jemalloc: Merge from jemalloc 5.3.0 vendor branch

This brings in a merge from jemalloc 5.3.0. It's almost fully scripted, except:
Three conflicts resolved by hand:
include/jemalloc/internal/test_h

jemalloc: Merge from jemalloc 5.3.0 vendor branch

This brings in a merge from jemalloc 5.3.0. It's almost fully scripted, except:
Three conflicts resolved by hand:
include/jemalloc/internal/test_hooks.h Use the new name
src/extent.c Use the new code
src/jemalloc.c Use the new code since je_realloc has moved

The script is recorded in FREEBSD-upgrade. The old script did svn
commands that were basically a rebase of our changes. This update has a
series of diff reduction changes before this.

Note: I'd planned on fixing the above three conflicts with commits, but
ran out of time when I did this work in January. I got discouraged when
jemalloc was EOL'd and didn't pick this back up. I did the above by hand
to get this into FreeBSD 15.0

This work is a repeat of the work by Minsoo Choo who did all these
changes and created a pull request. Given the importance of jemalloc, I
audited these changes by redoing them in this series of commits (and
with the script that was checked in). I did this to confince myself and
anybody else in doubt that there was no supply chain attack. The diffs
between this series of commits and Minsoo's work are minor (though the
version skew makes adds some noise). Interested parties can independent
audit each step, I hope. I've listed Minsoo as a co-author since without
his pull request to test again, this wouldn't have been possible.

Thanks to brooks@ for help with getting the jemalloc 3 ABI compat
symbols right.

Co-authored-by: Minsoo Choo <minsoochoo0122@proton.me>
Pull Request: https://github.com/freebsd/freebsd-src/pull/1337
Sponsored by: Netflix

show more ...