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