[Bug libgcj/21906] New: hang when invoking abstract method

[tromey at gcc dot gnu dot org]

Try the test case "abstract.fail.abstract2" from the mauve
"verify" module.  (You will need jasmin to build this.)

This test case gets a SEGV in the unwinder:

Program received signal SIGSEGV, Segmentation fault.
uw_frame_state_for (context=0xbfff9998, fs=0xbfff98d8) at linux-unwind.h:125
125	in linux-unwind.h

Continuing results in the same SEGV endlessly.


The underlying cause of this is that a _Jv_Method has 0x0 as its
'ncode'.  Instead it would be more correct to put
'throw new AbstractMethodError' there.  I have a partial patch
to do this (the compiler should also do this...).
However I think the unwinder crashing is a bug regardless of whether
this other problem is fixed.

-- 
           Summary: hang when invoking abstract method
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libgcj
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tromey at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
                    dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21906