X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=libringbuffer%2Ffrontend_internal.h;h=690f7f7a85e215b6c82d39b31c6fa2d152e63b0c;hb=65c48d6a4b532436c000f8b3b9b771cfe9c07491;hp=f6d91bde2bf63f0917b9bd27b90e73ed54429bcc;hpb=fb31eb73d8a4a6d9784ed5c335b7fa3b9684108c;p=lttng-ust.git

diff --git a/libringbuffer/frontend_internal.h b/libringbuffer/frontend_internal.h
index f6d91bde..690f7f7a 100644
--- a/libringbuffer/frontend_internal.h
+++ b/libringbuffer/frontend_internal.h
@@ -1,36 +1,16 @@
-#ifndef _LTTNG_RING_BUFFER_FRONTEND_INTERNAL_H
-#define _LTTNG_RING_BUFFER_FRONTEND_INTERNAL_H
-
 /*
- * libringbuffer/frontend_internal.h
- *
- * Ring Buffer Library Synchronization Header (internal helpers).
+ * SPDX-License-Identifier: (LGPL-2.1-only or GPL-2.0-only)
  *
  * Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
- * 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; only
- * version 2.1 of the License.
- *
- * 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
- *
- *
- * Author:
- *	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Ring Buffer Library Synchronization Header (internal helpers).
  *
  * See ring_buffer_frontend.c for more information on wait-free algorithms.
- *
- * Dual LGPL v2.1/GPL v2 license.
  */
 
+#ifndef _LTTNG_RING_BUFFER_FRONTEND_INTERNAL_H
+#define _LTTNG_RING_BUFFER_FRONTEND_INTERNAL_H
+
 #include <urcu/compiler.h>
 #include <urcu/tls-compat.h>
 #include <signal.h>
@@ -158,15 +138,18 @@ int last_tsc_overflow(const struct lttng_ust_lib_ring_buffer_config *config,
 }
 #endif
 
+__attribute__((visibility("hidden")))
 extern
 int lib_ring_buffer_reserve_slow(struct lttng_ust_lib_ring_buffer_ctx *ctx,
 		void *client_ctx);
 
+__attribute__((visibility("hidden")))
 extern
 void lib_ring_buffer_switch_slow(struct lttng_ust_lib_ring_buffer *buf,
 				 enum switch_mode mode,
 				 struct lttng_ust_shm_handle *handle);
 
+__attribute__((visibility("hidden")))
 void lib_ring_buffer_check_deliver_slow(const struct lttng_ust_lib_ring_buffer_config *config,
 				   struct lttng_ust_lib_ring_buffer *buf,
 			           struct channel *chan,
@@ -357,14 +340,18 @@ void lib_ring_buffer_write_commit_counter(const struct lttng_ust_lib_ring_buffer
 		v_set(config, &cc_hot->seq, commit_count);
 }
 
+__attribute__((visibility("hidden")))
 extern int lib_ring_buffer_create(struct lttng_ust_lib_ring_buffer *buf,
 				  struct channel_backend *chanb, int cpu,
 				  struct lttng_ust_shm_handle *handle,
 				  struct shm_object *shmobj);
+
+__attribute__((visibility("hidden")))
 extern void lib_ring_buffer_free(struct lttng_ust_lib_ring_buffer *buf,
 				 struct lttng_ust_shm_handle *handle);
 
 /* Keep track of trap nesting inside ring buffer code */
+__attribute__((visibility("hidden")))
 extern DECLARE_URCU_TLS(unsigned int, lib_ring_buffer_nesting);
 
 #endif /* _LTTNG_RING_BUFFER_FRONTEND_INTERNAL_H */