| //===--- NetBSD.cpp - NetBSD ToolChain Implementations ----------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "NetBSD.h" |
| #include "Arch/ARM.h" |
| #include "Arch/Mips.h" |
| #include "Arch/Sparc.h" |
| #include "CommonArgs.h" |
| #include "clang/Driver/Compilation.h" |
| #include "clang/Driver/Driver.h" |
| #include "clang/Driver/Options.h" |
| #include "clang/Driver/SanitizerArgs.h" |
| #include "llvm/Option/ArgList.h" |
| |
| using namespace clang::driver; |
| using namespace clang::driver::tools; |
| using namespace clang::driver::toolchains; |
| using namespace clang; |
| using namespace llvm::opt; |
| |
| void netbsd::Assembler::ConstructJob(Compilation &C, const JobAction &JA, |
| const InputInfo &Output, |
| const InputInfoList &Inputs, |
| const ArgList &Args, |
| const char *LinkingOutput) const { |
| claimNoWarnArgs(Args); |
| ArgStringList CmdArgs; |
| |
| // GNU as needs different flags for creating the correct output format |
| // on architectures with different ABIs or optional feature sets. |
| switch (getToolChain().getArch()) { |
| case llvm::Triple::x86: |
| CmdArgs.push_back("--32"); |
| break; |
| case llvm::Triple::arm: |
| case llvm::Triple::armeb: |
| case llvm::Triple::thumb: |
| case llvm::Triple::thumbeb: { |
| StringRef MArch, MCPU; |
| arm::getARMArchCPUFromArgs(Args, MArch, MCPU, /*FromAs*/ true); |
| std::string Arch = |
| arm::getARMTargetCPU(MCPU, MArch, getToolChain().getTriple()); |
| CmdArgs.push_back(Args.MakeArgString("-mcpu=" + Arch)); |
| break; |
| } |
| |
| case llvm::Triple::mips: |
| case llvm::Triple::mipsel: |
| case llvm::Triple::mips64: |
| case llvm::Triple::mips64el: { |
| StringRef CPUName; |
| StringRef ABIName; |
| mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName); |
| |
| CmdArgs.push_back("-march"); |
| CmdArgs.push_back(CPUName.data()); |
| |
| CmdArgs.push_back("-mabi"); |
| CmdArgs.push_back(mips::getGnuCompatibleMipsABIName(ABIName).data()); |
| |
| if (getToolChain().getTriple().isLittleEndian()) |
| CmdArgs.push_back("-EL"); |
| else |
| CmdArgs.push_back("-EB"); |
| |
| AddAssemblerKPIC(getToolChain(), Args, CmdArgs); |
| break; |
| } |
| |
| case llvm::Triple::sparc: |
| case llvm::Triple::sparcel: { |
| CmdArgs.push_back("-32"); |
| std::string CPU = getCPUName(Args, getToolChain().getTriple()); |
| CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); |
| AddAssemblerKPIC(getToolChain(), Args, CmdArgs); |
| break; |
| } |
| |
| case llvm::Triple::sparcv9: { |
| CmdArgs.push_back("-64"); |
| std::string CPU = getCPUName(Args, getToolChain().getTriple()); |
| CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); |
| AddAssemblerKPIC(getToolChain(), Args, CmdArgs); |
| break; |
| } |
| |
| default: |
| break; |
| } |
| |
| Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); |
| |
| CmdArgs.push_back("-o"); |
| CmdArgs.push_back(Output.getFilename()); |
| |
| for (const auto &II : Inputs) |
| CmdArgs.push_back(II.getFilename()); |
| |
| const char *Exec = Args.MakeArgString((getToolChain().GetProgramPath("as"))); |
| C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); |
| } |
| |
| void netbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA, |
| const InputInfo &Output, |
| const InputInfoList &Inputs, |
| const ArgList &Args, |
| const char *LinkingOutput) const { |
| const toolchains::NetBSD &ToolChain = |
| static_cast<const toolchains::NetBSD &>(getToolChain()); |
| const Driver &D = ToolChain.getDriver(); |
| ArgStringList CmdArgs; |
| |
| if (!D.SysRoot.empty()) |
| CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); |
| |
| CmdArgs.push_back("--eh-frame-hdr"); |
| if (Args.hasArg(options::OPT_static)) { |
| CmdArgs.push_back("-Bstatic"); |
| if (Args.hasArg(options::OPT_pie)) { |
| Args.AddAllArgs(CmdArgs, options::OPT_pie); |
| CmdArgs.push_back("--no-dynamic-linker"); |
| } |
| } else { |
| if (Args.hasArg(options::OPT_rdynamic)) |
| CmdArgs.push_back("-export-dynamic"); |
| if (Args.hasArg(options::OPT_shared)) { |
| CmdArgs.push_back("-Bshareable"); |
| } else { |
| Args.AddAllArgs(CmdArgs, options::OPT_pie); |
| CmdArgs.push_back("-dynamic-linker"); |
| CmdArgs.push_back("/libexec/ld.elf_so"); |
| } |
| } |
| |
| // Many NetBSD architectures support more than one ABI. |
| // Determine the correct emulation for ld. |
| switch (ToolChain.getArch()) { |
| case llvm::Triple::x86: |
| CmdArgs.push_back("-m"); |
| CmdArgs.push_back("elf_i386"); |
| break; |
| case llvm::Triple::arm: |
| case llvm::Triple::thumb: |
| CmdArgs.push_back("-m"); |
| switch (ToolChain.getTriple().getEnvironment()) { |
| case llvm::Triple::EABI: |
| case llvm::Triple::GNUEABI: |
| CmdArgs.push_back("armelf_nbsd_eabi"); |
| break; |
| case llvm::Triple::EABIHF: |
| case llvm::Triple::GNUEABIHF: |
| CmdArgs.push_back("armelf_nbsd_eabihf"); |
| break; |
| default: |
| CmdArgs.push_back("armelf_nbsd"); |
| break; |
| } |
| break; |
| case llvm::Triple::armeb: |
| case llvm::Triple::thumbeb: |
| arm::appendEBLinkFlags(Args, CmdArgs, ToolChain.getEffectiveTriple()); |
| CmdArgs.push_back("-m"); |
| switch (ToolChain.getTriple().getEnvironment()) { |
| case llvm::Triple::EABI: |
| case llvm::Triple::GNUEABI: |
| CmdArgs.push_back("armelfb_nbsd_eabi"); |
| break; |
| case llvm::Triple::EABIHF: |
| case llvm::Triple::GNUEABIHF: |
| CmdArgs.push_back("armelfb_nbsd_eabihf"); |
| break; |
| default: |
| CmdArgs.push_back("armelfb_nbsd"); |
| break; |
| } |
| break; |
| case llvm::Triple::mips64: |
| case llvm::Triple::mips64el: |
| if (mips::hasMipsAbiArg(Args, "32")) { |
| CmdArgs.push_back("-m"); |
| if (ToolChain.getArch() == llvm::Triple::mips64) |
| CmdArgs.push_back("elf32btsmip"); |
| else |
| CmdArgs.push_back("elf32ltsmip"); |
| } else if (mips::hasMipsAbiArg(Args, "64")) { |
| CmdArgs.push_back("-m"); |
| if (ToolChain.getArch() == llvm::Triple::mips64) |
| CmdArgs.push_back("elf64btsmip"); |
| else |
| CmdArgs.push_back("elf64ltsmip"); |
| } |
| break; |
| case llvm::Triple::ppc: |
| CmdArgs.push_back("-m"); |
| CmdArgs.push_back("elf32ppc_nbsd"); |
| break; |
| |
| case llvm::Triple::ppc64: |
| case llvm::Triple::ppc64le: |
| CmdArgs.push_back("-m"); |
| CmdArgs.push_back("elf64ppc"); |
| break; |
| |
| case llvm::Triple::sparc: |
| CmdArgs.push_back("-m"); |
| CmdArgs.push_back("elf32_sparc"); |
| break; |
| |
| case llvm::Triple::sparcv9: |
| CmdArgs.push_back("-m"); |
| CmdArgs.push_back("elf64_sparc"); |
| break; |
| |
| default: |
| break; |
| } |
| |
| if (Output.isFilename()) { |
| CmdArgs.push_back("-o"); |
| CmdArgs.push_back(Output.getFilename()); |
| } else { |
| assert(Output.isNothing() && "Invalid output."); |
| } |
| |
| if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { |
| if (!Args.hasArg(options::OPT_shared)) { |
| CmdArgs.push_back( |
| Args.MakeArgString(ToolChain.GetFilePath("crt0.o"))); |
| } |
| CmdArgs.push_back( |
| Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); |
| if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) { |
| CmdArgs.push_back( |
| Args.MakeArgString(ToolChain.GetFilePath("crtbeginS.o"))); |
| } else { |
| CmdArgs.push_back( |
| Args.MakeArgString(ToolChain.GetFilePath("crtbegin.o"))); |
| } |
| } |
| |
| Args.AddAllArgs(CmdArgs, options::OPT_L); |
| Args.AddAllArgs(CmdArgs, options::OPT_T_Group); |
| Args.AddAllArgs(CmdArgs, options::OPT_e); |
| Args.AddAllArgs(CmdArgs, options::OPT_s); |
| Args.AddAllArgs(CmdArgs, options::OPT_t); |
| Args.AddAllArgs(CmdArgs, options::OPT_Z_Flag); |
| Args.AddAllArgs(CmdArgs, options::OPT_r); |
| |
| bool NeedsSanitizerDeps = addSanitizerRuntimes(getToolChain(), Args, CmdArgs); |
| bool NeedsXRayDeps = addXRayRuntime(ToolChain, Args, CmdArgs); |
| AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); |
| |
| unsigned Major, Minor, Micro; |
| ToolChain.getTriple().getOSVersion(Major, Minor, Micro); |
| bool useLibgcc = true; |
| if (Major >= 7 || Major == 0) { |
| switch (ToolChain.getArch()) { |
| case llvm::Triple::aarch64: |
| case llvm::Triple::aarch64_be: |
| case llvm::Triple::arm: |
| case llvm::Triple::armeb: |
| case llvm::Triple::thumb: |
| case llvm::Triple::thumbeb: |
| case llvm::Triple::ppc: |
| case llvm::Triple::ppc64: |
| case llvm::Triple::ppc64le: |
| case llvm::Triple::sparc: |
| case llvm::Triple::sparcv9: |
| case llvm::Triple::x86: |
| case llvm::Triple::x86_64: |
| useLibgcc = false; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { |
| addOpenMPRuntime(CmdArgs, getToolChain(), Args); |
| if (D.CCCIsCXX()) { |
| if (ToolChain.ShouldLinkCXXStdlib(Args)) |
| ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); |
| CmdArgs.push_back("-lm"); |
| } |
| if (NeedsSanitizerDeps) |
| linkSanitizerRuntimeDeps(getToolChain(), CmdArgs); |
| if (NeedsXRayDeps) |
| linkXRayRuntimeDeps(ToolChain, CmdArgs); |
| if (Args.hasArg(options::OPT_pthread)) |
| CmdArgs.push_back("-lpthread"); |
| CmdArgs.push_back("-lc"); |
| |
| if (useLibgcc) { |
| if (Args.hasArg(options::OPT_static)) { |
| // libgcc_eh depends on libc, so resolve as much as possible, |
| // pull in any new requirements from libc and then get the rest |
| // of libgcc. |
| CmdArgs.push_back("-lgcc_eh"); |
| CmdArgs.push_back("-lc"); |
| CmdArgs.push_back("-lgcc"); |
| } else { |
| CmdArgs.push_back("-lgcc"); |
| CmdArgs.push_back("--as-needed"); |
| CmdArgs.push_back("-lgcc_s"); |
| CmdArgs.push_back("--no-as-needed"); |
| } |
| } |
| } |
| |
| if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { |
| if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) |
| CmdArgs.push_back( |
| Args.MakeArgString(ToolChain.GetFilePath("crtendS.o"))); |
| else |
| CmdArgs.push_back( |
| Args.MakeArgString(ToolChain.GetFilePath("crtend.o"))); |
| CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); |
| } |
| |
| ToolChain.addProfileRTLibs(Args, CmdArgs); |
| |
| const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); |
| C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); |
| } |
| |
| /// NetBSD - NetBSD tool chain which can call as(1) and ld(1) directly. |
| |
| NetBSD::NetBSD(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) |
| : Generic_ELF(D, Triple, Args) { |
| if (!Args.hasArg(options::OPT_nostdlib)) { |
| // When targeting a 32-bit platform, try the special directory used on |
| // 64-bit hosts, and only fall back to the main library directory if that |
| // doesn't work. |
| // FIXME: It'd be nicer to test if this directory exists, but I'm not sure |
| // what all logic is needed to emulate the '=' prefix here. |
| switch (Triple.getArch()) { |
| case llvm::Triple::x86: |
| getFilePaths().push_back("=/usr/lib/i386"); |
| break; |
| case llvm::Triple::arm: |
| case llvm::Triple::armeb: |
| case llvm::Triple::thumb: |
| case llvm::Triple::thumbeb: |
| switch (Triple.getEnvironment()) { |
| case llvm::Triple::EABI: |
| case llvm::Triple::GNUEABI: |
| getFilePaths().push_back("=/usr/lib/eabi"); |
| break; |
| case llvm::Triple::EABIHF: |
| case llvm::Triple::GNUEABIHF: |
| getFilePaths().push_back("=/usr/lib/eabihf"); |
| break; |
| default: |
| getFilePaths().push_back("=/usr/lib/oabi"); |
| break; |
| } |
| break; |
| case llvm::Triple::mips64: |
| case llvm::Triple::mips64el: |
| if (tools::mips::hasMipsAbiArg(Args, "o32")) |
| getFilePaths().push_back("=/usr/lib/o32"); |
| else if (tools::mips::hasMipsAbiArg(Args, "64")) |
| getFilePaths().push_back("=/usr/lib/64"); |
| break; |
| case llvm::Triple::ppc: |
| getFilePaths().push_back("=/usr/lib/powerpc"); |
| break; |
| case llvm::Triple::sparc: |
| getFilePaths().push_back("=/usr/lib/sparc"); |
| break; |
| default: |
| break; |
| } |
| |
| getFilePaths().push_back("=/usr/lib"); |
| } |
| } |
| |
| Tool *NetBSD::buildAssembler() const { |
| return new tools::netbsd::Assembler(*this); |
| } |
| |
| Tool *NetBSD::buildLinker() const { return new tools::netbsd::Linker(*this); } |
| |
| ToolChain::CXXStdlibType NetBSD::GetDefaultCXXStdlibType() const { |
| unsigned Major, Minor, Micro; |
| getTriple().getOSVersion(Major, Minor, Micro); |
| if (Major >= 7 || Major == 0) { |
| switch (getArch()) { |
| case llvm::Triple::aarch64: |
| case llvm::Triple::aarch64_be: |
| case llvm::Triple::arm: |
| case llvm::Triple::armeb: |
| case llvm::Triple::thumb: |
| case llvm::Triple::thumbeb: |
| case llvm::Triple::ppc: |
| case llvm::Triple::ppc64: |
| case llvm::Triple::ppc64le: |
| case llvm::Triple::sparc: |
| case llvm::Triple::sparcv9: |
| case llvm::Triple::x86: |
| case llvm::Triple::x86_64: |
| return ToolChain::CST_Libcxx; |
| default: |
| break; |
| } |
| } |
| return ToolChain::CST_Libstdcxx; |
| } |
| |
| void NetBSD::addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, |
| llvm::opt::ArgStringList &CC1Args) const { |
| addSystemInclude(DriverArgs, CC1Args, |
| getDriver().SysRoot + "/usr/include/c++/"); |
| } |
| |
| void NetBSD::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, |
| llvm::opt::ArgStringList &CC1Args) const { |
| addLibStdCXXIncludePaths(getDriver().SysRoot, "/usr/include/g++", "", "", "", |
| "", DriverArgs, CC1Args); |
| } |
| |
| llvm::ExceptionHandling NetBSD::GetExceptionModel(const ArgList &Args) const { |
| // NetBSD uses Dwarf exceptions on ARM. |
| llvm::Triple::ArchType TArch = getTriple().getArch(); |
| if (TArch == llvm::Triple::arm || TArch == llvm::Triple::armeb || |
| TArch == llvm::Triple::thumb || TArch == llvm::Triple::thumbeb) |
| return llvm::ExceptionHandling::DwarfCFI; |
| return llvm::ExceptionHandling::None; |
| } |
| |
| SanitizerMask NetBSD::getSupportedSanitizers() const { |
| const bool IsX86 = getTriple().getArch() == llvm::Triple::x86; |
| const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64; |
| SanitizerMask Res = ToolChain::getSupportedSanitizers(); |
| if (IsX86 || IsX86_64) { |
| Res |= SanitizerKind::Address; |
| Res |= SanitizerKind::Function; |
| Res |= SanitizerKind::Leak; |
| Res |= SanitizerKind::SafeStack; |
| Res |= SanitizerKind::Scudo; |
| Res |= SanitizerKind::Vptr; |
| } |
| if (IsX86_64) { |
| Res |= SanitizerKind::Efficiency; |
| Res |= SanitizerKind::Fuzzer; |
| Res |= SanitizerKind::FuzzerNoLink; |
| Res |= SanitizerKind::KernelAddress; |
| Res |= SanitizerKind::Memory; |
| Res |= SanitizerKind::Thread; |
| } |
| return Res; |
| } |
