const golang.org/x/sys/unix.SIGKILL

2 uses

	golang.org/x/sys/unix (current package)
		syscall_bsd.go#L107: func (w WaitStatus) Killed() bool { return w&mask == killed && syscall.Signal(w>>shift) != SIGKILL }
		zerrors_darwin_arm64.go#L1612: 	SIGKILL   = syscall.Signal(0x9)