"IBM Mainframe Assembler List" <[email protected]> wrote on
10/19/2023 09:49:31 AM:
> At my company, the standard going back at least 37 years has been to
> compile or assemble, then the job immediately NCAL links the object
> deck into an "object module" (not to be confused with PDSE "program
> object"). The object deck is discarded, the object module is saved.
>
> I'm not sure *why* we do this, except that it makes it easier to
> link the object into composite load modules.
>
> Is this common? Or do other groups save the object deck?
Now I'm talking z/VSE-land here, but... Every shop I have been in
catalogs the SYSLNK object deck as an "object module" (library member type
OBJ) without doing any linkage editor step. Anytime we run the linkage
editor it is always to create a load module (library member type PHASE).
When we want to make composite load modules we can string linkage
editor INCLUDE statements of OBJ members, via SYSLNK, to feed into the
linkage editor. This step can also include a SYSLNK object deck at the
same time and if there is a single PHASE statement (in SYSLNK) then a
single load module is the result. But multiple PHASE statements can be
interspersed in SYSLNK to create multiple load modules in a single
execution of the linkage editor.
I did work in a couple of MVS/SP shops but I was not as familiar
with the compile processes there and always created only load modules.
Sincerely,
Dave Clark
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