Chapter 3 System Debug Interface Commands and Intrinsics

Debug may be invoked directly through an integrated set of commands and intrinsics. All MPE V intrinsics are supported. In addition, several new intrinsics have been added to enhance the functionality of MPE/iX and take advantage of the new debugger. The commands and intrinsics allow you to enter the debugger from three different paths:

Directly from a command interpreter (CI) command in a session.
From a program through an intrinsic call.
From the system during an abnormal process termination (a process abort).

Many of the commands and intrinsics that make up the system debugger interface also allow you to specify an optional character string containing Debug commands . If supplied, this string is passed to Debug for execution as part of debugger initialization.

The MPE/iX commands and intrinsics allow you to do the following:

Enter Debug from a program or in a session directly from the CI.
Generate stack trace upon demand from within a program.
Execute a defined series of Debug commands from a session, job, or program.
Arm a call to Debug to take place during the process abort sequence.
Disarm the call to Debug during the process abort sequence.

The Debug commands and intrinsics are described in the following sections. For additional information, refer to the MPE/iX Commands Reference Manual and the MPE/iX Intrinsics Reference Manual.

Chapter 3 System Debug Interface Commands and Intrinsics

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