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Jato: a JIT-only virtual machine for Java
Home Page: http://www.jatovm.org/
License: Other
This project forked from jatovm/jato
Jato: a JIT-only virtual machine for Java
Home Page: http://www.jatovm.org/
License: Other
1. What is Jato =============== Jato is an implementation of the Java virtual machine. It includes a VM and a JIT compiler for the x86 machine architecture and supports the JNI API. Jato uses Boehm GC as its garbage collector and relies on GNU Classpath to provide essential Java APIs. 2. Compilation and Installation =============================== 2.1. Getting the Sources ------------------------ Fetch the latest sources with: git clone git://git.kernel.org/pub/scm/java/jato/jato.git 2.2. Build Requirements ----------------------- Before installing Jato ensure you have the following software installed on your system: - GNU Classpath 0.97 or higher. You're encouraged to use the latest CVS HEAD when possible. - Eclipse Java Compiler Ubuntu 10.10: sudo apt-get install ecj libffi-dev binutils-dev libzip-dev libglib2.0-dev bison Archlinux: pacman -S eclipse-ecj classpath libzip libffi 2.2.1. Building GNU Classpath ----------------------------- GNU Classpath is no longer packaged with Ubuntu 10.10 and later versions so you need to build and install it yourself to run Jato. First download the sources from: http://www.gnu.org/software/classpath/downloads/downloads.html and then install the following dependencies that are required to build GNU Classpath: sudo apt-get install openjdk-6-jdk antlr libgconf2-dev libgtk2.0-dev ecj fastjar pccts You can then compile GNU Classpath: ./configure --disable-Werror --disable-plugin ; make and install it to /usr/local: sudo make install 2.3. Building the Software -------------------------- - Compile the VM: make 2.4. Testing and Installation ----------------------------- You can run all Jato unit and regression tests with the command: make check All tests should pass. In addition, you can download and run bunch of real-world tests with the command: make torture Note! This step is optional and can take a long time. You can now install Jato with: make install 3. Using Jato ============= Jato uses the same command line options as 'java'. You can execute a single class with: jato <class name> To specify classpath use: jato -cp <jar files or directories> <class name> You can also execute a Jar file with: jato -jar <jar file> Jato also supports variety of command line options for debugging and tracing purposes. See the file Documentation/options.txt for details. 4. Copyright and License ======================== Copyright (C) 2005-2011 Pekka Enberg and contributors Jato is available under the GNU General Public License (GPL) version 2 with the following clarification and special exception: Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. 5. Thanks and Acknowledgements ============================== I would like to thank the following people and organizations for supporting Jato development: - Google for including Jato in Summer of Code 2008 and 2009. - Kernel.org for providing git hosting for Jato. - Reaktor Innovations Oy for sponsoring initial Jato development back in 2005. Thank you!
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