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Re: Question on PowerPC setjmp/longjmp ABI
> 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>