From: Masami Hiramatsu <mhiramat@kernel.org>
To: Shuah Khan <shuah@kernel.org>, Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [BUGFIX PATCH v2 2/3] selftests/ftrace: Fix ftrace test cases to check unsupported
Date: Mon, 25 Nov 2019 09:11:29 +0900 [thread overview]
Message-ID: <157464068938.2006.2309427604804731225.stgit@devnote2> (raw)
In-Reply-To: <157464067201.2006.6413506591718899129.stgit@devnote2>
Since dynamic function tracer can be disabled, set_ftrace_filter
can be disappeared. Test cases which depends on it, must check
whether the set_ftrace_filter exists or not before testing
and if not, return as unsupported.
Also, if the function tracer itself is disabled, we can not
set "function" to current_tracer. Test cases must check it
before testing, and return as unsupported.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
.../ftrace/test.d/ftrace/func-filter-stacktrace.tc | 2 ++
.../selftests/ftrace/test.d/ftrace/func_cpumask.tc | 5 +++++
2 files changed, 7 insertions(+)
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
index 36fb59f886ea..1a52f2883fe0 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
@@ -3,6 +3,8 @@
# description: ftrace - stacktrace filter command
# flags: instance
+[ ! -f set_ftrace_filter ] && exit_unsupported
+
echo _do_fork:stacktrace >> set_ftrace_filter
grep -q "_do_fork:stacktrace:unlimited" set_ftrace_filter
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc
index 86a1f07ef2ca..7757b549f0b6 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc
@@ -15,6 +15,11 @@ if [ $NP -eq 1 ] ;then
exit_unresolved
fi
+if ! grep -q function available_tracers ; then
+ echo "Function trace is not enabled"
+ exit_unsupported
+fi
+
ORIG_CPUMASK=`cat tracing_cpumask`
do_reset() {
next prev parent reply other threads:[~2019-11-25 0:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-25 0:11 [BUGFIX PATCH v2 0/3] selftests/ftrace: Fix ftracetest testcases for non-function tracer case Masami Hiramatsu
2019-11-25 0:11 ` [BUGFIX PATCH v2 1/3] selftests/ftrace: Fix to check the existence of set_ftrace_filter Masami Hiramatsu
2019-11-25 0:11 ` Masami Hiramatsu [this message]
2019-11-25 0:11 ` [BUGFIX PATCH v2 3/3] selftests/ftrace: Do not to use absolute debugfs path Masami Hiramatsu
2019-11-25 6:39 ` [BUGFIX PATCH v2 0/3] selftests/ftrace: Fix ftracetest testcases for non-function tracer case Masami Hiramatsu
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