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1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #ifndef D_RMD_STEPPING_H |
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17 #define D_RMD_STEPPING_H |
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18 |
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19 // fwd declaration of DRM_DebugChannel |
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20 class DRM_DebugChannel; |
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21 |
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22 // extracted from rm_debug_kerneldriver.h |
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23 // Register definitions |
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24 #define SP_REGISTER 13 |
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25 #define LINK_REGISTER 14 |
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26 #define PC_REGISTER 15 |
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27 #define STATUS_REGISTER 16 |
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28 |
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29 class DRMDStepping : public DBase |
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30 { |
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31 public: |
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32 // ctor |
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33 DRMDStepping(DRM_DebugChannel* aChannel); |
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34 |
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35 // dtor |
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36 ~DRMDStepping(); |
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37 |
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38 // extracted from rm_debug_kerneldriver.cpp |
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39 TBool IsExecuted(TUint8 aCondition, TUint32 aStatusRegister); |
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40 TBool IsPreviousInstructionMovePCToLR(DThread *aThread); |
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41 void DecodeDataProcessingInstruction(TUint8 aOpcode, TUint32 aOp1, TUint32 aOp2, TUint32 aStatusRegister, TUint32 &aBreakAddress); |
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42 TUint32 PCAfterInstructionExecutes(DThread *aThread, TUint32 aCurrentPC, TUint32 aStatusRegister, TInt aInstSize, TUint32 &aNewRangeEnd, TBool &aChangingModes); |
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43 TUint32 ShiftedRegValue(DThread *aThread, TUint32 aInstruction, TUint32 aCurrentPC, TUint32 aStatusRegister); |
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44 TInt ModifyBreaksForStep(DThread *aThread, TUint32 aRangeStart, TUint32 aRangeEnd,TBool aResumeOnceOutOfRange, TBool aCheckForStubs, const TUint32 aNumSteps); |
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45 |
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46 private: |
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47 |
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48 // Needed to access private data until re-structuring work is complete. |
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49 friend class DRM_DebugChannel; |
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50 |
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51 DRM_DebugChannel* iChannel; // temporary reference back to DRM_DebugChannel to help with refactoring |
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52 |
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53 // Set of inline functions for decoding instructions. Formerly these were all macros |
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54 |
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55 // ARM instruction bitmasks |
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56 inline TUint32 arm_opcode(const TUint32 aInst); |
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57 |
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58 // Generic instruction defines |
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59 inline TUint32 arm_rm(const TUint32 aInst); |
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60 inline TUint32 arm_rs(const TUint32 aInst); |
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61 inline TUint32 arm_rd(const TUint32 aInst); |
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62 inline TUint32 arm_rn(const TUint32 aInst); |
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63 inline TUint32 arm_load(const TUint32 aInst); |
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64 |
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65 // Data processing instruction defines |
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66 inline TUint32 arm_data_shift(const TUint32 aInst); |
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67 inline TUint32 arm_data_c(const TUint32 aInst); |
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68 inline TUint32 arm_data_imm(const TUint32 aInst); |
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69 inline TUint32 arm_data_rot(const TUint32 aInst); |
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70 |
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71 // Single date transfer instruction defines |
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72 inline TUint32 arm_single_imm(const TUint32 aInst); |
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73 inline TUint32 arm_single_byte(const TUint32 aInst); |
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74 inline TUint32 arm_single_u(const TUint32 aInst); |
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75 inline TUint32 arm_single_pre(const TUint32 aInst); |
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76 |
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77 // Block data transfer instruction defines |
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78 inline TUint32 arm_block_reglist(const TUint32 aInst); |
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79 inline TUint32 arm_block_u(const TUint32 aInst); |
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80 inline TUint32 arm_block_pre(const TUint32 aInst); |
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81 |
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82 // Branch instruction defines |
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83 inline TUint32 arm_b_addr(const TUint32 aInst); |
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84 inline TUint32 arm_instr_b_dest(const TUint32 aInst, TUint32& aAddr); |
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85 inline TUint32 thumb_b_addr(const TUint32 aInst); |
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86 inline TUint32 thumb_instr_b_dest(const TUint32 aInst, TUint32& aAddr); |
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87 inline TUint32 arm_carry_bit(void); |
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88 |
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89 |
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90 // Thumb instruction bitmasks |
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91 inline TUint16 thumb_opcode(const TUint16 aInst); |
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92 inline TUint16 thumb_inst_7_15(const TUint16 aInst); |
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93 inline TUint16 thumb_inst_8_15(const TUint16 aInst); |
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94 |
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95 // Thumb2 decode support functions |
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96 inline TUint16 t2opcode16(const TUint16 aInst); |
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97 |
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98 inline TUint16 t2opcode16special(const TUint16 aInst); |
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99 |
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100 // Helper functions |
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101 TInt CurrentPC(DThread* aThread, TUint32& aPC); |
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102 |
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103 TInt CurrentCPSR(DThread* aThread, TUint32& aCPSR); |
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104 |
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105 TInt CurrentInstruction(DThread* aThread, TUint32& aInstruction); |
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106 |
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107 TInt CurrentArchMode(const TUint32 cpsr, Debug::TArchitectureMode& mode); |
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108 |
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109 TInt RegisterValue(DThread *aThread, const TUint32 aKernelRegisterId, TUint32 &aValue); |
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110 |
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111 TInt ReadMem32(DThread* aThread, const TUint32 aAddress, TUint32& aValue); |
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112 |
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113 TInt ReadMem16(DThread* aThread, const TUint32 aAddress, TUint16& aValue); |
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114 |
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115 TInt ReadMem8(DThread* aThread, const TUint32 aAddress, TUint8& aValue); |
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116 |
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117 inline TUint32 BitCount(const TUint32 aVal); |
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118 |
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119 inline TUint32 IsBitSet(const TUint32 aBitset, const TUint8 aBitNum); |
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120 }; |
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121 |
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122 #include "d_rmd_stepping.inl" |
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123 |
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124 #endif // D_RMD_STEPPPING_H |
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125 |
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126 // End of file - d-rmd-stepping.h |