Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759897AbYHDRVr (ORCPT ); Mon, 4 Aug 2008 13:21:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759408AbYHDRVQ (ORCPT ); Mon, 4 Aug 2008 13:21:16 -0400 Received: from mx1.redhat.com ([66.187.233.31]:55046 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757380AbYHDRVO (ORCPT ); Mon, 4 Aug 2008 13:21:14 -0400 Date: Mon, 4 Aug 2008 14:18:56 -0300 From: Arnaldo Carvalho de Melo To: Steven Rostedt Cc: Arnaldo Carvalho de Melo , Ming Lei , linux-kernel@vger.kernel.org, Ingo Molnar , Andrew Morton , Steven Rostedt Subject: Re: [RFC] ftrace: support tracing functions in one module Message-ID: <20080804171856.GB17964@ghostprotocols.net> Mail-Followup-To: Arnaldo Carvalho de Melo , Steven Rostedt , Ming Lei , linux-kernel@vger.kernel.org, Ingo Molnar , Andrew Morton , Steven Rostedt References: <20080804161506.GA17964@ghostprotocols.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Url: http://oops.ghostprotocols.net:81/blog User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1393 Lines: 44 Em Mon, Aug 04, 2008 at 12:28:12PM -0400, Steven Rostedt escreveu: > > On Mon, 4 Aug 2008, Arnaldo Carvalho de Melo wrote: > > > > > > Do you have the plan to support tracing functions in one module or in one kernel > > > address range? > > > > What about using: > > > > [acme@doppio pahole]$ nm --defined-only /usr/lib/debug/lib/modules/2.6.24.7-75.el5rt/kernel/drivers/net/tg3.ko.debug | grep ' t ' | cut -d' ' -f3 | head > > __tg3_set_coalesce > > __tg3_set_mac_addr > > __tg3_set_rx_mode > > _tw32_flush > > tg3_5700_link_polarity > > tg3_abort_hw > > tg3_alloc_rx_skb > > tg3_ape_driver_state_change > > tg3_bmcr_reset > > tg3_change_mtu > > [acme@doppio pahole]$ > > > > Feed this to /sys/kernel/debug/tracing/set_ftrace_filter and you should > > be set, no? > > > > Ok, you need to have the kernel-debuginfo package installed, and I guess > > we can get away with that, but for now, isn't that enough? > > > Or simply (again for tg3 : > > > # awk '/\[tg3\]/ { print $3 }' /proc/kallsyms \ > > /debug/tracing/set_ftrace_filter For the drivers that do proper namespacing, yes, that should be enough in most cases :) - 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/