On Fri, Jul 01, 2016 at 10:04:50 -0700, Richard Henderson wrote:
(snip)
> [rth: Rearrange 128-bit cmpxchg helper. Enforce alignment on LL.]
>
> Signed-off-by: Emilio G. Cota
> Message-Id: <1467054136-10430-28-git-send-email-c...@braap.org>
> Signed-off-by: Richard Henderson
> ---
> target-arm/
From: "Emilio G. Cota"
Emulating LL/SC with cmpxchg is not correct, since it can
suffer from the ABA problem. Portable parallel code, however,
is written assuming only cmpxchg--and not LL/SC--is available.
This means that in practice emulating LL/SC with cmpxchg is
a viable alternative.
The appe
