/usr/powerpc-linux-gnu/lib64/libmudflapth.so.0 is in lib64mudflap0-powerpc-cross 4.8.1-10ubuntu7cross0.9.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/powerpc-linux-gnu/lib64/libmudflapth.so.0.0.0