[jira] Closed: (HARMONY-1898) write barrier for C/C++ based GCs in Jitrino.OPT

["weldon washburn (JIRA)" <ji...@apache.org>]

     [ http://issues.apache.org/jira/browse/HARMONY-1898?page=all ]

weldon washburn closed HARMONY-1898.
------------------------------------

    Resolution: Fixed

smoke tests on windowsxp and linux w/ gcc 4.0.2 pass

> 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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