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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: event trigger - test multiple histogram triggers
# flags: instance
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
if [ ! -f events/sched/sched_process_fork/hist ]; then
echo "hist trigger is not supported"
exit_unsupported
fi
reset_tracer
do_reset
reset_trigger
echo "Test histogram multiple tiggers"
echo 'hist:keys=parent_pid:vals=child_pid' > events/sched/sched_process_fork/trigger
echo 'hist:keys=parent_comm:vals=child_pid' >> events/sched/sched_process_fork/trigger
for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
grep parent_pid events/sched/sched_process_fork/hist > /dev/null || \
fail "hist trigger on sched_process_fork did not work"
grep child events/sched/sched_process_fork/hist > /dev/null || \
fail "hist trigger on sched_process_fork did not work"
COMM=`cat /proc/$$/comm`
grep "parent_comm: $COMM" events/sched/sched_process_fork/hist > /dev/null || \
fail "string key on sched_process_fork did not work"
reset_trigger
echo "Test histogram with its name"
echo 'hist:name=test_hist:keys=common_pid' > events/sched/sched_process_fork/trigger
for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
grep test_hist events/sched/sched_process_fork/hist > /dev/null || \
fail "named event on sched_process_fork did not work"
echo "Test same named histogram on different events"
echo 'hist:name=test_hist:keys=common_pid' > events/sched/sched_process_exit/trigger
for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
grep test_hist events/sched/sched_process_exit/hist > /dev/null || \
fail "named event on sched_process_fork did not work"
diffs=`diff events/sched/sched_process_exit/hist events/sched/sched_process_fork/hist | wc -l`
test $diffs -eq 0 || fail "Same name histograms are not same"
reset_trigger
do_reset
exit 0
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