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

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Message-ID: <84fc9c000803051332q2f2eedeej7d3c0509e698cabf@mail.gmail.com>
Date:	Wed, 5 Mar 2008 22:32:34 +0100
From:	"Richard Guenther" <richard.guenther@...il.com>
To:	"Joe Buck" <Joe.Buck@...opsys.com>
Cc:	"Michael Matz" <matz@...e.de>, "Jan Hubicka" <hubicka@....cz>,
	"Aurelien Jarno" <aurelien@...el32.net>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	gcc@....gnu.org
Subject: Re: RELEASE BLOCKER: Linux doesn't follow x86/x86-64 ABI wrt direction flag

On Wed, Mar 5, 2008 at 10:20 PM, Joe Buck <Joe.Buck@...opsys.com> wrote:
>
>
>  On Wed, 5 Mar 2008, Jan Hubicka wrote:
>  > > Linux kernel is disabling red zone and use kernel code model, yet the
>  > > ABI is not going to be adjusted for that.
>  > >
>  > > This is resonably easy to fix on kernel side in signal handling, or by
>  > > removing std usage completely
>
>  On Wed, Mar 05, 2008 at 10:02:07PM +0100, Michael Matz wrote:
>  > That is true.  But it requires updating the kernel to a fixed one if you
>  > want to run your programs compiled by 4.3 :-/  Not something we'd like to
>  > demand.
>
>  I changed the title just for emphasis.
>
>  I think that we can't ship 4.3.0 if signal handlers on x86/x86_64
>  platforms for both Linux and BSD systems will mysteriously (to the users)
>  fail, and it doesn't matter whose fault it is.

We didn't yet run into this issue and build openSUSE with 4.3 since more than
three month.

Richard.
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