os_kernel_lab/.vscode/tasks.json

{
    "tasks": [
        {
            "label": "make gdb",
            "type": "shell",
            "command": "bash ${workspaceFolder}/background.sh",
            "isBackground": true,
            "options": {
                "env": {
                    "DISPLAY": ":0",
                },
                "cwd": "${workspaceFolder}/labcodes_answer/lab4_result"
            },
            
            "problemMatcher": [
                {
                    "pattern": [
                      {
                        "regexp": ".",
                        "file": 1,
                        "location": 2,
                        "message": 3
                      }
                    ],
                    "background": {
                      "activeOnStart": true,
                      "beginsPattern": "starting QEMU",
                      "endsPattern": "starting QEMU",
                    }
                }
            ]
        },
        {
            "label": "shutdown gdb",
            "type": "process",
            "command": "pkill",
            "isBackground": false,
            "args": ["qemu-system-i38"], // 我也不知道为什么这个进程名字是i38而不是i386
        },

    ],
    "version": "2.0.0"
}