RFR: Make Zero build and run with JDK8

[Christian Thalinger]

On Oct 11, 2012, at 7:55 AM, Roman Kennke <rkennke at redhat.com> wrote:

> Hello,
> 
> In the recent weeks I worked on the Zero interpreter, to get it to build
> and run with JDK8, and in particular with the latest changes that came
> from mlvm (meth-lazy). The following webrev applies to hsx/hotspot-main:
> 
> http://cr.openjdk.java.net/~rkennke/zerojdk8/webrev.00/
> 
> A few notes on the patch:
> - Some makefile changes have been necessary to get it to build at all.
> - A bunch of stub functions needed to be added to make the compiler
> happy, they should not be called though.
> - Most of the changes are related to JSR292 stuff, in particular the
> added invokehandle handler, and the changes to invokedynamic resulting
> from how the constant pool entry has changed (e.g. method is now in f1).
> - A lot of code relating to JSR292 could be removed because most of the
> logic has been moved to the (Java) lambda forms.
> - A few native methods have been added (MH.invokeBasic(),
> MH.linkToVirtual(), MH.linkToStatic() MH.linkToSpecial()).
> 
> With those changes it's possible to build the Zero-JDK with itself, and
> run the JSR292 related jtreg testcases. I did not (yet) attempt to run a
> TCK or such, this would have to wait until all this gets backported to
> JDK7 anyway, and I wanted to get some feedback on the changes first.

You may want to run something like JRuby as well.

> 
> So what do you think?
> 
> And what are the next steps to (hopefully) get those changes committed?
> I guess I need a bug-ID and formal review ?

Yes, you do.  Here is the bug:

8000780: make Zero build and run with JDK8

I'm reviewing the changes right now...

-- Chris

> 
> And in case this is not the correct mailing list, please fwd to and/or
> CC the correct list.
> 
> Thanks and kind regards,
> Roman
> 
>