diff options
Diffstat (limited to 'gnu/llvm/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp')
| -rw-r--r-- | gnu/llvm/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp | 986 |
1 files changed, 986 insertions, 0 deletions
diff --git a/gnu/llvm/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp b/gnu/llvm/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp new file mode 100644 index 00000000000..ec1a54afd72 --- /dev/null +++ b/gnu/llvm/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp @@ -0,0 +1,986 @@ +//===-- GDBRemoteRegisterContext.cpp ----------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "GDBRemoteRegisterContext.h" + +#include "lldb/Target/ExecutionContext.h" +#include "lldb/Target/Target.h" +#include "lldb/Utility/DataBufferHeap.h" +#include "lldb/Utility/DataExtractor.h" +#include "lldb/Utility/RegisterValue.h" +#include "lldb/Utility/Scalar.h" +#include "lldb/Utility/StreamString.h" +#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" + +#include <memory> + +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, + bool write_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), + m_write_all_at_once(write_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 uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; + if (m_reg_valid[reg] == false) + return false; + 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 == nullptr) + 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 == nullptr) + 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 == nullptr) + 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 == nullptr || thread == nullptr) + 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; + } else if (buffer_sp->GetByteSize() > 0) { + const int regcount = m_reg_info.GetNumRegisters(); + for (int i = 0; i < regcount; i++) { + struct RegisterInfo *reginfo = m_reg_info.GetRegisterInfoAtIndex(i); + if (reginfo->byte_offset + reginfo->byte_size + <= buffer_sp->GetByteSize()) { + m_reg_valid[i] = true; + } else { + m_reg_valid[i] = false; + } + } + return true; + } else { + Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | + GDBR_LOG_PACKETS)); + LLDB_LOGF( + log, + "error: GDBRemoteRegisterContext::ReadRegisterBytes tried " + "to read the " + "entire register context at once, expected at least %" PRId64 + " bytes " + "but only got %" PRId64 " bytes.", + m_reg_data.GetByteSize(), buffer_sp->GetByteSize()); + } + } + 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 == nullptr) + 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) { + assert(m_reg_data.GetByteSize() >= + reg_info->byte_offset + reg_info->byte_size); + // 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 == nullptr || thread == nullptr) + return false; + + GDBRemoteCommunicationClient &gdb_comm( + ((ProcessGDBRemote *)process)->GetGDBRemote()); + + assert(m_reg_data.GetByteSize() >= + reg_info->byte_offset + reg_info->byte_size); + + // 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 == nullptr) + 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_write_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 == nullptr) + 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); + LLDB_LOGF(log, + "error: failed to get packet sequence mutex, not sending " + "write register for \"%s\":\n%s", + reg_info->name, strm.GetData()); + } else + LLDB_LOGF(log, + "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 == nullptr || thread == nullptr) + 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 == nullptr || thread == nullptr) + 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 == nullptr || thread == nullptr) + return false; + + GDBRemoteCommunicationClient &gdb_comm( + ((ProcessGDBRemote *)process)->GetGDBRemote()); + + const bool use_g_packet = + !gdb_comm.AvoidGPackets((ProcessGDBRemote *)process); + + 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)) != nullptr; + 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 = std::make_shared<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); + LLDB_LOGF(log, + "error: failed to get packet sequence mutex, not sending " + "read all registers:\n%s", + strm.GetData()); + } else + LLDB_LOGF(log, + "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() == nullptr || data_sp->GetByteSize() == 0) + return false; + + ExecutionContext exe_ctx(CalculateThread()); + + Process *process = exe_ctx.GetProcessPtr(); + Thread *thread = exe_ctx.GetThreadPtr(); + if (process == nullptr || thread == nullptr) + return false; + + GDBRemoteCommunicationClient &gdb_comm( + ((ProcessGDBRemote *)process)->GetGDBRemote()); + + const bool use_g_packet = + !gdb_comm.AvoidGPackets((ProcessGDBRemote *)process); + + 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)) != nullptr; ++reg_idx) { + size_including_slice_registers += reg_info->byte_size; + if (reg_info->value_regs == nullptr) + 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)) != nullptr; + ++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.GetMachine() == llvm::Triple::aarch64_32) && + 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)) != nullptr; + 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); + LLDB_LOGF(log, + "error: failed to get packet sequence mutex, not sending " + "write all registers:\n%s", + strm.GetData()); + } else + LLDB_LOGF(log, + "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); + } + } + } + } + } + } +} |