] The LKP is a feature that allows users to run standard
] Linux applications along with standard Unix applications
] on a single system using the UnixWare kernel.
]
] "During that project we often came across sections of
] code that looked very similar, in fact we wondered why
] even variable names were identical. It looked very much
] like both codes had the same origin, but that was good as
] the implementation of 95 percent of all Linux system
] calls on the Unix kernel turned out to be literally
] 'one-liners'," the source said.
]
] Only a handful of system calls - socketcall, ipc and
] clone—were fairly difficult to implement as they involved
] the obvious differentiators between Linux and Unix:
] networking, inter-process communication and kernel
] threads, the source said.