1 //===- Binary.cpp - A generic binary file -----------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the Binary class.
12 //===----------------------------------------------------------------------===//
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"
20 // Include headers for createBinary.
21 #include "llvm/Object/Archive.h"
22 #include "llvm/Object/MachOUniversal.h"
23 #include "llvm/Object/ObjectFile.h"
26 using namespace object;
30 Binary::Binary(unsigned int Type, MemoryBufferRef Source)
31 : TypeID(Type), Data(Source) {}
33 StringRef Binary::getData() const { return Data.getBuffer(); }
35 StringRef Binary::getFileName() const { return Data.getBufferIdentifier(); }
37 MemoryBufferRef Binary::getMemoryBufferRef() const { return Data; }
39 Expected<std::unique_ptr<Binary>> object::createBinary(MemoryBufferRef Buffer,
40 LLVMContext *Context) {
41 sys::fs::file_magic Type = sys::fs::identify_magic(Buffer.getBuffer());
44 case sys::fs::file_magic::archive:
45 return Archive::create(Buffer);
46 case sys::fs::file_magic::elf:
47 case sys::fs::file_magic::elf_relocatable:
48 case sys::fs::file_magic::elf_executable:
49 case sys::fs::file_magic::elf_shared_object:
50 case sys::fs::file_magic::elf_core:
51 case sys::fs::file_magic::macho_object:
52 case sys::fs::file_magic::macho_executable:
53 case sys::fs::file_magic::macho_fixed_virtual_memory_shared_lib:
54 case sys::fs::file_magic::macho_core:
55 case sys::fs::file_magic::macho_preload_executable:
56 case sys::fs::file_magic::macho_dynamically_linked_shared_lib:
57 case sys::fs::file_magic::macho_dynamic_linker:
58 case sys::fs::file_magic::macho_bundle:
59 case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub:
60 case sys::fs::file_magic::macho_dsym_companion:
61 case sys::fs::file_magic::macho_kext_bundle:
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(Buffer);
69 case sys::fs::file_magic::unknown:
70 case sys::fs::file_magic::windows_resource:
71 // Unrecognized object file format.
72 return errorCodeToError(object_error::invalid_file_type);
74 llvm_unreachable("Unexpected Binary File Type");
77 Expected<OwningBinary<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 errorCodeToError(EC);
82 std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get();
84 Expected<std::unique_ptr<Binary>> BinOrErr =
85 createBinary(Buffer->getMemBufferRef());
87 return BinOrErr.takeError();
88 std::unique_ptr<Binary> &Bin = BinOrErr.get();
90 return OwningBinary<Binary>(std::move(Bin), std::move(Buffer));