Re: "this" pointer get corrupted after function call

Hi all,
  well this is pretty much confusion to me as well, but here is
scenario. I have two shared objects file and one loader executable.
  loader calls extern function in shared1 , which has one class ,
initialize it and run its method , which would call extern in shared2.
  after shared2 extern function returns, the "this" pointer get 0x00 in
A::Run(),
  any guess what would have been happened, I have using gcc version 4+
to build the project.

** loader.cpp
      - calls run_test(); in shared1.cpp

** shared1.cpp
        class A {
            public:
                 Run() { mum_tum(); doWell(); }
                 doWell() { }
        };

        extern void run_test() {
                A *a = new A();
                a->Run();
        }

** shared2.cpp
       extern void mum_tum() { }

thank you.