This file is indexed.

/usr/lib/gcc-cross/mipsel-linux-gnu/5/ecj1 is in gcj-5-mipsel-linux-gnu 5.3.1-14ubuntu2cross1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/gcc-cross/mipsel-linux-gnu/5/../../../gcc/x86_64-linux-gnu/5/ecj1