1 files changed, 65 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
new file mode 100644
index 000000000..4e9b6e2c0
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
@@ -0,0 +1,65 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event tracing - enable/disable with top level files
+
+do_reset() {
+    echo > set_event
+    clear_trace
+}
+
+fail() { #msg
+    do_reset
+    echo $1
+    exit_fail
+}
+
+yield() {
+    ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
+}
+
+if [ ! -f available_events -o ! -f set_event -o ! -d events ]; then
+    echo "event tracing is not supported"
+    exit_unsupported
+fi
+
+reset_tracer
+do_reset
+
+echo '*:*' > set_event
+
+yield
+
+echo 0 > tracing_on
+
+count=`head -n 128 trace | grep -v ^# | wc -l`
+if [ $count -eq 0 ]; then
+    fail "none of events are recorded"
+fi
+
+do_reset
+
+echo 1 > events/enable
+echo 1 > tracing_on
+
+yield
+
+echo 0 > tracing_on
+count=`head -n 128 trace | grep -v ^# | wc -l`
+if [ $count -eq 0 ]; then
+    fail "none of events are recorded"
+fi
+
+do_reset
+
+echo 0 > events/enable
+
+yield
+
+count=`cat trace | grep -v ^# | wc -l`
+if [ $count -ne 0 ]; then
+    fail "any of events should not be recorded"
+fi
+
+do_reset
+
+exit 0