GDBRemoteRegisterContext.cpp revision 344779
1254721Semaste//===-- GDBRemoteRegisterContext.cpp ----------------------------*- C++ -*-===// 2254721Semaste// 3254721Semaste// The LLVM Compiler Infrastructure 4254721Semaste// 5254721Semaste// This file is distributed under the University of Illinois Open Source 6254721Semaste// License. See LICENSE.TXT for details. 7254721Semaste// 8254721Semaste//===----------------------------------------------------------------------===// 9254721Semaste 10254721Semaste#include "GDBRemoteRegisterContext.h" 11254721Semaste 12254721Semaste#include "lldb/Target/ExecutionContext.h" 13276479Sdim#include "lldb/Target/Target.h" 14321369Sdim#include "lldb/Utility/DataBufferHeap.h" 15321369Sdim#include "lldb/Utility/DataExtractor.h" 16344779Sdim#include "lldb/Utility/RegisterValue.h" 17344779Sdim#include "lldb/Utility/Scalar.h" 18321369Sdim#include "lldb/Utility/StreamString.h" 19254721Semaste#include "ProcessGDBRemote.h" 20254721Semaste#include "ProcessGDBRemoteLog.h" 21254721Semaste#include "ThreadGDBRemote.h" 22254721Semaste#include "Utility/ARM_DWARF_Registers.h" 23296417Sdim#include "Utility/ARM_ehframe_Registers.h" 24341825Sdim#include "lldb/Utility/StringExtractorGDBRemote.h" 25254721Semaste 26254721Semasteusing namespace lldb; 27254721Semasteusing namespace lldb_private; 28288943Sdimusing namespace lldb_private::process_gdb_remote; 29254721Semaste 30254721Semaste//---------------------------------------------------------------------- 31254721Semaste// GDBRemoteRegisterContext constructor 32254721Semaste//---------------------------------------------------------------------- 33314564SdimGDBRemoteRegisterContext::GDBRemoteRegisterContext( 34314564Sdim ThreadGDBRemote &thread, uint32_t concrete_frame_idx, 35314564Sdim GDBRemoteDynamicRegisterInfo ®_info, bool read_all_at_once) 36314564Sdim : RegisterContext(thread, concrete_frame_idx), m_reg_info(reg_info), 37314564Sdim m_reg_valid(), m_reg_data(), m_read_all_at_once(read_all_at_once) { 38341825Sdim // Resize our vector of bools to contain one bool for every register. We will 39341825Sdim // use these boolean values to know when a register value is valid in 40341825Sdim // m_reg_data. 41314564Sdim m_reg_valid.resize(reg_info.GetNumRegisters()); 42254721Semaste 43314564Sdim // Make a heap based buffer that is big enough to store all registers 44314564Sdim DataBufferSP reg_data_sp( 45314564Sdim new DataBufferHeap(reg_info.GetRegisterDataByteSize(), 0)); 46314564Sdim m_reg_data.SetData(reg_data_sp); 47314564Sdim m_reg_data.SetByteOrder(thread.GetProcess()->GetByteOrder()); 48254721Semaste} 49254721Semaste 50254721Semaste//---------------------------------------------------------------------- 51254721Semaste// Destructor 52254721Semaste//---------------------------------------------------------------------- 53314564SdimGDBRemoteRegisterContext::~GDBRemoteRegisterContext() {} 54254721Semaste 55314564Sdimvoid GDBRemoteRegisterContext::InvalidateAllRegisters() { 56314564Sdim SetAllRegisterValid(false); 57254721Semaste} 58254721Semaste 59314564Sdimvoid GDBRemoteRegisterContext::SetAllRegisterValid(bool b) { 60314564Sdim std::vector<bool>::iterator pos, end = m_reg_valid.end(); 61314564Sdim for (pos = m_reg_valid.begin(); pos != end; ++pos) 62314564Sdim *pos = b; 63254721Semaste} 64254721Semaste 65314564Sdimsize_t GDBRemoteRegisterContext::GetRegisterCount() { 66314564Sdim return m_reg_info.GetNumRegisters(); 67254721Semaste} 68254721Semaste 69254721Semasteconst RegisterInfo * 70314564SdimGDBRemoteRegisterContext::GetRegisterInfoAtIndex(size_t reg) { 71314564Sdim RegisterInfo *reg_info = m_reg_info.GetRegisterInfoAtIndex(reg); 72309124Sdim 73314564Sdim if (reg_info && reg_info->dynamic_size_dwarf_expr_bytes) { 74314564Sdim const ArchSpec &arch = m_thread.GetProcess()->GetTarget().GetArchitecture(); 75314564Sdim uint8_t reg_size = UpdateDynamicRegisterSize(arch, reg_info); 76314564Sdim reg_info->byte_size = reg_size; 77314564Sdim } 78314564Sdim return reg_info; 79254721Semaste} 80254721Semaste 81314564Sdimsize_t GDBRemoteRegisterContext::GetRegisterSetCount() { 82314564Sdim return m_reg_info.GetNumRegisterSets(); 83254721Semaste} 84254721Semaste 85314564Sdimconst RegisterSet *GDBRemoteRegisterContext::GetRegisterSet(size_t reg_set) { 86314564Sdim return m_reg_info.GetRegisterSet(reg_set); 87314564Sdim} 88254721Semaste 89314564Sdimbool GDBRemoteRegisterContext::ReadRegister(const RegisterInfo *reg_info, 90314564Sdim RegisterValue &value) { 91314564Sdim // Read the register 92314564Sdim if (ReadRegisterBytes(reg_info, m_reg_data)) { 93314564Sdim const bool partial_data_ok = false; 94321369Sdim Status error(value.SetValueFromData( 95321369Sdim reg_info, m_reg_data, reg_info->byte_offset, partial_data_ok)); 96314564Sdim return error.Success(); 97314564Sdim } 98314564Sdim return false; 99254721Semaste} 100254721Semaste 101314564Sdimbool GDBRemoteRegisterContext::PrivateSetRegisterValue( 102314564Sdim uint32_t reg, llvm::ArrayRef<uint8_t> data) { 103314564Sdim const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg); 104314564Sdim if (reg_info == NULL) 105254721Semaste return false; 106254721Semaste 107314564Sdim // Invalidate if needed 108314564Sdim InvalidateIfNeeded(false); 109254721Semaste 110314564Sdim const size_t reg_byte_size = reg_info->byte_size; 111314564Sdim memcpy(const_cast<uint8_t *>( 112314564Sdim m_reg_data.PeekData(reg_info->byte_offset, reg_byte_size)), 113314564Sdim data.data(), std::min(data.size(), reg_byte_size)); 114314564Sdim bool success = data.size() >= reg_byte_size; 115314564Sdim if (success) { 116314564Sdim SetRegisterIsValid(reg, true); 117314564Sdim } else if (data.size() > 0) { 118341825Sdim // Only set register is valid to false if we copied some bytes, else leave 119341825Sdim // it as it was. 120314564Sdim SetRegisterIsValid(reg, false); 121314564Sdim } 122314564Sdim return success; 123254721Semaste} 124254721Semaste 125314564Sdimbool GDBRemoteRegisterContext::PrivateSetRegisterValue(uint32_t reg, 126314564Sdim uint64_t new_reg_val) { 127314564Sdim const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg); 128314564Sdim if (reg_info == NULL) 129314564Sdim return false; 130296417Sdim 131314564Sdim // Early in process startup, we can get a thread that has an invalid byte 132341825Sdim // order because the process hasn't been completely set up yet (see the ctor 133341825Sdim // where the byte order is setfrom the process). If that's the case, we 134341825Sdim // can't set the value here. 135314564Sdim if (m_reg_data.GetByteOrder() == eByteOrderInvalid) { 136314564Sdim return false; 137314564Sdim } 138296417Sdim 139314564Sdim // Invalidate if needed 140314564Sdim InvalidateIfNeeded(false); 141296417Sdim 142314564Sdim DataBufferSP buffer_sp(new DataBufferHeap(&new_reg_val, sizeof(new_reg_val))); 143314564Sdim DataExtractor data(buffer_sp, endian::InlHostByteOrder(), sizeof(void *)); 144296417Sdim 145314564Sdim // If our register context and our register info disagree, which should never 146341825Sdim // happen, don't overwrite past the end of the buffer. 147314564Sdim if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 148314564Sdim return false; 149296417Sdim 150314564Sdim // Grab a pointer to where we are going to put this register 151314564Sdim uint8_t *dst = const_cast<uint8_t *>( 152314564Sdim m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size)); 153296417Sdim 154314564Sdim if (dst == NULL) 155314564Sdim return false; 156296417Sdim 157314564Sdim if (data.CopyByteOrderedData(0, // src offset 158314564Sdim reg_info->byte_size, // src length 159314564Sdim dst, // dst 160314564Sdim reg_info->byte_size, // dst length 161314564Sdim m_reg_data.GetByteOrder())) // dst byte order 162314564Sdim { 163314564Sdim SetRegisterIsValid(reg, true); 164314564Sdim return true; 165314564Sdim } 166314564Sdim return false; 167296417Sdim} 168296417Sdim 169254721Semaste// Helper function for GDBRemoteRegisterContext::ReadRegisterBytes(). 170314564Sdimbool GDBRemoteRegisterContext::GetPrimordialRegister( 171314564Sdim const RegisterInfo *reg_info, GDBRemoteCommunicationClient &gdb_comm) { 172314564Sdim const uint32_t lldb_reg = reg_info->kinds[eRegisterKindLLDB]; 173314564Sdim const uint32_t remote_reg = reg_info->kinds[eRegisterKindProcessPlugin]; 174327952Sdim 175314564Sdim if (DataBufferSP buffer_sp = 176314564Sdim gdb_comm.ReadRegister(m_thread.GetProtocolID(), remote_reg)) 177314564Sdim return PrivateSetRegisterValue( 178314564Sdim lldb_reg, llvm::ArrayRef<uint8_t>(buffer_sp->GetBytes(), 179314564Sdim buffer_sp->GetByteSize())); 180314564Sdim return false; 181254721Semaste} 182258884Semaste 183314564Sdimbool GDBRemoteRegisterContext::ReadRegisterBytes(const RegisterInfo *reg_info, 184314564Sdim DataExtractor &data) { 185314564Sdim ExecutionContext exe_ctx(CalculateThread()); 186254721Semaste 187314564Sdim Process *process = exe_ctx.GetProcessPtr(); 188314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 189314564Sdim if (process == NULL || thread == NULL) 190314564Sdim return false; 191254721Semaste 192314564Sdim GDBRemoteCommunicationClient &gdb_comm( 193314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 194254721Semaste 195314564Sdim InvalidateIfNeeded(false); 196254721Semaste 197314564Sdim const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 198254721Semaste 199314564Sdim if (!GetRegisterIsValid(reg)) { 200314564Sdim if (m_read_all_at_once) { 201314564Sdim if (DataBufferSP buffer_sp = 202314564Sdim gdb_comm.ReadAllRegisters(m_thread.GetProtocolID())) { 203314564Sdim memcpy(const_cast<uint8_t *>(m_reg_data.GetDataStart()), 204314564Sdim buffer_sp->GetBytes(), 205314564Sdim std::min(buffer_sp->GetByteSize(), m_reg_data.GetByteSize())); 206314564Sdim if (buffer_sp->GetByteSize() >= m_reg_data.GetByteSize()) { 207314564Sdim SetAllRegisterValid(true); 208314564Sdim return true; 209258884Semaste } 210314564Sdim } 211314564Sdim return false; 212314564Sdim } 213314564Sdim if (reg_info->value_regs) { 214314564Sdim // Process this composite register request by delegating to the 215341825Sdim // constituent primordial registers. 216258884Semaste 217314564Sdim // Index of the primordial register. 218314564Sdim bool success = true; 219314564Sdim for (uint32_t idx = 0; success; ++idx) { 220314564Sdim const uint32_t prim_reg = reg_info->value_regs[idx]; 221314564Sdim if (prim_reg == LLDB_INVALID_REGNUM) 222314564Sdim break; 223341825Sdim // We have a valid primordial register as our constituent. Grab the 224341825Sdim // corresponding register info. 225314564Sdim const RegisterInfo *prim_reg_info = GetRegisterInfoAtIndex(prim_reg); 226314564Sdim if (prim_reg_info == NULL) 227314564Sdim success = false; 228314564Sdim else { 229314564Sdim // Read the containing register if it hasn't already been read 230314564Sdim if (!GetRegisterIsValid(prim_reg)) 231314564Sdim success = GetPrimordialRegister(prim_reg_info, gdb_comm); 232254721Semaste } 233314564Sdim } 234254721Semaste 235314564Sdim if (success) { 236314564Sdim // If we reach this point, all primordial register requests have 237341825Sdim // succeeded. Validate this composite register. 238314564Sdim SetRegisterIsValid(reg_info, true); 239314564Sdim } 240314564Sdim } else { 241314564Sdim // Get each register individually 242314564Sdim GetPrimordialRegister(reg_info, gdb_comm); 243254721Semaste } 244254721Semaste 245314564Sdim // Make sure we got a valid register value after reading it 246314564Sdim if (!GetRegisterIsValid(reg)) 247314564Sdim return false; 248314564Sdim } 249276479Sdim 250314564Sdim if (&data != &m_reg_data) { 251314564Sdim#if defined(LLDB_CONFIGURATION_DEBUG) 252314564Sdim assert(m_reg_data.GetByteSize() >= 253314564Sdim reg_info->byte_offset + reg_info->byte_size); 254314564Sdim#endif 255314564Sdim // If our register context and our register info disagree, which should 256341825Sdim // never happen, don't read past the end of the buffer. 257314564Sdim if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 258314564Sdim return false; 259276479Sdim 260341825Sdim // If we aren't extracting into our own buffer (which only happens when 261341825Sdim // this function is called from ReadRegisterValue(uint32_t, Scalar&)) then 262341825Sdim // we transfer bytes from our buffer into the data buffer that was passed 263341825Sdim // in 264314564Sdim 265314564Sdim data.SetByteOrder(m_reg_data.GetByteOrder()); 266314564Sdim data.SetData(m_reg_data, reg_info->byte_offset, reg_info->byte_size); 267314564Sdim } 268314564Sdim return true; 269254721Semaste} 270254721Semaste 271314564Sdimbool GDBRemoteRegisterContext::WriteRegister(const RegisterInfo *reg_info, 272314564Sdim const RegisterValue &value) { 273314564Sdim DataExtractor data; 274314564Sdim if (value.GetData(data)) 275314564Sdim return WriteRegisterBytes(reg_info, data, 0); 276314564Sdim return false; 277254721Semaste} 278254721Semaste 279254721Semaste// Helper function for GDBRemoteRegisterContext::WriteRegisterBytes(). 280314564Sdimbool GDBRemoteRegisterContext::SetPrimordialRegister( 281314564Sdim const RegisterInfo *reg_info, GDBRemoteCommunicationClient &gdb_comm) { 282314564Sdim StreamString packet; 283314564Sdim StringExtractorGDBRemote response; 284314564Sdim const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 285314564Sdim // Invalidate just this register 286314564Sdim SetRegisterIsValid(reg, false); 287254721Semaste 288314564Sdim return gdb_comm.WriteRegister( 289314564Sdim m_thread.GetProtocolID(), reg_info->kinds[eRegisterKindProcessPlugin], 290314564Sdim {m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size), 291314564Sdim reg_info->byte_size}); 292254721Semaste} 293254721Semaste 294314564Sdimbool GDBRemoteRegisterContext::WriteRegisterBytes(const RegisterInfo *reg_info, 295314564Sdim DataExtractor &data, 296314564Sdim uint32_t data_offset) { 297314564Sdim ExecutionContext exe_ctx(CalculateThread()); 298254721Semaste 299314564Sdim Process *process = exe_ctx.GetProcessPtr(); 300314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 301314564Sdim if (process == NULL || thread == NULL) 302314564Sdim return false; 303254721Semaste 304314564Sdim GDBRemoteCommunicationClient &gdb_comm( 305314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 306254721Semaste 307314564Sdim#if defined(LLDB_CONFIGURATION_DEBUG) 308314564Sdim assert(m_reg_data.GetByteSize() >= 309314564Sdim reg_info->byte_offset + reg_info->byte_size); 310314564Sdim#endif 311254721Semaste 312314564Sdim // If our register context and our register info disagree, which should never 313341825Sdim // happen, don't overwrite past the end of the buffer. 314314564Sdim if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 315314564Sdim return false; 316254721Semaste 317314564Sdim // Grab a pointer to where we are going to put this register 318314564Sdim uint8_t *dst = const_cast<uint8_t *>( 319314564Sdim m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size)); 320276479Sdim 321314564Sdim if (dst == NULL) 322314564Sdim return false; 323276479Sdim 324314564Sdim if (data.CopyByteOrderedData(data_offset, // src offset 325314564Sdim reg_info->byte_size, // src length 326314564Sdim dst, // dst 327314564Sdim reg_info->byte_size, // dst length 328314564Sdim m_reg_data.GetByteOrder())) // dst byte order 329314564Sdim { 330314564Sdim GDBRemoteClientBase::Lock lock(gdb_comm, false); 331314564Sdim if (lock) { 332314564Sdim if (m_read_all_at_once) { 333314564Sdim // Invalidate all register values 334314564Sdim InvalidateIfNeeded(true); 335276479Sdim 336314564Sdim // Set all registers in one packet 337314564Sdim if (gdb_comm.WriteAllRegisters( 338314564Sdim m_thread.GetProtocolID(), 339314564Sdim {m_reg_data.GetDataStart(), size_t(m_reg_data.GetByteSize())})) 340254721Semaste 341254721Semaste { 342314564Sdim SetAllRegisterValid(false); 343314564Sdim return true; 344314564Sdim } 345314564Sdim } else { 346314564Sdim bool success = true; 347254721Semaste 348314564Sdim if (reg_info->value_regs) { 349341825Sdim // This register is part of another register. In this case we read 350341825Sdim // the actual register data for any "value_regs", and once all that 351341825Sdim // data is read, we will have enough data in our register context 352341825Sdim // bytes for the value of this register 353254721Semaste 354314564Sdim // Invalidate this composite register first. 355254721Semaste 356314564Sdim for (uint32_t idx = 0; success; ++idx) { 357314564Sdim const uint32_t reg = reg_info->value_regs[idx]; 358314564Sdim if (reg == LLDB_INVALID_REGNUM) 359314564Sdim break; 360341825Sdim // We have a valid primordial register as our constituent. Grab the 361341825Sdim // corresponding register info. 362314564Sdim const RegisterInfo *value_reg_info = GetRegisterInfoAtIndex(reg); 363314564Sdim if (value_reg_info == NULL) 364314564Sdim success = false; 365314564Sdim else 366314564Sdim success = SetPrimordialRegister(value_reg_info, gdb_comm); 367314564Sdim } 368314564Sdim } else { 369314564Sdim // This is an actual register, write it 370314564Sdim success = SetPrimordialRegister(reg_info, gdb_comm); 371314564Sdim } 372254721Semaste 373314564Sdim // Check if writing this register will invalidate any other register 374341825Sdim // values? If so, invalidate them 375314564Sdim if (reg_info->invalidate_regs) { 376314564Sdim for (uint32_t idx = 0, reg = reg_info->invalidate_regs[0]; 377314564Sdim reg != LLDB_INVALID_REGNUM; 378314564Sdim reg = reg_info->invalidate_regs[++idx]) { 379314564Sdim SetRegisterIsValid(reg, false); 380314564Sdim } 381314564Sdim } 382254721Semaste 383314564Sdim return success; 384314564Sdim } 385314564Sdim } else { 386314564Sdim Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 387314564Sdim GDBR_LOG_PACKETS)); 388314564Sdim if (log) { 389314564Sdim if (log->GetVerbose()) { 390314564Sdim StreamString strm; 391314564Sdim gdb_comm.DumpHistory(strm); 392314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 393314564Sdim "write register for \"%s\":\n%s", 394314564Sdim reg_info->name, strm.GetData()); 395314564Sdim } else 396314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 397314564Sdim "write register for \"%s\"", 398314564Sdim reg_info->name); 399314564Sdim } 400254721Semaste } 401314564Sdim } 402314564Sdim return false; 403254721Semaste} 404254721Semaste 405314564Sdimbool GDBRemoteRegisterContext::ReadAllRegisterValues( 406314564Sdim RegisterCheckpoint ®_checkpoint) { 407314564Sdim ExecutionContext exe_ctx(CalculateThread()); 408254721Semaste 409314564Sdim Process *process = exe_ctx.GetProcessPtr(); 410314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 411314564Sdim if (process == NULL || thread == NULL) 412314564Sdim return false; 413258884Semaste 414314564Sdim GDBRemoteCommunicationClient &gdb_comm( 415314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 416314564Sdim 417314564Sdim uint32_t save_id = 0; 418314564Sdim if (gdb_comm.SaveRegisterState(thread->GetProtocolID(), save_id)) { 419314564Sdim reg_checkpoint.SetID(save_id); 420314564Sdim reg_checkpoint.GetData().reset(); 421314564Sdim return true; 422314564Sdim } else { 423314564Sdim reg_checkpoint.SetID(0); // Invalid save ID is zero 424314564Sdim return ReadAllRegisterValues(reg_checkpoint.GetData()); 425314564Sdim } 426258884Semaste} 427258884Semaste 428314564Sdimbool GDBRemoteRegisterContext::WriteAllRegisterValues( 429314564Sdim const RegisterCheckpoint ®_checkpoint) { 430314564Sdim uint32_t save_id = reg_checkpoint.GetID(); 431314564Sdim if (save_id != 0) { 432314564Sdim ExecutionContext exe_ctx(CalculateThread()); 433254721Semaste 434254721Semaste Process *process = exe_ctx.GetProcessPtr(); 435254721Semaste Thread *thread = exe_ctx.GetThreadPtr(); 436254721Semaste if (process == NULL || thread == NULL) 437314564Sdim return false; 438254721Semaste 439314564Sdim GDBRemoteCommunicationClient &gdb_comm( 440314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 441254721Semaste 442314564Sdim return gdb_comm.RestoreRegisterState(m_thread.GetProtocolID(), save_id); 443314564Sdim } else { 444314564Sdim return WriteAllRegisterValues(reg_checkpoint.GetData()); 445314564Sdim } 446314564Sdim} 447254721Semaste 448314564Sdimbool GDBRemoteRegisterContext::ReadAllRegisterValues( 449314564Sdim lldb::DataBufferSP &data_sp) { 450314564Sdim ExecutionContext exe_ctx(CalculateThread()); 451276479Sdim 452314564Sdim Process *process = exe_ctx.GetProcessPtr(); 453314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 454314564Sdim if (process == NULL || thread == NULL) 455314564Sdim return false; 456254721Semaste 457314564Sdim GDBRemoteCommunicationClient &gdb_comm( 458314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 459276479Sdim 460314564Sdim const bool use_g_packet = 461344779Sdim !gdb_comm.AvoidGPackets((ProcessGDBRemote *)process); 462276479Sdim 463314564Sdim GDBRemoteClientBase::Lock lock(gdb_comm, false); 464314564Sdim if (lock) { 465314564Sdim if (gdb_comm.SyncThreadState(m_thread.GetProtocolID())) 466314564Sdim InvalidateAllRegisters(); 467276479Sdim 468314564Sdim if (use_g_packet && 469314564Sdim (data_sp = gdb_comm.ReadAllRegisters(m_thread.GetProtocolID()))) 470314564Sdim return true; 471314564Sdim 472314564Sdim // We're going to read each register 473314564Sdim // individually and store them as binary data in a buffer. 474314564Sdim const RegisterInfo *reg_info; 475314564Sdim 476314564Sdim for (uint32_t i = 0; (reg_info = GetRegisterInfoAtIndex(i)) != NULL; i++) { 477314564Sdim if (reg_info 478314564Sdim ->value_regs) // skip registers that are slices of real registers 479314564Sdim continue; 480314564Sdim ReadRegisterBytes(reg_info, m_reg_data); 481314564Sdim // ReadRegisterBytes saves the contents of the register in to the 482314564Sdim // m_reg_data buffer 483254721Semaste } 484314564Sdim data_sp.reset(new DataBufferHeap(m_reg_data.GetDataStart(), 485314564Sdim m_reg_info.GetRegisterDataByteSize())); 486314564Sdim return true; 487314564Sdim } else { 488276479Sdim 489314564Sdim Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 490314564Sdim GDBR_LOG_PACKETS)); 491314564Sdim if (log) { 492314564Sdim if (log->GetVerbose()) { 493314564Sdim StreamString strm; 494314564Sdim gdb_comm.DumpHistory(strm); 495314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 496314564Sdim "read all registers:\n%s", 497314564Sdim strm.GetData()); 498314564Sdim } else 499314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 500314564Sdim "read all registers"); 501254721Semaste } 502314564Sdim } 503254721Semaste 504314564Sdim data_sp.reset(); 505314564Sdim return false; 506254721Semaste} 507254721Semaste 508314564Sdimbool GDBRemoteRegisterContext::WriteAllRegisterValues( 509314564Sdim const lldb::DataBufferSP &data_sp) { 510314564Sdim if (!data_sp || data_sp->GetBytes() == NULL || data_sp->GetByteSize() == 0) 511314564Sdim return false; 512254721Semaste 513314564Sdim ExecutionContext exe_ctx(CalculateThread()); 514254721Semaste 515314564Sdim Process *process = exe_ctx.GetProcessPtr(); 516314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 517314564Sdim if (process == NULL || thread == NULL) 518314564Sdim return false; 519254721Semaste 520314564Sdim GDBRemoteCommunicationClient &gdb_comm( 521314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 522254721Semaste 523314564Sdim const bool use_g_packet = 524344779Sdim !gdb_comm.AvoidGPackets((ProcessGDBRemote *)process); 525276479Sdim 526314564Sdim GDBRemoteClientBase::Lock lock(gdb_comm, false); 527314564Sdim if (lock) { 528314564Sdim // The data_sp contains the G response packet. 529314564Sdim if (use_g_packet) { 530314564Sdim if (gdb_comm.WriteAllRegisters( 531314564Sdim m_thread.GetProtocolID(), 532314564Sdim {data_sp->GetBytes(), size_t(data_sp->GetByteSize())})) 533314564Sdim return true; 534254721Semaste 535314564Sdim uint32_t num_restored = 0; 536341825Sdim // We need to manually go through all of the registers and restore them 537341825Sdim // manually 538314564Sdim DataExtractor restore_data(data_sp, m_reg_data.GetByteOrder(), 539314564Sdim m_reg_data.GetAddressByteSize()); 540288943Sdim 541314564Sdim const RegisterInfo *reg_info; 542288943Sdim 543341825Sdim // The g packet contents may either include the slice registers 544341825Sdim // (registers defined in terms of other registers, e.g. eax is a subset 545341825Sdim // of rax) or not. The slice registers should NOT be in the g packet, 546341825Sdim // but some implementations may incorrectly include them. 547314564Sdim // 548314564Sdim // If the slice registers are included in the packet, we must step over 549341825Sdim // the slice registers when parsing the packet -- relying on the 550341825Sdim // RegisterInfo byte_offset field would be incorrect. If the slice 551341825Sdim // registers are not included, then using the byte_offset values into the 552314564Sdim // data buffer is the best way to find individual register values. 553288943Sdim 554314564Sdim uint64_t size_including_slice_registers = 0; 555314564Sdim uint64_t size_not_including_slice_registers = 0; 556314564Sdim uint64_t size_by_highest_offset = 0; 557254721Semaste 558314564Sdim for (uint32_t reg_idx = 0; 559314564Sdim (reg_info = GetRegisterInfoAtIndex(reg_idx)) != NULL; ++reg_idx) { 560314564Sdim size_including_slice_registers += reg_info->byte_size; 561314564Sdim if (reg_info->value_regs == NULL) 562314564Sdim size_not_including_slice_registers += reg_info->byte_size; 563314564Sdim if (reg_info->byte_offset >= size_by_highest_offset) 564314564Sdim size_by_highest_offset = reg_info->byte_offset + reg_info->byte_size; 565314564Sdim } 566254721Semaste 567314564Sdim bool use_byte_offset_into_buffer; 568314564Sdim if (size_by_highest_offset == restore_data.GetByteSize()) { 569314564Sdim // The size of the packet agrees with the highest offset: + size in the 570314564Sdim // register file 571314564Sdim use_byte_offset_into_buffer = true; 572314564Sdim } else if (size_not_including_slice_registers == 573314564Sdim restore_data.GetByteSize()) { 574314564Sdim // The size of the packet is the same as concatenating all of the 575341825Sdim // registers sequentially, skipping the slice registers 576314564Sdim use_byte_offset_into_buffer = true; 577314564Sdim } else if (size_including_slice_registers == restore_data.GetByteSize()) { 578314564Sdim // The slice registers are present in the packet (when they shouldn't 579341825Sdim // be). Don't try to use the RegisterInfo byte_offset into the 580341825Sdim // restore_data, it will point to the wrong place. 581314564Sdim use_byte_offset_into_buffer = false; 582314564Sdim } else { 583314564Sdim // None of our expected sizes match the actual g packet data we're 584341825Sdim // looking at. The most conservative approach here is to use the 585341825Sdim // running total byte offset. 586314564Sdim use_byte_offset_into_buffer = false; 587314564Sdim } 588254721Semaste 589314564Sdim // In case our register definitions don't include the correct offsets, 590314564Sdim // keep track of the size of each reg & compute offset based on that. 591314564Sdim uint32_t running_byte_offset = 0; 592314564Sdim for (uint32_t reg_idx = 0; 593314564Sdim (reg_info = GetRegisterInfoAtIndex(reg_idx)) != NULL; 594314564Sdim ++reg_idx, running_byte_offset += reg_info->byte_size) { 595314564Sdim // Skip composite aka slice registers (e.g. eax is a slice of rax). 596314564Sdim if (reg_info->value_regs) 597314564Sdim continue; 598254721Semaste 599314564Sdim const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 600254721Semaste 601314564Sdim uint32_t register_offset; 602314564Sdim if (use_byte_offset_into_buffer) { 603314564Sdim register_offset = reg_info->byte_offset; 604314564Sdim } else { 605314564Sdim register_offset = running_byte_offset; 606314564Sdim } 607254721Semaste 608314564Sdim const uint32_t reg_byte_size = reg_info->byte_size; 609276479Sdim 610314564Sdim const uint8_t *restore_src = 611314564Sdim restore_data.PeekData(register_offset, reg_byte_size); 612314564Sdim if (restore_src) { 613314564Sdim SetRegisterIsValid(reg, false); 614314564Sdim if (gdb_comm.WriteRegister( 615314564Sdim m_thread.GetProtocolID(), 616314564Sdim reg_info->kinds[eRegisterKindProcessPlugin], 617314564Sdim {restore_src, reg_byte_size})) 618314564Sdim ++num_restored; 619314564Sdim } 620314564Sdim } 621314564Sdim return num_restored > 0; 622314564Sdim } else { 623314564Sdim // For the use_g_packet == false case, we're going to write each register 624314564Sdim // individually. The data buffer is binary data in this case, instead of 625314564Sdim // ascii characters. 626254721Semaste 627314564Sdim bool arm64_debugserver = false; 628314564Sdim if (m_thread.GetProcess().get()) { 629314564Sdim const ArchSpec &arch = 630314564Sdim m_thread.GetProcess()->GetTarget().GetArchitecture(); 631314564Sdim if (arch.IsValid() && arch.GetMachine() == llvm::Triple::aarch64 && 632314564Sdim arch.GetTriple().getVendor() == llvm::Triple::Apple && 633314564Sdim arch.GetTriple().getOS() == llvm::Triple::IOS) { 634314564Sdim arm64_debugserver = true; 635254721Semaste } 636314564Sdim } 637314564Sdim uint32_t num_restored = 0; 638314564Sdim const RegisterInfo *reg_info; 639314564Sdim for (uint32_t i = 0; (reg_info = GetRegisterInfoAtIndex(i)) != NULL; 640314564Sdim i++) { 641314564Sdim if (reg_info->value_regs) // skip registers that are slices of real 642314564Sdim // registers 643314564Sdim continue; 644341825Sdim // Skip the fpsr and fpcr floating point status/control register 645341825Sdim // writing to work around a bug in an older version of debugserver that 646341825Sdim // would lead to register context corruption when writing fpsr/fpcr. 647314564Sdim if (arm64_debugserver && (strcmp(reg_info->name, "fpsr") == 0 || 648314564Sdim strcmp(reg_info->name, "fpcr") == 0)) { 649314564Sdim continue; 650254721Semaste } 651314564Sdim 652314564Sdim SetRegisterIsValid(reg_info, false); 653314564Sdim if (gdb_comm.WriteRegister(m_thread.GetProtocolID(), 654314564Sdim reg_info->kinds[eRegisterKindProcessPlugin], 655314564Sdim {data_sp->GetBytes() + reg_info->byte_offset, 656314564Sdim reg_info->byte_size})) 657314564Sdim ++num_restored; 658314564Sdim } 659314564Sdim return num_restored > 0; 660254721Semaste } 661314564Sdim } else { 662314564Sdim Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 663314564Sdim GDBR_LOG_PACKETS)); 664314564Sdim if (log) { 665314564Sdim if (log->GetVerbose()) { 666314564Sdim StreamString strm; 667314564Sdim gdb_comm.DumpHistory(strm); 668314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 669314564Sdim "write all registers:\n%s", 670314564Sdim strm.GetData()); 671314564Sdim } else 672314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 673314564Sdim "write all registers"); 674314564Sdim } 675314564Sdim } 676314564Sdim return false; 677254721Semaste} 678254721Semaste 679314564Sdimuint32_t GDBRemoteRegisterContext::ConvertRegisterKindToRegisterNumber( 680314564Sdim lldb::RegisterKind kind, uint32_t num) { 681314564Sdim return m_reg_info.ConvertRegisterKindToRegisterNumber(kind, num); 682254721Semaste} 683254721Semaste 684314564Sdimvoid GDBRemoteDynamicRegisterInfo::HardcodeARMRegisters(bool from_scratch) { 685314564Sdim // For Advanced SIMD and VFP register mapping. 686314564Sdim static uint32_t g_d0_regs[] = {26, 27, LLDB_INVALID_REGNUM}; // (s0, s1) 687314564Sdim static uint32_t g_d1_regs[] = {28, 29, LLDB_INVALID_REGNUM}; // (s2, s3) 688314564Sdim static uint32_t g_d2_regs[] = {30, 31, LLDB_INVALID_REGNUM}; // (s4, s5) 689314564Sdim static uint32_t g_d3_regs[] = {32, 33, LLDB_INVALID_REGNUM}; // (s6, s7) 690314564Sdim static uint32_t g_d4_regs[] = {34, 35, LLDB_INVALID_REGNUM}; // (s8, s9) 691314564Sdim static uint32_t g_d5_regs[] = {36, 37, LLDB_INVALID_REGNUM}; // (s10, s11) 692314564Sdim static uint32_t g_d6_regs[] = {38, 39, LLDB_INVALID_REGNUM}; // (s12, s13) 693314564Sdim static uint32_t g_d7_regs[] = {40, 41, LLDB_INVALID_REGNUM}; // (s14, s15) 694314564Sdim static uint32_t g_d8_regs[] = {42, 43, LLDB_INVALID_REGNUM}; // (s16, s17) 695314564Sdim static uint32_t g_d9_regs[] = {44, 45, LLDB_INVALID_REGNUM}; // (s18, s19) 696314564Sdim static uint32_t g_d10_regs[] = {46, 47, LLDB_INVALID_REGNUM}; // (s20, s21) 697314564Sdim static uint32_t g_d11_regs[] = {48, 49, LLDB_INVALID_REGNUM}; // (s22, s23) 698314564Sdim static uint32_t g_d12_regs[] = {50, 51, LLDB_INVALID_REGNUM}; // (s24, s25) 699314564Sdim static uint32_t g_d13_regs[] = {52, 53, LLDB_INVALID_REGNUM}; // (s26, s27) 700314564Sdim static uint32_t g_d14_regs[] = {54, 55, LLDB_INVALID_REGNUM}; // (s28, s29) 701314564Sdim static uint32_t g_d15_regs[] = {56, 57, LLDB_INVALID_REGNUM}; // (s30, s31) 702314564Sdim static uint32_t g_q0_regs[] = { 703314564Sdim 26, 27, 28, 29, LLDB_INVALID_REGNUM}; // (d0, d1) -> (s0, s1, s2, s3) 704314564Sdim static uint32_t g_q1_regs[] = { 705314564Sdim 30, 31, 32, 33, LLDB_INVALID_REGNUM}; // (d2, d3) -> (s4, s5, s6, s7) 706314564Sdim static uint32_t g_q2_regs[] = { 707314564Sdim 34, 35, 36, 37, LLDB_INVALID_REGNUM}; // (d4, d5) -> (s8, s9, s10, s11) 708314564Sdim static uint32_t g_q3_regs[] = { 709314564Sdim 38, 39, 40, 41, LLDB_INVALID_REGNUM}; // (d6, d7) -> (s12, s13, s14, s15) 710314564Sdim static uint32_t g_q4_regs[] = { 711314564Sdim 42, 43, 44, 45, LLDB_INVALID_REGNUM}; // (d8, d9) -> (s16, s17, s18, s19) 712314564Sdim static uint32_t g_q5_regs[] = { 713314564Sdim 46, 47, 48, 49, 714314564Sdim LLDB_INVALID_REGNUM}; // (d10, d11) -> (s20, s21, s22, s23) 715314564Sdim static uint32_t g_q6_regs[] = { 716314564Sdim 50, 51, 52, 53, 717314564Sdim LLDB_INVALID_REGNUM}; // (d12, d13) -> (s24, s25, s26, s27) 718314564Sdim static uint32_t g_q7_regs[] = { 719314564Sdim 54, 55, 56, 57, 720314564Sdim LLDB_INVALID_REGNUM}; // (d14, d15) -> (s28, s29, s30, s31) 721314564Sdim static uint32_t g_q8_regs[] = {59, 60, LLDB_INVALID_REGNUM}; // (d16, d17) 722314564Sdim static uint32_t g_q9_regs[] = {61, 62, LLDB_INVALID_REGNUM}; // (d18, d19) 723314564Sdim static uint32_t g_q10_regs[] = {63, 64, LLDB_INVALID_REGNUM}; // (d20, d21) 724314564Sdim static uint32_t g_q11_regs[] = {65, 66, LLDB_INVALID_REGNUM}; // (d22, d23) 725314564Sdim static uint32_t g_q12_regs[] = {67, 68, LLDB_INVALID_REGNUM}; // (d24, d25) 726314564Sdim static uint32_t g_q13_regs[] = {69, 70, LLDB_INVALID_REGNUM}; // (d26, d27) 727314564Sdim static uint32_t g_q14_regs[] = {71, 72, LLDB_INVALID_REGNUM}; // (d28, d29) 728314564Sdim static uint32_t g_q15_regs[] = {73, 74, LLDB_INVALID_REGNUM}; // (d30, d31) 729258054Semaste 730341825Sdim // This is our array of composite registers, with each element coming from 731341825Sdim // the above register mappings. 732314564Sdim static uint32_t *g_composites[] = { 733314564Sdim g_d0_regs, g_d1_regs, g_d2_regs, g_d3_regs, g_d4_regs, g_d5_regs, 734314564Sdim g_d6_regs, g_d7_regs, g_d8_regs, g_d9_regs, g_d10_regs, g_d11_regs, 735314564Sdim g_d12_regs, g_d13_regs, g_d14_regs, g_d15_regs, g_q0_regs, g_q1_regs, 736314564Sdim g_q2_regs, g_q3_regs, g_q4_regs, g_q5_regs, g_q6_regs, g_q7_regs, 737314564Sdim g_q8_regs, g_q9_regs, g_q10_regs, g_q11_regs, g_q12_regs, g_q13_regs, 738314564Sdim g_q14_regs, g_q15_regs}; 739254721Semaste 740314564Sdim // clang-format off 741254721Semaste static RegisterInfo g_register_infos[] = { 742314564Sdim// NAME ALT SZ OFF ENCODING FORMAT EH_FRAME DWARF GENERIC PROCESS PLUGIN LLDB VALUE REGS INVALIDATE REGS SIZE EXPR SIZE LEN 743314564Sdim// ====== ====== === === ============= ========== =================== =================== ====================== ============= ==== ========== =============== ========= ======== 744314564Sdim { "r0", "arg1", 4, 0, eEncodingUint, eFormatHex, { ehframe_r0, dwarf_r0, LLDB_REGNUM_GENERIC_ARG1,0, 0 }, nullptr, nullptr, nullptr, 0 }, 745314564Sdim { "r1", "arg2", 4, 0, eEncodingUint, eFormatHex, { ehframe_r1, dwarf_r1, LLDB_REGNUM_GENERIC_ARG2,1, 1 }, nullptr, nullptr, nullptr, 0 }, 746314564Sdim { "r2", "arg3", 4, 0, eEncodingUint, eFormatHex, { ehframe_r2, dwarf_r2, LLDB_REGNUM_GENERIC_ARG3,2, 2 }, nullptr, nullptr, nullptr, 0 }, 747314564Sdim { "r3", "arg4", 4, 0, eEncodingUint, eFormatHex, { ehframe_r3, dwarf_r3, LLDB_REGNUM_GENERIC_ARG4,3, 3 }, nullptr, nullptr, nullptr, 0 }, 748314564Sdim { "r4", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r4, dwarf_r4, LLDB_INVALID_REGNUM, 4, 4 }, nullptr, nullptr, nullptr, 0 }, 749314564Sdim { "r5", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r5, dwarf_r5, LLDB_INVALID_REGNUM, 5, 5 }, nullptr, nullptr, nullptr, 0 }, 750314564Sdim { "r6", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r6, dwarf_r6, LLDB_INVALID_REGNUM, 6, 6 }, nullptr, nullptr, nullptr, 0 }, 751314564Sdim { "r7", "fp", 4, 0, eEncodingUint, eFormatHex, { ehframe_r7, dwarf_r7, LLDB_REGNUM_GENERIC_FP, 7, 7 }, nullptr, nullptr, nullptr, 0 }, 752314564Sdim { "r8", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r8, dwarf_r8, LLDB_INVALID_REGNUM, 8, 8 }, nullptr, nullptr, nullptr, 0 }, 753314564Sdim { "r9", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r9, dwarf_r9, LLDB_INVALID_REGNUM, 9, 9 }, nullptr, nullptr, nullptr, 0 }, 754314564Sdim { "r10", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r10, dwarf_r10, LLDB_INVALID_REGNUM, 10, 10 }, nullptr, nullptr, nullptr, 0 }, 755314564Sdim { "r11", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r11, dwarf_r11, LLDB_INVALID_REGNUM, 11, 11 }, nullptr, nullptr, nullptr, 0 }, 756314564Sdim { "r12", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r12, dwarf_r12, LLDB_INVALID_REGNUM, 12, 12 }, nullptr, nullptr, nullptr, 0 }, 757314564Sdim { "sp", "r13", 4, 0, eEncodingUint, eFormatHex, { ehframe_sp, dwarf_sp, LLDB_REGNUM_GENERIC_SP, 13, 13 }, nullptr, nullptr, nullptr, 0 }, 758314564Sdim { "lr", "r14", 4, 0, eEncodingUint, eFormatHex, { ehframe_lr, dwarf_lr, LLDB_REGNUM_GENERIC_RA, 14, 14 }, nullptr, nullptr, nullptr, 0 }, 759314564Sdim { "pc", "r15", 4, 0, eEncodingUint, eFormatHex, { ehframe_pc, dwarf_pc, LLDB_REGNUM_GENERIC_PC, 15, 15 }, nullptr, nullptr, nullptr, 0 }, 760314564Sdim { "f0", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 16, 16 }, nullptr, nullptr, nullptr, 0 }, 761314564Sdim { "f1", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 17, 17 }, nullptr, nullptr, nullptr, 0 }, 762314564Sdim { "f2", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 18, 18 }, nullptr, nullptr, nullptr, 0 }, 763314564Sdim { "f3", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 19, 19 }, nullptr, nullptr, nullptr, 0 }, 764314564Sdim { "f4", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 20, 20 }, nullptr, nullptr, nullptr, 0 }, 765314564Sdim { "f5", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 21, 21 }, nullptr, nullptr, nullptr, 0 }, 766314564Sdim { "f6", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 22, 22 }, nullptr, nullptr, nullptr, 0 }, 767314564Sdim { "f7", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 23, 23 }, nullptr, nullptr, nullptr, 0 }, 768314564Sdim { "fps", nullptr, 4, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 24, 24 }, nullptr, nullptr, nullptr, 0 }, 769314564Sdim { "cpsr","flags", 4, 0, eEncodingUint, eFormatHex, { ehframe_cpsr, dwarf_cpsr, LLDB_INVALID_REGNUM, 25, 25 }, nullptr, nullptr, nullptr, 0 }, 770314564Sdim { "s0", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s0, LLDB_INVALID_REGNUM, 26, 26 }, nullptr, nullptr, nullptr, 0 }, 771314564Sdim { "s1", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s1, LLDB_INVALID_REGNUM, 27, 27 }, nullptr, nullptr, nullptr, 0 }, 772314564Sdim { "s2", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s2, LLDB_INVALID_REGNUM, 28, 28 }, nullptr, nullptr, nullptr, 0 }, 773314564Sdim { "s3", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s3, LLDB_INVALID_REGNUM, 29, 29 }, nullptr, nullptr, nullptr, 0 }, 774314564Sdim { "s4", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s4, LLDB_INVALID_REGNUM, 30, 30 }, nullptr, nullptr, nullptr, 0 }, 775314564Sdim { "s5", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s5, LLDB_INVALID_REGNUM, 31, 31 }, nullptr, nullptr, nullptr, 0 }, 776314564Sdim { "s6", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s6, LLDB_INVALID_REGNUM, 32, 32 }, nullptr, nullptr, nullptr, 0 }, 777314564Sdim { "s7", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s7, LLDB_INVALID_REGNUM, 33, 33 }, nullptr, nullptr, nullptr, 0 }, 778314564Sdim { "s8", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s8, LLDB_INVALID_REGNUM, 34, 34 }, nullptr, nullptr, nullptr, 0 }, 779314564Sdim { "s9", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s9, LLDB_INVALID_REGNUM, 35, 35 }, nullptr, nullptr, nullptr, 0 }, 780314564Sdim { "s10", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s10, LLDB_INVALID_REGNUM, 36, 36 }, nullptr, nullptr, nullptr, 0 }, 781314564Sdim { "s11", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s11, LLDB_INVALID_REGNUM, 37, 37 }, nullptr, nullptr, nullptr, 0 }, 782314564Sdim { "s12", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s12, LLDB_INVALID_REGNUM, 38, 38 }, nullptr, nullptr, nullptr, 0 }, 783314564Sdim { "s13", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s13, LLDB_INVALID_REGNUM, 39, 39 }, nullptr, nullptr, nullptr, 0 }, 784314564Sdim { "s14", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s14, LLDB_INVALID_REGNUM, 40, 40 }, nullptr, nullptr, nullptr, 0 }, 785314564Sdim { "s15", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s15, LLDB_INVALID_REGNUM, 41, 41 }, nullptr, nullptr, nullptr, 0 }, 786314564Sdim { "s16", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s16, LLDB_INVALID_REGNUM, 42, 42 }, nullptr, nullptr, nullptr, 0 }, 787314564Sdim { "s17", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s17, LLDB_INVALID_REGNUM, 43, 43 }, nullptr, nullptr, nullptr, 0 }, 788314564Sdim { "s18", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s18, LLDB_INVALID_REGNUM, 44, 44 }, nullptr, nullptr, nullptr, 0 }, 789314564Sdim { "s19", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s19, LLDB_INVALID_REGNUM, 45, 45 }, nullptr, nullptr, nullptr, 0 }, 790314564Sdim { "s20", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s20, LLDB_INVALID_REGNUM, 46, 46 }, nullptr, nullptr, nullptr, 0 }, 791314564Sdim { "s21", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s21, LLDB_INVALID_REGNUM, 47, 47 }, nullptr, nullptr, nullptr, 0 }, 792314564Sdim { "s22", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s22, LLDB_INVALID_REGNUM, 48, 48 }, nullptr, nullptr, nullptr, 0 }, 793314564Sdim { "s23", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s23, LLDB_INVALID_REGNUM, 49, 49 }, nullptr, nullptr, nullptr, 0 }, 794314564Sdim { "s24", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s24, LLDB_INVALID_REGNUM, 50, 50 }, nullptr, nullptr, nullptr, 0 }, 795314564Sdim { "s25", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s25, LLDB_INVALID_REGNUM, 51, 51 }, nullptr, nullptr, nullptr, 0 }, 796314564Sdim { "s26", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s26, LLDB_INVALID_REGNUM, 52, 52 }, nullptr, nullptr, nullptr, 0 }, 797314564Sdim { "s27", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s27, LLDB_INVALID_REGNUM, 53, 53 }, nullptr, nullptr, nullptr, 0 }, 798314564Sdim { "s28", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s28, LLDB_INVALID_REGNUM, 54, 54 }, nullptr, nullptr, nullptr, 0 }, 799314564Sdim { "s29", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s29, LLDB_INVALID_REGNUM, 55, 55 }, nullptr, nullptr, nullptr, 0 }, 800314564Sdim { "s30", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s30, LLDB_INVALID_REGNUM, 56, 56 }, nullptr, nullptr, nullptr, 0 }, 801314564Sdim { "s31", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s31, LLDB_INVALID_REGNUM, 57, 57 }, nullptr, nullptr, nullptr, 0 }, 802314564Sdim { "fpscr",nullptr, 4, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 58, 58 }, nullptr, nullptr, nullptr, 0 }, 803314564Sdim { "d16", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d16, LLDB_INVALID_REGNUM, 59, 59 }, nullptr, nullptr, nullptr, 0 }, 804314564Sdim { "d17", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d17, LLDB_INVALID_REGNUM, 60, 60 }, nullptr, nullptr, nullptr, 0 }, 805314564Sdim { "d18", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d18, LLDB_INVALID_REGNUM, 61, 61 }, nullptr, nullptr, nullptr, 0 }, 806314564Sdim { "d19", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d19, LLDB_INVALID_REGNUM, 62, 62 }, nullptr, nullptr, nullptr, 0 }, 807314564Sdim { "d20", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d20, LLDB_INVALID_REGNUM, 63, 63 }, nullptr, nullptr, nullptr, 0 }, 808314564Sdim { "d21", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d21, LLDB_INVALID_REGNUM, 64, 64 }, nullptr, nullptr, nullptr, 0 }, 809314564Sdim { "d22", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d22, LLDB_INVALID_REGNUM, 65, 65 }, nullptr, nullptr, nullptr, 0 }, 810314564Sdim { "d23", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d23, LLDB_INVALID_REGNUM, 66, 66 }, nullptr, nullptr, nullptr, 0 }, 811314564Sdim { "d24", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d24, LLDB_INVALID_REGNUM, 67, 67 }, nullptr, nullptr, nullptr, 0 }, 812314564Sdim { "d25", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d25, LLDB_INVALID_REGNUM, 68, 68 }, nullptr, nullptr, nullptr, 0 }, 813314564Sdim { "d26", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d26, LLDB_INVALID_REGNUM, 69, 69 }, nullptr, nullptr, nullptr, 0 }, 814314564Sdim { "d27", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d27, LLDB_INVALID_REGNUM, 70, 70 }, nullptr, nullptr, nullptr, 0 }, 815314564Sdim { "d28", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d28, LLDB_INVALID_REGNUM, 71, 71 }, nullptr, nullptr, nullptr, 0 }, 816314564Sdim { "d29", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d29, LLDB_INVALID_REGNUM, 72, 72 }, nullptr, nullptr, nullptr, 0 }, 817314564Sdim { "d30", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d30, LLDB_INVALID_REGNUM, 73, 73 }, nullptr, nullptr, nullptr, 0 }, 818314564Sdim { "d31", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d31, LLDB_INVALID_REGNUM, 74, 74 }, nullptr, nullptr, nullptr, 0 }, 819314564Sdim { "d0", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d0, LLDB_INVALID_REGNUM, 75, 75 }, g_d0_regs, nullptr, nullptr, 0 }, 820314564Sdim { "d1", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d1, LLDB_INVALID_REGNUM, 76, 76 }, g_d1_regs, nullptr, nullptr, 0 }, 821314564Sdim { "d2", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d2, LLDB_INVALID_REGNUM, 77, 77 }, g_d2_regs, nullptr, nullptr, 0 }, 822314564Sdim { "d3", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d3, LLDB_INVALID_REGNUM, 78, 78 }, g_d3_regs, nullptr, nullptr, 0 }, 823314564Sdim { "d4", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d4, LLDB_INVALID_REGNUM, 79, 79 }, g_d4_regs, nullptr, nullptr, 0 }, 824314564Sdim { "d5", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d5, LLDB_INVALID_REGNUM, 80, 80 }, g_d5_regs, nullptr, nullptr, 0 }, 825314564Sdim { "d6", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d6, LLDB_INVALID_REGNUM, 81, 81 }, g_d6_regs, nullptr, nullptr, 0 }, 826314564Sdim { "d7", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d7, LLDB_INVALID_REGNUM, 82, 82 }, g_d7_regs, nullptr, nullptr, 0 }, 827314564Sdim { "d8", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d8, LLDB_INVALID_REGNUM, 83, 83 }, g_d8_regs, nullptr, nullptr, 0 }, 828314564Sdim { "d9", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d9, LLDB_INVALID_REGNUM, 84, 84 }, g_d9_regs, nullptr, nullptr, 0 }, 829314564Sdim { "d10", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d10, LLDB_INVALID_REGNUM, 85, 85 }, g_d10_regs, nullptr, nullptr, 0 }, 830314564Sdim { "d11", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d11, LLDB_INVALID_REGNUM, 86, 86 }, g_d11_regs, nullptr, nullptr, 0 }, 831314564Sdim { "d12", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d12, LLDB_INVALID_REGNUM, 87, 87 }, g_d12_regs, nullptr, nullptr, 0 }, 832314564Sdim { "d13", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d13, LLDB_INVALID_REGNUM, 88, 88 }, g_d13_regs, nullptr, nullptr, 0 }, 833314564Sdim { "d14", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d14, LLDB_INVALID_REGNUM, 89, 89 }, g_d14_regs, nullptr, nullptr, 0 }, 834314564Sdim { "d15", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d15, LLDB_INVALID_REGNUM, 90, 90 }, g_d15_regs, nullptr, nullptr, 0 }, 835314564Sdim { "q0", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q0, LLDB_INVALID_REGNUM, 91, 91 }, g_q0_regs, nullptr, nullptr, 0 }, 836314564Sdim { "q1", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q1, LLDB_INVALID_REGNUM, 92, 92 }, g_q1_regs, nullptr, nullptr, 0 }, 837314564Sdim { "q2", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q2, LLDB_INVALID_REGNUM, 93, 93 }, g_q2_regs, nullptr, nullptr, 0 }, 838314564Sdim { "q3", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q3, LLDB_INVALID_REGNUM, 94, 94 }, g_q3_regs, nullptr, nullptr, 0 }, 839314564Sdim { "q4", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q4, LLDB_INVALID_REGNUM, 95, 95 }, g_q4_regs, nullptr, nullptr, 0 }, 840314564Sdim { "q5", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q5, LLDB_INVALID_REGNUM, 96, 96 }, g_q5_regs, nullptr, nullptr, 0 }, 841314564Sdim { "q6", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q6, LLDB_INVALID_REGNUM, 97, 97 }, g_q6_regs, nullptr, nullptr, 0 }, 842314564Sdim { "q7", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q7, LLDB_INVALID_REGNUM, 98, 98 }, g_q7_regs, nullptr, nullptr, 0 }, 843314564Sdim { "q8", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q8, LLDB_INVALID_REGNUM, 99, 99 }, g_q8_regs, nullptr, nullptr, 0 }, 844314564Sdim { "q9", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q9, LLDB_INVALID_REGNUM, 100, 100 }, g_q9_regs, nullptr, nullptr, 0 }, 845314564Sdim { "q10", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q10, LLDB_INVALID_REGNUM, 101, 101 }, g_q10_regs, nullptr, nullptr, 0 }, 846314564Sdim { "q11", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q11, LLDB_INVALID_REGNUM, 102, 102 }, g_q11_regs, nullptr, nullptr, 0 }, 847314564Sdim { "q12", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q12, LLDB_INVALID_REGNUM, 103, 103 }, g_q12_regs, nullptr, nullptr, 0 }, 848314564Sdim { "q13", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q13, LLDB_INVALID_REGNUM, 104, 104 }, g_q13_regs, nullptr, nullptr, 0 }, 849314564Sdim { "q14", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q14, LLDB_INVALID_REGNUM, 105, 105 }, g_q14_regs, nullptr, nullptr, 0 }, 850314564Sdim { "q15", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q15, LLDB_INVALID_REGNUM, 106, 106 }, g_q15_regs, nullptr, nullptr, 0 } 851254721Semaste }; 852314564Sdim // clang-format on 853254721Semaste 854314564Sdim static const uint32_t num_registers = llvm::array_lengthof(g_register_infos); 855314564Sdim static ConstString gpr_reg_set("General Purpose Registers"); 856314564Sdim static ConstString sfp_reg_set("Software Floating Point Registers"); 857314564Sdim static ConstString vfp_reg_set("Floating Point Registers"); 858314564Sdim size_t i; 859314564Sdim if (from_scratch) { 860314564Sdim // Calculate the offsets of the registers 861314564Sdim // Note that the layout of the "composite" registers (d0-d15 and q0-q15) 862341825Sdim // which comes after the "primordial" registers is important. This enables 863341825Sdim // us to calculate the offset of the composite register by using the offset 864341825Sdim // of its first primordial register. For example, to calculate the offset 865341825Sdim // of q0, use s0's offset. 866314564Sdim if (g_register_infos[2].byte_offset == 0) { 867314564Sdim uint32_t byte_offset = 0; 868314564Sdim for (i = 0; i < num_registers; ++i) { 869314564Sdim // For primordial registers, increment the byte_offset by the byte_size 870341825Sdim // to arrive at the byte_offset for the next register. Otherwise, we 871341825Sdim // have a composite register whose offset can be calculated by 872341825Sdim // consulting the offset of its first primordial register. 873314564Sdim if (!g_register_infos[i].value_regs) { 874314564Sdim g_register_infos[i].byte_offset = byte_offset; 875314564Sdim byte_offset += g_register_infos[i].byte_size; 876314564Sdim } else { 877314564Sdim const uint32_t first_primordial_reg = 878314564Sdim g_register_infos[i].value_regs[0]; 879314564Sdim g_register_infos[i].byte_offset = 880314564Sdim g_register_infos[first_primordial_reg].byte_offset; 881254721Semaste } 882314564Sdim } 883314564Sdim } 884314564Sdim for (i = 0; i < num_registers; ++i) { 885314564Sdim ConstString name; 886314564Sdim ConstString alt_name; 887314564Sdim if (g_register_infos[i].name && g_register_infos[i].name[0]) 888314564Sdim name.SetCString(g_register_infos[i].name); 889314564Sdim if (g_register_infos[i].alt_name && g_register_infos[i].alt_name[0]) 890314564Sdim alt_name.SetCString(g_register_infos[i].alt_name); 891254721Semaste 892314564Sdim if (i <= 15 || i == 25) 893314564Sdim AddRegister(g_register_infos[i], name, alt_name, gpr_reg_set); 894314564Sdim else if (i <= 24) 895314564Sdim AddRegister(g_register_infos[i], name, alt_name, sfp_reg_set); 896314564Sdim else 897314564Sdim AddRegister(g_register_infos[i], name, alt_name, vfp_reg_set); 898254721Semaste } 899314564Sdim } else { 900314564Sdim // Add composite registers to our primordial registers, then. 901314564Sdim const size_t num_composites = llvm::array_lengthof(g_composites); 902314564Sdim const size_t num_dynamic_regs = GetNumRegisters(); 903314564Sdim const size_t num_common_regs = num_registers - num_composites; 904314564Sdim RegisterInfo *g_comp_register_infos = g_register_infos + num_common_regs; 905254721Semaste 906314564Sdim // First we need to validate that all registers that we already have match 907341825Sdim // the non composite regs. If so, then we can add the registers, else we 908341825Sdim // need to bail 909314564Sdim bool match = true; 910314564Sdim if (num_dynamic_regs == num_common_regs) { 911314564Sdim for (i = 0; match && i < num_dynamic_regs; ++i) { 912314564Sdim // Make sure all register names match 913314564Sdim if (m_regs[i].name && g_register_infos[i].name) { 914314564Sdim if (strcmp(m_regs[i].name, g_register_infos[i].name)) { 915254721Semaste match = false; 916314564Sdim break; 917314564Sdim } 918254721Semaste } 919314564Sdim 920314564Sdim // Make sure all register byte sizes match 921314564Sdim if (m_regs[i].byte_size != g_register_infos[i].byte_size) { 922314564Sdim match = false; 923314564Sdim break; 924314564Sdim } 925314564Sdim } 926314564Sdim } else { 927314564Sdim // Wrong number of registers. 928314564Sdim match = false; 929314564Sdim } 930314564Sdim // If "match" is true, then we can add extra registers. 931314564Sdim if (match) { 932314564Sdim for (i = 0; i < num_composites; ++i) { 933314564Sdim ConstString name; 934314564Sdim ConstString alt_name; 935314564Sdim const uint32_t first_primordial_reg = 936314564Sdim g_comp_register_infos[i].value_regs[0]; 937314564Sdim const char *reg_name = g_register_infos[first_primordial_reg].name; 938314564Sdim if (reg_name && reg_name[0]) { 939314564Sdim for (uint32_t j = 0; j < num_dynamic_regs; ++j) { 940314564Sdim const RegisterInfo *reg_info = GetRegisterInfoAtIndex(j); 941314564Sdim // Find a matching primordial register info entry. 942314564Sdim if (reg_info && reg_info->name && 943314564Sdim ::strcasecmp(reg_info->name, reg_name) == 0) { 944341825Sdim // The name matches the existing primordial entry. Find and 945341825Sdim // assign the offset, and then add this composite register entry. 946314564Sdim g_comp_register_infos[i].byte_offset = reg_info->byte_offset; 947314564Sdim name.SetCString(g_comp_register_infos[i].name); 948314564Sdim AddRegister(g_comp_register_infos[i], name, alt_name, 949314564Sdim vfp_reg_set); 950254721Semaste } 951314564Sdim } 952254721Semaste } 953314564Sdim } 954254721Semaste } 955314564Sdim } 956254721Semaste} 957