1: #include <dlfcn.h>
    2: #include <stdio.h>
    3: 
    4: 
    5: extern void constr (void) __attribute__ ((__constructor__));
    6: void
    7: __attribute__ ((__constructor__))
    8: constr (void)
    9: {
   10:   void *handle;
   11:   void *m;
   12: 
   13:   /* Open the library.  */
   14:   handle = dlopen (NULL, RTLD_NOW);
   15:   if (handle == NULL)
   16:     {
   17:       puts ("Cannot get handle to own object");
   18:       return;
   19:     }
   20: 
   21:   /* Get a symbol.  */
   22:   m = dlsym (handle, "main");
   23:   puts ("called dlsym() to get main");
   24: 
   25:   dlclose (handle);
   26: }