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43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
//===- Core/AbsoluteAtom.h - An absolute 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_ABSOLUTE_ATOM_H
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#define LLD_CORE_ABSOLUTE_ATOM_H
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#include "lld/Core/Atom.h"
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namespace lld {
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/// An AbsoluteAtom has no content.
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/// It exists to represent content at fixed addresses in memory.
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class AbsoluteAtom : public Atom {
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public:
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virtual uint64_t value() const = 0;
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/// scope - The visibility of this atom to other atoms. C static functions
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/// have scope scopeTranslationUnit. Regular C functions have scope
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/// scopeGlobal. Functions compiled with visibility=hidden have scope
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/// scopeLinkageUnit so they can be see by other atoms being linked but not
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/// by the OS loader.
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virtual Scope scope() const = 0;
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static bool classof(const Atom *a) {
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return a->definition() == definitionAbsolute;
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}
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static bool classof(const AbsoluteAtom *) { return true; }
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protected:
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AbsoluteAtom() : Atom(definitionAbsolute) {}
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};
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} // namespace lld
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#endif // LLD_CORE_ABSOLUTE_ATOM_H
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