1 //===--- Driver.cpp - Clang GCC Compatible Driver -------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "clang/Driver/Driver.h"
11 #include "InputInfo.h"
12 #include "ToolChains.h"
13 #include "clang/Basic/Version.h"
14 #include "clang/Config/config.h"
15 #include "clang/Driver/Action.h"
16 #include "clang/Driver/Compilation.h"
17 #include "clang/Driver/DriverDiagnostic.h"
18 #include "clang/Driver/Job.h"
19 #include "clang/Driver/Options.h"
20 #include "clang/Driver/Tool.h"
21 #include "clang/Driver/ToolChain.h"
22 #include "llvm/ADT/ArrayRef.h"
23 #include "llvm/ADT/STLExtras.h"
24 #include "llvm/ADT/StringExtras.h"
25 #include "llvm/ADT/StringSet.h"
26 #include "llvm/ADT/StringSwitch.h"
27 #include "llvm/Option/Arg.h"
28 #include "llvm/Option/ArgList.h"
29 #include "llvm/Option/OptSpecifier.h"
30 #include "llvm/Option/OptTable.h"
31 #include "llvm/Option/Option.h"
32 #include "llvm/Support/Debug.h"
33 #include "llvm/Support/ErrorHandling.h"
34 #include "llvm/Support/FileSystem.h"
35 #include "llvm/Support/Path.h"
36 #include "llvm/Support/PrettyStackTrace.h"
37 #include "llvm/Support/Process.h"
38 #include "llvm/Support/Program.h"
39 #include "llvm/Support/raw_ostream.h"
43 using namespace clang::driver;
44 using namespace clang;
45 using namespace llvm::opt;
47 Driver::Driver(StringRef ClangExecutable,
48 StringRef DefaultTargetTriple,
49 DiagnosticsEngine &Diags)
50 : Opts(createDriverOptTable()), Diags(Diags), Mode(GCCMode),
51 ClangExecutable(ClangExecutable), SysRoot(DEFAULT_SYSROOT),
52 UseStdLib(true), DefaultTargetTriple(DefaultTargetTriple),
53 DefaultImageName("a.out"),
54 DriverTitle("clang LLVM compiler"),
55 CCPrintOptionsFilename(nullptr), CCPrintHeadersFilename(nullptr),
56 CCLogDiagnosticsFilename(nullptr),
57 CCCPrintBindings(false),
58 CCPrintHeaders(false), CCLogDiagnostics(false),
59 CCGenDiagnostics(false), CCCGenericGCCName(""), CheckInputsExist(true),
60 CCCUsePCH(true), SuppressMissingInputWarning(false) {
62 Name = llvm::sys::path::stem(ClangExecutable);
63 Dir = llvm::sys::path::parent_path(ClangExecutable);
65 // Compute the path to the resource directory.
66 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
67 SmallString<128> P(Dir);
68 if (ClangResourceDir != "")
69 llvm::sys::path::append(P, ClangResourceDir);
71 llvm::sys::path::append(P, "..", "lib", "clang", CLANG_VERSION_STRING);
72 ResourceDir = P.str();
78 llvm::DeleteContainerSeconds(ToolChains);
81 void Driver::ParseDriverMode(ArrayRef<const char *> Args) {
82 const std::string OptName =
83 getOpts().getOption(options::OPT_driver_mode).getPrefixedName();
85 for (size_t I = 0, E = Args.size(); I != E; ++I) {
86 const StringRef Arg = Args[I];
87 if (!Arg.startswith(OptName))
90 const StringRef Value = Arg.drop_front(OptName.size());
91 const unsigned M = llvm::StringSwitch<unsigned>(Value)
99 Mode = static_cast<DriverMode>(M);
101 Diag(diag::err_drv_unsupported_option_argument) << OptName << Value;
105 InputArgList *Driver::ParseArgStrings(ArrayRef<const char *> ArgList) {
106 llvm::PrettyStackTraceString CrashInfo("Command line argument parsing");
108 unsigned IncludedFlagsBitmask;
109 unsigned ExcludedFlagsBitmask;
110 std::tie(IncludedFlagsBitmask, ExcludedFlagsBitmask) =
111 getIncludeExcludeOptionFlagMasks();
113 unsigned MissingArgIndex, MissingArgCount;
114 InputArgList *Args = getOpts().ParseArgs(ArgList.begin(), ArgList.end(),
115 MissingArgIndex, MissingArgCount,
116 IncludedFlagsBitmask,
117 ExcludedFlagsBitmask);
119 // Check for missing argument error.
121 Diag(clang::diag::err_drv_missing_argument)
122 << Args->getArgString(MissingArgIndex) << MissingArgCount;
124 // Check for unsupported options.
125 for (ArgList::const_iterator it = Args->begin(), ie = Args->end();
128 if (A->getOption().hasFlag(options::Unsupported)) {
129 Diag(clang::diag::err_drv_unsupported_opt) << A->getAsString(*Args);
133 // Warn about -mcpu= without an argument.
134 if (A->getOption().matches(options::OPT_mcpu_EQ) &&
135 A->containsValue("")) {
136 Diag(clang::diag::warn_drv_empty_joined_argument) <<
137 A->getAsString(*Args);
141 for (arg_iterator it = Args->filtered_begin(options::OPT_UNKNOWN),
142 ie = Args->filtered_end(); it != ie; ++it) {
143 Diags.Report(diag::err_drv_unknown_argument) << (*it) ->getAsString(*Args);
149 // Determine which compilation mode we are in. We look for options which
150 // affect the phase, starting with the earliest phases, and record which
151 // option we used to determine the final phase.
152 phases::ID Driver::getFinalPhase(const DerivedArgList &DAL, Arg **FinalPhaseArg)
154 Arg *PhaseArg = nullptr;
155 phases::ID FinalPhase;
157 // -{E,EP,P,M,MM} only run the preprocessor.
159 (PhaseArg = DAL.getLastArg(options::OPT_E)) ||
160 (PhaseArg = DAL.getLastArg(options::OPT__SLASH_EP)) ||
161 (PhaseArg = DAL.getLastArg(options::OPT_M, options::OPT_MM)) ||
162 (PhaseArg = DAL.getLastArg(options::OPT__SLASH_P))) {
163 FinalPhase = phases::Preprocess;
165 // -{fsyntax-only,-analyze,emit-ast,S} only run up to the compiler.
166 } else if ((PhaseArg = DAL.getLastArg(options::OPT_fsyntax_only)) ||
167 (PhaseArg = DAL.getLastArg(options::OPT_module_file_info)) ||
168 (PhaseArg = DAL.getLastArg(options::OPT_verify_pch)) ||
169 (PhaseArg = DAL.getLastArg(options::OPT_rewrite_objc)) ||
170 (PhaseArg = DAL.getLastArg(options::OPT_rewrite_legacy_objc)) ||
171 (PhaseArg = DAL.getLastArg(options::OPT__migrate)) ||
172 (PhaseArg = DAL.getLastArg(options::OPT__analyze,
173 options::OPT__analyze_auto)) ||
174 (PhaseArg = DAL.getLastArg(options::OPT_emit_ast)) ||
175 (PhaseArg = DAL.getLastArg(options::OPT_S))) {
176 FinalPhase = phases::Compile;
178 // -c only runs up to the assembler.
179 } else if ((PhaseArg = DAL.getLastArg(options::OPT_c))) {
180 FinalPhase = phases::Assemble;
182 // Otherwise do everything.
184 FinalPhase = phases::Link;
187 *FinalPhaseArg = PhaseArg;
192 static Arg* MakeInputArg(DerivedArgList &Args, OptTable *Opts,
194 Arg *A = new Arg(Opts->getOption(options::OPT_INPUT), Value,
195 Args.getBaseArgs().MakeIndex(Value), Value.data());
196 Args.AddSynthesizedArg(A);
201 DerivedArgList *Driver::TranslateInputArgs(const InputArgList &Args) const {
202 DerivedArgList *DAL = new DerivedArgList(Args);
204 bool HasNostdlib = Args.hasArg(options::OPT_nostdlib);
205 for (ArgList::const_iterator it = Args.begin(),
206 ie = Args.end(); it != ie; ++it) {
209 // Unfortunately, we have to parse some forwarding options (-Xassembler,
210 // -Xlinker, -Xpreprocessor) because we either integrate their functionality
211 // (assembler and preprocessor), or bypass a previous driver ('collect2').
213 // Rewrite linker options, to replace --no-demangle with a custom internal
215 if ((A->getOption().matches(options::OPT_Wl_COMMA) ||
216 A->getOption().matches(options::OPT_Xlinker)) &&
217 A->containsValue("--no-demangle")) {
218 // Add the rewritten no-demangle argument.
219 DAL->AddFlagArg(A, Opts->getOption(options::OPT_Z_Xlinker__no_demangle));
221 // Add the remaining values as Xlinker arguments.
222 for (unsigned i = 0, e = A->getNumValues(); i != e; ++i)
223 if (StringRef(A->getValue(i)) != "--no-demangle")
224 DAL->AddSeparateArg(A, Opts->getOption(options::OPT_Xlinker),
230 // Rewrite preprocessor options, to replace -Wp,-MD,FOO which is used by
231 // some build systems. We don't try to be complete here because we don't
232 // care to encourage this usage model.
233 if (A->getOption().matches(options::OPT_Wp_COMMA) &&
234 (A->getValue(0) == StringRef("-MD") ||
235 A->getValue(0) == StringRef("-MMD"))) {
236 // Rewrite to -MD/-MMD along with -MF.
237 if (A->getValue(0) == StringRef("-MD"))
238 DAL->AddFlagArg(A, Opts->getOption(options::OPT_MD));
240 DAL->AddFlagArg(A, Opts->getOption(options::OPT_MMD));
241 if (A->getNumValues() == 2)
242 DAL->AddSeparateArg(A, Opts->getOption(options::OPT_MF),
247 // Rewrite reserved library names.
248 if (A->getOption().matches(options::OPT_l)) {
249 StringRef Value = A->getValue();
251 // Rewrite unless -nostdlib is present.
252 if (!HasNostdlib && Value == "stdc++") {
253 DAL->AddFlagArg(A, Opts->getOption(
254 options::OPT_Z_reserved_lib_stdcxx));
258 // Rewrite unconditionally.
259 if (Value == "cc_kext") {
260 DAL->AddFlagArg(A, Opts->getOption(
261 options::OPT_Z_reserved_lib_cckext));
266 // Pick up inputs via the -- option.
267 if (A->getOption().matches(options::OPT__DASH_DASH)) {
269 for (unsigned i = 0, e = A->getNumValues(); i != e; ++i)
270 DAL->append(MakeInputArg(*DAL, Opts, A->getValue(i)));
277 // Add a default value of -mlinker-version=, if one was given and the user
278 // didn't specify one.
279 #if defined(HOST_LINK_VERSION)
280 if (!Args.hasArg(options::OPT_mlinker_version_EQ)) {
281 DAL->AddJoinedArg(0, Opts->getOption(options::OPT_mlinker_version_EQ),
283 DAL->getLastArg(options::OPT_mlinker_version_EQ)->claim();
290 Compilation *Driver::BuildCompilation(ArrayRef<const char *> ArgList) {
291 llvm::PrettyStackTraceString CrashInfo("Compilation construction");
293 // FIXME: Handle environment options which affect driver behavior, somewhere
294 // (client?). GCC_EXEC_PREFIX, LPATH, CC_PRINT_OPTIONS.
296 if (char *env = ::getenv("COMPILER_PATH")) {
297 StringRef CompilerPath = env;
298 while (!CompilerPath.empty()) {
299 std::pair<StringRef, StringRef> Split
300 = CompilerPath.split(llvm::sys::EnvPathSeparator);
301 PrefixDirs.push_back(Split.first);
302 CompilerPath = Split.second;
306 // We look for the driver mode option early, because the mode can affect
307 // how other options are parsed.
308 ParseDriverMode(ArgList.slice(1));
310 // FIXME: What are we going to do with -V and -b?
312 // FIXME: This stuff needs to go into the Compilation, not the driver.
313 bool CCCPrintActions;
315 InputArgList *Args = ParseArgStrings(ArgList.slice(1));
317 // -no-canonical-prefixes is used very early in main.
318 Args->ClaimAllArgs(options::OPT_no_canonical_prefixes);
321 Args->ClaimAllArgs(options::OPT_pipe);
323 // Extract -ccc args.
325 // FIXME: We need to figure out where this behavior should live. Most of it
326 // should be outside in the client; the parts that aren't should have proper
327 // options, either by introducing new ones or by overloading gcc ones like -V
329 CCCPrintActions = Args->hasArg(options::OPT_ccc_print_phases);
330 CCCPrintBindings = Args->hasArg(options::OPT_ccc_print_bindings);
331 if (const Arg *A = Args->getLastArg(options::OPT_ccc_gcc_name))
332 CCCGenericGCCName = A->getValue();
333 CCCUsePCH = Args->hasFlag(options::OPT_ccc_pch_is_pch,
334 options::OPT_ccc_pch_is_pth);
335 // FIXME: DefaultTargetTriple is used by the target-prefixed calls to as/ld
336 // and getToolChain is const.
338 // clang-cl targets MSVC-style Win32.
339 llvm::Triple T(DefaultTargetTriple);
340 T.setOS(llvm::Triple::Win32);
341 T.setEnvironment(llvm::Triple::MSVC);
342 DefaultTargetTriple = T.str();
344 if (const Arg *A = Args->getLastArg(options::OPT_target))
345 DefaultTargetTriple = A->getValue();
346 if (const Arg *A = Args->getLastArg(options::OPT_ccc_install_dir))
347 Dir = InstalledDir = A->getValue();
348 for (arg_iterator it = Args->filtered_begin(options::OPT_B),
349 ie = Args->filtered_end(); it != ie; ++it) {
352 PrefixDirs.push_back(A->getValue(0));
354 if (const Arg *A = Args->getLastArg(options::OPT__sysroot_EQ))
355 SysRoot = A->getValue();
356 if (const Arg *A = Args->getLastArg(options::OPT__dyld_prefix_EQ))
357 DyldPrefix = A->getValue();
358 if (Args->hasArg(options::OPT_nostdlib))
361 if (const Arg *A = Args->getLastArg(options::OPT_resource_dir))
362 ResourceDir = A->getValue();
364 // Perform the default argument translations.
365 DerivedArgList *TranslatedArgs = TranslateInputArgs(*Args);
367 // Owned by the host.
368 const ToolChain &TC = getToolChain(*Args);
370 // The compilation takes ownership of Args.
371 Compilation *C = new Compilation(*this, TC, Args, TranslatedArgs);
373 if (!HandleImmediateArgs(*C))
376 // Construct the list of inputs.
378 BuildInputs(C->getDefaultToolChain(), *TranslatedArgs, Inputs);
380 // Construct the list of abstract actions to perform for this compilation. On
381 // MachO targets this uses the driver-driver and universal actions.
382 if (TC.getTriple().isOSBinFormatMachO())
383 BuildUniversalActions(C->getDefaultToolChain(), C->getArgs(),
384 Inputs, C->getActions());
386 BuildActions(C->getDefaultToolChain(), C->getArgs(), Inputs,
389 if (CCCPrintActions) {
399 // When clang crashes, produce diagnostic information including the fully
400 // preprocessed source file(s). Request that the developer attach the
401 // diagnostic information to a bug report.
402 void Driver::generateCompilationDiagnostics(Compilation &C,
403 const Command *FailingCommand) {
404 if (C.getArgs().hasArg(options::OPT_fno_crash_diagnostics))
407 // Don't try to generate diagnostics for link or dsymutil jobs.
408 if (FailingCommand && (FailingCommand->getCreator().isLinkJob() ||
409 FailingCommand->getCreator().isDsymutilJob()))
412 // Print the version of the compiler.
413 PrintVersion(C, llvm::errs());
415 Diag(clang::diag::note_drv_command_failed_diag_msg)
416 << "PLEASE submit a bug report to " BUG_REPORT_URL " and include the "
417 "crash backtrace, preprocessed source, and associated run script.";
419 // Suppress driver output and emit preprocessor output to temp file.
421 CCGenDiagnostics = true;
423 // Save the original job command(s).
425 llvm::raw_string_ostream OS(Cmd);
427 FailingCommand->Print(OS, "\n", /*Quote*/ false, /*CrashReport*/ true);
429 // Crash triggered by FORCE_CLANG_DIAGNOSTICS_CRASH, which doesn't have an
430 // associated FailingCommand, so just pass all jobs.
431 C.getJobs().Print(OS, "\n", /*Quote*/ false, /*CrashReport*/ true);
434 // Keep track of whether we produce any errors while trying to produce
435 // preprocessed sources.
436 DiagnosticErrorTrap Trap(Diags);
438 // Suppress tool output.
439 C.initCompilationForDiagnostics();
441 // Construct the list of inputs.
443 BuildInputs(C.getDefaultToolChain(), C.getArgs(), Inputs);
445 for (InputList::iterator it = Inputs.begin(), ie = Inputs.end(); it != ie;) {
446 bool IgnoreInput = false;
448 // Ignore input from stdin or any inputs that cannot be preprocessed.
449 // Check type first as not all linker inputs have a value.
450 if (types::getPreprocessedType(it->first) == types::TY_INVALID) {
452 } else if (!strcmp(it->second->getValue(), "-")) {
453 Diag(clang::diag::note_drv_command_failed_diag_msg)
454 << "Error generating preprocessed source(s) - ignoring input from stdin"
460 it = Inputs.erase(it);
467 if (Inputs.empty()) {
468 Diag(clang::diag::note_drv_command_failed_diag_msg)
469 << "Error generating preprocessed source(s) - no preprocessable inputs.";
473 // Don't attempt to generate preprocessed files if multiple -arch options are
474 // used, unless they're all duplicates.
475 llvm::StringSet<> ArchNames;
476 for (ArgList::const_iterator it = C.getArgs().begin(), ie = C.getArgs().end();
479 if (A->getOption().matches(options::OPT_arch)) {
480 StringRef ArchName = A->getValue();
481 ArchNames.insert(ArchName);
484 if (ArchNames.size() > 1) {
485 Diag(clang::diag::note_drv_command_failed_diag_msg)
486 << "Error generating preprocessed source(s) - cannot generate "
487 "preprocessed source with multiple -arch options.";
491 // Construct the list of abstract actions to perform for this compilation. On
492 // Darwin OSes this uses the driver-driver and builds universal actions.
493 const ToolChain &TC = C.getDefaultToolChain();
494 if (TC.getTriple().isOSBinFormatMachO())
495 BuildUniversalActions(TC, C.getArgs(), Inputs, C.getActions());
497 BuildActions(TC, C.getArgs(), Inputs, C.getActions());
501 // If there were errors building the compilation, quit now.
502 if (Trap.hasErrorOccurred()) {
503 Diag(clang::diag::note_drv_command_failed_diag_msg)
504 << "Error generating preprocessed source(s).";
508 // Generate preprocessed output.
509 SmallVector<std::pair<int, const Command *>, 4> FailingCommands;
510 C.ExecuteJob(C.getJobs(), FailingCommands);
512 // If the command succeeded, we are done.
513 if (FailingCommands.empty()) {
514 Diag(clang::diag::note_drv_command_failed_diag_msg)
515 << "\n********************\n\n"
516 "PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:\n"
517 "Preprocessed source(s) and associated run script(s) are located at:";
518 ArgStringList Files = C.getTempFiles();
519 for (ArgStringList::const_iterator it = Files.begin(), ie = Files.end();
521 Diag(clang::diag::note_drv_command_failed_diag_msg) << *it;
522 std::string Script = StringRef(*it).rsplit('.').first;
523 // In some cases (modules) we'll dump extra data to help with reproducing
524 // the crash into a directory next to the output.
525 SmallString<128> VFS;
526 if (llvm::sys::fs::exists(Script + ".cache")) {
527 Diag(clang::diag::note_drv_command_failed_diag_msg)
528 << Script + ".cache";
529 VFS = llvm::sys::path::filename(Script + ".cache");
530 llvm::sys::path::append(VFS, "vfs", "vfs.yaml");
535 llvm::raw_fd_ostream ScriptOS(Script.c_str(), Err, llvm::sys::fs::F_Excl);
537 Diag(clang::diag::note_drv_command_failed_diag_msg)
538 << "Error generating run script: " + Script + " " + Err;
540 // Replace the original filename with the preprocessed one.
542 I = Cmd.find("-main-file-name ");
543 assert (I != std::string::npos && "Expected to find -main-file-name");
545 E = Cmd.find(" ", I);
546 assert (E != std::string::npos && "-main-file-name missing argument?");
547 StringRef OldFilename = StringRef(Cmd).slice(I, E);
548 StringRef NewFilename = llvm::sys::path::filename(*it);
549 I = StringRef(Cmd).rfind(OldFilename);
550 E = I + OldFilename.size();
551 I = Cmd.rfind(" ", I) + 1;
552 Cmd.replace(I, E - I, NewFilename.data(), NewFilename.size());
554 // Add the VFS overlay to the reproduction script.
555 I += NewFilename.size();
556 Cmd.insert(I, std::string(" -ivfsoverlay ") + VFS.c_str());
559 Diag(clang::diag::note_drv_command_failed_diag_msg) << Script;
562 Diag(clang::diag::note_drv_command_failed_diag_msg)
563 << "\n\n********************";
565 // Failure, remove preprocessed files.
566 if (!C.getArgs().hasArg(options::OPT_save_temps))
567 C.CleanupFileList(C.getTempFiles(), true);
569 Diag(clang::diag::note_drv_command_failed_diag_msg)
570 << "Error generating preprocessed source(s).";
574 int Driver::ExecuteCompilation(const Compilation &C,
575 SmallVectorImpl< std::pair<int, const Command *> > &FailingCommands) const {
576 // Just print if -### was present.
577 if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) {
578 C.getJobs().Print(llvm::errs(), "\n", true);
582 // If there were errors building the compilation, quit now.
583 if (Diags.hasErrorOccurred())
586 C.ExecuteJob(C.getJobs(), FailingCommands);
588 // Remove temp files.
589 C.CleanupFileList(C.getTempFiles());
591 // If the command succeeded, we are done.
592 if (FailingCommands.empty())
595 // Otherwise, remove result files and print extra information about abnormal
597 for (SmallVectorImpl< std::pair<int, const Command *> >::iterator it =
598 FailingCommands.begin(), ie = FailingCommands.end(); it != ie; ++it) {
600 const Command *FailingCommand = it->second;
602 // Remove result files if we're not saving temps.
603 if (!C.getArgs().hasArg(options::OPT_save_temps)) {
604 const JobAction *JA = cast<JobAction>(&FailingCommand->getSource());
605 C.CleanupFileMap(C.getResultFiles(), JA, true);
607 // Failure result files are valid unless we crashed.
609 C.CleanupFileMap(C.getFailureResultFiles(), JA, true);
612 // Print extra information about abnormal failures, if possible.
614 // This is ad-hoc, but we don't want to be excessively noisy. If the result
615 // status was 1, assume the command failed normally. In particular, if it
616 // was the compiler then assume it gave a reasonable error code. Failures
617 // in other tools are less common, and they generally have worse
618 // diagnostics, so always print the diagnostic there.
619 const Tool &FailingTool = FailingCommand->getCreator();
621 if (!FailingCommand->getCreator().hasGoodDiagnostics() || Res != 1) {
622 // FIXME: See FIXME above regarding result code interpretation.
624 Diag(clang::diag::err_drv_command_signalled)
625 << FailingTool.getShortName();
627 Diag(clang::diag::err_drv_command_failed)
628 << FailingTool.getShortName() << Res;
634 void Driver::PrintHelp(bool ShowHidden) const {
635 unsigned IncludedFlagsBitmask;
636 unsigned ExcludedFlagsBitmask;
637 std::tie(IncludedFlagsBitmask, ExcludedFlagsBitmask) =
638 getIncludeExcludeOptionFlagMasks();
640 ExcludedFlagsBitmask |= options::NoDriverOption;
642 ExcludedFlagsBitmask |= HelpHidden;
644 getOpts().PrintHelp(llvm::outs(), Name.c_str(), DriverTitle.c_str(),
645 IncludedFlagsBitmask, ExcludedFlagsBitmask);
648 void Driver::PrintVersion(const Compilation &C, raw_ostream &OS) const {
649 // FIXME: The following handlers should use a callback mechanism, we don't
650 // know what the client would like to do.
651 OS << getClangFullVersion() << '\n';
652 const ToolChain &TC = C.getDefaultToolChain();
653 OS << "Target: " << TC.getTripleString() << '\n';
655 // Print the threading model.
657 // FIXME: Implement correctly.
658 OS << "Thread model: " << "posix" << '\n';
661 /// PrintDiagnosticCategories - Implement the --print-diagnostic-categories
663 static void PrintDiagnosticCategories(raw_ostream &OS) {
664 // Skip the empty category.
665 for (unsigned i = 1, max = DiagnosticIDs::getNumberOfCategories();
667 OS << i << ',' << DiagnosticIDs::getCategoryNameFromID(i) << '\n';
670 bool Driver::HandleImmediateArgs(const Compilation &C) {
671 // The order these options are handled in gcc is all over the place, but we
672 // don't expect inconsistencies w.r.t. that to matter in practice.
674 if (C.getArgs().hasArg(options::OPT_dumpmachine)) {
675 llvm::outs() << C.getDefaultToolChain().getTripleString() << '\n';
679 if (C.getArgs().hasArg(options::OPT_dumpversion)) {
680 // Since -dumpversion is only implemented for pedantic GCC compatibility, we
681 // return an answer which matches our definition of __VERSION__.
683 // If we want to return a more correct answer some day, then we should
684 // introduce a non-pedantically GCC compatible mode to Clang in which we
685 // provide sensible definitions for -dumpversion, __VERSION__, etc.
686 llvm::outs() << "4.2.1\n";
690 if (C.getArgs().hasArg(options::OPT__print_diagnostic_categories)) {
691 PrintDiagnosticCategories(llvm::outs());
695 if (C.getArgs().hasArg(options::OPT_help) ||
696 C.getArgs().hasArg(options::OPT__help_hidden)) {
697 PrintHelp(C.getArgs().hasArg(options::OPT__help_hidden));
701 if (C.getArgs().hasArg(options::OPT__version)) {
702 // Follow gcc behavior and use stdout for --version and stderr for -v.
703 PrintVersion(C, llvm::outs());
707 if (C.getArgs().hasArg(options::OPT_v) ||
708 C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) {
709 PrintVersion(C, llvm::errs());
710 SuppressMissingInputWarning = true;
713 const ToolChain &TC = C.getDefaultToolChain();
715 if (C.getArgs().hasArg(options::OPT_v))
716 TC.printVerboseInfo(llvm::errs());
718 if (C.getArgs().hasArg(options::OPT_print_search_dirs)) {
719 llvm::outs() << "programs: =";
720 for (ToolChain::path_list::const_iterator it = TC.getProgramPaths().begin(),
721 ie = TC.getProgramPaths().end(); it != ie; ++it) {
722 if (it != TC.getProgramPaths().begin())
726 llvm::outs() << "\n";
727 llvm::outs() << "libraries: =" << ResourceDir;
729 StringRef sysroot = C.getSysRoot();
731 for (ToolChain::path_list::const_iterator it = TC.getFilePaths().begin(),
732 ie = TC.getFilePaths().end(); it != ie; ++it) {
734 const char *path = it->c_str();
736 llvm::outs() << sysroot << path + 1;
738 llvm::outs() << path;
740 llvm::outs() << "\n";
744 // FIXME: The following handlers should use a callback mechanism, we don't
745 // know what the client would like to do.
746 if (Arg *A = C.getArgs().getLastArg(options::OPT_print_file_name_EQ)) {
747 llvm::outs() << GetFilePath(A->getValue(), TC) << "\n";
751 if (Arg *A = C.getArgs().getLastArg(options::OPT_print_prog_name_EQ)) {
752 llvm::outs() << GetProgramPath(A->getValue(), TC) << "\n";
756 if (C.getArgs().hasArg(options::OPT_print_libgcc_file_name)) {
757 llvm::outs() << GetFilePath("libgcc.a", TC) << "\n";
761 if (C.getArgs().hasArg(options::OPT_print_multi_lib)) {
762 const MultilibSet &Multilibs = TC.getMultilibs();
764 for (MultilibSet::const_iterator I = Multilibs.begin(), E = Multilibs.end();
766 llvm::outs() << *I << "\n";
771 if (C.getArgs().hasArg(options::OPT_print_multi_directory)) {
772 const MultilibSet &Multilibs = TC.getMultilibs();
773 for (MultilibSet::const_iterator I = Multilibs.begin(), E = Multilibs.end();
775 if (I->gccSuffix().empty())
776 llvm::outs() << ".\n";
778 StringRef Suffix(I->gccSuffix());
779 assert(Suffix.front() == '/');
780 llvm::outs() << Suffix.substr(1) << "\n";
786 if (C.getArgs().hasArg(options::OPT_print_multi_os_directory)) {
787 // FIXME: This should print out "lib/../lib", "lib/../lib64", or
788 // "lib/../lib32" as appropriate for the toolchain. For now, print
789 // nothing because it's not supported yet.
796 static unsigned PrintActions1(const Compilation &C, Action *A,
797 std::map<Action*, unsigned> &Ids) {
802 llvm::raw_string_ostream os(str);
804 os << Action::getClassName(A->getKind()) << ", ";
805 if (InputAction *IA = dyn_cast<InputAction>(A)) {
806 os << "\"" << IA->getInputArg().getValue() << "\"";
807 } else if (BindArchAction *BIA = dyn_cast<BindArchAction>(A)) {
808 os << '"' << BIA->getArchName() << '"'
809 << ", {" << PrintActions1(C, *BIA->begin(), Ids) << "}";
812 for (Action::iterator it = A->begin(), ie = A->end(); it != ie;) {
813 os << PrintActions1(C, *it, Ids);
821 unsigned Id = Ids.size();
823 llvm::errs() << Id << ": " << os.str() << ", "
824 << types::getTypeName(A->getType()) << "\n";
829 void Driver::PrintActions(const Compilation &C) const {
830 std::map<Action*, unsigned> Ids;
831 for (ActionList::const_iterator it = C.getActions().begin(),
832 ie = C.getActions().end(); it != ie; ++it)
833 PrintActions1(C, *it, Ids);
836 /// \brief Check whether the given input tree contains any compilation or
837 /// assembly actions.
838 static bool ContainsCompileOrAssembleAction(const Action *A) {
839 if (isa<CompileJobAction>(A) || isa<AssembleJobAction>(A))
842 for (Action::const_iterator it = A->begin(), ie = A->end(); it != ie; ++it)
843 if (ContainsCompileOrAssembleAction(*it))
849 void Driver::BuildUniversalActions(const ToolChain &TC,
850 DerivedArgList &Args,
851 const InputList &BAInputs,
852 ActionList &Actions) const {
853 llvm::PrettyStackTraceString CrashInfo("Building universal build actions");
854 // Collect the list of architectures. Duplicates are allowed, but should only
855 // be handled once (in the order seen).
856 llvm::StringSet<> ArchNames;
857 SmallVector<const char *, 4> Archs;
858 for (ArgList::const_iterator it = Args.begin(), ie = Args.end();
862 if (A->getOption().matches(options::OPT_arch)) {
863 // Validate the option here; we don't save the type here because its
864 // particular spelling may participate in other driver choices.
865 llvm::Triple::ArchType Arch =
866 tools::darwin::getArchTypeForMachOArchName(A->getValue());
867 if (Arch == llvm::Triple::UnknownArch) {
868 Diag(clang::diag::err_drv_invalid_arch_name)
869 << A->getAsString(Args);
874 if (ArchNames.insert(A->getValue()))
875 Archs.push_back(A->getValue());
879 // When there is no explicit arch for this platform, make sure we still bind
880 // the architecture (to the default) so that -Xarch_ is handled correctly.
882 Archs.push_back(Args.MakeArgString(TC.getDefaultUniversalArchName()));
884 ActionList SingleActions;
885 BuildActions(TC, Args, BAInputs, SingleActions);
887 // Add in arch bindings for every top level action, as well as lipo and
888 // dsymutil steps if needed.
889 for (unsigned i = 0, e = SingleActions.size(); i != e; ++i) {
890 Action *Act = SingleActions[i];
892 // Make sure we can lipo this kind of output. If not (and it is an actual
893 // output) then we disallow, since we can't create an output file with the
894 // right name without overwriting it. We could remove this oddity by just
895 // changing the output names to include the arch, which would also fix
896 // -save-temps. Compatibility wins for now.
898 if (Archs.size() > 1 && !types::canLipoType(Act->getType()))
899 Diag(clang::diag::err_drv_invalid_output_with_multiple_archs)
900 << types::getTypeName(Act->getType());
903 for (unsigned i = 0, e = Archs.size(); i != e; ++i) {
904 Inputs.push_back(new BindArchAction(Act, Archs[i]));
906 Inputs.back()->setOwnsInputs(false);
909 // Lipo if necessary, we do it this way because we need to set the arch flag
910 // so that -Xarch_ gets overwritten.
911 if (Inputs.size() == 1 || Act->getType() == types::TY_Nothing)
912 Actions.append(Inputs.begin(), Inputs.end());
914 Actions.push_back(new LipoJobAction(Inputs, Act->getType()));
916 // Handle debug info queries.
917 Arg *A = Args.getLastArg(options::OPT_g_Group);
918 if (A && !A->getOption().matches(options::OPT_g0) &&
919 !A->getOption().matches(options::OPT_gstabs) &&
920 ContainsCompileOrAssembleAction(Actions.back())) {
922 // Add a 'dsymutil' step if necessary, when debug info is enabled and we
923 // have a compile input. We need to run 'dsymutil' ourselves in such cases
924 // because the debug info will refer to a temporary object file which
925 // will be removed at the end of the compilation process.
926 if (Act->getType() == types::TY_Image) {
928 Inputs.push_back(Actions.back());
930 Actions.push_back(new DsymutilJobAction(Inputs, types::TY_dSYM));
933 // Verify the debug info output.
934 if (Args.hasArg(options::OPT_verify_debug_info)) {
935 Action *VerifyInput = Actions.back();
937 Actions.push_back(new VerifyDebugInfoJobAction(VerifyInput,
944 /// \brief Check that the file referenced by Value exists. If it doesn't,
945 /// issue a diagnostic and return false.
946 static bool DiagnoseInputExistence(const Driver &D, const DerivedArgList &Args,
948 if (!D.getCheckInputsExist())
951 // stdin always exists.
955 SmallString<64> Path(Value);
956 if (Arg *WorkDir = Args.getLastArg(options::OPT_working_directory)) {
957 if (!llvm::sys::path::is_absolute(Path.str())) {
958 SmallString<64> Directory(WorkDir->getValue());
959 llvm::sys::path::append(Directory, Value);
960 Path.assign(Directory);
964 if (llvm::sys::fs::exists(Twine(Path)))
967 if (D.IsCLMode() && llvm::sys::Process::FindInEnvPath("LIB", Value))
970 D.Diag(clang::diag::err_drv_no_such_file) << Path.str();
974 // Construct a the list of inputs and their types.
975 void Driver::BuildInputs(const ToolChain &TC, DerivedArgList &Args,
976 InputList &Inputs) const {
977 // Track the current user specified (-x) input. We also explicitly track the
978 // argument used to set the type; we only want to claim the type when we
979 // actually use it, so we warn about unused -x arguments.
980 types::ID InputType = types::TY_Nothing;
981 Arg *InputTypeArg = nullptr;
983 // The last /TC or /TP option sets the input type to C or C++ globally.
984 if (Arg *TCTP = Args.getLastArg(options::OPT__SLASH_TC,
985 options::OPT__SLASH_TP)) {
987 InputType = TCTP->getOption().matches(options::OPT__SLASH_TC)
988 ? types::TY_C : types::TY_CXX;
990 arg_iterator it = Args.filtered_begin(options::OPT__SLASH_TC,
991 options::OPT__SLASH_TP);
992 const arg_iterator ie = Args.filtered_end();
993 Arg *Previous = *it++;
994 bool ShowNote = false;
996 Diag(clang::diag::warn_drv_overriding_flag_option)
997 << Previous->getSpelling() << (*it)->getSpelling();
1002 Diag(clang::diag::note_drv_t_option_is_global);
1004 // No driver mode exposes -x and /TC or /TP; we don't support mixing them.
1005 assert(!Args.hasArg(options::OPT_x) && "-x and /TC or /TP is not allowed");
1008 for (ArgList::const_iterator it = Args.begin(), ie = Args.end();
1012 if (A->getOption().getKind() == Option::InputClass) {
1013 const char *Value = A->getValue();
1014 types::ID Ty = types::TY_INVALID;
1016 // Infer the input type if necessary.
1017 if (InputType == types::TY_Nothing) {
1018 // If there was an explicit arg for this, claim it.
1020 InputTypeArg->claim();
1022 // stdin must be handled specially.
1023 if (memcmp(Value, "-", 2) == 0) {
1024 // If running with -E, treat as a C input (this changes the builtin
1025 // macros, for example). This may be overridden by -ObjC below.
1027 // Otherwise emit an error but still use a valid type to avoid
1028 // spurious errors (e.g., no inputs).
1029 if (!Args.hasArgNoClaim(options::OPT_E) && !CCCIsCPP())
1030 Diag(IsCLMode() ? clang::diag::err_drv_unknown_stdin_type_clang_cl
1031 : clang::diag::err_drv_unknown_stdin_type);
1034 // Otherwise lookup by extension.
1035 // Fallback is C if invoked as C preprocessor or Object otherwise.
1036 // We use a host hook here because Darwin at least has its own
1037 // idea of what .s is.
1038 if (const char *Ext = strrchr(Value, '.'))
1039 Ty = TC.LookupTypeForExtension(Ext + 1);
1041 if (Ty == types::TY_INVALID) {
1045 Ty = types::TY_Object;
1048 // If the driver is invoked as C++ compiler (like clang++ or c++) it
1049 // should autodetect some input files as C++ for g++ compatibility.
1051 types::ID OldTy = Ty;
1052 Ty = types::lookupCXXTypeForCType(Ty);
1055 Diag(clang::diag::warn_drv_treating_input_as_cxx)
1056 << getTypeName(OldTy) << getTypeName(Ty);
1060 // -ObjC and -ObjC++ override the default language, but only for "source
1061 // files". We just treat everything that isn't a linker input as a
1064 // FIXME: Clean this up if we move the phase sequence into the type.
1065 if (Ty != types::TY_Object) {
1066 if (Args.hasArg(options::OPT_ObjC))
1067 Ty = types::TY_ObjC;
1068 else if (Args.hasArg(options::OPT_ObjCXX))
1069 Ty = types::TY_ObjCXX;
1072 assert(InputTypeArg && "InputType set w/o InputTypeArg");
1073 InputTypeArg->claim();
1077 if (DiagnoseInputExistence(*this, Args, Value))
1078 Inputs.push_back(std::make_pair(Ty, A));
1080 } else if (A->getOption().matches(options::OPT__SLASH_Tc)) {
1081 StringRef Value = A->getValue();
1082 if (DiagnoseInputExistence(*this, Args, Value)) {
1083 Arg *InputArg = MakeInputArg(Args, Opts, A->getValue());
1084 Inputs.push_back(std::make_pair(types::TY_C, InputArg));
1087 } else if (A->getOption().matches(options::OPT__SLASH_Tp)) {
1088 StringRef Value = A->getValue();
1089 if (DiagnoseInputExistence(*this, Args, Value)) {
1090 Arg *InputArg = MakeInputArg(Args, Opts, A->getValue());
1091 Inputs.push_back(std::make_pair(types::TY_CXX, InputArg));
1094 } else if (A->getOption().hasFlag(options::LinkerInput)) {
1095 // Just treat as object type, we could make a special type for this if
1097 Inputs.push_back(std::make_pair(types::TY_Object, A));
1099 } else if (A->getOption().matches(options::OPT_x)) {
1101 InputType = types::lookupTypeForTypeSpecifier(A->getValue());
1104 // Follow gcc behavior and treat as linker input for invalid -x
1105 // options. Its not clear why we shouldn't just revert to unknown; but
1106 // this isn't very important, we might as well be bug compatible.
1108 Diag(clang::diag::err_drv_unknown_language) << A->getValue();
1109 InputType = types::TY_Object;
1113 if (CCCIsCPP() && Inputs.empty()) {
1114 // If called as standalone preprocessor, stdin is processed
1115 // if no other input is present.
1116 Arg *A = MakeInputArg(Args, Opts, "-");
1117 Inputs.push_back(std::make_pair(types::TY_C, A));
1121 void Driver::BuildActions(const ToolChain &TC, DerivedArgList &Args,
1122 const InputList &Inputs, ActionList &Actions) const {
1123 llvm::PrettyStackTraceString CrashInfo("Building compilation actions");
1125 if (!SuppressMissingInputWarning && Inputs.empty()) {
1126 Diag(clang::diag::err_drv_no_input_files);
1131 phases::ID FinalPhase = getFinalPhase(Args, &FinalPhaseArg);
1133 if (FinalPhase == phases::Link && Args.hasArg(options::OPT_emit_llvm)) {
1134 Diag(clang::diag::err_drv_emit_llvm_link);
1137 // Reject -Z* at the top level, these options should never have been exposed
1139 if (Arg *A = Args.getLastArg(options::OPT_Z_Joined))
1140 Diag(clang::diag::err_drv_use_of_Z_option) << A->getAsString(Args);
1142 // Diagnose misuse of /Fo.
1143 if (Arg *A = Args.getLastArg(options::OPT__SLASH_Fo)) {
1144 StringRef V = A->getValue();
1146 // It has to have a value.
1147 Diag(clang::diag::err_drv_missing_argument) << A->getSpelling() << 1;
1148 Args.eraseArg(options::OPT__SLASH_Fo);
1149 } else if (Inputs.size() > 1 && !llvm::sys::path::is_separator(V.back())) {
1150 // Check whether /Fo tries to name an output file for multiple inputs.
1151 Diag(clang::diag::err_drv_out_file_argument_with_multiple_sources)
1152 << A->getSpelling() << V;
1153 Args.eraseArg(options::OPT__SLASH_Fo);
1157 // Diagnose misuse of /Fa.
1158 if (Arg *A = Args.getLastArg(options::OPT__SLASH_Fa)) {
1159 StringRef V = A->getValue();
1160 if (Inputs.size() > 1 && !llvm::sys::path::is_separator(V.back())) {
1161 // Check whether /Fa tries to name an asm file for multiple inputs.
1162 Diag(clang::diag::err_drv_out_file_argument_with_multiple_sources)
1163 << A->getSpelling() << V;
1164 Args.eraseArg(options::OPT__SLASH_Fa);
1168 // Diagnose misuse of /Fe.
1169 if (Arg *A = Args.getLastArg(options::OPT__SLASH_Fe)) {
1170 if (A->getValue()[0] == '\0') {
1171 // It has to have a value.
1172 Diag(clang::diag::err_drv_missing_argument) << A->getSpelling() << 1;
1173 Args.eraseArg(options::OPT__SLASH_Fe);
1177 // Construct the actions to perform.
1178 ActionList LinkerInputs;
1180 llvm::SmallVector<phases::ID, phases::MaxNumberOfPhases> PL;
1181 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1182 types::ID InputType = Inputs[i].first;
1183 const Arg *InputArg = Inputs[i].second;
1186 types::getCompilationPhases(InputType, PL);
1188 // If the first step comes after the final phase we are doing as part of
1189 // this compilation, warn the user about it.
1190 phases::ID InitialPhase = PL[0];
1191 if (InitialPhase > FinalPhase) {
1192 // Claim here to avoid the more general unused warning.
1195 // Suppress all unused style warnings with -Qunused-arguments
1196 if (Args.hasArg(options::OPT_Qunused_arguments))
1199 // Special case when final phase determined by binary name, rather than
1200 // by a command-line argument with a corresponding Arg.
1202 Diag(clang::diag::warn_drv_input_file_unused_by_cpp)
1203 << InputArg->getAsString(Args)
1204 << getPhaseName(InitialPhase);
1205 // Special case '-E' warning on a previously preprocessed file to make
1207 else if (InitialPhase == phases::Compile &&
1208 FinalPhase == phases::Preprocess &&
1209 getPreprocessedType(InputType) == types::TY_INVALID)
1210 Diag(clang::diag::warn_drv_preprocessed_input_file_unused)
1211 << InputArg->getAsString(Args)
1213 << (FinalPhaseArg ? FinalPhaseArg->getOption().getName() : "");
1215 Diag(clang::diag::warn_drv_input_file_unused)
1216 << InputArg->getAsString(Args)
1217 << getPhaseName(InitialPhase)
1219 << (FinalPhaseArg ? FinalPhaseArg->getOption().getName() : "");
1223 // Build the pipeline for this file.
1224 std::unique_ptr<Action> Current(new InputAction(*InputArg, InputType));
1225 for (SmallVectorImpl<phases::ID>::iterator
1226 i = PL.begin(), e = PL.end(); i != e; ++i) {
1227 phases::ID Phase = *i;
1229 // We are done if this step is past what the user requested.
1230 if (Phase > FinalPhase)
1233 // Queue linker inputs.
1234 if (Phase == phases::Link) {
1235 assert((i + 1) == e && "linking must be final compilation step.");
1236 LinkerInputs.push_back(Current.release());
1240 // Some types skip the assembler phase (e.g., llvm-bc), but we can't
1241 // encode this in the steps because the intermediate type depends on
1242 // arguments. Just special case here.
1243 if (Phase == phases::Assemble && Current->getType() != types::TY_PP_Asm)
1246 // Otherwise construct the appropriate action.
1247 Current.reset(ConstructPhaseAction(Args, Phase, Current.release()));
1248 if (Current->getType() == types::TY_Nothing)
1252 // If we ended with something, add to the output list.
1254 Actions.push_back(Current.release());
1257 // Add a link action if necessary.
1258 if (!LinkerInputs.empty())
1259 Actions.push_back(new LinkJobAction(LinkerInputs, types::TY_Image));
1261 // If we are linking, claim any options which are obviously only used for
1263 if (FinalPhase == phases::Link && PL.size() == 1) {
1264 Args.ClaimAllArgs(options::OPT_CompileOnly_Group);
1265 Args.ClaimAllArgs(options::OPT_cl_compile_Group);
1268 // Claim ignored clang-cl options.
1269 Args.ClaimAllArgs(options::OPT_cl_ignored_Group);
1272 Action *Driver::ConstructPhaseAction(const ArgList &Args, phases::ID Phase,
1273 Action *Input) const {
1274 llvm::PrettyStackTraceString CrashInfo("Constructing phase actions");
1275 // Build the appropriate action.
1277 case phases::Link: llvm_unreachable("link action invalid here.");
1278 case phases::Preprocess: {
1280 // -{M, MM} alter the output type.
1281 if (Args.hasArg(options::OPT_M, options::OPT_MM)) {
1282 OutputTy = types::TY_Dependencies;
1284 OutputTy = Input->getType();
1285 if (!Args.hasFlag(options::OPT_frewrite_includes,
1286 options::OPT_fno_rewrite_includes, false) &&
1288 OutputTy = types::getPreprocessedType(OutputTy);
1289 assert(OutputTy != types::TY_INVALID &&
1290 "Cannot preprocess this input type!");
1292 return new PreprocessJobAction(Input, OutputTy);
1294 case phases::Precompile: {
1295 types::ID OutputTy = types::TY_PCH;
1296 if (Args.hasArg(options::OPT_fsyntax_only)) {
1297 // Syntax checks should not emit a PCH file
1298 OutputTy = types::TY_Nothing;
1300 return new PrecompileJobAction(Input, OutputTy);
1302 case phases::Compile: {
1303 if (Args.hasArg(options::OPT_fsyntax_only)) {
1304 return new CompileJobAction(Input, types::TY_Nothing);
1305 } else if (Args.hasArg(options::OPT_rewrite_objc)) {
1306 return new CompileJobAction(Input, types::TY_RewrittenObjC);
1307 } else if (Args.hasArg(options::OPT_rewrite_legacy_objc)) {
1308 return new CompileJobAction(Input, types::TY_RewrittenLegacyObjC);
1309 } else if (Args.hasArg(options::OPT__analyze, options::OPT__analyze_auto)) {
1310 return new AnalyzeJobAction(Input, types::TY_Plist);
1311 } else if (Args.hasArg(options::OPT__migrate)) {
1312 return new MigrateJobAction(Input, types::TY_Remap);
1313 } else if (Args.hasArg(options::OPT_emit_ast)) {
1314 return new CompileJobAction(Input, types::TY_AST);
1315 } else if (Args.hasArg(options::OPT_module_file_info)) {
1316 return new CompileJobAction(Input, types::TY_ModuleFile);
1317 } else if (Args.hasArg(options::OPT_verify_pch)) {
1318 return new VerifyPCHJobAction(Input, types::TY_Nothing);
1319 } else if (IsUsingLTO(Args)) {
1321 Args.hasArg(options::OPT_S) ? types::TY_LTO_IR : types::TY_LTO_BC;
1322 return new CompileJobAction(Input, Output);
1323 } else if (Args.hasArg(options::OPT_emit_llvm)) {
1325 Args.hasArg(options::OPT_S) ? types::TY_LLVM_IR : types::TY_LLVM_BC;
1326 return new CompileJobAction(Input, Output);
1328 return new CompileJobAction(Input, types::TY_PP_Asm);
1331 case phases::Assemble:
1332 return new AssembleJobAction(Input, types::TY_Object);
1335 llvm_unreachable("invalid phase in ConstructPhaseAction");
1338 bool Driver::IsUsingLTO(const ArgList &Args) const {
1339 if (Args.hasFlag(options::OPT_flto, options::OPT_fno_lto, false))
1345 void Driver::BuildJobs(Compilation &C) const {
1346 llvm::PrettyStackTraceString CrashInfo("Building compilation jobs");
1348 Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o);
1350 // It is an error to provide a -o option if we are making multiple output
1353 unsigned NumOutputs = 0;
1354 for (ActionList::const_iterator it = C.getActions().begin(),
1355 ie = C.getActions().end(); it != ie; ++it)
1356 if ((*it)->getType() != types::TY_Nothing)
1359 if (NumOutputs > 1) {
1360 Diag(clang::diag::err_drv_output_argument_with_multiple_files);
1361 FinalOutput = nullptr;
1365 // Collect the list of architectures.
1366 llvm::StringSet<> ArchNames;
1367 if (C.getDefaultToolChain().getTriple().isOSBinFormatMachO()) {
1368 for (ArgList::const_iterator it = C.getArgs().begin(), ie = C.getArgs().end();
1371 if (A->getOption().matches(options::OPT_arch))
1372 ArchNames.insert(A->getValue());
1376 for (ActionList::const_iterator it = C.getActions().begin(),
1377 ie = C.getActions().end(); it != ie; ++it) {
1380 // If we are linking an image for multiple archs then the linker wants
1381 // -arch_multiple and -final_output <final image name>. Unfortunately, this
1382 // doesn't fit in cleanly because we have to pass this information down.
1384 // FIXME: This is a hack; find a cleaner way to integrate this into the
1386 const char *LinkingOutput = nullptr;
1387 if (isa<LipoJobAction>(A)) {
1389 LinkingOutput = FinalOutput->getValue();
1391 LinkingOutput = DefaultImageName.c_str();
1395 BuildJobsForAction(C, A, &C.getDefaultToolChain(),
1396 /*BoundArch*/nullptr,
1397 /*AtTopLevel*/ true,
1398 /*MultipleArchs*/ ArchNames.size() > 1,
1399 /*LinkingOutput*/ LinkingOutput,
1403 // If the user passed -Qunused-arguments or there were errors, don't warn
1404 // about any unused arguments.
1405 if (Diags.hasErrorOccurred() ||
1406 C.getArgs().hasArg(options::OPT_Qunused_arguments))
1410 (void) C.getArgs().hasArg(options::OPT__HASH_HASH_HASH);
1412 // Claim --driver-mode, it was handled earlier.
1413 (void) C.getArgs().hasArg(options::OPT_driver_mode);
1415 for (ArgList::const_iterator it = C.getArgs().begin(), ie = C.getArgs().end();
1419 // FIXME: It would be nice to be able to send the argument to the
1420 // DiagnosticsEngine, so that extra values, position, and so on could be
1422 if (!A->isClaimed()) {
1423 if (A->getOption().hasFlag(options::NoArgumentUnused))
1426 // Suppress the warning automatically if this is just a flag, and it is an
1427 // instance of an argument we already claimed.
1428 const Option &Opt = A->getOption();
1429 if (Opt.getKind() == Option::FlagClass) {
1430 bool DuplicateClaimed = false;
1432 for (arg_iterator it = C.getArgs().filtered_begin(&Opt),
1433 ie = C.getArgs().filtered_end(); it != ie; ++it) {
1434 if ((*it)->isClaimed()) {
1435 DuplicateClaimed = true;
1440 if (DuplicateClaimed)
1444 Diag(clang::diag::warn_drv_unused_argument)
1445 << A->getAsString(C.getArgs());
1450 static const Tool *SelectToolForJob(Compilation &C, const ToolChain *TC,
1451 const JobAction *JA,
1452 const ActionList *&Inputs) {
1453 const Tool *ToolForJob = nullptr;
1455 // See if we should look for a compiler with an integrated assembler. We match
1456 // bottom up, so what we are actually looking for is an assembler job with a
1459 if (TC->useIntegratedAs() &&
1460 !C.getArgs().hasArg(options::OPT_save_temps) &&
1461 !C.getArgs().hasArg(options::OPT_via_file_asm) &&
1462 !C.getArgs().hasArg(options::OPT__SLASH_FA) &&
1463 !C.getArgs().hasArg(options::OPT__SLASH_Fa) &&
1464 isa<AssembleJobAction>(JA) &&
1465 Inputs->size() == 1 && isa<CompileJobAction>(*Inputs->begin())) {
1466 const Tool *Compiler =
1467 TC->SelectTool(cast<JobAction>(**Inputs->begin()));
1470 if (Compiler->hasIntegratedAssembler()) {
1471 Inputs = &(*Inputs)[0]->getInputs();
1472 ToolForJob = Compiler;
1476 // Otherwise use the tool for the current job.
1478 ToolForJob = TC->SelectTool(*JA);
1480 // See if we should use an integrated preprocessor. We do so when we have
1481 // exactly one input, since this is the only use case we care about
1482 // (irrelevant since we don't support combine yet).
1483 if (Inputs->size() == 1 && isa<PreprocessJobAction>(*Inputs->begin()) &&
1484 !C.getArgs().hasArg(options::OPT_no_integrated_cpp) &&
1485 !C.getArgs().hasArg(options::OPT_traditional_cpp) &&
1486 !C.getArgs().hasArg(options::OPT_save_temps) &&
1487 !C.getArgs().hasArg(options::OPT_rewrite_objc) &&
1488 ToolForJob->hasIntegratedCPP())
1489 Inputs = &(*Inputs)[0]->getInputs();
1494 void Driver::BuildJobsForAction(Compilation &C,
1496 const ToolChain *TC,
1497 const char *BoundArch,
1500 const char *LinkingOutput,
1501 InputInfo &Result) const {
1502 llvm::PrettyStackTraceString CrashInfo("Building compilation jobs");
1504 if (const InputAction *IA = dyn_cast<InputAction>(A)) {
1505 // FIXME: It would be nice to not claim this here; maybe the old scheme of
1506 // just using Args was better?
1507 const Arg &Input = IA->getInputArg();
1509 if (Input.getOption().matches(options::OPT_INPUT)) {
1510 const char *Name = Input.getValue();
1511 Result = InputInfo(Name, A->getType(), Name);
1513 Result = InputInfo(&Input, A->getType(), "");
1517 if (const BindArchAction *BAA = dyn_cast<BindArchAction>(A)) {
1518 const ToolChain *TC;
1519 const char *ArchName = BAA->getArchName();
1522 TC = &getToolChain(C.getArgs(), ArchName);
1524 TC = &C.getDefaultToolChain();
1526 BuildJobsForAction(C, *BAA->begin(), TC, BAA->getArchName(),
1527 AtTopLevel, MultipleArchs, LinkingOutput, Result);
1531 const ActionList *Inputs = &A->getInputs();
1533 const JobAction *JA = cast<JobAction>(A);
1534 const Tool *T = SelectToolForJob(C, TC, JA, Inputs);
1538 // Only use pipes when there is exactly one input.
1539 InputInfoList InputInfos;
1540 for (ActionList::const_iterator it = Inputs->begin(), ie = Inputs->end();
1542 // Treat dsymutil and verify sub-jobs as being at the top-level too, they
1543 // shouldn't get temporary output names.
1544 // FIXME: Clean this up.
1545 bool SubJobAtTopLevel = false;
1546 if (AtTopLevel && (isa<DsymutilJobAction>(A) || isa<VerifyJobAction>(A)))
1547 SubJobAtTopLevel = true;
1550 BuildJobsForAction(C, *it, TC, BoundArch, SubJobAtTopLevel, MultipleArchs,
1552 InputInfos.push_back(II);
1555 // Always use the first input as the base input.
1556 const char *BaseInput = InputInfos[0].getBaseInput();
1558 // ... except dsymutil actions, which use their actual input as the base
1560 if (JA->getType() == types::TY_dSYM)
1561 BaseInput = InputInfos[0].getFilename();
1563 // Determine the place to write output to, if any.
1564 if (JA->getType() == types::TY_Nothing)
1565 Result = InputInfo(A->getType(), BaseInput);
1567 Result = InputInfo(GetNamedOutputPath(C, *JA, BaseInput, BoundArch,
1568 AtTopLevel, MultipleArchs),
1569 A->getType(), BaseInput);
1571 if (CCCPrintBindings && !CCGenDiagnostics) {
1572 llvm::errs() << "# \"" << T->getToolChain().getTripleString() << '"'
1573 << " - \"" << T->getName() << "\", inputs: [";
1574 for (unsigned i = 0, e = InputInfos.size(); i != e; ++i) {
1575 llvm::errs() << InputInfos[i].getAsString();
1577 llvm::errs() << ", ";
1579 llvm::errs() << "], output: " << Result.getAsString() << "\n";
1581 T->ConstructJob(C, *JA, Result, InputInfos,
1582 C.getArgsForToolChain(TC, BoundArch), LinkingOutput);
1586 /// \brief Create output filename based on ArgValue, which could either be a
1587 /// full filename, filename without extension, or a directory. If ArgValue
1588 /// does not provide a filename, then use BaseName, and use the extension
1589 /// suitable for FileType.
1590 static const char *MakeCLOutputFilename(const ArgList &Args, StringRef ArgValue,
1591 StringRef BaseName, types::ID FileType) {
1592 SmallString<128> Filename = ArgValue;
1594 if (ArgValue.empty()) {
1595 // If the argument is empty, output to BaseName in the current dir.
1596 Filename = BaseName;
1597 } else if (llvm::sys::path::is_separator(Filename.back())) {
1598 // If the argument is a directory, output to BaseName in that dir.
1599 llvm::sys::path::append(Filename, BaseName);
1602 if (!llvm::sys::path::has_extension(ArgValue)) {
1603 // If the argument didn't provide an extension, then set it.
1604 const char *Extension = types::getTypeTempSuffix(FileType, true);
1606 if (FileType == types::TY_Image &&
1607 Args.hasArg(options::OPT__SLASH_LD, options::OPT__SLASH_LDd)) {
1608 // The output file is a dll.
1612 llvm::sys::path::replace_extension(Filename, Extension);
1615 return Args.MakeArgString(Filename.c_str());
1618 const char *Driver::GetNamedOutputPath(Compilation &C,
1619 const JobAction &JA,
1620 const char *BaseInput,
1621 const char *BoundArch,
1623 bool MultipleArchs) const {
1624 llvm::PrettyStackTraceString CrashInfo("Computing output path");
1625 // Output to a user requested destination?
1626 if (AtTopLevel && !isa<DsymutilJobAction>(JA) &&
1627 !isa<VerifyJobAction>(JA)) {
1628 if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o))
1629 return C.addResultFile(FinalOutput->getValue(), &JA);
1632 // For /P, preprocess to file named after BaseInput.
1633 if (C.getArgs().hasArg(options::OPT__SLASH_P)) {
1634 assert(AtTopLevel && isa<PreprocessJobAction>(JA));
1635 StringRef BaseName = llvm::sys::path::filename(BaseInput);
1637 if (Arg *A = C.getArgs().getLastArg(options::OPT__SLASH_Fi))
1638 NameArg = A->getValue();
1639 return C.addResultFile(MakeCLOutputFilename(C.getArgs(), NameArg, BaseName,
1640 types::TY_PP_C), &JA);
1643 // Default to writing to stdout?
1644 if (AtTopLevel && !CCGenDiagnostics &&
1645 (isa<PreprocessJobAction>(JA) || JA.getType() == types::TY_ModuleFile))
1648 // Is this the assembly listing for /FA?
1649 if (JA.getType() == types::TY_PP_Asm &&
1650 (C.getArgs().hasArg(options::OPT__SLASH_FA) ||
1651 C.getArgs().hasArg(options::OPT__SLASH_Fa))) {
1652 // Use /Fa and the input filename to determine the asm file name.
1653 StringRef BaseName = llvm::sys::path::filename(BaseInput);
1654 StringRef FaValue = C.getArgs().getLastArgValue(options::OPT__SLASH_Fa);
1655 return C.addResultFile(MakeCLOutputFilename(C.getArgs(), FaValue, BaseName,
1656 JA.getType()), &JA);
1659 // Output to a temporary file?
1660 if ((!AtTopLevel && !C.getArgs().hasArg(options::OPT_save_temps) &&
1661 !C.getArgs().hasArg(options::OPT__SLASH_Fo)) ||
1663 StringRef Name = llvm::sys::path::filename(BaseInput);
1664 std::pair<StringRef, StringRef> Split = Name.split('.');
1665 std::string TmpName =
1666 GetTemporaryPath(Split.first,
1667 types::getTypeTempSuffix(JA.getType(), IsCLMode()));
1668 return C.addTempFile(C.getArgs().MakeArgString(TmpName.c_str()));
1671 SmallString<128> BasePath(BaseInput);
1674 // Dsymutil actions should use the full path.
1675 if (isa<DsymutilJobAction>(JA) || isa<VerifyJobAction>(JA))
1676 BaseName = BasePath;
1678 BaseName = llvm::sys::path::filename(BasePath);
1680 // Determine what the derived output name should be.
1681 const char *NamedOutput;
1683 if (JA.getType() == types::TY_Object &&
1684 C.getArgs().hasArg(options::OPT__SLASH_Fo)) {
1685 // The /Fo flag decides the object filename.
1686 StringRef Val = C.getArgs().getLastArg(options::OPT__SLASH_Fo)->getValue();
1687 NamedOutput = MakeCLOutputFilename(C.getArgs(), Val, BaseName,
1689 } else if (JA.getType() == types::TY_Image &&
1690 C.getArgs().hasArg(options::OPT__SLASH_Fe)) {
1691 // The /Fe flag names the linked file.
1692 StringRef Val = C.getArgs().getLastArg(options::OPT__SLASH_Fe)->getValue();
1693 NamedOutput = MakeCLOutputFilename(C.getArgs(), Val, BaseName,
1695 } else if (JA.getType() == types::TY_Image) {
1697 // clang-cl uses BaseName for the executable name.
1698 NamedOutput = MakeCLOutputFilename(C.getArgs(), "", BaseName,
1700 } else if (MultipleArchs && BoundArch) {
1701 SmallString<128> Output(DefaultImageName.c_str());
1703 Output.append(BoundArch);
1704 NamedOutput = C.getArgs().MakeArgString(Output.c_str());
1706 NamedOutput = DefaultImageName.c_str();
1708 const char *Suffix = types::getTypeTempSuffix(JA.getType(), IsCLMode());
1709 assert(Suffix && "All types used for output should have a suffix.");
1711 std::string::size_type End = std::string::npos;
1712 if (!types::appendSuffixForType(JA.getType()))
1713 End = BaseName.rfind('.');
1714 SmallString<128> Suffixed(BaseName.substr(0, End));
1715 if (MultipleArchs && BoundArch) {
1717 Suffixed.append(BoundArch);
1721 NamedOutput = C.getArgs().MakeArgString(Suffixed.c_str());
1724 // If we're saving temps and the temp file conflicts with the input file,
1725 // then avoid overwriting input file.
1726 if (!AtTopLevel && C.getArgs().hasArg(options::OPT_save_temps) &&
1727 NamedOutput == BaseName) {
1729 bool SameFile = false;
1730 SmallString<256> Result;
1731 llvm::sys::fs::current_path(Result);
1732 llvm::sys::path::append(Result, BaseName);
1733 llvm::sys::fs::equivalent(BaseInput, Result.c_str(), SameFile);
1734 // Must share the same path to conflict.
1736 StringRef Name = llvm::sys::path::filename(BaseInput);
1737 std::pair<StringRef, StringRef> Split = Name.split('.');
1738 std::string TmpName =
1739 GetTemporaryPath(Split.first,
1740 types::getTypeTempSuffix(JA.getType(), IsCLMode()));
1741 return C.addTempFile(C.getArgs().MakeArgString(TmpName.c_str()));
1745 // As an annoying special case, PCH generation doesn't strip the pathname.
1746 if (JA.getType() == types::TY_PCH) {
1747 llvm::sys::path::remove_filename(BasePath);
1748 if (BasePath.empty())
1749 BasePath = NamedOutput;
1751 llvm::sys::path::append(BasePath, NamedOutput);
1752 return C.addResultFile(C.getArgs().MakeArgString(BasePath.c_str()), &JA);
1754 return C.addResultFile(NamedOutput, &JA);
1758 std::string Driver::GetFilePath(const char *Name, const ToolChain &TC) const {
1759 // Respect a limited subset of the '-Bprefix' functionality in GCC by
1760 // attempting to use this prefix when looking for file paths.
1761 for (Driver::prefix_list::const_iterator it = PrefixDirs.begin(),
1762 ie = PrefixDirs.end(); it != ie; ++it) {
1763 std::string Dir(*it);
1767 Dir = SysRoot + Dir.substr(1);
1768 SmallString<128> P(Dir);
1769 llvm::sys::path::append(P, Name);
1770 if (llvm::sys::fs::exists(Twine(P)))
1774 SmallString<128> P(ResourceDir);
1775 llvm::sys::path::append(P, Name);
1776 if (llvm::sys::fs::exists(Twine(P)))
1779 const ToolChain::path_list &List = TC.getFilePaths();
1780 for (ToolChain::path_list::const_iterator
1781 it = List.begin(), ie = List.end(); it != ie; ++it) {
1782 std::string Dir(*it);
1786 Dir = SysRoot + Dir.substr(1);
1787 SmallString<128> P(Dir);
1788 llvm::sys::path::append(P, Name);
1789 if (llvm::sys::fs::exists(Twine(P)))
1796 std::string Driver::GetProgramPath(const char *Name,
1797 const ToolChain &TC) const {
1798 // FIXME: Needs a better variable than DefaultTargetTriple
1799 std::string TargetSpecificExecutable(DefaultTargetTriple + "-" + Name);
1800 // Respect a limited subset of the '-Bprefix' functionality in GCC by
1801 // attempting to use this prefix when looking for program paths.
1802 for (Driver::prefix_list::const_iterator it = PrefixDirs.begin(),
1803 ie = PrefixDirs.end(); it != ie; ++it) {
1804 if (llvm::sys::fs::is_directory(*it)) {
1805 SmallString<128> P(*it);
1806 llvm::sys::path::append(P, TargetSpecificExecutable);
1807 if (llvm::sys::fs::can_execute(Twine(P)))
1809 llvm::sys::path::remove_filename(P);
1810 llvm::sys::path::append(P, Name);
1811 if (llvm::sys::fs::can_execute(Twine(P)))
1814 SmallString<128> P(*it + Name);
1815 if (llvm::sys::fs::can_execute(Twine(P)))
1820 const ToolChain::path_list &List = TC.getProgramPaths();
1821 for (ToolChain::path_list::const_iterator
1822 it = List.begin(), ie = List.end(); it != ie; ++it) {
1823 SmallString<128> P(*it);
1824 llvm::sys::path::append(P, TargetSpecificExecutable);
1825 if (llvm::sys::fs::can_execute(Twine(P)))
1827 llvm::sys::path::remove_filename(P);
1828 llvm::sys::path::append(P, Name);
1829 if (llvm::sys::fs::can_execute(Twine(P)))
1833 // If all else failed, search the path.
1834 std::string P(llvm::sys::FindProgramByName(TargetSpecificExecutable));
1838 P = llvm::sys::FindProgramByName(Name);
1845 std::string Driver::GetTemporaryPath(StringRef Prefix, const char *Suffix)
1847 SmallString<128> Path;
1848 std::error_code EC = llvm::sys::fs::createTemporaryFile(Prefix, Suffix, Path);
1850 Diag(clang::diag::err_unable_to_make_temp) << EC.message();
1857 /// \brief Compute target triple from args.
1859 /// This routine provides the logic to compute a target triple from various
1860 /// args passed to the driver and the default triple string.
1861 static llvm::Triple computeTargetTriple(StringRef DefaultTargetTriple,
1862 const ArgList &Args,
1863 StringRef DarwinArchName) {
1864 // FIXME: Already done in Compilation *Driver::BuildCompilation
1865 if (const Arg *A = Args.getLastArg(options::OPT_target))
1866 DefaultTargetTriple = A->getValue();
1868 llvm::Triple Target(llvm::Triple::normalize(DefaultTargetTriple));
1870 // Handle Apple-specific options available here.
1871 if (Target.isOSBinFormatMachO()) {
1872 // If an explict Darwin arch name is given, that trumps all.
1873 if (!DarwinArchName.empty()) {
1874 tools::darwin::setTripleTypeForMachOArchName(Target, DarwinArchName);
1878 // Handle the Darwin '-arch' flag.
1879 if (Arg *A = Args.getLastArg(options::OPT_arch)) {
1880 StringRef ArchName = A->getValue();
1881 tools::darwin::setTripleTypeForMachOArchName(Target, ArchName);
1885 // Handle pseudo-target flags '-mlittle-endian'/'-EL' and
1886 // '-mbig-endian'/'-EB'.
1887 if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
1888 options::OPT_mbig_endian)) {
1889 if (A->getOption().matches(options::OPT_mlittle_endian)) {
1890 if (Target.getArch() == llvm::Triple::mips)
1891 Target.setArch(llvm::Triple::mipsel);
1892 else if (Target.getArch() == llvm::Triple::mips64)
1893 Target.setArch(llvm::Triple::mips64el);
1894 else if (Target.getArch() == llvm::Triple::aarch64_be)
1895 Target.setArch(llvm::Triple::aarch64);
1896 else if (Target.getArch() == llvm::Triple::arm64_be)
1897 Target.setArch(llvm::Triple::arm64);
1899 if (Target.getArch() == llvm::Triple::mipsel)
1900 Target.setArch(llvm::Triple::mips);
1901 else if (Target.getArch() == llvm::Triple::mips64el)
1902 Target.setArch(llvm::Triple::mips64);
1903 else if (Target.getArch() == llvm::Triple::aarch64)
1904 Target.setArch(llvm::Triple::aarch64_be);
1905 else if (Target.getArch() == llvm::Triple::arm64)
1906 Target.setArch(llvm::Triple::arm64_be);
1910 // Skip further flag support on OSes which don't support '-m32' or '-m64'.
1911 if (Target.getArchName() == "tce" ||
1912 Target.getOS() == llvm::Triple::AuroraUX ||
1913 Target.getOS() == llvm::Triple::Minix)
1916 // Handle pseudo-target flags '-m64', '-mx32', '-m32' and '-m16'.
1917 if (Arg *A = Args.getLastArg(options::OPT_m64, options::OPT_mx32,
1918 options::OPT_m32, options::OPT_m16)) {
1919 llvm::Triple::ArchType AT = llvm::Triple::UnknownArch;
1921 if (A->getOption().matches(options::OPT_m64))
1922 AT = Target.get64BitArchVariant().getArch();
1923 else if (A->getOption().matches(options::OPT_mx32) &&
1924 Target.get64BitArchVariant().getArch() == llvm::Triple::x86_64) {
1925 AT = llvm::Triple::x86_64;
1926 Target.setEnvironment(llvm::Triple::GNUX32);
1927 } else if (A->getOption().matches(options::OPT_m32))
1928 AT = Target.get32BitArchVariant().getArch();
1929 else if (A->getOption().matches(options::OPT_m16) &&
1930 Target.get32BitArchVariant().getArch() == llvm::Triple::x86) {
1931 AT = llvm::Triple::x86;
1932 Target.setEnvironment(llvm::Triple::CODE16);
1935 if (AT != llvm::Triple::UnknownArch)
1942 const ToolChain &Driver::getToolChain(const ArgList &Args,
1943 StringRef DarwinArchName) const {
1944 llvm::Triple Target = computeTargetTriple(DefaultTargetTriple, Args,
1947 ToolChain *&TC = ToolChains[Target.str()];
1949 switch (Target.getOS()) {
1950 case llvm::Triple::AuroraUX:
1951 TC = new toolchains::AuroraUX(*this, Target, Args);
1953 case llvm::Triple::Darwin:
1954 case llvm::Triple::MacOSX:
1955 case llvm::Triple::IOS:
1956 TC = new toolchains::DarwinClang(*this, Target, Args);
1958 case llvm::Triple::DragonFly:
1959 TC = new toolchains::DragonFly(*this, Target, Args);
1961 case llvm::Triple::OpenBSD:
1962 TC = new toolchains::OpenBSD(*this, Target, Args);
1964 case llvm::Triple::Bitrig:
1965 TC = new toolchains::Bitrig(*this, Target, Args);
1967 case llvm::Triple::NetBSD:
1968 TC = new toolchains::NetBSD(*this, Target, Args);
1970 case llvm::Triple::FreeBSD:
1971 TC = new toolchains::FreeBSD(*this, Target, Args);
1973 case llvm::Triple::Minix:
1974 TC = new toolchains::Minix(*this, Target, Args);
1976 case llvm::Triple::Linux:
1977 if (Target.getArch() == llvm::Triple::hexagon)
1978 TC = new toolchains::Hexagon_TC(*this, Target, Args);
1980 TC = new toolchains::Linux(*this, Target, Args);
1982 case llvm::Triple::Solaris:
1983 TC = new toolchains::Solaris(*this, Target, Args);
1985 case llvm::Triple::Win32:
1986 switch (Target.getEnvironment()) {
1988 if (Target.isOSBinFormatELF())
1989 TC = new toolchains::Generic_ELF(*this, Target, Args);
1990 else if (Target.isOSBinFormatMachO())
1991 TC = new toolchains::MachO(*this, Target, Args);
1993 TC = new toolchains::Generic_GCC(*this, Target, Args);
1995 case llvm::Triple::GNU:
1996 // FIXME: We need a MinGW toolchain. Use the default Generic_GCC
1997 // toolchain for now as the default case would below otherwise.
1998 if (Target.isOSBinFormatELF())
1999 TC = new toolchains::Generic_ELF(*this, Target, Args);
2001 TC = new toolchains::Generic_GCC(*this, Target, Args);
2003 case llvm::Triple::MSVC:
2004 case llvm::Triple::UnknownEnvironment:
2005 TC = new toolchains::Windows(*this, Target, Args);
2010 // TCE is an OSless target
2011 if (Target.getArchName() == "tce") {
2012 TC = new toolchains::TCEToolChain(*this, Target, Args);
2015 // If Hexagon is configured as an OSless target
2016 if (Target.getArch() == llvm::Triple::hexagon) {
2017 TC = new toolchains::Hexagon_TC(*this, Target, Args);
2020 if (Target.getArch() == llvm::Triple::xcore) {
2021 TC = new toolchains::XCore(*this, Target, Args);
2024 if (Target.isOSBinFormatELF()) {
2025 TC = new toolchains::Generic_ELF(*this, Target, Args);
2028 if (Target.getObjectFormat() == llvm::Triple::MachO) {
2029 TC = new toolchains::MachO(*this, Target, Args);
2032 TC = new toolchains::Generic_GCC(*this, Target, Args);
2039 bool Driver::ShouldUseClangCompiler(const JobAction &JA) const {
2040 // Check if user requested no clang, or clang doesn't understand this type (we
2041 // only handle single inputs for now).
2042 if (JA.size() != 1 ||
2043 !types::isAcceptedByClang((*JA.begin())->getType()))
2046 // Otherwise make sure this is an action clang understands.
2047 if (!isa<PreprocessJobAction>(JA) && !isa<PrecompileJobAction>(JA) &&
2048 !isa<CompileJobAction>(JA))
2054 /// GetReleaseVersion - Parse (([0-9]+)(.([0-9]+)(.([0-9]+)?))?)? and return the
2055 /// grouped values as integers. Numbers which are not provided are set to 0.
2057 /// \return True if the entire string was parsed (9.2), or all groups were
2058 /// parsed (10.3.5extrastuff).
2059 bool Driver::GetReleaseVersion(const char *Str, unsigned &Major,
2060 unsigned &Minor, unsigned &Micro,
2064 Major = Minor = Micro = 0;
2069 Major = (unsigned) strtol(Str, &End, 10);
2070 if (*Str != '\0' && *End == '\0')
2076 Minor = (unsigned) strtol(Str, &End, 10);
2077 if (*Str != '\0' && *End == '\0')
2083 Micro = (unsigned) strtol(Str, &End, 10);
2084 if (*Str != '\0' && *End == '\0')
2092 std::pair<unsigned, unsigned> Driver::getIncludeExcludeOptionFlagMasks() const {
2093 unsigned IncludedFlagsBitmask = 0;
2094 unsigned ExcludedFlagsBitmask = options::NoDriverOption;
2096 if (Mode == CLMode) {
2097 // Include CL and Core options.
2098 IncludedFlagsBitmask |= options::CLOption;
2099 IncludedFlagsBitmask |= options::CoreOption;
2101 ExcludedFlagsBitmask |= options::CLOption;
2104 return std::make_pair(IncludedFlagsBitmask, ExcludedFlagsBitmask);
2107 bool clang::driver::isOptimizationLevelFast(const llvm::opt::ArgList &Args) {
2108 return Args.hasFlag(options::OPT_Ofast, options::OPT_O_Group, false);