/usr/msp430/bin/objdump is in binutils-msp430 2.22~msp20120406-4.
This file is owned by root:root, with mode 0o755.
It is a symlink to /usr/msp430/bin/./usr/bin/msp430-objdump
/usr/msp430/bin/./usr/bin/msp430-objdump