COBOL Manual for TNS/E Programs (H06.03+)

Libraries and Utility Routines
HP COBOL Manual for TNS/E Programs—520347-003
13-9
Building a DLL from Multiple Source Files
Guardian Environment
1. Compile each source file with the directive SHARED.
The result of each compilation is a linkfile.
2. Link the linkfiles into a single loadfile, using the eld utility with these options:
•
Either:
°
-export_all, which exports all program names in the source file
°
-export program-name, which exports only the specified program
name. You must repeat this option for every program name that you want
to export.
•
-shared, which links the linkfiles into a single loadfile that is a DLL
•
-optional_lib -l ZCOBDLL -l ZCREDLL, which links your file with the
DLLs named ZCOBDLL and ZCREDLL
In Example 13-7, the first four commands compile four source files (LIB1, LIB2, LIB3,
and LIB4), creating four linkable object files (LIB1O, LIB2O, LIB3O, and LIB4O). The
last command links the four linkable object files with the DLLs named ZCOBDLL and
ZCREDLL, creating the DLL named MYDLL.
OSS Environment
1. Compile each source file with these options:
•
-Wshared
•
-c
The result of each compilation is a linkfile.
Note. Do not use the RUNNABLE directive.
Example 13-7. Building a DLL From Multiple Source Files (Guardian)
ECOBOL /IN LIB1/ LIB1O;SHARED
ECOBOL /IN LIB2/ LIB2O;SHARED
ECOBOL /IN LIB3/ LIB3O;SHARED
ECOBOL /IN LIB4/ LIB4O;SHARED
ELD LIB1O LIB2O LIB3O LIB4O -shared -export_all -optional_lib
-l ZCOBDLL -l ZCREDLL -o MYDLL