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 IsPAuth(unsigned reg) const46bool RegisterContextPOSIX_arm64::IsPAuth(unsigned reg) const { 47 return m_register_info_up->IsPAuthReg(reg); 48 } 49 RegisterContextPOSIX_arm64(lldb_private::Thread & thread,std::unique_ptr<RegisterInfoPOSIX_arm64> register_info)50RegisterContextPOSIX_arm64::RegisterContextPOSIX_arm64( 51 lldb_private::Thread &thread, 52 std::unique_ptr<RegisterInfoPOSIX_arm64> register_info) 53 : lldb_private::RegisterContext(thread, 0), 54 m_register_info_up(std::move(register_info)) {} 55 56 RegisterContextPOSIX_arm64::~RegisterContextPOSIX_arm64() = default; 57 Invalidate()58void RegisterContextPOSIX_arm64::Invalidate() {} 59 InvalidateAllRegisters()60void RegisterContextPOSIX_arm64::InvalidateAllRegisters() {} 61 GetRegisterOffset(unsigned reg)62unsigned RegisterContextPOSIX_arm64::GetRegisterOffset(unsigned reg) { 63 return m_register_info_up->GetRegisterInfo()[reg].byte_offset; 64 } 65 GetRegisterSize(unsigned reg)66unsigned RegisterContextPOSIX_arm64::GetRegisterSize(unsigned reg) { 67 return m_register_info_up->GetRegisterInfo()[reg].byte_size; 68 } 69 GetRegisterCount()70size_t RegisterContextPOSIX_arm64::GetRegisterCount() { 71 return m_register_info_up->GetRegisterCount(); 72 } 73 GetGPRSize()74size_t RegisterContextPOSIX_arm64::GetGPRSize() { 75 return m_register_info_up->GetGPRSize(); 76 } 77 78 const lldb_private::RegisterInfo * GetRegisterInfo()79RegisterContextPOSIX_arm64::GetRegisterInfo() { 80 // Commonly, this method is overridden and g_register_infos is copied and 81 // specialized. So, use GetRegisterInfo() rather than g_register_infos in 82 // this scope. 83 return m_register_info_up->GetRegisterInfo(); 84 } 85 86 const lldb_private::RegisterInfo * GetRegisterInfoAtIndex(size_t reg)87RegisterContextPOSIX_arm64::GetRegisterInfoAtIndex(size_t reg) { 88 if (reg < GetRegisterCount()) 89 return &GetRegisterInfo()[reg]; 90 91 return nullptr; 92 } 93 GetRegisterSetCount()94size_t RegisterContextPOSIX_arm64::GetRegisterSetCount() { 95 return m_register_info_up->GetRegisterSetCount(); 96 } 97 98 const lldb_private::RegisterSet * GetRegisterSet(size_t set)99RegisterContextPOSIX_arm64::GetRegisterSet(size_t set) { 100 return m_register_info_up->GetRegisterSet(set); 101 } 102 GetRegisterName(unsigned reg)103const char *RegisterContextPOSIX_arm64::GetRegisterName(unsigned reg) { 104 if (reg < GetRegisterCount()) 105 return GetRegisterInfo()[reg].name; 106 return nullptr; 107 } 108