clang/lib/Driver/ToolChains/BareMetal.h

   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