--- /dev/null
+++ dyld/dyld-1165.3/mach_o/DataInCode.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2017 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+
+#include "DataInCode.h"
+
+#if BUILDING_MACHO_WRITER
+#include <map>
+#endif
+
+namespace mach_o {
+
+DataInCode::DataInCode(const uint8_t* start, size_t size)
+    : _dataInCodeStart(start), _dataInCodeEnd(start + size)
+{
+}
+
+Error DataInCode::valid() const
+{
+    return Error::none();
+}
+
+#if BUILDING_MACHO_WRITER
+
+DataInCode::DataInCode(std::span<const Entry> entries)
+{
+    assert(entries.empty());
+
+    this->_bytes.reserve(1);
+
+    // set up buffer
+    this->_dataInCodeStart = &this->_bytes.front();
+    this->_dataInCodeEnd   = &this->_bytes.back();
+}
+
+#endif // BUILDING_MACHO_WRITER
+
+} // namepace mach_o