It's often said that all Chinese martial arts are derived from Shaolin martial arts. Though that's likely hyperbole (or even outright untruth), it's commonly accepted as wulin lore.
Buddhism arrived in China around 200 BCE, during the Han Dynasty. The Shaolin Temple itself was not established until the 5th Century CE, during the chaotic period between the Han and Tang eras. Chinese civilization was already many millennia old by that point, however, and it's doubtful that NO Chinese martial arts or martial society existed before that point. No wuxia stories I know of, however, are set in the pre-Shaolin era. What do you imagine the pre-Shaolin period of Chinese wulin was like?