v3 C++ ABI Section 2.4.I.2.b. Fortunately the ABI guarantees that the
vtable pointer will be located at the beginning of the object, so we can
bypass the casting. Verify that the TYPE_VPTR_FIELDNO is in fact at the
- start of whichever baseclass it resides in, as a sanity measure. */
+ start of whichever baseclass it resides in, as a sanity measure - iff
+ we have debugging information for that baseclass. */
vbasetype = TYPE_VPTR_BASETYPE (type);
- if (TYPE_FIELD_BITPOS (vbasetype, TYPE_VPTR_FIELDNO (vbasetype)) != 0)
+ if (TYPE_VPTR_FIELDNO (vbasetype) < 0)
+ fill_in_vptr_fieldno (vbasetype);
+
+ if (TYPE_VPTR_FIELDNO (vbasetype) >= 0
+ && TYPE_FIELD_BITPOS (vbasetype, TYPE_VPTR_FIELDNO (vbasetype)) != 0)
error ("Illegal vptr offset in class %s",
TYPE_NAME (vbasetype) ? TYPE_NAME (vbasetype) : "<unknown>");
static void
init_gnuv3_ops (void)
{
- vtable_type_gdbarch_data = register_gdbarch_data (build_gdb_vtable_type, 0);
+ vtable_type_gdbarch_data = register_gdbarch_data (build_gdb_vtable_type);
gnu_v3_abi_ops.shortname = "gnu-v3";
gnu_v3_abi_ops.longname = "GNU G++ Version 3 ABI";