From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752990Ab2AQLMs (ORCPT ); Tue, 17 Jan 2012 06:12:48 -0500 Received: from e37.co.us.ibm.com ([32.97.110.158]:58168 "EHLO e37.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752463Ab2AQLMr (ORCPT ); Tue, 17 Jan 2012 06:12:47 -0500 Date: Tue, 17 Jan 2012 16:33:45 +0530 From: Srikar Dronamraju To: Ingo Molnar Cc: Jiri Olsa , Arnaldo Carvalho de Melo , Peter Zijlstra , Linus Torvalds , Oleg Nesterov , Andrew Morton , LKML , Linux-mm , Andi Kleen , Christoph Hellwig , Steven Rostedt , Roland McGrath , Thomas Gleixner , Masami Hiramatsu , Arnaldo Carvalho de Melo , Anton Arapov , Ananth N Mavinakayanahalli , Jim Keniston , Stephen Rothwell Subject: Re: [PATCH v9 3.2 7/9] tracing: uprobes trace_event interface Message-ID: <20120117110345.GC15447@linux.vnet.ibm.com> Reply-To: Srikar Dronamraju References: <20120110114821.17610.9188.sendpatchset@srdronam.in.ibm.com> <20120110114943.17610.28293.sendpatchset@srdronam.in.ibm.com> <20120116131137.GB5265@m.brq.redhat.com> <20120117092838.GB10397@elte.hu> <20120117102231.GB15447@linux.vnet.ibm.com> <20120117105916.GA3664@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20120117105916.GA3664@elte.hu> User-Agent: Mutt/1.5.20 (2009-06-14) X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12011711-7408-0000-0000-000001EFAD3D Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Ingo Molnar [2012-01-17 11:59:16]: > > btw., i'd write the CONFIG_UPROBE_EVENT .config help text: > > This allows the user to add tracing events on top of userspace > dynamic events (similar to tracepoints) on the fly via the > traceevents interface. Those events can be inserted wherever > uprobes can probe, and record various registers. > > This option is required if you plan to use perf-probe > subcommand of perf tools on user space applications. > > In a clearer form: > > This allows the user to add user-space dynamic events on the > fly, similar to tracepoints. These events can be inserted > into just about any user-space code transparently, and can > record register state there on the fly, which is then used by > instrumentation tools. > > This option is required if you plan to use the "perf probe" > subcommand of the perf tool on user space applications. > Okay, Will change as suggested. -- Thanks and Regards Srikar