[klibc] alpha: fix signal handler setup on DEC Alpha

We need a five-argument rt_sigaction syscall form with a hidden
argument but that can be NULL as the kernel sets it up for us
better than we can (easily) do, at speed cost.

Signed-off-by: Thorsten Glaser <tg@mirbsd.org>
[ Mark alpha as working. -maks ]
Signed-off-by: maximilian attems <max@stro.at>
3 files changed