I've been doing cross compiling for a while and usually I would download the Code Sourcery from Mentor Graphics or the opens source arm-linux-gnueabi compiler or the one from Yocto. I just noticed there is an eabi compiler in Ubuntu Linux (as of today's Ubuntu Xenial 16.04)
$ sudo apt-get install gcc-arm-linux-gnueabi
$ sudo apt-get install gcc-arm-linux-gnueabihf
This comes handy!