crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianETMLib/Common/State/Implementations/ETMDecodeStateCycleCount.cs
Version 1.0.13. The most important changes are:
-detailed defect hash added
-panic descriptions updated
-release build is working
-simple command line usage added
/*
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
using System;
using System.Collections.Generic;
using System.Text;
using SymbianUtils.BasicTypes;
using SymbianETMLib.Common.Types;
using SymbianETMLib.Common.Packets;
using SymbianETMLib.Common.Utilities;
namespace SymbianETMLib.Common.State
{
public class ETMDecodeStateCycleCount : ETMDecodeState
{
#region Constructors
public ETMDecodeStateCycleCount( ETMStateData aManager )
: base( aManager )
{
}
#endregion
#region API
public override ETMDecodeState HandleByte( SymByte aByte )
{
ETMDecodeState nextState = new ETMDecodeStateSynchronized( base.StateData );
ETMPcktCycleCount cycle = new ETMPcktCycleCount( aByte );
// Always save the byte
iPreviousBytes.Add( aByte );
// Is the top bit set? if so, then another branch packet follows.
// If not, we're done.
if ( iPreviousBytes.Count == 5 )
{
// Have obtained 5 bytes or then last byte of smaller run.
Flush();
}
else if ( cycle.MoreToCome )
{
nextState = this;
}
else
{
// Have obtained last byte of smaller run.
Flush();
}
// Done.
return nextState;
}
#endregion
#region Properties
protected bool IsFullBranch
{
get { return iPreviousBytes.Count == 5; }
}
#endregion
#region Internal methods
private void Flush()
{
// If we have a full 5 bytes, then mask off the top bits
// from the last byte because these are reserved.
int count = iPreviousBytes.Count;
if ( count == 5 )
{
iPreviousBytes[ 4 ].Value = (byte) ( iPreviousBytes[ 4 ].Value & 0xF );
}
// Build final 32 bit value
uint counter = 0;
for ( int shift = 0; shift < count; shift++ )
{
int shiftBits = shift * 8;
uint v = (uint) ( iPreviousBytes[ shift ] << shiftBits );
counter |= v;
}
}
private void Trace( uint aCounter )
{
base.DbgTrace( "CYCLE_COUNT", string.Format( " - {0}", aCounter ) );
}
#endregion
#region Internal constants
protected const string KFifthByteMask_NormalStateBranchAddressArm = "00001xxx";
protected const string KFifthByteMask_NormalStateBranchAddressThumb = "0001xxxx";
protected const string KFifthByteMask_NormalStateBranchAddressJazelle = "001xxxxx";
protected const string KFifthByteMask_Reserved1 = "00000xxx";
protected const string KFifthByteMask_StateBranchWithFollowingExceptionArm = "01001xxx";
protected const string KFifthByteMask_StateBranchWithFollowingExceptionThumb = "0101xxxx";
protected const string KFifthByteMask_StateBranchWithFollowingExceptionJazelle = "011xxxxx";
protected const string KFifthByteMask_Reserved2 = "01000xxx";
protected const string KFifthByteMask_ExceptionInArmState = "1xxxxxxx";
#endregion
#region Data members
private List<SymByte> iPreviousBytes = new List<SymByte>();
#endregion
}
}