1 //===-- DynamicRegisterInfo.cpp ----------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "DynamicRegisterInfo.h" 11 12 // C Includes 13 // C++ Includes 14 // Other libraries and framework includes 15 // Project includes 16 #include "lldb/Core/ArchSpec.h" 17 #include "lldb/Core/RegularExpression.h" 18 #include "lldb/Core/StreamFile.h" 19 #include "lldb/Core/StructuredData.h" 20 #include "lldb/DataFormatters/FormatManager.h" 21 #include "lldb/Host/StringConvert.h" 22 23 using namespace lldb; 24 using namespace lldb_private; 25 26 DynamicRegisterInfo::DynamicRegisterInfo () : 27 m_regs (), 28 m_sets (), 29 m_set_reg_nums (), 30 m_set_names (), 31 m_value_regs_map (), 32 m_invalidate_regs_map (), 33 m_reg_data_byte_size (0), 34 m_finalized (false) 35 { 36 } 37 38 DynamicRegisterInfo::DynamicRegisterInfo(const lldb_private::StructuredData::Dictionary &dict, 39 const lldb_private::ArchSpec &arch) : 40 m_regs (), 41 m_sets (), 42 m_set_reg_nums (), 43 m_set_names (), 44 m_value_regs_map (), 45 m_invalidate_regs_map (), 46 m_reg_data_byte_size (0), 47 m_finalized (false) 48 { 49 SetRegisterInfo (dict, arch); 50 } 51 52 DynamicRegisterInfo::~DynamicRegisterInfo () 53 { 54 } 55 56 size_t 57 DynamicRegisterInfo::SetRegisterInfo(const StructuredData::Dictionary &dict, const ArchSpec &arch) 58 { 59 assert(!m_finalized); 60 StructuredData::Array *sets = nullptr; 61 if (dict.GetValueForKeyAsArray("sets", sets)) 62 { 63 const uint32_t num_sets = sets->GetSize(); 64 for (uint32_t i=0; i<num_sets; ++i) 65 { 66 std::string set_name_str; 67 ConstString set_name; 68 if (sets->GetItemAtIndexAsString(i, set_name_str)) 69 set_name.SetCString(set_name_str.c_str()); 70 if (set_name) 71 { 72 RegisterSet new_set = { set_name.AsCString(), NULL, 0, NULL }; 73 m_sets.push_back (new_set); 74 } 75 else 76 { 77 Clear(); 78 printf("error: register sets must have valid names\n"); 79 return 0; 80 } 81 } 82 m_set_reg_nums.resize(m_sets.size()); 83 } 84 StructuredData::Array *regs = nullptr; 85 if (!dict.GetValueForKeyAsArray("registers", regs)) 86 return 0; 87 88 const uint32_t num_regs = regs->GetSize(); 89 // typedef std::map<std::string, std::vector<std::string> > InvalidateNameMap; 90 // InvalidateNameMap invalidate_map; 91 for (uint32_t i = 0; i < num_regs; ++i) 92 { 93 StructuredData::Dictionary *reg_info_dict = nullptr; 94 if (!regs->GetItemAtIndexAsDictionary(i, reg_info_dict)) 95 { 96 Clear(); 97 printf("error: items in the 'registers' array must be dictionaries\n"); 98 regs->DumpToStdout(); 99 return 0; 100 } 101 102 // { 'name':'rcx' , 'bitsize' : 64, 'offset' : 16, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 2, 103 // 'dwarf' : 2, 'generic':'arg4', 'alt-name':'arg4', }, 104 RegisterInfo reg_info; 105 std::vector<uint32_t> value_regs; 106 std::vector<uint32_t> invalidate_regs; 107 memset(®_info, 0, sizeof(reg_info)); 108 109 ConstString name_val; 110 ConstString alt_name_val; 111 if (!reg_info_dict->GetValueForKeyAsString("name", name_val, nullptr)) 112 { 113 Clear(); 114 printf("error: registers must have valid names and offsets\n"); 115 reg_info_dict->DumpToStdout(); 116 return 0; 117 } 118 reg_info.name = name_val.GetCString(); 119 reg_info_dict->GetValueForKeyAsString("alt-name", alt_name_val, nullptr); 120 reg_info.alt_name = alt_name_val.GetCString(); 121 122 reg_info_dict->GetValueForKeyAsInteger("offset", reg_info.byte_offset, UINT32_MAX); 123 124 const ByteOrder byte_order = arch.GetByteOrder(); 125 126 if (reg_info.byte_offset == UINT32_MAX) 127 { 128 // No offset for this register, see if the register has a value expression 129 // which indicates this register is part of another register. Value expressions 130 // are things like "rax[31:0]" which state that the current register's value 131 // is in a concrete register "rax" in bits 31:0. If there is a value expression 132 // we can calculate the offset 133 bool success = false; 134 std::string slice_str; 135 if (reg_info_dict->GetValueForKeyAsString("slice", slice_str, nullptr)) 136 { 137 // Slices use the following format: 138 // REGNAME[MSBIT:LSBIT] 139 // REGNAME - name of the register to grab a slice of 140 // MSBIT - the most significant bit at which the current register value starts at 141 // LSBIT - the least significant bit at which the current register value ends at 142 static RegularExpression g_bitfield_regex("([A-Za-z_][A-Za-z0-9_]*)\\[([0-9]+):([0-9]+)\\]"); 143 RegularExpression::Match regex_match(3); 144 if (g_bitfield_regex.Execute(slice_str.c_str(), ®ex_match)) 145 { 146 llvm::StringRef reg_name_str; 147 std::string msbit_str; 148 std::string lsbit_str; 149 if (regex_match.GetMatchAtIndex(slice_str.c_str(), 1, reg_name_str) && 150 regex_match.GetMatchAtIndex(slice_str.c_str(), 2, msbit_str) && 151 regex_match.GetMatchAtIndex(slice_str.c_str(), 3, lsbit_str)) 152 { 153 const uint32_t msbit = StringConvert::ToUInt32(msbit_str.c_str(), UINT32_MAX); 154 const uint32_t lsbit = StringConvert::ToUInt32(lsbit_str.c_str(), UINT32_MAX); 155 if (msbit != UINT32_MAX && lsbit != UINT32_MAX) 156 { 157 if (msbit > lsbit) 158 { 159 const uint32_t msbyte = msbit / 8; 160 const uint32_t lsbyte = lsbit / 8; 161 162 ConstString containing_reg_name(reg_name_str); 163 164 RegisterInfo *containing_reg_info = GetRegisterInfo(containing_reg_name); 165 if (containing_reg_info) 166 { 167 const uint32_t max_bit = containing_reg_info->byte_size * 8; 168 if (msbit < max_bit && lsbit < max_bit) 169 { 170 m_invalidate_regs_map[containing_reg_info->kinds[eRegisterKindLLDB]].push_back(i); 171 m_value_regs_map[i].push_back(containing_reg_info->kinds[eRegisterKindLLDB]); 172 m_invalidate_regs_map[i].push_back(containing_reg_info->kinds[eRegisterKindLLDB]); 173 174 if (byte_order == eByteOrderLittle) 175 { 176 success = true; 177 reg_info.byte_offset = containing_reg_info->byte_offset + lsbyte; 178 } 179 else if (byte_order == eByteOrderBig) 180 { 181 success = true; 182 reg_info.byte_offset = containing_reg_info->byte_offset + msbyte; 183 } 184 else 185 { 186 assert(!"Invalid byte order"); 187 } 188 } 189 else 190 { 191 if (msbit > max_bit) 192 printf("error: msbit (%u) must be less than the bitsize of the register (%u)\n", msbit, 193 max_bit); 194 else 195 printf("error: lsbit (%u) must be less than the bitsize of the register (%u)\n", lsbit, 196 max_bit); 197 } 198 } 199 else 200 { 201 printf("error: invalid concrete register \"%s\"\n", containing_reg_name.GetCString()); 202 } 203 } 204 else 205 { 206 printf("error: msbit (%u) must be greater than lsbit (%u)\n", msbit, lsbit); 207 } 208 } 209 else 210 { 211 printf("error: msbit (%u) and lsbit (%u) must be valid\n", msbit, lsbit); 212 } 213 } 214 else 215 { 216 // TODO: print error invalid slice string that doesn't follow the format 217 printf("error: failed to extract regex matches for parsing the register bitfield regex\n"); 218 } 219 } 220 else 221 { 222 // TODO: print error invalid slice string that doesn't follow the format 223 printf("error: failed to match against register bitfield regex\n"); 224 } 225 } 226 else 227 { 228 StructuredData::Array *composite_reg_list = nullptr; 229 if (reg_info_dict->GetValueForKeyAsArray("composite", composite_reg_list)) 230 { 231 const size_t num_composite_regs = composite_reg_list->GetSize(); 232 if (num_composite_regs > 0) 233 { 234 uint32_t composite_offset = UINT32_MAX; 235 for (uint32_t composite_idx = 0; composite_idx < num_composite_regs; ++composite_idx) 236 { 237 ConstString composite_reg_name; 238 if (composite_reg_list->GetItemAtIndexAsString(composite_idx, composite_reg_name, nullptr)) 239 { 240 RegisterInfo *composite_reg_info = GetRegisterInfo(composite_reg_name); 241 if (composite_reg_info) 242 { 243 composite_offset = std::min(composite_offset, composite_reg_info->byte_offset); 244 m_value_regs_map[i].push_back(composite_reg_info->kinds[eRegisterKindLLDB]); 245 m_invalidate_regs_map[composite_reg_info->kinds[eRegisterKindLLDB]].push_back(i); 246 m_invalidate_regs_map[i].push_back(composite_reg_info->kinds[eRegisterKindLLDB]); 247 } 248 else 249 { 250 // TODO: print error invalid slice string that doesn't follow the format 251 printf("error: failed to find composite register by name: \"%s\"\n", composite_reg_name.GetCString()); 252 } 253 } 254 else 255 { 256 printf("error: 'composite' list value wasn't a python string\n"); 257 } 258 } 259 if (composite_offset != UINT32_MAX) 260 { 261 reg_info.byte_offset = composite_offset; 262 success = m_value_regs_map.find(i) != m_value_regs_map.end(); 263 } 264 else 265 { 266 printf("error: 'composite' registers must specify at least one real register\n"); 267 } 268 } 269 else 270 { 271 printf("error: 'composite' list was empty\n"); 272 } 273 } 274 } 275 276 if (!success) 277 { 278 Clear(); 279 reg_info_dict->DumpToStdout(); 280 return 0; 281 } 282 } 283 284 int64_t bitsize = 0; 285 if (!reg_info_dict->GetValueForKeyAsInteger("bitsize", bitsize)) 286 { 287 Clear(); 288 printf("error: invalid or missing 'bitsize' key/value pair in register dictionary\n"); 289 reg_info_dict->DumpToStdout(); 290 return 0; 291 } 292 293 reg_info.byte_size = bitsize / 8; 294 295 std::string format_str; 296 if (reg_info_dict->GetValueForKeyAsString("format", format_str, nullptr)) 297 { 298 if (Args::StringToFormat(format_str.c_str(), reg_info.format, NULL).Fail()) 299 { 300 Clear(); 301 printf("error: invalid 'format' value in register dictionary\n"); 302 reg_info_dict->DumpToStdout(); 303 return 0; 304 } 305 } 306 else 307 { 308 reg_info_dict->GetValueForKeyAsInteger("format", reg_info.format, eFormatHex); 309 } 310 311 std::string encoding_str; 312 if (reg_info_dict->GetValueForKeyAsString("encoding", encoding_str)) 313 reg_info.encoding = Args::StringToEncoding(encoding_str.c_str(), eEncodingUint); 314 else 315 reg_info_dict->GetValueForKeyAsInteger("encoding", reg_info.encoding, eEncodingUint); 316 317 size_t set = 0; 318 if (!reg_info_dict->GetValueForKeyAsInteger<size_t>("set", set, -1) || set >= m_sets.size()) 319 { 320 Clear(); 321 printf("error: invalid 'set' value in register dictionary, valid values are 0 - %i\n", (int)set); 322 reg_info_dict->DumpToStdout(); 323 return 0; 324 } 325 326 // Fill in the register numbers 327 reg_info.kinds[lldb::eRegisterKindLLDB] = i; 328 reg_info.kinds[lldb::eRegisterKindGDB] = i; 329 reg_info_dict->GetValueForKeyAsInteger("gcc", reg_info.kinds[lldb::eRegisterKindGCC], LLDB_INVALID_REGNUM); 330 reg_info_dict->GetValueForKeyAsInteger("dwarf", reg_info.kinds[lldb::eRegisterKindDWARF], LLDB_INVALID_REGNUM); 331 std::string generic_str; 332 if (reg_info_dict->GetValueForKeyAsString("generic", generic_str)) 333 reg_info.kinds[lldb::eRegisterKindGeneric] = Args::StringToGenericRegister(generic_str.c_str()); 334 else 335 reg_info_dict->GetValueForKeyAsInteger("generic", reg_info.kinds[lldb::eRegisterKindGeneric], LLDB_INVALID_REGNUM); 336 337 // Check if this register invalidates any other register values when it is modified 338 StructuredData::Array *invalidate_reg_list = nullptr; 339 if (reg_info_dict->GetValueForKeyAsArray("invalidate-regs", invalidate_reg_list)) 340 { 341 const size_t num_regs = invalidate_reg_list->GetSize(); 342 if (num_regs > 0) 343 { 344 for (uint32_t idx = 0; idx < num_regs; ++idx) 345 { 346 ConstString invalidate_reg_name; 347 uint64_t invalidate_reg_num; 348 if (invalidate_reg_list->GetItemAtIndexAsString(idx, invalidate_reg_name)) 349 { 350 RegisterInfo *invalidate_reg_info = GetRegisterInfo(invalidate_reg_name); 351 if (invalidate_reg_info) 352 { 353 m_invalidate_regs_map[i].push_back(invalidate_reg_info->kinds[eRegisterKindLLDB]); 354 } 355 else 356 { 357 // TODO: print error invalid slice string that doesn't follow the format 358 printf("error: failed to find a 'invalidate-regs' register for \"%s\" while parsing register \"%s\"\n", 359 invalidate_reg_name.GetCString(), reg_info.name); 360 } 361 } 362 else if (invalidate_reg_list->GetItemAtIndexAsInteger(idx, invalidate_reg_num)) 363 { 364 if (invalidate_reg_num != UINT64_MAX) 365 m_invalidate_regs_map[i].push_back(invalidate_reg_num); 366 else 367 printf("error: 'invalidate-regs' list value wasn't a valid integer\n"); 368 } 369 else 370 { 371 printf("error: 'invalidate-regs' list value wasn't a python string or integer\n"); 372 } 373 } 374 } 375 else 376 { 377 printf("error: 'invalidate-regs' contained an empty list\n"); 378 } 379 } 380 381 // Calculate the register offset 382 const size_t end_reg_offset = reg_info.byte_offset + reg_info.byte_size; 383 if (m_reg_data_byte_size < end_reg_offset) 384 m_reg_data_byte_size = end_reg_offset; 385 386 m_regs.push_back(reg_info); 387 m_set_reg_nums[set].push_back(i); 388 } 389 Finalize(arch); 390 return m_regs.size(); 391 } 392 393 394 void 395 DynamicRegisterInfo::AddRegister (RegisterInfo ®_info, 396 ConstString ®_name, 397 ConstString ®_alt_name, 398 ConstString &set_name) 399 { 400 assert(!m_finalized); 401 const uint32_t reg_num = m_regs.size(); 402 reg_info.name = reg_name.AsCString(); 403 assert (reg_info.name); 404 reg_info.alt_name = reg_alt_name.AsCString(NULL); 405 uint32_t i; 406 if (reg_info.value_regs) 407 { 408 for (i=0; reg_info.value_regs[i] != LLDB_INVALID_REGNUM; ++i) 409 m_value_regs_map[reg_num].push_back(reg_info.value_regs[i]); 410 } 411 if (reg_info.invalidate_regs) 412 { 413 for (i=0; reg_info.invalidate_regs[i] != LLDB_INVALID_REGNUM; ++i) 414 m_invalidate_regs_map[reg_num].push_back(reg_info.invalidate_regs[i]); 415 } 416 m_regs.push_back (reg_info); 417 uint32_t set = GetRegisterSetIndexByName (set_name, true); 418 assert (set < m_sets.size()); 419 assert (set < m_set_reg_nums.size()); 420 assert (set < m_set_names.size()); 421 m_set_reg_nums[set].push_back(reg_num); 422 size_t end_reg_offset = reg_info.byte_offset + reg_info.byte_size; 423 if (m_reg_data_byte_size < end_reg_offset) 424 m_reg_data_byte_size = end_reg_offset; 425 } 426 427 void 428 DynamicRegisterInfo::Finalize (const ArchSpec &arch) 429 { 430 if (m_finalized) 431 return; 432 433 m_finalized = true; 434 const size_t num_sets = m_sets.size(); 435 for (size_t set = 0; set < num_sets; ++set) 436 { 437 assert (m_sets.size() == m_set_reg_nums.size()); 438 m_sets[set].num_registers = m_set_reg_nums[set].size(); 439 m_sets[set].registers = &m_set_reg_nums[set][0]; 440 } 441 442 // sort and unique all value registers and make sure each is terminated with 443 // LLDB_INVALID_REGNUM 444 445 for (reg_to_regs_map::iterator pos = m_value_regs_map.begin(), end = m_value_regs_map.end(); 446 pos != end; 447 ++pos) 448 { 449 if (pos->second.size() > 1) 450 { 451 std::sort (pos->second.begin(), pos->second.end()); 452 reg_num_collection::iterator unique_end = std::unique (pos->second.begin(), pos->second.end()); 453 if (unique_end != pos->second.end()) 454 pos->second.erase(unique_end, pos->second.end()); 455 } 456 assert (!pos->second.empty()); 457 if (pos->second.back() != LLDB_INVALID_REGNUM) 458 pos->second.push_back(LLDB_INVALID_REGNUM); 459 } 460 461 // Now update all value_regs with each register info as needed 462 const size_t num_regs = m_regs.size(); 463 for (size_t i=0; i<num_regs; ++i) 464 { 465 if (m_value_regs_map.find(i) != m_value_regs_map.end()) 466 m_regs[i].value_regs = m_value_regs_map[i].data(); 467 else 468 m_regs[i].value_regs = NULL; 469 } 470 471 // Expand all invalidation dependencies 472 for (reg_to_regs_map::iterator pos = m_invalidate_regs_map.begin(), end = m_invalidate_regs_map.end(); 473 pos != end; 474 ++pos) 475 { 476 const uint32_t reg_num = pos->first; 477 478 if (m_regs[reg_num].value_regs) 479 { 480 reg_num_collection extra_invalid_regs; 481 for (const uint32_t invalidate_reg_num : pos->second) 482 { 483 reg_to_regs_map::iterator invalidate_pos = m_invalidate_regs_map.find(invalidate_reg_num); 484 if (invalidate_pos != m_invalidate_regs_map.end()) 485 { 486 for (const uint32_t concrete_invalidate_reg_num : invalidate_pos->second) 487 { 488 if (concrete_invalidate_reg_num != reg_num) 489 extra_invalid_regs.push_back(concrete_invalidate_reg_num); 490 } 491 } 492 } 493 pos->second.insert(pos->second.end(), extra_invalid_regs.begin(), extra_invalid_regs.end()); 494 } 495 } 496 497 // sort and unique all invalidate registers and make sure each is terminated with 498 // LLDB_INVALID_REGNUM 499 for (reg_to_regs_map::iterator pos = m_invalidate_regs_map.begin(), end = m_invalidate_regs_map.end(); 500 pos != end; 501 ++pos) 502 { 503 if (pos->second.size() > 1) 504 { 505 std::sort (pos->second.begin(), pos->second.end()); 506 reg_num_collection::iterator unique_end = std::unique (pos->second.begin(), pos->second.end()); 507 if (unique_end != pos->second.end()) 508 pos->second.erase(unique_end, pos->second.end()); 509 } 510 assert (!pos->second.empty()); 511 if (pos->second.back() != LLDB_INVALID_REGNUM) 512 pos->second.push_back(LLDB_INVALID_REGNUM); 513 } 514 515 // Now update all invalidate_regs with each register info as needed 516 for (size_t i=0; i<num_regs; ++i) 517 { 518 if (m_invalidate_regs_map.find(i) != m_invalidate_regs_map.end()) 519 m_regs[i].invalidate_regs = m_invalidate_regs_map[i].data(); 520 else 521 m_regs[i].invalidate_regs = NULL; 522 } 523 524 // Check if we need to automatically set the generic registers in case 525 // they weren't set 526 bool generic_regs_specified = false; 527 for (const auto ®: m_regs) 528 { 529 if (reg.kinds[eRegisterKindGeneric] != LLDB_INVALID_REGNUM) 530 { 531 generic_regs_specified = true; 532 break; 533 } 534 } 535 536 if (!generic_regs_specified) 537 { 538 switch (arch.GetMachine()) 539 { 540 case llvm::Triple::aarch64: 541 case llvm::Triple::aarch64_be: 542 for (auto ®: m_regs) 543 { 544 if (strcmp(reg.name, "pc") == 0) 545 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC; 546 else if ((strcmp(reg.name, "fp") == 0) || (strcmp(reg.name, "x29") == 0)) 547 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP; 548 else if ((strcmp(reg.name, "lr") == 0) || (strcmp(reg.name, "x30") == 0)) 549 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_RA; 550 else if ((strcmp(reg.name, "sp") == 0) || (strcmp(reg.name, "x31") == 0)) 551 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP; 552 else if (strcmp(reg.name, "cpsr") == 0) 553 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS; 554 } 555 break; 556 557 case llvm::Triple::arm: 558 case llvm::Triple::armeb: 559 case llvm::Triple::thumb: 560 case llvm::Triple::thumbeb: 561 for (auto ®: m_regs) 562 { 563 if ((strcmp(reg.name, "pc") == 0) || (strcmp(reg.name, "r15") == 0)) 564 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC; 565 else if ((strcmp(reg.name, "sp") == 0) || (strcmp(reg.name, "r13") == 0)) 566 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP; 567 else if ((strcmp(reg.name, "lr") == 0) || (strcmp(reg.name, "r14") == 0)) 568 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_RA; 569 else if ((strcmp(reg.name, "r7") == 0) && arch.GetTriple().getVendor() == llvm::Triple::Apple) 570 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP; 571 else if ((strcmp(reg.name, "r11") == 0) && arch.GetTriple().getVendor() != llvm::Triple::Apple) 572 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP; 573 else if (strcmp(reg.name, "fp") == 0) 574 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP; 575 else if (strcmp(reg.name, "cpsr") == 0) 576 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS; 577 } 578 break; 579 580 case llvm::Triple::x86: 581 for (auto ®: m_regs) 582 { 583 if ((strcmp(reg.name, "eip") == 0) || (strcmp(reg.name, "pc") == 0)) 584 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC; 585 else if ((strcmp(reg.name, "esp") == 0) || (strcmp(reg.name, "sp") == 0)) 586 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP; 587 else if ((strcmp(reg.name, "ebp") == 0) || (strcmp(reg.name, "fp") == 0)) 588 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP; 589 else if ((strcmp(reg.name, "eflags") == 0) || (strcmp(reg.name, "flags") == 0)) 590 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS; 591 } 592 break; 593 594 case llvm::Triple::x86_64: 595 for (auto ®: m_regs) 596 { 597 if ((strcmp(reg.name, "rip") == 0) || (strcmp(reg.name, "pc") == 0)) 598 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC; 599 else if ((strcmp(reg.name, "rsp") == 0) || (strcmp(reg.name, "sp") == 0)) 600 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP; 601 else if ((strcmp(reg.name, "rbp") == 0) || (strcmp(reg.name, "fp") == 0)) 602 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP; 603 else if ((strcmp(reg.name, "rflags") == 0) || (strcmp(reg.name, "flags") == 0)) 604 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS; 605 } 606 break; 607 608 default: 609 break; 610 } 611 } 612 } 613 614 size_t 615 DynamicRegisterInfo::GetNumRegisters() const 616 { 617 return m_regs.size(); 618 } 619 620 size_t 621 DynamicRegisterInfo::GetNumRegisterSets() const 622 { 623 return m_sets.size(); 624 } 625 626 size_t 627 DynamicRegisterInfo::GetRegisterDataByteSize() const 628 { 629 return m_reg_data_byte_size; 630 } 631 632 const RegisterInfo * 633 DynamicRegisterInfo::GetRegisterInfoAtIndex (uint32_t i) const 634 { 635 if (i < m_regs.size()) 636 return &m_regs[i]; 637 return NULL; 638 } 639 640 const RegisterSet * 641 DynamicRegisterInfo::GetRegisterSet (uint32_t i) const 642 { 643 if (i < m_sets.size()) 644 return &m_sets[i]; 645 return NULL; 646 } 647 648 uint32_t 649 DynamicRegisterInfo::GetRegisterSetIndexByName (ConstString &set_name, bool can_create) 650 { 651 name_collection::iterator pos, end = m_set_names.end(); 652 for (pos = m_set_names.begin(); pos != end; ++pos) 653 { 654 if (*pos == set_name) 655 return std::distance (m_set_names.begin(), pos); 656 } 657 658 m_set_names.push_back(set_name); 659 m_set_reg_nums.resize(m_set_reg_nums.size()+1); 660 RegisterSet new_set = { set_name.AsCString(), NULL, 0, NULL }; 661 m_sets.push_back (new_set); 662 return m_sets.size() - 1; 663 } 664 665 uint32_t 666 DynamicRegisterInfo::ConvertRegisterKindToRegisterNumber (uint32_t kind, uint32_t num) const 667 { 668 reg_collection::const_iterator pos, end = m_regs.end(); 669 for (pos = m_regs.begin(); pos != end; ++pos) 670 { 671 if (pos->kinds[kind] == num) 672 return std::distance (m_regs.begin(), pos); 673 } 674 675 return LLDB_INVALID_REGNUM; 676 } 677 678 void 679 DynamicRegisterInfo::Clear() 680 { 681 m_regs.clear(); 682 m_sets.clear(); 683 m_set_reg_nums.clear(); 684 m_set_names.clear(); 685 m_value_regs_map.clear(); 686 m_invalidate_regs_map.clear(); 687 m_reg_data_byte_size = 0; 688 m_finalized = false; 689 } 690 691 void 692 DynamicRegisterInfo::Dump () const 693 { 694 StreamFile s(stdout, false); 695 const size_t num_regs = m_regs.size(); 696 s.Printf("%p: DynamicRegisterInfo contains %" PRIu64 " registers:\n", 697 static_cast<const void*>(this), static_cast<uint64_t>(num_regs)); 698 for (size_t i=0; i<num_regs; ++i) 699 { 700 s.Printf("[%3" PRIu64 "] name = %-10s", (uint64_t)i, m_regs[i].name); 701 s.Printf(", size = %2u, offset = %4u, encoding = %u, format = %-10s", 702 m_regs[i].byte_size, 703 m_regs[i].byte_offset, 704 m_regs[i].encoding, 705 FormatManager::GetFormatAsCString (m_regs[i].format)); 706 if (m_regs[i].kinds[eRegisterKindGDB] != LLDB_INVALID_REGNUM) 707 s.Printf(", gdb = %3u", m_regs[i].kinds[eRegisterKindGDB]); 708 if (m_regs[i].kinds[eRegisterKindDWARF] != LLDB_INVALID_REGNUM) 709 s.Printf(", dwarf = %3u", m_regs[i].kinds[eRegisterKindDWARF]); 710 if (m_regs[i].kinds[eRegisterKindGCC] != LLDB_INVALID_REGNUM) 711 s.Printf(", gcc = %3u", m_regs[i].kinds[eRegisterKindGCC]); 712 if (m_regs[i].kinds[eRegisterKindGeneric] != LLDB_INVALID_REGNUM) 713 s.Printf(", generic = %3u", m_regs[i].kinds[eRegisterKindGeneric]); 714 if (m_regs[i].alt_name) 715 s.Printf(", alt-name = %s", m_regs[i].alt_name); 716 if (m_regs[i].value_regs) 717 { 718 s.Printf(", value_regs = [ "); 719 for (size_t j=0; m_regs[i].value_regs[j] != LLDB_INVALID_REGNUM; ++j) 720 { 721 s.Printf("%s ", m_regs[m_regs[i].value_regs[j]].name); 722 } 723 s.Printf("]"); 724 } 725 if (m_regs[i].invalidate_regs) 726 { 727 s.Printf(", invalidate_regs = [ "); 728 for (size_t j=0; m_regs[i].invalidate_regs[j] != LLDB_INVALID_REGNUM; ++j) 729 { 730 s.Printf("%s ", m_regs[m_regs[i].invalidate_regs[j]].name); 731 } 732 s.Printf("]"); 733 } 734 s.EOL(); 735 } 736 737 const size_t num_sets = m_sets.size(); 738 s.Printf("%p: DynamicRegisterInfo contains %" PRIu64 " register sets:\n", 739 static_cast<const void*>(this), static_cast<uint64_t>(num_sets)); 740 for (size_t i=0; i<num_sets; ++i) 741 { 742 s.Printf("set[%" PRIu64 "] name = %s, regs = [", (uint64_t)i, m_sets[i].name); 743 for (size_t idx=0; idx<m_sets[i].num_registers; ++idx) 744 { 745 s.Printf("%s ", m_regs[m_sets[i].registers[idx]].name); 746 } 747 s.Printf("]\n"); 748 } 749 } 750 751 752 753 lldb_private::RegisterInfo * 754 DynamicRegisterInfo::GetRegisterInfo (const lldb_private::ConstString ®_name) 755 { 756 for (auto ®_info : m_regs) 757 { 758 // We can use pointer comparison since we used a ConstString to set 759 // the "name" member in AddRegister() 760 if (reg_info.name == reg_name.GetCString()) 761 { 762 return ®_info; 763 } 764 } 765 return NULL; 766 } 767