LINKAGE SECTION
The LINKAGE SECTION
contains declarations of variables that are passed
to the program as parameters. The current implementation supports the population of the
LINKAGE SECTION
for entry programs only.
Limitations for Z Refactoring Assistant of LINKAGE SECTION
LINKAGE SECTION
variables are currently not populated from non-entry
programs or when there are multiple programs in the refactored service. These variables are
populated as part of the working-storage section and you must follow either of these steps: - Manually move the variables to the
LINKAGE SECTION
if required. - Add the initialization manually in the working-storage section if the variable is used in the
PROCEDURE DIVISION
without an initialization.
PROCEDURE DIVISION USING
This statement is used if the refactored program is a sub-program which can be called from
another program, with the variables passed to the service specified in the USING
clause and populated in the LINKAGE SECTION
. This is common syntax utilized in
batch programs.
For CICS® programs, inter-program information
is passed using DFHCOMMAREA
. Therefore, the USING
clause of
PROCEDURE DIVISION
is not required.
For IMS, if the call is present in the
sub-program, then the PCBs and other relevant information are passed to the sub-program from the
main program, and this information must be available in the USING
clause.