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version 1.63, 2017/12/21 13:15:09 version 1.64, 2018/04/12 18:34:38
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         to reduce polymorphic RET instructions:          to reduce polymorphic RET instructions:
         Todd Mortimer, November 20, 2017.          Todd Mortimer, November 20, 2017.
     </li>      </li>
       <li>
           </b>MAP_STACK</b> addition to
           <a href="https://man.openbsd.org/mmap.2">mmap(2)</a>
           allows opportunistic verification that the stack-register
           points at stack memory, therefore catching pivots to non-stack
           memory (sometimes used in ROP attacks).
           Theo de Raadt, April 12, 2018.
       </li>
 </ul>  </ul>
   
 <h3>Functions</h3>  <h3>Functions</h3>
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