forked from OSchip/llvm-project
1012 lines
34 KiB
C++
1012 lines
34 KiB
C++
//===- ToolChain.cpp - Collections of tools for one platform --------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Driver/ToolChain.h"
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#include "InputInfo.h"
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#include "ToolChains/Arch/ARM.h"
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#include "ToolChains/Clang.h"
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#include "clang/Basic/ObjCRuntime.h"
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#include "clang/Basic/Sanitizers.h"
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#include "clang/Config/config.h"
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#include "clang/Driver/Action.h"
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#include "clang/Driver/Driver.h"
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#include "clang/Driver/DriverDiagnostic.h"
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#include "clang/Driver/Job.h"
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#include "clang/Driver/Options.h"
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#include "clang/Driver/SanitizerArgs.h"
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#include "clang/Driver/XRayArgs.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/Config/llvm-config.h"
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#include "llvm/MC/MCTargetOptions.h"
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#include "llvm/Option/Arg.h"
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#include "llvm/Option/ArgList.h"
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#include "llvm/Option/OptTable.h"
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#include "llvm/Option/Option.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/TargetParser.h"
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#include "llvm/Support/TargetRegistry.h"
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#include "llvm/Support/VersionTuple.h"
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#include "llvm/Support/VirtualFileSystem.h"
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#include <cassert>
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#include <cstddef>
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#include <cstring>
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#include <string>
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using namespace clang;
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using namespace driver;
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using namespace tools;
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using namespace llvm;
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using namespace llvm::opt;
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static llvm::opt::Arg *GetRTTIArgument(const ArgList &Args) {
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return Args.getLastArg(options::OPT_mkernel, options::OPT_fapple_kext,
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options::OPT_fno_rtti, options::OPT_frtti);
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}
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static ToolChain::RTTIMode CalculateRTTIMode(const ArgList &Args,
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const llvm::Triple &Triple,
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const Arg *CachedRTTIArg) {
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// Explicit rtti/no-rtti args
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if (CachedRTTIArg) {
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if (CachedRTTIArg->getOption().matches(options::OPT_frtti))
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return ToolChain::RM_Enabled;
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else
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return ToolChain::RM_Disabled;
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}
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// -frtti is default, except for the PS4 CPU.
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return (Triple.isPS4CPU()) ? ToolChain::RM_Disabled : ToolChain::RM_Enabled;
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}
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ToolChain::ToolChain(const Driver &D, const llvm::Triple &T,
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const ArgList &Args)
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: D(D), Triple(T), Args(Args), CachedRTTIArg(GetRTTIArgument(Args)),
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CachedRTTIMode(CalculateRTTIMode(Args, Triple, CachedRTTIArg)) {
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SmallString<128> P;
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P.assign(D.ResourceDir);
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llvm::sys::path::append(P, D.getTargetTriple(), "lib");
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if (getVFS().exists(P))
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getLibraryPaths().push_back(P.str());
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P.assign(D.ResourceDir);
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llvm::sys::path::append(P, Triple.str(), "lib");
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if (getVFS().exists(P))
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getLibraryPaths().push_back(P.str());
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std::string CandidateLibPath = getArchSpecificLibPath();
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if (getVFS().exists(CandidateLibPath))
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getFilePaths().push_back(CandidateLibPath);
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}
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void ToolChain::setTripleEnvironment(llvm::Triple::EnvironmentType Env) {
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Triple.setEnvironment(Env);
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if (EffectiveTriple != llvm::Triple())
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EffectiveTriple.setEnvironment(Env);
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}
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ToolChain::~ToolChain() = default;
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llvm::vfs::FileSystem &ToolChain::getVFS() const {
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return getDriver().getVFS();
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}
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bool ToolChain::useIntegratedAs() const {
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return Args.hasFlag(options::OPT_fintegrated_as,
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options::OPT_fno_integrated_as,
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IsIntegratedAssemblerDefault());
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}
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bool ToolChain::useRelaxRelocations() const {
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return ENABLE_X86_RELAX_RELOCATIONS;
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}
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bool ToolChain::isNoExecStackDefault() const {
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return false;
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}
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const SanitizerArgs& ToolChain::getSanitizerArgs() const {
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if (!SanitizerArguments.get())
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SanitizerArguments.reset(new SanitizerArgs(*this, Args));
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return *SanitizerArguments.get();
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}
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const XRayArgs& ToolChain::getXRayArgs() const {
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if (!XRayArguments.get())
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XRayArguments.reset(new XRayArgs(*this, Args));
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return *XRayArguments.get();
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}
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namespace {
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struct DriverSuffix {
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const char *Suffix;
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const char *ModeFlag;
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};
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} // namespace
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static const DriverSuffix *FindDriverSuffix(StringRef ProgName, size_t &Pos) {
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// A list of known driver suffixes. Suffixes are compared against the
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// program name in order. If there is a match, the frontend type is updated as
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// necessary by applying the ModeFlag.
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static const DriverSuffix DriverSuffixes[] = {
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{"clang", nullptr},
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{"clang++", "--driver-mode=g++"},
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{"clang-c++", "--driver-mode=g++"},
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{"clang-cc", nullptr},
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{"clang-cpp", "--driver-mode=cpp"},
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{"clang-g++", "--driver-mode=g++"},
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{"clang-gcc", nullptr},
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{"clang-cl", "--driver-mode=cl"},
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{"cc", nullptr},
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{"cpp", "--driver-mode=cpp"},
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{"cl", "--driver-mode=cl"},
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{"++", "--driver-mode=g++"},
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};
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for (size_t i = 0; i < llvm::array_lengthof(DriverSuffixes); ++i) {
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StringRef Suffix(DriverSuffixes[i].Suffix);
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if (ProgName.endswith(Suffix)) {
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Pos = ProgName.size() - Suffix.size();
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return &DriverSuffixes[i];
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}
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}
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return nullptr;
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}
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/// Normalize the program name from argv[0] by stripping the file extension if
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/// present and lower-casing the string on Windows.
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static std::string normalizeProgramName(llvm::StringRef Argv0) {
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std::string ProgName = llvm::sys::path::stem(Argv0);
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#ifdef _WIN32
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// Transform to lowercase for case insensitive file systems.
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std::transform(ProgName.begin(), ProgName.end(), ProgName.begin(), ::tolower);
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#endif
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return ProgName;
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}
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static const DriverSuffix *parseDriverSuffix(StringRef ProgName, size_t &Pos) {
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// Try to infer frontend type and default target from the program name by
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// comparing it against DriverSuffixes in order.
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// If there is a match, the function tries to identify a target as prefix.
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// E.g. "x86_64-linux-clang" as interpreted as suffix "clang" with target
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// prefix "x86_64-linux". If such a target prefix is found, it may be
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// added via -target as implicit first argument.
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const DriverSuffix *DS = FindDriverSuffix(ProgName, Pos);
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if (!DS) {
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// Try again after stripping any trailing version number:
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// clang++3.5 -> clang++
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ProgName = ProgName.rtrim("0123456789.");
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DS = FindDriverSuffix(ProgName, Pos);
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}
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if (!DS) {
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// Try again after stripping trailing -component.
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// clang++-tot -> clang++
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ProgName = ProgName.slice(0, ProgName.rfind('-'));
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DS = FindDriverSuffix(ProgName, Pos);
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}
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return DS;
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}
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ParsedClangName
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ToolChain::getTargetAndModeFromProgramName(StringRef PN) {
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std::string ProgName = normalizeProgramName(PN);
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size_t SuffixPos;
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const DriverSuffix *DS = parseDriverSuffix(ProgName, SuffixPos);
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if (!DS)
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return {};
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size_t SuffixEnd = SuffixPos + strlen(DS->Suffix);
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size_t LastComponent = ProgName.rfind('-', SuffixPos);
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if (LastComponent == std::string::npos)
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return ParsedClangName(ProgName.substr(0, SuffixEnd), DS->ModeFlag);
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std::string ModeSuffix = ProgName.substr(LastComponent + 1,
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SuffixEnd - LastComponent - 1);
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// Infer target from the prefix.
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StringRef Prefix(ProgName);
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Prefix = Prefix.slice(0, LastComponent);
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std::string IgnoredError;
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bool IsRegistered = llvm::TargetRegistry::lookupTarget(Prefix, IgnoredError);
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return ParsedClangName{Prefix, ModeSuffix, DS->ModeFlag, IsRegistered};
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}
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StringRef ToolChain::getDefaultUniversalArchName() const {
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// In universal driver terms, the arch name accepted by -arch isn't exactly
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// the same as the ones that appear in the triple. Roughly speaking, this is
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// an inverse of the darwin::getArchTypeForDarwinArchName() function, but the
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// only interesting special case is powerpc.
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switch (Triple.getArch()) {
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case llvm::Triple::ppc:
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return "ppc";
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case llvm::Triple::ppc64:
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return "ppc64";
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case llvm::Triple::ppc64le:
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return "ppc64le";
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default:
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return Triple.getArchName();
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}
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}
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std::string ToolChain::getInputFilename(const InputInfo &Input) const {
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return Input.getFilename();
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}
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bool ToolChain::IsUnwindTablesDefault(const ArgList &Args) const {
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return false;
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}
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Tool *ToolChain::getClang() const {
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if (!Clang)
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Clang.reset(new tools::Clang(*this));
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return Clang.get();
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}
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Tool *ToolChain::buildAssembler() const {
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return new tools::ClangAs(*this);
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}
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Tool *ToolChain::buildLinker() const {
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llvm_unreachable("Linking is not supported by this toolchain");
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}
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Tool *ToolChain::getAssemble() const {
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if (!Assemble)
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Assemble.reset(buildAssembler());
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return Assemble.get();
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}
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Tool *ToolChain::getClangAs() const {
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if (!Assemble)
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Assemble.reset(new tools::ClangAs(*this));
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return Assemble.get();
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}
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Tool *ToolChain::getLink() const {
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if (!Link)
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Link.reset(buildLinker());
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return Link.get();
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}
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Tool *ToolChain::getOffloadBundler() const {
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if (!OffloadBundler)
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OffloadBundler.reset(new tools::OffloadBundler(*this));
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return OffloadBundler.get();
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}
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Tool *ToolChain::getTool(Action::ActionClass AC) const {
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switch (AC) {
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case Action::AssembleJobClass:
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return getAssemble();
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case Action::LinkJobClass:
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return getLink();
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case Action::InputClass:
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case Action::BindArchClass:
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case Action::OffloadClass:
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case Action::LipoJobClass:
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case Action::DsymutilJobClass:
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case Action::VerifyDebugInfoJobClass:
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llvm_unreachable("Invalid tool kind.");
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case Action::CompileJobClass:
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case Action::PrecompileJobClass:
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case Action::HeaderModulePrecompileJobClass:
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case Action::PreprocessJobClass:
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case Action::AnalyzeJobClass:
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case Action::MigrateJobClass:
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case Action::VerifyPCHJobClass:
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case Action::BackendJobClass:
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return getClang();
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case Action::OffloadBundlingJobClass:
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case Action::OffloadUnbundlingJobClass:
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return getOffloadBundler();
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}
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llvm_unreachable("Invalid tool kind.");
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}
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static StringRef getArchNameForCompilerRTLib(const ToolChain &TC,
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const ArgList &Args) {
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const llvm::Triple &Triple = TC.getTriple();
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bool IsWindows = Triple.isOSWindows();
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if (TC.getArch() == llvm::Triple::arm || TC.getArch() == llvm::Triple::armeb)
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return (arm::getARMFloatABI(TC, Args) == arm::FloatABI::Hard && !IsWindows)
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? "armhf"
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: "arm";
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// For historic reasons, Android library is using i686 instead of i386.
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if (TC.getArch() == llvm::Triple::x86 && Triple.isAndroid())
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return "i686";
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return llvm::Triple::getArchTypeName(TC.getArch());
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}
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StringRef ToolChain::getOSLibName() const {
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switch (Triple.getOS()) {
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case llvm::Triple::FreeBSD:
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return "freebsd";
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case llvm::Triple::NetBSD:
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return "netbsd";
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case llvm::Triple::OpenBSD:
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return "openbsd";
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case llvm::Triple::Solaris:
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return "sunos";
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default:
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return getOS();
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}
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}
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std::string ToolChain::getCompilerRTPath() const {
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SmallString<128> Path(getDriver().ResourceDir);
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if (Triple.isOSUnknown()) {
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llvm::sys::path::append(Path, "lib");
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} else {
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llvm::sys::path::append(Path, "lib", getOSLibName());
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}
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return Path.str();
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}
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std::string ToolChain::getCompilerRT(const ArgList &Args, StringRef Component,
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FileType Type) const {
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const llvm::Triple &TT = getTriple();
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bool IsITANMSVCWindows =
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TT.isWindowsMSVCEnvironment() || TT.isWindowsItaniumEnvironment();
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const char *Prefix =
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IsITANMSVCWindows || Type == ToolChain::FT_Object ? "" : "lib";
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const char *Suffix;
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switch (Type) {
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case ToolChain::FT_Object:
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Suffix = IsITANMSVCWindows ? ".obj" : ".o";
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break;
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case ToolChain::FT_Static:
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Suffix = IsITANMSVCWindows ? ".lib" : ".a";
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break;
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case ToolChain::FT_Shared:
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Suffix = Triple.isOSWindows()
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? (Triple.isWindowsGNUEnvironment() ? ".dll.a" : ".lib")
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: ".so";
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break;
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}
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for (const auto &LibPath : getLibraryPaths()) {
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SmallString<128> P(LibPath);
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llvm::sys::path::append(P, Prefix + Twine("clang_rt.") + Component + Suffix);
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if (getVFS().exists(P))
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return P.str();
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}
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StringRef Arch = getArchNameForCompilerRTLib(*this, Args);
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const char *Env = TT.isAndroid() ? "-android" : "";
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SmallString<128> Path(getCompilerRTPath());
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llvm::sys::path::append(Path, Prefix + Twine("clang_rt.") + Component + "-" +
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Arch + Env + Suffix);
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return Path.str();
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}
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const char *ToolChain::getCompilerRTArgString(const llvm::opt::ArgList &Args,
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StringRef Component,
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FileType Type) const {
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return Args.MakeArgString(getCompilerRT(Args, Component, Type));
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}
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std::string ToolChain::getArchSpecificLibPath() const {
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SmallString<128> Path(getDriver().ResourceDir);
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llvm::sys::path::append(Path, "lib", getOSLibName(),
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llvm::Triple::getArchTypeName(getArch()));
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return Path.str();
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}
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bool ToolChain::needsProfileRT(const ArgList &Args) {
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if (needsGCovInstrumentation(Args) ||
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Args.hasArg(options::OPT_fprofile_generate) ||
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Args.hasArg(options::OPT_fprofile_generate_EQ) ||
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Args.hasArg(options::OPT_fcs_profile_generate) ||
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Args.hasArg(options::OPT_fcs_profile_generate_EQ) ||
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Args.hasArg(options::OPT_fprofile_instr_generate) ||
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Args.hasArg(options::OPT_fprofile_instr_generate_EQ) ||
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Args.hasArg(options::OPT_fcreate_profile) ||
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Args.hasArg(options::OPT_forder_file_instrumentation))
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return true;
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return false;
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}
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bool ToolChain::needsGCovInstrumentation(const llvm::opt::ArgList &Args) {
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return Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs,
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false) ||
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Args.hasArg(options::OPT_coverage);
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}
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Tool *ToolChain::SelectTool(const JobAction &JA) const {
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if (getDriver().ShouldUseClangCompiler(JA)) return getClang();
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Action::ActionClass AC = JA.getKind();
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if (AC == Action::AssembleJobClass && useIntegratedAs())
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return getClangAs();
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return getTool(AC);
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}
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std::string ToolChain::GetFilePath(const char *Name) const {
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return D.GetFilePath(Name, *this);
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}
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std::string ToolChain::GetProgramPath(const char *Name) const {
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return D.GetProgramPath(Name, *this);
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}
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std::string ToolChain::GetLinkerPath() const {
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const Arg* A = Args.getLastArg(options::OPT_fuse_ld_EQ);
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StringRef UseLinker = A ? A->getValue() : CLANG_DEFAULT_LINKER;
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if (llvm::sys::path::is_absolute(UseLinker)) {
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// If we're passed what looks like an absolute path, don't attempt to
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// second-guess that.
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if (llvm::sys::fs::can_execute(UseLinker))
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return UseLinker;
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} else if (UseLinker.empty() || UseLinker == "ld") {
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// If we're passed -fuse-ld= with no argument, or with the argument ld,
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// then use whatever the default system linker is.
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return GetProgramPath(getDefaultLinker());
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} else {
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llvm::SmallString<8> LinkerName;
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if (Triple.isOSDarwin())
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LinkerName.append("ld64.");
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else
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LinkerName.append("ld.");
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LinkerName.append(UseLinker);
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std::string LinkerPath(GetProgramPath(LinkerName.c_str()));
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if (llvm::sys::fs::can_execute(LinkerPath))
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return LinkerPath;
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}
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if (A)
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getDriver().Diag(diag::err_drv_invalid_linker_name) << A->getAsString(Args);
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return GetProgramPath(getDefaultLinker());
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}
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types::ID ToolChain::LookupTypeForExtension(StringRef Ext) const {
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return types::lookupTypeForExtension(Ext);
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}
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|
|
bool ToolChain::HasNativeLLVMSupport() const {
|
|
return false;
|
|
}
|
|
|
|
bool ToolChain::isCrossCompiling() const {
|
|
llvm::Triple HostTriple(LLVM_HOST_TRIPLE);
|
|
switch (HostTriple.getArch()) {
|
|
// The A32/T32/T16 instruction sets are not separate architectures in this
|
|
// context.
|
|
case llvm::Triple::arm:
|
|
case llvm::Triple::armeb:
|
|
case llvm::Triple::thumb:
|
|
case llvm::Triple::thumbeb:
|
|
return getArch() != llvm::Triple::arm && getArch() != llvm::Triple::thumb &&
|
|
getArch() != llvm::Triple::armeb && getArch() != llvm::Triple::thumbeb;
|
|
default:
|
|
return HostTriple.getArch() != getArch();
|
|
}
|
|
}
|
|
|
|
ObjCRuntime ToolChain::getDefaultObjCRuntime(bool isNonFragile) const {
|
|
return ObjCRuntime(isNonFragile ? ObjCRuntime::GNUstep : ObjCRuntime::GCC,
|
|
VersionTuple());
|
|
}
|
|
|
|
llvm::ExceptionHandling
|
|
ToolChain::GetExceptionModel(const llvm::opt::ArgList &Args) const {
|
|
return llvm::ExceptionHandling::None;
|
|
}
|
|
|
|
bool ToolChain::isThreadModelSupported(const StringRef Model) const {
|
|
if (Model == "single") {
|
|
// FIXME: 'single' is only supported on ARM and WebAssembly so far.
|
|
return Triple.getArch() == llvm::Triple::arm ||
|
|
Triple.getArch() == llvm::Triple::armeb ||
|
|
Triple.getArch() == llvm::Triple::thumb ||
|
|
Triple.getArch() == llvm::Triple::thumbeb ||
|
|
Triple.getArch() == llvm::Triple::wasm32 ||
|
|
Triple.getArch() == llvm::Triple::wasm64;
|
|
} else if (Model == "posix")
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
std::string ToolChain::ComputeLLVMTriple(const ArgList &Args,
|
|
types::ID InputType) const {
|
|
switch (getTriple().getArch()) {
|
|
default:
|
|
return getTripleString();
|
|
|
|
case llvm::Triple::x86_64: {
|
|
llvm::Triple Triple = getTriple();
|
|
if (!Triple.isOSBinFormatMachO())
|
|
return getTripleString();
|
|
|
|
if (Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
|
|
// x86_64h goes in the triple. Other -march options just use the
|
|
// vanilla triple we already have.
|
|
StringRef MArch = A->getValue();
|
|
if (MArch == "x86_64h")
|
|
Triple.setArchName(MArch);
|
|
}
|
|
return Triple.getTriple();
|
|
}
|
|
case llvm::Triple::aarch64: {
|
|
llvm::Triple Triple = getTriple();
|
|
if (!Triple.isOSBinFormatMachO())
|
|
return getTripleString();
|
|
|
|
// FIXME: older versions of ld64 expect the "arm64" component in the actual
|
|
// triple string and query it to determine whether an LTO file can be
|
|
// handled. Remove this when we don't care any more.
|
|
Triple.setArchName("arm64");
|
|
return Triple.getTriple();
|
|
}
|
|
case llvm::Triple::arm:
|
|
case llvm::Triple::armeb:
|
|
case llvm::Triple::thumb:
|
|
case llvm::Triple::thumbeb: {
|
|
// FIXME: Factor into subclasses.
|
|
llvm::Triple Triple = getTriple();
|
|
bool IsBigEndian = getTriple().getArch() == llvm::Triple::armeb ||
|
|
getTriple().getArch() == llvm::Triple::thumbeb;
|
|
|
|
// Handle pseudo-target flags '-mlittle-endian'/'-EL' and
|
|
// '-mbig-endian'/'-EB'.
|
|
if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
|
|
options::OPT_mbig_endian)) {
|
|
IsBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
|
|
}
|
|
|
|
// Thumb2 is the default for V7 on Darwin.
|
|
//
|
|
// FIXME: Thumb should just be another -target-feaure, not in the triple.
|
|
StringRef MCPU, MArch;
|
|
if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
|
|
MCPU = A->getValue();
|
|
if (const Arg *A = Args.getLastArg(options::OPT_march_EQ))
|
|
MArch = A->getValue();
|
|
std::string CPU =
|
|
Triple.isOSBinFormatMachO()
|
|
? tools::arm::getARMCPUForMArch(MArch, Triple).str()
|
|
: tools::arm::getARMTargetCPU(MCPU, MArch, Triple);
|
|
StringRef Suffix =
|
|
tools::arm::getLLVMArchSuffixForARM(CPU, MArch, Triple);
|
|
bool IsMProfile = ARM::parseArchProfile(Suffix) == ARM::ProfileKind::M;
|
|
bool ThumbDefault = IsMProfile || (ARM::parseArchVersion(Suffix) == 7 &&
|
|
getTriple().isOSBinFormatMachO());
|
|
// FIXME: this is invalid for WindowsCE
|
|
if (getTriple().isOSWindows())
|
|
ThumbDefault = true;
|
|
std::string ArchName;
|
|
if (IsBigEndian)
|
|
ArchName = "armeb";
|
|
else
|
|
ArchName = "arm";
|
|
|
|
// Check if ARM ISA was explicitly selected (using -mno-thumb or -marm) for
|
|
// M-Class CPUs/architecture variants, which is not supported.
|
|
bool ARMModeRequested = !Args.hasFlag(options::OPT_mthumb,
|
|
options::OPT_mno_thumb, ThumbDefault);
|
|
if (IsMProfile && ARMModeRequested) {
|
|
if (!MCPU.empty())
|
|
getDriver().Diag(diag::err_cpu_unsupported_isa) << CPU << "ARM";
|
|
else
|
|
getDriver().Diag(diag::err_arch_unsupported_isa)
|
|
<< tools::arm::getARMArch(MArch, getTriple()) << "ARM";
|
|
}
|
|
|
|
// Check to see if an explicit choice to use thumb has been made via
|
|
// -mthumb. For assembler files we must check for -mthumb in the options
|
|
// passed to the assembler via -Wa or -Xassembler.
|
|
bool IsThumb = false;
|
|
if (InputType != types::TY_PP_Asm)
|
|
IsThumb = Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb,
|
|
ThumbDefault);
|
|
else {
|
|
// Ideally we would check for these flags in
|
|
// CollectArgsForIntegratedAssembler but we can't change the ArchName at
|
|
// that point. There is no assembler equivalent of -mno-thumb, -marm, or
|
|
// -mno-arm.
|
|
for (const auto *A :
|
|
Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) {
|
|
for (StringRef Value : A->getValues()) {
|
|
if (Value == "-mthumb")
|
|
IsThumb = true;
|
|
}
|
|
}
|
|
}
|
|
// Assembly files should start in ARM mode, unless arch is M-profile, or
|
|
// -mthumb has been passed explicitly to the assembler. Windows is always
|
|
// thumb.
|
|
if (IsThumb || IsMProfile || getTriple().isOSWindows()) {
|
|
if (IsBigEndian)
|
|
ArchName = "thumbeb";
|
|
else
|
|
ArchName = "thumb";
|
|
}
|
|
Triple.setArchName(ArchName + Suffix.str());
|
|
|
|
return Triple.getTriple();
|
|
}
|
|
}
|
|
}
|
|
|
|
std::string ToolChain::ComputeEffectiveClangTriple(const ArgList &Args,
|
|
types::ID InputType) const {
|
|
return ComputeLLVMTriple(Args, InputType);
|
|
}
|
|
|
|
void ToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
|
|
ArgStringList &CC1Args) const {
|
|
// Each toolchain should provide the appropriate include flags.
|
|
}
|
|
|
|
void ToolChain::addClangTargetOptions(
|
|
const ArgList &DriverArgs, ArgStringList &CC1Args,
|
|
Action::OffloadKind DeviceOffloadKind) const {}
|
|
|
|
void ToolChain::addClangWarningOptions(ArgStringList &CC1Args) const {}
|
|
|
|
void ToolChain::addProfileRTLibs(const llvm::opt::ArgList &Args,
|
|
llvm::opt::ArgStringList &CmdArgs) const {
|
|
if (!needsProfileRT(Args)) return;
|
|
|
|
CmdArgs.push_back(getCompilerRTArgString(Args, "profile"));
|
|
}
|
|
|
|
ToolChain::RuntimeLibType ToolChain::GetRuntimeLibType(
|
|
const ArgList &Args) const {
|
|
const Arg* A = Args.getLastArg(options::OPT_rtlib_EQ);
|
|
StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_RTLIB;
|
|
|
|
// Only use "platform" in tests to override CLANG_DEFAULT_RTLIB!
|
|
if (LibName == "compiler-rt")
|
|
return ToolChain::RLT_CompilerRT;
|
|
else if (LibName == "libgcc")
|
|
return ToolChain::RLT_Libgcc;
|
|
else if (LibName == "platform")
|
|
return GetDefaultRuntimeLibType();
|
|
|
|
if (A)
|
|
getDriver().Diag(diag::err_drv_invalid_rtlib_name) << A->getAsString(Args);
|
|
|
|
return GetDefaultRuntimeLibType();
|
|
}
|
|
|
|
ToolChain::UnwindLibType ToolChain::GetUnwindLibType(
|
|
const ArgList &Args) const {
|
|
const Arg *A = Args.getLastArg(options::OPT_unwindlib_EQ);
|
|
StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_UNWINDLIB;
|
|
|
|
if (LibName == "none")
|
|
return ToolChain::UNW_None;
|
|
else if (LibName == "platform" || LibName == "") {
|
|
ToolChain::RuntimeLibType RtLibType = GetRuntimeLibType(Args);
|
|
if (RtLibType == ToolChain::RLT_CompilerRT)
|
|
return ToolChain::UNW_None;
|
|
else if (RtLibType == ToolChain::RLT_Libgcc)
|
|
return ToolChain::UNW_Libgcc;
|
|
} else if (LibName == "libunwind") {
|
|
if (GetRuntimeLibType(Args) == RLT_Libgcc)
|
|
getDriver().Diag(diag::err_drv_incompatible_unwindlib);
|
|
return ToolChain::UNW_CompilerRT;
|
|
} else if (LibName == "libgcc")
|
|
return ToolChain::UNW_Libgcc;
|
|
|
|
if (A)
|
|
getDriver().Diag(diag::err_drv_invalid_unwindlib_name)
|
|
<< A->getAsString(Args);
|
|
|
|
return GetDefaultUnwindLibType();
|
|
}
|
|
|
|
ToolChain::CXXStdlibType ToolChain::GetCXXStdlibType(const ArgList &Args) const{
|
|
const Arg *A = Args.getLastArg(options::OPT_stdlib_EQ);
|
|
StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_CXX_STDLIB;
|
|
|
|
// Only use "platform" in tests to override CLANG_DEFAULT_CXX_STDLIB!
|
|
if (LibName == "libc++")
|
|
return ToolChain::CST_Libcxx;
|
|
else if (LibName == "libstdc++")
|
|
return ToolChain::CST_Libstdcxx;
|
|
else if (LibName == "platform")
|
|
return GetDefaultCXXStdlibType();
|
|
|
|
if (A)
|
|
getDriver().Diag(diag::err_drv_invalid_stdlib_name) << A->getAsString(Args);
|
|
|
|
return GetDefaultCXXStdlibType();
|
|
}
|
|
|
|
/// Utility function to add a system include directory to CC1 arguments.
|
|
/*static*/ void ToolChain::addSystemInclude(const ArgList &DriverArgs,
|
|
ArgStringList &CC1Args,
|
|
const Twine &Path) {
|
|
CC1Args.push_back("-internal-isystem");
|
|
CC1Args.push_back(DriverArgs.MakeArgString(Path));
|
|
}
|
|
|
|
/// Utility function to add a system include directory with extern "C"
|
|
/// semantics to CC1 arguments.
|
|
///
|
|
/// Note that this should be used rarely, and only for directories that
|
|
/// historically and for legacy reasons are treated as having implicit extern
|
|
/// "C" semantics. These semantics are *ignored* by and large today, but its
|
|
/// important to preserve the preprocessor changes resulting from the
|
|
/// classification.
|
|
/*static*/ void ToolChain::addExternCSystemInclude(const ArgList &DriverArgs,
|
|
ArgStringList &CC1Args,
|
|
const Twine &Path) {
|
|
CC1Args.push_back("-internal-externc-isystem");
|
|
CC1Args.push_back(DriverArgs.MakeArgString(Path));
|
|
}
|
|
|
|
void ToolChain::addExternCSystemIncludeIfExists(const ArgList &DriverArgs,
|
|
ArgStringList &CC1Args,
|
|
const Twine &Path) {
|
|
if (llvm::sys::fs::exists(Path))
|
|
addExternCSystemInclude(DriverArgs, CC1Args, Path);
|
|
}
|
|
|
|
/// Utility function to add a list of system include directories to CC1.
|
|
/*static*/ void ToolChain::addSystemIncludes(const ArgList &DriverArgs,
|
|
ArgStringList &CC1Args,
|
|
ArrayRef<StringRef> Paths) {
|
|
for (const auto Path : Paths) {
|
|
CC1Args.push_back("-internal-isystem");
|
|
CC1Args.push_back(DriverArgs.MakeArgString(Path));
|
|
}
|
|
}
|
|
|
|
void ToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
|
|
ArgStringList &CC1Args) const {
|
|
// Header search paths should be handled by each of the subclasses.
|
|
// Historically, they have not been, and instead have been handled inside of
|
|
// the CC1-layer frontend. As the logic is hoisted out, this generic function
|
|
// will slowly stop being called.
|
|
//
|
|
// While it is being called, replicate a bit of a hack to propagate the
|
|
// '-stdlib=' flag down to CC1 so that it can in turn customize the C++
|
|
// header search paths with it. Once all systems are overriding this
|
|
// function, the CC1 flag and this line can be removed.
|
|
DriverArgs.AddAllArgs(CC1Args, options::OPT_stdlib_EQ);
|
|
}
|
|
|
|
bool ToolChain::ShouldLinkCXXStdlib(const llvm::opt::ArgList &Args) const {
|
|
return getDriver().CCCIsCXX() &&
|
|
!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
|
|
options::OPT_nostdlibxx);
|
|
}
|
|
|
|
void ToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
|
|
ArgStringList &CmdArgs) const {
|
|
assert(!Args.hasArg(options::OPT_nostdlibxx) &&
|
|
"should not have called this");
|
|
CXXStdlibType Type = GetCXXStdlibType(Args);
|
|
|
|
switch (Type) {
|
|
case ToolChain::CST_Libcxx:
|
|
CmdArgs.push_back("-lc++");
|
|
break;
|
|
|
|
case ToolChain::CST_Libstdcxx:
|
|
CmdArgs.push_back("-lstdc++");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void ToolChain::AddFilePathLibArgs(const ArgList &Args,
|
|
ArgStringList &CmdArgs) const {
|
|
for (const auto &LibPath : getLibraryPaths())
|
|
if(LibPath.length() > 0)
|
|
CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath));
|
|
|
|
for (const auto &LibPath : getFilePaths())
|
|
if(LibPath.length() > 0)
|
|
CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath));
|
|
}
|
|
|
|
void ToolChain::AddCCKextLibArgs(const ArgList &Args,
|
|
ArgStringList &CmdArgs) const {
|
|
CmdArgs.push_back("-lcc_kext");
|
|
}
|
|
|
|
bool ToolChain::AddFastMathRuntimeIfAvailable(const ArgList &Args,
|
|
ArgStringList &CmdArgs) const {
|
|
// Do not check for -fno-fast-math or -fno-unsafe-math when -Ofast passed
|
|
// (to keep the linker options consistent with gcc and clang itself).
|
|
if (!isOptimizationLevelFast(Args)) {
|
|
// Check if -ffast-math or -funsafe-math.
|
|
Arg *A =
|
|
Args.getLastArg(options::OPT_ffast_math, options::OPT_fno_fast_math,
|
|
options::OPT_funsafe_math_optimizations,
|
|
options::OPT_fno_unsafe_math_optimizations);
|
|
|
|
if (!A || A->getOption().getID() == options::OPT_fno_fast_math ||
|
|
A->getOption().getID() == options::OPT_fno_unsafe_math_optimizations)
|
|
return false;
|
|
}
|
|
// If crtfastmath.o exists add it to the arguments.
|
|
std::string Path = GetFilePath("crtfastmath.o");
|
|
if (Path == "crtfastmath.o") // Not found.
|
|
return false;
|
|
|
|
CmdArgs.push_back(Args.MakeArgString(Path));
|
|
return true;
|
|
}
|
|
|
|
SanitizerMask ToolChain::getSupportedSanitizers() const {
|
|
// Return sanitizers which don't require runtime support and are not
|
|
// platform dependent.
|
|
|
|
SanitizerMask Res = (SanitizerKind::Undefined & ~SanitizerKind::Vptr &
|
|
~SanitizerKind::Function) |
|
|
(SanitizerKind::CFI & ~SanitizerKind::CFIICall) |
|
|
SanitizerKind::CFICastStrict |
|
|
SanitizerKind::UnsignedIntegerOverflow |
|
|
SanitizerKind::ImplicitConversion |
|
|
SanitizerKind::Nullability | SanitizerKind::LocalBounds;
|
|
if (getTriple().getArch() == llvm::Triple::x86 ||
|
|
getTriple().getArch() == llvm::Triple::x86_64 ||
|
|
getTriple().getArch() == llvm::Triple::arm ||
|
|
getTriple().getArch() == llvm::Triple::aarch64 ||
|
|
getTriple().getArch() == llvm::Triple::wasm32 ||
|
|
getTriple().getArch() == llvm::Triple::wasm64)
|
|
Res |= SanitizerKind::CFIICall;
|
|
if (getTriple().getArch() == llvm::Triple::x86_64 ||
|
|
getTriple().getArch() == llvm::Triple::aarch64)
|
|
Res |= SanitizerKind::ShadowCallStack;
|
|
return Res;
|
|
}
|
|
|
|
void ToolChain::AddCudaIncludeArgs(const ArgList &DriverArgs,
|
|
ArgStringList &CC1Args) const {}
|
|
|
|
void ToolChain::AddIAMCUIncludeArgs(const ArgList &DriverArgs,
|
|
ArgStringList &CC1Args) const {}
|
|
|
|
static VersionTuple separateMSVCFullVersion(unsigned Version) {
|
|
if (Version < 100)
|
|
return VersionTuple(Version);
|
|
|
|
if (Version < 10000)
|
|
return VersionTuple(Version / 100, Version % 100);
|
|
|
|
unsigned Build = 0, Factor = 1;
|
|
for (; Version > 10000; Version = Version / 10, Factor = Factor * 10)
|
|
Build = Build + (Version % 10) * Factor;
|
|
return VersionTuple(Version / 100, Version % 100, Build);
|
|
}
|
|
|
|
VersionTuple
|
|
ToolChain::computeMSVCVersion(const Driver *D,
|
|
const llvm::opt::ArgList &Args) const {
|
|
const Arg *MSCVersion = Args.getLastArg(options::OPT_fmsc_version);
|
|
const Arg *MSCompatibilityVersion =
|
|
Args.getLastArg(options::OPT_fms_compatibility_version);
|
|
|
|
if (MSCVersion && MSCompatibilityVersion) {
|
|
if (D)
|
|
D->Diag(diag::err_drv_argument_not_allowed_with)
|
|
<< MSCVersion->getAsString(Args)
|
|
<< MSCompatibilityVersion->getAsString(Args);
|
|
return VersionTuple();
|
|
}
|
|
|
|
if (MSCompatibilityVersion) {
|
|
VersionTuple MSVT;
|
|
if (MSVT.tryParse(MSCompatibilityVersion->getValue())) {
|
|
if (D)
|
|
D->Diag(diag::err_drv_invalid_value)
|
|
<< MSCompatibilityVersion->getAsString(Args)
|
|
<< MSCompatibilityVersion->getValue();
|
|
} else {
|
|
return MSVT;
|
|
}
|
|
}
|
|
|
|
if (MSCVersion) {
|
|
unsigned Version = 0;
|
|
if (StringRef(MSCVersion->getValue()).getAsInteger(10, Version)) {
|
|
if (D)
|
|
D->Diag(diag::err_drv_invalid_value)
|
|
<< MSCVersion->getAsString(Args) << MSCVersion->getValue();
|
|
} else {
|
|
return separateMSVCFullVersion(Version);
|
|
}
|
|
}
|
|
|
|
return VersionTuple();
|
|
}
|
|
|
|
llvm::opt::DerivedArgList *ToolChain::TranslateOpenMPTargetArgs(
|
|
const llvm::opt::DerivedArgList &Args, bool SameTripleAsHost,
|
|
SmallVectorImpl<llvm::opt::Arg *> &AllocatedArgs) const {
|
|
DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
|
|
const OptTable &Opts = getDriver().getOpts();
|
|
bool Modified = false;
|
|
|
|
// Handle -Xopenmp-target flags
|
|
for (auto *A : Args) {
|
|
// Exclude flags which may only apply to the host toolchain.
|
|
// Do not exclude flags when the host triple (AuxTriple)
|
|
// matches the current toolchain triple. If it is not present
|
|
// at all, target and host share a toolchain.
|
|
if (A->getOption().matches(options::OPT_m_Group)) {
|
|
if (SameTripleAsHost)
|
|
DAL->append(A);
|
|
else
|
|
Modified = true;
|
|
continue;
|
|
}
|
|
|
|
unsigned Index;
|
|
unsigned Prev;
|
|
bool XOpenMPTargetNoTriple =
|
|
A->getOption().matches(options::OPT_Xopenmp_target);
|
|
|
|
if (A->getOption().matches(options::OPT_Xopenmp_target_EQ)) {
|
|
// Passing device args: -Xopenmp-target=<triple> -opt=val.
|
|
if (A->getValue(0) == getTripleString())
|
|
Index = Args.getBaseArgs().MakeIndex(A->getValue(1));
|
|
else
|
|
continue;
|
|
} else if (XOpenMPTargetNoTriple) {
|
|
// Passing device args: -Xopenmp-target -opt=val.
|
|
Index = Args.getBaseArgs().MakeIndex(A->getValue(0));
|
|
} else {
|
|
DAL->append(A);
|
|
continue;
|
|
}
|
|
|
|
// Parse the argument to -Xopenmp-target.
|
|
Prev = Index;
|
|
std::unique_ptr<Arg> XOpenMPTargetArg(Opts.ParseOneArg(Args, Index));
|
|
if (!XOpenMPTargetArg || Index > Prev + 1) {
|
|
getDriver().Diag(diag::err_drv_invalid_Xopenmp_target_with_args)
|
|
<< A->getAsString(Args);
|
|
continue;
|
|
}
|
|
if (XOpenMPTargetNoTriple && XOpenMPTargetArg &&
|
|
Args.getAllArgValues(options::OPT_fopenmp_targets_EQ).size() != 1) {
|
|
getDriver().Diag(diag::err_drv_Xopenmp_target_missing_triple);
|
|
continue;
|
|
}
|
|
XOpenMPTargetArg->setBaseArg(A);
|
|
A = XOpenMPTargetArg.release();
|
|
AllocatedArgs.push_back(A);
|
|
DAL->append(A);
|
|
Modified = true;
|
|
}
|
|
|
|
if (Modified)
|
|
return DAL;
|
|
|
|
delete DAL;
|
|
return nullptr;
|
|
}
|