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 LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERCONTEXTPOSIX_X86_H 10 #define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_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 RegisterContextPOSIX_x86 : public lldb_private::RegisterContext { 19 public: 20 RegisterContextPOSIX_x86(lldb_private::Thread &thread, 21 uint32_t concrete_frame_idx, 22 lldb_private::RegisterInfoInterface *register_info); 23 24 ~RegisterContextPOSIX_x86() override; 25 26 void Invalidate(); 27 28 void InvalidateAllRegisters() override; 29 30 size_t GetRegisterCount() override; 31 32 virtual size_t GetGPRSize(); 33 34 virtual size_t GetFXSAVEOffset(); 35 36 virtual unsigned GetRegisterSize(unsigned reg); 37 38 virtual unsigned GetRegisterOffset(unsigned reg); 39 40 const lldb_private::RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override; 41 42 size_t GetRegisterSetCount() override; 43 44 const lldb_private::RegisterSet *GetRegisterSet(size_t set) override; 45 46 const char *GetRegisterName(unsigned reg); 47 48 // Note: prefer kernel definitions over user-land 49 enum FPRType { 50 eNotValid = 0, 51 eFSAVE, // TODO 52 eFXSAVE, 53 eSOFT, // TODO 54 eXSAVE 55 }; 56 57 static uint32_t g_contained_eax[]; 58 static uint32_t g_contained_ebx[]; 59 static uint32_t g_contained_ecx[]; 60 static uint32_t g_contained_edx[]; 61 static uint32_t g_contained_edi[]; 62 static uint32_t g_contained_esi[]; 63 static uint32_t g_contained_ebp[]; 64 static uint32_t g_contained_esp[]; 65 66 static uint32_t g_invalidate_eax[]; 67 static uint32_t g_invalidate_ebx[]; 68 static uint32_t g_invalidate_ecx[]; 69 static uint32_t g_invalidate_edx[]; 70 static uint32_t g_invalidate_edi[]; 71 static uint32_t g_invalidate_esi[]; 72 static uint32_t g_invalidate_ebp[]; 73 static uint32_t g_invalidate_esp[]; 74 75 static uint32_t g_contained_rax[]; 76 static uint32_t g_contained_rbx[]; 77 static uint32_t g_contained_rcx[]; 78 static uint32_t g_contained_rdx[]; 79 static uint32_t g_contained_rdi[]; 80 static uint32_t g_contained_rsi[]; 81 static uint32_t g_contained_rbp[]; 82 static uint32_t g_contained_rsp[]; 83 static uint32_t g_contained_r8[]; 84 static uint32_t g_contained_r9[]; 85 static uint32_t g_contained_r10[]; 86 static uint32_t g_contained_r11[]; 87 static uint32_t g_contained_r12[]; 88 static uint32_t g_contained_r13[]; 89 static uint32_t g_contained_r14[]; 90 static uint32_t g_contained_r15[]; 91 92 static uint32_t g_invalidate_rax[]; 93 static uint32_t g_invalidate_rbx[]; 94 static uint32_t g_invalidate_rcx[]; 95 static uint32_t g_invalidate_rdx[]; 96 static uint32_t g_invalidate_rdi[]; 97 static uint32_t g_invalidate_rsi[]; 98 static uint32_t g_invalidate_rbp[]; 99 static uint32_t g_invalidate_rsp[]; 100 static uint32_t g_invalidate_r8[]; 101 static uint32_t g_invalidate_r9[]; 102 static uint32_t g_invalidate_r10[]; 103 static uint32_t g_invalidate_r11[]; 104 static uint32_t g_invalidate_r12[]; 105 static uint32_t g_invalidate_r13[]; 106 static uint32_t g_invalidate_r14[]; 107 static uint32_t g_invalidate_r15[]; 108 109 static uint32_t g_contained_fip[]; 110 static uint32_t g_contained_fdp[]; 111 112 static uint32_t g_invalidate_fip[]; 113 static uint32_t g_invalidate_fdp[]; 114 115 static uint32_t g_contained_st0_32[]; 116 static uint32_t g_contained_st1_32[]; 117 static uint32_t g_contained_st2_32[]; 118 static uint32_t g_contained_st3_32[]; 119 static uint32_t g_contained_st4_32[]; 120 static uint32_t g_contained_st5_32[]; 121 static uint32_t g_contained_st6_32[]; 122 static uint32_t g_contained_st7_32[]; 123 124 static uint32_t g_invalidate_st0_32[]; 125 static uint32_t g_invalidate_st1_32[]; 126 static uint32_t g_invalidate_st2_32[]; 127 static uint32_t g_invalidate_st3_32[]; 128 static uint32_t g_invalidate_st4_32[]; 129 static uint32_t g_invalidate_st5_32[]; 130 static uint32_t g_invalidate_st6_32[]; 131 static uint32_t g_invalidate_st7_32[]; 132 133 static uint32_t g_contained_st0_64[]; 134 static uint32_t g_contained_st1_64[]; 135 static uint32_t g_contained_st2_64[]; 136 static uint32_t g_contained_st3_64[]; 137 static uint32_t g_contained_st4_64[]; 138 static uint32_t g_contained_st5_64[]; 139 static uint32_t g_contained_st6_64[]; 140 static uint32_t g_contained_st7_64[]; 141 142 static uint32_t g_invalidate_st0_64[]; 143 static uint32_t g_invalidate_st1_64[]; 144 static uint32_t g_invalidate_st2_64[]; 145 static uint32_t g_invalidate_st3_64[]; 146 static uint32_t g_invalidate_st4_64[]; 147 static uint32_t g_invalidate_st5_64[]; 148 static uint32_t g_invalidate_st6_64[]; 149 static uint32_t g_invalidate_st7_64[]; 150 151 protected: 152 struct RegInfo { 153 uint32_t num_registers; 154 uint32_t num_gpr_registers; 155 uint32_t num_fpr_registers; 156 uint32_t num_avx_registers; 157 158 uint32_t last_gpr; 159 uint32_t first_fpr; 160 uint32_t last_fpr; 161 162 uint32_t first_st; 163 uint32_t last_st; 164 uint32_t first_mm; 165 uint32_t last_mm; 166 uint32_t first_xmm; 167 uint32_t last_xmm; 168 uint32_t first_ymm; 169 uint32_t last_ymm; 170 171 uint32_t first_dr; 172 uint32_t gpr_flags; 173 }; 174 175 uint64_t m_gpr_x86_64[lldb_private::k_num_gpr_registers_x86_64]; // 64-bit 176 // general 177 // purpose 178 // registers. 179 RegInfo m_reg_info; 180 FPRType 181 m_fpr_type; // determines the type of data stored by union FPR, if any. 182 lldb_private::FPR m_fpr; // floating-point registers including extended 183 // register sets. 184 lldb_private::YMM m_ymm_set; // copy of ymmh and xmm register halves. 185 std::unique_ptr<lldb_private::RegisterInfoInterface> 186 m_register_info_up; // Register Info Interface (FreeBSD or Linux) 187 188 // Determines if an extended register set is supported on the processor 189 // running the inferior process. 190 virtual bool IsRegisterSetAvailable(size_t set_index); 191 192 virtual const lldb_private::RegisterInfo *GetRegisterInfo(); 193 194 bool IsGPR(unsigned reg); 195 196 bool IsFPR(unsigned reg); 197 198 bool IsAVX(unsigned reg); 199 200 bool CopyXSTATEtoYMM(uint32_t reg, lldb::ByteOrder byte_order); 201 bool CopyYMMtoXSTATE(uint32_t reg, lldb::ByteOrder byte_order); 202 bool IsFPR(unsigned reg, FPRType fpr_type); 203 FPRType GetFPRType(); 204 205 virtual bool ReadGPR() = 0; 206 virtual bool ReadFPR() = 0; 207 virtual bool WriteGPR() = 0; 208 virtual bool WriteFPR() = 0; 209 }; 210 211 #endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERCONTEXTPOSIX_X86_H 212