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//===- Core/SharedLibraryFile.h - Models shared libraries as Atoms --------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLD_CORE_SHARED_LIBRARY_FILE_H
#define LLD_CORE_SHARED_LIBRARY_FILE_H
#include "lld/Core/File.h"
namespace lld {
///
/// The SharedLibraryFile subclass of File is used to represent dynamic
/// shared libraries being linked against.
///
class SharedLibraryFile : public File {
public:
static bool classof(const File *f) {
return f->kind() == kindSharedLibrary;
}
/// Check if the shared library exports a symbol with the specified name.
/// If so, return a SharedLibraryAtom which represents that exported
/// symbol. Otherwise return nullptr.
virtual OwningAtomPtr<SharedLibraryAtom> exports(StringRef name) const = 0;
// Returns the install name.
virtual StringRef getDSOName() const = 0;
const AtomRange<DefinedAtom> defined() const override {
return _definedAtoms;
}
const AtomRange<UndefinedAtom> undefined() const override {
return _undefinedAtoms;
}
const AtomRange<SharedLibraryAtom> sharedLibrary() const override {
return _sharedLibraryAtoms;
}
const AtomRange<AbsoluteAtom> absolute() const override {
return _absoluteAtoms;
}
void clearAtoms() override {
_definedAtoms.clear();
_undefinedAtoms.clear();
_sharedLibraryAtoms.clear();
_absoluteAtoms.clear();
}
protected:
/// only subclasses of SharedLibraryFile can be instantiated
explicit SharedLibraryFile(StringRef path) : File(path, kindSharedLibrary) {}
AtomVector<DefinedAtom> _definedAtoms;
AtomVector<UndefinedAtom> _undefinedAtoms;
AtomVector<SharedLibraryAtom> _sharedLibraryAtoms;
AtomVector<AbsoluteAtom> _absoluteAtoms;
};
} // namespace lld
#endif // LLD_CORE_SHARED_LIBRARY_FILE_H
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