linux-kernel - Re: [RFC PATCH] x86: Unify include/asm-x86/linkage

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Message-ID: <20071205001945.GB10763@c2.user-mode-linux.org>
Date:	Tue, 4 Dec 2007 19:19:45 -0500
From:	Jeff Dike <jdike@...toit.com>
To:	Adrian Bunk <bunk@...nel.org>
Cc:	Harvey Harrison <harvey.harrison@...il.com>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH] x86: Unify include/asm-x86/linkage_[32|64].h

On Wed, Dec 05, 2007 at 12:15:19AM +0100, Adrian Bunk wrote:
> UML can't switch to the regparm(3) convention on i386 since it links 
> with userspace code, so if assembler code uses this calling convention 
> we need the C prototype of it annotated accordingly.

We're not talking about a global calling convention switch, right?
We're talking about selected functions only, in which case, the fact
that UML links against libc is irrelevant.

				Jeff

-- 
Work email - jdike at linux dot intel dot com
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