Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758611AbYGRNgR (ORCPT ); Fri, 18 Jul 2008 09:36:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754963AbYGRNgB (ORCPT ); Fri, 18 Jul 2008 09:36:01 -0400 Received: from smtp-out04.alice-dsl.net ([88.44.63.6]:41618 "EHLO smtp-out04.alice-dsl.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753706AbYGRNgA (ORCPT ); Fri, 18 Jul 2008 09:36:00 -0400 To: Peter Zijlstra Cc: "Frank Ch. Eigler" , James Bottomley , linux-kernel , systemtap@sourceware.org, jbeulich@novell.com, arjan , sandmann@daimi.au.dk, Ingo Molnar Subject: Re: [RFC] systemtap: begin the process of using proper kernel APIs (part1: use kprobe symbol_name/offset instead of address) From: Andi Kleen References: <1216146802.3312.95.camel@localhost.localdomain> <87ej5rsgk4.fsf@basil.nowhere.org> <1216373009.5232.130.camel@twins> <1216386627.28405.42.camel@twins> Date: Fri, 18 Jul 2008 15:35:29 +0200 In-Reply-To: <1216386627.28405.42.camel@twins> (Peter Zijlstra's message of "Fri, 18 Jul 2008 15:10:27 +0200") Message-ID: <871w1r9uxq.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-OriginalArrivalTime: 18 Jul 2008 13:35:27.0579 (UTC) FILETIME=[23C712B0:01C8E8DB] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 546 Lines: 14 Peter Zijlstra writes: > > I think sysprof (kernel/trace/trace_sysprof.c) already does user-space > stack unwinding. So pushing that capability further up the chain when a > second user (stap) comes along makes perfect sense. oprofile call trace profiling also does it. -Andi -- 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/