Index: src/runtime/os_openbsd_syscall1.go
--- src/runtime/os_openbsd_syscall1.go.orig
+++ src/runtime/os_openbsd_syscall1.go
@@ -1,20 +0,0 @@
-// Copyright 2011 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.
-
-//go:build openbsd && mips64
-
-package runtime
-
-//go:noescape
-func thrsleep(ident uintptr, clock_id int32, tsp *timespec, lock uintptr, abort *uint32) int32
-
-//go:noescape
-func thrwakeup(ident uintptr, n int32) int32
-
-func osyield()
-
-//go:nosplit
-func osyield_no_g() {
-	osyield()
-}
