[omniORB] OmniORB or libtool problem with MacOSX ?

[Eddy Caron]

Dear omniorb users,

	If you have the same kind of problem, I have the solution. If you  
add the C++ option flat_namespace the compilation is done.

Eddy

Le 22 janv. 06 à 15:46, Eddy Caron a écrit :

> 	 omniorb users,
>
> 	I'm not sure if it's an omniORB problem or not. But I'm totally in  
> the dark. Maybe you can help me. I compile a software using omniORB  
> on Linux and on MacOSX. Everything is done on Linux. On MacOSX with  
> Xcode 2.1 and the last version of omniORB from the CVS the  
> compilation is done too. The problem appear when I try tyo run it.
>
> When I try to launch the binary
>
> aspen:~/soft/diet/lib ecaron$ ../bin/dietAgent dyld: Symbol not  
> found: __ZTv0_n40_N17_impl_MasterAgent9_dispatchER14omniCallHandle
>   Referenced from: /Users/ecaron/soft/diet//lib/libAgentCommon.0.dylib
>   Expected in: flat namespace
>
> Trace/BPT trap
>
> My LD_LIBRARY_PATH is correct. Then with nm I checked this missing  
> symbol.
>
> In fact this virtual symbol is not defined with Linux or MacOSX.
>
> libDIET_client.dylib:libDIET_client.0.0.0.dylib-master.o: 00046cf4  
> T __ZN17_impl_MasterAgent9_dispatchER14omniCallHandle
> libDIET_client.dylib:libDIET_client.0.0.0.dylib-master.o: 00062bf4  
> S __ZN17_impl_MasterAgent9_dispatchER14omniCallHandle.eh
> libDIET_client.dylib:libDIET_client.0.0.0.dylib-master.o: 0005558c  
> S __ZTv0_n40_N17_impl_MasterAgent9_dispatchER14omniCallHandle
> libDIET_client.dylib:libDIET_client.0.0.0.dylib-master.o: 00062bc4  
> S __ZTv0_n40_N17_impl_MasterAgent9_dispatchER14omniCallHandle.eh
> libDIET_client.dylib:libDIET_client.0.0.0.dylib-master.o: 0005559c  
> S __ZTv0_n44_N17_impl_MasterAgent9_dispatchER14omniCallHandle
> libDIET_client.dylib:libDIET_client.0.0.0.dylib-master.o: 00062bdc  
> S __ZTv0_n44_N17_impl_MasterAgent9_dispatchER14omniCallHandle.eh
>
> and for Linux  :
>
> libDIET_client.so:000000000007a680 T  
> _ZN17_impl_MasterAgent9_dispatchER14omniCallHandle
> libDIET_client.so:000000000007bcd0 W  
> _ZTv0_n80_N17_impl_MasterAgent9_dispatchER14omniCallHandle
> libDIET_client.so:000000000007bce0 W  
> _ZTv0_n88_N17_impl_MasterAgent9_dispatchER14omniCallHandle
>
> I don't understand why it's a "W" with Linux and "S" with MacOSX  
> but I'm not sure that is the reason of the running problem.
>
> Remember :
>            "W" The  symbol  is  a  weak  symbol that has not been  
> specifically
>                tagged as a weak object symbol.  When a weak defined  
> symbol  is
>                linked  with a normal defined symbol, the normal  
> defined symbol
>                is used with no error.  When a weak undefined symbol  
> is  linked
>                and  the  symbol  is  not defined, the value of the  
> weak symbol
>                becomes zero with no error.
>
>    "S" The symbol is  in  an  uninitialized  data  section  for   
> small objects.
>
>
> In fact the real symbol corresponding to the function is  
> _ZN17_impl_MasterAgent9_dispatchER14omniCallHandle and is define on  
> both OS.
> The virtual symbol is   
> ZTv0_n80_N17_impl_MasterAgent9_dispatchER14omniCallHandle with  
> MacOSX  ("S") or  
> __ZTv0_n44_N17_impl_MasterAgent9_dispatchER14omniCallHandle with  
> Linux ("W").
>
> But why the execution failed only on MacOSX  with the  "Expected  
> in: flat namespace" error ?
>
> Do you have any idea about this problem ? I have spent a long time  
> to find an answer on many website but without success.
>
> Best regards,
> Eddy
> ---------------------------------------------------------------------- 
> ------------------------
> Eddy Caron. Mcf ENS Lyon
> ENS Lyon - LIP - Projet GRAAL
> 46 Allee d'Italie, 69364 Lyon Cedex 07, France
> E-Mail : Eddy.Caron at ens-lyon.fr
> [ Tel : 04.72.72.84.96 ][ Web page : http://graal.ens-lyon.fr/ 
> ~ecaron ]
> ---------------------------------------------------------------------- 
> --------------------------
>
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------------------------------------------------------------------------ 
----------------------
Eddy Caron. Mcf ENS Lyon
ENS Lyon - LIP - Projet GRAAL
46 Allee d'Italie, 69364 Lyon Cedex 07, France
E-Mail : Eddy.Caron at ens-lyon.fr
[ Tel : 04.72.72.84.96 ][ Web page : http://graal.ens-lyon.fr/~ecaron ]
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