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 SanitizerMask getSupportedSanitizers() const override;
80
81 SmallVector<std::string>
82 getMultilibMacroDefinesStr(llvm::opt::ArgList &Args) const override;
83
84private:
85 using OrderedMultilibs =
86 llvm::iterator_range<llvm::SmallVector<Multilib>::const_reverse_iterator>;
87 OrderedMultilibs getOrderedMultilibs() const;
88
89 std::string SysRoot;
90
91 bool IsGCCInstallationValid;
92
93 SmallVector<std::string> MultilibMacroDefines;
94};
95
96} // namespace toolchains
97
98namespace tools {
99namespace baremetal {
100
101class LLVM_LIBRARY_VISIBILITY StaticLibTool : public Tool {
102public:
103 StaticLibTool(const ToolChain &TC)
104 : Tool("baremetal::StaticLibTool", "llvm-ar", TC) {}
105
106 bool hasIntegratedCPP() const override { return false; }
107 bool isLinkJob() const override { return true; }
108
109 void ConstructJob(Compilation &C, const JobAction &JA,
110 const InputInfo &Output, const InputInfoList &Inputs,
111 const llvm::opt::ArgList &TCArgs,
112 const char *LinkingOutput) const override;
113};
114
115class LLVM_LIBRARY_VISIBILITY Linker final : public Tool {
116public:
117 Linker(const ToolChain &TC) : Tool("baremetal::Linker", "linker", TC) {}
118 bool isLinkJob() const override { return true; }
119 bool hasIntegratedCPP() const override { return false; }
120 void ConstructJob(Compilation &C, const JobAction &JA,
121 const InputInfo &Output, const InputInfoList &Inputs,
122 const llvm::opt::ArgList &TCArgs,
123 const char *LinkingOutput) const override;
124};
125
126} // namespace baremetal
127} // namespace tools
128
129} // namespace driver
130} // namespace clang
131
132#endif
133