From 80e6ddab5b6b834f2d6fa7f2078e697ea58cdbf9 Mon Sep 17 00:00:00 2001
From: deraadt <deraadt@openbsd.org>
Date: Sun, 11 Feb 2018 04:09:19 +0000
Subject: [PATCH] Add MAP_STACK flag.  Currently masked by mmap()

---
 sys/sys/mman.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sys/sys/mman.h b/sys/sys/mman.h
index 1e7884cc2ee..e4d96a1690a 100644
--- a/sys/sys/mman.h
+++ b/sys/sys/mman.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mman.h,v 1.29 2016/06/01 04:53:54 guenther Exp $	*/
+/*	$OpenBSD: mman.h,v 1.30 2018/02/11 04:09:19 deraadt Exp $	*/
 /*	$NetBSD: mman.h,v 1.11 1995/03/26 20:24:23 jtc Exp $	*/
 
 /*-
@@ -59,8 +59,9 @@
 #define	MAP_ANON	0x1000	/* allocated from memory, swap space */
 #define	MAP_ANONYMOUS	MAP_ANON	/* alternate POSIX spelling */
 #define	__MAP_NOFAULT	0x2000
+#define	MAP_STACK	0x4000
 
-#define	MAP_FLAGMASK	0x3ff7
+#define	MAP_FLAGMASK	0x7ff7
 
 #ifndef _KERNEL
 /*
-- 
2.20.1