curbrk = (int)&end;
__crt0_real_start(int argc, char *argv[], char *envp[]){	register char *ap;	volatile int a = 0;	extern int minbrk asm ("minbrk");	extern int end;	minbrk = (int)&end;	environ = envp; /* environ is for the user that can't get at 'envp' */	if (ap = argv[0])		if ((__progname = _strrchr(ap, '/')) == NULL)			__progname = ap;		else			++__progname;asm ("__callmain:");		/* Defined for the benefit of debuggers */	exit(main(argc, argv, environ));    /*NOTREACHED*/}