int kernctl_tracer_version(int fd, struct lttng_kernel_tracer_version *v);
int kernctl_tracer_abi_version(int fd, struct lttng_kernel_tracer_abi_version *v);
int kernctl_wait_quiescent(int fd);
-int kernctl_calibrate(int fd, struct lttng_kernel_calibrate *calibrate);
/*
* kernctl_syscall_mask - Get syscall mask associated to a channel FD.