forked from OSchip/llvm-project
141 lines
4.5 KiB
C++
141 lines
4.5 KiB
C++
//===-- MipsLinux.cpp - Mips ToolChain Implementations ----------*- C++ -*-===//
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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 "MipsLinux.h"
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#include "Arch/Mips.h"
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#include "CommonArgs.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/Options.h"
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#include "llvm/Option/ArgList.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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using namespace clang::driver;
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using namespace clang::driver::toolchains;
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using namespace clang;
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using namespace llvm::opt;
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/// Mips Toolchain
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MipsLLVMToolChain::MipsLLVMToolChain(const Driver &D,
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const llvm::Triple &Triple,
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const ArgList &Args)
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: Linux(D, Triple, Args) {
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// Select the correct multilib according to the given arguments.
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DetectedMultilibs Result;
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findMIPSMultilibs(D, Triple, "", Args, Result);
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Multilibs = Result.Multilibs;
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SelectedMultilib = Result.SelectedMultilib;
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// Find out the library suffix based on the ABI.
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LibSuffix = tools::mips::getMipsABILibSuffix(Args, Triple);
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getFilePaths().clear();
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getFilePaths().push_back(computeSysRoot() + "/usr/lib" + LibSuffix);
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}
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void MipsLLVMToolChain::AddClangSystemIncludeArgs(
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const ArgList &DriverArgs, ArgStringList &CC1Args) const {
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if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
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return;
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const Driver &D = getDriver();
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if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
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SmallString<128> P(D.ResourceDir);
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llvm::sys::path::append(P, "include");
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addSystemInclude(DriverArgs, CC1Args, P);
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}
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if (DriverArgs.hasArg(options::OPT_nostdlibinc))
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return;
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const auto &Callback = Multilibs.includeDirsCallback();
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if (Callback) {
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for (const auto &Path : Callback(SelectedMultilib))
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addExternCSystemIncludeIfExists(DriverArgs, CC1Args,
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D.getInstalledDir() + Path);
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}
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}
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Tool *MipsLLVMToolChain::buildLinker() const {
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return new tools::gnutools::Linker(*this);
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}
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std::string MipsLLVMToolChain::computeSysRoot() const {
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if (!getDriver().SysRoot.empty())
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return getDriver().SysRoot + SelectedMultilib.osSuffix();
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const std::string InstalledDir(getDriver().getInstalledDir());
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std::string SysRootPath =
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InstalledDir + "/../sysroot" + SelectedMultilib.osSuffix();
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if (llvm::sys::fs::exists(SysRootPath))
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return SysRootPath;
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return std::string();
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}
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ToolChain::CXXStdlibType
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MipsLLVMToolChain::GetCXXStdlibType(const ArgList &Args) const {
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Arg *A = Args.getLastArg(options::OPT_stdlib_EQ);
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if (A) {
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StringRef Value = A->getValue();
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if (Value != "libc++")
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getDriver().Diag(clang::diag::err_drv_invalid_stdlib_name)
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<< A->getAsString(Args);
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}
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return ToolChain::CST_Libcxx;
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}
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void MipsLLVMToolChain::addLibCxxIncludePaths(
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const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args) const {
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if (const auto &Callback = Multilibs.includeDirsCallback()) {
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for (std::string Path : Callback(SelectedMultilib)) {
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Path = getDriver().getInstalledDir() + Path + "/c++/v1";
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if (llvm::sys::fs::exists(Path)) {
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addSystemInclude(DriverArgs, CC1Args, Path);
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return;
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}
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}
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}
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}
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void MipsLLVMToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
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ArgStringList &CmdArgs) const {
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assert((GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) &&
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"Only -lc++ (aka libxx) is supported in this toolchain.");
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CmdArgs.push_back("-lc++");
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CmdArgs.push_back("-lc++abi");
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CmdArgs.push_back("-lunwind");
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}
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std::string MipsLLVMToolChain::getCompilerRT(const ArgList &Args,
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StringRef Component,
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FileType Type) const {
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SmallString<128> Path(getDriver().ResourceDir);
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llvm::sys::path::append(Path, SelectedMultilib.osSuffix(), "lib" + LibSuffix,
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getOS());
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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 = ".o";
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break;
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case ToolChain::FT_Static:
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Suffix = ".a";
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break;
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case ToolChain::FT_Shared:
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Suffix = ".so";
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break;
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}
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llvm::sys::path::append(
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Path, Twine("libclang_rt." + Component + "-" + "mips" + Suffix));
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return std::string(Path.str());
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}
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