Jun Sun <jsun@mvista.com> writes:
> Andreas Jaeger wrote:
> >
>
> > > saves/restores the FP registers in setjmp/longjmp, the
> >
> > Any ideas how this can be done?
> >
> > > model of "simply sending SIGILL/SIGFPE" will result
> > > in *all* processes being terminated with extreme prejudice,
> > > starting with init!
> >
>
> There is a patch for glibc2.0.7, which I think was done by Jay Carlson. It
> basically works for glibc2.0.6 as well. See the one for glibc2.0.6 attached
> below.
>
> I think the patch is not "clean", in the sense that you only want to apply it
> if you want to configure with "--without-fp". Otherwise the patch will break
> other configurations.
>
> Jun--- glibc-2.0.6/sysdeps/mips/__longjmp.c.orig-rpm Sat Sep 11 00:01:44 1999
> +++ glibc-2.0.6/sysdeps/mips/__longjmp.c Sat Sep 11 00:02:36 1999
> @@ -35,6 +35,7 @@
> along the way. */
> register int val asm ("a1");
>
> +#ifdef __HAVE_FPU__
I looked through the whole of glibc and GCC and __HAVE_FPU__ is nowhere
defined for MIPS. __HAVE_FPU__ is defined for m68k in GCC but that's
the only platform.
Therefore I don't think the patch makes any sense at all,
Andreas
--
Andreas Jaeger
SuSE Labs aj@suse.de
private aj@arthur.inka.de
http://www.suse.de/~aj
