John Rose wrote: > As you can see from the Mercurial changeset notifications that just > went out, we have a repository for the Da Vinci Machine project. > > The repository does not hold a separate copy of the JVM. Rather, it > is a Mercurial patch repository[0], a system of version-controlled > patch files, each of which applies to the OpenJDK master source > repository. > > At this point, there are three parts, three islands in what I trust > will someday be a thriving cyber-polynesia: > > 0. The rules under which patches will co-exist are embodied in a > README, assisted by a few shell scripts. > 1. The anonk patch set, an implementation of VM-native anonymous > classes, as previously blogged by me. > 2. The callcc patch set, a first cut at VM-native continuations. > > All of these are works in progress. Please try out the setup, and if > you find something that doesn't work right or is unclear, please > propose a fix and send me a patch. At first, I'll apply the patches, > with suitable Contributed-by lines.[1] > > To start, pull http://hg.openjdk.java.net/mlvm/mlvm and read the > README. Or just browse: http://hg.openjdk.java.net/mlvm/mlvm/rev/ > 1e070e27ffd7 > > The anonk patch set is a proposed fast path[2] for loading bytecodes, > such as JRuby invokers. It currently needs a pre-JDK7 emulation > package, which takes the bytes, applies the CP patches the hard way, > chooses a strange name (instead of no name), probably creates a fresh > class loader, and loads it up. > > The callcc patch set is a proof of concept of the copyStack/ > restoreStack API. It is an early snapshot of something Lukas Stadler > [3] is now working on. > > Another island which will soon rise out of the sea will be the home > of method handles.[4] Unlike the first two projects, method handles > are likely to be included in the first version of JSR 292, as an > essential underpinning of invokedynamic. (Thus, it will be the first > civilized island, since it will evolve under JCP oversight.)
Excellent. I now also have a machine I should be able to get a build up and running on, so hopefully this week I can pull the bits together and give them a try. I'm also interested in what we can do to help languages on pre-JDK7 JVMs, since the vast majority of real users of JRuby (for example) could use some real help now. But I will look at your patches and try to formulate some strategy myself as well... - Charlie _______________________________________________ mlvm-dev mailing list [email protected] http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
