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//===- MachOObject.cpp - Mach-O Object File Wrapper -----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Object/MachOObject.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/MemoryBuffer.h"
using namespace llvm;
using namespace object;
MachOObject::MachOObject(MemoryBuffer *Buffer_, bool IsLittleEndian_,
bool Is64Bit_)
: Buffer(Buffer_), IsLittleEndian(IsLittleEndian_), Is64Bit(Is64Bit_) {
}
MachOObject *MachOObject::LoadFromBuffer(MemoryBuffer *Buffer,
std::string *ErrorStr) {
// First, check the magic value and initialize the basic object info.
bool IsLittleEndian = false, Is64Bit = false;
StringRef Magic = Buffer->getBuffer().slice(0, 4);
if (Magic == "\xFE\xED\xFA\xCE") {
} else if (Magic == "\xCE\xFA\xED\xFE") {
IsLittleEndian = true;
} else if (Magic == "\xFE\xED\xFA\xCF") {
Is64Bit = true;
} else if (Magic == "\xCF\xFA\xED\xFE") {
IsLittleEndian = true;
Is64Bit = true;
} else {
*ErrorStr = "not a Mach object file";
return 0;
}
OwningPtr<MachOObject> Object(new MachOObject(Buffer, IsLittleEndian,
Is64Bit));
if (ErrorStr) *ErrorStr = "";
return Object.take();
}
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