/usr/arm-linux-gnueabi/lib/arm-linux-gnueabihf/libobjc_gc.so.3 is in libhfobjc3-armel-cross 4.6.3-1ubuntu5cross1.62.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/arm-linux-gnueabi/lib/arm-linux-gnueabihf/libobjc_gc.so.3.0.0