1 //===-- RegisterContextPOSIX_arm64.cpp ------------------------------------===// 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 #include <cerrno> 10 #include <cstdint> 11 #include <cstring> 12 13 #include "lldb/Target/Process.h" 14 #include "lldb/Target/Target.h" 15 #include "lldb/Target/Thread.h" 16 #include "lldb/Utility/DataBufferHeap.h" 17 #include "lldb/Utility/DataExtractor.h" 18 #include "lldb/Utility/Endian.h" 19 #include "lldb/Utility/RegisterValue.h" 20 #include "lldb/Utility/Scalar.h" 21 #include "llvm/Support/Compiler.h" 22 23 #include "RegisterContextPOSIX_arm64.h" 24 25 using namespace lldb; 26 using namespace lldb_private; 27 IsGPR(unsigned reg)28bool RegisterContextPOSIX_arm64::IsGPR(unsigned reg) { 29 if (m_register_info_up->GetRegisterSetFromRegisterIndex(reg) == 30 RegisterInfoPOSIX_arm64::GPRegSet) 31 return true; 32 return false; 33 } 34 IsFPR(unsigned reg)35bool RegisterContextPOSIX_arm64::IsFPR(unsigned reg) { 36 if (m_register_info_up->GetRegisterSetFromRegisterIndex(reg) == 37 RegisterInfoPOSIX_arm64::FPRegSet) 38 return true; 39 return false; 40 } 41 IsSVE(unsigned reg) const42bool RegisterContextPOSIX_arm64::IsSVE(unsigned reg) const { 43 return m_register_info_up->IsSVEReg(reg); 44 } 45 IsSME(unsigned reg) const46bool RegisterContextPOSIX_arm64::IsSME(unsigned reg) const { 47 return m_register_info_up->IsSMEReg(reg); 48 } 49 IsPAuth(unsigned reg) const50bool RegisterContextPOSIX_arm64::IsPAuth(unsigned reg) const { 51 return m_register_info_up->IsPAuthReg(reg); 52 } 53 IsTLS(unsigned reg) const54bool RegisterContextPOSIX_arm64::IsTLS(unsigned reg) const { 55 return m_register_info_up->IsTLSReg(reg); 56 } 57 IsMTE(unsigned reg) const58bool RegisterContextPOSIX_arm64::IsMTE(unsigned reg) const { 59 return m_register_info_up->IsMTEReg(reg); 60 } 61 RegisterContextPOSIX_arm64(lldb_private::Thread & thread,std::unique_ptr<RegisterInfoPOSIX_arm64> register_info)62RegisterContextPOSIX_arm64::RegisterContextPOSIX_arm64( 63 lldb_private::Thread &thread, 64 std::unique_ptr<RegisterInfoPOSIX_arm64> register_info) 65 : lldb_private::RegisterContext(thread, 0), 66 m_register_info_up(std::move(register_info)) {} 67 68 RegisterContextPOSIX_arm64::~RegisterContextPOSIX_arm64() = default; 69 Invalidate()70void RegisterContextPOSIX_arm64::Invalidate() {} 71 InvalidateAllRegisters()72void RegisterContextPOSIX_arm64::InvalidateAllRegisters() {} 73 GetRegisterOffset(unsigned reg)74unsigned RegisterContextPOSIX_arm64::GetRegisterOffset(unsigned reg) { 75 return m_register_info_up->GetRegisterInfo()[reg].byte_offset; 76 } 77 GetRegisterSize(unsigned reg)78unsigned RegisterContextPOSIX_arm64::GetRegisterSize(unsigned reg) { 79 return m_register_info_up->GetRegisterInfo()[reg].byte_size; 80 } 81 GetRegisterCount()82size_t RegisterContextPOSIX_arm64::GetRegisterCount() { 83 return m_register_info_up->GetRegisterCount(); 84 } 85 GetGPRSize()86size_t RegisterContextPOSIX_arm64::GetGPRSize() { 87 return m_register_info_up->GetGPRSize(); 88 } 89 90 const lldb_private::RegisterInfo * GetRegisterInfo()91RegisterContextPOSIX_arm64::GetRegisterInfo() { 92 // Commonly, this method is overridden and g_register_infos is copied and 93 // specialized. So, use GetRegisterInfo() rather than g_register_infos in 94 // this scope. 95 return m_register_info_up->GetRegisterInfo(); 96 } 97 98 const lldb_private::RegisterInfo * GetRegisterInfoAtIndex(size_t reg)99RegisterContextPOSIX_arm64::GetRegisterInfoAtIndex(size_t reg) { 100 if (reg < GetRegisterCount()) 101 return &GetRegisterInfo()[reg]; 102 103 return nullptr; 104 } 105 GetRegisterSetCount()106size_t RegisterContextPOSIX_arm64::GetRegisterSetCount() { 107 return m_register_info_up->GetRegisterSetCount(); 108 } 109 110 const lldb_private::RegisterSet * GetRegisterSet(size_t set)111RegisterContextPOSIX_arm64::GetRegisterSet(size_t set) { 112 return m_register_info_up->GetRegisterSet(set); 113 } 114 GetRegisterName(unsigned reg)115const char *RegisterContextPOSIX_arm64::GetRegisterName(unsigned reg) { 116 if (reg < GetRegisterCount()) 117 return GetRegisterInfo()[reg].name; 118 return nullptr; 119 } 120