OCTEON Linux Kernel Build How To

This is just a memorandum of my personal instructions to cross-build linux kernel for EdgeRouter Lite (ERLite-3).  I’ve been using ERLite-3 with the latest Linux kernels for three years.  The user land distribution I use is Debian.  It works quite well for my usage of PPPoE router at home.

The important thing is to set BFD target name “mips64-unknown-linux-gnu”.

Buinding cross binutils

$ cd binutils-x.y.z
$ mkdir build
$ cd build
$ ../configure --target=mips64-unknown-linux-gnu --prefix=/opt
$ make
$ sudo make install

Building gcc

$ cd gcc-x.y.z
$ mkdir build
$ cd build
$ ../configure --target=mips64-unknown-linux-gnu --prefix=/opt --enable-languages=c --with-float=soft --disable-threads --without-ppl --without-cloog --disable-nls --disable-plugin --disable-shared --disable-tls --disable-sjlj-exceptions --disable-libssp --disable-libmudflap --disable-libgomp --disable-libquadmath --disable-libstdc__-v3 --disable-libitm
$ make
$ sudo make install

Building Linux kernel

# cd /src/linux-3.18.9
# export ARCH=mips
# export CROSS_COMPILE=mips64-unknown-linux-gnu-
# cp ../linux-3.14.1/.config .
# make oldconfig
# make
# make modules_install INSTALL_MOD_PATH=/nfsroot
# mips64-unknown-linux-gnu-strip vmlinux

Kernel Config

Here is my kernel configuration for Linux 4.2. I hope it helps you.

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