Fangrui Song | 524b3c1 | 2019-03-01 06:49:51 +0000 | [diff] [blame] | 1 | //===-- MipsLinux.cpp - Mips ToolChain Implementations ----------*- C++ -*-===// |
David L. Jones | f561aba | 2017-03-08 01:02:16 +0000 | [diff] [blame] | 2 | // |
Chandler Carruth | 2946cd7 | 2019-01-19 08:50:56 +0000 | [diff] [blame] | 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
David L. Jones | f561aba | 2017-03-08 01:02:16 +0000 | [diff] [blame] | 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
Konstantin Zhuravlyov | e37b32c | 2017-03-08 22:36:04 +0000 | [diff] [blame] | 9 | #include "MipsLinux.h" |
David L. Jones | f561aba | 2017-03-08 01:02:16 +0000 | [diff] [blame] | 10 | #include "Arch/Mips.h" |
| 11 | #include "CommonArgs.h" |
David L. Jones | f561aba | 2017-03-08 01:02:16 +0000 | [diff] [blame] | 12 | #include "clang/Driver/Driver.h" |
| 13 | #include "clang/Driver/DriverDiagnostic.h" |
| 14 | #include "clang/Driver/Options.h" |
| 15 | #include "llvm/Option/ArgList.h" |
| 16 | #include "llvm/Support/FileSystem.h" |
| 17 | #include "llvm/Support/Path.h" |
| 18 | |
| 19 | using namespace clang::driver; |
| 20 | using namespace clang::driver::toolchains; |
| 21 | using namespace clang; |
| 22 | using namespace llvm::opt; |
| 23 | |
| 24 | /// Mips Toolchain |
| 25 | MipsLLVMToolChain::MipsLLVMToolChain(const Driver &D, |
| 26 | const llvm::Triple &Triple, |
| 27 | const ArgList &Args) |
| 28 | : Linux(D, Triple, Args) { |
| 29 | // Select the correct multilib according to the given arguments. |
| 30 | DetectedMultilibs Result; |
| 31 | findMIPSMultilibs(D, Triple, "", Args, Result); |
| 32 | Multilibs = Result.Multilibs; |
| 33 | SelectedMultilib = Result.SelectedMultilib; |
| 34 | |
| 35 | // Find out the library suffix based on the ABI. |
| 36 | LibSuffix = tools::mips::getMipsABILibSuffix(Args, Triple); |
| 37 | getFilePaths().clear(); |
| 38 | getFilePaths().push_back(computeSysRoot() + "/usr/lib" + LibSuffix); |
| 39 | } |
| 40 | |
| 41 | void MipsLLVMToolChain::AddClangSystemIncludeArgs( |
| 42 | const ArgList &DriverArgs, ArgStringList &CC1Args) const { |
| 43 | if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc)) |
| 44 | return; |
| 45 | |
| 46 | const Driver &D = getDriver(); |
| 47 | |
| 48 | if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { |
| 49 | SmallString<128> P(D.ResourceDir); |
| 50 | llvm::sys::path::append(P, "include"); |
| 51 | addSystemInclude(DriverArgs, CC1Args, P); |
| 52 | } |
| 53 | |
| 54 | if (DriverArgs.hasArg(options::OPT_nostdlibinc)) |
| 55 | return; |
| 56 | |
| 57 | const auto &Callback = Multilibs.includeDirsCallback(); |
| 58 | if (Callback) { |
| 59 | for (const auto &Path : Callback(SelectedMultilib)) |
| 60 | addExternCSystemIncludeIfExists(DriverArgs, CC1Args, |
| 61 | D.getInstalledDir() + Path); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | Tool *MipsLLVMToolChain::buildLinker() const { |
| 66 | return new tools::gnutools::Linker(*this); |
| 67 | } |
| 68 | |
| 69 | std::string MipsLLVMToolChain::computeSysRoot() const { |
| 70 | if (!getDriver().SysRoot.empty()) |
| 71 | return getDriver().SysRoot + SelectedMultilib.osSuffix(); |
| 72 | |
| 73 | const std::string InstalledDir(getDriver().getInstalledDir()); |
| 74 | std::string SysRootPath = |
| 75 | InstalledDir + "/../sysroot" + SelectedMultilib.osSuffix(); |
| 76 | if (llvm::sys::fs::exists(SysRootPath)) |
| 77 | return SysRootPath; |
| 78 | |
| 79 | return std::string(); |
| 80 | } |
| 81 | |
| 82 | ToolChain::CXXStdlibType |
| 83 | MipsLLVMToolChain::GetCXXStdlibType(const ArgList &Args) const { |
| 84 | Arg *A = Args.getLastArg(options::OPT_stdlib_EQ); |
| 85 | if (A) { |
| 86 | StringRef Value = A->getValue(); |
| 87 | if (Value != "libc++") |
| 88 | getDriver().Diag(clang::diag::err_drv_invalid_stdlib_name) |
| 89 | << A->getAsString(Args); |
| 90 | } |
| 91 | |
| 92 | return ToolChain::CST_Libcxx; |
| 93 | } |
| 94 | |
Petr Hosek | 8d61214 | 2018-04-10 19:55:55 +0000 | [diff] [blame] | 95 | void MipsLLVMToolChain::addLibCxxIncludePaths( |
| 96 | const llvm::opt::ArgList &DriverArgs, |
| 97 | llvm::opt::ArgStringList &CC1Args) const { |
David L. Jones | f561aba | 2017-03-08 01:02:16 +0000 | [diff] [blame] | 98 | if (const auto &Callback = Multilibs.includeDirsCallback()) { |
| 99 | for (std::string Path : Callback(SelectedMultilib)) { |
| 100 | Path = getDriver().getInstalledDir() + Path + "/c++/v1"; |
| 101 | if (llvm::sys::fs::exists(Path)) { |
Petr Hosek | 8d61214 | 2018-04-10 19:55:55 +0000 | [diff] [blame] | 102 | addSystemInclude(DriverArgs, CC1Args, Path); |
| 103 | return; |
David L. Jones | f561aba | 2017-03-08 01:02:16 +0000 | [diff] [blame] | 104 | } |
| 105 | } |
| 106 | } |
David L. Jones | f561aba | 2017-03-08 01:02:16 +0000 | [diff] [blame] | 107 | } |
| 108 | |
| 109 | void MipsLLVMToolChain::AddCXXStdlibLibArgs(const ArgList &Args, |
| 110 | ArgStringList &CmdArgs) const { |
| 111 | assert((GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) && |
Hiroshi Inoue | 3170de0 | 2017-07-01 08:46:43 +0000 | [diff] [blame] | 112 | "Only -lc++ (aka libxx) is supported in this toolchain."); |
David L. Jones | f561aba | 2017-03-08 01:02:16 +0000 | [diff] [blame] | 113 | |
| 114 | CmdArgs.push_back("-lc++"); |
| 115 | CmdArgs.push_back("-lc++abi"); |
| 116 | CmdArgs.push_back("-lunwind"); |
| 117 | } |
| 118 | |
| 119 | std::string MipsLLVMToolChain::getCompilerRT(const ArgList &Args, |
| 120 | StringRef Component, |
Petr Hosek | 930d46a | 2019-03-12 02:12:48 +0000 | [diff] [blame] | 121 | FileType Type) const { |
David L. Jones | f561aba | 2017-03-08 01:02:16 +0000 | [diff] [blame] | 122 | SmallString<128> Path(getDriver().ResourceDir); |
| 123 | llvm::sys::path::append(Path, SelectedMultilib.osSuffix(), "lib" + LibSuffix, |
| 124 | getOS()); |
Petr Hosek | 930d46a | 2019-03-12 02:12:48 +0000 | [diff] [blame] | 125 | const char *Suffix; |
| 126 | switch (Type) { |
| 127 | case ToolChain::FT_Object: |
| 128 | Suffix = ".o"; |
| 129 | break; |
| 130 | case ToolChain::FT_Static: |
| 131 | Suffix = ".a"; |
| 132 | break; |
| 133 | case ToolChain::FT_Shared: |
| 134 | Suffix = ".so"; |
| 135 | break; |
| 136 | } |
| 137 | llvm::sys::path::append( |
| 138 | Path, Twine("libclang_rt." + Component + "-" + "mips" + Suffix)); |
David L. Jones | f561aba | 2017-03-08 01:02:16 +0000 | [diff] [blame] | 139 | return Path.str(); |
| 140 | } |