From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754396Ab1FGOVn (ORCPT ); Tue, 7 Jun 2011 10:21:43 -0400 Received: from merlin.infradead.org ([205.233.59.134]:35781 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752799Ab1FGOVl (ORCPT ); Tue, 7 Jun 2011 10:21:41 -0400 Date: Tue, 7 Jun 2011 11:21:16 -0300 From: Arnaldo Carvalho de Melo To: Ananth N Mavinakayanahalli Cc: Christoph Hellwig , Srikar Dronamraju , Peter Zijlstra , Ingo Molnar , Steven Rostedt , Linux-mm , Linus Torvalds , Masami Hiramatsu , Hugh Dickins , Andi Kleen , Thomas Gleixner , Jonathan Corbet , Oleg Nesterov , Andrew Morton , Jim Keniston , Roland McGrath , LKML Subject: Re: [PATCH v4 3.0-rc2-tip 20/22] 20: perf: perf interface for uprobes Message-ID: <20110607142116.GA8311@ghostprotocols.net> References: <20110607125804.28590.92092.sendpatchset@localhost6.localdomain6> <20110607130216.28590.5724.sendpatchset@localhost6.localdomain6> <20110607133039.GA4929@infradead.org> <20110607133853.GC9949@in.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110607133853.GC9949@in.ibm.com> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.21 (2010-09-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by canuck.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 Em Tue, Jun 07, 2011 at 07:08:53PM +0530, Ananth N Mavinakayanahalli escreveu: > On Tue, Jun 07, 2011 at 09:30:39AM -0400, Christoph Hellwig wrote: > > On Tue, Jun 07, 2011 at 06:32:16PM +0530, Srikar Dronamraju wrote: > > > Enhances perf probe to user space executables and libraries. > > > Provides very basic support for uprobes. > > Nice. Does this require full debug info for symbolic probes, > > or can it also work with simple symbolc information? > It works only with symbol information for now. > It doesn't (yet) know how to use debuginfo :-) 'perf probe' uses perf symbol library, so it really don't have to know from where symbol resolution information is obtained, only if it needs things that are _just_ on debuginfo, such as line information, etc. But then that is also already supported in 'perf probe'. Or is there something else in particular you're thinking? - Arnaldo From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with ESMTP id C5ED46B0012 for ; Tue, 7 Jun 2011 10:21:35 -0400 (EDT) Date: Tue, 7 Jun 2011 11:21:16 -0300 From: Arnaldo Carvalho de Melo Subject: Re: [PATCH v4 3.0-rc2-tip 20/22] 20: perf: perf interface for uprobes Message-ID: <20110607142116.GA8311@ghostprotocols.net> References: <20110607125804.28590.92092.sendpatchset@localhost6.localdomain6> <20110607130216.28590.5724.sendpatchset@localhost6.localdomain6> <20110607133039.GA4929@infradead.org> <20110607133853.GC9949@in.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110607133853.GC9949@in.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: Ananth N Mavinakayanahalli Cc: Christoph Hellwig , Srikar Dronamraju , Peter Zijlstra , Ingo Molnar , Steven Rostedt , Linux-mm , Linus Torvalds , Masami Hiramatsu , Hugh Dickins , Andi Kleen , Thomas Gleixner , Jonathan Corbet , Oleg Nesterov , Andrew Morton , Jim Keniston , Roland McGrath , LKML Em Tue, Jun 07, 2011 at 07:08:53PM +0530, Ananth N Mavinakayanahalli escreveu: > On Tue, Jun 07, 2011 at 09:30:39AM -0400, Christoph Hellwig wrote: > > On Tue, Jun 07, 2011 at 06:32:16PM +0530, Srikar Dronamraju wrote: > > > Enhances perf probe to user space executables and libraries. > > > Provides very basic support for uprobes. > > Nice. Does this require full debug info for symbolic probes, > > or can it also work with simple symbolc information? > It works only with symbol information for now. > It doesn't (yet) know how to use debuginfo :-) 'perf probe' uses perf symbol library, so it really don't have to know from where symbol resolution information is obtained, only if it needs things that are _just_ on debuginfo, such as line information, etc. But then that is also already supported in 'perf probe'. Or is there something else in particular you're thinking? - Arnaldo -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org