Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754952AbZKWOhO (ORCPT ); Mon, 23 Nov 2009 09:37:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752246AbZKWOhN (ORCPT ); Mon, 23 Nov 2009 09:37:13 -0500 Received: from bombadil.infradead.org ([18.85.46.34]:47421 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751399AbZKWOhM (ORCPT ); Mon, 23 Nov 2009 09:37:12 -0500 Date: Mon, 23 Nov 2009 12:37:02 -0200 From: Arnaldo Carvalho de Melo To: Peter Zijlstra Cc: Ingo Molnar , Li Zefan , Pekka Enberg , Frederic Weisbecker , Steven Rostedt , Eduard - Gabriel Munteanu , LKML , "linux-mm@kvack.org" Subject: Re: [RFC][PATCH 1/2] perf: Add 'perf kmem' tool Message-ID: <20091123143701.GC15547@ghostprotocols.net> References: <84144f020911200019p4978c8e8tc593334d974ee5ff@mail.gmail.com> <20091120083053.GB19778@elte.hu> <4B0657A4.2040606@cs.helsinki.fi> <4B06590C.7010109@cn.fujitsu.com> <20091120090353.GE19778@elte.hu> <20091120144215.GH18283@ghostprotocols.net> <20091120164110.GA24183@elte.hu> <20091120175228.GD27926@ghostprotocols.net> <20091123065110.GC31758@elte.hu> <1258960941.4531.19.camel@laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1258960941.4531.19.camel@laptop> X-Url: http://oops.ghostprotocols.net:81/blog User-Agent: Mutt/1.5.19 (2009-01-05) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1294 Lines: 27 Em Mon, Nov 23, 2009 at 08:22:21AM +0100, Peter Zijlstra escreveu: > On Mon, 2009-11-23 at 07:51 +0100, Ingo Molnar wrote: > > I havent tried this - is this really possible to do on an x86 box, with > > a typical distro? Can i install say Fedora PowerPC debuginfo packages on > > an x86 box, while also having the x86 debuginfo packages there? > > The best option would be to allow to specify a chroot parameter, where > we can specify the embedded root filesystem on out machine. yeah, I'm working now on a vmlinux_path, so that the symbol machinery in perf looks at /lib/module/`uname -r`/build/vmlinux, /usr/lib/debug/lib/modules/`uname -r`/vmlinux, ./vmlinux as a default or in getenv("VMLINUX_PATH") if set. Being able to specify a SYMTAB_PREFIX_PATH also should be possible. > I'm not even sure embedded distros even have this separate debug package > crazyness, you simply build the distro with or without debuginfo. Whatever crazyness people usually do to find the files with matching, richer symtabs we should support :) - Arnaldo -- 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/