diff --git a/vendor/github.com/coreos/etcd/pkg/osutil/signal_linux.go b/vendor/github.com/coreos/etcd/pkg/osutil/signal_linux.go
new file mode 100644
index 0000000..b94d80c
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/pkg/osutil/signal_linux.go
@@ -0,0 +1,30 @@
+// Copyright 2017 The etcd 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.
+
+// +build linux,!cov
+
+package osutil
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+// dflSignal sets the given signal to SIG_DFL
+func dflSignal(sig syscall.Signal) {
+	// clearing out the sigact sets the signal to SIG_DFL
+	var sigactBuf [32]uint64
+	ptr := unsafe.Pointer(&sigactBuf)
+	syscall.Syscall6(uintptr(syscall.SYS_RT_SIGACTION), uintptr(sig), uintptr(ptr), 0, 8, 0, 0)
+}