Re: [Jamvm-general] JamVM + LWJGL + OpenJDK running 60fps 1080p on RaspberryPi!

[modsrm <mo...@gm...>]

Hey man,

thanks for the answer.

I managed to cross compile jamvm and gnu classpath with the crosscompiler
built with crosstool-ng.
Both my build and target arm machines are running Arch Linux.

I used openembedded in the past, and im gonna try stay away from it, cos i
want to have full control and understanding on what i cross build.

In attachment the commands i used to cross compile and install on the build
machine.
I then just copied the content of the target folder to my arm board.

I hope it helps somebody else too.

Ciao,

R.

http://old.nabble.com/file/p34824547/gnu_classpath_build.txt
gnu_classpath_build.txt 

http://old.nabble.com/file/p34824547/jamvm_build.txt jamvm_build.txt 



Xerxes Rånby wrote:
> 
> 2012-12-19 12:26, modsrm skrev:
>> 
>> Hi Xerxes,
>> 
>> Roberto here.
>> I see you are running jamVM on ARM. Ive been trying to cross compile it
>> with
>> the crosstool ng toolchain but i cannot get over the following issue, i
>> thought maybe you have a solution!
>> 
> Sorry the errors you see are unknown to me, I rarely run manual cross
> compiles, I prefer building on target.
> 
> The OpenEmbedded meta-java can automate a cross compile of JamVM + OpenJDK
> 6 or 7.
> https://github.com/woglinde/meta-java
> Build instructions:
> https://github.com/woglinde/meta-java/wiki
> 
> I think meta-java can help you perform a cross compilation.
> 
>> Im building on a 32 bit x86 machine, here is my configure command:
>> 
>> PATH=$PATH:/home/mods/development/embedded/tools/toolchain/arm-unknown-linux-gnueabi/bin/
>> ./configure --host=arm-unknown-linux-gnueabi
>> CPPFLAGS="-I/home/mods/development/embedded/tools/rootfs/include"
>> LDFLAGS="-L/home/mods/development/embedded/tools/rootfs/lib"
>> 
>> The extra CPPFLAGS and LDFLAGS are passed in to specify where the cross
>> compiled zlib is.
>> 
>> Configure succeeds, but then make fail with the following error:
>> 
>> arm-unknown-linux-gnueabi-gcc -g -O2
>> -I/home/mods/development/embedded/tools/rootfs/include
>> -L/home/mods/development/embedded/tools/rootfs/lib 
>> engine/compute_relocatability.c   -o engine/compute_relocatability 
>> engine/compute_relocatability.c:24:17: fatal error: jam.h: No such file
>> or
>> directory
>> 
>> Did you cross compile it or did you build it on the target?
> 
> I build it on target like this: http://labb.zafena.se/?p=576
> 
> JamVM is pre-packaged for use on Debian/Rasbian and Ubuntu systems.
> Simply install:
> apt-get install openjdk-7-jre icedtea-7-jre-jamvm
> and then run jamvm using:
> java -jamvm
> 
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