Fix: update ax_pthread macro to handle newer clang
[urcu.git] / urcu-bp.h
index 3623f35..7a265dc 100644 (file)
--- a/urcu-bp.h
+++ b/urcu-bp.h
@@ -74,6 +74,7 @@ extern "C" {
  */
 #define rcu_read_lock_bp               _rcu_read_lock
 #define rcu_read_unlock_bp             _rcu_read_unlock
+#define rcu_read_ongoing_bp            _rcu_read_ongoing
 
 #define rcu_dereference_bp             rcu_dereference
 #define rcu_cmpxchg_pointer_bp         rcu_cmpxchg_pointer
@@ -87,50 +88,49 @@ extern "C" {
  * See LGPL-only urcu/static/urcu-pointer.h for documentation.
  */
 
-extern void rcu_read_lock(void)
-       __attribute__((weak));
-extern void rcu_read_unlock(void)
-       __attribute__((weak));
+extern void rcu_read_lock(void);
+extern void rcu_read_unlock(void);
+extern int rcu_read_ongoing(void);
 
-extern void *rcu_dereference_sym_bp(void *p)
-       __attribute__((weak));
+extern void *rcu_dereference_sym_bp(void *p);
 #define rcu_dereference_bp(p)                                               \
+       __extension__                                                        \
        ({                                                                   \
-               typeof(p) _________p1 = URCU_FORCE_CAST(typeof(p),           \
+               __typeof__(p) _________p1 = URCU_FORCE_CAST(__typeof__(p),   \
                        rcu_dereference_sym_bp(URCU_FORCE_CAST(void *, p))); \
                (_________p1);                                               \
        })
 
-extern void *rcu_cmpxchg_pointer_sym_bp(void **p, void *old, void *_new)
-       __attribute__((weak));
+extern void *rcu_cmpxchg_pointer_sym_bp(void **p, void *old, void *_new);
 #define rcu_cmpxchg_pointer_bp(p, old, _new)                                \
+       __extension__                                                        \
        ({                                                                   \
-               typeof(*(p)) _________pold = (old);                          \
-               typeof(*(p)) _________pnew = (_new);                         \
-               typeof(*(p)) _________p1 = URCU_FORCE_CAST(typeof(*(p)),     \
-                       rcu_cmpxchg_pointer_sym_bp(URCU_FORCE_CAST(void **, p),\
+               __typeof__(*(p)) _________pold = (old);                      \
+               __typeof__(*(p)) _________pnew = (_new);                     \
+               __typeof__(*(p)) _________p1 = URCU_FORCE_CAST(__typeof__(*(p)), \
+                       rcu_cmpxchg_pointer_sym_bp(URCU_FORCE_CAST(void **, p), \
                                                _________pold,               \
                                                _________pnew));             \
                (_________p1);                                               \
        })
 
-extern void *rcu_xchg_pointer_sym_bp(void **p, void *v)
-       __attribute__((weak));
+extern void *rcu_xchg_pointer_sym_bp(void **p, void *v);
 #define rcu_xchg_pointer_bp(p, v)                                           \
+       __extension__                                                        \
        ({                                                                   \
-               typeof(*(p)) _________pv = (v);                              \
-               typeof(*(p)) _________p1 = URCU_FORCE_CAST(typeof(*(p)),     \
+               __typeof__(*(p)) _________pv = (v);                          \
+               __typeof__(*(p)) _________p1 = URCU_FORCE_CAST(__typeof__(*(p)),\
                        rcu_xchg_pointer_sym_bp(URCU_FORCE_CAST(void **, p), \
                                             _________pv));                  \
                (_________p1);                                               \
        })
 
-extern void *rcu_set_pointer_sym_bp(void **p, void *v)
-       __attribute__((weak));
+extern void *rcu_set_pointer_sym_bp(void **p, void *v);
 #define rcu_set_pointer_bp(p, v)                                            \
+       __extension__                                                        \
        ({                                                                   \
-               typeof(*(p)) _________pv = (v);                              \
-               typeof(*(p)) _________p1 = URCU_FORCE_CAST(typeof(*(p)),     \
+               __typeof__(*(p)) _________pv = (v);                          \
+               __typeof__(*(p)) _________p1 = URCU_FORCE_CAST(__typeof__(*(p)), \
                        rcu_set_pointer_sym_bp(URCU_FORCE_CAST(void **, p),  \
                                            _________pv));                   \
                (_________p1);                                               \
@@ -180,7 +180,7 @@ static inline void rcu_thread_online(void)
 {
 }
 
-#ifdef __cplusplus 
+#ifdef __cplusplus
 }
 #endif
 
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