Experimental Physics and
Industrial Control System

Dehong Zhang <[email protected]> · Fri, 14 Nov 2008 17:15:33 -0600

Hi Andrew,

Thank you so much!  It is working.

Now I need to re-build my CaChannel stuff.  That is for next week.

Best regards,
Dehong

----- Original Message -----
From: Andrew Johnson <[email protected]>
Date: Friday, November 14, 2008 2:13 pm
Subject: Re: WireSet missing with 3.14.10
To: Dehong Zhang <[email protected]>
Cc: [email protected]

> Hi Dehong,
> 
> On Friday 14 November 2008 12:28:23 Dehong Zhang wrote:
> >
> > Our board actually has MPC7455 processor, with AltiVec coprocessor.
> > I followed your suggestions and tried vxWorks-ppc604_altivec.  Still
> > got the same error messages:
> 
> Ok, now your installation is using all the standard build rules so I 
> believe 
> that the problem is mine and not yours.  Thanks for posting the IOC 
> console 
> log, that also helps a lot.
> 
> > # Epics Startup command file
> > # cd "/home/vxworks_boot/fe/hinst1/epics"
> >
> > # putenv("EPICS_TS_NTP_INET='127.0.0.1'")
> > putenv("EPICS_CA_MAX_ARRAY_BYTES=1048576")
> > value = 0 = 0x0
> >
> > ld < hinst1.munch
> > Warning: module 0x329d640 holds reference to undefined symbol
> > _Z7WireSetIfEvRKT_Ph.
> > Warning: module 0x329d640 holds reference to undefined symbol 
> _Z7WireSetIiEvRKT_Ph.
> > Warning: module 0x329d640 holds reference to undefined symbol 
> _Z7WireSetIsEvRKT_Ph.
> 
> I tried various versions of c++filt for gcc 3.x, and finally found 
> that the 
> version for my linux system (which actually has gcc 4.1.2) can 
> translate 
> those symbols, as long as I strip off the trailing '.', giving this:
> 
> Warning: module 0x329d640 holds reference to undefined symbol
>     void WireSet<float>(float const&, unsigned char*)
> Warning: module 0x329d640 holds reference to undefined symbol
>     void WireSet<int>(int const&, unsigned char*)
> Warning: module 0x329d640 holds reference to undefined symbol
>     void WireSet<short>(short const&, unsigned char*)
> 
> Those functions should be being in-lined by the compiler wherever they 
> are 
> used (they are on my systems), so I don't understand why you're 
> getting this 
> error.  It may just be an issue with the vxWorks 6.1 compiler though — 
> if 
> there are any other vxWorks 6.x users reading, do you see this problem?
> 
> However it is easy to explicitly instantiate the functions manually.  
> Apply 
> the attached patch file to your base/src/ca/templateInstances.cpp file 
> and 
> run 'make' first at the top of base and then in your IOC application top.
> 
> I think that should solve the problem; please let me know if it does 
> so I can 
> commit that change for the next release of Base.
> 
> - Andrew
> -- 
> Talk is cheap. Show me the code. -- Linus Torvalds

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System