vs code + CMake 远程编译和调试c/c++程序

本地系统是windows，远程服务器是Linux，如何远程编译和调试服务器端的c/c++程序？
一种比较好的方式是：
vs code + remote tools + CMake

1 安装VS CODE

2 在本地的VS CODE安装remote - SSH插件

3 通过remote-ssh远程连接到服务器，然后在远程服务器上的VS CODE安装如下插件：

4 打开远程服务器上的文件夹
菜单”File”->”Open Folder”，选择test，单击”OK”

5 添加源文件
在test新建一个文件”main.c”,如下：

#include <stdio.h>
int main(int argc, char *argv[])
{
    printf("Hello world!\n");
    return 0;
}

6 添加CMakeLists.txt文件
在test中添加CMakeLists.txt文件，如下：

cmake_minimum_required(VERSION 2.6)
project(test_cmake)
set(CMAKE_CXX_FLAGS, "${CMAKE_CXX_FLAGS} -g") #debug
set(EXECUTABLE_OUTPUT_PATH  ${PROJECT_SOURCE_DIR})
add_executable(test_cmake main.cc)

左侧side bar底部多出了一个CMake， 单击它切换到CMake。
左侧side bar如果没有CMake，可在side bar上右键单击，在弹出菜单中勾选CMake。

单击该右侧的Configuation（配置所有项目）按钮，等待配置完毕。在该窗口出现了test_cmake…

切换到explorer, 发现多了build文件夹，展开build，发现多了很多文件，但是还没生成文件test_cmake

切换到CMake, 点击build

此时再去build目录，发现生成了test_cmake文件。

7 状态栏CMake Tool
CMake:Select a kit

如上图，vs code的底部状态栏，第5个区域显示的是”No Kit Selected”，表示没有选择 CMake kit，单击该项，或者F1，CMake:Select a kit. select a kit

8 create a launch.json file
单击左侧的dubug, click “create a launch.json file”, or click key F5

select environment

select a configuration

then a file “launch.json” is created in folder “.vscode”, make some change as below:

{
  // Use IntelliSense to learn about possible attributes.
  // Hover to view descriptions of existing attributes.
  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
  "version": "0.2.0",
  "configurations": [
    {
      "name": "g++-7 build and debug active file",
      "type": "cppdbg",
      "request": "launch",
      "program": "${command:cmake.launchTargetPath}", //modify
      "args": [],
      "stopAtEntry": false,
      "cwd": "${workspaceFolder}",
      "environment": [],
      "externalConsole": false,
      "MIMode": "gdb",
      "setupCommands": [
        {
          "description": "Enable pretty-printing for gdb",
          "text": "-enable-pretty-printing",
          "ignoreFailures": true
        }
      ],
      "preLaunchTask": "g++ test", //the task label in task.json
      "miDebuggerPath": "/usr/bin/gdb"
    }
  ]
}

9 create a file task.json
按F5，弹出提示框，选择”Configure Task”

then a file “task.json” is created in folder “.vscode”, make some change as below:

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "type": "shell",
            "label": "g++ test",
            "command": "cmake --build ${workspaceFolder}/build --config Debug --target all -- -j 50",
            "args": [],
            "options": {
                "cwd": "/usr/bin"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": "build"
        }
    ]
}

编译和调试

编译 快捷键:F7
调试 快捷键:F5
如果断点无效，就删除上述非源文件，从第6步开始，重新做一遍即可。