func golang.org/x/sys/unix.syscall_syscall9

one use

	golang.org/x/sys/unix (current package)
		syscall_darwin_libSystem.go#L15: func syscall_syscall9(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno) // 32-bit only