Import marvel compiler to scratchbox

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1. Abstract

This document explains how to import aforeign compiler to scratchbox.

2. Introduction

. for compiling source code to marvleplatform,we must import the marvel compiler to our scrathbox,then I began thiswork.

3. import step

3.1 summary

for I donot want to pollute my previous scratchboxenvironment,then I create a new environment named SDK_MARVEL,if you do not knowhow please see doc——How to setup empty scratchbox.doc.

3.2 getforeign compiler.

Extract the prebuilt toolchain to your COMPILER_DIR:eg.

/scratchbox/compilers/ arm-linux-4.1.1 .

The COMPILER_DIR should probably now have subdirectories like bin,your-arch-name and lib.

For the alien wrapper to work, you must haveScratchbox version 1.0.3 or newer(Apophis branch) and the compiler must work when invoked directly, eg.

/scratchbox/compilers/ arm-linux-4.1.1/bin/arm-linux-gcc –version

3.3 get thesb-toolchain-extras

you should loginyou to your object platform,eg,SDK_MARVEL for me,by invoke

/some/directory/scratchbox/login

sb-conf select SDK_MARVEL

then goto a directory that you have write privilege,eg,/scratchbox/output,invoke:

darcs get--set-scripts-executable http://scratchbox.org/repos/1.0/sb-toolchain-extras

(here the timedecided by your network and your rp);

3.4 createyour configure file.

Ofcourse you canwrite you own configure ,contains compiler related info and target platformcharacteristic,but you can use a simple script to help you to do this.

Go to thedirectory of you cool compiler ,eg /scratchbox/compiler/ arm-linux-4.1.1

Runthe helper script:

~/sb-toolchain-extras/confhelper/create_toolchain_conf.py >

~/sb-toolchain-extras/meta/alien-tc/arm-marvel.conf

(here ~ show that the sb-toolchain-extras is put to there)

You can editthat to fit for you.

3.5 Build thesb-toolchain-extras tools.

Go to the directoryof sb-toolchain-extras,then invoke :

makeCONFIG=meta/alien-tc/arm-marvel.conf -C meta/alien-tc

all-sums(the time decided by yournetwork and your rp)

make CONFIG=meta/alien-tc/yourconfig.conf -Cmeta/alien-tc

(hereyou can meet some errors just ignored it)

3.6 Runsb-menu to setup compiler.

Run sb-menu —>setup->SDK_MARMEL->arm-linux-4.1.1,thenchoose doctools,debian-etch,cputransp,perl,maemo3-tools,then choose a qemu,youcan choose the qemu-arm-0.8.2-sb2,then ignore the rootstrap then choose installthe files,after this,you can run gcc –v here you will see your new coolcompiler has been install in the scratchbox.

4. test helloworld.

You can write a helloworld program to test thegcc.the code can be like this:

int main(int argc,char **argv)

{

Printf(“Hellocruel world/n”);

Return 0;

}

Run gcc helloworld.c –o helloworld

If you qemu support the new compiler ,you can runthe helloworld in the local machine,like this:

./helloworld

Or else you must copy your program to the objectplatform

If you seethe output:

Hello cruel world

Then you succeed!

5. reference

[1]. How to setup empty scratchbox.doc.

[2]. http://www.scratchbox.org/wiki/ForeignToolchains

[3]. http://www.scratchbox.org/wiki/Toolchains