1 //===-- RegisterContextPOSIX_arm.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_arm.h" 24 25 using namespace lldb; 26 using namespace lldb_private; 27 28 bool RegisterContextPOSIX_arm::IsGPR(unsigned reg) { 29 if (m_register_info_up->GetRegisterSetFromRegisterIndex(reg) == 30 RegisterInfoPOSIX_arm::GPRegSet) 31 return true; 32 return false; 33 } 34 35 bool RegisterContextPOSIX_arm::IsFPR(unsigned reg) { 36 if (m_register_info_up->GetRegisterSetFromRegisterIndex(reg) == 37 RegisterInfoPOSIX_arm::FPRegSet) 38 return true; 39 return false; 40 } 41 42 RegisterContextPOSIX_arm::RegisterContextPOSIX_arm( 43 lldb_private::Thread &thread, 44 std::unique_ptr<RegisterInfoPOSIX_arm> register_info) 45 : lldb_private::RegisterContext(thread, 0), 46 m_register_info_up(std::move(register_info)) {} 47 48 RegisterContextPOSIX_arm::~RegisterContextPOSIX_arm() {} 49 50 void RegisterContextPOSIX_arm::Invalidate() {} 51 52 void RegisterContextPOSIX_arm::InvalidateAllRegisters() {} 53 54 unsigned RegisterContextPOSIX_arm::GetRegisterOffset(unsigned reg) { 55 return m_register_info_up->GetRegisterInfo()[reg].byte_offset; 56 } 57 58 unsigned RegisterContextPOSIX_arm::GetRegisterSize(unsigned reg) { 59 return m_register_info_up->GetRegisterInfo()[reg].byte_size; 60 } 61 62 size_t RegisterContextPOSIX_arm::GetRegisterCount() { 63 return m_register_info_up->GetRegisterCount(); 64 } 65 66 size_t RegisterContextPOSIX_arm::GetGPRSize() { 67 return m_register_info_up->GetGPRSize(); 68 } 69 70 const lldb_private::RegisterInfo *RegisterContextPOSIX_arm::GetRegisterInfo() { 71 // Commonly, this method is overridden and g_register_infos is copied and 72 // specialized. So, use GetRegisterInfo() rather than g_register_infos in 73 // this scope. 74 return m_register_info_up->GetRegisterInfo(); 75 } 76 77 const lldb_private::RegisterInfo * 78 RegisterContextPOSIX_arm::GetRegisterInfoAtIndex(size_t reg) { 79 if (reg < GetRegisterCount()) 80 return &GetRegisterInfo()[reg]; 81 82 return nullptr; 83 } 84 85 size_t RegisterContextPOSIX_arm::GetRegisterSetCount() { 86 return m_register_info_up->GetRegisterSetCount(); 87 } 88 89 const lldb_private::RegisterSet * 90 RegisterContextPOSIX_arm::GetRegisterSet(size_t set) { 91 return m_register_info_up->GetRegisterSet(set); 92 } 93 94 const char *RegisterContextPOSIX_arm::GetRegisterName(unsigned reg) { 95 if (reg < GetRegisterCount()) 96 return GetRegisterInfo()[reg].name; 97 return nullptr; 98 } 99