1 //===- lib/ReaderWriter/MachO/FlatNamespaceFile.h -------------------------===// 2 // 3 // The LLVM Linker 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLD_READER_WRITER_MACHO_FLAT_NAMESPACE_FILE_H 11 #define LLD_READER_WRITER_MACHO_FLAT_NAMESPACE_FILE_H 12 13 #include "Atoms.h" 14 #include "lld/Core/SharedLibraryFile.h" 15 #include "lld/ReaderWriter/MachOLinkingContext.h" 16 #include "llvm/Support/Debug.h" 17 18 namespace lld { 19 namespace mach_o { 20 21 // 22 // A FlateNamespaceFile instance may be added as a resolution source of last 23 // resort, depending on how -flat_namespace and -undefined are set. 24 // 25 class FlatNamespaceFile : public SharedLibraryFile { 26 public: FlatNamespaceFile(const MachOLinkingContext & context)27 FlatNamespaceFile(const MachOLinkingContext &context) 28 : SharedLibraryFile("flat namespace") { } 29 exports(StringRef name)30 OwningAtomPtr<SharedLibraryAtom> exports(StringRef name) const override { 31 return new (allocator()) MachOSharedLibraryAtom(*this, name, getDSOName(), 32 false); 33 } 34 getDSOName()35 StringRef getDSOName() const override { return "flat-namespace"; } 36 defined()37 const AtomRange<DefinedAtom> defined() const override { 38 return _noDefinedAtoms; 39 } undefined()40 const AtomRange<UndefinedAtom> undefined() const override { 41 return _noUndefinedAtoms; 42 } 43 sharedLibrary()44 const AtomRange<SharedLibraryAtom> sharedLibrary() const override { 45 return _noSharedLibraryAtoms; 46 } 47 absolute()48 const AtomRange<AbsoluteAtom> absolute() const override { 49 return _noAbsoluteAtoms; 50 } 51 clearAtoms()52 void clearAtoms() override { 53 _noDefinedAtoms.clear(); 54 _noUndefinedAtoms.clear(); 55 _noSharedLibraryAtoms.clear(); 56 _noAbsoluteAtoms.clear(); 57 } 58 }; 59 60 } // namespace mach_o 61 } // namespace lld 62 63 #endif // LLD_READER_WRITER_MACHO_FLAT_NAMESPACE_FILE_H 64