1 //===-- NativeRegisterContextLinux_arm64.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 #if defined(__arm64__) || defined(__aarch64__) 10 11 #ifndef lldb_NativeRegisterContextLinux_arm64_h 12 #define lldb_NativeRegisterContextLinux_arm64_h 13 14 #include "Plugins/Process/Linux/NativeRegisterContextLinux.h" 15 #include "Plugins/Process/Utility/NativeRegisterContextDBReg_arm64.h" 16 #include "Plugins/Process/Utility/RegisterInfoPOSIX_arm64.h" 17 18 #include <asm/ptrace.h> 19 20 namespace lldb_private { 21 namespace process_linux { 22 23 class NativeProcessLinux; 24 25 class NativeRegisterContextLinux_arm64 26 : public NativeRegisterContextLinux, 27 public NativeRegisterContextDBReg_arm64 { 28 public: 29 NativeRegisterContextLinux_arm64( 30 const ArchSpec &target_arch, NativeThreadProtocol &native_thread, 31 std::unique_ptr<RegisterInfoPOSIX_arm64> register_info_up); 32 33 uint32_t GetRegisterSetCount() const override; 34 35 uint32_t GetUserRegisterCount() const override; 36 37 const RegisterSet *GetRegisterSet(uint32_t set_index) const override; 38 39 Status ReadRegister(const RegisterInfo *reg_info, 40 RegisterValue ®_value) override; 41 42 Status WriteRegister(const RegisterInfo *reg_info, 43 const RegisterValue ®_value) override; 44 45 Status ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override; 46 47 Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override; 48 49 void InvalidateAllRegisters() override; 50 51 std::vector<uint32_t> 52 GetExpeditedRegisters(ExpeditedRegs expType) const override; 53 54 bool RegisterOffsetIsDynamic() const override { return true; } 55 56 llvm::Expected<MemoryTaggingDetails> 57 GetMemoryTaggingDetails(int32_t type) override; 58 59 protected: 60 Status ReadGPR() override; 61 62 Status WriteGPR() override; 63 64 Status ReadFPR() override; 65 66 Status WriteFPR() override; 67 68 void *GetGPRBuffer() override { return &m_gpr_arm64; } 69 70 // GetGPRBufferSize returns sizeof arm64 GPR ptrace buffer, it is different 71 // from GetGPRSize which returns sizeof RegisterInfoPOSIX_arm64::GPR. 72 size_t GetGPRBufferSize() { return sizeof(m_gpr_arm64); } 73 74 void *GetFPRBuffer() override { return &m_fpr; } 75 76 size_t GetFPRSize() override { return sizeof(m_fpr); } 77 78 private: 79 bool m_gpr_is_valid; 80 bool m_fpu_is_valid; 81 bool m_sve_buffer_is_valid; 82 bool m_mte_ctrl_is_valid; 83 84 bool m_sve_header_is_valid; 85 bool m_pac_mask_is_valid; 86 87 struct user_pt_regs m_gpr_arm64; // 64-bit general purpose registers. 88 89 RegisterInfoPOSIX_arm64::FPU 90 m_fpr; // floating-point registers including extended register sets. 91 92 SVEState m_sve_state; 93 struct user_sve_header m_sve_header; 94 std::vector<uint8_t> m_sve_ptrace_payload; 95 96 bool m_refresh_hwdebug_info; 97 98 struct user_pac_mask { 99 uint64_t data_mask; 100 uint64_t insn_mask; 101 }; 102 103 struct user_pac_mask m_pac_mask; 104 105 uint64_t m_mte_ctrl_reg; 106 107 bool IsGPR(unsigned reg) const; 108 109 bool IsFPR(unsigned reg) const; 110 111 Status ReadAllSVE(); 112 113 Status WriteAllSVE(); 114 115 Status ReadSVEHeader(); 116 117 Status WriteSVEHeader(); 118 119 Status ReadPAuthMask(); 120 121 Status ReadMTEControl(); 122 123 Status WriteMTEControl(); 124 125 bool IsSVE(unsigned reg) const; 126 bool IsPAuth(unsigned reg) const; 127 bool IsMTE(unsigned reg) const; 128 129 uint64_t GetSVERegVG() { return m_sve_header.vl / 8; } 130 131 void SetSVERegVG(uint64_t vg) { m_sve_header.vl = vg * 8; } 132 133 void *GetSVEHeader() { return &m_sve_header; } 134 135 void *GetPACMask() { return &m_pac_mask; } 136 137 void *GetMTEControl() { return &m_mte_ctrl_reg; } 138 139 void *GetSVEBuffer(); 140 141 size_t GetSVEHeaderSize() { return sizeof(m_sve_header); } 142 143 size_t GetPACMaskSize() { return sizeof(m_pac_mask); } 144 145 size_t GetSVEBufferSize() { return m_sve_ptrace_payload.size(); } 146 147 size_t GetMTEControlSize() { return sizeof(m_mte_ctrl_reg); } 148 149 llvm::Error ReadHardwareDebugInfo() override; 150 151 llvm::Error WriteHardwareDebugRegs(DREGType hwbType) override; 152 153 uint32_t CalculateFprOffset(const RegisterInfo *reg_info) const; 154 155 RegisterInfoPOSIX_arm64 &GetRegisterInfo() const; 156 157 void ConfigureRegisterContext(); 158 159 uint32_t CalculateSVEOffset(const RegisterInfo *reg_info) const; 160 }; 161 162 } // namespace process_linux 163 } // namespace lldb_private 164 165 #endif // #ifndef lldb_NativeRegisterContextLinux_arm64_h 166 167 #endif // defined (__arm64__) || defined (__aarch64__) 168