From e7a1118984d071fdd65c486c52271ad4f1561fb8 Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Mon, 25 Jan 2016 21:59:55 +0000
Subject: [PATCH] fix arm a_crash for big endian

contrary to commit 89e149d275a7699a4a5e4c98bab267648f64cbba, big
endian arm does need the instruction bytes in big endian order. rather
than trying to use a special encoding that works as arm or thumb,
simply encode the simplest/canonical undefined instructions dependent
on whether __thumb__ is defined.
---
 arch/arm/atomic_arch.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/atomic_arch.h b/arch/arm/atomic_arch.h
index a74cf3b7..21db6b22 100644
--- a/arch/arm/atomic_arch.h
+++ b/arch/arm/atomic_arch.h
@@ -66,9 +66,11 @@ static inline void a_barrier()
 #define a_crash a_crash
 static inline void a_crash()
 {
-	__asm__ __volatile__(".byte 0xf1, 0xde"
+	__asm__ __volatile__(
 #ifndef __thumb__
-		", 0xfd, 0xe7"
+		".word 0xe7f000f0"
+#else
+		".short 0xdeff"
 #endif
 		: : : "memory");
 }
-- 
2.11.4.GIT