Processing

To process the LINK MODULE command, SMP/E first ensures that the syntax used for the LINK MODULE command is valid. Next, SMP/E checks whether both the zone specified on the FROMZONE operand and the zone specified on the preceding SET command are target zones. If they are, SMP/E obtains the CSIs containing the zones for update processing with an exclusive enqueue. Once SMP/E has obtained access to the CSI data sets, it opens the zones for update mode.

If SMP/E encounters any of the following errors, the LINK MODULE command fails:

The LINK MODULE command contains syntax errors.
Either the zone specified on the FROMZONE operand or the zone specified on the SET command (or both) is not a target zone.
Errors were encountered while SMP/E was acquiring the CSIs or opening the zones.

SMP/E also performs a required operand check for the LINK MODULE command. If FROMZONE is specified, MODULE and INTOLMOD are both required. If MODULE is specified, FROMZONE and INTOLMOD are both required. Finally, if INTOLMOD is specified, FROMZONE and MODULE are both required.

When all checks are satisfied, SMP/E prepares to link the load modules and invokes the link-edit utility to do so.