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 "gnu-regex.h"
34 #include "expression.h"
41 #include <sys/types.h>
43 #include "gdb_string.h"
47 /* Prototype for one function in parser-defs.h,
48 instead of including that entire file. */
50 extern char *find_template_name_end
PARAMS ((char *));
52 /* Prototypes for local functions */
54 static int find_methods
PARAMS ((struct type
*, char *, struct symbol
**));
56 static void completion_list_add_name
PARAMS ((char *, char *, int, char *,
59 static void build_canonical_line_spec
PARAMS ((struct symtab_and_line
*,
62 static struct symtabs_and_lines decode_line_2
PARAMS ((struct symbol
*[],
65 static void rbreak_command
PARAMS ((char *, int));
67 static void types_info
PARAMS ((char *, int));
69 static void functions_info
PARAMS ((char *, int));
71 static void variables_info
PARAMS ((char *, int));
73 static void sources_info
PARAMS ((char *, int));
75 static void output_source_filename
PARAMS ((char *, int *));
77 char *operator_chars
PARAMS ((char *, char **));
79 static int find_line_common
PARAMS ((struct linetable
*, int, int *));
81 static struct partial_symbol
*lookup_partial_symbol PARAMS
82 ((struct partial_symtab
*, const char *,
83 int, namespace_enum
));
85 static struct partial_symbol
*fixup_psymbol_section
PARAMS ((struct
86 partial_symbol
*, struct objfile
*));
88 static struct symtab
*lookup_symtab_1
PARAMS ((char *));
90 static void cplusplus_hint
PARAMS ((char *));
92 static struct symbol
*find_active_alias
PARAMS ((struct symbol
* sym
,
95 /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
96 /* Signals the presence of objects compiled by HP compilers */
97 int hp_som_som_object_present
= 0;
99 static void fixup_section
PARAMS ((struct general_symbol_info
*,
102 static int file_matches
PARAMS ((char *, char **, int));
104 static void print_symbol_info
PARAMS ((namespace_enum
,
105 struct symtab
*, struct symbol
*,
108 static void print_msymbol_info
PARAMS ((struct minimal_symbol
*));
110 static void symtab_symbol_info
PARAMS ((char *, namespace_enum
, int));
112 static void overload_list_add_symbol
PARAMS ((struct symbol
* sym
,
115 void _initialize_symtab
PARAMS ((void));
119 /* The single non-language-specific builtin type */
120 struct type
*builtin_type_error
;
122 /* Block in which the most recently searched-for symbol was found.
123 Might be better to make this a parameter to lookup_symbol and
126 const struct block
*block_found
;
128 char no_symtab_msg
[] = "No symbol table is loaded. Use the \"file\" command.";
130 /* While the C++ support is still in flux, issue a possibly helpful hint on
131 using the new command completion feature on single quoted demangled C++
132 symbols. Remove when loose ends are cleaned up. FIXME -fnf */
135 cplusplus_hint (name
)
138 while (*name
== '\'')
140 printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name
, name
);
141 printf_filtered ("(Note leading single quote.)\n");
144 /* Check for a symtab of a specific name; first in symtabs, then in
145 psymtabs. *If* there is no '/' in the name, a match after a '/'
146 in the symtab filename will also work. */
148 static struct symtab
*
149 lookup_symtab_1 (name
)
152 register struct symtab
*s
;
153 register struct partial_symtab
*ps
;
154 register char *slash
;
155 register struct objfile
*objfile
;
159 /* First, search for an exact match */
161 ALL_SYMTABS (objfile
, s
)
162 if (STREQ (name
, s
->filename
))
165 slash
= strchr (name
, '/');
167 /* Now, search for a matching tail (only if name doesn't have any dirs) */
170 ALL_SYMTABS (objfile
, s
)
172 char *p
= s
->filename
;
173 char *tail
= strrchr (p
, '/');
182 /* Same search rules as above apply here, but now we look thru the
185 ps
= lookup_partial_symtab (name
);
190 error ("Internal: readin %s pst for `%s' found when no symtab found.",
193 s
= PSYMTAB_TO_SYMTAB (ps
);
198 /* At this point, we have located the psymtab for this file, but
199 the conversion to a symtab has failed. This usually happens
200 when we are looking up an include file. In this case,
201 PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has
202 been created. So, we need to run through the symtabs again in
203 order to find the file.
204 XXX - This is a crock, and should be fixed inside of the the
205 symbol parsing routines. */
209 /* Lookup the symbol table of a source file named NAME. Try a couple
210 of variations if the first lookup doesn't work. */
216 register struct symtab
*s
;
221 s
= lookup_symtab_1 (name
);
226 /* This screws c-exp.y:yylex if there is both a type "tree" and a symtab
229 /* If name not found as specified, see if adding ".c" helps. */
230 /* Why is this? Is it just a user convenience? (If so, it's pretty
231 questionable in the presence of C++, FORTRAN, etc.). It's not in
234 copy
= (char *) alloca (strlen (name
) + 3);
237 s
= lookup_symtab_1 (copy
);
242 /* We didn't find anything; die. */
246 /* Lookup the partial symbol table of a source file named NAME.
247 *If* there is no '/' in the name, a match after a '/'
248 in the psymtab filename will also work. */
250 struct partial_symtab
*
251 lookup_partial_symtab (name
)
254 register struct partial_symtab
*pst
;
255 register struct objfile
*objfile
;
257 ALL_PSYMTABS (objfile
, pst
)
259 if (STREQ (name
, pst
->filename
))
265 /* Now, search for a matching tail (only if name doesn't have any dirs) */
267 if (!strchr (name
, '/'))
268 ALL_PSYMTABS (objfile
, pst
)
270 char *p
= pst
->filename
;
271 char *tail
= strrchr (p
, '/');
283 /* Mangle a GDB method stub type. This actually reassembles the pieces of the
284 full method name, which consist of the class name (from T), the unadorned
285 method name from METHOD_ID, and the signature for the specific overload,
286 specified by SIGNATURE_ID. Note that this function is g++ specific. */
289 gdb_mangle_name (type
, method_id
, signature_id
)
291 int method_id
, signature_id
;
293 int mangled_name_len
;
295 struct fn_field
*f
= TYPE_FN_FIELDLIST1 (type
, method_id
);
296 struct fn_field
*method
= &f
[signature_id
];
297 char *field_name
= TYPE_FN_FIELDLIST_NAME (type
, method_id
);
298 char *physname
= TYPE_FN_FIELD_PHYSNAME (f
, signature_id
);
299 char *newname
= type_name_no_tag (type
);
301 /* Does the form of physname indicate that it is the full mangled name
302 of a constructor (not just the args)? */
303 int is_full_physname_constructor
;
306 int is_destructor
= DESTRUCTOR_PREFIX_P (physname
);
307 /* Need a new type prefix. */
308 char *const_prefix
= method
->is_const
? "C" : "";
309 char *volatile_prefix
= method
->is_volatile
? "V" : "";
311 int len
= (newname
== NULL
? 0 : strlen (newname
));
313 is_full_physname_constructor
=
314 ((physname
[0] == '_' && physname
[1] == '_' &&
315 (isdigit (physname
[2]) || physname
[2] == 'Q' || physname
[2] == 't'))
316 || (strncmp (physname
, "__ct", 4) == 0));
319 is_full_physname_constructor
|| (newname
&& STREQ (field_name
, newname
));
322 is_destructor
= (strncmp (physname
, "__dt", 4) == 0);
324 if (is_destructor
|| is_full_physname_constructor
)
326 mangled_name
= (char *) xmalloc (strlen (physname
) + 1);
327 strcpy (mangled_name
, physname
);
333 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
335 else if (physname
[0] == 't' || physname
[0] == 'Q')
337 /* The physname for template and qualified methods already includes
339 sprintf (buf
, "__%s%s", const_prefix
, volatile_prefix
);
345 sprintf (buf
, "__%s%s%d", const_prefix
, volatile_prefix
, len
);
347 mangled_name_len
= ((is_constructor
? 0 : strlen (field_name
))
352 /* Only needed for GNU-mangled names. ANSI-mangled names
353 work with the normal mechanisms. */
354 if (OPNAME_PREFIX_P (field_name
))
356 const char *opname
= cplus_mangle_opname (field_name
+ 3, 0);
358 error ("No mangling for \"%s\"", field_name
);
359 mangled_name_len
+= strlen (opname
);
360 mangled_name
= (char *) xmalloc (mangled_name_len
);
362 strncpy (mangled_name
, field_name
, 3);
363 mangled_name
[3] = '\0';
364 strcat (mangled_name
, opname
);
368 mangled_name
= (char *) xmalloc (mangled_name_len
);
370 mangled_name
[0] = '\0';
372 strcpy (mangled_name
, field_name
);
374 strcat (mangled_name
, buf
);
375 /* If the class doesn't have a name, i.e. newname NULL, then we just
376 mangle it using 0 for the length of the class. Thus it gets mangled
377 as something starting with `::' rather than `classname::'. */
379 strcat (mangled_name
, newname
);
381 strcat (mangled_name
, physname
);
382 return (mangled_name
);
387 /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
389 struct partial_symtab
*
390 find_pc_sect_psymtab (pc
, section
)
394 register struct partial_symtab
*pst
;
395 register struct objfile
*objfile
;
397 ALL_PSYMTABS (objfile
, pst
)
399 #if defined(HPUXHPPA)
400 if (pc
>= pst
->textlow
&& pc
<= pst
->texthigh
)
402 if (pc
>= pst
->textlow
&& pc
< pst
->texthigh
)
405 struct minimal_symbol
*msymbol
;
406 struct partial_symtab
*tpst
;
408 /* An objfile that has its functions reordered might have
409 many partial symbol tables containing the PC, but
410 we want the partial symbol table that contains the
411 function containing the PC. */
412 if (!(objfile
->flags
& OBJF_REORDERED
) &&
413 section
== 0) /* can't validate section this way */
416 msymbol
= lookup_minimal_symbol_by_pc_section (pc
, section
);
420 for (tpst
= pst
; tpst
!= NULL
; tpst
= tpst
->next
)
422 #if defined(HPUXHPPA)
423 if (pc
>= tpst
->textlow
&& pc
<= tpst
->texthigh
)
425 if (pc
>= tpst
->textlow
&& pc
< tpst
->texthigh
)
428 struct partial_symbol
*p
;
430 p
= find_pc_sect_psymbol (tpst
, pc
, section
);
432 && SYMBOL_VALUE_ADDRESS (p
)
433 == SYMBOL_VALUE_ADDRESS (msymbol
))
443 /* Find which partial symtab contains PC. Return 0 if none.
444 Backward compatibility, no section */
446 struct partial_symtab
*
450 return find_pc_sect_psymtab (pc
, find_pc_mapped_section (pc
));
453 /* Find which partial symbol within a psymtab matches PC and SECTION.
454 Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
456 struct partial_symbol
*
457 find_pc_sect_psymbol (psymtab
, pc
, section
)
458 struct partial_symtab
*psymtab
;
462 struct partial_symbol
*best
= NULL
, *p
, **pp
;
466 psymtab
= find_pc_sect_psymtab (pc
, section
);
470 /* Cope with programs that start at address 0 */
471 best_pc
= (psymtab
->textlow
!= 0) ? psymtab
->textlow
- 1 : 0;
473 /* Search the global symbols as well as the static symbols, so that
474 find_pc_partial_function doesn't use a minimal symbol and thus
475 cache a bad endaddr. */
476 for (pp
= psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
;
477 (pp
- (psymtab
->objfile
->global_psymbols
.list
+ psymtab
->globals_offset
)
478 < psymtab
->n_global_syms
);
482 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
483 && SYMBOL_CLASS (p
) == LOC_BLOCK
484 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
485 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
486 || (psymtab
->textlow
== 0
487 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
489 if (section
) /* match on a specific section */
491 fixup_psymbol_section (p
, psymtab
->objfile
);
492 if (SYMBOL_BFD_SECTION (p
) != section
)
495 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
500 for (pp
= psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
;
501 (pp
- (psymtab
->objfile
->static_psymbols
.list
+ psymtab
->statics_offset
)
502 < psymtab
->n_static_syms
);
506 if (SYMBOL_NAMESPACE (p
) == VAR_NAMESPACE
507 && SYMBOL_CLASS (p
) == LOC_BLOCK
508 && pc
>= SYMBOL_VALUE_ADDRESS (p
)
509 && (SYMBOL_VALUE_ADDRESS (p
) > best_pc
510 || (psymtab
->textlow
== 0
511 && best_pc
== 0 && SYMBOL_VALUE_ADDRESS (p
) == 0)))
513 if (section
) /* match on a specific section */
515 fixup_psymbol_section (p
, psymtab
->objfile
);
516 if (SYMBOL_BFD_SECTION (p
) != section
)
519 best_pc
= SYMBOL_VALUE_ADDRESS (p
);
527 /* Find which partial symbol within a psymtab matches PC. Return 0 if none.
528 Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
530 struct partial_symbol
*
531 find_pc_psymbol (psymtab
, pc
)
532 struct partial_symtab
*psymtab
;
535 return find_pc_sect_psymbol (psymtab
, pc
, find_pc_mapped_section (pc
));
538 /* Debug symbols usually don't have section information. We need to dig that
539 out of the minimal symbols and stash that in the debug symbol. */
542 fixup_section (ginfo
, objfile
)
543 struct general_symbol_info
*ginfo
;
544 struct objfile
*objfile
;
546 struct minimal_symbol
*msym
;
547 msym
= lookup_minimal_symbol (ginfo
->name
, NULL
, objfile
);
550 ginfo
->bfd_section
= SYMBOL_BFD_SECTION (msym
);
554 fixup_symbol_section (sym
, objfile
)
556 struct objfile
*objfile
;
561 if (SYMBOL_BFD_SECTION (sym
))
564 fixup_section (&sym
->ginfo
, objfile
);
569 static struct partial_symbol
*
570 fixup_psymbol_section (psym
, objfile
)
571 struct partial_symbol
*psym
;
572 struct objfile
*objfile
;
577 if (SYMBOL_BFD_SECTION (psym
))
580 fixup_section (&psym
->ginfo
, objfile
);
585 /* Find the definition for a specified symbol name NAME
586 in namespace NAMESPACE, visible from lexical block BLOCK.
587 Returns the struct symbol pointer, or zero if no symbol is found.
588 If SYMTAB is non-NULL, store the symbol table in which the
589 symbol was found there, or NULL if not found.
590 C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if
591 NAME is a field of the current implied argument `this'. If so set
592 *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero.
593 BLOCK_FOUND is set to the block in which NAME is found (in the case of
594 a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */
596 /* This function has a bunch of loops in it and it would seem to be
597 attractive to put in some QUIT's (though I'm not really sure
598 whether it can run long enough to be really important). But there
599 are a few calls for which it would appear to be bad news to quit
600 out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and
601 nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++
602 code below which can error(), but that probably doesn't affect
603 these calls since they are looking for a known variable and thus
604 can probably assume it will never hit the C++ code). */
607 lookup_symbol (name
, block
, namespace, is_a_field_of_this
, symtab
)
609 register const struct block
*block
;
610 const namespace_enum
namespace;
611 int *is_a_field_of_this
;
612 struct symtab
**symtab
;
614 register struct symbol
*sym
;
615 register struct symtab
*s
= NULL
;
616 register struct partial_symtab
*ps
;
617 struct blockvector
*bv
;
618 register struct objfile
*objfile
= NULL
;
619 register struct block
*b
;
620 register struct minimal_symbol
*msymbol
;
622 /* Search specified block and its superiors. */
626 sym
= lookup_block_symbol (block
, name
, namespace);
632 /* Search the list of symtabs for one which contains the
633 address of the start of this block. */
634 ALL_SYMTABS (objfile
, s
)
636 bv
= BLOCKVECTOR (s
);
637 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
638 if (BLOCK_START (b
) <= BLOCK_START (block
)
639 && BLOCK_END (b
) > BLOCK_START (block
))
646 return fixup_symbol_section (sym
, objfile
);
648 block
= BLOCK_SUPERBLOCK (block
);
651 /* FIXME: this code is never executed--block is always NULL at this
652 point. What is it trying to do, anyway? We already should have
653 checked the STATIC_BLOCK above (it is the superblock of top-level
654 blocks). Why is VAR_NAMESPACE special-cased? */
655 /* Don't need to mess with the psymtabs; if we have a block,
656 that file is read in. If we don't, then we deal later with
657 all the psymtab stuff that needs checking. */
658 /* Note (RT): The following never-executed code looks unnecessary to me also.
659 * If we change the code to use the original (passed-in)
660 * value of 'block', we could cause it to execute, but then what
661 * would it do? The STATIC_BLOCK of the symtab containing the passed-in
662 * 'block' was already searched by the above code. And the STATIC_BLOCK's
663 * of *other* symtabs (those files not containing 'block' lexically)
664 * should not contain 'block' address-wise. So we wouldn't expect this
665 * code to find any 'sym''s that were not found above. I vote for
666 * deleting the following paragraph of code.
668 if (namespace == VAR_NAMESPACE
&& block
!= NULL
)
671 /* Find the right symtab. */
672 ALL_SYMTABS (objfile
, s
)
674 bv
= BLOCKVECTOR (s
);
675 b
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
676 if (BLOCK_START (b
) <= BLOCK_START (block
)
677 && BLOCK_END (b
) > BLOCK_START (block
))
679 sym
= lookup_block_symbol (b
, name
, VAR_NAMESPACE
);
685 return fixup_symbol_section (sym
, objfile
);
692 /* C++: If requested to do so by the caller,
693 check to see if NAME is a field of `this'. */
694 if (is_a_field_of_this
)
696 struct value
*v
= value_of_this (0);
698 *is_a_field_of_this
= 0;
699 if (v
&& check_field (v
, name
))
701 *is_a_field_of_this
= 1;
708 /* Now search all global blocks. Do the symtab's first, then
709 check the psymtab's. If a psymtab indicates the existence
710 of the desired name as a global, then do psymtab-to-symtab
711 conversion on the fly and return the found symbol. */
713 ALL_SYMTABS (objfile
, s
)
715 bv
= BLOCKVECTOR (s
);
716 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
717 sym
= lookup_block_symbol (block
, name
, namespace);
723 return fixup_symbol_section (sym
, objfile
);
729 /* Check for the possibility of the symbol being a function or
730 a mangled variable that is stored in one of the minimal symbol tables.
731 Eventually, all global symbols might be resolved in this way. */
733 if (namespace == VAR_NAMESPACE
)
735 msymbol
= lookup_minimal_symbol (name
, NULL
, NULL
);
738 s
= find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol
),
739 SYMBOL_BFD_SECTION (msymbol
));
742 /* This is a function which has a symtab for its address. */
743 bv
= BLOCKVECTOR (s
);
744 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
745 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
747 /* We kept static functions in minimal symbol table as well as
748 in static scope. We want to find them in the symbol table. */
751 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
752 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
756 /* sym == 0 if symbol was found in the minimal symbol table
757 but not in the symtab.
758 Return 0 to use the msymbol definition of "foo_".
760 This happens for Fortran "foo_" symbols,
761 which are "foo" in the symtab.
763 This can also happen if "asm" is used to make a
764 regular symbol but not a debugging symbol, e.g.
771 return fixup_symbol_section (sym
, objfile
);
773 else if (MSYMBOL_TYPE (msymbol
) != mst_text
774 && MSYMBOL_TYPE (msymbol
) != mst_file_text
775 && !STREQ (name
, SYMBOL_NAME (msymbol
)))
777 /* This is a mangled variable, look it up by its
779 return lookup_symbol (SYMBOL_NAME (msymbol
), block
,
780 namespace, is_a_field_of_this
, symtab
);
782 /* There are no debug symbols for this file, or we are looking
783 for an unmangled variable.
784 Try to find a matching static symbol below. */
790 ALL_PSYMTABS (objfile
, ps
)
792 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 1, namespace))
794 s
= PSYMTAB_TO_SYMTAB (ps
);
795 bv
= BLOCKVECTOR (s
);
796 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
797 sym
= lookup_block_symbol (block
, name
, namespace);
800 /* This shouldn't be necessary, but as a last resort
801 * try looking in the statics even though the psymtab
802 * claimed the symbol was global. It's possible that
803 * the psymtab gets it wrong in some cases.
805 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
806 sym
= lookup_block_symbol (block
, name
, namespace);
808 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
809 %s may be an inlined function, or may be a template function\n\
810 (if a template, try specifying an instantiation: %s<type>).",
811 name
, ps
->filename
, name
, name
);
815 return fixup_symbol_section (sym
, objfile
);
819 /* Now search all static file-level symbols.
820 Not strictly correct, but more useful than an error.
821 Do the symtabs first, then check the psymtabs.
822 If a psymtab indicates the existence
823 of the desired name as a file-level static, then do psymtab-to-symtab
824 conversion on the fly and return the found symbol. */
826 ALL_SYMTABS (objfile
, s
)
828 bv
= BLOCKVECTOR (s
);
829 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
830 sym
= lookup_block_symbol (block
, name
, namespace);
836 return fixup_symbol_section (sym
, objfile
);
840 ALL_PSYMTABS (objfile
, ps
)
842 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 0, namespace))
844 s
= PSYMTAB_TO_SYMTAB (ps
);
845 bv
= BLOCKVECTOR (s
);
846 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
847 sym
= lookup_block_symbol (block
, name
, namespace);
850 /* This shouldn't be necessary, but as a last resort
851 * try looking in the globals even though the psymtab
852 * claimed the symbol was static. It's possible that
853 * the psymtab gets it wrong in some cases.
855 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
856 sym
= lookup_block_symbol (block
, name
, namespace);
858 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
859 %s may be an inlined function, or may be a template function\n\
860 (if a template, try specifying an instantiation: %s<type>).",
861 name
, ps
->filename
, name
, name
);
865 return fixup_symbol_section (sym
, objfile
);
871 /* Check for the possibility of the symbol being a function or
872 a global variable that is stored in one of the minimal symbol tables.
873 The "minimal symbol table" is built from linker-supplied info.
875 RT: I moved this check to last, after the complete search of
876 the global (p)symtab's and static (p)symtab's. For HP-generated
877 symbol tables, this check was causing a premature exit from
878 lookup_symbol with NULL return, and thus messing up symbol lookups
879 of things like "c::f". It seems to me a check of the minimal
880 symbol table ought to be a last resort in any case. I'm vaguely
881 worried about the comment below which talks about FORTRAN routines "foo_"
882 though... is it saying we need to do the "minsym" check before
883 the static check in this case?
886 if (namespace == VAR_NAMESPACE
)
888 msymbol
= lookup_minimal_symbol (name
, NULL
, NULL
);
891 /* OK, we found a minimal symbol in spite of not
892 * finding any symbol. There are various possible
893 * explanations for this. One possibility is the symbol
894 * exists in code not compiled -g. Another possibility
895 * is that the 'psymtab' isn't doing its job.
896 * A third possibility, related to #2, is that we were confused
897 * by name-mangling. For instance, maybe the psymtab isn't
898 * doing its job because it only know about demangled
899 * names, but we were given a mangled name...
902 /* We first use the address in the msymbol to try to
903 * locate the appropriate symtab. Note that find_pc_symtab()
904 * has a side-effect of doing psymtab-to-symtab expansion,
905 * for the found symtab.
907 s
= find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
));
910 bv
= BLOCKVECTOR (s
);
911 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
912 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
914 /* We kept static functions in minimal symbol table as well as
915 in static scope. We want to find them in the symbol table. */
918 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
919 sym
= lookup_block_symbol (block
, SYMBOL_NAME (msymbol
),
922 /* If we found one, return it */
930 /* If we get here with sym == 0, the symbol was
931 found in the minimal symbol table
932 but not in the symtab.
933 Fall through and return 0 to use the msymbol
934 definition of "foo_".
935 (Note that outer code generally follows up a call
936 to this routine with a call to lookup_minimal_symbol(),
937 so a 0 return means we'll just flow into that other routine).
939 This happens for Fortran "foo_" symbols,
940 which are "foo" in the symtab.
942 This can also happen if "asm" is used to make a
943 regular symbol but not a debugging symbol, e.g.
949 /* If the lookup-by-address fails, try repeating the
950 * entire lookup process with the symbol name from
951 * the msymbol (if different from the original symbol name).
953 else if (MSYMBOL_TYPE (msymbol
) != mst_text
954 && MSYMBOL_TYPE (msymbol
) != mst_file_text
955 && !STREQ (name
, SYMBOL_NAME (msymbol
)))
957 return lookup_symbol (SYMBOL_NAME (msymbol
), block
,
958 namespace, is_a_field_of_this
, symtab
);
970 /* Look, in partial_symtab PST, for symbol NAME. Check the global
971 symbols if GLOBAL, the static symbols if not */
973 static struct partial_symbol
*
974 lookup_partial_symbol (pst
, name
, global
, namespace)
975 struct partial_symtab
*pst
;
978 namespace_enum
namespace;
980 struct partial_symbol
**start
, **psym
;
981 struct partial_symbol
**top
, **bottom
, **center
;
982 int length
= (global
? pst
->n_global_syms
: pst
->n_static_syms
);
983 int do_linear_search
= 1;
991 pst
->objfile
->global_psymbols
.list
+ pst
->globals_offset
:
992 pst
->objfile
->static_psymbols
.list
+ pst
->statics_offset
);
994 if (global
) /* This means we can use a binary search. */
996 do_linear_search
= 0;
998 /* Binary search. This search is guaranteed to end with center
999 pointing at the earliest partial symbol with the correct
1000 name. At that point *all* partial symbols with that name
1001 will be checked against the correct namespace. */
1004 top
= start
+ length
- 1;
1005 while (top
> bottom
)
1007 center
= bottom
+ (top
- bottom
) / 2;
1008 if (!(center
< top
))
1010 if (!do_linear_search
1011 && (SYMBOL_LANGUAGE (*center
) == language_cplus
1012 || SYMBOL_LANGUAGE (*center
) == language_java
1015 do_linear_search
= 1;
1017 if (STRCMP (SYMBOL_NAME (*center
), name
) >= 0)
1023 bottom
= center
+ 1;
1026 if (!(top
== bottom
))
1028 while (STREQ (SYMBOL_NAME (*top
), name
))
1030 if (SYMBOL_NAMESPACE (*top
) == namespace)
1038 /* Can't use a binary search or else we found during the binary search that
1039 we should also do a linear search. */
1041 if (do_linear_search
)
1043 for (psym
= start
; psym
< start
+ length
; psym
++)
1045 if (namespace == SYMBOL_NAMESPACE (*psym
))
1047 if (SYMBOL_MATCHES_NAME (*psym
, name
))
1058 /* Look up a type named NAME in the struct_namespace. The type returned
1059 must not be opaque -- i.e., must have at least one field defined
1061 This code was modelled on lookup_symbol -- the parts not relevant to looking
1062 up types were just left out. In particular it's assumed here that types
1063 are available in struct_namespace and only at file-static or global blocks. */
1067 lookup_transparent_type (name
)
1070 register struct symbol
*sym
;
1071 register struct symtab
*s
= NULL
;
1072 register struct partial_symtab
*ps
;
1073 struct blockvector
*bv
;
1074 register struct objfile
*objfile
;
1075 register struct block
*block
;
1077 /* Now search all the global symbols. Do the symtab's first, then
1078 check the psymtab's. If a psymtab indicates the existence
1079 of the desired name as a global, then do psymtab-to-symtab
1080 conversion on the fly and return the found symbol. */
1082 ALL_SYMTABS (objfile
, s
)
1084 bv
= BLOCKVECTOR (s
);
1085 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1086 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1087 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1089 return SYMBOL_TYPE (sym
);
1093 ALL_PSYMTABS (objfile
, ps
)
1095 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 1, STRUCT_NAMESPACE
))
1097 s
= PSYMTAB_TO_SYMTAB (ps
);
1098 bv
= BLOCKVECTOR (s
);
1099 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1100 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1103 /* This shouldn't be necessary, but as a last resort
1104 * try looking in the statics even though the psymtab
1105 * claimed the symbol was global. It's possible that
1106 * the psymtab gets it wrong in some cases.
1108 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1109 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1111 error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
1112 %s may be an inlined function, or may be a template function\n\
1113 (if a template, try specifying an instantiation: %s<type>).",
1114 name
, ps
->filename
, name
, name
);
1116 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1117 return SYMBOL_TYPE (sym
);
1121 /* Now search the static file-level symbols.
1122 Not strictly correct, but more useful than an error.
1123 Do the symtab's first, then
1124 check the psymtab's. If a psymtab indicates the existence
1125 of the desired name as a file-level static, then do psymtab-to-symtab
1126 conversion on the fly and return the found symbol.
1129 ALL_SYMTABS (objfile
, s
)
1131 bv
= BLOCKVECTOR (s
);
1132 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1133 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1134 if (sym
&& !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1136 return SYMBOL_TYPE (sym
);
1140 ALL_PSYMTABS (objfile
, ps
)
1142 if (!ps
->readin
&& lookup_partial_symbol (ps
, name
, 0, STRUCT_NAMESPACE
))
1144 s
= PSYMTAB_TO_SYMTAB (ps
);
1145 bv
= BLOCKVECTOR (s
);
1146 block
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
1147 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1150 /* This shouldn't be necessary, but as a last resort
1151 * try looking in the globals even though the psymtab
1152 * claimed the symbol was static. It's possible that
1153 * the psymtab gets it wrong in some cases.
1155 block
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1156 sym
= lookup_block_symbol (block
, name
, STRUCT_NAMESPACE
);
1158 error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
1159 %s may be an inlined function, or may be a template function\n\
1160 (if a template, try specifying an instantiation: %s<type>).",
1161 name
, ps
->filename
, name
, name
);
1163 if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym
)))
1164 return SYMBOL_TYPE (sym
);
1167 return (struct type
*) 0;
1171 /* Find the psymtab containing main(). */
1172 /* FIXME: What about languages without main() or specially linked
1173 executables that have no main() ? */
1175 struct partial_symtab
*
1176 find_main_psymtab ()
1178 register struct partial_symtab
*pst
;
1179 register struct objfile
*objfile
;
1181 ALL_PSYMTABS (objfile
, pst
)
1183 if (lookup_partial_symbol (pst
, "main", 1, VAR_NAMESPACE
))
1191 /* Search BLOCK for symbol NAME in NAMESPACE.
1193 Note that if NAME is the demangled form of a C++ symbol, we will fail
1194 to find a match during the binary search of the non-encoded names, but
1195 for now we don't worry about the slight inefficiency of looking for
1196 a match we'll never find, since it will go pretty quick. Once the
1197 binary search terminates, we drop through and do a straight linear
1198 search on the symbols. Each symbol which is marked as being a C++
1199 symbol (language_cplus set) has both the encoded and non-encoded names
1200 tested for a match. */
1203 lookup_block_symbol (block
, name
, namespace)
1204 register const struct block
*block
;
1206 const namespace_enum
namespace;
1208 register int bot
, top
, inc
;
1209 register struct symbol
*sym
;
1210 register struct symbol
*sym_found
= NULL
;
1211 register int do_linear_search
= 1;
1213 /* If the blocks's symbols were sorted, start with a binary search. */
1215 if (BLOCK_SHOULD_SORT (block
))
1217 /* Reset the linear search flag so if the binary search fails, we
1218 won't do the linear search once unless we find some reason to
1219 do so, such as finding a C++ symbol during the binary search.
1220 Note that for C++ modules, ALL the symbols in a block should
1221 end up marked as C++ symbols. */
1223 do_linear_search
= 0;
1224 top
= BLOCK_NSYMS (block
);
1227 /* Advance BOT to not far before the first symbol whose name is NAME. */
1231 inc
= (top
- bot
+ 1);
1232 /* No need to keep binary searching for the last few bits worth. */
1237 inc
= (inc
>> 1) + bot
;
1238 sym
= BLOCK_SYM (block
, inc
);
1239 if (!do_linear_search
1240 && (SYMBOL_LANGUAGE (sym
) == language_cplus
1241 || SYMBOL_LANGUAGE (sym
) == language_java
1244 do_linear_search
= 1;
1246 if (SYMBOL_NAME (sym
)[0] < name
[0])
1250 else if (SYMBOL_NAME (sym
)[0] > name
[0])
1254 else if (STRCMP (SYMBOL_NAME (sym
), name
) < 0)
1264 /* Now scan forward until we run out of symbols, find one whose
1265 name is greater than NAME, or find one we want. If there is
1266 more than one symbol with the right name and namespace, we
1267 return the first one; I believe it is now impossible for us
1268 to encounter two symbols with the same name and namespace
1269 here, because blocks containing argument symbols are no
1272 top
= BLOCK_NSYMS (block
);
1275 sym
= BLOCK_SYM (block
, bot
);
1276 inc
= SYMBOL_NAME (sym
)[0] - name
[0];
1279 inc
= STRCMP (SYMBOL_NAME (sym
), name
);
1281 if (inc
== 0 && SYMBOL_NAMESPACE (sym
) == namespace)
1293 /* Here if block isn't sorted, or we fail to find a match during the
1294 binary search above. If during the binary search above, we find a
1295 symbol which is a C++ symbol, then we have re-enabled the linear
1296 search flag which was reset when starting the binary search.
1298 This loop is equivalent to the loop above, but hacked greatly for speed.
1300 Note that parameter symbols do not always show up last in the
1301 list; this loop makes sure to take anything else other than
1302 parameter symbols first; it only uses parameter symbols as a
1303 last resort. Note that this only takes up extra computation
1306 if (do_linear_search
)
1308 top
= BLOCK_NSYMS (block
);
1312 sym
= BLOCK_SYM (block
, bot
);
1313 if (SYMBOL_NAMESPACE (sym
) == namespace &&
1314 SYMBOL_MATCHES_NAME (sym
, name
))
1316 /* If SYM has aliases, then use any alias that is active
1317 at the current PC. If no alias is active at the current
1318 PC, then use the main symbol.
1320 ?!? Is checking the current pc correct? Is this routine
1321 ever called to look up a symbol from another context?
1323 FIXME: No, it's not correct. If someone sets a
1324 conditional breakpoint at an address, then the
1325 breakpoint's `struct expression' should refer to the
1326 `struct symbol' appropriate for the breakpoint's
1327 address, which may not be the PC.
1329 Even if it were never called from another context,
1330 it's totally bizarre for lookup_symbol's behavior to
1331 depend on the value of the inferior's current PC. We
1332 should pass in the appropriate PC as well as the
1333 block. The interface to lookup_symbol should change
1334 to require the caller to provide a PC. */
1336 if (SYMBOL_ALIASES (sym
))
1337 sym
= find_active_alias (sym
, read_pc ());
1340 if (SYMBOL_CLASS (sym
) != LOC_ARG
&&
1341 SYMBOL_CLASS (sym
) != LOC_LOCAL_ARG
&&
1342 SYMBOL_CLASS (sym
) != LOC_REF_ARG
&&
1343 SYMBOL_CLASS (sym
) != LOC_REGPARM
&&
1344 SYMBOL_CLASS (sym
) != LOC_REGPARM_ADDR
&&
1345 SYMBOL_CLASS (sym
) != LOC_BASEREG_ARG
)
1353 return (sym_found
); /* Will be NULL if not found. */
1356 /* Given a main symbol SYM and ADDR, search through the alias
1357 list to determine if an alias is active at ADDR and return
1360 If no alias is active, then return SYM. */
1362 static struct symbol
*
1363 find_active_alias (sym
, addr
)
1367 struct range_list
*r
;
1368 struct alias_list
*aliases
;
1370 /* If we have aliases, check them first. */
1371 aliases
= SYMBOL_ALIASES (sym
);
1375 if (!SYMBOL_RANGES (aliases
->sym
))
1376 return aliases
->sym
;
1377 for (r
= SYMBOL_RANGES (aliases
->sym
); r
; r
= r
->next
)
1379 if (r
->start
<= addr
&& r
->end
> addr
)
1380 return aliases
->sym
;
1382 aliases
= aliases
->next
;
1385 /* Nothing found, return the main symbol. */
1390 /* Return the symbol for the function which contains a specified
1391 lexical block, described by a struct block BL. */
1397 while (BLOCK_FUNCTION (bl
) == 0 && BLOCK_SUPERBLOCK (bl
) != 0)
1398 bl
= BLOCK_SUPERBLOCK (bl
);
1400 return BLOCK_FUNCTION (bl
);
1403 /* Find the symtab associated with PC and SECTION. Look through the
1404 psymtabs and read in another symtab if necessary. */
1407 find_pc_sect_symtab (pc
, section
)
1411 register struct block
*b
;
1412 struct blockvector
*bv
;
1413 register struct symtab
*s
= NULL
;
1414 register struct symtab
*best_s
= NULL
;
1415 register struct partial_symtab
*ps
;
1416 register struct objfile
*objfile
;
1417 CORE_ADDR distance
= 0;
1419 /* Search all symtabs for the one whose file contains our address, and which
1420 is the smallest of all the ones containing the address. This is designed
1421 to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000
1422 and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from
1423 0x1000-0x4000, but for address 0x2345 we want to return symtab b.
1425 This happens for native ecoff format, where code from included files
1426 gets its own symtab. The symtab for the included file should have
1427 been read in already via the dependency mechanism.
1428 It might be swifter to create several symtabs with the same name
1429 like xcoff does (I'm not sure).
1431 It also happens for objfiles that have their functions reordered.
1432 For these, the symtab we are looking for is not necessarily read in. */
1434 ALL_SYMTABS (objfile
, s
)
1436 bv
= BLOCKVECTOR (s
);
1437 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
1439 if (BLOCK_START (b
) <= pc
1440 #if defined(HPUXHPPA)
1441 && BLOCK_END (b
) >= pc
1443 && BLOCK_END (b
) > pc
1446 || BLOCK_END (b
) - BLOCK_START (b
) < distance
))
1448 /* For an objfile that has its functions reordered,
1449 find_pc_psymtab will find the proper partial symbol table
1450 and we simply return its corresponding symtab. */
1451 /* In order to better support objfiles that contain both
1452 stabs and coff debugging info, we continue on if a psymtab
1454 if ((objfile
->flags
& OBJF_REORDERED
) && objfile
->psymtabs
)
1456 ps
= find_pc_sect_psymtab (pc
, section
);
1458 return PSYMTAB_TO_SYMTAB (ps
);
1464 for (i
= 0; i
< b
->nsyms
; i
++)
1466 fixup_symbol_section (b
->sym
[i
], objfile
);
1467 if (section
== SYMBOL_BFD_SECTION (b
->sym
[i
]))
1471 continue; /* no symbol in this symtab matches section */
1473 distance
= BLOCK_END (b
) - BLOCK_START (b
);
1482 ps
= find_pc_sect_psymtab (pc
, section
);
1486 /* Might want to error() here (in case symtab is corrupt and
1487 will cause a core dump), but maybe we can successfully
1488 continue, so let's not. */
1489 /* FIXME-32x64: assumes pc fits in a long */
1491 (Internal error: pc 0x%lx in read in psymtab, but not in symtab.)\n",
1492 (unsigned long) pc
);
1493 s
= PSYMTAB_TO_SYMTAB (ps
);
1498 /* Find the symtab associated with PC. Look through the psymtabs and
1499 read in another symtab if necessary. Backward compatibility, no section */
1505 return find_pc_sect_symtab (pc
, find_pc_mapped_section (pc
));
1511 /* Find the closest symbol value (of any sort -- function or variable)
1512 for a given address value. Slow but complete. (currently unused,
1513 mainly because it is too slow. We could fix it if each symtab and
1514 psymtab had contained in it the addresses ranges of each of its
1515 sections, which also would be required to make things like "info
1516 line *0x2345" cause psymtabs to be converted to symtabs). */
1519 find_addr_symbol (addr
, symtabp
, symaddrp
)
1521 struct symtab
**symtabp
;
1522 CORE_ADDR
*symaddrp
;
1524 struct symtab
*symtab
, *best_symtab
;
1525 struct objfile
*objfile
;
1526 register int bot
, top
;
1527 register struct symbol
*sym
;
1528 register CORE_ADDR sym_addr
;
1529 struct block
*block
;
1532 /* Info on best symbol seen so far */
1534 register CORE_ADDR best_sym_addr
= 0;
1535 struct symbol
*best_sym
= 0;
1537 /* FIXME -- we should pull in all the psymtabs, too! */
1538 ALL_SYMTABS (objfile
, symtab
)
1540 /* Search the global and static blocks in this symtab for
1541 the closest symbol-address to the desired address. */
1543 for (blocknum
= GLOBAL_BLOCK
; blocknum
<= STATIC_BLOCK
; blocknum
++)
1546 block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab
), blocknum
);
1547 top
= BLOCK_NSYMS (block
);
1548 for (bot
= 0; bot
< top
; bot
++)
1550 sym
= BLOCK_SYM (block
, bot
);
1551 switch (SYMBOL_CLASS (sym
))
1555 sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
1559 sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
1560 /* An indirect symbol really lives at *sym_addr,
1561 * so an indirection needs to be done.
1562 * However, I am leaving this commented out because it's
1563 * expensive, and it's possible that symbolization
1564 * could be done without an active process (in
1565 * case this read_memory will fail). RT
1566 sym_addr = read_memory_unsigned_integer
1567 (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
1572 sym_addr
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
1579 if (sym_addr
<= addr
)
1580 if (sym_addr
> best_sym_addr
)
1582 /* Quit if we found an exact match. */
1584 best_sym_addr
= sym_addr
;
1585 best_symtab
= symtab
;
1586 if (sym_addr
== addr
)
1595 *symtabp
= best_symtab
;
1597 *symaddrp
= best_sym_addr
;
1602 /* Find the source file and line number for a given PC value and section.
1603 Return a structure containing a symtab pointer, a line number,
1604 and a pc range for the entire source line.
1605 The value's .pc field is NOT the specified pc.
1606 NOTCURRENT nonzero means, if specified pc is on a line boundary,
1607 use the line that ends there. Otherwise, in that case, the line
1608 that begins there is used. */
1610 /* The big complication here is that a line may start in one file, and end just
1611 before the start of another file. This usually occurs when you #include
1612 code in the middle of a subroutine. To properly find the end of a line's PC
1613 range, we must search all symtabs associated with this compilation unit, and
1614 find the one whose first PC is closer than that of the next line in this
1617 /* If it's worth the effort, we could be using a binary search. */
1619 struct symtab_and_line
1620 find_pc_sect_line (pc
, section
, notcurrent
)
1622 struct sec
*section
;
1626 register struct linetable
*l
;
1629 register struct linetable_entry
*item
;
1630 struct symtab_and_line val
;
1631 struct blockvector
*bv
;
1632 struct minimal_symbol
*msymbol
;
1633 struct minimal_symbol
*mfunsym
;
1635 /* Info on best line seen so far, and where it starts, and its file. */
1637 struct linetable_entry
*best
= NULL
;
1638 CORE_ADDR best_end
= 0;
1639 struct symtab
*best_symtab
= 0;
1641 /* Store here the first line number
1642 of a file which contains the line at the smallest pc after PC.
1643 If we don't find a line whose range contains PC,
1644 we will use a line one less than this,
1645 with a range from the start of that file to the first line's pc. */
1646 struct linetable_entry
*alt
= NULL
;
1647 struct symtab
*alt_symtab
= 0;
1649 /* Info on best line seen in this file. */
1651 struct linetable_entry
*prev
;
1653 /* If this pc is not from the current frame,
1654 it is the address of the end of a call instruction.
1655 Quite likely that is the start of the following statement.
1656 But what we want is the statement containing the instruction.
1657 Fudge the pc to make sure we get that. */
1659 INIT_SAL (&val
); /* initialize to zeroes */
1664 /* elz: added this because this function returned the wrong
1665 information if the pc belongs to a stub (import/export)
1666 to call a shlib function. This stub would be anywhere between
1667 two functions in the target, and the line info was erroneously
1668 taken to be the one of the line before the pc.
1670 /* RT: Further explanation:
1672 * We have stubs (trampolines) inserted between procedures.
1674 * Example: "shr1" exists in a shared library, and a "shr1" stub also
1675 * exists in the main image.
1677 * In the minimal symbol table, we have a bunch of symbols
1678 * sorted by start address. The stubs are marked as "trampoline",
1679 * the others appear as text. E.g.:
1681 * Minimal symbol table for main image
1682 * main: code for main (text symbol)
1683 * shr1: stub (trampoline symbol)
1684 * foo: code for foo (text symbol)
1686 * Minimal symbol table for "shr1" image:
1688 * shr1: code for shr1 (text symbol)
1691 * So the code below is trying to detect if we are in the stub
1692 * ("shr1" stub), and if so, find the real code ("shr1" trampoline),
1693 * and if found, do the symbolization from the real-code address
1694 * rather than the stub address.
1696 * Assumptions being made about the minimal symbol table:
1697 * 1. lookup_minimal_symbol_by_pc() will return a trampoline only
1698 * if we're really in the trampoline. If we're beyond it (say
1699 * we're in "foo" in the above example), it'll have a closer
1700 * symbol (the "foo" text symbol for example) and will not
1701 * return the trampoline.
1702 * 2. lookup_minimal_symbol_text() will find a real text symbol
1703 * corresponding to the trampoline, and whose address will
1704 * be different than the trampoline address. I put in a sanity
1705 * check for the address being the same, to avoid an
1706 * infinite recursion.
1708 msymbol
= lookup_minimal_symbol_by_pc (pc
);
1709 if (msymbol
!= NULL
)
1710 if (MSYMBOL_TYPE (msymbol
) == mst_solib_trampoline
)
1712 mfunsym
= lookup_minimal_symbol_text (SYMBOL_NAME (msymbol
), NULL
, NULL
);
1713 if (mfunsym
== NULL
)
1714 /* I eliminated this warning since it is coming out
1715 * in the following situation:
1716 * gdb shmain // test program with shared libraries
1717 * (gdb) break shr1 // function in shared lib
1718 * Warning: In stub for ...
1719 * In the above situation, the shared lib is not loaded yet,
1720 * so of course we can't find the real func/line info,
1721 * but the "break" still works, and the warning is annoying.
1722 * So I commented out the warning. RT */
1723 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1725 else if (SYMBOL_VALUE (mfunsym
) == SYMBOL_VALUE (msymbol
))
1726 /* Avoid infinite recursion */
1727 /* See above comment about why warning is commented out */
1728 /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ;
1731 return find_pc_line (SYMBOL_VALUE (mfunsym
), 0);
1735 s
= find_pc_sect_symtab (pc
, section
);
1738 /* if no symbol information, return previous pc */
1745 bv
= BLOCKVECTOR (s
);
1747 /* Look at all the symtabs that share this blockvector.
1748 They all have the same apriori range, that we found was right;
1749 but they have different line tables. */
1751 for (; s
&& BLOCKVECTOR (s
) == bv
; s
= s
->next
)
1753 /* Find the best line in this symtab. */
1760 /* I think len can be zero if the symtab lacks line numbers
1761 (e.g. gcc -g1). (Either that or the LINETABLE is NULL;
1762 I'm not sure which, and maybe it depends on the symbol
1768 item
= l
->item
; /* Get first line info */
1770 /* Is this file's first line closer than the first lines of other files?
1771 If so, record this file, and its first line, as best alternate. */
1772 if (item
->pc
> pc
&& (!alt
|| item
->pc
< alt
->pc
))
1778 for (i
= 0; i
< len
; i
++, item
++)
1780 /* Leave prev pointing to the linetable entry for the last line
1781 that started at or before PC. */
1788 /* At this point, prev points at the line whose start addr is <= pc, and
1789 item points at the next line. If we ran off the end of the linetable
1790 (pc >= start of the last line), then prev == item. If pc < start of
1791 the first line, prev will not be set. */
1793 /* Is this file's best line closer than the best in the other files?
1794 If so, record this file, and its best line, as best so far. */
1796 if (prev
&& (!best
|| prev
->pc
> best
->pc
))
1800 /* If another line is in the linetable, and its PC is closer
1801 than the best_end we currently have, take it as best_end. */
1802 if (i
< len
&& (best_end
== 0 || best_end
> item
->pc
))
1803 best_end
= item
->pc
;
1810 { /* If we didn't find any line # info, just
1816 val
.symtab
= alt_symtab
;
1817 val
.line
= alt
->line
- 1;
1819 /* Don't return line 0, that means that we didn't find the line. */
1823 val
.pc
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1829 val
.symtab
= best_symtab
;
1830 val
.line
= best
->line
;
1832 if (best_end
&& (!alt
|| best_end
< alt
->pc
))
1837 val
.end
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
1839 val
.section
= section
;
1843 /* Backward compatibility (no section) */
1845 struct symtab_and_line
1846 find_pc_line (pc
, notcurrent
)
1852 section
= find_pc_overlay (pc
);
1853 if (pc_in_unmapped_range (pc
, section
))
1854 pc
= overlay_mapped_address (pc
, section
);
1855 return find_pc_sect_line (pc
, section
, notcurrent
);
1859 static struct symtab
*find_line_symtab
PARAMS ((struct symtab
*, int,
1862 /* Find line number LINE in any symtab whose name is the same as
1865 If found, return the symtab that contains the linetable in which it was
1866 found, set *INDEX to the index in the linetable of the best entry
1867 found, and set *EXACT_MATCH nonzero if the value returned is an
1870 If not found, return NULL. */
1872 static struct symtab
*
1873 find_line_symtab (symtab
, line
, index
, exact_match
)
1874 struct symtab
*symtab
;
1881 /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE
1885 struct linetable
*best_linetable
;
1886 struct symtab
*best_symtab
;
1888 /* First try looking it up in the given symtab. */
1889 best_linetable
= LINETABLE (symtab
);
1890 best_symtab
= symtab
;
1891 best_index
= find_line_common (best_linetable
, line
, &exact
);
1892 if (best_index
< 0 || !exact
)
1894 /* Didn't find an exact match. So we better keep looking for
1895 another symtab with the same name. In the case of xcoff,
1896 multiple csects for one source file (produced by IBM's FORTRAN
1897 compiler) produce multiple symtabs (this is unavoidable
1898 assuming csects can be at arbitrary places in memory and that
1899 the GLOBAL_BLOCK of a symtab has a begin and end address). */
1901 /* BEST is the smallest linenumber > LINE so far seen,
1902 or 0 if none has been seen so far.
1903 BEST_INDEX and BEST_LINETABLE identify the item for it. */
1906 struct objfile
*objfile
;
1909 if (best_index
>= 0)
1910 best
= best_linetable
->item
[best_index
].line
;
1914 ALL_SYMTABS (objfile
, s
)
1916 struct linetable
*l
;
1919 if (!STREQ (symtab
->filename
, s
->filename
))
1922 ind
= find_line_common (l
, line
, &exact
);
1932 if (best
== 0 || l
->item
[ind
].line
< best
)
1934 best
= l
->item
[ind
].line
;
1947 *index
= best_index
;
1949 *exact_match
= exact
;
1954 /* Set the PC value for a given source file and line number and return true.
1955 Returns zero for invalid line number (and sets the PC to 0).
1956 The source file is specified with a struct symtab. */
1959 find_line_pc (symtab
, line
, pc
)
1960 struct symtab
*symtab
;
1964 struct linetable
*l
;
1971 symtab
= find_line_symtab (symtab
, line
, &ind
, NULL
);
1974 l
= LINETABLE (symtab
);
1975 *pc
= l
->item
[ind
].pc
;
1982 /* Find the range of pc values in a line.
1983 Store the starting pc of the line into *STARTPTR
1984 and the ending pc (start of next line) into *ENDPTR.
1985 Returns 1 to indicate success.
1986 Returns 0 if could not find the specified line. */
1989 find_line_pc_range (sal
, startptr
, endptr
)
1990 struct symtab_and_line sal
;
1991 CORE_ADDR
*startptr
, *endptr
;
1993 CORE_ADDR startaddr
;
1994 struct symtab_and_line found_sal
;
1997 if (startaddr
== 0 && !find_line_pc (sal
.symtab
, sal
.line
, &startaddr
))
2000 /* This whole function is based on address. For example, if line 10 has
2001 two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
2002 "info line *0x123" should say the line goes from 0x100 to 0x200
2003 and "info line *0x355" should say the line goes from 0x300 to 0x400.
2004 This also insures that we never give a range like "starts at 0x134
2005 and ends at 0x12c". */
2007 found_sal
= find_pc_sect_line (startaddr
, sal
.section
, 0);
2008 if (found_sal
.line
!= sal
.line
)
2010 /* The specified line (sal) has zero bytes. */
2011 *startptr
= found_sal
.pc
;
2012 *endptr
= found_sal
.pc
;
2016 *startptr
= found_sal
.pc
;
2017 *endptr
= found_sal
.end
;
2022 /* Given a line table and a line number, return the index into the line
2023 table for the pc of the nearest line whose number is >= the specified one.
2024 Return -1 if none is found. The value is >= 0 if it is an index.
2026 Set *EXACT_MATCH nonzero if the value returned is an exact match. */
2029 find_line_common (l
, lineno
, exact_match
)
2030 register struct linetable
*l
;
2031 register int lineno
;
2037 /* BEST is the smallest linenumber > LINENO so far seen,
2038 or 0 if none has been seen so far.
2039 BEST_INDEX identifies the item for it. */
2041 int best_index
= -1;
2050 for (i
= 0; i
< len
; i
++)
2052 register struct linetable_entry
*item
= &(l
->item
[i
]);
2054 if (item
->line
== lineno
)
2056 /* Return the first (lowest address) entry which matches. */
2061 if (item
->line
> lineno
&& (best
== 0 || item
->line
< best
))
2068 /* If we got here, we didn't get an exact match. */
2075 find_pc_line_pc_range (pc
, startptr
, endptr
)
2077 CORE_ADDR
*startptr
, *endptr
;
2079 struct symtab_and_line sal
;
2080 sal
= find_pc_line (pc
, 0);
2083 return sal
.symtab
!= 0;
2086 /* Given a function symbol SYM, find the symtab and line for the start
2088 If the argument FUNFIRSTLINE is nonzero, we want the first line
2089 of real code inside the function. */
2091 static struct symtab_and_line
2092 find_function_start_sal
PARAMS ((struct symbol
* sym
, int));
2094 static struct symtab_and_line
2095 find_function_start_sal (sym
, funfirstline
)
2100 struct symtab_and_line sal
;
2102 pc
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
2103 fixup_symbol_section (sym
, NULL
);
2105 { /* skip "first line" of function (which is actually its prologue) */
2106 asection
*section
= SYMBOL_BFD_SECTION (sym
);
2107 /* If function is in an unmapped overlay, use its unmapped LMA
2108 address, so that SKIP_PROLOGUE has something unique to work on */
2109 if (section_is_overlay (section
) &&
2110 !section_is_mapped (section
))
2111 pc
= overlay_unmapped_address (pc
, section
);
2113 pc
+= FUNCTION_START_OFFSET
;
2114 pc
= SKIP_PROLOGUE (pc
);
2116 /* For overlays, map pc back into its mapped VMA range */
2117 pc
= overlay_mapped_address (pc
, section
);
2119 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2121 #ifdef PROLOGUE_FIRSTLINE_OVERLAP
2122 /* Convex: no need to suppress code on first line, if any */
2125 /* Check if SKIP_PROLOGUE left us in mid-line, and the next
2126 line is still part of the same function. */
2128 && BLOCK_START (SYMBOL_BLOCK_VALUE (sym
)) <= sal
.end
2129 && sal
.end
< BLOCK_END (SYMBOL_BLOCK_VALUE (sym
)))
2131 /* First pc of next line */
2133 /* Recalculate the line number (might not be N+1). */
2134 sal
= find_pc_sect_line (pc
, SYMBOL_BFD_SECTION (sym
), 0);
2142 /* If P is of the form "operator[ \t]+..." where `...' is
2143 some legitimate operator text, return a pointer to the
2144 beginning of the substring of the operator text.
2145 Otherwise, return "". */
2147 operator_chars (p
, end
)
2152 if (strncmp (p
, "operator", 8))
2156 /* Don't get faked out by `operator' being part of a longer
2158 if (isalpha (*p
) || *p
== '_' || *p
== '$' || *p
== '\0')
2161 /* Allow some whitespace between `operator' and the operator symbol. */
2162 while (*p
== ' ' || *p
== '\t')
2165 /* Recognize 'operator TYPENAME'. */
2167 if (isalpha (*p
) || *p
== '_' || *p
== '$')
2169 register char *q
= p
+ 1;
2170 while (isalnum (*q
) || *q
== '_' || *q
== '$')
2195 if (p
[1] == '=' || p
[1] == p
[0])
2206 error ("`operator ()' must be specified without whitespace in `()'");
2211 error ("`operator ?:' must be specified without whitespace in `?:'");
2216 error ("`operator []' must be specified without whitespace in `[]'");
2220 error ("`operator %s' not supported", p
);
2227 /* Return the number of methods described for TYPE, including the
2228 methods from types it derives from. This can't be done in the symbol
2229 reader because the type of the baseclass might still be stubbed
2230 when the definition of the derived class is parsed. */
2232 static int total_number_of_methods
PARAMS ((struct type
* type
));
2235 total_number_of_methods (type
)
2241 CHECK_TYPEDEF (type
);
2242 if (TYPE_CPLUS_SPECIFIC (type
) == NULL
)
2244 count
= TYPE_NFN_FIELDS_TOTAL (type
);
2246 for (n
= 0; n
< TYPE_N_BASECLASSES (type
); n
++)
2247 count
+= total_number_of_methods (TYPE_BASECLASS (type
, n
));
2252 /* Recursive helper function for decode_line_1.
2253 Look for methods named NAME in type T.
2254 Return number of matches.
2255 Put matches in SYM_ARR, which should have been allocated with
2256 a size of total_number_of_methods (T) * sizeof (struct symbol *).
2257 Note that this function is g++ specific. */
2260 find_methods (t
, name
, sym_arr
)
2263 struct symbol
**sym_arr
;
2267 struct symbol
*sym_class
;
2268 char *class_name
= type_name_no_tag (t
);
2270 /* Ignore this class if it doesn't have a name. This is ugly, but
2271 unless we figure out how to get the physname without the name of
2272 the class, then the loop can't do any good. */
2274 && (sym_class
= lookup_symbol (class_name
,
2275 (struct block
*) NULL
,
2278 (struct symtab
**) NULL
)))
2282 /* FIXME: Shouldn't this just be CHECK_TYPEDEF (t)? */
2283 t
= SYMBOL_TYPE (sym_class
);
2285 /* Loop over each method name. At this level, all overloads of a name
2286 are counted as a single name. There is an inner loop which loops over
2289 for (method_counter
= TYPE_NFN_FIELDS (t
) - 1;
2290 method_counter
>= 0;
2294 char *method_name
= TYPE_FN_FIELDLIST_NAME (t
, method_counter
);
2295 char dem_opname
[64];
2297 if (strncmp (method_name
, "__", 2) == 0 ||
2298 strncmp (method_name
, "op", 2) == 0 ||
2299 strncmp (method_name
, "type", 4) == 0)
2301 if (cplus_demangle_opname (method_name
, dem_opname
, DMGL_ANSI
))
2302 method_name
= dem_opname
;
2303 else if (cplus_demangle_opname (method_name
, dem_opname
, 0))
2304 method_name
= dem_opname
;
2307 if (STREQ (name
, method_name
))
2308 /* Find all the overloaded methods with that name. */
2309 for (field_counter
= TYPE_FN_FIELDLIST_LENGTH (t
, method_counter
) - 1;
2316 f
= TYPE_FN_FIELDLIST1 (t
, method_counter
);
2318 if (TYPE_FN_FIELD_STUB (f
, field_counter
))
2322 tmp_name
= gdb_mangle_name (t
,
2325 phys_name
= alloca (strlen (tmp_name
) + 1);
2326 strcpy (phys_name
, tmp_name
);
2330 phys_name
= TYPE_FN_FIELD_PHYSNAME (f
, field_counter
);
2332 /* Destructor is handled by caller, dont add it to the list */
2333 if (DESTRUCTOR_PREFIX_P (phys_name
))
2336 sym_arr
[i1
] = lookup_symbol (phys_name
,
2337 NULL
, VAR_NAMESPACE
,
2339 (struct symtab
**) NULL
);
2344 /* This error message gets printed, but the method
2345 still seems to be found
2346 fputs_filtered("(Cannot find method ", gdb_stdout);
2347 fprintf_symbol_filtered (gdb_stdout, phys_name,
2349 DMGL_PARAMS | DMGL_ANSI);
2350 fputs_filtered(" - possibly inlined.)\n", gdb_stdout);
2357 /* Only search baseclasses if there is no match yet, since names in
2358 derived classes override those in baseclasses.
2360 FIXME: The above is not true; it is only true of member functions
2361 if they have the same number of arguments (??? - section 13.1 of the
2362 ARM says the function members are not in the same scope but doesn't
2363 really spell out the rules in a way I understand. In any case, if
2364 the number of arguments differ this is a case in which we can overload
2365 rather than hiding without any problem, and gcc 2.4.5 does overload
2366 rather than hiding in this case). */
2369 for (ibase
= 0; ibase
< TYPE_N_BASECLASSES (t
); ibase
++)
2370 i1
+= find_methods (TYPE_BASECLASS (t
, ibase
), name
, sym_arr
+ i1
);
2375 /* Helper function for decode_line_1.
2376 Build a canonical line spec in CANONICAL if it is non-NULL and if
2377 the SAL has a symtab.
2378 If SYMNAME is non-NULL the canonical line spec is `filename:symname'.
2379 If SYMNAME is NULL the line number from SAL is used and the canonical
2380 line spec is `filename:linenum'. */
2383 build_canonical_line_spec (sal
, symname
, canonical
)
2384 struct symtab_and_line
*sal
;
2388 char **canonical_arr
;
2389 char *canonical_name
;
2391 struct symtab
*s
= sal
->symtab
;
2393 if (s
== (struct symtab
*) NULL
2394 || s
->filename
== (char *) NULL
2395 || canonical
== (char ***) NULL
)
2398 canonical_arr
= (char **) xmalloc (sizeof (char *));
2399 *canonical
= canonical_arr
;
2401 filename
= s
->filename
;
2402 if (symname
!= NULL
)
2404 canonical_name
= xmalloc (strlen (filename
) + strlen (symname
) + 2);
2405 sprintf (canonical_name
, "%s:%s", filename
, symname
);
2409 canonical_name
= xmalloc (strlen (filename
) + 30);
2410 sprintf (canonical_name
, "%s:%d", filename
, sal
->line
);
2412 canonical_arr
[0] = canonical_name
;
2415 /* Parse a string that specifies a line number.
2416 Pass the address of a char * variable; that variable will be
2417 advanced over the characters actually parsed.
2421 LINENUM -- that line number in current file. PC returned is 0.
2422 FILE:LINENUM -- that line in that file. PC returned is 0.
2423 FUNCTION -- line number of openbrace of that function.
2424 PC returned is the start of the function.
2425 VARIABLE -- line number of definition of that variable.
2427 FILE:FUNCTION -- likewise, but prefer functions in that file.
2428 *EXPR -- line in which address EXPR appears.
2430 This may all be followed by an "if EXPR", which we ignore.
2432 FUNCTION may be an undebuggable function found in minimal symbol table.
2434 If the argument FUNFIRSTLINE is nonzero, we want the first line
2435 of real code inside a function when a function is specified, and it is
2436 not OK to specify a variable or type to get its line number.
2438 DEFAULT_SYMTAB specifies the file to use if none is specified.
2439 It defaults to current_source_symtab.
2440 DEFAULT_LINE specifies the line number to use for relative
2441 line numbers (that start with signs). Defaults to current_source_line.
2442 If CANONICAL is non-NULL, store an array of strings containing the canonical
2443 line specs there if necessary. Currently overloaded member functions and
2444 line numbers or static functions without a filename yield a canonical
2445 line spec. The array and the line spec strings are allocated on the heap,
2446 it is the callers responsibility to free them.
2448 Note that it is possible to return zero for the symtab
2449 if no file is validly specified. Callers must check that.
2450 Also, the line number returned may be invalid. */
2452 /* We allow single quotes in various places. This is a hideous
2453 kludge, which exists because the completer can't yet deal with the
2454 lack of single quotes. FIXME: write a linespec_completer which we
2455 can use as appropriate instead of make_symbol_completion_list. */
2457 struct symtabs_and_lines
2458 decode_line_1 (argptr
, funfirstline
, default_symtab
, default_line
, canonical
)
2461 struct symtab
*default_symtab
;
2465 struct symtabs_and_lines values
;
2466 #ifdef HPPA_COMPILER_BUG
2467 /* FIXME: The native HP 9000/700 compiler has a bug which appears
2468 when optimizing this file with target i960-vxworks. I haven't
2469 been able to construct a simple test case. The problem is that
2470 in the second call to SKIP_PROLOGUE below, the compiler somehow
2471 does not realize that the statement val = find_pc_line (...) will
2472 change the values of the fields of val. It extracts the elements
2473 into registers at the top of the block, and does not update the
2474 registers after the call to find_pc_line. You can check this by
2475 inserting a printf at the end of find_pc_line to show what values
2476 it is returning for val.pc and val.end and another printf after
2477 the call to see what values the function actually got (remember,
2478 this is compiling with cc -O, with this patch removed). You can
2479 also examine the assembly listing: search for the second call to
2480 skip_prologue; the LDO statement before the next call to
2481 find_pc_line loads the address of the structure which
2482 find_pc_line will return; if there is a LDW just before the LDO,
2483 which fetches an element of the structure, then the compiler
2486 Setting val to volatile avoids the problem. We must undef
2487 volatile, because the HPPA native compiler does not define
2488 __STDC__, although it does understand volatile, and so volatile
2489 will have been defined away in defs.h. */
2491 volatile struct symtab_and_line val
;
2492 #define volatile /*nothing */
2494 struct symtab_and_line val
;
2496 register char *p
, *p1
;
2497 char *q
, *pp
, *ii
, *p2
;
2501 register struct symtab
*s
;
2503 register struct symbol
*sym
;
2504 /* The symtab that SYM was found in. */
2505 struct symtab
*sym_symtab
;
2507 register CORE_ADDR pc
;
2508 register struct minimal_symbol
*msymbol
;
2510 struct symbol
*sym_class
;
2513 int is_quote_enclosed
;
2517 struct symbol
**sym_arr
;
2519 char *saved_arg
= *argptr
;
2520 extern char *gdb_completer_quote_characters
;
2522 INIT_SAL (&val
); /* initialize to zeroes */
2524 /* Defaults have defaults. */
2526 if (default_symtab
== 0)
2528 default_symtab
= current_source_symtab
;
2529 default_line
= current_source_line
;
2532 /* See if arg is *PC */
2534 if (**argptr
== '*')
2537 pc
= parse_and_eval_address_1 (argptr
);
2539 values
.sals
= (struct symtab_and_line
*)
2540 xmalloc (sizeof (struct symtab_and_line
));
2543 values
.sals
[0] = find_pc_line (pc
, 0);
2544 values
.sals
[0].pc
= pc
;
2545 values
.sals
[0].section
= find_pc_overlay (pc
);
2550 /* 'has_if' is for the syntax:
2551 * (gdb) break foo if (a==b)
2553 if ((ii
= strstr (*argptr
, " if ")) != NULL
||
2554 (ii
= strstr (*argptr
, "\tif ")) != NULL
||
2555 (ii
= strstr (*argptr
, " if\t")) != NULL
||
2556 (ii
= strstr (*argptr
, "\tif\t")) != NULL
||
2557 (ii
= strstr (*argptr
, " if(")) != NULL
||
2558 (ii
= strstr (*argptr
, "\tif( ")) != NULL
)
2560 /* Temporarily zap out "if (condition)" to not
2561 * confuse the parenthesis-checking code below.
2562 * This is undone below. Do not change ii!!
2569 /* Set various flags.
2570 * 'has_parens' is important for overload checking, where
2571 * we allow things like:
2572 * (gdb) break c::f(int)
2575 /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
2577 is_quoted
= (**argptr
2578 && strchr (gdb_completer_quote_characters
, **argptr
) != NULL
);
2580 has_parens
= ((pp
= strchr (*argptr
, '(')) != NULL
2581 && (pp
= strchr (pp
, ')')) != NULL
);
2583 /* Now that we're safely past the has_parens check,
2584 * put back " if (condition)" so outer layers can see it
2589 /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM
2590 and we must isolate the first half. Outer layers will call again later
2591 for the second half */
2592 if ((ii
= strchr (*argptr
, ',')) != NULL
)
2594 /* Temporarily zap out second half to not
2595 * confuse the code below.
2596 * This is undone below. Do not change ii!!
2603 /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
2604 /* May also be CLASS::MEMBER, or NAMESPACE::NAME */
2605 /* Look for ':', but ignore inside of <> */
2611 is_quote_enclosed
= 1;
2615 is_quote_enclosed
= 0;
2620 char *temp_end
= find_template_name_end (p
);
2622 error ("malformed template specification in command");
2625 /* Check for the end of the first half of the linespec. End of line,
2626 a tab, a double colon or the last single colon, or a space. But
2627 if enclosed in double quotes we do not break on enclosed spaces */
2631 && ((p
[1] == ':') || (strchr (p
+ 1, ':') == NULL
)))
2632 || ((p
[0] == ' ') && !is_quote_enclosed
))
2634 if (p
[0] == '.' && strchr (p
, ':') == NULL
) /* Java qualified method. */
2636 /* Find the *last* '.', since the others are package qualifiers. */
2637 for (p1
= p
; *p1
; p1
++)
2645 while (p
[0] == ' ' || p
[0] == '\t')
2647 /* if the closing double quote was left at the end, remove it */
2648 if (is_quote_enclosed
&& ((pp
= strchr (p
, '"')) != NULL
))
2652 /* Now that we've safely parsed the first half,
2653 * put back ',' so outer layers can see it
2658 if ((p
[0] == ':' || p
[0] == '.') && !has_parens
)
2663 *argptr
= *argptr
+ 1;
2664 if (p
[0] == '.' || p
[1] == ':')
2666 char *saved_arg2
= *argptr
;
2668 /* First check for "global" namespace specification,
2669 of the form "::foo". If found, skip over the colons
2670 and jump to normal symbol processing */
2671 if ((*argptr
== p
) || (p
[-1] == ' ') || (p
[-1] == '\t'))
2674 /* We have what looks like a class or namespace
2675 scope specification (A::B), possibly with many
2676 levels of namespaces or classes (A::B::C::D).
2678 Some versions of the HP ANSI C++ compiler (as also possibly
2679 other compilers) generate class/function/member names with
2680 embedded double-colons if they are inside namespaces. To
2681 handle this, we loop a few times, considering larger and
2682 larger prefixes of the string as though they were single
2683 symbols. So, if the initially supplied string is
2684 A::B::C::D::foo, we have to look up "A", then "A::B",
2685 then "A::B::C", then "A::B::C::D", and finally
2686 "A::B::C::D::foo" as single, monolithic symbols, because
2687 A, B, C or D may be namespaces.
2689 Note that namespaces can nest only inside other
2690 namespaces, and not inside classes. So we need only
2691 consider *prefixes* of the string; there is no need to look up
2692 "B::C" separately as a symbol in the previous example. */
2694 p2
= p
; /* save for restart */
2697 /* Extract the class name. */
2699 while (p
!= *argptr
&& p
[-1] == ' ')
2701 copy
= (char *) alloca (p
- *argptr
+ 1);
2702 memcpy (copy
, *argptr
, p
- *argptr
);
2703 copy
[p
- *argptr
] = 0;
2705 /* Discard the class name from the arg. */
2706 p
= p1
+ (p1
[0] == ':' ? 2 : 1);
2707 while (*p
== ' ' || *p
== '\t')
2711 sym_class
= lookup_symbol (copy
, 0, STRUCT_NAMESPACE
, 0,
2712 (struct symtab
**) NULL
);
2715 (t
= check_typedef (SYMBOL_TYPE (sym_class
)),
2716 (TYPE_CODE (t
) == TYPE_CODE_STRUCT
2717 || TYPE_CODE (t
) == TYPE_CODE_UNION
)))
2719 /* Arg token is not digits => try it as a function name
2720 Find the next token(everything up to end or next blank). */
2722 && strchr (gdb_completer_quote_characters
, **argptr
) != NULL
)
2724 p
= skip_quoted (*argptr
);
2725 *argptr
= *argptr
+ 1;
2730 while (*p
&& *p
!= ' ' && *p
!= '\t' && *p
!= ',' && *p
!= ':')
2734 q = operator_chars (*argptr, &q1);
2738 char *tmp = alloca (q1 - q + 1);
2739 memcpy (tmp, q, q1 - q);
2741 opname = cplus_mangle_opname (tmp, DMGL_ANSI);
2745 printf_filtered ("no mangling for \"%s\"\n", tmp);
2746 cplusplus_hint (saved_arg);
2747 return_to_top_level (RETURN_ERROR);
2749 copy = (char*) alloca (3 + strlen(opname));
2750 sprintf (copy, "__%s", opname);
2756 copy
= (char *) alloca (p
- *argptr
+ 1);
2757 memcpy (copy
, *argptr
, p
- *argptr
);
2758 copy
[p
- *argptr
] = '\0';
2760 && copy
[p
- *argptr
- 1]
2761 && strchr (gdb_completer_quote_characters
,
2762 copy
[p
- *argptr
- 1]) != NULL
)
2763 copy
[p
- *argptr
- 1] = '\0';
2766 /* no line number may be specified */
2767 while (*p
== ' ' || *p
== '\t')
2772 i1
= 0; /* counter for the symbol array */
2773 sym_arr
= (struct symbol
**) alloca (total_number_of_methods (t
)
2774 * sizeof (struct symbol
*));
2776 if (destructor_name_p (copy
, t
))
2778 /* Destructors are a special case. */
2779 int m_index
, f_index
;
2781 if (get_destructor_fn_field (t
, &m_index
, &f_index
))
2783 struct fn_field
*f
= TYPE_FN_FIELDLIST1 (t
, m_index
);
2786 lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f
, f_index
),
2787 NULL
, VAR_NAMESPACE
, (int *) NULL
,
2788 (struct symtab
**) NULL
);
2794 i1
= find_methods (t
, copy
, sym_arr
);
2797 /* There is exactly one field with that name. */
2800 if (sym
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
)
2802 values
.sals
= (struct symtab_and_line
*)
2803 xmalloc (sizeof (struct symtab_and_line
));
2805 values
.sals
[0] = find_function_start_sal (sym
,
2816 /* There is more than one field with that name
2817 (overloaded). Ask the user which one to use. */
2818 return decode_line_2 (sym_arr
, i1
, funfirstline
, canonical
);
2824 if (OPNAME_PREFIX_P (copy
))
2826 tmp
= (char *) alloca (strlen (copy
+ 3) + 9);
2827 strcpy (tmp
, "operator ");
2828 strcat (tmp
, copy
+ 3);
2835 ("the class `%s' does not have destructor defined\n",
2836 SYMBOL_SOURCE_NAME (sym_class
));
2839 ("the class %s does not have any method named %s\n",
2840 SYMBOL_SOURCE_NAME (sym_class
), tmp
);
2841 cplusplus_hint (saved_arg
);
2842 return_to_top_level (RETURN_ERROR
);
2846 /* Move pointer up to next possible class/namespace token */
2847 p
= p2
+ 1; /* restart with old value +1 */
2848 /* Move pointer ahead to next double-colon */
2849 while (*p
&& (p
[0] != ' ') && (p
[0] != '\t') && (p
[0] != '\''))
2853 temp_end
= find_template_name_end (p
);
2855 error ("malformed template specification in command");
2858 else if ((p
[0] == ':') && (p
[1] == ':'))
2859 break; /* found double-colon */
2865 break; /* out of the while (1) */
2867 p2
= p
; /* save restart for next time around */
2868 *argptr
= saved_arg2
; /* restore argptr */
2871 /* Last chance attempt -- check entire name as a symbol */
2872 /* Use "copy" in preparation for jumping out of this block,
2873 to be consistent with usage following the jump target */
2874 copy
= (char *) alloca (p
- saved_arg2
+ 1);
2875 memcpy (copy
, saved_arg2
, p
- saved_arg2
);
2876 /* Note: if is_quoted should be true, we snuff out quote here anyway */
2877 copy
[p
- saved_arg2
] = '\000';
2878 /* Set argptr to skip over the name */
2879 *argptr
= (*p
== '\'') ? p
+ 1 : p
;
2880 /* Look up entire name */
2881 sym
= lookup_symbol (copy
, 0, VAR_NAMESPACE
, 0, &sym_symtab
);
2882 s
= (struct symtab
*) 0;
2883 /* Prepare to jump: restore the " if (condition)" so outer layers see it */
2884 /* Symbol was found --> jump to normal symbol processing.
2885 Code following "symbol_found" expects "copy" to have the
2886 symbol name, "sym" to have the symbol pointer, "s" to be
2887 a specified file's symtab, and sym_symtab to be the symbol's
2889 /* By jumping there we avoid falling through the FILE:LINE and
2890 FILE:FUNC processing stuff below */
2894 /* Couldn't find any interpretation as classes/namespaces, so give up */
2896 /* The quotes are important if copy is empty. */
2898 ("Can't find member of namespace, class, struct, or union named \"%s\"\n", copy
);
2899 cplusplus_hint (saved_arg
);
2900 return_to_top_level (RETURN_ERROR
);
2905 /* Extract the file name. */
2907 while (p
!= *argptr
&& p
[-1] == ' ')
2909 if ((*p
== '"') && is_quote_enclosed
)
2911 copy
= (char *) alloca (p
- *argptr
+ 1);
2912 if ((**argptr
== '"') && is_quote_enclosed
)
2914 memcpy (copy
, *argptr
+ 1, p
- *argptr
- 1);
2915 /* It may have the ending quote right after the file name */
2916 if (copy
[p
- *argptr
- 2] == '"')
2917 copy
[p
- *argptr
- 2] = 0;
2919 copy
[p
- *argptr
- 1] = 0;
2923 memcpy (copy
, *argptr
, p
- *argptr
);
2924 copy
[p
- *argptr
] = 0;
2927 /* Find that file's data. */
2928 s
= lookup_symtab (copy
);
2931 if (!have_full_symbols () && !have_partial_symbols ())
2932 error (no_symtab_msg
);
2933 error ("No source file named %s.", copy
);
2936 /* Discard the file name from the arg. */
2938 while (*p
== ' ' || *p
== '\t')
2943 /* No one really seems to know why this was added. It certainly
2944 breaks the command line, though, whenever the passed
2945 name is of the form ClassName::Method. This bit of code
2946 singles out the class name, and if funfirstline is set (for
2947 example, you are setting a breakpoint at this function),
2948 you get an error. This did not occur with earlier
2949 verions, so I am ifdef'ing this out. 3/29/99 */
2952 /* Check if what we have till now is a symbol name */
2954 /* We may be looking at a template instantiation such
2955 as "foo<int>". Check here whether we know about it,
2956 instead of falling through to the code below which
2957 handles ordinary function names, because that code
2958 doesn't like seeing '<' and '>' in a name -- the
2959 skip_quoted call doesn't go past them. So see if we
2960 can figure it out right now. */
2962 copy
= (char *) alloca (p
- *argptr
+ 1);
2963 memcpy (copy
, *argptr
, p
- *argptr
);
2964 copy
[p
- *argptr
] = '\000';
2965 sym
= lookup_symbol (copy
, 0, VAR_NAMESPACE
, 0, &sym_symtab
);
2968 /* Yes, we have a symbol; jump to symbol processing */
2969 /* Code after symbol_found expects S, SYM_SYMTAB, SYM,
2970 and COPY to be set correctly */
2971 *argptr
= (*p
== '\'') ? p
+ 1 : p
;
2972 s
= (struct symtab
*) 0;
2975 /* Otherwise fall out from here and go to file/line spec
2980 /* S is specified file's symtab, or 0 if no file specified.
2981 arg no longer contains the file name. */
2983 /* Check whether arg is all digits (and sign) */
2986 if (*q
== '-' || *q
== '+')
2988 while (*q
>= '0' && *q
<= '9')
2991 if (q
!= *argptr
&& (*q
== 0 || *q
== ' ' || *q
== '\t' || *q
== ','))
2993 /* We found a token consisting of all digits -- at least one digit. */
3000 /* We might need a canonical line spec if no file was specified. */
3001 int need_canonical
= (s
== 0) ? 1 : 0;
3003 /* This is where we need to make sure that we have good defaults.
3004 We must guarantee that this section of code is never executed
3005 when we are called with just a function name, since
3006 select_source_symtab calls us with such an argument */
3008 if (s
== 0 && default_symtab
== 0)
3010 select_source_symtab (0);
3011 default_symtab
= current_source_symtab
;
3012 default_line
= current_source_line
;
3015 if (**argptr
== '+')
3016 sign
= plus
, (*argptr
)++;
3017 else if (**argptr
== '-')
3018 sign
= minus
, (*argptr
)++;
3019 val
.line
= atoi (*argptr
);
3026 val
.line
= default_line
+ val
.line
;
3032 val
.line
= default_line
- val
.line
;
3037 break; /* No need to adjust val.line. */
3040 while (*q
== ' ' || *q
== '\t')
3046 /* It is possible that this source file has more than one symtab,
3047 and that the new line number specification has moved us from the
3048 default (in s) to a new one. */
3049 val
.symtab
= find_line_symtab (s
, val
.line
, NULL
, NULL
);
3050 if (val
.symtab
== 0)
3054 values
.sals
= (struct symtab_and_line
*)
3055 xmalloc (sizeof (struct symtab_and_line
));
3056 values
.sals
[0] = val
;
3059 build_canonical_line_spec (values
.sals
, NULL
, canonical
);
3063 /* Arg token is not digits => try it as a variable name
3064 Find the next token (everything up to end or next whitespace). */
3066 if (**argptr
== '$') /* May be a convenience variable */
3067 p
= skip_quoted (*argptr
+ (((*argptr
)[1] == '$') ? 2 : 1)); /* One or two $ chars possible */
3070 p
= skip_quoted (*argptr
);
3072 error ("Unmatched single quote.");
3074 else if (has_parens
)
3080 p
= skip_quoted (*argptr
);
3083 copy
= (char *) alloca (p
- *argptr
+ 1);
3084 memcpy (copy
, *argptr
, p
- *argptr
);
3085 copy
[p
- *argptr
] = '\0';
3088 && copy
[0] == copy
[p
- *argptr
- 1]
3089 && strchr (gdb_completer_quote_characters
, copy
[0]) != NULL
)
3091 copy
[p
- *argptr
- 1] = '\0';
3094 while (*p
== ' ' || *p
== '\t')
3098 /* If it starts with $: may be a legitimate variable or routine name
3099 (e.g. HP-UX millicode routines such as $$dyncall), or it may
3100 be history value, or it may be a convenience variable */
3106 int need_canonical
= 0;
3108 p
= (copy
[1] == '$') ? copy
+ 2 : copy
+ 1;
3109 while (*p
>= '0' && *p
<= '9')
3111 if (!*p
) /* reached end of token without hitting non-digit */
3113 /* We have a value history reference */
3114 sscanf ((copy
[1] == '$') ? copy
+ 2 : copy
+ 1, "%d", &index
);
3115 valx
= access_value_history ((copy
[1] == '$') ? -index
: index
);
3116 if (TYPE_CODE (VALUE_TYPE (valx
)) != TYPE_CODE_INT
)
3117 error ("History values used in line specs must have integer values.");
3121 /* Not all digits -- may be user variable/function or a
3122 convenience variable */
3124 /* Look up entire name as a symbol first */
3125 sym
= lookup_symbol (copy
, 0, VAR_NAMESPACE
, 0, &sym_symtab
);
3126 s
= (struct symtab
*) 0;
3128 /* Symbol was found --> jump to normal symbol processing.
3129 Code following "symbol_found" expects "copy" to have the
3130 symbol name, "sym" to have the symbol pointer, "s" to be
3131 a specified file's symtab, and sym_symtab to be the symbol's
3136 /* If symbol was not found, look in minimal symbol tables */
3137 msymbol
= lookup_minimal_symbol (copy
, 0, 0);
3138 /* Min symbol was found --> jump to minsym processing. */
3140 goto minimal_symbol_found
;
3142 /* Not a user variable or function -- must be convenience variable */
3143 need_canonical
= (s
== 0) ? 1 : 0;
3144 valx
= value_of_internalvar (lookup_internalvar (copy
+ 1));
3145 if (TYPE_CODE (VALUE_TYPE (valx
)) != TYPE_CODE_INT
)
3146 error ("Convenience variables used in line specs must have integer values.");
3149 /* Either history value or convenience value from above, in valx */
3150 val
.symtab
= s
? s
: default_symtab
;
3151 val
.line
= value_as_long (valx
);
3154 values
.sals
= (struct symtab_and_line
*) xmalloc (sizeof val
);
3155 values
.sals
[0] = val
;
3159 build_canonical_line_spec (values
.sals
, NULL
, canonical
);
3165 /* Look up that token as a variable.
3166 If file specified, use that file's per-file block to start with. */
3168 sym
= lookup_symbol (copy
,
3169 (s
? BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
)
3170 : get_selected_block ()),
3171 VAR_NAMESPACE
, 0, &sym_symtab
);
3173 symbol_found
: /* We also jump here from inside the C++ class/namespace
3174 code on finding a symbol of the form "A::B::C" */
3178 if (SYMBOL_CLASS (sym
) == LOC_BLOCK
)
3180 /* Arg is the name of a function */
3181 values
.sals
= (struct symtab_and_line
*)
3182 xmalloc (sizeof (struct symtab_and_line
));
3183 values
.sals
[0] = find_function_start_sal (sym
, funfirstline
);
3186 /* Don't use the SYMBOL_LINE; if used at all it points to
3187 the line containing the parameters or thereabouts, not
3188 the first line of code. */
3190 /* We might need a canonical line spec if it is a static
3194 struct blockvector
*bv
= BLOCKVECTOR (sym_symtab
);
3195 struct block
*b
= BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
);
3196 if (lookup_block_symbol (b
, copy
, VAR_NAMESPACE
) != NULL
)
3197 build_canonical_line_spec (values
.sals
, copy
, canonical
);
3204 error ("\"%s\" is not a function", copy
);
3205 else if (SYMBOL_LINE (sym
) != 0)
3207 /* We know its line number. */
3208 values
.sals
= (struct symtab_and_line
*)
3209 xmalloc (sizeof (struct symtab_and_line
));
3211 memset (&values
.sals
[0], 0, sizeof (values
.sals
[0]));
3212 values
.sals
[0].symtab
= sym_symtab
;
3213 values
.sals
[0].line
= SYMBOL_LINE (sym
);
3217 /* This can happen if it is compiled with a compiler which doesn't
3218 put out line numbers for variables. */
3219 /* FIXME: Shouldn't we just set .line and .symtab to zero
3220 and return? For example, "info line foo" could print
3222 error ("Line number not known for symbol \"%s\"", copy
);
3226 msymbol
= lookup_minimal_symbol (copy
, NULL
, NULL
);
3228 minimal_symbol_found
: /* We also jump here from the case for variables
3229 that begin with '$' */
3231 if (msymbol
!= NULL
)
3233 values
.sals
= (struct symtab_and_line
*)
3234 xmalloc (sizeof (struct symtab_and_line
));
3235 values
.sals
[0] = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol
),
3236 (struct sec
*) 0, 0);
3237 values
.sals
[0].section
= SYMBOL_BFD_SECTION (msymbol
);
3240 values
.sals
[0].pc
+= FUNCTION_START_OFFSET
;
3241 values
.sals
[0].pc
= SKIP_PROLOGUE (values
.sals
[0].pc
);
3247 if (!have_full_symbols () &&
3248 !have_partial_symbols () && !have_minimal_symbols ())
3249 error (no_symtab_msg
);
3251 error ("Function \"%s\" not defined.", copy
);
3252 return values
; /* for lint */
3255 struct symtabs_and_lines
3256 decode_line_spec (string
, funfirstline
)
3260 struct symtabs_and_lines sals
;
3262 error ("Empty line specification.");
3263 sals
= decode_line_1 (&string
, funfirstline
,
3264 current_source_symtab
, current_source_line
,
3267 error ("Junk at end of line specification: %s", string
);
3271 /* Given a list of NELTS symbols in SYM_ARR, return a list of lines to
3272 operate on (ask user if necessary).
3273 If CANONICAL is non-NULL return a corresponding array of mangled names
3274 as canonical line specs there. */
3276 static struct symtabs_and_lines
3277 decode_line_2 (sym_arr
, nelts
, funfirstline
, canonical
)
3278 struct symbol
*sym_arr
[];
3283 struct symtabs_and_lines values
, return_values
;
3288 struct cleanup
*old_chain
;
3289 char **canonical_arr
= (char **) NULL
;
3291 values
.sals
= (struct symtab_and_line
*)
3292 alloca (nelts
* sizeof (struct symtab_and_line
));
3293 return_values
.sals
= (struct symtab_and_line
*)
3294 xmalloc (nelts
* sizeof (struct symtab_and_line
));
3295 old_chain
= make_cleanup (free
, return_values
.sals
);
3299 canonical_arr
= (char **) xmalloc (nelts
* sizeof (char *));
3300 make_cleanup (free
, canonical_arr
);
3301 memset (canonical_arr
, 0, nelts
* sizeof (char *));
3302 *canonical
= canonical_arr
;
3306 printf_unfiltered ("[0] cancel\n[1] all\n");
3309 INIT_SAL (&return_values
.sals
[i
]); /* initialize to zeroes */
3310 INIT_SAL (&values
.sals
[i
]);
3311 if (sym_arr
[i
] && SYMBOL_CLASS (sym_arr
[i
]) == LOC_BLOCK
)
3313 values
.sals
[i
] = find_function_start_sal (sym_arr
[i
], funfirstline
);
3314 printf_unfiltered ("[%d] %s at %s:%d\n",
3316 SYMBOL_SOURCE_NAME (sym_arr
[i
]),
3317 values
.sals
[i
].symtab
->filename
,
3318 values
.sals
[i
].line
);
3321 printf_unfiltered ("?HERE\n");
3325 if ((prompt
= getenv ("PS2")) == NULL
)
3329 args
= command_line_input (prompt
, 0, "overload-choice");
3331 if (args
== 0 || *args
== 0)
3332 error_no_arg ("one or more choice numbers");
3340 while (*arg1
>= '0' && *arg1
<= '9')
3342 if (*arg1
&& *arg1
!= ' ' && *arg1
!= '\t')
3343 error ("Arguments must be choice numbers.");
3348 error ("cancelled");
3353 for (i
= 0; i
< nelts
; i
++)
3355 if (canonical_arr
[i
] == NULL
)
3357 symname
= SYMBOL_NAME (sym_arr
[i
]);
3358 canonical_arr
[i
] = savestring (symname
, strlen (symname
));
3362 memcpy (return_values
.sals
, values
.sals
,
3363 (nelts
* sizeof (struct symtab_and_line
)));
3364 return_values
.nelts
= nelts
;
3365 discard_cleanups (old_chain
);
3366 return return_values
;
3369 if (num
>= nelts
+ 2)
3371 printf_unfiltered ("No choice number %d.\n", num
);
3376 if (values
.sals
[num
].pc
)
3380 symname
= SYMBOL_NAME (sym_arr
[num
]);
3381 make_cleanup (free
, symname
);
3382 canonical_arr
[i
] = savestring (symname
, strlen (symname
));
3384 return_values
.sals
[i
++] = values
.sals
[num
];
3385 values
.sals
[num
].pc
= 0;
3389 printf_unfiltered ("duplicate request for %d ignored.\n", num
);
3394 while (*args
== ' ' || *args
== '\t')
3397 return_values
.nelts
= i
;
3398 discard_cleanups (old_chain
);
3399 return return_values
;
3403 /* Slave routine for sources_info. Force line breaks at ,'s.
3404 NAME is the name to print and *FIRST is nonzero if this is the first
3405 name printed. Set *FIRST to zero. */
3407 output_source_filename (name
, first
)
3411 /* Table of files printed so far. Since a single source file can
3412 result in several partial symbol tables, we need to avoid printing
3413 it more than once. Note: if some of the psymtabs are read in and
3414 some are not, it gets printed both under "Source files for which
3415 symbols have been read" and "Source files for which symbols will
3416 be read in on demand". I consider this a reasonable way to deal
3417 with the situation. I'm not sure whether this can also happen for
3418 symtabs; it doesn't hurt to check. */
3419 static char **tab
= NULL
;
3420 /* Allocated size of tab in elements.
3421 Start with one 256-byte block (when using GNU malloc.c).
3422 24 is the malloc overhead when range checking is in effect. */
3423 static int tab_alloc_size
= (256 - 24) / sizeof (char *);
3424 /* Current size of tab in elements. */
3425 static int tab_cur_size
;
3432 tab
= (char **) xmalloc (tab_alloc_size
* sizeof (*tab
));
3436 /* Is NAME in tab? */
3437 for (p
= tab
; p
< tab
+ tab_cur_size
; p
++)
3438 if (STREQ (*p
, name
))
3439 /* Yes; don't print it again. */
3441 /* No; add it to tab. */
3442 if (tab_cur_size
== tab_alloc_size
)
3444 tab_alloc_size
*= 2;
3445 tab
= (char **) xrealloc ((char *) tab
, tab_alloc_size
* sizeof (*tab
));
3447 tab
[tab_cur_size
++] = name
;
3455 printf_filtered (", ");
3459 fputs_filtered (name
, gdb_stdout
);
3463 sources_info (ignore
, from_tty
)
3467 register struct symtab
*s
;
3468 register struct partial_symtab
*ps
;
3469 register struct objfile
*objfile
;
3472 if (!have_full_symbols () && !have_partial_symbols ())
3474 error (no_symtab_msg
);
3477 printf_filtered ("Source files for which symbols have been read in:\n\n");
3480 ALL_SYMTABS (objfile
, s
)
3482 output_source_filename (s
->filename
, &first
);
3484 printf_filtered ("\n\n");
3486 printf_filtered ("Source files for which symbols will be read in on demand:\n\n");
3489 ALL_PSYMTABS (objfile
, ps
)
3493 output_source_filename (ps
->filename
, &first
);
3496 printf_filtered ("\n");
3500 file_matches (file
, files
, nfiles
)
3507 if (file
!= NULL
&& nfiles
!= 0)
3509 for (i
= 0; i
< nfiles
; i
++)
3511 if (strcmp (files
[i
], basename (file
)) == 0)
3515 else if (nfiles
== 0)
3520 /* Free any memory associated with a search. */
3522 free_search_symbols (symbols
)
3523 struct symbol_search
*symbols
;
3525 struct symbol_search
*p
;
3526 struct symbol_search
*next
;
3528 for (p
= symbols
; p
!= NULL
; p
= next
)
3535 /* Search the symbol table for matches to the regular expression REGEXP,
3536 returning the results in *MATCHES.
3538 Only symbols of KIND are searched:
3539 FUNCTIONS_NAMESPACE - search all functions
3540 TYPES_NAMESPACE - search all type names
3541 METHODS_NAMESPACE - search all methods NOT IMPLEMENTED
3542 VARIABLES_NAMESPACE - search all symbols, excluding functions, type names,
3543 and constants (enums)
3545 free_search_symbols should be called when *MATCHES is no longer needed.
3548 search_symbols (regexp
, kind
, nfiles
, files
, matches
)
3550 namespace_enum kind
;
3553 struct symbol_search
**matches
;
3556 register struct symtab
*s
;
3557 register struct partial_symtab
*ps
;
3558 register struct blockvector
*bv
;
3559 struct blockvector
*prev_bv
= 0;
3560 register struct block
*b
;
3563 register struct symbol
*sym
;
3564 struct partial_symbol
**psym
;
3565 struct objfile
*objfile
;
3566 struct minimal_symbol
*msymbol
;
3569 static enum minimal_symbol_type types
[]
3571 {mst_data
, mst_text
, mst_abs
, mst_unknown
};
3572 static enum minimal_symbol_type types2
[]
3574 {mst_bss
, mst_file_text
, mst_abs
, mst_unknown
};
3575 static enum minimal_symbol_type types3
[]
3577 {mst_file_data
, mst_solib_trampoline
, mst_abs
, mst_unknown
};
3578 static enum minimal_symbol_type types4
[]
3580 {mst_file_bss
, mst_text
, mst_abs
, mst_unknown
};
3581 enum minimal_symbol_type ourtype
;
3582 enum minimal_symbol_type ourtype2
;
3583 enum minimal_symbol_type ourtype3
;
3584 enum minimal_symbol_type ourtype4
;
3585 struct symbol_search
*sr
;
3586 struct symbol_search
*psr
;
3587 struct symbol_search
*tail
;
3588 struct cleanup
*old_chain
= NULL
;
3590 if (kind
< LABEL_NAMESPACE
)
3591 error ("must search on specific namespace");
3593 ourtype
= types
[(int) (kind
- LABEL_NAMESPACE
)];
3594 ourtype2
= types2
[(int) (kind
- LABEL_NAMESPACE
)];
3595 ourtype3
= types3
[(int) (kind
- LABEL_NAMESPACE
)];
3596 ourtype4
= types4
[(int) (kind
- LABEL_NAMESPACE
)];
3598 sr
= *matches
= NULL
;
3603 /* Make sure spacing is right for C++ operators.
3604 This is just a courtesy to make the matching less sensitive
3605 to how many spaces the user leaves between 'operator'
3606 and <TYPENAME> or <OPERATOR>. */
3608 char *opname
= operator_chars (regexp
, &opend
);
3611 int fix
= -1; /* -1 means ok; otherwise number of spaces needed. */
3612 if (isalpha (*opname
) || *opname
== '_' || *opname
== '$')
3614 /* There should 1 space between 'operator' and 'TYPENAME'. */
3615 if (opname
[-1] != ' ' || opname
[-2] == ' ')
3620 /* There should 0 spaces between 'operator' and 'OPERATOR'. */
3621 if (opname
[-1] == ' ')
3624 /* If wrong number of spaces, fix it. */
3627 char *tmp
= (char *) alloca (opend
- opname
+ 10);
3628 sprintf (tmp
, "operator%.*s%s", fix
, " ", opname
);
3633 if (0 != (val
= re_comp (regexp
)))
3634 error ("Invalid regexp (%s): %s", val
, regexp
);
3637 /* Search through the partial symtabs *first* for all symbols
3638 matching the regexp. That way we don't have to reproduce all of
3639 the machinery below. */
3641 ALL_PSYMTABS (objfile
, ps
)
3643 struct partial_symbol
**bound
, **gbound
, **sbound
;
3649 gbound
= objfile
->global_psymbols
.list
+ ps
->globals_offset
+ ps
->n_global_syms
;
3650 sbound
= objfile
->static_psymbols
.list
+ ps
->statics_offset
+ ps
->n_static_syms
;
3653 /* Go through all of the symbols stored in a partial
3654 symtab in one loop. */
3655 psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
3660 if (bound
== gbound
&& ps
->n_static_syms
!= 0)
3662 psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
3673 /* If it would match (logic taken from loop below)
3674 load the file and go on to the next one */
3675 if (file_matches (ps
->filename
, files
, nfiles
)
3676 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (*psym
))
3677 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (*psym
) != LOC_TYPEDEF
3678 && SYMBOL_CLASS (*psym
) != LOC_BLOCK
)
3679 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
)
3680 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_TYPEDEF
)
3681 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (*psym
) == LOC_BLOCK
))))
3683 PSYMTAB_TO_SYMTAB (ps
);
3691 /* Here, we search through the minimal symbol tables for functions
3692 and variables that match, and force their symbols to be read.
3693 This is in particular necessary for demangled variable names,
3694 which are no longer put into the partial symbol tables.
3695 The symbol will then be found during the scan of symtabs below.
3697 For functions, find_pc_symtab should succeed if we have debug info
3698 for the function, for variables we have to call lookup_symbol
3699 to determine if the variable has debug info.
3700 If the lookup fails, set found_misc so that we will rescan to print
3701 any matching symbols without debug info.
3704 if (nfiles
== 0 && (kind
== VARIABLES_NAMESPACE
|| kind
== FUNCTIONS_NAMESPACE
))
3706 ALL_MSYMBOLS (objfile
, msymbol
)
3708 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
3709 MSYMBOL_TYPE (msymbol
) == ourtype2
||
3710 MSYMBOL_TYPE (msymbol
) == ourtype3
||
3711 MSYMBOL_TYPE (msymbol
) == ourtype4
)
3713 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
3715 if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
)))
3717 if (kind
== FUNCTIONS_NAMESPACE
3718 || lookup_symbol (SYMBOL_NAME (msymbol
),
3719 (struct block
*) NULL
,
3721 0, (struct symtab
**) NULL
) == NULL
)
3729 ALL_SYMTABS (objfile
, s
)
3731 bv
= BLOCKVECTOR (s
);
3732 /* Often many files share a blockvector.
3733 Scan each blockvector only once so that
3734 we don't get every symbol many times.
3735 It happens that the first symtab in the list
3736 for any given blockvector is the main file. */
3738 for (i
= GLOBAL_BLOCK
; i
<= STATIC_BLOCK
; i
++)
3740 b
= BLOCKVECTOR_BLOCK (bv
, i
);
3741 /* Skip the sort if this block is always sorted. */
3742 if (!BLOCK_SHOULD_SORT (b
))
3743 sort_block_syms (b
);
3744 for (j
= 0; j
< BLOCK_NSYMS (b
); j
++)
3747 sym
= BLOCK_SYM (b
, j
);
3748 if (file_matches (s
->filename
, files
, nfiles
)
3749 && ((regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (sym
))
3750 && ((kind
== VARIABLES_NAMESPACE
&& SYMBOL_CLASS (sym
) != LOC_TYPEDEF
3751 && SYMBOL_CLASS (sym
) != LOC_BLOCK
3752 && SYMBOL_CLASS (sym
) != LOC_CONST
)
3753 || (kind
== FUNCTIONS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
)
3754 || (kind
== TYPES_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
3755 || (kind
== METHODS_NAMESPACE
&& SYMBOL_CLASS (sym
) == LOC_BLOCK
))))
3758 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
3762 psr
->msymbol
= NULL
;
3767 old_chain
= make_cleanup ((make_cleanup_func
)
3768 free_search_symbols
, sr
);
3779 /* If there are no eyes, avoid all contact. I mean, if there are
3780 no debug symbols, then print directly from the msymbol_vector. */
3782 if (found_misc
|| kind
!= FUNCTIONS_NAMESPACE
)
3784 ALL_MSYMBOLS (objfile
, msymbol
)
3786 if (MSYMBOL_TYPE (msymbol
) == ourtype
||
3787 MSYMBOL_TYPE (msymbol
) == ourtype2
||
3788 MSYMBOL_TYPE (msymbol
) == ourtype3
||
3789 MSYMBOL_TYPE (msymbol
) == ourtype4
)
3791 if (regexp
== NULL
|| SYMBOL_MATCHES_REGEXP (msymbol
))
3793 /* Functions: Look up by address. */
3794 if (kind
!= FUNCTIONS_NAMESPACE
||
3795 (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol
))))
3797 /* Variables/Absolutes: Look up by name */
3798 if (lookup_symbol (SYMBOL_NAME (msymbol
),
3799 (struct block
*) NULL
, VAR_NAMESPACE
,
3800 0, (struct symtab
**) NULL
) == NULL
)
3803 psr
= (struct symbol_search
*) xmalloc (sizeof (struct symbol_search
));
3805 psr
->msymbol
= msymbol
;
3812 old_chain
= make_cleanup ((make_cleanup_func
)
3813 free_search_symbols
, &sr
);
3827 discard_cleanups (old_chain
);
3830 /* Helper function for symtab_symbol_info, this function uses
3831 the data returned from search_symbols() to print information
3832 regarding the match to gdb_stdout.
3835 print_symbol_info (kind
, s
, sym
, block
, last
)
3836 namespace_enum kind
;
3842 if (last
== NULL
|| strcmp (last
, s
->filename
) != 0)
3844 fputs_filtered ("\nFile ", gdb_stdout
);
3845 fputs_filtered (s
->filename
, gdb_stdout
);
3846 fputs_filtered (":\n", gdb_stdout
);
3849 if (kind
!= TYPES_NAMESPACE
&& block
== STATIC_BLOCK
)
3850 printf_filtered ("static ");
3852 /* Typedef that is not a C++ class */
3853 if (kind
== TYPES_NAMESPACE
3854 && SYMBOL_NAMESPACE (sym
) != STRUCT_NAMESPACE
)
3855 c_typedef_print (SYMBOL_TYPE (sym
), sym
, gdb_stdout
);
3856 /* variable, func, or typedef-that-is-c++-class */
3857 else if (kind
< TYPES_NAMESPACE
||
3858 (kind
== TYPES_NAMESPACE
&&
3859 SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
))
3861 type_print (SYMBOL_TYPE (sym
),
3862 (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
3863 ? "" : SYMBOL_SOURCE_NAME (sym
)),
3866 printf_filtered (";\n");
3871 /* Tiemann says: "info methods was never implemented." */
3872 char *demangled_name
;
3873 c_type_print_base (TYPE_FN_FIELD_TYPE (t
, block
),
3875 c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t
, block
),
3877 if (TYPE_FN_FIELD_STUB (t
, block
))
3878 check_stub_method (TYPE_DOMAIN_TYPE (type
), j
, block
);
3880 cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t
, block
),
3881 DMGL_ANSI
| DMGL_PARAMS
);
3882 if (demangled_name
== NULL
)
3883 fprintf_filtered (stream
, "<badly mangled name %s>",
3884 TYPE_FN_FIELD_PHYSNAME (t
, block
));
3887 fputs_filtered (demangled_name
, stream
);
3888 free (demangled_name
);
3894 /* This help function for symtab_symbol_info() prints information
3895 for non-debugging symbols to gdb_stdout.
3898 print_msymbol_info (msymbol
)
3899 struct minimal_symbol
*msymbol
;
3901 printf_filtered (" %08lx %s\n",
3902 (unsigned long) SYMBOL_VALUE_ADDRESS (msymbol
),
3903 SYMBOL_SOURCE_NAME (msymbol
));
3906 /* This is the guts of the commands "info functions", "info types", and
3907 "info variables". It calls search_symbols to find all matches and then
3908 print_[m]symbol_info to print out some useful information about the
3912 symtab_symbol_info (regexp
, kind
, from_tty
)
3914 namespace_enum kind
;
3917 static char *classnames
[]
3919 {"variable", "function", "type", "method"};
3920 struct symbol_search
*symbols
;
3921 struct symbol_search
*p
;
3922 struct cleanup
*old_chain
;
3923 char *last_filename
= NULL
;
3926 /* must make sure that if we're interrupted, symbols gets freed */
3927 search_symbols (regexp
, kind
, 0, (char **) NULL
, &symbols
);
3928 old_chain
= make_cleanup ((make_cleanup_func
) free_search_symbols
, symbols
);
3930 printf_filtered (regexp
3931 ? "All %ss matching regular expression \"%s\":\n"
3932 : "All defined %ss:\n",
3933 classnames
[(int) (kind
- LABEL_NAMESPACE
- 1)], regexp
);
3935 for (p
= symbols
; p
!= NULL
; p
= p
->next
)
3939 if (p
->msymbol
!= NULL
)
3943 printf_filtered ("\nNon-debugging symbols:\n");
3946 print_msymbol_info (p
->msymbol
);
3950 print_symbol_info (kind
,
3955 last_filename
= p
->symtab
->filename
;
3959 do_cleanups (old_chain
);
3963 variables_info (regexp
, from_tty
)
3967 symtab_symbol_info (regexp
, VARIABLES_NAMESPACE
, from_tty
);
3971 functions_info (regexp
, from_tty
)
3975 symtab_symbol_info (regexp
, FUNCTIONS_NAMESPACE
, from_tty
);
3979 types_info (regexp
, from_tty
)
3983 symtab_symbol_info (regexp
, TYPES_NAMESPACE
, from_tty
);
3987 /* Tiemann says: "info methods was never implemented." */
3989 methods_info (regexp
)
3992 symtab_symbol_info (regexp
, METHODS_NAMESPACE
, 0, from_tty
);
3996 /* Breakpoint all functions matching regular expression. */
3998 rbreak_command (regexp
, from_tty
)
4002 struct symbol_search
*ss
;
4003 struct symbol_search
*p
;
4004 struct cleanup
*old_chain
;
4006 search_symbols (regexp
, FUNCTIONS_NAMESPACE
, 0, (char **) NULL
, &ss
);
4007 old_chain
= make_cleanup ((make_cleanup_func
) free_search_symbols
, ss
);
4009 for (p
= ss
; p
!= NULL
; p
= p
->next
)
4011 if (p
->msymbol
== NULL
)
4013 char *string
= (char *) alloca (strlen (p
->symtab
->filename
)
4014 + strlen (SYMBOL_NAME (p
->symbol
))
4016 strcpy (string
, p
->symtab
->filename
);
4017 strcat (string
, ":'");
4018 strcat (string
, SYMBOL_NAME (p
->symbol
));
4019 strcat (string
, "'");
4020 break_command (string
, from_tty
);
4021 print_symbol_info (FUNCTIONS_NAMESPACE
,
4025 p
->symtab
->filename
);
4029 break_command (SYMBOL_NAME (p
->msymbol
), from_tty
);
4030 printf_filtered ("<function, no debug info> %s;\n",
4031 SYMBOL_SOURCE_NAME (p
->msymbol
));
4035 do_cleanups (old_chain
);
4039 /* Return Nonzero if block a is lexically nested within block b,
4040 or if a and b have the same pc range.
4041 Return zero otherwise. */
4044 struct block
*a
, *b
;
4048 return BLOCK_START (a
) >= BLOCK_START (b
)
4049 && BLOCK_END (a
) <= BLOCK_END (b
);
4053 /* Helper routine for make_symbol_completion_list. */
4055 static int return_val_size
;
4056 static int return_val_index
;
4057 static char **return_val
;
4059 #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \
4061 if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \
4062 /* Put only the mangled name on the list. */ \
4063 /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \
4064 /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \
4065 completion_list_add_name \
4066 (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \
4068 completion_list_add_name \
4069 (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \
4072 /* Test to see if the symbol specified by SYMNAME (which is already
4073 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
4074 characters. If so, add it to the current completion list. */
4077 completion_list_add_name (symname
, sym_text
, sym_text_len
, text
, word
)
4087 /* clip symbols that cannot match */
4089 if (strncmp (symname
, sym_text
, sym_text_len
) != 0)
4094 /* Clip any symbol names that we've already considered. (This is a
4095 time optimization) */
4097 for (i
= 0; i
< return_val_index
; ++i
)
4099 if (STREQ (symname
, return_val
[i
]))
4105 /* We have a match for a completion, so add SYMNAME to the current list
4106 of matches. Note that the name is moved to freshly malloc'd space. */
4110 if (word
== sym_text
)
4112 new = xmalloc (strlen (symname
) + 5);
4113 strcpy (new, symname
);
4115 else if (word
> sym_text
)
4117 /* Return some portion of symname. */
4118 new = xmalloc (strlen (symname
) + 5);
4119 strcpy (new, symname
+ (word
- sym_text
));
4123 /* Return some of SYM_TEXT plus symname. */
4124 new = xmalloc (strlen (symname
) + (sym_text
- word
) + 5);
4125 strncpy (new, word
, sym_text
- word
);
4126 new[sym_text
- word
] = '\0';
4127 strcat (new, symname
);
4130 /* Recheck for duplicates if we intend to add a modified symbol. */
4131 if (word
!= sym_text
)
4133 for (i
= 0; i
< return_val_index
; ++i
)
4135 if (STREQ (new, return_val
[i
]))
4143 if (return_val_index
+ 3 > return_val_size
)
4145 newsize
= (return_val_size
*= 2) * sizeof (char *);
4146 return_val
= (char **) xrealloc ((char *) return_val
, newsize
);
4148 return_val
[return_val_index
++] = new;
4149 return_val
[return_val_index
] = NULL
;
4153 /* Return a NULL terminated array of all symbols (regardless of class) which
4154 begin by matching TEXT. If the answer is no symbols, then the return value
4155 is an array which contains only a NULL pointer.
4157 Problem: All of the symbols have to be copied because readline frees them.
4158 I'm not going to worry about this; hopefully there won't be that many. */
4161 make_symbol_completion_list (text
, word
)
4165 register struct symbol
*sym
;
4166 register struct symtab
*s
;
4167 register struct partial_symtab
*ps
;
4168 register struct minimal_symbol
*msymbol
;
4169 register struct objfile
*objfile
;
4170 register struct block
*b
, *surrounding_static_block
= 0;
4172 struct partial_symbol
**psym
;
4173 /* The symbol we are completing on. Points in same buffer as text. */
4175 /* Length of sym_text. */
4178 /* Now look for the symbol we are supposed to complete on.
4179 FIXME: This should be language-specific. */
4183 char *quote_pos
= NULL
;
4185 /* First see if this is a quoted string. */
4187 for (p
= text
; *p
!= '\0'; ++p
)
4189 if (quote_found
!= '\0')
4191 if (*p
== quote_found
)
4192 /* Found close quote. */
4194 else if (*p
== '\\' && p
[1] == quote_found
)
4195 /* A backslash followed by the quote character
4196 doesn't end the string. */
4199 else if (*p
== '\'' || *p
== '"')
4205 if (quote_found
== '\'')
4206 /* A string within single quotes can be a symbol, so complete on it. */
4207 sym_text
= quote_pos
+ 1;
4208 else if (quote_found
== '"')
4209 /* A double-quoted string is never a symbol, nor does it make sense
4210 to complete it any other way. */
4214 /* It is not a quoted string. Break it based on the characters
4215 which are in symbols. */
4218 if (isalnum (p
[-1]) || p
[-1] == '_' || p
[-1] == '\0')
4227 sym_text_len
= strlen (sym_text
);
4229 return_val_size
= 100;
4230 return_val_index
= 0;
4231 return_val
= (char **) xmalloc ((return_val_size
+ 1) * sizeof (char *));
4232 return_val
[0] = NULL
;
4234 /* Look through the partial symtabs for all symbols which begin
4235 by matching SYM_TEXT. Add each one that you find to the list. */
4237 ALL_PSYMTABS (objfile
, ps
)
4239 /* If the psymtab's been read in we'll get it when we search
4240 through the blockvector. */
4244 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
4245 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
4246 + ps
->n_global_syms
);
4249 /* If interrupted, then quit. */
4251 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
4254 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
4255 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
4256 + ps
->n_static_syms
);
4260 COMPLETION_LIST_ADD_SYMBOL (*psym
, sym_text
, sym_text_len
, text
, word
);
4264 /* At this point scan through the misc symbol vectors and add each
4265 symbol you find to the list. Eventually we want to ignore
4266 anything that isn't a text symbol (everything else will be
4267 handled by the psymtab code above). */
4269 ALL_MSYMBOLS (objfile
, msymbol
)
4272 COMPLETION_LIST_ADD_SYMBOL (msymbol
, sym_text
, sym_text_len
, text
, word
);
4275 /* Search upwards from currently selected frame (so that we can
4276 complete on local vars. */
4278 for (b
= get_selected_block (); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
4280 if (!BLOCK_SUPERBLOCK (b
))
4282 surrounding_static_block
= b
; /* For elmin of dups */
4285 /* Also catch fields of types defined in this places which match our
4286 text string. Only complete on types visible from current context. */
4288 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
4290 sym
= BLOCK_SYM (b
, i
);
4291 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
4292 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
)
4294 struct type
*t
= SYMBOL_TYPE (sym
);
4295 enum type_code c
= TYPE_CODE (t
);
4297 if (c
== TYPE_CODE_UNION
|| c
== TYPE_CODE_STRUCT
)
4299 for (j
= TYPE_N_BASECLASSES (t
); j
< TYPE_NFIELDS (t
); j
++)
4301 if (TYPE_FIELD_NAME (t
, j
))
4303 completion_list_add_name (TYPE_FIELD_NAME (t
, j
),
4304 sym_text
, sym_text_len
, text
, word
);
4312 /* Go through the symtabs and check the externs and statics for
4313 symbols which match. */
4315 ALL_SYMTABS (objfile
, s
)
4318 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
4319 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
4321 sym
= BLOCK_SYM (b
, i
);
4322 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
4326 ALL_SYMTABS (objfile
, s
)
4329 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
4330 /* Don't do this block twice. */
4331 if (b
== surrounding_static_block
)
4333 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
4335 sym
= BLOCK_SYM (b
, i
);
4336 COMPLETION_LIST_ADD_SYMBOL (sym
, sym_text
, sym_text_len
, text
, word
);
4340 return (return_val
);
4343 /* Determine if PC is in the prologue of a function. The prologue is the area
4344 between the first instruction of a function, and the first executable line.
4345 Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
4347 If non-zero, func_start is where we think the prologue starts, possibly
4348 by previous examination of symbol table information.
4352 in_prologue (pc
, func_start
)
4354 CORE_ADDR func_start
;
4356 struct symtab_and_line sal
;
4357 CORE_ADDR func_addr
, func_end
;
4359 if (!find_pc_partial_function (pc
, NULL
, &func_addr
, &func_end
))
4360 goto nosyms
; /* Might be in prologue */
4362 sal
= find_pc_line (func_addr
, 0);
4367 /* sal.end is the address of the first instruction past sal.line. */
4368 if (sal
.end
> func_addr
4369 && sal
.end
<= func_end
) /* Is prologue in function? */
4370 return pc
< sal
.end
; /* Yes, is pc in prologue? */
4372 /* The line after the prologue seems to be outside the function. In this
4373 case, tell the caller to find the prologue the hard way. */
4377 /* Come here when symtabs don't contain line # info. In this case, it is
4378 likely that the user has stepped into a library function w/o symbols, or
4379 is doing a stepi/nexti through code without symbols. */
4383 /* If func_start is zero (meaning unknown) then we don't know whether pc is
4384 in the prologue or not. I.E. it might be. */
4389 /* We need to call the target-specific prologue skipping functions with the
4390 function's start address because PC may be pointing at an instruction that
4391 could be mistakenly considered part of the prologue. */
4393 func_start
= SKIP_PROLOGUE (func_start
);
4395 return pc
< func_start
;
4399 /* Begin overload resolution functions */
4400 /* Helper routine for make_symbol_completion_list. */
4402 static int sym_return_val_size
;
4403 static int sym_return_val_index
;
4404 static struct symbol
**sym_return_val
;
4406 /* Test to see if the symbol specified by SYMNAME (which is already
4407 demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
4408 characters. If so, add it to the current completion list. */
4411 overload_list_add_symbol (sym
, oload_name
)
4418 /* Get the demangled name without parameters */
4419 char *sym_name
= cplus_demangle (SYMBOL_NAME (sym
), DMGL_ARM
| DMGL_ANSI
);
4422 sym_name
= (char *) xmalloc (strlen (SYMBOL_NAME (sym
)) + 1);
4423 strcpy (sym_name
, SYMBOL_NAME (sym
));
4426 /* skip symbols that cannot match */
4427 if (strcmp (sym_name
, oload_name
) != 0)
4430 /* If there is no type information, we can't do anything, so skip */
4431 if (SYMBOL_TYPE (sym
) == NULL
)
4434 /* skip any symbols that we've already considered. */
4435 for (i
= 0; i
< sym_return_val_index
; ++i
)
4436 if (!strcmp (SYMBOL_NAME (sym
), SYMBOL_NAME (sym_return_val
[i
])))
4439 /* We have a match for an overload instance, so add SYM to the current list
4440 * of overload instances */
4441 if (sym_return_val_index
+ 3 > sym_return_val_size
)
4443 newsize
= (sym_return_val_size
*= 2) * sizeof (struct symbol
*);
4444 sym_return_val
= (struct symbol
**) xrealloc ((char *) sym_return_val
, newsize
);
4446 sym_return_val
[sym_return_val_index
++] = sym
;
4447 sym_return_val
[sym_return_val_index
] = NULL
;
4452 /* Return a null-terminated list of pointers to function symbols that
4453 * match name of the supplied symbol FSYM.
4454 * This is used in finding all overloaded instances of a function name.
4455 * This has been modified from make_symbol_completion_list. */
4459 make_symbol_overload_list (fsym
)
4460 struct symbol
*fsym
;
4462 register struct symbol
*sym
;
4463 register struct symtab
*s
;
4464 register struct partial_symtab
*ps
;
4465 register struct objfile
*objfile
;
4466 register struct minimal_symbol
*msymbol
;
4467 register struct block
*b
, *surrounding_static_block
= 0;
4469 /* The name we are completing on. */
4470 char *oload_name
= NULL
;
4471 /* Length of name. */
4472 int oload_name_len
= 0;
4474 /* Look for the symbol we are supposed to complete on.
4475 * FIXME: This should be language-specific. */
4477 oload_name
= cplus_demangle (SYMBOL_NAME (fsym
), DMGL_ARM
| DMGL_ANSI
);
4480 oload_name
= (char *) xmalloc (strlen (SYMBOL_NAME (fsym
)) + 1);
4481 strcpy (oload_name
, SYMBOL_NAME (fsym
));
4483 oload_name_len
= strlen (oload_name
);
4485 sym_return_val_size
= 100;
4486 sym_return_val_index
= 0;
4487 sym_return_val
= (struct symbol
**) xmalloc ((sym_return_val_size
+ 1) * sizeof (struct symbol
*));
4488 sym_return_val
[0] = NULL
;
4490 /* Comment and #if 0 from Rajiv Mirani <mirani@cup.hp.com>.
4491 However, leaving #if 0's around is uncool. We need to figure out
4492 what this is really trying to do, decide whether we want that,
4493 and either fix it or delete it. --- Jim Blandy, Mar 1999 */
4495 /* ??? RM: What in hell is this? overload_list_add_symbol expects a symbol,
4496 * not a partial_symbol or a minimal_symbol. And it looks at the type field
4497 * of the symbol, and we don't know the type of minimal and partial symbols
4500 /* Look through the partial symtabs for all symbols which begin
4501 by matching OLOAD_NAME. Add each one that you find to the list. */
4503 ALL_PSYMTABS (objfile
, ps
)
4505 struct partial_symbol
**psym
;
4507 /* If the psymtab's been read in we'll get it when we search
4508 through the blockvector. */
4512 for (psym
= objfile
->global_psymbols
.list
+ ps
->globals_offset
;
4513 psym
< (objfile
->global_psymbols
.list
+ ps
->globals_offset
4514 + ps
->n_global_syms
);
4517 /* If interrupted, then quit. */
4519 overload_list_add_symbol (*psym
, oload_name
);
4522 for (psym
= objfile
->static_psymbols
.list
+ ps
->statics_offset
;
4523 psym
< (objfile
->static_psymbols
.list
+ ps
->statics_offset
4524 + ps
->n_static_syms
);
4528 overload_list_add_symbol (*psym
, oload_name
);
4532 /* At this point scan through the misc symbol vectors and add each
4533 symbol you find to the list. Eventually we want to ignore
4534 anything that isn't a text symbol (everything else will be
4535 handled by the psymtab code above). */
4537 ALL_MSYMBOLS (objfile
, msymbol
)
4540 overload_list_add_symbol (msymbol
, oload_name
);
4544 /* Search upwards from currently selected frame (so that we can
4545 complete on local vars. */
4547 for (b
= get_selected_block (); b
!= NULL
; b
= BLOCK_SUPERBLOCK (b
))
4549 if (!BLOCK_SUPERBLOCK (b
))
4551 surrounding_static_block
= b
; /* For elimination of dups */
4554 /* Also catch fields of types defined in this places which match our
4555 text string. Only complete on types visible from current context. */
4557 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
4559 sym
= BLOCK_SYM (b
, i
);
4560 overload_list_add_symbol (sym
, oload_name
);
4564 /* Go through the symtabs and check the externs and statics for
4565 symbols which match. */
4567 ALL_SYMTABS (objfile
, s
)
4570 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
4571 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
4573 sym
= BLOCK_SYM (b
, i
);
4574 overload_list_add_symbol (sym
, oload_name
);
4578 ALL_SYMTABS (objfile
, s
)
4581 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
);
4582 /* Don't do this block twice. */
4583 if (b
== surrounding_static_block
)
4585 for (i
= 0; i
< BLOCK_NSYMS (b
); i
++)
4587 sym
= BLOCK_SYM (b
, i
);
4588 overload_list_add_symbol (sym
, oload_name
);
4594 return (sym_return_val
);
4597 /* End of overload resolution functions */
4601 _initialize_symtab ()
4603 add_info ("variables", variables_info
,
4604 "All global and static variable names, or those matching REGEXP.");
4606 add_com ("whereis", class_info
, variables_info
,
4607 "All global and static variable names, or those matching REGEXP.");
4609 add_info ("functions", functions_info
,
4610 "All function names, or those matching REGEXP.");
4612 /* FIXME: This command has at least the following problems:
4613 1. It prints builtin types (in a very strange and confusing fashion).
4614 2. It doesn't print right, e.g. with
4615 typedef struct foo *FOO
4616 type_print prints "FOO" when we want to make it (in this situation)
4617 print "struct foo *".
4618 I also think "ptype" or "whatis" is more likely to be useful (but if
4619 there is much disagreement "info types" can be fixed). */
4620 add_info ("types", types_info
,
4621 "All type names, or those matching REGEXP.");
4624 add_info ("methods", methods_info
,
4625 "All method names, or those matching REGEXP::REGEXP.\n\
4626 If the class qualifier is omitted, it is assumed to be the current scope.\n\
4627 If the first REGEXP is omitted, then all methods matching the second REGEXP\n\
4630 add_info ("sources", sources_info
,
4631 "Source files in the program.");
4633 add_com ("rbreak", class_breakpoint
, rbreak_command
,
4634 "Set a breakpoint for all functions matching REGEXP.");
4638 add_com ("lf", class_info
, sources_info
, "Source files in the program");
4639 add_com ("lg", class_info
, variables_info
,
4640 "All global and static variable names, or those matching REGEXP.");
4643 /* Initialize the one built-in type that isn't language dependent... */
4644 builtin_type_error
= init_type (TYPE_CODE_ERROR
, 0, 0,
4645 "<unknown type>", (struct objfile
*) NULL
);