1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 * 

    14 * Description:

    15 *

    16 */

    17 using System;

    18 using System.Text;

    19 using System.Collections.Generic;

    20 using CrashItemLib.Crash;

    21 using CrashItemLib.Crash.Base;

    22 using CrashItemLib.Crash.Messages;

    23 using CrashItemLib.Crash.Container;

    24 using CrashItemLib.Crash.Threads;

    25 using SymbianStructuresLib.Arm.Registers;

    26 

    27 namespace CrashItemLib.Crash.Registers.Special

    28 {

    29     public class CIRegisterFSR : CIRegister

    30 	{

    31         #region Enumerations

    32         public enum TFaultType

    33         {

    34             EFaultTypeUnknown = -1,

    35             EFaultTypeVectorException = 00,

    36             EFaultTypeAlignmentFault = 01,

    37             EFaultTypeTerminalException = 02,

    38             EFaultTypeAlignmentFault2 = 03,

    39             EFaultTypeExternalAbortOnLinefetchForSectionTranslation = 04,

    40             EFaultTypeSectionTranslationFault = 05,

    41             EFaultTypeExternalAbortOnLineFetchForPageTranslation = 06,

    42             EFaultTypePageTranslationFault = 07,

    43             EFaultTypeExternalAbortOnNonLinefetchForSectionTranslation = 08,

    44             EFaultTypeDomainFaultOnSectionTranslation = 09,

    45             EFaultTypeExternalAbortOnNonLinefetchForPageTranslation = 10,

    46             EFaultTypeDomainFaultOnPageTranslation = 11,

    47             EFaultTypeExternalAbortOnFirstLevelTranslation = 12,

    48             EFaultTypePermissionFaultOnSection = 13,

    49             EFaultTypeExternalAbortOnSecondLevelTranslation = 14,

    50             EFaultTypePermissionFaultOnPage = 15

    51         }

    52         #endregion

    53         

    54         #region Constructors

    55         public CIRegisterFSR( CIRegisterList aCollection, uint aValue )

    56             : base( aCollection, TArmRegisterType.EArmReg_FSR, aValue )

    57         {

    58             PrepareMessage();

    59         }

    60         #endregion

    61 

    62         #region API

    63         #endregion

    64 

    65         #region Properties

    66         public TFaultType FaultType

    67         {

    68             get

    69             {

    70                 uint fsr = System.Convert.ToUInt32( base.Value );

    71                 uint fsrMask = 0xF; // Look at first 4 bits

    72                 fsr = fsr & fsrMask;

    73                 //

    74                 TFaultType type = TFaultType.EFaultTypeUnknown;

    75                 if ( fsr >= 0 && fsr < (uint) TFaultType.EFaultTypePermissionFaultOnPage )

    76                 {

    77                     type = (TFaultType) fsr;

    78                 }

    79                 //

    80                 return type;

    81             }

    82         }

    83 

    84         public string FaultDescription

    85         {

    86             get

    87             {

    88                 string ret = "Unknown";

    89                 //

    90                 switch ( FaultType )

    91                 {

    92                 default:

    93                 case TFaultType.EFaultTypeUnknown:

    94                     break;

    95                 case TFaultType.EFaultTypeVectorException:

    96                     ret = "Vector exception";

    97                     break;

    98                 case TFaultType.EFaultTypeAlignmentFault:

    99                     ret = "Alignment fault";

   100                     break;

   101                 case TFaultType.EFaultTypeTerminalException:

   102                     ret = "Terminal exception";

   103                     break;

   104                 case TFaultType.EFaultTypeAlignmentFault2:

   105                     ret = "Alignment fault";

   106                     break;

   107                 case TFaultType.EFaultTypeExternalAbortOnLinefetchForSectionTranslation:

   108                     ret = "External abort on linefetch for section translation";

   109                     break;

   110                 case TFaultType.EFaultTypeSectionTranslationFault:

   111                     ret = "Section translation fault (unmapped virtual address)";

   112                     break;

   113                 case TFaultType.EFaultTypeExternalAbortOnLineFetchForPageTranslation:

   114                     ret = "External abort on linefetch for page translation";

   115                     break;

   116                 case TFaultType.EFaultTypePageTranslationFault:

   117                     ret = "Page translation fault (unmapped virtual address)";

   118                     break;

   119                 case TFaultType.EFaultTypeExternalAbortOnNonLinefetchForSectionTranslation:

   120                     ret = "External abort on non-linefetch for section translation";

   121                     break;

   122                 case TFaultType.EFaultTypeDomainFaultOnSectionTranslation:

   123                     ret = "Domain fault on section translation (access to invalid domain)";

   124                     break;

   125                 case TFaultType.EFaultTypeExternalAbortOnNonLinefetchForPageTranslation:

   126                     ret = "External abort on non-linefetch for page translation";

   127                     break;

   128                 case TFaultType.EFaultTypeDomainFaultOnPageTranslation:

   129                     ret = "Domain fault on page translation (access to invalid domain)";

   130                     break;

   131                 case TFaultType.EFaultTypeExternalAbortOnFirstLevelTranslation:

   132                     ret = "External abort on first level translation";

   133                     break;

   134                 case TFaultType.EFaultTypePermissionFaultOnSection:

   135                     ret = "Permission fault on section (no permission to access virtual address)";

   136                     break;

   137                 case TFaultType.EFaultTypeExternalAbortOnSecondLevelTranslation:

   138                     ret = "External abort on second level translation";

   139                     break;

   140                 case TFaultType.EFaultTypePermissionFaultOnPage:

   141                     ret = "Permission fault on page (no permission to access virtual address)";

   142                     break;

   143                 }

   144                 //

   145                 return ret;

   146             }

   147         }

   148         #endregion

   149 

   150         #region Operators

   151         public static implicit operator TFaultType( CIRegisterFSR aReg )

   152         {

   153             return aReg.FaultType;

   154         }

   155         #endregion

   156 

   157         #region Internal methods

   158         private void PrepareMessage()

   159         {

   160             CIMessage message = CIMessage.NewMessage( Container );

   161             //

   162             message.Title = "Fault Status";

   163             message.AddLineFormatted( "The FSR (Fault Status Register) indicates that the processor encountered an fault of type [{0}].", FaultDescription );

   164             //

   165             base.AddChild( message );

   166         }

   167         #endregion

   168 

   169         #region Data members

   170         #endregion

   171     }

   172 }