1 //===-- RegisterContextPOSIX_x86.h ------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef liblldb_RegisterContextPOSIX_x86_h_ 10 #define liblldb_RegisterContextPOSIX_x86_h_ 11 12 #include "RegisterContext_x86.h" 13 #include "RegisterInfoInterface.h" 14 #include "lldb-x86-register-enums.h" 15 #include "lldb/Target/RegisterContext.h" 16 #include "lldb/Utility/Log.h" 17 18 class ProcessMonitor; 19 20 class RegisterContextPOSIX_x86 : public lldb_private::RegisterContext { 21 public: 22 RegisterContextPOSIX_x86(lldb_private::Thread &thread, 23 uint32_t concrete_frame_idx, 24 lldb_private::RegisterInfoInterface *register_info); 25 26 ~RegisterContextPOSIX_x86() override; 27 28 void Invalidate(); 29 30 void InvalidateAllRegisters() override; 31 32 size_t GetRegisterCount() override; 33 34 virtual size_t GetGPRSize(); 35 36 virtual size_t GetFXSAVEOffset(); 37 38 virtual unsigned GetRegisterSize(unsigned reg); 39 40 virtual unsigned GetRegisterOffset(unsigned reg); 41 42 const lldb_private::RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override; 43 44 size_t GetRegisterSetCount() override; 45 46 const lldb_private::RegisterSet *GetRegisterSet(size_t set) override; 47 48 const char *GetRegisterName(unsigned reg); 49 50 uint32_t ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, 51 uint32_t num) override; 52 53 // Note: prefer kernel definitions over user-land 54 enum FPRType { 55 eNotValid = 0, 56 eFSAVE, // TODO 57 eFXSAVE, 58 eSOFT, // TODO 59 eXSAVE 60 }; 61 62 static uint32_t g_contained_eax[]; 63 static uint32_t g_contained_ebx[]; 64 static uint32_t g_contained_ecx[]; 65 static uint32_t g_contained_edx[]; 66 static uint32_t g_contained_edi[]; 67 static uint32_t g_contained_esi[]; 68 static uint32_t g_contained_ebp[]; 69 static uint32_t g_contained_esp[]; 70 71 static uint32_t g_invalidate_eax[]; 72 static uint32_t g_invalidate_ebx[]; 73 static uint32_t g_invalidate_ecx[]; 74 static uint32_t g_invalidate_edx[]; 75 static uint32_t g_invalidate_edi[]; 76 static uint32_t g_invalidate_esi[]; 77 static uint32_t g_invalidate_ebp[]; 78 static uint32_t g_invalidate_esp[]; 79 80 static uint32_t g_contained_rax[]; 81 static uint32_t g_contained_rbx[]; 82 static uint32_t g_contained_rcx[]; 83 static uint32_t g_contained_rdx[]; 84 static uint32_t g_contained_rdi[]; 85 static uint32_t g_contained_rsi[]; 86 static uint32_t g_contained_rbp[]; 87 static uint32_t g_contained_rsp[]; 88 static uint32_t g_contained_r8[]; 89 static uint32_t g_contained_r9[]; 90 static uint32_t g_contained_r10[]; 91 static uint32_t g_contained_r11[]; 92 static uint32_t g_contained_r12[]; 93 static uint32_t g_contained_r13[]; 94 static uint32_t g_contained_r14[]; 95 static uint32_t g_contained_r15[]; 96 97 static uint32_t g_invalidate_rax[]; 98 static uint32_t g_invalidate_rbx[]; 99 static uint32_t g_invalidate_rcx[]; 100 static uint32_t g_invalidate_rdx[]; 101 static uint32_t g_invalidate_rdi[]; 102 static uint32_t g_invalidate_rsi[]; 103 static uint32_t g_invalidate_rbp[]; 104 static uint32_t g_invalidate_rsp[]; 105 static uint32_t g_invalidate_r8[]; 106 static uint32_t g_invalidate_r9[]; 107 static uint32_t g_invalidate_r10[]; 108 static uint32_t g_invalidate_r11[]; 109 static uint32_t g_invalidate_r12[]; 110 static uint32_t g_invalidate_r13[]; 111 static uint32_t g_invalidate_r14[]; 112 static uint32_t g_invalidate_r15[]; 113 114 protected: 115 struct RegInfo { 116 uint32_t num_registers; 117 uint32_t num_gpr_registers; 118 uint32_t num_fpr_registers; 119 uint32_t num_avx_registers; 120 121 uint32_t last_gpr; 122 uint32_t first_fpr; 123 uint32_t last_fpr; 124 125 uint32_t first_st; 126 uint32_t last_st; 127 uint32_t first_mm; 128 uint32_t last_mm; 129 uint32_t first_xmm; 130 uint32_t last_xmm; 131 uint32_t first_ymm; 132 uint32_t last_ymm; 133 134 uint32_t first_dr; 135 uint32_t gpr_flags; 136 }; 137 138 uint64_t m_gpr_x86_64[lldb_private::k_num_gpr_registers_x86_64]; // 64-bit 139 // general 140 // purpose 141 // registers. 142 RegInfo m_reg_info; 143 FPRType 144 m_fpr_type; // determines the type of data stored by union FPR, if any. 145 lldb_private::FPR m_fpr; // floating-point registers including extended 146 // register sets. 147 lldb_private::YMM m_ymm_set; // copy of ymmh and xmm register halves. 148 std::unique_ptr<lldb_private::RegisterInfoInterface> 149 m_register_info_up; // Register Info Interface (FreeBSD or Linux) 150 151 // Determines if an extended register set is supported on the processor 152 // running the inferior process. 153 virtual bool IsRegisterSetAvailable(size_t set_index); 154 155 virtual const lldb_private::RegisterInfo *GetRegisterInfo(); 156 157 bool IsGPR(unsigned reg); 158 159 bool IsFPR(unsigned reg); 160 161 bool IsAVX(unsigned reg); 162 163 lldb::ByteOrder GetByteOrder(); 164 165 bool CopyXSTATEtoYMM(uint32_t reg, lldb::ByteOrder byte_order); 166 bool CopyYMMtoXSTATE(uint32_t reg, lldb::ByteOrder byte_order); 167 bool IsFPR(unsigned reg, FPRType fpr_type); 168 FPRType GetFPRType(); 169 170 virtual bool ReadGPR() = 0; 171 virtual bool ReadFPR() = 0; 172 virtual bool WriteGPR() = 0; 173 virtual bool WriteFPR() = 0; 174 }; 175 176 #endif // liblldb_RegisterContextPOSIX_x86_h_ 177