Matlab Coder multiple entry point files Problem

Hi, I'm using Matlab Coder and I want to create one cpp file from 3 files (put them on the entry point). the generate function works but I get in the cpp and h file only 2 out of 3 functions. I'm using R2015a. is it a known problem? what am i doing wrong.

I also try to create DLL from those files and get an linkage error. can I create a 3 files DLL?

thanks, Eyal.