diff --git a/unix/syscall_linux_gccgo.go b/unix/syscall_linux_gccgo.go
new file mode 100644
index 00000000..df9c1237
--- /dev/null
+++ b/unix/syscall_linux_gccgo.go
@@ -0,0 +1,21 @@
+// Copyright 2018 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 linux
+// +build gccgo
+// +build 386 arm
+
+package unix
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+func seek(fd int, offset int64, whence int) (newoffset int64, err syscall.Errno) {
+	offsetLow := uint32(offset & 0xffffffff)
+	offsetHigh := uint32((offset >> 32) & 0xffffffff)
+	_, _, err = Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offsetHigh), uintptr(offsetLow), uintptr(unsafe.Pointer(&newoffset)), uintptr(whence), 0)
+	return newoffset, err
+}