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 Tool *buildStaticLibTool() const override; 36 37 public: useIntegratedAs()38 bool useIntegratedAs() const override { return true; } isBareMetal()39 bool isBareMetal() const override { return true; } isCrossCompiling()40 bool isCrossCompiling() const override { return true; } HasNativeLLVMSupport()41 bool HasNativeLLVMSupport() const override { return true; } isPICDefault()42 bool isPICDefault() const override { return false; } isPIEDefault(const llvm::opt::ArgList & Args)43 bool isPIEDefault(const llvm::opt::ArgList &Args) const override { 44 return false; 45 } isPICDefaultForced()46 bool isPICDefaultForced() const override { return false; } SupportsProfiling()47 bool SupportsProfiling() const override { return false; } 48 getOSLibName()49 StringRef getOSLibName() const override { return "baremetal"; } 50 GetDefaultRuntimeLibType()51 RuntimeLibType GetDefaultRuntimeLibType() const override { 52 return ToolChain::RLT_CompilerRT; 53 } GetDefaultCXXStdlibType()54 CXXStdlibType GetDefaultCXXStdlibType() const override { 55 return ToolChain::CST_Libcxx; 56 } 57 getDefaultLinker()58 const char *getDefaultLinker() const override { return "ld.lld"; } 59 60 void 61 AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, 62 llvm::opt::ArgStringList &CC1Args) const override; 63 void 64 addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, 65 llvm::opt::ArgStringList &CC1Args, 66 Action::OffloadKind DeviceOffloadKind) const override; 67 void AddClangCXXStdlibIncludeArgs( 68 const llvm::opt::ArgList &DriverArgs, 69 llvm::opt::ArgStringList &CC1Args) const override; 70 void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, 71 llvm::opt::ArgStringList &CmdArgs) const override; 72 void AddLinkRuntimeLib(const llvm::opt::ArgList &Args, 73 llvm::opt::ArgStringList &CmdArgs) const; 74 std::string computeSysRoot() const override; 75 SanitizerMask getSupportedSanitizers() const override; 76 77 private: 78 using OrderedMultilibs = 79 llvm::iterator_range<llvm::SmallVector<Multilib>::const_reverse_iterator>; 80 OrderedMultilibs getOrderedMultilibs() const; 81 }; 82 83 } // namespace toolchains 84 85 namespace tools { 86 namespace baremetal { 87 88 class LLVM_LIBRARY_VISIBILITY StaticLibTool : public Tool { 89 public: StaticLibTool(const ToolChain & TC)90 StaticLibTool(const ToolChain &TC) 91 : Tool("baremetal::StaticLibTool", "llvm-ar", TC) {} 92 hasIntegratedCPP()93 bool hasIntegratedCPP() const override { return false; } isLinkJob()94 bool isLinkJob() const override { return true; } 95 96 void ConstructJob(Compilation &C, const JobAction &JA, 97 const InputInfo &Output, const InputInfoList &Inputs, 98 const llvm::opt::ArgList &TCArgs, 99 const char *LinkingOutput) const override; 100 }; 101 102 class LLVM_LIBRARY_VISIBILITY Linker final : public Tool { 103 public: Linker(const ToolChain & TC)104 Linker(const ToolChain &TC) : Tool("baremetal::Linker", "ld.lld", TC) {} isLinkJob()105 bool isLinkJob() const override { return true; } hasIntegratedCPP()106 bool hasIntegratedCPP() const override { return false; } 107 void ConstructJob(Compilation &C, const JobAction &JA, 108 const InputInfo &Output, const InputInfoList &Inputs, 109 const llvm::opt::ArgList &TCArgs, 110 const char *LinkingOutput) const override; 111 }; 112 113 } // namespace baremetal 114 } // namespace tools 115 116 } // namespace driver 117 } // namespace clang 118 119 #endif 120