Re: memcpy() in swsusp (was: Re: [PATCH 2/2] Fix console handling during suspend/resume)

Rafael J. Wysocki
2006-07-07T08:20:16Z

On Friday 07 July 2006 00:06, Dave Jones wrote:
> On Thu, Jul 06, 2006 at 11:18:55PM +0200, Rafael J. Wysocki wrote:
> > On Thursday 06 July 2006 23:07, David Brownell wrote:
> > > On Thursday 06 July 2006 2:01 pm, Dave Jones wrote:
> > >
> > > > Why not just use __memcpy instead? Which should be safe on all archs
> > > > to do the simplest possible memcpy.
> > >
> > > Or __constant_memcpy(...PAGE_SIZE) ? :)
> >
> > Is __memcpy() defined on all architectures? Eg. ppc?
>
> Seems not. __constant_memcpy is a gcc built-in though isn't it ?

Well, I'm not sure. i386 and sparc define it explicitly.

Rafael