Fix for Bug 19851 (try 3) - Interlocked instruction support for ARM

[Alexandre Julliard]

Colin Fowler <elethiomel at gmail.com> writes:

> @@ -396,6 +396,88 @@
>                    "beq   $1,L0xchg_add\n\t"
>                    "mb")
>  
> +
> +#elif defined(__arm__)
> +
> +/* 
> + * Similar to the Sparc, many ARM CPUs lack the necessary 
> + * atomic instructions. Fall back in a similar way, but instead
> + * use pthreads. This solution is generic enough to work on 
> + * pretty much any CPU, but is still very fast thanks to 
> + * Linux's NPTLS.
> + */

Actually since it's generic there's no reason to put it in an __arm__
ifdef, it could simply be the default fallback.

-- 
Alexandre Julliard
julliard at winehq.org