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

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: event trigger - test event enable/disable trigger
   4 # flags: instance
   5
   6 do_reset() {
   7     reset_trigger
   8     echo > set_event
   9     clear_trace
  10 }
  11
  12 fail() { #msg
  13     do_reset
  14     echo $1
  15     exit_fail
  16 }
  17
  18 if [ ! -f set_event -o ! -d events/sched ]; then
  19     echo "event tracing is not supported"
  20     exit_unsupported
  21 fi
  22
  23 if [ ! -f events/sched/sched_process_fork/trigger ]; then
  24     echo "event trigger is not supported"
  25     exit_unsupported
  26 fi
  27
  28 reset_tracer
  29 do_reset
  30
  31 FEATURE=`grep enable_event events/sched/sched_process_fork/trigger`
  32 if [ -z "$FEATURE" ]; then
  33     echo "event enable/disable trigger is not supported"
  34     exit_unsupported
  35 fi
  36
  37 echo "Test enable_event trigger"
  38 echo 0 > events/sched/sched_switch/enable
  39 echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
  40 ( echo "forked")
  41 if [ `cat events/sched/sched_switch/enable` != '1*' ]; then
  42     fail "enable_event trigger on sched_process_fork did not work"
  43 fi
  44
  45 reset_trigger
  46
  47 echo "Test disable_event trigger"
  48 echo 1 > events/sched/sched_switch/enable
  49 echo 'disable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
  50 ( echo "forked")
  51 if [ `cat events/sched/sched_switch/enable` != '0*' ]; then
  52     fail "disable_event trigger on sched_process_fork did not work"
  53 fi
  54
  55 reset_trigger
  56
  57 echo "Test semantic error for event enable/disable trigger"
  58 ! echo 'enable_event:nogroup:noevent' > events/sched/sched_process_fork/trigger
  59 ! echo 'disable_event+1' > events/sched/sched_process_fork/trigger
  60 echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
  61 ! echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
  62 ! echo 'disable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
  63
  64 do_reset
  65
  66 exit 0