gtpi1m1nSystem Installation Support Reference

Online Mini Dump

User exit routine UCCOMD is invoked from system error processing if the OMD exit point is active and ZASER DATAX has been entered. UCCOMD allows you to check the ISO-C stack before dumping system data and to collect additional system data and add it to the system data that system error processing normally collects for the dump data user exit (CPSU).

Note:
Do not use UCCOMD if you do not have the Online Mini Dump Facility.

General Conditions at Entry

The registers at entry to UCCOMD are:

R10
Pointer to the CPSE workarea.

R11-R15
See User Exit Routines - Common Entry Conditions.
Note:
See a listing of CCCPSE for the contents of the remaining registers.

System Conditions at Entry

System state
Supervisor

System mask
Masked

Protect key
0

Address space
SVM.

Programming Considerations at Entry

  1. User processing must not change the system state. Return must be made to the next sequential instruction.
  2. See the UCCOMD prologue in CUSR for the sample code for adding additional data.
  3. See User Exit Routines - Common Programming Considerations for other considerations.

Programming Considerations on Return

See User Exit Routines - Common Return Conditions.

General Conditions on Return

See User Exit Routines - Common Return Conditions.