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"
43 #include <sys/types.h>
45 #include "gdb_string.h"
49 /* Prototype for one function in parser-defs.h,
50 instead of including that entire file. */
52 extern char *find_template_name_end (char *);
54 /* Prototypes for local functions */
56 static void completion_list_add_name (char *, char *, int, char *, char *);
58 static void rbreak_command (char *, int);
60 static void types_info (char *, int);
62 static void functions_info (char *, int);
64 static void variables_info (char *, int);
66 static void sources_info (char *, int);
68 static void output_source_filename (char *, int *);
70 static int find_line_common (struct linetable
*, int, int *);
72 /* This one is used by linespec.c */
74 char *operator_chars (char *p
, char **end
);
76 static struct partial_symbol
*lookup_partial_symbol (struct partial_symtab
*,
80 static struct symtab
*lookup_symtab_1 (char *);
82 static struct symbol
*lookup_symbol_aux (const char *name
, const
83 struct block
*block
, const
84 namespace_enum
namespace, int
85 *is_a_field_of_this
, struct
89 static struct symbol
*find_active_alias (struct symbol
*sym
, CORE_ADDR addr
);
91 /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
92 /* Signals the presence of objects compiled by HP compilers */
93 int hp_som_som_object_present
= 0;
95 static void fixup_section (struct general_symbol_info
*, struct objfile
*);
97 static int file_matches (char *, char **, int);
99 static void print_symbol_info (namespace_enum
,
100 struct symtab
*, struct symbol
*, int, char *);
102 static void print_msymbol_info (struct minimal_symbol
*);
104 static void symtab_symbol_info (char *, namespace_enum
, int);
106 static void overload_list_add_symbol (struct symbol
*sym
, char *oload_name
);
108 void _initialize_symtab (void);
112 /* The single non-language-specific builtin type */
113 struct type
*builtin_type_error
;
115 /* Block in which the most recently searched-for symbol was found.
116 Might be better to make this a parameter to lookup_symbol and
119 const struct block
*block_found
;
121 /* While the C++ support is still in flux, issue a possibly helpful hint on
122 using the new command completion feature on single quoted demangled C++
123 symbols. Remove when loose ends are cleaned up. FIXME -fnf */
126 cplusplus_hint (char *name
)
128 while (*name
== '\'')
130 printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name
, name
);
131 printf_filtered ("(Note leading single quote.)\n");
134 /* Check for a symtab of a specific name; first in symtabs, then in
135 psymtabs. *If* there is no '/' in the name, a match after a '/'
136 in the symtab filename will also work. */
138 static struct symtab
*
139 lookup_symtab_1 (char *name
)
141 register struct symtab
*s
;
142 register struct partial_symtab
*ps
;
143 register char *slash
;
144 register struct objfile
*objfile
;
148 /* First, search for an exact match */
150 ALL_SYMTABS (objfile
, s
)
151 if (STREQ (name
, s
->filename
))
154 slash
= strchr (name
, '/');
156 /* Now, search for a matching tail (only if name doesn't have any dirs) */
159 ALL_SYMTABS (objfile
, s
)
161 char *p
= s
->filename
;
162 char *tail
= strrchr (p
, '/');
171 /* Same search rules as above apply here, but now we look thru the
174 ps
= lookup_partial_symtab (name
);
179 error ("Internal: readin %s pst for `%s' found when no symtab found.",
182 s
= PSYMTAB_TO_SYMTAB (ps
);
187 /* At this point, we have located the psymtab for this file, but
188 the conversion to a symtab has failed. This usually happens
189 when we are looking up an include file. In this case,
190 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
191 been created. So, we need to run through the symtabs again in
192 order to find the file.
193 XXX - This is a crock, and should be fixed inside of the the
194 symbol parsing routines. */
198 /* Lookup the symbol table of a source file named NAME. Try a couple
199 of variations if the first lookup doesn't work. */
202 lookup_symtab (char *name
)
204 register struct symtab
*s
;
209 s
= lookup_symtab_1 (name
);
214 /* This screws c-exp.y:yylex if there is both a type "tree" and a symtab
217 /* If name not found as specified, see if adding ".c" helps. */
218 /* Why is this? Is it just a user convenience? (If so, it's pretty
219 questionable in the presence of C++, FORTRAN, etc.). It's not in
222 copy
= (char *) alloca (strlen (name
) + 3);
225 s
= lookup_symtab_1 (copy
);
230 /* We didn't find anything; die. */
234 /* Lookup the partial symbol table of a source file named NAME.
235 *If* there is no '/' in the name, a match after a '/'
236 in the psymtab filename will also work. */
238 struct partial_symtab
*
239 lookup_partial_symtab (char *name
)
241 register struct partial_symtab
*pst
;
242 register struct objfile
*objfile
;
244 ALL_PSYMTABS (objfile
, pst
)
246 if (STREQ (name
, pst
->filename
))
252 /* Now, search for a matching tail (only if name doesn't have any dirs) */
254 if (!strchr (name
, '/'))
255 ALL_PSYMTABS (objfile
, pst
)
257 char *p
= pst
->filename
;
258 char *tail
= strrchr (p
, '/');
270 /* Mangle a GDB method stub type. This actually reassembles the pieces of the
271 full method name, which consist of the class name (from T), the unadorned
272 method name from METHOD_ID, and the signature for the specific overload,
273 specified by SIGNATURE_ID. Note that this function is g++ specific. */
276 gdb_mangle_name (struct type
*type
, int method_id
, int signature_id
)
278 int mangled_name_len
;
280 struct fn_field
*f
= TYPE_FN_FIELDLIST1 (type
, method_id
);
281 struct fn_field
*method
= &f
[signature_id
];
282 char *field_name
= TYPE_FN_FIELDLIST_NAME (type
, method_id
);
283 char *physname
= TYPE_FN_FIELD_PHYSNAME (f
, signature_id
);
284 char *newname
= type_name_no_tag (type
);
286 /* Does the form of physname indicate that it is the full mangled name
287 of a constructor (not just the args)? */
288 int is_full_physname_constructor
;
291 int is_destructor
= DESTRUCTOR_PREFIX_P (physname
);
292 /* Need a new type prefix. */
293 char *const_prefix
= method
->is_const
? "C" : "";
294 char *volatile_prefix
= method
->is_volatile
? "V" : "";
296 int len
= (newname
== NULL
? 0 : strlen (newname
));
298 if (OPNAME_PREFIX_P (field_name
))
299 return xstrdup (physname
);
301 is_full_physname_constructor
=
302 ((physname
[0] == '_' && physname
[1] == '_' &&
303 (isdigit (physname
[2]) || physname
[2] == 'Q' || physname
[2] == 't'))
304 || (strncmp (physname
, "__ct", 4) == 0));
307 is_full_physname_constructor
|| (newname
&& STREQ (field_name
, newname
));
310 is_destructor
= (strncmp (physname
, "__dt", 4) == 0);
312 if (is_destructor
|| is_full_physname_constructor
)
314 mangled_name
= (char *) xmalloc (strlen (physname
) + 1);
315 strcpy (mangled_name
, physname
);
321 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
323 else if (physname
[0] == 't' || physname
[0] == 'Q')
325 /* The physname for template and qualified methods already includes
327 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
333 sprintf (buf
, "__%s%s%d", const_prefix
, volatile_prefix
, len
);
335 mangled_name_len
= ((is_constructor
? 0 : strlen (field_name
))
336 + strlen (buf
) + len
+ strlen (physname
) + 1);
339 mangled_name
= (char *) xmalloc (mangled_name_len
);
341 mangled_name
[0] = '\0';
343 strcpy (mangled_name
, field_name
);
345 strcat (mangled_name
, buf
);
346 /* If the class doesn't have a name, i.e. newname NULL, then we just
347 mangle it using 0 for the length of the class. Thus it gets mangled
348 as something starting with `::' rather than `classname::'. */
350 strcat (mangled_name
, newname
);
352 strcat (mangled_name
, physname
);
353 return (mangled_name
);
358 /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
360 struct partial_symtab
*
361 find_pc_sect_psymtab (CORE_ADDR pc
, asection
*section
)
363 register struct partial_symtab
*pst
;
364 register struct objfile
*objfile
;
366 ALL_PSYMTABS (objfile
, pst
)
368 if (pc
>= pst
->textlow
&& pc
< pst
->texthigh
)
370 struct minimal_symbol
*msymbol
;
371 struct partial_symtab
*tpst
;
373 /* An objfile that has its functions reordered might have
374 many partial symbol tables containing the PC, but
375 we want the partial symbol table that contains the
376 function containing the PC. */
377 if (!(objfile
->flags
& OBJF_REORDERED
) &&
378 section
== 0) /* can't validate section this way */
381 msymbol
= lookup_minimal_symbol_by_pc_section (pc
, section
);
385 for (tpst
= pst
; tpst
!= NULL
; tpst
= tpst
->next
)
387 if (pc
>= tpst
->textlow
&& pc
< tpst
->texthigh
)
389 struct partial_symbol
*p
;
391 p
= find_pc_sect_psymbol (tpst
, pc
, section
);
393 && SYMBOL_VALUE_ADDRESS (p
)
394 == SYMBOL_VALUE_ADDRESS (msymbol
))
404 /* Find which partial symtab contains PC. Return 0 if none.
405 Backward compatibility, no section */
407 struct partial_symtab
*
408 find_pc_psymtab (CORE_ADDR pc
)
410 return find_pc_sect_psymtab (pc
, find_pc_mapped_section (pc
));
413 /* Find which partial symbol within a psymtab matches PC and SECTION.
414 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
416 struct partial_symbol
*
417 find_pc_sect_psymbol (struct partial_symtab
*psymtab
, CORE_ADDR pc
,
420 struct partial_symbol
*best
= NULL
, *p
, **pp
;
424 psymtab
= find_pc_sect_psymtab (pc
, section
);
428 /* Cope with programs that start at address 0 */
429 best_pc
= (psymtab
->textlow
!= 0) ? psymtab
->textlow
- 1 : 0;
431 /* Search the global symbols as well as the static symbols, so that
432 find_pc_partial_function doesn't use a minimal symbol and thus
433 cache a bad endaddr. */
434 for (pp
= psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
;
435 (pp
- (psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
)
436 < psymtab
->n_global_syms
);
440 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
441 && SYMBOL_CLASS (p
) == LOC_BLOCK
442 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
443 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
444 || (psymtab
->textlow
== 0
445 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
447 if (section
) /* match on a specific section */
449 fixup_psymbol_section (p
, psymtab
->objfile
);
450 if (SYMBOL_BFD_SECTION (p
) != section
)
453 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
458 for (pp
= psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
;
459 (pp
- (psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
)
460 < psymtab
->n_static_syms
);
464 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
465 && SYMBOL_CLASS (p
) == LOC_BLOCK
466 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
467 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
468 || (psymtab
->textlow
== 0
469 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
471 if (section
) /* match on a specific section */
473 fixup_psymbol_section (p
, psymtab
->objfile
);
474 if (SYMBOL_BFD_SECTION (p
) != section
)
477 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
485 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
486 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
488 struct partial_symbol
*
489 find_pc_psymbol (struct partial_symtab
*psymtab
, CORE_ADDR pc
)
491 return find_pc_sect_psymbol (psymtab
, pc
, find_pc_mapped_section (pc
));
494 /* Debug symbols usually don't have section information. We need to dig that
495 out of the minimal symbols and stash that in the debug symbol. */
498 fixup_section (struct general_symbol_info
*ginfo
, struct objfile
*objfile
)
500 struct minimal_symbol
*msym
;
501 msym
= lookup_minimal_symbol (ginfo
->name
, NULL
, objfile
);
505 ginfo
->bfd_section
= SYMBOL_BFD_SECTION (msym
);
506 ginfo
->section
= SYMBOL_SECTION (msym
);
511 fixup_symbol_section (struct symbol
*sym
, struct objfile
*objfile
)
516 if (SYMBOL_BFD_SECTION (sym
))
519 fixup_section (&sym
->ginfo
, objfile
);
524 struct partial_symbol
*
525 fixup_psymbol_section (struct partial_symbol
*psym
, struct objfile
*objfile
)
530 if (SYMBOL_BFD_SECTION (psym
))
533 fixup_section (&psym
->ginfo
, objfile
);
538 /* Find the definition for a specified symbol name NAME
539 in namespace NAMESPACE, visible from lexical block BLOCK.
540 Returns the struct symbol pointer, or zero if no symbol is found.
541 If SYMTAB is non-NULL, store the symbol table in which the
542 symbol was found there, or NULL if not found.
543 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
544 NAME is a field of the current implied argument `this'. If so set
545 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
546 BLOCK_FOUND is set to the block in which NAME is found (in the case of
547 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
549 /* This function has a bunch of loops in it and it would seem to be
550 attractive to put in some QUIT's (though I'm not really sure
551 whether it can run long enough to be really important). But there
552 are a few calls for which it would appear to be bad news to quit
553 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
554 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
555 code below which can error(), but that probably doesn't affect
556 these calls since they are looking for a known variable and thus
557 can probably assume it will never hit the C++ code). */
560 lookup_symbol (const char *name
, const struct block
*block
,
561 const namespace_enum
namespace, int *is_a_field_of_this
,
562 struct symtab
**symtab
)
564 char *modified_name
= NULL
;
565 char *modified_name2
= NULL
;
566 int needtofreename
= 0;
567 struct symbol
*returnval
;
569 if (case_sensitivity
== case_sensitive_off
)
575 copy
= (char *) alloca (len
+ 1);
576 for (i
= 0; i
< len
; i
++)
577 copy
[i
] = tolower (name
[i
]);
579 modified_name
= copy
;
582 modified_name
= (char *) name
;
584 /* If we are using C++ language, demangle the name before doing a lookup, so
585 we can always binary search. */
586 if (current_language
->la_language
== language_cplus
)
588 modified_name2
= cplus_demangle (modified_name
, DMGL_ANSI
| DMGL_PARAMS
);
591 modified_name
= modified_name2
;
596 returnval
= lookup_symbol_aux (modified_name
, block
, namespace,
597 is_a_field_of_this
, symtab
);
599 xfree (modified_name2
);
604 static struct symbol
*
605 lookup_symbol_aux (const char *name
, const struct block
*block
,
606 const namespace_enum
namespace, int *is_a_field_of_this
,
607 struct symtab
**symtab
)
609 register struct symbol
*sym
;
610 register struct symtab
*s
= NULL
;
611 register struct partial_symtab
*ps
;
612 register struct blockvector
*bv
;
613 register struct objfile
*objfile
= NULL
;
614 register struct block
*b
;
615 register struct minimal_symbol
*msymbol
;
618 /* Search specified block and its superiors. */
622 sym
= lookup_block_symbol (block
, name
, namespace);
628 /* Search the list of symtabs for one which contains the
629 address of the start of this block. */
630 ALL_SYMTABS (objfile
, s
)
632 bv
= BLOCKVECTOR (s
);
633 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
634 if (BLOCK_START (b
) <= BLOCK_START (block
)
635 && BLOCK_END (b
) > BLOCK_START (block
))
642 return fixup_symbol_section (sym
, objfile
);
644 block
= BLOCK_SUPERBLOCK (block
);
647 /* FIXME: this code is never executed--block is always NULL at this
648 point. What is it trying to do, anyway? We already should have
649 checked the STATIC_BLOCK above (it is the superblock of top-level
650 blocks). Why is VAR_NAMESPACE special-cased? */
651 /* Don't need to mess with the psymtabs; if we have a block,
652 that file is read in. If we don't, then we deal later with
653 all the psymtab stuff that needs checking. */
654 /* Note (RT): The following never-executed code looks unnecessary to me also.
655 * If we change the code to use the original (passed-in)
656 * value of 'block', we could cause it to execute, but then what
657 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
658 * 'block' was already searched by the above code. And the STATIC_BLOCK's
659 * of *other* symtabs (those files not containing 'block' lexically)
660 * should not contain 'block' address-wise. So we wouldn't expect this
661 * code to find any 'sym''s that were not found above. I vote for
662 * deleting the following paragraph of code.
664 if (namespace == VAR_NAMESPACE
&& block
!= NULL
)
667 /* Find the right symtab. */
668 ALL_SYMTABS (objfile
, s
)
670 bv
= BLOCKVECTOR (s
);
671 b
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
672 if (BLOCK_START (b
) <= BLOCK_START (block
)
673 && BLOCK_END (b
) > BLOCK_START (block
))
675 sym
= lookup_block_symbol (b
, name
, VAR_NAMESPACE
);
681 return fixup_symbol_section (sym
, objfile
);
688 /* C++: If requested to do so by the caller,
689 check to see if NAME is a field of `this'. */
690 if (is_a_field_of_this
)
692 struct value
*v
= value_of_this (0);
694 *is_a_field_of_this
= 0;
695 if (v
&& check_field (v
, name
))
697 *is_a_field_of_this
= 1;
704 /* Now search all global blocks. Do the symtab's first, then
705 check the psymtab's. If a psymtab indicates the existence
706 of the desired name as a global, then do psymtab-to-symtab
707 conversion on the fly and return the found symbol. */
709 ALL_SYMTABS (objfile
, s
)
711 bv
= BLOCKVECTOR (s
);
712 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
713 sym
= lookup_block_symbol (block
, name
, namespace);
719 return fixup_symbol_section (sym
, objfile
);
725 /* Check for the possibility of the symbol being a function or
726 a mangled variable that is stored in one of the minimal symbol tables.
727 Eventually, all global symbols might be resolved in this way. */
729 if (namespace == VAR_NAMESPACE
)
731 msymbol
= lookup_minimal_symbol (name
, NULL
, NULL
);
734 s
= find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol
),
735 SYMBOL_BFD_SECTION (msymbol
));
738 /* This is a function which has a symtab for its address. */
739 bv
= BLOCKVECTOR (s
);
740 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
741 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
743 /* We kept static functions in minimal symbol table as well as
744 in static scope. We want to find them in the symbol table. */
747 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
748 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
752 /* sym == 0 if symbol was found in the minimal symbol table
753 but not in the symtab.
754 Return 0 to use the msymbol definition of "foo_".
756 This happens for Fortran "foo_" symbols,
757 which are "foo" in the symtab.
759 This can also happen if "asm" is used to make a
760 regular symbol but not a debugging symbol, e.g.
767 return fixup_symbol_section (sym
, objfile
);
769 else if (MSYMBOL_TYPE (msymbol
) != mst_text
770 && MSYMBOL_TYPE (msymbol
) != mst_file_text
771 && !STREQ (name
, SYMBOL_NAME (msymbol
)))
773 /* This is a mangled variable, look it up by its
775 return lookup_symbol_aux (SYMBOL_NAME (msymbol
), block
,
776 namespace, is_a_field_of_this
, symtab
);
778 /* There are no debug symbols for this file, or we are looking
779 for an unmangled variable.
780 Try to find a matching static symbol below. */
786 ALL_PSYMTABS (objfile
, ps
)
788 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 1, namespace))
790 s
= PSYMTAB_TO_SYMTAB (ps
);
791 bv
= BLOCKVECTOR (s
);
792 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
793 sym
= lookup_block_symbol (block
, name
, namespace);
796 /* This shouldn't be necessary, but as a last resort
797 * try looking in the statics even though the psymtab
798 * claimed the symbol was global. It's possible that
799 * the psymtab gets it wrong in some cases.
801 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
802 sym
= lookup_block_symbol (block
, name
, namespace);
804 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
805 %s may be an inlined function, or may be a template function\n\
806 (if a template, try specifying an instantiation: %s<type>).",
807 name
, ps
->filename
, name
, name
);
811 return fixup_symbol_section (sym
, objfile
);
815 /* Now search all static file-level symbols.
816 Not strictly correct, but more useful than an error.
817 Do the symtabs first, then check the psymtabs.
818 If a psymtab indicates the existence
819 of the desired name as a file-level static, then do psymtab-to-symtab
820 conversion on the fly and return the found symbol. */
822 ALL_SYMTABS (objfile
, s
)
824 bv
= BLOCKVECTOR (s
);
825 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
826 sym
= lookup_block_symbol (block
, name
, namespace);
832 return fixup_symbol_section (sym
, objfile
);
836 ALL_PSYMTABS (objfile
, ps
)
838 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 0, namespace))
840 s
= PSYMTAB_TO_SYMTAB (ps
);
841 bv
= BLOCKVECTOR (s
);
842 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
843 sym
= lookup_block_symbol (block
, name
, namespace);
846 /* This shouldn't be necessary, but as a last resort
847 * try looking in the globals even though the psymtab
848 * claimed the symbol was static. It's possible that
849 * the psymtab gets it wrong in some cases.
851 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
852 sym
= lookup_block_symbol (block
, name
, namespace);
854 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
855 %s may be an inlined function, or may be a template function\n\
856 (if a template, try specifying an instantiation: %s<type>).",
857 name
, ps
->filename
, name
, name
);
861 return fixup_symbol_section (sym
, objfile
);
867 /* Check for the possibility of the symbol being a function or
868 a global variable that is stored in one of the minimal symbol tables.
869 The "minimal symbol table" is built from linker-supplied info.
871 RT: I moved this check to last, after the complete search of
872 the global (p)symtab's and static (p)symtab's. For HP-generated
873 symbol tables, this check was causing a premature exit from
874 lookup_symbol with NULL return, and thus messing up symbol lookups
875 of things like "c::f". It seems to me a check of the minimal
876 symbol table ought to be a last resort in any case. I'm vaguely
877 worried about the comment below which talks about FORTRAN routines "foo_"
878 though... is it saying we need to do the "minsym" check before
879 the static check in this case?
882 if (namespace == VAR_NAMESPACE
)
884 msymbol
= lookup_minimal_symbol (name
, NULL
, NULL
);
887 /* OK, we found a minimal symbol in spite of not
888 * finding any symbol. There are various possible
889 * explanations for this. One possibility is the symbol
890 * exists in code not compiled -g. Another possibility
891 * is that the 'psymtab' isn't doing its job.
892 * A third possibility, related to #2, is that we were confused
893 * by name-mangling. For instance, maybe the psymtab isn't
894 * doing its job because it only know about demangled
895 * names, but we were given a mangled name...
898 /* We first use the address in the msymbol to try to
899 * locate the appropriate symtab. Note that find_pc_symtab()
900 * has a side-effect of doing psymtab-to-symtab expansion,
901 * for the found symtab.
903 s
= find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
));
906 bv
= BLOCKVECTOR (s
);
907 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
908 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
910 /* We kept static functions in minimal symbol table as well as
911 in static scope. We want to find them in the symbol table. */
914 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
915 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
918 /* If we found one, return it */
926 /* If we get here with sym == 0, the symbol was
927 found in the minimal symbol table
928 but not in the symtab.
929 Fall through and return 0 to use the msymbol
930 definition of "foo_".
931 (Note that outer code generally follows up a call
932 to this routine with a call to lookup_minimal_symbol(),
933 so a 0 return means we'll just flow into that other routine).
935 This happens for Fortran "foo_" symbols,
936 which are "foo" in the symtab.
938 This can also happen if "asm" is used to make a
939 regular symbol but not a debugging symbol, e.g.
945 /* If the lookup-by-address fails, try repeating the
946 * entire lookup process with the symbol name from
947 * the msymbol (if different from the original symbol name).
949 else if (MSYMBOL_TYPE (msymbol
) != mst_text
950 && MSYMBOL_TYPE (msymbol
) != mst_file_text
951 && !STREQ (name
, SYMBOL_NAME (msymbol
)))
953 return lookup_symbol_aux (SYMBOL_NAME (msymbol
), block
,
954 namespace, is_a_field_of_this
, symtab
);
966 /* Look, in partial_symtab PST, for symbol NAME. Check the global
967 symbols if GLOBAL, the static symbols if not */
969 static struct partial_symbol
*
970 lookup_partial_symbol (struct partial_symtab
*pst
, const char *name
, int global
,
971 namespace_enum
namespace)
973 struct partial_symbol
*temp
;
974 struct partial_symbol
**start
, **psym
;
975 struct partial_symbol
**top
, **bottom
, **center
;
976 int length
= (global
? pst
->n_global_syms
: pst
->n_static_syms
);
977 int do_linear_search
= 1;
984 pst
->objfile
->global_psymbols
.list
+ pst
->globals_offset
:
985 pst
->objfile
->static_psymbols
.list
+ pst
->statics_offset
);
987 if (global
) /* This means we can use a binary search. */
989 do_linear_search
= 0;
991 /* Binary search. This search is guaranteed to end with center
992 pointing at the earliest partial symbol with the correct
993 name. At that point *all* partial symbols with that name
994 will be checked against the correct namespace. */
997 top
= start
+ length
- 1;
1000 center
= bottom
+ (top
- bottom
) / 2;
1001 if (!(center
< top
))
1002 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1003 if (!do_linear_search
1004 && (SYMBOL_LANGUAGE (*center
) == language_java
))
1006 do_linear_search
= 1;
1008 if (strcmp (SYMBOL_SOURCE_NAME (*center
), name
) >= 0)
1014 bottom
= center
+ 1;
1017 if (!(top
== bottom
))
1018 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1020 /* djb - 2000-06-03 - Use SYMBOL_MATCHES_NAME, not a strcmp, so
1021 we don't have to force a linear search on C++. Probably holds true
1022 for JAVA as well, no way to check.*/
1023 while (SYMBOL_MATCHES_NAME (*top
,name
))
1025 if (SYMBOL_NAMESPACE (*top
) == namespace)
1033 /* Can't use a binary search or else we found during the binary search that
1034 we should also do a linear search. */
1036 if (do_linear_search
)
1038 for (psym
= start
; psym
< start
+ length
; psym
++)
1040 if (namespace == SYMBOL_NAMESPACE (*psym
))
1042 if (SYMBOL_MATCHES_NAME (*psym
, name
))
1053 /* Look up a type named NAME in the struct_namespace. The type returned
1054 must not be opaque -- i.e., must have at least one field defined
1056 This code was modelled on lookup_symbol -- the parts not relevant to looking
1057 up types were just left out. In particular it's assumed here that types
1058 are available in struct_namespace and only at file-static or global blocks. */
1062 lookup_transparent_type (const char *name
)
1064 register struct symbol
*sym
;
1065 register struct symtab
*s
= NULL
;
1066 register struct partial_symtab
*ps
;
1067 struct blockvector
*bv
;
1068 register struct objfile
*objfile
;
1069 register struct block
*block
;
1071 /* Now search all the global symbols. Do the symtab's first, then
1072 check the psymtab's. If a psymtab indicates the existence
1073 of the desired name as a global, then do psymtab-to-symtab
1074 conversion on the fly and return the found symbol. */
1076 ALL_SYMTABS (objfile
, s
)
1078 bv
= BLOCKVECTOR (s
);
1079 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1080 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1081 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1083 return SYMBOL_TYPE (sym
);
1087 ALL_PSYMTABS (objfile
, ps
)
1089 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 1, STRUCT_NAMESPACE
))
1091 s
= PSYMTAB_TO_SYMTAB (ps
);
1092 bv
= BLOCKVECTOR (s
);
1093 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1094 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1097 /* This shouldn't be necessary, but as a last resort
1098 * try looking in the statics even though the psymtab
1099 * claimed the symbol was global. It's possible that
1100 * the psymtab gets it wrong in some cases.
1102 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1103 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1105 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
1106 %s may be an inlined function, or may be a template function\n\
1107 (if a template, try specifying an instantiation: %s<type>).",
1108 name
, ps
->filename
, name
, name
);
1110 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1111 return SYMBOL_TYPE (sym
);
1115 /* Now search the static file-level symbols.
1116 Not strictly correct, but more useful than an error.
1117 Do the symtab's first, then
1118 check the psymtab's. If a psymtab indicates the existence
1119 of the desired name as a file-level static, then do psymtab-to-symtab
1120 conversion on the fly and return the found symbol.
1123 ALL_SYMTABS (objfile
, s
)
1125 bv
= BLOCKVECTOR (s
);
1126 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1127 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1128 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1130 return SYMBOL_TYPE (sym
);
1134 ALL_PSYMTABS (objfile
, ps
)
1136 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 0, STRUCT_NAMESPACE
))
1138 s
= PSYMTAB_TO_SYMTAB (ps
);
1139 bv
= BLOCKVECTOR (s
);
1140 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1141 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1144 /* This shouldn't be necessary, but as a last resort
1145 * try looking in the globals even though the psymtab
1146 * claimed the symbol was static. It's possible that
1147 * the psymtab gets it wrong in some cases.
1149 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1150 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1152 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
1153 %s may be an inlined function, or may be a template function\n\
1154 (if a template, try specifying an instantiation: %s<type>).",
1155 name
, ps
->filename
, name
, name
);
1157 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1158 return SYMBOL_TYPE (sym
);
1161 return (struct type
*) 0;
1165 /* Find the psymtab containing main(). */
1166 /* FIXME: What about languages without main() or specially linked
1167 executables that have no main() ? */
1169 struct partial_symtab
*
1170 find_main_psymtab (void)
1172 register struct partial_symtab
*pst
;
1173 register struct objfile
*objfile
;
1175 ALL_PSYMTABS (objfile
, pst
)
1177 if (lookup_partial_symbol (pst
, "main", 1, VAR_NAMESPACE
))
1185 /* Search BLOCK for symbol NAME in NAMESPACE.
1187 Note that if NAME is the demangled form of a C++ symbol, we will fail
1188 to find a match during the binary search of the non-encoded names, but
1189 for now we don't worry about the slight inefficiency of looking for
1190 a match we'll never find, since it will go pretty quick. Once the
1191 binary search terminates, we drop through and do a straight linear
1192 search on the symbols. Each symbol which is marked as being a C++
1193 symbol (language_cplus set) has both the encoded and non-encoded names
1194 tested for a match. */
1197 lookup_block_symbol (register const struct block
*block
, const char *name
,
1198 const namespace_enum
namespace)
1200 register int bot
, top
, inc
;
1201 register struct symbol
*sym
;
1202 register struct symbol
*sym_found
= NULL
;
1203 register int do_linear_search
= 1;
1205 /* If the blocks's symbols were sorted, start with a binary search. */
1207 if (BLOCK_SHOULD_SORT (block
))
1209 /* Reset the linear search flag so if the binary search fails, we
1210 won't do the linear search once unless we find some reason to
1213 do_linear_search
= 0;
1214 top
= BLOCK_NSYMS (block
);
1217 /* Advance BOT to not far before the first symbol whose name is NAME. */
1221 inc
= (top
- bot
+ 1);
1222 /* No need to keep binary searching for the last few bits worth. */
1227 inc
= (inc
>> 1) + bot
;
1228 sym
= BLOCK_SYM (block
, inc
);
1229 if (!do_linear_search
&& (SYMBOL_LANGUAGE (sym
) == language_java
))
1231 do_linear_search
= 1;
1233 if (SYMBOL_SOURCE_NAME (sym
)[0] < name
[0])
1237 else if (SYMBOL_SOURCE_NAME (sym
)[0] > name
[0])
1241 else if (strcmp (SYMBOL_SOURCE_NAME (sym
), name
) < 0)
1251 /* Now scan forward until we run out of symbols, find one whose
1252 name is greater than NAME, or find one we want. If there is
1253 more than one symbol with the right name and namespace, we
1254 return the first one; I believe it is now impossible for us
1255 to encounter two symbols with the same name and namespace
1256 here, because blocks containing argument symbols are no
1259 top
= BLOCK_NSYMS (block
);
1262 sym
= BLOCK_SYM (block
, bot
);
1263 if (SYMBOL_NAMESPACE (sym
) == namespace &&
1264 SYMBOL_MATCHES_NAME (sym
, name
))
1272 /* Here if block isn't sorted, or we fail to find a match during the
1273 binary search above. If during the binary search above, we find a
1274 symbol which is a C++ symbol, then we have re-enabled the linear
1275 search flag which was reset when starting the binary search.
1277 This loop is equivalent to the loop above, but hacked greatly for speed.
1279 Note that parameter symbols do not always show up last in the
1280 list; this loop makes sure to take anything else other than
1281 parameter symbols first; it only uses parameter symbols as a
1282 last resort. Note that this only takes up extra computation
1285 if (do_linear_search
)
1287 top
= BLOCK_NSYMS (block
);
1291 sym
= BLOCK_SYM (block
, bot
);
1292 if (SYMBOL_NAMESPACE (sym
) == namespace &&
1293 SYMBOL_MATCHES_NAME (sym
, name
))
1295 /* If SYM has aliases, then use any alias that is active
1296 at the current PC. If no alias is active at the current
1297 PC, then use the main symbol.
1299 ?!? Is checking the current pc correct? Is this routine
1300 ever called to look up a symbol from another context?
1302 FIXME: No, it's not correct. If someone sets a
1303 conditional breakpoint at an address, then the
1304 breakpoint's `struct expression' should refer to the
1305 `struct symbol' appropriate for the breakpoint's
1306 address, which may not be the PC.
1308 Even if it were never called from another context,
1309 it's totally bizarre for lookup_symbol's behavior to
1310 depend on the value of the inferior's current PC. We
1311 should pass in the appropriate PC as well as the
1312 block. The interface to lookup_symbol should change
1313 to require the caller to provide a PC. */
1315 if (SYMBOL_ALIASES (sym
))
1316 sym
= find_active_alias (sym
, read_pc ());
1319 if (SYMBOL_CLASS (sym
) != LOC_ARG
&&
1320 SYMBOL_CLASS (sym
) != LOC_LOCAL_ARG
&&
1321 SYMBOL_CLASS (sym
) != LOC_REF_ARG
&&
1322 SYMBOL_CLASS (sym
) != LOC_REGPARM
&&
1323 SYMBOL_CLASS (sym
) != LOC_REGPARM_ADDR
&&
1324 SYMBOL_CLASS (sym
) != LOC_BASEREG_ARG
)
1332 return (sym_found
); /* Will be NULL if not found. */
1335 /* Given a main symbol SYM and ADDR, search through the alias
1336 list to determine if an alias is active at ADDR and return
1339 If no alias is active, then return SYM. */
1341 static struct symbol
*
1342 find_active_alias (struct symbol
*sym
, CORE_ADDR addr
)
1344 struct range_list
*r
;
1345 struct alias_list
*aliases
;
1347 /* If we have aliases, check them first. */
1348 aliases
= SYMBOL_ALIASES (sym
);
1352 if (!SYMBOL_RANGES (aliases
->sym
))
1353 return aliases
->sym
;
1354 for (r
= SYMBOL_RANGES (aliases
->sym
); r
; r
= r
->next
)
1356 if (r
->start
<= addr
&& r
->end
> addr
)
1357 return aliases
->sym
;
1359 aliases
= aliases
->next
;
1362 /* Nothing found, return the main symbol. */
1367 /* Return the symbol for the function which contains a specified
1368 lexical block, described by a struct block BL. */
1371 block_function (struct block
*bl
)
1373 while (BLOCK_FUNCTION (bl
) == 0 && BLOCK_SUPERBLOCK (bl
) != 0)
1374 bl
= BLOCK_SUPERBLOCK (bl
);
1376 return BLOCK_FUNCTION (bl
);
1379 /* Find the symtab associated with PC and SECTION. Look through the
1380 psymtabs and read in another symtab if necessary. */
1383 find_pc_sect_symtab (CORE_ADDR pc
, asection
*section
)
1385 register struct block
*b
;
1386 struct blockvector
*bv
;
1387 register struct symtab
*s
= NULL
;
1388 register struct symtab
*best_s
= NULL
;
1389 register struct partial_symtab
*ps
;
1390 register struct objfile
*objfile
;
1391 CORE_ADDR distance
= 0;
1393 /* Search all symtabs for the one whose file contains our address, and which
1394 is the smallest of all the ones containing the address. This is designed
1395 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1396 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1397 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1399 This happens for native ecoff format, where code from included files
1400 gets its own symtab. The symtab for the included file should have
1401 been read in already via the dependency mechanism.
1402 It might be swifter to create several symtabs with the same name
1403 like xcoff does (I'm not sure).
1405 It also happens for objfiles that have their functions reordered.
1406 For these, the symtab we are looking for is not necessarily read in. */
1408 ALL_SYMTABS (objfile
, s
)
1410 bv
= BLOCKVECTOR (s
);
1411 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1413 if (BLOCK_START (b
) <= pc
1414 && BLOCK_END (b
) > pc
1416 || BLOCK_END (b
) - BLOCK_START (b
) < distance
))
1418 /* For an objfile that has its functions reordered,
1419 find_pc_psymtab will find the proper partial symbol table
1420 and we simply return its corresponding symtab. */
1421 /* In order to better support objfiles that contain both
1422 stabs and coff debugging info, we continue on if a psymtab
1424 if ((objfile
->flags
& OBJF_REORDERED
) && objfile
->psymtabs
)
1426 ps
= find_pc_sect_psymtab (pc
, section
);
1428 return PSYMTAB_TO_SYMTAB (ps
);
1434 for (i
= 0; i
< b
->nsyms
; i
++)
1436 fixup_symbol_section (b
->sym
[i
], objfile
);
1437 if (section
== SYMBOL_BFD_SECTION (b
->sym
[i
]))
1441 continue; /* no symbol in this symtab matches section */
1443 distance
= BLOCK_END (b
) - BLOCK_START (b
);
1452 ps
= find_pc_sect_psymtab (pc
, section
);
1456 /* Might want to error() here (in case symtab is corrupt and
1457 will cause a core dump), but maybe we can successfully
1458 continue, so let's not. */
1460 (Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n",
1462 s
= PSYMTAB_TO_SYMTAB (ps
);
1467 /* Find the symtab associated with PC. Look through the psymtabs and
1468 read in another symtab if necessary. Backward compatibility, no section */
1471 find_pc_symtab (CORE_ADDR pc
)
1473 return find_pc_sect_symtab (pc
, find_pc_mapped_section (pc
));
1479 /* Find the closest symbol value (of any sort -- function or variable)
1480 for a given address value. Slow but complete. (currently unused,
1481 mainly because it is too slow. We could fix it if each symtab and
1482 psymtab had contained in it the addresses ranges of each of its
1483 sections, which also would be required to make things like "info
1484 line *0x2345" cause psymtabs to be converted to symtabs). */
1487 find_addr_symbol (CORE_ADDR addr
, struct symtab
**symtabp
, CORE_ADDR
*symaddrp
)
1489 struct symtab
*symtab
, *best_symtab
;
1490 struct objfile
*objfile
;
1491 register int bot
, top
;
1492 register struct symbol
*sym
;
1493 register CORE_ADDR sym_addr
;
1494 struct block
*block
;
1497 /* Info on best symbol seen so far */
1499 register CORE_ADDR best_sym_addr
= 0;
1500 struct symbol
*best_sym
= 0;
1502 /* FIXME -- we should pull in all the psymtabs, too! */
1503 ALL_SYMTABS (objfile
, symtab
)
1505 /* Search the global and static blocks in this symtab for
1506 the closest symbol-address to the desired address. */
1508 for (blocknum
= GLOBAL_BLOCK
; blocknum
<= STATIC_BLOCK
; blocknum
++)
1511 block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab
), blocknum
);
1512 top
= BLOCK_NSYMS (block
);
1513 for (bot
= 0; bot
< top
; bot
++)
1515 sym
= BLOCK_SYM (block
, bot
);
1516 switch (SYMBOL_CLASS (sym
))
1520 sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
1524 sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
1525 /* An indirect symbol really lives at *sym_addr,
1526 * so an indirection needs to be done.
1527 * However, I am leaving this commented out because it's
1528 * expensive, and it's possible that symbolization
1529 * could be done without an active process (in
1530 * case this read_memory will fail). RT
1531 sym_addr = read_memory_unsigned_integer
1532 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1537 sym_addr
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
1544 if (sym_addr
<= addr
)
1545 if (sym_addr
> best_sym_addr
)
1547 /* Quit if we found an exact match. */
1549 best_sym_addr
= sym_addr
;
1550 best_symtab
= symtab
;
1551 if (sym_addr
== addr
)
1560 *symtabp
= best_symtab
;
1562 *symaddrp
= best_sym_addr
;
1567 /* Find the source file and line number for a given PC value and SECTION.
1568 Return a structure containing a symtab pointer, a line number,
1569 and a pc range for the entire source line.
1570 The value's .pc field is NOT the specified pc.
1571 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1572 use the line that ends there. Otherwise, in that case, the line
1573 that begins there is used. */
1575 /* The big complication here is that a line may start in one file, and end just
1576 before the start of another file. This usually occurs when you #include
1577 code in the middle of a subroutine. To properly find the end of a line's PC
1578 range, we must search all symtabs associated with this compilation unit, and
1579 find the one whose first PC is closer than that of the next line in this
1582 /* If it's worth the effort, we could be using a binary search. */
1584 struct symtab_and_line
1585 find_pc_sect_line (CORE_ADDR pc
, struct sec
*section
, int notcurrent
)
1588 register struct linetable
*l
;
1591 register struct linetable_entry
*item
;
1592 struct symtab_and_line val
;
1593 struct blockvector
*bv
;
1594 struct minimal_symbol
*msymbol
;
1595 struct minimal_symbol
*mfunsym
;
1597 /* Info on best line seen so far, and where it starts, and its file. */
1599 struct linetable_entry
*best
= NULL
;
1600 CORE_ADDR best_end
= 0;
1601 struct symtab
*best_symtab
= 0;
1603 /* Store here the first line number
1604 of a file which contains the line at the smallest pc after PC.
1605 If we don't find a line whose range contains PC,
1606 we will use a line one less than this,
1607 with a range from the start of that file to the first line's pc. */
1608 struct linetable_entry
*alt
= NULL
;
1609 struct symtab
*alt_symtab
= 0;
1611 /* Info on best line seen in this file. */
1613 struct linetable_entry
*prev
;
1615 /* If this pc is not from the current frame,
1616 it is the address of the end of a call instruction.
1617 Quite likely that is the start of the following statement.
1618 But what we want is the statement containing the instruction.
1619 Fudge the pc to make sure we get that. */
1621 INIT_SAL (&val
); /* initialize to zeroes */
1626 /* elz: added this because this function returned the wrong
1627 information if the pc belongs to a stub (import/export)
1628 to call a shlib function. This stub would be anywhere between
1629 two functions in the target, and the line info was erroneously
1630 taken to be the one of the line before the pc.
1632 /* RT: Further explanation:
1634 * We have stubs (trampolines) inserted between procedures.
1636 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1637 * exists in the main image.
1639 * In the minimal symbol table, we have a bunch of symbols
1640 * sorted by start address. The stubs are marked as "trampoline",
1641 * the others appear as text. E.g.:
1643 * Minimal symbol table for main image
1644 * main: code for main (text symbol)
1645 * shr1: stub (trampoline symbol)
1646 * foo: code for foo (text symbol)
1648 * Minimal symbol table for "shr1" image:
1650 * shr1: code for shr1 (text symbol)
1653 * So the code below is trying to detect if we are in the stub
1654 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1655 * and if found, do the symbolization from the real-code address
1656 * rather than the stub address.
1658 * Assumptions being made about the minimal symbol table:
1659 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1660 * if we're really in the trampoline. If we're beyond it (say
1661 * we're in "foo" in the above example), it'll have a closer
1662 * symbol (the "foo" text symbol for example) and will not
1663 * return the trampoline.
1664 * 2. lookup_minimal_symbol_text() will find a real text symbol
1665 * corresponding to the trampoline, and whose address will
1666 * be different than the trampoline address. I put in a sanity
1667 * check for the address being the same, to avoid an
1668 * infinite recursion.
1670 msymbol
= lookup_minimal_symbol_by_pc (pc
);
1671 if (msymbol
!= NULL
)
1672 if (MSYMBOL_TYPE (msymbol
) == mst_solib_trampoline
)
1674 mfunsym
= lookup_minimal_symbol_text (SYMBOL_NAME (msymbol
), NULL
, NULL
);
1675 if (mfunsym
== NULL
)
1676 /* I eliminated this warning since it is coming out
1677 * in the following situation:
1678 * gdb shmain // test program with shared libraries
1679 * (gdb) break shr1 // function in shared lib
1680 * Warning: In stub for ...
1681 * In the above situation, the shared lib is not loaded yet,
1682 * so of course we can't find the real func/line info,
1683 * but the "break" still works, and the warning is annoying.
1684 * So I commented out the warning. RT */
1685 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1687 else if (SYMBOL_VALUE (mfunsym
) == SYMBOL_VALUE (msymbol
))
1688 /* Avoid infinite recursion */
1689 /* See above comment about why warning is commented out */
1690 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1693 return find_pc_line (SYMBOL_VALUE (mfunsym
), 0);
1697 s
= find_pc_sect_symtab (pc
, section
);
1700 /* if no symbol information, return previous pc */
1707 bv
= BLOCKVECTOR (s
);
1709 /* Look at all the symtabs that share this blockvector.
1710 They all have the same apriori range, that we found was right;
1711 but they have different line tables. */
1713 for (; s
&& BLOCKVECTOR (s
) == bv
; s
= s
->next
)
1715 /* Find the best line in this symtab. */
1722 /* I think len can be zero if the symtab lacks line numbers
1723 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1724 I'm not sure which, and maybe it depends on the symbol
1730 item
= l
->item
; /* Get first line info */
1732 /* Is this file's first line closer than the first lines of other files?
1733 If so, record this file, and its first line, as best alternate. */
1734 if (item
->pc
> pc
&& (!alt
|| item
->pc
< alt
->pc
))
1740 for (i
= 0; i
< len
; i
++, item
++)
1742 /* Leave prev pointing to the linetable entry for the last line
1743 that started at or before PC. */
1750 /* At this point, prev points at the line whose start addr is <= pc, and
1751 item points at the next line. If we ran off the end of the linetable
1752 (pc >= start of the last line), then prev == item. If pc < start of
1753 the first line, prev will not be set. */
1755 /* Is this file's best line closer than the best in the other files?
1756 If so, record this file, and its best line, as best so far. */
1758 if (prev
&& (!best
|| prev
->pc
> best
->pc
))
1763 /* Discard BEST_END if it's before the PC of the current BEST. */
1764 if (best_end
<= best
->pc
)
1768 /* If another line (denoted by ITEM) is in the linetable and its
1769 PC is after BEST's PC, but before the current BEST_END, then
1770 use ITEM's PC as the new best_end. */
1771 if (best
&& i
< len
&& item
->pc
> best
->pc
1772 && (best_end
== 0 || best_end
> item
->pc
))
1773 best_end
= item
->pc
;
1779 { /* If we didn't find any line # info, just
1785 val
.symtab
= alt_symtab
;
1786 val
.line
= alt
->line
- 1;
1788 /* Don't return line 0, that means that we didn't find the line. */
1792 val
.pc
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1798 val
.symtab
= best_symtab
;
1799 val
.line
= best
->line
;
1801 if (best_end
&& (!alt
|| best_end
< alt
->pc
))
1806 val
.end
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1808 val
.section
= section
;
1812 /* Backward compatibility (no section) */
1814 struct symtab_and_line
1815 find_pc_line (CORE_ADDR pc
, int notcurrent
)
1819 section
= find_pc_overlay (pc
);
1820 if (pc_in_unmapped_range (pc
, section
))
1821 pc
= overlay_mapped_address (pc
, section
);
1822 return find_pc_sect_line (pc
, section
, notcurrent
);
1825 /* Find line number LINE in any symtab whose name is the same as
1828 If found, return the symtab that contains the linetable in which it was
1829 found, set *INDEX to the index in the linetable of the best entry
1830 found, and set *EXACT_MATCH nonzero if the value returned is an
1833 If not found, return NULL. */
1836 find_line_symtab (struct symtab
*symtab
, int line
, int *index
, int *exact_match
)
1840 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1844 struct linetable
*best_linetable
;
1845 struct symtab
*best_symtab
;
1847 /* First try looking it up in the given symtab. */
1848 best_linetable
= LINETABLE (symtab
);
1849 best_symtab
= symtab
;
1850 best_index
= find_line_common (best_linetable
, line
, &exact
);
1851 if (best_index
< 0 || !exact
)
1853 /* Didn't find an exact match. So we better keep looking for
1854 another symtab with the same name. In the case of xcoff,
1855 multiple csects for one source file (produced by IBM's FORTRAN
1856 compiler) produce multiple symtabs (this is unavoidable
1857 assuming csects can be at arbitrary places in memory and that
1858 the GLOBAL_BLOCK of a symtab has a begin and end address). */
1860 /* BEST is the smallest linenumber > LINE so far seen,
1861 or 0 if none has been seen so far.
1862 BEST_INDEX and BEST_LINETABLE identify the item for it. */
1865 struct objfile
*objfile
;
1868 if (best_index
>= 0)
1869 best
= best_linetable
->item
[best_index
].line
;
1873 ALL_SYMTABS (objfile
, s
)
1875 struct linetable
*l
;
1878 if (!STREQ (symtab
->filename
, s
->filename
))
1881 ind
= find_line_common (l
, line
, &exact
);
1891 if (best
== 0 || l
->item
[ind
].line
< best
)
1893 best
= l
->item
[ind
].line
;
1906 *index
= best_index
;
1908 *exact_match
= exact
;
1913 /* Set the PC value for a given source file and line number and return true.
1914 Returns zero for invalid line number (and sets the PC to 0).
1915 The source file is specified with a struct symtab. */
1918 find_line_pc (struct symtab
*symtab
, int line
, CORE_ADDR
*pc
)
1920 struct linetable
*l
;
1927 symtab
= find_line_symtab (symtab
, line
, &ind
, NULL
);
1930 l
= LINETABLE (symtab
);
1931 *pc
= l
->item
[ind
].pc
;
1938 /* Find the range of pc values in a line.
1939 Store the starting pc of the line into *STARTPTR
1940 and the ending pc (start of next line) into *ENDPTR.
1941 Returns 1 to indicate success.
1942 Returns 0 if could not find the specified line. */
1945 find_line_pc_range (struct symtab_and_line sal
, CORE_ADDR
*startptr
,
1948 CORE_ADDR startaddr
;
1949 struct symtab_and_line found_sal
;
1952 if (startaddr
== 0 && !find_line_pc (sal
.symtab
, sal
.line
, &startaddr
))
1955 /* This whole function is based on address. For example, if line 10 has
1956 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
1957 "info line *0x123" should say the line goes from 0x100 to 0x200
1958 and "info line *0x355" should say the line goes from 0x300 to 0x400.
1959 This also insures that we never give a range like "starts at 0x134
1960 and ends at 0x12c". */
1962 found_sal
= find_pc_sect_line (startaddr
, sal
.section
, 0);
1963 if (found_sal
.line
!= sal
.line
)
1965 /* The specified line (sal) has zero bytes. */
1966 *startptr
= found_sal
.pc
;
1967 *endptr
= found_sal
.pc
;
1971 *startptr
= found_sal
.pc
;
1972 *endptr
= found_sal
.end
;
1977 /* Given a line table and a line number, return the index into the line
1978 table for the pc of the nearest line whose number is >= the specified one.
1979 Return -1 if none is found. The value is >= 0 if it is an index.
1981 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
1984 find_line_common (register struct linetable
*l
, register int lineno
,
1990 /* BEST is the smallest linenumber > LINENO so far seen,
1991 or 0 if none has been seen so far.
1992 BEST_INDEX identifies the item for it. */
1994 int best_index
= -1;
2003 for (i
= 0; i
< len
; i
++)
2005 register struct linetable_entry
*item
= &(l
->item
[i
]);
2007 if (item
->line
== lineno
)
2009 /* Return the first (lowest address) entry which matches. */
2014 if (item
->line
> lineno
&& (best
== 0 || item
->line
< best
))
2021 /* If we got here, we didn't get an exact match. */
2028 find_pc_line_pc_range (CORE_ADDR pc
, CORE_ADDR
*startptr
, CORE_ADDR
*endptr
)
2030 struct symtab_and_line sal
;
2031 sal
= find_pc_line (pc
, 0);
2034 return sal
.symtab
!= 0;
2037 /* Given a function symbol SYM, find the symtab and line for the start
2039 If the argument FUNFIRSTLINE is nonzero, we want the first line
2040 of real code inside the function. */
2042 struct symtab_and_line
2043 find_function_start_sal (struct symbol
*sym
, int funfirstline
)
2046 struct symtab_and_line sal
;
2048 pc
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
2049 fixup_symbol_section (sym
, NULL
);
2051 { /* skip "first line" of function (which is actually its prologue) */
2052 asection
*section
= SYMBOL_BFD_SECTION (sym
);
2053 /* If function is in an unmapped overlay, use its unmapped LMA
2054 address, so that SKIP_PROLOGUE has something unique to work on */
2055 if (section_is_overlay (section
) &&
2056 !section_is_mapped (section
))
2057 pc
= overlay_unmapped_address (pc
, section
);
2059 pc
+= FUNCTION_START_OFFSET
;
2060 pc
= SKIP_PROLOGUE (pc
);
2062 /* For overlays, map pc back into its mapped VMA range */
2063 pc
= overlay_mapped_address (pc
, section
);
2065 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2067 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2068 /* Convex: no need to suppress code on first line, if any */
2071 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2072 line is still part of the same function. */
2074 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym
)) <= sal
.end
2075 && sal
.end
< BLOCK_END (SYMBOL_BLOCK_VALUE (sym
)))
2077 /* First pc of next line */
2079 /* Recalculate the line number (might not be N+1). */
2080 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2088 /* If P is of the form "operator[ \t]+..." where `...' is
2089 some legitimate operator text, return a pointer to the
2090 beginning of the substring of the operator text.
2091 Otherwise, return "". */
2093 operator_chars (char *p
, char **end
)
2096 if (strncmp (p
, "operator", 8))
2100 /* Don't get faked out by `operator' being part of a longer
2102 if (isalpha (*p
) || *p
== '_' || *p
== '$' || *p
== '\0')
2105 /* Allow some whitespace between `operator' and the operator symbol. */
2106 while (*p
== ' ' || *p
== '\t')
2109 /* Recognize 'operator TYPENAME'. */
2111 if (isalpha (*p
) || *p
== '_' || *p
== '$')
2113 register char *q
= p
+ 1;
2114 while (isalnum (*q
) || *q
== '_' || *q
== '$')
2139 if (p
[1] == '=' || p
[1] == p
[0])
2150 error ("`operator ()' must be specified without whitespace in `()'");
2155 error ("`operator ?:' must be specified without whitespace in `?:'");
2160 error ("`operator []' must be specified without whitespace in `[]'");
2164 error ("`operator %s' not supported", p
);
2172 /* Slave routine for sources_info. Force line breaks at ,'s.
2173 NAME is the name to print and *FIRST is nonzero if this is the first
2174 name printed. Set *FIRST to zero. */
2176 output_source_filename (char *name
, int *first
)
2178 /* Table of files printed so far. Since a single source file can
2179 result in several partial symbol tables, we need to avoid printing
2180 it more than once. Note: if some of the psymtabs are read in and
2181 some are not, it gets printed both under "Source files for which
2182 symbols have been read" and "Source files for which symbols will
2183 be read in on demand". I consider this a reasonable way to deal
2184 with the situation. I'm not sure whether this can also happen for
2185 symtabs; it doesn't hurt to check. */
2186 static char **tab
= NULL
;
2187 /* Allocated size of tab in elements.
2188 Start with one 256-byte block (when using GNU malloc.c).
2189 24 is the malloc overhead when range checking is in effect. */
2190 static int tab_alloc_size
= (256 - 24) / sizeof (char *);
2191 /* Current size of tab in elements. */
2192 static int tab_cur_size
;
2199 tab
= (char **) xmalloc (tab_alloc_size
* sizeof (*tab
));
2203 /* Is NAME in tab? */
2204 for (p
= tab
; p
< tab
+ tab_cur_size
; p
++)
2205 if (STREQ (*p
, name
))
2206 /* Yes; don't print it again. */
2208 /* No; add it to tab. */
2209 if (tab_cur_size
== tab_alloc_size
)
2211 tab_alloc_size
*= 2;
2212 tab
= (char **) xrealloc ((char *) tab
, tab_alloc_size
* sizeof (*tab
));
2214 tab
[tab_cur_size
++] = name
;
2222 printf_filtered (", ");
2226 fputs_filtered (name
, gdb_stdout
);
2230 sources_info (char *ignore
, int from_tty
)
2232 register struct symtab
*s
;
2233 register struct partial_symtab
*ps
;
2234 register struct objfile
*objfile
;
2237 if (!have_full_symbols () && !have_partial_symbols ())
2239 error ("No symbol table is loaded. Use the \"file\" command.");
2242 printf_filtered ("Source files for which symbols have been read in:\n\n");
2245 ALL_SYMTABS (objfile
, s
)
2247 output_source_filename (s
->filename
, &first
);
2249 printf_filtered ("\n\n");
2251 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
2254 ALL_PSYMTABS (objfile
, ps
)
2258 output_source_filename (ps
->filename
, &first
);
2261 printf_filtered ("\n");
2265 file_matches (char *file
, char *files
[], int nfiles
)
2269 if (file
!= NULL
&& nfiles
!= 0)
2271 for (i
= 0; i
< nfiles
; i
++)
2273 if (strcmp (files
[i
], basename (file
)) == 0)
2277 else if (nfiles
== 0)
2282 /* Free any memory associated with a search. */
2284 free_search_symbols (struct symbol_search
*symbols
)
2286 struct symbol_search
*p
;
2287 struct symbol_search
*next
;
2289 for (p
= symbols
; p
!= NULL
; p
= next
)
2297 do_free_search_symbols_cleanup (void *symbols
)
2299 free_search_symbols (symbols
);
2303 make_cleanup_free_search_symbols (struct symbol_search
*symbols
)
2305 return make_cleanup (do_free_search_symbols_cleanup
, symbols
);
2309 /* Search the symbol table for matches to the regular expression REGEXP,
2310 returning the results in *MATCHES.
2312 Only symbols of KIND are searched:
2313 FUNCTIONS_NAMESPACE - search all functions
2314 TYPES_NAMESPACE - search all type names
2315 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
2316 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
2317 and constants (enums)
2319 free_search_symbols should be called when *MATCHES is no longer needed.
2322 search_symbols (char *regexp
, namespace_enum kind
, int nfiles
, char *files
[],
2323 struct symbol_search
**matches
)
2325 register struct symtab
*s
;
2326 register struct partial_symtab
*ps
;
2327 register struct blockvector
*bv
;
2328 struct blockvector
*prev_bv
= 0;
2329 register struct block
*b
;
2332 register struct symbol
*sym
;
2333 struct partial_symbol
**psym
;
2334 struct objfile
*objfile
;
2335 struct minimal_symbol
*msymbol
;
2338 static enum minimal_symbol_type types
[]
2340 {mst_data
, mst_text
, mst_abs
, mst_unknown
};
2341 static enum minimal_symbol_type types2
[]
2343 {mst_bss
, mst_file_text
, mst_abs
, mst_unknown
};
2344 static enum minimal_symbol_type types3
[]
2346 {mst_file_data
, mst_solib_trampoline
, mst_abs
, mst_unknown
};
2347 static enum minimal_symbol_type types4
[]
2349 {mst_file_bss
, mst_text
, mst_abs
, mst_unknown
};
2350 enum minimal_symbol_type ourtype
;
2351 enum minimal_symbol_type ourtype2
;
2352 enum minimal_symbol_type ourtype3
;
2353 enum minimal_symbol_type ourtype4
;
2354 struct symbol_search
*sr
;
2355 struct symbol_search
*psr
;
2356 struct symbol_search
*tail
;
2357 struct cleanup
*old_chain
= NULL
;
2359 if (kind
< VARIABLES_NAMESPACE
)
2360 error ("must search on specific namespace");
2362 ourtype
= types
[(int) (kind
- VARIABLES_NAMESPACE
)];
2363 ourtype2
= types2
[(int) (kind
- VARIABLES_NAMESPACE
)];
2364 ourtype3
= types3
[(int) (kind
- VARIABLES_NAMESPACE
)];
2365 ourtype4
= types4
[(int) (kind
- VARIABLES_NAMESPACE
)];
2367 sr
= *matches
= NULL
;
2372 /* Make sure spacing is right for C++ operators.
2373 This is just a courtesy to make the matching less sensitive
2374 to how many spaces the user leaves between 'operator'
2375 and <TYPENAME> or <OPERATOR>. */
2377 char *opname
= operator_chars (regexp
, &opend
);
2380 int fix
= -1; /* -1 means ok; otherwise number of spaces needed. */
2381 if (isalpha (*opname
) || *opname
== '_' || *opname
== '$')
2383 /* There should 1 space between 'operator' and 'TYPENAME'. */
2384 if (opname
[-1] != ' ' || opname
[-2] == ' ')
2389 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
2390 if (opname
[-1] == ' ')
2393 /* If wrong number of spaces, fix it. */
2396 char *tmp
= (char *) alloca (opend
- opname
+ 10);
2397 sprintf (tmp
, "operator%.*s%s", fix
, " ", opname
);
2402 if (0 != (val
= re_comp (regexp
)))
2403 error ("Invalid regexp (%s): %s", val
, regexp
);
2406 /* Search through the partial symtabs *first* for all symbols
2407 matching the regexp. That way we don't have to reproduce all of
2408 the machinery below. */
2410 ALL_PSYMTABS (objfile
, ps
)
2412 struct partial_symbol
**bound
, **gbound
, **sbound
;
2418 gbound
= objfile
->global_psymbols
.list
+ ps
->globals_offset
+ ps
->n_global_syms
;
2419 sbound
= objfile
->static_psymbols
.list
+ ps
->statics_offset
+ ps
->n_static_syms
;
2422 /* Go through all of the symbols stored in a partial
2423 symtab in one loop. */
2424 psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
2429 if (bound
== gbound
&& ps
->n_static_syms
!= 0)
2431 psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
2442 /* If it would match (logic taken from loop below)
2443 load the file and go on to the next one */
2444 if (file_matches (ps
->filename
, files
, nfiles
)
2445 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (*psym
))
2446 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (*psym
) != LOC_TYPEDEF
2447 && SYMBOL_CLASS (*psym
) != LOC_BLOCK
)
2448 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
)
2449 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_TYPEDEF
)
2450 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
))))
2452 PSYMTAB_TO_SYMTAB (ps
);
2460 /* Here, we search through the minimal symbol tables for functions
2461 and variables that match, and force their symbols to be read.
2462 This is in particular necessary for demangled variable names,
2463 which are no longer put into the partial symbol tables.
2464 The symbol will then be found during the scan of symtabs below.
2466 For functions, find_pc_symtab should succeed if we have debug info
2467 for the function, for variables we have to call lookup_symbol
2468 to determine if the variable has debug info.
2469 If the lookup fails, set found_misc so that we will rescan to print
2470 any matching symbols without debug info.
2473 if (nfiles
== 0 && (kind
== VARIABLES_NAMESPACE
|| kind
== FUNCTIONS_NAMESPACE
))
2475 ALL_MSYMBOLS (objfile
, msymbol
)
2477 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
2478 MSYMBOL_TYPE (msymbol
) == ourtype2
||
2479 MSYMBOL_TYPE (msymbol
) == ourtype3
||
2480 MSYMBOL_TYPE (msymbol
) == ourtype4
)
2482 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
2484 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
)))
2486 if (kind
== FUNCTIONS_NAMESPACE
2487 || lookup_symbol (SYMBOL_NAME (msymbol
),
2488 (struct block
*) NULL
,
2490 0, (struct symtab
**) NULL
) == NULL
)
2498 ALL_SYMTABS (objfile
, s
)
2500 bv
= BLOCKVECTOR (s
);
2501 /* Often many files share a blockvector.
2502 Scan each blockvector only once so that
2503 we don't get every symbol many times.
2504 It happens that the first symtab in the list
2505 for any given blockvector is the main file. */
2507 for (i
= GLOBAL_BLOCK
; i
<= STATIC_BLOCK
; i
++)
2509 b
= BLOCKVECTOR_BLOCK (bv
, i
);
2510 /* Skip the sort if this block is always sorted. */
2511 if (!BLOCK_SHOULD_SORT (b
))
2512 sort_block_syms (b
);
2513 for (j
= 0; j
< BLOCK_NSYMS (b
); j
++)
2516 sym
= BLOCK_SYM (b
, j
);
2517 if (file_matches (s
->filename
, files
, nfiles
)
2518 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (sym
))
2519 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (sym
) != LOC_TYPEDEF
2520 && SYMBOL_CLASS (sym
) != LOC_BLOCK
2521 && SYMBOL_CLASS (sym
) != LOC_CONST
)
2522 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
)
2523 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
2524 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
))))
2527 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
2531 psr
->msymbol
= NULL
;
2536 old_chain
= make_cleanup_free_search_symbols (sr
);
2547 /* If there are no eyes, avoid all contact. I mean, if there are
2548 no debug symbols, then print directly from the msymbol_vector. */
2550 if (found_misc
|| kind
!= FUNCTIONS_NAMESPACE
)
2552 ALL_MSYMBOLS (objfile
, msymbol
)
2554 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
2555 MSYMBOL_TYPE (msymbol
) == ourtype2
||
2556 MSYMBOL_TYPE (msymbol
) == ourtype3
||
2557 MSYMBOL_TYPE (msymbol
) == ourtype4
)
2559 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
2561 /* Functions: Look up by address. */
2562 if (kind
!= FUNCTIONS_NAMESPACE
||
2563 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
))))
2565 /* Variables/Absolutes: Look up by name */
2566 if (lookup_symbol (SYMBOL_NAME (msymbol
),
2567 (struct block
*) NULL
, VAR_NAMESPACE
,
2568 0, (struct symtab
**) NULL
) == NULL
)
2571 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
2573 psr
->msymbol
= msymbol
;
2580 old_chain
= make_cleanup_free_search_symbols (sr
);
2594 discard_cleanups (old_chain
);
2597 /* Helper function for symtab_symbol_info, this function uses
2598 the data returned from search_symbols() to print information
2599 regarding the match to gdb_stdout.
2602 print_symbol_info (namespace_enum kind
, struct symtab
*s
, struct symbol
*sym
,
2603 int block
, char *last
)
2605 if (last
== NULL
|| strcmp (last
, s
->filename
) != 0)
2607 fputs_filtered ("\nFile ", gdb_stdout
);
2608 fputs_filtered (s
->filename
, gdb_stdout
);
2609 fputs_filtered (":\n", gdb_stdout
);
2612 if (kind
!= TYPES_NAMESPACE
&& block
== STATIC_BLOCK
)
2613 printf_filtered ("static ");
2615 /* Typedef that is not a C++ class */
2616 if (kind
== TYPES_NAMESPACE
2617 && SYMBOL_NAMESPACE (sym
) != STRUCT_NAMESPACE
)
2618 typedef_print (SYMBOL_TYPE (sym
), sym
, gdb_stdout
);
2619 /* variable, func, or typedef-that-is-c++-class */
2620 else if (kind
< TYPES_NAMESPACE
||
2621 (kind
== TYPES_NAMESPACE
&&
2622 SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
))
2624 type_print (SYMBOL_TYPE (sym
),
2625 (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
2626 ? "" : SYMBOL_SOURCE_NAME (sym
)),
2629 printf_filtered (";\n");
2634 /* Tiemann says: "info methods was never implemented." */
2635 char *demangled_name
;
2636 c_type_print_base (TYPE_FN_FIELD_TYPE (t
, block
),
2638 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t
, block
),
2640 if (TYPE_FN_FIELD_STUB (t
, block
))
2641 check_stub_method (TYPE_DOMAIN_TYPE (type
), j
, block
);
2643 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t
, block
),
2644 DMGL_ANSI
| DMGL_PARAMS
);
2645 if (demangled_name
== NULL
)
2646 fprintf_filtered (stream
, "<badly mangled name %s>",
2647 TYPE_FN_FIELD_PHYSNAME (t
, block
));
2650 fputs_filtered (demangled_name
, stream
);
2651 xfree (demangled_name
);
2657 /* This help function for symtab_symbol_info() prints information
2658 for non-debugging symbols to gdb_stdout.
2661 print_msymbol_info (struct minimal_symbol
*msymbol
)
2663 printf_filtered (" %08lx %s\n",
2664 (unsigned long) SYMBOL_VALUE_ADDRESS (msymbol
),
2665 SYMBOL_SOURCE_NAME (msymbol
));
2668 /* This is the guts of the commands "info functions", "info types", and
2669 "info variables". It calls search_symbols to find all matches and then
2670 print_[m]symbol_info to print out some useful information about the
2674 symtab_symbol_info (char *regexp
, namespace_enum kind
, int from_tty
)
2676 static char *classnames
[]
2678 {"variable", "function", "type", "method"};
2679 struct symbol_search
*symbols
;
2680 struct symbol_search
*p
;
2681 struct cleanup
*old_chain
;
2682 char *last_filename
= NULL
;
2685 /* must make sure that if we're interrupted, symbols gets freed */
2686 search_symbols (regexp
, kind
, 0, (char **) NULL
, &symbols
);
2687 old_chain
= make_cleanup_free_search_symbols (symbols
);
2689 printf_filtered (regexp
2690 ? "All %ss matching regular expression \"%s\":\n"
2691 : "All defined %ss:\n",
2692 classnames
[(int) (kind
- VARIABLES_NAMESPACE
)], regexp
);
2694 for (p
= symbols
; p
!= NULL
; p
= p
->next
)
2698 if (p
->msymbol
!= NULL
)
2702 printf_filtered ("\nNon-debugging symbols:\n");
2705 print_msymbol_info (p
->msymbol
);
2709 print_symbol_info (kind
,
2714 last_filename
= p
->symtab
->filename
;
2718 do_cleanups (old_chain
);
2722 variables_info (char *regexp
, int from_tty
)
2724 symtab_symbol_info (regexp
, VARIABLES_NAMESPACE
, from_tty
);
2728 functions_info (char *regexp
, int from_tty
)
2730 symtab_symbol_info (regexp
, FUNCTIONS_NAMESPACE
, from_tty
);
2735 types_info (char *regexp
, int from_tty
)
2737 symtab_symbol_info (regexp
, TYPES_NAMESPACE
, from_tty
);
2741 /* Tiemann says: "info methods was never implemented." */
2743 methods_info (char *regexp
)
2745 symtab_symbol_info (regexp
, METHODS_NAMESPACE
, 0, from_tty
);
2749 /* Breakpoint all functions matching regular expression. */
2752 rbreak_command_wrapper (char *regexp
, int from_tty
)
2754 rbreak_command (regexp
, from_tty
);
2758 rbreak_command (char *regexp
, int from_tty
)
2760 struct symbol_search
*ss
;
2761 struct symbol_search
*p
;
2762 struct cleanup
*old_chain
;
2764 search_symbols (regexp
, FUNCTIONS_NAMESPACE
, 0, (char **) NULL
, &ss
);
2765 old_chain
= make_cleanup_free_search_symbols (ss
);
2767 for (p
= ss
; p
!= NULL
; p
= p
->next
)
2769 if (p
->msymbol
== NULL
)
2771 char *string
= (char *) alloca (strlen (p
->symtab
->filename
)
2772 + strlen (SYMBOL_NAME (p
->symbol
))
2774 strcpy (string
, p
->symtab
->filename
);
2775 strcat (string
, ":'");
2776 strcat (string
, SYMBOL_NAME (p
->symbol
));
2777 strcat (string
, "'");
2778 break_command (string
, from_tty
);
2779 print_symbol_info (FUNCTIONS_NAMESPACE
,
2783 p
->symtab
->filename
);
2787 break_command (SYMBOL_NAME (p
->msymbol
), from_tty
);
2788 printf_filtered ("<function, no debug info> %s;\n",
2789 SYMBOL_SOURCE_NAME (p
->msymbol
));
2793 do_cleanups (old_chain
);
2797 /* Return Nonzero if block a is lexically nested within block b,
2798 or if a and b have the same pc range.
2799 Return zero otherwise. */
2801 contained_in (struct block
*a
, struct block
*b
)
2805 return BLOCK_START (a
) >= BLOCK_START (b
)
2806 && BLOCK_END (a
) <= BLOCK_END (b
);
2810 /* Helper routine for make_symbol_completion_list. */
2812 static int return_val_size
;
2813 static int return_val_index
;
2814 static char **return_val
;
2816 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
2818 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
2819 /* Put only the mangled name on the list. */ \
2820 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
2821 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
2822 completion_list_add_name \
2823 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
2825 completion_list_add_name \
2826 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
2829 /* Test to see if the symbol specified by SYMNAME (which is already
2830 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
2831 characters. If so, add it to the current completion list. */
2834 completion_list_add_name (char *symname
, char *sym_text
, int sym_text_len
,
2835 char *text
, char *word
)
2840 /* clip symbols that cannot match */
2842 if (strncmp (symname
, sym_text
, sym_text_len
) != 0)
2847 /* Clip any symbol names that we've already considered. (This is a
2848 time optimization) */
2850 for (i
= 0; i
< return_val_index
; ++i
)
2852 if (STREQ (symname
, return_val
[i
]))
2858 /* We have a match for a completion, so add SYMNAME to the current list
2859 of matches. Note that the name is moved to freshly malloc'd space. */
2863 if (word
== sym_text
)
2865 new = xmalloc (strlen (symname
) + 5);
2866 strcpy (new, symname
);
2868 else if (word
> sym_text
)
2870 /* Return some portion of symname. */
2871 new = xmalloc (strlen (symname
) + 5);
2872 strcpy (new, symname
+ (word
- sym_text
));
2876 /* Return some of SYM_TEXT plus symname. */
2877 new = xmalloc (strlen (symname
) + (sym_text
- word
) + 5);
2878 strncpy (new, word
, sym_text
- word
);
2879 new[sym_text
- word
] = '\0';
2880 strcat (new, symname
);
2883 /* Recheck for duplicates if we intend to add a modified symbol. */
2884 if (word
!= sym_text
)
2886 for (i
= 0; i
< return_val_index
; ++i
)
2888 if (STREQ (new, return_val
[i
]))
2896 if (return_val_index
+ 3 > return_val_size
)
2898 newsize
= (return_val_size
*= 2) * sizeof (char *);
2899 return_val
= (char **) xrealloc ((char *) return_val
, newsize
);
2901 return_val
[return_val_index
++] = new;
2902 return_val
[return_val_index
] = NULL
;
2906 /* Return a NULL terminated array of all symbols (regardless of class) which
2907 begin by matching TEXT. If the answer is no symbols, then the return value
2908 is an array which contains only a NULL pointer.
2910 Problem: All of the symbols have to be copied because readline frees them.
2911 I'm not going to worry about this; hopefully there won't be that many. */
2914 make_symbol_completion_list (char *text
, char *word
)
2916 register struct symbol
*sym
;
2917 register struct symtab
*s
;
2918 register struct partial_symtab
*ps
;
2919 register struct minimal_symbol
*msymbol
;
2920 register struct objfile
*objfile
;
2921 register struct block
*b
, *surrounding_static_block
= 0;
2923 struct partial_symbol
**psym
;
2924 /* The symbol we are completing on. Points in same buffer as text. */
2926 /* Length of sym_text. */
2929 /* Now look for the symbol we are supposed to complete on.
2930 FIXME: This should be language-specific. */
2934 char *quote_pos
= NULL
;
2936 /* First see if this is a quoted string. */
2938 for (p
= text
; *p
!= '\0'; ++p
)
2940 if (quote_found
!= '\0')
2942 if (*p
== quote_found
)
2943 /* Found close quote. */
2945 else if (*p
== '\\' && p
[1] == quote_found
)
2946 /* A backslash followed by the quote character
2947 doesn't end the string. */
2950 else if (*p
== '\'' || *p
== '"')
2956 if (quote_found
== '\'')
2957 /* A string within single quotes can be a symbol, so complete on it. */
2958 sym_text
= quote_pos
+ 1;
2959 else if (quote_found
== '"')
2960 /* A double-quoted string is never a symbol, nor does it make sense
2961 to complete it any other way. */
2965 /* It is not a quoted string. Break it based on the characters
2966 which are in symbols. */
2969 if (isalnum (p
[-1]) || p
[-1] == '_' || p
[-1] == '\0')
2978 sym_text_len
= strlen (sym_text
);
2980 return_val_size
= 100;
2981 return_val_index
= 0;
2982 return_val
= (char **) xmalloc ((return_val_size
+ 1) * sizeof (char *));
2983 return_val
[0] = NULL
;
2985 /* Look through the partial symtabs for all symbols which begin
2986 by matching SYM_TEXT. Add each one that you find to the list. */
2988 ALL_PSYMTABS (objfile
, ps
)
2990 /* If the psymtab's been read in we'll get it when we search
2991 through the blockvector. */
2995 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
2996 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
2997 + ps
->n_global_syms
);
3000 /* If interrupted, then quit. */
3002 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
3005 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
3006 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
3007 + ps
->n_static_syms
);
3011 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
3015 /* At this point scan through the misc symbol vectors and add each
3016 symbol you find to the list. Eventually we want to ignore
3017 anything that isn't a text symbol (everything else will be
3018 handled by the psymtab code above). */
3020 ALL_MSYMBOLS (objfile
, msymbol
)
3023 COMPLETION_LIST_ADD_SYMBOL (msymbol
, sym_text
, sym_text_len
, text
, word
);
3026 /* Search upwards from currently selected frame (so that we can
3027 complete on local vars. */
3029 for (b
= get_selected_block (); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
3031 if (!BLOCK_SUPERBLOCK (b
))
3033 surrounding_static_block
= b
; /* For elmin of dups */
3036 /* Also catch fields of types defined in this places which match our
3037 text string. Only complete on types visible from current context. */
3039 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3041 sym
= BLOCK_SYM (b
, i
);
3042 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3043 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
3045 struct type
*t
= SYMBOL_TYPE (sym
);
3046 enum type_code c
= TYPE_CODE (t
);
3048 if (c
== TYPE_CODE_UNION
|| c
== TYPE_CODE_STRUCT
)
3050 for (j
= TYPE_N_BASECLASSES (t
); j
< TYPE_NFIELDS (t
); j
++)
3052 if (TYPE_FIELD_NAME (t
, j
))
3054 completion_list_add_name (TYPE_FIELD_NAME (t
, j
),
3055 sym_text
, sym_text_len
, text
, word
);
3063 /* Go through the symtabs and check the externs and statics for
3064 symbols which match. */
3066 ALL_SYMTABS (objfile
, s
)
3069 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3070 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3072 sym
= BLOCK_SYM (b
, i
);
3073 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3077 ALL_SYMTABS (objfile
, s
)
3080 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3081 /* Don't do this block twice. */
3082 if (b
== surrounding_static_block
)
3084 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3086 sym
= BLOCK_SYM (b
, i
);
3087 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3091 return (return_val
);
3094 /* Determine if PC is in the prologue of a function. The prologue is the area
3095 between the first instruction of a function, and the first executable line.
3096 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
3098 If non-zero, func_start is where we think the prologue starts, possibly
3099 by previous examination of symbol table information.
3103 in_prologue (CORE_ADDR pc
, CORE_ADDR func_start
)
3105 struct symtab_and_line sal
;
3106 CORE_ADDR func_addr
, func_end
;
3108 /* We have several sources of information we can consult to figure
3110 - Compilers usually emit line number info that marks the prologue
3111 as its own "source line". So the ending address of that "line"
3112 is the end of the prologue. If available, this is the most
3114 - The minimal symbols and partial symbols, which can usually tell
3115 us the starting and ending addresses of a function.
3116 - If we know the function's start address, we can call the
3117 architecture-defined SKIP_PROLOGUE function to analyze the
3118 instruction stream and guess where the prologue ends.
3119 - Our `func_start' argument; if non-zero, this is the caller's
3120 best guess as to the function's entry point. At the time of
3121 this writing, handle_inferior_event doesn't get this right, so
3122 it should be our last resort. */
3124 /* Consult the partial symbol table, to find which function
3126 if (! find_pc_partial_function (pc
, NULL
, &func_addr
, &func_end
))
3128 CORE_ADDR prologue_end
;
3130 /* We don't even have minsym information, so fall back to using
3131 func_start, if given. */
3133 return 1; /* We *might* be in a prologue. */
3135 prologue_end
= SKIP_PROLOGUE (func_start
);
3137 return func_start
<= pc
&& pc
< prologue_end
;
3140 /* If we have line number information for the function, that's
3141 usually pretty reliable. */
3142 sal
= find_pc_line (func_addr
, 0);
3144 /* Now sal describes the source line at the function's entry point,
3145 which (by convention) is the prologue. The end of that "line",
3146 sal.end, is the end of the prologue.
3148 Note that, for functions whose source code is all on a single
3149 line, the line number information doesn't always end up this way.
3150 So we must verify that our purported end-of-prologue address is
3151 *within* the function, not at its start or end. */
3153 || sal
.end
<= func_addr
3154 || func_end
<= sal
.end
)
3156 /* We don't have any good line number info, so use the minsym
3157 information, together with the architecture-specific prologue
3159 CORE_ADDR prologue_end
= SKIP_PROLOGUE (func_addr
);
3161 return func_addr
<= pc
&& pc
< prologue_end
;
3164 /* We have line number info, and it looks good. */
3165 return func_addr
<= pc
&& pc
< sal
.end
;
3169 /* Begin overload resolution functions */
3170 /* Helper routine for make_symbol_completion_list. */
3172 static int sym_return_val_size
;
3173 static int sym_return_val_index
;
3174 static struct symbol
**sym_return_val
;
3176 /* Test to see if the symbol specified by SYMNAME (which is already
3177 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3178 characters. If so, add it to the current completion list. */
3181 overload_list_add_symbol (struct symbol
*sym
, char *oload_name
)
3186 /* Get the demangled name without parameters */
3187 char *sym_name
= cplus_demangle (SYMBOL_NAME (sym
), DMGL_ARM
| DMGL_ANSI
);
3190 sym_name
= (char *) xmalloc (strlen (SYMBOL_NAME (sym
)) + 1);
3191 strcpy (sym_name
, SYMBOL_NAME (sym
));
3194 /* skip symbols that cannot match */
3195 if (strcmp (sym_name
, oload_name
) != 0)
3201 /* If there is no type information, we can't do anything, so skip */
3202 if (SYMBOL_TYPE (sym
) == NULL
)
3205 /* skip any symbols that we've already considered. */
3206 for (i
= 0; i
< sym_return_val_index
; ++i
)
3207 if (!strcmp (SYMBOL_NAME (sym
), SYMBOL_NAME (sym_return_val
[i
])))
3210 /* We have a match for an overload instance, so add SYM to the current list
3211 * of overload instances */
3212 if (sym_return_val_index
+ 3 > sym_return_val_size
)
3214 newsize
= (sym_return_val_size
*= 2) * sizeof (struct symbol
*);
3215 sym_return_val
= (struct symbol
**) xrealloc ((char *) sym_return_val
, newsize
);
3217 sym_return_val
[sym_return_val_index
++] = sym
;
3218 sym_return_val
[sym_return_val_index
] = NULL
;
3223 /* Return a null-terminated list of pointers to function symbols that
3224 * match name of the supplied symbol FSYM.
3225 * This is used in finding all overloaded instances of a function name.
3226 * This has been modified from make_symbol_completion_list. */
3230 make_symbol_overload_list (struct symbol
*fsym
)
3232 register struct symbol
*sym
;
3233 register struct symtab
*s
;
3234 register struct partial_symtab
*ps
;
3235 register struct objfile
*objfile
;
3236 register struct block
*b
, *surrounding_static_block
= 0;
3238 /* The name we are completing on. */
3239 char *oload_name
= NULL
;
3240 /* Length of name. */
3241 int oload_name_len
= 0;
3243 /* Look for the symbol we are supposed to complete on.
3244 * FIXME: This should be language-specific. */
3246 oload_name
= cplus_demangle (SYMBOL_NAME (fsym
), DMGL_ARM
| DMGL_ANSI
);
3249 oload_name
= (char *) xmalloc (strlen (SYMBOL_NAME (fsym
)) + 1);
3250 strcpy (oload_name
, SYMBOL_NAME (fsym
));
3252 oload_name_len
= strlen (oload_name
);
3254 sym_return_val_size
= 100;
3255 sym_return_val_index
= 0;
3256 sym_return_val
= (struct symbol
**) xmalloc ((sym_return_val_size
+ 1) * sizeof (struct symbol
*));
3257 sym_return_val
[0] = NULL
;
3259 /* Look through the partial symtabs for all symbols which begin
3260 by matching OLOAD_NAME. Make sure we read that symbol table in. */
3262 ALL_PSYMTABS (objfile
, ps
)
3264 struct partial_symbol
**psym
;
3266 /* If the psymtab's been read in we'll get it when we search
3267 through the blockvector. */
3271 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
3272 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
3273 + ps
->n_global_syms
);
3276 /* If interrupted, then quit. */
3278 /* This will cause the symbol table to be read if it has not yet been */
3279 s
= PSYMTAB_TO_SYMTAB (ps
);
3282 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
3283 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
3284 + ps
->n_static_syms
);
3288 /* This will cause the symbol table to be read if it has not yet been */
3289 s
= PSYMTAB_TO_SYMTAB (ps
);
3293 /* Search upwards from currently selected frame (so that we can
3294 complete on local vars. */
3296 for (b
= get_selected_block (); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
3298 if (!BLOCK_SUPERBLOCK (b
))
3300 surrounding_static_block
= b
; /* For elimination of dups */
3303 /* Also catch fields of types defined in this places which match our
3304 text string. Only complete on types visible from current context. */
3306 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3308 sym
= BLOCK_SYM (b
, i
);
3309 overload_list_add_symbol (sym
, oload_name
);
3313 /* Go through the symtabs and check the externs and statics for
3314 symbols which match. */
3316 ALL_SYMTABS (objfile
, s
)
3319 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3320 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3322 sym
= BLOCK_SYM (b
, i
);
3323 overload_list_add_symbol (sym
, oload_name
);
3327 ALL_SYMTABS (objfile
, s
)
3330 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3331 /* Don't do this block twice. */
3332 if (b
== surrounding_static_block
)
3334 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3336 sym
= BLOCK_SYM (b
, i
);
3337 overload_list_add_symbol (sym
, oload_name
);
3343 return (sym_return_val
);
3346 /* End of overload resolution functions */
3348 struct symtabs_and_lines
3349 decode_line_spec (char *string
, int funfirstline
)
3351 struct symtabs_and_lines sals
;
3353 error ("Empty line specification.");
3354 sals
= decode_line_1 (&string
, funfirstline
,
3355 current_source_symtab
, current_source_line
,
3358 error ("Junk at end of line specification: %s", string
);
3363 _initialize_symtab (void)
3365 add_info ("variables", variables_info
,
3366 "All global and static variable names, or those matching REGEXP.");
3368 add_com ("whereis", class_info
, variables_info
,
3369 "All global and static variable names, or those matching REGEXP.");
3371 add_info ("functions", functions_info
,
3372 "All function names, or those matching REGEXP.");
3375 /* FIXME: This command has at least the following problems:
3376 1. It prints builtin types (in a very strange and confusing fashion).
3377 2. It doesn't print right, e.g. with
3378 typedef struct foo *FOO
3379 type_print prints "FOO" when we want to make it (in this situation)
3380 print "struct foo *".
3381 I also think "ptype" or "whatis" is more likely to be useful (but if
3382 there is much disagreement "info types" can be fixed). */
3383 add_info ("types", types_info
,
3384 "All type names, or those matching REGEXP.");
3387 add_info ("methods", methods_info
,
3388 "All method names, or those matching REGEXP::REGEXP.\n\
3389 If the class qualifier is omitted, it is assumed to be the current scope.\n\
3390 If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
3393 add_info ("sources", sources_info
,
3394 "Source files in the program.");
3396 add_com ("rbreak", class_breakpoint
, rbreak_command
,
3397 "Set a breakpoint for all functions matching REGEXP.");
3401 add_com ("lf", class_info
, sources_info
, "Source files in the program");
3402 add_com ("lg", class_info
, variables_info
,
3403 "All global and static variable names, or those matching REGEXP.");
3406 /* Initialize the one built-in type that isn't language dependent... */
3407 builtin_type_error
= init_type (TYPE_CODE_ERROR
, 0, 0,
3408 "<unknown type>", (struct objfile
*) NULL
);