GDBRemoteRegisterContext.cpp revision 353358
1254721Semaste//===-- GDBRemoteRegisterContext.cpp ----------------------------*- C++ -*-===// 2254721Semaste// 3353358Sdim// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4353358Sdim// See https://llvm.org/LICENSE.txt for license information. 5353358Sdim// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6254721Semaste// 7254721Semaste//===----------------------------------------------------------------------===// 8254721Semaste 9254721Semaste#include "GDBRemoteRegisterContext.h" 10254721Semaste 11254721Semaste#include "lldb/Target/ExecutionContext.h" 12276479Sdim#include "lldb/Target/Target.h" 13321369Sdim#include "lldb/Utility/DataBufferHeap.h" 14321369Sdim#include "lldb/Utility/DataExtractor.h" 15344779Sdim#include "lldb/Utility/RegisterValue.h" 16344779Sdim#include "lldb/Utility/Scalar.h" 17321369Sdim#include "lldb/Utility/StreamString.h" 18254721Semaste#include "ProcessGDBRemote.h" 19254721Semaste#include "ProcessGDBRemoteLog.h" 20254721Semaste#include "ThreadGDBRemote.h" 21254721Semaste#include "Utility/ARM_DWARF_Registers.h" 22296417Sdim#include "Utility/ARM_ehframe_Registers.h" 23341825Sdim#include "lldb/Utility/StringExtractorGDBRemote.h" 24254721Semaste 25353358Sdim#include <memory> 26353358Sdim 27254721Semasteusing namespace lldb; 28254721Semasteusing namespace lldb_private; 29288943Sdimusing namespace lldb_private::process_gdb_remote; 30254721Semaste 31254721Semaste// GDBRemoteRegisterContext constructor 32314564SdimGDBRemoteRegisterContext::GDBRemoteRegisterContext( 33314564Sdim ThreadGDBRemote &thread, uint32_t concrete_frame_idx, 34314564Sdim GDBRemoteDynamicRegisterInfo ®_info, bool read_all_at_once) 35314564Sdim : RegisterContext(thread, concrete_frame_idx), m_reg_info(reg_info), 36314564Sdim m_reg_valid(), m_reg_data(), m_read_all_at_once(read_all_at_once) { 37341825Sdim // Resize our vector of bools to contain one bool for every register. We will 38341825Sdim // use these boolean values to know when a register value is valid in 39341825Sdim // m_reg_data. 40314564Sdim m_reg_valid.resize(reg_info.GetNumRegisters()); 41254721Semaste 42314564Sdim // Make a heap based buffer that is big enough to store all registers 43314564Sdim DataBufferSP reg_data_sp( 44314564Sdim new DataBufferHeap(reg_info.GetRegisterDataByteSize(), 0)); 45314564Sdim m_reg_data.SetData(reg_data_sp); 46314564Sdim m_reg_data.SetByteOrder(thread.GetProcess()->GetByteOrder()); 47254721Semaste} 48254721Semaste 49254721Semaste// Destructor 50314564SdimGDBRemoteRegisterContext::~GDBRemoteRegisterContext() {} 51254721Semaste 52314564Sdimvoid GDBRemoteRegisterContext::InvalidateAllRegisters() { 53314564Sdim SetAllRegisterValid(false); 54254721Semaste} 55254721Semaste 56314564Sdimvoid GDBRemoteRegisterContext::SetAllRegisterValid(bool b) { 57314564Sdim std::vector<bool>::iterator pos, end = m_reg_valid.end(); 58314564Sdim for (pos = m_reg_valid.begin(); pos != end; ++pos) 59314564Sdim *pos = b; 60254721Semaste} 61254721Semaste 62314564Sdimsize_t GDBRemoteRegisterContext::GetRegisterCount() { 63314564Sdim return m_reg_info.GetNumRegisters(); 64254721Semaste} 65254721Semaste 66254721Semasteconst RegisterInfo * 67314564SdimGDBRemoteRegisterContext::GetRegisterInfoAtIndex(size_t reg) { 68314564Sdim RegisterInfo *reg_info = m_reg_info.GetRegisterInfoAtIndex(reg); 69309124Sdim 70314564Sdim if (reg_info && reg_info->dynamic_size_dwarf_expr_bytes) { 71314564Sdim const ArchSpec &arch = m_thread.GetProcess()->GetTarget().GetArchitecture(); 72314564Sdim uint8_t reg_size = UpdateDynamicRegisterSize(arch, reg_info); 73314564Sdim reg_info->byte_size = reg_size; 74314564Sdim } 75314564Sdim return reg_info; 76254721Semaste} 77254721Semaste 78314564Sdimsize_t GDBRemoteRegisterContext::GetRegisterSetCount() { 79314564Sdim return m_reg_info.GetNumRegisterSets(); 80254721Semaste} 81254721Semaste 82314564Sdimconst RegisterSet *GDBRemoteRegisterContext::GetRegisterSet(size_t reg_set) { 83314564Sdim return m_reg_info.GetRegisterSet(reg_set); 84314564Sdim} 85254721Semaste 86314564Sdimbool GDBRemoteRegisterContext::ReadRegister(const RegisterInfo *reg_info, 87314564Sdim RegisterValue &value) { 88314564Sdim // Read the register 89314564Sdim if (ReadRegisterBytes(reg_info, m_reg_data)) { 90314564Sdim const bool partial_data_ok = false; 91321369Sdim Status error(value.SetValueFromData( 92321369Sdim reg_info, m_reg_data, reg_info->byte_offset, partial_data_ok)); 93314564Sdim return error.Success(); 94314564Sdim } 95314564Sdim return false; 96254721Semaste} 97254721Semaste 98314564Sdimbool GDBRemoteRegisterContext::PrivateSetRegisterValue( 99314564Sdim uint32_t reg, llvm::ArrayRef<uint8_t> data) { 100314564Sdim const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg); 101353358Sdim if (reg_info == nullptr) 102254721Semaste return false; 103254721Semaste 104314564Sdim // Invalidate if needed 105314564Sdim InvalidateIfNeeded(false); 106254721Semaste 107314564Sdim const size_t reg_byte_size = reg_info->byte_size; 108314564Sdim memcpy(const_cast<uint8_t *>( 109314564Sdim m_reg_data.PeekData(reg_info->byte_offset, reg_byte_size)), 110314564Sdim data.data(), std::min(data.size(), reg_byte_size)); 111314564Sdim bool success = data.size() >= reg_byte_size; 112314564Sdim if (success) { 113314564Sdim SetRegisterIsValid(reg, true); 114314564Sdim } else if (data.size() > 0) { 115341825Sdim // Only set register is valid to false if we copied some bytes, else leave 116341825Sdim // it as it was. 117314564Sdim SetRegisterIsValid(reg, false); 118314564Sdim } 119314564Sdim return success; 120254721Semaste} 121254721Semaste 122314564Sdimbool GDBRemoteRegisterContext::PrivateSetRegisterValue(uint32_t reg, 123314564Sdim uint64_t new_reg_val) { 124314564Sdim const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg); 125353358Sdim if (reg_info == nullptr) 126314564Sdim return false; 127296417Sdim 128314564Sdim // Early in process startup, we can get a thread that has an invalid byte 129341825Sdim // order because the process hasn't been completely set up yet (see the ctor 130341825Sdim // where the byte order is setfrom the process). If that's the case, we 131341825Sdim // can't set the value here. 132314564Sdim if (m_reg_data.GetByteOrder() == eByteOrderInvalid) { 133314564Sdim return false; 134314564Sdim } 135296417Sdim 136314564Sdim // Invalidate if needed 137314564Sdim InvalidateIfNeeded(false); 138296417Sdim 139314564Sdim DataBufferSP buffer_sp(new DataBufferHeap(&new_reg_val, sizeof(new_reg_val))); 140314564Sdim DataExtractor data(buffer_sp, endian::InlHostByteOrder(), sizeof(void *)); 141296417Sdim 142314564Sdim // If our register context and our register info disagree, which should never 143341825Sdim // happen, don't overwrite past the end of the buffer. 144314564Sdim if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 145314564Sdim return false; 146296417Sdim 147314564Sdim // Grab a pointer to where we are going to put this register 148314564Sdim uint8_t *dst = const_cast<uint8_t *>( 149314564Sdim m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size)); 150296417Sdim 151353358Sdim if (dst == nullptr) 152314564Sdim return false; 153296417Sdim 154314564Sdim if (data.CopyByteOrderedData(0, // src offset 155314564Sdim reg_info->byte_size, // src length 156314564Sdim dst, // dst 157314564Sdim reg_info->byte_size, // dst length 158314564Sdim m_reg_data.GetByteOrder())) // dst byte order 159314564Sdim { 160314564Sdim SetRegisterIsValid(reg, true); 161314564Sdim return true; 162314564Sdim } 163314564Sdim return false; 164296417Sdim} 165296417Sdim 166254721Semaste// Helper function for GDBRemoteRegisterContext::ReadRegisterBytes(). 167314564Sdimbool GDBRemoteRegisterContext::GetPrimordialRegister( 168314564Sdim const RegisterInfo *reg_info, GDBRemoteCommunicationClient &gdb_comm) { 169314564Sdim const uint32_t lldb_reg = reg_info->kinds[eRegisterKindLLDB]; 170314564Sdim const uint32_t remote_reg = reg_info->kinds[eRegisterKindProcessPlugin]; 171327952Sdim 172314564Sdim if (DataBufferSP buffer_sp = 173314564Sdim gdb_comm.ReadRegister(m_thread.GetProtocolID(), remote_reg)) 174314564Sdim return PrivateSetRegisterValue( 175314564Sdim lldb_reg, llvm::ArrayRef<uint8_t>(buffer_sp->GetBytes(), 176314564Sdim buffer_sp->GetByteSize())); 177314564Sdim return false; 178254721Semaste} 179258884Semaste 180314564Sdimbool GDBRemoteRegisterContext::ReadRegisterBytes(const RegisterInfo *reg_info, 181314564Sdim DataExtractor &data) { 182314564Sdim ExecutionContext exe_ctx(CalculateThread()); 183254721Semaste 184314564Sdim Process *process = exe_ctx.GetProcessPtr(); 185314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 186353358Sdim if (process == nullptr || thread == nullptr) 187314564Sdim return false; 188254721Semaste 189314564Sdim GDBRemoteCommunicationClient &gdb_comm( 190314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 191254721Semaste 192314564Sdim InvalidateIfNeeded(false); 193254721Semaste 194314564Sdim const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 195254721Semaste 196314564Sdim if (!GetRegisterIsValid(reg)) { 197314564Sdim if (m_read_all_at_once) { 198314564Sdim if (DataBufferSP buffer_sp = 199314564Sdim gdb_comm.ReadAllRegisters(m_thread.GetProtocolID())) { 200314564Sdim memcpy(const_cast<uint8_t *>(m_reg_data.GetDataStart()), 201314564Sdim buffer_sp->GetBytes(), 202314564Sdim std::min(buffer_sp->GetByteSize(), m_reg_data.GetByteSize())); 203314564Sdim if (buffer_sp->GetByteSize() >= m_reg_data.GetByteSize()) { 204314564Sdim SetAllRegisterValid(true); 205314564Sdim return true; 206353358Sdim } else { 207353358Sdim Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 208353358Sdim GDBR_LOG_PACKETS)); 209353358Sdim if (log) 210353358Sdim log->Printf ("error: GDBRemoteRegisterContext::ReadRegisterBytes tried to read the " 211353358Sdim "entire register context at once, expected at least %" PRId64 " bytes " 212353358Sdim "but only got %" PRId64 " bytes.", m_reg_data.GetByteSize(), 213353358Sdim buffer_sp->GetByteSize()); 214258884Semaste } 215314564Sdim } 216314564Sdim return false; 217314564Sdim } 218314564Sdim if (reg_info->value_regs) { 219314564Sdim // Process this composite register request by delegating to the 220341825Sdim // constituent primordial registers. 221258884Semaste 222314564Sdim // Index of the primordial register. 223314564Sdim bool success = true; 224314564Sdim for (uint32_t idx = 0; success; ++idx) { 225314564Sdim const uint32_t prim_reg = reg_info->value_regs[idx]; 226314564Sdim if (prim_reg == LLDB_INVALID_REGNUM) 227314564Sdim break; 228341825Sdim // We have a valid primordial register as our constituent. Grab the 229341825Sdim // corresponding register info. 230314564Sdim const RegisterInfo *prim_reg_info = GetRegisterInfoAtIndex(prim_reg); 231353358Sdim if (prim_reg_info == nullptr) 232314564Sdim success = false; 233314564Sdim else { 234314564Sdim // Read the containing register if it hasn't already been read 235314564Sdim if (!GetRegisterIsValid(prim_reg)) 236314564Sdim success = GetPrimordialRegister(prim_reg_info, gdb_comm); 237254721Semaste } 238314564Sdim } 239254721Semaste 240314564Sdim if (success) { 241314564Sdim // If we reach this point, all primordial register requests have 242341825Sdim // succeeded. Validate this composite register. 243314564Sdim SetRegisterIsValid(reg_info, true); 244314564Sdim } 245314564Sdim } else { 246314564Sdim // Get each register individually 247314564Sdim GetPrimordialRegister(reg_info, gdb_comm); 248254721Semaste } 249254721Semaste 250314564Sdim // Make sure we got a valid register value after reading it 251314564Sdim if (!GetRegisterIsValid(reg)) 252314564Sdim return false; 253314564Sdim } 254276479Sdim 255314564Sdim if (&data != &m_reg_data) { 256314564Sdim assert(m_reg_data.GetByteSize() >= 257314564Sdim reg_info->byte_offset + reg_info->byte_size); 258314564Sdim // If our register context and our register info disagree, which should 259341825Sdim // never happen, don't read past the end of the buffer. 260314564Sdim if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 261314564Sdim return false; 262276479Sdim 263341825Sdim // If we aren't extracting into our own buffer (which only happens when 264341825Sdim // this function is called from ReadRegisterValue(uint32_t, Scalar&)) then 265341825Sdim // we transfer bytes from our buffer into the data buffer that was passed 266341825Sdim // in 267314564Sdim 268314564Sdim data.SetByteOrder(m_reg_data.GetByteOrder()); 269314564Sdim data.SetData(m_reg_data, reg_info->byte_offset, reg_info->byte_size); 270314564Sdim } 271314564Sdim return true; 272254721Semaste} 273254721Semaste 274314564Sdimbool GDBRemoteRegisterContext::WriteRegister(const RegisterInfo *reg_info, 275314564Sdim const RegisterValue &value) { 276314564Sdim DataExtractor data; 277314564Sdim if (value.GetData(data)) 278314564Sdim return WriteRegisterBytes(reg_info, data, 0); 279314564Sdim return false; 280254721Semaste} 281254721Semaste 282254721Semaste// Helper function for GDBRemoteRegisterContext::WriteRegisterBytes(). 283314564Sdimbool GDBRemoteRegisterContext::SetPrimordialRegister( 284314564Sdim const RegisterInfo *reg_info, GDBRemoteCommunicationClient &gdb_comm) { 285314564Sdim StreamString packet; 286314564Sdim StringExtractorGDBRemote response; 287314564Sdim const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 288314564Sdim // Invalidate just this register 289314564Sdim SetRegisterIsValid(reg, false); 290254721Semaste 291314564Sdim return gdb_comm.WriteRegister( 292314564Sdim m_thread.GetProtocolID(), reg_info->kinds[eRegisterKindProcessPlugin], 293314564Sdim {m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size), 294314564Sdim reg_info->byte_size}); 295254721Semaste} 296254721Semaste 297314564Sdimbool GDBRemoteRegisterContext::WriteRegisterBytes(const RegisterInfo *reg_info, 298314564Sdim DataExtractor &data, 299314564Sdim uint32_t data_offset) { 300314564Sdim ExecutionContext exe_ctx(CalculateThread()); 301254721Semaste 302314564Sdim Process *process = exe_ctx.GetProcessPtr(); 303314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 304353358Sdim if (process == nullptr || thread == nullptr) 305314564Sdim return false; 306254721Semaste 307314564Sdim GDBRemoteCommunicationClient &gdb_comm( 308314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 309254721Semaste 310314564Sdim assert(m_reg_data.GetByteSize() >= 311314564Sdim reg_info->byte_offset + reg_info->byte_size); 312254721Semaste 313314564Sdim // If our register context and our register info disagree, which should never 314341825Sdim // happen, don't overwrite past the end of the buffer. 315314564Sdim if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 316314564Sdim return false; 317254721Semaste 318314564Sdim // Grab a pointer to where we are going to put this register 319314564Sdim uint8_t *dst = const_cast<uint8_t *>( 320314564Sdim m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size)); 321276479Sdim 322353358Sdim if (dst == nullptr) 323314564Sdim return false; 324276479Sdim 325314564Sdim if (data.CopyByteOrderedData(data_offset, // src offset 326314564Sdim reg_info->byte_size, // src length 327314564Sdim dst, // dst 328314564Sdim reg_info->byte_size, // dst length 329314564Sdim m_reg_data.GetByteOrder())) // dst byte order 330314564Sdim { 331314564Sdim GDBRemoteClientBase::Lock lock(gdb_comm, false); 332314564Sdim if (lock) { 333314564Sdim if (m_read_all_at_once) { 334314564Sdim // Invalidate all register values 335314564Sdim InvalidateIfNeeded(true); 336276479Sdim 337314564Sdim // Set all registers in one packet 338314564Sdim if (gdb_comm.WriteAllRegisters( 339314564Sdim m_thread.GetProtocolID(), 340314564Sdim {m_reg_data.GetDataStart(), size_t(m_reg_data.GetByteSize())})) 341254721Semaste 342254721Semaste { 343314564Sdim SetAllRegisterValid(false); 344314564Sdim return true; 345314564Sdim } 346314564Sdim } else { 347314564Sdim bool success = true; 348254721Semaste 349314564Sdim if (reg_info->value_regs) { 350341825Sdim // This register is part of another register. In this case we read 351341825Sdim // the actual register data for any "value_regs", and once all that 352341825Sdim // data is read, we will have enough data in our register context 353341825Sdim // bytes for the value of this register 354254721Semaste 355314564Sdim // Invalidate this composite register first. 356254721Semaste 357314564Sdim for (uint32_t idx = 0; success; ++idx) { 358314564Sdim const uint32_t reg = reg_info->value_regs[idx]; 359314564Sdim if (reg == LLDB_INVALID_REGNUM) 360314564Sdim break; 361341825Sdim // We have a valid primordial register as our constituent. Grab the 362341825Sdim // corresponding register info. 363314564Sdim const RegisterInfo *value_reg_info = GetRegisterInfoAtIndex(reg); 364353358Sdim if (value_reg_info == nullptr) 365314564Sdim success = false; 366314564Sdim else 367314564Sdim success = SetPrimordialRegister(value_reg_info, gdb_comm); 368314564Sdim } 369314564Sdim } else { 370314564Sdim // This is an actual register, write it 371314564Sdim success = SetPrimordialRegister(reg_info, gdb_comm); 372314564Sdim } 373254721Semaste 374314564Sdim // Check if writing this register will invalidate any other register 375341825Sdim // values? If so, invalidate them 376314564Sdim if (reg_info->invalidate_regs) { 377314564Sdim for (uint32_t idx = 0, reg = reg_info->invalidate_regs[0]; 378314564Sdim reg != LLDB_INVALID_REGNUM; 379314564Sdim reg = reg_info->invalidate_regs[++idx]) { 380314564Sdim SetRegisterIsValid(reg, false); 381314564Sdim } 382314564Sdim } 383254721Semaste 384314564Sdim return success; 385314564Sdim } 386314564Sdim } else { 387314564Sdim Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 388314564Sdim GDBR_LOG_PACKETS)); 389314564Sdim if (log) { 390314564Sdim if (log->GetVerbose()) { 391314564Sdim StreamString strm; 392314564Sdim gdb_comm.DumpHistory(strm); 393314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 394314564Sdim "write register for \"%s\":\n%s", 395314564Sdim reg_info->name, strm.GetData()); 396314564Sdim } else 397314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 398314564Sdim "write register for \"%s\"", 399314564Sdim reg_info->name); 400314564Sdim } 401254721Semaste } 402314564Sdim } 403314564Sdim return false; 404254721Semaste} 405254721Semaste 406314564Sdimbool GDBRemoteRegisterContext::ReadAllRegisterValues( 407314564Sdim RegisterCheckpoint ®_checkpoint) { 408314564Sdim ExecutionContext exe_ctx(CalculateThread()); 409254721Semaste 410314564Sdim Process *process = exe_ctx.GetProcessPtr(); 411314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 412353358Sdim if (process == nullptr || thread == nullptr) 413314564Sdim return false; 414258884Semaste 415314564Sdim GDBRemoteCommunicationClient &gdb_comm( 416314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 417314564Sdim 418314564Sdim uint32_t save_id = 0; 419314564Sdim if (gdb_comm.SaveRegisterState(thread->GetProtocolID(), save_id)) { 420314564Sdim reg_checkpoint.SetID(save_id); 421314564Sdim reg_checkpoint.GetData().reset(); 422314564Sdim return true; 423314564Sdim } else { 424314564Sdim reg_checkpoint.SetID(0); // Invalid save ID is zero 425314564Sdim return ReadAllRegisterValues(reg_checkpoint.GetData()); 426314564Sdim } 427258884Semaste} 428258884Semaste 429314564Sdimbool GDBRemoteRegisterContext::WriteAllRegisterValues( 430314564Sdim const RegisterCheckpoint ®_checkpoint) { 431314564Sdim uint32_t save_id = reg_checkpoint.GetID(); 432314564Sdim if (save_id != 0) { 433314564Sdim ExecutionContext exe_ctx(CalculateThread()); 434254721Semaste 435254721Semaste Process *process = exe_ctx.GetProcessPtr(); 436254721Semaste Thread *thread = exe_ctx.GetThreadPtr(); 437353358Sdim if (process == nullptr || thread == nullptr) 438314564Sdim return false; 439254721Semaste 440314564Sdim GDBRemoteCommunicationClient &gdb_comm( 441314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 442254721Semaste 443314564Sdim return gdb_comm.RestoreRegisterState(m_thread.GetProtocolID(), save_id); 444314564Sdim } else { 445314564Sdim return WriteAllRegisterValues(reg_checkpoint.GetData()); 446314564Sdim } 447314564Sdim} 448254721Semaste 449314564Sdimbool GDBRemoteRegisterContext::ReadAllRegisterValues( 450314564Sdim lldb::DataBufferSP &data_sp) { 451314564Sdim ExecutionContext exe_ctx(CalculateThread()); 452276479Sdim 453314564Sdim Process *process = exe_ctx.GetProcessPtr(); 454314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 455353358Sdim if (process == nullptr || thread == nullptr) 456314564Sdim return false; 457254721Semaste 458314564Sdim GDBRemoteCommunicationClient &gdb_comm( 459314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 460276479Sdim 461314564Sdim const bool use_g_packet = 462344779Sdim !gdb_comm.AvoidGPackets((ProcessGDBRemote *)process); 463276479Sdim 464314564Sdim GDBRemoteClientBase::Lock lock(gdb_comm, false); 465314564Sdim if (lock) { 466314564Sdim if (gdb_comm.SyncThreadState(m_thread.GetProtocolID())) 467314564Sdim InvalidateAllRegisters(); 468276479Sdim 469314564Sdim if (use_g_packet && 470314564Sdim (data_sp = gdb_comm.ReadAllRegisters(m_thread.GetProtocolID()))) 471314564Sdim return true; 472314564Sdim 473314564Sdim // We're going to read each register 474314564Sdim // individually and store them as binary data in a buffer. 475314564Sdim const RegisterInfo *reg_info; 476314564Sdim 477353358Sdim for (uint32_t i = 0; (reg_info = GetRegisterInfoAtIndex(i)) != nullptr; 478353358Sdim i++) { 479314564Sdim if (reg_info 480314564Sdim ->value_regs) // skip registers that are slices of real registers 481314564Sdim continue; 482314564Sdim ReadRegisterBytes(reg_info, m_reg_data); 483314564Sdim // ReadRegisterBytes saves the contents of the register in to the 484314564Sdim // m_reg_data buffer 485254721Semaste } 486353358Sdim data_sp = std::make_shared<DataBufferHeap>( 487353358Sdim m_reg_data.GetDataStart(), m_reg_info.GetRegisterDataByteSize()); 488314564Sdim return true; 489314564Sdim } else { 490276479Sdim 491314564Sdim Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 492314564Sdim GDBR_LOG_PACKETS)); 493314564Sdim if (log) { 494314564Sdim if (log->GetVerbose()) { 495314564Sdim StreamString strm; 496314564Sdim gdb_comm.DumpHistory(strm); 497314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 498314564Sdim "read all registers:\n%s", 499314564Sdim strm.GetData()); 500314564Sdim } else 501314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 502314564Sdim "read all registers"); 503254721Semaste } 504314564Sdim } 505254721Semaste 506314564Sdim data_sp.reset(); 507314564Sdim return false; 508254721Semaste} 509254721Semaste 510314564Sdimbool GDBRemoteRegisterContext::WriteAllRegisterValues( 511314564Sdim const lldb::DataBufferSP &data_sp) { 512353358Sdim if (!data_sp || data_sp->GetBytes() == nullptr || data_sp->GetByteSize() == 0) 513314564Sdim return false; 514254721Semaste 515314564Sdim ExecutionContext exe_ctx(CalculateThread()); 516254721Semaste 517314564Sdim Process *process = exe_ctx.GetProcessPtr(); 518314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 519353358Sdim if (process == nullptr || thread == nullptr) 520314564Sdim return false; 521254721Semaste 522314564Sdim GDBRemoteCommunicationClient &gdb_comm( 523314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 524254721Semaste 525314564Sdim const bool use_g_packet = 526344779Sdim !gdb_comm.AvoidGPackets((ProcessGDBRemote *)process); 527276479Sdim 528314564Sdim GDBRemoteClientBase::Lock lock(gdb_comm, false); 529314564Sdim if (lock) { 530314564Sdim // The data_sp contains the G response packet. 531314564Sdim if (use_g_packet) { 532314564Sdim if (gdb_comm.WriteAllRegisters( 533314564Sdim m_thread.GetProtocolID(), 534314564Sdim {data_sp->GetBytes(), size_t(data_sp->GetByteSize())})) 535314564Sdim return true; 536254721Semaste 537314564Sdim uint32_t num_restored = 0; 538341825Sdim // We need to manually go through all of the registers and restore them 539341825Sdim // manually 540314564Sdim DataExtractor restore_data(data_sp, m_reg_data.GetByteOrder(), 541314564Sdim m_reg_data.GetAddressByteSize()); 542288943Sdim 543314564Sdim const RegisterInfo *reg_info; 544288943Sdim 545341825Sdim // The g packet contents may either include the slice registers 546341825Sdim // (registers defined in terms of other registers, e.g. eax is a subset 547341825Sdim // of rax) or not. The slice registers should NOT be in the g packet, 548341825Sdim // but some implementations may incorrectly include them. 549314564Sdim // 550314564Sdim // If the slice registers are included in the packet, we must step over 551341825Sdim // the slice registers when parsing the packet -- relying on the 552341825Sdim // RegisterInfo byte_offset field would be incorrect. If the slice 553341825Sdim // registers are not included, then using the byte_offset values into the 554314564Sdim // data buffer is the best way to find individual register values. 555288943Sdim 556314564Sdim uint64_t size_including_slice_registers = 0; 557314564Sdim uint64_t size_not_including_slice_registers = 0; 558314564Sdim uint64_t size_by_highest_offset = 0; 559254721Semaste 560314564Sdim for (uint32_t reg_idx = 0; 561353358Sdim (reg_info = GetRegisterInfoAtIndex(reg_idx)) != nullptr; ++reg_idx) { 562314564Sdim size_including_slice_registers += reg_info->byte_size; 563353358Sdim if (reg_info->value_regs == nullptr) 564314564Sdim size_not_including_slice_registers += reg_info->byte_size; 565314564Sdim if (reg_info->byte_offset >= size_by_highest_offset) 566314564Sdim size_by_highest_offset = reg_info->byte_offset + reg_info->byte_size; 567314564Sdim } 568254721Semaste 569314564Sdim bool use_byte_offset_into_buffer; 570314564Sdim if (size_by_highest_offset == restore_data.GetByteSize()) { 571314564Sdim // The size of the packet agrees with the highest offset: + size in the 572314564Sdim // register file 573314564Sdim use_byte_offset_into_buffer = true; 574314564Sdim } else if (size_not_including_slice_registers == 575314564Sdim restore_data.GetByteSize()) { 576314564Sdim // The size of the packet is the same as concatenating all of the 577341825Sdim // registers sequentially, skipping the slice registers 578314564Sdim use_byte_offset_into_buffer = true; 579314564Sdim } else if (size_including_slice_registers == restore_data.GetByteSize()) { 580314564Sdim // The slice registers are present in the packet (when they shouldn't 581341825Sdim // be). Don't try to use the RegisterInfo byte_offset into the 582341825Sdim // restore_data, it will point to the wrong place. 583314564Sdim use_byte_offset_into_buffer = false; 584314564Sdim } else { 585314564Sdim // None of our expected sizes match the actual g packet data we're 586341825Sdim // looking at. The most conservative approach here is to use the 587341825Sdim // running total byte offset. 588314564Sdim use_byte_offset_into_buffer = false; 589314564Sdim } 590254721Semaste 591314564Sdim // In case our register definitions don't include the correct offsets, 592314564Sdim // keep track of the size of each reg & compute offset based on that. 593314564Sdim uint32_t running_byte_offset = 0; 594314564Sdim for (uint32_t reg_idx = 0; 595353358Sdim (reg_info = GetRegisterInfoAtIndex(reg_idx)) != nullptr; 596314564Sdim ++reg_idx, running_byte_offset += reg_info->byte_size) { 597314564Sdim // Skip composite aka slice registers (e.g. eax is a slice of rax). 598314564Sdim if (reg_info->value_regs) 599314564Sdim continue; 600254721Semaste 601314564Sdim const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 602254721Semaste 603314564Sdim uint32_t register_offset; 604314564Sdim if (use_byte_offset_into_buffer) { 605314564Sdim register_offset = reg_info->byte_offset; 606314564Sdim } else { 607314564Sdim register_offset = running_byte_offset; 608314564Sdim } 609254721Semaste 610314564Sdim const uint32_t reg_byte_size = reg_info->byte_size; 611276479Sdim 612314564Sdim const uint8_t *restore_src = 613314564Sdim restore_data.PeekData(register_offset, reg_byte_size); 614314564Sdim if (restore_src) { 615314564Sdim SetRegisterIsValid(reg, false); 616314564Sdim if (gdb_comm.WriteRegister( 617314564Sdim m_thread.GetProtocolID(), 618314564Sdim reg_info->kinds[eRegisterKindProcessPlugin], 619314564Sdim {restore_src, reg_byte_size})) 620314564Sdim ++num_restored; 621314564Sdim } 622314564Sdim } 623314564Sdim return num_restored > 0; 624314564Sdim } else { 625314564Sdim // For the use_g_packet == false case, we're going to write each register 626314564Sdim // individually. The data buffer is binary data in this case, instead of 627314564Sdim // ascii characters. 628254721Semaste 629314564Sdim bool arm64_debugserver = false; 630314564Sdim if (m_thread.GetProcess().get()) { 631314564Sdim const ArchSpec &arch = 632314564Sdim m_thread.GetProcess()->GetTarget().GetArchitecture(); 633314564Sdim if (arch.IsValid() && arch.GetMachine() == llvm::Triple::aarch64 && 634314564Sdim arch.GetTriple().getVendor() == llvm::Triple::Apple && 635314564Sdim arch.GetTriple().getOS() == llvm::Triple::IOS) { 636314564Sdim arm64_debugserver = true; 637254721Semaste } 638314564Sdim } 639314564Sdim uint32_t num_restored = 0; 640314564Sdim const RegisterInfo *reg_info; 641353358Sdim for (uint32_t i = 0; (reg_info = GetRegisterInfoAtIndex(i)) != nullptr; 642314564Sdim i++) { 643314564Sdim if (reg_info->value_regs) // skip registers that are slices of real 644314564Sdim // registers 645314564Sdim continue; 646341825Sdim // Skip the fpsr and fpcr floating point status/control register 647341825Sdim // writing to work around a bug in an older version of debugserver that 648341825Sdim // would lead to register context corruption when writing fpsr/fpcr. 649314564Sdim if (arm64_debugserver && (strcmp(reg_info->name, "fpsr") == 0 || 650314564Sdim strcmp(reg_info->name, "fpcr") == 0)) { 651314564Sdim continue; 652254721Semaste } 653314564Sdim 654314564Sdim SetRegisterIsValid(reg_info, false); 655314564Sdim if (gdb_comm.WriteRegister(m_thread.GetProtocolID(), 656314564Sdim reg_info->kinds[eRegisterKindProcessPlugin], 657314564Sdim {data_sp->GetBytes() + reg_info->byte_offset, 658314564Sdim reg_info->byte_size})) 659314564Sdim ++num_restored; 660314564Sdim } 661314564Sdim return num_restored > 0; 662254721Semaste } 663314564Sdim } else { 664314564Sdim Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 665314564Sdim GDBR_LOG_PACKETS)); 666314564Sdim if (log) { 667314564Sdim if (log->GetVerbose()) { 668314564Sdim StreamString strm; 669314564Sdim gdb_comm.DumpHistory(strm); 670314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 671314564Sdim "write all registers:\n%s", 672314564Sdim strm.GetData()); 673314564Sdim } else 674314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 675314564Sdim "write all registers"); 676314564Sdim } 677314564Sdim } 678314564Sdim return false; 679254721Semaste} 680254721Semaste 681314564Sdimuint32_t GDBRemoteRegisterContext::ConvertRegisterKindToRegisterNumber( 682314564Sdim lldb::RegisterKind kind, uint32_t num) { 683314564Sdim return m_reg_info.ConvertRegisterKindToRegisterNumber(kind, num); 684254721Semaste} 685254721Semaste 686314564Sdimvoid GDBRemoteDynamicRegisterInfo::HardcodeARMRegisters(bool from_scratch) { 687314564Sdim // For Advanced SIMD and VFP register mapping. 688314564Sdim static uint32_t g_d0_regs[] = {26, 27, LLDB_INVALID_REGNUM}; // (s0, s1) 689314564Sdim static uint32_t g_d1_regs[] = {28, 29, LLDB_INVALID_REGNUM}; // (s2, s3) 690314564Sdim static uint32_t g_d2_regs[] = {30, 31, LLDB_INVALID_REGNUM}; // (s4, s5) 691314564Sdim static uint32_t g_d3_regs[] = {32, 33, LLDB_INVALID_REGNUM}; // (s6, s7) 692314564Sdim static uint32_t g_d4_regs[] = {34, 35, LLDB_INVALID_REGNUM}; // (s8, s9) 693314564Sdim static uint32_t g_d5_regs[] = {36, 37, LLDB_INVALID_REGNUM}; // (s10, s11) 694314564Sdim static uint32_t g_d6_regs[] = {38, 39, LLDB_INVALID_REGNUM}; // (s12, s13) 695314564Sdim static uint32_t g_d7_regs[] = {40, 41, LLDB_INVALID_REGNUM}; // (s14, s15) 696314564Sdim static uint32_t g_d8_regs[] = {42, 43, LLDB_INVALID_REGNUM}; // (s16, s17) 697314564Sdim static uint32_t g_d9_regs[] = {44, 45, LLDB_INVALID_REGNUM}; // (s18, s19) 698314564Sdim static uint32_t g_d10_regs[] = {46, 47, LLDB_INVALID_REGNUM}; // (s20, s21) 699314564Sdim static uint32_t g_d11_regs[] = {48, 49, LLDB_INVALID_REGNUM}; // (s22, s23) 700314564Sdim static uint32_t g_d12_regs[] = {50, 51, LLDB_INVALID_REGNUM}; // (s24, s25) 701314564Sdim static uint32_t g_d13_regs[] = {52, 53, LLDB_INVALID_REGNUM}; // (s26, s27) 702314564Sdim static uint32_t g_d14_regs[] = {54, 55, LLDB_INVALID_REGNUM}; // (s28, s29) 703314564Sdim static uint32_t g_d15_regs[] = {56, 57, LLDB_INVALID_REGNUM}; // (s30, s31) 704314564Sdim static uint32_t g_q0_regs[] = { 705314564Sdim 26, 27, 28, 29, LLDB_INVALID_REGNUM}; // (d0, d1) -> (s0, s1, s2, s3) 706314564Sdim static uint32_t g_q1_regs[] = { 707314564Sdim 30, 31, 32, 33, LLDB_INVALID_REGNUM}; // (d2, d3) -> (s4, s5, s6, s7) 708314564Sdim static uint32_t g_q2_regs[] = { 709314564Sdim 34, 35, 36, 37, LLDB_INVALID_REGNUM}; // (d4, d5) -> (s8, s9, s10, s11) 710314564Sdim static uint32_t g_q3_regs[] = { 711314564Sdim 38, 39, 40, 41, LLDB_INVALID_REGNUM}; // (d6, d7) -> (s12, s13, s14, s15) 712314564Sdim static uint32_t g_q4_regs[] = { 713314564Sdim 42, 43, 44, 45, LLDB_INVALID_REGNUM}; // (d8, d9) -> (s16, s17, s18, s19) 714314564Sdim static uint32_t g_q5_regs[] = { 715314564Sdim 46, 47, 48, 49, 716314564Sdim LLDB_INVALID_REGNUM}; // (d10, d11) -> (s20, s21, s22, s23) 717314564Sdim static uint32_t g_q6_regs[] = { 718314564Sdim 50, 51, 52, 53, 719314564Sdim LLDB_INVALID_REGNUM}; // (d12, d13) -> (s24, s25, s26, s27) 720314564Sdim static uint32_t g_q7_regs[] = { 721314564Sdim 54, 55, 56, 57, 722314564Sdim LLDB_INVALID_REGNUM}; // (d14, d15) -> (s28, s29, s30, s31) 723314564Sdim static uint32_t g_q8_regs[] = {59, 60, LLDB_INVALID_REGNUM}; // (d16, d17) 724314564Sdim static uint32_t g_q9_regs[] = {61, 62, LLDB_INVALID_REGNUM}; // (d18, d19) 725314564Sdim static uint32_t g_q10_regs[] = {63, 64, LLDB_INVALID_REGNUM}; // (d20, d21) 726314564Sdim static uint32_t g_q11_regs[] = {65, 66, LLDB_INVALID_REGNUM}; // (d22, d23) 727314564Sdim static uint32_t g_q12_regs[] = {67, 68, LLDB_INVALID_REGNUM}; // (d24, d25) 728314564Sdim static uint32_t g_q13_regs[] = {69, 70, LLDB_INVALID_REGNUM}; // (d26, d27) 729314564Sdim static uint32_t g_q14_regs[] = {71, 72, LLDB_INVALID_REGNUM}; // (d28, d29) 730314564Sdim static uint32_t g_q15_regs[] = {73, 74, LLDB_INVALID_REGNUM}; // (d30, d31) 731258054Semaste 732341825Sdim // This is our array of composite registers, with each element coming from 733341825Sdim // the above register mappings. 734314564Sdim static uint32_t *g_composites[] = { 735314564Sdim g_d0_regs, g_d1_regs, g_d2_regs, g_d3_regs, g_d4_regs, g_d5_regs, 736314564Sdim g_d6_regs, g_d7_regs, g_d8_regs, g_d9_regs, g_d10_regs, g_d11_regs, 737314564Sdim g_d12_regs, g_d13_regs, g_d14_regs, g_d15_regs, g_q0_regs, g_q1_regs, 738314564Sdim g_q2_regs, g_q3_regs, g_q4_regs, g_q5_regs, g_q6_regs, g_q7_regs, 739314564Sdim g_q8_regs, g_q9_regs, g_q10_regs, g_q11_regs, g_q12_regs, g_q13_regs, 740314564Sdim g_q14_regs, g_q15_regs}; 741254721Semaste 742314564Sdim // clang-format off 743254721Semaste static RegisterInfo g_register_infos[] = { 744314564Sdim// NAME ALT SZ OFF ENCODING FORMAT EH_FRAME DWARF GENERIC PROCESS PLUGIN LLDB VALUE REGS INVALIDATE REGS SIZE EXPR SIZE LEN 745314564Sdim// ====== ====== === === ============= ========== =================== =================== ====================== ============= ==== ========== =============== ========= ======== 746314564Sdim { "r0", "arg1", 4, 0, eEncodingUint, eFormatHex, { ehframe_r0, dwarf_r0, LLDB_REGNUM_GENERIC_ARG1,0, 0 }, nullptr, nullptr, nullptr, 0 }, 747314564Sdim { "r1", "arg2", 4, 0, eEncodingUint, eFormatHex, { ehframe_r1, dwarf_r1, LLDB_REGNUM_GENERIC_ARG2,1, 1 }, nullptr, nullptr, nullptr, 0 }, 748314564Sdim { "r2", "arg3", 4, 0, eEncodingUint, eFormatHex, { ehframe_r2, dwarf_r2, LLDB_REGNUM_GENERIC_ARG3,2, 2 }, nullptr, nullptr, nullptr, 0 }, 749314564Sdim { "r3", "arg4", 4, 0, eEncodingUint, eFormatHex, { ehframe_r3, dwarf_r3, LLDB_REGNUM_GENERIC_ARG4,3, 3 }, nullptr, nullptr, nullptr, 0 }, 750314564Sdim { "r4", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r4, dwarf_r4, LLDB_INVALID_REGNUM, 4, 4 }, nullptr, nullptr, nullptr, 0 }, 751314564Sdim { "r5", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r5, dwarf_r5, LLDB_INVALID_REGNUM, 5, 5 }, nullptr, nullptr, nullptr, 0 }, 752314564Sdim { "r6", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r6, dwarf_r6, LLDB_INVALID_REGNUM, 6, 6 }, nullptr, nullptr, nullptr, 0 }, 753314564Sdim { "r7", "fp", 4, 0, eEncodingUint, eFormatHex, { ehframe_r7, dwarf_r7, LLDB_REGNUM_GENERIC_FP, 7, 7 }, nullptr, nullptr, nullptr, 0 }, 754314564Sdim { "r8", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r8, dwarf_r8, LLDB_INVALID_REGNUM, 8, 8 }, nullptr, nullptr, nullptr, 0 }, 755314564Sdim { "r9", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r9, dwarf_r9, LLDB_INVALID_REGNUM, 9, 9 }, nullptr, nullptr, nullptr, 0 }, 756314564Sdim { "r10", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r10, dwarf_r10, LLDB_INVALID_REGNUM, 10, 10 }, nullptr, nullptr, nullptr, 0 }, 757314564Sdim { "r11", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r11, dwarf_r11, LLDB_INVALID_REGNUM, 11, 11 }, nullptr, nullptr, nullptr, 0 }, 758314564Sdim { "r12", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r12, dwarf_r12, LLDB_INVALID_REGNUM, 12, 12 }, nullptr, nullptr, nullptr, 0 }, 759314564Sdim { "sp", "r13", 4, 0, eEncodingUint, eFormatHex, { ehframe_sp, dwarf_sp, LLDB_REGNUM_GENERIC_SP, 13, 13 }, nullptr, nullptr, nullptr, 0 }, 760314564Sdim { "lr", "r14", 4, 0, eEncodingUint, eFormatHex, { ehframe_lr, dwarf_lr, LLDB_REGNUM_GENERIC_RA, 14, 14 }, nullptr, nullptr, nullptr, 0 }, 761314564Sdim { "pc", "r15", 4, 0, eEncodingUint, eFormatHex, { ehframe_pc, dwarf_pc, LLDB_REGNUM_GENERIC_PC, 15, 15 }, nullptr, nullptr, nullptr, 0 }, 762314564Sdim { "f0", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 16, 16 }, nullptr, nullptr, nullptr, 0 }, 763314564Sdim { "f1", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 17, 17 }, nullptr, nullptr, nullptr, 0 }, 764314564Sdim { "f2", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 18, 18 }, nullptr, nullptr, nullptr, 0 }, 765314564Sdim { "f3", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 19, 19 }, nullptr, nullptr, nullptr, 0 }, 766314564Sdim { "f4", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 20, 20 }, nullptr, nullptr, nullptr, 0 }, 767314564Sdim { "f5", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 21, 21 }, nullptr, nullptr, nullptr, 0 }, 768314564Sdim { "f6", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 22, 22 }, nullptr, nullptr, nullptr, 0 }, 769314564Sdim { "f7", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 23, 23 }, nullptr, nullptr, nullptr, 0 }, 770314564Sdim { "fps", nullptr, 4, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 24, 24 }, nullptr, nullptr, nullptr, 0 }, 771314564Sdim { "cpsr","flags", 4, 0, eEncodingUint, eFormatHex, { ehframe_cpsr, dwarf_cpsr, LLDB_INVALID_REGNUM, 25, 25 }, nullptr, nullptr, nullptr, 0 }, 772314564Sdim { "s0", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s0, LLDB_INVALID_REGNUM, 26, 26 }, nullptr, nullptr, nullptr, 0 }, 773314564Sdim { "s1", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s1, LLDB_INVALID_REGNUM, 27, 27 }, nullptr, nullptr, nullptr, 0 }, 774314564Sdim { "s2", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s2, LLDB_INVALID_REGNUM, 28, 28 }, nullptr, nullptr, nullptr, 0 }, 775314564Sdim { "s3", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s3, LLDB_INVALID_REGNUM, 29, 29 }, nullptr, nullptr, nullptr, 0 }, 776314564Sdim { "s4", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s4, LLDB_INVALID_REGNUM, 30, 30 }, nullptr, nullptr, nullptr, 0 }, 777314564Sdim { "s5", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s5, LLDB_INVALID_REGNUM, 31, 31 }, nullptr, nullptr, nullptr, 0 }, 778314564Sdim { "s6", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s6, LLDB_INVALID_REGNUM, 32, 32 }, nullptr, nullptr, nullptr, 0 }, 779314564Sdim { "s7", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s7, LLDB_INVALID_REGNUM, 33, 33 }, nullptr, nullptr, nullptr, 0 }, 780314564Sdim { "s8", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s8, LLDB_INVALID_REGNUM, 34, 34 }, nullptr, nullptr, nullptr, 0 }, 781314564Sdim { "s9", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s9, LLDB_INVALID_REGNUM, 35, 35 }, nullptr, nullptr, nullptr, 0 }, 782314564Sdim { "s10", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s10, LLDB_INVALID_REGNUM, 36, 36 }, nullptr, nullptr, nullptr, 0 }, 783314564Sdim { "s11", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s11, LLDB_INVALID_REGNUM, 37, 37 }, nullptr, nullptr, nullptr, 0 }, 784314564Sdim { "s12", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s12, LLDB_INVALID_REGNUM, 38, 38 }, nullptr, nullptr, nullptr, 0 }, 785314564Sdim { "s13", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s13, LLDB_INVALID_REGNUM, 39, 39 }, nullptr, nullptr, nullptr, 0 }, 786314564Sdim { "s14", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s14, LLDB_INVALID_REGNUM, 40, 40 }, nullptr, nullptr, nullptr, 0 }, 787314564Sdim { "s15", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s15, LLDB_INVALID_REGNUM, 41, 41 }, nullptr, nullptr, nullptr, 0 }, 788314564Sdim { "s16", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s16, LLDB_INVALID_REGNUM, 42, 42 }, nullptr, nullptr, nullptr, 0 }, 789314564Sdim { "s17", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s17, LLDB_INVALID_REGNUM, 43, 43 }, nullptr, nullptr, nullptr, 0 }, 790314564Sdim { "s18", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s18, LLDB_INVALID_REGNUM, 44, 44 }, nullptr, nullptr, nullptr, 0 }, 791314564Sdim { "s19", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s19, LLDB_INVALID_REGNUM, 45, 45 }, nullptr, nullptr, nullptr, 0 }, 792314564Sdim { "s20", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s20, LLDB_INVALID_REGNUM, 46, 46 }, nullptr, nullptr, nullptr, 0 }, 793314564Sdim { "s21", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s21, LLDB_INVALID_REGNUM, 47, 47 }, nullptr, nullptr, nullptr, 0 }, 794314564Sdim { "s22", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s22, LLDB_INVALID_REGNUM, 48, 48 }, nullptr, nullptr, nullptr, 0 }, 795314564Sdim { "s23", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s23, LLDB_INVALID_REGNUM, 49, 49 }, nullptr, nullptr, nullptr, 0 }, 796314564Sdim { "s24", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s24, LLDB_INVALID_REGNUM, 50, 50 }, nullptr, nullptr, nullptr, 0 }, 797314564Sdim { "s25", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s25, LLDB_INVALID_REGNUM, 51, 51 }, nullptr, nullptr, nullptr, 0 }, 798314564Sdim { "s26", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s26, LLDB_INVALID_REGNUM, 52, 52 }, nullptr, nullptr, nullptr, 0 }, 799314564Sdim { "s27", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s27, LLDB_INVALID_REGNUM, 53, 53 }, nullptr, nullptr, nullptr, 0 }, 800314564Sdim { "s28", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s28, LLDB_INVALID_REGNUM, 54, 54 }, nullptr, nullptr, nullptr, 0 }, 801314564Sdim { "s29", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s29, LLDB_INVALID_REGNUM, 55, 55 }, nullptr, nullptr, nullptr, 0 }, 802314564Sdim { "s30", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s30, LLDB_INVALID_REGNUM, 56, 56 }, nullptr, nullptr, nullptr, 0 }, 803314564Sdim { "s31", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s31, LLDB_INVALID_REGNUM, 57, 57 }, nullptr, nullptr, nullptr, 0 }, 804314564Sdim { "fpscr",nullptr, 4, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 58, 58 }, nullptr, nullptr, nullptr, 0 }, 805314564Sdim { "d16", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d16, LLDB_INVALID_REGNUM, 59, 59 }, nullptr, nullptr, nullptr, 0 }, 806314564Sdim { "d17", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d17, LLDB_INVALID_REGNUM, 60, 60 }, nullptr, nullptr, nullptr, 0 }, 807314564Sdim { "d18", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d18, LLDB_INVALID_REGNUM, 61, 61 }, nullptr, nullptr, nullptr, 0 }, 808314564Sdim { "d19", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d19, LLDB_INVALID_REGNUM, 62, 62 }, nullptr, nullptr, nullptr, 0 }, 809314564Sdim { "d20", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d20, LLDB_INVALID_REGNUM, 63, 63 }, nullptr, nullptr, nullptr, 0 }, 810314564Sdim { "d21", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d21, LLDB_INVALID_REGNUM, 64, 64 }, nullptr, nullptr, nullptr, 0 }, 811314564Sdim { "d22", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d22, LLDB_INVALID_REGNUM, 65, 65 }, nullptr, nullptr, nullptr, 0 }, 812314564Sdim { "d23", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d23, LLDB_INVALID_REGNUM, 66, 66 }, nullptr, nullptr, nullptr, 0 }, 813314564Sdim { "d24", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d24, LLDB_INVALID_REGNUM, 67, 67 }, nullptr, nullptr, nullptr, 0 }, 814314564Sdim { "d25", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d25, LLDB_INVALID_REGNUM, 68, 68 }, nullptr, nullptr, nullptr, 0 }, 815314564Sdim { "d26", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d26, LLDB_INVALID_REGNUM, 69, 69 }, nullptr, nullptr, nullptr, 0 }, 816314564Sdim { "d27", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d27, LLDB_INVALID_REGNUM, 70, 70 }, nullptr, nullptr, nullptr, 0 }, 817314564Sdim { "d28", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d28, LLDB_INVALID_REGNUM, 71, 71 }, nullptr, nullptr, nullptr, 0 }, 818314564Sdim { "d29", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d29, LLDB_INVALID_REGNUM, 72, 72 }, nullptr, nullptr, nullptr, 0 }, 819314564Sdim { "d30", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d30, LLDB_INVALID_REGNUM, 73, 73 }, nullptr, nullptr, nullptr, 0 }, 820314564Sdim { "d31", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d31, LLDB_INVALID_REGNUM, 74, 74 }, nullptr, nullptr, nullptr, 0 }, 821314564Sdim { "d0", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d0, LLDB_INVALID_REGNUM, 75, 75 }, g_d0_regs, nullptr, nullptr, 0 }, 822314564Sdim { "d1", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d1, LLDB_INVALID_REGNUM, 76, 76 }, g_d1_regs, nullptr, nullptr, 0 }, 823314564Sdim { "d2", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d2, LLDB_INVALID_REGNUM, 77, 77 }, g_d2_regs, nullptr, nullptr, 0 }, 824314564Sdim { "d3", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d3, LLDB_INVALID_REGNUM, 78, 78 }, g_d3_regs, nullptr, nullptr, 0 }, 825314564Sdim { "d4", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d4, LLDB_INVALID_REGNUM, 79, 79 }, g_d4_regs, nullptr, nullptr, 0 }, 826314564Sdim { "d5", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d5, LLDB_INVALID_REGNUM, 80, 80 }, g_d5_regs, nullptr, nullptr, 0 }, 827314564Sdim { "d6", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d6, LLDB_INVALID_REGNUM, 81, 81 }, g_d6_regs, nullptr, nullptr, 0 }, 828314564Sdim { "d7", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d7, LLDB_INVALID_REGNUM, 82, 82 }, g_d7_regs, nullptr, nullptr, 0 }, 829314564Sdim { "d8", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d8, LLDB_INVALID_REGNUM, 83, 83 }, g_d8_regs, nullptr, nullptr, 0 }, 830314564Sdim { "d9", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d9, LLDB_INVALID_REGNUM, 84, 84 }, g_d9_regs, nullptr, nullptr, 0 }, 831314564Sdim { "d10", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d10, LLDB_INVALID_REGNUM, 85, 85 }, g_d10_regs, nullptr, nullptr, 0 }, 832314564Sdim { "d11", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d11, LLDB_INVALID_REGNUM, 86, 86 }, g_d11_regs, nullptr, nullptr, 0 }, 833314564Sdim { "d12", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d12, LLDB_INVALID_REGNUM, 87, 87 }, g_d12_regs, nullptr, nullptr, 0 }, 834314564Sdim { "d13", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d13, LLDB_INVALID_REGNUM, 88, 88 }, g_d13_regs, nullptr, nullptr, 0 }, 835314564Sdim { "d14", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d14, LLDB_INVALID_REGNUM, 89, 89 }, g_d14_regs, nullptr, nullptr, 0 }, 836314564Sdim { "d15", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d15, LLDB_INVALID_REGNUM, 90, 90 }, g_d15_regs, nullptr, nullptr, 0 }, 837314564Sdim { "q0", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q0, LLDB_INVALID_REGNUM, 91, 91 }, g_q0_regs, nullptr, nullptr, 0 }, 838314564Sdim { "q1", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q1, LLDB_INVALID_REGNUM, 92, 92 }, g_q1_regs, nullptr, nullptr, 0 }, 839314564Sdim { "q2", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q2, LLDB_INVALID_REGNUM, 93, 93 }, g_q2_regs, nullptr, nullptr, 0 }, 840314564Sdim { "q3", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q3, LLDB_INVALID_REGNUM, 94, 94 }, g_q3_regs, nullptr, nullptr, 0 }, 841314564Sdim { "q4", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q4, LLDB_INVALID_REGNUM, 95, 95 }, g_q4_regs, nullptr, nullptr, 0 }, 842314564Sdim { "q5", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q5, LLDB_INVALID_REGNUM, 96, 96 }, g_q5_regs, nullptr, nullptr, 0 }, 843314564Sdim { "q6", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q6, LLDB_INVALID_REGNUM, 97, 97 }, g_q6_regs, nullptr, nullptr, 0 }, 844314564Sdim { "q7", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q7, LLDB_INVALID_REGNUM, 98, 98 }, g_q7_regs, nullptr, nullptr, 0 }, 845314564Sdim { "q8", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q8, LLDB_INVALID_REGNUM, 99, 99 }, g_q8_regs, nullptr, nullptr, 0 }, 846314564Sdim { "q9", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q9, LLDB_INVALID_REGNUM, 100, 100 }, g_q9_regs, nullptr, nullptr, 0 }, 847314564Sdim { "q10", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q10, LLDB_INVALID_REGNUM, 101, 101 }, g_q10_regs, nullptr, nullptr, 0 }, 848314564Sdim { "q11", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q11, LLDB_INVALID_REGNUM, 102, 102 }, g_q11_regs, nullptr, nullptr, 0 }, 849314564Sdim { "q12", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q12, LLDB_INVALID_REGNUM, 103, 103 }, g_q12_regs, nullptr, nullptr, 0 }, 850314564Sdim { "q13", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q13, LLDB_INVALID_REGNUM, 104, 104 }, g_q13_regs, nullptr, nullptr, 0 }, 851314564Sdim { "q14", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q14, LLDB_INVALID_REGNUM, 105, 105 }, g_q14_regs, nullptr, nullptr, 0 }, 852314564Sdim { "q15", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q15, LLDB_INVALID_REGNUM, 106, 106 }, g_q15_regs, nullptr, nullptr, 0 } 853254721Semaste }; 854314564Sdim // clang-format on 855254721Semaste 856314564Sdim static const uint32_t num_registers = llvm::array_lengthof(g_register_infos); 857314564Sdim static ConstString gpr_reg_set("General Purpose Registers"); 858314564Sdim static ConstString sfp_reg_set("Software Floating Point Registers"); 859314564Sdim static ConstString vfp_reg_set("Floating Point Registers"); 860314564Sdim size_t i; 861314564Sdim if (from_scratch) { 862314564Sdim // Calculate the offsets of the registers 863314564Sdim // Note that the layout of the "composite" registers (d0-d15 and q0-q15) 864341825Sdim // which comes after the "primordial" registers is important. This enables 865341825Sdim // us to calculate the offset of the composite register by using the offset 866341825Sdim // of its first primordial register. For example, to calculate the offset 867341825Sdim // of q0, use s0's offset. 868314564Sdim if (g_register_infos[2].byte_offset == 0) { 869314564Sdim uint32_t byte_offset = 0; 870314564Sdim for (i = 0; i < num_registers; ++i) { 871314564Sdim // For primordial registers, increment the byte_offset by the byte_size 872341825Sdim // to arrive at the byte_offset for the next register. Otherwise, we 873341825Sdim // have a composite register whose offset can be calculated by 874341825Sdim // consulting the offset of its first primordial register. 875314564Sdim if (!g_register_infos[i].value_regs) { 876314564Sdim g_register_infos[i].byte_offset = byte_offset; 877314564Sdim byte_offset += g_register_infos[i].byte_size; 878314564Sdim } else { 879314564Sdim const uint32_t first_primordial_reg = 880314564Sdim g_register_infos[i].value_regs[0]; 881314564Sdim g_register_infos[i].byte_offset = 882314564Sdim g_register_infos[first_primordial_reg].byte_offset; 883254721Semaste } 884314564Sdim } 885314564Sdim } 886314564Sdim for (i = 0; i < num_registers; ++i) { 887314564Sdim ConstString name; 888314564Sdim ConstString alt_name; 889314564Sdim if (g_register_infos[i].name && g_register_infos[i].name[0]) 890314564Sdim name.SetCString(g_register_infos[i].name); 891314564Sdim if (g_register_infos[i].alt_name && g_register_infos[i].alt_name[0]) 892314564Sdim alt_name.SetCString(g_register_infos[i].alt_name); 893254721Semaste 894314564Sdim if (i <= 15 || i == 25) 895314564Sdim AddRegister(g_register_infos[i], name, alt_name, gpr_reg_set); 896314564Sdim else if (i <= 24) 897314564Sdim AddRegister(g_register_infos[i], name, alt_name, sfp_reg_set); 898314564Sdim else 899314564Sdim AddRegister(g_register_infos[i], name, alt_name, vfp_reg_set); 900254721Semaste } 901314564Sdim } else { 902314564Sdim // Add composite registers to our primordial registers, then. 903314564Sdim const size_t num_composites = llvm::array_lengthof(g_composites); 904314564Sdim const size_t num_dynamic_regs = GetNumRegisters(); 905314564Sdim const size_t num_common_regs = num_registers - num_composites; 906314564Sdim RegisterInfo *g_comp_register_infos = g_register_infos + num_common_regs; 907254721Semaste 908314564Sdim // First we need to validate that all registers that we already have match 909341825Sdim // the non composite regs. If so, then we can add the registers, else we 910341825Sdim // need to bail 911314564Sdim bool match = true; 912314564Sdim if (num_dynamic_regs == num_common_regs) { 913314564Sdim for (i = 0; match && i < num_dynamic_regs; ++i) { 914314564Sdim // Make sure all register names match 915314564Sdim if (m_regs[i].name && g_register_infos[i].name) { 916314564Sdim if (strcmp(m_regs[i].name, g_register_infos[i].name)) { 917254721Semaste match = false; 918314564Sdim break; 919314564Sdim } 920254721Semaste } 921314564Sdim 922314564Sdim // Make sure all register byte sizes match 923314564Sdim if (m_regs[i].byte_size != g_register_infos[i].byte_size) { 924314564Sdim match = false; 925314564Sdim break; 926314564Sdim } 927314564Sdim } 928314564Sdim } else { 929314564Sdim // Wrong number of registers. 930314564Sdim match = false; 931314564Sdim } 932314564Sdim // If "match" is true, then we can add extra registers. 933314564Sdim if (match) { 934314564Sdim for (i = 0; i < num_composites; ++i) { 935314564Sdim ConstString name; 936314564Sdim ConstString alt_name; 937314564Sdim const uint32_t first_primordial_reg = 938314564Sdim g_comp_register_infos[i].value_regs[0]; 939314564Sdim const char *reg_name = g_register_infos[first_primordial_reg].name; 940314564Sdim if (reg_name && reg_name[0]) { 941314564Sdim for (uint32_t j = 0; j < num_dynamic_regs; ++j) { 942314564Sdim const RegisterInfo *reg_info = GetRegisterInfoAtIndex(j); 943314564Sdim // Find a matching primordial register info entry. 944314564Sdim if (reg_info && reg_info->name && 945314564Sdim ::strcasecmp(reg_info->name, reg_name) == 0) { 946341825Sdim // The name matches the existing primordial entry. Find and 947341825Sdim // assign the offset, and then add this composite register entry. 948314564Sdim g_comp_register_infos[i].byte_offset = reg_info->byte_offset; 949314564Sdim name.SetCString(g_comp_register_infos[i].name); 950314564Sdim AddRegister(g_comp_register_infos[i], name, alt_name, 951314564Sdim vfp_reg_set); 952254721Semaste } 953314564Sdim } 954254721Semaste } 955314564Sdim } 956254721Semaste } 957314564Sdim } 958254721Semaste} 959