go/src/runtime/vgetrandom_linux.go

//go:noescape
func vgetrandom1(buf *byte, length uintptr, flags uint32, state uintptr, stateSize uintptr) int

var vgetrandomAlloc …

func vgetrandomInit() { … }

func vgetrandomGetState() uintptr { … }

func vgetrandomPutState(state uintptr) { … }

// This is exported for use in internal/syscall/unix as well as x/sys/unix.
//
//go:linkname vgetrandom
func vgetrandom(p []byte, flags uint32) (ret int, supported bool) { … }