From 5d8357976a84396ebe10ed5a0d6ba1b79ccdcf2e Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Wed, 19 Feb 2014 15:56:50 +0100 Subject: configure: Support symbol visibility when available Checks whether or not the compiler supports the -fvisibility option. If so it sets the VISIBILITY_CFLAGS variable which can be added to the per directory AM_CFLAGS where appropriate. By default all symbols will be hidden via the VISIBILITY_CFLAGS. The drm_public macro can be used to mark symbols that should be exported. Reviewed-by: Maarten Lankhorst Reviewed-by: Emil Velikov Signed-off-by: Thierry Reding --- libdrm.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 libdrm.h (limited to 'libdrm.h') diff --git a/libdrm.h b/libdrm.h new file mode 100644 index 00000000..23926e6f --- /dev/null +++ b/libdrm.h @@ -0,0 +1,34 @@ +/* + * Copyright © 2014 NVIDIA Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef LIBDRM_LIBDRM_H +#define LIBDRM_LIBDRM_H + +#if defined(HAVE_VISIBILITY) +# define drm_private __attribute__((visibility("hidden"))) +# define drm_public __attribute__((visibility("default"))) +#else +# define drm_private +# define drm_public +#endif + +#endif -- cgit v1.2.3