1 files changed, 0 insertions, 233 deletions
diff --git a/lib/BinaryFormat/Magic.cpp b/lib/BinaryFormat/Magic.cpp
deleted file mode 100644
index bbcbbabededbe..0000000000000
--- a/lib/BinaryFormat/Magic.cpp
+++ /dev/null
@@ -1,233 +0,0 @@
-//===- llvm/BinaryFormat/Magic.cpp - File magic identification --*- C++ -*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/BinaryFormat/Magic.h"
-
-#include "llvm/BinaryFormat/COFF.h"
-#include "llvm/BinaryFormat/ELF.h"
-#include "llvm/BinaryFormat/MachO.h"
-#include "llvm/Support/Endian.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/MemoryBuffer.h"
-
-#if !defined(_MSC_VER) && !defined(__MINGW32__)
-#include <unistd.h>
-#else
-#include <io.h>
-#endif
-
-using namespace llvm;
-using namespace llvm::support::endian;
-using namespace llvm::sys::fs;
-
-template <size_t N>
-static bool startswith(StringRef Magic, const char (&S)[N]) {
-  return Magic.startswith(StringRef(S, N - 1));
-}
-
-/// Identify the magic in magic.
-file_magic llvm::identify_magic(StringRef Magic) {
-  if (Magic.size() < 4)
-    return file_magic::unknown;
-  switch ((unsigned char)Magic[0]) {
-  case 0x00: {
-    // COFF bigobj, CL.exe's LTO object file, or short import library file
-    if (startswith(Magic, "\0\0\xFF\xFF")) {
-      size_t MinSize =
-          offsetof(COFF::BigObjHeader, UUID) + sizeof(COFF::BigObjMagic);
-      if (Magic.size() < MinSize)
-        return file_magic::coff_import_library;
-
-      const char *Start = Magic.data() + offsetof(COFF::BigObjHeader, UUID);
-      if (memcmp(Start, COFF::BigObjMagic, sizeof(COFF::BigObjMagic)) == 0)
-        return file_magic::coff_object;
-      if (memcmp(Start, COFF::ClGlObjMagic, sizeof(COFF::BigObjMagic)) == 0)
-        return file_magic::coff_cl_gl_object;
-      return file_magic::coff_import_library;
-    }
-    // Windows resource file
-    if (Magic.size() >= sizeof(COFF::WinResMagic) &&
-        memcmp(Magic.data(), COFF::WinResMagic, sizeof(COFF::WinResMagic)) == 0)
-      return file_magic::windows_resource;
-    // 0x0000 = COFF unknown machine type
-    if (Magic[1] == 0)
-      return file_magic::coff_object;
-    if (startswith(Magic, "\0asm"))
-      return file_magic::wasm_object;
-    break;
-  }
-
-  case 0x01:
-    // XCOFF format
-    if (startswith(Magic, "\x01\xDF"))
-      return file_magic::xcoff_object_32;
-    if (startswith(Magic, "\x01\xF7"))
-      return file_magic::xcoff_object_64;
-    break;
-
-  case 0xDE: // 0x0B17C0DE = BC wraper
-    if (startswith(Magic, "\xDE\xC0\x17\x0B"))
-      return file_magic::bitcode;
-    break;
-  case 'B':
-    if (startswith(Magic, "BC\xC0\xDE"))
-      return file_magic::bitcode;
-    break;
-  case '!':
-    if (startswith(Magic, "!<arch>\n") || startswith(Magic, "!<thin>\n"))
-      return file_magic::archive;
-    break;
-
-  case '\177':
-    if (startswith(Magic, "\177ELF") && Magic.size() >= 18) {
-      bool Data2MSB = Magic[5] == 2;
-      unsigned high = Data2MSB ? 16 : 17;
-      unsigned low = Data2MSB ? 17 : 16;
-      if (Magic[high] == 0) {
-        switch (Magic[low]) {
-        default:
-          return file_magic::elf;
-        case 1:
-          return file_magic::elf_relocatable;
-        case 2:
-          return file_magic::elf_executable;
-        case 3:
-          return file_magic::elf_shared_object;
-        case 4:
-          return file_magic::elf_core;
-        }
-      }
-      // It's still some type of ELF file.
-      return file_magic::elf;
-    }
-    break;
-
-  case 0xCA:
-    if (startswith(Magic, "\xCA\xFE\xBA\xBE") ||
-        startswith(Magic, "\xCA\xFE\xBA\xBF")) {
-      // This is complicated by an overlap with Java class files.
-      // See the Mach-O section in /usr/share/file/magic for details.
-      if (Magic.size() >= 8 && Magic[7] < 43)
-        return file_magic::macho_universal_binary;
-    }
-    break;
-
-  // The two magic numbers for mach-o are:
-  // 0xfeedface - 32-bit mach-o
-  // 0xfeedfacf - 64-bit mach-o
-  case 0xFE:
-  case 0xCE:
-  case 0xCF: {
-    uint16_t type = 0;
-    if (startswith(Magic, "\xFE\xED\xFA\xCE") ||
-        startswith(Magic, "\xFE\xED\xFA\xCF")) {
-      /* Native endian */
-      size_t MinSize;
-      if (Magic[3] == char(0xCE))
-        MinSize = sizeof(MachO::mach_header);
-      else
-        MinSize = sizeof(MachO::mach_header_64);
-      if (Magic.size() >= MinSize)
-        type = Magic[12] << 24 | Magic[13] << 12 | Magic[14] << 8 | Magic[15];
-    } else if (startswith(Magic, "\xCE\xFA\xED\xFE") ||
-               startswith(Magic, "\xCF\xFA\xED\xFE")) {
-      /* Reverse endian */
-      size_t MinSize;
-      if (Magic[0] == char(0xCE))
-        MinSize = sizeof(MachO::mach_header);
-      else
-        MinSize = sizeof(MachO::mach_header_64);
-      if (Magic.size() >= MinSize)
-        type = Magic[15] << 24 | Magic[14] << 12 | Magic[13] << 8 | Magic[12];
-    }
-    switch (type) {
-    default:
-      break;
-    case 1:
-      return file_magic::macho_object;
-    case 2:
-      return file_magic::macho_executable;
-    case 3:
-      return file_magic::macho_fixed_virtual_memory_shared_lib;
-    case 4:
-      return file_magic::macho_core;
-    case 5:
-      return file_magic::macho_preload_executable;
-    case 6:
-      return file_magic::macho_dynamically_linked_shared_lib;
-    case 7:
-      return file_magic::macho_dynamic_linker;
-    case 8:
-      return file_magic::macho_bundle;
-    case 9:
-      return file_magic::macho_dynamically_linked_shared_lib_stub;
-    case 10:
-      return file_magic::macho_dsym_companion;
-    case 11:
-      return file_magic::macho_kext_bundle;
-    }
-    break;
-  }
-  case 0xF0: // PowerPC Windows
-  case 0x83: // Alpha 32-bit
-  case 0x84: // Alpha 64-bit
-  case 0x66: // MPS R4000 Windows
-  case 0x50: // mc68K
-  case 0x4c: // 80386 Windows
-  case 0xc4: // ARMNT Windows
-    if (Magic[1] == 0x01)
-      return file_magic::coff_object;
-    LLVM_FALLTHROUGH;
-
-  case 0x90: // PA-RISC Windows
-  case 0x68: // mc68K Windows
-    if (Magic[1] == 0x02)
-      return file_magic::coff_object;
-    break;
-
-  case 'M': // Possible MS-DOS stub on Windows PE file, MSF/PDB file or a
-            // Minidump file.
-    if (startswith(Magic, "MZ") && Magic.size() >= 0x3c + 4) {
-      uint32_t off = read32le(Magic.data() + 0x3c);
-      // PE/COFF file, either EXE or DLL.
-      if (Magic.substr(off).startswith(
-              StringRef(COFF::PEMagic, sizeof(COFF::PEMagic))))
-        return file_magic::pecoff_executable;
-    }
-    if (Magic.startswith("Microsoft C/C++ MSF 7.00\r\n"))
-      return file_magic::pdb;
-    if (startswith(Magic, "MDMP"))
-      return file_magic::minidump;
-    break;
-
-  case 0x64: // x86-64 or ARM64 Windows.
-    if (Magic[1] == char(0x86) || Magic[1] == char(0xaa))
-      return file_magic::coff_object;
-    break;
-
-  case 0x2d: // YAML '-'
-    if (startswith(Magic, "--- !tapi") || startswith(Magic, "---\narchs:"))
-      return file_magic::tapi_file;
-    break;
-
-  default:
-    break;
-  }
-  return file_magic::unknown;
-}
-
-std::error_code llvm::identify_magic(const Twine &Path, file_magic &Result) {
-  auto FileOrError = MemoryBuffer::getFile(Path, -1LL, false);
-  if (!FileOrError)
-    return FileOrError.getError();
-
-  std::unique_ptr<MemoryBuffer> FileBuffer = std::move(*FileOrError);
-  Result = identify_magic(FileBuffer->getBuffer());
-
-  return std::error_code();
-}