linux-kernel - [PATCH v2 27/32] selftests/ftrace: Add stacktrace ftrace filter command testcase

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Message-Id: <153443771560.23257.1531051659949223265.stgit@devbox>
Date:   Fri, 17 Aug 2018 01:41:55 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Shuah Khan <shuah@...nel.org>, Steven Rostedt <rostedt@...dmis.org>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 27/32] selftests/ftrace: Add stacktrace ftrace filter command testcase

Add a test case for stacktrace filter command for ftrace.

Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
---
 .../ftrace/test.d/ftrace/func-filter-stacktrace.tc |   12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc

diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
new file mode 100644
index 000000000000..ec0d8216d509
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
@@ -0,0 +1,12 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL2.0
+# description: ftrace - stacktrace filter command
+
+echo _do_fork:stacktrace >> set_ftrace_filter
+
+grep -q "_do_fork:stacktrace:unlimited" set_ftrace_filter
+
+(echo "forked"; sleep 1)
+
+grep -q "<stack trace>" trace
+