1 //===- Binary.cpp - A generic binary file -----------------------*- 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 the Binary class. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/Object/Binary.h" 15 #include "llvm/ADT/StringRef.h" 16 #include "llvm/Support/FileSystem.h" 17 #include "llvm/Support/MemoryBuffer.h" 18 #include "llvm/Support/Path.h" 19 20 // Include headers for createBinary. 21 #include "llvm/Object/Archive.h" 22 #include "llvm/Object/MachOUniversal.h" 23 #include "llvm/Object/ObjectFile.h" 24 25 using namespace llvm; 26 using namespace object; 27 28 Binary::~Binary() {} 29 30 Binary::Binary(unsigned int Type, std::unique_ptr<MemoryBuffer> Source) 31 : TypeID(Type), Data(std::move(Source)) {} 32 33 StringRef Binary::getData() const { 34 return Data->getBuffer(); 35 } 36 37 StringRef Binary::getFileName() const { 38 return Data->getBufferIdentifier(); 39 } 40 41 ErrorOr<Binary *> object::createBinary(std::unique_ptr<MemoryBuffer> &Buffer, 42 LLVMContext *Context) { 43 sys::fs::file_magic Type = sys::fs::identify_magic(Buffer->getBuffer()); 44 45 switch (Type) { 46 case sys::fs::file_magic::archive: 47 return Archive::create(std::move(Buffer)); 48 case sys::fs::file_magic::elf_relocatable: 49 case sys::fs::file_magic::elf_executable: 50 case sys::fs::file_magic::elf_shared_object: 51 case sys::fs::file_magic::elf_core: 52 case sys::fs::file_magic::macho_object: 53 case sys::fs::file_magic::macho_executable: 54 case sys::fs::file_magic::macho_fixed_virtual_memory_shared_lib: 55 case sys::fs::file_magic::macho_core: 56 case sys::fs::file_magic::macho_preload_executable: 57 case sys::fs::file_magic::macho_dynamically_linked_shared_lib: 58 case sys::fs::file_magic::macho_dynamic_linker: 59 case sys::fs::file_magic::macho_bundle: 60 case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub: 61 case sys::fs::file_magic::macho_dsym_companion: 62 case sys::fs::file_magic::coff_object: 63 case sys::fs::file_magic::coff_import_library: 64 case sys::fs::file_magic::pecoff_executable: 65 case sys::fs::file_magic::bitcode: 66 return ObjectFile::createSymbolicFile(Buffer, Type, Context); 67 case sys::fs::file_magic::macho_universal_binary: 68 return MachOUniversalBinary::create(std::move(Buffer)); 69 case sys::fs::file_magic::unknown: 70 case sys::fs::file_magic::windows_resource: 71 // Unrecognized object file format. 72 return object_error::invalid_file_type; 73 } 74 llvm_unreachable("Unexpected Binary File Type"); 75 } 76 77 ErrorOr<Binary *> object::createBinary(StringRef Path) { 78 ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr = 79 MemoryBuffer::getFileOrSTDIN(Path); 80 if (std::error_code EC = FileOrErr.getError()) 81 return EC; 82 return createBinary(FileOrErr.get()); 83 } 84
