Jemalloc updated to 4.0.3.

1 files changed, 412 insertions, 65 deletions

diff --git a/deps/jemalloc/include/jemalloc/internal/atomic.h b/deps/jemalloc/include/jemalloc/internal/atomic.h
index 11a7b47fe..a9aad35d1 100644
--- a/deps/jemalloc/include/jemalloc/internal/atomic.h
+++ b/deps/jemalloc/include/jemalloc/internal/atomic.h
@@ -11,6 +11,7 @@
 
 #define	atomic_read_uint64(p)	atomic_add_uint64(p, 0)
 #define	atomic_read_uint32(p)	atomic_add_uint32(p, 0)
+#define	atomic_read_p(p)	atomic_add_p(p, NULL)
 #define	atomic_read_z(p)	atomic_add_z(p, 0)
 #define	atomic_read_u(p)	atomic_add_u(p, 0)
 
@@ -18,113 +19,244 @@
 /******************************************************************************/
 #ifdef JEMALLOC_H_INLINES
 
+/*
+ * All arithmetic functions return the arithmetic result of the atomic
+ * operation.  Some atomic operation APIs return the value prior to mutation, in
+ * which case the following functions must redundantly compute the result so
+ * that it can be returned.  These functions are normally inlined, so the extra
+ * operations can be optimized away if the return values aren't used by the
+ * callers.
+ *
+ *   <t> atomic_read_<t>(<t> *p) { return (*p); }
+ *   <t> atomic_add_<t>(<t> *p, <t> x) { return (*p + x); }
+ *   <t> atomic_sub_<t>(<t> *p, <t> x) { return (*p - x); }
+ *   bool atomic_cas_<t>(<t> *p, <t> c, <t> s)
+ *   {
+ *     if (*p != c)
+ *       return (true);
+ *     *p = s;
+ *     return (false);
+ *   }
+ *   void atomic_write_<t>(<t> *p, <t> x) { *p = x; }
+ */
+
 #ifndef JEMALLOC_ENABLE_INLINE
 uint64_t	atomic_add_uint64(uint64_t *p, uint64_t x);
 uint64_t	atomic_sub_uint64(uint64_t *p, uint64_t x);
+bool	atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s);
+void	atomic_write_uint64(uint64_t *p, uint64_t x);
 uint32_t	atomic_add_uint32(uint32_t *p, uint32_t x);
 uint32_t	atomic_sub_uint32(uint32_t *p, uint32_t x);
+bool	atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s);
+void	atomic_write_uint32(uint32_t *p, uint32_t x);
+void	*atomic_add_p(void **p, void *x);
+void	*atomic_sub_p(void **p, void *x);
+bool	atomic_cas_p(void **p, void *c, void *s);
+void	atomic_write_p(void **p, const void *x);
 size_t	atomic_add_z(size_t *p, size_t x);
 size_t	atomic_sub_z(size_t *p, size_t x);
+bool	atomic_cas_z(size_t *p, size_t c, size_t s);
+void	atomic_write_z(size_t *p, size_t x);
 unsigned	atomic_add_u(unsigned *p, unsigned x);
 unsigned	atomic_sub_u(unsigned *p, unsigned x);
+bool	atomic_cas_u(unsigned *p, unsigned c, unsigned s);
+void	atomic_write_u(unsigned *p, unsigned x);
 #endif
 
 #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_ATOMIC_C_))
 /******************************************************************************/
 /* 64-bit operations. */
 #if (LG_SIZEOF_PTR == 3 || LG_SIZEOF_INT == 3)
-#  ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
+#  if (defined(__amd64__) || defined(__x86_64__))
 JEMALLOC_INLINE uint64_t
 atomic_add_uint64(uint64_t *p, uint64_t x)
 {
+	uint64_t t = x;
 
-	return (__sync_add_and_fetch(p, x));
+	asm volatile (
+	    "lock; xaddq %0, %1;"
+	    : "+r" (t), "=m" (*p) /* Outputs. */
+	    : "m" (*p) /* Inputs. */
+	    );
+
+	return (t + x);
 }
 
 JEMALLOC_INLINE uint64_t
 atomic_sub_uint64(uint64_t *p, uint64_t x)
 {
+	uint64_t t;
 
-	return (__sync_sub_and_fetch(p, x));
+	x = (uint64_t)(-(int64_t)x);
+	t = x;
+	asm volatile (
+	    "lock; xaddq %0, %1;"
+	    : "+r" (t), "=m" (*p) /* Outputs. */
+	    : "m" (*p) /* Inputs. */
+	    );
+
+	return (t + x);
 }
-#elif (defined(_MSC_VER))
+
+JEMALLOC_INLINE bool
+atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
+{
+	uint8_t success;
+
+	asm volatile (
+	    "lock; cmpxchgq %4, %0;"
+	    "sete %1;"
+	    : "=m" (*p), "=a" (success) /* Outputs. */
+	    : "m" (*p), "a" (c), "r" (s) /* Inputs. */
+	    : "memory" /* Clobbers. */
+	    );
+
+	return (!(bool)success);
+}
+
+JEMALLOC_INLINE void
+atomic_write_uint64(uint64_t *p, uint64_t x)
+{
+
+	asm volatile (
+	    "xchgq %1, %0;" /* Lock is implied by xchgq. */
+	    : "=m" (*p), "+r" (x) /* Outputs. */
+	    : "m" (*p) /* Inputs. */
+	    : "memory" /* Clobbers. */
+	    );
+}
+#  elif (defined(JEMALLOC_C11ATOMICS))
 JEMALLOC_INLINE uint64_t
 atomic_add_uint64(uint64_t *p, uint64_t x)
 {
-
-	return (InterlockedExchangeAdd64(p, x));
+	volatile atomic_uint_least64_t *a = (volatile atomic_uint_least64_t *)p;
+	return (atomic_fetch_add(a, x) + x);
 }
 
 JEMALLOC_INLINE uint64_t
 atomic_sub_uint64(uint64_t *p, uint64_t x)
 {
+	volatile atomic_uint_least64_t *a = (volatile atomic_uint_least64_t *)p;
+	return (atomic_fetch_sub(a, x) - x);
+}
+
+JEMALLOC_INLINE bool
+atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
+{
+	volatile atomic_uint_least64_t *a = (volatile atomic_uint_least64_t *)p;
+	return (!atomic_compare_exchange_strong(a, &c, s));
+}
 
-	return (InterlockedExchangeAdd64(p, -((int64_t)x)));
+JEMALLOC_INLINE void
+atomic_write_uint64(uint64_t *p, uint64_t x)
+{
+	volatile atomic_uint_least64_t *a = (volatile atomic_uint_least64_t *)p;
+	atomic_store(a, x);
 }
-#elif (defined(JEMALLOC_OSATOMIC))
+#  elif (defined(JEMALLOC_ATOMIC9))
 JEMALLOC_INLINE uint64_t
 atomic_add_uint64(uint64_t *p, uint64_t x)
 {
 
-	return (OSAtomicAdd64((int64_t)x, (int64_t *)p));
+	/*
+	 * atomic_fetchadd_64() doesn't exist, but we only ever use this
+	 * function on LP64 systems, so atomic_fetchadd_long() will do.
+	 */
+	assert(sizeof(uint64_t) == sizeof(unsigned long));
+
+	return (atomic_fetchadd_long(p, (unsigned long)x) + x);
 }
 
 JEMALLOC_INLINE uint64_t
 atomic_sub_uint64(uint64_t *p, uint64_t x)
 {
 
-	return (OSAtomicAdd64(-((int64_t)x), (int64_t *)p));
+	assert(sizeof(uint64_t) == sizeof(unsigned long));
+
+	return (atomic_fetchadd_long(p, (unsigned long)(-(long)x)) - x);
+}
+
+JEMALLOC_INLINE bool
+atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
+{
+
+	assert(sizeof(uint64_t) == sizeof(unsigned long));
+
+	return (!atomic_cmpset_long(p, (unsigned long)c, (unsigned long)s));
+}
+
+JEMALLOC_INLINE void
+atomic_write_uint64(uint64_t *p, uint64_t x)
+{
+
+	assert(sizeof(uint64_t) == sizeof(unsigned long));
+
+	atomic_store_rel_long(p, x);
 }
-#  elif (defined(__amd64__) || defined(__x86_64__))
+#  elif (defined(JEMALLOC_OSATOMIC))
 JEMALLOC_INLINE uint64_t
 atomic_add_uint64(uint64_t *p, uint64_t x)
 {
 
-	asm volatile (
-	    "lock; xaddq %0, %1;"
-	    : "+r" (x), "=m" (*p) /* Outputs. */
-	    : "m" (*p) /* Inputs. */
-	    );
-
-	return (x);
+	return (OSAtomicAdd64((int64_t)x, (int64_t *)p));
 }
 
 JEMALLOC_INLINE uint64_t
 atomic_sub_uint64(uint64_t *p, uint64_t x)
 {
 
-	x = (uint64_t)(-(int64_t)x);
-	asm volatile (
-	    "lock; xaddq %0, %1;"
-	    : "+r" (x), "=m" (*p) /* Outputs. */
-	    : "m" (*p) /* Inputs. */
-	    );
+	return (OSAtomicAdd64(-((int64_t)x), (int64_t *)p));
+}
+
+JEMALLOC_INLINE bool
+atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
+{
 
-	return (x);
+	return (!OSAtomicCompareAndSwap64(c, s, (int64_t *)p));
 }
-#  elif (defined(JEMALLOC_ATOMIC9))
+
+JEMALLOC_INLINE void
+atomic_write_uint64(uint64_t *p, uint64_t x)
+{
+	uint64_t o;
+
+	/*The documented OSAtomic*() API does not expose an atomic exchange. */
+	do {
+		o = atomic_read_uint64(p);
+	} while (atomic_cas_uint64(p, o, x));
+}
+#  elif (defined(_MSC_VER))
 JEMALLOC_INLINE uint64_t
 atomic_add_uint64(uint64_t *p, uint64_t x)
 {
 
-	/*
-	 * atomic_fetchadd_64() doesn't exist, but we only ever use this
-	 * function on LP64 systems, so atomic_fetchadd_long() will do.
-	 */
-	assert(sizeof(uint64_t) == sizeof(unsigned long));
-
-	return (atomic_fetchadd_long(p, (unsigned long)x) + x);
+	return (InterlockedExchangeAdd64(p, x) + x);
 }
 
 JEMALLOC_INLINE uint64_t
 atomic_sub_uint64(uint64_t *p, uint64_t x)
 {
 
-	assert(sizeof(uint64_t) == sizeof(unsigned long));
+	return (InterlockedExchangeAdd64(p, -((int64_t)x)) - x);
+}
 
-	return (atomic_fetchadd_long(p, (unsigned long)(-(long)x)) - x);
+JEMALLOC_INLINE bool
+atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
+{
+	uint64_t o;
+
+	o = InterlockedCompareExchange64(p, s, c);
+	return (o != c);
 }
-#  elif (defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_8))
+
+JEMALLOC_INLINE void
+atomic_write_uint64(uint64_t *p, uint64_t x)
+{
+
+	InterlockedExchange64(p, x);
+}
+#  elif (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) || \
+    defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_8))
 JEMALLOC_INLINE uint64_t
 atomic_add_uint64(uint64_t *p, uint64_t x)
 {
@@ -138,6 +270,20 @@ atomic_sub_uint64(uint64_t *p, uint64_t x)
 
 	return (__sync_sub_and_fetch(p, x));
 }
+
+JEMALLOC_INLINE bool
+atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
+{
+
+	return (!__sync_bool_compare_and_swap(p, c, s));
+}
+
+JEMALLOC_INLINE void
+atomic_write_uint64(uint64_t *p, uint64_t x)
+{
+
+	__sync_lock_test_and_set(p, x);
+}
 #  else
 #    error "Missing implementation for 64-bit atomic operations"
 #  endif
@@ -145,90 +291,184 @@ atomic_sub_uint64(uint64_t *p, uint64_t x)
 
 /******************************************************************************/
 /* 32-bit operations. */
-#ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
+#if (defined(__i386__) || defined(__amd64__) || defined(__x86_64__))
 JEMALLOC_INLINE uint32_t
 atomic_add_uint32(uint32_t *p, uint32_t x)
 {
+	uint32_t t = x;
 
-	return (__sync_add_and_fetch(p, x));
+	asm volatile (
+	    "lock; xaddl %0, %1;"
+	    : "+r" (t), "=m" (*p) /* Outputs. */
+	    : "m" (*p) /* Inputs. */
+	    );
+
+	return (t + x);
 }
 
 JEMALLOC_INLINE uint32_t
 atomic_sub_uint32(uint32_t *p, uint32_t x)
 {
+	uint32_t t;
 
-	return (__sync_sub_and_fetch(p, x));
+	x = (uint32_t)(-(int32_t)x);
+	t = x;
+	asm volatile (
+	    "lock; xaddl %0, %1;"
+	    : "+r" (t), "=m" (*p) /* Outputs. */
+	    : "m" (*p) /* Inputs. */
+	    );
+
+	return (t + x);
 }
-#elif (defined(_MSC_VER))
+
+JEMALLOC_INLINE bool
+atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
+{
+	uint8_t success;
+
+	asm volatile (
+	    "lock; cmpxchgl %4, %0;"
+	    "sete %1;"
+	    : "=m" (*p), "=a" (success) /* Outputs. */
+	    : "m" (*p), "a" (c), "r" (s) /* Inputs. */
+	    : "memory"
+	    );
+
+	return (!(bool)success);
+}
+
+JEMALLOC_INLINE void
+atomic_write_uint32(uint32_t *p, uint32_t x)
+{
+
+	asm volatile (
+	    "xchgl %1, %0;" /* Lock is implied by xchgl. */
+	    : "=m" (*p), "+r" (x) /* Outputs. */
+	    : "m" (*p) /* Inputs. */
+	    : "memory" /* Clobbers. */
+	    );
+}
+#  elif (defined(JEMALLOC_C11ATOMICS))
 JEMALLOC_INLINE uint32_t
 atomic_add_uint32(uint32_t *p, uint32_t x)
 {
-
-	return (InterlockedExchangeAdd(p, x));
+	volatile atomic_uint_least32_t *a = (volatile atomic_uint_least32_t *)p;
+	return (atomic_fetch_add(a, x) + x);
 }
 
 JEMALLOC_INLINE uint32_t
 atomic_sub_uint32(uint32_t *p, uint32_t x)
 {
+	volatile atomic_uint_least32_t *a = (volatile atomic_uint_least32_t *)p;
+	return (atomic_fetch_sub(a, x) - x);
+}
+
+JEMALLOC_INLINE bool
+atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
+{
+	volatile atomic_uint_least32_t *a = (volatile atomic_uint_least32_t *)p;
+	return (!atomic_compare_exchange_strong(a, &c, s));
+}
 
-	return (InterlockedExchangeAdd(p, -((int32_t)x)));
+JEMALLOC_INLINE void
+atomic_write_uint32(uint32_t *p, uint32_t x)
+{
+	volatile atomic_uint_least32_t *a = (volatile atomic_uint_least32_t *)p;
+	atomic_store(a, x);
 }
-#elif (defined(JEMALLOC_OSATOMIC))
+#elif (defined(JEMALLOC_ATOMIC9))
 JEMALLOC_INLINE uint32_t
 atomic_add_uint32(uint32_t *p, uint32_t x)
 {
 
-	return (OSAtomicAdd32((int32_t)x, (int32_t *)p));
+	return (atomic_fetchadd_32(p, x) + x);
 }
 
 JEMALLOC_INLINE uint32_t
 atomic_sub_uint32(uint32_t *p, uint32_t x)
 {
 
-	return (OSAtomicAdd32(-((int32_t)x), (int32_t *)p));
+	return (atomic_fetchadd_32(p, (uint32_t)(-(int32_t)x)) - x);
+}
+
+JEMALLOC_INLINE bool
+atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
+{
+
+	return (!atomic_cmpset_32(p, c, s));
+}
+
+JEMALLOC_INLINE void
+atomic_write_uint32(uint32_t *p, uint32_t x)
+{
+
+	atomic_store_rel_32(p, x);
 }
-#elif (defined(__i386__) || defined(__amd64__) || defined(__x86_64__))
+#elif (defined(JEMALLOC_OSATOMIC))
 JEMALLOC_INLINE uint32_t
 atomic_add_uint32(uint32_t *p, uint32_t x)
 {
 
-	asm volatile (
-	    "lock; xaddl %0, %1;"
-	    : "+r" (x), "=m" (*p) /* Outputs. */
-	    : "m" (*p) /* Inputs. */
-	    );
-
-	return (x);
+	return (OSAtomicAdd32((int32_t)x, (int32_t *)p));
 }
 
 JEMALLOC_INLINE uint32_t
 atomic_sub_uint32(uint32_t *p, uint32_t x)
 {
 
-	x = (uint32_t)(-(int32_t)x);
-	asm volatile (
-	    "lock; xaddl %0, %1;"
-	    : "+r" (x), "=m" (*p) /* Outputs. */
-	    : "m" (*p) /* Inputs. */
-	    );
+	return (OSAtomicAdd32(-((int32_t)x), (int32_t *)p));
+}
 
-	return (x);
+JEMALLOC_INLINE bool
+atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
+{
+
+	return (!OSAtomicCompareAndSwap32(c, s, (int32_t *)p));
 }
-#elif (defined(JEMALLOC_ATOMIC9))
+
+JEMALLOC_INLINE void
+atomic_write_uint32(uint32_t *p, uint32_t x)
+{
+	uint32_t o;
+
+	/*The documented OSAtomic*() API does not expose an atomic exchange. */
+	do {
+		o = atomic_read_uint32(p);
+	} while (atomic_cas_uint32(p, o, x));
+}
+#elif (defined(_MSC_VER))
 JEMALLOC_INLINE uint32_t
 atomic_add_uint32(uint32_t *p, uint32_t x)
 {
 
-	return (atomic_fetchadd_32(p, x) + x);
+	return (InterlockedExchangeAdd(p, x) + x);
 }
 
 JEMALLOC_INLINE uint32_t
 atomic_sub_uint32(uint32_t *p, uint32_t x)
 {
 
-	return (atomic_fetchadd_32(p, (uint32_t)(-(int32_t)x)) - x);
+	return (InterlockedExchangeAdd(p, -((int32_t)x)) - x);
+}
+
+JEMALLOC_INLINE bool
+atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
+{
+	uint32_t o;
+
+	o = InterlockedCompareExchange(p, s, c);
+	return (o != c);
 }
-#elif (defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_4))
+
+JEMALLOC_INLINE void
+atomic_write_uint32(uint32_t *p, uint32_t x)
+{
+
+	InterlockedExchange(p, x);
+}
+#elif (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) || \
+ defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_4))
 JEMALLOC_INLINE uint32_t
 atomic_add_uint32(uint32_t *p, uint32_t x)
 {
@@ -242,11 +482,73 @@ atomic_sub_uint32(uint32_t *p, uint32_t x)
 
 	return (__sync_sub_and_fetch(p, x));
 }
+
+JEMALLOC_INLINE bool
+atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
+{
+
+	return (!__sync_bool_compare_and_swap(p, c, s));
+}
+
+JEMALLOC_INLINE void
+atomic_write_uint32(uint32_t *p, uint32_t x)
+{
+
+	__sync_lock_test_and_set(p, x);
+}
 #else
 #  error "Missing implementation for 32-bit atomic operations"
 #endif
 
 /******************************************************************************/
+/* Pointer operations. */
+JEMALLOC_INLINE void *
+atomic_add_p(void **p, void *x)
+{
+
+#if (LG_SIZEOF_PTR == 3)
+	return ((void *)atomic_add_uint64((uint64_t *)p, (uint64_t)x));
+#elif (LG_SIZEOF_PTR == 2)
+	return ((void *)atomic_add_uint32((uint32_t *)p, (uint32_t)x));
+#endif
+}
+
+JEMALLOC_INLINE void *
+atomic_sub_p(void **p, void *x)
+{
+
+#if (LG_SIZEOF_PTR == 3)
+	return ((void *)atomic_add_uint64((uint64_t *)p,
+	    (uint64_t)-((int64_t)x)));
+#elif (LG_SIZEOF_PTR == 2)
+	return ((void *)atomic_add_uint32((uint32_t *)p,
+	    (uint32_t)-((int32_t)x)));
+#endif
+}
+
+JEMALLOC_INLINE bool
+atomic_cas_p(void **p, void *c, void *s)
+{
+
+#if (LG_SIZEOF_PTR == 3)
+	return (atomic_cas_uint64((uint64_t *)p, (uint64_t)c, (uint64_t)s));
+#elif (LG_SIZEOF_PTR == 2)
+	return (atomic_cas_uint32((uint32_t *)p, (uint32_t)c, (uint32_t)s));
+#endif
+}
+
+JEMALLOC_INLINE void
+atomic_write_p(void **p, const void *x)
+{
+
+#if (LG_SIZEOF_PTR == 3)
+	atomic_write_uint64((uint64_t *)p, (uint64_t)x);
+#elif (LG_SIZEOF_PTR == 2)
+	atomic_write_uint32((uint32_t *)p, (uint32_t)x);
+#endif
+}
+
+/******************************************************************************/
 /* size_t operations. */
 JEMALLOC_INLINE size_t
 atomic_add_z(size_t *p, size_t x)
@@ -272,6 +574,28 @@ atomic_sub_z(size_t *p, size_t x)
 #endif
 }
 
+JEMALLOC_INLINE bool
+atomic_cas_z(size_t *p, size_t c, size_t s)
+{
+
+#if (LG_SIZEOF_PTR == 3)
+	return (atomic_cas_uint64((uint64_t *)p, (uint64_t)c, (uint64_t)s));
+#elif (LG_SIZEOF_PTR == 2)
+	return (atomic_cas_uint32((uint32_t *)p, (uint32_t)c, (uint32_t)s));
+#endif
+}
+
+JEMALLOC_INLINE void
+atomic_write_z(size_t *p, size_t x)
+{
+
+#if (LG_SIZEOF_PTR == 3)
+	atomic_write_uint64((uint64_t *)p, (uint64_t)x);
+#elif (LG_SIZEOF_PTR == 2)
+	atomic_write_uint32((uint32_t *)p, (uint32_t)x);
+#endif
+}
+
 /******************************************************************************/
 /* unsigned operations. */
 JEMALLOC_INLINE unsigned
@@ -297,6 +621,29 @@ atomic_sub_u(unsigned *p, unsigned x)
 	    (uint32_t)-((int32_t)x)));
 #endif
 }
+
+JEMALLOC_INLINE bool
+atomic_cas_u(unsigned *p, unsigned c, unsigned s)
+{
+
+#if (LG_SIZEOF_INT == 3)
+	return (atomic_cas_uint64((uint64_t *)p, (uint64_t)c, (uint64_t)s));
+#elif (LG_SIZEOF_INT == 2)
+	return (atomic_cas_uint32((uint32_t *)p, (uint32_t)c, (uint32_t)s));
+#endif
+}
+
+JEMALLOC_INLINE void
+atomic_write_u(unsigned *p, unsigned x)
+{
+
+#if (LG_SIZEOF_INT == 3)
+	atomic_write_uint64((uint64_t *)p, (uint64_t)x);
+#elif (LG_SIZEOF_INT == 2)
+	atomic_write_uint32((uint32_t *)p, (uint32_t)x);
+#endif
+}
+
 /******************************************************************************/
 #endif