Linux (ubuntu) 下编译安装以及调试nginx

1、安装pcre

• 下载解压pcre包(确保wget、cmake、以及g++、gcc已安装)

cd /opt
mkdir pcre
cd pcre
wget https://udomain.dl.sourceforge.net/project/pcre/pcre/8.45/pcre-8.45.tar.gz
tar -zxvf pcre-8.45.tar.gz
cd pcre-8.45

apt install bzip2 libbz2-dev zlib1g-dev -y

/usr/bin/cmake --no-warn-unused-cli -DCMAKE_EXPORT_COMPILE_COMMANDS:BOOL=TRUE -DCMAKE_BUILD_TYPE:STRING=Debug -DCMAKE_C_COMPILER:FILEPATH=/usr/bin/gcc -DCMAKE_CXX_COMPILER:FILEPATH=/usr/bin/g++ -S/opt/pcre/pcre-8.45 -B/opt/pcre/pcre-8.45/build -G "Unix Makefiles"

/usr/bin/cmake --build /opt/pcre/pcre-8.45/build --config Debug --target install -j 58 --

2、安装openssl

apt-get install openssl libssl-dev -y

3、编译安装nginx

cd /opt
git clone https://github.com/nginx/nginx.git
cd nginx
./auto/configure --prefix=..  --with-http_ssl_module
make install

• 注意如果想直接安装到系统目录，请在去除configure命令的 --prefix 参数配置，例如:

./auto/configure --with-http_ssl_module

4、调试Nginx

• 编译安装好后，即可VSCode工具打开nginx源码目录
• 编写launch.json如下：

{
    // 使用 IntelliSense 了解相关属性。 
    // 悬停以查看现有属性的描述。
    // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "nginx",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/../sbin/nginx",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "setupCommands": [
                {
                    "description": "为 gdb 启用整齐打印",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                },
                {
                    "description": "将反汇编风格设置为 Intel",
                    "text": "-gdb-set disassembly-flavor intel",
                    "ignoreFailures": true
                }
            ]
        }

    ]
}

• 同时修改conf文件，添加如下参数（注意：配置文件路径在可执行程序的父目录的conf文件夹下）：

daemon off;
master_process off;
worker_processes  1;

• 即可断点调试nginx