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python移植到arm平臺

主要參考了兩篇博文:http://randomsplat.com/id5-cross-compiling-python-for-embedded-linux.htmlhttp://wiki.woodpecker.org.cn/moin/LeoJay/HOWTOCrossCompilePythonForARM

1.  交叉編譯Python

  見Cross Compiling Python for Embedded Linux

複製程式碼

CC=arm-linux-gcc CXX=arm-linux-g++ AR=arm-linux-ar RANLIB=arm-linux-ranlib ./configure --host=arm-linux --build=x86_64-linux-gnu --prefix=/root/tftpboot/Python-2.7.3

make HOSTPYTHON=./hostpython HOSTPGEN=./Parser/hostpgen BLDSHARED="arm-linux-gcc -shared" CROSS_COMPILE=arm-linux- CROSS_COMPILE_TARGET=yes HOSTARCH=arm-linux BUILDARCH=x86_64-linux-gnu

make install HOSTPYTHON=./hostpython BLDSHARED="arm-linux-gcc -shared" CROSS_COMPILE=arm-linux- CROSS_COMPILE_TARGET=yes prefix=/root/tftpboot/Python-2.7.3

複製程式碼

2. PC與開發板檔案傳輸

  tftp: tftp -l path/to/filename -r filename -g 192.168.*.*

3. 檔案拷貝

  •   cp /your/path/bin/python2.7 /bin/python     

  or  export PATH=/your/path/bin/:$PATH   # OK210開發板會報錯

  •        拷貝serial、django等python庫拷貝到/lib/python2.7/site-packages/目錄下。

4. 設定Python相關環境變數

  以Python2.7.x為例。

export PYTHONHOME=/your/path/
#export PYTHONPATH=$PYTHONHOME:$PYTHONHOME/lib/python2.7:$PYTHONHOME/lib:$PYTHONHOME/lib/python2.7/site-packages
#export PATH=$PATH:$PYTHONHOME:$PYTHONPATH

5. sqlite3

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Building SQLLite 

and other dependancies

 

Thanks to Lothsahn’s 2.7.3 patch, it is now possible to build sqlite3, bz2, gz, ssl and ctypes.  Lothsahn provides the following instructions:

 

To do the compilation, the dependencies must be in the include and lib folder one path up from the python install.   For example:

 

<base directory>/include <– header files go here

 

<base directory>/lib <– shared object files go here

 

/Python-2.7.3 <—Python sources go here during compile

 

Dependencies include libffi, sqlite, openssl, bzip2, zlib, etc.

1. 按照上面Paul Gibson給的Cross Compiling Python for Embedded Linux , 但是import sqlite3會報錯,原因暫不明。

試了一些解決辦法,嘗試未果,可能是lib_dir路徑問題:

  •   Removing other search paths from the setup.py, but the one i had the ARM compiled library in, made it work. 測試也未通過。

http://stackoverflow.com/questions/12385634/shared-library-sqlite3-so-not-found-when-importing-sqlite3-on-python-2-6-6

3. debian平臺成功。 http://www.friendlyarm.net/forum/topic/2731

參考:

1. cross compile python, busybox, flex, bash and so on, ARM cross-compiling howto

2. 網上一個給力的例子,python-2.6.6:

Click and run python cross compiling for Embedded ARM Linux

3. 在友善之臂Linux系統中使用python http://112.124.9.243/?p=285

4. 移植python3到ARM平臺的OK6410開發板http://www.51bigfool.com/%E7%A7%BB%E6%A4%8Dpython3%E5%88%B0arm%E5%B9%B3%E5%8F%B0%E7%9A%84ok6410%E5%BC%80%E5%8F%91%E6%9D%BF.html

附:

  •  用strip處理過後,將去掉其中的除錯資訊,執行檔案大小也將小很多。命令如下:

    # arm-linux-strip  file

    其中file是用arm-liunux-gcc編譯生成的二進位制檔案。

  •    ./configure --host=arm-linux CC=arm-linux-gcc AR=arm-linux-ar STRIP=arm-linux-strip RANLIB=arm-linux-ranlib
  •    sqlite3的交叉編譯
    •   # CC=arm-linux-gcc ./configure --prefix=/your/path/sqlite-3.7.14 --host=arm-linux --disable-tcl

        #make && make install

分類: Python

標籤: python

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