| [epp-dev] Fwd: Re: JustJ JRE for AArch64 |
Hi,
It doesn't look like the JustJ Java 15.0.1 JREs made it into the
packages for M2. Is there a reason for that?
You folks have asked for a JRE that includes the src.zip (so that
source debugging is supported) and there is a JRE for aarch64 for
15.0.1 that you need for the JRE-containing packages. Surely it
would be a good idea to test this sooner rather than later.
Note that I don't plan to create a release build for 15.0.1 until
it's been validated by an EPP build.
Regards,
Ed
| Subject: | Re: JustJ JRE for AArch64 |
|---|---|
| Date: | Tue, 27 Oct 2020 08:40:42 +0100 |
| From: | Ed Merks <ed.merks@xxxxxxxxx> |
| To: | Eclipse Packaging Project <epp-dev@xxxxxxxxxxx> |
Thanks to Sravan Lakkimsetti for the awesomely proactive help, thanks to Gordon Hollingworth of Raspberry Pi for providing access to aarch64 hardware, and thanks to Mikaël Barbero for hooking it up to the JustJ CI instance, we now have JustJ JREs for Linux aarch64 available.
The p2 update site for these Java 15.0.1 JREs are available here:
https://download.eclipse.org/justj/jres/15/updates/milestone/latest
The non-debug-stripped variants of these JREs include a src.zip so JDT supports source debugging using these JREs, thanks to the contributions of Alex Boyko.
I've
built sample products, effectively the Eclipse SDK,
version 4.18, with JustJ 15.0.1 and Oomph included:
https://download.eclipse.org/justj/www/download.eclipse.org.php?file=sample-products/202010270600
So I've been able to test that the Eclipse SDK
works properly on Windows, i.e., that JDT can debug step
into JustJ JRE libraries and see the sources
automatically. Also note that the generation of the JREs
actually launches Eclipse with that JRE, so each JRE has
minimally been tested to confirm that Eclipse does launch
using that JRE on each operating system and hardware
combination.
I would suggest using https://download.eclipse.org/justj/jres/15/updates/milestone/latest
for the next EPP milestone. I'll produce a released
version of these after the next EPP milestone has
tested them on all platforms.
Regards,
Ed
I see that the EPP packages now include aarch64 variants:
https://www.eclipse.org/downloads/packages/release/2020-12/m1
The Java 15 JDK also supports aarch64:
https://download.java.net/java/GA/jdk15.0.1/51f4f36ad4ef43e39d0dfdbaf6549e32/9/GPL/openjdk-15.0.1_linux-aarch64_bin.tar.gz
This Bugzilla asks JustJ to provide support for aarch64:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=566640
Without that support, the aarch64 EPP packages that include a JustJ JRE will not actually contain a fragment with an actual JRE.
Making this work primarily involves making this script work natively on aarch64:
https://git.eclipse.org/c/justj/justj.git/tree/releng/org.eclipse.justj.releng/build-jre.sh
But I cannot test how to implement that locally.
Ultimately the JustJ ci instance will need yet another dedicated agent/executor:
https://ci.eclipse.org/justj/
I don't see any mention of aarch64 here:
https://wiki.eclipse.org/CBI#What.27s_provided.3F
An additional dedicated agent costs one "resource pack", so I will need to hunt down someone to donate yet another resource pack.
https://docs.google.com/spreadsheets/d/e/2PACX-1vQGhAH2b-BdoW5MAgmCG8NLfAjZMe7fIgsYNtUMREmIeAXmAPjDkZOx1OHaz0-INS51TGN41C3zcbI8/pubhtml?gid=746314272&single=true
The two current dedicated agents (for MacOS and Windows) are sponsored by Deutsches Zentrum fuer Luft- und Raumfahrt:
https://docs.google.com/spreadsheets/d/e/2PACX-1vQGhAH2b-BdoW5MAgmCG8NLfAjZMe7fIgsYNtUMREmIeAXmAPjDkZOx1OHaz0-INS51TGN41C3zcbI8/pubhtml?gid=832654757&single=true
Assuming such an agent type exists, I've asked for one:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=568233
But the more fundamental question is, does anyone care? And even more fundamentally, does any one care enough to contribute? I don't actually personally care about aarch64.
Regards,
Ed