[re] Java executables can abort trying to access a null pointer in a leaf function

Thu Feb 2 18:02:00 GMT 2006

Andrew Haley wrote:
> tsuraan writes:
> > > Someone will need the assembly and/or object file for a small test case
> > > to examine the DWARF frame data.
> > 
> > I can send a tarball of the entire directory, if desired. It's 14 KB
> > without the core dump and 1.2MB with it. I don't know what filesize
> > starts to anger people on this list, so I'll just send the smaller
> > tarball for now. If the core is desired, I can send that too.
>> This looks OK to me: we are generating te null pointer check. 
>> Until we actually see the faulting instruction in gdb we're not going
> to get anywhere. Just load your program into gdb, run it, and tel us
> when it hits the SEGV.
>
Uh, I don't think there was a fault. There is an explicit call to 
_Jv_ThrowNullPointerException, then we abort because the unwinder fails.
David Daney.