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 "gnu-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 PARAMS ((char *));
52 /* Prototypes for local functions */
54 static int find_methods PARAMS ((struct type *, char *, struct symbol **));
56 static void completion_list_add_name PARAMS ((char *, char *, int, char *,
59 static void build_canonical_line_spec PARAMS ((struct symtab_and_line *,
62 static struct symtabs_and_lines decode_line_2 PARAMS ((struct symbol *[],
65 static void rbreak_command PARAMS ((char *, int));
67 static void types_info PARAMS ((char *, int));
69 static void functions_info PARAMS ((char *, int));
71 static void variables_info PARAMS ((char *, int));
73 static void sources_info PARAMS ((char *, int));
75 static void output_source_filename PARAMS ((char *, int *));
77 char *operator_chars PARAMS ((char *, char **));
79 static int find_line_common PARAMS ((struct linetable *, int, int *));
81 static struct partial_symbol *lookup_partial_symbol PARAMS
82 ((struct partial_symtab *, const char *,
83 int, namespace_enum));
85 static struct partial_symbol *fixup_psymbol_section PARAMS ((struct
86 partial_symbol *, struct objfile *));
88 static struct symtab *lookup_symtab_1 PARAMS ((char *));
90 static void cplusplus_hint PARAMS ((char *));
92 static struct symbol *find_active_alias PARAMS ((struct symbol * sym,
95 /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
96 /* Signals the presence of objects compiled by HP compilers */
97 int hp_som_som_object_present = 0;
99 static void fixup_section PARAMS ((struct general_symbol_info *,
102 static int file_matches PARAMS ((char *, char **, int));
104 static void print_symbol_info PARAMS ((namespace_enum,
105 struct symtab *, struct symbol *,
108 static void print_msymbol_info PARAMS ((struct minimal_symbol *));
110 static void symtab_symbol_info PARAMS ((char *, namespace_enum, int));
112 static void overload_list_add_symbol PARAMS ((struct symbol * sym,
115 void _initialize_symtab PARAMS ((void));
119 /* The single non-language-specific builtin type */
120 struct type *builtin_type_error;
122 /* Block in which the most recently searched-for symbol was found.
123 Might be better to make this a parameter to lookup_symbol and
126 const struct block *block_found;
128 char no_symtab_msg[] = "No symbol table is loaded. Use the \"file\" command.";
130 /* While the C++ support is still in flux, issue a possibly helpful hint on
131 using the new command completion feature on single quoted demangled C++
132 symbols. Remove when loose ends are cleaned up. FIXME -fnf */
135 cplusplus_hint (name)
138 while (*name == '\'')
140 printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name);
141 printf_filtered ("(Note leading single quote.)\n");
144 /* Check for a symtab of a specific name; first in symtabs, then in
145 psymtabs. *If* there is no '/' in the name, a match after a '/'
146 in the symtab filename will also work. */
148 static struct symtab *
149 lookup_symtab_1 (name)
152 register struct symtab *s;
153 register struct partial_symtab *ps;
154 register char *slash;
155 register struct objfile *objfile;
159 /* First, search for an exact match */
161 ALL_SYMTABS (objfile, s)
162 if (STREQ (name, s->filename))
165 slash = strchr (name, '/');
167 /* Now, search for a matching tail (only if name doesn't have any dirs) */
170 ALL_SYMTABS (objfile, s)
172 char *p = s->filename;
173 char *tail = strrchr (p, '/');
182 /* Same search rules as above apply here, but now we look thru the
185 ps = lookup_partial_symtab (name);
190 error ("Internal: readin %s pst for `%s' found when no symtab found.",
193 s = PSYMTAB_TO_SYMTAB (ps);
198 /* At this point, we have located the psymtab for this file, but
199 the conversion to a symtab has failed. This usually happens
200 when we are looking up an include file. In this case,
201 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
202 been created. So, we need to run through the symtabs again in
203 order to find the file.
204 XXX - This is a crock, and should be fixed inside of the the
205 symbol parsing routines. */
209 /* Lookup the symbol table of a source file named NAME. Try a couple
210 of variations if the first lookup doesn't work. */
216 register struct symtab *s;
221 s = lookup_symtab_1 (name);
226 /* This screws c-exp.y:yylex if there is both a type "tree" and a symtab
229 /* If name not found as specified, see if adding ".c" helps. */
230 /* Why is this? Is it just a user convenience? (If so, it's pretty
231 questionable in the presence of C++, FORTRAN, etc.). It's not in
234 copy = (char *) alloca (strlen (name) + 3);
237 s = lookup_symtab_1 (copy);
242 /* We didn't find anything; die. */
246 /* Lookup the partial symbol table of a source file named NAME.
247 *If* there is no '/' in the name, a match after a '/'
248 in the psymtab filename will also work. */
250 struct partial_symtab *
251 lookup_partial_symtab (name)
254 register struct partial_symtab *pst;
255 register struct objfile *objfile;
257 ALL_PSYMTABS (objfile, pst)
259 if (STREQ (name, pst->filename))
265 /* Now, search for a matching tail (only if name doesn't have any dirs) */
267 if (!strchr (name, '/'))
268 ALL_PSYMTABS (objfile, pst)
270 char *p = pst->filename;
271 char *tail = strrchr (p, '/');
283 /* Mangle a GDB method stub type. This actually reassembles the pieces of the
284 full method name, which consist of the class name (from T), the unadorned
285 method name from METHOD_ID, and the signature for the specific overload,
286 specified by SIGNATURE_ID. Note that this function is g++ specific. */
289 gdb_mangle_name (type, method_id, signature_id)
291 int method_id, signature_id;
293 int mangled_name_len;
295 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id);
296 struct fn_field *method = &f[signature_id];
297 char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id);
298 char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id);
299 char *newname = type_name_no_tag (type);
301 /* Does the form of physname indicate that it is the full mangled name
302 of a constructor (not just the args)? */
303 int is_full_physname_constructor;
306 int is_destructor = DESTRUCTOR_PREFIX_P (physname);
307 /* Need a new type prefix. */
308 char *const_prefix = method->is_const ? "C" : "";
309 char *volatile_prefix = method->is_volatile ? "V" : "";
311 int len = (newname == NULL ? 0 : strlen (newname));
313 is_full_physname_constructor =
314 ((physname[0] == '_' && physname[1] == '_' &&
315 (isdigit (physname[2]) || physname[2] == 'Q' || physname[2] == 't'))
316 || (strncmp (physname, "__ct", 4) == 0));
319 is_full_physname_constructor || (newname && STREQ (field_name, newname));
322 is_destructor = (strncmp (physname, "__dt", 4) == 0);
324 if (is_destructor || is_full_physname_constructor)
326 mangled_name = (char *) xmalloc (strlen (physname) + 1);
327 strcpy (mangled_name, physname);
333 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
335 else if (physname[0] == 't' || physname[0] == 'Q')
337 /* The physname for template and qualified methods already includes
339 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
345 sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len);
347 mangled_name_len = ((is_constructor ? 0 : strlen (field_name))
352 /* Only needed for GNU-mangled names. ANSI-mangled names
353 work with the normal mechanisms. */
354 if (OPNAME_PREFIX_P (field_name))
356 const char *opname = cplus_mangle_opname (field_name + 3, 0);
358 error ("No mangling for \"%s\"", field_name);
359 mangled_name_len += strlen (opname);
360 mangled_name = (char *) xmalloc (mangled_name_len);
362 strncpy (mangled_name, field_name, 3);
363 mangled_name[3] = '\0';
364 strcat (mangled_name, opname);
368 mangled_name = (char *) xmalloc (mangled_name_len);
370 mangled_name[0] = '\0';
372 strcpy (mangled_name, field_name);
374 strcat (mangled_name, buf);
375 /* If the class doesn't have a name, i.e. newname NULL, then we just
376 mangle it using 0 for the length of the class. Thus it gets mangled
377 as something starting with `::' rather than `classname::'. */
379 strcat (mangled_name, newname);
381 strcat (mangled_name, physname);
382 return (mangled_name);
387 /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
389 struct partial_symtab *
390 find_pc_sect_psymtab (pc, section)
394 register struct partial_symtab *pst;
395 register struct objfile *objfile;
397 ALL_PSYMTABS (objfile, pst)
399 #if defined(HPUXHPPA)
400 if (pc >= pst->textlow && pc <= pst->texthigh)
402 if (pc >= pst->textlow && pc < pst->texthigh)
405 struct minimal_symbol *msymbol;
406 struct partial_symtab *tpst;
408 /* An objfile that has its functions reordered might have
409 many partial symbol tables containing the PC, but
410 we want the partial symbol table that contains the
411 function containing the PC. */
412 if (!(objfile->flags & OBJF_REORDERED) &&
413 section == 0) /* can't validate section this way */
416 msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
420 for (tpst = pst; tpst != NULL; tpst = tpst->next)
422 #if defined(HPUXHPPA)
423 if (pc >= tpst->textlow && pc <= tpst->texthigh)
425 if (pc >= tpst->textlow && pc < tpst->texthigh)
428 struct partial_symbol *p;
430 p = find_pc_sect_psymbol (tpst, pc, section);
432 && SYMBOL_VALUE_ADDRESS (p)
433 == SYMBOL_VALUE_ADDRESS (msymbol))
443 /* Find which partial symtab contains PC. Return 0 if none.
444 Backward compatibility, no section */
446 struct partial_symtab *
450 return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc));
453 /* Find which partial symbol within a psymtab matches PC and SECTION.
454 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
456 struct partial_symbol *
457 find_pc_sect_psymbol (psymtab, pc, section)
458 struct partial_symtab *psymtab;
462 struct partial_symbol *best = NULL, *p, **pp;
466 psymtab = find_pc_sect_psymtab (pc, section);
470 /* Cope with programs that start at address 0 */
471 best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0;
473 /* Search the global symbols as well as the static symbols, so that
474 find_pc_partial_function doesn't use a minimal symbol and thus
475 cache a bad endaddr. */
476 for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset;
477 (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset)
478 < psymtab->n_global_syms);
482 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
483 && SYMBOL_CLASS (p) == LOC_BLOCK
484 && pc >= SYMBOL_VALUE_ADDRESS (p)
485 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
486 || (psymtab->textlow == 0
487 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
489 if (section) /* match on a specific section */
491 fixup_psymbol_section (p, psymtab->objfile);
492 if (SYMBOL_BFD_SECTION (p) != section)
495 best_pc = SYMBOL_VALUE_ADDRESS (p);
500 for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset;
501 (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset)
502 < psymtab->n_static_syms);
506 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
507 && SYMBOL_CLASS (p) == LOC_BLOCK
508 && pc >= SYMBOL_VALUE_ADDRESS (p)
509 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
510 || (psymtab->textlow == 0
511 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
513 if (section) /* match on a specific section */
515 fixup_psymbol_section (p, psymtab->objfile);
516 if (SYMBOL_BFD_SECTION (p) != section)
519 best_pc = SYMBOL_VALUE_ADDRESS (p);
527 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
528 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
530 struct partial_symbol *
531 find_pc_psymbol (psymtab, pc)
532 struct partial_symtab *psymtab;
535 return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc));
538 /* Debug symbols usually don't have section information. We need to dig that
539 out of the minimal symbols and stash that in the debug symbol. */
542 fixup_section (ginfo, objfile)
543 struct general_symbol_info *ginfo;
544 struct objfile *objfile;
546 struct minimal_symbol *msym;
547 msym = lookup_minimal_symbol (ginfo->name, NULL, objfile);
550 ginfo->bfd_section = SYMBOL_BFD_SECTION (msym);
554 fixup_symbol_section (sym, objfile)
556 struct objfile *objfile;
561 if (SYMBOL_BFD_SECTION (sym))
564 fixup_section (&sym->ginfo, objfile);
569 static struct partial_symbol *
570 fixup_psymbol_section (psym, objfile)
571 struct partial_symbol *psym;
572 struct objfile *objfile;
577 if (SYMBOL_BFD_SECTION (psym))
580 fixup_section (&psym->ginfo, objfile);
585 /* Find the definition for a specified symbol name NAME
586 in namespace NAMESPACE, visible from lexical block BLOCK.
587 Returns the struct symbol pointer, or zero if no symbol is found.
588 If SYMTAB is non-NULL, store the symbol table in which the
589 symbol was found there, or NULL if not found.
590 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
591 NAME is a field of the current implied argument `this'. If so set
592 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
593 BLOCK_FOUND is set to the block in which NAME is found (in the case of
594 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
596 /* This function has a bunch of loops in it and it would seem to be
597 attractive to put in some QUIT's (though I'm not really sure
598 whether it can run long enough to be really important). But there
599 are a few calls for which it would appear to be bad news to quit
600 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
601 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
602 code below which can error(), but that probably doesn't affect
603 these calls since they are looking for a known variable and thus
604 can probably assume it will never hit the C++ code). */
607 lookup_symbol (name, block, namespace, is_a_field_of_this, symtab)
609 register const struct block *block;
610 const namespace_enum namespace;
611 int *is_a_field_of_this;
612 struct symtab **symtab;
614 register struct symbol *sym;
615 register struct symtab *s = NULL;
616 register struct partial_symtab *ps;
617 struct blockvector *bv;
618 register struct objfile *objfile = NULL;
619 register struct block *b;
620 register struct minimal_symbol *msymbol;
622 /* Search specified block and its superiors. */
626 sym = lookup_block_symbol (block, name, namespace);
632 /* Search the list of symtabs for one which contains the
633 address of the start of this block. */
634 ALL_SYMTABS (objfile, s)
636 bv = BLOCKVECTOR (s);
637 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
638 if (BLOCK_START (b) <= BLOCK_START (block)
639 && BLOCK_END (b) > BLOCK_START (block))
646 return fixup_symbol_section (sym, objfile);
648 block = BLOCK_SUPERBLOCK (block);
651 /* FIXME: this code is never executed--block is always NULL at this
652 point. What is it trying to do, anyway? We already should have
653 checked the STATIC_BLOCK above (it is the superblock of top-level
654 blocks). Why is VAR_NAMESPACE special-cased? */
655 /* Don't need to mess with the psymtabs; if we have a block,
656 that file is read in. If we don't, then we deal later with
657 all the psymtab stuff that needs checking. */
658 /* Note (RT): The following never-executed code looks unnecessary to me also.
659 * If we change the code to use the original (passed-in)
660 * value of 'block', we could cause it to execute, but then what
661 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
662 * 'block' was already searched by the above code. And the STATIC_BLOCK's
663 * of *other* symtabs (those files not containing 'block' lexically)
664 * should not contain 'block' address-wise. So we wouldn't expect this
665 * code to find any 'sym''s that were not found above. I vote for
666 * deleting the following paragraph of code.
668 if (namespace == VAR_NAMESPACE && block != NULL)
671 /* Find the right symtab. */
672 ALL_SYMTABS (objfile, s)
674 bv = BLOCKVECTOR (s);
675 b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
676 if (BLOCK_START (b) <= BLOCK_START (block)
677 && BLOCK_END (b) > BLOCK_START (block))
679 sym = lookup_block_symbol (b, name, VAR_NAMESPACE);
685 return fixup_symbol_section (sym, objfile);
692 /* C++: If requested to do so by the caller,
693 check to see if NAME is a field of `this'. */
694 if (is_a_field_of_this)
696 struct value *v = value_of_this (0);
698 *is_a_field_of_this = 0;
699 if (v && check_field (v, name))
701 *is_a_field_of_this = 1;
708 /* Now search all global blocks. Do the symtab's first, then
709 check the psymtab's. If a psymtab indicates the existence
710 of the desired name as a global, then do psymtab-to-symtab
711 conversion on the fly and return the found symbol. */
713 ALL_SYMTABS (objfile, s)
715 bv = BLOCKVECTOR (s);
716 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
717 sym = lookup_block_symbol (block, name, namespace);
723 return fixup_symbol_section (sym, objfile);
729 /* Check for the possibility of the symbol being a function or
730 a mangled variable that is stored in one of the minimal symbol tables.
731 Eventually, all global symbols might be resolved in this way. */
733 if (namespace == VAR_NAMESPACE)
735 msymbol = lookup_minimal_symbol (name, NULL, NULL);
738 s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol),
739 SYMBOL_BFD_SECTION (msymbol));
742 /* This is a function which has a symtab for its address. */
743 bv = BLOCKVECTOR (s);
744 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
745 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
747 /* We kept static functions in minimal symbol table as well as
748 in static scope. We want to find them in the symbol table. */
751 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
752 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
756 /* sym == 0 if symbol was found in the minimal symbol table
757 but not in the symtab.
758 Return 0 to use the msymbol definition of "foo_".
760 This happens for Fortran "foo_" symbols,
761 which are "foo" in the symtab.
763 This can also happen if "asm" is used to make a
764 regular symbol but not a debugging symbol, e.g.
771 return fixup_symbol_section (sym, objfile);
773 else if (MSYMBOL_TYPE (msymbol) != mst_text
774 && MSYMBOL_TYPE (msymbol) != mst_file_text
775 && !STREQ (name, SYMBOL_NAME (msymbol)))
777 /* This is a mangled variable, look it up by its
779 return lookup_symbol (SYMBOL_NAME (msymbol), block,
780 namespace, is_a_field_of_this, symtab);
782 /* There are no debug symbols for this file, or we are looking
783 for an unmangled variable.
784 Try to find a matching static symbol below. */
790 ALL_PSYMTABS (objfile, ps)
792 if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace))
794 s = PSYMTAB_TO_SYMTAB (ps);
795 bv = BLOCKVECTOR (s);
796 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
797 sym = lookup_block_symbol (block, name, namespace);
800 /* This shouldn't be necessary, but as a last resort
801 * try looking in the statics even though the psymtab
802 * claimed the symbol was global. It's possible that
803 * the psymtab gets it wrong in some cases.
805 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
806 sym = lookup_block_symbol (block, name, namespace);
808 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
809 %s may be an inlined function, or may be a template function\n\
810 (if a template, try specifying an instantiation: %s<type>).",
811 name, ps->filename, name, name);
815 return fixup_symbol_section (sym, objfile);
819 /* Now search all static file-level symbols.
820 Not strictly correct, but more useful than an error.
821 Do the symtabs first, then check the psymtabs.
822 If a psymtab indicates the existence
823 of the desired name as a file-level static, then do psymtab-to-symtab
824 conversion on the fly and return the found symbol. */
826 ALL_SYMTABS (objfile, s)
828 bv = BLOCKVECTOR (s);
829 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
830 sym = lookup_block_symbol (block, name, namespace);
836 return fixup_symbol_section (sym, objfile);
840 ALL_PSYMTABS (objfile, ps)
842 if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace))
844 s = PSYMTAB_TO_SYMTAB (ps);
845 bv = BLOCKVECTOR (s);
846 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
847 sym = lookup_block_symbol (block, name, namespace);
850 /* This shouldn't be necessary, but as a last resort
851 * try looking in the globals even though the psymtab
852 * claimed the symbol was static. It's possible that
853 * the psymtab gets it wrong in some cases.
855 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
856 sym = lookup_block_symbol (block, name, namespace);
858 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
859 %s may be an inlined function, or may be a template function\n\
860 (if a template, try specifying an instantiation: %s<type>).",
861 name, ps->filename, name, name);
865 return fixup_symbol_section (sym, objfile);
871 /* Check for the possibility of the symbol being a function or
872 a global variable that is stored in one of the minimal symbol tables.
873 The "minimal symbol table" is built from linker-supplied info.
875 RT: I moved this check to last, after the complete search of
876 the global (p)symtab's and static (p)symtab's. For HP-generated
877 symbol tables, this check was causing a premature exit from
878 lookup_symbol with NULL return, and thus messing up symbol lookups
879 of things like "c::f". It seems to me a check of the minimal
880 symbol table ought to be a last resort in any case. I'm vaguely
881 worried about the comment below which talks about FORTRAN routines "foo_"
882 though... is it saying we need to do the "minsym" check before
883 the static check in this case?
886 if (namespace == VAR_NAMESPACE)
888 msymbol = lookup_minimal_symbol (name, NULL, NULL);
891 /* OK, we found a minimal symbol in spite of not
892 * finding any symbol. There are various possible
893 * explanations for this. One possibility is the symbol
894 * exists in code not compiled -g. Another possibility
895 * is that the 'psymtab' isn't doing its job.
896 * A third possibility, related to #2, is that we were confused
897 * by name-mangling. For instance, maybe the psymtab isn't
898 * doing its job because it only know about demangled
899 * names, but we were given a mangled name...
902 /* We first use the address in the msymbol to try to
903 * locate the appropriate symtab. Note that find_pc_symtab()
904 * has a side-effect of doing psymtab-to-symtab expansion,
905 * for the found symtab.
907 s = find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol));
910 bv = BLOCKVECTOR (s);
911 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
912 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
914 /* We kept static functions in minimal symbol table as well as
915 in static scope. We want to find them in the symbol table. */
918 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
919 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
922 /* If we found one, return it */
930 /* If we get here with sym == 0, the symbol was
931 found in the minimal symbol table
932 but not in the symtab.
933 Fall through and return 0 to use the msymbol
934 definition of "foo_".
935 (Note that outer code generally follows up a call
936 to this routine with a call to lookup_minimal_symbol(),
937 so a 0 return means we'll just flow into that other routine).
939 This happens for Fortran "foo_" symbols,
940 which are "foo" in the symtab.
942 This can also happen if "asm" is used to make a
943 regular symbol but not a debugging symbol, e.g.
949 /* If the lookup-by-address fails, try repeating the
950 * entire lookup process with the symbol name from
951 * the msymbol (if different from the original symbol name).
953 else if (MSYMBOL_TYPE (msymbol) != mst_text
954 && MSYMBOL_TYPE (msymbol) != mst_file_text
955 && !STREQ (name, SYMBOL_NAME (msymbol)))
957 return lookup_symbol (SYMBOL_NAME (msymbol), block,
958 namespace, is_a_field_of_this, symtab);
970 /* Look, in partial_symtab PST, for symbol NAME. Check the global
971 symbols if GLOBAL, the static symbols if not */
973 static struct partial_symbol *
974 lookup_partial_symbol (pst, name, global, namespace)
975 struct partial_symtab *pst;
978 namespace_enum namespace;
980 struct partial_symbol **start, **psym;
981 struct partial_symbol **top, **bottom, **center;
982 int length = (global ? pst->n_global_syms : pst->n_static_syms);
983 int do_linear_search = 1;
991 pst->objfile->global_psymbols.list + pst->globals_offset :
992 pst->objfile->static_psymbols.list + pst->statics_offset);
994 if (global) /* This means we can use a binary search. */
996 do_linear_search = 0;
998 /* Binary search. This search is guaranteed to end with center
999 pointing at the earliest partial symbol with the correct
1000 name. At that point *all* partial symbols with that name
1001 will be checked against the correct namespace. */
1004 top = start + length - 1;
1005 while (top > bottom)
1007 center = bottom + (top - bottom) / 2;
1008 if (!(center < top))
1010 if (!do_linear_search
1011 && (SYMBOL_LANGUAGE (*center) == language_cplus
1012 || SYMBOL_LANGUAGE (*center) == language_java
1015 do_linear_search = 1;
1017 if (STRCMP (SYMBOL_NAME (*center), name) >= 0)
1023 bottom = center + 1;
1026 if (!(top == bottom))
1028 while (STREQ (SYMBOL_NAME (*top), name))
1030 if (SYMBOL_NAMESPACE (*top) == namespace)
1038 /* Can't use a binary search or else we found during the binary search that
1039 we should also do a linear search. */
1041 if (do_linear_search)
1043 for (psym = start; psym < start + length; psym++)
1045 if (namespace == SYMBOL_NAMESPACE (*psym))
1047 if (SYMBOL_MATCHES_NAME (*psym, name))
1058 /* Look up a type named NAME in the struct_namespace. The type returned
1059 must not be opaque -- i.e., must have at least one field defined
1061 This code was modelled on lookup_symbol -- the parts not relevant to looking
1062 up types were just left out. In particular it's assumed here that types
1063 are available in struct_namespace and only at file-static or global blocks. */
1067 lookup_transparent_type (name)
1070 register struct symbol *sym;
1071 register struct symtab *s = NULL;
1072 register struct partial_symtab *ps;
1073 struct blockvector *bv;
1074 register struct objfile *objfile;
1075 register struct block *block;
1076 register struct minimal_symbol *msymbol;
1078 /* Now search all the global symbols. Do the symtab's first, then
1079 check the psymtab's. If a psymtab indicates the existence
1080 of the desired name as a global, then do psymtab-to-symtab
1081 conversion on the fly and return the found symbol. */
1083 ALL_SYMTABS (objfile, s)
1085 bv = BLOCKVECTOR (s);
1086 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1087 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1088 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1090 return SYMBOL_TYPE (sym);
1094 ALL_PSYMTABS (objfile, ps)
1096 if (!ps->readin && lookup_partial_symbol (ps, name, 1, STRUCT_NAMESPACE))
1098 s = PSYMTAB_TO_SYMTAB (ps);
1099 bv = BLOCKVECTOR (s);
1100 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1101 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1104 /* This shouldn't be necessary, but as a last resort
1105 * try looking in the statics even though the psymtab
1106 * claimed the symbol was global. It's possible that
1107 * the psymtab gets it wrong in some cases.
1109 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1110 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1112 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
1113 %s may be an inlined function, or may be a template function\n\
1114 (if a template, try specifying an instantiation: %s<type>).",
1115 name, ps->filename, name, name);
1117 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1118 return SYMBOL_TYPE (sym);
1122 /* Now search the static file-level symbols.
1123 Not strictly correct, but more useful than an error.
1124 Do the symtab's first, then
1125 check the psymtab's. If a psymtab indicates the existence
1126 of the desired name as a file-level static, then do psymtab-to-symtab
1127 conversion on the fly and return the found symbol.
1130 ALL_SYMTABS (objfile, s)
1132 bv = BLOCKVECTOR (s);
1133 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1134 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1135 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1137 return SYMBOL_TYPE (sym);
1141 ALL_PSYMTABS (objfile, ps)
1143 if (!ps->readin && lookup_partial_symbol (ps, name, 0, STRUCT_NAMESPACE))
1145 s = PSYMTAB_TO_SYMTAB (ps);
1146 bv = BLOCKVECTOR (s);
1147 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1148 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1151 /* This shouldn't be necessary, but as a last resort
1152 * try looking in the globals even though the psymtab
1153 * claimed the symbol was static. It's possible that
1154 * the psymtab gets it wrong in some cases.
1156 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1157 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1159 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
1160 %s may be an inlined function, or may be a template function\n\
1161 (if a template, try specifying an instantiation: %s<type>).",
1162 name, ps->filename, name, name);
1164 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1165 return SYMBOL_TYPE (sym);
1168 return (struct type *) 0;
1172 /* Find the psymtab containing main(). */
1173 /* FIXME: What about languages without main() or specially linked
1174 executables that have no main() ? */
1176 struct partial_symtab *
1177 find_main_psymtab ()
1179 register struct partial_symtab *pst;
1180 register struct objfile *objfile;
1182 ALL_PSYMTABS (objfile, pst)
1184 if (lookup_partial_symbol (pst, "main", 1, VAR_NAMESPACE))
1192 /* Search BLOCK for symbol NAME in NAMESPACE.
1194 Note that if NAME is the demangled form of a C++ symbol, we will fail
1195 to find a match during the binary search of the non-encoded names, but
1196 for now we don't worry about the slight inefficiency of looking for
1197 a match we'll never find, since it will go pretty quick. Once the
1198 binary search terminates, we drop through and do a straight linear
1199 search on the symbols. Each symbol which is marked as being a C++
1200 symbol (language_cplus set) has both the encoded and non-encoded names
1201 tested for a match. */
1204 lookup_block_symbol (block, name, namespace)
1205 register const struct block *block;
1207 const namespace_enum namespace;
1209 register int bot, top, inc;
1210 register struct symbol *sym;
1211 register struct symbol *sym_found = NULL;
1212 register int do_linear_search = 1;
1214 /* If the blocks's symbols were sorted, start with a binary search. */
1216 if (BLOCK_SHOULD_SORT (block))
1218 /* Reset the linear search flag so if the binary search fails, we
1219 won't do the linear search once unless we find some reason to
1220 do so, such as finding a C++ symbol during the binary search.
1221 Note that for C++ modules, ALL the symbols in a block should
1222 end up marked as C++ symbols. */
1224 do_linear_search = 0;
1225 top = BLOCK_NSYMS (block);
1228 /* Advance BOT to not far before the first symbol whose name is NAME. */
1232 inc = (top - bot + 1);
1233 /* No need to keep binary searching for the last few bits worth. */
1238 inc = (inc >> 1) + bot;
1239 sym = BLOCK_SYM (block, inc);
1240 if (!do_linear_search
1241 && (SYMBOL_LANGUAGE (sym) == language_cplus
1242 || SYMBOL_LANGUAGE (sym) == language_java
1245 do_linear_search = 1;
1247 if (SYMBOL_NAME (sym)[0] < name[0])
1251 else if (SYMBOL_NAME (sym)[0] > name[0])
1255 else if (STRCMP (SYMBOL_NAME (sym), name) < 0)
1265 /* Now scan forward until we run out of symbols, find one whose
1266 name is greater than NAME, or find one we want. If there is
1267 more than one symbol with the right name and namespace, we
1268 return the first one; I believe it is now impossible for us
1269 to encounter two symbols with the same name and namespace
1270 here, because blocks containing argument symbols are no
1273 top = BLOCK_NSYMS (block);
1276 sym = BLOCK_SYM (block, bot);
1277 inc = SYMBOL_NAME (sym)[0] - name[0];
1280 inc = STRCMP (SYMBOL_NAME (sym), name);
1282 if (inc == 0 && SYMBOL_NAMESPACE (sym) == namespace)
1294 /* Here if block isn't sorted, or we fail to find a match during the
1295 binary search above. If during the binary search above, we find a
1296 symbol which is a C++ symbol, then we have re-enabled the linear
1297 search flag which was reset when starting the binary search.
1299 This loop is equivalent to the loop above, but hacked greatly for speed.
1301 Note that parameter symbols do not always show up last in the
1302 list; this loop makes sure to take anything else other than
1303 parameter symbols first; it only uses parameter symbols as a
1304 last resort. Note that this only takes up extra computation
1307 if (do_linear_search)
1309 top = BLOCK_NSYMS (block);
1313 sym = BLOCK_SYM (block, bot);
1314 if (SYMBOL_NAMESPACE (sym) == namespace &&
1315 SYMBOL_MATCHES_NAME (sym, name))
1317 /* If SYM has aliases, then use any alias that is active
1318 at the current PC. If no alias is active at the current
1319 PC, then use the main symbol.
1321 ?!? Is checking the current pc correct? Is this routine
1322 ever called to look up a symbol from another context? */
1323 if (SYMBOL_ALIASES (sym))
1324 sym = find_active_alias (sym, read_pc ());
1327 if (SYMBOL_CLASS (sym) != LOC_ARG &&
1328 SYMBOL_CLASS (sym) != LOC_LOCAL_ARG &&
1329 SYMBOL_CLASS (sym) != LOC_REF_ARG &&
1330 SYMBOL_CLASS (sym) != LOC_REGPARM &&
1331 SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR &&
1332 SYMBOL_CLASS (sym) != LOC_BASEREG_ARG)
1340 return (sym_found); /* Will be NULL if not found. */
1343 /* Given a main symbol SYM and ADDR, search through the alias
1344 list to determine if an alias is active at ADDR and return
1347 If no alias is active, then return SYM. */
1349 static struct symbol *
1350 find_active_alias (sym, addr)
1354 struct range_list *r;
1355 struct alias_list *aliases;
1357 /* If we have aliases, check them first. */
1358 aliases = SYMBOL_ALIASES (sym);
1362 if (!SYMBOL_RANGES (aliases->sym))
1363 return aliases->sym;
1364 for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next)
1366 if (r->start <= addr && r->end > addr)
1367 return aliases->sym;
1369 aliases = aliases->next;
1372 /* Nothing found, return the main symbol. */
1377 /* Return the symbol for the function which contains a specified
1378 lexical block, described by a struct block BL. */
1384 while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0)
1385 bl = BLOCK_SUPERBLOCK (bl);
1387 return BLOCK_FUNCTION (bl);
1390 /* Find the symtab associated with PC and SECTION. Look through the
1391 psymtabs and read in another symtab if necessary. */
1394 find_pc_sect_symtab (pc, section)
1398 register struct block *b;
1399 struct blockvector *bv;
1400 register struct symtab *s = NULL;
1401 register struct symtab *best_s = NULL;
1402 register struct partial_symtab *ps;
1403 register struct objfile *objfile;
1404 CORE_ADDR distance = 0;
1406 /* Search all symtabs for the one whose file contains our address, and which
1407 is the smallest of all the ones containing the address. This is designed
1408 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1409 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1410 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1412 This happens for native ecoff format, where code from included files
1413 gets its own symtab. The symtab for the included file should have
1414 been read in already via the dependency mechanism.
1415 It might be swifter to create several symtabs with the same name
1416 like xcoff does (I'm not sure).
1418 It also happens for objfiles that have their functions reordered.
1419 For these, the symtab we are looking for is not necessarily read in. */
1421 ALL_SYMTABS (objfile, s)
1423 bv = BLOCKVECTOR (s);
1424 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1426 if (BLOCK_START (b) <= pc
1427 #if defined(HPUXHPPA)
1428 && BLOCK_END (b) >= pc
1430 && BLOCK_END (b) > pc
1433 || BLOCK_END (b) - BLOCK_START (b) < distance))
1435 /* For an objfile that has its functions reordered,
1436 find_pc_psymtab will find the proper partial symbol table
1437 and we simply return its corresponding symtab. */
1438 /* In order to better support objfiles that contain both
1439 stabs and coff debugging info, we continue on if a psymtab
1441 if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs)
1443 ps = find_pc_sect_psymtab (pc, section);
1445 return PSYMTAB_TO_SYMTAB (ps);
1451 for (i = 0; i < b->nsyms; i++)
1453 fixup_symbol_section (b->sym[i], objfile);
1454 if (section == SYMBOL_BFD_SECTION (b->sym[i]))
1458 continue; /* no symbol in this symtab matches section */
1460 distance = BLOCK_END (b) - BLOCK_START (b);
1469 ps = find_pc_sect_psymtab (pc, section);
1473 /* Might want to error() here (in case symtab is corrupt and
1474 will cause a core dump), but maybe we can successfully
1475 continue, so let's not. */
1476 /* FIXME-32x64: assumes pc fits in a long */
1478 (Internal error: pc 0x%lx in read in psymtab, but not in symtab.)\n",
1479 (unsigned long) pc);
1480 s = PSYMTAB_TO_SYMTAB (ps);
1485 /* Find the symtab associated with PC. Look through the psymtabs and
1486 read in another symtab if necessary. Backward compatibility, no section */
1492 return find_pc_sect_symtab (pc, find_pc_mapped_section (pc));
1498 /* Find the closest symbol value (of any sort -- function or variable)
1499 for a given address value. Slow but complete. (currently unused,
1500 mainly because it is too slow. We could fix it if each symtab and
1501 psymtab had contained in it the addresses ranges of each of its
1502 sections, which also would be required to make things like "info
1503 line *0x2345" cause psymtabs to be converted to symtabs). */
1506 find_addr_symbol (addr, symtabp, symaddrp)
1508 struct symtab **symtabp;
1509 CORE_ADDR *symaddrp;
1511 struct symtab *symtab, *best_symtab;
1512 struct objfile *objfile;
1513 register int bot, top;
1514 register struct symbol *sym;
1515 register CORE_ADDR sym_addr;
1516 struct block *block;
1519 /* Info on best symbol seen so far */
1521 register CORE_ADDR best_sym_addr = 0;
1522 struct symbol *best_sym = 0;
1524 /* FIXME -- we should pull in all the psymtabs, too! */
1525 ALL_SYMTABS (objfile, symtab)
1527 /* Search the global and static blocks in this symtab for
1528 the closest symbol-address to the desired address. */
1530 for (blocknum = GLOBAL_BLOCK; blocknum <= STATIC_BLOCK; blocknum++)
1533 block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), blocknum);
1534 top = BLOCK_NSYMS (block);
1535 for (bot = 0; bot < top; bot++)
1537 sym = BLOCK_SYM (block, bot);
1538 switch (SYMBOL_CLASS (sym))
1542 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1546 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1547 /* An indirect symbol really lives at *sym_addr,
1548 * so an indirection needs to be done.
1549 * However, I am leaving this commented out because it's
1550 * expensive, and it's possible that symbolization
1551 * could be done without an active process (in
1552 * case this read_memory will fail). RT
1553 sym_addr = read_memory_unsigned_integer
1554 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1559 sym_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
1566 if (sym_addr <= addr)
1567 if (sym_addr > best_sym_addr)
1569 /* Quit if we found an exact match. */
1571 best_sym_addr = sym_addr;
1572 best_symtab = symtab;
1573 if (sym_addr == addr)
1582 *symtabp = best_symtab;
1584 *symaddrp = best_sym_addr;
1589 /* Find the source file and line number for a given PC value and section.
1590 Return a structure containing a symtab pointer, a line number,
1591 and a pc range for the entire source line.
1592 The value's .pc field is NOT the specified pc.
1593 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1594 use the line that ends there. Otherwise, in that case, the line
1595 that begins there is used. */
1597 /* The big complication here is that a line may start in one file, and end just
1598 before the start of another file. This usually occurs when you #include
1599 code in the middle of a subroutine. To properly find the end of a line's PC
1600 range, we must search all symtabs associated with this compilation unit, and
1601 find the one whose first PC is closer than that of the next line in this
1604 /* If it's worth the effort, we could be using a binary search. */
1606 struct symtab_and_line
1607 find_pc_sect_line (pc, section, notcurrent)
1609 struct sec *section;
1613 register struct linetable *l;
1616 register struct linetable_entry *item;
1617 struct symtab_and_line val;
1618 struct blockvector *bv;
1619 struct minimal_symbol *msymbol;
1620 struct minimal_symbol *mfunsym;
1622 /* Info on best line seen so far, and where it starts, and its file. */
1624 struct linetable_entry *best = NULL;
1625 CORE_ADDR best_end = 0;
1626 struct symtab *best_symtab = 0;
1628 /* Store here the first line number
1629 of a file which contains the line at the smallest pc after PC.
1630 If we don't find a line whose range contains PC,
1631 we will use a line one less than this,
1632 with a range from the start of that file to the first line's pc. */
1633 struct linetable_entry *alt = NULL;
1634 struct symtab *alt_symtab = 0;
1636 /* Info on best line seen in this file. */
1638 struct linetable_entry *prev;
1640 /* If this pc is not from the current frame,
1641 it is the address of the end of a call instruction.
1642 Quite likely that is the start of the following statement.
1643 But what we want is the statement containing the instruction.
1644 Fudge the pc to make sure we get that. */
1646 INIT_SAL (&val); /* initialize to zeroes */
1651 /* elz: added this because this function returned the wrong
1652 information if the pc belongs to a stub (import/export)
1653 to call a shlib function. This stub would be anywhere between
1654 two functions in the target, and the line info was erroneously
1655 taken to be the one of the line before the pc.
1657 /* RT: Further explanation:
1659 * We have stubs (trampolines) inserted between procedures.
1661 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1662 * exists in the main image.
1664 * In the minimal symbol table, we have a bunch of symbols
1665 * sorted by start address. The stubs are marked as "trampoline",
1666 * the others appear as text. E.g.:
1668 * Minimal symbol table for main image
1669 * main: code for main (text symbol)
1670 * shr1: stub (trampoline symbol)
1671 * foo: code for foo (text symbol)
1673 * Minimal symbol table for "shr1" image:
1675 * shr1: code for shr1 (text symbol)
1678 * So the code below is trying to detect if we are in the stub
1679 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1680 * and if found, do the symbolization from the real-code address
1681 * rather than the stub address.
1683 * Assumptions being made about the minimal symbol table:
1684 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1685 * if we're really in the trampoline. If we're beyond it (say
1686 * we're in "foo" in the above example), it'll have a closer
1687 * symbol (the "foo" text symbol for example) and will not
1688 * return the trampoline.
1689 * 2. lookup_minimal_symbol_text() will find a real text symbol
1690 * corresponding to the trampoline, and whose address will
1691 * be different than the trampoline address. I put in a sanity
1692 * check for the address being the same, to avoid an
1693 * infinite recursion.
1695 msymbol = lookup_minimal_symbol_by_pc (pc);
1696 if (msymbol != NULL)
1697 if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline)
1699 mfunsym = lookup_minimal_symbol_text (SYMBOL_NAME (msymbol), NULL, NULL);
1700 if (mfunsym == NULL)
1701 /* I eliminated this warning since it is coming out
1702 * in the following situation:
1703 * gdb shmain // test program with shared libraries
1704 * (gdb) break shr1 // function in shared lib
1705 * Warning: In stub for ...
1706 * In the above situation, the shared lib is not loaded yet,
1707 * so of course we can't find the real func/line info,
1708 * but the "break" still works, and the warning is annoying.
1709 * So I commented out the warning. RT */
1710 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1712 else if (SYMBOL_VALUE (mfunsym) == SYMBOL_VALUE (msymbol))
1713 /* Avoid infinite recursion */
1714 /* See above comment about why warning is commented out */
1715 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1718 return find_pc_line (SYMBOL_VALUE (mfunsym), 0);
1722 s = find_pc_sect_symtab (pc, section);
1725 /* if no symbol information, return previous pc */
1732 bv = BLOCKVECTOR (s);
1734 /* Look at all the symtabs that share this blockvector.
1735 They all have the same apriori range, that we found was right;
1736 but they have different line tables. */
1738 for (; s && BLOCKVECTOR (s) == bv; s = s->next)
1740 /* Find the best line in this symtab. */
1747 /* I think len can be zero if the symtab lacks line numbers
1748 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1749 I'm not sure which, and maybe it depends on the symbol
1755 item = l->item; /* Get first line info */
1757 /* Is this file's first line closer than the first lines of other files?
1758 If so, record this file, and its first line, as best alternate. */
1759 if (item->pc > pc && (!alt || item->pc < alt->pc))
1765 for (i = 0; i < len; i++, item++)
1767 /* Leave prev pointing to the linetable entry for the last line
1768 that started at or before PC. */
1775 /* At this point, prev points at the line whose start addr is <= pc, and
1776 item points at the next line. If we ran off the end of the linetable
1777 (pc >= start of the last line), then prev == item. If pc < start of
1778 the first line, prev will not be set. */
1780 /* Is this file's best line closer than the best in the other files?
1781 If so, record this file, and its best line, as best so far. */
1783 if (prev && (!best || prev->pc > best->pc))
1787 /* If another line is in the linetable, and its PC is closer
1788 than the best_end we currently have, take it as best_end. */
1789 if (i < len && (best_end == 0 || best_end > item->pc))
1790 best_end = item->pc;
1797 { /* If we didn't find any line # info, just
1803 val.symtab = alt_symtab;
1804 val.line = alt->line - 1;
1806 /* Don't return line 0, that means that we didn't find the line. */
1810 val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1816 val.symtab = best_symtab;
1817 val.line = best->line;
1819 if (best_end && (!alt || best_end < alt->pc))
1824 val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1826 val.section = section;
1830 /* Backward compatibility (no section) */
1832 struct symtab_and_line
1833 find_pc_line (pc, notcurrent)
1839 section = find_pc_overlay (pc);
1840 if (pc_in_unmapped_range (pc, section))
1841 pc = overlay_mapped_address (pc, section);
1842 return find_pc_sect_line (pc, section, notcurrent);
1846 static struct symtab *find_line_symtab PARAMS ((struct symtab *, int,
1849 /* Find line number LINE in any symtab whose name is the same as
1852 If found, return the symtab that contains the linetable in which it was
1853 found, set *INDEX to the index in the linetable of the best entry
1854 found, and set *EXACT_MATCH nonzero if the value returned is an
1857 If not found, return NULL. */
1859 static struct symtab *
1860 find_line_symtab (symtab, line, index, exact_match)
1861 struct symtab *symtab;
1868 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1872 struct linetable *best_linetable;
1873 struct symtab *best_symtab;
1875 /* First try looking it up in the given symtab. */
1876 best_linetable = LINETABLE (symtab);
1877 best_symtab = symtab;
1878 best_index = find_line_common (best_linetable, line, &exact);
1879 if (best_index < 0 || !exact)
1881 /* Didn't find an exact match. So we better keep looking for
1882 another symtab with the same name. In the case of xcoff,
1883 multiple csects for one source file (produced by IBM's FORTRAN
1884 compiler) produce multiple symtabs (this is unavoidable
1885 assuming csects can be at arbitrary places in memory and that
1886 the GLOBAL_BLOCK of a symtab has a begin and end address). */
1888 /* BEST is the smallest linenumber > LINE so far seen,
1889 or 0 if none has been seen so far.
1890 BEST_INDEX and BEST_LINETABLE identify the item for it. */
1893 struct objfile *objfile;
1896 if (best_index >= 0)
1897 best = best_linetable->item[best_index].line;
1901 ALL_SYMTABS (objfile, s)
1903 struct linetable *l;
1906 if (!STREQ (symtab->filename, s->filename))
1909 ind = find_line_common (l, line, &exact);
1919 if (best == 0 || l->item[ind].line < best)
1921 best = l->item[ind].line;
1934 *index = best_index;
1936 *exact_match = exact;
1941 /* Set the PC value for a given source file and line number and return true.
1942 Returns zero for invalid line number (and sets the PC to 0).
1943 The source file is specified with a struct symtab. */
1946 find_line_pc (symtab, line, pc)
1947 struct symtab *symtab;
1951 struct linetable *l;
1958 symtab = find_line_symtab (symtab, line, &ind, NULL);
1961 l = LINETABLE (symtab);
1962 *pc = l->item[ind].pc;
1969 /* Find the range of pc values in a line.
1970 Store the starting pc of the line into *STARTPTR
1971 and the ending pc (start of next line) into *ENDPTR.
1972 Returns 1 to indicate success.
1973 Returns 0 if could not find the specified line. */
1976 find_line_pc_range (sal, startptr, endptr)
1977 struct symtab_and_line sal;
1978 CORE_ADDR *startptr, *endptr;
1980 CORE_ADDR startaddr;
1981 struct symtab_and_line found_sal;
1984 if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr))
1987 /* This whole function is based on address. For example, if line 10 has
1988 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
1989 "info line *0x123" should say the line goes from 0x100 to 0x200
1990 and "info line *0x355" should say the line goes from 0x300 to 0x400.
1991 This also insures that we never give a range like "starts at 0x134
1992 and ends at 0x12c". */
1994 found_sal = find_pc_sect_line (startaddr, sal.section, 0);
1995 if (found_sal.line != sal.line)
1997 /* The specified line (sal) has zero bytes. */
1998 *startptr = found_sal.pc;
1999 *endptr = found_sal.pc;
2003 *startptr = found_sal.pc;
2004 *endptr = found_sal.end;
2009 /* Given a line table and a line number, return the index into the line
2010 table for the pc of the nearest line whose number is >= the specified one.
2011 Return -1 if none is found. The value is >= 0 if it is an index.
2013 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
2016 find_line_common (l, lineno, exact_match)
2017 register struct linetable *l;
2018 register int lineno;
2024 /* BEST is the smallest linenumber > LINENO so far seen,
2025 or 0 if none has been seen so far.
2026 BEST_INDEX identifies the item for it. */
2028 int best_index = -1;
2037 for (i = 0; i < len; i++)
2039 register struct linetable_entry *item = &(l->item[i]);
2041 if (item->line == lineno)
2043 /* Return the first (lowest address) entry which matches. */
2048 if (item->line > lineno && (best == 0 || item->line < best))
2055 /* If we got here, we didn't get an exact match. */
2062 find_pc_line_pc_range (pc, startptr, endptr)
2064 CORE_ADDR *startptr, *endptr;
2066 struct symtab_and_line sal;
2067 sal = find_pc_line (pc, 0);
2070 return sal.symtab != 0;
2073 /* Given a function symbol SYM, find the symtab and line for the start
2075 If the argument FUNFIRSTLINE is nonzero, we want the first line
2076 of real code inside the function. */
2078 static struct symtab_and_line
2079 find_function_start_sal PARAMS ((struct symbol * sym, int));
2081 static struct symtab_and_line
2082 find_function_start_sal (sym, funfirstline)
2087 struct symtab_and_line sal;
2089 pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
2090 fixup_symbol_section (sym, NULL);
2092 { /* skip "first line" of function (which is actually its prologue) */
2093 asection *section = SYMBOL_BFD_SECTION (sym);
2094 /* If function is in an unmapped overlay, use its unmapped LMA
2095 address, so that SKIP_PROLOGUE has something unique to work on */
2096 if (section_is_overlay (section) &&
2097 !section_is_mapped (section))
2098 pc = overlay_unmapped_address (pc, section);
2100 pc += FUNCTION_START_OFFSET;
2101 pc = SKIP_PROLOGUE (pc);
2103 /* For overlays, map pc back into its mapped VMA range */
2104 pc = overlay_mapped_address (pc, section);
2106 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2108 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2109 /* Convex: no need to suppress code on first line, if any */
2112 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2113 line is still part of the same function. */
2115 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end
2116 && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym)))
2118 /* First pc of next line */
2120 /* Recalculate the line number (might not be N+1). */
2121 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2129 /* If P is of the form "operator[ \t]+..." where `...' is
2130 some legitimate operator text, return a pointer to the
2131 beginning of the substring of the operator text.
2132 Otherwise, return "". */
2134 operator_chars (p, end)
2139 if (strncmp (p, "operator", 8))
2143 /* Don't get faked out by `operator' being part of a longer
2145 if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0')
2148 /* Allow some whitespace between `operator' and the operator symbol. */
2149 while (*p == ' ' || *p == '\t')
2152 /* Recognize 'operator TYPENAME'. */
2154 if (isalpha (*p) || *p == '_' || *p == '$')
2156 register char *q = p + 1;
2157 while (isalnum (*q) || *q == '_' || *q == '$')
2182 if (p[1] == '=' || p[1] == p[0])
2193 error ("`operator ()' must be specified without whitespace in `()'");
2198 error ("`operator ?:' must be specified without whitespace in `?:'");
2203 error ("`operator []' must be specified without whitespace in `[]'");
2207 error ("`operator %s' not supported", p);
2214 /* Return the number of methods described for TYPE, including the
2215 methods from types it derives from. This can't be done in the symbol
2216 reader because the type of the baseclass might still be stubbed
2217 when the definition of the derived class is parsed. */
2219 static int total_number_of_methods PARAMS ((struct type * type));
2222 total_number_of_methods (type)
2228 CHECK_TYPEDEF (type);
2229 if (TYPE_CPLUS_SPECIFIC (type) == NULL)
2231 count = TYPE_NFN_FIELDS_TOTAL (type);
2233 for (n = 0; n < TYPE_N_BASECLASSES (type); n++)
2234 count += total_number_of_methods (TYPE_BASECLASS (type, n));
2239 /* Recursive helper function for decode_line_1.
2240 Look for methods named NAME in type T.
2241 Return number of matches.
2242 Put matches in SYM_ARR, which should have been allocated with
2243 a size of total_number_of_methods (T) * sizeof (struct symbol *).
2244 Note that this function is g++ specific. */
2247 find_methods (t, name, sym_arr)
2250 struct symbol **sym_arr;
2254 struct symbol *sym_class;
2255 char *class_name = type_name_no_tag (t);
2257 /* Ignore this class if it doesn't have a name. This is ugly, but
2258 unless we figure out how to get the physname without the name of
2259 the class, then the loop can't do any good. */
2261 && (sym_class = lookup_symbol (class_name,
2262 (struct block *) NULL,
2265 (struct symtab **) NULL)))
2269 /* FIXME: Shouldn't this just be CHECK_TYPEDEF (t)? */
2270 t = SYMBOL_TYPE (sym_class);
2272 /* Loop over each method name. At this level, all overloads of a name
2273 are counted as a single name. There is an inner loop which loops over
2276 for (method_counter = TYPE_NFN_FIELDS (t) - 1;
2277 method_counter >= 0;
2281 char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter);
2282 char dem_opname[64];
2284 if (strncmp (method_name, "__", 2) == 0 ||
2285 strncmp (method_name, "op", 2) == 0 ||
2286 strncmp (method_name, "type", 4) == 0)
2288 if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI))
2289 method_name = dem_opname;
2290 else if (cplus_demangle_opname (method_name, dem_opname, 0))
2291 method_name = dem_opname;
2294 if (STREQ (name, method_name))
2295 /* Find all the overloaded methods with that name. */
2296 for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1;
2303 f = TYPE_FN_FIELDLIST1 (t, method_counter);
2305 if (TYPE_FN_FIELD_STUB (f, field_counter))
2309 tmp_name = gdb_mangle_name (t,
2312 phys_name = alloca (strlen (tmp_name) + 1);
2313 strcpy (phys_name, tmp_name);
2317 phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
2319 /* Destructor is handled by caller, dont add it to the list */
2320 if (DESTRUCTOR_PREFIX_P (phys_name))
2323 sym_arr[i1] = lookup_symbol (phys_name,
2324 NULL, VAR_NAMESPACE,
2326 (struct symtab **) NULL);
2331 /* This error message gets printed, but the method
2332 still seems to be found
2333 fputs_filtered("(Cannot find method ", gdb_stdout);
2334 fprintf_symbol_filtered (gdb_stdout, phys_name,
2336 DMGL_PARAMS | DMGL_ANSI);
2337 fputs_filtered(" - possibly inlined.)\n", gdb_stdout);
2344 /* Only search baseclasses if there is no match yet, since names in
2345 derived classes override those in baseclasses.
2347 FIXME: The above is not true; it is only true of member functions
2348 if they have the same number of arguments (??? - section 13.1 of the
2349 ARM says the function members are not in the same scope but doesn't
2350 really spell out the rules in a way I understand. In any case, if
2351 the number of arguments differ this is a case in which we can overload
2352 rather than hiding without any problem, and gcc 2.4.5 does overload
2353 rather than hiding in this case). */
2356 for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++)
2357 i1 += find_methods (TYPE_BASECLASS (t, ibase), name, sym_arr + i1);
2362 /* Helper function for decode_line_1.
2363 Build a canonical line spec in CANONICAL if it is non-NULL and if
2364 the SAL has a symtab.
2365 If SYMNAME is non-NULL the canonical line spec is `filename:symname'.
2366 If SYMNAME is NULL the line number from SAL is used and the canonical
2367 line spec is `filename:linenum'. */
2370 build_canonical_line_spec (sal, symname, canonical)
2371 struct symtab_and_line *sal;
2375 char **canonical_arr;
2376 char *canonical_name;
2378 struct symtab *s = sal->symtab;
2380 if (s == (struct symtab *) NULL
2381 || s->filename == (char *) NULL
2382 || canonical == (char ***) NULL)
2385 canonical_arr = (char **) xmalloc (sizeof (char *));
2386 *canonical = canonical_arr;
2388 filename = s->filename;
2389 if (symname != NULL)
2391 canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2);
2392 sprintf (canonical_name, "%s:%s", filename, symname);
2396 canonical_name = xmalloc (strlen (filename) + 30);
2397 sprintf (canonical_name, "%s:%d", filename, sal->line);
2399 canonical_arr[0] = canonical_name;
2402 /* Parse a string that specifies a line number.
2403 Pass the address of a char * variable; that variable will be
2404 advanced over the characters actually parsed.
2408 LINENUM -- that line number in current file. PC returned is 0.
2409 FILE:LINENUM -- that line in that file. PC returned is 0.
2410 FUNCTION -- line number of openbrace of that function.
2411 PC returned is the start of the function.
2412 VARIABLE -- line number of definition of that variable.
2414 FILE:FUNCTION -- likewise, but prefer functions in that file.
2415 *EXPR -- line in which address EXPR appears.
2417 This may all be followed by an "if EXPR", which we ignore.
2419 FUNCTION may be an undebuggable function found in minimal symbol table.
2421 If the argument FUNFIRSTLINE is nonzero, we want the first line
2422 of real code inside a function when a function is specified, and it is
2423 not OK to specify a variable or type to get its line number.
2425 DEFAULT_SYMTAB specifies the file to use if none is specified.
2426 It defaults to current_source_symtab.
2427 DEFAULT_LINE specifies the line number to use for relative
2428 line numbers (that start with signs). Defaults to current_source_line.
2429 If CANONICAL is non-NULL, store an array of strings containing the canonical
2430 line specs there if necessary. Currently overloaded member functions and
2431 line numbers or static functions without a filename yield a canonical
2432 line spec. The array and the line spec strings are allocated on the heap,
2433 it is the callers responsibility to free them.
2435 Note that it is possible to return zero for the symtab
2436 if no file is validly specified. Callers must check that.
2437 Also, the line number returned may be invalid. */
2439 /* We allow single quotes in various places. This is a hideous
2440 kludge, which exists because the completer can't yet deal with the
2441 lack of single quotes. FIXME: write a linespec_completer which we
2442 can use as appropriate instead of make_symbol_completion_list. */
2444 struct symtabs_and_lines
2445 decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical)
2448 struct symtab *default_symtab;
2452 struct symtabs_and_lines values;
2453 #ifdef HPPA_COMPILER_BUG
2454 /* FIXME: The native HP 9000/700 compiler has a bug which appears
2455 when optimizing this file with target i960-vxworks. I haven't
2456 been able to construct a simple test case. The problem is that
2457 in the second call to SKIP_PROLOGUE below, the compiler somehow
2458 does not realize that the statement val = find_pc_line (...) will
2459 change the values of the fields of val. It extracts the elements
2460 into registers at the top of the block, and does not update the
2461 registers after the call to find_pc_line. You can check this by
2462 inserting a printf at the end of find_pc_line to show what values
2463 it is returning for val.pc and val.end and another printf after
2464 the call to see what values the function actually got (remember,
2465 this is compiling with cc -O, with this patch removed). You can
2466 also examine the assembly listing: search for the second call to
2467 skip_prologue; the LDO statement before the next call to
2468 find_pc_line loads the address of the structure which
2469 find_pc_line will return; if there is a LDW just before the LDO,
2470 which fetches an element of the structure, then the compiler
2473 Setting val to volatile avoids the problem. We must undef
2474 volatile, because the HPPA native compiler does not define
2475 __STDC__, although it does understand volatile, and so volatile
2476 will have been defined away in defs.h. */
2478 volatile struct symtab_and_line val;
2479 #define volatile /*nothing */
2481 struct symtab_and_line val;
2483 register char *p, *p1;
2484 char *q, *pp, *ii, *p2;
2488 register struct symtab *s;
2490 register struct symbol *sym;
2491 /* The symtab that SYM was found in. */
2492 struct symtab *sym_symtab;
2494 register CORE_ADDR pc;
2495 register struct minimal_symbol *msymbol;
2497 struct symbol *sym_class;
2500 int is_quote_enclosed;
2504 struct symbol **sym_arr;
2506 char *saved_arg = *argptr;
2507 extern char *gdb_completer_quote_characters;
2509 INIT_SAL (&val); /* initialize to zeroes */
2511 /* Defaults have defaults. */
2513 if (default_symtab == 0)
2515 default_symtab = current_source_symtab;
2516 default_line = current_source_line;
2519 /* See if arg is *PC */
2521 if (**argptr == '*')
2524 pc = parse_and_eval_address_1 (argptr);
2526 values.sals = (struct symtab_and_line *)
2527 xmalloc (sizeof (struct symtab_and_line));
2530 values.sals[0] = find_pc_line (pc, 0);
2531 values.sals[0].pc = pc;
2532 values.sals[0].section = find_pc_overlay (pc);
2537 /* 'has_if' is for the syntax:
2538 * (gdb) break foo if (a==b)
2540 if ((ii = strstr (*argptr, " if ")) != NULL ||
2541 (ii = strstr (*argptr, "\tif ")) != NULL ||
2542 (ii = strstr (*argptr, " if\t")) != NULL ||
2543 (ii = strstr (*argptr, "\tif\t")) != NULL ||
2544 (ii = strstr (*argptr, " if(")) != NULL ||
2545 (ii = strstr (*argptr, "\tif( ")) != NULL)
2547 /* Temporarily zap out "if (condition)" to not
2548 * confuse the parenthesis-checking code below.
2549 * This is undone below. Do not change ii!!
2556 /* Set various flags.
2557 * 'has_parens' is important for overload checking, where
2558 * we allow things like:
2559 * (gdb) break c::f(int)
2562 /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
2564 is_quoted = (**argptr
2565 && strchr (gdb_completer_quote_characters, **argptr) != NULL);
2567 has_parens = ((pp = strchr (*argptr, '(')) != NULL
2568 && (pp = strchr (pp, ')')) != NULL);
2570 /* Now that we're safely past the has_parens check,
2571 * put back " if (condition)" so outer layers can see it
2576 /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM
2577 and we must isolate the first half. Outer layers will call again later
2578 for the second half */
2579 if ((ii = strchr (*argptr, ',')) != NULL)
2581 /* Temporarily zap out second half to not
2582 * confuse the code below.
2583 * This is undone below. Do not change ii!!
2590 /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
2591 /* May also be CLASS::MEMBER, or NAMESPACE::NAME */
2592 /* Look for ':', but ignore inside of <> */
2598 is_quote_enclosed = 1;
2602 is_quote_enclosed = 0;
2607 char *temp_end = find_template_name_end (p);
2609 error ("malformed template specification in command");
2612 /* Check for the end of the first half of the linespec. End of line,
2613 a tab, a double colon or the last single colon, or a space. But
2614 if enclosed in double quotes we do not break on enclosed spaces */
2618 && ((p[1] == ':') || (strchr (p + 1, ':') == NULL)))
2619 || ((p[0] == ' ') && !is_quote_enclosed))
2621 if (p[0] == '.' && strchr (p, ':') == NULL) /* Java qualified method. */
2623 /* Find the *last* '.', since the others are package qualifiers. */
2624 for (p1 = p; *p1; p1++)
2632 while (p[0] == ' ' || p[0] == '\t')
2634 /* if the closing double quote was left at the end, remove it */
2635 if (is_quote_enclosed && ((pp = strchr (p, '"')) != NULL))
2639 /* Now that we've safely parsed the first half,
2640 * put back ',' so outer layers can see it
2645 if ((p[0] == ':' || p[0] == '.') && !has_parens)
2650 *argptr = *argptr + 1;
2651 if (p[0] == '.' || p[1] == ':')
2654 char *saved_arg2 = *argptr;
2656 /* First check for "global" namespace specification,
2657 of the form "::foo". If found, skip over the colons
2658 and jump to normal symbol processing */
2659 if ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))
2662 /* We have what looks like a class or namespace
2663 scope specification (A::B), possibly with many
2664 levels of namespaces or classes (A::B::C::D).
2666 Some versions of the HP ANSI C++ compiler (as also possibly
2667 other compilers) generate class/function/member names with
2668 embedded double-colons if they are inside namespaces. To
2669 handle this, we loop a few times, considering larger and
2670 larger prefixes of the string as though they were single
2671 symbols. So, if the initially supplied string is
2672 A::B::C::D::foo, we have to look up "A", then "A::B",
2673 then "A::B::C", then "A::B::C::D", and finally
2674 "A::B::C::D::foo" as single, monolithic symbols, because
2675 A, B, C or D may be namespaces.
2677 Note that namespaces can nest only inside other
2678 namespaces, and not inside classes. So we need only
2679 consider *prefixes* of the string; there is no need to look up
2680 "B::C" separately as a symbol in the previous example. */
2682 p2 = p; /* save for restart */
2685 /* Extract the class name. */
2687 while (p != *argptr && p[-1] == ' ')
2689 copy = (char *) alloca (p - *argptr + 1);
2690 memcpy (copy, *argptr, p - *argptr);
2691 copy[p - *argptr] = 0;
2693 /* Discard the class name from the arg. */
2694 p = p1 + (p1[0] == ':' ? 2 : 1);
2695 while (*p == ' ' || *p == '\t')
2699 sym_class = lookup_symbol (copy, 0, STRUCT_NAMESPACE, 0,
2700 (struct symtab **) NULL);
2703 (t = check_typedef (SYMBOL_TYPE (sym_class)),
2704 (TYPE_CODE (t) == TYPE_CODE_STRUCT
2705 || TYPE_CODE (t) == TYPE_CODE_UNION)))
2707 /* Arg token is not digits => try it as a function name
2708 Find the next token(everything up to end or next blank). */
2710 && strchr (gdb_completer_quote_characters, **argptr) != NULL)
2712 p = skip_quoted (*argptr);
2713 *argptr = *argptr + 1;
2718 while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':')
2722 q = operator_chars (*argptr, &q1);
2726 char *tmp = alloca (q1 - q + 1);
2727 memcpy (tmp, q, q1 - q);
2729 opname = cplus_mangle_opname (tmp, DMGL_ANSI);
2733 printf_filtered ("no mangling for \"%s\"\n", tmp);
2734 cplusplus_hint (saved_arg);
2735 return_to_top_level (RETURN_ERROR);
2737 copy = (char*) alloca (3 + strlen(opname));
2738 sprintf (copy, "__%s", opname);
2744 copy = (char *) alloca (p - *argptr + 1);
2745 memcpy (copy, *argptr, p - *argptr);
2746 copy[p - *argptr] = '\0';
2748 && copy[p - *argptr - 1]
2749 && strchr (gdb_completer_quote_characters,
2750 copy[p - *argptr - 1]) != NULL)
2751 copy[p - *argptr - 1] = '\0';
2754 /* no line number may be specified */
2755 while (*p == ' ' || *p == '\t')
2760 i1 = 0; /* counter for the symbol array */
2761 sym_arr = (struct symbol **) alloca (total_number_of_methods (t)
2762 * sizeof (struct symbol *));
2764 if (destructor_name_p (copy, t))
2766 /* Destructors are a special case. */
2767 int m_index, f_index;
2769 if (get_destructor_fn_field (t, &m_index, &f_index))
2771 struct fn_field *f = TYPE_FN_FIELDLIST1 (t, m_index);
2774 lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, f_index),
2775 NULL, VAR_NAMESPACE, (int *) NULL,
2776 (struct symtab **) NULL);
2782 i1 = find_methods (t, copy, sym_arr);
2785 /* There is exactly one field with that name. */
2788 if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
2790 values.sals = (struct symtab_and_line *)
2791 xmalloc (sizeof (struct symtab_and_line));
2793 values.sals[0] = find_function_start_sal (sym,
2804 /* There is more than one field with that name
2805 (overloaded). Ask the user which one to use. */
2806 return decode_line_2 (sym_arr, i1, funfirstline, canonical);
2812 if (OPNAME_PREFIX_P (copy))
2814 tmp = (char *) alloca (strlen (copy + 3) + 9);
2815 strcpy (tmp, "operator ");
2816 strcat (tmp, copy + 3);
2823 ("the class `%s' does not have destructor defined\n",
2824 SYMBOL_SOURCE_NAME (sym_class));
2827 ("the class %s does not have any method named %s\n",
2828 SYMBOL_SOURCE_NAME (sym_class), tmp);
2829 cplusplus_hint (saved_arg);
2830 return_to_top_level (RETURN_ERROR);
2834 /* Move pointer up to next possible class/namespace token */
2835 p = p2 + 1; /* restart with old value +1 */
2836 /* Move pointer ahead to next double-colon */
2837 while (*p && (p[0] != ' ') && (p[0] != '\t') && (p[0] != '\''))
2841 temp_end = find_template_name_end (p);
2843 error ("malformed template specification in command");
2846 else if ((p[0] == ':') && (p[1] == ':'))
2847 break; /* found double-colon */
2853 break; /* out of the while (1) */
2855 p2 = p; /* save restart for next time around */
2856 *argptr = saved_arg2; /* restore argptr */
2859 /* Last chance attempt -- check entire name as a symbol */
2860 /* Use "copy" in preparation for jumping out of this block,
2861 to be consistent with usage following the jump target */
2862 copy = (char *) alloca (p - saved_arg2 + 1);
2863 memcpy (copy, saved_arg2, p - saved_arg2);
2864 /* Note: if is_quoted should be true, we snuff out quote here anyway */
2865 copy[p - saved_arg2] = '\000';
2866 /* Set argptr to skip over the name */
2867 *argptr = (*p == '\'') ? p + 1 : p;
2868 /* Look up entire name */
2869 sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
2870 s = (struct symtab *) 0;
2871 /* Prepare to jump: restore the " if (condition)" so outer layers see it */
2872 /* Symbol was found --> jump to normal symbol processing.
2873 Code following "symbol_found" expects "copy" to have the
2874 symbol name, "sym" to have the symbol pointer, "s" to be
2875 a specified file's symtab, and sym_symtab to be the symbol's
2877 /* By jumping there we avoid falling through the FILE:LINE and
2878 FILE:FUNC processing stuff below */
2882 /* Couldn't find any interpretation as classes/namespaces, so give up */
2884 /* The quotes are important if copy is empty. */
2886 ("Can't find member of namespace, class, struct, or union named \"%s\"\n", copy);
2887 cplusplus_hint (saved_arg);
2888 return_to_top_level (RETURN_ERROR);
2893 /* Extract the file name. */
2895 while (p != *argptr && p[-1] == ' ')
2897 if ((*p == '"') && is_quote_enclosed)
2899 copy = (char *) alloca (p - *argptr + 1);
2900 if ((**argptr == '"') && is_quote_enclosed)
2902 memcpy (copy, *argptr + 1, p - *argptr - 1);
2903 /* It may have the ending quote right after the file name */
2904 if (copy[p - *argptr - 2] == '"')
2905 copy[p - *argptr - 2] = 0;
2907 copy[p - *argptr - 1] = 0;
2911 memcpy (copy, *argptr, p - *argptr);
2912 copy[p - *argptr] = 0;
2915 /* Find that file's data. */
2916 s = lookup_symtab (copy);
2919 if (!have_full_symbols () && !have_partial_symbols ())
2920 error (no_symtab_msg);
2921 error ("No source file named %s.", copy);
2924 /* Discard the file name from the arg. */
2926 while (*p == ' ' || *p == '\t')
2931 /* No one really seems to know why this was added. It certainly
2932 breaks the command line, though, whenever the passed
2933 name is of the form ClassName::Method. This bit of code
2934 singles out the class name, and if funfirstline is set (for
2935 example, you are setting a breakpoint at this function),
2936 you get an error. This did not occur with earlier
2937 verions, so I am ifdef'ing this out. 3/29/99 */
2940 /* Check if what we have till now is a symbol name */
2942 /* We may be looking at a template instantiation such
2943 as "foo<int>". Check here whether we know about it,
2944 instead of falling through to the code below which
2945 handles ordinary function names, because that code
2946 doesn't like seeing '<' and '>' in a name -- the
2947 skip_quoted call doesn't go past them. So see if we
2948 can figure it out right now. */
2950 copy = (char *) alloca (p - *argptr + 1);
2951 memcpy (copy, *argptr, p - *argptr);
2952 copy[p - *argptr] = '\000';
2953 sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
2956 /* Yes, we have a symbol; jump to symbol processing */
2957 /* Code after symbol_found expects S, SYM_SYMTAB, SYM,
2958 and COPY to be set correctly */
2959 *argptr = (*p == '\'') ? p + 1 : p;
2960 s = (struct symtab *) 0;
2963 /* Otherwise fall out from here and go to file/line spec
2968 /* S is specified file's symtab, or 0 if no file specified.
2969 arg no longer contains the file name. */
2971 /* Check whether arg is all digits (and sign) */
2974 if (*q == '-' || *q == '+')
2976 while (*q >= '0' && *q <= '9')
2979 if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ','))
2981 /* We found a token consisting of all digits -- at least one digit. */
2988 /* We might need a canonical line spec if no file was specified. */
2989 int need_canonical = (s == 0) ? 1 : 0;
2991 /* This is where we need to make sure that we have good defaults.
2992 We must guarantee that this section of code is never executed
2993 when we are called with just a function name, since
2994 select_source_symtab calls us with such an argument */
2996 if (s == 0 && default_symtab == 0)
2998 select_source_symtab (0);
2999 default_symtab = current_source_symtab;
3000 default_line = current_source_line;
3003 if (**argptr == '+')
3004 sign = plus, (*argptr)++;
3005 else if (**argptr == '-')
3006 sign = minus, (*argptr)++;
3007 val.line = atoi (*argptr);
3014 val.line = default_line + val.line;
3020 val.line = default_line - val.line;
3025 break; /* No need to adjust val.line. */
3028 while (*q == ' ' || *q == '\t')
3034 /* It is possible that this source file has more than one symtab,
3035 and that the new line number specification has moved us from the
3036 default (in s) to a new one. */
3037 val.symtab = find_line_symtab (s, val.line, NULL, NULL);
3038 if (val.symtab == 0)
3042 values.sals = (struct symtab_and_line *)
3043 xmalloc (sizeof (struct symtab_and_line));
3044 values.sals[0] = val;
3047 build_canonical_line_spec (values.sals, NULL, canonical);
3051 /* Arg token is not digits => try it as a variable name
3052 Find the next token (everything up to end or next whitespace). */
3054 if (**argptr == '$') /* May be a convenience variable */
3055 p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); /* One or two $ chars possible */
3058 p = skip_quoted (*argptr);
3060 error ("Unmatched single quote.");
3062 else if (has_parens)
3068 p = skip_quoted (*argptr);
3071 copy = (char *) alloca (p - *argptr + 1);
3072 memcpy (copy, *argptr, p - *argptr);
3073 copy[p - *argptr] = '\0';
3076 && copy[0] == copy[p - *argptr - 1]
3077 && strchr (gdb_completer_quote_characters, copy[0]) != NULL)
3079 copy[p - *argptr - 1] = '\0';
3082 while (*p == ' ' || *p == '\t')
3086 /* If it starts with $: may be a legitimate variable or routine name
3087 (e.g. HP-UX millicode routines such as $$dyncall), or it may
3088 be history value, or it may be a convenience variable */
3094 int need_canonical = 0;
3096 p = (copy[1] == '$') ? copy + 2 : copy + 1;
3097 while (*p >= '0' && *p <= '9')
3099 if (!*p) /* reached end of token without hitting non-digit */
3101 /* We have a value history reference */
3102 sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index);
3103 valx = access_value_history ((copy[1] == '$') ? -index : index);
3104 if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
3105 error ("History values used in line specs must have integer values.");
3109 /* Not all digits -- may be user variable/function or a
3110 convenience variable */
3112 /* Look up entire name as a symbol first */
3113 sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
3114 s = (struct symtab *) 0;
3116 /* Symbol was found --> jump to normal symbol processing.
3117 Code following "symbol_found" expects "copy" to have the
3118 symbol name, "sym" to have the symbol pointer, "s" to be
3119 a specified file's symtab, and sym_symtab to be the symbol's
3124 /* If symbol was not found, look in minimal symbol tables */
3125 msymbol = lookup_minimal_symbol (copy, 0, 0);
3126 /* Min symbol was found --> jump to minsym processing. */
3128 goto minimal_symbol_found;
3130 /* Not a user variable or function -- must be convenience variable */
3131 need_canonical = (s == 0) ? 1 : 0;
3132 valx = value_of_internalvar (lookup_internalvar (copy + 1));
3133 if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
3134 error ("Convenience variables used in line specs must have integer values.");
3137 /* Either history value or convenience value from above, in valx */
3138 val.symtab = s ? s : default_symtab;
3139 val.line = value_as_long (valx);
3142 values.sals = (struct symtab_and_line *) xmalloc (sizeof val);
3143 values.sals[0] = val;
3147 build_canonical_line_spec (values.sals, NULL, canonical);
3153 /* Look up that token as a variable.
3154 If file specified, use that file's per-file block to start with. */
3156 sym = lookup_symbol (copy,
3157 (s ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)
3158 : get_selected_block ()),
3159 VAR_NAMESPACE, 0, &sym_symtab);
3161 symbol_found: /* We also jump here from inside the C++ class/namespace
3162 code on finding a symbol of the form "A::B::C" */
3166 if (SYMBOL_CLASS (sym) == LOC_BLOCK)
3168 /* Arg is the name of a function */
3169 values.sals = (struct symtab_and_line *)
3170 xmalloc (sizeof (struct symtab_and_line));
3171 values.sals[0] = find_function_start_sal (sym, funfirstline);
3174 /* Don't use the SYMBOL_LINE; if used at all it points to
3175 the line containing the parameters or thereabouts, not
3176 the first line of code. */
3178 /* We might need a canonical line spec if it is a static
3182 struct blockvector *bv = BLOCKVECTOR (sym_symtab);
3183 struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
3184 if (lookup_block_symbol (b, copy, VAR_NAMESPACE) != NULL)
3185 build_canonical_line_spec (values.sals, copy, canonical);
3192 error ("\"%s\" is not a function", copy);
3193 else if (SYMBOL_LINE (sym) != 0)
3195 /* We know its line number. */
3196 values.sals = (struct symtab_and_line *)
3197 xmalloc (sizeof (struct symtab_and_line));
3199 memset (&values.sals[0], 0, sizeof (values.sals[0]));
3200 values.sals[0].symtab = sym_symtab;
3201 values.sals[0].line = SYMBOL_LINE (sym);
3205 /* This can happen if it is compiled with a compiler which doesn't
3206 put out line numbers for variables. */
3207 /* FIXME: Shouldn't we just set .line and .symtab to zero
3208 and return? For example, "info line foo" could print
3210 error ("Line number not known for symbol \"%s\"", copy);
3214 msymbol = lookup_minimal_symbol (copy, NULL, NULL);
3216 minimal_symbol_found: /* We also jump here from the case for variables
3217 that begin with '$' */
3219 if (msymbol != NULL)
3221 values.sals = (struct symtab_and_line *)
3222 xmalloc (sizeof (struct symtab_and_line));
3223 values.sals[0] = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol),
3224 (struct sec *) 0, 0);
3225 values.sals[0].section = SYMBOL_BFD_SECTION (msymbol);
3228 values.sals[0].pc += FUNCTION_START_OFFSET;
3229 values.sals[0].pc = SKIP_PROLOGUE (values.sals[0].pc);
3235 if (!have_full_symbols () &&
3236 !have_partial_symbols () && !have_minimal_symbols ())
3237 error (no_symtab_msg);
3239 error ("Function \"%s\" not defined.", copy);
3240 return values; /* for lint */
3243 struct symtabs_and_lines
3244 decode_line_spec (string, funfirstline)
3248 struct symtabs_and_lines sals;
3250 error ("Empty line specification.");
3251 sals = decode_line_1 (&string, funfirstline,
3252 current_source_symtab, current_source_line,
3255 error ("Junk at end of line specification: %s", string);
3259 /* Given a list of NELTS symbols in SYM_ARR, return a list of lines to
3260 operate on (ask user if necessary).
3261 If CANONICAL is non-NULL return a corresponding array of mangled names
3262 as canonical line specs there. */
3264 static struct symtabs_and_lines
3265 decode_line_2 (sym_arr, nelts, funfirstline, canonical)
3266 struct symbol *sym_arr[];
3271 struct symtabs_and_lines values, return_values;
3276 struct cleanup *old_chain;
3277 char **canonical_arr = (char **) NULL;
3279 values.sals = (struct symtab_and_line *)
3280 alloca (nelts * sizeof (struct symtab_and_line));
3281 return_values.sals = (struct symtab_and_line *)
3282 xmalloc (nelts * sizeof (struct symtab_and_line));
3283 old_chain = make_cleanup (free, return_values.sals);
3287 canonical_arr = (char **) xmalloc (nelts * sizeof (char *));
3288 make_cleanup (free, canonical_arr);
3289 memset (canonical_arr, 0, nelts * sizeof (char *));
3290 *canonical = canonical_arr;
3294 printf_unfiltered ("[0] cancel\n[1] all\n");
3297 INIT_SAL (&return_values.sals[i]); /* initialize to zeroes */
3298 INIT_SAL (&values.sals[i]);
3299 if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK)
3301 values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline);
3302 printf_unfiltered ("[%d] %s at %s:%d\n",
3304 SYMBOL_SOURCE_NAME (sym_arr[i]),
3305 values.sals[i].symtab->filename,
3306 values.sals[i].line);
3309 printf_unfiltered ("?HERE\n");
3313 if ((prompt = getenv ("PS2")) == NULL)
3317 args = command_line_input (prompt, 0, "overload-choice");
3319 if (args == 0 || *args == 0)
3320 error_no_arg ("one or more choice numbers");
3328 while (*arg1 >= '0' && *arg1 <= '9')
3330 if (*arg1 && *arg1 != ' ' && *arg1 != '\t')
3331 error ("Arguments must be choice numbers.");
3336 error ("cancelled");
3341 for (i = 0; i < nelts; i++)
3343 if (canonical_arr[i] == NULL)
3345 symname = SYMBOL_NAME (sym_arr[i]);
3346 canonical_arr[i] = savestring (symname, strlen (symname));
3350 memcpy (return_values.sals, values.sals,
3351 (nelts * sizeof (struct symtab_and_line)));
3352 return_values.nelts = nelts;
3353 discard_cleanups (old_chain);
3354 return return_values;
3357 if (num >= nelts + 2)
3359 printf_unfiltered ("No choice number %d.\n", num);
3364 if (values.sals[num].pc)
3368 symname = SYMBOL_NAME (sym_arr[num]);
3369 make_cleanup (free, symname);
3370 canonical_arr[i] = savestring (symname, strlen (symname));
3372 return_values.sals[i++] = values.sals[num];
3373 values.sals[num].pc = 0;
3377 printf_unfiltered ("duplicate request for %d ignored.\n", num);
3382 while (*args == ' ' || *args == '\t')
3385 return_values.nelts = i;
3386 discard_cleanups (old_chain);
3387 return return_values;
3391 /* Slave routine for sources_info. Force line breaks at ,'s.
3392 NAME is the name to print and *FIRST is nonzero if this is the first
3393 name printed. Set *FIRST to zero. */
3395 output_source_filename (name, first)
3399 /* Table of files printed so far. Since a single source file can
3400 result in several partial symbol tables, we need to avoid printing
3401 it more than once. Note: if some of the psymtabs are read in and
3402 some are not, it gets printed both under "Source files for which
3403 symbols have been read" and "Source files for which symbols will
3404 be read in on demand". I consider this a reasonable way to deal
3405 with the situation. I'm not sure whether this can also happen for
3406 symtabs; it doesn't hurt to check. */
3407 static char **tab = NULL;
3408 /* Allocated size of tab in elements.
3409 Start with one 256-byte block (when using GNU malloc.c).
3410 24 is the malloc overhead when range checking is in effect. */
3411 static int tab_alloc_size = (256 - 24) / sizeof (char *);
3412 /* Current size of tab in elements. */
3413 static int tab_cur_size;
3420 tab = (char **) xmalloc (tab_alloc_size * sizeof (*tab));
3424 /* Is NAME in tab? */
3425 for (p = tab; p < tab + tab_cur_size; p++)
3426 if (STREQ (*p, name))
3427 /* Yes; don't print it again. */
3429 /* No; add it to tab. */
3430 if (tab_cur_size == tab_alloc_size)
3432 tab_alloc_size *= 2;
3433 tab = (char **) xrealloc ((char *) tab, tab_alloc_size * sizeof (*tab));
3435 tab[tab_cur_size++] = name;
3443 printf_filtered (", ");
3447 fputs_filtered (name, gdb_stdout);
3451 sources_info (ignore, from_tty)
3455 register struct symtab *s;
3456 register struct partial_symtab *ps;
3457 register struct objfile *objfile;
3460 if (!have_full_symbols () && !have_partial_symbols ())
3462 error (no_symtab_msg);
3465 printf_filtered ("Source files for which symbols have been read in:\n\n");
3468 ALL_SYMTABS (objfile, s)
3470 output_source_filename (s->filename, &first);
3472 printf_filtered ("\n\n");
3474 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
3477 ALL_PSYMTABS (objfile, ps)
3481 output_source_filename (ps->filename, &first);
3484 printf_filtered ("\n");
3488 file_matches (file, files, nfiles)
3495 if (file != NULL && nfiles != 0)
3497 for (i = 0; i < nfiles; i++)
3499 if (strcmp (files[i], basename (file)) == 0)
3503 else if (nfiles == 0)
3508 /* Free any memory associated with a search. */
3510 free_search_symbols (symbols)
3511 struct symbol_search *symbols;
3513 struct symbol_search *p;
3514 struct symbol_search *next;
3516 for (p = symbols; p != NULL; p = next)
3523 /* Search the symbol table for matches to the regular expression REGEXP,
3524 returning the results in *MATCHES.
3526 Only symbols of KIND are searched:
3527 FUNCTIONS_NAMESPACE - search all functions
3528 TYPES_NAMESPACE - search all type names
3529 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
3530 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
3531 and constants (enums)
3533 free_search_symbols should be called when *MATCHES is no longer needed.
3536 search_symbols (regexp, kind, nfiles, files, matches)
3538 namespace_enum kind;
3541 struct symbol_search **matches;
3544 register struct symtab *s;
3545 register struct partial_symtab *ps;
3546 register struct blockvector *bv;
3547 struct blockvector *prev_bv = 0;
3548 register struct block *b;
3551 register struct symbol *sym;
3552 struct partial_symbol **psym;
3553 struct objfile *objfile;
3554 struct minimal_symbol *msymbol;
3557 static enum minimal_symbol_type types[]
3559 {mst_data, mst_text, mst_abs, mst_unknown};
3560 static enum minimal_symbol_type types2[]
3562 {mst_bss, mst_file_text, mst_abs, mst_unknown};
3563 static enum minimal_symbol_type types3[]
3565 {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown};
3566 static enum minimal_symbol_type types4[]
3568 {mst_file_bss, mst_text, mst_abs, mst_unknown};
3569 enum minimal_symbol_type ourtype;
3570 enum minimal_symbol_type ourtype2;
3571 enum minimal_symbol_type ourtype3;
3572 enum minimal_symbol_type ourtype4;
3573 struct symbol_search *sr;
3574 struct symbol_search *psr;
3575 struct symbol_search *tail;
3576 struct cleanup *old_chain = NULL;
3578 if (kind < LABEL_NAMESPACE)
3579 error ("must search on specific namespace");
3581 ourtype = types[(int) (kind - LABEL_NAMESPACE)];
3582 ourtype2 = types2[(int) (kind - LABEL_NAMESPACE)];
3583 ourtype3 = types3[(int) (kind - LABEL_NAMESPACE)];
3584 ourtype4 = types4[(int) (kind - LABEL_NAMESPACE)];
3586 sr = *matches = NULL;
3591 /* Make sure spacing is right for C++ operators.
3592 This is just a courtesy to make the matching less sensitive
3593 to how many spaces the user leaves between 'operator'
3594 and <TYPENAME> or <OPERATOR>. */
3596 char *opname = operator_chars (regexp, &opend);
3599 int fix = -1; /* -1 means ok; otherwise number of spaces needed. */
3600 if (isalpha (*opname) || *opname == '_' || *opname == '$')
3602 /* There should 1 space between 'operator' and 'TYPENAME'. */
3603 if (opname[-1] != ' ' || opname[-2] == ' ')
3608 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
3609 if (opname[-1] == ' ')
3612 /* If wrong number of spaces, fix it. */
3615 char *tmp = (char *) alloca (opend - opname + 10);
3616 sprintf (tmp, "operator%.*s%s", fix, " ", opname);
3621 if (0 != (val = re_comp (regexp)))
3622 error ("Invalid regexp (%s): %s", val, regexp);
3625 /* Search through the partial symtabs *first* for all symbols
3626 matching the regexp. That way we don't have to reproduce all of
3627 the machinery below. */
3629 ALL_PSYMTABS (objfile, ps)
3631 struct partial_symbol **bound, **gbound, **sbound;
3637 gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms;
3638 sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms;
3641 /* Go through all of the symbols stored in a partial
3642 symtab in one loop. */
3643 psym = objfile->global_psymbols.list + ps->globals_offset;
3648 if (bound == gbound && ps->n_static_syms != 0)
3650 psym = objfile->static_psymbols.list + ps->statics_offset;
3661 /* If it would match (logic taken from loop below)
3662 load the file and go on to the next one */
3663 if (file_matches (ps->filename, files, nfiles)
3664 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (*psym))
3665 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (*psym) != LOC_TYPEDEF
3666 && SYMBOL_CLASS (*psym) != LOC_BLOCK)
3667 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK)
3668 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_TYPEDEF)
3669 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK))))
3671 PSYMTAB_TO_SYMTAB (ps);
3679 /* Here, we search through the minimal symbol tables for functions
3680 and variables that match, and force their symbols to be read.
3681 This is in particular necessary for demangled variable names,
3682 which are no longer put into the partial symbol tables.
3683 The symbol will then be found during the scan of symtabs below.
3685 For functions, find_pc_symtab should succeed if we have debug info
3686 for the function, for variables we have to call lookup_symbol
3687 to determine if the variable has debug info.
3688 If the lookup fails, set found_misc so that we will rescan to print
3689 any matching symbols without debug info.
3692 if (nfiles == 0 && (kind == VARIABLES_NAMESPACE || kind == FUNCTIONS_NAMESPACE))
3694 ALL_MSYMBOLS (objfile, msymbol)
3696 if (MSYMBOL_TYPE (msymbol) == ourtype ||
3697 MSYMBOL_TYPE (msymbol) == ourtype2 ||
3698 MSYMBOL_TYPE (msymbol) == ourtype3 ||
3699 MSYMBOL_TYPE (msymbol) == ourtype4)
3701 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
3703 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))
3705 if (kind == FUNCTIONS_NAMESPACE
3706 || lookup_symbol (SYMBOL_NAME (msymbol),
3707 (struct block *) NULL,
3709 0, (struct symtab **) NULL) == NULL)
3717 ALL_SYMTABS (objfile, s)
3719 bv = BLOCKVECTOR (s);
3720 /* Often many files share a blockvector.
3721 Scan each blockvector only once so that
3722 we don't get every symbol many times.
3723 It happens that the first symtab in the list
3724 for any given blockvector is the main file. */
3726 for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
3728 b = BLOCKVECTOR_BLOCK (bv, i);
3729 /* Skip the sort if this block is always sorted. */
3730 if (!BLOCK_SHOULD_SORT (b))
3731 sort_block_syms (b);
3732 for (j = 0; j < BLOCK_NSYMS (b); j++)
3735 sym = BLOCK_SYM (b, j);
3736 if (file_matches (s->filename, files, nfiles)
3737 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (sym))
3738 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (sym) != LOC_TYPEDEF
3739 && SYMBOL_CLASS (sym) != LOC_BLOCK
3740 && SYMBOL_CLASS (sym) != LOC_CONST)
3741 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK)
3742 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
3743 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK))))
3746 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
3750 psr->msymbol = NULL;
3755 old_chain = make_cleanup ((make_cleanup_func)
3756 free_search_symbols, sr);
3767 /* If there are no eyes, avoid all contact. I mean, if there are
3768 no debug symbols, then print directly from the msymbol_vector. */
3770 if (found_misc || kind != FUNCTIONS_NAMESPACE)
3772 ALL_MSYMBOLS (objfile, msymbol)
3774 if (MSYMBOL_TYPE (msymbol) == ourtype ||
3775 MSYMBOL_TYPE (msymbol) == ourtype2 ||
3776 MSYMBOL_TYPE (msymbol) == ourtype3 ||
3777 MSYMBOL_TYPE (msymbol) == ourtype4)
3779 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
3781 /* Functions: Look up by address. */
3782 if (kind != FUNCTIONS_NAMESPACE ||
3783 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))))
3785 /* Variables/Absolutes: Look up by name */
3786 if (lookup_symbol (SYMBOL_NAME (msymbol),
3787 (struct block *) NULL, VAR_NAMESPACE,
3788 0, (struct symtab **) NULL) == NULL)
3791 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
3793 psr->msymbol = msymbol;
3800 old_chain = make_cleanup ((make_cleanup_func)
3801 free_search_symbols, &sr);
3815 discard_cleanups (old_chain);
3818 /* Helper function for symtab_symbol_info, this function uses
3819 the data returned from search_symbols() to print information
3820 regarding the match to gdb_stdout.
3823 print_symbol_info (kind, s, sym, block, last)
3824 namespace_enum kind;
3830 if (last == NULL || strcmp (last, s->filename) != 0)
3832 fputs_filtered ("\nFile ", gdb_stdout);
3833 fputs_filtered (s->filename, gdb_stdout);
3834 fputs_filtered (":\n", gdb_stdout);
3837 if (kind != TYPES_NAMESPACE && block == STATIC_BLOCK)
3838 printf_filtered ("static ");
3840 /* Typedef that is not a C++ class */
3841 if (kind == TYPES_NAMESPACE
3842 && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE)
3843 c_typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout);
3844 /* variable, func, or typedef-that-is-c++-class */
3845 else if (kind < TYPES_NAMESPACE ||
3846 (kind == TYPES_NAMESPACE &&
3847 SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE))
3849 type_print (SYMBOL_TYPE (sym),
3850 (SYMBOL_CLASS (sym) == LOC_TYPEDEF
3851 ? "" : SYMBOL_SOURCE_NAME (sym)),
3854 printf_filtered (";\n");
3859 /* Tiemann says: "info methods was never implemented." */
3860 char *demangled_name;
3861 c_type_print_base (TYPE_FN_FIELD_TYPE (t, block),
3863 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t, block),
3865 if (TYPE_FN_FIELD_STUB (t, block))
3866 check_stub_method (TYPE_DOMAIN_TYPE (type), j, block);
3868 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t, block),
3869 DMGL_ANSI | DMGL_PARAMS);
3870 if (demangled_name == NULL)
3871 fprintf_filtered (stream, "<badly mangled name %s>",
3872 TYPE_FN_FIELD_PHYSNAME (t, block));
3875 fputs_filtered (demangled_name, stream);
3876 free (demangled_name);
3882 /* This help function for symtab_symbol_info() prints information
3883 for non-debugging symbols to gdb_stdout.
3886 print_msymbol_info (msymbol)
3887 struct minimal_symbol *msymbol;
3889 printf_filtered (" %08lx %s\n",
3890 (unsigned long) SYMBOL_VALUE_ADDRESS (msymbol),
3891 SYMBOL_SOURCE_NAME (msymbol));
3894 /* This is the guts of the commands "info functions", "info types", and
3895 "info variables". It calls search_symbols to find all matches and then
3896 print_[m]symbol_info to print out some useful information about the
3900 symtab_symbol_info (regexp, kind, from_tty)
3902 namespace_enum kind;
3905 static char *classnames[]
3907 {"variable", "function", "type", "method"};
3908 struct symbol_search *symbols;
3909 struct symbol_search *p;
3910 struct cleanup *old_chain;
3911 char *last_filename = NULL;
3914 /* must make sure that if we're interrupted, symbols gets freed */
3915 search_symbols (regexp, kind, 0, (char **) NULL, &symbols);
3916 old_chain = make_cleanup ((make_cleanup_func) free_search_symbols, symbols);
3918 printf_filtered (regexp
3919 ? "All %ss matching regular expression \"%s\":\n"
3920 : "All defined %ss:\n",
3921 classnames[(int) (kind - LABEL_NAMESPACE - 1)], regexp);
3923 for (p = symbols; p != NULL; p = p->next)
3927 if (p->msymbol != NULL)
3931 printf_filtered ("\nNon-debugging symbols:\n");
3934 print_msymbol_info (p->msymbol);
3938 print_symbol_info (kind,
3943 last_filename = p->symtab->filename;
3947 do_cleanups (old_chain);
3951 variables_info (regexp, from_tty)
3955 symtab_symbol_info (regexp, VARIABLES_NAMESPACE, from_tty);
3959 functions_info (regexp, from_tty)
3963 symtab_symbol_info (regexp, FUNCTIONS_NAMESPACE, from_tty);
3967 types_info (regexp, from_tty)
3971 symtab_symbol_info (regexp, TYPES_NAMESPACE, from_tty);
3975 /* Tiemann says: "info methods was never implemented." */
3977 methods_info (regexp)
3980 symtab_symbol_info (regexp, METHODS_NAMESPACE, 0, from_tty);
3984 /* Breakpoint all functions matching regular expression. */
3986 rbreak_command (regexp, from_tty)
3990 struct symbol_search *ss;
3991 struct symbol_search *p;
3992 struct cleanup *old_chain;
3994 search_symbols (regexp, FUNCTIONS_NAMESPACE, 0, (char **) NULL, &ss);
3995 old_chain = make_cleanup ((make_cleanup_func) free_search_symbols, ss);
3997 for (p = ss; p != NULL; p = p->next)
3999 if (p->msymbol == NULL)
4001 char *string = (char *) alloca (strlen (p->symtab->filename)
4002 + strlen (SYMBOL_NAME (p->symbol))
4004 strcpy (string, p->symtab->filename);
4005 strcat (string, ":'");
4006 strcat (string, SYMBOL_NAME (p->symbol));
4007 strcat (string, "'");
4008 break_command (string, from_tty);
4009 print_symbol_info (FUNCTIONS_NAMESPACE,
4013 p->symtab->filename);
4017 break_command (SYMBOL_NAME (p->msymbol), from_tty);
4018 printf_filtered ("<function, no debug info> %s;\n",
4019 SYMBOL_SOURCE_NAME (p->msymbol));
4023 do_cleanups (old_chain);
4027 /* Return Nonzero if block a is lexically nested within block b,
4028 or if a and b have the same pc range.
4029 Return zero otherwise. */
4032 struct block *a, *b;
4036 return BLOCK_START (a) >= BLOCK_START (b)
4037 && BLOCK_END (a) <= BLOCK_END (b);
4041 /* Helper routine for make_symbol_completion_list. */
4043 static int return_val_size;
4044 static int return_val_index;
4045 static char **return_val;
4047 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
4049 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
4050 /* Put only the mangled name on the list. */ \
4051 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
4052 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
4053 completion_list_add_name \
4054 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
4056 completion_list_add_name \
4057 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
4060 /* Test to see if the symbol specified by SYMNAME (which is already
4061 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
4062 characters. If so, add it to the current completion list. */
4065 completion_list_add_name (symname, sym_text, sym_text_len, text, word)
4075 /* clip symbols that cannot match */
4077 if (strncmp (symname, sym_text, sym_text_len) != 0)
4082 /* Clip any symbol names that we've already considered. (This is a
4083 time optimization) */
4085 for (i = 0; i < return_val_index; ++i)
4087 if (STREQ (symname, return_val[i]))
4093 /* We have a match for a completion, so add SYMNAME to the current list
4094 of matches. Note that the name is moved to freshly malloc'd space. */
4098 if (word == sym_text)
4100 new = xmalloc (strlen (symname) + 5);
4101 strcpy (new, symname);
4103 else if (word > sym_text)
4105 /* Return some portion of symname. */
4106 new = xmalloc (strlen (symname) + 5);
4107 strcpy (new, symname + (word - sym_text));
4111 /* Return some of SYM_TEXT plus symname. */
4112 new = xmalloc (strlen (symname) + (sym_text - word) + 5);
4113 strncpy (new, word, sym_text - word);
4114 new[sym_text - word] = '\0';
4115 strcat (new, symname);
4118 /* Recheck for duplicates if we intend to add a modified symbol. */
4119 if (word != sym_text)
4121 for (i = 0; i < return_val_index; ++i)
4123 if (STREQ (new, return_val[i]))
4131 if (return_val_index + 3 > return_val_size)
4133 newsize = (return_val_size *= 2) * sizeof (char *);
4134 return_val = (char **) xrealloc ((char *) return_val, newsize);
4136 return_val[return_val_index++] = new;
4137 return_val[return_val_index] = NULL;
4141 /* Return a NULL terminated array of all symbols (regardless of class) which
4142 begin by matching TEXT. If the answer is no symbols, then the return value
4143 is an array which contains only a NULL pointer.
4145 Problem: All of the symbols have to be copied because readline frees them.
4146 I'm not going to worry about this; hopefully there won't be that many. */
4149 make_symbol_completion_list (text, word)
4153 register struct symbol *sym;
4154 register struct symtab *s;
4155 register struct partial_symtab *ps;
4156 register struct minimal_symbol *msymbol;
4157 register struct objfile *objfile;
4158 register struct block *b, *surrounding_static_block = 0;
4160 struct partial_symbol **psym;
4161 /* The symbol we are completing on. Points in same buffer as text. */
4163 /* Length of sym_text. */
4166 /* Now look for the symbol we are supposed to complete on.
4167 FIXME: This should be language-specific. */
4171 char *quote_pos = NULL;
4173 /* First see if this is a quoted string. */
4175 for (p = text; *p != '\0'; ++p)
4177 if (quote_found != '\0')
4179 if (*p == quote_found)
4180 /* Found close quote. */
4182 else if (*p == '\\' && p[1] == quote_found)
4183 /* A backslash followed by the quote character
4184 doesn't end the string. */
4187 else if (*p == '\'' || *p == '"')
4193 if (quote_found == '\'')
4194 /* A string within single quotes can be a symbol, so complete on it. */
4195 sym_text = quote_pos + 1;
4196 else if (quote_found == '"')
4197 /* A double-quoted string is never a symbol, nor does it make sense
4198 to complete it any other way. */
4202 /* It is not a quoted string. Break it based on the characters
4203 which are in symbols. */
4206 if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
4215 sym_text_len = strlen (sym_text);
4217 return_val_size = 100;
4218 return_val_index = 0;
4219 return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *));
4220 return_val[0] = NULL;
4222 /* Look through the partial symtabs for all symbols which begin
4223 by matching SYM_TEXT. Add each one that you find to the list. */
4225 ALL_PSYMTABS (objfile, ps)
4227 /* If the psymtab's been read in we'll get it when we search
4228 through the blockvector. */
4232 for (psym = objfile->global_psymbols.list + ps->globals_offset;
4233 psym < (objfile->global_psymbols.list + ps->globals_offset
4234 + ps->n_global_syms);
4237 /* If interrupted, then quit. */
4239 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
4242 for (psym = objfile->static_psymbols.list + ps->statics_offset;
4243 psym < (objfile->static_psymbols.list + ps->statics_offset
4244 + ps->n_static_syms);
4248 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
4252 /* At this point scan through the misc symbol vectors and add each
4253 symbol you find to the list. Eventually we want to ignore
4254 anything that isn't a text symbol (everything else will be
4255 handled by the psymtab code above). */
4257 ALL_MSYMBOLS (objfile, msymbol)
4260 COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word);
4263 /* Search upwards from currently selected frame (so that we can
4264 complete on local vars. */
4266 for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
4268 if (!BLOCK_SUPERBLOCK (b))
4270 surrounding_static_block = b; /* For elmin of dups */
4273 /* Also catch fields of types defined in this places which match our
4274 text string. Only complete on types visible from current context. */
4276 for (i = 0; i < BLOCK_NSYMS (b); i++)
4278 sym = BLOCK_SYM (b, i);
4279 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
4280 if (SYMBOL_CLASS (sym) == LOC_TYPEDEF)
4282 struct type *t = SYMBOL_TYPE (sym);
4283 enum type_code c = TYPE_CODE (t);
4285 if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT)
4287 for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++)
4289 if (TYPE_FIELD_NAME (t, j))
4291 completion_list_add_name (TYPE_FIELD_NAME (t, j),
4292 sym_text, sym_text_len, text, word);
4300 /* Go through the symtabs and check the externs and statics for
4301 symbols which match. */
4303 ALL_SYMTABS (objfile, s)
4306 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
4307 for (i = 0; i < BLOCK_NSYMS (b); i++)
4309 sym = BLOCK_SYM (b, i);
4310 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
4314 ALL_SYMTABS (objfile, s)
4317 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
4318 /* Don't do this block twice. */
4319 if (b == surrounding_static_block)
4321 for (i = 0; i < BLOCK_NSYMS (b); i++)
4323 sym = BLOCK_SYM (b, i);
4324 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
4328 return (return_val);
4331 /* Determine if PC is in the prologue of a function. The prologue is the area
4332 between the first instruction of a function, and the first executable line.
4333 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
4335 If non-zero, func_start is where we think the prologue starts, possibly
4336 by previous examination of symbol table information.
4340 in_prologue (pc, func_start)
4342 CORE_ADDR func_start;
4344 struct symtab_and_line sal;
4345 CORE_ADDR func_addr, func_end;
4347 if (!find_pc_partial_function (pc, NULL, &func_addr, &func_end))
4348 goto nosyms; /* Might be in prologue */
4350 sal = find_pc_line (func_addr, 0);
4355 /* sal.end is the address of the first instruction past sal.line. */
4356 if (sal.end > func_addr
4357 && sal.end <= func_end) /* Is prologue in function? */
4358 return pc < sal.end; /* Yes, is pc in prologue? */
4360 /* The line after the prologue seems to be outside the function. In this
4361 case, tell the caller to find the prologue the hard way. */
4365 /* Come here when symtabs don't contain line # info. In this case, it is
4366 likely that the user has stepped into a library function w/o symbols, or
4367 is doing a stepi/nexti through code without symbols. */
4371 /* If func_start is zero (meaning unknown) then we don't know whether pc is
4372 in the prologue or not. I.E. it might be. */
4377 /* We need to call the target-specific prologue skipping functions with the
4378 function's start address because PC may be pointing at an instruction that
4379 could be mistakenly considered part of the prologue. */
4381 func_start = SKIP_PROLOGUE (func_start);
4383 return pc < func_start;
4387 /* Begin overload resolution functions */
4388 /* Helper routine for make_symbol_completion_list. */
4390 static int sym_return_val_size;
4391 static int sym_return_val_index;
4392 static struct symbol **sym_return_val;
4394 /* Test to see if the symbol specified by SYMNAME (which is already
4395 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
4396 characters. If so, add it to the current completion list. */
4399 overload_list_add_symbol (sym, oload_name)
4406 /* Get the demangled name without parameters */
4407 char *sym_name = cplus_demangle (SYMBOL_NAME (sym), DMGL_ARM | DMGL_ANSI);
4410 sym_name = (char *) xmalloc (strlen (SYMBOL_NAME (sym)) + 1);
4411 strcpy (sym_name, SYMBOL_NAME (sym));
4414 /* skip symbols that cannot match */
4415 if (strcmp (sym_name, oload_name) != 0)
4418 /* If there is no type information, we can't do anything, so skip */
4419 if (SYMBOL_TYPE (sym) == NULL)
4422 /* skip any symbols that we've already considered. */
4423 for (i = 0; i < sym_return_val_index; ++i)
4424 if (!strcmp (SYMBOL_NAME (sym), SYMBOL_NAME (sym_return_val[i])))
4427 /* We have a match for an overload instance, so add SYM to the current list
4428 * of overload instances */
4429 if (sym_return_val_index + 3 > sym_return_val_size)
4431 newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *);
4432 sym_return_val = (struct symbol **) xrealloc ((char *) sym_return_val, newsize);
4434 sym_return_val[sym_return_val_index++] = sym;
4435 sym_return_val[sym_return_val_index] = NULL;
4440 /* Return a null-terminated list of pointers to function symbols that
4441 * match name of the supplied symbol FSYM.
4442 * This is used in finding all overloaded instances of a function name.
4443 * This has been modified from make_symbol_completion_list. */
4447 make_symbol_overload_list (fsym)
4448 struct symbol *fsym;
4450 register struct symbol *sym;
4451 register struct symtab *s;
4452 register struct partial_symtab *ps;
4453 register struct minimal_symbol *msymbol;
4454 register struct objfile *objfile;
4455 register struct block *b, *surrounding_static_block = 0;
4457 struct partial_symbol **psym;
4458 /* The name we are completing on. */
4459 char *oload_name = NULL;
4460 /* Length of name. */
4461 int oload_name_len = 0;
4463 /* Look for the symbol we are supposed to complete on.
4464 * FIXME: This should be language-specific. */
4466 oload_name = cplus_demangle (SYMBOL_NAME (fsym), DMGL_ARM | DMGL_ANSI);
4469 oload_name = (char *) xmalloc (strlen (SYMBOL_NAME (fsym)) + 1);
4470 strcpy (oload_name, SYMBOL_NAME (fsym));
4472 oload_name_len = strlen (oload_name);
4474 sym_return_val_size = 100;
4475 sym_return_val_index = 0;
4476 sym_return_val = (struct symbol **) xmalloc ((sym_return_val_size + 1) * sizeof (struct symbol *));
4477 sym_return_val[0] = NULL;
4479 /* Comment and #if 0 from Rajiv Mirani <mirani@cup.hp.com>.
4480 However, leaving #if 0's around is uncool. We need to figure out
4481 what this is really trying to do, decide whether we want that,
4482 and either fix it or delete it. --- Jim Blandy, Mar 1999 */
4484 /* ??? RM: What in hell is this? overload_list_add_symbol expects a symbol,
4485 * not a partial_symbol or a minimal_symbol. And it looks at the type field
4486 * of the symbol, and we don't know the type of minimal and partial symbols
4489 /* Look through the partial symtabs for all symbols which begin
4490 by matching OLOAD_NAME. Add each one that you find to the list. */
4492 ALL_PSYMTABS (objfile, ps)
4494 /* If the psymtab's been read in we'll get it when we search
4495 through the blockvector. */
4499 for (psym = objfile->global_psymbols.list + ps->globals_offset;
4500 psym < (objfile->global_psymbols.list + ps->globals_offset
4501 + ps->n_global_syms);
4504 /* If interrupted, then quit. */
4506 overload_list_add_symbol (*psym, oload_name);
4509 for (psym = objfile->static_psymbols.list + ps->statics_offset;
4510 psym < (objfile->static_psymbols.list + ps->statics_offset
4511 + ps->n_static_syms);
4515 overload_list_add_symbol (*psym, oload_name);
4519 /* At this point scan through the misc symbol vectors and add each
4520 symbol you find to the list. Eventually we want to ignore
4521 anything that isn't a text symbol (everything else will be
4522 handled by the psymtab code above). */
4524 ALL_MSYMBOLS (objfile, msymbol)
4527 overload_list_add_symbol (msymbol, oload_name);
4531 /* Search upwards from currently selected frame (so that we can
4532 complete on local vars. */
4534 for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
4536 if (!BLOCK_SUPERBLOCK (b))
4538 surrounding_static_block = b; /* For elimination of dups */
4541 /* Also catch fields of types defined in this places which match our
4542 text string. Only complete on types visible from current context. */
4544 for (i = 0; i < BLOCK_NSYMS (b); i++)
4546 sym = BLOCK_SYM (b, i);
4547 overload_list_add_symbol (sym, oload_name);
4551 /* Go through the symtabs and check the externs and statics for
4552 symbols which match. */
4554 ALL_SYMTABS (objfile, s)
4557 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
4558 for (i = 0; i < BLOCK_NSYMS (b); i++)
4560 sym = BLOCK_SYM (b, i);
4561 overload_list_add_symbol (sym, oload_name);
4565 ALL_SYMTABS (objfile, s)
4568 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
4569 /* Don't do this block twice. */
4570 if (b == surrounding_static_block)
4572 for (i = 0; i < BLOCK_NSYMS (b); i++)
4574 sym = BLOCK_SYM (b, i);
4575 overload_list_add_symbol (sym, oload_name);
4581 return (sym_return_val);
4584 /* End of overload resolution functions */
4588 _initialize_symtab ()
4590 add_info ("variables", variables_info,
4591 "All global and static variable names, or those matching REGEXP.");
4593 add_com ("whereis", class_info, variables_info,
4594 "All global and static variable names, or those matching REGEXP.");
4596 add_info ("functions", functions_info,
4597 "All function names, or those matching REGEXP.");
4599 /* FIXME: This command has at least the following problems:
4600 1. It prints builtin types (in a very strange and confusing fashion).
4601 2. It doesn't print right, e.g. with
4602 typedef struct foo *FOO
4603 type_print prints "FOO" when we want to make it (in this situation)
4604 print "struct foo *".
4605 I also think "ptype" or "whatis" is more likely to be useful (but if
4606 there is much disagreement "info types" can be fixed). */
4607 add_info ("types", types_info,
4608 "All type names, or those matching REGEXP.");
4611 add_info ("methods", methods_info,
4612 "All method names, or those matching REGEXP::REGEXP.\n\
4613 If the class qualifier is omitted, it is assumed to be the current scope.\n\
4614 If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
4617 add_info ("sources", sources_info,
4618 "Source files in the program.");
4620 add_com ("rbreak", class_breakpoint, rbreak_command,
4621 "Set a breakpoint for all functions matching REGEXP.");
4625 add_com ("lf", class_info, sources_info, "Source files in the program");
4626 add_com ("lg", class_info, variables_info,
4627 "All global and static variable names, or those matching REGEXP.");
4630 /* Initialize the one built-in type that isn't language dependent... */
4631 builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0,
4632 "<unknown type>", (struct objfile *) NULL);