Handle the kill packet

src/gdbserver.rs

@@ -162,6 +162,8 @@ impl GdbConnection {
             if body == "QStartNoAckMode" {
                 self.ack_messages = false;
                 res.send_ok().await?;
+            } else if body == "k" {
+                return Ok(());
             } else {
                 // unrecognized command
                 res.send().await?;