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
17namespace clang {
18namespace driver {
19
20namespace toolchains {
21
22class LLVM_LIBRARY_VISIBILITY BareMetal : public ToolChain {
23public:
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
33protected:
34  Tool *buildLinker() const override;
35  Tool *buildStaticLibTool() const override;
36
37public:
38  bool useIntegratedAs() const override { return true; }
39  bool isBareMetal() const override { return true; }
40  bool isCrossCompiling() const override { return true; }
41  bool HasNativeLLVMSupport() const override { return true; }
42  bool isPICDefault() const override { return false; }
43  bool isPIEDefault(const llvm::opt::ArgList &Args) const override {
44    return false;
45  }
46  bool isPICDefaultForced() const override { return false; }
47  bool SupportsProfiling() const override { return false; }
48
49  StringRef getOSLibName() const override { return "baremetal"; }
50
51  RuntimeLibType GetDefaultRuntimeLibType() const override {
52    return ToolChain::RLT_CompilerRT;
53  }
54  CXXStdlibType GetDefaultCXXStdlibType() const override {
55    return ToolChain::CST_Libcxx;
56  }
57
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
77private:
78  using OrderedMultilibs =
79      llvm::iterator_range<llvm::SmallVector<Multilib>::const_reverse_iterator>;
80  OrderedMultilibs getOrderedMultilibs() const;
81};
82
83} // namespace toolchains
84
85namespace tools {
86namespace baremetal {
87
88class LLVM_LIBRARY_VISIBILITY StaticLibTool : public Tool {
89public:
90  StaticLibTool(const ToolChain &TC)
91      : Tool("baremetal::StaticLibTool", "llvm-ar", TC) {}
92
93  bool hasIntegratedCPP() const override { return false; }
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
102class LLVM_LIBRARY_VISIBILITY Linker final : public Tool {
103public:
104  Linker(const ToolChain &TC) : Tool("baremetal::Linker", "ld.lld", TC) {}
105  bool isLinkJob() const override { return true; }
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