Strange error message from gdb

[Daniel Jacobowitz]

On Wed, Dec 19, 2007 at 05:21:50PM +0000, Andrew Haley wrote:
> Die: DW_TAG_interface_type (abbrev = 23, offset = 4181)
> 	has children: FALSE
> 	attributes:
> 		DW_AT_declaration (DW_FORM_flag) flag: TRUE
> Dwarf Error: Cannot find type of die [in module /home/aph/a.out]
> 
> I suppose this means that gcj is generating bad debug info, but I
> don't know what it's complaining about exactly, so I don't know how to
> fix it.
> 
> Here's the abbrev in question:
> 
>  <1><1055>: Abbrev Number: 23 (DW_TAG_interface_type)
>   <1056>     DW_AT_declaration : 1      

That DIE doesn't have any content.  It says "I am a declartion of an
interface".  But not which interface or what it's called or what the
type is.

I'd need a backtrace to be more specific, but in addition to bad debug
info this may be a limitation in GDB; it does not know anything about
DW_TAG_interface_type.

-- 
Daniel Jacobowitz
CodeSourcery