Commit 25deae09 authored Nov 27, 2019 by Masami Hiramatsu Committed by Shuah Khan Dec 09, 2019

selftests/ftrace: Fix ftrace test cases to check unsupported



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>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

parent fd1baf6c

tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc

+2 −0

Original line number	Diff line number	Diff line
		@@ -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

tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc

+5 −0

Original line number	Diff line number	Diff line
		@@ -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() {

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