diff -r 48780e181b38 -r 578be2adaf3e Symbian3/PDK/Source/GUID-BD9F3912-9C8B-5962-BEC7-D5F961335B49.dita --- a/Symbian3/PDK/Source/GUID-BD9F3912-9C8B-5962-BEC7-D5F961335B49.dita Tue Jul 20 12:00:49 2010 +0100 +++ b/Symbian3/PDK/Source/GUID-BD9F3912-9C8B-5962-BEC7-D5F961335B49.dita Fri Aug 13 16:47:46 2010 +0100 @@ -1,67 +1,67 @@ - - - - - -Kernel -Trace Tool OverviewDescribes the Kernel Trace tool to obtain trace information. -
Purpose

The -trace tool provides a means of extracting trace data from a memory buffer.

-
Required background

The -kernel trace tool LDD is only a part of the actual kernel trace tool.

The -actual kernel trace tool consists of the following:

    -
  • btracex.ldd

    Used -to obtain kernel activity and place it in a buffer that can be seen by user-side -applications.

  • -
  • trace filters defined -in EUser

    Used to filter out the trace information that is not required.

  • -
  • btracec.dll and btracec.lib

    Used -to provide an interface for extracting trace data from a memory buffer.

  • -
-
Key concepts -and terms
- -
user-side and kernel-side
-

When an application asks for service from an operating system it is -actually making a request for the operating system to carry this out (a state -of affairs known as user-side). The request can only be carried out by the -operating system (a state of affairs known as kernel-side).

This method -is used to prevent one process (or thread) from interfering with the internal -operation of another.

-
-
-
Architecture

The -trace tool consists of two parts, a driver on the user-side that captures -the required kernel events and writes them to a buffer that be accessed by -user-side applications. Then a trace filter, btracec.dll and btrace.lib are -used as an interface to the trace buffer.

-
APIs - - - -API -Description - - - - -

RBTrace

-

Interface to the fast-trace memory buffer.

Use btracec.dll -and btracec.lib to access this buffer.

-
- - -
-
Typical uses

The -kernel trace tool is intended to be used by developers for obtaining trace -information.

-
-Kernel Trace -Tool Overview + + + + + +Kernel +Trace Tool OverviewDescribes the Kernel Trace tool to obtain trace information. +
Purpose

The +trace tool provides a means of extracting trace data from a memory buffer.

+
Required background

The +kernel trace tool LDD is only a part of the actual kernel trace tool.

The +actual kernel trace tool consists of the following:

    +
  • btracex.ldd

    Used +to obtain kernel activity and place it in a buffer that can be seen by user-side +applications.

  • +
  • trace filters defined +in EUser

    Used to filter out the trace information that is not required.

  • +
  • btracec.dll and btracec.lib

    Used +to provide an interface for extracting trace data from a memory buffer.

  • +
+
Key concepts +and terms
+ +
user-side and kernel-side
+

When an application asks for service from an operating system it is +actually making a request for the operating system to carry this out (a state +of affairs known as user-side). The request can only be carried out by the +operating system (a state of affairs known as kernel-side).

This method +is used to prevent one process (or thread) from interfering with the internal +operation of another.

+
+
+
Architecture

The +trace tool consists of two parts, a driver on the user-side that captures +the required kernel events and writes them to a buffer that be accessed by +user-side applications. Then a trace filter, btracec.dll and btrace.lib are +used as an interface to the trace buffer.

+
APIs + + + +API +Description + + + + +

RBTrace

+

Interface to the fast-trace memory buffer.

Use btracec.dll +and btracec.lib to access this buffer.

+
+ + +
+
Typical uses

The +kernel trace tool is intended to be used by developers for obtaining trace +information.

+
+Kernel Trace +Tool Overview
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