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//===- Binary.cpp - A generic binary 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 the Binary class.
//
//===----------------------------------------------------------------------===//
#include "llvm/Object/Binary.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
// Include headers for createBinary.
#include "llvm/Object/Archive.h"
#include "llvm/Object/COFF.h"
#include "llvm/Object/MachOUniversal.h"
#include "llvm/Object/ObjectFile.h"
using namespace llvm;
using namespace object;
Binary::~Binary() {
delete Data;
}
Binary::Binary(unsigned int Type, MemoryBuffer *Source)
: TypeID(Type)
, Data(Source) {}
StringRef Binary::getData() const {
return Data->getBuffer();
}
StringRef Binary::getFileName() const {
return Data->getBufferIdentifier();
}
error_code object::createBinary(MemoryBuffer *Source,
OwningPtr<Binary> &Result) {
OwningPtr<MemoryBuffer> scopedSource(Source);
if (!Source)
return make_error_code(errc::invalid_argument);
sys::fs::file_magic type = sys::fs::identify_magic(Source->getBuffer());
error_code ec;
switch (type) {
case sys::fs::file_magic::archive: {
OwningPtr<Binary> ret(new Archive(scopedSource.take(), ec));
if (ec) return ec;
Result.swap(ret);
return object_error::success;
}
case sys::fs::file_magic::elf_relocatable:
case sys::fs::file_magic::elf_executable:
case sys::fs::file_magic::elf_shared_object:
case sys::fs::file_magic::elf_core: {
OwningPtr<Binary> ret(
ObjectFile::createELFObjectFile(scopedSource.take()));
if (!ret)
return object_error::invalid_file_type;
Result.swap(ret);
return object_error::success;
}
case sys::fs::file_magic::macho_object:
case sys::fs::file_magic::macho_executable:
case sys::fs::file_magic::macho_fixed_virtual_memory_shared_lib:
case sys::fs::file_magic::macho_core:
case sys::fs::file_magic::macho_preload_executable:
case sys::fs::file_magic::macho_dynamically_linked_shared_lib:
case sys::fs::file_magic::macho_dynamic_linker:
case sys::fs::file_magic::macho_bundle:
case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub:
case sys::fs::file_magic::macho_dsym_companion: {
OwningPtr<Binary> ret(
ObjectFile::createMachOObjectFile(scopedSource.take()));
if (!ret)
return object_error::invalid_file_type;
Result.swap(ret);
return object_error::success;
}
case sys::fs::file_magic::macho_universal_binary: {
OwningPtr<Binary> ret(new MachOUniversalBinary(scopedSource.take(), ec));
if (ec) return ec;
Result.swap(ret);
return object_error::success;
}
case sys::fs::file_magic::coff_object:
case sys::fs::file_magic::coff_import_library:
case sys::fs::file_magic::pecoff_executable: {
OwningPtr<Binary> ret(
ObjectFile::createCOFFObjectFile(scopedSource.take()));
if (!ret)
return object_error::invalid_file_type;
Result.swap(ret);
return object_error::success;
}
case sys::fs::file_magic::unknown:
case sys::fs::file_magic::bitcode:
case sys::fs::file_magic::windows_resource: {
// Unrecognized object file format.
return object_error::invalid_file_type;
}
}
llvm_unreachable("Unexpected Binary File Type");
}
error_code object::createBinary(StringRef Path, OwningPtr<Binary> &Result) {
OwningPtr<MemoryBuffer> File;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(Path, File))
return ec;
return createBinary(File.take(), Result);
}
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