From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755650Ab1HKMGI (ORCPT ); Thu, 11 Aug 2011 08:06:08 -0400 Received: from mail4.hitachi.co.jp ([133.145.228.5]:34192 "EHLO mail4.hitachi.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755596Ab1HKMGF (ORCPT ); Thu, 11 Aug 2011 08:06:05 -0400 X-AuditID: b753bd60-a327cba0000050a4-83-4e43c5abb11b X-AuditID: b753bd60-a327cba0000050a4-83-4e43c5abb11b From: Akihiro Nagai Subject: [PATCH -tip v3 5/5] perf script: add option resolving vmlinux path To: Arnaldo Carvalho de Melo , Ingo Molnar , Peter Zijlstra , Frederic Weisbecker , David Ahern Cc: linux-kernel@vger.kernel.org, Masami Hiramatsu , yrl.pp-manager.tt@hitachi.com, Akihiro Nagai , Peter Zijlstra , Frederic Weisbecker , Paul Mackerras , Ingo Molnar , Arnaldo Carvalho de Melo , David Ahern , Masami Hiramatsu Date: Thu, 11 Aug 2011 21:06:38 +0900 Message-ID: <20110811120638.5900.72007.stgit@linux3> In-Reply-To: <20110811120555.5900.23642.stgit@linux3> References: <20110811120555.5900.23642.stgit@linux3> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add the option get the path of [kernel.kallsyms]. Specify '--show-kernel-path' option to use this function. This patch enables other applications to use this output easily. Without --show-kernel-path option # perf script -f ip,dso ffffffff81467612 irq_return ([kernel.kallsyms]) ffffffff81467612 irq_return ([kernel.kallsyms]) 7f24fc02a6b3 _start (/lib64/ld-2.14.so) [snip] With --show-kernel-path option # perf script -f ip,dso --show-kernel-path ffffffff81467612 irq_return (/lib/modules/3.0.0+/build/vmlinux) ffffffff81467612 irq_return (/lib/modules/3.0.0+/build/vmlinux) 7f24fc02a6b3 _start (/lib64/ld-2.14.so) [snip] Signed-off-by: Akihiro Nagai Cc: Peter Zijlstra Cc: Frederic Weisbecker Cc: Paul Mackerras Cc: Ingo Molnar Cc: Arnaldo Carvalho de Melo Cc: David Ahern Cc: Masami Hiramatsu --- tools/perf/Documentation/perf-script.txt | 3 +++ tools/perf/builtin-script.c | 2 ++ tools/perf/util/map.c | 9 ++++++--- tools/perf/util/symbol.h | 1 + 4 files changed, 12 insertions(+), 3 deletions(-) diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index ee4d477..5383671 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -188,6 +188,9 @@ OPTIONS CPUs are specified with -: 0-2. Default is to report samples on all CPUs. +--show-kernel-path:: + Try to resolve the path of [kernel.kallsyms] + SEE ALSO -------- linkperf:perf-record[1], linkperf:perf-script-perl[1], diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 78797b3..ba5d3bb 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -1095,6 +1095,8 @@ static const struct option options[] = { "addr,offs", parse_output_fields), OPT_STRING('c', "cpu", &cpu_list, "cpu", "list of cpus to profile"), + OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path, + "Show the path of [kernel.kallsyms]"), OPT_END() }; diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 530a5ea..6ba4909 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -204,9 +204,12 @@ void map__print_dsoname(struct map *self) { const char *dsoname; - if (self && self->dso && self->dso->name) - dsoname = self->dso->name; - else + if (self && self->dso && (self->dso->name || self->dso->long_name)) { + if (symbol_conf.show_kernel_path && self->dso->long_name) + dsoname = self->dso->long_name; + else if (self->dso->name) + dsoname = self->dso->name; + } else dsoname = "[unknown]"; printf("%s", dsoname); diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 554b2fe..3a63c92 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -69,6 +69,7 @@ struct strlist; struct symbol_conf { unsigned short priv_size; bool try_vmlinux_path, + show_kernel_path, use_modules, sort_by_name, show_nr_samples,