/usr/arm-linux-gnueabi/bin/ar is in binutils-arm-linux-gnueabi 2.25-5.
This file is owned by root:root, with mode 0o755.
It is a symlink to /usr/arm-linux-gnueabi/bin/./usr/bin/arm-linux-gnueabi-ar
/usr/arm-linux-gnueabi/bin/./usr/bin/arm-linux-gnueabi-ar