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, 2003
5 Free Software Foundation, Inc.
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"
42 #include "filenames.h" /* for FILENAME_CMP */
46 #include "gdb_obstack.h"
48 #include <sys/types.h>
50 #include "gdb_string.h"
55 /* Prototypes for local functions */
57 static void completion_list_add_name (char *, char *, int, char *, char *);
59 static void rbreak_command (char *, int);
61 static void types_info (char *, int);
63 static void functions_info (char *, int);
65 static void variables_info (char *, int);
67 static void sources_info (char *, int);
69 static void output_source_filename (char *, int *);
71 static int find_line_common (struct linetable
*, int, int *);
73 /* This one is used by linespec.c */
75 char *operator_chars (char *p
, char **end
);
77 static struct partial_symbol
*lookup_partial_symbol (struct partial_symtab
*,
81 static struct symbol
*lookup_symbol_aux (const char *name
,
82 const char *mangled_name
,
83 const struct block
*block
,
84 const namespace_enum
namespace,
85 int *is_a_field_of_this
,
86 struct symtab
**symtab
);
89 struct symbol
*lookup_symbol_aux_local (const char *name
,
90 const char *mangled_name
,
91 const struct block
*block
,
92 const namespace_enum
namespace,
93 struct symtab
**symtab
,
94 const struct block
**static_block
);
97 struct symbol
*lookup_symbol_aux_block (const char *name
,
98 const char *mangled_name
,
99 const struct block
*block
,
100 const namespace_enum
namespace,
101 struct symtab
**symtab
);
104 struct symbol
*lookup_symbol_aux_symtabs (int block_index
,
106 const char *mangled_name
,
107 const namespace_enum
namespace,
108 struct symtab
**symtab
);
111 struct symbol
*lookup_symbol_aux_psymtabs (int block_index
,
113 const char *mangled_name
,
114 const namespace_enum
namespace,
115 struct symtab
**symtab
);
118 struct symbol
*lookup_symbol_aux_minsyms (const char *name
,
119 const char *mangled_name
,
120 const namespace_enum
namespace,
121 int *is_a_field_of_this
,
122 struct symtab
**symtab
);
124 static struct symbol
*find_active_alias (struct symbol
*sym
, CORE_ADDR addr
);
126 /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
127 /* Signals the presence of objects compiled by HP compilers */
128 int hp_som_som_object_present
= 0;
130 static void fixup_section (struct general_symbol_info
*, struct objfile
*);
132 static int file_matches (char *, char **, int);
134 static void print_symbol_info (namespace_enum
,
135 struct symtab
*, struct symbol
*, int, char *);
137 static void print_msymbol_info (struct minimal_symbol
*);
139 static void symtab_symbol_info (char *, namespace_enum
, int);
141 static void overload_list_add_symbol (struct symbol
*sym
, char *oload_name
);
143 void _initialize_symtab (void);
147 /* The single non-language-specific builtin type */
148 struct type
*builtin_type_error
;
150 /* Block in which the most recently searched-for symbol was found.
151 Might be better to make this a parameter to lookup_symbol and
154 const struct block
*block_found
;
156 /* Check for a symtab of a specific name; first in symtabs, then in
157 psymtabs. *If* there is no '/' in the name, a match after a '/'
158 in the symtab filename will also work. */
161 lookup_symtab (const char *name
)
163 register struct symtab
*s
;
164 register struct partial_symtab
*ps
;
165 register struct objfile
*objfile
;
166 char *real_path
= NULL
;
167 char *full_path
= NULL
;
169 /* Here we are interested in canonicalizing an absolute path, not
170 absolutizing a relative path. */
171 if (IS_ABSOLUTE_PATH (name
))
173 full_path
= xfullpath (name
);
174 make_cleanup (xfree
, full_path
);
175 real_path
= gdb_realpath (name
);
176 make_cleanup (xfree
, real_path
);
181 /* First, search for an exact match */
183 ALL_SYMTABS (objfile
, s
)
185 if (FILENAME_CMP (name
, s
->filename
) == 0)
190 /* If the user gave us an absolute path, try to find the file in
191 this symtab and use its absolute path. */
193 if (full_path
!= NULL
)
195 const char *fp
= symtab_to_filename (s
);
196 if (FILENAME_CMP (full_path
, fp
) == 0)
202 if (real_path
!= NULL
)
204 char *rp
= gdb_realpath (symtab_to_filename (s
));
205 make_cleanup (xfree
, rp
);
206 if (FILENAME_CMP (real_path
, rp
) == 0)
213 /* Now, search for a matching tail (only if name doesn't have any dirs) */
215 if (lbasename (name
) == name
)
216 ALL_SYMTABS (objfile
, s
)
218 if (FILENAME_CMP (lbasename (s
->filename
), name
) == 0)
222 /* Same search rules as above apply here, but now we look thru the
225 ps
= lookup_partial_symtab (name
);
230 error ("Internal: readin %s pst for `%s' found when no symtab found.",
233 s
= PSYMTAB_TO_SYMTAB (ps
);
238 /* At this point, we have located the psymtab for this file, but
239 the conversion to a symtab has failed. This usually happens
240 when we are looking up an include file. In this case,
241 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
242 been created. So, we need to run through the symtabs again in
243 order to find the file.
244 XXX - This is a crock, and should be fixed inside of the the
245 symbol parsing routines. */
249 /* Lookup the partial symbol table of a source file named NAME.
250 *If* there is no '/' in the name, a match after a '/'
251 in the psymtab filename will also work. */
253 struct partial_symtab
*
254 lookup_partial_symtab (const char *name
)
256 register struct partial_symtab
*pst
;
257 register struct objfile
*objfile
;
258 char *full_path
= NULL
;
259 char *real_path
= NULL
;
261 /* Here we are interested in canonicalizing an absolute path, not
262 absolutizing a relative path. */
263 if (IS_ABSOLUTE_PATH (name
))
265 full_path
= xfullpath (name
);
266 make_cleanup (xfree
, full_path
);
267 real_path
= gdb_realpath (name
);
268 make_cleanup (xfree
, real_path
);
271 ALL_PSYMTABS (objfile
, pst
)
273 if (FILENAME_CMP (name
, pst
->filename
) == 0)
278 /* If the user gave us an absolute path, try to find the file in
279 this symtab and use its absolute path. */
280 if (full_path
!= NULL
)
282 if (pst
->fullname
== NULL
)
283 source_full_path_of (pst
->filename
, &pst
->fullname
);
284 if (pst
->fullname
!= NULL
285 && FILENAME_CMP (full_path
, pst
->fullname
) == 0)
291 if (real_path
!= NULL
)
294 if (pst
->fullname
== NULL
)
295 source_full_path_of (pst
->filename
, &pst
->fullname
);
296 if (pst
->fullname
!= NULL
)
298 rp
= gdb_realpath (pst
->fullname
);
299 make_cleanup (xfree
, rp
);
301 if (rp
!= NULL
&& FILENAME_CMP (real_path
, rp
) == 0)
308 /* Now, search for a matching tail (only if name doesn't have any dirs) */
310 if (lbasename (name
) == name
)
311 ALL_PSYMTABS (objfile
, pst
)
313 if (FILENAME_CMP (lbasename (pst
->filename
), name
) == 0)
320 /* Mangle a GDB method stub type. This actually reassembles the pieces of the
321 full method name, which consist of the class name (from T), the unadorned
322 method name from METHOD_ID, and the signature for the specific overload,
323 specified by SIGNATURE_ID. Note that this function is g++ specific. */
326 gdb_mangle_name (struct type
*type
, int method_id
, int signature_id
)
328 int mangled_name_len
;
330 struct fn_field
*f
= TYPE_FN_FIELDLIST1 (type
, method_id
);
331 struct fn_field
*method
= &f
[signature_id
];
332 char *field_name
= TYPE_FN_FIELDLIST_NAME (type
, method_id
);
333 char *physname
= TYPE_FN_FIELD_PHYSNAME (f
, signature_id
);
334 char *newname
= type_name_no_tag (type
);
336 /* Does the form of physname indicate that it is the full mangled name
337 of a constructor (not just the args)? */
338 int is_full_physname_constructor
;
341 int is_destructor
= is_destructor_name (physname
);
342 /* Need a new type prefix. */
343 char *const_prefix
= method
->is_const
? "C" : "";
344 char *volatile_prefix
= method
->is_volatile
? "V" : "";
346 int len
= (newname
== NULL
? 0 : strlen (newname
));
348 /* Nothing to do if physname already contains a fully mangled v3 abi name
349 or an operator name. */
350 if ((physname
[0] == '_' && physname
[1] == 'Z')
351 || is_operator_name (field_name
))
352 return xstrdup (physname
);
354 is_full_physname_constructor
= is_constructor_name (physname
);
357 is_full_physname_constructor
|| (newname
&& STREQ (field_name
, newname
));
360 is_destructor
= (strncmp (physname
, "__dt", 4) == 0);
362 if (is_destructor
|| is_full_physname_constructor
)
364 mangled_name
= (char *) xmalloc (strlen (physname
) + 1);
365 strcpy (mangled_name
, physname
);
371 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
373 else if (physname
[0] == 't' || physname
[0] == 'Q')
375 /* The physname for template and qualified methods already includes
377 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
383 sprintf (buf
, "__%s%s%d", const_prefix
, volatile_prefix
, len
);
385 mangled_name_len
= ((is_constructor
? 0 : strlen (field_name
))
386 + strlen (buf
) + len
+ strlen (physname
) + 1);
389 mangled_name
= (char *) xmalloc (mangled_name_len
);
391 mangled_name
[0] = '\0';
393 strcpy (mangled_name
, field_name
);
395 strcat (mangled_name
, buf
);
396 /* If the class doesn't have a name, i.e. newname NULL, then we just
397 mangle it using 0 for the length of the class. Thus it gets mangled
398 as something starting with `::' rather than `classname::'. */
400 strcat (mangled_name
, newname
);
402 strcat (mangled_name
, physname
);
403 return (mangled_name
);
407 /* Initialize the language dependent portion of a symbol
408 depending upon the language for the symbol. */
410 symbol_init_language_specific (struct general_symbol_info
*gsymbol
,
411 enum language language
)
413 gsymbol
->language
= language
;
414 if (gsymbol
->language
== language_cplus
415 || gsymbol
->language
== language_java
)
417 gsymbol
->language_specific
.cplus_specific
.demangled_name
= NULL
;
419 else if (gsymbol
->language
== language_objc
)
421 gsymbol
->language_specific
.objc_specific
.demangled_name
= NULL
;
425 memset (&gsymbol
->language_specific
, 0,
426 sizeof (gsymbol
->language_specific
));
430 /* Functions to initialize a symbol's mangled name. */
432 /* Create the hash table used for demangled names. Each hash entry is
433 a pair of strings; one for the mangled name and one for the demangled
434 name. The entry is hashed via just the mangled name. */
437 create_demangled_names_hash (struct objfile
*objfile
)
439 /* Choose 256 as the starting size of the hash table, somewhat arbitrarily.
440 The hash table code will round this up to the next prime number.
441 Choosing a much larger table size wastes memory, and saves only about
442 1% in symbol reading. */
444 objfile
->demangled_names_hash
= htab_create_alloc_ex
445 (256, htab_hash_string
, (int (*) (const void *, const void *)) streq
,
446 NULL
, objfile
->md
, xmcalloc
, xmfree
);
449 /* Try to determine the demangled name for a symbol, based on the
450 language of that symbol. If the language is set to language_auto,
451 it will attempt to find any demangling algorithm that works and
452 then set the language appropriately. The returned name is allocated
453 by the demangler and should be xfree'd. */
456 symbol_find_demangled_name (struct general_symbol_info
*gsymbol
,
459 char *demangled
= NULL
;
461 if (gsymbol
->language
== language_unknown
)
462 gsymbol
->language
= language_auto
;
463 if (gsymbol
->language
== language_cplus
464 || gsymbol
->language
== language_auto
)
467 cplus_demangle (mangled
, DMGL_PARAMS
| DMGL_ANSI
);
468 if (demangled
!= NULL
)
470 gsymbol
->language
= language_cplus
;
474 if (gsymbol
->language
== language_java
)
477 cplus_demangle (mangled
,
478 DMGL_PARAMS
| DMGL_ANSI
| DMGL_JAVA
);
479 if (demangled
!= NULL
)
481 gsymbol
->language
= language_java
;
488 /* Set both the mangled and demangled (if any) names for GSYMBOL based on
489 NAME and LEN. The hash table corresponding to OBJFILE is used, and the
490 memory comes from that objfile's symbol_obstack. NAME is copied, so the
491 pointer can be discarded after calling this function. */
494 symbol_set_names (struct general_symbol_info
*gsymbol
,
495 const char *name
, int len
, struct objfile
*objfile
)
500 if (objfile
->demangled_names_hash
== NULL
)
501 create_demangled_names_hash (objfile
);
503 /* The stabs reader generally provides names that are not NULL-terminated;
504 most of the other readers don't do this, so we can just use the given
508 char *alloc_name
= alloca (len
+ 1);
509 memcpy (alloc_name
, name
, len
);
511 tmpname
= alloc_name
;
516 slot
= (char **) htab_find_slot (objfile
->demangled_names_hash
, tmpname
, INSERT
);
518 /* If this name is not in the hash table, add it. */
521 char *demangled_name
= symbol_find_demangled_name (gsymbol
, tmpname
);
522 int demangled_len
= demangled_name
? strlen (demangled_name
) : 0;
524 /* If there is a demangled name, place it right after the mangled name.
525 Otherwise, just place a second zero byte after the end of the mangled
527 *slot
= obstack_alloc (&objfile
->symbol_obstack
,
528 len
+ demangled_len
+ 2);
529 memcpy (*slot
, tmpname
, len
+ 1);
532 memcpy (*slot
+ len
+ 1, demangled_name
, demangled_len
+ 1);
533 xfree (demangled_name
);
536 (*slot
)[len
+ 1] = 0;
539 gsymbol
->name
= *slot
;
540 if ((*slot
)[len
+ 1])
541 gsymbol
->language_specific
.cplus_specific
.demangled_name
544 gsymbol
->language_specific
.cplus_specific
.demangled_name
= NULL
;
547 /* Initialize the demangled name of GSYMBOL if possible. Any required space
548 to store the name is obtained from the specified obstack. The function
549 symbol_set_names, above, should be used instead where possible for more
550 efficient memory usage. */
553 symbol_init_demangled_name (struct general_symbol_info
*gsymbol
,
554 struct obstack
*obstack
)
556 char *mangled
= gsymbol
->name
;
557 char *demangled
= NULL
;
559 demangled
= symbol_find_demangled_name (gsymbol
, mangled
);
560 if (gsymbol
->language
== language_cplus
561 || gsymbol
->language
== language_java
)
565 gsymbol
->language_specific
.cplus_specific
.demangled_name
566 = obsavestring (demangled
, strlen (demangled
), obstack
);
570 gsymbol
->language_specific
.cplus_specific
.demangled_name
= NULL
;
574 /* Unknown language; just clean up quietly. */
580 /* Return the demangled name for a symbol based on the language for
581 that symbol. If no demangled name exists, return NULL. */
583 symbol_demangled_name (struct general_symbol_info
*gsymbol
)
585 if (gsymbol
->language
== language_cplus
586 || gsymbol
->language
== language_java
)
587 return gsymbol
->language_specific
.cplus_specific
.demangled_name
;
589 else if (gsymbol
->language
== language_objc
)
590 return gsymbol
->language_specific
.objc_specific
.demangled_name
;
596 /* Initialize the structure fields to zero values. */
598 init_sal (struct symtab_and_line
*sal
)
609 /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
611 struct partial_symtab
*
612 find_pc_sect_psymtab (CORE_ADDR pc
, asection
*section
)
614 register struct partial_symtab
*pst
;
615 register struct objfile
*objfile
;
616 struct minimal_symbol
*msymbol
;
618 /* If we know that this is not a text address, return failure. This is
619 necessary because we loop based on texthigh and textlow, which do
620 not include the data ranges. */
621 msymbol
= lookup_minimal_symbol_by_pc_section (pc
, section
);
623 && (msymbol
->type
== mst_data
624 || msymbol
->type
== mst_bss
625 || msymbol
->type
== mst_abs
626 || msymbol
->type
== mst_file_data
627 || msymbol
->type
== mst_file_bss
))
630 ALL_PSYMTABS (objfile
, pst
)
632 if (pc
>= pst
->textlow
&& pc
< pst
->texthigh
)
634 struct partial_symtab
*tpst
;
636 /* An objfile that has its functions reordered might have
637 many partial symbol tables containing the PC, but
638 we want the partial symbol table that contains the
639 function containing the PC. */
640 if (!(objfile
->flags
& OBJF_REORDERED
) &&
641 section
== 0) /* can't validate section this way */
647 for (tpst
= pst
; tpst
!= NULL
; tpst
= tpst
->next
)
649 if (pc
>= tpst
->textlow
&& pc
< tpst
->texthigh
)
651 struct partial_symbol
*p
;
653 p
= find_pc_sect_psymbol (tpst
, pc
, section
);
655 && SYMBOL_VALUE_ADDRESS (p
)
656 == SYMBOL_VALUE_ADDRESS (msymbol
))
666 /* Find which partial symtab contains PC. Return 0 if none.
667 Backward compatibility, no section */
669 struct partial_symtab
*
670 find_pc_psymtab (CORE_ADDR pc
)
672 return find_pc_sect_psymtab (pc
, find_pc_mapped_section (pc
));
675 /* Find which partial symbol within a psymtab matches PC and SECTION.
676 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
678 struct partial_symbol
*
679 find_pc_sect_psymbol (struct partial_symtab
*psymtab
, CORE_ADDR pc
,
682 struct partial_symbol
*best
= NULL
, *p
, **pp
;
686 psymtab
= find_pc_sect_psymtab (pc
, section
);
690 /* Cope with programs that start at address 0 */
691 best_pc
= (psymtab
->textlow
!= 0) ? psymtab
->textlow
- 1 : 0;
693 /* Search the global symbols as well as the static symbols, so that
694 find_pc_partial_function doesn't use a minimal symbol and thus
695 cache a bad endaddr. */
696 for (pp
= psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
;
697 (pp
- (psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
)
698 < psymtab
->n_global_syms
);
702 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
703 && SYMBOL_CLASS (p
) == LOC_BLOCK
704 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
705 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
706 || (psymtab
->textlow
== 0
707 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
709 if (section
) /* match on a specific section */
711 fixup_psymbol_section (p
, psymtab
->objfile
);
712 if (SYMBOL_BFD_SECTION (p
) != section
)
715 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
720 for (pp
= psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
;
721 (pp
- (psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
)
722 < psymtab
->n_static_syms
);
726 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
727 && SYMBOL_CLASS (p
) == LOC_BLOCK
728 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
729 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
730 || (psymtab
->textlow
== 0
731 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
733 if (section
) /* match on a specific section */
735 fixup_psymbol_section (p
, psymtab
->objfile
);
736 if (SYMBOL_BFD_SECTION (p
) != section
)
739 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
747 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
748 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
750 struct partial_symbol
*
751 find_pc_psymbol (struct partial_symtab
*psymtab
, CORE_ADDR pc
)
753 return find_pc_sect_psymbol (psymtab
, pc
, find_pc_mapped_section (pc
));
756 /* Debug symbols usually don't have section information. We need to dig that
757 out of the minimal symbols and stash that in the debug symbol. */
760 fixup_section (struct general_symbol_info
*ginfo
, struct objfile
*objfile
)
762 struct minimal_symbol
*msym
;
763 msym
= lookup_minimal_symbol (ginfo
->name
, NULL
, objfile
);
767 ginfo
->bfd_section
= SYMBOL_BFD_SECTION (msym
);
768 ginfo
->section
= SYMBOL_SECTION (msym
);
773 fixup_symbol_section (struct symbol
*sym
, struct objfile
*objfile
)
778 if (SYMBOL_BFD_SECTION (sym
))
781 fixup_section (&sym
->ginfo
, objfile
);
786 struct partial_symbol
*
787 fixup_psymbol_section (struct partial_symbol
*psym
, struct objfile
*objfile
)
792 if (SYMBOL_BFD_SECTION (psym
))
795 fixup_section (&psym
->ginfo
, objfile
);
800 /* Find the definition for a specified symbol name NAME
801 in namespace NAMESPACE, visible from lexical block BLOCK.
802 Returns the struct symbol pointer, or zero if no symbol is found.
803 If SYMTAB is non-NULL, store the symbol table in which the
804 symbol was found there, or NULL if not found.
805 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
806 NAME is a field of the current implied argument `this'. If so set
807 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
808 BLOCK_FOUND is set to the block in which NAME is found (in the case of
809 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
811 /* This function has a bunch of loops in it and it would seem to be
812 attractive to put in some QUIT's (though I'm not really sure
813 whether it can run long enough to be really important). But there
814 are a few calls for which it would appear to be bad news to quit
815 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c. (Note
816 that there is C++ code below which can error(), but that probably
817 doesn't affect these calls since they are looking for a known
818 variable and thus can probably assume it will never hit the C++
822 lookup_symbol (const char *name
, const struct block
*block
,
823 const namespace_enum
namespace, int *is_a_field_of_this
,
824 struct symtab
**symtab
)
826 char *demangled_name
= NULL
;
827 const char *modified_name
= NULL
;
828 const char *mangled_name
= NULL
;
829 int needtofreename
= 0;
830 struct symbol
*returnval
;
832 modified_name
= name
;
834 /* If we are using C++ language, demangle the name before doing a lookup, so
835 we can always binary search. */
836 if (current_language
->la_language
== language_cplus
)
838 demangled_name
= cplus_demangle (name
, DMGL_ANSI
| DMGL_PARAMS
);
842 modified_name
= demangled_name
;
847 if (case_sensitivity
== case_sensitive_off
)
853 copy
= (char *) alloca (len
+ 1);
854 for (i
= 0; i
< len
; i
++)
855 copy
[i
] = tolower (name
[i
]);
857 modified_name
= copy
;
860 returnval
= lookup_symbol_aux (modified_name
, mangled_name
, block
,
861 namespace, is_a_field_of_this
, symtab
);
863 xfree (demangled_name
);
868 static struct symbol
*
869 lookup_symbol_aux (const char *name
, const char *mangled_name
,
870 const struct block
*block
, const namespace_enum
namespace,
871 int *is_a_field_of_this
, struct symtab
**symtab
)
874 const struct block
*static_block
;
876 /* Search specified block and its superiors. Don't search
877 STATIC_BLOCK or GLOBAL_BLOCK. */
879 sym
= lookup_symbol_aux_local (name
, mangled_name
, block
, namespace,
880 symtab
, &static_block
);
885 /* NOTE: carlton/2002-11-05: At the time that this code was
886 #ifdeffed out, the value of 'block' was always NULL at this
887 point, hence the bemused comments below. */
889 /* FIXME: this code is never executed--block is always NULL at this
890 point. What is it trying to do, anyway? We already should have
891 checked the STATIC_BLOCK above (it is the superblock of top-level
892 blocks). Why is VAR_NAMESPACE special-cased? */
893 /* Don't need to mess with the psymtabs; if we have a block,
894 that file is read in. If we don't, then we deal later with
895 all the psymtab stuff that needs checking. */
896 /* Note (RT): The following never-executed code looks unnecessary to me also.
897 * If we change the code to use the original (passed-in)
898 * value of 'block', we could cause it to execute, but then what
899 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
900 * 'block' was already searched by the above code. And the STATIC_BLOCK's
901 * of *other* symtabs (those files not containing 'block' lexically)
902 * should not contain 'block' address-wise. So we wouldn't expect this
903 * code to find any 'sym''s that were not found above. I vote for
904 * deleting the following paragraph of code.
906 if (namespace == VAR_NAMESPACE
&& block
!= NULL
)
909 /* Find the right symtab. */
910 ALL_SYMTABS (objfile
, s
)
912 bv
= BLOCKVECTOR (s
);
913 b
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
914 if (BLOCK_START (b
) <= BLOCK_START (block
)
915 && BLOCK_END (b
) > BLOCK_START (block
))
917 sym
= lookup_block_symbol (b
, name
, mangled_name
, VAR_NAMESPACE
);
923 return fixup_symbol_section (sym
, objfile
);
930 /* C++: If requested to do so by the caller,
931 check to see if NAME is a field of `this'. */
932 if (is_a_field_of_this
)
934 struct value
*v
= value_of_this (0);
936 *is_a_field_of_this
= 0;
937 if (v
&& check_field (v
, name
))
939 *is_a_field_of_this
= 1;
946 /* If there's a static block to search, search it next. */
948 /* NOTE: carlton/2002-12-05: There is a question as to whether or
949 not it would be appropriate to search the current global block
950 here as well. (That's what this code used to do before the
951 is_a_field_of_this check was moved up.) On the one hand, it's
952 redundant with the lookup_symbol_aux_symtabs search that happens
953 next. On the other hand, if decode_line_1 is passed an argument
954 like filename:var, then the user presumably wants 'var' to be
955 searched for in filename. On the third hand, there shouldn't be
956 multiple global variables all of which are named 'var', and it's
957 not like decode_line_1 has ever restricted its search to only
958 global variables in a single filename. All in all, only
959 searching the static block here seems best: it's correct and it's
962 /* NOTE: carlton/2002-12-05: There's also a possible performance
963 issue here: if you usually search for global symbols in the
964 current file, then it would be slightly better to search the
965 current global block before searching all the symtabs. But there
966 are other factors that have a much greater effect on performance
967 than that one, so I don't think we should worry about that for
970 if (static_block
!= NULL
)
972 sym
= lookup_symbol_aux_block (name
, mangled_name
, static_block
,
978 /* Now search all global blocks. Do the symtab's first, then
979 check the psymtab's. If a psymtab indicates the existence
980 of the desired name as a global, then do psymtab-to-symtab
981 conversion on the fly and return the found symbol. */
983 sym
= lookup_symbol_aux_symtabs (GLOBAL_BLOCK
, name
, mangled_name
,
990 /* Check for the possibility of the symbol being a function or
991 a mangled variable that is stored in one of the minimal symbol tables.
992 Eventually, all global symbols might be resolved in this way. */
994 sym
= lookup_symbol_aux_minsyms (name
, mangled_name
,
995 namespace, is_a_field_of_this
,
1003 sym
= lookup_symbol_aux_psymtabs (GLOBAL_BLOCK
, name
, mangled_name
,
1008 /* Now search all static file-level symbols. Not strictly correct,
1009 but more useful than an error. Do the symtabs first, then check
1010 the psymtabs. If a psymtab indicates the existence of the
1011 desired name as a file-level static, then do psymtab-to-symtab
1012 conversion on the fly and return the found symbol. */
1014 sym
= lookup_symbol_aux_symtabs (STATIC_BLOCK
, name
, mangled_name
,
1019 sym
= lookup_symbol_aux_psymtabs (STATIC_BLOCK
, name
, mangled_name
,
1026 /* Check for the possibility of the symbol being a function or
1027 a global variable that is stored in one of the minimal symbol tables.
1028 The "minimal symbol table" is built from linker-supplied info.
1030 RT: I moved this check to last, after the complete search of
1031 the global (p)symtab's and static (p)symtab's. For HP-generated
1032 symbol tables, this check was causing a premature exit from
1033 lookup_symbol with NULL return, and thus messing up symbol lookups
1034 of things like "c::f". It seems to me a check of the minimal
1035 symbol table ought to be a last resort in any case. I'm vaguely
1036 worried about the comment below which talks about FORTRAN routines "foo_"
1037 though... is it saying we need to do the "minsym" check before
1038 the static check in this case?
1042 sym
= lookup_symbol_aux_minsyms (name
, mangled_name
,
1043 namespace, is_a_field_of_this
,
1056 /* Check to see if the symbol is defined in BLOCK or its superiors.
1057 Don't search STATIC_BLOCK or GLOBAL_BLOCK. If we don't find a
1058 match, store the address of STATIC_BLOCK in static_block. */
1060 static struct symbol
*
1061 lookup_symbol_aux_local (const char *name
, const char *mangled_name
,
1062 const struct block
*block
,
1063 const namespace_enum
namespace,
1064 struct symtab
**symtab
,
1065 const struct block
**static_block
)
1069 /* Check if either no block is specified or it's a global block. */
1071 if (block
== NULL
|| BLOCK_SUPERBLOCK (block
) == NULL
)
1073 *static_block
= NULL
;
1077 while (BLOCK_SUPERBLOCK (BLOCK_SUPERBLOCK (block
)) != NULL
)
1079 sym
= lookup_symbol_aux_block (name
, mangled_name
, block
, namespace,
1083 block
= BLOCK_SUPERBLOCK (block
);
1086 /* We've reached the static block. */
1088 *static_block
= block
;
1092 /* Look up a symbol in a block; if found, locate its symtab, fixup the
1093 symbol, and set block_found appropriately. */
1095 static struct symbol
*
1096 lookup_symbol_aux_block (const char *name
, const char *mangled_name
,
1097 const struct block
*block
,
1098 const namespace_enum
namespace,
1099 struct symtab
**symtab
)
1102 struct objfile
*objfile
= NULL
;
1103 struct blockvector
*bv
;
1105 struct symtab
*s
= NULL
;
1107 sym
= lookup_block_symbol (block
, name
, mangled_name
, namespace);
1110 block_found
= block
;
1113 /* Search the list of symtabs for one which contains the
1114 address of the start of this block. */
1115 ALL_SYMTABS (objfile
, s
)
1117 bv
= BLOCKVECTOR (s
);
1118 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1119 if (BLOCK_START (b
) <= BLOCK_START (block
)
1120 && BLOCK_END (b
) > BLOCK_START (block
))
1127 return fixup_symbol_section (sym
, objfile
);
1133 /* Check to see if the symbol is defined in one of the symtabs.
1134 BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK,
1135 depending on whether or not we want to search global symbols or
1138 static struct symbol
*
1139 lookup_symbol_aux_symtabs (int block_index
,
1140 const char *name
, const char *mangled_name
,
1141 const namespace_enum
namespace,
1142 struct symtab
**symtab
)
1145 struct objfile
*objfile
;
1146 struct blockvector
*bv
;
1147 const struct block
*block
;
1150 ALL_SYMTABS (objfile
, s
)
1152 bv
= BLOCKVECTOR (s
);
1153 block
= BLOCKVECTOR_BLOCK (bv
, block_index
);
1154 sym
= lookup_block_symbol (block
, name
, mangled_name
, namespace);
1157 block_found
= block
;
1160 return fixup_symbol_section (sym
, objfile
);
1167 /* Check to see if the symbol is defined in one of the partial
1168 symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or
1169 STATIC_BLOCK, depending on whether or not we want to search global
1170 symbols or static symbols. */
1172 static struct symbol
*
1173 lookup_symbol_aux_psymtabs (int block_index
, const char *name
,
1174 const char *mangled_name
,
1175 const namespace_enum
namespace,
1176 struct symtab
**symtab
)
1179 struct objfile
*objfile
;
1180 struct blockvector
*bv
;
1181 const struct block
*block
;
1182 struct partial_symtab
*ps
;
1184 const int psymtab_index
= (block_index
== GLOBAL_BLOCK
? 1 : 0);
1186 ALL_PSYMTABS (objfile
, ps
)
1189 && lookup_partial_symbol (ps
, name
, psymtab_index
, namespace))
1191 s
= PSYMTAB_TO_SYMTAB (ps
);
1192 bv
= BLOCKVECTOR (s
);
1193 block
= BLOCKVECTOR_BLOCK (bv
, block_index
);
1194 sym
= lookup_block_symbol (block
, name
, mangled_name
, namespace);
1197 /* This shouldn't be necessary, but as a last resort try
1198 looking in the statics even though the psymtab claimed
1199 the symbol was global, or vice-versa. It's possible
1200 that the psymtab gets it wrong in some cases. */
1202 /* FIXME: carlton/2002-09-30: Should we really do that?
1203 If that happens, isn't it likely to be a GDB error, in
1204 which case we should fix the GDB error rather than
1205 silently dealing with it here? So I'd vote for
1206 removing the check for the symbol in the other
1208 block
= BLOCKVECTOR_BLOCK (bv
,
1209 block_index
== GLOBAL_BLOCK
?
1210 STATIC_BLOCK
: GLOBAL_BLOCK
);
1211 sym
= lookup_block_symbol (block
, name
, mangled_name
, namespace);
1213 error ("Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n%s may be an inlined function, or may be a template function\n(if a template, try specifying an instantiation: %s<type>).",
1214 block_index
== GLOBAL_BLOCK
? "global" : "static",
1215 name
, ps
->filename
, name
, name
);
1219 return fixup_symbol_section (sym
, objfile
);
1226 /* Check for the possibility of the symbol being a function or a
1227 mangled variable that is stored in one of the minimal symbol
1228 tables. Eventually, all global symbols might be resolved in this
1231 /* NOTE: carlton/2002-12-05: At one point, this function was part of
1232 lookup_symbol_aux, and what are now 'return' statements within
1233 lookup_symbol_aux_minsyms returned from lookup_symbol_aux, even if
1234 sym was NULL. As far as I can tell, this was basically accidental;
1235 it didn't happen every time that msymbol was non-NULL, but only if
1236 some additional conditions held as well, and it caused problems
1237 with HP-generated symbol tables. */
1239 static struct symbol
*
1240 lookup_symbol_aux_minsyms (const char *name
,
1241 const char *mangled_name
,
1242 const namespace_enum
namespace,
1243 int *is_a_field_of_this
,
1244 struct symtab
**symtab
)
1247 struct blockvector
*bv
;
1248 const struct block
*block
;
1249 struct minimal_symbol
*msymbol
;
1252 if (namespace == VAR_NAMESPACE
)
1254 msymbol
= lookup_minimal_symbol (name
, NULL
, NULL
);
1256 if (msymbol
!= NULL
)
1258 /* OK, we found a minimal symbol in spite of not finding any
1259 symbol. There are various possible explanations for
1260 this. One possibility is the symbol exists in code not
1261 compiled -g. Another possibility is that the 'psymtab'
1262 isn't doing its job. A third possibility, related to #2,
1263 is that we were confused by name-mangling. For instance,
1264 maybe the psymtab isn't doing its job because it only
1265 know about demangled names, but we were given a mangled
1268 /* We first use the address in the msymbol to try to locate
1269 the appropriate symtab. Note that find_pc_sect_symtab()
1270 has a side-effect of doing psymtab-to-symtab expansion,
1271 for the found symtab. */
1272 s
= find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol
),
1273 SYMBOL_BFD_SECTION (msymbol
));
1276 /* This is a function which has a symtab for its address. */
1277 bv
= BLOCKVECTOR (s
);
1278 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1280 /* This call used to pass `SYMBOL_NAME (msymbol)' as the
1281 `name' argument to lookup_block_symbol. But the name
1282 of a minimal symbol is always mangled, so that seems
1283 to be clearly the wrong thing to pass as the
1286 lookup_block_symbol (block
, name
, mangled_name
, namespace);
1287 /* We kept static functions in minimal symbol table as well as
1288 in static scope. We want to find them in the symbol table. */
1291 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1292 sym
= lookup_block_symbol (block
, name
,
1293 mangled_name
, namespace);
1296 /* NOTE: carlton/2002-12-04: The following comment was
1297 taken from a time when two versions of this function
1298 were part of the body of lookup_symbol_aux: this
1299 comment was taken from the version of the function
1300 that was #ifdef HPUXHPPA, and the comment was right
1301 before the 'return NULL' part of lookup_symbol_aux.
1302 (Hence the "Fall through and return 0" comment.)
1303 Elena did some digging into the situation for
1304 Fortran, and she reports:
1306 "I asked around (thanks to Jeff Knaggs), and I think
1307 the story for Fortran goes like this:
1309 "Apparently, in older Fortrans, '_' was not part of
1310 the user namespace. g77 attached a final '_' to
1311 procedure names as the exported symbols for linkage
1312 (foo_) , but the symbols went in the debug info just
1313 like 'foo'. The rationale behind this is not
1314 completely clear, and maybe it was done to other
1315 symbols as well, not just procedures." */
1317 /* If we get here with sym == 0, the symbol was
1318 found in the minimal symbol table
1319 but not in the symtab.
1320 Fall through and return 0 to use the msymbol
1321 definition of "foo_".
1322 (Note that outer code generally follows up a call
1323 to this routine with a call to lookup_minimal_symbol(),
1324 so a 0 return means we'll just flow into that other routine).
1326 This happens for Fortran "foo_" symbols,
1327 which are "foo" in the symtab.
1329 This can also happen if "asm" is used to make a
1330 regular symbol but not a debugging symbol, e.g.
1331 asm(".globl _main");
1335 if (symtab
!= NULL
&& sym
!= NULL
)
1337 return fixup_symbol_section (sym
, s
->objfile
);
1339 else if (MSYMBOL_TYPE (msymbol
) != mst_text
1340 && MSYMBOL_TYPE (msymbol
) != mst_file_text
1341 && !STREQ (name
, SYMBOL_NAME (msymbol
)))
1343 /* This is a mangled variable, look it up by its
1345 return lookup_symbol_aux (SYMBOL_NAME (msymbol
), mangled_name
,
1346 NULL
, namespace, is_a_field_of_this
,
1355 /* Look, in partial_symtab PST, for symbol NAME. Check the global
1356 symbols if GLOBAL, the static symbols if not */
1358 static struct partial_symbol
*
1359 lookup_partial_symbol (struct partial_symtab
*pst
, const char *name
, int global
,
1360 namespace_enum
namespace)
1362 struct partial_symbol
*temp
;
1363 struct partial_symbol
**start
, **psym
;
1364 struct partial_symbol
**top
, **real_top
, **bottom
, **center
;
1365 int length
= (global
? pst
->n_global_syms
: pst
->n_static_syms
);
1366 int do_linear_search
= 1;
1373 pst
->objfile
->global_psymbols
.list
+ pst
->globals_offset
:
1374 pst
->objfile
->static_psymbols
.list
+ pst
->statics_offset
);
1376 if (global
) /* This means we can use a binary search. */
1378 do_linear_search
= 0;
1380 /* Binary search. This search is guaranteed to end with center
1381 pointing at the earliest partial symbol with the correct
1382 name. At that point *all* partial symbols with that name
1383 will be checked against the correct namespace. */
1386 top
= start
+ length
- 1;
1388 while (top
> bottom
)
1390 center
= bottom
+ (top
- bottom
) / 2;
1391 if (!(center
< top
))
1392 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1393 if (!do_linear_search
1394 && (SYMBOL_LANGUAGE (*center
) == language_java
))
1396 do_linear_search
= 1;
1398 if (strcmp (SYMBOL_SOURCE_NAME (*center
), name
) >= 0)
1404 bottom
= center
+ 1;
1407 if (!(top
== bottom
))
1408 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1410 /* djb - 2000-06-03 - Use SYMBOL_MATCHES_NAME, not a strcmp, so
1411 we don't have to force a linear search on C++. Probably holds true
1412 for JAVA as well, no way to check.*/
1413 while (top
<= real_top
&& SYMBOL_MATCHES_NAME (*top
,name
))
1415 if (SYMBOL_NAMESPACE (*top
) == namespace)
1423 /* Can't use a binary search or else we found during the binary search that
1424 we should also do a linear search. */
1426 if (do_linear_search
)
1428 for (psym
= start
; psym
< start
+ length
; psym
++)
1430 if (namespace == SYMBOL_NAMESPACE (*psym
))
1432 if (SYMBOL_MATCHES_NAME (*psym
, name
))
1443 /* Look up a type named NAME in the struct_namespace. The type returned
1444 must not be opaque -- i.e., must have at least one field defined
1446 This code was modelled on lookup_symbol -- the parts not relevant to looking
1447 up types were just left out. In particular it's assumed here that types
1448 are available in struct_namespace and only at file-static or global blocks. */
1452 lookup_transparent_type (const char *name
)
1454 register struct symbol
*sym
;
1455 register struct symtab
*s
= NULL
;
1456 register struct partial_symtab
*ps
;
1457 struct blockvector
*bv
;
1458 register struct objfile
*objfile
;
1459 register struct block
*block
;
1461 /* Now search all the global symbols. Do the symtab's first, then
1462 check the psymtab's. If a psymtab indicates the existence
1463 of the desired name as a global, then do psymtab-to-symtab
1464 conversion on the fly and return the found symbol. */
1466 ALL_SYMTABS (objfile
, s
)
1468 bv
= BLOCKVECTOR (s
);
1469 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1470 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1471 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1473 return SYMBOL_TYPE (sym
);
1477 ALL_PSYMTABS (objfile
, ps
)
1479 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 1, STRUCT_NAMESPACE
))
1481 s
= PSYMTAB_TO_SYMTAB (ps
);
1482 bv
= BLOCKVECTOR (s
);
1483 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1484 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1487 /* This shouldn't be necessary, but as a last resort
1488 * try looking in the statics even though the psymtab
1489 * claimed the symbol was global. It's possible that
1490 * the psymtab gets it wrong in some cases.
1492 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1493 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1495 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
1496 %s may be an inlined function, or may be a template function\n\
1497 (if a template, try specifying an instantiation: %s<type>).",
1498 name
, ps
->filename
, name
, name
);
1500 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1501 return SYMBOL_TYPE (sym
);
1505 /* Now search the static file-level symbols.
1506 Not strictly correct, but more useful than an error.
1507 Do the symtab's first, then
1508 check the psymtab's. If a psymtab indicates the existence
1509 of the desired name as a file-level static, then do psymtab-to-symtab
1510 conversion on the fly and return the found symbol.
1513 ALL_SYMTABS (objfile
, s
)
1515 bv
= BLOCKVECTOR (s
);
1516 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1517 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1518 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1520 return SYMBOL_TYPE (sym
);
1524 ALL_PSYMTABS (objfile
, ps
)
1526 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 0, STRUCT_NAMESPACE
))
1528 s
= PSYMTAB_TO_SYMTAB (ps
);
1529 bv
= BLOCKVECTOR (s
);
1530 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1531 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1534 /* This shouldn't be necessary, but as a last resort
1535 * try looking in the globals even though the psymtab
1536 * claimed the symbol was static. It's possible that
1537 * the psymtab gets it wrong in some cases.
1539 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1540 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1542 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
1543 %s may be an inlined function, or may be a template function\n\
1544 (if a template, try specifying an instantiation: %s<type>).",
1545 name
, ps
->filename
, name
, name
);
1547 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1548 return SYMBOL_TYPE (sym
);
1551 return (struct type
*) 0;
1555 /* Find the psymtab containing main(). */
1556 /* FIXME: What about languages without main() or specially linked
1557 executables that have no main() ? */
1559 struct partial_symtab
*
1560 find_main_psymtab (void)
1562 register struct partial_symtab
*pst
;
1563 register struct objfile
*objfile
;
1565 ALL_PSYMTABS (objfile
, pst
)
1567 if (lookup_partial_symbol (pst
, main_name (), 1, VAR_NAMESPACE
))
1575 /* Search BLOCK for symbol NAME in NAMESPACE.
1577 Note that if NAME is the demangled form of a C++ symbol, we will fail
1578 to find a match during the binary search of the non-encoded names, but
1579 for now we don't worry about the slight inefficiency of looking for
1580 a match we'll never find, since it will go pretty quick. Once the
1581 binary search terminates, we drop through and do a straight linear
1582 search on the symbols. Each symbol which is marked as being a C++
1583 symbol (language_cplus set) has both the encoded and non-encoded names
1586 If MANGLED_NAME is non-NULL, verify that any symbol we find has this
1587 particular mangled name.
1591 lookup_block_symbol (register const struct block
*block
, const char *name
,
1592 const char *mangled_name
,
1593 const namespace_enum
namespace)
1595 register int bot
, top
, inc
;
1596 register struct symbol
*sym
;
1597 register struct symbol
*sym_found
= NULL
;
1598 register int do_linear_search
= 1;
1600 if (BLOCK_HASHTABLE (block
))
1602 unsigned int hash_index
;
1603 hash_index
= msymbol_hash_iw (name
);
1604 hash_index
= hash_index
% BLOCK_BUCKETS (block
);
1605 for (sym
= BLOCK_BUCKET (block
, hash_index
); sym
; sym
= sym
->hash_next
)
1607 if (SYMBOL_NAMESPACE (sym
) == namespace
1609 ? strcmp (SYMBOL_NAME (sym
), mangled_name
) == 0
1610 : SYMBOL_MATCHES_NAME (sym
, name
)))
1616 /* If the blocks's symbols were sorted, start with a binary search. */
1618 if (BLOCK_SHOULD_SORT (block
))
1620 /* Reset the linear search flag so if the binary search fails, we
1621 won't do the linear search once unless we find some reason to
1624 do_linear_search
= 0;
1625 top
= BLOCK_NSYMS (block
);
1628 /* Advance BOT to not far before the first symbol whose name is NAME. */
1632 inc
= (top
- bot
+ 1);
1633 /* No need to keep binary searching for the last few bits worth. */
1638 inc
= (inc
>> 1) + bot
;
1639 sym
= BLOCK_SYM (block
, inc
);
1640 if (!do_linear_search
&& (SYMBOL_LANGUAGE (sym
) == language_java
))
1642 do_linear_search
= 1;
1644 if (SYMBOL_SOURCE_NAME (sym
)[0] < name
[0])
1648 else if (SYMBOL_SOURCE_NAME (sym
)[0] > name
[0])
1652 else if (strcmp (SYMBOL_SOURCE_NAME (sym
), name
) < 0)
1662 /* Now scan forward until we run out of symbols, find one whose
1663 name is greater than NAME, or find one we want. If there is
1664 more than one symbol with the right name and namespace, we
1665 return the first one; I believe it is now impossible for us
1666 to encounter two symbols with the same name and namespace
1667 here, because blocks containing argument symbols are no
1668 longer sorted. The exception is for C++, where multiple functions
1669 (cloned constructors / destructors, in particular) can have
1670 the same demangled name. So if we have a particular
1671 mangled name to match, try to do so. */
1673 top
= BLOCK_NSYMS (block
);
1676 sym
= BLOCK_SYM (block
, bot
);
1677 if (SYMBOL_NAMESPACE (sym
) == namespace
1679 ? strcmp (SYMBOL_NAME (sym
), mangled_name
) == 0
1680 : SYMBOL_MATCHES_NAME (sym
, name
)))
1684 if (SYMBOL_SOURCE_NAME (sym
)[0] > name
[0])
1692 /* Here if block isn't sorted, or we fail to find a match during the
1693 binary search above. If during the binary search above, we find a
1694 symbol which is a Java symbol, then we have re-enabled the linear
1695 search flag which was reset when starting the binary search.
1697 This loop is equivalent to the loop above, but hacked greatly for speed.
1699 Note that parameter symbols do not always show up last in the
1700 list; this loop makes sure to take anything else other than
1701 parameter symbols first; it only uses parameter symbols as a
1702 last resort. Note that this only takes up extra computation
1705 if (do_linear_search
)
1707 top
= BLOCK_NSYMS (block
);
1711 sym
= BLOCK_SYM (block
, bot
);
1712 if (SYMBOL_NAMESPACE (sym
) == namespace
1714 ? strcmp (SYMBOL_NAME (sym
), mangled_name
) == 0
1715 : SYMBOL_MATCHES_NAME (sym
, name
)))
1717 /* If SYM has aliases, then use any alias that is active
1718 at the current PC. If no alias is active at the current
1719 PC, then use the main symbol.
1721 ?!? Is checking the current pc correct? Is this routine
1722 ever called to look up a symbol from another context?
1724 FIXME: No, it's not correct. If someone sets a
1725 conditional breakpoint at an address, then the
1726 breakpoint's `struct expression' should refer to the
1727 `struct symbol' appropriate for the breakpoint's
1728 address, which may not be the PC.
1730 Even if it were never called from another context,
1731 it's totally bizarre for lookup_symbol's behavior to
1732 depend on the value of the inferior's current PC. We
1733 should pass in the appropriate PC as well as the
1734 block. The interface to lookup_symbol should change
1735 to require the caller to provide a PC. */
1737 if (SYMBOL_ALIASES (sym
))
1738 sym
= find_active_alias (sym
, read_pc ());
1741 if (SYMBOL_CLASS (sym
) != LOC_ARG
&&
1742 SYMBOL_CLASS (sym
) != LOC_LOCAL_ARG
&&
1743 SYMBOL_CLASS (sym
) != LOC_REF_ARG
&&
1744 SYMBOL_CLASS (sym
) != LOC_REGPARM
&&
1745 SYMBOL_CLASS (sym
) != LOC_REGPARM_ADDR
&&
1746 SYMBOL_CLASS (sym
) != LOC_BASEREG_ARG
)
1754 return (sym_found
); /* Will be NULL if not found. */
1757 /* Given a main symbol SYM and ADDR, search through the alias
1758 list to determine if an alias is active at ADDR and return
1761 If no alias is active, then return SYM. */
1763 static struct symbol
*
1764 find_active_alias (struct symbol
*sym
, CORE_ADDR addr
)
1766 struct range_list
*r
;
1767 struct alias_list
*aliases
;
1769 /* If we have aliases, check them first. */
1770 aliases
= SYMBOL_ALIASES (sym
);
1774 if (!SYMBOL_RANGES (aliases
->sym
))
1775 return aliases
->sym
;
1776 for (r
= SYMBOL_RANGES (aliases
->sym
); r
; r
= r
->next
)
1778 if (r
->start
<= addr
&& r
->end
> addr
)
1779 return aliases
->sym
;
1781 aliases
= aliases
->next
;
1784 /* Nothing found, return the main symbol. */
1789 /* Return the symbol for the function which contains a specified
1790 lexical block, described by a struct block BL. */
1793 block_function (struct block
*bl
)
1795 while (BLOCK_FUNCTION (bl
) == 0 && BLOCK_SUPERBLOCK (bl
) != 0)
1796 bl
= BLOCK_SUPERBLOCK (bl
);
1798 return BLOCK_FUNCTION (bl
);
1801 /* Find the symtab associated with PC and SECTION. Look through the
1802 psymtabs and read in another symtab if necessary. */
1805 find_pc_sect_symtab (CORE_ADDR pc
, asection
*section
)
1807 register struct block
*b
;
1808 struct blockvector
*bv
;
1809 register struct symtab
*s
= NULL
;
1810 register struct symtab
*best_s
= NULL
;
1811 register struct partial_symtab
*ps
;
1812 register struct objfile
*objfile
;
1813 CORE_ADDR distance
= 0;
1814 struct minimal_symbol
*msymbol
;
1816 /* If we know that this is not a text address, return failure. This is
1817 necessary because we loop based on the block's high and low code
1818 addresses, which do not include the data ranges, and because
1819 we call find_pc_sect_psymtab which has a similar restriction based
1820 on the partial_symtab's texthigh and textlow. */
1821 msymbol
= lookup_minimal_symbol_by_pc_section (pc
, section
);
1823 && (msymbol
->type
== mst_data
1824 || msymbol
->type
== mst_bss
1825 || msymbol
->type
== mst_abs
1826 || msymbol
->type
== mst_file_data
1827 || msymbol
->type
== mst_file_bss
))
1830 /* Search all symtabs for the one whose file contains our address, and which
1831 is the smallest of all the ones containing the address. This is designed
1832 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1833 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1834 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1836 This happens for native ecoff format, where code from included files
1837 gets its own symtab. The symtab for the included file should have
1838 been read in already via the dependency mechanism.
1839 It might be swifter to create several symtabs with the same name
1840 like xcoff does (I'm not sure).
1842 It also happens for objfiles that have their functions reordered.
1843 For these, the symtab we are looking for is not necessarily read in. */
1845 ALL_SYMTABS (objfile
, s
)
1847 bv
= BLOCKVECTOR (s
);
1848 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1850 if (BLOCK_START (b
) <= pc
1851 && BLOCK_END (b
) > pc
1853 || BLOCK_END (b
) - BLOCK_START (b
) < distance
))
1855 /* For an objfile that has its functions reordered,
1856 find_pc_psymtab will find the proper partial symbol table
1857 and we simply return its corresponding symtab. */
1858 /* In order to better support objfiles that contain both
1859 stabs and coff debugging info, we continue on if a psymtab
1861 if ((objfile
->flags
& OBJF_REORDERED
) && objfile
->psymtabs
)
1863 ps
= find_pc_sect_psymtab (pc
, section
);
1865 return PSYMTAB_TO_SYMTAB (ps
);
1870 struct symbol
*sym
= NULL
;
1872 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
1874 fixup_symbol_section (sym
, objfile
);
1875 if (section
== SYMBOL_BFD_SECTION (sym
))
1878 if ((i
>= BLOCK_BUCKETS (b
)) && (sym
== NULL
))
1879 continue; /* no symbol in this symtab matches section */
1881 distance
= BLOCK_END (b
) - BLOCK_START (b
);
1890 ps
= find_pc_sect_psymtab (pc
, section
);
1894 /* Might want to error() here (in case symtab is corrupt and
1895 will cause a core dump), but maybe we can successfully
1896 continue, so let's not. */
1898 (Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n",
1900 s
= PSYMTAB_TO_SYMTAB (ps
);
1905 /* Find the symtab associated with PC. Look through the psymtabs and
1906 read in another symtab if necessary. Backward compatibility, no section */
1909 find_pc_symtab (CORE_ADDR pc
)
1911 return find_pc_sect_symtab (pc
, find_pc_mapped_section (pc
));
1915 /* Find the source file and line number for a given PC value and SECTION.
1916 Return a structure containing a symtab pointer, a line number,
1917 and a pc range for the entire source line.
1918 The value's .pc field is NOT the specified pc.
1919 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1920 use the line that ends there. Otherwise, in that case, the line
1921 that begins there is used. */
1923 /* The big complication here is that a line may start in one file, and end just
1924 before the start of another file. This usually occurs when you #include
1925 code in the middle of a subroutine. To properly find the end of a line's PC
1926 range, we must search all symtabs associated with this compilation unit, and
1927 find the one whose first PC is closer than that of the next line in this
1930 /* If it's worth the effort, we could be using a binary search. */
1932 struct symtab_and_line
1933 find_pc_sect_line (CORE_ADDR pc
, struct sec
*section
, int notcurrent
)
1936 register struct linetable
*l
;
1939 register struct linetable_entry
*item
;
1940 struct symtab_and_line val
;
1941 struct blockvector
*bv
;
1942 struct minimal_symbol
*msymbol
;
1943 struct minimal_symbol
*mfunsym
;
1945 /* Info on best line seen so far, and where it starts, and its file. */
1947 struct linetable_entry
*best
= NULL
;
1948 CORE_ADDR best_end
= 0;
1949 struct symtab
*best_symtab
= 0;
1951 /* Store here the first line number
1952 of a file which contains the line at the smallest pc after PC.
1953 If we don't find a line whose range contains PC,
1954 we will use a line one less than this,
1955 with a range from the start of that file to the first line's pc. */
1956 struct linetable_entry
*alt
= NULL
;
1957 struct symtab
*alt_symtab
= 0;
1959 /* Info on best line seen in this file. */
1961 struct linetable_entry
*prev
;
1963 /* If this pc is not from the current frame,
1964 it is the address of the end of a call instruction.
1965 Quite likely that is the start of the following statement.
1966 But what we want is the statement containing the instruction.
1967 Fudge the pc to make sure we get that. */
1969 init_sal (&val
); /* initialize to zeroes */
1971 /* It's tempting to assume that, if we can't find debugging info for
1972 any function enclosing PC, that we shouldn't search for line
1973 number info, either. However, GAS can emit line number info for
1974 assembly files --- very helpful when debugging hand-written
1975 assembly code. In such a case, we'd have no debug info for the
1976 function, but we would have line info. */
1981 /* elz: added this because this function returned the wrong
1982 information if the pc belongs to a stub (import/export)
1983 to call a shlib function. This stub would be anywhere between
1984 two functions in the target, and the line info was erroneously
1985 taken to be the one of the line before the pc.
1987 /* RT: Further explanation:
1989 * We have stubs (trampolines) inserted between procedures.
1991 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1992 * exists in the main image.
1994 * In the minimal symbol table, we have a bunch of symbols
1995 * sorted by start address. The stubs are marked as "trampoline",
1996 * the others appear as text. E.g.:
1998 * Minimal symbol table for main image
1999 * main: code for main (text symbol)
2000 * shr1: stub (trampoline symbol)
2001 * foo: code for foo (text symbol)
2003 * Minimal symbol table for "shr1" image:
2005 * shr1: code for shr1 (text symbol)
2008 * So the code below is trying to detect if we are in the stub
2009 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
2010 * and if found, do the symbolization from the real-code address
2011 * rather than the stub address.
2013 * Assumptions being made about the minimal symbol table:
2014 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
2015 * if we're really in the trampoline. If we're beyond it (say
2016 * we're in "foo" in the above example), it'll have a closer
2017 * symbol (the "foo" text symbol for example) and will not
2018 * return the trampoline.
2019 * 2. lookup_minimal_symbol_text() will find a real text symbol
2020 * corresponding to the trampoline, and whose address will
2021 * be different than the trampoline address. I put in a sanity
2022 * check for the address being the same, to avoid an
2023 * infinite recursion.
2025 msymbol
= lookup_minimal_symbol_by_pc (pc
);
2026 if (msymbol
!= NULL
)
2027 if (MSYMBOL_TYPE (msymbol
) == mst_solib_trampoline
)
2029 mfunsym
= lookup_minimal_symbol_text (SYMBOL_NAME (msymbol
), NULL
, NULL
);
2030 if (mfunsym
== NULL
)
2031 /* I eliminated this warning since it is coming out
2032 * in the following situation:
2033 * gdb shmain // test program with shared libraries
2034 * (gdb) break shr1 // function in shared lib
2035 * Warning: In stub for ...
2036 * In the above situation, the shared lib is not loaded yet,
2037 * so of course we can't find the real func/line info,
2038 * but the "break" still works, and the warning is annoying.
2039 * So I commented out the warning. RT */
2040 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
2042 else if (SYMBOL_VALUE (mfunsym
) == SYMBOL_VALUE (msymbol
))
2043 /* Avoid infinite recursion */
2044 /* See above comment about why warning is commented out */
2045 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
2048 return find_pc_line (SYMBOL_VALUE (mfunsym
), 0);
2052 s
= find_pc_sect_symtab (pc
, section
);
2055 /* if no symbol information, return previous pc */
2062 bv
= BLOCKVECTOR (s
);
2064 /* Look at all the symtabs that share this blockvector.
2065 They all have the same apriori range, that we found was right;
2066 but they have different line tables. */
2068 for (; s
&& BLOCKVECTOR (s
) == bv
; s
= s
->next
)
2070 /* Find the best line in this symtab. */
2077 /* I think len can be zero if the symtab lacks line numbers
2078 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
2079 I'm not sure which, and maybe it depends on the symbol
2085 item
= l
->item
; /* Get first line info */
2087 /* Is this file's first line closer than the first lines of other files?
2088 If so, record this file, and its first line, as best alternate. */
2089 if (item
->pc
> pc
&& (!alt
|| item
->pc
< alt
->pc
))
2095 for (i
= 0; i
< len
; i
++, item
++)
2097 /* Leave prev pointing to the linetable entry for the last line
2098 that started at or before PC. */
2105 /* At this point, prev points at the line whose start addr is <= pc, and
2106 item points at the next line. If we ran off the end of the linetable
2107 (pc >= start of the last line), then prev == item. If pc < start of
2108 the first line, prev will not be set. */
2110 /* Is this file's best line closer than the best in the other files?
2111 If so, record this file, and its best line, as best so far. Don't
2112 save prev if it represents the end of a function (i.e. line number
2113 0) instead of a real line. */
2115 if (prev
&& prev
->line
&& (!best
|| prev
->pc
> best
->pc
))
2120 /* Discard BEST_END if it's before the PC of the current BEST. */
2121 if (best_end
<= best
->pc
)
2125 /* If another line (denoted by ITEM) is in the linetable and its
2126 PC is after BEST's PC, but before the current BEST_END, then
2127 use ITEM's PC as the new best_end. */
2128 if (best
&& i
< len
&& item
->pc
> best
->pc
2129 && (best_end
== 0 || best_end
> item
->pc
))
2130 best_end
= item
->pc
;
2136 { /* If we didn't find any line # info, just
2142 val
.symtab
= alt_symtab
;
2143 val
.line
= alt
->line
- 1;
2145 /* Don't return line 0, that means that we didn't find the line. */
2149 val
.pc
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
2153 else if (best
->line
== 0)
2155 /* If our best fit is in a range of PC's for which no line
2156 number info is available (line number is zero) then we didn't
2157 find any valid line information. */
2162 val
.symtab
= best_symtab
;
2163 val
.line
= best
->line
;
2165 if (best_end
&& (!alt
|| best_end
< alt
->pc
))
2170 val
.end
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
2172 val
.section
= section
;
2176 /* Backward compatibility (no section) */
2178 struct symtab_and_line
2179 find_pc_line (CORE_ADDR pc
, int notcurrent
)
2183 section
= find_pc_overlay (pc
);
2184 if (pc_in_unmapped_range (pc
, section
))
2185 pc
= overlay_mapped_address (pc
, section
);
2186 return find_pc_sect_line (pc
, section
, notcurrent
);
2189 /* Find line number LINE in any symtab whose name is the same as
2192 If found, return the symtab that contains the linetable in which it was
2193 found, set *INDEX to the index in the linetable of the best entry
2194 found, and set *EXACT_MATCH nonzero if the value returned is an
2197 If not found, return NULL. */
2200 find_line_symtab (struct symtab
*symtab
, int line
, int *index
, int *exact_match
)
2204 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
2208 struct linetable
*best_linetable
;
2209 struct symtab
*best_symtab
;
2211 /* First try looking it up in the given symtab. */
2212 best_linetable
= LINETABLE (symtab
);
2213 best_symtab
= symtab
;
2214 best_index
= find_line_common (best_linetable
, line
, &exact
);
2215 if (best_index
< 0 || !exact
)
2217 /* Didn't find an exact match. So we better keep looking for
2218 another symtab with the same name. In the case of xcoff,
2219 multiple csects for one source file (produced by IBM's FORTRAN
2220 compiler) produce multiple symtabs (this is unavoidable
2221 assuming csects can be at arbitrary places in memory and that
2222 the GLOBAL_BLOCK of a symtab has a begin and end address). */
2224 /* BEST is the smallest linenumber > LINE so far seen,
2225 or 0 if none has been seen so far.
2226 BEST_INDEX and BEST_LINETABLE identify the item for it. */
2229 struct objfile
*objfile
;
2232 if (best_index
>= 0)
2233 best
= best_linetable
->item
[best_index
].line
;
2237 ALL_SYMTABS (objfile
, s
)
2239 struct linetable
*l
;
2242 if (!STREQ (symtab
->filename
, s
->filename
))
2245 ind
= find_line_common (l
, line
, &exact
);
2255 if (best
== 0 || l
->item
[ind
].line
< best
)
2257 best
= l
->item
[ind
].line
;
2270 *index
= best_index
;
2272 *exact_match
= exact
;
2277 /* Set the PC value for a given source file and line number and return true.
2278 Returns zero for invalid line number (and sets the PC to 0).
2279 The source file is specified with a struct symtab. */
2282 find_line_pc (struct symtab
*symtab
, int line
, CORE_ADDR
*pc
)
2284 struct linetable
*l
;
2291 symtab
= find_line_symtab (symtab
, line
, &ind
, NULL
);
2294 l
= LINETABLE (symtab
);
2295 *pc
= l
->item
[ind
].pc
;
2302 /* Find the range of pc values in a line.
2303 Store the starting pc of the line into *STARTPTR
2304 and the ending pc (start of next line) into *ENDPTR.
2305 Returns 1 to indicate success.
2306 Returns 0 if could not find the specified line. */
2309 find_line_pc_range (struct symtab_and_line sal
, CORE_ADDR
*startptr
,
2312 CORE_ADDR startaddr
;
2313 struct symtab_and_line found_sal
;
2316 if (startaddr
== 0 && !find_line_pc (sal
.symtab
, sal
.line
, &startaddr
))
2319 /* This whole function is based on address. For example, if line 10 has
2320 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
2321 "info line *0x123" should say the line goes from 0x100 to 0x200
2322 and "info line *0x355" should say the line goes from 0x300 to 0x400.
2323 This also insures that we never give a range like "starts at 0x134
2324 and ends at 0x12c". */
2326 found_sal
= find_pc_sect_line (startaddr
, sal
.section
, 0);
2327 if (found_sal
.line
!= sal
.line
)
2329 /* The specified line (sal) has zero bytes. */
2330 *startptr
= found_sal
.pc
;
2331 *endptr
= found_sal
.pc
;
2335 *startptr
= found_sal
.pc
;
2336 *endptr
= found_sal
.end
;
2341 /* Given a line table and a line number, return the index into the line
2342 table for the pc of the nearest line whose number is >= the specified one.
2343 Return -1 if none is found. The value is >= 0 if it is an index.
2345 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
2348 find_line_common (register struct linetable
*l
, register int lineno
,
2354 /* BEST is the smallest linenumber > LINENO so far seen,
2355 or 0 if none has been seen so far.
2356 BEST_INDEX identifies the item for it. */
2358 int best_index
= -1;
2367 for (i
= 0; i
< len
; i
++)
2369 register struct linetable_entry
*item
= &(l
->item
[i
]);
2371 if (item
->line
== lineno
)
2373 /* Return the first (lowest address) entry which matches. */
2378 if (item
->line
> lineno
&& (best
== 0 || item
->line
< best
))
2385 /* If we got here, we didn't get an exact match. */
2392 find_pc_line_pc_range (CORE_ADDR pc
, CORE_ADDR
*startptr
, CORE_ADDR
*endptr
)
2394 struct symtab_and_line sal
;
2395 sal
= find_pc_line (pc
, 0);
2398 return sal
.symtab
!= 0;
2401 /* Given a function symbol SYM, find the symtab and line for the start
2403 If the argument FUNFIRSTLINE is nonzero, we want the first line
2404 of real code inside the function. */
2406 struct symtab_and_line
2407 find_function_start_sal (struct symbol
*sym
, int funfirstline
)
2410 struct symtab_and_line sal
;
2412 pc
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
2413 fixup_symbol_section (sym
, NULL
);
2415 { /* skip "first line" of function (which is actually its prologue) */
2416 asection
*section
= SYMBOL_BFD_SECTION (sym
);
2417 /* If function is in an unmapped overlay, use its unmapped LMA
2418 address, so that SKIP_PROLOGUE has something unique to work on */
2419 if (section_is_overlay (section
) &&
2420 !section_is_mapped (section
))
2421 pc
= overlay_unmapped_address (pc
, section
);
2423 pc
+= FUNCTION_START_OFFSET
;
2424 pc
= SKIP_PROLOGUE (pc
);
2426 /* For overlays, map pc back into its mapped VMA range */
2427 pc
= overlay_mapped_address (pc
, section
);
2429 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2431 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2432 /* Convex: no need to suppress code on first line, if any */
2435 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2436 line is still part of the same function. */
2438 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym
)) <= sal
.end
2439 && sal
.end
< BLOCK_END (SYMBOL_BLOCK_VALUE (sym
)))
2441 /* First pc of next line */
2443 /* Recalculate the line number (might not be N+1). */
2444 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2452 /* If P is of the form "operator[ \t]+..." where `...' is
2453 some legitimate operator text, return a pointer to the
2454 beginning of the substring of the operator text.
2455 Otherwise, return "". */
2457 operator_chars (char *p
, char **end
)
2460 if (strncmp (p
, "operator", 8))
2464 /* Don't get faked out by `operator' being part of a longer
2466 if (isalpha (*p
) || *p
== '_' || *p
== '$' || *p
== '\0')
2469 /* Allow some whitespace between `operator' and the operator symbol. */
2470 while (*p
== ' ' || *p
== '\t')
2473 /* Recognize 'operator TYPENAME'. */
2475 if (isalpha (*p
) || *p
== '_' || *p
== '$')
2477 register char *q
= p
+ 1;
2478 while (isalnum (*q
) || *q
== '_' || *q
== '$')
2487 case '\\': /* regexp quoting */
2490 if (p
[2] == '=') /* 'operator\*=' */
2492 else /* 'operator\*' */
2496 else if (p
[1] == '[')
2499 error ("mismatched quoting on brackets, try 'operator\\[\\]'");
2500 else if (p
[2] == '\\' && p
[3] == ']')
2502 *end
= p
+ 4; /* 'operator\[\]' */
2506 error ("nothing is allowed between '[' and ']'");
2510 /* Gratuitous qoute: skip it and move on. */
2532 if (p
[0] == '-' && p
[1] == '>')
2534 /* Struct pointer member operator 'operator->'. */
2537 *end
= p
+ 3; /* 'operator->*' */
2540 else if (p
[2] == '\\')
2542 *end
= p
+ 4; /* Hopefully 'operator->\*' */
2547 *end
= p
+ 2; /* 'operator->' */
2551 if (p
[1] == '=' || p
[1] == p
[0])
2562 error ("`operator ()' must be specified without whitespace in `()'");
2567 error ("`operator ?:' must be specified without whitespace in `?:'");
2572 error ("`operator []' must be specified without whitespace in `[]'");
2576 error ("`operator %s' not supported", p
);
2585 /* If FILE is not already in the table of files, return zero;
2586 otherwise return non-zero. Optionally add FILE to the table if ADD
2587 is non-zero. If *FIRST is non-zero, forget the old table
2590 filename_seen (const char *file
, int add
, int *first
)
2592 /* Table of files seen so far. */
2593 static const char **tab
= NULL
;
2594 /* Allocated size of tab in elements.
2595 Start with one 256-byte block (when using GNU malloc.c).
2596 24 is the malloc overhead when range checking is in effect. */
2597 static int tab_alloc_size
= (256 - 24) / sizeof (char *);
2598 /* Current size of tab in elements. */
2599 static int tab_cur_size
;
2605 tab
= (const char **) xmalloc (tab_alloc_size
* sizeof (*tab
));
2609 /* Is FILE in tab? */
2610 for (p
= tab
; p
< tab
+ tab_cur_size
; p
++)
2611 if (strcmp (*p
, file
) == 0)
2614 /* No; maybe add it to tab. */
2617 if (tab_cur_size
== tab_alloc_size
)
2619 tab_alloc_size
*= 2;
2620 tab
= (const char **) xrealloc ((char *) tab
,
2621 tab_alloc_size
* sizeof (*tab
));
2623 tab
[tab_cur_size
++] = file
;
2629 /* Slave routine for sources_info. Force line breaks at ,'s.
2630 NAME is the name to print and *FIRST is nonzero if this is the first
2631 name printed. Set *FIRST to zero. */
2633 output_source_filename (char *name
, int *first
)
2635 /* Since a single source file can result in several partial symbol
2636 tables, we need to avoid printing it more than once. Note: if
2637 some of the psymtabs are read in and some are not, it gets
2638 printed both under "Source files for which symbols have been
2639 read" and "Source files for which symbols will be read in on
2640 demand". I consider this a reasonable way to deal with the
2641 situation. I'm not sure whether this can also happen for
2642 symtabs; it doesn't hurt to check. */
2644 /* Was NAME already seen? */
2645 if (filename_seen (name
, 1, first
))
2647 /* Yes; don't print it again. */
2650 /* No; print it and reset *FIRST. */
2657 printf_filtered (", ");
2661 fputs_filtered (name
, gdb_stdout
);
2665 sources_info (char *ignore
, int from_tty
)
2667 register struct symtab
*s
;
2668 register struct partial_symtab
*ps
;
2669 register struct objfile
*objfile
;
2672 if (!have_full_symbols () && !have_partial_symbols ())
2674 error ("No symbol table is loaded. Use the \"file\" command.");
2677 printf_filtered ("Source files for which symbols have been read in:\n\n");
2680 ALL_SYMTABS (objfile
, s
)
2682 output_source_filename (s
->filename
, &first
);
2684 printf_filtered ("\n\n");
2686 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
2689 ALL_PSYMTABS (objfile
, ps
)
2693 output_source_filename (ps
->filename
, &first
);
2696 printf_filtered ("\n");
2700 file_matches (char *file
, char *files
[], int nfiles
)
2704 if (file
!= NULL
&& nfiles
!= 0)
2706 for (i
= 0; i
< nfiles
; i
++)
2708 if (strcmp (files
[i
], lbasename (file
)) == 0)
2712 else if (nfiles
== 0)
2717 /* Free any memory associated with a search. */
2719 free_search_symbols (struct symbol_search
*symbols
)
2721 struct symbol_search
*p
;
2722 struct symbol_search
*next
;
2724 for (p
= symbols
; p
!= NULL
; p
= next
)
2732 do_free_search_symbols_cleanup (void *symbols
)
2734 free_search_symbols (symbols
);
2738 make_cleanup_free_search_symbols (struct symbol_search
*symbols
)
2740 return make_cleanup (do_free_search_symbols_cleanup
, symbols
);
2743 /* Helper function for sort_search_symbols and qsort. Can only
2744 sort symbols, not minimal symbols. */
2746 compare_search_syms (const void *sa
, const void *sb
)
2748 struct symbol_search
**sym_a
= (struct symbol_search
**) sa
;
2749 struct symbol_search
**sym_b
= (struct symbol_search
**) sb
;
2751 return strcmp (SYMBOL_SOURCE_NAME ((*sym_a
)->symbol
),
2752 SYMBOL_SOURCE_NAME ((*sym_b
)->symbol
));
2755 /* Sort the ``nfound'' symbols in the list after prevtail. Leave
2756 prevtail where it is, but update its next pointer to point to
2757 the first of the sorted symbols. */
2758 static struct symbol_search
*
2759 sort_search_symbols (struct symbol_search
*prevtail
, int nfound
)
2761 struct symbol_search
**symbols
, *symp
, *old_next
;
2764 symbols
= (struct symbol_search
**) xmalloc (sizeof (struct symbol_search
*)
2766 symp
= prevtail
->next
;
2767 for (i
= 0; i
< nfound
; i
++)
2772 /* Generally NULL. */
2775 qsort (symbols
, nfound
, sizeof (struct symbol_search
*),
2776 compare_search_syms
);
2779 for (i
= 0; i
< nfound
; i
++)
2781 symp
->next
= symbols
[i
];
2784 symp
->next
= old_next
;
2790 /* Search the symbol table for matches to the regular expression REGEXP,
2791 returning the results in *MATCHES.
2793 Only symbols of KIND are searched:
2794 FUNCTIONS_NAMESPACE - search all functions
2795 TYPES_NAMESPACE - search all type names
2796 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
2797 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
2798 and constants (enums)
2800 free_search_symbols should be called when *MATCHES is no longer needed.
2802 The results are sorted locally; each symtab's global and static blocks are
2803 separately alphabetized.
2806 search_symbols (char *regexp
, namespace_enum kind
, int nfiles
, char *files
[],
2807 struct symbol_search
**matches
)
2809 register struct symtab
*s
;
2810 register struct partial_symtab
*ps
;
2811 register struct blockvector
*bv
;
2812 struct blockvector
*prev_bv
= 0;
2813 register struct block
*b
;
2816 register struct symbol
*sym
;
2817 struct partial_symbol
**psym
;
2818 struct objfile
*objfile
;
2819 struct minimal_symbol
*msymbol
;
2822 static enum minimal_symbol_type types
[]
2824 {mst_data
, mst_text
, mst_abs
, mst_unknown
};
2825 static enum minimal_symbol_type types2
[]
2827 {mst_bss
, mst_file_text
, mst_abs
, mst_unknown
};
2828 static enum minimal_symbol_type types3
[]
2830 {mst_file_data
, mst_solib_trampoline
, mst_abs
, mst_unknown
};
2831 static enum minimal_symbol_type types4
[]
2833 {mst_file_bss
, mst_text
, mst_abs
, mst_unknown
};
2834 enum minimal_symbol_type ourtype
;
2835 enum minimal_symbol_type ourtype2
;
2836 enum minimal_symbol_type ourtype3
;
2837 enum minimal_symbol_type ourtype4
;
2838 struct symbol_search
*sr
;
2839 struct symbol_search
*psr
;
2840 struct symbol_search
*tail
;
2841 struct cleanup
*old_chain
= NULL
;
2843 if (kind
< VARIABLES_NAMESPACE
)
2844 error ("must search on specific namespace");
2846 ourtype
= types
[(int) (kind
- VARIABLES_NAMESPACE
)];
2847 ourtype2
= types2
[(int) (kind
- VARIABLES_NAMESPACE
)];
2848 ourtype3
= types3
[(int) (kind
- VARIABLES_NAMESPACE
)];
2849 ourtype4
= types4
[(int) (kind
- VARIABLES_NAMESPACE
)];
2851 sr
= *matches
= NULL
;
2856 /* Make sure spacing is right for C++ operators.
2857 This is just a courtesy to make the matching less sensitive
2858 to how many spaces the user leaves between 'operator'
2859 and <TYPENAME> or <OPERATOR>. */
2861 char *opname
= operator_chars (regexp
, &opend
);
2864 int fix
= -1; /* -1 means ok; otherwise number of spaces needed. */
2865 if (isalpha (*opname
) || *opname
== '_' || *opname
== '$')
2867 /* There should 1 space between 'operator' and 'TYPENAME'. */
2868 if (opname
[-1] != ' ' || opname
[-2] == ' ')
2873 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
2874 if (opname
[-1] == ' ')
2877 /* If wrong number of spaces, fix it. */
2880 char *tmp
= (char *) alloca (8 + fix
+ strlen (opname
) + 1);
2881 sprintf (tmp
, "operator%.*s%s", fix
, " ", opname
);
2886 if (0 != (val
= re_comp (regexp
)))
2887 error ("Invalid regexp (%s): %s", val
, regexp
);
2890 /* Search through the partial symtabs *first* for all symbols
2891 matching the regexp. That way we don't have to reproduce all of
2892 the machinery below. */
2894 ALL_PSYMTABS (objfile
, ps
)
2896 struct partial_symbol
**bound
, **gbound
, **sbound
;
2902 gbound
= objfile
->global_psymbols
.list
+ ps
->globals_offset
+ ps
->n_global_syms
;
2903 sbound
= objfile
->static_psymbols
.list
+ ps
->statics_offset
+ ps
->n_static_syms
;
2906 /* Go through all of the symbols stored in a partial
2907 symtab in one loop. */
2908 psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
2913 if (bound
== gbound
&& ps
->n_static_syms
!= 0)
2915 psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
2926 /* If it would match (logic taken from loop below)
2927 load the file and go on to the next one */
2928 if (file_matches (ps
->filename
, files
, nfiles
)
2929 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (*psym
))
2930 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (*psym
) != LOC_TYPEDEF
2931 && SYMBOL_CLASS (*psym
) != LOC_BLOCK
)
2932 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
)
2933 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_TYPEDEF
)
2934 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
))))
2936 PSYMTAB_TO_SYMTAB (ps
);
2944 /* Here, we search through the minimal symbol tables for functions
2945 and variables that match, and force their symbols to be read.
2946 This is in particular necessary for demangled variable names,
2947 which are no longer put into the partial symbol tables.
2948 The symbol will then be found during the scan of symtabs below.
2950 For functions, find_pc_symtab should succeed if we have debug info
2951 for the function, for variables we have to call lookup_symbol
2952 to determine if the variable has debug info.
2953 If the lookup fails, set found_misc so that we will rescan to print
2954 any matching symbols without debug info.
2957 if (nfiles
== 0 && (kind
== VARIABLES_NAMESPACE
|| kind
== FUNCTIONS_NAMESPACE
))
2959 ALL_MSYMBOLS (objfile
, msymbol
)
2961 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
2962 MSYMBOL_TYPE (msymbol
) == ourtype2
||
2963 MSYMBOL_TYPE (msymbol
) == ourtype3
||
2964 MSYMBOL_TYPE (msymbol
) == ourtype4
)
2966 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
2968 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
)))
2970 if (kind
== FUNCTIONS_NAMESPACE
)
2978 if (SYMBOL_DEMANGLED_NAME (msymbol
) != NULL
)
2980 = lookup_symbol_aux_minsyms (SYMBOL_DEMANGLED_NAME
2982 SYMBOL_NAME (msymbol
),
2987 = lookup_symbol_aux_minsyms (SYMBOL_NAME (msymbol
),
3001 ALL_SYMTABS (objfile
, s
)
3003 bv
= BLOCKVECTOR (s
);
3004 /* Often many files share a blockvector.
3005 Scan each blockvector only once so that
3006 we don't get every symbol many times.
3007 It happens that the first symtab in the list
3008 for any given blockvector is the main file. */
3010 for (i
= GLOBAL_BLOCK
; i
<= STATIC_BLOCK
; i
++)
3012 struct symbol_search
*prevtail
= tail
;
3014 b
= BLOCKVECTOR_BLOCK (bv
, i
);
3015 ALL_BLOCK_SYMBOLS (b
, j
, sym
)
3018 if (file_matches (s
->filename
, files
, nfiles
)
3019 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (sym
))
3020 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (sym
) != LOC_TYPEDEF
3021 && SYMBOL_CLASS (sym
) != LOC_BLOCK
3022 && SYMBOL_CLASS (sym
) != LOC_CONST
)
3023 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
)
3024 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
3025 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
))))
3028 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
3032 psr
->msymbol
= NULL
;
3044 if (prevtail
== NULL
)
3046 struct symbol_search dummy
;
3049 tail
= sort_search_symbols (&dummy
, nfound
);
3052 old_chain
= make_cleanup_free_search_symbols (sr
);
3055 tail
= sort_search_symbols (prevtail
, nfound
);
3061 /* If there are no eyes, avoid all contact. I mean, if there are
3062 no debug symbols, then print directly from the msymbol_vector. */
3064 if (found_misc
|| kind
!= FUNCTIONS_NAMESPACE
)
3066 ALL_MSYMBOLS (objfile
, msymbol
)
3068 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
3069 MSYMBOL_TYPE (msymbol
) == ourtype2
||
3070 MSYMBOL_TYPE (msymbol
) == ourtype3
||
3071 MSYMBOL_TYPE (msymbol
) == ourtype4
)
3073 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
3075 /* Functions: Look up by address. */
3076 if (kind
!= FUNCTIONS_NAMESPACE
||
3077 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
))))
3079 /* Variables/Absolutes: Look up by name */
3080 if (lookup_symbol (SYMBOL_NAME (msymbol
),
3081 (struct block
*) NULL
, VAR_NAMESPACE
,
3082 0, (struct symtab
**) NULL
) == NULL
)
3085 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
3087 psr
->msymbol
= msymbol
;
3094 old_chain
= make_cleanup_free_search_symbols (sr
);
3108 discard_cleanups (old_chain
);
3111 /* Helper function for symtab_symbol_info, this function uses
3112 the data returned from search_symbols() to print information
3113 regarding the match to gdb_stdout.
3116 print_symbol_info (namespace_enum kind
, struct symtab
*s
, struct symbol
*sym
,
3117 int block
, char *last
)
3119 if (last
== NULL
|| strcmp (last
, s
->filename
) != 0)
3121 fputs_filtered ("\nFile ", gdb_stdout
);
3122 fputs_filtered (s
->filename
, gdb_stdout
);
3123 fputs_filtered (":\n", gdb_stdout
);
3126 if (kind
!= TYPES_NAMESPACE
&& block
== STATIC_BLOCK
)
3127 printf_filtered ("static ");
3129 /* Typedef that is not a C++ class */
3130 if (kind
== TYPES_NAMESPACE
3131 && SYMBOL_NAMESPACE (sym
) != STRUCT_NAMESPACE
)
3132 typedef_print (SYMBOL_TYPE (sym
), sym
, gdb_stdout
);
3133 /* variable, func, or typedef-that-is-c++-class */
3134 else if (kind
< TYPES_NAMESPACE
||
3135 (kind
== TYPES_NAMESPACE
&&
3136 SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
))
3138 type_print (SYMBOL_TYPE (sym
),
3139 (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
3140 ? "" : SYMBOL_SOURCE_NAME (sym
)),
3143 printf_filtered (";\n");
3147 /* This help function for symtab_symbol_info() prints information
3148 for non-debugging symbols to gdb_stdout.
3151 print_msymbol_info (struct minimal_symbol
*msymbol
)
3155 if (TARGET_ADDR_BIT
<= 32)
3156 tmp
= local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol
)
3157 & (CORE_ADDR
) 0xffffffff,
3160 tmp
= local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol
),
3162 printf_filtered ("%s %s\n",
3163 tmp
, SYMBOL_SOURCE_NAME (msymbol
));
3166 /* This is the guts of the commands "info functions", "info types", and
3167 "info variables". It calls search_symbols to find all matches and then
3168 print_[m]symbol_info to print out some useful information about the
3172 symtab_symbol_info (char *regexp
, namespace_enum kind
, int from_tty
)
3174 static char *classnames
[]
3176 {"variable", "function", "type", "method"};
3177 struct symbol_search
*symbols
;
3178 struct symbol_search
*p
;
3179 struct cleanup
*old_chain
;
3180 char *last_filename
= NULL
;
3183 /* must make sure that if we're interrupted, symbols gets freed */
3184 search_symbols (regexp
, kind
, 0, (char **) NULL
, &symbols
);
3185 old_chain
= make_cleanup_free_search_symbols (symbols
);
3187 printf_filtered (regexp
3188 ? "All %ss matching regular expression \"%s\":\n"
3189 : "All defined %ss:\n",
3190 classnames
[(int) (kind
- VARIABLES_NAMESPACE
)], regexp
);
3192 for (p
= symbols
; p
!= NULL
; p
= p
->next
)
3196 if (p
->msymbol
!= NULL
)
3200 printf_filtered ("\nNon-debugging symbols:\n");
3203 print_msymbol_info (p
->msymbol
);
3207 print_symbol_info (kind
,
3212 last_filename
= p
->symtab
->filename
;
3216 do_cleanups (old_chain
);
3220 variables_info (char *regexp
, int from_tty
)
3222 symtab_symbol_info (regexp
, VARIABLES_NAMESPACE
, from_tty
);
3226 functions_info (char *regexp
, int from_tty
)
3228 symtab_symbol_info (regexp
, FUNCTIONS_NAMESPACE
, from_tty
);
3233 types_info (char *regexp
, int from_tty
)
3235 symtab_symbol_info (regexp
, TYPES_NAMESPACE
, from_tty
);
3238 /* Breakpoint all functions matching regular expression. */
3241 rbreak_command_wrapper (char *regexp
, int from_tty
)
3243 rbreak_command (regexp
, from_tty
);
3247 rbreak_command (char *regexp
, int from_tty
)
3249 struct symbol_search
*ss
;
3250 struct symbol_search
*p
;
3251 struct cleanup
*old_chain
;
3253 search_symbols (regexp
, FUNCTIONS_NAMESPACE
, 0, (char **) NULL
, &ss
);
3254 old_chain
= make_cleanup_free_search_symbols (ss
);
3256 for (p
= ss
; p
!= NULL
; p
= p
->next
)
3258 if (p
->msymbol
== NULL
)
3260 char *string
= (char *) alloca (strlen (p
->symtab
->filename
)
3261 + strlen (SYMBOL_NAME (p
->symbol
))
3263 strcpy (string
, p
->symtab
->filename
);
3264 strcat (string
, ":'");
3265 strcat (string
, SYMBOL_NAME (p
->symbol
));
3266 strcat (string
, "'");
3267 break_command (string
, from_tty
);
3268 print_symbol_info (FUNCTIONS_NAMESPACE
,
3272 p
->symtab
->filename
);
3276 break_command (SYMBOL_NAME (p
->msymbol
), from_tty
);
3277 printf_filtered ("<function, no debug info> %s;\n",
3278 SYMBOL_SOURCE_NAME (p
->msymbol
));
3282 do_cleanups (old_chain
);
3286 /* Return Nonzero if block a is lexically nested within block b,
3287 or if a and b have the same pc range.
3288 Return zero otherwise. */
3290 contained_in (struct block
*a
, struct block
*b
)
3294 return BLOCK_START (a
) >= BLOCK_START (b
)
3295 && BLOCK_END (a
) <= BLOCK_END (b
);
3299 /* Helper routine for make_symbol_completion_list. */
3301 static int return_val_size
;
3302 static int return_val_index
;
3303 static char **return_val
;
3305 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
3307 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
3308 /* Put only the mangled name on the list. */ \
3309 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
3310 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
3311 completion_list_add_name \
3312 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
3314 completion_list_add_name \
3315 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
3318 /* Test to see if the symbol specified by SYMNAME (which is already
3319 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3320 characters. If so, add it to the current completion list. */
3323 completion_list_add_name (char *symname
, char *sym_text
, int sym_text_len
,
3324 char *text
, char *word
)
3329 /* clip symbols that cannot match */
3331 if (strncmp (symname
, sym_text
, sym_text_len
) != 0)
3336 /* We have a match for a completion, so add SYMNAME to the current list
3337 of matches. Note that the name is moved to freshly malloc'd space. */
3341 if (word
== sym_text
)
3343 new = xmalloc (strlen (symname
) + 5);
3344 strcpy (new, symname
);
3346 else if (word
> sym_text
)
3348 /* Return some portion of symname. */
3349 new = xmalloc (strlen (symname
) + 5);
3350 strcpy (new, symname
+ (word
- sym_text
));
3354 /* Return some of SYM_TEXT plus symname. */
3355 new = xmalloc (strlen (symname
) + (sym_text
- word
) + 5);
3356 strncpy (new, word
, sym_text
- word
);
3357 new[sym_text
- word
] = '\0';
3358 strcat (new, symname
);
3361 if (return_val_index
+ 3 > return_val_size
)
3363 newsize
= (return_val_size
*= 2) * sizeof (char *);
3364 return_val
= (char **) xrealloc ((char *) return_val
, newsize
);
3366 return_val
[return_val_index
++] = new;
3367 return_val
[return_val_index
] = NULL
;
3371 /* Return a NULL terminated array of all symbols (regardless of class)
3372 which begin by matching TEXT. If the answer is no symbols, then
3373 the return value is an array which contains only a NULL pointer.
3375 Problem: All of the symbols have to be copied because readline frees them.
3376 I'm not going to worry about this; hopefully there won't be that many. */
3379 make_symbol_completion_list (char *text
, char *word
)
3381 register struct symbol
*sym
;
3382 register struct symtab
*s
;
3383 register struct partial_symtab
*ps
;
3384 register struct minimal_symbol
*msymbol
;
3385 register struct objfile
*objfile
;
3386 register struct block
*b
, *surrounding_static_block
= 0;
3388 struct partial_symbol
**psym
;
3389 /* The symbol we are completing on. Points in same buffer as text. */
3391 /* Length of sym_text. */
3394 /* Now look for the symbol we are supposed to complete on.
3395 FIXME: This should be language-specific. */
3399 char *quote_pos
= NULL
;
3401 /* First see if this is a quoted string. */
3403 for (p
= text
; *p
!= '\0'; ++p
)
3405 if (quote_found
!= '\0')
3407 if (*p
== quote_found
)
3408 /* Found close quote. */
3410 else if (*p
== '\\' && p
[1] == quote_found
)
3411 /* A backslash followed by the quote character
3412 doesn't end the string. */
3415 else if (*p
== '\'' || *p
== '"')
3421 if (quote_found
== '\'')
3422 /* A string within single quotes can be a symbol, so complete on it. */
3423 sym_text
= quote_pos
+ 1;
3424 else if (quote_found
== '"')
3425 /* A double-quoted string is never a symbol, nor does it make sense
3426 to complete it any other way. */
3428 return_val
= (char **) xmalloc (sizeof (char *));
3429 return_val
[0] = NULL
;
3434 /* It is not a quoted string. Break it based on the characters
3435 which are in symbols. */
3438 if (isalnum (p
[-1]) || p
[-1] == '_' || p
[-1] == '\0')
3447 sym_text_len
= strlen (sym_text
);
3449 return_val_size
= 100;
3450 return_val_index
= 0;
3451 return_val
= (char **) xmalloc ((return_val_size
+ 1) * sizeof (char *));
3452 return_val
[0] = NULL
;
3454 /* Look through the partial symtabs for all symbols which begin
3455 by matching SYM_TEXT. Add each one that you find to the list. */
3457 ALL_PSYMTABS (objfile
, ps
)
3459 /* If the psymtab's been read in we'll get it when we search
3460 through the blockvector. */
3464 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
3465 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
3466 + ps
->n_global_syms
);
3469 /* If interrupted, then quit. */
3471 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
3474 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
3475 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
3476 + ps
->n_static_syms
);
3480 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
3484 /* At this point scan through the misc symbol vectors and add each
3485 symbol you find to the list. Eventually we want to ignore
3486 anything that isn't a text symbol (everything else will be
3487 handled by the psymtab code above). */
3489 ALL_MSYMBOLS (objfile
, msymbol
)
3492 COMPLETION_LIST_ADD_SYMBOL (msymbol
, sym_text
, sym_text_len
, text
, word
);
3495 /* Search upwards from currently selected frame (so that we can
3496 complete on local vars. */
3498 for (b
= get_selected_block (0); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
3500 if (!BLOCK_SUPERBLOCK (b
))
3502 surrounding_static_block
= b
; /* For elmin of dups */
3505 /* Also catch fields of types defined in this places which match our
3506 text string. Only complete on types visible from current context. */
3508 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
3510 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3511 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
3513 struct type
*t
= SYMBOL_TYPE (sym
);
3514 enum type_code c
= TYPE_CODE (t
);
3516 if (c
== TYPE_CODE_UNION
|| c
== TYPE_CODE_STRUCT
)
3518 for (j
= TYPE_N_BASECLASSES (t
); j
< TYPE_NFIELDS (t
); j
++)
3520 if (TYPE_FIELD_NAME (t
, j
))
3522 completion_list_add_name (TYPE_FIELD_NAME (t
, j
),
3523 sym_text
, sym_text_len
, text
, word
);
3531 /* Go through the symtabs and check the externs and statics for
3532 symbols which match. */
3534 ALL_SYMTABS (objfile
, s
)
3537 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3538 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
3540 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3544 ALL_SYMTABS (objfile
, s
)
3547 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3548 /* Don't do this block twice. */
3549 if (b
== surrounding_static_block
)
3551 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
3553 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3557 return (return_val
);
3560 /* Like make_symbol_completion_list, but returns a list of symbols
3561 defined in a source file FILE. */
3564 make_file_symbol_completion_list (char *text
, char *word
, char *srcfile
)
3566 register struct symbol
*sym
;
3567 register struct symtab
*s
;
3568 register struct block
*b
;
3570 /* The symbol we are completing on. Points in same buffer as text. */
3572 /* Length of sym_text. */
3575 /* Now look for the symbol we are supposed to complete on.
3576 FIXME: This should be language-specific. */
3580 char *quote_pos
= NULL
;
3582 /* First see if this is a quoted string. */
3584 for (p
= text
; *p
!= '\0'; ++p
)
3586 if (quote_found
!= '\0')
3588 if (*p
== quote_found
)
3589 /* Found close quote. */
3591 else if (*p
== '\\' && p
[1] == quote_found
)
3592 /* A backslash followed by the quote character
3593 doesn't end the string. */
3596 else if (*p
== '\'' || *p
== '"')
3602 if (quote_found
== '\'')
3603 /* A string within single quotes can be a symbol, so complete on it. */
3604 sym_text
= quote_pos
+ 1;
3605 else if (quote_found
== '"')
3606 /* A double-quoted string is never a symbol, nor does it make sense
3607 to complete it any other way. */
3609 return_val
= (char **) xmalloc (sizeof (char *));
3610 return_val
[0] = NULL
;
3615 /* It is not a quoted string. Break it based on the characters
3616 which are in symbols. */
3619 if (isalnum (p
[-1]) || p
[-1] == '_' || p
[-1] == '\0')
3628 sym_text_len
= strlen (sym_text
);
3630 return_val_size
= 10;
3631 return_val_index
= 0;
3632 return_val
= (char **) xmalloc ((return_val_size
+ 1) * sizeof (char *));
3633 return_val
[0] = NULL
;
3635 /* Find the symtab for SRCFILE (this loads it if it was not yet read
3637 s
= lookup_symtab (srcfile
);
3640 /* Maybe they typed the file with leading directories, while the
3641 symbol tables record only its basename. */
3642 const char *tail
= lbasename (srcfile
);
3645 s
= lookup_symtab (tail
);
3648 /* If we have no symtab for that file, return an empty list. */
3650 return (return_val
);
3652 /* Go through this symtab and check the externs and statics for
3653 symbols which match. */
3655 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3656 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
3658 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3661 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3662 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
3664 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3667 return (return_val
);
3670 /* A helper function for make_source_files_completion_list. It adds
3671 another file name to a list of possible completions, growing the
3672 list as necessary. */
3675 add_filename_to_list (const char *fname
, char *text
, char *word
,
3676 char ***list
, int *list_used
, int *list_alloced
)
3679 size_t fnlen
= strlen (fname
);
3681 if (*list_used
+ 1 >= *list_alloced
)
3684 *list
= (char **) xrealloc ((char *) *list
,
3685 *list_alloced
* sizeof (char *));
3690 /* Return exactly fname. */
3691 new = xmalloc (fnlen
+ 5);
3692 strcpy (new, fname
);
3694 else if (word
> text
)
3696 /* Return some portion of fname. */
3697 new = xmalloc (fnlen
+ 5);
3698 strcpy (new, fname
+ (word
- text
));
3702 /* Return some of TEXT plus fname. */
3703 new = xmalloc (fnlen
+ (text
- word
) + 5);
3704 strncpy (new, word
, text
- word
);
3705 new[text
- word
] = '\0';
3706 strcat (new, fname
);
3708 (*list
)[*list_used
] = new;
3709 (*list
)[++*list_used
] = NULL
;
3713 not_interesting_fname (const char *fname
)
3715 static const char *illegal_aliens
[] = {
3716 "_globals_", /* inserted by coff_symtab_read */
3721 for (i
= 0; illegal_aliens
[i
]; i
++)
3723 if (strcmp (fname
, illegal_aliens
[i
]) == 0)
3729 /* Return a NULL terminated array of all source files whose names
3730 begin with matching TEXT. The file names are looked up in the
3731 symbol tables of this program. If the answer is no matchess, then
3732 the return value is an array which contains only a NULL pointer. */
3735 make_source_files_completion_list (char *text
, char *word
)
3737 register struct symtab
*s
;
3738 register struct partial_symtab
*ps
;
3739 register struct objfile
*objfile
;
3741 int list_alloced
= 1;
3743 size_t text_len
= strlen (text
);
3744 char **list
= (char **) xmalloc (list_alloced
* sizeof (char *));
3745 const char *base_name
;
3749 if (!have_full_symbols () && !have_partial_symbols ())
3752 ALL_SYMTABS (objfile
, s
)
3754 if (not_interesting_fname (s
->filename
))
3756 if (!filename_seen (s
->filename
, 1, &first
)
3757 #if HAVE_DOS_BASED_FILE_SYSTEM
3758 && strncasecmp (s
->filename
, text
, text_len
) == 0
3760 && strncmp (s
->filename
, text
, text_len
) == 0
3764 /* This file matches for a completion; add it to the current
3766 add_filename_to_list (s
->filename
, text
, word
,
3767 &list
, &list_used
, &list_alloced
);
3771 /* NOTE: We allow the user to type a base name when the
3772 debug info records leading directories, but not the other
3773 way around. This is what subroutines of breakpoint
3774 command do when they parse file names. */
3775 base_name
= lbasename (s
->filename
);
3776 if (base_name
!= s
->filename
3777 && !filename_seen (base_name
, 1, &first
)
3778 #if HAVE_DOS_BASED_FILE_SYSTEM
3779 && strncasecmp (base_name
, text
, text_len
) == 0
3781 && strncmp (base_name
, text
, text_len
) == 0
3784 add_filename_to_list (base_name
, text
, word
,
3785 &list
, &list_used
, &list_alloced
);
3789 ALL_PSYMTABS (objfile
, ps
)
3791 if (not_interesting_fname (ps
->filename
))
3795 if (!filename_seen (ps
->filename
, 1, &first
)
3796 #if HAVE_DOS_BASED_FILE_SYSTEM
3797 && strncasecmp (ps
->filename
, text
, text_len
) == 0
3799 && strncmp (ps
->filename
, text
, text_len
) == 0
3803 /* This file matches for a completion; add it to the
3804 current list of matches. */
3805 add_filename_to_list (ps
->filename
, text
, word
,
3806 &list
, &list_used
, &list_alloced
);
3811 base_name
= lbasename (ps
->filename
);
3812 if (base_name
!= ps
->filename
3813 && !filename_seen (base_name
, 1, &first
)
3814 #if HAVE_DOS_BASED_FILE_SYSTEM
3815 && strncasecmp (base_name
, text
, text_len
) == 0
3817 && strncmp (base_name
, text
, text_len
) == 0
3820 add_filename_to_list (base_name
, text
, word
,
3821 &list
, &list_used
, &list_alloced
);
3829 /* Determine if PC is in the prologue of a function. The prologue is the area
3830 between the first instruction of a function, and the first executable line.
3831 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
3833 If non-zero, func_start is where we think the prologue starts, possibly
3834 by previous examination of symbol table information.
3838 in_prologue (CORE_ADDR pc
, CORE_ADDR func_start
)
3840 struct symtab_and_line sal
;
3841 CORE_ADDR func_addr
, func_end
;
3843 /* We have several sources of information we can consult to figure
3845 - Compilers usually emit line number info that marks the prologue
3846 as its own "source line". So the ending address of that "line"
3847 is the end of the prologue. If available, this is the most
3849 - The minimal symbols and partial symbols, which can usually tell
3850 us the starting and ending addresses of a function.
3851 - If we know the function's start address, we can call the
3852 architecture-defined SKIP_PROLOGUE function to analyze the
3853 instruction stream and guess where the prologue ends.
3854 - Our `func_start' argument; if non-zero, this is the caller's
3855 best guess as to the function's entry point. At the time of
3856 this writing, handle_inferior_event doesn't get this right, so
3857 it should be our last resort. */
3859 /* Consult the partial symbol table, to find which function
3861 if (! find_pc_partial_function (pc
, NULL
, &func_addr
, &func_end
))
3863 CORE_ADDR prologue_end
;
3865 /* We don't even have minsym information, so fall back to using
3866 func_start, if given. */
3868 return 1; /* We *might* be in a prologue. */
3870 prologue_end
= SKIP_PROLOGUE (func_start
);
3872 return func_start
<= pc
&& pc
< prologue_end
;
3875 /* If we have line number information for the function, that's
3876 usually pretty reliable. */
3877 sal
= find_pc_line (func_addr
, 0);
3879 /* Now sal describes the source line at the function's entry point,
3880 which (by convention) is the prologue. The end of that "line",
3881 sal.end, is the end of the prologue.
3883 Note that, for functions whose source code is all on a single
3884 line, the line number information doesn't always end up this way.
3885 So we must verify that our purported end-of-prologue address is
3886 *within* the function, not at its start or end. */
3888 || sal
.end
<= func_addr
3889 || func_end
<= sal
.end
)
3891 /* We don't have any good line number info, so use the minsym
3892 information, together with the architecture-specific prologue
3894 CORE_ADDR prologue_end
= SKIP_PROLOGUE (func_addr
);
3896 return func_addr
<= pc
&& pc
< prologue_end
;
3899 /* We have line number info, and it looks good. */
3900 return func_addr
<= pc
&& pc
< sal
.end
;
3904 /* Begin overload resolution functions */
3907 remove_params (const char *demangled_name
)
3913 if (demangled_name
== NULL
)
3916 /* First find the end of the arg list. */
3917 argp
= strrchr (demangled_name
, ')');
3921 /* Back up to the beginning. */
3924 while (argp
-- > demangled_name
)
3928 else if (*argp
== '(')
3937 internal_error (__FILE__
, __LINE__
,
3938 "bad demangled name %s\n", demangled_name
);
3939 while (argp
[-1] == ' ' && argp
> demangled_name
)
3942 new_name
= xmalloc (argp
- demangled_name
+ 1);
3943 memcpy (new_name
, demangled_name
, argp
- demangled_name
);
3944 new_name
[argp
- demangled_name
] = '\0';
3948 /* Helper routine for make_symbol_completion_list. */
3950 static int sym_return_val_size
;
3951 static int sym_return_val_index
;
3952 static struct symbol
**sym_return_val
;
3954 /* Test to see if the symbol specified by SYMNAME (which is already
3955 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3956 characters. If so, add it to the current completion list. */
3959 overload_list_add_symbol (struct symbol
*sym
, char *oload_name
)
3965 /* If there is no type information, we can't do anything, so skip */
3966 if (SYMBOL_TYPE (sym
) == NULL
)
3969 /* skip any symbols that we've already considered. */
3970 for (i
= 0; i
< sym_return_val_index
; ++i
)
3971 if (!strcmp (SYMBOL_NAME (sym
), SYMBOL_NAME (sym_return_val
[i
])))
3974 /* Get the demangled name without parameters */
3975 sym_name
= remove_params (SYMBOL_DEMANGLED_NAME (sym
));
3979 /* skip symbols that cannot match */
3980 if (strcmp (sym_name
, oload_name
) != 0)
3988 /* We have a match for an overload instance, so add SYM to the current list
3989 * of overload instances */
3990 if (sym_return_val_index
+ 3 > sym_return_val_size
)
3992 newsize
= (sym_return_val_size
*= 2) * sizeof (struct symbol
*);
3993 sym_return_val
= (struct symbol
**) xrealloc ((char *) sym_return_val
, newsize
);
3995 sym_return_val
[sym_return_val_index
++] = sym
;
3996 sym_return_val
[sym_return_val_index
] = NULL
;
3999 /* Return a null-terminated list of pointers to function symbols that
4000 * match name of the supplied symbol FSYM.
4001 * This is used in finding all overloaded instances of a function name.
4002 * This has been modified from make_symbol_completion_list. */
4006 make_symbol_overload_list (struct symbol
*fsym
)
4008 register struct symbol
*sym
;
4009 register struct symtab
*s
;
4010 register struct partial_symtab
*ps
;
4011 register struct objfile
*objfile
;
4012 register struct block
*b
, *surrounding_static_block
= 0;
4014 /* The name we are completing on. */
4015 char *oload_name
= NULL
;
4016 /* Length of name. */
4017 int oload_name_len
= 0;
4019 /* Look for the symbol we are supposed to complete on. */
4021 oload_name
= remove_params (SYMBOL_DEMANGLED_NAME (fsym
));
4024 sym_return_val_size
= 1;
4025 sym_return_val
= (struct symbol
**) xmalloc (2 * sizeof (struct symbol
*));
4026 sym_return_val
[0] = fsym
;
4027 sym_return_val
[1] = NULL
;
4029 return sym_return_val
;
4031 oload_name_len
= strlen (oload_name
);
4033 sym_return_val_size
= 100;
4034 sym_return_val_index
= 0;
4035 sym_return_val
= (struct symbol
**) xmalloc ((sym_return_val_size
+ 1) * sizeof (struct symbol
*));
4036 sym_return_val
[0] = NULL
;
4038 /* Look through the partial symtabs for all symbols which begin
4039 by matching OLOAD_NAME. Make sure we read that symbol table in. */
4041 ALL_PSYMTABS (objfile
, ps
)
4043 struct partial_symbol
**psym
;
4045 /* If the psymtab's been read in we'll get it when we search
4046 through the blockvector. */
4050 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
4051 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
4052 + ps
->n_global_syms
);
4055 /* If interrupted, then quit. */
4057 /* This will cause the symbol table to be read if it has not yet been */
4058 s
= PSYMTAB_TO_SYMTAB (ps
);
4061 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
4062 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
4063 + ps
->n_static_syms
);
4067 /* This will cause the symbol table to be read if it has not yet been */
4068 s
= PSYMTAB_TO_SYMTAB (ps
);
4072 /* Search upwards from currently selected frame (so that we can
4073 complete on local vars. */
4075 for (b
= get_selected_block (0); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
4077 if (!BLOCK_SUPERBLOCK (b
))
4079 surrounding_static_block
= b
; /* For elimination of dups */
4082 /* Also catch fields of types defined in this places which match our
4083 text string. Only complete on types visible from current context. */
4085 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
4087 overload_list_add_symbol (sym
, oload_name
);
4091 /* Go through the symtabs and check the externs and statics for
4092 symbols which match. */
4094 ALL_SYMTABS (objfile
, s
)
4097 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
4098 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
4100 overload_list_add_symbol (sym
, oload_name
);
4104 ALL_SYMTABS (objfile
, s
)
4107 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
4108 /* Don't do this block twice. */
4109 if (b
== surrounding_static_block
)
4111 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
4113 overload_list_add_symbol (sym
, oload_name
);
4119 return (sym_return_val
);
4122 /* End of overload resolution functions */
4124 struct symtabs_and_lines
4125 decode_line_spec (char *string
, int funfirstline
)
4127 struct symtabs_and_lines sals
;
4128 struct symtab_and_line cursal
;
4131 error ("Empty line specification.");
4133 /* We use whatever is set as the current source line. We do not try
4134 and get a default or it will recursively call us! */
4135 cursal
= get_current_source_symtab_and_line ();
4137 sals
= decode_line_1 (&string
, funfirstline
,
4138 cursal
.symtab
, cursal
.line
,
4142 error ("Junk at end of line specification: %s", string
);
4147 static char *name_of_main
;
4150 set_main_name (const char *name
)
4152 if (name_of_main
!= NULL
)
4154 xfree (name_of_main
);
4155 name_of_main
= NULL
;
4159 name_of_main
= xstrdup (name
);
4166 if (name_of_main
!= NULL
)
4167 return name_of_main
;
4174 _initialize_symtab (void)
4176 add_info ("variables", variables_info
,
4177 "All global and static variable names, or those matching REGEXP.");
4179 add_com ("whereis", class_info
, variables_info
,
4180 "All global and static variable names, or those matching REGEXP.");
4182 add_info ("functions", functions_info
,
4183 "All function names, or those matching REGEXP.");
4186 /* FIXME: This command has at least the following problems:
4187 1. It prints builtin types (in a very strange and confusing fashion).
4188 2. It doesn't print right, e.g. with
4189 typedef struct foo *FOO
4190 type_print prints "FOO" when we want to make it (in this situation)
4191 print "struct foo *".
4192 I also think "ptype" or "whatis" is more likely to be useful (but if
4193 there is much disagreement "info types" can be fixed). */
4194 add_info ("types", types_info
,
4195 "All type names, or those matching REGEXP.");
4197 add_info ("sources", sources_info
,
4198 "Source files in the program.");
4200 add_com ("rbreak", class_breakpoint
, rbreak_command
,
4201 "Set a breakpoint for all functions matching REGEXP.");
4205 add_com ("lf", class_info
, sources_info
, "Source files in the program");
4206 add_com ("lg", class_info
, variables_info
,
4207 "All global and static variable names, or those matching REGEXP.");
4210 /* Initialize the one built-in type that isn't language dependent... */
4211 builtin_type_error
= init_type (TYPE_CODE_ERROR
, 0, 0,
4212 "<unknown type>", (struct objfile
*) NULL
);