Date: Tue, 13 Mar 2012 20:36:32 +0530 From: "Jayachandran C." <c.jayachandran@gmail.com> To: Juli Mallett <juli@clockworksquid.com> Cc: "freebsd-mips@FreeBSD.org" <freebsd-mips@freebsd.org> Subject: Re: Enforcing soft-float. Message-ID: <CA%2B7sy7DVk6_gwMGBQYsaQ=oyxJbnjN7nP8u-Hwb5TTP8VZqKGQ@mail.gmail.com> In-Reply-To: <CACVs6=-WCeOB5q-pLzXgfjT5802KvnD%2B8Xy6h2b7sy9inWF27Q@mail.gmail.com> References: <CACVs6=9oPR0O0M9VorxY6L7xgRn3JBQqwrJ4M4_j9ZELER7Pmg@mail.gmail.com> <CA%2B7sy7DOOiSBUAT_zQRFfDmgGWwNMT80fciohr=S2mM6fEMDKg@mail.gmail.com> <CACVs6=-WCeOB5q-pLzXgfjT5802KvnD%2B8Xy6h2b7sy9inWF27Q@mail.gmail.com>
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On Tue, Mar 13, 2012 at 8:20 PM, Juli Mallett <juli@clockworksquid.com> wro= te: > On Tue, Mar 13, 2012 at 07:41, Jayachandran C. <c.jayachandran@gmail.com>= wrote: >> On Tue, Mar 13, 2012 at 12:12 PM, Juli Mallett <juli@clockworksquid.com>= wrote: >>> Greetings, people of mips@, >>> >>> I think that at least with 64-bit kernels, MipsFPTrap should kill the >>> running program. =A0Does anyone object to this? =A0The FP code is not e= ven >>> remotely 64-bit safe. =A0I don't care/dare to correct it. =A0Does anyon= e? >> >> Looks like we share this code with NetBSD. I have not looked in >> detail, but the NetBSD code seems to have the ifdefs for n64. Any idea >> if we can just import it? > > We could, and we could update MipsFPTrap and friends from NetBSD (or > even do it by hand), but that's not something I want to do since I > don't need to run binaries compiled to use hardware floating point. I think we will need to support building hard-float and soft-float user-space. I was looking at this for XLP before I got pulled into other things. FP emulation can be useful in that environment. But now, you could just take out the whole thing. JC.
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