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

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: Kprobe dynamic event - busy event check
   4
   5 [ -f kprobe_events ] || exit_unsupported
   6
   7 echo 0 > events/enable
   8 echo > kprobe_events
   9 echo p:myevent _do_fork > kprobe_events
  10 test -d events/kprobes/myevent
  11 echo 1 > events/kprobes/myevent/enable
  12 echo > kprobe_events && exit_fail # this must fail
  13 echo 0 > events/kprobes/myevent/enable
  14 echo > kprobe_events # this must succeed
  15 clear_trace