Internal change.

PiperOrigin-RevId: 790622246

Author: gvisor-bot

pkg/sync/BUILD

@@ -31,6 +31,7 @@ go_library(
         "runtime_exectracer2.go",
         "runtime_go121_unsafe.go",
         "runtime_go124_unsafe.go",
+        "runtime_go126_unsafe.go",
         "runtime_not_go121_unsafe.go",
         "runtime_other.go",
         "runtime_spinning_amd64.s",

pkg/sync/runtime_go124_unsafe.go

@@ -3,7 +3,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build go1.24
+// https://go.dev/cl/691596 (1.26) renames the internal map type which nogo relies on.
+//go:build go1.24 && !go1.26
 
 package sync
 

pkg/sync/runtime_go126_unsafe.go

@@ -0,0 +1,15 @@
+// Copyright 2024 The gVisor Authors.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// https://go.dev/cl/691596 (1.26) renames the internal map type which nogo relies on.
+//go:build go1.26
+
+package sync
+
+import "unsafe"
+
+// Use checkoffset to assert that maptype.hasher (the only field we use) has
+// the correct offset.
+const maptypeHasherOffset = unsafe.Offsetof(maptype{}.Hasher) // +checkoffset internal/abi MapType.Hasher