From 01e427b17c161d8adaa38d6bdb91aecb434451f2 Mon Sep 17 00:00:00 2001 From: px4dev Date: Fri, 26 Apr 2013 16:14:32 -0700 Subject: Merge working changes into export-build branch. --- src/include/visibility.h | 62 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 src/include/visibility.h (limited to 'src/include/visibility.h') diff --git a/src/include/visibility.h b/src/include/visibility.h new file mode 100644 index 000000000..2c6adc062 --- /dev/null +++ b/src/include/visibility.h @@ -0,0 +1,62 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/** + * @file visibility.h + * + * Definitions controlling symbol naming and visibility. + * + * This file is normally included automatically by the build system. + */ + +#ifndef __SYSTEMLIB_VISIBILITY_H +#define __SYSTEMLIB_VISIBILITY_H + +#ifdef __EXPORT +# undef __EXPORT +#endif +#define __EXPORT __attribute__ ((visibility ("default"))) + +#ifdef __PRIVATE +# undef __PRIVATE +#endif +#define __PRIVATE __attribute__ ((visibility ("hidden"))) + +#ifdef __cplusplus +# define __BEGIN_DECLS extern "C" { +# define __END_DECLS } +#else +# define __BEGIN_DECLS +# define __END_DECLS +#endif +#endif \ No newline at end of file -- cgit v1.2.3