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 "ToolChains/Gnu.h"
13#include "clang/Driver/Tool.h"
14#include "clang/Driver/ToolChain.h"
15
16#include <string>
17
18namespace clang {
19namespace driver {
20
21namespace toolchains {
22
23class LLVM_LIBRARY_VISIBILITY BareMetal : public Generic_ELF {
24public:
25 BareMetal(const Driver &D, const llvm::Triple &Triple,
26 const llvm::opt::ArgList &Args);
27 ~BareMetal() override = default;
28
29 static bool handlesTarget(const llvm::Triple &Triple);
30
31 void findMultilibs(const Driver &D, const llvm::Triple &Triple,
32 const llvm::opt::ArgList &Args);
33
34protected:
35 Tool *buildLinker() const override;
36 Tool *buildStaticLibTool() const override;
37
38public:
39 bool initGCCInstallation(const llvm::Triple &Triple,
40 const llvm::opt::ArgList &Args);
41 bool hasValidGCCInstallation() const { return IsGCCInstallationValid; }
42 bool isBareMetal() const override { return true; }
43 bool isCrossCompiling() const override { return true; }
44 bool HasNativeLLVMSupport() const override { return true; }
45 bool isPICDefault() const override { return false; }
46 bool isPIEDefault(const llvm::opt::ArgList &Args) const override {
47 return false;
48 }
49 bool isPICDefaultForced() const override { return false; }
50 bool SupportsProfiling() const override { return false; }
51
52 StringRef getOSLibName() const override { return "baremetal"; }
53
54 UnwindTableLevel
55 getDefaultUnwindTableLevel(const llvm::opt::ArgList &Args) const override {
56 return UnwindTableLevel::None;
57 }
58
59 CXXStdlibType GetDefaultCXXStdlibType() const override;
60
61 RuntimeLibType GetDefaultRuntimeLibType() const override;
62
63 UnwindLibType GetUnwindLibType(const llvm::opt::ArgList &Args) const override;
64
65 void
66 AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
67 llvm::opt::ArgStringList &CC1Args) const override;
68 void
69 addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,
70 llvm::opt::ArgStringList &CC1Args,
71 Action::OffloadKind DeviceOffloadKind) const override;
72 void AddClangCXXStdlibIncludeArgs(
73 const llvm::opt::ArgList &DriverArgs,
74 llvm::opt::ArgStringList &CC1Args) const override;
75 void
76 addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
77 llvm::opt::ArgStringList &CC1Args) const override;
78 std::string computeSysRoot() const override;
79 std::string getCompilerRTPath() const override;
80 SanitizerMask getSupportedSanitizers() const override;
81
82 SmallVector<std::string>
83 getMultilibMacroDefinesStr(llvm::opt::ArgList &Args) const override;
84
85private:
86 using OrderedMultilibs =
87 llvm::iterator_range<llvm::SmallVector<Multilib>::const_reverse_iterator>;
88 OrderedMultilibs getOrderedMultilibs() const;
89
90 std::string SysRoot;
91
92 bool IsGCCInstallationValid;
93
94 SmallVector<std::string> MultilibMacroDefines;
95};
96
97} // namespace toolchains
98
99namespace tools {
100namespace baremetal {
101
102class LLVM_LIBRARY_VISIBILITY StaticLibTool : public Tool {
103public:
104 StaticLibTool(const ToolChain &TC)
105 : Tool("baremetal::StaticLibTool", "llvm-ar", TC) {}
106
107 bool hasIntegratedCPP() const override { return false; }
108 bool isLinkJob() const override { return true; }
109
110 void ConstructJob(Compilation &C, const JobAction &JA,
111 const InputInfo &Output, const InputInfoList &Inputs,
112 const llvm::opt::ArgList &TCArgs,
113 const char *LinkingOutput) const override;
114};
115
116class LLVM_LIBRARY_VISIBILITY Linker final : public Tool {
117public:
118 Linker(const ToolChain &TC) : Tool("baremetal::Linker", "linker", TC) {}
119 bool isLinkJob() const override { return true; }
120 bool hasIntegratedCPP() const override { return false; }
121 void ConstructJob(Compilation &C, const JobAction &JA,
122 const InputInfo &Output, const InputInfoList &Inputs,
123 const llvm::opt::ArgList &TCArgs,
124 const char *LinkingOutput) const override;
125};
126
127} // namespace baremetal
128} // namespace tools
129
130} // namespace driver
131} // namespace clang
132
133#endif
134