Saving to 32 bits of GPRs in signal context

[Benjamin Herrenschmidt]

On Wed, 2007-05-30 at 13:59 +0200, Segher Boessenkool wrote:
> This prctl() is needed if you want to support DSOs containing
> 64-bit insns.  It would be nice to have some ELF flag as well
> though, so most of this can be handled automatically.

Actually, it's the opposite... the prctl becomes a problem if you have
libs wanting to use 64 bits for optims

Ben.