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 IRObjectFile::create(Object, *Context); 39 LLVM_FALLTHROUGH; 40 case sys::fs::file_magic::unknown: 41 case sys::fs::file_magic::archive: 42 case sys::fs::file_magic::coff_cl_gl_object: 43 case sys::fs::file_magic::macho_universal_binary: 44 case sys::fs::file_magic::windows_resource: 45 return errorCodeToError(object_error::invalid_file_type); 46 case sys::fs::file_magic::elf: 47 case sys::fs::file_magic::elf_executable: 48 case sys::fs::file_magic::elf_shared_object: 49 case sys::fs::file_magic::elf_core: 50 case sys::fs::file_magic::macho_executable: 51 case sys::fs::file_magic::macho_fixed_virtual_memory_shared_lib: 52 case sys::fs::file_magic::macho_core: 53 case sys::fs::file_magic::macho_preload_executable: 54 case sys::fs::file_magic::macho_dynamically_linked_shared_lib: 55 case sys::fs::file_magic::macho_dynamic_linker: 56 case sys::fs::file_magic::macho_bundle: 57 case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub: 58 case sys::fs::file_magic::macho_dsym_companion: 59 case sys::fs::file_magic::macho_kext_bundle: 60 case sys::fs::file_magic::pecoff_executable: 61 return ObjectFile::createObjectFile(Object, Type); 62 case sys::fs::file_magic::coff_import_library: 63 return std::unique_ptr<SymbolicFile>(new COFFImportFile(Object)); 64 case sys::fs::file_magic::elf_relocatable: 65 case sys::fs::file_magic::macho_object: 66 case sys::fs::file_magic::coff_object: { 67 Expected<std::unique_ptr<ObjectFile>> Obj = 68 ObjectFile::createObjectFile(Object, Type); 69 if (!Obj || !Context) 70 return std::move(Obj); 71 72 ErrorOr<MemoryBufferRef> BCData = 73 IRObjectFile::findBitcodeInObject(*Obj->get()); 74 if (!BCData) 75 return std::move(Obj); 76 77 return IRObjectFile::create( 78 MemoryBufferRef(BCData->getBuffer(), Object.getBufferIdentifier()), 79 *Context); 80 } 81 } 82 llvm_unreachable("Unexpected Binary File Type"); 83 } 84