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

   1 #!/bin/sh
   2 # description: event trigger - test traceon/off trigger
   3
   4 do_reset() {
   5     reset_trigger
   6     echo > set_event
   7     clear_trace
   8 }
   9
  10 fail() { #msg
  11     do_reset
  12     echo $1
  13     exit $FAIL
  14 }
  15
  16 if [ ! -f set_event -o ! -d events/sched ]; then
  17     echo "event tracing is not supported"
  18     exit_unsupported
  19 fi
  20
  21 if [ ! -f events/sched/sched_process_fork/trigger ]; then
  22     echo "event trigger is not supported"
  23     exit_unsupported
  24 fi
  25
  26 reset_tracer
  27 do_reset
  28
  29 echo "Test traceoff trigger"
  30 echo 1 > tracing_on
  31 echo 'traceoff' > events/sched/sched_process_fork/trigger
  32 ( echo "forked")
  33 if [ `cat tracing_on` -ne 0 ]; then
  34     fail "traceoff trigger on sched_process_fork did not work"
  35 fi
  36
  37 reset_trigger
  38
  39 echo "Test traceon trigger"
  40 echo 0 > tracing_on
  41 echo 'traceon' > events/sched/sched_process_fork/trigger
  42 ( echo "forked")
  43 if [ `cat tracing_on` -ne 1 ]; then
  44     fail "traceoff trigger on sched_process_fork did not work"
  45 fi
  46
  47 reset_trigger
  48
  49 echo "Test semantic error for traceoff/on trigger"
  50 ! echo 'traceoff:badparam' > events/sched/sched_process_fork/trigger
  51 ! echo 'traceoff+0' > events/sched/sched_process_fork/trigger
  52 echo 'traceon' > events/sched/sched_process_fork/trigger
  53 ! echo 'traceon' > events/sched/sched_process_fork/trigger
  54 ! echo 'traceoff' > events/sched/sched_process_fork/trigger
  55
  56 do_reset
  57
  58 exit 0