/usr/lib/gcc-cross/mips64-linux-gnuabi64/5/libcc1.so is in gcc-5-mips64-linux-gnuabi64 5.3.1-14ubuntu2cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/gcc-cross/mips64-linux-gnuabi64/5/../../../../mips64-linux-gnuabi64/lib/libcc1.so.0