This is the mail archive of the
gdb-patches@sourceware.org
mailing list for the GDB project.
Re: [rfa] frame address size incorrect if address size != ptr size
On Aug 6 13:17, Mark Kettenis wrote:
> > Date: Fri, 6 Aug 2010 12:48:10 +0200
> > From: Corinna Vinschen <vinschen@redhat.com>
> >
> > And...
> >
> > > It would then be interesting to see whether *both* .debug_frame and
> > > .eh_frame work on xstormy16 ... you might be able to try the latter
> > > by building with -fasynchronous-unwind-tables.
> >
> > ... .eh_frame sections are never generated for XStormy16. The
> > -fasynchronous-unwind-tables option is a no-op.
>
> Is there no C++ exception exception handling on XStormy16? Or did
> nobody bother to do the work of switching it away from
> setjump/longjump-style exception handling?
XStormy16 is using SJLJ. And from the today's perspective I'm glad that
it hasn't been converted to DW2 EH, given the obvious problem with the
definition of the .eh_frame section.
There's also the problem that the .eh_frame section is rather big, and
that the section has to be loaded for EH to work. This is not a
terribly good idea for a very space constricted target like XStormy16.
Corinna
--
Corinna Vinschen
Cygwin Project Co-Leader
Red Hat