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Message-ID: <6dc9ffc80803060743h502fc96bj6117ef87a8555c3a@mail.gmail.com>
Date: Thu, 6 Mar 2008 07:43:16 -0800
From: "H.J. Lu" <hjl.tools@gmail.com>
To: NightStrike <nightstrike@gmail.com>
Subject: Re: RELEASE BLOCKER: Linux doesn't follow x86/x86-64 ABI wrt direction flag
Cc: "Olivier Galibert" <galibert@pobox.com>, "H. Peter Anvin" <hpa@zytor.com>,
       "Chris Lattner" <clattner@apple.com>, "Michael Matz" <matz@suse.de>,
       "Richard Guenther" <richard.guenther@gmail.com>,
       "Joe Buck" <Joe.Buck@synopsys.com>, "Jan Hubicka" <hubicka@ucw.cz>,
       "Aurelien Jarno" <aurelien@aurel32.net>, linux-kernel@vger.kernel.org,
       gcc@gcc.gnu.org
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I agree with it. There is no  right or wrong here Let's start from
scratch and figure out
what is the best way to handle this, assuming we are defining a new psABI.

H.J.
On Thu, Mar 6, 2008 at 7:37 AM, NightStrike <nightstrike@gmail.com> wrote:
>
> On 3/6/08, Olivier Galibert <galibert@pobox.com> wrote:
>  > On Wed, Mar 05, 2008 at 05:12:07PM -0800, H. Peter Anvin wrote:
>  > > It's a kernel bug, and it needs to be fixed.
>  >
>  > I'm not convinced.  It's been that way for 15 years, it's that way in
>  > the BSD kernels, at that point it's a feature.  The bug is in the
>  > documentation, nowhere else.  And in gcc for blindly trusting the
>  > documentation.
>
>  The issue should not be evaluated as: "It's always been that way,
>  therefore, it's right."  Instead, it should be: "What's the right way
>  to do it?"
>
>  You don't just change documentation because no existing code meets the
>  requirement -- UNLESS -- the non-conforming code is actually the right
>  way to do things.
>
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