From owner-freebsd-mips@FreeBSD.ORG  Tue Mar 13 15:06:34 2012
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Date: Tue, 13 Mar 2012 20:36:32 +0530
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From: "Jayachandran C." <c.jayachandran@gmail.com>
To: Juli Mallett <juli@clockworksquid.com>
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Cc: "freebsd-mips@FreeBSD.org" <freebsd-mips@freebsd.org>
Subject: Re: Enforcing soft-float.
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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.