Fix: bring back dummy rcu_bp_exit symbol

Needed to keep so compatibility within stable branch.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/urcu-bp.c b/urcu-bp.c
index 7c573d6ec1f7624328018dfc19313a5d6e964a3f..7a591a20da3ac8a58adc8c1ca1c0ffbf982350fe 100644 (file)
--- a/urcu-bp.c
+++ b/urcu-bp.c
@@ -97,7 +97,7 @@ int rcu_bp_refcount;
 static
 void __attribute__((constructor)) rcu_bp_init(void);
 static
-void __attribute__((destructor)) rcu_bp_exit(void);
+void __attribute__((destructor)) _rcu_bp_exit(void);
 
 static pthread_mutex_t rcu_gp_lock = PTHREAD_MUTEX_INITIALIZER;
 
@@ -519,7 +519,7 @@ void rcu_bp_unregister(struct rcu_reader *rcu_reader_reg)
        ret = pthread_sigmask(SIG_SETMASK, &oldmask, NULL);
        if (ret)
                abort();
-       rcu_bp_exit();
+       _rcu_bp_exit();
 }
 
 /*
@@ -549,7 +549,7 @@ void rcu_bp_init(void)
 }
 
 static
-void rcu_bp_exit(void)
+void _rcu_bp_exit(void)
 {
        mutex_lock(&init_lock);
        if (!--rcu_bp_refcount) {
@@ -568,6 +568,15 @@ void rcu_bp_exit(void)
        mutex_unlock(&init_lock);
 }
 
+/*
+ * Keep ABI compability within stable versions. This has never been
+ * exposed through a header, but needs to stay in the .so until the
+ * soname is bumped.
+ */
+void rcu_bp_exit(void)
+{
+}
+
 /*
  * Holding the rcu_gp_lock across fork will make sure we fork() don't race with
  * a concurrent thread executing with this same lock held. This ensures that the