SubstrateVM

[Jaroslav Tulach]

Dne neděle 4. února 2018 20:04:01 CEST, Johan Vos napsal(a):
> Having SubstrateVM for iOS would be great.
> 
> There are a number of things though that I think should be addressed as
> well:
> * Java 9: at this moment it seems SubstrateVM requires a Java 8 VM

I've been told the support for JDK9 is being worked on and I [can estimate]
(http://wiki.apidesign.org/wiki/Estimate) the delivery date to be November 
2018, plus/minus twelve months.
-jt


> * JNI
> * Reflection
> 
> I am impressed by how easy it was to compile HelloWorld and embed it in a
> single executable on Linux. I am currently looking into running a JavaFX
> application, as that would be the real-world test. That doesn't work out of
> the box of course, and I'm looking at how much work it would be.
> 
> All of this doesn't mean we should rule out hotspot of course. Again using
> a real-world JavaFX application as a testcase, the current situation is the
> following:
> * a relative complex JavaFX application runs using the native code in the
> jdk directory from openjdk/mobile/dev, with classes from that same
> directory compiled using Gluon VM AOT, and statically linked with Gluon
> VM's VM (boson)
> * that same application also runs on hotspot with the zero interpreter, but
> of course much slower.
> 
> For OpenJDK Mobile, I see 2 big options moving forward:
> * use something like jaotc to compile all classes and dependencies aot, and
> have hotspot use the compiled methods
> * bring SubstrateVM at the same level as the current openjdk/mobile/dev
> (which means support for Java 9, JNI and reflection).
> 
> - Johan
> 
> 
> On Sat, Jan 27, 2018 at 10:18 AM Jaroslav Tulach <jaroslav.tulach at gmail.com>
> wrote:
> > Dne pátek 26. ledna 2018 16:17:46 CET, Bob Vandette napsal(a):
> > > I’m a big fan of the SubstrateVM work that Oracle Labs is doing.
> > 
> > Glad to hear that Bob! I'd be also delighted to see SubstrateVM support
> > for
> > iOS. It would be a great PR for our work.
> > 
> > According to our boss, it should be a simple research project for an
> > intern or
> > a university student to turn the support for  AARCH64 on, given the fact
> > that
> > Graal already has the support.
> > -jt