1 /* Symbol table lookup for the GNU debugger, GDB.
2 Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
3 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
32 #include "call-cmds.h"
33 #include "gdb_regex.h"
34 #include "expression.h"
41 #include <sys/types.h>
43 #include "gdb_string.h"
47 /* Prototype for one function in parser-defs.h,
48 instead of including that entire file. */
50 extern char *find_template_name_end (char *);
52 /* Prototypes for local functions */
54 static void completion_list_add_name (char *, char *, int, char *, char *);
56 static void rbreak_command (char *, int);
58 static void types_info (char *, int);
60 static void functions_info (char *, int);
62 static void variables_info (char *, int);
64 static void sources_info (char *, int);
66 static void output_source_filename (char *, int *);
68 static int find_line_common (struct linetable
*, int, int *);
70 /* This one is used by linespec.c */
72 char *operator_chars (char *p
, char **end
);
74 static struct partial_symbol
*lookup_partial_symbol (struct partial_symtab
*,
78 static struct symtab
*lookup_symtab_1 (char *);
80 static struct symbol
*lookup_symbol_aux (const char *name
, const
81 struct block
*block
, const
82 namespace_enum
namespace, int
83 *is_a_field_of_this
, struct
87 static struct symbol
*find_active_alias (struct symbol
*sym
, CORE_ADDR addr
);
89 /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
90 /* Signals the presence of objects compiled by HP compilers */
91 int hp_som_som_object_present
= 0;
93 static void fixup_section (struct general_symbol_info
*, struct objfile
*);
95 static int file_matches (char *, char **, int);
97 static void print_symbol_info (namespace_enum
,
98 struct symtab
*, struct symbol
*, int, char *);
100 static void print_msymbol_info (struct minimal_symbol
*);
102 static void symtab_symbol_info (char *, namespace_enum
, int);
104 static void overload_list_add_symbol (struct symbol
*sym
, char *oload_name
);
106 void _initialize_symtab (void);
110 /* The single non-language-specific builtin type */
111 struct type
*builtin_type_error
;
113 /* Block in which the most recently searched-for symbol was found.
114 Might be better to make this a parameter to lookup_symbol and
117 const struct block
*block_found
;
119 char no_symtab_msg
[] = "No symbol table is loaded. Use the \"file\" command.";
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 free (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 (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 (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
))
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
))
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_MATCHES_NAME (sym
, name
))
1269 /* Here if block isn't sorted, or we fail to find a match during the
1270 binary search above. If during the binary search above, we find a
1271 symbol which is a C++ symbol, then we have re-enabled the linear
1272 search flag which was reset when starting the binary search.
1274 This loop is equivalent to the loop above, but hacked greatly for speed.
1276 Note that parameter symbols do not always show up last in the
1277 list; this loop makes sure to take anything else other than
1278 parameter symbols first; it only uses parameter symbols as a
1279 last resort. Note that this only takes up extra computation
1282 if (do_linear_search
)
1284 top
= BLOCK_NSYMS (block
);
1288 sym
= BLOCK_SYM (block
, bot
);
1289 if (SYMBOL_NAMESPACE (sym
) == namespace &&
1290 SYMBOL_MATCHES_NAME (sym
, name
))
1292 /* If SYM has aliases, then use any alias that is active
1293 at the current PC. If no alias is active at the current
1294 PC, then use the main symbol.
1296 ?!? Is checking the current pc correct? Is this routine
1297 ever called to look up a symbol from another context?
1299 FIXME: No, it's not correct. If someone sets a
1300 conditional breakpoint at an address, then the
1301 breakpoint's `struct expression' should refer to the
1302 `struct symbol' appropriate for the breakpoint's
1303 address, which may not be the PC.
1305 Even if it were never called from another context,
1306 it's totally bizarre for lookup_symbol's behavior to
1307 depend on the value of the inferior's current PC. We
1308 should pass in the appropriate PC as well as the
1309 block. The interface to lookup_symbol should change
1310 to require the caller to provide a PC. */
1312 if (SYMBOL_ALIASES (sym
))
1313 sym
= find_active_alias (sym
, read_pc ());
1316 if (SYMBOL_CLASS (sym
) != LOC_ARG
&&
1317 SYMBOL_CLASS (sym
) != LOC_LOCAL_ARG
&&
1318 SYMBOL_CLASS (sym
) != LOC_REF_ARG
&&
1319 SYMBOL_CLASS (sym
) != LOC_REGPARM
&&
1320 SYMBOL_CLASS (sym
) != LOC_REGPARM_ADDR
&&
1321 SYMBOL_CLASS (sym
) != LOC_BASEREG_ARG
)
1329 return (sym_found
); /* Will be NULL if not found. */
1332 /* Given a main symbol SYM and ADDR, search through the alias
1333 list to determine if an alias is active at ADDR and return
1336 If no alias is active, then return SYM. */
1338 static struct symbol
*
1339 find_active_alias (struct symbol
*sym
, CORE_ADDR addr
)
1341 struct range_list
*r
;
1342 struct alias_list
*aliases
;
1344 /* If we have aliases, check them first. */
1345 aliases
= SYMBOL_ALIASES (sym
);
1349 if (!SYMBOL_RANGES (aliases
->sym
))
1350 return aliases
->sym
;
1351 for (r
= SYMBOL_RANGES (aliases
->sym
); r
; r
= r
->next
)
1353 if (r
->start
<= addr
&& r
->end
> addr
)
1354 return aliases
->sym
;
1356 aliases
= aliases
->next
;
1359 /* Nothing found, return the main symbol. */
1364 /* Return the symbol for the function which contains a specified
1365 lexical block, described by a struct block BL. */
1368 block_function (struct block
*bl
)
1370 while (BLOCK_FUNCTION (bl
) == 0 && BLOCK_SUPERBLOCK (bl
) != 0)
1371 bl
= BLOCK_SUPERBLOCK (bl
);
1373 return BLOCK_FUNCTION (bl
);
1376 /* Find the symtab associated with PC and SECTION. Look through the
1377 psymtabs and read in another symtab if necessary. */
1380 find_pc_sect_symtab (CORE_ADDR pc
, asection
*section
)
1382 register struct block
*b
;
1383 struct blockvector
*bv
;
1384 register struct symtab
*s
= NULL
;
1385 register struct symtab
*best_s
= NULL
;
1386 register struct partial_symtab
*ps
;
1387 register struct objfile
*objfile
;
1388 CORE_ADDR distance
= 0;
1390 /* Search all symtabs for the one whose file contains our address, and which
1391 is the smallest of all the ones containing the address. This is designed
1392 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1393 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1394 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1396 This happens for native ecoff format, where code from included files
1397 gets its own symtab. The symtab for the included file should have
1398 been read in already via the dependency mechanism.
1399 It might be swifter to create several symtabs with the same name
1400 like xcoff does (I'm not sure).
1402 It also happens for objfiles that have their functions reordered.
1403 For these, the symtab we are looking for is not necessarily read in. */
1405 ALL_SYMTABS (objfile
, s
)
1407 bv
= BLOCKVECTOR (s
);
1408 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1410 if (BLOCK_START (b
) <= pc
1411 && BLOCK_END (b
) > pc
1413 || BLOCK_END (b
) - BLOCK_START (b
) < distance
))
1415 /* For an objfile that has its functions reordered,
1416 find_pc_psymtab will find the proper partial symbol table
1417 and we simply return its corresponding symtab. */
1418 /* In order to better support objfiles that contain both
1419 stabs and coff debugging info, we continue on if a psymtab
1421 if ((objfile
->flags
& OBJF_REORDERED
) && objfile
->psymtabs
)
1423 ps
= find_pc_sect_psymtab (pc
, section
);
1425 return PSYMTAB_TO_SYMTAB (ps
);
1431 for (i
= 0; i
< b
->nsyms
; i
++)
1433 fixup_symbol_section (b
->sym
[i
], objfile
);
1434 if (section
== SYMBOL_BFD_SECTION (b
->sym
[i
]))
1438 continue; /* no symbol in this symtab matches section */
1440 distance
= BLOCK_END (b
) - BLOCK_START (b
);
1449 ps
= find_pc_sect_psymtab (pc
, section
);
1453 /* Might want to error() here (in case symtab is corrupt and
1454 will cause a core dump), but maybe we can successfully
1455 continue, so let's not. */
1457 (Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n",
1459 s
= PSYMTAB_TO_SYMTAB (ps
);
1464 /* Find the symtab associated with PC. Look through the psymtabs and
1465 read in another symtab if necessary. Backward compatibility, no section */
1468 find_pc_symtab (CORE_ADDR pc
)
1470 return find_pc_sect_symtab (pc
, find_pc_mapped_section (pc
));
1476 /* Find the closest symbol value (of any sort -- function or variable)
1477 for a given address value. Slow but complete. (currently unused,
1478 mainly because it is too slow. We could fix it if each symtab and
1479 psymtab had contained in it the addresses ranges of each of its
1480 sections, which also would be required to make things like "info
1481 line *0x2345" cause psymtabs to be converted to symtabs). */
1484 find_addr_symbol (CORE_ADDR addr
, struct symtab
**symtabp
, CORE_ADDR
*symaddrp
)
1486 struct symtab
*symtab
, *best_symtab
;
1487 struct objfile
*objfile
;
1488 register int bot
, top
;
1489 register struct symbol
*sym
;
1490 register CORE_ADDR sym_addr
;
1491 struct block
*block
;
1494 /* Info on best symbol seen so far */
1496 register CORE_ADDR best_sym_addr
= 0;
1497 struct symbol
*best_sym
= 0;
1499 /* FIXME -- we should pull in all the psymtabs, too! */
1500 ALL_SYMTABS (objfile
, symtab
)
1502 /* Search the global and static blocks in this symtab for
1503 the closest symbol-address to the desired address. */
1505 for (blocknum
= GLOBAL_BLOCK
; blocknum
<= STATIC_BLOCK
; blocknum
++)
1508 block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab
), blocknum
);
1509 top
= BLOCK_NSYMS (block
);
1510 for (bot
= 0; bot
< top
; bot
++)
1512 sym
= BLOCK_SYM (block
, bot
);
1513 switch (SYMBOL_CLASS (sym
))
1517 sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
1521 sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
1522 /* An indirect symbol really lives at *sym_addr,
1523 * so an indirection needs to be done.
1524 * However, I am leaving this commented out because it's
1525 * expensive, and it's possible that symbolization
1526 * could be done without an active process (in
1527 * case this read_memory will fail). RT
1528 sym_addr = read_memory_unsigned_integer
1529 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1534 sym_addr
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
1541 if (sym_addr
<= addr
)
1542 if (sym_addr
> best_sym_addr
)
1544 /* Quit if we found an exact match. */
1546 best_sym_addr
= sym_addr
;
1547 best_symtab
= symtab
;
1548 if (sym_addr
== addr
)
1557 *symtabp
= best_symtab
;
1559 *symaddrp
= best_sym_addr
;
1564 /* Find the source file and line number for a given PC value and SECTION.
1565 Return a structure containing a symtab pointer, a line number,
1566 and a pc range for the entire source line.
1567 The value's .pc field is NOT the specified pc.
1568 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1569 use the line that ends there. Otherwise, in that case, the line
1570 that begins there is used. */
1572 /* The big complication here is that a line may start in one file, and end just
1573 before the start of another file. This usually occurs when you #include
1574 code in the middle of a subroutine. To properly find the end of a line's PC
1575 range, we must search all symtabs associated with this compilation unit, and
1576 find the one whose first PC is closer than that of the next line in this
1579 /* If it's worth the effort, we could be using a binary search. */
1581 struct symtab_and_line
1582 find_pc_sect_line (CORE_ADDR pc
, struct sec
*section
, int notcurrent
)
1585 register struct linetable
*l
;
1588 register struct linetable_entry
*item
;
1589 struct symtab_and_line val
;
1590 struct blockvector
*bv
;
1591 struct minimal_symbol
*msymbol
;
1592 struct minimal_symbol
*mfunsym
;
1594 /* Info on best line seen so far, and where it starts, and its file. */
1596 struct linetable_entry
*best
= NULL
;
1597 CORE_ADDR best_end
= 0;
1598 struct symtab
*best_symtab
= 0;
1600 /* Store here the first line number
1601 of a file which contains the line at the smallest pc after PC.
1602 If we don't find a line whose range contains PC,
1603 we will use a line one less than this,
1604 with a range from the start of that file to the first line's pc. */
1605 struct linetable_entry
*alt
= NULL
;
1606 struct symtab
*alt_symtab
= 0;
1608 /* Info on best line seen in this file. */
1610 struct linetable_entry
*prev
;
1612 /* If this pc is not from the current frame,
1613 it is the address of the end of a call instruction.
1614 Quite likely that is the start of the following statement.
1615 But what we want is the statement containing the instruction.
1616 Fudge the pc to make sure we get that. */
1618 INIT_SAL (&val
); /* initialize to zeroes */
1623 /* elz: added this because this function returned the wrong
1624 information if the pc belongs to a stub (import/export)
1625 to call a shlib function. This stub would be anywhere between
1626 two functions in the target, and the line info was erroneously
1627 taken to be the one of the line before the pc.
1629 /* RT: Further explanation:
1631 * We have stubs (trampolines) inserted between procedures.
1633 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1634 * exists in the main image.
1636 * In the minimal symbol table, we have a bunch of symbols
1637 * sorted by start address. The stubs are marked as "trampoline",
1638 * the others appear as text. E.g.:
1640 * Minimal symbol table for main image
1641 * main: code for main (text symbol)
1642 * shr1: stub (trampoline symbol)
1643 * foo: code for foo (text symbol)
1645 * Minimal symbol table for "shr1" image:
1647 * shr1: code for shr1 (text symbol)
1650 * So the code below is trying to detect if we are in the stub
1651 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1652 * and if found, do the symbolization from the real-code address
1653 * rather than the stub address.
1655 * Assumptions being made about the minimal symbol table:
1656 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1657 * if we're really in the trampoline. If we're beyond it (say
1658 * we're in "foo" in the above example), it'll have a closer
1659 * symbol (the "foo" text symbol for example) and will not
1660 * return the trampoline.
1661 * 2. lookup_minimal_symbol_text() will find a real text symbol
1662 * corresponding to the trampoline, and whose address will
1663 * be different than the trampoline address. I put in a sanity
1664 * check for the address being the same, to avoid an
1665 * infinite recursion.
1667 msymbol
= lookup_minimal_symbol_by_pc (pc
);
1668 if (msymbol
!= NULL
)
1669 if (MSYMBOL_TYPE (msymbol
) == mst_solib_trampoline
)
1671 mfunsym
= lookup_minimal_symbol_text (SYMBOL_NAME (msymbol
), NULL
, NULL
);
1672 if (mfunsym
== NULL
)
1673 /* I eliminated this warning since it is coming out
1674 * in the following situation:
1675 * gdb shmain // test program with shared libraries
1676 * (gdb) break shr1 // function in shared lib
1677 * Warning: In stub for ...
1678 * In the above situation, the shared lib is not loaded yet,
1679 * so of course we can't find the real func/line info,
1680 * but the "break" still works, and the warning is annoying.
1681 * So I commented out the warning. RT */
1682 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1684 else if (SYMBOL_VALUE (mfunsym
) == SYMBOL_VALUE (msymbol
))
1685 /* Avoid infinite recursion */
1686 /* See above comment about why warning is commented out */
1687 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1690 return find_pc_line (SYMBOL_VALUE (mfunsym
), 0);
1694 s
= find_pc_sect_symtab (pc
, section
);
1697 /* if no symbol information, return previous pc */
1704 bv
= BLOCKVECTOR (s
);
1706 /* Look at all the symtabs that share this blockvector.
1707 They all have the same apriori range, that we found was right;
1708 but they have different line tables. */
1710 for (; s
&& BLOCKVECTOR (s
) == bv
; s
= s
->next
)
1712 /* Find the best line in this symtab. */
1719 /* I think len can be zero if the symtab lacks line numbers
1720 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1721 I'm not sure which, and maybe it depends on the symbol
1727 item
= l
->item
; /* Get first line info */
1729 /* Is this file's first line closer than the first lines of other files?
1730 If so, record this file, and its first line, as best alternate. */
1731 if (item
->pc
> pc
&& (!alt
|| item
->pc
< alt
->pc
))
1737 for (i
= 0; i
< len
; i
++, item
++)
1739 /* Leave prev pointing to the linetable entry for the last line
1740 that started at or before PC. */
1747 /* At this point, prev points at the line whose start addr is <= pc, and
1748 item points at the next line. If we ran off the end of the linetable
1749 (pc >= start of the last line), then prev == item. If pc < start of
1750 the first line, prev will not be set. */
1752 /* Is this file's best line closer than the best in the other files?
1753 If so, record this file, and its best line, as best so far. */
1755 if (prev
&& (!best
|| prev
->pc
> best
->pc
))
1759 /* If another line is in the linetable, and its PC is closer
1760 than the best_end we currently have, take it as best_end. */
1761 if (i
< len
&& (best_end
== 0 || best_end
> item
->pc
))
1762 best_end
= item
->pc
;
1769 { /* If we didn't find any line # info, just
1775 val
.symtab
= alt_symtab
;
1776 val
.line
= alt
->line
- 1;
1778 /* Don't return line 0, that means that we didn't find the line. */
1782 val
.pc
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1788 val
.symtab
= best_symtab
;
1789 val
.line
= best
->line
;
1791 if (best_end
&& (!alt
|| best_end
< alt
->pc
))
1796 val
.end
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1798 val
.section
= section
;
1802 /* Backward compatibility (no section) */
1804 struct symtab_and_line
1805 find_pc_line (CORE_ADDR pc
, int notcurrent
)
1809 section
= find_pc_overlay (pc
);
1810 if (pc_in_unmapped_range (pc
, section
))
1811 pc
= overlay_mapped_address (pc
, section
);
1812 return find_pc_sect_line (pc
, section
, notcurrent
);
1815 /* Find line number LINE in any symtab whose name is the same as
1818 If found, return the symtab that contains the linetable in which it was
1819 found, set *INDEX to the index in the linetable of the best entry
1820 found, and set *EXACT_MATCH nonzero if the value returned is an
1823 If not found, return NULL. */
1826 find_line_symtab (struct symtab
*symtab
, int line
, int *index
, int *exact_match
)
1830 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1834 struct linetable
*best_linetable
;
1835 struct symtab
*best_symtab
;
1837 /* First try looking it up in the given symtab. */
1838 best_linetable
= LINETABLE (symtab
);
1839 best_symtab
= symtab
;
1840 best_index
= find_line_common (best_linetable
, line
, &exact
);
1841 if (best_index
< 0 || !exact
)
1843 /* Didn't find an exact match. So we better keep looking for
1844 another symtab with the same name. In the case of xcoff,
1845 multiple csects for one source file (produced by IBM's FORTRAN
1846 compiler) produce multiple symtabs (this is unavoidable
1847 assuming csects can be at arbitrary places in memory and that
1848 the GLOBAL_BLOCK of a symtab has a begin and end address). */
1850 /* BEST is the smallest linenumber > LINE so far seen,
1851 or 0 if none has been seen so far.
1852 BEST_INDEX and BEST_LINETABLE identify the item for it. */
1855 struct objfile
*objfile
;
1858 if (best_index
>= 0)
1859 best
= best_linetable
->item
[best_index
].line
;
1863 ALL_SYMTABS (objfile
, s
)
1865 struct linetable
*l
;
1868 if (!STREQ (symtab
->filename
, s
->filename
))
1871 ind
= find_line_common (l
, line
, &exact
);
1881 if (best
== 0 || l
->item
[ind
].line
< best
)
1883 best
= l
->item
[ind
].line
;
1896 *index
= best_index
;
1898 *exact_match
= exact
;
1903 /* Set the PC value for a given source file and line number and return true.
1904 Returns zero for invalid line number (and sets the PC to 0).
1905 The source file is specified with a struct symtab. */
1908 find_line_pc (struct symtab
*symtab
, int line
, CORE_ADDR
*pc
)
1910 struct linetable
*l
;
1917 symtab
= find_line_symtab (symtab
, line
, &ind
, NULL
);
1920 l
= LINETABLE (symtab
);
1921 *pc
= l
->item
[ind
].pc
;
1928 /* Find the range of pc values in a line.
1929 Store the starting pc of the line into *STARTPTR
1930 and the ending pc (start of next line) into *ENDPTR.
1931 Returns 1 to indicate success.
1932 Returns 0 if could not find the specified line. */
1935 find_line_pc_range (struct symtab_and_line sal
, CORE_ADDR
*startptr
,
1938 CORE_ADDR startaddr
;
1939 struct symtab_and_line found_sal
;
1942 if (startaddr
== 0 && !find_line_pc (sal
.symtab
, sal
.line
, &startaddr
))
1945 /* This whole function is based on address. For example, if line 10 has
1946 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
1947 "info line *0x123" should say the line goes from 0x100 to 0x200
1948 and "info line *0x355" should say the line goes from 0x300 to 0x400.
1949 This also insures that we never give a range like "starts at 0x134
1950 and ends at 0x12c". */
1952 found_sal
= find_pc_sect_line (startaddr
, sal
.section
, 0);
1953 if (found_sal
.line
!= sal
.line
)
1955 /* The specified line (sal) has zero bytes. */
1956 *startptr
= found_sal
.pc
;
1957 *endptr
= found_sal
.pc
;
1961 *startptr
= found_sal
.pc
;
1962 *endptr
= found_sal
.end
;
1967 /* Given a line table and a line number, return the index into the line
1968 table for the pc of the nearest line whose number is >= the specified one.
1969 Return -1 if none is found. The value is >= 0 if it is an index.
1971 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
1974 find_line_common (register struct linetable
*l
, register int lineno
,
1980 /* BEST is the smallest linenumber > LINENO so far seen,
1981 or 0 if none has been seen so far.
1982 BEST_INDEX identifies the item for it. */
1984 int best_index
= -1;
1993 for (i
= 0; i
< len
; i
++)
1995 register struct linetable_entry
*item
= &(l
->item
[i
]);
1997 if (item
->line
== lineno
)
1999 /* Return the first (lowest address) entry which matches. */
2004 if (item
->line
> lineno
&& (best
== 0 || item
->line
< best
))
2011 /* If we got here, we didn't get an exact match. */
2018 find_pc_line_pc_range (CORE_ADDR pc
, CORE_ADDR
*startptr
, CORE_ADDR
*endptr
)
2020 struct symtab_and_line sal
;
2021 sal
= find_pc_line (pc
, 0);
2024 return sal
.symtab
!= 0;
2027 /* Given a function symbol SYM, find the symtab and line for the start
2029 If the argument FUNFIRSTLINE is nonzero, we want the first line
2030 of real code inside the function. */
2032 struct symtab_and_line
2033 find_function_start_sal (struct symbol
*sym
, int funfirstline
)
2036 struct symtab_and_line sal
;
2038 pc
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
2039 fixup_symbol_section (sym
, NULL
);
2041 { /* skip "first line" of function (which is actually its prologue) */
2042 asection
*section
= SYMBOL_BFD_SECTION (sym
);
2043 /* If function is in an unmapped overlay, use its unmapped LMA
2044 address, so that SKIP_PROLOGUE has something unique to work on */
2045 if (section_is_overlay (section
) &&
2046 !section_is_mapped (section
))
2047 pc
= overlay_unmapped_address (pc
, section
);
2049 pc
+= FUNCTION_START_OFFSET
;
2050 pc
= SKIP_PROLOGUE (pc
);
2052 /* For overlays, map pc back into its mapped VMA range */
2053 pc
= overlay_mapped_address (pc
, section
);
2055 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2057 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2058 /* Convex: no need to suppress code on first line, if any */
2061 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2062 line is still part of the same function. */
2064 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym
)) <= sal
.end
2065 && sal
.end
< BLOCK_END (SYMBOL_BLOCK_VALUE (sym
)))
2067 /* First pc of next line */
2069 /* Recalculate the line number (might not be N+1). */
2070 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2078 /* If P is of the form "operator[ \t]+..." where `...' is
2079 some legitimate operator text, return a pointer to the
2080 beginning of the substring of the operator text.
2081 Otherwise, return "". */
2083 operator_chars (char *p
, char **end
)
2086 if (strncmp (p
, "operator", 8))
2090 /* Don't get faked out by `operator' being part of a longer
2092 if (isalpha (*p
) || *p
== '_' || *p
== '$' || *p
== '\0')
2095 /* Allow some whitespace between `operator' and the operator symbol. */
2096 while (*p
== ' ' || *p
== '\t')
2099 /* Recognize 'operator TYPENAME'. */
2101 if (isalpha (*p
) || *p
== '_' || *p
== '$')
2103 register char *q
= p
+ 1;
2104 while (isalnum (*q
) || *q
== '_' || *q
== '$')
2129 if (p
[1] == '=' || p
[1] == p
[0])
2140 error ("`operator ()' must be specified without whitespace in `()'");
2145 error ("`operator ?:' must be specified without whitespace in `?:'");
2150 error ("`operator []' must be specified without whitespace in `[]'");
2154 error ("`operator %s' not supported", p
);
2162 /* Slave routine for sources_info. Force line breaks at ,'s.
2163 NAME is the name to print and *FIRST is nonzero if this is the first
2164 name printed. Set *FIRST to zero. */
2166 output_source_filename (char *name
, int *first
)
2168 /* Table of files printed so far. Since a single source file can
2169 result in several partial symbol tables, we need to avoid printing
2170 it more than once. Note: if some of the psymtabs are read in and
2171 some are not, it gets printed both under "Source files for which
2172 symbols have been read" and "Source files for which symbols will
2173 be read in on demand". I consider this a reasonable way to deal
2174 with the situation. I'm not sure whether this can also happen for
2175 symtabs; it doesn't hurt to check. */
2176 static char **tab
= NULL
;
2177 /* Allocated size of tab in elements.
2178 Start with one 256-byte block (when using GNU malloc.c).
2179 24 is the malloc overhead when range checking is in effect. */
2180 static int tab_alloc_size
= (256 - 24) / sizeof (char *);
2181 /* Current size of tab in elements. */
2182 static int tab_cur_size
;
2189 tab
= (char **) xmalloc (tab_alloc_size
* sizeof (*tab
));
2193 /* Is NAME in tab? */
2194 for (p
= tab
; p
< tab
+ tab_cur_size
; p
++)
2195 if (STREQ (*p
, name
))
2196 /* Yes; don't print it again. */
2198 /* No; add it to tab. */
2199 if (tab_cur_size
== tab_alloc_size
)
2201 tab_alloc_size
*= 2;
2202 tab
= (char **) xrealloc ((char *) tab
, tab_alloc_size
* sizeof (*tab
));
2204 tab
[tab_cur_size
++] = name
;
2212 printf_filtered (", ");
2216 fputs_filtered (name
, gdb_stdout
);
2220 sources_info (char *ignore
, int from_tty
)
2222 register struct symtab
*s
;
2223 register struct partial_symtab
*ps
;
2224 register struct objfile
*objfile
;
2227 if (!have_full_symbols () && !have_partial_symbols ())
2229 error (no_symtab_msg
);
2232 printf_filtered ("Source files for which symbols have been read in:\n\n");
2235 ALL_SYMTABS (objfile
, s
)
2237 output_source_filename (s
->filename
, &first
);
2239 printf_filtered ("\n\n");
2241 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
2244 ALL_PSYMTABS (objfile
, ps
)
2248 output_source_filename (ps
->filename
, &first
);
2251 printf_filtered ("\n");
2255 file_matches (char *file
, char *files
[], int nfiles
)
2259 if (file
!= NULL
&& nfiles
!= 0)
2261 for (i
= 0; i
< nfiles
; i
++)
2263 if (strcmp (files
[i
], basename (file
)) == 0)
2267 else if (nfiles
== 0)
2272 /* Free any memory associated with a search. */
2274 free_search_symbols (struct symbol_search
*symbols
)
2276 struct symbol_search
*p
;
2277 struct symbol_search
*next
;
2279 for (p
= symbols
; p
!= NULL
; p
= next
)
2287 do_free_search_symbols_cleanup (void *symbols
)
2289 free_search_symbols (symbols
);
2293 make_cleanup_free_search_symbols (struct symbol_search
*symbols
)
2295 return make_cleanup (do_free_search_symbols_cleanup
, symbols
);
2299 /* Search the symbol table for matches to the regular expression REGEXP,
2300 returning the results in *MATCHES.
2302 Only symbols of KIND are searched:
2303 FUNCTIONS_NAMESPACE - search all functions
2304 TYPES_NAMESPACE - search all type names
2305 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
2306 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
2307 and constants (enums)
2309 free_search_symbols should be called when *MATCHES is no longer needed.
2312 search_symbols (char *regexp
, namespace_enum kind
, int nfiles
, char *files
[],
2313 struct symbol_search
**matches
)
2315 register struct symtab
*s
;
2316 register struct partial_symtab
*ps
;
2317 register struct blockvector
*bv
;
2318 struct blockvector
*prev_bv
= 0;
2319 register struct block
*b
;
2322 register struct symbol
*sym
;
2323 struct partial_symbol
**psym
;
2324 struct objfile
*objfile
;
2325 struct minimal_symbol
*msymbol
;
2328 static enum minimal_symbol_type types
[]
2330 {mst_data
, mst_text
, mst_abs
, mst_unknown
};
2331 static enum minimal_symbol_type types2
[]
2333 {mst_bss
, mst_file_text
, mst_abs
, mst_unknown
};
2334 static enum minimal_symbol_type types3
[]
2336 {mst_file_data
, mst_solib_trampoline
, mst_abs
, mst_unknown
};
2337 static enum minimal_symbol_type types4
[]
2339 {mst_file_bss
, mst_text
, mst_abs
, mst_unknown
};
2340 enum minimal_symbol_type ourtype
;
2341 enum minimal_symbol_type ourtype2
;
2342 enum minimal_symbol_type ourtype3
;
2343 enum minimal_symbol_type ourtype4
;
2344 struct symbol_search
*sr
;
2345 struct symbol_search
*psr
;
2346 struct symbol_search
*tail
;
2347 struct cleanup
*old_chain
= NULL
;
2349 if (kind
< LABEL_NAMESPACE
)
2350 error ("must search on specific namespace");
2352 ourtype
= types
[(int) (kind
- VARIABLES_NAMESPACE
)];
2353 ourtype2
= types2
[(int) (kind
- VARIABLES_NAMESPACE
)];
2354 ourtype3
= types3
[(int) (kind
- VARIABLES_NAMESPACE
)];
2355 ourtype4
= types4
[(int) (kind
- VARIABLES_NAMESPACE
)];
2357 sr
= *matches
= NULL
;
2362 /* Make sure spacing is right for C++ operators.
2363 This is just a courtesy to make the matching less sensitive
2364 to how many spaces the user leaves between 'operator'
2365 and <TYPENAME> or <OPERATOR>. */
2367 char *opname
= operator_chars (regexp
, &opend
);
2370 int fix
= -1; /* -1 means ok; otherwise number of spaces needed. */
2371 if (isalpha (*opname
) || *opname
== '_' || *opname
== '$')
2373 /* There should 1 space between 'operator' and 'TYPENAME'. */
2374 if (opname
[-1] != ' ' || opname
[-2] == ' ')
2379 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
2380 if (opname
[-1] == ' ')
2383 /* If wrong number of spaces, fix it. */
2386 char *tmp
= (char *) alloca (opend
- opname
+ 10);
2387 sprintf (tmp
, "operator%.*s%s", fix
, " ", opname
);
2392 if (0 != (val
= re_comp (regexp
)))
2393 error ("Invalid regexp (%s): %s", val
, regexp
);
2396 /* Search through the partial symtabs *first* for all symbols
2397 matching the regexp. That way we don't have to reproduce all of
2398 the machinery below. */
2400 ALL_PSYMTABS (objfile
, ps
)
2402 struct partial_symbol
**bound
, **gbound
, **sbound
;
2408 gbound
= objfile
->global_psymbols
.list
+ ps
->globals_offset
+ ps
->n_global_syms
;
2409 sbound
= objfile
->static_psymbols
.list
+ ps
->statics_offset
+ ps
->n_static_syms
;
2412 /* Go through all of the symbols stored in a partial
2413 symtab in one loop. */
2414 psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
2419 if (bound
== gbound
&& ps
->n_static_syms
!= 0)
2421 psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
2432 /* If it would match (logic taken from loop below)
2433 load the file and go on to the next one */
2434 if (file_matches (ps
->filename
, files
, nfiles
)
2435 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (*psym
))
2436 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (*psym
) != LOC_TYPEDEF
2437 && SYMBOL_CLASS (*psym
) != LOC_BLOCK
)
2438 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
)
2439 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_TYPEDEF
)
2440 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
))))
2442 PSYMTAB_TO_SYMTAB (ps
);
2450 /* Here, we search through the minimal symbol tables for functions
2451 and variables that match, and force their symbols to be read.
2452 This is in particular necessary for demangled variable names,
2453 which are no longer put into the partial symbol tables.
2454 The symbol will then be found during the scan of symtabs below.
2456 For functions, find_pc_symtab should succeed if we have debug info
2457 for the function, for variables we have to call lookup_symbol
2458 to determine if the variable has debug info.
2459 If the lookup fails, set found_misc so that we will rescan to print
2460 any matching symbols without debug info.
2463 if (nfiles
== 0 && (kind
== VARIABLES_NAMESPACE
|| kind
== FUNCTIONS_NAMESPACE
))
2465 ALL_MSYMBOLS (objfile
, msymbol
)
2467 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
2468 MSYMBOL_TYPE (msymbol
) == ourtype2
||
2469 MSYMBOL_TYPE (msymbol
) == ourtype3
||
2470 MSYMBOL_TYPE (msymbol
) == ourtype4
)
2472 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
2474 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
)))
2476 if (kind
== FUNCTIONS_NAMESPACE
2477 || lookup_symbol (SYMBOL_NAME (msymbol
),
2478 (struct block
*) NULL
,
2480 0, (struct symtab
**) NULL
) == NULL
)
2488 ALL_SYMTABS (objfile
, s
)
2490 bv
= BLOCKVECTOR (s
);
2491 /* Often many files share a blockvector.
2492 Scan each blockvector only once so that
2493 we don't get every symbol many times.
2494 It happens that the first symtab in the list
2495 for any given blockvector is the main file. */
2497 for (i
= GLOBAL_BLOCK
; i
<= STATIC_BLOCK
; i
++)
2499 b
= BLOCKVECTOR_BLOCK (bv
, i
);
2500 /* Skip the sort if this block is always sorted. */
2501 if (!BLOCK_SHOULD_SORT (b
))
2502 sort_block_syms (b
);
2503 for (j
= 0; j
< BLOCK_NSYMS (b
); j
++)
2506 sym
= BLOCK_SYM (b
, j
);
2507 if (file_matches (s
->filename
, files
, nfiles
)
2508 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (sym
))
2509 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (sym
) != LOC_TYPEDEF
2510 && SYMBOL_CLASS (sym
) != LOC_BLOCK
2511 && SYMBOL_CLASS (sym
) != LOC_CONST
)
2512 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
)
2513 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
2514 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
))))
2517 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
2521 psr
->msymbol
= NULL
;
2526 old_chain
= make_cleanup_free_search_symbols (sr
);
2537 /* If there are no eyes, avoid all contact. I mean, if there are
2538 no debug symbols, then print directly from the msymbol_vector. */
2540 if (found_misc
|| kind
!= FUNCTIONS_NAMESPACE
)
2542 ALL_MSYMBOLS (objfile
, msymbol
)
2544 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
2545 MSYMBOL_TYPE (msymbol
) == ourtype2
||
2546 MSYMBOL_TYPE (msymbol
) == ourtype3
||
2547 MSYMBOL_TYPE (msymbol
) == ourtype4
)
2549 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
2551 /* Functions: Look up by address. */
2552 if (kind
!= FUNCTIONS_NAMESPACE
||
2553 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
))))
2555 /* Variables/Absolutes: Look up by name */
2556 if (lookup_symbol (SYMBOL_NAME (msymbol
),
2557 (struct block
*) NULL
, VAR_NAMESPACE
,
2558 0, (struct symtab
**) NULL
) == NULL
)
2561 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
2563 psr
->msymbol
= msymbol
;
2570 old_chain
= make_cleanup_free_search_symbols (sr
);
2584 discard_cleanups (old_chain
);
2587 /* Helper function for symtab_symbol_info, this function uses
2588 the data returned from search_symbols() to print information
2589 regarding the match to gdb_stdout.
2592 print_symbol_info (namespace_enum kind
, struct symtab
*s
, struct symbol
*sym
,
2593 int block
, char *last
)
2595 if (last
== NULL
|| strcmp (last
, s
->filename
) != 0)
2597 fputs_filtered ("\nFile ", gdb_stdout
);
2598 fputs_filtered (s
->filename
, gdb_stdout
);
2599 fputs_filtered (":\n", gdb_stdout
);
2602 if (kind
!= TYPES_NAMESPACE
&& block
== STATIC_BLOCK
)
2603 printf_filtered ("static ");
2605 /* Typedef that is not a C++ class */
2606 if (kind
== TYPES_NAMESPACE
2607 && SYMBOL_NAMESPACE (sym
) != STRUCT_NAMESPACE
)
2608 typedef_print (SYMBOL_TYPE (sym
), sym
, gdb_stdout
);
2609 /* variable, func, or typedef-that-is-c++-class */
2610 else if (kind
< TYPES_NAMESPACE
||
2611 (kind
== TYPES_NAMESPACE
&&
2612 SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
))
2614 type_print (SYMBOL_TYPE (sym
),
2615 (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
2616 ? "" : SYMBOL_SOURCE_NAME (sym
)),
2619 printf_filtered (";\n");
2624 /* Tiemann says: "info methods was never implemented." */
2625 char *demangled_name
;
2626 c_type_print_base (TYPE_FN_FIELD_TYPE (t
, block
),
2628 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t
, block
),
2630 if (TYPE_FN_FIELD_STUB (t
, block
))
2631 check_stub_method (TYPE_DOMAIN_TYPE (type
), j
, block
);
2633 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t
, block
),
2634 DMGL_ANSI
| DMGL_PARAMS
);
2635 if (demangled_name
== NULL
)
2636 fprintf_filtered (stream
, "<badly mangled name %s>",
2637 TYPE_FN_FIELD_PHYSNAME (t
, block
));
2640 fputs_filtered (demangled_name
, stream
);
2641 free (demangled_name
);
2647 /* This help function for symtab_symbol_info() prints information
2648 for non-debugging symbols to gdb_stdout.
2651 print_msymbol_info (struct minimal_symbol
*msymbol
)
2653 printf_filtered (" %08lx %s\n",
2654 (unsigned long) SYMBOL_VALUE_ADDRESS (msymbol
),
2655 SYMBOL_SOURCE_NAME (msymbol
));
2658 /* This is the guts of the commands "info functions", "info types", and
2659 "info variables". It calls search_symbols to find all matches and then
2660 print_[m]symbol_info to print out some useful information about the
2664 symtab_symbol_info (char *regexp
, namespace_enum kind
, int from_tty
)
2666 static char *classnames
[]
2668 {"variable", "function", "type", "method"};
2669 struct symbol_search
*symbols
;
2670 struct symbol_search
*p
;
2671 struct cleanup
*old_chain
;
2672 char *last_filename
= NULL
;
2675 /* must make sure that if we're interrupted, symbols gets freed */
2676 search_symbols (regexp
, kind
, 0, (char **) NULL
, &symbols
);
2677 old_chain
= make_cleanup_free_search_symbols (symbols
);
2679 printf_filtered (regexp
2680 ? "All %ss matching regular expression \"%s\":\n"
2681 : "All defined %ss:\n",
2682 classnames
[(int) (kind
- VARIABLES_NAMESPACE
)], regexp
);
2684 for (p
= symbols
; p
!= NULL
; p
= p
->next
)
2688 if (p
->msymbol
!= NULL
)
2692 printf_filtered ("\nNon-debugging symbols:\n");
2695 print_msymbol_info (p
->msymbol
);
2699 print_symbol_info (kind
,
2704 last_filename
= p
->symtab
->filename
;
2708 do_cleanups (old_chain
);
2712 variables_info (char *regexp
, int from_tty
)
2714 symtab_symbol_info (regexp
, VARIABLES_NAMESPACE
, from_tty
);
2718 functions_info (char *regexp
, int from_tty
)
2720 symtab_symbol_info (regexp
, FUNCTIONS_NAMESPACE
, from_tty
);
2725 types_info (char *regexp
, int from_tty
)
2727 symtab_symbol_info (regexp
, TYPES_NAMESPACE
, from_tty
);
2731 /* Tiemann says: "info methods was never implemented." */
2733 methods_info (char *regexp
)
2735 symtab_symbol_info (regexp
, METHODS_NAMESPACE
, 0, from_tty
);
2739 /* Breakpoint all functions matching regular expression. */
2742 rbreak_command_wrapper (char *regexp
, int from_tty
)
2744 rbreak_command (regexp
, from_tty
);
2748 rbreak_command (char *regexp
, int from_tty
)
2750 struct symbol_search
*ss
;
2751 struct symbol_search
*p
;
2752 struct cleanup
*old_chain
;
2754 search_symbols (regexp
, FUNCTIONS_NAMESPACE
, 0, (char **) NULL
, &ss
);
2755 old_chain
= make_cleanup_free_search_symbols (ss
);
2757 for (p
= ss
; p
!= NULL
; p
= p
->next
)
2759 if (p
->msymbol
== NULL
)
2761 char *string
= (char *) alloca (strlen (p
->symtab
->filename
)
2762 + strlen (SYMBOL_NAME (p
->symbol
))
2764 strcpy (string
, p
->symtab
->filename
);
2765 strcat (string
, ":'");
2766 strcat (string
, SYMBOL_NAME (p
->symbol
));
2767 strcat (string
, "'");
2768 break_command (string
, from_tty
);
2769 print_symbol_info (FUNCTIONS_NAMESPACE
,
2773 p
->symtab
->filename
);
2777 break_command (SYMBOL_NAME (p
->msymbol
), from_tty
);
2778 printf_filtered ("<function, no debug info> %s;\n",
2779 SYMBOL_SOURCE_NAME (p
->msymbol
));
2783 do_cleanups (old_chain
);
2787 /* Return Nonzero if block a is lexically nested within block b,
2788 or if a and b have the same pc range.
2789 Return zero otherwise. */
2791 contained_in (struct block
*a
, struct block
*b
)
2795 return BLOCK_START (a
) >= BLOCK_START (b
)
2796 && BLOCK_END (a
) <= BLOCK_END (b
);
2800 /* Helper routine for make_symbol_completion_list. */
2802 static int return_val_size
;
2803 static int return_val_index
;
2804 static char **return_val
;
2806 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
2808 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
2809 /* Put only the mangled name on the list. */ \
2810 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
2811 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
2812 completion_list_add_name \
2813 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
2815 completion_list_add_name \
2816 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
2819 /* Test to see if the symbol specified by SYMNAME (which is already
2820 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
2821 characters. If so, add it to the current completion list. */
2824 completion_list_add_name (char *symname
, char *sym_text
, int sym_text_len
,
2825 char *text
, char *word
)
2830 /* clip symbols that cannot match */
2832 if (strncmp (symname
, sym_text
, sym_text_len
) != 0)
2837 /* Clip any symbol names that we've already considered. (This is a
2838 time optimization) */
2840 for (i
= 0; i
< return_val_index
; ++i
)
2842 if (STREQ (symname
, return_val
[i
]))
2848 /* We have a match for a completion, so add SYMNAME to the current list
2849 of matches. Note that the name is moved to freshly malloc'd space. */
2853 if (word
== sym_text
)
2855 new = xmalloc (strlen (symname
) + 5);
2856 strcpy (new, symname
);
2858 else if (word
> sym_text
)
2860 /* Return some portion of symname. */
2861 new = xmalloc (strlen (symname
) + 5);
2862 strcpy (new, symname
+ (word
- sym_text
));
2866 /* Return some of SYM_TEXT plus symname. */
2867 new = xmalloc (strlen (symname
) + (sym_text
- word
) + 5);
2868 strncpy (new, word
, sym_text
- word
);
2869 new[sym_text
- word
] = '\0';
2870 strcat (new, symname
);
2873 /* Recheck for duplicates if we intend to add a modified symbol. */
2874 if (word
!= sym_text
)
2876 for (i
= 0; i
< return_val_index
; ++i
)
2878 if (STREQ (new, return_val
[i
]))
2886 if (return_val_index
+ 3 > return_val_size
)
2888 newsize
= (return_val_size
*= 2) * sizeof (char *);
2889 return_val
= (char **) xrealloc ((char *) return_val
, newsize
);
2891 return_val
[return_val_index
++] = new;
2892 return_val
[return_val_index
] = NULL
;
2896 /* Return a NULL terminated array of all symbols (regardless of class) which
2897 begin by matching TEXT. If the answer is no symbols, then the return value
2898 is an array which contains only a NULL pointer.
2900 Problem: All of the symbols have to be copied because readline frees them.
2901 I'm not going to worry about this; hopefully there won't be that many. */
2904 make_symbol_completion_list (char *text
, char *word
)
2906 register struct symbol
*sym
;
2907 register struct symtab
*s
;
2908 register struct partial_symtab
*ps
;
2909 register struct minimal_symbol
*msymbol
;
2910 register struct objfile
*objfile
;
2911 register struct block
*b
, *surrounding_static_block
= 0;
2913 struct partial_symbol
**psym
;
2914 /* The symbol we are completing on. Points in same buffer as text. */
2916 /* Length of sym_text. */
2919 /* Now look for the symbol we are supposed to complete on.
2920 FIXME: This should be language-specific. */
2924 char *quote_pos
= NULL
;
2926 /* First see if this is a quoted string. */
2928 for (p
= text
; *p
!= '\0'; ++p
)
2930 if (quote_found
!= '\0')
2932 if (*p
== quote_found
)
2933 /* Found close quote. */
2935 else if (*p
== '\\' && p
[1] == quote_found
)
2936 /* A backslash followed by the quote character
2937 doesn't end the string. */
2940 else if (*p
== '\'' || *p
== '"')
2946 if (quote_found
== '\'')
2947 /* A string within single quotes can be a symbol, so complete on it. */
2948 sym_text
= quote_pos
+ 1;
2949 else if (quote_found
== '"')
2950 /* A double-quoted string is never a symbol, nor does it make sense
2951 to complete it any other way. */
2955 /* It is not a quoted string. Break it based on the characters
2956 which are in symbols. */
2959 if (isalnum (p
[-1]) || p
[-1] == '_' || p
[-1] == '\0')
2968 sym_text_len
= strlen (sym_text
);
2970 return_val_size
= 100;
2971 return_val_index
= 0;
2972 return_val
= (char **) xmalloc ((return_val_size
+ 1) * sizeof (char *));
2973 return_val
[0] = NULL
;
2975 /* Look through the partial symtabs for all symbols which begin
2976 by matching SYM_TEXT. Add each one that you find to the list. */
2978 ALL_PSYMTABS (objfile
, ps
)
2980 /* If the psymtab's been read in we'll get it when we search
2981 through the blockvector. */
2985 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
2986 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
2987 + ps
->n_global_syms
);
2990 /* If interrupted, then quit. */
2992 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
2995 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
2996 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
2997 + ps
->n_static_syms
);
3001 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
3005 /* At this point scan through the misc symbol vectors and add each
3006 symbol you find to the list. Eventually we want to ignore
3007 anything that isn't a text symbol (everything else will be
3008 handled by the psymtab code above). */
3010 ALL_MSYMBOLS (objfile
, msymbol
)
3013 COMPLETION_LIST_ADD_SYMBOL (msymbol
, sym_text
, sym_text_len
, text
, word
);
3016 /* Search upwards from currently selected frame (so that we can
3017 complete on local vars. */
3019 for (b
= get_selected_block (); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
3021 if (!BLOCK_SUPERBLOCK (b
))
3023 surrounding_static_block
= b
; /* For elmin of dups */
3026 /* Also catch fields of types defined in this places which match our
3027 text string. Only complete on types visible from current context. */
3029 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3031 sym
= BLOCK_SYM (b
, i
);
3032 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3033 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
3035 struct type
*t
= SYMBOL_TYPE (sym
);
3036 enum type_code c
= TYPE_CODE (t
);
3038 if (c
== TYPE_CODE_UNION
|| c
== TYPE_CODE_STRUCT
)
3040 for (j
= TYPE_N_BASECLASSES (t
); j
< TYPE_NFIELDS (t
); j
++)
3042 if (TYPE_FIELD_NAME (t
, j
))
3044 completion_list_add_name (TYPE_FIELD_NAME (t
, j
),
3045 sym_text
, sym_text_len
, text
, word
);
3053 /* Go through the symtabs and check the externs and statics for
3054 symbols which match. */
3056 ALL_SYMTABS (objfile
, s
)
3059 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3060 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3062 sym
= BLOCK_SYM (b
, i
);
3063 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3067 ALL_SYMTABS (objfile
, s
)
3070 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3071 /* Don't do this block twice. */
3072 if (b
== surrounding_static_block
)
3074 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3076 sym
= BLOCK_SYM (b
, i
);
3077 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3081 return (return_val
);
3084 /* Determine if PC is in the prologue of a function. The prologue is the area
3085 between the first instruction of a function, and the first executable line.
3086 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
3088 If non-zero, func_start is where we think the prologue starts, possibly
3089 by previous examination of symbol table information.
3093 in_prologue (CORE_ADDR pc
, CORE_ADDR func_start
)
3095 struct symtab_and_line sal
;
3096 CORE_ADDR func_addr
, func_end
;
3098 /* We have several sources of information we can consult to figure
3100 - Compilers usually emit line number info that marks the prologue
3101 as its own "source line". So the ending address of that "line"
3102 is the end of the prologue. If available, this is the most
3104 - The minimal symbols and partial symbols, which can usually tell
3105 us the starting and ending addresses of a function.
3106 - If we know the function's start address, we can call the
3107 architecture-defined SKIP_PROLOGUE function to analyze the
3108 instruction stream and guess where the prologue ends.
3109 - Our `func_start' argument; if non-zero, this is the caller's
3110 best guess as to the function's entry point. At the time of
3111 this writing, handle_inferior_event doesn't get this right, so
3112 it should be our last resort. */
3114 /* Consult the partial symbol table, to find which function
3116 if (! find_pc_partial_function (pc
, NULL
, &func_addr
, &func_end
))
3118 CORE_ADDR prologue_end
;
3120 /* We don't even have minsym information, so fall back to using
3121 func_start, if given. */
3123 return 1; /* We *might* be in a prologue. */
3125 prologue_end
= SKIP_PROLOGUE (func_start
);
3127 return func_start
<= pc
&& pc
< prologue_end
;
3130 /* If we have line number information for the function, that's
3131 usually pretty reliable. */
3132 sal
= find_pc_line (func_addr
, 0);
3134 /* Now sal describes the source line at the function's entry point,
3135 which (by convention) is the prologue. The end of that "line",
3136 sal.end, is the end of the prologue.
3138 Note that, for functions whose source code is all on a single
3139 line, the line number information doesn't always end up this way.
3140 So we must verify that our purported end-of-prologue address is
3141 *within* the function, not at its start or end. */
3143 || sal
.end
<= func_addr
3144 || func_end
<= sal
.end
)
3146 /* We don't have any good line number info, so use the minsym
3147 information, together with the architecture-specific prologue
3149 CORE_ADDR prologue_end
= SKIP_PROLOGUE (func_addr
);
3151 return func_addr
<= pc
&& pc
< prologue_end
;
3154 /* We have line number info, and it looks good. */
3155 return func_addr
<= pc
&& pc
< sal
.end
;
3159 /* Begin overload resolution functions */
3160 /* Helper routine for make_symbol_completion_list. */
3162 static int sym_return_val_size
;
3163 static int sym_return_val_index
;
3164 static struct symbol
**sym_return_val
;
3166 /* Test to see if the symbol specified by SYMNAME (which is already
3167 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3168 characters. If so, add it to the current completion list. */
3171 overload_list_add_symbol (struct symbol
*sym
, char *oload_name
)
3176 /* Get the demangled name without parameters */
3177 char *sym_name
= cplus_demangle (SYMBOL_NAME (sym
), DMGL_ARM
| DMGL_ANSI
);
3180 sym_name
= (char *) xmalloc (strlen (SYMBOL_NAME (sym
)) + 1);
3181 strcpy (sym_name
, SYMBOL_NAME (sym
));
3184 /* skip symbols that cannot match */
3185 if (strcmp (sym_name
, oload_name
) != 0)
3191 /* If there is no type information, we can't do anything, so skip */
3192 if (SYMBOL_TYPE (sym
) == NULL
)
3195 /* skip any symbols that we've already considered. */
3196 for (i
= 0; i
< sym_return_val_index
; ++i
)
3197 if (!strcmp (SYMBOL_NAME (sym
), SYMBOL_NAME (sym_return_val
[i
])))
3200 /* We have a match for an overload instance, so add SYM to the current list
3201 * of overload instances */
3202 if (sym_return_val_index
+ 3 > sym_return_val_size
)
3204 newsize
= (sym_return_val_size
*= 2) * sizeof (struct symbol
*);
3205 sym_return_val
= (struct symbol
**) xrealloc ((char *) sym_return_val
, newsize
);
3207 sym_return_val
[sym_return_val_index
++] = sym
;
3208 sym_return_val
[sym_return_val_index
] = NULL
;
3213 /* Return a null-terminated list of pointers to function symbols that
3214 * match name of the supplied symbol FSYM.
3215 * This is used in finding all overloaded instances of a function name.
3216 * This has been modified from make_symbol_completion_list. */
3220 make_symbol_overload_list (struct symbol
*fsym
)
3222 register struct symbol
*sym
;
3223 register struct symtab
*s
;
3224 register struct partial_symtab
*ps
;
3225 register struct objfile
*objfile
;
3226 register struct block
*b
, *surrounding_static_block
= 0;
3228 /* The name we are completing on. */
3229 char *oload_name
= NULL
;
3230 /* Length of name. */
3231 int oload_name_len
= 0;
3233 /* Look for the symbol we are supposed to complete on.
3234 * FIXME: This should be language-specific. */
3236 oload_name
= cplus_demangle (SYMBOL_NAME (fsym
), DMGL_ARM
| DMGL_ANSI
);
3239 oload_name
= (char *) xmalloc (strlen (SYMBOL_NAME (fsym
)) + 1);
3240 strcpy (oload_name
, SYMBOL_NAME (fsym
));
3242 oload_name_len
= strlen (oload_name
);
3244 sym_return_val_size
= 100;
3245 sym_return_val_index
= 0;
3246 sym_return_val
= (struct symbol
**) xmalloc ((sym_return_val_size
+ 1) * sizeof (struct symbol
*));
3247 sym_return_val
[0] = NULL
;
3249 /* Look through the partial symtabs for all symbols which begin
3250 by matching OLOAD_NAME. Make sure we read that symbol table in. */
3252 ALL_PSYMTABS (objfile
, ps
)
3254 struct partial_symbol
**psym
;
3256 /* If the psymtab's been read in we'll get it when we search
3257 through the blockvector. */
3261 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
3262 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
3263 + ps
->n_global_syms
);
3266 /* If interrupted, then quit. */
3268 /* This will cause the symbol table to be read if it has not yet been */
3269 s
= PSYMTAB_TO_SYMTAB (ps
);
3272 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
3273 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
3274 + ps
->n_static_syms
);
3278 /* This will cause the symbol table to be read if it has not yet been */
3279 s
= PSYMTAB_TO_SYMTAB (ps
);
3283 /* Search upwards from currently selected frame (so that we can
3284 complete on local vars. */
3286 for (b
= get_selected_block (); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
3288 if (!BLOCK_SUPERBLOCK (b
))
3290 surrounding_static_block
= b
; /* For elimination of dups */
3293 /* Also catch fields of types defined in this places which match our
3294 text string. Only complete on types visible from current context. */
3296 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3298 sym
= BLOCK_SYM (b
, i
);
3299 overload_list_add_symbol (sym
, oload_name
);
3303 /* Go through the symtabs and check the externs and statics for
3304 symbols which match. */
3306 ALL_SYMTABS (objfile
, s
)
3309 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3310 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3312 sym
= BLOCK_SYM (b
, i
);
3313 overload_list_add_symbol (sym
, oload_name
);
3317 ALL_SYMTABS (objfile
, s
)
3320 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3321 /* Don't do this block twice. */
3322 if (b
== surrounding_static_block
)
3324 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3326 sym
= BLOCK_SYM (b
, i
);
3327 overload_list_add_symbol (sym
, oload_name
);
3333 return (sym_return_val
);
3336 /* End of overload resolution functions */
3338 struct symtabs_and_lines
3339 decode_line_spec (char *string
, int funfirstline
)
3341 struct symtabs_and_lines sals
;
3343 error ("Empty line specification.");
3344 sals
= decode_line_1 (&string
, funfirstline
,
3345 current_source_symtab
, current_source_line
,
3348 error ("Junk at end of line specification: %s", string
);
3353 _initialize_symtab (void)
3355 add_info ("variables", variables_info
,
3356 "All global and static variable names, or those matching REGEXP.");
3358 add_com ("whereis", class_info
, variables_info
,
3359 "All global and static variable names, or those matching REGEXP.");
3361 add_info ("functions", functions_info
,
3362 "All function names, or those matching REGEXP.");
3365 /* FIXME: This command has at least the following problems:
3366 1. It prints builtin types (in a very strange and confusing fashion).
3367 2. It doesn't print right, e.g. with
3368 typedef struct foo *FOO
3369 type_print prints "FOO" when we want to make it (in this situation)
3370 print "struct foo *".
3371 I also think "ptype" or "whatis" is more likely to be useful (but if
3372 there is much disagreement "info types" can be fixed). */
3373 add_info ("types", types_info
,
3374 "All type names, or those matching REGEXP.");
3377 add_info ("methods", methods_info
,
3378 "All method names, or those matching REGEXP::REGEXP.\n\
3379 If the class qualifier is omitted, it is assumed to be the current scope.\n\
3380 If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
3383 add_info ("sources", sources_info
,
3384 "Source files in the program.");
3386 add_com ("rbreak", class_breakpoint
, rbreak_command
,
3387 "Set a breakpoint for all functions matching REGEXP.");
3391 add_com ("lf", class_info
, sources_info
, "Source files in the program");
3392 add_com ("lg", class_info
, variables_info
,
3393 "All global and static variable names, or those matching REGEXP.");
3396 /* Initialize the one built-in type that isn't language dependent... */
3397 builtin_type_error
= init_type (TYPE_CODE_ERROR
, 0, 0,
3398 "<unknown type>", (struct objfile
*) NULL
);