backtrace_to_location_ary  638 vm_backtrace.c 	bt->locary = backtrace_to_location_ary(self, 0, 0);
backtrace_to_location_ary  668 vm_backtrace.c     return backtrace_to_location_ary(backtrace_object(th), lev, n);
backtrace_to_location_ary  882 vm_backtrace.c 	r = backtrace_to_location_ary(btval, lev, n);