x86 本地调试： .vscode 目录下 launch.json 文件内容模板，

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Debug",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/build_x86/HelloWorld",   //program 调试哪个程序：路径
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "miDebuggerPath": "/usr/bin/gdb",   //GDB调试器 路径
            "setupCommands": [
                {
                    "description": "为 gdb 启用整齐打印",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ]
        }
    ]
}

虚拟机 + ARM 交叉编译 + GDB 远程调试： .vscode 目录下 launch.json 文件内容模板：

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Debug ARM Remote",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/gdbtest", //ARM 可执行文件路径
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "miDebuggerPath": "/usr/local/arm/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gdb", // ARM 版本 GDB
            "miDebuggerServerAddress": "192.168.137.50:2001",    // 远程服务器地址，开发板ip
            "setupCommands": [
                {
                    "description": "为 gdb 启用整齐打印",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                },
            ]
        }
    ]
}

 远程调试：启动开发板上的 gdbserver，输入命令： gdbserver 192.168.137.50:2001 gdbtest

点击 VSCode 上的“调试” ->“启动调试”按钮，等待连接成功。