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 public: 37 bool useIntegratedAs() const override { return true; } 38 bool isBareMetal() const override { return true; } 39 bool isCrossCompiling() const override { return true; } 40 bool isPICDefault() const override { return false; } 41 bool isPIEDefault(const llvm::opt::ArgList &Args) const override { 42 return false; 43 } 44 bool isPICDefaultForced() const override { return false; } 45 bool SupportsProfiling() const override { return false; } 46 47 StringRef getOSLibName() const override { return "baremetal"; } 48 49 RuntimeLibType GetDefaultRuntimeLibType() const override { 50 return ToolChain::RLT_CompilerRT; 51 } 52 CXXStdlibType GetDefaultCXXStdlibType() const override { 53 return ToolChain::CST_Libcxx; 54 } 55 56 const char *getDefaultLinker() const override { return "ld.lld"; } 57 58 void 59 AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, 60 llvm::opt::ArgStringList &CC1Args) const override; 61 void 62 addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, 63 llvm::opt::ArgStringList &CC1Args, 64 Action::OffloadKind DeviceOffloadKind) const override; 65 void AddClangCXXStdlibIncludeArgs( 66 const llvm::opt::ArgList &DriverArgs, 67 llvm::opt::ArgStringList &CC1Args) const override; 68 void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, 69 llvm::opt::ArgStringList &CmdArgs) const override; 70 void AddLinkRuntimeLib(const llvm::opt::ArgList &Args, 71 llvm::opt::ArgStringList &CmdArgs) const; 72 std::string computeSysRoot() const override; 73 }; 74 75 } // namespace toolchains 76 77 namespace tools { 78 namespace baremetal { 79 80 class LLVM_LIBRARY_VISIBILITY Linker : public Tool { 81 public: 82 Linker(const ToolChain &TC) : Tool("baremetal::Linker", "ld.lld", TC) {} 83 bool isLinkJob() const override { return true; } 84 bool hasIntegratedCPP() const override { return false; } 85 void ConstructJob(Compilation &C, const JobAction &JA, 86 const InputInfo &Output, const InputInfoList &Inputs, 87 const llvm::opt::ArgList &TCArgs, 88 const char *LinkingOutput) const override; 89 }; 90 91 } // namespace baremetal 92 } // namespace tools 93 94 } // namespace driver 95 } // namespace clang 96 97 #endif 98