1193326Sed//===-- driver.cpp - Clang GCC-Compatible Driver --------------------------===// 2193326Sed// 3193326Sed// The LLVM Compiler Infrastructure 4193326Sed// 5193326Sed// This file is distributed under the University of Illinois Open Source 6193326Sed// License. See LICENSE.TXT for details. 7193326Sed// 8193326Sed//===----------------------------------------------------------------------===// 9193326Sed// 10193326Sed// This is the entry point to the clang driver; it is a thin wrapper 11193326Sed// for functionality in the Driver clang library. 12193326Sed// 13193326Sed//===----------------------------------------------------------------------===// 14193326Sed 15249423Sdim#include "clang/Basic/CharInfo.h" 16243830Sdim#include "clang/Basic/DiagnosticOptions.h" 17193326Sed#include "clang/Driver/Compilation.h" 18193326Sed#include "clang/Driver/Driver.h" 19249423Sdim#include "clang/Driver/DriverDiagnostic.h" 20249423Sdim#include "clang/Driver/Options.h" 21234353Sdim#include "clang/Frontend/CompilerInvocation.h" 22204643Srdivacky#include "clang/Frontend/TextDiagnosticPrinter.h" 23234353Sdim#include "clang/Frontend/Utils.h" 24221345Sdim#include "llvm/ADT/ArrayRef.h" 25249423Sdim#include "llvm/ADT/OwningPtr.h" 26193326Sed#include "llvm/ADT/SmallString.h" 27212904Sdim#include "llvm/ADT/SmallVector.h" 28263508Sdim#include "llvm/ADT/STLExtras.h" 29263508Sdim#include "llvm/Option/ArgList.h" 30263508Sdim#include "llvm/Option/OptTable.h" 31263508Sdim#include "llvm/Option/Option.h" 32263508Sdim#include "llvm/Support/CommandLine.h" 33212904Sdim#include "llvm/Support/ErrorHandling.h" 34218893Sdim#include "llvm/Support/FileSystem.h" 35249423Sdim#include "llvm/Support/Host.h" 36193326Sed#include "llvm/Support/ManagedStatic.h" 37212904Sdim#include "llvm/Support/MemoryBuffer.h" 38249423Sdim#include "llvm/Support/Path.h" 39193326Sed#include "llvm/Support/PrettyStackTrace.h" 40263508Sdim#include "llvm/Support/Process.h" 41249423Sdim#include "llvm/Support/Program.h" 42204643Srdivacky#include "llvm/Support/Regex.h" 43218893Sdim#include "llvm/Support/Signals.h" 44226633Sdim#include "llvm/Support/TargetRegistry.h" 45226633Sdim#include "llvm/Support/TargetSelect.h" 46249423Sdim#include "llvm/Support/Timer.h" 47249423Sdim#include "llvm/Support/raw_ostream.h" 48218893Sdim#include "llvm/Support/system_error.h" 49193326Sedusing namespace clang; 50193326Sedusing namespace clang::driver; 51263508Sdimusing namespace llvm::opt; 52193326Sed 53263508Sdimstd::string GetExecutablePath(const char *Argv0, bool CanonicalPrefixes) { 54200583Srdivacky if (!CanonicalPrefixes) 55263508Sdim return Argv0; 56200583Srdivacky 57193326Sed // This just needs to be some symbol in the binary; C++ doesn't 58193326Sed // allow taking the address of ::main however. 59193326Sed void *P = (void*) (intptr_t) GetExecutablePath; 60263508Sdim return llvm::sys::fs::getMainExecutable(Argv0, P); 61193326Sed} 62193326Sed 63198092Srdivackystatic const char *SaveStringInSet(std::set<std::string> &SavedStrings, 64226633Sdim StringRef S) { 65193326Sed return SavedStrings.insert(S).first->c_str(); 66193326Sed} 67193326Sed 68193326Sed/// ApplyQAOverride - Apply a list of edits to the input argument lists. 69193326Sed/// 70193326Sed/// The input string is a space separate list of edits to perform, 71193326Sed/// they are applied in order to the input argument lists. Edits 72193326Sed/// should be one of the following forms: 73193326Sed/// 74198092Srdivacky/// '#': Silence information about the changes to the command line arguments. 75198092Srdivacky/// 76193326Sed/// '^': Add FOO as a new argument at the beginning of the command line. 77193326Sed/// 78193326Sed/// '+': Add FOO as a new argument at the end of the command line. 79193326Sed/// 80204643Srdivacky/// 's/XXX/YYY/': Substitute the regular expression XXX with YYY in the command 81204643Srdivacky/// line. 82193326Sed/// 83193326Sed/// 'xOPTION': Removes all instances of the literal argument OPTION. 84193326Sed/// 85193326Sed/// 'XOPTION': Removes all instances of the literal argument OPTION, 86193326Sed/// and the following argument. 87193326Sed/// 88193326Sed/// 'Ox': Removes all flags matching 'O' or 'O[sz0-9]' and adds 'Ox' 89193326Sed/// at the end of the command line. 90198092Srdivacky/// 91198092Srdivacky/// \param OS - The stream to write edit information to. 92198092Srdivacky/// \param Args - The vector of command line arguments. 93198092Srdivacky/// \param Edit - The override command to perform. 94198092Srdivacky/// \param SavedStrings - Set to use for storing string representations. 95226633Sdimstatic void ApplyOneQAOverride(raw_ostream &OS, 96226633Sdim SmallVectorImpl<const char*> &Args, 97226633Sdim StringRef Edit, 98206084Srdivacky std::set<std::string> &SavedStrings) { 99193326Sed // This does not need to be efficient. 100193326Sed 101198092Srdivacky if (Edit[0] == '^') { 102198092Srdivacky const char *Str = 103204643Srdivacky SaveStringInSet(SavedStrings, Edit.substr(1)); 104198092Srdivacky OS << "### Adding argument " << Str << " at beginning\n"; 105198092Srdivacky Args.insert(Args.begin() + 1, Str); 106198092Srdivacky } else if (Edit[0] == '+') { 107198092Srdivacky const char *Str = 108204643Srdivacky SaveStringInSet(SavedStrings, Edit.substr(1)); 109198092Srdivacky OS << "### Adding argument " << Str << " at end\n"; 110198092Srdivacky Args.push_back(Str); 111204643Srdivacky } else if (Edit[0] == 's' && Edit[1] == '/' && Edit.endswith("/") && 112226633Sdim Edit.slice(2, Edit.size()-1).find('/') != StringRef::npos) { 113226633Sdim StringRef MatchPattern = Edit.substr(2).split('/').first; 114226633Sdim StringRef ReplPattern = Edit.substr(2).split('/').second; 115204643Srdivacky ReplPattern = ReplPattern.slice(0, ReplPattern.size()-1); 116204643Srdivacky 117204643Srdivacky for (unsigned i = 1, e = Args.size(); i != e; ++i) { 118204643Srdivacky std::string Repl = llvm::Regex(MatchPattern).sub(ReplPattern, Args[i]); 119204643Srdivacky 120204643Srdivacky if (Repl != Args[i]) { 121204643Srdivacky OS << "### Replacing '" << Args[i] << "' with '" << Repl << "'\n"; 122204643Srdivacky Args[i] = SaveStringInSet(SavedStrings, Repl); 123204643Srdivacky } 124204643Srdivacky } 125198092Srdivacky } else if (Edit[0] == 'x' || Edit[0] == 'X') { 126198092Srdivacky std::string Option = Edit.substr(1, std::string::npos); 127198092Srdivacky for (unsigned i = 1; i < Args.size();) { 128198092Srdivacky if (Option == Args[i]) { 129198092Srdivacky OS << "### Deleting argument " << Args[i] << '\n'; 130198092Srdivacky Args.erase(Args.begin() + i); 131198092Srdivacky if (Edit[0] == 'X') { 132198092Srdivacky if (i < Args.size()) { 133198092Srdivacky OS << "### Deleting argument " << Args[i] << '\n'; 134198092Srdivacky Args.erase(Args.begin() + i); 135198092Srdivacky } else 136198092Srdivacky OS << "### Invalid X edit, end of command line!\n"; 137198092Srdivacky } 138198092Srdivacky } else 139198092Srdivacky ++i; 140198092Srdivacky } 141198092Srdivacky } else if (Edit[0] == 'O') { 142198092Srdivacky for (unsigned i = 1; i < Args.size();) { 143198092Srdivacky const char *A = Args[i]; 144198092Srdivacky if (A[0] == '-' && A[1] == 'O' && 145198092Srdivacky (A[2] == '\0' || 146198092Srdivacky (A[3] == '\0' && (A[2] == 's' || A[2] == 'z' || 147198092Srdivacky ('0' <= A[2] && A[2] <= '9'))))) { 148198092Srdivacky OS << "### Deleting argument " << Args[i] << '\n'; 149198092Srdivacky Args.erase(Args.begin() + i); 150198092Srdivacky } else 151198092Srdivacky ++i; 152198092Srdivacky } 153198092Srdivacky OS << "### Adding argument " << Edit << " at end\n"; 154204643Srdivacky Args.push_back(SaveStringInSet(SavedStrings, '-' + Edit.str())); 155198092Srdivacky } else { 156198092Srdivacky OS << "### Unrecognized edit: " << Edit << "\n"; 157198092Srdivacky } 158193326Sed} 159193326Sed 160193326Sed/// ApplyQAOverride - Apply a comma separate list of edits to the 161193326Sed/// input argument lists. See ApplyOneQAOverride. 162226633Sdimstatic void ApplyQAOverride(SmallVectorImpl<const char*> &Args, 163206084Srdivacky const char *OverrideStr, 164206084Srdivacky std::set<std::string> &SavedStrings) { 165226633Sdim raw_ostream *OS = &llvm::errs(); 166193326Sed 167198092Srdivacky if (OverrideStr[0] == '#') { 168198092Srdivacky ++OverrideStr; 169198092Srdivacky OS = &llvm::nulls(); 170198092Srdivacky } 171198092Srdivacky 172198092Srdivacky *OS << "### QA_OVERRIDE_GCC3_OPTIONS: " << OverrideStr << "\n"; 173198092Srdivacky 174193326Sed // This does not need to be efficient. 175193326Sed 176193326Sed const char *S = OverrideStr; 177193326Sed while (*S) { 178193326Sed const char *End = ::strchr(S, ' '); 179193326Sed if (!End) 180193326Sed End = S + strlen(S); 181193326Sed if (End != S) 182198092Srdivacky ApplyOneQAOverride(*OS, Args, std::string(S, End), SavedStrings); 183193326Sed S = End; 184193326Sed if (*S != '\0') 185193326Sed ++S; 186193326Sed } 187193326Sed} 188193326Sed 189199990Srdivackyextern int cc1_main(const char **ArgBegin, const char **ArgEnd, 190199990Srdivacky const char *Argv0, void *MainAddr); 191208600Srdivackyextern int cc1as_main(const char **ArgBegin, const char **ArgEnd, 192208600Srdivacky const char *Argv0, void *MainAddr); 193199512Srdivacky 194226633Sdimstatic void ParseProgName(SmallVectorImpl<const char *> &ArgVector, 195221345Sdim std::set<std::string> &SavedStrings, 196221345Sdim Driver &TheDriver) 197221345Sdim{ 198221345Sdim // Try to infer frontend type and default target from the program name. 199221345Sdim 200221345Sdim // suffixes[] contains the list of known driver suffixes. 201221345Sdim // Suffixes are compared against the program name in order. 202221345Sdim // If there is a match, the frontend type is updated as necessary (CPP/C++). 203221345Sdim // If there is no match, a second round is done after stripping the last 204221345Sdim // hyphen and everything following it. This allows using something like 205221345Sdim // "clang++-2.9". 206221345Sdim 207221345Sdim // If there is a match in either the first or second round, 208221345Sdim // the function tries to identify a target as prefix. E.g. 209221345Sdim // "x86_64-linux-clang" as interpreted as suffix "clang" with 210221345Sdim // target prefix "x86_64-linux". If such a target prefix is found, 211234353Sdim // is gets added via -target as implicit first argument. 212221345Sdim static const struct { 213221345Sdim const char *Suffix; 214263508Sdim const char *ModeFlag; 215221345Sdim } suffixes [] = { 216263508Sdim { "clang", 0 }, 217263508Sdim { "clang++", "--driver-mode=g++" }, 218263508Sdim { "clang-c++", "--driver-mode=g++" }, 219263508Sdim { "clang-cc", 0 }, 220263508Sdim { "clang-cpp", "--driver-mode=cpp" }, 221263508Sdim { "clang-g++", "--driver-mode=g++" }, 222263508Sdim { "clang-gcc", 0 }, 223263508Sdim { "clang-cl", "--driver-mode=cl" }, 224263508Sdim { "cc", 0 }, 225263508Sdim { "cpp", "--driver-mode=cpp" }, 226263508Sdim { "cl" , "--driver-mode=cl" }, 227263508Sdim { "++", "--driver-mode=g++" }, 228221345Sdim }; 229221345Sdim std::string ProgName(llvm::sys::path::stem(ArgVector[0])); 230263508Sdim#ifdef _WIN32 231263508Sdim std::transform(ProgName.begin(), ProgName.end(), ProgName.begin(), 232263508Sdim toLowercase); 233263508Sdim#endif 234226633Sdim StringRef ProgNameRef(ProgName); 235226633Sdim StringRef Prefix; 236221345Sdim 237221345Sdim for (int Components = 2; Components; --Components) { 238221345Sdim bool FoundMatch = false; 239221345Sdim size_t i; 240221345Sdim 241221345Sdim for (i = 0; i < sizeof(suffixes) / sizeof(suffixes[0]); ++i) { 242221345Sdim if (ProgNameRef.endswith(suffixes[i].Suffix)) { 243221345Sdim FoundMatch = true; 244263508Sdim SmallVectorImpl<const char *>::iterator it = ArgVector.begin(); 245263508Sdim if (it != ArgVector.end()) 246263508Sdim ++it; 247263508Sdim if (suffixes[i].ModeFlag) 248263508Sdim ArgVector.insert(it, suffixes[i].ModeFlag); 249221345Sdim break; 250221345Sdim } 251221345Sdim } 252221345Sdim 253221345Sdim if (FoundMatch) { 254226633Sdim StringRef::size_type LastComponent = ProgNameRef.rfind('-', 255221345Sdim ProgNameRef.size() - strlen(suffixes[i].Suffix)); 256226633Sdim if (LastComponent != StringRef::npos) 257221345Sdim Prefix = ProgNameRef.slice(0, LastComponent); 258221345Sdim break; 259221345Sdim } 260221345Sdim 261226633Sdim StringRef::size_type LastComponent = ProgNameRef.rfind('-'); 262226633Sdim if (LastComponent == StringRef::npos) 263221345Sdim break; 264221345Sdim ProgNameRef = ProgNameRef.slice(0, LastComponent); 265221345Sdim } 266221345Sdim 267221345Sdim if (Prefix.empty()) 268221345Sdim return; 269221345Sdim 270221345Sdim std::string IgnoredError; 271221345Sdim if (llvm::TargetRegistry::lookupTarget(Prefix, IgnoredError)) { 272226633Sdim SmallVectorImpl<const char *>::iterator it = ArgVector.begin(); 273224145Sdim if (it != ArgVector.end()) 274224145Sdim ++it; 275263508Sdim const char* Strings[] = 276263508Sdim { SaveStringInSet(SavedStrings, std::string("-target")), 277263508Sdim SaveStringInSet(SavedStrings, Prefix) }; 278263508Sdim ArgVector.insert(it, Strings, Strings + llvm::array_lengthof(Strings)); 279221345Sdim } 280221345Sdim} 281221345Sdim 282263508Sdimnamespace { 283263508Sdim class StringSetSaver : public llvm::cl::StringSaver { 284263508Sdim public: 285263508Sdim StringSetSaver(std::set<std::string> &Storage) : Storage(Storage) {} 286263508Sdim const char *SaveString(const char *Str) LLVM_OVERRIDE { 287263508Sdim return SaveStringInSet(Storage, Str); 288263508Sdim } 289263508Sdim private: 290263508Sdim std::set<std::string> &Storage; 291263508Sdim }; 292263508Sdim} 293263508Sdim 294212904Sdimint main(int argc_, const char **argv_) { 295193326Sed llvm::sys::PrintStackTraceOnErrorSignal(); 296212904Sdim llvm::PrettyStackTraceProgram X(argc_, argv_); 297193326Sed 298263508Sdim SmallVector<const char *, 256> argv; 299263508Sdim llvm::SpecificBumpPtrAllocator<char> ArgAllocator; 300263508Sdim llvm::error_code EC = llvm::sys::Process::GetArgumentVector( 301263508Sdim argv, llvm::ArrayRef<const char *>(argv_, argc_), ArgAllocator); 302263508Sdim if (EC) { 303263508Sdim llvm::errs() << "error: couldn't get arguments: " << EC.message() << '\n'; 304263508Sdim return 1; 305263508Sdim } 306263508Sdim 307212904Sdim std::set<std::string> SavedStrings; 308263508Sdim StringSetSaver Saver(SavedStrings); 309263508Sdim llvm::cl::ExpandResponseFiles(Saver, llvm::cl::TokenizeGNUCommandLine, argv); 310212904Sdim 311208600Srdivacky // Handle -cc1 integrated tools. 312226633Sdim if (argv.size() > 1 && StringRef(argv[1]).startswith("-cc1")) { 313226633Sdim StringRef Tool = argv[1] + 4; 314199990Srdivacky 315208600Srdivacky if (Tool == "") 316212904Sdim return cc1_main(argv.data()+2, argv.data()+argv.size(), argv[0], 317208600Srdivacky (void*) (intptr_t) GetExecutablePath); 318208600Srdivacky if (Tool == "as") 319212904Sdim return cc1as_main(argv.data()+2, argv.data()+argv.size(), argv[0], 320208600Srdivacky (void*) (intptr_t) GetExecutablePath); 321208600Srdivacky 322208600Srdivacky // Reject unknown tools. 323208600Srdivacky llvm::errs() << "error: unknown integrated tool '" << Tool << "'\n"; 324208600Srdivacky return 1; 325208600Srdivacky } 326208600Srdivacky 327200583Srdivacky bool CanonicalPrefixes = true; 328212904Sdim for (int i = 1, size = argv.size(); i < size; ++i) { 329226633Sdim if (StringRef(argv[i]) == "-no-canonical-prefixes") { 330200583Srdivacky CanonicalPrefixes = false; 331200583Srdivacky break; 332200583Srdivacky } 333200583Srdivacky } 334200583Srdivacky 335249423Sdim // Handle QA_OVERRIDE_GCC3_OPTIONS and CCC_ADD_ARGS, used for editing a 336249423Sdim // command line behind the scenes. 337249423Sdim if (const char *OverrideStr = ::getenv("QA_OVERRIDE_GCC3_OPTIONS")) { 338249423Sdim // FIXME: Driver shouldn't take extra initial argument. 339249423Sdim ApplyQAOverride(argv, OverrideStr, SavedStrings); 340249423Sdim } 341249423Sdim 342263508Sdim std::string Path = GetExecutablePath(argv[0], CanonicalPrefixes); 343200583Srdivacky 344243830Sdim IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions; 345234353Sdim { 346263508Sdim OwningPtr<OptTable> Opts(createDriverOptTable()); 347234353Sdim unsigned MissingArgIndex, MissingArgCount; 348263508Sdim OwningPtr<InputArgList> Args(Opts->ParseArgs(argv.begin()+1, argv.end(), 349263508Sdim MissingArgIndex, 350263508Sdim MissingArgCount)); 351234353Sdim // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 352234353Sdim // Any errors that would be diagnosed here will also be diagnosed later, 353234353Sdim // when the DiagnosticsEngine actually exists. 354243830Sdim (void) ParseDiagnosticArgs(*DiagOpts, *Args); 355234353Sdim } 356234353Sdim // Now we can create the DiagnosticsEngine with a properly-filled-out 357234353Sdim // DiagnosticOptions instance. 358212904Sdim TextDiagnosticPrinter *DiagClient 359243830Sdim = new TextDiagnosticPrinter(llvm::errs(), &*DiagOpts); 360263508Sdim 361263508Sdim // If the clang binary happens to be named cl.exe for compatibility reasons, 362263508Sdim // use clang-cl.exe as the prefix to avoid confusion between clang and MSVC. 363263508Sdim StringRef ExeBasename(llvm::sys::path::filename(Path)); 364263508Sdim if (ExeBasename.equals_lower("cl.exe")) 365263508Sdim ExeBasename = "clang-cl.exe"; 366263508Sdim DiagClient->setPrefix(ExeBasename); 367263508Sdim 368234353Sdim IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs()); 369234353Sdim 370243830Sdim DiagnosticsEngine Diags(DiagID, &*DiagOpts, DiagClient); 371249423Sdim ProcessWarningOptions(Diags, *DiagOpts, /*ReportDiags=*/false); 372193326Sed 373263508Sdim Driver TheDriver(Path, llvm::sys::getDefaultTargetTriple(), "a.out", Diags); 374193326Sed 375212904Sdim // Attempt to find the original path used to invoke the driver, to determine 376212904Sdim // the installed path. We do this manually, because we want to support that 377212904Sdim // path being a symlink. 378218893Sdim { 379234353Sdim SmallString<128> InstalledPath(argv[0]); 380212904Sdim 381218893Sdim // Do a PATH lookup, if there are no directory components. 382218893Sdim if (llvm::sys::path::filename(InstalledPath) == InstalledPath) { 383263508Sdim std::string Tmp = llvm::sys::FindProgramByName( 384218893Sdim llvm::sys::path::filename(InstalledPath.str())); 385218893Sdim if (!Tmp.empty()) 386263508Sdim InstalledPath = Tmp; 387218893Sdim } 388218893Sdim llvm::sys::fs::make_absolute(InstalledPath); 389218893Sdim InstalledPath = llvm::sys::path::parent_path(InstalledPath); 390218893Sdim bool exists; 391218893Sdim if (!llvm::sys::fs::exists(InstalledPath.str(), exists) && exists) 392218893Sdim TheDriver.setInstalledDir(InstalledPath); 393212904Sdim } 394212904Sdim 395221345Sdim llvm::InitializeAllTargets(); 396221345Sdim ParseProgName(argv, SavedStrings, TheDriver); 397199482Srdivacky 398205408Srdivacky // Handle CC_PRINT_OPTIONS and CC_PRINT_OPTIONS_FILE. 399205408Srdivacky TheDriver.CCPrintOptions = !!::getenv("CC_PRINT_OPTIONS"); 400205408Srdivacky if (TheDriver.CCPrintOptions) 401205408Srdivacky TheDriver.CCPrintOptionsFilename = ::getenv("CC_PRINT_OPTIONS_FILE"); 402205408Srdivacky 403218893Sdim // Handle CC_PRINT_HEADERS and CC_PRINT_HEADERS_FILE. 404218893Sdim TheDriver.CCPrintHeaders = !!::getenv("CC_PRINT_HEADERS"); 405218893Sdim if (TheDriver.CCPrintHeaders) 406218893Sdim TheDriver.CCPrintHeadersFilename = ::getenv("CC_PRINT_HEADERS_FILE"); 407218893Sdim 408221345Sdim // Handle CC_LOG_DIAGNOSTICS and CC_LOG_DIAGNOSTICS_FILE. 409221345Sdim TheDriver.CCLogDiagnostics = !!::getenv("CC_LOG_DIAGNOSTICS"); 410221345Sdim if (TheDriver.CCLogDiagnostics) 411221345Sdim TheDriver.CCLogDiagnosticsFilename = ::getenv("CC_LOG_DIAGNOSTICS_FILE"); 412221345Sdim 413234353Sdim OwningPtr<Compilation> C(TheDriver.BuildCompilation(argv)); 414193326Sed int Res = 0; 415249423Sdim SmallVector<std::pair<int, const Command *>, 4> FailingCommands; 416193326Sed if (C.get()) 417249423Sdim Res = TheDriver.ExecuteCompilation(*C, FailingCommands); 418226633Sdim 419239462Sdim // Force a crash to test the diagnostics. 420249423Sdim if (::getenv("FORCE_CLANG_DIAGNOSTICS_CRASH")) { 421249423Sdim Diags.Report(diag::err_drv_force_crash) << "FORCE_CLANG_DIAGNOSTICS_CRASH"; 422249423Sdim const Command *FailingCommand = 0; 423249423Sdim FailingCommands.push_back(std::make_pair(-1, FailingCommand)); 424249423Sdim } 425239462Sdim 426249423Sdim for (SmallVectorImpl< std::pair<int, const Command *> >::iterator it = 427249423Sdim FailingCommands.begin(), ie = FailingCommands.end(); it != ie; ++it) { 428249423Sdim int CommandRes = it->first; 429249423Sdim const Command *FailingCommand = it->second; 430249423Sdim if (!Res) 431249423Sdim Res = CommandRes; 432226633Sdim 433249423Sdim // If result status is < 0, then the driver command signalled an error. 434249423Sdim // If result status is 70, then the driver command reported a fatal error. 435249423Sdim // In these cases, generate additional diagnostic information if possible. 436249423Sdim if (CommandRes < 0 || CommandRes == 70) { 437249423Sdim TheDriver.generateCompilationDiagnostics(*C, FailingCommand); 438249423Sdim break; 439249423Sdim } 440249423Sdim } 441249423Sdim 442206084Srdivacky // If any timers were active but haven't been destroyed yet, print their 443206084Srdivacky // results now. This happens in -disable-free mode. 444206084Srdivacky llvm::TimerGroup::printAll(llvm::errs()); 445206084Srdivacky 446193326Sed llvm::llvm_shutdown(); 447193326Sed 448239462Sdim#ifdef _WIN32 449239462Sdim // Exit status should not be negative on Win32, unless abnormal termination. 450239462Sdim // Once abnormal termiation was caught, negative status should not be 451239462Sdim // propagated. 452239462Sdim if (Res < 0) 453239462Sdim Res = 1; 454239462Sdim#endif 455239462Sdim 456249423Sdim // If we have multiple failing commands, we return the result of the first 457249423Sdim // failing command. 458193326Sed return Res; 459193326Sed} 460