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"
42 #include <sys/types.h>
44 #include "gdb_string.h"
48 /* Prototype for one function in parser-defs.h,
49 instead of including that entire file. */
51 extern char *find_template_name_end (char *);
53 /* Prototypes for local functions */
55 static void completion_list_add_name (char *, char *, int, char *, char *);
57 static void rbreak_command (char *, int);
59 static void types_info (char *, int);
61 static void functions_info (char *, int);
63 static void variables_info (char *, int);
65 static void sources_info (char *, int);
67 static void output_source_filename (char *, int *);
69 static int find_line_common (struct linetable
*, int, int *);
71 /* This one is used by linespec.c */
73 char *operator_chars (char *p
, char **end
);
75 static struct partial_symbol
*lookup_partial_symbol (struct partial_symtab
*,
79 static struct symtab
*lookup_symtab_1 (char *);
81 static struct symbol
*lookup_symbol_aux (const char *name
, const
82 struct block
*block
, const
83 namespace_enum
namespace, int
84 *is_a_field_of_this
, struct
88 static struct symbol
*find_active_alias (struct symbol
*sym
, CORE_ADDR addr
);
90 /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
91 /* Signals the presence of objects compiled by HP compilers */
92 int hp_som_som_object_present
= 0;
94 static void fixup_section (struct general_symbol_info
*, struct objfile
*);
96 static int file_matches (char *, char **, int);
98 static void print_symbol_info (namespace_enum
,
99 struct symtab
*, struct symbol
*, int, char *);
101 static void print_msymbol_info (struct minimal_symbol
*);
103 static void symtab_symbol_info (char *, namespace_enum
, int);
105 static void overload_list_add_symbol (struct symbol
*sym
, char *oload_name
);
107 void _initialize_symtab (void);
111 /* The single non-language-specific builtin type */
112 struct type
*builtin_type_error
;
114 /* Block in which the most recently searched-for symbol was found.
115 Might be better to make this a parameter to lookup_symbol and
118 const struct block
*block_found
;
120 /* While the C++ support is still in flux, issue a possibly helpful hint on
121 using the new command completion feature on single quoted demangled C++
122 symbols. Remove when loose ends are cleaned up. FIXME -fnf */
125 cplusplus_hint (char *name
)
127 while (*name
== '\'')
129 printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name
, name
);
130 printf_filtered ("(Note leading single quote.)\n");
133 /* Check for a symtab of a specific name; first in symtabs, then in
134 psymtabs. *If* there is no '/' in the name, a match after a '/'
135 in the symtab filename will also work. */
137 static struct symtab
*
138 lookup_symtab_1 (char *name
)
140 register struct symtab
*s
;
141 register struct partial_symtab
*ps
;
142 register char *slash
;
143 register struct objfile
*objfile
;
147 /* First, search for an exact match */
149 ALL_SYMTABS (objfile
, s
)
150 if (STREQ (name
, s
->filename
))
153 slash
= strchr (name
, '/');
155 /* Now, search for a matching tail (only if name doesn't have any dirs) */
158 ALL_SYMTABS (objfile
, s
)
160 char *p
= s
->filename
;
161 char *tail
= strrchr (p
, '/');
170 /* Same search rules as above apply here, but now we look thru the
173 ps
= lookup_partial_symtab (name
);
178 error ("Internal: readin %s pst for `%s' found when no symtab found.",
181 s
= PSYMTAB_TO_SYMTAB (ps
);
186 /* At this point, we have located the psymtab for this file, but
187 the conversion to a symtab has failed. This usually happens
188 when we are looking up an include file. In this case,
189 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
190 been created. So, we need to run through the symtabs again in
191 order to find the file.
192 XXX - This is a crock, and should be fixed inside of the the
193 symbol parsing routines. */
197 /* Lookup the symbol table of a source file named NAME. Try a couple
198 of variations if the first lookup doesn't work. */
201 lookup_symtab (char *name
)
203 register struct symtab
*s
;
208 s
= lookup_symtab_1 (name
);
213 /* This screws c-exp.y:yylex if there is both a type "tree" and a symtab
216 /* If name not found as specified, see if adding ".c" helps. */
217 /* Why is this? Is it just a user convenience? (If so, it's pretty
218 questionable in the presence of C++, FORTRAN, etc.). It's not in
221 copy
= (char *) alloca (strlen (name
) + 3);
224 s
= lookup_symtab_1 (copy
);
229 /* We didn't find anything; die. */
233 /* Lookup the partial symbol table of a source file named NAME.
234 *If* there is no '/' in the name, a match after a '/'
235 in the psymtab filename will also work. */
237 struct partial_symtab
*
238 lookup_partial_symtab (char *name
)
240 register struct partial_symtab
*pst
;
241 register struct objfile
*objfile
;
243 ALL_PSYMTABS (objfile
, pst
)
245 if (STREQ (name
, pst
->filename
))
251 /* Now, search for a matching tail (only if name doesn't have any dirs) */
253 if (!strchr (name
, '/'))
254 ALL_PSYMTABS (objfile
, pst
)
256 char *p
= pst
->filename
;
257 char *tail
= strrchr (p
, '/');
269 /* Mangle a GDB method stub type. This actually reassembles the pieces of the
270 full method name, which consist of the class name (from T), the unadorned
271 method name from METHOD_ID, and the signature for the specific overload,
272 specified by SIGNATURE_ID. Note that this function is g++ specific. */
275 gdb_mangle_name (struct type
*type
, int method_id
, int signature_id
)
277 int mangled_name_len
;
279 struct fn_field
*f
= TYPE_FN_FIELDLIST1 (type
, method_id
);
280 struct fn_field
*method
= &f
[signature_id
];
281 char *field_name
= TYPE_FN_FIELDLIST_NAME (type
, method_id
);
282 char *physname
= TYPE_FN_FIELD_PHYSNAME (f
, signature_id
);
283 char *newname
= type_name_no_tag (type
);
285 /* Does the form of physname indicate that it is the full mangled name
286 of a constructor (not just the args)? */
287 int is_full_physname_constructor
;
290 int is_destructor
= DESTRUCTOR_PREFIX_P (physname
);
291 /* Need a new type prefix. */
292 char *const_prefix
= method
->is_const
? "C" : "";
293 char *volatile_prefix
= method
->is_volatile
? "V" : "";
295 int len
= (newname
== NULL
? 0 : strlen (newname
));
297 if (OPNAME_PREFIX_P (field_name
))
298 return xstrdup (physname
);
300 is_full_physname_constructor
=
301 ((physname
[0] == '_' && physname
[1] == '_' &&
302 (isdigit (physname
[2]) || physname
[2] == 'Q' || physname
[2] == 't'))
303 || (strncmp (physname
, "__ct", 4) == 0));
306 is_full_physname_constructor
|| (newname
&& STREQ (field_name
, newname
));
309 is_destructor
= (strncmp (physname
, "__dt", 4) == 0);
311 if (is_destructor
|| is_full_physname_constructor
)
313 mangled_name
= (char *) xmalloc (strlen (physname
) + 1);
314 strcpy (mangled_name
, physname
);
320 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
322 else if (physname
[0] == 't' || physname
[0] == 'Q')
324 /* The physname for template and qualified methods already includes
326 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
332 sprintf (buf
, "__%s%s%d", const_prefix
, volatile_prefix
, len
);
334 mangled_name_len
= ((is_constructor
? 0 : strlen (field_name
))
335 + strlen (buf
) + len
+ strlen (physname
) + 1);
338 mangled_name
= (char *) xmalloc (mangled_name_len
);
340 mangled_name
[0] = '\0';
342 strcpy (mangled_name
, field_name
);
344 strcat (mangled_name
, buf
);
345 /* If the class doesn't have a name, i.e. newname NULL, then we just
346 mangle it using 0 for the length of the class. Thus it gets mangled
347 as something starting with `::' rather than `classname::'. */
349 strcat (mangled_name
, newname
);
351 strcat (mangled_name
, physname
);
352 return (mangled_name
);
357 /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
359 struct partial_symtab
*
360 find_pc_sect_psymtab (CORE_ADDR pc
, asection
*section
)
362 register struct partial_symtab
*pst
;
363 register struct objfile
*objfile
;
365 ALL_PSYMTABS (objfile
, pst
)
367 if (pc
>= pst
->textlow
&& pc
< pst
->texthigh
)
369 struct minimal_symbol
*msymbol
;
370 struct partial_symtab
*tpst
;
372 /* An objfile that has its functions reordered might have
373 many partial symbol tables containing the PC, but
374 we want the partial symbol table that contains the
375 function containing the PC. */
376 if (!(objfile
->flags
& OBJF_REORDERED
) &&
377 section
== 0) /* can't validate section this way */
380 msymbol
= lookup_minimal_symbol_by_pc_section (pc
, section
);
384 for (tpst
= pst
; tpst
!= NULL
; tpst
= tpst
->next
)
386 if (pc
>= tpst
->textlow
&& pc
< tpst
->texthigh
)
388 struct partial_symbol
*p
;
390 p
= find_pc_sect_psymbol (tpst
, pc
, section
);
392 && SYMBOL_VALUE_ADDRESS (p
)
393 == SYMBOL_VALUE_ADDRESS (msymbol
))
403 /* Find which partial symtab contains PC. Return 0 if none.
404 Backward compatibility, no section */
406 struct partial_symtab
*
407 find_pc_psymtab (CORE_ADDR pc
)
409 return find_pc_sect_psymtab (pc
, find_pc_mapped_section (pc
));
412 /* Find which partial symbol within a psymtab matches PC and SECTION.
413 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
415 struct partial_symbol
*
416 find_pc_sect_psymbol (struct partial_symtab
*psymtab
, CORE_ADDR pc
,
419 struct partial_symbol
*best
= NULL
, *p
, **pp
;
423 psymtab
= find_pc_sect_psymtab (pc
, section
);
427 /* Cope with programs that start at address 0 */
428 best_pc
= (psymtab
->textlow
!= 0) ? psymtab
->textlow
- 1 : 0;
430 /* Search the global symbols as well as the static symbols, so that
431 find_pc_partial_function doesn't use a minimal symbol and thus
432 cache a bad endaddr. */
433 for (pp
= psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
;
434 (pp
- (psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
)
435 < psymtab
->n_global_syms
);
439 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
440 && SYMBOL_CLASS (p
) == LOC_BLOCK
441 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
442 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
443 || (psymtab
->textlow
== 0
444 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
446 if (section
) /* match on a specific section */
448 fixup_psymbol_section (p
, psymtab
->objfile
);
449 if (SYMBOL_BFD_SECTION (p
) != section
)
452 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
457 for (pp
= psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
;
458 (pp
- (psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
)
459 < psymtab
->n_static_syms
);
463 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
464 && SYMBOL_CLASS (p
) == LOC_BLOCK
465 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
466 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
467 || (psymtab
->textlow
== 0
468 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
470 if (section
) /* match on a specific section */
472 fixup_psymbol_section (p
, psymtab
->objfile
);
473 if (SYMBOL_BFD_SECTION (p
) != section
)
476 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
484 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
485 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
487 struct partial_symbol
*
488 find_pc_psymbol (struct partial_symtab
*psymtab
, CORE_ADDR pc
)
490 return find_pc_sect_psymbol (psymtab
, pc
, find_pc_mapped_section (pc
));
493 /* Debug symbols usually don't have section information. We need to dig that
494 out of the minimal symbols and stash that in the debug symbol. */
497 fixup_section (struct general_symbol_info
*ginfo
, struct objfile
*objfile
)
499 struct minimal_symbol
*msym
;
500 msym
= lookup_minimal_symbol (ginfo
->name
, NULL
, objfile
);
504 ginfo
->bfd_section
= SYMBOL_BFD_SECTION (msym
);
505 ginfo
->section
= SYMBOL_SECTION (msym
);
510 fixup_symbol_section (struct symbol
*sym
, struct objfile
*objfile
)
515 if (SYMBOL_BFD_SECTION (sym
))
518 fixup_section (&sym
->ginfo
, objfile
);
523 struct partial_symbol
*
524 fixup_psymbol_section (struct partial_symbol
*psym
, struct objfile
*objfile
)
529 if (SYMBOL_BFD_SECTION (psym
))
532 fixup_section (&psym
->ginfo
, objfile
);
537 /* Find the definition for a specified symbol name NAME
538 in namespace NAMESPACE, visible from lexical block BLOCK.
539 Returns the struct symbol pointer, or zero if no symbol is found.
540 If SYMTAB is non-NULL, store the symbol table in which the
541 symbol was found there, or NULL if not found.
542 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
543 NAME is a field of the current implied argument `this'. If so set
544 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
545 BLOCK_FOUND is set to the block in which NAME is found (in the case of
546 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
548 /* This function has a bunch of loops in it and it would seem to be
549 attractive to put in some QUIT's (though I'm not really sure
550 whether it can run long enough to be really important). But there
551 are a few calls for which it would appear to be bad news to quit
552 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
553 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
554 code below which can error(), but that probably doesn't affect
555 these calls since they are looking for a known variable and thus
556 can probably assume it will never hit the C++ code). */
559 lookup_symbol (const char *name
, const struct block
*block
,
560 const namespace_enum
namespace, int *is_a_field_of_this
,
561 struct symtab
**symtab
)
563 char *modified_name
= NULL
;
564 char *modified_name2
= NULL
;
565 int needtofreename
= 0;
566 struct symbol
*returnval
;
568 if (case_sensitivity
== case_sensitive_off
)
574 copy
= (char *) alloca (len
+ 1);
575 for (i
= 0; i
< len
; i
++)
576 copy
[i
] = tolower (name
[i
]);
578 modified_name
= copy
;
581 modified_name
= (char *) name
;
583 /* If we are using C++ language, demangle the name before doing a lookup, so
584 we can always binary search. */
585 if (current_language
->la_language
== language_cplus
)
587 modified_name2
= cplus_demangle (modified_name
, DMGL_ANSI
| DMGL_PARAMS
);
590 modified_name
= modified_name2
;
595 returnval
= lookup_symbol_aux (modified_name
, block
, namespace,
596 is_a_field_of_this
, symtab
);
598 xfree (modified_name2
);
603 static struct symbol
*
604 lookup_symbol_aux (const char *name
, const struct block
*block
,
605 const namespace_enum
namespace, int *is_a_field_of_this
,
606 struct symtab
**symtab
)
608 register struct symbol
*sym
;
609 register struct symtab
*s
= NULL
;
610 register struct partial_symtab
*ps
;
611 register struct blockvector
*bv
;
612 register struct objfile
*objfile
= NULL
;
613 register struct block
*b
;
614 register struct minimal_symbol
*msymbol
;
617 /* Search specified block and its superiors. */
621 sym
= lookup_block_symbol (block
, name
, namespace);
627 /* Search the list of symtabs for one which contains the
628 address of the start of this block. */
629 ALL_SYMTABS (objfile
, s
)
631 bv
= BLOCKVECTOR (s
);
632 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
633 if (BLOCK_START (b
) <= BLOCK_START (block
)
634 && BLOCK_END (b
) > BLOCK_START (block
))
641 return fixup_symbol_section (sym
, objfile
);
643 block
= BLOCK_SUPERBLOCK (block
);
646 /* FIXME: this code is never executed--block is always NULL at this
647 point. What is it trying to do, anyway? We already should have
648 checked the STATIC_BLOCK above (it is the superblock of top-level
649 blocks). Why is VAR_NAMESPACE special-cased? */
650 /* Don't need to mess with the psymtabs; if we have a block,
651 that file is read in. If we don't, then we deal later with
652 all the psymtab stuff that needs checking. */
653 /* Note (RT): The following never-executed code looks unnecessary to me also.
654 * If we change the code to use the original (passed-in)
655 * value of 'block', we could cause it to execute, but then what
656 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
657 * 'block' was already searched by the above code. And the STATIC_BLOCK's
658 * of *other* symtabs (those files not containing 'block' lexically)
659 * should not contain 'block' address-wise. So we wouldn't expect this
660 * code to find any 'sym''s that were not found above. I vote for
661 * deleting the following paragraph of code.
663 if (namespace == VAR_NAMESPACE
&& block
!= NULL
)
666 /* Find the right symtab. */
667 ALL_SYMTABS (objfile
, s
)
669 bv
= BLOCKVECTOR (s
);
670 b
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
671 if (BLOCK_START (b
) <= BLOCK_START (block
)
672 && BLOCK_END (b
) > BLOCK_START (block
))
674 sym
= lookup_block_symbol (b
, name
, VAR_NAMESPACE
);
680 return fixup_symbol_section (sym
, objfile
);
687 /* C++: If requested to do so by the caller,
688 check to see if NAME is a field of `this'. */
689 if (is_a_field_of_this
)
691 struct value
*v
= value_of_this (0);
693 *is_a_field_of_this
= 0;
694 if (v
&& check_field (v
, name
))
696 *is_a_field_of_this
= 1;
703 /* Now search all global blocks. Do the symtab's first, then
704 check the psymtab's. If a psymtab indicates the existence
705 of the desired name as a global, then do psymtab-to-symtab
706 conversion on the fly and return the found symbol. */
708 ALL_SYMTABS (objfile
, s
)
710 bv
= BLOCKVECTOR (s
);
711 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
712 sym
= lookup_block_symbol (block
, name
, namespace);
718 return fixup_symbol_section (sym
, objfile
);
724 /* Check for the possibility of the symbol being a function or
725 a mangled variable that is stored in one of the minimal symbol tables.
726 Eventually, all global symbols might be resolved in this way. */
728 if (namespace == VAR_NAMESPACE
)
730 msymbol
= lookup_minimal_symbol (name
, NULL
, NULL
);
733 s
= find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol
),
734 SYMBOL_BFD_SECTION (msymbol
));
737 /* This is a function which has a symtab for its address. */
738 bv
= BLOCKVECTOR (s
);
739 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
740 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
742 /* We kept static functions in minimal symbol table as well as
743 in static scope. We want to find them in the symbol table. */
746 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
747 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
751 /* sym == 0 if symbol was found in the minimal symbol table
752 but not in the symtab.
753 Return 0 to use the msymbol definition of "foo_".
755 This happens for Fortran "foo_" symbols,
756 which are "foo" in the symtab.
758 This can also happen if "asm" is used to make a
759 regular symbol but not a debugging symbol, e.g.
766 return fixup_symbol_section (sym
, objfile
);
768 else if (MSYMBOL_TYPE (msymbol
) != mst_text
769 && MSYMBOL_TYPE (msymbol
) != mst_file_text
770 && !STREQ (name
, SYMBOL_NAME (msymbol
)))
772 /* This is a mangled variable, look it up by its
774 return lookup_symbol_aux (SYMBOL_NAME (msymbol
), block
,
775 namespace, is_a_field_of_this
, symtab
);
777 /* There are no debug symbols for this file, or we are looking
778 for an unmangled variable.
779 Try to find a matching static symbol below. */
785 ALL_PSYMTABS (objfile
, ps
)
787 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 1, namespace))
789 s
= PSYMTAB_TO_SYMTAB (ps
);
790 bv
= BLOCKVECTOR (s
);
791 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
792 sym
= lookup_block_symbol (block
, name
, namespace);
795 /* This shouldn't be necessary, but as a last resort
796 * try looking in the statics even though the psymtab
797 * claimed the symbol was global. It's possible that
798 * the psymtab gets it wrong in some cases.
800 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
801 sym
= lookup_block_symbol (block
, name
, namespace);
803 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
804 %s may be an inlined function, or may be a template function\n\
805 (if a template, try specifying an instantiation: %s<type>).",
806 name
, ps
->filename
, name
, name
);
810 return fixup_symbol_section (sym
, objfile
);
814 /* Now search all static file-level symbols.
815 Not strictly correct, but more useful than an error.
816 Do the symtabs first, then check the psymtabs.
817 If a psymtab indicates the existence
818 of the desired name as a file-level static, then do psymtab-to-symtab
819 conversion on the fly and return the found symbol. */
821 ALL_SYMTABS (objfile
, s
)
823 bv
= BLOCKVECTOR (s
);
824 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
825 sym
= lookup_block_symbol (block
, name
, namespace);
831 return fixup_symbol_section (sym
, objfile
);
835 ALL_PSYMTABS (objfile
, ps
)
837 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 0, namespace))
839 s
= PSYMTAB_TO_SYMTAB (ps
);
840 bv
= BLOCKVECTOR (s
);
841 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
842 sym
= lookup_block_symbol (block
, name
, namespace);
845 /* This shouldn't be necessary, but as a last resort
846 * try looking in the globals even though the psymtab
847 * claimed the symbol was static. It's possible that
848 * the psymtab gets it wrong in some cases.
850 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
851 sym
= lookup_block_symbol (block
, name
, namespace);
853 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
854 %s may be an inlined function, or may be a template function\n\
855 (if a template, try specifying an instantiation: %s<type>).",
856 name
, ps
->filename
, name
, name
);
860 return fixup_symbol_section (sym
, objfile
);
866 /* Check for the possibility of the symbol being a function or
867 a global variable that is stored in one of the minimal symbol tables.
868 The "minimal symbol table" is built from linker-supplied info.
870 RT: I moved this check to last, after the complete search of
871 the global (p)symtab's and static (p)symtab's. For HP-generated
872 symbol tables, this check was causing a premature exit from
873 lookup_symbol with NULL return, and thus messing up symbol lookups
874 of things like "c::f". It seems to me a check of the minimal
875 symbol table ought to be a last resort in any case. I'm vaguely
876 worried about the comment below which talks about FORTRAN routines "foo_"
877 though... is it saying we need to do the "minsym" check before
878 the static check in this case?
881 if (namespace == VAR_NAMESPACE
)
883 msymbol
= lookup_minimal_symbol (name
, NULL
, NULL
);
886 /* OK, we found a minimal symbol in spite of not
887 * finding any symbol. There are various possible
888 * explanations for this. One possibility is the symbol
889 * exists in code not compiled -g. Another possibility
890 * is that the 'psymtab' isn't doing its job.
891 * A third possibility, related to #2, is that we were confused
892 * by name-mangling. For instance, maybe the psymtab isn't
893 * doing its job because it only know about demangled
894 * names, but we were given a mangled name...
897 /* We first use the address in the msymbol to try to
898 * locate the appropriate symtab. Note that find_pc_symtab()
899 * has a side-effect of doing psymtab-to-symtab expansion,
900 * for the found symtab.
902 s
= find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
));
905 bv
= BLOCKVECTOR (s
);
906 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
907 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
909 /* We kept static functions in minimal symbol table as well as
910 in static scope. We want to find them in the symbol table. */
913 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
914 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
917 /* If we found one, return it */
925 /* If we get here with sym == 0, the symbol was
926 found in the minimal symbol table
927 but not in the symtab.
928 Fall through and return 0 to use the msymbol
929 definition of "foo_".
930 (Note that outer code generally follows up a call
931 to this routine with a call to lookup_minimal_symbol(),
932 so a 0 return means we'll just flow into that other routine).
934 This happens for Fortran "foo_" symbols,
935 which are "foo" in the symtab.
937 This can also happen if "asm" is used to make a
938 regular symbol but not a debugging symbol, e.g.
944 /* If the lookup-by-address fails, try repeating the
945 * entire lookup process with the symbol name from
946 * the msymbol (if different from the original symbol name).
948 else if (MSYMBOL_TYPE (msymbol
) != mst_text
949 && MSYMBOL_TYPE (msymbol
) != mst_file_text
950 && !STREQ (name
, SYMBOL_NAME (msymbol
)))
952 return lookup_symbol_aux (SYMBOL_NAME (msymbol
), block
,
953 namespace, is_a_field_of_this
, symtab
);
965 /* Look, in partial_symtab PST, for symbol NAME. Check the global
966 symbols if GLOBAL, the static symbols if not */
968 static struct partial_symbol
*
969 lookup_partial_symbol (struct partial_symtab
*pst
, const char *name
, int global
,
970 namespace_enum
namespace)
972 struct partial_symbol
*temp
;
973 struct partial_symbol
**start
, **psym
;
974 struct partial_symbol
**top
, **bottom
, **center
;
975 int length
= (global
? pst
->n_global_syms
: pst
->n_static_syms
);
976 int do_linear_search
= 1;
983 pst
->objfile
->global_psymbols
.list
+ pst
->globals_offset
:
984 pst
->objfile
->static_psymbols
.list
+ pst
->statics_offset
);
986 if (global
) /* This means we can use a binary search. */
988 do_linear_search
= 0;
990 /* Binary search. This search is guaranteed to end with center
991 pointing at the earliest partial symbol with the correct
992 name. At that point *all* partial symbols with that name
993 will be checked against the correct namespace. */
996 top
= start
+ length
- 1;
999 center
= bottom
+ (top
- bottom
) / 2;
1000 if (!(center
< top
))
1001 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1002 if (!do_linear_search
1003 && (SYMBOL_LANGUAGE (*center
) == language_java
))
1005 do_linear_search
= 1;
1007 if (strcmp (SYMBOL_SOURCE_NAME (*center
), name
) >= 0)
1013 bottom
= center
+ 1;
1016 if (!(top
== bottom
))
1017 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1019 /* djb - 2000-06-03 - Use SYMBOL_MATCHES_NAME, not a strcmp, so
1020 we don't have to force a linear search on C++. Probably holds true
1021 for JAVA as well, no way to check.*/
1022 while (SYMBOL_MATCHES_NAME (*top
,name
))
1024 if (SYMBOL_NAMESPACE (*top
) == namespace)
1032 /* Can't use a binary search or else we found during the binary search that
1033 we should also do a linear search. */
1035 if (do_linear_search
)
1037 for (psym
= start
; psym
< start
+ length
; psym
++)
1039 if (namespace == SYMBOL_NAMESPACE (*psym
))
1041 if (SYMBOL_MATCHES_NAME (*psym
, name
))
1052 /* Look up a type named NAME in the struct_namespace. The type returned
1053 must not be opaque -- i.e., must have at least one field defined
1055 This code was modelled on lookup_symbol -- the parts not relevant to looking
1056 up types were just left out. In particular it's assumed here that types
1057 are available in struct_namespace and only at file-static or global blocks. */
1061 lookup_transparent_type (const char *name
)
1063 register struct symbol
*sym
;
1064 register struct symtab
*s
= NULL
;
1065 register struct partial_symtab
*ps
;
1066 struct blockvector
*bv
;
1067 register struct objfile
*objfile
;
1068 register struct block
*block
;
1070 /* Now search all the global symbols. Do the symtab's first, then
1071 check the psymtab's. If a psymtab indicates the existence
1072 of the desired name as a global, then do psymtab-to-symtab
1073 conversion on the fly and return the found symbol. */
1075 ALL_SYMTABS (objfile
, s
)
1077 bv
= BLOCKVECTOR (s
);
1078 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1079 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1080 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1082 return SYMBOL_TYPE (sym
);
1086 ALL_PSYMTABS (objfile
, ps
)
1088 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 1, STRUCT_NAMESPACE
))
1090 s
= PSYMTAB_TO_SYMTAB (ps
);
1091 bv
= BLOCKVECTOR (s
);
1092 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1093 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1096 /* This shouldn't be necessary, but as a last resort
1097 * try looking in the statics even though the psymtab
1098 * claimed the symbol was global. It's possible that
1099 * the psymtab gets it wrong in some cases.
1101 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1102 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1104 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
1105 %s may be an inlined function, or may be a template function\n\
1106 (if a template, try specifying an instantiation: %s<type>).",
1107 name
, ps
->filename
, name
, name
);
1109 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1110 return SYMBOL_TYPE (sym
);
1114 /* Now search the static file-level symbols.
1115 Not strictly correct, but more useful than an error.
1116 Do the symtab's first, then
1117 check the psymtab's. If a psymtab indicates the existence
1118 of the desired name as a file-level static, then do psymtab-to-symtab
1119 conversion on the fly and return the found symbol.
1122 ALL_SYMTABS (objfile
, s
)
1124 bv
= BLOCKVECTOR (s
);
1125 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1126 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1127 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1129 return SYMBOL_TYPE (sym
);
1133 ALL_PSYMTABS (objfile
, ps
)
1135 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 0, STRUCT_NAMESPACE
))
1137 s
= PSYMTAB_TO_SYMTAB (ps
);
1138 bv
= BLOCKVECTOR (s
);
1139 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1140 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1143 /* This shouldn't be necessary, but as a last resort
1144 * try looking in the globals even though the psymtab
1145 * claimed the symbol was static. It's possible that
1146 * the psymtab gets it wrong in some cases.
1148 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1149 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1151 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
1152 %s may be an inlined function, or may be a template function\n\
1153 (if a template, try specifying an instantiation: %s<type>).",
1154 name
, ps
->filename
, name
, name
);
1156 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1157 return SYMBOL_TYPE (sym
);
1160 return (struct type
*) 0;
1164 /* Find the psymtab containing main(). */
1165 /* FIXME: What about languages without main() or specially linked
1166 executables that have no main() ? */
1168 struct partial_symtab
*
1169 find_main_psymtab (void)
1171 register struct partial_symtab
*pst
;
1172 register struct objfile
*objfile
;
1174 ALL_PSYMTABS (objfile
, pst
)
1176 if (lookup_partial_symbol (pst
, "main", 1, VAR_NAMESPACE
))
1184 /* Search BLOCK for symbol NAME in NAMESPACE.
1186 Note that if NAME is the demangled form of a C++ symbol, we will fail
1187 to find a match during the binary search of the non-encoded names, but
1188 for now we don't worry about the slight inefficiency of looking for
1189 a match we'll never find, since it will go pretty quick. Once the
1190 binary search terminates, we drop through and do a straight linear
1191 search on the symbols. Each symbol which is marked as being a C++
1192 symbol (language_cplus set) has both the encoded and non-encoded names
1193 tested for a match. */
1196 lookup_block_symbol (register const struct block
*block
, const char *name
,
1197 const namespace_enum
namespace)
1199 register int bot
, top
, inc
;
1200 register struct symbol
*sym
;
1201 register struct symbol
*sym_found
= NULL
;
1202 register int do_linear_search
= 1;
1204 /* If the blocks's symbols were sorted, start with a binary search. */
1206 if (BLOCK_SHOULD_SORT (block
))
1208 /* Reset the linear search flag so if the binary search fails, we
1209 won't do the linear search once unless we find some reason to
1212 do_linear_search
= 0;
1213 top
= BLOCK_NSYMS (block
);
1216 /* Advance BOT to not far before the first symbol whose name is NAME. */
1220 inc
= (top
- bot
+ 1);
1221 /* No need to keep binary searching for the last few bits worth. */
1226 inc
= (inc
>> 1) + bot
;
1227 sym
= BLOCK_SYM (block
, inc
);
1228 if (!do_linear_search
&& (SYMBOL_LANGUAGE (sym
) == language_java
))
1230 do_linear_search
= 1;
1232 if (SYMBOL_SOURCE_NAME (sym
)[0] < name
[0])
1236 else if (SYMBOL_SOURCE_NAME (sym
)[0] > name
[0])
1240 else if (strcmp (SYMBOL_SOURCE_NAME (sym
), name
) < 0)
1250 /* Now scan forward until we run out of symbols, find one whose
1251 name is greater than NAME, or find one we want. If there is
1252 more than one symbol with the right name and namespace, we
1253 return the first one; I believe it is now impossible for us
1254 to encounter two symbols with the same name and namespace
1255 here, because blocks containing argument symbols are no
1258 top
= BLOCK_NSYMS (block
);
1261 sym
= BLOCK_SYM (block
, bot
);
1262 if (SYMBOL_NAMESPACE (sym
) == namespace &&
1263 SYMBOL_MATCHES_NAME (sym
, name
))
1271 /* Here if block isn't sorted, or we fail to find a match during the
1272 binary search above. If during the binary search above, we find a
1273 symbol which is a C++ symbol, then we have re-enabled the linear
1274 search flag which was reset when starting the binary search.
1276 This loop is equivalent to the loop above, but hacked greatly for speed.
1278 Note that parameter symbols do not always show up last in the
1279 list; this loop makes sure to take anything else other than
1280 parameter symbols first; it only uses parameter symbols as a
1281 last resort. Note that this only takes up extra computation
1284 if (do_linear_search
)
1286 top
= BLOCK_NSYMS (block
);
1290 sym
= BLOCK_SYM (block
, bot
);
1291 if (SYMBOL_NAMESPACE (sym
) == namespace &&
1292 SYMBOL_MATCHES_NAME (sym
, name
))
1294 /* If SYM has aliases, then use any alias that is active
1295 at the current PC. If no alias is active at the current
1296 PC, then use the main symbol.
1298 ?!? Is checking the current pc correct? Is this routine
1299 ever called to look up a symbol from another context?
1301 FIXME: No, it's not correct. If someone sets a
1302 conditional breakpoint at an address, then the
1303 breakpoint's `struct expression' should refer to the
1304 `struct symbol' appropriate for the breakpoint's
1305 address, which may not be the PC.
1307 Even if it were never called from another context,
1308 it's totally bizarre for lookup_symbol's behavior to
1309 depend on the value of the inferior's current PC. We
1310 should pass in the appropriate PC as well as the
1311 block. The interface to lookup_symbol should change
1312 to require the caller to provide a PC. */
1314 if (SYMBOL_ALIASES (sym
))
1315 sym
= find_active_alias (sym
, read_pc ());
1318 if (SYMBOL_CLASS (sym
) != LOC_ARG
&&
1319 SYMBOL_CLASS (sym
) != LOC_LOCAL_ARG
&&
1320 SYMBOL_CLASS (sym
) != LOC_REF_ARG
&&
1321 SYMBOL_CLASS (sym
) != LOC_REGPARM
&&
1322 SYMBOL_CLASS (sym
) != LOC_REGPARM_ADDR
&&
1323 SYMBOL_CLASS (sym
) != LOC_BASEREG_ARG
)
1331 return (sym_found
); /* Will be NULL if not found. */
1334 /* Given a main symbol SYM and ADDR, search through the alias
1335 list to determine if an alias is active at ADDR and return
1338 If no alias is active, then return SYM. */
1340 static struct symbol
*
1341 find_active_alias (struct symbol
*sym
, CORE_ADDR addr
)
1343 struct range_list
*r
;
1344 struct alias_list
*aliases
;
1346 /* If we have aliases, check them first. */
1347 aliases
= SYMBOL_ALIASES (sym
);
1351 if (!SYMBOL_RANGES (aliases
->sym
))
1352 return aliases
->sym
;
1353 for (r
= SYMBOL_RANGES (aliases
->sym
); r
; r
= r
->next
)
1355 if (r
->start
<= addr
&& r
->end
> addr
)
1356 return aliases
->sym
;
1358 aliases
= aliases
->next
;
1361 /* Nothing found, return the main symbol. */
1366 /* Return the symbol for the function which contains a specified
1367 lexical block, described by a struct block BL. */
1370 block_function (struct block
*bl
)
1372 while (BLOCK_FUNCTION (bl
) == 0 && BLOCK_SUPERBLOCK (bl
) != 0)
1373 bl
= BLOCK_SUPERBLOCK (bl
);
1375 return BLOCK_FUNCTION (bl
);
1378 /* Find the symtab associated with PC and SECTION. Look through the
1379 psymtabs and read in another symtab if necessary. */
1382 find_pc_sect_symtab (CORE_ADDR pc
, asection
*section
)
1384 register struct block
*b
;
1385 struct blockvector
*bv
;
1386 register struct symtab
*s
= NULL
;
1387 register struct symtab
*best_s
= NULL
;
1388 register struct partial_symtab
*ps
;
1389 register struct objfile
*objfile
;
1390 CORE_ADDR distance
= 0;
1392 /* Search all symtabs for the one whose file contains our address, and which
1393 is the smallest of all the ones containing the address. This is designed
1394 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1395 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1396 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1398 This happens for native ecoff format, where code from included files
1399 gets its own symtab. The symtab for the included file should have
1400 been read in already via the dependency mechanism.
1401 It might be swifter to create several symtabs with the same name
1402 like xcoff does (I'm not sure).
1404 It also happens for objfiles that have their functions reordered.
1405 For these, the symtab we are looking for is not necessarily read in. */
1407 ALL_SYMTABS (objfile
, s
)
1409 bv
= BLOCKVECTOR (s
);
1410 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1412 if (BLOCK_START (b
) <= pc
1413 && BLOCK_END (b
) > pc
1415 || BLOCK_END (b
) - BLOCK_START (b
) < distance
))
1417 /* For an objfile that has its functions reordered,
1418 find_pc_psymtab will find the proper partial symbol table
1419 and we simply return its corresponding symtab. */
1420 /* In order to better support objfiles that contain both
1421 stabs and coff debugging info, we continue on if a psymtab
1423 if ((objfile
->flags
& OBJF_REORDERED
) && objfile
->psymtabs
)
1425 ps
= find_pc_sect_psymtab (pc
, section
);
1427 return PSYMTAB_TO_SYMTAB (ps
);
1433 for (i
= 0; i
< b
->nsyms
; i
++)
1435 fixup_symbol_section (b
->sym
[i
], objfile
);
1436 if (section
== SYMBOL_BFD_SECTION (b
->sym
[i
]))
1440 continue; /* no symbol in this symtab matches section */
1442 distance
= BLOCK_END (b
) - BLOCK_START (b
);
1451 ps
= find_pc_sect_psymtab (pc
, section
);
1455 /* Might want to error() here (in case symtab is corrupt and
1456 will cause a core dump), but maybe we can successfully
1457 continue, so let's not. */
1459 (Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n",
1461 s
= PSYMTAB_TO_SYMTAB (ps
);
1466 /* Find the symtab associated with PC. Look through the psymtabs and
1467 read in another symtab if necessary. Backward compatibility, no section */
1470 find_pc_symtab (CORE_ADDR pc
)
1472 return find_pc_sect_symtab (pc
, find_pc_mapped_section (pc
));
1478 /* Find the closest symbol value (of any sort -- function or variable)
1479 for a given address value. Slow but complete. (currently unused,
1480 mainly because it is too slow. We could fix it if each symtab and
1481 psymtab had contained in it the addresses ranges of each of its
1482 sections, which also would be required to make things like "info
1483 line *0x2345" cause psymtabs to be converted to symtabs). */
1486 find_addr_symbol (CORE_ADDR addr
, struct symtab
**symtabp
, CORE_ADDR
*symaddrp
)
1488 struct symtab
*symtab
, *best_symtab
;
1489 struct objfile
*objfile
;
1490 register int bot
, top
;
1491 register struct symbol
*sym
;
1492 register CORE_ADDR sym_addr
;
1493 struct block
*block
;
1496 /* Info on best symbol seen so far */
1498 register CORE_ADDR best_sym_addr
= 0;
1499 struct symbol
*best_sym
= 0;
1501 /* FIXME -- we should pull in all the psymtabs, too! */
1502 ALL_SYMTABS (objfile
, symtab
)
1504 /* Search the global and static blocks in this symtab for
1505 the closest symbol-address to the desired address. */
1507 for (blocknum
= GLOBAL_BLOCK
; blocknum
<= STATIC_BLOCK
; blocknum
++)
1510 block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab
), blocknum
);
1511 top
= BLOCK_NSYMS (block
);
1512 for (bot
= 0; bot
< top
; bot
++)
1514 sym
= BLOCK_SYM (block
, bot
);
1515 switch (SYMBOL_CLASS (sym
))
1519 sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
1523 sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
1524 /* An indirect symbol really lives at *sym_addr,
1525 * so an indirection needs to be done.
1526 * However, I am leaving this commented out because it's
1527 * expensive, and it's possible that symbolization
1528 * could be done without an active process (in
1529 * case this read_memory will fail). RT
1530 sym_addr = read_memory_unsigned_integer
1531 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1536 sym_addr
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
1543 if (sym_addr
<= addr
)
1544 if (sym_addr
> best_sym_addr
)
1546 /* Quit if we found an exact match. */
1548 best_sym_addr
= sym_addr
;
1549 best_symtab
= symtab
;
1550 if (sym_addr
== addr
)
1559 *symtabp
= best_symtab
;
1561 *symaddrp
= best_sym_addr
;
1566 /* Find the source file and line number for a given PC value and SECTION.
1567 Return a structure containing a symtab pointer, a line number,
1568 and a pc range for the entire source line.
1569 The value's .pc field is NOT the specified pc.
1570 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1571 use the line that ends there. Otherwise, in that case, the line
1572 that begins there is used. */
1574 /* The big complication here is that a line may start in one file, and end just
1575 before the start of another file. This usually occurs when you #include
1576 code in the middle of a subroutine. To properly find the end of a line's PC
1577 range, we must search all symtabs associated with this compilation unit, and
1578 find the one whose first PC is closer than that of the next line in this
1581 /* If it's worth the effort, we could be using a binary search. */
1583 struct symtab_and_line
1584 find_pc_sect_line (CORE_ADDR pc
, struct sec
*section
, int notcurrent
)
1587 register struct linetable
*l
;
1590 register struct linetable_entry
*item
;
1591 struct symtab_and_line val
;
1592 struct blockvector
*bv
;
1593 struct minimal_symbol
*msymbol
;
1594 struct minimal_symbol
*mfunsym
;
1596 /* Info on best line seen so far, and where it starts, and its file. */
1598 struct linetable_entry
*best
= NULL
;
1599 CORE_ADDR best_end
= 0;
1600 struct symtab
*best_symtab
= 0;
1602 /* Store here the first line number
1603 of a file which contains the line at the smallest pc after PC.
1604 If we don't find a line whose range contains PC,
1605 we will use a line one less than this,
1606 with a range from the start of that file to the first line's pc. */
1607 struct linetable_entry
*alt
= NULL
;
1608 struct symtab
*alt_symtab
= 0;
1610 /* Info on best line seen in this file. */
1612 struct linetable_entry
*prev
;
1614 /* If this pc is not from the current frame,
1615 it is the address of the end of a call instruction.
1616 Quite likely that is the start of the following statement.
1617 But what we want is the statement containing the instruction.
1618 Fudge the pc to make sure we get that. */
1620 INIT_SAL (&val
); /* initialize to zeroes */
1625 /* elz: added this because this function returned the wrong
1626 information if the pc belongs to a stub (import/export)
1627 to call a shlib function. This stub would be anywhere between
1628 two functions in the target, and the line info was erroneously
1629 taken to be the one of the line before the pc.
1631 /* RT: Further explanation:
1633 * We have stubs (trampolines) inserted between procedures.
1635 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1636 * exists in the main image.
1638 * In the minimal symbol table, we have a bunch of symbols
1639 * sorted by start address. The stubs are marked as "trampoline",
1640 * the others appear as text. E.g.:
1642 * Minimal symbol table for main image
1643 * main: code for main (text symbol)
1644 * shr1: stub (trampoline symbol)
1645 * foo: code for foo (text symbol)
1647 * Minimal symbol table for "shr1" image:
1649 * shr1: code for shr1 (text symbol)
1652 * So the code below is trying to detect if we are in the stub
1653 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1654 * and if found, do the symbolization from the real-code address
1655 * rather than the stub address.
1657 * Assumptions being made about the minimal symbol table:
1658 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1659 * if we're really in the trampoline. If we're beyond it (say
1660 * we're in "foo" in the above example), it'll have a closer
1661 * symbol (the "foo" text symbol for example) and will not
1662 * return the trampoline.
1663 * 2. lookup_minimal_symbol_text() will find a real text symbol
1664 * corresponding to the trampoline, and whose address will
1665 * be different than the trampoline address. I put in a sanity
1666 * check for the address being the same, to avoid an
1667 * infinite recursion.
1669 msymbol
= lookup_minimal_symbol_by_pc (pc
);
1670 if (msymbol
!= NULL
)
1671 if (MSYMBOL_TYPE (msymbol
) == mst_solib_trampoline
)
1673 mfunsym
= lookup_minimal_symbol_text (SYMBOL_NAME (msymbol
), NULL
, NULL
);
1674 if (mfunsym
== NULL
)
1675 /* I eliminated this warning since it is coming out
1676 * in the following situation:
1677 * gdb shmain // test program with shared libraries
1678 * (gdb) break shr1 // function in shared lib
1679 * Warning: In stub for ...
1680 * In the above situation, the shared lib is not loaded yet,
1681 * so of course we can't find the real func/line info,
1682 * but the "break" still works, and the warning is annoying.
1683 * So I commented out the warning. RT */
1684 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1686 else if (SYMBOL_VALUE (mfunsym
) == SYMBOL_VALUE (msymbol
))
1687 /* Avoid infinite recursion */
1688 /* See above comment about why warning is commented out */
1689 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1692 return find_pc_line (SYMBOL_VALUE (mfunsym
), 0);
1696 s
= find_pc_sect_symtab (pc
, section
);
1699 /* if no symbol information, return previous pc */
1706 bv
= BLOCKVECTOR (s
);
1708 /* Look at all the symtabs that share this blockvector.
1709 They all have the same apriori range, that we found was right;
1710 but they have different line tables. */
1712 for (; s
&& BLOCKVECTOR (s
) == bv
; s
= s
->next
)
1714 /* Find the best line in this symtab. */
1721 /* I think len can be zero if the symtab lacks line numbers
1722 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1723 I'm not sure which, and maybe it depends on the symbol
1729 item
= l
->item
; /* Get first line info */
1731 /* Is this file's first line closer than the first lines of other files?
1732 If so, record this file, and its first line, as best alternate. */
1733 if (item
->pc
> pc
&& (!alt
|| item
->pc
< alt
->pc
))
1739 for (i
= 0; i
< len
; i
++, item
++)
1741 /* Leave prev pointing to the linetable entry for the last line
1742 that started at or before PC. */
1749 /* At this point, prev points at the line whose start addr is <= pc, and
1750 item points at the next line. If we ran off the end of the linetable
1751 (pc >= start of the last line), then prev == item. If pc < start of
1752 the first line, prev will not be set. */
1754 /* Is this file's best line closer than the best in the other files?
1755 If so, record this file, and its best line, as best so far. */
1757 if (prev
&& (!best
|| prev
->pc
> best
->pc
))
1761 /* If another line is in the linetable, and its PC is closer
1762 than the best_end we currently have, take it as best_end. */
1763 if (i
< len
&& (best_end
== 0 || best_end
> item
->pc
))
1764 best_end
= item
->pc
;
1771 { /* If we didn't find any line # info, just
1777 val
.symtab
= alt_symtab
;
1778 val
.line
= alt
->line
- 1;
1780 /* Don't return line 0, that means that we didn't find the line. */
1784 val
.pc
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1790 val
.symtab
= best_symtab
;
1791 val
.line
= best
->line
;
1793 if (best_end
&& (!alt
|| best_end
< alt
->pc
))
1798 val
.end
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1800 val
.section
= section
;
1804 /* Backward compatibility (no section) */
1806 struct symtab_and_line
1807 find_pc_line (CORE_ADDR pc
, int notcurrent
)
1811 section
= find_pc_overlay (pc
);
1812 if (pc_in_unmapped_range (pc
, section
))
1813 pc
= overlay_mapped_address (pc
, section
);
1814 return find_pc_sect_line (pc
, section
, notcurrent
);
1817 /* Find line number LINE in any symtab whose name is the same as
1820 If found, return the symtab that contains the linetable in which it was
1821 found, set *INDEX to the index in the linetable of the best entry
1822 found, and set *EXACT_MATCH nonzero if the value returned is an
1825 If not found, return NULL. */
1828 find_line_symtab (struct symtab
*symtab
, int line
, int *index
, int *exact_match
)
1832 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1836 struct linetable
*best_linetable
;
1837 struct symtab
*best_symtab
;
1839 /* First try looking it up in the given symtab. */
1840 best_linetable
= LINETABLE (symtab
);
1841 best_symtab
= symtab
;
1842 best_index
= find_line_common (best_linetable
, line
, &exact
);
1843 if (best_index
< 0 || !exact
)
1845 /* Didn't find an exact match. So we better keep looking for
1846 another symtab with the same name. In the case of xcoff,
1847 multiple csects for one source file (produced by IBM's FORTRAN
1848 compiler) produce multiple symtabs (this is unavoidable
1849 assuming csects can be at arbitrary places in memory and that
1850 the GLOBAL_BLOCK of a symtab has a begin and end address). */
1852 /* BEST is the smallest linenumber > LINE so far seen,
1853 or 0 if none has been seen so far.
1854 BEST_INDEX and BEST_LINETABLE identify the item for it. */
1857 struct objfile
*objfile
;
1860 if (best_index
>= 0)
1861 best
= best_linetable
->item
[best_index
].line
;
1865 ALL_SYMTABS (objfile
, s
)
1867 struct linetable
*l
;
1870 if (!STREQ (symtab
->filename
, s
->filename
))
1873 ind
= find_line_common (l
, line
, &exact
);
1883 if (best
== 0 || l
->item
[ind
].line
< best
)
1885 best
= l
->item
[ind
].line
;
1898 *index
= best_index
;
1900 *exact_match
= exact
;
1905 /* Set the PC value for a given source file and line number and return true.
1906 Returns zero for invalid line number (and sets the PC to 0).
1907 The source file is specified with a struct symtab. */
1910 find_line_pc (struct symtab
*symtab
, int line
, CORE_ADDR
*pc
)
1912 struct linetable
*l
;
1919 symtab
= find_line_symtab (symtab
, line
, &ind
, NULL
);
1922 l
= LINETABLE (symtab
);
1923 *pc
= l
->item
[ind
].pc
;
1930 /* Find the range of pc values in a line.
1931 Store the starting pc of the line into *STARTPTR
1932 and the ending pc (start of next line) into *ENDPTR.
1933 Returns 1 to indicate success.
1934 Returns 0 if could not find the specified line. */
1937 find_line_pc_range (struct symtab_and_line sal
, CORE_ADDR
*startptr
,
1940 CORE_ADDR startaddr
;
1941 struct symtab_and_line found_sal
;
1944 if (startaddr
== 0 && !find_line_pc (sal
.symtab
, sal
.line
, &startaddr
))
1947 /* This whole function is based on address. For example, if line 10 has
1948 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
1949 "info line *0x123" should say the line goes from 0x100 to 0x200
1950 and "info line *0x355" should say the line goes from 0x300 to 0x400.
1951 This also insures that we never give a range like "starts at 0x134
1952 and ends at 0x12c". */
1954 found_sal
= find_pc_sect_line (startaddr
, sal
.section
, 0);
1955 if (found_sal
.line
!= sal
.line
)
1957 /* The specified line (sal) has zero bytes. */
1958 *startptr
= found_sal
.pc
;
1959 *endptr
= found_sal
.pc
;
1963 *startptr
= found_sal
.pc
;
1964 *endptr
= found_sal
.end
;
1969 /* Given a line table and a line number, return the index into the line
1970 table for the pc of the nearest line whose number is >= the specified one.
1971 Return -1 if none is found. The value is >= 0 if it is an index.
1973 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
1976 find_line_common (register struct linetable
*l
, register int lineno
,
1982 /* BEST is the smallest linenumber > LINENO so far seen,
1983 or 0 if none has been seen so far.
1984 BEST_INDEX identifies the item for it. */
1986 int best_index
= -1;
1995 for (i
= 0; i
< len
; i
++)
1997 register struct linetable_entry
*item
= &(l
->item
[i
]);
1999 if (item
->line
== lineno
)
2001 /* Return the first (lowest address) entry which matches. */
2006 if (item
->line
> lineno
&& (best
== 0 || item
->line
< best
))
2013 /* If we got here, we didn't get an exact match. */
2020 find_pc_line_pc_range (CORE_ADDR pc
, CORE_ADDR
*startptr
, CORE_ADDR
*endptr
)
2022 struct symtab_and_line sal
;
2023 sal
= find_pc_line (pc
, 0);
2026 return sal
.symtab
!= 0;
2029 /* Given a function symbol SYM, find the symtab and line for the start
2031 If the argument FUNFIRSTLINE is nonzero, we want the first line
2032 of real code inside the function. */
2034 struct symtab_and_line
2035 find_function_start_sal (struct symbol
*sym
, int funfirstline
)
2038 struct symtab_and_line sal
;
2040 pc
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
2041 fixup_symbol_section (sym
, NULL
);
2043 { /* skip "first line" of function (which is actually its prologue) */
2044 asection
*section
= SYMBOL_BFD_SECTION (sym
);
2045 /* If function is in an unmapped overlay, use its unmapped LMA
2046 address, so that SKIP_PROLOGUE has something unique to work on */
2047 if (section_is_overlay (section
) &&
2048 !section_is_mapped (section
))
2049 pc
= overlay_unmapped_address (pc
, section
);
2051 pc
+= FUNCTION_START_OFFSET
;
2052 pc
= SKIP_PROLOGUE (pc
);
2054 /* For overlays, map pc back into its mapped VMA range */
2055 pc
= overlay_mapped_address (pc
, section
);
2057 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2059 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2060 /* Convex: no need to suppress code on first line, if any */
2063 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2064 line is still part of the same function. */
2066 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym
)) <= sal
.end
2067 && sal
.end
< BLOCK_END (SYMBOL_BLOCK_VALUE (sym
)))
2069 /* First pc of next line */
2071 /* Recalculate the line number (might not be N+1). */
2072 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2080 /* If P is of the form "operator[ \t]+..." where `...' is
2081 some legitimate operator text, return a pointer to the
2082 beginning of the substring of the operator text.
2083 Otherwise, return "". */
2085 operator_chars (char *p
, char **end
)
2088 if (strncmp (p
, "operator", 8))
2092 /* Don't get faked out by `operator' being part of a longer
2094 if (isalpha (*p
) || *p
== '_' || *p
== '$' || *p
== '\0')
2097 /* Allow some whitespace between `operator' and the operator symbol. */
2098 while (*p
== ' ' || *p
== '\t')
2101 /* Recognize 'operator TYPENAME'. */
2103 if (isalpha (*p
) || *p
== '_' || *p
== '$')
2105 register char *q
= p
+ 1;
2106 while (isalnum (*q
) || *q
== '_' || *q
== '$')
2131 if (p
[1] == '=' || p
[1] == p
[0])
2142 error ("`operator ()' must be specified without whitespace in `()'");
2147 error ("`operator ?:' must be specified without whitespace in `?:'");
2152 error ("`operator []' must be specified without whitespace in `[]'");
2156 error ("`operator %s' not supported", p
);
2164 /* Slave routine for sources_info. Force line breaks at ,'s.
2165 NAME is the name to print and *FIRST is nonzero if this is the first
2166 name printed. Set *FIRST to zero. */
2168 output_source_filename (char *name
, int *first
)
2170 /* Table of files printed so far. Since a single source file can
2171 result in several partial symbol tables, we need to avoid printing
2172 it more than once. Note: if some of the psymtabs are read in and
2173 some are not, it gets printed both under "Source files for which
2174 symbols have been read" and "Source files for which symbols will
2175 be read in on demand". I consider this a reasonable way to deal
2176 with the situation. I'm not sure whether this can also happen for
2177 symtabs; it doesn't hurt to check. */
2178 static char **tab
= NULL
;
2179 /* Allocated size of tab in elements.
2180 Start with one 256-byte block (when using GNU malloc.c).
2181 24 is the malloc overhead when range checking is in effect. */
2182 static int tab_alloc_size
= (256 - 24) / sizeof (char *);
2183 /* Current size of tab in elements. */
2184 static int tab_cur_size
;
2191 tab
= (char **) xmalloc (tab_alloc_size
* sizeof (*tab
));
2195 /* Is NAME in tab? */
2196 for (p
= tab
; p
< tab
+ tab_cur_size
; p
++)
2197 if (STREQ (*p
, name
))
2198 /* Yes; don't print it again. */
2200 /* No; add it to tab. */
2201 if (tab_cur_size
== tab_alloc_size
)
2203 tab_alloc_size
*= 2;
2204 tab
= (char **) xrealloc ((char *) tab
, tab_alloc_size
* sizeof (*tab
));
2206 tab
[tab_cur_size
++] = name
;
2214 printf_filtered (", ");
2218 fputs_filtered (name
, gdb_stdout
);
2222 sources_info (char *ignore
, int from_tty
)
2224 register struct symtab
*s
;
2225 register struct partial_symtab
*ps
;
2226 register struct objfile
*objfile
;
2229 if (!have_full_symbols () && !have_partial_symbols ())
2231 error ("No symbol table is loaded. Use the \"file\" command.");
2234 printf_filtered ("Source files for which symbols have been read in:\n\n");
2237 ALL_SYMTABS (objfile
, s
)
2239 output_source_filename (s
->filename
, &first
);
2241 printf_filtered ("\n\n");
2243 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
2246 ALL_PSYMTABS (objfile
, ps
)
2250 output_source_filename (ps
->filename
, &first
);
2253 printf_filtered ("\n");
2257 file_matches (char *file
, char *files
[], int nfiles
)
2261 if (file
!= NULL
&& nfiles
!= 0)
2263 for (i
= 0; i
< nfiles
; i
++)
2265 if (strcmp (files
[i
], basename (file
)) == 0)
2269 else if (nfiles
== 0)
2274 /* Free any memory associated with a search. */
2276 free_search_symbols (struct symbol_search
*symbols
)
2278 struct symbol_search
*p
;
2279 struct symbol_search
*next
;
2281 for (p
= symbols
; p
!= NULL
; p
= next
)
2289 do_free_search_symbols_cleanup (void *symbols
)
2291 free_search_symbols (symbols
);
2295 make_cleanup_free_search_symbols (struct symbol_search
*symbols
)
2297 return make_cleanup (do_free_search_symbols_cleanup
, symbols
);
2301 /* Search the symbol table for matches to the regular expression REGEXP,
2302 returning the results in *MATCHES.
2304 Only symbols of KIND are searched:
2305 FUNCTIONS_NAMESPACE - search all functions
2306 TYPES_NAMESPACE - search all type names
2307 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
2308 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
2309 and constants (enums)
2311 free_search_symbols should be called when *MATCHES is no longer needed.
2314 search_symbols (char *regexp
, namespace_enum kind
, int nfiles
, char *files
[],
2315 struct symbol_search
**matches
)
2317 register struct symtab
*s
;
2318 register struct partial_symtab
*ps
;
2319 register struct blockvector
*bv
;
2320 struct blockvector
*prev_bv
= 0;
2321 register struct block
*b
;
2324 register struct symbol
*sym
;
2325 struct partial_symbol
**psym
;
2326 struct objfile
*objfile
;
2327 struct minimal_symbol
*msymbol
;
2330 static enum minimal_symbol_type types
[]
2332 {mst_data
, mst_text
, mst_abs
, mst_unknown
};
2333 static enum minimal_symbol_type types2
[]
2335 {mst_bss
, mst_file_text
, mst_abs
, mst_unknown
};
2336 static enum minimal_symbol_type types3
[]
2338 {mst_file_data
, mst_solib_trampoline
, mst_abs
, mst_unknown
};
2339 static enum minimal_symbol_type types4
[]
2341 {mst_file_bss
, mst_text
, mst_abs
, mst_unknown
};
2342 enum minimal_symbol_type ourtype
;
2343 enum minimal_symbol_type ourtype2
;
2344 enum minimal_symbol_type ourtype3
;
2345 enum minimal_symbol_type ourtype4
;
2346 struct symbol_search
*sr
;
2347 struct symbol_search
*psr
;
2348 struct symbol_search
*tail
;
2349 struct cleanup
*old_chain
= NULL
;
2351 if (kind
< LABEL_NAMESPACE
)
2352 error ("must search on specific namespace");
2354 ourtype
= types
[(int) (kind
- VARIABLES_NAMESPACE
)];
2355 ourtype2
= types2
[(int) (kind
- VARIABLES_NAMESPACE
)];
2356 ourtype3
= types3
[(int) (kind
- VARIABLES_NAMESPACE
)];
2357 ourtype4
= types4
[(int) (kind
- VARIABLES_NAMESPACE
)];
2359 sr
= *matches
= NULL
;
2364 /* Make sure spacing is right for C++ operators.
2365 This is just a courtesy to make the matching less sensitive
2366 to how many spaces the user leaves between 'operator'
2367 and <TYPENAME> or <OPERATOR>. */
2369 char *opname
= operator_chars (regexp
, &opend
);
2372 int fix
= -1; /* -1 means ok; otherwise number of spaces needed. */
2373 if (isalpha (*opname
) || *opname
== '_' || *opname
== '$')
2375 /* There should 1 space between 'operator' and 'TYPENAME'. */
2376 if (opname
[-1] != ' ' || opname
[-2] == ' ')
2381 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
2382 if (opname
[-1] == ' ')
2385 /* If wrong number of spaces, fix it. */
2388 char *tmp
= (char *) alloca (opend
- opname
+ 10);
2389 sprintf (tmp
, "operator%.*s%s", fix
, " ", opname
);
2394 if (0 != (val
= re_comp (regexp
)))
2395 error ("Invalid regexp (%s): %s", val
, regexp
);
2398 /* Search through the partial symtabs *first* for all symbols
2399 matching the regexp. That way we don't have to reproduce all of
2400 the machinery below. */
2402 ALL_PSYMTABS (objfile
, ps
)
2404 struct partial_symbol
**bound
, **gbound
, **sbound
;
2410 gbound
= objfile
->global_psymbols
.list
+ ps
->globals_offset
+ ps
->n_global_syms
;
2411 sbound
= objfile
->static_psymbols
.list
+ ps
->statics_offset
+ ps
->n_static_syms
;
2414 /* Go through all of the symbols stored in a partial
2415 symtab in one loop. */
2416 psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
2421 if (bound
== gbound
&& ps
->n_static_syms
!= 0)
2423 psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
2434 /* If it would match (logic taken from loop below)
2435 load the file and go on to the next one */
2436 if (file_matches (ps
->filename
, files
, nfiles
)
2437 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (*psym
))
2438 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (*psym
) != LOC_TYPEDEF
2439 && SYMBOL_CLASS (*psym
) != LOC_BLOCK
)
2440 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
)
2441 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_TYPEDEF
)
2442 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
))))
2444 PSYMTAB_TO_SYMTAB (ps
);
2452 /* Here, we search through the minimal symbol tables for functions
2453 and variables that match, and force their symbols to be read.
2454 This is in particular necessary for demangled variable names,
2455 which are no longer put into the partial symbol tables.
2456 The symbol will then be found during the scan of symtabs below.
2458 For functions, find_pc_symtab should succeed if we have debug info
2459 for the function, for variables we have to call lookup_symbol
2460 to determine if the variable has debug info.
2461 If the lookup fails, set found_misc so that we will rescan to print
2462 any matching symbols without debug info.
2465 if (nfiles
== 0 && (kind
== VARIABLES_NAMESPACE
|| kind
== FUNCTIONS_NAMESPACE
))
2467 ALL_MSYMBOLS (objfile
, msymbol
)
2469 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
2470 MSYMBOL_TYPE (msymbol
) == ourtype2
||
2471 MSYMBOL_TYPE (msymbol
) == ourtype3
||
2472 MSYMBOL_TYPE (msymbol
) == ourtype4
)
2474 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
2476 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
)))
2478 if (kind
== FUNCTIONS_NAMESPACE
2479 || lookup_symbol (SYMBOL_NAME (msymbol
),
2480 (struct block
*) NULL
,
2482 0, (struct symtab
**) NULL
) == NULL
)
2490 ALL_SYMTABS (objfile
, s
)
2492 bv
= BLOCKVECTOR (s
);
2493 /* Often many files share a blockvector.
2494 Scan each blockvector only once so that
2495 we don't get every symbol many times.
2496 It happens that the first symtab in the list
2497 for any given blockvector is the main file. */
2499 for (i
= GLOBAL_BLOCK
; i
<= STATIC_BLOCK
; i
++)
2501 b
= BLOCKVECTOR_BLOCK (bv
, i
);
2502 /* Skip the sort if this block is always sorted. */
2503 if (!BLOCK_SHOULD_SORT (b
))
2504 sort_block_syms (b
);
2505 for (j
= 0; j
< BLOCK_NSYMS (b
); j
++)
2508 sym
= BLOCK_SYM (b
, j
);
2509 if (file_matches (s
->filename
, files
, nfiles
)
2510 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (sym
))
2511 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (sym
) != LOC_TYPEDEF
2512 && SYMBOL_CLASS (sym
) != LOC_BLOCK
2513 && SYMBOL_CLASS (sym
) != LOC_CONST
)
2514 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
)
2515 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
2516 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
))))
2519 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
2523 psr
->msymbol
= NULL
;
2528 old_chain
= make_cleanup_free_search_symbols (sr
);
2539 /* If there are no eyes, avoid all contact. I mean, if there are
2540 no debug symbols, then print directly from the msymbol_vector. */
2542 if (found_misc
|| kind
!= FUNCTIONS_NAMESPACE
)
2544 ALL_MSYMBOLS (objfile
, msymbol
)
2546 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
2547 MSYMBOL_TYPE (msymbol
) == ourtype2
||
2548 MSYMBOL_TYPE (msymbol
) == ourtype3
||
2549 MSYMBOL_TYPE (msymbol
) == ourtype4
)
2551 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
2553 /* Functions: Look up by address. */
2554 if (kind
!= FUNCTIONS_NAMESPACE
||
2555 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
))))
2557 /* Variables/Absolutes: Look up by name */
2558 if (lookup_symbol (SYMBOL_NAME (msymbol
),
2559 (struct block
*) NULL
, VAR_NAMESPACE
,
2560 0, (struct symtab
**) NULL
) == NULL
)
2563 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
2565 psr
->msymbol
= msymbol
;
2572 old_chain
= make_cleanup_free_search_symbols (sr
);
2586 discard_cleanups (old_chain
);
2589 /* Helper function for symtab_symbol_info, this function uses
2590 the data returned from search_symbols() to print information
2591 regarding the match to gdb_stdout.
2594 print_symbol_info (namespace_enum kind
, struct symtab
*s
, struct symbol
*sym
,
2595 int block
, char *last
)
2597 if (last
== NULL
|| strcmp (last
, s
->filename
) != 0)
2599 fputs_filtered ("\nFile ", gdb_stdout
);
2600 fputs_filtered (s
->filename
, gdb_stdout
);
2601 fputs_filtered (":\n", gdb_stdout
);
2604 if (kind
!= TYPES_NAMESPACE
&& block
== STATIC_BLOCK
)
2605 printf_filtered ("static ");
2607 /* Typedef that is not a C++ class */
2608 if (kind
== TYPES_NAMESPACE
2609 && SYMBOL_NAMESPACE (sym
) != STRUCT_NAMESPACE
)
2610 typedef_print (SYMBOL_TYPE (sym
), sym
, gdb_stdout
);
2611 /* variable, func, or typedef-that-is-c++-class */
2612 else if (kind
< TYPES_NAMESPACE
||
2613 (kind
== TYPES_NAMESPACE
&&
2614 SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
))
2616 type_print (SYMBOL_TYPE (sym
),
2617 (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
2618 ? "" : SYMBOL_SOURCE_NAME (sym
)),
2621 printf_filtered (";\n");
2626 /* Tiemann says: "info methods was never implemented." */
2627 char *demangled_name
;
2628 c_type_print_base (TYPE_FN_FIELD_TYPE (t
, block
),
2630 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t
, block
),
2632 if (TYPE_FN_FIELD_STUB (t
, block
))
2633 check_stub_method (TYPE_DOMAIN_TYPE (type
), j
, block
);
2635 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t
, block
),
2636 DMGL_ANSI
| DMGL_PARAMS
);
2637 if (demangled_name
== NULL
)
2638 fprintf_filtered (stream
, "<badly mangled name %s>",
2639 TYPE_FN_FIELD_PHYSNAME (t
, block
));
2642 fputs_filtered (demangled_name
, stream
);
2643 xfree (demangled_name
);
2649 /* This help function for symtab_symbol_info() prints information
2650 for non-debugging symbols to gdb_stdout.
2653 print_msymbol_info (struct minimal_symbol
*msymbol
)
2655 printf_filtered (" %08lx %s\n",
2656 (unsigned long) SYMBOL_VALUE_ADDRESS (msymbol
),
2657 SYMBOL_SOURCE_NAME (msymbol
));
2660 /* This is the guts of the commands "info functions", "info types", and
2661 "info variables". It calls search_symbols to find all matches and then
2662 print_[m]symbol_info to print out some useful information about the
2666 symtab_symbol_info (char *regexp
, namespace_enum kind
, int from_tty
)
2668 static char *classnames
[]
2670 {"variable", "function", "type", "method"};
2671 struct symbol_search
*symbols
;
2672 struct symbol_search
*p
;
2673 struct cleanup
*old_chain
;
2674 char *last_filename
= NULL
;
2677 /* must make sure that if we're interrupted, symbols gets freed */
2678 search_symbols (regexp
, kind
, 0, (char **) NULL
, &symbols
);
2679 old_chain
= make_cleanup_free_search_symbols (symbols
);
2681 printf_filtered (regexp
2682 ? "All %ss matching regular expression \"%s\":\n"
2683 : "All defined %ss:\n",
2684 classnames
[(int) (kind
- VARIABLES_NAMESPACE
)], regexp
);
2686 for (p
= symbols
; p
!= NULL
; p
= p
->next
)
2690 if (p
->msymbol
!= NULL
)
2694 printf_filtered ("\nNon-debugging symbols:\n");
2697 print_msymbol_info (p
->msymbol
);
2701 print_symbol_info (kind
,
2706 last_filename
= p
->symtab
->filename
;
2710 do_cleanups (old_chain
);
2714 variables_info (char *regexp
, int from_tty
)
2716 symtab_symbol_info (regexp
, VARIABLES_NAMESPACE
, from_tty
);
2720 functions_info (char *regexp
, int from_tty
)
2722 symtab_symbol_info (regexp
, FUNCTIONS_NAMESPACE
, from_tty
);
2727 types_info (char *regexp
, int from_tty
)
2729 symtab_symbol_info (regexp
, TYPES_NAMESPACE
, from_tty
);
2733 /* Tiemann says: "info methods was never implemented." */
2735 methods_info (char *regexp
)
2737 symtab_symbol_info (regexp
, METHODS_NAMESPACE
, 0, from_tty
);
2741 /* Breakpoint all functions matching regular expression. */
2744 rbreak_command_wrapper (char *regexp
, int from_tty
)
2746 rbreak_command (regexp
, from_tty
);
2750 rbreak_command (char *regexp
, int from_tty
)
2752 struct symbol_search
*ss
;
2753 struct symbol_search
*p
;
2754 struct cleanup
*old_chain
;
2756 search_symbols (regexp
, FUNCTIONS_NAMESPACE
, 0, (char **) NULL
, &ss
);
2757 old_chain
= make_cleanup_free_search_symbols (ss
);
2759 for (p
= ss
; p
!= NULL
; p
= p
->next
)
2761 if (p
->msymbol
== NULL
)
2763 char *string
= (char *) alloca (strlen (p
->symtab
->filename
)
2764 + strlen (SYMBOL_NAME (p
->symbol
))
2766 strcpy (string
, p
->symtab
->filename
);
2767 strcat (string
, ":'");
2768 strcat (string
, SYMBOL_NAME (p
->symbol
));
2769 strcat (string
, "'");
2770 break_command (string
, from_tty
);
2771 print_symbol_info (FUNCTIONS_NAMESPACE
,
2775 p
->symtab
->filename
);
2779 break_command (SYMBOL_NAME (p
->msymbol
), from_tty
);
2780 printf_filtered ("<function, no debug info> %s;\n",
2781 SYMBOL_SOURCE_NAME (p
->msymbol
));
2785 do_cleanups (old_chain
);
2789 /* Return Nonzero if block a is lexically nested within block b,
2790 or if a and b have the same pc range.
2791 Return zero otherwise. */
2793 contained_in (struct block
*a
, struct block
*b
)
2797 return BLOCK_START (a
) >= BLOCK_START (b
)
2798 && BLOCK_END (a
) <= BLOCK_END (b
);
2802 /* Helper routine for make_symbol_completion_list. */
2804 static int return_val_size
;
2805 static int return_val_index
;
2806 static char **return_val
;
2808 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
2810 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
2811 /* Put only the mangled name on the list. */ \
2812 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
2813 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
2814 completion_list_add_name \
2815 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
2817 completion_list_add_name \
2818 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
2821 /* Test to see if the symbol specified by SYMNAME (which is already
2822 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
2823 characters. If so, add it to the current completion list. */
2826 completion_list_add_name (char *symname
, char *sym_text
, int sym_text_len
,
2827 char *text
, char *word
)
2832 /* clip symbols that cannot match */
2834 if (strncmp (symname
, sym_text
, sym_text_len
) != 0)
2839 /* Clip any symbol names that we've already considered. (This is a
2840 time optimization) */
2842 for (i
= 0; i
< return_val_index
; ++i
)
2844 if (STREQ (symname
, return_val
[i
]))
2850 /* We have a match for a completion, so add SYMNAME to the current list
2851 of matches. Note that the name is moved to freshly malloc'd space. */
2855 if (word
== sym_text
)
2857 new = xmalloc (strlen (symname
) + 5);
2858 strcpy (new, symname
);
2860 else if (word
> sym_text
)
2862 /* Return some portion of symname. */
2863 new = xmalloc (strlen (symname
) + 5);
2864 strcpy (new, symname
+ (word
- sym_text
));
2868 /* Return some of SYM_TEXT plus symname. */
2869 new = xmalloc (strlen (symname
) + (sym_text
- word
) + 5);
2870 strncpy (new, word
, sym_text
- word
);
2871 new[sym_text
- word
] = '\0';
2872 strcat (new, symname
);
2875 /* Recheck for duplicates if we intend to add a modified symbol. */
2876 if (word
!= sym_text
)
2878 for (i
= 0; i
< return_val_index
; ++i
)
2880 if (STREQ (new, return_val
[i
]))
2888 if (return_val_index
+ 3 > return_val_size
)
2890 newsize
= (return_val_size
*= 2) * sizeof (char *);
2891 return_val
= (char **) xrealloc ((char *) return_val
, newsize
);
2893 return_val
[return_val_index
++] = new;
2894 return_val
[return_val_index
] = NULL
;
2898 /* Return a NULL terminated array of all symbols (regardless of class) which
2899 begin by matching TEXT. If the answer is no symbols, then the return value
2900 is an array which contains only a NULL pointer.
2902 Problem: All of the symbols have to be copied because readline frees them.
2903 I'm not going to worry about this; hopefully there won't be that many. */
2906 make_symbol_completion_list (char *text
, char *word
)
2908 register struct symbol
*sym
;
2909 register struct symtab
*s
;
2910 register struct partial_symtab
*ps
;
2911 register struct minimal_symbol
*msymbol
;
2912 register struct objfile
*objfile
;
2913 register struct block
*b
, *surrounding_static_block
= 0;
2915 struct partial_symbol
**psym
;
2916 /* The symbol we are completing on. Points in same buffer as text. */
2918 /* Length of sym_text. */
2921 /* Now look for the symbol we are supposed to complete on.
2922 FIXME: This should be language-specific. */
2926 char *quote_pos
= NULL
;
2928 /* First see if this is a quoted string. */
2930 for (p
= text
; *p
!= '\0'; ++p
)
2932 if (quote_found
!= '\0')
2934 if (*p
== quote_found
)
2935 /* Found close quote. */
2937 else if (*p
== '\\' && p
[1] == quote_found
)
2938 /* A backslash followed by the quote character
2939 doesn't end the string. */
2942 else if (*p
== '\'' || *p
== '"')
2948 if (quote_found
== '\'')
2949 /* A string within single quotes can be a symbol, so complete on it. */
2950 sym_text
= quote_pos
+ 1;
2951 else if (quote_found
== '"')
2952 /* A double-quoted string is never a symbol, nor does it make sense
2953 to complete it any other way. */
2957 /* It is not a quoted string. Break it based on the characters
2958 which are in symbols. */
2961 if (isalnum (p
[-1]) || p
[-1] == '_' || p
[-1] == '\0')
2970 sym_text_len
= strlen (sym_text
);
2972 return_val_size
= 100;
2973 return_val_index
= 0;
2974 return_val
= (char **) xmalloc ((return_val_size
+ 1) * sizeof (char *));
2975 return_val
[0] = NULL
;
2977 /* Look through the partial symtabs for all symbols which begin
2978 by matching SYM_TEXT. Add each one that you find to the list. */
2980 ALL_PSYMTABS (objfile
, ps
)
2982 /* If the psymtab's been read in we'll get it when we search
2983 through the blockvector. */
2987 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
2988 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
2989 + ps
->n_global_syms
);
2992 /* If interrupted, then quit. */
2994 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
2997 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
2998 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
2999 + ps
->n_static_syms
);
3003 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
3007 /* At this point scan through the misc symbol vectors and add each
3008 symbol you find to the list. Eventually we want to ignore
3009 anything that isn't a text symbol (everything else will be
3010 handled by the psymtab code above). */
3012 ALL_MSYMBOLS (objfile
, msymbol
)
3015 COMPLETION_LIST_ADD_SYMBOL (msymbol
, sym_text
, sym_text_len
, text
, word
);
3018 /* Search upwards from currently selected frame (so that we can
3019 complete on local vars. */
3021 for (b
= get_selected_block (); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
3023 if (!BLOCK_SUPERBLOCK (b
))
3025 surrounding_static_block
= b
; /* For elmin of dups */
3028 /* Also catch fields of types defined in this places which match our
3029 text string. Only complete on types visible from current context. */
3031 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3033 sym
= BLOCK_SYM (b
, i
);
3034 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3035 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
3037 struct type
*t
= SYMBOL_TYPE (sym
);
3038 enum type_code c
= TYPE_CODE (t
);
3040 if (c
== TYPE_CODE_UNION
|| c
== TYPE_CODE_STRUCT
)
3042 for (j
= TYPE_N_BASECLASSES (t
); j
< TYPE_NFIELDS (t
); j
++)
3044 if (TYPE_FIELD_NAME (t
, j
))
3046 completion_list_add_name (TYPE_FIELD_NAME (t
, j
),
3047 sym_text
, sym_text_len
, text
, word
);
3055 /* Go through the symtabs and check the externs and statics for
3056 symbols which match. */
3058 ALL_SYMTABS (objfile
, s
)
3061 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3062 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3064 sym
= BLOCK_SYM (b
, i
);
3065 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3069 ALL_SYMTABS (objfile
, s
)
3072 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3073 /* Don't do this block twice. */
3074 if (b
== surrounding_static_block
)
3076 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3078 sym
= BLOCK_SYM (b
, i
);
3079 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3083 return (return_val
);
3086 /* Determine if PC is in the prologue of a function. The prologue is the area
3087 between the first instruction of a function, and the first executable line.
3088 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
3090 If non-zero, func_start is where we think the prologue starts, possibly
3091 by previous examination of symbol table information.
3095 in_prologue (CORE_ADDR pc
, CORE_ADDR func_start
)
3097 struct symtab_and_line sal
;
3098 CORE_ADDR func_addr
, func_end
;
3100 /* We have several sources of information we can consult to figure
3102 - Compilers usually emit line number info that marks the prologue
3103 as its own "source line". So the ending address of that "line"
3104 is the end of the prologue. If available, this is the most
3106 - The minimal symbols and partial symbols, which can usually tell
3107 us the starting and ending addresses of a function.
3108 - If we know the function's start address, we can call the
3109 architecture-defined SKIP_PROLOGUE function to analyze the
3110 instruction stream and guess where the prologue ends.
3111 - Our `func_start' argument; if non-zero, this is the caller's
3112 best guess as to the function's entry point. At the time of
3113 this writing, handle_inferior_event doesn't get this right, so
3114 it should be our last resort. */
3116 /* Consult the partial symbol table, to find which function
3118 if (! find_pc_partial_function (pc
, NULL
, &func_addr
, &func_end
))
3120 CORE_ADDR prologue_end
;
3122 /* We don't even have minsym information, so fall back to using
3123 func_start, if given. */
3125 return 1; /* We *might* be in a prologue. */
3127 prologue_end
= SKIP_PROLOGUE (func_start
);
3129 return func_start
<= pc
&& pc
< prologue_end
;
3132 /* If we have line number information for the function, that's
3133 usually pretty reliable. */
3134 sal
= find_pc_line (func_addr
, 0);
3136 /* Now sal describes the source line at the function's entry point,
3137 which (by convention) is the prologue. The end of that "line",
3138 sal.end, is the end of the prologue.
3140 Note that, for functions whose source code is all on a single
3141 line, the line number information doesn't always end up this way.
3142 So we must verify that our purported end-of-prologue address is
3143 *within* the function, not at its start or end. */
3145 || sal
.end
<= func_addr
3146 || func_end
<= sal
.end
)
3148 /* We don't have any good line number info, so use the minsym
3149 information, together with the architecture-specific prologue
3151 CORE_ADDR prologue_end
= SKIP_PROLOGUE (func_addr
);
3153 return func_addr
<= pc
&& pc
< prologue_end
;
3156 /* We have line number info, and it looks good. */
3157 return func_addr
<= pc
&& pc
< sal
.end
;
3161 /* Begin overload resolution functions */
3162 /* Helper routine for make_symbol_completion_list. */
3164 static int sym_return_val_size
;
3165 static int sym_return_val_index
;
3166 static struct symbol
**sym_return_val
;
3168 /* Test to see if the symbol specified by SYMNAME (which is already
3169 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3170 characters. If so, add it to the current completion list. */
3173 overload_list_add_symbol (struct symbol
*sym
, char *oload_name
)
3178 /* Get the demangled name without parameters */
3179 char *sym_name
= cplus_demangle (SYMBOL_NAME (sym
), DMGL_ARM
| DMGL_ANSI
);
3182 sym_name
= (char *) xmalloc (strlen (SYMBOL_NAME (sym
)) + 1);
3183 strcpy (sym_name
, SYMBOL_NAME (sym
));
3186 /* skip symbols that cannot match */
3187 if (strcmp (sym_name
, oload_name
) != 0)
3193 /* If there is no type information, we can't do anything, so skip */
3194 if (SYMBOL_TYPE (sym
) == NULL
)
3197 /* skip any symbols that we've already considered. */
3198 for (i
= 0; i
< sym_return_val_index
; ++i
)
3199 if (!strcmp (SYMBOL_NAME (sym
), SYMBOL_NAME (sym_return_val
[i
])))
3202 /* We have a match for an overload instance, so add SYM to the current list
3203 * of overload instances */
3204 if (sym_return_val_index
+ 3 > sym_return_val_size
)
3206 newsize
= (sym_return_val_size
*= 2) * sizeof (struct symbol
*);
3207 sym_return_val
= (struct symbol
**) xrealloc ((char *) sym_return_val
, newsize
);
3209 sym_return_val
[sym_return_val_index
++] = sym
;
3210 sym_return_val
[sym_return_val_index
] = NULL
;
3215 /* Return a null-terminated list of pointers to function symbols that
3216 * match name of the supplied symbol FSYM.
3217 * This is used in finding all overloaded instances of a function name.
3218 * This has been modified from make_symbol_completion_list. */
3222 make_symbol_overload_list (struct symbol
*fsym
)
3224 register struct symbol
*sym
;
3225 register struct symtab
*s
;
3226 register struct partial_symtab
*ps
;
3227 register struct objfile
*objfile
;
3228 register struct block
*b
, *surrounding_static_block
= 0;
3230 /* The name we are completing on. */
3231 char *oload_name
= NULL
;
3232 /* Length of name. */
3233 int oload_name_len
= 0;
3235 /* Look for the symbol we are supposed to complete on.
3236 * FIXME: This should be language-specific. */
3238 oload_name
= cplus_demangle (SYMBOL_NAME (fsym
), DMGL_ARM
| DMGL_ANSI
);
3241 oload_name
= (char *) xmalloc (strlen (SYMBOL_NAME (fsym
)) + 1);
3242 strcpy (oload_name
, SYMBOL_NAME (fsym
));
3244 oload_name_len
= strlen (oload_name
);
3246 sym_return_val_size
= 100;
3247 sym_return_val_index
= 0;
3248 sym_return_val
= (struct symbol
**) xmalloc ((sym_return_val_size
+ 1) * sizeof (struct symbol
*));
3249 sym_return_val
[0] = NULL
;
3251 /* Look through the partial symtabs for all symbols which begin
3252 by matching OLOAD_NAME. Make sure we read that symbol table in. */
3254 ALL_PSYMTABS (objfile
, ps
)
3256 struct partial_symbol
**psym
;
3258 /* If the psymtab's been read in we'll get it when we search
3259 through the blockvector. */
3263 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
3264 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
3265 + ps
->n_global_syms
);
3268 /* If interrupted, then quit. */
3270 /* This will cause the symbol table to be read if it has not yet been */
3271 s
= PSYMTAB_TO_SYMTAB (ps
);
3274 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
3275 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
3276 + ps
->n_static_syms
);
3280 /* This will cause the symbol table to be read if it has not yet been */
3281 s
= PSYMTAB_TO_SYMTAB (ps
);
3285 /* Search upwards from currently selected frame (so that we can
3286 complete on local vars. */
3288 for (b
= get_selected_block (); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
3290 if (!BLOCK_SUPERBLOCK (b
))
3292 surrounding_static_block
= b
; /* For elimination of dups */
3295 /* Also catch fields of types defined in this places which match our
3296 text string. Only complete on types visible from current context. */
3298 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3300 sym
= BLOCK_SYM (b
, i
);
3301 overload_list_add_symbol (sym
, oload_name
);
3305 /* Go through the symtabs and check the externs and statics for
3306 symbols which match. */
3308 ALL_SYMTABS (objfile
, s
)
3311 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3312 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3314 sym
= BLOCK_SYM (b
, i
);
3315 overload_list_add_symbol (sym
, oload_name
);
3319 ALL_SYMTABS (objfile
, s
)
3322 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3323 /* Don't do this block twice. */
3324 if (b
== surrounding_static_block
)
3326 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3328 sym
= BLOCK_SYM (b
, i
);
3329 overload_list_add_symbol (sym
, oload_name
);
3335 return (sym_return_val
);
3338 /* End of overload resolution functions */
3340 struct symtabs_and_lines
3341 decode_line_spec (char *string
, int funfirstline
)
3343 struct symtabs_and_lines sals
;
3345 error ("Empty line specification.");
3346 sals
= decode_line_1 (&string
, funfirstline
,
3347 current_source_symtab
, current_source_line
,
3350 error ("Junk at end of line specification: %s", string
);
3355 _initialize_symtab (void)
3357 add_info ("variables", variables_info
,
3358 "All global and static variable names, or those matching REGEXP.");
3360 add_com ("whereis", class_info
, variables_info
,
3361 "All global and static variable names, or those matching REGEXP.");
3363 add_info ("functions", functions_info
,
3364 "All function names, or those matching REGEXP.");
3367 /* FIXME: This command has at least the following problems:
3368 1. It prints builtin types (in a very strange and confusing fashion).
3369 2. It doesn't print right, e.g. with
3370 typedef struct foo *FOO
3371 type_print prints "FOO" when we want to make it (in this situation)
3372 print "struct foo *".
3373 I also think "ptype" or "whatis" is more likely to be useful (but if
3374 there is much disagreement "info types" can be fixed). */
3375 add_info ("types", types_info
,
3376 "All type names, or those matching REGEXP.");
3379 add_info ("methods", methods_info
,
3380 "All method names, or those matching REGEXP::REGEXP.\n\
3381 If the class qualifier is omitted, it is assumed to be the current scope.\n\
3382 If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
3385 add_info ("sources", sources_info
,
3386 "Source files in the program.");
3388 add_com ("rbreak", class_breakpoint
, rbreak_command
,
3389 "Set a breakpoint for all functions matching REGEXP.");
3393 add_com ("lf", class_info
, sources_info
, "Source files in the program");
3394 add_com ("lg", class_info
, variables_info
,
3395 "All global and static variable names, or those matching REGEXP.");
3398 /* Initialize the one built-in type that isn't language dependent... */
3399 builtin_type_error
= init_type (TYPE_CODE_ERROR
, 0, 0,
3400 "<unknown type>", (struct objfile
*) NULL
);