is there a decent online tutorial on the basics of (ARM) toolchains?

i'm interested in finding a tutorial that discusses the fundamentals
of cross-compile toolchains. naturally, i'd use it in the context of
cross-compiling stuff for my BBB, but i'd like it to be general enough
to present a beginner-level tutorial for students who just want to
know what a toolchain is, how it works, the differences between them
and so on.

  anything like that out there? thanks.


You could find many valuable documents from Hope it helps.

Not sure this is what you want, but Jan Axelson has a nice tutorial for BB here