The Spain defender says he feels at "home" with the Spanish champs.
"Barca are my family, my life. In life you never know, you cannot say you're not going to do. It's true that [my future] depends on many factors, but come on, the club are my life," he said at a press conference.
"I was born in Barcelona, I live there, they're my family, my home and it's certainly where I want to stay.
"For most of my career, I've been here with the exception of a spell at Manchester United, but this is where I want to be for many more years and this is where I want to finish my career."