From: Andi Kleen <ak@muc.de>
To: Jamie Lokier <jamie@shareable.org>
Cc: Andi Kleen <ak@muc.de>, linux-kernel@vger.kernel.org, jh@suse.cz
Subject: Re: stack alignment in the kernel was Re: nasm over gas?
Date: Sun, 14 Sep 2003 16:13:46 +0200 [thread overview]
Message-ID: <20030914141346.GA1194@averell> (raw)
In-Reply-To: <20030914135431.GB16525@mail.jlokier.co.uk>
On Sun, Sep 14, 2003 at 02:54:31PM +0100, Jamie Lokier wrote:
> > A compiler option to turn it off would make sense to save .text space
> > and eliminate these useless instructions. Especially since the kernel
> > entry points make no attempt to align the stack to 16 byte anyways,
> > so most likely the stack adjustments do not even work.
>
> There is an option:
>
> -mpreferred-stack-boundary=2
Hmm. The i386 Makefile sets that already. Where exactly did you see
bogus stack adjustments in kernel code?
-Andi
next prev parent reply other threads:[~2003-09-14 14:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <rZQN.83u.21@gated-at.bofh.it>
[not found] ` <saVL.7lR.1@gated-at.bofh.it>
[not found] ` <soFo.16a.1@gated-at.bofh.it>
[not found] ` <ssJa.6M6.25@gated-at.bofh.it>
[not found] ` <tcVB.rs.3@gated-at.bofh.it>
2003-09-08 12:03 ` nasm over gas? Ihar 'Philips' Filipau
2003-09-08 13:53 ` Richard B. Johnson
2003-09-08 16:10 ` Jamie Lokier
2003-09-08 16:17 ` Jamie Lokier
2003-09-08 16:45 ` Ihar 'Philips' Filipau
2003-09-08 16:58 ` Jamie Lokier
2003-09-08 17:59 ` William Lee Irwin III
[not found] ` <uw6d.3hD.35@gated-at.bofh.it>
[not found] ` <uxED.5Rz.9@gated-at.bofh.it>
[not found] ` <uYbM.26o.3@gated-at.bofh.it>
[not found] ` <uZUr.4QR.25@gated-at.bofh.it>
[not found] ` <v4qU.3h1.27@gated-at.bofh.it>
[not found] ` <vog2.7k4.23@gated-at.bofh.it>
2003-09-13 23:57 ` stack alignment in the kernel was " Andi Kleen
2003-09-14 13:54 ` Jamie Lokier
2003-09-14 14:13 ` Andi Kleen [this message]
2003-09-14 15:56 ` Jamie Lokier
2003-09-14 22:27 ` Jan Hubicka
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