tools/testing/selftests/ftrace/test.d/dynevent/clear_select_events.tc

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: Generic dynamic event - selective clear (compatibility)
   4 # requires: dynamic_events kprobe_events synthetic_events "place: [<module>:]<symbol>":README "place (kretprobe): [<module>:]<symbol>":README "s:[synthetic/]":README
   5
   6 echo 0 > events/enable
   7 echo > dynamic_events
   8
   9 PLACE=$FUNCTION_FORK
  10
  11 setup_events() {
  12 echo "p:myevent1 $PLACE" >> dynamic_events
  13 echo "s:latency1 u64 lat; pid_t pid;" >> dynamic_events
  14 echo "r:myevent2 $PLACE" >> dynamic_events
  15 echo "s:latency2 u64 lat; pid_t pid;" >> dynamic_events
  16
  17 grep -q myevent1 dynamic_events
  18 grep -q myevent2 dynamic_events
  19 grep -q latency1 dynamic_events
  20 grep -q latency2 dynamic_events
  21 }
  22
  23 setup_events
  24 echo > synthetic_events
  25
  26 grep -q myevent1 dynamic_events
  27 grep -q myevent2 dynamic_events
  28 ! grep -q latency1 dynamic_events
  29 ! grep -q latency2 dynamic_events
  30
  31 echo > dynamic_events
  32
  33 setup_events
  34 echo > kprobe_events
  35
  36 ! grep -q myevent1 dynamic_events
  37 ! grep -q myevent2 dynamic_events
  38 grep -q latency1 dynamic_events
  39 grep -q latency2 dynamic_events
  40
  41 echo > dynamic_events