Daniel Jacobowitz writes: > On Wed, Dec 19, 2007 at 05:54:10PM +0000, Andrew Haley wrote: > > > 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. > > > > Well, the type is the interface: there's nothing else it might be. > > >From the DWARF standard: > > Interface types are represented by debugging information entries with > the tag DW_TAG_interface_type. > > An interface type entry has a DW_AT_name attribute, whose value is a > null-terminated string containing the type name as it appears in the > source program. > > The members of an interface are represented by debugging information > entries that are owned by the interface type entry and that appear in > the same order as the corresponding declarations in the source > program.
OK, so the name is missing, and that's wrong. I should find out why. > So this is a declaration of an interface, but without a name. GDB is > doing the wrong thing with it, but it still seems wrong to me. Or do > Java interfaces have no name? > > > Anyway, on inspection it seems like read_type_die() in dwarf2read.c > > doesn't know how to handle DW_TAG_interface_type. This is rather odd, > > given that dwarf_tag_name() does know about interface types. > > That's just a complete transcription of the DWARF tags (at some point > in history). Right, so read_type_die() doesn't know how to handle DW_TAG_interface_type. The weird thing is that I have never seen this error mesage before today, and AFAIAA gcj has been generating these interface types for a long while. It seems to me that even if gcj did generate the name for the interface, gdb would still die because it doesn't have any handlers for DW_TAG_interface_type in dwarf2read.c Andrew. -- Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, UK Registered in England and Wales No. 3798903
