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 28 bool 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 35 bool 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 42 bool RegisterContextPOSIX_arm64::IsSVE(unsigned reg) const { 43 return m_register_info_up->IsSVEReg(reg); 44 } 45 46 bool RegisterContextPOSIX_arm64::IsSME(unsigned reg) const { 47 return m_register_info_up->IsSMEReg(reg); 48 } 49 50 bool RegisterContextPOSIX_arm64::IsPAuth(unsigned reg) const { 51 return m_register_info_up->IsPAuthReg(reg); 52 } 53 54 bool RegisterContextPOSIX_arm64::IsTLS(unsigned reg) const { 55 return m_register_info_up->IsTLSReg(reg); 56 } 57 58 bool RegisterContextPOSIX_arm64::IsMTE(unsigned reg) const { 59 return m_register_info_up->IsMTEReg(reg); 60 } 61 62 bool RegisterContextPOSIX_arm64::IsFPMR(unsigned reg) const { 63 return m_register_info_up->IsFPMRReg(reg); 64 } 65 66 bool RegisterContextPOSIX_arm64::IsGCS(unsigned reg) const { 67 return m_register_info_up->IsGCSReg(reg); 68 } 69 70 RegisterContextPOSIX_arm64::RegisterContextPOSIX_arm64( 71 lldb_private::Thread &thread, 72 std::unique_ptr<RegisterInfoPOSIX_arm64> register_info) 73 : lldb_private::RegisterContext(thread, 0), 74 m_register_info_up(std::move(register_info)) {} 75 76 RegisterContextPOSIX_arm64::~RegisterContextPOSIX_arm64() = default; 77 78 void RegisterContextPOSIX_arm64::Invalidate() {} 79 80 void RegisterContextPOSIX_arm64::InvalidateAllRegisters() {} 81 82 unsigned RegisterContextPOSIX_arm64::GetRegisterOffset(unsigned reg) { 83 return m_register_info_up->GetRegisterInfo()[reg].byte_offset; 84 } 85 86 unsigned RegisterContextPOSIX_arm64::GetRegisterSize(unsigned reg) { 87 return m_register_info_up->GetRegisterInfo()[reg].byte_size; 88 } 89 90 size_t RegisterContextPOSIX_arm64::GetRegisterCount() { 91 return m_register_info_up->GetRegisterCount(); 92 } 93 94 size_t RegisterContextPOSIX_arm64::GetGPRSize() { 95 return m_register_info_up->GetGPRSize(); 96 } 97 98 const lldb_private::RegisterInfo * 99 RegisterContextPOSIX_arm64::GetRegisterInfo() { 100 // Commonly, this method is overridden and g_register_infos is copied and 101 // specialized. So, use GetRegisterInfo() rather than g_register_infos in 102 // this scope. 103 return m_register_info_up->GetRegisterInfo(); 104 } 105 106 const lldb_private::RegisterInfo * 107 RegisterContextPOSIX_arm64::GetRegisterInfoAtIndex(size_t reg) { 108 if (reg < GetRegisterCount()) 109 return &GetRegisterInfo()[reg]; 110 111 return nullptr; 112 } 113 114 size_t RegisterContextPOSIX_arm64::GetRegisterSetCount() { 115 return m_register_info_up->GetRegisterSetCount(); 116 } 117 118 const lldb_private::RegisterSet * 119 RegisterContextPOSIX_arm64::GetRegisterSet(size_t set) { 120 return m_register_info_up->GetRegisterSet(set); 121 } 122 123 const char *RegisterContextPOSIX_arm64::GetRegisterName(unsigned reg) { 124 if (reg < GetRegisterCount()) 125 return GetRegisterInfo()[reg].name; 126 return nullptr; 127 } 128