Coverage Report

Created: 2017-10-03 07:32

/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/tools/lld/include/lld/Core/SharedLibraryAtom.h
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//===- Core/SharedLibraryAtom.h - A Shared Library Atom -------------------===//
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//
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//                             The LLVM Linker
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLD_CORE_SHARED_LIBRARY_ATOM_H
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#define LLD_CORE_SHARED_LIBRARY_ATOM_H
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#include "lld/Core/Atom.h"
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namespace lld {
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/// A SharedLibraryAtom has no content.
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/// It exists to represent a symbol which will be bound at runtime.
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class SharedLibraryAtom : public Atom {
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public:
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  enum class Type : uint32_t {
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    Unknown,
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    Code,
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    Data,
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  };
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  /// Returns shared library name used to load it at runtime.
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  /// On Darwin it is the LC_DYLIB_LOAD dylib name.
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  virtual StringRef loadName() const = 0;
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  /// Returns if shared library symbol can be missing at runtime and if
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  /// so the loader should silently resolve address of symbol to be nullptr.
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  virtual bool canBeNullAtRuntime() const = 0;
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  virtual Type type() const = 0;
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  virtual uint64_t size() const = 0;
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  static bool classof(const Atom *a) {
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    return a->definition() == definitionSharedLibrary;
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  }
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  static inline bool classof(const SharedLibraryAtom *) { return true; }
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protected:
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  SharedLibraryAtom() : Atom(definitionSharedLibrary) {}
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  ~SharedLibraryAtom() override = default;
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};
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} // namespace lld
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#endif // LLD_CORE_SHARED_LIBRARY_ATOM_H