trace_here()

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:

0

Success.

-1

An error occurred (errno is set).

Errors:

ECANCELED

The requested action has been canceled.

EFAULT

Bad internal trace buffer address. The requested action has been specified out of order.

ENOMEM

Insufficient memory to allocate the trace buffers.

ENOTSUP

The requested action isn't supported.

EPERM

The application doesn't have permission to perform the action.

Examples:

Classification:

QNX Neutrino

See also:

trace_func_enter(), trace_func_exit(), trace_logb(), trace_logbc(), trace_logf(), trace_logi(), trace_nlogf(), trace_vnlogf(), TraceEvent()

tracelogger in the Utilities Reference

System Analysis Toolkit User's Guide

Analyzing Your System with Kernel Tracing chapter of the Integrated Development Environment User's Guide