Parameter Data Passed to Exits

Figure 24 shows how parameter data is defined and passed to each of the exits. Note that some parameters are exit specific.

For all exits:

  • GPR1 will point to a parameter list.
  • The parameter list will contain two entries for the AFTER REGION INITIALIZATION and BEFORE REGION TERMINATION exits (XLARIUSR, XLBRTUSR). There will be four entries for the BEFORE COMMAND, AFTER COMMAND, AFTER THREAD INITIALIZATION and BEFORE THREAD TERMINATION exits (XLBCEUSR, XLACEUSR, XLATIUSR and XLBTTUSR).
Figure 24. User exits overview
User exits overview