* gdbtypes.h (TYPE_FLAG_STUB_SUPPORTED, TYPE_STUB_SUPPORTED): New

macros.
(TYPE_IS_OPAQUE): Empty vs. opaque structures are now
distinct on the TYPE_STUB_SUPPORTED debug targets.
* dwarf2read.c (read_structure_type): Set TYPE_FLAG_STUB_SUPPORTED.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 0e7168f..eb7d253 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,11 @@
+2007-04-11  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
+       * gdbtypes.h (TYPE_FLAG_STUB_SUPPORTED, TYPE_STUB_SUPPORTED): New
+       macros.
+       (TYPE_IS_OPAQUE): Empty vs. opaque structures are now
+       distinct on the TYPE_STUB_SUPPORTED debug targets.
+       * dwarf2read.c (read_structure_type): Set TYPE_FLAG_STUB_SUPPORTED.
+
 2007-04-11  Joel Brobecker  <brobecker@adacore.com>
 
        * sparc-tdep.c (X_RS2): New macro.

diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 0fb3500..d0a1bb1 100644 (file)
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -3879,6 +3879,7 @@ read_structure_type (struct die_info *die, struct dwarf2_cu *cu)
       TYPE_LENGTH (type) = 0;
     }
 
+  TYPE_FLAGS (type) |= TYPE_FLAG_STUB_SUPPORTED;
   if (die_is_declaration (die, cu))
     TYPE_FLAGS (type) |= TYPE_FLAG_STUB;
 

diff --git a/gdb/gdbtypes.h b/gdb/gdbtypes.h
index 8cbd26c..39ed5cc 100644 (file)
--- a/gdb/gdbtypes.h
+++ b/gdb/gdbtypes.h
@@ -319,6 +319,14 @@ enum type_code
 
 #define TYPE_FLAG_FIXED_INSTANCE (1 << 15)
 
+/* This debug target supports TYPE_STUB(t).  In the unsupported case we have to
+   rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE ().
+   TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only guessed
+   the TYPE_STUB(t) value (see dwarfread.c).  */
+
+#define TYPE_FLAG_STUB_SUPPORTED (1 << 16)
+#define TYPE_STUB_SUPPORTED(t)   (TYPE_FLAGS (t) & TYPE_FLAG_STUB_SUPPORTED)
+
 /*  Array bound type.  */
 enum array_bound_type
 {
@@ -969,7 +977,8 @@ extern void allocate_cplus_struct_type (struct type *);
 #define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) ||        \
                                    (TYPE_CODE (thistype) == TYPE_CODE_UNION))        && \
                                   (TYPE_NFIELDS (thistype) == 0)                     && \
-                                  (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)))
+                                  (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)) && \
+                                  (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
 
 struct builtin_type
 {