python移植到arm平臺
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見Cross Compiling Python for Embedded Linux
本文引用地址：http://www.104case.com/article/201611/317666.htmCC=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-2.7.3make 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-gnumake install HOSTPYTHON=./hostpython BLDSHARED="arm-linux-gcc -shared" CROSS_COMPILE=arm-linux- CROSS_COMPILE_TARGET=yes prefix=/root/tftpboot/Python-2.7.3
2. PC與開發板文件傳輸
tftp： tftp -l path/to/filename -r filename -g 192.168.*.*
3. 文件拷貝
- cp /your/path/bin/python2.7 /bin/python
or export PATH=/your/path/bin/:$PATH # OK210開發板會報錯
- 拷貝serial、django等python庫拷貝到/lib/python2.7/site-packages/目錄下。
4. 設置Python相關環境變量
以Python2.7.x為例。
export PYTHONHOME=/your/path/#export PYTHONPATH=$PYTHONHOME:$PYTHONHOME/lib/python2.7:$PYTHONHOME/lib:$PYTHONHOME/lib/python2.7/site-packages#export PATH=$PATH:$PYTHONHOME:$PYTHONPATH
5. sqlite3
Building SQLLite and other dependanciesThanks 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:/include <– header files go here /lib <– shared object files go here/Python-2.7.3 <—Python sources go here during compileDependencies 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
- http://stackoverflow.com/questions/10654707/no-module-named-zlib-found
- http://stackoverflow.com/questions/6171210/building-python-and-more-on-missing-modules
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:
ClickandrunpythoncrosscompilingforEmbeddedARMLinux
3.在友善之臂Linux系統中使用pythonhttp://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處理過后，將去掉其中的調試信息，執行文件大小也將小很多。命令如下：
- ./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
- # CC=arm-linux-gcc ./configure --prefix=/your/path/sqlite-3.7.14 --host=arm-linux --disable-tcl
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