int kernctl_tracer_version(int fd, struct lttng_kernel_tracer_version *v);
int kernctl_wait_quiescent(int fd);
int kernctl_calibrate(int fd, struct lttng_kernel_calibrate *calibrate);
int kernctl_tracer_version(int fd, struct lttng_kernel_tracer_version *v);
int kernctl_wait_quiescent(int fd);
int kernctl_calibrate(int fd, struct lttng_kernel_calibrate *calibrate);