--- /dev/null
+#ifndef _URCU_MAP_H
+#define _URCU_MAP_H
+
+/*
+ * urcu-map.h
+ *
+ * Userspace RCU header -- name mapping to allow multiple flavors to be
+ * used in the same executable.
+ *
+ * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
+ *
+ * LGPL-compatible code should include this header with :
+ *
+ * #define _LGPL_SOURCE
+ * #include <urcu.h>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * IBM's contributions to this file may be relicensed under LGPLv2 or later.
+ */
+
+/* Mapping macros to allow multiple flavors in a single binary. */
+
+#if !defined(RCU_MEMBARRIER) && !defined(RCU_SIGNAL) && !defined(RCU_MB)
+#define RCU_MEMBARRIER
+#endif
+
+#ifdef RCU_MEMBARRIER
+
+#define rcu_read_lock rcu_read_lock_memb
+#define _rcu_read_lock _rcu_read_lock_memb
+#define rcu_read_unlock rcu_read_unlock_memb
+#define _rcu_read_unlock _rcu_read_unlock_memb
+#define rcu_read_ongoing rcu_read_ongoing_memb
+#define _rcu_read_ongoing _rcu_read_ongoing_memb
+#define rcu_register_thread rcu_register_thread_memb
+#define rcu_unregister_thread rcu_unregister_thread_memb
+#define rcu_init rcu_init_memb
+#define rcu_exit rcu_exit_memb
+#define synchronize_rcu synchronize_rcu_memb
+#define rcu_reader rcu_reader_memb
+#define rcu_gp rcu_gp_memb
+
+#define get_cpu_call_rcu_data get_cpu_call_rcu_data_memb
+#define get_call_rcu_thread get_call_rcu_thread_memb
+#define create_call_rcu_data create_call_rcu_data_memb
+#define set_cpu_call_rcu_data set_cpu_call_rcu_data_memb
+#define get_default_call_rcu_data get_default_call_rcu_data_memb
+#define get_call_rcu_data get_call_rcu_data_memb
+#define get_thread_call_rcu_data get_thread_call_rcu_data_memb
+#define set_thread_call_rcu_data set_thread_call_rcu_data_memb
+#define create_all_cpu_call_rcu_data create_all_cpu_call_rcu_data_memb
+#define free_all_cpu_call_rcu_data free_all_cpu_call_rcu_data_memb
+#define call_rcu call_rcu_memb
+#define call_rcu_data_free call_rcu_data_free_memb
+#define call_rcu_before_fork call_rcu_before_fork_memb
+#define call_rcu_after_fork_parent call_rcu_after_fork_parent_memb
+#define call_rcu_after_fork_child call_rcu_after_fork_child_memb
+#define rcu_barrier rcu_barrier_memb
+
+#define defer_rcu defer_rcu_memb
+#define rcu_defer_register_thread rcu_defer_register_thread_memb
+#define rcu_defer_unregister_thread rcu_defer_unregister_thread_memb
+#define rcu_defer_barrier rcu_defer_barrier_memb
+#define rcu_defer_barrier_thread rcu_defer_barrier_thread_memb
+#define rcu_defer_exit rcu_defer_exit_memb
+
+#define rcu_flavor rcu_flavor_memb
+
+/* Specific to MEMBARRIER flavor */
+#define rcu_has_sys_membarrier rcu_has_sys_membarrier_memb
+
+#elif defined(RCU_SIGNAL)
+
+#define rcu_read_lock rcu_read_lock_sig
+#define _rcu_read_lock _rcu_read_lock_sig
+#define rcu_read_unlock rcu_read_unlock_sig
+#define _rcu_read_unlock _rcu_read_unlock_sig
+#define rcu_read_ongoing rcu_read_ongoing_sig
+#define _rcu_read_ongoing _rcu_read_ongoing_sig
+#define rcu_register_thread rcu_register_thread_sig
+#define rcu_unregister_thread rcu_unregister_thread_sig
+#define rcu_init rcu_init_sig
+#define rcu_exit rcu_exit_sig
+#define synchronize_rcu synchronize_rcu_sig
+#define rcu_reader rcu_reader_sig
+#define rcu_gp rcu_gp_sig
+
+#define get_cpu_call_rcu_data get_cpu_call_rcu_data_sig
+#define get_call_rcu_thread get_call_rcu_thread_sig
+#define create_call_rcu_data create_call_rcu_data_sig
+#define set_cpu_call_rcu_data set_cpu_call_rcu_data_sig
+#define get_default_call_rcu_data get_default_call_rcu_data_sig
+#define get_call_rcu_data get_call_rcu_data_sig
+#define get_thread_call_rcu_data get_thread_call_rcu_data_sig
+#define set_thread_call_rcu_data set_thread_call_rcu_data_sig
+#define create_all_cpu_call_rcu_data create_all_cpu_call_rcu_data_sig
+#define free_all_cpu_call_rcu_data free_all_cpu_call_rcu_data_sig
+#define call_rcu call_rcu_sig
+#define call_rcu_data_free call_rcu_data_free_sig
+#define call_rcu_before_fork call_rcu_before_fork_sig
+#define call_rcu_after_fork_parent call_rcu_after_fork_parent_sig
+#define call_rcu_after_fork_child call_rcu_after_fork_child_sig
+#define rcu_barrier rcu_barrier_sig
+
+#define defer_rcu defer_rcu_sig
+#define rcu_defer_register_thread rcu_defer_register_thread_sig
+#define rcu_defer_unregister_thread rcu_defer_unregister_thread_sig
+#define rcu_defer_barrier rcu_defer_barrier_sig
+#define rcu_defer_barrier_thread rcu_defer_barrier_thread_sig
+#define rcu_defer_exit rcu_defer_exit_sig
+
+#define rcu_flavor rcu_flavor_sig
+
+#elif defined(RCU_MB)
+
+#define rcu_read_lock rcu_read_lock_mb
+#define _rcu_read_lock _rcu_read_lock_mb
+#define rcu_read_unlock rcu_read_unlock_mb
+#define _rcu_read_unlock _rcu_read_unlock_mb
+#define rcu_read_ongoing rcu_read_ongoing_mb
+#define _rcu_read_ongoing _rcu_read_ongoing_mb
+#define rcu_register_thread rcu_register_thread_mb
+#define rcu_unregister_thread rcu_unregister_thread_mb
+#define rcu_init rcu_init_mb
+#define rcu_exit rcu_exit_mb
+#define synchronize_rcu synchronize_rcu_mb
+#define rcu_reader rcu_reader_mb
+#define rcu_gp rcu_gp_mb
+
+#define get_cpu_call_rcu_data get_cpu_call_rcu_data_mb
+#define get_call_rcu_thread get_call_rcu_thread_mb
+#define create_call_rcu_data create_call_rcu_data_mb
+#define set_cpu_call_rcu_data set_cpu_call_rcu_data_mb
+#define get_default_call_rcu_data get_default_call_rcu_data_mb
+#define get_call_rcu_data get_call_rcu_data_mb
+#define get_thread_call_rcu_data get_thread_call_rcu_data_mb
+#define set_thread_call_rcu_data set_thread_call_rcu_data_mb
+#define create_all_cpu_call_rcu_data create_all_cpu_call_rcu_data_mb
+#define free_all_cpu_call_rcu_data free_all_cpu_call_rcu_data_mb
+#define call_rcu call_rcu_mb
+#define call_rcu_data_free call_rcu_data_free_mb
+#define call_rcu_before_fork call_rcu_before_fork_mb
+#define call_rcu_after_fork_parent call_rcu_after_fork_parent_mb
+#define call_rcu_after_fork_child call_rcu_after_fork_child_mb
+#define rcu_barrier rcu_barrier_mb
+
+#define defer_rcu defer_rcu_mb
+#define rcu_defer_register_thread rcu_defer_register_thread_mb
+#define rcu_defer_unregister_thread rcu_defer_unregister_thread_mb
+#define rcu_defer_barrier rcu_defer_barrier_mb
+#define rcu_defer_barrier_thread rcu_defer_barrier_thread_mb
+#define rcu_defer_exit rcu_defer_exit_mb
+
+#define rcu_flavor rcu_flavor_mb
+
+#else
+
+#error "Undefined selection"
+
+#endif
+
+#endif /* _URCU_MAP_H */