Re: RELEASE BLOCKER: Linux doesn't follow x86/x86-64 ABI wrt direction flag

From: H.J. Lu
Date: Thu Mar 06 2008 - 10:43:38 EST


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@xxxxxxxxx> wrote:
>
> On 3/6/08, Olivier Galibert <galibert@xxxxxxxxx> 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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