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Re: atomic_*_barrier macros

From: RÃmi Denis-Courmont <remi at remlab dot net>
To: Matt Turner <mattst88 at gmail dot com>
Cc: libc-help at sourceware dot org
Date: Thu, 06 Aug 2009 08:59:25 +0200
Subject: Re: atomic_*_barrier macros
References: <b4198de60908051934r37633deeod2b6425e52c16027@mail.gmail.com>

On Wed, 5 Aug 2009 22:34:00 -0400, Matt Turner <mattst88@gmail.com> wrote:
> What's the correct thing to do here? Could we add atomic macros for
> needed platforms and export atomic.h?

With recent enough GCC, I think you can get a full R/W barrier with the
__sync_synchronize() built-in (there is no support for weaker ones though)
on about any platform.

-- 
RÃmi Denis-Courmont

References:
- atomic_*_barrier macros
  - From: Matt Turner

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