From owner-freebsd-stable  Tue Aug  7 13:32:16 2001
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Date: Wed, 08 Aug 2001 06:32:03 +1000
From: Peter Jeremy <peter.jeremy@alcatel.com.au>
Subject: Re: Current stable (fresh sup) broken for no opt
In-reply-to: <0108070132380H.03705@prime.vsservices.com>; from
 gclarkii@geektech.com on Tue, Aug 07, 2001 at 01:32:38AM -0500
To: GB Clark II <gclarkii@geektech.com>
Cc: freebsd-stable@FreeBSD.ORG
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On 2001-Aug-07 01:32:38 -0500, GB Clark II <gclarkii@geektech.com> wrote:
>When I compile a kernel with no optimiztion(sp) it will bomb in
>atomic with a problem in the asm.  With -O it works fine.

I presume you're talking about the i386 here...

There are problems with gcc's constraint checking - last time I tried,
I couldn't write a set of operand constraints (for these atomic
operations) that would compile both with and without "-O".  You could
try using the "gcc <= 2.8 version" of the ATOMIC_ASM macro - based on
a quick check, this appears to work correctly with "-O0".

Peter

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