MMTk-JikesRVM

This repository provides the JikesRVM binding for MMTk.

Contents

• Requirements
• Build
• Test

Requirements

We maintain an up to date list of the prerequisites for building MMTk and its bindings in the mmtk-dev-env repository. Please make sure your dev machine satisfies those prerequisites.

MMTk/JikesRVM supports linux-i686 and linux-x86_64 (as a 32-bit program).

Before you continue

If you use the set-up explained in mmtk-dev-env, make sure to do the following steps before continuing to the Build section:

1. Set the default Rust toolchain to the one specified in mmtk-dev-env, e.g. by running:

$ # replace nightly-YYYY-MM-DD with the toolchain specified in mmtk-dev-env
$ export RUSTUP_TOOLCHAIN=nightly-YYYY-MM-DD

2. Set openjdk-8-jdk as the default JDK (openjdk-8-jdk is a build requirement of JikesRVM), e.g. by running:

$ update-java-alternatives --set java-1.8.0-openjdk-amd64

3. You may also need to use ssh-agent to authenticate with github (see here for more info):

$ eval `ssh-agent`
$ ssh-add

Getting Sources (for MMTk and JikesRVM)

You will need the correct revisions of MMTk and JikesRVM. Both are checked in as git submodules under repos. You would simply need to run the following lines under the root directory of mmtk-jikesrvm to fetch submodules' sources for MMTk and JikesRVM:

$ git submodule init
$ git submodule update

Alternatively, you could fetch the sources by yourself (make sure you have the right VM/MMTk revisions that match the mmtk-jikesrvm revision. If you clone the MMTk core in a folder other than repos/mmtk-core, you would need to modify mmtk/Cargo.toml to point the mmtk dependency to your MMTk core folder.

• JikesRVM: https://github.com/mmtk/jikesrvm
• MMTk Core: https://github.com/mmtk/mmtk-core

The rest of this instruction assumes you have done the git submodule init/update and have both repositories under repos.

Build

MMTk building is integrated as as a step of the JikesRVM build. We recommend using the buildit script for the JikesRVM build.

$ cd repos/jikesrvm
$ ./bin/buildit localhost RBaseBaseSemiSpace --use-third-party-heap=../../ --use-third-party-build-configs=../../jikesrvm/build/configs/ --use-external-source=../../jikesrvm/rvm/src

The JikesRVM binary is under repos/jikesrvm/dist/RBaseBaseSemiSpace_x86_64-linux/rvm and the MMTk shared library is repos/jikesrvm/dist/RBaseBaseSemiSpace_x86_64-linux/libmmtk.so.

You can build with other build configs, check jikesrvm/build/configs.

Test

Run DaCapo Benchmarks

Fetch DaCapo:

$ # run from the root repo directory
$ mkdir -p repos/jikesrvm/benchmarks
$ wget https://downloads.sourceforge.net/project/dacapobench/archive/2006-10-MR2/dacapo-2006-10-MR2.jar -O repos/jikesrvm/benchmarks/dacapo-2006-10-MR2.jar

Run rvm:

$ LD_LIBRARY_PATH=repos/jikesrvm/dist/RBaseBaseSemiSpace_x86_64-linux/ repos/jikesrvm/dist/RBaseBaseSemiSpace_x86_64-linux/rvm -Xms75M -Xmx75M -jar repos/jikesrvm/benchmarks/dacapo-2006-10-MR2.jar fop
===== DaCapo fop starting =====
ThreadId(1)[INFO:/root/mmtk-jikesrvm/repos/mmtk-core/src/plan/global.rs:112]   [POLL] copyspace0: Triggering collection
ThreadId(1)[INFO:/root/mmtk-jikesrvm/repos/mmtk-core/src/plan/global.rs:112]   [POLL] copyspace1: Triggering collection
ThreadId(1)[INFO:/root/mmtk-jikesrvm/repos/mmtk-core/src/plan/global.rs:112]   [POLL] copyspace0: Triggering collection
ThreadId(1)[INFO:/root/mmtk-jikesrvm/repos/mmtk-core/src/plan/global.rs:112]   [POLL] immortal: Triggering collection
ThreadId(1)[INFO:/root/mmtk-jikesrvm/repos/mmtk-core/src/plan/global.rs:112]   [POLL] copyspace0: Triggering collection
ThreadId(1)[INFO:/root/mmtk-jikesrvm/repos/mmtk-core/src/plan/global.rs:112]   [POLL] copyspace1: Triggering collection
===== DaCapo fop PASSED in 3934 msec =====