GDBRemoteRegisterContext.cpp revision 314564
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// C Includes 13254721Semaste// C++ Includes 14254721Semaste// Other libraries and framework includes 15254721Semaste#include "lldb/Core/DataBufferHeap.h" 16254721Semaste#include "lldb/Core/DataExtractor.h" 17254721Semaste#include "lldb/Core/RegisterValue.h" 18254721Semaste#include "lldb/Core/Scalar.h" 19254721Semaste#include "lldb/Core/StreamString.h" 20254721Semaste#include "lldb/Target/ExecutionContext.h" 21276479Sdim#include "lldb/Target/Target.h" 22254721Semaste#include "lldb/Utility/Utils.h" 23254721Semaste// Project includes 24254721Semaste#include "ProcessGDBRemote.h" 25254721Semaste#include "ProcessGDBRemoteLog.h" 26254721Semaste#include "ThreadGDBRemote.h" 27254721Semaste#include "Utility/ARM_DWARF_Registers.h" 28296417Sdim#include "Utility/ARM_ehframe_Registers.h" 29314564Sdim#include "Utility/StringExtractorGDBRemote.h" 30254721Semaste 31254721Semasteusing namespace lldb; 32254721Semasteusing namespace lldb_private; 33288943Sdimusing namespace lldb_private::process_gdb_remote; 34254721Semaste 35254721Semaste//---------------------------------------------------------------------- 36254721Semaste// GDBRemoteRegisterContext constructor 37254721Semaste//---------------------------------------------------------------------- 38314564SdimGDBRemoteRegisterContext::GDBRemoteRegisterContext( 39314564Sdim ThreadGDBRemote &thread, uint32_t concrete_frame_idx, 40314564Sdim GDBRemoteDynamicRegisterInfo ®_info, bool read_all_at_once) 41314564Sdim : RegisterContext(thread, concrete_frame_idx), m_reg_info(reg_info), 42314564Sdim m_reg_valid(), m_reg_data(), m_read_all_at_once(read_all_at_once) { 43314564Sdim // Resize our vector of bools to contain one bool for every register. 44314564Sdim // We will use these boolean values to know when a register value 45314564Sdim // is valid in m_reg_data. 46314564Sdim m_reg_valid.resize(reg_info.GetNumRegisters()); 47254721Semaste 48314564Sdim // Make a heap based buffer that is big enough to store all registers 49314564Sdim DataBufferSP reg_data_sp( 50314564Sdim new DataBufferHeap(reg_info.GetRegisterDataByteSize(), 0)); 51314564Sdim m_reg_data.SetData(reg_data_sp); 52314564Sdim m_reg_data.SetByteOrder(thread.GetProcess()->GetByteOrder()); 53254721Semaste} 54254721Semaste 55254721Semaste//---------------------------------------------------------------------- 56254721Semaste// Destructor 57254721Semaste//---------------------------------------------------------------------- 58314564SdimGDBRemoteRegisterContext::~GDBRemoteRegisterContext() {} 59254721Semaste 60314564Sdimvoid GDBRemoteRegisterContext::InvalidateAllRegisters() { 61314564Sdim SetAllRegisterValid(false); 62254721Semaste} 63254721Semaste 64314564Sdimvoid GDBRemoteRegisterContext::SetAllRegisterValid(bool b) { 65314564Sdim std::vector<bool>::iterator pos, end = m_reg_valid.end(); 66314564Sdim for (pos = m_reg_valid.begin(); pos != end; ++pos) 67314564Sdim *pos = b; 68254721Semaste} 69254721Semaste 70314564Sdimsize_t GDBRemoteRegisterContext::GetRegisterCount() { 71314564Sdim return m_reg_info.GetNumRegisters(); 72254721Semaste} 73254721Semaste 74254721Semasteconst RegisterInfo * 75314564SdimGDBRemoteRegisterContext::GetRegisterInfoAtIndex(size_t reg) { 76314564Sdim RegisterInfo *reg_info = m_reg_info.GetRegisterInfoAtIndex(reg); 77309124Sdim 78314564Sdim if (reg_info && reg_info->dynamic_size_dwarf_expr_bytes) { 79314564Sdim const ArchSpec &arch = m_thread.GetProcess()->GetTarget().GetArchitecture(); 80314564Sdim uint8_t reg_size = UpdateDynamicRegisterSize(arch, reg_info); 81314564Sdim reg_info->byte_size = reg_size; 82314564Sdim } 83314564Sdim return reg_info; 84254721Semaste} 85254721Semaste 86314564Sdimsize_t GDBRemoteRegisterContext::GetRegisterSetCount() { 87314564Sdim return m_reg_info.GetNumRegisterSets(); 88254721Semaste} 89254721Semaste 90314564Sdimconst RegisterSet *GDBRemoteRegisterContext::GetRegisterSet(size_t reg_set) { 91314564Sdim return m_reg_info.GetRegisterSet(reg_set); 92314564Sdim} 93254721Semaste 94314564Sdimbool GDBRemoteRegisterContext::ReadRegister(const RegisterInfo *reg_info, 95314564Sdim RegisterValue &value) { 96314564Sdim // Read the register 97314564Sdim if (ReadRegisterBytes(reg_info, m_reg_data)) { 98314564Sdim const bool partial_data_ok = false; 99314564Sdim Error error(value.SetValueFromData(reg_info, m_reg_data, 100314564Sdim reg_info->byte_offset, partial_data_ok)); 101314564Sdim return error.Success(); 102314564Sdim } 103314564Sdim return false; 104254721Semaste} 105254721Semaste 106314564Sdimbool GDBRemoteRegisterContext::PrivateSetRegisterValue( 107314564Sdim uint32_t reg, llvm::ArrayRef<uint8_t> data) { 108314564Sdim const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg); 109314564Sdim if (reg_info == NULL) 110254721Semaste return false; 111254721Semaste 112314564Sdim // Invalidate if needed 113314564Sdim InvalidateIfNeeded(false); 114254721Semaste 115314564Sdim const size_t reg_byte_size = reg_info->byte_size; 116314564Sdim memcpy(const_cast<uint8_t *>( 117314564Sdim m_reg_data.PeekData(reg_info->byte_offset, reg_byte_size)), 118314564Sdim data.data(), std::min(data.size(), reg_byte_size)); 119314564Sdim bool success = data.size() >= reg_byte_size; 120314564Sdim if (success) { 121314564Sdim SetRegisterIsValid(reg, true); 122314564Sdim } else if (data.size() > 0) { 123314564Sdim // Only set register is valid to false if we copied some bytes, else 124314564Sdim // leave it as it was. 125314564Sdim SetRegisterIsValid(reg, false); 126314564Sdim } 127314564Sdim return success; 128254721Semaste} 129254721Semaste 130314564Sdimbool GDBRemoteRegisterContext::PrivateSetRegisterValue(uint32_t reg, 131314564Sdim uint64_t new_reg_val) { 132314564Sdim const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg); 133314564Sdim if (reg_info == NULL) 134314564Sdim return false; 135296417Sdim 136314564Sdim // Early in process startup, we can get a thread that has an invalid byte 137314564Sdim // order 138314564Sdim // because the process hasn't been completely set up yet (see the ctor where 139314564Sdim // the 140314564Sdim // byte order is setfrom the process). If that's the case, we can't set the 141314564Sdim // value here. 142314564Sdim if (m_reg_data.GetByteOrder() == eByteOrderInvalid) { 143314564Sdim return false; 144314564Sdim } 145296417Sdim 146314564Sdim // Invalidate if needed 147314564Sdim InvalidateIfNeeded(false); 148296417Sdim 149314564Sdim DataBufferSP buffer_sp(new DataBufferHeap(&new_reg_val, sizeof(new_reg_val))); 150314564Sdim DataExtractor data(buffer_sp, endian::InlHostByteOrder(), sizeof(void *)); 151296417Sdim 152314564Sdim // If our register context and our register info disagree, which should never 153314564Sdim // happen, don't 154314564Sdim // overwrite past the end of the buffer. 155314564Sdim if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 156314564Sdim return false; 157296417Sdim 158314564Sdim // Grab a pointer to where we are going to put this register 159314564Sdim uint8_t *dst = const_cast<uint8_t *>( 160314564Sdim m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size)); 161296417Sdim 162314564Sdim if (dst == NULL) 163314564Sdim return false; 164296417Sdim 165314564Sdim if (data.CopyByteOrderedData(0, // src offset 166314564Sdim reg_info->byte_size, // src length 167314564Sdim dst, // dst 168314564Sdim reg_info->byte_size, // dst length 169314564Sdim m_reg_data.GetByteOrder())) // dst byte order 170314564Sdim { 171314564Sdim SetRegisterIsValid(reg, true); 172314564Sdim return true; 173314564Sdim } 174314564Sdim return false; 175296417Sdim} 176296417Sdim 177254721Semaste// Helper function for GDBRemoteRegisterContext::ReadRegisterBytes(). 178314564Sdimbool GDBRemoteRegisterContext::GetPrimordialRegister( 179314564Sdim const RegisterInfo *reg_info, GDBRemoteCommunicationClient &gdb_comm) { 180314564Sdim const uint32_t lldb_reg = reg_info->kinds[eRegisterKindLLDB]; 181314564Sdim const uint32_t remote_reg = reg_info->kinds[eRegisterKindProcessPlugin]; 182314564Sdim StringExtractorGDBRemote response; 183314564Sdim if (DataBufferSP buffer_sp = 184314564Sdim gdb_comm.ReadRegister(m_thread.GetProtocolID(), remote_reg)) 185314564Sdim return PrivateSetRegisterValue( 186314564Sdim lldb_reg, llvm::ArrayRef<uint8_t>(buffer_sp->GetBytes(), 187314564Sdim buffer_sp->GetByteSize())); 188314564Sdim return false; 189254721Semaste} 190258884Semaste 191314564Sdimbool GDBRemoteRegisterContext::ReadRegisterBytes(const RegisterInfo *reg_info, 192314564Sdim DataExtractor &data) { 193314564Sdim ExecutionContext exe_ctx(CalculateThread()); 194254721Semaste 195314564Sdim Process *process = exe_ctx.GetProcessPtr(); 196314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 197314564Sdim if (process == NULL || thread == NULL) 198314564Sdim return false; 199254721Semaste 200314564Sdim GDBRemoteCommunicationClient &gdb_comm( 201314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 202254721Semaste 203314564Sdim InvalidateIfNeeded(false); 204254721Semaste 205314564Sdim const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 206254721Semaste 207314564Sdim if (!GetRegisterIsValid(reg)) { 208314564Sdim if (m_read_all_at_once) { 209314564Sdim if (DataBufferSP buffer_sp = 210314564Sdim gdb_comm.ReadAllRegisters(m_thread.GetProtocolID())) { 211314564Sdim memcpy(const_cast<uint8_t *>(m_reg_data.GetDataStart()), 212314564Sdim buffer_sp->GetBytes(), 213314564Sdim std::min(buffer_sp->GetByteSize(), m_reg_data.GetByteSize())); 214314564Sdim if (buffer_sp->GetByteSize() >= m_reg_data.GetByteSize()) { 215314564Sdim SetAllRegisterValid(true); 216314564Sdim return true; 217258884Semaste } 218314564Sdim } 219314564Sdim return false; 220314564Sdim } 221314564Sdim if (reg_info->value_regs) { 222314564Sdim // Process this composite register request by delegating to the 223314564Sdim // constituent 224314564Sdim // primordial registers. 225258884Semaste 226314564Sdim // Index of the primordial register. 227314564Sdim bool success = true; 228314564Sdim for (uint32_t idx = 0; success; ++idx) { 229314564Sdim const uint32_t prim_reg = reg_info->value_regs[idx]; 230314564Sdim if (prim_reg == LLDB_INVALID_REGNUM) 231314564Sdim break; 232314564Sdim // We have a valid primordial register as our constituent. 233314564Sdim // Grab the corresponding register info. 234314564Sdim const RegisterInfo *prim_reg_info = GetRegisterInfoAtIndex(prim_reg); 235314564Sdim if (prim_reg_info == NULL) 236314564Sdim success = false; 237314564Sdim else { 238314564Sdim // Read the containing register if it hasn't already been read 239314564Sdim if (!GetRegisterIsValid(prim_reg)) 240314564Sdim success = GetPrimordialRegister(prim_reg_info, gdb_comm); 241254721Semaste } 242314564Sdim } 243254721Semaste 244314564Sdim if (success) { 245314564Sdim // If we reach this point, all primordial register requests have 246314564Sdim // succeeded. 247314564Sdim // Validate this composite register. 248314564Sdim SetRegisterIsValid(reg_info, true); 249314564Sdim } 250314564Sdim } else { 251314564Sdim // Get each register individually 252314564Sdim GetPrimordialRegister(reg_info, gdb_comm); 253254721Semaste } 254254721Semaste 255314564Sdim // Make sure we got a valid register value after reading it 256314564Sdim if (!GetRegisterIsValid(reg)) 257314564Sdim return false; 258314564Sdim } 259276479Sdim 260314564Sdim if (&data != &m_reg_data) { 261314564Sdim#if defined(LLDB_CONFIGURATION_DEBUG) 262314564Sdim assert(m_reg_data.GetByteSize() >= 263314564Sdim reg_info->byte_offset + reg_info->byte_size); 264314564Sdim#endif 265314564Sdim // If our register context and our register info disagree, which should 266314564Sdim // never happen, don't 267314564Sdim // read past the end of the buffer. 268314564Sdim if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 269314564Sdim return false; 270276479Sdim 271314564Sdim // If we aren't extracting into our own buffer (which 272314564Sdim // only happens when this function is called from 273314564Sdim // ReadRegisterValue(uint32_t, Scalar&)) then 274314564Sdim // we transfer bytes from our buffer into the data 275314564Sdim // buffer that was passed in 276314564Sdim 277314564Sdim data.SetByteOrder(m_reg_data.GetByteOrder()); 278314564Sdim data.SetData(m_reg_data, reg_info->byte_offset, reg_info->byte_size); 279314564Sdim } 280314564Sdim return true; 281254721Semaste} 282254721Semaste 283314564Sdimbool GDBRemoteRegisterContext::WriteRegister(const RegisterInfo *reg_info, 284314564Sdim const RegisterValue &value) { 285314564Sdim DataExtractor data; 286314564Sdim if (value.GetData(data)) 287314564Sdim return WriteRegisterBytes(reg_info, data, 0); 288314564Sdim return false; 289254721Semaste} 290254721Semaste 291254721Semaste// Helper function for GDBRemoteRegisterContext::WriteRegisterBytes(). 292314564Sdimbool GDBRemoteRegisterContext::SetPrimordialRegister( 293314564Sdim const RegisterInfo *reg_info, GDBRemoteCommunicationClient &gdb_comm) { 294314564Sdim StreamString packet; 295314564Sdim StringExtractorGDBRemote response; 296314564Sdim const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 297314564Sdim // Invalidate just this register 298314564Sdim SetRegisterIsValid(reg, false); 299254721Semaste 300314564Sdim return gdb_comm.WriteRegister( 301314564Sdim m_thread.GetProtocolID(), reg_info->kinds[eRegisterKindProcessPlugin], 302314564Sdim {m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size), 303314564Sdim reg_info->byte_size}); 304254721Semaste} 305254721Semaste 306314564Sdimbool GDBRemoteRegisterContext::WriteRegisterBytes(const RegisterInfo *reg_info, 307314564Sdim DataExtractor &data, 308314564Sdim uint32_t data_offset) { 309314564Sdim ExecutionContext exe_ctx(CalculateThread()); 310254721Semaste 311314564Sdim Process *process = exe_ctx.GetProcessPtr(); 312314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 313314564Sdim if (process == NULL || thread == NULL) 314314564Sdim return false; 315254721Semaste 316314564Sdim GDBRemoteCommunicationClient &gdb_comm( 317314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 318254721Semaste 319314564Sdim#if defined(LLDB_CONFIGURATION_DEBUG) 320314564Sdim assert(m_reg_data.GetByteSize() >= 321314564Sdim reg_info->byte_offset + reg_info->byte_size); 322314564Sdim#endif 323254721Semaste 324314564Sdim // If our register context and our register info disagree, which should never 325314564Sdim // happen, don't 326314564Sdim // overwrite past the end of the buffer. 327314564Sdim if (m_reg_data.GetByteSize() < reg_info->byte_offset + reg_info->byte_size) 328314564Sdim return false; 329254721Semaste 330314564Sdim // Grab a pointer to where we are going to put this register 331314564Sdim uint8_t *dst = const_cast<uint8_t *>( 332314564Sdim m_reg_data.PeekData(reg_info->byte_offset, reg_info->byte_size)); 333276479Sdim 334314564Sdim if (dst == NULL) 335314564Sdim return false; 336276479Sdim 337314564Sdim if (data.CopyByteOrderedData(data_offset, // src offset 338314564Sdim reg_info->byte_size, // src length 339314564Sdim dst, // dst 340314564Sdim reg_info->byte_size, // dst length 341314564Sdim m_reg_data.GetByteOrder())) // dst byte order 342314564Sdim { 343314564Sdim GDBRemoteClientBase::Lock lock(gdb_comm, false); 344314564Sdim if (lock) { 345314564Sdim if (m_read_all_at_once) { 346314564Sdim // Invalidate all register values 347314564Sdim InvalidateIfNeeded(true); 348276479Sdim 349314564Sdim // Set all registers in one packet 350314564Sdim if (gdb_comm.WriteAllRegisters( 351314564Sdim m_thread.GetProtocolID(), 352314564Sdim {m_reg_data.GetDataStart(), size_t(m_reg_data.GetByteSize())})) 353254721Semaste 354254721Semaste { 355314564Sdim SetAllRegisterValid(false); 356314564Sdim return true; 357314564Sdim } 358314564Sdim } else { 359314564Sdim bool success = true; 360254721Semaste 361314564Sdim if (reg_info->value_regs) { 362314564Sdim // This register is part of another register. In this case we read the 363314564Sdim // actual 364314564Sdim // register data for any "value_regs", and once all that data is read, 365314564Sdim // we will 366314564Sdim // have enough data in our register context bytes for the value of 367314564Sdim // this register 368254721Semaste 369314564Sdim // Invalidate this composite register first. 370254721Semaste 371314564Sdim for (uint32_t idx = 0; success; ++idx) { 372314564Sdim const uint32_t reg = reg_info->value_regs[idx]; 373314564Sdim if (reg == LLDB_INVALID_REGNUM) 374314564Sdim break; 375314564Sdim // We have a valid primordial register as our constituent. 376314564Sdim // Grab the corresponding register info. 377314564Sdim const RegisterInfo *value_reg_info = GetRegisterInfoAtIndex(reg); 378314564Sdim if (value_reg_info == NULL) 379314564Sdim success = false; 380314564Sdim else 381314564Sdim success = SetPrimordialRegister(value_reg_info, gdb_comm); 382314564Sdim } 383314564Sdim } else { 384314564Sdim // This is an actual register, write it 385314564Sdim success = SetPrimordialRegister(reg_info, gdb_comm); 386314564Sdim } 387254721Semaste 388314564Sdim // Check if writing this register will invalidate any other register 389314564Sdim // values? 390314564Sdim // If so, invalidate them 391314564Sdim if (reg_info->invalidate_regs) { 392314564Sdim for (uint32_t idx = 0, reg = reg_info->invalidate_regs[0]; 393314564Sdim reg != LLDB_INVALID_REGNUM; 394314564Sdim reg = reg_info->invalidate_regs[++idx]) { 395314564Sdim SetRegisterIsValid(reg, false); 396314564Sdim } 397314564Sdim } 398254721Semaste 399314564Sdim return success; 400314564Sdim } 401314564Sdim } else { 402314564Sdim Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 403314564Sdim GDBR_LOG_PACKETS)); 404314564Sdim if (log) { 405314564Sdim if (log->GetVerbose()) { 406314564Sdim StreamString strm; 407314564Sdim gdb_comm.DumpHistory(strm); 408314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 409314564Sdim "write register for \"%s\":\n%s", 410314564Sdim reg_info->name, strm.GetData()); 411314564Sdim } else 412314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 413314564Sdim "write register for \"%s\"", 414314564Sdim reg_info->name); 415314564Sdim } 416254721Semaste } 417314564Sdim } 418314564Sdim return false; 419254721Semaste} 420254721Semaste 421314564Sdimbool GDBRemoteRegisterContext::ReadAllRegisterValues( 422314564Sdim RegisterCheckpoint ®_checkpoint) { 423314564Sdim ExecutionContext exe_ctx(CalculateThread()); 424254721Semaste 425314564Sdim Process *process = exe_ctx.GetProcessPtr(); 426314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 427314564Sdim if (process == NULL || thread == NULL) 428314564Sdim return false; 429258884Semaste 430314564Sdim GDBRemoteCommunicationClient &gdb_comm( 431314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 432314564Sdim 433314564Sdim uint32_t save_id = 0; 434314564Sdim if (gdb_comm.SaveRegisterState(thread->GetProtocolID(), save_id)) { 435314564Sdim reg_checkpoint.SetID(save_id); 436314564Sdim reg_checkpoint.GetData().reset(); 437314564Sdim return true; 438314564Sdim } else { 439314564Sdim reg_checkpoint.SetID(0); // Invalid save ID is zero 440314564Sdim return ReadAllRegisterValues(reg_checkpoint.GetData()); 441314564Sdim } 442258884Semaste} 443258884Semaste 444314564Sdimbool GDBRemoteRegisterContext::WriteAllRegisterValues( 445314564Sdim const RegisterCheckpoint ®_checkpoint) { 446314564Sdim uint32_t save_id = reg_checkpoint.GetID(); 447314564Sdim if (save_id != 0) { 448314564Sdim ExecutionContext exe_ctx(CalculateThread()); 449254721Semaste 450254721Semaste Process *process = exe_ctx.GetProcessPtr(); 451254721Semaste Thread *thread = exe_ctx.GetThreadPtr(); 452254721Semaste if (process == NULL || thread == NULL) 453314564Sdim return false; 454254721Semaste 455314564Sdim GDBRemoteCommunicationClient &gdb_comm( 456314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 457254721Semaste 458314564Sdim return gdb_comm.RestoreRegisterState(m_thread.GetProtocolID(), save_id); 459314564Sdim } else { 460314564Sdim return WriteAllRegisterValues(reg_checkpoint.GetData()); 461314564Sdim } 462314564Sdim} 463254721Semaste 464314564Sdimbool GDBRemoteRegisterContext::ReadAllRegisterValues( 465314564Sdim lldb::DataBufferSP &data_sp) { 466314564Sdim ExecutionContext exe_ctx(CalculateThread()); 467276479Sdim 468314564Sdim Process *process = exe_ctx.GetProcessPtr(); 469314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 470314564Sdim if (process == NULL || thread == NULL) 471314564Sdim return false; 472254721Semaste 473314564Sdim GDBRemoteCommunicationClient &gdb_comm( 474314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 475276479Sdim 476314564Sdim const bool use_g_packet = 477314564Sdim gdb_comm.AvoidGPackets((ProcessGDBRemote *)process) == false; 478276479Sdim 479314564Sdim GDBRemoteClientBase::Lock lock(gdb_comm, false); 480314564Sdim if (lock) { 481314564Sdim if (gdb_comm.SyncThreadState(m_thread.GetProtocolID())) 482314564Sdim InvalidateAllRegisters(); 483276479Sdim 484314564Sdim if (use_g_packet && 485314564Sdim (data_sp = gdb_comm.ReadAllRegisters(m_thread.GetProtocolID()))) 486314564Sdim return true; 487314564Sdim 488314564Sdim // We're going to read each register 489314564Sdim // individually and store them as binary data in a buffer. 490314564Sdim const RegisterInfo *reg_info; 491314564Sdim 492314564Sdim for (uint32_t i = 0; (reg_info = GetRegisterInfoAtIndex(i)) != NULL; i++) { 493314564Sdim if (reg_info 494314564Sdim ->value_regs) // skip registers that are slices of real registers 495314564Sdim continue; 496314564Sdim ReadRegisterBytes(reg_info, m_reg_data); 497314564Sdim // ReadRegisterBytes saves the contents of the register in to the 498314564Sdim // m_reg_data buffer 499254721Semaste } 500314564Sdim data_sp.reset(new DataBufferHeap(m_reg_data.GetDataStart(), 501314564Sdim m_reg_info.GetRegisterDataByteSize())); 502314564Sdim return true; 503314564Sdim } else { 504276479Sdim 505314564Sdim Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 506314564Sdim GDBR_LOG_PACKETS)); 507314564Sdim if (log) { 508314564Sdim if (log->GetVerbose()) { 509314564Sdim StreamString strm; 510314564Sdim gdb_comm.DumpHistory(strm); 511314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 512314564Sdim "read all registers:\n%s", 513314564Sdim strm.GetData()); 514314564Sdim } else 515314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 516314564Sdim "read all registers"); 517254721Semaste } 518314564Sdim } 519254721Semaste 520314564Sdim data_sp.reset(); 521314564Sdim return false; 522254721Semaste} 523254721Semaste 524314564Sdimbool GDBRemoteRegisterContext::WriteAllRegisterValues( 525314564Sdim const lldb::DataBufferSP &data_sp) { 526314564Sdim if (!data_sp || data_sp->GetBytes() == NULL || data_sp->GetByteSize() == 0) 527314564Sdim return false; 528254721Semaste 529314564Sdim ExecutionContext exe_ctx(CalculateThread()); 530254721Semaste 531314564Sdim Process *process = exe_ctx.GetProcessPtr(); 532314564Sdim Thread *thread = exe_ctx.GetThreadPtr(); 533314564Sdim if (process == NULL || thread == NULL) 534314564Sdim return false; 535254721Semaste 536314564Sdim GDBRemoteCommunicationClient &gdb_comm( 537314564Sdim ((ProcessGDBRemote *)process)->GetGDBRemote()); 538254721Semaste 539314564Sdim const bool use_g_packet = 540314564Sdim gdb_comm.AvoidGPackets((ProcessGDBRemote *)process) == false; 541276479Sdim 542314564Sdim GDBRemoteClientBase::Lock lock(gdb_comm, false); 543314564Sdim if (lock) { 544314564Sdim // The data_sp contains the G response packet. 545314564Sdim if (use_g_packet) { 546314564Sdim if (gdb_comm.WriteAllRegisters( 547314564Sdim m_thread.GetProtocolID(), 548314564Sdim {data_sp->GetBytes(), size_t(data_sp->GetByteSize())})) 549314564Sdim return true; 550254721Semaste 551314564Sdim uint32_t num_restored = 0; 552314564Sdim // We need to manually go through all of the registers and 553314564Sdim // restore them manually 554314564Sdim DataExtractor restore_data(data_sp, m_reg_data.GetByteOrder(), 555314564Sdim m_reg_data.GetAddressByteSize()); 556288943Sdim 557314564Sdim const RegisterInfo *reg_info; 558288943Sdim 559314564Sdim // The g packet contents may either include the slice registers (registers 560314564Sdim // defined in 561314564Sdim // terms of other registers, e.g. eax is a subset of rax) or not. The 562314564Sdim // slice registers 563314564Sdim // should NOT be in the g packet, but some implementations may incorrectly 564314564Sdim // include them. 565314564Sdim // 566314564Sdim // If the slice registers are included in the packet, we must step over 567314564Sdim // the slice registers 568314564Sdim // when parsing the packet -- relying on the RegisterInfo byte_offset 569314564Sdim // field would be incorrect. 570314564Sdim // If the slice registers are not included, then using the byte_offset 571314564Sdim // values into the 572314564Sdim // data buffer is the best way to find individual register values. 573288943Sdim 574314564Sdim uint64_t size_including_slice_registers = 0; 575314564Sdim uint64_t size_not_including_slice_registers = 0; 576314564Sdim uint64_t size_by_highest_offset = 0; 577254721Semaste 578314564Sdim for (uint32_t reg_idx = 0; 579314564Sdim (reg_info = GetRegisterInfoAtIndex(reg_idx)) != NULL; ++reg_idx) { 580314564Sdim size_including_slice_registers += reg_info->byte_size; 581314564Sdim if (reg_info->value_regs == NULL) 582314564Sdim size_not_including_slice_registers += reg_info->byte_size; 583314564Sdim if (reg_info->byte_offset >= size_by_highest_offset) 584314564Sdim size_by_highest_offset = reg_info->byte_offset + reg_info->byte_size; 585314564Sdim } 586254721Semaste 587314564Sdim bool use_byte_offset_into_buffer; 588314564Sdim if (size_by_highest_offset == restore_data.GetByteSize()) { 589314564Sdim // The size of the packet agrees with the highest offset: + size in the 590314564Sdim // register file 591314564Sdim use_byte_offset_into_buffer = true; 592314564Sdim } else if (size_not_including_slice_registers == 593314564Sdim restore_data.GetByteSize()) { 594314564Sdim // The size of the packet is the same as concatenating all of the 595314564Sdim // registers sequentially, 596314564Sdim // skipping the slice registers 597314564Sdim use_byte_offset_into_buffer = true; 598314564Sdim } else if (size_including_slice_registers == restore_data.GetByteSize()) { 599314564Sdim // The slice registers are present in the packet (when they shouldn't 600314564Sdim // be). 601314564Sdim // Don't try to use the RegisterInfo byte_offset into the restore_data, 602314564Sdim // it will 603314564Sdim // point to the wrong place. 604314564Sdim use_byte_offset_into_buffer = false; 605314564Sdim } else { 606314564Sdim // None of our expected sizes match the actual g packet data we're 607314564Sdim // looking at. 608314564Sdim // The most conservative approach here is to use the running total byte 609314564Sdim // offset. 610314564Sdim use_byte_offset_into_buffer = false; 611314564Sdim } 612254721Semaste 613314564Sdim // In case our register definitions don't include the correct offsets, 614314564Sdim // keep track of the size of each reg & compute offset based on that. 615314564Sdim uint32_t running_byte_offset = 0; 616314564Sdim for (uint32_t reg_idx = 0; 617314564Sdim (reg_info = GetRegisterInfoAtIndex(reg_idx)) != NULL; 618314564Sdim ++reg_idx, running_byte_offset += reg_info->byte_size) { 619314564Sdim // Skip composite aka slice registers (e.g. eax is a slice of rax). 620314564Sdim if (reg_info->value_regs) 621314564Sdim continue; 622254721Semaste 623314564Sdim const uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; 624254721Semaste 625314564Sdim uint32_t register_offset; 626314564Sdim if (use_byte_offset_into_buffer) { 627314564Sdim register_offset = reg_info->byte_offset; 628314564Sdim } else { 629314564Sdim register_offset = running_byte_offset; 630314564Sdim } 631254721Semaste 632314564Sdim const uint32_t reg_byte_size = reg_info->byte_size; 633276479Sdim 634314564Sdim const uint8_t *restore_src = 635314564Sdim restore_data.PeekData(register_offset, reg_byte_size); 636314564Sdim if (restore_src) { 637314564Sdim SetRegisterIsValid(reg, false); 638314564Sdim if (gdb_comm.WriteRegister( 639314564Sdim m_thread.GetProtocolID(), 640314564Sdim reg_info->kinds[eRegisterKindProcessPlugin], 641314564Sdim {restore_src, reg_byte_size})) 642314564Sdim ++num_restored; 643314564Sdim } 644314564Sdim } 645314564Sdim return num_restored > 0; 646314564Sdim } else { 647314564Sdim // For the use_g_packet == false case, we're going to write each register 648314564Sdim // individually. The data buffer is binary data in this case, instead of 649314564Sdim // ascii characters. 650254721Semaste 651314564Sdim bool arm64_debugserver = false; 652314564Sdim if (m_thread.GetProcess().get()) { 653314564Sdim const ArchSpec &arch = 654314564Sdim m_thread.GetProcess()->GetTarget().GetArchitecture(); 655314564Sdim if (arch.IsValid() && arch.GetMachine() == llvm::Triple::aarch64 && 656314564Sdim arch.GetTriple().getVendor() == llvm::Triple::Apple && 657314564Sdim arch.GetTriple().getOS() == llvm::Triple::IOS) { 658314564Sdim arm64_debugserver = true; 659254721Semaste } 660314564Sdim } 661314564Sdim uint32_t num_restored = 0; 662314564Sdim const RegisterInfo *reg_info; 663314564Sdim for (uint32_t i = 0; (reg_info = GetRegisterInfoAtIndex(i)) != NULL; 664314564Sdim i++) { 665314564Sdim if (reg_info->value_regs) // skip registers that are slices of real 666314564Sdim // registers 667314564Sdim continue; 668314564Sdim // Skip the fpsr and fpcr floating point status/control register writing 669314564Sdim // to 670314564Sdim // work around a bug in an older version of debugserver that would lead 671314564Sdim // to 672314564Sdim // register context corruption when writing fpsr/fpcr. 673314564Sdim if (arm64_debugserver && (strcmp(reg_info->name, "fpsr") == 0 || 674314564Sdim strcmp(reg_info->name, "fpcr") == 0)) { 675314564Sdim continue; 676254721Semaste } 677314564Sdim 678314564Sdim SetRegisterIsValid(reg_info, false); 679314564Sdim if (gdb_comm.WriteRegister(m_thread.GetProtocolID(), 680314564Sdim reg_info->kinds[eRegisterKindProcessPlugin], 681314564Sdim {data_sp->GetBytes() + reg_info->byte_offset, 682314564Sdim reg_info->byte_size})) 683314564Sdim ++num_restored; 684314564Sdim } 685314564Sdim return num_restored > 0; 686254721Semaste } 687314564Sdim } else { 688314564Sdim Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_THREAD | 689314564Sdim GDBR_LOG_PACKETS)); 690314564Sdim if (log) { 691314564Sdim if (log->GetVerbose()) { 692314564Sdim StreamString strm; 693314564Sdim gdb_comm.DumpHistory(strm); 694314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 695314564Sdim "write all registers:\n%s", 696314564Sdim strm.GetData()); 697314564Sdim } else 698314564Sdim log->Printf("error: failed to get packet sequence mutex, not sending " 699314564Sdim "write all registers"); 700314564Sdim } 701314564Sdim } 702314564Sdim return false; 703254721Semaste} 704254721Semaste 705314564Sdimuint32_t GDBRemoteRegisterContext::ConvertRegisterKindToRegisterNumber( 706314564Sdim lldb::RegisterKind kind, uint32_t num) { 707314564Sdim return m_reg_info.ConvertRegisterKindToRegisterNumber(kind, num); 708254721Semaste} 709254721Semaste 710314564Sdimvoid GDBRemoteDynamicRegisterInfo::HardcodeARMRegisters(bool from_scratch) { 711314564Sdim // For Advanced SIMD and VFP register mapping. 712314564Sdim static uint32_t g_d0_regs[] = {26, 27, LLDB_INVALID_REGNUM}; // (s0, s1) 713314564Sdim static uint32_t g_d1_regs[] = {28, 29, LLDB_INVALID_REGNUM}; // (s2, s3) 714314564Sdim static uint32_t g_d2_regs[] = {30, 31, LLDB_INVALID_REGNUM}; // (s4, s5) 715314564Sdim static uint32_t g_d3_regs[] = {32, 33, LLDB_INVALID_REGNUM}; // (s6, s7) 716314564Sdim static uint32_t g_d4_regs[] = {34, 35, LLDB_INVALID_REGNUM}; // (s8, s9) 717314564Sdim static uint32_t g_d5_regs[] = {36, 37, LLDB_INVALID_REGNUM}; // (s10, s11) 718314564Sdim static uint32_t g_d6_regs[] = {38, 39, LLDB_INVALID_REGNUM}; // (s12, s13) 719314564Sdim static uint32_t g_d7_regs[] = {40, 41, LLDB_INVALID_REGNUM}; // (s14, s15) 720314564Sdim static uint32_t g_d8_regs[] = {42, 43, LLDB_INVALID_REGNUM}; // (s16, s17) 721314564Sdim static uint32_t g_d9_regs[] = {44, 45, LLDB_INVALID_REGNUM}; // (s18, s19) 722314564Sdim static uint32_t g_d10_regs[] = {46, 47, LLDB_INVALID_REGNUM}; // (s20, s21) 723314564Sdim static uint32_t g_d11_regs[] = {48, 49, LLDB_INVALID_REGNUM}; // (s22, s23) 724314564Sdim static uint32_t g_d12_regs[] = {50, 51, LLDB_INVALID_REGNUM}; // (s24, s25) 725314564Sdim static uint32_t g_d13_regs[] = {52, 53, LLDB_INVALID_REGNUM}; // (s26, s27) 726314564Sdim static uint32_t g_d14_regs[] = {54, 55, LLDB_INVALID_REGNUM}; // (s28, s29) 727314564Sdim static uint32_t g_d15_regs[] = {56, 57, LLDB_INVALID_REGNUM}; // (s30, s31) 728314564Sdim static uint32_t g_q0_regs[] = { 729314564Sdim 26, 27, 28, 29, LLDB_INVALID_REGNUM}; // (d0, d1) -> (s0, s1, s2, s3) 730314564Sdim static uint32_t g_q1_regs[] = { 731314564Sdim 30, 31, 32, 33, LLDB_INVALID_REGNUM}; // (d2, d3) -> (s4, s5, s6, s7) 732314564Sdim static uint32_t g_q2_regs[] = { 733314564Sdim 34, 35, 36, 37, LLDB_INVALID_REGNUM}; // (d4, d5) -> (s8, s9, s10, s11) 734314564Sdim static uint32_t g_q3_regs[] = { 735314564Sdim 38, 39, 40, 41, LLDB_INVALID_REGNUM}; // (d6, d7) -> (s12, s13, s14, s15) 736314564Sdim static uint32_t g_q4_regs[] = { 737314564Sdim 42, 43, 44, 45, LLDB_INVALID_REGNUM}; // (d8, d9) -> (s16, s17, s18, s19) 738314564Sdim static uint32_t g_q5_regs[] = { 739314564Sdim 46, 47, 48, 49, 740314564Sdim LLDB_INVALID_REGNUM}; // (d10, d11) -> (s20, s21, s22, s23) 741314564Sdim static uint32_t g_q6_regs[] = { 742314564Sdim 50, 51, 52, 53, 743314564Sdim LLDB_INVALID_REGNUM}; // (d12, d13) -> (s24, s25, s26, s27) 744314564Sdim static uint32_t g_q7_regs[] = { 745314564Sdim 54, 55, 56, 57, 746314564Sdim LLDB_INVALID_REGNUM}; // (d14, d15) -> (s28, s29, s30, s31) 747314564Sdim static uint32_t g_q8_regs[] = {59, 60, LLDB_INVALID_REGNUM}; // (d16, d17) 748314564Sdim static uint32_t g_q9_regs[] = {61, 62, LLDB_INVALID_REGNUM}; // (d18, d19) 749314564Sdim static uint32_t g_q10_regs[] = {63, 64, LLDB_INVALID_REGNUM}; // (d20, d21) 750314564Sdim static uint32_t g_q11_regs[] = {65, 66, LLDB_INVALID_REGNUM}; // (d22, d23) 751314564Sdim static uint32_t g_q12_regs[] = {67, 68, LLDB_INVALID_REGNUM}; // (d24, d25) 752314564Sdim static uint32_t g_q13_regs[] = {69, 70, LLDB_INVALID_REGNUM}; // (d26, d27) 753314564Sdim static uint32_t g_q14_regs[] = {71, 72, LLDB_INVALID_REGNUM}; // (d28, d29) 754314564Sdim static uint32_t g_q15_regs[] = {73, 74, LLDB_INVALID_REGNUM}; // (d30, d31) 755258054Semaste 756314564Sdim // This is our array of composite registers, with each element coming from the 757314564Sdim // above register mappings. 758314564Sdim static uint32_t *g_composites[] = { 759314564Sdim g_d0_regs, g_d1_regs, g_d2_regs, g_d3_regs, g_d4_regs, g_d5_regs, 760314564Sdim g_d6_regs, g_d7_regs, g_d8_regs, g_d9_regs, g_d10_regs, g_d11_regs, 761314564Sdim g_d12_regs, g_d13_regs, g_d14_regs, g_d15_regs, g_q0_regs, g_q1_regs, 762314564Sdim g_q2_regs, g_q3_regs, g_q4_regs, g_q5_regs, g_q6_regs, g_q7_regs, 763314564Sdim g_q8_regs, g_q9_regs, g_q10_regs, g_q11_regs, g_q12_regs, g_q13_regs, 764314564Sdim g_q14_regs, g_q15_regs}; 765254721Semaste 766314564Sdim // clang-format off 767254721Semaste static RegisterInfo g_register_infos[] = { 768314564Sdim// NAME ALT SZ OFF ENCODING FORMAT EH_FRAME DWARF GENERIC PROCESS PLUGIN LLDB VALUE REGS INVALIDATE REGS SIZE EXPR SIZE LEN 769314564Sdim// ====== ====== === === ============= ========== =================== =================== ====================== ============= ==== ========== =============== ========= ======== 770314564Sdim { "r0", "arg1", 4, 0, eEncodingUint, eFormatHex, { ehframe_r0, dwarf_r0, LLDB_REGNUM_GENERIC_ARG1,0, 0 }, nullptr, nullptr, nullptr, 0 }, 771314564Sdim { "r1", "arg2", 4, 0, eEncodingUint, eFormatHex, { ehframe_r1, dwarf_r1, LLDB_REGNUM_GENERIC_ARG2,1, 1 }, nullptr, nullptr, nullptr, 0 }, 772314564Sdim { "r2", "arg3", 4, 0, eEncodingUint, eFormatHex, { ehframe_r2, dwarf_r2, LLDB_REGNUM_GENERIC_ARG3,2, 2 }, nullptr, nullptr, nullptr, 0 }, 773314564Sdim { "r3", "arg4", 4, 0, eEncodingUint, eFormatHex, { ehframe_r3, dwarf_r3, LLDB_REGNUM_GENERIC_ARG4,3, 3 }, nullptr, nullptr, nullptr, 0 }, 774314564Sdim { "r4", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r4, dwarf_r4, LLDB_INVALID_REGNUM, 4, 4 }, nullptr, nullptr, nullptr, 0 }, 775314564Sdim { "r5", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r5, dwarf_r5, LLDB_INVALID_REGNUM, 5, 5 }, nullptr, nullptr, nullptr, 0 }, 776314564Sdim { "r6", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r6, dwarf_r6, LLDB_INVALID_REGNUM, 6, 6 }, nullptr, nullptr, nullptr, 0 }, 777314564Sdim { "r7", "fp", 4, 0, eEncodingUint, eFormatHex, { ehframe_r7, dwarf_r7, LLDB_REGNUM_GENERIC_FP, 7, 7 }, nullptr, nullptr, nullptr, 0 }, 778314564Sdim { "r8", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r8, dwarf_r8, LLDB_INVALID_REGNUM, 8, 8 }, nullptr, nullptr, nullptr, 0 }, 779314564Sdim { "r9", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r9, dwarf_r9, LLDB_INVALID_REGNUM, 9, 9 }, nullptr, nullptr, nullptr, 0 }, 780314564Sdim { "r10", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r10, dwarf_r10, LLDB_INVALID_REGNUM, 10, 10 }, nullptr, nullptr, nullptr, 0 }, 781314564Sdim { "r11", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r11, dwarf_r11, LLDB_INVALID_REGNUM, 11, 11 }, nullptr, nullptr, nullptr, 0 }, 782314564Sdim { "r12", nullptr, 4, 0, eEncodingUint, eFormatHex, { ehframe_r12, dwarf_r12, LLDB_INVALID_REGNUM, 12, 12 }, nullptr, nullptr, nullptr, 0 }, 783314564Sdim { "sp", "r13", 4, 0, eEncodingUint, eFormatHex, { ehframe_sp, dwarf_sp, LLDB_REGNUM_GENERIC_SP, 13, 13 }, nullptr, nullptr, nullptr, 0 }, 784314564Sdim { "lr", "r14", 4, 0, eEncodingUint, eFormatHex, { ehframe_lr, dwarf_lr, LLDB_REGNUM_GENERIC_RA, 14, 14 }, nullptr, nullptr, nullptr, 0 }, 785314564Sdim { "pc", "r15", 4, 0, eEncodingUint, eFormatHex, { ehframe_pc, dwarf_pc, LLDB_REGNUM_GENERIC_PC, 15, 15 }, nullptr, nullptr, nullptr, 0 }, 786314564Sdim { "f0", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 16, 16 }, nullptr, nullptr, nullptr, 0 }, 787314564Sdim { "f1", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 17, 17 }, nullptr, nullptr, nullptr, 0 }, 788314564Sdim { "f2", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 18, 18 }, nullptr, nullptr, nullptr, 0 }, 789314564Sdim { "f3", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 19, 19 }, nullptr, nullptr, nullptr, 0 }, 790314564Sdim { "f4", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 20, 20 }, nullptr, nullptr, nullptr, 0 }, 791314564Sdim { "f5", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 21, 21 }, nullptr, nullptr, nullptr, 0 }, 792314564Sdim { "f6", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 22, 22 }, nullptr, nullptr, nullptr, 0 }, 793314564Sdim { "f7", nullptr, 12, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 23, 23 }, nullptr, nullptr, nullptr, 0 }, 794314564Sdim { "fps", nullptr, 4, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 24, 24 }, nullptr, nullptr, nullptr, 0 }, 795314564Sdim { "cpsr","flags", 4, 0, eEncodingUint, eFormatHex, { ehframe_cpsr, dwarf_cpsr, LLDB_INVALID_REGNUM, 25, 25 }, nullptr, nullptr, nullptr, 0 }, 796314564Sdim { "s0", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s0, LLDB_INVALID_REGNUM, 26, 26 }, nullptr, nullptr, nullptr, 0 }, 797314564Sdim { "s1", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s1, LLDB_INVALID_REGNUM, 27, 27 }, nullptr, nullptr, nullptr, 0 }, 798314564Sdim { "s2", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s2, LLDB_INVALID_REGNUM, 28, 28 }, nullptr, nullptr, nullptr, 0 }, 799314564Sdim { "s3", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s3, LLDB_INVALID_REGNUM, 29, 29 }, nullptr, nullptr, nullptr, 0 }, 800314564Sdim { "s4", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s4, LLDB_INVALID_REGNUM, 30, 30 }, nullptr, nullptr, nullptr, 0 }, 801314564Sdim { "s5", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s5, LLDB_INVALID_REGNUM, 31, 31 }, nullptr, nullptr, nullptr, 0 }, 802314564Sdim { "s6", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s6, LLDB_INVALID_REGNUM, 32, 32 }, nullptr, nullptr, nullptr, 0 }, 803314564Sdim { "s7", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s7, LLDB_INVALID_REGNUM, 33, 33 }, nullptr, nullptr, nullptr, 0 }, 804314564Sdim { "s8", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s8, LLDB_INVALID_REGNUM, 34, 34 }, nullptr, nullptr, nullptr, 0 }, 805314564Sdim { "s9", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s9, LLDB_INVALID_REGNUM, 35, 35 }, nullptr, nullptr, nullptr, 0 }, 806314564Sdim { "s10", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s10, LLDB_INVALID_REGNUM, 36, 36 }, nullptr, nullptr, nullptr, 0 }, 807314564Sdim { "s11", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s11, LLDB_INVALID_REGNUM, 37, 37 }, nullptr, nullptr, nullptr, 0 }, 808314564Sdim { "s12", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s12, LLDB_INVALID_REGNUM, 38, 38 }, nullptr, nullptr, nullptr, 0 }, 809314564Sdim { "s13", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s13, LLDB_INVALID_REGNUM, 39, 39 }, nullptr, nullptr, nullptr, 0 }, 810314564Sdim { "s14", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s14, LLDB_INVALID_REGNUM, 40, 40 }, nullptr, nullptr, nullptr, 0 }, 811314564Sdim { "s15", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s15, LLDB_INVALID_REGNUM, 41, 41 }, nullptr, nullptr, nullptr, 0 }, 812314564Sdim { "s16", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s16, LLDB_INVALID_REGNUM, 42, 42 }, nullptr, nullptr, nullptr, 0 }, 813314564Sdim { "s17", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s17, LLDB_INVALID_REGNUM, 43, 43 }, nullptr, nullptr, nullptr, 0 }, 814314564Sdim { "s18", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s18, LLDB_INVALID_REGNUM, 44, 44 }, nullptr, nullptr, nullptr, 0 }, 815314564Sdim { "s19", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s19, LLDB_INVALID_REGNUM, 45, 45 }, nullptr, nullptr, nullptr, 0 }, 816314564Sdim { "s20", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s20, LLDB_INVALID_REGNUM, 46, 46 }, nullptr, nullptr, nullptr, 0 }, 817314564Sdim { "s21", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s21, LLDB_INVALID_REGNUM, 47, 47 }, nullptr, nullptr, nullptr, 0 }, 818314564Sdim { "s22", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s22, LLDB_INVALID_REGNUM, 48, 48 }, nullptr, nullptr, nullptr, 0 }, 819314564Sdim { "s23", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s23, LLDB_INVALID_REGNUM, 49, 49 }, nullptr, nullptr, nullptr, 0 }, 820314564Sdim { "s24", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s24, LLDB_INVALID_REGNUM, 50, 50 }, nullptr, nullptr, nullptr, 0 }, 821314564Sdim { "s25", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s25, LLDB_INVALID_REGNUM, 51, 51 }, nullptr, nullptr, nullptr, 0 }, 822314564Sdim { "s26", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s26, LLDB_INVALID_REGNUM, 52, 52 }, nullptr, nullptr, nullptr, 0 }, 823314564Sdim { "s27", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s27, LLDB_INVALID_REGNUM, 53, 53 }, nullptr, nullptr, nullptr, 0 }, 824314564Sdim { "s28", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s28, LLDB_INVALID_REGNUM, 54, 54 }, nullptr, nullptr, nullptr, 0 }, 825314564Sdim { "s29", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s29, LLDB_INVALID_REGNUM, 55, 55 }, nullptr, nullptr, nullptr, 0 }, 826314564Sdim { "s30", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s30, LLDB_INVALID_REGNUM, 56, 56 }, nullptr, nullptr, nullptr, 0 }, 827314564Sdim { "s31", nullptr, 4, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s31, LLDB_INVALID_REGNUM, 57, 57 }, nullptr, nullptr, nullptr, 0 }, 828314564Sdim { "fpscr",nullptr, 4, 0, eEncodingUint, eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, 58, 58 }, nullptr, nullptr, nullptr, 0 }, 829314564Sdim { "d16", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d16, LLDB_INVALID_REGNUM, 59, 59 }, nullptr, nullptr, nullptr, 0 }, 830314564Sdim { "d17", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d17, LLDB_INVALID_REGNUM, 60, 60 }, nullptr, nullptr, nullptr, 0 }, 831314564Sdim { "d18", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d18, LLDB_INVALID_REGNUM, 61, 61 }, nullptr, nullptr, nullptr, 0 }, 832314564Sdim { "d19", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d19, LLDB_INVALID_REGNUM, 62, 62 }, nullptr, nullptr, nullptr, 0 }, 833314564Sdim { "d20", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d20, LLDB_INVALID_REGNUM, 63, 63 }, nullptr, nullptr, nullptr, 0 }, 834314564Sdim { "d21", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d21, LLDB_INVALID_REGNUM, 64, 64 }, nullptr, nullptr, nullptr, 0 }, 835314564Sdim { "d22", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d22, LLDB_INVALID_REGNUM, 65, 65 }, nullptr, nullptr, nullptr, 0 }, 836314564Sdim { "d23", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d23, LLDB_INVALID_REGNUM, 66, 66 }, nullptr, nullptr, nullptr, 0 }, 837314564Sdim { "d24", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d24, LLDB_INVALID_REGNUM, 67, 67 }, nullptr, nullptr, nullptr, 0 }, 838314564Sdim { "d25", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d25, LLDB_INVALID_REGNUM, 68, 68 }, nullptr, nullptr, nullptr, 0 }, 839314564Sdim { "d26", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d26, LLDB_INVALID_REGNUM, 69, 69 }, nullptr, nullptr, nullptr, 0 }, 840314564Sdim { "d27", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d27, LLDB_INVALID_REGNUM, 70, 70 }, nullptr, nullptr, nullptr, 0 }, 841314564Sdim { "d28", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d28, LLDB_INVALID_REGNUM, 71, 71 }, nullptr, nullptr, nullptr, 0 }, 842314564Sdim { "d29", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d29, LLDB_INVALID_REGNUM, 72, 72 }, nullptr, nullptr, nullptr, 0 }, 843314564Sdim { "d30", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d30, LLDB_INVALID_REGNUM, 73, 73 }, nullptr, nullptr, nullptr, 0 }, 844314564Sdim { "d31", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d31, LLDB_INVALID_REGNUM, 74, 74 }, nullptr, nullptr, nullptr, 0 }, 845314564Sdim { "d0", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d0, LLDB_INVALID_REGNUM, 75, 75 }, g_d0_regs, nullptr, nullptr, 0 }, 846314564Sdim { "d1", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d1, LLDB_INVALID_REGNUM, 76, 76 }, g_d1_regs, nullptr, nullptr, 0 }, 847314564Sdim { "d2", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d2, LLDB_INVALID_REGNUM, 77, 77 }, g_d2_regs, nullptr, nullptr, 0 }, 848314564Sdim { "d3", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d3, LLDB_INVALID_REGNUM, 78, 78 }, g_d3_regs, nullptr, nullptr, 0 }, 849314564Sdim { "d4", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d4, LLDB_INVALID_REGNUM, 79, 79 }, g_d4_regs, nullptr, nullptr, 0 }, 850314564Sdim { "d5", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d5, LLDB_INVALID_REGNUM, 80, 80 }, g_d5_regs, nullptr, nullptr, 0 }, 851314564Sdim { "d6", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d6, LLDB_INVALID_REGNUM, 81, 81 }, g_d6_regs, nullptr, nullptr, 0 }, 852314564Sdim { "d7", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d7, LLDB_INVALID_REGNUM, 82, 82 }, g_d7_regs, nullptr, nullptr, 0 }, 853314564Sdim { "d8", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d8, LLDB_INVALID_REGNUM, 83, 83 }, g_d8_regs, nullptr, nullptr, 0 }, 854314564Sdim { "d9", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d9, LLDB_INVALID_REGNUM, 84, 84 }, g_d9_regs, nullptr, nullptr, 0 }, 855314564Sdim { "d10", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d10, LLDB_INVALID_REGNUM, 85, 85 }, g_d10_regs, nullptr, nullptr, 0 }, 856314564Sdim { "d11", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d11, LLDB_INVALID_REGNUM, 86, 86 }, g_d11_regs, nullptr, nullptr, 0 }, 857314564Sdim { "d12", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d12, LLDB_INVALID_REGNUM, 87, 87 }, g_d12_regs, nullptr, nullptr, 0 }, 858314564Sdim { "d13", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d13, LLDB_INVALID_REGNUM, 88, 88 }, g_d13_regs, nullptr, nullptr, 0 }, 859314564Sdim { "d14", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d14, LLDB_INVALID_REGNUM, 89, 89 }, g_d14_regs, nullptr, nullptr, 0 }, 860314564Sdim { "d15", nullptr, 8, 0, eEncodingIEEE754, eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d15, LLDB_INVALID_REGNUM, 90, 90 }, g_d15_regs, nullptr, nullptr, 0 }, 861314564Sdim { "q0", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q0, LLDB_INVALID_REGNUM, 91, 91 }, g_q0_regs, nullptr, nullptr, 0 }, 862314564Sdim { "q1", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q1, LLDB_INVALID_REGNUM, 92, 92 }, g_q1_regs, nullptr, nullptr, 0 }, 863314564Sdim { "q2", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q2, LLDB_INVALID_REGNUM, 93, 93 }, g_q2_regs, nullptr, nullptr, 0 }, 864314564Sdim { "q3", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q3, LLDB_INVALID_REGNUM, 94, 94 }, g_q3_regs, nullptr, nullptr, 0 }, 865314564Sdim { "q4", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q4, LLDB_INVALID_REGNUM, 95, 95 }, g_q4_regs, nullptr, nullptr, 0 }, 866314564Sdim { "q5", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q5, LLDB_INVALID_REGNUM, 96, 96 }, g_q5_regs, nullptr, nullptr, 0 }, 867314564Sdim { "q6", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q6, LLDB_INVALID_REGNUM, 97, 97 }, g_q6_regs, nullptr, nullptr, 0 }, 868314564Sdim { "q7", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q7, LLDB_INVALID_REGNUM, 98, 98 }, g_q7_regs, nullptr, nullptr, 0 }, 869314564Sdim { "q8", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q8, LLDB_INVALID_REGNUM, 99, 99 }, g_q8_regs, nullptr, nullptr, 0 }, 870314564Sdim { "q9", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q9, LLDB_INVALID_REGNUM, 100, 100 }, g_q9_regs, nullptr, nullptr, 0 }, 871314564Sdim { "q10", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q10, LLDB_INVALID_REGNUM, 101, 101 }, g_q10_regs, nullptr, nullptr, 0 }, 872314564Sdim { "q11", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q11, LLDB_INVALID_REGNUM, 102, 102 }, g_q11_regs, nullptr, nullptr, 0 }, 873314564Sdim { "q12", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q12, LLDB_INVALID_REGNUM, 103, 103 }, g_q12_regs, nullptr, nullptr, 0 }, 874314564Sdim { "q13", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q13, LLDB_INVALID_REGNUM, 104, 104 }, g_q13_regs, nullptr, nullptr, 0 }, 875314564Sdim { "q14", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q14, LLDB_INVALID_REGNUM, 105, 105 }, g_q14_regs, nullptr, nullptr, 0 }, 876314564Sdim { "q15", nullptr, 16, 0, eEncodingVector, eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, dwarf_q15, LLDB_INVALID_REGNUM, 106, 106 }, g_q15_regs, nullptr, nullptr, 0 } 877254721Semaste }; 878314564Sdim // clang-format on 879254721Semaste 880314564Sdim static const uint32_t num_registers = llvm::array_lengthof(g_register_infos); 881314564Sdim static ConstString gpr_reg_set("General Purpose Registers"); 882314564Sdim static ConstString sfp_reg_set("Software Floating Point Registers"); 883314564Sdim static ConstString vfp_reg_set("Floating Point Registers"); 884314564Sdim size_t i; 885314564Sdim if (from_scratch) { 886314564Sdim // Calculate the offsets of the registers 887314564Sdim // Note that the layout of the "composite" registers (d0-d15 and q0-q15) 888314564Sdim // which comes after the 889314564Sdim // "primordial" registers is important. This enables us to calculate the 890314564Sdim // offset of the composite 891314564Sdim // register by using the offset of its first primordial register. For 892314564Sdim // example, to calculate the 893314564Sdim // offset of q0, use s0's offset. 894314564Sdim if (g_register_infos[2].byte_offset == 0) { 895314564Sdim uint32_t byte_offset = 0; 896314564Sdim for (i = 0; i < num_registers; ++i) { 897314564Sdim // For primordial registers, increment the byte_offset by the byte_size 898314564Sdim // to arrive at the 899314564Sdim // byte_offset for the next register. Otherwise, we have a composite 900314564Sdim // register whose 901314564Sdim // offset can be calculated by consulting the offset of its first 902314564Sdim // primordial register. 903314564Sdim if (!g_register_infos[i].value_regs) { 904314564Sdim g_register_infos[i].byte_offset = byte_offset; 905314564Sdim byte_offset += g_register_infos[i].byte_size; 906314564Sdim } else { 907314564Sdim const uint32_t first_primordial_reg = 908314564Sdim g_register_infos[i].value_regs[0]; 909314564Sdim g_register_infos[i].byte_offset = 910314564Sdim g_register_infos[first_primordial_reg].byte_offset; 911254721Semaste } 912314564Sdim } 913314564Sdim } 914314564Sdim for (i = 0; i < num_registers; ++i) { 915314564Sdim ConstString name; 916314564Sdim ConstString alt_name; 917314564Sdim if (g_register_infos[i].name && g_register_infos[i].name[0]) 918314564Sdim name.SetCString(g_register_infos[i].name); 919314564Sdim if (g_register_infos[i].alt_name && g_register_infos[i].alt_name[0]) 920314564Sdim alt_name.SetCString(g_register_infos[i].alt_name); 921254721Semaste 922314564Sdim if (i <= 15 || i == 25) 923314564Sdim AddRegister(g_register_infos[i], name, alt_name, gpr_reg_set); 924314564Sdim else if (i <= 24) 925314564Sdim AddRegister(g_register_infos[i], name, alt_name, sfp_reg_set); 926314564Sdim else 927314564Sdim AddRegister(g_register_infos[i], name, alt_name, vfp_reg_set); 928254721Semaste } 929314564Sdim } else { 930314564Sdim // Add composite registers to our primordial registers, then. 931314564Sdim const size_t num_composites = llvm::array_lengthof(g_composites); 932314564Sdim const size_t num_dynamic_regs = GetNumRegisters(); 933314564Sdim const size_t num_common_regs = num_registers - num_composites; 934314564Sdim RegisterInfo *g_comp_register_infos = g_register_infos + num_common_regs; 935254721Semaste 936314564Sdim // First we need to validate that all registers that we already have match 937314564Sdim // the non composite regs. 938314564Sdim // If so, then we can add the registers, else we need to bail 939314564Sdim bool match = true; 940314564Sdim if (num_dynamic_regs == num_common_regs) { 941314564Sdim for (i = 0; match && i < num_dynamic_regs; ++i) { 942314564Sdim // Make sure all register names match 943314564Sdim if (m_regs[i].name && g_register_infos[i].name) { 944314564Sdim if (strcmp(m_regs[i].name, g_register_infos[i].name)) { 945254721Semaste match = false; 946314564Sdim break; 947314564Sdim } 948254721Semaste } 949314564Sdim 950314564Sdim // Make sure all register byte sizes match 951314564Sdim if (m_regs[i].byte_size != g_register_infos[i].byte_size) { 952314564Sdim match = false; 953314564Sdim break; 954314564Sdim } 955314564Sdim } 956314564Sdim } else { 957314564Sdim // Wrong number of registers. 958314564Sdim match = false; 959314564Sdim } 960314564Sdim // If "match" is true, then we can add extra registers. 961314564Sdim if (match) { 962314564Sdim for (i = 0; i < num_composites; ++i) { 963314564Sdim ConstString name; 964314564Sdim ConstString alt_name; 965314564Sdim const uint32_t first_primordial_reg = 966314564Sdim g_comp_register_infos[i].value_regs[0]; 967314564Sdim const char *reg_name = g_register_infos[first_primordial_reg].name; 968314564Sdim if (reg_name && reg_name[0]) { 969314564Sdim for (uint32_t j = 0; j < num_dynamic_regs; ++j) { 970314564Sdim const RegisterInfo *reg_info = GetRegisterInfoAtIndex(j); 971314564Sdim // Find a matching primordial register info entry. 972314564Sdim if (reg_info && reg_info->name && 973314564Sdim ::strcasecmp(reg_info->name, reg_name) == 0) { 974314564Sdim // The name matches the existing primordial entry. 975314564Sdim // Find and assign the offset, and then add this composite 976314564Sdim // register entry. 977314564Sdim g_comp_register_infos[i].byte_offset = reg_info->byte_offset; 978314564Sdim name.SetCString(g_comp_register_infos[i].name); 979314564Sdim AddRegister(g_comp_register_infos[i], name, alt_name, 980314564Sdim vfp_reg_set); 981254721Semaste } 982314564Sdim } 983254721Semaste } 984314564Sdim } 985254721Semaste } 986314564Sdim } 987254721Semaste} 988