WebAssembly.h

//===--- WebAssembly.h - WebAssembly ToolChain Implementations --*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_WEBASSEMBLY_H
#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_WEBASSEMBLY_H

#include "Gnu.h"
#include "clang/Driver/Tool.h"
#include "clang/Driver/ToolChain.h"

namespace clang {
namespace driver {
namespace tools {
namespace wasm {

class LLVM_LIBRARY_VISIBILITY Linker final : public Tool {
public:
  explicit Linker(const ToolChain &TC) : Tool("wasm::Linker", "linker", TC) {}
  bool isLinkJob() const override { return true; }
  bool hasIntegratedCPP() const override { return false; }
  std::string getLinkerPath(const llvm::opt::ArgList &Args) const;
  void ConstructJob(Compilation &C, const JobAction &JA,
                    const InputInfo &Output, const InputInfoList &Inputs,
                    const llvm::opt::ArgList &TCArgs,
                    const char *LinkingOutput) const override;
};

} // end namespace wasm
} // end namespace tools

namespace toolchains {

class LLVM_LIBRARY_VISIBILITY WebAssembly final : public ToolChain {
public:
  WebAssembly(const Driver &D, const llvm::Triple &Triple,
              const llvm::opt::ArgList &Args);

private:
  bool IsMathErrnoDefault() const override;
  bool IsObjCNonFragileABIDefault() const override;
  bool UseObjCMixedDispatch() const override;
  bool isPICDefault() const override;
  bool isPIEDefault(const llvm::opt::ArgList &Args) const override;
  bool isPICDefaultForced() const override;
  bool hasBlocksRuntime() const override;
  bool SupportsProfiling() const override;
  bool HasNativeLLVMSupport() const override;
  unsigned GetDefaultDwarfVersion() const override { return 4; }
  void
  addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,
                        llvm::opt::ArgStringList &CC1Args,
                        Action::OffloadKind DeviceOffloadKind) const override;
  RuntimeLibType GetDefaultRuntimeLibType() const override;
  CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const override;
  void
  AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
                            llvm::opt::ArgStringList &CC1Args) const override;
  void AddClangCXXStdlibIncludeArgs(
      const llvm::opt::ArgList &DriverArgs,
      llvm::opt::ArgStringList &CC1Args) const override;
  void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args,
                           llvm::opt::ArgStringList &CmdArgs) const override;
  SanitizerMask getSupportedSanitizers() const override;

  const char *getDefaultLinker() const override;

  CXXStdlibType GetDefaultCXXStdlibType() const override {
    return ToolChain::CST_Libcxx;
  }

  Tool *buildLinker() const override;

  std::string getMultiarchTriple(const Driver &D,
                                 const llvm::Triple &TargetTriple,
                                 StringRef SysRoot) const override;

  void addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
                             llvm::opt::ArgStringList &CC1Args) const;
  void addLibStdCXXIncludePaths(const llvm::opt::ArgList &DriverArgs,
                                llvm::opt::ArgStringList &CC1Args) const;
};

} // end namespace toolchains
} // end namespace driver
} // end namespace clang

#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_WEBASSEMBLY_H