Data areas and mapping macros for component tracing

Data Area/Mapping Macro Purpose or Related Activity
CTSS (component trace start/stop parameter list) mapped by ITTCTSS Provide information to the start/stop and display trace exit routines.
CTE (component trace entry) mapped by ITTCTE Create component trace entries.
ABDPL (ABDUMP parameter list) mapped by BLSABDPL Provide IPCS information to the CTRACE buffer find exit routine and the CTRF exit routine.
CTXI (component trace exit interface) mapped by ITTCTXI Provide component trace information to the CTRACE buffer find exit routine and the CTRF exit routine.
ES record (equate symbol record) mapped by BLSRESSY Record locations of buffers in a dump.
STAB (component trace sublevel table) mapped by ITTSTAB Define the sublevel table structure pointed to by the component trace start/stop parameter list (CTSSSNTP field).
TBWC (trace buffer writer control area) mapped by ITTTBWC Communicate between the application and component trace regarding the status of trace buffers. Input for the CTRACECS and CTRACEWR macros.
Note: For more information, see z/OS MVS Data Areas in the z/OS Internet library.