.rootmap file

ROOT
1

Hi,

    I am trying to load my analysis shared object ("Analysis.so") in root session to run Loop() method. But it shows the following error:

root [0] .L Analysis.so
root [1] Analysis t
/scratch0/ROOT/root_5.22/root/bin/root.exe: symbol lookup error: /home/sushil/PhotoIDEfficiency/./Analysis.so: undefined symbol: _ZN6TChainC1EPKcS1

         Then i created a Analysis.rootmap file with following lines in it:

Library.Analysis: libRIO.so
Library.Analysis: libTree.so

         and then tried again to load my .so. But I get the same error:

However if in root session I do:
gSystem->Load(“libRIO.so”);
gSystem->Load(“libTree.so”);
.L Analysis.so;
Analysis t;
t.Loop();

   Then it works fine.

Could someone suggest whats wrong with the above methods. I am using ROOTV5.22.

Thanks and with best regards,
sushil

2

If your Analysis.so file references TChain, you must load libTree before loading this library.

Rene

3

Hi,

The rootmap file should contains:Library.Analysis: libTree.so libRIO.so

Cheers,
Philippe.

4

Hi,

I tried as you suggested by keeping the line in .rootmap file. But it still gives the same error.

If you would like to see my files then they are here:

schauhan.web.cern.ch/schauhan/B … fficiency/

PS: to be more precise I have used root source code root_v5.22.00d.source.tar.gz to install root.

With best regards,
sushil

5

Hi,

Any possible solution for the above problem??

Thanks and with best regards,
sushil

6

Hi,
for the .rootmap file to be used by ROOT it must be in a directory that’s part of $LD_LIBRARY_PATH (or %PATH% on windows). And the correct syntax is “Library.CLASSNAME: libraryContainingCLASSNAME dependentLibraries”, so in your case “Library.Analysis: Analysis.so libTree.so libRIO.so”

Cheers, Axel.

7

Hi,

My LD_LIBRARY_PATH is:
/scratch0/ROOT/root_5.22/root/lib/

MY working directory is(also has Analysis.rootmap file):
/scratch0/PhotoIDEfficiency

I have also added the line Analysis.so before libTree.so and libRIO.so and Analysis.rootmap look like:
Library.Analysis: Analysis.so libTree.so libRIO.so

But I get same problem!!!

[sushil-laptop@PhotoIDEfficiency] root -l
root [0] .L Analysis.so
root [1] Analysis t
/scratch0/ROOT/root_5.22/root/bin/root.exe: symbol lookup error: /scratch0/PhotoIDEfficiency/./Analysis.so: undefined symbol: ZN6TChainC1EPKcS1

Thanks and with best regards,
sushil

8

Hi,

Try loading the library viagSystem->Load("Analisys.so");

Cheers,
Philippe.

9

I tried this one also. Below is the steps I followed.

[sushil-laptop@PhotonIDAnalysis] make
Making Analysisdict.C Analysisdict.h
rm -f Analysisdict.C Analysisdict.h
rootcint Analysisdict.C -c -I/home/sushil/ROOT/root_5.22/root/include Analysis.h
Compiling Analysis.C
g++ -o Analysis.so -O -Wall -fPIC -shared -I/home/sushil/ROOT/root_5.22/root/include Analysisdict.C Analysis.C
[sushil-laptop@PhotonIDAnalysis] rot -l
rot: Command not found.
[sushil-laptop@PhotonIDAnalysis] root -l
root [0] gSystem->Load(“libRIO.so”);
root [1] gSystem->Load(“libTree.so”);
root [2] gSystem->Load(“Analysis.so”);
root [3] Analysis t;
root [4] t.Loop();
/home/sushil/ROOT/root_5.22/root/bin/root.exe: symbol lookup error: /home/sushil/PhotoIDEfficiency/PhotonIDAnalysis/./Analysis.so: undefined symbol: _ZN4TH1FC1EPKcS1_idd

[sushil-laptop@PhotonIDAnalysis] c++filt _ZN4TH1FC1EPKcS1_idd
TH1F::TH1F(char const*, char const*, int, double, double)
[sushil-laptop@PhotonIDAnalysis]

c++filt says that something wrong with TH1F in my class but could not able to find what exactly it could be.

PS: If anyone interested to see my code(its a small code) than its here:
schauhan.web.cern.ch/schauhan/BSM/RootError/

Thanks and with best regards,
sushil

10

okay, loading libHist.so solves the problem.

With best regards,
sushil