SymbolicFile.cpp revision cd81d94322a39503e4a3e87b6ee03d4fcb3465fb 
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/IRObjectFile.h"
15#include "llvm/Object/ObjectFile.h"
16#include "llvm/Object/SymbolicFile.h"
17#include "llvm/Support/MemoryBuffer.h"
18
19using namespace llvm;
20using namespace object;
21
22SymbolicFile::SymbolicFile(unsigned int Type,
23                           std::unique_ptr<MemoryBuffer> Source)
24    : Binary(Type, std::move(Source)) {}
25
26SymbolicFile::~SymbolicFile() {}
27
28ErrorOr<SymbolicFile *>
29SymbolicFile::createSymbolicFile(std::unique_ptr<MemoryBuffer> &Object,
30                                 sys::fs::file_magic Type,
31                                 LLVMContext *Context) {
32  if (Type == sys::fs::file_magic::unknown)
33    Type = sys::fs::identify_magic(Object->getBuffer());
34
35  switch (Type) {
36  case sys::fs::file_magic::bitcode:
37    if (Context)
38      return IRObjectFile::createIRObjectFile(std::move(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 object_error::invalid_file_type;
45  case sys::fs::file_magic::elf_relocatable:
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_object:
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::coff_object:
60  case sys::fs::file_magic::coff_import_library:
61  case sys::fs::file_magic::pecoff_executable:
62    return ObjectFile::createObjectFile(Object, Type);
63  }
64  llvm_unreachable("Unexpected Binary File Type");
65}
66