[Bug 265241] Runaway builds on armv6, armv7 in port cad/iverilog

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=265241

--- Comment #16 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
(In reply to Ed Maste from comment #15)

But do the eMAG's support direct aarch32 and armv7 code execution,
like Cortex-A72's do, for example? I think that was Yuri's point
in the suggestion.

If they did, then armv7 poudriere jails could be used to build
ports for armv7 without use of of the problematical qemu
environment. (That is what I do on the HoneyComb that I have
access to. But that is a 16 core Cortex-A72 context. At this
point I build for main [so: 14] but could easily build for
stable/13 and releng/13.1 via such armv7 jails. I've done so
in the past.)

(I'll note that there are a few armv7 ports that work when
there are only 4 cores put to use but that fail for memory
space issues when 16 cores are put to use instead. I've
actually test built such on a RPi4B to check the status on
rare occasion. So I'm not claiming there would be no oddities
for building on aarch64 that was also aarch32/armv7 capable,
but far fewer than for qemu use.)

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