libwebs 在arm linux中的移植

//编译libwebsockets
//==========ubuntu下编译安装libwebsockets===================
1.GitHub地址：
2.确保cmake、openssl安装成功

源码安装或是apt-get安装都可以。
我这里选择apt-get安装，方便一些。

 #sudo apt-get install cmake
 #sudo apt-get install openssl
 #sudo apt-get install libssl-dev123

注意：apt-get安装openssl时还需要安装libssl-dev，否则会在后面找不到头文件，编译libwebsockets时提示找不到ssl.h

等，此外，还需要注意openssl的版本好像要大于1.0.0，libwebsockets使用的openssl的版本有最低要求，具体参见官网说明
3.Ubuntu下下载、编译及安装

准备好环境后就可以下载、编译及安装libwebsockets了：
 #

git clone
 #cd libwebsockets
 #mkdir build
 #cd build
 #cmake ..
 #make
 #sudo make install
4.测试

安装完成后，开启服务。

# ./libwebsockets-test-server
[2019/02/13 22:03:14:8751] NOTICE: libwebsockets test server - license LGPL2.1+SLE
[2019/02/13 22:03:14:8752] NOTICE: (C) Copyright 2010-2018 Andy Green <>
Using resource path "/usr/local/share/libwebsockets-test-server"
5.ubuntu客户端连接服务器
# ./libwebsockets-test-client 127.0.0.1 
[2019/02/13 22:04:36:3907] NOTICE: libwebsockets test client - license LGPL2.1+SLE
[2019/02/13 22:04:36:3907] NOTICE: (C) Copyright 2010-2018 Andy Green <>
[2019/02/13 22:04:36:3907] NOTICE:  SSL disabled
[2019/02/13 22:04:36:3907] NOTICE:  Cert must validate correctly (use -s to allow selfsigned)
[2019/02/13 22:04:36:3907] NOTICE:  Requiring peer cert hostname matches
[2019/02/13 22:04:36:3935] NOTICE: created client ssl context for default
[2019/02/13 22:04:36:3939] NOTICE: using  mode (ws)
[2019/02/13 22:04:36:3940] NOTICE: dumb: connecting
[2019/02/13 22:04:36:3943] NOTICE: mirror: connecting
[2019/02/13 22:04:36:3949] NOTICE: mirror: LWS_CALLBACK_CLIENT_ESTABLISHED
[2019/02/13 22:04:36:3950] NOTICE: opened mirror connection with 44216 lifetime

//==========交叉编译安装libwebsockets===================
1、交叉编译openssl
 $ 执行./config no-asm -shared --prefix=/usr/local/ssl-arm/  产生Makefile
 $ 修改Makefile  CC= arm-hisiv500-linux-gcc  去除编译和链接选项 -m64
 $ 执行make && make install 编译和安装openssl库 
2、交叉编译zlib
 $ tar jvxf zlib-1.2.3.tar.bz2 
 $ cd zlib-1.2.3/ 
 $ export CC=arm-linux-gcc   //它的configure不支持用CC变量来指定交叉工具链 
 $ ./configure --prefix=/usr/local/zlib-arm/ 
 $ make && make install
3.交叉编译libwebsocket
 $cd libwebsockets-master
 $mkdir build
 $cd build
 $cmake .. \
             -DCMAKE_INSTALL_PREFIX=/usr/local/libwebs-arm \
             -DCMAKE_SYSTEM_NAME=Linux \
      -DCMAKE_C_COMPILER=arm-linux-gcc  \
             -DCMAKE_CXX_COMPILER=arm-linux-g++  \
             -DZLIB_INCLUDE_DIR=/usr/local/zlib-arm/include \
             -DZLIB_LIBRARY="/usr/local/zlib-arm/lib/libz.so"  \
             -DLWS_OPENSSL_INCLUDE_DIRS=/usr/local/ssl-arm/include/ \
             -DLWS_OPENSSL_LIBRARIES="/usr/local/ssl-arm/lib/libssl.so;/usr/local/ssl-arm/lib/libcrypto.so"
 $make && make install
4、安装到交叉环境中
 拷贝libwebs-arm到开发板中
5、测试交叉环境
 执行libwes-arm中的bin文件.
 /mnt/libwebs-arm/bin # ./libwebsockets-test-server -h
 Usage: test-server [--port=

] [--ssl] [-d ]
 //测试服务器
 #./libwebsockets-test-server
 //测试客户端
 #./libwebsockets-test-client 192.168.101.168