1  extern void _start (void);
       2  
       3  /* Lives in libgcc.so and canonicalizes function pointers for comparison.  */
       4  extern unsigned int __canonicalize_funcptr_for_compare (unsigned int fptr);
       5  
       6  /* The function's entry point is stored in the first word of the
       7     function descriptor (plabel) of _start().  */
       8  #define ENTRY_POINT __canonicalize_funcptr_for_compare((unsigned int)_start)