emc2 on freeBSD

[yawstick]

first time post here  and may not be the right place for this but here goes
looking at the possibility of running emc2   http://www.linuxcnc.org   
on freeBSD
It is a CNC machine control package and the preferred operating system 
is Ubuntu with a real time kernel
I'm not a power user but have been using freeBSD for quite a while and 
curious if anyone knows if there is an equivalent to the real time 
kernel in freeBSD

thanks

Paul