Hi Chris, Chris Marusich <cmmarus...@gmail.com> skribis:
> It's been almost half a year now, and we're not really any closer to > figuring out why the cross-built GCC bootstrap binary is > non-reproducible. It seems counter-productive to obsess about making > this specific binary reproducible, although I wish it could be so. > > What do you think about using the bootstrap binaries we built half a > year ago, and proceed with bootstrapping efforts? To be totally honest, > I'm feeling pretty exhausted by this bug, since I have spent so many > days trying to unravel it, and I haven't made any significant progress. > With no clear end in sight, I would really prefer to move on instead of > blocking the entire bootstrapping effort on this reproducibility bug. > The reproducibility of the bootstrap binaries is important, but simply > having any bootstrap binaries at all is also important. I think I have > done my due diligence to try making them reproducible. Most of them > are, but I just can't figure out why GCC isn't. I think it would be > best to proceed with the binaries we have. I didn’t follow the whole discussion nor did I try to investigate myself, but thanks a lot for going to great lengths trying to identify the issue; this is an impressive amount of work, and I can only share your disappointment. Given this effort, I agree that it may be best at this point to move on and start with these non-reproducible binaries. At least, the problem is now documented. > At this point, it might even make more sense to try bootstrapping for > powerpc64le instead of powerpc64, since the rest of the world seems to > be gravitating toward the little-endian variant on POWER9 hardware, and > thus various programs out there are more likely to be better tested on > powerpc64le than powerpc64. Yes, my understanding is that other people, in particular Tobias Platen and dftxbs3e, were looking at powerpc64le, so perhaps it’s a good idea to concentrate on that one? Anyhow, please let me know if/when bootstrap binaries should be uploaded to ftp.gnu.org (with a signed message). When updating bootstrap.scm to refer to them, please include the commit ID used to build them in the commit message. Thanks, Ludo’.
