Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754865Ab0LIDiG (ORCPT ); Wed, 8 Dec 2010 22:38:06 -0500 Received: from mprc.pku.edu.cn ([162.105.203.9]:39597 "EHLO mprc.pku.edu.cn" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750698Ab0LIDiE (ORCPT ); Wed, 8 Dec 2010 22:38:04 -0500 From: "Guan Xuetao" To: "'Arnd Bergmann'" Cc: , References: <201011301754.17829.arnd@arndb.de> <011401cb96c0$b7dca8d0$2795fa70$@mprc.pku.edu.cn> <201012081353.44927.arnd@arndb.de> In-Reply-To: <201012081353.44927.arnd@arndb.de> Subject: RE: [PATCH] Unicore architecture patch review, part 2 Date: Thu, 9 Dec 2010 11:37:58 +0800 Message-ID: <017801cb9752$79a48a50$6ced9ef0$@mprc.pku.edu.cn> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQEGWQxFgenXGrFHNnUO9LkE1o8/SQGsRI17Ac4HSG+VBhzd4A== Content-Language: zh-cn Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1544 Lines: 44 > -----Original Message----- > From: linux-arch-owner@vger.kernel.org [mailto:linux-arch- > owner@vger.kernel.org] On Behalf Of Arnd Bergmann > Sent: Wednesday, December 08, 2010 8:54 PM > To: Guan Xuetao > Cc: linux-arch@vger.kernel.org; linux-kernel@vger.kernel.org > Subject: Re: [PATCH] Unicore architecture patch review, part 2 > > On Wednesday 08 December 2010, Guan Xuetao wrote: > > > > > @@ -0,0 +1,390 @@ > > > > +/* 0 */ CALL(sys_restart_syscall) > > > > + CALL(sys_exit) > > > > + CALL(sys_fork_wrapper) > > > > + CALL(sys_read) > > > > + CALL(sys_write) > > > > +/* 5 */ CALL(sys_open) > > > > + CALL(sys_close) > > > > > > When you start using the generic unistd.h file, you can also replace > > > this table with something like arch/tile/kernel/sys.c. > > Well. I will use the generic unistd.h in UniCore-64 version. > > I thought you had agreed to break ABI compatibility with your existing code > base and use the generic ABI everywhere. > > Did I misunderstand you or did you make up your mind since then? > We do define new 32-bit ABI work at present, and I will use generic unistd in new ABI. But existing machines must be maintained, so many codes need remain compatibility. Then, it would be a long-term work, and 64-bit coding will be before that. Guan Xuetao -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/