1 //===--- BareMetal.h - Bare Metal Tool and ToolChain -------------*- C++ -*-===// 2 // 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 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_BAREMETAL_H 10 #define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_BAREMETAL_H 11 12 #include "clang/Driver/Tool.h" 13 #include "clang/Driver/ToolChain.h" 14 15 #include <string> 16 17 namespace clang { 18 namespace driver { 19 20 namespace toolchains { 21 22 class LLVM_LIBRARY_VISIBILITY BareMetal : public ToolChain { 23 public: 24 BareMetal(const Driver &D, const llvm::Triple &Triple, 25 const llvm::opt::ArgList &Args); 26 ~BareMetal() override = default; 27 28 static bool handlesTarget(const llvm::Triple &Triple); 29 30 void findMultilibs(const Driver &D, const llvm::Triple &Triple, 31 const llvm::opt::ArgList &Args); 32 33 protected: 34 Tool *buildLinker() const override; 35 36 std::string buildCompilerRTBasename(const llvm::opt::ArgList &Args, 37 StringRef Component, 38 FileType Type = ToolChain::FT_Static, 39 bool AddArch = true) const override; 40 41 public: 42 bool useIntegratedAs() const override { return true; } 43 bool isCrossCompiling() const override { return true; } 44 bool isPICDefault() const override { return false; } 45 bool isPIEDefault(const llvm::opt::ArgList &Args) const override { 46 return false; 47 } 48 bool isPICDefaultForced() const override { return false; } 49 bool SupportsProfiling() const override { return false; } 50 51 StringRef getOSLibName() const override { return "baremetal"; } 52 53 std::string getCompilerRTPath() const override; 54 55 RuntimeLibType GetDefaultRuntimeLibType() const override { 56 return ToolChain::RLT_CompilerRT; 57 } 58 CXXStdlibType GetDefaultCXXStdlibType() const override { 59 return ToolChain::CST_Libcxx; 60 } 61 62 const char *getDefaultLinker() const override { return "ld.lld"; } 63 64 std::string getRuntimesDir() const; 65 void AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, 66 llvm::opt::ArgStringList &CC1Args) const override; 67 void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, 68 llvm::opt::ArgStringList &CC1Args, 69 Action::OffloadKind DeviceOffloadKind) const override; 70 void AddClangCXXStdlibIncludeArgs( 71 const llvm::opt::ArgList &DriverArgs, 72 llvm::opt::ArgStringList &CC1Args) const override; 73 void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, 74 llvm::opt::ArgStringList &CmdArgs) const override; 75 void AddLinkRuntimeLib(const llvm::opt::ArgList &Args, 76 llvm::opt::ArgStringList &CmdArgs) const; 77 std::string computeSysRoot() const override; 78 }; 79 80 } // namespace toolchains 81 82 namespace tools { 83 namespace baremetal { 84 85 class LLVM_LIBRARY_VISIBILITY Linker : public Tool { 86 public: 87 Linker(const ToolChain &TC) : Tool("baremetal::Linker", "ld.lld", TC) {} 88 bool isLinkJob() const override { return true; } 89 bool hasIntegratedCPP() const override { return false; } 90 void ConstructJob(Compilation &C, const JobAction &JA, 91 const InputInfo &Output, const InputInfoList &Inputs, 92 const llvm::opt::ArgList &TCArgs, 93 const char *LinkingOutput) const override; 94 }; 95 96 } // namespace baremetal 97 } // namespace tools 98 99 } // namespace driver 100 } // namespace clang 101 102 #endif 103