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-rw-r--r--src/sync/runtime2.go19
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diff --git a/src/sync/runtime2.go b/src/sync/runtime2.go
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+// Copyright 2020 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 !goexperiment.staticlockranking
+
+package sync
+
+import "unsafe"
+
+// Approximation of notifyList in runtime/sema.go. Size and alignment must
+// agree.
+type notifyList struct {
+ wait uint32
+ notify uint32
+ lock uintptr // key field of the mutex
+ head unsafe.Pointer
+ tail unsafe.Pointer
+}