[oe] [meta-oe][PATCH] llvm: update 3.5.2 to have a sane ARM JIT for OpenJDK-8

Otavio Salvador otavio.salvador at ossystems.com.br
Tue Oct 27 20:24:52 UTC 2015


On Tue, Oct 27, 2015 at 6:21 PM, Jens Rehsack <rehsack at gmail.com> wrote:
>
>> Am 27.10.2015 um 21:15 schrieb Otavio Salvador <otavio.salvador at ossystems.com.br>:
>>
>> On Tue, Oct 27, 2015 at 6:04 PM, Jens Rehsack <rehsack at gmail.com> wrote:
>>>
>>> llvm introduced new JIT technology MCJIT with llvm 3.4 and fixes ARM in 3.5
>>> (see http://llvm.org/releases/3.5.2/docs/ReleaseNotes.html#changes-to-the-arm-backend).
>>>
>>> Ensure JIT is built with llvm
>>>
>>> Signed-off-by: Jens Rehsack <sno at netbsd.org>
>>
>> There is a patch to add LLVM 3.7[1]; I think this one can be dropped.
>>
>> 1. http://patchwork.openembedded.org/patch/106281/
>
> I'v seen this and I guarantee that OpenJDK-8 will fail heavily with llvm3.7 - the guys
> put an end to an antiquated API's with each release, and OpenJDK's zeroshark uses lot's
> of them.

So we will need to figure how to deal with this. I see following options:

 - add needed llvm recipe in meta-java (I dislike this)
 - fix openjdk
 - update openjdk so it work with 3.7 (preferred)

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750



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