Ui_dbg_step_into_backwards : how does it work?

I noticed "ui_dbg_step_into_backwards” isn’t triggering any event. I tried the request_* equivalent too, but no luck - the debugger backend doesn’t propagate any event.

Any clue about how to make it work properly ?

I can’t find a single example of that API being used anywhere.

Found my answer after posting :

debugger declaration needs “DBG_FLAG_TTD” flag to be working.