In the weeks before PDC I've been working on compiling Eclipse with ikvmc. This works was triggered by Mainsoft's Eyal Alaluf who asked me to work on this and also provided a desperately needed starting point. I had wanted to do this for ages, but didn't feel like struggling with the Eclipse build system to figure out how to get started.
A couple of the changes in the most recent development snapshot are specifically related to this. In particular the ability for custom assembly class loaders to be called when the module initializer is run. This enables the statically compiled Eclipse OSGi bundles to be lazily activated on first use.
Here are the steps needed to compile Eclipse 3.4.2 x86 on Windows:
The sources for eclipse-clr.exe are in this Visual Studio 2008 solution. It's pretty small and most of what it does is configure and hook OSGi to change the bundle loading and initialization. If you want to build eclipse-clr.exe, you first have to run ikvmc on response0.txt, then build eclipse-clr.exe (it depends on the OSGi assembly built with response0.txt) and after that you can run ikvmc on response1.txt (it depends on eclipse-clr.exe, because that contains the custom assembly class loader used for the bundles).
The response0.txt and response1.txt files were generated from the OSGi manifests and if there is interest I can publish the source to that as well, but is pretty hacky.
When compiled to native with ngen, Eclipse starts up faster than with JDK 1.6 on my systems. In theory the private working set should also be significantly less, allowing multiple Eclipse instances to use far less memory.
This is just a technology demonstration, not production code and has not been extensively tested.
I apologize for the lameness of this, but the comment spam was driving me nuts.
In order to be able to post a comment, you need to answer a simple question. Hopefully this question
is easy enough not to annoy serious commenters, but hard enough to keep the spammers away.
Anti-Spam Question: What method on java.lang.System returns an object's original hashcode (i.e. the
one that would be returned by java.lang.Object.hashCode() if it wasn't overridden)? (case is significant)
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