--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lld/MachO/ObjC.h	Tue Jun 08 06:07:14 2021 +0900
@@ -0,0 +1,31 @@
+//===- ObjC.h ---------------------------------------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLD_MACHO_OBJC_H
+#define LLD_MACHO_OBJC_H
+
+#include "llvm/Support/MemoryBuffer.h"
+
+namespace lld {
+namespace macho {
+
+namespace objc {
+
+constexpr const char klass[] = "_OBJC_CLASS_$_";
+constexpr const char metaclass[] = "_OBJC_METACLASS_$_";
+constexpr const char ehtype[] = "_OBJC_EHTYPE_$_";
+constexpr const char ivar[] = "_OBJC_IVAR_$_";
+
+} // namespace objc
+
+bool hasObjCSection(llvm::MemoryBufferRef);
+
+} // namespace macho
+} // namespace lld
+
+#endif