1 /* Symbol table lookup for the GNU debugger, GDB.
2 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
3 1996, 1997, 1998, 1999, 2000, 2001
4 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
33 #include "call-cmds.h"
34 #include "gdb_regex.h"
35 #include "expression.h"
40 #include "filenames.h" /* for FILENAME_CMP */
44 #include <sys/types.h>
46 #include "gdb_string.h"
51 /* Prototype for one function in parser-defs.h,
52 instead of including that entire file. */
54 extern char *find_template_name_end (char *);
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 symtab
*lookup_symtab_1 (char *);
84 static struct symbol
*lookup_symbol_aux (const char *name
, const
85 struct block
*block
, const
86 namespace_enum
namespace, int
87 *is_a_field_of_this
, struct
91 static struct symbol
*find_active_alias (struct symbol
*sym
, CORE_ADDR addr
);
93 /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
94 /* Signals the presence of objects compiled by HP compilers */
95 int hp_som_som_object_present
= 0;
97 static void fixup_section (struct general_symbol_info
*, struct objfile
*);
99 static int file_matches (char *, char **, int);
101 static void print_symbol_info (namespace_enum
,
102 struct symtab
*, struct symbol
*, int, char *);
104 static void print_msymbol_info (struct minimal_symbol
*);
106 static void symtab_symbol_info (char *, namespace_enum
, int);
108 static void overload_list_add_symbol (struct symbol
*sym
, char *oload_name
);
110 void _initialize_symtab (void);
114 /* The single non-language-specific builtin type */
115 struct type
*builtin_type_error
;
117 /* Block in which the most recently searched-for symbol was found.
118 Might be better to make this a parameter to lookup_symbol and
121 const struct block
*block_found
;
123 /* While the C++ support is still in flux, issue a possibly helpful hint on
124 using the new command completion feature on single quoted demangled C++
125 symbols. Remove when loose ends are cleaned up. FIXME -fnf */
128 cplusplus_hint (char *name
)
130 while (*name
== '\'')
132 printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name
, name
);
133 printf_filtered ("(Note leading single quote.)\n");
136 /* Check for a symtab of a specific name; first in symtabs, then in
137 psymtabs. *If* there is no '/' in the name, a match after a '/'
138 in the symtab filename will also work. */
140 static struct symtab
*
141 lookup_symtab_1 (char *name
)
143 register struct symtab
*s
;
144 register struct partial_symtab
*ps
;
145 register struct objfile
*objfile
;
149 /* First, search for an exact match */
151 ALL_SYMTABS (objfile
, s
)
152 if (FILENAME_CMP (name
, s
->filename
) == 0)
155 /* Now, search for a matching tail (only if name doesn't have any dirs) */
157 if (lbasename (name
) == name
)
158 ALL_SYMTABS (objfile
, s
)
160 if (FILENAME_CMP (basename (s
->filename
), name
) == 0)
164 /* Same search rules as above apply here, but now we look thru the
167 ps
= lookup_partial_symtab (name
);
172 error ("Internal: readin %s pst for `%s' found when no symtab found.",
175 s
= PSYMTAB_TO_SYMTAB (ps
);
180 /* At this point, we have located the psymtab for this file, but
181 the conversion to a symtab has failed. This usually happens
182 when we are looking up an include file. In this case,
183 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
184 been created. So, we need to run through the symtabs again in
185 order to find the file.
186 XXX - This is a crock, and should be fixed inside of the the
187 symbol parsing routines. */
191 /* Lookup the symbol table of a source file named NAME. Try a couple
192 of variations if the first lookup doesn't work. */
195 lookup_symtab (char *name
)
197 register struct symtab
*s
;
202 s
= lookup_symtab_1 (name
);
207 /* This screws c-exp.y:yylex if there is both a type "tree" and a symtab
210 /* If name not found as specified, see if adding ".c" helps. */
211 /* Why is this? Is it just a user convenience? (If so, it's pretty
212 questionable in the presence of C++, FORTRAN, etc.). It's not in
215 copy
= (char *) alloca (strlen (name
) + 3);
218 s
= lookup_symtab_1 (copy
);
223 /* We didn't find anything; die. */
227 /* Lookup the partial symbol table of a source file named NAME.
228 *If* there is no '/' in the name, a match after a '/'
229 in the psymtab filename will also work. */
231 struct partial_symtab
*
232 lookup_partial_symtab (char *name
)
234 register struct partial_symtab
*pst
;
235 register struct objfile
*objfile
;
237 ALL_PSYMTABS (objfile
, pst
)
239 if (FILENAME_CMP (name
, pst
->filename
) == 0)
245 /* Now, search for a matching tail (only if name doesn't have any dirs) */
247 if (lbasename (name
) == name
)
248 ALL_PSYMTABS (objfile
, pst
)
250 if (FILENAME_CMP (basename (pst
->filename
), name
) == 0)
257 /* Mangle a GDB method stub type. This actually reassembles the pieces of the
258 full method name, which consist of the class name (from T), the unadorned
259 method name from METHOD_ID, and the signature for the specific overload,
260 specified by SIGNATURE_ID. Note that this function is g++ specific. */
263 gdb_mangle_name (struct type
*type
, int method_id
, int signature_id
)
265 int mangled_name_len
;
267 struct fn_field
*f
= TYPE_FN_FIELDLIST1 (type
, method_id
);
268 struct fn_field
*method
= &f
[signature_id
];
269 char *field_name
= TYPE_FN_FIELDLIST_NAME (type
, method_id
);
270 char *physname
= TYPE_FN_FIELD_PHYSNAME (f
, signature_id
);
271 char *newname
= type_name_no_tag (type
);
273 /* Does the form of physname indicate that it is the full mangled name
274 of a constructor (not just the args)? */
275 int is_full_physname_constructor
;
278 int is_destructor
= is_destructor_name (physname
);
279 /* Need a new type prefix. */
280 char *const_prefix
= method
->is_const
? "C" : "";
281 char *volatile_prefix
= method
->is_volatile
? "V" : "";
283 int len
= (newname
== NULL
? 0 : strlen (newname
));
285 if (is_operator_name (field_name
))
286 return xstrdup (physname
);
288 is_full_physname_constructor
= is_constructor_name (physname
);
291 is_full_physname_constructor
|| (newname
&& STREQ (field_name
, newname
));
294 is_destructor
= (strncmp (physname
, "__dt", 4) == 0);
296 if (is_destructor
|| is_full_physname_constructor
)
298 mangled_name
= (char *) xmalloc (strlen (physname
) + 1);
299 strcpy (mangled_name
, physname
);
305 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
307 else if (physname
[0] == 't' || physname
[0] == 'Q')
309 /* The physname for template and qualified methods already includes
311 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
317 sprintf (buf
, "__%s%s%d", const_prefix
, volatile_prefix
, len
);
319 mangled_name_len
= ((is_constructor
? 0 : strlen (field_name
))
320 + strlen (buf
) + len
+ strlen (physname
) + 1);
323 mangled_name
= (char *) xmalloc (mangled_name_len
);
325 mangled_name
[0] = '\0';
327 strcpy (mangled_name
, field_name
);
329 strcat (mangled_name
, buf
);
330 /* If the class doesn't have a name, i.e. newname NULL, then we just
331 mangle it using 0 for the length of the class. Thus it gets mangled
332 as something starting with `::' rather than `classname::'. */
334 strcat (mangled_name
, newname
);
336 strcat (mangled_name
, physname
);
337 return (mangled_name
);
342 /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
344 struct partial_symtab
*
345 find_pc_sect_psymtab (CORE_ADDR pc
, asection
*section
)
347 register struct partial_symtab
*pst
;
348 register struct objfile
*objfile
;
350 ALL_PSYMTABS (objfile
, pst
)
352 if (pc
>= pst
->textlow
&& pc
< pst
->texthigh
)
354 struct minimal_symbol
*msymbol
;
355 struct partial_symtab
*tpst
;
357 /* An objfile that has its functions reordered might have
358 many partial symbol tables containing the PC, but
359 we want the partial symbol table that contains the
360 function containing the PC. */
361 if (!(objfile
->flags
& OBJF_REORDERED
) &&
362 section
== 0) /* can't validate section this way */
365 msymbol
= lookup_minimal_symbol_by_pc_section (pc
, section
);
369 for (tpst
= pst
; tpst
!= NULL
; tpst
= tpst
->next
)
371 if (pc
>= tpst
->textlow
&& pc
< tpst
->texthigh
)
373 struct partial_symbol
*p
;
375 p
= find_pc_sect_psymbol (tpst
, pc
, section
);
377 && SYMBOL_VALUE_ADDRESS (p
)
378 == SYMBOL_VALUE_ADDRESS (msymbol
))
388 /* Find which partial symtab contains PC. Return 0 if none.
389 Backward compatibility, no section */
391 struct partial_symtab
*
392 find_pc_psymtab (CORE_ADDR pc
)
394 return find_pc_sect_psymtab (pc
, find_pc_mapped_section (pc
));
397 /* Find which partial symbol within a psymtab matches PC and SECTION.
398 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
400 struct partial_symbol
*
401 find_pc_sect_psymbol (struct partial_symtab
*psymtab
, CORE_ADDR pc
,
404 struct partial_symbol
*best
= NULL
, *p
, **pp
;
408 psymtab
= find_pc_sect_psymtab (pc
, section
);
412 /* Cope with programs that start at address 0 */
413 best_pc
= (psymtab
->textlow
!= 0) ? psymtab
->textlow
- 1 : 0;
415 /* Search the global symbols as well as the static symbols, so that
416 find_pc_partial_function doesn't use a minimal symbol and thus
417 cache a bad endaddr. */
418 for (pp
= psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
;
419 (pp
- (psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
)
420 < psymtab
->n_global_syms
);
424 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
425 && SYMBOL_CLASS (p
) == LOC_BLOCK
426 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
427 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
428 || (psymtab
->textlow
== 0
429 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
431 if (section
) /* match on a specific section */
433 fixup_psymbol_section (p
, psymtab
->objfile
);
434 if (SYMBOL_BFD_SECTION (p
) != section
)
437 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
442 for (pp
= psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
;
443 (pp
- (psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
)
444 < psymtab
->n_static_syms
);
448 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
449 && SYMBOL_CLASS (p
) == LOC_BLOCK
450 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
451 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
452 || (psymtab
->textlow
== 0
453 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
455 if (section
) /* match on a specific section */
457 fixup_psymbol_section (p
, psymtab
->objfile
);
458 if (SYMBOL_BFD_SECTION (p
) != section
)
461 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
469 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
470 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
472 struct partial_symbol
*
473 find_pc_psymbol (struct partial_symtab
*psymtab
, CORE_ADDR pc
)
475 return find_pc_sect_psymbol (psymtab
, pc
, find_pc_mapped_section (pc
));
478 /* Debug symbols usually don't have section information. We need to dig that
479 out of the minimal symbols and stash that in the debug symbol. */
482 fixup_section (struct general_symbol_info
*ginfo
, struct objfile
*objfile
)
484 struct minimal_symbol
*msym
;
485 msym
= lookup_minimal_symbol (ginfo
->name
, NULL
, objfile
);
489 ginfo
->bfd_section
= SYMBOL_BFD_SECTION (msym
);
490 ginfo
->section
= SYMBOL_SECTION (msym
);
495 fixup_symbol_section (struct symbol
*sym
, struct objfile
*objfile
)
500 if (SYMBOL_BFD_SECTION (sym
))
503 fixup_section (&sym
->ginfo
, objfile
);
508 struct partial_symbol
*
509 fixup_psymbol_section (struct partial_symbol
*psym
, struct objfile
*objfile
)
514 if (SYMBOL_BFD_SECTION (psym
))
517 fixup_section (&psym
->ginfo
, objfile
);
522 /* Find the definition for a specified symbol name NAME
523 in namespace NAMESPACE, visible from lexical block BLOCK.
524 Returns the struct symbol pointer, or zero if no symbol is found.
525 If SYMTAB is non-NULL, store the symbol table in which the
526 symbol was found there, or NULL if not found.
527 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
528 NAME is a field of the current implied argument `this'. If so set
529 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
530 BLOCK_FOUND is set to the block in which NAME is found (in the case of
531 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
533 /* This function has a bunch of loops in it and it would seem to be
534 attractive to put in some QUIT's (though I'm not really sure
535 whether it can run long enough to be really important). But there
536 are a few calls for which it would appear to be bad news to quit
537 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
538 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
539 code below which can error(), but that probably doesn't affect
540 these calls since they are looking for a known variable and thus
541 can probably assume it will never hit the C++ code). */
544 lookup_symbol (const char *name
, const struct block
*block
,
545 const namespace_enum
namespace, int *is_a_field_of_this
,
546 struct symtab
**symtab
)
548 char *modified_name
= NULL
;
549 char *modified_name2
= NULL
;
550 int needtofreename
= 0;
551 struct symbol
*returnval
;
553 if (case_sensitivity
== case_sensitive_off
)
559 copy
= (char *) alloca (len
+ 1);
560 for (i
= 0; i
< len
; i
++)
561 copy
[i
] = tolower (name
[i
]);
563 modified_name
= copy
;
566 modified_name
= (char *) name
;
568 /* If we are using C++ language, demangle the name before doing a lookup, so
569 we can always binary search. */
570 if (current_language
->la_language
== language_cplus
)
572 modified_name2
= cplus_demangle (modified_name
, DMGL_ANSI
| DMGL_PARAMS
);
575 modified_name
= modified_name2
;
580 returnval
= lookup_symbol_aux (modified_name
, block
, namespace,
581 is_a_field_of_this
, symtab
);
583 xfree (modified_name2
);
588 static struct symbol
*
589 lookup_symbol_aux (const char *name
, const struct block
*block
,
590 const namespace_enum
namespace, int *is_a_field_of_this
,
591 struct symtab
**symtab
)
593 register struct symbol
*sym
;
594 register struct symtab
*s
= NULL
;
595 register struct partial_symtab
*ps
;
596 register struct blockvector
*bv
;
597 register struct objfile
*objfile
= NULL
;
598 register struct block
*b
;
599 register struct minimal_symbol
*msymbol
;
602 /* Search specified block and its superiors. */
606 sym
= lookup_block_symbol (block
, name
, namespace);
612 /* Search the list of symtabs for one which contains the
613 address of the start of this block. */
614 ALL_SYMTABS (objfile
, s
)
616 bv
= BLOCKVECTOR (s
);
617 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
618 if (BLOCK_START (b
) <= BLOCK_START (block
)
619 && BLOCK_END (b
) > BLOCK_START (block
))
626 return fixup_symbol_section (sym
, objfile
);
628 block
= BLOCK_SUPERBLOCK (block
);
631 /* FIXME: this code is never executed--block is always NULL at this
632 point. What is it trying to do, anyway? We already should have
633 checked the STATIC_BLOCK above (it is the superblock of top-level
634 blocks). Why is VAR_NAMESPACE special-cased? */
635 /* Don't need to mess with the psymtabs; if we have a block,
636 that file is read in. If we don't, then we deal later with
637 all the psymtab stuff that needs checking. */
638 /* Note (RT): The following never-executed code looks unnecessary to me also.
639 * If we change the code to use the original (passed-in)
640 * value of 'block', we could cause it to execute, but then what
641 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
642 * 'block' was already searched by the above code. And the STATIC_BLOCK's
643 * of *other* symtabs (those files not containing 'block' lexically)
644 * should not contain 'block' address-wise. So we wouldn't expect this
645 * code to find any 'sym''s that were not found above. I vote for
646 * deleting the following paragraph of code.
648 if (namespace == VAR_NAMESPACE
&& block
!= NULL
)
651 /* Find the right symtab. */
652 ALL_SYMTABS (objfile
, s
)
654 bv
= BLOCKVECTOR (s
);
655 b
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
656 if (BLOCK_START (b
) <= BLOCK_START (block
)
657 && BLOCK_END (b
) > BLOCK_START (block
))
659 sym
= lookup_block_symbol (b
, name
, VAR_NAMESPACE
);
665 return fixup_symbol_section (sym
, objfile
);
672 /* C++: If requested to do so by the caller,
673 check to see if NAME is a field of `this'. */
674 if (is_a_field_of_this
)
676 struct value
*v
= value_of_this (0);
678 *is_a_field_of_this
= 0;
679 if (v
&& check_field (v
, name
))
681 *is_a_field_of_this
= 1;
688 /* Now search all global blocks. Do the symtab's first, then
689 check the psymtab's. If a psymtab indicates the existence
690 of the desired name as a global, then do psymtab-to-symtab
691 conversion on the fly and return the found symbol. */
693 ALL_SYMTABS (objfile
, s
)
695 bv
= BLOCKVECTOR (s
);
696 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
697 sym
= lookup_block_symbol (block
, name
, namespace);
703 return fixup_symbol_section (sym
, objfile
);
709 /* Check for the possibility of the symbol being a function or
710 a mangled variable that is stored in one of the minimal symbol tables.
711 Eventually, all global symbols might be resolved in this way. */
713 if (namespace == VAR_NAMESPACE
)
715 msymbol
= lookup_minimal_symbol (name
, NULL
, NULL
);
718 s
= find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol
),
719 SYMBOL_BFD_SECTION (msymbol
));
722 /* This is a function which has a symtab for its address. */
723 bv
= BLOCKVECTOR (s
);
724 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
725 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
727 /* We kept static functions in minimal symbol table as well as
728 in static scope. We want to find them in the symbol table. */
731 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
732 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
736 /* sym == 0 if symbol was found in the minimal symbol table
737 but not in the symtab.
738 Return 0 to use the msymbol definition of "foo_".
740 This happens for Fortran "foo_" symbols,
741 which are "foo" in the symtab.
743 This can also happen if "asm" is used to make a
744 regular symbol but not a debugging symbol, e.g.
751 return fixup_symbol_section (sym
, objfile
);
753 else if (MSYMBOL_TYPE (msymbol
) != mst_text
754 && MSYMBOL_TYPE (msymbol
) != mst_file_text
755 && !STREQ (name
, SYMBOL_NAME (msymbol
)))
757 /* This is a mangled variable, look it up by its
759 return lookup_symbol_aux (SYMBOL_NAME (msymbol
), block
,
760 namespace, is_a_field_of_this
, symtab
);
762 /* There are no debug symbols for this file, or we are looking
763 for an unmangled variable.
764 Try to find a matching static symbol below. */
770 ALL_PSYMTABS (objfile
, ps
)
772 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 1, namespace))
774 s
= PSYMTAB_TO_SYMTAB (ps
);
775 bv
= BLOCKVECTOR (s
);
776 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
777 sym
= lookup_block_symbol (block
, name
, namespace);
780 /* This shouldn't be necessary, but as a last resort
781 * try looking in the statics even though the psymtab
782 * claimed the symbol was global. It's possible that
783 * the psymtab gets it wrong in some cases.
785 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
786 sym
= lookup_block_symbol (block
, name
, namespace);
788 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
789 %s may be an inlined function, or may be a template function\n\
790 (if a template, try specifying an instantiation: %s<type>).",
791 name
, ps
->filename
, name
, name
);
795 return fixup_symbol_section (sym
, objfile
);
799 /* Now search all static file-level symbols.
800 Not strictly correct, but more useful than an error.
801 Do the symtabs first, then check the psymtabs.
802 If a psymtab indicates the existence
803 of the desired name as a file-level static, then do psymtab-to-symtab
804 conversion on the fly and return the found symbol. */
806 ALL_SYMTABS (objfile
, s
)
808 bv
= BLOCKVECTOR (s
);
809 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
810 sym
= lookup_block_symbol (block
, name
, namespace);
816 return fixup_symbol_section (sym
, objfile
);
820 ALL_PSYMTABS (objfile
, ps
)
822 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 0, namespace))
824 s
= PSYMTAB_TO_SYMTAB (ps
);
825 bv
= BLOCKVECTOR (s
);
826 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
827 sym
= lookup_block_symbol (block
, name
, namespace);
830 /* This shouldn't be necessary, but as a last resort
831 * try looking in the globals even though the psymtab
832 * claimed the symbol was static. It's possible that
833 * the psymtab gets it wrong in some cases.
835 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
836 sym
= lookup_block_symbol (block
, name
, namespace);
838 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
839 %s may be an inlined function, or may be a template function\n\
840 (if a template, try specifying an instantiation: %s<type>).",
841 name
, ps
->filename
, name
, name
);
845 return fixup_symbol_section (sym
, objfile
);
851 /* Check for the possibility of the symbol being a function or
852 a global variable that is stored in one of the minimal symbol tables.
853 The "minimal symbol table" is built from linker-supplied info.
855 RT: I moved this check to last, after the complete search of
856 the global (p)symtab's and static (p)symtab's. For HP-generated
857 symbol tables, this check was causing a premature exit from
858 lookup_symbol with NULL return, and thus messing up symbol lookups
859 of things like "c::f". It seems to me a check of the minimal
860 symbol table ought to be a last resort in any case. I'm vaguely
861 worried about the comment below which talks about FORTRAN routines "foo_"
862 though... is it saying we need to do the "minsym" check before
863 the static check in this case?
866 if (namespace == VAR_NAMESPACE
)
868 msymbol
= lookup_minimal_symbol (name
, NULL
, NULL
);
871 /* OK, we found a minimal symbol in spite of not
872 * finding any symbol. There are various possible
873 * explanations for this. One possibility is the symbol
874 * exists in code not compiled -g. Another possibility
875 * is that the 'psymtab' isn't doing its job.
876 * A third possibility, related to #2, is that we were confused
877 * by name-mangling. For instance, maybe the psymtab isn't
878 * doing its job because it only know about demangled
879 * names, but we were given a mangled name...
882 /* We first use the address in the msymbol to try to
883 * locate the appropriate symtab. Note that find_pc_symtab()
884 * has a side-effect of doing psymtab-to-symtab expansion,
885 * for the found symtab.
887 s
= find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
));
890 bv
= BLOCKVECTOR (s
);
891 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
892 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
894 /* We kept static functions in minimal symbol table as well as
895 in static scope. We want to find them in the symbol table. */
898 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
899 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
902 /* If we found one, return it */
910 /* If we get here with sym == 0, the symbol was
911 found in the minimal symbol table
912 but not in the symtab.
913 Fall through and return 0 to use the msymbol
914 definition of "foo_".
915 (Note that outer code generally follows up a call
916 to this routine with a call to lookup_minimal_symbol(),
917 so a 0 return means we'll just flow into that other routine).
919 This happens for Fortran "foo_" symbols,
920 which are "foo" in the symtab.
922 This can also happen if "asm" is used to make a
923 regular symbol but not a debugging symbol, e.g.
929 /* If the lookup-by-address fails, try repeating the
930 * entire lookup process with the symbol name from
931 * the msymbol (if different from the original symbol name).
933 else if (MSYMBOL_TYPE (msymbol
) != mst_text
934 && MSYMBOL_TYPE (msymbol
) != mst_file_text
935 && !STREQ (name
, SYMBOL_NAME (msymbol
)))
937 return lookup_symbol_aux (SYMBOL_NAME (msymbol
), block
,
938 namespace, is_a_field_of_this
, symtab
);
950 /* Look, in partial_symtab PST, for symbol NAME. Check the global
951 symbols if GLOBAL, the static symbols if not */
953 static struct partial_symbol
*
954 lookup_partial_symbol (struct partial_symtab
*pst
, const char *name
, int global
,
955 namespace_enum
namespace)
957 struct partial_symbol
*temp
;
958 struct partial_symbol
**start
, **psym
;
959 struct partial_symbol
**top
, **bottom
, **center
;
960 int length
= (global
? pst
->n_global_syms
: pst
->n_static_syms
);
961 int do_linear_search
= 1;
968 pst
->objfile
->global_psymbols
.list
+ pst
->globals_offset
:
969 pst
->objfile
->static_psymbols
.list
+ pst
->statics_offset
);
971 if (global
) /* This means we can use a binary search. */
973 do_linear_search
= 0;
975 /* Binary search. This search is guaranteed to end with center
976 pointing at the earliest partial symbol with the correct
977 name. At that point *all* partial symbols with that name
978 will be checked against the correct namespace. */
981 top
= start
+ length
- 1;
984 center
= bottom
+ (top
- bottom
) / 2;
986 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
987 if (!do_linear_search
988 && (SYMBOL_LANGUAGE (*center
) == language_java
))
990 do_linear_search
= 1;
992 if (strcmp (SYMBOL_SOURCE_NAME (*center
), name
) >= 0)
1001 if (!(top
== bottom
))
1002 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1004 /* djb - 2000-06-03 - Use SYMBOL_MATCHES_NAME, not a strcmp, so
1005 we don't have to force a linear search on C++. Probably holds true
1006 for JAVA as well, no way to check.*/
1007 while (SYMBOL_MATCHES_NAME (*top
,name
))
1009 if (SYMBOL_NAMESPACE (*top
) == namespace)
1017 /* Can't use a binary search or else we found during the binary search that
1018 we should also do a linear search. */
1020 if (do_linear_search
)
1022 for (psym
= start
; psym
< start
+ length
; psym
++)
1024 if (namespace == SYMBOL_NAMESPACE (*psym
))
1026 if (SYMBOL_MATCHES_NAME (*psym
, name
))
1037 /* Look up a type named NAME in the struct_namespace. The type returned
1038 must not be opaque -- i.e., must have at least one field defined
1040 This code was modelled on lookup_symbol -- the parts not relevant to looking
1041 up types were just left out. In particular it's assumed here that types
1042 are available in struct_namespace and only at file-static or global blocks. */
1046 lookup_transparent_type (const char *name
)
1048 register struct symbol
*sym
;
1049 register struct symtab
*s
= NULL
;
1050 register struct partial_symtab
*ps
;
1051 struct blockvector
*bv
;
1052 register struct objfile
*objfile
;
1053 register struct block
*block
;
1055 /* Now search all the global symbols. Do the symtab's first, then
1056 check the psymtab's. If a psymtab indicates the existence
1057 of the desired name as a global, then do psymtab-to-symtab
1058 conversion on the fly and return the found symbol. */
1060 ALL_SYMTABS (objfile
, s
)
1062 bv
= BLOCKVECTOR (s
);
1063 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1064 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1065 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1067 return SYMBOL_TYPE (sym
);
1071 ALL_PSYMTABS (objfile
, ps
)
1073 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 1, STRUCT_NAMESPACE
))
1075 s
= PSYMTAB_TO_SYMTAB (ps
);
1076 bv
= BLOCKVECTOR (s
);
1077 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1078 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1081 /* This shouldn't be necessary, but as a last resort
1082 * try looking in the statics even though the psymtab
1083 * claimed the symbol was global. It's possible that
1084 * the psymtab gets it wrong in some cases.
1086 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1087 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1089 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
1090 %s may be an inlined function, or may be a template function\n\
1091 (if a template, try specifying an instantiation: %s<type>).",
1092 name
, ps
->filename
, name
, name
);
1094 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1095 return SYMBOL_TYPE (sym
);
1099 /* Now search the static file-level symbols.
1100 Not strictly correct, but more useful than an error.
1101 Do the symtab's first, then
1102 check the psymtab's. If a psymtab indicates the existence
1103 of the desired name as a file-level static, then do psymtab-to-symtab
1104 conversion on the fly and return the found symbol.
1107 ALL_SYMTABS (objfile
, s
)
1109 bv
= BLOCKVECTOR (s
);
1110 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1111 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1112 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1114 return SYMBOL_TYPE (sym
);
1118 ALL_PSYMTABS (objfile
, ps
)
1120 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 0, STRUCT_NAMESPACE
))
1122 s
= PSYMTAB_TO_SYMTAB (ps
);
1123 bv
= BLOCKVECTOR (s
);
1124 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1125 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1128 /* This shouldn't be necessary, but as a last resort
1129 * try looking in the globals even though the psymtab
1130 * claimed the symbol was static. It's possible that
1131 * the psymtab gets it wrong in some cases.
1133 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1134 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1136 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
1137 %s may be an inlined function, or may be a template function\n\
1138 (if a template, try specifying an instantiation: %s<type>).",
1139 name
, ps
->filename
, name
, name
);
1141 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1142 return SYMBOL_TYPE (sym
);
1145 return (struct type
*) 0;
1149 /* Find the psymtab containing main(). */
1150 /* FIXME: What about languages without main() or specially linked
1151 executables that have no main() ? */
1153 struct partial_symtab
*
1154 find_main_psymtab (void)
1156 register struct partial_symtab
*pst
;
1157 register struct objfile
*objfile
;
1159 ALL_PSYMTABS (objfile
, pst
)
1161 if (lookup_partial_symbol (pst
, "main", 1, VAR_NAMESPACE
))
1169 /* Search BLOCK for symbol NAME in NAMESPACE.
1171 Note that if NAME is the demangled form of a C++ symbol, we will fail
1172 to find a match during the binary search of the non-encoded names, but
1173 for now we don't worry about the slight inefficiency of looking for
1174 a match we'll never find, since it will go pretty quick. Once the
1175 binary search terminates, we drop through and do a straight linear
1176 search on the symbols. Each symbol which is marked as being a C++
1177 symbol (language_cplus set) has both the encoded and non-encoded names
1178 tested for a match. */
1181 lookup_block_symbol (register const struct block
*block
, const char *name
,
1182 const namespace_enum
namespace)
1184 register int bot
, top
, inc
;
1185 register struct symbol
*sym
;
1186 register struct symbol
*sym_found
= NULL
;
1187 register int do_linear_search
= 1;
1189 /* If the blocks's symbols were sorted, start with a binary search. */
1191 if (BLOCK_SHOULD_SORT (block
))
1193 /* Reset the linear search flag so if the binary search fails, we
1194 won't do the linear search once unless we find some reason to
1197 do_linear_search
= 0;
1198 top
= BLOCK_NSYMS (block
);
1201 /* Advance BOT to not far before the first symbol whose name is NAME. */
1205 inc
= (top
- bot
+ 1);
1206 /* No need to keep binary searching for the last few bits worth. */
1211 inc
= (inc
>> 1) + bot
;
1212 sym
= BLOCK_SYM (block
, inc
);
1213 if (!do_linear_search
&& (SYMBOL_LANGUAGE (sym
) == language_java
))
1215 do_linear_search
= 1;
1217 if (SYMBOL_SOURCE_NAME (sym
)[0] < name
[0])
1221 else if (SYMBOL_SOURCE_NAME (sym
)[0] > name
[0])
1225 else if (strcmp (SYMBOL_SOURCE_NAME (sym
), name
) < 0)
1235 /* Now scan forward until we run out of symbols, find one whose
1236 name is greater than NAME, or find one we want. If there is
1237 more than one symbol with the right name and namespace, we
1238 return the first one; I believe it is now impossible for us
1239 to encounter two symbols with the same name and namespace
1240 here, because blocks containing argument symbols are no
1243 top
= BLOCK_NSYMS (block
);
1246 sym
= BLOCK_SYM (block
, bot
);
1247 if (SYMBOL_NAMESPACE (sym
) == namespace &&
1248 SYMBOL_MATCHES_NAME (sym
, name
))
1256 /* Here if block isn't sorted, or we fail to find a match during the
1257 binary search above. If during the binary search above, we find a
1258 symbol which is a C++ symbol, then we have re-enabled the linear
1259 search flag which was reset when starting the binary search.
1261 This loop is equivalent to the loop above, but hacked greatly for speed.
1263 Note that parameter symbols do not always show up last in the
1264 list; this loop makes sure to take anything else other than
1265 parameter symbols first; it only uses parameter symbols as a
1266 last resort. Note that this only takes up extra computation
1269 if (do_linear_search
)
1271 top
= BLOCK_NSYMS (block
);
1275 sym
= BLOCK_SYM (block
, bot
);
1276 if (SYMBOL_NAMESPACE (sym
) == namespace &&
1277 SYMBOL_MATCHES_NAME (sym
, name
))
1279 /* If SYM has aliases, then use any alias that is active
1280 at the current PC. If no alias is active at the current
1281 PC, then use the main symbol.
1283 ?!? Is checking the current pc correct? Is this routine
1284 ever called to look up a symbol from another context?
1286 FIXME: No, it's not correct. If someone sets a
1287 conditional breakpoint at an address, then the
1288 breakpoint's `struct expression' should refer to the
1289 `struct symbol' appropriate for the breakpoint's
1290 address, which may not be the PC.
1292 Even if it were never called from another context,
1293 it's totally bizarre for lookup_symbol's behavior to
1294 depend on the value of the inferior's current PC. We
1295 should pass in the appropriate PC as well as the
1296 block. The interface to lookup_symbol should change
1297 to require the caller to provide a PC. */
1299 if (SYMBOL_ALIASES (sym
))
1300 sym
= find_active_alias (sym
, read_pc ());
1303 if (SYMBOL_CLASS (sym
) != LOC_ARG
&&
1304 SYMBOL_CLASS (sym
) != LOC_LOCAL_ARG
&&
1305 SYMBOL_CLASS (sym
) != LOC_REF_ARG
&&
1306 SYMBOL_CLASS (sym
) != LOC_REGPARM
&&
1307 SYMBOL_CLASS (sym
) != LOC_REGPARM_ADDR
&&
1308 SYMBOL_CLASS (sym
) != LOC_BASEREG_ARG
)
1316 return (sym_found
); /* Will be NULL if not found. */
1319 /* Given a main symbol SYM and ADDR, search through the alias
1320 list to determine if an alias is active at ADDR and return
1323 If no alias is active, then return SYM. */
1325 static struct symbol
*
1326 find_active_alias (struct symbol
*sym
, CORE_ADDR addr
)
1328 struct range_list
*r
;
1329 struct alias_list
*aliases
;
1331 /* If we have aliases, check them first. */
1332 aliases
= SYMBOL_ALIASES (sym
);
1336 if (!SYMBOL_RANGES (aliases
->sym
))
1337 return aliases
->sym
;
1338 for (r
= SYMBOL_RANGES (aliases
->sym
); r
; r
= r
->next
)
1340 if (r
->start
<= addr
&& r
->end
> addr
)
1341 return aliases
->sym
;
1343 aliases
= aliases
->next
;
1346 /* Nothing found, return the main symbol. */
1351 /* Return the symbol for the function which contains a specified
1352 lexical block, described by a struct block BL. */
1355 block_function (struct block
*bl
)
1357 while (BLOCK_FUNCTION (bl
) == 0 && BLOCK_SUPERBLOCK (bl
) != 0)
1358 bl
= BLOCK_SUPERBLOCK (bl
);
1360 return BLOCK_FUNCTION (bl
);
1363 /* Find the symtab associated with PC and SECTION. Look through the
1364 psymtabs and read in another symtab if necessary. */
1367 find_pc_sect_symtab (CORE_ADDR pc
, asection
*section
)
1369 register struct block
*b
;
1370 struct blockvector
*bv
;
1371 register struct symtab
*s
= NULL
;
1372 register struct symtab
*best_s
= NULL
;
1373 register struct partial_symtab
*ps
;
1374 register struct objfile
*objfile
;
1375 CORE_ADDR distance
= 0;
1377 /* Search all symtabs for the one whose file contains our address, and which
1378 is the smallest of all the ones containing the address. This is designed
1379 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1380 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1381 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1383 This happens for native ecoff format, where code from included files
1384 gets its own symtab. The symtab for the included file should have
1385 been read in already via the dependency mechanism.
1386 It might be swifter to create several symtabs with the same name
1387 like xcoff does (I'm not sure).
1389 It also happens for objfiles that have their functions reordered.
1390 For these, the symtab we are looking for is not necessarily read in. */
1392 ALL_SYMTABS (objfile
, s
)
1394 bv
= BLOCKVECTOR (s
);
1395 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1397 if (BLOCK_START (b
) <= pc
1398 && BLOCK_END (b
) > pc
1400 || BLOCK_END (b
) - BLOCK_START (b
) < distance
))
1402 /* For an objfile that has its functions reordered,
1403 find_pc_psymtab will find the proper partial symbol table
1404 and we simply return its corresponding symtab. */
1405 /* In order to better support objfiles that contain both
1406 stabs and coff debugging info, we continue on if a psymtab
1408 if ((objfile
->flags
& OBJF_REORDERED
) && objfile
->psymtabs
)
1410 ps
= find_pc_sect_psymtab (pc
, section
);
1412 return PSYMTAB_TO_SYMTAB (ps
);
1418 for (i
= 0; i
< b
->nsyms
; i
++)
1420 fixup_symbol_section (b
->sym
[i
], objfile
);
1421 if (section
== SYMBOL_BFD_SECTION (b
->sym
[i
]))
1425 continue; /* no symbol in this symtab matches section */
1427 distance
= BLOCK_END (b
) - BLOCK_START (b
);
1436 ps
= find_pc_sect_psymtab (pc
, section
);
1440 /* Might want to error() here (in case symtab is corrupt and
1441 will cause a core dump), but maybe we can successfully
1442 continue, so let's not. */
1444 (Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n",
1446 s
= PSYMTAB_TO_SYMTAB (ps
);
1451 /* Find the symtab associated with PC. Look through the psymtabs and
1452 read in another symtab if necessary. Backward compatibility, no section */
1455 find_pc_symtab (CORE_ADDR pc
)
1457 return find_pc_sect_symtab (pc
, find_pc_mapped_section (pc
));
1463 /* Find the closest symbol value (of any sort -- function or variable)
1464 for a given address value. Slow but complete. (currently unused,
1465 mainly because it is too slow. We could fix it if each symtab and
1466 psymtab had contained in it the addresses ranges of each of its
1467 sections, which also would be required to make things like "info
1468 line *0x2345" cause psymtabs to be converted to symtabs). */
1471 find_addr_symbol (CORE_ADDR addr
, struct symtab
**symtabp
, CORE_ADDR
*symaddrp
)
1473 struct symtab
*symtab
, *best_symtab
;
1474 struct objfile
*objfile
;
1475 register int bot
, top
;
1476 register struct symbol
*sym
;
1477 register CORE_ADDR sym_addr
;
1478 struct block
*block
;
1481 /* Info on best symbol seen so far */
1483 register CORE_ADDR best_sym_addr
= 0;
1484 struct symbol
*best_sym
= 0;
1486 /* FIXME -- we should pull in all the psymtabs, too! */
1487 ALL_SYMTABS (objfile
, symtab
)
1489 /* Search the global and static blocks in this symtab for
1490 the closest symbol-address to the desired address. */
1492 for (blocknum
= GLOBAL_BLOCK
; blocknum
<= STATIC_BLOCK
; blocknum
++)
1495 block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab
), blocknum
);
1496 top
= BLOCK_NSYMS (block
);
1497 for (bot
= 0; bot
< top
; bot
++)
1499 sym
= BLOCK_SYM (block
, bot
);
1500 switch (SYMBOL_CLASS (sym
))
1504 sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
1508 sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
1509 /* An indirect symbol really lives at *sym_addr,
1510 * so an indirection needs to be done.
1511 * However, I am leaving this commented out because it's
1512 * expensive, and it's possible that symbolization
1513 * could be done without an active process (in
1514 * case this read_memory will fail). RT
1515 sym_addr = read_memory_unsigned_integer
1516 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1521 sym_addr
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
1528 if (sym_addr
<= addr
)
1529 if (sym_addr
> best_sym_addr
)
1531 /* Quit if we found an exact match. */
1533 best_sym_addr
= sym_addr
;
1534 best_symtab
= symtab
;
1535 if (sym_addr
== addr
)
1544 *symtabp
= best_symtab
;
1546 *symaddrp
= best_sym_addr
;
1551 /* Find the source file and line number for a given PC value and SECTION.
1552 Return a structure containing a symtab pointer, a line number,
1553 and a pc range for the entire source line.
1554 The value's .pc field is NOT the specified pc.
1555 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1556 use the line that ends there. Otherwise, in that case, the line
1557 that begins there is used. */
1559 /* The big complication here is that a line may start in one file, and end just
1560 before the start of another file. This usually occurs when you #include
1561 code in the middle of a subroutine. To properly find the end of a line's PC
1562 range, we must search all symtabs associated with this compilation unit, and
1563 find the one whose first PC is closer than that of the next line in this
1566 /* If it's worth the effort, we could be using a binary search. */
1568 struct symtab_and_line
1569 find_pc_sect_line (CORE_ADDR pc
, struct sec
*section
, int notcurrent
)
1572 register struct linetable
*l
;
1575 register struct linetable_entry
*item
;
1576 struct symtab_and_line val
;
1577 struct blockvector
*bv
;
1578 struct minimal_symbol
*msymbol
;
1579 struct minimal_symbol
*mfunsym
;
1581 /* Info on best line seen so far, and where it starts, and its file. */
1583 struct linetable_entry
*best
= NULL
;
1584 CORE_ADDR best_end
= 0;
1585 struct symtab
*best_symtab
= 0;
1587 /* Store here the first line number
1588 of a file which contains the line at the smallest pc after PC.
1589 If we don't find a line whose range contains PC,
1590 we will use a line one less than this,
1591 with a range from the start of that file to the first line's pc. */
1592 struct linetable_entry
*alt
= NULL
;
1593 struct symtab
*alt_symtab
= 0;
1595 /* Info on best line seen in this file. */
1597 struct linetable_entry
*prev
;
1599 /* If this pc is not from the current frame,
1600 it is the address of the end of a call instruction.
1601 Quite likely that is the start of the following statement.
1602 But what we want is the statement containing the instruction.
1603 Fudge the pc to make sure we get that. */
1605 INIT_SAL (&val
); /* initialize to zeroes */
1610 /* elz: added this because this function returned the wrong
1611 information if the pc belongs to a stub (import/export)
1612 to call a shlib function. This stub would be anywhere between
1613 two functions in the target, and the line info was erroneously
1614 taken to be the one of the line before the pc.
1616 /* RT: Further explanation:
1618 * We have stubs (trampolines) inserted between procedures.
1620 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1621 * exists in the main image.
1623 * In the minimal symbol table, we have a bunch of symbols
1624 * sorted by start address. The stubs are marked as "trampoline",
1625 * the others appear as text. E.g.:
1627 * Minimal symbol table for main image
1628 * main: code for main (text symbol)
1629 * shr1: stub (trampoline symbol)
1630 * foo: code for foo (text symbol)
1632 * Minimal symbol table for "shr1" image:
1634 * shr1: code for shr1 (text symbol)
1637 * So the code below is trying to detect if we are in the stub
1638 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1639 * and if found, do the symbolization from the real-code address
1640 * rather than the stub address.
1642 * Assumptions being made about the minimal symbol table:
1643 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1644 * if we're really in the trampoline. If we're beyond it (say
1645 * we're in "foo" in the above example), it'll have a closer
1646 * symbol (the "foo" text symbol for example) and will not
1647 * return the trampoline.
1648 * 2. lookup_minimal_symbol_text() will find a real text symbol
1649 * corresponding to the trampoline, and whose address will
1650 * be different than the trampoline address. I put in a sanity
1651 * check for the address being the same, to avoid an
1652 * infinite recursion.
1654 msymbol
= lookup_minimal_symbol_by_pc (pc
);
1655 if (msymbol
!= NULL
)
1656 if (MSYMBOL_TYPE (msymbol
) == mst_solib_trampoline
)
1658 mfunsym
= lookup_minimal_symbol_text (SYMBOL_NAME (msymbol
), NULL
, NULL
);
1659 if (mfunsym
== NULL
)
1660 /* I eliminated this warning since it is coming out
1661 * in the following situation:
1662 * gdb shmain // test program with shared libraries
1663 * (gdb) break shr1 // function in shared lib
1664 * Warning: In stub for ...
1665 * In the above situation, the shared lib is not loaded yet,
1666 * so of course we can't find the real func/line info,
1667 * but the "break" still works, and the warning is annoying.
1668 * So I commented out the warning. RT */
1669 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1671 else if (SYMBOL_VALUE (mfunsym
) == SYMBOL_VALUE (msymbol
))
1672 /* Avoid infinite recursion */
1673 /* See above comment about why warning is commented out */
1674 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1677 return find_pc_line (SYMBOL_VALUE (mfunsym
), 0);
1681 s
= find_pc_sect_symtab (pc
, section
);
1684 /* if no symbol information, return previous pc */
1691 bv
= BLOCKVECTOR (s
);
1693 /* Look at all the symtabs that share this blockvector.
1694 They all have the same apriori range, that we found was right;
1695 but they have different line tables. */
1697 for (; s
&& BLOCKVECTOR (s
) == bv
; s
= s
->next
)
1699 /* Find the best line in this symtab. */
1706 /* I think len can be zero if the symtab lacks line numbers
1707 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1708 I'm not sure which, and maybe it depends on the symbol
1714 item
= l
->item
; /* Get first line info */
1716 /* Is this file's first line closer than the first lines of other files?
1717 If so, record this file, and its first line, as best alternate. */
1718 if (item
->pc
> pc
&& (!alt
|| item
->pc
< alt
->pc
))
1724 for (i
= 0; i
< len
; i
++, item
++)
1726 /* Leave prev pointing to the linetable entry for the last line
1727 that started at or before PC. */
1734 /* At this point, prev points at the line whose start addr is <= pc, and
1735 item points at the next line. If we ran off the end of the linetable
1736 (pc >= start of the last line), then prev == item. If pc < start of
1737 the first line, prev will not be set. */
1739 /* Is this file's best line closer than the best in the other files?
1740 If so, record this file, and its best line, as best so far. */
1742 if (prev
&& (!best
|| prev
->pc
> best
->pc
))
1747 /* Discard BEST_END if it's before the PC of the current BEST. */
1748 if (best_end
<= best
->pc
)
1752 /* If another line (denoted by ITEM) is in the linetable and its
1753 PC is after BEST's PC, but before the current BEST_END, then
1754 use ITEM's PC as the new best_end. */
1755 if (best
&& i
< len
&& item
->pc
> best
->pc
1756 && (best_end
== 0 || best_end
> item
->pc
))
1757 best_end
= item
->pc
;
1763 { /* If we didn't find any line # info, just
1769 val
.symtab
= alt_symtab
;
1770 val
.line
= alt
->line
- 1;
1772 /* Don't return line 0, that means that we didn't find the line. */
1776 val
.pc
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1782 val
.symtab
= best_symtab
;
1783 val
.line
= best
->line
;
1785 if (best_end
&& (!alt
|| best_end
< alt
->pc
))
1790 val
.end
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1792 val
.section
= section
;
1796 /* Backward compatibility (no section) */
1798 struct symtab_and_line
1799 find_pc_line (CORE_ADDR pc
, int notcurrent
)
1803 section
= find_pc_overlay (pc
);
1804 if (pc_in_unmapped_range (pc
, section
))
1805 pc
= overlay_mapped_address (pc
, section
);
1806 return find_pc_sect_line (pc
, section
, notcurrent
);
1809 /* Find line number LINE in any symtab whose name is the same as
1812 If found, return the symtab that contains the linetable in which it was
1813 found, set *INDEX to the index in the linetable of the best entry
1814 found, and set *EXACT_MATCH nonzero if the value returned is an
1817 If not found, return NULL. */
1820 find_line_symtab (struct symtab
*symtab
, int line
, int *index
, int *exact_match
)
1824 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1828 struct linetable
*best_linetable
;
1829 struct symtab
*best_symtab
;
1831 /* First try looking it up in the given symtab. */
1832 best_linetable
= LINETABLE (symtab
);
1833 best_symtab
= symtab
;
1834 best_index
= find_line_common (best_linetable
, line
, &exact
);
1835 if (best_index
< 0 || !exact
)
1837 /* Didn't find an exact match. So we better keep looking for
1838 another symtab with the same name. In the case of xcoff,
1839 multiple csects for one source file (produced by IBM's FORTRAN
1840 compiler) produce multiple symtabs (this is unavoidable
1841 assuming csects can be at arbitrary places in memory and that
1842 the GLOBAL_BLOCK of a symtab has a begin and end address). */
1844 /* BEST is the smallest linenumber > LINE so far seen,
1845 or 0 if none has been seen so far.
1846 BEST_INDEX and BEST_LINETABLE identify the item for it. */
1849 struct objfile
*objfile
;
1852 if (best_index
>= 0)
1853 best
= best_linetable
->item
[best_index
].line
;
1857 ALL_SYMTABS (objfile
, s
)
1859 struct linetable
*l
;
1862 if (!STREQ (symtab
->filename
, s
->filename
))
1865 ind
= find_line_common (l
, line
, &exact
);
1875 if (best
== 0 || l
->item
[ind
].line
< best
)
1877 best
= l
->item
[ind
].line
;
1890 *index
= best_index
;
1892 *exact_match
= exact
;
1897 /* Set the PC value for a given source file and line number and return true.
1898 Returns zero for invalid line number (and sets the PC to 0).
1899 The source file is specified with a struct symtab. */
1902 find_line_pc (struct symtab
*symtab
, int line
, CORE_ADDR
*pc
)
1904 struct linetable
*l
;
1911 symtab
= find_line_symtab (symtab
, line
, &ind
, NULL
);
1914 l
= LINETABLE (symtab
);
1915 *pc
= l
->item
[ind
].pc
;
1922 /* Find the range of pc values in a line.
1923 Store the starting pc of the line into *STARTPTR
1924 and the ending pc (start of next line) into *ENDPTR.
1925 Returns 1 to indicate success.
1926 Returns 0 if could not find the specified line. */
1929 find_line_pc_range (struct symtab_and_line sal
, CORE_ADDR
*startptr
,
1932 CORE_ADDR startaddr
;
1933 struct symtab_and_line found_sal
;
1936 if (startaddr
== 0 && !find_line_pc (sal
.symtab
, sal
.line
, &startaddr
))
1939 /* This whole function is based on address. For example, if line 10 has
1940 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
1941 "info line *0x123" should say the line goes from 0x100 to 0x200
1942 and "info line *0x355" should say the line goes from 0x300 to 0x400.
1943 This also insures that we never give a range like "starts at 0x134
1944 and ends at 0x12c". */
1946 found_sal
= find_pc_sect_line (startaddr
, sal
.section
, 0);
1947 if (found_sal
.line
!= sal
.line
)
1949 /* The specified line (sal) has zero bytes. */
1950 *startptr
= found_sal
.pc
;
1951 *endptr
= found_sal
.pc
;
1955 *startptr
= found_sal
.pc
;
1956 *endptr
= found_sal
.end
;
1961 /* Given a line table and a line number, return the index into the line
1962 table for the pc of the nearest line whose number is >= the specified one.
1963 Return -1 if none is found. The value is >= 0 if it is an index.
1965 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
1968 find_line_common (register struct linetable
*l
, register int lineno
,
1974 /* BEST is the smallest linenumber > LINENO so far seen,
1975 or 0 if none has been seen so far.
1976 BEST_INDEX identifies the item for it. */
1978 int best_index
= -1;
1987 for (i
= 0; i
< len
; i
++)
1989 register struct linetable_entry
*item
= &(l
->item
[i
]);
1991 if (item
->line
== lineno
)
1993 /* Return the first (lowest address) entry which matches. */
1998 if (item
->line
> lineno
&& (best
== 0 || item
->line
< best
))
2005 /* If we got here, we didn't get an exact match. */
2012 find_pc_line_pc_range (CORE_ADDR pc
, CORE_ADDR
*startptr
, CORE_ADDR
*endptr
)
2014 struct symtab_and_line sal
;
2015 sal
= find_pc_line (pc
, 0);
2018 return sal
.symtab
!= 0;
2021 /* Given a function symbol SYM, find the symtab and line for the start
2023 If the argument FUNFIRSTLINE is nonzero, we want the first line
2024 of real code inside the function. */
2026 struct symtab_and_line
2027 find_function_start_sal (struct symbol
*sym
, int funfirstline
)
2030 struct symtab_and_line sal
;
2032 pc
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
2033 fixup_symbol_section (sym
, NULL
);
2035 { /* skip "first line" of function (which is actually its prologue) */
2036 asection
*section
= SYMBOL_BFD_SECTION (sym
);
2037 /* If function is in an unmapped overlay, use its unmapped LMA
2038 address, so that SKIP_PROLOGUE has something unique to work on */
2039 if (section_is_overlay (section
) &&
2040 !section_is_mapped (section
))
2041 pc
= overlay_unmapped_address (pc
, section
);
2043 pc
+= FUNCTION_START_OFFSET
;
2044 pc
= SKIP_PROLOGUE (pc
);
2046 /* For overlays, map pc back into its mapped VMA range */
2047 pc
= overlay_mapped_address (pc
, section
);
2049 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2051 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2052 /* Convex: no need to suppress code on first line, if any */
2055 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2056 line is still part of the same function. */
2058 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym
)) <= sal
.end
2059 && sal
.end
< BLOCK_END (SYMBOL_BLOCK_VALUE (sym
)))
2061 /* First pc of next line */
2063 /* Recalculate the line number (might not be N+1). */
2064 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2072 /* If P is of the form "operator[ \t]+..." where `...' is
2073 some legitimate operator text, return a pointer to the
2074 beginning of the substring of the operator text.
2075 Otherwise, return "". */
2077 operator_chars (char *p
, char **end
)
2080 if (strncmp (p
, "operator", 8))
2084 /* Don't get faked out by `operator' being part of a longer
2086 if (isalpha (*p
) || *p
== '_' || *p
== '$' || *p
== '\0')
2089 /* Allow some whitespace between `operator' and the operator symbol. */
2090 while (*p
== ' ' || *p
== '\t')
2093 /* Recognize 'operator TYPENAME'. */
2095 if (isalpha (*p
) || *p
== '_' || *p
== '$')
2097 register char *q
= p
+ 1;
2098 while (isalnum (*q
) || *q
== '_' || *q
== '$')
2123 if (p
[1] == '=' || p
[1] == p
[0])
2134 error ("`operator ()' must be specified without whitespace in `()'");
2139 error ("`operator ?:' must be specified without whitespace in `?:'");
2144 error ("`operator []' must be specified without whitespace in `[]'");
2148 error ("`operator %s' not supported", p
);
2156 /* Slave routine for sources_info. Force line breaks at ,'s.
2157 NAME is the name to print and *FIRST is nonzero if this is the first
2158 name printed. Set *FIRST to zero. */
2160 output_source_filename (char *name
, int *first
)
2162 /* Table of files printed so far. Since a single source file can
2163 result in several partial symbol tables, we need to avoid printing
2164 it more than once. Note: if some of the psymtabs are read in and
2165 some are not, it gets printed both under "Source files for which
2166 symbols have been read" and "Source files for which symbols will
2167 be read in on demand". I consider this a reasonable way to deal
2168 with the situation. I'm not sure whether this can also happen for
2169 symtabs; it doesn't hurt to check. */
2170 static char **tab
= NULL
;
2171 /* Allocated size of tab in elements.
2172 Start with one 256-byte block (when using GNU malloc.c).
2173 24 is the malloc overhead when range checking is in effect. */
2174 static int tab_alloc_size
= (256 - 24) / sizeof (char *);
2175 /* Current size of tab in elements. */
2176 static int tab_cur_size
;
2183 tab
= (char **) xmalloc (tab_alloc_size
* sizeof (*tab
));
2187 /* Is NAME in tab? */
2188 for (p
= tab
; p
< tab
+ tab_cur_size
; p
++)
2189 if (STREQ (*p
, name
))
2190 /* Yes; don't print it again. */
2192 /* No; add it to tab. */
2193 if (tab_cur_size
== tab_alloc_size
)
2195 tab_alloc_size
*= 2;
2196 tab
= (char **) xrealloc ((char *) tab
, tab_alloc_size
* sizeof (*tab
));
2198 tab
[tab_cur_size
++] = name
;
2206 printf_filtered (", ");
2210 fputs_filtered (name
, gdb_stdout
);
2214 sources_info (char *ignore
, int from_tty
)
2216 register struct symtab
*s
;
2217 register struct partial_symtab
*ps
;
2218 register struct objfile
*objfile
;
2221 if (!have_full_symbols () && !have_partial_symbols ())
2223 error ("No symbol table is loaded. Use the \"file\" command.");
2226 printf_filtered ("Source files for which symbols have been read in:\n\n");
2229 ALL_SYMTABS (objfile
, s
)
2231 output_source_filename (s
->filename
, &first
);
2233 printf_filtered ("\n\n");
2235 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
2238 ALL_PSYMTABS (objfile
, ps
)
2242 output_source_filename (ps
->filename
, &first
);
2245 printf_filtered ("\n");
2249 file_matches (char *file
, char *files
[], int nfiles
)
2253 if (file
!= NULL
&& nfiles
!= 0)
2255 for (i
= 0; i
< nfiles
; i
++)
2257 if (strcmp (files
[i
], basename (file
)) == 0)
2261 else if (nfiles
== 0)
2266 /* Free any memory associated with a search. */
2268 free_search_symbols (struct symbol_search
*symbols
)
2270 struct symbol_search
*p
;
2271 struct symbol_search
*next
;
2273 for (p
= symbols
; p
!= NULL
; p
= next
)
2281 do_free_search_symbols_cleanup (void *symbols
)
2283 free_search_symbols (symbols
);
2287 make_cleanup_free_search_symbols (struct symbol_search
*symbols
)
2289 return make_cleanup (do_free_search_symbols_cleanup
, symbols
);
2293 /* Search the symbol table for matches to the regular expression REGEXP,
2294 returning the results in *MATCHES.
2296 Only symbols of KIND are searched:
2297 FUNCTIONS_NAMESPACE - search all functions
2298 TYPES_NAMESPACE - search all type names
2299 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
2300 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
2301 and constants (enums)
2303 free_search_symbols should be called when *MATCHES is no longer needed.
2306 search_symbols (char *regexp
, namespace_enum kind
, int nfiles
, char *files
[],
2307 struct symbol_search
**matches
)
2309 register struct symtab
*s
;
2310 register struct partial_symtab
*ps
;
2311 register struct blockvector
*bv
;
2312 struct blockvector
*prev_bv
= 0;
2313 register struct block
*b
;
2316 register struct symbol
*sym
;
2317 struct partial_symbol
**psym
;
2318 struct objfile
*objfile
;
2319 struct minimal_symbol
*msymbol
;
2322 static enum minimal_symbol_type types
[]
2324 {mst_data
, mst_text
, mst_abs
, mst_unknown
};
2325 static enum minimal_symbol_type types2
[]
2327 {mst_bss
, mst_file_text
, mst_abs
, mst_unknown
};
2328 static enum minimal_symbol_type types3
[]
2330 {mst_file_data
, mst_solib_trampoline
, mst_abs
, mst_unknown
};
2331 static enum minimal_symbol_type types4
[]
2333 {mst_file_bss
, mst_text
, mst_abs
, mst_unknown
};
2334 enum minimal_symbol_type ourtype
;
2335 enum minimal_symbol_type ourtype2
;
2336 enum minimal_symbol_type ourtype3
;
2337 enum minimal_symbol_type ourtype4
;
2338 struct symbol_search
*sr
;
2339 struct symbol_search
*psr
;
2340 struct symbol_search
*tail
;
2341 struct cleanup
*old_chain
= NULL
;
2343 if (kind
< VARIABLES_NAMESPACE
)
2344 error ("must search on specific namespace");
2346 ourtype
= types
[(int) (kind
- VARIABLES_NAMESPACE
)];
2347 ourtype2
= types2
[(int) (kind
- VARIABLES_NAMESPACE
)];
2348 ourtype3
= types3
[(int) (kind
- VARIABLES_NAMESPACE
)];
2349 ourtype4
= types4
[(int) (kind
- VARIABLES_NAMESPACE
)];
2351 sr
= *matches
= NULL
;
2356 /* Make sure spacing is right for C++ operators.
2357 This is just a courtesy to make the matching less sensitive
2358 to how many spaces the user leaves between 'operator'
2359 and <TYPENAME> or <OPERATOR>. */
2361 char *opname
= operator_chars (regexp
, &opend
);
2364 int fix
= -1; /* -1 means ok; otherwise number of spaces needed. */
2365 if (isalpha (*opname
) || *opname
== '_' || *opname
== '$')
2367 /* There should 1 space between 'operator' and 'TYPENAME'. */
2368 if (opname
[-1] != ' ' || opname
[-2] == ' ')
2373 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
2374 if (opname
[-1] == ' ')
2377 /* If wrong number of spaces, fix it. */
2380 char *tmp
= (char *) alloca (opend
- opname
+ 10);
2381 sprintf (tmp
, "operator%.*s%s", fix
, " ", opname
);
2386 if (0 != (val
= re_comp (regexp
)))
2387 error ("Invalid regexp (%s): %s", val
, regexp
);
2390 /* Search through the partial symtabs *first* for all symbols
2391 matching the regexp. That way we don't have to reproduce all of
2392 the machinery below. */
2394 ALL_PSYMTABS (objfile
, ps
)
2396 struct partial_symbol
**bound
, **gbound
, **sbound
;
2402 gbound
= objfile
->global_psymbols
.list
+ ps
->globals_offset
+ ps
->n_global_syms
;
2403 sbound
= objfile
->static_psymbols
.list
+ ps
->statics_offset
+ ps
->n_static_syms
;
2406 /* Go through all of the symbols stored in a partial
2407 symtab in one loop. */
2408 psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
2413 if (bound
== gbound
&& ps
->n_static_syms
!= 0)
2415 psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
2426 /* If it would match (logic taken from loop below)
2427 load the file and go on to the next one */
2428 if (file_matches (ps
->filename
, files
, nfiles
)
2429 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (*psym
))
2430 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (*psym
) != LOC_TYPEDEF
2431 && SYMBOL_CLASS (*psym
) != LOC_BLOCK
)
2432 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
)
2433 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_TYPEDEF
)
2434 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
))))
2436 PSYMTAB_TO_SYMTAB (ps
);
2444 /* Here, we search through the minimal symbol tables for functions
2445 and variables that match, and force their symbols to be read.
2446 This is in particular necessary for demangled variable names,
2447 which are no longer put into the partial symbol tables.
2448 The symbol will then be found during the scan of symtabs below.
2450 For functions, find_pc_symtab should succeed if we have debug info
2451 for the function, for variables we have to call lookup_symbol
2452 to determine if the variable has debug info.
2453 If the lookup fails, set found_misc so that we will rescan to print
2454 any matching symbols without debug info.
2457 if (nfiles
== 0 && (kind
== VARIABLES_NAMESPACE
|| kind
== FUNCTIONS_NAMESPACE
))
2459 ALL_MSYMBOLS (objfile
, msymbol
)
2461 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
2462 MSYMBOL_TYPE (msymbol
) == ourtype2
||
2463 MSYMBOL_TYPE (msymbol
) == ourtype3
||
2464 MSYMBOL_TYPE (msymbol
) == ourtype4
)
2466 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
2468 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
)))
2470 if (kind
== FUNCTIONS_NAMESPACE
2471 || lookup_symbol (SYMBOL_NAME (msymbol
),
2472 (struct block
*) NULL
,
2474 0, (struct symtab
**) NULL
) == NULL
)
2482 ALL_SYMTABS (objfile
, s
)
2484 bv
= BLOCKVECTOR (s
);
2485 /* Often many files share a blockvector.
2486 Scan each blockvector only once so that
2487 we don't get every symbol many times.
2488 It happens that the first symtab in the list
2489 for any given blockvector is the main file. */
2491 for (i
= GLOBAL_BLOCK
; i
<= STATIC_BLOCK
; i
++)
2493 b
= BLOCKVECTOR_BLOCK (bv
, i
);
2494 /* Skip the sort if this block is always sorted. */
2495 if (!BLOCK_SHOULD_SORT (b
))
2496 sort_block_syms (b
);
2497 for (j
= 0; j
< BLOCK_NSYMS (b
); j
++)
2500 sym
= BLOCK_SYM (b
, j
);
2501 if (file_matches (s
->filename
, files
, nfiles
)
2502 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (sym
))
2503 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (sym
) != LOC_TYPEDEF
2504 && SYMBOL_CLASS (sym
) != LOC_BLOCK
2505 && SYMBOL_CLASS (sym
) != LOC_CONST
)
2506 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
)
2507 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
2508 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
))))
2511 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
2515 psr
->msymbol
= NULL
;
2520 old_chain
= make_cleanup_free_search_symbols (sr
);
2531 /* If there are no eyes, avoid all contact. I mean, if there are
2532 no debug symbols, then print directly from the msymbol_vector. */
2534 if (found_misc
|| kind
!= FUNCTIONS_NAMESPACE
)
2536 ALL_MSYMBOLS (objfile
, msymbol
)
2538 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
2539 MSYMBOL_TYPE (msymbol
) == ourtype2
||
2540 MSYMBOL_TYPE (msymbol
) == ourtype3
||
2541 MSYMBOL_TYPE (msymbol
) == ourtype4
)
2543 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
2545 /* Functions: Look up by address. */
2546 if (kind
!= FUNCTIONS_NAMESPACE
||
2547 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
))))
2549 /* Variables/Absolutes: Look up by name */
2550 if (lookup_symbol (SYMBOL_NAME (msymbol
),
2551 (struct block
*) NULL
, VAR_NAMESPACE
,
2552 0, (struct symtab
**) NULL
) == NULL
)
2555 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
2557 psr
->msymbol
= msymbol
;
2564 old_chain
= make_cleanup_free_search_symbols (sr
);
2578 discard_cleanups (old_chain
);
2581 /* Helper function for symtab_symbol_info, this function uses
2582 the data returned from search_symbols() to print information
2583 regarding the match to gdb_stdout.
2586 print_symbol_info (namespace_enum kind
, struct symtab
*s
, struct symbol
*sym
,
2587 int block
, char *last
)
2589 if (last
== NULL
|| strcmp (last
, s
->filename
) != 0)
2591 fputs_filtered ("\nFile ", gdb_stdout
);
2592 fputs_filtered (s
->filename
, gdb_stdout
);
2593 fputs_filtered (":\n", gdb_stdout
);
2596 if (kind
!= TYPES_NAMESPACE
&& block
== STATIC_BLOCK
)
2597 printf_filtered ("static ");
2599 /* Typedef that is not a C++ class */
2600 if (kind
== TYPES_NAMESPACE
2601 && SYMBOL_NAMESPACE (sym
) != STRUCT_NAMESPACE
)
2602 typedef_print (SYMBOL_TYPE (sym
), sym
, gdb_stdout
);
2603 /* variable, func, or typedef-that-is-c++-class */
2604 else if (kind
< TYPES_NAMESPACE
||
2605 (kind
== TYPES_NAMESPACE
&&
2606 SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
))
2608 type_print (SYMBOL_TYPE (sym
),
2609 (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
2610 ? "" : SYMBOL_SOURCE_NAME (sym
)),
2613 printf_filtered (";\n");
2618 /* Tiemann says: "info methods was never implemented." */
2619 char *demangled_name
;
2620 c_type_print_base (TYPE_FN_FIELD_TYPE (t
, block
),
2622 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t
, block
),
2624 if (TYPE_FN_FIELD_STUB (t
, block
))
2625 check_stub_method (TYPE_DOMAIN_TYPE (type
), j
, block
);
2627 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t
, block
),
2628 DMGL_ANSI
| DMGL_PARAMS
);
2629 if (demangled_name
== NULL
)
2630 fprintf_filtered (stream
, "<badly mangled name %s>",
2631 TYPE_FN_FIELD_PHYSNAME (t
, block
));
2634 fputs_filtered (demangled_name
, stream
);
2635 xfree (demangled_name
);
2641 /* This help function for symtab_symbol_info() prints information
2642 for non-debugging symbols to gdb_stdout.
2645 print_msymbol_info (struct minimal_symbol
*msymbol
)
2649 if (TARGET_ADDR_BIT
<= 32)
2650 tmp
= longest_local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol
)
2651 & (CORE_ADDR
) 0xffffffff,
2654 tmp
= longest_local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol
),
2656 printf_filtered ("%s %s\n",
2657 tmp
, SYMBOL_SOURCE_NAME (msymbol
));
2660 /* This is the guts of the commands "info functions", "info types", and
2661 "info variables". It calls search_symbols to find all matches and then
2662 print_[m]symbol_info to print out some useful information about the
2666 symtab_symbol_info (char *regexp
, namespace_enum kind
, int from_tty
)
2668 static char *classnames
[]
2670 {"variable", "function", "type", "method"};
2671 struct symbol_search
*symbols
;
2672 struct symbol_search
*p
;
2673 struct cleanup
*old_chain
;
2674 char *last_filename
= NULL
;
2677 /* must make sure that if we're interrupted, symbols gets freed */
2678 search_symbols (regexp
, kind
, 0, (char **) NULL
, &symbols
);
2679 old_chain
= make_cleanup_free_search_symbols (symbols
);
2681 printf_filtered (regexp
2682 ? "All %ss matching regular expression \"%s\":\n"
2683 : "All defined %ss:\n",
2684 classnames
[(int) (kind
- VARIABLES_NAMESPACE
)], regexp
);
2686 for (p
= symbols
; p
!= NULL
; p
= p
->next
)
2690 if (p
->msymbol
!= NULL
)
2694 printf_filtered ("\nNon-debugging symbols:\n");
2697 print_msymbol_info (p
->msymbol
);
2701 print_symbol_info (kind
,
2706 last_filename
= p
->symtab
->filename
;
2710 do_cleanups (old_chain
);
2714 variables_info (char *regexp
, int from_tty
)
2716 symtab_symbol_info (regexp
, VARIABLES_NAMESPACE
, from_tty
);
2720 functions_info (char *regexp
, int from_tty
)
2722 symtab_symbol_info (regexp
, FUNCTIONS_NAMESPACE
, from_tty
);
2727 types_info (char *regexp
, int from_tty
)
2729 symtab_symbol_info (regexp
, TYPES_NAMESPACE
, from_tty
);
2733 /* Tiemann says: "info methods was never implemented." */
2735 methods_info (char *regexp
)
2737 symtab_symbol_info (regexp
, METHODS_NAMESPACE
, 0, from_tty
);
2741 /* Breakpoint all functions matching regular expression. */
2744 rbreak_command_wrapper (char *regexp
, int from_tty
)
2746 rbreak_command (regexp
, from_tty
);
2750 rbreak_command (char *regexp
, int from_tty
)
2752 struct symbol_search
*ss
;
2753 struct symbol_search
*p
;
2754 struct cleanup
*old_chain
;
2756 search_symbols (regexp
, FUNCTIONS_NAMESPACE
, 0, (char **) NULL
, &ss
);
2757 old_chain
= make_cleanup_free_search_symbols (ss
);
2759 for (p
= ss
; p
!= NULL
; p
= p
->next
)
2761 if (p
->msymbol
== NULL
)
2763 char *string
= (char *) alloca (strlen (p
->symtab
->filename
)
2764 + strlen (SYMBOL_NAME (p
->symbol
))
2766 strcpy (string
, p
->symtab
->filename
);
2767 strcat (string
, ":'");
2768 strcat (string
, SYMBOL_NAME (p
->symbol
));
2769 strcat (string
, "'");
2770 break_command (string
, from_tty
);
2771 print_symbol_info (FUNCTIONS_NAMESPACE
,
2775 p
->symtab
->filename
);
2779 break_command (SYMBOL_NAME (p
->msymbol
), from_tty
);
2780 printf_filtered ("<function, no debug info> %s;\n",
2781 SYMBOL_SOURCE_NAME (p
->msymbol
));
2785 do_cleanups (old_chain
);
2789 /* Return Nonzero if block a is lexically nested within block b,
2790 or if a and b have the same pc range.
2791 Return zero otherwise. */
2793 contained_in (struct block
*a
, struct block
*b
)
2797 return BLOCK_START (a
) >= BLOCK_START (b
)
2798 && BLOCK_END (a
) <= BLOCK_END (b
);
2802 /* Helper routine for make_symbol_completion_list. */
2804 static int return_val_size
;
2805 static int return_val_index
;
2806 static char **return_val
;
2808 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
2810 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
2811 /* Put only the mangled name on the list. */ \
2812 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
2813 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
2814 completion_list_add_name \
2815 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
2817 completion_list_add_name \
2818 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
2821 /* Test to see if the symbol specified by SYMNAME (which is already
2822 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
2823 characters. If so, add it to the current completion list. */
2826 completion_list_add_name (char *symname
, char *sym_text
, int sym_text_len
,
2827 char *text
, char *word
)
2832 /* clip symbols that cannot match */
2834 if (strncmp (symname
, sym_text
, sym_text_len
) != 0)
2839 /* We have a match for a completion, so add SYMNAME to the current list
2840 of matches. Note that the name is moved to freshly malloc'd space. */
2844 if (word
== sym_text
)
2846 new = xmalloc (strlen (symname
) + 5);
2847 strcpy (new, symname
);
2849 else if (word
> sym_text
)
2851 /* Return some portion of symname. */
2852 new = xmalloc (strlen (symname
) + 5);
2853 strcpy (new, symname
+ (word
- sym_text
));
2857 /* Return some of SYM_TEXT plus symname. */
2858 new = xmalloc (strlen (symname
) + (sym_text
- word
) + 5);
2859 strncpy (new, word
, sym_text
- word
);
2860 new[sym_text
- word
] = '\0';
2861 strcat (new, symname
);
2864 if (return_val_index
+ 3 > return_val_size
)
2866 newsize
= (return_val_size
*= 2) * sizeof (char *);
2867 return_val
= (char **) xrealloc ((char *) return_val
, newsize
);
2869 return_val
[return_val_index
++] = new;
2870 return_val
[return_val_index
] = NULL
;
2874 /* Return a NULL terminated array of all symbols (regardless of class) which
2875 begin by matching TEXT. If the answer is no symbols, then the return value
2876 is an array which contains only a NULL pointer.
2878 Problem: All of the symbols have to be copied because readline frees them.
2879 I'm not going to worry about this; hopefully there won't be that many. */
2882 make_symbol_completion_list (char *text
, char *word
)
2884 register struct symbol
*sym
;
2885 register struct symtab
*s
;
2886 register struct partial_symtab
*ps
;
2887 register struct minimal_symbol
*msymbol
;
2888 register struct objfile
*objfile
;
2889 register struct block
*b
, *surrounding_static_block
= 0;
2891 struct partial_symbol
**psym
;
2892 /* The symbol we are completing on. Points in same buffer as text. */
2894 /* Length of sym_text. */
2897 /* Now look for the symbol we are supposed to complete on.
2898 FIXME: This should be language-specific. */
2902 char *quote_pos
= NULL
;
2904 /* First see if this is a quoted string. */
2906 for (p
= text
; *p
!= '\0'; ++p
)
2908 if (quote_found
!= '\0')
2910 if (*p
== quote_found
)
2911 /* Found close quote. */
2913 else if (*p
== '\\' && p
[1] == quote_found
)
2914 /* A backslash followed by the quote character
2915 doesn't end the string. */
2918 else if (*p
== '\'' || *p
== '"')
2924 if (quote_found
== '\'')
2925 /* A string within single quotes can be a symbol, so complete on it. */
2926 sym_text
= quote_pos
+ 1;
2927 else if (quote_found
== '"')
2928 /* A double-quoted string is never a symbol, nor does it make sense
2929 to complete it any other way. */
2933 /* It is not a quoted string. Break it based on the characters
2934 which are in symbols. */
2937 if (isalnum (p
[-1]) || p
[-1] == '_' || p
[-1] == '\0')
2946 sym_text_len
= strlen (sym_text
);
2948 return_val_size
= 100;
2949 return_val_index
= 0;
2950 return_val
= (char **) xmalloc ((return_val_size
+ 1) * sizeof (char *));
2951 return_val
[0] = NULL
;
2953 /* Look through the partial symtabs for all symbols which begin
2954 by matching SYM_TEXT. Add each one that you find to the list. */
2956 ALL_PSYMTABS (objfile
, ps
)
2958 /* If the psymtab's been read in we'll get it when we search
2959 through the blockvector. */
2963 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
2964 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
2965 + ps
->n_global_syms
);
2968 /* If interrupted, then quit. */
2970 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
2973 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
2974 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
2975 + ps
->n_static_syms
);
2979 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
2983 /* At this point scan through the misc symbol vectors and add each
2984 symbol you find to the list. Eventually we want to ignore
2985 anything that isn't a text symbol (everything else will be
2986 handled by the psymtab code above). */
2988 ALL_MSYMBOLS (objfile
, msymbol
)
2991 COMPLETION_LIST_ADD_SYMBOL (msymbol
, sym_text
, sym_text_len
, text
, word
);
2994 /* Search upwards from currently selected frame (so that we can
2995 complete on local vars. */
2997 for (b
= get_selected_block (); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
2999 if (!BLOCK_SUPERBLOCK (b
))
3001 surrounding_static_block
= b
; /* For elmin of dups */
3004 /* Also catch fields of types defined in this places which match our
3005 text string. Only complete on types visible from current context. */
3007 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3009 sym
= BLOCK_SYM (b
, i
);
3010 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3011 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
3013 struct type
*t
= SYMBOL_TYPE (sym
);
3014 enum type_code c
= TYPE_CODE (t
);
3016 if (c
== TYPE_CODE_UNION
|| c
== TYPE_CODE_STRUCT
)
3018 for (j
= TYPE_N_BASECLASSES (t
); j
< TYPE_NFIELDS (t
); j
++)
3020 if (TYPE_FIELD_NAME (t
, j
))
3022 completion_list_add_name (TYPE_FIELD_NAME (t
, j
),
3023 sym_text
, sym_text_len
, text
, word
);
3031 /* Go through the symtabs and check the externs and statics for
3032 symbols which match. */
3034 ALL_SYMTABS (objfile
, s
)
3037 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3038 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3040 sym
= BLOCK_SYM (b
, i
);
3041 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3045 ALL_SYMTABS (objfile
, s
)
3048 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3049 /* Don't do this block twice. */
3050 if (b
== surrounding_static_block
)
3052 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3054 sym
= BLOCK_SYM (b
, i
);
3055 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3059 return (return_val
);
3062 /* Determine if PC is in the prologue of a function. The prologue is the area
3063 between the first instruction of a function, and the first executable line.
3064 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
3066 If non-zero, func_start is where we think the prologue starts, possibly
3067 by previous examination of symbol table information.
3071 in_prologue (CORE_ADDR pc
, CORE_ADDR func_start
)
3073 struct symtab_and_line sal
;
3074 CORE_ADDR func_addr
, func_end
;
3076 /* We have several sources of information we can consult to figure
3078 - Compilers usually emit line number info that marks the prologue
3079 as its own "source line". So the ending address of that "line"
3080 is the end of the prologue. If available, this is the most
3082 - The minimal symbols and partial symbols, which can usually tell
3083 us the starting and ending addresses of a function.
3084 - If we know the function's start address, we can call the
3085 architecture-defined SKIP_PROLOGUE function to analyze the
3086 instruction stream and guess where the prologue ends.
3087 - Our `func_start' argument; if non-zero, this is the caller's
3088 best guess as to the function's entry point. At the time of
3089 this writing, handle_inferior_event doesn't get this right, so
3090 it should be our last resort. */
3092 /* Consult the partial symbol table, to find which function
3094 if (! find_pc_partial_function (pc
, NULL
, &func_addr
, &func_end
))
3096 CORE_ADDR prologue_end
;
3098 /* We don't even have minsym information, so fall back to using
3099 func_start, if given. */
3101 return 1; /* We *might* be in a prologue. */
3103 prologue_end
= SKIP_PROLOGUE (func_start
);
3105 return func_start
<= pc
&& pc
< prologue_end
;
3108 /* If we have line number information for the function, that's
3109 usually pretty reliable. */
3110 sal
= find_pc_line (func_addr
, 0);
3112 /* Now sal describes the source line at the function's entry point,
3113 which (by convention) is the prologue. The end of that "line",
3114 sal.end, is the end of the prologue.
3116 Note that, for functions whose source code is all on a single
3117 line, the line number information doesn't always end up this way.
3118 So we must verify that our purported end-of-prologue address is
3119 *within* the function, not at its start or end. */
3121 || sal
.end
<= func_addr
3122 || func_end
<= sal
.end
)
3124 /* We don't have any good line number info, so use the minsym
3125 information, together with the architecture-specific prologue
3127 CORE_ADDR prologue_end
= SKIP_PROLOGUE (func_addr
);
3129 return func_addr
<= pc
&& pc
< prologue_end
;
3132 /* We have line number info, and it looks good. */
3133 return func_addr
<= pc
&& pc
< sal
.end
;
3137 /* Begin overload resolution functions */
3138 /* Helper routine for make_symbol_completion_list. */
3140 static int sym_return_val_size
;
3141 static int sym_return_val_index
;
3142 static struct symbol
**sym_return_val
;
3144 /* Test to see if the symbol specified by SYMNAME (which is already
3145 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3146 characters. If so, add it to the current completion list. */
3149 overload_list_add_symbol (struct symbol
*sym
, char *oload_name
)
3154 /* Get the demangled name without parameters */
3155 char *sym_name
= cplus_demangle (SYMBOL_NAME (sym
), DMGL_ARM
| DMGL_ANSI
);
3158 sym_name
= (char *) xmalloc (strlen (SYMBOL_NAME (sym
)) + 1);
3159 strcpy (sym_name
, SYMBOL_NAME (sym
));
3162 /* skip symbols that cannot match */
3163 if (strcmp (sym_name
, oload_name
) != 0)
3169 /* If there is no type information, we can't do anything, so skip */
3170 if (SYMBOL_TYPE (sym
) == NULL
)
3173 /* skip any symbols that we've already considered. */
3174 for (i
= 0; i
< sym_return_val_index
; ++i
)
3175 if (!strcmp (SYMBOL_NAME (sym
), SYMBOL_NAME (sym_return_val
[i
])))
3178 /* We have a match for an overload instance, so add SYM to the current list
3179 * of overload instances */
3180 if (sym_return_val_index
+ 3 > sym_return_val_size
)
3182 newsize
= (sym_return_val_size
*= 2) * sizeof (struct symbol
*);
3183 sym_return_val
= (struct symbol
**) xrealloc ((char *) sym_return_val
, newsize
);
3185 sym_return_val
[sym_return_val_index
++] = sym
;
3186 sym_return_val
[sym_return_val_index
] = NULL
;
3191 /* Return a null-terminated list of pointers to function symbols that
3192 * match name of the supplied symbol FSYM.
3193 * This is used in finding all overloaded instances of a function name.
3194 * This has been modified from make_symbol_completion_list. */
3198 make_symbol_overload_list (struct symbol
*fsym
)
3200 register struct symbol
*sym
;
3201 register struct symtab
*s
;
3202 register struct partial_symtab
*ps
;
3203 register struct objfile
*objfile
;
3204 register struct block
*b
, *surrounding_static_block
= 0;
3206 /* The name we are completing on. */
3207 char *oload_name
= NULL
;
3208 /* Length of name. */
3209 int oload_name_len
= 0;
3211 /* Look for the symbol we are supposed to complete on.
3212 * FIXME: This should be language-specific. */
3214 oload_name
= cplus_demangle (SYMBOL_NAME (fsym
), DMGL_ARM
| DMGL_ANSI
);
3217 oload_name
= (char *) xmalloc (strlen (SYMBOL_NAME (fsym
)) + 1);
3218 strcpy (oload_name
, SYMBOL_NAME (fsym
));
3220 oload_name_len
= strlen (oload_name
);
3222 sym_return_val_size
= 100;
3223 sym_return_val_index
= 0;
3224 sym_return_val
= (struct symbol
**) xmalloc ((sym_return_val_size
+ 1) * sizeof (struct symbol
*));
3225 sym_return_val
[0] = NULL
;
3227 /* Look through the partial symtabs for all symbols which begin
3228 by matching OLOAD_NAME. Make sure we read that symbol table in. */
3230 ALL_PSYMTABS (objfile
, ps
)
3232 struct partial_symbol
**psym
;
3234 /* If the psymtab's been read in we'll get it when we search
3235 through the blockvector. */
3239 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
3240 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
3241 + ps
->n_global_syms
);
3244 /* If interrupted, then quit. */
3246 /* This will cause the symbol table to be read if it has not yet been */
3247 s
= PSYMTAB_TO_SYMTAB (ps
);
3250 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
3251 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
3252 + ps
->n_static_syms
);
3256 /* This will cause the symbol table to be read if it has not yet been */
3257 s
= PSYMTAB_TO_SYMTAB (ps
);
3261 /* Search upwards from currently selected frame (so that we can
3262 complete on local vars. */
3264 for (b
= get_selected_block (); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
3266 if (!BLOCK_SUPERBLOCK (b
))
3268 surrounding_static_block
= b
; /* For elimination of dups */
3271 /* Also catch fields of types defined in this places which match our
3272 text string. Only complete on types visible from current context. */
3274 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3276 sym
= BLOCK_SYM (b
, i
);
3277 overload_list_add_symbol (sym
, oload_name
);
3281 /* Go through the symtabs and check the externs and statics for
3282 symbols which match. */
3284 ALL_SYMTABS (objfile
, s
)
3287 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3288 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3290 sym
= BLOCK_SYM (b
, i
);
3291 overload_list_add_symbol (sym
, oload_name
);
3295 ALL_SYMTABS (objfile
, s
)
3298 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3299 /* Don't do this block twice. */
3300 if (b
== surrounding_static_block
)
3302 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3304 sym
= BLOCK_SYM (b
, i
);
3305 overload_list_add_symbol (sym
, oload_name
);
3311 return (sym_return_val
);
3314 /* End of overload resolution functions */
3316 struct symtabs_and_lines
3317 decode_line_spec (char *string
, int funfirstline
)
3319 struct symtabs_and_lines sals
;
3321 error ("Empty line specification.");
3322 sals
= decode_line_1 (&string
, funfirstline
,
3323 current_source_symtab
, current_source_line
,
3326 error ("Junk at end of line specification: %s", string
);
3331 _initialize_symtab (void)
3333 add_info ("variables", variables_info
,
3334 "All global and static variable names, or those matching REGEXP.");
3336 add_com ("whereis", class_info
, variables_info
,
3337 "All global and static variable names, or those matching REGEXP.");
3339 add_info ("functions", functions_info
,
3340 "All function names, or those matching REGEXP.");
3343 /* FIXME: This command has at least the following problems:
3344 1. It prints builtin types (in a very strange and confusing fashion).
3345 2. It doesn't print right, e.g. with
3346 typedef struct foo *FOO
3347 type_print prints "FOO" when we want to make it (in this situation)
3348 print "struct foo *".
3349 I also think "ptype" or "whatis" is more likely to be useful (but if
3350 there is much disagreement "info types" can be fixed). */
3351 add_info ("types", types_info
,
3352 "All type names, or those matching REGEXP.");
3355 add_info ("methods", methods_info
,
3356 "All method names, or those matching REGEXP::REGEXP.\n\
3357 If the class qualifier is omitted, it is assumed to be the current scope.\n\
3358 If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
3361 add_info ("sources", sources_info
,
3362 "Source files in the program.");
3364 add_com ("rbreak", class_breakpoint
, rbreak_command
,
3365 "Set a breakpoint for all functions matching REGEXP.");
3369 add_com ("lf", class_info
, sources_info
, "Source files in the program");
3370 add_com ("lg", class_info
, variables_info
,
3371 "All global and static variable names, or those matching REGEXP.");
3374 /* Initialize the one built-in type that isn't language dependent... */
3375 builtin_type_error
= init_type (TYPE_CODE_ERROR
, 0, 0,
3376 "<unknown type>", (struct objfile
*) NULL
);