SS928板子上使用Python运行yoloV5-python编译安装（1）

1. 编译环境

X86 Ubuntu18虚拟机，以安装好交叉编译工具，且交叉工具的bin路径已添加到PATH环境变量，如下表示可用

ebaina@ubuntu:~$ aarch64-mix210-linux-gcc -v
Using built-in specs.
COLLECT_GCC=aarch64-mix210-linux-gcc
COLLECT_LTO_WRAPPER=/opt/linux/x86-arm/aarch64-mix210-linux/host_bin/../libexec/gcc/aarch64-linux-gnu/7.3.0/lto-wrapper
Target: aarch64-linux-gnu
Configured with: /home/pub/software/toolchaines/build/aarch64-mix210-linux/../../open_source/aarch64-mix210-linux_src/gcc-7.3.0/configure --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=aarch64-linux-gnu --with-arch=armv8-a --prefix=/home/pub/software/toolchaines/build/aarch64-mix210-linux/aarch64_mix210_build_dir/aarch64_mix210 --enable-threads --disable-libmudflap -enable-libssp --enable-gold=yes --disable-libstdcxx-pch --disable-multilib --enable-multiarch --with-gnu-as --with-gnu-ld --enable-libgomp --enable-gnu-indirect-function --enable-checking=yes --enable-lto --enable-c99 --enable-long-long --disable-nls --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419 --enable-shared --with-pkgversion=20220321 --enable-languages=c,c++ --with-headers=/home/pub/software/toolchaines/build/aarch64-mix210-linux/aarch64_mix210_build_dir/aarch64_mix210/target/usr/include --with-sysroot=/home/pub/software/toolchaines/build/aarch64-mix210-linux/aarch64_mix210_build_dir/aarch64_mix210/target --with-build-sysroot=/home/pub/software/toolchaines/build/aarch64-mix210-linux/aarch64_mix210_build_dir/aarch64_mix210/target --with-gmp=/home/pub/software/toolchaines/build/aarch64-mix210-linux/aarch64_mix210_build_dir/obj/host-libs/usr --with-mpfr=/home/pub/software/toolchaines/build/aarch64-mix210-linux/aarch64_mix210_build_dir/obj/host-libs/usr --with-mpc=/home/pub/software/toolchaines/build/aarch64-mix210-linux/aarch64_mix210_build_dir/obj/host-libs/usr --with-build-time-tools=/home/pub/software/toolchaines/build/aarch64-mix210-linux/aarch64_mix210_build_dir/aarch64_mix210/aarch64-linux-gnu/bin --libdir=/home/pub/software/toolchaines/build/aarch64-mix210-linux/aarch64_mix210_build_dir/aarch64_mix210/lib --disable-bootstrap --with-system-zlib
Thread model: posix
gcc version 7.3.0 (20220321)

2. 下载python3.7包

可以用虚拟机目录下的 /home/ebaina/Downloads/Python-3.7.6.tgz, 也可以另外下载

1. 官网下载
2. 百度云

3. 编译步骤

1. 将Python-3.7.6.tgz 上传到 /home/ebaina/Downloads

   ebaina@ubuntu:~/Downloads$ ls /home/ebaina/Downloads/Python-3.10.13.tgz
   /home/ebaina/Downloads/Python-3.7.6.tgz
   # 解压
   ebaina@ubuntu:~/Downloads$ tar -zxvf Python-3.7.6.tgz
   ebaina@ubuntu:~/Downloads$ cd Python-3.7.6/
   ebaina@ubuntu:~/Downloads/Python-3.7.6$ CC=aarch64-mix210-linux-gcc \
   CXX=aarch64-mix210-linux-g++ \
   AR=aarch64-mix210-linux-ar \
   RANLIB=aarch64-mix210-linux-ranlib \
   LD="/opt/linux/x86-arm/aarch64-mix210-linux/bin/aarch64-mix210-linux-ld" \
   ./configure \
   --host=aarch64-mix210-linux \
   --build=x86_64-linux-gnu \
   --disable-ipv6 \
   --enable-shared \
   --enable-optimizations \
   --prefix=/usr/local/python-3.7.6  \
   ac_cv_file__dev_ptmx=no \
   ac_cv_file__dev_ptc=no
   

   /usr/local/python-3.7.6 是安装路径

2. 编译

   make \
   HOSTPYTHON=python3 \
   HOSTPGEN=./Parser/pgen \
   BLDSHARED="aarch64-mix210-linux-gcc -shared" \
   CROSS_COMPILE=aarch64-mix210-linux- \
   CROSS_COMPILE_TARGET=yes \
   HOSTARCH=aarch64-mix210-linux \
   BUILDARCH=x86_64-linux-gnu
   

3. 安装

   sudo make install HOSTPYTHON=python3 \
   BLDSHARED="aarch64-mix210-linux-gcc -shared" \
   CROSS_COMPILE=aarch64-mix210-linux- \
   CROSS_COMPILE_TARGET=yes \
   prefix=/usr/local/python-3.7.6
   

4. 上传 python-3.7.6.tar.gz 到SS928的板子上

   cd /usr/local
   sudo tar -zcvf python-3.7.6.tar.gz python-3.7.6
   scp  python-3.7.6.tar.gz root@192.168.1.11:/root
   

   4. 运行Python

   一下步骤在SS928开发板上执行

   root# cd ~
   # tar -zxvf python-3.7.6.tar.gz 
   # cd python-3.7.6
   # ./bin/python -V
   

   报错：

   /root/python-3.7.6# ./bin/python3 -V
   ./bin/python3: error while loading shared libraries: libpython3.7m.so.1.0: cannot open shared object file: No such file or directory
   

   复制 libpython3.7m.so.1.0 到 /lib64 目录下

   /root/python-3.7.6 # cp lib/libpython3.7m.so.1.0  /lib64/
   

   /root/python-3.7.6 # ./bin/python3 -V
   Python 3.7.6