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      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 
     19 using namespace llvm;
     20 using namespace object;
     21 
     22 SymbolicFile::SymbolicFile(unsigned int Type,
     23                            std::unique_ptr<MemoryBuffer> Source)
     24     : Binary(Type, std::move(Source)) {}
     25 
     26 SymbolicFile::~SymbolicFile() {}
     27 
     28 ErrorOr<SymbolicFile *>
     29 SymbolicFile::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