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"
49 #include <sys/types.h>
51 #include "gdb_string.h"
56 /* Prototypes for local functions */
58 static void completion_list_add_name (char *, char *, int, char *, char *);
60 static void rbreak_command (char *, int);
62 static void types_info (char *, int);
64 static void functions_info (char *, int);
66 static void variables_info (char *, int);
68 static void sources_info (char *, int);
70 static void output_source_filename (char *, int *);
72 static int find_line_common (struct linetable
*, int, int *);
74 /* This one is used by linespec.c */
76 char *operator_chars (char *p
, char **end
);
78 static struct partial_symbol
*lookup_partial_symbol (struct partial_symtab
*,
82 static struct symbol
*lookup_symbol_aux (const char *name
,
83 const char *mangled_name
,
84 const struct block
*block
,
85 const namespace_enum
namespace,
86 int *is_a_field_of_this
,
87 struct symtab
**symtab
);
90 struct symbol
*lookup_symbol_aux_local (const char *name
,
91 const char *mangled_name
,
92 const struct block
*block
,
93 const namespace_enum
namespace,
94 struct symtab
**symtab
,
95 const struct block
**static_block
);
98 struct symbol
*lookup_symbol_aux_block (const char *name
,
99 const char *mangled_name
,
100 const struct block
*block
,
101 const namespace_enum
namespace,
102 struct symtab
**symtab
);
105 struct symbol
*lookup_symbol_aux_symtabs (int block_index
,
107 const char *mangled_name
,
108 const namespace_enum
namespace,
109 struct symtab
**symtab
);
112 struct symbol
*lookup_symbol_aux_psymtabs (int block_index
,
114 const char *mangled_name
,
115 const namespace_enum
namespace,
116 struct symtab
**symtab
);
119 struct symbol
*lookup_symbol_aux_minsyms (const char *name
,
120 const char *mangled_name
,
121 const namespace_enum
namespace,
122 int *is_a_field_of_this
,
123 struct symtab
**symtab
);
125 static struct symbol
*find_active_alias (struct symbol
*sym
, CORE_ADDR addr
);
127 /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
128 /* Signals the presence of objects compiled by HP compilers */
129 int hp_som_som_object_present
= 0;
131 static void fixup_section (struct general_symbol_info
*, struct objfile
*);
133 static int file_matches (char *, char **, int);
135 static void print_symbol_info (namespace_enum
,
136 struct symtab
*, struct symbol
*, int, char *);
138 static void print_msymbol_info (struct minimal_symbol
*);
140 static void symtab_symbol_info (char *, namespace_enum
, int);
142 static void overload_list_add_symbol (struct symbol
*sym
, char *oload_name
);
144 void _initialize_symtab (void);
148 /* The single non-language-specific builtin type */
149 struct type
*builtin_type_error
;
151 /* Block in which the most recently searched-for symbol was found.
152 Might be better to make this a parameter to lookup_symbol and
155 const struct block
*block_found
;
157 /* Check for a symtab of a specific name; first in symtabs, then in
158 psymtabs. *If* there is no '/' in the name, a match after a '/'
159 in the symtab filename will also work. */
162 lookup_symtab (const char *name
)
164 register struct symtab
*s
;
165 register struct partial_symtab
*ps
;
166 register struct objfile
*objfile
;
167 char *real_path
= NULL
;
168 char *full_path
= NULL
;
170 /* Here we are interested in canonicalizing an absolute path, not
171 absolutizing a relative path. */
172 if (IS_ABSOLUTE_PATH (name
))
174 full_path
= xfullpath (name
);
175 make_cleanup (xfree
, full_path
);
176 real_path
= gdb_realpath (name
);
177 make_cleanup (xfree
, real_path
);
182 /* First, search for an exact match */
184 ALL_SYMTABS (objfile
, s
)
186 if (FILENAME_CMP (name
, s
->filename
) == 0)
191 /* If the user gave us an absolute path, try to find the file in
192 this symtab and use its absolute path. */
194 if (full_path
!= NULL
)
196 const char *fp
= symtab_to_filename (s
);
197 if (FILENAME_CMP (full_path
, fp
) == 0)
203 if (real_path
!= NULL
)
205 char *rp
= gdb_realpath (symtab_to_filename (s
));
206 make_cleanup (xfree
, rp
);
207 if (FILENAME_CMP (real_path
, rp
) == 0)
214 /* Now, search for a matching tail (only if name doesn't have any dirs) */
216 if (lbasename (name
) == name
)
217 ALL_SYMTABS (objfile
, s
)
219 if (FILENAME_CMP (lbasename (s
->filename
), name
) == 0)
223 /* Same search rules as above apply here, but now we look thru the
226 ps
= lookup_partial_symtab (name
);
231 error ("Internal: readin %s pst for `%s' found when no symtab found.",
234 s
= PSYMTAB_TO_SYMTAB (ps
);
239 /* At this point, we have located the psymtab for this file, but
240 the conversion to a symtab has failed. This usually happens
241 when we are looking up an include file. In this case,
242 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
243 been created. So, we need to run through the symtabs again in
244 order to find the file.
245 XXX - This is a crock, and should be fixed inside of the the
246 symbol parsing routines. */
250 /* Lookup the partial symbol table of a source file named NAME.
251 *If* there is no '/' in the name, a match after a '/'
252 in the psymtab filename will also work. */
254 struct partial_symtab
*
255 lookup_partial_symtab (const char *name
)
257 register struct partial_symtab
*pst
;
258 register struct objfile
*objfile
;
259 char *full_path
= NULL
;
260 char *real_path
= NULL
;
262 /* Here we are interested in canonicalizing an absolute path, not
263 absolutizing a relative path. */
264 if (IS_ABSOLUTE_PATH (name
))
266 full_path
= xfullpath (name
);
267 make_cleanup (xfree
, full_path
);
268 real_path
= gdb_realpath (name
);
269 make_cleanup (xfree
, real_path
);
272 ALL_PSYMTABS (objfile
, pst
)
274 if (FILENAME_CMP (name
, pst
->filename
) == 0)
279 /* If the user gave us an absolute path, try to find the file in
280 this symtab and use its absolute path. */
281 if (full_path
!= NULL
)
283 if (pst
->fullname
== NULL
)
284 source_full_path_of (pst
->filename
, &pst
->fullname
);
285 if (pst
->fullname
!= NULL
286 && FILENAME_CMP (full_path
, pst
->fullname
) == 0)
292 if (real_path
!= NULL
)
295 if (pst
->fullname
== NULL
)
296 source_full_path_of (pst
->filename
, &pst
->fullname
);
297 if (pst
->fullname
!= NULL
)
299 rp
= gdb_realpath (pst
->fullname
);
300 make_cleanup (xfree
, rp
);
302 if (rp
!= NULL
&& FILENAME_CMP (real_path
, rp
) == 0)
309 /* Now, search for a matching tail (only if name doesn't have any dirs) */
311 if (lbasename (name
) == name
)
312 ALL_PSYMTABS (objfile
, pst
)
314 if (FILENAME_CMP (lbasename (pst
->filename
), name
) == 0)
321 /* Mangle a GDB method stub type. This actually reassembles the pieces of the
322 full method name, which consist of the class name (from T), the unadorned
323 method name from METHOD_ID, and the signature for the specific overload,
324 specified by SIGNATURE_ID. Note that this function is g++ specific. */
327 gdb_mangle_name (struct type
*type
, int method_id
, int signature_id
)
329 int mangled_name_len
;
331 struct fn_field
*f
= TYPE_FN_FIELDLIST1 (type
, method_id
);
332 struct fn_field
*method
= &f
[signature_id
];
333 char *field_name
= TYPE_FN_FIELDLIST_NAME (type
, method_id
);
334 char *physname
= TYPE_FN_FIELD_PHYSNAME (f
, signature_id
);
335 char *newname
= type_name_no_tag (type
);
337 /* Does the form of physname indicate that it is the full mangled name
338 of a constructor (not just the args)? */
339 int is_full_physname_constructor
;
342 int is_destructor
= is_destructor_name (physname
);
343 /* Need a new type prefix. */
344 char *const_prefix
= method
->is_const
? "C" : "";
345 char *volatile_prefix
= method
->is_volatile
? "V" : "";
347 int len
= (newname
== NULL
? 0 : strlen (newname
));
349 /* Nothing to do if physname already contains a fully mangled v3 abi name
350 or an operator name. */
351 if ((physname
[0] == '_' && physname
[1] == 'Z')
352 || is_operator_name (field_name
))
353 return xstrdup (physname
);
355 is_full_physname_constructor
= is_constructor_name (physname
);
358 is_full_physname_constructor
|| (newname
&& STREQ (field_name
, newname
));
361 is_destructor
= (strncmp (physname
, "__dt", 4) == 0);
363 if (is_destructor
|| is_full_physname_constructor
)
365 mangled_name
= (char *) xmalloc (strlen (physname
) + 1);
366 strcpy (mangled_name
, physname
);
372 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
374 else if (physname
[0] == 't' || physname
[0] == 'Q')
376 /* The physname for template and qualified methods already includes
378 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
384 sprintf (buf
, "__%s%s%d", const_prefix
, volatile_prefix
, len
);
386 mangled_name_len
= ((is_constructor
? 0 : strlen (field_name
))
387 + strlen (buf
) + len
+ strlen (physname
) + 1);
390 mangled_name
= (char *) xmalloc (mangled_name_len
);
392 mangled_name
[0] = '\0';
394 strcpy (mangled_name
, field_name
);
396 strcat (mangled_name
, buf
);
397 /* If the class doesn't have a name, i.e. newname NULL, then we just
398 mangle it using 0 for the length of the class. Thus it gets mangled
399 as something starting with `::' rather than `classname::'. */
401 strcat (mangled_name
, newname
);
403 strcat (mangled_name
, physname
);
404 return (mangled_name
);
408 /* Initialize the language dependent portion of a symbol
409 depending upon the language for the symbol. */
411 symbol_init_language_specific (struct general_symbol_info
*gsymbol
,
412 enum language language
)
414 gsymbol
->language
= language
;
415 if (gsymbol
->language
== language_cplus
416 || gsymbol
->language
== language_java
417 || gsymbol
->language
== language_objc
)
419 gsymbol
->language_specific
.cplus_specific
.demangled_name
= NULL
;
423 memset (&gsymbol
->language_specific
, 0,
424 sizeof (gsymbol
->language_specific
));
428 /* Functions to initialize a symbol's mangled name. */
430 /* Create the hash table used for demangled names. Each hash entry is
431 a pair of strings; one for the mangled name and one for the demangled
432 name. The entry is hashed via just the mangled name. */
435 create_demangled_names_hash (struct objfile
*objfile
)
437 /* Choose 256 as the starting size of the hash table, somewhat arbitrarily.
438 The hash table code will round this up to the next prime number.
439 Choosing a much larger table size wastes memory, and saves only about
440 1% in symbol reading. */
442 objfile
->demangled_names_hash
= htab_create_alloc_ex
443 (256, htab_hash_string
, (int (*) (const void *, const void *)) streq
,
444 NULL
, objfile
->md
, xmcalloc
, xmfree
);
447 /* Try to determine the demangled name for a symbol, based on the
448 language of that symbol. If the language is set to language_auto,
449 it will attempt to find any demangling algorithm that works and
450 then set the language appropriately. The returned name is allocated
451 by the demangler and should be xfree'd. */
454 symbol_find_demangled_name (struct general_symbol_info
*gsymbol
,
457 char *demangled
= NULL
;
459 if (gsymbol
->language
== language_unknown
)
460 gsymbol
->language
= language_auto
;
461 if (gsymbol
->language
== language_cplus
462 || gsymbol
->language
== language_auto
)
465 cplus_demangle (mangled
, DMGL_PARAMS
| DMGL_ANSI
);
466 if (demangled
!= NULL
)
468 gsymbol
->language
= language_cplus
;
472 if (gsymbol
->language
== language_java
)
475 cplus_demangle (mangled
,
476 DMGL_PARAMS
| DMGL_ANSI
| DMGL_JAVA
);
477 if (demangled
!= NULL
)
479 gsymbol
->language
= language_java
;
486 /* Set both the mangled and demangled (if any) names for GSYMBOL based on
487 NAME and LEN. The hash table corresponding to OBJFILE is used, and the
488 memory comes from that objfile's symbol_obstack. NAME is copied, so the
489 pointer can be discarded after calling this function. */
492 symbol_set_names (struct general_symbol_info
*gsymbol
,
493 const char *name
, int len
, struct objfile
*objfile
)
498 if (objfile
->demangled_names_hash
== NULL
)
499 create_demangled_names_hash (objfile
);
501 /* The stabs reader generally provides names that are not NULL-terminated;
502 most of the other readers don't do this, so we can just use the given
506 char *alloc_name
= alloca (len
+ 1);
507 memcpy (alloc_name
, name
, len
);
509 tmpname
= alloc_name
;
514 slot
= (char **) htab_find_slot (objfile
->demangled_names_hash
, tmpname
, INSERT
);
516 /* If this name is not in the hash table, add it. */
519 char *demangled_name
= symbol_find_demangled_name (gsymbol
, tmpname
);
520 int demangled_len
= demangled_name
? strlen (demangled_name
) : 0;
522 /* If there is a demangled name, place it right after the mangled name.
523 Otherwise, just place a second zero byte after the end of the mangled
525 *slot
= obstack_alloc (&objfile
->symbol_obstack
,
526 len
+ demangled_len
+ 2);
527 memcpy (*slot
, tmpname
, len
+ 1);
530 memcpy (*slot
+ len
+ 1, demangled_name
, demangled_len
+ 1);
531 xfree (demangled_name
);
534 (*slot
)[len
+ 1] = 0;
537 gsymbol
->name
= *slot
;
538 if ((*slot
)[len
+ 1])
539 gsymbol
->language_specific
.cplus_specific
.demangled_name
542 gsymbol
->language_specific
.cplus_specific
.demangled_name
= NULL
;
545 /* Initialize the demangled name of GSYMBOL if possible. Any required space
546 to store the name is obtained from the specified obstack. The function
547 symbol_set_names, above, should be used instead where possible for more
548 efficient memory usage. */
551 symbol_init_demangled_name (struct general_symbol_info
*gsymbol
,
552 struct obstack
*obstack
)
554 char *mangled
= gsymbol
->name
;
555 char *demangled
= NULL
;
557 demangled
= symbol_find_demangled_name (gsymbol
, mangled
);
558 if (gsymbol
->language
== language_cplus
559 || gsymbol
->language
== language_java
)
563 gsymbol
->language_specific
.cplus_specific
.demangled_name
564 = obsavestring (demangled
, strlen (demangled
), obstack
);
568 gsymbol
->language_specific
.cplus_specific
.demangled_name
= NULL
;
572 /* Unknown language; just clean up quietly. */
578 /* Return the source code name of a symbol. In languages where
579 demangling is necessary, this is the demangled name. */
582 symbol_natural_name (const struct general_symbol_info
*gsymbol
)
584 if ((gsymbol
->language
== language_cplus
585 || gsymbol
->language
== language_java
586 || gsymbol
->language
== language_objc
)
587 && (gsymbol
->language_specific
.cplus_specific
.demangled_name
!= NULL
))
589 return gsymbol
->language_specific
.cplus_specific
.demangled_name
;
593 return gsymbol
->name
;
597 /* Return the demangled name for a symbol based on the language for
598 that symbol. If no demangled name exists, return NULL. */
600 symbol_demangled_name (struct general_symbol_info
*gsymbol
)
602 if (gsymbol
->language
== language_cplus
603 || gsymbol
->language
== language_java
604 || gsymbol
->language
== language_objc
)
605 return gsymbol
->language_specific
.cplus_specific
.demangled_name
;
611 /* Initialize the structure fields to zero values. */
613 init_sal (struct symtab_and_line
*sal
)
624 /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
626 struct partial_symtab
*
627 find_pc_sect_psymtab (CORE_ADDR pc
, asection
*section
)
629 register struct partial_symtab
*pst
;
630 register struct objfile
*objfile
;
631 struct minimal_symbol
*msymbol
;
633 /* If we know that this is not a text address, return failure. This is
634 necessary because we loop based on texthigh and textlow, which do
635 not include the data ranges. */
636 msymbol
= lookup_minimal_symbol_by_pc_section (pc
, section
);
638 && (msymbol
->type
== mst_data
639 || msymbol
->type
== mst_bss
640 || msymbol
->type
== mst_abs
641 || msymbol
->type
== mst_file_data
642 || msymbol
->type
== mst_file_bss
))
645 ALL_PSYMTABS (objfile
, pst
)
647 if (pc
>= pst
->textlow
&& pc
< pst
->texthigh
)
649 struct partial_symtab
*tpst
;
651 /* An objfile that has its functions reordered might have
652 many partial symbol tables containing the PC, but
653 we want the partial symbol table that contains the
654 function containing the PC. */
655 if (!(objfile
->flags
& OBJF_REORDERED
) &&
656 section
== 0) /* can't validate section this way */
662 for (tpst
= pst
; tpst
!= NULL
; tpst
= tpst
->next
)
664 if (pc
>= tpst
->textlow
&& pc
< tpst
->texthigh
)
666 struct partial_symbol
*p
;
668 p
= find_pc_sect_psymbol (tpst
, pc
, section
);
670 && SYMBOL_VALUE_ADDRESS (p
)
671 == SYMBOL_VALUE_ADDRESS (msymbol
))
681 /* Find which partial symtab contains PC. Return 0 if none.
682 Backward compatibility, no section */
684 struct partial_symtab
*
685 find_pc_psymtab (CORE_ADDR pc
)
687 return find_pc_sect_psymtab (pc
, find_pc_mapped_section (pc
));
690 /* Find which partial symbol within a psymtab matches PC and SECTION.
691 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
693 struct partial_symbol
*
694 find_pc_sect_psymbol (struct partial_symtab
*psymtab
, CORE_ADDR pc
,
697 struct partial_symbol
*best
= NULL
, *p
, **pp
;
701 psymtab
= find_pc_sect_psymtab (pc
, section
);
705 /* Cope with programs that start at address 0 */
706 best_pc
= (psymtab
->textlow
!= 0) ? psymtab
->textlow
- 1 : 0;
708 /* Search the global symbols as well as the static symbols, so that
709 find_pc_partial_function doesn't use a minimal symbol and thus
710 cache a bad endaddr. */
711 for (pp
= psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
;
712 (pp
- (psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
)
713 < psymtab
->n_global_syms
);
717 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
718 && SYMBOL_CLASS (p
) == LOC_BLOCK
719 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
720 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
721 || (psymtab
->textlow
== 0
722 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
724 if (section
) /* match on a specific section */
726 fixup_psymbol_section (p
, psymtab
->objfile
);
727 if (SYMBOL_BFD_SECTION (p
) != section
)
730 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
735 for (pp
= psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
;
736 (pp
- (psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
)
737 < psymtab
->n_static_syms
);
741 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
742 && SYMBOL_CLASS (p
) == LOC_BLOCK
743 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
744 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
745 || (psymtab
->textlow
== 0
746 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
748 if (section
) /* match on a specific section */
750 fixup_psymbol_section (p
, psymtab
->objfile
);
751 if (SYMBOL_BFD_SECTION (p
) != section
)
754 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
762 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
763 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
765 struct partial_symbol
*
766 find_pc_psymbol (struct partial_symtab
*psymtab
, CORE_ADDR pc
)
768 return find_pc_sect_psymbol (psymtab
, pc
, find_pc_mapped_section (pc
));
771 /* Debug symbols usually don't have section information. We need to dig that
772 out of the minimal symbols and stash that in the debug symbol. */
775 fixup_section (struct general_symbol_info
*ginfo
, struct objfile
*objfile
)
777 struct minimal_symbol
*msym
;
778 msym
= lookup_minimal_symbol (ginfo
->name
, NULL
, objfile
);
782 ginfo
->bfd_section
= SYMBOL_BFD_SECTION (msym
);
783 ginfo
->section
= SYMBOL_SECTION (msym
);
788 fixup_symbol_section (struct symbol
*sym
, struct objfile
*objfile
)
793 if (SYMBOL_BFD_SECTION (sym
))
796 fixup_section (&sym
->ginfo
, objfile
);
801 struct partial_symbol
*
802 fixup_psymbol_section (struct partial_symbol
*psym
, struct objfile
*objfile
)
807 if (SYMBOL_BFD_SECTION (psym
))
810 fixup_section (&psym
->ginfo
, objfile
);
815 /* Find the definition for a specified symbol name NAME
816 in namespace NAMESPACE, visible from lexical block BLOCK.
817 Returns the struct symbol pointer, or zero if no symbol is found.
818 If SYMTAB is non-NULL, store the symbol table in which the
819 symbol was found there, or NULL if not found.
820 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
821 NAME is a field of the current implied argument `this'. If so set
822 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
823 BLOCK_FOUND is set to the block in which NAME is found (in the case of
824 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
826 /* This function has a bunch of loops in it and it would seem to be
827 attractive to put in some QUIT's (though I'm not really sure
828 whether it can run long enough to be really important). But there
829 are a few calls for which it would appear to be bad news to quit
830 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c. (Note
831 that there is C++ code below which can error(), but that probably
832 doesn't affect these calls since they are looking for a known
833 variable and thus can probably assume it will never hit the C++
837 lookup_symbol (const char *name
, const struct block
*block
,
838 const namespace_enum
namespace, int *is_a_field_of_this
,
839 struct symtab
**symtab
)
841 char *demangled_name
= NULL
;
842 const char *modified_name
= NULL
;
843 const char *mangled_name
= NULL
;
844 int needtofreename
= 0;
845 struct symbol
*returnval
;
847 modified_name
= name
;
849 /* If we are using C++ language, demangle the name before doing a lookup, so
850 we can always binary search. */
851 if (current_language
->la_language
== language_cplus
)
853 demangled_name
= cplus_demangle (name
, DMGL_ANSI
| DMGL_PARAMS
);
857 modified_name
= demangled_name
;
862 if (case_sensitivity
== case_sensitive_off
)
868 copy
= (char *) alloca (len
+ 1);
869 for (i
= 0; i
< len
; i
++)
870 copy
[i
] = tolower (name
[i
]);
872 modified_name
= copy
;
875 returnval
= lookup_symbol_aux (modified_name
, mangled_name
, block
,
876 namespace, is_a_field_of_this
, symtab
);
878 xfree (demangled_name
);
883 static struct symbol
*
884 lookup_symbol_aux (const char *name
, const char *mangled_name
,
885 const struct block
*block
, const namespace_enum
namespace,
886 int *is_a_field_of_this
, struct symtab
**symtab
)
889 const struct block
*static_block
;
891 /* Search specified block and its superiors. Don't search
892 STATIC_BLOCK or GLOBAL_BLOCK. */
894 sym
= lookup_symbol_aux_local (name
, mangled_name
, block
, namespace,
895 symtab
, &static_block
);
900 /* NOTE: carlton/2002-11-05: At the time that this code was
901 #ifdeffed out, the value of 'block' was always NULL at this
902 point, hence the bemused comments below. */
904 /* FIXME: this code is never executed--block is always NULL at this
905 point. What is it trying to do, anyway? We already should have
906 checked the STATIC_BLOCK above (it is the superblock of top-level
907 blocks). Why is VAR_NAMESPACE special-cased? */
908 /* Don't need to mess with the psymtabs; if we have a block,
909 that file is read in. If we don't, then we deal later with
910 all the psymtab stuff that needs checking. */
911 /* Note (RT): The following never-executed code looks unnecessary to me also.
912 * If we change the code to use the original (passed-in)
913 * value of 'block', we could cause it to execute, but then what
914 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
915 * 'block' was already searched by the above code. And the STATIC_BLOCK's
916 * of *other* symtabs (those files not containing 'block' lexically)
917 * should not contain 'block' address-wise. So we wouldn't expect this
918 * code to find any 'sym''s that were not found above. I vote for
919 * deleting the following paragraph of code.
921 if (namespace == VAR_NAMESPACE
&& block
!= NULL
)
924 /* Find the right symtab. */
925 ALL_SYMTABS (objfile
, s
)
927 bv
= BLOCKVECTOR (s
);
928 b
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
929 if (BLOCK_START (b
) <= BLOCK_START (block
)
930 && BLOCK_END (b
) > BLOCK_START (block
))
932 sym
= lookup_block_symbol (b
, name
, mangled_name
, VAR_NAMESPACE
);
938 return fixup_symbol_section (sym
, objfile
);
945 /* C++: If requested to do so by the caller,
946 check to see if NAME is a field of `this'. */
947 if (is_a_field_of_this
)
949 struct value
*v
= value_of_this (0);
951 *is_a_field_of_this
= 0;
952 if (v
&& check_field (v
, name
))
954 *is_a_field_of_this
= 1;
961 /* If there's a static block to search, search it next. */
963 /* NOTE: carlton/2002-12-05: There is a question as to whether or
964 not it would be appropriate to search the current global block
965 here as well. (That's what this code used to do before the
966 is_a_field_of_this check was moved up.) On the one hand, it's
967 redundant with the lookup_symbol_aux_symtabs search that happens
968 next. On the other hand, if decode_line_1 is passed an argument
969 like filename:var, then the user presumably wants 'var' to be
970 searched for in filename. On the third hand, there shouldn't be
971 multiple global variables all of which are named 'var', and it's
972 not like decode_line_1 has ever restricted its search to only
973 global variables in a single filename. All in all, only
974 searching the static block here seems best: it's correct and it's
977 /* NOTE: carlton/2002-12-05: There's also a possible performance
978 issue here: if you usually search for global symbols in the
979 current file, then it would be slightly better to search the
980 current global block before searching all the symtabs. But there
981 are other factors that have a much greater effect on performance
982 than that one, so I don't think we should worry about that for
985 if (static_block
!= NULL
)
987 sym
= lookup_symbol_aux_block (name
, mangled_name
, static_block
,
993 /* Now search all global blocks. Do the symtab's first, then
994 check the psymtab's. If a psymtab indicates the existence
995 of the desired name as a global, then do psymtab-to-symtab
996 conversion on the fly and return the found symbol. */
998 sym
= lookup_symbol_aux_symtabs (GLOBAL_BLOCK
, name
, mangled_name
,
1005 /* Check for the possibility of the symbol being a function or
1006 a mangled variable that is stored in one of the minimal symbol tables.
1007 Eventually, all global symbols might be resolved in this way. */
1009 sym
= lookup_symbol_aux_minsyms (name
, mangled_name
,
1010 namespace, is_a_field_of_this
,
1018 sym
= lookup_symbol_aux_psymtabs (GLOBAL_BLOCK
, name
, mangled_name
,
1023 /* Now search all static file-level symbols. Not strictly correct,
1024 but more useful than an error. Do the symtabs first, then check
1025 the psymtabs. If a psymtab indicates the existence of the
1026 desired name as a file-level static, then do psymtab-to-symtab
1027 conversion on the fly and return the found symbol. */
1029 sym
= lookup_symbol_aux_symtabs (STATIC_BLOCK
, name
, mangled_name
,
1034 sym
= lookup_symbol_aux_psymtabs (STATIC_BLOCK
, name
, mangled_name
,
1041 /* Check for the possibility of the symbol being a function or
1042 a global variable that is stored in one of the minimal symbol tables.
1043 The "minimal symbol table" is built from linker-supplied info.
1045 RT: I moved this check to last, after the complete search of
1046 the global (p)symtab's and static (p)symtab's. For HP-generated
1047 symbol tables, this check was causing a premature exit from
1048 lookup_symbol with NULL return, and thus messing up symbol lookups
1049 of things like "c::f". It seems to me a check of the minimal
1050 symbol table ought to be a last resort in any case. I'm vaguely
1051 worried about the comment below which talks about FORTRAN routines "foo_"
1052 though... is it saying we need to do the "minsym" check before
1053 the static check in this case?
1057 sym
= lookup_symbol_aux_minsyms (name
, mangled_name
,
1058 namespace, is_a_field_of_this
,
1071 /* Check to see if the symbol is defined in BLOCK or its superiors.
1072 Don't search STATIC_BLOCK or GLOBAL_BLOCK. If we don't find a
1073 match, store the address of STATIC_BLOCK in static_block. */
1075 static struct symbol
*
1076 lookup_symbol_aux_local (const char *name
, const char *mangled_name
,
1077 const struct block
*block
,
1078 const namespace_enum
namespace,
1079 struct symtab
**symtab
,
1080 const struct block
**static_block
)
1084 /* Check if either no block is specified or it's a global block. */
1086 if (block
== NULL
|| BLOCK_SUPERBLOCK (block
) == NULL
)
1088 *static_block
= NULL
;
1092 while (BLOCK_SUPERBLOCK (BLOCK_SUPERBLOCK (block
)) != NULL
)
1094 sym
= lookup_symbol_aux_block (name
, mangled_name
, block
, namespace,
1098 block
= BLOCK_SUPERBLOCK (block
);
1101 /* We've reached the static block. */
1103 *static_block
= block
;
1107 /* Look up a symbol in a block; if found, locate its symtab, fixup the
1108 symbol, and set block_found appropriately. */
1110 static struct symbol
*
1111 lookup_symbol_aux_block (const char *name
, const char *mangled_name
,
1112 const struct block
*block
,
1113 const namespace_enum
namespace,
1114 struct symtab
**symtab
)
1117 struct objfile
*objfile
= NULL
;
1118 struct blockvector
*bv
;
1120 struct symtab
*s
= NULL
;
1122 sym
= lookup_block_symbol (block
, name
, mangled_name
, namespace);
1125 block_found
= block
;
1128 /* Search the list of symtabs for one which contains the
1129 address of the start of this block. */
1130 ALL_SYMTABS (objfile
, s
)
1132 bv
= BLOCKVECTOR (s
);
1133 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1134 if (BLOCK_START (b
) <= BLOCK_START (block
)
1135 && BLOCK_END (b
) > BLOCK_START (block
))
1142 return fixup_symbol_section (sym
, objfile
);
1148 /* Check to see if the symbol is defined in one of the symtabs.
1149 BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK,
1150 depending on whether or not we want to search global symbols or
1153 static struct symbol
*
1154 lookup_symbol_aux_symtabs (int block_index
,
1155 const char *name
, const char *mangled_name
,
1156 const namespace_enum
namespace,
1157 struct symtab
**symtab
)
1160 struct objfile
*objfile
;
1161 struct blockvector
*bv
;
1162 const struct block
*block
;
1165 ALL_SYMTABS (objfile
, s
)
1167 bv
= BLOCKVECTOR (s
);
1168 block
= BLOCKVECTOR_BLOCK (bv
, block_index
);
1169 sym
= lookup_block_symbol (block
, name
, mangled_name
, namespace);
1172 block_found
= block
;
1175 return fixup_symbol_section (sym
, objfile
);
1182 /* Check to see if the symbol is defined in one of the partial
1183 symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or
1184 STATIC_BLOCK, depending on whether or not we want to search global
1185 symbols or static symbols. */
1187 static struct symbol
*
1188 lookup_symbol_aux_psymtabs (int block_index
, const char *name
,
1189 const char *mangled_name
,
1190 const namespace_enum
namespace,
1191 struct symtab
**symtab
)
1194 struct objfile
*objfile
;
1195 struct blockvector
*bv
;
1196 const struct block
*block
;
1197 struct partial_symtab
*ps
;
1199 const int psymtab_index
= (block_index
== GLOBAL_BLOCK
? 1 : 0);
1201 ALL_PSYMTABS (objfile
, ps
)
1204 && lookup_partial_symbol (ps
, name
, psymtab_index
, namespace))
1206 s
= PSYMTAB_TO_SYMTAB (ps
);
1207 bv
= BLOCKVECTOR (s
);
1208 block
= BLOCKVECTOR_BLOCK (bv
, block_index
);
1209 sym
= lookup_block_symbol (block
, name
, mangled_name
, namespace);
1212 /* This shouldn't be necessary, but as a last resort try
1213 looking in the statics even though the psymtab claimed
1214 the symbol was global, or vice-versa. It's possible
1215 that the psymtab gets it wrong in some cases. */
1217 /* FIXME: carlton/2002-09-30: Should we really do that?
1218 If that happens, isn't it likely to be a GDB error, in
1219 which case we should fix the GDB error rather than
1220 silently dealing with it here? So I'd vote for
1221 removing the check for the symbol in the other
1223 block
= BLOCKVECTOR_BLOCK (bv
,
1224 block_index
== GLOBAL_BLOCK
?
1225 STATIC_BLOCK
: GLOBAL_BLOCK
);
1226 sym
= lookup_block_symbol (block
, name
, mangled_name
, namespace);
1228 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>).",
1229 block_index
== GLOBAL_BLOCK
? "global" : "static",
1230 name
, ps
->filename
, name
, name
);
1234 return fixup_symbol_section (sym
, objfile
);
1241 /* Check for the possibility of the symbol being a function or a
1242 mangled variable that is stored in one of the minimal symbol
1243 tables. Eventually, all global symbols might be resolved in this
1246 /* NOTE: carlton/2002-12-05: At one point, this function was part of
1247 lookup_symbol_aux, and what are now 'return' statements within
1248 lookup_symbol_aux_minsyms returned from lookup_symbol_aux, even if
1249 sym was NULL. As far as I can tell, this was basically accidental;
1250 it didn't happen every time that msymbol was non-NULL, but only if
1251 some additional conditions held as well, and it caused problems
1252 with HP-generated symbol tables. */
1254 static struct symbol
*
1255 lookup_symbol_aux_minsyms (const char *name
,
1256 const char *mangled_name
,
1257 const namespace_enum
namespace,
1258 int *is_a_field_of_this
,
1259 struct symtab
**symtab
)
1262 struct blockvector
*bv
;
1263 const struct block
*block
;
1264 struct minimal_symbol
*msymbol
;
1267 if (namespace == VAR_NAMESPACE
)
1269 msymbol
= lookup_minimal_symbol (name
, NULL
, NULL
);
1271 if (msymbol
!= NULL
)
1273 /* OK, we found a minimal symbol in spite of not finding any
1274 symbol. There are various possible explanations for
1275 this. One possibility is the symbol exists in code not
1276 compiled -g. Another possibility is that the 'psymtab'
1277 isn't doing its job. A third possibility, related to #2,
1278 is that we were confused by name-mangling. For instance,
1279 maybe the psymtab isn't doing its job because it only
1280 know about demangled names, but we were given a mangled
1283 /* We first use the address in the msymbol to try to locate
1284 the appropriate symtab. Note that find_pc_sect_symtab()
1285 has a side-effect of doing psymtab-to-symtab expansion,
1286 for the found symtab. */
1287 s
= find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol
),
1288 SYMBOL_BFD_SECTION (msymbol
));
1291 /* This is a function which has a symtab for its address. */
1292 bv
= BLOCKVECTOR (s
);
1293 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1295 /* This call used to pass `DEPRECATED_SYMBOL_NAME (msymbol)' as the
1296 `name' argument to lookup_block_symbol. But the name
1297 of a minimal symbol is always mangled, so that seems
1298 to be clearly the wrong thing to pass as the
1301 lookup_block_symbol (block
, name
, mangled_name
, namespace);
1302 /* We kept static functions in minimal symbol table as well as
1303 in static scope. We want to find them in the symbol table. */
1306 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1307 sym
= lookup_block_symbol (block
, name
,
1308 mangled_name
, namespace);
1311 /* NOTE: carlton/2002-12-04: The following comment was
1312 taken from a time when two versions of this function
1313 were part of the body of lookup_symbol_aux: this
1314 comment was taken from the version of the function
1315 that was #ifdef HPUXHPPA, and the comment was right
1316 before the 'return NULL' part of lookup_symbol_aux.
1317 (Hence the "Fall through and return 0" comment.)
1318 Elena did some digging into the situation for
1319 Fortran, and she reports:
1321 "I asked around (thanks to Jeff Knaggs), and I think
1322 the story for Fortran goes like this:
1324 "Apparently, in older Fortrans, '_' was not part of
1325 the user namespace. g77 attached a final '_' to
1326 procedure names as the exported symbols for linkage
1327 (foo_) , but the symbols went in the debug info just
1328 like 'foo'. The rationale behind this is not
1329 completely clear, and maybe it was done to other
1330 symbols as well, not just procedures." */
1332 /* If we get here with sym == 0, the symbol was
1333 found in the minimal symbol table
1334 but not in the symtab.
1335 Fall through and return 0 to use the msymbol
1336 definition of "foo_".
1337 (Note that outer code generally follows up a call
1338 to this routine with a call to lookup_minimal_symbol(),
1339 so a 0 return means we'll just flow into that other routine).
1341 This happens for Fortran "foo_" symbols,
1342 which are "foo" in the symtab.
1344 This can also happen if "asm" is used to make a
1345 regular symbol but not a debugging symbol, e.g.
1346 asm(".globl _main");
1350 if (symtab
!= NULL
&& sym
!= NULL
)
1352 return fixup_symbol_section (sym
, s
->objfile
);
1354 else if (MSYMBOL_TYPE (msymbol
) != mst_text
1355 && MSYMBOL_TYPE (msymbol
) != mst_file_text
1356 && !STREQ (name
, DEPRECATED_SYMBOL_NAME (msymbol
)))
1358 /* This is a mangled variable, look it up by its
1360 return lookup_symbol_aux (DEPRECATED_SYMBOL_NAME (msymbol
), mangled_name
,
1361 NULL
, namespace, is_a_field_of_this
,
1370 /* Look, in partial_symtab PST, for symbol NAME. Check the global
1371 symbols if GLOBAL, the static symbols if not */
1373 static struct partial_symbol
*
1374 lookup_partial_symbol (struct partial_symtab
*pst
, const char *name
, int global
,
1375 namespace_enum
namespace)
1377 struct partial_symbol
*temp
;
1378 struct partial_symbol
**start
, **psym
;
1379 struct partial_symbol
**top
, **real_top
, **bottom
, **center
;
1380 int length
= (global
? pst
->n_global_syms
: pst
->n_static_syms
);
1381 int do_linear_search
= 1;
1388 pst
->objfile
->global_psymbols
.list
+ pst
->globals_offset
:
1389 pst
->objfile
->static_psymbols
.list
+ pst
->statics_offset
);
1391 if (global
) /* This means we can use a binary search. */
1393 do_linear_search
= 0;
1395 /* Binary search. This search is guaranteed to end with center
1396 pointing at the earliest partial symbol whose name might be
1397 correct. At that point *all* partial symbols with an
1398 appropriate name will be checked against the correct
1402 top
= start
+ length
- 1;
1404 while (top
> bottom
)
1406 center
= bottom
+ (top
- bottom
) / 2;
1407 if (!(center
< top
))
1408 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1409 if (!do_linear_search
1410 && (SYMBOL_LANGUAGE (*center
) == language_java
))
1412 do_linear_search
= 1;
1414 if (strcmp_iw_ordered (SYMBOL_NATURAL_NAME (*center
), name
) >= 0)
1420 bottom
= center
+ 1;
1423 if (!(top
== bottom
))
1424 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1426 while (top
<= real_top
&& SYMBOL_MATCHES_NATURAL_NAME (*top
,name
))
1428 if (SYMBOL_NAMESPACE (*top
) == namespace)
1436 /* Can't use a binary search or else we found during the binary search that
1437 we should also do a linear search. */
1439 if (do_linear_search
)
1441 for (psym
= start
; psym
< start
+ length
; psym
++)
1443 if (namespace == SYMBOL_NAMESPACE (*psym
))
1445 if (SYMBOL_MATCHES_NATURAL_NAME (*psym
, name
))
1456 /* Look up a type named NAME in the struct_namespace. The type returned
1457 must not be opaque -- i.e., must have at least one field defined
1459 This code was modelled on lookup_symbol -- the parts not relevant to looking
1460 up types were just left out. In particular it's assumed here that types
1461 are available in struct_namespace and only at file-static or global blocks. */
1465 lookup_transparent_type (const char *name
)
1467 register struct symbol
*sym
;
1468 register struct symtab
*s
= NULL
;
1469 register struct partial_symtab
*ps
;
1470 struct blockvector
*bv
;
1471 register struct objfile
*objfile
;
1472 register struct block
*block
;
1474 /* Now search all the global symbols. Do the symtab's first, then
1475 check the psymtab's. If a psymtab indicates the existence
1476 of the desired name as a global, then do psymtab-to-symtab
1477 conversion on the fly and return the found symbol. */
1479 ALL_SYMTABS (objfile
, s
)
1481 bv
= BLOCKVECTOR (s
);
1482 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1483 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1484 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1486 return SYMBOL_TYPE (sym
);
1490 ALL_PSYMTABS (objfile
, ps
)
1492 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 1, STRUCT_NAMESPACE
))
1494 s
= PSYMTAB_TO_SYMTAB (ps
);
1495 bv
= BLOCKVECTOR (s
);
1496 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1497 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1500 /* This shouldn't be necessary, but as a last resort
1501 * try looking in the statics even though the psymtab
1502 * claimed the symbol was global. It's possible that
1503 * the psymtab gets it wrong in some cases.
1505 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1506 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1508 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
1509 %s may be an inlined function, or may be a template function\n\
1510 (if a template, try specifying an instantiation: %s<type>).",
1511 name
, ps
->filename
, name
, name
);
1513 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1514 return SYMBOL_TYPE (sym
);
1518 /* Now search the static file-level symbols.
1519 Not strictly correct, but more useful than an error.
1520 Do the symtab's first, then
1521 check the psymtab's. If a psymtab indicates the existence
1522 of the desired name as a file-level static, then do psymtab-to-symtab
1523 conversion on the fly and return the found symbol.
1526 ALL_SYMTABS (objfile
, s
)
1528 bv
= BLOCKVECTOR (s
);
1529 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1530 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1531 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1533 return SYMBOL_TYPE (sym
);
1537 ALL_PSYMTABS (objfile
, ps
)
1539 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 0, STRUCT_NAMESPACE
))
1541 s
= PSYMTAB_TO_SYMTAB (ps
);
1542 bv
= BLOCKVECTOR (s
);
1543 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1544 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1547 /* This shouldn't be necessary, but as a last resort
1548 * try looking in the globals even though the psymtab
1549 * claimed the symbol was static. It's possible that
1550 * the psymtab gets it wrong in some cases.
1552 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1553 sym
= lookup_block_symbol (block
, name
, NULL
, STRUCT_NAMESPACE
);
1555 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
1556 %s may be an inlined function, or may be a template function\n\
1557 (if a template, try specifying an instantiation: %s<type>).",
1558 name
, ps
->filename
, name
, name
);
1560 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1561 return SYMBOL_TYPE (sym
);
1564 return (struct type
*) 0;
1568 /* Find the psymtab containing main(). */
1569 /* FIXME: What about languages without main() or specially linked
1570 executables that have no main() ? */
1572 struct partial_symtab
*
1573 find_main_psymtab (void)
1575 register struct partial_symtab
*pst
;
1576 register struct objfile
*objfile
;
1578 ALL_PSYMTABS (objfile
, pst
)
1580 if (lookup_partial_symbol (pst
, main_name (), 1, VAR_NAMESPACE
))
1588 /* Search BLOCK for symbol NAME in NAMESPACE.
1590 Note that if NAME is the demangled form of a C++ symbol, we will fail
1591 to find a match during the binary search of the non-encoded names, but
1592 for now we don't worry about the slight inefficiency of looking for
1593 a match we'll never find, since it will go pretty quick. Once the
1594 binary search terminates, we drop through and do a straight linear
1595 search on the symbols. Each symbol which is marked as being a C++
1596 symbol (language_cplus set) has both the encoded and non-encoded names
1599 If MANGLED_NAME is non-NULL, verify that any symbol we find has this
1600 particular mangled name.
1604 lookup_block_symbol (register const struct block
*block
, const char *name
,
1605 const char *mangled_name
,
1606 const namespace_enum
namespace)
1608 register int bot
, top
, inc
;
1609 register struct symbol
*sym
;
1610 register struct symbol
*sym_found
= NULL
;
1611 register int do_linear_search
= 1;
1613 if (BLOCK_HASHTABLE (block
))
1615 unsigned int hash_index
;
1616 hash_index
= msymbol_hash_iw (name
);
1617 hash_index
= hash_index
% BLOCK_BUCKETS (block
);
1618 for (sym
= BLOCK_BUCKET (block
, hash_index
); sym
; sym
= sym
->hash_next
)
1620 if (SYMBOL_NAMESPACE (sym
) == namespace
1622 ? strcmp (DEPRECATED_SYMBOL_NAME (sym
), mangled_name
) == 0
1623 : SYMBOL_MATCHES_NATURAL_NAME (sym
, name
)))
1629 /* If the blocks's symbols were sorted, start with a binary search. */
1631 if (BLOCK_SHOULD_SORT (block
))
1633 /* Reset the linear search flag so if the binary search fails, we
1634 won't do the linear search once unless we find some reason to
1637 do_linear_search
= 0;
1638 top
= BLOCK_NSYMS (block
);
1641 /* Advance BOT to not far before the first symbol whose name is NAME. */
1645 inc
= (top
- bot
+ 1);
1646 /* No need to keep binary searching for the last few bits worth. */
1651 inc
= (inc
>> 1) + bot
;
1652 sym
= BLOCK_SYM (block
, inc
);
1653 if (!do_linear_search
&& (SYMBOL_LANGUAGE (sym
) == language_java
))
1655 do_linear_search
= 1;
1657 if (SYMBOL_NATURAL_NAME (sym
)[0] < name
[0])
1661 else if (SYMBOL_NATURAL_NAME (sym
)[0] > name
[0])
1665 else if (strcmp (SYMBOL_NATURAL_NAME (sym
), name
) < 0)
1675 /* Now scan forward until we run out of symbols, find one whose
1676 name is greater than NAME, or find one we want. If there is
1677 more than one symbol with the right name and namespace, we
1678 return the first one; I believe it is now impossible for us
1679 to encounter two symbols with the same name and namespace
1680 here, because blocks containing argument symbols are no
1681 longer sorted. The exception is for C++, where multiple functions
1682 (cloned constructors / destructors, in particular) can have
1683 the same demangled name. So if we have a particular
1684 mangled name to match, try to do so. */
1686 top
= BLOCK_NSYMS (block
);
1689 sym
= BLOCK_SYM (block
, bot
);
1690 if (SYMBOL_NAMESPACE (sym
) == namespace
1692 ? strcmp (DEPRECATED_SYMBOL_NAME (sym
), mangled_name
) == 0
1693 : SYMBOL_MATCHES_NATURAL_NAME (sym
, name
)))
1697 if (SYMBOL_PRINT_NAME (sym
)[0] > name
[0])
1705 /* Here if block isn't sorted, or we fail to find a match during the
1706 binary search above. If during the binary search above, we find a
1707 symbol which is a Java symbol, then we have re-enabled the linear
1708 search flag which was reset when starting the binary search.
1710 This loop is equivalent to the loop above, but hacked greatly for speed.
1712 Note that parameter symbols do not always show up last in the
1713 list; this loop makes sure to take anything else other than
1714 parameter symbols first; it only uses parameter symbols as a
1715 last resort. Note that this only takes up extra computation
1718 if (do_linear_search
)
1720 top
= BLOCK_NSYMS (block
);
1724 sym
= BLOCK_SYM (block
, bot
);
1725 if (SYMBOL_NAMESPACE (sym
) == namespace
1727 ? strcmp (DEPRECATED_SYMBOL_NAME (sym
), mangled_name
) == 0
1728 : SYMBOL_MATCHES_NATURAL_NAME (sym
, name
)))
1730 /* If SYM has aliases, then use any alias that is active
1731 at the current PC. If no alias is active at the current
1732 PC, then use the main symbol.
1734 ?!? Is checking the current pc correct? Is this routine
1735 ever called to look up a symbol from another context?
1737 FIXME: No, it's not correct. If someone sets a
1738 conditional breakpoint at an address, then the
1739 breakpoint's `struct expression' should refer to the
1740 `struct symbol' appropriate for the breakpoint's
1741 address, which may not be the PC.
1743 Even if it were never called from another context,
1744 it's totally bizarre for lookup_symbol's behavior to
1745 depend on the value of the inferior's current PC. We
1746 should pass in the appropriate PC as well as the
1747 block. The interface to lookup_symbol should change
1748 to require the caller to provide a PC. */
1750 if (SYMBOL_ALIASES (sym
))
1751 sym
= find_active_alias (sym
, read_pc ());
1754 if (SYMBOL_CLASS (sym
) != LOC_ARG
&&
1755 SYMBOL_CLASS (sym
) != LOC_LOCAL_ARG
&&
1756 SYMBOL_CLASS (sym
) != LOC_REF_ARG
&&
1757 SYMBOL_CLASS (sym
) != LOC_REGPARM
&&
1758 SYMBOL_CLASS (sym
) != LOC_REGPARM_ADDR
&&
1759 SYMBOL_CLASS (sym
) != LOC_BASEREG_ARG
&&
1760 SYMBOL_CLASS (sym
) != LOC_COMPUTED_ARG
)
1768 return (sym_found
); /* Will be NULL if not found. */
1771 /* Given a main symbol SYM and ADDR, search through the alias
1772 list to determine if an alias is active at ADDR and return
1775 If no alias is active, then return SYM. */
1777 static struct symbol
*
1778 find_active_alias (struct symbol
*sym
, CORE_ADDR addr
)
1780 struct range_list
*r
;
1781 struct alias_list
*aliases
;
1783 /* If we have aliases, check them first. */
1784 aliases
= SYMBOL_ALIASES (sym
);
1788 if (!SYMBOL_RANGES (aliases
->sym
))
1789 return aliases
->sym
;
1790 for (r
= SYMBOL_RANGES (aliases
->sym
); r
; r
= r
->next
)
1792 if (r
->start
<= addr
&& r
->end
> addr
)
1793 return aliases
->sym
;
1795 aliases
= aliases
->next
;
1798 /* Nothing found, return the main symbol. */
1803 /* Find the symtab associated with PC and SECTION. Look through the
1804 psymtabs and read in another symtab if necessary. */
1807 find_pc_sect_symtab (CORE_ADDR pc
, asection
*section
)
1809 register struct block
*b
;
1810 struct blockvector
*bv
;
1811 register struct symtab
*s
= NULL
;
1812 register struct symtab
*best_s
= NULL
;
1813 register struct partial_symtab
*ps
;
1814 register struct objfile
*objfile
;
1815 CORE_ADDR distance
= 0;
1816 struct minimal_symbol
*msymbol
;
1818 /* If we know that this is not a text address, return failure. This is
1819 necessary because we loop based on the block's high and low code
1820 addresses, which do not include the data ranges, and because
1821 we call find_pc_sect_psymtab which has a similar restriction based
1822 on the partial_symtab's texthigh and textlow. */
1823 msymbol
= lookup_minimal_symbol_by_pc_section (pc
, section
);
1825 && (msymbol
->type
== mst_data
1826 || msymbol
->type
== mst_bss
1827 || msymbol
->type
== mst_abs
1828 || msymbol
->type
== mst_file_data
1829 || msymbol
->type
== mst_file_bss
))
1832 /* Search all symtabs for the one whose file contains our address, and which
1833 is the smallest of all the ones containing the address. This is designed
1834 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1835 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1836 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1838 This happens for native ecoff format, where code from included files
1839 gets its own symtab. The symtab for the included file should have
1840 been read in already via the dependency mechanism.
1841 It might be swifter to create several symtabs with the same name
1842 like xcoff does (I'm not sure).
1844 It also happens for objfiles that have their functions reordered.
1845 For these, the symtab we are looking for is not necessarily read in. */
1847 ALL_SYMTABS (objfile
, s
)
1849 bv
= BLOCKVECTOR (s
);
1850 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1852 if (BLOCK_START (b
) <= pc
1853 && BLOCK_END (b
) > pc
1855 || BLOCK_END (b
) - BLOCK_START (b
) < distance
))
1857 /* For an objfile that has its functions reordered,
1858 find_pc_psymtab will find the proper partial symbol table
1859 and we simply return its corresponding symtab. */
1860 /* In order to better support objfiles that contain both
1861 stabs and coff debugging info, we continue on if a psymtab
1863 if ((objfile
->flags
& OBJF_REORDERED
) && objfile
->psymtabs
)
1865 ps
= find_pc_sect_psymtab (pc
, section
);
1867 return PSYMTAB_TO_SYMTAB (ps
);
1872 struct symbol
*sym
= NULL
;
1874 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
1876 fixup_symbol_section (sym
, objfile
);
1877 if (section
== SYMBOL_BFD_SECTION (sym
))
1880 if ((i
>= BLOCK_BUCKETS (b
)) && (sym
== NULL
))
1881 continue; /* no symbol in this symtab matches section */
1883 distance
= BLOCK_END (b
) - BLOCK_START (b
);
1892 ps
= find_pc_sect_psymtab (pc
, section
);
1896 /* Might want to error() here (in case symtab is corrupt and
1897 will cause a core dump), but maybe we can successfully
1898 continue, so let's not. */
1900 (Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n",
1902 s
= PSYMTAB_TO_SYMTAB (ps
);
1907 /* Find the symtab associated with PC. Look through the psymtabs and
1908 read in another symtab if necessary. Backward compatibility, no section */
1911 find_pc_symtab (CORE_ADDR pc
)
1913 return find_pc_sect_symtab (pc
, find_pc_mapped_section (pc
));
1917 /* Find the source file and line number for a given PC value and SECTION.
1918 Return a structure containing a symtab pointer, a line number,
1919 and a pc range for the entire source line.
1920 The value's .pc field is NOT the specified pc.
1921 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1922 use the line that ends there. Otherwise, in that case, the line
1923 that begins there is used. */
1925 /* The big complication here is that a line may start in one file, and end just
1926 before the start of another file. This usually occurs when you #include
1927 code in the middle of a subroutine. To properly find the end of a line's PC
1928 range, we must search all symtabs associated with this compilation unit, and
1929 find the one whose first PC is closer than that of the next line in this
1932 /* If it's worth the effort, we could be using a binary search. */
1934 struct symtab_and_line
1935 find_pc_sect_line (CORE_ADDR pc
, struct sec
*section
, int notcurrent
)
1938 register struct linetable
*l
;
1941 register struct linetable_entry
*item
;
1942 struct symtab_and_line val
;
1943 struct blockvector
*bv
;
1944 struct minimal_symbol
*msymbol
;
1945 struct minimal_symbol
*mfunsym
;
1947 /* Info on best line seen so far, and where it starts, and its file. */
1949 struct linetable_entry
*best
= NULL
;
1950 CORE_ADDR best_end
= 0;
1951 struct symtab
*best_symtab
= 0;
1953 /* Store here the first line number
1954 of a file which contains the line at the smallest pc after PC.
1955 If we don't find a line whose range contains PC,
1956 we will use a line one less than this,
1957 with a range from the start of that file to the first line's pc. */
1958 struct linetable_entry
*alt
= NULL
;
1959 struct symtab
*alt_symtab
= 0;
1961 /* Info on best line seen in this file. */
1963 struct linetable_entry
*prev
;
1965 /* If this pc is not from the current frame,
1966 it is the address of the end of a call instruction.
1967 Quite likely that is the start of the following statement.
1968 But what we want is the statement containing the instruction.
1969 Fudge the pc to make sure we get that. */
1971 init_sal (&val
); /* initialize to zeroes */
1973 /* It's tempting to assume that, if we can't find debugging info for
1974 any function enclosing PC, that we shouldn't search for line
1975 number info, either. However, GAS can emit line number info for
1976 assembly files --- very helpful when debugging hand-written
1977 assembly code. In such a case, we'd have no debug info for the
1978 function, but we would have line info. */
1983 /* elz: added this because this function returned the wrong
1984 information if the pc belongs to a stub (import/export)
1985 to call a shlib function. This stub would be anywhere between
1986 two functions in the target, and the line info was erroneously
1987 taken to be the one of the line before the pc.
1989 /* RT: Further explanation:
1991 * We have stubs (trampolines) inserted between procedures.
1993 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1994 * exists in the main image.
1996 * In the minimal symbol table, we have a bunch of symbols
1997 * sorted by start address. The stubs are marked as "trampoline",
1998 * the others appear as text. E.g.:
2000 * Minimal symbol table for main image
2001 * main: code for main (text symbol)
2002 * shr1: stub (trampoline symbol)
2003 * foo: code for foo (text symbol)
2005 * Minimal symbol table for "shr1" image:
2007 * shr1: code for shr1 (text symbol)
2010 * So the code below is trying to detect if we are in the stub
2011 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
2012 * and if found, do the symbolization from the real-code address
2013 * rather than the stub address.
2015 * Assumptions being made about the minimal symbol table:
2016 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
2017 * if we're really in the trampoline. If we're beyond it (say
2018 * we're in "foo" in the above example), it'll have a closer
2019 * symbol (the "foo" text symbol for example) and will not
2020 * return the trampoline.
2021 * 2. lookup_minimal_symbol_text() will find a real text symbol
2022 * corresponding to the trampoline, and whose address will
2023 * be different than the trampoline address. I put in a sanity
2024 * check for the address being the same, to avoid an
2025 * infinite recursion.
2027 msymbol
= lookup_minimal_symbol_by_pc (pc
);
2028 if (msymbol
!= NULL
)
2029 if (MSYMBOL_TYPE (msymbol
) == mst_solib_trampoline
)
2031 mfunsym
= lookup_minimal_symbol_text (DEPRECATED_SYMBOL_NAME (msymbol
), NULL
, NULL
);
2032 if (mfunsym
== NULL
)
2033 /* I eliminated this warning since it is coming out
2034 * in the following situation:
2035 * gdb shmain // test program with shared libraries
2036 * (gdb) break shr1 // function in shared lib
2037 * Warning: In stub for ...
2038 * In the above situation, the shared lib is not loaded yet,
2039 * so of course we can't find the real func/line info,
2040 * but the "break" still works, and the warning is annoying.
2041 * So I commented out the warning. RT */
2042 /* warning ("In stub for %s; unable to find real function/line info", DEPRECATED_SYMBOL_NAME (msymbol)) */ ;
2044 else if (SYMBOL_VALUE (mfunsym
) == SYMBOL_VALUE (msymbol
))
2045 /* Avoid infinite recursion */
2046 /* See above comment about why warning is commented out */
2047 /* warning ("In stub for %s; unable to find real function/line info", DEPRECATED_SYMBOL_NAME (msymbol)) */ ;
2050 return find_pc_line (SYMBOL_VALUE (mfunsym
), 0);
2054 s
= find_pc_sect_symtab (pc
, section
);
2057 /* if no symbol information, return previous pc */
2064 bv
= BLOCKVECTOR (s
);
2066 /* Look at all the symtabs that share this blockvector.
2067 They all have the same apriori range, that we found was right;
2068 but they have different line tables. */
2070 for (; s
&& BLOCKVECTOR (s
) == bv
; s
= s
->next
)
2072 /* Find the best line in this symtab. */
2079 /* I think len can be zero if the symtab lacks line numbers
2080 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
2081 I'm not sure which, and maybe it depends on the symbol
2087 item
= l
->item
; /* Get first line info */
2089 /* Is this file's first line closer than the first lines of other files?
2090 If so, record this file, and its first line, as best alternate. */
2091 if (item
->pc
> pc
&& (!alt
|| item
->pc
< alt
->pc
))
2097 for (i
= 0; i
< len
; i
++, item
++)
2099 /* Leave prev pointing to the linetable entry for the last line
2100 that started at or before PC. */
2107 /* At this point, prev points at the line whose start addr is <= pc, and
2108 item points at the next line. If we ran off the end of the linetable
2109 (pc >= start of the last line), then prev == item. If pc < start of
2110 the first line, prev will not be set. */
2112 /* Is this file's best line closer than the best in the other files?
2113 If so, record this file, and its best line, as best so far. Don't
2114 save prev if it represents the end of a function (i.e. line number
2115 0) instead of a real line. */
2117 if (prev
&& prev
->line
&& (!best
|| prev
->pc
> best
->pc
))
2122 /* Discard BEST_END if it's before the PC of the current BEST. */
2123 if (best_end
<= best
->pc
)
2127 /* If another line (denoted by ITEM) is in the linetable and its
2128 PC is after BEST's PC, but before the current BEST_END, then
2129 use ITEM's PC as the new best_end. */
2130 if (best
&& i
< len
&& item
->pc
> best
->pc
2131 && (best_end
== 0 || best_end
> item
->pc
))
2132 best_end
= item
->pc
;
2138 { /* If we didn't find any line # info, just
2144 val
.symtab
= alt_symtab
;
2145 val
.line
= alt
->line
- 1;
2147 /* Don't return line 0, that means that we didn't find the line. */
2151 val
.pc
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
2155 else if (best
->line
== 0)
2157 /* If our best fit is in a range of PC's for which no line
2158 number info is available (line number is zero) then we didn't
2159 find any valid line information. */
2164 val
.symtab
= best_symtab
;
2165 val
.line
= best
->line
;
2167 if (best_end
&& (!alt
|| best_end
< alt
->pc
))
2172 val
.end
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
2174 val
.section
= section
;
2178 /* Backward compatibility (no section) */
2180 struct symtab_and_line
2181 find_pc_line (CORE_ADDR pc
, int notcurrent
)
2185 section
= find_pc_overlay (pc
);
2186 if (pc_in_unmapped_range (pc
, section
))
2187 pc
= overlay_mapped_address (pc
, section
);
2188 return find_pc_sect_line (pc
, section
, notcurrent
);
2191 /* Find line number LINE in any symtab whose name is the same as
2194 If found, return the symtab that contains the linetable in which it was
2195 found, set *INDEX to the index in the linetable of the best entry
2196 found, and set *EXACT_MATCH nonzero if the value returned is an
2199 If not found, return NULL. */
2202 find_line_symtab (struct symtab
*symtab
, int line
, int *index
, int *exact_match
)
2206 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
2210 struct linetable
*best_linetable
;
2211 struct symtab
*best_symtab
;
2213 /* First try looking it up in the given symtab. */
2214 best_linetable
= LINETABLE (symtab
);
2215 best_symtab
= symtab
;
2216 best_index
= find_line_common (best_linetable
, line
, &exact
);
2217 if (best_index
< 0 || !exact
)
2219 /* Didn't find an exact match. So we better keep looking for
2220 another symtab with the same name. In the case of xcoff,
2221 multiple csects for one source file (produced by IBM's FORTRAN
2222 compiler) produce multiple symtabs (this is unavoidable
2223 assuming csects can be at arbitrary places in memory and that
2224 the GLOBAL_BLOCK of a symtab has a begin and end address). */
2226 /* BEST is the smallest linenumber > LINE so far seen,
2227 or 0 if none has been seen so far.
2228 BEST_INDEX and BEST_LINETABLE identify the item for it. */
2231 struct objfile
*objfile
;
2234 if (best_index
>= 0)
2235 best
= best_linetable
->item
[best_index
].line
;
2239 ALL_SYMTABS (objfile
, s
)
2241 struct linetable
*l
;
2244 if (!STREQ (symtab
->filename
, s
->filename
))
2247 ind
= find_line_common (l
, line
, &exact
);
2257 if (best
== 0 || l
->item
[ind
].line
< best
)
2259 best
= l
->item
[ind
].line
;
2272 *index
= best_index
;
2274 *exact_match
= exact
;
2279 /* Set the PC value for a given source file and line number and return true.
2280 Returns zero for invalid line number (and sets the PC to 0).
2281 The source file is specified with a struct symtab. */
2284 find_line_pc (struct symtab
*symtab
, int line
, CORE_ADDR
*pc
)
2286 struct linetable
*l
;
2293 symtab
= find_line_symtab (symtab
, line
, &ind
, NULL
);
2296 l
= LINETABLE (symtab
);
2297 *pc
= l
->item
[ind
].pc
;
2304 /* Find the range of pc values in a line.
2305 Store the starting pc of the line into *STARTPTR
2306 and the ending pc (start of next line) into *ENDPTR.
2307 Returns 1 to indicate success.
2308 Returns 0 if could not find the specified line. */
2311 find_line_pc_range (struct symtab_and_line sal
, CORE_ADDR
*startptr
,
2314 CORE_ADDR startaddr
;
2315 struct symtab_and_line found_sal
;
2318 if (startaddr
== 0 && !find_line_pc (sal
.symtab
, sal
.line
, &startaddr
))
2321 /* This whole function is based on address. For example, if line 10 has
2322 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
2323 "info line *0x123" should say the line goes from 0x100 to 0x200
2324 and "info line *0x355" should say the line goes from 0x300 to 0x400.
2325 This also insures that we never give a range like "starts at 0x134
2326 and ends at 0x12c". */
2328 found_sal
= find_pc_sect_line (startaddr
, sal
.section
, 0);
2329 if (found_sal
.line
!= sal
.line
)
2331 /* The specified line (sal) has zero bytes. */
2332 *startptr
= found_sal
.pc
;
2333 *endptr
= found_sal
.pc
;
2337 *startptr
= found_sal
.pc
;
2338 *endptr
= found_sal
.end
;
2343 /* Given a line table and a line number, return the index into the line
2344 table for the pc of the nearest line whose number is >= the specified one.
2345 Return -1 if none is found. The value is >= 0 if it is an index.
2347 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
2350 find_line_common (register struct linetable
*l
, register int lineno
,
2356 /* BEST is the smallest linenumber > LINENO so far seen,
2357 or 0 if none has been seen so far.
2358 BEST_INDEX identifies the item for it. */
2360 int best_index
= -1;
2369 for (i
= 0; i
< len
; i
++)
2371 register struct linetable_entry
*item
= &(l
->item
[i
]);
2373 if (item
->line
== lineno
)
2375 /* Return the first (lowest address) entry which matches. */
2380 if (item
->line
> lineno
&& (best
== 0 || item
->line
< best
))
2387 /* If we got here, we didn't get an exact match. */
2394 find_pc_line_pc_range (CORE_ADDR pc
, CORE_ADDR
*startptr
, CORE_ADDR
*endptr
)
2396 struct symtab_and_line sal
;
2397 sal
= find_pc_line (pc
, 0);
2400 return sal
.symtab
!= 0;
2403 /* Given a function symbol SYM, find the symtab and line for the start
2405 If the argument FUNFIRSTLINE is nonzero, we want the first line
2406 of real code inside the function. */
2408 struct symtab_and_line
2409 find_function_start_sal (struct symbol
*sym
, int funfirstline
)
2412 struct symtab_and_line sal
;
2414 pc
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
2415 fixup_symbol_section (sym
, NULL
);
2417 { /* skip "first line" of function (which is actually its prologue) */
2418 asection
*section
= SYMBOL_BFD_SECTION (sym
);
2419 /* If function is in an unmapped overlay, use its unmapped LMA
2420 address, so that SKIP_PROLOGUE has something unique to work on */
2421 if (section_is_overlay (section
) &&
2422 !section_is_mapped (section
))
2423 pc
= overlay_unmapped_address (pc
, section
);
2425 pc
+= FUNCTION_START_OFFSET
;
2426 pc
= SKIP_PROLOGUE (pc
);
2428 /* For overlays, map pc back into its mapped VMA range */
2429 pc
= overlay_mapped_address (pc
, section
);
2431 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2433 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2434 /* Convex: no need to suppress code on first line, if any */
2437 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2438 line is still part of the same function. */
2440 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym
)) <= sal
.end
2441 && sal
.end
< BLOCK_END (SYMBOL_BLOCK_VALUE (sym
)))
2443 /* First pc of next line */
2445 /* Recalculate the line number (might not be N+1). */
2446 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2454 /* If P is of the form "operator[ \t]+..." where `...' is
2455 some legitimate operator text, return a pointer to the
2456 beginning of the substring of the operator text.
2457 Otherwise, return "". */
2459 operator_chars (char *p
, char **end
)
2462 if (strncmp (p
, "operator", 8))
2466 /* Don't get faked out by `operator' being part of a longer
2468 if (isalpha (*p
) || *p
== '_' || *p
== '$' || *p
== '\0')
2471 /* Allow some whitespace between `operator' and the operator symbol. */
2472 while (*p
== ' ' || *p
== '\t')
2475 /* Recognize 'operator TYPENAME'. */
2477 if (isalpha (*p
) || *p
== '_' || *p
== '$')
2479 register char *q
= p
+ 1;
2480 while (isalnum (*q
) || *q
== '_' || *q
== '$')
2489 case '\\': /* regexp quoting */
2492 if (p
[2] == '=') /* 'operator\*=' */
2494 else /* 'operator\*' */
2498 else if (p
[1] == '[')
2501 error ("mismatched quoting on brackets, try 'operator\\[\\]'");
2502 else if (p
[2] == '\\' && p
[3] == ']')
2504 *end
= p
+ 4; /* 'operator\[\]' */
2508 error ("nothing is allowed between '[' and ']'");
2512 /* Gratuitous qoute: skip it and move on. */
2534 if (p
[0] == '-' && p
[1] == '>')
2536 /* Struct pointer member operator 'operator->'. */
2539 *end
= p
+ 3; /* 'operator->*' */
2542 else if (p
[2] == '\\')
2544 *end
= p
+ 4; /* Hopefully 'operator->\*' */
2549 *end
= p
+ 2; /* 'operator->' */
2553 if (p
[1] == '=' || p
[1] == p
[0])
2564 error ("`operator ()' must be specified without whitespace in `()'");
2569 error ("`operator ?:' must be specified without whitespace in `?:'");
2574 error ("`operator []' must be specified without whitespace in `[]'");
2578 error ("`operator %s' not supported", p
);
2587 /* If FILE is not already in the table of files, return zero;
2588 otherwise return non-zero. Optionally add FILE to the table if ADD
2589 is non-zero. If *FIRST is non-zero, forget the old table
2592 filename_seen (const char *file
, int add
, int *first
)
2594 /* Table of files seen so far. */
2595 static const char **tab
= NULL
;
2596 /* Allocated size of tab in elements.
2597 Start with one 256-byte block (when using GNU malloc.c).
2598 24 is the malloc overhead when range checking is in effect. */
2599 static int tab_alloc_size
= (256 - 24) / sizeof (char *);
2600 /* Current size of tab in elements. */
2601 static int tab_cur_size
;
2607 tab
= (const char **) xmalloc (tab_alloc_size
* sizeof (*tab
));
2611 /* Is FILE in tab? */
2612 for (p
= tab
; p
< tab
+ tab_cur_size
; p
++)
2613 if (strcmp (*p
, file
) == 0)
2616 /* No; maybe add it to tab. */
2619 if (tab_cur_size
== tab_alloc_size
)
2621 tab_alloc_size
*= 2;
2622 tab
= (const char **) xrealloc ((char *) tab
,
2623 tab_alloc_size
* sizeof (*tab
));
2625 tab
[tab_cur_size
++] = file
;
2631 /* Slave routine for sources_info. Force line breaks at ,'s.
2632 NAME is the name to print and *FIRST is nonzero if this is the first
2633 name printed. Set *FIRST to zero. */
2635 output_source_filename (char *name
, int *first
)
2637 /* Since a single source file can result in several partial symbol
2638 tables, we need to avoid printing it more than once. Note: if
2639 some of the psymtabs are read in and some are not, it gets
2640 printed both under "Source files for which symbols have been
2641 read" and "Source files for which symbols will be read in on
2642 demand". I consider this a reasonable way to deal with the
2643 situation. I'm not sure whether this can also happen for
2644 symtabs; it doesn't hurt to check. */
2646 /* Was NAME already seen? */
2647 if (filename_seen (name
, 1, first
))
2649 /* Yes; don't print it again. */
2652 /* No; print it and reset *FIRST. */
2659 printf_filtered (", ");
2663 fputs_filtered (name
, gdb_stdout
);
2667 sources_info (char *ignore
, int from_tty
)
2669 register struct symtab
*s
;
2670 register struct partial_symtab
*ps
;
2671 register struct objfile
*objfile
;
2674 if (!have_full_symbols () && !have_partial_symbols ())
2676 error ("No symbol table is loaded. Use the \"file\" command.");
2679 printf_filtered ("Source files for which symbols have been read in:\n\n");
2682 ALL_SYMTABS (objfile
, s
)
2684 output_source_filename (s
->filename
, &first
);
2686 printf_filtered ("\n\n");
2688 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
2691 ALL_PSYMTABS (objfile
, ps
)
2695 output_source_filename (ps
->filename
, &first
);
2698 printf_filtered ("\n");
2702 file_matches (char *file
, char *files
[], int nfiles
)
2706 if (file
!= NULL
&& nfiles
!= 0)
2708 for (i
= 0; i
< nfiles
; i
++)
2710 if (strcmp (files
[i
], lbasename (file
)) == 0)
2714 else if (nfiles
== 0)
2719 /* Free any memory associated with a search. */
2721 free_search_symbols (struct symbol_search
*symbols
)
2723 struct symbol_search
*p
;
2724 struct symbol_search
*next
;
2726 for (p
= symbols
; p
!= NULL
; p
= next
)
2734 do_free_search_symbols_cleanup (void *symbols
)
2736 free_search_symbols (symbols
);
2740 make_cleanup_free_search_symbols (struct symbol_search
*symbols
)
2742 return make_cleanup (do_free_search_symbols_cleanup
, symbols
);
2745 /* Helper function for sort_search_symbols and qsort. Can only
2746 sort symbols, not minimal symbols. */
2748 compare_search_syms (const void *sa
, const void *sb
)
2750 struct symbol_search
**sym_a
= (struct symbol_search
**) sa
;
2751 struct symbol_search
**sym_b
= (struct symbol_search
**) sb
;
2753 return strcmp (SYMBOL_PRINT_NAME ((*sym_a
)->symbol
),
2754 SYMBOL_PRINT_NAME ((*sym_b
)->symbol
));
2757 /* Sort the ``nfound'' symbols in the list after prevtail. Leave
2758 prevtail where it is, but update its next pointer to point to
2759 the first of the sorted symbols. */
2760 static struct symbol_search
*
2761 sort_search_symbols (struct symbol_search
*prevtail
, int nfound
)
2763 struct symbol_search
**symbols
, *symp
, *old_next
;
2766 symbols
= (struct symbol_search
**) xmalloc (sizeof (struct symbol_search
*)
2768 symp
= prevtail
->next
;
2769 for (i
= 0; i
< nfound
; i
++)
2774 /* Generally NULL. */
2777 qsort (symbols
, nfound
, sizeof (struct symbol_search
*),
2778 compare_search_syms
);
2781 for (i
= 0; i
< nfound
; i
++)
2783 symp
->next
= symbols
[i
];
2786 symp
->next
= old_next
;
2792 /* Search the symbol table for matches to the regular expression REGEXP,
2793 returning the results in *MATCHES.
2795 Only symbols of KIND are searched:
2796 FUNCTIONS_NAMESPACE - search all functions
2797 TYPES_NAMESPACE - search all type names
2798 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
2799 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
2800 and constants (enums)
2802 free_search_symbols should be called when *MATCHES is no longer needed.
2804 The results are sorted locally; each symtab's global and static blocks are
2805 separately alphabetized.
2808 search_symbols (char *regexp
, namespace_enum kind
, int nfiles
, char *files
[],
2809 struct symbol_search
**matches
)
2811 register struct symtab
*s
;
2812 register struct partial_symtab
*ps
;
2813 register struct blockvector
*bv
;
2814 struct blockvector
*prev_bv
= 0;
2815 register struct block
*b
;
2818 register struct symbol
*sym
;
2819 struct partial_symbol
**psym
;
2820 struct objfile
*objfile
;
2821 struct minimal_symbol
*msymbol
;
2824 static enum minimal_symbol_type types
[]
2826 {mst_data
, mst_text
, mst_abs
, mst_unknown
};
2827 static enum minimal_symbol_type types2
[]
2829 {mst_bss
, mst_file_text
, mst_abs
, mst_unknown
};
2830 static enum minimal_symbol_type types3
[]
2832 {mst_file_data
, mst_solib_trampoline
, mst_abs
, mst_unknown
};
2833 static enum minimal_symbol_type types4
[]
2835 {mst_file_bss
, mst_text
, mst_abs
, mst_unknown
};
2836 enum minimal_symbol_type ourtype
;
2837 enum minimal_symbol_type ourtype2
;
2838 enum minimal_symbol_type ourtype3
;
2839 enum minimal_symbol_type ourtype4
;
2840 struct symbol_search
*sr
;
2841 struct symbol_search
*psr
;
2842 struct symbol_search
*tail
;
2843 struct cleanup
*old_chain
= NULL
;
2845 if (kind
< VARIABLES_NAMESPACE
)
2846 error ("must search on specific namespace");
2848 ourtype
= types
[(int) (kind
- VARIABLES_NAMESPACE
)];
2849 ourtype2
= types2
[(int) (kind
- VARIABLES_NAMESPACE
)];
2850 ourtype3
= types3
[(int) (kind
- VARIABLES_NAMESPACE
)];
2851 ourtype4
= types4
[(int) (kind
- VARIABLES_NAMESPACE
)];
2853 sr
= *matches
= NULL
;
2858 /* Make sure spacing is right for C++ operators.
2859 This is just a courtesy to make the matching less sensitive
2860 to how many spaces the user leaves between 'operator'
2861 and <TYPENAME> or <OPERATOR>. */
2863 char *opname
= operator_chars (regexp
, &opend
);
2866 int fix
= -1; /* -1 means ok; otherwise number of spaces needed. */
2867 if (isalpha (*opname
) || *opname
== '_' || *opname
== '$')
2869 /* There should 1 space between 'operator' and 'TYPENAME'. */
2870 if (opname
[-1] != ' ' || opname
[-2] == ' ')
2875 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
2876 if (opname
[-1] == ' ')
2879 /* If wrong number of spaces, fix it. */
2882 char *tmp
= (char *) alloca (8 + fix
+ strlen (opname
) + 1);
2883 sprintf (tmp
, "operator%.*s%s", fix
, " ", opname
);
2888 if (0 != (val
= re_comp (regexp
)))
2889 error ("Invalid regexp (%s): %s", val
, regexp
);
2892 /* Search through the partial symtabs *first* for all symbols
2893 matching the regexp. That way we don't have to reproduce all of
2894 the machinery below. */
2896 ALL_PSYMTABS (objfile
, ps
)
2898 struct partial_symbol
**bound
, **gbound
, **sbound
;
2904 gbound
= objfile
->global_psymbols
.list
+ ps
->globals_offset
+ ps
->n_global_syms
;
2905 sbound
= objfile
->static_psymbols
.list
+ ps
->statics_offset
+ ps
->n_static_syms
;
2908 /* Go through all of the symbols stored in a partial
2909 symtab in one loop. */
2910 psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
2915 if (bound
== gbound
&& ps
->n_static_syms
!= 0)
2917 psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
2928 /* If it would match (logic taken from loop below)
2929 load the file and go on to the next one */
2930 if (file_matches (ps
->filename
, files
, nfiles
)
2932 || re_exec (SYMBOL_NATURAL_NAME (*psym
)) != 0)
2933 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (*psym
) != LOC_TYPEDEF
2934 && SYMBOL_CLASS (*psym
) != LOC_BLOCK
)
2935 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
)
2936 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_TYPEDEF
)
2937 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
))))
2939 PSYMTAB_TO_SYMTAB (ps
);
2947 /* Here, we search through the minimal symbol tables for functions
2948 and variables that match, and force their symbols to be read.
2949 This is in particular necessary for demangled variable names,
2950 which are no longer put into the partial symbol tables.
2951 The symbol will then be found during the scan of symtabs below.
2953 For functions, find_pc_symtab should succeed if we have debug info
2954 for the function, for variables we have to call lookup_symbol
2955 to determine if the variable has debug info.
2956 If the lookup fails, set found_misc so that we will rescan to print
2957 any matching symbols without debug info.
2960 if (nfiles
== 0 && (kind
== VARIABLES_NAMESPACE
|| kind
== FUNCTIONS_NAMESPACE
))
2962 ALL_MSYMBOLS (objfile
, msymbol
)
2964 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
2965 MSYMBOL_TYPE (msymbol
) == ourtype2
||
2966 MSYMBOL_TYPE (msymbol
) == ourtype3
||
2967 MSYMBOL_TYPE (msymbol
) == ourtype4
)
2970 || re_exec (SYMBOL_NATURAL_NAME (msymbol
)) != 0)
2972 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
)))
2974 /* FIXME: carlton/2003-02-04: Given that the
2975 semantics of lookup_symbol keeps on changing
2976 slightly, it would be a nice idea if we had a
2977 function lookup_symbol_minsym that found the
2978 symbol associated to a given minimal symbol (if
2980 if (kind
== FUNCTIONS_NAMESPACE
2981 || lookup_symbol (DEPRECATED_SYMBOL_NAME (msymbol
),
2982 (struct block
*) NULL
,
2984 0, (struct symtab
**) NULL
) == NULL
)
2992 ALL_SYMTABS (objfile
, s
)
2994 bv
= BLOCKVECTOR (s
);
2995 /* Often many files share a blockvector.
2996 Scan each blockvector only once so that
2997 we don't get every symbol many times.
2998 It happens that the first symtab in the list
2999 for any given blockvector is the main file. */
3001 for (i
= GLOBAL_BLOCK
; i
<= STATIC_BLOCK
; i
++)
3003 struct symbol_search
*prevtail
= tail
;
3005 b
= BLOCKVECTOR_BLOCK (bv
, i
);
3006 ALL_BLOCK_SYMBOLS (b
, j
, sym
)
3009 if (file_matches (s
->filename
, files
, nfiles
)
3011 || re_exec (SYMBOL_NATURAL_NAME (sym
)) != 0)
3012 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (sym
) != LOC_TYPEDEF
3013 && SYMBOL_CLASS (sym
) != LOC_BLOCK
3014 && SYMBOL_CLASS (sym
) != LOC_CONST
)
3015 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
)
3016 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
3017 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
))))
3020 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
3024 psr
->msymbol
= NULL
;
3036 if (prevtail
== NULL
)
3038 struct symbol_search dummy
;
3041 tail
= sort_search_symbols (&dummy
, nfound
);
3044 old_chain
= make_cleanup_free_search_symbols (sr
);
3047 tail
= sort_search_symbols (prevtail
, nfound
);
3053 /* If there are no eyes, avoid all contact. I mean, if there are
3054 no debug symbols, then print directly from the msymbol_vector. */
3056 if (found_misc
|| kind
!= FUNCTIONS_NAMESPACE
)
3058 ALL_MSYMBOLS (objfile
, msymbol
)
3060 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
3061 MSYMBOL_TYPE (msymbol
) == ourtype2
||
3062 MSYMBOL_TYPE (msymbol
) == ourtype3
||
3063 MSYMBOL_TYPE (msymbol
) == ourtype4
)
3066 || re_exec (SYMBOL_NATURAL_NAME (msymbol
)) != 0)
3068 /* Functions: Look up by address. */
3069 if (kind
!= FUNCTIONS_NAMESPACE
||
3070 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
))))
3072 /* Variables/Absolutes: Look up by name */
3073 if (lookup_symbol (DEPRECATED_SYMBOL_NAME (msymbol
),
3074 (struct block
*) NULL
, VAR_NAMESPACE
,
3075 0, (struct symtab
**) NULL
) == NULL
)
3078 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
3080 psr
->msymbol
= msymbol
;
3087 old_chain
= make_cleanup_free_search_symbols (sr
);
3101 discard_cleanups (old_chain
);
3104 /* Helper function for symtab_symbol_info, this function uses
3105 the data returned from search_symbols() to print information
3106 regarding the match to gdb_stdout.
3109 print_symbol_info (namespace_enum kind
, struct symtab
*s
, struct symbol
*sym
,
3110 int block
, char *last
)
3112 if (last
== NULL
|| strcmp (last
, s
->filename
) != 0)
3114 fputs_filtered ("\nFile ", gdb_stdout
);
3115 fputs_filtered (s
->filename
, gdb_stdout
);
3116 fputs_filtered (":\n", gdb_stdout
);
3119 if (kind
!= TYPES_NAMESPACE
&& block
== STATIC_BLOCK
)
3120 printf_filtered ("static ");
3122 /* Typedef that is not a C++ class */
3123 if (kind
== TYPES_NAMESPACE
3124 && SYMBOL_NAMESPACE (sym
) != STRUCT_NAMESPACE
)
3125 typedef_print (SYMBOL_TYPE (sym
), sym
, gdb_stdout
);
3126 /* variable, func, or typedef-that-is-c++-class */
3127 else if (kind
< TYPES_NAMESPACE
||
3128 (kind
== TYPES_NAMESPACE
&&
3129 SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
))
3131 type_print (SYMBOL_TYPE (sym
),
3132 (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
3133 ? "" : SYMBOL_PRINT_NAME (sym
)),
3136 printf_filtered (";\n");
3140 /* This help function for symtab_symbol_info() prints information
3141 for non-debugging symbols to gdb_stdout.
3144 print_msymbol_info (struct minimal_symbol
*msymbol
)
3148 if (TARGET_ADDR_BIT
<= 32)
3149 tmp
= local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol
)
3150 & (CORE_ADDR
) 0xffffffff,
3153 tmp
= local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol
),
3155 printf_filtered ("%s %s\n",
3156 tmp
, SYMBOL_PRINT_NAME (msymbol
));
3159 /* This is the guts of the commands "info functions", "info types", and
3160 "info variables". It calls search_symbols to find all matches and then
3161 print_[m]symbol_info to print out some useful information about the
3165 symtab_symbol_info (char *regexp
, namespace_enum kind
, int from_tty
)
3167 static char *classnames
[]
3169 {"variable", "function", "type", "method"};
3170 struct symbol_search
*symbols
;
3171 struct symbol_search
*p
;
3172 struct cleanup
*old_chain
;
3173 char *last_filename
= NULL
;
3176 /* must make sure that if we're interrupted, symbols gets freed */
3177 search_symbols (regexp
, kind
, 0, (char **) NULL
, &symbols
);
3178 old_chain
= make_cleanup_free_search_symbols (symbols
);
3180 printf_filtered (regexp
3181 ? "All %ss matching regular expression \"%s\":\n"
3182 : "All defined %ss:\n",
3183 classnames
[(int) (kind
- VARIABLES_NAMESPACE
)], regexp
);
3185 for (p
= symbols
; p
!= NULL
; p
= p
->next
)
3189 if (p
->msymbol
!= NULL
)
3193 printf_filtered ("\nNon-debugging symbols:\n");
3196 print_msymbol_info (p
->msymbol
);
3200 print_symbol_info (kind
,
3205 last_filename
= p
->symtab
->filename
;
3209 do_cleanups (old_chain
);
3213 variables_info (char *regexp
, int from_tty
)
3215 symtab_symbol_info (regexp
, VARIABLES_NAMESPACE
, from_tty
);
3219 functions_info (char *regexp
, int from_tty
)
3221 symtab_symbol_info (regexp
, FUNCTIONS_NAMESPACE
, from_tty
);
3226 types_info (char *regexp
, int from_tty
)
3228 symtab_symbol_info (regexp
, TYPES_NAMESPACE
, from_tty
);
3231 /* Breakpoint all functions matching regular expression. */
3234 rbreak_command_wrapper (char *regexp
, int from_tty
)
3236 rbreak_command (regexp
, from_tty
);
3240 rbreak_command (char *regexp
, int from_tty
)
3242 struct symbol_search
*ss
;
3243 struct symbol_search
*p
;
3244 struct cleanup
*old_chain
;
3246 search_symbols (regexp
, FUNCTIONS_NAMESPACE
, 0, (char **) NULL
, &ss
);
3247 old_chain
= make_cleanup_free_search_symbols (ss
);
3249 for (p
= ss
; p
!= NULL
; p
= p
->next
)
3251 if (p
->msymbol
== NULL
)
3253 char *string
= (char *) alloca (strlen (p
->symtab
->filename
)
3254 + strlen (DEPRECATED_SYMBOL_NAME (p
->symbol
))
3256 strcpy (string
, p
->symtab
->filename
);
3257 strcat (string
, ":'");
3258 strcat (string
, DEPRECATED_SYMBOL_NAME (p
->symbol
));
3259 strcat (string
, "'");
3260 break_command (string
, from_tty
);
3261 print_symbol_info (FUNCTIONS_NAMESPACE
,
3265 p
->symtab
->filename
);
3269 break_command (DEPRECATED_SYMBOL_NAME (p
->msymbol
), from_tty
);
3270 printf_filtered ("<function, no debug info> %s;\n",
3271 SYMBOL_PRINT_NAME (p
->msymbol
));
3275 do_cleanups (old_chain
);
3279 /* Helper routine for make_symbol_completion_list. */
3281 static int return_val_size
;
3282 static int return_val_index
;
3283 static char **return_val
;
3285 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
3287 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
3288 /* Put only the mangled name on the list. */ \
3289 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
3290 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
3291 completion_list_add_name \
3292 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
3294 completion_list_add_name \
3295 (DEPRECATED_SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
3298 /* Test to see if the symbol specified by SYMNAME (which is already
3299 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3300 characters. If so, add it to the current completion list. */
3303 completion_list_add_name (char *symname
, char *sym_text
, int sym_text_len
,
3304 char *text
, char *word
)
3309 /* clip symbols that cannot match */
3311 if (strncmp (symname
, sym_text
, sym_text_len
) != 0)
3316 /* We have a match for a completion, so add SYMNAME to the current list
3317 of matches. Note that the name is moved to freshly malloc'd space. */
3321 if (word
== sym_text
)
3323 new = xmalloc (strlen (symname
) + 5);
3324 strcpy (new, symname
);
3326 else if (word
> sym_text
)
3328 /* Return some portion of symname. */
3329 new = xmalloc (strlen (symname
) + 5);
3330 strcpy (new, symname
+ (word
- sym_text
));
3334 /* Return some of SYM_TEXT plus symname. */
3335 new = xmalloc (strlen (symname
) + (sym_text
- word
) + 5);
3336 strncpy (new, word
, sym_text
- word
);
3337 new[sym_text
- word
] = '\0';
3338 strcat (new, symname
);
3341 if (return_val_index
+ 3 > return_val_size
)
3343 newsize
= (return_val_size
*= 2) * sizeof (char *);
3344 return_val
= (char **) xrealloc ((char *) return_val
, newsize
);
3346 return_val
[return_val_index
++] = new;
3347 return_val
[return_val_index
] = NULL
;
3351 /* Return a NULL terminated array of all symbols (regardless of class)
3352 which begin by matching TEXT. If the answer is no symbols, then
3353 the return value is an array which contains only a NULL pointer.
3355 Problem: All of the symbols have to be copied because readline frees them.
3356 I'm not going to worry about this; hopefully there won't be that many. */
3359 make_symbol_completion_list (char *text
, char *word
)
3361 register struct symbol
*sym
;
3362 register struct symtab
*s
;
3363 register struct partial_symtab
*ps
;
3364 register struct minimal_symbol
*msymbol
;
3365 register struct objfile
*objfile
;
3366 register struct block
*b
, *surrounding_static_block
= 0;
3368 struct partial_symbol
**psym
;
3369 /* The symbol we are completing on. Points in same buffer as text. */
3371 /* Length of sym_text. */
3374 /* Now look for the symbol we are supposed to complete on.
3375 FIXME: This should be language-specific. */
3379 char *quote_pos
= NULL
;
3381 /* First see if this is a quoted string. */
3383 for (p
= text
; *p
!= '\0'; ++p
)
3385 if (quote_found
!= '\0')
3387 if (*p
== quote_found
)
3388 /* Found close quote. */
3390 else if (*p
== '\\' && p
[1] == quote_found
)
3391 /* A backslash followed by the quote character
3392 doesn't end the string. */
3395 else if (*p
== '\'' || *p
== '"')
3401 if (quote_found
== '\'')
3402 /* A string within single quotes can be a symbol, so complete on it. */
3403 sym_text
= quote_pos
+ 1;
3404 else if (quote_found
== '"')
3405 /* A double-quoted string is never a symbol, nor does it make sense
3406 to complete it any other way. */
3408 return_val
= (char **) xmalloc (sizeof (char *));
3409 return_val
[0] = NULL
;
3414 /* It is not a quoted string. Break it based on the characters
3415 which are in symbols. */
3418 if (isalnum (p
[-1]) || p
[-1] == '_' || p
[-1] == '\0')
3427 sym_text_len
= strlen (sym_text
);
3429 return_val_size
= 100;
3430 return_val_index
= 0;
3431 return_val
= (char **) xmalloc ((return_val_size
+ 1) * sizeof (char *));
3432 return_val
[0] = NULL
;
3434 /* Look through the partial symtabs for all symbols which begin
3435 by matching SYM_TEXT. Add each one that you find to the list. */
3437 ALL_PSYMTABS (objfile
, ps
)
3439 /* If the psymtab's been read in we'll get it when we search
3440 through the blockvector. */
3444 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
3445 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
3446 + ps
->n_global_syms
);
3449 /* If interrupted, then quit. */
3451 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
3454 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
3455 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
3456 + ps
->n_static_syms
);
3460 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
3464 /* At this point scan through the misc symbol vectors and add each
3465 symbol you find to the list. Eventually we want to ignore
3466 anything that isn't a text symbol (everything else will be
3467 handled by the psymtab code above). */
3469 ALL_MSYMBOLS (objfile
, msymbol
)
3472 COMPLETION_LIST_ADD_SYMBOL (msymbol
, sym_text
, sym_text_len
, text
, word
);
3475 /* Search upwards from currently selected frame (so that we can
3476 complete on local vars. */
3478 for (b
= get_selected_block (0); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
3480 if (!BLOCK_SUPERBLOCK (b
))
3482 surrounding_static_block
= b
; /* For elmin of dups */
3485 /* Also catch fields of types defined in this places which match our
3486 text string. Only complete on types visible from current context. */
3488 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
3490 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3491 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
3493 struct type
*t
= SYMBOL_TYPE (sym
);
3494 enum type_code c
= TYPE_CODE (t
);
3496 if (c
== TYPE_CODE_UNION
|| c
== TYPE_CODE_STRUCT
)
3498 for (j
= TYPE_N_BASECLASSES (t
); j
< TYPE_NFIELDS (t
); j
++)
3500 if (TYPE_FIELD_NAME (t
, j
))
3502 completion_list_add_name (TYPE_FIELD_NAME (t
, j
),
3503 sym_text
, sym_text_len
, text
, word
);
3511 /* Go through the symtabs and check the externs and statics for
3512 symbols which match. */
3514 ALL_SYMTABS (objfile
, s
)
3517 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3518 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
3520 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3524 ALL_SYMTABS (objfile
, s
)
3527 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3528 /* Don't do this block twice. */
3529 if (b
== surrounding_static_block
)
3531 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
3533 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3537 return (return_val
);
3540 /* Like make_symbol_completion_list, but returns a list of symbols
3541 defined in a source file FILE. */
3544 make_file_symbol_completion_list (char *text
, char *word
, char *srcfile
)
3546 register struct symbol
*sym
;
3547 register struct symtab
*s
;
3548 register struct block
*b
;
3550 /* The symbol we are completing on. Points in same buffer as text. */
3552 /* Length of sym_text. */
3555 /* Now look for the symbol we are supposed to complete on.
3556 FIXME: This should be language-specific. */
3560 char *quote_pos
= NULL
;
3562 /* First see if this is a quoted string. */
3564 for (p
= text
; *p
!= '\0'; ++p
)
3566 if (quote_found
!= '\0')
3568 if (*p
== quote_found
)
3569 /* Found close quote. */
3571 else if (*p
== '\\' && p
[1] == quote_found
)
3572 /* A backslash followed by the quote character
3573 doesn't end the string. */
3576 else if (*p
== '\'' || *p
== '"')
3582 if (quote_found
== '\'')
3583 /* A string within single quotes can be a symbol, so complete on it. */
3584 sym_text
= quote_pos
+ 1;
3585 else if (quote_found
== '"')
3586 /* A double-quoted string is never a symbol, nor does it make sense
3587 to complete it any other way. */
3589 return_val
= (char **) xmalloc (sizeof (char *));
3590 return_val
[0] = NULL
;
3595 /* It is not a quoted string. Break it based on the characters
3596 which are in symbols. */
3599 if (isalnum (p
[-1]) || p
[-1] == '_' || p
[-1] == '\0')
3608 sym_text_len
= strlen (sym_text
);
3610 return_val_size
= 10;
3611 return_val_index
= 0;
3612 return_val
= (char **) xmalloc ((return_val_size
+ 1) * sizeof (char *));
3613 return_val
[0] = NULL
;
3615 /* Find the symtab for SRCFILE (this loads it if it was not yet read
3617 s
= lookup_symtab (srcfile
);
3620 /* Maybe they typed the file with leading directories, while the
3621 symbol tables record only its basename. */
3622 const char *tail
= lbasename (srcfile
);
3625 s
= lookup_symtab (tail
);
3628 /* If we have no symtab for that file, return an empty list. */
3630 return (return_val
);
3632 /* Go through this symtab and check the externs and statics for
3633 symbols which match. */
3635 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3636 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
3638 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3641 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3642 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
3644 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3647 return (return_val
);
3650 /* A helper function for make_source_files_completion_list. It adds
3651 another file name to a list of possible completions, growing the
3652 list as necessary. */
3655 add_filename_to_list (const char *fname
, char *text
, char *word
,
3656 char ***list
, int *list_used
, int *list_alloced
)
3659 size_t fnlen
= strlen (fname
);
3661 if (*list_used
+ 1 >= *list_alloced
)
3664 *list
= (char **) xrealloc ((char *) *list
,
3665 *list_alloced
* sizeof (char *));
3670 /* Return exactly fname. */
3671 new = xmalloc (fnlen
+ 5);
3672 strcpy (new, fname
);
3674 else if (word
> text
)
3676 /* Return some portion of fname. */
3677 new = xmalloc (fnlen
+ 5);
3678 strcpy (new, fname
+ (word
- text
));
3682 /* Return some of TEXT plus fname. */
3683 new = xmalloc (fnlen
+ (text
- word
) + 5);
3684 strncpy (new, word
, text
- word
);
3685 new[text
- word
] = '\0';
3686 strcat (new, fname
);
3688 (*list
)[*list_used
] = new;
3689 (*list
)[++*list_used
] = NULL
;
3693 not_interesting_fname (const char *fname
)
3695 static const char *illegal_aliens
[] = {
3696 "_globals_", /* inserted by coff_symtab_read */
3701 for (i
= 0; illegal_aliens
[i
]; i
++)
3703 if (strcmp (fname
, illegal_aliens
[i
]) == 0)
3709 /* Return a NULL terminated array of all source files whose names
3710 begin with matching TEXT. The file names are looked up in the
3711 symbol tables of this program. If the answer is no matchess, then
3712 the return value is an array which contains only a NULL pointer. */
3715 make_source_files_completion_list (char *text
, char *word
)
3717 register struct symtab
*s
;
3718 register struct partial_symtab
*ps
;
3719 register struct objfile
*objfile
;
3721 int list_alloced
= 1;
3723 size_t text_len
= strlen (text
);
3724 char **list
= (char **) xmalloc (list_alloced
* sizeof (char *));
3725 const char *base_name
;
3729 if (!have_full_symbols () && !have_partial_symbols ())
3732 ALL_SYMTABS (objfile
, s
)
3734 if (not_interesting_fname (s
->filename
))
3736 if (!filename_seen (s
->filename
, 1, &first
)
3737 #if HAVE_DOS_BASED_FILE_SYSTEM
3738 && strncasecmp (s
->filename
, text
, text_len
) == 0
3740 && strncmp (s
->filename
, text
, text_len
) == 0
3744 /* This file matches for a completion; add it to the current
3746 add_filename_to_list (s
->filename
, text
, word
,
3747 &list
, &list_used
, &list_alloced
);
3751 /* NOTE: We allow the user to type a base name when the
3752 debug info records leading directories, but not the other
3753 way around. This is what subroutines of breakpoint
3754 command do when they parse file names. */
3755 base_name
= lbasename (s
->filename
);
3756 if (base_name
!= s
->filename
3757 && !filename_seen (base_name
, 1, &first
)
3758 #if HAVE_DOS_BASED_FILE_SYSTEM
3759 && strncasecmp (base_name
, text
, text_len
) == 0
3761 && strncmp (base_name
, text
, text_len
) == 0
3764 add_filename_to_list (base_name
, text
, word
,
3765 &list
, &list_used
, &list_alloced
);
3769 ALL_PSYMTABS (objfile
, ps
)
3771 if (not_interesting_fname (ps
->filename
))
3775 if (!filename_seen (ps
->filename
, 1, &first
)
3776 #if HAVE_DOS_BASED_FILE_SYSTEM
3777 && strncasecmp (ps
->filename
, text
, text_len
) == 0
3779 && strncmp (ps
->filename
, text
, text_len
) == 0
3783 /* This file matches for a completion; add it to the
3784 current list of matches. */
3785 add_filename_to_list (ps
->filename
, text
, word
,
3786 &list
, &list_used
, &list_alloced
);
3791 base_name
= lbasename (ps
->filename
);
3792 if (base_name
!= ps
->filename
3793 && !filename_seen (base_name
, 1, &first
)
3794 #if HAVE_DOS_BASED_FILE_SYSTEM
3795 && strncasecmp (base_name
, text
, text_len
) == 0
3797 && strncmp (base_name
, text
, text_len
) == 0
3800 add_filename_to_list (base_name
, text
, word
,
3801 &list
, &list_used
, &list_alloced
);
3809 /* Determine if PC is in the prologue of a function. The prologue is the area
3810 between the first instruction of a function, and the first executable line.
3811 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
3813 If non-zero, func_start is where we think the prologue starts, possibly
3814 by previous examination of symbol table information.
3818 in_prologue (CORE_ADDR pc
, CORE_ADDR func_start
)
3820 struct symtab_and_line sal
;
3821 CORE_ADDR func_addr
, func_end
;
3823 /* We have several sources of information we can consult to figure
3825 - Compilers usually emit line number info that marks the prologue
3826 as its own "source line". So the ending address of that "line"
3827 is the end of the prologue. If available, this is the most
3829 - The minimal symbols and partial symbols, which can usually tell
3830 us the starting and ending addresses of a function.
3831 - If we know the function's start address, we can call the
3832 architecture-defined SKIP_PROLOGUE function to analyze the
3833 instruction stream and guess where the prologue ends.
3834 - Our `func_start' argument; if non-zero, this is the caller's
3835 best guess as to the function's entry point. At the time of
3836 this writing, handle_inferior_event doesn't get this right, so
3837 it should be our last resort. */
3839 /* Consult the partial symbol table, to find which function
3841 if (! find_pc_partial_function (pc
, NULL
, &func_addr
, &func_end
))
3843 CORE_ADDR prologue_end
;
3845 /* We don't even have minsym information, so fall back to using
3846 func_start, if given. */
3848 return 1; /* We *might* be in a prologue. */
3850 prologue_end
= SKIP_PROLOGUE (func_start
);
3852 return func_start
<= pc
&& pc
< prologue_end
;
3855 /* If we have line number information for the function, that's
3856 usually pretty reliable. */
3857 sal
= find_pc_line (func_addr
, 0);
3859 /* Now sal describes the source line at the function's entry point,
3860 which (by convention) is the prologue. The end of that "line",
3861 sal.end, is the end of the prologue.
3863 Note that, for functions whose source code is all on a single
3864 line, the line number information doesn't always end up this way.
3865 So we must verify that our purported end-of-prologue address is
3866 *within* the function, not at its start or end. */
3868 || sal
.end
<= func_addr
3869 || func_end
<= sal
.end
)
3871 /* We don't have any good line number info, so use the minsym
3872 information, together with the architecture-specific prologue
3874 CORE_ADDR prologue_end
= SKIP_PROLOGUE (func_addr
);
3876 return func_addr
<= pc
&& pc
< prologue_end
;
3879 /* We have line number info, and it looks good. */
3880 return func_addr
<= pc
&& pc
< sal
.end
;
3884 /* Begin overload resolution functions */
3887 remove_params (const char *demangled_name
)
3893 if (demangled_name
== NULL
)
3896 /* First find the end of the arg list. */
3897 argp
= strrchr (demangled_name
, ')');
3901 /* Back up to the beginning. */
3904 while (argp
-- > demangled_name
)
3908 else if (*argp
== '(')
3917 internal_error (__FILE__
, __LINE__
,
3918 "bad demangled name %s\n", demangled_name
);
3919 while (argp
[-1] == ' ' && argp
> demangled_name
)
3922 new_name
= xmalloc (argp
- demangled_name
+ 1);
3923 memcpy (new_name
, demangled_name
, argp
- demangled_name
);
3924 new_name
[argp
- demangled_name
] = '\0';
3928 /* Helper routine for make_symbol_completion_list. */
3930 static int sym_return_val_size
;
3931 static int sym_return_val_index
;
3932 static struct symbol
**sym_return_val
;
3934 /* Test to see if the symbol specified by SYMNAME (which is already
3935 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3936 characters. If so, add it to the current completion list. */
3939 overload_list_add_symbol (struct symbol
*sym
, char *oload_name
)
3945 /* If there is no type information, we can't do anything, so skip */
3946 if (SYMBOL_TYPE (sym
) == NULL
)
3949 /* skip any symbols that we've already considered. */
3950 for (i
= 0; i
< sym_return_val_index
; ++i
)
3951 if (!strcmp (DEPRECATED_SYMBOL_NAME (sym
), DEPRECATED_SYMBOL_NAME (sym_return_val
[i
])))
3954 /* Get the demangled name without parameters */
3955 sym_name
= remove_params (SYMBOL_DEMANGLED_NAME (sym
));
3959 /* skip symbols that cannot match */
3960 if (strcmp (sym_name
, oload_name
) != 0)
3968 /* We have a match for an overload instance, so add SYM to the current list
3969 * of overload instances */
3970 if (sym_return_val_index
+ 3 > sym_return_val_size
)
3972 newsize
= (sym_return_val_size
*= 2) * sizeof (struct symbol
*);
3973 sym_return_val
= (struct symbol
**) xrealloc ((char *) sym_return_val
, newsize
);
3975 sym_return_val
[sym_return_val_index
++] = sym
;
3976 sym_return_val
[sym_return_val_index
] = NULL
;
3979 /* Return a null-terminated list of pointers to function symbols that
3980 * match name of the supplied symbol FSYM.
3981 * This is used in finding all overloaded instances of a function name.
3982 * This has been modified from make_symbol_completion_list. */
3986 make_symbol_overload_list (struct symbol
*fsym
)
3988 register struct symbol
*sym
;
3989 register struct symtab
*s
;
3990 register struct partial_symtab
*ps
;
3991 register struct objfile
*objfile
;
3992 register struct block
*b
, *surrounding_static_block
= 0;
3994 /* The name we are completing on. */
3995 char *oload_name
= NULL
;
3996 /* Length of name. */
3997 int oload_name_len
= 0;
3999 /* Look for the symbol we are supposed to complete on. */
4001 oload_name
= remove_params (SYMBOL_DEMANGLED_NAME (fsym
));
4004 sym_return_val_size
= 1;
4005 sym_return_val
= (struct symbol
**) xmalloc (2 * sizeof (struct symbol
*));
4006 sym_return_val
[0] = fsym
;
4007 sym_return_val
[1] = NULL
;
4009 return sym_return_val
;
4011 oload_name_len
= strlen (oload_name
);
4013 sym_return_val_size
= 100;
4014 sym_return_val_index
= 0;
4015 sym_return_val
= (struct symbol
**) xmalloc ((sym_return_val_size
+ 1) * sizeof (struct symbol
*));
4016 sym_return_val
[0] = NULL
;
4018 /* Read in all partial symtabs containing a partial symbol named
4021 ALL_PSYMTABS (objfile
, ps
)
4023 struct partial_symbol
**psym
;
4025 /* If the psymtab's been read in we'll get it when we search
4026 through the blockvector. */
4030 if ((lookup_partial_symbol (ps
, oload_name
, 1, VAR_NAMESPACE
) != NULL
)
4031 || (lookup_partial_symbol (ps
, oload_name
, 0, VAR_NAMESPACE
) != NULL
))
4032 PSYMTAB_TO_SYMTAB (ps
);
4035 /* Search upwards from currently selected frame (so that we can
4036 complete on local vars. */
4038 for (b
= get_selected_block (0); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
4040 if (!BLOCK_SUPERBLOCK (b
))
4042 surrounding_static_block
= b
; /* For elimination of dups */
4045 /* Also catch fields of types defined in this places which match our
4046 text string. Only complete on types visible from current context. */
4048 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
4050 overload_list_add_symbol (sym
, oload_name
);
4054 /* Go through the symtabs and check the externs and statics for
4055 symbols which match. */
4057 ALL_SYMTABS (objfile
, s
)
4060 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
4061 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
4063 overload_list_add_symbol (sym
, oload_name
);
4067 ALL_SYMTABS (objfile
, s
)
4070 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
4071 /* Don't do this block twice. */
4072 if (b
== surrounding_static_block
)
4074 ALL_BLOCK_SYMBOLS (b
, i
, sym
)
4076 overload_list_add_symbol (sym
, oload_name
);
4082 return (sym_return_val
);
4085 /* End of overload resolution functions */
4087 struct symtabs_and_lines
4088 decode_line_spec (char *string
, int funfirstline
)
4090 struct symtabs_and_lines sals
;
4091 struct symtab_and_line cursal
;
4094 error ("Empty line specification.");
4096 /* We use whatever is set as the current source line. We do not try
4097 and get a default or it will recursively call us! */
4098 cursal
= get_current_source_symtab_and_line ();
4100 sals
= decode_line_1 (&string
, funfirstline
,
4101 cursal
.symtab
, cursal
.line
,
4105 error ("Junk at end of line specification: %s", string
);
4110 static char *name_of_main
;
4113 set_main_name (const char *name
)
4115 if (name_of_main
!= NULL
)
4117 xfree (name_of_main
);
4118 name_of_main
= NULL
;
4122 name_of_main
= xstrdup (name
);
4129 if (name_of_main
!= NULL
)
4130 return name_of_main
;
4137 _initialize_symtab (void)
4139 add_info ("variables", variables_info
,
4140 "All global and static variable names, or those matching REGEXP.");
4142 add_com ("whereis", class_info
, variables_info
,
4143 "All global and static variable names, or those matching REGEXP.");
4145 add_info ("functions", functions_info
,
4146 "All function names, or those matching REGEXP.");
4149 /* FIXME: This command has at least the following problems:
4150 1. It prints builtin types (in a very strange and confusing fashion).
4151 2. It doesn't print right, e.g. with
4152 typedef struct foo *FOO
4153 type_print prints "FOO" when we want to make it (in this situation)
4154 print "struct foo *".
4155 I also think "ptype" or "whatis" is more likely to be useful (but if
4156 there is much disagreement "info types" can be fixed). */
4157 add_info ("types", types_info
,
4158 "All type names, or those matching REGEXP.");
4160 add_info ("sources", sources_info
,
4161 "Source files in the program.");
4163 add_com ("rbreak", class_breakpoint
, rbreak_command
,
4164 "Set a breakpoint for all functions matching REGEXP.");
4168 add_com ("lf", class_info
, sources_info
, "Source files in the program");
4169 add_com ("lg", class_info
, variables_info
,
4170 "All global and static variable names, or those matching REGEXP.");
4173 /* Initialize the one built-in type that isn't language dependent... */
4174 builtin_type_error
= init_type (TYPE_CODE_ERROR
, 0, 0,
4175 "<unknown type>", (struct objfile
*) NULL
);