Gerhard Postpischil's post includes some excellent advice for HLASM modules,
but the extension of the technique he suggests to COBOL he proposes:
For CoBOL, the change date could be added to Working Storage, for the same
effect.
is problematic when, as should be the case, OPT(FULL) is specified for the
compilation steps of jobs that add COBOL load modules or program objects to
libraries. With OPT(FULL) in effect the Enterprise compilers delete
unreferenced elements from working [static] storage.
It is clear that some kind of mediated LOAD will meet your special needs
here, and this is as well because the very general preoblem posed in your
original post is unsolvable.
One can hope to sit on a subset of loads in order to determine at load time
the libraries from which a load is taking place. One cannot hope to be able
to determine in general the library from which a currently resident module
was loaded retrospectively.
John Gilmore
Ashland, MA 01721
USA
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