From: Willy Tarreau <willy@w.ods.org>
To: Antonio Vargas <wind@cocodriloo.com>
Cc: "Richard B. Johnson" <root@chaos.analogic.com>,
"J.A. Magallon" <jamagallon@able.es>,
Lista Linux-Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [2.4] gcc3 warns about type-punned pointers ?
Date: Sat, 30 Aug 2003 11:56:25 +0200 [thread overview]
Message-ID: <20030830095625.GN734@alpha.home.local> (raw)
In-Reply-To: <20030830062744.GE640@wind.cocodriloo.com>
On Sat, Aug 30, 2003 at 08:27:44AM +0200, Antonio Vargas wrote:
> That was my fault for introducing an exchange instruction
> into an assignement discussion, but I don't know of any
> x86 instruction which can load 64bits to memory atomically,
> is there any???
perhaps "pusha", but it will load fare more than you need, and I don't know
if it's lockable.
Some MMX instruction might do it too, although not sure.
Willy
next prev parent reply other threads:[~2003-08-30 10:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-28 22:35 [2.4] gcc3 warns about type-punned pointers ? J.A. Magallon
2003-08-29 15:24 ` Antonio Vargas
2003-08-29 18:48 ` J.A. Magallon
2003-08-29 19:41 ` Richard B. Johnson
2003-08-30 6:27 ` Antonio Vargas
2003-08-30 9:56 ` Willy Tarreau [this message]
2003-08-30 11:31 ` Jamie Lokier
2003-08-30 2:37 ` insecure
2003-08-30 12:33 ` Mikulas Patocka
2003-08-30 13:09 ` Gabriel Paubert
2003-08-30 23:27 ` insecure
2003-08-31 1:27 ` J.A. Magallon
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