Question on PowerPC setjmp/longjmp ABI

[Geoff Keating]

> Date: Sat, 17 Feb 2001 17:24:54 -0800
> From: Richard Henderson <rth@twiddle.net>
> Cc: Geoff Keating <geoffk@redhat.com>, dmj+@andrew.cmu.edu,
>         libc-alpha@sourceware.cygnus.com

> > Aside from that, the Altivec Programmers Interface Manual says that 
> > altivec registers 20-31 are to be saved by setjmp/longjmp on the SVR4 ABI.
> 
> Then there _are_ ABI changes -- the ABI before Altivec is not
> completely compatible with the one after.

Yes.  I want to transition powerpc-linux from the current ABI to a
different one, with a number of improvements including Altivec
support and better SVR4 ABI compatibility.

-- 
- Geoffrey Keating <geoffk@geoffk.org>