Re: Help adding Measurement Computing support to IOC

[Mark Rivers via Tech-talk <tech-talk at aps.anl.gov>]

Hi Andrew,

• This is a situation where the module could make building downstream IOC applications simpler if it installed a cfg/CONFIG_MEASCOMP_MODULE file that sets build variables for use in the IOC Makefiles. The mrfIoc2 module provides a basic example of doing that.

These are the relevant lines from the measComp module Makefile that builds the IOC.

ifeq (win32-x86, $(findstring win32-x86, $(T_A)))

  measComp_LIBS += cbw32

  measCompApp_LIBS += cbw32

else ifeq (windows-x64, $(findstring windows-x64, $(T_A)))

  measComp_LIBS += cbw64

  measCompApp_LIBS += cbw64

endif

ifdef ULDAQ_DIR

  measCompApp_LIBS_Linux += uldaq

else

  measCompApp_SYS_LIBS_Linux += uldaq

endif

measCompApp_SYS_LIBS_Linux += usb-1.0

For Linux,, some users may want to install the vendor uldaq library in a non-system location, and point ULDAQ_DIR to it.  Others will install in a system location, e.g. /usr/local/bin.

What would be the syntax for incorporating the above lines into CONFIG_MEASCOMP_MODULE?

Thanks,

Mark

---

From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Johnson, Andrew N. via Tech-talk <tech-talk at aps.anl.gov>
Sent: Friday, October 11, 2024 5:42 PM
To: Jesse Hopkins <jhopkins1 at iit.edu>; EPICS Tech Talk <Tech-talk at aps.anl.gov>
Subject: Re: Help adding Measurement Computing support to IOC

 

Hi Jesse,

 

Your labjack_LIBS variable is missing the additional libraries which the measComp support code calls, and you might need a labjack_SYSLIBS setting as well. You’ll need to look at the Makefile in the measComp module which builds the test IOC to work out exactly what you’re going to need, it’s not trivial unfortunately.

 

This is a situation where the module could make building downstream IOC applications simpler if it installed a cfg/CONFIG_MEASCOMP_MODULE file that sets build variables for use in the IOC Makefiles. The mrfIoc2 module provides a basic example of doing that.

 

- Andrew

 

 

-- 

Complexity comes for free, Simplicity you have to work for.

 

 

On 10/11/24, 4:05 PM, "Tech-talk" <tech-talk-bounces at aps.anl.gov> wrote:

 

Hi folks,

 

I'm attempting to add support for Measurement Computing devices into an existing IOC (that I currently use with some LabJack devices). However, I'm having an issue with building the IOC.

 

As far as I can tell, the measurement computing support builds fine (I'm building it as part of synapps, but updated to the latest version of MeasComp in the git as of a couple of days ago). I can run one of the test IOCs that is included with the support in the synapps build without issue (in this case for the E-TC).

 

The problem comes when I try to add the support to my IOC. I go to rebuild the IOC and I get the following errors:

(main) biocat@dalek:/opt/epics/iocs/epics_iocs/soft_iocs/test$ make
make -C ./configure install
make[1]: Entering directory '/opt/epics/iocs/epics_iocs/soft_iocs/test/configure'
perl -CSD /opt/epics/base/bin/linux-x86_64/makeMakefile.pl O.linux-x86_64 ../..
mkdir -p O.Common
make -C O.linux-x86_64 -f ../Makefile TOP=../.. \
    T_A=linux-x86_64 install
make[2]: Entering directory '/opt/epics/iocs/epics_iocs/soft_iocs/test/configure/O.linux-x86_64'
perl -CSD /opt/epics/base/bin/linux-x86_64/convertRelease.pl checkRelease
make[2]: Leaving directory '/opt/epics/iocs/epics_iocs/soft_iocs/test/configure/O.linux-x86_64'
make[1]: Leaving directory '/opt/epics/iocs/epics_iocs/soft_iocs/test/configure'
make -C ./labjackApp install
make[1]: Entering directory '/opt/epics/iocs/epics_iocs/soft_iocs/test/labjackApp'
make -C ./src install
make[2]: Entering directory '/opt/epics/iocs/epics_iocs/soft_iocs/test/labjackApp/src'
perl -CSD /opt/epics/base/bin/linux-x86_64/makeMakefile.pl O.linux-x86_64 ../../..
mkdir -p O.Common
make -C O.linux-x86_64 -f ../Makefile TOP=../../.. \
    T_A=linux-x86_64 install
make[3]: Entering directory '/opt/epics/iocs/epics_iocs/soft_iocs/test/labjackApp/src/O.linux-x86_64'
/usr/bin/g++  -D_GNU_SOURCE -D_DEFAULT_SOURCE          -D_X86_64_ -DUNIX  -Dlinux      -O3 -g   -Wall      -mtune=generic     -m64  -I. -I../O.Common -I. -I. -I.. -I../../../include/compiler/gcc -I../../../include/os/Linux -I../../../include     -I/opt/epics/synApps_6_3/support/autosave-R5-11/include/os/Linux -I/opt/epics/synApps_6_3/support/autosave-R5-11/include   -I/opt/epics/synApps_6_3/support/asyn-R4-44-2/include   -I/opt/epics/synApps_6_3/support/busy-R1-7-4/include   -I/opt/epics/synApps_6_3/support/LabJack-master/include   -I/opt/epics/synApps_6_3/support/measComp-master/include -I/opt/epics/base/include/compiler/gcc -I/opt/epics/base/include/os/Linux -I/opt/epics/base/include        -MM -MF labjackMain.d  ../labjackMain.cpp
Creating dbd file labjack.dbd
perl -CSD /opt/epics/base/bin/linux-x86_64/dbdExpand.pl   -I. -I.. -I../O.Common -I../../../dbd -I/opt/epics/synApps_6_3/support/autosave-R5-11/dbd -I/opt/epics/synApps_6_3/support/asyn-R4-44-2/dbd -I/opt/epics/synApps_6_3/support/busy-R1-7-4/dbd -I/opt/epics/synApps_6_3/support/LabJack-master/dbd -I/opt/epics/synApps_6_3/support/measComp-master/dbd -I/opt/epics/base/dbd -o labjack.dbd base.dbd asyn.dbd busySupport.dbd asSupport.dbd LabJackSupport.dbd measCompSupport.dbd
perl -CSD /opt/epics/base/bin/linux-x86_64/registerRecordDeviceDriver.pl   -I. -I.. -I../O.Common -I../../../dbd -I/opt/epics/synApps_6_3/support/autosave-R5-11/dbd -I/opt/epics/synApps_6_3/support/asyn-R4-44-2/dbd -I/opt/epics/synApps_6_3/support/busy-R1-7-4/dbd -I/opt/epics/synApps_6_3/support/LabJack-master/dbd -I/opt/epics/synApps_6_3/support/measComp-master/dbd -I/opt/epics/base/dbd    -o labjack_registerRecordDeviceDriver.cpp \
            ../O.Common/labjack.dbd labjack_registerRecordDeviceDriver /opt/epics/iocs/epics_iocs/soft_iocs/test
/usr/bin/g++  -D_GNU_SOURCE -D_DEFAULT_SOURCE          -D_X86_64_ -DUNIX  -Dlinux      -O3 -g   -Wall      -mtune=generic     -m64  -I. -I../O.Common -I. -I. -I.. -I../../../include/compiler/gcc -I../../../include/os/Linux -I../../../include     -I/opt/epics/synApps_6_3/support/autosave-R5-11/include/os/Linux -I/opt/epics/synApps_6_3/support/autosave-R5-11/include   -I/opt/epics/synApps_6_3/support/asyn-R4-44-2/include   -I/opt/epics/synApps_6_3/support/busy-R1-7-4/include   -I/opt/epics/synApps_6_3/support/LabJack-master/include   -I/opt/epics/synApps_6_3/support/measComp-master/include -I/opt/epics/base/include/compiler/gcc -I/opt/epics/base/include/os/Linux -I/opt/epics/base/include        -MM -MF labjack_registerRecordDeviceDriver.d  labjack_registerRecordDeviceDriver.cpp
Installing created dbd file ../../../dbd/labjack.dbd
/usr/bin/g++  -D_GNU_SOURCE -D_DEFAULT_SOURCE          -D_X86_64_ -DUNIX  -Dlinux      -O3 -g   -Wall      -mtune=generic     -m64  -I. -I../O.Common -I. -I. -I.. -I../../../include/compiler/gcc -I../../../include/os/Linux -I../../../include     -I/opt/epics/synApps_6_3/support/autosave-R5-11/include/os/Linux -I/opt/epics/synApps_6_3/support/autosave-R5-11/include   -I/opt/epics/synApps_6_3/support/asyn-R4-44-2/include   -I/opt/epics/synApps_6_3/support/busy-R1-7-4/include   -I/opt/epics/synApps_6_3/support/LabJack-master/include   -I/opt/epics/synApps_6_3/support/measComp-master/include -I/opt/epics/base/include/compiler/gcc -I/opt/epics/base/include/os/Linux -I/opt/epics/base/include        -c labjack_registerRecordDeviceDriver.cpp
/usr/bin/g++  -D_GNU_SOURCE -D_DEFAULT_SOURCE          -D_X86_64_ -DUNIX  -Dlinux      -O3 -g   -Wall      -mtune=generic     -m64  -I. -I../O.Common -I. -I. -I.. -I../../../include/compiler/gcc -I../../../include/os/Linux -I../../../include     -I/opt/epics/synApps_6_3/support/autosave-R5-11/include/os/Linux -I/opt/epics/synApps_6_3/support/autosave-R5-11/include   -I/opt/epics/synApps_6_3/support/asyn-R4-44-2/include   -I/opt/epics/synApps_6_3/support/busy-R1-7-4/include   -I/opt/epics/synApps_6_3/support/LabJack-master/include   -I/opt/epics/synApps_6_3/support/measComp-master/include -I/opt/epics/base/include/compiler/gcc -I/opt/epics/base/include/os/Linux -I/opt/epics/base/include        -c ../labjackMain.cpp
/usr/bin/g++ -o labjack  -L/opt/epics/iocs/epics_iocs/soft_iocs/test/lib/linux-x86_64 -L/opt/epics/base/lib/linux-x86_64 -L/opt/epics/synApps_6_3/support/LabJack-master/lib/linux-x86_64 -L/opt/epics/synApps_6_3/support/asyn-R4-44-2/lib/linux-x86_64 -L/opt/epics/synApps_6_3/support/autosave-R5-11/lib/linux-x86_64 -L/opt/epics/synApps_6_3/support/busy-R1-7-4/lib/linux-x86_64 -L/opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64 -Wl,-rpath,/opt/epics/iocs/epics_iocs/soft_iocs/test/lib/linux-x86_64 -Wl,-rpath,/opt/epics/base/lib/linux-x86_64 -Wl,-rpath,/opt/epics/synApps_6_3/support/LabJack-master/lib/linux-x86_64 -Wl,-rpath,/opt/epics/synApps_6_3/support/asyn-R4-44-2/lib/linux-x86_64 -Wl,-rpath,/opt/epics/synApps_6_3/support/autosave-R5-11/lib/linux-x86_64 -Wl,-rpath,/opt/epics/synApps_6_3/support/busy-R1-7-4/lib/linux-x86_64 -Wl,-rpath,/opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64          -rdynamic -m64         labjack_registerRecordDeviceDriver.o labjackMain.o    -lLabJack -lbusy -lautosave -lasyn -lLabJackM -lmeasComp -ldbRecStd -ldbCore -lca -lCom  
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAOutScanStop'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAInScanStop'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulDaqInScan'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulDIn'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAISetConfigDbl'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulDaqInSetTrigger'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulTIn'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulDevGetConfigStr'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulCLoad'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAOutScanStatus'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulGetNetDaqDeviceDescriptor'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulGetDaqDeviceInventory'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulCIn'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulDaqInScanStop'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulReleaseDaqDevice'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAOGetInfo'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulCreateDaqDevice'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAInScan'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulDaqInScanStatus'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAInScanStatus'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulTmrPulseOutStop'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAIn'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAOutScan'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulDIOGetInfo'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulDConfigPort'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAOut'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulConnectDaqDevice'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulDBitOut'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulGetErrMsg'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulCClear'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulGetInfoStr'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulDOut'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAInLoadQueue'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulDConfigBit'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulCConfigScan'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulCInScanStop'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulTmrPulseOutStart'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAISetConfig'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulAIGetInfo'
/usr/bin/ld: /opt/epics/synApps_6_3/support/measComp-master/lib/linux-x86_64/libmeasComp.so: undefined reference to `ulCInScan'
collect2: error: ld returned 1 exit status
make[3]: *** [/opt/epics/base/configure/RULES_BUILD:231: labjack] Error 1
make[3]: Leaving directory '/opt/epics/iocs/epics_iocs/soft_iocs/test/labjackApp/src/O.linux-x86_64'
make[2]: *** [/opt/epics/base/configure/RULES_ARCHS:58: install.linux-x86_64] Error 2
make[2]: Leaving directory '/opt/epics/iocs/epics_iocs/soft_iocs/test/labjackApp/src'
make[1]: *** [/opt/epics/base/configure/RULES_DIRS:85: src.install] Error 2
make[1]: Leaving directory '/opt/epics/iocs/epics_iocs/soft_iocs/test/labjackApp'
make: *** [/opt/epics/base/configure/RULES_DIRS:85: labjackApp.install] Error 2

 

 

Here's the contents of my src/Makefile:

TOP=../..

include $(TOP)/configure/CONFIG
#----------------------------------------
#  ADD MACRO DEFINITIONS AFTER THIS LINE
#=============================

#=============================
# Build the IOC application

PROD_IOC = labjack
# labjack.dbd will be created and installed
DBD += labjack.dbd

# labjack.dbd will be made up from these files:
labjack_DBD += base.dbd

# Include dbd files from all support applications:
labjack_DBD += asyn.dbd
labjack_DBD += busySupport.dbd
labjack_DBD += asSupport.dbd
labjack_DBD += LabJackSupport.dbd
labjack_DBD += measCompSupport.dbd

# Add all the support libraries needed by this IOC
labjack_LIBS += LabJack
labjack_LIBS += busy
labjack_LIBS += autosave
labjack_LIBS += asyn
labjack_LIBS += LabJackM
labjack_LIBS += measComp

# labjack_registerRecordDeviceDriver.cpp derives from labjack.dbd
labjack_SRCS += labjack_registerRecordDeviceDriver.cpp

# Build the main IOC entry point on workstation OSs.
labjack_SRCS_DEFAULT += labjackMain.cpp

# Add support from base/src/vxWorks if needed
#labjack_OBJS_vxWorks += $(EPICS_BASE_BIN)/vxComLibrary

# Finally link to the EPICS Base libraries
labjack_LIBS += $(EPICS_BASE_IOC_LIBS)

#===========================

include $(TOP)/configure/RULES
#----------------------------------------
#  ADD RULES AFTER THIS LINE

 

In case it helps, I'm attempting to build this on Debian 12, and I did install the libuldaq-1.2.1 vendor drivers as instructed.

 

If anyone has insight into what's going wrong that would be great. The IOC builds fine if I remove the measComp DBD and LIBS in the Makefile, but otherwise gives the above errors.

All the best.

- Jesse

 

----
Jesse Hopkins, PhD
Deputy Director
BioCAT, Sector 18
Advanced Photon Source