Intel® Itanium® Processor specific Application Binary Interface (ABI)
The System V Application Binary Interface defines a system interface for compiled application programs. Its purpose is to establish a standard binary interface for application programs on systems that implement the interfaces defined in the X/Open Common Application Environment Specification, Issue 4.2 (also known as the “Single UNIX Specification”) and the System V Interface Definition, Issue 4. This includes, but is not limited to, systems that have implemented UNIX System V, Release 4.