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 # requires: kprobe_events
   5
   6 # Add new kretprobe event
   7 echo "r:testprobe2 $FUNCTION_FORK \$retval" > kprobe_events
   8 grep testprobe2 kprobe_events | grep -q 'arg1=\$retval'
   9 test -d events/kprobes/testprobe2
  10
  11 echo 1 > events/kprobes/testprobe2/enable
  12 ( echo "forked")
  13
  14 cat trace | grep testprobe2 | grep -q "<- $FUNCTION_FORK"
  15
  16 echo 0 > events/kprobes/testprobe2/enable
  17 echo '-:testprobe2' >> kprobe_events
  18 clear_trace
  19 test -d events/kprobes/testprobe2 && exit_fail || exit_pass