Building a GCC backend for the STM8

[Sophie 'Tyalie' Friedrich]

Hello dear people,

I want to try building a GCC compiler backend for the STM8 
micro-controller target in order to make this wonderful architecture 
more accessible.

But as I'm fairly new in this area of building compiler backends for 
GCC, I would need a bit of guidance / read material to get started. Do 
you have recommendations for anything? And is there interest in such work?

With best regards
Tyalie