On 11/29/14, 4:59 AM, Adrian Chadd wrote:
You can easily fire up a mips32 / mips64 emulator build - cross-build
a world+kernel, build an image, then run qemu-devel to boot it.

https://wiki.freebsd.org/FreeBSD/MipsEmulation

You should be able to get a 32 bit soft-float mips environment inside
there which you can use to trigger it.
(And also run whatever other floating point validation suite you may hvae.)

I suspect this is one for bde to look at.




-adrian


On 28 November 2014 at 11:07, Steve Kargl
<[email protected]> wrote:
On Fri, Nov 28, 2014 at 10:54:25AM -0800, Adrian Chadd wrote:
On 28 November 2014 at 10:34, Steve Kargl
<[email protected]> wrote:
In a thread on comp.lang.c, it was pointed out that softfloat
has a bug and in checking src/lib/libc/softfloat I confimed
the issue is present in FreeBSD.  What I hae not confirmed
is whether or not it is possible to hit this bug.  In fact,
it may only hit arm and mips.  Anyway, here's the patch
So we should just commit this?

I suspect the answer is yes, but I have no idea on how
to trigger this code path.  I also have no access to
arm or mips hardware where the problem may manifest only.

It may also be appropriate to have someone else confirm
that the patch is indeed correct.

--
steve
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