1 //===--- OpenBSD.h - OpenBSD ToolChain Implementations ----------*- 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_OPENBSD_H
10 #define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_OPENBSD_H
11 
12 #include "Gnu.h"
13 #include "clang/Basic/LangOptions.h"
14 #include "clang/Driver/Tool.h"
15 #include "clang/Driver/ToolChain.h"
16 
17 namespace clang {
18 namespace driver {
19 namespace tools {
20 
21 /// openbsd -- Directly call GNU Binutils assembler and linker
22 namespace openbsd {
23 class LLVM_LIBRARY_VISIBILITY Assembler : public Tool {
24 public:
25   Assembler(const ToolChain &TC)
26       : Tool("openbsd::Assembler", "assembler", TC) {}
27 
28   bool hasIntegratedCPP() const override { return false; }
29 
30   void ConstructJob(Compilation &C, const JobAction &JA,
31                     const InputInfo &Output, const InputInfoList &Inputs,
32                     const llvm::opt::ArgList &TCArgs,
33                     const char *LinkingOutput) const override;
34 };
35 
36 class LLVM_LIBRARY_VISIBILITY Linker : public Tool {
37 public:
38   Linker(const ToolChain &TC) : Tool("openbsd::Linker", "linker", TC) {}
39 
40   bool hasIntegratedCPP() const override { return false; }
41   bool isLinkJob() const override { return true; }
42 
43   void ConstructJob(Compilation &C, const JobAction &JA,
44                     const InputInfo &Output, const InputInfoList &Inputs,
45                     const llvm::opt::ArgList &TCArgs,
46                     const char *LinkingOutput) const override;
47 };
48 } // end namespace openbsd
49 } // end namespace tools
50 
51 namespace toolchains {
52 
53 class LLVM_LIBRARY_VISIBILITY OpenBSD : public Generic_ELF {
54 public:
55   OpenBSD(const Driver &D, const llvm::Triple &Triple,
56           const llvm::opt::ArgList &Args);
57 
58   bool HasNativeLLVMSupport() const override;
59 
60   bool IsMathErrnoDefault() const override { return false; }
61   bool IsObjCNonFragileABIDefault() const override { return true; }
62   bool isPIEDefault(const llvm::opt::ArgList &Args) const override {
63     return true;
64   }
65 
66   RuntimeLibType GetDefaultRuntimeLibType() const override {
67     return ToolChain::RLT_CompilerRT;
68   }
69   CXXStdlibType GetDefaultCXXStdlibType() const override {
70     return ToolChain::CST_Libcxx;
71   }
72 
73   void
74   AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
75                             llvm::opt::ArgStringList &CC1Args) const override;
76 
77   void addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
78                              llvm::opt::ArgStringList &CC1Args) const override;
79   void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args,
80                            llvm::opt::ArgStringList &CmdArgs) const override;
81 
82   std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef Component,
83                             FileType Type = ToolChain::FT_Static) const override;
84 
85   UnwindTableLevel
86   getDefaultUnwindTableLevel(const llvm::opt::ArgList &Args) const override;
87 
88   LangOptions::StackProtectorMode
89   GetDefaultStackProtectorLevel(bool KernelOrKext) const override {
90     return LangOptions::SSPStrong;
91   }
92   unsigned GetDefaultDwarfVersion() const override { return 2; }
93 
94   SanitizerMask getSupportedSanitizers() const override;
95 
96 protected:
97   Tool *buildAssembler() const override;
98   Tool *buildLinker() const override;
99 };
100 
101 } // end namespace toolchains
102 } // end namespace driver
103 } // end namespace clang
104 
105 #endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_OPENBSD_H
106