On Tue, Oct 18, 2022 at 03:33:17PM +0200, John Paul Adrian Glaubitz wrote: >Hi Helmut! > >On 10/18/22 12:48, Helmut Grohne wrote: >> I was also wondering about this Y2038 thingy and did some experiments. >> I'm reporting what I found to document it, but don't see much actionable >> stuff here. Many thanks to Arnd Bergmann for his input. >> >> Attempt #1: rebootstrap >> >> Given that I develop rebootstrap, attempting to use it for a time64 >> bootstrap seemed quite natural. I've been talking to this with Steve >> multiple times including DC22. The question was how to plug it in. In >> the end I went for Arnd's suggestion to set DPKG_*_APPEND variables to >> modify dpkg-buildflags. Not every package uses these flags, but a >> majority do. For a survey, this is probably good enough. > >I would love to do that for m68k as well. We could use this opportunity to >rebuild the m68k port with 32-bit alignment which would solve quite a number >of problems since many projects like LLVM and Qt assume a minimum alignment >of 32 bits while m68k still defaults to 16 bits. > >Since the time64 rebootstrap would break the ABI anyway, we could use to fix >alignment issue on m68k once and for all :-).
So the reason that we're talking about doing a replacement armhf port is for two reasons: * it's probably one of the few 32-bit arches that is likely to still be in routine use beyond 2038 (*many* embedded users depending on Debian stuff) * it's feasible to rebootstrap and break ABI as there isn't a large corpus of older-ABI binaries that people will care about supporting in the future. (This rules out i386 - the main reason to keep it around is just for the older binaries AFAICS.) I don't want to be rude, but I really don't see how m68k fits here. Of course, feel free to do a rebootstrap if you like, but I genuinely don't see any great need for it. -- Steve McIntyre, Cambridge, UK. st...@einval.com “Changing random stuff until your program works is bad coding practice, but if you do it fast enough it’s Machine Learning.” -- https://twitter.com/manisha72617183
