Re: Barrier / atomic operations on multiprocessors.

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Barrier / atomic operations on multiprocessors.
\ Ray Whitmer (27 May 2006)
. \ Brian Dessent (27 May 2006)

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Subject:	Re: Barrier / atomic operations on multiprocessors.
Group:	Gcc-help
From:	Brian Dessent
Date:	27 May 2006

Ray Whitmer wrote:

> Is there a generic way to access efficient platform-appropriate memory
> barriers (also compare and swap) in any arbitrary C or C++ program
> compiled under gcc (not just a compiler ordering directive, but
> extending to hardware guarantees)?
>
> If it is documented somewhere, I apologize.

Well, there's <http://gcc.gnu.org/onlinedocs/gcc/Atomic-Builtins.html>.

Brian