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Date:      Tue, 14 Mar 2017 14:50:23 +0000
From:      Andrew Gierth <andrew@tao11.riddles.org.uk>
To:        Michal Meloun <melounmichal@gmail.com>
Cc:        Konstantin Belousov <kostikbel@gmail.com>, mmel@freebsd.org, "freebsd-arm\@freebsd.org" <freebsd-arm@freebsd.org>
Subject:   Re: Is CPUTYPE=cortex-A7 supposed to work?
Message-ID:  <87bmt353ct.fsf@news-spur.riddles.org.uk>
In-Reply-To: <b56aeeb5-f619-3b44-efe7-848f2b98f3da@freebsd.org> (Michal Meloun's message of "Sun, 12 Mar 2017 09:17:35 %2B0100")
References:  <871suc3nv8.fsf@news-spur.riddles.org.uk> <CANCZdfq4EwH%2B_9FVNai8s6Y-gdTjHJ8dNkJwSrnF%2BSAkdwvYdg@mail.gmail.com> <8737ely05c.fsf@news-spur.riddles.org.uk> <CANCZdfpftVHaPahTOP0vxB-FR%2BKtpqY9JMJr=F2DGifD0fhKMQ@mail.gmail.com> <87wpbxw3yd.fsf@news-spur.riddles.org.uk> <20170310174444.GN16105@kib.kiev.ua> <b56aeeb5-f619-3b44-efe7-848f2b98f3da@freebsd.org>

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>>>>> "Michal" == Michal Meloun <melounmichal@gmail.com> writes:

 Michal> ARM is still tier2, but I significantly prefer getcontextx()
 Michal> (or any other, backward compatible) way.

 Michal> Unfortunately, on armv6, the VFP part of kernel <-> userland
 Michal> interaction is broken from day 1. The struct fpreg is also
 Michal> wrong and I'm not sure if or how we can to fix this in
 Michal> compatible way.

Is there anything I can do to help make progress on this?

-- 
Andrew.



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