1 //===-- PlatformPOSIX.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 "PlatformPOSIX.h" 11 12 // C Includes 13 // C++ Includes 14 // Other libraries and framework includes 15 // Project includes 16 17 #include "lldb/Core/Debugger.h" 18 #include "lldb/Core/Module.h" 19 #include "lldb/Core/ModuleSpec.h" 20 #include "lldb/Core/ValueObject.h" 21 #include "lldb/Expression/DiagnosticManager.h" 22 #include "lldb/Expression/FunctionCaller.h" 23 #include "lldb/Expression/UserExpression.h" 24 #include "lldb/Expression/UtilityFunction.h" 25 #include "lldb/Host/File.h" 26 #include "lldb/Host/FileCache.h" 27 #include "lldb/Host/FileSystem.h" 28 #include "lldb/Host/Host.h" 29 #include "lldb/Host/HostInfo.h" 30 #include "lldb/Symbol/ClangASTContext.h" 31 #include "lldb/Target/DynamicLoader.h" 32 #include "lldb/Target/ExecutionContext.h" 33 #include "lldb/Target/Process.h" 34 #include "lldb/Target/ProcessLaunchInfo.h" 35 #include "lldb/Target/Thread.h" 36 #include "lldb/Utility/CleanUp.h" 37 #include "lldb/Utility/DataBufferHeap.h" 38 #include "lldb/Utility/FileSpec.h" 39 #include "lldb/Utility/Log.h" 40 #include "lldb/Utility/StreamString.h" 41 42 using namespace lldb; 43 using namespace lldb_private; 44 45 //------------------------------------------------------------------ 46 /// Default Constructor 47 //------------------------------------------------------------------ 48 PlatformPOSIX::PlatformPOSIX(bool is_host) 49 : Platform(is_host), // This is the local host platform 50 m_option_group_platform_rsync(new OptionGroupPlatformRSync()), 51 m_option_group_platform_ssh(new OptionGroupPlatformSSH()), 52 m_option_group_platform_caching(new OptionGroupPlatformCaching()), 53 m_remote_platform_sp() {} 54 55 //------------------------------------------------------------------ 56 /// Destructor. 57 /// 58 /// The destructor is virtual since this class is designed to be 59 /// inherited from by the plug-in instance. 60 //------------------------------------------------------------------ 61 PlatformPOSIX::~PlatformPOSIX() {} 62 63 bool PlatformPOSIX::GetModuleSpec(const FileSpec &module_file_spec, 64 const ArchSpec &arch, 65 ModuleSpec &module_spec) { 66 if (m_remote_platform_sp) 67 return m_remote_platform_sp->GetModuleSpec(module_file_spec, arch, 68 module_spec); 69 70 return Platform::GetModuleSpec(module_file_spec, arch, module_spec); 71 } 72 73 lldb_private::OptionGroupOptions *PlatformPOSIX::GetConnectionOptions( 74 lldb_private::CommandInterpreter &interpreter) { 75 auto iter = m_options.find(&interpreter), end = m_options.end(); 76 if (iter == end) { 77 std::unique_ptr<lldb_private::OptionGroupOptions> options( 78 new OptionGroupOptions()); 79 options->Append(m_option_group_platform_rsync.get()); 80 options->Append(m_option_group_platform_ssh.get()); 81 options->Append(m_option_group_platform_caching.get()); 82 m_options[&interpreter] = std::move(options); 83 } 84 85 return m_options.at(&interpreter).get(); 86 } 87 88 bool PlatformPOSIX::IsConnected() const { 89 if (IsHost()) 90 return true; 91 else if (m_remote_platform_sp) 92 return m_remote_platform_sp->IsConnected(); 93 return false; 94 } 95 96 lldb_private::Status PlatformPOSIX::RunShellCommand( 97 const char *command, // Shouldn't be NULL 98 const FileSpec & 99 working_dir, // Pass empty FileSpec to use the current working directory 100 int *status_ptr, // Pass NULL if you don't want the process exit status 101 int *signo_ptr, // Pass NULL if you don't want the signal that caused the 102 // process to exit 103 std::string 104 *command_output, // Pass NULL if you don't want the command output 105 const Timeout<std::micro> &timeout) { 106 if (IsHost()) 107 return Host::RunShellCommand(command, working_dir, status_ptr, signo_ptr, 108 command_output, timeout); 109 else { 110 if (m_remote_platform_sp) 111 return m_remote_platform_sp->RunShellCommand( 112 command, working_dir, status_ptr, signo_ptr, command_output, timeout); 113 else 114 return Status("unable to run a remote command without a platform"); 115 } 116 } 117 118 Status 119 PlatformPOSIX::ResolveExecutable(const ModuleSpec &module_spec, 120 lldb::ModuleSP &exe_module_sp, 121 const FileSpecList *module_search_paths_ptr) { 122 Status error; 123 // Nothing special to do here, just use the actual file and architecture 124 125 char exe_path[PATH_MAX]; 126 ModuleSpec resolved_module_spec(module_spec); 127 128 if (IsHost()) { 129 // If we have "ls" as the exe_file, resolve the executable location based 130 // on the current path variables 131 if (!resolved_module_spec.GetFileSpec().Exists()) { 132 resolved_module_spec.GetFileSpec().GetPath(exe_path, sizeof(exe_path)); 133 resolved_module_spec.GetFileSpec().SetFile(exe_path, true); 134 } 135 136 if (!resolved_module_spec.GetFileSpec().Exists()) 137 resolved_module_spec.GetFileSpec().ResolveExecutableLocation(); 138 139 // Resolve any executable within a bundle on MacOSX 140 Host::ResolveExecutableInBundle(resolved_module_spec.GetFileSpec()); 141 142 if (resolved_module_spec.GetFileSpec().Exists()) 143 error.Clear(); 144 else { 145 const uint32_t permissions = 146 resolved_module_spec.GetFileSpec().GetPermissions(); 147 if (permissions && (permissions & eFilePermissionsEveryoneR) == 0) 148 error.SetErrorStringWithFormat( 149 "executable '%s' is not readable", 150 resolved_module_spec.GetFileSpec().GetPath().c_str()); 151 else 152 error.SetErrorStringWithFormat( 153 "unable to find executable for '%s'", 154 resolved_module_spec.GetFileSpec().GetPath().c_str()); 155 } 156 } else { 157 if (m_remote_platform_sp) { 158 error = 159 GetCachedExecutable(resolved_module_spec, exe_module_sp, 160 module_search_paths_ptr, *m_remote_platform_sp); 161 } else { 162 // We may connect to a process and use the provided executable (Don't use 163 // local $PATH). 164 165 // Resolve any executable within a bundle on MacOSX 166 Host::ResolveExecutableInBundle(resolved_module_spec.GetFileSpec()); 167 168 if (resolved_module_spec.GetFileSpec().Exists()) 169 error.Clear(); 170 else 171 error.SetErrorStringWithFormat("the platform is not currently " 172 "connected, and '%s' doesn't exist in " 173 "the system root.", 174 exe_path); 175 } 176 } 177 178 if (error.Success()) { 179 if (resolved_module_spec.GetArchitecture().IsValid()) { 180 error = ModuleList::GetSharedModule(resolved_module_spec, exe_module_sp, 181 module_search_paths_ptr, nullptr, nullptr); 182 if (error.Fail()) { 183 // If we failed, it may be because the vendor and os aren't known. If 184 // that is the case, try setting them to the host architecture and give 185 // it another try. 186 llvm::Triple &module_triple = 187 resolved_module_spec.GetArchitecture().GetTriple(); 188 bool is_vendor_specified = 189 (module_triple.getVendor() != llvm::Triple::UnknownVendor); 190 bool is_os_specified = 191 (module_triple.getOS() != llvm::Triple::UnknownOS); 192 if (!is_vendor_specified || !is_os_specified) { 193 const llvm::Triple &host_triple = 194 HostInfo::GetArchitecture(HostInfo::eArchKindDefault).GetTriple(); 195 196 if (!is_vendor_specified) 197 module_triple.setVendorName(host_triple.getVendorName()); 198 if (!is_os_specified) 199 module_triple.setOSName(host_triple.getOSName()); 200 201 error = ModuleList::GetSharedModule(resolved_module_spec, 202 exe_module_sp, module_search_paths_ptr, nullptr, nullptr); 203 } 204 } 205 206 // TODO find out why exe_module_sp might be NULL 207 if (error.Fail() || !exe_module_sp || !exe_module_sp->GetObjectFile()) { 208 exe_module_sp.reset(); 209 error.SetErrorStringWithFormat( 210 "'%s' doesn't contain the architecture %s", 211 resolved_module_spec.GetFileSpec().GetPath().c_str(), 212 resolved_module_spec.GetArchitecture().GetArchitectureName()); 213 } 214 } else { 215 // No valid architecture was specified, ask the platform for the 216 // architectures that we should be using (in the correct order) and see 217 // if we can find a match that way 218 StreamString arch_names; 219 for (uint32_t idx = 0; GetSupportedArchitectureAtIndex( 220 idx, resolved_module_spec.GetArchitecture()); 221 ++idx) { 222 error = ModuleList::GetSharedModule(resolved_module_spec, exe_module_sp, 223 module_search_paths_ptr, nullptr, nullptr); 224 // Did we find an executable using one of the 225 if (error.Success()) { 226 if (exe_module_sp && exe_module_sp->GetObjectFile()) 227 break; 228 else 229 error.SetErrorToGenericError(); 230 } 231 232 if (idx > 0) 233 arch_names.PutCString(", "); 234 arch_names.PutCString( 235 resolved_module_spec.GetArchitecture().GetArchitectureName()); 236 } 237 238 if (error.Fail() || !exe_module_sp) { 239 if (resolved_module_spec.GetFileSpec().Readable()) { 240 error.SetErrorStringWithFormat( 241 "'%s' doesn't contain any '%s' platform architectures: %s", 242 resolved_module_spec.GetFileSpec().GetPath().c_str(), 243 GetPluginName().GetCString(), arch_names.GetData()); 244 } else { 245 error.SetErrorStringWithFormat( 246 "'%s' is not readable", 247 resolved_module_spec.GetFileSpec().GetPath().c_str()); 248 } 249 } 250 } 251 } 252 253 return error; 254 } 255 256 Status PlatformPOSIX::GetFileWithUUID(const FileSpec &platform_file, 257 const UUID *uuid_ptr, 258 FileSpec &local_file) { 259 if (IsRemote() && m_remote_platform_sp) 260 return m_remote_platform_sp->GetFileWithUUID(platform_file, uuid_ptr, 261 local_file); 262 263 // Default to the local case 264 local_file = platform_file; 265 return Status(); 266 } 267 268 bool PlatformPOSIX::GetProcessInfo(lldb::pid_t pid, 269 ProcessInstanceInfo &process_info) { 270 if (IsHost()) 271 return Platform::GetProcessInfo(pid, process_info); 272 if (m_remote_platform_sp) 273 return m_remote_platform_sp->GetProcessInfo(pid, process_info); 274 return false; 275 } 276 277 uint32_t 278 PlatformPOSIX::FindProcesses(const ProcessInstanceInfoMatch &match_info, 279 ProcessInstanceInfoList &process_infos) { 280 if (IsHost()) 281 return Platform::FindProcesses(match_info, process_infos); 282 if (m_remote_platform_sp) 283 return 284 m_remote_platform_sp->FindProcesses(match_info, process_infos); 285 return 0; 286 } 287 288 Status PlatformPOSIX::MakeDirectory(const FileSpec &file_spec, 289 uint32_t file_permissions) { 290 if (m_remote_platform_sp) 291 return m_remote_platform_sp->MakeDirectory(file_spec, file_permissions); 292 else 293 return Platform::MakeDirectory(file_spec, file_permissions); 294 } 295 296 Status PlatformPOSIX::GetFilePermissions(const FileSpec &file_spec, 297 uint32_t &file_permissions) { 298 if (m_remote_platform_sp) 299 return m_remote_platform_sp->GetFilePermissions(file_spec, 300 file_permissions); 301 else 302 return Platform::GetFilePermissions(file_spec, file_permissions); 303 } 304 305 Status PlatformPOSIX::SetFilePermissions(const FileSpec &file_spec, 306 uint32_t file_permissions) { 307 if (m_remote_platform_sp) 308 return m_remote_platform_sp->SetFilePermissions(file_spec, 309 file_permissions); 310 else 311 return Platform::SetFilePermissions(file_spec, file_permissions); 312 } 313 314 lldb::user_id_t PlatformPOSIX::OpenFile(const FileSpec &file_spec, 315 uint32_t flags, uint32_t mode, 316 Status &error) { 317 if (IsHost()) 318 return FileCache::GetInstance().OpenFile(file_spec, flags, mode, error); 319 else if (m_remote_platform_sp) 320 return m_remote_platform_sp->OpenFile(file_spec, flags, mode, error); 321 else 322 return Platform::OpenFile(file_spec, flags, mode, error); 323 } 324 325 bool PlatformPOSIX::CloseFile(lldb::user_id_t fd, Status &error) { 326 if (IsHost()) 327 return FileCache::GetInstance().CloseFile(fd, error); 328 else if (m_remote_platform_sp) 329 return m_remote_platform_sp->CloseFile(fd, error); 330 else 331 return Platform::CloseFile(fd, error); 332 } 333 334 uint64_t PlatformPOSIX::ReadFile(lldb::user_id_t fd, uint64_t offset, void *dst, 335 uint64_t dst_len, Status &error) { 336 if (IsHost()) 337 return FileCache::GetInstance().ReadFile(fd, offset, dst, dst_len, error); 338 else if (m_remote_platform_sp) 339 return m_remote_platform_sp->ReadFile(fd, offset, dst, dst_len, error); 340 else 341 return Platform::ReadFile(fd, offset, dst, dst_len, error); 342 } 343 344 uint64_t PlatformPOSIX::WriteFile(lldb::user_id_t fd, uint64_t offset, 345 const void *src, uint64_t src_len, 346 Status &error) { 347 if (IsHost()) 348 return FileCache::GetInstance().WriteFile(fd, offset, src, src_len, error); 349 else if (m_remote_platform_sp) 350 return m_remote_platform_sp->WriteFile(fd, offset, src, src_len, error); 351 else 352 return Platform::WriteFile(fd, offset, src, src_len, error); 353 } 354 355 static uint32_t chown_file(Platform *platform, const char *path, 356 uint32_t uid = UINT32_MAX, 357 uint32_t gid = UINT32_MAX) { 358 if (!platform || !path || *path == 0) 359 return UINT32_MAX; 360 361 if (uid == UINT32_MAX && gid == UINT32_MAX) 362 return 0; // pretend I did chown correctly - actually I just didn't care 363 364 StreamString command; 365 command.PutCString("chown "); 366 if (uid != UINT32_MAX) 367 command.Printf("%d", uid); 368 if (gid != UINT32_MAX) 369 command.Printf(":%d", gid); 370 command.Printf("%s", path); 371 int status; 372 platform->RunShellCommand(command.GetData(), NULL, &status, NULL, NULL, 373 std::chrono::seconds(10)); 374 return status; 375 } 376 377 lldb_private::Status 378 PlatformPOSIX::PutFile(const lldb_private::FileSpec &source, 379 const lldb_private::FileSpec &destination, uint32_t uid, 380 uint32_t gid) { 381 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM)); 382 383 if (IsHost()) { 384 if (FileSpec::Equal(source, destination, true)) 385 return Status(); 386 // cp src dst 387 // chown uid:gid dst 388 std::string src_path(source.GetPath()); 389 if (src_path.empty()) 390 return Status("unable to get file path for source"); 391 std::string dst_path(destination.GetPath()); 392 if (dst_path.empty()) 393 return Status("unable to get file path for destination"); 394 StreamString command; 395 command.Printf("cp %s %s", src_path.c_str(), dst_path.c_str()); 396 int status; 397 RunShellCommand(command.GetData(), NULL, &status, NULL, NULL, 398 std::chrono::seconds(10)); 399 if (status != 0) 400 return Status("unable to perform copy"); 401 if (uid == UINT32_MAX && gid == UINT32_MAX) 402 return Status(); 403 if (chown_file(this, dst_path.c_str(), uid, gid) != 0) 404 return Status("unable to perform chown"); 405 return Status(); 406 } else if (m_remote_platform_sp) { 407 if (GetSupportsRSync()) { 408 std::string src_path(source.GetPath()); 409 if (src_path.empty()) 410 return Status("unable to get file path for source"); 411 std::string dst_path(destination.GetPath()); 412 if (dst_path.empty()) 413 return Status("unable to get file path for destination"); 414 StreamString command; 415 if (GetIgnoresRemoteHostname()) { 416 if (!GetRSyncPrefix()) 417 command.Printf("rsync %s %s %s", GetRSyncOpts(), src_path.c_str(), 418 dst_path.c_str()); 419 else 420 command.Printf("rsync %s %s %s%s", GetRSyncOpts(), src_path.c_str(), 421 GetRSyncPrefix(), dst_path.c_str()); 422 } else 423 command.Printf("rsync %s %s %s:%s", GetRSyncOpts(), src_path.c_str(), 424 GetHostname(), dst_path.c_str()); 425 if (log) 426 log->Printf("[PutFile] Running command: %s\n", command.GetData()); 427 int retcode; 428 Host::RunShellCommand(command.GetData(), NULL, &retcode, NULL, NULL, 429 std::chrono::minutes(1)); 430 if (retcode == 0) { 431 // Don't chown a local file for a remote system 432 // if (chown_file(this,dst_path.c_str(),uid,gid) != 0) 433 // return Status("unable to perform chown"); 434 return Status(); 435 } 436 // if we are still here rsync has failed - let's try the slow way before 437 // giving up 438 } 439 } 440 return Platform::PutFile(source, destination, uid, gid); 441 } 442 443 lldb::user_id_t PlatformPOSIX::GetFileSize(const FileSpec &file_spec) { 444 if (IsHost()) { 445 uint64_t Size; 446 if (llvm::sys::fs::file_size(file_spec.GetPath(), Size)) 447 return 0; 448 return Size; 449 } else if (m_remote_platform_sp) 450 return m_remote_platform_sp->GetFileSize(file_spec); 451 else 452 return Platform::GetFileSize(file_spec); 453 } 454 455 Status PlatformPOSIX::CreateSymlink(const FileSpec &src, const FileSpec &dst) { 456 if (IsHost()) 457 return FileSystem::Symlink(src, dst); 458 else if (m_remote_platform_sp) 459 return m_remote_platform_sp->CreateSymlink(src, dst); 460 else 461 return Platform::CreateSymlink(src, dst); 462 } 463 464 bool PlatformPOSIX::GetFileExists(const FileSpec &file_spec) { 465 if (IsHost()) 466 return file_spec.Exists(); 467 else if (m_remote_platform_sp) 468 return m_remote_platform_sp->GetFileExists(file_spec); 469 else 470 return Platform::GetFileExists(file_spec); 471 } 472 473 Status PlatformPOSIX::Unlink(const FileSpec &file_spec) { 474 if (IsHost()) 475 return llvm::sys::fs::remove(file_spec.GetPath()); 476 else if (m_remote_platform_sp) 477 return m_remote_platform_sp->Unlink(file_spec); 478 else 479 return Platform::Unlink(file_spec); 480 } 481 482 lldb_private::Status PlatformPOSIX::GetFile( 483 const lldb_private::FileSpec &source, // remote file path 484 const lldb_private::FileSpec &destination) // local file path 485 { 486 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM)); 487 488 // Check the args, first. 489 std::string src_path(source.GetPath()); 490 if (src_path.empty()) 491 return Status("unable to get file path for source"); 492 std::string dst_path(destination.GetPath()); 493 if (dst_path.empty()) 494 return Status("unable to get file path for destination"); 495 if (IsHost()) { 496 if (FileSpec::Equal(source, destination, true)) 497 return Status("local scenario->source and destination are the same file " 498 "path: no operation performed"); 499 // cp src dst 500 StreamString cp_command; 501 cp_command.Printf("cp %s %s", src_path.c_str(), dst_path.c_str()); 502 int status; 503 RunShellCommand(cp_command.GetData(), NULL, &status, NULL, NULL, 504 std::chrono::seconds(10)); 505 if (status != 0) 506 return Status("unable to perform copy"); 507 return Status(); 508 } else if (m_remote_platform_sp) { 509 if (GetSupportsRSync()) { 510 StreamString command; 511 if (GetIgnoresRemoteHostname()) { 512 if (!GetRSyncPrefix()) 513 command.Printf("rsync %s %s %s", GetRSyncOpts(), src_path.c_str(), 514 dst_path.c_str()); 515 else 516 command.Printf("rsync %s %s%s %s", GetRSyncOpts(), GetRSyncPrefix(), 517 src_path.c_str(), dst_path.c_str()); 518 } else 519 command.Printf("rsync %s %s:%s %s", GetRSyncOpts(), 520 m_remote_platform_sp->GetHostname(), src_path.c_str(), 521 dst_path.c_str()); 522 if (log) 523 log->Printf("[GetFile] Running command: %s\n", command.GetData()); 524 int retcode; 525 Host::RunShellCommand(command.GetData(), NULL, &retcode, NULL, NULL, 526 std::chrono::minutes(1)); 527 if (retcode == 0) 528 return Status(); 529 // If we are here, rsync has failed - let's try the slow way before 530 // giving up 531 } 532 // open src and dst 533 // read/write, read/write, read/write, ... 534 // close src 535 // close dst 536 if (log) 537 log->Printf("[GetFile] Using block by block transfer....\n"); 538 Status error; 539 user_id_t fd_src = OpenFile(source, File::eOpenOptionRead, 540 lldb::eFilePermissionsFileDefault, error); 541 542 if (fd_src == UINT64_MAX) 543 return Status("unable to open source file"); 544 545 uint32_t permissions = 0; 546 error = GetFilePermissions(source, permissions); 547 548 if (permissions == 0) 549 permissions = lldb::eFilePermissionsFileDefault; 550 551 user_id_t fd_dst = FileCache::GetInstance().OpenFile( 552 destination, File::eOpenOptionCanCreate | File::eOpenOptionWrite | 553 File::eOpenOptionTruncate, 554 permissions, error); 555 556 if (fd_dst == UINT64_MAX) { 557 if (error.Success()) 558 error.SetErrorString("unable to open destination file"); 559 } 560 561 if (error.Success()) { 562 lldb::DataBufferSP buffer_sp(new DataBufferHeap(1024, 0)); 563 uint64_t offset = 0; 564 error.Clear(); 565 while (error.Success()) { 566 const uint64_t n_read = ReadFile(fd_src, offset, buffer_sp->GetBytes(), 567 buffer_sp->GetByteSize(), error); 568 if (error.Fail()) 569 break; 570 if (n_read == 0) 571 break; 572 if (FileCache::GetInstance().WriteFile(fd_dst, offset, 573 buffer_sp->GetBytes(), n_read, 574 error) != n_read) { 575 if (!error.Fail()) 576 error.SetErrorString("unable to write to destination file"); 577 break; 578 } 579 offset += n_read; 580 } 581 } 582 // Ignore the close error of src. 583 if (fd_src != UINT64_MAX) 584 CloseFile(fd_src, error); 585 // And close the dst file descriptot. 586 if (fd_dst != UINT64_MAX && 587 !FileCache::GetInstance().CloseFile(fd_dst, error)) { 588 if (!error.Fail()) 589 error.SetErrorString("unable to close destination file"); 590 } 591 return error; 592 } 593 return Platform::GetFile(source, destination); 594 } 595 596 std::string PlatformPOSIX::GetPlatformSpecificConnectionInformation() { 597 StreamString stream; 598 if (GetSupportsRSync()) { 599 stream.PutCString("rsync"); 600 if ((GetRSyncOpts() && *GetRSyncOpts()) || 601 (GetRSyncPrefix() && *GetRSyncPrefix()) || GetIgnoresRemoteHostname()) { 602 stream.Printf(", options: "); 603 if (GetRSyncOpts() && *GetRSyncOpts()) 604 stream.Printf("'%s' ", GetRSyncOpts()); 605 stream.Printf(", prefix: "); 606 if (GetRSyncPrefix() && *GetRSyncPrefix()) 607 stream.Printf("'%s' ", GetRSyncPrefix()); 608 if (GetIgnoresRemoteHostname()) 609 stream.Printf("ignore remote-hostname "); 610 } 611 } 612 if (GetSupportsSSH()) { 613 stream.PutCString("ssh"); 614 if (GetSSHOpts() && *GetSSHOpts()) 615 stream.Printf(", options: '%s' ", GetSSHOpts()); 616 } 617 if (GetLocalCacheDirectory() && *GetLocalCacheDirectory()) 618 stream.Printf("cache dir: %s", GetLocalCacheDirectory()); 619 if (stream.GetSize()) 620 return stream.GetString(); 621 else 622 return ""; 623 } 624 625 bool PlatformPOSIX::CalculateMD5(const FileSpec &file_spec, uint64_t &low, 626 uint64_t &high) { 627 if (IsHost()) 628 return Platform::CalculateMD5(file_spec, low, high); 629 if (m_remote_platform_sp) 630 return m_remote_platform_sp->CalculateMD5(file_spec, low, high); 631 return false; 632 } 633 634 const lldb::UnixSignalsSP &PlatformPOSIX::GetRemoteUnixSignals() { 635 if (IsRemote() && m_remote_platform_sp) 636 return m_remote_platform_sp->GetRemoteUnixSignals(); 637 return Platform::GetRemoteUnixSignals(); 638 } 639 640 FileSpec PlatformPOSIX::GetRemoteWorkingDirectory() { 641 if (IsRemote() && m_remote_platform_sp) 642 return m_remote_platform_sp->GetRemoteWorkingDirectory(); 643 else 644 return Platform::GetRemoteWorkingDirectory(); 645 } 646 647 bool PlatformPOSIX::SetRemoteWorkingDirectory(const FileSpec &working_dir) { 648 if (IsRemote() && m_remote_platform_sp) 649 return m_remote_platform_sp->SetRemoteWorkingDirectory(working_dir); 650 else 651 return Platform::SetRemoteWorkingDirectory(working_dir); 652 } 653 654 bool PlatformPOSIX::GetRemoteOSVersion() { 655 if (m_remote_platform_sp) 656 return m_remote_platform_sp->GetOSVersion( 657 m_major_os_version, m_minor_os_version, m_update_os_version); 658 return false; 659 } 660 661 bool PlatformPOSIX::GetRemoteOSBuildString(std::string &s) { 662 if (m_remote_platform_sp) 663 return m_remote_platform_sp->GetRemoteOSBuildString(s); 664 s.clear(); 665 return false; 666 } 667 668 Environment PlatformPOSIX::GetEnvironment() { 669 if (IsRemote()) { 670 if (m_remote_platform_sp) 671 return m_remote_platform_sp->GetEnvironment(); 672 return Environment(); 673 } 674 return Host::GetEnvironment(); 675 } 676 677 bool PlatformPOSIX::GetRemoteOSKernelDescription(std::string &s) { 678 if (m_remote_platform_sp) 679 return m_remote_platform_sp->GetRemoteOSKernelDescription(s); 680 s.clear(); 681 return false; 682 } 683 684 // Remote Platform subclasses need to override this function 685 ArchSpec PlatformPOSIX::GetRemoteSystemArchitecture() { 686 if (m_remote_platform_sp) 687 return m_remote_platform_sp->GetRemoteSystemArchitecture(); 688 return ArchSpec(); 689 } 690 691 const char *PlatformPOSIX::GetHostname() { 692 if (IsHost()) 693 return Platform::GetHostname(); 694 695 if (m_remote_platform_sp) 696 return m_remote_platform_sp->GetHostname(); 697 return NULL; 698 } 699 700 const char *PlatformPOSIX::GetUserName(uint32_t uid) { 701 // Check the cache in Platform in case we have already looked this uid up 702 const char *user_name = Platform::GetUserName(uid); 703 if (user_name) 704 return user_name; 705 706 if (IsRemote() && m_remote_platform_sp) 707 return m_remote_platform_sp->GetUserName(uid); 708 return NULL; 709 } 710 711 const char *PlatformPOSIX::GetGroupName(uint32_t gid) { 712 const char *group_name = Platform::GetGroupName(gid); 713 if (group_name) 714 return group_name; 715 716 if (IsRemote() && m_remote_platform_sp) 717 return m_remote_platform_sp->GetGroupName(gid); 718 return NULL; 719 } 720 721 Status PlatformPOSIX::ConnectRemote(Args &args) { 722 Status error; 723 if (IsHost()) { 724 error.SetErrorStringWithFormat( 725 "can't connect to the host platform '%s', always connected", 726 GetPluginName().GetCString()); 727 } else { 728 if (!m_remote_platform_sp) 729 m_remote_platform_sp = 730 Platform::Create(ConstString("remote-gdb-server"), error); 731 732 if (m_remote_platform_sp && error.Success()) 733 error = m_remote_platform_sp->ConnectRemote(args); 734 else 735 error.SetErrorString("failed to create a 'remote-gdb-server' platform"); 736 737 if (error.Fail()) 738 m_remote_platform_sp.reset(); 739 } 740 741 if (error.Success() && m_remote_platform_sp) { 742 if (m_option_group_platform_rsync.get() && 743 m_option_group_platform_ssh.get() && 744 m_option_group_platform_caching.get()) { 745 if (m_option_group_platform_rsync->m_rsync) { 746 SetSupportsRSync(true); 747 SetRSyncOpts(m_option_group_platform_rsync->m_rsync_opts.c_str()); 748 SetRSyncPrefix(m_option_group_platform_rsync->m_rsync_prefix.c_str()); 749 SetIgnoresRemoteHostname( 750 m_option_group_platform_rsync->m_ignores_remote_hostname); 751 } 752 if (m_option_group_platform_ssh->m_ssh) { 753 SetSupportsSSH(true); 754 SetSSHOpts(m_option_group_platform_ssh->m_ssh_opts.c_str()); 755 } 756 SetLocalCacheDirectory( 757 m_option_group_platform_caching->m_cache_dir.c_str()); 758 } 759 } 760 761 return error; 762 } 763 764 Status PlatformPOSIX::DisconnectRemote() { 765 Status error; 766 767 if (IsHost()) { 768 error.SetErrorStringWithFormat( 769 "can't disconnect from the host platform '%s', always connected", 770 GetPluginName().GetCString()); 771 } else { 772 if (m_remote_platform_sp) 773 error = m_remote_platform_sp->DisconnectRemote(); 774 else 775 error.SetErrorString("the platform is not currently connected"); 776 } 777 return error; 778 } 779 780 Status PlatformPOSIX::LaunchProcess(ProcessLaunchInfo &launch_info) { 781 Status error; 782 783 if (IsHost()) { 784 error = Platform::LaunchProcess(launch_info); 785 } else { 786 if (m_remote_platform_sp) 787 error = m_remote_platform_sp->LaunchProcess(launch_info); 788 else 789 error.SetErrorString("the platform is not currently connected"); 790 } 791 return error; 792 } 793 794 lldb_private::Status PlatformPOSIX::KillProcess(const lldb::pid_t pid) { 795 if (IsHost()) 796 return Platform::KillProcess(pid); 797 798 if (m_remote_platform_sp) 799 return m_remote_platform_sp->KillProcess(pid); 800 801 return Status("the platform is not currently connected"); 802 } 803 804 lldb::ProcessSP PlatformPOSIX::Attach(ProcessAttachInfo &attach_info, 805 Debugger &debugger, Target *target, 806 Status &error) { 807 lldb::ProcessSP process_sp; 808 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM)); 809 810 if (IsHost()) { 811 if (target == NULL) { 812 TargetSP new_target_sp; 813 814 error = debugger.GetTargetList().CreateTarget(debugger, "", "", false, 815 NULL, new_target_sp); 816 target = new_target_sp.get(); 817 if (log) 818 log->Printf("PlatformPOSIX::%s created new target", __FUNCTION__); 819 } else { 820 error.Clear(); 821 if (log) 822 log->Printf("PlatformPOSIX::%s target already existed, setting target", 823 __FUNCTION__); 824 } 825 826 if (target && error.Success()) { 827 debugger.GetTargetList().SetSelectedTarget(target); 828 if (log) { 829 ModuleSP exe_module_sp = target->GetExecutableModule(); 830 log->Printf("PlatformPOSIX::%s set selected target to %p %s", 831 __FUNCTION__, (void *)target, 832 exe_module_sp 833 ? exe_module_sp->GetFileSpec().GetPath().c_str() 834 : "<null>"); 835 } 836 837 process_sp = 838 target->CreateProcess(attach_info.GetListenerForProcess(debugger), 839 attach_info.GetProcessPluginName(), NULL); 840 841 if (process_sp) { 842 ListenerSP listener_sp = attach_info.GetHijackListener(); 843 if (listener_sp == nullptr) { 844 listener_sp = 845 Listener::MakeListener("lldb.PlatformPOSIX.attach.hijack"); 846 attach_info.SetHijackListener(listener_sp); 847 } 848 process_sp->HijackProcessEvents(listener_sp); 849 error = process_sp->Attach(attach_info); 850 } 851 } 852 } else { 853 if (m_remote_platform_sp) 854 process_sp = 855 m_remote_platform_sp->Attach(attach_info, debugger, target, error); 856 else 857 error.SetErrorString("the platform is not currently connected"); 858 } 859 return process_sp; 860 } 861 862 lldb::ProcessSP 863 PlatformPOSIX::DebugProcess(ProcessLaunchInfo &launch_info, Debugger &debugger, 864 Target *target, // Can be NULL, if NULL create a new 865 // target, else use existing one 866 Status &error) { 867 ProcessSP process_sp; 868 869 if (IsHost()) { 870 // We are going to hand this process off to debugserver which will be in 871 // charge of setting the exit status. We still need to reap it from lldb 872 // but if we let the monitor thread also set the exit status, we set up a 873 // race between debugserver & us for who will find out about the debugged 874 // process's death. 875 launch_info.GetFlags().Set(eLaunchFlagDontSetExitStatus); 876 process_sp = Platform::DebugProcess(launch_info, debugger, target, error); 877 } else { 878 if (m_remote_platform_sp) 879 process_sp = m_remote_platform_sp->DebugProcess(launch_info, debugger, 880 target, error); 881 else 882 error.SetErrorString("the platform is not currently connected"); 883 } 884 return process_sp; 885 } 886 887 void PlatformPOSIX::CalculateTrapHandlerSymbolNames() { 888 m_trap_handlers.push_back(ConstString("_sigtramp")); 889 } 890 891 Status PlatformPOSIX::EvaluateLibdlExpression( 892 lldb_private::Process *process, const char *expr_cstr, 893 llvm::StringRef expr_prefix, lldb::ValueObjectSP &result_valobj_sp) { 894 DynamicLoader *loader = process->GetDynamicLoader(); 895 if (loader) { 896 Status error = loader->CanLoadImage(); 897 if (error.Fail()) 898 return error; 899 } 900 901 ThreadSP thread_sp(process->GetThreadList().GetExpressionExecutionThread()); 902 if (!thread_sp) 903 return Status("Selected thread isn't valid"); 904 905 StackFrameSP frame_sp(thread_sp->GetStackFrameAtIndex(0)); 906 if (!frame_sp) 907 return Status("Frame 0 isn't valid"); 908 909 ExecutionContext exe_ctx; 910 frame_sp->CalculateExecutionContext(exe_ctx); 911 EvaluateExpressionOptions expr_options; 912 expr_options.SetUnwindOnError(true); 913 expr_options.SetIgnoreBreakpoints(true); 914 expr_options.SetExecutionPolicy(eExecutionPolicyAlways); 915 expr_options.SetLanguage(eLanguageTypeC_plus_plus); 916 expr_options.SetTrapExceptions(false); // dlopen can't throw exceptions, so 917 // don't do the work to trap them. 918 expr_options.SetTimeout(std::chrono::seconds(2)); 919 920 Status expr_error; 921 ExpressionResults result = 922 UserExpression::Evaluate(exe_ctx, expr_options, expr_cstr, expr_prefix, 923 result_valobj_sp, expr_error); 924 if (result != eExpressionCompleted) 925 return expr_error; 926 927 if (result_valobj_sp->GetError().Fail()) 928 return result_valobj_sp->GetError(); 929 return Status(); 930 } 931 932 UtilityFunction * 933 PlatformPOSIX::MakeLoadImageUtilityFunction(ExecutionContext &exe_ctx, 934 Status &error) 935 { 936 // Remember to prepend this with the prefix from 937 // GetLibdlFunctionDeclarations. The returned values are all in 938 // __lldb_dlopen_result for consistency. The wrapper returns a void * but 939 // doesn't use it because UtilityFunctions don't work with void returns at 940 // present. 941 static const char *dlopen_wrapper_code = R"( 942 struct __lldb_dlopen_result { 943 void *image_ptr; 944 const char *error_str; 945 }; 946 947 void * __lldb_dlopen_wrapper (const char *path, 948 __lldb_dlopen_result *result_ptr) 949 { 950 result_ptr->image_ptr = dlopen(path, 2); 951 if (result_ptr->image_ptr == (void *) 0x0) 952 result_ptr->error_str = dlerror(); 953 return nullptr; 954 } 955 )"; 956 957 static const char *dlopen_wrapper_name = "__lldb_dlopen_wrapper"; 958 Process *process = exe_ctx.GetProcessSP().get(); 959 // Insert the dlopen shim defines into our generic expression: 960 std::string expr(GetLibdlFunctionDeclarations(process)); 961 expr.append(dlopen_wrapper_code); 962 Status utility_error; 963 DiagnosticManager diagnostics; 964 965 std::unique_ptr<UtilityFunction> dlopen_utility_func_up(process 966 ->GetTarget().GetUtilityFunctionForLanguage(expr.c_str(), 967 eLanguageTypeObjC, 968 dlopen_wrapper_name, 969 utility_error)); 970 if (utility_error.Fail()) { 971 error.SetErrorStringWithFormat("dlopen error: could not make utility" 972 "function: %s", utility_error.AsCString()); 973 return nullptr; 974 } 975 if (!dlopen_utility_func_up->Install(diagnostics, exe_ctx)) { 976 error.SetErrorStringWithFormat("dlopen error: could not install utility" 977 "function: %s", 978 diagnostics.GetString().c_str()); 979 return nullptr; 980 } 981 982 Value value; 983 ValueList arguments; 984 FunctionCaller *do_dlopen_function = nullptr; 985 UtilityFunction *dlopen_utility_func = nullptr; 986 987 // Fetch the clang types we will need: 988 ClangASTContext *ast = process->GetTarget().GetScratchClangASTContext(); 989 990 CompilerType clang_void_pointer_type 991 = ast->GetBasicType(eBasicTypeVoid).GetPointerType(); 992 CompilerType clang_char_pointer_type 993 = ast->GetBasicType(eBasicTypeChar).GetPointerType(); 994 995 // We are passing two arguments, the path to dlopen, and a pointer to the 996 // storage we've made for the result: 997 value.SetValueType(Value::eValueTypeScalar); 998 value.SetCompilerType(clang_void_pointer_type); 999 arguments.PushValue(value); 1000 value.SetCompilerType(clang_char_pointer_type); 1001 arguments.PushValue(value); 1002 1003 do_dlopen_function = dlopen_utility_func_up->MakeFunctionCaller( 1004 clang_void_pointer_type, arguments, exe_ctx.GetThreadSP(), utility_error); 1005 if (utility_error.Fail()) { 1006 error.SetErrorStringWithFormat("dlopen error: could not make function" 1007 "caller: %s", utility_error.AsCString()); 1008 return nullptr; 1009 } 1010 1011 do_dlopen_function = dlopen_utility_func_up->GetFunctionCaller(); 1012 if (!do_dlopen_function) { 1013 error.SetErrorString("dlopen error: could not get function caller."); 1014 return nullptr; 1015 } 1016 1017 // We made a good utility function, so cache it in the process: 1018 dlopen_utility_func = dlopen_utility_func_up.get(); 1019 process->SetLoadImageUtilityFunction(std::move(dlopen_utility_func_up)); 1020 return dlopen_utility_func; 1021 } 1022 1023 uint32_t PlatformPOSIX::DoLoadImage(lldb_private::Process *process, 1024 const lldb_private::FileSpec &remote_file, 1025 lldb_private::Status &error) { 1026 std::string path; 1027 path = remote_file.GetPath(); 1028 1029 ThreadSP thread_sp = process->GetThreadList().GetExpressionExecutionThread(); 1030 if (!thread_sp) { 1031 error.SetErrorString("dlopen error: no thread available to call dlopen."); 1032 return LLDB_INVALID_IMAGE_TOKEN; 1033 } 1034 1035 DiagnosticManager diagnostics; 1036 1037 ExecutionContext exe_ctx; 1038 thread_sp->CalculateExecutionContext(exe_ctx); 1039 1040 Status utility_error; 1041 1042 // The UtilityFunction is held in the Process. Platforms don't track the 1043 // lifespan of the Targets that use them, we can't put this in the Platform. 1044 UtilityFunction *dlopen_utility_func 1045 = process->GetLoadImageUtilityFunction(this); 1046 ValueList arguments; 1047 FunctionCaller *do_dlopen_function = nullptr; 1048 1049 if (!dlopen_utility_func) { 1050 // Make the UtilityFunction: 1051 dlopen_utility_func = MakeLoadImageUtilityFunction(exe_ctx, error); 1052 } 1053 // If we couldn't make it, the error will be in error, so we can exit here. 1054 if (!dlopen_utility_func) 1055 return LLDB_INVALID_IMAGE_TOKEN; 1056 1057 do_dlopen_function = dlopen_utility_func->GetFunctionCaller(); 1058 if (!do_dlopen_function) { 1059 error.SetErrorString("dlopen error: could not get function caller."); 1060 return LLDB_INVALID_IMAGE_TOKEN; 1061 } 1062 arguments = do_dlopen_function->GetArgumentValues(); 1063 1064 // Now insert the path we are searching for and the result structure into the 1065 // target. 1066 uint32_t permissions = ePermissionsReadable|ePermissionsWritable; 1067 size_t path_len = path.size() + 1; 1068 lldb::addr_t path_addr = process->AllocateMemory(path_len, 1069 permissions, 1070 utility_error); 1071 if (path_addr == LLDB_INVALID_ADDRESS) { 1072 error.SetErrorStringWithFormat("dlopen error: could not allocate memory" 1073 "for path: %s", utility_error.AsCString()); 1074 return LLDB_INVALID_IMAGE_TOKEN; 1075 } 1076 1077 // Make sure we deallocate the input string memory: 1078 CleanUp path_cleanup([process, path_addr] { 1079 process->DeallocateMemory(path_addr); 1080 }); 1081 1082 process->WriteMemory(path_addr, path.c_str(), path_len, utility_error); 1083 if (utility_error.Fail()) { 1084 error.SetErrorStringWithFormat("dlopen error: could not write path string:" 1085 " %s", utility_error.AsCString()); 1086 return LLDB_INVALID_IMAGE_TOKEN; 1087 } 1088 1089 // Make space for our return structure. It is two pointers big: the token 1090 // and the error string. 1091 const uint32_t addr_size = process->GetAddressByteSize(); 1092 lldb::addr_t return_addr = process->CallocateMemory(2*addr_size, 1093 permissions, 1094 utility_error); 1095 if (utility_error.Fail()) { 1096 error.SetErrorStringWithFormat("dlopen error: could not allocate memory" 1097 "for path: %s", utility_error.AsCString()); 1098 return LLDB_INVALID_IMAGE_TOKEN; 1099 } 1100 1101 // Make sure we deallocate the result structure memory 1102 CleanUp return_cleanup([process, return_addr] { 1103 process->DeallocateMemory(return_addr); 1104 }); 1105 1106 // Set the values into our args and write them to the target: 1107 arguments.GetValueAtIndex(0)->GetScalar() = path_addr; 1108 arguments.GetValueAtIndex(1)->GetScalar() = return_addr; 1109 1110 lldb::addr_t func_args_addr = LLDB_INVALID_ADDRESS; 1111 1112 diagnostics.Clear(); 1113 if (!do_dlopen_function->WriteFunctionArguments(exe_ctx, 1114 func_args_addr, 1115 arguments, 1116 diagnostics)) { 1117 error.SetErrorStringWithFormat("dlopen error: could not write function " 1118 "arguments: %s", 1119 diagnostics.GetString().c_str()); 1120 return LLDB_INVALID_IMAGE_TOKEN; 1121 } 1122 1123 // Make sure we clean up the args structure. We can't reuse it because the 1124 // Platform lives longer than the process and the Platforms don't get a 1125 // signal to clean up cached data when a process goes away. 1126 CleanUp args_cleanup([do_dlopen_function, &exe_ctx, func_args_addr] { 1127 do_dlopen_function->DeallocateFunctionResults(exe_ctx, func_args_addr); 1128 }); 1129 1130 // Now run the caller: 1131 EvaluateExpressionOptions options; 1132 options.SetExecutionPolicy(eExecutionPolicyAlways); 1133 options.SetLanguage(eLanguageTypeC_plus_plus); 1134 options.SetIgnoreBreakpoints(true); 1135 options.SetUnwindOnError(true); 1136 options.SetTrapExceptions(false); // dlopen can't throw exceptions, so 1137 // don't do the work to trap them. 1138 options.SetTimeout(std::chrono::seconds(2)); 1139 1140 Value return_value; 1141 // Fetch the clang types we will need: 1142 ClangASTContext *ast = process->GetTarget().GetScratchClangASTContext(); 1143 1144 CompilerType clang_void_pointer_type 1145 = ast->GetBasicType(eBasicTypeVoid).GetPointerType(); 1146 1147 return_value.SetCompilerType(clang_void_pointer_type); 1148 1149 ExpressionResults results = do_dlopen_function->ExecuteFunction( 1150 exe_ctx, &func_args_addr, options, diagnostics, return_value); 1151 if (results != eExpressionCompleted) { 1152 error.SetErrorStringWithFormat("dlopen error: could write execute " 1153 "dlopen wrapper function: %s", 1154 diagnostics.GetString().c_str()); 1155 return LLDB_INVALID_IMAGE_TOKEN; 1156 } 1157 1158 // Read the dlopen token from the return area: 1159 lldb::addr_t token = process->ReadPointerFromMemory(return_addr, 1160 utility_error); 1161 if (utility_error.Fail()) { 1162 error.SetErrorStringWithFormat("dlopen error: could not read the return " 1163 "struct: %s", utility_error.AsCString()); 1164 return LLDB_INVALID_IMAGE_TOKEN; 1165 } 1166 1167 // The dlopen succeeded! 1168 if (token != 0x0) 1169 return process->AddImageToken(token); 1170 1171 // We got an error, lets read in the error string: 1172 std::string dlopen_error_str; 1173 lldb::addr_t error_addr 1174 = process->ReadPointerFromMemory(return_addr + addr_size, utility_error); 1175 if (utility_error.Fail()) { 1176 error.SetErrorStringWithFormat("dlopen error: could not read error string: " 1177 "%s", utility_error.AsCString()); 1178 return LLDB_INVALID_IMAGE_TOKEN; 1179 } 1180 1181 size_t num_chars = process->ReadCStringFromMemory(error_addr + addr_size, 1182 dlopen_error_str, 1183 utility_error); 1184 if (utility_error.Success() && num_chars > 0) 1185 error.SetErrorStringWithFormat("dlopen error: %s", 1186 dlopen_error_str.c_str()); 1187 else 1188 error.SetErrorStringWithFormat("dlopen failed for unknown reasons."); 1189 1190 return LLDB_INVALID_IMAGE_TOKEN; 1191 } 1192 1193 Status PlatformPOSIX::UnloadImage(lldb_private::Process *process, 1194 uint32_t image_token) { 1195 const addr_t image_addr = process->GetImagePtrFromToken(image_token); 1196 if (image_addr == LLDB_INVALID_ADDRESS) 1197 return Status("Invalid image token"); 1198 1199 StreamString expr; 1200 expr.Printf("dlclose((void *)0x%" PRIx64 ")", image_addr); 1201 llvm::StringRef prefix = GetLibdlFunctionDeclarations(process); 1202 lldb::ValueObjectSP result_valobj_sp; 1203 Status error = EvaluateLibdlExpression(process, expr.GetData(), prefix, 1204 result_valobj_sp); 1205 if (error.Fail()) 1206 return error; 1207 1208 if (result_valobj_sp->GetError().Fail()) 1209 return result_valobj_sp->GetError(); 1210 1211 Scalar scalar; 1212 if (result_valobj_sp->ResolveValue(scalar)) { 1213 if (scalar.UInt(1)) 1214 return Status("expression failed: \"%s\"", expr.GetData()); 1215 process->ResetImageToken(image_token); 1216 } 1217 return Status(); 1218 } 1219 1220 lldb::ProcessSP PlatformPOSIX::ConnectProcess(llvm::StringRef connect_url, 1221 llvm::StringRef plugin_name, 1222 lldb_private::Debugger &debugger, 1223 lldb_private::Target *target, 1224 lldb_private::Status &error) { 1225 if (m_remote_platform_sp) 1226 return m_remote_platform_sp->ConnectProcess(connect_url, plugin_name, 1227 debugger, target, error); 1228 1229 return Platform::ConnectProcess(connect_url, plugin_name, debugger, target, 1230 error); 1231 } 1232 1233 llvm::StringRef 1234 PlatformPOSIX::GetLibdlFunctionDeclarations(lldb_private::Process *process) { 1235 return R"( 1236 extern "C" void* dlopen(const char*, int); 1237 extern "C" void* dlsym(void*, const char*); 1238 extern "C" int dlclose(void*); 1239 extern "C" char* dlerror(void); 1240 )"; 1241 } 1242 1243 size_t PlatformPOSIX::ConnectToWaitingProcesses(Debugger &debugger, 1244 Status &error) { 1245 if (m_remote_platform_sp) 1246 return m_remote_platform_sp->ConnectToWaitingProcesses(debugger, error); 1247 return Platform::ConnectToWaitingProcesses(debugger, error); 1248 } 1249 1250 ConstString PlatformPOSIX::GetFullNameForDylib(ConstString basename) { 1251 if (basename.IsEmpty()) 1252 return basename; 1253 1254 StreamString stream; 1255 stream.Printf("lib%s.so", basename.GetCString()); 1256 return ConstString(stream.GetString()); 1257 } 1258