1 //===- lib/ReaderWriter/MachO/FlatNamespaceFile.h -------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLD_READER_WRITER_MACHO_FLAT_NAMESPACE_FILE_H 10 #define LLD_READER_WRITER_MACHO_FLAT_NAMESPACE_FILE_H 11 12 #include "Atoms.h" 13 #include "lld/Core/SharedLibraryFile.h" 14 #include "lld/ReaderWriter/MachOLinkingContext.h" 15 #include "llvm/Support/Debug.h" 16 17 namespace lld { 18 namespace mach_o { 19 20 // 21 // A FlateNamespaceFile instance may be added as a resolution source of last 22 // resort, depending on how -flat_namespace and -undefined are set. 23 // 24 class FlatNamespaceFile : public SharedLibraryFile { 25 public: FlatNamespaceFile(const MachOLinkingContext & context)26 FlatNamespaceFile(const MachOLinkingContext &context) 27 : SharedLibraryFile("flat namespace") { } 28 exports(StringRef name)29 OwningAtomPtr<SharedLibraryAtom> exports(StringRef name) const override { 30 return new (allocator()) MachOSharedLibraryAtom(*this, name, getDSOName(), 31 false); 32 } 33 getDSOName()34 StringRef getDSOName() const override { return "flat-namespace"; } 35 defined()36 const AtomRange<DefinedAtom> defined() const override { 37 return _noDefinedAtoms; 38 } undefined()39 const AtomRange<UndefinedAtom> undefined() const override { 40 return _noUndefinedAtoms; 41 } 42 sharedLibrary()43 const AtomRange<SharedLibraryAtom> sharedLibrary() const override { 44 return _noSharedLibraryAtoms; 45 } 46 absolute()47 const AtomRange<AbsoluteAtom> absolute() const override { 48 return _noAbsoluteAtoms; 49 } 50 clearAtoms()51 void clearAtoms() override { 52 _noDefinedAtoms.clear(); 53 _noUndefinedAtoms.clear(); 54 _noSharedLibraryAtoms.clear(); 55 _noAbsoluteAtoms.clear(); 56 } 57 }; 58 59 } // namespace mach_o 60 } // namespace lld 61 62 #endif // LLD_READER_WRITER_MACHO_FLAT_NAMESPACE_FILE_H 63