[External] : Re: Call for Discussion: New Project: Galahad

[Rob Leland]

Thanks!

On Wed, Dec 14, 2022 at 4:37 AM Douglas Simon <doug.simon at oracle.com> wrote:

> > How will this work going forward ? It sounds as if Graal/GraalVM will
> now be a down stream repository. The reason Graal was removed from the
> OpenJdk was because of the duplicated effort of maintenance. Once this is
> eventually merged will this reintroduce the same amount of synchronization
> work as before ?
>
> The eventual goal is indeed to have GraalVM be a downstream repo once the
> requisite components are part of OpenJDK.
>
> > Do you envision changes in Graal and javac be performed by the same
> engineer?
>
> Graal is a bytecode-to-machine-code compiler and javac is a
> Java-source-to-bytecode compiler. These are two different
> projects/technologies and there are no plans to merge them.
>
> > Do you envision a time when Graal will be the only compiler ,
> supplanting the C++  javac.
>
> No. BTW, javac is written in Java (
> https://github.com/openjdk/jdk/tree/master/src/jdk.compiler/share/classes/com/sun/tools/javac),
> not C++.
>
> -Doug
> ________________________________________
> From: Rob Leland <the.rob.leland+java.net at gmail.com>
> Sent: Wednesday, December 14, 2022 4:28 AM
> To: Douglas Simon
> Cc: discuss at openjdk.java.net
> Subject: [External] : Re: Call for Discussion: New Project: Galahad
>
> How will this work going forward ? It sounds as if Graal/GraalVM will now
> be a down stream repository. The reason Graal was removed from the OpenJdk
> was because of the duplicated effort of maintenance. Once this is
> eventually merged will this reintroduce the same amount of synchronization
> work as before ?
>
> Do you envision changes in Graal and javac be performed by the same
> engineer?
>
> Do you envision a time when Graal will be the only compiler , supplanting
> the C++  javac.
>
> Thanks!
>
> On Tue, Dec 13, 2022 at 4:24 AM Douglas Simon <doug.simon at oracle.com
> <mailto:doug.simon at oracle.com>> wrote:
>
> I hereby invite discussion of a new Project, Galahad*, whose primary
> goal is to contribute Java-related GraalVM technologies to the OpenJDK
> Community and prepare them for possible incubation in a JDK main-line
> release.
>
> The initial focus will be on contributing the latest version of the
> GraalVM just-in-time (JIT) compiler and integrating it as an
> alternative to the existing JIT compiler of the HotSpot VM. Later
> steps will bring in the necessary ahead-of-time (AOT) compilation
> technology to make this new JIT compiler written in Java available
> instantly on JVM start and avoid any interference with application
> heap usage and execution profiling. We also intend to contribute
> portions of the Native Image technology as a general AOT compilation
> technology for Java applications. Galahad will pay close attention to
> Leyden and track the Leyden specification as it evolves.
>
> I propose to lead this Project. The initial set of Reviewers will be
> Gergo Barany, Gilles Duboscq, Christian Humer, Vojin Jovanovic, David
> Leopoldseder, Tom Rodriguez, Christian Wimmer and Thomas Wuerthinger.
> The initial set of Committers will be Kim Barrett, Alan Bateman, Larry
> Cable, Eric Caspole, Roberto Castaneda Lozano, Mandy Chung, Andrew
> Dinn, Erik Duveblad, Josef Eisl, Francois Farquet, Damon Fenacci,
> Thomas Garcia, Severin Gehwolf, Aleksandar Gradinac, Ian Graves,
> Christian Haeubl, Christian Hagedorn, Tobias Hartmann, Dan Heidinga,
> Peter Hofer, Tobias Holenstein, David Holmes, Alexander Ilin, Vladimir
> Ivanov, Erik Joelsson, Stefan Johansson, Stefan Karlsson, Roman
> Kennke, Vladimir Kozlov, Vijay Kulkarni, Ioi Lam, Fengyun Liu, Dean
> Long, Ashutosh Mehra, Alex Menkov, David Nestorovic, Fabio Niephaus,
> Erik Osterlund, Loic Ottet, Ekaterina Pavlova, Aleksandar Pejovic,
> Emanuel Peter, Alfonso Peterssen, Coleen Phillimore, Chris Plummer,
> Aleksandar Prokopec, Claes Redestad, Ivan Ristovic, John Rose, Roland
> Schatz, Thomas Schatzl, Christoph Schobesberger, Tom Shull, Boris
> Spasojevic, Serguei Spitsyn, Lukas Stadler, Codrut Stancu, Jovan
> Stevanovic, Simon Tooke, Robert Toyonaga, Bernhard Urban-Forster, Igor
> Veresov, Jorn Vernee, Mikael Vidstedt, Roland Westrelin, Christian
> Wirth, Paul Woegerer, Foivos Zakkak, Sonia Zaldana Calles, Galder
> Zamarreno, Yudi Zheng and Patrick Ziegler.
>
> This Project will start with a clone of the current JDK main-line
> release, JDK 20, and track main-line releases going forward. We will
> incrementally adapt Java-related GraalVM related technologies from the
> Graal repository[1] and merge them into this clone. The work may
> include side repositories for experimentation. We expect to deliver
> Galahad over time, in a series of JEPs that will likely span multiple
> feature releases.
>
> Comments?
>
> - Doug
>
> * "Galahad is the knight who is chosen to find the Holy Grail.
> Galahad, in both the Lancelot-Grail cycle and in Malory's retelling,
> is exalted above all the other knights: he is the one worthy enough to
> have the Grail revealed to him and to be taken into Heaven."
> (https://en.wikipedia.org/wiki/Galahad<
> https://urldefense.com/v3/__https://en.wikipedia.org/wiki/Galahad__;!!ACWV5N9M2RV99hQ!O9XgcI9U8XiVCQAdLTu3zsE7zuqkGiYTe2EZP9HL-sv9m64BSRF99CLrQGragq3kAphqQ7aWuKczjEtGmbqre1f6iy4$
> >)
>
> [1] https://github.com/oracle/graal<
> https://urldefense.com/v3/__https://github.com/oracle/graal__;!!ACWV5N9M2RV99hQ!O9XgcI9U8XiVCQAdLTu3zsE7zuqkGiYTe2EZP9HL-sv9m64BSRF99CLrQGragq3kAphqQ7aWuKczjEtGmbqrhfyWNDU$
> >
>
>
>
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