crashanalysercmd/Libraries/Engine/CrashItemLib/Engine/ProblemDetectors/Registers/CIPDRegAvailability.cs
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/Libraries/Engine/CrashItemLib/Engine/ProblemDetectors/Registers/CIPDRegAvailability.cs Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,134 @@
+/*
+* 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.Text;
+using System.Collections.Generic;
+using CrashItemLib.Crash.Container;
+using CrashItemLib.Crash.Stacks;
+using CrashItemLib.Crash.Registers;
+using CrashItemLib.Crash.Base;
+using CrashItemLib.Crash.Messages;
+using CrashItemLib.Crash.Summarisable;
+using SymbianStructuresLib.Arm.Registers;
+using SymbianUtils.Range;
+
+namespace CrashItemLib.Engine.ProblemDetectors.Registers
+{
+ internal class CIPDRegAvailability : CIProblemDetector
+ {
+ #region Constructors
+ public CIPDRegAvailability()
+ {
+ }
+ #endregion
+
+ #region From CIProblemDetector
+ public override void Check( CIContainer aContainer )
+ {
+ CISummarisableEntityList list = aContainer.Summaries;
+ foreach ( CISummarisableEntity entry in list )
+ {
+ // Check that each stack contains some registers and at least the SP.
+ bool stackAvailable = entry.IsAvailable( CISummarisableEntity.TElement.EElementStack );
+ bool regsAvailable = entry.IsAvailable( CISummarisableEntity.TElement.EElementRegisters );
+ //
+ if ( stackAvailable )
+ {
+ CIStack stack = entry.Stack;
+ //
+ if ( regsAvailable )
+ {
+ CIRegisterList regs = stack.Registers;
+
+ // Check that SP, LR and PC are available
+ bool pointerAvailable = regs.Contains( TArmRegisterType.EArmReg_SP );
+ if ( !pointerAvailable )
+ {
+ base.CreateWarning( aContainer, stack,
+ LibResources.CIPDRegAvailability_MissingSP_Title,
+ string.Format( LibResources.CIPDRegAvailability_MissingSP_Description, base.CreateIdentifierText( entry ) )
+ );
+ }
+ //
+ bool lrAvailable = regs.Contains( TArmRegisterType.EArmReg_LR );
+ if ( !lrAvailable )
+ {
+ base.CreateWarning( aContainer, stack,
+ LibResources.CIPDRegAvailability_MissingLR_Title,
+ string.Format( LibResources.CIPDRegAvailability_MissingLR_Description, base.CreateIdentifierText( entry ) )
+ );
+ }
+ //
+ bool pcAvailable = regs.Contains( TArmRegisterType.EArmReg_PC );
+ if ( !pcAvailable )
+ {
+ base.CreateWarning( aContainer, stack,
+ LibResources.CIPDRegAvailability_MissingPC_Title,
+ string.Format( LibResources.CIPDRegAvailability_MissingPC_Description, base.CreateIdentifierText( entry ) )
+ );
+ }
+
+ // If R0 is available, check if it is 0 and check whether an exception occurred - if so, it was possibly
+ // caused by de-referencing a NULL this pointer.
+ bool threadAvailable = entry.IsAvailable( CISummarisableEntity.TElement.EElementThread );
+ if ( threadAvailable )
+ {
+ if ( regs.Contains( TArmRegisterType.EArmReg_00 ) )
+ {
+ CIRegister r0 = regs[ TArmRegisterType.EArmReg_00 ];
+ //
+ bool r0WasNull = ( r0.Value == 0 );
+ bool wasException = entry.IsAbnormalTermination && ( entry.Thread.ExitInfo.Type == CrashItemLib.Crash.ExitInfo.CIExitInfo.TExitType.EExitTypeException );
+ bool wasKernExec3 = entry.IsAbnormalTermination && ( entry.Thread.ExitInfo.Type == CrashItemLib.Crash.ExitInfo.CIExitInfo.TExitType.EExitTypePanic &&
+ entry.Thread.ExitInfo.Category.ToUpper() == "KERN-EXEC" &&
+ entry.Thread.ExitInfo.Reason == 3 );
+ //
+ if ( r0WasNull && ( wasException || wasKernExec3 ) )
+ {
+ base.CreateWarning( aContainer, r0,
+ LibResources.CIPDRegAvailability_NullThisPointer_Title,
+ string.Format( LibResources.CIPDRegAvailability_NullThisPointer_Description, base.CreateIdentifierText( entry ) )
+ );
+ }
+ }
+ }
+ }
+ else
+ {
+ base.CreateWarning( aContainer, stack,
+ LibResources.CIPDRegAvailability_NoRegsForStack_Title,
+ string.Format( LibResources.CIPDRegAvailability_NoRegsForStack_Description, base.CreateIdentifierText( entry ) )
+ );
+ }
+ }
+ }
+ }
+ #endregion
+
+ #region Properties
+ #endregion
+
+ #region Internal methods
+ #endregion
+
+ #region From System.Object
+ #endregion
+
+ #region Data members
+ #endregion
+ }
+}