| //===- ObjectFile.cpp - File format independent object file -----*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines a file format independent ObjectFile class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/Object/ObjectFile.h" |
| #include "llvm/ADT/OwningPtr.h" |
| #include "llvm/Support/ErrorHandling.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include "llvm/Support/Path.h" |
| #include "llvm/Support/system_error.h" |
| |
| using namespace llvm; |
| using namespace object; |
| |
| void ObjectFile::anchor() { } |
| |
| ObjectFile::ObjectFile(unsigned int Type, MemoryBuffer *source, error_code &ec) |
| : Binary(Type, source) { |
| } |
| |
| ObjectFile *ObjectFile::createObjectFile(MemoryBuffer *Object) { |
| if (!Object || Object->getBufferSize() < 64) |
| return 0; |
| sys::LLVMFileType type = sys::IdentifyFileType(Object->getBufferStart(), |
| static_cast<unsigned>(Object->getBufferSize())); |
| switch (type) { |
| case sys::ELF_Relocatable_FileType: |
| case sys::ELF_Executable_FileType: |
| case sys::ELF_SharedObject_FileType: |
| case sys::ELF_Core_FileType: |
| return createELFObjectFile(Object); |
| case sys::Mach_O_Object_FileType: |
| case sys::Mach_O_Executable_FileType: |
| case sys::Mach_O_FixedVirtualMemorySharedLib_FileType: |
| case sys::Mach_O_Core_FileType: |
| case sys::Mach_O_PreloadExecutable_FileType: |
| case sys::Mach_O_DynamicallyLinkedSharedLib_FileType: |
| case sys::Mach_O_DynamicLinker_FileType: |
| case sys::Mach_O_Bundle_FileType: |
| case sys::Mach_O_DynamicallyLinkedSharedLibStub_FileType: |
| case sys::Mach_O_DSYMCompanion_FileType: |
| return createMachOObjectFile(Object); |
| case sys::COFF_FileType: |
| return createCOFFObjectFile(Object); |
| default: |
| llvm_unreachable("Unknown Object File Type"); |
| } |
| } |
| |
| ObjectFile *ObjectFile::createObjectFile(StringRef ObjectPath) { |
| OwningPtr<MemoryBuffer> File; |
| if (error_code ec = MemoryBuffer::getFile(ObjectPath, File)) |
| return NULL; |
| return createObjectFile(File.take()); |
| } |