selftests/user_events: Add ftrace self-test for empty arguments events

Tests to ensure events that has empty arguments can input trace record
correctly when using ftrace.

Link: https://lkml.kernel.org/r/20230606062027.1008398-3-sunliming@kylinos.cn

Acked-by: Beau Belgrave <beaub@linux.microsoft.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
1 file changed