Basketball Insiders Michael Scotto first reported the transaction.
McAdoo, 24, has spent the last three seasons with the Golden State Warriors after going undrafted in 2014.
The North Carolina product averaged 1.8 points and 1 rebound in 52 games — with two starts — last season with the Warriors.
In three years in the NBA, McAdoo (6-9, 240) has played in 108 games. In three seasons at UNC, McAdoo averaged 11.4 points and 5.9 rebounds.