The Linkage Section describes data made available from another program through the CALL statement. It can also be used to describe the format of data accessed by using the ADDRESS OF special register. For example, you can set the ADDRESS OF special register for a Linkage Section item to data that is dynamically allocated using ILE bindable APIs.
Record description entries and data item description entries in the Linkage Section provide names and descriptions of the data item, but not the storage. Storage is not reserved in the program because the data area exists elsewhere. Type-names may be defined in the LINKAGE SECTION.
Any data description clause may be used to describe items in the Linkage Section, with these exceptions:
+-------------------------------IBM Extension--------------------------------+
If the VALUE clause is specified for items other than level-88 in the Linkage section, it is treated as a comment.
+----------------------------End of IBM Extension----------------------------+
+-------------------------------IBM Extension--------------------------------+
+----------------------------End of IBM Extension----------------------------+
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