1 //===- Binary.h - A generic binary file -------------------------*- C++ -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 // This file declares the Binary class.
11 //===----------------------------------------------------------------------===//
13 #ifndef LLVM_OBJECT_BINARY_H
14 #define LLVM_OBJECT_BINARY_H
16 #include "llvm-c/Types.h"
17 #include "llvm/ADT/Triple.h"
18 #include "llvm/Object/Error.h"
19 #include "llvm/Support/Error.h"
20 #include "llvm/Support/MemoryBuffer.h"
39 Binary(unsigned int Type, MemoryBufferRef Source);
43 ID_MachOUniversalBinary,
49 ID_WinRes, // Windows resource (.res) file.
51 // Object and children.
55 ID_XCOFF32, // AIX XCOFF 32-bit
56 ID_XCOFF64, // AIX XCOFF 64-bit
58 ID_ELF32L, // ELF 32-bit, little endian
59 ID_ELF32B, // ELF 32-bit, big endian
60 ID_ELF64L, // ELF 64-bit, little endian
61 ID_ELF64B, // ELF 64-bit, big endian
63 ID_MachO32L, // MachO 32-bit, little endian
64 ID_MachO32B, // MachO 32-bit, big endian
65 ID_MachO64L, // MachO 64-bit, little endian
66 ID_MachO64B, // MachO 64-bit, big endian
73 static inline unsigned int getELFType(bool isLE, bool is64Bits) {
75 return is64Bits ? ID_ELF64L : ID_ELF32L;
77 return is64Bits ? ID_ELF64B : ID_ELF32B;
80 static unsigned int getMachOType(bool isLE, bool is64Bits) {
82 return is64Bits ? ID_MachO64L : ID_MachO32L;
84 return is64Bits ? ID_MachO64B : ID_MachO32B;
89 Binary(const Binary &other) = delete;
92 StringRef getData() const;
93 StringRef getFileName() const;
94 MemoryBufferRef getMemoryBufferRef() const;
97 unsigned int getType() const { return TypeID; }
99 // Convenience methods
100 bool isObject() const {
101 return TypeID > ID_StartObjects && TypeID < ID_EndObjects;
104 bool isSymbolic() const { return isIR() || isObject() || isCOFFImportFile(); }
106 bool isArchive() const {
107 return TypeID == ID_Archive;
110 bool isMachOUniversalBinary() const {
111 return TypeID == ID_MachOUniversalBinary;
115 return TypeID >= ID_ELF32L && TypeID <= ID_ELF64B;
118 bool isMachO() const {
119 return TypeID >= ID_MachO32L && TypeID <= ID_MachO64B;
122 bool isCOFF() const {
123 return TypeID == ID_COFF;
126 bool isXCOFF() const { return TypeID == ID_XCOFF32 || TypeID == ID_XCOFF64; }
128 bool isWasm() const { return TypeID == ID_Wasm; }
130 bool isCOFFImportFile() const {
131 return TypeID == ID_COFFImportFile;
135 return TypeID == ID_IR;
138 bool isMinidump() const { return TypeID == ID_Minidump; }
140 bool isLittleEndian() const {
141 return !(TypeID == ID_ELF32B || TypeID == ID_ELF64B ||
142 TypeID == ID_MachO32B || TypeID == ID_MachO64B);
145 bool isWinRes() const { return TypeID == ID_WinRes; }
147 Triple::ObjectFormatType getTripleObjectFormat() const {
151 return Triple::MachO;
154 return Triple::UnknownObjectFormat;
157 static std::error_code checkOffset(MemoryBufferRef M, uintptr_t Addr,
158 const uint64_t Size) {
159 if (Addr + Size < Addr || Addr + Size < Size ||
160 Addr + Size > uintptr_t(M.getBufferEnd()) ||
161 Addr < uintptr_t(M.getBufferStart())) {
162 return object_error::unexpected_eof;
164 return std::error_code();
168 // Create wrappers for C Binding types (see CBindingWrapping.h).
169 DEFINE_ISA_CONVERSION_FUNCTIONS(Binary, LLVMBinaryRef)
171 /// Create a Binary from Source, autodetecting the file type.
173 /// @param Source The data to create the Binary from.
174 Expected<std::unique_ptr<Binary>> createBinary(MemoryBufferRef Source,
175 LLVMContext *Context = nullptr);
177 template <typename T> class OwningBinary {
178 std::unique_ptr<T> Bin;
179 std::unique_ptr<MemoryBuffer> Buf;
183 OwningBinary(std::unique_ptr<T> Bin, std::unique_ptr<MemoryBuffer> Buf);
184 OwningBinary(OwningBinary<T>&& Other);
185 OwningBinary<T> &operator=(OwningBinary<T> &&Other);
187 std::pair<std::unique_ptr<T>, std::unique_ptr<MemoryBuffer>> takeBinary();
190 const T* getBinary() const;
193 template <typename T>
194 OwningBinary<T>::OwningBinary(std::unique_ptr<T> Bin,
195 std::unique_ptr<MemoryBuffer> Buf)
196 : Bin(std::move(Bin)), Buf(std::move(Buf)) {}
198 template <typename T> OwningBinary<T>::OwningBinary() = default;
200 template <typename T>
201 OwningBinary<T>::OwningBinary(OwningBinary &&Other)
202 : Bin(std::move(Other.Bin)), Buf(std::move(Other.Buf)) {}
204 template <typename T>
205 OwningBinary<T> &OwningBinary<T>::operator=(OwningBinary &&Other) {
206 Bin = std::move(Other.Bin);
207 Buf = std::move(Other.Buf);
211 template <typename T>
212 std::pair<std::unique_ptr<T>, std::unique_ptr<MemoryBuffer>>
213 OwningBinary<T>::takeBinary() {
214 return std::make_pair(std::move(Bin), std::move(Buf));
217 template <typename T> T* OwningBinary<T>::getBinary() {
221 template <typename T> const T* OwningBinary<T>::getBinary() const {
225 Expected<OwningBinary<Binary>> createBinary(StringRef Path);
227 } // end namespace object
229 } // end namespace llvm
231 #endif // LLVM_OBJECT_BINARY_H