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78 lines
3.1 KiB
C++
78 lines
3.1 KiB
C++
//===- llvm/BinaryFormat/Magic.h - File magic identification ----*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_BINARYFORMAT_MAGIC_H
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#define LLVM_BINARYFORMAT_MAGIC_H
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#include <system_error>
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namespace llvm {
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class StringRef;
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class Twine;
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/// file_magic - An "enum class" enumeration of file types based on magic (the
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/// first N bytes of the file).
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struct file_magic {
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enum Impl {
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unknown = 0, ///< Unrecognized file
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bitcode, ///< Bitcode file
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archive, ///< ar style archive file
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elf, ///< ELF Unknown type
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elf_relocatable, ///< ELF Relocatable object file
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elf_executable, ///< ELF Executable image
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elf_shared_object, ///< ELF dynamically linked shared lib
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elf_core, ///< ELF core image
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macho_object, ///< Mach-O Object file
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macho_executable, ///< Mach-O Executable
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macho_fixed_virtual_memory_shared_lib, ///< Mach-O Shared Lib, FVM
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macho_core, ///< Mach-O Core File
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macho_preload_executable, ///< Mach-O Preloaded Executable
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macho_dynamically_linked_shared_lib, ///< Mach-O dynlinked shared lib
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macho_dynamic_linker, ///< The Mach-O dynamic linker
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macho_bundle, ///< Mach-O Bundle file
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macho_dynamically_linked_shared_lib_stub, ///< Mach-O Shared lib stub
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macho_dsym_companion, ///< Mach-O dSYM companion file
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macho_kext_bundle, ///< Mach-O kext bundle file
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macho_universal_binary, ///< Mach-O universal binary
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minidump, ///< Windows minidump file
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coff_cl_gl_object, ///< Microsoft cl.exe's intermediate code file
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coff_object, ///< COFF object file
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coff_import_library, ///< COFF import library
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pecoff_executable, ///< PECOFF executable file
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windows_resource, ///< Windows compiled resource file (.res)
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xcoff_object_32, ///< 32-bit XCOFF object file
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xcoff_object_64, ///< 64-bit XCOFF object file
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wasm_object, ///< WebAssembly Object file
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pdb, ///< Windows PDB debug info file
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tapi_file, ///< Text-based Dynamic Library Stub file
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};
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bool is_object() const { return V != unknown; }
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file_magic() = default;
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file_magic(Impl V) : V(V) {}
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operator Impl() const { return V; }
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private:
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Impl V = unknown;
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};
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/// Identify the type of a binary file based on how magical it is.
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file_magic identify_magic(StringRef magic);
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/// Get and identify \a path's type based on its content.
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///
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/// @param path Input path.
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/// @param result Set to the type of file, or file_magic::unknown.
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/// @returns errc::success if result has been successfully set, otherwise a
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/// platform-specific error_code.
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std::error_code identify_magic(const Twine &path, file_magic &result);
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} // namespace llvm
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#endif
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