tegrakernel/kernel/kernel-4.9/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc

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#!/bin/sh
# description: event trigger - test event enable/disable trigger
do_reset() {
reset_trigger
echo > set_event
clear_trace
}
fail() { #msg
do_reset
echo $1
exit $FAIL
}
if [ ! -f set_event -o ! -d events/sched ]; then
echo "event tracing is not supported"
exit_unsupported
fi
if [ ! -f events/sched/sched_process_fork/trigger ]; then
echo "event trigger is not supported"
exit_unsupported
fi
reset_tracer
do_reset
FEATURE=`grep enable_event events/sched/sched_process_fork/trigger`
if [ -z "$FEATURE" ]; then
echo "event enable/disable trigger is not supported"
exit_unsupported
fi
echo "Test enable_event trigger"
echo 0 > events/sched/sched_switch/enable
echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
( echo "forked")
if [ `cat events/sched/sched_switch/enable` != '1*' ]; then
fail "enable_event trigger on sched_process_fork did not work"
fi
reset_trigger
echo "Test disable_event trigger"
echo 1 > events/sched/sched_switch/enable
echo 'disable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
( echo "forked")
if [ `cat events/sched/sched_switch/enable` != '0*' ]; then
fail "disable_event trigger on sched_process_fork did not work"
fi
reset_trigger
echo "Test semantic error for event enable/disable trigger"
! echo 'enable_event:nogroup:noevent' > events/sched/sched_process_fork/trigger
! echo 'disable_event+1' > events/sched/sched_process_fork/trigger
echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
! echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
! echo 'disable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
do_reset
exit 0