/usr/ is in gcc-powerpc-linux-gnu 4:5.3.1-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/bin/
/usr/share/doc/
/usr/share/doc/cpp-powerpc-linux-gnu/
/usr/share/man/
/usr/share/man/man1/
/usr/bin/powerpc-linux-gnu-gcc-nm
/usr/bin/powerpc-linux-gnu-gcov
/usr/bin/powerpc-linux-gnu-gcc-ar
/usr/bin/powerpc-linux-gnu-gcc-ranlib
/usr/bin/powerpc-linux-gnu-gcc
/usr/bin/powerpc-linux-gnu-gcov-tool
/usr/share/doc/gcc-powerpc-linux-gnu
/usr/share/doc/cpp-powerpc-linux-gnu/README.Bugs
/usr/share/man/man1/powerpc-linux-gnu-gcov.1.gz
/usr/share/man/man1/powerpc-linux-gnu-gcc-ranlib.1.gz
/usr/share/man/man1/powerpc-linux-gnu-gcc-nm.1.gz
/usr/share/man/man1/powerpc-linux-gnu-gcc-ar.1.gz
/usr/share/man/man1/powerpc-linux-gnu-gcc.1.gz
/usr/share/man/man1/powerpc-linux-gnu-gcov-tool.1.gz