Date: Fri, 10 Mar 2017 18:33:52 +0000 From: Andrew Gierth <andrew@tao11.riddles.org.uk> To: Konstantin Belousov <kostikbel@gmail.com> Cc: "freebsd-arm\@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: Is CPUTYPE=cortex-A7 supposed to work? Message-ID: <87pohpvvei.fsf@news-spur.riddles.org.uk> In-Reply-To: <20170310174444.GN16105@kib.kiev.ua> (Konstantin Belousov's message of "Fri, 10 Mar 2017 19:44:44 %2B0200") 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>
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>>>>> "Konstantin" == Konstantin Belousov <kostikbel@gmail.com> writes: Konstantin> The issue I see is that there is no reserved unused fields Konstantin> in mcontext_t on ARM, so probably some trick with not using Konstantin> fpu save area at all for fpu registers might be needed. There aren't any reserved fields, but the entire __fpu element of mcontext_t is currently unused in the sense that no register values are ever stored there by the kernel. -- Andrew.
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