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) 9