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//===- Binary.h - 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 declares the Binary class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_OBJECT_BINARY_H
#define LLVM_OBJECT_BINARY_H
#include "llvm/Object/Error.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/FileSystem.h"
namespace llvm {
class LLVMContext;
class MemoryBuffer;
class StringRef;
namespace object {
class Binary {
private:
Binary() LLVM_DELETED_FUNCTION;
Binary(const Binary &other) LLVM_DELETED_FUNCTION;
unsigned int TypeID;
protected:
std::unique_ptr<MemoryBuffer> Data;
Binary(unsigned int Type, MemoryBuffer *Source);
enum {
ID_Archive,
ID_MachOUniversalBinary,
ID_IR, // LLVM IR
// Object and children.
ID_StartObjects,
ID_COFF,
ID_ELF32L, // ELF 32-bit, little endian
ID_ELF32B, // ELF 32-bit, big endian
ID_ELF64L, // ELF 64-bit, little endian
ID_ELF64B, // ELF 64-bit, big endian
ID_MachO32L, // MachO 32-bit, little endian
ID_MachO32B, // MachO 32-bit, big endian
ID_MachO64L, // MachO 64-bit, little endian
ID_MachO64B, // MachO 64-bit, big endian
ID_EndObjects
};
static inline unsigned int getELFType(bool isLE, bool is64Bits) {
if (isLE)
return is64Bits ? ID_ELF64L : ID_ELF32L;
else
return is64Bits ? ID_ELF64B : ID_ELF32B;
}
static unsigned int getMachOType(bool isLE, bool is64Bits) {
if (isLE)
return is64Bits ? ID_MachO64L : ID_MachO32L;
else
return is64Bits ? ID_MachO64B : ID_MachO32B;
}
public:
virtual ~Binary();
StringRef getData() const;
MemoryBuffer *releaseBuffer() { return Data.release(); }
StringRef getFileName() const;
// Cast methods.
unsigned int getType() const { return TypeID; }
// Convenience methods
bool isObject() const {
return TypeID > ID_StartObjects && TypeID < ID_EndObjects;
}
bool isSymbolic() const {
return isIR() || isObject();
}
bool isArchive() const {
return TypeID == ID_Archive;
}
bool isMachOUniversalBinary() const {
return TypeID == ID_MachOUniversalBinary;
}
bool isELF() const {
return TypeID >= ID_ELF32L && TypeID <= ID_ELF64B;
}
bool isMachO() const {
return TypeID >= ID_MachO32L && TypeID <= ID_MachO64B;
}
bool isCOFF() const {
return TypeID == ID_COFF;
}
bool isIR() const {
return TypeID == ID_IR;
}
bool isLittleEndian() const {
return !(TypeID == ID_ELF32B || TypeID == ID_ELF64B ||
TypeID == ID_MachO32B || TypeID == ID_MachO64B);
}
};
/// @brief Create a Binary from Source, autodetecting the file type.
///
/// @param Source The data to create the Binary from. Ownership is transferred
/// to the Binary if successful. If an error is returned,
/// Source is destroyed by createBinary before returning.
ErrorOr<Binary *> createBinary(std::unique_ptr<MemoryBuffer> &Source,
LLVMContext *Context = nullptr);
ErrorOr<Binary *> createBinary(StringRef Path);
}
}
#endif
|
