tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc

   1 #!/bin/sh
   2 # description: Kprobe dynamic event - busy event check
   3
   4 [ -f kprobe_events ] || exit_unsupported
   5
   6 echo 0 > events/enable
   7 echo > kprobe_events
   8 echo p:myevent _do_fork > kprobe_events
   9 test -d events/kprobes/myevent
  10 echo 1 > events/kprobes/myevent/enable
  11 echo > kprobe_events && exit 1 # this must fail
  12 echo 0 > events/kprobes/myevent/enable
  13 echo > kprobe_events # this must succeed
  14 clear_trace