Difference between revisions of "Java"
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− | ' | + | Here's how to build a simple java virtual machine for the chumby (assumes you have the development tools installed). |
− | + | Or you can skip to the end and just download a prebuilt binary. | |
=Building JamVM= | =Building JamVM= | ||
Line 9: | Line 9: | ||
==Download the source code== | ==Download the source code== | ||
− | + | Download [http://prdownloads.sourceforge.net/jamvm/jamvm-1.4.3.tar.gz?download jamvm-1.4.3] into <code>~/jamvm</code> | |
==Unpack the source code== | ==Unpack the source code== | ||
Line 28: | Line 28: | ||
==Download and unpack GNU classpath== | ==Download and unpack GNU classpath== | ||
− | cd ~/ | + | mkdir ~/classpath |
+ | cd ~/classpath | ||
Download [ftp://ftp.gnu.org/gnu/classpath/classpath-0.91.tar.gz classpath-0.91] | Download [ftp://ftp.gnu.org/gnu/classpath/classpath-0.91.tar.gz classpath-0.91] | ||
tar -xzf classpath-0.91.tar.gz | tar -xzf classpath-0.91.tar.gz | ||
Line 34: | Line 35: | ||
==Build classpath== | ==Build classpath== | ||
+ | You'll need to have jikes installed (for Kubuntu, <code>sudo apt-get install jikes</code>) | ||
./configure --build=i386-linux --host=arm-linux --prefix=/usr/arm-linux --with-jikes --disable-gtk-peer --disable-alsa --without-x --with-jni | ./configure --build=i386-linux --host=arm-linux --prefix=/usr/arm-linux --with-jikes --disable-gtk-peer --disable-alsa --without-x --with-jni | ||
make | make | ||
sudo make install | sudo make install | ||
− | == | + | ==Build a "java dongle" for chumby== |
* copy <code>/usr/arm-linux/bin/jamvm</code> to the dongle | * copy <code>/usr/arm-linux/bin/jamvm</code> to the dongle | ||
− | * create a directory <code>lib</code>on the dongle | + | * create a directory <code>lib</code> on the dongle |
* copy <code>/usr/arm-linux/share/classes.zip</code> to the <code>lib</code> directory on the dongle | * copy <code>/usr/arm-linux/share/classes.zip</code> to the <code>lib</code> directory on the dongle | ||
− | * copy the contents of<code>/usr/arm-linux/lib/classpath/</code> to the <code>lib</code> directory on the dongle | + | * copy the contents of<code>/usr/arm-linux/lib/classpath/*.so</code> to the <code>lib</code> directory on the dongle |
* copy the contents of<code>/usr/arm-linux/share/classpath/</code> to the <code>lib</code> directory on the dongle | * copy the contents of<code>/usr/arm-linux/share/classpath/</code> to the <code>lib</code> directory on the dongle | ||
− | * create the file <code>java</code>on the dongle with the contents: | + | * create the file <code>java</code> on the dongle with the contents: |
#!/bin/sh | #!/bin/sh | ||
LD_LIBRARY_PATH=/mnt/usb/lib /mnt/usb/jamvm -mx8M -Xbootclasspath:/mnt/usb/lib/classes.zip:/mnt/usb/lib/glibj.zip $@ | LD_LIBRARY_PATH=/mnt/usb/lib /mnt/usb/jamvm -mx8M -Xbootclasspath:/mnt/usb/lib/classes.zip:/mnt/usb/lib/glibj.zip $@ | ||
+ | |||
+ | ==Too lazy to do all this?== | ||
+ | Just download [http://files.chumby.com/languages/java/jamvm_chumby_1.7.tar.gz jamvm_chumby_1.7.tar.gz] (23MB) and unpack onto your dongle. | ||
==Run programs!== | ==Run programs!== |
Latest revision as of 14:07, 30 May 2009
Here's how to build a simple java virtual machine for the chumby (assumes you have the development tools installed).
Or you can skip to the end and just download a prebuilt binary.
Contents
Building JamVM
Create a directory to hold the package
mkdir ~jamvm cd jamvm
Download the source code
Download jamvm-1.4.3 into ~/jamvm
Unpack the source code
tar xzvf java-1.4.3.tar.gz cd javavm-1.4.3
Configure and build
./configure --build=i386-linux --host=arm-linux --prefix=/usr/arm-linux make
Strip the binary
arm-linux-strip src/jamvm
Install
sudo make install
This will copy the virtual machine to /usr/arm-linux/jamvm
, and the custom class libraries to /usr/arm-linux/share/classes.zip
Download and unpack GNU classpath
mkdir ~/classpath cd ~/classpath
Download classpath-0.91
tar -xzf classpath-0.91.tar.gz cd classpath-0.91
Build classpath
You'll need to have jikes installed (for Kubuntu, sudo apt-get install jikes
)
./configure --build=i386-linux --host=arm-linux --prefix=/usr/arm-linux --with-jikes --disable-gtk-peer --disable-alsa --without-x --with-jni make sudo make install
Build a "java dongle" for chumby
- copy
/usr/arm-linux/bin/jamvm
to the dongle - create a directory
lib
on the dongle - copy
/usr/arm-linux/share/classes.zip
to thelib
directory on the dongle - copy the contents of
/usr/arm-linux/lib/classpath/*.so
to thelib
directory on the dongle - copy the contents of
/usr/arm-linux/share/classpath/
to thelib
directory on the dongle - create the file
java
on the dongle with the contents:
#!/bin/sh LD_LIBRARY_PATH=/mnt/usb/lib /mnt/usb/jamvm -mx8M -Xbootclasspath:/mnt/usb/lib/classes.zip:/mnt/usb/lib/glibj.zip $@
Too lazy to do all this?
Just download jamvm_chumby_1.7.tar.gz (23MB) and unpack onto your dongle.
Run programs!
For example, if you have a program Hello.java
compiled to Hello.class
, you can run it with:
# java Hello Hello World #