Mark Kettenis (mark.kettenis@xs4all.nl):

> I had wanted to give this a spin on OpenBSD/sparc, but unfortunately
> my SS20 seems to have hardware issues.  Origionally I thought the
> changes were restricted to 32-bit code.  But it seems this code is use
> for 64-bit code as well.  So I'll give this a spin on an
> OpenBSD/sparc64 machine tonight.

OK, perfect. Thank you.

In any case, I have fixed the space inconsistencies that I introduced;
the new patch is in attachment. I noticed that there are other
inconsistencies that are worth fixing in sparc_skip_stack_check (on
clr instructions in particular); I'll do that on a separate patch.