clang/lib/Driver/ToolChains/OpenBSD.h

   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   bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const override;
  86
  87   LangOptions::StackProtectorMode
  88   GetDefaultStackProtectorLevel(bool KernelOrKext) const override {
  89     return LangOptions::SSPStrong;
  90   }
  91   unsigned GetDefaultDwarfVersion() const override { return 2; }
  92
  93   SanitizerMask getSupportedSanitizers() const override;
  94
  95 protected:
  96   Tool *buildAssembler() const override;
  97   Tool *buildLinker() const override;
  98 };
  99
 100 } // end namespace toolchains
 101 } // end namespace driver
 102 } // end namespace clang
 103
 104 #endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_OPENBSD_H