1 /* Symbol table lookup for the GNU debugger, GDB.
2 Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 1997
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, Boston, MA 02111-1307, USA. */
31 #include "call-cmds.h"
32 #include "gnu-regex.h"
33 #include "expression.h"
39 #include <sys/types.h>
41 #include "gdb_string.h"
45 /* Prototypes for local functions */
48 find_methods
PARAMS ((struct type
*, char *, struct symbol
**));
51 completion_list_add_name
PARAMS ((char *, char *, int, char *, char *));
54 build_canonical_line_spec
PARAMS ((struct symtab_and_line
*, char *, char ***));
56 static struct symtabs_and_lines
57 decode_line_2
PARAMS ((struct symbol
*[], int, int, char ***));
60 rbreak_command
PARAMS ((char *, int));
63 types_info
PARAMS ((char *, int));
66 functions_info
PARAMS ((char *, int));
69 variables_info
PARAMS ((char *, int));
72 sources_info
PARAMS ((char *, int));
75 list_symbols
PARAMS ((char *, int, int, int));
78 output_source_filename
PARAMS ((char *, int *));
81 operator_chars
PARAMS ((char *, char **));
83 static int find_line_common
PARAMS ((struct linetable
*, int, int *));
85 static struct partial_symbol
*
86 lookup_partial_symbol
PARAMS ((struct partial_symtab
*, const char *,
87 int, namespace_enum
));
89 static struct symtab
*
90 lookup_symtab_1
PARAMS ((char *));
93 cplusplus_hint
PARAMS ((char *));
97 /* The single non-language-specific builtin type */
98 struct type
*builtin_type_error
;
100 /* Block in which the most recently searched-for symbol was found.
101 Might be better to make this a parameter to lookup_symbol and
104 const struct block
*block_found
;
106 char no_symtab_msg
[] = "No symbol table is loaded. Use the \"file\" command.";
108 /* While the C++ support is still in flux, issue a possibly helpful hint on
109 using the new command completion feature on single quoted demangled C++
110 symbols. Remove when loose ends are cleaned up. FIXME -fnf */
113 cplusplus_hint (name
)
116 while (*name
== '\'')
118 printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name
, name
);
119 printf_filtered ("(Note leading single quote.)\n");
122 /* Check for a symtab of a specific name; first in symtabs, then in
123 psymtabs. *If* there is no '/' in the name, a match after a '/'
124 in the symtab filename will also work. */
126 static struct symtab
*
127 lookup_symtab_1 (name
)
130 register struct symtab
*s
;
131 register struct partial_symtab
*ps
;
132 register char *slash
;
133 register struct objfile
*objfile
;
137 /* First, search for an exact match */
139 ALL_SYMTABS (objfile
, s
)
140 if (STREQ (name
, s
->filename
))
143 slash
= strchr (name
, '/');
145 /* Now, search for a matching tail (only if name doesn't have any dirs) */
148 ALL_SYMTABS (objfile
, s
)
150 char *p
= s
-> filename
;
151 char *tail
= strrchr (p
, '/');
160 /* Same search rules as above apply here, but now we look thru the
163 ps
= lookup_partial_symtab (name
);
168 error ("Internal: readin %s pst for `%s' found when no symtab found.",
169 ps
-> filename
, name
);
171 s
= PSYMTAB_TO_SYMTAB (ps
);
176 /* At this point, we have located the psymtab for this file, but
177 the conversion to a symtab has failed. This usually happens
178 when we are looking up an include file. In this case,
179 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
180 been created. So, we need to run through the symtabs again in
181 order to find the file.
182 XXX - This is a crock, and should be fixed inside of the the
183 symbol parsing routines. */
187 /* Lookup the symbol table of a source file named NAME. Try a couple
188 of variations if the first lookup doesn't work. */
194 register struct symtab
*s
;
199 s
= lookup_symtab_1 (name
);
203 /* This screws c-exp.y:yylex if there is both a type "tree" and a symtab
206 /* If name not found as specified, see if adding ".c" helps. */
207 /* Why is this? Is it just a user convenience? (If so, it's pretty
208 questionable in the presence of C++, FORTRAN, etc.). It's not in
211 copy
= (char *) alloca (strlen (name
) + 3);
214 s
= lookup_symtab_1 (copy
);
218 /* We didn't find anything; die. */
222 /* Lookup the partial symbol table of a source file named NAME.
223 *If* there is no '/' in the name, a match after a '/'
224 in the psymtab filename will also work. */
226 struct partial_symtab
*
227 lookup_partial_symtab (name
)
230 register struct partial_symtab
*pst
;
231 register struct objfile
*objfile
;
233 ALL_PSYMTABS (objfile
, pst
)
235 if (STREQ (name
, pst
-> filename
))
241 /* Now, search for a matching tail (only if name doesn't have any dirs) */
243 if (!strchr (name
, '/'))
244 ALL_PSYMTABS (objfile
, pst
)
246 char *p
= pst
-> filename
;
247 char *tail
= strrchr (p
, '/');
259 /* Demangle a GDB method stub type.
260 Note that this function is g++ specific. */
263 gdb_mangle_name (type
, i
, j
)
267 int mangled_name_len
;
269 struct fn_field
*f
= TYPE_FN_FIELDLIST1 (type
, i
);
270 struct fn_field
*method
= &f
[j
];
271 char *field_name
= TYPE_FN_FIELDLIST_NAME (type
, i
);
272 char *physname
= TYPE_FN_FIELD_PHYSNAME (f
, j
);
273 char *newname
= type_name_no_tag (type
);
275 /* Does the form of physname indicate that it is the full mangled name
276 of a constructor (not just the args)? */
277 int is_full_physname_constructor
;
280 int is_destructor
= DESTRUCTOR_PREFIX_P (physname
);
281 /* Need a new type prefix. */
282 char *const_prefix
= method
->is_const
? "C" : "";
283 char *volatile_prefix
= method
->is_volatile
? "V" : "";
285 int len
= (newname
== NULL
? 0 : strlen (newname
));
287 is_full_physname_constructor
=
288 ((physname
[0]=='_' && physname
[1]=='_' &&
289 (isdigit(physname
[2]) || physname
[2]=='Q' || physname
[2]=='t'))
290 || (strncmp(physname
, "__ct", 4) == 0));
293 is_full_physname_constructor
|| (newname
&& STREQ(field_name
, newname
));
296 is_destructor
= (strncmp(physname
, "__dt", 4) == 0);
298 if (is_destructor
|| is_full_physname_constructor
)
300 mangled_name
= (char*) xmalloc(strlen(physname
)+1);
301 strcpy(mangled_name
, physname
);
307 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
308 if (strcmp(buf
, "__") == 0)
311 else if (newname
!= NULL
&& strchr (newname
, '<') != NULL
)
313 /* Template methods are fully mangled. */
314 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
320 sprintf (buf
, "__%s%s%d", const_prefix
, volatile_prefix
, len
);
322 mangled_name_len
= ((is_constructor
? 0 : strlen (field_name
))
327 /* Only needed for GNU-mangled names. ANSI-mangled names
328 work with the normal mechanisms. */
329 if (OPNAME_PREFIX_P (field_name
))
331 const char *opname
= cplus_mangle_opname (field_name
+ 3, 0);
333 error ("No mangling for \"%s\"", field_name
);
334 mangled_name_len
+= strlen (opname
);
335 mangled_name
= (char *)xmalloc (mangled_name_len
);
337 strncpy (mangled_name
, field_name
, 3);
338 mangled_name
[3] = '\0';
339 strcat (mangled_name
, opname
);
343 mangled_name
= (char *)xmalloc (mangled_name_len
);
345 mangled_name
[0] = '\0';
347 strcpy (mangled_name
, field_name
);
349 strcat (mangled_name
, buf
);
350 /* If the class doesn't have a name, i.e. newname NULL, then we just
351 mangle it using 0 for the length of the class. Thus it gets mangled
352 as something starting with `::' rather than `classname::'. */
354 strcat (mangled_name
, newname
);
356 strcat (mangled_name
, physname
);
357 return (mangled_name
);
362 struct symbol
* fixup_symbol_section
PARAMS ((struct symbol
*,
364 struct partial_symbol
* fixup_psymbol_section
PARAMS ((struct partial_symbol
*,
368 /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
370 struct partial_symtab
*
371 find_pc_sect_psymtab (pc
, section
)
375 register struct partial_symtab
*pst
;
376 register struct objfile
*objfile
;
378 ALL_PSYMTABS (objfile
, pst
)
380 if (pc
>= pst
->textlow
&& pc
< pst
->texthigh
)
382 struct minimal_symbol
*msymbol
;
383 struct partial_symtab
*tpst
;
385 /* An objfile that has its functions reordered might have
386 many partial symbol tables containing the PC, but
387 we want the partial symbol table that contains the
388 function containing the PC. */
389 if (!(objfile
->flags
& OBJF_REORDERED
) &&
390 section
== 0) /* can't validate section this way */
393 msymbol
= lookup_minimal_symbol_by_pc_section (pc
, section
);
397 for (tpst
= pst
; tpst
!= NULL
; tpst
= tpst
->next
)
399 if (pc
>= tpst
->textlow
&& pc
< tpst
->texthigh
)
401 struct partial_symbol
*p
;
403 p
= find_pc_sect_psymbol (tpst
, pc
, section
);
405 && SYMBOL_VALUE_ADDRESS(p
)
406 == SYMBOL_VALUE_ADDRESS (msymbol
))
416 /* Find which partial symtab contains PC. Return 0 if none.
417 Backward compatibility, no section */
419 struct partial_symtab
*
423 return find_pc_sect_psymtab (pc
, find_pc_mapped_section (pc
));
426 /* Find which partial symbol within a psymtab matches PC and SECTION.
427 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
429 struct partial_symbol
*
430 find_pc_sect_psymbol (psymtab
, pc
, section
)
431 struct partial_symtab
*psymtab
;
435 struct partial_symbol
*best
= NULL
, *p
, **pp
;
439 psymtab
= find_pc_sect_psymtab (pc
, section
);
443 best_pc
= psymtab
->textlow
- 1;
445 /* Search the global symbols as well as the static symbols, so that
446 find_pc_partial_function doesn't use a minimal symbol and thus
447 cache a bad endaddr. */
448 for (pp
= psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
;
449 (pp
- (psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
)
450 < psymtab
->n_global_syms
);
454 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
455 && SYMBOL_CLASS (p
) == LOC_BLOCK
456 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
457 && SYMBOL_VALUE_ADDRESS (p
) > best_pc
)
459 if (section
) /* match on a specific section */
461 fixup_psymbol_section (p
, psymtab
->objfile
);
462 if (SYMBOL_BFD_SECTION (p
) != section
)
465 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
469 for (pp
= psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
;
470 (pp
- (psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
)
471 < psymtab
->n_static_syms
);
475 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
476 && SYMBOL_CLASS (p
) == LOC_BLOCK
477 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
478 && SYMBOL_VALUE_ADDRESS (p
) > best_pc
)
480 if (section
) /* match on a specific section */
482 fixup_psymbol_section (p
, psymtab
->objfile
);
483 if (SYMBOL_BFD_SECTION (p
) != section
)
486 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
490 if (best_pc
== psymtab
->textlow
- 1)
495 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
496 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
498 struct partial_symbol
*
499 find_pc_psymbol (psymtab
, pc
)
500 struct partial_symtab
*psymtab
;
503 return find_pc_sect_psymbol (psymtab
, pc
, find_pc_mapped_section (pc
));
506 /* Debug symbols usually don't have section information. We need to dig that
507 out of the minimal symbols and stash that in the debug symbol. */
510 fixup_section (ginfo
, objfile
)
511 struct general_symbol_info
*ginfo
;
512 struct objfile
*objfile
;
514 struct minimal_symbol
*msym
;
515 msym
= lookup_minimal_symbol (ginfo
->name
, NULL
, objfile
);
518 ginfo
->bfd_section
= SYMBOL_BFD_SECTION (msym
);
522 fixup_symbol_section (sym
, objfile
)
524 struct objfile
*objfile
;
526 struct minimal_symbol
*msym
;
531 if (SYMBOL_BFD_SECTION (sym
))
534 fixup_section (&sym
->ginfo
, objfile
);
539 struct partial_symbol
*
540 fixup_psymbol_section (psym
, objfile
)
541 struct partial_symbol
*psym
;
542 struct objfile
*objfile
;
544 struct minimal_symbol
*msym
;
549 if (SYMBOL_BFD_SECTION (psym
))
552 fixup_section (&psym
->ginfo
, objfile
);
557 /* Find the definition for a specified symbol name NAME
558 in namespace NAMESPACE, visible from lexical block BLOCK.
559 Returns the struct symbol pointer, or zero if no symbol is found.
560 If SYMTAB is non-NULL, store the symbol table in which the
561 symbol was found there, or NULL if not found.
562 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
563 NAME is a field of the current implied argument `this'. If so set
564 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
565 BLOCK_FOUND is set to the block in which NAME is found (in the case of
566 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
568 /* This function has a bunch of loops in it and it would seem to be
569 attractive to put in some QUIT's (though I'm not really sure
570 whether it can run long enough to be really important). But there
571 are a few calls for which it would appear to be bad news to quit
572 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
573 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
574 code below which can error(), but that probably doesn't affect
575 these calls since they are looking for a known variable and thus
576 can probably assume it will never hit the C++ code). */
579 lookup_symbol (name
, block
, namespace, is_a_field_of_this
, symtab
)
581 register const struct block
*block
;
582 const namespace_enum
namespace;
583 int *is_a_field_of_this
;
584 struct symtab
**symtab
;
586 register struct symbol
*sym
;
587 register struct symtab
*s
= NULL
;
588 register struct partial_symtab
*ps
;
589 struct blockvector
*bv
;
590 register struct objfile
*objfile
= NULL
;
591 register struct block
*b
;
592 register struct minimal_symbol
*msymbol
;
594 /* Search specified block and its superiors. */
598 sym
= lookup_block_symbol (block
, name
, namespace);
604 /* Search the list of symtabs for one which contains the
605 address of the start of this block. */
606 ALL_SYMTABS (objfile
, s
)
608 bv
= BLOCKVECTOR (s
);
609 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
610 if (BLOCK_START (b
) <= BLOCK_START (block
)
611 && BLOCK_END (b
) > BLOCK_START (block
))
618 return fixup_symbol_section (sym
, objfile
);
620 block
= BLOCK_SUPERBLOCK (block
);
623 /* FIXME: this code is never executed--block is always NULL at this
624 point. What is it trying to do, anyway? We already should have
625 checked the STATIC_BLOCK above (it is the superblock of top-level
626 blocks). Why is VAR_NAMESPACE special-cased? */
627 /* Don't need to mess with the psymtabs; if we have a block,
628 that file is read in. If we don't, then we deal later with
629 all the psymtab stuff that needs checking. */
630 if (namespace == VAR_NAMESPACE
&& block
!= NULL
)
633 /* Find the right symtab. */
634 ALL_SYMTABS (objfile
, s
)
636 bv
= BLOCKVECTOR (s
);
637 b
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
638 if (BLOCK_START (b
) <= BLOCK_START (block
)
639 && BLOCK_END (b
) > BLOCK_START (block
))
641 sym
= lookup_block_symbol (b
, name
, VAR_NAMESPACE
);
647 return fixup_symbol_section (sym
, objfile
);
654 /* C++: If requested to do so by the caller,
655 check to see if NAME is a field of `this'. */
656 if (is_a_field_of_this
)
658 struct value
*v
= value_of_this (0);
660 *is_a_field_of_this
= 0;
661 if (v
&& check_field (v
, name
))
663 *is_a_field_of_this
= 1;
670 /* Now search all global blocks. Do the symtab's first, then
671 check the psymtab's */
673 ALL_SYMTABS (objfile
, s
)
675 bv
= BLOCKVECTOR (s
);
676 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
677 sym
= lookup_block_symbol (block
, name
, namespace);
683 return fixup_symbol_section (sym
, objfile
);
687 /* Check for the possibility of the symbol being a function or
688 a mangled variable that is stored in one of the minimal symbol tables.
689 Eventually, all global symbols might be resolved in this way. */
691 if (namespace == VAR_NAMESPACE
)
693 msymbol
= lookup_minimal_symbol (name
, NULL
, NULL
);
696 s
= find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol
),
697 SYMBOL_BFD_SECTION (msymbol
));
700 /* This is a function which has a symtab for its address. */
701 bv
= BLOCKVECTOR (s
);
702 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
703 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
705 /* We kept static functions in minimal symbol table as well as
706 in static scope. We want to find them in the symbol table. */
708 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
709 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
713 /* sym == 0 if symbol was found in the minimal symbol table
714 but not in the symtab.
715 Return 0 to use the msymbol definition of "foo_".
717 This happens for Fortran "foo_" symbols,
718 which are "foo" in the symtab.
720 This can also happen if "asm" is used to make a
721 regular symbol but not a debugging symbol, e.g.
728 return fixup_symbol_section (sym
, objfile
);
730 else if (MSYMBOL_TYPE (msymbol
) != mst_text
731 && MSYMBOL_TYPE (msymbol
) != mst_file_text
732 && !STREQ (name
, SYMBOL_NAME (msymbol
)))
734 /* This is a mangled variable, look it up by its
736 return lookup_symbol (SYMBOL_NAME (msymbol
), block
,
737 namespace, is_a_field_of_this
, symtab
);
739 /* There are no debug symbols for this file, or we are looking
740 for an unmangled variable.
741 Try to find a matching static symbol below. */
745 ALL_PSYMTABS (objfile
, ps
)
747 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 1, namespace))
749 s
= PSYMTAB_TO_SYMTAB(ps
);
750 bv
= BLOCKVECTOR (s
);
751 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
752 sym
= lookup_block_symbol (block
, name
, namespace);
754 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab", name
, ps
->filename
);
757 return fixup_symbol_section (sym
, objfile
);
761 /* Now search all per-file blocks.
762 Not strictly correct, but more useful than an error.
763 Do the symtabs first, then check the psymtabs */
765 ALL_SYMTABS (objfile
, s
)
767 bv
= BLOCKVECTOR (s
);
768 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
769 sym
= lookup_block_symbol (block
, name
, namespace);
775 return fixup_symbol_section (sym
, objfile
);
779 ALL_PSYMTABS (objfile
, ps
)
781 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 0, namespace))
783 s
= PSYMTAB_TO_SYMTAB(ps
);
784 bv
= BLOCKVECTOR (s
);
785 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
786 sym
= lookup_block_symbol (block
, name
, namespace);
788 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab", name
, ps
->filename
);
791 return fixup_symbol_section (sym
, objfile
);
800 /* Look, in partial_symtab PST, for symbol NAME. Check the global
801 symbols if GLOBAL, the static symbols if not */
803 static struct partial_symbol
*
804 lookup_partial_symbol (pst
, name
, global
, namespace)
805 struct partial_symtab
*pst
;
808 namespace_enum
namespace;
810 struct partial_symbol
**start
, **psym
;
811 struct partial_symbol
**top
, **bottom
, **center
;
812 int length
= (global
? pst
->n_global_syms
: pst
->n_static_syms
);
813 int do_linear_search
= 1;
821 pst
->objfile
->global_psymbols
.list
+ pst
->globals_offset
:
822 pst
->objfile
->static_psymbols
.list
+ pst
->statics_offset
);
824 if (global
) /* This means we can use a binary search. */
826 do_linear_search
= 0;
828 /* Binary search. This search is guaranteed to end with center
829 pointing at the earliest partial symbol with the correct
830 name. At that point *all* partial symbols with that name
831 will be checked against the correct namespace. */
834 top
= start
+ length
- 1;
837 center
= bottom
+ (top
- bottom
) / 2;
840 if (!do_linear_search
&& SYMBOL_LANGUAGE (*center
) == language_cplus
)
842 do_linear_search
= 1;
844 if (STRCMP (SYMBOL_NAME (*center
), name
) >= 0)
853 if (!(top
== bottom
))
855 while (STREQ (SYMBOL_NAME (*top
), name
))
857 if (SYMBOL_NAMESPACE (*top
) == namespace)
865 /* Can't use a binary search or else we found during the binary search that
866 we should also do a linear search. */
868 if (do_linear_search
)
870 for (psym
= start
; psym
< start
+ length
; psym
++)
872 if (namespace == SYMBOL_NAMESPACE (*psym
))
874 if (SYMBOL_MATCHES_NAME (*psym
, name
))
885 /* Find the psymtab containing main(). */
886 /* FIXME: What about languages without main() or specially linked
887 executables that have no main() ? */
889 struct partial_symtab
*
892 register struct partial_symtab
*pst
;
893 register struct objfile
*objfile
;
895 ALL_PSYMTABS (objfile
, pst
)
897 if (lookup_partial_symbol (pst
, "main", 1, VAR_NAMESPACE
))
905 /* Search BLOCK for symbol NAME in NAMESPACE.
907 Note that if NAME is the demangled form of a C++ symbol, we will fail
908 to find a match during the binary search of the non-encoded names, but
909 for now we don't worry about the slight inefficiency of looking for
910 a match we'll never find, since it will go pretty quick. Once the
911 binary search terminates, we drop through and do a straight linear
912 search on the symbols. Each symbol which is marked as being a C++
913 symbol (language_cplus set) has both the encoded and non-encoded names
914 tested for a match. */
917 lookup_block_symbol (block
, name
, namespace)
918 register const struct block
*block
;
920 const namespace_enum
namespace;
922 register int bot
, top
, inc
;
923 register struct symbol
*sym
;
924 register struct symbol
*sym_found
= NULL
;
925 register int do_linear_search
= 1;
927 /* If the blocks's symbols were sorted, start with a binary search. */
929 if (BLOCK_SHOULD_SORT (block
))
931 /* Reset the linear search flag so if the binary search fails, we
932 won't do the linear search once unless we find some reason to
933 do so, such as finding a C++ symbol during the binary search.
934 Note that for C++ modules, ALL the symbols in a block should
935 end up marked as C++ symbols. */
937 do_linear_search
= 0;
938 top
= BLOCK_NSYMS (block
);
941 /* Advance BOT to not far before the first symbol whose name is NAME. */
945 inc
= (top
- bot
+ 1);
946 /* No need to keep binary searching for the last few bits worth. */
951 inc
= (inc
>> 1) + bot
;
952 sym
= BLOCK_SYM (block
, inc
);
953 if (!do_linear_search
&& SYMBOL_LANGUAGE (sym
) == language_cplus
)
955 do_linear_search
= 1;
957 if (SYMBOL_NAME (sym
)[0] < name
[0])
961 else if (SYMBOL_NAME (sym
)[0] > name
[0])
965 else if (STRCMP (SYMBOL_NAME (sym
), name
) < 0)
975 /* Now scan forward until we run out of symbols, find one whose
976 name is greater than NAME, or find one we want. If there is
977 more than one symbol with the right name and namespace, we
978 return the first one; I believe it is now impossible for us
979 to encounter two symbols with the same name and namespace
980 here, because blocks containing argument symbols are no
983 top
= BLOCK_NSYMS (block
);
986 sym
= BLOCK_SYM (block
, bot
);
987 inc
= SYMBOL_NAME (sym
)[0] - name
[0];
990 inc
= STRCMP (SYMBOL_NAME (sym
), name
);
992 if (inc
== 0 && SYMBOL_NAMESPACE (sym
) == namespace)
1004 /* Here if block isn't sorted, or we fail to find a match during the
1005 binary search above. If during the binary search above, we find a
1006 symbol which is a C++ symbol, then we have re-enabled the linear
1007 search flag which was reset when starting the binary search.
1009 This loop is equivalent to the loop above, but hacked greatly for speed.
1011 Note that parameter symbols do not always show up last in the
1012 list; this loop makes sure to take anything else other than
1013 parameter symbols first; it only uses parameter symbols as a
1014 last resort. Note that this only takes up extra computation
1017 if (do_linear_search
)
1019 top
= BLOCK_NSYMS (block
);
1023 sym
= BLOCK_SYM (block
, bot
);
1024 if (SYMBOL_NAMESPACE (sym
) == namespace &&
1025 SYMBOL_MATCHES_NAME (sym
, name
))
1028 if (SYMBOL_CLASS (sym
) != LOC_ARG
&&
1029 SYMBOL_CLASS (sym
) != LOC_LOCAL_ARG
&&
1030 SYMBOL_CLASS (sym
) != LOC_REF_ARG
&&
1031 SYMBOL_CLASS (sym
) != LOC_REGPARM
&&
1032 SYMBOL_CLASS (sym
) != LOC_REGPARM_ADDR
&&
1033 SYMBOL_CLASS (sym
) != LOC_BASEREG_ARG
)
1041 return (sym_found
); /* Will be NULL if not found. */
1045 /* Return the symbol for the function which contains a specified
1046 lexical block, described by a struct block BL. */
1052 while (BLOCK_FUNCTION (bl
) == 0 && BLOCK_SUPERBLOCK (bl
) != 0)
1053 bl
= BLOCK_SUPERBLOCK (bl
);
1055 return BLOCK_FUNCTION (bl
);
1058 /* Find the symtab associated with PC and SECTION. Look through the
1059 psymtabs and read in another symtab if necessary. */
1062 find_pc_sect_symtab (pc
, section
)
1066 register struct block
*b
;
1067 struct blockvector
*bv
;
1068 register struct symtab
*s
= NULL
;
1069 register struct symtab
*best_s
= NULL
;
1070 register struct partial_symtab
*ps
;
1071 register struct objfile
*objfile
;
1074 /* Search all symtabs for the one whose file contains our address, and which
1075 is the smallest of all the ones containing the address. This is designed
1076 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1077 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1078 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1080 This happens for native ecoff format, where code from included files
1081 gets its own symtab. The symtab for the included file should have
1082 been read in already via the dependency mechanism.
1083 It might be swifter to create several symtabs with the same name
1084 like xcoff does (I'm not sure).
1086 It also happens for objfiles that have their functions reordered.
1087 For these, the symtab we are looking for is not necessarily read in. */
1089 ALL_SYMTABS (objfile
, s
)
1091 bv
= BLOCKVECTOR (s
);
1092 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1093 if (BLOCK_START (b
) <= pc
1094 && BLOCK_END (b
) > pc
1096 || BLOCK_END (b
) - BLOCK_START (b
) < distance
))
1098 /* For an objfile that has its functions reordered,
1099 find_pc_psymtab will find the proper partial symbol table
1100 and we simply return its corresponding symtab. */
1101 /* In order to better support objfiles that contain both
1102 stabs and coff debugging info, we continue on if a psymtab
1104 if ((objfile
->flags
& OBJF_REORDERED
) && objfile
->psymtabs
)
1106 ps
= find_pc_sect_psymtab (pc
, section
);
1108 return PSYMTAB_TO_SYMTAB (ps
);
1114 for (i
= 0; i
< b
->nsyms
; i
++)
1116 fixup_symbol_section (b
->sym
[i
], objfile
);
1117 if (section
== SYMBOL_BFD_SECTION (b
->sym
[i
]))
1121 continue; /* no symbol in this symtab matches section */
1123 distance
= BLOCK_END (b
) - BLOCK_START (b
);
1132 ps
= find_pc_sect_psymtab (pc
, section
);
1136 /* Might want to error() here (in case symtab is corrupt and
1137 will cause a core dump), but maybe we can successfully
1138 continue, so let's not. */
1139 /* FIXME-32x64: assumes pc fits in a long */
1141 (Internal error: pc 0x%lx in read in psymtab, but not in symtab.)\n",
1142 (unsigned long) pc
);
1143 s
= PSYMTAB_TO_SYMTAB (ps
);
1148 /* Find the symtab associated with PC. Look through the psymtabs and
1149 read in another symtab if necessary. Backward compatibility, no section */
1155 return find_pc_sect_symtab (pc
, find_pc_mapped_section (pc
));
1161 /* Find the closest symbol value (of any sort -- function or variable)
1162 for a given address value. Slow but complete. (currently unused,
1163 mainly because it is too slow. We could fix it if each symtab and
1164 psymtab had contained in it the addresses ranges of each of its
1165 sections, which also would be required to make things like "info
1166 line *0x2345" cause psymtabs to be converted to symtabs). */
1169 find_addr_symbol (addr
, symtabp
, symaddrp
)
1171 struct symtab
**symtabp
;
1172 CORE_ADDR
*symaddrp
;
1174 struct symtab
*symtab
, *best_symtab
;
1175 struct objfile
*objfile
;
1176 register int bot
, top
;
1177 register struct symbol
*sym
;
1178 register CORE_ADDR sym_addr
;
1179 struct block
*block
;
1182 /* Info on best symbol seen so far */
1184 register CORE_ADDR best_sym_addr
= 0;
1185 struct symbol
*best_sym
= 0;
1187 /* FIXME -- we should pull in all the psymtabs, too! */
1188 ALL_SYMTABS (objfile
, symtab
)
1190 /* Search the global and static blocks in this symtab for
1191 the closest symbol-address to the desired address. */
1193 for (blocknum
= GLOBAL_BLOCK
; blocknum
<= STATIC_BLOCK
; blocknum
++)
1196 block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab
), blocknum
);
1197 top
= BLOCK_NSYMS (block
);
1198 for (bot
= 0; bot
< top
; bot
++)
1200 sym
= BLOCK_SYM (block
, bot
);
1201 switch (SYMBOL_CLASS (sym
))
1205 sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
1209 sym_addr
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
1216 if (sym_addr
<= addr
)
1217 if (sym_addr
> best_sym_addr
)
1219 /* Quit if we found an exact match. */
1221 best_sym_addr
= sym_addr
;
1222 best_symtab
= symtab
;
1223 if (sym_addr
== addr
)
1232 *symtabp
= best_symtab
;
1234 *symaddrp
= best_sym_addr
;
1239 /* Find the source file and line number for a given PC value and section.
1240 Return a structure containing a symtab pointer, a line number,
1241 and a pc range for the entire source line.
1242 The value's .pc field is NOT the specified pc.
1243 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1244 use the line that ends there. Otherwise, in that case, the line
1245 that begins there is used. */
1247 /* The big complication here is that a line may start in one file, and end just
1248 before the start of another file. This usually occurs when you #include
1249 code in the middle of a subroutine. To properly find the end of a line's PC
1250 range, we must search all symtabs associated with this compilation unit, and
1251 find the one whose first PC is closer than that of the next line in this
1254 /* If it's worth the effort, we could be using a binary search. */
1256 struct symtab_and_line
1257 find_pc_sect_line (pc
, section
, notcurrent
)
1259 struct sec
*section
;
1263 register struct linetable
*l
;
1266 register struct linetable_entry
*item
;
1267 struct symtab_and_line val
;
1268 struct blockvector
*bv
;
1270 /* Info on best line seen so far, and where it starts, and its file. */
1272 struct linetable_entry
*best
= NULL
;
1273 CORE_ADDR best_end
= 0;
1274 struct symtab
*best_symtab
= 0;
1276 /* Store here the first line number
1277 of a file which contains the line at the smallest pc after PC.
1278 If we don't find a line whose range contains PC,
1279 we will use a line one less than this,
1280 with a range from the start of that file to the first line's pc. */
1281 struct linetable_entry
*alt
= NULL
;
1282 struct symtab
*alt_symtab
= 0;
1284 /* Info on best line seen in this file. */
1286 struct linetable_entry
*prev
;
1288 /* If this pc is not from the current frame,
1289 it is the address of the end of a call instruction.
1290 Quite likely that is the start of the following statement.
1291 But what we want is the statement containing the instruction.
1292 Fudge the pc to make sure we get that. */
1294 INIT_SAL (&val
); /* initialize to zeroes */
1299 s
= find_pc_sect_symtab (pc
, section
);
1306 bv
= BLOCKVECTOR (s
);
1308 /* Look at all the symtabs that share this blockvector.
1309 They all have the same apriori range, that we found was right;
1310 but they have different line tables. */
1312 for (; s
&& BLOCKVECTOR (s
) == bv
; s
= s
->next
)
1314 /* Find the best line in this symtab. */
1321 /* I think len can be zero if the symtab lacks line numbers
1322 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1323 I'm not sure which, and maybe it depends on the symbol
1329 item
= l
->item
; /* Get first line info */
1331 /* Is this file's first line closer than the first lines of other files?
1332 If so, record this file, and its first line, as best alternate. */
1333 if (item
->pc
> pc
&& (!alt
|| item
->pc
< alt
->pc
))
1339 for (i
= 0; i
< len
; i
++, item
++)
1341 /* Leave prev pointing to the linetable entry for the last line
1342 that started at or before PC. */
1349 /* At this point, prev points at the line whose start addr is <= pc, and
1350 item points at the next line. If we ran off the end of the linetable
1351 (pc >= start of the last line), then prev == item. If pc < start of
1352 the first line, prev will not be set. */
1354 /* Is this file's best line closer than the best in the other files?
1355 If so, record this file, and its best line, as best so far. */
1357 if (prev
&& (!best
|| prev
->pc
> best
->pc
))
1361 /* If another line is in the linetable, and its PC is closer
1362 than the best_end we currently have, take it as best_end. */
1363 if (i
< len
&& (best_end
== 0 || best_end
> item
->pc
))
1364 best_end
= item
->pc
;
1371 { /* If we didn't find any line # info, just
1377 val
.symtab
= alt_symtab
;
1378 val
.line
= alt
->line
- 1;
1380 /* Don't return line 0, that means that we didn't find the line. */
1381 if (val
.line
== 0) ++val
.line
;
1383 val
.pc
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1389 val
.symtab
= best_symtab
;
1390 val
.line
= best
->line
;
1392 if (best_end
&& (!alt
|| best_end
< alt
->pc
))
1397 val
.end
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1399 val
.section
= section
;
1403 /* Backward compatibility (no section) */
1405 struct symtab_and_line
1406 find_pc_line (pc
, notcurrent
)
1412 section
= find_pc_overlay (pc
);
1413 if (pc_in_unmapped_range (pc
, section
))
1414 pc
= overlay_mapped_address (pc
, section
);
1415 return find_pc_sect_line (pc
, section
, notcurrent
);
1419 static int find_line_symtab
PARAMS ((struct symtab
*, int, struct linetable
**,
1422 /* Find line number LINE in any symtab whose name is the same as
1425 If found, return 1, set *LINETABLE to the linetable in which it was
1426 found, set *INDEX to the index in the linetable of the best entry
1427 found, and set *EXACT_MATCH nonzero if the value returned is an
1430 If not found, return 0. */
1433 find_line_symtab (symtab
, line
, linetable
, index
, exact_match
)
1434 struct symtab
*symtab
;
1436 struct linetable
**linetable
;
1442 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1446 struct linetable
*best_linetable
;
1448 /* First try looking it up in the given symtab. */
1449 best_linetable
= LINETABLE (symtab
);
1450 best_index
= find_line_common (best_linetable
, line
, &exact
);
1451 if (best_index
< 0 || !exact
)
1453 /* Didn't find an exact match. So we better keep looking for
1454 another symtab with the same name. In the case of xcoff,
1455 multiple csects for one source file (produced by IBM's FORTRAN
1456 compiler) produce multiple symtabs (this is unavoidable
1457 assuming csects can be at arbitrary places in memory and that
1458 the GLOBAL_BLOCK of a symtab has a begin and end address). */
1460 /* BEST is the smallest linenumber > LINE so far seen,
1461 or 0 if none has been seen so far.
1462 BEST_INDEX and BEST_LINETABLE identify the item for it. */
1465 struct objfile
*objfile
;
1468 if (best_index
>= 0)
1469 best
= best_linetable
->item
[best_index
].line
;
1473 ALL_SYMTABS (objfile
, s
)
1475 struct linetable
*l
;
1478 if (!STREQ (symtab
->filename
, s
->filename
))
1481 ind
= find_line_common (l
, line
, &exact
);
1490 if (best
== 0 || l
->item
[ind
].line
< best
)
1492 best
= l
->item
[ind
].line
;
1504 *index
= best_index
;
1506 *linetable
= best_linetable
;
1508 *exact_match
= exact
;
1512 /* Find the PC value for a given source file and line number.
1513 Returns zero for invalid line number.
1514 The source file is specified with a struct symtab. */
1517 find_line_pc (symtab
, line
)
1518 struct symtab
*symtab
;
1521 struct linetable
*l
;
1526 if (find_line_symtab (symtab
, line
, &l
, &ind
, NULL
))
1527 return l
->item
[ind
].pc
;
1532 /* Find the range of pc values in a line.
1533 Store the starting pc of the line into *STARTPTR
1534 and the ending pc (start of next line) into *ENDPTR.
1535 Returns 1 to indicate success.
1536 Returns 0 if could not find the specified line. */
1539 find_line_pc_range (sal
, startptr
, endptr
)
1540 struct symtab_and_line sal
;
1541 CORE_ADDR
*startptr
, *endptr
;
1543 CORE_ADDR startaddr
;
1544 struct symtab_and_line found_sal
;
1549 startaddr
= find_line_pc (sal
.symtab
, sal
.line
);
1554 /* This whole function is based on address. For example, if line 10 has
1555 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
1556 "info line *0x123" should say the line goes from 0x100 to 0x200
1557 and "info line *0x355" should say the line goes from 0x300 to 0x400.
1558 This also insures that we never give a range like "starts at 0x134
1559 and ends at 0x12c". */
1561 found_sal
= find_pc_sect_line (startaddr
, sal
.section
, 0);
1562 if (found_sal
.line
!= sal
.line
)
1564 /* The specified line (sal) has zero bytes. */
1565 *startptr
= found_sal
.pc
;
1566 *endptr
= found_sal
.pc
;
1570 *startptr
= found_sal
.pc
;
1571 *endptr
= found_sal
.end
;
1576 /* Given a line table and a line number, return the index into the line
1577 table for the pc of the nearest line whose number is >= the specified one.
1578 Return -1 if none is found. The value is >= 0 if it is an index.
1580 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
1583 find_line_common (l
, lineno
, exact_match
)
1584 register struct linetable
*l
;
1585 register int lineno
;
1591 /* BEST is the smallest linenumber > LINENO so far seen,
1592 or 0 if none has been seen so far.
1593 BEST_INDEX identifies the item for it. */
1595 int best_index
= -1;
1604 for (i
= 0; i
< len
; i
++)
1606 register struct linetable_entry
*item
= &(l
->item
[i
]);
1608 if (item
->line
== lineno
)
1610 /* Return the first (lowest address) entry which matches. */
1615 if (item
->line
> lineno
&& (best
== 0 || item
->line
< best
))
1622 /* If we got here, we didn't get an exact match. */
1629 find_pc_line_pc_range (pc
, startptr
, endptr
)
1631 CORE_ADDR
*startptr
, *endptr
;
1633 struct symtab_and_line sal
;
1634 sal
= find_pc_line (pc
, 0);
1637 return sal
.symtab
!= 0;
1640 /* Given a function symbol SYM, find the symtab and line for the start
1642 If the argument FUNFIRSTLINE is nonzero, we want the first line
1643 of real code inside the function. */
1645 static struct symtab_and_line
1646 find_function_start_sal
PARAMS ((struct symbol
*sym
, int));
1648 static struct symtab_and_line
1649 find_function_start_sal (sym
, funfirstline
)
1654 struct symtab_and_line sal
;
1656 pc
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
1657 fixup_symbol_section (sym
, NULL
);
1659 { /* skip "first line" of function (which is actually its prologue) */
1660 asection
*section
= SYMBOL_BFD_SECTION (sym
);
1661 /* If function is in an unmapped overlay, use its unmapped LMA
1662 address, so that SKIP_PROLOGUE has something unique to work on */
1663 if (section_is_overlay (section
) &&
1664 !section_is_mapped (section
))
1665 pc
= overlay_unmapped_address (pc
, section
);
1667 pc
+= FUNCTION_START_OFFSET
;
1670 /* For overlays, map pc back into its mapped VMA range */
1671 pc
= overlay_mapped_address (pc
, section
);
1673 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
1675 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
1676 /* Convex: no need to suppress code on first line, if any */
1679 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
1680 line is still part of the same function. */
1682 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym
)) <= sal
.end
1683 && sal
.end
< BLOCK_END (SYMBOL_BLOCK_VALUE (sym
)))
1685 /* First pc of next line */
1687 /* Recalculate the line number (might not be N+1). */
1688 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
1696 /* If P is of the form "operator[ \t]+..." where `...' is
1697 some legitimate operator text, return a pointer to the
1698 beginning of the substring of the operator text.
1699 Otherwise, return "". */
1701 operator_chars (p
, end
)
1706 if (strncmp (p
, "operator", 8))
1710 /* Don't get faked out by `operator' being part of a longer
1712 if (isalpha(*p
) || *p
== '_' || *p
== '$' || *p
== '\0')
1715 /* Allow some whitespace between `operator' and the operator symbol. */
1716 while (*p
== ' ' || *p
== '\t')
1719 /* Recognize 'operator TYPENAME'. */
1721 if (isalpha(*p
) || *p
== '_' || *p
== '$')
1723 register char *q
= p
+1;
1724 while (isalnum(*q
) || *q
== '_' || *q
== '$')
1749 if (p
[1] == '=' || p
[1] == p
[0])
1760 error ("`operator ()' must be specified without whitespace in `()'");
1765 error ("`operator ?:' must be specified without whitespace in `?:'");
1770 error ("`operator []' must be specified without whitespace in `[]'");
1774 error ("`operator %s' not supported", p
);
1781 /* Return the number of methods described for TYPE, including the
1782 methods from types it derives from. This can't be done in the symbol
1783 reader because the type of the baseclass might still be stubbed
1784 when the definition of the derived class is parsed. */
1786 static int total_number_of_methods
PARAMS ((struct type
*type
));
1789 total_number_of_methods (type
)
1795 CHECK_TYPEDEF (type
);
1796 if (TYPE_CPLUS_SPECIFIC (type
) == NULL
)
1798 count
= TYPE_NFN_FIELDS_TOTAL (type
);
1800 for (n
= 0; n
< TYPE_N_BASECLASSES (type
); n
++)
1801 count
+= total_number_of_methods (TYPE_BASECLASS (type
, n
));
1806 /* Recursive helper function for decode_line_1.
1807 Look for methods named NAME in type T.
1808 Return number of matches.
1809 Put matches in SYM_ARR, which should have been allocated with
1810 a size of total_number_of_methods (T) * sizeof (struct symbol *).
1811 Note that this function is g++ specific. */
1814 find_methods (t
, name
, sym_arr
)
1817 struct symbol
**sym_arr
;
1821 struct symbol
*sym_class
;
1822 char *class_name
= type_name_no_tag (t
);
1823 /* Ignore this class if it doesn't have a name. This is ugly, but
1824 unless we figure out how to get the physname without the name of
1825 the class, then the loop can't do any good. */
1827 && (sym_class
= lookup_symbol (class_name
,
1828 (struct block
*)NULL
,
1831 (struct symtab
**)NULL
)))
1834 /* FIXME: Shouldn't this just be CHECK_TYPEDEF (t)? */
1835 t
= SYMBOL_TYPE (sym_class
);
1836 for (method_counter
= TYPE_NFN_FIELDS (t
) - 1;
1837 method_counter
>= 0;
1841 struct fn_field
*f
= TYPE_FN_FIELDLIST1 (t
, method_counter
);
1842 char *method_name
= TYPE_FN_FIELDLIST_NAME (t
, method_counter
);
1843 char dem_opname
[64];
1845 if (strncmp(method_name
, "__", 2)==0 ||
1846 strncmp(method_name
, "op", 2)==0 ||
1847 strncmp(method_name
, "type", 4)==0 )
1849 if (cplus_demangle_opname(method_name
, dem_opname
, DMGL_ANSI
))
1850 method_name
= dem_opname
;
1851 else if (cplus_demangle_opname(method_name
, dem_opname
, 0))
1852 method_name
= dem_opname
;
1854 if (STREQ (name
, method_name
))
1855 /* Find all the fields with that name. */
1856 for (field_counter
= TYPE_FN_FIELDLIST_LENGTH (t
, method_counter
) - 1;
1861 if (TYPE_FN_FIELD_STUB (f
, field_counter
))
1862 check_stub_method (t
, method_counter
, field_counter
);
1863 phys_name
= TYPE_FN_FIELD_PHYSNAME (f
, field_counter
);
1864 /* Destructor is handled by caller, dont add it to the list */
1865 if (DESTRUCTOR_PREFIX_P (phys_name
))
1868 sym_arr
[i1
] = lookup_symbol (phys_name
,
1869 NULL
, VAR_NAMESPACE
,
1871 (struct symtab
**) NULL
);
1876 fputs_filtered("(Cannot find method ", gdb_stdout
);
1877 fprintf_symbol_filtered (gdb_stdout
, phys_name
,
1879 DMGL_PARAMS
| DMGL_ANSI
);
1880 fputs_filtered(" - possibly inlined.)\n", gdb_stdout
);
1886 /* Only search baseclasses if there is no match yet, since names in
1887 derived classes override those in baseclasses.
1889 FIXME: The above is not true; it is only true of member functions
1890 if they have the same number of arguments (??? - section 13.1 of the
1891 ARM says the function members are not in the same scope but doesn't
1892 really spell out the rules in a way I understand. In any case, if
1893 the number of arguments differ this is a case in which we can overload
1894 rather than hiding without any problem, and gcc 2.4.5 does overload
1895 rather than hiding in this case). */
1899 for (ibase
= 0; ibase
< TYPE_N_BASECLASSES (t
); ibase
++)
1900 i1
+= find_methods(TYPE_BASECLASS(t
, ibase
), name
,
1905 /* Helper function for decode_line_1.
1906 Build a canonical line spec in CANONICAL if it is non-NULL and if
1907 the SAL has a symtab.
1908 If SYMNAME is non-NULL the canonical line spec is `filename:symname'.
1909 If SYMNAME is NULL the line number from SAL is used and the canonical
1910 line spec is `filename:linenum'. */
1913 build_canonical_line_spec (sal
, symname
, canonical
)
1914 struct symtab_and_line
*sal
;
1918 char **canonical_arr
;
1919 char *canonical_name
;
1921 struct symtab
*s
= sal
->symtab
;
1923 if (s
== (struct symtab
*)NULL
1924 || s
->filename
== (char *)NULL
1925 || canonical
== (char ***)NULL
)
1928 canonical_arr
= (char **) xmalloc (sizeof (char *));
1929 *canonical
= canonical_arr
;
1931 filename
= s
->filename
;
1932 if (symname
!= NULL
)
1934 canonical_name
= xmalloc (strlen (filename
) + strlen (symname
) + 2);
1935 sprintf (canonical_name
, "%s:%s", filename
, symname
);
1939 canonical_name
= xmalloc (strlen (filename
) + 30);
1940 sprintf (canonical_name
, "%s:%d", filename
, sal
->line
);
1942 canonical_arr
[0] = canonical_name
;
1945 /* Parse a string that specifies a line number.
1946 Pass the address of a char * variable; that variable will be
1947 advanced over the characters actually parsed.
1951 LINENUM -- that line number in current file. PC returned is 0.
1952 FILE:LINENUM -- that line in that file. PC returned is 0.
1953 FUNCTION -- line number of openbrace of that function.
1954 PC returned is the start of the function.
1955 VARIABLE -- line number of definition of that variable.
1957 FILE:FUNCTION -- likewise, but prefer functions in that file.
1958 *EXPR -- line in which address EXPR appears.
1960 FUNCTION may be an undebuggable function found in minimal symbol table.
1962 If the argument FUNFIRSTLINE is nonzero, we want the first line
1963 of real code inside a function when a function is specified, and it is
1964 not OK to specify a variable or type to get its line number.
1966 DEFAULT_SYMTAB specifies the file to use if none is specified.
1967 It defaults to current_source_symtab.
1968 DEFAULT_LINE specifies the line number to use for relative
1969 line numbers (that start with signs). Defaults to current_source_line.
1970 If CANONICAL is non-NULL, store an array of strings containing the canonical
1971 line specs there if necessary. Currently overloaded member functions and
1972 line numbers or static functions without a filename yield a canonical
1973 line spec. The array and the line spec strings are allocated on the heap,
1974 it is the callers responsibility to free them.
1976 Note that it is possible to return zero for the symtab
1977 if no file is validly specified. Callers must check that.
1978 Also, the line number returned may be invalid. */
1980 /* We allow single quotes in various places. This is a hideous
1981 kludge, which exists because the completer can't yet deal with the
1982 lack of single quotes. FIXME: write a linespec_completer which we
1983 can use as appropriate instead of make_symbol_completion_list. */
1985 struct symtabs_and_lines
1986 decode_line_1 (argptr
, funfirstline
, default_symtab
, default_line
, canonical
)
1989 struct symtab
*default_symtab
;
1993 struct symtabs_and_lines values
;
1994 #ifdef HPPA_COMPILER_BUG
1995 /* FIXME: The native HP 9000/700 compiler has a bug which appears
1996 when optimizing this file with target i960-vxworks. I haven't
1997 been able to construct a simple test case. The problem is that
1998 in the second call to SKIP_PROLOGUE below, the compiler somehow
1999 does not realize that the statement val = find_pc_line (...) will
2000 change the values of the fields of val. It extracts the elements
2001 into registers at the top of the block, and does not update the
2002 registers after the call to find_pc_line. You can check this by
2003 inserting a printf at the end of find_pc_line to show what values
2004 it is returning for val.pc and val.end and another printf after
2005 the call to see what values the function actually got (remember,
2006 this is compiling with cc -O, with this patch removed). You can
2007 also examine the assembly listing: search for the second call to
2008 skip_prologue; the LDO statement before the next call to
2009 find_pc_line loads the address of the structure which
2010 find_pc_line will return; if there is a LDW just before the LDO,
2011 which fetches an element of the structure, then the compiler
2014 Setting val to volatile avoids the problem. We must undef
2015 volatile, because the HPPA native compiler does not define
2016 __STDC__, although it does understand volatile, and so volatile
2017 will have been defined away in defs.h. */
2019 volatile struct symtab_and_line val
;
2020 #define volatile /*nothing*/
2022 struct symtab_and_line val
;
2024 register char *p
, *p1
;
2029 register struct symtab
*s
;
2031 register struct symbol
*sym
;
2032 /* The symtab that SYM was found in. */
2033 struct symtab
*sym_symtab
;
2035 register CORE_ADDR pc
;
2036 register struct minimal_symbol
*msymbol
;
2038 struct symbol
*sym_class
;
2040 int is_quoted
, has_parens
;
2041 struct symbol
**sym_arr
;
2043 char *saved_arg
= *argptr
;
2044 extern char *gdb_completer_quote_characters
;
2046 INIT_SAL (&val
); /* initialize to zeroes */
2048 /* Defaults have defaults. */
2050 if (default_symtab
== 0)
2052 default_symtab
= current_source_symtab
;
2053 default_line
= current_source_line
;
2056 /* See if arg is *PC */
2058 if (**argptr
== '*')
2061 pc
= parse_and_eval_address_1 (argptr
);
2062 values
.sals
= (struct symtab_and_line
*)
2063 xmalloc (sizeof (struct symtab_and_line
));
2065 values
.sals
[0] = find_pc_line (pc
, 0);
2069 /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
2072 is_quoted
= (**argptr
2073 && strchr (gdb_completer_quote_characters
, **argptr
) != NULL
);
2074 has_parens
= ((pp
= strchr (*argptr
, '(')) != NULL
2075 && (pp
= strchr (pp
, ')')) != NULL
);
2077 for (p
= *argptr
; *p
; p
++)
2081 while(++p
&& *p
!= '>');
2084 error ("non-matching '<' and '>' in command");
2087 if (p
[0] == ':' || p
[0] == ' ' || p
[0] == '\t')
2090 while (p
[0] == ' ' || p
[0] == '\t') p
++;
2092 if ((p
[0] == ':') && !has_parens
)
2096 if (is_quoted
) *argptr
= *argptr
+1;
2099 /* Extract the class name. */
2101 while (p
!= *argptr
&& p
[-1] == ' ') --p
;
2102 copy
= (char *) alloca (p
- *argptr
+ 1);
2103 memcpy (copy
, *argptr
, p
- *argptr
);
2104 copy
[p
- *argptr
] = 0;
2106 /* Discard the class name from the arg. */
2108 while (*p
== ' ' || *p
== '\t') p
++;
2111 sym_class
= lookup_symbol (copy
, 0, STRUCT_NAMESPACE
, 0,
2112 (struct symtab
**)NULL
);
2115 (t
= check_typedef (SYMBOL_TYPE (sym_class
)),
2116 (TYPE_CODE (t
) == TYPE_CODE_STRUCT
2117 || TYPE_CODE (t
) == TYPE_CODE_UNION
)))
2119 /* Arg token is not digits => try it as a function name
2120 Find the next token(everything up to end or next blank). */
2122 && strchr (gdb_completer_quote_characters
, **argptr
) != NULL
)
2124 p
= skip_quoted(*argptr
);
2125 *argptr
= *argptr
+ 1;
2130 while (*p
&& *p
!=' ' && *p
!='\t' && *p
!=',' && *p
!=':') p
++;
2133 q = operator_chars (*argptr, &q1);
2137 char *tmp = alloca (q1 - q + 1);
2138 memcpy (tmp, q, q1 - q);
2140 opname = cplus_mangle_opname (tmp, DMGL_ANSI);
2144 printf_filtered ("no mangling for \"%s\"\n", tmp);
2145 cplusplus_hint (saved_arg);
2146 return_to_top_level (RETURN_ERROR);
2148 copy = (char*) alloca (3 + strlen(opname));
2149 sprintf (copy, "__%s", opname);
2155 copy
= (char *) alloca (p
- *argptr
+ 1 );
2156 memcpy (copy
, *argptr
, p
- *argptr
);
2157 copy
[p
- *argptr
] = '\0';
2159 && copy
[p
- *argptr
- 1]
2160 && strchr (gdb_completer_quote_characters
,
2161 copy
[p
- *argptr
- 1]) != NULL
)
2162 copy
[p
- *argptr
- 1] = '\0';
2165 /* no line number may be specified */
2166 while (*p
== ' ' || *p
== '\t') p
++;
2170 i1
= 0; /* counter for the symbol array */
2171 sym_arr
= (struct symbol
**) alloca(total_number_of_methods (t
)
2172 * sizeof(struct symbol
*));
2174 if (destructor_name_p (copy
, t
))
2176 /* Destructors are a special case. */
2177 int m_index
, f_index
;
2179 if (get_destructor_fn_field (t
, &m_index
, &f_index
))
2181 struct fn_field
*f
= TYPE_FN_FIELDLIST1 (t
, m_index
);
2184 lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f
, f_index
),
2185 NULL
, VAR_NAMESPACE
, (int *) NULL
,
2186 (struct symtab
**)NULL
);
2192 i1
= find_methods (t
, copy
, sym_arr
);
2195 /* There is exactly one field with that name. */
2198 if (sym
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
)
2200 values
.sals
= (struct symtab_and_line
*)
2201 xmalloc (sizeof (struct symtab_and_line
));
2203 values
.sals
[0] = find_function_start_sal (sym
,
2214 /* There is more than one field with that name
2215 (overloaded). Ask the user which one to use. */
2216 return decode_line_2 (sym_arr
, i1
, funfirstline
, canonical
);
2222 if (OPNAME_PREFIX_P (copy
))
2224 tmp
= (char *)alloca (strlen (copy
+3) + 9);
2225 strcpy (tmp
, "operator ");
2226 strcat (tmp
, copy
+3);
2233 ("the class `%s' does not have destructor defined\n",
2234 SYMBOL_SOURCE_NAME(sym_class
));
2237 ("the class %s does not have any method named %s\n",
2238 SYMBOL_SOURCE_NAME(sym_class
), tmp
);
2239 cplusplus_hint (saved_arg
);
2240 return_to_top_level (RETURN_ERROR
);
2246 /* The quotes are important if copy is empty. */
2248 ("can't find class, struct, or union named \"%s\"\n", copy
);
2249 cplusplus_hint (saved_arg
);
2250 return_to_top_level (RETURN_ERROR
);
2256 /* Extract the file name. */
2258 while (p
!= *argptr
&& p
[-1] == ' ') --p
;
2259 copy
= (char *) alloca (p
- *argptr
+ 1);
2260 memcpy (copy
, *argptr
, p
- *argptr
);
2261 copy
[p
- *argptr
] = 0;
2263 /* Find that file's data. */
2264 s
= lookup_symtab (copy
);
2267 if (!have_full_symbols () && !have_partial_symbols ())
2268 error (no_symtab_msg
);
2269 error ("No source file named %s.", copy
);
2272 /* Discard the file name from the arg. */
2274 while (*p
== ' ' || *p
== '\t') p
++;
2278 /* S is specified file's symtab, or 0 if no file specified.
2279 arg no longer contains the file name. */
2281 /* Check whether arg is all digits (and sign) */
2284 if (*q
== '-' || *q
== '+') q
++;
2285 while (*q
>= '0' && *q
<= '9')
2288 if (q
!= *argptr
&& (*q
== 0 || *q
== ' ' || *q
== '\t' || *q
== ','))
2290 /* We found a token consisting of all digits -- at least one digit. */
2291 enum sign
{none
, plus
, minus
} sign
= none
;
2293 /* We might need a canonical line spec if no file was specified. */
2294 int need_canonical
= (s
== 0) ? 1 : 0;
2296 /* This is where we need to make sure that we have good defaults.
2297 We must guarantee that this section of code is never executed
2298 when we are called with just a function name, since
2299 select_source_symtab calls us with such an argument */
2301 if (s
== 0 && default_symtab
== 0)
2303 select_source_symtab (0);
2304 default_symtab
= current_source_symtab
;
2305 default_line
= current_source_line
;
2308 if (**argptr
== '+')
2309 sign
= plus
, (*argptr
)++;
2310 else if (**argptr
== '-')
2311 sign
= minus
, (*argptr
)++;
2312 val
.line
= atoi (*argptr
);
2319 val
.line
= default_line
+ val
.line
;
2325 val
.line
= default_line
- val
.line
;
2330 break; /* No need to adjust val.line. */
2333 while (*q
== ' ' || *q
== '\t') q
++;
2339 values
.sals
= (struct symtab_and_line
*)
2340 xmalloc (sizeof (struct symtab_and_line
));
2341 values
.sals
[0] = val
;
2344 build_canonical_line_spec (values
.sals
, NULL
, canonical
);
2348 /* Arg token is not digits => try it as a variable name
2349 Find the next token (everything up to end or next whitespace). */
2351 if (**argptr
== '$') /* Convenience variable */
2352 p
= skip_quoted (*argptr
+ 1);
2355 p
= skip_quoted (*argptr
);
2357 error ("Unmatched single quote.");
2359 else if (has_parens
)
2365 p
= skip_quoted(*argptr
);
2368 copy
= (char *) alloca (p
- *argptr
+ 1);
2369 memcpy (copy
, *argptr
, p
- *argptr
);
2370 copy
[p
- *argptr
] = '\0';
2373 && copy
[0] == copy
[p
- *argptr
- 1]
2374 && strchr (gdb_completer_quote_characters
, copy
[0]) != NULL
)
2376 copy
[p
- *argptr
- 1] = '\0';
2379 while (*p
== ' ' || *p
== '\t') p
++;
2382 /* See if it's a convenience variable */
2387 int need_canonical
= (s
== 0) ? 1 : 0;
2389 valx
= value_of_internalvar (lookup_internalvar (copy
+ 1));
2390 if (TYPE_CODE (VALUE_TYPE (valx
)) != TYPE_CODE_INT
)
2391 error ("Convenience variables used in line specs must have integer values.");
2393 val
.symtab
= s
? s
: default_symtab
;
2394 val
.line
= value_as_long (valx
);
2397 values
.sals
= (struct symtab_and_line
*)xmalloc (sizeof val
);
2398 values
.sals
[0] = val
;
2402 build_canonical_line_spec (values
.sals
, NULL
, canonical
);
2408 /* Look up that token as a variable.
2409 If file specified, use that file's per-file block to start with. */
2411 sym
= lookup_symbol (copy
,
2412 (s
? BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
)
2413 : get_selected_block ()),
2414 VAR_NAMESPACE
, 0, &sym_symtab
);
2418 if (SYMBOL_CLASS (sym
) == LOC_BLOCK
)
2420 /* Arg is the name of a function */
2421 values
.sals
= (struct symtab_and_line
*)
2422 xmalloc (sizeof (struct symtab_and_line
));
2423 values
.sals
[0] = find_function_start_sal (sym
, funfirstline
);
2426 /* Don't use the SYMBOL_LINE; if used at all it points to
2427 the line containing the parameters or thereabouts, not
2428 the first line of code. */
2430 /* We might need a canonical line spec if it is a static
2434 struct blockvector
*bv
= BLOCKVECTOR (sym_symtab
);
2435 struct block
*b
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
2436 if (lookup_block_symbol (b
, copy
, VAR_NAMESPACE
) != NULL
)
2437 build_canonical_line_spec (values
.sals
, copy
, canonical
);
2444 error ("\"%s\" is not a function", copy
);
2445 else if (SYMBOL_LINE (sym
) != 0)
2447 /* We know its line number. */
2448 values
.sals
= (struct symtab_and_line
*)
2449 xmalloc (sizeof (struct symtab_and_line
));
2451 memset (&values
.sals
[0], 0, sizeof (values
.sals
[0]));
2452 values
.sals
[0].symtab
= sym_symtab
;
2453 values
.sals
[0].line
= SYMBOL_LINE (sym
);
2457 /* This can happen if it is compiled with a compiler which doesn't
2458 put out line numbers for variables. */
2459 /* FIXME: Shouldn't we just set .line and .symtab to zero
2460 and return? For example, "info line foo" could print
2462 error ("Line number not known for symbol \"%s\"", copy
);
2466 msymbol
= lookup_minimal_symbol (copy
, NULL
, NULL
);
2467 if (msymbol
!= NULL
)
2469 val
.pc
= SYMBOL_VALUE_ADDRESS (msymbol
);
2470 val
.section
= SYMBOL_BFD_SECTION (msymbol
);
2473 val
.pc
+= FUNCTION_START_OFFSET
;
2474 SKIP_PROLOGUE (val
.pc
);
2476 values
.sals
= (struct symtab_and_line
*)
2477 xmalloc (sizeof (struct symtab_and_line
));
2478 values
.sals
[0] = val
;
2483 if (!have_full_symbols () &&
2484 !have_partial_symbols () && !have_minimal_symbols ())
2485 error (no_symtab_msg
);
2487 error ("Function \"%s\" not defined.", copy
);
2488 return values
; /* for lint */
2491 struct symtabs_and_lines
2492 decode_line_spec (string
, funfirstline
)
2496 struct symtabs_and_lines sals
;
2498 error ("Empty line specification.");
2499 sals
= decode_line_1 (&string
, funfirstline
,
2500 current_source_symtab
, current_source_line
,
2503 error ("Junk at end of line specification: %s", string
);
2507 /* Given a list of NELTS symbols in SYM_ARR, return a list of lines to
2508 operate on (ask user if necessary).
2509 If CANONICAL is non-NULL return a corresponding array of mangled names
2510 as canonical line specs there. */
2512 static struct symtabs_and_lines
2513 decode_line_2 (sym_arr
, nelts
, funfirstline
, canonical
)
2514 struct symbol
*sym_arr
[];
2519 struct symtabs_and_lines values
, return_values
;
2524 struct cleanup
*old_chain
;
2525 char **canonical_arr
= (char **)NULL
;
2527 values
.sals
= (struct symtab_and_line
*)
2528 alloca (nelts
* sizeof(struct symtab_and_line
));
2529 return_values
.sals
= (struct symtab_and_line
*)
2530 xmalloc (nelts
* sizeof(struct symtab_and_line
));
2531 old_chain
= make_cleanup (free
, return_values
.sals
);
2535 canonical_arr
= (char **) xmalloc (nelts
* sizeof (char *));
2536 make_cleanup (free
, canonical_arr
);
2537 memset (canonical_arr
, 0, nelts
* sizeof (char *));
2538 *canonical
= canonical_arr
;
2542 printf_unfiltered("[0] cancel\n[1] all\n");
2545 INIT_SAL (&return_values
.sals
[i
]); /* initialize to zeroes */
2546 INIT_SAL (&values
.sals
[i
]);
2547 if (sym_arr
[i
] && SYMBOL_CLASS (sym_arr
[i
]) == LOC_BLOCK
)
2549 values
.sals
[i
] = find_function_start_sal (sym_arr
[i
], funfirstline
);
2550 printf_unfiltered ("[%d] %s at %s:%d\n",
2552 SYMBOL_SOURCE_NAME (sym_arr
[i
]),
2553 values
.sals
[i
].symtab
->filename
,
2554 values
.sals
[i
].line
);
2557 printf_unfiltered ("?HERE\n");
2561 if ((prompt
= getenv ("PS2")) == NULL
)
2565 printf_unfiltered("%s ",prompt
);
2566 gdb_flush(gdb_stdout
);
2568 args
= command_line_input ((char *) NULL
, 0, "overload-choice");
2570 if (args
== 0 || *args
== 0)
2571 error_no_arg ("one or more choice numbers");
2579 while (*arg1
>= '0' && *arg1
<= '9') arg1
++;
2580 if (*arg1
&& *arg1
!= ' ' && *arg1
!= '\t')
2581 error ("Arguments must be choice numbers.");
2586 error ("cancelled");
2591 for (i
= 0; i
< nelts
; i
++)
2593 if (canonical_arr
[i
] == NULL
)
2595 symname
= SYMBOL_NAME (sym_arr
[i
]);
2596 canonical_arr
[i
] = savestring (symname
, strlen (symname
));
2600 memcpy (return_values
.sals
, values
.sals
,
2601 (nelts
* sizeof(struct symtab_and_line
)));
2602 return_values
.nelts
= nelts
;
2603 discard_cleanups (old_chain
);
2604 return return_values
;
2607 if (num
>= nelts
+ 2)
2609 printf_unfiltered ("No choice number %d.\n", num
);
2614 if (values
.sals
[num
].pc
)
2618 symname
= SYMBOL_NAME (sym_arr
[num
]);
2619 make_cleanup (free
, symname
);
2620 canonical_arr
[i
] = savestring (symname
, strlen (symname
));
2622 return_values
.sals
[i
++] = values
.sals
[num
];
2623 values
.sals
[num
].pc
= 0;
2627 printf_unfiltered ("duplicate request for %d ignored.\n", num
);
2632 while (*args
== ' ' || *args
== '\t') args
++;
2634 return_values
.nelts
= i
;
2635 discard_cleanups (old_chain
);
2636 return return_values
;
2640 /* Slave routine for sources_info. Force line breaks at ,'s.
2641 NAME is the name to print and *FIRST is nonzero if this is the first
2642 name printed. Set *FIRST to zero. */
2644 output_source_filename (name
, first
)
2648 /* Table of files printed so far. Since a single source file can
2649 result in several partial symbol tables, we need to avoid printing
2650 it more than once. Note: if some of the psymtabs are read in and
2651 some are not, it gets printed both under "Source files for which
2652 symbols have been read" and "Source files for which symbols will
2653 be read in on demand". I consider this a reasonable way to deal
2654 with the situation. I'm not sure whether this can also happen for
2655 symtabs; it doesn't hurt to check. */
2656 static char **tab
= NULL
;
2657 /* Allocated size of tab in elements.
2658 Start with one 256-byte block (when using GNU malloc.c).
2659 24 is the malloc overhead when range checking is in effect. */
2660 static int tab_alloc_size
= (256 - 24) / sizeof (char *);
2661 /* Current size of tab in elements. */
2662 static int tab_cur_size
;
2669 tab
= (char **) xmalloc (tab_alloc_size
* sizeof (*tab
));
2673 /* Is NAME in tab? */
2674 for (p
= tab
; p
< tab
+ tab_cur_size
; p
++)
2675 if (STREQ (*p
, name
))
2676 /* Yes; don't print it again. */
2678 /* No; add it to tab. */
2679 if (tab_cur_size
== tab_alloc_size
)
2681 tab_alloc_size
*= 2;
2682 tab
= (char **) xrealloc ((char *) tab
, tab_alloc_size
* sizeof (*tab
));
2684 tab
[tab_cur_size
++] = name
;
2692 printf_filtered (", ");
2696 fputs_filtered (name
, gdb_stdout
);
2700 sources_info (ignore
, from_tty
)
2704 register struct symtab
*s
;
2705 register struct partial_symtab
*ps
;
2706 register struct objfile
*objfile
;
2709 if (!have_full_symbols () && !have_partial_symbols ())
2711 error (no_symtab_msg
);
2714 printf_filtered ("Source files for which symbols have been read in:\n\n");
2717 ALL_SYMTABS (objfile
, s
)
2719 output_source_filename (s
-> filename
, &first
);
2721 printf_filtered ("\n\n");
2723 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
2726 ALL_PSYMTABS (objfile
, ps
)
2730 output_source_filename (ps
-> filename
, &first
);
2733 printf_filtered ("\n");
2736 /* List all symbols (if REGEXP is NULL) or all symbols matching REGEXP.
2737 If CLASS is zero, list all symbols except functions, type names, and
2739 If CLASS is 1, list only functions.
2740 If CLASS is 2, list only type names.
2741 If CLASS is 3, list only method names.
2743 BPT is non-zero if we should set a breakpoint at the functions
2747 list_symbols (regexp
, class, bpt
, from_tty
)
2753 register struct symtab
*s
;
2754 register struct partial_symtab
*ps
;
2755 register struct blockvector
*bv
;
2756 struct blockvector
*prev_bv
= 0;
2757 register struct block
*b
;
2759 register struct symbol
*sym
;
2760 struct partial_symbol
**psym
;
2761 struct objfile
*objfile
;
2762 struct minimal_symbol
*msymbol
;
2764 static char *classnames
[]
2765 = {"variable", "function", "type", "method"};
2766 int found_in_file
= 0;
2768 static enum minimal_symbol_type types
[]
2769 = {mst_data
, mst_text
, mst_abs
, mst_unknown
};
2770 static enum minimal_symbol_type types2
[]
2771 = {mst_bss
, mst_file_text
, mst_abs
, mst_unknown
};
2772 static enum minimal_symbol_type types3
[]
2773 = {mst_file_data
, mst_solib_trampoline
, mst_abs
, mst_unknown
};
2774 static enum minimal_symbol_type types4
[]
2775 = {mst_file_bss
, mst_text
, mst_abs
, mst_unknown
};
2776 enum minimal_symbol_type ourtype
= types
[class];
2777 enum minimal_symbol_type ourtype2
= types2
[class];
2778 enum minimal_symbol_type ourtype3
= types3
[class];
2779 enum minimal_symbol_type ourtype4
= types4
[class];
2783 /* Make sure spacing is right for C++ operators.
2784 This is just a courtesy to make the matching less sensitive
2785 to how many spaces the user leaves between 'operator'
2786 and <TYPENAME> or <OPERATOR>. */
2788 char *opname
= operator_chars (regexp
, &opend
);
2791 int fix
= -1; /* -1 means ok; otherwise number of spaces needed. */
2792 if (isalpha(*opname
) || *opname
== '_' || *opname
== '$')
2794 /* There should 1 space between 'operator' and 'TYPENAME'. */
2795 if (opname
[-1] != ' ' || opname
[-2] == ' ')
2800 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
2801 if (opname
[-1] == ' ')
2804 /* If wrong number of spaces, fix it. */
2807 char *tmp
= (char*) alloca(opend
-opname
+10);
2808 sprintf(tmp
, "operator%.*s%s", fix
, " ", opname
);
2813 if (0 != (val
= re_comp (regexp
)))
2814 error ("Invalid regexp (%s): %s", val
, regexp
);
2817 /* Search through the partial symtabs *first* for all symbols
2818 matching the regexp. That way we don't have to reproduce all of
2819 the machinery below. */
2821 ALL_PSYMTABS (objfile
, ps
)
2823 struct partial_symbol
**bound
, **gbound
, **sbound
;
2826 if (ps
->readin
) continue;
2828 gbound
= objfile
->global_psymbols
.list
+ ps
->globals_offset
+ ps
->n_global_syms
;
2829 sbound
= objfile
->static_psymbols
.list
+ ps
->statics_offset
+ ps
->n_static_syms
;
2832 /* Go through all of the symbols stored in a partial
2833 symtab in one loop. */
2834 psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
2839 if (bound
== gbound
&& ps
->n_static_syms
!= 0)
2841 psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
2852 /* If it would match (logic taken from loop below)
2853 load the file and go on to the next one */
2854 if ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (*psym
))
2855 && ((class == 0 && SYMBOL_CLASS (*psym
) != LOC_TYPEDEF
2856 && SYMBOL_CLASS (*psym
) != LOC_BLOCK
)
2857 || (class == 1 && SYMBOL_CLASS (*psym
) == LOC_BLOCK
)
2858 || (class == 2 && SYMBOL_CLASS (*psym
) == LOC_TYPEDEF
)
2859 || (class == 3 && SYMBOL_CLASS (*psym
) == LOC_BLOCK
)))
2861 PSYMTAB_TO_SYMTAB(ps
);
2869 /* Here, we search through the minimal symbol tables for functions
2870 and variables that match, and force their symbols to be read.
2871 This is in particular necessary for demangled variable names,
2872 which are no longer put into the partial symbol tables.
2873 The symbol will then be found during the scan of symtabs below.
2875 For functions, find_pc_symtab should succeed if we have debug info
2876 for the function, for variables we have to call lookup_symbol
2877 to determine if the variable has debug info.
2878 If the lookup fails, set found_misc so that we will rescan to print
2879 any matching symbols without debug info.
2882 if (class == 0 || class == 1)
2884 ALL_MSYMBOLS (objfile
, msymbol
)
2886 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
2887 MSYMBOL_TYPE (msymbol
) == ourtype2
||
2888 MSYMBOL_TYPE (msymbol
) == ourtype3
||
2889 MSYMBOL_TYPE (msymbol
) == ourtype4
)
2891 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
2893 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
)))
2896 || lookup_symbol (SYMBOL_NAME (msymbol
),
2897 (struct block
*) NULL
,
2899 0, (struct symtab
**) NULL
) == NULL
)
2907 /* Printout here so as to get after the "Reading in symbols"
2908 messages which will be generated above. */
2910 printf_filtered (regexp
2911 ? "All %ss matching regular expression \"%s\":\n"
2912 : "All defined %ss:\n",
2916 ALL_SYMTABS (objfile
, s
)
2919 bv
= BLOCKVECTOR (s
);
2920 /* Often many files share a blockvector.
2921 Scan each blockvector only once so that
2922 we don't get every symbol many times.
2923 It happens that the first symtab in the list
2924 for any given blockvector is the main file. */
2926 for (i
= GLOBAL_BLOCK
; i
<= STATIC_BLOCK
; i
++)
2928 b
= BLOCKVECTOR_BLOCK (bv
, i
);
2929 /* Skip the sort if this block is always sorted. */
2930 if (!BLOCK_SHOULD_SORT (b
))
2931 sort_block_syms (b
);
2932 for (j
= 0; j
< BLOCK_NSYMS (b
); j
++)
2935 sym
= BLOCK_SYM (b
, j
);
2936 if ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (sym
))
2937 && ((class == 0 && SYMBOL_CLASS (sym
) != LOC_TYPEDEF
2938 && SYMBOL_CLASS (sym
) != LOC_BLOCK
2939 && SYMBOL_CLASS (sym
) != LOC_CONST
)
2940 || (class == 1 && SYMBOL_CLASS (sym
) == LOC_BLOCK
)
2941 || (class == 2 && SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
2942 || (class == 3 && SYMBOL_CLASS (sym
) == LOC_BLOCK
)))
2946 /* Set a breakpoint here, if it's a function */
2949 /* There may be more than one function with the
2950 same name but in different files. In order to
2951 set breakpoints on all of them, we must give
2952 both the file name and the function name to
2954 Quoting the symbol name gets rid of problems
2955 with mangled symbol names that contain
2956 CPLUS_MARKER characters. */
2958 (char *) alloca (strlen (s
->filename
)
2959 + strlen (SYMBOL_NAME(sym
))
2961 strcpy (string
, s
->filename
);
2962 strcat (string
, ":'");
2963 strcat (string
, SYMBOL_NAME(sym
));
2964 strcat (string
, "'");
2965 break_command (string
, from_tty
);
2968 else if (!found_in_file
)
2970 fputs_filtered ("\nFile ", gdb_stdout
);
2971 fputs_filtered (s
->filename
, gdb_stdout
);
2972 fputs_filtered (":\n", gdb_stdout
);
2976 if (class != 2 && i
== STATIC_BLOCK
)
2977 printf_filtered ("static ");
2979 /* Typedef that is not a C++ class */
2981 && SYMBOL_NAMESPACE (sym
) != STRUCT_NAMESPACE
)
2982 c_typedef_print (SYMBOL_TYPE(sym
), sym
, gdb_stdout
);
2983 /* variable, func, or typedef-that-is-c++-class */
2984 else if (class < 2 ||
2986 SYMBOL_NAMESPACE(sym
) == STRUCT_NAMESPACE
))
2988 type_print (SYMBOL_TYPE (sym
),
2989 (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
2990 ? "" : SYMBOL_SOURCE_NAME (sym
)),
2993 printf_filtered (";\n");
2998 /* Tiemann says: "info methods was never implemented." */
2999 char *demangled_name
;
3000 c_type_print_base (TYPE_FN_FIELD_TYPE(t
, i
),
3002 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE(t
, i
),
3004 if (TYPE_FN_FIELD_STUB (t
, i
))
3005 check_stub_method (TYPE_DOMAIN_TYPE (type
), j
, i
);
3007 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t
, i
),
3008 DMGL_ANSI
| DMGL_PARAMS
);
3009 if (demangled_name
== NULL
)
3010 fprintf_filtered (stream
, "<badly mangled name %s>",
3011 TYPE_FN_FIELD_PHYSNAME (t
, i
));
3014 fputs_filtered (demangled_name
, stream
);
3015 free (demangled_name
);
3025 /* If there are no eyes, avoid all contact. I mean, if there are
3026 no debug symbols, then print directly from the msymbol_vector. */
3028 if (found_misc
|| class != 1)
3031 ALL_MSYMBOLS (objfile
, msymbol
)
3033 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
3034 MSYMBOL_TYPE (msymbol
) == ourtype2
||
3035 MSYMBOL_TYPE (msymbol
) == ourtype3
||
3036 MSYMBOL_TYPE (msymbol
) == ourtype4
)
3038 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
3040 /* Functions: Look up by address. */
3042 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
))))
3044 /* Variables/Absolutes: Look up by name */
3045 if (lookup_symbol (SYMBOL_NAME (msymbol
),
3046 (struct block
*) NULL
, VAR_NAMESPACE
,
3047 0, (struct symtab
**) NULL
) == NULL
)
3051 break_command (SYMBOL_NAME (msymbol
), from_tty
);
3052 printf_filtered ("<function, no debug info> %s;\n",
3053 SYMBOL_SOURCE_NAME (msymbol
));
3058 printf_filtered ("\nNon-debugging symbols:\n");
3061 printf_filtered (" %08lx %s\n",
3062 (unsigned long) SYMBOL_VALUE_ADDRESS (msymbol
),
3063 SYMBOL_SOURCE_NAME (msymbol
));
3073 variables_info (regexp
, from_tty
)
3077 list_symbols (regexp
, 0, 0, from_tty
);
3081 functions_info (regexp
, from_tty
)
3085 list_symbols (regexp
, 1, 0, from_tty
);
3089 types_info (regexp
, from_tty
)
3093 list_symbols (regexp
, 2, 0, from_tty
);
3097 /* Tiemann says: "info methods was never implemented." */
3099 methods_info (regexp
)
3102 list_symbols (regexp
, 3, 0, from_tty
);
3106 /* Breakpoint all functions matching regular expression. */
3108 rbreak_command (regexp
, from_tty
)
3112 list_symbols (regexp
, 1, 1, from_tty
);
3116 /* Return Nonzero if block a is lexically nested within block b,
3117 or if a and b have the same pc range.
3118 Return zero otherwise. */
3121 struct block
*a
, *b
;
3125 return BLOCK_START (a
) >= BLOCK_START (b
)
3126 && BLOCK_END (a
) <= BLOCK_END (b
);
3130 /* Helper routine for make_symbol_completion_list. */
3132 static int return_val_size
;
3133 static int return_val_index
;
3134 static char **return_val
;
3136 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
3138 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
3139 /* Put only the mangled name on the list. */ \
3140 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
3141 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
3142 completion_list_add_name \
3143 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
3145 completion_list_add_name \
3146 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
3149 /* Test to see if the symbol specified by SYMNAME (which is already
3150 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
3151 characters. If so, add it to the current completion list. */
3154 completion_list_add_name (symname
, sym_text
, sym_text_len
, text
, word
)
3164 /* clip symbols that cannot match */
3166 if (strncmp (symname
, sym_text
, sym_text_len
) != 0)
3171 /* Clip any symbol names that we've already considered. (This is a
3172 time optimization) */
3174 for (i
= 0; i
< return_val_index
; ++i
)
3176 if (STREQ (symname
, return_val
[i
]))
3182 /* We have a match for a completion, so add SYMNAME to the current list
3183 of matches. Note that the name is moved to freshly malloc'd space. */
3187 if (word
== sym_text
)
3189 new = xmalloc (strlen (symname
) + 5);
3190 strcpy (new, symname
);
3192 else if (word
> sym_text
)
3194 /* Return some portion of symname. */
3195 new = xmalloc (strlen (symname
) + 5);
3196 strcpy (new, symname
+ (word
- sym_text
));
3200 /* Return some of SYM_TEXT plus symname. */
3201 new = xmalloc (strlen (symname
) + (sym_text
- word
) + 5);
3202 strncpy (new, word
, sym_text
- word
);
3203 new[sym_text
- word
] = '\0';
3204 strcat (new, symname
);
3207 /* Recheck for duplicates if we intend to add a modified symbol. */
3208 if (word
!= sym_text
)
3210 for (i
= 0; i
< return_val_index
; ++i
)
3212 if (STREQ (new, return_val
[i
]))
3220 if (return_val_index
+ 3 > return_val_size
)
3222 newsize
= (return_val_size
*= 2) * sizeof (char *);
3223 return_val
= (char **) xrealloc ((char *) return_val
, newsize
);
3225 return_val
[return_val_index
++] = new;
3226 return_val
[return_val_index
] = NULL
;
3230 /* Return a NULL terminated array of all symbols (regardless of class) which
3231 begin by matching TEXT. If the answer is no symbols, then the return value
3232 is an array which contains only a NULL pointer.
3234 Problem: All of the symbols have to be copied because readline frees them.
3235 I'm not going to worry about this; hopefully there won't be that many. */
3238 make_symbol_completion_list (text
, word
)
3242 register struct symbol
*sym
;
3243 register struct symtab
*s
;
3244 register struct partial_symtab
*ps
;
3245 register struct minimal_symbol
*msymbol
;
3246 register struct objfile
*objfile
;
3247 register struct block
*b
, *surrounding_static_block
= 0;
3249 struct partial_symbol
**psym
;
3250 /* The symbol we are completing on. Points in same buffer as text. */
3252 /* Length of sym_text. */
3255 /* Now look for the symbol we are supposed to complete on.
3256 FIXME: This should be language-specific. */
3260 char *quote_pos
= NULL
;
3262 /* First see if this is a quoted string. */
3264 for (p
= text
; *p
!= '\0'; ++p
)
3266 if (quote_found
!= '\0')
3268 if (*p
== quote_found
)
3269 /* Found close quote. */
3271 else if (*p
== '\\' && p
[1] == quote_found
)
3272 /* A backslash followed by the quote character
3273 doesn't end the string. */
3276 else if (*p
== '\'' || *p
== '"')
3282 if (quote_found
== '\'')
3283 /* A string within single quotes can be a symbol, so complete on it. */
3284 sym_text
= quote_pos
+ 1;
3285 else if (quote_found
== '"')
3286 /* A double-quoted string is never a symbol, nor does it make sense
3287 to complete it any other way. */
3291 /* It is not a quoted string. Break it based on the characters
3292 which are in symbols. */
3295 if (isalnum (p
[-1]) || p
[-1] == '_' || p
[-1] == '\0')
3304 sym_text_len
= strlen (sym_text
);
3306 return_val_size
= 100;
3307 return_val_index
= 0;
3308 return_val
= (char **) xmalloc ((return_val_size
+ 1) * sizeof (char *));
3309 return_val
[0] = NULL
;
3311 /* Look through the partial symtabs for all symbols which begin
3312 by matching SYM_TEXT. Add each one that you find to the list. */
3314 ALL_PSYMTABS (objfile
, ps
)
3316 /* If the psymtab's been read in we'll get it when we search
3317 through the blockvector. */
3318 if (ps
->readin
) continue;
3320 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
3321 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
3322 + ps
->n_global_syms
);
3325 /* If interrupted, then quit. */
3327 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
3330 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
3331 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
3332 + ps
->n_static_syms
);
3336 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
3340 /* At this point scan through the misc symbol vectors and add each
3341 symbol you find to the list. Eventually we want to ignore
3342 anything that isn't a text symbol (everything else will be
3343 handled by the psymtab code above). */
3345 ALL_MSYMBOLS (objfile
, msymbol
)
3348 COMPLETION_LIST_ADD_SYMBOL (msymbol
, sym_text
, sym_text_len
, text
, word
);
3351 /* Search upwards from currently selected frame (so that we can
3352 complete on local vars. */
3354 for (b
= get_selected_block (); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
3356 if (!BLOCK_SUPERBLOCK (b
))
3358 surrounding_static_block
= b
; /* For elmin of dups */
3361 /* Also catch fields of types defined in this places which match our
3362 text string. Only complete on types visible from current context. */
3364 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3366 sym
= BLOCK_SYM (b
, i
);
3367 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3368 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
3370 struct type
*t
= SYMBOL_TYPE (sym
);
3371 enum type_code c
= TYPE_CODE (t
);
3373 if (c
== TYPE_CODE_UNION
|| c
== TYPE_CODE_STRUCT
)
3375 for (j
= TYPE_N_BASECLASSES (t
); j
< TYPE_NFIELDS (t
); j
++)
3377 if (TYPE_FIELD_NAME (t
, j
))
3379 completion_list_add_name (TYPE_FIELD_NAME (t
, j
),
3380 sym_text
, sym_text_len
, text
, word
);
3388 /* Go through the symtabs and check the externs and statics for
3389 symbols which match. */
3391 ALL_SYMTABS (objfile
, s
)
3394 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
3395 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3397 sym
= BLOCK_SYM (b
, i
);
3398 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3402 ALL_SYMTABS (objfile
, s
)
3405 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
3406 /* Don't do this block twice. */
3407 if (b
== surrounding_static_block
) continue;
3408 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
3410 sym
= BLOCK_SYM (b
, i
);
3411 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
3415 return (return_val
);
3418 /* Determine if PC is in the prologue of a function. The prologue is the area
3419 between the first instruction of a function, and the first executable line.
3420 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
3422 If non-zero, func_start is where we think the prologue starts, possibly
3423 by previous examination of symbol table information.
3427 in_prologue (pc
, func_start
)
3429 CORE_ADDR func_start
;
3431 struct symtab_and_line sal
;
3432 CORE_ADDR func_addr
, func_end
;
3434 if (!find_pc_partial_function (pc
, NULL
, &func_addr
, &func_end
))
3435 goto nosyms
; /* Might be in prologue */
3437 sal
= find_pc_line (func_addr
, 0);
3442 if (sal
.end
> func_addr
3443 && sal
.end
<= func_end
) /* Is prologue in function? */
3444 return pc
< sal
.end
; /* Yes, is pc in prologue? */
3446 /* The line after the prologue seems to be outside the function. In this
3447 case, tell the caller to find the prologue the hard way. */
3451 /* Come here when symtabs don't contain line # info. In this case, it is
3452 likely that the user has stepped into a library function w/o symbols, or
3453 is doing a stepi/nexti through code without symbols. */
3457 /* If func_start is zero (meaning unknown) then we don't know whether pc is
3458 in the prologue or not. I.E. it might be. */
3460 if (!func_start
) return 1;
3462 /* We need to call the target-specific prologue skipping functions with the
3463 function's start address because PC may be pointing at an instruction that
3464 could be mistakenly considered part of the prologue. */
3466 SKIP_PROLOGUE (func_start
);
3468 return pc
< func_start
;
3473 _initialize_symtab ()
3475 add_info ("variables", variables_info
,
3476 "All global and static variable names, or those matching REGEXP.");
3477 add_info ("functions", functions_info
,
3478 "All function names, or those matching REGEXP.");
3480 /* FIXME: This command has at least the following problems:
3481 1. It prints builtin types (in a very strange and confusing fashion).
3482 2. It doesn't print right, e.g. with
3483 typedef struct foo *FOO
3484 type_print prints "FOO" when we want to make it (in this situation)
3485 print "struct foo *".
3486 I also think "ptype" or "whatis" is more likely to be useful (but if
3487 there is much disagreement "info types" can be fixed). */
3488 add_info ("types", types_info
,
3489 "All type names, or those matching REGEXP.");
3492 add_info ("methods", methods_info
,
3493 "All method names, or those matching REGEXP::REGEXP.\n\
3494 If the class qualifier is omitted, it is assumed to be the current scope.\n\
3495 If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
3498 add_info ("sources", sources_info
,
3499 "Source files in the program.");
3501 add_com ("rbreak", no_class
, rbreak_command
,
3502 "Set a breakpoint for all functions matching REGEXP.");
3504 /* Initialize the one built-in type that isn't language dependent... */
3505 builtin_type_error
= init_type (TYPE_CODE_ERROR
, 0, 0,
3506 "<unknown type>", (struct objfile
*) NULL
);