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External variables in shared library constructor code
- From: smokyboy <smokyboy0 at lycos dot com>
- To: gcc-help at gcc dot gnu dot org
- Date: Wed, 13 Aug 2008 23:37:27 -0700 (PDT)
- Subject: External variables in shared library constructor code
Hi,
I have a problem using external variables in the constructor code of my
shared library. The constructor code is an init() function labeled by gcc
__attribute__((constructor)). In that function I make a reference to an
extern variable X provided by the driving app. The problem is that X is not
yet initialized at the moment init() is invoked, which is before main() is
entered.
A solution might be to introduce a init flag and move the initialization
code to some other exported function, but this is not really elegant. I will
appreciate any alternative suggestion.
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