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