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LFCS seminar: Earl Barr: Automated Software Transplantation

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What
  • LFCS Seminar
When Nov 13, 2015
from 02:00 PM to 03:00 PM
Where IF 4.31/4.33
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Abstract: Automated transplantation would open many exciting avenues for software development: suppose we could autotransplant code from one system into another, entirely unrelated, system. This talk discusses an algorithm and a tool that achieves this. Leveraging lightweight annotation, program analysis identifies an organ (interesting behavior to transplant); testing validates that the organ exhibits the desired behavior during its extraction and after its implantation into a host. The results are encouraging: we report that in 12 of 15 experiments, involving 5 donors and 3 hosts (all popular real-world systems), we successfully autotransplanted new functionality into a host that passed all regression tests. Autotransplantation is also already useful: in 26 hours computation time we successfully autotransplanted the H.264 video encoding functionality from the x264 system to the VLC media player; compare this to upgrading x264 within VLC, a task that we estimate, from VLC’s version history, took human programmers an average of 20 days of elapsed, as opposed to dedicated, time.

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