Experimental Physics and Industrial Control System

Hi Goetz,

On Thursday 27 May 2010 07:44:23 Goetz Pfeiffer wrote:

I use Epics 3.14.8 for my application. I recently got rid of two of my
sequencer programs due to various optimizations. But I still had a
"registrar" statement in my dbd file, now for a module that no longer
existed.

You should have seen a load failure complaining about missing symbols of the
form pvar_func_<routine>  for each of your missing registrar routines.  Those
load failures should never be ignored, they indicate problems of this kind.

I verified that any "registrar" statement for a non-existing module
produces this error. But if you see this on the IOC console you have no
idea whats wrong with your program. An error message like "invalid
registrar [registrar-name]" would be much better.

Does the newest Epics release still show this behavior and if it is so,
are any plans to fix this ?

Please check whether you were getting those load errors or not.  The
idcp_registerRecordDeviceDriver() subroutine that gets generated from your
IOC's DBD file just calls every registrar function directly, it doesn't
currently have the names of those routines as strings.  It could detect this
case, but the load errors should be sufficient to tell you there's something
wrong.

- Andrew

thank you for your quick reply. You are right, when I have a registrar
statement for a non-existing module "blah" I get this error message on the
console (before "memPartAlloc: block too big"):

ld < idcp.munch
Undefined symbol: pvar_func_blah (binding 1 type 0)
sysAtReboot not found. epicsExit will not be called by reboot.
value = 27253064 = 0x19fd948

--
Dipl. Ing. Götz Pfeiffer
Software Engineer - Insertion Device Control

Albert-Einstein-Str. 15, D-12489 BERLIN
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References:

Epics 3.14.8: faulty registrar statement in dbd causes memPartAlloc error on vxWorks Goetz Pfeiffer

Re: Epics 3.14.8: faulty registrar statement in dbd causes memPartAlloc error on vxWorks Andrew Johnson

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