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Subject: RE: _excStub & _excIntStub
From: "Jeff Hill" <johill@lanl.gov>
To: "'Owens, PH \(Peter\)'" <P.H.Owens@dl.ac.uk>, <tech-talk@aps.anl.gov>
Date: Wed, 8 Jan 2003 08:20:34 -0700
That message originates from the initHandlerAddrList() function in the
devLib library which has not been properly upgraded to support the PPC
architecture. However, looking in the source code I see that
initHandlerAddrList() is called in only one place, and that an ifdef has
been installed in devLib.c which presumably prevents it from being
called on PPC targets. See attached.

Jeff

LOCAL int
vectorInUse(
unsigned       vectorNumber
)
{
	static int	init;
    int     	i;
    myISR		*psub;

#   if CPU_FAMILY == PPC
        return FALSE;
#   endif

	if(!init){
		initHandlerAddrList();
		init = TRUE;
	}


> -----Original Message-----
> From: Owens, PH (Peter) [mailto:P.H.Owens@dl.ac.uk]
> Sent: Wednesday, January 08, 2003 8:02 AM
> To: tech-talk@aps.anl.gov
> Subject: _excStub & _excIntStub
> 
> When I run iocInit on a ppc 604 system I get some messeges
> warning me that
> the symbols
> _excStub & _excIntStub do not exist.
> They look if as if they are supposed to be VxWorks system calls:
> 
> 	-> iocInit
> 	IocLogClient: EPICS environment variable
> "EPICS_IOC_LOG_INET"
> undefined
> 	iocLogClient: logging disabled
> 
> ###############################################################
> #############
> 	###  @(#)EPICS IOC CORE built on Aug 17 2001
> 	###  @(#)Version R3.13.4 $2000/12/15 15:52:33$
> 
> ###############################################################
> #############
> 	Starting iocInit
> 	filename="../devLib.c" line number=970
> 	Internal failure initHandlerAddrList() _excStub not in sym
> table
> 	filename="../devLib.c" line number=970
> 	Internal failure initHandlerAddrList() _excIntStub not in
> sym table
> 	value = 0 = 0x0
> 	-> iocInit: All initialization complete
> 
> As far as I can make out all devLib.c does is to call
> symFindByNameEPICS
> to check if the symbols exist, but then does not seem to do
> anything with
> them if they
> do.
> 
> Should I worry about this?
> 
> Pete
> ---------------------------------------
> mailto:p.h.owens@dl.ac.uk
> phone:+44 (0)1925 603974
> fax:    +44 (0)1925 603124
> 
> CLRC
> Daresbury Laboratory
> Keckwick Lane
> Warrington
> WA4 4AD
> UK


References:
_excStub & _excIntStub Owens, PH (Peter)

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