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127 lines
3.0 KiB
C++
127 lines
3.0 KiB
C++
//===- Binary.h - A generic binary file -------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the Binary class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_OBJECT_BINARY_H
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#define LLVM_OBJECT_BINARY_H
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#include "llvm/ADT/OwningPtr.h"
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#include "llvm/Object/Error.h"
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namespace llvm {
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class MemoryBuffer;
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class StringRef;
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namespace object {
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class Binary {
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private:
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Binary() LLVM_DELETED_FUNCTION;
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Binary(const Binary &other) LLVM_DELETED_FUNCTION;
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unsigned int TypeID;
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protected:
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MemoryBuffer *Data;
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Binary(unsigned int Type, MemoryBuffer *Source);
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enum {
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ID_Archive,
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ID_MachOUniversalBinary,
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// Object and children.
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ID_StartObjects,
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ID_COFF,
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ID_ELF32L, // ELF 32-bit, little endian
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ID_ELF32B, // ELF 32-bit, big endian
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ID_ELF64L, // ELF 64-bit, little endian
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ID_ELF64B, // ELF 64-bit, big endian
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ID_MachO32L, // MachO 32-bit, little endian
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ID_MachO32B, // MachO 32-bit, big endian
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ID_MachO64L, // MachO 64-bit, little endian
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ID_MachO64B, // MachO 64-bit, big endian
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ID_EndObjects
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};
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static inline unsigned int getELFType(bool isLE, bool is64Bits) {
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if (isLE)
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return is64Bits ? ID_ELF64L : ID_ELF32L;
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else
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return is64Bits ? ID_ELF64B : ID_ELF32B;
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}
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static unsigned int getMachOType(bool isLE, bool is64Bits) {
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if (isLE)
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return is64Bits ? ID_MachO64L : ID_MachO32L;
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else
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return is64Bits ? ID_MachO64B : ID_MachO32B;
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}
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public:
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virtual ~Binary();
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StringRef getData() const;
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StringRef getFileName() const;
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// Cast methods.
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unsigned int getType() const { return TypeID; }
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// Convenience methods
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bool isObject() const {
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return TypeID > ID_StartObjects && TypeID < ID_EndObjects;
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}
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bool isArchive() const {
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return TypeID == ID_Archive;
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}
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bool isMachOUniversalBinary() const {
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return TypeID == ID_MachOUniversalBinary;
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}
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bool isELF() const {
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return TypeID >= ID_ELF32L && TypeID <= ID_ELF64B;
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}
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bool isMachO() const {
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return TypeID >= ID_MachO32L && TypeID <= ID_MachO64B;
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}
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bool isCOFF() const {
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return TypeID == ID_COFF;
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}
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bool isLittleEndian() const {
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return !(TypeID == ID_ELF32B || TypeID == ID_ELF64B ||
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TypeID == ID_MachO32B || TypeID == ID_MachO64B);
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}
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};
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/// @brief Create a Binary from Source, autodetecting the file type.
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///
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/// @param Source The data to create the Binary from. Ownership is transferred
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/// to Result if successful. If an error is returned, Source is destroyed
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/// by createBinary before returning.
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/// @param Result A pointer to the resulting Binary if no error occured.
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error_code createBinary(MemoryBuffer *Source, OwningPtr<Binary> &Result);
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error_code createBinary(StringRef Path, OwningPtr<Binary> &Result);
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}
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}
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#endif
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