1 /* Helper routines for C++ support in GDB.
2 Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
5 Contributed by David Carlton and by Kealia, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #include "cp-support.h"
24 #include "gdb_obstack.h"
27 #include "gdb_assert.h"
31 #include "dictionary.h"
36 static struct symbol
*lookup_namespace_scope (const char *name
,
37 const struct block
*block
,
38 const domain_enum domain
,
42 static struct symbol
*lookup_symbol_file (const char *name
,
43 const struct block
*block
,
44 const domain_enum domain
,
45 int anonymous_namespace
);
47 static struct type
*cp_lookup_transparent_type_loop (const char *name
,
51 static void initialize_namespace_symtab (struct objfile
*objfile
);
53 static struct block
*get_possible_namespace_block (struct objfile
*objfile
);
55 static void free_namespace_block (struct symtab
*symtab
);
57 static int check_possible_namespace_symbols_loop (const char *name
,
59 struct objfile
*objfile
);
61 static int check_one_possible_namespace_symbol (const char *name
,
63 struct objfile
*objfile
);
65 static struct symbol
*lookup_possible_namespace_symbol (const char *name
);
67 static void maintenance_cplus_namespace (char *args
, int from_tty
);
69 /* Check to see if SYMBOL refers to an object contained within an
70 anonymous namespace; if so, add an appropriate using directive. */
72 /* Optimize away strlen ("(anonymous namespace)"). */
74 #define ANONYMOUS_NAMESPACE_LEN 21
77 cp_scan_for_anonymous_namespaces (const struct symbol
*symbol
)
79 if (SYMBOL_DEMANGLED_NAME (symbol
) != NULL
)
81 const char *name
= SYMBOL_DEMANGLED_NAME (symbol
);
82 unsigned int previous_component
;
83 unsigned int next_component
;
86 /* Start with a quick-and-dirty check for mention of "(anonymous
89 if (!cp_is_anonymous (name
))
92 previous_component
= 0;
93 next_component
= cp_find_first_component (name
+ previous_component
);
95 while (name
[next_component
] == ':')
97 if ((next_component
- previous_component
) == ANONYMOUS_NAMESPACE_LEN
98 && strncmp (name
+ previous_component
,
99 "(anonymous namespace)",
100 ANONYMOUS_NAMESPACE_LEN
) == 0)
102 int dest_len
= (previous_component
== 0 ? 0 : previous_component
- 2);
103 int src_len
= next_component
;
105 char *dest
= alloca (dest_len
+ 1);
106 char *src
= alloca (src_len
+ 1);
108 memcpy (dest
, name
, dest_len
);
109 memcpy (src
, name
, src_len
);
111 dest
[dest_len
] = '\0';
114 /* We've found a component of the name that's an
115 anonymous namespace. So add symbols in it to the
116 namespace given by the previous component if there is
117 one, or to the global namespace if there isn't. */
118 cp_add_using_directive (dest
, src
, NULL
,
119 &SYMBOL_SYMTAB (symbol
)->objfile
->objfile_obstack
);
121 /* The "+ 2" is for the "::". */
122 previous_component
= next_component
+ 2;
123 next_component
= (previous_component
124 + cp_find_first_component (name
125 + previous_component
));
131 /* Add a using directive to using_directives. If the using directive in
132 question has already been added, don't add it twice.
133 Create a new struct using_direct which imports the namespace SRC into the
134 scope DEST. ALIAS is the name of the imported namespace in the current
135 scope. If ALIAS is NULL then the namespace is known by its original name.
136 The arguments are copied into newly allocated memory so they can be
140 cp_add_using_directive (const char *dest
, const char *src
, const char *alias
,
141 struct obstack
*obstack
)
143 struct using_direct
*current
;
144 struct using_direct
*new;
146 /* Has it already been added? */
148 for (current
= using_directives
; current
!= NULL
; current
= current
->next
)
150 if (strcmp (current
->import_src
, src
) == 0
151 && strcmp (current
->import_dest
, dest
) == 0
152 && ((alias
== NULL
&& current
->alias
== NULL
)
153 || (alias
!= NULL
&& current
->alias
!= NULL
154 && strcmp (alias
, current
->alias
) == 0)))
158 new = OBSTACK_ZALLOC (obstack
, struct using_direct
);
160 new->import_src
= obsavestring (src
, strlen (src
), obstack
);
161 new->import_dest
= obsavestring (dest
, strlen (dest
), obstack
);
164 new->alias
= obsavestring (alias
, strlen (alias
), obstack
);
166 new->next
= using_directives
;
167 using_directives
= new;
170 /* Record the namespace that the function defined by SYMBOL was
171 defined in, if necessary. BLOCK is the associated block; use
172 OBSTACK for allocation. */
175 cp_set_block_scope (const struct symbol
*symbol
,
177 struct obstack
*obstack
,
178 const char *processing_current_prefix
,
179 int processing_has_namespace_info
)
181 if (processing_has_namespace_info
)
184 (block
, obsavestring (processing_current_prefix
,
185 strlen (processing_current_prefix
),
189 else if (SYMBOL_DEMANGLED_NAME (symbol
) != NULL
)
191 /* Try to figure out the appropriate namespace from the
194 /* FIXME: carlton/2003-04-15: If the function in question is
195 a method of a class, the name will actually include the
196 name of the class as well. This should be harmless, but
197 is a little unfortunate. */
199 const char *name
= SYMBOL_DEMANGLED_NAME (symbol
);
200 unsigned int prefix_len
= cp_entire_prefix_len (name
);
202 block_set_scope (block
,
203 obsavestring (name
, prefix_len
, obstack
),
208 /* Test whether or not NAMESPACE looks like it mentions an anonymous
209 namespace; return nonzero if so. */
212 cp_is_anonymous (const char *namespace)
214 return (strstr (namespace, "(anonymous namespace)")
218 /* The C++-specific version of name lookup for static and global
219 names. This makes sure that names get looked for in all namespaces
220 that are in scope. NAME is the natural name of the symbol that
221 we're looking for, BLOCK is the block that we're searching within,
222 DOMAIN says what kind of symbols we're looking for, and if SYMTAB is
223 non-NULL, we should store the symtab where we found the symbol in it. */
226 cp_lookup_symbol_nonlocal (const char *name
,
227 const struct block
*block
,
228 const domain_enum domain
)
231 const char *scope
= block_scope (block
);
233 sym
= lookup_namespace_scope (name
, block
, domain
, scope
, 0);
237 return cp_lookup_symbol_namespace (scope
, name
, block
, domain
, 1);
240 /* Look up NAME in the C++ namespace NAMESPACE. Other arguments are as in
241 cp_lookup_symbol_nonlocal. */
243 static struct symbol
*
244 cp_lookup_symbol_in_namespace (const char *namespace,
246 const struct block
*block
,
247 const domain_enum domain
)
249 if (namespace[0] == '\0')
251 return lookup_symbol_file (name
, block
, domain
, 0);
255 char *concatenated_name
= alloca (strlen (namespace) + 2 +
257 strcpy (concatenated_name
, namespace);
258 strcat (concatenated_name
, "::");
259 strcat (concatenated_name
, name
);
260 return lookup_symbol_file (concatenated_name
, block
,
261 domain
,cp_is_anonymous (namespace));
265 /* Used for cleanups to reset the "searched" flag incase
269 reset_directive_searched (void *data
)
271 struct using_direct
*direct
= data
;
272 direct
->searched
= 0;
275 /* Search for NAME by applying all import statements belonging
276 to BLOCK which are applicable in SCOPE.
277 If SEARCH_PARENTS the search will include imports which are applicable in
288 If SCOPE is "A::B" and SEARCH_PARENTS is true the imports of namespaces X
289 and Y will be considered. If SEARCH_PARENTS is false only the import of Y
292 static struct symbol
*
293 cp_lookup_symbol_imports (const char *scope
,
295 const struct block
*block
,
296 const domain_enum domain
,
297 const int search_parents
)
299 struct using_direct
*current
;
303 struct cleanup
*searched_cleanup
;
305 /* First, try to find the symbol in the given namespace. */
306 sym
= cp_lookup_symbol_in_namespace (scope
, name
, block
, domain
);
310 /* Go through the using directives. If any of them add new
311 names to the namespace we're searching in, see if we can find a
312 match by applying them. */
314 for (current
= block_using (block
);
316 current
= current
->next
)
318 len
= strlen (current
->import_dest
);
319 directive_match
= (search_parents
320 ? (strncmp (scope
, current
->import_dest
,
321 strlen (current
->import_dest
)) == 0
323 || scope
[len
] == ':' || scope
[len
] == '\0'))
324 : strcmp (scope
, current
->import_dest
) == 0);
326 /* If the import destination is the current scope or one of its ancestors then
328 if (directive_match
&& !current
->searched
)
330 /* Mark this import as searched so that the recursive call does not
332 current
->searched
= 1;
333 searched_cleanup
= make_cleanup (reset_directive_searched
, current
);
335 if (current
->alias
!= NULL
&& strcmp (name
, current
->alias
) == 0)
336 /* If the import is creating an alias and the alias matches the
337 sought name. Pass current->import_src as the NAME to direct the
338 search towards the aliased namespace. */
340 sym
= cp_lookup_symbol_in_namespace (scope
,
345 else if (current
->alias
== NULL
)
347 /* If this import statement creates no alias, pass current->inner as
348 NAMESPACE to direct the search towards the imported namespace. */
349 sym
= cp_lookup_symbol_imports (current
->import_src
,
355 current
->searched
= 0;
356 discard_cleanups (searched_cleanup
);
366 /* Searches for NAME in the current namespace, and by applying relevant import
367 statements belonging to BLOCK and its parents. SCOPE is the namespace scope
368 of the context in which the search is being evaluated. */
371 cp_lookup_symbol_namespace (const char *scope
,
373 const struct block
*block
,
374 const domain_enum domain
,
375 const int search_parents
)
379 /* Search for name in namespaces imported to this and parent blocks. */
380 while (block
!= NULL
)
382 sym
= cp_lookup_symbol_imports (scope
, name
, block
, domain
,
388 block
= BLOCK_SUPERBLOCK (block
);
394 /* Lookup NAME at namespace scope (or, in C terms, in static and
395 global variables). SCOPE is the namespace that the current
396 function is defined within; only consider namespaces whose length
397 is at least SCOPE_LEN. Other arguments are as in
398 cp_lookup_symbol_nonlocal.
400 For example, if we're within a function A::B::f and looking for a
401 symbol x, this will get called with NAME = "x", SCOPE = "A::B", and
402 SCOPE_LEN = 0. It then calls itself with NAME and SCOPE the same,
403 but with SCOPE_LEN = 1. And then it calls itself with NAME and
404 SCOPE the same, but with SCOPE_LEN = 4. This third call looks for
405 "A::B::x"; if it doesn't find it, then the second call looks for
406 "A::x", and if that call fails, then the first call looks for
409 static struct symbol
*
410 lookup_namespace_scope (const char *name
,
411 const struct block
*block
,
412 const domain_enum domain
,
418 if (scope
[scope_len
] != '\0')
420 /* Recursively search for names in child namespaces first. */
423 int new_scope_len
= scope_len
;
425 /* If the current scope is followed by "::", skip past that. */
426 if (new_scope_len
!= 0)
428 gdb_assert (scope
[new_scope_len
] == ':');
431 new_scope_len
+= cp_find_first_component (scope
+ new_scope_len
);
432 sym
= lookup_namespace_scope (name
, block
, domain
, scope
, new_scope_len
);
437 /* Okay, we didn't find a match in our children, so look for the
438 name in the current namespace. */
440 namespace = alloca (scope_len
+ 1);
441 strncpy (namespace, scope
, scope_len
);
442 namespace[scope_len
] = '\0';
443 return cp_lookup_symbol_in_namespace (namespace, name
, block
, domain
);
446 /* Look up NAME in BLOCK's static block and in global blocks. If
447 ANONYMOUS_NAMESPACE is nonzero, the symbol in question is located
448 within an anonymous namespace. Other arguments are as in
449 cp_lookup_symbol_nonlocal. */
451 static struct symbol
*
452 lookup_symbol_file (const char *name
,
453 const struct block
*block
,
454 const domain_enum domain
,
455 int anonymous_namespace
)
457 struct symbol
*sym
= NULL
;
459 sym
= lookup_symbol_static (name
, block
, domain
);
463 if (anonymous_namespace
)
465 /* Symbols defined in anonymous namespaces have external linkage
466 but should be treated as local to a single file nonetheless.
467 So we only search the current file's global block. */
469 const struct block
*global_block
= block_global_block (block
);
471 if (global_block
!= NULL
)
472 sym
= lookup_symbol_aux_block (name
, global_block
, domain
);
476 sym
= lookup_symbol_global (name
, block
, domain
);
482 /* Now call "lookup_possible_namespace_symbol". Symbols in here
483 claim to be associated to namespaces, but this claim might be
484 incorrect: the names in question might actually correspond to
485 classes instead of namespaces. But if they correspond to
486 classes, then we should have found a match for them above. So if
487 we find them now, they should be genuine. */
489 /* FIXME: carlton/2003-06-12: This is a hack and should eventually
490 be deleted: see comments below. */
492 if (domain
== VAR_DOMAIN
)
494 sym
= lookup_possible_namespace_symbol (name
);
502 /* Look up a type named NESTED_NAME that is nested inside the C++
503 class or namespace given by PARENT_TYPE, from within the context
504 given by BLOCK. Return NULL if there is no such nested type. */
507 cp_lookup_nested_type (struct type
*parent_type
,
508 const char *nested_name
,
509 const struct block
*block
)
511 switch (TYPE_CODE (parent_type
))
513 case TYPE_CODE_STRUCT
:
514 case TYPE_CODE_NAMESPACE
:
515 case TYPE_CODE_UNION
:
517 /* NOTE: carlton/2003-11-10: We don't treat C++ class members
518 of classes like, say, data or function members. Instead,
519 they're just represented by symbols whose names are
520 qualified by the name of the surrounding class. This is
521 just like members of namespaces; in particular,
522 lookup_symbol_namespace works when looking them up. */
524 const char *parent_name
= TYPE_TAG_NAME (parent_type
);
525 struct symbol
*sym
= cp_lookup_symbol_in_namespace (parent_name
,
529 if (sym
== NULL
|| SYMBOL_CLASS (sym
) != LOC_TYPEDEF
)
532 return SYMBOL_TYPE (sym
);
535 internal_error (__FILE__
, __LINE__
,
536 _("cp_lookup_nested_type called on a non-aggregate type."));
540 /* The C++-version of lookup_transparent_type. */
542 /* FIXME: carlton/2004-01-16: The problem that this is trying to
543 address is that, unfortunately, sometimes NAME is wrong: it may not
544 include the name of namespaces enclosing the type in question.
545 lookup_transparent_type gets called when the the type in question
546 is a declaration, and we're trying to find its definition; but, for
547 declarations, our type name deduction mechanism doesn't work.
548 There's nothing we can do to fix this in general, I think, in the
549 absence of debug information about namespaces (I've filed PR
550 gdb/1511 about this); until such debug information becomes more
551 prevalent, one heuristic which sometimes looks is to search for the
552 definition in namespaces containing the current namespace.
554 We should delete this functions once the appropriate debug
555 information becomes more widespread. (GCC 3.4 will be the first
556 released version of GCC with such information.) */
559 cp_lookup_transparent_type (const char *name
)
561 /* First, try the honest way of looking up the definition. */
562 struct type
*t
= basic_lookup_transparent_type (name
);
568 /* If that doesn't work and we're within a namespace, look there
570 scope
= block_scope (get_selected_block (0));
572 if (scope
[0] == '\0')
575 return cp_lookup_transparent_type_loop (name
, scope
, 0);
578 /* Lookup the the type definition associated to NAME in
579 namespaces/classes containing SCOPE whose name is strictly longer
580 than LENGTH. LENGTH must be the index of the start of a
581 component of SCOPE. */
584 cp_lookup_transparent_type_loop (const char *name
, const char *scope
,
587 int scope_length
= length
+ cp_find_first_component (scope
+ length
);
590 /* If the current scope is followed by "::", look in the next
592 if (scope
[scope_length
] == ':')
595 = cp_lookup_transparent_type_loop (name
, scope
, scope_length
+ 2);
600 full_name
= alloca (scope_length
+ 2 + strlen (name
) + 1);
601 strncpy (full_name
, scope
, scope_length
);
602 strncpy (full_name
+ scope_length
, "::", 2);
603 strcpy (full_name
+ scope_length
+ 2, name
);
605 return basic_lookup_transparent_type (full_name
);
608 /* Now come functions for dealing with symbols associated to
609 namespaces. (They're used to store the namespaces themselves, not
610 objects that live in the namespaces.) These symbols come in two
611 varieties: if we run into a DW_TAG_namespace DIE, then we know that
612 we have a namespace, so dwarf2read.c creates a symbol for it just
613 like normal. But, unfortunately, versions of GCC through at least
614 3.3 don't generate those DIE's. Our solution is to try to guess
615 their existence by looking at demangled names. This might cause us
616 to misidentify classes as namespaces, however. So we put those
617 symbols in a special block (one per objfile), and we only search
618 that block as a last resort. */
620 /* FIXME: carlton/2003-06-12: Once versions of GCC that generate
621 DW_TAG_namespace have been out for a year or two, we should get rid
622 of all of this "possible namespace" nonsense. */
624 /* Allocate everything necessary for the possible namespace block
625 associated to OBJFILE. */
628 initialize_namespace_symtab (struct objfile
*objfile
)
630 struct symtab
*namespace_symtab
;
631 struct blockvector
*bv
;
634 namespace_symtab
= allocate_symtab ("<<C++-namespaces>>", objfile
);
635 namespace_symtab
->language
= language_cplus
;
636 namespace_symtab
->free_code
= free_nothing
;
637 namespace_symtab
->dirname
= NULL
;
639 bv
= obstack_alloc (&objfile
->objfile_obstack
,
640 sizeof (struct blockvector
)
641 + FIRST_LOCAL_BLOCK
* sizeof (struct block
*));
642 BLOCKVECTOR_NBLOCKS (bv
) = FIRST_LOCAL_BLOCK
+ 1;
643 BLOCKVECTOR (namespace_symtab
) = bv
;
645 /* Allocate empty GLOBAL_BLOCK and STATIC_BLOCK. */
647 bl
= allocate_block (&objfile
->objfile_obstack
);
648 BLOCK_DICT (bl
) = dict_create_linear (&objfile
->objfile_obstack
,
650 BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
) = bl
;
651 bl
= allocate_block (&objfile
->objfile_obstack
);
652 BLOCK_DICT (bl
) = dict_create_linear (&objfile
->objfile_obstack
,
654 BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
) = bl
;
656 /* Allocate the possible namespace block; we put it where the first
657 local block will live, though I don't think there's any need to
658 pretend that it's actually a local block (e.g. by setting
659 BLOCK_SUPERBLOCK appropriately). We don't use the global or
660 static block because we don't want it searched during the normal
661 search of all global/static blocks in lookup_symbol: we only want
662 it used as a last resort. */
664 /* NOTE: carlton/2003-09-11: I considered not associating the fake
665 symbols to a block/symtab at all. But that would cause problems
666 with lookup_symbol's SYMTAB argument and with block_found, so
667 having a symtab/block for this purpose seems like the best
670 bl
= allocate_block (&objfile
->objfile_obstack
);
671 BLOCK_DICT (bl
) = dict_create_hashed_expandable ();
672 BLOCKVECTOR_BLOCK (bv
, FIRST_LOCAL_BLOCK
) = bl
;
674 namespace_symtab
->free_func
= free_namespace_block
;
676 objfile
->cp_namespace_symtab
= namespace_symtab
;
679 /* Locate the possible namespace block associated to OBJFILE,
680 allocating it if necessary. */
682 static struct block
*
683 get_possible_namespace_block (struct objfile
*objfile
)
685 if (objfile
->cp_namespace_symtab
== NULL
)
686 initialize_namespace_symtab (objfile
);
688 return BLOCKVECTOR_BLOCK (BLOCKVECTOR (objfile
->cp_namespace_symtab
),
692 /* Free the dictionary associated to the possible namespace block. */
695 free_namespace_block (struct symtab
*symtab
)
697 struct block
*possible_namespace_block
;
699 possible_namespace_block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab
),
701 gdb_assert (possible_namespace_block
!= NULL
);
702 dict_free (BLOCK_DICT (possible_namespace_block
));
705 /* Ensure that there are symbols in the possible namespace block
706 associated to OBJFILE for all initial substrings of NAME that look
707 like namespaces or classes. NAME should end in a member variable:
708 it shouldn't consist solely of namespaces. */
711 cp_check_possible_namespace_symbols (const char *name
, struct objfile
*objfile
)
713 check_possible_namespace_symbols_loop (name
,
714 cp_find_first_component (name
),
718 /* This is a helper loop for cp_check_possible_namespace_symbols; it
719 ensures that there are symbols in the possible namespace block
720 associated to OBJFILE for all namespaces that are initial
721 substrings of NAME of length at least LEN. It returns 1 if a
722 previous loop had already created the shortest such symbol and 0
725 This function assumes that if there is already a symbol associated
726 to a substring of NAME of a given length, then there are already
727 symbols associated to all substrings of NAME whose length is less
728 than that length. So if cp_check_possible_namespace_symbols has
729 been called once with argument "A::B::C::member", then that will
730 create symbols "A", "A::B", and "A::B::C". If it is then later
731 called with argument "A::B::D::member", then the new call will
732 generate a new symbol for "A::B::D", but once it sees that "A::B"
733 has already been created, it doesn't bother checking to see if "A"
734 has also been created. */
737 check_possible_namespace_symbols_loop (const char *name
, int len
,
738 struct objfile
*objfile
)
740 if (name
[len
] == ':')
743 int next_len
= len
+ 2;
745 next_len
+= cp_find_first_component (name
+ next_len
);
746 done
= check_possible_namespace_symbols_loop (name
, next_len
,
750 done
= check_one_possible_namespace_symbol (name
, len
, objfile
);
758 /* Check to see if there's already a possible namespace symbol in
759 OBJFILE whose name is the initial substring of NAME of length LEN.
760 If not, create one and return 0; otherwise, return 1. */
763 check_one_possible_namespace_symbol (const char *name
, int len
,
764 struct objfile
*objfile
)
766 struct block
*block
= get_possible_namespace_block (objfile
);
767 char *name_copy
= alloca (len
+ 1);
770 memcpy (name_copy
, name
, len
);
771 name_copy
[len
] = '\0';
772 sym
= lookup_block_symbol (block
, name_copy
, VAR_DOMAIN
);
778 type
= init_type (TYPE_CODE_NAMESPACE
, 0, 0, name_copy
, objfile
);
780 TYPE_TAG_NAME (type
) = TYPE_NAME (type
);
782 sym
= obstack_alloc (&objfile
->objfile_obstack
, sizeof (struct symbol
));
783 memset (sym
, 0, sizeof (struct symbol
));
784 SYMBOL_LANGUAGE (sym
) = language_cplus
;
785 /* Note that init_type copied the name to the objfile's
787 SYMBOL_SET_NAMES (sym
, TYPE_NAME (type
), len
, 0, objfile
);
788 SYMBOL_CLASS (sym
) = LOC_TYPEDEF
;
789 SYMBOL_TYPE (sym
) = type
;
790 SYMBOL_DOMAIN (sym
) = VAR_DOMAIN
;
792 dict_add_symbol (BLOCK_DICT (block
), sym
);
800 /* Look for a symbol named NAME in all the possible namespace blocks.
801 If one is found, return it. */
803 static struct symbol
*
804 lookup_possible_namespace_symbol (const char *name
)
806 struct objfile
*objfile
;
808 ALL_OBJFILES (objfile
)
812 sym
= lookup_block_symbol (get_possible_namespace_block (objfile
),
822 /* Print out all the possible namespace symbols. */
825 maintenance_cplus_namespace (char *args
, int from_tty
)
827 struct objfile
*objfile
;
828 printf_unfiltered (_("Possible namespaces:\n"));
829 ALL_OBJFILES (objfile
)
831 struct dict_iterator iter
;
834 ALL_BLOCK_SYMBOLS (get_possible_namespace_block (objfile
), iter
, sym
)
836 printf_unfiltered ("%s\n", SYMBOL_PRINT_NAME (sym
));
841 /* Provide a prototype to silence -Wmissing-prototypes. */
842 extern initialize_file_ftype _initialize_cp_namespace
;
845 _initialize_cp_namespace (void)
847 add_cmd ("namespace", class_maintenance
, maintenance_cplus_namespace
,
848 _("Print the list of possible C++ namespaces."),
849 &maint_cplus_cmd_list
);