From e147a9138326bc0e9d4e179541ffd8af41cff8a9 Mon Sep 17 00:00:00 2001
From: Joel Sing <joel@sing.id.au>
Date: Sun, 16 Dec 2018 01:29:05 +1100
Subject: [PATCH] internal/socket: use correct cmsg alignment for openbsd/arm

The OpenBSD armv7 port requires 64-bit alignment for cmsgs.

Change-Id: Ibb1c5dc32c9e0851d0ee23b4ebdb316d7ed79629
Reviewed-on: https://go-review.googlesource.com/c/154397
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
---
 internal/socket/sys_bsdvar.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/internal/socket/sys_bsdvar.go b/internal/socket/sys_bsdvar.go
index f723fa36a..164ddfce8 100644
--- a/internal/socket/sys_bsdvar.go
+++ b/internal/socket/sys_bsdvar.go
@@ -6,9 +6,15 @@
 
 package socket
 
-import "unsafe"
+import (
+	"runtime"
+	"unsafe"
+)
 
 func probeProtocolStack() int {
+	if runtime.GOOS == "openbsd" && runtime.GOARCH == "arm" {
+		return 8
+	}
 	var p uintptr
 	return int(unsafe.Sizeof(p))
 }