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mhiramathitachirostedt
mhiramathitachi
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rostedt
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kselftests/ftrace : Add event trigger testcases
This adds simple event trigger testcases for ftracetest, which covers following triggers. - traceon-traceoff trigger - enable/disable_event trigger - snapshot trigger - stacktrace trigger - trigger filters Here is the test result. ---- # ./ftracetest test.d/trigger/ === Ftrace unit tests === [1] event trigger - test event enable/disable trigger [PASS] [2] event trigger - test trigger filter [PASS] [3] event trigger - test snapshot-trigger [PASS] [4] event trigger - test stacktrace-trigger [PASS] [5] event trigger - test traceon/off trigger [PASS] # of passed: 5 # of failed: 0 # of unresolved: 0 # of untested: 0 # of unsupported: 0 # of xfailed: 0 # of undefined(test bug): 0 ---- Link: http://lkml.kernel.org/r/12b9c2b289a0dc1e4386e7b77674611a83abca85.1457029949.git.tom.zanussi@linux.intel.com Signed-off-by: Masami Hiramatsu <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Shuah Khan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Tom Zanussi <[email protected]> Reviewed-by: Namhyung Kim <[email protected]> Signed-off-by: Steven Rostedt <[email protected]>
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‎tools/testing/selftests/ftrace/test.d/functions

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@@ -14,3 +14,12 @@ enable_tracing() { # start trace recording
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reset_tracer() { # reset the current tracer
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echo nop > current_tracer
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}
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reset_trigger() { # reset all current setting triggers
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grep -v ^# events/*/*/trigger |
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while read line; do
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cmd=`echo $line | cut -f2- -d: | cut -f1 -d" "`
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echo "!$cmd" > `echo $line | cut -f1 -d:`
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done
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}
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‎tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc

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

‎tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc

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#!/bin/sh
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# description: event trigger - test trigger filter
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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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reset_tracer
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do_reset
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echo "Test trigger filter"
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echo 1 > tracing_on
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echo 'traceoff if child_pid == 0' > events/sched/sched_process_fork/trigger
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( echo "forked")
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if [ `cat tracing_on` -ne 1 ]; then
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fail "traceoff trigger on sched_process_fork did not work"
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fi
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reset_trigger
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echo "Test semantic error for trigger filter"
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! echo 'traceoff if a' > events/sched/sched_process_fork/trigger
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! echo 'traceoff if common_pid=0' > events/sched/sched_process_fork/trigger
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! echo 'traceoff if common_pid==b' > events/sched/sched_process_fork/trigger
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echo 'traceoff if common_pid == 0' > events/sched/sched_process_fork/trigger
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echo '!traceoff' > events/sched/sched_process_fork/trigger
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! echo 'traceoff if common_pid == child_pid' > events/sched/sched_process_fork/trigger
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echo 'traceoff if common_pid <= 0' > events/sched/sched_process_fork/trigger
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echo '!traceoff' > events/sched/sched_process_fork/trigger
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echo 'traceoff if common_pid >= 0' > events/sched/sched_process_fork/trigger
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echo '!traceoff' > events/sched/sched_process_fork/trigger
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echo 'traceoff if parent_pid >= 0 && child_pid >= 0' > events/sched/sched_process_fork/trigger
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echo '!traceoff' > events/sched/sched_process_fork/trigger
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echo 'traceoff if parent_pid >= 0 || child_pid >= 0' > events/sched/sched_process_fork/trigger
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echo '!traceoff' > events/sched/sched_process_fork/trigger
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do_reset
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exit 0

‎tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc

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#!/bin/sh
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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 $FAIL
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}
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if [ ! -f set_event -o ! -d events/sched ]; then
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echo "event tracing is not supported"
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exit_unsupported
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fi
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if [ ! -f events/sched/sched_process_fork/trigger ]; then
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echo "event trigger is not supported"
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exit_unsupported
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fi
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reset_tracer
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do_reset
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FEATURE=`grep snapshot events/sched/sched_process_fork/trigger`
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if [ -z "$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

‎tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc

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#!/bin/sh
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# description: event trigger - test stacktrace-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 $FAIL
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}
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if [ ! -f set_event -o ! -d events/sched ]; then
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echo "event tracing is not supported"
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exit_unsupported
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fi
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if [ ! -f events/sched/sched_process_fork/trigger ]; then
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echo "event trigger is not supported"
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exit_unsupported
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fi
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reset_tracer
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do_reset
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FEATURE=`grep stacktrace events/sched/sched_process_fork/trigger`
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if [ -z "$FEATURE" ]; then
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echo "stacktrace trigger is not supported"
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exit_unsupported
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fi
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echo "Test stacktrace tigger"
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echo 0 > trace
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echo 0 > options/stacktrace
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echo 'stacktrace' > events/sched/sched_process_fork/trigger
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( echo "forked")
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grep "<stack trace>" trace > /dev/null || \
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fail "stacktrace trigger on sched_process_fork did not work"
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reset_trigger
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echo "Test stacktrace semantic errors"
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! echo "stacktrace:foo" > events/sched/sched_process_fork/trigger
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echo "stacktrace" > events/sched/sched_process_fork/trigger
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! echo "stacktrace" > events/sched/sched_process_fork/trigger
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do_reset
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exit 0

‎tools/testing/selftests/ftrace/test.d/trigger/trigger-traceonoff.tc

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#!/bin/sh
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# description: event trigger - test traceon/off 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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reset_tracer
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do_reset
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echo "Test traceoff trigger"
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echo 1 > tracing_on
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echo 'traceoff' > events/sched/sched_process_fork/trigger
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( echo "forked")
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if [ `cat tracing_on` -ne 0 ]; then
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fail "traceoff trigger on sched_process_fork did not work"
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fi
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reset_trigger
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echo "Test traceon trigger"
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echo 0 > tracing_on
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echo 'traceon' > events/sched/sched_process_fork/trigger
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( echo "forked")
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if [ `cat tracing_on` -ne 1 ]; then
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fail "traceoff trigger on sched_process_fork did not work"
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fi
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reset_trigger
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echo "Test semantic error for traceoff/on trigger"
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! echo 'traceoff:badparam' > events/sched/sched_process_fork/trigger
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! echo 'traceoff+0' > events/sched/sched_process_fork/trigger
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echo 'traceon' > events/sched/sched_process_fork/trigger
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! echo 'traceon' > events/sched/sched_process_fork/trigger
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! echo 'traceoff' > events/sched/sched_process_fork/trigger
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do_reset
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exit 0

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