diff options
Diffstat (limited to 'tools/testing/selftests/ftrace/test.d/event/event-pid.tc')
-rw-r--r-- | tools/testing/selftests/ftrace/test.d/event/event-pid.tc | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc new file mode 100644 index 000000000..7f5f97dff --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc @@ -0,0 +1,61 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: event tracing - restricts events based on pid +# requires: set_event set_event_pid events/sched +# flags: instance + +do_reset() { + echo > set_event + echo > set_event_pid + echo 0 > options/event-fork + clear_trace +} + +fail() { #msg + do_reset + echo $1 + exit_fail +} + +echo 0 > options/event-fork + +echo 1 > events/sched/sched_switch/enable + +yield + +count=`cat trace | grep sched_switch | wc -l` +if [ $count -eq 0 ]; then + fail "sched_switch events are not recorded" +fi + +do_reset + +read mypid rest < /proc/self/stat + +echo $mypid > set_event_pid +grep -q $mypid set_event_pid +echo 'sched:sched_switch' > set_event + +yield + +count=`cat trace | grep sched_switch | grep -v "pid=$mypid" | wc -l` +if [ $count -ne 0 ]; then + fail "sched_switch events from other task are recorded" +fi + +do_reset + +echo $mypid > set_event_pid +echo 1 > options/event-fork +echo 1 > events/sched/sched_switch/enable + +yield + +count=`cat trace | grep sched_switch | grep -v "pid=$mypid" | wc -l` +if [ $count -eq 0 ]; then + fail "sched_switch events from other task are not recorded" +fi + +do_reset + +exit 0 |