| From 2bafdbd7067794c6a24e5e85608c0ec4638c5667 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 04/27] 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 |
| |
| -- |
| 2.16.1 |
| |