1 files changed, 55 insertions, 0 deletions

diff --git a/meta/recipes-support/boost/boost/arm-intrinsics.patch b/meta/recipes-support/boost/boost/arm-intrinsics.patch
new file mode 100644
index 0000000000..fe85c69a82
--- /dev/null
+++ b/meta/recipes-support/boost/boost/arm-intrinsics.patch
@@ -0,0 +1,55 @@
+Upstream-Status: Backport
+
+8/17/2010 - rebased to 1.44 by Qing He <qing.he@intel.com>
+
+diff --git a/boost/smart_ptr/detail/atomic_count_sync.hpp b/boost/smart_ptr/detail/atomic_count_sync.hpp
+index b6359b5..78b1cc2 100644
+--- a/boost/smart_ptr/detail/atomic_count_sync.hpp
++++ b/boost/smart_ptr/detail/atomic_count_sync.hpp
+@@ -33,17 +33,46 @@ public:
+ 
+     long operator++()
+     {
++#ifdef __ARM_ARCH_7A__
++       int v1, tmp;
++       asm volatile ("1:                 \n\t"
++                     "ldrex   %0, %1     \n\t"
++                     "add     %0 ,%0, #1 \n\t"
++                     "strex   %2, %0, %1 \n\t"
++                     "cmp     %2, #0     \n\t"
++                     "bne     1b         \n\t"
++                     : "=&r" (v1), "+Q"(value_), "=&r"(tmp)
++                    );
++#else
+         return __sync_add_and_fetch( &value_, 1 );
++#endif
+     }
+ 
+     long operator--()
+     {
++#ifdef __ARM_ARCH_7A__
++       int v1, tmp;
++       asm volatile ("1:                 \n\t"
++                     "ldrex   %0, %1     \n\t"
++                     "sub     %0 ,%0, #1 \n\t"
++                     "strex   %2, %0, %1 \n\t"
++                     "cmp     %2, #0     \n\t"
++                     "bne     1b         \n\t"
++                     : "=&r" (v1), "+Q"(value_), "=&r"(tmp)
++                    );
++       return value_;
++#else
+         return __sync_add_and_fetch( &value_, -1 );
++#endif
+     }
+ 
+     operator long() const
+     {
++#if __ARM_ARCH_7A__
++        return value_;
++#else
+         return __sync_fetch_and_add( &value_, 0 );
++#endif
+     }
+ 
+ private: