From b2a3c12b7442247c440f7083d48ef05716753ec1 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Wed, 19 May 2010 15:57:42 -0400
Subject: perf probe: Support tracing an entry of array

Add array-entry tracing support to perf probe. This enables to trace an entry
of array which is indexed by constant value, e.g. array[0].

For example:

  $ perf probe -a 'bio_split bi->bi_io_vec[0]'

Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20100519195742.2885.5344.stgit@localhost6.localdomain6>
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/probe-event.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'tools/perf/util/probe-event.h')

diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index e9db1a214ca4..bc06d3e8bafa 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -50,6 +50,7 @@ struct perf_probe_point {
 struct perf_probe_arg_field {
 	struct perf_probe_arg_field	*next;	/* Next field */
 	char				*name;	/* Name of the field */
+	long				index;	/* Array index number */
 	bool				ref;	/* Referencing flag */
 };
 
-- 
cgit