1 files changed, 35 insertions, 0 deletions
diff --git a/tools/checklocks/test/anon.go b/tools/checklocks/test/anon.go
new file mode 100644
index 000000000..a1f6bddda
--- /dev/null
+++ b/tools/checklocks/test/anon.go
@@ -0,0 +1,35 @@
+// Copyright 2021 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package test
+
+import "sync"
+
+type anonStruct struct {
+	anon struct {
+		mu sync.RWMutex
+		// +checklocks:mu
+		x int
+	}
+}
+
+func testAnonAccessValid(tc *anonStruct) {
+	tc.anon.mu.Lock()
+	tc.anon.x = 1
+	tc.anon.mu.Unlock()
+}
+
+func testAnonAccessInvalid(tc *anonStruct) {
+	tc.anon.x = 1 // +checklocksfail
+}