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 protected: 110 struct RegInfo { 111 uint32_t num_registers; 112 uint32_t num_gpr_registers; 113 uint32_t num_fpr_registers; 114 uint32_t num_avx_registers; 115 116 uint32_t last_gpr; 117 uint32_t first_fpr; 118 uint32_t last_fpr; 119 120 uint32_t first_st; 121 uint32_t last_st; 122 uint32_t first_mm; 123 uint32_t last_mm; 124 uint32_t first_xmm; 125 uint32_t last_xmm; 126 uint32_t first_ymm; 127 uint32_t last_ymm; 128 129 uint32_t first_dr; 130 uint32_t gpr_flags; 131 }; 132 133 uint64_t m_gpr_x86_64[lldb_private::k_num_gpr_registers_x86_64]; // 64-bit 134 // general 135 // purpose 136 // registers. 137 RegInfo m_reg_info; 138 FPRType 139 m_fpr_type; // determines the type of data stored by union FPR, if any. 140 lldb_private::FPR m_fpr; // floating-point registers including extended 141 // register sets. 142 lldb_private::YMM m_ymm_set; // copy of ymmh and xmm register halves. 143 std::unique_ptr<lldb_private::RegisterInfoInterface> 144 m_register_info_up; // Register Info Interface (FreeBSD or Linux) 145 146 // Determines if an extended register set is supported on the processor 147 // running the inferior process. 148 virtual bool IsRegisterSetAvailable(size_t set_index); 149 150 virtual const lldb_private::RegisterInfo *GetRegisterInfo(); 151 152 bool IsGPR(unsigned reg); 153 154 bool IsFPR(unsigned reg); 155 156 bool IsAVX(unsigned reg); 157 158 bool CopyXSTATEtoYMM(uint32_t reg, lldb::ByteOrder byte_order); 159 bool CopyYMMtoXSTATE(uint32_t reg, lldb::ByteOrder byte_order); 160 bool IsFPR(unsigned reg, FPRType fpr_type); 161 FPRType GetFPRType(); 162 163 virtual bool ReadGPR() = 0; 164 virtual bool ReadFPR() = 0; 165 virtual bool WriteGPR() = 0; 166 virtual bool WriteFPR() = 0; 167 }; 168 169 #endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERCONTEXTPOSIX_X86_H 170