Cross compiling OpenCV 3.3.0 on Ubuntu 14.04 for aarch64 and CUDA

I have OpenCV 3.3.0 (no cuda) building on my Ubuntu 14.04 host for aarch64 for a TX2 whose image I am not allowed to change. The next step is to turn CUDA on and get it to build. I installed CUDA from the Jetpack 3.1.

The opencv build appears to work until it tries to link the opencv_world module that needs to link against other compiled libraries and many CUDA .so files. Where are the CUDA files: npicc, nppidei, nppip, etc? I have searched and searched and not found them.

I find it odd that the only target listed in /usr/local/cuda/targets is x86_64-linux. Where is aarch64? Where are the header files for aarch64 cuda that I compile against? Where are the libs to link against?

$ apt-cache search cuda

So I am stuck trying to figure out how to check the configuration of my system after the Jetpack installer has run.