Debugging

You can choose between two different approaches to determine the cause of problems in the behavior of your application: source-language debugging or interactive debugging.

For source-language debugging, COBOL provides several language elements, compiler options, and listing outputs that make debugging easier.

If the problem with your program is not easily detected and you do not have a debugger available, you might need to analyze a storage dump of your program.

For interactive debugging, you can use z/OS® Debugger. z/OS Debugger offers these productivity enhancements:

• Interactive debugging (in full-screen or line mode), or debugging in batch mode

  During an interactive full-screen mode session, you can use the full-screen services and session panel windows on a 3270 device to debug your program while it is running.

• COBOL-like commands

  For each high-level language supported, commands for coding actions to be taken at breakpoints are provided in a syntax similar to that programming language.

• Mixed-language debugging

  You can debug an application that contains programs written in a different language. z/OS Debugger automatically determines the language of the program or subprogram being run.

• COBOL-CICS® debugging

  z/OS Debugger supports the debugging of CICS applications in both interactive and batch mode.

• Support for remote debugging

  You can used the Eclipse-based debug interface and IBM Z® Open Debug to debug programs that run on z/OS.