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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
74 lines
2.9 KiB
C++
74 lines
2.9 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 "llvm/ADT/StringRef.h"
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#include "llvm/ADT/Twine.h"
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#include <system_error>
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namespace llvm {
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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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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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wasm_object, ///< WebAssembly Object file
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pdb, ///< Windows PDB debug info 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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