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.