Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Tue, 2 Dec 2014 17:38:41 -0600

Hi David,

On 12/02/2014 03:22 PM, Dudley, David wrote:
> Downloaded and compiled fine.
> 
> Most of the modules we’re using just needed some minor ‘tweaking’ to get
> working fine (actually, only about 3-4 needed changes, rest worked with
> no problems).

Thanks for the feedback there. We don't expect 3.15 to be a simple
drop-in replacement for 3.14.12, so you should thoroughly test your IOCs
after upgrading since there have been behaviour changes to several of
the record types which could affect application functionality.

> I’m having problems with the dbdExpand.pl program.  It keeps telling me
> that I have duplicated records when I try to build my IOCS, with a
> record name of blank.

Can you post a copy/paste showing the output from make with both the
commands being executed and the error messages you're getting. Also show
us the content of your configure/RELEASE file so we can see which
modules and the versions you're trying to build.

The new dbdExpand.pl script in 3.15 is stricter than the 3.14 dbExpand
program was about what it will accept, so you will probably have to
adjust the DBD files in your modules to get them to work with 3.15.

The errors you're seeing must be duplicate recordtype (not record
instance) definitions, which are no longer allowed. This means that a
device support generally shouldn't have any 'include "xRecord.dbd"'
statements inside its published DBD files, but it is allowed to use
empty record type declarations instead of including the record
definition if all it's doing is defining device support layers:

myDevice.dbd:
    recordtype(ai) {}    # optional declaration
    device(ai, INST_IO, myAiDset, "My device")

When it comes to an IOC's DBD file though, the full recordtype
definition must be included before any empty recordtype declarations are
seen.

This stuff is not terribly well documented yet, I'm still working on that...

- Andrew
-- 
People everywhere confuse what they read in newspapers with news.
-- A. J. Liebling

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System