1 /* Symbol table lookup for the GNU debugger, GDB.
3 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
4 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free Software
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
34 #include "call-cmds.h"
35 #include "gdb_regex.h"
36 #include "expression.h"
41 #include "filenames.h" /* for FILENAME_CMP */
43 #include "gdb_obstack.h"
45 #include <sys/types.h>
47 #include "gdb_string.h"
52 /* Prototype for one function in parser-defs.h,
53 instead of including that entire file. */
55 extern char *find_template_name_end (char *);
57 /* Prototypes for local functions */
59 static void completion_list_add_name (char *, char *, int, char *, char *);
61 static void rbreak_command (char *, int);
63 static void types_info (char *, int);
65 static void functions_info (char *, int);
67 static void variables_info (char *, int);
69 static void sources_info (char *, int);
71 static void output_source_filename (char *, int *);
73 static int find_line_common (struct linetable *, int, int *);
75 /* This one is used by linespec.c */
77 char *operator_chars (char *p, char **end);
79 static struct partial_symbol *lookup_partial_symbol (struct partial_symtab *,
83 static struct symbol *lookup_symbol_aux (const char *name,
84 const char *mangled_name,
85 const struct block *block,
86 const namespace_enum namespace,
87 int *is_a_field_of_this,
88 struct symtab **symtab);
91 static struct symbol *find_active_alias (struct symbol *sym, CORE_ADDR addr);
93 /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
94 /* Signals the presence of objects compiled by HP compilers */
95 int hp_som_som_object_present = 0;
97 static void fixup_section (struct general_symbol_info *, struct objfile *);
99 static int file_matches (char *, char **, int);
101 static void print_symbol_info (namespace_enum,
102 struct symtab *, struct symbol *, int, char *);
104 static void print_msymbol_info (struct minimal_symbol *);
106 static void symtab_symbol_info (char *, namespace_enum, int);
108 static void overload_list_add_symbol (struct symbol *sym, char *oload_name);
110 void _initialize_symtab (void);
114 /* The single non-language-specific builtin type */
115 struct type *builtin_type_error;
117 /* Block in which the most recently searched-for symbol was found.
118 Might be better to make this a parameter to lookup_symbol and
121 const struct block *block_found;
123 /* While the C++ support is still in flux, issue a possibly helpful hint on
124 using the new command completion feature on single quoted demangled C++
125 symbols. Remove when loose ends are cleaned up. FIXME -fnf */
128 cplusplus_hint (char *name)
130 while (*name == '\'')
132 printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name);
133 printf_filtered ("(Note leading single quote.)\n");
136 /* Check for a symtab of a specific name; first in symtabs, then in
137 psymtabs. *If* there is no '/' in the name, a match after a '/'
138 in the symtab filename will also work. */
141 lookup_symtab (const char *name)
143 register struct symtab *s;
144 register struct partial_symtab *ps;
145 register struct objfile *objfile;
146 char *real_path = NULL;
147 char *full_path = NULL;
149 /* Here we are interested in canonicalizing an absolute path, not
150 absolutizing a relative path. */
151 if (IS_ABSOLUTE_PATH (name))
153 full_path = xfullpath (name);
154 make_cleanup (xfree, full_path);
155 real_path = gdb_realpath (name);
156 make_cleanup (xfree, real_path);
161 /* First, search for an exact match */
163 ALL_SYMTABS (objfile, s)
165 if (FILENAME_CMP (name, s->filename) == 0)
170 /* If the user gave us an absolute path, try to find the file in
171 this symtab and use its absolute path. */
173 if (full_path != NULL)
175 const char *fp = symtab_to_filename (s);
176 if (FILENAME_CMP (full_path, fp) == 0)
182 if (real_path != NULL)
184 char *rp = gdb_realpath (symtab_to_filename (s));
185 make_cleanup (xfree, rp);
186 if (FILENAME_CMP (real_path, rp) == 0)
193 /* Now, search for a matching tail (only if name doesn't have any dirs) */
195 if (lbasename (name) == name)
196 ALL_SYMTABS (objfile, s)
198 if (FILENAME_CMP (lbasename (s->filename), name) == 0)
202 /* Same search rules as above apply here, but now we look thru the
205 ps = lookup_partial_symtab (name);
210 error ("Internal: readin %s pst for `%s' found when no symtab found.",
213 s = PSYMTAB_TO_SYMTAB (ps);
218 /* At this point, we have located the psymtab for this file, but
219 the conversion to a symtab has failed. This usually happens
220 when we are looking up an include file. In this case,
221 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
222 been created. So, we need to run through the symtabs again in
223 order to find the file.
224 XXX - This is a crock, and should be fixed inside of the the
225 symbol parsing routines. */
229 /* Lookup the partial symbol table of a source file named NAME.
230 *If* there is no '/' in the name, a match after a '/'
231 in the psymtab filename will also work. */
233 struct partial_symtab *
234 lookup_partial_symtab (const char *name)
236 register struct partial_symtab *pst;
237 register struct objfile *objfile;
238 char *full_path = NULL;
239 char *real_path = NULL;
241 /* Here we are interested in canonicalizing an absolute path, not
242 absolutizing a relative path. */
243 if (IS_ABSOLUTE_PATH (name))
245 full_path = xfullpath (name);
246 make_cleanup (xfree, full_path);
247 real_path = gdb_realpath (name);
248 make_cleanup (xfree, real_path);
251 ALL_PSYMTABS (objfile, pst)
253 if (FILENAME_CMP (name, pst->filename) == 0)
258 /* If the user gave us an absolute path, try to find the file in
259 this symtab and use its absolute path. */
260 if (full_path != NULL)
262 if (pst->fullname == NULL)
263 source_full_path_of (pst->filename, &pst->fullname);
264 if (pst->fullname != NULL
265 && FILENAME_CMP (full_path, pst->fullname) == 0)
271 if (real_path != NULL)
274 if (pst->fullname == NULL)
275 source_full_path_of (pst->filename, &pst->fullname);
276 if (pst->fullname != NULL)
278 rp = gdb_realpath (pst->fullname);
279 make_cleanup (xfree, rp);
281 if (rp != NULL && FILENAME_CMP (real_path, rp) == 0)
288 /* Now, search for a matching tail (only if name doesn't have any dirs) */
290 if (lbasename (name) == name)
291 ALL_PSYMTABS (objfile, pst)
293 if (FILENAME_CMP (lbasename (pst->filename), name) == 0)
300 /* Mangle a GDB method stub type. This actually reassembles the pieces of the
301 full method name, which consist of the class name (from T), the unadorned
302 method name from METHOD_ID, and the signature for the specific overload,
303 specified by SIGNATURE_ID. Note that this function is g++ specific. */
306 gdb_mangle_name (struct type *type, int method_id, int signature_id)
308 int mangled_name_len;
310 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id);
311 struct fn_field *method = &f[signature_id];
312 char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id);
313 char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id);
314 char *newname = type_name_no_tag (type);
316 /* Does the form of physname indicate that it is the full mangled name
317 of a constructor (not just the args)? */
318 int is_full_physname_constructor;
321 int is_destructor = is_destructor_name (physname);
322 /* Need a new type prefix. */
323 char *const_prefix = method->is_const ? "C" : "";
324 char *volatile_prefix = method->is_volatile ? "V" : "";
326 int len = (newname == NULL ? 0 : strlen (newname));
328 /* Nothing to do if physname already contains a fully mangled v3 abi name
329 or an operator name. */
330 if ((physname[0] == '_' && physname[1] == 'Z')
331 || is_operator_name (field_name))
332 return xstrdup (physname);
334 is_full_physname_constructor = is_constructor_name (physname);
337 is_full_physname_constructor || (newname && STREQ (field_name, newname));
340 is_destructor = (strncmp (physname, "__dt", 4) == 0);
342 if (is_destructor || is_full_physname_constructor)
344 mangled_name = (char *) xmalloc (strlen (physname) + 1);
345 strcpy (mangled_name, physname);
351 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
353 else if (physname[0] == 't' || physname[0] == 'Q')
355 /* The physname for template and qualified methods already includes
357 sprintf (buf, "__%s%s", const_prefix, volatile_prefix);
363 sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len);
365 mangled_name_len = ((is_constructor ? 0 : strlen (field_name))
366 + strlen (buf) + len + strlen (physname) + 1);
369 mangled_name = (char *) xmalloc (mangled_name_len);
371 mangled_name[0] = '\0';
373 strcpy (mangled_name, field_name);
375 strcat (mangled_name, buf);
376 /* If the class doesn't have a name, i.e. newname NULL, then we just
377 mangle it using 0 for the length of the class. Thus it gets mangled
378 as something starting with `::' rather than `classname::'. */
380 strcat (mangled_name, newname);
382 strcat (mangled_name, physname);
383 return (mangled_name);
387 /* Initialize a symbol's mangled name. */
389 /* Try to initialize the demangled name for a symbol, based on the
390 language of that symbol. If the language is set to language_auto,
391 it will attempt to find any demangling algorithm that works and
392 then set the language appropriately. If no demangling of any kind
393 is found, the language is set back to language_unknown, so we can
394 avoid doing this work again the next time we encounter the symbol.
395 Any required space to store the name is obtained from the specified
399 symbol_init_demangled_name (struct general_symbol_info *gsymbol,
400 struct obstack *obstack)
402 char *mangled = gsymbol->name;
403 char *demangled = NULL;
405 if (gsymbol->language == language_unknown)
406 gsymbol->language = language_auto;
407 if (gsymbol->language == language_cplus
408 || gsymbol->language == language_auto)
411 cplus_demangle (gsymbol->name, DMGL_PARAMS | DMGL_ANSI);
412 if (demangled != NULL)
414 gsymbol->language = language_cplus;
415 gsymbol->language_specific.cplus_specific.demangled_name =
416 obsavestring (demangled, strlen (demangled), obstack);
421 gsymbol->language_specific.cplus_specific.demangled_name = NULL;
424 if (gsymbol->language == language_java)
427 cplus_demangle (gsymbol->name,
428 DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA);
429 if (demangled != NULL)
431 gsymbol->language = language_java;
432 gsymbol->language_specific.cplus_specific.demangled_name =
433 obsavestring (demangled, strlen (demangled), obstack);
438 gsymbol->language_specific.cplus_specific.demangled_name = NULL;
441 if (demangled == NULL
442 && (gsymbol->language == language_chill
443 || gsymbol->language == language_auto))
446 chill_demangle (gsymbol->name);
447 if (demangled != NULL)
449 gsymbol->language = language_chill;
450 gsymbol->language_specific.chill_specific.demangled_name =
451 obsavestring (demangled, strlen (demangled), obstack);
456 gsymbol->language_specific.chill_specific.demangled_name = NULL;
465 /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
467 struct partial_symtab *
468 find_pc_sect_psymtab (CORE_ADDR pc, asection *section)
470 register struct partial_symtab *pst;
471 register struct objfile *objfile;
472 struct minimal_symbol *msymbol;
474 /* If we know that this is not a text address, return failure. This is
475 necessary because we loop based on texthigh and textlow, which do
476 not include the data ranges. */
477 msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
479 && (msymbol->type == mst_data
480 || msymbol->type == mst_bss
481 || msymbol->type == mst_abs
482 || msymbol->type == mst_file_data
483 || msymbol->type == mst_file_bss))
486 ALL_PSYMTABS (objfile, pst)
488 if (pc >= pst->textlow && pc < pst->texthigh)
490 struct partial_symtab *tpst;
492 /* An objfile that has its functions reordered might have
493 many partial symbol tables containing the PC, but
494 we want the partial symbol table that contains the
495 function containing the PC. */
496 if (!(objfile->flags & OBJF_REORDERED) &&
497 section == 0) /* can't validate section this way */
503 for (tpst = pst; tpst != NULL; tpst = tpst->next)
505 if (pc >= tpst->textlow && pc < tpst->texthigh)
507 struct partial_symbol *p;
509 p = find_pc_sect_psymbol (tpst, pc, section);
511 && SYMBOL_VALUE_ADDRESS (p)
512 == SYMBOL_VALUE_ADDRESS (msymbol))
522 /* Find which partial symtab contains PC. Return 0 if none.
523 Backward compatibility, no section */
525 struct partial_symtab *
526 find_pc_psymtab (CORE_ADDR pc)
528 return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc));
531 /* Find which partial symbol within a psymtab matches PC and SECTION.
532 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
534 struct partial_symbol *
535 find_pc_sect_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc,
538 struct partial_symbol *best = NULL, *p, **pp;
542 psymtab = find_pc_sect_psymtab (pc, section);
546 /* Cope with programs that start at address 0 */
547 best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0;
549 /* Search the global symbols as well as the static symbols, so that
550 find_pc_partial_function doesn't use a minimal symbol and thus
551 cache a bad endaddr. */
552 for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset;
553 (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset)
554 < psymtab->n_global_syms);
558 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
559 && SYMBOL_CLASS (p) == LOC_BLOCK
560 && pc >= SYMBOL_VALUE_ADDRESS (p)
561 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
562 || (psymtab->textlow == 0
563 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
565 if (section) /* match on a specific section */
567 fixup_psymbol_section (p, psymtab->objfile);
568 if (SYMBOL_BFD_SECTION (p) != section)
571 best_pc = SYMBOL_VALUE_ADDRESS (p);
576 for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset;
577 (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset)
578 < psymtab->n_static_syms);
582 if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
583 && SYMBOL_CLASS (p) == LOC_BLOCK
584 && pc >= SYMBOL_VALUE_ADDRESS (p)
585 && (SYMBOL_VALUE_ADDRESS (p) > best_pc
586 || (psymtab->textlow == 0
587 && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
589 if (section) /* match on a specific section */
591 fixup_psymbol_section (p, psymtab->objfile);
592 if (SYMBOL_BFD_SECTION (p) != section)
595 best_pc = SYMBOL_VALUE_ADDRESS (p);
603 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
604 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
606 struct partial_symbol *
607 find_pc_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc)
609 return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc));
612 /* Debug symbols usually don't have section information. We need to dig that
613 out of the minimal symbols and stash that in the debug symbol. */
616 fixup_section (struct general_symbol_info *ginfo, struct objfile *objfile)
618 struct minimal_symbol *msym;
619 msym = lookup_minimal_symbol (ginfo->name, NULL, objfile);
623 ginfo->bfd_section = SYMBOL_BFD_SECTION (msym);
624 ginfo->section = SYMBOL_SECTION (msym);
629 fixup_symbol_section (struct symbol *sym, struct objfile *objfile)
634 if (SYMBOL_BFD_SECTION (sym))
637 fixup_section (&sym->ginfo, objfile);
642 struct partial_symbol *
643 fixup_psymbol_section (struct partial_symbol *psym, struct objfile *objfile)
648 if (SYMBOL_BFD_SECTION (psym))
651 fixup_section (&psym->ginfo, objfile);
656 /* Find the definition for a specified symbol name NAME
657 in namespace NAMESPACE, visible from lexical block BLOCK.
658 Returns the struct symbol pointer, or zero if no symbol is found.
659 If SYMTAB is non-NULL, store the symbol table in which the
660 symbol was found there, or NULL if not found.
661 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
662 NAME is a field of the current implied argument `this'. If so set
663 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
664 BLOCK_FOUND is set to the block in which NAME is found (in the case of
665 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
667 /* This function has a bunch of loops in it and it would seem to be
668 attractive to put in some QUIT's (though I'm not really sure
669 whether it can run long enough to be really important). But there
670 are a few calls for which it would appear to be bad news to quit
671 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
672 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
673 code below which can error(), but that probably doesn't affect
674 these calls since they are looking for a known variable and thus
675 can probably assume it will never hit the C++ code). */
678 lookup_symbol (const char *name, const struct block *block,
679 const namespace_enum namespace, int *is_a_field_of_this,
680 struct symtab **symtab)
682 char *modified_name = NULL;
683 char *modified_name2 = NULL;
684 const char *mangled_name = NULL;
685 int needtofreename = 0;
686 struct symbol *returnval;
688 if (case_sensitivity == case_sensitive_off)
694 copy = (char *) alloca (len + 1);
695 for (i= 0; i < len; i++)
696 copy[i] = tolower (name[i]);
698 modified_name = copy;
701 modified_name = (char *) name;
703 /* If we are using C++ language, demangle the name before doing a lookup, so
704 we can always binary search. */
705 if (current_language->la_language == language_cplus)
707 modified_name2 = cplus_demangle (modified_name, DMGL_ANSI | DMGL_PARAMS);
711 modified_name = modified_name2;
716 returnval = lookup_symbol_aux (modified_name, mangled_name, block,
717 namespace, is_a_field_of_this, symtab);
719 xfree (modified_name2);
724 static struct symbol *
725 lookup_symbol_aux (const char *name, const char *mangled_name,
726 const struct block *block, const namespace_enum namespace,
727 int *is_a_field_of_this, struct symtab **symtab)
729 register struct symbol *sym;
730 register struct symtab *s = NULL;
731 register struct partial_symtab *ps;
732 register struct blockvector *bv;
733 register struct objfile *objfile = NULL;
734 register struct block *b;
735 register struct minimal_symbol *msymbol;
738 /* Search specified block and its superiors. */
742 sym = lookup_block_symbol (block, name, mangled_name, namespace);
748 /* Search the list of symtabs for one which contains the
749 address of the start of this block. */
750 ALL_SYMTABS (objfile, s)
752 bv = BLOCKVECTOR (s);
753 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
754 if (BLOCK_START (b) <= BLOCK_START (block)
755 && BLOCK_END (b) > BLOCK_START (block))
762 return fixup_symbol_section (sym, objfile);
764 block = BLOCK_SUPERBLOCK (block);
767 /* FIXME: this code is never executed--block is always NULL at this
768 point. What is it trying to do, anyway? We already should have
769 checked the STATIC_BLOCK above (it is the superblock of top-level
770 blocks). Why is VAR_NAMESPACE special-cased? */
771 /* Don't need to mess with the psymtabs; if we have a block,
772 that file is read in. If we don't, then we deal later with
773 all the psymtab stuff that needs checking. */
774 /* Note (RT): The following never-executed code looks unnecessary to me also.
775 * If we change the code to use the original (passed-in)
776 * value of 'block', we could cause it to execute, but then what
777 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
778 * 'block' was already searched by the above code. And the STATIC_BLOCK's
779 * of *other* symtabs (those files not containing 'block' lexically)
780 * should not contain 'block' address-wise. So we wouldn't expect this
781 * code to find any 'sym''s that were not found above. I vote for
782 * deleting the following paragraph of code.
784 if (namespace == VAR_NAMESPACE && block != NULL)
787 /* Find the right symtab. */
788 ALL_SYMTABS (objfile, s)
790 bv = BLOCKVECTOR (s);
791 b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
792 if (BLOCK_START (b) <= BLOCK_START (block)
793 && BLOCK_END (b) > BLOCK_START (block))
795 sym = lookup_block_symbol (b, name, mangled_name, VAR_NAMESPACE);
801 return fixup_symbol_section (sym, objfile);
808 /* C++: If requested to do so by the caller,
809 check to see if NAME is a field of `this'. */
810 if (is_a_field_of_this)
812 struct value *v = value_of_this (0);
814 *is_a_field_of_this = 0;
815 if (v && check_field (v, name))
817 *is_a_field_of_this = 1;
824 /* Now search all global blocks. Do the symtab's first, then
825 check the psymtab's. If a psymtab indicates the existence
826 of the desired name as a global, then do psymtab-to-symtab
827 conversion on the fly and return the found symbol. */
829 ALL_SYMTABS (objfile, s)
831 bv = BLOCKVECTOR (s);
832 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
833 sym = lookup_block_symbol (block, name, mangled_name, namespace);
839 return fixup_symbol_section (sym, objfile);
845 /* Check for the possibility of the symbol being a function or
846 a mangled variable that is stored in one of the minimal symbol tables.
847 Eventually, all global symbols might be resolved in this way. */
849 if (namespace == VAR_NAMESPACE)
851 msymbol = lookup_minimal_symbol (name, NULL, NULL);
854 s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol),
855 SYMBOL_BFD_SECTION (msymbol));
858 /* This is a function which has a symtab for its address. */
859 bv = BLOCKVECTOR (s);
860 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
861 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
862 mangled_name, namespace);
863 /* We kept static functions in minimal symbol table as well as
864 in static scope. We want to find them in the symbol table. */
867 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
868 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
869 mangled_name, namespace);
872 /* sym == 0 if symbol was found in the minimal symbol table
873 but not in the symtab.
874 Return 0 to use the msymbol definition of "foo_".
876 This happens for Fortran "foo_" symbols,
877 which are "foo" in the symtab.
879 This can also happen if "asm" is used to make a
880 regular symbol but not a debugging symbol, e.g.
887 return fixup_symbol_section (sym, objfile);
889 else if (MSYMBOL_TYPE (msymbol) != mst_text
890 && MSYMBOL_TYPE (msymbol) != mst_file_text
891 && !STREQ (name, SYMBOL_NAME (msymbol)))
893 /* This is a mangled variable, look it up by its
895 return lookup_symbol_aux (SYMBOL_NAME (msymbol), mangled_name, block,
896 namespace, is_a_field_of_this, symtab);
898 /* There are no debug symbols for this file, or we are looking
899 for an unmangled variable.
900 Try to find a matching static symbol below. */
906 ALL_PSYMTABS (objfile, ps)
908 if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace))
910 s = PSYMTAB_TO_SYMTAB (ps);
911 bv = BLOCKVECTOR (s);
912 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
913 sym = lookup_block_symbol (block, name, mangled_name, namespace);
916 /* This shouldn't be necessary, but as a last resort
917 * try looking in the statics even though the psymtab
918 * claimed the symbol was global. It's possible that
919 * the psymtab gets it wrong in some cases.
921 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
922 sym = lookup_block_symbol (block, name, mangled_name, namespace);
924 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
925 %s may be an inlined function, or may be a template function\n\
926 (if a template, try specifying an instantiation: %s<type>).",
927 name, ps->filename, name, name);
931 return fixup_symbol_section (sym, objfile);
935 /* Now search all static file-level symbols.
936 Not strictly correct, but more useful than an error.
937 Do the symtabs first, then check the psymtabs.
938 If a psymtab indicates the existence
939 of the desired name as a file-level static, then do psymtab-to-symtab
940 conversion on the fly and return the found symbol. */
942 ALL_SYMTABS (objfile, s)
944 bv = BLOCKVECTOR (s);
945 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
946 sym = lookup_block_symbol (block, name, mangled_name, namespace);
952 return fixup_symbol_section (sym, objfile);
956 ALL_PSYMTABS (objfile, ps)
958 if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace))
960 s = PSYMTAB_TO_SYMTAB (ps);
961 bv = BLOCKVECTOR (s);
962 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
963 sym = lookup_block_symbol (block, name, mangled_name, namespace);
966 /* This shouldn't be necessary, but as a last resort
967 * try looking in the globals even though the psymtab
968 * claimed the symbol was static. It's possible that
969 * the psymtab gets it wrong in some cases.
971 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
972 sym = lookup_block_symbol (block, name, mangled_name, namespace);
974 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
975 %s may be an inlined function, or may be a template function\n\
976 (if a template, try specifying an instantiation: %s<type>).",
977 name, ps->filename, name, name);
981 return fixup_symbol_section (sym, objfile);
987 /* Check for the possibility of the symbol being a function or
988 a global variable that is stored in one of the minimal symbol tables.
989 The "minimal symbol table" is built from linker-supplied info.
991 RT: I moved this check to last, after the complete search of
992 the global (p)symtab's and static (p)symtab's. For HP-generated
993 symbol tables, this check was causing a premature exit from
994 lookup_symbol with NULL return, and thus messing up symbol lookups
995 of things like "c::f". It seems to me a check of the minimal
996 symbol table ought to be a last resort in any case. I'm vaguely
997 worried about the comment below which talks about FORTRAN routines "foo_"
998 though... is it saying we need to do the "minsym" check before
999 the static check in this case?
1002 if (namespace == VAR_NAMESPACE)
1004 msymbol = lookup_minimal_symbol (name, NULL, NULL);
1005 if (msymbol != NULL)
1007 /* OK, we found a minimal symbol in spite of not
1008 * finding any symbol. There are various possible
1009 * explanations for this. One possibility is the symbol
1010 * exists in code not compiled -g. Another possibility
1011 * is that the 'psymtab' isn't doing its job.
1012 * A third possibility, related to #2, is that we were confused
1013 * by name-mangling. For instance, maybe the psymtab isn't
1014 * doing its job because it only know about demangled
1015 * names, but we were given a mangled name...
1018 /* We first use the address in the msymbol to try to
1019 * locate the appropriate symtab. Note that find_pc_symtab()
1020 * has a side-effect of doing psymtab-to-symtab expansion,
1021 * for the found symtab.
1023 s = find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol));
1026 bv = BLOCKVECTOR (s);
1027 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1028 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
1029 mangled_name, namespace);
1030 /* We kept static functions in minimal symbol table as well as
1031 in static scope. We want to find them in the symbol table. */
1034 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1035 sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol),
1036 mangled_name, namespace);
1038 /* If we found one, return it */
1046 /* If we get here with sym == 0, the symbol was
1047 found in the minimal symbol table
1048 but not in the symtab.
1049 Fall through and return 0 to use the msymbol
1050 definition of "foo_".
1051 (Note that outer code generally follows up a call
1052 to this routine with a call to lookup_minimal_symbol(),
1053 so a 0 return means we'll just flow into that other routine).
1055 This happens for Fortran "foo_" symbols,
1056 which are "foo" in the symtab.
1058 This can also happen if "asm" is used to make a
1059 regular symbol but not a debugging symbol, e.g.
1060 asm(".globl _main");
1065 /* If the lookup-by-address fails, try repeating the
1066 * entire lookup process with the symbol name from
1067 * the msymbol (if different from the original symbol name).
1069 else if (MSYMBOL_TYPE (msymbol) != mst_text
1070 && MSYMBOL_TYPE (msymbol) != mst_file_text
1071 && !STREQ (name, SYMBOL_NAME (msymbol)))
1073 return lookup_symbol_aux (SYMBOL_NAME (msymbol), mangled_name,
1074 block, namespace, is_a_field_of_this,
1087 /* Look, in partial_symtab PST, for symbol NAME. Check the global
1088 symbols if GLOBAL, the static symbols if not */
1090 static struct partial_symbol *
1091 lookup_partial_symbol (struct partial_symtab *pst, const char *name, int global,
1092 namespace_enum namespace)
1094 struct partial_symbol *temp;
1095 struct partial_symbol **start, **psym;
1096 struct partial_symbol **top, **bottom, **center;
1097 int length = (global ? pst->n_global_syms : pst->n_static_syms);
1098 int do_linear_search = 1;
1105 pst->objfile->global_psymbols.list + pst->globals_offset :
1106 pst->objfile->static_psymbols.list + pst->statics_offset);
1108 if (global) /* This means we can use a binary search. */
1110 do_linear_search = 0;
1112 /* Binary search. This search is guaranteed to end with center
1113 pointing at the earliest partial symbol with the correct
1114 name. At that point *all* partial symbols with that name
1115 will be checked against the correct namespace. */
1118 top = start + length - 1;
1119 while (top > bottom)
1121 center = bottom + (top - bottom) / 2;
1122 if (!(center < top))
1123 internal_error (__FILE__, __LINE__, "failed internal consistency check");
1124 if (!do_linear_search
1125 && (SYMBOL_LANGUAGE (*center) == language_java))
1127 do_linear_search = 1;
1129 if (strcmp (SYMBOL_SOURCE_NAME (*center), name) >= 0)
1135 bottom = center + 1;
1138 if (!(top == bottom))
1139 internal_error (__FILE__, __LINE__, "failed internal consistency check");
1141 /* djb - 2000-06-03 - Use SYMBOL_MATCHES_NAME, not a strcmp, so
1142 we don't have to force a linear search on C++. Probably holds true
1143 for JAVA as well, no way to check.*/
1144 while (SYMBOL_MATCHES_NAME (*top,name))
1146 if (SYMBOL_NAMESPACE (*top) == namespace)
1154 /* Can't use a binary search or else we found during the binary search that
1155 we should also do a linear search. */
1157 if (do_linear_search)
1159 for (psym = start; psym < start + length; psym++)
1161 if (namespace == SYMBOL_NAMESPACE (*psym))
1163 if (SYMBOL_MATCHES_NAME (*psym, name))
1174 /* Look up a type named NAME in the struct_namespace. The type returned
1175 must not be opaque -- i.e., must have at least one field defined
1177 This code was modelled on lookup_symbol -- the parts not relevant to looking
1178 up types were just left out. In particular it's assumed here that types
1179 are available in struct_namespace and only at file-static or global blocks. */
1183 lookup_transparent_type (const char *name)
1185 register struct symbol *sym;
1186 register struct symtab *s = NULL;
1187 register struct partial_symtab *ps;
1188 struct blockvector *bv;
1189 register struct objfile *objfile;
1190 register struct block *block;
1192 /* Now search all the global symbols. Do the symtab's first, then
1193 check the psymtab's. If a psymtab indicates the existence
1194 of the desired name as a global, then do psymtab-to-symtab
1195 conversion on the fly and return the found symbol. */
1197 ALL_SYMTABS (objfile, s)
1199 bv = BLOCKVECTOR (s);
1200 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1201 sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE);
1202 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1204 return SYMBOL_TYPE (sym);
1208 ALL_PSYMTABS (objfile, ps)
1210 if (!ps->readin && lookup_partial_symbol (ps, name, 1, STRUCT_NAMESPACE))
1212 s = PSYMTAB_TO_SYMTAB (ps);
1213 bv = BLOCKVECTOR (s);
1214 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1215 sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE);
1218 /* This shouldn't be necessary, but as a last resort
1219 * try looking in the statics even though the psymtab
1220 * claimed the symbol was global. It's possible that
1221 * the psymtab gets it wrong in some cases.
1223 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1224 sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE);
1226 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
1227 %s may be an inlined function, or may be a template function\n\
1228 (if a template, try specifying an instantiation: %s<type>).",
1229 name, ps->filename, name, name);
1231 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1232 return SYMBOL_TYPE (sym);
1236 /* Now search the static file-level symbols.
1237 Not strictly correct, but more useful than an error.
1238 Do the symtab's first, then
1239 check the psymtab's. If a psymtab indicates the existence
1240 of the desired name as a file-level static, then do psymtab-to-symtab
1241 conversion on the fly and return the found symbol.
1244 ALL_SYMTABS (objfile, s)
1246 bv = BLOCKVECTOR (s);
1247 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1248 sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE);
1249 if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1251 return SYMBOL_TYPE (sym);
1255 ALL_PSYMTABS (objfile, ps)
1257 if (!ps->readin && lookup_partial_symbol (ps, name, 0, STRUCT_NAMESPACE))
1259 s = PSYMTAB_TO_SYMTAB (ps);
1260 bv = BLOCKVECTOR (s);
1261 block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1262 sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE);
1265 /* This shouldn't be necessary, but as a last resort
1266 * try looking in the globals even though the psymtab
1267 * claimed the symbol was static. It's possible that
1268 * the psymtab gets it wrong in some cases.
1270 block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1271 sym = lookup_block_symbol (block, name, NULL, STRUCT_NAMESPACE);
1273 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
1274 %s may be an inlined function, or may be a template function\n\
1275 (if a template, try specifying an instantiation: %s<type>).",
1276 name, ps->filename, name, name);
1278 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
1279 return SYMBOL_TYPE (sym);
1282 return (struct type *) 0;
1286 /* Find the psymtab containing main(). */
1287 /* FIXME: What about languages without main() or specially linked
1288 executables that have no main() ? */
1290 struct partial_symtab *
1291 find_main_psymtab (void)
1293 register struct partial_symtab *pst;
1294 register struct objfile *objfile;
1296 ALL_PSYMTABS (objfile, pst)
1298 if (lookup_partial_symbol (pst, main_name (), 1, VAR_NAMESPACE))
1306 /* Search BLOCK for symbol NAME in NAMESPACE.
1308 Note that if NAME is the demangled form of a C++ symbol, we will fail
1309 to find a match during the binary search of the non-encoded names, but
1310 for now we don't worry about the slight inefficiency of looking for
1311 a match we'll never find, since it will go pretty quick. Once the
1312 binary search terminates, we drop through and do a straight linear
1313 search on the symbols. Each symbol which is marked as being a C++
1314 symbol (language_cplus set) has both the encoded and non-encoded names
1317 If MANGLED_NAME is non-NULL, verify that any symbol we find has this
1318 particular mangled name.
1322 lookup_block_symbol (register const struct block *block, const char *name,
1323 const char *mangled_name,
1324 const namespace_enum namespace)
1326 register int bot, top, inc;
1327 register struct symbol *sym;
1328 register struct symbol *sym_found = NULL;
1329 register int do_linear_search = 1;
1331 if (BLOCK_HASHTABLE (block))
1333 unsigned int hash_index;
1334 hash_index = msymbol_hash_iw (name);
1335 hash_index = hash_index % BLOCK_BUCKETS (block);
1336 for (sym = BLOCK_BUCKET (block, hash_index); sym; sym = sym->hash_next)
1338 if (SYMBOL_NAMESPACE (sym) == namespace
1340 ? strcmp (SYMBOL_NAME (sym), mangled_name) == 0
1341 : SYMBOL_MATCHES_NAME (sym, name)))
1347 /* If the blocks's symbols were sorted, start with a binary search. */
1349 if (BLOCK_SHOULD_SORT (block))
1351 /* Reset the linear search flag so if the binary search fails, we
1352 won't do the linear search once unless we find some reason to
1355 do_linear_search = 0;
1356 top = BLOCK_NSYMS (block);
1359 /* Advance BOT to not far before the first symbol whose name is NAME. */
1363 inc = (top - bot + 1);
1364 /* No need to keep binary searching for the last few bits worth. */
1369 inc = (inc >> 1) + bot;
1370 sym = BLOCK_SYM (block, inc);
1371 if (!do_linear_search && (SYMBOL_LANGUAGE (sym) == language_java))
1373 do_linear_search = 1;
1375 if (SYMBOL_SOURCE_NAME (sym)[0] < name[0])
1379 else if (SYMBOL_SOURCE_NAME (sym)[0] > name[0])
1383 else if (strcmp (SYMBOL_SOURCE_NAME (sym), name) < 0)
1393 /* Now scan forward until we run out of symbols, find one whose
1394 name is greater than NAME, or find one we want. If there is
1395 more than one symbol with the right name and namespace, we
1396 return the first one; I believe it is now impossible for us
1397 to encounter two symbols with the same name and namespace
1398 here, because blocks containing argument symbols are no
1399 longer sorted. The exception is for C++, where multiple functions
1400 (cloned constructors / destructors, in particular) can have
1401 the same demangled name. So if we have a particular
1402 mangled name to match, try to do so. */
1404 top = BLOCK_NSYMS (block);
1407 sym = BLOCK_SYM (block, bot);
1408 if (SYMBOL_NAMESPACE (sym) == namespace
1410 ? strcmp (SYMBOL_NAME (sym), mangled_name) == 0
1411 : SYMBOL_MATCHES_NAME (sym, name)))
1415 if (SYMBOL_SOURCE_NAME (sym)[0] > name[0])
1423 /* Here if block isn't sorted, or we fail to find a match during the
1424 binary search above. If during the binary search above, we find a
1425 symbol which is a Java symbol, then we have re-enabled the linear
1426 search flag which was reset when starting the binary search.
1428 This loop is equivalent to the loop above, but hacked greatly for speed.
1430 Note that parameter symbols do not always show up last in the
1431 list; this loop makes sure to take anything else other than
1432 parameter symbols first; it only uses parameter symbols as a
1433 last resort. Note that this only takes up extra computation
1436 if (do_linear_search)
1438 top = BLOCK_NSYMS (block);
1442 sym = BLOCK_SYM (block, bot);
1443 if (SYMBOL_NAMESPACE (sym) == namespace
1445 ? strcmp (SYMBOL_NAME (sym), mangled_name) == 0
1446 : SYMBOL_MATCHES_NAME (sym, name)))
1448 /* If SYM has aliases, then use any alias that is active
1449 at the current PC. If no alias is active at the current
1450 PC, then use the main symbol.
1452 ?!? Is checking the current pc correct? Is this routine
1453 ever called to look up a symbol from another context?
1455 FIXME: No, it's not correct. If someone sets a
1456 conditional breakpoint at an address, then the
1457 breakpoint's `struct expression' should refer to the
1458 `struct symbol' appropriate for the breakpoint's
1459 address, which may not be the PC.
1461 Even if it were never called from another context,
1462 it's totally bizarre for lookup_symbol's behavior to
1463 depend on the value of the inferior's current PC. We
1464 should pass in the appropriate PC as well as the
1465 block. The interface to lookup_symbol should change
1466 to require the caller to provide a PC. */
1468 if (SYMBOL_ALIASES (sym))
1469 sym = find_active_alias (sym, read_pc ());
1472 if (SYMBOL_CLASS (sym) != LOC_ARG &&
1473 SYMBOL_CLASS (sym) != LOC_LOCAL_ARG &&
1474 SYMBOL_CLASS (sym) != LOC_REF_ARG &&
1475 SYMBOL_CLASS (sym) != LOC_REGPARM &&
1476 SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR &&
1477 SYMBOL_CLASS (sym) != LOC_BASEREG_ARG)
1485 return (sym_found); /* Will be NULL if not found. */
1488 /* Given a main symbol SYM and ADDR, search through the alias
1489 list to determine if an alias is active at ADDR and return
1492 If no alias is active, then return SYM. */
1494 static struct symbol *
1495 find_active_alias (struct symbol *sym, CORE_ADDR addr)
1497 struct range_list *r;
1498 struct alias_list *aliases;
1500 /* If we have aliases, check them first. */
1501 aliases = SYMBOL_ALIASES (sym);
1505 if (!SYMBOL_RANGES (aliases->sym))
1506 return aliases->sym;
1507 for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next)
1509 if (r->start <= addr && r->end > addr)
1510 return aliases->sym;
1512 aliases = aliases->next;
1515 /* Nothing found, return the main symbol. */
1520 /* Return the symbol for the function which contains a specified
1521 lexical block, described by a struct block BL. */
1524 block_function (struct block *bl)
1526 while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0)
1527 bl = BLOCK_SUPERBLOCK (bl);
1529 return BLOCK_FUNCTION (bl);
1532 /* Find the symtab associated with PC and SECTION. Look through the
1533 psymtabs and read in another symtab if necessary. */
1536 find_pc_sect_symtab (CORE_ADDR pc, asection *section)
1538 register struct block *b;
1539 struct blockvector *bv;
1540 register struct symtab *s = NULL;
1541 register struct symtab *best_s = NULL;
1542 register struct partial_symtab *ps;
1543 register struct objfile *objfile;
1544 CORE_ADDR distance = 0;
1545 struct minimal_symbol *msymbol;
1547 /* If we know that this is not a text address, return failure. This is
1548 necessary because we loop based on the block's high and low code
1549 addresses, which do not include the data ranges, and because
1550 we call find_pc_sect_psymtab which has a similar restriction based
1551 on the partial_symtab's texthigh and textlow. */
1552 msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
1554 && (msymbol->type == mst_data
1555 || msymbol->type == mst_bss
1556 || msymbol->type == mst_abs
1557 || msymbol->type == mst_file_data
1558 || msymbol->type == mst_file_bss))
1561 /* Search all symtabs for the one whose file contains our address, and which
1562 is the smallest of all the ones containing the address. This is designed
1563 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1564 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1565 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1567 This happens for native ecoff format, where code from included files
1568 gets its own symtab. The symtab for the included file should have
1569 been read in already via the dependency mechanism.
1570 It might be swifter to create several symtabs with the same name
1571 like xcoff does (I'm not sure).
1573 It also happens for objfiles that have their functions reordered.
1574 For these, the symtab we are looking for is not necessarily read in. */
1576 ALL_SYMTABS (objfile, s)
1578 bv = BLOCKVECTOR (s);
1579 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1581 if (BLOCK_START (b) <= pc
1582 && BLOCK_END (b) > pc
1584 || BLOCK_END (b) - BLOCK_START (b) < distance))
1586 /* For an objfile that has its functions reordered,
1587 find_pc_psymtab will find the proper partial symbol table
1588 and we simply return its corresponding symtab. */
1589 /* In order to better support objfiles that contain both
1590 stabs and coff debugging info, we continue on if a psymtab
1592 if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs)
1594 ps = find_pc_sect_psymtab (pc, section);
1596 return PSYMTAB_TO_SYMTAB (ps);
1601 struct symbol *sym = NULL;
1603 ALL_BLOCK_SYMBOLS (b, i, sym)
1605 fixup_symbol_section (sym, objfile);
1606 if (section == SYMBOL_BFD_SECTION (sym))
1609 if ((i >= BLOCK_BUCKETS (b)) && (sym == NULL))
1610 continue; /* no symbol in this symtab matches section */
1612 distance = BLOCK_END (b) - BLOCK_START (b);
1621 ps = find_pc_sect_psymtab (pc, section);
1625 /* Might want to error() here (in case symtab is corrupt and
1626 will cause a core dump), but maybe we can successfully
1627 continue, so let's not. */
1629 (Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n",
1631 s = PSYMTAB_TO_SYMTAB (ps);
1636 /* Find the symtab associated with PC. Look through the psymtabs and
1637 read in another symtab if necessary. Backward compatibility, no section */
1640 find_pc_symtab (CORE_ADDR pc)
1642 return find_pc_sect_symtab (pc, find_pc_mapped_section (pc));
1648 /* Find the closest symbol value (of any sort -- function or variable)
1649 for a given address value. Slow but complete. (currently unused,
1650 mainly because it is too slow. We could fix it if each symtab and
1651 psymtab had contained in it the addresses ranges of each of its
1652 sections, which also would be required to make things like "info
1653 line *0x2345" cause psymtabs to be converted to symtabs). */
1656 find_addr_symbol (CORE_ADDR addr, struct symtab **symtabp, CORE_ADDR *symaddrp)
1658 struct symtab *symtab, *best_symtab;
1659 struct objfile *objfile;
1660 register int bot, top;
1661 register struct symbol *sym;
1662 register CORE_ADDR sym_addr;
1663 struct block *block;
1666 /* Info on best symbol seen so far */
1668 register CORE_ADDR best_sym_addr = 0;
1669 struct symbol *best_sym = 0;
1671 /* FIXME -- we should pull in all the psymtabs, too! */
1672 ALL_SYMTABS (objfile, symtab)
1674 /* Search the global and static blocks in this symtab for
1675 the closest symbol-address to the desired address. */
1677 for (blocknum = GLOBAL_BLOCK; blocknum <= STATIC_BLOCK; blocknum++)
1680 block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), blocknum);
1681 ALL_BLOCK_SYMBOLS (block, bot, sym)
1683 switch (SYMBOL_CLASS (sym))
1687 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1691 sym_addr = SYMBOL_VALUE_ADDRESS (sym);
1692 /* An indirect symbol really lives at *sym_addr,
1693 * so an indirection needs to be done.
1694 * However, I am leaving this commented out because it's
1695 * expensive, and it's possible that symbolization
1696 * could be done without an active process (in
1697 * case this read_memory will fail). RT
1698 sym_addr = read_memory_unsigned_integer
1699 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1704 sym_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
1711 if (sym_addr <= addr)
1712 if (sym_addr > best_sym_addr)
1714 /* Quit if we found an exact match. */
1716 best_sym_addr = sym_addr;
1717 best_symtab = symtab;
1718 if (sym_addr == addr)
1727 *symtabp = best_symtab;
1729 *symaddrp = best_sym_addr;
1734 /* Find the source file and line number for a given PC value and SECTION.
1735 Return a structure containing a symtab pointer, a line number,
1736 and a pc range for the entire source line.
1737 The value's .pc field is NOT the specified pc.
1738 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1739 use the line that ends there. Otherwise, in that case, the line
1740 that begins there is used. */
1742 /* The big complication here is that a line may start in one file, and end just
1743 before the start of another file. This usually occurs when you #include
1744 code in the middle of a subroutine. To properly find the end of a line's PC
1745 range, we must search all symtabs associated with this compilation unit, and
1746 find the one whose first PC is closer than that of the next line in this
1749 /* If it's worth the effort, we could be using a binary search. */
1751 struct symtab_and_line
1752 find_pc_sect_line (CORE_ADDR pc, struct sec *section, int notcurrent)
1755 register struct linetable *l;
1758 register struct linetable_entry *item;
1759 struct symtab_and_line val;
1760 struct blockvector *bv;
1761 struct minimal_symbol *msymbol;
1762 struct minimal_symbol *mfunsym;
1764 /* Info on best line seen so far, and where it starts, and its file. */
1766 struct linetable_entry *best = NULL;
1767 CORE_ADDR best_end = 0;
1768 struct symtab *best_symtab = 0;
1770 /* Store here the first line number
1771 of a file which contains the line at the smallest pc after PC.
1772 If we don't find a line whose range contains PC,
1773 we will use a line one less than this,
1774 with a range from the start of that file to the first line's pc. */
1775 struct linetable_entry *alt = NULL;
1776 struct symtab *alt_symtab = 0;
1778 /* Info on best line seen in this file. */
1780 struct linetable_entry *prev;
1782 /* If this pc is not from the current frame,
1783 it is the address of the end of a call instruction.
1784 Quite likely that is the start of the following statement.
1785 But what we want is the statement containing the instruction.
1786 Fudge the pc to make sure we get that. */
1788 INIT_SAL (&val); /* initialize to zeroes */
1790 /* It's tempting to assume that, if we can't find debugging info for
1791 any function enclosing PC, that we shouldn't search for line
1792 number info, either. However, GAS can emit line number info for
1793 assembly files --- very helpful when debugging hand-written
1794 assembly code. In such a case, we'd have no debug info for the
1795 function, but we would have line info. */
1800 /* elz: added this because this function returned the wrong
1801 information if the pc belongs to a stub (import/export)
1802 to call a shlib function. This stub would be anywhere between
1803 two functions in the target, and the line info was erroneously
1804 taken to be the one of the line before the pc.
1806 /* RT: Further explanation:
1808 * We have stubs (trampolines) inserted between procedures.
1810 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1811 * exists in the main image.
1813 * In the minimal symbol table, we have a bunch of symbols
1814 * sorted by start address. The stubs are marked as "trampoline",
1815 * the others appear as text. E.g.:
1817 * Minimal symbol table for main image
1818 * main: code for main (text symbol)
1819 * shr1: stub (trampoline symbol)
1820 * foo: code for foo (text symbol)
1822 * Minimal symbol table for "shr1" image:
1824 * shr1: code for shr1 (text symbol)
1827 * So the code below is trying to detect if we are in the stub
1828 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1829 * and if found, do the symbolization from the real-code address
1830 * rather than the stub address.
1832 * Assumptions being made about the minimal symbol table:
1833 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1834 * if we're really in the trampoline. If we're beyond it (say
1835 * we're in "foo" in the above example), it'll have a closer
1836 * symbol (the "foo" text symbol for example) and will not
1837 * return the trampoline.
1838 * 2. lookup_minimal_symbol_text() will find a real text symbol
1839 * corresponding to the trampoline, and whose address will
1840 * be different than the trampoline address. I put in a sanity
1841 * check for the address being the same, to avoid an
1842 * infinite recursion.
1844 msymbol = lookup_minimal_symbol_by_pc (pc);
1845 if (msymbol != NULL)
1846 if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline)
1848 mfunsym = lookup_minimal_symbol_text (SYMBOL_NAME (msymbol), NULL, NULL);
1849 if (mfunsym == NULL)
1850 /* I eliminated this warning since it is coming out
1851 * in the following situation:
1852 * gdb shmain // test program with shared libraries
1853 * (gdb) break shr1 // function in shared lib
1854 * Warning: In stub for ...
1855 * In the above situation, the shared lib is not loaded yet,
1856 * so of course we can't find the real func/line info,
1857 * but the "break" still works, and the warning is annoying.
1858 * So I commented out the warning. RT */
1859 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1861 else if (SYMBOL_VALUE (mfunsym) == SYMBOL_VALUE (msymbol))
1862 /* Avoid infinite recursion */
1863 /* See above comment about why warning is commented out */
1864 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1867 return find_pc_line (SYMBOL_VALUE (mfunsym), 0);
1871 s = find_pc_sect_symtab (pc, section);
1874 /* if no symbol information, return previous pc */
1881 bv = BLOCKVECTOR (s);
1883 /* Look at all the symtabs that share this blockvector.
1884 They all have the same apriori range, that we found was right;
1885 but they have different line tables. */
1887 for (; s && BLOCKVECTOR (s) == bv; s = s->next)
1889 /* Find the best line in this symtab. */
1896 /* I think len can be zero if the symtab lacks line numbers
1897 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1898 I'm not sure which, and maybe it depends on the symbol
1904 item = l->item; /* Get first line info */
1906 /* Is this file's first line closer than the first lines of other files?
1907 If so, record this file, and its first line, as best alternate. */
1908 if (item->pc > pc && (!alt || item->pc < alt->pc))
1914 for (i = 0; i < len; i++, item++)
1916 /* Leave prev pointing to the linetable entry for the last line
1917 that started at or before PC. */
1924 /* At this point, prev points at the line whose start addr is <= pc, and
1925 item points at the next line. If we ran off the end of the linetable
1926 (pc >= start of the last line), then prev == item. If pc < start of
1927 the first line, prev will not be set. */
1929 /* Is this file's best line closer than the best in the other files?
1930 If so, record this file, and its best line, as best so far. */
1932 if (prev && (!best || prev->pc > best->pc))
1937 /* Discard BEST_END if it's before the PC of the current BEST. */
1938 if (best_end <= best->pc)
1942 /* If another line (denoted by ITEM) is in the linetable and its
1943 PC is after BEST's PC, but before the current BEST_END, then
1944 use ITEM's PC as the new best_end. */
1945 if (best && i < len && item->pc > best->pc
1946 && (best_end == 0 || best_end > item->pc))
1947 best_end = item->pc;
1953 { /* If we didn't find any line # info, just
1959 val.symtab = alt_symtab;
1960 val.line = alt->line - 1;
1962 /* Don't return line 0, that means that we didn't find the line. */
1966 val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1970 else if (best->line == 0)
1972 /* If our best fit is in a range of PC's for which no line
1973 number info is available (line number is zero) then we didn't
1974 find any valid line information. */
1979 val.symtab = best_symtab;
1980 val.line = best->line;
1982 if (best_end && (!alt || best_end < alt->pc))
1987 val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
1989 val.section = section;
1993 /* Backward compatibility (no section) */
1995 struct symtab_and_line
1996 find_pc_line (CORE_ADDR pc, int notcurrent)
2000 section = find_pc_overlay (pc);
2001 if (pc_in_unmapped_range (pc, section))
2002 pc = overlay_mapped_address (pc, section);
2003 return find_pc_sect_line (pc, section, notcurrent);
2006 /* Find line number LINE in any symtab whose name is the same as
2009 If found, return the symtab that contains the linetable in which it was
2010 found, set *INDEX to the index in the linetable of the best entry
2011 found, and set *EXACT_MATCH nonzero if the value returned is an
2014 If not found, return NULL. */
2017 find_line_symtab (struct symtab *symtab, int line, int *index, int *exact_match)
2021 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
2025 struct linetable *best_linetable;
2026 struct symtab *best_symtab;
2028 /* First try looking it up in the given symtab. */
2029 best_linetable = LINETABLE (symtab);
2030 best_symtab = symtab;
2031 best_index = find_line_common (best_linetable, line, &exact);
2032 if (best_index < 0 || !exact)
2034 /* Didn't find an exact match. So we better keep looking for
2035 another symtab with the same name. In the case of xcoff,
2036 multiple csects for one source file (produced by IBM's FORTRAN
2037 compiler) produce multiple symtabs (this is unavoidable
2038 assuming csects can be at arbitrary places in memory and that
2039 the GLOBAL_BLOCK of a symtab has a begin and end address). */
2041 /* BEST is the smallest linenumber > LINE so far seen,
2042 or 0 if none has been seen so far.
2043 BEST_INDEX and BEST_LINETABLE identify the item for it. */
2046 struct objfile *objfile;
2049 if (best_index >= 0)
2050 best = best_linetable->item[best_index].line;
2054 ALL_SYMTABS (objfile, s)
2056 struct linetable *l;
2059 if (!STREQ (symtab->filename, s->filename))
2062 ind = find_line_common (l, line, &exact);
2072 if (best == 0 || l->item[ind].line < best)
2074 best = l->item[ind].line;
2087 *index = best_index;
2089 *exact_match = exact;
2094 /* Set the PC value for a given source file and line number and return true.
2095 Returns zero for invalid line number (and sets the PC to 0).
2096 The source file is specified with a struct symtab. */
2099 find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc)
2101 struct linetable *l;
2108 symtab = find_line_symtab (symtab, line, &ind, NULL);
2111 l = LINETABLE (symtab);
2112 *pc = l->item[ind].pc;
2119 /* Find the range of pc values in a line.
2120 Store the starting pc of the line into *STARTPTR
2121 and the ending pc (start of next line) into *ENDPTR.
2122 Returns 1 to indicate success.
2123 Returns 0 if could not find the specified line. */
2126 find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr,
2129 CORE_ADDR startaddr;
2130 struct symtab_and_line found_sal;
2133 if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr))
2136 /* This whole function is based on address. For example, if line 10 has
2137 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
2138 "info line *0x123" should say the line goes from 0x100 to 0x200
2139 and "info line *0x355" should say the line goes from 0x300 to 0x400.
2140 This also insures that we never give a range like "starts at 0x134
2141 and ends at 0x12c". */
2143 found_sal = find_pc_sect_line (startaddr, sal.section, 0);
2144 if (found_sal.line != sal.line)
2146 /* The specified line (sal) has zero bytes. */
2147 *startptr = found_sal.pc;
2148 *endptr = found_sal.pc;
2152 *startptr = found_sal.pc;
2153 *endptr = found_sal.end;
2158 /* Given a line table and a line number, return the index into the line
2159 table for the pc of the nearest line whose number is >= the specified one.
2160 Return -1 if none is found. The value is >= 0 if it is an index.
2162 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
2165 find_line_common (register struct linetable *l, register int lineno,
2171 /* BEST is the smallest linenumber > LINENO so far seen,
2172 or 0 if none has been seen so far.
2173 BEST_INDEX identifies the item for it. */
2175 int best_index = -1;
2184 for (i = 0; i < len; i++)
2186 register struct linetable_entry *item = &(l->item[i]);
2188 if (item->line == lineno)
2190 /* Return the first (lowest address) entry which matches. */
2195 if (item->line > lineno && (best == 0 || item->line < best))
2202 /* If we got here, we didn't get an exact match. */
2209 find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr)
2211 struct symtab_and_line sal;
2212 sal = find_pc_line (pc, 0);
2215 return sal.symtab != 0;
2218 /* Given a function symbol SYM, find the symtab and line for the start
2220 If the argument FUNFIRSTLINE is nonzero, we want the first line
2221 of real code inside the function. */
2223 struct symtab_and_line
2224 find_function_start_sal (struct symbol *sym, int funfirstline)
2227 struct symtab_and_line sal;
2229 pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
2230 fixup_symbol_section (sym, NULL);
2232 { /* skip "first line" of function (which is actually its prologue) */
2233 asection *section = SYMBOL_BFD_SECTION (sym);
2234 /* If function is in an unmapped overlay, use its unmapped LMA
2235 address, so that SKIP_PROLOGUE has something unique to work on */
2236 if (section_is_overlay (section) &&
2237 !section_is_mapped (section))
2238 pc = overlay_unmapped_address (pc, section);
2240 pc += FUNCTION_START_OFFSET;
2241 pc = SKIP_PROLOGUE (pc);
2243 /* For overlays, map pc back into its mapped VMA range */
2244 pc = overlay_mapped_address (pc, section);
2246 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2248 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2249 /* Convex: no need to suppress code on first line, if any */
2252 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2253 line is still part of the same function. */
2255 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end
2256 && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym)))
2258 /* First pc of next line */
2260 /* Recalculate the line number (might not be N+1). */
2261 sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0);
2269 /* If P is of the form "operator[ \t]+..." where `...' is
2270 some legitimate operator text, return a pointer to the
2271 beginning of the substring of the operator text.
2272 Otherwise, return "". */
2274 operator_chars (char *p, char **end)
2277 if (strncmp (p, "operator", 8))
2281 /* Don't get faked out by `operator' being part of a longer
2283 if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0')
2286 /* Allow some whitespace between `operator' and the operator symbol. */
2287 while (*p == ' ' || *p == '\t')
2290 /* Recognize 'operator TYPENAME'. */
2292 if (isalpha (*p) || *p == '_' || *p == '$')
2294 register char *q = p + 1;
2295 while (isalnum (*q) || *q == '_' || *q == '$')
2304 case '\\': /* regexp quoting */
2307 if (p[2] == '=') /* 'operator\*=' */
2309 else /* 'operator\*' */
2313 else if (p[1] == '[')
2316 error ("mismatched quoting on brackets, try 'operator\\[\\]'");
2317 else if (p[2] == '\\' && p[3] == ']')
2319 *end = p + 4; /* 'operator\[\]' */
2323 error ("nothing is allowed between '[' and ']'");
2327 /* Gratuitous qoute: skip it and move on. */
2349 if (p[0] == '-' && p[1] == '>')
2351 /* Struct pointer member operator 'operator->'. */
2354 *end = p + 3; /* 'operator->*' */
2357 else if (p[2] == '\\')
2359 *end = p + 4; /* Hopefully 'operator->\*' */
2364 *end = p + 2; /* 'operator->' */
2368 if (p[1] == '=' || p[1] == p[0])
2379 error ("`operator ()' must be specified without whitespace in `()'");
2384 error ("`operator ?:' must be specified without whitespace in `?:'");
2389 error ("`operator []' must be specified without whitespace in `[]'");
2393 error ("`operator %s' not supported", p);
2402 /* If FILE is not already in the table of files, return zero;
2403 otherwise return non-zero. Optionally add FILE to the table if ADD
2404 is non-zero. If *FIRST is non-zero, forget the old table
2407 filename_seen (const char *file, int add, int *first)
2409 /* Table of files seen so far. */
2410 static const char **tab = NULL;
2411 /* Allocated size of tab in elements.
2412 Start with one 256-byte block (when using GNU malloc.c).
2413 24 is the malloc overhead when range checking is in effect. */
2414 static int tab_alloc_size = (256 - 24) / sizeof (char *);
2415 /* Current size of tab in elements. */
2416 static int tab_cur_size;
2422 tab = (const char **) xmalloc (tab_alloc_size * sizeof (*tab));
2426 /* Is FILE in tab? */
2427 for (p = tab; p < tab + tab_cur_size; p++)
2428 if (strcmp (*p, file) == 0)
2431 /* No; maybe add it to tab. */
2434 if (tab_cur_size == tab_alloc_size)
2436 tab_alloc_size *= 2;
2437 tab = (const char **) xrealloc ((char *) tab,
2438 tab_alloc_size * sizeof (*tab));
2440 tab[tab_cur_size++] = file;
2446 /* Slave routine for sources_info. Force line breaks at ,'s.
2447 NAME is the name to print and *FIRST is nonzero if this is the first
2448 name printed. Set *FIRST to zero. */
2450 output_source_filename (char *name, int *first)
2452 /* Since a single source file can result in several partial symbol
2453 tables, we need to avoid printing it more than once. Note: if
2454 some of the psymtabs are read in and some are not, it gets
2455 printed both under "Source files for which symbols have been
2456 read" and "Source files for which symbols will be read in on
2457 demand". I consider this a reasonable way to deal with the
2458 situation. I'm not sure whether this can also happen for
2459 symtabs; it doesn't hurt to check. */
2461 /* Was NAME already seen? */
2462 if (filename_seen (name, 1, first))
2464 /* Yes; don't print it again. */
2467 /* No; print it and reset *FIRST. */
2474 printf_filtered (", ");
2478 fputs_filtered (name, gdb_stdout);
2482 sources_info (char *ignore, int from_tty)
2484 register struct symtab *s;
2485 register struct partial_symtab *ps;
2486 register struct objfile *objfile;
2489 if (!have_full_symbols () && !have_partial_symbols ())
2491 error ("No symbol table is loaded. Use the \"file\" command.");
2494 printf_filtered ("Source files for which symbols have been read in:\n\n");
2497 ALL_SYMTABS (objfile, s)
2499 output_source_filename (s->filename, &first);
2501 printf_filtered ("\n\n");
2503 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
2506 ALL_PSYMTABS (objfile, ps)
2510 output_source_filename (ps->filename, &first);
2513 printf_filtered ("\n");
2517 file_matches (char *file, char *files[], int nfiles)
2521 if (file != NULL && nfiles != 0)
2523 for (i = 0; i < nfiles; i++)
2525 if (strcmp (files[i], lbasename (file)) == 0)
2529 else if (nfiles == 0)
2534 /* Free any memory associated with a search. */
2536 free_search_symbols (struct symbol_search *symbols)
2538 struct symbol_search *p;
2539 struct symbol_search *next;
2541 for (p = symbols; p != NULL; p = next)
2549 do_free_search_symbols_cleanup (void *symbols)
2551 free_search_symbols (symbols);
2555 make_cleanup_free_search_symbols (struct symbol_search *symbols)
2557 return make_cleanup (do_free_search_symbols_cleanup, symbols);
2560 /* Helper function for sort_search_symbols and qsort. Can only
2561 sort symbols, not minimal symbols. */
2563 compare_search_syms (const void *sa, const void *sb)
2565 struct symbol_search **sym_a = (struct symbol_search **) sa;
2566 struct symbol_search **sym_b = (struct symbol_search **) sb;
2568 return strcmp (SYMBOL_SOURCE_NAME ((*sym_a)->symbol),
2569 SYMBOL_SOURCE_NAME ((*sym_b)->symbol));
2572 /* Sort the ``nfound'' symbols in the list after prevtail. Leave
2573 prevtail where it is, but update its next pointer to point to
2574 the first of the sorted symbols. */
2575 static struct symbol_search *
2576 sort_search_symbols (struct symbol_search *prevtail, int nfound)
2578 struct symbol_search **symbols, *symp, *old_next;
2581 symbols = (struct symbol_search **) xmalloc (sizeof (struct symbol_search *)
2583 symp = prevtail->next;
2584 for (i = 0; i < nfound; i++)
2589 /* Generally NULL. */
2592 qsort (symbols, nfound, sizeof (struct symbol_search *),
2593 compare_search_syms);
2596 for (i = 0; i < nfound; i++)
2598 symp->next = symbols[i];
2601 symp->next = old_next;
2607 /* Search the symbol table for matches to the regular expression REGEXP,
2608 returning the results in *MATCHES.
2610 Only symbols of KIND are searched:
2611 FUNCTIONS_NAMESPACE - search all functions
2612 TYPES_NAMESPACE - search all type names
2613 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
2614 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
2615 and constants (enums)
2617 free_search_symbols should be called when *MATCHES is no longer needed.
2619 The results are sorted locally; each symtab's global and static blocks are
2620 separately alphabetized.
2623 search_symbols (char *regexp, namespace_enum kind, int nfiles, char *files[],
2624 struct symbol_search **matches)
2626 register struct symtab *s;
2627 register struct partial_symtab *ps;
2628 register struct blockvector *bv;
2629 struct blockvector *prev_bv = 0;
2630 register struct block *b;
2633 register struct symbol *sym;
2634 struct partial_symbol **psym;
2635 struct objfile *objfile;
2636 struct minimal_symbol *msymbol;
2639 static enum minimal_symbol_type types[]
2641 {mst_data, mst_text, mst_abs, mst_unknown};
2642 static enum minimal_symbol_type types2[]
2644 {mst_bss, mst_file_text, mst_abs, mst_unknown};
2645 static enum minimal_symbol_type types3[]
2647 {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown};
2648 static enum minimal_symbol_type types4[]
2650 {mst_file_bss, mst_text, mst_abs, mst_unknown};
2651 enum minimal_symbol_type ourtype;
2652 enum minimal_symbol_type ourtype2;
2653 enum minimal_symbol_type ourtype3;
2654 enum minimal_symbol_type ourtype4;
2655 struct symbol_search *sr;
2656 struct symbol_search *psr;
2657 struct symbol_search *tail;
2658 struct cleanup *old_chain = NULL;
2660 if (kind < VARIABLES_NAMESPACE)
2661 error ("must search on specific namespace");
2663 ourtype = types[(int) (kind - VARIABLES_NAMESPACE)];
2664 ourtype2 = types2[(int) (kind - VARIABLES_NAMESPACE)];
2665 ourtype3 = types3[(int) (kind - VARIABLES_NAMESPACE)];
2666 ourtype4 = types4[(int) (kind - VARIABLES_NAMESPACE)];
2668 sr = *matches = NULL;
2673 /* Make sure spacing is right for C++ operators.
2674 This is just a courtesy to make the matching less sensitive
2675 to how many spaces the user leaves between 'operator'
2676 and <TYPENAME> or <OPERATOR>. */
2678 char *opname = operator_chars (regexp, &opend);
2681 int fix = -1; /* -1 means ok; otherwise number of spaces needed. */
2682 if (isalpha (*opname) || *opname == '_' || *opname == '$')
2684 /* There should 1 space between 'operator' and 'TYPENAME'. */
2685 if (opname[-1] != ' ' || opname[-2] == ' ')
2690 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
2691 if (opname[-1] == ' ')
2694 /* If wrong number of spaces, fix it. */
2697 char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1);
2698 sprintf (tmp, "operator%.*s%s", fix, " ", opname);
2703 if (0 != (val = re_comp (regexp)))
2704 error ("Invalid regexp (%s): %s", val, regexp);
2707 /* Search through the partial symtabs *first* for all symbols
2708 matching the regexp. That way we don't have to reproduce all of
2709 the machinery below. */
2711 ALL_PSYMTABS (objfile, ps)
2713 struct partial_symbol **bound, **gbound, **sbound;
2719 gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms;
2720 sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms;
2723 /* Go through all of the symbols stored in a partial
2724 symtab in one loop. */
2725 psym = objfile->global_psymbols.list + ps->globals_offset;
2730 if (bound == gbound && ps->n_static_syms != 0)
2732 psym = objfile->static_psymbols.list + ps->statics_offset;
2743 /* If it would match (logic taken from loop below)
2744 load the file and go on to the next one */
2745 if (file_matches (ps->filename, files, nfiles)
2746 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (*psym))
2747 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (*psym) != LOC_TYPEDEF
2748 && SYMBOL_CLASS (*psym) != LOC_BLOCK)
2749 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK)
2750 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_TYPEDEF)
2751 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK))))
2753 PSYMTAB_TO_SYMTAB (ps);
2761 /* Here, we search through the minimal symbol tables for functions
2762 and variables that match, and force their symbols to be read.
2763 This is in particular necessary for demangled variable names,
2764 which are no longer put into the partial symbol tables.
2765 The symbol will then be found during the scan of symtabs below.
2767 For functions, find_pc_symtab should succeed if we have debug info
2768 for the function, for variables we have to call lookup_symbol
2769 to determine if the variable has debug info.
2770 If the lookup fails, set found_misc so that we will rescan to print
2771 any matching symbols without debug info.
2774 if (nfiles == 0 && (kind == VARIABLES_NAMESPACE || kind == FUNCTIONS_NAMESPACE))
2776 ALL_MSYMBOLS (objfile, msymbol)
2778 if (MSYMBOL_TYPE (msymbol) == ourtype ||
2779 MSYMBOL_TYPE (msymbol) == ourtype2 ||
2780 MSYMBOL_TYPE (msymbol) == ourtype3 ||
2781 MSYMBOL_TYPE (msymbol) == ourtype4)
2783 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
2785 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))
2787 if (kind == FUNCTIONS_NAMESPACE
2788 || lookup_symbol (SYMBOL_NAME (msymbol),
2789 (struct block *) NULL,
2791 0, (struct symtab **) NULL) == NULL)
2799 ALL_SYMTABS (objfile, s)
2801 bv = BLOCKVECTOR (s);
2802 /* Often many files share a blockvector.
2803 Scan each blockvector only once so that
2804 we don't get every symbol many times.
2805 It happens that the first symtab in the list
2806 for any given blockvector is the main file. */
2808 for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
2810 struct symbol_search *prevtail = tail;
2812 b = BLOCKVECTOR_BLOCK (bv, i);
2813 ALL_BLOCK_SYMBOLS (b, j, sym)
2816 if (file_matches (s->filename, files, nfiles)
2817 && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (sym))
2818 && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (sym) != LOC_TYPEDEF
2819 && SYMBOL_CLASS (sym) != LOC_BLOCK
2820 && SYMBOL_CLASS (sym) != LOC_CONST)
2821 || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK)
2822 || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
2823 || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK))))
2826 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
2830 psr->msymbol = NULL;
2842 if (prevtail == NULL)
2844 struct symbol_search dummy;
2847 tail = sort_search_symbols (&dummy, nfound);
2850 old_chain = make_cleanup_free_search_symbols (sr);
2853 tail = sort_search_symbols (prevtail, nfound);
2859 /* If there are no eyes, avoid all contact. I mean, if there are
2860 no debug symbols, then print directly from the msymbol_vector. */
2862 if (found_misc || kind != FUNCTIONS_NAMESPACE)
2864 ALL_MSYMBOLS (objfile, msymbol)
2866 if (MSYMBOL_TYPE (msymbol) == ourtype ||
2867 MSYMBOL_TYPE (msymbol) == ourtype2 ||
2868 MSYMBOL_TYPE (msymbol) == ourtype3 ||
2869 MSYMBOL_TYPE (msymbol) == ourtype4)
2871 if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol))
2873 /* Functions: Look up by address. */
2874 if (kind != FUNCTIONS_NAMESPACE ||
2875 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))))
2877 /* Variables/Absolutes: Look up by name */
2878 if (lookup_symbol (SYMBOL_NAME (msymbol),
2879 (struct block *) NULL, VAR_NAMESPACE,
2880 0, (struct symtab **) NULL) == NULL)
2883 psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search));
2885 psr->msymbol = msymbol;
2892 old_chain = make_cleanup_free_search_symbols (sr);
2906 discard_cleanups (old_chain);
2909 /* Helper function for symtab_symbol_info, this function uses
2910 the data returned from search_symbols() to print information
2911 regarding the match to gdb_stdout.
2914 print_symbol_info (namespace_enum kind, struct symtab *s, struct symbol *sym,
2915 int block, char *last)
2917 if (last == NULL || strcmp (last, s->filename) != 0)
2919 fputs_filtered ("\nFile ", gdb_stdout);
2920 fputs_filtered (s->filename, gdb_stdout);
2921 fputs_filtered (":\n", gdb_stdout);
2924 if (kind != TYPES_NAMESPACE && block == STATIC_BLOCK)
2925 printf_filtered ("static ");
2927 /* Typedef that is not a C++ class */
2928 if (kind == TYPES_NAMESPACE
2929 && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE)
2930 typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout);
2931 /* variable, func, or typedef-that-is-c++-class */
2932 else if (kind < TYPES_NAMESPACE ||
2933 (kind == TYPES_NAMESPACE &&
2934 SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE))
2936 type_print (SYMBOL_TYPE (sym),
2937 (SYMBOL_CLASS (sym) == LOC_TYPEDEF
2938 ? "" : SYMBOL_SOURCE_NAME (sym)),
2941 printf_filtered (";\n");
2946 /* Tiemann says: "info methods was never implemented." */
2947 char *demangled_name;
2948 c_type_print_base (TYPE_FN_FIELD_TYPE (t, block),
2950 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t, block),
2952 if (TYPE_FN_FIELD_STUB (t, block))
2953 check_stub_method (TYPE_DOMAIN_TYPE (type), j, block);
2955 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t, block),
2956 DMGL_ANSI | DMGL_PARAMS);
2957 if (demangled_name == NULL)
2958 fprintf_filtered (stream, "<badly mangled name %s>",
2959 TYPE_FN_FIELD_PHYSNAME (t, block));
2962 fputs_filtered (demangled_name, stream);
2963 xfree (demangled_name);
2969 /* This help function for symtab_symbol_info() prints information
2970 for non-debugging symbols to gdb_stdout.
2973 print_msymbol_info (struct minimal_symbol *msymbol)
2977 if (TARGET_ADDR_BIT <= 32)
2978 tmp = local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol)
2979 & (CORE_ADDR) 0xffffffff,
2982 tmp = local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol),
2984 printf_filtered ("%s %s\n",
2985 tmp, SYMBOL_SOURCE_NAME (msymbol));
2988 /* This is the guts of the commands "info functions", "info types", and
2989 "info variables". It calls search_symbols to find all matches and then
2990 print_[m]symbol_info to print out some useful information about the
2994 symtab_symbol_info (char *regexp, namespace_enum kind, int from_tty)
2996 static char *classnames[]
2998 {"variable", "function", "type", "method"};
2999 struct symbol_search *symbols;
3000 struct symbol_search *p;
3001 struct cleanup *old_chain;
3002 char *last_filename = NULL;
3005 /* must make sure that if we're interrupted, symbols gets freed */
3006 search_symbols (regexp, kind, 0, (char **) NULL, &symbols);
3007 old_chain = make_cleanup_free_search_symbols (symbols);
3009 printf_filtered (regexp
3010 ? "All %ss matching regular expression \"%s\":\n"
3011 : "All defined %ss:\n",
3012 classnames[(int) (kind - VARIABLES_NAMESPACE)], regexp);
3014 for (p = symbols; p != NULL; p = p->next)
3018 if (p->msymbol != NULL)
3022 printf_filtered ("\nNon-debugging symbols:\n");
3025 print_msymbol_info (p->msymbol);
3029 print_symbol_info (kind,
3034 last_filename = p->symtab->filename;
3038 do_cleanups (old_chain);
3042 variables_info (char *regexp, int from_tty)
3044 symtab_symbol_info (regexp, VARIABLES_NAMESPACE, from_tty);
3048 functions_info (char *regexp, int from_tty)
3050 symtab_symbol_info (regexp, FUNCTIONS_NAMESPACE, from_tty);
3055 types_info (char *regexp, int from_tty)
3057 symtab_symbol_info (regexp, TYPES_NAMESPACE, from_tty);
3061 /* Tiemann says: "info methods was never implemented." */
3063 methods_info (char *regexp)
3065 symtab_symbol_info (regexp, METHODS_NAMESPACE, 0, from_tty);
3069 /* Breakpoint all functions matching regular expression. */
3072 rbreak_command_wrapper (char *regexp, int from_tty)
3074 rbreak_command (regexp, from_tty);
3078 rbreak_command (char *regexp, int from_tty)
3080 struct symbol_search *ss;
3081 struct symbol_search *p;
3082 struct cleanup *old_chain;
3084 search_symbols (regexp, FUNCTIONS_NAMESPACE, 0, (char **) NULL, &ss);
3085 old_chain = make_cleanup_free_search_symbols (ss);
3087 for (p = ss; p != NULL; p = p->next)
3089 if (p->msymbol == NULL)
3091 char *string = (char *) alloca (strlen (p->symtab->filename)
3092 + strlen (SYMBOL_NAME (p->symbol))
3094 strcpy (string, p->symtab->filename);
3095 strcat (string, ":'");
3096 strcat (string, SYMBOL_NAME (p->symbol));
3097 strcat (string, "'");
3098 break_command (string, from_tty);
3099 print_symbol_info (FUNCTIONS_NAMESPACE,
3103 p->symtab->filename);
3107 break_command (SYMBOL_NAME (p->msymbol), from_tty);
3108 printf_filtered ("<function, no debug info> %s;\n",
3109 SYMBOL_SOURCE_NAME (p->msymbol));
3113 do_cleanups (old_chain);
3117 /* Return Nonzero if block a is lexically nested within block b,
3118 or if a and b have the same pc range.
3119 Return zero otherwise. */
3121 contained_in (struct block *a, struct block *b)
3125 return BLOCK_START (a) >= BLOCK_START (b)
3126 && BLOCK_END (a) <= BLOCK_END (b);
3130 /* Helper routine for make_symbol_completion_list. */
3132 static int return_val_size;
3133 static int return_val_index;
3134 static char **return_val;
3136 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
3138 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
3139 /* Put only the mangled name on the list. */ \
3140 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
3141 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
3142 completion_list_add_name \
3143 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
3145 completion_list_add_name \
3146 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
3149 /* Test to see if the symbol specified by SYMNAME (which is already
3150 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3151 characters. If so, add it to the current completion list. */
3154 completion_list_add_name (char *symname, char *sym_text, int sym_text_len,
3155 char *text, char *word)
3160 /* clip symbols that cannot match */
3162 if (strncmp (symname, sym_text, sym_text_len) != 0)
3167 /* We have a match for a completion, so add SYMNAME to the current list
3168 of matches. Note that the name is moved to freshly malloc'd space. */
3172 if (word == sym_text)
3174 new = xmalloc (strlen (symname) + 5);
3175 strcpy (new, symname);
3177 else if (word > sym_text)
3179 /* Return some portion of symname. */
3180 new = xmalloc (strlen (symname) + 5);
3181 strcpy (new, symname + (word - sym_text));
3185 /* Return some of SYM_TEXT plus symname. */
3186 new = xmalloc (strlen (symname) + (sym_text - word) + 5);
3187 strncpy (new, word, sym_text - word);
3188 new[sym_text - word] = '\0';
3189 strcat (new, symname);
3192 if (return_val_index + 3 > return_val_size)
3194 newsize = (return_val_size *= 2) * sizeof (char *);
3195 return_val = (char **) xrealloc ((char *) return_val, newsize);
3197 return_val[return_val_index++] = new;
3198 return_val[return_val_index] = NULL;
3202 /* Return a NULL terminated array of all symbols (regardless of class)
3203 which begin by matching TEXT. If the answer is no symbols, then
3204 the return value is an array which contains only a NULL pointer.
3206 Problem: All of the symbols have to be copied because readline frees them.
3207 I'm not going to worry about this; hopefully there won't be that many. */
3210 make_symbol_completion_list (char *text, char *word)
3212 register struct symbol *sym;
3213 register struct symtab *s;
3214 register struct partial_symtab *ps;
3215 register struct minimal_symbol *msymbol;
3216 register struct objfile *objfile;
3217 register struct block *b, *surrounding_static_block = 0;
3219 struct partial_symbol **psym;
3220 /* The symbol we are completing on. Points in same buffer as text. */
3222 /* Length of sym_text. */
3225 /* Now look for the symbol we are supposed to complete on.
3226 FIXME: This should be language-specific. */
3230 char *quote_pos = NULL;
3232 /* First see if this is a quoted string. */
3234 for (p = text; *p != '\0'; ++p)
3236 if (quote_found != '\0')
3238 if (*p == quote_found)
3239 /* Found close quote. */
3241 else if (*p == '\\' && p[1] == quote_found)
3242 /* A backslash followed by the quote character
3243 doesn't end the string. */
3246 else if (*p == '\'' || *p == '"')
3252 if (quote_found == '\'')
3253 /* A string within single quotes can be a symbol, so complete on it. */
3254 sym_text = quote_pos + 1;
3255 else if (quote_found == '"')
3256 /* A double-quoted string is never a symbol, nor does it make sense
3257 to complete it any other way. */
3259 return_val = (char **) xmalloc (sizeof (char *));
3260 return_val[0] = NULL;
3265 /* It is not a quoted string. Break it based on the characters
3266 which are in symbols. */
3269 if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
3278 sym_text_len = strlen (sym_text);
3280 return_val_size = 100;
3281 return_val_index = 0;
3282 return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *));
3283 return_val[0] = NULL;
3285 /* Look through the partial symtabs for all symbols which begin
3286 by matching SYM_TEXT. Add each one that you find to the list. */
3288 ALL_PSYMTABS (objfile, ps)
3290 /* If the psymtab's been read in we'll get it when we search
3291 through the blockvector. */
3295 for (psym = objfile->global_psymbols.list + ps->globals_offset;
3296 psym < (objfile->global_psymbols.list + ps->globals_offset
3297 + ps->n_global_syms);
3300 /* If interrupted, then quit. */
3302 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
3305 for (psym = objfile->static_psymbols.list + ps->statics_offset;
3306 psym < (objfile->static_psymbols.list + ps->statics_offset
3307 + ps->n_static_syms);
3311 COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word);
3315 /* At this point scan through the misc symbol vectors and add each
3316 symbol you find to the list. Eventually we want to ignore
3317 anything that isn't a text symbol (everything else will be
3318 handled by the psymtab code above). */
3320 ALL_MSYMBOLS (objfile, msymbol)
3323 COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word);
3326 /* Search upwards from currently selected frame (so that we can
3327 complete on local vars. */
3329 for (b = get_selected_block (0); b != NULL; b = BLOCK_SUPERBLOCK (b))
3331 if (!BLOCK_SUPERBLOCK (b))
3333 surrounding_static_block = b; /* For elmin of dups */
3336 /* Also catch fields of types defined in this places which match our
3337 text string. Only complete on types visible from current context. */
3339 ALL_BLOCK_SYMBOLS (b, i, sym)
3341 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3342 if (SYMBOL_CLASS (sym) == LOC_TYPEDEF)
3344 struct type *t = SYMBOL_TYPE (sym);
3345 enum type_code c = TYPE_CODE (t);
3347 if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT)
3349 for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++)
3351 if (TYPE_FIELD_NAME (t, j))
3353 completion_list_add_name (TYPE_FIELD_NAME (t, j),
3354 sym_text, sym_text_len, text, word);
3362 /* Go through the symtabs and check the externs and statics for
3363 symbols which match. */
3365 ALL_SYMTABS (objfile, s)
3368 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
3369 ALL_BLOCK_SYMBOLS (b, i, sym)
3371 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3375 ALL_SYMTABS (objfile, s)
3378 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
3379 /* Don't do this block twice. */
3380 if (b == surrounding_static_block)
3382 ALL_BLOCK_SYMBOLS (b, i, sym)
3384 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3388 return (return_val);
3391 /* Like make_symbol_completion_list, but returns a list of symbols
3392 defined in a source file FILE. */
3395 make_file_symbol_completion_list (char *text, char *word, char *srcfile)
3397 register struct symbol *sym;
3398 register struct symtab *s;
3399 register struct block *b;
3401 /* The symbol we are completing on. Points in same buffer as text. */
3403 /* Length of sym_text. */
3406 /* Now look for the symbol we are supposed to complete on.
3407 FIXME: This should be language-specific. */
3411 char *quote_pos = NULL;
3413 /* First see if this is a quoted string. */
3415 for (p = text; *p != '\0'; ++p)
3417 if (quote_found != '\0')
3419 if (*p == quote_found)
3420 /* Found close quote. */
3422 else if (*p == '\\' && p[1] == quote_found)
3423 /* A backslash followed by the quote character
3424 doesn't end the string. */
3427 else if (*p == '\'' || *p == '"')
3433 if (quote_found == '\'')
3434 /* A string within single quotes can be a symbol, so complete on it. */
3435 sym_text = quote_pos + 1;
3436 else if (quote_found == '"')
3437 /* A double-quoted string is never a symbol, nor does it make sense
3438 to complete it any other way. */
3440 return_val = (char **) xmalloc (sizeof (char *));
3441 return_val[0] = NULL;
3446 /* It is not a quoted string. Break it based on the characters
3447 which are in symbols. */
3450 if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
3459 sym_text_len = strlen (sym_text);
3461 return_val_size = 10;
3462 return_val_index = 0;
3463 return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *));
3464 return_val[0] = NULL;
3466 /* Find the symtab for SRCFILE (this loads it if it was not yet read
3468 s = lookup_symtab (srcfile);
3471 /* Maybe they typed the file with leading directories, while the
3472 symbol tables record only its basename. */
3473 const char *tail = lbasename (srcfile);
3476 s = lookup_symtab (tail);
3479 /* If we have no symtab for that file, return an empty list. */
3481 return (return_val);
3483 /* Go through this symtab and check the externs and statics for
3484 symbols which match. */
3486 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
3487 ALL_BLOCK_SYMBOLS (b, i, sym)
3489 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3492 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
3493 ALL_BLOCK_SYMBOLS (b, i, sym)
3495 COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
3498 return (return_val);
3501 /* A helper function for make_source_files_completion_list. It adds
3502 another file name to a list of possible completions, growing the
3503 list as necessary. */
3506 add_filename_to_list (const char *fname, char *text, char *word,
3507 char ***list, int *list_used, int *list_alloced)
3510 size_t fnlen = strlen (fname);
3512 if (*list_used + 1 >= *list_alloced)
3515 *list = (char **) xrealloc ((char *) *list,
3516 *list_alloced * sizeof (char *));
3521 /* Return exactly fname. */
3522 new = xmalloc (fnlen + 5);
3523 strcpy (new, fname);
3525 else if (word > text)
3527 /* Return some portion of fname. */
3528 new = xmalloc (fnlen + 5);
3529 strcpy (new, fname + (word - text));
3533 /* Return some of TEXT plus fname. */
3534 new = xmalloc (fnlen + (text - word) + 5);
3535 strncpy (new, word, text - word);
3536 new[text - word] = '\0';
3537 strcat (new, fname);
3539 (*list)[*list_used] = new;
3540 (*list)[++*list_used] = NULL;
3544 not_interesting_fname (const char *fname)
3546 static const char *illegal_aliens[] = {
3547 "_globals_", /* inserted by coff_symtab_read */
3552 for (i = 0; illegal_aliens[i]; i++)
3554 if (strcmp (fname, illegal_aliens[i]) == 0)
3560 /* Return a NULL terminated array of all source files whose names
3561 begin with matching TEXT. The file names are looked up in the
3562 symbol tables of this program. If the answer is no matchess, then
3563 the return value is an array which contains only a NULL pointer. */
3566 make_source_files_completion_list (char *text, char *word)
3568 register struct symtab *s;
3569 register struct partial_symtab *ps;
3570 register struct objfile *objfile;
3572 int list_alloced = 1;
3574 size_t text_len = strlen (text);
3575 char **list = (char **) xmalloc (list_alloced * sizeof (char *));
3576 const char *base_name;
3580 if (!have_full_symbols () && !have_partial_symbols ())
3583 ALL_SYMTABS (objfile, s)
3585 if (not_interesting_fname (s->filename))
3587 if (!filename_seen (s->filename, 1, &first)
3588 #if HAVE_DOS_BASED_FILE_SYSTEM
3589 && strncasecmp (s->filename, text, text_len) == 0
3591 && strncmp (s->filename, text, text_len) == 0
3595 /* This file matches for a completion; add it to the current
3597 add_filename_to_list (s->filename, text, word,
3598 &list, &list_used, &list_alloced);
3602 /* NOTE: We allow the user to type a base name when the
3603 debug info records leading directories, but not the other
3604 way around. This is what subroutines of breakpoint
3605 command do when they parse file names. */
3606 base_name = lbasename (s->filename);
3607 if (base_name != s->filename
3608 && !filename_seen (base_name, 1, &first)
3609 #if HAVE_DOS_BASED_FILE_SYSTEM
3610 && strncasecmp (base_name, text, text_len) == 0
3612 && strncmp (base_name, text, text_len) == 0
3615 add_filename_to_list (base_name, text, word,
3616 &list, &list_used, &list_alloced);
3620 ALL_PSYMTABS (objfile, ps)
3622 if (not_interesting_fname (ps->filename))
3626 if (!filename_seen (ps->filename, 1, &first)
3627 #if HAVE_DOS_BASED_FILE_SYSTEM
3628 && strncasecmp (ps->filename, text, text_len) == 0
3630 && strncmp (ps->filename, text, text_len) == 0
3634 /* This file matches for a completion; add it to the
3635 current list of matches. */
3636 add_filename_to_list (ps->filename, text, word,
3637 &list, &list_used, &list_alloced);
3642 base_name = lbasename (ps->filename);
3643 if (base_name != ps->filename
3644 && !filename_seen (base_name, 1, &first)
3645 #if HAVE_DOS_BASED_FILE_SYSTEM
3646 && strncasecmp (base_name, text, text_len) == 0
3648 && strncmp (base_name, text, text_len) == 0
3651 add_filename_to_list (base_name, text, word,
3652 &list, &list_used, &list_alloced);
3660 /* Determine if PC is in the prologue of a function. The prologue is the area
3661 between the first instruction of a function, and the first executable line.
3662 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
3664 If non-zero, func_start is where we think the prologue starts, possibly
3665 by previous examination of symbol table information.
3669 in_prologue (CORE_ADDR pc, CORE_ADDR func_start)
3671 struct symtab_and_line sal;
3672 CORE_ADDR func_addr, func_end;
3674 /* We have several sources of information we can consult to figure
3676 - Compilers usually emit line number info that marks the prologue
3677 as its own "source line". So the ending address of that "line"
3678 is the end of the prologue. If available, this is the most
3680 - The minimal symbols and partial symbols, which can usually tell
3681 us the starting and ending addresses of a function.
3682 - If we know the function's start address, we can call the
3683 architecture-defined SKIP_PROLOGUE function to analyze the
3684 instruction stream and guess where the prologue ends.
3685 - Our `func_start' argument; if non-zero, this is the caller's
3686 best guess as to the function's entry point. At the time of
3687 this writing, handle_inferior_event doesn't get this right, so
3688 it should be our last resort. */
3690 /* Consult the partial symbol table, to find which function
3692 if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end))
3694 CORE_ADDR prologue_end;
3696 /* We don't even have minsym information, so fall back to using
3697 func_start, if given. */
3699 return 1; /* We *might* be in a prologue. */
3701 prologue_end = SKIP_PROLOGUE (func_start);
3703 return func_start <= pc && pc < prologue_end;
3706 /* If we have line number information for the function, that's
3707 usually pretty reliable. */
3708 sal = find_pc_line (func_addr, 0);
3710 /* Now sal describes the source line at the function's entry point,
3711 which (by convention) is the prologue. The end of that "line",
3712 sal.end, is the end of the prologue.
3714 Note that, for functions whose source code is all on a single
3715 line, the line number information doesn't always end up this way.
3716 So we must verify that our purported end-of-prologue address is
3717 *within* the function, not at its start or end. */
3719 || sal.end <= func_addr
3720 || func_end <= sal.end)
3722 /* We don't have any good line number info, so use the minsym
3723 information, together with the architecture-specific prologue
3725 CORE_ADDR prologue_end = SKIP_PROLOGUE (func_addr);
3727 return func_addr <= pc && pc < prologue_end;
3730 /* We have line number info, and it looks good. */
3731 return func_addr <= pc && pc < sal.end;
3735 /* Begin overload resolution functions */
3738 remove_params (const char *demangled_name)
3744 if (demangled_name == NULL)
3747 /* First find the end of the arg list. */
3748 argp = strrchr (demangled_name, ')');
3752 /* Back up to the beginning. */
3755 while (argp-- > demangled_name)
3759 else if (*argp == '(')
3768 internal_error (__FILE__, __LINE__,
3769 "bad demangled name %s\n", demangled_name);
3770 while (argp[-1] == ' ' && argp > demangled_name)
3773 new_name = xmalloc (argp - demangled_name + 1);
3774 memcpy (new_name, demangled_name, argp - demangled_name);
3775 new_name[argp - demangled_name] = '\0';
3779 /* Helper routine for make_symbol_completion_list. */
3781 static int sym_return_val_size;
3782 static int sym_return_val_index;
3783 static struct symbol **sym_return_val;
3785 /* Test to see if the symbol specified by SYMNAME (which is already
3786 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3787 characters. If so, add it to the current completion list. */
3790 overload_list_add_symbol (struct symbol *sym, char *oload_name)
3796 /* If there is no type information, we can't do anything, so skip */
3797 if (SYMBOL_TYPE (sym) == NULL)
3800 /* skip any symbols that we've already considered. */
3801 for (i = 0; i < sym_return_val_index; ++i)
3802 if (!strcmp (SYMBOL_NAME (sym), SYMBOL_NAME (sym_return_val[i])))
3805 /* Get the demangled name without parameters */
3806 sym_name = remove_params (SYMBOL_DEMANGLED_NAME (sym));
3810 /* skip symbols that cannot match */
3811 if (strcmp (sym_name, oload_name) != 0)
3819 /* We have a match for an overload instance, so add SYM to the current list
3820 * of overload instances */
3821 if (sym_return_val_index + 3 > sym_return_val_size)
3823 newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *);
3824 sym_return_val = (struct symbol **) xrealloc ((char *) sym_return_val, newsize);
3826 sym_return_val[sym_return_val_index++] = sym;
3827 sym_return_val[sym_return_val_index] = NULL;
3830 /* Return a null-terminated list of pointers to function symbols that
3831 * match name of the supplied symbol FSYM.
3832 * This is used in finding all overloaded instances of a function name.
3833 * This has been modified from make_symbol_completion_list. */
3837 make_symbol_overload_list (struct symbol *fsym)
3839 register struct symbol *sym;
3840 register struct symtab *s;
3841 register struct partial_symtab *ps;
3842 register struct objfile *objfile;
3843 register struct block *b, *surrounding_static_block = 0;
3845 /* The name we are completing on. */
3846 char *oload_name = NULL;
3847 /* Length of name. */
3848 int oload_name_len = 0;
3850 /* Look for the symbol we are supposed to complete on. */
3852 oload_name = remove_params (SYMBOL_DEMANGLED_NAME (fsym));
3855 sym_return_val_size = 1;
3856 sym_return_val = (struct symbol **) xmalloc (2 * sizeof (struct symbol *));
3857 sym_return_val[0] = fsym;
3858 sym_return_val[1] = NULL;
3860 return sym_return_val;
3862 oload_name_len = strlen (oload_name);
3864 sym_return_val_size = 100;
3865 sym_return_val_index = 0;
3866 sym_return_val = (struct symbol **) xmalloc ((sym_return_val_size + 1) * sizeof (struct symbol *));
3867 sym_return_val[0] = NULL;
3869 /* Look through the partial symtabs for all symbols which begin
3870 by matching OLOAD_NAME. Make sure we read that symbol table in. */
3872 ALL_PSYMTABS (objfile, ps)
3874 struct partial_symbol **psym;
3876 /* If the psymtab's been read in we'll get it when we search
3877 through the blockvector. */
3881 for (psym = objfile->global_psymbols.list + ps->globals_offset;
3882 psym < (objfile->global_psymbols.list + ps->globals_offset
3883 + ps->n_global_syms);
3886 /* If interrupted, then quit. */
3888 /* This will cause the symbol table to be read if it has not yet been */
3889 s = PSYMTAB_TO_SYMTAB (ps);
3892 for (psym = objfile->static_psymbols.list + ps->statics_offset;
3893 psym < (objfile->static_psymbols.list + ps->statics_offset
3894 + ps->n_static_syms);
3898 /* This will cause the symbol table to be read if it has not yet been */
3899 s = PSYMTAB_TO_SYMTAB (ps);
3903 /* Search upwards from currently selected frame (so that we can
3904 complete on local vars. */
3906 for (b = get_selected_block (0); b != NULL; b = BLOCK_SUPERBLOCK (b))
3908 if (!BLOCK_SUPERBLOCK (b))
3910 surrounding_static_block = b; /* For elimination of dups */
3913 /* Also catch fields of types defined in this places which match our
3914 text string. Only complete on types visible from current context. */
3916 ALL_BLOCK_SYMBOLS (b, i, sym)
3918 overload_list_add_symbol (sym, oload_name);
3922 /* Go through the symtabs and check the externs and statics for
3923 symbols which match. */
3925 ALL_SYMTABS (objfile, s)
3928 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
3929 ALL_BLOCK_SYMBOLS (b, i, sym)
3931 overload_list_add_symbol (sym, oload_name);
3935 ALL_SYMTABS (objfile, s)
3938 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
3939 /* Don't do this block twice. */
3940 if (b == surrounding_static_block)
3942 ALL_BLOCK_SYMBOLS (b, i, sym)
3944 overload_list_add_symbol (sym, oload_name);
3950 return (sym_return_val);
3953 /* End of overload resolution functions */
3955 struct symtabs_and_lines
3956 decode_line_spec (char *string, int funfirstline)
3958 struct symtabs_and_lines sals;
3960 error ("Empty line specification.");
3961 sals = decode_line_1 (&string, funfirstline,
3962 current_source_symtab, current_source_line,
3965 error ("Junk at end of line specification: %s", string);
3970 static char *name_of_main;
3973 set_main_name (const char *name)
3975 if (name_of_main != NULL)
3977 xfree (name_of_main);
3978 name_of_main = NULL;
3982 name_of_main = xstrdup (name);
3989 if (name_of_main != NULL)
3990 return name_of_main;
3997 _initialize_symtab (void)
3999 add_info ("variables", variables_info,
4000 "All global and static variable names, or those matching REGEXP.");
4002 add_com ("whereis", class_info, variables_info,
4003 "All global and static variable names, or those matching REGEXP.");
4005 add_info ("functions", functions_info,
4006 "All function names, or those matching REGEXP.");
4009 /* FIXME: This command has at least the following problems:
4010 1. It prints builtin types (in a very strange and confusing fashion).
4011 2. It doesn't print right, e.g. with
4012 typedef struct foo *FOO
4013 type_print prints "FOO" when we want to make it (in this situation)
4014 print "struct foo *".
4015 I also think "ptype" or "whatis" is more likely to be useful (but if
4016 there is much disagreement "info types" can be fixed). */
4017 add_info ("types", types_info,
4018 "All type names, or those matching REGEXP.");
4021 add_info ("methods", methods_info,
4022 "All method names, or those matching REGEXP::REGEXP.\n\
4023 If the class qualifier is omitted, it is assumed to be the current scope.\n\
4024 If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
4027 add_info ("sources", sources_info,
4028 "Source files in the program.");
4030 add_com ("rbreak", class_breakpoint, rbreak_command,
4031 "Set a breakpoint for all functions matching REGEXP.");
4035 add_com ("lf", class_info, sources_info, "Source files in the program");
4036 add_com ("lg", class_info, variables_info,
4037 "All global and static variable names, or those matching REGEXP.");
4040 /* Initialize the one built-in type that isn't language dependent... */
4041 builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0,
4042 "<unknown type>", (struct objfile *) NULL);