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

   1 #!/bin/sh
   2 # description: Kretprobe dynamic event with arguments
   3
   4 [ -f kprobe_events ] || exit_unsupported # this is configurable
   5
   6 echo 0 > events/enable
   7 echo > kprobe_events
   8 echo 'r:testprobe2 _do_fork $retval' > kprobe_events
   9 grep testprobe2 kprobe_events
  10 test -d events/kprobes/testprobe2
  11 echo 1 > events/kprobes/testprobe2/enable
  12 ( echo "forked")
  13 echo 0 > events/kprobes/testprobe2/enable
  14 echo '-:testprobe2' >> kprobe_events
  15 clear_trace
  16 test -d events/kprobes/testprobe2 && exit 1 || exit 0