dropbear交叉编译

https://github.com/mkj/dropbear

交叉编译之前，先移植zlib

参考文章：

https://lkmao.blog.csdn.net/article/details/142165736

clone源码：

git clone https://github.com/mkj/dropbear

下载以后的目录结构：因为下面的脚本要根据相对路径计算绝对路径，所以要注意目录位置。

$ ls
dropbear  zlib-1.3.1  zlib.tar.gz

 

编译脚本：

export PATH=/usr/local/arm/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin:$PATH
install_path=`pwd`/install_arm
echo $install_path
mkdir -p $install_path
path_bak=`pwd`
cd ../zlib-1.3.1/install_arm/
zlib_path=`pwd`echo "zlib_path=$zlib_path"
echo "install_path=$install_path"
cd -
echo "PWD=`pwd`"
#exit 0CC=arm-linux-gnueabihf-gcc \LD=arm-linux-gnueabihf-ld \AD=arm-linux-gnueabihf-as \./configure \--host=arm-linux-gnueabihf \--prefix=$install_path --with-zlib=$zlib_path
make
make install

进入dropbear的子目录install_arm/bin，查看生成的文件dbclient的格式，如果没有这个文件，说明编译失败了。

install_arm/bin$ file dbclient 
dbclient: ELF 32-bit LSB shared object, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, for GNU/Linux 3.2.0, BuildID[sha1]=1b6bc7b6ec404c50065798fea5efb84b910dadd6, with debug_info, not stripped

小结