Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759720Ab3ICIZL (ORCPT ); Tue, 3 Sep 2013 04:25:11 -0400 Received: from mail-ea0-f169.google.com ([209.85.215.169]:57848 "EHLO mail-ea0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759555Ab3ICIZI (ORCPT ); Tue, 3 Sep 2013 04:25:08 -0400 Date: Tue, 3 Sep 2013 10:25:03 +0200 From: Ingo Molnar To: Hemant Kumar Shaw Cc: linux-kernel@vger.kernel.org, srikar@linux.vnet.ibm.com, peterz@infradead.org, oleg@redhat.com, mingo@redhat.com, anton@redhat.com, systemtap@sourceware.org, masami.hiramatsu.pt@hitachi.com Subject: Re: [RFC PATCH 0/2] Perf support to SDT markers Message-ID: <20130903082503.GA20732@gmail.com> References: <20130903072944.4793.93584.stgit@hemant-fedora> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130903072944.4793.93584.stgit@hemant-fedora> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1189 Lines: 27 * Hemant Kumar Shaw wrote: > This series adds support to perf to list and probe into the SDT markers. > The first patch implements listing of all the SDT markers present in > the ELFs (executables or libraries). The SDT markers are present in the > .note.stapsdt section of the elf. That section can be traversed to list > all the markers. Recognition of markers follows the SystemTap approach. > > The second patch will allow perf to probe into these markers. This is > done by writing the marker name and its offset into the > uprobe_events file in the tracing directory. > Then, perf tools can be used to analyze perf.data file. Please provide a better high level description that explains the history and scope of SDT markers, how SDT markers get into binaries, how they can be used for probing, a real-life usage example that shows something interesting not possible via other ways, etc. Thanks, Ingo -- 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/