I avoid vendor toolchains and BSPs just because of how buggy they are. From my perspective, it's much better to reproduce a bug with a 20-line C or assembler f

I avoid vendor toolchains and BSPs just because of how buggy they are. From my perspective, it's much better to reproduce a bug with a 20-line C or assembler file that compiles with upstream gcc, completely ruling all of their custom stuff out as the root cause. Just tell me what the silicon does when I poke this register and I'll work around it.