1 //===-- Platform.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/Target/Platform.h" 11 12 // C Includes 13 // C++ Includes 14 // Other libraries and framework includes 15 // Project includes 16 #include "lldb/Breakpoint/BreakpointIDList.h" 17 #include "lldb/Core/Error.h" 18 #include "lldb/Core/Log.h" 19 #include "lldb/Core/ModuleSpec.h" 20 #include "lldb/Core/PluginManager.h" 21 #include "lldb/Host/FileSpec.h" 22 #include "lldb/Host/Host.h" 23 #include "lldb/Target/Process.h" 24 #include "lldb/Target/Target.h" 25 #include "lldb/Utility/Utils.h" 26 27 using namespace lldb; 28 using namespace lldb_private; 29 30 // Use a singleton function for g_local_platform_sp to avoid init 31 // constructors since LLDB is often part of a shared library 32 static PlatformSP& 33 GetDefaultPlatformSP () 34 { 35 static PlatformSP g_default_platform_sp; 36 return g_default_platform_sp; 37 } 38 39 static Mutex & 40 GetConnectedPlatformListMutex () 41 { 42 static Mutex g_remote_connected_platforms_mutex (Mutex::eMutexTypeRecursive); 43 return g_remote_connected_platforms_mutex; 44 } 45 static std::vector<PlatformSP> & 46 GetConnectedPlatformList () 47 { 48 static std::vector<PlatformSP> g_remote_connected_platforms; 49 return g_remote_connected_platforms; 50 } 51 52 53 const char * 54 Platform::GetHostPlatformName () 55 { 56 return "host"; 57 } 58 59 //------------------------------------------------------------------ 60 /// Get the native host platform plug-in. 61 /// 62 /// There should only be one of these for each host that LLDB runs 63 /// upon that should be statically compiled in and registered using 64 /// preprocessor macros or other similar build mechanisms. 65 /// 66 /// This platform will be used as the default platform when launching 67 /// or attaching to processes unless another platform is specified. 68 //------------------------------------------------------------------ 69 PlatformSP 70 Platform::GetDefaultPlatform () 71 { 72 return GetDefaultPlatformSP (); 73 } 74 75 void 76 Platform::SetDefaultPlatform (const lldb::PlatformSP &platform_sp) 77 { 78 // The native platform should use its static void Platform::Initialize() 79 // function to register itself as the native platform. 80 GetDefaultPlatformSP () = platform_sp; 81 } 82 83 Error 84 Platform::GetFile (const FileSpec &platform_file, 85 const UUID *uuid_ptr, 86 FileSpec &local_file) 87 { 88 // Default to the local case 89 local_file = platform_file; 90 return Error(); 91 } 92 93 FileSpecList 94 Platform::LocateExecutableScriptingResources (Target *target, Module &module) 95 { 96 return FileSpecList(); 97 } 98 99 Platform* 100 Platform::FindPlugin (Process *process, const ConstString &plugin_name) 101 { 102 PlatformCreateInstance create_callback = NULL; 103 if (plugin_name) 104 { 105 create_callback = PluginManager::GetPlatformCreateCallbackForPluginName (plugin_name); 106 if (create_callback) 107 { 108 ArchSpec arch; 109 if (process) 110 { 111 arch = process->GetTarget().GetArchitecture(); 112 } 113 std::unique_ptr<Platform> instance_ap(create_callback(process, &arch)); 114 if (instance_ap.get()) 115 return instance_ap.release(); 116 } 117 } 118 else 119 { 120 for (uint32_t idx = 0; (create_callback = PluginManager::GetPlatformCreateCallbackAtIndex(idx)) != NULL; ++idx) 121 { 122 std::unique_ptr<Platform> instance_ap(create_callback(process, nullptr)); 123 if (instance_ap.get()) 124 return instance_ap.release(); 125 } 126 } 127 return NULL; 128 } 129 130 Error 131 Platform::GetSharedModule (const ModuleSpec &module_spec, 132 ModuleSP &module_sp, 133 const FileSpecList *module_search_paths_ptr, 134 ModuleSP *old_module_sp_ptr, 135 bool *did_create_ptr) 136 { 137 // Don't do any path remapping for the default implementation 138 // of the platform GetSharedModule function, just call through 139 // to our static ModuleList function. Platform subclasses that 140 // implement remote debugging, might have a developer kits 141 // installed that have cached versions of the files for the 142 // remote target, or might implement a download and cache 143 // locally implementation. 144 const bool always_create = false; 145 return ModuleList::GetSharedModule (module_spec, 146 module_sp, 147 module_search_paths_ptr, 148 old_module_sp_ptr, 149 did_create_ptr, 150 always_create); 151 } 152 153 PlatformSP 154 Platform::Create (const char *platform_name, Error &error) 155 { 156 PlatformCreateInstance create_callback = NULL; 157 lldb::PlatformSP platform_sp; 158 if (platform_name && platform_name[0]) 159 { 160 ConstString const_platform_name (platform_name); 161 create_callback = PluginManager::GetPlatformCreateCallbackForPluginName (const_platform_name); 162 if (create_callback) 163 platform_sp.reset(create_callback(true, NULL)); 164 else 165 error.SetErrorStringWithFormat ("unable to find a plug-in for the platform named \"%s\"", platform_name); 166 } 167 else 168 error.SetErrorString ("invalid platform name"); 169 return platform_sp; 170 } 171 172 173 PlatformSP 174 Platform::Create (const ArchSpec &arch, ArchSpec *platform_arch_ptr, Error &error) 175 { 176 lldb::PlatformSP platform_sp; 177 if (arch.IsValid()) 178 { 179 uint32_t idx; 180 PlatformCreateInstance create_callback; 181 // First try exact arch matches across all platform plug-ins 182 bool exact = true; 183 for (idx = 0; (create_callback = PluginManager::GetPlatformCreateCallbackAtIndex (idx)); ++idx) 184 { 185 if (create_callback) 186 { 187 platform_sp.reset(create_callback(false, &arch)); 188 if (platform_sp && platform_sp->IsCompatibleArchitecture(arch, exact, platform_arch_ptr)) 189 return platform_sp; 190 } 191 } 192 // Next try compatible arch matches across all platform plug-ins 193 exact = false; 194 for (idx = 0; (create_callback = PluginManager::GetPlatformCreateCallbackAtIndex (idx)); ++idx) 195 { 196 if (create_callback) 197 { 198 platform_sp.reset(create_callback(false, &arch)); 199 if (platform_sp && platform_sp->IsCompatibleArchitecture(arch, exact, platform_arch_ptr)) 200 return platform_sp; 201 } 202 } 203 } 204 else 205 error.SetErrorString ("invalid platform name"); 206 if (platform_arch_ptr) 207 platform_arch_ptr->Clear(); 208 platform_sp.reset(); 209 return platform_sp; 210 } 211 212 uint32_t 213 Platform::GetNumConnectedRemotePlatforms () 214 { 215 Mutex::Locker locker (GetConnectedPlatformListMutex ()); 216 return GetConnectedPlatformList().size(); 217 } 218 219 PlatformSP 220 Platform::GetConnectedRemotePlatformAtIndex (uint32_t idx) 221 { 222 PlatformSP platform_sp; 223 { 224 Mutex::Locker locker (GetConnectedPlatformListMutex ()); 225 if (idx < GetConnectedPlatformList().size()) 226 platform_sp = GetConnectedPlatformList ()[idx]; 227 } 228 return platform_sp; 229 } 230 231 //------------------------------------------------------------------ 232 /// Default Constructor 233 //------------------------------------------------------------------ 234 Platform::Platform (bool is_host) : 235 m_is_host (is_host), 236 m_os_version_set_while_connected (false), 237 m_system_arch_set_while_connected (false), 238 m_sdk_sysroot (), 239 m_sdk_build (), 240 m_working_dir (), 241 m_remote_url (), 242 m_name (), 243 m_major_os_version (UINT32_MAX), 244 m_minor_os_version (UINT32_MAX), 245 m_update_os_version (UINT32_MAX), 246 m_system_arch(), 247 m_uid_map_mutex (Mutex::eMutexTypeNormal), 248 m_gid_map_mutex (Mutex::eMutexTypeNormal), 249 m_uid_map(), 250 m_gid_map(), 251 m_max_uid_name_len (0), 252 m_max_gid_name_len (0), 253 m_supports_rsync (false), 254 m_rsync_opts (), 255 m_rsync_prefix (), 256 m_supports_ssh (false), 257 m_ssh_opts (), 258 m_ignores_remote_hostname (false) 259 { 260 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); 261 if (log) 262 log->Printf ("%p Platform::Platform()", this); 263 } 264 265 //------------------------------------------------------------------ 266 /// Destructor. 267 /// 268 /// The destructor is virtual since this class is designed to be 269 /// inherited from by the plug-in instance. 270 //------------------------------------------------------------------ 271 Platform::~Platform() 272 { 273 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); 274 if (log) 275 log->Printf ("%p Platform::~Platform()", this); 276 } 277 278 void 279 Platform::GetStatus (Stream &strm) 280 { 281 uint32_t major = UINT32_MAX; 282 uint32_t minor = UINT32_MAX; 283 uint32_t update = UINT32_MAX; 284 std::string s; 285 strm.Printf (" Platform: %s\n", GetPluginName().GetCString()); 286 287 ArchSpec arch (GetSystemArchitecture()); 288 if (arch.IsValid()) 289 { 290 if (!arch.GetTriple().str().empty()) 291 strm.Printf(" Triple: %s\n", arch.GetTriple().str().c_str()); 292 } 293 294 if (GetOSVersion(major, minor, update)) 295 { 296 strm.Printf("OS Version: %u", major); 297 if (minor != UINT32_MAX) 298 strm.Printf(".%u", minor); 299 if (update != UINT32_MAX) 300 strm.Printf(".%u", update); 301 302 if (GetOSBuildString (s)) 303 strm.Printf(" (%s)", s.c_str()); 304 305 strm.EOL(); 306 } 307 308 if (GetOSKernelDescription (s)) 309 strm.Printf(" Kernel: %s\n", s.c_str()); 310 311 if (IsHost()) 312 { 313 strm.Printf(" Hostname: %s\n", GetHostname()); 314 } 315 else 316 { 317 const bool is_connected = IsConnected(); 318 if (is_connected) 319 strm.Printf(" Hostname: %s\n", GetHostname()); 320 strm.Printf(" Connected: %s\n", is_connected ? "yes" : "no"); 321 } 322 323 if (GetWorkingDirectory()) 324 { 325 strm.Printf("WorkingDir: %s\n", GetWorkingDirectory().GetCString()); 326 } 327 if (!IsConnected()) 328 return; 329 330 std::string specific_info(GetPlatformSpecificConnectionInformation()); 331 332 if (specific_info.empty() == false) 333 strm.Printf("Platform-specific connection: %s\n", specific_info.c_str()); 334 } 335 336 337 bool 338 Platform::GetOSVersion (uint32_t &major, 339 uint32_t &minor, 340 uint32_t &update) 341 { 342 bool success = m_major_os_version != UINT32_MAX; 343 if (IsHost()) 344 { 345 if (!success) 346 { 347 // We have a local host platform 348 success = Host::GetOSVersion (m_major_os_version, 349 m_minor_os_version, 350 m_update_os_version); 351 m_os_version_set_while_connected = success; 352 } 353 } 354 else 355 { 356 // We have a remote platform. We can only fetch the remote 357 // OS version if we are connected, and we don't want to do it 358 // more than once. 359 360 const bool is_connected = IsConnected(); 361 362 bool fetch = false; 363 if (success) 364 { 365 // We have valid OS version info, check to make sure it wasn't 366 // manually set prior to connecting. If it was manually set prior 367 // to connecting, then lets fetch the actual OS version info 368 // if we are now connected. 369 if (is_connected && !m_os_version_set_while_connected) 370 fetch = true; 371 } 372 else 373 { 374 // We don't have valid OS version info, fetch it if we are connected 375 fetch = is_connected; 376 } 377 378 if (fetch) 379 { 380 success = GetRemoteOSVersion (); 381 m_os_version_set_while_connected = success; 382 } 383 } 384 385 if (success) 386 { 387 major = m_major_os_version; 388 minor = m_minor_os_version; 389 update = m_update_os_version; 390 } 391 return success; 392 } 393 394 bool 395 Platform::GetOSBuildString (std::string &s) 396 { 397 if (IsHost()) 398 return Host::GetOSBuildString (s); 399 else 400 return GetRemoteOSBuildString (s); 401 } 402 403 bool 404 Platform::GetOSKernelDescription (std::string &s) 405 { 406 if (IsHost()) 407 return Host::GetOSKernelDescription (s); 408 else 409 return GetRemoteOSKernelDescription (s); 410 } 411 412 ConstString 413 Platform::GetWorkingDirectory () 414 { 415 if (IsHost()) 416 { 417 char cwd[PATH_MAX]; 418 if (getcwd(cwd, sizeof(cwd))) 419 return ConstString(cwd); 420 else 421 return ConstString(); 422 } 423 else 424 { 425 if (!m_working_dir) 426 m_working_dir = GetRemoteWorkingDirectory(); 427 return m_working_dir; 428 } 429 } 430 431 432 struct RecurseCopyBaton 433 { 434 const FileSpec& dst; 435 Platform *platform_ptr; 436 Error error; 437 }; 438 439 440 static FileSpec::EnumerateDirectoryResult 441 RecurseCopy_Callback (void *baton, 442 FileSpec::FileType file_type, 443 const FileSpec &src) 444 { 445 RecurseCopyBaton* rc_baton = (RecurseCopyBaton*)baton; 446 switch (file_type) 447 { 448 case FileSpec::eFileTypePipe: 449 case FileSpec::eFileTypeSocket: 450 // we have no way to copy pipes and sockets - ignore them and continue 451 return FileSpec::eEnumerateDirectoryResultNext; 452 break; 453 454 case FileSpec::eFileTypeDirectory: 455 { 456 // make the new directory and get in there 457 FileSpec dst_dir = rc_baton->dst; 458 if (!dst_dir.GetFilename()) 459 dst_dir.GetFilename() = src.GetLastPathComponent(); 460 std::string dst_dir_path (dst_dir.GetPath()); 461 Error error = rc_baton->platform_ptr->MakeDirectory(dst_dir_path.c_str(), lldb::eFilePermissionsDirectoryDefault); 462 if (error.Fail()) 463 { 464 rc_baton->error.SetErrorStringWithFormat("unable to setup directory %s on remote end", dst_dir_path.c_str()); 465 return FileSpec::eEnumerateDirectoryResultQuit; // got an error, bail out 466 } 467 468 // now recurse 469 std::string src_dir_path (src.GetPath()); 470 471 // Make a filespec that only fills in the directory of a FileSpec so 472 // when we enumerate we can quickly fill in the filename for dst copies 473 FileSpec recurse_dst; 474 recurse_dst.GetDirectory().SetCString(dst_dir.GetPath().c_str()); 475 RecurseCopyBaton rc_baton2 = { recurse_dst, rc_baton->platform_ptr, Error() }; 476 FileSpec::EnumerateDirectory(src_dir_path.c_str(), true, true, true, RecurseCopy_Callback, &rc_baton2); 477 if (rc_baton2.error.Fail()) 478 { 479 rc_baton->error.SetErrorString(rc_baton2.error.AsCString()); 480 return FileSpec::eEnumerateDirectoryResultQuit; // got an error, bail out 481 } 482 return FileSpec::eEnumerateDirectoryResultNext; 483 } 484 break; 485 486 case FileSpec::eFileTypeSymbolicLink: 487 { 488 // copy the file and keep going 489 FileSpec dst_file = rc_baton->dst; 490 if (!dst_file.GetFilename()) 491 dst_file.GetFilename() = src.GetFilename(); 492 493 char buf[PATH_MAX]; 494 495 rc_baton->error = Host::Readlink (src.GetPath().c_str(), buf, sizeof(buf)); 496 497 if (rc_baton->error.Fail()) 498 return FileSpec::eEnumerateDirectoryResultQuit; // got an error, bail out 499 500 rc_baton->error = rc_baton->platform_ptr->CreateSymlink(dst_file.GetPath().c_str(), buf); 501 502 if (rc_baton->error.Fail()) 503 return FileSpec::eEnumerateDirectoryResultQuit; // got an error, bail out 504 505 return FileSpec::eEnumerateDirectoryResultNext; 506 } 507 break; 508 case FileSpec::eFileTypeRegular: 509 { 510 // copy the file and keep going 511 FileSpec dst_file = rc_baton->dst; 512 if (!dst_file.GetFilename()) 513 dst_file.GetFilename() = src.GetFilename(); 514 Error err = rc_baton->platform_ptr->PutFile(src, dst_file); 515 if (err.Fail()) 516 { 517 rc_baton->error.SetErrorString(err.AsCString()); 518 return FileSpec::eEnumerateDirectoryResultQuit; // got an error, bail out 519 } 520 return FileSpec::eEnumerateDirectoryResultNext; 521 } 522 break; 523 524 case FileSpec::eFileTypeInvalid: 525 case FileSpec::eFileTypeOther: 526 case FileSpec::eFileTypeUnknown: 527 rc_baton->error.SetErrorStringWithFormat("invalid file detected during copy: %s", src.GetPath().c_str()); 528 return FileSpec::eEnumerateDirectoryResultQuit; // got an error, bail out 529 break; 530 } 531 } 532 533 Error 534 Platform::Install (const FileSpec& src, const FileSpec& dst) 535 { 536 Error error; 537 538 Log *log = GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM); 539 if (log) 540 log->Printf ("Platform::Install (src='%s', dst='%s')", src.GetPath().c_str(), dst.GetPath().c_str()); 541 FileSpec fixed_dst(dst); 542 543 if (!fixed_dst.GetFilename()) 544 fixed_dst.GetFilename() = src.GetFilename(); 545 546 ConstString working_dir = GetWorkingDirectory(); 547 548 if (dst) 549 { 550 if (dst.GetDirectory()) 551 { 552 const char first_dst_dir_char = dst.GetDirectory().GetCString()[0]; 553 if (first_dst_dir_char == '/' || first_dst_dir_char == '\\') 554 { 555 fixed_dst.GetDirectory() = dst.GetDirectory(); 556 } 557 // If the fixed destination file doesn't have a directory yet, 558 // then we must have a relative path. We will resolve this relative 559 // path against the platform's working directory 560 if (!fixed_dst.GetDirectory()) 561 { 562 FileSpec relative_spec; 563 std::string path; 564 if (working_dir) 565 { 566 relative_spec.SetFile(working_dir.GetCString(), false); 567 relative_spec.AppendPathComponent(dst.GetPath().c_str()); 568 fixed_dst.GetDirectory() = relative_spec.GetDirectory(); 569 } 570 else 571 { 572 error.SetErrorStringWithFormat("platform working directory must be valid for relative path '%s'", dst.GetPath().c_str()); 573 return error; 574 } 575 } 576 } 577 else 578 { 579 if (working_dir) 580 { 581 fixed_dst.GetDirectory() = working_dir; 582 } 583 else 584 { 585 error.SetErrorStringWithFormat("platform working directory must be valid for relative path '%s'", dst.GetPath().c_str()); 586 return error; 587 } 588 } 589 } 590 else 591 { 592 if (working_dir) 593 { 594 fixed_dst.GetDirectory() = working_dir; 595 } 596 else 597 { 598 error.SetErrorStringWithFormat("platform working directory must be valid when destination directory is empty"); 599 return error; 600 } 601 } 602 603 if (log) 604 log->Printf ("Platform::Install (src='%s', dst='%s') fixed_dst='%s'", src.GetPath().c_str(), dst.GetPath().c_str(), fixed_dst.GetPath().c_str()); 605 606 if (GetSupportsRSync()) 607 { 608 error = PutFile(src, dst); 609 } 610 else 611 { 612 switch (src.GetFileType()) 613 { 614 case FileSpec::eFileTypeDirectory: 615 { 616 if (GetFileExists (fixed_dst)) 617 Unlink (fixed_dst.GetPath().c_str()); 618 uint32_t permissions = src.GetPermissions(); 619 if (permissions == 0) 620 permissions = eFilePermissionsDirectoryDefault; 621 std::string dst_dir_path(fixed_dst.GetPath()); 622 error = MakeDirectory(dst_dir_path.c_str(), permissions); 623 if (error.Success()) 624 { 625 // Make a filespec that only fills in the directory of a FileSpec so 626 // when we enumerate we can quickly fill in the filename for dst copies 627 FileSpec recurse_dst; 628 recurse_dst.GetDirectory().SetCString(dst_dir_path.c_str()); 629 std::string src_dir_path (src.GetPath()); 630 RecurseCopyBaton baton = { recurse_dst, this, Error() }; 631 FileSpec::EnumerateDirectory(src_dir_path.c_str(), true, true, true, RecurseCopy_Callback, &baton); 632 return baton.error; 633 } 634 } 635 break; 636 637 case FileSpec::eFileTypeRegular: 638 if (GetFileExists (fixed_dst)) 639 Unlink (fixed_dst.GetPath().c_str()); 640 error = PutFile(src, fixed_dst); 641 break; 642 643 case FileSpec::eFileTypeSymbolicLink: 644 { 645 if (GetFileExists (fixed_dst)) 646 Unlink (fixed_dst.GetPath().c_str()); 647 char buf[PATH_MAX]; 648 error = Host::Readlink(src.GetPath().c_str(), buf, sizeof(buf)); 649 if (error.Success()) 650 error = CreateSymlink(dst.GetPath().c_str(), buf); 651 } 652 break; 653 case FileSpec::eFileTypePipe: 654 error.SetErrorString("platform install doesn't handle pipes"); 655 break; 656 case FileSpec::eFileTypeSocket: 657 error.SetErrorString("platform install doesn't handle sockets"); 658 break; 659 case FileSpec::eFileTypeInvalid: 660 case FileSpec::eFileTypeUnknown: 661 case FileSpec::eFileTypeOther: 662 error.SetErrorString("platform install doesn't handle non file or directory items"); 663 break; 664 } 665 } 666 return error; 667 } 668 669 bool 670 Platform::SetWorkingDirectory (const ConstString &path) 671 { 672 if (IsHost()) 673 { 674 if (path) 675 { 676 if (chdir(path.GetCString()) == 0) 677 return true; 678 } 679 return false; 680 } 681 else 682 { 683 return SetRemoteWorkingDirectory(path); 684 } 685 } 686 687 Error 688 Platform::MakeDirectory (const char *path, uint32_t permissions) 689 { 690 if (IsHost()) 691 return Host::MakeDirectory (path, permissions); 692 else 693 { 694 Error error; 695 error.SetErrorStringWithFormat("remote platform %s doesn't support %s", GetPluginName().GetCString(), __PRETTY_FUNCTION__); 696 return error; 697 } 698 } 699 700 Error 701 Platform::GetFilePermissions (const char *path, uint32_t &file_permissions) 702 { 703 if (IsHost()) 704 return Host::GetFilePermissions(path, file_permissions); 705 else 706 { 707 Error error; 708 error.SetErrorStringWithFormat("remote platform %s doesn't support %s", GetPluginName().GetCString(), __PRETTY_FUNCTION__); 709 return error; 710 } 711 } 712 713 Error 714 Platform::SetFilePermissions (const char *path, uint32_t file_permissions) 715 { 716 if (IsHost()) 717 return Host::SetFilePermissions(path, file_permissions); 718 else 719 { 720 Error error; 721 error.SetErrorStringWithFormat("remote platform %s doesn't support %s", GetPluginName().GetCString(), __PRETTY_FUNCTION__); 722 return error; 723 } 724 } 725 726 ConstString 727 Platform::GetName () 728 { 729 return GetPluginName(); 730 } 731 732 const char * 733 Platform::GetHostname () 734 { 735 if (IsHost()) 736 return "localhost"; 737 738 if (m_name.empty()) 739 return NULL; 740 return m_name.c_str(); 741 } 742 743 const char * 744 Platform::GetUserName (uint32_t uid) 745 { 746 const char *user_name = GetCachedUserName(uid); 747 if (user_name) 748 return user_name; 749 if (IsHost()) 750 { 751 std::string name; 752 if (Host::GetUserName(uid, name)) 753 return SetCachedUserName (uid, name.c_str(), name.size()); 754 } 755 return NULL; 756 } 757 758 const char * 759 Platform::GetGroupName (uint32_t gid) 760 { 761 const char *group_name = GetCachedGroupName(gid); 762 if (group_name) 763 return group_name; 764 if (IsHost()) 765 { 766 std::string name; 767 if (Host::GetGroupName(gid, name)) 768 return SetCachedGroupName (gid, name.c_str(), name.size()); 769 } 770 return NULL; 771 } 772 773 bool 774 Platform::SetOSVersion (uint32_t major, 775 uint32_t minor, 776 uint32_t update) 777 { 778 if (IsHost()) 779 { 780 // We don't need anyone setting the OS version for the host platform, 781 // we should be able to figure it out by calling Host::GetOSVersion(...). 782 return false; 783 } 784 else 785 { 786 // We have a remote platform, allow setting the target OS version if 787 // we aren't connected, since if we are connected, we should be able to 788 // request the remote OS version from the connected platform. 789 if (IsConnected()) 790 return false; 791 else 792 { 793 // We aren't connected and we might want to set the OS version 794 // ahead of time before we connect so we can peruse files and 795 // use a local SDK or PDK cache of support files to disassemble 796 // or do other things. 797 m_major_os_version = major; 798 m_minor_os_version = minor; 799 m_update_os_version = update; 800 return true; 801 } 802 } 803 return false; 804 } 805 806 807 Error 808 Platform::ResolveExecutable (const FileSpec &exe_file, 809 const ArchSpec &exe_arch, 810 lldb::ModuleSP &exe_module_sp, 811 const FileSpecList *module_search_paths_ptr) 812 { 813 Error error; 814 if (exe_file.Exists()) 815 { 816 ModuleSpec module_spec (exe_file, exe_arch); 817 if (module_spec.GetArchitecture().IsValid()) 818 { 819 error = ModuleList::GetSharedModule (module_spec, 820 exe_module_sp, 821 module_search_paths_ptr, 822 NULL, 823 NULL); 824 } 825 else 826 { 827 // No valid architecture was specified, ask the platform for 828 // the architectures that we should be using (in the correct order) 829 // and see if we can find a match that way 830 for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, module_spec.GetArchitecture()); ++idx) 831 { 832 error = ModuleList::GetSharedModule (module_spec, 833 exe_module_sp, 834 module_search_paths_ptr, 835 NULL, 836 NULL); 837 // Did we find an executable using one of the 838 if (error.Success() && exe_module_sp) 839 break; 840 } 841 } 842 } 843 else 844 { 845 error.SetErrorStringWithFormat ("'%s' does not exist", 846 exe_file.GetPath().c_str()); 847 } 848 return error; 849 } 850 851 Error 852 Platform::ResolveSymbolFile (Target &target, 853 const ModuleSpec &sym_spec, 854 FileSpec &sym_file) 855 { 856 Error error; 857 if (sym_spec.GetSymbolFileSpec().Exists()) 858 sym_file = sym_spec.GetSymbolFileSpec(); 859 else 860 error.SetErrorString("unable to resolve symbol file"); 861 return error; 862 863 } 864 865 866 867 bool 868 Platform::ResolveRemotePath (const FileSpec &platform_path, 869 FileSpec &resolved_platform_path) 870 { 871 resolved_platform_path = platform_path; 872 return resolved_platform_path.ResolvePath(); 873 } 874 875 876 const ArchSpec & 877 Platform::GetSystemArchitecture() 878 { 879 if (IsHost()) 880 { 881 if (!m_system_arch.IsValid()) 882 { 883 // We have a local host platform 884 m_system_arch = Host::GetArchitecture(); 885 m_system_arch_set_while_connected = m_system_arch.IsValid(); 886 } 887 } 888 else 889 { 890 // We have a remote platform. We can only fetch the remote 891 // system architecture if we are connected, and we don't want to do it 892 // more than once. 893 894 const bool is_connected = IsConnected(); 895 896 bool fetch = false; 897 if (m_system_arch.IsValid()) 898 { 899 // We have valid OS version info, check to make sure it wasn't 900 // manually set prior to connecting. If it was manually set prior 901 // to connecting, then lets fetch the actual OS version info 902 // if we are now connected. 903 if (is_connected && !m_system_arch_set_while_connected) 904 fetch = true; 905 } 906 else 907 { 908 // We don't have valid OS version info, fetch it if we are connected 909 fetch = is_connected; 910 } 911 912 if (fetch) 913 { 914 m_system_arch = GetRemoteSystemArchitecture (); 915 m_system_arch_set_while_connected = m_system_arch.IsValid(); 916 } 917 } 918 return m_system_arch; 919 } 920 921 922 Error 923 Platform::ConnectRemote (Args& args) 924 { 925 Error error; 926 if (IsHost()) 927 error.SetErrorStringWithFormat ("The currently selected platform (%s) is the host platform and is always connected.", GetPluginName().GetCString()); 928 else 929 error.SetErrorStringWithFormat ("Platform::ConnectRemote() is not supported by %s", GetPluginName().GetCString()); 930 return error; 931 } 932 933 Error 934 Platform::DisconnectRemote () 935 { 936 Error error; 937 if (IsHost()) 938 error.SetErrorStringWithFormat ("The currently selected platform (%s) is the host platform and is always connected.", GetPluginName().GetCString()); 939 else 940 error.SetErrorStringWithFormat ("Platform::DisconnectRemote() is not supported by %s", GetPluginName().GetCString()); 941 return error; 942 } 943 944 bool 945 Platform::GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &process_info) 946 { 947 // Take care of the host case so that each subclass can just 948 // call this function to get the host functionality. 949 if (IsHost()) 950 return Host::GetProcessInfo (pid, process_info); 951 return false; 952 } 953 954 uint32_t 955 Platform::FindProcesses (const ProcessInstanceInfoMatch &match_info, 956 ProcessInstanceInfoList &process_infos) 957 { 958 // Take care of the host case so that each subclass can just 959 // call this function to get the host functionality. 960 uint32_t match_count = 0; 961 if (IsHost()) 962 match_count = Host::FindProcesses (match_info, process_infos); 963 return match_count; 964 } 965 966 967 Error 968 Platform::LaunchProcess (ProcessLaunchInfo &launch_info) 969 { 970 Error error; 971 // Take care of the host case so that each subclass can just 972 // call this function to get the host functionality. 973 if (IsHost()) 974 { 975 if (::getenv ("LLDB_LAUNCH_FLAG_LAUNCH_IN_TTY")) 976 launch_info.GetFlags().Set (eLaunchFlagLaunchInTTY); 977 978 if (launch_info.GetFlags().Test (eLaunchFlagLaunchInShell)) 979 { 980 const bool is_localhost = true; 981 const bool will_debug = launch_info.GetFlags().Test(eLaunchFlagDebug); 982 const bool first_arg_is_full_shell_command = false; 983 uint32_t num_resumes = GetResumeCountForLaunchInfo (launch_info); 984 if (!launch_info.ConvertArgumentsForLaunchingInShell (error, 985 is_localhost, 986 will_debug, 987 first_arg_is_full_shell_command, 988 num_resumes)) 989 return error; 990 } 991 992 error = Host::LaunchProcess (launch_info); 993 } 994 else 995 error.SetErrorString ("base lldb_private::Platform class can't launch remote processes"); 996 return error; 997 } 998 999 lldb::ProcessSP 1000 Platform::DebugProcess (ProcessLaunchInfo &launch_info, 1001 Debugger &debugger, 1002 Target *target, // Can be NULL, if NULL create a new target, else use existing one 1003 Listener &listener, 1004 Error &error) 1005 { 1006 ProcessSP process_sp; 1007 // Make sure we stop at the entry point 1008 launch_info.GetFlags ().Set (eLaunchFlagDebug); 1009 // We always launch the process we are going to debug in a separate process 1010 // group, since then we can handle ^C interrupts ourselves w/o having to worry 1011 // about the target getting them as well. 1012 launch_info.SetLaunchInSeparateProcessGroup(true); 1013 1014 error = LaunchProcess (launch_info); 1015 if (error.Success()) 1016 { 1017 if (launch_info.GetProcessID() != LLDB_INVALID_PROCESS_ID) 1018 { 1019 ProcessAttachInfo attach_info (launch_info); 1020 process_sp = Attach (attach_info, debugger, target, listener, error); 1021 if (process_sp) 1022 { 1023 // Since we attached to the process, it will think it needs to detach 1024 // if the process object just goes away without an explicit call to 1025 // Process::Kill() or Process::Detach(), so let it know to kill the 1026 // process if this happens. 1027 process_sp->SetShouldDetach (false); 1028 1029 // If we didn't have any file actions, the pseudo terminal might 1030 // have been used where the slave side was given as the file to 1031 // open for stdin/out/err after we have already opened the master 1032 // so we can read/write stdin/out/err. 1033 int pty_fd = launch_info.GetPTY().ReleaseMasterFileDescriptor(); 1034 if (pty_fd != lldb_utility::PseudoTerminal::invalid_fd) 1035 { 1036 process_sp->SetSTDIOFileDescriptor(pty_fd); 1037 } 1038 } 1039 } 1040 } 1041 return process_sp; 1042 } 1043 1044 1045 lldb::PlatformSP 1046 Platform::GetPlatformForArchitecture (const ArchSpec &arch, ArchSpec *platform_arch_ptr) 1047 { 1048 lldb::PlatformSP platform_sp; 1049 Error error; 1050 if (arch.IsValid()) 1051 platform_sp = Platform::Create (arch, platform_arch_ptr, error); 1052 return platform_sp; 1053 } 1054 1055 1056 //------------------------------------------------------------------ 1057 /// Lets a platform answer if it is compatible with a given 1058 /// architecture and the target triple contained within. 1059 //------------------------------------------------------------------ 1060 bool 1061 Platform::IsCompatibleArchitecture (const ArchSpec &arch, bool exact_arch_match, ArchSpec *compatible_arch_ptr) 1062 { 1063 // If the architecture is invalid, we must answer true... 1064 if (arch.IsValid()) 1065 { 1066 ArchSpec platform_arch; 1067 // Try for an exact architecture match first. 1068 if (exact_arch_match) 1069 { 1070 for (uint32_t arch_idx=0; GetSupportedArchitectureAtIndex (arch_idx, platform_arch); ++arch_idx) 1071 { 1072 if (arch.IsExactMatch(platform_arch)) 1073 { 1074 if (compatible_arch_ptr) 1075 *compatible_arch_ptr = platform_arch; 1076 return true; 1077 } 1078 } 1079 } 1080 else 1081 { 1082 for (uint32_t arch_idx=0; GetSupportedArchitectureAtIndex (arch_idx, platform_arch); ++arch_idx) 1083 { 1084 if (arch.IsCompatibleMatch(platform_arch)) 1085 { 1086 if (compatible_arch_ptr) 1087 *compatible_arch_ptr = platform_arch; 1088 return true; 1089 } 1090 } 1091 } 1092 } 1093 if (compatible_arch_ptr) 1094 compatible_arch_ptr->Clear(); 1095 return false; 1096 } 1097 1098 Error 1099 Platform::PutFile (const FileSpec& source, 1100 const FileSpec& destination, 1101 uint32_t uid, 1102 uint32_t gid) 1103 { 1104 Error error("unimplemented"); 1105 return error; 1106 } 1107 1108 Error 1109 Platform::GetFile (const FileSpec& source, 1110 const FileSpec& destination) 1111 { 1112 Error error("unimplemented"); 1113 return error; 1114 } 1115 1116 Error 1117 Platform::CreateSymlink (const char *src, // The name of the link is in src 1118 const char *dst)// The symlink points to dst 1119 { 1120 Error error("unimplemented"); 1121 return error; 1122 } 1123 1124 bool 1125 Platform::GetFileExists (const lldb_private::FileSpec& file_spec) 1126 { 1127 return false; 1128 } 1129 1130 Error 1131 Platform::Unlink (const char *path) 1132 { 1133 Error error("unimplemented"); 1134 return error; 1135 } 1136 1137 1138 1139 lldb_private::Error 1140 Platform::RunShellCommand (const char *command, // Shouldn't be NULL 1141 const char *working_dir, // Pass NULL to use the current working directory 1142 int *status_ptr, // Pass NULL if you don't want the process exit status 1143 int *signo_ptr, // Pass NULL if you don't want the signal that caused the process to exit 1144 std::string *command_output, // Pass NULL if you don't want the command output 1145 uint32_t timeout_sec) // Timeout in seconds to wait for shell program to finish 1146 { 1147 if (IsHost()) 1148 return Host::RunShellCommand (command, working_dir, status_ptr, signo_ptr, command_output, timeout_sec); 1149 else 1150 return Error("unimplemented"); 1151 } 1152 1153 1154 bool 1155 Platform::CalculateMD5 (const FileSpec& file_spec, 1156 uint64_t &low, 1157 uint64_t &high) 1158 { 1159 if (IsHost()) 1160 return Host::CalculateMD5(file_spec, low, high); 1161 else 1162 return false; 1163 } 1164 1165 void 1166 Platform::SetLocalCacheDirectory (const char* local) 1167 { 1168 m_local_cache_directory.assign(local); 1169 } 1170 1171 const char* 1172 Platform::GetLocalCacheDirectory () 1173 { 1174 return m_local_cache_directory.c_str(); 1175 } 1176 1177 static OptionDefinition 1178 g_rsync_option_table[] = 1179 { 1180 { LLDB_OPT_SET_ALL, false, "rsync" , 'r', OptionParser::eNoArgument, NULL, 0, eArgTypeNone , "Enable rsync." }, 1181 { LLDB_OPT_SET_ALL, false, "rsync-opts" , 'R', OptionParser::eRequiredArgument, NULL, 0, eArgTypeCommandName , "Platform-specific options required for rsync to work." }, 1182 { LLDB_OPT_SET_ALL, false, "rsync-prefix" , 'P', OptionParser::eRequiredArgument, NULL, 0, eArgTypeCommandName , "Platform-specific rsync prefix put before the remote path." }, 1183 { LLDB_OPT_SET_ALL, false, "ignore-remote-hostname" , 'i', OptionParser::eNoArgument, NULL, 0, eArgTypeNone , "Do not automatically fill in the remote hostname when composing the rsync command." }, 1184 }; 1185 1186 static OptionDefinition 1187 g_ssh_option_table[] = 1188 { 1189 { LLDB_OPT_SET_ALL, false, "ssh" , 's', OptionParser::eNoArgument, NULL, 0, eArgTypeNone , "Enable SSH." }, 1190 { LLDB_OPT_SET_ALL, false, "ssh-opts" , 'S', OptionParser::eRequiredArgument, NULL, 0, eArgTypeCommandName , "Platform-specific options required for SSH to work." }, 1191 }; 1192 1193 static OptionDefinition 1194 g_caching_option_table[] = 1195 { 1196 { LLDB_OPT_SET_ALL, false, "local-cache-dir" , 'c', OptionParser::eRequiredArgument, NULL, 0, eArgTypePath , "Path in which to store local copies of files." }, 1197 }; 1198 1199 OptionGroupPlatformRSync::OptionGroupPlatformRSync () 1200 { 1201 } 1202 1203 OptionGroupPlatformRSync::~OptionGroupPlatformRSync () 1204 { 1205 } 1206 1207 const lldb_private::OptionDefinition* 1208 OptionGroupPlatformRSync::GetDefinitions () 1209 { 1210 return g_rsync_option_table; 1211 } 1212 1213 void 1214 OptionGroupPlatformRSync::OptionParsingStarting (CommandInterpreter &interpreter) 1215 { 1216 m_rsync = false; 1217 m_rsync_opts.clear(); 1218 m_rsync_prefix.clear(); 1219 m_ignores_remote_hostname = false; 1220 } 1221 1222 lldb_private::Error 1223 OptionGroupPlatformRSync::SetOptionValue (CommandInterpreter &interpreter, 1224 uint32_t option_idx, 1225 const char *option_arg) 1226 { 1227 Error error; 1228 char short_option = (char) GetDefinitions()[option_idx].short_option; 1229 switch (short_option) 1230 { 1231 case 'r': 1232 m_rsync = true; 1233 break; 1234 1235 case 'R': 1236 m_rsync_opts.assign(option_arg); 1237 break; 1238 1239 case 'P': 1240 m_rsync_prefix.assign(option_arg); 1241 break; 1242 1243 case 'i': 1244 m_ignores_remote_hostname = true; 1245 break; 1246 1247 default: 1248 error.SetErrorStringWithFormat ("unrecognized option '%c'", short_option); 1249 break; 1250 } 1251 1252 return error; 1253 } 1254 1255 uint32_t 1256 OptionGroupPlatformRSync::GetNumDefinitions () 1257 { 1258 return llvm::array_lengthof(g_rsync_option_table); 1259 } 1260 1261 lldb::BreakpointSP 1262 Platform::SetThreadCreationBreakpoint (lldb_private::Target &target) 1263 { 1264 return lldb::BreakpointSP(); 1265 } 1266 1267 OptionGroupPlatformSSH::OptionGroupPlatformSSH () 1268 { 1269 } 1270 1271 OptionGroupPlatformSSH::~OptionGroupPlatformSSH () 1272 { 1273 } 1274 1275 const lldb_private::OptionDefinition* 1276 OptionGroupPlatformSSH::GetDefinitions () 1277 { 1278 return g_ssh_option_table; 1279 } 1280 1281 void 1282 OptionGroupPlatformSSH::OptionParsingStarting (CommandInterpreter &interpreter) 1283 { 1284 m_ssh = false; 1285 m_ssh_opts.clear(); 1286 } 1287 1288 lldb_private::Error 1289 OptionGroupPlatformSSH::SetOptionValue (CommandInterpreter &interpreter, 1290 uint32_t option_idx, 1291 const char *option_arg) 1292 { 1293 Error error; 1294 char short_option = (char) GetDefinitions()[option_idx].short_option; 1295 switch (short_option) 1296 { 1297 case 's': 1298 m_ssh = true; 1299 break; 1300 1301 case 'S': 1302 m_ssh_opts.assign(option_arg); 1303 break; 1304 1305 default: 1306 error.SetErrorStringWithFormat ("unrecognized option '%c'", short_option); 1307 break; 1308 } 1309 1310 return error; 1311 } 1312 1313 uint32_t 1314 OptionGroupPlatformSSH::GetNumDefinitions () 1315 { 1316 return llvm::array_lengthof(g_ssh_option_table); 1317 } 1318 1319 OptionGroupPlatformCaching::OptionGroupPlatformCaching () 1320 { 1321 } 1322 1323 OptionGroupPlatformCaching::~OptionGroupPlatformCaching () 1324 { 1325 } 1326 1327 const lldb_private::OptionDefinition* 1328 OptionGroupPlatformCaching::GetDefinitions () 1329 { 1330 return g_caching_option_table; 1331 } 1332 1333 void 1334 OptionGroupPlatformCaching::OptionParsingStarting (CommandInterpreter &interpreter) 1335 { 1336 m_cache_dir.clear(); 1337 } 1338 1339 lldb_private::Error 1340 OptionGroupPlatformCaching::SetOptionValue (CommandInterpreter &interpreter, 1341 uint32_t option_idx, 1342 const char *option_arg) 1343 { 1344 Error error; 1345 char short_option = (char) GetDefinitions()[option_idx].short_option; 1346 switch (short_option) 1347 { 1348 case 'c': 1349 m_cache_dir.assign(option_arg); 1350 break; 1351 1352 default: 1353 error.SetErrorStringWithFormat ("unrecognized option '%c'", short_option); 1354 break; 1355 } 1356 1357 return error; 1358 } 1359 1360 uint32_t 1361 OptionGroupPlatformCaching::GetNumDefinitions () 1362 { 1363 return llvm::array_lengthof(g_caching_option_table); 1364 } 1365 1366 size_t 1367 Platform::GetEnvironment (StringList &environment) 1368 { 1369 environment.Clear(); 1370 return false; 1371 } 1372