[PATCH] PPC enable Altivec for setjmp/longjmp part 1 of 5

[Andreas Jaeger]

Steve Munroe <sjmunroe@us.ibm.com> writes:

> These patches provide the setjmp/longjmp support to save/restore the
> non-volitile vector registers per the ABI. This is a bit more
> complicated then the *context functions because there are 3 layers, 2
> of which involve arch independent libc/nplt/linuxthreads code.
>
> Linuxthreads/nplt override longjmp/siglongjmp which call
> __libc_longjmp/__libc_siglongjmp. __libc_longjmp is strong alias for
> __libc_siglongjmp which saves the sigprocmask into sigjmp_buf before
> calling the arch dependent __longjmp. The problem is that the
> __saved_mask follows the jmp_buf within the sigjmp_buf. As the size of
> jmp_buf is changing we need to support two verions (old/new) if the
> sigjmp_buf which implies we need to version all three layers of the
> longjmp/setjmp function stack.
>
> The following patch provides the PPC specific version code for
> longjmp.c, setjmp.c, sigjmp.c, plus novmx versions of the setjmp.h and
> longjmp.c, setjmp.c, sigjmp.c.

Uli, what is the status of these patches?  Are they ok?  I can commit
them if you like...

Andreas
-- 
 Andreas Jaeger, aj@suse.de, http://www.suse.de/~aj
  SuSE Linux AG, Maxfeldstr. 5, 90409 Nürnberg, Germany
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