Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751252AbWITNUl (ORCPT ); Wed, 20 Sep 2006 09:20:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751253AbWITNUl (ORCPT ); Wed, 20 Sep 2006 09:20:41 -0400 Received: from mail4.hitachi.co.jp ([133.145.228.5]:6331 "EHLO mail4.hitachi.co.jp") by vger.kernel.org with ESMTP id S1751252AbWITNUk (ORCPT ); Wed, 20 Sep 2006 09:20:40 -0400 Message-ID: <4511401B.4070809@hitachi.com> Date: Wed, 20 Sep 2006 22:20:27 +0900 From: Masami Hiramatsu Organization: Systems Development Lab., Hitachi, Ltd., Japan User-Agent: Thunderbird 1.5.0.7 (Windows/20060909) MIME-Version: 1.0 To: Mathieu Desnoyers Cc: "Frank Ch. Eigler" , Paul Mundt , linux-kernel , Jes Sorensen , Andrew Morton , Tom Zanussi , Richard J Moore , Michel Dagenais , Christoph Hellwig , Greg Kroah-Hartman , Thomas Gleixner , William Cohen , "Martin J. Bligh" , Ingo Molnar , ltt-dev@shafik.org, systemtap@sources.redhat.com Subject: Re: [PATCH] Linux Kernel Markers References: <20060918234502.GA197@Krystal> In-Reply-To: <20060918234502.GA197@Krystal> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1341 Lines: 39 Hi, Mathieu Desnoyers wrote: > Hello, > > Following this huge discussion thread, I tried to come with a marker mechanism > (which is something everyone seems to agree that is a necessity) that would be > useful to each kind of tracing (dynamic and static) (concerned projects : > SystemTAP, LKET, LKST, LTTng) and even combinations of those. Religious > considerations aside, I really think that this kind of generic markup is > necessary to fill *everybody*'s need. If I forgot about a specific genericity > aspect, please tell me. > > I take for agreed that both static and dynamic tracing are useful for different > needs and that a full markup must support both and combinations, letting the > user or the distribution choose. Basically, I like this static marker concept. But I wonder why wouldn't you use the architecture-independent marker which SystemTap already supports. If we use NOPs, it highly depends on architecture, and is hard to port. Thanks, -- Masami HIRAMATSU 2nd Research Dept. Hitachi, Ltd., Systems Development Laboratory E-mail: masami.hiramatsu.pt@hitachi.com - 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/