1 files changed, 19 insertions, 0 deletions
diff --git a/src/runtime/export_futex_test.go b/src/runtime/export_futex_test.go
new file mode 100644
index 0000000..a727a93
--- /dev/null
+++ b/src/runtime/export_futex_test.go
@@ -0,0 +1,19 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build dragonfly freebsd linux
+
+package runtime
+
+var Futexwakeup = futexwakeup
+
+//go:nosplit
+func Futexsleep(addr *uint32, val uint32, ns int64) {
+	// Temporarily disable preemption so that a preemption signal
+	// doesn't interrupt the system call.
+	poff := debug.asyncpreemptoff
+	debug.asyncpreemptoff = 1
+	futexsleep(addr, val, ns)
+	debug.asyncpreemptoff = poff
+}