System Tracepoints Reference

This chapter documents all static and dynamic tracepoints that are defined in the base OS/2 system code.

Tracepoint definitions are listed in the section: Trace Event Major and Minor Code Assignments. Each tracepoint listing is divided into the following six fields:

Event Description

A description of the event that is being captured (for example, DosOpen Pre-invocation)
Tracepoint
The public symbol or relative location at which the tracepoint is defined.
Minor Code
The minor trace code that is associated with the event
Type
A qualifier that can be used within the Trace control utility to enable or disable sets of dynamic tracepoints with a single command. Type Qualifiers are discussed in more detail in a following section.
Group
A second type of qualifier that can be used within the Trace control utility to enable or disable sets of dynamic tracepoints with a single command. Group Qualifiers are discussed in more detail in a following section.
Parameters
The data that is logged by the tracepoint. Parameter Notation is discussed in more detail in a following section.

For information on defining tracepoints consult the following:

• The dynamic trace customiser utility TRCUST

• The DosSysTrace API.

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