| //===-- GDBRemoteRegisterContext.cpp ----------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "GDBRemoteRegisterContext.h" |
| |
| // C Includes |
| // C++ Includes |
| // Other libraries and framework includes |
| #include "lldb/Core/RegisterValue.h" |
| #include "lldb/Core/Scalar.h" |
| #include "lldb/Target/ExecutionContext.h" |
| #include "lldb/Target/Target.h" |
| #include "lldb/Utility/DataBufferHeap.h" |
| #include "lldb/Utility/DataExtractor.h" |
| #include "lldb/Utility/StreamString.h" |
| // Project includes |
| #include "ProcessGDBRemote.h" |
| #include "ProcessGDBRemoteLog.h" |
| #include "ThreadGDBRemote.h" |
| #include "Utility/ARM_DWARF_Registers.h" |
| #include "Utility/ARM_ehframe_Registers.h" |
| #include "lldb/Utility/StringExtractorGDBRemote.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| using namespace lldb_private::process_gdb_remote; |
| |
| //---------------------------------------------------------------------- |
| // GDBRemoteRegisterContext constructor |
| //---------------------------------------------------------------------- |
| GDBRemoteRegisterContext::GDBRemoteRegisterContext( |
| ThreadGDBRemote &thread, uint32_t concrete_frame_idx, |
| GDBRemoteDynamicRegisterInfo ®_info, bool read_all_at_once) |
| : RegisterContext(thread, concrete_frame_idx), m_reg_info(reg_info), |
| m_reg_valid(), m_reg_data(), m_read_all_at_once(read_all_at_once) { |
| // Resize our vector of bools to contain one bool for every register. We will |
| // use these boolean values to know when a register value is valid in |
| // m_reg_data. |
| m_reg_valid.resize(reg_info.GetNumRegisters()); |
| |
| // Make a heap based buffer that is big enough to store all registers |
| DataBufferSP reg_data_sp( |
| new DataBufferHeap(reg_info.GetRegisterDataByteSize(), 0)); |
| m_reg_data.SetData(reg_data_sp); |
| m_reg_data.SetByteOrder(thread.GetProcess()->GetByteOrder()); |
| } |
| |
| //---------------------------------------------------------------------- |
| // Destructor |
| //---------------------------------------------------------------------- |
| GDBRemoteRegisterContext::~GDBRemoteRegisterContext() {} |
| |
| void GDBRemoteRegisterContext::InvalidateAllRegisters() { |
| SetAllRegisterValid(false); |
| } |
| |
| void GDBRemoteRegisterContext::SetAllRegisterValid(bool b) { |
| std::vector<bool>::iterator pos, end = m_reg_valid.end(); |
| for (pos = m_reg_valid.begin(); pos != end; ++pos) |
| *pos = b; |
| } |
| |
| size_t GDBRemoteRegisterContext::GetRegisterCount() { |
| return m_reg_info.GetNumRegisters(); |
| } |
| |
| const RegisterInfo * |
| GDBRemoteRegisterContext::GetRegisterInfoAtIndex(size_t reg) { |
| RegisterInfo *reg_info = m_reg_info.GetRegisterInfoAtIndex(reg); |
| |
| if (reg_info && reg_info->dynamic_size_dwarf_expr_bytes) { |
| const ArchSpec &arch = m_thread.GetProcess()->GetTarget().GetArchitecture(); |
| uint8_t reg_size = UpdateDynamicRegisterSize(arch, reg_info); |
| reg_info->byte_size = reg_size; |
| } |
| return reg_info; |
| } |
| |
| size_t GDBRemoteRegisterContext::GetRegisterSetCount() { |
| return m_reg_info.GetNumRegisterSets(); |
| } |
| |
| const RegisterSet *GDBRemoteRegisterContext::GetRegisterSet(size_t reg_set) { |
| return m_reg_info.GetRegisterSet(reg_set); |
| } |
| |
| bool GDBRemoteRegisterContext::ReadRegister(const RegisterInfo *reg_info, |
| RegisterValue &value) { |
| // Read the register |
| if (ReadRegisterBytes(reg_info, m_reg_data)) { |
| const bool partial_data_ok = false; |
| Status error(value.SetValueFromData( |
| reg_info, m_reg_data, reg_info->byte_offset, partial_data_ok)); |
| return error.Success(); |
| } |
| return false; |
| } |
| |
| bool GDBRemoteRegisterContext::PrivateSetRegisterValue( |
| uint32_t reg, llvm::ArrayRef<uint8_t> data) { |
| const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg); |
| if (reg_info == NULL) |
| return false; |
| |
| // Invalidate if needed |
| InvalidateIfNeeded(false); |
| |
| const size_t reg_byte_size = reg_info->byte_size; |
| memcpy(const_cast<uint8_t *>( |
| m_reg_data.PeekData(reg_info->byte_offset, reg_byte_size)), |
| data.data(), std::min(data.size(), reg_byte_size)); |
| bool success = data.size() >= reg_byte_size; |
| if (success) { |
| SetRegisterIsValid(reg, true); |
| } else if (data.size() > 0) { |
| // Only set register is valid to false if we copied some bytes, else leave |
| // it as it was. |
| SetRegisterIsValid(reg, false); |
| } |
| return success; |
| } |
| |
| bool GDBRemoteRegisterContext::PrivateSetRegisterValue(uint32_t reg, |
| uint64_t new_reg_val) { |
| const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg); |
| if (reg_info == NULL) |
| return false; |
| |
| // Early in process startup, we can get a thread that has an invalid byte |
| // order because the process hasn't been completely set up yet (see the ctor |
| // where the byte order is setfrom the process). If that's the case, we |
| // can't set the value here. |
| if (m_reg_data.GetByteOrder() == eByteOrderInvalid) { |
| return false; |
| } |
| |
| // Invalidate if needed |
| InvalidateIfNeeded(false); |
| |
| DataBufferSP buffer_sp(new DataBufferHeap(&new_reg_val, sizeof(new_reg_val))); |
| DataExtractor data(buffer_sp, endian::InlHostByteOrder(), sizeof(void *)); |
| |
| // If our register context and our register info disagree, which should never |
| // happen, don't overwrite past the end of the buffer. |
| if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) |
| return false; |
| |
| // Grab a pointer to where we are going to put this register |
| uint8_t *dst = const_cast<uint8_t *>( |
| m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size)); |
| |
| if (dst == NULL) |
| return false; |
| |
| if (data.CopyByteOrderedData(0, // src offset |
| reg_info->byte_size, // src length |
| dst, // dst |
| reg_info->byte_size, // dst length |
| m_reg_data.GetByteOrder())) // dst byte order |
| { |
| SetRegisterIsValid(reg, true); |
| return true; |
| } |
| return false; |
| } |
| |
| // Helper function for GDBRemoteRegisterContext::ReadRegisterBytes(). |
| bool GDBRemoteRegisterContext::GetPrimordialRegister( |
| const RegisterInfo *reg_info, GDBRemoteCommunicationClient &gdb_comm) { |
| const uint32_t lldb_reg = reg_info->kinds[eRegisterKindLLDB]; |
| const uint32_t remote_reg = reg_info->kinds[eRegisterKindProcessPlugin]; |
| |
| if (DataBufferSP buffer_sp = |
| gdb_comm.ReadRegister(m_thread.GetProtocolID(), remote_reg)) |
| return PrivateSetRegisterValue( |
| lldb_reg, llvm::ArrayRef<uint8_t>(buffer_sp->GetBytes(), |
| buffer_sp->GetByteSize())); |
| return false; |
| } |
| |
| bool GDBRemoteRegisterContext::ReadRegisterBytes(const RegisterInfo *reg_info, |
| DataExtractor &data) { |
| ExecutionContext exe_ctx(CalculateThread()); |
| |
| Process *process = exe_ctx.GetProcessPtr(); |
| Thread *thread = exe_ctx.GetThreadPtr(); |
| if (process == NULL || thread == NULL) |
| return false; |
| |
| GDBRemoteCommunicationClient &gdb_comm( |
| ((ProcessGDBRemote *)process)->GetGDBRemote()); |
| |
| InvalidateIfNeeded(false); |
| |
| const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; |
| |
| if (!GetRegisterIsValid(reg)) { |
| if (m_read_all_at_once) { |
| if (DataBufferSP buffer_sp = |
| gdb_comm.ReadAllRegisters(m_thread.GetProtocolID())) { |
| memcpy(const_cast<uint8_t *>(m_reg_data.GetDataStart()), |
| buffer_sp->GetBytes(), |
| std::min(buffer_sp->GetByteSize(), m_reg_data.GetByteSize())); |
| if (buffer_sp->GetByteSize() >= m_reg_data.GetByteSize()) { |
| SetAllRegisterValid(true); |
| return true; |
| } |
| } |
| return false; |
| } |
| if (reg_info->value_regs) { |
| // Process this composite register request by delegating to the |
| // constituent primordial registers. |
| |
| // Index of the primordial register. |
| bool success = true; |
| for (uint32_t idx = 0; success; ++idx) { |
| const uint32_t prim_reg = reg_info->value_regs[idx]; |
| if (prim_reg == LLDB_INVALID_REGNUM) |
| break; |
| // We have a valid primordial register as our constituent. Grab the |
| // corresponding register info. |
| const RegisterInfo *prim_reg_info = GetRegisterInfoAtIndex(prim_reg); |
| if (prim_reg_info == NULL) |
| success = false; |
| else { |
| // Read the containing register if it hasn't already been read |
| if (!GetRegisterIsValid(prim_reg)) |
| success = GetPrimordialRegister(prim_reg_info, gdb_comm); |
| } |
| } |
| |
| if (success) { |
| // If we reach this point, all primordial register requests have |
| // succeeded. Validate this composite register. |
| SetRegisterIsValid(reg_info, true); |
| } |
| } else { |
| // Get each register individually |
| GetPrimordialRegister(reg_info, gdb_comm); |
| } |
| |
| // Make sure we got a valid register value after reading it |
| if (!GetRegisterIsValid(reg)) |
| return false; |
| } |
| |
| if (&data != &m_reg_data) { |
| #if defined(LLDB_CONFIGURATION_DEBUG) |
| assert(m_reg_data.GetByteSize() >= |
| reg_info->byte_offset + reg_info->byte_size); |
| #endif |
| // If our register context and our register info disagree, which should |
| // never happen, don't read past the end of the buffer. |
| if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) |
| return false; |
| |
| // If we aren't extracting into our own buffer (which only happens when |
| // this function is called from ReadRegisterValue(uint32_t, Scalar&)) then |
| // we transfer bytes from our buffer into the data buffer that was passed |
| // in |
| |
| data.SetByteOrder(m_reg_data.GetByteOrder()); |
| data.SetData(m_reg_data, reg_info->byte_offset, reg_info->byte_size); |
| } |
| return true; |
| } |
| |
| bool GDBRemoteRegisterContext::WriteRegister(const RegisterInfo *reg_info, |
| const RegisterValue &value) { |
| DataExtractor data; |
| if (value.GetData(data)) |
| return WriteRegisterBytes(reg_info, data, 0); |
| return false; |
| } |
| |
| // Helper function for GDBRemoteRegisterContext::WriteRegisterBytes(). |
| bool GDBRemoteRegisterContext::SetPrimordialRegister( |
| const RegisterInfo *reg_info, GDBRemoteCommunicationClient &gdb_comm) { |
| StreamString packet; |
| StringExtractorGDBRemote response; |
| const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; |
| // Invalidate just this register |
| SetRegisterIsValid(reg, false); |
| |
| return gdb_comm.WriteRegister( |
| m_thread.GetProtocolID(), reg_info->kinds[eRegisterKindProcessPlugin], |
| {m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size), |
| reg_info->byte_size}); |
| } |
| |
| bool GDBRemoteRegisterContext::WriteRegisterBytes(const RegisterInfo *reg_info, |
| DataExtractor &data, |
| uint32_t data_offset) { |
| ExecutionContext exe_ctx(CalculateThread()); |
| |
| Process *process = exe_ctx.GetProcessPtr(); |
| Thread *thread = exe_ctx.GetThreadPtr(); |
| if (process == NULL || thread == NULL) |
| return false; |
| |
| GDBRemoteCommunicationClient &gdb_comm( |
| ((ProcessGDBRemote *)process)->GetGDBRemote()); |
| |
| #if defined(LLDB_CONFIGURATION_DEBUG) |
| assert(m_reg_data.GetByteSize() >= |
| reg_info->byte_offset + reg_info->byte_size); |
| #endif |
| |
| // If our register context and our register info disagree, which should never |
| // happen, don't overwrite past the end of the buffer. |
| if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) |
| return false; |
| |
| // Grab a pointer to where we are going to put this register |
| uint8_t *dst = const_cast<uint8_t *>( |
| m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size)); |
| |
| if (dst == NULL) |
| return false; |
| |
| if (data.CopyByteOrderedData(data_offset, // src offset |
| reg_info->byte_size, // src length |
| dst, // dst |
| reg_info->byte_size, // dst length |
| m_reg_data.GetByteOrder())) // dst byte order |
| { |
| GDBRemoteClientBase::Lock lock(gdb_comm, false); |
| if (lock) { |
| if (m_read_all_at_once) { |
| // Invalidate all register values |
| InvalidateIfNeeded(true); |
| |
| // Set all registers in one packet |
| if (gdb_comm.WriteAllRegisters( |
| m_thread.GetProtocolID(), |
| {m_reg_data.GetDataStart(), size_t(m_reg_data.GetByteSize())})) |
| |
| { |
| SetAllRegisterValid(false); |
| return true; |
| } |
| } else { |
| bool success = true; |
| |
| if (reg_info->value_regs) { |
| // This register is part of another register. In this case we read |
| // the actual register data for any "value_regs", and once all that |
| // data is read, we will have enough data in our register context |
| // bytes for the value of this register |
| |
| // Invalidate this composite register first. |
| |
| for (uint32_t idx = 0; success; ++idx) { |
| const uint32_t reg = reg_info->value_regs[idx]; |
| if (reg == LLDB_INVALID_REGNUM) |
| break; |
| // We have a valid primordial register as our constituent. Grab the |
| // corresponding register info. |
| const RegisterInfo *value_reg_info = GetRegisterInfoAtIndex(reg); |
| if (value_reg_info == NULL) |
| success = false; |
| else |
| success = SetPrimordialRegister(value_reg_info, gdb_comm); |
| } |
| } else { |
| // This is an actual register, write it |
| success = SetPrimordialRegister(reg_info, gdb_comm); |
| } |
| |
| // Check if writing this register will invalidate any other register |
| // values? If so, invalidate them |
| if (reg_info->invalidate_regs) { |
| for (uint32_t idx = 0, reg = reg_info->invalidate_regs[0]; |
| reg != LLDB_INVALID_REGNUM; |
| reg = reg_info->invalidate_regs[++idx]) { |
| SetRegisterIsValid(reg, false); |
| } |
| } |
| |
| return success; |
| } |
| } else { |
| Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | |
| GDBR_LOG_PACKETS)); |
| if (log) { |
| if (log->GetVerbose()) { |
| StreamString strm; |
| gdb_comm.DumpHistory(strm); |
| log->Printf("error: failed to get packet sequence mutex, not sending " |
| "write register for \"%s\":\n%s", |
| reg_info->name, strm.GetData()); |
| } else |
| log->Printf("error: failed to get packet sequence mutex, not sending " |
| "write register for \"%s\"", |
| reg_info->name); |
| } |
| } |
| } |
| return false; |
| } |
| |
| bool GDBRemoteRegisterContext::ReadAllRegisterValues( |
| RegisterCheckpoint ®_checkpoint) { |
| ExecutionContext exe_ctx(CalculateThread()); |
| |
| Process *process = exe_ctx.GetProcessPtr(); |
| Thread *thread = exe_ctx.GetThreadPtr(); |
| if (process == NULL || thread == NULL) |
| return false; |
| |
| GDBRemoteCommunicationClient &gdb_comm( |
| ((ProcessGDBRemote *)process)->GetGDBRemote()); |
| |
| uint32_t save_id = 0; |
| if (gdb_comm.SaveRegisterState(thread->GetProtocolID(), save_id)) { |
| reg_checkpoint.SetID(save_id); |
| reg_checkpoint.GetData().reset(); |
| return true; |
| } else { |
| reg_checkpoint.SetID(0); // Invalid save ID is zero |
| return ReadAllRegisterValues(reg_checkpoint.GetData()); |
| } |
| } |
| |
| bool GDBRemoteRegisterContext::WriteAllRegisterValues( |
| const RegisterCheckpoint ®_checkpoint) { |
| uint32_t save_id = reg_checkpoint.GetID(); |
| if (save_id != 0) { |
| ExecutionContext exe_ctx(CalculateThread()); |
| |
| Process *process = exe_ctx.GetProcessPtr(); |
| Thread *thread = exe_ctx.GetThreadPtr(); |
| if (process == NULL || thread == NULL) |
| return false; |
| |
| GDBRemoteCommunicationClient &gdb_comm( |
| ((ProcessGDBRemote *)process)->GetGDBRemote()); |
| |
| return gdb_comm.RestoreRegisterState(m_thread.GetProtocolID(), save_id); |
| } else { |
| return WriteAllRegisterValues(reg_checkpoint.GetData()); |
| } |
| } |
| |
| bool GDBRemoteRegisterContext::ReadAllRegisterValues( |
| lldb::DataBufferSP &data_sp) { |
| ExecutionContext exe_ctx(CalculateThread()); |
| |
| Process *process = exe_ctx.GetProcessPtr(); |
| Thread *thread = exe_ctx.GetThreadPtr(); |
| if (process == NULL || thread == NULL) |
| return false; |
| |
| GDBRemoteCommunicationClient &gdb_comm( |
| ((ProcessGDBRemote *)process)->GetGDBRemote()); |
| |
| const bool use_g_packet = |
| gdb_comm.AvoidGPackets((ProcessGDBRemote *)process) == false; |
| |
| GDBRemoteClientBase::Lock lock(gdb_comm, false); |
| if (lock) { |
| if (gdb_comm.SyncThreadState(m_thread.GetProtocolID())) |
| InvalidateAllRegisters(); |
| |
| if (use_g_packet && |
| (data_sp = gdb_comm.ReadAllRegisters(m_thread.GetProtocolID()))) |
| return true; |
| |
| // We're going to read each register |
| // individually and store them as binary data in a buffer. |
| const RegisterInfo *reg_info; |
| |
| for (uint32_t i = 0; (reg_info = GetRegisterInfoAtIndex(i)) != NULL; i++) { |
| if (reg_info |
| ->value_regs) // skip registers that are slices of real registers |
| continue; |
| ReadRegisterBytes(reg_info, m_reg_data); |
| // ReadRegisterBytes saves the contents of the register in to the |
| // m_reg_data buffer |
| } |
| data_sp.reset(new DataBufferHeap(m_reg_data.GetDataStart(), |
| m_reg_info.GetRegisterDataByteSize())); |
| return true; |
| } else { |
| |
| Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | |
| GDBR_LOG_PACKETS)); |
| if (log) { |
| if (log->GetVerbose()) { |
| StreamString strm; |
| gdb_comm.DumpHistory(strm); |
| log->Printf("error: failed to get packet sequence mutex, not sending " |
| "read all registers:\n%s", |
| strm.GetData()); |
| } else |
| log->Printf("error: failed to get packet sequence mutex, not sending " |
| "read all registers"); |
| } |
| } |
| |
| data_sp.reset(); |
| return false; |
| } |
| |
| bool GDBRemoteRegisterContext::WriteAllRegisterValues( |
| const lldb::DataBufferSP &data_sp) { |
| if (!data_sp || data_sp->GetBytes() == NULL || data_sp->GetByteSize() == 0) |
| return false; |
| |
| ExecutionContext exe_ctx(CalculateThread()); |
| |
| Process *process = exe_ctx.GetProcessPtr(); |
| Thread *thread = exe_ctx.GetThreadPtr(); |
| if (process == NULL || thread == NULL) |
| return false; |
| |
| GDBRemoteCommunicationClient &gdb_comm( |
| ((ProcessGDBRemote *)process)->GetGDBRemote()); |
| |
| const bool use_g_packet = |
| gdb_comm.AvoidGPackets((ProcessGDBRemote *)process) == false; |
| |
| GDBRemoteClientBase::Lock lock(gdb_comm, false); |
| if (lock) { |
| // The data_sp contains the G response packet. |
| if (use_g_packet) { |
| if (gdb_comm.WriteAllRegisters( |
| m_thread.GetProtocolID(), |
| {data_sp->GetBytes(), size_t(data_sp->GetByteSize())})) |
| return true; |
| |
| uint32_t num_restored = 0; |
| // We need to manually go through all of the registers and restore them |
| // manually |
| DataExtractor restore_data(data_sp, m_reg_data.GetByteOrder(), |
| m_reg_data.GetAddressByteSize()); |
| |
| const RegisterInfo *reg_info; |
| |
| // The g packet contents may either include the slice registers |
| // (registers defined in terms of other registers, e.g. eax is a subset |
| // of rax) or not. The slice registers should NOT be in the g packet, |
| // but some implementations may incorrectly include them. |
| // |
| // If the slice registers are included in the packet, we must step over |
| // the slice registers when parsing the packet -- relying on the |
| // RegisterInfo byte_offset field would be incorrect. If the slice |
| // registers are not included, then using the byte_offset values into the |
| // data buffer is the best way to find individual register values. |
| |
| uint64_t size_including_slice_registers = 0; |
| uint64_t size_not_including_slice_registers = 0; |
| uint64_t size_by_highest_offset = 0; |
| |
| for (uint32_t reg_idx = 0; |
| (reg_info = GetRegisterInfoAtIndex(reg_idx)) != NULL; ++reg_idx) { |
| size_including_slice_registers += reg_info->byte_size; |
| if (reg_info->value_regs == NULL) |
| size_not_including_slice_registers += reg_info->byte_size; |
| if (reg_info->byte_offset >= size_by_highest_offset) |
| size_by_highest_offset = reg_info->byte_offset + reg_info->byte_size; |
| } |
| |
| bool use_byte_offset_into_buffer; |
| if (size_by_highest_offset == restore_data.GetByteSize()) { |
| // The size of the packet agrees with the highest offset: + size in the |
| // register file |
| use_byte_offset_into_buffer = true; |
| } else if (size_not_including_slice_registers == |
| restore_data.GetByteSize()) { |
| // The size of the packet is the same as concatenating all of the |
| // registers sequentially, skipping the slice registers |
| use_byte_offset_into_buffer = true; |
| } else if (size_including_slice_registers == restore_data.GetByteSize()) { |
| // The slice registers are present in the packet (when they shouldn't |
| // be). Don't try to use the RegisterInfo byte_offset into the |
| // restore_data, it will point to the wrong place. |
| use_byte_offset_into_buffer = false; |
| } else { |
| // None of our expected sizes match the actual g packet data we're |
| // looking at. The most conservative approach here is to use the |
| // running total byte offset. |
| use_byte_offset_into_buffer = false; |
| } |
| |
| // In case our register definitions don't include the correct offsets, |
| // keep track of the size of each reg & compute offset based on that. |
| uint32_t running_byte_offset = 0; |
| for (uint32_t reg_idx = 0; |
| (reg_info = GetRegisterInfoAtIndex(reg_idx)) != NULL; |
| ++reg_idx, running_byte_offset += reg_info->byte_size) { |
| // Skip composite aka slice registers (e.g. eax is a slice of rax). |
| if (reg_info->value_regs) |
| continue; |
| |
| const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; |
| |
| uint32_t register_offset; |
| if (use_byte_offset_into_buffer) { |
| register_offset = reg_info->byte_offset; |
| } else { |
| register_offset = running_byte_offset; |
| } |
| |
| const uint32_t reg_byte_size = reg_info->byte_size; |
| |
| const uint8_t *restore_src = |
| restore_data.PeekData(register_offset, reg_byte_size); |
| if (restore_src) { |
| SetRegisterIsValid(reg, false); |
| if (gdb_comm.WriteRegister( |
| m_thread.GetProtocolID(), |
| reg_info->kinds[eRegisterKindProcessPlugin], |
| {restore_src, reg_byte_size})) |
| ++num_restored; |
| } |
| } |
| return num_restored > 0; |
| } else { |
| // For the use_g_packet == false case, we're going to write each register |
| // individually. The data buffer is binary data in this case, instead of |
| // ascii characters. |
| |
| bool arm64_debugserver = false; |
| if (m_thread.GetProcess().get()) { |
| const ArchSpec &arch = |
| m_thread.GetProcess()->GetTarget().GetArchitecture(); |
| if (arch.IsValid() && arch.GetMachine() == llvm::Triple::aarch64 && |
| arch.GetTriple().getVendor() == llvm::Triple::Apple && |
| arch.GetTriple().getOS() == llvm::Triple::IOS) { |
| arm64_debugserver = true; |
| } |
| } |
| uint32_t num_restored = 0; |
| const RegisterInfo *reg_info; |
| for (uint32_t i = 0; (reg_info = GetRegisterInfoAtIndex(i)) != NULL; |
| i++) { |
| if (reg_info->value_regs) // skip registers that are slices of real |
| // registers |
| continue; |
| // Skip the fpsr and fpcr floating point status/control register |
| // writing to work around a bug in an older version of debugserver that |
| // would lead to register context corruption when writing fpsr/fpcr. |
| if (arm64_debugserver && (strcmp(reg_info->name, "fpsr") == 0 || |
| strcmp(reg_info->name, "fpcr") == 0)) { |
| continue; |
| } |
| |
| SetRegisterIsValid(reg_info, false); |
| if (gdb_comm.WriteRegister(m_thread.GetProtocolID(), |
| reg_info->kinds[eRegisterKindProcessPlugin], |
| {data_sp->GetBytes() + reg_info->byte_offset, |
| reg_info->byte_size})) |
| ++num_restored; |
| } |
| return num_restored > 0; |
| } |
| } else { |
| Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | |
| GDBR_LOG_PACKETS)); |
| if (log) { |
| if (log->GetVerbose()) { |
| StreamString strm; |
| gdb_comm.DumpHistory(strm); |
| log->Printf("error: failed to get packet sequence mutex, not sending " |
| "write all registers:\n%s", |
| strm.GetData()); |
| } else |
| log->Printf("error: failed to get packet sequence mutex, not sending " |
| "write all registers"); |
| } |
| } |
| return false; |
| } |
| |
| uint32_t GDBRemoteRegisterContext::ConvertRegisterKindToRegisterNumber( |
| lldb::RegisterKind kind, uint32_t num) { |
| return m_reg_info.ConvertRegisterKindToRegisterNumber(kind, num); |
| } |
| |
| void GDBRemoteDynamicRegisterInfo::HardcodeARMRegisters(bool from_scratch) { |
| // For Advanced SIMD and VFP register mapping. |
| static uint32_t g_d0_regs[] = {26, 27, LLDB_INVALID_REGNUM}; // (s0, s1) |
| static uint32_t g_d1_regs[] = {28, 29, LLDB_INVALID_REGNUM}; // (s2, s3) |
| static uint32_t g_d2_regs[] = {30, 31, LLDB_INVALID_REGNUM}; // (s4, s5) |
| static uint32_t g_d3_regs[] = {32, 33, LLDB_INVALID_REGNUM}; // (s6, s7) |
| static uint32_t g_d4_regs[] = {34, 35, LLDB_INVALID_REGNUM}; // (s8, s9) |
| static uint32_t g_d5_regs[] = {36, 37, LLDB_INVALID_REGNUM}; // (s10, s11) |
| static uint32_t g_d6_regs[] = {38, 39, LLDB_INVALID_REGNUM}; // (s12, s13) |
| static uint32_t g_d7_regs[] = {40, 41, LLDB_INVALID_REGNUM}; // (s14, s15) |
| static uint32_t g_d8_regs[] = {42, 43, LLDB_INVALID_REGNUM}; // (s16, s17) |
| static uint32_t g_d9_regs[] = {44, 45, LLDB_INVALID_REGNUM}; // (s18, s19) |
| static uint32_t g_d10_regs[] = {46, 47, LLDB_INVALID_REGNUM}; // (s20, s21) |
| static uint32_t g_d11_regs[] = {48, 49, LLDB_INVALID_REGNUM}; // (s22, s23) |
| static uint32_t g_d12_regs[] = {50, 51, LLDB_INVALID_REGNUM}; // (s24, s25) |
| static uint32_t g_d13_regs[] = {52, 53, LLDB_INVALID_REGNUM}; // (s26, s27) |
| static uint32_t g_d14_regs[] = {54, 55, LLDB_INVALID_REGNUM}; // (s28, s29) |
| static uint32_t g_d15_regs[] = {56, 57, LLDB_INVALID_REGNUM}; // (s30, s31) |
| static uint32_t g_q0_regs[] = { |
| 26, 27, 28, 29, LLDB_INVALID_REGNUM}; // (d0, d1) -> (s0, s1, s2, s3) |
| static uint32_t g_q1_regs[] = { |
| 30, 31, 32, 33, LLDB_INVALID_REGNUM}; // (d2, d3) -> (s4, s5, s6, s7) |
| static uint32_t g_q2_regs[] = { |
| 34, 35, 36, 37, LLDB_INVALID_REGNUM}; // (d4, d5) -> (s8, s9, s10, s11) |
| static uint32_t g_q3_regs[] = { |
| 38, 39, 40, 41, LLDB_INVALID_REGNUM}; // (d6, d7) -> (s12, s13, s14, s15) |
| static uint32_t g_q4_regs[] = { |
| 42, 43, 44, 45, LLDB_INVALID_REGNUM}; // (d8, d9) -> (s16, s17, s18, s19) |
| static uint32_t g_q5_regs[] = { |
| 46, 47, 48, 49, |
| LLDB_INVALID_REGNUM}; // (d10, d11) -> (s20, s21, s22, s23) |
| static uint32_t g_q6_regs[] = { |
| 50, 51, 52, 53, |
| LLDB_INVALID_REGNUM}; // (d12, d13) -> (s24, s25, s26, s27) |
| static uint32_t g_q7_regs[] = { |
| 54, 55, 56, 57, |
| LLDB_INVALID_REGNUM}; // (d14, d15) -> (s28, s29, s30, s31) |
| static uint32_t g_q8_regs[] = {59, 60, LLDB_INVALID_REGNUM}; // (d16, d17) |
| static uint32_t g_q9_regs[] = {61, 62, LLDB_INVALID_REGNUM}; // (d18, d19) |
| static uint32_t g_q10_regs[] = {63, 64, LLDB_INVALID_REGNUM}; // (d20, d21) |
| static uint32_t g_q11_regs[] = {65, 66, LLDB_INVALID_REGNUM}; // (d22, d23) |
| static uint32_t g_q12_regs[] = {67, 68, LLDB_INVALID_REGNUM}; // (d24, d25) |
| static uint32_t g_q13_regs[] = {69, 70, LLDB_INVALID_REGNUM}; // (d26, d27) |
| static uint32_t g_q14_regs[] = {71, 72, LLDB_INVALID_REGNUM}; // (d28, d29) |
| static uint32_t g_q15_regs[] = {73, 74, LLDB_INVALID_REGNUM}; // (d30, d31) |
| |
| // This is our array of composite registers, with each element coming from |
| // the above register mappings. |
| static uint32_t *g_composites[] = { |
| g_d0_regs, g_d1_regs, g_d2_regs, g_d3_regs, g_d4_regs, g_d5_regs, |
| g_d6_regs, g_d7_regs, g_d8_regs, g_d9_regs, g_d10_regs, g_d11_regs, |
| g_d12_regs, g_d13_regs, g_d14_regs, g_d15_regs, g_q0_regs, g_q1_regs, |
| g_q2_regs, g_q3_regs, g_q4_regs, g_q5_regs, g_q6_regs, g_q7_regs, |
| g_q8_regs, g_q9_regs, g_q10_regs, g_q11_regs, g_q12_regs, g_q13_regs, |
| g_q14_regs, g_q15_regs}; |
| |
| // clang-format off |
| static RegisterInfo g_register_infos[] = { |
| // NAME ALT SZ OFF ENCODING FORMAT EH_FRAME DWARF GENERIC PROCESS PLUGIN LLDB VALUE REGS INVALIDATE REGS SIZE EXPR SIZE LEN |
| // ====== ====== === === ============= ========== =================== =================== ====================== ============= ==== ========== =============== ========= ======== |
| { "r0", "arg1", 4, 0, eEncodingUint, eFormatHex, { ehframe_r0, dwarf_r0, LLDB_REGNUM_GENERIC_ARG1,0, 0 }, nullptr, nullptr, nullptr, 0 }, |
| { "r1", "arg2", 4, 0, eEncodingUint, eFormatHex, { ehframe_r1, dwarf_r1, LLDB_REGNUM_GENERIC_ARG2,1, 1 }, nullptr, nullptr, nullptr, 0 }, |
| { "r2", "arg3", 4, 0, eEncodingUint, eFormatHex, { ehframe_r2, dwarf_r2, LLDB_REGNUM_GENERIC_ARG3,2, 2 }, nullptr, nullptr, nullptr, 0 }, |
| { "r3", "arg4", 4, 0, eEncodingUint, eFormatHex, { ehframe_r3, dwarf_r3, LLDB_REGNUM_GENERIC_ARG4,3, 3 }, nullptr, nullptr, nullptr, 0 }, |
| { "r4", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r4, dwarf_r4, LLDB_INVALID_REGNUM, 4, 4 }, nullptr, nullptr, nullptr, 0 }, |
| { "r5", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r5, dwarf_r5, LLDB_INVALID_REGNUM, 5, 5 }, nullptr, nullptr, nullptr, 0 }, |
| { "r6", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r6, dwarf_r6, LLDB_INVALID_REGNUM, 6, 6 }, nullptr, nullptr, nullptr, 0 }, |
| { "r7", "fp", 4, 0, eEncodingUint, eFormatHex, { ehframe_r7, dwarf_r7, LLDB_REGNUM_GENERIC_FP, 7, 7 }, nullptr, nullptr, nullptr, 0 }, |
| { "r8", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r8, dwarf_r8, LLDB_INVALID_REGNUM, 8, 8 }, nullptr, nullptr, nullptr, 0 }, |
| { "r9", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r9, dwarf_r9, LLDB_INVALID_REGNUM, 9, 9 }, nullptr, nullptr, nullptr, 0 }, |
| { "r10", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r10, dwarf_r10, LLDB_INVALID_REGNUM, 10, 10 }, nullptr, nullptr, nullptr, 0 }, |
| { "r11", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r11, dwarf_r11, LLDB_INVALID_REGNUM, 11, 11 }, nullptr, nullptr, nullptr, 0 }, |
| { "r12", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r12, dwarf_r12, LLDB_INVALID_REGNUM, 12, 12 }, nullptr, nullptr, nullptr, 0 }, |
| { "sp", "r13", 4, 0, eEncodingUint, eFormatHex, { ehframe_sp, dwarf_sp, LLDB_REGNUM_GENERIC_SP, 13, 13 }, nullptr, nullptr, nullptr, 0 }, |
| { "lr", "r14", 4, 0, eEncodingUint, eFormatHex, { ehframe_lr, dwarf_lr, LLDB_REGNUM_GENERIC_RA, 14, 14 }, nullptr, nullptr, nullptr, 0 }, |
| { "pc", "r15", 4, 0, eEncodingUint, eFormatHex, { ehframe_pc, dwarf_pc, LLDB_REGNUM_GENERIC_PC, 15, 15 }, nullptr, nullptr, nullptr, 0 }, |
| { "f0", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 16, 16 }, nullptr, nullptr, nullptr, 0 }, |
| { "f1", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 17, 17 }, nullptr, nullptr, nullptr, 0 }, |
| { "f2", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 18, 18 }, nullptr, nullptr, nullptr, 0 }, |
| { "f3", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 19, 19 }, nullptr, nullptr, nullptr, 0 }, |
| { "f4", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 20, 20 }, nullptr, nullptr, nullptr, 0 }, |
| { "f5", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 21, 21 }, nullptr, nullptr, nullptr, 0 }, |
| { "f6", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 22, 22 }, nullptr, nullptr, nullptr, 0 }, |
| { "f7", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 23, 23 }, nullptr, nullptr, nullptr, 0 }, |
| { "fps", nullptr, 4, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 24, 24 }, nullptr, nullptr, nullptr, 0 }, |
| { "cpsr","flags", 4, 0, eEncodingUint, eFormatHex, { ehframe_cpsr, dwarf_cpsr, LLDB_INVALID_REGNUM, 25, 25 }, nullptr, nullptr, nullptr, 0 }, |
| { "s0", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s0, LLDB_INVALID_REGNUM, 26, 26 }, nullptr, nullptr, nullptr, 0 }, |
| { "s1", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s1, LLDB_INVALID_REGNUM, 27, 27 }, nullptr, nullptr, nullptr, 0 }, |
| { "s2", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s2, LLDB_INVALID_REGNUM, 28, 28 }, nullptr, nullptr, nullptr, 0 }, |
| { "s3", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s3, LLDB_INVALID_REGNUM, 29, 29 }, nullptr, nullptr, nullptr, 0 }, |
| { "s4", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s4, LLDB_INVALID_REGNUM, 30, 30 }, nullptr, nullptr, nullptr, 0 }, |
| { "s5", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s5, LLDB_INVALID_REGNUM, 31, 31 }, nullptr, nullptr, nullptr, 0 }, |
| { "s6", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s6, LLDB_INVALID_REGNUM, 32, 32 }, nullptr, nullptr, nullptr, 0 }, |
| { "s7", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s7, LLDB_INVALID_REGNUM, 33, 33 }, nullptr, nullptr, nullptr, 0 }, |
| { "s8", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s8, LLDB_INVALID_REGNUM, 34, 34 }, nullptr, nullptr, nullptr, 0 }, |
| { "s9", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s9, LLDB_INVALID_REGNUM, 35, 35 }, nullptr, nullptr, nullptr, 0 }, |
| { "s10", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s10, LLDB_INVALID_REGNUM, 36, 36 }, nullptr, nullptr, nullptr, 0 }, |
| { "s11", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s11, LLDB_INVALID_REGNUM, 37, 37 }, nullptr, nullptr, nullptr, 0 }, |
| { "s12", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s12, LLDB_INVALID_REGNUM, 38, 38 }, nullptr, nullptr, nullptr, 0 }, |
| { "s13", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s13, LLDB_INVALID_REGNUM, 39, 39 }, nullptr, nullptr, nullptr, 0 }, |
| { "s14", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s14, LLDB_INVALID_REGNUM, 40, 40 }, nullptr, nullptr, nullptr, 0 }, |
| { "s15", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s15, LLDB_INVALID_REGNUM, 41, 41 }, nullptr, nullptr, nullptr, 0 }, |
| { "s16", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s16, LLDB_INVALID_REGNUM, 42, 42 }, nullptr, nullptr, nullptr, 0 }, |
| { "s17", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s17, LLDB_INVALID_REGNUM, 43, 43 }, nullptr, nullptr, nullptr, 0 }, |
| { "s18", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s18, LLDB_INVALID_REGNUM, 44, 44 }, nullptr, nullptr, nullptr, 0 }, |
| { "s19", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s19, LLDB_INVALID_REGNUM, 45, 45 }, nullptr, nullptr, nullptr, 0 }, |
| { "s20", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s20, LLDB_INVALID_REGNUM, 46, 46 }, nullptr, nullptr, nullptr, 0 }, |
| { "s21", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s21, LLDB_INVALID_REGNUM, 47, 47 }, nullptr, nullptr, nullptr, 0 }, |
| { "s22", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s22, LLDB_INVALID_REGNUM, 48, 48 }, nullptr, nullptr, nullptr, 0 }, |
| { "s23", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s23, LLDB_INVALID_REGNUM, 49, 49 }, nullptr, nullptr, nullptr, 0 }, |
| { "s24", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s24, LLDB_INVALID_REGNUM, 50, 50 }, nullptr, nullptr, nullptr, 0 }, |
| { "s25", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s25, LLDB_INVALID_REGNUM, 51, 51 }, nullptr, nullptr, nullptr, 0 }, |
| { "s26", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s26, LLDB_INVALID_REGNUM, 52, 52 }, nullptr, nullptr, nullptr, 0 }, |
| { "s27", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s27, LLDB_INVALID_REGNUM, 53, 53 }, nullptr, nullptr, nullptr, 0 }, |
| { "s28", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s28, LLDB_INVALID_REGNUM, 54, 54 }, nullptr, nullptr, nullptr, 0 }, |
| { "s29", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s29, LLDB_INVALID_REGNUM, 55, 55 }, nullptr, nullptr, nullptr, 0 }, |
| { "s30", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s30, LLDB_INVALID_REGNUM, 56, 56 }, nullptr, nullptr, nullptr, 0 }, |
| { "s31", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s31, LLDB_INVALID_REGNUM, 57, 57 }, nullptr, nullptr, nullptr, 0 }, |
| { "fpscr",nullptr, 4, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 58, 58 }, nullptr, nullptr, nullptr, 0 }, |
| { "d16", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d16, LLDB_INVALID_REGNUM, 59, 59 }, nullptr, nullptr, nullptr, 0 }, |
| { "d17", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d17, LLDB_INVALID_REGNUM, 60, 60 }, nullptr, nullptr, nullptr, 0 }, |
| { "d18", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d18, LLDB_INVALID_REGNUM, 61, 61 }, nullptr, nullptr, nullptr, 0 }, |
| { "d19", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d19, LLDB_INVALID_REGNUM, 62, 62 }, nullptr, nullptr, nullptr, 0 }, |
| { "d20", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d20, LLDB_INVALID_REGNUM, 63, 63 }, nullptr, nullptr, nullptr, 0 }, |
| { "d21", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d21, LLDB_INVALID_REGNUM, 64, 64 }, nullptr, nullptr, nullptr, 0 }, |
| { "d22", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d22, LLDB_INVALID_REGNUM, 65, 65 }, nullptr, nullptr, nullptr, 0 }, |
| { "d23", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d23, LLDB_INVALID_REGNUM, 66, 66 }, nullptr, nullptr, nullptr, 0 }, |
| { "d24", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d24, LLDB_INVALID_REGNUM, 67, 67 }, nullptr, nullptr, nullptr, 0 }, |
| { "d25", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d25, LLDB_INVALID_REGNUM, 68, 68 }, nullptr, nullptr, nullptr, 0 }, |
| { "d26", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d26, LLDB_INVALID_REGNUM, 69, 69 }, nullptr, nullptr, nullptr, 0 }, |
| { "d27", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d27, LLDB_INVALID_REGNUM, 70, 70 }, nullptr, nullptr, nullptr, 0 }, |
| { "d28", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d28, LLDB_INVALID_REGNUM, 71, 71 }, nullptr, nullptr, nullptr, 0 }, |
| { "d29", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d29, LLDB_INVALID_REGNUM, 72, 72 }, nullptr, nullptr, nullptr, 0 }, |
| { "d30", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d30, LLDB_INVALID_REGNUM, 73, 73 }, nullptr, nullptr, nullptr, 0 }, |
| { "d31", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d31, LLDB_INVALID_REGNUM, 74, 74 }, nullptr, nullptr, nullptr, 0 }, |
| { "d0", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d0, LLDB_INVALID_REGNUM, 75, 75 }, g_d0_regs, nullptr, nullptr, 0 }, |
| { "d1", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d1, LLDB_INVALID_REGNUM, 76, 76 }, g_d1_regs, nullptr, nullptr, 0 }, |
| { "d2", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d2, LLDB_INVALID_REGNUM, 77, 77 }, g_d2_regs, nullptr, nullptr, 0 }, |
| { "d3", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d3, LLDB_INVALID_REGNUM, 78, 78 }, g_d3_regs, nullptr, nullptr, 0 }, |
| { "d4", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d4, LLDB_INVALID_REGNUM, 79, 79 }, g_d4_regs, nullptr, nullptr, 0 }, |
| { "d5", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d5, LLDB_INVALID_REGNUM, 80, 80 }, g_d5_regs, nullptr, nullptr, 0 }, |
| { "d6", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d6, LLDB_INVALID_REGNUM, 81, 81 }, g_d6_regs, nullptr, nullptr, 0 }, |
| { "d7", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d7, LLDB_INVALID_REGNUM, 82, 82 }, g_d7_regs, nullptr, nullptr, 0 }, |
| { "d8", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d8, LLDB_INVALID_REGNUM, 83, 83 }, g_d8_regs, nullptr, nullptr, 0 }, |
| { "d9", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d9, LLDB_INVALID_REGNUM, 84, 84 }, g_d9_regs, nullptr, nullptr, 0 }, |
| { "d10", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d10, LLDB_INVALID_REGNUM, 85, 85 }, g_d10_regs, nullptr, nullptr, 0 }, |
| { "d11", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d11, LLDB_INVALID_REGNUM, 86, 86 }, g_d11_regs, nullptr, nullptr, 0 }, |
| { "d12", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d12, LLDB_INVALID_REGNUM, 87, 87 }, g_d12_regs, nullptr, nullptr, 0 }, |
| { "d13", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d13, LLDB_INVALID_REGNUM, 88, 88 }, g_d13_regs, nullptr, nullptr, 0 }, |
| { "d14", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d14, LLDB_INVALID_REGNUM, 89, 89 }, g_d14_regs, nullptr, nullptr, 0 }, |
| { "d15", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d15, LLDB_INVALID_REGNUM, 90, 90 }, g_d15_regs, nullptr, nullptr, 0 }, |
| { "q0", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q0, LLDB_INVALID_REGNUM, 91, 91 }, g_q0_regs, nullptr, nullptr, 0 }, |
| { "q1", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q1, LLDB_INVALID_REGNUM, 92, 92 }, g_q1_regs, nullptr, nullptr, 0 }, |
| { "q2", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q2, LLDB_INVALID_REGNUM, 93, 93 }, g_q2_regs, nullptr, nullptr, 0 }, |
| { "q3", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q3, LLDB_INVALID_REGNUM, 94, 94 }, g_q3_regs, nullptr, nullptr, 0 }, |
| { "q4", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q4, LLDB_INVALID_REGNUM, 95, 95 }, g_q4_regs, nullptr, nullptr, 0 }, |
| { "q5", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q5, LLDB_INVALID_REGNUM, 96, 96 }, g_q5_regs, nullptr, nullptr, 0 }, |
| { "q6", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q6, LLDB_INVALID_REGNUM, 97, 97 }, g_q6_regs, nullptr, nullptr, 0 }, |
| { "q7", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q7, LLDB_INVALID_REGNUM, 98, 98 }, g_q7_regs, nullptr, nullptr, 0 }, |
| { "q8", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q8, LLDB_INVALID_REGNUM, 99, 99 }, g_q8_regs, nullptr, nullptr, 0 }, |
| { "q9", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q9, LLDB_INVALID_REGNUM, 100, 100 }, g_q9_regs, nullptr, nullptr, 0 }, |
| { "q10", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q10, LLDB_INVALID_REGNUM, 101, 101 }, g_q10_regs, nullptr, nullptr, 0 }, |
| { "q11", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q11, LLDB_INVALID_REGNUM, 102, 102 }, g_q11_regs, nullptr, nullptr, 0 }, |
| { "q12", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q12, LLDB_INVALID_REGNUM, 103, 103 }, g_q12_regs, nullptr, nullptr, 0 }, |
| { "q13", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q13, LLDB_INVALID_REGNUM, 104, 104 }, g_q13_regs, nullptr, nullptr, 0 }, |
| { "q14", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q14, LLDB_INVALID_REGNUM, 105, 105 }, g_q14_regs, nullptr, nullptr, 0 }, |
| { "q15", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q15, LLDB_INVALID_REGNUM, 106, 106 }, g_q15_regs, nullptr, nullptr, 0 } |
| }; |
| // clang-format on |
| |
| static const uint32_t num_registers = llvm::array_lengthof(g_register_infos); |
| static ConstString gpr_reg_set("General Purpose Registers"); |
| static ConstString sfp_reg_set("Software Floating Point Registers"); |
| static ConstString vfp_reg_set("Floating Point Registers"); |
| size_t i; |
| if (from_scratch) { |
| // Calculate the offsets of the registers |
| // Note that the layout of the "composite" registers (d0-d15 and q0-q15) |
| // which comes after the "primordial" registers is important. This enables |
| // us to calculate the offset of the composite register by using the offset |
| // of its first primordial register. For example, to calculate the offset |
| // of q0, use s0's offset. |
| if (g_register_infos[2].byte_offset == 0) { |
| uint32_t byte_offset = 0; |
| for (i = 0; i < num_registers; ++i) { |
| // For primordial registers, increment the byte_offset by the byte_size |
| // to arrive at the byte_offset for the next register. Otherwise, we |
| // have a composite register whose offset can be calculated by |
| // consulting the offset of its first primordial register. |
| if (!g_register_infos[i].value_regs) { |
| g_register_infos[i].byte_offset = byte_offset; |
| byte_offset += g_register_infos[i].byte_size; |
| } else { |
| const uint32_t first_primordial_reg = |
| g_register_infos[i].value_regs[0]; |
| g_register_infos[i].byte_offset = |
| g_register_infos[first_primordial_reg].byte_offset; |
| } |
| } |
| } |
| for (i = 0; i < num_registers; ++i) { |
| ConstString name; |
| ConstString alt_name; |
| if (g_register_infos[i].name && g_register_infos[i].name[0]) |
| name.SetCString(g_register_infos[i].name); |
| if (g_register_infos[i].alt_name && g_register_infos[i].alt_name[0]) |
| alt_name.SetCString(g_register_infos[i].alt_name); |
| |
| if (i <= 15 || i == 25) |
| AddRegister(g_register_infos[i], name, alt_name, gpr_reg_set); |
| else if (i <= 24) |
| AddRegister(g_register_infos[i], name, alt_name, sfp_reg_set); |
| else |
| AddRegister(g_register_infos[i], name, alt_name, vfp_reg_set); |
| } |
| } else { |
| // Add composite registers to our primordial registers, then. |
| const size_t num_composites = llvm::array_lengthof(g_composites); |
| const size_t num_dynamic_regs = GetNumRegisters(); |
| const size_t num_common_regs = num_registers - num_composites; |
| RegisterInfo *g_comp_register_infos = g_register_infos + num_common_regs; |
| |
| // First we need to validate that all registers that we already have match |
| // the non composite regs. If so, then we can add the registers, else we |
| // need to bail |
| bool match = true; |
| if (num_dynamic_regs == num_common_regs) { |
| for (i = 0; match && i < num_dynamic_regs; ++i) { |
| // Make sure all register names match |
| if (m_regs[i].name && g_register_infos[i].name) { |
| if (strcmp(m_regs[i].name, g_register_infos[i].name)) { |
| match = false; |
| break; |
| } |
| } |
| |
| // Make sure all register byte sizes match |
| if (m_regs[i].byte_size != g_register_infos[i].byte_size) { |
| match = false; |
| break; |
| } |
| } |
| } else { |
| // Wrong number of registers. |
| match = false; |
| } |
| // If "match" is true, then we can add extra registers. |
| if (match) { |
| for (i = 0; i < num_composites; ++i) { |
| ConstString name; |
| ConstString alt_name; |
| const uint32_t first_primordial_reg = |
| g_comp_register_infos[i].value_regs[0]; |
| const char *reg_name = g_register_infos[first_primordial_reg].name; |
| if (reg_name && reg_name[0]) { |
| for (uint32_t j = 0; j < num_dynamic_regs; ++j) { |
| const RegisterInfo *reg_info = GetRegisterInfoAtIndex(j); |
| // Find a matching primordial register info entry. |
| if (reg_info && reg_info->name && |
| ::strcasecmp(reg_info->name, reg_name) == 0) { |
| // The name matches the existing primordial entry. Find and |
| // assign the offset, and then add this composite register entry. |
| g_comp_register_infos[i].byte_offset = reg_info->byte_offset; |
| name.SetCString(g_comp_register_infos[i].name); |
| AddRegister(g_comp_register_infos[i], name, alt_name, |
| vfp_reg_set); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
