/usr/powerpc-linux-gnu/lib64/libasan.so.1 is in lib64asan1-powerpc-cross 4.9.3-13ubuntu2cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/powerpc-linux-gnu/lib64/libasan.so.1.0.0
/usr/powerpc-linux-gnu/lib64/libasan.so.1.0.0