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Diffstat (limited to 'lib/Driver/Tools.cpp')
| -rw-r--r-- | lib/Driver/Tools.cpp | 12226 |
1 files changed, 0 insertions, 12226 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp deleted file mode 100644 index 3c3d453ff7d1..000000000000 --- a/lib/Driver/Tools.cpp +++ /dev/null @@ -1,12226 +0,0 @@ -//===--- Tools.cpp - Tools Implementations ----------------------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#include "Tools.h" -#include "InputInfo.h" -#include "ToolChains.h" -#include "clang/Basic/CharInfo.h" -#include "clang/Basic/LangOptions.h" -#include "clang/Basic/ObjCRuntime.h" -#include "clang/Basic/Version.h" -#include "clang/Config/config.h" -#include "clang/Driver/Action.h" -#include "clang/Driver/Compilation.h" -#include "clang/Driver/Driver.h" -#include "clang/Driver/DriverDiagnostic.h" -#include "clang/Driver/Job.h" -#include "clang/Driver/Options.h" -#include "clang/Driver/SanitizerArgs.h" -#include "clang/Driver/ToolChain.h" -#include "clang/Driver/Util.h" -#include "llvm/ADT/STLExtras.h" -#include "llvm/ADT/SmallString.h" -#include "llvm/ADT/StringExtras.h" -#include "llvm/ADT/StringSwitch.h" -#include "llvm/ADT/Twine.h" -#include "llvm/Option/Arg.h" -#include "llvm/Option/ArgList.h" -#include "llvm/Option/Option.h" -#include "llvm/Support/CodeGen.h" -#include "llvm/Support/Compression.h" -#include "llvm/Support/ErrorHandling.h" -#include "llvm/Support/FileSystem.h" -#include "llvm/Support/Host.h" -#include "llvm/Support/Path.h" -#include "llvm/Support/Process.h" -#include "llvm/Support/Program.h" -#include "llvm/Support/ScopedPrinter.h" -#include "llvm/Support/TargetParser.h" -#include "llvm/Support/YAMLParser.h" - -#ifdef LLVM_ON_UNIX -#include <unistd.h> // For getuid(). -#endif - -using namespace clang::driver; -using namespace clang::driver::tools; -using namespace clang; -using namespace llvm::opt; - -static void handleTargetFeaturesGroup(const ArgList &Args, - std::vector<StringRef> &Features, - OptSpecifier Group) { - for (const Arg *A : Args.filtered(Group)) { - StringRef Name = A->getOption().getName(); - A->claim(); - - // Skip over "-m". - assert(Name.startswith("m") && "Invalid feature name."); - Name = Name.substr(1); - - bool IsNegative = Name.startswith("no-"); - if (IsNegative) - Name = Name.substr(3); - Features.push_back(Args.MakeArgString((IsNegative ? "-" : "+") + Name)); - } -} - -static const char *getSparcAsmModeForCPU(StringRef Name, - const llvm::Triple &Triple) { - if (Triple.getArch() == llvm::Triple::sparcv9) { - return llvm::StringSwitch<const char *>(Name) - .Case("niagara", "-Av9b") - .Case("niagara2", "-Av9b") - .Case("niagara3", "-Av9d") - .Case("niagara4", "-Av9d") - .Default("-Av9"); - } else { - return llvm::StringSwitch<const char *>(Name) - .Case("v8", "-Av8") - .Case("supersparc", "-Av8") - .Case("sparclite", "-Asparclite") - .Case("f934", "-Asparclite") - .Case("hypersparc", "-Av8") - .Case("sparclite86x", "-Asparclite") - .Case("sparclet", "-Asparclet") - .Case("tsc701", "-Asparclet") - .Case("v9", "-Av8plus") - .Case("ultrasparc", "-Av8plus") - .Case("ultrasparc3", "-Av8plus") - .Case("niagara", "-Av8plusb") - .Case("niagara2", "-Av8plusb") - .Case("niagara3", "-Av8plusd") - .Case("niagara4", "-Av8plusd") - .Case("leon2", "-Av8") - .Case("at697e", "-Av8") - .Case("at697f", "-Av8") - .Case("leon3", "-Av8") - .Case("ut699", "-Av8") - .Case("gr712rc", "-Av8") - .Case("leon4", "-Av8") - .Case("gr740", "-Av8") - .Default("-Av8"); - } -} - -static void CheckPreprocessingOptions(const Driver &D, const ArgList &Args) { - if (Arg *A = Args.getLastArg(options::OPT_C, options::OPT_CC)) { - if (!Args.hasArg(options::OPT_E) && !Args.hasArg(options::OPT__SLASH_P) && - !Args.hasArg(options::OPT__SLASH_EP) && !D.CCCIsCPP()) { - D.Diag(diag::err_drv_argument_only_allowed_with) - << A->getBaseArg().getAsString(Args) - << (D.IsCLMode() ? "/E, /P or /EP" : "-E"); - } - } -} - -static void CheckCodeGenerationOptions(const Driver &D, const ArgList &Args) { - // In gcc, only ARM checks this, but it seems reasonable to check universally. - if (Args.hasArg(options::OPT_static)) - if (const Arg *A = - Args.getLastArg(options::OPT_dynamic, options::OPT_mdynamic_no_pic)) - D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) - << "-static"; -} - -// Add backslashes to escape spaces and other backslashes. -// This is used for the space-separated argument list specified with -// the -dwarf-debug-flags option. -static void EscapeSpacesAndBackslashes(const char *Arg, - SmallVectorImpl<char> &Res) { - for (; *Arg; ++Arg) { - switch (*Arg) { - default: - break; - case ' ': - case '\\': - Res.push_back('\\'); - break; - } - Res.push_back(*Arg); - } -} - -// Quote target names for inclusion in GNU Make dependency files. -// Only the characters '$', '#', ' ', '\t' are quoted. -static void QuoteTarget(StringRef Target, SmallVectorImpl<char> &Res) { - for (unsigned i = 0, e = Target.size(); i != e; ++i) { - switch (Target[i]) { - case ' ': - case '\t': - // Escape the preceding backslashes - for (int j = i - 1; j >= 0 && Target[j] == '\\'; --j) - Res.push_back('\\'); - - // Escape the space/tab - Res.push_back('\\'); - break; - case '$': - Res.push_back('$'); - break; - case '#': - Res.push_back('\\'); - break; - default: - break; - } - - Res.push_back(Target[i]); - } -} - -static void addDirectoryList(const ArgList &Args, ArgStringList &CmdArgs, - const char *ArgName, const char *EnvVar) { - const char *DirList = ::getenv(EnvVar); - bool CombinedArg = false; - - if (!DirList) - return; // Nothing to do. - - StringRef Name(ArgName); - if (Name.equals("-I") || Name.equals("-L")) - CombinedArg = true; - - StringRef Dirs(DirList); - if (Dirs.empty()) // Empty string should not add '.'. - return; - - StringRef::size_type Delim; - while ((Delim = Dirs.find(llvm::sys::EnvPathSeparator)) != StringRef::npos) { - if (Delim == 0) { // Leading colon. - if (CombinedArg) { - CmdArgs.push_back(Args.MakeArgString(std::string(ArgName) + ".")); - } else { - CmdArgs.push_back(ArgName); - CmdArgs.push_back("."); - } - } else { - if (CombinedArg) { - CmdArgs.push_back( - Args.MakeArgString(std::string(ArgName) + Dirs.substr(0, Delim))); - } else { - CmdArgs.push_back(ArgName); - CmdArgs.push_back(Args.MakeArgString(Dirs.substr(0, Delim))); - } - } - Dirs = Dirs.substr(Delim + 1); - } - - if (Dirs.empty()) { // Trailing colon. - if (CombinedArg) { - CmdArgs.push_back(Args.MakeArgString(std::string(ArgName) + ".")); - } else { - CmdArgs.push_back(ArgName); - CmdArgs.push_back("."); - } - } else { // Add the last path. - if (CombinedArg) { - CmdArgs.push_back(Args.MakeArgString(std::string(ArgName) + Dirs)); - } else { - CmdArgs.push_back(ArgName); - CmdArgs.push_back(Args.MakeArgString(Dirs)); - } - } -} - -static void AddLinkerInputs(const ToolChain &TC, const InputInfoList &Inputs, - const ArgList &Args, ArgStringList &CmdArgs, - const JobAction &JA) { - const Driver &D = TC.getDriver(); - - // Add extra linker input arguments which are not treated as inputs - // (constructed via -Xarch_). - Args.AddAllArgValues(CmdArgs, options::OPT_Zlinker_input); - - for (const auto &II : Inputs) { - // If the current tool chain refers to an OpenMP offloading host, we should - // ignore inputs that refer to OpenMP offloading devices - they will be - // embedded according to a proper linker script. - if (auto *IA = II.getAction()) - if (JA.isHostOffloading(Action::OFK_OpenMP) && - IA->isDeviceOffloading(Action::OFK_OpenMP)) - continue; - - if (!TC.HasNativeLLVMSupport() && types::isLLVMIR(II.getType())) - // Don't try to pass LLVM inputs unless we have native support. - D.Diag(diag::err_drv_no_linker_llvm_support) << TC.getTripleString(); - - // Add filenames immediately. - if (II.isFilename()) { - CmdArgs.push_back(II.getFilename()); - continue; - } - - // Otherwise, this is a linker input argument. - const Arg &A = II.getInputArg(); - - // Handle reserved library options. - if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) - TC.AddCXXStdlibLibArgs(Args, CmdArgs); - else if (A.getOption().matches(options::OPT_Z_reserved_lib_cckext)) - TC.AddCCKextLibArgs(Args, CmdArgs); - else if (A.getOption().matches(options::OPT_z)) { - // Pass -z prefix for gcc linker compatibility. - A.claim(); - A.render(Args, CmdArgs); - } else { - A.renderAsInput(Args, CmdArgs); - } - } - - // LIBRARY_PATH - included following the user specified library paths. - // and only supported on native toolchains. - if (!TC.isCrossCompiling()) - addDirectoryList(Args, CmdArgs, "-L", "LIBRARY_PATH"); -} - -/// Add OpenMP linker script arguments at the end of the argument list so that -/// the fat binary is built by embedding each of the device images into the -/// host. The linker script also defines a few symbols required by the code -/// generation so that the images can be easily retrieved at runtime by the -/// offloading library. This should be used only in tool chains that support -/// linker scripts. -static void AddOpenMPLinkerScript(const ToolChain &TC, Compilation &C, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, ArgStringList &CmdArgs, - const JobAction &JA) { - - // If this is not an OpenMP host toolchain, we don't need to do anything. - if (!JA.isHostOffloading(Action::OFK_OpenMP)) - return; - - // Create temporary linker script. Keep it if save-temps is enabled. - const char *LKS; - SmallString<256> Name = llvm::sys::path::filename(Output.getFilename()); - if (C.getDriver().isSaveTempsEnabled()) { - llvm::sys::path::replace_extension(Name, "lk"); - LKS = C.getArgs().MakeArgString(Name.c_str()); - } else { - llvm::sys::path::replace_extension(Name, ""); - Name = C.getDriver().GetTemporaryPath(Name, "lk"); - LKS = C.addTempFile(C.getArgs().MakeArgString(Name.c_str())); - } - - // Add linker script option to the command. - CmdArgs.push_back("-T"); - CmdArgs.push_back(LKS); - - // Create a buffer to write the contents of the linker script. - std::string LksBuffer; - llvm::raw_string_ostream LksStream(LksBuffer); - - // Get the OpenMP offload tool chains so that we can extract the triple - // associated with each device input. - auto OpenMPToolChains = C.getOffloadToolChains<Action::OFK_OpenMP>(); - assert(OpenMPToolChains.first != OpenMPToolChains.second && - "No OpenMP toolchains??"); - - // Track the input file name and device triple in order to build the script, - // inserting binaries in the designated sections. - SmallVector<std::pair<std::string, const char *>, 8> InputBinaryInfo; - - // Add commands to embed target binaries. We ensure that each section and - // image is 16-byte aligned. This is not mandatory, but increases the - // likelihood of data to be aligned with a cache block in several main host - // machines. - LksStream << "/*\n"; - LksStream << " OpenMP Offload Linker Script\n"; - LksStream << " *** Automatically generated by Clang ***\n"; - LksStream << "*/\n"; - LksStream << "TARGET(binary)\n"; - auto DTC = OpenMPToolChains.first; - for (auto &II : Inputs) { - const Action *A = II.getAction(); - // Is this a device linking action? - if (A && isa<LinkJobAction>(A) && - A->isDeviceOffloading(Action::OFK_OpenMP)) { - assert(DTC != OpenMPToolChains.second && - "More device inputs than device toolchains??"); - InputBinaryInfo.push_back(std::make_pair( - DTC->second->getTriple().normalize(), II.getFilename())); - ++DTC; - LksStream << "INPUT(" << II.getFilename() << ")\n"; - } - } - - assert(DTC == OpenMPToolChains.second && - "Less device inputs than device toolchains??"); - - LksStream << "SECTIONS\n"; - LksStream << "{\n"; - LksStream << " .omp_offloading :\n"; - LksStream << " ALIGN(0x10)\n"; - LksStream << " {\n"; - - for (auto &BI : InputBinaryInfo) { - LksStream << " . = ALIGN(0x10);\n"; - LksStream << " PROVIDE_HIDDEN(.omp_offloading.img_start." << BI.first - << " = .);\n"; - LksStream << " " << BI.second << "\n"; - LksStream << " PROVIDE_HIDDEN(.omp_offloading.img_end." << BI.first - << " = .);\n"; - } - - LksStream << " }\n"; - // Add commands to define host entries begin and end. We use 1-byte subalign - // so that the linker does not add any padding and the elements in this - // section form an array. - LksStream << " .omp_offloading.entries :\n"; - LksStream << " ALIGN(0x10)\n"; - LksStream << " SUBALIGN(0x01)\n"; - LksStream << " {\n"; - LksStream << " PROVIDE_HIDDEN(.omp_offloading.entries_begin = .);\n"; - LksStream << " *(.omp_offloading.entries)\n"; - LksStream << " PROVIDE_HIDDEN(.omp_offloading.entries_end = .);\n"; - LksStream << " }\n"; - LksStream << "}\n"; - LksStream << "INSERT BEFORE .data\n"; - LksStream.flush(); - - // Dump the contents of the linker script if the user requested that. We - // support this option to enable testing of behavior with -###. - if (C.getArgs().hasArg(options::OPT_fopenmp_dump_offload_linker_script)) - llvm::errs() << LksBuffer; - - // If this is a dry run, do not create the linker script file. - if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) - return; - - // Open script file and write the contents. - std::error_code EC; - llvm::raw_fd_ostream Lksf(LKS, EC, llvm::sys::fs::F_None); - - if (EC) { - C.getDriver().Diag(clang::diag::err_unable_to_make_temp) << EC.message(); - return; - } - - Lksf << LksBuffer; -} - -/// \brief Determine whether Objective-C automated reference counting is -/// enabled. -static bool isObjCAutoRefCount(const ArgList &Args) { - return Args.hasFlag(options::OPT_fobjc_arc, options::OPT_fno_objc_arc, false); -} - -/// \brief Determine whether we are linking the ObjC runtime. -static bool isObjCRuntimeLinked(const ArgList &Args) { - if (isObjCAutoRefCount(Args)) { - Args.ClaimAllArgs(options::OPT_fobjc_link_runtime); - return true; - } - return Args.hasArg(options::OPT_fobjc_link_runtime); -} - -static bool forwardToGCC(const Option &O) { - // Don't forward inputs from the original command line. They are added from - // InputInfoList. - return O.getKind() != Option::InputClass && - !O.hasFlag(options::DriverOption) && !O.hasFlag(options::LinkerInput); -} - -/// Apply \a Work on the current tool chain \a RegularToolChain and any other -/// offloading tool chain that is associated with the current action \a JA. -static void -forAllAssociatedToolChains(Compilation &C, const JobAction &JA, - const ToolChain &RegularToolChain, - llvm::function_ref<void(const ToolChain &)> Work) { - // Apply Work on the current/regular tool chain. - Work(RegularToolChain); - - // Apply Work on all the offloading tool chains associated with the current - // action. - if (JA.isHostOffloading(Action::OFK_Cuda)) - Work(*C.getSingleOffloadToolChain<Action::OFK_Cuda>()); - else if (JA.isDeviceOffloading(Action::OFK_Cuda)) - Work(*C.getSingleOffloadToolChain<Action::OFK_Host>()); - - // - // TODO: Add support for other offloading programming models here. - // -} - -void Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA, - const Driver &D, const ArgList &Args, - ArgStringList &CmdArgs, - const InputInfo &Output, - const InputInfoList &Inputs) const { - Arg *A; - const bool IsIAMCU = getToolChain().getTriple().isOSIAMCU(); - - CheckPreprocessingOptions(D, Args); - - Args.AddLastArg(CmdArgs, options::OPT_C); - Args.AddLastArg(CmdArgs, options::OPT_CC); - - // Handle dependency file generation. - if ((A = Args.getLastArg(options::OPT_M, options::OPT_MM)) || - (A = Args.getLastArg(options::OPT_MD)) || - (A = Args.getLastArg(options::OPT_MMD))) { - // Determine the output location. - const char *DepFile; - if (Arg *MF = Args.getLastArg(options::OPT_MF)) { - DepFile = MF->getValue(); - C.addFailureResultFile(DepFile, &JA); - } else if (Output.getType() == types::TY_Dependencies) { - DepFile = Output.getFilename(); - } else if (A->getOption().matches(options::OPT_M) || - A->getOption().matches(options::OPT_MM)) { - DepFile = "-"; - } else { - DepFile = getDependencyFileName(Args, Inputs); - C.addFailureResultFile(DepFile, &JA); - } - CmdArgs.push_back("-dependency-file"); - CmdArgs.push_back(DepFile); - - // Add a default target if one wasn't specified. - if (!Args.hasArg(options::OPT_MT) && !Args.hasArg(options::OPT_MQ)) { - const char *DepTarget; - - // If user provided -o, that is the dependency target, except - // when we are only generating a dependency file. - Arg *OutputOpt = Args.getLastArg(options::OPT_o); - if (OutputOpt && Output.getType() != types::TY_Dependencies) { - DepTarget = OutputOpt->getValue(); - } else { - // Otherwise derive from the base input. - // - // FIXME: This should use the computed output file location. - SmallString<128> P(Inputs[0].getBaseInput()); - llvm::sys::path::replace_extension(P, "o"); - DepTarget = Args.MakeArgString(llvm::sys::path::filename(P)); - } - - CmdArgs.push_back("-MT"); - SmallString<128> Quoted; - QuoteTarget(DepTarget, Quoted); - CmdArgs.push_back(Args.MakeArgString(Quoted)); - } - - if (A->getOption().matches(options::OPT_M) || - A->getOption().matches(options::OPT_MD)) - CmdArgs.push_back("-sys-header-deps"); - if ((isa<PrecompileJobAction>(JA) && - !Args.hasArg(options::OPT_fno_module_file_deps)) || - Args.hasArg(options::OPT_fmodule_file_deps)) - CmdArgs.push_back("-module-file-deps"); - } - - if (Args.hasArg(options::OPT_MG)) { - if (!A || A->getOption().matches(options::OPT_MD) || - A->getOption().matches(options::OPT_MMD)) - D.Diag(diag::err_drv_mg_requires_m_or_mm); - CmdArgs.push_back("-MG"); - } - - Args.AddLastArg(CmdArgs, options::OPT_MP); - Args.AddLastArg(CmdArgs, options::OPT_MV); - - // Convert all -MQ <target> args to -MT <quoted target> - for (const Arg *A : Args.filtered(options::OPT_MT, options::OPT_MQ)) { - A->claim(); - - if (A->getOption().matches(options::OPT_MQ)) { - CmdArgs.push_back("-MT"); - SmallString<128> Quoted; - QuoteTarget(A->getValue(), Quoted); - CmdArgs.push_back(Args.MakeArgString(Quoted)); - - // -MT flag - no change - } else { - A->render(Args, CmdArgs); - } - } - - // Add offload include arguments specific for CUDA. This must happen before - // we -I or -include anything else, because we must pick up the CUDA headers - // from the particular CUDA installation, rather than from e.g. - // /usr/local/include. - if (JA.isOffloading(Action::OFK_Cuda)) - getToolChain().AddCudaIncludeArgs(Args, CmdArgs); - - // Add -i* options, and automatically translate to - // -include-pch/-include-pth for transparent PCH support. It's - // wonky, but we include looking for .gch so we can support seamless - // replacement into a build system already set up to be generating - // .gch files. - int YcIndex = -1, YuIndex = -1; - { - int AI = -1; - const Arg *YcArg = Args.getLastArg(options::OPT__SLASH_Yc); - const Arg *YuArg = Args.getLastArg(options::OPT__SLASH_Yu); - for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) { - // Walk the whole i_Group and skip non "-include" flags so that the index - // here matches the index in the next loop below. - ++AI; - if (!A->getOption().matches(options::OPT_include)) - continue; - if (YcArg && strcmp(A->getValue(), YcArg->getValue()) == 0) - YcIndex = AI; - if (YuArg && strcmp(A->getValue(), YuArg->getValue()) == 0) - YuIndex = AI; - } - } - if (isa<PrecompileJobAction>(JA) && YcIndex != -1) { - Driver::InputList Inputs; - D.BuildInputs(getToolChain(), C.getArgs(), Inputs); - assert(Inputs.size() == 1 && "Need one input when building pch"); - CmdArgs.push_back(Args.MakeArgString(Twine("-find-pch-source=") + - Inputs[0].second->getValue())); - } - - bool RenderedImplicitInclude = false; - int AI = -1; - for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) { - ++AI; - - if (getToolChain().getDriver().IsCLMode() && - A->getOption().matches(options::OPT_include)) { - // In clang-cl mode, /Ycfoo.h means that all code up to a foo.h - // include is compiled into foo.h, and everything after goes into - // the .obj file. /Yufoo.h means that all includes prior to and including - // foo.h are completely skipped and replaced with a use of the pch file - // for foo.h. (Each flag can have at most one value, multiple /Yc flags - // just mean that the last one wins.) If /Yc and /Yu are both present - // and refer to the same file, /Yc wins. - // Note that OPT__SLASH_FI gets mapped to OPT_include. - // FIXME: The code here assumes that /Yc and /Yu refer to the same file. - // cl.exe seems to support both flags with different values, but that - // seems strange (which flag does /Fp now refer to?), so don't implement - // that until someone needs it. - int PchIndex = YcIndex != -1 ? YcIndex : YuIndex; - if (PchIndex != -1) { - if (isa<PrecompileJobAction>(JA)) { - // When building the pch, skip all includes after the pch. - assert(YcIndex != -1 && PchIndex == YcIndex); - if (AI >= YcIndex) - continue; - } else { - // When using the pch, skip all includes prior to the pch. - if (AI < PchIndex) { - A->claim(); - continue; - } - if (AI == PchIndex) { - A->claim(); - CmdArgs.push_back("-include-pch"); - CmdArgs.push_back( - Args.MakeArgString(D.GetClPchPath(C, A->getValue()))); - continue; - } - } - } - } else if (A->getOption().matches(options::OPT_include)) { - // Handling of gcc-style gch precompiled headers. - bool IsFirstImplicitInclude = !RenderedImplicitInclude; - RenderedImplicitInclude = true; - - // Use PCH if the user requested it. - bool UsePCH = D.CCCUsePCH; - - bool FoundPTH = false; - bool FoundPCH = false; - SmallString<128> P(A->getValue()); - // We want the files to have a name like foo.h.pch. Add a dummy extension - // so that replace_extension does the right thing. - P += ".dummy"; - if (UsePCH) { - llvm::sys::path::replace_extension(P, "pch"); - if (llvm::sys::fs::exists(P)) - FoundPCH = true; - } - - if (!FoundPCH) { - llvm::sys::path::replace_extension(P, "pth"); - if (llvm::sys::fs::exists(P)) - FoundPTH = true; - } - - if (!FoundPCH && !FoundPTH) { - llvm::sys::path::replace_extension(P, "gch"); - if (llvm::sys::fs::exists(P)) { - FoundPCH = UsePCH; - FoundPTH = !UsePCH; - } - } - - if (FoundPCH || FoundPTH) { - if (IsFirstImplicitInclude) { - A->claim(); - if (UsePCH) - CmdArgs.push_back("-include-pch"); - else - CmdArgs.push_back("-include-pth"); - CmdArgs.push_back(Args.MakeArgString(P)); - continue; - } else { - // Ignore the PCH if not first on command line and emit warning. - D.Diag(diag::warn_drv_pch_not_first_include) << P - << A->getAsString(Args); - } - } - } else if (A->getOption().matches(options::OPT_isystem_after)) { - // Handling of paths which must come late. These entries are handled by - // the toolchain itself after the resource dir is inserted in the right - // search order. - // Do not claim the argument so that the use of the argument does not - // silently go unnoticed on toolchains which do not honour the option. - continue; - } - - // Not translated, render as usual. - A->claim(); - A->render(Args, CmdArgs); - } - - Args.AddAllArgs(CmdArgs, - {options::OPT_D, options::OPT_U, options::OPT_I_Group, - options::OPT_F, options::OPT_index_header_map}); - - // Add -Wp, and -Xpreprocessor if using the preprocessor. - - // FIXME: There is a very unfortunate problem here, some troubled - // souls abuse -Wp, to pass preprocessor options in gcc syntax. To - // really support that we would have to parse and then translate - // those options. :( - Args.AddAllArgValues(CmdArgs, options::OPT_Wp_COMMA, - options::OPT_Xpreprocessor); - - // -I- is a deprecated GCC feature, reject it. - if (Arg *A = Args.getLastArg(options::OPT_I_)) - D.Diag(diag::err_drv_I_dash_not_supported) << A->getAsString(Args); - - // If we have a --sysroot, and don't have an explicit -isysroot flag, add an - // -isysroot to the CC1 invocation. - StringRef sysroot = C.getSysRoot(); - if (sysroot != "") { - if (!Args.hasArg(options::OPT_isysroot)) { - CmdArgs.push_back("-isysroot"); - CmdArgs.push_back(C.getArgs().MakeArgString(sysroot)); - } - } - - // Parse additional include paths from environment variables. - // FIXME: We should probably sink the logic for handling these from the - // frontend into the driver. It will allow deleting 4 otherwise unused flags. - // CPATH - included following the user specified includes (but prior to - // builtin and standard includes). - addDirectoryList(Args, CmdArgs, "-I", "CPATH"); - // C_INCLUDE_PATH - system includes enabled when compiling C. - addDirectoryList(Args, CmdArgs, "-c-isystem", "C_INCLUDE_PATH"); - // CPLUS_INCLUDE_PATH - system includes enabled when compiling C++. - addDirectoryList(Args, CmdArgs, "-cxx-isystem", "CPLUS_INCLUDE_PATH"); - // OBJC_INCLUDE_PATH - system includes enabled when compiling ObjC. - addDirectoryList(Args, CmdArgs, "-objc-isystem", "OBJC_INCLUDE_PATH"); - // OBJCPLUS_INCLUDE_PATH - system includes enabled when compiling ObjC++. - addDirectoryList(Args, CmdArgs, "-objcxx-isystem", "OBJCPLUS_INCLUDE_PATH"); - - // While adding the include arguments, we also attempt to retrieve the - // arguments of related offloading toolchains or arguments that are specific - // of an offloading programming model. - - // Add C++ include arguments, if needed. - if (types::isCXX(Inputs[0].getType())) - forAllAssociatedToolChains(C, JA, getToolChain(), - [&Args, &CmdArgs](const ToolChain &TC) { - TC.AddClangCXXStdlibIncludeArgs(Args, CmdArgs); - }); - - // Add system include arguments for all targets but IAMCU. - if (!IsIAMCU) - forAllAssociatedToolChains(C, JA, getToolChain(), - [&Args, &CmdArgs](const ToolChain &TC) { - TC.AddClangSystemIncludeArgs(Args, CmdArgs); - }); - else { - // For IAMCU add special include arguments. - getToolChain().AddIAMCUIncludeArgs(Args, CmdArgs); - } -} - -// FIXME: Move to target hook. -static bool isSignedCharDefault(const llvm::Triple &Triple) { - switch (Triple.getArch()) { - default: - return true; - - case llvm::Triple::aarch64: - case llvm::Triple::aarch64_be: - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: - if (Triple.isOSDarwin() || Triple.isOSWindows()) - return true; - return false; - - case llvm::Triple::ppc: - case llvm::Triple::ppc64: - if (Triple.isOSDarwin()) - return true; - return false; - - case llvm::Triple::hexagon: - case llvm::Triple::ppc64le: - case llvm::Triple::systemz: - case llvm::Triple::xcore: - return false; - } -} - -static bool isNoCommonDefault(const llvm::Triple &Triple) { - switch (Triple.getArch()) { - default: - return false; - - case llvm::Triple::xcore: - case llvm::Triple::wasm32: - case llvm::Triple::wasm64: - return true; - } -} - -// ARM tools start. - -// Get SubArch (vN). -static int getARMSubArchVersionNumber(const llvm::Triple &Triple) { - llvm::StringRef Arch = Triple.getArchName(); - return llvm::ARM::parseArchVersion(Arch); -} - -// True if M-profile. -static bool isARMMProfile(const llvm::Triple &Triple) { - llvm::StringRef Arch = Triple.getArchName(); - unsigned Profile = llvm::ARM::parseArchProfile(Arch); - return Profile == llvm::ARM::PK_M; -} - -// Get Arch/CPU from args. -static void getARMArchCPUFromArgs(const ArgList &Args, llvm::StringRef &Arch, - llvm::StringRef &CPU, bool FromAs = false) { - if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) - CPU = A->getValue(); - if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) - Arch = A->getValue(); - if (!FromAs) - return; - - for (const Arg *A : - Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) { - StringRef Value = A->getValue(); - if (Value.startswith("-mcpu=")) - CPU = Value.substr(6); - if (Value.startswith("-march=")) - Arch = Value.substr(7); - } -} - -// Handle -mhwdiv=. -// FIXME: Use ARMTargetParser. -static void getARMHWDivFeatures(const Driver &D, const Arg *A, - const ArgList &Args, StringRef HWDiv, - std::vector<StringRef> &Features) { - unsigned HWDivID = llvm::ARM::parseHWDiv(HWDiv); - if (!llvm::ARM::getHWDivFeatures(HWDivID, Features)) - D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); -} - -// Handle -mfpu=. -static void getARMFPUFeatures(const Driver &D, const Arg *A, - const ArgList &Args, StringRef FPU, - std::vector<StringRef> &Features) { - unsigned FPUID = llvm::ARM::parseFPU(FPU); - if (!llvm::ARM::getFPUFeatures(FPUID, Features)) - D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); -} - -// Decode ARM features from string like +[no]featureA+[no]featureB+... -static bool DecodeARMFeatures(const Driver &D, StringRef text, - std::vector<StringRef> &Features) { - SmallVector<StringRef, 8> Split; - text.split(Split, StringRef("+"), -1, false); - - for (StringRef Feature : Split) { - StringRef FeatureName = llvm::ARM::getArchExtFeature(Feature); - if (!FeatureName.empty()) - Features.push_back(FeatureName); - else - return false; - } - return true; -} - -// Check if -march is valid by checking if it can be canonicalised and parsed. -// getARMArch is used here instead of just checking the -march value in order -// to handle -march=native correctly. -static void checkARMArchName(const Driver &D, const Arg *A, const ArgList &Args, - llvm::StringRef ArchName, - std::vector<StringRef> &Features, - const llvm::Triple &Triple) { - std::pair<StringRef, StringRef> Split = ArchName.split("+"); - - std::string MArch = arm::getARMArch(ArchName, Triple); - if (llvm::ARM::parseArch(MArch) == llvm::ARM::AK_INVALID || - (Split.second.size() && !DecodeARMFeatures(D, Split.second, Features))) - D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); -} - -// Check -mcpu=. Needs ArchName to handle -mcpu=generic. -static void checkARMCPUName(const Driver &D, const Arg *A, const ArgList &Args, - llvm::StringRef CPUName, llvm::StringRef ArchName, - std::vector<StringRef> &Features, - const llvm::Triple &Triple) { - std::pair<StringRef, StringRef> Split = CPUName.split("+"); - - std::string CPU = arm::getARMTargetCPU(CPUName, ArchName, Triple); - if (arm::getLLVMArchSuffixForARM(CPU, ArchName, Triple).empty() || - (Split.second.size() && !DecodeARMFeatures(D, Split.second, Features))) - D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); -} - -static bool useAAPCSForMachO(const llvm::Triple &T) { - // The backend is hardwired to assume AAPCS for M-class processors, ensure - // the frontend matches that. - return T.getEnvironment() == llvm::Triple::EABI || - T.getOS() == llvm::Triple::UnknownOS || isARMMProfile(T); -} - -// Select the float ABI as determined by -msoft-float, -mhard-float, and -// -mfloat-abi=. -arm::FloatABI arm::getARMFloatABI(const ToolChain &TC, const ArgList &Args) { - const Driver &D = TC.getDriver(); - const llvm::Triple &Triple = TC.getEffectiveTriple(); - auto SubArch = getARMSubArchVersionNumber(Triple); - arm::FloatABI ABI = FloatABI::Invalid; - if (Arg *A = - Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float, - options::OPT_mfloat_abi_EQ)) { - if (A->getOption().matches(options::OPT_msoft_float)) { - ABI = FloatABI::Soft; - } else if (A->getOption().matches(options::OPT_mhard_float)) { - ABI = FloatABI::Hard; - } else { - ABI = llvm::StringSwitch<arm::FloatABI>(A->getValue()) - .Case("soft", FloatABI::Soft) - .Case("softfp", FloatABI::SoftFP) - .Case("hard", FloatABI::Hard) - .Default(FloatABI::Invalid); - if (ABI == FloatABI::Invalid && !StringRef(A->getValue()).empty()) { - D.Diag(diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args); - ABI = FloatABI::Soft; - } - } - - // It is incorrect to select hard float ABI on MachO platforms if the ABI is - // "apcs-gnu". - if (Triple.isOSBinFormatMachO() && !useAAPCSForMachO(Triple) && - ABI == FloatABI::Hard) { - D.Diag(diag::err_drv_unsupported_opt_for_target) << A->getAsString(Args) - << Triple.getArchName(); - } - } - - // If unspecified, choose the default based on the platform. - if (ABI == FloatABI::Invalid) { - switch (Triple.getOS()) { - case llvm::Triple::Darwin: - case llvm::Triple::MacOSX: - case llvm::Triple::IOS: - case llvm::Triple::TvOS: { - // Darwin defaults to "softfp" for v6 and v7. - ABI = (SubArch == 6 || SubArch == 7) ? FloatABI::SoftFP : FloatABI::Soft; - ABI = Triple.isWatchABI() ? FloatABI::Hard : ABI; - break; - } - case llvm::Triple::WatchOS: - ABI = FloatABI::Hard; - break; - - // FIXME: this is invalid for WindowsCE - case llvm::Triple::Win32: - ABI = FloatABI::Hard; - break; - - case llvm::Triple::FreeBSD: - switch (Triple.getEnvironment()) { - case llvm::Triple::GNUEABIHF: - ABI = FloatABI::Hard; - break; - default: - // FreeBSD defaults to soft float - ABI = FloatABI::Soft; - break; - } - break; - - default: - switch (Triple.getEnvironment()) { - case llvm::Triple::GNUEABIHF: - case llvm::Triple::MuslEABIHF: - case llvm::Triple::EABIHF: - ABI = FloatABI::Hard; - break; - case llvm::Triple::GNUEABI: - case llvm::Triple::MuslEABI: - case llvm::Triple::EABI: - // EABI is always AAPCS, and if it was not marked 'hard', it's softfp - ABI = FloatABI::SoftFP; - break; - case llvm::Triple::Android: - ABI = (SubArch == 7) ? FloatABI::SoftFP : FloatABI::Soft; - break; - default: - // Assume "soft", but warn the user we are guessing. - if (Triple.isOSBinFormatMachO() && - Triple.getSubArch() == llvm::Triple::ARMSubArch_v7em) - ABI = FloatABI::Hard; - else - ABI = FloatABI::Soft; - - if (Triple.getOS() != llvm::Triple::UnknownOS || - !Triple.isOSBinFormatMachO()) - D.Diag(diag::warn_drv_assuming_mfloat_abi_is) << "soft"; - break; - } - } - } - - assert(ABI != FloatABI::Invalid && "must select an ABI"); - return ABI; -} - -static void getARMTargetFeatures(const ToolChain &TC, - const llvm::Triple &Triple, - const ArgList &Args, - ArgStringList &CmdArgs, - std::vector<StringRef> &Features, - bool ForAS) { - const Driver &D = TC.getDriver(); - - bool KernelOrKext = - Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext); - arm::FloatABI ABI = arm::getARMFloatABI(TC, Args); - const Arg *WaCPU = nullptr, *WaFPU = nullptr; - const Arg *WaHDiv = nullptr, *WaArch = nullptr; - - if (!ForAS) { - // FIXME: Note, this is a hack, the LLVM backend doesn't actually use these - // yet (it uses the -mfloat-abi and -msoft-float options), and it is - // stripped out by the ARM target. We should probably pass this a new - // -target-option, which is handled by the -cc1/-cc1as invocation. - // - // FIXME2: For consistency, it would be ideal if we set up the target - // machine state the same when using the frontend or the assembler. We don't - // currently do that for the assembler, we pass the options directly to the - // backend and never even instantiate the frontend TargetInfo. If we did, - // and used its handleTargetFeatures hook, then we could ensure the - // assembler and the frontend behave the same. - - // Use software floating point operations? - if (ABI == arm::FloatABI::Soft) - Features.push_back("+soft-float"); - - // Use software floating point argument passing? - if (ABI != arm::FloatABI::Hard) - Features.push_back("+soft-float-abi"); - } else { - // Here, we make sure that -Wa,-mfpu/cpu/arch/hwdiv will be passed down - // to the assembler correctly. - for (const Arg *A : - Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) { - StringRef Value = A->getValue(); - if (Value.startswith("-mfpu=")) { - WaFPU = A; - } else if (Value.startswith("-mcpu=")) { - WaCPU = A; - } else if (Value.startswith("-mhwdiv=")) { - WaHDiv = A; - } else if (Value.startswith("-march=")) { - WaArch = A; - } - } - } - - // Check -march. ClangAs gives preference to -Wa,-march=. - const Arg *ArchArg = Args.getLastArg(options::OPT_march_EQ); - StringRef ArchName; - if (WaArch) { - if (ArchArg) - D.Diag(clang::diag::warn_drv_unused_argument) - << ArchArg->getAsString(Args); - ArchName = StringRef(WaArch->getValue()).substr(7); - checkARMArchName(D, WaArch, Args, ArchName, Features, Triple); - // FIXME: Set Arch. - D.Diag(clang::diag::warn_drv_unused_argument) << WaArch->getAsString(Args); - } else if (ArchArg) { - ArchName = ArchArg->getValue(); - checkARMArchName(D, ArchArg, Args, ArchName, Features, Triple); - } - - // Check -mcpu. ClangAs gives preference to -Wa,-mcpu=. - const Arg *CPUArg = Args.getLastArg(options::OPT_mcpu_EQ); - StringRef CPUName; - if (WaCPU) { - if (CPUArg) - D.Diag(clang::diag::warn_drv_unused_argument) - << CPUArg->getAsString(Args); - CPUName = StringRef(WaCPU->getValue()).substr(6); - checkARMCPUName(D, WaCPU, Args, CPUName, ArchName, Features, Triple); - } else if (CPUArg) { - CPUName = CPUArg->getValue(); - checkARMCPUName(D, CPUArg, Args, CPUName, ArchName, Features, Triple); - } - - // Add CPU features for generic CPUs - if (CPUName == "native") { - llvm::StringMap<bool> HostFeatures; - if (llvm::sys::getHostCPUFeatures(HostFeatures)) - for (auto &F : HostFeatures) - Features.push_back( - Args.MakeArgString((F.second ? "+" : "-") + F.first())); - } - - // Honor -mfpu=. ClangAs gives preference to -Wa,-mfpu=. - const Arg *FPUArg = Args.getLastArg(options::OPT_mfpu_EQ); - if (WaFPU) { - if (FPUArg) - D.Diag(clang::diag::warn_drv_unused_argument) - << FPUArg->getAsString(Args); - getARMFPUFeatures(D, WaFPU, Args, StringRef(WaFPU->getValue()).substr(6), - Features); - } else if (FPUArg) { - getARMFPUFeatures(D, FPUArg, Args, FPUArg->getValue(), Features); - } - - // Honor -mhwdiv=. ClangAs gives preference to -Wa,-mhwdiv=. - const Arg *HDivArg = Args.getLastArg(options::OPT_mhwdiv_EQ); - if (WaHDiv) { - if (HDivArg) - D.Diag(clang::diag::warn_drv_unused_argument) - << HDivArg->getAsString(Args); - getARMHWDivFeatures(D, WaHDiv, Args, - StringRef(WaHDiv->getValue()).substr(8), Features); - } else if (HDivArg) - getARMHWDivFeatures(D, HDivArg, Args, HDivArg->getValue(), Features); - - // Setting -msoft-float effectively disables NEON because of the GCC - // implementation, although the same isn't true of VFP or VFP3. - if (ABI == arm::FloatABI::Soft) { - Features.push_back("-neon"); - // Also need to explicitly disable features which imply NEON. - Features.push_back("-crypto"); - } - - // En/disable crc code generation. - if (Arg *A = Args.getLastArg(options::OPT_mcrc, options::OPT_mnocrc)) { - if (A->getOption().matches(options::OPT_mcrc)) - Features.push_back("+crc"); - else - Features.push_back("-crc"); - } - - // Look for the last occurrence of -mlong-calls or -mno-long-calls. If - // neither options are specified, see if we are compiling for kernel/kext and - // decide whether to pass "+long-calls" based on the OS and its version. - if (Arg *A = Args.getLastArg(options::OPT_mlong_calls, - options::OPT_mno_long_calls)) { - if (A->getOption().matches(options::OPT_mlong_calls)) - Features.push_back("+long-calls"); - } else if (KernelOrKext && (!Triple.isiOS() || Triple.isOSVersionLT(6)) && - !Triple.isWatchOS()) { - Features.push_back("+long-calls"); - } - - // Generate execute-only output (no data access to code sections). - // Supported only on ARMv6T2 and ARMv7 and above. - // Cannot be combined with -mno-movt or -mlong-calls - if (Arg *A = Args.getLastArg(options::OPT_mexecute_only, options::OPT_mno_execute_only)) { - if (A->getOption().matches(options::OPT_mexecute_only)) { - if (getARMSubArchVersionNumber(Triple) < 7 && - llvm::ARM::parseArch(Triple.getArchName()) != llvm::ARM::AK_ARMV6T2) - D.Diag(diag::err_target_unsupported_execute_only) << Triple.getArchName(); - else if (Arg *B = Args.getLastArg(options::OPT_mno_movt)) - D.Diag(diag::err_opt_not_valid_with_opt) << A->getAsString(Args) << B->getAsString(Args); - // Long calls create constant pool entries and have not yet been fixed up - // to play nicely with execute-only. Hence, they cannot be used in - // execute-only code for now - else if (Arg *B = Args.getLastArg(options::OPT_mlong_calls, options::OPT_mno_long_calls)) { - if (B->getOption().matches(options::OPT_mlong_calls)) - D.Diag(diag::err_opt_not_valid_with_opt) << A->getAsString(Args) << B->getAsString(Args); - } - - CmdArgs.push_back("-backend-option"); - CmdArgs.push_back("-arm-execute-only"); - } - } - - // Kernel code has more strict alignment requirements. - if (KernelOrKext) - Features.push_back("+strict-align"); - else if (Arg *A = Args.getLastArg(options::OPT_mno_unaligned_access, - options::OPT_munaligned_access)) { - if (A->getOption().matches(options::OPT_munaligned_access)) { - // No v6M core supports unaligned memory access (v6M ARM ARM A3.2). - if (Triple.getSubArch() == llvm::Triple::SubArchType::ARMSubArch_v6m) - D.Diag(diag::err_target_unsupported_unaligned) << "v6m"; - // v8M Baseline follows on from v6M, so doesn't support unaligned memory - // access either. - else if (Triple.getSubArch() == llvm::Triple::SubArchType::ARMSubArch_v8m_baseline) - D.Diag(diag::err_target_unsupported_unaligned) << "v8m.base"; - } else - Features.push_back("+strict-align"); - } else { - // Assume pre-ARMv6 doesn't support unaligned accesses. - // - // ARMv6 may or may not support unaligned accesses depending on the - // SCTLR.U bit, which is architecture-specific. We assume ARMv6 - // Darwin and NetBSD targets support unaligned accesses, and others don't. - // - // ARMv7 always has SCTLR.U set to 1, but it has a new SCTLR.A bit - // which raises an alignment fault on unaligned accesses. Linux - // defaults this bit to 0 and handles it as a system-wide (not - // per-process) setting. It is therefore safe to assume that ARMv7+ - // Linux targets support unaligned accesses. The same goes for NaCl. - // - // The above behavior is consistent with GCC. - int VersionNum = getARMSubArchVersionNumber(Triple); - if (Triple.isOSDarwin() || Triple.isOSNetBSD()) { - if (VersionNum < 6 || - Triple.getSubArch() == llvm::Triple::SubArchType::ARMSubArch_v6m) - Features.push_back("+strict-align"); - } else if (Triple.isOSLinux() || Triple.isOSNaCl()) { - if (VersionNum < 7) - Features.push_back("+strict-align"); - } else - Features.push_back("+strict-align"); - } - - // llvm does not support reserving registers in general. There is support - // for reserving r9 on ARM though (defined as a platform-specific register - // in ARM EABI). - if (Args.hasArg(options::OPT_ffixed_r9)) - Features.push_back("+reserve-r9"); - - // The kext linker doesn't know how to deal with movw/movt. - if (KernelOrKext || Args.hasArg(options::OPT_mno_movt)) - Features.push_back("+no-movt"); -} - -void Clang::AddARMTargetArgs(const llvm::Triple &Triple, const ArgList &Args, - ArgStringList &CmdArgs, bool KernelOrKext) const { - // Select the ABI to use. - // FIXME: Support -meabi. - // FIXME: Parts of this are duplicated in the backend, unify this somehow. - const char *ABIName = nullptr; - if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) { - ABIName = A->getValue(); - } else if (Triple.isOSBinFormatMachO()) { - if (useAAPCSForMachO(Triple)) { - ABIName = "aapcs"; - } else if (Triple.isWatchABI()) { - ABIName = "aapcs16"; - } else { - ABIName = "apcs-gnu"; - } - } else if (Triple.isOSWindows()) { - // FIXME: this is invalid for WindowsCE - ABIName = "aapcs"; - } else { - // Select the default based on the platform. - switch (Triple.getEnvironment()) { - case llvm::Triple::Android: - case llvm::Triple::GNUEABI: - case llvm::Triple::GNUEABIHF: - case llvm::Triple::MuslEABI: - case llvm::Triple::MuslEABIHF: - ABIName = "aapcs-linux"; - break; - case llvm::Triple::EABIHF: - case llvm::Triple::EABI: - ABIName = "aapcs"; - break; - default: - if (Triple.getOS() == llvm::Triple::NetBSD) - ABIName = "apcs-gnu"; - else - ABIName = "aapcs"; - break; - } - } - CmdArgs.push_back("-target-abi"); - CmdArgs.push_back(ABIName); - - // Determine floating point ABI from the options & target defaults. - arm::FloatABI ABI = arm::getARMFloatABI(getToolChain(), Args); - if (ABI == arm::FloatABI::Soft) { - // Floating point operations and argument passing are soft. - // FIXME: This changes CPP defines, we need -target-soft-float. - CmdArgs.push_back("-msoft-float"); - CmdArgs.push_back("-mfloat-abi"); - CmdArgs.push_back("soft"); - } else if (ABI == arm::FloatABI::SoftFP) { - // Floating point operations are hard, but argument passing is soft. - CmdArgs.push_back("-mfloat-abi"); - CmdArgs.push_back("soft"); - } else { - // Floating point operations and argument passing are hard. - assert(ABI == arm::FloatABI::Hard && "Invalid float abi!"); - CmdArgs.push_back("-mfloat-abi"); - CmdArgs.push_back("hard"); - } - - // Forward the -mglobal-merge option for explicit control over the pass. - if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge, - options::OPT_mno_global_merge)) { - CmdArgs.push_back("-backend-option"); - if (A->getOption().matches(options::OPT_mno_global_merge)) - CmdArgs.push_back("-arm-global-merge=false"); - else - CmdArgs.push_back("-arm-global-merge=true"); - } - - if (!Args.hasFlag(options::OPT_mimplicit_float, - options::OPT_mno_implicit_float, true)) - CmdArgs.push_back("-no-implicit-float"); -} -// ARM tools end. - -/// getAArch64TargetCPU - Get the (LLVM) name of the AArch64 cpu we are -/// targeting. Set \p A to the Arg corresponding to the -mcpu or -mtune -/// arguments if they are provided, or to nullptr otherwise. -static std::string getAArch64TargetCPU(const ArgList &Args, Arg *&A) { - std::string CPU; - // If we have -mtune or -mcpu, use that. - if ((A = Args.getLastArg(options::OPT_mtune_EQ))) { - CPU = StringRef(A->getValue()).lower(); - } else if ((A = Args.getLastArg(options::OPT_mcpu_EQ))) { - StringRef Mcpu = A->getValue(); - CPU = Mcpu.split("+").first.lower(); - } - - // Handle CPU name is 'native'. - if (CPU == "native") - return llvm::sys::getHostCPUName(); - else if (CPU.size()) - return CPU; - - // Make sure we pick "cyclone" if -arch is used. - // FIXME: Should this be picked by checking the target triple instead? - if (Args.getLastArg(options::OPT_arch)) - return "cyclone"; - - return "generic"; -} - -void Clang::AddAArch64TargetArgs(const ArgList &Args, - ArgStringList &CmdArgs) const { - const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); - - if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) || - Args.hasArg(options::OPT_mkernel) || - Args.hasArg(options::OPT_fapple_kext)) - CmdArgs.push_back("-disable-red-zone"); - - if (!Args.hasFlag(options::OPT_mimplicit_float, - options::OPT_mno_implicit_float, true)) - CmdArgs.push_back("-no-implicit-float"); - - const char *ABIName = nullptr; - if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) - ABIName = A->getValue(); - else if (Triple.isOSDarwin()) - ABIName = "darwinpcs"; - else - ABIName = "aapcs"; - - CmdArgs.push_back("-target-abi"); - CmdArgs.push_back(ABIName); - - if (Arg *A = Args.getLastArg(options::OPT_mfix_cortex_a53_835769, - options::OPT_mno_fix_cortex_a53_835769)) { - CmdArgs.push_back("-backend-option"); - if (A->getOption().matches(options::OPT_mfix_cortex_a53_835769)) - CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1"); - else - CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=0"); - } else if (Triple.isAndroid()) { - // Enabled A53 errata (835769) workaround by default on android - CmdArgs.push_back("-backend-option"); - CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1"); - } - - // Forward the -mglobal-merge option for explicit control over the pass. - if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge, - options::OPT_mno_global_merge)) { - CmdArgs.push_back("-backend-option"); - if (A->getOption().matches(options::OPT_mno_global_merge)) - CmdArgs.push_back("-aarch64-global-merge=false"); - else - CmdArgs.push_back("-aarch64-global-merge=true"); - } -} - -// Get CPU and ABI names. They are not independent -// so we have to calculate them together. -void mips::getMipsCPUAndABI(const ArgList &Args, const llvm::Triple &Triple, - StringRef &CPUName, StringRef &ABIName) { - const char *DefMips32CPU = "mips32r2"; - const char *DefMips64CPU = "mips64r2"; - - // MIPS32r6 is the default for mips(el)?-img-linux-gnu and MIPS64r6 is the - // default for mips64(el)?-img-linux-gnu. - if (Triple.getVendor() == llvm::Triple::ImaginationTechnologies && - Triple.getEnvironment() == llvm::Triple::GNU) { - DefMips32CPU = "mips32r6"; - DefMips64CPU = "mips64r6"; - } - - // MIPS64r6 is the default for Android MIPS64 (mips64el-linux-android). - if (Triple.isAndroid()) { - DefMips32CPU = "mips32"; - DefMips64CPU = "mips64r6"; - } - - // MIPS3 is the default for mips64*-unknown-openbsd. - if (Triple.getOS() == llvm::Triple::OpenBSD) - DefMips64CPU = "mips3"; - - if (Arg *A = Args.getLastArg(options::OPT_march_EQ, options::OPT_mcpu_EQ)) - CPUName = A->getValue(); - - if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) { - ABIName = A->getValue(); - // Convert a GNU style Mips ABI name to the name - // accepted by LLVM Mips backend. - ABIName = llvm::StringSwitch<llvm::StringRef>(ABIName) - .Case("32", "o32") - .Case("64", "n64") - .Default(ABIName); - } - - // Setup default CPU and ABI names. - if (CPUName.empty() && ABIName.empty()) { - switch (Triple.getArch()) { - default: - llvm_unreachable("Unexpected triple arch name"); - case llvm::Triple::mips: - case llvm::Triple::mipsel: - CPUName = DefMips32CPU; - break; - case llvm::Triple::mips64: - case llvm::Triple::mips64el: - CPUName = DefMips64CPU; - break; - } - } - - if (ABIName.empty() && - (Triple.getVendor() == llvm::Triple::MipsTechnologies || - Triple.getVendor() == llvm::Triple::ImaginationTechnologies)) { - ABIName = llvm::StringSwitch<const char *>(CPUName) - .Case("mips1", "o32") - .Case("mips2", "o32") - .Case("mips3", "n64") - .Case("mips4", "n64") - .Case("mips5", "n64") - .Case("mips32", "o32") - .Case("mips32r2", "o32") - .Case("mips32r3", "o32") - .Case("mips32r5", "o32") - .Case("mips32r6", "o32") - .Case("mips64", "n64") - .Case("mips64r2", "n64") - .Case("mips64r3", "n64") - .Case("mips64r5", "n64") - .Case("mips64r6", "n64") - .Case("octeon", "n64") - .Case("p5600", "o32") - .Default(""); - } - - if (ABIName.empty()) { - // Deduce ABI name from the target triple. - if (Triple.getArch() == llvm::Triple::mips || - Triple.getArch() == llvm::Triple::mipsel) - ABIName = "o32"; - else - ABIName = "n64"; - } - - if (CPUName.empty()) { - // Deduce CPU name from ABI name. - CPUName = llvm::StringSwitch<const char *>(ABIName) - .Case("o32", DefMips32CPU) - .Cases("n32", "n64", DefMips64CPU) - .Default(""); - } - - // FIXME: Warn on inconsistent use of -march and -mabi. -} - -std::string mips::getMipsABILibSuffix(const ArgList &Args, - const llvm::Triple &Triple) { - StringRef CPUName, ABIName; - tools::mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); - return llvm::StringSwitch<std::string>(ABIName) - .Case("o32", "") - .Case("n32", "32") - .Case("n64", "64"); -} - -// Convert ABI name to the GNU tools acceptable variant. -static StringRef getGnuCompatibleMipsABIName(StringRef ABI) { - return llvm::StringSwitch<llvm::StringRef>(ABI) - .Case("o32", "32") - .Case("n64", "64") - .Default(ABI); -} - -// Select the MIPS float ABI as determined by -msoft-float, -mhard-float, -// and -mfloat-abi=. -static mips::FloatABI getMipsFloatABI(const Driver &D, const ArgList &Args) { - mips::FloatABI ABI = mips::FloatABI::Invalid; - if (Arg *A = - Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float, - options::OPT_mfloat_abi_EQ)) { - if (A->getOption().matches(options::OPT_msoft_float)) - ABI = mips::FloatABI::Soft; - else if (A->getOption().matches(options::OPT_mhard_float)) - ABI = mips::FloatABI::Hard; - else { - ABI = llvm::StringSwitch<mips::FloatABI>(A->getValue()) - .Case("soft", mips::FloatABI::Soft) - .Case("hard", mips::FloatABI::Hard) - .Default(mips::FloatABI::Invalid); - if (ABI == mips::FloatABI::Invalid && !StringRef(A->getValue()).empty()) { - D.Diag(diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args); - ABI = mips::FloatABI::Hard; - } - } - } - - // If unspecified, choose the default based on the platform. - if (ABI == mips::FloatABI::Invalid) { - // Assume "hard", because it's a default value used by gcc. - // When we start to recognize specific target MIPS processors, - // we will be able to select the default more correctly. - ABI = mips::FloatABI::Hard; - } - - assert(ABI != mips::FloatABI::Invalid && "must select an ABI"); - return ABI; -} - -static void AddTargetFeature(const ArgList &Args, - std::vector<StringRef> &Features, - OptSpecifier OnOpt, OptSpecifier OffOpt, - StringRef FeatureName) { - if (Arg *A = Args.getLastArg(OnOpt, OffOpt)) { - if (A->getOption().matches(OnOpt)) - Features.push_back(Args.MakeArgString("+" + FeatureName)); - else - Features.push_back(Args.MakeArgString("-" + FeatureName)); - } -} - -static void getMIPSTargetFeatures(const Driver &D, const llvm::Triple &Triple, - const ArgList &Args, - std::vector<StringRef> &Features) { - StringRef CPUName; - StringRef ABIName; - mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); - ABIName = getGnuCompatibleMipsABIName(ABIName); - - AddTargetFeature(Args, Features, options::OPT_mno_abicalls, - options::OPT_mabicalls, "noabicalls"); - - mips::FloatABI FloatABI = getMipsFloatABI(D, Args); - if (FloatABI == mips::FloatABI::Soft) { - // FIXME: Note, this is a hack. We need to pass the selected float - // mode to the MipsTargetInfoBase to define appropriate macros there. - // Now it is the only method. - Features.push_back("+soft-float"); - } - - if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) { - StringRef Val = StringRef(A->getValue()); - if (Val == "2008") { - if (mips::getSupportedNanEncoding(CPUName) & mips::Nan2008) - Features.push_back("+nan2008"); - else { - Features.push_back("-nan2008"); - D.Diag(diag::warn_target_unsupported_nan2008) << CPUName; - } - } else if (Val == "legacy") { - if (mips::getSupportedNanEncoding(CPUName) & mips::NanLegacy) - Features.push_back("-nan2008"); - else { - Features.push_back("+nan2008"); - D.Diag(diag::warn_target_unsupported_nanlegacy) << CPUName; - } - } else - D.Diag(diag::err_drv_unsupported_option_argument) - << A->getOption().getName() << Val; - } - - AddTargetFeature(Args, Features, options::OPT_msingle_float, - options::OPT_mdouble_float, "single-float"); - AddTargetFeature(Args, Features, options::OPT_mips16, options::OPT_mno_mips16, - "mips16"); - AddTargetFeature(Args, Features, options::OPT_mmicromips, - options::OPT_mno_micromips, "micromips"); - AddTargetFeature(Args, Features, options::OPT_mdsp, options::OPT_mno_dsp, - "dsp"); - AddTargetFeature(Args, Features, options::OPT_mdspr2, options::OPT_mno_dspr2, - "dspr2"); - AddTargetFeature(Args, Features, options::OPT_mmsa, options::OPT_mno_msa, - "msa"); - - // Add the last -mfp32/-mfpxx/-mfp64, if none are given and the ABI is O32 - // pass -mfpxx, or if none are given and fp64a is default, pass fp64 and - // nooddspreg. - if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx, - options::OPT_mfp64)) { - if (A->getOption().matches(options::OPT_mfp32)) - Features.push_back(Args.MakeArgString("-fp64")); - else if (A->getOption().matches(options::OPT_mfpxx)) { - Features.push_back(Args.MakeArgString("+fpxx")); - Features.push_back(Args.MakeArgString("+nooddspreg")); - } else - Features.push_back(Args.MakeArgString("+fp64")); - } else if (mips::shouldUseFPXX(Args, Triple, CPUName, ABIName, FloatABI)) { - Features.push_back(Args.MakeArgString("+fpxx")); - Features.push_back(Args.MakeArgString("+nooddspreg")); - } else if (mips::isFP64ADefault(Triple, CPUName)) { - Features.push_back(Args.MakeArgString("+fp64")); - Features.push_back(Args.MakeArgString("+nooddspreg")); - } - - AddTargetFeature(Args, Features, options::OPT_mno_odd_spreg, - options::OPT_modd_spreg, "nooddspreg"); -} - -void Clang::AddMIPSTargetArgs(const ArgList &Args, - ArgStringList &CmdArgs) const { - const Driver &D = getToolChain().getDriver(); - StringRef CPUName; - StringRef ABIName; - const llvm::Triple &Triple = getToolChain().getTriple(); - mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); - - CmdArgs.push_back("-target-abi"); - CmdArgs.push_back(ABIName.data()); - - mips::FloatABI ABI = getMipsFloatABI(D, Args); - if (ABI == mips::FloatABI::Soft) { - // Floating point operations and argument passing are soft. - CmdArgs.push_back("-msoft-float"); - CmdArgs.push_back("-mfloat-abi"); - CmdArgs.push_back("soft"); - } else { - // Floating point operations and argument passing are hard. - assert(ABI == mips::FloatABI::Hard && "Invalid float abi!"); - CmdArgs.push_back("-mfloat-abi"); - CmdArgs.push_back("hard"); - } - - if (Arg *A = Args.getLastArg(options::OPT_mxgot, options::OPT_mno_xgot)) { - if (A->getOption().matches(options::OPT_mxgot)) { - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back("-mxgot"); - } - } - - if (Arg *A = Args.getLastArg(options::OPT_mldc1_sdc1, - options::OPT_mno_ldc1_sdc1)) { - if (A->getOption().matches(options::OPT_mno_ldc1_sdc1)) { - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back("-mno-ldc1-sdc1"); - } - } - - if (Arg *A = Args.getLastArg(options::OPT_mcheck_zero_division, - options::OPT_mno_check_zero_division)) { - if (A->getOption().matches(options::OPT_mno_check_zero_division)) { - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back("-mno-check-zero-division"); - } - } - - if (Arg *A = Args.getLastArg(options::OPT_G)) { - StringRef v = A->getValue(); - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back(Args.MakeArgString("-mips-ssection-threshold=" + v)); - A->claim(); - } - - if (Arg *A = Args.getLastArg(options::OPT_mcompact_branches_EQ)) { - StringRef Val = StringRef(A->getValue()); - if (mips::hasCompactBranches(CPUName)) { - if (Val == "never" || Val == "always" || Val == "optimal") { - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back(Args.MakeArgString("-mips-compact-branches=" + Val)); - } else - D.Diag(diag::err_drv_unsupported_option_argument) - << A->getOption().getName() << Val; - } else - D.Diag(diag::warn_target_unsupported_compact_branches) << CPUName; - } -} - -/// getPPCTargetCPU - Get the (LLVM) name of the PowerPC cpu we are targeting. -static std::string getPPCTargetCPU(const ArgList &Args) { - if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { - StringRef CPUName = A->getValue(); - - if (CPUName == "native") { - std::string CPU = llvm::sys::getHostCPUName(); - if (!CPU.empty() && CPU != "generic") - return CPU; - else - return ""; - } - - return llvm::StringSwitch<const char *>(CPUName) - .Case("common", "generic") - .Case("440", "440") - .Case("440fp", "440") - .Case("450", "450") - .Case("601", "601") - .Case("602", "602") - .Case("603", "603") - .Case("603e", "603e") - .Case("603ev", "603ev") - .Case("604", "604") - .Case("604e", "604e") - .Case("620", "620") - .Case("630", "pwr3") - .Case("G3", "g3") - .Case("7400", "7400") - .Case("G4", "g4") - .Case("7450", "7450") - .Case("G4+", "g4+") - .Case("750", "750") - .Case("970", "970") - .Case("G5", "g5") - .Case("a2", "a2") - .Case("a2q", "a2q") - .Case("e500mc", "e500mc") - .Case("e5500", "e5500") - .Case("power3", "pwr3") - .Case("power4", "pwr4") - .Case("power5", "pwr5") - .Case("power5x", "pwr5x") - .Case("power6", "pwr6") - .Case("power6x", "pwr6x") - .Case("power7", "pwr7") - .Case("power8", "pwr8") - .Case("power9", "pwr9") - .Case("pwr3", "pwr3") - .Case("pwr4", "pwr4") - .Case("pwr5", "pwr5") - .Case("pwr5x", "pwr5x") - .Case("pwr6", "pwr6") - .Case("pwr6x", "pwr6x") - .Case("pwr7", "pwr7") - .Case("pwr8", "pwr8") - .Case("pwr9", "pwr9") - .Case("powerpc", "ppc") - .Case("powerpc64", "ppc64") - .Case("powerpc64le", "ppc64le") - .Default(""); - } - - return ""; -} - -static void getPPCTargetFeatures(const Driver &D, const llvm::Triple &Triple, - const ArgList &Args, - std::vector<StringRef> &Features) { - handleTargetFeaturesGroup(Args, Features, options::OPT_m_ppc_Features_Group); - - ppc::FloatABI FloatABI = ppc::getPPCFloatABI(D, Args); - if (FloatABI == ppc::FloatABI::Soft) - Features.push_back("-hard-float"); - - // Altivec is a bit weird, allow overriding of the Altivec feature here. - AddTargetFeature(Args, Features, options::OPT_faltivec, - options::OPT_fno_altivec, "altivec"); -} - -ppc::FloatABI ppc::getPPCFloatABI(const Driver &D, const ArgList &Args) { - ppc::FloatABI ABI = ppc::FloatABI::Invalid; - if (Arg *A = - Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float, - options::OPT_mfloat_abi_EQ)) { - if (A->getOption().matches(options::OPT_msoft_float)) - ABI = ppc::FloatABI::Soft; - else if (A->getOption().matches(options::OPT_mhard_float)) - ABI = ppc::FloatABI::Hard; - else { - ABI = llvm::StringSwitch<ppc::FloatABI>(A->getValue()) - .Case("soft", ppc::FloatABI::Soft) - .Case("hard", ppc::FloatABI::Hard) - .Default(ppc::FloatABI::Invalid); - if (ABI == ppc::FloatABI::Invalid && !StringRef(A->getValue()).empty()) { - D.Diag(diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args); - ABI = ppc::FloatABI::Hard; - } - } - } - - // If unspecified, choose the default based on the platform. - if (ABI == ppc::FloatABI::Invalid) { - ABI = ppc::FloatABI::Hard; - } - - return ABI; -} - -void Clang::AddPPCTargetArgs(const ArgList &Args, - ArgStringList &CmdArgs) const { - // Select the ABI to use. - const char *ABIName = nullptr; - if (getToolChain().getTriple().isOSLinux()) - switch (getToolChain().getArch()) { - case llvm::Triple::ppc64: { - // When targeting a processor that supports QPX, or if QPX is - // specifically enabled, default to using the ABI that supports QPX (so - // long as it is not specifically disabled). - bool HasQPX = false; - if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) - HasQPX = A->getValue() == StringRef("a2q"); - HasQPX = Args.hasFlag(options::OPT_mqpx, options::OPT_mno_qpx, HasQPX); - if (HasQPX) { - ABIName = "elfv1-qpx"; - break; - } - - ABIName = "elfv1"; - break; - } - case llvm::Triple::ppc64le: - ABIName = "elfv2"; - break; - default: - break; - } - - if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) - // The ppc64 linux abis are all "altivec" abis by default. Accept and ignore - // the option if given as we don't have backend support for any targets - // that don't use the altivec abi. - if (StringRef(A->getValue()) != "altivec") - ABIName = A->getValue(); - - ppc::FloatABI FloatABI = - ppc::getPPCFloatABI(getToolChain().getDriver(), Args); - - if (FloatABI == ppc::FloatABI::Soft) { - // Floating point operations and argument passing are soft. - CmdArgs.push_back("-msoft-float"); - CmdArgs.push_back("-mfloat-abi"); - CmdArgs.push_back("soft"); - } else { - // Floating point operations and argument passing are hard. - assert(FloatABI == ppc::FloatABI::Hard && "Invalid float abi!"); - CmdArgs.push_back("-mfloat-abi"); - CmdArgs.push_back("hard"); - } - - if (ABIName) { - CmdArgs.push_back("-target-abi"); - CmdArgs.push_back(ABIName); - } -} - -bool ppc::hasPPCAbiArg(const ArgList &Args, const char *Value) { - Arg *A = Args.getLastArg(options::OPT_mabi_EQ); - return A && (A->getValue() == StringRef(Value)); -} - -/// Get the (LLVM) name of the R600 gpu we are targeting. -static std::string getR600TargetGPU(const ArgList &Args) { - if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { - const char *GPUName = A->getValue(); - return llvm::StringSwitch<const char *>(GPUName) - .Cases("rv630", "rv635", "r600") - .Cases("rv610", "rv620", "rs780", "rs880") - .Case("rv740", "rv770") - .Case("palm", "cedar") - .Cases("sumo", "sumo2", "sumo") - .Case("hemlock", "cypress") - .Case("aruba", "cayman") - .Default(GPUName); - } - return ""; -} - -static std::string getLanaiTargetCPU(const ArgList &Args) { - if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { - return A->getValue(); - } - return ""; -} - -sparc::FloatABI sparc::getSparcFloatABI(const Driver &D, - const ArgList &Args) { - sparc::FloatABI ABI = sparc::FloatABI::Invalid; - if (Arg *A = - Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float, - options::OPT_mfloat_abi_EQ)) { - if (A->getOption().matches(options::OPT_msoft_float)) - ABI = sparc::FloatABI::Soft; - else if (A->getOption().matches(options::OPT_mhard_float)) - ABI = sparc::FloatABI::Hard; - else { - ABI = llvm::StringSwitch<sparc::FloatABI>(A->getValue()) - .Case("soft", sparc::FloatABI::Soft) - .Case("hard", sparc::FloatABI::Hard) - .Default(sparc::FloatABI::Invalid); - if (ABI == sparc::FloatABI::Invalid && - !StringRef(A->getValue()).empty()) { - D.Diag(diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args); - ABI = sparc::FloatABI::Hard; - } - } - } - - // If unspecified, choose the default based on the platform. - // Only the hard-float ABI on Sparc is standardized, and it is the - // default. GCC also supports a nonstandard soft-float ABI mode, also - // implemented in LLVM. However as this is not standard we set the default - // to be hard-float. - if (ABI == sparc::FloatABI::Invalid) { - ABI = sparc::FloatABI::Hard; - } - - return ABI; -} - -static void getSparcTargetFeatures(const Driver &D, const ArgList &Args, - std::vector<StringRef> &Features) { - sparc::FloatABI FloatABI = sparc::getSparcFloatABI(D, Args); - if (FloatABI == sparc::FloatABI::Soft) - Features.push_back("+soft-float"); -} - -void Clang::AddSparcTargetArgs(const ArgList &Args, - ArgStringList &CmdArgs) const { - sparc::FloatABI FloatABI = - sparc::getSparcFloatABI(getToolChain().getDriver(), Args); - - if (FloatABI == sparc::FloatABI::Soft) { - // Floating point operations and argument passing are soft. - CmdArgs.push_back("-msoft-float"); - CmdArgs.push_back("-mfloat-abi"); - CmdArgs.push_back("soft"); - } else { - // Floating point operations and argument passing are hard. - assert(FloatABI == sparc::FloatABI::Hard && "Invalid float abi!"); - CmdArgs.push_back("-mfloat-abi"); - CmdArgs.push_back("hard"); - } -} - -void Clang::AddSystemZTargetArgs(const ArgList &Args, - ArgStringList &CmdArgs) const { - if (Args.hasFlag(options::OPT_mbackchain, options::OPT_mno_backchain, false)) - CmdArgs.push_back("-mbackchain"); -} - -static const char *getSystemZTargetCPU(const ArgList &Args) { - if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) - return A->getValue(); - return "z10"; -} - -static void getSystemZTargetFeatures(const ArgList &Args, - std::vector<StringRef> &Features) { - // -m(no-)htm overrides use of the transactional-execution facility. - if (Arg *A = Args.getLastArg(options::OPT_mhtm, options::OPT_mno_htm)) { - if (A->getOption().matches(options::OPT_mhtm)) - Features.push_back("+transactional-execution"); - else - Features.push_back("-transactional-execution"); - } - // -m(no-)vx overrides use of the vector facility. - if (Arg *A = Args.getLastArg(options::OPT_mvx, options::OPT_mno_vx)) { - if (A->getOption().matches(options::OPT_mvx)) - Features.push_back("+vector"); - else - Features.push_back("-vector"); - } -} - -static const char *getX86TargetCPU(const ArgList &Args, - const llvm::Triple &Triple) { - if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) { - if (StringRef(A->getValue()) != "native") { - if (Triple.isOSDarwin() && Triple.getArchName() == "x86_64h") - return "core-avx2"; - - return A->getValue(); - } - - // FIXME: Reject attempts to use -march=native unless the target matches - // the host. - // - // FIXME: We should also incorporate the detected target features for use - // with -native. - std::string CPU = llvm::sys::getHostCPUName(); - if (!CPU.empty() && CPU != "generic") - return Args.MakeArgString(CPU); - } - - if (const Arg *A = Args.getLastArg(options::OPT__SLASH_arch)) { - // Mapping built by referring to X86TargetInfo::getDefaultFeatures(). - StringRef Arch = A->getValue(); - const char *CPU; - if (Triple.getArch() == llvm::Triple::x86) { - CPU = llvm::StringSwitch<const char *>(Arch) - .Case("IA32", "i386") - .Case("SSE", "pentium3") - .Case("SSE2", "pentium4") - .Case("AVX", "sandybridge") - .Case("AVX2", "haswell") - .Default(nullptr); - } else { - CPU = llvm::StringSwitch<const char *>(Arch) - .Case("AVX", "sandybridge") - .Case("AVX2", "haswell") - .Default(nullptr); - } - if (CPU) - return CPU; - } - - // Select the default CPU if none was given (or detection failed). - - if (Triple.getArch() != llvm::Triple::x86_64 && - Triple.getArch() != llvm::Triple::x86) - return nullptr; // This routine is only handling x86 targets. - - bool Is64Bit = Triple.getArch() == llvm::Triple::x86_64; - - // FIXME: Need target hooks. - if (Triple.isOSDarwin()) { - if (Triple.getArchName() == "x86_64h") - return "core-avx2"; - // macosx10.12 drops support for all pre-Penryn Macs. - // Simulators can still run on 10.11 though, like Xcode. - if (Triple.isMacOSX() && !Triple.isOSVersionLT(10, 12)) - return "penryn"; - // The oldest x86_64 Macs have core2/Merom; the oldest x86 Macs have Yonah. - return Is64Bit ? "core2" : "yonah"; - } - - // Set up default CPU name for PS4 compilers. - if (Triple.isPS4CPU()) - return "btver2"; - - // On Android use targets compatible with gcc - if (Triple.isAndroid()) - return Is64Bit ? "x86-64" : "i686"; - - // Everything else goes to x86-64 in 64-bit mode. - if (Is64Bit) - return "x86-64"; - - switch (Triple.getOS()) { - case llvm::Triple::FreeBSD: - case llvm::Triple::NetBSD: - case llvm::Triple::OpenBSD: - return "i486"; - case llvm::Triple::Haiku: - return "i586"; - case llvm::Triple::Bitrig: - return "i686"; - default: - // Fallback to p4. - return "pentium4"; - } -} - -/// Get the (LLVM) name of the WebAssembly cpu we are targeting. -static StringRef getWebAssemblyTargetCPU(const ArgList &Args) { - // If we have -mcpu=, use that. - if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { - StringRef CPU = A->getValue(); - -#ifdef __wasm__ - // Handle "native" by examining the host. "native" isn't meaningful when - // cross compiling, so only support this when the host is also WebAssembly. - if (CPU == "native") - return llvm::sys::getHostCPUName(); -#endif - - return CPU; - } - - return "generic"; -} - -static std::string getCPUName(const ArgList &Args, const llvm::Triple &T, - bool FromAs = false) { - Arg *A; - - switch (T.getArch()) { - default: - return ""; - - case llvm::Triple::aarch64: - case llvm::Triple::aarch64_be: - return getAArch64TargetCPU(Args, A); - - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: { - StringRef MArch, MCPU; - getARMArchCPUFromArgs(Args, MArch, MCPU, FromAs); - return arm::getARMTargetCPU(MCPU, MArch, T); - } - case llvm::Triple::mips: - case llvm::Triple::mipsel: - case llvm::Triple::mips64: - case llvm::Triple::mips64el: { - StringRef CPUName; - StringRef ABIName; - mips::getMipsCPUAndABI(Args, T, CPUName, ABIName); - return CPUName; - } - - case llvm::Triple::nvptx: - case llvm::Triple::nvptx64: - if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) - return A->getValue(); - return ""; - - case llvm::Triple::ppc: - case llvm::Triple::ppc64: - case llvm::Triple::ppc64le: { - std::string TargetCPUName = getPPCTargetCPU(Args); - // LLVM may default to generating code for the native CPU, - // but, like gcc, we default to a more generic option for - // each architecture. (except on Darwin) - if (TargetCPUName.empty() && !T.isOSDarwin()) { - if (T.getArch() == llvm::Triple::ppc64) - TargetCPUName = "ppc64"; - else if (T.getArch() == llvm::Triple::ppc64le) - TargetCPUName = "ppc64le"; - else - TargetCPUName = "ppc"; - } - return TargetCPUName; - } - - case llvm::Triple::sparc: - case llvm::Triple::sparcel: - case llvm::Triple::sparcv9: - if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) - return A->getValue(); - return ""; - - case llvm::Triple::x86: - case llvm::Triple::x86_64: - return getX86TargetCPU(Args, T); - - case llvm::Triple::hexagon: - return "hexagon" + - toolchains::HexagonToolChain::GetTargetCPUVersion(Args).str(); - - case llvm::Triple::lanai: - return getLanaiTargetCPU(Args); - - case llvm::Triple::systemz: - return getSystemZTargetCPU(Args); - - case llvm::Triple::r600: - case llvm::Triple::amdgcn: - return getR600TargetGPU(Args); - - case llvm::Triple::wasm32: - case llvm::Triple::wasm64: - return getWebAssemblyTargetCPU(Args); - } -} - -static unsigned getLTOParallelism(const ArgList &Args, const Driver &D) { - unsigned Parallelism = 0; - Arg *LtoJobsArg = Args.getLastArg(options::OPT_flto_jobs_EQ); - if (LtoJobsArg && - StringRef(LtoJobsArg->getValue()).getAsInteger(10, Parallelism)) - D.Diag(diag::err_drv_invalid_int_value) << LtoJobsArg->getAsString(Args) - << LtoJobsArg->getValue(); - return Parallelism; -} - -// CloudABI and WebAssembly use -ffunction-sections and -fdata-sections by -// default. -static bool isUseSeparateSections(const llvm::Triple &Triple) { - return Triple.getOS() == llvm::Triple::CloudABI || - Triple.getArch() == llvm::Triple::wasm32 || - Triple.getArch() == llvm::Triple::wasm64; -} - -static void AddGoldPlugin(const ToolChain &ToolChain, const ArgList &Args, - ArgStringList &CmdArgs, bool IsThinLTO, - const Driver &D) { - // Tell the linker to load the plugin. This has to come before AddLinkerInputs - // as gold requires -plugin to come before any -plugin-opt that -Wl might - // forward. - CmdArgs.push_back("-plugin"); - std::string Plugin = - ToolChain.getDriver().Dir + "/../lib" CLANG_LIBDIR_SUFFIX "/LLVMgold.so"; - CmdArgs.push_back(Args.MakeArgString(Plugin)); - - // Try to pass driver level flags relevant to LTO code generation down to - // the plugin. - - // Handle flags for selecting CPU variants. - std::string CPU = getCPUName(Args, ToolChain.getTriple()); - if (!CPU.empty()) - CmdArgs.push_back(Args.MakeArgString(Twine("-plugin-opt=mcpu=") + CPU)); - - if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { - StringRef OOpt; - if (A->getOption().matches(options::OPT_O4) || - A->getOption().matches(options::OPT_Ofast)) - OOpt = "3"; - else if (A->getOption().matches(options::OPT_O)) - OOpt = A->getValue(); - else if (A->getOption().matches(options::OPT_O0)) - OOpt = "0"; - if (!OOpt.empty()) - CmdArgs.push_back(Args.MakeArgString(Twine("-plugin-opt=O") + OOpt)); - } - - if (IsThinLTO) - CmdArgs.push_back("-plugin-opt=thinlto"); - - if (unsigned Parallelism = getLTOParallelism(Args, D)) - CmdArgs.push_back(Args.MakeArgString(Twine("-plugin-opt=jobs=") + - llvm::to_string(Parallelism))); - - // If an explicit debugger tuning argument appeared, pass it along. - if (Arg *A = Args.getLastArg(options::OPT_gTune_Group, - options::OPT_ggdbN_Group)) { - if (A->getOption().matches(options::OPT_glldb)) - CmdArgs.push_back("-plugin-opt=-debugger-tune=lldb"); - else if (A->getOption().matches(options::OPT_gsce)) - CmdArgs.push_back("-plugin-opt=-debugger-tune=sce"); - else - CmdArgs.push_back("-plugin-opt=-debugger-tune=gdb"); - } - - bool UseSeparateSections = - isUseSeparateSections(ToolChain.getEffectiveTriple()); - - if (Args.hasFlag(options::OPT_ffunction_sections, - options::OPT_fno_function_sections, UseSeparateSections)) { - CmdArgs.push_back("-plugin-opt=-function-sections"); - } - - if (Args.hasFlag(options::OPT_fdata_sections, options::OPT_fno_data_sections, - UseSeparateSections)) { - CmdArgs.push_back("-plugin-opt=-data-sections"); - } - - if (Arg *A = Args.getLastArg(options::OPT_fprofile_sample_use_EQ)) { - StringRef FName = A->getValue(); - if (!llvm::sys::fs::exists(FName)) - D.Diag(diag::err_drv_no_such_file) << FName; - else - CmdArgs.push_back( - Args.MakeArgString(Twine("-plugin-opt=sample-profile=") + FName)); - } -} - -/// This is a helper function for validating the optional refinement step -/// parameter in reciprocal argument strings. Return false if there is an error -/// parsing the refinement step. Otherwise, return true and set the Position -/// of the refinement step in the input string. -static bool getRefinementStep(StringRef In, const Driver &D, - const Arg &A, size_t &Position) { - const char RefinementStepToken = ':'; - Position = In.find(RefinementStepToken); - if (Position != StringRef::npos) { - StringRef Option = A.getOption().getName(); - StringRef RefStep = In.substr(Position + 1); - // Allow exactly one numeric character for the additional refinement - // step parameter. This is reasonable for all currently-supported - // operations and architectures because we would expect that a larger value - // of refinement steps would cause the estimate "optimization" to - // under-perform the native operation. Also, if the estimate does not - // converge quickly, it probably will not ever converge, so further - // refinement steps will not produce a better answer. - if (RefStep.size() != 1) { - D.Diag(diag::err_drv_invalid_value) << Option << RefStep; - return false; - } - char RefStepChar = RefStep[0]; - if (RefStepChar < '0' || RefStepChar > '9') { - D.Diag(diag::err_drv_invalid_value) << Option << RefStep; - return false; - } - } - return true; -} - -/// The -mrecip flag requires processing of many optional parameters. -static void ParseMRecip(const Driver &D, const ArgList &Args, - ArgStringList &OutStrings) { - StringRef DisabledPrefixIn = "!"; - StringRef DisabledPrefixOut = "!"; - StringRef EnabledPrefixOut = ""; - StringRef Out = "-mrecip="; - - Arg *A = Args.getLastArg(options::OPT_mrecip, options::OPT_mrecip_EQ); - if (!A) - return; - - unsigned NumOptions = A->getNumValues(); - if (NumOptions == 0) { - // No option is the same as "all". - OutStrings.push_back(Args.MakeArgString(Out + "all")); - return; - } - - // Pass through "all", "none", or "default" with an optional refinement step. - if (NumOptions == 1) { - StringRef Val = A->getValue(0); - size_t RefStepLoc; - if (!getRefinementStep(Val, D, *A, RefStepLoc)) - return; - StringRef ValBase = Val.slice(0, RefStepLoc); - if (ValBase == "all" || ValBase == "none" || ValBase == "default") { - OutStrings.push_back(Args.MakeArgString(Out + Val)); - return; - } - } - - // Each reciprocal type may be enabled or disabled individually. - // Check each input value for validity, concatenate them all back together, - // and pass through. - - llvm::StringMap<bool> OptionStrings; - OptionStrings.insert(std::make_pair("divd", false)); - OptionStrings.insert(std::make_pair("divf", false)); - OptionStrings.insert(std::make_pair("vec-divd", false)); - OptionStrings.insert(std::make_pair("vec-divf", false)); - OptionStrings.insert(std::make_pair("sqrtd", false)); - OptionStrings.insert(std::make_pair("sqrtf", false)); - OptionStrings.insert(std::make_pair("vec-sqrtd", false)); - OptionStrings.insert(std::make_pair("vec-sqrtf", false)); - - for (unsigned i = 0; i != NumOptions; ++i) { - StringRef Val = A->getValue(i); - - bool IsDisabled = Val.startswith(DisabledPrefixIn); - // Ignore the disablement token for string matching. - if (IsDisabled) - Val = Val.substr(1); - - size_t RefStep; - if (!getRefinementStep(Val, D, *A, RefStep)) - return; - - StringRef ValBase = Val.slice(0, RefStep); - llvm::StringMap<bool>::iterator OptionIter = OptionStrings.find(ValBase); - if (OptionIter == OptionStrings.end()) { - // Try again specifying float suffix. - OptionIter = OptionStrings.find(ValBase.str() + 'f'); - if (OptionIter == OptionStrings.end()) { - // The input name did not match any known option string. - D.Diag(diag::err_drv_unknown_argument) << Val; - return; - } - // The option was specified without a float or double suffix. - // Make sure that the double entry was not already specified. - // The float entry will be checked below. - if (OptionStrings[ValBase.str() + 'd']) { - D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val; - return; - } - } - - if (OptionIter->second == true) { - // Duplicate option specified. - D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val; - return; - } - - // Mark the matched option as found. Do not allow duplicate specifiers. - OptionIter->second = true; - - // If the precision was not specified, also mark the double entry as found. - if (ValBase.back() != 'f' && ValBase.back() != 'd') - OptionStrings[ValBase.str() + 'd'] = true; - - // Build the output string. - StringRef Prefix = IsDisabled ? DisabledPrefixOut : EnabledPrefixOut; - Out = Args.MakeArgString(Out + Prefix + Val); - if (i != NumOptions - 1) - Out = Args.MakeArgString(Out + ","); - } - - OutStrings.push_back(Args.MakeArgString(Out)); -} - -static void getX86TargetFeatures(const Driver &D, const llvm::Triple &Triple, - const ArgList &Args, - std::vector<StringRef> &Features) { - // If -march=native, autodetect the feature list. - if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) { - if (StringRef(A->getValue()) == "native") { - llvm::StringMap<bool> HostFeatures; - if (llvm::sys::getHostCPUFeatures(HostFeatures)) - for (auto &F : HostFeatures) - Features.push_back( - Args.MakeArgString((F.second ? "+" : "-") + F.first())); - } - } - - if (Triple.getArchName() == "x86_64h") { - // x86_64h implies quite a few of the more modern subtarget features - // for Haswell class CPUs, but not all of them. Opt-out of a few. - Features.push_back("-rdrnd"); - Features.push_back("-aes"); - Features.push_back("-pclmul"); - Features.push_back("-rtm"); - Features.push_back("-hle"); - Features.push_back("-fsgsbase"); - } - - const llvm::Triple::ArchType ArchType = Triple.getArch(); - // Add features to be compatible with gcc for Android. - if (Triple.isAndroid()) { - if (ArchType == llvm::Triple::x86_64) { - Features.push_back("+sse4.2"); - Features.push_back("+popcnt"); - } else - Features.push_back("+ssse3"); - } - - // Set features according to the -arch flag on MSVC. - if (Arg *A = Args.getLastArg(options::OPT__SLASH_arch)) { - StringRef Arch = A->getValue(); - bool ArchUsed = false; - // First, look for flags that are shared in x86 and x86-64. - if (ArchType == llvm::Triple::x86_64 || ArchType == llvm::Triple::x86) { - if (Arch == "AVX" || Arch == "AVX2") { - ArchUsed = true; - Features.push_back(Args.MakeArgString("+" + Arch.lower())); - } - } - // Then, look for x86-specific flags. - if (ArchType == llvm::Triple::x86) { - if (Arch == "IA32") { - ArchUsed = true; - } else if (Arch == "SSE" || Arch == "SSE2") { - ArchUsed = true; - Features.push_back(Args.MakeArgString("+" + Arch.lower())); - } - } - if (!ArchUsed) - D.Diag(clang::diag::warn_drv_unused_argument) << A->getAsString(Args); - } - - // Now add any that the user explicitly requested on the command line, - // which may override the defaults. - handleTargetFeaturesGroup(Args, Features, options::OPT_m_x86_Features_Group); -} - -void Clang::AddX86TargetArgs(const ArgList &Args, - ArgStringList &CmdArgs) const { - if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) || - Args.hasArg(options::OPT_mkernel) || - Args.hasArg(options::OPT_fapple_kext)) - CmdArgs.push_back("-disable-red-zone"); - - // Default to avoid implicit floating-point for kernel/kext code, but allow - // that to be overridden with -mno-soft-float. - bool NoImplicitFloat = (Args.hasArg(options::OPT_mkernel) || - Args.hasArg(options::OPT_fapple_kext)); - if (Arg *A = Args.getLastArg( - options::OPT_msoft_float, options::OPT_mno_soft_float, - options::OPT_mimplicit_float, options::OPT_mno_implicit_float)) { - const Option &O = A->getOption(); - NoImplicitFloat = (O.matches(options::OPT_mno_implicit_float) || - O.matches(options::OPT_msoft_float)); - } - if (NoImplicitFloat) - CmdArgs.push_back("-no-implicit-float"); - - if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) { - StringRef Value = A->getValue(); - if (Value == "intel" || Value == "att") { - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value)); - } else { - getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument) - << A->getOption().getName() << Value; - } - } - - // Set flags to support MCU ABI. - if (Args.hasFlag(options::OPT_miamcu, options::OPT_mno_iamcu, false)) { - CmdArgs.push_back("-mfloat-abi"); - CmdArgs.push_back("soft"); - CmdArgs.push_back("-mstack-alignment=4"); - } -} - -void Clang::AddHexagonTargetArgs(const ArgList &Args, - ArgStringList &CmdArgs) const { - CmdArgs.push_back("-mqdsp6-compat"); - CmdArgs.push_back("-Wreturn-type"); - - if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) { - std::string N = llvm::utostr(G.getValue()); - std::string Opt = std::string("-hexagon-small-data-threshold=") + N; - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back(Args.MakeArgString(Opt)); - } - - if (!Args.hasArg(options::OPT_fno_short_enums)) - CmdArgs.push_back("-fshort-enums"); - if (Args.getLastArg(options::OPT_mieee_rnd_near)) { - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back("-enable-hexagon-ieee-rnd-near"); - } - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back("-machine-sink-split=0"); -} - -void Clang::AddLanaiTargetArgs(const ArgList &Args, - ArgStringList &CmdArgs) const { - if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { - StringRef CPUName = A->getValue(); - - CmdArgs.push_back("-target-cpu"); - CmdArgs.push_back(Args.MakeArgString(CPUName)); - } - if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) { - StringRef Value = A->getValue(); - // Only support mregparm=4 to support old usage. Report error for all other - // cases. - int Mregparm; - if (Value.getAsInteger(10, Mregparm)) { - if (Mregparm != 4) { - getToolChain().getDriver().Diag( - diag::err_drv_unsupported_option_argument) - << A->getOption().getName() << Value; - } - } - } -} - -void Clang::AddWebAssemblyTargetArgs(const ArgList &Args, - ArgStringList &CmdArgs) const { - // Default to "hidden" visibility. - if (!Args.hasArg(options::OPT_fvisibility_EQ, - options::OPT_fvisibility_ms_compat)) { - CmdArgs.push_back("-fvisibility"); - CmdArgs.push_back("hidden"); - } -} - -// Decode AArch64 features from string like +[no]featureA+[no]featureB+... -static bool DecodeAArch64Features(const Driver &D, StringRef text, - std::vector<StringRef> &Features) { - SmallVector<StringRef, 8> Split; - text.split(Split, StringRef("+"), -1, false); - - for (StringRef Feature : Split) { - StringRef FeatureName = llvm::AArch64::getArchExtFeature(Feature); - if (!FeatureName.empty()) - Features.push_back(FeatureName); - else if (Feature == "neon" || Feature == "noneon") - D.Diag(diag::err_drv_no_neon_modifier); - else - return false; - } - return true; -} - -// Check if the CPU name and feature modifiers in -mcpu are legal. If yes, -// decode CPU and feature. -static bool DecodeAArch64Mcpu(const Driver &D, StringRef Mcpu, StringRef &CPU, - std::vector<StringRef> &Features) { - std::pair<StringRef, StringRef> Split = Mcpu.split("+"); - CPU = Split.first; - - if (CPU == "generic") { - Features.push_back("+neon"); - } else { - unsigned ArchKind = llvm::AArch64::parseCPUArch(CPU); - if (!llvm::AArch64::getArchFeatures(ArchKind, Features)) - return false; - - unsigned Extension = llvm::AArch64::getDefaultExtensions(CPU, ArchKind); - if (!llvm::AArch64::getExtensionFeatures(Extension, Features)) - return false; - } - - if (Split.second.size() && !DecodeAArch64Features(D, Split.second, Features)) - return false; - - return true; -} - -static bool -getAArch64ArchFeaturesFromMarch(const Driver &D, StringRef March, - const ArgList &Args, - std::vector<StringRef> &Features) { - std::string MarchLowerCase = March.lower(); - std::pair<StringRef, StringRef> Split = StringRef(MarchLowerCase).split("+"); - - unsigned ArchKind = llvm::AArch64::parseArch(Split.first); - if (ArchKind == static_cast<unsigned>(llvm::AArch64::ArchKind::AK_INVALID) || - !llvm::AArch64::getArchFeatures(ArchKind, Features) || - (Split.second.size() && !DecodeAArch64Features(D, Split.second, Features))) - return false; - - return true; -} - -static bool -getAArch64ArchFeaturesFromMcpu(const Driver &D, StringRef Mcpu, - const ArgList &Args, - std::vector<StringRef> &Features) { - StringRef CPU; - std::string McpuLowerCase = Mcpu.lower(); - if (!DecodeAArch64Mcpu(D, McpuLowerCase, CPU, Features)) - return false; - - return true; -} - -static bool -getAArch64MicroArchFeaturesFromMtune(const Driver &D, StringRef Mtune, - const ArgList &Args, - std::vector<StringRef> &Features) { - std::string MtuneLowerCase = Mtune.lower(); - // Handle CPU name is 'native'. - if (MtuneLowerCase == "native") - MtuneLowerCase = llvm::sys::getHostCPUName(); - if (MtuneLowerCase == "cyclone") { - Features.push_back("+zcm"); - Features.push_back("+zcz"); - } - return true; -} - -static bool -getAArch64MicroArchFeaturesFromMcpu(const Driver &D, StringRef Mcpu, - const ArgList &Args, - std::vector<StringRef> &Features) { - StringRef CPU; - std::vector<StringRef> DecodedFeature; - std::string McpuLowerCase = Mcpu.lower(); - if (!DecodeAArch64Mcpu(D, McpuLowerCase, CPU, DecodedFeature)) - return false; - - return getAArch64MicroArchFeaturesFromMtune(D, CPU, Args, Features); -} - -static void getAArch64TargetFeatures(const Driver &D, const ArgList &Args, - std::vector<StringRef> &Features) { - Arg *A; - bool success = true; - // Enable NEON by default. - Features.push_back("+neon"); - if ((A = Args.getLastArg(options::OPT_march_EQ))) - success = getAArch64ArchFeaturesFromMarch(D, A->getValue(), Args, Features); - else if ((A = Args.getLastArg(options::OPT_mcpu_EQ))) - success = getAArch64ArchFeaturesFromMcpu(D, A->getValue(), Args, Features); - else if (Args.hasArg(options::OPT_arch)) - success = getAArch64ArchFeaturesFromMcpu(D, getAArch64TargetCPU(Args, A), - Args, Features); - - if (success && (A = Args.getLastArg(options::OPT_mtune_EQ))) - success = - getAArch64MicroArchFeaturesFromMtune(D, A->getValue(), Args, Features); - else if (success && (A = Args.getLastArg(options::OPT_mcpu_EQ))) - success = - getAArch64MicroArchFeaturesFromMcpu(D, A->getValue(), Args, Features); - else if (success && Args.hasArg(options::OPT_arch)) - success = getAArch64MicroArchFeaturesFromMcpu( - D, getAArch64TargetCPU(Args, A), Args, Features); - - if (!success) - D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); - - if (Args.getLastArg(options::OPT_mgeneral_regs_only)) { - Features.push_back("-fp-armv8"); - Features.push_back("-crypto"); - Features.push_back("-neon"); - } - - // En/disable crc - if (Arg *A = Args.getLastArg(options::OPT_mcrc, options::OPT_mnocrc)) { - if (A->getOption().matches(options::OPT_mcrc)) - Features.push_back("+crc"); - else - Features.push_back("-crc"); - } - - if (Arg *A = Args.getLastArg(options::OPT_mno_unaligned_access, - options::OPT_munaligned_access)) - if (A->getOption().matches(options::OPT_mno_unaligned_access)) - Features.push_back("+strict-align"); - - if (Args.hasArg(options::OPT_ffixed_x18)) - Features.push_back("+reserve-x18"); -} - -static void getHexagonTargetFeatures(const ArgList &Args, - std::vector<StringRef> &Features) { - handleTargetFeaturesGroup(Args, Features, - options::OPT_m_hexagon_Features_Group); - - bool UseLongCalls = false; - if (Arg *A = Args.getLastArg(options::OPT_mlong_calls, - options::OPT_mno_long_calls)) { - if (A->getOption().matches(options::OPT_mlong_calls)) - UseLongCalls = true; - } - - Features.push_back(UseLongCalls ? "+long-calls" : "-long-calls"); -} - -static void getWebAssemblyTargetFeatures(const ArgList &Args, - std::vector<StringRef> &Features) { - handleTargetFeaturesGroup(Args, Features, options::OPT_m_wasm_Features_Group); -} - -static void getAMDGPUTargetFeatures(const Driver &D, const ArgList &Args, - std::vector<StringRef> &Features) { - if (const Arg *dAbi = Args.getLastArg(options::OPT_mamdgpu_debugger_abi)) { - StringRef value = dAbi->getValue(); - if (value == "1.0") { - Features.push_back("+amdgpu-debugger-insert-nops"); - Features.push_back("+amdgpu-debugger-reserve-regs"); - Features.push_back("+amdgpu-debugger-emit-prologue"); - } else { - D.Diag(diag::err_drv_clang_unsupported) << dAbi->getAsString(Args); - } - } - - handleTargetFeaturesGroup( - Args, Features, options::OPT_m_amdgpu_Features_Group); -} - -static void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple, - const ArgList &Args, ArgStringList &CmdArgs, - bool ForAS) { - const Driver &D = TC.getDriver(); - std::vector<StringRef> Features; - switch (Triple.getArch()) { - default: - break; - case llvm::Triple::mips: - case llvm::Triple::mipsel: - case llvm::Triple::mips64: - case llvm::Triple::mips64el: - getMIPSTargetFeatures(D, Triple, Args, Features); - break; - - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: - getARMTargetFeatures(TC, Triple, Args, CmdArgs, Features, ForAS); - break; - - case llvm::Triple::ppc: - case llvm::Triple::ppc64: - case llvm::Triple::ppc64le: - getPPCTargetFeatures(D, Triple, Args, Features); - break; - case llvm::Triple::systemz: - getSystemZTargetFeatures(Args, Features); - break; - case llvm::Triple::aarch64: - case llvm::Triple::aarch64_be: - getAArch64TargetFeatures(D, Args, Features); - break; - case llvm::Triple::x86: - case llvm::Triple::x86_64: - getX86TargetFeatures(D, Triple, Args, Features); - break; - case llvm::Triple::hexagon: - getHexagonTargetFeatures(Args, Features); - break; - case llvm::Triple::wasm32: - case llvm::Triple::wasm64: - getWebAssemblyTargetFeatures(Args, Features); - break; - case llvm::Triple::sparc: - case llvm::Triple::sparcel: - case llvm::Triple::sparcv9: - getSparcTargetFeatures(D, Args, Features); - break; - case llvm::Triple::r600: - case llvm::Triple::amdgcn: - getAMDGPUTargetFeatures(D, Args, Features); - break; - } - - // Find the last of each feature. - llvm::StringMap<unsigned> LastOpt; - for (unsigned I = 0, N = Features.size(); I < N; ++I) { - StringRef Name = Features[I]; - assert(Name[0] == '-' || Name[0] == '+'); - LastOpt[Name.drop_front(1)] = I; - } - - for (unsigned I = 0, N = Features.size(); I < N; ++I) { - // If this feature was overridden, ignore it. - StringRef Name = Features[I]; - llvm::StringMap<unsigned>::iterator LastI = LastOpt.find(Name.drop_front(1)); - assert(LastI != LastOpt.end()); - unsigned Last = LastI->second; - if (Last != I) - continue; - - CmdArgs.push_back("-target-feature"); - CmdArgs.push_back(Name.data()); - } -} - -static bool -shouldUseExceptionTablesForObjCExceptions(const ObjCRuntime &runtime, - const llvm::Triple &Triple) { - // We use the zero-cost exception tables for Objective-C if the non-fragile - // ABI is enabled or when compiling for x86_64 and ARM on Snow Leopard and - // later. - if (runtime.isNonFragile()) - return true; - - if (!Triple.isMacOSX()) - return false; - - return (!Triple.isMacOSXVersionLT(10, 5) && - (Triple.getArch() == llvm::Triple::x86_64 || - Triple.getArch() == llvm::Triple::arm)); -} - -/// Adds exception related arguments to the driver command arguments. There's a -/// master flag, -fexceptions and also language specific flags to enable/disable -/// C++ and Objective-C exceptions. This makes it possible to for example -/// disable C++ exceptions but enable Objective-C exceptions. -static void addExceptionArgs(const ArgList &Args, types::ID InputType, - const ToolChain &TC, bool KernelOrKext, - const ObjCRuntime &objcRuntime, - ArgStringList &CmdArgs) { - const Driver &D = TC.getDriver(); - const llvm::Triple &Triple = TC.getTriple(); - - if (KernelOrKext) { - // -mkernel and -fapple-kext imply no exceptions, so claim exception related - // arguments now to avoid warnings about unused arguments. - Args.ClaimAllArgs(options::OPT_fexceptions); - Args.ClaimAllArgs(options::OPT_fno_exceptions); - Args.ClaimAllArgs(options::OPT_fobjc_exceptions); - Args.ClaimAllArgs(options::OPT_fno_objc_exceptions); - Args.ClaimAllArgs(options::OPT_fcxx_exceptions); - Args.ClaimAllArgs(options::OPT_fno_cxx_exceptions); - return; - } - - // See if the user explicitly enabled exceptions. - bool EH = Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions, - false); - - // Obj-C exceptions are enabled by default, regardless of -fexceptions. This - // is not necessarily sensible, but follows GCC. - if (types::isObjC(InputType) && - Args.hasFlag(options::OPT_fobjc_exceptions, - options::OPT_fno_objc_exceptions, true)) { - CmdArgs.push_back("-fobjc-exceptions"); - - EH |= shouldUseExceptionTablesForObjCExceptions(objcRuntime, Triple); - } - - if (types::isCXX(InputType)) { - // Disable C++ EH by default on XCore and PS4. - bool CXXExceptionsEnabled = - Triple.getArch() != llvm::Triple::xcore && !Triple.isPS4CPU(); - Arg *ExceptionArg = Args.getLastArg( - options::OPT_fcxx_exceptions, options::OPT_fno_cxx_exceptions, - options::OPT_fexceptions, options::OPT_fno_exceptions); - if (ExceptionArg) - CXXExceptionsEnabled = - ExceptionArg->getOption().matches(options::OPT_fcxx_exceptions) || - ExceptionArg->getOption().matches(options::OPT_fexceptions); - - if (CXXExceptionsEnabled) { - if (Triple.isPS4CPU()) { - ToolChain::RTTIMode RTTIMode = TC.getRTTIMode(); - assert(ExceptionArg && - "On the PS4 exceptions should only be enabled if passing " - "an argument"); - if (RTTIMode == ToolChain::RM_DisabledExplicitly) { - const Arg *RTTIArg = TC.getRTTIArg(); - assert(RTTIArg && "RTTI disabled explicitly but no RTTIArg!"); - D.Diag(diag::err_drv_argument_not_allowed_with) - << RTTIArg->getAsString(Args) << ExceptionArg->getAsString(Args); - } else if (RTTIMode == ToolChain::RM_EnabledImplicitly) - D.Diag(diag::warn_drv_enabling_rtti_with_exceptions); - } else - assert(TC.getRTTIMode() != ToolChain::RM_DisabledImplicitly); - - CmdArgs.push_back("-fcxx-exceptions"); - - EH = true; - } - } - - if (EH) - CmdArgs.push_back("-fexceptions"); -} - -static bool ShouldDisableAutolink(const ArgList &Args, const ToolChain &TC) { - bool Default = true; - if (TC.getTriple().isOSDarwin()) { - // The native darwin assembler doesn't support the linker_option directives, - // so we disable them if we think the .s file will be passed to it. - Default = TC.useIntegratedAs(); - } - return !Args.hasFlag(options::OPT_fautolink, options::OPT_fno_autolink, - Default); -} - -static bool ShouldDisableDwarfDirectory(const ArgList &Args, - const ToolChain &TC) { - bool UseDwarfDirectory = - Args.hasFlag(options::OPT_fdwarf_directory_asm, - options::OPT_fno_dwarf_directory_asm, TC.useIntegratedAs()); - return !UseDwarfDirectory; -} - -/// \brief Check whether the given input tree contains any compilation actions. -static bool ContainsCompileAction(const Action *A) { - if (isa<CompileJobAction>(A) || isa<BackendJobAction>(A)) - return true; - - for (const auto &AI : A->inputs()) - if (ContainsCompileAction(AI)) - return true; - - return false; -} - -/// \brief Check if -relax-all should be passed to the internal assembler. -/// This is done by default when compiling non-assembler source with -O0. -static bool UseRelaxAll(Compilation &C, const ArgList &Args) { - bool RelaxDefault = true; - - if (Arg *A = Args.getLastArg(options::OPT_O_Group)) - RelaxDefault = A->getOption().matches(options::OPT_O0); - - if (RelaxDefault) { - RelaxDefault = false; - for (const auto &Act : C.getActions()) { - if (ContainsCompileAction(Act)) { - RelaxDefault = true; - break; - } - } - } - - return Args.hasFlag(options::OPT_mrelax_all, options::OPT_mno_relax_all, - RelaxDefault); -} - -// Convert an arg of the form "-gN" or "-ggdbN" or one of their aliases -// to the corresponding DebugInfoKind. -static codegenoptions::DebugInfoKind DebugLevelToInfoKind(const Arg &A) { - assert(A.getOption().matches(options::OPT_gN_Group) && - "Not a -g option that specifies a debug-info level"); - if (A.getOption().matches(options::OPT_g0) || - A.getOption().matches(options::OPT_ggdb0)) - return codegenoptions::NoDebugInfo; - if (A.getOption().matches(options::OPT_gline_tables_only) || - A.getOption().matches(options::OPT_ggdb1)) - return codegenoptions::DebugLineTablesOnly; - return codegenoptions::LimitedDebugInfo; -} - -// Extract the integer N from a string spelled "-dwarf-N", returning 0 -// on mismatch. The StringRef input (rather than an Arg) allows -// for use by the "-Xassembler" option parser. -static unsigned DwarfVersionNum(StringRef ArgValue) { - return llvm::StringSwitch<unsigned>(ArgValue) - .Case("-gdwarf-2", 2) - .Case("-gdwarf-3", 3) - .Case("-gdwarf-4", 4) - .Case("-gdwarf-5", 5) - .Default(0); -} - -static void RenderDebugEnablingArgs(const ArgList &Args, ArgStringList &CmdArgs, - codegenoptions::DebugInfoKind DebugInfoKind, - unsigned DwarfVersion, - llvm::DebuggerKind DebuggerTuning) { - switch (DebugInfoKind) { - case codegenoptions::DebugLineTablesOnly: - CmdArgs.push_back("-debug-info-kind=line-tables-only"); - break; - case codegenoptions::LimitedDebugInfo: - CmdArgs.push_back("-debug-info-kind=limited"); - break; - case codegenoptions::FullDebugInfo: - CmdArgs.push_back("-debug-info-kind=standalone"); - break; - default: - break; - } - if (DwarfVersion > 0) - CmdArgs.push_back( - Args.MakeArgString("-dwarf-version=" + Twine(DwarfVersion))); - switch (DebuggerTuning) { - case llvm::DebuggerKind::GDB: - CmdArgs.push_back("-debugger-tuning=gdb"); - break; - case llvm::DebuggerKind::LLDB: - CmdArgs.push_back("-debugger-tuning=lldb"); - break; - case llvm::DebuggerKind::SCE: - CmdArgs.push_back("-debugger-tuning=sce"); - break; - default: - break; - } -} - -static void CollectArgsForIntegratedAssembler(Compilation &C, - const ArgList &Args, - ArgStringList &CmdArgs, - const Driver &D) { - if (UseRelaxAll(C, Args)) - CmdArgs.push_back("-mrelax-all"); - - // Only default to -mincremental-linker-compatible if we think we are - // targeting the MSVC linker. - bool DefaultIncrementalLinkerCompatible = - C.getDefaultToolChain().getTriple().isWindowsMSVCEnvironment(); - if (Args.hasFlag(options::OPT_mincremental_linker_compatible, - options::OPT_mno_incremental_linker_compatible, - DefaultIncrementalLinkerCompatible)) - CmdArgs.push_back("-mincremental-linker-compatible"); - - switch (C.getDefaultToolChain().getArch()) { - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: - if (Arg *A = Args.getLastArg(options::OPT_mimplicit_it_EQ)) { - StringRef Value = A->getValue(); - if (Value == "always" || Value == "never" || Value == "arm" || - Value == "thumb") { - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back(Args.MakeArgString("-arm-implicit-it=" + Value)); - } else { - D.Diag(diag::err_drv_unsupported_option_argument) - << A->getOption().getName() << Value; - } - } - break; - default: - break; - } - - // When passing -I arguments to the assembler we sometimes need to - // unconditionally take the next argument. For example, when parsing - // '-Wa,-I -Wa,foo' we need to accept the -Wa,foo arg after seeing the - // -Wa,-I arg and when parsing '-Wa,-I,foo' we need to accept the 'foo' - // arg after parsing the '-I' arg. - bool TakeNextArg = false; - - // When using an integrated assembler, translate -Wa, and -Xassembler - // options. - bool CompressDebugSections = false; - - bool UseRelaxRelocations = ENABLE_X86_RELAX_RELOCATIONS; - const char *MipsTargetFeature = nullptr; - for (const Arg *A : - Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) { - A->claim(); - - for (StringRef Value : A->getValues()) { - if (TakeNextArg) { - CmdArgs.push_back(Value.data()); - TakeNextArg = false; - continue; - } - - if (C.getDefaultToolChain().getTriple().isOSBinFormatCOFF() && - Value == "-mbig-obj") - continue; // LLVM handles bigobj automatically - - switch (C.getDefaultToolChain().getArch()) { - default: - break; - case llvm::Triple::mips: - case llvm::Triple::mipsel: - case llvm::Triple::mips64: - case llvm::Triple::mips64el: - if (Value == "--trap") { - CmdArgs.push_back("-target-feature"); - CmdArgs.push_back("+use-tcc-in-div"); - continue; - } - if (Value == "--break") { - CmdArgs.push_back("-target-feature"); - CmdArgs.push_back("-use-tcc-in-div"); - continue; - } - if (Value.startswith("-msoft-float")) { - CmdArgs.push_back("-target-feature"); - CmdArgs.push_back("+soft-float"); - continue; - } - if (Value.startswith("-mhard-float")) { - CmdArgs.push_back("-target-feature"); - CmdArgs.push_back("-soft-float"); - continue; - } - - MipsTargetFeature = llvm::StringSwitch<const char *>(Value) - .Case("-mips1", "+mips1") - .Case("-mips2", "+mips2") - .Case("-mips3", "+mips3") - .Case("-mips4", "+mips4") - .Case("-mips5", "+mips5") - .Case("-mips32", "+mips32") - .Case("-mips32r2", "+mips32r2") - .Case("-mips32r3", "+mips32r3") - .Case("-mips32r5", "+mips32r5") - .Case("-mips32r6", "+mips32r6") - .Case("-mips64", "+mips64") - .Case("-mips64r2", "+mips64r2") - .Case("-mips64r3", "+mips64r3") - .Case("-mips64r5", "+mips64r5") - .Case("-mips64r6", "+mips64r6") - .Default(nullptr); - if (MipsTargetFeature) - continue; - } - - if (Value == "-force_cpusubtype_ALL") { - // Do nothing, this is the default and we don't support anything else. - } else if (Value == "-L") { - CmdArgs.push_back("-msave-temp-labels"); - } else if (Value == "--fatal-warnings") { - CmdArgs.push_back("-massembler-fatal-warnings"); - } else if (Value == "--noexecstack") { - CmdArgs.push_back("-mnoexecstack"); - } else if (Value == "-compress-debug-sections" || - Value == "--compress-debug-sections") { - CompressDebugSections = true; - } else if (Value == "-nocompress-debug-sections" || - Value == "--nocompress-debug-sections") { - CompressDebugSections = false; - } else if (Value == "-mrelax-relocations=yes" || - Value == "--mrelax-relocations=yes") { - UseRelaxRelocations = true; - } else if (Value == "-mrelax-relocations=no" || - Value == "--mrelax-relocations=no") { - UseRelaxRelocations = false; - } else if (Value.startswith("-I")) { - CmdArgs.push_back(Value.data()); - // We need to consume the next argument if the current arg is a plain - // -I. The next arg will be the include directory. - if (Value == "-I") - TakeNextArg = true; - } else if (Value.startswith("-gdwarf-")) { - // "-gdwarf-N" options are not cc1as options. - unsigned DwarfVersion = DwarfVersionNum(Value); - if (DwarfVersion == 0) { // Send it onward, and let cc1as complain. - CmdArgs.push_back(Value.data()); - } else { - RenderDebugEnablingArgs(Args, CmdArgs, - codegenoptions::LimitedDebugInfo, - DwarfVersion, llvm::DebuggerKind::Default); - } - } else if (Value.startswith("-mcpu") || Value.startswith("-mfpu") || - Value.startswith("-mhwdiv") || Value.startswith("-march")) { - // Do nothing, we'll validate it later. - } else if (Value == "-defsym") { - if (A->getNumValues() != 2) { - D.Diag(diag::err_drv_defsym_invalid_format) << Value; - break; - } - const char *S = A->getValue(1); - auto Pair = StringRef(S).split('='); - auto Sym = Pair.first; - auto SVal = Pair.second; - - if (Sym.empty() || SVal.empty()) { - D.Diag(diag::err_drv_defsym_invalid_format) << S; - break; - } - int64_t IVal; - if (SVal.getAsInteger(0, IVal)) { - D.Diag(diag::err_drv_defsym_invalid_symval) << SVal; - break; - } - CmdArgs.push_back(Value.data()); - TakeNextArg = true; - } else { - D.Diag(diag::err_drv_unsupported_option_argument) - << A->getOption().getName() << Value; - } - } - } - if (CompressDebugSections) { - if (llvm::zlib::isAvailable()) - CmdArgs.push_back("-compress-debug-sections"); - else - D.Diag(diag::warn_debug_compression_unavailable); - } - if (UseRelaxRelocations) - CmdArgs.push_back("--mrelax-relocations"); - if (MipsTargetFeature != nullptr) { - CmdArgs.push_back("-target-feature"); - CmdArgs.push_back(MipsTargetFeature); - } -} - -// This adds the static libclang_rt.builtins-arch.a directly to the command line -// FIXME: Make sure we can also emit shared objects if they're requested -// and available, check for possible errors, etc. -static void addClangRT(const ToolChain &TC, const ArgList &Args, - ArgStringList &CmdArgs) { - CmdArgs.push_back(TC.getCompilerRTArgString(Args, "builtins")); -} - -static void addOpenMPRuntime(ArgStringList &CmdArgs, const ToolChain &TC, - const ArgList &Args) { - if (!Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, - options::OPT_fno_openmp, false)) - return; - - switch (TC.getDriver().getOpenMPRuntime(Args)) { - case Driver::OMPRT_OMP: - CmdArgs.push_back("-lomp"); - break; - case Driver::OMPRT_GOMP: - CmdArgs.push_back("-lgomp"); - break; - case Driver::OMPRT_IOMP5: - CmdArgs.push_back("-liomp5"); - break; - case Driver::OMPRT_Unknown: - // Already diagnosed. - break; - } -} - -static void addSanitizerRuntime(const ToolChain &TC, const ArgList &Args, - ArgStringList &CmdArgs, StringRef Sanitizer, - bool IsShared, bool IsWhole) { - // Wrap any static runtimes that must be forced into executable in - // whole-archive. - if (IsWhole) CmdArgs.push_back("-whole-archive"); - CmdArgs.push_back(TC.getCompilerRTArgString(Args, Sanitizer, IsShared)); - if (IsWhole) CmdArgs.push_back("-no-whole-archive"); -} - -// Tries to use a file with the list of dynamic symbols that need to be exported -// from the runtime library. Returns true if the file was found. -static bool addSanitizerDynamicList(const ToolChain &TC, const ArgList &Args, - ArgStringList &CmdArgs, - StringRef Sanitizer) { - SmallString<128> SanRT(TC.getCompilerRT(Args, Sanitizer)); - if (llvm::sys::fs::exists(SanRT + ".syms")) { - CmdArgs.push_back(Args.MakeArgString("--dynamic-list=" + SanRT + ".syms")); - return true; - } - return false; -} - -static void linkSanitizerRuntimeDeps(const ToolChain &TC, - ArgStringList &CmdArgs) { - // Force linking against the system libraries sanitizers depends on - // (see PR15823 why this is necessary). - CmdArgs.push_back("--no-as-needed"); - // There's no libpthread or librt on RTEMS. - if (TC.getTriple().getOS() != llvm::Triple::RTEMS) { - CmdArgs.push_back("-lpthread"); - CmdArgs.push_back("-lrt"); - } - CmdArgs.push_back("-lm"); - // There's no libdl on FreeBSD or RTEMS. - if (TC.getTriple().getOS() != llvm::Triple::FreeBSD && - TC.getTriple().getOS() != llvm::Triple::RTEMS) - CmdArgs.push_back("-ldl"); -} - -static void -collectSanitizerRuntimes(const ToolChain &TC, const ArgList &Args, - SmallVectorImpl<StringRef> &SharedRuntimes, - SmallVectorImpl<StringRef> &StaticRuntimes, - SmallVectorImpl<StringRef> &NonWholeStaticRuntimes, - SmallVectorImpl<StringRef> &HelperStaticRuntimes, - SmallVectorImpl<StringRef> &RequiredSymbols) { - const SanitizerArgs &SanArgs = TC.getSanitizerArgs(); - // Collect shared runtimes. - if (SanArgs.needsAsanRt() && SanArgs.needsSharedAsanRt()) { - SharedRuntimes.push_back("asan"); - } - // The stats_client library is also statically linked into DSOs. - if (SanArgs.needsStatsRt()) - StaticRuntimes.push_back("stats_client"); - - // Collect static runtimes. - if (Args.hasArg(options::OPT_shared) || TC.getTriple().isAndroid()) { - // Don't link static runtimes into DSOs or if compiling for Android. - return; - } - if (SanArgs.needsAsanRt()) { - if (SanArgs.needsSharedAsanRt()) { - HelperStaticRuntimes.push_back("asan-preinit"); - } else { - StaticRuntimes.push_back("asan"); - if (SanArgs.linkCXXRuntimes()) - StaticRuntimes.push_back("asan_cxx"); - } - } - if (SanArgs.needsDfsanRt()) - StaticRuntimes.push_back("dfsan"); - if (SanArgs.needsLsanRt()) - StaticRuntimes.push_back("lsan"); - if (SanArgs.needsMsanRt()) { - StaticRuntimes.push_back("msan"); - if (SanArgs.linkCXXRuntimes()) - StaticRuntimes.push_back("msan_cxx"); - } - if (SanArgs.needsTsanRt()) { - StaticRuntimes.push_back("tsan"); - if (SanArgs.linkCXXRuntimes()) - StaticRuntimes.push_back("tsan_cxx"); - } - if (SanArgs.needsUbsanRt()) { - StaticRuntimes.push_back("ubsan_standalone"); - if (SanArgs.linkCXXRuntimes()) - StaticRuntimes.push_back("ubsan_standalone_cxx"); - } - if (SanArgs.needsSafeStackRt()) - StaticRuntimes.push_back("safestack"); - if (SanArgs.needsCfiRt()) - StaticRuntimes.push_back("cfi"); - if (SanArgs.needsCfiDiagRt()) { - StaticRuntimes.push_back("cfi_diag"); - if (SanArgs.linkCXXRuntimes()) - StaticRuntimes.push_back("ubsan_standalone_cxx"); - } - if (SanArgs.needsStatsRt()) { - NonWholeStaticRuntimes.push_back("stats"); - RequiredSymbols.push_back("__sanitizer_stats_register"); - } - if (SanArgs.needsEsanRt()) - StaticRuntimes.push_back("esan"); -} - -// Should be called before we add system libraries (C++ ABI, libstdc++/libc++, -// C runtime, etc). Returns true if sanitizer system deps need to be linked in. -static bool addSanitizerRuntimes(const ToolChain &TC, const ArgList &Args, - ArgStringList &CmdArgs) { - SmallVector<StringRef, 4> SharedRuntimes, StaticRuntimes, - NonWholeStaticRuntimes, HelperStaticRuntimes, RequiredSymbols; - collectSanitizerRuntimes(TC, Args, SharedRuntimes, StaticRuntimes, - NonWholeStaticRuntimes, HelperStaticRuntimes, - RequiredSymbols); - for (auto RT : SharedRuntimes) - addSanitizerRuntime(TC, Args, CmdArgs, RT, true, false); - for (auto RT : HelperStaticRuntimes) - addSanitizerRuntime(TC, Args, CmdArgs, RT, false, true); - bool AddExportDynamic = false; - for (auto RT : StaticRuntimes) { - addSanitizerRuntime(TC, Args, CmdArgs, RT, false, true); - AddExportDynamic |= !addSanitizerDynamicList(TC, Args, CmdArgs, RT); - } - for (auto RT : NonWholeStaticRuntimes) { - addSanitizerRuntime(TC, Args, CmdArgs, RT, false, false); - AddExportDynamic |= !addSanitizerDynamicList(TC, Args, CmdArgs, RT); - } - for (auto S : RequiredSymbols) { - CmdArgs.push_back("-u"); - CmdArgs.push_back(Args.MakeArgString(S)); - } - // If there is a static runtime with no dynamic list, force all the symbols - // to be dynamic to be sure we export sanitizer interface functions. - if (AddExportDynamic) - CmdArgs.push_back("-export-dynamic"); - - const SanitizerArgs &SanArgs = TC.getSanitizerArgs(); - if (SanArgs.hasCrossDsoCfi() && !AddExportDynamic) - CmdArgs.push_back("-export-dynamic-symbol=__cfi_check"); - - return !StaticRuntimes.empty(); -} - -static bool addXRayRuntime(const ToolChain &TC, const ArgList &Args, - ArgStringList &CmdArgs) { - if (Args.hasFlag(options::OPT_fxray_instrument, - options::OPT_fnoxray_instrument, false)) { - CmdArgs.push_back("-whole-archive"); - CmdArgs.push_back(TC.getCompilerRTArgString(Args, "xray", false)); - CmdArgs.push_back("-no-whole-archive"); - return true; - } - return false; -} - -static void linkXRayRuntimeDeps(const ToolChain &TC, const ArgList &Args, - ArgStringList &CmdArgs) { - CmdArgs.push_back("--no-as-needed"); - CmdArgs.push_back("-lpthread"); - CmdArgs.push_back("-lrt"); - CmdArgs.push_back("-lm"); - CmdArgs.push_back("-latomic"); - if (TC.GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) - CmdArgs.push_back("-lc++"); - else - CmdArgs.push_back("-lstdc++"); - if (TC.getTriple().getOS() != llvm::Triple::FreeBSD) - CmdArgs.push_back("-ldl"); -} - -static bool areOptimizationsEnabled(const ArgList &Args) { - // Find the last -O arg and see if it is non-zero. - if (Arg *A = Args.getLastArg(options::OPT_O_Group)) - return !A->getOption().matches(options::OPT_O0); - // Defaults to -O0. - return false; -} - -static bool mustUseFramePointerForTarget(const llvm::Triple &Triple) { - switch (Triple.getArch()){ - default: - return false; - case llvm::Triple::arm: - case llvm::Triple::thumb: - // ARM Darwin targets require a frame pointer to be always present to aid - // offline debugging via backtraces. - return Triple.isOSDarwin(); - } -} - -static bool useFramePointerForTargetByDefault(const ArgList &Args, - const llvm::Triple &Triple) { - switch (Triple.getArch()) { - case llvm::Triple::xcore: - case llvm::Triple::wasm32: - case llvm::Triple::wasm64: - // XCore never wants frame pointers, regardless of OS. - // WebAssembly never wants frame pointers. - return false; - default: - break; - } - - if (Triple.isOSLinux() || Triple.getOS() == llvm::Triple::CloudABI) { - switch (Triple.getArch()) { - // Don't use a frame pointer on linux if optimizing for certain targets. - case llvm::Triple::mips64: - case llvm::Triple::mips64el: - case llvm::Triple::mips: - case llvm::Triple::mipsel: - case llvm::Triple::systemz: - case llvm::Triple::x86: - case llvm::Triple::x86_64: - return !areOptimizationsEnabled(Args); - default: - return true; - } - } - - if (Triple.isOSWindows()) { - switch (Triple.getArch()) { - case llvm::Triple::x86: - return !areOptimizationsEnabled(Args); - case llvm::Triple::x86_64: - return Triple.isOSBinFormatMachO(); - case llvm::Triple::arm: - case llvm::Triple::thumb: - // Windows on ARM builds with FPO disabled to aid fast stack walking - return true; - default: - // All other supported Windows ISAs use xdata unwind information, so frame - // pointers are not generally useful. - return false; - } - } - - return true; -} - -static bool shouldUseFramePointer(const ArgList &Args, - const llvm::Triple &Triple) { - if (Arg *A = Args.getLastArg(options::OPT_fno_omit_frame_pointer, - options::OPT_fomit_frame_pointer)) - return A->getOption().matches(options::OPT_fno_omit_frame_pointer) || - mustUseFramePointerForTarget(Triple); - - if (Args.hasArg(options::OPT_pg)) - return true; - - return useFramePointerForTargetByDefault(Args, Triple); -} - -static bool shouldUseLeafFramePointer(const ArgList &Args, - const llvm::Triple &Triple) { - if (Arg *A = Args.getLastArg(options::OPT_mno_omit_leaf_frame_pointer, - options::OPT_momit_leaf_frame_pointer)) - return A->getOption().matches(options::OPT_mno_omit_leaf_frame_pointer) || - mustUseFramePointerForTarget(Triple); - - if (Args.hasArg(options::OPT_pg)) - return true; - - if (Triple.isPS4CPU()) - return false; - - return useFramePointerForTargetByDefault(Args, Triple); -} - -/// Add a CC1 option to specify the debug compilation directory. -static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs) { - SmallString<128> cwd; - if (!llvm::sys::fs::current_path(cwd)) { - CmdArgs.push_back("-fdebug-compilation-dir"); - CmdArgs.push_back(Args.MakeArgString(cwd)); - } -} - -static const char *SplitDebugName(const ArgList &Args, const InputInfo &Input) { - Arg *FinalOutput = Args.getLastArg(options::OPT_o); - if (FinalOutput && Args.hasArg(options::OPT_c)) { - SmallString<128> T(FinalOutput->getValue()); - llvm::sys::path::replace_extension(T, "dwo"); - return Args.MakeArgString(T); - } else { - // Use the compilation dir. - SmallString<128> T( - Args.getLastArgValue(options::OPT_fdebug_compilation_dir)); - SmallString<128> F(llvm::sys::path::stem(Input.getBaseInput())); - llvm::sys::path::replace_extension(F, "dwo"); - T += F; - return Args.MakeArgString(F); - } -} - -static void SplitDebugInfo(const ToolChain &TC, Compilation &C, const Tool &T, - const JobAction &JA, const ArgList &Args, - const InputInfo &Output, const char *OutFile) { - ArgStringList ExtractArgs; - ExtractArgs.push_back("--extract-dwo"); - - ArgStringList StripArgs; - StripArgs.push_back("--strip-dwo"); - - // Grabbing the output of the earlier compile step. - StripArgs.push_back(Output.getFilename()); - ExtractArgs.push_back(Output.getFilename()); - ExtractArgs.push_back(OutFile); - - const char *Exec = Args.MakeArgString(TC.GetProgramPath("objcopy")); - InputInfo II(types::TY_Object, Output.getFilename(), Output.getFilename()); - - // First extract the dwo sections. - C.addCommand(llvm::make_unique<Command>(JA, T, Exec, ExtractArgs, II)); - - // Then remove them from the original .o file. - C.addCommand(llvm::make_unique<Command>(JA, T, Exec, StripArgs, II)); -} - -/// \brief Vectorize at all optimization levels greater than 1 except for -Oz. -/// For -Oz the loop vectorizer is disable, while the slp vectorizer is enabled. -static bool shouldEnableVectorizerAtOLevel(const ArgList &Args, bool isSlpVec) { - if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { - if (A->getOption().matches(options::OPT_O4) || - A->getOption().matches(options::OPT_Ofast)) - return true; - - if (A->getOption().matches(options::OPT_O0)) - return false; - - assert(A->getOption().matches(options::OPT_O) && "Must have a -O flag"); - - // Vectorize -Os. - StringRef S(A->getValue()); - if (S == "s") - return true; - - // Don't vectorize -Oz, unless it's the slp vectorizer. - if (S == "z") - return isSlpVec; - - unsigned OptLevel = 0; - if (S.getAsInteger(10, OptLevel)) - return false; - - return OptLevel > 1; - } - - return false; -} - -/// Add -x lang to \p CmdArgs for \p Input. -static void addDashXForInput(const ArgList &Args, const InputInfo &Input, - ArgStringList &CmdArgs) { - // When using -verify-pch, we don't want to provide the type - // 'precompiled-header' if it was inferred from the file extension - if (Args.hasArg(options::OPT_verify_pch) && Input.getType() == types::TY_PCH) - return; - - CmdArgs.push_back("-x"); - if (Args.hasArg(options::OPT_rewrite_objc)) - CmdArgs.push_back(types::getTypeName(types::TY_PP_ObjCXX)); - else - CmdArgs.push_back(types::getTypeName(Input.getType())); -} - -// Claim options we don't want to warn if they are unused. We do this for -// options that build systems might add but are unused when assembling or only -// running the preprocessor for example. -static void claimNoWarnArgs(const ArgList &Args) { - // Don't warn about unused -f(no-)?lto. This can happen when we're - // preprocessing, precompiling or assembling. - Args.ClaimAllArgs(options::OPT_flto_EQ); - Args.ClaimAllArgs(options::OPT_flto); - Args.ClaimAllArgs(options::OPT_fno_lto); -} - -static void appendUserToPath(SmallVectorImpl<char> &Result) { -#ifdef LLVM_ON_UNIX - const char *Username = getenv("LOGNAME"); -#else - const char *Username = getenv("USERNAME"); -#endif - if (Username) { - // Validate that LoginName can be used in a path, and get its length. - size_t Len = 0; - for (const char *P = Username; *P; ++P, ++Len) { - if (!isAlphanumeric(*P) && *P != '_') { - Username = nullptr; - break; - } - } - - if (Username && Len > 0) { - Result.append(Username, Username + Len); - return; - } - } - -// Fallback to user id. -#ifdef LLVM_ON_UNIX - std::string UID = llvm::utostr(getuid()); -#else - // FIXME: Windows seems to have an 'SID' that might work. - std::string UID = "9999"; -#endif - Result.append(UID.begin(), UID.end()); -} - -static Arg *getLastProfileUseArg(const ArgList &Args) { - auto *ProfileUseArg = Args.getLastArg( - options::OPT_fprofile_instr_use, options::OPT_fprofile_instr_use_EQ, - options::OPT_fprofile_use, options::OPT_fprofile_use_EQ, - options::OPT_fno_profile_instr_use); - - if (ProfileUseArg && - ProfileUseArg->getOption().matches(options::OPT_fno_profile_instr_use)) - ProfileUseArg = nullptr; - - return ProfileUseArg; -} - -static void addPGOAndCoverageFlags(Compilation &C, const Driver &D, - const InputInfo &Output, const ArgList &Args, - ArgStringList &CmdArgs) { - - auto *PGOGenerateArg = Args.getLastArg(options::OPT_fprofile_generate, - options::OPT_fprofile_generate_EQ, - options::OPT_fno_profile_generate); - if (PGOGenerateArg && - PGOGenerateArg->getOption().matches(options::OPT_fno_profile_generate)) - PGOGenerateArg = nullptr; - - auto *ProfileGenerateArg = Args.getLastArg( - options::OPT_fprofile_instr_generate, - options::OPT_fprofile_instr_generate_EQ, - options::OPT_fno_profile_instr_generate); - if (ProfileGenerateArg && - ProfileGenerateArg->getOption().matches( - options::OPT_fno_profile_instr_generate)) - ProfileGenerateArg = nullptr; - - if (PGOGenerateArg && ProfileGenerateArg) - D.Diag(diag::err_drv_argument_not_allowed_with) - << PGOGenerateArg->getSpelling() << ProfileGenerateArg->getSpelling(); - - auto *ProfileUseArg = getLastProfileUseArg(Args); - - if (PGOGenerateArg && ProfileUseArg) - D.Diag(diag::err_drv_argument_not_allowed_with) - << ProfileUseArg->getSpelling() << PGOGenerateArg->getSpelling(); - - if (ProfileGenerateArg && ProfileUseArg) - D.Diag(diag::err_drv_argument_not_allowed_with) - << ProfileGenerateArg->getSpelling() << ProfileUseArg->getSpelling(); - - if (ProfileGenerateArg) { - if (ProfileGenerateArg->getOption().matches( - options::OPT_fprofile_instr_generate_EQ)) - CmdArgs.push_back(Args.MakeArgString(Twine("-fprofile-instrument-path=") + - ProfileGenerateArg->getValue())); - // The default is to use Clang Instrumentation. - CmdArgs.push_back("-fprofile-instrument=clang"); - } - - if (PGOGenerateArg) { - CmdArgs.push_back("-fprofile-instrument=llvm"); - if (PGOGenerateArg->getOption().matches( - options::OPT_fprofile_generate_EQ)) { - SmallString<128> Path(PGOGenerateArg->getValue()); - llvm::sys::path::append(Path, "default_%m.profraw"); - CmdArgs.push_back( - Args.MakeArgString(Twine("-fprofile-instrument-path=") + Path)); - } - } - - if (ProfileUseArg) { - if (ProfileUseArg->getOption().matches(options::OPT_fprofile_instr_use_EQ)) - CmdArgs.push_back(Args.MakeArgString( - Twine("-fprofile-instrument-use-path=") + ProfileUseArg->getValue())); - else if ((ProfileUseArg->getOption().matches( - options::OPT_fprofile_use_EQ) || - ProfileUseArg->getOption().matches( - options::OPT_fprofile_instr_use))) { - SmallString<128> Path( - ProfileUseArg->getNumValues() == 0 ? "" : ProfileUseArg->getValue()); - if (Path.empty() || llvm::sys::fs::is_directory(Path)) - llvm::sys::path::append(Path, "default.profdata"); - CmdArgs.push_back( - Args.MakeArgString(Twine("-fprofile-instrument-use-path=") + Path)); - } - } - - if (Args.hasArg(options::OPT_ftest_coverage) || - Args.hasArg(options::OPT_coverage)) - CmdArgs.push_back("-femit-coverage-notes"); - if (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs, - false) || - Args.hasArg(options::OPT_coverage)) - CmdArgs.push_back("-femit-coverage-data"); - - if (Args.hasFlag(options::OPT_fcoverage_mapping, - options::OPT_fno_coverage_mapping, false) && - !ProfileGenerateArg) - D.Diag(diag::err_drv_argument_only_allowed_with) - << "-fcoverage-mapping" - << "-fprofile-instr-generate"; - - if (Args.hasFlag(options::OPT_fcoverage_mapping, - options::OPT_fno_coverage_mapping, false)) - CmdArgs.push_back("-fcoverage-mapping"); - - if (C.getArgs().hasArg(options::OPT_c) || - C.getArgs().hasArg(options::OPT_S)) { - if (Output.isFilename()) { - CmdArgs.push_back("-coverage-notes-file"); - SmallString<128> OutputFilename; - if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o)) - OutputFilename = FinalOutput->getValue(); - else - OutputFilename = llvm::sys::path::filename(Output.getBaseInput()); - SmallString<128> CoverageFilename = OutputFilename; - if (llvm::sys::path::is_relative(CoverageFilename)) { - SmallString<128> Pwd; - if (!llvm::sys::fs::current_path(Pwd)) { - llvm::sys::path::append(Pwd, CoverageFilename); - CoverageFilename.swap(Pwd); - } - } - llvm::sys::path::replace_extension(CoverageFilename, "gcno"); - CmdArgs.push_back(Args.MakeArgString(CoverageFilename)); - - // Leave -fprofile-dir= an unused argument unless .gcda emission is - // enabled. To be polite, with '-fprofile-arcs -fno-profile-arcs' consider - // the flag used. There is no -fno-profile-dir, so the user has no - // targeted way to suppress the warning. - if (Args.hasArg(options::OPT_fprofile_arcs) || - Args.hasArg(options::OPT_coverage)) { - CmdArgs.push_back("-coverage-data-file"); - if (Arg *FProfileDir = Args.getLastArg(options::OPT_fprofile_dir)) { - CoverageFilename = FProfileDir->getValue(); - llvm::sys::path::append(CoverageFilename, OutputFilename); - } - llvm::sys::path::replace_extension(CoverageFilename, "gcda"); - CmdArgs.push_back(Args.MakeArgString(CoverageFilename)); - } - } - } -} - -static void addPS4ProfileRTArgs(const ToolChain &TC, const ArgList &Args, - ArgStringList &CmdArgs) { - if ((Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs, - false) || - Args.hasFlag(options::OPT_fprofile_generate, - options::OPT_fno_profile_instr_generate, false) || - Args.hasFlag(options::OPT_fprofile_generate_EQ, - options::OPT_fno_profile_instr_generate, false) || - Args.hasFlag(options::OPT_fprofile_instr_generate, - options::OPT_fno_profile_instr_generate, false) || - Args.hasFlag(options::OPT_fprofile_instr_generate_EQ, - options::OPT_fno_profile_instr_generate, false) || - Args.hasArg(options::OPT_fcreate_profile) || - Args.hasArg(options::OPT_coverage))) - CmdArgs.push_back("--dependent-lib=libclang_rt.profile-x86_64.a"); -} - -/// Parses the various -fpic/-fPIC/-fpie/-fPIE arguments. Then, -/// smooshes them together with platform defaults, to decide whether -/// this compile should be using PIC mode or not. Returns a tuple of -/// (RelocationModel, PICLevel, IsPIE). -static std::tuple<llvm::Reloc::Model, unsigned, bool> -ParsePICArgs(const ToolChain &ToolChain, const ArgList &Args) { - const llvm::Triple &EffectiveTriple = ToolChain.getEffectiveTriple(); - const llvm::Triple &Triple = ToolChain.getTriple(); - - bool PIE = ToolChain.isPIEDefault(); - bool PIC = PIE || ToolChain.isPICDefault(); - // The Darwin/MachO default to use PIC does not apply when using -static. - if (Triple.isOSBinFormatMachO() && Args.hasArg(options::OPT_static)) - PIE = PIC = false; - bool IsPICLevelTwo = PIC; - - bool KernelOrKext = - Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext); - - // Android-specific defaults for PIC/PIE - if (Triple.isAndroid()) { - switch (Triple.getArch()) { - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: - case llvm::Triple::aarch64: - case llvm::Triple::mips: - case llvm::Triple::mipsel: - case llvm::Triple::mips64: - case llvm::Triple::mips64el: - PIC = true; // "-fpic" - break; - - case llvm::Triple::x86: - case llvm::Triple::x86_64: - PIC = true; // "-fPIC" - IsPICLevelTwo = true; - break; - - default: - break; - } - } - - // OpenBSD-specific defaults for PIE - if (Triple.getOS() == llvm::Triple::OpenBSD) { - switch (ToolChain.getArch()) { - case llvm::Triple::mips64: - case llvm::Triple::mips64el: - case llvm::Triple::sparcel: - case llvm::Triple::x86: - case llvm::Triple::x86_64: - IsPICLevelTwo = false; // "-fpie" - break; - - case llvm::Triple::ppc: - case llvm::Triple::sparc: - case llvm::Triple::sparcv9: - IsPICLevelTwo = true; // "-fPIE" - break; - - default: - break; - } - } - - // The last argument relating to either PIC or PIE wins, and no - // other argument is used. If the last argument is any flavor of the - // '-fno-...' arguments, both PIC and PIE are disabled. Any PIE - // option implicitly enables PIC at the same level. - Arg *LastPICArg = Args.getLastArg(options::OPT_fPIC, options::OPT_fno_PIC, - options::OPT_fpic, options::OPT_fno_pic, - options::OPT_fPIE, options::OPT_fno_PIE, - options::OPT_fpie, options::OPT_fno_pie); - if (Triple.isOSWindows() && LastPICArg && - LastPICArg == - Args.getLastArg(options::OPT_fPIC, options::OPT_fpic, - options::OPT_fPIE, options::OPT_fpie)) { - ToolChain.getDriver().Diag(diag::err_drv_unsupported_opt_for_target) - << LastPICArg->getSpelling() << Triple.str(); - if (Triple.getArch() == llvm::Triple::x86_64) - return std::make_tuple(llvm::Reloc::PIC_, 2U, false); - return std::make_tuple(llvm::Reloc::Static, 0U, false); - } - - // Check whether the tool chain trumps the PIC-ness decision. If the PIC-ness - // is forced, then neither PIC nor PIE flags will have no effect. - if (!ToolChain.isPICDefaultForced()) { - if (LastPICArg) { - Option O = LastPICArg->getOption(); - if (O.matches(options::OPT_fPIC) || O.matches(options::OPT_fpic) || - O.matches(options::OPT_fPIE) || O.matches(options::OPT_fpie)) { - PIE = O.matches(options::OPT_fPIE) || O.matches(options::OPT_fpie); - PIC = - PIE || O.matches(options::OPT_fPIC) || O.matches(options::OPT_fpic); - IsPICLevelTwo = - O.matches(options::OPT_fPIE) || O.matches(options::OPT_fPIC); - } else { - PIE = PIC = false; - if (EffectiveTriple.isPS4CPU()) { - Arg *ModelArg = Args.getLastArg(options::OPT_mcmodel_EQ); - StringRef Model = ModelArg ? ModelArg->getValue() : ""; - if (Model != "kernel") { - PIC = true; - ToolChain.getDriver().Diag(diag::warn_drv_ps4_force_pic) - << LastPICArg->getSpelling(); - } - } - } - } - } - - // Introduce a Darwin and PS4-specific hack. If the default is PIC, but the - // PIC level would've been set to level 1, force it back to level 2 PIC - // instead. - if (PIC && (Triple.isOSDarwin() || EffectiveTriple.isPS4CPU())) - IsPICLevelTwo |= ToolChain.isPICDefault(); - - // This kernel flags are a trump-card: they will disable PIC/PIE - // generation, independent of the argument order. - if (KernelOrKext && - ((!EffectiveTriple.isiOS() || EffectiveTriple.isOSVersionLT(6)) && - !EffectiveTriple.isWatchOS())) - PIC = PIE = false; - - if (Arg *A = Args.getLastArg(options::OPT_mdynamic_no_pic)) { - // This is a very special mode. It trumps the other modes, almost no one - // uses it, and it isn't even valid on any OS but Darwin. - if (!Triple.isOSDarwin()) - ToolChain.getDriver().Diag(diag::err_drv_unsupported_opt_for_target) - << A->getSpelling() << Triple.str(); - - // FIXME: Warn when this flag trumps some other PIC or PIE flag. - - // Only a forced PIC mode can cause the actual compile to have PIC defines - // etc., no flags are sufficient. This behavior was selected to closely - // match that of llvm-gcc and Apple GCC before that. - PIC = ToolChain.isPICDefault() && ToolChain.isPICDefaultForced(); - - return std::make_tuple(llvm::Reloc::DynamicNoPIC, PIC ? 2U : 0U, false); - } - - bool EmbeddedPISupported; - switch (Triple.getArch()) { - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: - EmbeddedPISupported = true; - break; - default: - EmbeddedPISupported = false; - break; - } - - bool ROPI = false, RWPI = false; - Arg* LastROPIArg = Args.getLastArg(options::OPT_fropi, options::OPT_fno_ropi); - if (LastROPIArg && LastROPIArg->getOption().matches(options::OPT_fropi)) { - if (!EmbeddedPISupported) - ToolChain.getDriver().Diag(diag::err_drv_unsupported_opt_for_target) - << LastROPIArg->getSpelling() << Triple.str(); - ROPI = true; - } - Arg *LastRWPIArg = Args.getLastArg(options::OPT_frwpi, options::OPT_fno_rwpi); - if (LastRWPIArg && LastRWPIArg->getOption().matches(options::OPT_frwpi)) { - if (!EmbeddedPISupported) - ToolChain.getDriver().Diag(diag::err_drv_unsupported_opt_for_target) - << LastRWPIArg->getSpelling() << Triple.str(); - RWPI = true; - } - - // ROPI and RWPI are not comaptible with PIC or PIE. - if ((ROPI || RWPI) && (PIC || PIE)) - ToolChain.getDriver().Diag(diag::err_drv_ropi_rwpi_incompatible_with_pic); - - if (PIC) - return std::make_tuple(llvm::Reloc::PIC_, IsPICLevelTwo ? 2U : 1U, PIE); - - llvm::Reloc::Model RelocM = llvm::Reloc::Static; - if (ROPI && RWPI) - RelocM = llvm::Reloc::ROPI_RWPI; - else if (ROPI) - RelocM = llvm::Reloc::ROPI; - else if (RWPI) - RelocM = llvm::Reloc::RWPI; - - return std::make_tuple(RelocM, 0U, false); -} - -static const char *RelocationModelName(llvm::Reloc::Model Model) { - switch (Model) { - case llvm::Reloc::Static: - return "static"; - case llvm::Reloc::PIC_: - return "pic"; - case llvm::Reloc::DynamicNoPIC: - return "dynamic-no-pic"; - case llvm::Reloc::ROPI: - return "ropi"; - case llvm::Reloc::RWPI: - return "rwpi"; - case llvm::Reloc::ROPI_RWPI: - return "ropi-rwpi"; - } - llvm_unreachable("Unknown Reloc::Model kind"); -} - -static void AddAssemblerKPIC(const ToolChain &ToolChain, const ArgList &Args, - ArgStringList &CmdArgs) { - llvm::Reloc::Model RelocationModel; - unsigned PICLevel; - bool IsPIE; - std::tie(RelocationModel, PICLevel, IsPIE) = ParsePICArgs(ToolChain, Args); - - if (RelocationModel != llvm::Reloc::Static) - CmdArgs.push_back("-KPIC"); -} - -void Clang::DumpCompilationDatabase(Compilation &C, StringRef Filename, - StringRef Target, const InputInfo &Output, - const InputInfo &Input, const ArgList &Args) const { - // If this is a dry run, do not create the compilation database file. - if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) - return; - - using llvm::yaml::escape; - const Driver &D = getToolChain().getDriver(); - - if (!CompilationDatabase) { - std::error_code EC; - auto File = llvm::make_unique<llvm::raw_fd_ostream>(Filename, EC, llvm::sys::fs::F_Text); - if (EC) { - D.Diag(clang::diag::err_drv_compilationdatabase) << Filename - << EC.message(); - return; - } - CompilationDatabase = std::move(File); - } - auto &CDB = *CompilationDatabase; - SmallString<128> Buf; - if (llvm::sys::fs::current_path(Buf)) - Buf = "."; - CDB << "{ \"directory\": \"" << escape(Buf) << "\""; - CDB << ", \"file\": \"" << escape(Input.getFilename()) << "\""; - CDB << ", \"output\": \"" << escape(Output.getFilename()) << "\""; - CDB << ", \"arguments\": [\"" << escape(D.ClangExecutable) << "\""; - Buf = "-x"; - Buf += types::getTypeName(Input.getType()); - CDB << ", \"" << escape(Buf) << "\""; - if (!D.SysRoot.empty() && !Args.hasArg(options::OPT__sysroot_EQ)) { - Buf = "--sysroot="; - Buf += D.SysRoot; - CDB << ", \"" << escape(Buf) << "\""; - } - CDB << ", \"" << escape(Input.getFilename()) << "\""; - for (auto &A: Args) { - auto &O = A->getOption(); - // Skip language selection, which is positional. - if (O.getID() == options::OPT_x) - continue; - // Skip writing dependency output and the compilation database itself. - if (O.getGroup().isValid() && O.getGroup().getID() == options::OPT_M_Group) - continue; - // Skip inputs. - if (O.getKind() == Option::InputClass) - continue; - // All other arguments are quoted and appended. - ArgStringList ASL; - A->render(Args, ASL); - for (auto &it: ASL) - CDB << ", \"" << escape(it) << "\""; - } - Buf = "--target="; - Buf += Target; - CDB << ", \"" << escape(Buf) << "\"]},\n"; -} - -void Clang::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, const InputInfoList &Inputs, - const ArgList &Args, const char *LinkingOutput) const { - const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); - const std::string &TripleStr = Triple.getTriple(); - - bool KernelOrKext = - Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext); - const Driver &D = getToolChain().getDriver(); - ArgStringList CmdArgs; - - // Check number of inputs for sanity. We need at least one input. - assert(Inputs.size() >= 1 && "Must have at least one input."); - const InputInfo &Input = Inputs[0]; - // CUDA compilation may have multiple inputs (source file + results of - // device-side compilations). OpenMP device jobs also take the host IR as a - // second input. All other jobs are expected to have exactly one - // input. - bool IsCuda = JA.isOffloading(Action::OFK_Cuda); - bool IsOpenMPDevice = JA.isDeviceOffloading(Action::OFK_OpenMP); - assert((IsCuda || (IsOpenMPDevice && Inputs.size() == 2) || - Inputs.size() == 1) && - "Unable to handle multiple inputs."); - - bool IsWindowsGNU = getToolChain().getTriple().isWindowsGNUEnvironment(); - bool IsWindowsCygnus = - getToolChain().getTriple().isWindowsCygwinEnvironment(); - bool IsWindowsMSVC = getToolChain().getTriple().isWindowsMSVCEnvironment(); - bool IsPS4CPU = getToolChain().getTriple().isPS4CPU(); - bool IsIAMCU = getToolChain().getTriple().isOSIAMCU(); - - // Adjust IsWindowsXYZ for CUDA compilations. Even when compiling in device - // mode (i.e., getToolchain().getTriple() is NVPTX, not Windows), we need to - // pass Windows-specific flags to cc1. - if (IsCuda) { - const llvm::Triple *AuxTriple = getToolChain().getAuxTriple(); - IsWindowsMSVC |= AuxTriple && AuxTriple->isWindowsMSVCEnvironment(); - IsWindowsGNU |= AuxTriple && AuxTriple->isWindowsGNUEnvironment(); - IsWindowsCygnus |= AuxTriple && AuxTriple->isWindowsCygwinEnvironment(); - } - - // C++ is not supported for IAMCU. - if (IsIAMCU && types::isCXX(Input.getType())) - D.Diag(diag::err_drv_clang_unsupported) << "C++ for IAMCU"; - - // Invoke ourselves in -cc1 mode. - // - // FIXME: Implement custom jobs for internal actions. - CmdArgs.push_back("-cc1"); - - // Add the "effective" target triple. - CmdArgs.push_back("-triple"); - CmdArgs.push_back(Args.MakeArgString(TripleStr)); - - if (const Arg *MJ = Args.getLastArg(options::OPT_MJ)) { - DumpCompilationDatabase(C, MJ->getValue(), TripleStr, Output, Input, Args); - Args.ClaimAllArgs(options::OPT_MJ); - } - - if (IsCuda) { - // We have to pass the triple of the host if compiling for a CUDA device and - // vice-versa. - std::string NormalizedTriple; - if (JA.isDeviceOffloading(Action::OFK_Cuda)) - NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Host>() - ->getTriple() - .normalize(); - else - NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Cuda>() - ->getTriple() - .normalize(); - - CmdArgs.push_back("-aux-triple"); - CmdArgs.push_back(Args.MakeArgString(NormalizedTriple)); - } - - if (Triple.isOSWindows() && (Triple.getArch() == llvm::Triple::arm || - Triple.getArch() == llvm::Triple::thumb)) { - unsigned Offset = Triple.getArch() == llvm::Triple::arm ? 4 : 6; - unsigned Version; - Triple.getArchName().substr(Offset).getAsInteger(10, Version); - if (Version < 7) - D.Diag(diag::err_target_unsupported_arch) << Triple.getArchName() - << TripleStr; - } - - // Push all default warning arguments that are specific to - // the given target. These come before user provided warning options - // are provided. - getToolChain().addClangWarningOptions(CmdArgs); - - // Select the appropriate action. - RewriteKind rewriteKind = RK_None; - - if (isa<AnalyzeJobAction>(JA)) { - assert(JA.getType() == types::TY_Plist && "Invalid output type."); - CmdArgs.push_back("-analyze"); - } else if (isa<MigrateJobAction>(JA)) { - CmdArgs.push_back("-migrate"); - } else if (isa<PreprocessJobAction>(JA)) { - if (Output.getType() == types::TY_Dependencies) - CmdArgs.push_back("-Eonly"); - else { - CmdArgs.push_back("-E"); - if (Args.hasArg(options::OPT_rewrite_objc) && - !Args.hasArg(options::OPT_g_Group)) - CmdArgs.push_back("-P"); - } - } else if (isa<AssembleJobAction>(JA)) { - CmdArgs.push_back("-emit-obj"); - - CollectArgsForIntegratedAssembler(C, Args, CmdArgs, D); - - // Also ignore explicit -force_cpusubtype_ALL option. - (void)Args.hasArg(options::OPT_force__cpusubtype__ALL); - } else if (isa<PrecompileJobAction>(JA)) { - // Use PCH if the user requested it. - bool UsePCH = D.CCCUsePCH; - - if (JA.getType() == types::TY_Nothing) - CmdArgs.push_back("-fsyntax-only"); - else if (JA.getType() == types::TY_ModuleFile) - CmdArgs.push_back("-emit-module-interface"); - else if (UsePCH) - CmdArgs.push_back("-emit-pch"); - else - CmdArgs.push_back("-emit-pth"); - } else if (isa<VerifyPCHJobAction>(JA)) { - CmdArgs.push_back("-verify-pch"); - } else { - assert((isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) && - "Invalid action for clang tool."); - if (JA.getType() == types::TY_Nothing) { - CmdArgs.push_back("-fsyntax-only"); - } else if (JA.getType() == types::TY_LLVM_IR || - JA.getType() == types::TY_LTO_IR) { - CmdArgs.push_back("-emit-llvm"); - } else if (JA.getType() == types::TY_LLVM_BC || - JA.getType() == types::TY_LTO_BC) { - CmdArgs.push_back("-emit-llvm-bc"); - } else if (JA.getType() == types::TY_PP_Asm) { - CmdArgs.push_back("-S"); - } else if (JA.getType() == types::TY_AST) { - CmdArgs.push_back("-emit-pch"); - } else if (JA.getType() == types::TY_ModuleFile) { - CmdArgs.push_back("-module-file-info"); - } else if (JA.getType() == types::TY_RewrittenObjC) { - CmdArgs.push_back("-rewrite-objc"); - rewriteKind = RK_NonFragile; - } else if (JA.getType() == types::TY_RewrittenLegacyObjC) { - CmdArgs.push_back("-rewrite-objc"); - rewriteKind = RK_Fragile; - } else { - assert(JA.getType() == types::TY_PP_Asm && "Unexpected output type!"); - } - - // Preserve use-list order by default when emitting bitcode, so that - // loading the bitcode up in 'opt' or 'llc' and running passes gives the - // same result as running passes here. For LTO, we don't need to preserve - // the use-list order, since serialization to bitcode is part of the flow. - if (JA.getType() == types::TY_LLVM_BC) - CmdArgs.push_back("-emit-llvm-uselists"); - - if (D.isUsingLTO()) - Args.AddLastArg(CmdArgs, options::OPT_flto, options::OPT_flto_EQ); - } - - if (const Arg *A = Args.getLastArg(options::OPT_fthinlto_index_EQ)) { - if (!types::isLLVMIR(Input.getType())) - D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args) - << "-x ir"; - Args.AddLastArg(CmdArgs, options::OPT_fthinlto_index_EQ); - } - - // Embed-bitcode option. - if (C.getDriver().embedBitcodeInObject() && - (isa<BackendJobAction>(JA) || isa<AssembleJobAction>(JA))) { - // Add flags implied by -fembed-bitcode. - Args.AddLastArg(CmdArgs, options::OPT_fembed_bitcode_EQ); - // Disable all llvm IR level optimizations. - CmdArgs.push_back("-disable-llvm-passes"); - } - if (C.getDriver().embedBitcodeMarkerOnly()) - CmdArgs.push_back("-fembed-bitcode=marker"); - - // We normally speed up the clang process a bit by skipping destructors at - // exit, but when we're generating diagnostics we can rely on some of the - // cleanup. - if (!C.isForDiagnostics()) - CmdArgs.push_back("-disable-free"); - -// Disable the verification pass in -asserts builds. -#ifdef NDEBUG - CmdArgs.push_back("-disable-llvm-verifier"); - // Discard LLVM value names in -asserts builds. - CmdArgs.push_back("-discard-value-names"); -#endif - - // Set the main file name, so that debug info works even with - // -save-temps. - CmdArgs.push_back("-main-file-name"); - CmdArgs.push_back(getBaseInputName(Args, Input)); - - // Some flags which affect the language (via preprocessor - // defines). - if (Args.hasArg(options::OPT_static)) - CmdArgs.push_back("-static-define"); - - if (isa<AnalyzeJobAction>(JA)) { - // Enable region store model by default. - CmdArgs.push_back("-analyzer-store=region"); - - // Treat blocks as analysis entry points. - CmdArgs.push_back("-analyzer-opt-analyze-nested-blocks"); - - CmdArgs.push_back("-analyzer-eagerly-assume"); - - // Add default argument set. - if (!Args.hasArg(options::OPT__analyzer_no_default_checks)) { - CmdArgs.push_back("-analyzer-checker=core"); - CmdArgs.push_back("-analyzer-checker=apiModeling"); - - if (!IsWindowsMSVC) { - CmdArgs.push_back("-analyzer-checker=unix"); - } else { - // Enable "unix" checkers that also work on Windows. - CmdArgs.push_back("-analyzer-checker=unix.API"); - CmdArgs.push_back("-analyzer-checker=unix.Malloc"); - CmdArgs.push_back("-analyzer-checker=unix.MallocSizeof"); - CmdArgs.push_back("-analyzer-checker=unix.MismatchedDeallocator"); - CmdArgs.push_back("-analyzer-checker=unix.cstring.BadSizeArg"); - CmdArgs.push_back("-analyzer-checker=unix.cstring.NullArg"); - } - - // Disable some unix checkers for PS4. - if (IsPS4CPU) { - CmdArgs.push_back("-analyzer-disable-checker=unix.API"); - CmdArgs.push_back("-analyzer-disable-checker=unix.Vfork"); - } - - if (getToolChain().getTriple().getVendor() == llvm::Triple::Apple) - CmdArgs.push_back("-analyzer-checker=osx"); - - CmdArgs.push_back("-analyzer-checker=deadcode"); - - if (types::isCXX(Input.getType())) - CmdArgs.push_back("-analyzer-checker=cplusplus"); - - if (!IsPS4CPU) { - CmdArgs.push_back( - "-analyzer-checker=security.insecureAPI.UncheckedReturn"); - CmdArgs.push_back("-analyzer-checker=security.insecureAPI.getpw"); - CmdArgs.push_back("-analyzer-checker=security.insecureAPI.gets"); - CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mktemp"); - CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mkstemp"); - CmdArgs.push_back("-analyzer-checker=security.insecureAPI.vfork"); - } - - // Default nullability checks. - CmdArgs.push_back("-analyzer-checker=nullability.NullPassedToNonnull"); - CmdArgs.push_back( - "-analyzer-checker=nullability.NullReturnedFromNonnull"); - } - - // Set the output format. The default is plist, for (lame) historical - // reasons. - CmdArgs.push_back("-analyzer-output"); - if (Arg *A = Args.getLastArg(options::OPT__analyzer_output)) - CmdArgs.push_back(A->getValue()); - else - CmdArgs.push_back("plist"); - - // Disable the presentation of standard compiler warnings when - // using --analyze. We only want to show static analyzer diagnostics - // or frontend errors. - CmdArgs.push_back("-w"); - - // Add -Xanalyzer arguments when running as analyzer. - Args.AddAllArgValues(CmdArgs, options::OPT_Xanalyzer); - } - - CheckCodeGenerationOptions(D, Args); - - llvm::Reloc::Model RelocationModel; - unsigned PICLevel; - bool IsPIE; - std::tie(RelocationModel, PICLevel, IsPIE) = - ParsePICArgs(getToolChain(), Args); - - const char *RMName = RelocationModelName(RelocationModel); - - if ((RelocationModel == llvm::Reloc::ROPI || - RelocationModel == llvm::Reloc::ROPI_RWPI) && - types::isCXX(Input.getType()) && - !Args.hasArg(options::OPT_fallow_unsupported)) - D.Diag(diag::err_drv_ropi_incompatible_with_cxx); - - if (RMName) { - CmdArgs.push_back("-mrelocation-model"); - CmdArgs.push_back(RMName); - } - if (PICLevel > 0) { - CmdArgs.push_back("-pic-level"); - CmdArgs.push_back(PICLevel == 1 ? "1" : "2"); - if (IsPIE) - CmdArgs.push_back("-pic-is-pie"); - } - - if (Arg *A = Args.getLastArg(options::OPT_meabi)) { - CmdArgs.push_back("-meabi"); - CmdArgs.push_back(A->getValue()); - } - - CmdArgs.push_back("-mthread-model"); - if (Arg *A = Args.getLastArg(options::OPT_mthread_model)) - CmdArgs.push_back(A->getValue()); - else - CmdArgs.push_back(Args.MakeArgString(getToolChain().getThreadModel())); - - Args.AddLastArg(CmdArgs, options::OPT_fveclib); - - if (!Args.hasFlag(options::OPT_fmerge_all_constants, - options::OPT_fno_merge_all_constants)) - CmdArgs.push_back("-fno-merge-all-constants"); - - // LLVM Code Generator Options. - - if (Args.hasArg(options::OPT_frewrite_map_file) || - Args.hasArg(options::OPT_frewrite_map_file_EQ)) { - for (const Arg *A : Args.filtered(options::OPT_frewrite_map_file, - options::OPT_frewrite_map_file_EQ)) { - StringRef Map = A->getValue(); - if (!llvm::sys::fs::exists(Map)) { - D.Diag(diag::err_drv_no_such_file) << Map; - } else { - CmdArgs.push_back("-frewrite-map-file"); - CmdArgs.push_back(A->getValue()); - A->claim(); - } - } - } - - if (Arg *A = Args.getLastArg(options::OPT_Wframe_larger_than_EQ)) { - StringRef v = A->getValue(); - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back(Args.MakeArgString("-warn-stack-size=" + v)); - A->claim(); - } - - if (!Args.hasFlag(options::OPT_fjump_tables, options::OPT_fno_jump_tables, - true)) - CmdArgs.push_back("-fno-jump-tables"); - - if (!Args.hasFlag(options::OPT_fpreserve_as_comments, - options::OPT_fno_preserve_as_comments, true)) - CmdArgs.push_back("-fno-preserve-as-comments"); - - if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) { - CmdArgs.push_back("-mregparm"); - CmdArgs.push_back(A->getValue()); - } - - if (Arg *A = Args.getLastArg(options::OPT_fpcc_struct_return, - options::OPT_freg_struct_return)) { - if (getToolChain().getArch() != llvm::Triple::x86) { - D.Diag(diag::err_drv_unsupported_opt_for_target) - << A->getSpelling() << getToolChain().getTriple().str(); - } else if (A->getOption().matches(options::OPT_fpcc_struct_return)) { - CmdArgs.push_back("-fpcc-struct-return"); - } else { - assert(A->getOption().matches(options::OPT_freg_struct_return)); - CmdArgs.push_back("-freg-struct-return"); - } - } - - if (Args.hasFlag(options::OPT_mrtd, options::OPT_mno_rtd, false)) - CmdArgs.push_back("-fdefault-calling-conv=stdcall"); - - if (shouldUseFramePointer(Args, getToolChain().getTriple())) - CmdArgs.push_back("-mdisable-fp-elim"); - if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss, - options::OPT_fno_zero_initialized_in_bss)) - CmdArgs.push_back("-mno-zero-initialized-in-bss"); - - bool OFastEnabled = isOptimizationLevelFast(Args); - // If -Ofast is the optimization level, then -fstrict-aliasing should be - // enabled. This alias option is being used to simplify the hasFlag logic. - OptSpecifier StrictAliasingAliasOption = - OFastEnabled ? options::OPT_Ofast : options::OPT_fstrict_aliasing; - // We turn strict aliasing off by default if we're in CL mode, since MSVC - // doesn't do any TBAA. - bool TBAAOnByDefault = !getToolChain().getDriver().IsCLMode(); - if (!Args.hasFlag(options::OPT_fstrict_aliasing, StrictAliasingAliasOption, - options::OPT_fno_strict_aliasing, TBAAOnByDefault)) - CmdArgs.push_back("-relaxed-aliasing"); - if (!Args.hasFlag(options::OPT_fstruct_path_tbaa, - options::OPT_fno_struct_path_tbaa)) - CmdArgs.push_back("-no-struct-path-tbaa"); - if (Args.hasFlag(options::OPT_fstrict_enums, options::OPT_fno_strict_enums, - false)) - CmdArgs.push_back("-fstrict-enums"); - if (!Args.hasFlag(options::OPT_fstrict_return, options::OPT_fno_strict_return, - true)) - CmdArgs.push_back("-fno-strict-return"); - if (Args.hasFlag(options::OPT_fstrict_vtable_pointers, - options::OPT_fno_strict_vtable_pointers, - false)) - CmdArgs.push_back("-fstrict-vtable-pointers"); - if (!Args.hasFlag(options::OPT_foptimize_sibling_calls, - options::OPT_fno_optimize_sibling_calls)) - CmdArgs.push_back("-mdisable-tail-calls"); - - // Handle segmented stacks. - if (Args.hasArg(options::OPT_fsplit_stack)) - CmdArgs.push_back("-split-stacks"); - - // If -Ofast is the optimization level, then -ffast-math should be enabled. - // This alias option is being used to simplify the getLastArg logic. - OptSpecifier FastMathAliasOption = - OFastEnabled ? options::OPT_Ofast : options::OPT_ffast_math; - - // Handle various floating point optimization flags, mapping them to the - // appropriate LLVM code generation flags. The pattern for all of these is to - // default off the codegen optimizations, and if any flag enables them and no - // flag disables them after the flag enabling them, enable the codegen - // optimization. This is complicated by several "umbrella" flags. - if (Arg *A = Args.getLastArg( - options::OPT_ffast_math, FastMathAliasOption, - options::OPT_fno_fast_math, options::OPT_ffinite_math_only, - options::OPT_fno_finite_math_only, options::OPT_fhonor_infinities, - options::OPT_fno_honor_infinities)) - if (A->getOption().getID() != options::OPT_fno_fast_math && - A->getOption().getID() != options::OPT_fno_finite_math_only && - A->getOption().getID() != options::OPT_fhonor_infinities) - CmdArgs.push_back("-menable-no-infs"); - if (Arg *A = Args.getLastArg( - options::OPT_ffast_math, FastMathAliasOption, - options::OPT_fno_fast_math, options::OPT_ffinite_math_only, - options::OPT_fno_finite_math_only, options::OPT_fhonor_nans, - options::OPT_fno_honor_nans)) - if (A->getOption().getID() != options::OPT_fno_fast_math && - A->getOption().getID() != options::OPT_fno_finite_math_only && - A->getOption().getID() != options::OPT_fhonor_nans) - CmdArgs.push_back("-menable-no-nans"); - - // -fmath-errno is the default on some platforms, e.g. BSD-derived OSes. - bool MathErrno = getToolChain().IsMathErrnoDefault(); - if (Arg *A = - Args.getLastArg(options::OPT_ffast_math, FastMathAliasOption, - options::OPT_fno_fast_math, options::OPT_fmath_errno, - options::OPT_fno_math_errno)) { - // Turning on -ffast_math (with either flag) removes the need for MathErrno. - // However, turning *off* -ffast_math merely restores the toolchain default - // (which may be false). - if (A->getOption().getID() == options::OPT_fno_math_errno || - A->getOption().getID() == options::OPT_ffast_math || - A->getOption().getID() == options::OPT_Ofast) - MathErrno = false; - else if (A->getOption().getID() == options::OPT_fmath_errno) - MathErrno = true; - } - if (MathErrno) - CmdArgs.push_back("-fmath-errno"); - - // There are several flags which require disabling very specific - // optimizations. Any of these being disabled forces us to turn off the - // entire set of LLVM optimizations, so collect them through all the flag - // madness. - bool AssociativeMath = false; - if (Arg *A = Args.getLastArg( - options::OPT_ffast_math, FastMathAliasOption, - options::OPT_fno_fast_math, options::OPT_funsafe_math_optimizations, - options::OPT_fno_unsafe_math_optimizations, - options::OPT_fassociative_math, options::OPT_fno_associative_math)) - if (A->getOption().getID() != options::OPT_fno_fast_math && - A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations && - A->getOption().getID() != options::OPT_fno_associative_math) - AssociativeMath = true; - bool ReciprocalMath = false; - if (Arg *A = Args.getLastArg( - options::OPT_ffast_math, FastMathAliasOption, - options::OPT_fno_fast_math, options::OPT_funsafe_math_optimizations, - options::OPT_fno_unsafe_math_optimizations, - options::OPT_freciprocal_math, options::OPT_fno_reciprocal_math)) - if (A->getOption().getID() != options::OPT_fno_fast_math && - A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations && - A->getOption().getID() != options::OPT_fno_reciprocal_math) - ReciprocalMath = true; - bool SignedZeros = true; - if (Arg *A = Args.getLastArg( - options::OPT_ffast_math, FastMathAliasOption, - options::OPT_fno_fast_math, options::OPT_funsafe_math_optimizations, - options::OPT_fno_unsafe_math_optimizations, - options::OPT_fsigned_zeros, options::OPT_fno_signed_zeros)) - if (A->getOption().getID() != options::OPT_fno_fast_math && - A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations && - A->getOption().getID() != options::OPT_fsigned_zeros) - SignedZeros = false; - bool TrappingMath = true; - if (Arg *A = Args.getLastArg( - options::OPT_ffast_math, FastMathAliasOption, - options::OPT_fno_fast_math, options::OPT_funsafe_math_optimizations, - options::OPT_fno_unsafe_math_optimizations, - options::OPT_ftrapping_math, options::OPT_fno_trapping_math)) - if (A->getOption().getID() != options::OPT_fno_fast_math && - A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations && - A->getOption().getID() != options::OPT_ftrapping_math) - TrappingMath = false; - if (!MathErrno && AssociativeMath && ReciprocalMath && !SignedZeros && - !TrappingMath) - CmdArgs.push_back("-menable-unsafe-fp-math"); - - if (!SignedZeros) - CmdArgs.push_back("-fno-signed-zeros"); - - if (ReciprocalMath) - CmdArgs.push_back("-freciprocal-math"); - - if (!TrappingMath) - CmdArgs.push_back("-fno-trapping-math"); - - - if (Arg *A = Args.getLastArg(options::OPT_ffast_math, FastMathAliasOption, - options::OPT_fno_fast_math, - options::OPT_funsafe_math_optimizations, - options::OPT_fno_unsafe_math_optimizations, - options::OPT_fdenormal_fp_math_EQ)) - if (A->getOption().getID() != options::OPT_fno_fast_math && - A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations) - Args.AddLastArg(CmdArgs, options::OPT_fdenormal_fp_math_EQ); - - // Validate and pass through -fp-contract option. - if (Arg *A = Args.getLastArg(options::OPT_ffast_math, FastMathAliasOption, - options::OPT_fno_fast_math, - options::OPT_ffp_contract)) { - if (A->getOption().getID() == options::OPT_ffp_contract) { - StringRef Val = A->getValue(); - if (Val == "fast" || Val == "on" || Val == "off") { - CmdArgs.push_back(Args.MakeArgString("-ffp-contract=" + Val)); - } else { - D.Diag(diag::err_drv_unsupported_option_argument) - << A->getOption().getName() << Val; - } - } else if (A->getOption().matches(options::OPT_ffast_math) || - (OFastEnabled && A->getOption().matches(options::OPT_Ofast))) { - // If fast-math is set then set the fp-contract mode to fast. - CmdArgs.push_back(Args.MakeArgString("-ffp-contract=fast")); - } - } - - ParseMRecip(getToolChain().getDriver(), Args, CmdArgs); - - // We separately look for the '-ffast-math' and '-ffinite-math-only' flags, - // and if we find them, tell the frontend to provide the appropriate - // preprocessor macros. This is distinct from enabling any optimizations as - // these options induce language changes which must survive serialization - // and deserialization, etc. - if (Arg *A = Args.getLastArg(options::OPT_ffast_math, FastMathAliasOption, - options::OPT_fno_fast_math)) - if (!A->getOption().matches(options::OPT_fno_fast_math)) - CmdArgs.push_back("-ffast-math"); - if (Arg *A = Args.getLastArg(options::OPT_ffinite_math_only, - options::OPT_fno_fast_math)) - if (A->getOption().matches(options::OPT_ffinite_math_only)) - CmdArgs.push_back("-ffinite-math-only"); - - // Decide whether to use verbose asm. Verbose assembly is the default on - // toolchains which have the integrated assembler on by default. - bool IsIntegratedAssemblerDefault = - getToolChain().IsIntegratedAssemblerDefault(); - if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm, - IsIntegratedAssemblerDefault) || - Args.hasArg(options::OPT_dA)) - CmdArgs.push_back("-masm-verbose"); - - if (!Args.hasFlag(options::OPT_fintegrated_as, options::OPT_fno_integrated_as, - IsIntegratedAssemblerDefault)) - CmdArgs.push_back("-no-integrated-as"); - - if (Args.hasArg(options::OPT_fdebug_pass_structure)) { - CmdArgs.push_back("-mdebug-pass"); - CmdArgs.push_back("Structure"); - } - if (Args.hasArg(options::OPT_fdebug_pass_arguments)) { - CmdArgs.push_back("-mdebug-pass"); - CmdArgs.push_back("Arguments"); - } - - // Enable -mconstructor-aliases except on darwin, where we have to work around - // a linker bug (see <rdar://problem/7651567>), and CUDA device code, where - // aliases aren't supported. - if (!getToolChain().getTriple().isOSDarwin() && - !getToolChain().getTriple().isNVPTX()) - CmdArgs.push_back("-mconstructor-aliases"); - - // Darwin's kernel doesn't support guard variables; just die if we - // try to use them. - if (KernelOrKext && getToolChain().getTriple().isOSDarwin()) - CmdArgs.push_back("-fforbid-guard-variables"); - - if (Args.hasFlag(options::OPT_mms_bitfields, options::OPT_mno_ms_bitfields, - false)) { - CmdArgs.push_back("-mms-bitfields"); - } - - if (Args.hasFlag(options::OPT_mpie_copy_relocations, - options::OPT_mno_pie_copy_relocations, - false)) { - CmdArgs.push_back("-mpie-copy-relocations"); - } - - // This is a coarse approximation of what llvm-gcc actually does, both - // -fasynchronous-unwind-tables and -fnon-call-exceptions interact in more - // complicated ways. - bool AsynchronousUnwindTables = - Args.hasFlag(options::OPT_fasynchronous_unwind_tables, - options::OPT_fno_asynchronous_unwind_tables, - (getToolChain().IsUnwindTablesDefault() || - getToolChain().getSanitizerArgs().needsUnwindTables()) && - !KernelOrKext); - if (Args.hasFlag(options::OPT_funwind_tables, options::OPT_fno_unwind_tables, - AsynchronousUnwindTables)) - CmdArgs.push_back("-munwind-tables"); - - getToolChain().addClangTargetOptions(Args, CmdArgs); - - if (Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) { - CmdArgs.push_back("-mlimit-float-precision"); - CmdArgs.push_back(A->getValue()); - } - - // FIXME: Handle -mtune=. - (void)Args.hasArg(options::OPT_mtune_EQ); - - if (Arg *A = Args.getLastArg(options::OPT_mcmodel_EQ)) { - CmdArgs.push_back("-mcode-model"); - CmdArgs.push_back(A->getValue()); - } - - // Add the target cpu - std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false); - if (!CPU.empty()) { - CmdArgs.push_back("-target-cpu"); - CmdArgs.push_back(Args.MakeArgString(CPU)); - } - - if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ)) { - CmdArgs.push_back("-mfpmath"); - CmdArgs.push_back(A->getValue()); - } - - // Add the target features - getTargetFeatures(getToolChain(), Triple, Args, CmdArgs, false); - - // Add target specific flags. - switch (getToolChain().getArch()) { - default: - break; - - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: - // Use the effective triple, which takes into account the deployment target. - AddARMTargetArgs(Triple, Args, CmdArgs, KernelOrKext); - break; - - case llvm::Triple::aarch64: - case llvm::Triple::aarch64_be: - AddAArch64TargetArgs(Args, CmdArgs); - break; - - case llvm::Triple::mips: - case llvm::Triple::mipsel: - case llvm::Triple::mips64: - case llvm::Triple::mips64el: - AddMIPSTargetArgs(Args, CmdArgs); - break; - - case llvm::Triple::ppc: - case llvm::Triple::ppc64: - case llvm::Triple::ppc64le: - AddPPCTargetArgs(Args, CmdArgs); - break; - - case llvm::Triple::sparc: - case llvm::Triple::sparcel: - case llvm::Triple::sparcv9: - AddSparcTargetArgs(Args, CmdArgs); - break; - - case llvm::Triple::systemz: - AddSystemZTargetArgs(Args, CmdArgs); - break; - - case llvm::Triple::x86: - case llvm::Triple::x86_64: - AddX86TargetArgs(Args, CmdArgs); - break; - - case llvm::Triple::lanai: - AddLanaiTargetArgs(Args, CmdArgs); - break; - - case llvm::Triple::hexagon: - AddHexagonTargetArgs(Args, CmdArgs); - break; - - case llvm::Triple::wasm32: - case llvm::Triple::wasm64: - AddWebAssemblyTargetArgs(Args, CmdArgs); - break; - } - - // The 'g' groups options involve a somewhat intricate sequence of decisions - // about what to pass from the driver to the frontend, but by the time they - // reach cc1 they've been factored into three well-defined orthogonal choices: - // * what level of debug info to generate - // * what dwarf version to write - // * what debugger tuning to use - // This avoids having to monkey around further in cc1 other than to disable - // codeview if not running in a Windows environment. Perhaps even that - // decision should be made in the driver as well though. - unsigned DwarfVersion = 0; - llvm::DebuggerKind DebuggerTuning = getToolChain().getDefaultDebuggerTuning(); - // These two are potentially updated by AddClangCLArgs. - codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo; - bool EmitCodeView = false; - - // Add clang-cl arguments. - types::ID InputType = Input.getType(); - if (getToolChain().getDriver().IsCLMode()) - AddClangCLArgs(Args, InputType, CmdArgs, &DebugInfoKind, &EmitCodeView); - - // Pass the linker version in use. - if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) { - CmdArgs.push_back("-target-linker-version"); - CmdArgs.push_back(A->getValue()); - } - - if (!shouldUseLeafFramePointer(Args, getToolChain().getTriple())) - CmdArgs.push_back("-momit-leaf-frame-pointer"); - - // Explicitly error on some things we know we don't support and can't just - // ignore. - if (!Args.hasArg(options::OPT_fallow_unsupported)) { - Arg *Unsupported; - if (types::isCXX(InputType) && getToolChain().getTriple().isOSDarwin() && - getToolChain().getArch() == llvm::Triple::x86) { - if ((Unsupported = Args.getLastArg(options::OPT_fapple_kext)) || - (Unsupported = Args.getLastArg(options::OPT_mkernel))) - D.Diag(diag::err_drv_clang_unsupported_opt_cxx_darwin_i386) - << Unsupported->getOption().getName(); - } - } - - Args.AddAllArgs(CmdArgs, options::OPT_v); - Args.AddLastArg(CmdArgs, options::OPT_H); - if (D.CCPrintHeaders && !D.CCGenDiagnostics) { - CmdArgs.push_back("-header-include-file"); - CmdArgs.push_back(D.CCPrintHeadersFilename ? D.CCPrintHeadersFilename - : "-"); - } - Args.AddLastArg(CmdArgs, options::OPT_P); - Args.AddLastArg(CmdArgs, options::OPT_print_ivar_layout); - - if (D.CCLogDiagnostics && !D.CCGenDiagnostics) { - CmdArgs.push_back("-diagnostic-log-file"); - CmdArgs.push_back(D.CCLogDiagnosticsFilename ? D.CCLogDiagnosticsFilename - : "-"); - } - - bool splitDwarfInlining = - Args.hasFlag(options::OPT_fsplit_dwarf_inlining, - options::OPT_fno_split_dwarf_inlining, true); - - Args.ClaimAllArgs(options::OPT_g_Group); - Arg *SplitDwarfArg = Args.getLastArg(options::OPT_gsplit_dwarf); - if (Arg *A = Args.getLastArg(options::OPT_g_Group)) { - // If the last option explicitly specified a debug-info level, use it. - if (A->getOption().matches(options::OPT_gN_Group)) { - DebugInfoKind = DebugLevelToInfoKind(*A); - // If you say "-gsplit-dwarf -gline-tables-only", -gsplit-dwarf loses. - // But -gsplit-dwarf is not a g_group option, hence we have to check the - // order explicitly. (If -gsplit-dwarf wins, we fix DebugInfoKind later.) - // This gets a bit more complicated if you've disabled inline info in the - // skeleton CUs (splitDwarfInlining) - then there's value in composing - // split-dwarf and line-tables-only, so let those compose naturally in - // that case. - // And if you just turned off debug info, (-gsplit-dwarf -g0) - do that. - if (SplitDwarfArg) { - if (A->getIndex() > SplitDwarfArg->getIndex()) { - if (DebugInfoKind == codegenoptions::NoDebugInfo || - (DebugInfoKind == codegenoptions::DebugLineTablesOnly && - splitDwarfInlining)) - SplitDwarfArg = nullptr; - } else if (splitDwarfInlining) - DebugInfoKind = codegenoptions::NoDebugInfo; - } - } else - // For any other 'g' option, use Limited. - DebugInfoKind = codegenoptions::LimitedDebugInfo; - } - - // If a debugger tuning argument appeared, remember it. - if (Arg *A = Args.getLastArg(options::OPT_gTune_Group, - options::OPT_ggdbN_Group)) { - if (A->getOption().matches(options::OPT_glldb)) - DebuggerTuning = llvm::DebuggerKind::LLDB; - else if (A->getOption().matches(options::OPT_gsce)) - DebuggerTuning = llvm::DebuggerKind::SCE; - else - DebuggerTuning = llvm::DebuggerKind::GDB; - } - - // If a -gdwarf argument appeared, remember it. - if (Arg *A = Args.getLastArg(options::OPT_gdwarf_2, options::OPT_gdwarf_3, - options::OPT_gdwarf_4, options::OPT_gdwarf_5)) - DwarfVersion = DwarfVersionNum(A->getSpelling()); - - // Forward -gcodeview. EmitCodeView might have been set by CL-compatibility - // argument parsing. - if (Args.hasArg(options::OPT_gcodeview) || EmitCodeView) { - // DwarfVersion remains at 0 if no explicit choice was made. - CmdArgs.push_back("-gcodeview"); - } else if (DwarfVersion == 0 && - DebugInfoKind != codegenoptions::NoDebugInfo) { - DwarfVersion = getToolChain().GetDefaultDwarfVersion(); - } - - // We ignore flags -gstrict-dwarf and -grecord-gcc-switches for now. - Args.ClaimAllArgs(options::OPT_g_flags_Group); - - // Column info is included by default for everything except PS4 and CodeView. - // Clang doesn't track end columns, just starting columns, which, in theory, - // is fine for CodeView (and PDB). In practice, however, the Microsoft - // debuggers don't handle missing end columns well, so it's better not to - // include any column info. - if (Args.hasFlag(options::OPT_gcolumn_info, options::OPT_gno_column_info, - /*Default=*/ !IsPS4CPU && !(IsWindowsMSVC && EmitCodeView))) - CmdArgs.push_back("-dwarf-column-info"); - - // FIXME: Move backend command line options to the module. - // If -gline-tables-only is the last option it wins. - if (DebugInfoKind != codegenoptions::DebugLineTablesOnly && - Args.hasArg(options::OPT_gmodules)) { - DebugInfoKind = codegenoptions::LimitedDebugInfo; - CmdArgs.push_back("-dwarf-ext-refs"); - CmdArgs.push_back("-fmodule-format=obj"); - } - - // -gsplit-dwarf should turn on -g and enable the backend dwarf - // splitting and extraction. - // FIXME: Currently only works on Linux. - if (getToolChain().getTriple().isOSLinux() && SplitDwarfArg) { - if (!splitDwarfInlining) - CmdArgs.push_back("-fno-split-dwarf-inlining"); - if (DebugInfoKind == codegenoptions::NoDebugInfo) - DebugInfoKind = codegenoptions::LimitedDebugInfo; - CmdArgs.push_back("-backend-option"); - CmdArgs.push_back("-split-dwarf=Enable"); - } - - // After we've dealt with all combinations of things that could - // make DebugInfoKind be other than None or DebugLineTablesOnly, - // figure out if we need to "upgrade" it to standalone debug info. - // We parse these two '-f' options whether or not they will be used, - // to claim them even if you wrote "-fstandalone-debug -gline-tables-only" - bool NeedFullDebug = Args.hasFlag(options::OPT_fstandalone_debug, - options::OPT_fno_standalone_debug, - getToolChain().GetDefaultStandaloneDebug()); - if (DebugInfoKind == codegenoptions::LimitedDebugInfo && NeedFullDebug) - DebugInfoKind = codegenoptions::FullDebugInfo; - RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DwarfVersion, - DebuggerTuning); - - // -ggnu-pubnames turns on gnu style pubnames in the backend. - if (Args.hasArg(options::OPT_ggnu_pubnames)) { - CmdArgs.push_back("-backend-option"); - CmdArgs.push_back("-generate-gnu-dwarf-pub-sections"); - } - - // -gdwarf-aranges turns on the emission of the aranges section in the - // backend. - // Always enabled on the PS4. - if (Args.hasArg(options::OPT_gdwarf_aranges) || IsPS4CPU) { - CmdArgs.push_back("-backend-option"); - CmdArgs.push_back("-generate-arange-section"); - } - - if (Args.hasFlag(options::OPT_fdebug_types_section, - options::OPT_fno_debug_types_section, false)) { - CmdArgs.push_back("-backend-option"); - CmdArgs.push_back("-generate-type-units"); - } - - bool UseSeparateSections = isUseSeparateSections(Triple); - - if (Args.hasFlag(options::OPT_ffunction_sections, - options::OPT_fno_function_sections, UseSeparateSections)) { - CmdArgs.push_back("-ffunction-sections"); - } - - if (Args.hasFlag(options::OPT_fdata_sections, options::OPT_fno_data_sections, - UseSeparateSections)) { - CmdArgs.push_back("-fdata-sections"); - } - - if (!Args.hasFlag(options::OPT_funique_section_names, - options::OPT_fno_unique_section_names, true)) - CmdArgs.push_back("-fno-unique-section-names"); - - Args.AddAllArgs(CmdArgs, options::OPT_finstrument_functions); - - if (Args.hasFlag(options::OPT_fxray_instrument, - options::OPT_fnoxray_instrument, false)) { - const char *const XRayInstrumentOption = "-fxray-instrument"; - if (Triple.getOS() == llvm::Triple::Linux) - switch (Triple.getArch()) { - case llvm::Triple::x86_64: - case llvm::Triple::arm: - case llvm::Triple::aarch64: - // Supported. - break; - default: - D.Diag(diag::err_drv_clang_unsupported) - << (std::string(XRayInstrumentOption) + " on " + Triple.str()); - } - else - D.Diag(diag::err_drv_clang_unsupported) - << (std::string(XRayInstrumentOption) + " on non-Linux target OS"); - CmdArgs.push_back(XRayInstrumentOption); - if (const Arg *A = - Args.getLastArg(options::OPT_fxray_instruction_threshold_, - options::OPT_fxray_instruction_threshold_EQ)) { - CmdArgs.push_back("-fxray-instruction-threshold"); - CmdArgs.push_back(A->getValue()); - } - } - - addPGOAndCoverageFlags(C, D, Output, Args, CmdArgs); - - // Add runtime flag for PS4 when PGO or Coverage are enabled. - if (getToolChain().getTriple().isPS4CPU()) - addPS4ProfileRTArgs(getToolChain(), Args, CmdArgs); - - // Pass options for controlling the default header search paths. - if (Args.hasArg(options::OPT_nostdinc)) { - CmdArgs.push_back("-nostdsysteminc"); - CmdArgs.push_back("-nobuiltininc"); - } else { - if (Args.hasArg(options::OPT_nostdlibinc)) - CmdArgs.push_back("-nostdsysteminc"); - Args.AddLastArg(CmdArgs, options::OPT_nostdincxx); - Args.AddLastArg(CmdArgs, options::OPT_nobuiltininc); - } - - // Pass the path to compiler resource files. - CmdArgs.push_back("-resource-dir"); - CmdArgs.push_back(D.ResourceDir.c_str()); - - Args.AddLastArg(CmdArgs, options::OPT_working_directory); - - bool ARCMTEnabled = false; - if (!Args.hasArg(options::OPT_fno_objc_arc, options::OPT_fobjc_arc)) { - if (const Arg *A = Args.getLastArg(options::OPT_ccc_arcmt_check, - options::OPT_ccc_arcmt_modify, - options::OPT_ccc_arcmt_migrate)) { - ARCMTEnabled = true; - switch (A->getOption().getID()) { - default: - llvm_unreachable("missed a case"); - case options::OPT_ccc_arcmt_check: - CmdArgs.push_back("-arcmt-check"); - break; - case options::OPT_ccc_arcmt_modify: - CmdArgs.push_back("-arcmt-modify"); - break; - case options::OPT_ccc_arcmt_migrate: - CmdArgs.push_back("-arcmt-migrate"); - CmdArgs.push_back("-mt-migrate-directory"); - CmdArgs.push_back(A->getValue()); - - Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_report_output); - Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_emit_arc_errors); - break; - } - } - } else { - Args.ClaimAllArgs(options::OPT_ccc_arcmt_check); - Args.ClaimAllArgs(options::OPT_ccc_arcmt_modify); - Args.ClaimAllArgs(options::OPT_ccc_arcmt_migrate); - } - - if (const Arg *A = Args.getLastArg(options::OPT_ccc_objcmt_migrate)) { - if (ARCMTEnabled) { - D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) - << "-ccc-arcmt-migrate"; - } - CmdArgs.push_back("-mt-migrate-directory"); - CmdArgs.push_back(A->getValue()); - - if (!Args.hasArg(options::OPT_objcmt_migrate_literals, - options::OPT_objcmt_migrate_subscripting, - options::OPT_objcmt_migrate_property)) { - // None specified, means enable them all. - CmdArgs.push_back("-objcmt-migrate-literals"); - CmdArgs.push_back("-objcmt-migrate-subscripting"); - CmdArgs.push_back("-objcmt-migrate-property"); - } else { - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property); - } - } else { - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_all); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readonly_property); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readwrite_property); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property_dot_syntax); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_annotation); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_instancetype); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_nsmacros); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_protocol_conformance); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_atomic_property); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_returns_innerpointer_property); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_ns_nonatomic_iosonly); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_designated_init); - Args.AddLastArg(CmdArgs, options::OPT_objcmt_whitelist_dir_path); - } - - // Add preprocessing options like -I, -D, etc. if we are using the - // preprocessor. - // - // FIXME: Support -fpreprocessed - if (types::getPreprocessedType(InputType) != types::TY_INVALID) - AddPreprocessingOptions(C, JA, D, Args, CmdArgs, Output, Inputs); - - // Don't warn about "clang -c -DPIC -fPIC test.i" because libtool.m4 assumes - // that "The compiler can only warn and ignore the option if not recognized". - // When building with ccache, it will pass -D options to clang even on - // preprocessed inputs and configure concludes that -fPIC is not supported. - Args.ClaimAllArgs(options::OPT_D); - - // Manually translate -O4 to -O3; let clang reject others. - if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { - if (A->getOption().matches(options::OPT_O4)) { - CmdArgs.push_back("-O3"); - D.Diag(diag::warn_O4_is_O3); - } else { - A->render(Args, CmdArgs); - } - } - - // Warn about ignored options to clang. - for (const Arg *A : - Args.filtered(options::OPT_clang_ignored_gcc_optimization_f_Group)) { - D.Diag(diag::warn_ignored_gcc_optimization) << A->getAsString(Args); - A->claim(); - } - - claimNoWarnArgs(Args); - - Args.AddAllArgs(CmdArgs, options::OPT_R_Group); - - Args.AddAllArgs(CmdArgs, options::OPT_W_Group); - if (Args.hasFlag(options::OPT_pedantic, options::OPT_no_pedantic, false)) - CmdArgs.push_back("-pedantic"); - Args.AddLastArg(CmdArgs, options::OPT_pedantic_errors); - Args.AddLastArg(CmdArgs, options::OPT_w); - - // Handle -{std, ansi, trigraphs} -- take the last of -{std, ansi} - // (-ansi is equivalent to -std=c89 or -std=c++98). - // - // If a std is supplied, only add -trigraphs if it follows the - // option. - bool ImplyVCPPCXXVer = false; - if (Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi)) { - if (Std->getOption().matches(options::OPT_ansi)) - if (types::isCXX(InputType)) - CmdArgs.push_back("-std=c++98"); - else - CmdArgs.push_back("-std=c89"); - else - Std->render(Args, CmdArgs); - - // If -f(no-)trigraphs appears after the language standard flag, honor it. - if (Arg *A = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi, - options::OPT_ftrigraphs, - options::OPT_fno_trigraphs)) - if (A != Std) - A->render(Args, CmdArgs); - } else { - // Honor -std-default. - // - // FIXME: Clang doesn't correctly handle -std= when the input language - // doesn't match. For the time being just ignore this for C++ inputs; - // eventually we want to do all the standard defaulting here instead of - // splitting it between the driver and clang -cc1. - if (!types::isCXX(InputType)) - Args.AddAllArgsTranslated(CmdArgs, options::OPT_std_default_EQ, "-std=", - /*Joined=*/true); - else if (IsWindowsMSVC) - ImplyVCPPCXXVer = true; - - Args.AddLastArg(CmdArgs, options::OPT_ftrigraphs, - options::OPT_fno_trigraphs); - } - - // GCC's behavior for -Wwrite-strings is a bit strange: - // * In C, this "warning flag" changes the types of string literals from - // 'char[N]' to 'const char[N]', and thus triggers an unrelated warning - // for the discarded qualifier. - // * In C++, this is just a normal warning flag. - // - // Implementing this warning correctly in C is hard, so we follow GCC's - // behavior for now. FIXME: Directly diagnose uses of a string literal as - // a non-const char* in C, rather than using this crude hack. - if (!types::isCXX(InputType)) { - // FIXME: This should behave just like a warning flag, and thus should also - // respect -Weverything, -Wno-everything, -Werror=write-strings, and so on. - Arg *WriteStrings = - Args.getLastArg(options::OPT_Wwrite_strings, - options::OPT_Wno_write_strings, options::OPT_w); - if (WriteStrings && - WriteStrings->getOption().matches(options::OPT_Wwrite_strings)) - CmdArgs.push_back("-fconst-strings"); - } - - // GCC provides a macro definition '__DEPRECATED' when -Wdeprecated is active - // during C++ compilation, which it is by default. GCC keeps this define even - // in the presence of '-w', match this behavior bug-for-bug. - if (types::isCXX(InputType) && - Args.hasFlag(options::OPT_Wdeprecated, options::OPT_Wno_deprecated, - true)) { - CmdArgs.push_back("-fdeprecated-macro"); - } - - // Translate GCC's misnamer '-fasm' arguments to '-fgnu-keywords'. - if (Arg *Asm = Args.getLastArg(options::OPT_fasm, options::OPT_fno_asm)) { - if (Asm->getOption().matches(options::OPT_fasm)) - CmdArgs.push_back("-fgnu-keywords"); - else - CmdArgs.push_back("-fno-gnu-keywords"); - } - - if (ShouldDisableDwarfDirectory(Args, getToolChain())) - CmdArgs.push_back("-fno-dwarf-directory-asm"); - - if (ShouldDisableAutolink(Args, getToolChain())) - CmdArgs.push_back("-fno-autolink"); - - // Add in -fdebug-compilation-dir if necessary. - addDebugCompDirArg(Args, CmdArgs); - - for (const Arg *A : Args.filtered(options::OPT_fdebug_prefix_map_EQ)) { - StringRef Map = A->getValue(); - if (Map.find('=') == StringRef::npos) - D.Diag(diag::err_drv_invalid_argument_to_fdebug_prefix_map) << Map; - else - CmdArgs.push_back(Args.MakeArgString("-fdebug-prefix-map=" + Map)); - A->claim(); - } - - if (Arg *A = Args.getLastArg(options::OPT_ftemplate_depth_, - options::OPT_ftemplate_depth_EQ)) { - CmdArgs.push_back("-ftemplate-depth"); - CmdArgs.push_back(A->getValue()); - } - - if (Arg *A = Args.getLastArg(options::OPT_foperator_arrow_depth_EQ)) { - CmdArgs.push_back("-foperator-arrow-depth"); - CmdArgs.push_back(A->getValue()); - } - - if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_depth_EQ)) { - CmdArgs.push_back("-fconstexpr-depth"); - CmdArgs.push_back(A->getValue()); - } - - if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_steps_EQ)) { - CmdArgs.push_back("-fconstexpr-steps"); - CmdArgs.push_back(A->getValue()); - } - - if (Arg *A = Args.getLastArg(options::OPT_fbracket_depth_EQ)) { - CmdArgs.push_back("-fbracket-depth"); - CmdArgs.push_back(A->getValue()); - } - - if (Arg *A = Args.getLastArg(options::OPT_Wlarge_by_value_copy_EQ, - options::OPT_Wlarge_by_value_copy_def)) { - if (A->getNumValues()) { - StringRef bytes = A->getValue(); - CmdArgs.push_back(Args.MakeArgString("-Wlarge-by-value-copy=" + bytes)); - } else - CmdArgs.push_back("-Wlarge-by-value-copy=64"); // default value - } - - if (Args.hasArg(options::OPT_relocatable_pch)) - CmdArgs.push_back("-relocatable-pch"); - - if (Arg *A = Args.getLastArg(options::OPT_fconstant_string_class_EQ)) { - CmdArgs.push_back("-fconstant-string-class"); - CmdArgs.push_back(A->getValue()); - } - - if (Arg *A = Args.getLastArg(options::OPT_ftabstop_EQ)) { - CmdArgs.push_back("-ftabstop"); - CmdArgs.push_back(A->getValue()); - } - - CmdArgs.push_back("-ferror-limit"); - if (Arg *A = Args.getLastArg(options::OPT_ferror_limit_EQ)) - CmdArgs.push_back(A->getValue()); - else - CmdArgs.push_back("19"); - - if (Arg *A = Args.getLastArg(options::OPT_fmacro_backtrace_limit_EQ)) { - CmdArgs.push_back("-fmacro-backtrace-limit"); - CmdArgs.push_back(A->getValue()); - } - - if (Arg *A = Args.getLastArg(options::OPT_ftemplate_backtrace_limit_EQ)) { - CmdArgs.push_back("-ftemplate-backtrace-limit"); - CmdArgs.push_back(A->getValue()); - } - - if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_backtrace_limit_EQ)) { - CmdArgs.push_back("-fconstexpr-backtrace-limit"); - CmdArgs.push_back(A->getValue()); - } - - if (Arg *A = Args.getLastArg(options::OPT_fspell_checking_limit_EQ)) { - CmdArgs.push_back("-fspell-checking-limit"); - CmdArgs.push_back(A->getValue()); - } - - // Pass -fmessage-length=. - CmdArgs.push_back("-fmessage-length"); - if (Arg *A = Args.getLastArg(options::OPT_fmessage_length_EQ)) { - CmdArgs.push_back(A->getValue()); - } else { - // If -fmessage-length=N was not specified, determine whether this is a - // terminal and, if so, implicitly define -fmessage-length appropriately. - unsigned N = llvm::sys::Process::StandardErrColumns(); - CmdArgs.push_back(Args.MakeArgString(Twine(N))); - } - - // -fvisibility= and -fvisibility-ms-compat are of a piece. - if (const Arg *A = Args.getLastArg(options::OPT_fvisibility_EQ, - options::OPT_fvisibility_ms_compat)) { - if (A->getOption().matches(options::OPT_fvisibility_EQ)) { - CmdArgs.push_back("-fvisibility"); - CmdArgs.push_back(A->getValue()); - } else { - assert(A->getOption().matches(options::OPT_fvisibility_ms_compat)); - CmdArgs.push_back("-fvisibility"); - CmdArgs.push_back("hidden"); - CmdArgs.push_back("-ftype-visibility"); - CmdArgs.push_back("default"); - } - } - - Args.AddLastArg(CmdArgs, options::OPT_fvisibility_inlines_hidden); - - Args.AddLastArg(CmdArgs, options::OPT_ftlsmodel_EQ); - - // -fhosted is default. - bool IsHosted = true; - if (Args.hasFlag(options::OPT_ffreestanding, options::OPT_fhosted, false) || - KernelOrKext) { - CmdArgs.push_back("-ffreestanding"); - IsHosted = false; - } - - // Forward -f (flag) options which we can pass directly. - Args.AddLastArg(CmdArgs, options::OPT_femit_all_decls); - Args.AddLastArg(CmdArgs, options::OPT_fheinous_gnu_extensions); - Args.AddLastArg(CmdArgs, options::OPT_fno_operator_names); - // Emulated TLS is enabled by default on Android, and can be enabled manually - // with -femulated-tls. - bool EmulatedTLSDefault = Triple.isAndroid() || Triple.isWindowsCygwinEnvironment(); - if (Args.hasFlag(options::OPT_femulated_tls, options::OPT_fno_emulated_tls, - EmulatedTLSDefault)) - CmdArgs.push_back("-femulated-tls"); - // AltiVec-like language extensions aren't relevant for assembling. - if (!isa<PreprocessJobAction>(JA) || Output.getType() != types::TY_PP_Asm) { - Args.AddLastArg(CmdArgs, options::OPT_faltivec); - Args.AddLastArg(CmdArgs, options::OPT_fzvector); - } - Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_show_template_tree); - Args.AddLastArg(CmdArgs, options::OPT_fno_elide_type); - - // Forward flags for OpenMP. We don't do this if the current action is an - // device offloading action other than OpenMP. - if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, - options::OPT_fno_openmp, false) && - (JA.isDeviceOffloading(Action::OFK_None) || - JA.isDeviceOffloading(Action::OFK_OpenMP))) { - switch (getToolChain().getDriver().getOpenMPRuntime(Args)) { - case Driver::OMPRT_OMP: - case Driver::OMPRT_IOMP5: - // Clang can generate useful OpenMP code for these two runtime libraries. - CmdArgs.push_back("-fopenmp"); - - // If no option regarding the use of TLS in OpenMP codegeneration is - // given, decide a default based on the target. Otherwise rely on the - // options and pass the right information to the frontend. - if (!Args.hasFlag(options::OPT_fopenmp_use_tls, - options::OPT_fnoopenmp_use_tls, /*Default=*/true)) - CmdArgs.push_back("-fnoopenmp-use-tls"); - Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ); - break; - default: - // By default, if Clang doesn't know how to generate useful OpenMP code - // for a specific runtime library, we just don't pass the '-fopenmp' flag - // down to the actual compilation. - // FIXME: It would be better to have a mode which *only* omits IR - // generation based on the OpenMP support so that we get consistent - // semantic analysis, etc. - break; - } - } - - const SanitizerArgs &Sanitize = getToolChain().getSanitizerArgs(); - Sanitize.addArgs(getToolChain(), Args, CmdArgs, InputType); - - // Report an error for -faltivec on anything other than PowerPC. - if (const Arg *A = Args.getLastArg(options::OPT_faltivec)) { - const llvm::Triple::ArchType Arch = getToolChain().getArch(); - if (!(Arch == llvm::Triple::ppc || Arch == llvm::Triple::ppc64 || - Arch == llvm::Triple::ppc64le)) - D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args) - << "ppc/ppc64/ppc64le"; - } - - // -fzvector is incompatible with -faltivec. - if (Arg *A = Args.getLastArg(options::OPT_fzvector)) - if (Args.hasArg(options::OPT_faltivec)) - D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) - << "-faltivec"; - - if (getToolChain().SupportsProfiling()) - Args.AddLastArg(CmdArgs, options::OPT_pg); - - // -flax-vector-conversions is default. - if (!Args.hasFlag(options::OPT_flax_vector_conversions, - options::OPT_fno_lax_vector_conversions)) - CmdArgs.push_back("-fno-lax-vector-conversions"); - - if (Args.getLastArg(options::OPT_fapple_kext) || - (Args.hasArg(options::OPT_mkernel) && types::isCXX(InputType))) - CmdArgs.push_back("-fapple-kext"); - - Args.AddLastArg(CmdArgs, options::OPT_fobjc_sender_dependent_dispatch); - Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_print_source_range_info); - Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_parseable_fixits); - Args.AddLastArg(CmdArgs, options::OPT_ftime_report); - Args.AddLastArg(CmdArgs, options::OPT_ftrapv); - - if (Arg *A = Args.getLastArg(options::OPT_ftrapv_handler_EQ)) { - CmdArgs.push_back("-ftrapv-handler"); - CmdArgs.push_back(A->getValue()); - } - - Args.AddLastArg(CmdArgs, options::OPT_ftrap_function_EQ); - - // -fno-strict-overflow implies -fwrapv if it isn't disabled, but - // -fstrict-overflow won't turn off an explicitly enabled -fwrapv. - if (Arg *A = Args.getLastArg(options::OPT_fwrapv, options::OPT_fno_wrapv)) { - if (A->getOption().matches(options::OPT_fwrapv)) - CmdArgs.push_back("-fwrapv"); - } else if (Arg *A = Args.getLastArg(options::OPT_fstrict_overflow, - options::OPT_fno_strict_overflow)) { - if (A->getOption().matches(options::OPT_fno_strict_overflow)) - CmdArgs.push_back("-fwrapv"); - } - - if (Arg *A = Args.getLastArg(options::OPT_freroll_loops, - options::OPT_fno_reroll_loops)) - if (A->getOption().matches(options::OPT_freroll_loops)) - CmdArgs.push_back("-freroll-loops"); - - Args.AddLastArg(CmdArgs, options::OPT_fwritable_strings); - Args.AddLastArg(CmdArgs, options::OPT_funroll_loops, - options::OPT_fno_unroll_loops); - - Args.AddLastArg(CmdArgs, options::OPT_pthread); - - // -stack-protector=0 is default. - unsigned StackProtectorLevel = 0; - if (Arg *A = Args.getLastArg(options::OPT_fno_stack_protector, - options::OPT_fstack_protector_all, - options::OPT_fstack_protector_strong, - options::OPT_fstack_protector)) { - if (A->getOption().matches(options::OPT_fstack_protector)) { - StackProtectorLevel = std::max<unsigned>( - LangOptions::SSPOn, - getToolChain().GetDefaultStackProtectorLevel(KernelOrKext)); - } else if (A->getOption().matches(options::OPT_fstack_protector_strong)) - StackProtectorLevel = LangOptions::SSPStrong; - else if (A->getOption().matches(options::OPT_fstack_protector_all)) - StackProtectorLevel = LangOptions::SSPReq; - } else { - StackProtectorLevel = - getToolChain().GetDefaultStackProtectorLevel(KernelOrKext); - // Only use a default stack protector on Darwin in case -ffreestanding - // is not specified. - if (Triple.isOSDarwin() && !IsHosted) - StackProtectorLevel = 0; - } - if (StackProtectorLevel) { - CmdArgs.push_back("-stack-protector"); - CmdArgs.push_back(Args.MakeArgString(Twine(StackProtectorLevel))); - } - - // --param ssp-buffer-size= - for (const Arg *A : Args.filtered(options::OPT__param)) { - StringRef Str(A->getValue()); - if (Str.startswith("ssp-buffer-size=")) { - if (StackProtectorLevel) { - CmdArgs.push_back("-stack-protector-buffer-size"); - // FIXME: Verify the argument is a valid integer. - CmdArgs.push_back(Args.MakeArgString(Str.drop_front(16))); - } - A->claim(); - } - } - - // Translate -mstackrealign - if (Args.hasFlag(options::OPT_mstackrealign, options::OPT_mno_stackrealign, - false)) - CmdArgs.push_back(Args.MakeArgString("-mstackrealign")); - - if (Args.hasArg(options::OPT_mstack_alignment)) { - StringRef alignment = Args.getLastArgValue(options::OPT_mstack_alignment); - CmdArgs.push_back(Args.MakeArgString("-mstack-alignment=" + alignment)); - } - - if (Args.hasArg(options::OPT_mstack_probe_size)) { - StringRef Size = Args.getLastArgValue(options::OPT_mstack_probe_size); - - if (!Size.empty()) - CmdArgs.push_back(Args.MakeArgString("-mstack-probe-size=" + Size)); - else - CmdArgs.push_back("-mstack-probe-size=0"); - } - - switch (getToolChain().getArch()) { - case llvm::Triple::aarch64: - case llvm::Triple::aarch64_be: - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: - CmdArgs.push_back("-fallow-half-arguments-and-returns"); - break; - - default: - break; - } - - if (Arg *A = Args.getLastArg(options::OPT_mrestrict_it, - options::OPT_mno_restrict_it)) { - if (A->getOption().matches(options::OPT_mrestrict_it)) { - CmdArgs.push_back("-backend-option"); - CmdArgs.push_back("-arm-restrict-it"); - } else { - CmdArgs.push_back("-backend-option"); - CmdArgs.push_back("-arm-no-restrict-it"); - } - } else if (Triple.isOSWindows() && - (Triple.getArch() == llvm::Triple::arm || - Triple.getArch() == llvm::Triple::thumb)) { - // Windows on ARM expects restricted IT blocks - CmdArgs.push_back("-backend-option"); - CmdArgs.push_back("-arm-restrict-it"); - } - - // Forward -cl options to -cc1 - if (Args.getLastArg(options::OPT_cl_opt_disable)) { - CmdArgs.push_back("-cl-opt-disable"); - } - if (Args.getLastArg(options::OPT_cl_strict_aliasing)) { - CmdArgs.push_back("-cl-strict-aliasing"); - } - if (Args.getLastArg(options::OPT_cl_single_precision_constant)) { - CmdArgs.push_back("-cl-single-precision-constant"); - } - if (Args.getLastArg(options::OPT_cl_finite_math_only)) { - CmdArgs.push_back("-cl-finite-math-only"); - } - if (Args.getLastArg(options::OPT_cl_kernel_arg_info)) { - CmdArgs.push_back("-cl-kernel-arg-info"); - } - if (Args.getLastArg(options::OPT_cl_unsafe_math_optimizations)) { - CmdArgs.push_back("-cl-unsafe-math-optimizations"); - } - if (Args.getLastArg(options::OPT_cl_fast_relaxed_math)) { - CmdArgs.push_back("-cl-fast-relaxed-math"); - } - if (Args.getLastArg(options::OPT_cl_mad_enable)) { - CmdArgs.push_back("-cl-mad-enable"); - } - if (Args.getLastArg(options::OPT_cl_no_signed_zeros)) { - CmdArgs.push_back("-cl-no-signed-zeros"); - } - if (Arg *A = Args.getLastArg(options::OPT_cl_std_EQ)) { - std::string CLStdStr = "-cl-std="; - CLStdStr += A->getValue(); - CmdArgs.push_back(Args.MakeArgString(CLStdStr)); - } - if (Args.getLastArg(options::OPT_cl_denorms_are_zero)) { - CmdArgs.push_back("-cl-denorms-are-zero"); - } - if (Args.getLastArg(options::OPT_cl_fp32_correctly_rounded_divide_sqrt)) { - CmdArgs.push_back("-cl-fp32-correctly-rounded-divide-sqrt"); - } - - // Forward -f options with positive and negative forms; we translate - // these by hand. - if (Arg *A = Args.getLastArg(options::OPT_fprofile_sample_use_EQ)) { - StringRef fname = A->getValue(); - if (!llvm::sys::fs::exists(fname)) - D.Diag(diag::err_drv_no_such_file) << fname; - else - A->render(Args, CmdArgs); - } - - // -fbuiltin is default unless -mkernel is used. - bool UseBuiltins = - Args.hasFlag(options::OPT_fbuiltin, options::OPT_fno_builtin, - !Args.hasArg(options::OPT_mkernel)); - if (!UseBuiltins) - CmdArgs.push_back("-fno-builtin"); - - // -ffreestanding implies -fno-builtin. - if (Args.hasArg(options::OPT_ffreestanding)) - UseBuiltins = false; - - // Process the -fno-builtin-* options. - for (const auto &Arg : Args) { - const Option &O = Arg->getOption(); - if (!O.matches(options::OPT_fno_builtin_)) - continue; - - Arg->claim(); - // If -fno-builtin is specified, then there's no need to pass the option to - // the frontend. - if (!UseBuiltins) - continue; - - StringRef FuncName = Arg->getValue(); - CmdArgs.push_back(Args.MakeArgString("-fno-builtin-" + FuncName)); - } - - if (!Args.hasFlag(options::OPT_fassume_sane_operator_new, - options::OPT_fno_assume_sane_operator_new)) - CmdArgs.push_back("-fno-assume-sane-operator-new"); - - // -fblocks=0 is default. - if (Args.hasFlag(options::OPT_fblocks, options::OPT_fno_blocks, - getToolChain().IsBlocksDefault()) || - (Args.hasArg(options::OPT_fgnu_runtime) && - Args.hasArg(options::OPT_fobjc_nonfragile_abi) && - !Args.hasArg(options::OPT_fno_blocks))) { - CmdArgs.push_back("-fblocks"); - - if (!Args.hasArg(options::OPT_fgnu_runtime) && - !getToolChain().hasBlocksRuntime()) - CmdArgs.push_back("-fblocks-runtime-optional"); - } - - if (Args.hasFlag(options::OPT_fcoroutines_ts, options::OPT_fno_coroutines_ts, - false) && - types::isCXX(InputType)) { - CmdArgs.push_back("-fcoroutines-ts"); - } - - // -fmodules enables the use of precompiled modules (off by default). - // Users can pass -fno-cxx-modules to turn off modules support for - // C++/Objective-C++ programs. - bool HaveClangModules = false; - if (Args.hasFlag(options::OPT_fmodules, options::OPT_fno_modules, false)) { - bool AllowedInCXX = Args.hasFlag(options::OPT_fcxx_modules, - options::OPT_fno_cxx_modules, true); - if (AllowedInCXX || !types::isCXX(InputType)) { - CmdArgs.push_back("-fmodules"); - HaveClangModules = true; - } - } - - bool HaveAnyModules = HaveClangModules; - if (Args.hasArg(options::OPT_fmodules_ts)) { - CmdArgs.push_back("-fmodules-ts"); - HaveAnyModules = true; - } - - // -fmodule-maps enables implicit reading of module map files. By default, - // this is enabled if we are using Clang's flavor of precompiled modules. - if (Args.hasFlag(options::OPT_fimplicit_module_maps, - options::OPT_fno_implicit_module_maps, HaveClangModules)) { - CmdArgs.push_back("-fimplicit-module-maps"); - } - - // -fmodules-decluse checks that modules used are declared so (off by - // default). - if (Args.hasFlag(options::OPT_fmodules_decluse, - options::OPT_fno_modules_decluse, false)) { - CmdArgs.push_back("-fmodules-decluse"); - } - - // -fmodules-strict-decluse is like -fmodule-decluse, but also checks that - // all #included headers are part of modules. - if (Args.hasFlag(options::OPT_fmodules_strict_decluse, - options::OPT_fno_modules_strict_decluse, false)) { - CmdArgs.push_back("-fmodules-strict-decluse"); - } - - // -fno-implicit-modules turns off implicitly compiling modules on demand. - if (!Args.hasFlag(options::OPT_fimplicit_modules, - options::OPT_fno_implicit_modules, HaveClangModules)) { - if (HaveAnyModules) - CmdArgs.push_back("-fno-implicit-modules"); - } else if (HaveAnyModules) { - // -fmodule-cache-path specifies where our implicitly-built module files - // should be written. - SmallString<128> Path; - if (Arg *A = Args.getLastArg(options::OPT_fmodules_cache_path)) - Path = A->getValue(); - if (C.isForDiagnostics()) { - // When generating crash reports, we want to emit the modules along with - // the reproduction sources, so we ignore any provided module path. - Path = Output.getFilename(); - llvm::sys::path::replace_extension(Path, ".cache"); - llvm::sys::path::append(Path, "modules"); - } else if (Path.empty()) { - // No module path was provided: use the default. - llvm::sys::path::system_temp_directory(/*erasedOnReboot=*/false, Path); - llvm::sys::path::append(Path, "org.llvm.clang."); - appendUserToPath(Path); - llvm::sys::path::append(Path, "ModuleCache"); - } - const char Arg[] = "-fmodules-cache-path="; - Path.insert(Path.begin(), Arg, Arg + strlen(Arg)); - CmdArgs.push_back(Args.MakeArgString(Path)); - } - - if (HaveAnyModules) { - // -fprebuilt-module-path specifies where to load the prebuilt module files. - for (const Arg *A : Args.filtered(options::OPT_fprebuilt_module_path)) - CmdArgs.push_back(Args.MakeArgString( - std::string("-fprebuilt-module-path=") + A->getValue())); - } - - // -fmodule-name specifies the module that is currently being built (or - // used for header checking by -fmodule-maps). - Args.AddLastArg(CmdArgs, options::OPT_fmodule_name_EQ); - - // -fmodule-map-file can be used to specify files containing module - // definitions. - Args.AddAllArgs(CmdArgs, options::OPT_fmodule_map_file); - - // -fbuiltin-module-map can be used to load the clang - // builtin headers modulemap file. - if (Args.hasArg(options::OPT_fbuiltin_module_map)) { - SmallString<128> BuiltinModuleMap(getToolChain().getDriver().ResourceDir); - llvm::sys::path::append(BuiltinModuleMap, "include"); - llvm::sys::path::append(BuiltinModuleMap, "module.modulemap"); - if (llvm::sys::fs::exists(BuiltinModuleMap)) { - CmdArgs.push_back(Args.MakeArgString("-fmodule-map-file=" + - BuiltinModuleMap)); - } - } - - // -fmodule-file can be used to specify files containing precompiled modules. - if (HaveAnyModules) - Args.AddAllArgs(CmdArgs, options::OPT_fmodule_file); - else - Args.ClaimAllArgs(options::OPT_fmodule_file); - - // When building modules and generating crashdumps, we need to dump a module - // dependency VFS alongside the output. - if (HaveClangModules && C.isForDiagnostics()) { - SmallString<128> VFSDir(Output.getFilename()); - llvm::sys::path::replace_extension(VFSDir, ".cache"); - // Add the cache directory as a temp so the crash diagnostics pick it up. - C.addTempFile(Args.MakeArgString(VFSDir)); - - llvm::sys::path::append(VFSDir, "vfs"); - CmdArgs.push_back("-module-dependency-dir"); - CmdArgs.push_back(Args.MakeArgString(VFSDir)); - } - - if (HaveClangModules) - Args.AddLastArg(CmdArgs, options::OPT_fmodules_user_build_path); - - // Pass through all -fmodules-ignore-macro arguments. - Args.AddAllArgs(CmdArgs, options::OPT_fmodules_ignore_macro); - Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_interval); - Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_after); - - Args.AddLastArg(CmdArgs, options::OPT_fbuild_session_timestamp); - - if (Arg *A = Args.getLastArg(options::OPT_fbuild_session_file)) { - if (Args.hasArg(options::OPT_fbuild_session_timestamp)) - D.Diag(diag::err_drv_argument_not_allowed_with) - << A->getAsString(Args) << "-fbuild-session-timestamp"; - - llvm::sys::fs::file_status Status; - if (llvm::sys::fs::status(A->getValue(), Status)) - D.Diag(diag::err_drv_no_such_file) << A->getValue(); - CmdArgs.push_back( - Args.MakeArgString("-fbuild-session-timestamp=" + - Twine((uint64_t)Status.getLastModificationTime() - .time_since_epoch() - .count()))); - } - - if (Args.getLastArg(options::OPT_fmodules_validate_once_per_build_session)) { - if (!Args.getLastArg(options::OPT_fbuild_session_timestamp, - options::OPT_fbuild_session_file)) - D.Diag(diag::err_drv_modules_validate_once_requires_timestamp); - - Args.AddLastArg(CmdArgs, - options::OPT_fmodules_validate_once_per_build_session); - } - - Args.AddLastArg(CmdArgs, options::OPT_fmodules_validate_system_headers); - Args.AddLastArg(CmdArgs, options::OPT_fmodules_disable_diagnostic_validation); - - // -faccess-control is default. - if (Args.hasFlag(options::OPT_fno_access_control, - options::OPT_faccess_control, false)) - CmdArgs.push_back("-fno-access-control"); - - // -felide-constructors is the default. - if (Args.hasFlag(options::OPT_fno_elide_constructors, - options::OPT_felide_constructors, false)) - CmdArgs.push_back("-fno-elide-constructors"); - - ToolChain::RTTIMode RTTIMode = getToolChain().getRTTIMode(); - - if (KernelOrKext || (types::isCXX(InputType) && - (RTTIMode == ToolChain::RM_DisabledExplicitly || - RTTIMode == ToolChain::RM_DisabledImplicitly))) - CmdArgs.push_back("-fno-rtti"); - - // -fshort-enums=0 is default for all architectures except Hexagon. - if (Args.hasFlag(options::OPT_fshort_enums, options::OPT_fno_short_enums, - getToolChain().getArch() == llvm::Triple::hexagon)) - CmdArgs.push_back("-fshort-enums"); - - // -fsigned-char is default. - if (Arg *A = Args.getLastArg( - options::OPT_fsigned_char, options::OPT_fno_signed_char, - options::OPT_funsigned_char, options::OPT_fno_unsigned_char)) { - if (A->getOption().matches(options::OPT_funsigned_char) || - A->getOption().matches(options::OPT_fno_signed_char)) { - CmdArgs.push_back("-fno-signed-char"); - } - } else if (!isSignedCharDefault(getToolChain().getTriple())) { - CmdArgs.push_back("-fno-signed-char"); - } - - // -fuse-cxa-atexit is default. - if (!Args.hasFlag( - options::OPT_fuse_cxa_atexit, options::OPT_fno_use_cxa_atexit, - !IsWindowsCygnus && !IsWindowsGNU && - getToolChain().getTriple().getOS() != llvm::Triple::Solaris && - getToolChain().getArch() != llvm::Triple::hexagon && - getToolChain().getArch() != llvm::Triple::xcore && - ((getToolChain().getTriple().getVendor() != - llvm::Triple::MipsTechnologies) || - getToolChain().getTriple().hasEnvironment())) || - KernelOrKext) - CmdArgs.push_back("-fno-use-cxa-atexit"); - - // -fms-extensions=0 is default. - if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions, - IsWindowsMSVC)) - CmdArgs.push_back("-fms-extensions"); - - // -fno-use-line-directives is default. - if (Args.hasFlag(options::OPT_fuse_line_directives, - options::OPT_fno_use_line_directives, false)) - CmdArgs.push_back("-fuse-line-directives"); - - // -fms-compatibility=0 is default. - if (Args.hasFlag(options::OPT_fms_compatibility, - options::OPT_fno_ms_compatibility, - (IsWindowsMSVC && - Args.hasFlag(options::OPT_fms_extensions, - options::OPT_fno_ms_extensions, true)))) - CmdArgs.push_back("-fms-compatibility"); - - VersionTuple MSVT = - getToolChain().computeMSVCVersion(&getToolChain().getDriver(), Args); - if (!MSVT.empty()) - CmdArgs.push_back( - Args.MakeArgString("-fms-compatibility-version=" + MSVT.getAsString())); - - bool IsMSVC2015Compatible = MSVT.getMajor() >= 19; - if (ImplyVCPPCXXVer) { - StringRef LanguageStandard; - if (const Arg *StdArg = Args.getLastArg(options::OPT__SLASH_std)) { - LanguageStandard = llvm::StringSwitch<StringRef>(StdArg->getValue()) - .Case("c++14", "-std=c++14") - .Case("c++latest", "-std=c++1z") - .Default(""); - if (LanguageStandard.empty()) - D.Diag(clang::diag::warn_drv_unused_argument) - << StdArg->getAsString(Args); - } - - if (LanguageStandard.empty()) { - if (IsMSVC2015Compatible) - LanguageStandard = "-std=c++14"; - else - LanguageStandard = "-std=c++11"; - } - - CmdArgs.push_back(LanguageStandard.data()); - } - - // -fno-borland-extensions is default. - if (Args.hasFlag(options::OPT_fborland_extensions, - options::OPT_fno_borland_extensions, false)) - CmdArgs.push_back("-fborland-extensions"); - - // -fno-declspec is default, except for PS4. - if (Args.hasFlag(options::OPT_fdeclspec, options::OPT_fno_declspec, - getToolChain().getTriple().isPS4())) - CmdArgs.push_back("-fdeclspec"); - else if (Args.hasArg(options::OPT_fno_declspec)) - CmdArgs.push_back("-fno-declspec"); // Explicitly disabling __declspec. - - // -fthreadsafe-static is default, except for MSVC compatibility versions less - // than 19. - if (!Args.hasFlag(options::OPT_fthreadsafe_statics, - options::OPT_fno_threadsafe_statics, - !IsWindowsMSVC || IsMSVC2015Compatible)) - CmdArgs.push_back("-fno-threadsafe-statics"); - - // -fno-delayed-template-parsing is default, except for Windows where MSVC STL - // needs it. - if (Args.hasFlag(options::OPT_fdelayed_template_parsing, - options::OPT_fno_delayed_template_parsing, IsWindowsMSVC)) - CmdArgs.push_back("-fdelayed-template-parsing"); - - // -fgnu-keywords default varies depending on language; only pass if - // specified. - if (Arg *A = Args.getLastArg(options::OPT_fgnu_keywords, - options::OPT_fno_gnu_keywords)) - A->render(Args, CmdArgs); - - if (Args.hasFlag(options::OPT_fgnu89_inline, options::OPT_fno_gnu89_inline, - false)) - CmdArgs.push_back("-fgnu89-inline"); - - if (Args.hasArg(options::OPT_fno_inline)) - CmdArgs.push_back("-fno-inline"); - - if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions, - options::OPT_finline_hint_functions, - options::OPT_fno_inline_functions)) - InlineArg->render(Args, CmdArgs); - - Args.AddLastArg(CmdArgs, options::OPT_fexperimental_new_pass_manager, - options::OPT_fno_experimental_new_pass_manager); - - ObjCRuntime objcRuntime = AddObjCRuntimeArgs(Args, CmdArgs, rewriteKind); - - // -fobjc-dispatch-method is only relevant with the nonfragile-abi, and - // legacy is the default. Except for deployment target of 10.5, - // next runtime is always legacy dispatch and -fno-objc-legacy-dispatch - // gets ignored silently. - if (objcRuntime.isNonFragile()) { - if (!Args.hasFlag(options::OPT_fobjc_legacy_dispatch, - options::OPT_fno_objc_legacy_dispatch, - objcRuntime.isLegacyDispatchDefaultForArch( - getToolChain().getArch()))) { - if (getToolChain().UseObjCMixedDispatch()) - CmdArgs.push_back("-fobjc-dispatch-method=mixed"); - else - CmdArgs.push_back("-fobjc-dispatch-method=non-legacy"); - } - } - - // When ObjectiveC legacy runtime is in effect on MacOSX, - // turn on the option to do Array/Dictionary subscripting - // by default. - if (getToolChain().getArch() == llvm::Triple::x86 && - getToolChain().getTriple().isMacOSX() && - !getToolChain().getTriple().isMacOSXVersionLT(10, 7) && - objcRuntime.getKind() == ObjCRuntime::FragileMacOSX && - objcRuntime.isNeXTFamily()) - CmdArgs.push_back("-fobjc-subscripting-legacy-runtime"); - - // -fencode-extended-block-signature=1 is default. - if (getToolChain().IsEncodeExtendedBlockSignatureDefault()) { - CmdArgs.push_back("-fencode-extended-block-signature"); - } - - // Allow -fno-objc-arr to trump -fobjc-arr/-fobjc-arc. - // NOTE: This logic is duplicated in ToolChains.cpp. - bool ARC = isObjCAutoRefCount(Args); - if (ARC) { - getToolChain().CheckObjCARC(); - - CmdArgs.push_back("-fobjc-arc"); - - // FIXME: It seems like this entire block, and several around it should be - // wrapped in isObjC, but for now we just use it here as this is where it - // was being used previously. - if (types::isCXX(InputType) && types::isObjC(InputType)) { - if (getToolChain().GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) - CmdArgs.push_back("-fobjc-arc-cxxlib=libc++"); - else - CmdArgs.push_back("-fobjc-arc-cxxlib=libstdc++"); - } - - // Allow the user to enable full exceptions code emission. - // We define off for Objective-CC, on for Objective-C++. - if (Args.hasFlag(options::OPT_fobjc_arc_exceptions, - options::OPT_fno_objc_arc_exceptions, - /*default*/ types::isCXX(InputType))) - CmdArgs.push_back("-fobjc-arc-exceptions"); - - } - - // -fobjc-infer-related-result-type is the default, except in the Objective-C - // rewriter. - if (rewriteKind != RK_None) - CmdArgs.push_back("-fno-objc-infer-related-result-type"); - - // Pass down -fobjc-weak or -fno-objc-weak if present. - if (types::isObjC(InputType)) { - auto WeakArg = Args.getLastArg(options::OPT_fobjc_weak, - options::OPT_fno_objc_weak); - if (!WeakArg) { - // nothing to do - } else if (!objcRuntime.allowsWeak()) { - if (WeakArg->getOption().matches(options::OPT_fobjc_weak)) - D.Diag(diag::err_objc_weak_unsupported); - } else { - WeakArg->render(Args, CmdArgs); - } - } - - if (Args.hasFlag(options::OPT_fapplication_extension, - options::OPT_fno_application_extension, false)) - CmdArgs.push_back("-fapplication-extension"); - - // Handle GCC-style exception args. - if (!C.getDriver().IsCLMode()) - addExceptionArgs(Args, InputType, getToolChain(), KernelOrKext, objcRuntime, - CmdArgs); - - if (Args.hasArg(options::OPT_fsjlj_exceptions) || - getToolChain().UseSjLjExceptions(Args)) - CmdArgs.push_back("-fsjlj-exceptions"); - - // C++ "sane" operator new. - if (!Args.hasFlag(options::OPT_fassume_sane_operator_new, - options::OPT_fno_assume_sane_operator_new)) - CmdArgs.push_back("-fno-assume-sane-operator-new"); - - // -frelaxed-template-template-args is off by default, as it is a severe - // breaking change until a corresponding change to template partial ordering - // is provided. - if (Args.hasFlag(options::OPT_frelaxed_template_template_args, - options::OPT_fno_relaxed_template_template_args, false)) - CmdArgs.push_back("-frelaxed-template-template-args"); - - // -fsized-deallocation is off by default, as it is an ABI-breaking change for - // most platforms. - if (Args.hasFlag(options::OPT_fsized_deallocation, - options::OPT_fno_sized_deallocation, false)) - CmdArgs.push_back("-fsized-deallocation"); - - // -faligned-allocation is on by default in C++17 onwards and otherwise off - // by default. - if (Arg *A = Args.getLastArg(options::OPT_faligned_allocation, - options::OPT_fno_aligned_allocation, - options::OPT_faligned_new_EQ)) { - if (A->getOption().matches(options::OPT_fno_aligned_allocation)) - CmdArgs.push_back("-fno-aligned-allocation"); - else - CmdArgs.push_back("-faligned-allocation"); - } - - // The default new alignment can be specified using a dedicated option or via - // a GCC-compatible option that also turns on aligned allocation. - if (Arg *A = Args.getLastArg(options::OPT_fnew_alignment_EQ, - options::OPT_faligned_new_EQ)) - CmdArgs.push_back( - Args.MakeArgString(Twine("-fnew-alignment=") + A->getValue())); - - // -fconstant-cfstrings is default, and may be subject to argument translation - // on Darwin. - if (!Args.hasFlag(options::OPT_fconstant_cfstrings, - options::OPT_fno_constant_cfstrings) || - !Args.hasFlag(options::OPT_mconstant_cfstrings, - options::OPT_mno_constant_cfstrings)) - CmdArgs.push_back("-fno-constant-cfstrings"); - - // -fshort-wchar default varies depending on platform; only - // pass if specified. - if (Arg *A = Args.getLastArg(options::OPT_fshort_wchar, - options::OPT_fno_short_wchar)) - A->render(Args, CmdArgs); - - // -fno-pascal-strings is default, only pass non-default. - if (Args.hasFlag(options::OPT_fpascal_strings, - options::OPT_fno_pascal_strings, false)) - CmdArgs.push_back("-fpascal-strings"); - - // Honor -fpack-struct= and -fpack-struct, if given. Note that - // -fno-pack-struct doesn't apply to -fpack-struct=. - if (Arg *A = Args.getLastArg(options::OPT_fpack_struct_EQ)) { - std::string PackStructStr = "-fpack-struct="; - PackStructStr += A->getValue(); - CmdArgs.push_back(Args.MakeArgString(PackStructStr)); - } else if (Args.hasFlag(options::OPT_fpack_struct, - options::OPT_fno_pack_struct, false)) { - CmdArgs.push_back("-fpack-struct=1"); - } - - // Handle -fmax-type-align=N and -fno-type-align - bool SkipMaxTypeAlign = Args.hasArg(options::OPT_fno_max_type_align); - if (Arg *A = Args.getLastArg(options::OPT_fmax_type_align_EQ)) { - if (!SkipMaxTypeAlign) { - std::string MaxTypeAlignStr = "-fmax-type-align="; - MaxTypeAlignStr += A->getValue(); - CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr)); - } - } else if (getToolChain().getTriple().isOSDarwin()) { - if (!SkipMaxTypeAlign) { - std::string MaxTypeAlignStr = "-fmax-type-align=16"; - CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr)); - } - } - - // -fcommon is the default unless compiling kernel code or the target says so - bool NoCommonDefault = - KernelOrKext || isNoCommonDefault(getToolChain().getTriple()); - if (!Args.hasFlag(options::OPT_fcommon, options::OPT_fno_common, - !NoCommonDefault)) - CmdArgs.push_back("-fno-common"); - - // -fsigned-bitfields is default, and clang doesn't yet support - // -funsigned-bitfields. - if (!Args.hasFlag(options::OPT_fsigned_bitfields, - options::OPT_funsigned_bitfields)) - D.Diag(diag::warn_drv_clang_unsupported) - << Args.getLastArg(options::OPT_funsigned_bitfields)->getAsString(Args); - - // -fsigned-bitfields is default, and clang doesn't support -fno-for-scope. - if (!Args.hasFlag(options::OPT_ffor_scope, options::OPT_fno_for_scope)) - D.Diag(diag::err_drv_clang_unsupported) - << Args.getLastArg(options::OPT_fno_for_scope)->getAsString(Args); - - // -finput_charset=UTF-8 is default. Reject others - if (Arg *inputCharset = Args.getLastArg(options::OPT_finput_charset_EQ)) { - StringRef value = inputCharset->getValue(); - if (!value.equals_lower("utf-8")) - D.Diag(diag::err_drv_invalid_value) << inputCharset->getAsString(Args) - << value; - } - - // -fexec_charset=UTF-8 is default. Reject others - if (Arg *execCharset = Args.getLastArg(options::OPT_fexec_charset_EQ)) { - StringRef value = execCharset->getValue(); - if (!value.equals_lower("utf-8")) - D.Diag(diag::err_drv_invalid_value) << execCharset->getAsString(Args) - << value; - } - - // -fcaret-diagnostics is default. - if (!Args.hasFlag(options::OPT_fcaret_diagnostics, - options::OPT_fno_caret_diagnostics, true)) - CmdArgs.push_back("-fno-caret-diagnostics"); - - // -fdiagnostics-fixit-info is default, only pass non-default. - if (!Args.hasFlag(options::OPT_fdiagnostics_fixit_info, - options::OPT_fno_diagnostics_fixit_info)) - CmdArgs.push_back("-fno-diagnostics-fixit-info"); - - // Enable -fdiagnostics-show-option by default. - if (Args.hasFlag(options::OPT_fdiagnostics_show_option, - options::OPT_fno_diagnostics_show_option)) - CmdArgs.push_back("-fdiagnostics-show-option"); - - if (const Arg *A = - Args.getLastArg(options::OPT_fdiagnostics_show_category_EQ)) { - CmdArgs.push_back("-fdiagnostics-show-category"); - CmdArgs.push_back(A->getValue()); - } - - if (Args.hasFlag(options::OPT_fdiagnostics_show_hotness, - options::OPT_fno_diagnostics_show_hotness, false)) - CmdArgs.push_back("-fdiagnostics-show-hotness"); - - if (const Arg *A = Args.getLastArg(options::OPT_fdiagnostics_format_EQ)) { - CmdArgs.push_back("-fdiagnostics-format"); - CmdArgs.push_back(A->getValue()); - } - - if (Arg *A = Args.getLastArg( - options::OPT_fdiagnostics_show_note_include_stack, - options::OPT_fno_diagnostics_show_note_include_stack)) { - if (A->getOption().matches( - options::OPT_fdiagnostics_show_note_include_stack)) - CmdArgs.push_back("-fdiagnostics-show-note-include-stack"); - else - CmdArgs.push_back("-fno-diagnostics-show-note-include-stack"); - } - - // Color diagnostics are parsed by the driver directly from argv - // and later re-parsed to construct this job; claim any possible - // color diagnostic here to avoid warn_drv_unused_argument and - // diagnose bad OPT_fdiagnostics_color_EQ values. - for (Arg *A : Args) { - const Option &O = A->getOption(); - if (!O.matches(options::OPT_fcolor_diagnostics) && - !O.matches(options::OPT_fdiagnostics_color) && - !O.matches(options::OPT_fno_color_diagnostics) && - !O.matches(options::OPT_fno_diagnostics_color) && - !O.matches(options::OPT_fdiagnostics_color_EQ)) - continue; - if (O.matches(options::OPT_fdiagnostics_color_EQ)) { - StringRef Value(A->getValue()); - if (Value != "always" && Value != "never" && Value != "auto") - getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) - << ("-fdiagnostics-color=" + Value).str(); - } - A->claim(); - } - if (D.getDiags().getDiagnosticOptions().ShowColors) - CmdArgs.push_back("-fcolor-diagnostics"); - - if (Args.hasArg(options::OPT_fansi_escape_codes)) - CmdArgs.push_back("-fansi-escape-codes"); - - if (!Args.hasFlag(options::OPT_fshow_source_location, - options::OPT_fno_show_source_location)) - CmdArgs.push_back("-fno-show-source-location"); - - if (Args.hasArg(options::OPT_fdiagnostics_absolute_paths)) - CmdArgs.push_back("-fdiagnostics-absolute-paths"); - - if (!Args.hasFlag(options::OPT_fshow_column, options::OPT_fno_show_column, - true)) - CmdArgs.push_back("-fno-show-column"); - - if (!Args.hasFlag(options::OPT_fspell_checking, - options::OPT_fno_spell_checking)) - CmdArgs.push_back("-fno-spell-checking"); - - // -fno-asm-blocks is default. - if (Args.hasFlag(options::OPT_fasm_blocks, options::OPT_fno_asm_blocks, - false)) - CmdArgs.push_back("-fasm-blocks"); - - // -fgnu-inline-asm is default. - if (!Args.hasFlag(options::OPT_fgnu_inline_asm, - options::OPT_fno_gnu_inline_asm, true)) - CmdArgs.push_back("-fno-gnu-inline-asm"); - - // Enable vectorization per default according to the optimization level - // selected. For optimization levels that want vectorization we use the alias - // option to simplify the hasFlag logic. - bool EnableVec = shouldEnableVectorizerAtOLevel(Args, false); - OptSpecifier VectorizeAliasOption = - EnableVec ? options::OPT_O_Group : options::OPT_fvectorize; - if (Args.hasFlag(options::OPT_fvectorize, VectorizeAliasOption, - options::OPT_fno_vectorize, EnableVec)) - CmdArgs.push_back("-vectorize-loops"); - - // -fslp-vectorize is enabled based on the optimization level selected. - bool EnableSLPVec = shouldEnableVectorizerAtOLevel(Args, true); - OptSpecifier SLPVectAliasOption = - EnableSLPVec ? options::OPT_O_Group : options::OPT_fslp_vectorize; - if (Args.hasFlag(options::OPT_fslp_vectorize, SLPVectAliasOption, - options::OPT_fno_slp_vectorize, EnableSLPVec)) - CmdArgs.push_back("-vectorize-slp"); - - // -fno-slp-vectorize-aggressive is default. - if (Args.hasFlag(options::OPT_fslp_vectorize_aggressive, - options::OPT_fno_slp_vectorize_aggressive, false)) - CmdArgs.push_back("-vectorize-slp-aggressive"); - - if (Arg *A = Args.getLastArg(options::OPT_fshow_overloads_EQ)) - A->render(Args, CmdArgs); - - if (Arg *A = Args.getLastArg( - options::OPT_fsanitize_undefined_strip_path_components_EQ)) - A->render(Args, CmdArgs); - - // -fdollars-in-identifiers default varies depending on platform and - // language; only pass if specified. - if (Arg *A = Args.getLastArg(options::OPT_fdollars_in_identifiers, - options::OPT_fno_dollars_in_identifiers)) { - if (A->getOption().matches(options::OPT_fdollars_in_identifiers)) - CmdArgs.push_back("-fdollars-in-identifiers"); - else - CmdArgs.push_back("-fno-dollars-in-identifiers"); - } - - // -funit-at-a-time is default, and we don't support -fno-unit-at-a-time for - // practical purposes. - if (Arg *A = Args.getLastArg(options::OPT_funit_at_a_time, - options::OPT_fno_unit_at_a_time)) { - if (A->getOption().matches(options::OPT_fno_unit_at_a_time)) - D.Diag(diag::warn_drv_clang_unsupported) << A->getAsString(Args); - } - - if (Args.hasFlag(options::OPT_fapple_pragma_pack, - options::OPT_fno_apple_pragma_pack, false)) - CmdArgs.push_back("-fapple-pragma-pack"); - - // le32-specific flags: - // -fno-math-builtin: clang should not convert math builtins to intrinsics - // by default. - if (getToolChain().getArch() == llvm::Triple::le32) { - CmdArgs.push_back("-fno-math-builtin"); - } - - if (Args.hasFlag(options::OPT_fsave_optimization_record, - options::OPT_fno_save_optimization_record, false)) { - CmdArgs.push_back("-opt-record-file"); - - const Arg *A = Args.getLastArg(options::OPT_foptimization_record_file_EQ); - if (A) { - CmdArgs.push_back(A->getValue()); - } else { - SmallString<128> F; - if (Output.isFilename() && (Args.hasArg(options::OPT_c) || - Args.hasArg(options::OPT_S))) { - F = Output.getFilename(); - } else { - // Use the input filename. - F = llvm::sys::path::stem(Input.getBaseInput()); - - // If we're compiling for an offload architecture (i.e. a CUDA device), - // we need to make the file name for the device compilation different - // from the host compilation. - if (!JA.isDeviceOffloading(Action::OFK_None) && - !JA.isDeviceOffloading(Action::OFK_Host)) { - llvm::sys::path::replace_extension(F, ""); - F += Action::GetOffloadingFileNamePrefix(JA.getOffloadingDeviceKind(), - Triple.normalize()); - F += "-"; - F += JA.getOffloadingArch(); - } - } - - llvm::sys::path::replace_extension(F, "opt.yaml"); - CmdArgs.push_back(Args.MakeArgString(F)); - } - } - -// Default to -fno-builtin-str{cat,cpy} on Darwin for ARM. -// -// FIXME: Now that PR4941 has been fixed this can be enabled. -#if 0 - if (getToolChain().getTriple().isOSDarwin() && - (getToolChain().getArch() == llvm::Triple::arm || - getToolChain().getArch() == llvm::Triple::thumb)) { - if (!Args.hasArg(options::OPT_fbuiltin_strcat)) - CmdArgs.push_back("-fno-builtin-strcat"); - if (!Args.hasArg(options::OPT_fbuiltin_strcpy)) - CmdArgs.push_back("-fno-builtin-strcpy"); - } -#endif - - // Enable rewrite includes if the user's asked for it or if we're generating - // diagnostics. - // TODO: Once -module-dependency-dir works with -frewrite-includes it'd be - // nice to enable this when doing a crashdump for modules as well. - if (Args.hasFlag(options::OPT_frewrite_includes, - options::OPT_fno_rewrite_includes, false) || - (C.isForDiagnostics() && !HaveAnyModules)) - CmdArgs.push_back("-frewrite-includes"); - - // Only allow -traditional or -traditional-cpp outside in preprocessing modes. - if (Arg *A = Args.getLastArg(options::OPT_traditional, - options::OPT_traditional_cpp)) { - if (isa<PreprocessJobAction>(JA)) - CmdArgs.push_back("-traditional-cpp"); - else - D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); - } - - Args.AddLastArg(CmdArgs, options::OPT_dM); - Args.AddLastArg(CmdArgs, options::OPT_dD); - - // Handle serialized diagnostics. - if (Arg *A = Args.getLastArg(options::OPT__serialize_diags)) { - CmdArgs.push_back("-serialize-diagnostic-file"); - CmdArgs.push_back(Args.MakeArgString(A->getValue())); - } - - if (Args.hasArg(options::OPT_fretain_comments_from_system_headers)) - CmdArgs.push_back("-fretain-comments-from-system-headers"); - - // Forward -fcomment-block-commands to -cc1. - Args.AddAllArgs(CmdArgs, options::OPT_fcomment_block_commands); - // Forward -fparse-all-comments to -cc1. - Args.AddAllArgs(CmdArgs, options::OPT_fparse_all_comments); - - // Turn -fplugin=name.so into -load name.so - for (const Arg *A : Args.filtered(options::OPT_fplugin_EQ)) { - CmdArgs.push_back("-load"); - CmdArgs.push_back(A->getValue()); - A->claim(); - } - - // Setup statistics file output. - if (const Arg *A = Args.getLastArg(options::OPT_save_stats_EQ)) { - StringRef SaveStats = A->getValue(); - - SmallString<128> StatsFile; - bool DoSaveStats = false; - if (SaveStats == "obj") { - if (Output.isFilename()) { - StatsFile.assign(Output.getFilename()); - llvm::sys::path::remove_filename(StatsFile); - } - DoSaveStats = true; - } else if (SaveStats == "cwd") { - DoSaveStats = true; - } else { - D.Diag(diag::err_drv_invalid_value) << A->getAsString(Args) << SaveStats; - } - - if (DoSaveStats) { - StringRef BaseName = llvm::sys::path::filename(Input.getBaseInput()); - llvm::sys::path::append(StatsFile, BaseName); - llvm::sys::path::replace_extension(StatsFile, "stats"); - CmdArgs.push_back(Args.MakeArgString(Twine("-stats-file=") + - StatsFile)); - } - } - - // Forward -Xclang arguments to -cc1, and -mllvm arguments to the LLVM option - // parser. - Args.AddAllArgValues(CmdArgs, options::OPT_Xclang); - for (const Arg *A : Args.filtered(options::OPT_mllvm)) { - A->claim(); - - // We translate this by hand to the -cc1 argument, since nightly test uses - // it and developers have been trained to spell it with -mllvm. Both - // spellings are now deprecated and should be removed. - if (StringRef(A->getValue(0)) == "-disable-llvm-optzns") { - CmdArgs.push_back("-disable-llvm-optzns"); - } else { - A->render(Args, CmdArgs); - } - } - - // With -save-temps, we want to save the unoptimized bitcode output from the - // CompileJobAction, use -disable-llvm-passes to get pristine IR generated - // by the frontend. - // When -fembed-bitcode is enabled, optimized bitcode is emitted because it - // has slightly different breakdown between stages. - // FIXME: -fembed-bitcode -save-temps will save optimized bitcode instead of - // pristine IR generated by the frontend. Ideally, a new compile action should - // be added so both IR can be captured. - if (C.getDriver().isSaveTempsEnabled() && - !C.getDriver().embedBitcodeInObject() && isa<CompileJobAction>(JA)) - CmdArgs.push_back("-disable-llvm-passes"); - - if (Output.getType() == types::TY_Dependencies) { - // Handled with other dependency code. - } else if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - addDashXForInput(Args, Input, CmdArgs); - - if (Input.isFilename()) - CmdArgs.push_back(Input.getFilename()); - else - Input.getInputArg().renderAsInput(Args, CmdArgs); - - Args.AddAllArgs(CmdArgs, options::OPT_undef); - - const char *Exec = getToolChain().getDriver().getClangProgramPath(); - - // Optionally embed the -cc1 level arguments into the debug info, for build - // analysis. - if (getToolChain().UseDwarfDebugFlags()) { - ArgStringList OriginalArgs; - for (const auto &Arg : Args) - Arg->render(Args, OriginalArgs); - - SmallString<256> Flags; - Flags += Exec; - for (const char *OriginalArg : OriginalArgs) { - SmallString<128> EscapedArg; - EscapeSpacesAndBackslashes(OriginalArg, EscapedArg); - Flags += " "; - Flags += EscapedArg; - } - CmdArgs.push_back("-dwarf-debug-flags"); - CmdArgs.push_back(Args.MakeArgString(Flags)); - } - - // Add the split debug info name to the command lines here so we - // can propagate it to the backend. - bool SplitDwarf = SplitDwarfArg && getToolChain().getTriple().isOSLinux() && - (isa<AssembleJobAction>(JA) || isa<CompileJobAction>(JA) || - isa<BackendJobAction>(JA)); - const char *SplitDwarfOut; - if (SplitDwarf) { - CmdArgs.push_back("-split-dwarf-file"); - SplitDwarfOut = SplitDebugName(Args, Input); - CmdArgs.push_back(SplitDwarfOut); - } - - // Host-side cuda compilation receives device-side outputs as Inputs[1...]. - // Include them with -fcuda-include-gpubinary. - if (IsCuda && Inputs.size() > 1) - for (auto I = std::next(Inputs.begin()), E = Inputs.end(); I != E; ++I) { - CmdArgs.push_back("-fcuda-include-gpubinary"); - CmdArgs.push_back(I->getFilename()); - } - - // OpenMP offloading device jobs take the argument -fopenmp-host-ir-file-path - // to specify the result of the compile phase on the host, so the meaningful - // device declarations can be identified. Also, -fopenmp-is-device is passed - // along to tell the frontend that it is generating code for a device, so that - // only the relevant declarations are emitted. - if (IsOpenMPDevice && Inputs.size() == 2) { - CmdArgs.push_back("-fopenmp-is-device"); - CmdArgs.push_back("-fopenmp-host-ir-file-path"); - CmdArgs.push_back(Args.MakeArgString(Inputs.back().getFilename())); - } - - // For all the host OpenMP offloading compile jobs we need to pass the targets - // information using -fopenmp-targets= option. - if (isa<CompileJobAction>(JA) && JA.isHostOffloading(Action::OFK_OpenMP)) { - SmallString<128> TargetInfo("-fopenmp-targets="); - - Arg *Tgts = Args.getLastArg(options::OPT_fopenmp_targets_EQ); - assert(Tgts && Tgts->getNumValues() && - "OpenMP offloading has to have targets specified."); - for (unsigned i = 0; i < Tgts->getNumValues(); ++i) { - if (i) - TargetInfo += ','; - // We need to get the string from the triple because it may be not exactly - // the same as the one we get directly from the arguments. - llvm::Triple T(Tgts->getValue(i)); - TargetInfo += T.getTriple(); - } - CmdArgs.push_back(Args.MakeArgString(TargetInfo.str())); - } - - bool WholeProgramVTables = - Args.hasFlag(options::OPT_fwhole_program_vtables, - options::OPT_fno_whole_program_vtables, false); - if (WholeProgramVTables) { - if (!D.isUsingLTO()) - D.Diag(diag::err_drv_argument_only_allowed_with) - << "-fwhole-program-vtables" - << "-flto"; - CmdArgs.push_back("-fwhole-program-vtables"); - } - - // Finally add the compile command to the compilation. - if (Args.hasArg(options::OPT__SLASH_fallback) && - Output.getType() == types::TY_Object && - (InputType == types::TY_C || InputType == types::TY_CXX)) { - auto CLCommand = - getCLFallback()->GetCommand(C, JA, Output, Inputs, Args, LinkingOutput); - C.addCommand(llvm::make_unique<FallbackCommand>( - JA, *this, Exec, CmdArgs, Inputs, std::move(CLCommand))); - } else if (Args.hasArg(options::OPT__SLASH_fallback) && - isa<PrecompileJobAction>(JA)) { - // In /fallback builds, run the main compilation even if the pch generation - // fails, so that the main compilation's fallback to cl.exe runs. - C.addCommand(llvm::make_unique<ForceSuccessCommand>(JA, *this, Exec, - CmdArgs, Inputs)); - } else { - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); - } - - // Handle the debug info splitting at object creation time if we're - // creating an object. - // TODO: Currently only works on linux with newer objcopy. - if (SplitDwarf && Output.getType() == types::TY_Object) - SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output, SplitDwarfOut); - - if (Arg *A = Args.getLastArg(options::OPT_pg)) - if (Args.hasArg(options::OPT_fomit_frame_pointer)) - D.Diag(diag::err_drv_argument_not_allowed_with) << "-fomit-frame-pointer" - << A->getAsString(Args); - - // Claim some arguments which clang supports automatically. - - // -fpch-preprocess is used with gcc to add a special marker in the output to - // include the PCH file. Clang's PTH solution is completely transparent, so we - // do not need to deal with it at all. - Args.ClaimAllArgs(options::OPT_fpch_preprocess); - - // Claim some arguments which clang doesn't support, but we don't - // care to warn the user about. - Args.ClaimAllArgs(options::OPT_clang_ignored_f_Group); - Args.ClaimAllArgs(options::OPT_clang_ignored_m_Group); - - // Disable warnings for clang -E -emit-llvm foo.c - Args.ClaimAllArgs(options::OPT_emit_llvm); -} - -/// Add options related to the Objective-C runtime/ABI. -/// -/// Returns true if the runtime is non-fragile. -ObjCRuntime Clang::AddObjCRuntimeArgs(const ArgList &args, - ArgStringList &cmdArgs, - RewriteKind rewriteKind) const { - // Look for the controlling runtime option. - Arg *runtimeArg = - args.getLastArg(options::OPT_fnext_runtime, options::OPT_fgnu_runtime, - options::OPT_fobjc_runtime_EQ); - - // Just forward -fobjc-runtime= to the frontend. This supercedes - // options about fragility. - if (runtimeArg && - runtimeArg->getOption().matches(options::OPT_fobjc_runtime_EQ)) { - ObjCRuntime runtime; - StringRef value = runtimeArg->getValue(); - if (runtime.tryParse(value)) { - getToolChain().getDriver().Diag(diag::err_drv_unknown_objc_runtime) - << value; - } - - runtimeArg->render(args, cmdArgs); - return runtime; - } - - // Otherwise, we'll need the ABI "version". Version numbers are - // slightly confusing for historical reasons: - // 1 - Traditional "fragile" ABI - // 2 - Non-fragile ABI, version 1 - // 3 - Non-fragile ABI, version 2 - unsigned objcABIVersion = 1; - // If -fobjc-abi-version= is present, use that to set the version. - if (Arg *abiArg = args.getLastArg(options::OPT_fobjc_abi_version_EQ)) { - StringRef value = abiArg->getValue(); - if (value == "1") - objcABIVersion = 1; - else if (value == "2") - objcABIVersion = 2; - else if (value == "3") - objcABIVersion = 3; - else - getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) << value; - } else { - // Otherwise, determine if we are using the non-fragile ABI. - bool nonFragileABIIsDefault = - (rewriteKind == RK_NonFragile || - (rewriteKind == RK_None && - getToolChain().IsObjCNonFragileABIDefault())); - if (args.hasFlag(options::OPT_fobjc_nonfragile_abi, - options::OPT_fno_objc_nonfragile_abi, - nonFragileABIIsDefault)) { -// Determine the non-fragile ABI version to use. -#ifdef DISABLE_DEFAULT_NONFRAGILEABI_TWO - unsigned nonFragileABIVersion = 1; -#else - unsigned nonFragileABIVersion = 2; -#endif - - if (Arg *abiArg = - args.getLastArg(options::OPT_fobjc_nonfragile_abi_version_EQ)) { - StringRef value = abiArg->getValue(); - if (value == "1") - nonFragileABIVersion = 1; - else if (value == "2") - nonFragileABIVersion = 2; - else - getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) - << value; - } - - objcABIVersion = 1 + nonFragileABIVersion; - } else { - objcABIVersion = 1; - } - } - - // We don't actually care about the ABI version other than whether - // it's non-fragile. - bool isNonFragile = objcABIVersion != 1; - - // If we have no runtime argument, ask the toolchain for its default runtime. - // However, the rewriter only really supports the Mac runtime, so assume that. - ObjCRuntime runtime; - if (!runtimeArg) { - switch (rewriteKind) { - case RK_None: - runtime = getToolChain().getDefaultObjCRuntime(isNonFragile); - break; - case RK_Fragile: - runtime = ObjCRuntime(ObjCRuntime::FragileMacOSX, VersionTuple()); - break; - case RK_NonFragile: - runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple()); - break; - } - - // -fnext-runtime - } else if (runtimeArg->getOption().matches(options::OPT_fnext_runtime)) { - // On Darwin, make this use the default behavior for the toolchain. - if (getToolChain().getTriple().isOSDarwin()) { - runtime = getToolChain().getDefaultObjCRuntime(isNonFragile); - - // Otherwise, build for a generic macosx port. - } else { - runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple()); - } - - // -fgnu-runtime - } else { - assert(runtimeArg->getOption().matches(options::OPT_fgnu_runtime)); - // Legacy behaviour is to target the gnustep runtime if we are in - // non-fragile mode or the GCC runtime in fragile mode. - if (isNonFragile) - runtime = ObjCRuntime(ObjCRuntime::GNUstep, VersionTuple(1, 6)); - else - runtime = ObjCRuntime(ObjCRuntime::GCC, VersionTuple()); - } - - cmdArgs.push_back( - args.MakeArgString("-fobjc-runtime=" + runtime.getAsString())); - return runtime; -} - -static bool maybeConsumeDash(const std::string &EH, size_t &I) { - bool HaveDash = (I + 1 < EH.size() && EH[I + 1] == '-'); - I += HaveDash; - return !HaveDash; -} - -namespace { -struct EHFlags { - bool Synch = false; - bool Asynch = false; - bool NoUnwindC = false; -}; -} // end anonymous namespace - -/// /EH controls whether to run destructor cleanups when exceptions are -/// thrown. There are three modifiers: -/// - s: Cleanup after "synchronous" exceptions, aka C++ exceptions. -/// - a: Cleanup after "asynchronous" exceptions, aka structured exceptions. -/// The 'a' modifier is unimplemented and fundamentally hard in LLVM IR. -/// - c: Assume that extern "C" functions are implicitly nounwind. -/// The default is /EHs-c-, meaning cleanups are disabled. -static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) { - EHFlags EH; - - std::vector<std::string> EHArgs = - Args.getAllArgValues(options::OPT__SLASH_EH); - for (auto EHVal : EHArgs) { - for (size_t I = 0, E = EHVal.size(); I != E; ++I) { - switch (EHVal[I]) { - case 'a': - EH.Asynch = maybeConsumeDash(EHVal, I); - if (EH.Asynch) - EH.Synch = false; - continue; - case 'c': - EH.NoUnwindC = maybeConsumeDash(EHVal, I); - continue; - case 's': - EH.Synch = maybeConsumeDash(EHVal, I); - if (EH.Synch) - EH.Asynch = false; - continue; - default: - break; - } - D.Diag(clang::diag::err_drv_invalid_value) << "/EH" << EHVal; - break; - } - } - // The /GX, /GX- flags are only processed if there are not /EH flags. - // The default is that /GX is not specified. - if (EHArgs.empty() && - Args.hasFlag(options::OPT__SLASH_GX, options::OPT__SLASH_GX_, - /*default=*/false)) { - EH.Synch = true; - EH.NoUnwindC = true; - } - - return EH; -} - -void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType, - ArgStringList &CmdArgs, - codegenoptions::DebugInfoKind *DebugInfoKind, - bool *EmitCodeView) const { - unsigned RTOptionID = options::OPT__SLASH_MT; - - if (Args.hasArg(options::OPT__SLASH_LDd)) - // The /LDd option implies /MTd. The dependent lib part can be overridden, - // but defining _DEBUG is sticky. - RTOptionID = options::OPT__SLASH_MTd; - - if (Arg *A = Args.getLastArg(options::OPT__SLASH_M_Group)) - RTOptionID = A->getOption().getID(); - - StringRef FlagForCRT; - switch (RTOptionID) { - case options::OPT__SLASH_MD: - if (Args.hasArg(options::OPT__SLASH_LDd)) - CmdArgs.push_back("-D_DEBUG"); - CmdArgs.push_back("-D_MT"); - CmdArgs.push_back("-D_DLL"); - FlagForCRT = "--dependent-lib=msvcrt"; - break; - case options::OPT__SLASH_MDd: - CmdArgs.push_back("-D_DEBUG"); - CmdArgs.push_back("-D_MT"); - CmdArgs.push_back("-D_DLL"); - FlagForCRT = "--dependent-lib=msvcrtd"; - break; - case options::OPT__SLASH_MT: - if (Args.hasArg(options::OPT__SLASH_LDd)) - CmdArgs.push_back("-D_DEBUG"); - CmdArgs.push_back("-D_MT"); - CmdArgs.push_back("-flto-visibility-public-std"); - FlagForCRT = "--dependent-lib=libcmt"; - break; - case options::OPT__SLASH_MTd: - CmdArgs.push_back("-D_DEBUG"); - CmdArgs.push_back("-D_MT"); - CmdArgs.push_back("-flto-visibility-public-std"); - FlagForCRT = "--dependent-lib=libcmtd"; - break; - default: - llvm_unreachable("Unexpected option ID."); - } - - if (Args.hasArg(options::OPT__SLASH_Zl)) { - CmdArgs.push_back("-D_VC_NODEFAULTLIB"); - } else { - CmdArgs.push_back(FlagForCRT.data()); - - // This provides POSIX compatibility (maps 'open' to '_open'), which most - // users want. The /Za flag to cl.exe turns this off, but it's not - // implemented in clang. - CmdArgs.push_back("--dependent-lib=oldnames"); - } - - // Both /showIncludes and /E (and /EP) write to stdout. Allowing both - // would produce interleaved output, so ignore /showIncludes in such cases. - if (!Args.hasArg(options::OPT_E) && !Args.hasArg(options::OPT__SLASH_EP)) - if (Arg *A = Args.getLastArg(options::OPT_show_includes)) - A->render(Args, CmdArgs); - - // This controls whether or not we emit RTTI data for polymorphic types. - if (Args.hasFlag(options::OPT__SLASH_GR_, options::OPT__SLASH_GR, - /*default=*/false)) - CmdArgs.push_back("-fno-rtti-data"); - - // This controls whether or not we emit stack-protector instrumentation. - // In MSVC, Buffer Security Check (/GS) is on by default. - if (Args.hasFlag(options::OPT__SLASH_GS, options::OPT__SLASH_GS_, - /*default=*/true)) { - CmdArgs.push_back("-stack-protector"); - CmdArgs.push_back(Args.MakeArgString(Twine(LangOptions::SSPStrong))); - } - - // Emit CodeView if -Z7, -Zd, or -gline-tables-only are present. - if (Arg *DebugInfoArg = - Args.getLastArg(options::OPT__SLASH_Z7, options::OPT__SLASH_Zd, - options::OPT_gline_tables_only)) { - *EmitCodeView = true; - if (DebugInfoArg->getOption().matches(options::OPT__SLASH_Z7)) - *DebugInfoKind = codegenoptions::LimitedDebugInfo; - else - *DebugInfoKind = codegenoptions::DebugLineTablesOnly; - CmdArgs.push_back("-gcodeview"); - } else { - *EmitCodeView = false; - } - - const Driver &D = getToolChain().getDriver(); - EHFlags EH = parseClangCLEHFlags(D, Args); - if (EH.Synch || EH.Asynch) { - if (types::isCXX(InputType)) - CmdArgs.push_back("-fcxx-exceptions"); - CmdArgs.push_back("-fexceptions"); - } - if (types::isCXX(InputType) && EH.Synch && EH.NoUnwindC) - CmdArgs.push_back("-fexternc-nounwind"); - - // /EP should expand to -E -P. - if (Args.hasArg(options::OPT__SLASH_EP)) { - CmdArgs.push_back("-E"); - CmdArgs.push_back("-P"); - } - - unsigned VolatileOptionID; - if (getToolChain().getArch() == llvm::Triple::x86_64 || - getToolChain().getArch() == llvm::Triple::x86) - VolatileOptionID = options::OPT__SLASH_volatile_ms; - else - VolatileOptionID = options::OPT__SLASH_volatile_iso; - - if (Arg *A = Args.getLastArg(options::OPT__SLASH_volatile_Group)) - VolatileOptionID = A->getOption().getID(); - - if (VolatileOptionID == options::OPT__SLASH_volatile_ms) - CmdArgs.push_back("-fms-volatile"); - - Arg *MostGeneralArg = Args.getLastArg(options::OPT__SLASH_vmg); - Arg *BestCaseArg = Args.getLastArg(options::OPT__SLASH_vmb); - if (MostGeneralArg && BestCaseArg) - D.Diag(clang::diag::err_drv_argument_not_allowed_with) - << MostGeneralArg->getAsString(Args) << BestCaseArg->getAsString(Args); - - if (MostGeneralArg) { - Arg *SingleArg = Args.getLastArg(options::OPT__SLASH_vms); - Arg *MultipleArg = Args.getLastArg(options::OPT__SLASH_vmm); - Arg *VirtualArg = Args.getLastArg(options::OPT__SLASH_vmv); - - Arg *FirstConflict = SingleArg ? SingleArg : MultipleArg; - Arg *SecondConflict = VirtualArg ? VirtualArg : MultipleArg; - if (FirstConflict && SecondConflict && FirstConflict != SecondConflict) - D.Diag(clang::diag::err_drv_argument_not_allowed_with) - << FirstConflict->getAsString(Args) - << SecondConflict->getAsString(Args); - - if (SingleArg) - CmdArgs.push_back("-fms-memptr-rep=single"); - else if (MultipleArg) - CmdArgs.push_back("-fms-memptr-rep=multiple"); - else - CmdArgs.push_back("-fms-memptr-rep=virtual"); - } - - if (Args.getLastArg(options::OPT__SLASH_Gd)) - CmdArgs.push_back("-fdefault-calling-conv=cdecl"); - else if (Args.getLastArg(options::OPT__SLASH_Gr)) - CmdArgs.push_back("-fdefault-calling-conv=fastcall"); - else if (Args.getLastArg(options::OPT__SLASH_Gz)) - CmdArgs.push_back("-fdefault-calling-conv=stdcall"); - else if (Args.getLastArg(options::OPT__SLASH_Gv)) - CmdArgs.push_back("-fdefault-calling-conv=vectorcall"); - - if (Arg *A = Args.getLastArg(options::OPT_vtordisp_mode_EQ)) - A->render(Args, CmdArgs); - - if (!Args.hasArg(options::OPT_fdiagnostics_format_EQ)) { - CmdArgs.push_back("-fdiagnostics-format"); - if (Args.hasArg(options::OPT__SLASH_fallback)) - CmdArgs.push_back("msvc-fallback"); - else - CmdArgs.push_back("msvc"); - } -} - -visualstudio::Compiler *Clang::getCLFallback() const { - if (!CLFallback) - CLFallback.reset(new visualstudio::Compiler(getToolChain())); - return CLFallback.get(); -} - -void ClangAs::AddMIPSTargetArgs(const ArgList &Args, - ArgStringList &CmdArgs) const { - StringRef CPUName; - StringRef ABIName; - const llvm::Triple &Triple = getToolChain().getTriple(); - mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); - - CmdArgs.push_back("-target-abi"); - CmdArgs.push_back(ABIName.data()); -} - -void ClangAs::AddX86TargetArgs(const ArgList &Args, - ArgStringList &CmdArgs) const { - if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) { - StringRef Value = A->getValue(); - if (Value == "intel" || Value == "att") { - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value)); - } else { - getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument) - << A->getOption().getName() << Value; - } - } -} - -void ClangAs::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - ArgStringList CmdArgs; - - assert(Inputs.size() == 1 && "Unexpected number of inputs."); - const InputInfo &Input = Inputs[0]; - - const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); - const std::string &TripleStr = Triple.getTriple(); - - // Don't warn about "clang -w -c foo.s" - Args.ClaimAllArgs(options::OPT_w); - // and "clang -emit-llvm -c foo.s" - Args.ClaimAllArgs(options::OPT_emit_llvm); - - claimNoWarnArgs(Args); - - // Invoke ourselves in -cc1as mode. - // - // FIXME: Implement custom jobs for internal actions. - CmdArgs.push_back("-cc1as"); - - // Add the "effective" target triple. - CmdArgs.push_back("-triple"); - CmdArgs.push_back(Args.MakeArgString(TripleStr)); - - // Set the output mode, we currently only expect to be used as a real - // assembler. - CmdArgs.push_back("-filetype"); - CmdArgs.push_back("obj"); - - // Set the main file name, so that debug info works even with - // -save-temps or preprocessed assembly. - CmdArgs.push_back("-main-file-name"); - CmdArgs.push_back(Clang::getBaseInputName(Args, Input)); - - // Add the target cpu - std::string CPU = getCPUName(Args, Triple, /*FromAs*/ true); - if (!CPU.empty()) { - CmdArgs.push_back("-target-cpu"); - CmdArgs.push_back(Args.MakeArgString(CPU)); - } - - // Add the target features - getTargetFeatures(getToolChain(), Triple, Args, CmdArgs, true); - - // Ignore explicit -force_cpusubtype_ALL option. - (void)Args.hasArg(options::OPT_force__cpusubtype__ALL); - - // Pass along any -I options so we get proper .include search paths. - Args.AddAllArgs(CmdArgs, options::OPT_I_Group); - - // Determine the original source input. - const Action *SourceAction = &JA; - while (SourceAction->getKind() != Action::InputClass) { - assert(!SourceAction->getInputs().empty() && "unexpected root action!"); - SourceAction = SourceAction->getInputs()[0]; - } - - // Forward -g and handle debug info related flags, assuming we are dealing - // with an actual assembly file. - bool WantDebug = false; - unsigned DwarfVersion = 0; - Args.ClaimAllArgs(options::OPT_g_Group); - if (Arg *A = Args.getLastArg(options::OPT_g_Group)) { - WantDebug = !A->getOption().matches(options::OPT_g0) && - !A->getOption().matches(options::OPT_ggdb0); - if (WantDebug) - DwarfVersion = DwarfVersionNum(A->getSpelling()); - } - if (DwarfVersion == 0) - DwarfVersion = getToolChain().GetDefaultDwarfVersion(); - - codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo; - - if (SourceAction->getType() == types::TY_Asm || - SourceAction->getType() == types::TY_PP_Asm) { - // You might think that it would be ok to set DebugInfoKind outside of - // the guard for source type, however there is a test which asserts - // that some assembler invocation receives no -debug-info-kind, - // and it's not clear whether that test is just overly restrictive. - DebugInfoKind = (WantDebug ? codegenoptions::LimitedDebugInfo - : codegenoptions::NoDebugInfo); - // Add the -fdebug-compilation-dir flag if needed. - addDebugCompDirArg(Args, CmdArgs); - - // Set the AT_producer to the clang version when using the integrated - // assembler on assembly source files. - CmdArgs.push_back("-dwarf-debug-producer"); - CmdArgs.push_back(Args.MakeArgString(getClangFullVersion())); - - // And pass along -I options - Args.AddAllArgs(CmdArgs, options::OPT_I); - } - RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DwarfVersion, - llvm::DebuggerKind::Default); - - // Handle -fPIC et al -- the relocation-model affects the assembler - // for some targets. - llvm::Reloc::Model RelocationModel; - unsigned PICLevel; - bool IsPIE; - std::tie(RelocationModel, PICLevel, IsPIE) = - ParsePICArgs(getToolChain(), Args); - - const char *RMName = RelocationModelName(RelocationModel); - if (RMName) { - CmdArgs.push_back("-mrelocation-model"); - CmdArgs.push_back(RMName); - } - - // Optionally embed the -cc1as level arguments into the debug info, for build - // analysis. - if (getToolChain().UseDwarfDebugFlags()) { - ArgStringList OriginalArgs; - for (const auto &Arg : Args) - Arg->render(Args, OriginalArgs); - - SmallString<256> Flags; - const char *Exec = getToolChain().getDriver().getClangProgramPath(); - Flags += Exec; - for (const char *OriginalArg : OriginalArgs) { - SmallString<128> EscapedArg; - EscapeSpacesAndBackslashes(OriginalArg, EscapedArg); - Flags += " "; - Flags += EscapedArg; - } - CmdArgs.push_back("-dwarf-debug-flags"); - CmdArgs.push_back(Args.MakeArgString(Flags)); - } - - // FIXME: Add -static support, once we have it. - - // Add target specific flags. - switch (getToolChain().getArch()) { - default: - break; - - case llvm::Triple::mips: - case llvm::Triple::mipsel: - case llvm::Triple::mips64: - case llvm::Triple::mips64el: - AddMIPSTargetArgs(Args, CmdArgs); - break; - - case llvm::Triple::x86: - case llvm::Triple::x86_64: - AddX86TargetArgs(Args, CmdArgs); - break; - } - - // Consume all the warning flags. Usually this would be handled more - // gracefully by -cc1 (warning about unknown warning flags, etc) but -cc1as - // doesn't handle that so rather than warning about unused flags that are - // actually used, we'll lie by omission instead. - // FIXME: Stop lying and consume only the appropriate driver flags - Args.ClaimAllArgs(options::OPT_W_Group); - - CollectArgsForIntegratedAssembler(C, Args, CmdArgs, - getToolChain().getDriver()); - - Args.AddAllArgs(CmdArgs, options::OPT_mllvm); - - assert(Output.isFilename() && "Unexpected lipo output."); - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - assert(Input.isFilename() && "Invalid input."); - CmdArgs.push_back(Input.getFilename()); - - const char *Exec = getToolChain().getDriver().getClangProgramPath(); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); - - // Handle the debug info splitting at object creation time if we're - // creating an object. - // TODO: Currently only works on linux with newer objcopy. - if (Args.hasArg(options::OPT_gsplit_dwarf) && - getToolChain().getTriple().isOSLinux()) - SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output, - SplitDebugName(Args, Input)); -} - -void OffloadBundler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const llvm::opt::ArgList &TCArgs, - const char *LinkingOutput) const { - // The version with only one output is expected to refer to a bundling job. - assert(isa<OffloadBundlingJobAction>(JA) && "Expecting bundling job!"); - - // The bundling command looks like this: - // clang-offload-bundler -type=bc - // -targets=host-triple,openmp-triple1,openmp-triple2 - // -outputs=input_file - // -inputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2" - - ArgStringList CmdArgs; - - // Get the type. - CmdArgs.push_back(TCArgs.MakeArgString( - Twine("-type=") + types::getTypeTempSuffix(Output.getType()))); - - assert(JA.getInputs().size() == Inputs.size() && - "Not have inputs for all dependence actions??"); - - // Get the targets. - SmallString<128> Triples; - Triples += "-targets="; - for (unsigned I = 0; I < Inputs.size(); ++I) { - if (I) - Triples += ','; - - Action::OffloadKind CurKind = Action::OFK_Host; - const ToolChain *CurTC = &getToolChain(); - const Action *CurDep = JA.getInputs()[I]; - - if (const auto *OA = dyn_cast<OffloadAction>(CurDep)) { - OA->doOnEachDependence([&](Action *A, const ToolChain *TC, const char *) { - CurKind = A->getOffloadingDeviceKind(); - CurTC = TC; - }); - } - Triples += Action::GetOffloadKindName(CurKind); - Triples += '-'; - Triples += CurTC->getTriple().normalize(); - } - CmdArgs.push_back(TCArgs.MakeArgString(Triples)); - - // Get bundled file command. - CmdArgs.push_back( - TCArgs.MakeArgString(Twine("-outputs=") + Output.getFilename())); - - // Get unbundled files command. - SmallString<128> UB; - UB += "-inputs="; - for (unsigned I = 0; I < Inputs.size(); ++I) { - if (I) - UB += ','; - UB += Inputs[I].getFilename(); - } - CmdArgs.push_back(TCArgs.MakeArgString(UB)); - - // All the inputs are encoded as commands. - C.addCommand(llvm::make_unique<Command>( - JA, *this, - TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())), - CmdArgs, None)); -} - -void OffloadBundler::ConstructJobMultipleOutputs( - Compilation &C, const JobAction &JA, const InputInfoList &Outputs, - const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, - const char *LinkingOutput) const { - // The version with multiple outputs is expected to refer to a unbundling job. - auto &UA = cast<OffloadUnbundlingJobAction>(JA); - - // The unbundling command looks like this: - // clang-offload-bundler -type=bc - // -targets=host-triple,openmp-triple1,openmp-triple2 - // -inputs=input_file - // -outputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2" - // -unbundle - - ArgStringList CmdArgs; - - assert(Inputs.size() == 1 && "Expecting to unbundle a single file!"); - InputInfo Input = Inputs.front(); - - // Get the type. - CmdArgs.push_back(TCArgs.MakeArgString( - Twine("-type=") + types::getTypeTempSuffix(Input.getType()))); - - // Get the targets. - SmallString<128> Triples; - Triples += "-targets="; - auto DepInfo = UA.getDependentActionsInfo(); - for (unsigned I = 0; I < DepInfo.size(); ++I) { - if (I) - Triples += ','; - - auto &Dep = DepInfo[I]; - Triples += Action::GetOffloadKindName(Dep.DependentOffloadKind); - Triples += '-'; - Triples += Dep.DependentToolChain->getTriple().normalize(); - } - - CmdArgs.push_back(TCArgs.MakeArgString(Triples)); - - // Get bundled file command. - CmdArgs.push_back( - TCArgs.MakeArgString(Twine("-inputs=") + Input.getFilename())); - - // Get unbundled files command. - SmallString<128> UB; - UB += "-outputs="; - for (unsigned I = 0; I < Outputs.size(); ++I) { - if (I) - UB += ','; - UB += Outputs[I].getFilename(); - } - CmdArgs.push_back(TCArgs.MakeArgString(UB)); - CmdArgs.push_back("-unbundle"); - - // All the inputs are encoded as commands. - C.addCommand(llvm::make_unique<Command>( - JA, *this, - TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())), - CmdArgs, None)); -} - -void GnuTool::anchor() {} - -void gcc::Common::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, const ArgList &Args, - const char *LinkingOutput) const { - const Driver &D = getToolChain().getDriver(); - ArgStringList CmdArgs; - - for (const auto &A : Args) { - if (forwardToGCC(A->getOption())) { - // It is unfortunate that we have to claim here, as this means - // we will basically never report anything interesting for - // platforms using a generic gcc, even if we are just using gcc - // to get to the assembler. - A->claim(); - - // Don't forward any -g arguments to assembly steps. - if (isa<AssembleJobAction>(JA) && - A->getOption().matches(options::OPT_g_Group)) - continue; - - // Don't forward any -W arguments to assembly and link steps. - if ((isa<AssembleJobAction>(JA) || isa<LinkJobAction>(JA)) && - A->getOption().matches(options::OPT_W_Group)) - continue; - - A->render(Args, CmdArgs); - } - } - - RenderExtraToolArgs(JA, CmdArgs); - - // If using a driver driver, force the arch. - if (getToolChain().getTriple().isOSDarwin()) { - CmdArgs.push_back("-arch"); - CmdArgs.push_back( - Args.MakeArgString(getToolChain().getDefaultUniversalArchName())); - } - - // Try to force gcc to match the tool chain we want, if we recognize - // the arch. - // - // FIXME: The triple class should directly provide the information we want - // here. - switch (getToolChain().getArch()) { - default: - break; - case llvm::Triple::x86: - case llvm::Triple::ppc: - CmdArgs.push_back("-m32"); - break; - case llvm::Triple::x86_64: - case llvm::Triple::ppc64: - case llvm::Triple::ppc64le: - CmdArgs.push_back("-m64"); - break; - case llvm::Triple::sparcel: - CmdArgs.push_back("-EL"); - break; - } - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Unexpected output"); - CmdArgs.push_back("-fsyntax-only"); - } - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - // Only pass -x if gcc will understand it; otherwise hope gcc - // understands the suffix correctly. The main use case this would go - // wrong in is for linker inputs if they happened to have an odd - // suffix; really the only way to get this to happen is a command - // like '-x foobar a.c' which will treat a.c like a linker input. - // - // FIXME: For the linker case specifically, can we safely convert - // inputs into '-Wl,' options? - for (const auto &II : Inputs) { - // Don't try to pass LLVM or AST inputs to a generic gcc. - if (types::isLLVMIR(II.getType())) - D.Diag(diag::err_drv_no_linker_llvm_support) - << getToolChain().getTripleString(); - else if (II.getType() == types::TY_AST) - D.Diag(diag::err_drv_no_ast_support) << getToolChain().getTripleString(); - else if (II.getType() == types::TY_ModuleFile) - D.Diag(diag::err_drv_no_module_support) - << getToolChain().getTripleString(); - - if (types::canTypeBeUserSpecified(II.getType())) { - CmdArgs.push_back("-x"); - CmdArgs.push_back(types::getTypeName(II.getType())); - } - - if (II.isFilename()) - CmdArgs.push_back(II.getFilename()); - else { - const Arg &A = II.getInputArg(); - - // Reverse translate some rewritten options. - if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) { - CmdArgs.push_back("-lstdc++"); - continue; - } - - // Don't render as input, we need gcc to do the translations. - A.render(Args, CmdArgs); - } - } - - const std::string &customGCCName = D.getCCCGenericGCCName(); - const char *GCCName; - if (!customGCCName.empty()) - GCCName = customGCCName.c_str(); - else if (D.CCCIsCXX()) { - GCCName = "g++"; - } else - GCCName = "gcc"; - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath(GCCName)); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void gcc::Preprocessor::RenderExtraToolArgs(const JobAction &JA, - ArgStringList &CmdArgs) const { - CmdArgs.push_back("-E"); -} - -void gcc::Compiler::RenderExtraToolArgs(const JobAction &JA, - ArgStringList &CmdArgs) const { - const Driver &D = getToolChain().getDriver(); - - switch (JA.getType()) { - // If -flto, etc. are present then make sure not to force assembly output. - case types::TY_LLVM_IR: - case types::TY_LTO_IR: - case types::TY_LLVM_BC: - case types::TY_LTO_BC: - CmdArgs.push_back("-c"); - break; - // We assume we've got an "integrated" assembler in that gcc will produce an - // object file itself. - case types::TY_Object: - CmdArgs.push_back("-c"); - break; - case types::TY_PP_Asm: - CmdArgs.push_back("-S"); - break; - case types::TY_Nothing: - CmdArgs.push_back("-fsyntax-only"); - break; - default: - D.Diag(diag::err_drv_invalid_gcc_output_type) << getTypeName(JA.getType()); - } -} - -void gcc::Linker::RenderExtraToolArgs(const JobAction &JA, - ArgStringList &CmdArgs) const { - // The types are (hopefully) good enough. -} - -// Hexagon tools start. -void hexagon::Assembler::RenderExtraToolArgs(const JobAction &JA, - ArgStringList &CmdArgs) const { -} - -void hexagon::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - - auto &HTC = static_cast<const toolchains::HexagonToolChain&>(getToolChain()); - const Driver &D = HTC.getDriver(); - ArgStringList CmdArgs; - - std::string MArchString = "-march=hexagon"; - CmdArgs.push_back(Args.MakeArgString(MArchString)); - - RenderExtraToolArgs(JA, CmdArgs); - - std::string AsName = "hexagon-llvm-mc"; - std::string MCpuString = "-mcpu=hexagon" + - toolchains::HexagonToolChain::GetTargetCPUVersion(Args).str(); - CmdArgs.push_back("-filetype=obj"); - CmdArgs.push_back(Args.MakeArgString(MCpuString)); - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Unexpected output"); - CmdArgs.push_back("-fsyntax-only"); - } - - if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) { - std::string N = llvm::utostr(G.getValue()); - CmdArgs.push_back(Args.MakeArgString(std::string("-gpsize=") + N)); - } - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - // Only pass -x if gcc will understand it; otherwise hope gcc - // understands the suffix correctly. The main use case this would go - // wrong in is for linker inputs if they happened to have an odd - // suffix; really the only way to get this to happen is a command - // like '-x foobar a.c' which will treat a.c like a linker input. - // - // FIXME: For the linker case specifically, can we safely convert - // inputs into '-Wl,' options? - for (const auto &II : Inputs) { - // Don't try to pass LLVM or AST inputs to a generic gcc. - if (types::isLLVMIR(II.getType())) - D.Diag(clang::diag::err_drv_no_linker_llvm_support) - << HTC.getTripleString(); - else if (II.getType() == types::TY_AST) - D.Diag(clang::diag::err_drv_no_ast_support) - << HTC.getTripleString(); - else if (II.getType() == types::TY_ModuleFile) - D.Diag(diag::err_drv_no_module_support) - << HTC.getTripleString(); - - if (II.isFilename()) - CmdArgs.push_back(II.getFilename()); - else - // Don't render as input, we need gcc to do the translations. - // FIXME: What is this? - II.getInputArg().render(Args, CmdArgs); - } - - auto *Exec = Args.MakeArgString(HTC.GetProgramPath(AsName.c_str())); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void hexagon::Linker::RenderExtraToolArgs(const JobAction &JA, - ArgStringList &CmdArgs) const { -} - -static void -constructHexagonLinkArgs(Compilation &C, const JobAction &JA, - const toolchains::HexagonToolChain &HTC, - const InputInfo &Output, const InputInfoList &Inputs, - const ArgList &Args, ArgStringList &CmdArgs, - const char *LinkingOutput) { - - const Driver &D = HTC.getDriver(); - - //---------------------------------------------------------------------------- - // - //---------------------------------------------------------------------------- - bool IsStatic = Args.hasArg(options::OPT_static); - bool IsShared = Args.hasArg(options::OPT_shared); - bool IsPIE = Args.hasArg(options::OPT_pie); - bool IncStdLib = !Args.hasArg(options::OPT_nostdlib); - bool IncStartFiles = !Args.hasArg(options::OPT_nostartfiles); - bool IncDefLibs = !Args.hasArg(options::OPT_nodefaultlibs); - bool UseG0 = false; - bool UseShared = IsShared && !IsStatic; - - //---------------------------------------------------------------------------- - // Silence warnings for various options - //---------------------------------------------------------------------------- - Args.ClaimAllArgs(options::OPT_g_Group); - Args.ClaimAllArgs(options::OPT_emit_llvm); - Args.ClaimAllArgs(options::OPT_w); // Other warning options are already - // handled somewhere else. - Args.ClaimAllArgs(options::OPT_static_libgcc); - - //---------------------------------------------------------------------------- - // - //---------------------------------------------------------------------------- - if (Args.hasArg(options::OPT_s)) - CmdArgs.push_back("-s"); - - if (Args.hasArg(options::OPT_r)) - CmdArgs.push_back("-r"); - - for (const auto &Opt : HTC.ExtraOpts) - CmdArgs.push_back(Opt.c_str()); - - CmdArgs.push_back("-march=hexagon"); - std::string CpuVer = - toolchains::HexagonToolChain::GetTargetCPUVersion(Args).str(); - std::string MCpuString = "-mcpu=hexagon" + CpuVer; - CmdArgs.push_back(Args.MakeArgString(MCpuString)); - - if (IsShared) { - CmdArgs.push_back("-shared"); - // The following should be the default, but doing as hexagon-gcc does. - CmdArgs.push_back("-call_shared"); - } - - if (IsStatic) - CmdArgs.push_back("-static"); - - if (IsPIE && !IsShared) - CmdArgs.push_back("-pie"); - - if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) { - std::string N = llvm::utostr(G.getValue()); - CmdArgs.push_back(Args.MakeArgString(std::string("-G") + N)); - UseG0 = G.getValue() == 0; - } - - //---------------------------------------------------------------------------- - // - //---------------------------------------------------------------------------- - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - //---------------------------------------------------------------------------- - // moslib - //---------------------------------------------------------------------------- - std::vector<std::string> OsLibs; - bool HasStandalone = false; - - for (const Arg *A : Args.filtered(options::OPT_moslib_EQ)) { - A->claim(); - OsLibs.emplace_back(A->getValue()); - HasStandalone = HasStandalone || (OsLibs.back() == "standalone"); - } - if (OsLibs.empty()) { - OsLibs.push_back("standalone"); - HasStandalone = true; - } - - //---------------------------------------------------------------------------- - // Start Files - //---------------------------------------------------------------------------- - const std::string MCpuSuffix = "/" + CpuVer; - const std::string MCpuG0Suffix = MCpuSuffix + "/G0"; - const std::string RootDir = - HTC.getHexagonTargetDir(D.InstalledDir, D.PrefixDirs) + "/"; - const std::string StartSubDir = - "hexagon/lib" + (UseG0 ? MCpuG0Suffix : MCpuSuffix); - - auto Find = [&HTC] (const std::string &RootDir, const std::string &SubDir, - const char *Name) -> std::string { - std::string RelName = SubDir + Name; - std::string P = HTC.GetFilePath(RelName.c_str()); - if (llvm::sys::fs::exists(P)) - return P; - return RootDir + RelName; - }; - - if (IncStdLib && IncStartFiles) { - if (!IsShared) { - if (HasStandalone) { - std::string Crt0SA = Find(RootDir, StartSubDir, "/crt0_standalone.o"); - CmdArgs.push_back(Args.MakeArgString(Crt0SA)); - } - std::string Crt0 = Find(RootDir, StartSubDir, "/crt0.o"); - CmdArgs.push_back(Args.MakeArgString(Crt0)); - } - std::string Init = UseShared - ? Find(RootDir, StartSubDir + "/pic", "/initS.o") - : Find(RootDir, StartSubDir, "/init.o"); - CmdArgs.push_back(Args.MakeArgString(Init)); - } - - //---------------------------------------------------------------------------- - // Library Search Paths - //---------------------------------------------------------------------------- - const ToolChain::path_list &LibPaths = HTC.getFilePaths(); - for (const auto &LibPath : LibPaths) - CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath)); - - //---------------------------------------------------------------------------- - // - //---------------------------------------------------------------------------- - Args.AddAllArgs(CmdArgs, - {options::OPT_T_Group, options::OPT_e, options::OPT_s, - options::OPT_t, options::OPT_u_Group}); - - AddLinkerInputs(HTC, Inputs, Args, CmdArgs, JA); - - //---------------------------------------------------------------------------- - // Libraries - //---------------------------------------------------------------------------- - if (IncStdLib && IncDefLibs) { - if (D.CCCIsCXX()) { - HTC.AddCXXStdlibLibArgs(Args, CmdArgs); - CmdArgs.push_back("-lm"); - } - - CmdArgs.push_back("--start-group"); - - if (!IsShared) { - for (const std::string &Lib : OsLibs) - CmdArgs.push_back(Args.MakeArgString("-l" + Lib)); - CmdArgs.push_back("-lc"); - } - CmdArgs.push_back("-lgcc"); - - CmdArgs.push_back("--end-group"); - } - - //---------------------------------------------------------------------------- - // End files - //---------------------------------------------------------------------------- - if (IncStdLib && IncStartFiles) { - std::string Fini = UseShared - ? Find(RootDir, StartSubDir + "/pic", "/finiS.o") - : Find(RootDir, StartSubDir, "/fini.o"); - CmdArgs.push_back(Args.MakeArgString(Fini)); - } -} - -void hexagon::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - auto &HTC = static_cast<const toolchains::HexagonToolChain&>(getToolChain()); - - ArgStringList CmdArgs; - constructHexagonLinkArgs(C, JA, HTC, Output, Inputs, Args, CmdArgs, - LinkingOutput); - - std::string Linker = HTC.GetProgramPath("hexagon-link"); - C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Linker), - CmdArgs, Inputs)); -} -// Hexagon tools end. - -void amdgpu::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - - std::string Linker = getToolChain().GetProgramPath(getShortName()); - ArgStringList CmdArgs; - AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); - CmdArgs.push_back("-shared"); - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Linker), - CmdArgs, Inputs)); -} -// AMDGPU tools end. - -wasm::Linker::Linker(const ToolChain &TC) - : GnuTool("wasm::Linker", "lld", TC) {} - -bool wasm::Linker::isLinkJob() const { - return true; -} - -bool wasm::Linker::hasIntegratedCPP() const { - return false; -} - -void wasm::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - - const ToolChain &ToolChain = getToolChain(); - const Driver &D = ToolChain.getDriver(); - const char *Linker = Args.MakeArgString(ToolChain.GetLinkerPath()); - ArgStringList CmdArgs; - CmdArgs.push_back("-flavor"); - CmdArgs.push_back("ld"); - - // Enable garbage collection of unused input sections by default, since code - // size is of particular importance. This is significantly facilitated by - // the enabling of -ffunction-sections and -fdata-sections in - // Clang::ConstructJob. - if (areOptimizationsEnabled(Args)) - CmdArgs.push_back("--gc-sections"); - - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - if (Args.hasArg(options::OPT_s)) - CmdArgs.push_back("--strip-all"); - if (Args.hasArg(options::OPT_shared)) - CmdArgs.push_back("-shared"); - if (Args.hasArg(options::OPT_static)) - CmdArgs.push_back("-Bstatic"); - - Args.AddAllArgs(CmdArgs, options::OPT_L); - ToolChain.AddFilePathLibArgs(Args, CmdArgs); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (Args.hasArg(options::OPT_shared)) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("rcrt1.o"))); - else if (Args.hasArg(options::OPT_pie)) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("Scrt1.o"))); - else - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt1.o"))); - - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); - } - - AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - if (D.CCCIsCXX()) - ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); - - if (Args.hasArg(options::OPT_pthread)) - CmdArgs.push_back("-lpthread"); - - CmdArgs.push_back("-lc"); - CmdArgs.push_back("-lcompiler_rt"); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - C.addCommand(llvm::make_unique<Command>(JA, *this, Linker, CmdArgs, Inputs)); -} - -const std::string arm::getARMArch(StringRef Arch, const llvm::Triple &Triple) { - std::string MArch; - if (!Arch.empty()) - MArch = Arch; - else - MArch = Triple.getArchName(); - MArch = StringRef(MArch).split("+").first.lower(); - - // Handle -march=native. - if (MArch == "native") { - std::string CPU = llvm::sys::getHostCPUName(); - if (CPU != "generic") { - // Translate the native cpu into the architecture suffix for that CPU. - StringRef Suffix = arm::getLLVMArchSuffixForARM(CPU, MArch, Triple); - // If there is no valid architecture suffix for this CPU we don't know how - // to handle it, so return no architecture. - if (Suffix.empty()) - MArch = ""; - else - MArch = std::string("arm") + Suffix.str(); - } - } - - return MArch; -} - -/// Get the (LLVM) name of the minimum ARM CPU for the arch we are targeting. -StringRef arm::getARMCPUForMArch(StringRef Arch, const llvm::Triple &Triple) { - std::string MArch = getARMArch(Arch, Triple); - // getARMCPUForArch defaults to the triple if MArch is empty, but empty MArch - // here means an -march=native that we can't handle, so instead return no CPU. - if (MArch.empty()) - return StringRef(); - - // We need to return an empty string here on invalid MArch values as the - // various places that call this function can't cope with a null result. - return Triple.getARMCPUForArch(MArch); -} - -/// getARMTargetCPU - Get the (LLVM) name of the ARM cpu we are targeting. -std::string arm::getARMTargetCPU(StringRef CPU, StringRef Arch, - const llvm::Triple &Triple) { - // FIXME: Warn on inconsistent use of -mcpu and -march. - // If we have -mcpu=, use that. - if (!CPU.empty()) { - std::string MCPU = StringRef(CPU).split("+").first.lower(); - // Handle -mcpu=native. - if (MCPU == "native") - return llvm::sys::getHostCPUName(); - else - return MCPU; - } - - return getARMCPUForMArch(Arch, Triple); -} - -/// getLLVMArchSuffixForARM - Get the LLVM arch name to use for a particular -/// CPU (or Arch, if CPU is generic). -// FIXME: This is redundant with -mcpu, why does LLVM use this. -StringRef arm::getLLVMArchSuffixForARM(StringRef CPU, StringRef Arch, - const llvm::Triple &Triple) { - unsigned ArchKind; - if (CPU == "generic") { - std::string ARMArch = tools::arm::getARMArch(Arch, Triple); - ArchKind = llvm::ARM::parseArch(ARMArch); - if (ArchKind == llvm::ARM::AK_INVALID) - // In case of generic Arch, i.e. "arm", - // extract arch from default cpu of the Triple - ArchKind = llvm::ARM::parseCPUArch(Triple.getARMCPUForArch(ARMArch)); - } else { - // FIXME: horrible hack to get around the fact that Cortex-A7 is only an - // armv7k triple if it's actually been specified via "-arch armv7k". - ArchKind = (Arch == "armv7k" || Arch == "thumbv7k") - ? (unsigned)llvm::ARM::AK_ARMV7K - : llvm::ARM::parseCPUArch(CPU); - } - if (ArchKind == llvm::ARM::AK_INVALID) - return ""; - return llvm::ARM::getSubArch(ArchKind); -} - -void arm::appendEBLinkFlags(const ArgList &Args, ArgStringList &CmdArgs, - const llvm::Triple &Triple) { - if (Args.hasArg(options::OPT_r)) - return; - - // ARMv7 (and later) and ARMv6-M do not support BE-32, so instruct the linker - // to generate BE-8 executables. - if (getARMSubArchVersionNumber(Triple) >= 7 || isARMMProfile(Triple)) - CmdArgs.push_back("--be8"); -} - -mips::NanEncoding mips::getSupportedNanEncoding(StringRef &CPU) { - // Strictly speaking, mips32r2 and mips64r2 are NanLegacy-only since Nan2008 - // was first introduced in Release 3. However, other compilers have - // traditionally allowed it for Release 2 so we should do the same. - return (NanEncoding)llvm::StringSwitch<int>(CPU) - .Case("mips1", NanLegacy) - .Case("mips2", NanLegacy) - .Case("mips3", NanLegacy) - .Case("mips4", NanLegacy) - .Case("mips5", NanLegacy) - .Case("mips32", NanLegacy) - .Case("mips32r2", NanLegacy | Nan2008) - .Case("mips32r3", NanLegacy | Nan2008) - .Case("mips32r5", NanLegacy | Nan2008) - .Case("mips32r6", Nan2008) - .Case("mips64", NanLegacy) - .Case("mips64r2", NanLegacy | Nan2008) - .Case("mips64r3", NanLegacy | Nan2008) - .Case("mips64r5", NanLegacy | Nan2008) - .Case("mips64r6", Nan2008) - .Default(NanLegacy); -} - -bool mips::hasCompactBranches(StringRef &CPU) { - // mips32r6 and mips64r6 have compact branches. - return llvm::StringSwitch<bool>(CPU) - .Case("mips32r6", true) - .Case("mips64r6", true) - .Default(false); -} - -bool mips::hasMipsAbiArg(const ArgList &Args, const char *Value) { - Arg *A = Args.getLastArg(options::OPT_mabi_EQ); - return A && (A->getValue() == StringRef(Value)); -} - -bool mips::isUCLibc(const ArgList &Args) { - Arg *A = Args.getLastArg(options::OPT_m_libc_Group); - return A && A->getOption().matches(options::OPT_muclibc); -} - -bool mips::isNaN2008(const ArgList &Args, const llvm::Triple &Triple) { - if (Arg *NaNArg = Args.getLastArg(options::OPT_mnan_EQ)) - return llvm::StringSwitch<bool>(NaNArg->getValue()) - .Case("2008", true) - .Case("legacy", false) - .Default(false); - - // NaN2008 is the default for MIPS32r6/MIPS64r6. - return llvm::StringSwitch<bool>(getCPUName(Args, Triple)) - .Cases("mips32r6", "mips64r6", true) - .Default(false); - - return false; -} - -bool mips::isFP64ADefault(const llvm::Triple &Triple, StringRef CPUName) { - if (!Triple.isAndroid()) - return false; - - // Android MIPS32R6 defaults to FP64A. - return llvm::StringSwitch<bool>(CPUName) - .Case("mips32r6", true) - .Default(false); -} - -bool mips::isFPXXDefault(const llvm::Triple &Triple, StringRef CPUName, - StringRef ABIName, mips::FloatABI FloatABI) { - if (Triple.getVendor() != llvm::Triple::ImaginationTechnologies && - Triple.getVendor() != llvm::Triple::MipsTechnologies && - !Triple.isAndroid()) - return false; - - if (ABIName != "32") - return false; - - // FPXX shouldn't be used if either -msoft-float or -mfloat-abi=soft is - // present. - if (FloatABI == mips::FloatABI::Soft) - return false; - - return llvm::StringSwitch<bool>(CPUName) - .Cases("mips2", "mips3", "mips4", "mips5", true) - .Cases("mips32", "mips32r2", "mips32r3", "mips32r5", true) - .Cases("mips64", "mips64r2", "mips64r3", "mips64r5", true) - .Default(false); -} - -bool mips::shouldUseFPXX(const ArgList &Args, const llvm::Triple &Triple, - StringRef CPUName, StringRef ABIName, - mips::FloatABI FloatABI) { - bool UseFPXX = isFPXXDefault(Triple, CPUName, ABIName, FloatABI); - - // FPXX shouldn't be used if -msingle-float is present. - if (Arg *A = Args.getLastArg(options::OPT_msingle_float, - options::OPT_mdouble_float)) - if (A->getOption().matches(options::OPT_msingle_float)) - UseFPXX = false; - - return UseFPXX; -} - -llvm::Triple::ArchType darwin::getArchTypeForMachOArchName(StringRef Str) { - // See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for - // archs which Darwin doesn't use. - - // The matching this routine does is fairly pointless, since it is neither the - // complete architecture list, nor a reasonable subset. The problem is that - // historically the driver driver accepts this and also ties its -march= - // handling to the architecture name, so we need to be careful before removing - // support for it. - - // This code must be kept in sync with Clang's Darwin specific argument - // translation. - - return llvm::StringSwitch<llvm::Triple::ArchType>(Str) - .Cases("ppc", "ppc601", "ppc603", "ppc604", "ppc604e", llvm::Triple::ppc) - .Cases("ppc750", "ppc7400", "ppc7450", "ppc970", llvm::Triple::ppc) - .Case("ppc64", llvm::Triple::ppc64) - .Cases("i386", "i486", "i486SX", "i586", "i686", llvm::Triple::x86) - .Cases("pentium", "pentpro", "pentIIm3", "pentIIm5", "pentium4", - llvm::Triple::x86) - .Cases("x86_64", "x86_64h", llvm::Triple::x86_64) - // This is derived from the driver driver. - .Cases("arm", "armv4t", "armv5", "armv6", "armv6m", llvm::Triple::arm) - .Cases("armv7", "armv7em", "armv7k", "armv7m", llvm::Triple::arm) - .Cases("armv7s", "xscale", llvm::Triple::arm) - .Case("arm64", llvm::Triple::aarch64) - .Case("r600", llvm::Triple::r600) - .Case("amdgcn", llvm::Triple::amdgcn) - .Case("nvptx", llvm::Triple::nvptx) - .Case("nvptx64", llvm::Triple::nvptx64) - .Case("amdil", llvm::Triple::amdil) - .Case("spir", llvm::Triple::spir) - .Default(llvm::Triple::UnknownArch); -} - -void darwin::setTripleTypeForMachOArchName(llvm::Triple &T, StringRef Str) { - const llvm::Triple::ArchType Arch = getArchTypeForMachOArchName(Str); - unsigned ArchKind = llvm::ARM::parseArch(Str); - T.setArch(Arch); - - if (Str == "x86_64h") - T.setArchName(Str); - else if (ArchKind == llvm::ARM::AK_ARMV6M || - ArchKind == llvm::ARM::AK_ARMV7M || - ArchKind == llvm::ARM::AK_ARMV7EM) { - T.setOS(llvm::Triple::UnknownOS); - T.setObjectFormat(llvm::Triple::MachO); - } -} - -const char *Clang::getBaseInputName(const ArgList &Args, - const InputInfo &Input) { - return Args.MakeArgString(llvm::sys::path::filename(Input.getBaseInput())); -} - -const char *Clang::getBaseInputStem(const ArgList &Args, - const InputInfoList &Inputs) { - const char *Str = getBaseInputName(Args, Inputs[0]); - - if (const char *End = strrchr(Str, '.')) - return Args.MakeArgString(std::string(Str, End)); - - return Str; -} - -const char *Clang::getDependencyFileName(const ArgList &Args, - const InputInfoList &Inputs) { - // FIXME: Think about this more. - std::string Res; - - if (Arg *OutputOpt = Args.getLastArg(options::OPT_o)) { - std::string Str(OutputOpt->getValue()); - Res = Str.substr(0, Str.rfind('.')); - } else { - Res = getBaseInputStem(Args, Inputs); - } - return Args.MakeArgString(Res + ".d"); -} - -void cloudabi::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const ToolChain &ToolChain = getToolChain(); - const Driver &D = ToolChain.getDriver(); - ArgStringList CmdArgs; - - // Silence warning for "clang -g foo.o -o foo" - Args.ClaimAllArgs(options::OPT_g_Group); - // and "clang -emit-llvm foo.o -o foo" - Args.ClaimAllArgs(options::OPT_emit_llvm); - // and for "clang -w foo.o -o foo". Other warning options are already - // handled somewhere else. - Args.ClaimAllArgs(options::OPT_w); - - if (!D.SysRoot.empty()) - CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); - - // CloudABI only supports static linkage. - CmdArgs.push_back("-Bstatic"); - CmdArgs.push_back("--no-dynamic-linker"); - - // Provide PIE linker flags in case PIE is default for the architecture. - if (ToolChain.isPIEDefault()) { - CmdArgs.push_back("-pie"); - CmdArgs.push_back("-zrelro"); - } - - CmdArgs.push_back("--eh-frame-hdr"); - CmdArgs.push_back("--gc-sections"); - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o"))); - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbegin.o"))); - } - - Args.AddAllArgs(CmdArgs, options::OPT_L); - ToolChain.AddFilePathLibArgs(Args, CmdArgs); - Args.AddAllArgs(CmdArgs, - {options::OPT_T_Group, options::OPT_e, options::OPT_s, - options::OPT_t, options::OPT_Z_Flag, options::OPT_r}); - - if (D.isUsingLTO()) - AddGoldPlugin(ToolChain, Args, CmdArgs, D.getLTOMode() == LTOK_Thin, D); - - AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - if (D.CCCIsCXX()) - ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); - CmdArgs.push_back("-lc"); - CmdArgs.push_back("-lcompiler_rt"); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o"))); - - const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void darwin::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - ArgStringList CmdArgs; - - assert(Inputs.size() == 1 && "Unexpected number of inputs."); - const InputInfo &Input = Inputs[0]; - - // Determine the original source input. - const Action *SourceAction = &JA; - while (SourceAction->getKind() != Action::InputClass) { - assert(!SourceAction->getInputs().empty() && "unexpected root action!"); - SourceAction = SourceAction->getInputs()[0]; - } - - // If -fno-integrated-as is used add -Q to the darwin assember driver to make - // sure it runs its system assembler not clang's integrated assembler. - // Applicable to darwin11+ and Xcode 4+. darwin<10 lacked integrated-as. - // FIXME: at run-time detect assembler capabilities or rely on version - // information forwarded by -target-assembler-version. - if (Args.hasArg(options::OPT_fno_integrated_as)) { - const llvm::Triple &T(getToolChain().getTriple()); - if (!(T.isMacOSX() && T.isMacOSXVersionLT(10, 7))) - CmdArgs.push_back("-Q"); - } - - // Forward -g, assuming we are dealing with an actual assembly file. - if (SourceAction->getType() == types::TY_Asm || - SourceAction->getType() == types::TY_PP_Asm) { - if (Args.hasArg(options::OPT_gstabs)) - CmdArgs.push_back("--gstabs"); - else if (Args.hasArg(options::OPT_g_Group)) - CmdArgs.push_back("-g"); - } - - // Derived from asm spec. - AddMachOArch(Args, CmdArgs); - - // Use -force_cpusubtype_ALL on x86 by default. - if (getToolChain().getArch() == llvm::Triple::x86 || - getToolChain().getArch() == llvm::Triple::x86_64 || - Args.hasArg(options::OPT_force__cpusubtype__ALL)) - CmdArgs.push_back("-force_cpusubtype_ALL"); - - if (getToolChain().getArch() != llvm::Triple::x86_64 && - (((Args.hasArg(options::OPT_mkernel) || - Args.hasArg(options::OPT_fapple_kext)) && - getMachOToolChain().isKernelStatic()) || - Args.hasArg(options::OPT_static))) - CmdArgs.push_back("-static"); - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - assert(Output.isFilename() && "Unexpected lipo output."); - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - assert(Input.isFilename() && "Invalid input."); - CmdArgs.push_back(Input.getFilename()); - - // asm_final spec is empty. - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void darwin::MachOTool::anchor() {} - -void darwin::MachOTool::AddMachOArch(const ArgList &Args, - ArgStringList &CmdArgs) const { - StringRef ArchName = getMachOToolChain().getMachOArchName(Args); - - // Derived from darwin_arch spec. - CmdArgs.push_back("-arch"); - CmdArgs.push_back(Args.MakeArgString(ArchName)); - - // FIXME: Is this needed anymore? - if (ArchName == "arm") - CmdArgs.push_back("-force_cpusubtype_ALL"); -} - -bool darwin::Linker::NeedsTempPath(const InputInfoList &Inputs) const { - // We only need to generate a temp path for LTO if we aren't compiling object - // files. When compiling source files, we run 'dsymutil' after linking. We - // don't run 'dsymutil' when compiling object files. - for (const auto &Input : Inputs) - if (Input.getType() != types::TY_Object) - return true; - - return false; -} - -/// \brief Pass -no_deduplicate to ld64 under certain conditions: -/// -/// - Either -O0 or -O1 is explicitly specified -/// - No -O option is specified *and* this is a compile+link (implicit -O0) -/// -/// Also do *not* add -no_deduplicate when no -O option is specified and this -/// is just a link (we can't imply -O0) -static bool shouldLinkerNotDedup(bool IsLinkerOnlyAction, const ArgList &Args) { - if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { - if (A->getOption().matches(options::OPT_O0)) - return true; - if (A->getOption().matches(options::OPT_O)) - return llvm::StringSwitch<bool>(A->getValue()) - .Case("1", true) - .Default(false); - return false; // OPT_Ofast & OPT_O4 - } - - if (!IsLinkerOnlyAction) // Implicit -O0 for compile+linker only. - return true; - return false; -} - -void darwin::Linker::AddLinkArgs(Compilation &C, const ArgList &Args, - ArgStringList &CmdArgs, - const InputInfoList &Inputs) const { - const Driver &D = getToolChain().getDriver(); - const toolchains::MachO &MachOTC = getMachOToolChain(); - - unsigned Version[5] = {0, 0, 0, 0, 0}; - if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) { - if (!Driver::GetReleaseVersion(A->getValue(), Version)) - D.Diag(diag::err_drv_invalid_version_number) << A->getAsString(Args); - } - - // Newer linkers support -demangle. Pass it if supported and not disabled by - // the user. - if (Version[0] >= 100 && !Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) - CmdArgs.push_back("-demangle"); - - if (Args.hasArg(options::OPT_rdynamic) && Version[0] >= 137) - CmdArgs.push_back("-export_dynamic"); - - // If we are using App Extension restrictions, pass a flag to the linker - // telling it that the compiled code has been audited. - if (Args.hasFlag(options::OPT_fapplication_extension, - options::OPT_fno_application_extension, false)) - CmdArgs.push_back("-application_extension"); - - if (D.isUsingLTO()) { - // If we are using LTO, then automatically create a temporary file path for - // the linker to use, so that it's lifetime will extend past a possible - // dsymutil step. - if (Version[0] >= 116 && NeedsTempPath(Inputs)) { - const char *TmpPath = C.getArgs().MakeArgString( - D.GetTemporaryPath("cc", types::getTypeTempSuffix(types::TY_Object))); - C.addTempFile(TmpPath); - CmdArgs.push_back("-object_path_lto"); - CmdArgs.push_back(TmpPath); - } - } - - // Use -lto_library option to specify the libLTO.dylib path. Try to find - // it in clang installed libraries. ld64 will only look at this argument - // when it actually uses LTO, so libLTO.dylib only needs to exist at link - // time if ld64 decides that it needs to use LTO. - // Since this is passed unconditionally, ld64 will never look for libLTO.dylib - // next to it. That's ok since ld64 using a libLTO.dylib not matching the - // clang version won't work anyways. - if (Version[0] >= 133) { - // Search for libLTO in <InstalledDir>/../lib/libLTO.dylib - StringRef P = llvm::sys::path::parent_path(D.Dir); - SmallString<128> LibLTOPath(P); - llvm::sys::path::append(LibLTOPath, "lib"); - llvm::sys::path::append(LibLTOPath, "libLTO.dylib"); - CmdArgs.push_back("-lto_library"); - CmdArgs.push_back(C.getArgs().MakeArgString(LibLTOPath)); - } - - // ld64 version 262 and above run the deduplicate pass by default. - if (Version[0] >= 262 && shouldLinkerNotDedup(C.getJobs().empty(), Args)) - CmdArgs.push_back("-no_deduplicate"); - - // Derived from the "link" spec. - Args.AddAllArgs(CmdArgs, options::OPT_static); - if (!Args.hasArg(options::OPT_static)) - CmdArgs.push_back("-dynamic"); - if (Args.hasArg(options::OPT_fgnu_runtime)) { - // FIXME: gcc replaces -lobjc in forward args with -lobjc-gnu - // here. How do we wish to handle such things? - } - - if (!Args.hasArg(options::OPT_dynamiclib)) { - AddMachOArch(Args, CmdArgs); - // FIXME: Why do this only on this path? - Args.AddLastArg(CmdArgs, options::OPT_force__cpusubtype__ALL); - - Args.AddLastArg(CmdArgs, options::OPT_bundle); - Args.AddAllArgs(CmdArgs, options::OPT_bundle__loader); - Args.AddAllArgs(CmdArgs, options::OPT_client__name); - - Arg *A; - if ((A = Args.getLastArg(options::OPT_compatibility__version)) || - (A = Args.getLastArg(options::OPT_current__version)) || - (A = Args.getLastArg(options::OPT_install__name))) - D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args) - << "-dynamiclib"; - - Args.AddLastArg(CmdArgs, options::OPT_force__flat__namespace); - Args.AddLastArg(CmdArgs, options::OPT_keep__private__externs); - Args.AddLastArg(CmdArgs, options::OPT_private__bundle); - } else { - CmdArgs.push_back("-dylib"); - - Arg *A; - if ((A = Args.getLastArg(options::OPT_bundle)) || - (A = Args.getLastArg(options::OPT_bundle__loader)) || - (A = Args.getLastArg(options::OPT_client__name)) || - (A = Args.getLastArg(options::OPT_force__flat__namespace)) || - (A = Args.getLastArg(options::OPT_keep__private__externs)) || - (A = Args.getLastArg(options::OPT_private__bundle))) - D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) - << "-dynamiclib"; - - Args.AddAllArgsTranslated(CmdArgs, options::OPT_compatibility__version, - "-dylib_compatibility_version"); - Args.AddAllArgsTranslated(CmdArgs, options::OPT_current__version, - "-dylib_current_version"); - - AddMachOArch(Args, CmdArgs); - - Args.AddAllArgsTranslated(CmdArgs, options::OPT_install__name, - "-dylib_install_name"); - } - - Args.AddLastArg(CmdArgs, options::OPT_all__load); - Args.AddAllArgs(CmdArgs, options::OPT_allowable__client); - Args.AddLastArg(CmdArgs, options::OPT_bind__at__load); - if (MachOTC.isTargetIOSBased()) - Args.AddLastArg(CmdArgs, options::OPT_arch__errors__fatal); - Args.AddLastArg(CmdArgs, options::OPT_dead__strip); - Args.AddLastArg(CmdArgs, options::OPT_no__dead__strip__inits__and__terms); - Args.AddAllArgs(CmdArgs, options::OPT_dylib__file); - Args.AddLastArg(CmdArgs, options::OPT_dynamic); - Args.AddAllArgs(CmdArgs, options::OPT_exported__symbols__list); - Args.AddLastArg(CmdArgs, options::OPT_flat__namespace); - Args.AddAllArgs(CmdArgs, options::OPT_force__load); - Args.AddAllArgs(CmdArgs, options::OPT_headerpad__max__install__names); - Args.AddAllArgs(CmdArgs, options::OPT_image__base); - Args.AddAllArgs(CmdArgs, options::OPT_init); - - // Add the deployment target. - MachOTC.addMinVersionArgs(Args, CmdArgs); - - Args.AddLastArg(CmdArgs, options::OPT_nomultidefs); - Args.AddLastArg(CmdArgs, options::OPT_multi__module); - Args.AddLastArg(CmdArgs, options::OPT_single__module); - Args.AddAllArgs(CmdArgs, options::OPT_multiply__defined); - Args.AddAllArgs(CmdArgs, options::OPT_multiply__defined__unused); - - if (const Arg *A = - Args.getLastArg(options::OPT_fpie, options::OPT_fPIE, - options::OPT_fno_pie, options::OPT_fno_PIE)) { - if (A->getOption().matches(options::OPT_fpie) || - A->getOption().matches(options::OPT_fPIE)) - CmdArgs.push_back("-pie"); - else - CmdArgs.push_back("-no_pie"); - } - - // for embed-bitcode, use -bitcode_bundle in linker command - if (C.getDriver().embedBitcodeEnabled()) { - // Check if the toolchain supports bitcode build flow. - if (MachOTC.SupportsEmbeddedBitcode()) - CmdArgs.push_back("-bitcode_bundle"); - else - D.Diag(diag::err_drv_bitcode_unsupported_on_toolchain); - } - - Args.AddLastArg(CmdArgs, options::OPT_prebind); - Args.AddLastArg(CmdArgs, options::OPT_noprebind); - Args.AddLastArg(CmdArgs, options::OPT_nofixprebinding); - Args.AddLastArg(CmdArgs, options::OPT_prebind__all__twolevel__modules); - Args.AddLastArg(CmdArgs, options::OPT_read__only__relocs); - Args.AddAllArgs(CmdArgs, options::OPT_sectcreate); - Args.AddAllArgs(CmdArgs, options::OPT_sectorder); - Args.AddAllArgs(CmdArgs, options::OPT_seg1addr); - Args.AddAllArgs(CmdArgs, options::OPT_segprot); - Args.AddAllArgs(CmdArgs, options::OPT_segaddr); - Args.AddAllArgs(CmdArgs, options::OPT_segs__read__only__addr); - Args.AddAllArgs(CmdArgs, options::OPT_segs__read__write__addr); - Args.AddAllArgs(CmdArgs, options::OPT_seg__addr__table); - Args.AddAllArgs(CmdArgs, options::OPT_seg__addr__table__filename); - Args.AddAllArgs(CmdArgs, options::OPT_sub__library); - Args.AddAllArgs(CmdArgs, options::OPT_sub__umbrella); - - // Give --sysroot= preference, over the Apple specific behavior to also use - // --isysroot as the syslibroot. - StringRef sysroot = C.getSysRoot(); - if (sysroot != "") { - CmdArgs.push_back("-syslibroot"); - CmdArgs.push_back(C.getArgs().MakeArgString(sysroot)); - } else if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { - CmdArgs.push_back("-syslibroot"); - CmdArgs.push_back(A->getValue()); - } - - Args.AddLastArg(CmdArgs, options::OPT_twolevel__namespace); - Args.AddLastArg(CmdArgs, options::OPT_twolevel__namespace__hints); - Args.AddAllArgs(CmdArgs, options::OPT_umbrella); - Args.AddAllArgs(CmdArgs, options::OPT_undefined); - Args.AddAllArgs(CmdArgs, options::OPT_unexported__symbols__list); - Args.AddAllArgs(CmdArgs, options::OPT_weak__reference__mismatches); - Args.AddLastArg(CmdArgs, options::OPT_X_Flag); - Args.AddAllArgs(CmdArgs, options::OPT_y); - Args.AddLastArg(CmdArgs, options::OPT_w); - Args.AddAllArgs(CmdArgs, options::OPT_pagezero__size); - Args.AddAllArgs(CmdArgs, options::OPT_segs__read__); - Args.AddLastArg(CmdArgs, options::OPT_seglinkedit); - Args.AddLastArg(CmdArgs, options::OPT_noseglinkedit); - Args.AddAllArgs(CmdArgs, options::OPT_sectalign); - Args.AddAllArgs(CmdArgs, options::OPT_sectobjectsymbols); - Args.AddAllArgs(CmdArgs, options::OPT_segcreate); - Args.AddLastArg(CmdArgs, options::OPT_whyload); - Args.AddLastArg(CmdArgs, options::OPT_whatsloaded); - Args.AddAllArgs(CmdArgs, options::OPT_dylinker__install__name); - Args.AddLastArg(CmdArgs, options::OPT_dylinker); - Args.AddLastArg(CmdArgs, options::OPT_Mach); -} - -void darwin::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - assert(Output.getType() == types::TY_Image && "Invalid linker output type."); - - // If the number of arguments surpasses the system limits, we will encode the - // input files in a separate file, shortening the command line. To this end, - // build a list of input file names that can be passed via a file with the - // -filelist linker option. - llvm::opt::ArgStringList InputFileList; - - // The logic here is derived from gcc's behavior; most of which - // comes from specs (starting with link_command). Consult gcc for - // more information. - ArgStringList CmdArgs; - - /// Hack(tm) to ignore linking errors when we are doing ARC migration. - if (Args.hasArg(options::OPT_ccc_arcmt_check, - options::OPT_ccc_arcmt_migrate)) { - for (const auto &Arg : Args) - Arg->claim(); - const char *Exec = - Args.MakeArgString(getToolChain().GetProgramPath("touch")); - CmdArgs.push_back(Output.getFilename()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, None)); - return; - } - - // I'm not sure why this particular decomposition exists in gcc, but - // we follow suite for ease of comparison. - AddLinkArgs(C, Args, CmdArgs, Inputs); - - // For LTO, pass the name of the optimization record file. - if (Args.hasFlag(options::OPT_fsave_optimization_record, - options::OPT_fno_save_optimization_record, false)) { - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back("-lto-pass-remarks-output"); - CmdArgs.push_back("-mllvm"); - - SmallString<128> F; - F = Output.getFilename(); - F += ".opt.yaml"; - CmdArgs.push_back(Args.MakeArgString(F)); - - if (getLastProfileUseArg(Args)) { - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back("-lto-pass-remarks-with-hotness"); - } - } - - // It seems that the 'e' option is completely ignored for dynamic executables - // (the default), and with static executables, the last one wins, as expected. - Args.AddAllArgs(CmdArgs, {options::OPT_d_Flag, options::OPT_s, options::OPT_t, - options::OPT_Z_Flag, options::OPT_u_Group, - options::OPT_e, options::OPT_r}); - - // Forward -ObjC when either -ObjC or -ObjC++ is used, to force loading - // members of static archive libraries which implement Objective-C classes or - // categories. - if (Args.hasArg(options::OPT_ObjC) || Args.hasArg(options::OPT_ObjCXX)) - CmdArgs.push_back("-ObjC"); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) - getMachOToolChain().addStartObjectFileArgs(Args, CmdArgs); - - // SafeStack requires its own runtime libraries - // These libraries should be linked first, to make sure the - // __safestack_init constructor executes before everything else - if (getToolChain().getSanitizerArgs().needsSafeStackRt()) { - getMachOToolChain().AddLinkRuntimeLib(Args, CmdArgs, - "libclang_rt.safestack_osx.a", - /*AlwaysLink=*/true); - } - - Args.AddAllArgs(CmdArgs, options::OPT_L); - - AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); - // Build the input file for -filelist (list of linker input files) in case we - // need it later - for (const auto &II : Inputs) { - if (!II.isFilename()) { - // This is a linker input argument. - // We cannot mix input arguments and file names in a -filelist input, thus - // we prematurely stop our list (remaining files shall be passed as - // arguments). - if (InputFileList.size() > 0) - break; - - continue; - } - - InputFileList.push_back(II.getFilename()); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) - addOpenMPRuntime(CmdArgs, getToolChain(), Args); - - if (isObjCRuntimeLinked(Args) && - !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - // We use arclite library for both ARC and subscripting support. - getMachOToolChain().AddLinkARCArgs(Args, CmdArgs); - - CmdArgs.push_back("-framework"); - CmdArgs.push_back("Foundation"); - // Link libobj. - CmdArgs.push_back("-lobjc"); - } - - if (LinkingOutput) { - CmdArgs.push_back("-arch_multiple"); - CmdArgs.push_back("-final_output"); - CmdArgs.push_back(LinkingOutput); - } - - if (Args.hasArg(options::OPT_fnested_functions)) - CmdArgs.push_back("-allow_stack_execute"); - - getMachOToolChain().addProfileRTLibs(Args, CmdArgs); - - if (unsigned Parallelism = - getLTOParallelism(Args, getToolChain().getDriver())) { - CmdArgs.push_back("-mllvm"); - CmdArgs.push_back( - Args.MakeArgString(Twine("-threads=") + llvm::to_string(Parallelism))); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - if (getToolChain().getDriver().CCCIsCXX()) - getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); - - // link_ssp spec is empty. - - // Let the tool chain choose which runtime library to link. - getMachOToolChain().AddLinkRuntimeLibArgs(Args, CmdArgs); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - // endfile_spec is empty. - } - - Args.AddAllArgs(CmdArgs, options::OPT_T_Group); - Args.AddAllArgs(CmdArgs, options::OPT_F); - - // -iframework should be forwarded as -F. - for (const Arg *A : Args.filtered(options::OPT_iframework)) - CmdArgs.push_back(Args.MakeArgString(std::string("-F") + A->getValue())); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - if (Arg *A = Args.getLastArg(options::OPT_fveclib)) { - if (A->getValue() == StringRef("Accelerate")) { - CmdArgs.push_back("-framework"); - CmdArgs.push_back("Accelerate"); - } - } - } - - const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); - std::unique_ptr<Command> Cmd = - llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs); - Cmd->setInputFileList(std::move(InputFileList)); - C.addCommand(std::move(Cmd)); -} - -void darwin::Lipo::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - ArgStringList CmdArgs; - - CmdArgs.push_back("-create"); - assert(Output.isFilename() && "Unexpected lipo output."); - - CmdArgs.push_back("-output"); - CmdArgs.push_back(Output.getFilename()); - - for (const auto &II : Inputs) { - assert(II.isFilename() && "Unexpected lipo input."); - CmdArgs.push_back(II.getFilename()); - } - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("lipo")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void darwin::Dsymutil::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - ArgStringList CmdArgs; - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - assert(Inputs.size() == 1 && "Unable to handle multiple inputs."); - const InputInfo &Input = Inputs[0]; - assert(Input.isFilename() && "Unexpected dsymutil input."); - CmdArgs.push_back(Input.getFilename()); - - const char *Exec = - Args.MakeArgString(getToolChain().GetProgramPath("dsymutil")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void darwin::VerifyDebug::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - ArgStringList CmdArgs; - CmdArgs.push_back("--verify"); - CmdArgs.push_back("--debug-info"); - CmdArgs.push_back("--eh-frame"); - CmdArgs.push_back("--quiet"); - - assert(Inputs.size() == 1 && "Unable to handle multiple inputs."); - const InputInfo &Input = Inputs[0]; - assert(Input.isFilename() && "Unexpected verify input"); - - // Grabbing the output of the earlier dsymutil run. - CmdArgs.push_back(Input.getFilename()); - - const char *Exec = - Args.MakeArgString(getToolChain().GetProgramPath("dwarfdump")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void solaris::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - ArgStringList CmdArgs; - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - for (const auto &II : Inputs) - CmdArgs.push_back(II.getFilename()); - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void solaris::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - ArgStringList CmdArgs; - - // Demangle C++ names in errors - CmdArgs.push_back("-C"); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) { - CmdArgs.push_back("-e"); - CmdArgs.push_back("_start"); - } - - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-Bstatic"); - CmdArgs.push_back("-dn"); - } else { - CmdArgs.push_back("-Bdynamic"); - if (Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back("-shared"); - } else { - CmdArgs.push_back("--dynamic-linker"); - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("ld.so.1"))); - } - } - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (!Args.hasArg(options::OPT_shared)) - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crt1.o"))); - - CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o"))); - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("values-Xa.o"))); - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); - } - - getToolChain().AddFilePathLibArgs(Args, CmdArgs); - - Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group, - options::OPT_e, options::OPT_r}); - - AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - if (getToolChain().getDriver().CCCIsCXX()) - getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); - CmdArgs.push_back("-lgcc_s"); - CmdArgs.push_back("-lc"); - if (!Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back("-lgcc"); - CmdArgs.push_back("-lm"); - } - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); - } - CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o"))); - - getToolChain().addProfileRTLibs(Args, CmdArgs); - - const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void openbsd::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - ArgStringList CmdArgs; - - switch (getToolChain().getArch()) { - case llvm::Triple::x86: - // When building 32-bit code on OpenBSD/amd64, we have to explicitly - // instruct as in the base system to assemble 32-bit code. - CmdArgs.push_back("--32"); - break; - - case llvm::Triple::ppc: - CmdArgs.push_back("-mppc"); - CmdArgs.push_back("-many"); - break; - - case llvm::Triple::sparc: - case llvm::Triple::sparcel: { - CmdArgs.push_back("-32"); - std::string CPU = getCPUName(Args, getToolChain().getTriple()); - CmdArgs.push_back(getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); - AddAssemblerKPIC(getToolChain(), Args, CmdArgs); - break; - } - - case llvm::Triple::sparcv9: { - CmdArgs.push_back("-64"); - std::string CPU = getCPUName(Args, getToolChain().getTriple()); - CmdArgs.push_back(getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); - AddAssemblerKPIC(getToolChain(), Args, CmdArgs); - break; - } - - case llvm::Triple::mips64: - case llvm::Triple::mips64el: { - StringRef CPUName; - StringRef ABIName; - mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName); - - CmdArgs.push_back("-mabi"); - CmdArgs.push_back(getGnuCompatibleMipsABIName(ABIName).data()); - - if (getToolChain().getArch() == llvm::Triple::mips64) - CmdArgs.push_back("-EB"); - else - CmdArgs.push_back("-EL"); - - AddAssemblerKPIC(getToolChain(), Args, CmdArgs); - break; - } - - default: - break; - } - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - for (const auto &II : Inputs) - CmdArgs.push_back(II.getFilename()); - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void openbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const Driver &D = getToolChain().getDriver(); - ArgStringList CmdArgs; - - // Silence warning for "clang -g foo.o -o foo" - Args.ClaimAllArgs(options::OPT_g_Group); - // and "clang -emit-llvm foo.o -o foo" - Args.ClaimAllArgs(options::OPT_emit_llvm); - // and for "clang -w foo.o -o foo". Other warning options are already - // handled somewhere else. - Args.ClaimAllArgs(options::OPT_w); - - if (getToolChain().getArch() == llvm::Triple::mips64) - CmdArgs.push_back("-EB"); - else if (getToolChain().getArch() == llvm::Triple::mips64el) - CmdArgs.push_back("-EL"); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) { - CmdArgs.push_back("-e"); - CmdArgs.push_back("__start"); - } - - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-Bstatic"); - } else { - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - CmdArgs.push_back("--eh-frame-hdr"); - CmdArgs.push_back("-Bdynamic"); - if (Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back("-shared"); - } else { - CmdArgs.push_back("-dynamic-linker"); - CmdArgs.push_back("/usr/libexec/ld.so"); - } - } - - if (Args.hasArg(options::OPT_nopie)) - CmdArgs.push_back("-nopie"); - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (!Args.hasArg(options::OPT_shared)) { - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("gcrt0.o"))); - else if (Args.hasArg(options::OPT_static) && - !Args.hasArg(options::OPT_nopie)) - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("rcrt0.o"))); - else - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crt0.o"))); - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); - } else { - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.o"))); - } - } - - std::string Triple = getToolChain().getTripleString(); - if (Triple.substr(0, 6) == "x86_64") - Triple.replace(0, 6, "amd64"); - CmdArgs.push_back( - Args.MakeArgString("-L/usr/lib/gcc-lib/" + Triple + "/4.2.1")); - - Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group, - options::OPT_e, options::OPT_s, options::OPT_t, - options::OPT_Z_Flag, options::OPT_r}); - - AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - if (D.CCCIsCXX()) { - getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lm_p"); - else - CmdArgs.push_back("-lm"); - } - - // FIXME: For some reason GCC passes -lgcc before adding - // the default system libraries. Just mimic this for now. - CmdArgs.push_back("-lgcc"); - - if (Args.hasArg(options::OPT_pthread)) { - if (!Args.hasArg(options::OPT_shared) && Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lpthread_p"); - else - CmdArgs.push_back("-lpthread"); - } - - if (!Args.hasArg(options::OPT_shared)) { - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lc_p"); - else - CmdArgs.push_back("-lc"); - } - - CmdArgs.push_back("-lgcc"); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (!Args.hasArg(options::OPT_shared)) - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); - else - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtendS.o"))); - } - - const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void bitrig::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - ArgStringList CmdArgs; - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - for (const auto &II : Inputs) - CmdArgs.push_back(II.getFilename()); - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void bitrig::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const Driver &D = getToolChain().getDriver(); - ArgStringList CmdArgs; - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) { - CmdArgs.push_back("-e"); - CmdArgs.push_back("__start"); - } - - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-Bstatic"); - } else { - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - CmdArgs.push_back("--eh-frame-hdr"); - CmdArgs.push_back("-Bdynamic"); - if (Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back("-shared"); - } else { - CmdArgs.push_back("-dynamic-linker"); - CmdArgs.push_back("/usr/libexec/ld.so"); - } - } - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (!Args.hasArg(options::OPT_shared)) { - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("gcrt0.o"))); - else - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crt0.o"))); - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); - } else { - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.o"))); - } - } - - Args.AddAllArgs(CmdArgs, - {options::OPT_L, options::OPT_T_Group, options::OPT_e}); - - AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - if (D.CCCIsCXX()) { - getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lm_p"); - else - CmdArgs.push_back("-lm"); - } - - if (Args.hasArg(options::OPT_pthread)) { - if (!Args.hasArg(options::OPT_shared) && Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lpthread_p"); - else - CmdArgs.push_back("-lpthread"); - } - - if (!Args.hasArg(options::OPT_shared)) { - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lc_p"); - else - CmdArgs.push_back("-lc"); - } - - StringRef MyArch; - switch (getToolChain().getArch()) { - case llvm::Triple::arm: - MyArch = "arm"; - break; - case llvm::Triple::x86: - MyArch = "i386"; - break; - case llvm::Triple::x86_64: - MyArch = "amd64"; - break; - default: - llvm_unreachable("Unsupported architecture"); - } - CmdArgs.push_back(Args.MakeArgString("-lclang_rt." + MyArch)); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (!Args.hasArg(options::OPT_shared)) - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); - else - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtendS.o"))); - } - - const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void freebsd::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - ArgStringList CmdArgs; - - // When building 32-bit code on FreeBSD/amd64, we have to explicitly - // instruct as in the base system to assemble 32-bit code. - switch (getToolChain().getArch()) { - default: - break; - case llvm::Triple::x86: - CmdArgs.push_back("--32"); - break; - case llvm::Triple::ppc: - CmdArgs.push_back("-a32"); - break; - case llvm::Triple::mips: - case llvm::Triple::mipsel: - case llvm::Triple::mips64: - case llvm::Triple::mips64el: { - StringRef CPUName; - StringRef ABIName; - mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName); - - CmdArgs.push_back("-march"); - CmdArgs.push_back(CPUName.data()); - - CmdArgs.push_back("-mabi"); - CmdArgs.push_back(getGnuCompatibleMipsABIName(ABIName).data()); - - if (getToolChain().getArch() == llvm::Triple::mips || - getToolChain().getArch() == llvm::Triple::mips64) - CmdArgs.push_back("-EB"); - else - CmdArgs.push_back("-EL"); - - if (Arg *A = Args.getLastArg(options::OPT_G)) { - StringRef v = A->getValue(); - CmdArgs.push_back(Args.MakeArgString("-G" + v)); - A->claim(); - } - - AddAssemblerKPIC(getToolChain(), Args, CmdArgs); - break; - } - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: { - arm::FloatABI ABI = arm::getARMFloatABI(getToolChain(), Args); - - if (ABI == arm::FloatABI::Hard) - CmdArgs.push_back("-mfpu=vfp"); - else - CmdArgs.push_back("-mfpu=softvfp"); - - switch (getToolChain().getTriple().getEnvironment()) { - case llvm::Triple::GNUEABIHF: - case llvm::Triple::GNUEABI: - case llvm::Triple::EABI: - CmdArgs.push_back("-meabi=5"); - break; - - default: - CmdArgs.push_back("-matpcs"); - } - break; - } - case llvm::Triple::sparc: - case llvm::Triple::sparcel: - case llvm::Triple::sparcv9: { - std::string CPU = getCPUName(Args, getToolChain().getTriple()); - CmdArgs.push_back(getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); - AddAssemblerKPIC(getToolChain(), Args, CmdArgs); - break; - } - } - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - for (const auto &II : Inputs) - CmdArgs.push_back(II.getFilename()); - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void freebsd::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const toolchains::FreeBSD &ToolChain = - static_cast<const toolchains::FreeBSD &>(getToolChain()); - const Driver &D = ToolChain.getDriver(); - const llvm::Triple::ArchType Arch = ToolChain.getArch(); - const bool IsPIE = - !Args.hasArg(options::OPT_shared) && - (Args.hasArg(options::OPT_pie) || ToolChain.isPIEDefault()); - ArgStringList CmdArgs; - - // Silence warning for "clang -g foo.o -o foo" - Args.ClaimAllArgs(options::OPT_g_Group); - // and "clang -emit-llvm foo.o -o foo" - Args.ClaimAllArgs(options::OPT_emit_llvm); - // and for "clang -w foo.o -o foo". Other warning options are already - // handled somewhere else. - Args.ClaimAllArgs(options::OPT_w); - - if (!D.SysRoot.empty()) - CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); - - if (IsPIE) - CmdArgs.push_back("-pie"); - - CmdArgs.push_back("--eh-frame-hdr"); - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-Bstatic"); - } else { - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - if (Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back("-Bshareable"); - } else { - CmdArgs.push_back("-dynamic-linker"); - CmdArgs.push_back("/libexec/ld-elf.so.1"); - } - if (ToolChain.getTriple().getOSMajorVersion() >= 9) { - if (Arch == llvm::Triple::arm || Arch == llvm::Triple::sparc || - Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64) { - CmdArgs.push_back("--hash-style=both"); - } - } - CmdArgs.push_back("--enable-new-dtags"); - } - - // When building 32-bit code on FreeBSD/amd64, we have to explicitly - // instruct ld in the base system to link 32-bit code. - if (Arch == llvm::Triple::x86) { - CmdArgs.push_back("-m"); - CmdArgs.push_back("elf_i386_fbsd"); - } - - if (Arch == llvm::Triple::ppc) { - CmdArgs.push_back("-m"); - CmdArgs.push_back("elf32ppc_fbsd"); - } - - if (Arg *A = Args.getLastArg(options::OPT_G)) { - if (ToolChain.getArch() == llvm::Triple::mips || - ToolChain.getArch() == llvm::Triple::mipsel || - ToolChain.getArch() == llvm::Triple::mips64 || - ToolChain.getArch() == llvm::Triple::mips64el) { - StringRef v = A->getValue(); - CmdArgs.push_back(Args.MakeArgString("-G" + v)); - A->claim(); - } - } - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - const char *crt1 = nullptr; - if (!Args.hasArg(options::OPT_shared)) { - if (Args.hasArg(options::OPT_pg)) - crt1 = "gcrt1.o"; - else if (IsPIE) - crt1 = "Scrt1.o"; - else - crt1 = "crt1.o"; - } - if (crt1) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1))); - - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); - - const char *crtbegin = nullptr; - if (Args.hasArg(options::OPT_static)) - crtbegin = "crtbeginT.o"; - else if (Args.hasArg(options::OPT_shared) || IsPIE) - crtbegin = "crtbeginS.o"; - else - crtbegin = "crtbegin.o"; - - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin))); - } - - Args.AddAllArgs(CmdArgs, options::OPT_L); - ToolChain.AddFilePathLibArgs(Args, CmdArgs); - Args.AddAllArgs(CmdArgs, options::OPT_T_Group); - Args.AddAllArgs(CmdArgs, options::OPT_e); - Args.AddAllArgs(CmdArgs, options::OPT_s); - Args.AddAllArgs(CmdArgs, options::OPT_t); - Args.AddAllArgs(CmdArgs, options::OPT_Z_Flag); - Args.AddAllArgs(CmdArgs, options::OPT_r); - - if (D.isUsingLTO()) - AddGoldPlugin(ToolChain, Args, CmdArgs, D.getLTOMode() == LTOK_Thin, D); - - bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs); - AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - addOpenMPRuntime(CmdArgs, ToolChain, Args); - if (D.CCCIsCXX()) { - ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lm_p"); - else - CmdArgs.push_back("-lm"); - } - if (NeedsSanitizerDeps) - linkSanitizerRuntimeDeps(ToolChain, CmdArgs); - // FIXME: For some reason GCC passes -lgcc and -lgcc_s before adding - // the default system libraries. Just mimic this for now. - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lgcc_p"); - else - CmdArgs.push_back("-lgcc"); - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-lgcc_eh"); - } else if (Args.hasArg(options::OPT_pg)) { - CmdArgs.push_back("-lgcc_eh_p"); - } else { - CmdArgs.push_back("--as-needed"); - CmdArgs.push_back("-lgcc_s"); - CmdArgs.push_back("--no-as-needed"); - } - - if (Args.hasArg(options::OPT_pthread)) { - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lpthread_p"); - else - CmdArgs.push_back("-lpthread"); - } - - if (Args.hasArg(options::OPT_pg)) { - if (Args.hasArg(options::OPT_shared)) - CmdArgs.push_back("-lc"); - else - CmdArgs.push_back("-lc_p"); - CmdArgs.push_back("-lgcc_p"); - } else { - CmdArgs.push_back("-lc"); - CmdArgs.push_back("-lgcc"); - } - - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-lgcc_eh"); - } else if (Args.hasArg(options::OPT_pg)) { - CmdArgs.push_back("-lgcc_eh_p"); - } else { - CmdArgs.push_back("--as-needed"); - CmdArgs.push_back("-lgcc_s"); - CmdArgs.push_back("--no-as-needed"); - } - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (Args.hasArg(options::OPT_shared) || IsPIE) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtendS.o"))); - else - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o"))); - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); - } - - ToolChain.addProfileRTLibs(Args, CmdArgs); - - const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void netbsd::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - ArgStringList CmdArgs; - - // GNU as needs different flags for creating the correct output format - // on architectures with different ABIs or optional feature sets. - switch (getToolChain().getArch()) { - case llvm::Triple::x86: - CmdArgs.push_back("--32"); - break; - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: { - StringRef MArch, MCPU; - getARMArchCPUFromArgs(Args, MArch, MCPU, /*FromAs*/ true); - std::string Arch = - arm::getARMTargetCPU(MCPU, MArch, getToolChain().getTriple()); - CmdArgs.push_back(Args.MakeArgString("-mcpu=" + Arch)); - break; - } - - case llvm::Triple::mips: - case llvm::Triple::mipsel: - case llvm::Triple::mips64: - case llvm::Triple::mips64el: { - StringRef CPUName; - StringRef ABIName; - mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName); - - CmdArgs.push_back("-march"); - CmdArgs.push_back(CPUName.data()); - - CmdArgs.push_back("-mabi"); - CmdArgs.push_back(getGnuCompatibleMipsABIName(ABIName).data()); - - if (getToolChain().getArch() == llvm::Triple::mips || - getToolChain().getArch() == llvm::Triple::mips64) - CmdArgs.push_back("-EB"); - else - CmdArgs.push_back("-EL"); - - AddAssemblerKPIC(getToolChain(), Args, CmdArgs); - break; - } - - case llvm::Triple::sparc: - case llvm::Triple::sparcel: { - CmdArgs.push_back("-32"); - std::string CPU = getCPUName(Args, getToolChain().getTriple()); - CmdArgs.push_back(getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); - AddAssemblerKPIC(getToolChain(), Args, CmdArgs); - break; - } - - case llvm::Triple::sparcv9: { - CmdArgs.push_back("-64"); - std::string CPU = getCPUName(Args, getToolChain().getTriple()); - CmdArgs.push_back(getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); - AddAssemblerKPIC(getToolChain(), Args, CmdArgs); - break; - } - - default: - break; - } - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - for (const auto &II : Inputs) - CmdArgs.push_back(II.getFilename()); - - const char *Exec = Args.MakeArgString((getToolChain().GetProgramPath("as"))); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void netbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const Driver &D = getToolChain().getDriver(); - ArgStringList CmdArgs; - - if (!D.SysRoot.empty()) - CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); - - CmdArgs.push_back("--eh-frame-hdr"); - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-Bstatic"); - } else { - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - if (Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back("-Bshareable"); - } else { - Args.AddAllArgs(CmdArgs, options::OPT_pie); - CmdArgs.push_back("-dynamic-linker"); - CmdArgs.push_back("/libexec/ld.elf_so"); - } - } - - // Many NetBSD architectures support more than one ABI. - // Determine the correct emulation for ld. - switch (getToolChain().getArch()) { - case llvm::Triple::x86: - CmdArgs.push_back("-m"); - CmdArgs.push_back("elf_i386"); - break; - case llvm::Triple::arm: - case llvm::Triple::thumb: - CmdArgs.push_back("-m"); - switch (getToolChain().getTriple().getEnvironment()) { - case llvm::Triple::EABI: - case llvm::Triple::GNUEABI: - CmdArgs.push_back("armelf_nbsd_eabi"); - break; - case llvm::Triple::EABIHF: - case llvm::Triple::GNUEABIHF: - CmdArgs.push_back("armelf_nbsd_eabihf"); - break; - default: - CmdArgs.push_back("armelf_nbsd"); - break; - } - break; - case llvm::Triple::armeb: - case llvm::Triple::thumbeb: - arm::appendEBLinkFlags(Args, CmdArgs, getToolChain().getEffectiveTriple()); - CmdArgs.push_back("-m"); - switch (getToolChain().getTriple().getEnvironment()) { - case llvm::Triple::EABI: - case llvm::Triple::GNUEABI: - CmdArgs.push_back("armelfb_nbsd_eabi"); - break; - case llvm::Triple::EABIHF: - case llvm::Triple::GNUEABIHF: - CmdArgs.push_back("armelfb_nbsd_eabihf"); - break; - default: - CmdArgs.push_back("armelfb_nbsd"); - break; - } - break; - case llvm::Triple::mips64: - case llvm::Triple::mips64el: - if (mips::hasMipsAbiArg(Args, "32")) { - CmdArgs.push_back("-m"); - if (getToolChain().getArch() == llvm::Triple::mips64) - CmdArgs.push_back("elf32btsmip"); - else - CmdArgs.push_back("elf32ltsmip"); - } else if (mips::hasMipsAbiArg(Args, "64")) { - CmdArgs.push_back("-m"); - if (getToolChain().getArch() == llvm::Triple::mips64) - CmdArgs.push_back("elf64btsmip"); - else - CmdArgs.push_back("elf64ltsmip"); - } - break; - case llvm::Triple::ppc: - CmdArgs.push_back("-m"); - CmdArgs.push_back("elf32ppc_nbsd"); - break; - - case llvm::Triple::ppc64: - case llvm::Triple::ppc64le: - CmdArgs.push_back("-m"); - CmdArgs.push_back("elf64ppc"); - break; - - case llvm::Triple::sparc: - CmdArgs.push_back("-m"); - CmdArgs.push_back("elf32_sparc"); - break; - - case llvm::Triple::sparcv9: - CmdArgs.push_back("-m"); - CmdArgs.push_back("elf64_sparc"); - break; - - default: - break; - } - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (!Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crt0.o"))); - } - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crti.o"))); - if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) { - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.o"))); - } else { - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); - } - } - - Args.AddAllArgs(CmdArgs, options::OPT_L); - Args.AddAllArgs(CmdArgs, options::OPT_T_Group); - Args.AddAllArgs(CmdArgs, options::OPT_e); - Args.AddAllArgs(CmdArgs, options::OPT_s); - Args.AddAllArgs(CmdArgs, options::OPT_t); - Args.AddAllArgs(CmdArgs, options::OPT_Z_Flag); - Args.AddAllArgs(CmdArgs, options::OPT_r); - - AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); - - unsigned Major, Minor, Micro; - getToolChain().getTriple().getOSVersion(Major, Minor, Micro); - bool useLibgcc = true; - if (Major >= 7 || Major == 0) { - switch (getToolChain().getArch()) { - case llvm::Triple::aarch64: - case llvm::Triple::aarch64_be: - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: - case llvm::Triple::ppc: - case llvm::Triple::ppc64: - case llvm::Triple::ppc64le: - case llvm::Triple::sparc: - case llvm::Triple::sparcv9: - case llvm::Triple::x86: - case llvm::Triple::x86_64: - useLibgcc = false; - break; - default: - break; - } - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - addOpenMPRuntime(CmdArgs, getToolChain(), Args); - if (D.CCCIsCXX()) { - getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); - CmdArgs.push_back("-lm"); - } - if (Args.hasArg(options::OPT_pthread)) - CmdArgs.push_back("-lpthread"); - CmdArgs.push_back("-lc"); - - if (useLibgcc) { - if (Args.hasArg(options::OPT_static)) { - // libgcc_eh depends on libc, so resolve as much as possible, - // pull in any new requirements from libc and then get the rest - // of libgcc. - CmdArgs.push_back("-lgcc_eh"); - CmdArgs.push_back("-lc"); - CmdArgs.push_back("-lgcc"); - } else { - CmdArgs.push_back("-lgcc"); - CmdArgs.push_back("--as-needed"); - CmdArgs.push_back("-lgcc_s"); - CmdArgs.push_back("--no-as-needed"); - } - } - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtendS.o"))); - else - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); - CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o"))); - } - - getToolChain().addProfileRTLibs(Args, CmdArgs); - - const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void gnutools::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - - ArgStringList CmdArgs; - - llvm::Reloc::Model RelocationModel; - unsigned PICLevel; - bool IsPIE; - std::tie(RelocationModel, PICLevel, IsPIE) = - ParsePICArgs(getToolChain(), Args); - - switch (getToolChain().getArch()) { - default: - break; - // Add --32/--64 to make sure we get the format we want. - // This is incomplete - case llvm::Triple::x86: - CmdArgs.push_back("--32"); - break; - case llvm::Triple::x86_64: - if (getToolChain().getTriple().getEnvironment() == llvm::Triple::GNUX32) - CmdArgs.push_back("--x32"); - else - CmdArgs.push_back("--64"); - break; - case llvm::Triple::ppc: - CmdArgs.push_back("-a32"); - CmdArgs.push_back("-mppc"); - CmdArgs.push_back("-many"); - break; - case llvm::Triple::ppc64: - CmdArgs.push_back("-a64"); - CmdArgs.push_back("-mppc64"); - CmdArgs.push_back("-many"); - break; - case llvm::Triple::ppc64le: - CmdArgs.push_back("-a64"); - CmdArgs.push_back("-mppc64"); - CmdArgs.push_back("-many"); - CmdArgs.push_back("-mlittle-endian"); - break; - case llvm::Triple::sparc: - case llvm::Triple::sparcel: { - CmdArgs.push_back("-32"); - std::string CPU = getCPUName(Args, getToolChain().getTriple()); - CmdArgs.push_back(getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); - AddAssemblerKPIC(getToolChain(), Args, CmdArgs); - break; - } - case llvm::Triple::sparcv9: { - CmdArgs.push_back("-64"); - std::string CPU = getCPUName(Args, getToolChain().getTriple()); - CmdArgs.push_back(getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); - AddAssemblerKPIC(getToolChain(), Args, CmdArgs); - break; - } - case llvm::Triple::arm: - case llvm::Triple::armeb: - case llvm::Triple::thumb: - case llvm::Triple::thumbeb: { - const llvm::Triple &Triple2 = getToolChain().getTriple(); - switch (Triple2.getSubArch()) { - case llvm::Triple::ARMSubArch_v7: - CmdArgs.push_back("-mfpu=neon"); - break; - case llvm::Triple::ARMSubArch_v8: - CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8"); - break; - default: - break; - } - - switch (arm::getARMFloatABI(getToolChain(), Args)) { - case arm::FloatABI::Invalid: llvm_unreachable("must have an ABI!"); - case arm::FloatABI::Soft: - CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=soft")); - break; - case arm::FloatABI::SoftFP: - CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=softfp")); - break; - case arm::FloatABI::Hard: - CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=hard")); - break; - } - - Args.AddLastArg(CmdArgs, options::OPT_march_EQ); - - // FIXME: remove krait check when GNU tools support krait cpu - // for now replace it with -mcpu=cortex-a15 to avoid a lower - // march from being picked in the absence of a cpu flag. - Arg *A; - if ((A = Args.getLastArg(options::OPT_mcpu_EQ)) && - StringRef(A->getValue()).equals_lower("krait")) - CmdArgs.push_back("-mcpu=cortex-a15"); - else - Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ); - Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ); - break; - } - case llvm::Triple::mips: - case llvm::Triple::mipsel: - case llvm::Triple::mips64: - case llvm::Triple::mips64el: { - StringRef CPUName; - StringRef ABIName; - mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName); - ABIName = getGnuCompatibleMipsABIName(ABIName); - - CmdArgs.push_back("-march"); - CmdArgs.push_back(CPUName.data()); - - CmdArgs.push_back("-mabi"); - CmdArgs.push_back(ABIName.data()); - - // -mno-shared should be emitted unless -fpic, -fpie, -fPIC, -fPIE, - // or -mshared (not implemented) is in effect. - if (RelocationModel == llvm::Reloc::Static) - CmdArgs.push_back("-mno-shared"); - - // LLVM doesn't support -mplt yet and acts as if it is always given. - // However, -mplt has no effect with the N64 ABI. - CmdArgs.push_back(ABIName == "64" ? "-KPIC" : "-call_nonpic"); - - if (getToolChain().getArch() == llvm::Triple::mips || - getToolChain().getArch() == llvm::Triple::mips64) - CmdArgs.push_back("-EB"); - else - CmdArgs.push_back("-EL"); - - if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) { - if (StringRef(A->getValue()) == "2008") - CmdArgs.push_back(Args.MakeArgString("-mnan=2008")); - } - - // Add the last -mfp32/-mfpxx/-mfp64 or -mfpxx if it is enabled by default. - if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx, - options::OPT_mfp64)) { - A->claim(); - A->render(Args, CmdArgs); - } else if (mips::shouldUseFPXX( - Args, getToolChain().getTriple(), CPUName, ABIName, - getMipsFloatABI(getToolChain().getDriver(), Args))) - CmdArgs.push_back("-mfpxx"); - - // Pass on -mmips16 or -mno-mips16. However, the assembler equivalent of - // -mno-mips16 is actually -no-mips16. - if (Arg *A = - Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16)) { - if (A->getOption().matches(options::OPT_mips16)) { - A->claim(); - A->render(Args, CmdArgs); - } else { - A->claim(); - CmdArgs.push_back("-no-mips16"); - } - } - - Args.AddLastArg(CmdArgs, options::OPT_mmicromips, - options::OPT_mno_micromips); - Args.AddLastArg(CmdArgs, options::OPT_mdsp, options::OPT_mno_dsp); - Args.AddLastArg(CmdArgs, options::OPT_mdspr2, options::OPT_mno_dspr2); - - if (Arg *A = Args.getLastArg(options::OPT_mmsa, options::OPT_mno_msa)) { - // Do not use AddLastArg because not all versions of MIPS assembler - // support -mmsa / -mno-msa options. - if (A->getOption().matches(options::OPT_mmsa)) - CmdArgs.push_back(Args.MakeArgString("-mmsa")); - } - - Args.AddLastArg(CmdArgs, options::OPT_mhard_float, - options::OPT_msoft_float); - - Args.AddLastArg(CmdArgs, options::OPT_mdouble_float, - options::OPT_msingle_float); - - Args.AddLastArg(CmdArgs, options::OPT_modd_spreg, - options::OPT_mno_odd_spreg); - - AddAssemblerKPIC(getToolChain(), Args, CmdArgs); - break; - } - case llvm::Triple::systemz: { - // Always pass an -march option, since our default of z10 is later - // than the GNU assembler's default. - StringRef CPUName = getSystemZTargetCPU(Args); - CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName)); - break; - } - } - - Args.AddAllArgs(CmdArgs, options::OPT_I); - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - for (const auto &II : Inputs) - CmdArgs.push_back(II.getFilename()); - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); - - // Handle the debug info splitting at object creation time if we're - // creating an object. - // TODO: Currently only works on linux with newer objcopy. - if (Args.hasArg(options::OPT_gsplit_dwarf) && - getToolChain().getTriple().isOSLinux()) - SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output, - SplitDebugName(Args, Inputs[0])); -} - -static void AddLibgcc(const llvm::Triple &Triple, const Driver &D, - ArgStringList &CmdArgs, const ArgList &Args) { - bool isAndroid = Triple.isAndroid(); - bool isCygMing = Triple.isOSCygMing(); - bool IsIAMCU = Triple.isOSIAMCU(); - bool StaticLibgcc = Args.hasArg(options::OPT_static_libgcc) || - Args.hasArg(options::OPT_static); - if (!D.CCCIsCXX()) - CmdArgs.push_back("-lgcc"); - - if (StaticLibgcc || isAndroid) { - if (D.CCCIsCXX()) - CmdArgs.push_back("-lgcc"); - } else { - if (!D.CCCIsCXX() && !isCygMing) - CmdArgs.push_back("--as-needed"); - CmdArgs.push_back("-lgcc_s"); - if (!D.CCCIsCXX() && !isCygMing) - CmdArgs.push_back("--no-as-needed"); - } - - if (StaticLibgcc && !isAndroid && !IsIAMCU) - CmdArgs.push_back("-lgcc_eh"); - else if (!Args.hasArg(options::OPT_shared) && D.CCCIsCXX()) - CmdArgs.push_back("-lgcc"); - - // According to Android ABI, we have to link with libdl if we are - // linking with non-static libgcc. - // - // NOTE: This fixes a link error on Android MIPS as well. The non-static - // libgcc for MIPS relies on _Unwind_Find_FDE and dl_iterate_phdr from libdl. - if (isAndroid && !StaticLibgcc) - CmdArgs.push_back("-ldl"); -} - -static void AddRunTimeLibs(const ToolChain &TC, const Driver &D, - ArgStringList &CmdArgs, const ArgList &Args) { - // Make use of compiler-rt if --rtlib option is used - ToolChain::RuntimeLibType RLT = TC.GetRuntimeLibType(Args); - - switch (RLT) { - case ToolChain::RLT_CompilerRT: - switch (TC.getTriple().getOS()) { - default: - llvm_unreachable("unsupported OS"); - case llvm::Triple::Win32: - case llvm::Triple::Linux: - case llvm::Triple::Fuchsia: - addClangRT(TC, Args, CmdArgs); - break; - } - break; - case ToolChain::RLT_Libgcc: - // Make sure libgcc is not used under MSVC environment by default - if (TC.getTriple().isKnownWindowsMSVCEnvironment()) { - // Issue error diagnostic if libgcc is explicitly specified - // through command line as --rtlib option argument. - if (Args.hasArg(options::OPT_rtlib_EQ)) { - TC.getDriver().Diag(diag::err_drv_unsupported_rtlib_for_platform) - << Args.getLastArg(options::OPT_rtlib_EQ)->getValue() << "MSVC"; - } - } else - AddLibgcc(TC.getTriple(), D, CmdArgs, Args); - break; - } -} - -static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) { - switch (T.getArch()) { - case llvm::Triple::x86: - if (T.isOSIAMCU()) - return "elf_iamcu"; - return "elf_i386"; - case llvm::Triple::aarch64: - return "aarch64linux"; - case llvm::Triple::aarch64_be: - return "aarch64_be_linux"; - case llvm::Triple::arm: - case llvm::Triple::thumb: - return "armelf_linux_eabi"; - case llvm::Triple::armeb: - case llvm::Triple::thumbeb: - return "armelfb_linux_eabi"; - case llvm::Triple::ppc: - return "elf32ppclinux"; - case llvm::Triple::ppc64: - return "elf64ppc"; - case llvm::Triple::ppc64le: - return "elf64lppc"; - case llvm::Triple::sparc: - case llvm::Triple::sparcel: - return "elf32_sparc"; - case llvm::Triple::sparcv9: - return "elf64_sparc"; - case llvm::Triple::mips: - return "elf32btsmip"; - case llvm::Triple::mipsel: - return "elf32ltsmip"; - case llvm::Triple::mips64: - if (mips::hasMipsAbiArg(Args, "n32")) - return "elf32btsmipn32"; - return "elf64btsmip"; - case llvm::Triple::mips64el: - if (mips::hasMipsAbiArg(Args, "n32")) - return "elf32ltsmipn32"; - return "elf64ltsmip"; - case llvm::Triple::systemz: - return "elf64_s390"; - case llvm::Triple::x86_64: - if (T.getEnvironment() == llvm::Triple::GNUX32) - return "elf32_x86_64"; - return "elf_x86_64"; - default: - return nullptr; - } -} - -void gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const toolchains::Linux &ToolChain = - static_cast<const toolchains::Linux &>(getToolChain()); - const Driver &D = ToolChain.getDriver(); - - const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); - - const llvm::Triple::ArchType Arch = ToolChain.getArch(); - const bool isAndroid = ToolChain.getTriple().isAndroid(); - const bool IsIAMCU = ToolChain.getTriple().isOSIAMCU(); - const bool IsPIE = - !Args.hasArg(options::OPT_shared) && !Args.hasArg(options::OPT_static) && - (Args.hasArg(options::OPT_pie) || ToolChain.isPIEDefault()); - const bool HasCRTBeginEndFiles = - ToolChain.getTriple().hasEnvironment() || - (ToolChain.getTriple().getVendor() != llvm::Triple::MipsTechnologies); - - ArgStringList CmdArgs; - - // Silence warning for "clang -g foo.o -o foo" - Args.ClaimAllArgs(options::OPT_g_Group); - // and "clang -emit-llvm foo.o -o foo" - Args.ClaimAllArgs(options::OPT_emit_llvm); - // and for "clang -w foo.o -o foo". Other warning options are already - // handled somewhere else. - Args.ClaimAllArgs(options::OPT_w); - - const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); - if (llvm::sys::path::filename(Exec) == "lld") { - CmdArgs.push_back("-flavor"); - CmdArgs.push_back("old-gnu"); - CmdArgs.push_back("-target"); - CmdArgs.push_back(Args.MakeArgString(getToolChain().getTripleString())); - } - - if (!D.SysRoot.empty()) - CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); - - if (IsPIE) - CmdArgs.push_back("-pie"); - - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - - if (Args.hasArg(options::OPT_s)) - CmdArgs.push_back("-s"); - - if (Arch == llvm::Triple::armeb || Arch == llvm::Triple::thumbeb) - arm::appendEBLinkFlags(Args, CmdArgs, Triple); - - // Most Android ARM64 targets should enable the linker fix for erratum - // 843419. Only non-Cortex-A53 devices are allowed to skip this flag. - if (Arch == llvm::Triple::aarch64 && isAndroid) { - std::string CPU = getCPUName(Args, Triple); - if (CPU.empty() || CPU == "generic" || CPU == "cortex-a53") - CmdArgs.push_back("--fix-cortex-a53-843419"); - } - - for (const auto &Opt : ToolChain.ExtraOpts) - CmdArgs.push_back(Opt.c_str()); - - if (!Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("--eh-frame-hdr"); - } - - if (const char *LDMOption = getLDMOption(ToolChain.getTriple(), Args)) { - CmdArgs.push_back("-m"); - CmdArgs.push_back(LDMOption); - } else { - D.Diag(diag::err_target_unknown_triple) << Triple.str(); - return; - } - - if (Args.hasArg(options::OPT_static)) { - if (Arch == llvm::Triple::arm || Arch == llvm::Triple::armeb || - Arch == llvm::Triple::thumb || Arch == llvm::Triple::thumbeb) - CmdArgs.push_back("-Bstatic"); - else - CmdArgs.push_back("-static"); - } else if (Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back("-shared"); - } - - if (!Args.hasArg(options::OPT_static)) { - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - - if (!Args.hasArg(options::OPT_shared)) { - const std::string Loader = - D.DyldPrefix + ToolChain.getDynamicLinker(Args); - CmdArgs.push_back("-dynamic-linker"); - CmdArgs.push_back(Args.MakeArgString(Loader)); - } - } - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (!isAndroid && !IsIAMCU) { - const char *crt1 = nullptr; - if (!Args.hasArg(options::OPT_shared)) { - if (Args.hasArg(options::OPT_pg)) - crt1 = "gcrt1.o"; - else if (IsPIE) - crt1 = "Scrt1.o"; - else - crt1 = "crt1.o"; - } - if (crt1) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1))); - - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); - } - - if (IsIAMCU) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o"))); - else { - const char *crtbegin; - if (Args.hasArg(options::OPT_static)) - crtbegin = isAndroid ? "crtbegin_static.o" : "crtbeginT.o"; - else if (Args.hasArg(options::OPT_shared)) - crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o"; - else if (IsPIE) - crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o"; - else - crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o"; - - if (HasCRTBeginEndFiles) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin))); - } - - // Add crtfastmath.o if available and fast math is enabled. - ToolChain.AddFastMathRuntimeIfAvailable(Args, CmdArgs); - } - - Args.AddAllArgs(CmdArgs, options::OPT_L); - Args.AddAllArgs(CmdArgs, options::OPT_u); - - ToolChain.AddFilePathLibArgs(Args, CmdArgs); - - if (D.isUsingLTO()) - AddGoldPlugin(ToolChain, Args, CmdArgs, D.getLTOMode() == LTOK_Thin, D); - - if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) - CmdArgs.push_back("--no-demangle"); - - bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs); - bool NeedsXRayDeps = addXRayRuntime(ToolChain, Args, CmdArgs); - AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); - // The profile runtime also needs access to system libraries. - getToolChain().addProfileRTLibs(Args, CmdArgs); - - if (D.CCCIsCXX() && - !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) && - !Args.hasArg(options::OPT_static); - if (OnlyLibstdcxxStatic) - CmdArgs.push_back("-Bstatic"); - ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); - if (OnlyLibstdcxxStatic) - CmdArgs.push_back("-Bdynamic"); - CmdArgs.push_back("-lm"); - } - // Silence warnings when linking C code with a C++ '-stdlib' argument. - Args.ClaimAllArgs(options::OPT_stdlib_EQ); - - if (!Args.hasArg(options::OPT_nostdlib)) { - if (!Args.hasArg(options::OPT_nodefaultlibs)) { - if (Args.hasArg(options::OPT_static)) - CmdArgs.push_back("--start-group"); - - if (NeedsSanitizerDeps) - linkSanitizerRuntimeDeps(ToolChain, CmdArgs); - - if (NeedsXRayDeps) - linkXRayRuntimeDeps(ToolChain, Args, CmdArgs); - - bool WantPthread = Args.hasArg(options::OPT_pthread) || - Args.hasArg(options::OPT_pthreads); - - if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, - options::OPT_fno_openmp, false)) { - // OpenMP runtimes implies pthreads when using the GNU toolchain. - // FIXME: Does this really make sense for all GNU toolchains? - WantPthread = true; - - // Also link the particular OpenMP runtimes. - switch (ToolChain.getDriver().getOpenMPRuntime(Args)) { - case Driver::OMPRT_OMP: - CmdArgs.push_back("-lomp"); - break; - case Driver::OMPRT_GOMP: - CmdArgs.push_back("-lgomp"); - - // FIXME: Exclude this for platforms with libgomp that don't require - // librt. Most modern Linux platforms require it, but some may not. - CmdArgs.push_back("-lrt"); - break; - case Driver::OMPRT_IOMP5: - CmdArgs.push_back("-liomp5"); - break; - case Driver::OMPRT_Unknown: - // Already diagnosed. - break; - } - if (JA.isHostOffloading(Action::OFK_OpenMP)) - CmdArgs.push_back("-lomptarget"); - } - - AddRunTimeLibs(ToolChain, D, CmdArgs, Args); - - if (WantPthread && !isAndroid) - CmdArgs.push_back("-lpthread"); - - if (Args.hasArg(options::OPT_fsplit_stack)) - CmdArgs.push_back("--wrap=pthread_create"); - - CmdArgs.push_back("-lc"); - - // Add IAMCU specific libs, if needed. - if (IsIAMCU) - CmdArgs.push_back("-lgloss"); - - if (Args.hasArg(options::OPT_static)) - CmdArgs.push_back("--end-group"); - else - AddRunTimeLibs(ToolChain, D, CmdArgs, Args); - - // Add IAMCU specific libs (outside the group), if needed. - if (IsIAMCU) { - CmdArgs.push_back("--as-needed"); - CmdArgs.push_back("-lsoftfp"); - CmdArgs.push_back("--no-as-needed"); - } - } - - if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) { - const char *crtend; - if (Args.hasArg(options::OPT_shared)) - crtend = isAndroid ? "crtend_so.o" : "crtendS.o"; - else if (IsPIE) - crtend = isAndroid ? "crtend_android.o" : "crtendS.o"; - else - crtend = isAndroid ? "crtend_android.o" : "crtend.o"; - - if (HasCRTBeginEndFiles) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtend))); - if (!isAndroid) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); - } - } - - // Add OpenMP offloading linker script args if required. - AddOpenMPLinkerScript(getToolChain(), C, Output, Inputs, Args, CmdArgs, JA); - - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -// NaCl ARM assembly (inline or standalone) can be written with a set of macros -// for the various SFI requirements like register masking. The assembly tool -// inserts the file containing the macros as an input into all the assembly -// jobs. -void nacltools::AssemblerARM::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const toolchains::NaClToolChain &ToolChain = - static_cast<const toolchains::NaClToolChain &>(getToolChain()); - InputInfo NaClMacros(types::TY_PP_Asm, ToolChain.GetNaClArmMacrosPath(), - "nacl-arm-macros.s"); - InputInfoList NewInputs; - NewInputs.push_back(NaClMacros); - NewInputs.append(Inputs.begin(), Inputs.end()); - gnutools::Assembler::ConstructJob(C, JA, Output, NewInputs, Args, - LinkingOutput); -} - -// This is quite similar to gnutools::Linker::ConstructJob with changes that -// we use static by default, do not yet support sanitizers or LTO, and a few -// others. Eventually we can support more of that and hopefully migrate back -// to gnutools::Linker. -void nacltools::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - - const toolchains::NaClToolChain &ToolChain = - static_cast<const toolchains::NaClToolChain &>(getToolChain()); - const Driver &D = ToolChain.getDriver(); - const llvm::Triple::ArchType Arch = ToolChain.getArch(); - const bool IsStatic = - !Args.hasArg(options::OPT_dynamic) && !Args.hasArg(options::OPT_shared); - - ArgStringList CmdArgs; - - // Silence warning for "clang -g foo.o -o foo" - Args.ClaimAllArgs(options::OPT_g_Group); - // and "clang -emit-llvm foo.o -o foo" - Args.ClaimAllArgs(options::OPT_emit_llvm); - // and for "clang -w foo.o -o foo". Other warning options are already - // handled somewhere else. - Args.ClaimAllArgs(options::OPT_w); - - if (!D.SysRoot.empty()) - CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); - - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - - if (Args.hasArg(options::OPT_s)) - CmdArgs.push_back("-s"); - - // NaClToolChain doesn't have ExtraOpts like Linux; the only relevant flag - // from there is --build-id, which we do want. - CmdArgs.push_back("--build-id"); - - if (!IsStatic) - CmdArgs.push_back("--eh-frame-hdr"); - - CmdArgs.push_back("-m"); - if (Arch == llvm::Triple::x86) - CmdArgs.push_back("elf_i386_nacl"); - else if (Arch == llvm::Triple::arm) - CmdArgs.push_back("armelf_nacl"); - else if (Arch == llvm::Triple::x86_64) - CmdArgs.push_back("elf_x86_64_nacl"); - else if (Arch == llvm::Triple::mipsel) - CmdArgs.push_back("mipselelf_nacl"); - else - D.Diag(diag::err_target_unsupported_arch) << ToolChain.getArchName() - << "Native Client"; - - if (IsStatic) - CmdArgs.push_back("-static"); - else if (Args.hasArg(options::OPT_shared)) - CmdArgs.push_back("-shared"); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (!Args.hasArg(options::OPT_shared)) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt1.o"))); - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); - - const char *crtbegin; - if (IsStatic) - crtbegin = "crtbeginT.o"; - else if (Args.hasArg(options::OPT_shared)) - crtbegin = "crtbeginS.o"; - else - crtbegin = "crtbegin.o"; - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin))); - } - - Args.AddAllArgs(CmdArgs, options::OPT_L); - Args.AddAllArgs(CmdArgs, options::OPT_u); - - ToolChain.AddFilePathLibArgs(Args, CmdArgs); - - if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) - CmdArgs.push_back("--no-demangle"); - - AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); - - if (D.CCCIsCXX() && - !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - bool OnlyLibstdcxxStatic = - Args.hasArg(options::OPT_static_libstdcxx) && !IsStatic; - if (OnlyLibstdcxxStatic) - CmdArgs.push_back("-Bstatic"); - ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); - if (OnlyLibstdcxxStatic) - CmdArgs.push_back("-Bdynamic"); - CmdArgs.push_back("-lm"); - } - - if (!Args.hasArg(options::OPT_nostdlib)) { - if (!Args.hasArg(options::OPT_nodefaultlibs)) { - // Always use groups, since it has no effect on dynamic libraries. - CmdArgs.push_back("--start-group"); - CmdArgs.push_back("-lc"); - // NaCl's libc++ currently requires libpthread, so just always include it - // in the group for C++. - if (Args.hasArg(options::OPT_pthread) || - Args.hasArg(options::OPT_pthreads) || D.CCCIsCXX()) { - // Gold, used by Mips, handles nested groups differently than ld, and - // without '-lnacl' it prefers symbols from libpthread.a over libnacl.a, - // which is not a desired behaviour here. - // See https://sourceware.org/ml/binutils/2015-03/msg00034.html - if (getToolChain().getArch() == llvm::Triple::mipsel) - CmdArgs.push_back("-lnacl"); - - CmdArgs.push_back("-lpthread"); - } - - CmdArgs.push_back("-lgcc"); - CmdArgs.push_back("--as-needed"); - if (IsStatic) - CmdArgs.push_back("-lgcc_eh"); - else - CmdArgs.push_back("-lgcc_s"); - CmdArgs.push_back("--no-as-needed"); - - // Mips needs to create and use pnacl_legacy library that contains - // definitions from bitcode/pnaclmm.c and definitions for - // __nacl_tp_tls_offset() and __nacl_tp_tdb_offset(). - if (getToolChain().getArch() == llvm::Triple::mipsel) - CmdArgs.push_back("-lpnacl_legacy"); - - CmdArgs.push_back("--end-group"); - } - - if (!Args.hasArg(options::OPT_nostartfiles)) { - const char *crtend; - if (Args.hasArg(options::OPT_shared)) - crtend = "crtendS.o"; - else - crtend = "crtend.o"; - - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtend))); - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); - } - } - - const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void fuchsia::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const toolchains::Fuchsia &ToolChain = - static_cast<const toolchains::Fuchsia &>(getToolChain()); - const Driver &D = ToolChain.getDriver(); - - ArgStringList CmdArgs; - - // Silence warning for "clang -g foo.o -o foo" - Args.ClaimAllArgs(options::OPT_g_Group); - // and "clang -emit-llvm foo.o -o foo" - Args.ClaimAllArgs(options::OPT_emit_llvm); - // and for "clang -w foo.o -o foo". Other warning options are already - // handled somewhere else. - Args.ClaimAllArgs(options::OPT_w); - - const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); - if (llvm::sys::path::stem(Exec).equals_lower("lld")) { - CmdArgs.push_back("-flavor"); - CmdArgs.push_back("gnu"); - } - - if (!D.SysRoot.empty()) - CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); - - if (!Args.hasArg(options::OPT_shared) && !Args.hasArg(options::OPT_r)) - CmdArgs.push_back("-pie"); - - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - - if (Args.hasArg(options::OPT_s)) - CmdArgs.push_back("-s"); - - if (Args.hasArg(options::OPT_r)) - CmdArgs.push_back("-r"); - else - CmdArgs.push_back("--build-id"); - - if (!Args.hasArg(options::OPT_static)) - CmdArgs.push_back("--eh-frame-hdr"); - - if (Args.hasArg(options::OPT_static)) - CmdArgs.push_back("-Bstatic"); - else if (Args.hasArg(options::OPT_shared)) - CmdArgs.push_back("-shared"); - - if (!Args.hasArg(options::OPT_static)) { - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - - if (!Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back("-dynamic-linker"); - CmdArgs.push_back(Args.MakeArgString(D.DyldPrefix + "ld.so.1")); - } - } - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (!Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("Scrt1.o"))); - } - } - - Args.AddAllArgs(CmdArgs, options::OPT_L); - Args.AddAllArgs(CmdArgs, options::OPT_u); - - ToolChain.AddFilePathLibArgs(Args, CmdArgs); - - AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - if (Args.hasArg(options::OPT_static)) - CmdArgs.push_back("-Bdynamic"); - - if (D.CCCIsCXX()) { - bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) && - !Args.hasArg(options::OPT_static); - if (OnlyLibstdcxxStatic) - CmdArgs.push_back("-Bstatic"); - ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); - if (OnlyLibstdcxxStatic) - CmdArgs.push_back("-Bdynamic"); - CmdArgs.push_back("-lm"); - } - - AddRunTimeLibs(ToolChain, D, CmdArgs, Args); - - if (Args.hasArg(options::OPT_pthread) || - Args.hasArg(options::OPT_pthreads)) - CmdArgs.push_back("-lpthread"); - - if (Args.hasArg(options::OPT_fsplit_stack)) - CmdArgs.push_back("--wrap=pthread_create"); - - CmdArgs.push_back("-lc"); - } - - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void minix::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - ArgStringList CmdArgs; - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - for (const auto &II : Inputs) - CmdArgs.push_back(II.getFilename()); - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void minix::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const Driver &D = getToolChain().getDriver(); - ArgStringList CmdArgs; - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crt1.o"))); - CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o"))); - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); - CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o"))); - } - - Args.AddAllArgs(CmdArgs, - {options::OPT_L, options::OPT_T_Group, options::OPT_e}); - - AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); - - getToolChain().addProfileRTLibs(Args, CmdArgs); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - if (D.CCCIsCXX()) { - getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); - CmdArgs.push_back("-lm"); - } - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (Args.hasArg(options::OPT_pthread)) - CmdArgs.push_back("-lpthread"); - CmdArgs.push_back("-lc"); - CmdArgs.push_back("-lCompilerRT-Generic"); - CmdArgs.push_back("-L/usr/pkg/compiler-rt/lib"); - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); - } - - const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -/// DragonFly Tools - -// For now, DragonFly Assemble does just about the same as for -// FreeBSD, but this may change soon. -void dragonfly::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - ArgStringList CmdArgs; - - // When building 32-bit code on DragonFly/pc64, we have to explicitly - // instruct as in the base system to assemble 32-bit code. - if (getToolChain().getArch() == llvm::Triple::x86) - CmdArgs.push_back("--32"); - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - for (const auto &II : Inputs) - CmdArgs.push_back(II.getFilename()); - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void dragonfly::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const Driver &D = getToolChain().getDriver(); - ArgStringList CmdArgs; - - if (!D.SysRoot.empty()) - CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); - - CmdArgs.push_back("--eh-frame-hdr"); - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-Bstatic"); - } else { - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - if (Args.hasArg(options::OPT_shared)) - CmdArgs.push_back("-Bshareable"); - else { - CmdArgs.push_back("-dynamic-linker"); - CmdArgs.push_back("/usr/libexec/ld-elf.so.2"); - } - CmdArgs.push_back("--hash-style=gnu"); - CmdArgs.push_back("--enable-new-dtags"); - } - - // When building 32-bit code on DragonFly/pc64, we have to explicitly - // instruct ld in the base system to link 32-bit code. - if (getToolChain().getArch() == llvm::Triple::x86) { - CmdArgs.push_back("-m"); - CmdArgs.push_back("elf_i386"); - } - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (!Args.hasArg(options::OPT_shared)) { - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("gcrt1.o"))); - else { - if (Args.hasArg(options::OPT_pie)) - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("Scrt1.o"))); - else - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crt1.o"))); - } - } - CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o"))); - if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.o"))); - else - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); - } - - Args.AddAllArgs(CmdArgs, - {options::OPT_L, options::OPT_T_Group, options::OPT_e}); - - AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - CmdArgs.push_back("-L/usr/lib/gcc50"); - - if (!Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-rpath"); - CmdArgs.push_back("/usr/lib/gcc50"); - } - - if (D.CCCIsCXX()) { - getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); - CmdArgs.push_back("-lm"); - } - - if (Args.hasArg(options::OPT_pthread)) - CmdArgs.push_back("-lpthread"); - - if (!Args.hasArg(options::OPT_nolibc)) { - CmdArgs.push_back("-lc"); - } - - if (Args.hasArg(options::OPT_static) || - Args.hasArg(options::OPT_static_libgcc)) { - CmdArgs.push_back("-lgcc"); - CmdArgs.push_back("-lgcc_eh"); - } else { - if (Args.hasArg(options::OPT_shared_libgcc)) { - CmdArgs.push_back("-lgcc_pic"); - if (!Args.hasArg(options::OPT_shared)) - CmdArgs.push_back("-lgcc"); - } else { - CmdArgs.push_back("-lgcc"); - CmdArgs.push_back("--as-needed"); - CmdArgs.push_back("-lgcc_pic"); - CmdArgs.push_back("--no-as-needed"); - } - } - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtendS.o"))); - else - CmdArgs.push_back( - Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); - CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o"))); - } - - getToolChain().addProfileRTLibs(Args, CmdArgs); - - const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -// Try to find Exe from a Visual Studio distribution. This first tries to find -// an installed copy of Visual Studio and, failing that, looks in the PATH, -// making sure that whatever executable that's found is not a same-named exe -// from clang itself to prevent clang from falling back to itself. -static std::string FindVisualStudioExecutable(const ToolChain &TC, - const char *Exe, - const char *ClangProgramPath) { - const auto &MSVC = static_cast<const toolchains::MSVCToolChain &>(TC); - std::string visualStudioBinDir; - if (MSVC.getVisualStudioBinariesFolder(ClangProgramPath, - visualStudioBinDir)) { - SmallString<128> FilePath(visualStudioBinDir); - llvm::sys::path::append(FilePath, Exe); - if (llvm::sys::fs::can_execute(FilePath.c_str())) - return FilePath.str(); - } - - return Exe; -} - -void visualstudio::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - ArgStringList CmdArgs; - const ToolChain &TC = getToolChain(); - - assert((Output.isFilename() || Output.isNothing()) && "invalid output"); - if (Output.isFilename()) - CmdArgs.push_back( - Args.MakeArgString(std::string("-out:") + Output.getFilename())); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles) && - !C.getDriver().IsCLMode()) - CmdArgs.push_back("-defaultlib:libcmt"); - - if (!llvm::sys::Process::GetEnv("LIB")) { - // If the VC environment hasn't been configured (perhaps because the user - // did not run vcvarsall), try to build a consistent link environment. If - // the environment variable is set however, assume the user knows what - // they're doing. - std::string VisualStudioDir; - const auto &MSVC = static_cast<const toolchains::MSVCToolChain &>(TC); - if (MSVC.getVisualStudioInstallDir(VisualStudioDir)) { - SmallString<128> LibDir(VisualStudioDir); - llvm::sys::path::append(LibDir, "VC", "lib"); - switch (MSVC.getArch()) { - case llvm::Triple::x86: - // x86 just puts the libraries directly in lib - break; - case llvm::Triple::x86_64: - llvm::sys::path::append(LibDir, "amd64"); - break; - case llvm::Triple::arm: - llvm::sys::path::append(LibDir, "arm"); - break; - default: - break; - } - CmdArgs.push_back( - Args.MakeArgString(std::string("-libpath:") + LibDir.c_str())); - - if (MSVC.useUniversalCRT(VisualStudioDir)) { - std::string UniversalCRTLibPath; - if (MSVC.getUniversalCRTLibraryPath(UniversalCRTLibPath)) - CmdArgs.push_back(Args.MakeArgString(std::string("-libpath:") + - UniversalCRTLibPath)); - } - } - - std::string WindowsSdkLibPath; - if (MSVC.getWindowsSDKLibraryPath(WindowsSdkLibPath)) - CmdArgs.push_back( - Args.MakeArgString(std::string("-libpath:") + WindowsSdkLibPath)); - } - - if (!C.getDriver().IsCLMode() && Args.hasArg(options::OPT_L)) - for (const auto &LibPath : Args.getAllArgValues(options::OPT_L)) - CmdArgs.push_back(Args.MakeArgString("-libpath:" + LibPath)); - - CmdArgs.push_back("-nologo"); - - if (Args.hasArg(options::OPT_g_Group, options::OPT__SLASH_Z7, - options::OPT__SLASH_Zd)) - CmdArgs.push_back("-debug"); - - bool DLL = Args.hasArg(options::OPT__SLASH_LD, options::OPT__SLASH_LDd, - options::OPT_shared); - if (DLL) { - CmdArgs.push_back(Args.MakeArgString("-dll")); - - SmallString<128> ImplibName(Output.getFilename()); - llvm::sys::path::replace_extension(ImplibName, "lib"); - CmdArgs.push_back(Args.MakeArgString(std::string("-implib:") + ImplibName)); - } - - if (TC.getSanitizerArgs().needsAsanRt()) { - CmdArgs.push_back(Args.MakeArgString("-debug")); - CmdArgs.push_back(Args.MakeArgString("-incremental:no")); - if (TC.getSanitizerArgs().needsSharedAsanRt() || - Args.hasArg(options::OPT__SLASH_MD, options::OPT__SLASH_MDd)) { - for (const auto &Lib : {"asan_dynamic", "asan_dynamic_runtime_thunk"}) - CmdArgs.push_back(TC.getCompilerRTArgString(Args, Lib)); - // Make sure the dynamic runtime thunk is not optimized out at link time - // to ensure proper SEH handling. - CmdArgs.push_back(Args.MakeArgString( - TC.getArch() == llvm::Triple::x86 - ? "-include:___asan_seh_interceptor" - : "-include:__asan_seh_interceptor")); - } else if (DLL) { - CmdArgs.push_back(TC.getCompilerRTArgString(Args, "asan_dll_thunk")); - } else { - for (const auto &Lib : {"asan", "asan_cxx"}) - CmdArgs.push_back(TC.getCompilerRTArgString(Args, Lib)); - } - } - - Args.AddAllArgValues(CmdArgs, options::OPT__SLASH_link); - - if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, - options::OPT_fno_openmp, false)) { - CmdArgs.push_back("-nodefaultlib:vcomp.lib"); - CmdArgs.push_back("-nodefaultlib:vcompd.lib"); - CmdArgs.push_back(Args.MakeArgString(std::string("-libpath:") + - TC.getDriver().Dir + "/../lib")); - switch (TC.getDriver().getOpenMPRuntime(Args)) { - case Driver::OMPRT_OMP: - CmdArgs.push_back("-defaultlib:libomp.lib"); - break; - case Driver::OMPRT_IOMP5: - CmdArgs.push_back("-defaultlib:libiomp5md.lib"); - break; - case Driver::OMPRT_GOMP: - break; - case Driver::OMPRT_Unknown: - // Already diagnosed. - break; - } - } - - // Add compiler-rt lib in case if it was explicitly - // specified as an argument for --rtlib option. - if (!Args.hasArg(options::OPT_nostdlib)) { - AddRunTimeLibs(TC, TC.getDriver(), CmdArgs, Args); - } - - // Add filenames, libraries, and other linker inputs. - for (const auto &Input : Inputs) { - if (Input.isFilename()) { - CmdArgs.push_back(Input.getFilename()); - continue; - } - - const Arg &A = Input.getInputArg(); - - // Render -l options differently for the MSVC linker. - if (A.getOption().matches(options::OPT_l)) { - StringRef Lib = A.getValue(); - const char *LinkLibArg; - if (Lib.endswith(".lib")) - LinkLibArg = Args.MakeArgString(Lib); - else - LinkLibArg = Args.MakeArgString(Lib + ".lib"); - CmdArgs.push_back(LinkLibArg); - continue; - } - - // Otherwise, this is some other kind of linker input option like -Wl, -z, - // or -L. Render it, even if MSVC doesn't understand it. - A.renderAsInput(Args, CmdArgs); - } - - TC.addProfileRTLibs(Args, CmdArgs); - - // We need to special case some linker paths. In the case of lld, we need to - // translate 'lld' into 'lld-link', and in the case of the regular msvc - // linker, we need to use a special search algorithm. - llvm::SmallString<128> linkPath; - StringRef Linker = Args.getLastArgValue(options::OPT_fuse_ld_EQ, "link"); - if (Linker.equals_lower("lld")) - Linker = "lld-link"; - - if (Linker.equals_lower("link")) { - // If we're using the MSVC linker, it's not sufficient to just use link - // from the program PATH, because other environments like GnuWin32 install - // their own link.exe which may come first. - linkPath = FindVisualStudioExecutable(TC, "link.exe", - C.getDriver().getClangProgramPath()); - } else { - linkPath = Linker; - llvm::sys::path::replace_extension(linkPath, "exe"); - linkPath = TC.GetProgramPath(linkPath.c_str()); - } - - const char *Exec = Args.MakeArgString(linkPath); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void visualstudio::Compiler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - C.addCommand(GetCommand(C, JA, Output, Inputs, Args, LinkingOutput)); -} - -std::unique_ptr<Command> visualstudio::Compiler::GetCommand( - Compilation &C, const JobAction &JA, const InputInfo &Output, - const InputInfoList &Inputs, const ArgList &Args, - const char *LinkingOutput) const { - ArgStringList CmdArgs; - CmdArgs.push_back("/nologo"); - CmdArgs.push_back("/c"); // Compile only. - CmdArgs.push_back("/W0"); // No warnings. - - // The goal is to be able to invoke this tool correctly based on - // any flag accepted by clang-cl. - - // These are spelled the same way in clang and cl.exe,. - Args.AddAllArgs(CmdArgs, {options::OPT_D, options::OPT_U, options::OPT_I}); - - // Optimization level. - if (Arg *A = Args.getLastArg(options::OPT_fbuiltin, options::OPT_fno_builtin)) - CmdArgs.push_back(A->getOption().getID() == options::OPT_fbuiltin ? "/Oi" - : "/Oi-"); - if (Arg *A = Args.getLastArg(options::OPT_O, options::OPT_O0)) { - if (A->getOption().getID() == options::OPT_O0) { - CmdArgs.push_back("/Od"); - } else { - CmdArgs.push_back("/Og"); - - StringRef OptLevel = A->getValue(); - if (OptLevel == "s" || OptLevel == "z") - CmdArgs.push_back("/Os"); - else - CmdArgs.push_back("/Ot"); - - CmdArgs.push_back("/Ob2"); - } - } - if (Arg *A = Args.getLastArg(options::OPT_fomit_frame_pointer, - options::OPT_fno_omit_frame_pointer)) - CmdArgs.push_back(A->getOption().getID() == options::OPT_fomit_frame_pointer - ? "/Oy" - : "/Oy-"); - if (!Args.hasArg(options::OPT_fwritable_strings)) - CmdArgs.push_back("/GF"); - - // Flags for which clang-cl has an alias. - // FIXME: How can we ensure this stays in sync with relevant clang-cl options? - - if (Args.hasFlag(options::OPT__SLASH_GR_, options::OPT__SLASH_GR, - /*default=*/false)) - CmdArgs.push_back("/GR-"); - - if (Args.hasFlag(options::OPT__SLASH_GS_, options::OPT__SLASH_GS, - /*default=*/false)) - CmdArgs.push_back("/GS-"); - - if (Arg *A = Args.getLastArg(options::OPT_ffunction_sections, - options::OPT_fno_function_sections)) - CmdArgs.push_back(A->getOption().getID() == options::OPT_ffunction_sections - ? "/Gy" - : "/Gy-"); - if (Arg *A = Args.getLastArg(options::OPT_fdata_sections, - options::OPT_fno_data_sections)) - CmdArgs.push_back( - A->getOption().getID() == options::OPT_fdata_sections ? "/Gw" : "/Gw-"); - if (Args.hasArg(options::OPT_fsyntax_only)) - CmdArgs.push_back("/Zs"); - if (Args.hasArg(options::OPT_g_Flag, options::OPT_gline_tables_only, - options::OPT__SLASH_Z7)) - CmdArgs.push_back("/Z7"); - - std::vector<std::string> Includes = - Args.getAllArgValues(options::OPT_include); - for (const auto &Include : Includes) - CmdArgs.push_back(Args.MakeArgString(std::string("/FI") + Include)); - - // Flags that can simply be passed through. - Args.AddAllArgs(CmdArgs, options::OPT__SLASH_LD); - Args.AddAllArgs(CmdArgs, options::OPT__SLASH_LDd); - Args.AddAllArgs(CmdArgs, options::OPT__SLASH_GX); - Args.AddAllArgs(CmdArgs, options::OPT__SLASH_GX_); - Args.AddAllArgs(CmdArgs, options::OPT__SLASH_EH); - Args.AddAllArgs(CmdArgs, options::OPT__SLASH_Zl); - - // The order of these flags is relevant, so pick the last one. - if (Arg *A = Args.getLastArg(options::OPT__SLASH_MD, options::OPT__SLASH_MDd, - options::OPT__SLASH_MT, options::OPT__SLASH_MTd)) - A->render(Args, CmdArgs); - - // Use MSVC's default threadsafe statics behaviour unless there was a flag. - if (Arg *A = Args.getLastArg(options::OPT_fthreadsafe_statics, - options::OPT_fno_threadsafe_statics)) { - CmdArgs.push_back(A->getOption().getID() == options::OPT_fthreadsafe_statics - ? "/Zc:threadSafeInit" - : "/Zc:threadSafeInit-"); - } - - // Pass through all unknown arguments so that the fallback command can see - // them too. - Args.AddAllArgs(CmdArgs, options::OPT_UNKNOWN); - - // Input filename. - assert(Inputs.size() == 1); - const InputInfo &II = Inputs[0]; - assert(II.getType() == types::TY_C || II.getType() == types::TY_CXX); - CmdArgs.push_back(II.getType() == types::TY_C ? "/Tc" : "/Tp"); - if (II.isFilename()) - CmdArgs.push_back(II.getFilename()); - else - II.getInputArg().renderAsInput(Args, CmdArgs); - - // Output filename. - assert(Output.getType() == types::TY_Object); - const char *Fo = - Args.MakeArgString(std::string("/Fo") + Output.getFilename()); - CmdArgs.push_back(Fo); - - const Driver &D = getToolChain().getDriver(); - std::string Exec = FindVisualStudioExecutable(getToolChain(), "cl.exe", - D.getClangProgramPath()); - return llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec), - CmdArgs, Inputs); -} - -/// MinGW Tools -void MinGW::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - ArgStringList CmdArgs; - - if (getToolChain().getArch() == llvm::Triple::x86) { - CmdArgs.push_back("--32"); - } else if (getToolChain().getArch() == llvm::Triple::x86_64) { - CmdArgs.push_back("--64"); - } - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - for (const auto &II : Inputs) - CmdArgs.push_back(II.getFilename()); - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); - - if (Args.hasArg(options::OPT_gsplit_dwarf)) - SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output, - SplitDebugName(Args, Inputs[0])); -} - -void MinGW::Linker::AddLibGCC(const ArgList &Args, - ArgStringList &CmdArgs) const { - if (Args.hasArg(options::OPT_mthreads)) - CmdArgs.push_back("-lmingwthrd"); - CmdArgs.push_back("-lmingw32"); - - // Make use of compiler-rt if --rtlib option is used - ToolChain::RuntimeLibType RLT = getToolChain().GetRuntimeLibType(Args); - if (RLT == ToolChain::RLT_Libgcc) { - bool Static = Args.hasArg(options::OPT_static_libgcc) || - Args.hasArg(options::OPT_static); - bool Shared = Args.hasArg(options::OPT_shared); - bool CXX = getToolChain().getDriver().CCCIsCXX(); - - if (Static || (!CXX && !Shared)) { - CmdArgs.push_back("-lgcc"); - CmdArgs.push_back("-lgcc_eh"); - } else { - CmdArgs.push_back("-lgcc_s"); - CmdArgs.push_back("-lgcc"); - } - } else { - AddRunTimeLibs(getToolChain(), getToolChain().getDriver(), CmdArgs, Args); - } - - CmdArgs.push_back("-lmoldname"); - CmdArgs.push_back("-lmingwex"); - CmdArgs.push_back("-lmsvcrt"); -} - -void MinGW::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const ToolChain &TC = getToolChain(); - const Driver &D = TC.getDriver(); - // const SanitizerArgs &Sanitize = TC.getSanitizerArgs(); - - ArgStringList CmdArgs; - - // Silence warning for "clang -g foo.o -o foo" - Args.ClaimAllArgs(options::OPT_g_Group); - // and "clang -emit-llvm foo.o -o foo" - Args.ClaimAllArgs(options::OPT_emit_llvm); - // and for "clang -w foo.o -o foo". Other warning options are already - // handled somewhere else. - Args.ClaimAllArgs(options::OPT_w); - - StringRef LinkerName = Args.getLastArgValue(options::OPT_fuse_ld_EQ, "ld"); - if (LinkerName.equals_lower("lld")) { - CmdArgs.push_back("-flavor"); - CmdArgs.push_back("gnu"); - } else if (!LinkerName.equals_lower("ld")) { - D.Diag(diag::err_drv_unsupported_linker) << LinkerName; - } - - if (!D.SysRoot.empty()) - CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); - - if (Args.hasArg(options::OPT_s)) - CmdArgs.push_back("-s"); - - CmdArgs.push_back("-m"); - if (TC.getArch() == llvm::Triple::x86) - CmdArgs.push_back("i386pe"); - if (TC.getArch() == llvm::Triple::x86_64) - CmdArgs.push_back("i386pep"); - if (TC.getArch() == llvm::Triple::arm) - CmdArgs.push_back("thumb2pe"); - - if (Args.hasArg(options::OPT_mwindows)) { - CmdArgs.push_back("--subsystem"); - CmdArgs.push_back("windows"); - } else if (Args.hasArg(options::OPT_mconsole)) { - CmdArgs.push_back("--subsystem"); - CmdArgs.push_back("console"); - } - - if (Args.hasArg(options::OPT_static)) - CmdArgs.push_back("-Bstatic"); - else { - if (Args.hasArg(options::OPT_mdll)) - CmdArgs.push_back("--dll"); - else if (Args.hasArg(options::OPT_shared)) - CmdArgs.push_back("--shared"); - CmdArgs.push_back("-Bdynamic"); - if (Args.hasArg(options::OPT_mdll) || Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back("-e"); - if (TC.getArch() == llvm::Triple::x86) - CmdArgs.push_back("_DllMainCRTStartup@12"); - else - CmdArgs.push_back("DllMainCRTStartup"); - CmdArgs.push_back("--enable-auto-image-base"); - } - } - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - Args.AddAllArgs(CmdArgs, options::OPT_e); - // FIXME: add -N, -n flags - Args.AddLastArg(CmdArgs, options::OPT_r); - Args.AddLastArg(CmdArgs, options::OPT_s); - Args.AddLastArg(CmdArgs, options::OPT_t); - Args.AddAllArgs(CmdArgs, options::OPT_u_Group); - Args.AddLastArg(CmdArgs, options::OPT_Z_Flag); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_mdll)) { - CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("dllcrt2.o"))); - } else { - if (Args.hasArg(options::OPT_municode)) - CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2u.o"))); - else - CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2.o"))); - } - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("gcrt2.o"))); - CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtbegin.o"))); - } - - Args.AddAllArgs(CmdArgs, options::OPT_L); - TC.AddFilePathLibArgs(Args, CmdArgs); - AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA); - - // TODO: Add ASan stuff here - - // TODO: Add profile stuff here - - if (D.CCCIsCXX() && - !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) && - !Args.hasArg(options::OPT_static); - if (OnlyLibstdcxxStatic) - CmdArgs.push_back("-Bstatic"); - TC.AddCXXStdlibLibArgs(Args, CmdArgs); - if (OnlyLibstdcxxStatic) - CmdArgs.push_back("-Bdynamic"); - } - - if (!Args.hasArg(options::OPT_nostdlib)) { - if (!Args.hasArg(options::OPT_nodefaultlibs)) { - if (Args.hasArg(options::OPT_static)) - CmdArgs.push_back("--start-group"); - - if (Args.hasArg(options::OPT_fstack_protector) || - Args.hasArg(options::OPT_fstack_protector_strong) || - Args.hasArg(options::OPT_fstack_protector_all)) { - CmdArgs.push_back("-lssp_nonshared"); - CmdArgs.push_back("-lssp"); - } - if (Args.hasArg(options::OPT_fopenmp)) - CmdArgs.push_back("-lgomp"); - - AddLibGCC(Args, CmdArgs); - - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lgmon"); - - if (Args.hasArg(options::OPT_pthread)) - CmdArgs.push_back("-lpthread"); - - // add system libraries - if (Args.hasArg(options::OPT_mwindows)) { - CmdArgs.push_back("-lgdi32"); - CmdArgs.push_back("-lcomdlg32"); - } - CmdArgs.push_back("-ladvapi32"); - CmdArgs.push_back("-lshell32"); - CmdArgs.push_back("-luser32"); - CmdArgs.push_back("-lkernel32"); - - if (Args.hasArg(options::OPT_static)) - CmdArgs.push_back("--end-group"); - else if (!LinkerName.equals_lower("lld")) - AddLibGCC(Args, CmdArgs); - } - - if (!Args.hasArg(options::OPT_nostartfiles)) { - // Add crtfastmath.o if available and fast math is enabled. - TC.AddFastMathRuntimeIfAvailable(Args, CmdArgs); - - CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtend.o"))); - } - } - const char *Exec = Args.MakeArgString(TC.GetProgramPath(LinkerName.data())); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -/// XCore Tools -// We pass assemble and link construction to the xcc tool. - -void XCore::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - ArgStringList CmdArgs; - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - CmdArgs.push_back("-c"); - - if (Args.hasArg(options::OPT_v)) - CmdArgs.push_back("-v"); - - if (Arg *A = Args.getLastArg(options::OPT_g_Group)) - if (!A->getOption().matches(options::OPT_g0)) - CmdArgs.push_back("-g"); - - if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm, - false)) - CmdArgs.push_back("-fverbose-asm"); - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - for (const auto &II : Inputs) - CmdArgs.push_back(II.getFilename()); - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("xcc")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void XCore::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - ArgStringList CmdArgs; - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - if (Args.hasArg(options::OPT_v)) - CmdArgs.push_back("-v"); - - // Pass -fexceptions through to the linker if it was present. - if (Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions, - false)) - CmdArgs.push_back("-fexceptions"); - - AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); - - const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("xcc")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void CrossWindows::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - const auto &TC = - static_cast<const toolchains::CrossWindowsToolChain &>(getToolChain()); - ArgStringList CmdArgs; - const char *Exec; - - switch (TC.getArch()) { - default: - llvm_unreachable("unsupported architecture"); - case llvm::Triple::arm: - case llvm::Triple::thumb: - break; - case llvm::Triple::x86: - CmdArgs.push_back("--32"); - break; - case llvm::Triple::x86_64: - CmdArgs.push_back("--64"); - break; - } - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - for (const auto &Input : Inputs) - CmdArgs.push_back(Input.getFilename()); - - const std::string Assembler = TC.GetProgramPath("as"); - Exec = Args.MakeArgString(Assembler); - - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void CrossWindows::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const auto &TC = - static_cast<const toolchains::CrossWindowsToolChain &>(getToolChain()); - const llvm::Triple &T = TC.getTriple(); - const Driver &D = TC.getDriver(); - SmallString<128> EntryPoint; - ArgStringList CmdArgs; - const char *Exec; - - // Silence warning for "clang -g foo.o -o foo" - Args.ClaimAllArgs(options::OPT_g_Group); - // and "clang -emit-llvm foo.o -o foo" - Args.ClaimAllArgs(options::OPT_emit_llvm); - // and for "clang -w foo.o -o foo" - Args.ClaimAllArgs(options::OPT_w); - // Other warning options are already handled somewhere else. - - if (!D.SysRoot.empty()) - CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); - - if (Args.hasArg(options::OPT_pie)) - CmdArgs.push_back("-pie"); - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - if (Args.hasArg(options::OPT_s)) - CmdArgs.push_back("--strip-all"); - - CmdArgs.push_back("-m"); - switch (TC.getArch()) { - default: - llvm_unreachable("unsupported architecture"); - case llvm::Triple::arm: - case llvm::Triple::thumb: - // FIXME: this is incorrect for WinCE - CmdArgs.push_back("thumb2pe"); - break; - case llvm::Triple::x86: - CmdArgs.push_back("i386pe"); - EntryPoint.append("_"); - break; - case llvm::Triple::x86_64: - CmdArgs.push_back("i386pep"); - break; - } - - if (Args.hasArg(options::OPT_shared)) { - switch (T.getArch()) { - default: - llvm_unreachable("unsupported architecture"); - case llvm::Triple::arm: - case llvm::Triple::thumb: - case llvm::Triple::x86_64: - EntryPoint.append("_DllMainCRTStartup"); - break; - case llvm::Triple::x86: - EntryPoint.append("_DllMainCRTStartup@12"); - break; - } - - CmdArgs.push_back("-shared"); - CmdArgs.push_back("-Bdynamic"); - - CmdArgs.push_back("--enable-auto-image-base"); - - CmdArgs.push_back("--entry"); - CmdArgs.push_back(Args.MakeArgString(EntryPoint)); - } else { - EntryPoint.append("mainCRTStartup"); - - CmdArgs.push_back(Args.hasArg(options::OPT_static) ? "-Bstatic" - : "-Bdynamic"); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - CmdArgs.push_back("--entry"); - CmdArgs.push_back(Args.MakeArgString(EntryPoint)); - } - - // FIXME: handle subsystem - } - - // NOTE: deal with multiple definitions on Windows (e.g. COMDAT) - CmdArgs.push_back("--allow-multiple-definition"); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_rdynamic)) { - SmallString<261> ImpLib(Output.getFilename()); - llvm::sys::path::replace_extension(ImpLib, ".lib"); - - CmdArgs.push_back("--out-implib"); - CmdArgs.push_back(Args.MakeArgString(ImpLib)); - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - const std::string CRTPath(D.SysRoot + "/usr/lib/"); - const char *CRTBegin; - - CRTBegin = - Args.hasArg(options::OPT_shared) ? "crtbeginS.obj" : "crtbegin.obj"; - CmdArgs.push_back(Args.MakeArgString(CRTPath + CRTBegin)); - } - - Args.AddAllArgs(CmdArgs, options::OPT_L); - TC.AddFilePathLibArgs(Args, CmdArgs); - AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA); - - if (D.CCCIsCXX() && !Args.hasArg(options::OPT_nostdlib) && - !Args.hasArg(options::OPT_nodefaultlibs)) { - bool StaticCXX = Args.hasArg(options::OPT_static_libstdcxx) && - !Args.hasArg(options::OPT_static); - if (StaticCXX) - CmdArgs.push_back("-Bstatic"); - TC.AddCXXStdlibLibArgs(Args, CmdArgs); - if (StaticCXX) - CmdArgs.push_back("-Bdynamic"); - } - - if (!Args.hasArg(options::OPT_nostdlib)) { - if (!Args.hasArg(options::OPT_nodefaultlibs)) { - // TODO handle /MT[d] /MD[d] - CmdArgs.push_back("-lmsvcrt"); - AddRunTimeLibs(TC, D, CmdArgs, Args); - } - } - - if (TC.getSanitizerArgs().needsAsanRt()) { - // TODO handle /MT[d] /MD[d] - if (Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back(TC.getCompilerRTArgString(Args, "asan_dll_thunk")); - } else { - for (const auto &Lib : {"asan_dynamic", "asan_dynamic_runtime_thunk"}) - CmdArgs.push_back(TC.getCompilerRTArgString(Args, Lib)); - // Make sure the dynamic runtime thunk is not optimized out at link time - // to ensure proper SEH handling. - CmdArgs.push_back(Args.MakeArgString("--undefined")); - CmdArgs.push_back(Args.MakeArgString(TC.getArch() == llvm::Triple::x86 - ? "___asan_seh_interceptor" - : "__asan_seh_interceptor")); - } - } - - Exec = Args.MakeArgString(TC.GetLinkerPath()); - - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void tools::SHAVE::Compiler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - ArgStringList CmdArgs; - assert(Inputs.size() == 1); - const InputInfo &II = Inputs[0]; - assert(II.getType() == types::TY_C || II.getType() == types::TY_CXX || - II.getType() == types::TY_PP_CXX); - - if (JA.getKind() == Action::PreprocessJobClass) { - Args.ClaimAllArgs(); - CmdArgs.push_back("-E"); - } else { - assert(Output.getType() == types::TY_PP_Asm); // Require preprocessed asm. - CmdArgs.push_back("-S"); - CmdArgs.push_back("-fno-exceptions"); // Always do this even if unspecified. - } - CmdArgs.push_back("-DMYRIAD2"); - - // Append all -I, -iquote, -isystem paths, defines/undefines, - // 'f' flags, optimize flags, and warning options. - // These are spelled the same way in clang and moviCompile. - Args.AddAllArgsExcept( - CmdArgs, - {options::OPT_I_Group, options::OPT_clang_i_Group, options::OPT_std_EQ, - options::OPT_D, options::OPT_U, options::OPT_f_Group, - options::OPT_f_clang_Group, options::OPT_g_Group, options::OPT_M_Group, - options::OPT_O_Group, options::OPT_W_Group, options::OPT_mcpu_EQ}, - {options::OPT_fno_split_dwarf_inlining}); - Args.hasArg(options::OPT_fno_split_dwarf_inlining); // Claim it if present. - - // If we're producing a dependency file, and assembly is the final action, - // then the name of the target in the dependency file should be the '.o' - // file, not the '.s' file produced by this step. For example, instead of - // /tmp/mumble.s: mumble.c .../someheader.h - // the filename on the lefthand side should be "mumble.o" - if (Args.getLastArg(options::OPT_MF) && !Args.getLastArg(options::OPT_MT) && - C.getActions().size() == 1 && - C.getActions()[0]->getKind() == Action::AssembleJobClass) { - Arg *A = Args.getLastArg(options::OPT_o); - if (A) { - CmdArgs.push_back("-MT"); - CmdArgs.push_back(Args.MakeArgString(A->getValue())); - } - } - - CmdArgs.push_back(II.getFilename()); - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - std::string Exec = - Args.MakeArgString(getToolChain().GetProgramPath("moviCompile")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec), - CmdArgs, Inputs)); -} - -void tools::SHAVE::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - ArgStringList CmdArgs; - - assert(Inputs.size() == 1); - const InputInfo &II = Inputs[0]; - assert(II.getType() == types::TY_PP_Asm); // Require preprocessed asm input. - assert(Output.getType() == types::TY_Object); - - CmdArgs.push_back("-no6thSlotCompression"); - const Arg *CPUArg = Args.getLastArg(options::OPT_mcpu_EQ); - if (CPUArg) - CmdArgs.push_back( - Args.MakeArgString("-cv:" + StringRef(CPUArg->getValue()))); - CmdArgs.push_back("-noSPrefixing"); - CmdArgs.push_back("-a"); // Mystery option. - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - for (const Arg *A : Args.filtered(options::OPT_I, options::OPT_isystem)) { - A->claim(); - CmdArgs.push_back( - Args.MakeArgString(std::string("-i:") + A->getValue(0))); - } - CmdArgs.push_back("-elf"); // Output format. - CmdArgs.push_back(II.getFilename()); - CmdArgs.push_back( - Args.MakeArgString(std::string("-o:") + Output.getFilename())); - - std::string Exec = - Args.MakeArgString(getToolChain().GetProgramPath("moviAsm")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec), - CmdArgs, Inputs)); -} - -void tools::Myriad::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const auto &TC = - static_cast<const toolchains::MyriadToolChain &>(getToolChain()); - const llvm::Triple &T = TC.getTriple(); - ArgStringList CmdArgs; - bool UseStartfiles = - !Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles); - bool UseDefaultLibs = - !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs); - // Silence warning if the args contain both -nostdlib and -stdlib=. - Args.getLastArg(options::OPT_stdlib_EQ); - - if (T.getArch() == llvm::Triple::sparc) - CmdArgs.push_back("-EB"); - else // SHAVE assumes little-endian, and sparcel is expressly so. - CmdArgs.push_back("-EL"); - - // The remaining logic is mostly like gnutools::Linker::ConstructJob, - // but we never pass through a --sysroot option and various other bits. - // For example, there are no sanitizers (yet) nor gold linker. - - // Eat some arguments that may be present but have no effect. - Args.ClaimAllArgs(options::OPT_g_Group); - Args.ClaimAllArgs(options::OPT_w); - Args.ClaimAllArgs(options::OPT_static_libgcc); - - if (Args.hasArg(options::OPT_s)) // Pass the 'strip' option. - CmdArgs.push_back("-s"); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - if (UseStartfiles) { - // If you want startfiles, it means you want the builtin crti and crtbegin, - // but not crt0. Myriad link commands provide their own crt0.o as needed. - CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crti.o"))); - CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtbegin.o"))); - } - - Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group, - options::OPT_e, options::OPT_s, options::OPT_t, - options::OPT_Z_Flag, options::OPT_r}); - - TC.AddFilePathLibArgs(Args, CmdArgs); - - bool NeedsSanitizerDeps = addSanitizerRuntimes(TC, Args, CmdArgs); - AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); - - if (UseDefaultLibs) { - if (NeedsSanitizerDeps) - linkSanitizerRuntimeDeps(TC, CmdArgs); - if (C.getDriver().CCCIsCXX()) { - if (TC.GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) { - CmdArgs.push_back("-lc++"); - CmdArgs.push_back("-lc++abi"); - } else - CmdArgs.push_back("-lstdc++"); - } - if (T.getOS() == llvm::Triple::RTEMS) { - CmdArgs.push_back("--start-group"); - CmdArgs.push_back("-lc"); - CmdArgs.push_back("-lgcc"); // circularly dependent on rtems - // You must provide your own "-L" option to enable finding these. - CmdArgs.push_back("-lrtemscpu"); - CmdArgs.push_back("-lrtemsbsp"); - CmdArgs.push_back("--end-group"); - } else { - CmdArgs.push_back("-lc"); - CmdArgs.push_back("-lgcc"); - } - } - if (UseStartfiles) { - CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtend.o"))); - CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtn.o"))); - } - - std::string Exec = - Args.MakeArgString(TC.GetProgramPath("sparc-myriad-elf-ld")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec), - CmdArgs, Inputs)); -} - -void PS4cpu::Assemble::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - claimNoWarnArgs(Args); - ArgStringList CmdArgs; - - Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); - - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - - assert(Inputs.size() == 1 && "Unexpected number of inputs."); - const InputInfo &Input = Inputs[0]; - assert(Input.isFilename() && "Invalid input."); - CmdArgs.push_back(Input.getFilename()); - - const char *Exec = - Args.MakeArgString(getToolChain().GetProgramPath("orbis-as")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -static void AddPS4SanitizerArgs(const ToolChain &TC, ArgStringList &CmdArgs) { - const SanitizerArgs &SanArgs = TC.getSanitizerArgs(); - if (SanArgs.needsUbsanRt()) { - CmdArgs.push_back("-lSceDbgUBSanitizer_stub_weak"); - } - if (SanArgs.needsAsanRt()) { - CmdArgs.push_back("-lSceDbgAddressSanitizer_stub_weak"); - } -} - -static void ConstructPS4LinkJob(const Tool &T, Compilation &C, - const JobAction &JA, const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) { - const toolchains::FreeBSD &ToolChain = - static_cast<const toolchains::FreeBSD &>(T.getToolChain()); - const Driver &D = ToolChain.getDriver(); - ArgStringList CmdArgs; - - // Silence warning for "clang -g foo.o -o foo" - Args.ClaimAllArgs(options::OPT_g_Group); - // and "clang -emit-llvm foo.o -o foo" - Args.ClaimAllArgs(options::OPT_emit_llvm); - // and for "clang -w foo.o -o foo". Other warning options are already - // handled somewhere else. - Args.ClaimAllArgs(options::OPT_w); - - if (!D.SysRoot.empty()) - CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); - - if (Args.hasArg(options::OPT_pie)) - CmdArgs.push_back("-pie"); - - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - if (Args.hasArg(options::OPT_shared)) - CmdArgs.push_back("--oformat=so"); - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - AddPS4SanitizerArgs(ToolChain, CmdArgs); - - Args.AddAllArgs(CmdArgs, options::OPT_L); - Args.AddAllArgs(CmdArgs, options::OPT_T_Group); - Args.AddAllArgs(CmdArgs, options::OPT_e); - Args.AddAllArgs(CmdArgs, options::OPT_s); - Args.AddAllArgs(CmdArgs, options::OPT_t); - Args.AddAllArgs(CmdArgs, options::OPT_r); - - if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) - CmdArgs.push_back("--no-demangle"); - - AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); - - if (Args.hasArg(options::OPT_pthread)) { - CmdArgs.push_back("-lpthread"); - } - - const char *Exec = Args.MakeArgString(ToolChain.GetProgramPath("orbis-ld")); - - C.addCommand(llvm::make_unique<Command>(JA, T, Exec, CmdArgs, Inputs)); -} - -static void ConstructGoldLinkJob(const Tool &T, Compilation &C, - const JobAction &JA, const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) { - const toolchains::FreeBSD &ToolChain = - static_cast<const toolchains::FreeBSD &>(T.getToolChain()); - const Driver &D = ToolChain.getDriver(); - ArgStringList CmdArgs; - - // Silence warning for "clang -g foo.o -o foo" - Args.ClaimAllArgs(options::OPT_g_Group); - // and "clang -emit-llvm foo.o -o foo" - Args.ClaimAllArgs(options::OPT_emit_llvm); - // and for "clang -w foo.o -o foo". Other warning options are already - // handled somewhere else. - Args.ClaimAllArgs(options::OPT_w); - - if (!D.SysRoot.empty()) - CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); - - if (Args.hasArg(options::OPT_pie)) - CmdArgs.push_back("-pie"); - - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-Bstatic"); - } else { - if (Args.hasArg(options::OPT_rdynamic)) - CmdArgs.push_back("-export-dynamic"); - CmdArgs.push_back("--eh-frame-hdr"); - if (Args.hasArg(options::OPT_shared)) { - CmdArgs.push_back("-Bshareable"); - } else { - CmdArgs.push_back("-dynamic-linker"); - CmdArgs.push_back("/libexec/ld-elf.so.1"); - } - CmdArgs.push_back("--enable-new-dtags"); - } - - if (Output.isFilename()) { - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - } else { - assert(Output.isNothing() && "Invalid output."); - } - - AddPS4SanitizerArgs(ToolChain, CmdArgs); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - const char *crt1 = nullptr; - if (!Args.hasArg(options::OPT_shared)) { - if (Args.hasArg(options::OPT_pg)) - crt1 = "gcrt1.o"; - else if (Args.hasArg(options::OPT_pie)) - crt1 = "Scrt1.o"; - else - crt1 = "crt1.o"; - } - if (crt1) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1))); - - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); - - const char *crtbegin = nullptr; - if (Args.hasArg(options::OPT_static)) - crtbegin = "crtbeginT.o"; - else if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) - crtbegin = "crtbeginS.o"; - else - crtbegin = "crtbegin.o"; - - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin))); - } - - Args.AddAllArgs(CmdArgs, options::OPT_L); - ToolChain.AddFilePathLibArgs(Args, CmdArgs); - Args.AddAllArgs(CmdArgs, options::OPT_T_Group); - Args.AddAllArgs(CmdArgs, options::OPT_e); - Args.AddAllArgs(CmdArgs, options::OPT_s); - Args.AddAllArgs(CmdArgs, options::OPT_t); - Args.AddAllArgs(CmdArgs, options::OPT_r); - - if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) - CmdArgs.push_back("--no-demangle"); - - AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { - // For PS4, we always want to pass libm, libstdc++ and libkernel - // libraries for both C and C++ compilations. - CmdArgs.push_back("-lkernel"); - if (D.CCCIsCXX()) { - ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lm_p"); - else - CmdArgs.push_back("-lm"); - } - // FIXME: For some reason GCC passes -lgcc and -lgcc_s before adding - // the default system libraries. Just mimic this for now. - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lgcc_p"); - else - CmdArgs.push_back("-lcompiler_rt"); - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-lstdc++"); - } else if (Args.hasArg(options::OPT_pg)) { - CmdArgs.push_back("-lgcc_eh_p"); - } else { - CmdArgs.push_back("--as-needed"); - CmdArgs.push_back("-lstdc++"); - CmdArgs.push_back("--no-as-needed"); - } - - if (Args.hasArg(options::OPT_pthread)) { - if (Args.hasArg(options::OPT_pg)) - CmdArgs.push_back("-lpthread_p"); - else - CmdArgs.push_back("-lpthread"); - } - - if (Args.hasArg(options::OPT_pg)) { - if (Args.hasArg(options::OPT_shared)) - CmdArgs.push_back("-lc"); - else { - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("--start-group"); - CmdArgs.push_back("-lc_p"); - CmdArgs.push_back("-lpthread_p"); - CmdArgs.push_back("--end-group"); - } else { - CmdArgs.push_back("-lc_p"); - } - } - CmdArgs.push_back("-lgcc_p"); - } else { - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("--start-group"); - CmdArgs.push_back("-lc"); - CmdArgs.push_back("-lpthread"); - CmdArgs.push_back("--end-group"); - } else { - CmdArgs.push_back("-lc"); - } - CmdArgs.push_back("-lcompiler_rt"); - } - - if (Args.hasArg(options::OPT_static)) { - CmdArgs.push_back("-lstdc++"); - } else if (Args.hasArg(options::OPT_pg)) { - CmdArgs.push_back("-lgcc_eh_p"); - } else { - CmdArgs.push_back("--as-needed"); - CmdArgs.push_back("-lstdc++"); - CmdArgs.push_back("--no-as-needed"); - } - } - - if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { - if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtendS.o"))); - else - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o"))); - CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); - } - - const char *Exec = -#ifdef LLVM_ON_WIN32 - Args.MakeArgString(ToolChain.GetProgramPath("orbis-ld.gold")); -#else - Args.MakeArgString(ToolChain.GetProgramPath("orbis-ld")); -#endif - - C.addCommand(llvm::make_unique<Command>(JA, T, Exec, CmdArgs, Inputs)); -} - -void PS4cpu::Link::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const toolchains::FreeBSD &ToolChain = - static_cast<const toolchains::FreeBSD &>(getToolChain()); - const Driver &D = ToolChain.getDriver(); - bool PS4Linker; - StringRef LinkerOptName; - if (const Arg *A = Args.getLastArg(options::OPT_fuse_ld_EQ)) { - LinkerOptName = A->getValue(); - if (LinkerOptName != "ps4" && LinkerOptName != "gold") - D.Diag(diag::err_drv_unsupported_linker) << LinkerOptName; - } - - if (LinkerOptName == "gold") - PS4Linker = false; - else if (LinkerOptName == "ps4") - PS4Linker = true; - else - PS4Linker = !Args.hasArg(options::OPT_shared); - - if (PS4Linker) - ConstructPS4LinkJob(*this, C, JA, Output, Inputs, Args, LinkingOutput); - else - ConstructGoldLinkJob(*this, C, JA, Output, Inputs, Args, LinkingOutput); -} - -void NVPTX::Assembler::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const auto &TC = - static_cast<const toolchains::CudaToolChain &>(getToolChain()); - assert(TC.getTriple().isNVPTX() && "Wrong platform"); - - // Obtain architecture from the action. - CudaArch gpu_arch = StringToCudaArch(JA.getOffloadingArch()); - assert(gpu_arch != CudaArch::UNKNOWN && - "Device action expected to have an architecture."); - - // Check that our installation's ptxas supports gpu_arch. - if (!Args.hasArg(options::OPT_no_cuda_version_check)) { - TC.CudaInstallation.CheckCudaVersionSupportsArch(gpu_arch); - } - - ArgStringList CmdArgs; - CmdArgs.push_back(TC.getTriple().isArch64Bit() ? "-m64" : "-m32"); - if (Args.hasFlag(options::OPT_cuda_noopt_device_debug, - options::OPT_no_cuda_noopt_device_debug, false)) { - // ptxas does not accept -g option if optimization is enabled, so - // we ignore the compiler's -O* options if we want debug info. - CmdArgs.push_back("-g"); - CmdArgs.push_back("--dont-merge-basicblocks"); - CmdArgs.push_back("--return-at-end"); - } else if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { - // Map the -O we received to -O{0,1,2,3}. - // - // TODO: Perhaps we should map host -O2 to ptxas -O3. -O3 is ptxas's - // default, so it may correspond more closely to the spirit of clang -O2. - - // -O3 seems like the least-bad option when -Osomething is specified to - // clang but it isn't handled below. - StringRef OOpt = "3"; - if (A->getOption().matches(options::OPT_O4) || - A->getOption().matches(options::OPT_Ofast)) - OOpt = "3"; - else if (A->getOption().matches(options::OPT_O0)) - OOpt = "0"; - else if (A->getOption().matches(options::OPT_O)) { - // -Os, -Oz, and -O(anything else) map to -O2, for lack of better options. - OOpt = llvm::StringSwitch<const char *>(A->getValue()) - .Case("1", "1") - .Case("2", "2") - .Case("3", "3") - .Case("s", "2") - .Case("z", "2") - .Default("2"); - } - CmdArgs.push_back(Args.MakeArgString(llvm::Twine("-O") + OOpt)); - } else { - // If no -O was passed, pass -O0 to ptxas -- no opt flag should correspond - // to no optimizations, but ptxas's default is -O3. - CmdArgs.push_back("-O0"); - } - - CmdArgs.push_back("--gpu-name"); - CmdArgs.push_back(Args.MakeArgString(CudaArchToString(gpu_arch))); - CmdArgs.push_back("--output-file"); - CmdArgs.push_back(Args.MakeArgString(Output.getFilename())); - for (const auto& II : Inputs) - CmdArgs.push_back(Args.MakeArgString(II.getFilename())); - - for (const auto& A : Args.getAllArgValues(options::OPT_Xcuda_ptxas)) - CmdArgs.push_back(Args.MakeArgString(A)); - - const char *Exec; - if (Arg *A = Args.getLastArg(options::OPT_ptxas_path_EQ)) - Exec = A->getValue(); - else - Exec = Args.MakeArgString(TC.GetProgramPath("ptxas")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -// All inputs to this linker must be from CudaDeviceActions, as we need to look -// at the Inputs' Actions in order to figure out which GPU architecture they -// correspond to. -void NVPTX::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - const auto &TC = - static_cast<const toolchains::CudaToolChain &>(getToolChain()); - assert(TC.getTriple().isNVPTX() && "Wrong platform"); - - ArgStringList CmdArgs; - CmdArgs.push_back("--cuda"); - CmdArgs.push_back(TC.getTriple().isArch64Bit() ? "-64" : "-32"); - CmdArgs.push_back(Args.MakeArgString("--create")); - CmdArgs.push_back(Args.MakeArgString(Output.getFilename())); - - for (const auto& II : Inputs) { - auto *A = II.getAction(); - assert(A->getInputs().size() == 1 && - "Device offload action is expected to have a single input"); - const char *gpu_arch_str = A->getOffloadingArch(); - assert(gpu_arch_str && - "Device action expected to have associated a GPU architecture!"); - CudaArch gpu_arch = StringToCudaArch(gpu_arch_str); - - // We need to pass an Arch of the form "sm_XX" for cubin files and - // "compute_XX" for ptx. - const char *Arch = - (II.getType() == types::TY_PP_Asm) - ? CudaVirtualArchToString(VirtualArchForCudaArch(gpu_arch)) - : gpu_arch_str; - CmdArgs.push_back(Args.MakeArgString(llvm::Twine("--image=profile=") + - Arch + ",file=" + II.getFilename())); - } - - for (const auto& A : Args.getAllArgValues(options::OPT_Xcuda_fatbinary)) - CmdArgs.push_back(Args.MakeArgString(A)); - - const char *Exec = Args.MakeArgString(TC.GetProgramPath("fatbinary")); - C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); -} - -void AVR::Linker::ConstructJob(Compilation &C, const JobAction &JA, - const InputInfo &Output, - const InputInfoList &Inputs, - const ArgList &Args, - const char *LinkingOutput) const { - - std::string Linker = getToolChain().GetProgramPath(getShortName()); - ArgStringList CmdArgs; - AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); - CmdArgs.push_back("-o"); - CmdArgs.push_back(Output.getFilename()); - C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Linker), - CmdArgs, Inputs)); -} -// AVR tools end. |