1314564Sdim//===-- RegisterContextHistory.cpp ---------------------------------*- C++ 2314564Sdim//-*-===// 3258882Semaste// 4353358Sdim// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5353358Sdim// See https://llvm.org/LICENSE.txt for license information. 6353358Sdim// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7258882Semaste// 8258882Semaste//===----------------------------------------------------------------------===// 9258882Semaste 10258882Semaste#include "lldb/Core/Address.h" 11258882Semaste#include "lldb/Core/AddressRange.h" 12258882Semaste#include "lldb/Core/Module.h" 13258882Semaste#include "lldb/Core/Value.h" 14258882Semaste#include "lldb/Expression/DWARFExpression.h" 15258882Semaste#include "lldb/Symbol/FuncUnwinders.h" 16258882Semaste#include "lldb/Symbol/Function.h" 17258882Semaste#include "lldb/Symbol/ObjectFile.h" 18314564Sdim#include "lldb/Symbol/Symbol.h" 19258882Semaste#include "lldb/Symbol/SymbolContext.h" 20258882Semaste#include "lldb/Target/ABI.h" 21314564Sdim#include "lldb/Target/DynamicLoader.h" 22258882Semaste#include "lldb/Target/ExecutionContext.h" 23258882Semaste#include "lldb/Target/Process.h" 24258882Semaste#include "lldb/Target/StackFrame.h" 25258882Semaste#include "lldb/Target/Target.h" 26258882Semaste#include "lldb/Target/Thread.h" 27321369Sdim#include "lldb/Utility/DataBufferHeap.h" 28321369Sdim#include "lldb/Utility/Log.h" 29344779Sdim#include "lldb/Utility/RegisterValue.h" 30314564Sdim#include "lldb/lldb-private.h" 31258882Semaste 32258882Semaste#include "RegisterContextHistory.h" 33258882Semaste 34258882Semasteusing namespace lldb; 35258882Semasteusing namespace lldb_private; 36258882Semaste 37314564SdimRegisterContextHistory::RegisterContextHistory(Thread &thread, 38314564Sdim uint32_t concrete_frame_idx, 39314564Sdim uint32_t address_byte_size, 40314564Sdim addr_t pc_value) 41314564Sdim : RegisterContext(thread, concrete_frame_idx), m_pc_value(pc_value) { 42314564Sdim m_reg_set0.name = "General Purpose Registers"; 43314564Sdim m_reg_set0.short_name = "GPR"; 44314564Sdim m_reg_set0.num_registers = 1; 45314564Sdim m_reg_set0.registers = new uint32_t(0); 46314564Sdim 47314564Sdim m_pc_reg_info.name = "pc"; 48314564Sdim m_pc_reg_info.alt_name = "pc"; 49314564Sdim m_pc_reg_info.byte_offset = 0; 50314564Sdim m_pc_reg_info.byte_size = address_byte_size; 51314564Sdim m_pc_reg_info.encoding = eEncodingUint; 52314564Sdim m_pc_reg_info.format = eFormatPointer; 53353358Sdim m_pc_reg_info.invalidate_regs = nullptr; 54353358Sdim m_pc_reg_info.value_regs = nullptr; 55314564Sdim m_pc_reg_info.kinds[eRegisterKindEHFrame] = LLDB_INVALID_REGNUM; 56314564Sdim m_pc_reg_info.kinds[eRegisterKindDWARF] = LLDB_INVALID_REGNUM; 57314564Sdim m_pc_reg_info.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC; 58314564Sdim m_pc_reg_info.kinds[eRegisterKindProcessPlugin] = LLDB_INVALID_REGNUM; 59314564Sdim m_pc_reg_info.kinds[eRegisterKindLLDB] = LLDB_INVALID_REGNUM; 60258882Semaste} 61258882Semaste 62314564SdimRegisterContextHistory::~RegisterContextHistory() { 63314564Sdim delete m_reg_set0.registers; 64314564Sdim delete m_pc_reg_info.invalidate_regs; 65314564Sdim delete m_pc_reg_info.value_regs; 66258882Semaste} 67258882Semaste 68314564Sdimvoid RegisterContextHistory::InvalidateAllRegisters() {} 69258882Semaste 70314564Sdimsize_t RegisterContextHistory::GetRegisterCount() { return 1; } 71258882Semaste 72258882Semasteconst lldb_private::RegisterInfo * 73314564SdimRegisterContextHistory::GetRegisterInfoAtIndex(size_t reg) { 74314564Sdim if (reg) 75353358Sdim return nullptr; 76314564Sdim return &m_pc_reg_info; 77258882Semaste} 78258882Semaste 79314564Sdimsize_t RegisterContextHistory::GetRegisterSetCount() { return 1; } 80258882Semaste 81258882Semasteconst lldb_private::RegisterSet * 82314564SdimRegisterContextHistory::GetRegisterSet(size_t reg_set) { 83314564Sdim if (reg_set) 84353358Sdim return nullptr; 85314564Sdim return &m_reg_set0; 86258882Semaste} 87258882Semaste 88314564Sdimbool RegisterContextHistory::ReadRegister( 89314564Sdim const lldb_private::RegisterInfo *reg_info, 90314564Sdim lldb_private::RegisterValue &value) { 91314564Sdim if (!reg_info) 92258882Semaste return false; 93314564Sdim uint32_t reg_number = reg_info->kinds[eRegisterKindGeneric]; 94314564Sdim if (reg_number == LLDB_REGNUM_GENERIC_PC) { 95314564Sdim value.SetUInt(m_pc_value, reg_info->byte_size); 96314564Sdim return true; 97314564Sdim } 98314564Sdim return false; 99258882Semaste} 100258882Semaste 101314564Sdimbool RegisterContextHistory::WriteRegister( 102314564Sdim const lldb_private::RegisterInfo *reg_info, 103314564Sdim const lldb_private::RegisterValue &value) { 104314564Sdim return false; 105258882Semaste} 106258882Semaste 107314564Sdimbool RegisterContextHistory::ReadAllRegisterValues( 108314564Sdim lldb::DataBufferSP &data_sp) { 109314564Sdim return false; 110258882Semaste} 111258882Semaste 112314564Sdimbool RegisterContextHistory::WriteAllRegisterValues( 113314564Sdim const lldb::DataBufferSP &data_sp) { 114314564Sdim return false; 115258882Semaste} 116258882Semaste 117314564Sdimuint32_t RegisterContextHistory::ConvertRegisterKindToRegisterNumber( 118314564Sdim lldb::RegisterKind kind, uint32_t num) { 119314564Sdim if (kind == eRegisterKindGeneric && num == LLDB_REGNUM_GENERIC_PC) 120314564Sdim return 0; 121314564Sdim return LLDB_INVALID_REGNUM; 122258882Semaste} 123