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 <cstring> 10 #include <errno.h> 11 #include <stdint.h> 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 if (m_register_info_up->GetRegisterSetFromRegisterIndex(reg) == 44 RegisterInfoPOSIX_arm64::SVERegSet) 45 return true; 46 return false; 47 } 48 RegisterContextPOSIX_arm64(lldb_private::Thread & thread,std::unique_ptr<RegisterInfoPOSIX_arm64> register_info)49RegisterContextPOSIX_arm64::RegisterContextPOSIX_arm64( 50 lldb_private::Thread &thread, 51 std::unique_ptr<RegisterInfoPOSIX_arm64> register_info) 52 : lldb_private::RegisterContext(thread, 0), 53 m_register_info_up(std::move(register_info)) {} 54 ~RegisterContextPOSIX_arm64()55RegisterContextPOSIX_arm64::~RegisterContextPOSIX_arm64() {} 56 Invalidate()57void RegisterContextPOSIX_arm64::Invalidate() {} 58 InvalidateAllRegisters()59void RegisterContextPOSIX_arm64::InvalidateAllRegisters() {} 60 GetRegisterOffset(unsigned reg)61unsigned RegisterContextPOSIX_arm64::GetRegisterOffset(unsigned reg) { 62 return m_register_info_up->GetRegisterInfo()[reg].byte_offset; 63 } 64 GetRegisterSize(unsigned reg)65unsigned RegisterContextPOSIX_arm64::GetRegisterSize(unsigned reg) { 66 return m_register_info_up->GetRegisterInfo()[reg].byte_size; 67 } 68 GetRegisterCount()69size_t RegisterContextPOSIX_arm64::GetRegisterCount() { 70 return m_register_info_up->GetRegisterCount(); 71 } 72 GetGPRSize()73size_t RegisterContextPOSIX_arm64::GetGPRSize() { 74 return m_register_info_up->GetGPRSize(); 75 } 76 77 const lldb_private::RegisterInfo * GetRegisterInfo()78RegisterContextPOSIX_arm64::GetRegisterInfo() { 79 // Commonly, this method is overridden and g_register_infos is copied and 80 // specialized. So, use GetRegisterInfo() rather than g_register_infos in 81 // this scope. 82 return m_register_info_up->GetRegisterInfo(); 83 } 84 85 const lldb_private::RegisterInfo * GetRegisterInfoAtIndex(size_t reg)86RegisterContextPOSIX_arm64::GetRegisterInfoAtIndex(size_t reg) { 87 if (reg < GetRegisterCount()) 88 return &GetRegisterInfo()[reg]; 89 90 return nullptr; 91 } 92 GetRegisterSetCount()93size_t RegisterContextPOSIX_arm64::GetRegisterSetCount() { 94 return m_register_info_up->GetRegisterSetCount(); 95 } 96 97 const lldb_private::RegisterSet * GetRegisterSet(size_t set)98RegisterContextPOSIX_arm64::GetRegisterSet(size_t set) { 99 return m_register_info_up->GetRegisterSet(set); 100 } 101 GetRegisterName(unsigned reg)102const char *RegisterContextPOSIX_arm64::GetRegisterName(unsigned reg) { 103 if (reg < GetRegisterCount()) 104 return GetRegisterInfo()[reg].name; 105 return nullptr; 106 } 107