Experimental Physics and
Industrial Control System

Dirk Zimoch via Core-talk <[email protected]> · Wed, 3 Apr 2019 10:17:43 +0200

On 02.04.19 18:15, Michael Davidsaver wrote:

Could you add something concerning the application which is call errSymbolAdd()?
It it published anywhere?

The code in question is the ik320 driver by Till Straumann from 1999.

It can be found here:
https://github.com/epics-modules/vme/blob/master/vmeApp/src/drvIK320ErrStat.c

I had modified the driver not to depend on vxWorks any more (as we have

Linux VME systems) and to use EPICS osi functions. All worked well until

newer gcc versions complained about missing function prototypes and

warned that in future this will be an error. When I wanted to add the

header file for errSymbolAdd() I found that the required file name has

changed in EPICS 7.

This kind of change makes the code a bit ugly because I had to add:
#include <epicsVersion.h>
#if EPICS_VERSION >= 7
#include <errSymTbl.h>
#else
#include <errMdef.h>
#endif

With most other drivers I have converted from 3.13/vxWorks to 3.14+/osi,

I only had to add includes which used to be included indirectly by other

headers but are not any more in newer EPICS versions. This was usually

no problem, because the header files used already existed in earlier

EPICS versions and thus the driver still compiled with earlier versions.

However now I have the situation where I need a header file in EPICS 7

which did not exist in EPICS 3.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System