Ack.
In the meanwhile I managed to dig up some additional background on this, eg
https://sourceware.org/pipermail/libc-alpha/2020-July/116135.html,
https://lwn.net/Articles/844831/ and
https://antlarr.io/2021/03/hackweek-20-glibc-hwcaps-in-opensuse/ (which even
routes back here :laughing: ).
Indeed these progressive levels (no matter how artificial it may be) is the
first glimpse of sanity in the arch space that I've seen in a while. This is
something that can reasonably be packaged, and handled by package managers
operating on various levels as well.
So. Ack for the concept at least, I'll not let this get stuck the way the znver
stuff did, because there's hope here. Thanks for the initiative, and the
education. I hadn't followed the hwcap side at all really.
I'd still try to see if this *really* isn't exported by glibc somehow, eg
couldn't we take advantage of the glibc-hwcaps feature somehow (and if that
leaves other libc's stuck with one level of x86_64, I'm not going to cry a
river).
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