vs code艰难配置c++的cmake调试（launch.json与task.json写法）

前言

vscode编辑器很牛逼，但是对小白来说用cmake配置完整版调试c++有很大难度。当然我也是小白，摸索了老长时间，整理如下：

流程

1.安装mingw和cmake，vscode等教程就略过了，网上乌央乌央很多；

2.安装vscode插件：c/c++, CMake, CMake Tools

3.接着就可以新建project目录，快乐写代码，写完保存，

4.开始进入正题：在project目录下新建CMakeLists.txt

project(MYPROJECT)

# 方法一：将*.cpp全放进SOURCES
set( SOURCES
     ./main.cpp
     ./swap.cpp

)

# 方法二：将*.cpp全放进SOURCES
# aux_source_directory(. SOURCES)   

add_executable(main ${SOURCES})

# add_executable(main main.cpp swap.cpp)

5.快捷键ctrl+shift+p搜索cmake:configure，点击选择gcc8.1那个选项，然后就会生成一个build目录；

6.在*.cpp的文件界面，选择调试，创建launch.json，选择调试器C++(GDB/LLDB)，

 接着添加配置

 修改launch.json

{
    // 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": "(gdb) 启动",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/build/main.exe",     // gdb执行的调试文件
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",   //文件所在的文件夹路径，也即/home/Coding/Test/.vscode
            "environment": [],
            "externalConsole": true,   // 调试时是否显示控制台窗口，一般设置为true显示控制台
            "MIMode": "gdb",
            "miDebuggerPath": "gdb",   // 改为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
                }
            ],
            // 此处配置为debug前需要执行的任务，是task.json里面的"label"
            "preLaunchTask": "Build"
        },
    ]
}

 7.终端->配置默认任务，选择“c/c++: g++.exe生成活动文件”， 

修改task.json如下：

{
	"version": "2.0.0",
	"options": {
		"cwd": "${workspaceFolder}/build"
	},
	"tasks": [
		{
			"type": "shell",
			"label": "cmake",
			"command": "cmake",
			"args": [
				".."
			]
		},
		{
			"label": "make",
			"group": {
				"kind": "build",
				"isDefault": true
			},
			"command": "mingw32-make.exe",
			"args": [

			]
		},
		{
			"label": "Build",    // launch.json里面的preLaunchTask
			"dependsOn":[
				"cmake",
				"make"
			]
		}
	]
}

总结：

调试是按照launch.json文件进行的，launch.json里面的配置项“preLaunchTask”指定按照task.json里面的配置进行。task.json配置了用cmake .. 和 mingw32-make来生成可调式文件

调试快捷键：

F5  开始调试
F10 步进