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As we know, linux call ldconfig to load all *.so libraries and then link the applications who use the shared library. However, I am confused how the global variable is working in this case. Since there is only one copy of shared library across all these application, do they share the global variables in the shared library? If yes, then how they synchronize?
Thanks,
No it is not shared – the code/text section of the library is shared – the data portion is unique to each process that uses the library