To enable core dumps using run-time tunables

Create a run-time tunables file; see Format of a Configuration File for Native COBOL.

Within the file, include the core_on_error tunable. By default, when a core dump occurs, it is saved with the name cblcore, but you can change this by also including the core_filename tunable. For example:

set core_on_error=131
set core_filename="coredumptest.%p%t_%d"

Note: For a complete list of parameters for these run-time tunables, see the core_on_error and core_filename topics.

Set the COBCONFIG environment variable to the location of the tunables file.

Run the application for which you are expecting a core dump file. When the run-time system receives an unhandled signal, a core dump file is created.