Code with apache-2 on /usr/src

[Steve Kargl]

On Mon, May 28, 2018 at 04:08:49PM -0300, Adhemerval Zanella wrote:
> 
> On 28/05/2018 16:04, Konstantin Belousov wrote:
> > On Mon, May 28, 2018 at 03:33:47PM -0300, Adhemerval Zanella wrote:
> >> Hi all,
> >>
> >> I am evaluating adding the ARM optimized math routines [1] on FreeBSD msum
> >> library and I would like to check which the policy regarding licensing on
> >> /usr/src code.  The optimized math code is licensed on Apache-2 and afaik
> >> it should be compatible with FreeBSD BDS license, is there anything
> >> impending to use the code as-is on msum? Or do I need to adjust and check
> >> with author if the idea is re-license?
> >>
> >> [1] https://github.com/ARM-software/optimized-routines
> > 
> > Are you asking only about the license's compatibility, or is you intent
> > to contribute the ARM libm code to the FreeBSD project ?
> > 
> 
> My intention is to contribute the ARM libm code to the FreeBSD msum library.

The above URL seems to contain only single precision code,
e.g., sinf(x).  What benefit does this code have over the
current implementations of these functions?  Doesn't ARM
support at least a double precision type?  Why have an
algorithms for single precision that differ from the 
algorithms at higher precision?

-- 
Steve