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 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 RegisterContextPOSIX_arm64::RegisterContextPOSIX_arm64( 43 lldb_private::Thread &thread, 44 std::unique_ptr<RegisterInfoPOSIX_arm64> register_info) 45 : lldb_private::RegisterContext(thread, 0), 46 m_register_info_up(std::move(register_info)) { 47 48 ::memset(&m_fpr, 0, sizeof m_fpr); 49 } 50 51 RegisterContextPOSIX_arm64::~RegisterContextPOSIX_arm64() {} 52 53 void RegisterContextPOSIX_arm64::Invalidate() {} 54 55 void RegisterContextPOSIX_arm64::InvalidateAllRegisters() {} 56 57 unsigned RegisterContextPOSIX_arm64::GetRegisterOffset(unsigned reg) { 58 return m_register_info_up->GetRegisterInfo()[reg].byte_offset; 59 } 60 61 unsigned RegisterContextPOSIX_arm64::GetRegisterSize(unsigned reg) { 62 return m_register_info_up->GetRegisterInfo()[reg].byte_size; 63 } 64 65 size_t RegisterContextPOSIX_arm64::GetRegisterCount() { 66 return m_register_info_up->GetRegisterCount(); 67 } 68 69 size_t RegisterContextPOSIX_arm64::GetGPRSize() { 70 return m_register_info_up->GetGPRSize(); 71 } 72 73 const lldb_private::RegisterInfo * 74 RegisterContextPOSIX_arm64::GetRegisterInfo() { 75 // Commonly, this method is overridden and g_register_infos is copied and 76 // specialized. So, use GetRegisterInfo() rather than g_register_infos in 77 // this scope. 78 return m_register_info_up->GetRegisterInfo(); 79 } 80 81 const lldb_private::RegisterInfo * 82 RegisterContextPOSIX_arm64::GetRegisterInfoAtIndex(size_t reg) { 83 if (reg < GetRegisterCount()) 84 return &GetRegisterInfo()[reg]; 85 else 86 return nullptr; 87 } 88 89 size_t RegisterContextPOSIX_arm64::GetRegisterSetCount() { 90 return m_register_info_up->GetRegisterSetCount(); 91 } 92 93 const lldb_private::RegisterSet * 94 RegisterContextPOSIX_arm64::GetRegisterSet(size_t set) { 95 return m_register_info_up->GetRegisterSet(set); 96 } 97 98 const char *RegisterContextPOSIX_arm64::GetRegisterName(unsigned reg) { 99 if (reg < GetRegisterCount()) 100 return GetRegisterInfo()[reg].name; 101 return nullptr; 102 } 103