> %s;\n",
4086 SYMBOL_SOURCE_NAME (p->msymbol));
4090 do_cleanups (old_chain);
4094 /* Return Nonzero if block a is lexically nested within block b,
4095 or if a and b have the same pc range.
4096 Return zero otherwise. */
4099 struct block *a, *b;
4103 return BLOCK_START (a) >= BLOCK_START (b)
4104 && BLOCK_END (a) <= BLOCK_END (b);
4108 /* Helper routine for make_symbol_completion_list. */
4110 static int return_val_size;
4111 static int return_val_index;
4112 static char **return_val;
4114 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
4116 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
4117 /* Put only the mangled name on the list. */ \
4118 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
4119 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
4120 completion_list_add_name \
4121 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
4123 completion_list_add_name \
4124 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
4127 /* Test to see if the symbol specified by SYMNAME (which is already
4128 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
4129 characters. If so, add it to the current completion list. */
4132 completion_list_add_name (symname, sym_text, sym_text_len, text, word)
4142 /* clip symbols that cannot match */
4144 if (strncmp (symname, sym_text, sym_text_len) != 0)
4149 /* Clip any symbol names that we've already considered. (This is a
4150 time optimization) */
4152 for (i = 0; i < return_val_index; ++i)
4154 if (STREQ (symname, return_val[i]))
4160 /* We have a match for a completion, so add SYMNAME to the current list
4161 of matches. Note that the name is moved to freshly malloc'd space. */
4165 if (word == sym_text)
4167 new = xmalloc (strlen (symname) + 5);
4168 strcpy (new, symname);
4170 else if (word > sym_text)
4172 /* Return some portion of symname. */
4173 new = xmalloc (strlen (symname) + 5);
4174 strcpy (new, symname + (word - sym_text));
4178 /* Return some of SYM_TEXT plus symname. */
4179 new = xmalloc (strlen (symname) + (sym_text - word) + 5);
4180 strncpy (new, word, sym_text - word);
4181 new[sym_text - word] = '\0';
4182 strcat (new, symname);
4185 /* Recheck for duplicates if we intend to add a modified symbol. */
4186 if (word != sym_text)
4188 for (i = 0; i < return_val_index; ++i)
4190 if (STREQ (new, return_val[i]))
4198 if (return_val_index + 3 > return_val_size)
4200 newsize = (return_val_size *= 2) * sizeof (char *);
4201 return_val = (char **) xrealloc ((char *) return_val, newsize);
4203 return_val[return_val_index++] = new;
4204 return_val[return_val_index] = NULL;
4208 /* Return a NULL terminated array of all symbols (regardless of class) which
4209 begin by matching TEXT. If the answer is no symbols, then the return value
4210 is an array which contains only a NULL pointer.
4212 Problem: All of the symbols have to be copied because readline frees them.
4213 I'm not going to worry about this; hopefully there won't be that many. */
4216 make_symbol_completion_list (text, word)
4220 register struct symbol *sym;
4221 register struct symtab *s;
4222 register struct partial_symtab *ps;
4223 register struct minimal_symbol *msymbol;
4224 register struct objfile *objfile;
4225 register struct block *b, *surrounding_static_block = 0;
4227 struct partial_symbol **psym;
4228 /* The symbol we are completing on. Points in same buffer as text. */
4230 /* Length of sym_text. */
4233 /* Now look for the symbol we are supposed to complete on.
4234 FIXME: This should be language-specific. */
4238 char *quote_pos = NULL;
4240 /* First see if this is a quoted string. */
4242 for (p = text; *p != '\0'; ++p)
4244 if (quote_found != '\0')
4246 if (*p == quote_found)
4247 /* Found close quote. */
4249 else if (*p == '\\' && p[1] == quote_found)
4250 /* A backslash followed by the quote character
4251 doesn't end the string. */
4254 else if (*p == '\'' || *p == '"')
4260 if (quote_found == '\'')
4261 /* A string within single quotes can be a symbol, so complete on it. */
4262 sym_text = quote_pos + 1;
4263 else if (quote_found == '"')
4264 /* A double-quoted string is never a symbol, nor does it make sense
4265 to complete it any other way. */
4269 /* It is not a quoted string. Break it based on the characters
4270 which are in symbols. */
4273 if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
4282 sym_text_len = strlen (sym_text);
4284 return_val_size = 100;
4285 return_val_index = 0;
4286 return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *));
4287 return_val[0] = NULL;
4289 /* Look through the partial symtabs for all symbols which begin
4290 by matching SYM_TEXT. Add each one that you find to the list. */
4292 ALL_PSYMTABS (objfile, ps)
4294 /* If the psymtab's been read in we'll get it when we search
4295 through the blockvector. */
4299 for (psym = objfile->global_psymbols.list + ps->globals_offset;
4300 psym < (objfile->global_psymbols.list + ps->globals_offset
4301 + ps->n_global_syms);
4304 /* If interrupted, then quit. */
4306 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
4309 for (psym = objfile->static_psymbols.list + ps->statics_offset;
4310 psym < (objfile->static_psymbols.list + ps->statics_offset
4311 + ps->n_static_syms);
4315 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
4319 /* At this point scan through the misc symbol vectors and add each
4320 symbol you find to the list. Eventually we want to ignore
4321 anything that isn't a text symbol (everything else will be
4322 handled by the psymtab code above). */
4324 ALL_MSYMBOLS (objfile, msymbol)
4327 COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word);
4330 /* Search upwards from currently selected frame (so that we can
4331 complete on local vars. */
4333 for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
4335 if (!BLOCK_SUPERBLOCK (b))
4337 surrounding_static_block = b; /* For elmin of dups */
4340 /* Also catch fields of types defined in this places which match our
4341 text string. Only complete on types visible from current context. */
4343 for (i = 0; i < BLOCK_NSYMS (b); i++)
4345 sym = BLOCK_SYM (b, i);
4346 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
4347 if (SYMBOL_CLASS (sym) == LOC_TYPEDEF)
4349 struct type *t = SYMBOL_TYPE (sym);
4350 enum type_code c = TYPE_CODE (t);
4352 if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT)
4354 for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++)
4356 if (TYPE_FIELD_NAME (t, j))
4358 completion_list_add_name (TYPE_FIELD_NAME (t, j),
4359 sym_text, sym_text_len, text, word);
4367 /* Go through the symtabs and check the externs and statics for
4368 symbols which match. */
4370 ALL_SYMTABS (objfile, s)
4373 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
4374 for (i = 0; i < BLOCK_NSYMS (b); i++)
4376 sym = BLOCK_SYM (b, i);
4377 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
4381 ALL_SYMTABS (objfile, s)
4384 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
4385 /* Don't do this block twice. */
4386 if (b == surrounding_static_block)
4388 for (i = 0; i < BLOCK_NSYMS (b); i++)
4390 sym = BLOCK_SYM (b, i);
4391 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
4395 return (return_val);
4398 /* Determine if PC is in the prologue of a function. The prologue is the area
4399 between the first instruction of a function, and the first executable line.
4400 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
4402 If non-zero, func_start is where we think the prologue starts, possibly
4403 by previous examination of symbol table information.
4407 in_prologue (pc, func_start)
4409 CORE_ADDR func_start;
4411 struct symtab_and_line sal;
4412 CORE_ADDR func_addr, func_end;
4414 /* We have several sources of information we can consult to figure
4416 - Compilers usually emit line number info that marks the prologue
4417 as its own "source line". So the ending address of that "line"
4418 is the end of the prologue. If available, this is the most
4420 - The minimal symbols and partial symbols, which can usually tell
4421 us the starting and ending addresses of a function.
4422 - If we know the function's start address, we can call the
4423 architecture-defined SKIP_PROLOGUE function to analyze the
4424 instruction stream and guess where the prologue ends.
4425 - Our `func_start' argument; if non-zero, this is the caller's
4426 best guess as to the function's entry point. At the time of
4427 this writing, handle_inferior_event doesn't get this right, so
4428 it should be our last resort. */
4430 /* Consult the partial symbol table, to find which function
4432 if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end))
4434 CORE_ADDR prologue_end;
4436 /* We don't even have minsym information, so fall back to using
4437 func_start, if given. */
4439 return 1; /* We *might* be in a prologue. */
4441 prologue_end = SKIP_PROLOGUE (func_start);
4443 return func_start <= pc && pc < prologue_end;
4446 /* If we have line number information for the function, that's
4447 usually pretty reliable. */
4448 sal = find_pc_line (func_addr, 0);
4450 /* Now sal describes the source line at the function's entry point,
4451 which (by convention) is the prologue. The end of that "line",
4452 sal.end, is the end of the prologue.
4454 Note that, for functions whose source code is all on a single
4455 line, the line number information doesn't always end up this way.
4456 So we must verify that our purported end-of-prologue address is
4457 *within* the function, not at its start or end. */
4459 || sal.end <= func_addr
4460 || func_end <= sal.end)
4462 /* We don't have any good line number info, so use the minsym
4463 information, together with the architecture-specific prologue
4465 CORE_ADDR prologue_end = SKIP_PROLOGUE (func_addr);
4467 return func_addr <= pc && pc < prologue_end;
4470 /* We have line number info, and it looks good. */
4471 return func_addr <= pc && pc < sal.end;
4475 /* Begin overload resolution functions */
4476 /* Helper routine for make_symbol_completion_list. */
4478 static int sym_return_val_size;
4479 static int sym_return_val_index;
4480 static struct symbol **sym_return_val;
4482 /* Test to see if the symbol specified by SYMNAME (which is already
4483 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
4484 characters. If so, add it to the current completion list. */
4487 overload_list_add_symbol (sym, oload_name)
4494 /* Get the demangled name without parameters */
4495 char *sym_name = cplus_demangle (SYMBOL_NAME (sym), DMGL_ARM | DMGL_ANSI);
4498 sym_name = (char *) xmalloc (strlen (SYMBOL_NAME (sym)) + 1);
4499 strcpy (sym_name, SYMBOL_NAME (sym));
4502 /* skip symbols that cannot match */
4503 if (strcmp (sym_name, oload_name) != 0)
4509 /* If there is no type information, we can't do anything, so skip */
4510 if (SYMBOL_TYPE (sym) == NULL)
4513 /* skip any symbols that we've already considered. */
4514 for (i = 0; i < sym_return_val_index; ++i)
4515 if (!strcmp (SYMBOL_NAME (sym), SYMBOL_NAME (sym_return_val[i])))
4518 /* We have a match for an overload instance, so add SYM to the current list
4519 * of overload instances */
4520 if (sym_return_val_index + 3 > sym_return_val_size)
4522 newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *);
4523 sym_return_val = (struct symbol **) xrealloc ((char *) sym_return_val, newsize);
4525 sym_return_val[sym_return_val_index++] = sym;
4526 sym_return_val[sym_return_val_index] = NULL;
4531 /* Return a null-terminated list of pointers to function symbols that
4532 * match name of the supplied symbol FSYM.
4533 * This is used in finding all overloaded instances of a function name.
4534 * This has been modified from make_symbol_completion_list. */
4538 make_symbol_overload_list (fsym)
4539 struct symbol *fsym;
4541 register struct symbol *sym;
4542 register struct symtab *s;
4543 register struct partial_symtab *ps;
4544 register struct objfile *objfile;
4545 register struct block *b, *surrounding_static_block = 0;
4547 /* The name we are completing on. */
4548 char *oload_name = NULL;
4549 /* Length of name. */
4550 int oload_name_len = 0;
4552 /* Look for the symbol we are supposed to complete on.
4553 * FIXME: This should be language-specific. */
4555 oload_name = cplus_demangle (SYMBOL_NAME (fsym), DMGL_ARM | DMGL_ANSI);
4558 oload_name = (char *) xmalloc (strlen (SYMBOL_NAME (fsym)) + 1);
4559 strcpy (oload_name, SYMBOL_NAME (fsym));
4561 oload_name_len = strlen (oload_name);
4563 sym_return_val_size = 100;
4564 sym_return_val_index = 0;
4565 sym_return_val = (struct symbol **) xmalloc ((sym_return_val_size + 1) * sizeof (struct symbol *));
4566 sym_return_val[0] = NULL;
4568 /* Look through the partial symtabs for all symbols which begin
4569 by matching OLOAD_NAME. Make sure we read that symbol table in. */
4571 ALL_PSYMTABS (objfile, ps)
4573 struct partial_symbol **psym;
4575 /* If the psymtab's been read in we'll get it when we search
4576 through the blockvector. */
4580 for (psym = objfile->global_psymbols.list + ps->globals_offset;
4581 psym < (objfile->global_psymbols.list + ps->globals_offset
4582 + ps->n_global_syms);
4585 /* If interrupted, then quit. */
4587 /* This will cause the symbol table to be read if it has not yet been */
4588 s = PSYMTAB_TO_SYMTAB (ps);
4591 for (psym = objfile->static_psymbols.list + ps->statics_offset;
4592 psym < (objfile->static_psymbols.list + ps->statics_offset
4593 + ps->n_static_syms);
4597 /* This will cause the symbol table to be read if it has not yet been */
4598 s = PSYMTAB_TO_SYMTAB (ps);
4602 /* Search upwards from currently selected frame (so that we can
4603 complete on local vars. */
4605 for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
4607 if (!BLOCK_SUPERBLOCK (b))
4609 surrounding_static_block = b; /* For elimination of dups */
4612 /* Also catch fields of types defined in this places which match our
4613 text string. Only complete on types visible from current context. */
4615 for (i = 0; i < BLOCK_NSYMS (b); i++)
4617 sym = BLOCK_SYM (b, i);
4618 overload_list_add_symbol (sym, oload_name);
4622 /* Go through the symtabs and check the externs and statics for
4623 symbols which match. */
4625 ALL_SYMTABS (objfile, s)
4628 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
4629 for (i = 0; i < BLOCK_NSYMS (b); i++)
4631 sym = BLOCK_SYM (b, i);
4632 overload_list_add_symbol (sym, oload_name);
4636 ALL_SYMTABS (objfile, s)
4639 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
4640 /* Don't do this block twice. */
4641 if (b == surrounding_static_block)
4643 for (i = 0; i < BLOCK_NSYMS (b); i++)
4645 sym = BLOCK_SYM (b, i);
4646 overload_list_add_symbol (sym, oload_name);
4652 return (sym_return_val);
4655 /* End of overload resolution functions */
4659 _initialize_symtab ()
4661 add_info ("variables", variables_info,
4662 "All global and static variable names, or those matching REGEXP.");
4664 add_com ("whereis", class_info, variables_info,
4665 "All global and static variable names, or those matching REGEXP.");
4667 add_info ("functions", functions_info,
4668 "All function names, or those matching REGEXP.");
4671 /* FIXME: This command has at least the following problems:
4672 1. It prints builtin types (in a very strange and confusing fashion).
4673 2. It doesn't print right, e.g. with
4674 typedef struct foo *FOO
4675 type_print prints "FOO" when we want to make it (in this situation)
4676 print "struct foo *".
4677 I also think "ptype" or "whatis" is more likely to be useful (but if
4678 there is much disagreement "info types" can be fixed). */
4679 add_info ("types", types_info,
4680 "All type names, or those matching REGEXP.");
4683 add_info ("methods", methods_info,
4684 "All method names, or those matching REGEXP::REGEXP.\n\
4685 If the class qualifier is omitted, it is assumed to be the current scope.\n\
4686 If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
4689 add_info ("sources", sources_info,
4690 "Source files in the program.");
4692 add_com ("rbreak", class_breakpoint, rbreak_command,
4693 "Set a breakpoint for all functions matching REGEXP.");
4697 add_com ("lf", class_info, sources_info, "Source files in the program");
4698 add_com ("lg", class_info, variables_info,
4699 "All global and static variable names, or those matching REGEXP.");
4702 /* Initialize the one built-in type that isn't language dependent... */
4703 builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0,
4704 "<unknown type>", (struct objfile *) NULL);