Im Brazilian living in portugal. I have no documents.
I want to know what happens if i try to get out of europe, do they give me entry ban automatically? How can i come back to europe? Does it make any difference if i go to brazil from another country?
For example, if I go from germany to brasil, do they know i was illegal in portugal? What if i go from morocco?
And especially: where can i find this official information? I already search in many ways in many websites from eu, from portugal but i cant find anything related to that.

Thank you so much!