| //===--- Driver.cpp - Clang GCC Compatible Driver -------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "clang/Driver/Driver.h" |
| #include "InputInfo.h" |
| #include "ToolChains.h" |
| #include "clang/Basic/Version.h" |
| #include "clang/Basic/VirtualFileSystem.h" |
| #include "clang/Config/config.h" |
| #include "clang/Driver/Action.h" |
| #include "clang/Driver/Compilation.h" |
| #include "clang/Driver/DriverDiagnostic.h" |
| #include "clang/Driver/Job.h" |
| #include "clang/Driver/Options.h" |
| #include "clang/Driver/SanitizerArgs.h" |
| #include "clang/Driver/Tool.h" |
| #include "clang/Driver/ToolChain.h" |
| #include "llvm/ADT/ArrayRef.h" |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/ADT/SmallSet.h" |
| #include "llvm/ADT/StringExtras.h" |
| #include "llvm/ADT/StringSet.h" |
| #include "llvm/ADT/StringSwitch.h" |
| #include "llvm/Option/Arg.h" |
| #include "llvm/Option/ArgList.h" |
| #include "llvm/Option/OptSpecifier.h" |
| #include "llvm/Option/OptTable.h" |
| #include "llvm/Option/Option.h" |
| #include "llvm/Support/ErrorHandling.h" |
| #include "llvm/Support/FileSystem.h" |
| #include "llvm/Support/Path.h" |
| #include "llvm/Support/PrettyStackTrace.h" |
| #include "llvm/Support/Process.h" |
| #include "llvm/Support/Program.h" |
| #include "llvm/Support/raw_ostream.h" |
| #include <map> |
| #include <memory> |
| #include <utility> |
| #if LLVM_ON_UNIX |
| #include <unistd.h> // getpid |
| #endif |
| |
| using namespace clang::driver; |
| using namespace clang; |
| using namespace llvm::opt; |
| |
| Driver::Driver(StringRef ClangExecutable, StringRef DefaultTargetTriple, |
| DiagnosticsEngine &Diags, |
| IntrusiveRefCntPtr<vfs::FileSystem> VFS) |
| : Opts(createDriverOptTable()), Diags(Diags), VFS(std::move(VFS)), |
| Mode(GCCMode), SaveTemps(SaveTempsNone), BitcodeEmbed(EmbedNone), |
| LTOMode(LTOK_None), ClangExecutable(ClangExecutable), |
| SysRoot(DEFAULT_SYSROOT), UseStdLib(true), |
| DriverTitle("clang LLVM compiler"), CCPrintOptionsFilename(nullptr), |
| CCPrintHeadersFilename(nullptr), CCLogDiagnosticsFilename(nullptr), |
| CCCPrintBindings(false), CCPrintHeaders(false), CCLogDiagnostics(false), |
| CCGenDiagnostics(false), DefaultTargetTriple(DefaultTargetTriple), |
| CCCGenericGCCName(""), CheckInputsExist(true), CCCUsePCH(true), |
| SuppressMissingInputWarning(false) { |
| |
| // Provide a sane fallback if no VFS is specified. |
| if (!this->VFS) |
| this->VFS = vfs::getRealFileSystem(); |
| |
| Name = llvm::sys::path::filename(ClangExecutable); |
| Dir = llvm::sys::path::parent_path(ClangExecutable); |
| InstalledDir = Dir; // Provide a sensible default installed dir. |
| |
| // Compute the path to the resource directory. |
| StringRef ClangResourceDir(CLANG_RESOURCE_DIR); |
| SmallString<128> P(Dir); |
| if (ClangResourceDir != "") { |
| llvm::sys::path::append(P, ClangResourceDir); |
| } else { |
| StringRef ClangLibdirSuffix(CLANG_LIBDIR_SUFFIX); |
| llvm::sys::path::append(P, "..", Twine("lib") + ClangLibdirSuffix, "clang", |
| CLANG_VERSION_STRING); |
| } |
| ResourceDir = P.str(); |
| } |
| |
| Driver::~Driver() { |
| delete Opts; |
| |
| llvm::DeleteContainerSeconds(ToolChains); |
| } |
| |
| void Driver::ParseDriverMode(StringRef ProgramName, |
| ArrayRef<const char *> Args) { |
| auto Default = ToolChain::getTargetAndModeFromProgramName(ProgramName); |
| StringRef DefaultMode(Default.second); |
| setDriverModeFromOption(DefaultMode); |
| |
| for (const char *ArgPtr : Args) { |
| // Ingore nullptrs, they are response file's EOL markers |
| if (ArgPtr == nullptr) |
| continue; |
| const StringRef Arg = ArgPtr; |
| setDriverModeFromOption(Arg); |
| } |
| } |
| |
| void Driver::setDriverModeFromOption(StringRef Opt) { |
| const std::string OptName = |
| getOpts().getOption(options::OPT_driver_mode).getPrefixedName(); |
| if (!Opt.startswith(OptName)) |
| return; |
| StringRef Value = Opt.drop_front(OptName.size()); |
| |
| const unsigned M = llvm::StringSwitch<unsigned>(Value) |
| .Case("gcc", GCCMode) |
| .Case("g++", GXXMode) |
| .Case("cpp", CPPMode) |
| .Case("cl", CLMode) |
| .Default(~0U); |
| |
| if (M != ~0U) |
| Mode = static_cast<DriverMode>(M); |
| else |
| Diag(diag::err_drv_unsupported_option_argument) << OptName << Value; |
| } |
| |
| InputArgList Driver::ParseArgStrings(ArrayRef<const char *> ArgStrings) { |
| llvm::PrettyStackTraceString CrashInfo("Command line argument parsing"); |
| |
| unsigned IncludedFlagsBitmask; |
| unsigned ExcludedFlagsBitmask; |
| std::tie(IncludedFlagsBitmask, ExcludedFlagsBitmask) = |
| getIncludeExcludeOptionFlagMasks(); |
| |
| unsigned MissingArgIndex, MissingArgCount; |
| InputArgList Args = |
| getOpts().ParseArgs(ArgStrings, MissingArgIndex, MissingArgCount, |
| IncludedFlagsBitmask, ExcludedFlagsBitmask); |
| |
| // Check for missing argument error. |
| if (MissingArgCount) |
| Diag(clang::diag::err_drv_missing_argument) |
| << Args.getArgString(MissingArgIndex) << MissingArgCount; |
| |
| // Check for unsupported options. |
| for (const Arg *A : Args) { |
| if (A->getOption().hasFlag(options::Unsupported)) { |
| Diag(clang::diag::err_drv_unsupported_opt) << A->getAsString(Args); |
| continue; |
| } |
| |
| // Warn about -mcpu= without an argument. |
| if (A->getOption().matches(options::OPT_mcpu_EQ) && A->containsValue("")) { |
| Diag(clang::diag::warn_drv_empty_joined_argument) << A->getAsString(Args); |
| } |
| } |
| |
| for (const Arg *A : Args.filtered(options::OPT_UNKNOWN)) |
| Diags.Report(IsCLMode() ? diag::warn_drv_unknown_argument_clang_cl : |
| diag::err_drv_unknown_argument) |
| << A->getAsString(Args); |
| |
| return Args; |
| } |
| |
| // Determine which compilation mode we are in. We look for options which |
| // affect the phase, starting with the earliest phases, and record which |
| // option we used to determine the final phase. |
| phases::ID Driver::getFinalPhase(const DerivedArgList &DAL, |
| Arg **FinalPhaseArg) const { |
| Arg *PhaseArg = nullptr; |
| phases::ID FinalPhase; |
| |
| // -{E,EP,P,M,MM} only run the preprocessor. |
| if (CCCIsCPP() || (PhaseArg = DAL.getLastArg(options::OPT_E)) || |
| (PhaseArg = DAL.getLastArg(options::OPT__SLASH_EP)) || |
| (PhaseArg = DAL.getLastArg(options::OPT_M, options::OPT_MM)) || |
| (PhaseArg = DAL.getLastArg(options::OPT__SLASH_P))) { |
| FinalPhase = phases::Preprocess; |
| |
| // -{fsyntax-only,-analyze,emit-ast} only run up to the compiler. |
| } else if ((PhaseArg = DAL.getLastArg(options::OPT_fsyntax_only)) || |
| (PhaseArg = DAL.getLastArg(options::OPT_module_file_info)) || |
| (PhaseArg = DAL.getLastArg(options::OPT_verify_pch)) || |
| (PhaseArg = DAL.getLastArg(options::OPT_rewrite_objc)) || |
| (PhaseArg = DAL.getLastArg(options::OPT_rewrite_legacy_objc)) || |
| (PhaseArg = DAL.getLastArg(options::OPT__migrate)) || |
| (PhaseArg = DAL.getLastArg(options::OPT__analyze, |
| options::OPT__analyze_auto)) || |
| (PhaseArg = DAL.getLastArg(options::OPT_emit_ast))) { |
| FinalPhase = phases::Compile; |
| |
| // -S only runs up to the backend. |
| } else if ((PhaseArg = DAL.getLastArg(options::OPT_S))) { |
| FinalPhase = phases::Backend; |
| |
| // -c compilation only runs up to the assembler. |
| } else if ((PhaseArg = DAL.getLastArg(options::OPT_c))) { |
| FinalPhase = phases::Assemble; |
| |
| // Otherwise do everything. |
| } else |
| FinalPhase = phases::Link; |
| |
| if (FinalPhaseArg) |
| *FinalPhaseArg = PhaseArg; |
| |
| return FinalPhase; |
| } |
| |
| static Arg *MakeInputArg(DerivedArgList &Args, OptTable *Opts, |
| StringRef Value) { |
| Arg *A = new Arg(Opts->getOption(options::OPT_INPUT), Value, |
| Args.getBaseArgs().MakeIndex(Value), Value.data()); |
| Args.AddSynthesizedArg(A); |
| A->claim(); |
| return A; |
| } |
| |
| DerivedArgList *Driver::TranslateInputArgs(const InputArgList &Args) const { |
| DerivedArgList *DAL = new DerivedArgList(Args); |
| |
| bool HasNostdlib = Args.hasArg(options::OPT_nostdlib); |
| bool HasNodefaultlib = Args.hasArg(options::OPT_nodefaultlibs); |
| for (Arg *A : Args) { |
| // Unfortunately, we have to parse some forwarding options (-Xassembler, |
| // -Xlinker, -Xpreprocessor) because we either integrate their functionality |
| // (assembler and preprocessor), or bypass a previous driver ('collect2'). |
| |
| // Rewrite linker options, to replace --no-demangle with a custom internal |
| // option. |
| if ((A->getOption().matches(options::OPT_Wl_COMMA) || |
| A->getOption().matches(options::OPT_Xlinker)) && |
| A->containsValue("--no-demangle")) { |
| // Add the rewritten no-demangle argument. |
| DAL->AddFlagArg(A, Opts->getOption(options::OPT_Z_Xlinker__no_demangle)); |
| |
| // Add the remaining values as Xlinker arguments. |
| for (StringRef Val : A->getValues()) |
| if (Val != "--no-demangle") |
| DAL->AddSeparateArg(A, Opts->getOption(options::OPT_Xlinker), Val); |
| |
| continue; |
| } |
| |
| // Rewrite preprocessor options, to replace -Wp,-MD,FOO which is used by |
| // some build systems. We don't try to be complete here because we don't |
| // care to encourage this usage model. |
| if (A->getOption().matches(options::OPT_Wp_COMMA) && |
| (A->getValue(0) == StringRef("-MD") || |
| A->getValue(0) == StringRef("-MMD"))) { |
| // Rewrite to -MD/-MMD along with -MF. |
| if (A->getValue(0) == StringRef("-MD")) |
| DAL->AddFlagArg(A, Opts->getOption(options::OPT_MD)); |
| else |
| DAL->AddFlagArg(A, Opts->getOption(options::OPT_MMD)); |
| if (A->getNumValues() == 2) |
| DAL->AddSeparateArg(A, Opts->getOption(options::OPT_MF), |
| A->getValue(1)); |
| continue; |
| } |
| |
| // Rewrite reserved library names. |
| if (A->getOption().matches(options::OPT_l)) { |
| StringRef Value = A->getValue(); |
| |
| // Rewrite unless -nostdlib is present. |
| if (!HasNostdlib && !HasNodefaultlib && Value == "stdc++") { |
| DAL->AddFlagArg(A, Opts->getOption(options::OPT_Z_reserved_lib_stdcxx)); |
| continue; |
| } |
| |
| // Rewrite unconditionally. |
| if (Value == "cc_kext") { |
| DAL->AddFlagArg(A, Opts->getOption(options::OPT_Z_reserved_lib_cckext)); |
| continue; |
| } |
| } |
| |
| // Pick up inputs via the -- option. |
| if (A->getOption().matches(options::OPT__DASH_DASH)) { |
| A->claim(); |
| for (StringRef Val : A->getValues()) |
| DAL->append(MakeInputArg(*DAL, Opts, Val)); |
| continue; |
| } |
| |
| DAL->append(A); |
| } |
| |
| // Enforce -static if -miamcu is present. |
| if (Args.hasFlag(options::OPT_miamcu, options::OPT_mno_iamcu, false)) |
| DAL->AddFlagArg(0, Opts->getOption(options::OPT_static)); |
| |
| // Add a default value of -mlinker-version=, if one was given and the user |
| // didn't specify one. |
| #if defined(HOST_LINK_VERSION) |
| if (!Args.hasArg(options::OPT_mlinker_version_EQ) && |
| strlen(HOST_LINK_VERSION) > 0) { |
| DAL->AddJoinedArg(0, Opts->getOption(options::OPT_mlinker_version_EQ), |
| HOST_LINK_VERSION); |
| DAL->getLastArg(options::OPT_mlinker_version_EQ)->claim(); |
| } |
| #endif |
| |
| return DAL; |
| } |
| |
| /// \brief Compute target triple from args. |
| /// |
| /// This routine provides the logic to compute a target triple from various |
| /// args passed to the driver and the default triple string. |
| static llvm::Triple computeTargetTriple(const Driver &D, |
| StringRef DefaultTargetTriple, |
| const ArgList &Args, |
| StringRef DarwinArchName = "") { |
| // FIXME: Already done in Compilation *Driver::BuildCompilation |
| if (const Arg *A = Args.getLastArg(options::OPT_target)) |
| DefaultTargetTriple = A->getValue(); |
| |
| llvm::Triple Target(llvm::Triple::normalize(DefaultTargetTriple)); |
| |
| // Handle Apple-specific options available here. |
| if (Target.isOSBinFormatMachO()) { |
| // If an explict Darwin arch name is given, that trumps all. |
| if (!DarwinArchName.empty()) { |
| tools::darwin::setTripleTypeForMachOArchName(Target, DarwinArchName); |
| return Target; |
| } |
| |
| // Handle the Darwin '-arch' flag. |
| if (Arg *A = Args.getLastArg(options::OPT_arch)) { |
| StringRef ArchName = A->getValue(); |
| tools::darwin::setTripleTypeForMachOArchName(Target, ArchName); |
| } |
| } |
| |
| // Handle pseudo-target flags '-mlittle-endian'/'-EL' and |
| // '-mbig-endian'/'-EB'. |
| if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian, |
| options::OPT_mbig_endian)) { |
| if (A->getOption().matches(options::OPT_mlittle_endian)) { |
| llvm::Triple LE = Target.getLittleEndianArchVariant(); |
| if (LE.getArch() != llvm::Triple::UnknownArch) |
| Target = std::move(LE); |
| } else { |
| llvm::Triple BE = Target.getBigEndianArchVariant(); |
| if (BE.getArch() != llvm::Triple::UnknownArch) |
| Target = std::move(BE); |
| } |
| } |
| |
| // Skip further flag support on OSes which don't support '-m32' or '-m64'. |
| if (Target.getArch() == llvm::Triple::tce || |
| Target.getOS() == llvm::Triple::Minix) |
| return Target; |
| |
| // Handle pseudo-target flags '-m64', '-mx32', '-m32' and '-m16'. |
| Arg *A = Args.getLastArg(options::OPT_m64, options::OPT_mx32, |
| options::OPT_m32, options::OPT_m16); |
| if (A) { |
| llvm::Triple::ArchType AT = llvm::Triple::UnknownArch; |
| |
| if (A->getOption().matches(options::OPT_m64)) { |
| AT = Target.get64BitArchVariant().getArch(); |
| if (Target.getEnvironment() == llvm::Triple::GNUX32) |
| Target.setEnvironment(llvm::Triple::GNU); |
| } else if (A->getOption().matches(options::OPT_mx32) && |
| Target.get64BitArchVariant().getArch() == llvm::Triple::x86_64) { |
| AT = llvm::Triple::x86_64; |
| Target.setEnvironment(llvm::Triple::GNUX32); |
| } else if (A->getOption().matches(options::OPT_m32)) { |
| AT = Target.get32BitArchVariant().getArch(); |
| if (Target.getEnvironment() == llvm::Triple::GNUX32) |
| Target.setEnvironment(llvm::Triple::GNU); |
| } else if (A->getOption().matches(options::OPT_m16) && |
| Target.get32BitArchVariant().getArch() == llvm::Triple::x86) { |
| AT = llvm::Triple::x86; |
| Target.setEnvironment(llvm::Triple::CODE16); |
| } |
| |
| if (AT != llvm::Triple::UnknownArch && AT != Target.getArch()) |
| Target.setArch(AT); |
| } |
| |
| // Handle -miamcu flag. |
| if (Args.hasFlag(options::OPT_miamcu, options::OPT_mno_iamcu, false)) { |
| if (Target.get32BitArchVariant().getArch() != llvm::Triple::x86) |
| D.Diag(diag::err_drv_unsupported_opt_for_target) << "-miamcu" |
| << Target.str(); |
| |
| if (A && !A->getOption().matches(options::OPT_m32)) |
| D.Diag(diag::err_drv_argument_not_allowed_with) |
| << "-miamcu" << A->getBaseArg().getAsString(Args); |
| |
| Target.setArch(llvm::Triple::x86); |
| Target.setArchName("i586"); |
| Target.setEnvironment(llvm::Triple::UnknownEnvironment); |
| Target.setEnvironmentName(""); |
| Target.setOS(llvm::Triple::ELFIAMCU); |
| Target.setVendor(llvm::Triple::UnknownVendor); |
| Target.setVendorName("intel"); |
| } |
| |
| return Target; |
| } |
| |
| // \brief Parse the LTO options and record the type of LTO compilation |
| // based on which -f(no-)?lto(=.*)? option occurs last. |
| void Driver::setLTOMode(const llvm::opt::ArgList &Args) { |
| LTOMode = LTOK_None; |
| if (!Args.hasFlag(options::OPT_flto, options::OPT_flto_EQ, |
| options::OPT_fno_lto, false)) |
| return; |
| |
| StringRef LTOName("full"); |
| |
| const Arg *A = Args.getLastArg(options::OPT_flto_EQ); |
| if (A) |
| LTOName = A->getValue(); |
| |
| LTOMode = llvm::StringSwitch<LTOKind>(LTOName) |
| .Case("full", LTOK_Full) |
| .Case("thin", LTOK_Thin) |
| .Default(LTOK_Unknown); |
| |
| if (LTOMode == LTOK_Unknown) { |
| assert(A); |
| Diag(diag::err_drv_unsupported_option_argument) << A->getOption().getName() |
| << A->getValue(); |
| } |
| } |
| |
| void Driver::CreateOffloadingDeviceToolChains(Compilation &C, |
| InputList &Inputs) { |
| |
| // |
| // CUDA |
| // |
| // We need to generate a CUDA toolchain if any of the inputs has a CUDA type. |
| if (llvm::any_of(Inputs, [](std::pair<types::ID, const llvm::opt::Arg *> &I) { |
| return types::isCuda(I.first); |
| })) { |
| const ToolChain &TC = getToolChain( |
| C.getInputArgs(), |
| llvm::Triple(C.getSingleOffloadToolChain<Action::OFK_Host>() |
| ->getTriple() |
| .isArch64Bit() |
| ? "nvptx64-nvidia-cuda" |
| : "nvptx-nvidia-cuda")); |
| C.addOffloadDeviceToolChain(&TC, Action::OFK_Cuda); |
| } |
| |
| // |
| // TODO: Add support for other offloading programming models here. |
| // |
| |
| return; |
| } |
| |
| Compilation *Driver::BuildCompilation(ArrayRef<const char *> ArgList) { |
| llvm::PrettyStackTraceString CrashInfo("Compilation construction"); |
| |
| // FIXME: Handle environment options which affect driver behavior, somewhere |
| // (client?). GCC_EXEC_PREFIX, LPATH, CC_PRINT_OPTIONS. |
| |
| if (Optional<std::string> CompilerPathValue = |
| llvm::sys::Process::GetEnv("COMPILER_PATH")) { |
| StringRef CompilerPath = *CompilerPathValue; |
| while (!CompilerPath.empty()) { |
| std::pair<StringRef, StringRef> Split = |
| CompilerPath.split(llvm::sys::EnvPathSeparator); |
| PrefixDirs.push_back(Split.first); |
| CompilerPath = Split.second; |
| } |
| } |
| |
| // We look for the driver mode option early, because the mode can affect |
| // how other options are parsed. |
| ParseDriverMode(ClangExecutable, ArgList.slice(1)); |
| |
| // FIXME: What are we going to do with -V and -b? |
| |
| // FIXME: This stuff needs to go into the Compilation, not the driver. |
| bool CCCPrintPhases; |
| |
| InputArgList Args = ParseArgStrings(ArgList.slice(1)); |
| |
| // Silence driver warnings if requested |
| Diags.setIgnoreAllWarnings(Args.hasArg(options::OPT_w)); |
| |
| // -no-canonical-prefixes is used very early in main. |
| Args.ClaimAllArgs(options::OPT_no_canonical_prefixes); |
| |
| // Ignore -pipe. |
| Args.ClaimAllArgs(options::OPT_pipe); |
| |
| // Extract -ccc args. |
| // |
| // FIXME: We need to figure out where this behavior should live. Most of it |
| // should be outside in the client; the parts that aren't should have proper |
| // options, either by introducing new ones or by overloading gcc ones like -V |
| // or -b. |
| CCCPrintPhases = Args.hasArg(options::OPT_ccc_print_phases); |
| CCCPrintBindings = Args.hasArg(options::OPT_ccc_print_bindings); |
| if (const Arg *A = Args.getLastArg(options::OPT_ccc_gcc_name)) |
| CCCGenericGCCName = A->getValue(); |
| CCCUsePCH = |
| Args.hasFlag(options::OPT_ccc_pch_is_pch, options::OPT_ccc_pch_is_pth); |
| // FIXME: DefaultTargetTriple is used by the target-prefixed calls to as/ld |
| // and getToolChain is const. |
| if (IsCLMode()) { |
| // clang-cl targets MSVC-style Win32. |
| llvm::Triple T(DefaultTargetTriple); |
| T.setOS(llvm::Triple::Win32); |
| T.setVendor(llvm::Triple::PC); |
| T.setEnvironment(llvm::Triple::MSVC); |
| DefaultTargetTriple = T.str(); |
| } |
| if (const Arg *A = Args.getLastArg(options::OPT_target)) |
| DefaultTargetTriple = A->getValue(); |
| if (const Arg *A = Args.getLastArg(options::OPT_ccc_install_dir)) |
| Dir = InstalledDir = A->getValue(); |
| for (const Arg *A : Args.filtered(options::OPT_B)) { |
| A->claim(); |
| PrefixDirs.push_back(A->getValue(0)); |
| } |
| if (const Arg *A = Args.getLastArg(options::OPT__sysroot_EQ)) |
| SysRoot = A->getValue(); |
| if (const Arg *A = Args.getLastArg(options::OPT__dyld_prefix_EQ)) |
| DyldPrefix = A->getValue(); |
| if (Args.hasArg(options::OPT_nostdlib)) |
| UseStdLib = false; |
| |
| if (const Arg *A = Args.getLastArg(options::OPT_resource_dir)) |
| ResourceDir = A->getValue(); |
| |
| if (const Arg *A = Args.getLastArg(options::OPT_save_temps_EQ)) { |
| SaveTemps = llvm::StringSwitch<SaveTempsMode>(A->getValue()) |
| .Case("cwd", SaveTempsCwd) |
| .Case("obj", SaveTempsObj) |
| .Default(SaveTempsCwd); |
| } |
| |
| setLTOMode(Args); |
| |
| // Process -fembed-bitcode= flags. |
| if (Arg *A = Args.getLastArg(options::OPT_fembed_bitcode_EQ)) { |
| StringRef Name = A->getValue(); |
| unsigned Model = llvm::StringSwitch<unsigned>(Name) |
| .Case("off", EmbedNone) |
| .Case("all", EmbedBitcode) |
| .Case("bitcode", EmbedBitcode) |
| .Case("marker", EmbedMarker) |
| .Default(~0U); |
| if (Model == ~0U) { |
| Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) |
| << Name; |
| } else |
| BitcodeEmbed = static_cast<BitcodeEmbedMode>(Model); |
| } |
| |
| std::unique_ptr<llvm::opt::InputArgList> UArgs = |
| llvm::make_unique<InputArgList>(std::move(Args)); |
| |
| // Perform the default argument translations. |
| DerivedArgList *TranslatedArgs = TranslateInputArgs(*UArgs); |
| |
| // Owned by the host. |
| const ToolChain &TC = getToolChain( |
| *UArgs, computeTargetTriple(*this, DefaultTargetTriple, *UArgs)); |
| |
| // The compilation takes ownership of Args. |
| Compilation *C = new Compilation(*this, TC, UArgs.release(), TranslatedArgs); |
| |
| if (!HandleImmediateArgs(*C)) |
| return C; |
| |
| // Construct the list of inputs. |
| InputList Inputs; |
| BuildInputs(C->getDefaultToolChain(), *TranslatedArgs, Inputs); |
| |
| // Populate the tool chains for the offloading devices, if any. |
| CreateOffloadingDeviceToolChains(*C, Inputs); |
| |
| // Construct the list of abstract actions to perform for this compilation. On |
| // MachO targets this uses the driver-driver and universal actions. |
| if (TC.getTriple().isOSBinFormatMachO()) |
| BuildUniversalActions(*C, C->getDefaultToolChain(), Inputs); |
| else |
| BuildActions(*C, C->getArgs(), Inputs, C->getActions()); |
| |
| if (CCCPrintPhases) { |
| PrintActions(*C); |
| return C; |
| } |
| |
| BuildJobs(*C); |
| |
| return C; |
| } |
| |
| static void printArgList(raw_ostream &OS, const llvm::opt::ArgList &Args) { |
| llvm::opt::ArgStringList ASL; |
| for (const auto *A : Args) |
| A->render(Args, ASL); |
| |
| for (auto I = ASL.begin(), E = ASL.end(); I != E; ++I) { |
| if (I != ASL.begin()) |
| OS << ' '; |
| Command::printArg(OS, *I, true); |
| } |
| OS << '\n'; |
| } |
| |
| bool Driver::getCrashDiagnosticFile(StringRef ReproCrashFilename, |
| SmallString<128> &CrashDiagDir) { |
| using namespace llvm::sys; |
| assert(llvm::Triple(llvm::sys::getProcessTriple()).isOSDarwin() && |
| "Only knows about .crash files on Darwin"); |
| |
| // The .crash file can be found on at ~/Library/Logs/DiagnosticReports/ |
| // (or /Library/Logs/DiagnosticReports for root) and has the filename pattern |
| // clang-<VERSION>_<YYYY-MM-DD-HHMMSS>_<hostname>.crash. |
| path::home_directory(CrashDiagDir); |
| if (CrashDiagDir.startswith("/var/root")) |
| CrashDiagDir = "/"; |
| path::append(CrashDiagDir, "Library/Logs/DiagnosticReports"); |
| int PID = |
| #if LLVM_ON_UNIX |
| getpid(); |
| #else |
| 0; |
| #endif |
| std::error_code EC; |
| fs::file_status FileStatus; |
| TimeValue LastAccessTime; |
| SmallString<128> CrashFilePath; |
| // Lookup the .crash files and get the one generated by a subprocess spawned |
| // by this driver invocation. |
| for (fs::directory_iterator File(CrashDiagDir, EC), FileEnd; |
| File != FileEnd && !EC; File.increment(EC)) { |
| StringRef FileName = path::filename(File->path()); |
| if (!FileName.startswith(Name)) |
| continue; |
| if (fs::status(File->path(), FileStatus)) |
| continue; |
| llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> CrashFile = |
| llvm::MemoryBuffer::getFile(File->path()); |
| if (!CrashFile) |
| continue; |
| // The first line should start with "Process:", otherwise this isn't a real |
| // .crash file. |
| StringRef Data = CrashFile.get()->getBuffer(); |
| if (!Data.startswith("Process:")) |
| continue; |
| // Parse parent process pid line, e.g: "Parent Process: clang-4.0 [79141]" |
| size_t ParentProcPos = Data.find("Parent Process:"); |
| if (ParentProcPos == StringRef::npos) |
| continue; |
| size_t LineEnd = Data.find_first_of("\n", ParentProcPos); |
| if (LineEnd == StringRef::npos) |
| continue; |
| StringRef ParentProcess = Data.slice(ParentProcPos+15, LineEnd).trim(); |
| int OpenBracket = -1, CloseBracket = -1; |
| for (size_t i = 0, e = ParentProcess.size(); i < e; ++i) { |
| if (ParentProcess[i] == '[') |
| OpenBracket = i; |
| if (ParentProcess[i] == ']') |
| CloseBracket = i; |
| } |
| // Extract the parent process PID from the .crash file and check whether |
| // it matches this driver invocation pid. |
| int CrashPID; |
| if (OpenBracket < 0 || CloseBracket < 0 || |
| ParentProcess.slice(OpenBracket + 1, CloseBracket) |
| .getAsInteger(10, CrashPID) || CrashPID != PID) { |
| continue; |
| } |
| |
| // Found a .crash file matching the driver pid. To avoid getting an older |
| // and misleading crash file, continue looking for the most recent. |
| // FIXME: the driver can dispatch multiple cc1 invocations, leading to |
| // multiple crashes poiting to the same parent process. Since the driver |
| // does not collect pid information for the dispatched invocation there's |
| // currently no way to distinguish among them. |
| const auto FileAccessTime = FileStatus.getLastModificationTime(); |
| if (FileAccessTime > LastAccessTime) { |
| CrashFilePath.assign(File->path()); |
| LastAccessTime = FileAccessTime; |
| } |
| } |
| |
| // If found, copy it over to the location of other reproducer files. |
| if (!CrashFilePath.empty()) { |
| EC = fs::copy_file(CrashFilePath, ReproCrashFilename); |
| if (EC) |
| return false; |
| return true; |
| } |
| |
| return false; |
| } |
| |
| // When clang crashes, produce diagnostic information including the fully |
| // preprocessed source file(s). Request that the developer attach the |
| // diagnostic information to a bug report. |
| void Driver::generateCompilationDiagnostics(Compilation &C, |
| const Command &FailingCommand) { |
| if (C.getArgs().hasArg(options::OPT_fno_crash_diagnostics)) |
| return; |
| |
| // Don't try to generate diagnostics for link or dsymutil jobs. |
| if (FailingCommand.getCreator().isLinkJob() || |
| FailingCommand.getCreator().isDsymutilJob()) |
| return; |
| |
| // Print the version of the compiler. |
| PrintVersion(C, llvm::errs()); |
| |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "PLEASE submit a bug report to " BUG_REPORT_URL " and include the " |
| "crash backtrace, preprocessed source, and associated run script."; |
| |
| // Suppress driver output and emit preprocessor output to temp file. |
| Mode = CPPMode; |
| CCGenDiagnostics = true; |
| |
| // Save the original job command(s). |
| Command Cmd = FailingCommand; |
| |
| // Keep track of whether we produce any errors while trying to produce |
| // preprocessed sources. |
| DiagnosticErrorTrap Trap(Diags); |
| |
| // Suppress tool output. |
| C.initCompilationForDiagnostics(); |
| |
| // Construct the list of inputs. |
| InputList Inputs; |
| BuildInputs(C.getDefaultToolChain(), C.getArgs(), Inputs); |
| |
| for (InputList::iterator it = Inputs.begin(), ie = Inputs.end(); it != ie;) { |
| bool IgnoreInput = false; |
| |
| // Ignore input from stdin or any inputs that cannot be preprocessed. |
| // Check type first as not all linker inputs have a value. |
| if (types::getPreprocessedType(it->first) == types::TY_INVALID) { |
| IgnoreInput = true; |
| } else if (!strcmp(it->second->getValue(), "-")) { |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "Error generating preprocessed source(s) - " |
| "ignoring input from stdin."; |
| IgnoreInput = true; |
| } |
| |
| if (IgnoreInput) { |
| it = Inputs.erase(it); |
| ie = Inputs.end(); |
| } else { |
| ++it; |
| } |
| } |
| |
| if (Inputs.empty()) { |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "Error generating preprocessed source(s) - " |
| "no preprocessable inputs."; |
| return; |
| } |
| |
| // Don't attempt to generate preprocessed files if multiple -arch options are |
| // used, unless they're all duplicates. |
| llvm::StringSet<> ArchNames; |
| for (const Arg *A : C.getArgs()) { |
| if (A->getOption().matches(options::OPT_arch)) { |
| StringRef ArchName = A->getValue(); |
| ArchNames.insert(ArchName); |
| } |
| } |
| if (ArchNames.size() > 1) { |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "Error generating preprocessed source(s) - cannot generate " |
| "preprocessed source with multiple -arch options."; |
| return; |
| } |
| |
| // Construct the list of abstract actions to perform for this compilation. On |
| // Darwin OSes this uses the driver-driver and builds universal actions. |
| const ToolChain &TC = C.getDefaultToolChain(); |
| if (TC.getTriple().isOSBinFormatMachO()) |
| BuildUniversalActions(C, TC, Inputs); |
| else |
| BuildActions(C, C.getArgs(), Inputs, C.getActions()); |
| |
| BuildJobs(C); |
| |
| // If there were errors building the compilation, quit now. |
| if (Trap.hasErrorOccurred()) { |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "Error generating preprocessed source(s)."; |
| return; |
| } |
| |
| // Generate preprocessed output. |
| SmallVector<std::pair<int, const Command *>, 4> FailingCommands; |
| C.ExecuteJobs(C.getJobs(), FailingCommands); |
| |
| // If any of the preprocessing commands failed, clean up and exit. |
| if (!FailingCommands.empty()) { |
| if (!isSaveTempsEnabled()) |
| C.CleanupFileList(C.getTempFiles(), true); |
| |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "Error generating preprocessed source(s)."; |
| return; |
| } |
| |
| const ArgStringList &TempFiles = C.getTempFiles(); |
| if (TempFiles.empty()) { |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "Error generating preprocessed source(s)."; |
| return; |
| } |
| |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "\n********************\n\n" |
| "PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:\n" |
| "Preprocessed source(s) and associated run script(s) are located at:"; |
| |
| SmallString<128> VFS; |
| SmallString<128> ReproCrashFilename; |
| for (const char *TempFile : TempFiles) { |
| Diag(clang::diag::note_drv_command_failed_diag_msg) << TempFile; |
| if (ReproCrashFilename.empty()) { |
| ReproCrashFilename = TempFile; |
| llvm::sys::path::replace_extension(ReproCrashFilename, ".crash"); |
| } |
| if (StringRef(TempFile).endswith(".cache")) { |
| // In some cases (modules) we'll dump extra data to help with reproducing |
| // the crash into a directory next to the output. |
| VFS = llvm::sys::path::filename(TempFile); |
| llvm::sys::path::append(VFS, "vfs", "vfs.yaml"); |
| } |
| } |
| |
| // Assume associated files are based off of the first temporary file. |
| CrashReportInfo CrashInfo(TempFiles[0], VFS); |
| |
| std::string Script = CrashInfo.Filename.rsplit('.').first.str() + ".sh"; |
| std::error_code EC; |
| llvm::raw_fd_ostream ScriptOS(Script, EC, llvm::sys::fs::F_Excl); |
| if (EC) { |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "Error generating run script: " + Script + " " + EC.message(); |
| } else { |
| ScriptOS << "# Crash reproducer for " << getClangFullVersion() << "\n" |
| << "# Driver args: "; |
| printArgList(ScriptOS, C.getInputArgs()); |
| ScriptOS << "# Original command: "; |
| Cmd.Print(ScriptOS, "\n", /*Quote=*/true); |
| Cmd.Print(ScriptOS, "\n", /*Quote=*/true, &CrashInfo); |
| Diag(clang::diag::note_drv_command_failed_diag_msg) << Script; |
| } |
| |
| // On darwin, provide information about the .crash diagnostic report. |
| if (llvm::Triple(llvm::sys::getProcessTriple()).isOSDarwin()) { |
| SmallString<128> CrashDiagDir; |
| if (getCrashDiagnosticFile(ReproCrashFilename, CrashDiagDir)) { |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << ReproCrashFilename.str(); |
| } else { // Suggest a directory for the user to look for .crash files. |
| llvm::sys::path::append(CrashDiagDir, Name); |
| CrashDiagDir += "_<YYYY-MM-DD-HHMMSS>_<hostname>.crash"; |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "Crash backtrace is located in"; |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << CrashDiagDir.str(); |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "(choose the .crash file that corresponds to your crash)"; |
| } |
| } |
| |
| for (const auto &A : C.getArgs().filtered(options::OPT_frewrite_map_file, |
| options::OPT_frewrite_map_file_EQ)) |
| Diag(clang::diag::note_drv_command_failed_diag_msg) << A->getValue(); |
| |
| Diag(clang::diag::note_drv_command_failed_diag_msg) |
| << "\n\n********************"; |
| } |
| |
| void Driver::setUpResponseFiles(Compilation &C, Command &Cmd) { |
| // Since commandLineFitsWithinSystemLimits() may underestimate system's capacity |
| // if the tool does not support response files, there is a chance/ that things |
| // will just work without a response file, so we silently just skip it. |
| if (Cmd.getCreator().getResponseFilesSupport() == Tool::RF_None || |
| llvm::sys::commandLineFitsWithinSystemLimits(Cmd.getExecutable(), Cmd.getArguments())) |
| return; |
| |
| std::string TmpName = GetTemporaryPath("response", "txt"); |
| Cmd.setResponseFile( |
| C.addTempFile(C.getArgs().MakeArgString(TmpName.c_str()))); |
| } |
| |
| int Driver::ExecuteCompilation( |
| Compilation &C, |
| SmallVectorImpl<std::pair<int, const Command *>> &FailingCommands) { |
| // Just print if -### was present. |
| if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) { |
| C.getJobs().Print(llvm::errs(), "\n", true); |
| return 0; |
| } |
| |
| // If there were errors building the compilation, quit now. |
| if (Diags.hasErrorOccurred()) |
| return 1; |
| |
| // Set up response file names for each command, if necessary |
| for (auto &Job : C.getJobs()) |
| setUpResponseFiles(C, Job); |
| |
| C.ExecuteJobs(C.getJobs(), FailingCommands); |
| |
| // Remove temp files. |
| C.CleanupFileList(C.getTempFiles()); |
| |
| // If the command succeeded, we are done. |
| if (FailingCommands.empty()) |
| return 0; |
| |
| // Otherwise, remove result files and print extra information about abnormal |
| // failures. |
| for (const auto &CmdPair : FailingCommands) { |
| int Res = CmdPair.first; |
| const Command *FailingCommand = CmdPair.second; |
| |
| // Remove result files if we're not saving temps. |
| if (!isSaveTempsEnabled()) { |
| const JobAction *JA = cast<JobAction>(&FailingCommand->getSource()); |
| C.CleanupFileMap(C.getResultFiles(), JA, true); |
| |
| // Failure result files are valid unless we crashed. |
| if (Res < 0) |
| C.CleanupFileMap(C.getFailureResultFiles(), JA, true); |
| } |
| |
| // Print extra information about abnormal failures, if possible. |
| // |
| // This is ad-hoc, but we don't want to be excessively noisy. If the result |
| // status was 1, assume the command failed normally. In particular, if it |
| // was the compiler then assume it gave a reasonable error code. Failures |
| // in other tools are less common, and they generally have worse |
| // diagnostics, so always print the diagnostic there. |
| const Tool &FailingTool = FailingCommand->getCreator(); |
| |
| if (!FailingCommand->getCreator().hasGoodDiagnostics() || Res != 1) { |
| // FIXME: See FIXME above regarding result code interpretation. |
| if (Res < 0) |
| Diag(clang::diag::err_drv_command_signalled) |
| << FailingTool.getShortName(); |
| else |
| Diag(clang::diag::err_drv_command_failed) << FailingTool.getShortName() |
| << Res; |
| } |
| } |
| return 0; |
| } |
| |
| void Driver::PrintHelp(bool ShowHidden) const { |
| unsigned IncludedFlagsBitmask; |
| unsigned ExcludedFlagsBitmask; |
| std::tie(IncludedFlagsBitmask, ExcludedFlagsBitmask) = |
| getIncludeExcludeOptionFlagMasks(); |
| |
| ExcludedFlagsBitmask |= options::NoDriverOption; |
| if (!ShowHidden) |
| ExcludedFlagsBitmask |= HelpHidden; |
| |
| getOpts().PrintHelp(llvm::outs(), Name.c_str(), DriverTitle.c_str(), |
| IncludedFlagsBitmask, ExcludedFlagsBitmask); |
| } |
| |
| void Driver::PrintVersion(const Compilation &C, raw_ostream &OS) const { |
| // FIXME: The following handlers should use a callback mechanism, we don't |
| // know what the client would like to do. |
| OS << getClangFullVersion() << '\n'; |
| const ToolChain &TC = C.getDefaultToolChain(); |
| OS << "Target: " << TC.getTripleString() << '\n'; |
| |
| // Print the threading model. |
| if (Arg *A = C.getArgs().getLastArg(options::OPT_mthread_model)) { |
| // Don't print if the ToolChain would have barfed on it already |
| if (TC.isThreadModelSupported(A->getValue())) |
| OS << "Thread model: " << A->getValue(); |
| } else |
| OS << "Thread model: " << TC.getThreadModel(); |
| OS << '\n'; |
| |
| // Print out the install directory. |
| OS << "InstalledDir: " << InstalledDir << '\n'; |
| } |
| |
| /// PrintDiagnosticCategories - Implement the --print-diagnostic-categories |
| /// option. |
| static void PrintDiagnosticCategories(raw_ostream &OS) { |
| // Skip the empty category. |
| for (unsigned i = 1, max = DiagnosticIDs::getNumberOfCategories(); i != max; |
| ++i) |
| OS << i << ',' << DiagnosticIDs::getCategoryNameFromID(i) << '\n'; |
| } |
| |
| bool Driver::HandleImmediateArgs(const Compilation &C) { |
| // The order these options are handled in gcc is all over the place, but we |
| // don't expect inconsistencies w.r.t. that to matter in practice. |
| |
| if (C.getArgs().hasArg(options::OPT_dumpmachine)) { |
| llvm::outs() << C.getDefaultToolChain().getTripleString() << '\n'; |
| return false; |
| } |
| |
| if (C.getArgs().hasArg(options::OPT_dumpversion)) { |
| // Since -dumpversion is only implemented for pedantic GCC compatibility, we |
| // return an answer which matches our definition of __VERSION__. |
| // |
| // If we want to return a more correct answer some day, then we should |
| // introduce a non-pedantically GCC compatible mode to Clang in which we |
| // provide sensible definitions for -dumpversion, __VERSION__, etc. |
| llvm::outs() << "4.2.1\n"; |
| return false; |
| } |
| |
| if (C.getArgs().hasArg(options::OPT__print_diagnostic_categories)) { |
| PrintDiagnosticCategories(llvm::outs()); |
| return false; |
| } |
| |
| if (C.getArgs().hasArg(options::OPT_help) || |
| C.getArgs().hasArg(options::OPT__help_hidden)) { |
| PrintHelp(C.getArgs().hasArg(options::OPT__help_hidden)); |
| return false; |
| } |
| |
| if (C.getArgs().hasArg(options::OPT__version)) { |
| // Follow gcc behavior and use stdout for --version and stderr for -v. |
| PrintVersion(C, llvm::outs()); |
| return false; |
| } |
| |
| if (C.getArgs().hasArg(options::OPT_v) || |
| C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) { |
| PrintVersion(C, llvm::errs()); |
| SuppressMissingInputWarning = true; |
| } |
| |
| const ToolChain &TC = C.getDefaultToolChain(); |
| |
| if (C.getArgs().hasArg(options::OPT_v)) |
| TC.printVerboseInfo(llvm::errs()); |
| |
| if (C.getArgs().hasArg(options::OPT_print_search_dirs)) { |
| llvm::outs() << "programs: ="; |
| bool separator = false; |
| for (const std::string &Path : TC.getProgramPaths()) { |
| if (separator) |
| llvm::outs() << ':'; |
| llvm::outs() << Path; |
| separator = true; |
| } |
| llvm::outs() << "\n"; |
| llvm::outs() << "libraries: =" << ResourceDir; |
| |
| StringRef sysroot = C.getSysRoot(); |
| |
| for (const std::string &Path : TC.getFilePaths()) { |
| // Always print a separator. ResourceDir was the first item shown. |
| llvm::outs() << ':'; |
| // Interpretation of leading '=' is needed only for NetBSD. |
| if (Path[0] == '=') |
| llvm::outs() << sysroot << Path.substr(1); |
| else |
| llvm::outs() << Path; |
| } |
| llvm::outs() << "\n"; |
| return false; |
| } |
| |
| // FIXME: The following handlers should use a callback mechanism, we don't |
| // know what the client would like to do. |
| if (Arg *A = C.getArgs().getLastArg(options::OPT_print_file_name_EQ)) { |
| llvm::outs() << GetFilePath(A->getValue(), TC) << "\n"; |
| return false; |
| } |
| |
| if (Arg *A = C.getArgs().getLastArg(options::OPT_print_prog_name_EQ)) { |
| llvm::outs() << GetProgramPath(A->getValue(), TC) << "\n"; |
| return false; |
| } |
| |
| if (C.getArgs().hasArg(options::OPT_print_libgcc_file_name)) { |
| llvm::outs() << GetFilePath("libgcc.a", TC) << "\n"; |
| return false; |
| } |
| |
| if (C.getArgs().hasArg(options::OPT_print_multi_lib)) { |
| for (const Multilib &Multilib : TC.getMultilibs()) |
| llvm::outs() << Multilib << "\n"; |
| return false; |
| } |
| |
| if (C.getArgs().hasArg(options::OPT_print_multi_directory)) { |
| for (const Multilib &Multilib : TC.getMultilibs()) { |
| if (Multilib.gccSuffix().empty()) |
| llvm::outs() << ".\n"; |
| else { |
| StringRef Suffix(Multilib.gccSuffix()); |
| assert(Suffix.front() == '/'); |
| llvm::outs() << Suffix.substr(1) << "\n"; |
| } |
| } |
| return false; |
| } |
| return true; |
| } |
| |
| // Display an action graph human-readably. Action A is the "sink" node |
| // and latest-occuring action. Traversal is in pre-order, visiting the |
| // inputs to each action before printing the action itself. |
| static unsigned PrintActions1(const Compilation &C, Action *A, |
| std::map<Action *, unsigned> &Ids) { |
| if (Ids.count(A)) // A was already visited. |
| return Ids[A]; |
| |
| std::string str; |
| llvm::raw_string_ostream os(str); |
| |
| os << Action::getClassName(A->getKind()) << ", "; |
| if (InputAction *IA = dyn_cast<InputAction>(A)) { |
| os << "\"" << IA->getInputArg().getValue() << "\""; |
| } else if (BindArchAction *BIA = dyn_cast<BindArchAction>(A)) { |
| os << '"' << BIA->getArchName() << '"' << ", {" |
| << PrintActions1(C, *BIA->input_begin(), Ids) << "}"; |
| } else if (OffloadAction *OA = dyn_cast<OffloadAction>(A)) { |
| bool IsFirst = true; |
| OA->doOnEachDependence( |
| [&](Action *A, const ToolChain *TC, const char *BoundArch) { |
| // E.g. for two CUDA device dependences whose bound arch is sm_20 and |
| // sm_35 this will generate: |
| // "cuda-device" (nvptx64-nvidia-cuda:sm_20) {#ID}, "cuda-device" |
| // (nvptx64-nvidia-cuda:sm_35) {#ID} |
| if (!IsFirst) |
| os << ", "; |
| os << '"'; |
| if (TC) |
| os << A->getOffloadingKindPrefix(); |
| else |
| os << "host"; |
| os << " ("; |
| os << TC->getTriple().normalize(); |
| |
| if (BoundArch) |
| os << ":" << BoundArch; |
| os << ")"; |
| os << '"'; |
| os << " {" << PrintActions1(C, A, Ids) << "}"; |
| IsFirst = false; |
| }); |
| } else { |
| const ActionList *AL = &A->getInputs(); |
| |
| if (AL->size()) { |
| const char *Prefix = "{"; |
| for (Action *PreRequisite : *AL) { |
| os << Prefix << PrintActions1(C, PreRequisite, Ids); |
| Prefix = ", "; |
| } |
| os << "}"; |
| } else |
| os << "{}"; |
| } |
| |
| // Append offload info for all options other than the offloading action |
| // itself (e.g. (cuda-device, sm_20) or (cuda-host)). |
| std::string offload_str; |
| llvm::raw_string_ostream offload_os(offload_str); |
| if (!isa<OffloadAction>(A)) { |
| auto S = A->getOffloadingKindPrefix(); |
| if (!S.empty()) { |
| offload_os << ", (" << S; |
| if (A->getOffloadingArch()) |
| offload_os << ", " << A->getOffloadingArch(); |
| offload_os << ")"; |
| } |
| } |
| |
| unsigned Id = Ids.size(); |
| Ids[A] = Id; |
| llvm::errs() << Id << ": " << os.str() << ", " |
| << types::getTypeName(A->getType()) << offload_os.str() << "\n"; |
| |
| return Id; |
| } |
| |
| // Print the action graphs in a compilation C. |
| // For example "clang -c file1.c file2.c" is composed of two subgraphs. |
| void Driver::PrintActions(const Compilation &C) const { |
| std::map<Action *, unsigned> Ids; |
| for (Action *A : C.getActions()) |
| PrintActions1(C, A, Ids); |
| } |
| |
| /// \brief Check whether the given input tree contains any compilation or |
| /// assembly actions. |
| static bool ContainsCompileOrAssembleAction(const Action *A) { |
| if (isa<CompileJobAction>(A) || isa<BackendJobAction>(A) || |
| isa<AssembleJobAction>(A)) |
| return true; |
| |
| for (const Action *Input : A->inputs()) |
| if (ContainsCompileOrAssembleAction(Input)) |
| return true; |
| |
| return false; |
| } |
| |
| void Driver::BuildUniversalActions(Compilation &C, const ToolChain &TC, |
| const InputList &BAInputs) const { |
| DerivedArgList &Args = C.getArgs(); |
| ActionList &Actions = C.getActions(); |
| llvm::PrettyStackTraceString CrashInfo("Building universal build actions"); |
| // Collect the list of architectures. Duplicates are allowed, but should only |
| // be handled once (in the order seen). |
| llvm::StringSet<> ArchNames; |
| SmallVector<const char *, 4> Archs; |
| for (Arg *A : Args) { |
| if (A->getOption().matches(options::OPT_arch)) { |
| // Validate the option here; we don't save the type here because its |
| // particular spelling may participate in other driver choices. |
| llvm::Triple::ArchType Arch = |
| tools::darwin::getArchTypeForMachOArchName(A->getValue()); |
| if (Arch == llvm::Triple::UnknownArch) { |
| Diag(clang::diag::err_drv_invalid_arch_name) << A->getAsString(Args); |
| continue; |
| } |
| |
| A->claim(); |
| if (ArchNames.insert(A->getValue()).second) |
| Archs.push_back(A->getValue()); |
| } |
| } |
| |
| // When there is no explicit arch for this platform, make sure we still bind |
| // the architecture (to the default) so that -Xarch_ is handled correctly. |
| if (!Archs.size()) |
| Archs.push_back(Args.MakeArgString(TC.getDefaultUniversalArchName())); |
| |
| ActionList SingleActions; |
| BuildActions(C, Args, BAInputs, SingleActions); |
| |
| // Add in arch bindings for every top level action, as well as lipo and |
| // dsymutil steps if needed. |
| for (Action* Act : SingleActions) { |
| // Make sure we can lipo this kind of output. If not (and it is an actual |
| // output) then we disallow, since we can't create an output file with the |
| // right name without overwriting it. We could remove this oddity by just |
| // changing the output names to include the arch, which would also fix |
| // -save-temps. Compatibility wins for now. |
| |
| if (Archs.size() > 1 && !types::canLipoType(Act->getType())) |
| Diag(clang::diag::err_drv_invalid_output_with_multiple_archs) |
| << types::getTypeName(Act->getType()); |
| |
| ActionList Inputs; |
| for (unsigned i = 0, e = Archs.size(); i != e; ++i) |
| Inputs.push_back(C.MakeAction<BindArchAction>(Act, Archs[i])); |
| |
| // Lipo if necessary, we do it this way because we need to set the arch flag |
| // so that -Xarch_ gets overwritten. |
| if (Inputs.size() == 1 || Act->getType() == types::TY_Nothing) |
| Actions.append(Inputs.begin(), Inputs.end()); |
| else |
| Actions.push_back(C.MakeAction<LipoJobAction>(Inputs, Act->getType())); |
| |
| // Handle debug info queries. |
| Arg *A = Args.getLastArg(options::OPT_g_Group); |
| if (A && !A->getOption().matches(options::OPT_g0) && |
| !A->getOption().matches(options::OPT_gstabs) && |
| ContainsCompileOrAssembleAction(Actions.back())) { |
| |
| // Add a 'dsymutil' step if necessary, when debug info is enabled and we |
| // have a compile input. We need to run 'dsymutil' ourselves in such cases |
| // because the debug info will refer to a temporary object file which |
| // will be removed at the end of the compilation process. |
| if (Act->getType() == types::TY_Image) { |
| ActionList Inputs; |
| Inputs.push_back(Actions.back()); |
| Actions.pop_back(); |
| Actions.push_back( |
| C.MakeAction<DsymutilJobAction>(Inputs, types::TY_dSYM)); |
| } |
| |
| // Verify the debug info output. |
| if (Args.hasArg(options::OPT_verify_debug_info)) { |
| Action* LastAction = Actions.back(); |
| Actions.pop_back(); |
| Actions.push_back(C.MakeAction<VerifyDebugInfoJobAction>( |
| LastAction, types::TY_Nothing)); |
| } |
| } |
| } |
| } |
| |
| /// \brief Check that the file referenced by Value exists. If it doesn't, |
| /// issue a diagnostic and return false. |
| static bool DiagnoseInputExistence(const Driver &D, const DerivedArgList &Args, |
| StringRef Value, types::ID Ty) { |
| if (!D.getCheckInputsExist()) |
| return true; |
| |
| // stdin always exists. |
| if (Value == "-") |
| return true; |
| |
| SmallString<64> Path(Value); |
| if (Arg *WorkDir = Args.getLastArg(options::OPT_working_directory)) { |
| if (!llvm::sys::path::is_absolute(Path)) { |
| SmallString<64> Directory(WorkDir->getValue()); |
| llvm::sys::path::append(Directory, Value); |
| Path.assign(Directory); |
| } |
| } |
| |
| if (llvm::sys::fs::exists(Twine(Path))) |
| return true; |
| |
| if (D.IsCLMode()) { |
| if (!llvm::sys::path::is_absolute(Twine(Path)) && |
| llvm::sys::Process::FindInEnvPath("LIB", Value)) |
| return true; |
| |
| if (Args.hasArg(options::OPT__SLASH_link) && Ty == types::TY_Object) { |
| // Arguments to the /link flag might cause the linker to search for object |
| // and library files in paths we don't know about. Don't error in such |
| // cases. |
| return true; |
| } |
| } |
| |
| D.Diag(clang::diag::err_drv_no_such_file) << Path; |
| return false; |
| } |
| |
| // Construct a the list of inputs and their types. |
| void Driver::BuildInputs(const ToolChain &TC, DerivedArgList &Args, |
| InputList &Inputs) const { |
| // Track the current user specified (-x) input. We also explicitly track the |
| // argument used to set the type; we only want to claim the type when we |
| // actually use it, so we warn about unused -x arguments. |
| types::ID InputType = types::TY_Nothing; |
| Arg *InputTypeArg = nullptr; |
| |
| // The last /TC or /TP option sets the input type to C or C++ globally. |
| if (Arg *TCTP = Args.getLastArgNoClaim(options::OPT__SLASH_TC, |
| options::OPT__SLASH_TP)) { |
| InputTypeArg = TCTP; |
| InputType = TCTP->getOption().matches(options::OPT__SLASH_TC) |
| ? types::TY_C |
| : types::TY_CXX; |
| |
| arg_iterator it = |
| Args.filtered_begin(options::OPT__SLASH_TC, options::OPT__SLASH_TP); |
| const arg_iterator ie = Args.filtered_end(); |
| Arg *Previous = *it++; |
| bool ShowNote = false; |
| while (it != ie) { |
| Diag(clang::diag::warn_drv_overriding_flag_option) |
| << Previous->getSpelling() << (*it)->getSpelling(); |
| Previous = *it++; |
| ShowNote = true; |
| } |
| if (ShowNote) |
| Diag(clang::diag::note_drv_t_option_is_global); |
| |
| // No driver mode exposes -x and /TC or /TP; we don't support mixing them. |
| assert(!Args.hasArg(options::OPT_x) && "-x and /TC or /TP is not allowed"); |
| } |
| |
| for (Arg *A : Args) { |
| if (A->getOption().getKind() == Option::InputClass) { |
| const char *Value = A->getValue(); |
| types::ID Ty = types::TY_INVALID; |
| |
| // Infer the input type if necessary. |
| if (InputType == types::TY_Nothing) { |
| // If there was an explicit arg for this, claim it. |
| if (InputTypeArg) |
| InputTypeArg->claim(); |
| |
| // stdin must be handled specially. |
| if (memcmp(Value, "-", 2) == 0) { |
| // If running with -E, treat as a C input (this changes the builtin |
| // macros, for example). This may be overridden by -ObjC below. |
| // |
| // Otherwise emit an error but still use a valid type to avoid |
| // spurious errors (e.g., no inputs). |
| if (!Args.hasArgNoClaim(options::OPT_E) && !CCCIsCPP()) |
| Diag(IsCLMode() ? clang::diag::err_drv_unknown_stdin_type_clang_cl |
| : clang::diag::err_drv_unknown_stdin_type); |
| Ty = types::TY_C; |
| } else { |
| // Otherwise lookup by extension. |
| // Fallback is C if invoked as C preprocessor or Object otherwise. |
| // We use a host hook here because Darwin at least has its own |
| // idea of what .s is. |
| if (const char *Ext = strrchr(Value, '.')) |
| Ty = TC.LookupTypeForExtension(Ext + 1); |
| |
| if (Ty == types::TY_INVALID) { |
| if (CCCIsCPP()) |
| Ty = types::TY_C; |
| else |
| Ty = types::TY_Object; |
| } |
| |
| // If the driver is invoked as C++ compiler (like clang++ or c++) it |
| // should autodetect some input files as C++ for g++ compatibility. |
| if (CCCIsCXX()) { |
| types::ID OldTy = Ty; |
| Ty = types::lookupCXXTypeForCType(Ty); |
| |
| if (Ty != OldTy) |
| Diag(clang::diag::warn_drv_treating_input_as_cxx) |
| << getTypeName(OldTy) << getTypeName(Ty); |
| } |
| } |
| |
| // -ObjC and -ObjC++ override the default language, but only for "source |
| // files". We just treat everything that isn't a linker input as a |
| // source file. |
| // |
| // FIXME: Clean this up if we move the phase sequence into the type. |
| if (Ty != types::TY_Object) { |
| if (Args.hasArg(options::OPT_ObjC)) |
| Ty = types::TY_ObjC; |
| else if (Args.hasArg(options::OPT_ObjCXX)) |
| Ty = types::TY_ObjCXX; |
| } |
| } else { |
| assert(InputTypeArg && "InputType set w/o InputTypeArg"); |
| if (!InputTypeArg->getOption().matches(options::OPT_x)) { |
| // If emulating cl.exe, make sure that /TC and /TP don't affect input |
| // object files. |
| const char *Ext = strrchr(Value, '.'); |
| if (Ext && TC.LookupTypeForExtension(Ext + 1) == types::TY_Object) |
| Ty = types::TY_Object; |
| } |
| if (Ty == types::TY_INVALID) { |
| Ty = InputType; |
| InputTypeArg->claim(); |
| } |
| } |
| |
| if (DiagnoseInputExistence(*this, Args, Value, Ty)) |
| Inputs.push_back(std::make_pair(Ty, A)); |
| |
| } else if (A->getOption().matches(options::OPT__SLASH_Tc)) { |
| StringRef Value = A->getValue(); |
| if (DiagnoseInputExistence(*this, Args, Value, types::TY_C)) { |
| Arg *InputArg = MakeInputArg(Args, Opts, A->getValue()); |
| Inputs.push_back(std::make_pair(types::TY_C, InputArg)); |
| } |
| A->claim(); |
| } else if (A->getOption().matches(options::OPT__SLASH_Tp)) { |
| StringRef Value = A->getValue(); |
| if (DiagnoseInputExistence(*this, Args, Value, types::TY_CXX)) { |
| Arg *InputArg = MakeInputArg(Args, Opts, A->getValue()); |
| Inputs.push_back(std::make_pair(types::TY_CXX, InputArg)); |
| } |
| A->claim(); |
| } else if (A->getOption().hasFlag(options::LinkerInput)) { |
| // Just treat as object type, we could make a special type for this if |
| // necessary. |
| Inputs.push_back(std::make_pair(types::TY_Object, A)); |
| |
| } else if (A->getOption().matches(options::OPT_x)) { |
| InputTypeArg = A; |
| InputType = types::lookupTypeForTypeSpecifier(A->getValue()); |
| A->claim(); |
| |
| // Follow gcc behavior and treat as linker input for invalid -x |
| // options. Its not clear why we shouldn't just revert to unknown; but |
| // this isn't very important, we might as well be bug compatible. |
| if (!InputType) { |
| Diag(clang::diag::err_drv_unknown_language) << A->getValue(); |
| InputType = types::TY_Object; |
| } |
| } |
| } |
| if (CCCIsCPP() && Inputs.empty()) { |
| // If called as standalone preprocessor, stdin is processed |
| // if no other input is present. |
| Arg *A = MakeInputArg(Args, Opts, "-"); |
| Inputs.push_back(std::make_pair(types::TY_C, A)); |
| } |
| } |
| |
| // For each unique --cuda-gpu-arch= argument creates a TY_CUDA_DEVICE |
| // input action and then wraps each in CudaDeviceAction paired with |
| // appropriate GPU arch name. In case of partial (i.e preprocessing |
| // only) or device-only compilation, each device action is added to /p |
| // Actions and /p Current is released. Otherwise the function creates |
| // and returns a new CudaHostAction which wraps /p Current and device |
| // side actions. |
| static Action *buildCudaActions(Compilation &C, DerivedArgList &Args, |
| const Arg *InputArg, Action *HostAction, |
| ActionList &Actions) { |
| Arg *PartialCompilationArg = Args.getLastArg( |
| options::OPT_cuda_host_only, options::OPT_cuda_device_only, |
| options::OPT_cuda_compile_host_device); |
| bool CompileHostOnly = |
| PartialCompilationArg && |
| PartialCompilationArg->getOption().matches(options::OPT_cuda_host_only); |
| bool CompileDeviceOnly = |
| PartialCompilationArg && |
| PartialCompilationArg->getOption().matches(options::OPT_cuda_device_only); |
| const ToolChain *HostTC = C.getSingleOffloadToolChain<Action::OFK_Host>(); |
| assert(HostTC && "No toolchain for host compilation."); |
| if (HostTC->getTriple().isNVPTX()) { |
| // We do not support targeting NVPTX for host compilation. Throw |
| // an error and abort pipeline construction early so we don't trip |
| // asserts that assume device-side compilation. |
| C.getDriver().Diag(diag::err_drv_cuda_nvptx_host); |
| return nullptr; |
| } |
| |
| if (CompileHostOnly) { |
| OffloadAction::HostDependence HDep(*HostAction, *HostTC, |
| /*BoundArch=*/nullptr, Action::OFK_Cuda); |
| return C.MakeAction<OffloadAction>(HDep); |
| } |
| |
| // Collect all cuda_gpu_arch parameters, removing duplicates. |
| SmallVector<CudaArch, 4> GpuArchList; |
| llvm::SmallSet<CudaArch, 4> GpuArchs; |
| for (Arg *A : Args) { |
| if (!A->getOption().matches(options::OPT_cuda_gpu_arch_EQ)) |
| continue; |
| A->claim(); |
| |
| const auto &ArchStr = A->getValue(); |
| CudaArch Arch = StringToCudaArch(ArchStr); |
| if (Arch == CudaArch::UNKNOWN) |
| C.getDriver().Diag(clang::diag::err_drv_cuda_bad_gpu_arch) << ArchStr; |
| else if (GpuArchs.insert(Arch).second) |
| GpuArchList.push_back(Arch); |
| } |
| |
| // Default to sm_20 which is the lowest common denominator for supported GPUs. |
| // sm_20 code should work correctly, if suboptimally, on all newer GPUs. |
| if (GpuArchList.empty()) |
| GpuArchList.push_back(CudaArch::SM_20); |
| |
| // Replicate inputs for each GPU architecture. |
| Driver::InputList CudaDeviceInputs; |
| for (unsigned I = 0, E = GpuArchList.size(); I != E; ++I) |
| CudaDeviceInputs.push_back(std::make_pair(types::TY_CUDA_DEVICE, InputArg)); |
| |
| // Build actions for all device inputs. |
| ActionList CudaDeviceActions; |
| C.getDriver().BuildActions(C, Args, CudaDeviceInputs, CudaDeviceActions); |
| assert(GpuArchList.size() == CudaDeviceActions.size() && |
| "Failed to create actions for all devices"); |
| |
| // Check whether any of device actions stopped before they could generate PTX. |
| bool PartialCompilation = |
| llvm::any_of(CudaDeviceActions, [](const Action *a) { |
| return a->getKind() != Action::AssembleJobClass; |
| }); |
| |
| const ToolChain *CudaTC = C.getSingleOffloadToolChain<Action::OFK_Cuda>(); |
| |
| // Figure out what to do with device actions -- pass them as inputs to the |
| // host action or run each of them independently. |
| if (PartialCompilation || CompileDeviceOnly) { |
| // In case of partial or device-only compilation results of device actions |
| // are not consumed by the host action device actions have to be added to |
| // top-level actions list with AtTopLevel=true and run independently. |
| |
| // -o is ambiguous if we have more than one top-level action. |
| if (Args.hasArg(options::OPT_o) && |
| (!CompileDeviceOnly || GpuArchList.size() > 1)) { |
| C.getDriver().Diag( |
| clang::diag::err_drv_output_argument_with_multiple_files); |
| return nullptr; |
| } |
| |
| for (unsigned I = 0, E = GpuArchList.size(); I != E; ++I) { |
| OffloadAction::DeviceDependences DDep; |
| DDep.add(*CudaDeviceActions[I], *CudaTC, CudaArchToString(GpuArchList[I]), |
| Action::OFK_Cuda); |
| Actions.push_back( |
| C.MakeAction<OffloadAction>(DDep, CudaDeviceActions[I]->getType())); |
| } |
| // Kill host action in case of device-only compilation. |
| if (CompileDeviceOnly) |
| return nullptr; |
| return HostAction; |
| } |
| |
| // If we're not a partial or device-only compilation, we compile each arch to |
| // ptx and assemble to cubin, then feed the cubin *and* the ptx into a device |
| // "link" action, which uses fatbinary to combine these cubins into one |
| // fatbin. The fatbin is then an input to the host compilation. |
| ActionList DeviceActions; |
| for (unsigned I = 0, E = GpuArchList.size(); I != E; ++I) { |
| Action* AssembleAction = CudaDeviceActions[I]; |
| assert(AssembleAction->getType() == types::TY_Object); |
| assert(AssembleAction->getInputs().size() == 1); |
| |
| Action* BackendAction = AssembleAction->getInputs()[0]; |
| assert(BackendAction->getType() == types::TY_PP_Asm); |
| |
| for (auto &A : {AssembleAction, BackendAction}) { |
| OffloadAction::DeviceDependences DDep; |
| DDep.add(*A, *CudaTC, CudaArchToString(GpuArchList[I]), Action::OFK_Cuda); |
| DeviceActions.push_back(C.MakeAction<OffloadAction>(DDep, A->getType())); |
| } |
| } |
| auto FatbinAction = |
| C.MakeAction<LinkJobAction>(DeviceActions, types::TY_CUDA_FATBIN); |
| |
| // Return a new host action that incorporates original host action and all |
| // device actions. |
| OffloadAction::HostDependence HDep(*HostAction, *HostTC, |
| /*BoundArch=*/nullptr, Action::OFK_Cuda); |
| OffloadAction::DeviceDependences DDep; |
| DDep.add(*FatbinAction, *CudaTC, /*BoundArch=*/nullptr, Action::OFK_Cuda); |
| return C.MakeAction<OffloadAction>(HDep, DDep); |
| } |
| |
| void Driver::BuildActions(Compilation &C, DerivedArgList &Args, |
| const InputList &Inputs, ActionList &Actions) const { |
| llvm::PrettyStackTraceString CrashInfo("Building compilation actions"); |
| |
| if (!SuppressMissingInputWarning && Inputs.empty()) { |
| Diag(clang::diag::err_drv_no_input_files); |
| return; |
| } |
| |
| Arg *FinalPhaseArg; |
| phases::ID FinalPhase = getFinalPhase(Args, &FinalPhaseArg); |
| |
| if (FinalPhase == phases::Link && Args.hasArg(options::OPT_emit_llvm)) { |
| Diag(clang::diag::err_drv_emit_llvm_link); |
| } |
| |
| // Reject -Z* at the top level, these options should never have been exposed |
| // by gcc. |
| if (Arg *A = Args.getLastArg(options::OPT_Z_Joined)) |
| Diag(clang::diag::err_drv_use_of_Z_option) << A->getAsString(Args); |
| |
| // Diagnose misuse of /Fo. |
| if (Arg *A = Args.getLastArg(options::OPT__SLASH_Fo)) { |
| StringRef V = A->getValue(); |
| if (Inputs.size() > 1 && !V.empty() && |
| !llvm::sys::path::is_separator(V.back())) { |
| // Check whether /Fo tries to name an output file for multiple inputs. |
| Diag(clang::diag::err_drv_out_file_argument_with_multiple_sources) |
| << A->getSpelling() << V; |
| Args.eraseArg(options::OPT__SLASH_Fo); |
| } |
| } |
| |
| // Diagnose misuse of /Fa. |
| if (Arg *A = Args.getLastArg(options::OPT__SLASH_Fa)) { |
| StringRef V = A->getValue(); |
| if (Inputs.size() > 1 && !V.empty() && |
| !llvm::sys::path::is_separator(V.back())) { |
| // Check whether /Fa tries to name an asm file for multiple inputs. |
| Diag(clang::diag::err_drv_out_file_argument_with_multiple_sources) |
| << A->getSpelling() << V; |
| Args.eraseArg(options::OPT__SLASH_Fa); |
| } |
| } |
| |
| // Diagnose misuse of /o. |
| if (Arg *A = Args.getLastArg(options::OPT__SLASH_o)) { |
| if (A->getValue()[0] == '\0') { |
| // It has to have a value. |
| Diag(clang::diag::err_drv_missing_argument) << A->getSpelling() << 1; |
| Args.eraseArg(options::OPT__SLASH_o); |
| } |
| } |
| |
| // Diagnose unsupported forms of /Yc /Yu. Ignore /Yc/Yu for now if: |
| // * no filename after it |
| // * both /Yc and /Yu passed but with different filenames |
| // * corresponding file not also passed as /FI |
| Arg *YcArg = Args.getLastArg(options::OPT__SLASH_Yc); |
| Arg *YuArg = Args.getLastArg(options::OPT__SLASH_Yu); |
| if (YcArg && YcArg->getValue()[0] == '\0') { |
| Diag(clang::diag::warn_drv_ycyu_no_arg_clang_cl) << YcArg->getSpelling(); |
| Args.eraseArg(options::OPT__SLASH_Yc); |
| YcArg = nullptr; |
| } |
| if (YuArg && YuArg->getValue()[0] == '\0') { |
| Diag(clang::diag::warn_drv_ycyu_no_arg_clang_cl) << YuArg->getSpelling(); |
| Args.eraseArg(options::OPT__SLASH_Yu); |
| YuArg = nullptr; |
| } |
| if (YcArg && YuArg && strcmp(YcArg->getValue(), YuArg->getValue()) != 0) { |
| Diag(clang::diag::warn_drv_ycyu_different_arg_clang_cl); |
| Args.eraseArg(options::OPT__SLASH_Yc); |
| Args.eraseArg(options::OPT__SLASH_Yu); |
| YcArg = YuArg = nullptr; |
| } |
| if (YcArg || YuArg) { |
| StringRef Val = YcArg ? YcArg->getValue() : YuArg->getValue(); |
| bool FoundMatchingInclude = false; |
| for (const Arg *Inc : Args.filtered(options::OPT_include)) { |
| // FIXME: Do case-insensitive matching and consider / and \ as equal. |
| if (Inc->getValue() == Val) |
| FoundMatchingInclude = true; |
| } |
| if (!FoundMatchingInclude) { |
| Diag(clang::diag::warn_drv_ycyu_no_fi_arg_clang_cl) |
| << (YcArg ? YcArg : YuArg)->getSpelling(); |
| Args.eraseArg(options::OPT__SLASH_Yc); |
| Args.eraseArg(options::OPT__SLASH_Yu); |
| YcArg = YuArg = nullptr; |
| } |
| } |
| if (YcArg && Inputs.size() > 1) { |
| Diag(clang::diag::warn_drv_yc_multiple_inputs_clang_cl); |
| Args.eraseArg(options::OPT__SLASH_Yc); |
| YcArg = nullptr; |
| } |
| if (Args.hasArg(options::OPT__SLASH_Y_)) { |
| // /Y- disables all pch handling. Rather than check for it everywhere, |
| // just remove clang-cl pch-related flags here. |
| Args.eraseArg(options::OPT__SLASH_Fp); |
| Args.eraseArg(options::OPT__SLASH_Yc); |
| Args.eraseArg(options::OPT__SLASH_Yu); |
| YcArg = YuArg = nullptr; |
| } |
| |
| // Track the host offload kinds used on this compilation. |
| unsigned CompilationActiveOffloadHostKinds = 0u; |
| |
| // Construct the actions to perform. |
| ActionList LinkerInputs; |
| |
| llvm::SmallVector<phases::ID, phases::MaxNumberOfPhases> PL; |
| for (auto &I : Inputs) { |
| types::ID InputType = I.first; |
| const Arg *InputArg = I.second; |
| |
| PL.clear(); |
| types::getCompilationPhases(InputType, PL); |
| |
| // If the first step comes after the final phase we are doing as part of |
| // this compilation, warn the user about it. |
| phases::ID InitialPhase = PL[0]; |
| if (InitialPhase > FinalPhase) { |
| // Claim here to avoid the more general unused warning. |
| InputArg->claim(); |
| |
| // Suppress all unused style warnings with -Qunused-arguments |
| if (Args.hasArg(options::OPT_Qunused_arguments)) |
| continue; |
| |
| // Special case when final phase determined by binary name, rather than |
| // by a command-line argument with a corresponding Arg. |
| if (CCCIsCPP()) |
| Diag(clang::diag::warn_drv_input_file_unused_by_cpp) |
| << InputArg->getAsString(Args) << getPhaseName(InitialPhase); |
| // Special case '-E' warning on a previously preprocessed file to make |
| // more sense. |
| else if (InitialPhase == phases::Compile && |
| FinalPhase == phases::Preprocess && |
| getPreprocessedType(InputType) == types::TY_INVALID) |
| Diag(clang::diag::warn_drv_preprocessed_input_file_unused) |
| << InputArg->getAsString(Args) << !!FinalPhaseArg |
| << (FinalPhaseArg ? FinalPhaseArg->getOption().getName() : ""); |
| else |
| Diag(clang::diag::warn_drv_input_file_unused) |
| << InputArg->getAsString(Args) << getPhaseName(InitialPhase) |
| << !!FinalPhaseArg |
| << (FinalPhaseArg ? FinalPhaseArg->getOption().getName() : ""); |
| continue; |
| } |
| |
| if (YcArg) { |
| // Add a separate precompile phase for the compile phase. |
| if (FinalPhase >= phases::Compile) { |
| llvm::SmallVector<phases::ID, phases::MaxNumberOfPhases> PCHPL; |
| types::getCompilationPhases(types::TY_CXXHeader, PCHPL); |
| Arg *PchInputArg = MakeInputArg(Args, Opts, YcArg->getValue()); |
| |
| // Build the pipeline for the pch file. |
| Action *ClangClPch = C.MakeAction<InputAction>(*PchInputArg, InputType); |
| for (phases::ID Phase : PCHPL) |
| ClangClPch = ConstructPhaseAction(C, Args, Phase, ClangClPch); |
| assert(ClangClPch); |
| Actions.push_back(ClangClPch); |
| // The driver currently exits after the first failed command. This |
| // relies on that behavior, to make sure if the pch generation fails, |
| // the main compilation won't run. |
| } |
| } |
| |
| phases::ID CudaInjectionPhase = |
| (phases::Compile < FinalPhase && |
| llvm::find(PL, phases::Compile) != PL.end()) |
| ? phases::Compile |
| : FinalPhase; |
| |
| // Track the host offload kinds used on this input. |
| unsigned InputActiveOffloadHostKinds = 0u; |
| |
| // Build the pipeline for this file. |
| Action *Current = C.MakeAction<InputAction>(*InputArg, InputType); |
| for (SmallVectorImpl<phases::ID>::iterator i = PL.begin(), e = PL.end(); |
| i != e; ++i) { |
| phases::ID Phase = *i; |
| |
| // We are done if this step is past what the user requested. |
| if (Phase > FinalPhase) |
| break; |
| |
| // Queue linker inputs. |
| if (Phase == phases::Link) { |
| assert((i + 1) == e && "linking must be final compilation step."); |
| LinkerInputs.push_back(Current); |
| Current = nullptr; |
| break; |
| } |
| |
| // Some types skip the assembler phase (e.g., llvm-bc), but we can't |
| // encode this in the steps because the intermediate type depends on |
| // arguments. Just special case here. |
| if (Phase == phases::Assemble && Current->getType() != types::TY_PP_Asm) |
| continue; |
| |
| // Otherwise construct the appropriate action. |
| Current = ConstructPhaseAction(C, Args, Phase, Current); |
| |
| if (InputType == types::TY_CUDA && Phase == CudaInjectionPhase) { |
| Current = buildCudaActions(C, Args, InputArg, Current, Actions); |
| if (!Current) |
| break; |
| |
| // We produced a CUDA action for this input, so the host has to support |
| // CUDA. |
| InputActiveOffloadHostKinds |= Action::OFK_Cuda; |
| CompilationActiveOffloadHostKinds |= Action::OFK_Cuda; |
| } |
| |
| if (Current->getType() == types::TY_Nothing) |
| break; |
| } |
| |
| // If we ended with something, add to the output list. Also, propagate the |
| // offload information to the top-level host action related with the current |
| // input. |
| if (Current) { |
| if (InputActiveOffloadHostKinds) |
| Current->propagateHostOffloadInfo(InputActiveOffloadHostKinds, |
| /*BoundArch=*/nullptr); |
| Actions.push_back(Current); |
| } |
| } |
| |
| // Add a link action if necessary and propagate the offload information for |
| // the current compilation. |
| if (!LinkerInputs.empty()) { |
| Actions.push_back( |
| C.MakeAction<LinkJobAction>(LinkerInputs, types::TY_Image)); |
| Actions.back()->propagateHostOffloadInfo(CompilationActiveOffloadHostKinds, |
| /*BoundArch=*/nullptr); |
| } |
| |
| // If we are linking, claim any options which are obviously only used for |
| // compilation. |
| if (FinalPhase == phases::Link && PL.size() == 1) { |
| Args.ClaimAllArgs(options::OPT_CompileOnly_Group); |
| Args.ClaimAllArgs(options::OPT_cl_compile_Group); |
| } |
| |
| // Claim ignored clang-cl options. |
| Args.ClaimAllArgs(options::OPT_cl_ignored_Group); |
| |
| // Claim --cuda-host-only and --cuda-compile-host-device, which may be passed |
| // to non-CUDA compilations and should not trigger warnings there. |
| Args.ClaimAllArgs(options::OPT_cuda_host_only); |
| Args.ClaimAllArgs(options::OPT_cuda_compile_host_device); |
| } |
| |
| Action *Driver::ConstructPhaseAction(Compilation &C, const ArgList &Args, |
| phases::ID Phase, Action *Input) const { |
| llvm::PrettyStackTraceString CrashInfo("Constructing phase actions"); |
| // Build the appropriate action. |
| switch (Phase) { |
| case phases::Link: |
| llvm_unreachable("link action invalid here."); |
| case phases::Preprocess: { |
| types::ID OutputTy; |
| // -{M, MM} alter the output type. |
| if (Args.hasArg(options::OPT_M, options::OPT_MM)) { |
| OutputTy = types::TY_Dependencies; |
| } else { |
| OutputTy = Input->getType(); |
| if (!Args.hasFlag(options::OPT_frewrite_includes, |
| options::OPT_fno_rewrite_includes, false) && |
| !CCGenDiagnostics) |
| OutputTy = types::getPreprocessedType(OutputTy); |
| assert(OutputTy != types::TY_INVALID && |
| "Cannot preprocess this input type!"); |
| } |
| return C.MakeAction<PreprocessJobAction>(Input, OutputTy); |
| } |
| case phases::Precompile: { |
| types::ID OutputTy = types::TY_PCH; |
| if (Args.hasArg(options::OPT_fsyntax_only)) { |
| // Syntax checks should not emit a PCH file |
| OutputTy = types::TY_Nothing; |
| } |
| return C.MakeAction<PrecompileJobAction>(Input, OutputTy); |
| } |
| case phases::Compile: { |
| if (Args.hasArg(options::OPT_fsyntax_only)) |
| return C.MakeAction<CompileJobAction>(Input, types::TY_Nothing); |
| if (Args.hasArg(options::OPT_rewrite_objc)) |
| return C.MakeAction<CompileJobAction>(Input, types::TY_RewrittenObjC); |
| if (Args.hasArg(options::OPT_rewrite_legacy_objc)) |
| return C.MakeAction<CompileJobAction>(Input, |
| types::TY_RewrittenLegacyObjC); |
| if (Args.hasArg(options::OPT__analyze, options::OPT__analyze_auto)) |
| return C.MakeAction<AnalyzeJobAction>(Input, types::TY_Plist); |
| if (Args.hasArg(options::OPT__migrate)) |
| return C.MakeAction<MigrateJobAction>(Input, types::TY_Remap); |
| if (Args.hasArg(options::OPT_emit_ast)) |
| return C.MakeAction<CompileJobAction>(Input, types::TY_AST); |
| if (Args.hasArg(options::OPT_module_file_info)) |
| return C.MakeAction<CompileJobAction>(Input, types::TY_ModuleFile); |
| if (Args.hasArg(options::OPT_verify_pch)) |
| return C.MakeAction<VerifyPCHJobAction>(Input, types::TY_Nothing); |
| return C.MakeAction<CompileJobAction>(Input, types::TY_LLVM_BC); |
| } |
| case phases::Backend: { |
| if (isUsingLTO()) { |
| types::ID Output = |
| Args.hasArg(options::OPT_S) ? types::TY_LTO_IR : types::TY_LTO_BC; |
| return C.MakeAction<BackendJobAction>(Input, Output); |
| } |
| if (Args.hasArg(options::OPT_emit_llvm)) { |
| types::ID Output = |
| Args.hasArg(options::OPT_S) ? types::TY_LLVM_IR : types::TY_LLVM_BC; |
| return C.MakeAction<BackendJobAction>(Input, Output); |
| } |
| return C.MakeAction<BackendJobAction>(Input, types::TY_PP_Asm); |
| } |
| case phases::Assemble: |
| return C.MakeAction<AssembleJobAction>(std::move(Input), types::TY_Object); |
| } |
| |
| llvm_unreachable("invalid phase in ConstructPhaseAction"); |
| } |
| |
| void Driver::BuildJobs(Compilation &C) const { |
| llvm::PrettyStackTraceString CrashInfo("Building compilation jobs"); |
| |
| Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o); |
| |
| // It is an error to provide a -o option if we are making multiple output |
| // files. |
| if (FinalOutput) { |
| unsigned NumOutputs = 0; |
| for (const Action *A : C.getActions()) |
| if (A->getType() != types::TY_Nothing) |
| ++NumOutputs; |
| |
| if (NumOutputs > 1) { |
| Diag(clang::diag::err_drv_output_argument_with_multiple_files); |
| FinalOutput = nullptr; |
| } |
| } |
| |
| // Collect the list of architectures. |
| llvm::StringSet<> ArchNames; |
| if (C.getDefaultToolChain().getTriple().isOSBinFormatMachO()) |
| for (const Arg *A : C.getArgs()) |
| if (A->getOption().matches(options::OPT_arch)) |
| ArchNames.insert(A->getValue()); |
| |
| // Set of (Action, canonical ToolChain triple) pairs we've built jobs for. |
| std::map<std::pair<const Action *, std::string>, InputInfo> CachedResults; |
| for (Action *A : C.getActions()) { |
| // If we are linking an image for multiple archs then the linker wants |
| // -arch_multiple and -final_output <final image name>. Unfortunately, this |
| // doesn't fit in cleanly because we have to pass this information down. |
| // |
| // FIXME: This is a hack; find a cleaner way to integrate this into the |
| // process. |
| const char *LinkingOutput = nullptr; |
| if (isa<LipoJobAction>(A)) { |
| if (FinalOutput) |
| LinkingOutput = FinalOutput->getValue(); |
| else |
| LinkingOutput = getDefaultImageName(); |
| } |
| |
| BuildJobsForAction(C, A, &C.getDefaultToolChain(), |
| /*BoundArch*/ nullptr, |
| /*AtTopLevel*/ true, |
| /*MultipleArchs*/ ArchNames.size() > 1, |
| /*LinkingOutput*/ LinkingOutput, CachedResults, |
| /*BuildForOffloadDevice*/ false); |
| } |
| |
| // If the user passed -Qunused-arguments or there were errors, don't warn |
| // about any unused arguments. |
| if (Diags.hasErrorOccurred() || |
| C.getArgs().hasArg(options::OPT_Qunused_arguments)) |
| return; |
| |
| // Claim -### here. |
| (void)C.getArgs().hasArg(options::OPT__HASH_HASH_HASH); |
| |
| // Claim --driver-mode, --rsp-quoting, it was handled earlier. |
| (void)C.getArgs().hasArg(options::OPT_driver_mode); |
| (void)C.getArgs().hasArg(options::OPT_rsp_quoting); |
| |
| for (Arg *A : C.getArgs()) { |
| // FIXME: It would be nice to be able to send the argument to the |
| // DiagnosticsEngine, so that extra values, position, and so on could be |
| // printed. |
| if (!A->isClaimed()) { |
| if (A->getOption().hasFlag(options::NoArgumentUnused)) |
| continue; |
| |
| // Suppress the warning automatically if this is just a flag, and it is an |
| // instance of an argument we already claimed. |
| const Option &Opt = A->getOption(); |
| if (Opt.getKind() == Option::FlagClass) { |
| bool DuplicateClaimed = false; |
| |
| for (const Arg *AA : C.getArgs().filtered(&Opt)) { |
| if (AA->isClaimed()) { |
| DuplicateClaimed = true; |
| break; |
| } |
| } |
| |
| if (DuplicateClaimed) |
| continue; |
| } |
| |
| // In clang-cl, don't mention unknown arguments here since they have |
| // already been warned about. |
| if (!IsCLMode() || !A->getOption().matches(options::OPT_UNKNOWN)) |
| Diag(clang::diag::warn_drv_unused_argument) |
| << A->getAsString(C.getArgs()); |
| } |
| } |
| } |
| /// Collapse an offloading action looking for a job of the given type. The input |
| /// action is changed to the input of the collapsed sequence. If we effectively |
| /// had a collapse return the corresponding offloading action, otherwise return |
| /// null. |
| template <typename T> |
| static OffloadAction *collapseOffloadingAction(Action *&CurAction) { |
| if (!CurAction) |
| return nullptr; |
| if (auto *OA = dyn_cast<OffloadAction>(CurAction)) { |
| if (OA->hasHostDependence()) |
| if (auto *HDep = dyn_cast<T>(OA->getHostDependence())) { |
| CurAction = HDep; |
| return OA; |
| } |
| if (OA->hasSingleDeviceDependence()) |
| if (auto *DDep = dyn_cast<T>(OA->getSingleDeviceDependence())) { |
| CurAction = DDep; |
| return OA; |
| } |
| } |
| return nullptr; |
| } |
| // Returns a Tool for a given JobAction. In case the action and its |
| // predecessors can be combined, updates Inputs with the inputs of the |
| // first combined action. If one of the collapsed actions is a |
| // CudaHostAction, updates CollapsedCHA with the pointer to it so the |
| // caller can deal with extra handling such action requires. |
| static const Tool *selectToolForJob(Compilation &C, bool SaveTemps, |
| bool EmbedBitcode, const ToolChain *TC, |
| const JobAction *JA, |
| const ActionList *&Inputs, |
| ActionList &CollapsedOffloadAction) { |
| const Tool *ToolForJob = nullptr; |
| CollapsedOffloadAction.clear(); |
| |
| // See if we should look for a compiler with an integrated assembler. We match |
| // bottom up, so what we are actually looking for is an assembler job with a |
| // compiler input. |
| |
| // Look through offload actions between assembler and backend actions. |
| Action *BackendJA = (isa<AssembleJobAction>(JA) && Inputs->size() == 1) |
| ? *Inputs->begin() |
| : nullptr; |
| auto *BackendOA = collapseOffloadingAction<BackendJobAction>(BackendJA); |
| |
| if (TC->useIntegratedAs() && !SaveTemps && |
| !C.getArgs().hasArg(options::OPT_via_file_asm) && |
| !C.getArgs().hasArg(options::OPT__SLASH_FA) && |
| !C.getArgs().hasArg(options::OPT__SLASH_Fa) && BackendJA && |
| isa<BackendJobAction>(BackendJA)) { |
| // A BackendJob is always preceded by a CompileJob, and without -save-temps |
| // or -fembed-bitcode, they will always get combined together, so instead of |
| // checking the backend tool, check if the tool for the CompileJob has an |
| // integrated assembler. For -fembed-bitcode, CompileJob is still used to |
| // look up tools for BackendJob, but they need to match before we can split |
| // them. |
| |
| // Look through offload actions between backend and compile actions. |
| Action *CompileJA = *BackendJA->getInputs().begin(); |
| auto *CompileOA = collapseOffloadingAction<CompileJobAction>(CompileJA); |
| |
| assert(CompileJA && isa<CompileJobAction>(CompileJA) && |
| "Backend job is not preceeded by compile job."); |
| const Tool *Compiler = TC->SelectTool(*cast<CompileJobAction>(CompileJA)); |
| if (!Compiler) |
| return nullptr; |
| // When using -fembed-bitcode, it is required to have the same tool (clang) |
| // for both CompilerJA and BackendJA. Otherwise, combine two stages. |
| if (EmbedBitcode) { |
| JobAction *InputJA = cast<JobAction>(*Inputs->begin()); |
| const Tool *BackendTool = TC->SelectTool(*InputJA); |
| if (BackendTool == Compiler) |
| CompileJA = InputJA; |
| } |
| if (Compiler->hasIntegratedAssembler()) { |
| Inputs = &CompileJA->getInputs(); |
| ToolForJob = Compiler; |
| // Save the collapsed offload actions because they may still contain |
| // device actions. |
| if (CompileOA) |
| CollapsedOffloadAction.push_back(CompileOA); |
| if (BackendOA) |
| CollapsedOffloadAction.push_back(BackendOA); |
| } |
| } |
| |
| // A backend job should always be combined with the preceding compile job |
| // unless OPT_save_temps or OPT_fembed_bitcode is enabled and the compiler is |
| // capable of emitting LLVM IR as an intermediate output. |
| if (isa<BackendJobAction>(JA)) { |
| // Check if the compiler supports emitting LLVM IR. |
| assert(Inputs->size() == 1); |
| |
| // Look through offload actions between backend and compile actions. |
| Action *CompileJA = *JA->getInputs().begin(); |
| auto *CompileOA = collapseOffloadingAction<CompileJobAction>(CompileJA); |
| |
| assert(CompileJA && isa<CompileJobAction>(CompileJA) && |
| "Backend job is not preceeded by compile job."); |
| const Tool *Compiler = TC->SelectTool(*cast<CompileJobAction>(CompileJA)); |
| if (!Compiler) |
| return nullptr; |
| if (!Compiler->canEmitIR() || |
| (!SaveTemps && !EmbedBitcode)) { |
| Inputs = &CompileJA->getInputs(); |
| ToolForJob = Compiler; |
| |
| if (CompileOA) |
| CollapsedOffloadAction.push_back(CompileOA); |
| } |
| } |
| |
| // Otherwise use the tool for the current job. |
| if (!ToolForJob) |
| ToolForJob = TC->SelectTool(*JA); |
| |
| // See if we should use an integrated preprocessor. We do so when we have |
| // exactly one input, since this is the only use case we care about |
| // (irrelevant since we don't support combine yet). |
| |
| // Look through offload actions after preprocessing. |
| Action *PreprocessJA = (Inputs->size() == 1) ? *Inputs->begin() : nullptr; |
| auto *PreprocessOA = |
| collapseOffloadingAction<PreprocessJobAction>(PreprocessJA); |
| |
| if (PreprocessJA && isa<PreprocessJobAction>(PreprocessJA) && |
| !C.getArgs().hasArg(options::OPT_no_integrated_cpp) && |
| !C.getArgs().hasArg(options::OPT_traditional_cpp) && !SaveTemps && |
| !C.getArgs().hasArg(options::OPT_rewrite_objc) && |
| ToolForJob->hasIntegratedCPP()) { |
| Inputs = &PreprocessJA->getInputs(); |
| if (PreprocessOA) |
| CollapsedOffloadAction.push_back(PreprocessOA); |
| } |
| |
| return ToolForJob; |
| } |
| |
| InputInfo Driver::BuildJobsForAction( |
| Compilation &C, const Action *A, const ToolChain *TC, const char *BoundArch, |
| bool AtTopLevel, bool MultipleArchs, const char *LinkingOutput, |
| std::map<std::pair<const Action *, std::string>, InputInfo> &CachedResults, |
| bool BuildForOffloadDevice) const { |
| // The bound arch is not necessarily represented in the toolchain's triple -- |
| // for example, armv7 and armv7s both map to the same triple -- so we need |
| // both in our map. |
| std::string TriplePlusArch = TC->getTriple().normalize(); |
| if (BoundArch) { |
| TriplePlusArch += "-"; |
| TriplePlusArch += BoundArch; |
| } |
| std::pair<const Action *, std::string> ActionTC = {A, TriplePlusArch}; |
| auto CachedResult = CachedResults.find(ActionTC); |
| if (CachedResult != CachedResults.end()) { |
| return CachedResult->second; |
| } |
| InputInfo Result = BuildJobsForActionNoCache( |
| C, A, TC, BoundArch, AtTopLevel, MultipleArchs, LinkingOutput, |
| CachedResults, BuildForOffloadDevice); |
| CachedResults[ActionTC] = Result; |
| return Result; |
| } |
| |
| InputInfo Driver::BuildJobsForActionNoCache( |
| Compilation &C, const Action *A, const ToolChain *TC, const char *BoundArch, |
| bool AtTopLevel, bool MultipleArchs, const char *LinkingOutput, |
| std::map<std::pair<const Action *, std::string>, InputInfo> &CachedResults, |
| bool BuildForOffloadDevice) const { |
| llvm::PrettyStackTraceString CrashInfo("Building compilation jobs"); |
| |
| InputInfoList OffloadDependencesInputInfo; |
| if (const OffloadAction *OA = dyn_cast<OffloadAction>(A)) { |
| // The offload action is expected to be used in four different situations. |
| // |
| // a) Set a toolchain/architecture/kind for a host action: |
| // Host Action 1 -> OffloadAction -> Host Action 2 |
| // |
| // b) Set a toolchain/architecture/kind for a device action; |
| // Device Action 1 -> OffloadAction -> Device Action 2 |
| // |
| // c) Specify a device dependences to a host action; |
| // Device Action 1 _ |
| // \ |
| // Host Action 1 ---> OffloadAction -> Host Action 2 |
| // |
| // d) Specify a host dependence to a device action. |
| // Host Action 1 _ |
| // \ |
| // Device Action 1 ---> OffloadAction -> Device Action 2 |
| // |
| // For a) and b), we just return the job generated for the dependence. For |
| // c) and d) we override the current action with the host/device dependence |
| // if the current toolchain is host/device and set the offload dependences |
| // info with the jobs obtained from the device/host dependence(s). |
| |
| // If there is a single device option, just generate the job for it. |
| if (OA->hasSingleDeviceDependence()) { |
| InputInfo DevA; |
| OA->doOnEachDeviceDependence([&](Action *DepA, const ToolChain *DepTC, |
| const char *DepBoundArch) { |
| DevA = |
| BuildJobsForAction(C, DepA, DepTC, DepBoundArch, AtTopLevel, |
| /*MultipleArchs*/ !!DepBoundArch, LinkingOutput, |
| CachedResults, /*BuildForOffloadDevice=*/true); |
| }); |
| return DevA; |
| } |
| |
| // If 'Action 2' is host, we generate jobs for the device dependences and |
| // override the current action with the host dependence. Otherwise, we |
| // generate the host dependences and override the action with the device |
| // dependence. The dependences can't therefore be a top-level action. |
| OA->doOnEachDependence( |
| /*IsHostDependence=*/BuildForOffloadDevice, |
| [&](Action *DepA, const ToolChain *DepTC, const char *DepBoundArch) { |
| OffloadDependencesInputInfo.push_back(BuildJobsForAction( |
| C, DepA, DepTC, DepBoundArch, /*AtTopLevel=*/false, |
| /*MultipleArchs*/ !!DepBoundArch, LinkingOutput, CachedResults, |
| /*BuildForOffloadDevice=*/DepA->getOffloadingDeviceKind() != |
| Action::OFK_None)); |
| }); |
| |
| A = BuildForOffloadDevice |
| ? OA->getSingleDeviceDependence(/*DoNotConsiderHostActions=*/true) |
| : OA->getHostDependence(); |
| } |
| |
| if (const InputAction *IA = dyn_cast<InputAction>(A)) { |
| // FIXME: It would be nice to not claim this here; maybe the old scheme of |
| // just using Args was better? |
| const Arg &Input = IA->getInputArg(); |
| Input.claim(); |
| if (Input.getOption().matches(options::OPT_INPUT)) { |
| const char *Name = Input.getValue(); |
| return InputInfo(A, Name, /* BaseInput = */ Name); |
| } |
| return InputInfo(A, &Input, /* BaseInput = */ ""); |
| } |
| |
| if (const BindArchAction *BAA = dyn_cast<BindArchAction>(A)) { |
| const ToolChain *TC; |
| const char *ArchName = BAA->getArchName(); |
| |
| if (ArchName) |
| TC = &getToolChain(C.getArgs(), |
| computeTargetTriple(*this, DefaultTargetTriple, |
| C.getArgs(), ArchName)); |
| else |
| TC = &C.getDefaultToolChain(); |
| |
| return BuildJobsForAction(C, *BAA->input_begin(), TC, ArchName, AtTopLevel, |
| MultipleArchs, LinkingOutput, CachedResults, |
| BuildForOffloadDevice); |
| } |
| |
| |
| const ActionList *Inputs = &A->getInputs(); |
| |
| const JobAction *JA = cast<JobAction>(A); |
| ActionList CollapsedOffloadActions; |
| |
| const Tool *T = |
| selectToolForJob(C, isSaveTempsEnabled(), embedBitcodeInObject() && !isUsingLTO(), TC, JA, |
| Inputs, CollapsedOffloadActions); |
| if (!T) |
| return InputInfo(); |
| |
| // If we've collapsed action list that contained OffloadAction we |
| // need to build jobs for host/device-side inputs it may have held. |
| for (const auto *OA : CollapsedOffloadActions) |
| cast<OffloadAction>(OA)->doOnEachDependence( |
| /*IsHostDependence=*/BuildForOffloadDevice, |
| [&](Action *DepA, const ToolChain *DepTC, const char *DepBoundArch) { |
| OffloadDependencesInputInfo.push_back(BuildJobsForAction( |
| C, DepA, DepTC, DepBoundArch, AtTopLevel, |
| /*MultipleArchs=*/!!DepBoundArch, LinkingOutput, CachedResults, |
| /*BuildForOffloadDevice=*/DepA->getOffloadingDeviceKind() != |
| Action::OFK_None)); |
| }); |
| |
| // Only use pipes when there is exactly one input. |
| InputInfoList InputInfos; |
| for (const Action *Input : *Inputs) { |
| // Treat dsymutil and verify sub-jobs as being at the top-level too, they |
| // shouldn't get temporary output names. |
| // FIXME: Clean this up. |
| bool SubJobAtTopLevel = |
| AtTopLevel && (isa<DsymutilJobAction>(A) || isa<VerifyJobAction>(A)); |
| InputInfos.push_back(BuildJobsForAction( |
| C, Input, TC, BoundArch, SubJobAtTopLevel, MultipleArchs, LinkingOutput, |
| CachedResults, BuildForOffloadDevice)); |
| } |
| |
| // Always use the first input as the base input. |
| const char *BaseInput = InputInfos[0].getBaseInput(); |
| |
| // ... except dsymutil actions, which use their actual input as the base |
| // input. |
| if (JA->getType() == types::TY_dSYM) |
| BaseInput = InputInfos[0].getFilename(); |
| |
| // Append outputs of offload device jobs to the input list |
| if (!OffloadDependencesInputInfo.empty()) |
| InputInfos.append(OffloadDependencesInputInfo.begin(), |
| OffloadDependencesInputInfo.end()); |
| |
| // Set the effective triple of the toolchain for the duration of this job. |
| llvm::Triple EffectiveTriple; |
| const ToolChain &ToolTC = T->getToolChain(); |
| const ArgList &Args = C.getArgsForToolChain(TC, BoundArch); |
| if (InputInfos.size() != 1) { |
| EffectiveTriple = llvm::Triple(ToolTC.ComputeEffectiveClangTriple(Args)); |
| } else { |
| // Pass along the input type if it can be unambiguously determined. |
| EffectiveTriple = llvm::Triple( |
| ToolTC.ComputeEffectiveClangTriple(Args, InputInfos[0].getType())); |
| } |
| RegisterEffectiveTriple TripleRAII(ToolTC, EffectiveTriple); |
| |
| // Determine the place to write output to, if any. |
| InputInfo Result; |
| if (JA->getType() == types::TY_Nothing) |
| Result = InputInfo(A, BaseInput); |
| else |
| Result = InputInfo(A, GetNamedOutputPath(C, *JA, BaseInput, BoundArch, |
| AtTopLevel, MultipleArchs, |
| TC->getTriple().normalize()), |
| BaseInput); |
| |
| if (CCCPrintBindings && !CCGenDiagnostics) { |
| llvm::errs() << "# \"" << T->getToolChain().getTripleString() << '"' |
| << " - \"" << T->getName() << "\", inputs: ["; |
| for (unsigned i = 0, e = InputInfos.size(); i != e; ++i) { |
| llvm::errs() << InputInfos[i].getAsString(); |
| if (i + 1 != e) |
| llvm::errs() << ", "; |
| } |
| llvm::errs() << "], output: " << Result.getAsString() << "\n"; |
| } else { |
| T->ConstructJob(C, *JA, Result, InputInfos, |
| C.getArgsForToolChain(TC, BoundArch), LinkingOutput); |
| } |
| return Result; |
| } |
| |
| const char *Driver::getDefaultImageName() const { |
| llvm::Triple Target(llvm::Triple::normalize(DefaultTargetTriple)); |
| return Target.isOSWindows() ? "a.exe" : "a.out"; |
| } |
| |
| /// \brief Create output filename based on ArgValue, which could either be a |
| /// full filename, filename without extension, or a directory. If ArgValue |
| /// does not provide a filename, then use BaseName, and use the extension |
| /// suitable for FileType. |
| static const char *MakeCLOutputFilename(const ArgList &Args, StringRef ArgValue, |
| StringRef BaseName, |
| types::ID FileType) { |
| SmallString<128> Filename = ArgValue; |
| |
| if (ArgValue.empty()) { |
| // If the argument is empty, output to BaseName in the current dir. |
| Filename = BaseName; |
| } else if (llvm::sys::path::is_separator(Filename.back())) { |
| // If the argument is a directory, output to BaseName in that dir. |
| llvm::sys::path::append(Filename, BaseName); |
| } |
| |
| if (!llvm::sys::path::has_extension(ArgValue)) { |
| // If the argument didn't provide an extension, then set it. |
| const char *Extension = types::getTypeTempSuffix(FileType, true); |
| |
| if (FileType == types::TY_Image && |
| Args.hasArg(options::OPT__SLASH_LD, options::OPT__SLASH_LDd)) { |
| // The output file is a dll. |
| Extension = "dll"; |
| } |
| |
| llvm::sys::path::replace_extension(Filename, Extension); |
| } |
| |
| return Args.MakeArgString(Filename.c_str()); |
| } |
| |
| const char *Driver::GetNamedOutputPath(Compilation &C, const JobAction &JA, |
| const char *BaseInput, |
| const char *BoundArch, bool AtTopLevel, |
| bool MultipleArchs, |
| StringRef NormalizedTriple) const { |
| llvm::PrettyStackTraceString CrashInfo("Computing output path"); |
| // Output to a user requested destination? |
| if (AtTopLevel && !isa<DsymutilJobAction>(JA) && !isa<VerifyJobAction>(JA)) { |
| if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o)) |
| return C.addResultFile(FinalOutput->getValue(), &JA); |
| } |
| |
| // For /P, preprocess to file named after BaseInput. |
| if (C.getArgs().hasArg(options::OPT__SLASH_P)) { |
| assert(AtTopLevel && isa<PreprocessJobAction>(JA)); |
| StringRef BaseName = llvm::sys::path::filename(BaseInput); |
| StringRef NameArg; |
| if (Arg *A = C.getArgs().getLastArg(options::OPT__SLASH_Fi)) |
| NameArg = A->getValue(); |
| return C.addResultFile( |
| MakeCLOutputFilename(C.getArgs(), NameArg, BaseName, types::TY_PP_C), |
| &JA); |
| } |
| |
| // Default to writing to stdout? |
| if (AtTopLevel && !CCGenDiagnostics && |
| (isa<PreprocessJobAction>(JA) || JA.getType() == types::TY_ModuleFile)) |
| return "-"; |
| |
| // Is this the assembly listing for /FA? |
| if (JA.getType() == types::TY_PP_Asm && |
| (C.getArgs().hasArg(options::OPT__SLASH_FA) || |
| C.getArgs().hasArg(options::OPT__SLASH_Fa))) { |
| // Use /Fa and the input filename to determine the asm file name. |
| StringRef BaseName = llvm::sys::path::filename(BaseInput); |
| StringRef FaValue = C.getArgs().getLastArgValue(options::OPT__SLASH_Fa); |
| return C.addResultFile( |
| MakeCLOutputFilename(C.getArgs(), FaValue, BaseName, JA.getType()), |
| &JA); |
| } |
| |
| // Output to a temporary file? |
| if ((!AtTopLevel && !isSaveTempsEnabled() && |
| !C.getArgs().hasArg(options::OPT__SLASH_Fo)) || |
| CCGenDiagnostics) { |
| StringRef Name = llvm::sys::path::filename(BaseInput); |
| std::pair<StringRef, StringRef> Split = Name.split('.'); |
| std::string TmpName = GetTemporaryPath( |
| Split.first, types::getTypeTempSuffix(JA.getType(), IsCLMode())); |
| return C.addTempFile(C.getArgs().MakeArgString(TmpName.c_str())); |
| } |
| |
| SmallString<128> BasePath(BaseInput); |
| StringRef BaseName; |
| |
| // Dsymutil actions should use the full path. |
| if (isa<DsymutilJobAction>(JA) || isa<VerifyJobAction>(JA)) |
| BaseName = BasePath; |
| else |
| BaseName = llvm::sys::path::filename(BasePath); |
| |
| // Determine what the derived output name should be. |
| const char *NamedOutput; |
| |
| if (JA.getType() == types::TY_Object && |
| C.getArgs().hasArg(options::OPT__SLASH_Fo, options::OPT__SLASH_o)) { |
| // The /Fo or /o flag decides the object filename. |
| StringRef Val = |
| C.getArgs() |
| .getLastArg(options::OPT__SLASH_Fo, options::OPT__SLASH_o) |
| ->getValue(); |
| NamedOutput = |
| MakeCLOutputFilename(C.getArgs(), Val, BaseName, types::TY_Object); |
| } else if (JA.getType() == types::TY_Image && |
| C.getArgs().hasArg(options::OPT__SLASH_Fe, |
| options::OPT__SLASH_o)) { |
| // The /Fe or /o flag names the linked file. |
| StringRef Val = |
| C.getArgs() |
| .getLastArg(options::OPT__SLASH_Fe, options::OPT__SLASH_o) |
| ->getValue(); |
| NamedOutput = |
| MakeCLOutputFilename(C.getArgs(), Val, BaseName, types::TY_Image); |
| } else if (JA.getType() == types::TY_Image) { |
| if (IsCLMode()) { |
| // clang-cl uses BaseName for the executable name. |
| NamedOutput = |
| MakeCLOutputFilename(C.getArgs(), "", BaseName, types::TY_Image); |
| } else if (MultipleArchs && BoundArch) { |
| SmallString<128> Output(getDefaultImageName()); |
| Output += JA.getOffloadingFileNamePrefix(NormalizedTriple); |
| Output += "-"; |
| Output.append(BoundArch); |
| NamedOutput = C.getArgs().MakeArgString(Output.c_str()); |
| } else { |
| NamedOutput = getDefaultImageName(); |
| } |
| } else if (JA.getType() == types::TY_PCH && IsCLMode()) { |
| NamedOutput = C.getArgs().MakeArgString(GetClPchPath(C, BaseName).c_str()); |
| } else { |
| const char *Suffix = types::getTypeTempSuffix(JA.getType(), IsCLMode()); |
| assert(Suffix && "All types used for output should have a suffix."); |
| |
| std::string::size_type End = std::string::npos; |
| if (!types::appendSuffixForType(JA.getType())) |
| End = BaseName.rfind('.'); |
| SmallString<128> Suffixed(BaseName.substr(0, End)); |
| Suffixed += JA.getOffloadingFileNamePrefix(NormalizedTriple); |
| if (MultipleArchs && BoundArch) { |
| Suffixed += "-"; |
| Suffixed.append(BoundArch); |
| } |
| // When using both -save-temps and -emit-llvm, use a ".tmp.bc" suffix for |
| // the unoptimized bitcode so that it does not get overwritten by the ".bc" |
| // optimized bitcode output. |
| if (!AtTopLevel && C.getArgs().hasArg(options::OPT_emit_llvm) && |
| JA.getType() == types::TY_LLVM_BC) |
| Suffixed += ".tmp"; |
| Suffixed += '.'; |
| Suffixed += Suffix; |
| NamedOutput = C.getArgs().MakeArgString(Suffixed.c_str()); |
| } |
| |
| // Prepend object file path if -save-temps=obj |
| if (!AtTopLevel && isSaveTempsObj() && C.getArgs().hasArg(options::OPT_o) && |
| JA.getType() != types::TY_PCH) { |
| Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o); |
| SmallString<128> TempPath(FinalOutput->getValue()); |
| llvm::sys::path::remove_filename(TempPath); |
| StringRef OutputFileName = llvm::sys::path::filename(NamedOutput); |
| llvm::sys::path::append(TempPath, OutputFileName); |
| NamedOutput = C.getArgs().MakeArgString(TempPath.c_str()); |
| } |
| |
| // If we're saving temps and the temp file conflicts with the input file, |
| // then avoid overwriting input file. |
| if (!AtTopLevel && isSaveTempsEnabled() && NamedOutput == BaseName) { |
| bool SameFile = false; |
| SmallString<256> Result; |
| llvm::sys::fs::current_path(Result); |
| llvm::sys::path::append(Result, BaseName); |
| llvm::sys::fs::equivalent(BaseInput, Result.c_str(), SameFile); |
| // Must share the same path to conflict. |
| if (SameFile) { |
| StringRef Name = llvm::sys::path::filename(BaseInput); |
| std::pair<StringRef, StringRef> Split = Name.split('.'); |
| std::string TmpName = GetTemporaryPath( |
| Split.first, types::getTypeTempSuffix(JA.getType(), IsCLMode())); |
| return C.addTempFile(C.getArgs().MakeArgString(TmpName.c_str())); |
| } |
| } |
| |
| // As an annoying special case, PCH generation doesn't strip the pathname. |
| if (JA.getType() == types::TY_PCH && !IsCLMode()) { |
| llvm::sys::path::remove_filename(BasePath); |
| if (BasePath.empty()) |
| BasePath = NamedOutput; |
| else |
| llvm::sys::path::append(BasePath, NamedOutput); |
| return C.addResultFile(C.getArgs().MakeArgString(BasePath.c_str()), &JA); |
| } else { |
| return C.addResultFile(NamedOutput, &JA); |
| } |
| } |
| |
| std::string Driver::GetFilePath(const char *Name, const ToolChain &TC) const { |
| // Respect a limited subset of the '-Bprefix' functionality in GCC by |
| // attempting to use this prefix when looking for file paths. |
| for (const std::string &Dir : PrefixDirs) { |
| if (Dir.empty()) |
| continue; |
| SmallString<128> P(Dir[0] == '=' ? SysRoot + Dir.substr(1) : Dir); |
| llvm::sys::path::append(P, Name); |
| if (llvm::sys::fs::exists(Twine(P))) |
| return P.str(); |
| } |
| |
| SmallString<128> P(ResourceDir); |
| llvm::sys::path::append(P, Name); |
| if (llvm::sys::fs::exists(Twine(P))) |
| return P.str(); |
| |
| for (const std::string &Dir : TC.getFilePaths()) { |
| if (Dir.empty()) |
| continue; |
| SmallString<128> P(Dir[0] == '=' ? SysRoot + Dir.substr(1) : Dir); |
| llvm::sys::path::append(P, Name); |
| if (llvm::sys::fs::exists(Twine(P))) |
| return P.str(); |
| } |
| |
| return Name; |
| } |
| |
| void Driver::generatePrefixedToolNames( |
| const char *Tool, const ToolChain &TC, |
| SmallVectorImpl<std::string> &Names) const { |
| // FIXME: Needs a better variable than DefaultTargetTriple |
| Names.emplace_back(DefaultTargetTriple + "-" + Tool); |
| Names.emplace_back(Tool); |
| |
| // Allow the discovery of tools prefixed with LLVM's default target triple. |
| std::string LLVMDefaultTargetTriple = llvm::sys::getDefaultTargetTriple(); |
| if (LLVMDefaultTargetTriple != DefaultTargetTriple) |
| Names.emplace_back(LLVMDefaultTargetTriple + "-" + Tool); |
| } |
| |
| static bool ScanDirForExecutable(SmallString<128> &Dir, |
| ArrayRef<std::string> Names) { |
| for (const auto &Name : Names) { |
| llvm::sys::path::append(Dir, Name); |
| if (llvm::sys::fs::can_execute(Twine(Dir))) |
| return true; |
| llvm::sys::path::remove_filename(Dir); |
| } |
| return false; |
| } |
| |
| std::string Driver::GetProgramPath(const char *Name, |
| const ToolChain &TC) const { |
| SmallVector<std::string, 2> TargetSpecificExecutables; |
| generatePrefixedToolNames(Name, TC, TargetSpecificExecutables); |
| |
| // Respect a limited subset of the '-Bprefix' functionality in GCC by |
| // attempting to use this prefix when looking for program paths. |
| for (const auto &PrefixDir : PrefixDirs) { |
| if (llvm::sys::fs::is_directory(PrefixDir)) { |
| SmallString<128> P(PrefixDir); |
| if (ScanDirForExecutable(P, TargetSpecificExecutables)) |
| return P.str(); |
| } else { |
| SmallString<128> P(PrefixDir + Name); |
| if (llvm::sys::fs::can_execute(Twine(P))) |
| return P.str(); |
| } |
| } |
| |
| const ToolChain::path_list &List = TC.getProgramPaths(); |
| for (const auto &Path : List) { |
| SmallString<128> P(Path); |
| if (ScanDirForExecutable(P, TargetSpecificExecutables)) |
| return P.str(); |
| } |
| |
| // If all else failed, search the path. |
| for (const auto &TargetSpecificExecutable : TargetSpecificExecutables) |
| if (llvm::ErrorOr<std::string> P = |
| llvm::sys::findProgramByName(TargetSpecificExecutable)) |
| return *P; |
| |
| return Name; |
| } |
| |
| std::string Driver::GetTemporaryPath(StringRef Prefix, |
| const char *Suffix) const { |
| SmallString<128> Path; |
| std::error_code EC = llvm::sys::fs::createTemporaryFile(Prefix, Suffix, Path); |
| if (EC) { |
| Diag(clang::diag::err_unable_to_make_temp) << EC.message(); |
| return ""; |
| } |
| |
| return Path.str(); |
| } |
| |
| std::string Driver::GetClPchPath(Compilation &C, StringRef BaseName) const { |
| SmallString<128> Output; |
| if (Arg *FpArg = C.getArgs().getLastArg(options::OPT__SLASH_Fp)) { |
| // FIXME: If anybody needs it, implement this obscure rule: |
| // "If you specify a directory without a file name, the default file name |
| // is VCx0.pch., where x is the major version of Visual C++ in use." |
| Output = FpArg->getValue(); |
| |
| // "If you do not specify an extension as part of the path name, an |
| // extension of .pch is assumed. " |
| if (!llvm::sys::path::has_extension(Output)) |
| Output += ".pch"; |
| } else { |
| Output = BaseName; |
| llvm::sys::path::replace_extension(Output, ".pch"); |
| } |
| return Output.str(); |
| } |
| |
| const ToolChain &Driver::getToolChain(const ArgList &Args, |
| const llvm::Triple &Target) const { |
| |
| ToolChain *&TC = ToolChains[Target.str()]; |
| if (!TC) { |
| switch (Target.getOS()) { |
| case llvm::Triple::Haiku: |
| TC = new toolchains::Haiku(*this, Target, Args); |
| break; |
| case llvm::Triple::CloudABI: |
| TC = new toolchains::CloudABI(*this, Target, Args); |
| break; |
| case llvm::Triple::Darwin: |
| case llvm::Triple::MacOSX: |
| case llvm::Triple::IOS: |
| case llvm::Triple::TvOS: |
| case llvm::Triple::WatchOS: |
| TC = new toolchains::DarwinClang(*this, Target, Args); |
| break; |
| case llvm::Triple::DragonFly: |
| TC = new toolchains::DragonFly(*this, Target, Args); |
| break; |
| case llvm::Triple::OpenBSD: |
| TC = new toolchains::OpenBSD(*this, Target, Args); |
| break; |
| case llvm::Triple::Bitrig: |
| TC = new toolchains::Bitrig(*this, Target, Args); |
| break; |
| case llvm::Triple::NetBSD: |
| TC = new toolchains::NetBSD(*this, Target, Args); |
| break; |
| case llvm::Triple::FreeBSD: |
| TC = new toolchains::FreeBSD(*this, Target, Args); |
| break; |
| case llvm::Triple::Minix: |
| TC = new toolchains::Minix(*this, Target, Args); |
| break; |
| case llvm::Triple::Linux: |
| case llvm::Triple::ELFIAMCU: |
| if (Target.getArch() == llvm::Triple::hexagon) |
| TC = new toolchains::HexagonToolChain(*this, Target, Args); |
| else if ((Target.getVendor() == llvm::Triple::MipsTechnologies) && |
| !Target.hasEnvironment()) |
| TC = new toolchains::MipsLLVMToolChain(*this, Target, Args); |
| else |
| TC = new toolchains::Linux(*this, Target, Args); |
| break; |
| case llvm::Triple::NaCl: |
| TC = new toolchains::NaClToolChain(*this, Target, Args); |
| break; |
| case llvm::Triple::Solaris: |
| TC = new toolchains::Solaris(*this, Target, Args); |
| break; |
| case llvm::Triple::AMDHSA: |
| TC = new toolchains::AMDGPUToolChain(*this, Target, Args); |
| break; |
| case llvm::Triple::Win32: |
| switch (Target.getEnvironment()) { |
| default: |
| if (Target.isOSBinFormatELF()) |
| TC = new toolchains::Generic_ELF(*this, Target, Args); |
| else if (Target.isOSBinFormatMachO()) |
| TC = new toolchains::MachO(*this, Target, Args); |
| else |
| TC = new toolchains::Generic_GCC(*this, Target, Args); |
| break; |
| case llvm::Triple::GNU: |
| TC = new toolchains::MinGW(*this, Target, Args); |
| break; |
| case llvm::Triple::Itanium: |
| TC = new toolchains::CrossWindowsToolChain(*this, Target, Args); |
| break; |
| case llvm::Triple::MSVC: |
| case llvm::Triple::UnknownEnvironment: |
| TC = new toolchains::MSVCToolChain(*this, Target, Args); |
| break; |
| } |
| break; |
| case llvm::Triple::CUDA: |
| TC = new toolchains::CudaToolChain(*this, Target, Args); |
| break; |
| case llvm::Triple::PS4: |
| TC = new toolchains::PS4CPU(*this, Target, Args); |
| break; |
| default: |
| // Of these targets, Hexagon is the only one that might have |
| // an OS of Linux, in which case it got handled above already. |
| switch (Target.getArch()) { |
| case llvm::Triple::tce: |
| TC = new toolchains::TCEToolChain(*this, Target, Args); |
| break; |
| case llvm::Triple::hexagon: |
| TC = new toolchains::HexagonToolChain(*this, Target, Args); |
| break; |
| case llvm::Triple::lanai: |
| TC = new toolchains::LanaiToolChain(*this, Target, Args); |
| break; |
| case llvm::Triple::xcore: |
| TC = new toolchains::XCoreToolChain(*this, Target, Args); |
| break; |
| case llvm::Triple::wasm32: |
| case llvm::Triple::wasm64: |
| TC = new toolchains::WebAssembly(*this, Target, Args); |
| break; |
| default: |
| if (Target.getVendor() == llvm::Triple::Myriad) |
| TC = new toolchains::MyriadToolChain(*this, Target, Args); |
| else if (Target.isOSBinFormatELF()) |
| TC = new toolchains::Generic_ELF(*this, Target, Args); |
| else if (Target.isOSBinFormatMachO()) |
| TC = new toolchains::MachO(*this, Target, Args); |
| else |
| TC = new toolchains::Generic_GCC(*this, Target, Args); |
| } |
| } |
| } |
| return *TC; |
| } |
| |
| bool Driver::ShouldUseClangCompiler(const JobAction &JA) const { |
| // Say "no" if there is not exactly one input of a type clang understands. |
| if (JA.size() != 1 || |
| !types::isAcceptedByClang((*JA.input_begin())->getType())) |
| return false; |
| |
| // And say "no" if this is not a kind of action clang understands. |
| if (!isa<PreprocessJobAction>(JA) && !isa<PrecompileJobAction>(JA) && |
| !isa<CompileJobAction>(JA) && !isa<BackendJobAction>(JA)) |
| return false; |
| |
| return true; |
| } |
| |
| /// GetReleaseVersion - Parse (([0-9]+)(.([0-9]+)(.([0-9]+)?))?)? and return the |
| /// grouped values as integers. Numbers which are not provided are set to 0. |
| /// |
| /// \return True if the entire string was parsed (9.2), or all groups were |
| /// parsed (10.3.5extrastuff). |
| bool Driver::GetReleaseVersion(const char *Str, unsigned &Major, |
| unsigned &Minor, unsigned &Micro, |
| bool &HadExtra) { |
| HadExtra = false; |
| |
| Major = Minor = Micro = 0; |
| if (*Str == '\0') |
| return false; |
| |
| char *End; |
| Major = (unsigned)strtol(Str, &End, 10); |
| if (*Str != '\0' && *End == '\0') |
| return true; |
| if (*End != '.') |
| return false; |
| |
| Str = End + 1; |
| Minor = (unsigned)strtol(Str, &End, 10); |
| if (*Str != '\0' && *End == '\0') |
| return true; |
| if (*End != '.') |
| return false; |
| |
| Str = End + 1; |
| Micro = (unsigned)strtol(Str, &End, 10); |
| if (*Str != '\0' && *End == '\0') |
| return true; |
| if (Str == End) |
| return false; |
| HadExtra = true; |
| return true; |
| } |
| |
| /// Parse digits from a string \p Str and fulfill \p Digits with |
| /// the parsed numbers. This method assumes that the max number of |
| /// digits to look for is equal to Digits.size(). |
| /// |
| /// \return True if the entire string was parsed and there are |
| /// no extra characters remaining at the end. |
| bool Driver::GetReleaseVersion(const char *Str, |
| MutableArrayRef<unsigned> Digits) { |
| if (*Str == '\0') |
| return false; |
| |
| char *End; |
| unsigned CurDigit = 0; |
| while (CurDigit < Digits.size()) { |
| unsigned Digit = (unsigned)strtol(Str, &End, 10); |
| Digits[CurDigit] = Digit; |
| if (*Str != '\0' && *End == '\0') |
| return true; |
| if (*End != '.' || Str == End) |
| return false; |
| Str = End + 1; |
| CurDigit++; |
| } |
| |
| // More digits than requested, bail out... |
| return false; |
| } |
| |
| std::pair<unsigned, unsigned> Driver::getIncludeExcludeOptionFlagMasks() const { |
| unsigned IncludedFlagsBitmask = 0; |
| unsigned ExcludedFlagsBitmask = options::NoDriverOption; |
| |
| if (Mode == CLMode) { |
| // Include CL and Core options. |
| IncludedFlagsBitmask |= options::CLOption; |
| IncludedFlagsBitmask |= options::CoreOption; |
| } else { |
| ExcludedFlagsBitmask |= options::CLOption; |
| } |
| |
| return std::make_pair(IncludedFlagsBitmask, ExcludedFlagsBitmask); |
| } |
| |
| bool clang::driver::isOptimizationLevelFast(const ArgList &Args) { |
| return Args.hasFlag(options::OPT_Ofast, options::OPT_O_Group, false); |
| } |