+int kernel_enable_syscall(const char *syscall_name,
+ struct ltt_kernel_channel *channel);
+int kernel_disable_syscall(const char *syscall_name,
+ struct ltt_kernel_channel *channel);
+int kernel_track_pid(struct ltt_kernel_session *session, int pid);
+int kernel_untrack_pid(struct ltt_kernel_session *session, int pid);
+int kernel_open_metadata(struct ltt_kernel_session *session);