-int kernel_calibrate(int fd, struct lttng_kernel_calibrate *calibrate);
-int kernel_validate_version(int tracer_fd);
+int kernel_validate_version(int tracer_fd,
+ struct lttng_kernel_tracer_version *kernel_tracer_version,
+ struct lttng_kernel_tracer_abi_version *kernel_tracer_abi_version);