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XPLINK compatibility support z/OS Language Environment Writing Interlanguage Communication Applications SA38-0684-00 |
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XPLINK Compatibility Support is defined as the ability for routines (functions) compiled with NOXPLINK (these may be non-XPLINK C or C++, COBOL, PL/I, or OS Linkage Assembler) to "transparently" call routines that are compiled with XPLINK, and vice versa. This transparent compatibility is provided at the Program Object (or Load Module, for compatibility with prelinker-built executables) boundary. That is, a Program Object (or Load Module) containing a caller of one linkage type (XPLINK or NOXPLINK) may call a routine compiled with the opposite linkage type as long as the called routine resides in a different Program Object (or Load Module). Program Objects can reside in either a PDSE or the HFS, while Load Modules must reside in a PDS. The main "call linkage" supporting XPLINK Compatibility is the DLL call mechanism, but C's fetch() and Language Environment's CEEFETCH assembler macro are also supported. The following are not supported for XPLINK
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