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From "weldon washburn (JIRA)" <j...@apache.org>
Subject [jira] Closed: (HARMONY-1806) [drlvm][.jet] wb4j - write barriers for Java-based GC
Date Wed, 18 Oct 2006 05:39:36 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-1806?page=all ]

weldon washburn closed HARMONY-1806.

    Resolution: Fixed

committed.  Tested on windowsxp and redhat w/ gcc 3.4.5

> [drlvm][.jet] wb4j - write barriers for Java-based GC
> -----------------------------------------------------
>                 Key: HARMONY-1806
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1806
>             Project: Harmony
>          Issue Type: New Feature
>          Components: DRLVM
>            Reporter: Alex Astapchuk
>         Assigned To: weldon washburn
>         Attachments: Barriers.class, Barriers.java, jet_wb4j.patch
> Attached is implementation of write barriers in Jitrino.JET for Java-based GC (WB4J).
> The WB4J is off by default.
> Note:
> Current implementation calls org.mmtk.vm.Barriers::performWriteInBarrier() method.
> Attached Barriers.class is the fake implementation of the method. 
> Please make sure the class is accessible via the *boot*classpath.
> Presuming the Barriers.class is in ./org/mmtk/vm/ and you're using .jet-only mode,
> the following command line turns WB4J on:
> java -Xbootclasspath/p:. -Xem:jet -Djit.JET.arg.wb4j=true Hello
> This patch depends on HARMONY-1785.
> When both wb4c and wb4j requested, then WB4J has a higher priority.

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