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Operating Systems AIX Unable to run a simple threaded program on AIX
# 1  
Old 06-07-2010
Unable to run a simple threaded program on AIX
Hi,
I am unable to run a simple C++ threaded program on the AIX 5.3 platform. It says
Code:
exec(): 0509-036 Cannot load program ./sendClient because of the following errors: 
rtld: 0712-001 Symbol __pthread was referenced
      from module sendClient(), but a runtime definition
      of the symbol was not found.

We are trying to run this executable built using xlC. It is built on an AIX 5.3 machine and is being tried to run on another AIX 5.3 machine. It works smoothly on the machine where it is built but not on the target machine. But I need to run on the target AIX 5.3 box. Below are some useful information on the box where it is built and works OK.
Code:
$> oslevel -s
5300-07-06-0844
$> lslpp -l | grep -i "Compiler"
  vac.C                      8.0.0.0  COMMITTED  IBM XL C Compiler
  vac.aix50.lib              8.0.0.0  COMMITTED  IBM XL C Compiler Libraries
  vac.html.common.search     8.0.0.0  COMMITTED  IBM XL C Compiler
  vac.html.en_US.C           8.0.0.0  COMMITTED  IBM XL C Compiler
  vac.include                8.0.0.0  COMMITTED  IBM XL C Compiler Include
  vac.lib                    8.0.0.0  COMMITTED  IBM XL C Compiler Libraries
  vac.man.en_US              8.0.0.0  COMMITTED  IBM XL C Compiler Man
  vac.msg.en_US.C            8.0.0.0  COMMITTED  IBM XL C Compiler Messages -
  vacpp.cmp.core             8.0.0.0  COMMITTED  IBM XL C/C++ Compiler
  vacpp.cmp.include          8.0.0.0  COMMITTED  IBM XL C/C++ Compiler Include
  vacpp.cmp.rte              8.0.0.0  COMMITTED  IBM XL C/C++ Compiler
  vacpp.man.en_US            8.0.0.0  COMMITTED  IBM XL C/C++ Compiler Man
  vacpp.msg.en_US.cmp.core   8.0.0.0  COMMITTED  IBM XL C/C++ Compiler
  vacpp.samples.ansicl       8.0.0.0  COMMITTED  IBM XL C/C++ Compiler ANSI
  xlhelp.com                 3.0.1.0  COMMITTED  XL Compiler Information Center
  xlhelp.html.en_US          3.0.1.0  COMMITTED  XL Compiler Common
  vac.C                      8.0.0.0  COMMITTED  IBM XL C Compiler
  vacpp.cmp.core             8.0.0.0  COMMITTED  IBM XL C/C++ Compiler
$>  ldd sendClient
sendClient needs:
         /opt/OMMS/BES/lib/liborb_pr.a
         /opt/OMMS/BES/lib/libvdlog_pr.a
         /opt/OMMS/BES/lib/libvport_pr.a
         /opt/OMMS/BES/lib/liblmgr.a
         /opt/OMMS/BES/lib/libcosnm_pr.a
         /usr/vacpp/lib/libC.a(shr.o)
         /usr/vacpp/lib/libC.a(ansi_32.o)
Cannot find      /usr/lib/libpthreads.a(shr_comm.o)
         /usr/lib/libpthreads.a(shr_xpg5.o)
         /usr/lib/libc.a(shr.o)
         /usr/lib/librtl.a(shr.o)
         /usr/vacpp/lib/libC.a(shr2.o)
         /usr/lib/libpthread.a(shr_comm.o)
         /usr/lib/libpthread.a(shr_xpg5.o)
         /usr/lib/libc_r.a(shr.o)
         /usr/vacpp/lib/libC.a(ansicore_32.o)
         /usr/vacpp/lib/libC.a(shrcore.o)
         /usr/vacpp/lib/libC.a(shr3.o)
         /unix
         /usr/lib/libcrypt.a(shr.o)
$>

All these libraries are available in the build system where it works. I am just unable to make out any solution and it has hit a major roadblock. May I please request your guidance to resolve this issue ?

Many thanks
Asutosh
Last edited by pludi; 06-07-2010 at 07:59 AM.. Reason: code tags, please...
# 2  
Old 06-07-2010
Your problem might stem from different sources:

- maybe your environment is wrong. What is
Code:
echo $LD_LIBRARY_PATH

showing?

-maybe the necessary library is not installed. What is the output of
Code:
lslpp -h bos.rte.lipthreads

I hope this helps.

bakunin
# 3  
Old 06-08-2010
Thank you for your reply. Below are the outputs you asked for. The results below are shown for the build system where it works very fine.
Code:
/home/ciimsmig: echo $LD_LIBRARY_PATH

/home/ciimsmig: 
/home/ciimsmig: lslpp -h bos.rte.lipthreads
lslpp: 0504-132  Fileset bos.rte.lipthreads not installed.
/home/ciimsmig:

# 4  
Old 06-09-2010
You have to install the fileset "bos.rte.lipthreads", because it contains the library you are missing. As this is a shared library you have to have it installed on the system you use to compile the software as well as the system(s) you want your software to run at.

If you need to set the environment variable i mentioned is not sure yet. install the package first and try to run your software. Most likely this will cure your problem anyway.

If you need help for installing packages under AIX refer to the man page of "installp" or "geninstall" respectively.

I hope this helps.

bakunin
# 5  
Old 06-10-2010
Thank you very much. Please let that be installed on the target system. I will report the findings.
# 6  
Old 06-15-2010
Hi,
I got all the relevant information needed. First of all there was a typo error in the string we were looking at. That's why it was not showing. It is libpthreads and NOT lipthreads. Am I right ? With that, I get the following -
-----------BUILD system -------------------
$ lslpp -h bos.rte.libpthreads
Fileset Level Action Status Date Time
----------------------------------------------------------------------------
Path: /usr/lib/objrepos
bos.rte.libpthreads
5.3.0.0 COMMIT COMPLETE 09/15/08 14:59:13
5.3.0.40 COMMIT COMPLETE 09/19/08 20:01:28
5.3.0.51 COMMIT COMPLETE 02/02/10 16:48:15
5.3.0.64 COMMIT COMPLETE 02/02/10 18:39:54
5.3.7.3 APPLY COMPLETE 02/02/10 20:30:45
$

----------- TARGET SYSTEM ---------------
$ lslpp -h bos.rte.libpthreads
Fileset Level Action Status Date Time
----------------------------------------------------------------------------
Path: /usr/lib/objrepos
bos.rte.libpthreads
5.3.0.50 COMMIT COMPLETE 05/18/10 10:41:05


Will you please help in finding the root cause ? Thank you.
# 7  
Old 07-01-2010
Can someone help me out now ?
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