1 //===-- PlatformLinux.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 "PlatformLinux.h" 11 #include "lldb/Host/Config.h" 12 13 // C Includes 14 #include <stdio.h> 15 #ifndef LLDB_DISABLE_POSIX 16 #include <sys/utsname.h> 17 #endif 18 19 // C++ Includes 20 // Other libraries and framework includes 21 // Project includes 22 #include "lldb/Breakpoint/BreakpointLocation.h" 23 #include "lldb/Core/Debugger.h" 24 #include "lldb/Core/Error.h" 25 #include "lldb/Core/Log.h" 26 #include "lldb/Core/Module.h" 27 #include "lldb/Core/ModuleList.h" 28 #include "lldb/Core/ModuleSpec.h" 29 #include "lldb/Core/PluginManager.h" 30 #include "lldb/Core/State.h" 31 #include "lldb/Core/StreamString.h" 32 #include "lldb/Host/FileSpec.h" 33 #include "lldb/Host/HostInfo.h" 34 #include "lldb/Interpreter/OptionValueProperties.h" 35 #include "lldb/Interpreter/Property.h" 36 #include "lldb/Target/Target.h" 37 #include "lldb/Target/Process.h" 38 39 // Define these constants from Linux mman.h for use when targeting 40 // remote linux systems even when host has different values. 41 #define MAP_PRIVATE 2 42 #define MAP_ANON 0x20 43 44 using namespace lldb; 45 using namespace lldb_private; 46 using namespace lldb_private::platform_linux; 47 48 static uint32_t g_initialize_count = 0; 49 50 //------------------------------------------------------------------ 51 /// Code to handle the PlatformLinux settings 52 //------------------------------------------------------------------ 53 54 namespace 55 { 56 class PlatformLinuxProperties : public Properties 57 { 58 public: 59 PlatformLinuxProperties(); 60 61 ~PlatformLinuxProperties() override = default; 62 63 static ConstString& 64 GetSettingName (); 65 66 private: 67 static const PropertyDefinition* 68 GetStaticPropertyDefinitions(); 69 }; 70 71 typedef std::shared_ptr<PlatformLinuxProperties> PlatformLinuxPropertiesSP; 72 73 } // anonymous namespace 74 75 PlatformLinuxProperties::PlatformLinuxProperties() : 76 Properties () 77 { 78 m_collection_sp.reset (new OptionValueProperties(GetSettingName ())); 79 m_collection_sp->Initialize (GetStaticPropertyDefinitions ()); 80 } 81 82 ConstString& 83 PlatformLinuxProperties::GetSettingName () 84 { 85 static ConstString g_setting_name("linux"); 86 return g_setting_name; 87 } 88 89 const PropertyDefinition* 90 PlatformLinuxProperties::GetStaticPropertyDefinitions() 91 { 92 static PropertyDefinition 93 g_properties[] = 94 { 95 { NULL , OptionValue::eTypeInvalid, false, 0 , NULL, NULL, NULL } 96 }; 97 98 return g_properties; 99 } 100 101 static const PlatformLinuxPropertiesSP & 102 GetGlobalProperties() 103 { 104 static PlatformLinuxPropertiesSP g_settings_sp; 105 if (!g_settings_sp) 106 g_settings_sp.reset (new PlatformLinuxProperties ()); 107 return g_settings_sp; 108 } 109 110 void 111 PlatformLinux::DebuggerInitialize (Debugger &debugger) 112 { 113 if (!PluginManager::GetSettingForPlatformPlugin (debugger, PlatformLinuxProperties::GetSettingName())) 114 { 115 const bool is_global_setting = true; 116 PluginManager::CreateSettingForPlatformPlugin (debugger, 117 GetGlobalProperties()->GetValueProperties(), 118 ConstString ("Properties for the PlatformLinux plug-in."), 119 is_global_setting); 120 } 121 } 122 123 //------------------------------------------------------------------ 124 125 PlatformSP 126 PlatformLinux::CreateInstance (bool force, const ArchSpec *arch) 127 { 128 Log *log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_PLATFORM)); 129 if (log) 130 { 131 const char *arch_name; 132 if (arch && arch->GetArchitectureName ()) 133 arch_name = arch->GetArchitectureName (); 134 else 135 arch_name = "<null>"; 136 137 const char *triple_cstr = arch ? arch->GetTriple ().getTriple ().c_str() : "<null>"; 138 139 log->Printf ("PlatformLinux::%s(force=%s, arch={%s,%s})", __FUNCTION__, force ? "true" : "false", arch_name, triple_cstr); 140 } 141 142 bool create = force; 143 if (create == false && arch && arch->IsValid()) 144 { 145 const llvm::Triple &triple = arch->GetTriple(); 146 switch (triple.getOS()) 147 { 148 case llvm::Triple::Linux: 149 create = true; 150 break; 151 152 #if defined(__linux__) 153 // Only accept "unknown" for the OS if the host is linux and 154 // it "unknown" wasn't specified (it was just returned because it 155 // was NOT specified) 156 case llvm::Triple::OSType::UnknownOS: 157 create = !arch->TripleOSWasSpecified(); 158 break; 159 #endif 160 default: 161 break; 162 } 163 } 164 165 if (create) 166 { 167 if (log) 168 log->Printf ("PlatformLinux::%s() creating remote-linux platform", __FUNCTION__); 169 return PlatformSP(new PlatformLinux(false)); 170 } 171 172 if (log) 173 log->Printf ("PlatformLinux::%s() aborting creation of remote-linux platform", __FUNCTION__); 174 175 return PlatformSP(); 176 } 177 178 ConstString 179 PlatformLinux::GetPluginNameStatic (bool is_host) 180 { 181 if (is_host) 182 { 183 static ConstString g_host_name(Platform::GetHostPlatformName ()); 184 return g_host_name; 185 } 186 else 187 { 188 static ConstString g_remote_name("remote-linux"); 189 return g_remote_name; 190 } 191 } 192 193 const char * 194 PlatformLinux::GetPluginDescriptionStatic (bool is_host) 195 { 196 if (is_host) 197 return "Local Linux user platform plug-in."; 198 else 199 return "Remote Linux user platform plug-in."; 200 } 201 202 ConstString 203 PlatformLinux::GetPluginName() 204 { 205 return GetPluginNameStatic(IsHost()); 206 } 207 208 void 209 PlatformLinux::Initialize () 210 { 211 PlatformPOSIX::Initialize (); 212 213 if (g_initialize_count++ == 0) 214 { 215 #if defined(__linux__) && !defined(__ANDROID__) 216 PlatformSP default_platform_sp (new PlatformLinux(true)); 217 default_platform_sp->SetSystemArchitecture(HostInfo::GetArchitecture()); 218 Platform::SetHostPlatform (default_platform_sp); 219 #endif 220 PluginManager::RegisterPlugin(PlatformLinux::GetPluginNameStatic(false), 221 PlatformLinux::GetPluginDescriptionStatic(false), 222 PlatformLinux::CreateInstance, 223 PlatformLinux::DebuggerInitialize); 224 } 225 } 226 227 void 228 PlatformLinux::Terminate () 229 { 230 if (g_initialize_count > 0) 231 { 232 if (--g_initialize_count == 0) 233 { 234 PluginManager::UnregisterPlugin (PlatformLinux::CreateInstance); 235 } 236 } 237 238 PlatformPOSIX::Terminate (); 239 } 240 241 Error 242 PlatformLinux::ResolveExecutable (const ModuleSpec &ms, 243 lldb::ModuleSP &exe_module_sp, 244 const FileSpecList *module_search_paths_ptr) 245 { 246 Error error; 247 // Nothing special to do here, just use the actual file and architecture 248 249 char exe_path[PATH_MAX]; 250 ModuleSpec resolved_module_spec (ms); 251 252 if (IsHost()) 253 { 254 // If we have "ls" as the exe_file, resolve the executable location based on 255 // the current path variables 256 if (!resolved_module_spec.GetFileSpec().Exists()) 257 { 258 resolved_module_spec.GetFileSpec().GetPath(exe_path, sizeof(exe_path)); 259 resolved_module_spec.GetFileSpec().SetFile(exe_path, true); 260 } 261 262 if (!resolved_module_spec.GetFileSpec().Exists()) 263 resolved_module_spec.GetFileSpec().ResolveExecutableLocation (); 264 265 if (resolved_module_spec.GetFileSpec().Exists()) 266 error.Clear(); 267 else 268 { 269 error.SetErrorStringWithFormat("unable to find executable for '%s'", resolved_module_spec.GetFileSpec().GetPath().c_str()); 270 } 271 } 272 else 273 { 274 if (m_remote_platform_sp) 275 { 276 error = GetCachedExecutable (resolved_module_spec, exe_module_sp, module_search_paths_ptr, *m_remote_platform_sp); 277 } 278 else 279 { 280 // We may connect to a process and use the provided executable (Don't use local $PATH). 281 282 if (resolved_module_spec.GetFileSpec().Exists()) 283 error.Clear(); 284 else 285 error.SetErrorStringWithFormat("the platform is not currently connected, and '%s' doesn't exist in the system root.", exe_path); 286 } 287 } 288 289 if (error.Success()) 290 { 291 if (resolved_module_spec.GetArchitecture().IsValid()) 292 { 293 error = ModuleList::GetSharedModule (resolved_module_spec, 294 exe_module_sp, 295 NULL, 296 NULL, 297 NULL); 298 if (error.Fail()) 299 { 300 // If we failed, it may be because the vendor and os aren't known. If that is the 301 // case, try setting them to the host architecture and give it another try. 302 llvm::Triple &module_triple = resolved_module_spec.GetArchitecture().GetTriple(); 303 bool is_vendor_specified = (module_triple.getVendor() != llvm::Triple::UnknownVendor); 304 bool is_os_specified = (module_triple.getOS() != llvm::Triple::UnknownOS); 305 if (!is_vendor_specified || !is_os_specified) 306 { 307 const llvm::Triple &host_triple = HostInfo::GetArchitecture(HostInfo::eArchKindDefault).GetTriple(); 308 309 if (!is_vendor_specified) 310 module_triple.setVendorName (host_triple.getVendorName()); 311 if (!is_os_specified) 312 module_triple.setOSName (host_triple.getOSName()); 313 314 error = ModuleList::GetSharedModule (resolved_module_spec, 315 exe_module_sp, 316 NULL, 317 NULL, 318 NULL); 319 } 320 } 321 322 // TODO find out why exe_module_sp might be NULL 323 if (!exe_module_sp || exe_module_sp->GetObjectFile() == NULL) 324 { 325 exe_module_sp.reset(); 326 error.SetErrorStringWithFormat ("'%s' doesn't contain the architecture %s", 327 resolved_module_spec.GetFileSpec().GetPath().c_str(), 328 resolved_module_spec.GetArchitecture().GetArchitectureName()); 329 } 330 } 331 else 332 { 333 // No valid architecture was specified, ask the platform for 334 // the architectures that we should be using (in the correct order) 335 // and see if we can find a match that way 336 StreamString arch_names; 337 for (uint32_t idx = 0; GetSupportedArchitectureAtIndex (idx, resolved_module_spec.GetArchitecture()); ++idx) 338 { 339 error = ModuleList::GetSharedModule (resolved_module_spec, 340 exe_module_sp, 341 NULL, 342 NULL, 343 NULL); 344 // Did we find an executable using one of the 345 if (error.Success()) 346 { 347 if (exe_module_sp && exe_module_sp->GetObjectFile()) 348 break; 349 else 350 error.SetErrorToGenericError(); 351 } 352 353 if (idx > 0) 354 arch_names.PutCString (", "); 355 arch_names.PutCString (resolved_module_spec.GetArchitecture().GetArchitectureName()); 356 } 357 358 if (error.Fail() || !exe_module_sp) 359 { 360 if (resolved_module_spec.GetFileSpec().Readable()) 361 { 362 error.SetErrorStringWithFormat ("'%s' doesn't contain any '%s' platform architectures: %s", 363 resolved_module_spec.GetFileSpec().GetPath().c_str(), 364 GetPluginName().GetCString(), 365 arch_names.GetString().c_str()); 366 } 367 else 368 { 369 error.SetErrorStringWithFormat("'%s' is not readable", resolved_module_spec.GetFileSpec().GetPath().c_str()); 370 } 371 } 372 } 373 } 374 375 return error; 376 } 377 378 Error 379 PlatformLinux::GetFileWithUUID (const FileSpec &platform_file, 380 const UUID *uuid_ptr, FileSpec &local_file) 381 { 382 if (IsRemote()) 383 { 384 if (m_remote_platform_sp) 385 return m_remote_platform_sp->GetFileWithUUID (platform_file, uuid_ptr, local_file); 386 } 387 388 // Default to the local case 389 local_file = platform_file; 390 return Error(); 391 } 392 393 //------------------------------------------------------------------ 394 /// Default Constructor 395 //------------------------------------------------------------------ 396 PlatformLinux::PlatformLinux (bool is_host) : 397 PlatformPOSIX(is_host) // This is the local host platform 398 { 399 } 400 401 //------------------------------------------------------------------ 402 /// Destructor. 403 /// 404 /// The destructor is virtual since this class is designed to be 405 /// inherited from by the plug-in instance. 406 //------------------------------------------------------------------ 407 PlatformLinux::~PlatformLinux() = default; 408 409 bool 410 PlatformLinux::GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &process_info) 411 { 412 bool success = false; 413 if (IsHost()) 414 { 415 success = Platform::GetProcessInfo (pid, process_info); 416 } 417 else 418 { 419 if (m_remote_platform_sp) 420 success = m_remote_platform_sp->GetProcessInfo (pid, process_info); 421 } 422 return success; 423 } 424 425 uint32_t 426 PlatformLinux::FindProcesses (const ProcessInstanceInfoMatch &match_info, 427 ProcessInstanceInfoList &process_infos) 428 { 429 uint32_t match_count = 0; 430 if (IsHost()) 431 { 432 // Let the base class figure out the host details 433 match_count = Platform::FindProcesses (match_info, process_infos); 434 } 435 else 436 { 437 // If we are remote, we can only return results if we are connected 438 if (m_remote_platform_sp) 439 match_count = m_remote_platform_sp->FindProcesses (match_info, process_infos); 440 } 441 return match_count; 442 } 443 444 bool 445 PlatformLinux::GetSupportedArchitectureAtIndex (uint32_t idx, ArchSpec &arch) 446 { 447 if (IsHost()) 448 { 449 ArchSpec hostArch = HostInfo::GetArchitecture(HostInfo::eArchKindDefault); 450 if (hostArch.GetTriple().isOSLinux()) 451 { 452 if (idx == 0) 453 { 454 arch = hostArch; 455 return arch.IsValid(); 456 } 457 else if (idx == 1) 458 { 459 // If the default host architecture is 64-bit, look for a 32-bit variant 460 if (hostArch.IsValid() && hostArch.GetTriple().isArch64Bit()) 461 { 462 arch = HostInfo::GetArchitecture(HostInfo::eArchKind32); 463 return arch.IsValid(); 464 } 465 } 466 } 467 } 468 else 469 { 470 if (m_remote_platform_sp) 471 return m_remote_platform_sp->GetSupportedArchitectureAtIndex(idx, arch); 472 473 llvm::Triple triple; 474 // Set the OS to linux 475 triple.setOS(llvm::Triple::Linux); 476 // Set the architecture 477 switch (idx) 478 { 479 case 0: triple.setArchName("x86_64"); break; 480 case 1: triple.setArchName("i386"); break; 481 case 2: triple.setArchName("arm"); break; 482 case 3: triple.setArchName("aarch64"); break; 483 case 4: triple.setArchName("mips64"); break; 484 case 5: triple.setArchName("hexagon"); break; 485 case 6: triple.setArchName("mips"); break; 486 case 7: triple.setArchName("mips64el"); break; 487 case 8: triple.setArchName("mipsel"); break; 488 default: return false; 489 } 490 // Leave the vendor as "llvm::Triple:UnknownVendor" and don't specify the vendor by 491 // calling triple.SetVendorName("unknown") so that it is a "unspecified unknown". 492 // This means when someone calls triple.GetVendorName() it will return an empty string 493 // which indicates that the vendor can be set when two architectures are merged 494 495 // Now set the triple into "arch" and return true 496 arch.SetTriple(triple); 497 return true; 498 } 499 return false; 500 } 501 502 void 503 PlatformLinux::GetStatus (Stream &strm) 504 { 505 Platform::GetStatus(strm); 506 507 #ifndef LLDB_DISABLE_POSIX 508 // Display local kernel information only when we are running in host mode. 509 // Otherwise, we would end up printing non-Linux information (when running 510 // on Mac OS for example). 511 if (IsHost()) 512 { 513 struct utsname un; 514 515 if (uname(&un)) 516 return; 517 518 strm.Printf (" Kernel: %s\n", un.sysname); 519 strm.Printf (" Release: %s\n", un.release); 520 strm.Printf (" Version: %s\n", un.version); 521 } 522 #endif 523 } 524 525 int32_t 526 PlatformLinux::GetResumeCountForLaunchInfo (ProcessLaunchInfo &launch_info) 527 { 528 int32_t resume_count = 0; 529 530 // Always resume past the initial stop when we use eLaunchFlagDebug 531 if (launch_info.GetFlags ().Test (eLaunchFlagDebug)) 532 { 533 // Resume past the stop for the final exec into the true inferior. 534 ++resume_count; 535 } 536 537 // If we're not launching a shell, we're done. 538 const FileSpec &shell = launch_info.GetShell(); 539 if (!shell) 540 return resume_count; 541 542 std::string shell_string = shell.GetPath(); 543 // We're in a shell, so for sure we have to resume past the shell exec. 544 ++resume_count; 545 546 // Figure out what shell we're planning on using. 547 const char *shell_name = strrchr (shell_string.c_str(), '/'); 548 if (shell_name == NULL) 549 shell_name = shell_string.c_str(); 550 else 551 shell_name++; 552 553 if (strcmp (shell_name, "csh") == 0 554 || strcmp (shell_name, "tcsh") == 0 555 || strcmp (shell_name, "zsh") == 0 556 || strcmp (shell_name, "sh") == 0) 557 { 558 // These shells seem to re-exec themselves. Add another resume. 559 ++resume_count; 560 } 561 562 return resume_count; 563 } 564 565 bool 566 PlatformLinux::CanDebugProcess () 567 { 568 if (IsHost ()) 569 { 570 return true; 571 } 572 else 573 { 574 // If we're connected, we can debug. 575 return IsConnected (); 576 } 577 } 578 579 // For local debugging, Linux will override the debug logic to use llgs-launch rather than 580 // lldb-launch, llgs-attach. This differs from current lldb-launch, debugserver-attach 581 // approach on MacOSX. 582 lldb::ProcessSP 583 PlatformLinux::DebugProcess (ProcessLaunchInfo &launch_info, 584 Debugger &debugger, 585 Target *target, // Can be NULL, if NULL create a new target, else use existing one 586 Error &error) 587 { 588 Log *log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_PLATFORM)); 589 if (log) 590 log->Printf ("PlatformLinux::%s entered (target %p)", __FUNCTION__, static_cast<void*>(target)); 591 592 // If we're a remote host, use standard behavior from parent class. 593 if (!IsHost ()) 594 return PlatformPOSIX::DebugProcess (launch_info, debugger, target, error); 595 596 // 597 // For local debugging, we'll insist on having ProcessGDBRemote create the process. 598 // 599 600 ProcessSP process_sp; 601 602 // Make sure we stop at the entry point 603 launch_info.GetFlags ().Set (eLaunchFlagDebug); 604 605 // We always launch the process we are going to debug in a separate process 606 // group, since then we can handle ^C interrupts ourselves w/o having to worry 607 // about the target getting them as well. 608 launch_info.SetLaunchInSeparateProcessGroup(true); 609 610 // Ensure we have a target. 611 if (target == nullptr) 612 { 613 if (log) 614 log->Printf ("PlatformLinux::%s creating new target", __FUNCTION__); 615 616 TargetSP new_target_sp; 617 error = debugger.GetTargetList().CreateTarget (debugger, 618 nullptr, 619 nullptr, 620 false, 621 nullptr, 622 new_target_sp); 623 if (error.Fail ()) 624 { 625 if (log) 626 log->Printf ("PlatformLinux::%s failed to create new target: %s", __FUNCTION__, error.AsCString ()); 627 return process_sp; 628 } 629 630 target = new_target_sp.get(); 631 if (!target) 632 { 633 error.SetErrorString ("CreateTarget() returned nullptr"); 634 if (log) 635 log->Printf ("PlatformLinux::%s failed: %s", __FUNCTION__, error.AsCString ()); 636 return process_sp; 637 } 638 } 639 else 640 { 641 if (log) 642 log->Printf ("PlatformLinux::%s using provided target", __FUNCTION__); 643 } 644 645 // Mark target as currently selected target. 646 debugger.GetTargetList().SetSelectedTarget(target); 647 648 // Now create the gdb-remote process. 649 if (log) 650 log->Printf ("PlatformLinux::%s having target create process with gdb-remote plugin", __FUNCTION__); 651 process_sp = target->CreateProcess (launch_info.GetListenerForProcess(debugger), "gdb-remote", nullptr); 652 653 if (!process_sp) 654 { 655 error.SetErrorString ("CreateProcess() failed for gdb-remote process"); 656 if (log) 657 log->Printf ("PlatformLinux::%s failed: %s", __FUNCTION__, error.AsCString ()); 658 return process_sp; 659 } 660 else 661 { 662 if (log) 663 log->Printf ("PlatformLinux::%s successfully created process", __FUNCTION__); 664 } 665 666 // Adjust launch for a hijacker. 667 ListenerSP listener_sp; 668 if (!launch_info.GetHijackListener ()) 669 { 670 if (log) 671 log->Printf ("PlatformLinux::%s setting up hijacker", __FUNCTION__); 672 673 listener_sp = Listener::MakeListener("lldb.PlatformLinux.DebugProcess.hijack"); 674 launch_info.SetHijackListener (listener_sp); 675 process_sp->HijackProcessEvents (listener_sp); 676 } 677 678 // Log file actions. 679 if (log) 680 { 681 log->Printf ("PlatformLinux::%s launching process with the following file actions:", __FUNCTION__); 682 683 StreamString stream; 684 size_t i = 0; 685 const FileAction *file_action; 686 while ((file_action = launch_info.GetFileActionAtIndex (i++)) != nullptr) 687 { 688 file_action->Dump (stream); 689 log->PutCString (stream.GetString().c_str ()); 690 stream.Clear(); 691 } 692 } 693 694 // Do the launch. 695 error = process_sp->Launch(launch_info); 696 if (error.Success ()) 697 { 698 // Handle the hijacking of process events. 699 if (listener_sp) 700 { 701 const StateType state = process_sp->WaitForProcessToStop (NULL, NULL, false, listener_sp); 702 703 if (state == eStateStopped) 704 { 705 if (log) 706 log->Printf ("PlatformLinux::%s pid %" PRIu64 " state %s\n", 707 __FUNCTION__, process_sp->GetID (), StateAsCString (state)); 708 } 709 else 710 { 711 if (log) 712 log->Printf ("PlatformLinux::%s pid %" PRIu64 " state is not stopped - %s\n", 713 __FUNCTION__, process_sp->GetID (), StateAsCString (state)); 714 } 715 } 716 717 // Hook up process PTY if we have one (which we should for local debugging with llgs). 718 int pty_fd = launch_info.GetPTY().ReleaseMasterFileDescriptor(); 719 if (pty_fd != lldb_utility::PseudoTerminal::invalid_fd) 720 { 721 process_sp->SetSTDIOFileDescriptor(pty_fd); 722 if (log) 723 log->Printf ("PlatformLinux::%s pid %" PRIu64 " hooked up STDIO pty to process", __FUNCTION__, process_sp->GetID ()); 724 } 725 else 726 { 727 if (log) 728 log->Printf ("PlatformLinux::%s pid %" PRIu64 " not using process STDIO pty", __FUNCTION__, process_sp->GetID ()); 729 } 730 } 731 else 732 { 733 if (log) 734 log->Printf ("PlatformLinux::%s process launch failed: %s", __FUNCTION__, error.AsCString ()); 735 // FIXME figure out appropriate cleanup here. Do we delete the target? Do we delete the process? Does our caller do that? 736 } 737 738 return process_sp; 739 } 740 741 void 742 PlatformLinux::CalculateTrapHandlerSymbolNames () 743 { 744 m_trap_handlers.push_back (ConstString ("_sigtramp")); 745 } 746 747 uint64_t 748 PlatformLinux::ConvertMmapFlagsToPlatform(const ArchSpec &arch, unsigned flags) 749 { 750 uint64_t flags_platform = 0; 751 uint64_t map_anon = MAP_ANON; 752 753 // To get correct flags for MIPS Architecture 754 if (arch.GetTriple ().getArch () == llvm::Triple::mips64 755 || arch.GetTriple ().getArch () == llvm::Triple::mips64el 756 || arch.GetTriple ().getArch () == llvm::Triple::mips 757 || arch.GetTriple ().getArch () == llvm::Triple::mipsel) 758 map_anon = 0x800; 759 760 if (flags & eMmapFlagsPrivate) 761 flags_platform |= MAP_PRIVATE; 762 if (flags & eMmapFlagsAnon) 763 flags_platform |= map_anon; 764 return flags_platform; 765 } 766 767 ConstString 768 PlatformLinux::GetFullNameForDylib (ConstString basename) 769 { 770 if (basename.IsEmpty()) 771 return basename; 772 773 StreamString stream; 774 stream.Printf("lib%s.so", basename.GetCString()); 775 return ConstString(stream.GetData()); 776 } 777