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From "Mikhail Loenko (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-3363) [DRLVM] contribution of alternative bytecode verifier
Date Mon, 12 Mar 2007 10:55:09 GMT
[DRLVM] contribution of alternative bytecode verifier
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                 Key: HARMONY-3363
                 URL: https://issues.apache.org/jira/browse/HARMONY-3363
             Project: Harmony
          Issue Type: New Feature
          Components: Contributions
            Reporter: Mikhail Loenko


This is contribution of experimental bytecode verifier on behalf of Intel.

"Experimental" means that there is no formal proof currently available of its equivalence
to the step-by-step verification algorithm described in the spec.

The only known difference to the conventional verifier is dead code verification: RI makes
stricter checks against dead code. 
Since it's about dead code, this difference does not affect vulnerability

Comparing to the current Harmony verifier, this one is supposed to be complete (Harmony currently
does not support jsr/ret verification) and much faster

So, I'm attaching 3 files:

The first one: Verifier_bulk.zip is a bulk contribution on behalf of Intel for archiving purposes.
It contains the legal files as well

The second one: Verifier_patch is my fix to the bugs that I found while the first archive
was coming thru legal

The third archive Verifier_patched.zip is a merge for previous two. It's an up-to-date version
for all the engineering purposes

To try it out one should replace the current 'verifier' directory in vm with the new one and
rebuild

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