#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# description: event trigger - test snapshot-trigger
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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 $1
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exit_fail
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}
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if [ ! -f set_event -o ! -d events/sched ]; then
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echo "event tracing is not supported"
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exit_unsupported
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fi
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if [ ! -f events/sched/sched_process_fork/trigger ]; then
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echo "event trigger is not supported"
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exit_unsupported
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fi
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if [ ! -f snapshot ]; then
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echo "snapshot is not supported"
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exit_unsupported
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fi
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reset_tracer
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do_reset
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FEATURE=`grep snapshot events/sched/sched_process_fork/trigger`
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if [ -z "$FEATURE" ]; then
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echo "snapshot trigger is not supported"
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exit_unsupported
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fi
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echo "Test snapshot tigger"
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echo 0 > snapshot
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echo 1 > events/sched/sched_process_fork/enable
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( echo "forked")
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echo 'snapshot:1' > events/sched/sched_process_fork/trigger
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( echo "forked")
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grep sched_process_fork snapshot > /dev/null || \
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fail "snapshot trigger on sched_process_fork did not work"
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reset_trigger
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echo 0 > snapshot
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echo 0 > events/sched/sched_process_fork/enable
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echo "Test snapshot semantic errors"
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! echo "snapshot+1" > events/sched/sched_process_fork/trigger
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echo "snapshot" > events/sched/sched_process_fork/trigger
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! echo "snapshot" > events/sched/sched_process_fork/trigger
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do_reset
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exit 0
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