[RFC] arm: use built-in byte swap function

[Nicolas Pitre]

On Wed, 20 Feb 2013, Woodhouse, David wrote:

> On Wed, 2013-02-20 at 09:06 -0500, Nicolas Pitre wrote:
> > On Wed, 20 Feb 2013, Woodhouse, David wrote:
> > 
> > > On Wed, 2013-02-20 at 08:36 -0500, Nicolas Pitre wrote:
> > > > You'll have the same issue wrt the above whether or not the source
> > > > file is C or assembly.
> > > 
> > > Hm, true. I was thinking of the code itself (which is
> > > position-independent anyway), rather than the flags in the object file.
> > > 
> > > So just ship a .S file and for the decompressor (if we need it at all)
> > > rebuild it just the same as we do the *other* libgcc code like ashldi3.S
> > > etc.
> > 
> > ... in which case there is no harm shipping a .c file and trivially 
> > enforcing -O2, the rest being equal.
> 
> For today's compilers, unless the wind changes.

We'll adapt if necessary.  Going with -O2 should remain pretty safe anyway.


Nicolas