From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2230 invoked by alias); 8 Dec 2009 21:58:15 -0000 Received: (qmail 2222 invoked by uid 22791); 8 Dec 2009 21:58:14 -0000 X-SWARE-Spam-Status: No, hits=-2.5 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 08 Dec 2009 21:58:04 +0000 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id nB8Lw2At008079 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 8 Dec 2009 16:58:02 -0500 Received: from dhcp-100-2-132.bos.redhat.com (dhcp-100-2-132.bos.redhat.com [10.16.2.132]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id nB8LvxvD026520; Tue, 8 Dec 2009 16:58:00 -0500 From: Masami Hiramatsu Subject: [PATCH -tip 0/8] perf-probe updates To: Ingo Molnar , Frederic Weisbecker , lkml Cc: Ingo Molnar , Steven Rostedt , Jim Keniston , Ananth N Mavinakayanahalli , Christoph Hellwig , "Frank Ch. Eigler" , Frederic Weisbecker , Jason Baron , "K.Prasad" , Peter Zijlstra , Srikar Dronamraju , Arnaldo Carvalho de Melo , systemtap, DLE Date: Tue, 08 Dec 2009 21:58:00 -0000 Message-ID: <20091208220232.10142.2643.stgit@dhcp-100-2-132.bos.redhat.com> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2009-q4/txt/msg00834.txt.bz2 Hi Ingo, I made several usability updates and added --del option for perf-probe. I think most of basic functions are implemented. I'm planning to support checking build-id next, because it can prevent users to use old vmlinux for debuginfo analysis. Here are the todo list I have (most of them had been requested on LKML). I'd like to share this list with other developers who are interested in. Short-term TODOs: - Support checking kernel Build-ID Long-term TODOs (future features): - Support --line option to show which lines user can probe - Support lazy string matching(glob?) for selecting probing line - Support sys_perf_counter_open (for non-root users) - Support tracing static variables (non global) - Support variable types from debuginfo (e.g. char, int, ...) - Support fields of data structures (var->field) - Support array (var[N]) - Support dynamic array-indexing (var[var2]) - Support string/dynamic arrays (*var, var[N..M]) - Support force type-casting ((type)var) - Support the type of return value Miscs: - Support glob expression with --del option (like --del "*") - Support event/group name specifying for new events - Better support for probes on modules - Symbol search by libelf/kallsyms - Move onto libdw/libdwfl - Storing file name/line number information in the kernel for listing events Thank you, --- Masami Hiramatsu (8): perf probe: Update perf-probe document perf probe: Support --del option trace-kprobe: Support delete probe syntax perf probe: Support vmlinux on cwd by default perf probe: Remove event suffix number _0 perf probe: Fix add-probe command syntax without --add option perf probe: Change probe-added message more user-friendly perf probe: Change event list format kernel/trace/trace_kprobe.c | 37 +++++++-- tools/perf/Documentation/perf-probe.txt | 21 ++++- tools/perf/builtin-probe.c | 76 ++++++++++++++++--- tools/perf/util/probe-event.c | 122 ++++++++++++++++++++++++++++--- tools/perf/util/probe-event.h | 1 5 files changed, 217 insertions(+), 40 deletions(-) -- Masami Hiramatsu Software Engineer Hitachi Computer Products (America), Inc. Software Solutions Division e-mail: mhiramat@redhat.com