gcov and C++'s global destructors

[Sven C. Koehler]

Hello all!

I am trying to use gcov in conjunction with unit testing to find out
which lines of code were not yet covered by the tests.  Alas, I found out 
that those lines that were called by destructors of global variables
were assumed to be not executed at all.  Example code is appended.

My GCC version is: gcc version 2.95.3 20010315 (SuSE) on Intel.

Does someone know how to make this work?  I didn't find something in the
documentation or mailing list archives concerning this issue.

TIA & Best Regards,

Sven C. Koehler

Example Code:

[test.cpp]
#include <iostream>
class TestClass {
public:
    TestClass() { std::cout << "ctor" << std::endl; }

    ~TestClass() { std::cout << "dtor" << std::endl; }
};
TestClass test;
int main(int argc, const char* argv[]) {
    std::cout << "in main()" << std::endl;
}

Compile:
%g++ -O0 -ftest-coverage -fprofile-arcs -o test test.cpp

Execution yields:
%./test
ctor
in main()
dtor

Invoking gcov:
%gcov test.cpp
80.00% of 5 source lines executed in file test.cpp

Showing lines that were not executed:
%grep '######' test.cpp.gcov    
######        ~TestClass() { std::cout << "dtor" << std::endl; }

-> Which is wrong as we can see from the output of the execution.