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QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
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T
trace_here()
Insert a trace event for the current address

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX Tool Suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
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      - trace_func_enter()
        Insert a trace event for the entry to a function
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        Insert a trace event for the exit from a function
      - _TRACE_GET_STRUCT()
        Get the flag from the header of a trace event
      - trace_here()
        Insert a trace event for the current address
      - trace_logb()
        Insert a user combine trace event
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        Insert a trace event of an arbitrary class and type with arbitrary data
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        Insert a user string trace event
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        Insert a user simple trace event
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        Insert a user string trace event, specifying a maximum string length
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        Insert a user string trace event, using a variable argument list
      - TraceEvent()
        Control the tracing of kernel events
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        Process trace data
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        Attach a callback to a trace event
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        Attach a callback to a range of events
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        Set the traceparser debug modes
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        Destroy a traceparser state structure
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        Get information about traceparser
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        Initialize the traceparser state information
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Typographical Conventions, Support, and Licensing
This section describes the typographical conventions used throughout the documentation, explains how to obtain technical support, and provides some information about licensing.

trace_here()

QNX SDP8.0C Library ReferenceAPIDeveloper

Insert a trace event for the current address

Synopsis:

#include <sys/neutrino.h>
#include <sys/trace.h>

int trace_here( void );

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The trace_here() function calls TraceEvent() to insert an event of class _NTO_TRACE_SYSTEM and type _NTO_TRACE_SYS_ADDRESS for the current address.

Returns:

See the TraceEvent() Returns section.

Errors:

See the TraceEvent() Errors section.

Classification:

QNX OS


Safety:
Cancellation point	No
Signal handler	Yes
Thread	Yes

Page updated: March 05, 2025