930d46a2ef
This change introduces support for object files in addition to static and shared libraries which were already supported which requires changing the type of the argument from boolean to an enum. Differential Revision: https://reviews.llvm.org/D56044 llvm-svn: 355891
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 Path.str();
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}
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