Aquaris-M10-4G/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc

#!/bin/sh
# description: Kretprobe dynamic event with arguments

[ -f kprobe_events ] || exit_unsupported # this is configurable

echo 0 > events/enable
echo > kprobe_events
echo 'r:testprobe2 do_fork $retval' > kprobe_events
grep testprobe2 kprobe_events
test -d events/kprobes/testprobe2
echo 1 > events/kprobes/testprobe2/enable
( echo "forked")
echo 0 > events/kprobes/testprobe2/enable
echo '-:testprobe2' >> kprobe_events
test -d events/kprobes/testprobe2 && exit 1 || exit 0