Hello folks, http://www.rockbox.org/tracker/task/12302 adds backtrace log to the panic screen on ARMs. This is simple port of http://www.mcternan.me.uk/ArmStackUnwinding/. The approach to take this backtrace is not perfect and has limitations BUT it doesn't need any special symbols or something to unwind stack frames. I am aware that the code itself would need some polish (unneeded typedefs, dos line ends etc.) but first I am interested if we want something like this at all. I played a bit with this inserting asm snippet causing data abort in various places and produced backtrace looked reasonable - still more tests needed.
wo