From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263367AbUJ2PiP (ORCPT ); Fri, 29 Oct 2004 11:38:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263386AbUJ2PgN (ORCPT ); Fri, 29 Oct 2004 11:36:13 -0400 Received: from colin2.muc.de ([193.149.48.15]:24580 "HELO colin2.muc.de") by vger.kernel.org with SMTP id S263373AbUJ2PLl (ORCPT ); Fri, 29 Oct 2004 11:11:41 -0400 Date: 29 Oct 2004 17:11:39 +0200 Date: Fri, 29 Oct 2004 17:11:39 +0200 From: Andi Kleen To: Linus Torvalds Cc: linux-os@analogic.com, Kernel Mailing List , Richard Henderson , Andrew Morton , Jan Hubicka Subject: Re: Semaphore assembly-code bug Message-ID: <20041029151139.GA73646@muc.de> References: <417550FB.8020404@drdos.com> <1098218286.8675.82.camel@mentorng.gurulabs.com> <41757478.4090402@drdos.com> <20041020034524.GD10638@michonline.com> <1098245904.23628.84.camel@krustophenia.net> <1098247307.23628.91.camel@krustophenia.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Btw, this is another case where we _really_ want "asmlinkage" to mean that > the compiler does not own the argument stack. Is there any chance of > getting a function attribute like that into future versions of gcc? > Richard, Jan, Andi? Or does it already exist somewhere? How about just using __attribute__((regparm(1))) ? Then the problem doesn't appear. Would be faster too. It should work reliable on all supported compilers. -Andi