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From a237553ccd15276462be2023057a017fa8ee5d7c Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Thu, 31 Dec 2015 14:35:35 -0800
Subject: [PATCH] nativesdk-glibc: Allow 64 bit atomics for x86
The fix consist of allowing 64bit atomic ops for x86.
This should be safe for i586 and newer CPUs.
It also makes the synchronization more efficient.
Upstream-Status: Inappropriate [OE-Specific]
Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
sysdeps/i386/atomic-machine.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sysdeps/i386/atomic-machine.h b/sysdeps/i386/atomic-machine.h
index 272da5dd8f..409c759f14 100644
--- a/sysdeps/i386/atomic-machine.h
+++ b/sysdeps/i386/atomic-machine.h
@@ -54,7 +54,7 @@ typedef uintmax_t uatomic_max_t;
# endif
#endif
-#define __HAVE_64B_ATOMICS 0
+#define __HAVE_64B_ATOMICS 1
#define USE_ATOMIC_COMPILER_BUILTINS 0
#define ATOMIC_EXCHANGE_USES_CAS 0
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