帮我写一段监控 sys_enter_splice tracepoint ftrace 的语句 参考下面的写 要保证参数啥的正确 能运行echo pth1nk_test ksys_mount source=+0distring target=+0sistring filesystemtype=+0dxstring syskerneldebugtracingkprobe_eventsecho sy

echo 'p:th1nk_test sys_enter_splice source_fd=%di target_fd=%si len=%dx flags=%cx' > /sys/kernel/debug/tracing/kprobe_events echo sys_exit_splice >> /sys/kernel/debug/tracing/set_event echo 1 > /sys/kernel/debug/tracing/events/kprobes/enable echo > /sys/kernel/debug/tracing/trace && cat /sys/kernel/debug/tracing/trace