Starting Your Product › Configuring Runtime: IMS and CICS › Debugging Applications › TIRCRUNI › Enable Trace with Debug TIRCRUNI

Enable Trace with Debug TIRCRUNI

Follow these steps:

1. The debug version of TIRCRUNI produces trace information directed to a selected LTERM. Use user exit TIRIDTRX to specify the following information:
   • TIRTMXSZ-hex size of the trace buffer
   • TIRTLTRM-eight-character Lterm specifying the location of trace data
   • TIRTMODN-MFS modname to format the screen before sending data, DFS.EDT is the default and sends data in bypass-edit mode.
2. Customize the TIRIDTRX exit and include it in the server application that needs tracing. The tracing operation only executes if a value is specified for TIRTMXSZ and TIRTLTRM.
3. (Optional) If the regular TIRCRUNI is modified for code page translations, make the same modifications to TI2CRUNI. Use MKCRUN JCL provided in CEHBSAMP.
4. Save a copy of the non-debug version of TIRCRUNI. Rename TIRCRUNI to something else.
5. Rename TI2CRUNI to TIRCRUNI and make it available to a library in the IMS STEPLIB concatenation.
6. Run a client/server transaction. The runtime sends TIRTMXSZ bytes to the TIRTLTRM with mfsmod TIRTMODN.