/usr/arm-linux-gnueabi/lib/libgnat-6.so is in gnat-6-arm-linux-gnueabi 6.3.0-18cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/arm-linux-gnueabi/lib/libgnat-6.so.1
/usr/arm-linux-gnueabi/lib/libgnat-6.so.1