PATCH: Use 64-bit anonymouse union on x32 TCB pointer_guard

[Mike Frysinger]

On Thursday 17 May 2012 23:52:21 H.J. Lu wrote:
> +  union
> +    {
> +      /* Needed for 64-bit PTR_MANGLE/PTR_DEMANGLE.  */
> +      uintptr_t pointer_guard;
> +      int64_t __pointer_guard_word;
> +    };

probably doesn't matter, but should this be uint64_t ?
-mike
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