This file is indexed.

/usr/lib/gcc-cross/arm-linux-gnueabihf/6/libatomic.so is in libgcc-6-dev-armhf-cross 6.3.0-18cross1.

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

It is a symlink to /usr/lib/gcc-cross/arm-linux-gnueabihf/6/../../../../arm-linux-gnueabihf/lib/libatomic.so.1