1 //===- SymbolicFile.cpp - Interface that only provides symbols --*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file defines a file format independent SymbolicFile class. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/Object/COFF.h" 15 #include "llvm/Object/COFFImportFile.h" 16 #include "llvm/Object/IRObjectFile.h" 17 #include "llvm/Object/ObjectFile.h" 18 #include "llvm/Object/SymbolicFile.h" 19 #include "llvm/Support/MemoryBuffer.h" 20 21 using namespace llvm; 22 using namespace object; 23 24 SymbolicFile::SymbolicFile(unsigned int Type, MemoryBufferRef Source) 25 : Binary(Type, Source) {} 26 27 SymbolicFile::~SymbolicFile() {} 28 29 Expected<std::unique_ptr<SymbolicFile>> SymbolicFile::createSymbolicFile( 30 MemoryBufferRef Object, sys::fs::file_magic Type, LLVMContext *Context) { 31 StringRef Data = Object.getBuffer(); 32 if (Type == sys::fs::file_magic::unknown) 33 Type = sys::fs::identify_magic(Data); 34 35 switch (Type) { 36 case sys::fs::file_magic::bitcode: 37 if (Context) 38 return errorOrToExpected(IRObjectFile::create(Object, *Context)); 39 // Fallthrough 40 case sys::fs::file_magic::unknown: 41 case sys::fs::file_magic::archive: 42 case sys::fs::file_magic::macho_universal_binary: 43 case sys::fs::file_magic::windows_resource: 44 return errorCodeToError(object_error::invalid_file_type); 45 case sys::fs::file_magic::elf: 46 case sys::fs::file_magic::elf_executable: 47 case sys::fs::file_magic::elf_shared_object: 48 case sys::fs::file_magic::elf_core: 49 case sys::fs::file_magic::macho_executable: 50 case sys::fs::file_magic::macho_fixed_virtual_memory_shared_lib: 51 case sys::fs::file_magic::macho_core: 52 case sys::fs::file_magic::macho_preload_executable: 53 case sys::fs::file_magic::macho_dynamically_linked_shared_lib: 54 case sys::fs::file_magic::macho_dynamic_linker: 55 case sys::fs::file_magic::macho_bundle: 56 case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub: 57 case sys::fs::file_magic::macho_dsym_companion: 58 case sys::fs::file_magic::macho_kext_bundle: 59 case sys::fs::file_magic::pecoff_executable: 60 return ObjectFile::createObjectFile(Object, Type); 61 case sys::fs::file_magic::coff_import_library: 62 return std::unique_ptr<SymbolicFile>(new COFFImportFile(Object)); 63 case sys::fs::file_magic::elf_relocatable: 64 case sys::fs::file_magic::macho_object: 65 case sys::fs::file_magic::coff_object: { 66 Expected<std::unique_ptr<ObjectFile>> Obj = 67 ObjectFile::createObjectFile(Object, Type); 68 if (!Obj || !Context) 69 return std::move(Obj); 70 71 ErrorOr<MemoryBufferRef> BCData = 72 IRObjectFile::findBitcodeInObject(*Obj->get()); 73 if (!BCData) 74 return std::move(Obj); 75 76 return errorOrToExpected(IRObjectFile::create( 77 MemoryBufferRef(BCData->getBuffer(), 78 Object.getBufferIdentifier()), *Context)); 79 } 80 } 81 llvm_unreachable("Unexpected Binary File Type"); 82 } 83
