Sync and Debug (gdbserver) C/C++ programs in a Raspberry-Pi with SSH and rsync using VSCode Tasks

launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "gdb",
            "request": "attach",
            "name": "Attach to gdbserver",
            "executable": "./a.out",
            "target": "XXX.XXX.XXX.XXX:2345",
            "remote": true,
            "cwd": "${workspaceRoot}",
            "valuesFormatting": "parseText",
            "gdbpath": "gdb-multiarch",
            "autorun": ["set architecture arm", "set sysroot"],
        },
        ]
}

tasks.json

{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "Syncronize Executable",
            "type": "shell",
            "command": "rsync",
            "args": [
                "-zravh",
                "./a.out",
                "<USER>@XXX.XXX.XXX.XXX:/home/<USER>/"
            ]
        },
        {
            "label": "Run gdbserver on target",
            "type": "shell",
            "command": "ssh", // uses key-based authentication
            "args": [
                "<USER>@XXX.XXX.XXX.XXX",
                "gdbserver",
                ":2345",
                "./a.out"
            ]
        },
        {
            "label": "Debug on Target",
            "dependsOrder": "sequence",
            "dependsOn": [
                "Syncronize Executable",
                "Run gdbserver on target"
            ],
            "problemMatcher": [],
            "group": { // CTRL+SHIFT+B will start the task
                "kind": "build",
                "isDefault": true
            }
        }
    ]
}