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 (pc >= pst->textlow && pc < pst->texthigh)
401 struct minimal_symbol *msymbol;
402 struct partial_symtab *tpst;
404 /* An objfile that has its functions reordered might have
405 many partial symbol tables containing the PC, but
406 we want the partial symbol table that contains the
407 function containing the PC. */
408 if (!(objfile->flags & OBJF_REORDERED) &&
409 section == 0) /* can't validate section this way */
412 msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
416 for (tpst = pst; tpst != NULL; tpst = tpst->next)
418 if (pc >= tpst->textlow && pc < tpst->texthigh)
420 struct partial_symbol *p;
422 p = find_pc_sect_psymbol (tpst, pc, section);
424 && SYMBOL_VALUE_ADDRESS (p)
425 == SYMBOL_VALUE_ADDRESS (msymbol))
435 /* Find which partial symtab contains PC. Return 0 if none.
436 Backward compatibility, no section */
438 struct partial_symtab *
442 return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc));
445 /* Find which partial symbol within a psymtab matches PC and SECTION.
446 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
448 struct partial_symbol *
449 find_pc_sect_psymbol (psymtab, pc, section)
450 struct partial_symtab *psymtab;
454 struct partial_symbol *best = NULL, *p, **pp;
458 psymtab = find_pc_sect_psymtab (pc, section);
462 /* Cope with programs that start at address 0 */
463 best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0;
465 /* Search the global symbols as well as the static symbols, so that
466 find_pc_partial_function doesn't use a minimal symbol and thus
467 cache a bad endaddr. */
468 for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset;
469 (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset)
470 < psymtab->n_global_syms);
474 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
475 && SYMBOL_CLASS (p) == LOC_BLOCK
476 && pc >= SYMBOL_VALUE_ADDRESS (p)
477 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
478 || (psymtab->textlow == 0
479 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
481 if (section) /* match on a specific section */
483 fixup_psymbol_section (p, psymtab->objfile);
484 if (SYMBOL_BFD_SECTION (p) != section)
487 best_pc = SYMBOL_VALUE_ADDRESS (p);
492 for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset;
493 (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset)
494 < psymtab->n_static_syms);
498 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
499 && SYMBOL_CLASS (p) == LOC_BLOCK
500 && pc >= SYMBOL_VALUE_ADDRESS (p)
501 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
502 || (psymtab->textlow == 0
503 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
505 if (section) /* match on a specific section */
507 fixup_psymbol_section (p, psymtab->objfile);
508 if (SYMBOL_BFD_SECTION (p) != section)
511 best_pc = SYMBOL_VALUE_ADDRESS (p);
519 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
520 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
522 struct partial_symbol *
523 find_pc_psymbol (psymtab, pc)
524 struct partial_symtab *psymtab;
527 return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc));
530 /* Debug symbols usually don't have section information. We need to dig that
531 out of the minimal symbols and stash that in the debug symbol. */
534 fixup_section (ginfo, objfile)
535 struct general_symbol_info *ginfo;
536 struct objfile *objfile;
538 struct minimal_symbol *msym;
539 msym = lookup_minimal_symbol (ginfo->name, NULL, objfile);
542 ginfo->bfd_section = SYMBOL_BFD_SECTION (msym);
546 fixup_symbol_section (sym, objfile)
548 struct objfile *objfile;
553 if (SYMBOL_BFD_SECTION (sym))
556 fixup_section (&sym->ginfo, objfile);
561 static struct partial_symbol *
562 fixup_psymbol_section (psym, objfile)
563 struct partial_symbol *psym;
564 struct objfile *objfile;
569 if (SYMBOL_BFD_SECTION (psym))
572 fixup_section (&psym->ginfo, objfile);
577 /* Find the definition for a specified symbol name NAME
578 in namespace NAMESPACE, visible from lexical block BLOCK.
579 Returns the struct symbol pointer, or zero if no symbol is found.
580 If SYMTAB is non-NULL, store the symbol table in which the
581 symbol was found there, or NULL if not found.
582 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
583 NAME is a field of the current implied argument `this'. If so set
584 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
585 BLOCK_FOUND is set to the block in which NAME is found (in the case of
586 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
588 /* This function has a bunch of loops in it and it would seem to be
589 attractive to put in some QUIT's (though I'm not really sure
590 whether it can run long enough to be really important). But there
591 are a few calls for which it would appear to be bad news to quit
592 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
593 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
594 code below which can error(), but that probably doesn't affect
595 these calls since they are looking for a known variable and thus
596 can probably assume it will never hit the C++ code). */
599 lookup_symbol (name, block, namespace, is_a_field_of_this, symtab)
601 register const struct block *block;
602 const namespace_enum namespace;
603 int *is_a_field_of_this;
604 struct symtab **symtab;
606 register struct symbol *sym;
607 register struct symtab *s = NULL;
608 register struct partial_symtab *ps;
609 struct blockvector *bv;
610 register struct objfile *objfile = NULL;
611 register struct block *b;
612 register struct minimal_symbol *msymbol;
614 /* Search specified block and its superiors. */
618 sym = lookup_block_symbol (block, name, namespace);
624 /* Search the list of symtabs for one which contains the
625 address of the start of this block. */
626 ALL_SYMTABS (objfile, s)
628 bv = BLOCKVECTOR (s);
629 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
630 if (BLOCK_START (b) <= BLOCK_START (block)
631 && BLOCK_END (b) > BLOCK_START (block))
638 return fixup_symbol_section (sym, objfile);
640 block = BLOCK_SUPERBLOCK (block);
643 /* FIXME: this code is never executed--block is always NULL at this
644 point. What is it trying to do, anyway? We already should have
645 checked the STATIC_BLOCK above (it is the superblock of top-level
646 blocks). Why is VAR_NAMESPACE special-cased? */
647 /* Don't need to mess with the psymtabs; if we have a block,
648 that file is read in. If we don't, then we deal later with
649 all the psymtab stuff that needs checking. */
650 /* Note (RT): The following never-executed code looks unnecessary to me also.
651 * If we change the code to use the original (passed-in)
652 * value of 'block', we could cause it to execute, but then what
653 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
654 * 'block' was already searched by the above code. And the STATIC_BLOCK's
655 * of *other* symtabs (those files not containing 'block' lexically)
656 * should not contain 'block' address-wise. So we wouldn't expect this
657 * code to find any 'sym''s that were not found above. I vote for
658 * deleting the following paragraph of code.
660 if (namespace == VAR_NAMESPACE && block != NULL)
663 /* Find the right symtab. */
664 ALL_SYMTABS (objfile, s)
666 bv = BLOCKVECTOR (s);
667 b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
668 if (BLOCK_START (b) <= BLOCK_START (block)
669 && BLOCK_END (b) > BLOCK_START (block))
671 sym = lookup_block_symbol (b, name, VAR_NAMESPACE);
677 return fixup_symbol_section (sym, objfile);
684 /* C++: If requested to do so by the caller,
685 check to see if NAME is a field of `this'. */
686 if (is_a_field_of_this)
688 struct value *v = value_of_this (0);
690 *is_a_field_of_this = 0;
691 if (v && check_field (v, name))
693 *is_a_field_of_this = 1;
700 /* Now search all global blocks. Do the symtab's first, then
701 check the psymtab's. If a psymtab indicates the existence
702 of the desired name as a global, then do psymtab-to-symtab
703 conversion on the fly and return the found symbol. */
705 ALL_SYMTABS (objfile, s)
707 bv = BLOCKVECTOR (s);
708 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
709 sym = lookup_block_symbol (block, name, namespace);
715 return fixup_symbol_section (sym, objfile);
721 /* Check for the possibility of the symbol being a function or
722 a mangled variable that is stored in one of the minimal symbol tables.
723 Eventually, all global symbols might be resolved in this way. */
725 if (namespace == VAR_NAMESPACE)
727 msymbol = lookup_minimal_symbol (name, NULL, NULL);
730 s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol),
731 SYMBOL_BFD_SECTION (msymbol));
734 /* This is a function which has a symtab for its address. */
735 bv = BLOCKVECTOR (s);
736 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
737 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
739 /* We kept static functions in minimal symbol table as well as
740 in static scope. We want to find them in the symbol table. */
743 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
744 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
748 /* sym == 0 if symbol was found in the minimal symbol table
749 but not in the symtab.
750 Return 0 to use the msymbol definition of "foo_".
752 This happens for Fortran "foo_" symbols,
753 which are "foo" in the symtab.
755 This can also happen if "asm" is used to make a
756 regular symbol but not a debugging symbol, e.g.
763 return fixup_symbol_section (sym, objfile);
765 else if (MSYMBOL_TYPE (msymbol) != mst_text
766 && MSYMBOL_TYPE (msymbol) != mst_file_text
767 && !STREQ (name, SYMBOL_NAME (msymbol)))
769 /* This is a mangled variable, look it up by its
771 return lookup_symbol (SYMBOL_NAME (msymbol), block,
772 namespace, is_a_field_of_this, symtab);
774 /* There are no debug symbols for this file, or we are looking
775 for an unmangled variable.
776 Try to find a matching static symbol below. */
782 ALL_PSYMTABS (objfile, ps)
784 if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace))
786 s = PSYMTAB_TO_SYMTAB (ps);
787 bv = BLOCKVECTOR (s);
788 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
789 sym = lookup_block_symbol (block, name, namespace);
792 /* This shouldn't be necessary, but as a last resort
793 * try looking in the statics even though the psymtab
794 * claimed the symbol was global. It's possible that
795 * the psymtab gets it wrong in some cases.
797 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
798 sym = lookup_block_symbol (block, name, namespace);
800 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
801 %s may be an inlined function, or may be a template function\n\
802 (if a template, try specifying an instantiation: %s<type>).",
803 name, ps->filename, name, name);
807 return fixup_symbol_section (sym, objfile);
811 /* Now search all static file-level symbols.
812 Not strictly correct, but more useful than an error.
813 Do the symtabs first, then check the psymtabs.
814 If a psymtab indicates the existence
815 of the desired name as a file-level static, then do psymtab-to-symtab
816 conversion on the fly and return the found symbol. */
818 ALL_SYMTABS (objfile, s)
820 bv = BLOCKVECTOR (s);
821 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
822 sym = lookup_block_symbol (block, name, namespace);
828 return fixup_symbol_section (sym, objfile);
832 ALL_PSYMTABS (objfile, ps)
834 if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace))
836 s = PSYMTAB_TO_SYMTAB (ps);
837 bv = BLOCKVECTOR (s);
838 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
839 sym = lookup_block_symbol (block, name, namespace);
842 /* This shouldn't be necessary, but as a last resort
843 * try looking in the globals even though the psymtab
844 * claimed the symbol was static. It's possible that
845 * the psymtab gets it wrong in some cases.
847 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
848 sym = lookup_block_symbol (block, name, namespace);
850 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
851 %s may be an inlined function, or may be a template function\n\
852 (if a template, try specifying an instantiation: %s<type>).",
853 name, ps->filename, name, name);
857 return fixup_symbol_section (sym, objfile);
863 /* Check for the possibility of the symbol being a function or
864 a global variable that is stored in one of the minimal symbol tables.
865 The "minimal symbol table" is built from linker-supplied info.
867 RT: I moved this check to last, after the complete search of
868 the global (p)symtab's and static (p)symtab's. For HP-generated
869 symbol tables, this check was causing a premature exit from
870 lookup_symbol with NULL return, and thus messing up symbol lookups
871 of things like "c::f". It seems to me a check of the minimal
872 symbol table ought to be a last resort in any case. I'm vaguely
873 worried about the comment below which talks about FORTRAN routines "foo_"
874 though... is it saying we need to do the "minsym" check before
875 the static check in this case?
878 if (namespace == VAR_NAMESPACE)
880 msymbol = lookup_minimal_symbol (name, NULL, NULL);
883 /* OK, we found a minimal symbol in spite of not
884 * finding any symbol. There are various possible
885 * explanations for this. One possibility is the symbol
886 * exists in code not compiled -g. Another possibility
887 * is that the 'psymtab' isn't doing its job.
888 * A third possibility, related to #2, is that we were confused
889 * by name-mangling. For instance, maybe the psymtab isn't
890 * doing its job because it only know about demangled
891 * names, but we were given a mangled name...
894 /* We first use the address in the msymbol to try to
895 * locate the appropriate symtab. Note that find_pc_symtab()
896 * has a side-effect of doing psymtab-to-symtab expansion,
897 * for the found symtab.
899 s = find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol));
902 bv = BLOCKVECTOR (s);
903 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
904 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
906 /* We kept static functions in minimal symbol table as well as
907 in static scope. We want to find them in the symbol table. */
910 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
911 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
914 /* If we found one, return it */
922 /* If we get here with sym == 0, the symbol was
923 found in the minimal symbol table
924 but not in the symtab.
925 Fall through and return 0 to use the msymbol
926 definition of "foo_".
927 (Note that outer code generally follows up a call
928 to this routine with a call to lookup_minimal_symbol(),
929 so a 0 return means we'll just flow into that other routine).
931 This happens for Fortran "foo_" symbols,
932 which are "foo" in the symtab.
934 This can also happen if "asm" is used to make a
935 regular symbol but not a debugging symbol, e.g.
941 /* If the lookup-by-address fails, try repeating the
942 * entire lookup process with the symbol name from
943 * the msymbol (if different from the original symbol name).
945 else if (MSYMBOL_TYPE (msymbol) != mst_text
946 && MSYMBOL_TYPE (msymbol) != mst_file_text
947 && !STREQ (name, SYMBOL_NAME (msymbol)))
949 return lookup_symbol (SYMBOL_NAME (msymbol), block,
950 namespace, is_a_field_of_this, symtab);
962 /* Look, in partial_symtab PST, for symbol NAME. Check the global
963 symbols if GLOBAL, the static symbols if not */
965 static struct partial_symbol *
966 lookup_partial_symbol (pst, name, global, namespace)
967 struct partial_symtab *pst;
970 namespace_enum namespace;
972 struct partial_symbol **start, **psym;
973 struct partial_symbol **top, **bottom, **center;
974 int length = (global ? pst->n_global_syms : pst->n_static_syms);
975 int do_linear_search = 1;
983 pst->objfile->global_psymbols.list + pst->globals_offset :
984 pst->objfile->static_psymbols.list + pst->statics_offset);
986 if (global) /* This means we can use a binary search. */
988 do_linear_search = 0;
990 /* Binary search. This search is guaranteed to end with center
991 pointing at the earliest partial symbol with the correct
992 name. At that point *all* partial symbols with that name
993 will be checked against the correct namespace. */
996 top = start + length - 1;
999 center = bottom + (top - bottom) / 2;
1000 if (!(center < top))
1002 if (!do_linear_search
1003 && (SYMBOL_LANGUAGE (*center) == language_cplus
1004 || SYMBOL_LANGUAGE (*center) == language_java
1007 do_linear_search = 1;
1009 if (STRCMP (SYMBOL_NAME (*center), name) >= 0)
1015 bottom = center + 1;
1018 if (!(top == bottom))
1020 while (STREQ (SYMBOL_NAME (*top), name))
1022 if (SYMBOL_NAMESPACE (*top) == namespace)
1030 /* Can't use a binary search or else we found during the binary search that
1031 we should also do a linear search. */
1033 if (do_linear_search)
1035 for (psym = start; psym < start + length; psym++)
1037 if (namespace == SYMBOL_NAMESPACE (*psym))
1039 if (SYMBOL_MATCHES_NAME (*psym, name))
1050 /* Look up a type named NAME in the struct_namespace. The type returned
1051 must not be opaque -- i.e., must have at least one field defined
1053 This code was modelled on lookup_symbol -- the parts not relevant to looking
1054 up types were just left out. In particular it's assumed here that types
1055 are available in struct_namespace and only at file-static or global blocks. */
1059 lookup_transparent_type (name)
1062 register struct symbol *sym;
1063 register struct symtab *s = NULL;
1064 register struct partial_symtab *ps;
1065 struct blockvector *bv;
1066 register struct objfile *objfile;
1067 register struct block *block;
1069 /* Now search all the global symbols. Do the symtab's first, then
1070 check the psymtab's. If a psymtab indicates the existence
1071 of the desired name as a global, then do psymtab-to-symtab
1072 conversion on the fly and return the found symbol. */
1074 ALL_SYMTABS (objfile, s)
1076 bv = BLOCKVECTOR (s);
1077 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1078 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1079 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1081 return SYMBOL_TYPE (sym);
1085 ALL_PSYMTABS (objfile, ps)
1087 if (!ps->readin && lookup_partial_symbol (ps, name, 1, STRUCT_NAMESPACE))
1089 s = PSYMTAB_TO_SYMTAB (ps);
1090 bv = BLOCKVECTOR (s);
1091 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1092 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1095 /* This shouldn't be necessary, but as a last resort
1096 * try looking in the statics even though the psymtab
1097 * claimed the symbol was global. It's possible that
1098 * the psymtab gets it wrong in some cases.
1100 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1101 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1103 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
1104 %s may be an inlined function, or may be a template function\n\
1105 (if a template, try specifying an instantiation: %s<type>).",
1106 name, ps->filename, name, name);
1108 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1109 return SYMBOL_TYPE (sym);
1113 /* Now search the static file-level symbols.
1114 Not strictly correct, but more useful than an error.
1115 Do the symtab's first, then
1116 check the psymtab's. If a psymtab indicates the existence
1117 of the desired name as a file-level static, then do psymtab-to-symtab
1118 conversion on the fly and return the found symbol.
1121 ALL_SYMTABS (objfile, s)
1123 bv = BLOCKVECTOR (s);
1124 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1125 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1126 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1128 return SYMBOL_TYPE (sym);
1132 ALL_PSYMTABS (objfile, ps)
1134 if (!ps->readin && lookup_partial_symbol (ps, name, 0, STRUCT_NAMESPACE))
1136 s = PSYMTAB_TO_SYMTAB (ps);
1137 bv = BLOCKVECTOR (s);
1138 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1139 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1142 /* This shouldn't be necessary, but as a last resort
1143 * try looking in the globals even though the psymtab
1144 * claimed the symbol was static. It's possible that
1145 * the psymtab gets it wrong in some cases.
1147 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1148 sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
1150 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
1151 %s may be an inlined function, or may be a template function\n\
1152 (if a template, try specifying an instantiation: %s<type>).",
1153 name, ps->filename, name, name);
1155 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1156 return SYMBOL_TYPE (sym);
1159 return (struct type *) 0;
1163 /* Find the psymtab containing main(). */
1164 /* FIXME: What about languages without main() or specially linked
1165 executables that have no main() ? */
1167 struct partial_symtab *
1168 find_main_psymtab ()
1170 register struct partial_symtab *pst;
1171 register struct objfile *objfile;
1173 ALL_PSYMTABS (objfile, pst)
1175 if (lookup_partial_symbol (pst, "main", 1, VAR_NAMESPACE))
1183 /* Search BLOCK for symbol NAME in NAMESPACE.
1185 Note that if NAME is the demangled form of a C++ symbol, we will fail
1186 to find a match during the binary search of the non-encoded names, but
1187 for now we don't worry about the slight inefficiency of looking for
1188 a match we'll never find, since it will go pretty quick. Once the
1189 binary search terminates, we drop through and do a straight linear
1190 search on the symbols. Each symbol which is marked as being a C++
1191 symbol (language_cplus set) has both the encoded and non-encoded names
1192 tested for a match. */
1195 lookup_block_symbol (block, name, namespace)
1196 register const struct block *block;
1198 const namespace_enum namespace;
1200 register int bot, top, inc;
1201 register struct symbol *sym;
1202 register struct symbol *sym_found = NULL;
1203 register int do_linear_search = 1;
1205 /* If the blocks's symbols were sorted, start with a binary search. */
1207 if (BLOCK_SHOULD_SORT (block))
1209 /* Reset the linear search flag so if the binary search fails, we
1210 won't do the linear search once unless we find some reason to
1211 do so, such as finding a C++ symbol during the binary search.
1212 Note that for C++ modules, ALL the symbols in a block should
1213 end up marked as C++ symbols. */
1215 do_linear_search = 0;
1216 top = BLOCK_NSYMS (block);
1219 /* Advance BOT to not far before the first symbol whose name is NAME. */
1223 inc = (top - bot + 1);
1224 /* No need to keep binary searching for the last few bits worth. */
1229 inc = (inc >> 1) + bot;
1230 sym = BLOCK_SYM (block, inc);
1231 if (!do_linear_search
1232 && (SYMBOL_LANGUAGE (sym) == language_cplus
1233 || SYMBOL_LANGUAGE (sym) == language_java
1236 do_linear_search = 1;
1238 if (SYMBOL_NAME (sym)[0] < name[0])
1242 else if (SYMBOL_NAME (sym)[0] > name[0])
1246 else if (STRCMP (SYMBOL_NAME (sym), name) < 0)
1256 /* Now scan forward until we run out of symbols, find one whose
1257 name is greater than NAME, or find one we want. If there is
1258 more than one symbol with the right name and namespace, we
1259 return the first one; I believe it is now impossible for us
1260 to encounter two symbols with the same name and namespace
1261 here, because blocks containing argument symbols are no
1264 top = BLOCK_NSYMS (block);
1267 sym = BLOCK_SYM (block, bot);
1268 inc = SYMBOL_NAME (sym)[0] - name[0];
1271 inc = STRCMP (SYMBOL_NAME (sym), name);
1273 if (inc == 0 && SYMBOL_NAMESPACE (sym) == namespace)
1285 /* Here if block isn't sorted, or we fail to find a match during the
1286 binary search above. If during the binary search above, we find a
1287 symbol which is a C++ symbol, then we have re-enabled the linear
1288 search flag which was reset when starting the binary search.
1290 This loop is equivalent to the loop above, but hacked greatly for speed.
1292 Note that parameter symbols do not always show up last in the
1293 list; this loop makes sure to take anything else other than
1294 parameter symbols first; it only uses parameter symbols as a
1295 last resort. Note that this only takes up extra computation
1298 if (do_linear_search)
1300 top = BLOCK_NSYMS (block);
1304 sym = BLOCK_SYM (block, bot);
1305 if (SYMBOL_NAMESPACE (sym) == namespace &&
1306 SYMBOL_MATCHES_NAME (sym, name))
1308 /* If SYM has aliases, then use any alias that is active
1309 at the current PC. If no alias is active at the current
1310 PC, then use the main symbol.
1312 ?!? Is checking the current pc correct? Is this routine
1313 ever called to look up a symbol from another context?
1315 FIXME: No, it's not correct. If someone sets a
1316 conditional breakpoint at an address, then the
1317 breakpoint's `struct expression' should refer to the
1318 `struct symbol' appropriate for the breakpoint's
1319 address, which may not be the PC.
1321 Even if it were never called from another context,
1322 it's totally bizarre for lookup_symbol's behavior to
1323 depend on the value of the inferior's current PC. We
1324 should pass in the appropriate PC as well as the
1325 block. The interface to lookup_symbol should change
1326 to require the caller to provide a PC. */
1328 if (SYMBOL_ALIASES (sym))
1329 sym = find_active_alias (sym, read_pc ());
1332 if (SYMBOL_CLASS (sym) != LOC_ARG &&
1333 SYMBOL_CLASS (sym) != LOC_LOCAL_ARG &&
1334 SYMBOL_CLASS (sym) != LOC_REF_ARG &&
1335 SYMBOL_CLASS (sym) != LOC_REGPARM &&
1336 SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR &&
1337 SYMBOL_CLASS (sym) != LOC_BASEREG_ARG)
1345 return (sym_found); /* Will be NULL if not found. */
1348 /* Given a main symbol SYM and ADDR, search through the alias
1349 list to determine if an alias is active at ADDR and return
1352 If no alias is active, then return SYM. */
1354 static struct symbol *
1355 find_active_alias (sym, addr)
1359 struct range_list *r;
1360 struct alias_list *aliases;
1362 /* If we have aliases, check them first. */
1363 aliases = SYMBOL_ALIASES (sym);
1367 if (!SYMBOL_RANGES (aliases->sym))
1368 return aliases->sym;
1369 for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next)
1371 if (r->start <= addr && r->end > addr)
1372 return aliases->sym;
1374 aliases = aliases->next;
1377 /* Nothing found, return the main symbol. */
1382 /* Return the symbol for the function which contains a specified
1383 lexical block, described by a struct block BL. */
1389 while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0)
1390 bl = BLOCK_SUPERBLOCK (bl);
1392 return BLOCK_FUNCTION (bl);
1395 /* Find the symtab associated with PC and SECTION. Look through the
1396 psymtabs and read in another symtab if necessary. */
1399 find_pc_sect_symtab (pc, section)
1403 register struct block *b;
1404 struct blockvector *bv;
1405 register struct symtab *s = NULL;
1406 register struct symtab *best_s = NULL;
1407 register struct partial_symtab *ps;
1408 register struct objfile *objfile;
1409 CORE_ADDR distance = 0;
1411 /* Search all symtabs for the one whose file contains our address, and which
1412 is the smallest of all the ones containing the address. This is designed
1413 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1414 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1415 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1417 This happens for native ecoff format, where code from included files
1418 gets its own symtab. The symtab for the included file should have
1419 been read in already via the dependency mechanism.
1420 It might be swifter to create several symtabs with the same name
1421 like xcoff does (I'm not sure).
1423 It also happens for objfiles that have their functions reordered.
1424 For these, the symtab we are looking for is not necessarily read in. */
1426 ALL_SYMTABS (objfile, s)
1428 bv = BLOCKVECTOR (s);
1429 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1431 if (BLOCK_START (b) <= pc
1432 && BLOCK_END (b) > pc
1434 || BLOCK_END (b) - BLOCK_START (b) < distance))
1436 /* For an objfile that has its functions reordered,
1437 find_pc_psymtab will find the proper partial symbol table
1438 and we simply return its corresponding symtab. */
1439 /* In order to better support objfiles that contain both
1440 stabs and coff debugging info, we continue on if a psymtab
1442 if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs)
1444 ps = find_pc_sect_psymtab (pc, section);
1446 return PSYMTAB_TO_SYMTAB (ps);
1452 for (i = 0; i < b->nsyms; i++)
1454 fixup_symbol_section (b->sym[i], objfile);
1455 if (section == SYMBOL_BFD_SECTION (b->sym[i]))
1459 continue; /* no symbol in this symtab matches section */
1461 distance = BLOCK_END (b) - BLOCK_START (b);
1470 ps = find_pc_sect_psymtab (pc, section);
1474 /* Might want to error() here (in case symtab is corrupt and
1475 will cause a core dump), but maybe we can successfully
1476 continue, so let's not. */
1477 /* FIXME-32x64: assumes pc fits in a long */
1479 (Internal error: pc 0x%lx in read in psymtab, but not in symtab.)\n",
1480 (unsigned long) pc);
1481 s = PSYMTAB_TO_SYMTAB (ps);
1486 /* Find the symtab associated with PC. Look through the psymtabs and
1487 read in another symtab if necessary. Backward compatibility, no section */
1493 return find_pc_sect_symtab (pc, find_pc_mapped_section (pc));
1499 /* Find the closest symbol value (of any sort -- function or variable)
1500 for a given address value. Slow but complete. (currently unused,
1501 mainly because it is too slow. We could fix it if each symtab and
1502 psymtab had contained in it the addresses ranges of each of its
1503 sections, which also would be required to make things like "info
1504 line *0x2345" cause psymtabs to be converted to symtabs). */
1507 find_addr_symbol (addr, symtabp, symaddrp)
1509 struct symtab **symtabp;
1510 CORE_ADDR *symaddrp;
1512 struct symtab *symtab, *best_symtab;
1513 struct objfile *objfile;
1514 register int bot, top;
1515 register struct symbol *sym;
1516 register CORE_ADDR sym_addr;
1517 struct block *block;
1520 /* Info on best symbol seen so far */
1522 register CORE_ADDR best_sym_addr = 0;
1523 struct symbol *best_sym = 0;
1525 /* FIXME -- we should pull in all the psymtabs, too! */
1526 ALL_SYMTABS (objfile, symtab)
1528 /* Search the global and static blocks in this symtab for
1529 the closest symbol-address to the desired address. */
1531 for (blocknum = GLOBAL_BLOCK; blocknum <= STATIC_BLOCK; blocknum++)
1534 block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), blocknum);
1535 top = BLOCK_NSYMS (block);
1536 for (bot = 0; bot < top; bot++)
1538 sym = BLOCK_SYM (block, bot);
1539 switch (SYMBOL_CLASS (sym))
1543 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1547 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1548 /* An indirect symbol really lives at *sym_addr,
1549 * so an indirection needs to be done.
1550 * However, I am leaving this commented out because it's
1551 * expensive, and it's possible that symbolization
1552 * could be done without an active process (in
1553 * case this read_memory will fail). RT
1554 sym_addr = read_memory_unsigned_integer
1555 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1560 sym_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
1567 if (sym_addr <= addr)
1568 if (sym_addr > best_sym_addr)
1570 /* Quit if we found an exact match. */
1572 best_sym_addr = sym_addr;
1573 best_symtab = symtab;
1574 if (sym_addr == addr)
1583 *symtabp = best_symtab;
1585 *symaddrp = best_sym_addr;
1590 /* Find the source file and line number for a given PC value and section.
1591 Return a structure containing a symtab pointer, a line number,
1592 and a pc range for the entire source line.
1593 The value's .pc field is NOT the specified pc.
1594 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1595 use the line that ends there. Otherwise, in that case, the line
1596 that begins there is used. */
1598 /* The big complication here is that a line may start in one file, and end just
1599 before the start of another file. This usually occurs when you #include
1600 code in the middle of a subroutine. To properly find the end of a line's PC
1601 range, we must search all symtabs associated with this compilation unit, and
1602 find the one whose first PC is closer than that of the next line in this
1605 /* If it's worth the effort, we could be using a binary search. */
1607 struct symtab_and_line
1608 find_pc_sect_line (pc, section, notcurrent)
1610 struct sec *section;
1614 register struct linetable *l;
1617 register struct linetable_entry *item;
1618 struct symtab_and_line val;
1619 struct blockvector *bv;
1620 struct minimal_symbol *msymbol;
1621 struct minimal_symbol *mfunsym;
1623 /* Info on best line seen so far, and where it starts, and its file. */
1625 struct linetable_entry *best = NULL;
1626 CORE_ADDR best_end = 0;
1627 struct symtab *best_symtab = 0;
1629 /* Store here the first line number
1630 of a file which contains the line at the smallest pc after PC.
1631 If we don't find a line whose range contains PC,
1632 we will use a line one less than this,
1633 with a range from the start of that file to the first line's pc. */
1634 struct linetable_entry *alt = NULL;
1635 struct symtab *alt_symtab = 0;
1637 /* Info on best line seen in this file. */
1639 struct linetable_entry *prev;
1641 /* If this pc is not from the current frame,
1642 it is the address of the end of a call instruction.
1643 Quite likely that is the start of the following statement.
1644 But what we want is the statement containing the instruction.
1645 Fudge the pc to make sure we get that. */
1647 INIT_SAL (&val); /* initialize to zeroes */
1652 /* elz: added this because this function returned the wrong
1653 information if the pc belongs to a stub (import/export)
1654 to call a shlib function. This stub would be anywhere between
1655 two functions in the target, and the line info was erroneously
1656 taken to be the one of the line before the pc.
1658 /* RT: Further explanation:
1660 * We have stubs (trampolines) inserted between procedures.
1662 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1663 * exists in the main image.
1665 * In the minimal symbol table, we have a bunch of symbols
1666 * sorted by start address. The stubs are marked as "trampoline",
1667 * the others appear as text. E.g.:
1669 * Minimal symbol table for main image
1670 * main: code for main (text symbol)
1671 * shr1: stub (trampoline symbol)
1672 * foo: code for foo (text symbol)
1674 * Minimal symbol table for "shr1" image:
1676 * shr1: code for shr1 (text symbol)
1679 * So the code below is trying to detect if we are in the stub
1680 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1681 * and if found, do the symbolization from the real-code address
1682 * rather than the stub address.
1684 * Assumptions being made about the minimal symbol table:
1685 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1686 * if we're really in the trampoline. If we're beyond it (say
1687 * we're in "foo" in the above example), it'll have a closer
1688 * symbol (the "foo" text symbol for example) and will not
1689 * return the trampoline.
1690 * 2. lookup_minimal_symbol_text() will find a real text symbol
1691 * corresponding to the trampoline, and whose address will
1692 * be different than the trampoline address. I put in a sanity
1693 * check for the address being the same, to avoid an
1694 * infinite recursion.
1696 msymbol = lookup_minimal_symbol_by_pc (pc);
1697 if (msymbol != NULL)
1698 if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline)
1700 mfunsym = lookup_minimal_symbol_text (SYMBOL_NAME (msymbol), NULL, NULL);
1701 if (mfunsym == NULL)
1702 /* I eliminated this warning since it is coming out
1703 * in the following situation:
1704 * gdb shmain // test program with shared libraries
1705 * (gdb) break shr1 // function in shared lib
1706 * Warning: In stub for ...
1707 * In the above situation, the shared lib is not loaded yet,
1708 * so of course we can't find the real func/line info,
1709 * but the "break" still works, and the warning is annoying.
1710 * So I commented out the warning. RT */
1711 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1713 else if (SYMBOL_VALUE (mfunsym) == SYMBOL_VALUE (msymbol))
1714 /* Avoid infinite recursion */
1715 /* See above comment about why warning is commented out */
1716 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1719 return find_pc_line (SYMBOL_VALUE (mfunsym), 0);
1723 s = find_pc_sect_symtab (pc, section);
1726 /* if no symbol information, return previous pc */
1733 bv = BLOCKVECTOR (s);
1735 /* Look at all the symtabs that share this blockvector.
1736 They all have the same apriori range, that we found was right;
1737 but they have different line tables. */
1739 for (; s && BLOCKVECTOR (s) == bv; s = s->next)
1741 /* Find the best line in this symtab. */
1748 /* I think len can be zero if the symtab lacks line numbers
1749 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1750 I'm not sure which, and maybe it depends on the symbol
1756 item = l->item; /* Get first line info */
1758 /* Is this file's first line closer than the first lines of other files?
1759 If so, record this file, and its first line, as best alternate. */
1760 if (item->pc > pc && (!alt || item->pc < alt->pc))
1766 for (i = 0; i < len; i++, item++)
1768 /* Leave prev pointing to the linetable entry for the last line
1769 that started at or before PC. */
1776 /* At this point, prev points at the line whose start addr is <= pc, and
1777 item points at the next line. If we ran off the end of the linetable
1778 (pc >= start of the last line), then prev == item. If pc < start of
1779 the first line, prev will not be set. */
1781 /* Is this file's best line closer than the best in the other files?
1782 If so, record this file, and its best line, as best so far. */
1784 if (prev && (!best || prev->pc > best->pc))
1788 /* If another line is in the linetable, and its PC is closer
1789 than the best_end we currently have, take it as best_end. */
1790 if (i < len && (best_end == 0 || best_end > item->pc))
1791 best_end = item->pc;
1798 { /* If we didn't find any line # info, just
1804 val.symtab = alt_symtab;
1805 val.line = alt->line - 1;
1807 /* Don't return line 0, that means that we didn't find the line. */
1811 val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1817 val.symtab = best_symtab;
1818 val.line = best->line;
1820 if (best_end && (!alt || best_end < alt->pc))
1825 val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1827 val.section = section;
1831 /* Backward compatibility (no section) */
1833 struct symtab_and_line
1834 find_pc_line (pc, notcurrent)
1840 section = find_pc_overlay (pc);
1841 if (pc_in_unmapped_range (pc, section))
1842 pc = overlay_mapped_address (pc, section);
1843 return find_pc_sect_line (pc, section, notcurrent);
1847 static struct symtab *find_line_symtab PARAMS ((struct symtab *, int,
1850 /* Find line number LINE in any symtab whose name is the same as
1853 If found, return the symtab that contains the linetable in which it was
1854 found, set *INDEX to the index in the linetable of the best entry
1855 found, and set *EXACT_MATCH nonzero if the value returned is an
1858 If not found, return NULL. */
1860 static struct symtab *
1861 find_line_symtab (symtab, line, index, exact_match)
1862 struct symtab *symtab;
1869 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1873 struct linetable *best_linetable;
1874 struct symtab *best_symtab;
1876 /* First try looking it up in the given symtab. */
1877 best_linetable = LINETABLE (symtab);
1878 best_symtab = symtab;
1879 best_index = find_line_common (best_linetable, line, &exact);
1880 if (best_index < 0 || !exact)
1882 /* Didn't find an exact match. So we better keep looking for
1883 another symtab with the same name. In the case of xcoff,
1884 multiple csects for one source file (produced by IBM's FORTRAN
1885 compiler) produce multiple symtabs (this is unavoidable
1886 assuming csects can be at arbitrary places in memory and that
1887 the GLOBAL_BLOCK of a symtab has a begin and end address). */
1889 /* BEST is the smallest linenumber > LINE so far seen,
1890 or 0 if none has been seen so far.
1891 BEST_INDEX and BEST_LINETABLE identify the item for it. */
1894 struct objfile *objfile;
1897 if (best_index >= 0)
1898 best = best_linetable->item[best_index].line;
1902 ALL_SYMTABS (objfile, s)
1904 struct linetable *l;
1907 if (!STREQ (symtab->filename, s->filename))
1910 ind = find_line_common (l, line, &exact);
1920 if (best == 0 || l->item[ind].line < best)
1922 best = l->item[ind].line;
1935 *index = best_index;
1937 *exact_match = exact;
1942 /* Set the PC value for a given source file and line number and return true.
1943 Returns zero for invalid line number (and sets the PC to 0).
1944 The source file is specified with a struct symtab. */
1947 find_line_pc (symtab, line, pc)
1948 struct symtab *symtab;
1952 struct linetable *l;
1959 symtab = find_line_symtab (symtab, line, &ind, NULL);
1962 l = LINETABLE (symtab);
1963 *pc = l->item[ind].pc;
1970 /* Find the range of pc values in a line.
1971 Store the starting pc of the line into *STARTPTR
1972 and the ending pc (start of next line) into *ENDPTR.
1973 Returns 1 to indicate success.
1974 Returns 0 if could not find the specified line. */
1977 find_line_pc_range (sal, startptr, endptr)
1978 struct symtab_and_line sal;
1979 CORE_ADDR *startptr, *endptr;
1981 CORE_ADDR startaddr;
1982 struct symtab_and_line found_sal;
1985 if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr))
1988 /* This whole function is based on address. For example, if line 10 has
1989 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
1990 "info line *0x123" should say the line goes from 0x100 to 0x200
1991 and "info line *0x355" should say the line goes from 0x300 to 0x400.
1992 This also insures that we never give a range like "starts at 0x134
1993 and ends at 0x12c". */
1995 found_sal = find_pc_sect_line (startaddr, sal.section, 0);
1996 if (found_sal.line != sal.line)
1998 /* The specified line (sal) has zero bytes. */
1999 *startptr = found_sal.pc;
2000 *endptr = found_sal.pc;
2004 *startptr = found_sal.pc;
2005 *endptr = found_sal.end;
2010 /* Given a line table and a line number, return the index into the line
2011 table for the pc of the nearest line whose number is >= the specified one.
2012 Return -1 if none is found. The value is >= 0 if it is an index.
2014 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
2017 find_line_common (l, lineno, exact_match)
2018 register struct linetable *l;
2019 register int lineno;
2025 /* BEST is the smallest linenumber > LINENO so far seen,
2026 or 0 if none has been seen so far.
2027 BEST_INDEX identifies the item for it. */
2029 int best_index = -1;
2038 for (i = 0; i < len; i++)
2040 register struct linetable_entry *item = &(l->item[i]);
2042 if (item->line == lineno)
2044 /* Return the first (lowest address) entry which matches. */
2049 if (item->line > lineno && (best == 0 || item->line < best))
2056 /* If we got here, we didn't get an exact match. */
2063 find_pc_line_pc_range (pc, startptr, endptr)
2065 CORE_ADDR *startptr, *endptr;
2067 struct symtab_and_line sal;
2068 sal = find_pc_line (pc, 0);
2071 return sal.symtab != 0;
2074 /* Given a function symbol SYM, find the symtab and line for the start
2076 If the argument FUNFIRSTLINE is nonzero, we want the first line
2077 of real code inside the function. */
2079 static struct symtab_and_line
2080 find_function_start_sal PARAMS ((struct symbol * sym, int));
2082 static struct symtab_and_line
2083 find_function_start_sal (sym, funfirstline)
2088 struct symtab_and_line sal;
2090 pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
2091 fixup_symbol_section (sym, NULL);
2093 { /* skip "first line" of function (which is actually its prologue) */
2094 asection *section = SYMBOL_BFD_SECTION (sym);
2095 /* If function is in an unmapped overlay, use its unmapped LMA
2096 address, so that SKIP_PROLOGUE has something unique to work on */
2097 if (section_is_overlay (section) &&
2098 !section_is_mapped (section))
2099 pc = overlay_unmapped_address (pc, section);
2101 pc += FUNCTION_START_OFFSET;
2102 pc = SKIP_PROLOGUE (pc);
2104 /* For overlays, map pc back into its mapped VMA range */
2105 pc = overlay_mapped_address (pc, section);
2107 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2109 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2110 /* Convex: no need to suppress code on first line, if any */
2113 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2114 line is still part of the same function. */
2116 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end
2117 && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym)))
2119 /* First pc of next line */
2121 /* Recalculate the line number (might not be N+1). */
2122 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2130 /* If P is of the form "operator[ \t]+..." where `...' is
2131 some legitimate operator text, return a pointer to the
2132 beginning of the substring of the operator text.
2133 Otherwise, return "". */
2135 operator_chars (p, end)
2140 if (strncmp (p, "operator", 8))
2144 /* Don't get faked out by `operator' being part of a longer
2146 if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0')
2149 /* Allow some whitespace between `operator' and the operator symbol. */
2150 while (*p == ' ' || *p == '\t')
2153 /* Recognize 'operator TYPENAME'. */
2155 if (isalpha (*p) || *p == '_' || *p == '$')
2157 register char *q = p + 1;
2158 while (isalnum (*q) || *q == '_' || *q == '$')
2183 if (p[1] == '=' || p[1] == p[0])
2194 error ("`operator ()' must be specified without whitespace in `()'");
2199 error ("`operator ?:' must be specified without whitespace in `?:'");
2204 error ("`operator []' must be specified without whitespace in `[]'");
2208 error ("`operator %s' not supported", p);
2215 /* Return the number of methods described for TYPE, including the
2216 methods from types it derives from. This can't be done in the symbol
2217 reader because the type of the baseclass might still be stubbed
2218 when the definition of the derived class is parsed. */
2220 static int total_number_of_methods PARAMS ((struct type * type));
2223 total_number_of_methods (type)
2229 CHECK_TYPEDEF (type);
2230 if (TYPE_CPLUS_SPECIFIC (type) == NULL)
2232 count = TYPE_NFN_FIELDS_TOTAL (type);
2234 for (n = 0; n < TYPE_N_BASECLASSES (type); n++)
2235 count += total_number_of_methods (TYPE_BASECLASS (type, n));
2240 /* Recursive helper function for decode_line_1.
2241 Look for methods named NAME in type T.
2242 Return number of matches.
2243 Put matches in SYM_ARR, which should have been allocated with
2244 a size of total_number_of_methods (T) * sizeof (struct symbol *).
2245 Note that this function is g++ specific. */
2248 find_methods (t, name, sym_arr)
2251 struct symbol **sym_arr;
2255 struct symbol *sym_class;
2256 char *class_name = type_name_no_tag (t);
2258 /* Ignore this class if it doesn't have a name. This is ugly, but
2259 unless we figure out how to get the physname without the name of
2260 the class, then the loop can't do any good. */
2262 && (sym_class = lookup_symbol (class_name,
2263 (struct block *) NULL,
2266 (struct symtab **) NULL)))
2270 /* FIXME: Shouldn't this just be CHECK_TYPEDEF (t)? */
2271 t = SYMBOL_TYPE (sym_class);
2273 /* Loop over each method name. At this level, all overloads of a name
2274 are counted as a single name. There is an inner loop which loops over
2277 for (method_counter = TYPE_NFN_FIELDS (t) - 1;
2278 method_counter >= 0;
2282 char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter);
2283 char dem_opname[64];
2285 if (strncmp (method_name, "__", 2) == 0 ||
2286 strncmp (method_name, "op", 2) == 0 ||
2287 strncmp (method_name, "type", 4) == 0)
2289 if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI))
2290 method_name = dem_opname;
2291 else if (cplus_demangle_opname (method_name, dem_opname, 0))
2292 method_name = dem_opname;
2295 if (STREQ (name, method_name))
2296 /* Find all the overloaded methods with that name. */
2297 for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1;
2304 f = TYPE_FN_FIELDLIST1 (t, method_counter);
2306 if (TYPE_FN_FIELD_STUB (f, field_counter))
2310 tmp_name = gdb_mangle_name (t,
2313 phys_name = alloca (strlen (tmp_name) + 1);
2314 strcpy (phys_name, tmp_name);
2318 phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
2320 /* Destructor is handled by caller, dont add it to the list */
2321 if (DESTRUCTOR_PREFIX_P (phys_name))
2324 sym_arr[i1] = lookup_symbol (phys_name,
2325 NULL, VAR_NAMESPACE,
2327 (struct symtab **) NULL);
2332 /* This error message gets printed, but the method
2333 still seems to be found
2334 fputs_filtered("(Cannot find method ", gdb_stdout);
2335 fprintf_symbol_filtered (gdb_stdout, phys_name,
2337 DMGL_PARAMS | DMGL_ANSI);
2338 fputs_filtered(" - possibly inlined.)\n", gdb_stdout);
2345 /* Only search baseclasses if there is no match yet, since names in
2346 derived classes override those in baseclasses.
2348 FIXME: The above is not true; it is only true of member functions
2349 if they have the same number of arguments (??? - section 13.1 of the
2350 ARM says the function members are not in the same scope but doesn't
2351 really spell out the rules in a way I understand. In any case, if
2352 the number of arguments differ this is a case in which we can overload
2353 rather than hiding without any problem, and gcc 2.4.5 does overload
2354 rather than hiding in this case). */
2357 for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++)
2358 i1 += find_methods (TYPE_BASECLASS (t, ibase), name, sym_arr + i1);
2363 /* Helper function for decode_line_1.
2364 Build a canonical line spec in CANONICAL if it is non-NULL and if
2365 the SAL has a symtab.
2366 If SYMNAME is non-NULL the canonical line spec is `filename:symname'.
2367 If SYMNAME is NULL the line number from SAL is used and the canonical
2368 line spec is `filename:linenum'. */
2371 build_canonical_line_spec (sal, symname, canonical)
2372 struct symtab_and_line *sal;
2376 char **canonical_arr;
2377 char *canonical_name;
2379 struct symtab *s = sal->symtab;
2381 if (s == (struct symtab *) NULL
2382 || s->filename == (char *) NULL
2383 || canonical == (char ***) NULL)
2386 canonical_arr = (char **) xmalloc (sizeof (char *));
2387 *canonical = canonical_arr;
2389 filename = s->filename;
2390 if (symname != NULL)
2392 canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2);
2393 sprintf (canonical_name, "%s:%s", filename, symname);
2397 canonical_name = xmalloc (strlen (filename) + 30);
2398 sprintf (canonical_name, "%s:%d", filename, sal->line);
2400 canonical_arr[0] = canonical_name;
2403 /* Parse a string that specifies a line number.
2404 Pass the address of a char * variable; that variable will be
2405 advanced over the characters actually parsed.
2409 LINENUM -- that line number in current file. PC returned is 0.
2410 FILE:LINENUM -- that line in that file. PC returned is 0.
2411 FUNCTION -- line number of openbrace of that function.
2412 PC returned is the start of the function.
2413 VARIABLE -- line number of definition of that variable.
2415 FILE:FUNCTION -- likewise, but prefer functions in that file.
2416 *EXPR -- line in which address EXPR appears.
2418 This may all be followed by an "if EXPR", which we ignore.
2420 FUNCTION may be an undebuggable function found in minimal symbol table.
2422 If the argument FUNFIRSTLINE is nonzero, we want the first line
2423 of real code inside a function when a function is specified, and it is
2424 not OK to specify a variable or type to get its line number.
2426 DEFAULT_SYMTAB specifies the file to use if none is specified.
2427 It defaults to current_source_symtab.
2428 DEFAULT_LINE specifies the line number to use for relative
2429 line numbers (that start with signs). Defaults to current_source_line.
2430 If CANONICAL is non-NULL, store an array of strings containing the canonical
2431 line specs there if necessary. Currently overloaded member functions and
2432 line numbers or static functions without a filename yield a canonical
2433 line spec. The array and the line spec strings are allocated on the heap,
2434 it is the callers responsibility to free them.
2436 Note that it is possible to return zero for the symtab
2437 if no file is validly specified. Callers must check that.
2438 Also, the line number returned may be invalid. */
2440 /* We allow single quotes in various places. This is a hideous
2441 kludge, which exists because the completer can't yet deal with the
2442 lack of single quotes. FIXME: write a linespec_completer which we
2443 can use as appropriate instead of make_symbol_completion_list. */
2445 struct symtabs_and_lines
2446 decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical)
2449 struct symtab *default_symtab;
2453 struct symtabs_and_lines values;
2454 #ifdef HPPA_COMPILER_BUG
2455 /* FIXME: The native HP 9000/700 compiler has a bug which appears
2456 when optimizing this file with target i960-vxworks. I haven't
2457 been able to construct a simple test case. The problem is that
2458 in the second call to SKIP_PROLOGUE below, the compiler somehow
2459 does not realize that the statement val = find_pc_line (...) will
2460 change the values of the fields of val. It extracts the elements
2461 into registers at the top of the block, and does not update the
2462 registers after the call to find_pc_line. You can check this by
2463 inserting a printf at the end of find_pc_line to show what values
2464 it is returning for val.pc and val.end and another printf after
2465 the call to see what values the function actually got (remember,
2466 this is compiling with cc -O, with this patch removed). You can
2467 also examine the assembly listing: search for the second call to
2468 skip_prologue; the LDO statement before the next call to
2469 find_pc_line loads the address of the structure which
2470 find_pc_line will return; if there is a LDW just before the LDO,
2471 which fetches an element of the structure, then the compiler
2474 Setting val to volatile avoids the problem. We must undef
2475 volatile, because the HPPA native compiler does not define
2476 __STDC__, although it does understand volatile, and so volatile
2477 will have been defined away in defs.h. */
2479 volatile struct symtab_and_line val;
2480 #define volatile /*nothing */
2482 struct symtab_and_line val;
2484 register char *p, *p1;
2485 char *q, *pp, *ii, *p2;
2489 register struct symtab *s;
2491 register struct symbol *sym;
2492 /* The symtab that SYM was found in. */
2493 struct symtab *sym_symtab;
2495 register CORE_ADDR pc;
2496 register struct minimal_symbol *msymbol;
2498 struct symbol *sym_class;
2501 int is_quote_enclosed;
2505 struct symbol **sym_arr;
2507 char *saved_arg = *argptr;
2508 extern char *gdb_completer_quote_characters;
2510 INIT_SAL (&val); /* initialize to zeroes */
2512 /* Defaults have defaults. */
2514 if (default_symtab == 0)
2516 default_symtab = current_source_symtab;
2517 default_line = current_source_line;
2520 /* See if arg is *PC */
2522 if (**argptr == '*')
2525 pc = parse_and_eval_address_1 (argptr);
2527 values.sals = (struct symtab_and_line *)
2528 xmalloc (sizeof (struct symtab_and_line));
2531 values.sals[0] = find_pc_line (pc, 0);
2532 values.sals[0].pc = pc;
2533 values.sals[0].section = find_pc_overlay (pc);
2538 /* 'has_if' is for the syntax:
2539 * (gdb) break foo if (a==b)
2541 if ((ii = strstr (*argptr, " if ")) != NULL ||
2542 (ii = strstr (*argptr, "\tif ")) != NULL ||
2543 (ii = strstr (*argptr, " if\t")) != NULL ||
2544 (ii = strstr (*argptr, "\tif\t")) != NULL ||
2545 (ii = strstr (*argptr, " if(")) != NULL ||
2546 (ii = strstr (*argptr, "\tif( ")) != NULL)
2548 /* Temporarily zap out "if (condition)" to not
2549 * confuse the parenthesis-checking code below.
2550 * This is undone below. Do not change ii!!
2557 /* Set various flags.
2558 * 'has_parens' is important for overload checking, where
2559 * we allow things like:
2560 * (gdb) break c::f(int)
2563 /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
2565 is_quoted = (**argptr
2566 && strchr (gdb_completer_quote_characters, **argptr) != NULL);
2568 has_parens = ((pp = strchr (*argptr, '(')) != NULL
2569 && (pp = strrchr (pp, ')')) != NULL);
2571 /* Now that we're safely past the has_parens check,
2572 * put back " if (condition)" so outer layers can see it
2577 /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM
2578 and we must isolate the first half. Outer layers will call again later
2579 for the second half */
2580 if ((ii = strchr (*argptr, ',')) != NULL)
2582 /* Temporarily zap out second half to not
2583 * confuse the code below.
2584 * This is undone below. Do not change ii!!
2591 /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
2592 /* May also be CLASS::MEMBER, or NAMESPACE::NAME */
2593 /* Look for ':', but ignore inside of <> */
2599 is_quote_enclosed = 1;
2603 is_quote_enclosed = 0;
2608 char *temp_end = find_template_name_end (p);
2610 error ("malformed template specification in command");
2613 /* Check for the end of the first half of the linespec. End of line,
2614 a tab, a double colon or the last single colon, or a space. But
2615 if enclosed in double quotes we do not break on enclosed spaces */
2619 && ((p[1] == ':') || (strchr (p + 1, ':') == NULL)))
2620 || ((p[0] == ' ') && !is_quote_enclosed))
2622 if (p[0] == '.' && strchr (p, ':') == NULL) /* Java qualified method. */
2624 /* Find the *last* '.', since the others are package qualifiers. */
2625 for (p1 = p; *p1; p1++)
2633 while (p[0] == ' ' || p[0] == '\t')
2635 /* if the closing double quote was left at the end, remove it */
2636 if (is_quote_enclosed && ((pp = strchr (p, '"')) != NULL))
2640 /* Now that we've safely parsed the first half,
2641 * put back ',' so outer layers can see it
2646 if ((p[0] == ':' || p[0] == '.') && !has_parens)
2651 *argptr = *argptr + 1;
2652 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)
4421 /* If there is no type information, we can't do anything, so skip */
4422 if (SYMBOL_TYPE (sym) == NULL)
4425 /* skip any symbols that we've already considered. */
4426 for (i = 0; i < sym_return_val_index; ++i)
4427 if (!strcmp (SYMBOL_NAME (sym), SYMBOL_NAME (sym_return_val[i])))
4430 /* We have a match for an overload instance, so add SYM to the current list
4431 * of overload instances */
4432 if (sym_return_val_index + 3 > sym_return_val_size)
4434 newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *);
4435 sym_return_val = (struct symbol **) xrealloc ((char *) sym_return_val, newsize);
4437 sym_return_val[sym_return_val_index++] = sym;
4438 sym_return_val[sym_return_val_index] = NULL;
4443 /* Return a null-terminated list of pointers to function symbols that
4444 * match name of the supplied symbol FSYM.
4445 * This is used in finding all overloaded instances of a function name.
4446 * This has been modified from make_symbol_completion_list. */
4450 make_symbol_overload_list (fsym)
4451 struct symbol *fsym;
4453 register struct symbol *sym;
4454 register struct symtab *s;
4455 register struct partial_symtab *ps;
4456 register struct objfile *objfile;
4457 register struct minimal_symbol *msymbol;
4458 register struct block *b, *surrounding_static_block = 0;
4460 /* The name we are completing on. */
4461 char *oload_name = NULL;
4462 /* Length of name. */
4463 int oload_name_len = 0;
4465 /* Look for the symbol we are supposed to complete on.
4466 * FIXME: This should be language-specific. */
4468 oload_name = cplus_demangle (SYMBOL_NAME (fsym), DMGL_ARM | DMGL_ANSI);
4471 oload_name = (char *) xmalloc (strlen (SYMBOL_NAME (fsym)) + 1);
4472 strcpy (oload_name, SYMBOL_NAME (fsym));
4474 oload_name_len = strlen (oload_name);
4476 sym_return_val_size = 100;
4477 sym_return_val_index = 0;
4478 sym_return_val = (struct symbol **) xmalloc ((sym_return_val_size + 1) * sizeof (struct symbol *));
4479 sym_return_val[0] = NULL;
4481 /* Look through the partial symtabs for all symbols which begin
4482 by matching OLOAD_NAME. Make sure we read that symbol table in. */
4484 ALL_PSYMTABS (objfile, ps)
4486 struct partial_symbol **psym;
4488 /* If the psymtab's been read in we'll get it when we search
4489 through the blockvector. */
4493 for (psym = objfile->global_psymbols.list + ps->globals_offset;
4494 psym < (objfile->global_psymbols.list + ps->globals_offset
4495 + ps->n_global_syms);
4498 /* If interrupted, then quit. */
4500 /* This will cause the symbol table to be read if it has not yet been */
4501 s = PSYMTAB_TO_SYMTAB (ps);
4504 for (psym = objfile->static_psymbols.list + ps->statics_offset;
4505 psym < (objfile->static_psymbols.list + ps->statics_offset
4506 + ps->n_static_syms);
4510 /* This will cause the symbol table to be read if it has not yet been */
4511 s = PSYMTAB_TO_SYMTAB (ps);
4515 /* Search upwards from currently selected frame (so that we can
4516 complete on local vars. */
4518 for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b))
4520 if (!BLOCK_SUPERBLOCK (b))
4522 surrounding_static_block = b; /* For elimination of dups */
4525 /* Also catch fields of types defined in this places which match our
4526 text string. Only complete on types visible from current context. */
4528 for (i = 0; i < BLOCK_NSYMS (b); i++)
4530 sym = BLOCK_SYM (b, i);
4531 overload_list_add_symbol (sym, oload_name);
4535 /* Go through the symtabs and check the externs and statics for
4536 symbols which match. */
4538 ALL_SYMTABS (objfile, s)
4541 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
4542 for (i = 0; i < BLOCK_NSYMS (b); i++)
4544 sym = BLOCK_SYM (b, i);
4545 overload_list_add_symbol (sym, oload_name);
4549 ALL_SYMTABS (objfile, s)
4552 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
4553 /* Don't do this block twice. */
4554 if (b == surrounding_static_block)
4556 for (i = 0; i < BLOCK_NSYMS (b); i++)
4558 sym = BLOCK_SYM (b, i);
4559 overload_list_add_symbol (sym, oload_name);
4565 return (sym_return_val);
4568 /* End of overload resolution functions */
4572 _initialize_symtab ()
4574 add_info ("variables", variables_info,
4575 "All global and static variable names, or those matching REGEXP.");
4577 add_com ("whereis", class_info, variables_info,
4578 "All global and static variable names, or those matching REGEXP.");
4580 add_info ("functions", functions_info,
4581 "All function names, or those matching REGEXP.");
4583 /* FIXME: This command has at least the following problems:
4584 1. It prints builtin types (in a very strange and confusing fashion).
4585 2. It doesn't print right, e.g. with
4586 typedef struct foo *FOO
4587 type_print prints "FOO" when we want to make it (in this situation)
4588 print "struct foo *".
4589 I also think "ptype" or "whatis" is more likely to be useful (but if
4590 there is much disagreement "info types" can be fixed). */
4591 add_info ("types", types_info,
4592 "All type names, or those matching REGEXP.");
4595 add_info ("methods", methods_info,
4596 "All method names, or those matching REGEXP::REGEXP.\n\
4597 If the class qualifier is omitted, it is assumed to be the current scope.\n\
4598 If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
4601 add_info ("sources", sources_info,
4602 "Source files in the program.");
4604 add_com ("rbreak", class_breakpoint, rbreak_command,
4605 "Set a breakpoint for all functions matching REGEXP.");
4609 add_com ("lf", class_info, sources_info, "Source files in the program");
4610 add_com ("lg", class_info, variables_info,
4611 "All global and static variable names, or those matching REGEXP.");
4614 /* Initialize the one built-in type that isn't language dependent... */
4615 builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0,
4616 "<unknown type>", (struct objfile *) NULL);