Difference between revisions of "DaCapo benchmarks"

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(Installing Oracle-Sun Java on an Ubuntu Image for ARM gem5)
 
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This page describes how to get the Oracle-Sun JRE version 7 working on a disk image for use with ARM gem5. This will allow you to use the DaCapo benchmarks, which are on the [http://www.gem5.org/dist/current/arm/arm-system-dacapo-2011-08.tgz Ubuntu image for gem5 ARM] in the <code>/benchmarks/dacapo</code> directory.
 
This page describes how to get the Oracle-Sun JRE version 7 working on a disk image for use with ARM gem5. This will allow you to use the DaCapo benchmarks, which are on the [http://www.gem5.org/dist/current/arm/arm-system-dacapo-2011-08.tgz Ubuntu image for gem5 ARM] in the <code>/benchmarks/dacapo</code> directory.
  
== Installing Oracle-Sun Java on an Ubuntu image for ARM gem5 ==
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== Installing Oracle-Sun Java on an Ubuntu Image for ARM gem5 ==
  
Download the standard edition(SE) of Java 7 from Oracle. The SE version is the free version of Java available from Oracle. Make sure to get the headless version of the JRE for ARMv6/7 from [http://www.oracle.com/technetwork/java/embedded/downloads/javase/index.html Oracle]. You may need to register with Oracle before being allowed to download. Once you have this, untar it.
+
Download the standard edition(SE) of Java 7; the SE version is the free version of Java available from Oracle. Make sure to get the headless, SoftFP version of the JRE for ARMv6/7 from [http://www.oracle.com/technetwork/java/embedded/embedded-se/downloads/index.html here]. You may need to register with Oracle before being allowed to download. Once you have this, untar it.
  
* Create a mount point and mount the Ubuntu image:
+
== Setup the Java Directory ==
 
  <nowiki>
 
  <nowiki>
 +
//mount the image
 
sudo mkdir /mnt/ubuntu-gem5
 
sudo mkdir /mnt/ubuntu-gem5
sudo mount -o loop,offset=32256 arm-ubuntu-natty-headless.img /mnt/ubuntu-gem5
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sudo mount -o loop,offset=32256 arm-ubuntu-natty-headless-java.img /mnt/ubuntu-gem5
Setup the Java install directory and copy the Java directory over to your image:
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 +
//setup the Java install directory and copy the Java directory over to your image
 
cd /mnt/ubuntu-gem5/usr/lib
 
cd /mnt/ubuntu-gem5/usr/lib
 
sudo mkdir jvm
 
sudo mkdir jvm
sudo cp -a /path_to_jre/jre_folder /mnt/ubuntu-gem5/usr/lib/jvm
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cd ./jvm
 +
sudo cp -a /path_to_jre/jre_dir .
 +
sudo ln -s ./jre_dir java-7-sun
 
</nowiki>
 
</nowiki>
* Install Java:
+
 
 +
== Install Java ==
 
  <nowiki>
 
  <nowiki>
//setup your directory
 
 
cd /mnt/ubuntu-gem5
 
cd /mnt/ubuntu-gem5
sudo bind -o /proc ./proc
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sudo mount -o bind /proc ./proc
sudo bind -o /dev ./dev
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sudo mount -o bind /dev ./dev
sudo bind -o /sys ./sys
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sudo mount -o bind /sys ./sys
 
sudo chroot .
 
sudo chroot .
 
exec ./bin/bash
 
exec ./bin/bash
 +
 +
//now install Java
 
cd /usr/lib/jvm
 
cd /usr/lib/jvm
ln -s ./jre_dir java-7-sun
 
 
//install Java
 
 
update-alternatives --install /usr/bin/java java /usr/lib/jvm/java-7-sun/bin/java 1
 
update-alternatives --install /usr/bin/java java /usr/lib/jvm/java-7-sun/bin/java 1
 
update-alternatives --install /usr/bin/keytool keytool /usr/lib/jvm/java-7-sun/bin/keytool 1
 
update-alternatives --install /usr/bin/keytool keytool /usr/lib/jvm/java-7-sun/bin/keytool 1
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</nowiki>
 
</nowiki>
  
Once you have unmounted the image, you should be able to run Java with this disk image. Boot this image on gem5 and from the terminal type <code>java -version</code> to verify the Java version on your image.
+
Once you have unmounted the image, you should be able to run Java with this disk image. Boot this image on gem5 and, from the terminal, type <code>java -version</code> to verify the Java version on your image. E.g., the version tested on gem5 is:
 +
 
 +
<nowiki>
 +
root@gem5sim:~# java -version
 +
java version "1.7.0_04-ea"
 +
Java(TM) SE Runtime Environment for Embedded (build 1.7.0_04-ea-b20, headless)
 +
Java HotSpot(TM) Embedded Client VM (build 23.0-b21, mixed mode)
 +
</nowiki>

Latest revision as of 18:08, 30 July 2014

This page describes how to get the Oracle-Sun JRE version 7 working on a disk image for use with ARM gem5. This will allow you to use the DaCapo benchmarks, which are on the Ubuntu image for gem5 ARM in the /benchmarks/dacapo directory.

Installing Oracle-Sun Java on an Ubuntu Image for ARM gem5

Download the standard edition(SE) of Java 7; the SE version is the free version of Java available from Oracle. Make sure to get the headless, SoftFP version of the JRE for ARMv6/7 from here. You may need to register with Oracle before being allowed to download. Once you have this, untar it.

Setup the Java Directory

//mount the image
sudo mkdir /mnt/ubuntu-gem5
sudo mount -o loop,offset=32256 arm-ubuntu-natty-headless-java.img /mnt/ubuntu-gem5

//setup the Java install directory and copy the Java directory over to your image
cd /mnt/ubuntu-gem5/usr/lib
sudo mkdir jvm
cd ./jvm
sudo cp -a /path_to_jre/jre_dir .
sudo ln -s ./jre_dir java-7-sun

Install Java

cd /mnt/ubuntu-gem5
sudo mount -o bind /proc ./proc
sudo mount -o bind /dev ./dev
sudo mount -o bind /sys ./sys
sudo chroot .
exec ./bin/bash

//now install Java
cd /usr/lib/jvm
update-alternatives --install /usr/bin/java java /usr/lib/jvm/java-7-sun/bin/java 1
update-alternatives --install /usr/bin/keytool keytool /usr/lib/jvm/java-7-sun/bin/keytool 1

//setup .jinfo file
echo "name=java-7-sun" > .java-7-sun.jinfo
echo "alias=java-7-sun" >> .java-7-sun.jinfo
echo "priority=1" >> .java-7-sun.jinfo
echo "section=non-free" >> .java-7-sun.jinfo
echo "jre java /usr/lib/jvm/java-7-sun/bin/java" >> .java-7-sun.jinfo
echo "jre keytool /usr/lib/jvm/java-7-sun/bin/keytool" >> .java-7-sun.jinfo

//update java alternatives
update-java-alternatives -s java-7-sun

Once you have unmounted the image, you should be able to run Java with this disk image. Boot this image on gem5 and, from the terminal, type java -version to verify the Java version on your image. E.g., the version tested on gem5 is:

root@gem5sim:~# java -version
java version "1.7.0_04-ea"
Java(TM) SE Runtime Environment for Embedded (build 1.7.0_04-ea-b20, headless)
Java HotSpot(TM) Embedded Client VM (build 23.0-b21, mixed mode)