To debug xv6 from VScode

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": "Debug",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/kernel/kernel",
            "cwd": "${workspaceFolder}",
            "miDebuggerPath": "/opt/homebrew/bin/riscv64-elf-gdb",
            "miDebuggerServerAddress": "127.0.0.1:25501",
            "MIMode": "gdb",
            "stopAtEntry": true,
            "preLaunchTask": "fix_gdbinit",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": false
                }
            ]
        }
    ]
}

tasks.json

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "label": "fix_gdbinit",
            "type": "shell",
            "command": "sed -i '' -e '/^target remote/d' ${workspaceFolder}/.gdbinit"
        }
    ]
}