linux-kernel - [PATCH -perf/perf/core 2/2] perf probe: Show filename which contains target function

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Message-ID: <20110210090816.1809.43426.stgit@ltc236.sdl.hitachi.co.jp>
Date:	Thu, 10 Feb 2011 18:08:16 +0900
From:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Ingo Molnar <mingo@...e.hu>
Cc:	Franck Bui-Huu <fbuihuu@...il.com>, linux-kernel@...r.kernel.org,
	2nddept-manager@....hitachi.co.jp,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	linux-kernel@...r.kernel.org
Subject: [PATCH -perf/perf/core 2/2] perf probe: Show filename which contains
	target function

Show filename which contains a target function with the
function name on "--lines" mode, because perf-probe just
shows the first function even if there are many same-name
functions.

Originally adopted by Franck Bui-Huu's patch which shows
file name instead of function name. I've just modified it
to show both of function name and file name, because of
completeness of output.

 E.g.)
 $ perf probe -L t_show
 <t_show@...me/mhiramat/ksrc/linux-2.6-tip/kernel/trace/ftrace.c:0>
      0  static int t_show(struct seq_file *m, void *v)
      1  {
      2         struct ftrace_iterator *iter = m->private;
 ...

 $ perf probe -L t_show@...ce/trace.c
 <t_show@...me/mhiramat/ksrc/linux-2.6-tip/kernel/trace/trace.c:0>
      0  static int t_show(struct seq_file *m, void *v)
      1  {
                struct tracer *t = v;
 ...

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Original-patch-by: Franck Bui-Huu <fbuihuu@...il.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc: linux-kernel@...r.kernel.org
---

 tools/perf/util/probe-event.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index cbd7650..0e3ea13 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -409,7 +409,7 @@ int show_line_range(struct line_range *lr, const char *module)
 	setup_pager();
 
 	if (lr->function)
-		fprintf(stdout, "<%s:%d>\n", lr->function,
+		fprintf(stdout, "<%s@%s:%d>\n", lr->function, lr->path,
 			lr->start - lr->offset);
 	else
 		fprintf(stdout, "<%s:%d>\n", lr->path, lr->start);

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