--- /dev/null
+++ dyld/dyld-1323.3/mach_o/Version64.cpp
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2022 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 <string.h>
+#include <assert.h>
+
+#include "Version64.h"
+
+namespace mach_o {
+
+
+Error Version64::fromString(CString versString, Version64& vers)
+{
+    // Initialize default value
+    vers = Version64();
+    
+    uint64_t a = 0;
+    uint64_t b = 0;
+    uint64_t c = 0;
+    uint64_t d = 0;
+    uint64_t e = 0;
+    char* end;
+    a = strtoul(versString.c_str(), &end, 10);
+    if ( *end == '.' ) {
+        b = strtoul(&end[1], &end, 10);
+        if ( *end == '.' ) {
+            c = strtoul(&end[1], &end, 10);
+            if ( *end == '.' ) {
+                d = strtoul(&end[1], &end, 10);
+                if ( *end == '.' ) {
+                    e = strtoul(&end[1], &end, 10);
+                }
+            }
+        }
+    }
+    if ( (*end != '\0') || (a > 0xFFFFFF) || (b > 0x3FF) || (c > 0x3FF) || (d > 0x3FF)  || (e > 0x3FF) )
+        return Error("malformed 64-bit a.b.c.d.e version number: %s", versString.c_str());
+    
+    vers = Version64(a, b, c, d, e);
+    return Error::none();
+}
+
+static void appendDigit(char*& s, unsigned& num, unsigned place, bool& startedPrinting)
+{
+    if ( num >= place ) {
+        unsigned dig = (num/place);
+        *s++ = '0' + dig;
+        num -= (dig*place);
+        startedPrinting = true;
+    }
+    else if ( startedPrinting ) {
+        *s++ = '0';
+    }
+}
+
+static void appendNumber(char*& s, unsigned num)
+{
+    assert(num < 9999999);
+    bool startedPrinting = false;
+    appendDigit(s, num, 10000000, startedPrinting);
+    appendDigit(s, num,  1000000, startedPrinting);
+    appendDigit(s, num,   100000, startedPrinting);
+    appendDigit(s, num,    10000, startedPrinting);
+    appendDigit(s, num,     1000, startedPrinting);
+    appendDigit(s, num,      100, startedPrinting);
+    appendDigit(s, num,       10, startedPrinting);
+    appendDigit(s, num,        1, startedPrinting);
+    if ( !startedPrinting )
+        *s++ = '0';
+}
+
+/* A.B.C.D.E packed as a24.b10.c10.d10.e10 */
+const char* Version64::toString(char buffer[64]) const
+{
+    char* s = buffer;
+    appendNumber(s, (_raw >> 40));
+    *s++ = '.';
+    appendNumber(s, (_raw >> 30) & 0x3FF);
+    unsigned c = (_raw >> 20) & 0x3FF;
+    if ( c != 0 ) {
+        *s++ = '.';
+        appendNumber(s, c);
+    }
+    unsigned d = (_raw >> 10) & 0x3FF;
+    if ( d != 0 ) {
+        *s++ = '.';
+        appendNumber(s, d);
+    }
+    unsigned e = _raw & 0x3FF;
+    if ( e != 0 ) {
+        *s++ = '.';
+        appendNumber(s, e);
+    }
+    *s++ = '\0';
+    return buffer;
+}
+
+} // namespace mach_o