Dynamic Software Updating Michael Hicks Jonathan T. Moore Scott Nettles Presented by Arun Joseph

Introduction Goals and Approaches Framework Implementation The FlashEd Webserver

Goals Flexibility Correctness Ease of use Low overhead

Framework Dynamic Patches Enabling Dynamic Patches –Code and Data Updates –Updating Type Definitions

Framework Dynamic patches

Framework Building Updateable Systems –Patch Construction Methodology –Automatic Patch Generation –When to Apply Patches

Implementation Typed Assembly Language (TAL) and Popcorn Dynamic Updating Patches

Implementation Dynamic Updating

The FlashEd Webserver Building an Updateable Application –Patches Performance Analysis

Conclusion Flexibility Correctness Easy of Use Low Overhead