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

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: Kretprobe dynamic event with arguments
   4
   5 [ -f kprobe_events ] || exit_unsupported # this is configurable
   6
   7 echo 0 > events/enable
   8 echo > kprobe_events
   9 echo 'r:testprobe2 _do_fork $retval' > kprobe_events
  10 grep testprobe2 kprobe_events
  11 test -d events/kprobes/testprobe2
  12 echo 1 > events/kprobes/testprobe2/enable
  13 ( echo "forked")
  14 echo 0 > events/kprobes/testprobe2/enable
  15 echo '-:testprobe2' >> kprobe_events
  16 clear_trace
  17 test -d events/kprobes/testprobe2 && exit_fail || exit_pass