Re: 64-bit EPICS anyone?

["Ernest L. Williams Jr." <ernesto@ornl.gov>]

On Mon, 2005-10-17 at 17:28 -0400, Steven Hartman wrote:
> On Sat, 15 Oct 2005, Ernest L. Williams Jr. wrote:
> 
> > So EPICS BASE is really running in 64-bit mode, wow that was easy.
> > I hope something is not broken at run time.
> 
> I played with epics base on 64-bit sparc (Solaris) a number of years ago
> (but never bothered to put it into widespread use).  As far as I could
> tell, everything with base was fine. I do not know about various
> extensions, though.
> 
> The big caveat is to avoid mixing 32- and 64-bit libraries/applications.
> Your approach of a separate HOST_ARCH (and hence installation directories)
> with linux-x86_64 is likely necessary.  Depending upon how various
> distributions have configured gcc defaults, it may also be desirable to
> explicitly set the compiler flags (-m32 for linux-x86 and -m64 for
> linux-x86_64) so you don't inadvertently get a mix within an install
> directory depending upon the build host.
We are starting with 64-bit only mode to see how far we can get. :)

I am having a few problems with some of the (openmotif-based) extensions
at run-time but are working through the problems.



Thanks,
Ernest L. Williams Jr.
SNS Control Systems Group
ORNL



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