Rational Developer for System z
Enterprise COBOL for z/OS, Version 4.1, Compiler and Runtime Migration Guide


Compiler options relevant for programs run on IMS

Table 1 lists Enterprise COBOL compiler options relevant to COBOL IMS applications.

Table 1. Compiler options relevant for Enterprise COBOL programs run on IMS
Compiler option Comments
RENT The RENT compiler option causes Enterprise COBOL to produce reentrant code and allows you to place the COBOL modules in the LPA (Link Pack Area) or ELPA (Extended Link Pack Area) and thus shared among dependent regions under IMS. Also, the modules cannot be overwritten, since the LPA/ELPA have a storage protect key.

RENT allows you to run your IMS programs in either preload or nonpreload mode, without compiling with different options.


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