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, MemoryBufferRef Source) 23 : Binary(Type, Source) {} 24 25 SymbolicFile::~SymbolicFile() {} 26 27 ErrorOr<std::unique_ptr<SymbolicFile>> SymbolicFile::createSymbolicFile( 28 MemoryBufferRef Object, sys::fs::file_magic Type, LLVMContext *Context) { 29 StringRef Data = Object.getBuffer(); 30 if (Type == sys::fs::file_magic::unknown) 31 Type = sys::fs::identify_magic(Data); 32 33 switch (Type) { 34 case sys::fs::file_magic::bitcode: 35 if (Context) 36 return IRObjectFile::create(Object, *Context); 37 // Fallthrough 38 case sys::fs::file_magic::unknown: 39 case sys::fs::file_magic::archive: 40 case sys::fs::file_magic::macho_universal_binary: 41 case sys::fs::file_magic::windows_resource: 42 return object_error::invalid_file_type; 43 case sys::fs::file_magic::elf: 44 case sys::fs::file_magic::elf_executable: 45 case sys::fs::file_magic::elf_shared_object: 46 case sys::fs::file_magic::elf_core: 47 case sys::fs::file_magic::macho_executable: 48 case sys::fs::file_magic::macho_fixed_virtual_memory_shared_lib: 49 case sys::fs::file_magic::macho_core: 50 case sys::fs::file_magic::macho_preload_executable: 51 case sys::fs::file_magic::macho_dynamically_linked_shared_lib: 52 case sys::fs::file_magic::macho_dynamic_linker: 53 case sys::fs::file_magic::macho_bundle: 54 case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub: 55 case sys::fs::file_magic::macho_dsym_companion: 56 case sys::fs::file_magic::macho_kext_bundle: 57 case sys::fs::file_magic::coff_import_library: 58 case sys::fs::file_magic::pecoff_executable: 59 return ObjectFile::createObjectFile(Object, Type); 60 case sys::fs::file_magic::elf_relocatable: 61 case sys::fs::file_magic::macho_object: 62 case sys::fs::file_magic::coff_object: { 63 ErrorOr<std::unique_ptr<ObjectFile>> Obj = 64 ObjectFile::createObjectFile(Object, Type); 65 if (!Obj || !Context) 66 return std::move(Obj); 67 68 ErrorOr<MemoryBufferRef> BCData = 69 IRObjectFile::findBitcodeInObject(*Obj->get()); 70 if (!BCData) 71 return std::move(Obj); 72 73 return IRObjectFile::create( 74 MemoryBufferRef(BCData->getBuffer(), Object.getBufferIdentifier()), 75 *Context); 76 } 77 } 78 llvm_unreachable("Unexpected Binary File Type"); 79 } 80
