| //===--- Gnu.cpp - Gnu Tool and ToolChain Implementations -------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "Gnu.h" |
| #include "Arch/ARM.h" |
| #include "Arch/Mips.h" |
| #include "Arch/PPC.h" |
| #include "Arch/RISCV.h" |
| #include "Arch/Sparc.h" |
| #include "Arch/SystemZ.h" |
| #include "CommonArgs.h" |
| #include "Linux.h" |
| #include "clang/Config/config.h" // for GCC_INSTALL_PREFIX |
| #include "clang/Driver/Compilation.h" |
| #include "clang/Driver/Driver.h" |
| #include "clang/Driver/DriverDiagnostic.h" |
| #include "clang/Driver/Options.h" |
| #include "clang/Driver/Tool.h" |
| #include "clang/Driver/ToolChain.h" |
| #include "llvm/Option/ArgList.h" |
| #include "llvm/Support/CodeGen.h" |
| #include "llvm/Support/Path.h" |
| #include "llvm/Support/TargetParser.h" |
| #include "llvm/Support/VirtualFileSystem.h" |
| #include <system_error> |
| |
| using namespace clang::driver; |
| using namespace clang::driver::toolchains; |
| using namespace clang; |
| using namespace llvm::opt; |
| |
| using tools::addMultilibFlag; |
| using tools::addPathIfExists; |
| |
| static bool forwardToGCC(const Option &O) { |
| // LinkerInput options have been forwarded. Don't duplicate. |
| if (O.hasFlag(options::LinkerInput)) |
| return false; |
| return O.matches(options::OPT_Link_Group) || O.hasFlag(options::LinkOption); |
| } |
| |
| // Switch CPU names not recognized by GNU assembler to a close CPU that it does |
| // recognize, instead of a lower march from being picked in the absence of a cpu |
| // flag. |
| static void normalizeCPUNamesForAssembler(const ArgList &Args, |
| ArgStringList &CmdArgs) { |
| if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { |
| StringRef CPUArg(A->getValue()); |
| if (CPUArg.equals_insensitive("krait")) |
| CmdArgs.push_back("-mcpu=cortex-a15"); |
| else if (CPUArg.equals_insensitive("kryo")) |
| CmdArgs.push_back("-mcpu=cortex-a57"); |
| else |
| Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ); |
| } |
| } |
| |
| void tools::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(); |
| |
| 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: |
| case llvm::Triple::ppcle: |
| 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(clang::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(std::make_unique<Command>(JA, *this, |
| ResponseFileSupport::AtFileCurCP(), |
| Exec, CmdArgs, Inputs, Output)); |
| } |
| |
| void tools::gcc::Preprocessor::RenderExtraToolArgs( |
| const JobAction &JA, ArgStringList &CmdArgs) const { |
| CmdArgs.push_back("-E"); |
| } |
| |
| void tools::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 tools::gcc::Linker::RenderExtraToolArgs(const JobAction &JA, |
| ArgStringList &CmdArgs) const { |
| // The types are (hopefully) good enough. |
| } |
| |
| // On Arm the endianness of the output file is determined by the target and |
| // can be overridden by the pseudo-target flags '-mlittle-endian'/'-EL' and |
| // '-mbig-endian'/'-EB'. Unlike other targets the flag does not result in a |
| // normalized triple so we must handle the flag here. |
| static bool isArmBigEndian(const llvm::Triple &Triple, |
| const ArgList &Args) { |
| bool IsBigEndian = false; |
| switch (Triple.getArch()) { |
| case llvm::Triple::armeb: |
| case llvm::Triple::thumbeb: |
| IsBigEndian = true; |
| LLVM_FALLTHROUGH; |
| case llvm::Triple::arm: |
| case llvm::Triple::thumb: |
| if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian, |
| options::OPT_mbig_endian)) |
| IsBigEndian = !A->getOption().matches(options::OPT_mlittle_endian); |
| break; |
| default: |
| break; |
| } |
| return IsBigEndian; |
| } |
| |
| 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 "aarch64linuxb"; |
| case llvm::Triple::arm: |
| case llvm::Triple::thumb: |
| case llvm::Triple::armeb: |
| case llvm::Triple::thumbeb: |
| return isArmBigEndian(T, Args) ? "armelfb_linux_eabi" : "armelf_linux_eabi"; |
| case llvm::Triple::m68k: |
| return "m68kelf"; |
| case llvm::Triple::ppc: |
| if (T.isOSLinux()) |
| return "elf32ppclinux"; |
| return "elf32ppc"; |
| case llvm::Triple::ppcle: |
| if (T.isOSLinux()) |
| return "elf32lppclinux"; |
| return "elf32lppc"; |
| case llvm::Triple::ppc64: |
| return "elf64ppc"; |
| case llvm::Triple::ppc64le: |
| return "elf64lppc"; |
| case llvm::Triple::riscv32: |
| return "elf32lriscv"; |
| case llvm::Triple::riscv64: |
| return "elf64lriscv"; |
| 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 (tools::mips::hasMipsAbiArg(Args, "n32") || |
| T.getEnvironment() == llvm::Triple::GNUABIN32) |
| return "elf32btsmipn32"; |
| return "elf64btsmip"; |
| case llvm::Triple::mips64el: |
| if (tools::mips::hasMipsAbiArg(Args, "n32") || |
| T.getEnvironment() == llvm::Triple::GNUABIN32) |
| return "elf32ltsmipn32"; |
| return "elf64ltsmip"; |
| case llvm::Triple::systemz: |
| return "elf64_s390"; |
| case llvm::Triple::x86_64: |
| if (T.isX32()) |
| return "elf32_x86_64"; |
| return "elf_x86_64"; |
| case llvm::Triple::ve: |
| return "elf64ve"; |
| default: |
| return nullptr; |
| } |
| } |
| |
| static bool getPIE(const ArgList &Args, const ToolChain &TC) { |
| if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_static) || |
| Args.hasArg(options::OPT_r) || Args.hasArg(options::OPT_static_pie)) |
| return false; |
| |
| Arg *A = Args.getLastArg(options::OPT_pie, options::OPT_no_pie, |
| options::OPT_nopie); |
| if (!A) |
| return TC.isPIEDefault(Args); |
| return A->getOption().matches(options::OPT_pie); |
| } |
| |
| static bool getStaticPIE(const ArgList &Args, const ToolChain &TC) { |
| bool HasStaticPIE = Args.hasArg(options::OPT_static_pie); |
| // -no-pie is an alias for -nopie. So, handling -nopie takes care of |
| // -no-pie as well. |
| if (HasStaticPIE && Args.hasArg(options::OPT_nopie)) { |
| const Driver &D = TC.getDriver(); |
| const llvm::opt::OptTable &Opts = D.getOpts(); |
| const char *StaticPIEName = Opts.getOptionName(options::OPT_static_pie); |
| const char *NoPIEName = Opts.getOptionName(options::OPT_nopie); |
| D.Diag(diag::err_drv_cannot_mix_options) << StaticPIEName << NoPIEName; |
| } |
| return HasStaticPIE; |
| } |
| |
| static bool getStatic(const ArgList &Args) { |
| return Args.hasArg(options::OPT_static) && |
| !Args.hasArg(options::OPT_static_pie); |
| } |
| |
| void tools::gnutools::StaticLibTool::ConstructJob( |
| Compilation &C, const JobAction &JA, const InputInfo &Output, |
| const InputInfoList &Inputs, const ArgList &Args, |
| const char *LinkingOutput) const { |
| const Driver &D = getToolChain().getDriver(); |
| |
| // 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); |
| // Silence warnings when linking C code with a C++ '-stdlib' argument. |
| Args.ClaimAllArgs(options::OPT_stdlib_EQ); |
| |
| // ar tool command "llvm-ar <options> <output_file> <input_files>". |
| ArgStringList CmdArgs; |
| // Create and insert file members with a deterministic index. |
| CmdArgs.push_back("rcsD"); |
| CmdArgs.push_back(Output.getFilename()); |
| |
| for (const auto &II : Inputs) { |
| if (II.isFilename()) { |
| CmdArgs.push_back(II.getFilename()); |
| } |
| } |
| |
| // Delete old output archive file if it already exists before generating a new |
| // archive file. |
| auto OutputFileName = Output.getFilename(); |
| if (Output.isFilename() && llvm::sys::fs::exists(OutputFileName)) { |
| if (std::error_code EC = llvm::sys::fs::remove(OutputFileName)) { |
| D.Diag(diag::err_drv_unable_to_remove_file) << EC.message(); |
| return; |
| } |
| } |
| |
| const char *Exec = Args.MakeArgString(getToolChain().GetStaticLibToolPath()); |
| C.addCommand(std::make_unique<Command>(JA, *this, |
| ResponseFileSupport::AtFileCurCP(), |
| Exec, CmdArgs, Inputs, Output)); |
| } |
| |
| void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA, |
| const InputInfo &Output, |
| const InputInfoList &Inputs, |
| const ArgList &Args, |
| const char *LinkingOutput) const { |
| // FIXME: The Linker class constructor takes a ToolChain and not a |
| // Generic_ELF, so the static_cast might return a reference to a invalid |
| // instance (see PR45061). Ideally, the Linker constructor needs to take a |
| // Generic_ELF instead. |
| const toolchains::Generic_ELF &ToolChain = |
| static_cast<const toolchains::Generic_ELF &>(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 IsVE = ToolChain.getTriple().isVE(); |
| const bool IsPIE = getPIE(Args, ToolChain); |
| const bool IsStaticPIE = getStaticPIE(Args, ToolChain); |
| const bool IsStatic = getStatic(Args); |
| 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); |
| |
| if (!D.SysRoot.empty()) |
| CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); |
| |
| if (IsPIE) |
| CmdArgs.push_back("-pie"); |
| |
| if (IsStaticPIE) { |
| CmdArgs.push_back("-static"); |
| CmdArgs.push_back("-pie"); |
| CmdArgs.push_back("--no-dynamic-linker"); |
| CmdArgs.push_back("-z"); |
| CmdArgs.push_back("text"); |
| } |
| |
| if (Args.hasArg(options::OPT_rdynamic)) |
| CmdArgs.push_back("-export-dynamic"); |
| |
| if (Args.hasArg(options::OPT_s)) |
| CmdArgs.push_back("-s"); |
| |
| if (Triple.isARM() || Triple.isThumb() || Triple.isAArch64()) { |
| bool IsBigEndian = isArmBigEndian(Triple, Args); |
| if (IsBigEndian) |
| arm::appendBE8LinkFlag(Args, CmdArgs, Triple); |
| IsBigEndian = IsBigEndian || Arch == llvm::Triple::aarch64_be; |
| CmdArgs.push_back(IsBigEndian ? "-EB" : "-EL"); |
| } |
| |
| // 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(D, Args, Triple); |
| if (CPU.empty() || CPU == "generic" || CPU == "cortex-a53") |
| CmdArgs.push_back("--fix-cortex-a53-843419"); |
| } |
| |
| // Android does not allow shared text relocations. Emit a warning if the |
| // user's code contains any. |
| if (isAndroid) |
| CmdArgs.push_back("--warn-shared-textrel"); |
| |
| ToolChain.addExtraOpts(CmdArgs); |
| |
| 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_shared)) |
| CmdArgs.push_back("-shared"); |
| |
| if (IsStatic) { |
| CmdArgs.push_back("-static"); |
| } else { |
| if (Args.hasArg(options::OPT_rdynamic)) |
| CmdArgs.push_back("-export-dynamic"); |
| |
| if (!Args.hasArg(options::OPT_shared) && !IsStaticPIE) { |
| CmdArgs.push_back("-dynamic-linker"); |
| CmdArgs.push_back(Args.MakeArgString(Twine(D.DyldPrefix) + |
| ToolChain.getDynamicLinker(Args))); |
| } |
| } |
| |
| 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 if (IsStaticPIE) |
| crt1 = "rcrt1.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 (IsVE) { |
| CmdArgs.push_back("-z"); |
| CmdArgs.push_back("max-page-size=0x4000000"); |
| } |
| |
| if (IsIAMCU) |
| CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o"))); |
| else if (HasCRTBeginEndFiles) { |
| std::string P; |
| if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT && |
| !isAndroid) { |
| std::string crtbegin = ToolChain.getCompilerRT(Args, "crtbegin", |
| ToolChain::FT_Object); |
| if (ToolChain.getVFS().exists(crtbegin)) |
| P = crtbegin; |
| } |
| if (P.empty()) { |
| const char *crtbegin; |
| if (Args.hasArg(options::OPT_shared)) |
| crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o"; |
| else if (IsStatic) |
| crtbegin = isAndroid ? "crtbegin_static.o" : "crtbeginT.o"; |
| else if (IsPIE || IsStaticPIE) |
| crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o"; |
| else |
| crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o"; |
| P = ToolChain.GetFilePath(crtbegin); |
| } |
| CmdArgs.push_back(Args.MakeArgString(P)); |
| } |
| |
| // 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()) { |
| assert(!Inputs.empty() && "Must have at least one input."); |
| addLTOOptions(ToolChain, Args, CmdArgs, Output, Inputs[0], |
| D.getLTOMode() == LTOK_Thin); |
| } |
| |
| 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); |
| addLinkerCompressDebugSectionsOption(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)) { |
| if (ToolChain.ShouldLinkCXXStdlib(Args)) { |
| 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 (IsStatic || IsStaticPIE) |
| CmdArgs.push_back("--start-group"); |
| |
| if (NeedsSanitizerDeps) |
| linkSanitizerRuntimeDeps(ToolChain, CmdArgs); |
| |
| if (NeedsXRayDeps) |
| linkXRayRuntimeDeps(ToolChain, CmdArgs); |
| |
| bool WantPthread = Args.hasArg(options::OPT_pthread) || |
| Args.hasArg(options::OPT_pthreads); |
| |
| // Use the static OpenMP runtime with -static-openmp |
| bool StaticOpenMP = Args.hasArg(options::OPT_static_openmp) && |
| !Args.hasArg(options::OPT_static); |
| |
| // FIXME: Only pass GompNeedsRT = true for platforms with libgomp that |
| // require librt. Most modern Linux platforms do, but some may not. |
| if (addOpenMPRuntime(CmdArgs, ToolChain, Args, StaticOpenMP, |
| JA.isHostOffloading(Action::OFK_OpenMP), |
| /* GompNeedsRT= */ true)) |
| // OpenMP runtimes implies pthreads when using the GNU toolchain. |
| // FIXME: Does this really make sense for all GNU toolchains? |
| WantPthread = true; |
| |
| 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"); |
| |
| if (!Args.hasArg(options::OPT_nolibc)) |
| CmdArgs.push_back("-lc"); |
| |
| // Add IAMCU specific libs, if needed. |
| if (IsIAMCU) |
| CmdArgs.push_back("-lgloss"); |
| |
| if (IsStatic || IsStaticPIE) |
| 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) { |
| if (HasCRTBeginEndFiles) { |
| std::string P; |
| if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT && |
| !isAndroid) { |
| std::string crtend = ToolChain.getCompilerRT(Args, "crtend", |
| ToolChain::FT_Object); |
| if (ToolChain.getVFS().exists(crtend)) |
| P = crtend; |
| } |
| if (P.empty()) { |
| const char *crtend; |
| if (Args.hasArg(options::OPT_shared)) |
| crtend = isAndroid ? "crtend_so.o" : "crtendS.o"; |
| else if (IsPIE || IsStaticPIE) |
| crtend = isAndroid ? "crtend_android.o" : "crtendS.o"; |
| else |
| crtend = isAndroid ? "crtend_android.o" : "crtend.o"; |
| P = ToolChain.GetFilePath(crtend); |
| } |
| CmdArgs.push_back(Args.MakeArgString(P)); |
| } |
| if (!isAndroid) |
| CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); |
| } |
| } |
| |
| Args.AddAllArgs(CmdArgs, options::OPT_T); |
| |
| const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); |
| C.addCommand(std::make_unique<Command>(JA, *this, |
| ResponseFileSupport::AtFileCurCP(), |
| Exec, CmdArgs, Inputs, Output)); |
| } |
| |
| void tools::gnutools::Assembler::ConstructJob(Compilation &C, |
| const JobAction &JA, |
| const InputInfo &Output, |
| const InputInfoList &Inputs, |
| const ArgList &Args, |
| const char *LinkingOutput) const { |
| const auto &D = getToolChain().getDriver(); |
| |
| claimNoWarnArgs(Args); |
| |
| ArgStringList CmdArgs; |
| |
| llvm::Reloc::Model RelocationModel; |
| unsigned PICLevel; |
| bool IsPIE; |
| const char *DefaultAssembler = "as"; |
| std::tie(RelocationModel, PICLevel, IsPIE) = |
| ParsePICArgs(getToolChain(), Args); |
| |
| if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) { |
| if (A->getOption().getID() == options::OPT_gz) { |
| CmdArgs.push_back("--compress-debug-sections"); |
| } else { |
| StringRef Value = A->getValue(); |
| if (Value == "none" || Value == "zlib" || Value == "zlib-gnu") { |
| CmdArgs.push_back( |
| Args.MakeArgString("--compress-debug-sections=" + Twine(Value))); |
| } else { |
| D.Diag(diag::err_drv_unsupported_option_argument) |
| << A->getOption().getName() << Value; |
| } |
| } |
| } |
| |
| 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().isX32()) |
| 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("-mbig-endian"); |
| CmdArgs.push_back(ppc::getPPCAsmModeForCPU( |
| getCPUName(D, Args, getToolChain().getTriple()))); |
| break; |
| } |
| case llvm::Triple::ppcle: { |
| CmdArgs.push_back("-a32"); |
| CmdArgs.push_back("-mppc"); |
| CmdArgs.push_back("-mlittle-endian"); |
| CmdArgs.push_back(ppc::getPPCAsmModeForCPU( |
| getCPUName(D, Args, getToolChain().getTriple()))); |
| break; |
| } |
| case llvm::Triple::ppc64: { |
| CmdArgs.push_back("-a64"); |
| CmdArgs.push_back("-mppc64"); |
| CmdArgs.push_back("-mbig-endian"); |
| CmdArgs.push_back(ppc::getPPCAsmModeForCPU( |
| getCPUName(D, Args, getToolChain().getTriple()))); |
| break; |
| } |
| case llvm::Triple::ppc64le: { |
| CmdArgs.push_back("-a64"); |
| CmdArgs.push_back("-mppc64"); |
| CmdArgs.push_back("-mlittle-endian"); |
| CmdArgs.push_back(ppc::getPPCAsmModeForCPU( |
| getCPUName(D, Args, getToolChain().getTriple()))); |
| break; |
| } |
| case llvm::Triple::riscv32: |
| case llvm::Triple::riscv64: { |
| StringRef ABIName = riscv::getRISCVABI(Args, getToolChain().getTriple()); |
| CmdArgs.push_back("-mabi"); |
| CmdArgs.push_back(ABIName.data()); |
| StringRef MArchName = riscv::getRISCVArch(Args, getToolChain().getTriple()); |
| CmdArgs.push_back("-march"); |
| CmdArgs.push_back(MArchName.data()); |
| break; |
| } |
| case llvm::Triple::sparc: |
| case llvm::Triple::sparcel: { |
| CmdArgs.push_back("-32"); |
| std::string CPU = getCPUName(D, Args, getToolChain().getTriple()); |
| CmdArgs.push_back( |
| sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); |
| AddAssemblerKPIC(getToolChain(), Args, CmdArgs); |
| break; |
| } |
| case llvm::Triple::sparcv9: { |
| CmdArgs.push_back("-64"); |
| std::string CPU = getCPUName(D, Args, getToolChain().getTriple()); |
| CmdArgs.push_back( |
| sparc::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(); |
| CmdArgs.push_back(isArmBigEndian(Triple2, Args) ? "-EB" : "-EL"); |
| 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); |
| normalizeCPUNamesForAssembler(Args, CmdArgs); |
| |
| Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ); |
| break; |
| } |
| case llvm::Triple::aarch64: |
| case llvm::Triple::aarch64_be: { |
| CmdArgs.push_back( |
| getToolChain().getArch() == llvm::Triple::aarch64_be ? "-EB" : "-EL"); |
| Args.AddLastArg(CmdArgs, options::OPT_march_EQ); |
| normalizeCPUNamesForAssembler(Args, CmdArgs); |
| |
| 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 = mips::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. |
| if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls)) |
| CmdArgs.push_back("-call_nonpic"); |
| |
| if (getToolChain().getTriple().isLittleEndian()) |
| CmdArgs.push_back("-EL"); |
| else |
| CmdArgs.push_back("-EB"); |
| |
| 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, |
| mips::getMipsFloatABI(getToolChain().getDriver(), Args, |
| getToolChain().getTriple()))) |
| 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. |
| std::string CPUName = systemz::getSystemZTargetCPU(Args); |
| CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName)); |
| break; |
| } |
| case llvm::Triple::ve: |
| DefaultAssembler = "nas"; |
| } |
| |
| for (const Arg *A : Args.filtered(options::OPT_ffile_prefix_map_EQ, |
| options::OPT_fdebug_prefix_map_EQ)) { |
| StringRef Map = A->getValue(); |
| if (!Map.contains('=')) |
| D.Diag(diag::err_drv_invalid_argument_to_option) |
| << Map << A->getOption().getName(); |
| else { |
| CmdArgs.push_back(Args.MakeArgString("--debug-prefix-map")); |
| CmdArgs.push_back(Args.MakeArgString(Map)); |
| } |
| A->claim(); |
| } |
| |
| 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(DefaultAssembler)); |
| C.addCommand(std::make_unique<Command>(JA, *this, |
| ResponseFileSupport::AtFileCurCP(), |
| Exec, CmdArgs, Inputs, Output)); |
| |
| // 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(JA, Args, Inputs[0], Output)); |
| } |
| |
| namespace { |
| // Filter to remove Multilibs that don't exist as a suffix to Path |
| class FilterNonExistent { |
| StringRef Base, File; |
| llvm::vfs::FileSystem &VFS; |
| |
| public: |
| FilterNonExistent(StringRef Base, StringRef File, llvm::vfs::FileSystem &VFS) |
| : Base(Base), File(File), VFS(VFS) {} |
| bool operator()(const Multilib &M) { |
| return !VFS.exists(Base + M.gccSuffix() + File); |
| } |
| }; |
| } // end anonymous namespace |
| |
| static bool isSoftFloatABI(const ArgList &Args) { |
| Arg *A = Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float, |
| options::OPT_mfloat_abi_EQ); |
| if (!A) |
| return false; |
| |
| return A->getOption().matches(options::OPT_msoft_float) || |
| (A->getOption().matches(options::OPT_mfloat_abi_EQ) && |
| A->getValue() == StringRef("soft")); |
| } |
| |
| static bool isArmOrThumbArch(llvm::Triple::ArchType Arch) { |
| return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb; |
| } |
| |
| static bool isMipsEL(llvm::Triple::ArchType Arch) { |
| return Arch == llvm::Triple::mipsel || Arch == llvm::Triple::mips64el; |
| } |
| |
| static bool isMips16(const ArgList &Args) { |
| Arg *A = Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16); |
| return A && A->getOption().matches(options::OPT_mips16); |
| } |
| |
| static bool isMicroMips(const ArgList &Args) { |
| Arg *A = Args.getLastArg(options::OPT_mmicromips, options::OPT_mno_micromips); |
| return A && A->getOption().matches(options::OPT_mmicromips); |
| } |
| |
| static bool isMSP430(llvm::Triple::ArchType Arch) { |
| return Arch == llvm::Triple::msp430; |
| } |
| |
| static Multilib makeMultilib(StringRef commonSuffix) { |
| return Multilib(commonSuffix, commonSuffix, commonSuffix); |
| } |
| |
| static bool findMipsCsMultilibs(const Multilib::flags_list &Flags, |
| FilterNonExistent &NonExistent, |
| DetectedMultilibs &Result) { |
| // Check for Code Sourcery toolchain multilibs |
| MultilibSet CSMipsMultilibs; |
| { |
| auto MArchMips16 = makeMultilib("/mips16").flag("+m32").flag("+mips16"); |
| |
| auto MArchMicroMips = |
| makeMultilib("/micromips").flag("+m32").flag("+mmicromips"); |
| |
| auto MArchDefault = makeMultilib("").flag("-mips16").flag("-mmicromips"); |
| |
| auto UCLibc = makeMultilib("/uclibc").flag("+muclibc"); |
| |
| auto SoftFloat = makeMultilib("/soft-float").flag("+msoft-float"); |
| |
| auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008"); |
| |
| auto DefaultFloat = |
| makeMultilib("").flag("-msoft-float").flag("-mnan=2008"); |
| |
| auto BigEndian = makeMultilib("").flag("+EB").flag("-EL"); |
| |
| auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB"); |
| |
| // Note that this one's osSuffix is "" |
| auto MAbi64 = makeMultilib("") |
| .gccSuffix("/64") |
| .includeSuffix("/64") |
| .flag("+mabi=n64") |
| .flag("-mabi=n32") |
| .flag("-m32"); |
| |
| CSMipsMultilibs = |
| MultilibSet() |
| .Either(MArchMips16, MArchMicroMips, MArchDefault) |
| .Maybe(UCLibc) |
| .Either(SoftFloat, Nan2008, DefaultFloat) |
| .FilterOut("/micromips/nan2008") |
| .FilterOut("/mips16/nan2008") |
| .Either(BigEndian, LittleEndian) |
| .Maybe(MAbi64) |
| .FilterOut("/mips16.*/64") |
| .FilterOut("/micromips.*/64") |
| .FilterOut(NonExistent) |
| .setIncludeDirsCallback([](const Multilib &M) { |
| std::vector<std::string> Dirs({"/include"}); |
| if (StringRef(M.includeSuffix()).startswith("/uclibc")) |
| Dirs.push_back( |
| "/../../../../mips-linux-gnu/libc/uclibc/usr/include"); |
| else |
| Dirs.push_back("/../../../../mips-linux-gnu/libc/usr/include"); |
| return Dirs; |
| }); |
| } |
| |
| MultilibSet DebianMipsMultilibs; |
| { |
| Multilib MAbiN32 = |
| Multilib().gccSuffix("/n32").includeSuffix("/n32").flag("+mabi=n32"); |
| |
| Multilib M64 = Multilib() |
| .gccSuffix("/64") |
| .includeSuffix("/64") |
| .flag("+m64") |
| .flag("-m32") |
| .flag("-mabi=n32"); |
| |
| Multilib M32 = |
| Multilib().gccSuffix("/32").flag("-m64").flag("+m32").flag("-mabi=n32"); |
| |
| DebianMipsMultilibs = |
| MultilibSet().Either(M32, M64, MAbiN32).FilterOut(NonExistent); |
| } |
| |
| // Sort candidates. Toolchain that best meets the directories tree goes first. |
| // Then select the first toolchains matches command line flags. |
| MultilibSet *Candidates[] = {&CSMipsMultilibs, &DebianMipsMultilibs}; |
| if (CSMipsMultilibs.size() < DebianMipsMultilibs.size()) |
| std::iter_swap(Candidates, Candidates + 1); |
| for (const MultilibSet *Candidate : Candidates) { |
| if (Candidate->select(Flags, Result.SelectedMultilib)) { |
| if (Candidate == &DebianMipsMultilibs) |
| Result.BiarchSibling = Multilib(); |
| Result.Multilibs = *Candidate; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| static bool findMipsAndroidMultilibs(llvm::vfs::FileSystem &VFS, StringRef Path, |
| const Multilib::flags_list &Flags, |
| FilterNonExistent &NonExistent, |
| DetectedMultilibs &Result) { |
| |
| MultilibSet AndroidMipsMultilibs = |
| MultilibSet() |
| .Maybe(Multilib("/mips-r2").flag("+march=mips32r2")) |
| .Maybe(Multilib("/mips-r6").flag("+march=mips32r6")) |
| .FilterOut(NonExistent); |
| |
| MultilibSet AndroidMipselMultilibs = |
| MultilibSet() |
| .Either(Multilib().flag("+march=mips32"), |
| Multilib("/mips-r2", "", "/mips-r2").flag("+march=mips32r2"), |
| Multilib("/mips-r6", "", "/mips-r6").flag("+march=mips32r6")) |
| .FilterOut(NonExistent); |
| |
| MultilibSet AndroidMips64elMultilibs = |
| MultilibSet() |
| .Either( |
| Multilib().flag("+march=mips64r6"), |
| Multilib("/32/mips-r1", "", "/mips-r1").flag("+march=mips32"), |
| Multilib("/32/mips-r2", "", "/mips-r2").flag("+march=mips32r2"), |
| Multilib("/32/mips-r6", "", "/mips-r6").flag("+march=mips32r6")) |
| .FilterOut(NonExistent); |
| |
| MultilibSet *MS = &AndroidMipsMultilibs; |
| if (VFS.exists(Path + "/mips-r6")) |
| MS = &AndroidMipselMultilibs; |
| else if (VFS.exists(Path + "/32")) |
| MS = &AndroidMips64elMultilibs; |
| if (MS->select(Flags, Result.SelectedMultilib)) { |
| Result.Multilibs = *MS; |
| return true; |
| } |
| return false; |
| } |
| |
| static bool findMipsMuslMultilibs(const Multilib::flags_list &Flags, |
| FilterNonExistent &NonExistent, |
| DetectedMultilibs &Result) { |
| // Musl toolchain multilibs |
| MultilibSet MuslMipsMultilibs; |
| { |
| auto MArchMipsR2 = makeMultilib("") |
| .osSuffix("/mips-r2-hard-musl") |
| .flag("+EB") |
| .flag("-EL") |
| .flag("+march=mips32r2"); |
| |
| auto MArchMipselR2 = makeMultilib("/mipsel-r2-hard-musl") |
| .flag("-EB") |
| .flag("+EL") |
| .flag("+march=mips32r2"); |
| |
| MuslMipsMultilibs = MultilibSet().Either(MArchMipsR2, MArchMipselR2); |
| |
| // Specify the callback that computes the include directories. |
| MuslMipsMultilibs.setIncludeDirsCallback([](const Multilib &M) { |
| return std::vector<std::string>( |
| {"/../sysroot" + M.osSuffix() + "/usr/include"}); |
| }); |
| } |
| if (MuslMipsMultilibs.select(Flags, Result.SelectedMultilib)) { |
| Result.Multilibs = MuslMipsMultilibs; |
| return true; |
| } |
| return false; |
| } |
| |
| static bool findMipsMtiMultilibs(const Multilib::flags_list &Flags, |
| FilterNonExistent &NonExistent, |
| DetectedMultilibs &Result) { |
| // CodeScape MTI toolchain v1.2 and early. |
| MultilibSet MtiMipsMultilibsV1; |
| { |
| auto MArchMips32 = makeMultilib("/mips32") |
| .flag("+m32") |
| .flag("-m64") |
| .flag("-mmicromips") |
| .flag("+march=mips32"); |
| |
| auto MArchMicroMips = makeMultilib("/micromips") |
| .flag("+m32") |
| .flag("-m64") |
| .flag("+mmicromips"); |
| |
| auto MArchMips64r2 = makeMultilib("/mips64r2") |
| .flag("-m32") |
| .flag("+m64") |
| .flag("+march=mips64r2"); |
| |
| auto MArchMips64 = makeMultilib("/mips64").flag("-m32").flag("+m64").flag( |
| "-march=mips64r2"); |
| |
| auto MArchDefault = makeMultilib("") |
| .flag("+m32") |
| .flag("-m64") |
| .flag("-mmicromips") |
| .flag("+march=mips32r2"); |
| |
| auto Mips16 = makeMultilib("/mips16").flag("+mips16"); |
| |
| auto UCLibc = makeMultilib("/uclibc").flag("+muclibc"); |
| |
| auto MAbi64 = |
| makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32"); |
| |
| auto BigEndian = makeMultilib("").flag("+EB").flag("-EL"); |
| |
| auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB"); |
| |
| auto SoftFloat = makeMultilib("/sof").flag("+msoft-float"); |
| |
| auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008"); |
| |
| MtiMipsMultilibsV1 = |
| MultilibSet() |
| .Either(MArchMips32, MArchMicroMips, MArchMips64r2, MArchMips64, |
| MArchDefault) |
| .Maybe(UCLibc) |
| .Maybe(Mips16) |
| .FilterOut("/mips64/mips16") |
| .FilterOut("/mips64r2/mips16") |
| .FilterOut("/micromips/mips16") |
| .Maybe(MAbi64) |
| .FilterOut("/micromips/64") |
| .FilterOut("/mips32/64") |
| .FilterOut("^/64") |
| .FilterOut("/mips16/64") |
| .Either(BigEndian, LittleEndian) |
| .Maybe(SoftFloat) |
| .Maybe(Nan2008) |
| .FilterOut(".*sof/nan2008") |
| .FilterOut(NonExistent) |
| .setIncludeDirsCallback([](const Multilib &M) { |
| std::vector<std::string> Dirs({"/include"}); |
| if (StringRef(M.includeSuffix()).startswith("/uclibc")) |
| Dirs.push_back("/../../../../sysroot/uclibc/usr/include"); |
| else |
| Dirs.push_back("/../../../../sysroot/usr/include"); |
| return Dirs; |
| }); |
| } |
| |
| // CodeScape IMG toolchain starting from v1.3. |
| MultilibSet MtiMipsMultilibsV2; |
| { |
| auto BeHard = makeMultilib("/mips-r2-hard") |
| .flag("+EB") |
| .flag("-msoft-float") |
| .flag("-mnan=2008") |
| .flag("-muclibc"); |
| auto BeSoft = makeMultilib("/mips-r2-soft") |
| .flag("+EB") |
| .flag("+msoft-float") |
| .flag("-mnan=2008"); |
| auto ElHard = makeMultilib("/mipsel-r2-hard") |
| .flag("+EL") |
| .flag("-msoft-float") |
| .flag("-mnan=2008") |
| .flag("-muclibc"); |
| auto ElSoft = makeMultilib("/mipsel-r2-soft") |
| .flag("+EL") |
| .flag("+msoft-float") |
| .flag("-mnan=2008") |
| .flag("-mmicromips"); |
| auto BeHardNan = makeMultilib("/mips-r2-hard-nan2008") |
| .flag("+EB") |
| .flag("-msoft-float") |
| .flag("+mnan=2008") |
| .flag("-muclibc"); |
| auto ElHardNan = makeMultilib("/mipsel-r2-hard-nan2008") |
| .flag("+EL") |
| .flag("-msoft-float") |
| .flag("+mnan=2008") |
| .flag("-muclibc") |
| .flag("-mmicromips"); |
| auto BeHardNanUclibc = makeMultilib("/mips-r2-hard-nan2008-uclibc") |
| .flag("+EB") |
| .flag("-msoft-float") |
| .flag("+mnan=2008") |
| .flag("+muclibc"); |
| auto ElHardNanUclibc = makeMultilib("/mipsel-r2-hard-nan2008-uclibc") |
| .flag("+EL") |
| .flag("-msoft-float") |
| .flag("+mnan=2008") |
| .flag("+muclibc"); |
| auto BeHardUclibc = makeMultilib("/mips-r2-hard-uclibc") |
| .flag("+EB") |
| .flag("-msoft-float") |
| .flag("-mnan=2008") |
| .flag("+muclibc"); |
| auto ElHardUclibc = makeMultilib("/mipsel-r2-hard-uclibc") |
| .flag("+EL") |
| .flag("-msoft-float") |
| .flag("-mnan=2008") |
| .flag("+muclibc"); |
| auto ElMicroHardNan = makeMultilib("/micromipsel-r2-hard-nan2008") |
| .flag("+EL") |
| .flag("-msoft-float") |
| .flag("+mnan=2008") |
| .flag("+mmicromips"); |
| auto ElMicroSoft = makeMultilib("/micromipsel-r2-soft") |
| .flag("+EL") |
| .flag("+msoft-float") |
| .flag("-mnan=2008") |
| .flag("+mmicromips"); |
| |
| auto O32 = |
| makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64"); |
| auto N32 = |
| makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64"); |
| auto N64 = |
| makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64"); |
| |
| MtiMipsMultilibsV2 = |
| MultilibSet() |
| .Either({BeHard, BeSoft, ElHard, ElSoft, BeHardNan, ElHardNan, |
| BeHardNanUclibc, ElHardNanUclibc, BeHardUclibc, |
| ElHardUclibc, ElMicroHardNan, ElMicroSoft}) |
| .Either(O32, N32, N64) |
| .FilterOut(NonExistent) |
| .setIncludeDirsCallback([](const Multilib &M) { |
| return std::vector<std::string>({"/../../../../sysroot" + |
| M.includeSuffix() + |
| "/../usr/include"}); |
| }) |
| .setFilePathsCallback([](const Multilib &M) { |
| return std::vector<std::string>( |
| {"/../../../../mips-mti-linux-gnu/lib" + M.gccSuffix()}); |
| }); |
| } |
| for (auto Candidate : {&MtiMipsMultilibsV1, &MtiMipsMultilibsV2}) { |
| if (Candidate->select(Flags, Result.SelectedMultilib)) { |
| Result.Multilibs = *Candidate; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| static bool findMipsImgMultilibs(const Multilib::flags_list &Flags, |
| FilterNonExistent &NonExistent, |
| DetectedMultilibs &Result) { |
| // CodeScape IMG toolchain v1.2 and early. |
| MultilibSet ImgMultilibsV1; |
| { |
| auto Mips64r6 = makeMultilib("/mips64r6").flag("+m64").flag("-m32"); |
| |
| auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB"); |
| |
| auto MAbi64 = |
| makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32"); |
| |
| ImgMultilibsV1 = |
| MultilibSet() |
| .Maybe(Mips64r6) |
| .Maybe(MAbi64) |
| .Maybe(LittleEndian) |
| .FilterOut(NonExistent) |
| .setIncludeDirsCallback([](const Multilib &M) { |
| return std::vector<std::string>( |
| {"/include", "/../../../../sysroot/usr/include"}); |
| }); |
| } |
| |
| // CodeScape IMG toolchain starting from v1.3. |
| MultilibSet ImgMultilibsV2; |
| { |
| auto BeHard = makeMultilib("/mips-r6-hard") |
| .flag("+EB") |
| .flag("-msoft-float") |
| .flag("-mmicromips"); |
| auto BeSoft = makeMultilib("/mips-r6-soft") |
| .flag("+EB") |
| .flag("+msoft-float") |
| .flag("-mmicromips"); |
| auto ElHard = makeMultilib("/mipsel-r6-hard") |
| .flag("+EL") |
| .flag("-msoft-float") |
| .flag("-mmicromips"); |
| auto ElSoft = makeMultilib("/mipsel-r6-soft") |
| .flag("+EL") |
| .flag("+msoft-float") |
| .flag("-mmicromips"); |
| auto BeMicroHard = makeMultilib("/micromips-r6-hard") |
| .flag("+EB") |
| .flag("-msoft-float") |
| .flag("+mmicromips"); |
| auto BeMicroSoft = makeMultilib("/micromips-r6-soft") |
| .flag("+EB") |
| .flag("+msoft-float") |
| .flag("+mmicromips"); |
| auto ElMicroHard = makeMultilib("/micromipsel-r6-hard") |
| .flag("+EL") |
| .flag("-msoft-float") |
| .flag("+mmicromips"); |
| auto ElMicroSoft = makeMultilib("/micromipsel-r6-soft") |
| .flag("+EL") |
| .flag("+msoft-float") |
| .flag("+mmicromips"); |
| |
| auto O32 = |
| makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64"); |
| auto N32 = |
| makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64"); |
| auto N64 = |
| makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64"); |
| |
| ImgMultilibsV2 = |
| MultilibSet() |
| .Either({BeHard, BeSoft, ElHard, ElSoft, BeMicroHard, BeMicroSoft, |
| ElMicroHard, ElMicroSoft}) |
| .Either(O32, N32, N64) |
| .FilterOut(NonExistent) |
| .setIncludeDirsCallback([](const Multilib &M) { |
| return std::vector<std::string>({"/../../../../sysroot" + |
| M.includeSuffix() + |
| "/../usr/include"}); |
| }) |
| .setFilePathsCallback([](const Multilib &M) { |
| return std::vector<std::string>( |
| {"/../../../../mips-img-linux-gnu/lib" + M.gccSuffix()}); |
| }); |
| } |
| for (auto Candidate : {&ImgMultilibsV1, &ImgMultilibsV2}) { |
| if (Candidate->select(Flags, Result.SelectedMultilib)) { |
| Result.Multilibs = *Candidate; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool clang::driver::findMIPSMultilibs(const Driver &D, |
| const llvm::Triple &TargetTriple, |
| StringRef Path, const ArgList &Args, |
| DetectedMultilibs &Result) { |
| FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS()); |
| |
| StringRef CPUName; |
| StringRef ABIName; |
| tools::mips::getMipsCPUAndABI(Args, TargetTriple, CPUName, ABIName); |
| |
| llvm::Triple::ArchType TargetArch = TargetTriple.getArch(); |
| |
| Multilib::flags_list Flags; |
| addMultilibFlag(TargetTriple.isMIPS32(), "m32", Flags); |
| addMultilibFlag(TargetTriple.isMIPS64(), "m64", Flags); |
| addMultilibFlag(isMips16(Args), "mips16", Flags); |
| addMultilibFlag(CPUName == "mips32", "march=mips32", Flags); |
| addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" || |
| CPUName == "mips32r5" || CPUName == "p5600", |
| "march=mips32r2", Flags); |
| addMultilibFlag(CPUName == "mips32r6", "march=mips32r6", Flags); |
| addMultilibFlag(CPUName == "mips64", "march=mips64", Flags); |
| addMultilibFlag(CPUName == "mips64r2" || CPUName == "mips64r3" || |
| CPUName == "mips64r5" || CPUName == "octeon" || |
| CPUName == "octeon+", |
| "march=mips64r2", Flags); |
| addMultilibFlag(CPUName == "mips64r6", "march=mips64r6", Flags); |
| addMultilibFlag(isMicroMips(Args), "mmicromips", Flags); |
| addMultilibFlag(tools::mips::isUCLibc(Args), "muclibc", Flags); |
| addMultilibFlag(tools::mips::isNaN2008(D, Args, TargetTriple), "mnan=2008", |
| Flags); |
| addMultilibFlag(ABIName == "n32", "mabi=n32", Flags); |
| addMultilibFlag(ABIName == "n64", "mabi=n64", Flags); |
| addMultilibFlag(isSoftFloatABI(Args), "msoft-float", Flags); |
| addMultilibFlag(!isSoftFloatABI(Args), "mhard-float", Flags); |
| addMultilibFlag(isMipsEL(TargetArch), "EL", Flags); |
| addMultilibFlag(!isMipsEL(TargetArch), "EB", Flags); |
| |
| if (TargetTriple.isAndroid()) |
| return findMipsAndroidMultilibs(D.getVFS(), Path, Flags, NonExistent, |
| Result); |
| |
| if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies && |
| TargetTriple.getOS() == llvm::Triple::Linux && |
| TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment) |
| return findMipsMuslMultilibs(Flags, NonExistent, Result); |
| |
| if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies && |
| TargetTriple.getOS() == llvm::Triple::Linux && |
| TargetTriple.isGNUEnvironment()) |
| return findMipsMtiMultilibs(Flags, NonExistent, Result); |
| |
| if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies && |
| TargetTriple.getOS() == llvm::Triple::Linux && |
| TargetTriple.isGNUEnvironment()) |
| return findMipsImgMultilibs(Flags, NonExistent, Result); |
| |
| if (findMipsCsMultilibs(Flags, NonExistent, Result)) |
| return true; |
| |
| // Fallback to the regular toolchain-tree structure. |
| Multilib Default; |
| Result.Multilibs.push_back(Default); |
| Result.Multilibs.FilterOut(NonExistent); |
| |
| if (Result.Multilibs.select(Flags, Result.SelectedMultilib)) { |
| Result.BiarchSibling = Multilib(); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static void findAndroidArmMultilibs(const Driver &D, |
| const llvm::Triple &TargetTriple, |
| StringRef Path, const ArgList &Args, |
| DetectedMultilibs &Result) { |
| // Find multilibs with subdirectories like armv7-a, thumb, armv7-a/thumb. |
| FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS()); |
| Multilib ArmV7Multilib = makeMultilib("/armv7-a") |
| .flag("+march=armv7-a") |
| .flag("-mthumb"); |
| Multilib ThumbMultilib = makeMultilib("/thumb") |
| .flag("-march=armv7-a") |
| .flag("+mthumb"); |
| Multilib ArmV7ThumbMultilib = makeMultilib("/armv7-a/thumb") |
| .flag("+march=armv7-a") |
| .flag("+mthumb"); |
| Multilib DefaultMultilib = makeMultilib("") |
| .flag("-march=armv7-a") |
| .flag("-mthumb"); |
| MultilibSet AndroidArmMultilibs = |
| MultilibSet() |
| .Either(ThumbMultilib, ArmV7Multilib, |
| ArmV7ThumbMultilib, DefaultMultilib) |
| .FilterOut(NonExistent); |
| |
| Multilib::flags_list Flags; |
| llvm::StringRef Arch = Args.getLastArgValue(options::OPT_march_EQ); |
| bool IsArmArch = TargetTriple.getArch() == llvm::Triple::arm; |
| bool IsThumbArch = TargetTriple.getArch() == llvm::Triple::thumb; |
| bool IsV7SubArch = TargetTriple.getSubArch() == llvm::Triple::ARMSubArch_v7; |
| bool IsThumbMode = IsThumbArch || |
| Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, false) || |
| (IsArmArch && llvm::ARM::parseArchISA(Arch) == llvm::ARM::ISAKind::THUMB); |
| bool IsArmV7Mode = (IsArmArch || IsThumbArch) && |
| (llvm::ARM::parseArchVersion(Arch) == 7 || |
| (IsArmArch && Arch == "" && IsV7SubArch)); |
| addMultilibFlag(IsArmV7Mode, "march=armv7-a", Flags); |
| addMultilibFlag(IsThumbMode, "mthumb", Flags); |
| |
| if (AndroidArmMultilibs.select(Flags, Result.SelectedMultilib)) |
| Result.Multilibs = AndroidArmMultilibs; |
| } |
| |
| static bool findMSP430Multilibs(const Driver &D, |
| const llvm::Triple &TargetTriple, |
| StringRef Path, const ArgList &Args, |
| DetectedMultilibs &Result) { |
| FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS()); |
| Multilib WithoutExceptions = makeMultilib("/430").flag("-exceptions"); |
| Multilib WithExceptions = makeMultilib("/430/exceptions").flag("+exceptions"); |
| |
| // FIXME: when clang starts to support msp430x ISA additional logic |
| // to select between multilib must be implemented |
| // Multilib MSP430xMultilib = makeMultilib("/large"); |
| |
| Result.Multilibs.push_back(WithoutExceptions); |
| Result.Multilibs.push_back(WithExceptions); |
| Result.Multilibs.FilterOut(NonExistent); |
| |
| Multilib::flags_list Flags; |
| addMultilibFlag(Args.hasFlag(options::OPT_fexceptions, |
| options::OPT_fno_exceptions, false), |
| "exceptions", Flags); |
| if (Result.Multilibs.select(Flags, Result.SelectedMultilib)) |
| return true; |
| |
| return false; |
| } |
| |
| static void findRISCVBareMetalMultilibs(const Driver &D, |
| const llvm::Triple &TargetTriple, |
| StringRef Path, const ArgList &Args, |
| DetectedMultilibs &Result) { |
| FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS()); |
| struct RiscvMultilib { |
| StringRef march; |
| StringRef mabi; |
| }; |
| // currently only support the set of multilibs like riscv-gnu-toolchain does. |
| // TODO: support MULTILIB_REUSE |
| constexpr RiscvMultilib RISCVMultilibSet[] = { |
| {"rv32i", "ilp32"}, {"rv32im", "ilp32"}, {"rv32iac", "ilp32"}, |
| {"rv32imac", "ilp32"}, {"rv32imafc", "ilp32f"}, {"rv64imac", "lp64"}, |
| {"rv64imafdc", "lp64d"}}; |
| |
| std::vector<Multilib> Ms; |
| for (auto Element : RISCVMultilibSet) { |
| // multilib path rule is ${march}/${mabi} |
| Ms.emplace_back( |
| makeMultilib((Twine(Element.march) + "/" + Twine(Element.mabi)).str()) |
| .flag(Twine("+march=", Element.march).str()) |
| .flag(Twine("+mabi=", Element.mabi).str())); |
| } |
| MultilibSet RISCVMultilibs = |
| MultilibSet() |
| .Either(ArrayRef<Multilib>(Ms)) |
| .FilterOut(NonExistent) |
| .setFilePathsCallback([](const Multilib &M) { |
| return std::vector<std::string>( |
| {M.gccSuffix(), |
| "/../../../../riscv64-unknown-elf/lib" + M.gccSuffix(), |
| "/../../../../riscv32-unknown-elf/lib" + M.gccSuffix()}); |
| }); |
| |
| |
| Multilib::flags_list Flags; |
| llvm::StringSet<> Added_ABIs; |
| StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple); |
| StringRef MArch = tools::riscv::getRISCVArch(Args, TargetTriple); |
| for (auto Element : RISCVMultilibSet) { |
| addMultilibFlag(MArch == Element.march, |
| Twine("march=", Element.march).str().c_str(), Flags); |
| if (!Added_ABIs.count(Element.mabi)) { |
| Added_ABIs.insert(Element.mabi); |
| addMultilibFlag(ABIName == Element.mabi, |
| Twine("mabi=", Element.mabi).str().c_str(), Flags); |
| } |
| } |
| |
| if (RISCVMultilibs.select(Flags, Result.SelectedMultilib)) |
| Result.Multilibs = RISCVMultilibs; |
| } |
| |
| static void findRISCVMultilibs(const Driver &D, |
| const llvm::Triple &TargetTriple, StringRef Path, |
| const ArgList &Args, DetectedMultilibs &Result) { |
| if (TargetTriple.getOS() == llvm::Triple::UnknownOS) |
| return findRISCVBareMetalMultilibs(D, TargetTriple, Path, Args, Result); |
| |
| FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS()); |
| Multilib Ilp32 = makeMultilib("lib32/ilp32").flag("+m32").flag("+mabi=ilp32"); |
| Multilib Ilp32f = |
| makeMultilib("lib32/ilp32f").flag("+m32").flag("+mabi=ilp32f"); |
| Multilib Ilp32d = |
| makeMultilib("lib32/ilp32d").flag("+m32").flag("+mabi=ilp32d"); |
| Multilib Lp64 = makeMultilib("lib64/lp64").flag("+m64").flag("+mabi=lp64"); |
| Multilib Lp64f = makeMultilib("lib64/lp64f").flag("+m64").flag("+mabi=lp64f"); |
| Multilib Lp64d = makeMultilib("lib64/lp64d").flag("+m64").flag("+mabi=lp64d"); |
| MultilibSet RISCVMultilibs = |
| MultilibSet() |
| .Either({Ilp32, Ilp32f, Ilp32d, Lp64, Lp64f, Lp64d}) |
| .FilterOut(NonExistent); |
| |
| Multilib::flags_list Flags; |
| bool IsRV64 = TargetTriple.getArch() == llvm::Triple::riscv64; |
| StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple); |
| |
| addMultilibFlag(!IsRV64, "m32", Flags); |
| addMultilibFlag(IsRV64, "m64", Flags); |
| addMultilibFlag(ABIName == "ilp32", "mabi=ilp32", Flags); |
| addMultilibFlag(ABIName == "ilp32f", "mabi=ilp32f", Flags); |
| addMultilibFlag(ABIName == "ilp32d", "mabi=ilp32d", Flags); |
| addMultilibFlag(ABIName == "lp64", "mabi=lp64", Flags); |
| addMultilibFlag(ABIName == "lp64f", "mabi=lp64f", Flags); |
| addMultilibFlag(ABIName == "lp64d", "mabi=lp64d", Flags); |
| |
| if (RISCVMultilibs.select(Flags, Result.SelectedMultilib)) |
| Result.Multilibs = RISCVMultilibs; |
| } |
| |
| static bool findBiarchMultilibs(const Driver &D, |
| const llvm::Triple &TargetTriple, |
| StringRef Path, const ArgList &Args, |
| bool NeedsBiarchSuffix, |
| DetectedMultilibs &Result) { |
| Multilib Default; |
| |
| // Some versions of SUSE and Fedora on ppc64 put 32-bit libs |
| // in what would normally be GCCInstallPath and put the 64-bit |
| // libs in a subdirectory named 64. The simple logic we follow is that |
| // *if* there is a subdirectory of the right name with crtbegin.o in it, |
| // we use that. If not, and if not a biarch triple alias, we look for |
| // crtbegin.o without the subdirectory. |
| |
| StringRef Suff64 = "/64"; |
| // Solaris uses platform-specific suffixes instead of /64. |
| if (TargetTriple.getOS() == llvm::Triple::Solaris) { |
| switch (TargetTriple.getArch()) { |
| case llvm::Triple::x86: |
| case llvm::Triple::x86_64: |
| Suff64 = "/amd64"; |
| break; |
| case llvm::Triple::sparc: |
| case llvm::Triple::sparcv9: |
| Suff64 = "/sparcv9"; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| Multilib Alt64 = Multilib() |
| .gccSuffix(Suff64) |
| .includeSuffix(Suff64) |
| .flag("-m32") |
| .flag("+m64") |
| .flag("-mx32"); |
| Multilib Alt32 = Multilib() |
| .gccSuffix("/32") |
| .includeSuffix("/32") |
| .flag("+m32") |
| .flag("-m64") |
| .flag("-mx32"); |
| Multilib Altx32 = Multilib() |
| .gccSuffix("/x32") |
| .includeSuffix("/x32") |
| .flag("-m32") |
| .flag("-m64") |
| .flag("+mx32"); |
| |
| // GCC toolchain for IAMCU doesn't have crtbegin.o, so look for libgcc.a. |
| FilterNonExistent NonExistent( |
| Path, TargetTriple.isOSIAMCU() ? "/libgcc.a" : "/crtbegin.o", D.getVFS()); |
| |
| // Determine default multilib from: 32, 64, x32 |
| // Also handle cases such as 64 on 32, 32 on 64, etc. |
| enum { UNKNOWN, WANT32, WANT64, WANTX32 } Want = UNKNOWN; |
| const bool IsX32 = TargetTriple.isX32(); |
| if (TargetTriple.isArch32Bit() && !NonExistent(Alt32)) |
| Want = WANT64; |
| else if (TargetTriple.isArch64Bit() && IsX32 && !NonExistent(Altx32)) |
| Want = WANT64; |
| else if (TargetTriple.isArch64Bit() && !IsX32 && !NonExistent(Alt64)) |
| Want = WANT32; |
| else { |
| if (TargetTriple.isArch32Bit()) |
| Want = NeedsBiarchSuffix ? WANT64 : WANT32; |
| else if (IsX32) |
| Want = NeedsBiarchSuffix ? WANT64 : WANTX32; |
| else |
| Want = NeedsBiarchSuffix ? WANT32 : WANT64; |
| } |
| |
| if (Want == WANT32) |
| Default.flag("+m32").flag("-m64").flag("-mx32"); |
| else if (Want == WANT64) |
| Default.flag("-m32").flag("+m64").flag("-mx32"); |
| else if (Want == WANTX32) |
| Default.flag("-m32").flag("-m64").flag("+mx32"); |
| else |
| return false; |
| |
| Result.Multilibs.push_back(Default); |
| Result.Multilibs.push_back(Alt64); |
| Result.Multilibs.push_back(Alt32); |
| Result.Multilibs.push_back(Altx32); |
| |
| Result.Multilibs.FilterOut(NonExistent); |
| |
| Multilib::flags_list Flags; |
| addMultilibFlag(TargetTriple.isArch64Bit() && !IsX32, "m64", Flags); |
| addMultilibFlag(TargetTriple.isArch32Bit(), "m32", Flags); |
| addMultilibFlag(TargetTriple.isArch64Bit() && IsX32, "mx32", Flags); |
| |
| if (!Result.Multilibs.select(Flags, Result.SelectedMultilib)) |
| return false; |
| |
| if (Result.SelectedMultilib == Alt64 || Result.SelectedMultilib == Alt32 || |
| Result.SelectedMultilib == Altx32) |
| Result.BiarchSibling = Default; |
| |
| return true; |
| } |
| |
| /// Generic_GCC - A tool chain using the 'gcc' command to perform |
| /// all subcommands; this relies on gcc translating the majority of |
| /// command line options. |
| |
| /// Less-than for GCCVersion, implementing a Strict Weak Ordering. |
| bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor, |
| int RHSPatch, |
| StringRef RHSPatchSuffix) const { |
| if (Major != RHSMajor) |
| return Major < RHSMajor; |
| if (Minor != RHSMinor) |
| return Minor < RHSMinor; |
| if (Patch != RHSPatch) { |
| // Note that versions without a specified patch sort higher than those with |
| // a patch. |
| if (RHSPatch == -1) |
| return true; |
| if (Patch == -1) |
| return false; |
| |
| // Otherwise just sort on the patch itself. |
| return Patch < RHSPatch; |
| } |
| if (PatchSuffix != RHSPatchSuffix) { |
| // Sort empty suffixes higher. |
| if (RHSPatchSuffix.empty()) |
| return true; |
| if (PatchSuffix.empty()) |
| return false; |
| |
| // Provide a lexicographic sort to make this a total ordering. |
| return PatchSuffix < RHSPatchSuffix; |
| } |
| |
| // The versions are equal. |
| return false; |
| } |
| |
| /// Parse a GCCVersion object out of a string of text. |
| /// |
| /// This is the primary means of forming GCCVersion objects. |
| /*static*/ |
| Generic_GCC::GCCVersion Generic_GCC::GCCVersion::Parse(StringRef VersionText) { |
| const GCCVersion BadVersion = {VersionText.str(), -1, -1, -1, "", "", ""}; |
| std::pair<StringRef, StringRef> First = VersionText.split('.'); |
| std::pair<StringRef, StringRef> Second = First.second.split('.'); |
| |
| GCCVersion GoodVersion = {VersionText.str(), -1, -1, -1, "", "", ""}; |
| if (First.first.getAsInteger(10, GoodVersion.Major) || GoodVersion.Major < 0) |
| return BadVersion; |
| GoodVersion.MajorStr = First.first.str(); |
| if (First.second.empty()) |
| return GoodVersion; |
| StringRef MinorStr = Second.first; |
| if (Second.second.empty()) { |
| if (size_t EndNumber = MinorStr.find_first_not_of("0123456789")) { |
| GoodVersion.PatchSuffix = std::string(MinorStr.substr(EndNumber)); |
| MinorStr = MinorStr.slice(0, EndNumber); |
| } |
| } |
| if (MinorStr.getAsInteger(10, GoodVersion.Minor) || GoodVersion.Minor < 0) |
| return BadVersion; |
| GoodVersion.MinorStr = MinorStr.str(); |
| |
| // First look for a number prefix and parse that if present. Otherwise just |
| // stash the entire patch string in the suffix, and leave the number |
| // unspecified. This covers versions strings such as: |
| // 5 (handled above) |
| // 4.4 |
| // 4.4-patched |
| // 4.4.0 |
| // 4.4.x |
| // 4.4.2-rc4 |
| // 4.4.x-patched |
| // And retains any patch number it finds. |
| StringRef PatchText = Second.second; |
| if (!PatchText.empty()) { |
| if (size_t EndNumber = PatchText.find_first_not_of("0123456789")) { |
| // Try to parse the number and any suffix. |
| if (PatchText.slice(0, EndNumber).getAsInteger(10, GoodVersion.Patch) || |
| GoodVersion.Patch < 0) |
| return BadVersion; |
| GoodVersion.PatchSuffix = std::string(PatchText.substr(EndNumber)); |
| } |
| } |
| |
| return GoodVersion; |
| } |
| |
| static llvm::StringRef getGCCToolchainDir(const ArgList &Args, |
| llvm::StringRef SysRoot) { |
| const Arg *A = Args.getLastArg(clang::driver::options::OPT_gcc_toolchain); |
| if (A) |
| return A->getValue(); |
| |
| // If we have a SysRoot, ignore GCC_INSTALL_PREFIX. |
| // GCC_INSTALL_PREFIX specifies the gcc installation for the default |
| // sysroot and is likely not valid with a different sysroot. |
| if (!SysRoot.empty()) |
| return ""; |
| |
| return GCC_INSTALL_PREFIX; |
| } |
| |
| /// Initialize a GCCInstallationDetector from the driver. |
| /// |
| /// This performs all of the autodetection and sets up the various paths. |
| /// Once constructed, a GCCInstallationDetector is essentially immutable. |
| /// |
| /// FIXME: We shouldn't need an explicit TargetTriple parameter here, and |
| /// should instead pull the target out of the driver. This is currently |
| /// necessary because the driver doesn't store the final version of the target |
| /// triple. |
| void Generic_GCC::GCCInstallationDetector::init( |
| const llvm::Triple &TargetTriple, const ArgList &Args, |
| ArrayRef<std::string> ExtraTripleAliases) { |
| llvm::Triple BiarchVariantTriple = TargetTriple.isArch32Bit() |
| ? TargetTriple.get64BitArchVariant() |
| : TargetTriple.get32BitArchVariant(); |
| // The library directories which may contain GCC installations. |
| SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs; |
| // The compatible GCC triples for this particular architecture. |
| SmallVector<StringRef, 16> CandidateTripleAliases; |
| SmallVector<StringRef, 16> CandidateBiarchTripleAliases; |
| CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs, |
| CandidateTripleAliases, CandidateBiarchLibDirs, |
| CandidateBiarchTripleAliases); |
| |
| // Compute the set of prefixes for our search. |
| SmallVector<std::string, 8> Prefixes; |
| StringRef GCCToolchainDir = getGCCToolchainDir(Args, D.SysRoot); |
| if (GCCToolchainDir != "") { |
| if (GCCToolchainDir.back() == '/') |
| GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the / |
| |
| Prefixes.push_back(std::string(GCCToolchainDir)); |
| } else { |
| // If we have a SysRoot, try that first. |
| if (!D.SysRoot.empty()) { |
| Prefixes.push_back(D.SysRoot); |
| AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot); |
| } |
| |
| // Then look for gcc installed alongside clang. |
| Prefixes.push_back(D.InstalledDir + "/.."); |
| |
| // Next, look for prefix(es) that correspond to distribution-supplied gcc |
| // installations. |
| if (D.SysRoot.empty()) { |
| // Typically /usr. |
| AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot); |
| } |
| |
| // Try to respect gcc-config on Gentoo if --gcc-toolchain is not provided. |
| // This avoids accidentally enforcing the system GCC version when using a |
| // custom toolchain. |
| SmallVector<StringRef, 16> GentooTestTriples; |
| // Try to match an exact triple as target triple first. |
| // e.g. crossdev -S x86_64-gentoo-linux-gnu will install gcc libs for |
| // x86_64-gentoo-linux-gnu. But "clang -target x86_64-gentoo-linux-gnu" |
| // may pick the libraries for x86_64-pc-linux-gnu even when exact matching |
| // triple x86_64-gentoo-linux-gnu is present. |
| GentooTestTriples.push_back(TargetTriple.str()); |
| // Check rest of triples. |
| GentooTestTriples.append(ExtraTripleAliases.begin(), |
| ExtraTripleAliases.end()); |
| GentooTestTriples.append(CandidateTripleAliases.begin(), |
| CandidateTripleAliases.end()); |
| if (ScanGentooConfigs(TargetTriple, Args, GentooTestTriples, |
| CandidateBiarchTripleAliases)) |
| return; |
| } |
| |
| // Loop over the various components which exist and select the best GCC |
| // installation available. GCC installs are ranked by version number. |
| const GCCVersion VersionZero = GCCVersion::Parse("0.0.0"); |
| Version = VersionZero; |
| for (const std::string &Prefix : Prefixes) { |
| auto &VFS = D.getVFS(); |
| if (!VFS.exists(Prefix)) |
| continue; |
| for (StringRef Suffix : CandidateLibDirs) { |
| const std::string LibDir = Prefix + Suffix.str(); |
| if (!VFS.exists(LibDir)) |
| continue; |
| // Maybe filter out <libdir>/gcc and <libdir>/gcc-cross. |
| bool GCCDirExists = VFS.exists(LibDir + "/gcc"); |
| bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross"); |
| // Try to match the exact target triple first. |
| ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, TargetTriple.str(), |
| false, GCCDirExists, GCCCrossDirExists); |
| // Try rest of possible triples. |
| for (StringRef Candidate : ExtraTripleAliases) // Try these first. |
| ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, false, |
| GCCDirExists, GCCCrossDirExists); |
| for (StringRef Candidate : CandidateTripleAliases) |
| ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, false, |
| GCCDirExists, GCCCrossDirExists); |
| } |
| for (StringRef Suffix : CandidateBiarchLibDirs) { |
| const std::string LibDir = Prefix + Suffix.str(); |
| if (!VFS.exists(LibDir)) |
| continue; |
| bool GCCDirExists = VFS.exists(LibDir + "/gcc"); |
| bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross"); |
| for (StringRef Candidate : CandidateBiarchTripleAliases) |
| ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, true, |
| GCCDirExists, GCCCrossDirExists); |
| } |
| |
| // Skip other prefixes once a GCC installation is found. |
| if (Version > VersionZero) |
| break; |
| } |
| } |
| |
| void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const { |
| for (const auto &InstallPath : CandidateGCCInstallPaths) |
| OS << "Found candidate GCC installation: " << InstallPath << "\n"; |
| |
| if (!GCCInstallPath.empty()) |
| OS << "Selected GCC installation: " << GCCInstallPath << "\n"; |
| |
| for (const auto &Multilib : Multilibs) |
| OS << "Candidate multilib: " << Multilib << "\n"; |
| |
| if (Multilibs.size() != 0 || !SelectedMultilib.isDefault()) |
| OS << "Selected multilib: " << SelectedMultilib << "\n"; |
| } |
| |
| bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const { |
| if (BiarchSibling.hasValue()) { |
| M = BiarchSibling.getValue(); |
| return true; |
| } |
| return false; |
| } |
| |
| void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes( |
| const llvm::Triple &TargetTriple, SmallVectorImpl<std::string> &Prefixes, |
| StringRef SysRoot) { |
| if (TargetTriple.getOS() == llvm::Triple::Solaris) { |
| // Solaris is a special case. |
| // The GCC installation is under |
| // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/ |
| // so we need to find those /usr/gcc/*/lib/gcc libdirs and go with |
| // /usr/gcc/<version> as a prefix. |
| |
| std::string PrefixDir = SysRoot.str() + "/usr/gcc"; |
| std::error_code EC; |
| for (llvm::vfs::directory_iterator LI = D.getVFS().dir_begin(PrefixDir, EC), |
| LE; |
| !EC && LI != LE; LI = LI.increment(EC)) { |
| StringRef VersionText = llvm::sys::path::filename(LI->path()); |
| GCCVersion CandidateVersion = GCCVersion::Parse(VersionText); |
| |
| // Filter out obviously bad entries. |
| if (CandidateVersion.Major == -1 || CandidateVersion.isOlderThan(4, 1, 1)) |
| continue; |
| |
| std::string CandidatePrefix = PrefixDir + "/" + VersionText.str(); |
| std::string CandidateLibPath = CandidatePrefix + "/lib/gcc"; |
| if (!D.getVFS().exists(CandidateLibPath)) |
| continue; |
| |
| Prefixes.push_back(CandidatePrefix); |
| } |
| return; |
| } |
| |
| // Non-Solaris is much simpler - most systems just go with "/usr". |
| if (SysRoot.empty() && TargetTriple.getOS() == llvm::Triple::Linux) { |
| // Yet, still look for RHEL/CentOS devtoolsets and gcc-toolsets. |
| Prefixes.push_back("/opt/rh/gcc-toolset-10/root/usr"); |
| Prefixes.push_back("/opt/rh/devtoolset-10/root/usr"); |
| Prefixes.push_back("/opt/rh/devtoolset-9/root/usr"); |
| Prefixes.push_back("/opt/rh/devtoolset-8/root/usr"); |
| Prefixes.push_back("/opt/rh/devtoolset-7/root/usr"); |
| Prefixes.push_back("/opt/rh/devtoolset-6/root/usr"); |
| Prefixes.push_back("/opt/rh/devtoolset-4/root/usr"); |
| Prefixes.push_back("/opt/rh/devtoolset-3/root/usr"); |
| Prefixes.push_back("/opt/rh/devtoolset-2/root/usr"); |
| } |
| Prefixes.push_back(SysRoot.str() + "/usr"); |
| } |
| |
| /*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples( |
| const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple, |
| SmallVectorImpl<StringRef> &LibDirs, |
| SmallVectorImpl<StringRef> &TripleAliases, |
| SmallVectorImpl<StringRef> &BiarchLibDirs, |
| SmallVectorImpl<StringRef> &BiarchTripleAliases) { |
| // Declare a bunch of static data sets that we'll select between below. These |
| // are specifically designed to always refer to string literals to avoid any |
| // lifetime or initialization issues. |
| // |
| // The *Triples variables hard code some triples so that, for example, |
| // --target=aarch64 (incomplete triple) can detect lib/aarch64-linux-gnu. |
| // They are not needed when the user has correct LLVM_DEFAULT_TARGET_TRIPLE |
| // and always uses the full --target (e.g. --target=aarch64-linux-gnu). The |
| // lists should shrink over time. Please don't add more elements to *Triples. |
| static const char *const AArch64LibDirs[] = {"/lib64", "/lib"}; |
| static const char *const AArch64Triples[] = { |
| "aarch64-none-linux-gnu", "aarch64-linux-gnu", "aarch64-redhat-linux", |
| "aarch64-suse-linux"}; |
| static const char *const AArch64beLibDirs[] = {"/lib"}; |
| static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu", |
| "aarch64_be-linux-gnu"}; |
| |
| static const char *const ARMLibDirs[] = {"/lib"}; |
| static const char *const ARMTriples[] = {"arm-linux-gnueabi"}; |
| static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf", |
| "armv7hl-redhat-linux-gnueabi", |
| "armv6hl-suse-linux-gnueabi", |
| "armv7hl-suse-linux-gnueabi"}; |
| static const char *const ARMebLibDirs[] = {"/lib"}; |
| static const char *const ARMebTriples[] = {"armeb-linux-gnueabi"}; |
| static const char *const ARMebHFTriples[] = { |
| "armeb-linux-gnueabihf", "armebv7hl-redhat-linux-gnueabi"}; |
| |
| static const char *const AVRLibDirs[] = {"/lib"}; |
| static const char *const AVRTriples[] = {"avr"}; |
| |
| static const char *const X86_64LibDirs[] = {"/lib64", "/lib"}; |
| static const char *const X86_64Triples[] = { |
| "x86_64-linux-gnu", "x86_64-unknown-linux-gnu", |
| "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E", |
| "x86_64-redhat-linux", "x86_64-suse-linux", |
| "x86_64-manbo-linux-gnu", "x86_64-linux-gnu", |
| "x86_64-slackware-linux", "x86_64-unknown-linux", |
| "x86_64-amazon-linux"}; |
| static const char *const X32Triples[] = {"x86_64-linux-gnux32", |
| "x86_64-pc-linux-gnux32"}; |
| static const char *const X32LibDirs[] = {"/libx32", "/lib"}; |
| static const char *const X86LibDirs[] = {"/lib32", "/lib"}; |
| static const char *const X86Triples[] = { |
| "i586-linux-gnu", "i686-linux-gnu", "i686-pc-linux-gnu", |
| "i386-redhat-linux6E", "i686-redhat-linux", "i386-redhat-linux", |
| "i586-suse-linux", "i686-montavista-linux", "i686-gnu", |
| }; |
| |
| static const char *const M68kLibDirs[] = {"/lib"}; |
| static const char *const M68kTriples[] = { |
| "m68k-linux-gnu", "m68k-unknown-linux-gnu", "m68k-suse-linux"}; |
| |
| static const char *const MIPSLibDirs[] = {"/libo32", "/lib"}; |
| static const char *const MIPSTriples[] = { |
| "mips-linux-gnu", "mips-mti-linux", "mips-mti-linux-gnu", |
| "mips-img-linux-gnu", "mipsisa32r6-linux-gnu"}; |
| static const char *const MIPSELLibDirs[] = {"/libo32", "/lib"}; |
| static const char *const MIPSELTriples[] = { |
| "mipsel-linux-gnu", "mips-img-linux-gnu", "mipsisa32r6el-linux-gnu"}; |
| |
| static const char *const MIPS64LibDirs[] = {"/lib64", "/lib"}; |
| static const char *const MIPS64Triples[] = { |
| "mips64-linux-gnu", "mips-mti-linux-gnu", |
| "mips-img-linux-gnu", "mips64-linux-gnuabi64", |
| "mipsisa64r6-linux-gnu", "mipsisa64r6-linux-gnuabi64"}; |
| static const char *const MIPS64ELLibDirs[] = {"/lib64", "/lib"}; |
| static const char *const MIPS64ELTriples[] = { |
| "mips64el-linux-gnu", "mips-mti-linux-gnu", |
| "mips-img-linux-gnu", "mips64el-linux-gnuabi64", |
| "mipsisa64r6el-linux-gnu", "mipsisa64r6el-linux-gnuabi64"}; |
| |
| static const char *const MIPSN32LibDirs[] = {"/lib32"}; |
| static const char *const MIPSN32Triples[] = {"mips64-linux-gnuabin32", |
| "mipsisa64r6-linux-gnuabin32"}; |
| static const char *const MIPSN32ELLibDirs[] = {"/lib32"}; |
| static const char *const MIPSN32ELTriples[] = { |
| "mips64el-linux-gnuabin32", "mipsisa64r6el-linux-gnuabin32"}; |
| |
| static const char *const MSP430LibDirs[] = {"/lib"}; |
| static const char *const MSP430Triples[] = {"msp430-elf"}; |
| |
| static const char *const PPCLibDirs[] = {"/lib32", "/lib"}; |
| static const char *const PPCTriples[] = { |
| "powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe", |
| // On 32-bit PowerPC systems running SUSE Linux, gcc is configured as a |
| // 64-bit compiler which defaults to "-m32", hence "powerpc64-suse-linux". |
| "powerpc64-suse-linux", "powerpc-montavista-linuxspe"}; |
| static const char *const PPCLELibDirs[] = {"/lib32", "/lib"}; |
| static const char *const PPCLETriples[] = {"powerpcle-linux-gnu", |
| "powerpcle-unknown-linux-gnu", |
| "powerpcle-linux-musl"}; |
| |
| static const char *const PPC64LibDirs[] = {"/lib64", "/lib"}; |
| static const char *const PPC64Triples[] = { |
| "powerpc64-linux-gnu", "powerpc64-unknown-linux-gnu", |
| "powerpc64-suse-linux", "ppc64-redhat-linux"}; |
| static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"}; |
| static const char *const PPC64LETriples[] = { |
| "powerpc64le-linux-gnu", "powerpc64le-unknown-linux-gnu", |
| "powerpc64le-none-linux-gnu", "powerpc64le-suse-linux", |
| "ppc64le-redhat-linux"}; |
| |
| static const char *const RISCV32LibDirs[] = {"/lib32", "/lib"}; |
| static const char *const RISCV32Triples[] = {"riscv32-unknown-linux-gnu", |
| "riscv32-linux-gnu", |
| "riscv32-unknown-elf"}; |
| static const char *const RISCV64LibDirs[] = {"/lib64", "/lib"}; |
| static const char *const RISCV64Triples[] = {"riscv64-unknown-linux-gnu", |
| "riscv64-linux-gnu", |
| "riscv64-unknown-elf"}; |
| |
| static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"}; |
| static const char *const SPARCv8Triples[] = {"sparc-linux-gnu", |
| "sparcv8-linux-gnu"}; |
| static const char *const SPARCv9LibDirs[] = {"/lib64", "/lib"}; |
| static const char *const SPARCv9Triples[] = {"sparc64-linux-gnu", |
| "sparcv9-linux-gnu"}; |
| |
| static const char *const SystemZLibDirs[] = {"/lib64", "/lib"}; |
| static const char *const SystemZTriples[] = { |
| "s390x-linux-gnu", "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu", |
| "s390x-suse-linux", "s390x-redhat-linux"}; |
| |
| |
| using std::begin; |
| using std::end; |
| |
| if (TargetTriple.getOS() == llvm::Triple::Solaris) { |
| static const char *const SolarisLibDirs[] = {"/lib"}; |
| static const char *const SolarisSparcV8Triples[] = { |
| "sparc-sun-solaris2.11", "sparc-sun-solaris2.12"}; |
| static const char *const SolarisSparcV9Triples[] = { |
| "sparcv9-sun-solaris2.11", "sparcv9-sun-solaris2.12"}; |
| static const char *const SolarisX86Triples[] = {"i386-pc-solaris2.11", |
| "i386-pc-solaris2.12"}; |
| static const char *const SolarisX86_64Triples[] = {"x86_64-pc-solaris2.11", |
| "x86_64-pc-solaris2.12"}; |
| LibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs)); |
| BiarchLibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs)); |
| switch (TargetTriple.getArch()) { |
| case llvm::Triple::x86: |
| TripleAliases.append(begin(SolarisX86Triples), end(SolarisX86Triples)); |
| BiarchTripleAliases.append(begin(SolarisX86_64Triples), |
| end(SolarisX86_64Triples)); |
| break; |
| case llvm::Triple::x86_64: |
| TripleAliases.append(begin(SolarisX86_64Triples), |
| end(SolarisX86_64Triples)); |
| BiarchTripleAliases.append(begin(SolarisX86Triples), |
| end(SolarisX86Triples)); |
| break; |
| case llvm::Triple::sparc: |
| TripleAliases.append(begin(SolarisSparcV8Triples), |
| end(SolarisSparcV8Triples)); |
| BiarchTripleAliases.append(begin(SolarisSparcV9Triples), |
| end(SolarisSparcV9Triples)); |
| break; |
| case llvm::Triple::sparcv9: |
| TripleAliases.append(begin(SolarisSparcV9Triples), |
| end(SolarisSparcV9Triples)); |
| BiarchTripleAliases.append(begin(SolarisSparcV8Triples), |
| end(SolarisSparcV8Triples)); |
| break; |
| default: |
| break; |
| } |
| return; |
| } |
| |
| // Android targets should not use GNU/Linux tools or libraries. |
| if (TargetTriple.isAndroid()) { |
| static const char *const AArch64AndroidTriples[] = { |
| "aarch64-linux-android"}; |
| static const char *const ARMAndroidTriples[] = {"arm-linux-androideabi"}; |
| static const char *const MIPSELAndroidTriples[] = {"mipsel-linux-android"}; |
| static const char *const MIPS64ELAndroidTriples[] = { |
| "mips64el-linux-android"}; |
| static const char *const X86AndroidTriples[] = {"i686-linux-android"}; |
| static const char *const X86_64AndroidTriples[] = {"x86_64-linux-android"}; |
| |
| switch (TargetTriple.getArch()) { |
| case llvm::Triple::aarch64: |
| LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs)); |
| TripleAliases.append(begin(AArch64AndroidTriples), |
| end(AArch64AndroidTriples)); |
| break; |
| case llvm::Triple::arm: |
| case llvm::Triple::thumb: |
| LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs)); |
| TripleAliases.append(begin(ARMAndroidTriples), end(ARMAndroidTriples)); |
| break; |
| case llvm::Triple::mipsel: |
| LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs)); |
| TripleAliases.append(begin(MIPSELAndroidTriples), |
| end(MIPSELAndroidTriples)); |
| BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs)); |
| BiarchTripleAliases.append(begin(MIPS64ELAndroidTriples), |
| end(MIPS64ELAndroidTriples)); |
| break; |
| case llvm::Triple::mips64el: |
| LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs)); |
| TripleAliases.append(begin(MIPS64ELAndroidTriples), |
| end(MIPS64ELAndroidTriples)); |
| BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs)); |
| BiarchTripleAliases.append(begin(MIPSELAndroidTriples), |
| end(MIPSELAndroidTriples)); |
| break; |
| case llvm::Triple::x86_64: |
| LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs)); |
| TripleAliases.append(begin(X86_64AndroidTriples), |
| end(X86_64AndroidTriples)); |
| BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs)); |
| BiarchTripleAliases.append(begin(X86AndroidTriples), |
| end(X86AndroidTriples)); |
| break; |
| case llvm::Triple::x86: |
| LibDirs.append(begin(X86LibDirs), end(X86LibDirs)); |
| TripleAliases.append(begin(X86AndroidTriples), end(X86AndroidTriples)); |
| BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs)); |
| BiarchTripleAliases.append(begin(X86_64AndroidTriples), |
| end(X86_64AndroidTriples)); |
| break; |
| default: |
| break; |
| } |
| |
| return; |
| } |
| |
| switch (TargetTriple.getArch()) { |
| case llvm::Triple::aarch64: |
| LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs)); |
| TripleAliases.append(begin(AArch64Triples), end(AArch64Triples)); |
| BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs)); |
| BiarchTripleAliases.append(begin(AArch64Triples), end(AArch64Triples)); |
| break; |
| case llvm::Triple::aarch64_be: |
| LibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs)); |
| TripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples)); |
| BiarchLibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs)); |
| BiarchTripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples)); |
| break; |
| case llvm::Triple::arm: |
| case llvm::Triple::thumb: |
| LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs)); |
| if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) { |
| TripleAliases.append(begin(ARMHFTriples), end(ARMHFTriples)); |
| } else { |
| TripleAliases.append(begin(ARMTriples), end(ARMTriples)); |
| } |
| break; |
| case llvm::Triple::armeb: |
| case llvm::Triple::thumbeb: |
| LibDirs.append(begin(ARMebLibDirs), end(ARMebLibDirs)); |
| if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) { |
| TripleAliases.append(begin(ARMebHFTriples), end(ARMebHFTriples)); |
| } else { |
| TripleAliases.append(begin(ARMebTriples), end(ARMebTriples)); |
| } |
| break; |
| case llvm::Triple::avr: |
| LibDirs.append(begin(AVRLibDirs), end(AVRLibDirs)); |
| TripleAliases.append(begin(AVRTriples), end(AVRTriples)); |
| break; |
| case llvm::Triple::x86_64: |
| if (TargetTriple.isX32()) { |
| LibDirs.append(begin(X32LibDirs), end(X32LibDirs)); |
| TripleAliases.append(begin(X32Triples), end(X32Triples)); |
| BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs)); |
| BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples)); |
| } else { |
| LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs)); |
| TripleAliases.append(begin(X86_64Triples), end(X86_64Triples)); |
| BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs)); |
| BiarchTripleAliases.append(begin(X32Triples), end(X32Triples)); |
| } |
| BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs)); |
| BiarchTripleAliases.append(begin(X86Triples), end(X86Triples)); |
| break; |
| case llvm::Triple::x86: |
| LibDirs.append(begin(X86LibDirs), end(X86LibDirs)); |
| // MCU toolchain is 32 bit only and its triple alias is TargetTriple |
| // itself, which will be appended below. |
| if (!TargetTriple.isOSIAMCU()) { |
| TripleAliases.append(begin(X86Triples), end(X86Triples)); |
| BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs)); |
| BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples)); |
| BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs)); |
| BiarchTripleAliases.append(begin(X32Triples), end(X32Triples)); |
| } |
| break; |
| case llvm::Triple::m68k: |
| LibDirs.append(begin(M68kLibDirs), end(M68kLibDirs)); |
| TripleAliases.append(begin(M68kTriples), end(M68kTriples)); |
| break; |
| case llvm::Triple::mips: |
| LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs)); |
| TripleAliases.append(begin(MIPSTriples), end(MIPSTriples)); |
| BiarchLibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs)); |
| BiarchTripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples)); |
| BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs)); |
| BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples)); |
| break; |
| case llvm::Triple::mipsel: |
| LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs)); |
| TripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples)); |
| TripleAliases.append(begin(MIPSTriples), end(MIPSTriples)); |
| BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs)); |
| BiarchTripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples)); |
| BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs)); |
| BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples)); |
| break; |
| case llvm::Triple::mips64: |
| LibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs)); |
| TripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples)); |
| BiarchLibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs)); |
| BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples)); |
| BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs)); |
| BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples)); |
| break; |
| case llvm::Triple::mips64el: |
| LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs)); |
| TripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples)); |
| BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs)); |
| BiarchTripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples)); |
| BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs)); |
| BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples)); |
| BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples)); |
| break; |
| case llvm::Triple::msp430: |
| LibDirs.append(begin(MSP430LibDirs), end(MSP430LibDirs)); |
| TripleAliases.append(begin(MSP430Triples), end(MSP430Triples)); |
| break; |
| case llvm::Triple::ppc: |
| LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs)); |
| TripleAliases.append(begin(PPCTriples), end(PPCTriples)); |
| BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs)); |
| BiarchTripleAliases.append(begin(PPC64Triples), end(PPC64Triples)); |
| break; |
| case llvm::Triple::ppcle: |
| LibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs)); |
| TripleAliases.append(begin(PPCLETriples), end(PPCLETriples)); |
| BiarchLibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs)); |
| BiarchTripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples)); |
| break; |
| case llvm::Triple::ppc64: |
| LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs)); |
| TripleAliases.append(begin(PPC64Triples), end(PPC64Triples)); |
| BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs)); |
| BiarchTripleAliases.append(begin(PPCTriples), end(PPCTriples)); |
| break; |
| case llvm::Triple::ppc64le: |
| LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs)); |
| TripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples)); |
| BiarchLibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs)); |
| BiarchTripleAliases.append(begin(PPCLETriples), end(PPCLETriples)); |
| break; |
| case llvm::Triple::riscv32: |
| LibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs)); |
| TripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples)); |
| BiarchLibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs)); |
| BiarchTripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples)); |
| break; |
| case llvm::Triple::riscv64: |
| LibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs)); |
| TripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples)); |
| BiarchLibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs)); |
| BiarchTripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples)); |
| break; |
| case llvm::Triple::sparc: |
| case llvm::Triple::sparcel: |
| LibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs)); |
| TripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples)); |
| BiarchLibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs)); |
| BiarchTripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples)); |
| break; |
| case llvm::Triple::sparcv9: |
| LibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs)); |
| TripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples)); |
| BiarchLibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs)); |
| BiarchTripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples)); |
| break; |
| case llvm::Triple::systemz: |
| LibDirs.append(begin(SystemZLibDirs), end(SystemZLibDirs)); |
| TripleAliases.append(begin(SystemZTriples), end(SystemZTriples)); |
| break; |
| default: |
| // By default, just rely on the standard lib directories and the original |
| // triple. |
| break; |
| } |
| |
| // Always append the drivers target triple to the end, in case it doesn't |
| // match any of our aliases. |
| TripleAliases.push_back(TargetTriple.str()); |
| |
| // Also include the multiarch variant if it's different. |
| if (TargetTriple.str() != BiarchTriple.str()) |
| BiarchTripleAliases.push_back(BiarchTriple.str()); |
| } |
| |
| bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs( |
| const llvm::Triple &TargetTriple, const ArgList &Args, |
| StringRef Path, bool NeedsBiarchSuffix) { |
| llvm::Triple::ArchType TargetArch = TargetTriple.getArch(); |
| DetectedMultilibs Detected; |
| |
| // Android standalone toolchain could have multilibs for ARM and Thumb. |
| // Debian mips multilibs behave more like the rest of the biarch ones, |
| // so handle them there |
| if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) { |
| // It should also work without multilibs in a simplified toolchain. |
| findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected); |
| } else if (TargetTriple.isMIPS()) { |
| if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected)) |
| return false; |
| } else if (TargetTriple.isRISCV()) { |
| findRISCVMultilibs(D, TargetTriple, Path, Args, Detected); |
| } else if (isMSP430(TargetArch)) { |
| findMSP430Multilibs(D, TargetTriple, Path, Args, Detected); |
| } else if (TargetArch == llvm::Triple::avr) { |
| // AVR has no multilibs. |
| } else if (!findBiarchMultilibs(D, TargetTriple, Path, Args, |
| NeedsBiarchSuffix, Detected)) { |
| return false; |
| } |
| |
| Multilibs = Detected.Multilibs; |
| SelectedMultilib = Detected.SelectedMultilib; |
| BiarchSibling = Detected.BiarchSibling; |
| |
| return true; |
| } |
| |
| void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple( |
| const llvm::Triple &TargetTriple, const ArgList &Args, |
| const std::string &LibDir, StringRef CandidateTriple, |
| bool NeedsBiarchSuffix, bool GCCDirExists, bool GCCCrossDirExists) { |
| // Locations relative to the system lib directory where GCC's triple-specific |
| // directories might reside. |
| struct GCCLibSuffix { |
| // Path from system lib directory to GCC triple-specific directory. |
| std::string LibSuffix; |
| // Path from GCC triple-specific directory back to system lib directory. |
| // This is one '..' component per component in LibSuffix. |
| StringRef ReversePath; |
| // Whether this library suffix is relevant for the triple. |
| bool Active; |
| } Suffixes[] = { |
| // This is the normal place. |
| {"gcc/" + CandidateTriple.str(), "../..", GCCDirExists}, |
| |
| // Debian puts cross-compilers in gcc-cross. |
| {"gcc-cross/" + CandidateTriple.str(), "../..", GCCCrossDirExists}, |
| |
| // The Freescale PPC SDK has the gcc libraries in |
| // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do |
| // this on Freescale triples, though, since some systems put a *lot* of |
| // files in that location, not just GCC installation data. |
| {CandidateTriple.str(), "..", |
| TargetTriple.getVendor() == llvm::Triple::Freescale || |
| TargetTriple.getVendor() == llvm::Triple::OpenEmbedded}}; |
| |
| for (auto &Suffix : Suffixes) { |
| if (!Suffix.Active) |
| continue; |
| |
| StringRef LibSuffix = Suffix.LibSuffix; |
| std::error_code EC; |
| for (llvm::vfs::directory_iterator |
| LI = D.getVFS().dir_begin(LibDir + "/" + LibSuffix, EC), |
| LE; |
| !EC && LI != LE; LI = LI.increment(EC)) { |
| StringRef VersionText = llvm::sys::path::filename(LI->path()); |
| GCCVersion CandidateVersion = GCCVersion::Parse(VersionText); |
| if (CandidateVersion.Major != -1) // Filter obviously bad entries. |
| if (!CandidateGCCInstallPaths.insert(std::string(LI->path())).second) |
| continue; // Saw this path before; no need to look at it again. |
| if (CandidateVersion.isOlderThan(4, 1, 1)) |
| continue; |
| if (CandidateVersion <= Version) |
| continue; |
| |
| if (!ScanGCCForMultilibs(TargetTriple, Args, LI->path(), |
| NeedsBiarchSuffix)) |
| continue; |
| |
| Version = CandidateVersion; |
| GCCTriple.setTriple(CandidateTriple); |
| // FIXME: We hack together the directory name here instead of |
| // using LI to ensure stable path separators across Windows and |
| // Linux. |
| GCCInstallPath = (LibDir + "/" + LibSuffix + "/" + VersionText).str(); |
| GCCParentLibPath = (GCCInstallPath + "/../" + Suffix.ReversePath).str(); |
| IsValid = true; |
| } |
| } |
| } |
| |
| bool Generic_GCC::GCCInstallationDetector::ScanGentooConfigs( |
| const llvm::Triple &TargetTriple, const ArgList &Args, |
| const SmallVectorImpl<StringRef> &CandidateTriples, |
| const SmallVectorImpl<StringRef> &CandidateBiarchTriples) { |
| if (!D.getVFS().exists(D.SysRoot + GentooConfigDir)) |
| return false; |
| |
| for (StringRef CandidateTriple : CandidateTriples) { |
| if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple)) |
| return true; |
| } |
| |
| for (StringRef CandidateTriple : CandidateBiarchTriples) { |
| if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple, true)) |
| return true; |
| } |
| return false; |
| } |
| |
| bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig( |
| const llvm::Triple &TargetTriple, const ArgList &Args, |
| StringRef CandidateTriple, bool NeedsBiarchSuffix) { |
| llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File = |
| D.getVFS().getBufferForFile(D.SysRoot + GentooConfigDir + "/config-" + |
| CandidateTriple.str()); |
| if (File) { |
| SmallVector<StringRef, 2> Lines; |
| File.get()->getBuffer().split(Lines, "\n"); |
| for (StringRef Line : Lines) { |
| Line = Line.trim(); |
| // CURRENT=triple-version |
| if (!Line.consume_front("CURRENT=")) |
| continue; |
| // Process the config file pointed to by CURRENT. |
| llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> ConfigFile = |
| D.getVFS().getBufferForFile(D.SysRoot + GentooConfigDir + "/" + |
| Line.str()); |
| std::pair<StringRef, StringRef> ActiveVersion = Line.rsplit('-'); |
| // List of paths to scan for libraries. |
| SmallVector<StringRef, 4> GentooScanPaths; |
| // Scan the Config file to find installed GCC libraries path. |
| // Typical content of the GCC config file: |
| // LDPATH="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x:/usr/lib/gcc/ |
| // (continued from previous line) x86_64-pc-linux-gnu/4.9.x/32" |
| // MANPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/man" |
| // INFOPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/info" |
| // STDCXX_INCDIR="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x/include/g++-v4" |
| // We are looking for the paths listed in LDPATH=... . |
| if (ConfigFile) { |
| SmallVector<StringRef, 2> ConfigLines; |
| ConfigFile.get()->getBuffer().split(ConfigLines, "\n"); |
| for (StringRef ConfLine : ConfigLines) { |
| ConfLine = ConfLine.trim(); |
| if (ConfLine.consume_front("LDPATH=")) { |
| // Drop '"' from front and back if present. |
| ConfLine.consume_back("\""); |
| ConfLine.consume_front("\""); |
| // Get all paths sperated by ':' |
| ConfLine.split(GentooScanPaths, ':', -1, /*AllowEmpty*/ false); |
| } |
| } |
| } |
| // Test the path based on the version in /etc/env.d/gcc/config-{tuple}. |
| std::string basePath = "/usr/lib/gcc/" + ActiveVersion.first.str() + "/" |
| + ActiveVersion.second.str(); |
| GentooScanPaths.push_back(StringRef(basePath)); |
| |
| // Scan all paths for GCC libraries. |
| for (const auto &GentooScanPath : GentooScanPaths) { |
| std::string GentooPath = D.SysRoot + std::string(GentooScanPath); |
| if (D.getVFS().exists(GentooPath + "/crtbegin.o")) { |
| if (!ScanGCCForMultilibs(TargetTriple, Args, GentooPath, |
| NeedsBiarchSuffix)) |
| continue; |
| |
| Version = GCCVersion::Parse(ActiveVersion.second); |
| GCCInstallPath = GentooPath; |
| GCCParentLibPath = GentooPath + std::string("/../../.."); |
| GCCTriple.setTriple(ActiveVersion.first); |
| IsValid = true; |
| return true; |
| } |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple, |
| const ArgList &Args) |
| : ToolChain(D, Triple, Args), GCCInstallation(D), |
| CudaInstallation(D, Triple, Args), RocmInstallation(D, Triple, Args) { |
| getProgramPaths().push_back(getDriver().getInstalledDir()); |
| if (getDriver().getInstalledDir() != getDriver().Dir) |
| getProgramPaths().push_back(getDriver().Dir); |
| } |
| |
| Generic_GCC::~Generic_GCC() {} |
| |
| Tool *Generic_GCC::getTool(Action::ActionClass AC) const { |
| switch (AC) { |
| case Action::PreprocessJobClass: |
| if (!Preprocess) |
| Preprocess.reset(new clang::driver::tools::gcc::Preprocessor(*this)); |
| return Preprocess.get(); |
| case Action::CompileJobClass: |
| if (!Compile) |
| Compile.reset(new tools::gcc::Compiler(*this)); |
| return Compile.get(); |
| default: |
| return ToolChain::getTool(AC); |
| } |
| } |
| |
| Tool *Generic_GCC::buildAssembler() const { |
| return new tools::gnutools::Assembler(*this); |
| } |
| |
| Tool *Generic_GCC::buildLinker() const { return new tools::gcc::Linker(*this); } |
| |
| void Generic_GCC::printVerboseInfo(raw_ostream &OS) const { |
| // Print the information about how we detected the GCC installation. |
| GCCInstallation.print(OS); |
| CudaInstallation.print(OS); |
| RocmInstallation.print(OS); |
| } |
| |
| bool Generic_GCC::IsUnwindTablesDefault(const ArgList &Args) const { |
| switch (getArch()) { |
| case llvm::Triple::aarch64: |
| case llvm::Triple::ppc: |
| case llvm::Triple::ppcle: |
| case llvm::Triple::ppc64: |
| case llvm::Triple::ppc64le: |
| case llvm::Triple::x86: |
| case llvm::Triple::x86_64: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| bool Generic_GCC::isPICDefault() const { |
| switch (getArch()) { |
| case llvm::Triple::x86_64: |
| return getTriple().isOSWindows(); |
| case llvm::Triple::mips64: |
| case llvm::Triple::mips64el: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| bool Generic_GCC::isPIEDefault(const llvm::opt::ArgList &Args) const { |
| return false; |
| } |
| |
| bool Generic_GCC::isPICDefaultForced() const { |
| return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows(); |
| } |
| |
| bool Generic_GCC::IsIntegratedAssemblerDefault() const { |
| switch (getTriple().getArch()) { |
| case llvm::Triple::x86: |
| case llvm::Triple::x86_64: |
| case llvm::Triple::aarch64: |
| case llvm::Triple::aarch64_be: |
| case llvm::Triple::arm: |
| case llvm::Triple::armeb: |
| case llvm::Triple::avr: |
| case llvm::Triple::bpfel: |
| case llvm::Triple::bpfeb: |
| case llvm::Triple::thumb: |
| case llvm::Triple::thumbeb: |
| case llvm::Triple::ppc: |
| case llvm::Triple::ppcle: |
| case llvm::Triple::ppc64: |
| case llvm::Triple::ppc64le: |
| case llvm::Triple::riscv32: |
| case llvm::Triple::riscv64: |
| case llvm::Triple::systemz: |
| case llvm::Triple::mips: |
| case llvm::Triple::mipsel: |
| case llvm::Triple::mips64: |
| case llvm::Triple::mips64el: |
| case llvm::Triple::msp430: |
| case llvm::Triple::m68k: |
| return true; |
| case llvm::Triple::sparc: |
| case llvm::Triple::sparcel: |
| case llvm::Triple::sparcv9: |
| if (getTriple().isOSFreeBSD() || getTriple().isOSOpenBSD() || |
| getTriple().isOSSolaris()) |
| return true; |
| return false; |
| default: |
| return false; |
| } |
| } |
| |
| void Generic_GCC::PushPPaths(ToolChain::path_list &PPaths) { |
| // Cross-compiling binutils and GCC installations (vanilla and openSUSE at |
| // least) put various tools in a triple-prefixed directory off of the parent |
| // of the GCC installation. We use the GCC triple here to ensure that we end |
| // up with tools that support the same amount of cross compiling as the |
| // detected GCC installation. For example, if we find a GCC installation |
| // targeting x86_64, but it is a bi-arch GCC installation, it can also be |
| // used to target i386. |
| if (GCCInstallation.isValid()) { |
| PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" + |
| GCCInstallation.getTriple().str() + "/bin") |
| .str()); |
| } |
| } |
| |
| void Generic_GCC::AddMultilibPaths(const Driver &D, |
| const std::string &SysRoot, |
| const std::string &OSLibDir, |
| const std::string &MultiarchTriple, |
| path_list &Paths) { |
| // Add the multilib suffixed paths where they are available. |
| if (GCCInstallation.isValid()) { |
| const llvm::Triple &GCCTriple = GCCInstallation.getTriple(); |
| const std::string &LibPath = |
| std::string(GCCInstallation.getParentLibPath()); |
| |
| // Sourcery CodeBench MIPS toolchain holds some libraries under |
| // a biarch-like suffix of the GCC installation. |
| if (const auto &PathsCallback = Multilibs.filePathsCallback()) |
| for (const auto &Path : PathsCallback(SelectedMultilib)) |
| addPathIfExists(D, GCCInstallation.getInstallPath() + Path, Paths); |
| |
| // Add lib/gcc/$triple/$version, with an optional /multilib suffix. |
| addPathIfExists( |
| D, GCCInstallation.getInstallPath() + SelectedMultilib.gccSuffix(), |
| Paths); |
| |
| // GCC cross compiling toolchains will install target libraries which ship |
| // as part of the toolchain under <prefix>/<triple>/<libdir> rather than as |
| // any part of the GCC installation in |
| // <prefix>/<libdir>/gcc/<triple>/<version>. This decision is somewhat |
| // debatable, but is the reality today. We need to search this tree even |
| // when we have a sysroot somewhere else. It is the responsibility of |
| // whomever is doing the cross build targeting a sysroot using a GCC |
| // installation that is *not* within the system root to ensure two things: |
| // |
| // 1) Any DSOs that are linked in from this tree or from the install path |
| // above must be present on the system root and found via an |
| // appropriate rpath. |
| // 2) There must not be libraries installed into |
| // <prefix>/<triple>/<libdir> unless they should be preferred over |
| // those within the system root. |
| // |
| // Note that this matches the GCC behavior. See the below comment for where |
| // Clang diverges from GCC's behavior. |
| addPathIfExists(D, |
| LibPath + "/../" + GCCTriple.str() + "/lib/../" + OSLibDir + |
| SelectedMultilib.osSuffix(), |
| Paths); |
| |
| // If the GCC installation we found is inside of the sysroot, we want to |
| // prefer libraries installed in the parent prefix of the GCC installation. |
| // It is important to *not* use these paths when the GCC installation is |
| // outside of the system root as that can pick up unintended libraries. |
| // This usually happens when there is an external cross compiler on the |
| // host system, and a more minimal sysroot available that is the target of |
| // the cross. Note that GCC does include some of these directories in some |
| // configurations but this seems somewhere between questionable and simply |
| // a bug. |
| if (StringRef(LibPath).startswith(SysRoot)) |
| addPathIfExists(D, LibPath + "/../" + OSLibDir, Paths); |
| } |
| } |
| |
| void Generic_GCC::AddMultiarchPaths(const Driver &D, |
| const std::string &SysRoot, |
| const std::string &OSLibDir, |
| path_list &Paths) { |
| if (GCCInstallation.isValid()) { |
| const std::string &LibPath = |
| std::string(GCCInstallation.getParentLibPath()); |
| const llvm::Triple &GCCTriple = GCCInstallation.getTriple(); |
| const Multilib &Multilib = GCCInstallation.getMultilib(); |
| addPathIfExists( |
| D, LibPath + "/../" + GCCTriple.str() + "/lib" + Multilib.osSuffix(), |
| Paths); |
| } |
| } |
| |
| void Generic_GCC::AddMultilibIncludeArgs(const ArgList &DriverArgs, |
| ArgStringList &CC1Args) const { |
| // Add include directories specific to the selected multilib set and multilib. |
| if (!GCCInstallation.isValid()) |
| return; |
| // gcc TOOL_INCLUDE_DIR. |
| const llvm::Triple &GCCTriple = GCCInstallation.getTriple(); |
| std::string LibPath(GCCInstallation.getParentLibPath()); |
| addSystemInclude(DriverArgs, CC1Args, |
| Twine(LibPath) + "/../" + GCCTriple.str() + "/include"); |
| |
| const auto &Callback = Multilibs.includeDirsCallback(); |
| if (Callback) { |
| for (const auto &Path : Callback(GCCInstallation.getMultilib())) |
| addExternCSystemIncludeIfExists(DriverArgs, CC1Args, |
| GCCInstallation.getInstallPath() + Path); |
| } |
| } |
| |
| void Generic_GCC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, |
| ArgStringList &CC1Args) const { |
| if (DriverArgs.hasArg(options::OPT_nostdinc, options::OPT_nostdincxx, |
| options::OPT_nostdlibinc)) |
| return; |
| |
| switch (GetCXXStdlibType(DriverArgs)) { |
| case ToolChain::CST_Libcxx: |
| addLibCxxIncludePaths(DriverArgs, CC1Args); |
| break; |
| |
| case ToolChain::CST_Libstdcxx: |
| addLibStdCxxIncludePaths(DriverArgs, CC1Args); |
| break; |
| } |
| } |
| |
| void |
| Generic_GCC::addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, |
| llvm::opt::ArgStringList &CC1Args) const { |
| const Driver &D = getDriver(); |
| std::string SysRoot = computeSysRoot(); |
| std::string Target = getTripleString(); |
| |
| auto AddIncludePath = [&](std::string Path) { |
| std::string Version = detectLibcxxVersion(Path); |
| if (Version.empty()) |
| return false; |
| |
| // First add the per-target include path if it exists. |
| std::string TargetDir = Path + "/" + Target + "/c++/" + Version; |
| if (D.getVFS().exists(TargetDir)) |
| addSystemInclude(DriverArgs, CC1Args, TargetDir); |
| |
| // Second add the generic one. |
| addSystemInclude(DriverArgs, CC1Args, Path + "/c++/" + Version); |
| return true; |
| }; |
| |
| // Android never uses the libc++ headers installed alongside the toolchain, |
| // which are generally incompatible with the NDK libraries anyway. |
| if (!getTriple().isAndroid()) |
| if (AddIncludePath(getDriver().Dir + "/../include")) |
| return; |
| // If this is a development, non-installed, clang, libcxx will |
| // not be found at ../include/c++ but it likely to be found at |
| // one of the following two locations: |
| if (AddIncludePath(SysRoot + "/usr/local/include")) |
| return; |
| if (AddIncludePath(SysRoot + "/usr/include")) |
| return; |
| } |
| |
| bool Generic_GCC::addLibStdCXXIncludePaths(Twine IncludeDir, StringRef Triple, |
| Twine IncludeSuffix, |
| const llvm::opt::ArgList &DriverArgs, |
| llvm::opt::ArgStringList &CC1Args, |
| bool DetectDebian) const { |
| if (!getVFS().exists(IncludeDir)) |
| return false; |
| |
| // Debian native gcc uses g++-multiarch-incdir.diff which uses |
| // include/x86_64-linux-gnu/c++/10$IncludeSuffix instead of |
| // include/c++/10/x86_64-linux-gnu$IncludeSuffix. |
| std::string Dir = IncludeDir.str(); |
| StringRef Include = |
| llvm::sys::path::parent_path(llvm::sys::path::parent_path(Dir)); |
| std::string Path = |
| (Include + "/" + Triple + Dir.substr(Include.size()) + IncludeSuffix) |
| .str(); |
| if (DetectDebian && !getVFS().exists(Path)) |
| return false; |
| |
| // GPLUSPLUS_INCLUDE_DIR |
| addSystemInclude(DriverArgs, CC1Args, IncludeDir); |
| // GPLUSPLUS_TOOL_INCLUDE_DIR. If Triple is not empty, add a target-dependent |
| // include directory. |
| if (DetectDebian) |
| addSystemInclude(DriverArgs, CC1Args, Path); |
| else if (!Triple.empty()) |
| addSystemInclude(DriverArgs, CC1Args, |
| IncludeDir + "/" + Triple + IncludeSuffix); |
| // GPLUSPLUS_BACKWARD_INCLUDE_DIR |
| addSystemInclude(DriverArgs, CC1Args, IncludeDir + "/backward"); |
| return true; |
| } |
| |
| bool Generic_GCC::addGCCLibStdCxxIncludePaths( |
| const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, |
| StringRef DebianMultiarch) const { |
| assert(GCCInstallation.isValid()); |
| |
| // By default, look for the C++ headers in an include directory adjacent to |
| // the lib directory of the GCC installation. Note that this is expect to be |
| // equivalent to '/usr/include/c++/X.Y' in almost all cases. |
| StringRef LibDir = GCCInstallation.getParentLibPath(); |
| StringRef InstallDir = GCCInstallation.getInstallPath(); |
| StringRef TripleStr = GCCInstallation.getTriple().str(); |
| const Multilib &Multilib = GCCInstallation.getMultilib(); |
| const GCCVersion &Version = GCCInstallation.getVersion(); |
| |
| // Try /../$triple/include/c++/$version (gcc --print-multiarch is not empty). |
| if (addLibStdCXXIncludePaths( |
| LibDir.str() + "/../" + TripleStr + "/include/c++/" + Version.Text, |
| TripleStr, Multilib.includeSuffix(), DriverArgs, CC1Args)) |
| return true; |
| |
| // Detect Debian g++-multiarch-incdir.diff. |
| if (addLibStdCXXIncludePaths(LibDir.str() + "/../include/c++/" + Version.Text, |
| DebianMultiarch, Multilib.includeSuffix(), |
| DriverArgs, CC1Args, /*Debian=*/true)) |
| return true; |
| |
| // Try /../include/c++/$version (gcc --print-multiarch is empty). |
| if (addLibStdCXXIncludePaths(LibDir.str() + "/../include/c++/" + Version.Text, |
| TripleStr, Multilib.includeSuffix(), DriverArgs, |
| CC1Args)) |
| return true; |
| |
| // Otherwise, fall back on a bunch of options which don't use multiarch |
| // layouts for simplicity. |
| const std::string LibStdCXXIncludePathCandidates[] = { |
| // Gentoo is weird and places its headers inside the GCC install, |
| // so if the first attempt to find the headers fails, try these patterns. |
| InstallDir.str() + "/include/g++-v" + Version.Text, |
| InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." + |
| Version.MinorStr, |
| InstallDir.str() + "/include/g++-v" + Version.MajorStr, |
| }; |
| |
| for (const auto &IncludePath : LibStdCXXIncludePathCandidates) { |
| if (addLibStdCXXIncludePaths(IncludePath, TripleStr, |
| Multilib.includeSuffix(), DriverArgs, CC1Args)) |
| return true; |
| } |
| return false; |
| } |
| |
| void |
| Generic_GCC::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, |
| llvm::opt::ArgStringList &CC1Args) const { |
| if (GCCInstallation.isValid()) { |
| addGCCLibStdCxxIncludePaths(DriverArgs, CC1Args, |
| GCCInstallation.getTriple().str()); |
| } |
| } |
| |
| llvm::opt::DerivedArgList * |
| Generic_GCC::TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef, |
| Action::OffloadKind DeviceOffloadKind) const { |
| |
| // If this tool chain is used for an OpenMP offloading device we have to make |
| // sure we always generate a shared library regardless of the commands the |
| // user passed to the host. This is required because the runtime library |
| // is required to load the device image dynamically at run time. |
| if (DeviceOffloadKind == Action::OFK_OpenMP) { |
| DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs()); |
| const OptTable &Opts = getDriver().getOpts(); |
| |
| // Request the shared library. Given that these options are decided |
| // implicitly, they do not refer to any base argument. |
| DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_shared)); |
| DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_fPIC)); |
| |
| // Filter all the arguments we don't care passing to the offloading |
| // toolchain as they can mess up with the creation of a shared library. |
| for (auto *A : Args) { |
| switch ((options::ID)A->getOption().getID()) { |
| default: |
| DAL->append(A); |
| break; |
| case options::OPT_shared: |
| case options::OPT_dynamic: |
| case options::OPT_static: |
| case options::OPT_fPIC: |
| case options::OPT_fno_PIC: |
| case options::OPT_fpic: |
| case options::OPT_fno_pic: |
| case options::OPT_fPIE: |
| case options::OPT_fno_PIE: |
| case options::OPT_fpie: |
| case options::OPT_fno_pie: |
| break; |
| } |
| } |
| return DAL; |
| } |
| return nullptr; |
| } |
| |
| void Generic_ELF::anchor() {} |
| |
| void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs, |
| ArgStringList &CC1Args, |
| Action::OffloadKind) const { |
| if (!DriverArgs.hasFlag(options::OPT_fuse_init_array, |
| options::OPT_fno_use_init_array, true)) |
| CC1Args.push_back("-fno-use-init-array"); |
| } |
