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From "Eugene S. Ostrovsky (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-1523) [DRLVM] jvmtiPopFrame jit mode - Safe point callback implementatoin.
Date Thu, 21 Sep 2006 11:15:22 GMT
[DRLVM] jvmtiPopFrame jit mode - Safe point callback implementatoin.

                 Key: HARMONY-1523
                 URL: http://issues.apache.org/jira/browse/HARMONY-1523
             Project: Harmony
          Issue Type: Improvement
          Components: DRLVM
            Reporter: Eugene S. Ostrovsky

Frame unwinding requested by jvmtiPopFrame() function is established by suspended thread itself
during it's staying in safe point. For this purpose safe point callback can be used.
See HARMONY-1420 for brief top-level pop frame implementation design.

Proposed patch:
    1. Exports hythread_set_safepoint_callback() from thead manager.
    2. Implements the callback function to perform frame unwinding.
    3. Adds poppable attribute to those m2n frames that can be popped.

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