1 //===-- RegisterContext_i386.h ------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef liblldb_RegisterContext_i386_h_ 11 #define liblldb_RegisterContext_i386_h_ 12 13 // C Includes 14 // C++ Includes 15 // Other libraries and framework includes 16 // Project includes 17 #include "lldb/Core/Log.h" 18 #include "RegisterContextPOSIX.h" 19 20 class RegisterContext_i386 : public RegisterContextPOSIX 21 { 22 public: 23 RegisterContext_i386(lldb_private::Thread &thread, 24 uint32_t concreate_frame_idx); 25 26 ~RegisterContext_i386(); 27 28 void 29 Invalidate(); 30 31 void 32 InvalidateAllRegisters(); 33 34 size_t 35 GetRegisterCount(); 36 37 const lldb_private::RegisterInfo * 38 GetRegisterInfoAtIndex(size_t reg); 39 40 size_t 41 GetRegisterSetCount(); 42 43 const lldb_private::RegisterSet * 44 GetRegisterSet(size_t set); 45 46 unsigned 47 GetRegisterIndexFromOffset(unsigned offset); 48 49 const char * 50 GetRegisterName(unsigned reg); 51 52 bool 53 ReadRegisterValue(uint32_t reg, lldb_private::Scalar &value); 54 55 bool 56 ReadRegisterBytes(uint32_t reg, lldb_private::DataExtractor &data); 57 58 virtual bool 59 ReadRegister(const lldb_private::RegisterInfo *reg_info, 60 lldb_private::RegisterValue &value); 61 62 bool 63 ReadAllRegisterValues(lldb::DataBufferSP &data_sp); 64 65 bool 66 WriteRegisterValue(uint32_t reg, const lldb_private::Scalar &value); 67 68 bool 69 WriteRegisterBytes(uint32_t reg, lldb_private::DataExtractor &data, 70 uint32_t data_offset = 0); 71 72 virtual bool 73 WriteRegister(const lldb_private::RegisterInfo *reg_info, 74 const lldb_private::RegisterValue &value); 75 76 bool 77 WriteAllRegisterValues(const lldb::DataBufferSP &data_sp); 78 79 uint32_t 80 ConvertRegisterKindToRegisterNumber(uint32_t kind, uint32_t num); 81 82 bool 83 HardwareSingleStep(bool enable); 84 85 bool 86 UpdateAfterBreakpoint(); 87 88 struct GPR 89 { 90 uint32_t ebx; 91 uint32_t ecx; 92 uint32_t edx; 93 uint32_t esi; 94 uint32_t edi; 95 uint32_t ebp; 96 uint32_t eax; 97 uint32_t ds; 98 uint32_t es; 99 uint32_t fs; 100 uint32_t gs; 101 uint32_t orig_ax; 102 uint32_t eip; 103 uint32_t cs; 104 uint32_t eflags; 105 uint32_t esp; 106 uint32_t ss; 107 }; 108 109 struct MMSReg 110 { 111 uint8_t bytes[8]; 112 }; 113 114 struct XMMReg 115 { 116 uint8_t bytes[16]; 117 }; 118 119 struct FPU 120 { 121 uint16_t fcw; 122 uint16_t fsw; 123 uint16_t ftw; 124 uint16_t fop; 125 uint32_t ip; 126 uint32_t cs; 127 uint32_t foo; 128 uint32_t fos; 129 uint32_t mxcsr; 130 uint32_t reserved; 131 MMSReg stmm[8]; 132 XMMReg xmm[8]; 133 uint32_t pad[56]; 134 }; 135 136 // A user area like this no longer exists on FreeBSD 137 // making this a Linux artifact. Nonetheless, it is safe 138 // leaving it here while the code is being cleaned up and generalized. 139 140 struct UserArea 141 { 142 GPR regs; // General purpose registers. 143 int32_t fpvalid; // True if FPU is being used. 144 FPU i387; // FPU registers. 145 uint32_t tsize; // Text segment size. 146 uint32_t dsize; // Data segment size. 147 uint32_t ssize; // Stack segment size. 148 uint32_t start_code; // VM address of text. 149 uint32_t start_stack; // VM address of stack bottom (top in rsp). 150 int32_t signal; // Signal causing core dump. 151 int32_t reserved; // Unused. 152 uint32_t ar0; // Location of GPR's. 153 FPU* fpstate; // Location of FPR's. 154 uint32_t magic; // Identifier for core dumps. 155 char u_comm[32]; // Command causing core dump. 156 uint32_t u_debugreg[8]; // Debug registers (DR0 - DR7). 157 }; 158 private: 159 UserArea user; 160 161 ProcessMonitor &GetMonitor(); 162 163 void LogGPR(const char *title); 164 165 bool ReadGPR(); 166 bool ReadFPR(); 167 }; 168 169 #endif // #ifndef liblldb_RegisterContext_i386_h_ 170
