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 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 // Note: prefer kernel definitions over user-land 51 enum FPRType { 52 eNotValid = 0, 53 eFSAVE, // TODO 54 eFXSAVE, 55 eSOFT, // TODO 56 eXSAVE 57 }; 58 59 static uint32_t g_contained_eax[]; 60 static uint32_t g_contained_ebx[]; 61 static uint32_t g_contained_ecx[]; 62 static uint32_t g_contained_edx[]; 63 static uint32_t g_contained_edi[]; 64 static uint32_t g_contained_esi[]; 65 static uint32_t g_contained_ebp[]; 66 static uint32_t g_contained_esp[]; 67 68 static uint32_t g_invalidate_eax[]; 69 static uint32_t g_invalidate_ebx[]; 70 static uint32_t g_invalidate_ecx[]; 71 static uint32_t g_invalidate_edx[]; 72 static uint32_t g_invalidate_edi[]; 73 static uint32_t g_invalidate_esi[]; 74 static uint32_t g_invalidate_ebp[]; 75 static uint32_t g_invalidate_esp[]; 76 77 static uint32_t g_contained_rax[]; 78 static uint32_t g_contained_rbx[]; 79 static uint32_t g_contained_rcx[]; 80 static uint32_t g_contained_rdx[]; 81 static uint32_t g_contained_rdi[]; 82 static uint32_t g_contained_rsi[]; 83 static uint32_t g_contained_rbp[]; 84 static uint32_t g_contained_rsp[]; 85 static uint32_t g_contained_r8[]; 86 static uint32_t g_contained_r9[]; 87 static uint32_t g_contained_r10[]; 88 static uint32_t g_contained_r11[]; 89 static uint32_t g_contained_r12[]; 90 static uint32_t g_contained_r13[]; 91 static uint32_t g_contained_r14[]; 92 static uint32_t g_contained_r15[]; 93 94 static uint32_t g_invalidate_rax[]; 95 static uint32_t g_invalidate_rbx[]; 96 static uint32_t g_invalidate_rcx[]; 97 static uint32_t g_invalidate_rdx[]; 98 static uint32_t g_invalidate_rdi[]; 99 static uint32_t g_invalidate_rsi[]; 100 static uint32_t g_invalidate_rbp[]; 101 static uint32_t g_invalidate_rsp[]; 102 static uint32_t g_invalidate_r8[]; 103 static uint32_t g_invalidate_r9[]; 104 static uint32_t g_invalidate_r10[]; 105 static uint32_t g_invalidate_r11[]; 106 static uint32_t g_invalidate_r12[]; 107 static uint32_t g_invalidate_r13[]; 108 static uint32_t g_invalidate_r14[]; 109 static uint32_t g_invalidate_r15[]; 110 111 protected: 112 struct RegInfo { 113 uint32_t num_registers; 114 uint32_t num_gpr_registers; 115 uint32_t num_fpr_registers; 116 uint32_t num_avx_registers; 117 118 uint32_t last_gpr; 119 uint32_t first_fpr; 120 uint32_t last_fpr; 121 122 uint32_t first_st; 123 uint32_t last_st; 124 uint32_t first_mm; 125 uint32_t last_mm; 126 uint32_t first_xmm; 127 uint32_t last_xmm; 128 uint32_t first_ymm; 129 uint32_t last_ymm; 130 131 uint32_t first_dr; 132 uint32_t gpr_flags; 133 }; 134 135 uint64_t m_gpr_x86_64[lldb_private::k_num_gpr_registers_x86_64]; // 64-bit 136 // general 137 // purpose 138 // registers. 139 RegInfo m_reg_info; 140 FPRType 141 m_fpr_type; // determines the type of data stored by union FPR, if any. 142 lldb_private::FPR m_fpr; // floating-point registers including extended 143 // register sets. 144 lldb_private::YMM m_ymm_set; // copy of ymmh and xmm register halves. 145 std::unique_ptr<lldb_private::RegisterInfoInterface> 146 m_register_info_up; // Register Info Interface (FreeBSD or Linux) 147 148 // Determines if an extended register set is supported on the processor 149 // running the inferior process. 150 virtual bool IsRegisterSetAvailable(size_t set_index); 151 152 virtual const lldb_private::RegisterInfo *GetRegisterInfo(); 153 154 bool IsGPR(unsigned reg); 155 156 bool IsFPR(unsigned reg); 157 158 bool IsAVX(unsigned reg); 159 160 bool CopyXSTATEtoYMM(uint32_t reg, lldb::ByteOrder byte_order); 161 bool CopyYMMtoXSTATE(uint32_t reg, lldb::ByteOrder byte_order); 162 bool IsFPR(unsigned reg, FPRType fpr_type); 163 FPRType GetFPRType(); 164 165 virtual bool ReadGPR() = 0; 166 virtual bool ReadFPR() = 0; 167 virtual bool WriteGPR() = 0; 168 virtual bool WriteFPR() = 0; 169 }; 170 171 #endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_REGISTERCONTEXTPOSIX_X86_H 172