Reorganization directory structure [3/n]

Change-Id: If3dfa3f6007f8810a6a1ae1a4f0c7da38544648d

shared/source/device_binary_format/ar/ar.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2020 Intel Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+#pragma once
+
+#include "utilities/const_stringref.h"
+
+namespace NEO {
+namespace Ar {
+
+static constexpr ConstStringRef arMagic = "!<arch>\n";
+static constexpr ConstStringRef arFileEntryTrailingMagic = "\x60\x0A";
+
+struct ArFileEntryHeader {
+    char identifier[16] = {'/', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '};
+    char fileModificationTimestamp[12] = {'0', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '};
+    char ownerId[6] = {'0', ' ', ' ', ' ', ' ', ' '};
+    char groupId[6] = {'0', ' ', ' ', ' ', ' ', ' '};
+    char fileMode[8] = {'6', '4', '4', ' ', ' ', ' ', ' ', ' '};
+    char fileSizeInBytes[10] = {'0', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '};
+    char trailingMagic[2] = {arFileEntryTrailingMagic[0], arFileEntryTrailingMagic[1]};
+};
+static_assert(60U == sizeof(ArFileEntryHeader), "");
+
+namespace SpecialFileNames {
+static constexpr ConstStringRef longFileNamesFile = "//";
+static const char longFileNamePrefix = '/';
+static const char fileNameTerminator = '/';
+} // namespace SpecialFileNames
+
+} // namespace Ar
+
+} // namespace NEO