https://gcc.gnu.org/bugzilla/show_bug.cgi?id=8188
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2005-12-28 06:14:46 |2024-1-23
CC| |jason at gcc dot gnu.org,
| |tromey at gcc dot gnu.org
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Reconfirmed. With modern dwarf we now emit even
<1><4c>: Abbrev Number: 11 (DW_TAG_class_type)
<4d> DW_AT_name : B
<4f> DW_AT_byte_size : 16
<50> DW_AT_decl_file : 1
<51> DW_AT_decl_line : 9
<52> DW_AT_decl_column : 7
<53> DW_AT_containing_type: <0x4c>
<57> DW_AT_sibling : <0x106>
which is a self-reference ...
The code adding this reads
/* GNU extension: Record what type our vtable lives in. */
if (TYPE_VFIELD (type))
{
tree vtype = DECL_FCONTEXT (TYPE_VFIELD (type));
gen_type_die (vtype, context_die);
add_AT_die_ref (type_die, DW_AT_containing_type,
lookup_type_die (vtype));
(there are more "GNU extension" uses of DW_AT_containing_type)
Jason added this in 1996 with the commit message
x
(sic)
What does gdb do with all those "extension" uses of DW_AT_containing_type?
Can we just drop them all?
