Commit cfa0963d authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by Steven Rostedt
Browse files

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: default avatarMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Reviewed-by: default avatarNamhyung Kim <namhyung@kernel.org>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 5463bfda

tools/testing/selftests/ftrace/test.d/functions

+9 −0
Original line number Diff line number Diff line
@@ -14,3 +14,12 @@ enable_tracing() { # start trace recording 
reset_tracer() { # reset the current tracer

    echo nop > current_tracer

}



reset_trigger() { # reset all current setting triggers

    grep -v ^# events/*/*/trigger |

    while read line; do

        cmd=`echo $line | cut -f2- -d: | cut -f1 -d" "`

	echo "!$cmd" > `echo $line | cut -f1 -d:`

    done

}

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

0 → 100644
+64 −0
Original line number Diff line number Diff line 
#!/bin/sh

# description: event trigger - test event enable/disable trigger



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



reset_tracer

do_reset



FEATURE=`grep enable_event events/sched/sched_process_fork/trigger`

if [ -z "$FEATURE" ]; then

    echo "event enable/disable trigger is not supported"

    exit_unsupported

fi



echo "Test enable_event trigger"

echo 0 > events/sched/sched_switch/enable

echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger

( echo "forked")

if [ `cat events/sched/sched_switch/enable` != '1*' ]; then

    fail "enable_event trigger on sched_process_fork did not work"

fi



reset_trigger



echo "Test disable_event trigger"

echo 1 > events/sched/sched_switch/enable

echo 'disable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger

( echo "forked")

if [ `cat events/sched/sched_switch/enable` != '0*' ]; then

    fail "disable_event trigger on sched_process_fork did not work"

fi



reset_trigger



echo "Test semantic error for event enable/disable trigger"

! echo 'enable_event:nogroup:noevent' > events/sched/sched_process_fork/trigger

! echo 'disable_event+1' > events/sched/sched_process_fork/trigger

echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger

! echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger

! echo 'disable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger



do_reset



exit 0

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

0 → 100644
+59 −0
Original line number Diff line number Diff line 
#!/bin/sh

# description: event trigger - test trigger filter



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



reset_tracer

do_reset



echo "Test trigger filter"

echo 1 > tracing_on

echo 'traceoff if child_pid == 0' > events/sched/sched_process_fork/trigger

( echo "forked")

if [ `cat tracing_on` -ne 1 ]; then

    fail "traceoff trigger on sched_process_fork did not work"

fi



reset_trigger



echo "Test semantic error for trigger filter"

! echo 'traceoff if a' > events/sched/sched_process_fork/trigger

! echo 'traceoff if common_pid=0' > events/sched/sched_process_fork/trigger

! echo 'traceoff if common_pid==b' > events/sched/sched_process_fork/trigger

echo 'traceoff if common_pid == 0' > events/sched/sched_process_fork/trigger

echo '!traceoff' > events/sched/sched_process_fork/trigger

! echo 'traceoff if common_pid == child_pid' > events/sched/sched_process_fork/trigger

echo 'traceoff if common_pid <= 0' > events/sched/sched_process_fork/trigger

echo '!traceoff' > events/sched/sched_process_fork/trigger

echo 'traceoff if common_pid >= 0' > events/sched/sched_process_fork/trigger

echo '!traceoff' > events/sched/sched_process_fork/trigger

echo 'traceoff if parent_pid >= 0 && child_pid >= 0' > events/sched/sched_process_fork/trigger

echo '!traceoff' > events/sched/sched_process_fork/trigger

echo 'traceoff if parent_pid >= 0 || child_pid >= 0' > events/sched/sched_process_fork/trigger

echo '!traceoff' > events/sched/sched_process_fork/trigger







do_reset



exit 0

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

0 → 100644
+56 −0
Original line number Diff line number Diff line 
#!/bin/sh

# description: event trigger - test snapshot-trigger



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



reset_tracer

do_reset



FEATURE=`grep snapshot events/sched/sched_process_fork/trigger`

if [ -z "$FEATURE" ]; then

    echo "snapshot trigger is not supported"

    exit_unsupported

fi



echo "Test snapshot tigger"

echo 0 > snapshot

echo 1 > events/sched/sched_process_fork/enable

( echo "forked")

echo 'snapshot:1' > events/sched/sched_process_fork/trigger

( echo "forked")

grep sched_process_fork snapshot > /dev/null || \

    fail "snapshot trigger on sched_process_fork did not work"



reset_trigger

echo 0 > snapshot

echo 0 > events/sched/sched_process_fork/enable



echo "Test snapshot semantic errors"



! echo "snapshot+1" > events/sched/sched_process_fork/trigger

echo "snapshot" > events/sched/sched_process_fork/trigger

! echo "snapshot" > events/sched/sched_process_fork/trigger



do_reset



exit 0

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

0 → 100644
+53 −0
Original line number Diff line number Diff line 
#!/bin/sh

# description: event trigger - test stacktrace-trigger



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



reset_tracer

do_reset



FEATURE=`grep stacktrace events/sched/sched_process_fork/trigger`

if [ -z "$FEATURE" ]; then

    echo "stacktrace trigger is not supported"

    exit_unsupported

fi



echo "Test stacktrace tigger"

echo 0 > trace

echo 0 > options/stacktrace

echo 'stacktrace' > events/sched/sched_process_fork/trigger

( echo "forked")

grep "<stack trace>" trace > /dev/null || \

    fail "stacktrace trigger on sched_process_fork did not work"



reset_trigger



echo "Test stacktrace semantic errors"



! echo "stacktrace:foo" > events/sched/sched_process_fork/trigger

echo "stacktrace" > events/sched/sched_process_fork/trigger

! echo "stacktrace" > events/sched/sched_process_fork/trigger



do_reset



exit 0

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