AT DELETE command

Gives z/OS® Debugger control when a load module is removed from storage by a Language Environment®, MVS, or CICS® delete service, such as on completion of a successful C release(), COBOL CANCEL, PL/I RELEASE, assembler DELETE macro, or EXEC CICS RELEASE.

Read syntax diagramSkip visual syntax diagramATevery_clauseDELETEload_spec(,load_spec)*command;
*
Sets a breakpoint at every DELETE of any load module.
command
A valid z/OS Debugger command.
Usage notes
  • z/OS Debugger gains control for deletes that are affected by the Language Environment delete service, MVS delete service, or EXEC CICS RELEASE. If the Dynamic Debug facility is deactivated (by entering the SET DYNDEBUG OFF command) or SVC screening is disabled, z/OS Debugger is not notified of deletes affected by the MVS delete service. Refer to IBM® z/OS Debugger Customization Guide for instructions on how to control SVC screening.
  • AT DELETE cannot specify the initial load module.
  • If this breakpoint is set in a parent enclave, it can be triggered and operated on with commands while the application is in a child enclave.
  • For a CICS application on z/OS Debugger, this breakpoint is cleared at the end of the last process in the application. For a non-CICS application on z/OS Debugger, it is cleared at the end of a process.
  • The AT DELETE command cannot be used while you replay recorded statements by using the PLAYBACK commands.
Examples
  • Each time a load module is deleted, request input from the terminal. 
    AT DELETE *;
  • Stop watching variable var1:>x when load module mymod is deleted. 
    AT DELETE mymod CLEAR AT CHANGE (var1:>x);

Refer to the following topics for more information related to the material discussed in this topic.