* 외국 사이트에서 참고한 거라,.. 나름대로 메뉴얼을 영어로 써봅니다. 문제가 있는 부분은 메일 주시면 수정/ 반영 하도록 하겠습니다.
0. Introduction
- Python is very strong language for development of any applications. From now, I'm introducing the porting python 2.5 to arm-linux target board with external python modules like numarray, Numeric, etc. And also this document includes building the cross-compiling chains for PXA-255 target board.
- Host PC : Red Hat Linux 9 ( vm-ware, static IP using nat )
- TargetBoard : arm based board ( pxa255 ), and has embedded linux OS.
1. Installing Redhat linux 9
- Custom, allowing ftp, ssh
- Kernel development, Development Tools
- ( installing build-essential, libncurses5-dev )
Select "Custom"
Allowing ftp, ssh services
Select Development tools and Kernel Development.
2. SSH configuration in redhat 9
- Starting etc
# /etc/rc.d/init.d/sshd start
# vi ~/.bash_profile
- append line : /etc/rc.d/init.d/sshd start
- applying bash
#source ~/.bash_profile
3. vsftpd configuration
- create /etc/vsftpd/vsftpd.conf at the first excutation
# /etc/rc.d/init.d/vsftpd start
# vi /etc/vsftpd/vsftpd.conf
local_enable = YES
write_enable = YES
# vi ~/.bash_profile
- append line to .bash_profile : /etc/rc.d/init.d/vsftpd start
- applying bash
# source ~/.bash_profile
4. Building cross-compiling toolchain
- reference site : http://www.ailis.de/~k/archives/19-arm- ··· wto.html
4-1. binutils - 2.11.2
- Download installation file : ftp://ftp.gnu.org/gnu/binutils/binutils-2.11.2.tar.gz
# tar xvfz binutils-2.11.2.tar.gz
# ./configure --target=arm-linux
# make
# make install
- verifying new binaries : /usr/local/bin
- verifying new directory : /usr/local/arm-linux
4-2. Linux Kernel header files
- Download installation file : http://ftp.kernel.org/pub/linux/kernel/ ··· 7.tar.gz
- Download kernel patch file : ftp://ftp.arm.linux.org.uk/pub/armlinux/source/kernel-patches/v2.4/patch-2.4.17-rmk4.gz
- unpacking linux kernel source
# tar xvfz linux-2.4.17.tar.gz
# cd linux-2.4.17.tar.gz
# copy ../patch-2.4.17-rmk4.gz .
- applying kernel 2.4.17-rmk4 to 2.4.17 for ARM kernel patch
# zcat patch-2.4.17-rmk4.gz | patch -p1
- configure the kernel for ARM
# make menuconfig ARCH=arm
- save configuration ( you don't have to do anything! )
- make with dependency
# make dep
- copy include, asm-arm, linux files from kernel source to toolchain directory
# mkdir /usr/local/arm-linux/include
# cp -dR include/asm-arm /usr/local/arm-linux/include/asm
# cp -dR include/linux /usr/local/arm-linux/include/linux
- create symbolic link 'sys-linux' for the next compiling
# cd /usr/local/arm-linux/
# ln -s include sys-linux
4-3. gcc compile for building libraries
- Download file : ftp://ftp.gnu.org/gnu/gcc/gcc-2.95.3.tar.gz
# tar xvfz gcc-2.95.3.tar.gz
# vi gcc/config/arm/t-linux
- replace this line :
(before) TARGET_LIBGCC2_CFLAGS = -fomit-frame-pointer -fPIC
(after) TARGET_LIBGCC2_CFLAGS = -fomit-frame-pointer -fPIC -Dinhibit_libc -D__gthr_posix_h
- configure -> compile -> install the source code
# ./configure --target=arm-linux --disable-threads --enable-languages=c
# make ; make install
4-4. glibc
- Download file : ftp://ftp.gnu.org/gnu/glibc/glibc-2.2.4.tar.gz
- Download file2 ( glibc linuxthreads add-on ) : ftp://ftp.gnu.org/gnu/glibc/glibc-linuxthreads-2.2.4.tar.gz
- Unpack the source
# tar xvfz glibc-2.2.4.tar.gz
- linux thread patch to glibc
# cd glibc-2.2.4
# tar xvfz ../glibc-linuxthreads-2.2.4.tar.gz
- set the environment variable for arm-linux
# export CC=arm-linux-gcc
- configure, make and make install
# ./configure arm-linux --target=arm-linux --prefix=/usr/local/arm-linux --enable-add-ons
# make
- If you see some error like the figure below, don't be confused.
# ls /usr/local/arm-linux/include/asm/
- Maybe you can easily find [arch] and [proc] are symbolic link file, and they are broken.
# cd /usr/local/arm-linux/include/asm/
# mv arch arch_old
# mv proc proc_old
# ln -s /usr/local/arm-linux/include/asm arch
# ln -s /usr/local/arm-linux/include/asm/proc-armv/ proc
# make ( it takes pretty much time )
# make install
- unset the environment variable
# unset CC
4-5. second compile for gcc + glibc
# mv gcc-2.95.3 gcc-2.95.3_old
- configure, make and make install
# ./configure --target=arm-linux
# make
# make install
- if you failed make gcc, don't worry about it :)
in basicio.c, PATH_MAX is undeclared.
# vi libchill/basicio.c
- replace [ #include <limits.h> ] to [ #include <linux/limites.h> ]
# make ; make install
5. Building python 2.5
- reference site
http://whatschrisdoing.com/blog/2006/10 ··· ython-25
http://www.ailis.de/~k/archives/19-arm- ··· wto.html
- I found some web page of python 2.5 for ppc-linux. Above web-site is kindly explain the porting python 2.5 to ppc-linux. I was able to port python 2.5 to arm-linux by above two references.
- Get the source of python 2.5 : http://www.python.org/ftp/python/2.5/Python-2.5.tgz
- Get the patch of python 2.5 from Chris : http://whatschrisdoing.com/~lambacck/py ··· le.patch
5-1. Installing Python 2.5
- Unpack Python-2.5 source codes
# tar xvfz Python-2.5.tar
- Apply the patch to python-2.5
# cd Python-2.5
# cat ../Python2.5_xcompile.patch | patch -p1
- Configure, make
# ./configure
# make python Parser/pgen
- backup the excutable file for host PC
# mv python hostpython
# mv Parser/pgen Parser/hostpgen
- clean
# make distclean
- set the environment values
# export CC=arm-linux-gcc
# export CXX=arm-linux-g++
# export AR=arm-linux-ar
# export LD=arm-linux-ld
# export RANLIB=arm-linux-ranlib
# export | grep "arm"
- Configure python 2.5. I and Chris set the prefix /python, for easy porting to target-board later
# ./configure --host=arm-linux --target=arm-linux --prefix=/python
- Make
# make HOSTPYTHON=./hostpython HOSTPGEN=./Parser/hostpgen BLDSHARED="arm-linux-gcc -shared" CROSS_COMPILE=yes
- You can see many of warnings, for now, just ignore it. ( if you fix this warning, please e-mail me! : hara at hara4u dot net )
- Make install
# make install prefix=/python HOSTPYTHON=./hostpython HOSTPGEN=./Parser/hostpgen BLDSHARED="arm-linux-gcc -shared" CROSS_COMPILE=yes
- If you did all of these processing without any errors, you may success porting!!! :) Congraturations!
6. NFS and Copy the port to the target board
- I have some target board which includes ARM-PXA255 core and blabla..
- And this board has embedded linux 2.4 core and has NFS.
6-1. NFS setup
- You can use NFS ( Network File System ) first time for porting, because the size of builded python is too big for copying to RAM area of target board.
- First, make directory and change the permission
# mkdir /nfs
# chmod 777 /nfs
# chown nobody nfs
# chgrp nobody nfs
- Make environment file
# vi /etc/exports
/nfs localhost(rw,insecure)
/nfs 164.125.xxx.xxx(rw,insecure)
- Do not use that IP address ( that is the IP of my school, PNU in Korea :D )
- Start the nfs service and register to .bash_profile
# /etc/rc.d/init.d/nfs start
# vi ~/.bash_profile
# adding [/etc/rc.d/init.d/nfs start] at the end of the file
# source ~/.bash_profile
- Turn on the target board
# mount -t nfs -o nolock 164.125.1.1:/nfs /mnt/nfs
- Test NFS
(host pc) # make /nfs/testfolder
(target pc) #ls /mnt/nfs
- If your target board doesn't work for NFS, please install that.
- Copy all of /python/ directory in host PC
# cp /python /nfs/ -rf
- Execute python 2.5 on the target board
# ( target board ) cd /mnt/nfs
# cd python/bin
# ./python
- How do you think about it? Welcome to python in your target board :D
7. install the additional module of python
- If you use the external module of python, just install them :)
7-1. numarray-1.2.3
- Reference URL : http://numpy.org/
- Numarray is another implementation of an arrayobject for Python ...
- set the environment values
# export CC=arm-linux-gcc
# export CXX=arm-linux-g++
# export AR=arm-linux-ar
# export LD=arm-linux-ld
# export RANLIB=arm-linux-ranlib
# export | grep "arm"
- Get the source at http://sourceforge.net/project/showfile ··· %3D32367
- Download numarray-1.2.3.tar.gz ( platform independent version )
- build & install
# tar xvfz numarray-1.2.3.tar.gz
# cd numarray-1.2.3
# ../Python-2.5/hostpython setup.py build
# ../Python-2.5/hostpython setup.py install --prefix=/python
- Copying the libraries of numarray
# cd /
# cp python nfs/ -rf
- Test the module
# (target board) cd /mnt/nfs
# (target board) cd python/bin
# (target board) ./python 'import numarray'
7-2. Numeric-24.2
- This external module compilation is similiar to numarray module.
8. Conclusion
- This document is for embedded system programmer.
- if you modify or copy this document to the other web pages, please confirm to me.
( Certainly, The authors of above two reference pages can update their pages using this document with indication of my web-page. And I already trackback this document to their pages. )
- If you have any question or find any bugs ( include English expressions in this documents!! ), please e-mail me or make any comments to this page.
- If you have any comments like porting to the other platforms, please trackback this pages or comment.
- Also, you can uses hangul :D, because I'm Korean.
- E-mail address : [ hara at hara4u dot net ]
Thank you.
트랙백 보낼 주소 : http://hara4u.net/trackback/288
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Python 2.5 >> arm-lnux target board(pxa255) with external python modules
from Hara'z Project page2009/03/19 15:32
* 외국 사이트에서 참고한 거라,.. 나름대로 메뉴얼을 영어로 써봅니다. 문제가 있는 부분은 메일 주시면 수정/ 반영 하도록 하겠습니다.0. Introduction - Python is very strong language for development of any app
