DML Precompile, PL/I Compile, and Link-Edit JCL › Compiling a PL/I Program

Compiling a PL/I Program

To compile a PL/I program under the DML precompiler:

1. Execute the program IDMSDMLP
2. Execute the PL/I compiler
3. Link edit

Input to IDMSDMLP consists of source code written in PL/I and DML, protocol/control information, and dictionary record descriptions. Output from IDMSDMLP includes:

• A source PL/I program
• A DML source listing and diagnostics

Input to the PL/I compiler consists of the source program produced by IDMSDMLP. Output includes:

• An object program
• PL/I listings

Input to the linkage editor consists of the object program produced by the PL/I compiler. Output includes:

• A load module
• A link-edit map

The following figure illustrates the steps involved in compiling a PL/I program.

The JCL used to compile and link edit the DMLP source statements under the CA IDMS/DB central version are shown in this appendix. Local mode considerations are noted where appropriate.

Note: IBM PL/I compilers running under z/VSE do not generate reentrant code. Accordingly, if your applications are large, multiple user deadlocks may result because of space limitations.