From a9332ccecfce63bf54924e70c11f420edd3ae312 Mon Sep 17 00:00:00 2001
From: Brent Cook <bcook@openbsd.org>
Date: Sun, 17 Jul 2016 18:12:23 -0500
Subject: [PATCH] avoid BSWAP assembly for ARM <= v6

---
 patches/modes_lcl.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 patches/modes_lcl.h

diff --git a/patches/modes_lcl.h b/patches/modes_lcl.h
new file mode 100644
index 0000000..1ba9f2e
--- /dev/null
+++ b/patches/modes_lcl.h
@@ -0,0 +1,21 @@
+--- openbsd/src/lib/libssl/src/crypto/modes/modes_lcl.h	Sat Dec  6 17:15:50 2014
++++ crypto/modes/modes_lcl.h	Sun Jul 17 17:45:27 2016
+@@ -43,14 +43,16 @@
+ 			asm ("bswapl %0"		\
+ 			: "+r"(ret));	ret;		})
+ # elif (defined(__arm__) || defined(__arm)) && !defined(__STRICT_ALIGNMENT)
+-#  define BSWAP8(x) ({	u32 lo=(u64)(x)>>32,hi=(x);	\
++#  if (__ARM_ARCH >= 6)
++#   define BSWAP8(x) ({	u32 lo=(u64)(x)>>32,hi=(x);	\
+ 			asm ("rev %0,%0; rev %1,%1"	\
+ 			: "+r"(hi),"+r"(lo));		\
+ 			(u64)hi<<32|lo;			})
+-#  define BSWAP4(x) ({	u32 ret;			\
++#   define BSWAP4(x) ({	u32 ret;			\
+ 			asm ("rev %0,%1"		\
+ 			: "=r"(ret) : "r"((u32)(x)));	\
+ 			ret;				})
++#  endif
+ # endif
+ #endif
+ #endif