10b57cec5SDimitry Andric //===-- GDBRemoteRegisterContext.cpp ----------------------------*- C++ -*-===// 20b57cec5SDimitry Andric // 30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric // 70b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 80b57cec5SDimitry Andric 90b57cec5SDimitry Andric #include "GDBRemoteRegisterContext.h" 100b57cec5SDimitry Andric 110b57cec5SDimitry Andric #include "lldb/Target/ExecutionContext.h" 120b57cec5SDimitry Andric #include "lldb/Target/Target.h" 130b57cec5SDimitry Andric #include "lldb/Utility/DataBufferHeap.h" 140b57cec5SDimitry Andric #include "lldb/Utility/DataExtractor.h" 150b57cec5SDimitry Andric #include "lldb/Utility/RegisterValue.h" 160b57cec5SDimitry Andric #include "lldb/Utility/Scalar.h" 170b57cec5SDimitry Andric #include "lldb/Utility/StreamString.h" 180b57cec5SDimitry Andric #include "ProcessGDBRemote.h" 190b57cec5SDimitry Andric #include "ProcessGDBRemoteLog.h" 200b57cec5SDimitry Andric #include "ThreadGDBRemote.h" 210b57cec5SDimitry Andric #include "Utility/ARM_DWARF_Registers.h" 220b57cec5SDimitry Andric #include "Utility/ARM_ehframe_Registers.h" 230b57cec5SDimitry Andric #include "lldb/Utility/StringExtractorGDBRemote.h" 240b57cec5SDimitry Andric 250b57cec5SDimitry Andric #include <memory> 260b57cec5SDimitry Andric 270b57cec5SDimitry Andric using namespace lldb; 280b57cec5SDimitry Andric using namespace lldb_private; 290b57cec5SDimitry Andric using namespace lldb_private::process_gdb_remote; 300b57cec5SDimitry Andric 310b57cec5SDimitry Andric // GDBRemoteRegisterContext constructor 320b57cec5SDimitry Andric GDBRemoteRegisterContext::GDBRemoteRegisterContext( 330b57cec5SDimitry Andric ThreadGDBRemote &thread, uint32_t concrete_frame_idx, 340b57cec5SDimitry Andric GDBRemoteDynamicRegisterInfo ®_info, bool read_all_at_once) 350b57cec5SDimitry Andric : RegisterContext(thread, concrete_frame_idx), m_reg_info(reg_info), 360b57cec5SDimitry Andric m_reg_valid(), m_reg_data(), m_read_all_at_once(read_all_at_once) { 370b57cec5SDimitry Andric // Resize our vector of bools to contain one bool for every register. We will 380b57cec5SDimitry Andric // use these boolean values to know when a register value is valid in 390b57cec5SDimitry Andric // m_reg_data. 400b57cec5SDimitry Andric m_reg_valid.resize(reg_info.GetNumRegisters()); 410b57cec5SDimitry Andric 420b57cec5SDimitry Andric // Make a heap based buffer that is big enough to store all registers 430b57cec5SDimitry Andric DataBufferSP reg_data_sp( 440b57cec5SDimitry Andric new DataBufferHeap(reg_info.GetRegisterDataByteSize(), 0)); 450b57cec5SDimitry Andric m_reg_data.SetData(reg_data_sp); 460b57cec5SDimitry Andric m_reg_data.SetByteOrder(thread.GetProcess()->GetByteOrder()); 470b57cec5SDimitry Andric } 480b57cec5SDimitry Andric 490b57cec5SDimitry Andric // Destructor 500b57cec5SDimitry Andric GDBRemoteRegisterContext::~GDBRemoteRegisterContext() {} 510b57cec5SDimitry Andric 520b57cec5SDimitry Andric void GDBRemoteRegisterContext::InvalidateAllRegisters() { 530b57cec5SDimitry Andric SetAllRegisterValid(false); 540b57cec5SDimitry Andric } 550b57cec5SDimitry Andric 560b57cec5SDimitry Andric void GDBRemoteRegisterContext::SetAllRegisterValid(bool b) { 570b57cec5SDimitry Andric std::vector<bool>::iterator pos, end = m_reg_valid.end(); 580b57cec5SDimitry Andric for (pos = m_reg_valid.begin(); pos != end; ++pos) 590b57cec5SDimitry Andric *pos = b; 600b57cec5SDimitry Andric } 610b57cec5SDimitry Andric 620b57cec5SDimitry Andric size_t GDBRemoteRegisterContext::GetRegisterCount() { 630b57cec5SDimitry Andric return m_reg_info.GetNumRegisters(); 640b57cec5SDimitry Andric } 650b57cec5SDimitry Andric 660b57cec5SDimitry Andric const RegisterInfo * 670b57cec5SDimitry Andric GDBRemoteRegisterContext::GetRegisterInfoAtIndex(size_t reg) { 680b57cec5SDimitry Andric RegisterInfo *reg_info = m_reg_info.GetRegisterInfoAtIndex(reg); 690b57cec5SDimitry Andric 700b57cec5SDimitry Andric if (reg_info && reg_info->dynamic_size_dwarf_expr_bytes) { 710b57cec5SDimitry Andric const ArchSpec &arch = m_thread.GetProcess()->GetTarget().GetArchitecture(); 720b57cec5SDimitry Andric uint8_t reg_size = UpdateDynamicRegisterSize(arch, reg_info); 730b57cec5SDimitry Andric reg_info->byte_size = reg_size; 740b57cec5SDimitry Andric } 750b57cec5SDimitry Andric return reg_info; 760b57cec5SDimitry Andric } 770b57cec5SDimitry Andric 780b57cec5SDimitry Andric size_t GDBRemoteRegisterContext::GetRegisterSetCount() { 790b57cec5SDimitry Andric return m_reg_info.GetNumRegisterSets(); 800b57cec5SDimitry Andric } 810b57cec5SDimitry Andric 820b57cec5SDimitry Andric const RegisterSet *GDBRemoteRegisterContext::GetRegisterSet(size_t reg_set) { 830b57cec5SDimitry Andric return m_reg_info.GetRegisterSet(reg_set); 840b57cec5SDimitry Andric } 850b57cec5SDimitry Andric 860b57cec5SDimitry Andric bool GDBRemoteRegisterContext::ReadRegister(const RegisterInfo *reg_info, 870b57cec5SDimitry Andric RegisterValue &value) { 880b57cec5SDimitry Andric // Read the register 890b57cec5SDimitry Andric if (ReadRegisterBytes(reg_info, m_reg_data)) { 900b57cec5SDimitry Andric const bool partial_data_ok = false; 910b57cec5SDimitry Andric Status error(value.SetValueFromData( 920b57cec5SDimitry Andric reg_info, m_reg_data, reg_info->byte_offset, partial_data_ok)); 930b57cec5SDimitry Andric return error.Success(); 940b57cec5SDimitry Andric } 950b57cec5SDimitry Andric return false; 960b57cec5SDimitry Andric } 970b57cec5SDimitry Andric 980b57cec5SDimitry Andric bool GDBRemoteRegisterContext::PrivateSetRegisterValue( 990b57cec5SDimitry Andric uint32_t reg, llvm::ArrayRef<uint8_t> data) { 1000b57cec5SDimitry Andric const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg); 1010b57cec5SDimitry Andric if (reg_info == nullptr) 1020b57cec5SDimitry Andric return false; 1030b57cec5SDimitry Andric 1040b57cec5SDimitry Andric // Invalidate if needed 1050b57cec5SDimitry Andric InvalidateIfNeeded(false); 1060b57cec5SDimitry Andric 1070b57cec5SDimitry Andric const size_t reg_byte_size = reg_info->byte_size; 1080b57cec5SDimitry Andric memcpy(const_cast<uint8_t *>( 1090b57cec5SDimitry Andric m_reg_data.PeekData(reg_info->byte_offset, reg_byte_size)), 1100b57cec5SDimitry Andric data.data(), std::min(data.size(), reg_byte_size)); 1110b57cec5SDimitry Andric bool success = data.size() >= reg_byte_size; 1120b57cec5SDimitry Andric if (success) { 1130b57cec5SDimitry Andric SetRegisterIsValid(reg, true); 1140b57cec5SDimitry Andric } else if (data.size() > 0) { 1150b57cec5SDimitry Andric // Only set register is valid to false if we copied some bytes, else leave 1160b57cec5SDimitry Andric // it as it was. 1170b57cec5SDimitry Andric SetRegisterIsValid(reg, false); 1180b57cec5SDimitry Andric } 1190b57cec5SDimitry Andric return success; 1200b57cec5SDimitry Andric } 1210b57cec5SDimitry Andric 1220b57cec5SDimitry Andric bool GDBRemoteRegisterContext::PrivateSetRegisterValue(uint32_t reg, 1230b57cec5SDimitry Andric uint64_t new_reg_val) { 1240b57cec5SDimitry Andric const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg); 1250b57cec5SDimitry Andric if (reg_info == nullptr) 1260b57cec5SDimitry Andric return false; 1270b57cec5SDimitry Andric 1280b57cec5SDimitry Andric // Early in process startup, we can get a thread that has an invalid byte 1290b57cec5SDimitry Andric // order because the process hasn't been completely set up yet (see the ctor 1300b57cec5SDimitry Andric // where the byte order is setfrom the process). If that's the case, we 1310b57cec5SDimitry Andric // can't set the value here. 1320b57cec5SDimitry Andric if (m_reg_data.GetByteOrder() == eByteOrderInvalid) { 1330b57cec5SDimitry Andric return false; 1340b57cec5SDimitry Andric } 1350b57cec5SDimitry Andric 1360b57cec5SDimitry Andric // Invalidate if needed 1370b57cec5SDimitry Andric InvalidateIfNeeded(false); 1380b57cec5SDimitry Andric 1390b57cec5SDimitry Andric DataBufferSP buffer_sp(new DataBufferHeap(&new_reg_val, sizeof(new_reg_val))); 1400b57cec5SDimitry Andric DataExtractor data(buffer_sp, endian::InlHostByteOrder(), sizeof(void *)); 1410b57cec5SDimitry Andric 1420b57cec5SDimitry Andric // If our register context and our register info disagree, which should never 1430b57cec5SDimitry Andric // happen, don't overwrite past the end of the buffer. 1440b57cec5SDimitry Andric if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 1450b57cec5SDimitry Andric return false; 1460b57cec5SDimitry Andric 1470b57cec5SDimitry Andric // Grab a pointer to where we are going to put this register 1480b57cec5SDimitry Andric uint8_t *dst = const_cast<uint8_t *>( 1490b57cec5SDimitry Andric m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size)); 1500b57cec5SDimitry Andric 1510b57cec5SDimitry Andric if (dst == nullptr) 1520b57cec5SDimitry Andric return false; 1530b57cec5SDimitry Andric 1540b57cec5SDimitry Andric if (data.CopyByteOrderedData(0, // src offset 1550b57cec5SDimitry Andric reg_info->byte_size, // src length 1560b57cec5SDimitry Andric dst, // dst 1570b57cec5SDimitry Andric reg_info->byte_size, // dst length 1580b57cec5SDimitry Andric m_reg_data.GetByteOrder())) // dst byte order 1590b57cec5SDimitry Andric { 1600b57cec5SDimitry Andric SetRegisterIsValid(reg, true); 1610b57cec5SDimitry Andric return true; 1620b57cec5SDimitry Andric } 1630b57cec5SDimitry Andric return false; 1640b57cec5SDimitry Andric } 1650b57cec5SDimitry Andric 1660b57cec5SDimitry Andric // Helper function for GDBRemoteRegisterContext::ReadRegisterBytes(). 1670b57cec5SDimitry Andric bool GDBRemoteRegisterContext::GetPrimordialRegister( 1680b57cec5SDimitry Andric const RegisterInfo *reg_info, GDBRemoteCommunicationClient &gdb_comm) { 1690b57cec5SDimitry Andric const uint32_t lldb_reg = reg_info->kinds[eRegisterKindLLDB]; 1700b57cec5SDimitry Andric const uint32_t remote_reg = reg_info->kinds[eRegisterKindProcessPlugin]; 1710b57cec5SDimitry Andric 1720b57cec5SDimitry Andric if (DataBufferSP buffer_sp = 1730b57cec5SDimitry Andric gdb_comm.ReadRegister(m_thread.GetProtocolID(), remote_reg)) 1740b57cec5SDimitry Andric return PrivateSetRegisterValue( 1750b57cec5SDimitry Andric lldb_reg, llvm::ArrayRef<uint8_t>(buffer_sp->GetBytes(), 1760b57cec5SDimitry Andric buffer_sp->GetByteSize())); 1770b57cec5SDimitry Andric return false; 1780b57cec5SDimitry Andric } 1790b57cec5SDimitry Andric 1800b57cec5SDimitry Andric bool GDBRemoteRegisterContext::ReadRegisterBytes(const RegisterInfo *reg_info, 1810b57cec5SDimitry Andric DataExtractor &data) { 1820b57cec5SDimitry Andric ExecutionContext exe_ctx(CalculateThread()); 1830b57cec5SDimitry Andric 1840b57cec5SDimitry Andric Process *process = exe_ctx.GetProcessPtr(); 1850b57cec5SDimitry Andric Thread *thread = exe_ctx.GetThreadPtr(); 1860b57cec5SDimitry Andric if (process == nullptr || thread == nullptr) 1870b57cec5SDimitry Andric return false; 1880b57cec5SDimitry Andric 1890b57cec5SDimitry Andric GDBRemoteCommunicationClient &gdb_comm( 1900b57cec5SDimitry Andric ((ProcessGDBRemote *)process)->GetGDBRemote()); 1910b57cec5SDimitry Andric 1920b57cec5SDimitry Andric InvalidateIfNeeded(false); 1930b57cec5SDimitry Andric 1940b57cec5SDimitry Andric const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 1950b57cec5SDimitry Andric 1960b57cec5SDimitry Andric if (!GetRegisterIsValid(reg)) { 1970b57cec5SDimitry Andric if (m_read_all_at_once) { 1980b57cec5SDimitry Andric if (DataBufferSP buffer_sp = 1990b57cec5SDimitry Andric gdb_comm.ReadAllRegisters(m_thread.GetProtocolID())) { 2000b57cec5SDimitry Andric memcpy(const_cast<uint8_t *>(m_reg_data.GetDataStart()), 2010b57cec5SDimitry Andric buffer_sp->GetBytes(), 2020b57cec5SDimitry Andric std::min(buffer_sp->GetByteSize(), m_reg_data.GetByteSize())); 2030b57cec5SDimitry Andric if (buffer_sp->GetByteSize() >= m_reg_data.GetByteSize()) { 2040b57cec5SDimitry Andric SetAllRegisterValid(true); 2050b57cec5SDimitry Andric return true; 2060b57cec5SDimitry Andric } else { 2070b57cec5SDimitry Andric Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 2080b57cec5SDimitry Andric GDBR_LOG_PACKETS)); 209*9dba64beSDimitry Andric LLDB_LOGF( 210*9dba64beSDimitry Andric log, 211*9dba64beSDimitry Andric "error: GDBRemoteRegisterContext::ReadRegisterBytes tried " 212*9dba64beSDimitry Andric "to read the " 213*9dba64beSDimitry Andric "entire register context at once, expected at least %" PRId64 214*9dba64beSDimitry Andric " bytes " 215*9dba64beSDimitry Andric "but only got %" PRId64 " bytes.", 216*9dba64beSDimitry Andric m_reg_data.GetByteSize(), buffer_sp->GetByteSize()); 2170b57cec5SDimitry Andric } 2180b57cec5SDimitry Andric } 2190b57cec5SDimitry Andric return false; 2200b57cec5SDimitry Andric } 2210b57cec5SDimitry Andric if (reg_info->value_regs) { 2220b57cec5SDimitry Andric // Process this composite register request by delegating to the 2230b57cec5SDimitry Andric // constituent primordial registers. 2240b57cec5SDimitry Andric 2250b57cec5SDimitry Andric // Index of the primordial register. 2260b57cec5SDimitry Andric bool success = true; 2270b57cec5SDimitry Andric for (uint32_t idx = 0; success; ++idx) { 2280b57cec5SDimitry Andric const uint32_t prim_reg = reg_info->value_regs[idx]; 2290b57cec5SDimitry Andric if (prim_reg == LLDB_INVALID_REGNUM) 2300b57cec5SDimitry Andric break; 2310b57cec5SDimitry Andric // We have a valid primordial register as our constituent. Grab the 2320b57cec5SDimitry Andric // corresponding register info. 2330b57cec5SDimitry Andric const RegisterInfo *prim_reg_info = GetRegisterInfoAtIndex(prim_reg); 2340b57cec5SDimitry Andric if (prim_reg_info == nullptr) 2350b57cec5SDimitry Andric success = false; 2360b57cec5SDimitry Andric else { 2370b57cec5SDimitry Andric // Read the containing register if it hasn't already been read 2380b57cec5SDimitry Andric if (!GetRegisterIsValid(prim_reg)) 2390b57cec5SDimitry Andric success = GetPrimordialRegister(prim_reg_info, gdb_comm); 2400b57cec5SDimitry Andric } 2410b57cec5SDimitry Andric } 2420b57cec5SDimitry Andric 2430b57cec5SDimitry Andric if (success) { 2440b57cec5SDimitry Andric // If we reach this point, all primordial register requests have 2450b57cec5SDimitry Andric // succeeded. Validate this composite register. 2460b57cec5SDimitry Andric SetRegisterIsValid(reg_info, true); 2470b57cec5SDimitry Andric } 2480b57cec5SDimitry Andric } else { 2490b57cec5SDimitry Andric // Get each register individually 2500b57cec5SDimitry Andric GetPrimordialRegister(reg_info, gdb_comm); 2510b57cec5SDimitry Andric } 2520b57cec5SDimitry Andric 2530b57cec5SDimitry Andric // Make sure we got a valid register value after reading it 2540b57cec5SDimitry Andric if (!GetRegisterIsValid(reg)) 2550b57cec5SDimitry Andric return false; 2560b57cec5SDimitry Andric } 2570b57cec5SDimitry Andric 2580b57cec5SDimitry Andric if (&data != &m_reg_data) { 2590b57cec5SDimitry Andric assert(m_reg_data.GetByteSize() >= 2600b57cec5SDimitry Andric reg_info->byte_offset + reg_info->byte_size); 2610b57cec5SDimitry Andric // If our register context and our register info disagree, which should 2620b57cec5SDimitry Andric // never happen, don't read past the end of the buffer. 2630b57cec5SDimitry Andric if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 2640b57cec5SDimitry Andric return false; 2650b57cec5SDimitry Andric 2660b57cec5SDimitry Andric // If we aren't extracting into our own buffer (which only happens when 2670b57cec5SDimitry Andric // this function is called from ReadRegisterValue(uint32_t, Scalar&)) then 2680b57cec5SDimitry Andric // we transfer bytes from our buffer into the data buffer that was passed 2690b57cec5SDimitry Andric // in 2700b57cec5SDimitry Andric 2710b57cec5SDimitry Andric data.SetByteOrder(m_reg_data.GetByteOrder()); 2720b57cec5SDimitry Andric data.SetData(m_reg_data, reg_info->byte_offset, reg_info->byte_size); 2730b57cec5SDimitry Andric } 2740b57cec5SDimitry Andric return true; 2750b57cec5SDimitry Andric } 2760b57cec5SDimitry Andric 2770b57cec5SDimitry Andric bool GDBRemoteRegisterContext::WriteRegister(const RegisterInfo *reg_info, 2780b57cec5SDimitry Andric const RegisterValue &value) { 2790b57cec5SDimitry Andric DataExtractor data; 2800b57cec5SDimitry Andric if (value.GetData(data)) 2810b57cec5SDimitry Andric return WriteRegisterBytes(reg_info, data, 0); 2820b57cec5SDimitry Andric return false; 2830b57cec5SDimitry Andric } 2840b57cec5SDimitry Andric 2850b57cec5SDimitry Andric // Helper function for GDBRemoteRegisterContext::WriteRegisterBytes(). 2860b57cec5SDimitry Andric bool GDBRemoteRegisterContext::SetPrimordialRegister( 2870b57cec5SDimitry Andric const RegisterInfo *reg_info, GDBRemoteCommunicationClient &gdb_comm) { 2880b57cec5SDimitry Andric StreamString packet; 2890b57cec5SDimitry Andric StringExtractorGDBRemote response; 2900b57cec5SDimitry Andric const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 2910b57cec5SDimitry Andric // Invalidate just this register 2920b57cec5SDimitry Andric SetRegisterIsValid(reg, false); 2930b57cec5SDimitry Andric 2940b57cec5SDimitry Andric return gdb_comm.WriteRegister( 2950b57cec5SDimitry Andric m_thread.GetProtocolID(), reg_info->kinds[eRegisterKindProcessPlugin], 2960b57cec5SDimitry Andric {m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size), 2970b57cec5SDimitry Andric reg_info->byte_size}); 2980b57cec5SDimitry Andric } 2990b57cec5SDimitry Andric 3000b57cec5SDimitry Andric bool GDBRemoteRegisterContext::WriteRegisterBytes(const RegisterInfo *reg_info, 3010b57cec5SDimitry Andric DataExtractor &data, 3020b57cec5SDimitry Andric uint32_t data_offset) { 3030b57cec5SDimitry Andric ExecutionContext exe_ctx(CalculateThread()); 3040b57cec5SDimitry Andric 3050b57cec5SDimitry Andric Process *process = exe_ctx.GetProcessPtr(); 3060b57cec5SDimitry Andric Thread *thread = exe_ctx.GetThreadPtr(); 3070b57cec5SDimitry Andric if (process == nullptr || thread == nullptr) 3080b57cec5SDimitry Andric return false; 3090b57cec5SDimitry Andric 3100b57cec5SDimitry Andric GDBRemoteCommunicationClient &gdb_comm( 3110b57cec5SDimitry Andric ((ProcessGDBRemote *)process)->GetGDBRemote()); 3120b57cec5SDimitry Andric 3130b57cec5SDimitry Andric assert(m_reg_data.GetByteSize() >= 3140b57cec5SDimitry Andric reg_info->byte_offset + reg_info->byte_size); 3150b57cec5SDimitry Andric 3160b57cec5SDimitry Andric // If our register context and our register info disagree, which should never 3170b57cec5SDimitry Andric // happen, don't overwrite past the end of the buffer. 3180b57cec5SDimitry Andric if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 3190b57cec5SDimitry Andric return false; 3200b57cec5SDimitry Andric 3210b57cec5SDimitry Andric // Grab a pointer to where we are going to put this register 3220b57cec5SDimitry Andric uint8_t *dst = const_cast<uint8_t *>( 3230b57cec5SDimitry Andric m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size)); 3240b57cec5SDimitry Andric 3250b57cec5SDimitry Andric if (dst == nullptr) 3260b57cec5SDimitry Andric return false; 3270b57cec5SDimitry Andric 3280b57cec5SDimitry Andric if (data.CopyByteOrderedData(data_offset, // src offset 3290b57cec5SDimitry Andric reg_info->byte_size, // src length 3300b57cec5SDimitry Andric dst, // dst 3310b57cec5SDimitry Andric reg_info->byte_size, // dst length 3320b57cec5SDimitry Andric m_reg_data.GetByteOrder())) // dst byte order 3330b57cec5SDimitry Andric { 3340b57cec5SDimitry Andric GDBRemoteClientBase::Lock lock(gdb_comm, false); 3350b57cec5SDimitry Andric if (lock) { 3360b57cec5SDimitry Andric if (m_read_all_at_once) { 3370b57cec5SDimitry Andric // Invalidate all register values 3380b57cec5SDimitry Andric InvalidateIfNeeded(true); 3390b57cec5SDimitry Andric 3400b57cec5SDimitry Andric // Set all registers in one packet 3410b57cec5SDimitry Andric if (gdb_comm.WriteAllRegisters( 3420b57cec5SDimitry Andric m_thread.GetProtocolID(), 3430b57cec5SDimitry Andric {m_reg_data.GetDataStart(), size_t(m_reg_data.GetByteSize())})) 3440b57cec5SDimitry Andric 3450b57cec5SDimitry Andric { 3460b57cec5SDimitry Andric SetAllRegisterValid(false); 3470b57cec5SDimitry Andric return true; 3480b57cec5SDimitry Andric } 3490b57cec5SDimitry Andric } else { 3500b57cec5SDimitry Andric bool success = true; 3510b57cec5SDimitry Andric 3520b57cec5SDimitry Andric if (reg_info->value_regs) { 3530b57cec5SDimitry Andric // This register is part of another register. In this case we read 3540b57cec5SDimitry Andric // the actual register data for any "value_regs", and once all that 3550b57cec5SDimitry Andric // data is read, we will have enough data in our register context 3560b57cec5SDimitry Andric // bytes for the value of this register 3570b57cec5SDimitry Andric 3580b57cec5SDimitry Andric // Invalidate this composite register first. 3590b57cec5SDimitry Andric 3600b57cec5SDimitry Andric for (uint32_t idx = 0; success; ++idx) { 3610b57cec5SDimitry Andric const uint32_t reg = reg_info->value_regs[idx]; 3620b57cec5SDimitry Andric if (reg == LLDB_INVALID_REGNUM) 3630b57cec5SDimitry Andric break; 3640b57cec5SDimitry Andric // We have a valid primordial register as our constituent. Grab the 3650b57cec5SDimitry Andric // corresponding register info. 3660b57cec5SDimitry Andric const RegisterInfo *value_reg_info = GetRegisterInfoAtIndex(reg); 3670b57cec5SDimitry Andric if (value_reg_info == nullptr) 3680b57cec5SDimitry Andric success = false; 3690b57cec5SDimitry Andric else 3700b57cec5SDimitry Andric success = SetPrimordialRegister(value_reg_info, gdb_comm); 3710b57cec5SDimitry Andric } 3720b57cec5SDimitry Andric } else { 3730b57cec5SDimitry Andric // This is an actual register, write it 3740b57cec5SDimitry Andric success = SetPrimordialRegister(reg_info, gdb_comm); 3750b57cec5SDimitry Andric } 3760b57cec5SDimitry Andric 3770b57cec5SDimitry Andric // Check if writing this register will invalidate any other register 3780b57cec5SDimitry Andric // values? If so, invalidate them 3790b57cec5SDimitry Andric if (reg_info->invalidate_regs) { 3800b57cec5SDimitry Andric for (uint32_t idx = 0, reg = reg_info->invalidate_regs[0]; 3810b57cec5SDimitry Andric reg != LLDB_INVALID_REGNUM; 3820b57cec5SDimitry Andric reg = reg_info->invalidate_regs[++idx]) { 3830b57cec5SDimitry Andric SetRegisterIsValid(reg, false); 3840b57cec5SDimitry Andric } 3850b57cec5SDimitry Andric } 3860b57cec5SDimitry Andric 3870b57cec5SDimitry Andric return success; 3880b57cec5SDimitry Andric } 3890b57cec5SDimitry Andric } else { 3900b57cec5SDimitry Andric Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 3910b57cec5SDimitry Andric GDBR_LOG_PACKETS)); 3920b57cec5SDimitry Andric if (log) { 3930b57cec5SDimitry Andric if (log->GetVerbose()) { 3940b57cec5SDimitry Andric StreamString strm; 3950b57cec5SDimitry Andric gdb_comm.DumpHistory(strm); 396*9dba64beSDimitry Andric LLDB_LOGF(log, 397*9dba64beSDimitry Andric "error: failed to get packet sequence mutex, not sending " 3980b57cec5SDimitry Andric "write register for \"%s\":\n%s", 3990b57cec5SDimitry Andric reg_info->name, strm.GetData()); 4000b57cec5SDimitry Andric } else 401*9dba64beSDimitry Andric LLDB_LOGF(log, 402*9dba64beSDimitry Andric "error: failed to get packet sequence mutex, not sending " 4030b57cec5SDimitry Andric "write register for \"%s\"", 4040b57cec5SDimitry Andric reg_info->name); 4050b57cec5SDimitry Andric } 4060b57cec5SDimitry Andric } 4070b57cec5SDimitry Andric } 4080b57cec5SDimitry Andric return false; 4090b57cec5SDimitry Andric } 4100b57cec5SDimitry Andric 4110b57cec5SDimitry Andric bool GDBRemoteRegisterContext::ReadAllRegisterValues( 4120b57cec5SDimitry Andric RegisterCheckpoint ®_checkpoint) { 4130b57cec5SDimitry Andric ExecutionContext exe_ctx(CalculateThread()); 4140b57cec5SDimitry Andric 4150b57cec5SDimitry Andric Process *process = exe_ctx.GetProcessPtr(); 4160b57cec5SDimitry Andric Thread *thread = exe_ctx.GetThreadPtr(); 4170b57cec5SDimitry Andric if (process == nullptr || thread == nullptr) 4180b57cec5SDimitry Andric return false; 4190b57cec5SDimitry Andric 4200b57cec5SDimitry Andric GDBRemoteCommunicationClient &gdb_comm( 4210b57cec5SDimitry Andric ((ProcessGDBRemote *)process)->GetGDBRemote()); 4220b57cec5SDimitry Andric 4230b57cec5SDimitry Andric uint32_t save_id = 0; 4240b57cec5SDimitry Andric if (gdb_comm.SaveRegisterState(thread->GetProtocolID(), save_id)) { 4250b57cec5SDimitry Andric reg_checkpoint.SetID(save_id); 4260b57cec5SDimitry Andric reg_checkpoint.GetData().reset(); 4270b57cec5SDimitry Andric return true; 4280b57cec5SDimitry Andric } else { 4290b57cec5SDimitry Andric reg_checkpoint.SetID(0); // Invalid save ID is zero 4300b57cec5SDimitry Andric return ReadAllRegisterValues(reg_checkpoint.GetData()); 4310b57cec5SDimitry Andric } 4320b57cec5SDimitry Andric } 4330b57cec5SDimitry Andric 4340b57cec5SDimitry Andric bool GDBRemoteRegisterContext::WriteAllRegisterValues( 4350b57cec5SDimitry Andric const RegisterCheckpoint ®_checkpoint) { 4360b57cec5SDimitry Andric uint32_t save_id = reg_checkpoint.GetID(); 4370b57cec5SDimitry Andric if (save_id != 0) { 4380b57cec5SDimitry Andric ExecutionContext exe_ctx(CalculateThread()); 4390b57cec5SDimitry Andric 4400b57cec5SDimitry Andric Process *process = exe_ctx.GetProcessPtr(); 4410b57cec5SDimitry Andric Thread *thread = exe_ctx.GetThreadPtr(); 4420b57cec5SDimitry Andric if (process == nullptr || thread == nullptr) 4430b57cec5SDimitry Andric return false; 4440b57cec5SDimitry Andric 4450b57cec5SDimitry Andric GDBRemoteCommunicationClient &gdb_comm( 4460b57cec5SDimitry Andric ((ProcessGDBRemote *)process)->GetGDBRemote()); 4470b57cec5SDimitry Andric 4480b57cec5SDimitry Andric return gdb_comm.RestoreRegisterState(m_thread.GetProtocolID(), save_id); 4490b57cec5SDimitry Andric } else { 4500b57cec5SDimitry Andric return WriteAllRegisterValues(reg_checkpoint.GetData()); 4510b57cec5SDimitry Andric } 4520b57cec5SDimitry Andric } 4530b57cec5SDimitry Andric 4540b57cec5SDimitry Andric bool GDBRemoteRegisterContext::ReadAllRegisterValues( 4550b57cec5SDimitry Andric lldb::DataBufferSP &data_sp) { 4560b57cec5SDimitry Andric ExecutionContext exe_ctx(CalculateThread()); 4570b57cec5SDimitry Andric 4580b57cec5SDimitry Andric Process *process = exe_ctx.GetProcessPtr(); 4590b57cec5SDimitry Andric Thread *thread = exe_ctx.GetThreadPtr(); 4600b57cec5SDimitry Andric if (process == nullptr || thread == nullptr) 4610b57cec5SDimitry Andric return false; 4620b57cec5SDimitry Andric 4630b57cec5SDimitry Andric GDBRemoteCommunicationClient &gdb_comm( 4640b57cec5SDimitry Andric ((ProcessGDBRemote *)process)->GetGDBRemote()); 4650b57cec5SDimitry Andric 4660b57cec5SDimitry Andric const bool use_g_packet = 4670b57cec5SDimitry Andric !gdb_comm.AvoidGPackets((ProcessGDBRemote *)process); 4680b57cec5SDimitry Andric 4690b57cec5SDimitry Andric GDBRemoteClientBase::Lock lock(gdb_comm, false); 4700b57cec5SDimitry Andric if (lock) { 4710b57cec5SDimitry Andric if (gdb_comm.SyncThreadState(m_thread.GetProtocolID())) 4720b57cec5SDimitry Andric InvalidateAllRegisters(); 4730b57cec5SDimitry Andric 4740b57cec5SDimitry Andric if (use_g_packet && 4750b57cec5SDimitry Andric (data_sp = gdb_comm.ReadAllRegisters(m_thread.GetProtocolID()))) 4760b57cec5SDimitry Andric return true; 4770b57cec5SDimitry Andric 4780b57cec5SDimitry Andric // We're going to read each register 4790b57cec5SDimitry Andric // individually and store them as binary data in a buffer. 4800b57cec5SDimitry Andric const RegisterInfo *reg_info; 4810b57cec5SDimitry Andric 4820b57cec5SDimitry Andric for (uint32_t i = 0; (reg_info = GetRegisterInfoAtIndex(i)) != nullptr; 4830b57cec5SDimitry Andric i++) { 4840b57cec5SDimitry Andric if (reg_info 4850b57cec5SDimitry Andric ->value_regs) // skip registers that are slices of real registers 4860b57cec5SDimitry Andric continue; 4870b57cec5SDimitry Andric ReadRegisterBytes(reg_info, m_reg_data); 4880b57cec5SDimitry Andric // ReadRegisterBytes saves the contents of the register in to the 4890b57cec5SDimitry Andric // m_reg_data buffer 4900b57cec5SDimitry Andric } 4910b57cec5SDimitry Andric data_sp = std::make_shared<DataBufferHeap>( 4920b57cec5SDimitry Andric m_reg_data.GetDataStart(), m_reg_info.GetRegisterDataByteSize()); 4930b57cec5SDimitry Andric return true; 4940b57cec5SDimitry Andric } else { 4950b57cec5SDimitry Andric 4960b57cec5SDimitry Andric Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 4970b57cec5SDimitry Andric GDBR_LOG_PACKETS)); 4980b57cec5SDimitry Andric if (log) { 4990b57cec5SDimitry Andric if (log->GetVerbose()) { 5000b57cec5SDimitry Andric StreamString strm; 5010b57cec5SDimitry Andric gdb_comm.DumpHistory(strm); 502*9dba64beSDimitry Andric LLDB_LOGF(log, 503*9dba64beSDimitry Andric "error: failed to get packet sequence mutex, not sending " 5040b57cec5SDimitry Andric "read all registers:\n%s", 5050b57cec5SDimitry Andric strm.GetData()); 5060b57cec5SDimitry Andric } else 507*9dba64beSDimitry Andric LLDB_LOGF(log, 508*9dba64beSDimitry Andric "error: failed to get packet sequence mutex, not sending " 5090b57cec5SDimitry Andric "read all registers"); 5100b57cec5SDimitry Andric } 5110b57cec5SDimitry Andric } 5120b57cec5SDimitry Andric 5130b57cec5SDimitry Andric data_sp.reset(); 5140b57cec5SDimitry Andric return false; 5150b57cec5SDimitry Andric } 5160b57cec5SDimitry Andric 5170b57cec5SDimitry Andric bool GDBRemoteRegisterContext::WriteAllRegisterValues( 5180b57cec5SDimitry Andric const lldb::DataBufferSP &data_sp) { 5190b57cec5SDimitry Andric if (!data_sp || data_sp->GetBytes() == nullptr || data_sp->GetByteSize() == 0) 5200b57cec5SDimitry Andric return false; 5210b57cec5SDimitry Andric 5220b57cec5SDimitry Andric ExecutionContext exe_ctx(CalculateThread()); 5230b57cec5SDimitry Andric 5240b57cec5SDimitry Andric Process *process = exe_ctx.GetProcessPtr(); 5250b57cec5SDimitry Andric Thread *thread = exe_ctx.GetThreadPtr(); 5260b57cec5SDimitry Andric if (process == nullptr || thread == nullptr) 5270b57cec5SDimitry Andric return false; 5280b57cec5SDimitry Andric 5290b57cec5SDimitry Andric GDBRemoteCommunicationClient &gdb_comm( 5300b57cec5SDimitry Andric ((ProcessGDBRemote *)process)->GetGDBRemote()); 5310b57cec5SDimitry Andric 5320b57cec5SDimitry Andric const bool use_g_packet = 5330b57cec5SDimitry Andric !gdb_comm.AvoidGPackets((ProcessGDBRemote *)process); 5340b57cec5SDimitry Andric 5350b57cec5SDimitry Andric GDBRemoteClientBase::Lock lock(gdb_comm, false); 5360b57cec5SDimitry Andric if (lock) { 5370b57cec5SDimitry Andric // The data_sp contains the G response packet. 5380b57cec5SDimitry Andric if (use_g_packet) { 5390b57cec5SDimitry Andric if (gdb_comm.WriteAllRegisters( 5400b57cec5SDimitry Andric m_thread.GetProtocolID(), 5410b57cec5SDimitry Andric {data_sp->GetBytes(), size_t(data_sp->GetByteSize())})) 5420b57cec5SDimitry Andric return true; 5430b57cec5SDimitry Andric 5440b57cec5SDimitry Andric uint32_t num_restored = 0; 5450b57cec5SDimitry Andric // We need to manually go through all of the registers and restore them 5460b57cec5SDimitry Andric // manually 5470b57cec5SDimitry Andric DataExtractor restore_data(data_sp, m_reg_data.GetByteOrder(), 5480b57cec5SDimitry Andric m_reg_data.GetAddressByteSize()); 5490b57cec5SDimitry Andric 5500b57cec5SDimitry Andric const RegisterInfo *reg_info; 5510b57cec5SDimitry Andric 5520b57cec5SDimitry Andric // The g packet contents may either include the slice registers 5530b57cec5SDimitry Andric // (registers defined in terms of other registers, e.g. eax is a subset 5540b57cec5SDimitry Andric // of rax) or not. The slice registers should NOT be in the g packet, 5550b57cec5SDimitry Andric // but some implementations may incorrectly include them. 5560b57cec5SDimitry Andric // 5570b57cec5SDimitry Andric // If the slice registers are included in the packet, we must step over 5580b57cec5SDimitry Andric // the slice registers when parsing the packet -- relying on the 5590b57cec5SDimitry Andric // RegisterInfo byte_offset field would be incorrect. If the slice 5600b57cec5SDimitry Andric // registers are not included, then using the byte_offset values into the 5610b57cec5SDimitry Andric // data buffer is the best way to find individual register values. 5620b57cec5SDimitry Andric 5630b57cec5SDimitry Andric uint64_t size_including_slice_registers = 0; 5640b57cec5SDimitry Andric uint64_t size_not_including_slice_registers = 0; 5650b57cec5SDimitry Andric uint64_t size_by_highest_offset = 0; 5660b57cec5SDimitry Andric 5670b57cec5SDimitry Andric for (uint32_t reg_idx = 0; 5680b57cec5SDimitry Andric (reg_info = GetRegisterInfoAtIndex(reg_idx)) != nullptr; ++reg_idx) { 5690b57cec5SDimitry Andric size_including_slice_registers += reg_info->byte_size; 5700b57cec5SDimitry Andric if (reg_info->value_regs == nullptr) 5710b57cec5SDimitry Andric size_not_including_slice_registers += reg_info->byte_size; 5720b57cec5SDimitry Andric if (reg_info->byte_offset >= size_by_highest_offset) 5730b57cec5SDimitry Andric size_by_highest_offset = reg_info->byte_offset + reg_info->byte_size; 5740b57cec5SDimitry Andric } 5750b57cec5SDimitry Andric 5760b57cec5SDimitry Andric bool use_byte_offset_into_buffer; 5770b57cec5SDimitry Andric if (size_by_highest_offset == restore_data.GetByteSize()) { 5780b57cec5SDimitry Andric // The size of the packet agrees with the highest offset: + size in the 5790b57cec5SDimitry Andric // register file 5800b57cec5SDimitry Andric use_byte_offset_into_buffer = true; 5810b57cec5SDimitry Andric } else if (size_not_including_slice_registers == 5820b57cec5SDimitry Andric restore_data.GetByteSize()) { 5830b57cec5SDimitry Andric // The size of the packet is the same as concatenating all of the 5840b57cec5SDimitry Andric // registers sequentially, skipping the slice registers 5850b57cec5SDimitry Andric use_byte_offset_into_buffer = true; 5860b57cec5SDimitry Andric } else if (size_including_slice_registers == restore_data.GetByteSize()) { 5870b57cec5SDimitry Andric // The slice registers are present in the packet (when they shouldn't 5880b57cec5SDimitry Andric // be). Don't try to use the RegisterInfo byte_offset into the 5890b57cec5SDimitry Andric // restore_data, it will point to the wrong place. 5900b57cec5SDimitry Andric use_byte_offset_into_buffer = false; 5910b57cec5SDimitry Andric } else { 5920b57cec5SDimitry Andric // None of our expected sizes match the actual g packet data we're 5930b57cec5SDimitry Andric // looking at. The most conservative approach here is to use the 5940b57cec5SDimitry Andric // running total byte offset. 5950b57cec5SDimitry Andric use_byte_offset_into_buffer = false; 5960b57cec5SDimitry Andric } 5970b57cec5SDimitry Andric 5980b57cec5SDimitry Andric // In case our register definitions don't include the correct offsets, 5990b57cec5SDimitry Andric // keep track of the size of each reg & compute offset based on that. 6000b57cec5SDimitry Andric uint32_t running_byte_offset = 0; 6010b57cec5SDimitry Andric for (uint32_t reg_idx = 0; 6020b57cec5SDimitry Andric (reg_info = GetRegisterInfoAtIndex(reg_idx)) != nullptr; 6030b57cec5SDimitry Andric ++reg_idx, running_byte_offset += reg_info->byte_size) { 6040b57cec5SDimitry Andric // Skip composite aka slice registers (e.g. eax is a slice of rax). 6050b57cec5SDimitry Andric if (reg_info->value_regs) 6060b57cec5SDimitry Andric continue; 6070b57cec5SDimitry Andric 6080b57cec5SDimitry Andric const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 6090b57cec5SDimitry Andric 6100b57cec5SDimitry Andric uint32_t register_offset; 6110b57cec5SDimitry Andric if (use_byte_offset_into_buffer) { 6120b57cec5SDimitry Andric register_offset = reg_info->byte_offset; 6130b57cec5SDimitry Andric } else { 6140b57cec5SDimitry Andric register_offset = running_byte_offset; 6150b57cec5SDimitry Andric } 6160b57cec5SDimitry Andric 6170b57cec5SDimitry Andric const uint32_t reg_byte_size = reg_info->byte_size; 6180b57cec5SDimitry Andric 6190b57cec5SDimitry Andric const uint8_t *restore_src = 6200b57cec5SDimitry Andric restore_data.PeekData(register_offset, reg_byte_size); 6210b57cec5SDimitry Andric if (restore_src) { 6220b57cec5SDimitry Andric SetRegisterIsValid(reg, false); 6230b57cec5SDimitry Andric if (gdb_comm.WriteRegister( 6240b57cec5SDimitry Andric m_thread.GetProtocolID(), 6250b57cec5SDimitry Andric reg_info->kinds[eRegisterKindProcessPlugin], 6260b57cec5SDimitry Andric {restore_src, reg_byte_size})) 6270b57cec5SDimitry Andric ++num_restored; 6280b57cec5SDimitry Andric } 6290b57cec5SDimitry Andric } 6300b57cec5SDimitry Andric return num_restored > 0; 6310b57cec5SDimitry Andric } else { 6320b57cec5SDimitry Andric // For the use_g_packet == false case, we're going to write each register 6330b57cec5SDimitry Andric // individually. The data buffer is binary data in this case, instead of 6340b57cec5SDimitry Andric // ascii characters. 6350b57cec5SDimitry Andric 6360b57cec5SDimitry Andric bool arm64_debugserver = false; 6370b57cec5SDimitry Andric if (m_thread.GetProcess().get()) { 6380b57cec5SDimitry Andric const ArchSpec &arch = 6390b57cec5SDimitry Andric m_thread.GetProcess()->GetTarget().GetArchitecture(); 640*9dba64beSDimitry Andric if (arch.IsValid() && 641*9dba64beSDimitry Andric (arch.GetMachine() == llvm::Triple::aarch64 || 642*9dba64beSDimitry Andric arch.GetMachine() == llvm::Triple::aarch64_32) && 6430b57cec5SDimitry Andric arch.GetTriple().getVendor() == llvm::Triple::Apple && 6440b57cec5SDimitry Andric arch.GetTriple().getOS() == llvm::Triple::IOS) { 6450b57cec5SDimitry Andric arm64_debugserver = true; 6460b57cec5SDimitry Andric } 6470b57cec5SDimitry Andric } 6480b57cec5SDimitry Andric uint32_t num_restored = 0; 6490b57cec5SDimitry Andric const RegisterInfo *reg_info; 6500b57cec5SDimitry Andric for (uint32_t i = 0; (reg_info = GetRegisterInfoAtIndex(i)) != nullptr; 6510b57cec5SDimitry Andric i++) { 6520b57cec5SDimitry Andric if (reg_info->value_regs) // skip registers that are slices of real 6530b57cec5SDimitry Andric // registers 6540b57cec5SDimitry Andric continue; 6550b57cec5SDimitry Andric // Skip the fpsr and fpcr floating point status/control register 6560b57cec5SDimitry Andric // writing to work around a bug in an older version of debugserver that 6570b57cec5SDimitry Andric // would lead to register context corruption when writing fpsr/fpcr. 6580b57cec5SDimitry Andric if (arm64_debugserver && (strcmp(reg_info->name, "fpsr") == 0 || 6590b57cec5SDimitry Andric strcmp(reg_info->name, "fpcr") == 0)) { 6600b57cec5SDimitry Andric continue; 6610b57cec5SDimitry Andric } 6620b57cec5SDimitry Andric 6630b57cec5SDimitry Andric SetRegisterIsValid(reg_info, false); 6640b57cec5SDimitry Andric if (gdb_comm.WriteRegister(m_thread.GetProtocolID(), 6650b57cec5SDimitry Andric reg_info->kinds[eRegisterKindProcessPlugin], 6660b57cec5SDimitry Andric {data_sp->GetBytes() + reg_info->byte_offset, 6670b57cec5SDimitry Andric reg_info->byte_size})) 6680b57cec5SDimitry Andric ++num_restored; 6690b57cec5SDimitry Andric } 6700b57cec5SDimitry Andric return num_restored > 0; 6710b57cec5SDimitry Andric } 6720b57cec5SDimitry Andric } else { 6730b57cec5SDimitry Andric Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 6740b57cec5SDimitry Andric GDBR_LOG_PACKETS)); 6750b57cec5SDimitry Andric if (log) { 6760b57cec5SDimitry Andric if (log->GetVerbose()) { 6770b57cec5SDimitry Andric StreamString strm; 6780b57cec5SDimitry Andric gdb_comm.DumpHistory(strm); 679*9dba64beSDimitry Andric LLDB_LOGF(log, 680*9dba64beSDimitry Andric "error: failed to get packet sequence mutex, not sending " 6810b57cec5SDimitry Andric "write all registers:\n%s", 6820b57cec5SDimitry Andric strm.GetData()); 6830b57cec5SDimitry Andric } else 684*9dba64beSDimitry Andric LLDB_LOGF(log, 685*9dba64beSDimitry Andric "error: failed to get packet sequence mutex, not sending " 6860b57cec5SDimitry Andric "write all registers"); 6870b57cec5SDimitry Andric } 6880b57cec5SDimitry Andric } 6890b57cec5SDimitry Andric return false; 6900b57cec5SDimitry Andric } 6910b57cec5SDimitry Andric 6920b57cec5SDimitry Andric uint32_t GDBRemoteRegisterContext::ConvertRegisterKindToRegisterNumber( 6930b57cec5SDimitry Andric lldb::RegisterKind kind, uint32_t num) { 6940b57cec5SDimitry Andric return m_reg_info.ConvertRegisterKindToRegisterNumber(kind, num); 6950b57cec5SDimitry Andric } 6960b57cec5SDimitry Andric 6970b57cec5SDimitry Andric void GDBRemoteDynamicRegisterInfo::HardcodeARMRegisters(bool from_scratch) { 6980b57cec5SDimitry Andric // For Advanced SIMD and VFP register mapping. 6990b57cec5SDimitry Andric static uint32_t g_d0_regs[] = {26, 27, LLDB_INVALID_REGNUM}; // (s0, s1) 7000b57cec5SDimitry Andric static uint32_t g_d1_regs[] = {28, 29, LLDB_INVALID_REGNUM}; // (s2, s3) 7010b57cec5SDimitry Andric static uint32_t g_d2_regs[] = {30, 31, LLDB_INVALID_REGNUM}; // (s4, s5) 7020b57cec5SDimitry Andric static uint32_t g_d3_regs[] = {32, 33, LLDB_INVALID_REGNUM}; // (s6, s7) 7030b57cec5SDimitry Andric static uint32_t g_d4_regs[] = {34, 35, LLDB_INVALID_REGNUM}; // (s8, s9) 7040b57cec5SDimitry Andric static uint32_t g_d5_regs[] = {36, 37, LLDB_INVALID_REGNUM}; // (s10, s11) 7050b57cec5SDimitry Andric static uint32_t g_d6_regs[] = {38, 39, LLDB_INVALID_REGNUM}; // (s12, s13) 7060b57cec5SDimitry Andric static uint32_t g_d7_regs[] = {40, 41, LLDB_INVALID_REGNUM}; // (s14, s15) 7070b57cec5SDimitry Andric static uint32_t g_d8_regs[] = {42, 43, LLDB_INVALID_REGNUM}; // (s16, s17) 7080b57cec5SDimitry Andric static uint32_t g_d9_regs[] = {44, 45, LLDB_INVALID_REGNUM}; // (s18, s19) 7090b57cec5SDimitry Andric static uint32_t g_d10_regs[] = {46, 47, LLDB_INVALID_REGNUM}; // (s20, s21) 7100b57cec5SDimitry Andric static uint32_t g_d11_regs[] = {48, 49, LLDB_INVALID_REGNUM}; // (s22, s23) 7110b57cec5SDimitry Andric static uint32_t g_d12_regs[] = {50, 51, LLDB_INVALID_REGNUM}; // (s24, s25) 7120b57cec5SDimitry Andric static uint32_t g_d13_regs[] = {52, 53, LLDB_INVALID_REGNUM}; // (s26, s27) 7130b57cec5SDimitry Andric static uint32_t g_d14_regs[] = {54, 55, LLDB_INVALID_REGNUM}; // (s28, s29) 7140b57cec5SDimitry Andric static uint32_t g_d15_regs[] = {56, 57, LLDB_INVALID_REGNUM}; // (s30, s31) 7150b57cec5SDimitry Andric static uint32_t g_q0_regs[] = { 7160b57cec5SDimitry Andric 26, 27, 28, 29, LLDB_INVALID_REGNUM}; // (d0, d1) -> (s0, s1, s2, s3) 7170b57cec5SDimitry Andric static uint32_t g_q1_regs[] = { 7180b57cec5SDimitry Andric 30, 31, 32, 33, LLDB_INVALID_REGNUM}; // (d2, d3) -> (s4, s5, s6, s7) 7190b57cec5SDimitry Andric static uint32_t g_q2_regs[] = { 7200b57cec5SDimitry Andric 34, 35, 36, 37, LLDB_INVALID_REGNUM}; // (d4, d5) -> (s8, s9, s10, s11) 7210b57cec5SDimitry Andric static uint32_t g_q3_regs[] = { 7220b57cec5SDimitry Andric 38, 39, 40, 41, LLDB_INVALID_REGNUM}; // (d6, d7) -> (s12, s13, s14, s15) 7230b57cec5SDimitry Andric static uint32_t g_q4_regs[] = { 7240b57cec5SDimitry Andric 42, 43, 44, 45, LLDB_INVALID_REGNUM}; // (d8, d9) -> (s16, s17, s18, s19) 7250b57cec5SDimitry Andric static uint32_t g_q5_regs[] = { 7260b57cec5SDimitry Andric 46, 47, 48, 49, 7270b57cec5SDimitry Andric LLDB_INVALID_REGNUM}; // (d10, d11) -> (s20, s21, s22, s23) 7280b57cec5SDimitry Andric static uint32_t g_q6_regs[] = { 7290b57cec5SDimitry Andric 50, 51, 52, 53, 7300b57cec5SDimitry Andric LLDB_INVALID_REGNUM}; // (d12, d13) -> (s24, s25, s26, s27) 7310b57cec5SDimitry Andric static uint32_t g_q7_regs[] = { 7320b57cec5SDimitry Andric 54, 55, 56, 57, 7330b57cec5SDimitry Andric LLDB_INVALID_REGNUM}; // (d14, d15) -> (s28, s29, s30, s31) 7340b57cec5SDimitry Andric static uint32_t g_q8_regs[] = {59, 60, LLDB_INVALID_REGNUM}; // (d16, d17) 7350b57cec5SDimitry Andric static uint32_t g_q9_regs[] = {61, 62, LLDB_INVALID_REGNUM}; // (d18, d19) 7360b57cec5SDimitry Andric static uint32_t g_q10_regs[] = {63, 64, LLDB_INVALID_REGNUM}; // (d20, d21) 7370b57cec5SDimitry Andric static uint32_t g_q11_regs[] = {65, 66, LLDB_INVALID_REGNUM}; // (d22, d23) 7380b57cec5SDimitry Andric static uint32_t g_q12_regs[] = {67, 68, LLDB_INVALID_REGNUM}; // (d24, d25) 7390b57cec5SDimitry Andric static uint32_t g_q13_regs[] = {69, 70, LLDB_INVALID_REGNUM}; // (d26, d27) 7400b57cec5SDimitry Andric static uint32_t g_q14_regs[] = {71, 72, LLDB_INVALID_REGNUM}; // (d28, d29) 7410b57cec5SDimitry Andric static uint32_t g_q15_regs[] = {73, 74, LLDB_INVALID_REGNUM}; // (d30, d31) 7420b57cec5SDimitry Andric 7430b57cec5SDimitry Andric // This is our array of composite registers, with each element coming from 7440b57cec5SDimitry Andric // the above register mappings. 7450b57cec5SDimitry Andric static uint32_t *g_composites[] = { 7460b57cec5SDimitry Andric g_d0_regs, g_d1_regs, g_d2_regs, g_d3_regs, g_d4_regs, g_d5_regs, 7470b57cec5SDimitry Andric g_d6_regs, g_d7_regs, g_d8_regs, g_d9_regs, g_d10_regs, g_d11_regs, 7480b57cec5SDimitry Andric g_d12_regs, g_d13_regs, g_d14_regs, g_d15_regs, g_q0_regs, g_q1_regs, 7490b57cec5SDimitry Andric g_q2_regs, g_q3_regs, g_q4_regs, g_q5_regs, g_q6_regs, g_q7_regs, 7500b57cec5SDimitry Andric g_q8_regs, g_q9_regs, g_q10_regs, g_q11_regs, g_q12_regs, g_q13_regs, 7510b57cec5SDimitry Andric g_q14_regs, g_q15_regs}; 7520b57cec5SDimitry Andric 7530b57cec5SDimitry Andric // clang-format off 7540b57cec5SDimitry Andric static RegisterInfo g_register_infos[] = { 7550b57cec5SDimitry Andric // NAME ALT SZ OFF ENCODING FORMAT EH_FRAME DWARF GENERIC PROCESS PLUGIN LLDB VALUE REGS INVALIDATE REGS SIZE EXPR SIZE LEN 7560b57cec5SDimitry Andric // ====== ====== === === ============= ========== =================== =================== ====================== ============= ==== ========== =============== ========= ======== 7570b57cec5SDimitry Andric { "r0", "arg1", 4, 0, eEncodingUint, eFormatHex, { ehframe_r0, dwarf_r0, LLDB_REGNUM_GENERIC_ARG1,0, 0 }, nullptr, nullptr, nullptr, 0 }, 7580b57cec5SDimitry Andric { "r1", "arg2", 4, 0, eEncodingUint, eFormatHex, { ehframe_r1, dwarf_r1, LLDB_REGNUM_GENERIC_ARG2,1, 1 }, nullptr, nullptr, nullptr, 0 }, 7590b57cec5SDimitry Andric { "r2", "arg3", 4, 0, eEncodingUint, eFormatHex, { ehframe_r2, dwarf_r2, LLDB_REGNUM_GENERIC_ARG3,2, 2 }, nullptr, nullptr, nullptr, 0 }, 7600b57cec5SDimitry Andric { "r3", "arg4", 4, 0, eEncodingUint, eFormatHex, { ehframe_r3, dwarf_r3, LLDB_REGNUM_GENERIC_ARG4,3, 3 }, nullptr, nullptr, nullptr, 0 }, 7610b57cec5SDimitry Andric { "r4", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r4, dwarf_r4, LLDB_INVALID_REGNUM, 4, 4 }, nullptr, nullptr, nullptr, 0 }, 7620b57cec5SDimitry Andric { "r5", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r5, dwarf_r5, LLDB_INVALID_REGNUM, 5, 5 }, nullptr, nullptr, nullptr, 0 }, 7630b57cec5SDimitry Andric { "r6", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r6, dwarf_r6, LLDB_INVALID_REGNUM, 6, 6 }, nullptr, nullptr, nullptr, 0 }, 7640b57cec5SDimitry Andric { "r7", "fp", 4, 0, eEncodingUint, eFormatHex, { ehframe_r7, dwarf_r7, LLDB_REGNUM_GENERIC_FP, 7, 7 }, nullptr, nullptr, nullptr, 0 }, 7650b57cec5SDimitry Andric { "r8", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r8, dwarf_r8, LLDB_INVALID_REGNUM, 8, 8 }, nullptr, nullptr, nullptr, 0 }, 7660b57cec5SDimitry Andric { "r9", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r9, dwarf_r9, LLDB_INVALID_REGNUM, 9, 9 }, nullptr, nullptr, nullptr, 0 }, 7670b57cec5SDimitry Andric { "r10", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r10, dwarf_r10, LLDB_INVALID_REGNUM, 10, 10 }, nullptr, nullptr, nullptr, 0 }, 7680b57cec5SDimitry Andric { "r11", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r11, dwarf_r11, LLDB_INVALID_REGNUM, 11, 11 }, nullptr, nullptr, nullptr, 0 }, 7690b57cec5SDimitry Andric { "r12", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r12, dwarf_r12, LLDB_INVALID_REGNUM, 12, 12 }, nullptr, nullptr, nullptr, 0 }, 7700b57cec5SDimitry Andric { "sp", "r13", 4, 0, eEncodingUint, eFormatHex, { ehframe_sp, dwarf_sp, LLDB_REGNUM_GENERIC_SP, 13, 13 }, nullptr, nullptr, nullptr, 0 }, 7710b57cec5SDimitry Andric { "lr", "r14", 4, 0, eEncodingUint, eFormatHex, { ehframe_lr, dwarf_lr, LLDB_REGNUM_GENERIC_RA, 14, 14 }, nullptr, nullptr, nullptr, 0 }, 7720b57cec5SDimitry Andric { "pc", "r15", 4, 0, eEncodingUint, eFormatHex, { ehframe_pc, dwarf_pc, LLDB_REGNUM_GENERIC_PC, 15, 15 }, nullptr, nullptr, nullptr, 0 }, 7730b57cec5SDimitry Andric { "f0", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 16, 16 }, nullptr, nullptr, nullptr, 0 }, 7740b57cec5SDimitry Andric { "f1", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 17, 17 }, nullptr, nullptr, nullptr, 0 }, 7750b57cec5SDimitry Andric { "f2", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 18, 18 }, nullptr, nullptr, nullptr, 0 }, 7760b57cec5SDimitry Andric { "f3", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 19, 19 }, nullptr, nullptr, nullptr, 0 }, 7770b57cec5SDimitry Andric { "f4", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 20, 20 }, nullptr, nullptr, nullptr, 0 }, 7780b57cec5SDimitry Andric { "f5", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 21, 21 }, nullptr, nullptr, nullptr, 0 }, 7790b57cec5SDimitry Andric { "f6", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 22, 22 }, nullptr, nullptr, nullptr, 0 }, 7800b57cec5SDimitry Andric { "f7", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 23, 23 }, nullptr, nullptr, nullptr, 0 }, 7810b57cec5SDimitry Andric { "fps", nullptr, 4, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 24, 24 }, nullptr, nullptr, nullptr, 0 }, 7820b57cec5SDimitry Andric { "cpsr","flags", 4, 0, eEncodingUint, eFormatHex, { ehframe_cpsr, dwarf_cpsr, LLDB_INVALID_REGNUM, 25, 25 }, nullptr, nullptr, nullptr, 0 }, 7830b57cec5SDimitry Andric { "s0", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s0, LLDB_INVALID_REGNUM, 26, 26 }, nullptr, nullptr, nullptr, 0 }, 7840b57cec5SDimitry Andric { "s1", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s1, LLDB_INVALID_REGNUM, 27, 27 }, nullptr, nullptr, nullptr, 0 }, 7850b57cec5SDimitry Andric { "s2", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s2, LLDB_INVALID_REGNUM, 28, 28 }, nullptr, nullptr, nullptr, 0 }, 7860b57cec5SDimitry Andric { "s3", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s3, LLDB_INVALID_REGNUM, 29, 29 }, nullptr, nullptr, nullptr, 0 }, 7870b57cec5SDimitry Andric { "s4", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s4, LLDB_INVALID_REGNUM, 30, 30 }, nullptr, nullptr, nullptr, 0 }, 7880b57cec5SDimitry Andric { "s5", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s5, LLDB_INVALID_REGNUM, 31, 31 }, nullptr, nullptr, nullptr, 0 }, 7890b57cec5SDimitry Andric { "s6", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s6, LLDB_INVALID_REGNUM, 32, 32 }, nullptr, nullptr, nullptr, 0 }, 7900b57cec5SDimitry Andric { "s7", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s7, LLDB_INVALID_REGNUM, 33, 33 }, nullptr, nullptr, nullptr, 0 }, 7910b57cec5SDimitry Andric { "s8", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s8, LLDB_INVALID_REGNUM, 34, 34 }, nullptr, nullptr, nullptr, 0 }, 7920b57cec5SDimitry Andric { "s9", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s9, LLDB_INVALID_REGNUM, 35, 35 }, nullptr, nullptr, nullptr, 0 }, 7930b57cec5SDimitry Andric { "s10", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s10, LLDB_INVALID_REGNUM, 36, 36 }, nullptr, nullptr, nullptr, 0 }, 7940b57cec5SDimitry Andric { "s11", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s11, LLDB_INVALID_REGNUM, 37, 37 }, nullptr, nullptr, nullptr, 0 }, 7950b57cec5SDimitry Andric { "s12", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s12, LLDB_INVALID_REGNUM, 38, 38 }, nullptr, nullptr, nullptr, 0 }, 7960b57cec5SDimitry Andric { "s13", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s13, LLDB_INVALID_REGNUM, 39, 39 }, nullptr, nullptr, nullptr, 0 }, 7970b57cec5SDimitry Andric { "s14", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s14, LLDB_INVALID_REGNUM, 40, 40 }, nullptr, nullptr, nullptr, 0 }, 7980b57cec5SDimitry Andric { "s15", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s15, LLDB_INVALID_REGNUM, 41, 41 }, nullptr, nullptr, nullptr, 0 }, 7990b57cec5SDimitry Andric { "s16", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s16, LLDB_INVALID_REGNUM, 42, 42 }, nullptr, nullptr, nullptr, 0 }, 8000b57cec5SDimitry Andric { "s17", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s17, LLDB_INVALID_REGNUM, 43, 43 }, nullptr, nullptr, nullptr, 0 }, 8010b57cec5SDimitry Andric { "s18", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s18, LLDB_INVALID_REGNUM, 44, 44 }, nullptr, nullptr, nullptr, 0 }, 8020b57cec5SDimitry Andric { "s19", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s19, LLDB_INVALID_REGNUM, 45, 45 }, nullptr, nullptr, nullptr, 0 }, 8030b57cec5SDimitry Andric { "s20", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s20, LLDB_INVALID_REGNUM, 46, 46 }, nullptr, nullptr, nullptr, 0 }, 8040b57cec5SDimitry Andric { "s21", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s21, LLDB_INVALID_REGNUM, 47, 47 }, nullptr, nullptr, nullptr, 0 }, 8050b57cec5SDimitry Andric { "s22", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s22, LLDB_INVALID_REGNUM, 48, 48 }, nullptr, nullptr, nullptr, 0 }, 8060b57cec5SDimitry Andric { "s23", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s23, LLDB_INVALID_REGNUM, 49, 49 }, nullptr, nullptr, nullptr, 0 }, 8070b57cec5SDimitry Andric { "s24", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s24, LLDB_INVALID_REGNUM, 50, 50 }, nullptr, nullptr, nullptr, 0 }, 8080b57cec5SDimitry Andric { "s25", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s25, LLDB_INVALID_REGNUM, 51, 51 }, nullptr, nullptr, nullptr, 0 }, 8090b57cec5SDimitry Andric { "s26", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s26, LLDB_INVALID_REGNUM, 52, 52 }, nullptr, nullptr, nullptr, 0 }, 8100b57cec5SDimitry Andric { "s27", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s27, LLDB_INVALID_REGNUM, 53, 53 }, nullptr, nullptr, nullptr, 0 }, 8110b57cec5SDimitry Andric { "s28", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s28, LLDB_INVALID_REGNUM, 54, 54 }, nullptr, nullptr, nullptr, 0 }, 8120b57cec5SDimitry Andric { "s29", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s29, LLDB_INVALID_REGNUM, 55, 55 }, nullptr, nullptr, nullptr, 0 }, 8130b57cec5SDimitry Andric { "s30", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s30, LLDB_INVALID_REGNUM, 56, 56 }, nullptr, nullptr, nullptr, 0 }, 8140b57cec5SDimitry Andric { "s31", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s31, LLDB_INVALID_REGNUM, 57, 57 }, nullptr, nullptr, nullptr, 0 }, 8150b57cec5SDimitry Andric { "fpscr",nullptr, 4, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 58, 58 }, nullptr, nullptr, nullptr, 0 }, 8160b57cec5SDimitry Andric { "d16", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d16, LLDB_INVALID_REGNUM, 59, 59 }, nullptr, nullptr, nullptr, 0 }, 8170b57cec5SDimitry Andric { "d17", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d17, LLDB_INVALID_REGNUM, 60, 60 }, nullptr, nullptr, nullptr, 0 }, 8180b57cec5SDimitry Andric { "d18", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d18, LLDB_INVALID_REGNUM, 61, 61 }, nullptr, nullptr, nullptr, 0 }, 8190b57cec5SDimitry Andric { "d19", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d19, LLDB_INVALID_REGNUM, 62, 62 }, nullptr, nullptr, nullptr, 0 }, 8200b57cec5SDimitry Andric { "d20", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d20, LLDB_INVALID_REGNUM, 63, 63 }, nullptr, nullptr, nullptr, 0 }, 8210b57cec5SDimitry Andric { "d21", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d21, LLDB_INVALID_REGNUM, 64, 64 }, nullptr, nullptr, nullptr, 0 }, 8220b57cec5SDimitry Andric { "d22", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d22, LLDB_INVALID_REGNUM, 65, 65 }, nullptr, nullptr, nullptr, 0 }, 8230b57cec5SDimitry Andric { "d23", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d23, LLDB_INVALID_REGNUM, 66, 66 }, nullptr, nullptr, nullptr, 0 }, 8240b57cec5SDimitry Andric { "d24", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d24, LLDB_INVALID_REGNUM, 67, 67 }, nullptr, nullptr, nullptr, 0 }, 8250b57cec5SDimitry Andric { "d25", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d25, LLDB_INVALID_REGNUM, 68, 68 }, nullptr, nullptr, nullptr, 0 }, 8260b57cec5SDimitry Andric { "d26", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d26, LLDB_INVALID_REGNUM, 69, 69 }, nullptr, nullptr, nullptr, 0 }, 8270b57cec5SDimitry Andric { "d27", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d27, LLDB_INVALID_REGNUM, 70, 70 }, nullptr, nullptr, nullptr, 0 }, 8280b57cec5SDimitry Andric { "d28", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d28, LLDB_INVALID_REGNUM, 71, 71 }, nullptr, nullptr, nullptr, 0 }, 8290b57cec5SDimitry Andric { "d29", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d29, LLDB_INVALID_REGNUM, 72, 72 }, nullptr, nullptr, nullptr, 0 }, 8300b57cec5SDimitry Andric { "d30", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d30, LLDB_INVALID_REGNUM, 73, 73 }, nullptr, nullptr, nullptr, 0 }, 8310b57cec5SDimitry Andric { "d31", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d31, LLDB_INVALID_REGNUM, 74, 74 }, nullptr, nullptr, nullptr, 0 }, 8320b57cec5SDimitry Andric { "d0", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d0, LLDB_INVALID_REGNUM, 75, 75 }, g_d0_regs, nullptr, nullptr, 0 }, 8330b57cec5SDimitry Andric { "d1", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d1, LLDB_INVALID_REGNUM, 76, 76 }, g_d1_regs, nullptr, nullptr, 0 }, 8340b57cec5SDimitry Andric { "d2", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d2, LLDB_INVALID_REGNUM, 77, 77 }, g_d2_regs, nullptr, nullptr, 0 }, 8350b57cec5SDimitry Andric { "d3", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d3, LLDB_INVALID_REGNUM, 78, 78 }, g_d3_regs, nullptr, nullptr, 0 }, 8360b57cec5SDimitry Andric { "d4", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d4, LLDB_INVALID_REGNUM, 79, 79 }, g_d4_regs, nullptr, nullptr, 0 }, 8370b57cec5SDimitry Andric { "d5", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d5, LLDB_INVALID_REGNUM, 80, 80 }, g_d5_regs, nullptr, nullptr, 0 }, 8380b57cec5SDimitry Andric { "d6", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d6, LLDB_INVALID_REGNUM, 81, 81 }, g_d6_regs, nullptr, nullptr, 0 }, 8390b57cec5SDimitry Andric { "d7", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d7, LLDB_INVALID_REGNUM, 82, 82 }, g_d7_regs, nullptr, nullptr, 0 }, 8400b57cec5SDimitry Andric { "d8", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d8, LLDB_INVALID_REGNUM, 83, 83 }, g_d8_regs, nullptr, nullptr, 0 }, 8410b57cec5SDimitry Andric { "d9", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d9, LLDB_INVALID_REGNUM, 84, 84 }, g_d9_regs, nullptr, nullptr, 0 }, 8420b57cec5SDimitry Andric { "d10", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d10, LLDB_INVALID_REGNUM, 85, 85 }, g_d10_regs, nullptr, nullptr, 0 }, 8430b57cec5SDimitry Andric { "d11", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d11, LLDB_INVALID_REGNUM, 86, 86 }, g_d11_regs, nullptr, nullptr, 0 }, 8440b57cec5SDimitry Andric { "d12", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d12, LLDB_INVALID_REGNUM, 87, 87 }, g_d12_regs, nullptr, nullptr, 0 }, 8450b57cec5SDimitry Andric { "d13", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d13, LLDB_INVALID_REGNUM, 88, 88 }, g_d13_regs, nullptr, nullptr, 0 }, 8460b57cec5SDimitry Andric { "d14", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d14, LLDB_INVALID_REGNUM, 89, 89 }, g_d14_regs, nullptr, nullptr, 0 }, 8470b57cec5SDimitry Andric { "d15", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d15, LLDB_INVALID_REGNUM, 90, 90 }, g_d15_regs, nullptr, nullptr, 0 }, 8480b57cec5SDimitry Andric { "q0", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q0, LLDB_INVALID_REGNUM, 91, 91 }, g_q0_regs, nullptr, nullptr, 0 }, 8490b57cec5SDimitry Andric { "q1", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q1, LLDB_INVALID_REGNUM, 92, 92 }, g_q1_regs, nullptr, nullptr, 0 }, 8500b57cec5SDimitry Andric { "q2", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q2, LLDB_INVALID_REGNUM, 93, 93 }, g_q2_regs, nullptr, nullptr, 0 }, 8510b57cec5SDimitry Andric { "q3", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q3, LLDB_INVALID_REGNUM, 94, 94 }, g_q3_regs, nullptr, nullptr, 0 }, 8520b57cec5SDimitry Andric { "q4", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q4, LLDB_INVALID_REGNUM, 95, 95 }, g_q4_regs, nullptr, nullptr, 0 }, 8530b57cec5SDimitry Andric { "q5", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q5, LLDB_INVALID_REGNUM, 96, 96 }, g_q5_regs, nullptr, nullptr, 0 }, 8540b57cec5SDimitry Andric { "q6", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q6, LLDB_INVALID_REGNUM, 97, 97 }, g_q6_regs, nullptr, nullptr, 0 }, 8550b57cec5SDimitry Andric { "q7", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q7, LLDB_INVALID_REGNUM, 98, 98 }, g_q7_regs, nullptr, nullptr, 0 }, 8560b57cec5SDimitry Andric { "q8", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q8, LLDB_INVALID_REGNUM, 99, 99 }, g_q8_regs, nullptr, nullptr, 0 }, 8570b57cec5SDimitry Andric { "q9", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q9, LLDB_INVALID_REGNUM, 100, 100 }, g_q9_regs, nullptr, nullptr, 0 }, 8580b57cec5SDimitry Andric { "q10", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q10, LLDB_INVALID_REGNUM, 101, 101 }, g_q10_regs, nullptr, nullptr, 0 }, 8590b57cec5SDimitry Andric { "q11", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q11, LLDB_INVALID_REGNUM, 102, 102 }, g_q11_regs, nullptr, nullptr, 0 }, 8600b57cec5SDimitry Andric { "q12", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q12, LLDB_INVALID_REGNUM, 103, 103 }, g_q12_regs, nullptr, nullptr, 0 }, 8610b57cec5SDimitry Andric { "q13", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q13, LLDB_INVALID_REGNUM, 104, 104 }, g_q13_regs, nullptr, nullptr, 0 }, 8620b57cec5SDimitry Andric { "q14", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q14, LLDB_INVALID_REGNUM, 105, 105 }, g_q14_regs, nullptr, nullptr, 0 }, 8630b57cec5SDimitry Andric { "q15", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q15, LLDB_INVALID_REGNUM, 106, 106 }, g_q15_regs, nullptr, nullptr, 0 } 8640b57cec5SDimitry Andric }; 8650b57cec5SDimitry Andric // clang-format on 8660b57cec5SDimitry Andric 8670b57cec5SDimitry Andric static const uint32_t num_registers = llvm::array_lengthof(g_register_infos); 8680b57cec5SDimitry Andric static ConstString gpr_reg_set("General Purpose Registers"); 8690b57cec5SDimitry Andric static ConstString sfp_reg_set("Software Floating Point Registers"); 8700b57cec5SDimitry Andric static ConstString vfp_reg_set("Floating Point Registers"); 8710b57cec5SDimitry Andric size_t i; 8720b57cec5SDimitry Andric if (from_scratch) { 8730b57cec5SDimitry Andric // Calculate the offsets of the registers 8740b57cec5SDimitry Andric // Note that the layout of the "composite" registers (d0-d15 and q0-q15) 8750b57cec5SDimitry Andric // which comes after the "primordial" registers is important. This enables 8760b57cec5SDimitry Andric // us to calculate the offset of the composite register by using the offset 8770b57cec5SDimitry Andric // of its first primordial register. For example, to calculate the offset 8780b57cec5SDimitry Andric // of q0, use s0's offset. 8790b57cec5SDimitry Andric if (g_register_infos[2].byte_offset == 0) { 8800b57cec5SDimitry Andric uint32_t byte_offset = 0; 8810b57cec5SDimitry Andric for (i = 0; i < num_registers; ++i) { 8820b57cec5SDimitry Andric // For primordial registers, increment the byte_offset by the byte_size 8830b57cec5SDimitry Andric // to arrive at the byte_offset for the next register. Otherwise, we 8840b57cec5SDimitry Andric // have a composite register whose offset can be calculated by 8850b57cec5SDimitry Andric // consulting the offset of its first primordial register. 8860b57cec5SDimitry Andric if (!g_register_infos[i].value_regs) { 8870b57cec5SDimitry Andric g_register_infos[i].byte_offset = byte_offset; 8880b57cec5SDimitry Andric byte_offset += g_register_infos[i].byte_size; 8890b57cec5SDimitry Andric } else { 8900b57cec5SDimitry Andric const uint32_t first_primordial_reg = 8910b57cec5SDimitry Andric g_register_infos[i].value_regs[0]; 8920b57cec5SDimitry Andric g_register_infos[i].byte_offset = 8930b57cec5SDimitry Andric g_register_infos[first_primordial_reg].byte_offset; 8940b57cec5SDimitry Andric } 8950b57cec5SDimitry Andric } 8960b57cec5SDimitry Andric } 8970b57cec5SDimitry Andric for (i = 0; i < num_registers; ++i) { 8980b57cec5SDimitry Andric ConstString name; 8990b57cec5SDimitry Andric ConstString alt_name; 9000b57cec5SDimitry Andric if (g_register_infos[i].name && g_register_infos[i].name[0]) 9010b57cec5SDimitry Andric name.SetCString(g_register_infos[i].name); 9020b57cec5SDimitry Andric if (g_register_infos[i].alt_name && g_register_infos[i].alt_name[0]) 9030b57cec5SDimitry Andric alt_name.SetCString(g_register_infos[i].alt_name); 9040b57cec5SDimitry Andric 9050b57cec5SDimitry Andric if (i <= 15 || i == 25) 9060b57cec5SDimitry Andric AddRegister(g_register_infos[i], name, alt_name, gpr_reg_set); 9070b57cec5SDimitry Andric else if (i <= 24) 9080b57cec5SDimitry Andric AddRegister(g_register_infos[i], name, alt_name, sfp_reg_set); 9090b57cec5SDimitry Andric else 9100b57cec5SDimitry Andric AddRegister(g_register_infos[i], name, alt_name, vfp_reg_set); 9110b57cec5SDimitry Andric } 9120b57cec5SDimitry Andric } else { 9130b57cec5SDimitry Andric // Add composite registers to our primordial registers, then. 9140b57cec5SDimitry Andric const size_t num_composites = llvm::array_lengthof(g_composites); 9150b57cec5SDimitry Andric const size_t num_dynamic_regs = GetNumRegisters(); 9160b57cec5SDimitry Andric const size_t num_common_regs = num_registers - num_composites; 9170b57cec5SDimitry Andric RegisterInfo *g_comp_register_infos = g_register_infos + num_common_regs; 9180b57cec5SDimitry Andric 9190b57cec5SDimitry Andric // First we need to validate that all registers that we already have match 9200b57cec5SDimitry Andric // the non composite regs. If so, then we can add the registers, else we 9210b57cec5SDimitry Andric // need to bail 9220b57cec5SDimitry Andric bool match = true; 9230b57cec5SDimitry Andric if (num_dynamic_regs == num_common_regs) { 9240b57cec5SDimitry Andric for (i = 0; match && i < num_dynamic_regs; ++i) { 9250b57cec5SDimitry Andric // Make sure all register names match 9260b57cec5SDimitry Andric if (m_regs[i].name && g_register_infos[i].name) { 9270b57cec5SDimitry Andric if (strcmp(m_regs[i].name, g_register_infos[i].name)) { 9280b57cec5SDimitry Andric match = false; 9290b57cec5SDimitry Andric break; 9300b57cec5SDimitry Andric } 9310b57cec5SDimitry Andric } 9320b57cec5SDimitry Andric 9330b57cec5SDimitry Andric // Make sure all register byte sizes match 9340b57cec5SDimitry Andric if (m_regs[i].byte_size != g_register_infos[i].byte_size) { 9350b57cec5SDimitry Andric match = false; 9360b57cec5SDimitry Andric break; 9370b57cec5SDimitry Andric } 9380b57cec5SDimitry Andric } 9390b57cec5SDimitry Andric } else { 9400b57cec5SDimitry Andric // Wrong number of registers. 9410b57cec5SDimitry Andric match = false; 9420b57cec5SDimitry Andric } 9430b57cec5SDimitry Andric // If "match" is true, then we can add extra registers. 9440b57cec5SDimitry Andric if (match) { 9450b57cec5SDimitry Andric for (i = 0; i < num_composites; ++i) { 9460b57cec5SDimitry Andric ConstString name; 9470b57cec5SDimitry Andric ConstString alt_name; 9480b57cec5SDimitry Andric const uint32_t first_primordial_reg = 9490b57cec5SDimitry Andric g_comp_register_infos[i].value_regs[0]; 9500b57cec5SDimitry Andric const char *reg_name = g_register_infos[first_primordial_reg].name; 9510b57cec5SDimitry Andric if (reg_name && reg_name[0]) { 9520b57cec5SDimitry Andric for (uint32_t j = 0; j < num_dynamic_regs; ++j) { 9530b57cec5SDimitry Andric const RegisterInfo *reg_info = GetRegisterInfoAtIndex(j); 9540b57cec5SDimitry Andric // Find a matching primordial register info entry. 9550b57cec5SDimitry Andric if (reg_info && reg_info->name && 9560b57cec5SDimitry Andric ::strcasecmp(reg_info->name, reg_name) == 0) { 9570b57cec5SDimitry Andric // The name matches the existing primordial entry. Find and 9580b57cec5SDimitry Andric // assign the offset, and then add this composite register entry. 9590b57cec5SDimitry Andric g_comp_register_infos[i].byte_offset = reg_info->byte_offset; 9600b57cec5SDimitry Andric name.SetCString(g_comp_register_infos[i].name); 9610b57cec5SDimitry Andric AddRegister(g_comp_register_infos[i], name, alt_name, 9620b57cec5SDimitry Andric vfp_reg_set); 9630b57cec5SDimitry Andric } 9640b57cec5SDimitry Andric } 9650b57cec5SDimitry Andric } 9660b57cec5SDimitry Andric } 9670b57cec5SDimitry Andric } 9680b57cec5SDimitry Andric } 9690b57cec5SDimitry Andric } 970