1 files changed, 97 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Object/Binary.cpp b/contrib/llvm/lib/Object/Binary.cpp
new file mode 100644
index 000000000000..2b44c4a82d2c
--- /dev/null
+++ b/contrib/llvm/lib/Object/Binary.cpp
@@ -0,0 +1,97 @@
+//===- Binary.cpp - A generic binary file ---------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the Binary class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Object/Archive.h"
+#include "llvm/Object/Binary.h"
+#include "llvm/Object/Error.h"
+#include "llvm/Object/MachOUniversal.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/ErrorOr.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include <algorithm>
+#include <memory>
+#include <system_error>
+
+using namespace llvm;
+using namespace object;
+
+Binary::~Binary() = default;
+
+Binary::Binary(unsigned int Type, MemoryBufferRef Source)
+    : TypeID(Type), Data(Source) {}
+
+StringRef Binary::getData() const { return Data.getBuffer(); }
+
+StringRef Binary::getFileName() const { return Data.getBufferIdentifier(); }
+
+MemoryBufferRef Binary::getMemoryBufferRef() const { return Data; }
+
+Expected<std::unique_ptr<Binary>> object::createBinary(MemoryBufferRef Buffer,
+                                                      LLVMContext *Context) {
+  sys::fs::file_magic Type = sys::fs::identify_magic(Buffer.getBuffer());
+
+  switch (Type) {
+    case sys::fs::file_magic::archive:
+      return Archive::create(Buffer);
+    case sys::fs::file_magic::elf:
+    case sys::fs::file_magic::elf_relocatable:
+    case sys::fs::file_magic::elf_executable:
+    case sys::fs::file_magic::elf_shared_object:
+    case sys::fs::file_magic::elf_core:
+    case sys::fs::file_magic::macho_object:
+    case sys::fs::file_magic::macho_executable:
+    case sys::fs::file_magic::macho_fixed_virtual_memory_shared_lib:
+    case sys::fs::file_magic::macho_core:
+    case sys::fs::file_magic::macho_preload_executable:
+    case sys::fs::file_magic::macho_dynamically_linked_shared_lib:
+    case sys::fs::file_magic::macho_dynamic_linker:
+    case sys::fs::file_magic::macho_bundle:
+    case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub:
+    case sys::fs::file_magic::macho_dsym_companion:
+    case sys::fs::file_magic::macho_kext_bundle:
+    case sys::fs::file_magic::coff_object:
+    case sys::fs::file_magic::coff_import_library:
+    case sys::fs::file_magic::pecoff_executable:
+    case sys::fs::file_magic::bitcode:
+    case sys::fs::file_magic::wasm_object:
+      return ObjectFile::createSymbolicFile(Buffer, Type, Context);
+    case sys::fs::file_magic::macho_universal_binary:
+      return MachOUniversalBinary::create(Buffer);
+    case sys::fs::file_magic::unknown:
+    case sys::fs::file_magic::coff_cl_gl_object:
+    case sys::fs::file_magic::windows_resource:
+      // Unrecognized object file format.
+      return errorCodeToError(object_error::invalid_file_type);
+  }
+  llvm_unreachable("Unexpected Binary File Type");
+}
+
+Expected<OwningBinary<Binary>> object::createBinary(StringRef Path) {
+  ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+      MemoryBuffer::getFileOrSTDIN(Path);
+  if (std::error_code EC = FileOrErr.getError())
+    return errorCodeToError(EC);
+  std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get();
+
+  Expected<std::unique_ptr<Binary>> BinOrErr =
+      createBinary(Buffer->getMemBufferRef());
+  if (!BinOrErr)
+    return BinOrErr.takeError();
+  std::unique_ptr<Binary> &Bin = BinOrErr.get();
+
+  return OwningBinary<Binary>(std::move(Bin), std::move(Buffer));
+}