1 //===-- PlatformDarwin.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 "lldb/lldb-python.h" 11 12 #include "PlatformDarwin.h" 13 14 // C Includes 15 // C++ Includes 16 // Other libraries and framework includes 17 // Project includes 18 #include "lldb/Breakpoint/BreakpointLocation.h" 19 #include "lldb/Core/Debugger.h" 20 #include "lldb/Core/Error.h" 21 #include "lldb/Core/Log.h" 22 #include "lldb/Core/Module.h" 23 #include "lldb/Core/ModuleSpec.h" 24 #include "lldb/Core/Timer.h" 25 #include "lldb/Host/Host.h" 26 #include "lldb/Host/HostInfo.h" 27 #include "lldb/Host/FileSystem.h" 28 #include "lldb/Host/Symbols.h" 29 #include "lldb/Symbol/ObjectFile.h" 30 #include "lldb/Symbol/SymbolFile.h" 31 #include "lldb/Symbol/SymbolVendor.h" 32 #include "lldb/Target/Target.h" 33 #include "llvm/ADT/STLExtras.h" 34 35 using namespace lldb; 36 using namespace lldb_private; 37 38 39 //------------------------------------------------------------------ 40 /// Default Constructor 41 //------------------------------------------------------------------ 42 PlatformDarwin::PlatformDarwin (bool is_host) : 43 PlatformPOSIX(is_host), // This is the local host platform 44 m_developer_directory () 45 { 46 } 47 48 //------------------------------------------------------------------ 49 /// Destructor. 50 /// 51 /// The destructor is virtual since this class is designed to be 52 /// inherited from by the plug-in instance. 53 //------------------------------------------------------------------ 54 PlatformDarwin::~PlatformDarwin() 55 { 56 } 57 58 FileSpecList 59 PlatformDarwin::LocateExecutableScriptingResources (Target *target, 60 Module &module, 61 Stream* feedback_stream) 62 { 63 FileSpecList file_list; 64 if (target && target->GetDebugger().GetScriptLanguage() == eScriptLanguagePython) 65 { 66 // NB some extensions might be meaningful and should not be stripped - "this.binary.file" 67 // should not lose ".file" but GetFileNameStrippingExtension() will do precisely that. 68 // Ideally, we should have a per-platform list of extensions (".exe", ".app", ".dSYM", ".framework") 69 // which should be stripped while leaving "this.binary.file" as-is. 70 FileSpec module_spec = module.GetFileSpec(); 71 72 if (module_spec) 73 { 74 SymbolVendor *symbols = module.GetSymbolVendor (); 75 if (symbols) 76 { 77 SymbolFile *symfile = symbols->GetSymbolFile(); 78 if (symfile) 79 { 80 ObjectFile *objfile = symfile->GetObjectFile(); 81 if (objfile) 82 { 83 FileSpec symfile_spec (objfile->GetFileSpec()); 84 if (symfile_spec && symfile_spec.Exists()) 85 { 86 while (module_spec.GetFilename()) 87 { 88 std::string module_basename (module_spec.GetFilename().GetCString()); 89 std::string original_module_basename (module_basename); 90 91 // FIXME: for Python, we cannot allow certain characters in module 92 // filenames we import. Theoretically, different scripting languages may 93 // have different sets of forbidden tokens in filenames, and that should 94 // be dealt with by each ScriptInterpreter. For now, we just replace dots 95 // with underscores, but if we ever support anything other than Python 96 // we will need to rework this 97 std::replace(module_basename.begin(), module_basename.end(), '.', '_'); 98 std::replace(module_basename.begin(), module_basename.end(), ' ', '_'); 99 std::replace(module_basename.begin(), module_basename.end(), '-', '_'); 100 101 102 StreamString path_string; 103 StreamString original_path_string; 104 // for OSX we are going to be in .dSYM/Contents/Resources/DWARF/<basename> 105 // let us go to .dSYM/Contents/Resources/Python/<basename>.py and see if the file exists 106 path_string.Printf("%s/../Python/%s.py",symfile_spec.GetDirectory().GetCString(), module_basename.c_str()); 107 original_path_string.Printf("%s/../Python/%s.py",symfile_spec.GetDirectory().GetCString(), original_module_basename.c_str()); 108 FileSpec script_fspec(path_string.GetData(), true); 109 FileSpec orig_script_fspec(original_path_string.GetData(), true); 110 111 // if we did some replacements of reserved characters, and a file with the untampered name 112 // exists, then warn the user that the file as-is shall not be loaded 113 if (feedback_stream) 114 { 115 if (module_basename != original_module_basename 116 && orig_script_fspec.Exists()) 117 { 118 if (script_fspec.Exists()) 119 feedback_stream->Printf("warning: the symbol file '%s' contains a debug script. However, its name" 120 " '%s' contains reserved characters and as such cannot be loaded. LLDB will" 121 " load '%s' instead. Consider removing the file with the malformed name to" 122 " eliminate this warning.\n", 123 symfile_spec.GetPath().c_str(), 124 original_path_string.GetData(), 125 path_string.GetData()); 126 else 127 feedback_stream->Printf("warning: the symbol file '%s' contains a debug script. However, its name" 128 " contains reserved characters and as such cannot be loaded. If you intend" 129 " to have this script loaded, please rename '%s' to '%s' and retry.\n", 130 symfile_spec.GetPath().c_str(), 131 original_path_string.GetData(), 132 path_string.GetData()); 133 } 134 } 135 136 if (script_fspec.Exists()) 137 { 138 file_list.Append (script_fspec); 139 break; 140 } 141 142 // If we didn't find the python file, then keep 143 // stripping the extensions and try again 144 ConstString filename_no_extension (module_spec.GetFileNameStrippingExtension()); 145 if (module_spec.GetFilename() == filename_no_extension) 146 break; 147 148 module_spec.GetFilename() = filename_no_extension; 149 } 150 } 151 } 152 } 153 } 154 } 155 } 156 return file_list; 157 } 158 159 Error 160 PlatformDarwin::ResolveExecutable (const FileSpec &exe_file, 161 const ArchSpec &exe_arch, 162 lldb::ModuleSP &exe_module_sp, 163 const FileSpecList *module_search_paths_ptr) 164 { 165 Error error; 166 // Nothing special to do here, just use the actual file and architecture 167 168 char exe_path[PATH_MAX]; 169 FileSpec resolved_exe_file (exe_file); 170 171 if (IsHost()) 172 { 173 // If we have "ls" as the exe_file, resolve the executable loation based on 174 // the current path variables 175 if (resolved_exe_file.Exists()) 176 { 177 178 } 179 else 180 { 181 exe_file.GetPath (exe_path, sizeof(exe_path)); 182 resolved_exe_file.SetFile(exe_path, true); 183 } 184 185 if (!resolved_exe_file.Exists()) 186 resolved_exe_file.ResolveExecutableLocation (); 187 188 // Resolve any executable within a bundle on MacOSX 189 Host::ResolveExecutableInBundle (resolved_exe_file); 190 191 if (resolved_exe_file.Exists()) 192 error.Clear(); 193 else 194 { 195 const uint32_t permissions = resolved_exe_file.GetPermissions(); 196 if (permissions && (permissions & eFilePermissionsEveryoneR) == 0) 197 error.SetErrorStringWithFormat ("executable '%s' is not readable", resolved_exe_file.GetPath().c_str()); 198 else 199 error.SetErrorStringWithFormat ("unable to find executable for '%s'", resolved_exe_file.GetPath().c_str()); 200 } 201 } 202 else 203 { 204 if (m_remote_platform_sp) 205 { 206 error = m_remote_platform_sp->ResolveExecutable (exe_file, 207 exe_arch, 208 exe_module_sp, 209 module_search_paths_ptr); 210 } 211 else 212 { 213 // We may connect to a process and use the provided executable (Don't use local $PATH). 214 215 // Resolve any executable within a bundle on MacOSX 216 Host::ResolveExecutableInBundle (resolved_exe_file); 217 218 if (resolved_exe_file.Exists()) 219 error.Clear(); 220 else 221 error.SetErrorStringWithFormat("the platform is not currently connected, and '%s' doesn't exist in the system root.", resolved_exe_file.GetFilename().AsCString("")); 222 } 223 } 224 225 226 if (error.Success()) 227 { 228 ModuleSpec module_spec (resolved_exe_file, exe_arch); 229 if (module_spec.GetArchitecture().IsValid()) 230 { 231 error = ModuleList::GetSharedModule (module_spec, 232 exe_module_sp, 233 module_search_paths_ptr, 234 NULL, 235 NULL); 236 237 if (error.Fail() || exe_module_sp.get() == NULL || exe_module_sp->GetObjectFile() == NULL) 238 { 239 exe_module_sp.reset(); 240 error.SetErrorStringWithFormat ("'%s' doesn't contain the architecture %s", 241 exe_file.GetPath().c_str(), 242 exe_arch.GetArchitectureName()); 243 } 244 } 245 else 246 { 247 // No valid architecture was specified, ask the platform for 248 // the architectures that we should be using (in the correct order) 249 // and see if we can find a match that way 250 StreamString arch_names; 251 for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, module_spec.GetArchitecture()); ++idx) 252 { 253 error = GetSharedModule (module_spec, 254 exe_module_sp, 255 module_search_paths_ptr, 256 NULL, 257 NULL); 258 // Did we find an executable using one of the 259 if (error.Success()) 260 { 261 if (exe_module_sp && exe_module_sp->GetObjectFile()) 262 break; 263 else 264 error.SetErrorToGenericError(); 265 } 266 267 if (idx > 0) 268 arch_names.PutCString (", "); 269 arch_names.PutCString (module_spec.GetArchitecture().GetArchitectureName()); 270 } 271 272 if (error.Fail() || !exe_module_sp) 273 { 274 if (exe_file.Readable()) 275 { 276 error.SetErrorStringWithFormat ("'%s' doesn't contain any '%s' platform architectures: %s", 277 exe_file.GetPath().c_str(), 278 GetPluginName().GetCString(), 279 arch_names.GetString().c_str()); 280 } 281 else 282 { 283 error.SetErrorStringWithFormat("'%s' is not readable", exe_file.GetPath().c_str()); 284 } 285 } 286 } 287 } 288 289 return error; 290 } 291 292 Error 293 PlatformDarwin::ResolveSymbolFile (Target &target, 294 const ModuleSpec &sym_spec, 295 FileSpec &sym_file) 296 { 297 Error error; 298 sym_file = sym_spec.GetSymbolFileSpec(); 299 if (sym_file.Exists()) 300 { 301 if (sym_file.GetFileType() == FileSpec::eFileTypeDirectory) 302 { 303 sym_file = Symbols::FindSymbolFileInBundle (sym_file, 304 sym_spec.GetUUIDPtr(), 305 sym_spec.GetArchitecturePtr()); 306 } 307 } 308 else 309 { 310 if (sym_spec.GetUUID().IsValid()) 311 { 312 313 } 314 } 315 return error; 316 317 } 318 319 static lldb_private::Error 320 MakeCacheFolderForFile (const FileSpec& module_cache_spec) 321 { 322 FileSpec module_cache_folder = module_cache_spec.CopyByRemovingLastPathComponent(); 323 return FileSystem::MakeDirectory(module_cache_folder.GetPath().c_str(), eFilePermissionsDirectoryDefault); 324 } 325 326 static lldb_private::Error 327 BringInRemoteFile (Platform* platform, 328 const lldb_private::ModuleSpec &module_spec, 329 const FileSpec& module_cache_spec) 330 { 331 MakeCacheFolderForFile(module_cache_spec); 332 Error err = platform->GetFile(module_spec.GetFileSpec(), module_cache_spec); 333 return err; 334 } 335 336 lldb_private::Error 337 PlatformDarwin::GetSharedModuleWithLocalCache (const lldb_private::ModuleSpec &module_spec, 338 lldb::ModuleSP &module_sp, 339 const lldb_private::FileSpecList *module_search_paths_ptr, 340 lldb::ModuleSP *old_module_sp_ptr, 341 bool *did_create_ptr) 342 { 343 344 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM)); 345 if (log) 346 log->Printf("[%s] Trying to find module %s/%s - platform path %s/%s symbol path %s/%s", 347 (IsHost() ? "host" : "remote"), 348 module_spec.GetFileSpec().GetDirectory().AsCString(), 349 module_spec.GetFileSpec().GetFilename().AsCString(), 350 module_spec.GetPlatformFileSpec().GetDirectory().AsCString(), 351 module_spec.GetPlatformFileSpec().GetFilename().AsCString(), 352 module_spec.GetSymbolFileSpec().GetDirectory().AsCString(), 353 module_spec.GetSymbolFileSpec().GetFilename().AsCString()); 354 355 Error err; 356 357 err = ModuleList::GetSharedModule(module_spec, module_sp, module_search_paths_ptr, old_module_sp_ptr, did_create_ptr); 358 if (module_sp) 359 return err; 360 361 if (!IsHost()) 362 { 363 std::string cache_path(GetLocalCacheDirectory()); 364 // Only search for a locally cached file if we have a valid cache path 365 if (!cache_path.empty()) 366 { 367 std::string module_path (module_spec.GetFileSpec().GetPath()); 368 cache_path.append(module_path); 369 FileSpec module_cache_spec(cache_path.c_str(),false); 370 371 // if rsync is supported, always bring in the file - rsync will be very efficient 372 // when files are the same on the local and remote end of the connection 373 if (this->GetSupportsRSync()) 374 { 375 err = BringInRemoteFile (this, module_spec, module_cache_spec); 376 if (err.Fail()) 377 return err; 378 if (module_cache_spec.Exists()) 379 { 380 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM)); 381 if (log) 382 log->Printf("[%s] module %s/%s was rsynced and is now there", 383 (IsHost() ? "host" : "remote"), 384 module_spec.GetFileSpec().GetDirectory().AsCString(), 385 module_spec.GetFileSpec().GetFilename().AsCString()); 386 ModuleSpec local_spec(module_cache_spec, module_spec.GetArchitecture()); 387 module_sp.reset(new Module(local_spec)); 388 module_sp->SetPlatformFileSpec(module_spec.GetFileSpec()); 389 return Error(); 390 } 391 } 392 393 // try to find the module in the cache 394 if (module_cache_spec.Exists()) 395 { 396 // get the local and remote MD5 and compare 397 if (m_remote_platform_sp) 398 { 399 // when going over the *slow* GDB remote transfer mechanism we first check 400 // the hashes of the files - and only do the actual transfer if they differ 401 uint64_t high_local,high_remote,low_local,low_remote; 402 FileSystem::CalculateMD5(module_cache_spec, low_local, high_local); 403 m_remote_platform_sp->CalculateMD5(module_spec.GetFileSpec(), low_remote, high_remote); 404 if (low_local != low_remote || high_local != high_remote) 405 { 406 // bring in the remote file 407 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM)); 408 if (log) 409 log->Printf("[%s] module %s/%s needs to be replaced from remote copy", 410 (IsHost() ? "host" : "remote"), 411 module_spec.GetFileSpec().GetDirectory().AsCString(), 412 module_spec.GetFileSpec().GetFilename().AsCString()); 413 Error err = BringInRemoteFile (this, module_spec, module_cache_spec); 414 if (err.Fail()) 415 return err; 416 } 417 } 418 419 ModuleSpec local_spec(module_cache_spec, module_spec.GetArchitecture()); 420 module_sp.reset(new Module(local_spec)); 421 module_sp->SetPlatformFileSpec(module_spec.GetFileSpec()); 422 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM)); 423 if (log) 424 log->Printf("[%s] module %s/%s was found in the cache", 425 (IsHost() ? "host" : "remote"), 426 module_spec.GetFileSpec().GetDirectory().AsCString(), 427 module_spec.GetFileSpec().GetFilename().AsCString()); 428 return Error(); 429 } 430 431 // bring in the remote module file 432 if (log) 433 log->Printf("[%s] module %s/%s needs to come in remotely", 434 (IsHost() ? "host" : "remote"), 435 module_spec.GetFileSpec().GetDirectory().AsCString(), 436 module_spec.GetFileSpec().GetFilename().AsCString()); 437 Error err = BringInRemoteFile (this, module_spec, module_cache_spec); 438 if (err.Fail()) 439 return err; 440 if (module_cache_spec.Exists()) 441 { 442 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM)); 443 if (log) 444 log->Printf("[%s] module %s/%s is now cached and fine", 445 (IsHost() ? "host" : "remote"), 446 module_spec.GetFileSpec().GetDirectory().AsCString(), 447 module_spec.GetFileSpec().GetFilename().AsCString()); 448 ModuleSpec local_spec(module_cache_spec, module_spec.GetArchitecture()); 449 module_sp.reset(new Module(local_spec)); 450 module_sp->SetPlatformFileSpec(module_spec.GetFileSpec()); 451 return Error(); 452 } 453 else 454 return Error("unable to obtain valid module file"); 455 } 456 else 457 return Error("no cache path"); 458 } 459 else 460 return Error ("unable to resolve module"); 461 } 462 463 Error 464 PlatformDarwin::GetSharedModule (const ModuleSpec &module_spec, 465 ModuleSP &module_sp, 466 const FileSpecList *module_search_paths_ptr, 467 ModuleSP *old_module_sp_ptr, 468 bool *did_create_ptr) 469 { 470 Error error; 471 module_sp.reset(); 472 473 if (IsRemote()) 474 { 475 // If we have a remote platform always, let it try and locate 476 // the shared module first. 477 if (m_remote_platform_sp) 478 { 479 error = m_remote_platform_sp->GetSharedModule (module_spec, 480 module_sp, 481 module_search_paths_ptr, 482 old_module_sp_ptr, 483 did_create_ptr); 484 } 485 } 486 487 if (!module_sp) 488 { 489 // Fall back to the local platform and find the file locally 490 error = Platform::GetSharedModule (module_spec, 491 module_sp, 492 module_search_paths_ptr, 493 old_module_sp_ptr, 494 did_create_ptr); 495 496 const FileSpec &platform_file = module_spec.GetFileSpec(); 497 if (!module_sp && module_search_paths_ptr && platform_file) 498 { 499 // We can try to pull off part of the file path up to the bundle 500 // directory level and try any module search paths... 501 FileSpec bundle_directory; 502 if (Host::GetBundleDirectory (platform_file, bundle_directory)) 503 { 504 if (platform_file == bundle_directory) 505 { 506 ModuleSpec new_module_spec (module_spec); 507 new_module_spec.GetFileSpec() = bundle_directory; 508 if (Host::ResolveExecutableInBundle (new_module_spec.GetFileSpec())) 509 { 510 Error new_error (Platform::GetSharedModule (new_module_spec, 511 module_sp, 512 NULL, 513 old_module_sp_ptr, 514 did_create_ptr)); 515 516 if (module_sp) 517 return new_error; 518 } 519 } 520 else 521 { 522 char platform_path[PATH_MAX]; 523 char bundle_dir[PATH_MAX]; 524 platform_file.GetPath (platform_path, sizeof(platform_path)); 525 const size_t bundle_directory_len = bundle_directory.GetPath (bundle_dir, sizeof(bundle_dir)); 526 char new_path[PATH_MAX]; 527 size_t num_module_search_paths = module_search_paths_ptr->GetSize(); 528 for (size_t i=0; i<num_module_search_paths; ++i) 529 { 530 const size_t search_path_len = module_search_paths_ptr->GetFileSpecAtIndex(i).GetPath(new_path, sizeof(new_path)); 531 if (search_path_len < sizeof(new_path)) 532 { 533 snprintf (new_path + search_path_len, sizeof(new_path) - search_path_len, "/%s", platform_path + bundle_directory_len); 534 FileSpec new_file_spec (new_path, false); 535 if (new_file_spec.Exists()) 536 { 537 ModuleSpec new_module_spec (module_spec); 538 new_module_spec.GetFileSpec() = new_file_spec; 539 Error new_error (Platform::GetSharedModule (new_module_spec, 540 module_sp, 541 NULL, 542 old_module_sp_ptr, 543 did_create_ptr)); 544 545 if (module_sp) 546 { 547 module_sp->SetPlatformFileSpec(new_file_spec); 548 return new_error; 549 } 550 } 551 } 552 } 553 } 554 } 555 } 556 } 557 if (module_sp) 558 module_sp->SetPlatformFileSpec(module_spec.GetFileSpec()); 559 return error; 560 } 561 562 size_t 563 PlatformDarwin::GetSoftwareBreakpointTrapOpcode (Target &target, BreakpointSite *bp_site) 564 { 565 const uint8_t *trap_opcode = NULL; 566 uint32_t trap_opcode_size = 0; 567 bool bp_is_thumb = false; 568 569 llvm::Triple::ArchType machine = target.GetArchitecture().GetMachine(); 570 switch (machine) 571 { 572 case llvm::Triple::x86: 573 case llvm::Triple::x86_64: 574 { 575 static const uint8_t g_i386_breakpoint_opcode[] = { 0xCC }; 576 trap_opcode = g_i386_breakpoint_opcode; 577 trap_opcode_size = sizeof(g_i386_breakpoint_opcode); 578 } 579 break; 580 581 case llvm::Triple::aarch64: 582 { 583 // TODO: fix this with actual darwin breakpoint opcode for arm64. 584 // right now debugging uses the Z packets with GDB remote so this 585 // is not needed, but the size needs to be correct... 586 static const uint8_t g_arm64_breakpoint_opcode[] = { 0xFE, 0xDE, 0xFF, 0xE7 }; 587 trap_opcode = g_arm64_breakpoint_opcode; 588 trap_opcode_size = sizeof(g_arm64_breakpoint_opcode); 589 } 590 break; 591 592 case llvm::Triple::thumb: 593 bp_is_thumb = true; // Fall through... 594 case llvm::Triple::arm: 595 { 596 static const uint8_t g_arm_breakpoint_opcode[] = { 0xFE, 0xDE, 0xFF, 0xE7 }; 597 static const uint8_t g_thumb_breakpooint_opcode[] = { 0xFE, 0xDE }; 598 599 // Auto detect arm/thumb if it wasn't explicitly specified 600 if (!bp_is_thumb) 601 { 602 lldb::BreakpointLocationSP bp_loc_sp (bp_site->GetOwnerAtIndex (0)); 603 if (bp_loc_sp) 604 bp_is_thumb = bp_loc_sp->GetAddress().GetAddressClass () == eAddressClassCodeAlternateISA; 605 } 606 if (bp_is_thumb) 607 { 608 trap_opcode = g_thumb_breakpooint_opcode; 609 trap_opcode_size = sizeof(g_thumb_breakpooint_opcode); 610 break; 611 } 612 trap_opcode = g_arm_breakpoint_opcode; 613 trap_opcode_size = sizeof(g_arm_breakpoint_opcode); 614 } 615 break; 616 617 case llvm::Triple::ppc: 618 case llvm::Triple::ppc64: 619 { 620 static const uint8_t g_ppc_breakpoint_opcode[] = { 0x7F, 0xC0, 0x00, 0x08 }; 621 trap_opcode = g_ppc_breakpoint_opcode; 622 trap_opcode_size = sizeof(g_ppc_breakpoint_opcode); 623 } 624 break; 625 626 default: 627 assert(!"Unhandled architecture in PlatformDarwin::GetSoftwareBreakpointTrapOpcode()"); 628 break; 629 } 630 631 if (trap_opcode && trap_opcode_size) 632 { 633 if (bp_site->SetTrapOpcode(trap_opcode, trap_opcode_size)) 634 return trap_opcode_size; 635 } 636 return 0; 637 638 } 639 640 bool 641 PlatformDarwin::GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &process_info) 642 { 643 bool sucess = false; 644 if (IsHost()) 645 { 646 sucess = Platform::GetProcessInfo (pid, process_info); 647 } 648 else 649 { 650 if (m_remote_platform_sp) 651 sucess = m_remote_platform_sp->GetProcessInfo (pid, process_info); 652 } 653 return sucess; 654 } 655 656 uint32_t 657 PlatformDarwin::FindProcesses (const ProcessInstanceInfoMatch &match_info, 658 ProcessInstanceInfoList &process_infos) 659 { 660 uint32_t match_count = 0; 661 if (IsHost()) 662 { 663 // Let the base class figure out the host details 664 match_count = Platform::FindProcesses (match_info, process_infos); 665 } 666 else 667 { 668 // If we are remote, we can only return results if we are connected 669 if (m_remote_platform_sp) 670 match_count = m_remote_platform_sp->FindProcesses (match_info, process_infos); 671 } 672 return match_count; 673 } 674 675 bool 676 PlatformDarwin::ModuleIsExcludedForNonModuleSpecificSearches (lldb_private::Target &target, const lldb::ModuleSP &module_sp) 677 { 678 if (!module_sp) 679 return false; 680 681 ObjectFile *obj_file = module_sp->GetObjectFile(); 682 if (!obj_file) 683 return false; 684 685 ObjectFile::Type obj_type = obj_file->GetType(); 686 if (obj_type == ObjectFile::eTypeDynamicLinker) 687 return true; 688 else 689 return false; 690 } 691 692 bool 693 PlatformDarwin::x86GetSupportedArchitectureAtIndex (uint32_t idx, ArchSpec &arch) 694 { 695 ArchSpec host_arch = HostInfo::GetArchitecture(HostInfo::eArchKindDefault); 696 if (host_arch.GetCore() == ArchSpec::eCore_x86_64_x86_64h) 697 { 698 switch (idx) 699 { 700 case 0: 701 arch = host_arch; 702 return true; 703 704 case 1: 705 arch.SetTriple("x86_64-apple-macosx"); 706 return true; 707 708 case 2: 709 arch = HostInfo::GetArchitecture(HostInfo::eArchKind32); 710 return true; 711 712 default: return false; 713 } 714 } 715 else 716 { 717 if (idx == 0) 718 { 719 arch = HostInfo::GetArchitecture(HostInfo::eArchKindDefault); 720 return arch.IsValid(); 721 } 722 else if (idx == 1) 723 { 724 ArchSpec platform_arch(HostInfo::GetArchitecture(HostInfo::eArchKindDefault)); 725 ArchSpec platform_arch64(HostInfo::GetArchitecture(HostInfo::eArchKind64)); 726 if (platform_arch.IsExactMatch(platform_arch64)) 727 { 728 // This macosx platform supports both 32 and 64 bit. Since we already 729 // returned the 64 bit arch for idx == 0, return the 32 bit arch 730 // for idx == 1 731 arch = HostInfo::GetArchitecture(HostInfo::eArchKind32); 732 return arch.IsValid(); 733 } 734 } 735 } 736 return false; 737 } 738 739 // The architecture selection rules for arm processors 740 // These cpu subtypes have distinct names (e.g. armv7f) but armv7 binaries run fine on an armv7f processor. 741 742 bool 743 PlatformDarwin::ARMGetSupportedArchitectureAtIndex (uint32_t idx, ArchSpec &arch) 744 { 745 ArchSpec system_arch (GetSystemArchitecture()); 746 747 const ArchSpec::Core system_core = system_arch.GetCore(); 748 switch (system_core) 749 { 750 default: 751 switch (idx) 752 { 753 case 0: arch.SetTriple ("arm64-apple-ios"); return true; 754 case 1: arch.SetTriple ("armv7-apple-ios"); return true; 755 case 2: arch.SetTriple ("armv7f-apple-ios"); return true; 756 case 3: arch.SetTriple ("armv7k-apple-ios"); return true; 757 case 4: arch.SetTriple ("armv7s-apple-ios"); return true; 758 case 5: arch.SetTriple ("armv7m-apple-ios"); return true; 759 case 6: arch.SetTriple ("armv7em-apple-ios"); return true; 760 case 7: arch.SetTriple ("armv6m-apple-ios"); return true; 761 case 8: arch.SetTriple ("armv6-apple-ios"); return true; 762 case 9: arch.SetTriple ("armv5-apple-ios"); return true; 763 case 10: arch.SetTriple ("armv4-apple-ios"); return true; 764 case 11: arch.SetTriple ("arm-apple-ios"); return true; 765 case 12: arch.SetTriple ("thumbv7-apple-ios"); return true; 766 case 13: arch.SetTriple ("thumbv7f-apple-ios"); return true; 767 case 14: arch.SetTriple ("thumbv7k-apple-ios"); return true; 768 case 15: arch.SetTriple ("thumbv7s-apple-ios"); return true; 769 case 16: arch.SetTriple ("thumbv7m-apple-ios"); return true; 770 case 17: arch.SetTriple ("thumbv7em-apple-ios"); return true; 771 case 18: arch.SetTriple ("thumbv6m-apple-ios"); return true; 772 case 19: arch.SetTriple ("thumbv6-apple-ios"); return true; 773 case 20: arch.SetTriple ("thumbv5-apple-ios"); return true; 774 case 21: arch.SetTriple ("thumbv4t-apple-ios"); return true; 775 case 22: arch.SetTriple ("thumb-apple-ios"); return true; 776 default: break; 777 } 778 break; 779 780 case ArchSpec::eCore_arm_arm64: 781 switch (idx) 782 { 783 case 0: arch.SetTriple ("arm64-apple-ios"); return true; 784 case 1: arch.SetTriple ("armv7s-apple-ios"); return true; 785 case 2: arch.SetTriple ("armv7f-apple-ios"); return true; 786 case 3: arch.SetTriple ("armv7m-apple-ios"); return true; 787 case 4: arch.SetTriple ("armv7em-apple-ios"); return true; 788 case 5: arch.SetTriple ("armv7-apple-ios"); return true; 789 case 6: arch.SetTriple ("armv6m-apple-ios"); return true; 790 case 7: arch.SetTriple ("armv6-apple-ios"); return true; 791 case 8: arch.SetTriple ("armv5-apple-ios"); return true; 792 case 9: arch.SetTriple ("armv4-apple-ios"); return true; 793 case 10: arch.SetTriple ("arm-apple-ios"); return true; 794 case 11: arch.SetTriple ("thumbv7-apple-ios"); return true; 795 case 12: arch.SetTriple ("thumbv7f-apple-ios"); return true; 796 case 13: arch.SetTriple ("thumbv7k-apple-ios"); return true; 797 case 14: arch.SetTriple ("thumbv7s-apple-ios"); return true; 798 case 15: arch.SetTriple ("thumbv7m-apple-ios"); return true; 799 case 16: arch.SetTriple ("thumbv7em-apple-ios"); return true; 800 case 17: arch.SetTriple ("thumbv6m-apple-ios"); return true; 801 case 18: arch.SetTriple ("thumbv6-apple-ios"); return true; 802 case 19: arch.SetTriple ("thumbv5-apple-ios"); return true; 803 case 20: arch.SetTriple ("thumbv4t-apple-ios"); return true; 804 case 21: arch.SetTriple ("thumb-apple-ios"); return true; 805 default: break; 806 } 807 break; 808 809 case ArchSpec::eCore_arm_armv7f: 810 switch (idx) 811 { 812 case 0: arch.SetTriple ("armv7f-apple-ios"); return true; 813 case 1: arch.SetTriple ("armv7-apple-ios"); return true; 814 case 2: arch.SetTriple ("armv6m-apple-ios"); return true; 815 case 3: arch.SetTriple ("armv6-apple-ios"); return true; 816 case 4: arch.SetTriple ("armv5-apple-ios"); return true; 817 case 5: arch.SetTriple ("armv4-apple-ios"); return true; 818 case 6: arch.SetTriple ("arm-apple-ios"); return true; 819 case 7: arch.SetTriple ("thumbv7f-apple-ios"); return true; 820 case 8: arch.SetTriple ("thumbv7-apple-ios"); return true; 821 case 9: arch.SetTriple ("thumbv6m-apple-ios"); return true; 822 case 10: arch.SetTriple ("thumbv6-apple-ios"); return true; 823 case 11: arch.SetTriple ("thumbv5-apple-ios"); return true; 824 case 12: arch.SetTriple ("thumbv4t-apple-ios"); return true; 825 case 13: arch.SetTriple ("thumb-apple-ios"); return true; 826 default: break; 827 } 828 break; 829 830 case ArchSpec::eCore_arm_armv7k: 831 switch (idx) 832 { 833 case 0: arch.SetTriple ("armv7k-apple-ios"); return true; 834 case 1: arch.SetTriple ("armv7-apple-ios"); return true; 835 case 2: arch.SetTriple ("armv6m-apple-ios"); return true; 836 case 3: arch.SetTriple ("armv6-apple-ios"); return true; 837 case 4: arch.SetTriple ("armv5-apple-ios"); return true; 838 case 5: arch.SetTriple ("armv4-apple-ios"); return true; 839 case 6: arch.SetTriple ("arm-apple-ios"); return true; 840 case 7: arch.SetTriple ("thumbv7k-apple-ios"); return true; 841 case 8: arch.SetTriple ("thumbv7-apple-ios"); return true; 842 case 9: arch.SetTriple ("thumbv6m-apple-ios"); return true; 843 case 10: arch.SetTriple ("thumbv6-apple-ios"); return true; 844 case 11: arch.SetTriple ("thumbv5-apple-ios"); return true; 845 case 12: arch.SetTriple ("thumbv4t-apple-ios"); return true; 846 case 13: arch.SetTriple ("thumb-apple-ios"); return true; 847 default: break; 848 } 849 break; 850 851 case ArchSpec::eCore_arm_armv7s: 852 switch (idx) 853 { 854 case 0: arch.SetTriple ("armv7s-apple-ios"); return true; 855 case 1: arch.SetTriple ("armv7-apple-ios"); return true; 856 case 2: arch.SetTriple ("armv6m-apple-ios"); return true; 857 case 3: arch.SetTriple ("armv6-apple-ios"); return true; 858 case 4: arch.SetTriple ("armv5-apple-ios"); return true; 859 case 5: arch.SetTriple ("armv4-apple-ios"); return true; 860 case 6: arch.SetTriple ("arm-apple-ios"); return true; 861 case 7: arch.SetTriple ("thumbv7s-apple-ios"); return true; 862 case 8: arch.SetTriple ("thumbv7-apple-ios"); return true; 863 case 9: arch.SetTriple ("thumbv6m-apple-ios"); return true; 864 case 10: arch.SetTriple ("thumbv6-apple-ios"); return true; 865 case 11: arch.SetTriple ("thumbv5-apple-ios"); return true; 866 case 12: arch.SetTriple ("thumbv4t-apple-ios"); return true; 867 case 13: arch.SetTriple ("thumb-apple-ios"); return true; 868 default: break; 869 } 870 break; 871 872 case ArchSpec::eCore_arm_armv7m: 873 switch (idx) 874 { 875 case 0: arch.SetTriple ("armv7m-apple-ios"); return true; 876 case 1: arch.SetTriple ("armv7-apple-ios"); return true; 877 case 2: arch.SetTriple ("armv6m-apple-ios"); return true; 878 case 3: arch.SetTriple ("armv6-apple-ios"); return true; 879 case 4: arch.SetTriple ("armv5-apple-ios"); return true; 880 case 5: arch.SetTriple ("armv4-apple-ios"); return true; 881 case 6: arch.SetTriple ("arm-apple-ios"); return true; 882 case 7: arch.SetTriple ("thumbv7m-apple-ios"); return true; 883 case 8: arch.SetTriple ("thumbv7-apple-ios"); return true; 884 case 9: arch.SetTriple ("thumbv6m-apple-ios"); return true; 885 case 10: arch.SetTriple ("thumbv6-apple-ios"); return true; 886 case 11: arch.SetTriple ("thumbv5-apple-ios"); return true; 887 case 12: arch.SetTriple ("thumbv4t-apple-ios"); return true; 888 case 13: arch.SetTriple ("thumb-apple-ios"); return true; 889 default: break; 890 } 891 break; 892 893 case ArchSpec::eCore_arm_armv7em: 894 switch (idx) 895 { 896 case 0: arch.SetTriple ("armv7em-apple-ios"); return true; 897 case 1: arch.SetTriple ("armv7-apple-ios"); return true; 898 case 2: arch.SetTriple ("armv6m-apple-ios"); return true; 899 case 3: arch.SetTriple ("armv6-apple-ios"); return true; 900 case 4: arch.SetTriple ("armv5-apple-ios"); return true; 901 case 5: arch.SetTriple ("armv4-apple-ios"); return true; 902 case 6: arch.SetTriple ("arm-apple-ios"); return true; 903 case 7: arch.SetTriple ("thumbv7em-apple-ios"); return true; 904 case 8: arch.SetTriple ("thumbv7-apple-ios"); return true; 905 case 9: arch.SetTriple ("thumbv6m-apple-ios"); return true; 906 case 10: arch.SetTriple ("thumbv6-apple-ios"); return true; 907 case 11: arch.SetTriple ("thumbv5-apple-ios"); return true; 908 case 12: arch.SetTriple ("thumbv4t-apple-ios"); return true; 909 case 13: arch.SetTriple ("thumb-apple-ios"); return true; 910 default: break; 911 } 912 break; 913 914 case ArchSpec::eCore_arm_armv7: 915 switch (idx) 916 { 917 case 0: arch.SetTriple ("armv7-apple-ios"); return true; 918 case 1: arch.SetTriple ("armv6m-apple-ios"); return true; 919 case 2: arch.SetTriple ("armv6-apple-ios"); return true; 920 case 3: arch.SetTriple ("armv5-apple-ios"); return true; 921 case 4: arch.SetTriple ("armv4-apple-ios"); return true; 922 case 5: arch.SetTriple ("arm-apple-ios"); return true; 923 case 6: arch.SetTriple ("thumbv7-apple-ios"); return true; 924 case 7: arch.SetTriple ("thumbv6m-apple-ios"); return true; 925 case 8: arch.SetTriple ("thumbv6-apple-ios"); return true; 926 case 9: arch.SetTriple ("thumbv5-apple-ios"); return true; 927 case 10: arch.SetTriple ("thumbv4t-apple-ios"); return true; 928 case 11: arch.SetTriple ("thumb-apple-ios"); return true; 929 default: break; 930 } 931 break; 932 933 case ArchSpec::eCore_arm_armv6m: 934 switch (idx) 935 { 936 case 0: arch.SetTriple ("armv6m-apple-ios"); return true; 937 case 1: arch.SetTriple ("armv6-apple-ios"); return true; 938 case 2: arch.SetTriple ("armv5-apple-ios"); return true; 939 case 3: arch.SetTriple ("armv4-apple-ios"); return true; 940 case 4: arch.SetTriple ("arm-apple-ios"); return true; 941 case 5: arch.SetTriple ("thumbv6m-apple-ios"); return true; 942 case 6: arch.SetTriple ("thumbv6-apple-ios"); return true; 943 case 7: arch.SetTriple ("thumbv5-apple-ios"); return true; 944 case 8: arch.SetTriple ("thumbv4t-apple-ios"); return true; 945 case 9: arch.SetTriple ("thumb-apple-ios"); return true; 946 default: break; 947 } 948 break; 949 950 case ArchSpec::eCore_arm_armv6: 951 switch (idx) 952 { 953 case 0: arch.SetTriple ("armv6-apple-ios"); return true; 954 case 1: arch.SetTriple ("armv5-apple-ios"); return true; 955 case 2: arch.SetTriple ("armv4-apple-ios"); return true; 956 case 3: arch.SetTriple ("arm-apple-ios"); return true; 957 case 4: arch.SetTriple ("thumbv6-apple-ios"); return true; 958 case 5: arch.SetTriple ("thumbv5-apple-ios"); return true; 959 case 6: arch.SetTriple ("thumbv4t-apple-ios"); return true; 960 case 7: arch.SetTriple ("thumb-apple-ios"); return true; 961 default: break; 962 } 963 break; 964 965 case ArchSpec::eCore_arm_armv5: 966 switch (idx) 967 { 968 case 0: arch.SetTriple ("armv5-apple-ios"); return true; 969 case 1: arch.SetTriple ("armv4-apple-ios"); return true; 970 case 2: arch.SetTriple ("arm-apple-ios"); return true; 971 case 3: arch.SetTriple ("thumbv5-apple-ios"); return true; 972 case 4: arch.SetTriple ("thumbv4t-apple-ios"); return true; 973 case 5: arch.SetTriple ("thumb-apple-ios"); return true; 974 default: break; 975 } 976 break; 977 978 case ArchSpec::eCore_arm_armv4: 979 switch (idx) 980 { 981 case 0: arch.SetTriple ("armv4-apple-ios"); return true; 982 case 1: arch.SetTriple ("arm-apple-ios"); return true; 983 case 2: arch.SetTriple ("thumbv4t-apple-ios"); return true; 984 case 3: arch.SetTriple ("thumb-apple-ios"); return true; 985 default: break; 986 } 987 break; 988 } 989 arch.Clear(); 990 return false; 991 } 992 993 994 const char * 995 PlatformDarwin::GetDeveloperDirectory() 996 { 997 if (m_developer_directory.empty()) 998 { 999 bool developer_dir_path_valid = false; 1000 char developer_dir_path[PATH_MAX]; 1001 FileSpec temp_file_spec; 1002 if (HostInfo::GetLLDBPath(ePathTypeLLDBShlibDir, temp_file_spec)) 1003 { 1004 if (temp_file_spec.GetPath (developer_dir_path, sizeof(developer_dir_path))) 1005 { 1006 char *shared_frameworks = strstr (developer_dir_path, "/SharedFrameworks/LLDB.framework"); 1007 if (shared_frameworks) 1008 { 1009 ::snprintf (shared_frameworks, 1010 sizeof(developer_dir_path) - (shared_frameworks - developer_dir_path), 1011 "/Developer"); 1012 developer_dir_path_valid = true; 1013 } 1014 else 1015 { 1016 char *lib_priv_frameworks = strstr (developer_dir_path, "/Library/PrivateFrameworks/LLDB.framework"); 1017 if (lib_priv_frameworks) 1018 { 1019 *lib_priv_frameworks = '\0'; 1020 developer_dir_path_valid = true; 1021 } 1022 } 1023 } 1024 } 1025 1026 if (!developer_dir_path_valid) 1027 { 1028 std::string xcode_dir_path; 1029 const char *xcode_select_prefix_dir = getenv ("XCODE_SELECT_PREFIX_DIR"); 1030 if (xcode_select_prefix_dir) 1031 xcode_dir_path.append (xcode_select_prefix_dir); 1032 xcode_dir_path.append ("/usr/share/xcode-select/xcode_dir_path"); 1033 temp_file_spec.SetFile(xcode_dir_path.c_str(), false); 1034 size_t bytes_read = temp_file_spec.ReadFileContents(0, developer_dir_path, sizeof(developer_dir_path), NULL); 1035 if (bytes_read > 0) 1036 { 1037 developer_dir_path[bytes_read] = '\0'; 1038 while (developer_dir_path[bytes_read-1] == '\r' || 1039 developer_dir_path[bytes_read-1] == '\n') 1040 developer_dir_path[--bytes_read] = '\0'; 1041 developer_dir_path_valid = true; 1042 } 1043 } 1044 1045 if (!developer_dir_path_valid) 1046 { 1047 FileSpec xcode_select_cmd ("/usr/bin/xcode-select", false); 1048 if (xcode_select_cmd.Exists()) 1049 { 1050 int exit_status = -1; 1051 int signo = -1; 1052 std::string command_output; 1053 Error error = Host::RunShellCommand ("/usr/bin/xcode-select --print-path", 1054 NULL, // current working directory 1055 &exit_status, 1056 &signo, 1057 &command_output, 1058 2, // short timeout 1059 false); // don't run in a shell 1060 if (error.Success() && exit_status == 0 && !command_output.empty()) 1061 { 1062 const char *cmd_output_ptr = command_output.c_str(); 1063 developer_dir_path[sizeof (developer_dir_path) - 1] = '\0'; 1064 size_t i; 1065 for (i = 0; i < sizeof (developer_dir_path) - 1; i++) 1066 { 1067 if (cmd_output_ptr[i] == '\r' || cmd_output_ptr[i] == '\n' || cmd_output_ptr[i] == '\0') 1068 break; 1069 developer_dir_path[i] = cmd_output_ptr[i]; 1070 } 1071 developer_dir_path[i] = '\0'; 1072 1073 FileSpec devel_dir (developer_dir_path, false); 1074 if (devel_dir.Exists() && devel_dir.IsDirectory()) 1075 { 1076 developer_dir_path_valid = true; 1077 } 1078 } 1079 } 1080 } 1081 1082 if (developer_dir_path_valid) 1083 { 1084 temp_file_spec.SetFile (developer_dir_path, false); 1085 if (temp_file_spec.Exists()) 1086 { 1087 m_developer_directory.assign (developer_dir_path); 1088 return m_developer_directory.c_str(); 1089 } 1090 } 1091 // Assign a single NULL character so we know we tried to find the device 1092 // support directory and we don't keep trying to find it over and over. 1093 m_developer_directory.assign (1, '\0'); 1094 } 1095 1096 // We should have put a single NULL character into m_developer_directory 1097 // or it should have a valid path if the code gets here 1098 assert (m_developer_directory.empty() == false); 1099 if (m_developer_directory[0]) 1100 return m_developer_directory.c_str(); 1101 return NULL; 1102 } 1103 1104 1105 BreakpointSP 1106 PlatformDarwin::SetThreadCreationBreakpoint (Target &target) 1107 { 1108 BreakpointSP bp_sp; 1109 static const char *g_bp_names[] = 1110 { 1111 "start_wqthread", 1112 "_pthread_wqthread", 1113 "_pthread_start", 1114 }; 1115 1116 static const char *g_bp_modules[] = 1117 { 1118 "libsystem_c.dylib", 1119 "libSystem.B.dylib" 1120 }; 1121 1122 FileSpecList bp_modules; 1123 for (size_t i = 0; i < llvm::array_lengthof(g_bp_modules); i++) 1124 { 1125 const char *bp_module = g_bp_modules[i]; 1126 bp_modules.Append(FileSpec(bp_module, false)); 1127 } 1128 1129 bool internal = true; 1130 bool hardware = false; 1131 LazyBool skip_prologue = eLazyBoolNo; 1132 bp_sp = target.CreateBreakpoint (&bp_modules, 1133 NULL, 1134 g_bp_names, 1135 llvm::array_lengthof(g_bp_names), 1136 eFunctionNameTypeFull, 1137 skip_prologue, 1138 internal, 1139 hardware); 1140 bp_sp->SetBreakpointKind("thread-creation"); 1141 1142 return bp_sp; 1143 } 1144 1145 1146 int32_t 1147 PlatformDarwin::GetResumeCountForLaunchInfo (ProcessLaunchInfo &launch_info) 1148 { 1149 const FileSpec &shell = launch_info.GetShell(); 1150 if (!shell) 1151 return 1; 1152 1153 std::string shell_string = shell.GetPath(); 1154 const char *shell_name = strrchr (shell_string.c_str(), '/'); 1155 if (shell_name == NULL) 1156 shell_name = shell_string.c_str(); 1157 else 1158 shell_name++; 1159 1160 if (strcmp (shell_name, "sh") == 0) 1161 { 1162 // /bin/sh re-exec's itself as /bin/bash requiring another resume. 1163 // But it only does this if the COMMAND_MODE environment variable 1164 // is set to "legacy". 1165 char * const *envp = (char * const*)launch_info.GetEnvironmentEntries().GetConstArgumentVector(); 1166 if (envp != NULL) 1167 { 1168 for (int i = 0; envp[i] != NULL; i++) 1169 { 1170 if (strcmp (envp[i], "COMMAND_MODE=legacy" ) == 0) 1171 return 2; 1172 } 1173 } 1174 return 1; 1175 } 1176 else if (strcmp (shell_name, "csh") == 0 1177 || strcmp (shell_name, "tcsh") == 0 1178 || strcmp (shell_name, "zsh") == 0) 1179 { 1180 // csh and tcsh always seem to re-exec themselves. 1181 return 2; 1182 } 1183 else 1184 return 1; 1185 } 1186 1187 void 1188 PlatformDarwin::CalculateTrapHandlerSymbolNames () 1189 { 1190 m_trap_handlers.push_back (ConstString ("_sigtramp")); 1191 } 1192