Library Routines Commonly Reported in a PLIDUMP Call Stack

The following are one-line descriptions of routines that are commonly seen in the call stack of a PLIDUMP. These provide possible starting points when analyzing the cause of a failure. For example, a failure on an ON CONVERSION (or sometimes an ON ERROR) condition can occur when an attempt is made to assign a PIC variable containing character data to a FIXED BIN(31) variable. In this scenario the call stack shows a call to MFP_ANY2 just prior to entering the ON unit.

• COBPOSTERRORPROC — A COBOL RTS error has been detected an it is notifying any registered error procedures.
• COBMEMFREE — The COBOL RTS has been called to free allocated HEAP memory.
• lpi_fini_and_return — PL/I RTS termination.
• lpi_init — PL/I RTS initialization
• lpi_release_storage — Heap based memory is being freed.
• lpi_acquire_storage — Heap-based memory is being allocated.
• MF1CL — Close a file.
• MF1DE — Delete a record in a file.
• MF1ES — Determine if the program is running under Enterprise Server.
• MF1FL — Flush file content to disk.
• MF1OP — Open a file.
• F1RE — Read a record from a file.
• MF1UP — Update a record within a file.
• MF1WR — Write a record to a file.
• MFP_ALC/MFP_ALC31 — a PL/I memory allocation has taken place. This can be explicit or can be generated for temporary variables used for concatenation, etc.
• MFP_ANY2 — Convert one PL/I data type to another data type, such as for display, assignment, etc.
• MFP_CLOSA — Automated closing of any open files at program termination.
• MFP_CMC — Compare ASCII Character Strings - possibly of unequal length
• MFP_CMCI — Compare ASCII Character Strings - receives a LENGTH parameter passed by value.
• MFP_CMC_E2 — Compare EBCDIC Character Strings - possibly of unequal length
• MFP_CMCI_E2 — Compare EBCDIC Characters Strings - receives a LENGTH parameter passed by value.
• MFP_DOUT — Typically driven by a PUT DATA statement. Convert the data element into output to the specified stream file.
• MFP_FETCH — A PL/I implicit or explicit FETCH statement has been executed.
• MFP_FETCH_REMOVE_ALL — All currently FETCH(ed) routines are being unloaded.
• MFP_FREE — A PL/I memory allocation has been freed. This can be explicit or generated by the use of temporary variables for concatentation, etc.
• MFP_OPEN — An explicit or implicit OPEN of a PL/I file has taken place.
• MFP_PLIDUMP — a CALL PLIDUMP() statement has been executed.
• MFP_SIGNAL — a SIGNAL xxxx statement has been executed, or the PL/I RTS has detected a scenario that causes it to raise a PL/I condition, typically ERROR.
• MFP_STOP — a PL/I STOP statement has been executed.
• PLI_ERROR_PROC — A COBOL RTS error has been generated and handed to PL/I.
• Q$SNDSIG — an operating system Signal is being generated.