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From "Yu-Nan He (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-1898) write barrier for C/C++ based GCs in Jitrino.OPT
Date Wed, 25 Oct 2006 03:24:19 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-1898?page=all ]

Yu-Nan He updated HARMONY-1898:

    Attachment: WB4C_Update2.patch

Weldon, please try this patch: "WB4C_Update2.patch". Thanks.

> write barrier for C/C++ based GCs in Jitrino.OPT
> ------------------------------------------------
>                 Key: HARMONY-1898
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1898
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>         Environment: Windows and Linux, IA32
>            Reporter: Yu-Nan He
>         Assigned To: weldon washburn
>         Attachments: WB4C_OPT.patch, WB4C_Update.patch, WB4C_Update2.patch
> Attached patch is an implementation of write barrier for C/C++ based GCs in Jitrino.OPT.
The patch lets OPT to call "gc_requires_barriers()" of GC to determine if it needs to insert
the write barrier code into the jitted code, so it doesn't impact current DRLVM/GC at all.
 It calls gc_heap_slot_write_ref( ) of GC module.
> To Apply this patch, please enter vm/ directory and patch it. You can pass '-Xem:opt'
to EM to use the OPT-only mode. In any other modes, you should be sure to open the JET write
barrier for C/C++ based GCs .
> This patch is based on revision 465123.
> Please review this patch and see if it's ready for commission. Thanks. We hope it can
be committed to Harmony soon.

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