Experimental Physics and
Industrial Control System

Hi,

For the production DAQ software, we only compile zlib for linux-arm architecture. For RHEL6 and RHEL7 we use zlib and libxml from ADSupport.

Sinisa

bluegill2> ls -ltr /net/helios/ctlsdaq1/support-7.0-rhel7/opt/epics/modules/areaDetector-3-2/ADSupport/lib/linux-x86_64/
total 19768
-r-xr-xr-x 1 ctlsdaq ctlsdaq   318392 Jul 30 11:37 libzlib.so
-r--r--r-- 1 ctlsdaq ctlsdaq   461134 Jul 30 11:37 libzlib.a
-r-xr-xr-x 1 ctlsdaq ctlsdaq  6955584 Jul 30 11:38 libxml2.so
-r--r--r-- 1 ctlsdaq ctlsdaq 12405952 Jul 30 11:38 libxml2.a

bluegill2> ls -ltr /net/helios/ctlsdaq1/support-7.0-rhel6/opt/epics/modules/areaDetector-3-2/ADSupport/lib/linux-x86_64/
total 13948
-r-xr-xr-x 1 ctlsdaq ctlsdaq  259335 Jul 27 17:29 libzlib.so
-r--r--r-- 1 ctlsdaq ctlsdaq  389926 Jul 27 17:29 libzlib.a
-r-xr-xr-x 1 ctlsdaq ctlsdaq 4970081 Jul 27 17:31 libxml2.so
-r--r--r-- 1 ctlsdaq ctlsdaq 8581480 Jul 27 17:31 libxml2.a
bluegill2>

There should be no difference of RHEL6 and RHEL7 for this.  I suspect that on RHEL7 ADSupport is being found and that contain libzlib.so and somehow that is missing on RHEL6.

 

Mark

 

 

From: Madden, Timothy J. <[email protected]>
Sent: Friday, December 7, 2018 5:40 PM
To: Mark Rivers <[email protected]>
Cc: [email protected]
Subject: Re: AD R3-2 libzlib.so

 

 

 

I am not sure. All his stuff works fine on rhel7. I am doing rhel6 for now. Sinisa has to build stuff manually rhel6.

He is gone for another week, and I will bug him then. Also I will soon move to rhel7 and avoid this problem.

 

T

 

---

From: Mark Rivers <[email protected]>
Sent: Friday, December 7, 2018 5:37:45 PM
To: Madden, Timothy J.
Cc: [email protected]
Subject: Re: AD R3-2 libzlib.so

 

How could this be working for Sinesa or anyone else?

Sent from my iPhone

On Dec 7, 2018, at 5:34 PM, Madden, Timothy J. <[email protected]<mailto:[email protected]>> wrote:


I am using AD in Sinisa Viseli's DAQ distro. He compiles libz and calls it just z,  in the Linux tradition.

I did a major kludge by this:

cd /usr/lib64

ln -s libz.so libzlib.so


It is nasty, but it will work for now. We just want to run some software on a uTCA crate to take some RF measurements.

We are not even using the plugins that need compression.


T



________________________________
From: Mark Rivers <[email protected]<mailto:[email protected]>>
Sent: Friday, December 7, 2018 11:35:40 AM
To: Madden, Timothy J.; [email protected]<mailto:[email protected]>
Subject: RE: AD R3-2 libzlib.so


How have you defined HAVE_ZLIB and ZLIB_EXTERNAL in areaDetector/configure/CONFIG_SITE.local?  If you define HAVE_ZLIB and ZLIB_EXTERNAL=NO it will build and use the version in ADSupport. That is what I recommend.



I think there may be a problem if you set ZLIB_EXTERNAL=YES because the library in ADSupport is called libzlib.so, but the OS version is called libz.so.  We could fix that in the future, but for now just use the version in ADSupport.



Mark





From: Madden, Timothy J. <[email protected]<mailto:[email protected]>>
Sent: Friday, December 7, 2018 10:44 AM
To: [email protected]<mailto:[email protected]>
Cc: Mark Rivers <[email protected]<mailto:[email protected]>>
Subject: AD R3-2 libzlib.so



Mark



I am having a link problem with AD. My exe is looking for libzlib.so



I know of libz.so, and have it installed, but I don't know what libzlib.so is. I am using Linux rhel6.





ldd of my exe

gives:



......

        libz.so.1 => /lib64/libz.so.1 (0x000000343c800000)
        libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x0000003bc2600000)
        libm.so.6 => /lib64/libm.so.6 (0x000000343b800000)
44c400000)



... ...


        libxml2.so => /usr/lib64/libxml2.so (0x0000003442800000)
        libzlib.so => not found
        liblzma.so => /net/phoebus/ctlsdaq/CTLSDAQ/support-7.0-rhel6/opt/epics-7.0.1.1/extensions/lib/linux-x86_64/liblzma.so (0x00007f5951799000)



---

---



Tim





PS



See:



 https://epics.anl.gov/tech-talk/2018/msg02162.php

-- 
Siniša Veseli
Scientific Software Engineering & Data Management
Advanced Photon Source
Argonne National Laboratory
[email protected]
(630)252-9182