/usr/lib/gcc-cross/arm-linux-gnueabi/7/libgo.so is in gccgo-7-arm-linux-gnueabi 7.3.0-16ubuntu3cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/gcc-cross/arm-linux-gnueabi/7/../../../../arm-linux-gnueabi/lib/libgo.so.11