1 //===- SymbolicFile.cpp - Interface that only provides symbols ------------===//
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 a file format independent SymbolicFile class.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/Object/SymbolicFile.h"
15 #include "llvm/ADT/StringRef.h"
16 #include "llvm/BinaryFormat/Magic.h"
17 #include "llvm/Object/COFFImportFile.h"
18 #include "llvm/Object/Error.h"
19 #include "llvm/Object/IRObjectFile.h"
20 #include "llvm/Object/ObjectFile.h"
21 #include "llvm/Support/Compiler.h"
22 #include "llvm/Support/Error.h"
23 #include "llvm/Support/ErrorHandling.h"
24 #include "llvm/Support/ErrorOr.h"
25 #include "llvm/Support/FileSystem.h"
26 #include "llvm/Support/MemoryBuffer.h"
31 using namespace object;
33 SymbolicFile::SymbolicFile(unsigned int Type, MemoryBufferRef Source)
34 : Binary(Type, Source) {}
36 SymbolicFile::~SymbolicFile() = default;
38 Expected<std::unique_ptr<SymbolicFile>>
39 SymbolicFile::createSymbolicFile(MemoryBufferRef Object, file_magic Type,
40 LLVMContext *Context) {
41 StringRef Data = Object.getBuffer();
42 if (Type == file_magic::unknown)
43 Type = identify_magic(Data);
46 case file_magic::bitcode:
48 return IRObjectFile::create(Object, *Context);
50 case file_magic::unknown:
51 case file_magic::archive:
52 case file_magic::coff_cl_gl_object:
53 case file_magic::macho_universal_binary:
54 case file_magic::windows_resource:
55 return errorCodeToError(object_error::invalid_file_type);
57 case file_magic::elf_executable:
58 case file_magic::elf_shared_object:
59 case file_magic::elf_core:
60 case file_magic::macho_executable:
61 case file_magic::macho_fixed_virtual_memory_shared_lib:
62 case file_magic::macho_core:
63 case file_magic::macho_preload_executable:
64 case file_magic::macho_dynamically_linked_shared_lib:
65 case file_magic::macho_dynamic_linker:
66 case file_magic::macho_bundle:
67 case file_magic::macho_dynamically_linked_shared_lib_stub:
68 case file_magic::macho_dsym_companion:
69 case file_magic::macho_kext_bundle:
70 case file_magic::pecoff_executable:
71 case file_magic::wasm_object:
72 return ObjectFile::createObjectFile(Object, Type);
73 case file_magic::coff_import_library:
74 return std::unique_ptr<SymbolicFile>(new COFFImportFile(Object));
75 case file_magic::elf_relocatable:
76 case file_magic::macho_object:
77 case file_magic::coff_object: {
78 Expected<std::unique_ptr<ObjectFile>> Obj =
79 ObjectFile::createObjectFile(Object, Type);
81 return std::move(Obj);
83 Expected<MemoryBufferRef> BCData =
84 IRObjectFile::findBitcodeInObject(*Obj->get());
86 consumeError(BCData.takeError());
87 return std::move(Obj);
90 return IRObjectFile::create(
91 MemoryBufferRef(BCData->getBuffer(), Object.getBufferIdentifier()),
95 llvm_unreachable("Unexpected Binary File Type");