if ns == 0 {
		return scratch
	}
	return ns
}

var goexits = []byte("go: exit ")
var emptystatus = []byte("\x00")
var exiting uint32

func goexitsall(status *byte) {
	var buf [_ERRMAX]byte
	if !atomic.Cas(&exiting, 0, 1) {
		return
	}
	getg().m.locks++
	n := copy(buf[:], goexits)
	n = copy(buf[n:], gostringnocopy(status))
	pid := getpid()

	if level > 0 {
		goroutineheader(gp)
		tracebacktrap(c.pc(), c.sp(), c.lr(), gp)
		tracebackothers(gp)
		print("\n")
		dumpregs(_ureg)
	}
	if docrash {
		crash()
	}
Exit:
	goexitsall(note)
	exits(note)
	return _NDFLT // not reached
}

func sigenable(sig uint32) {
}

func sigdisable(sig uint32) {
}

func sigignore(sig uint32) {
}