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List: dri-patches
Subject: drm: Branch 'master'
From: tagr () kemper ! freedesktop ! org (Thierry Reding)
Date: 2014-07-30 14:59:54
Message-ID: 20140730145954.804E276251 () kemper ! freedesktop ! org
[Download RAW message or body]
Makefile.am | 1 +
configure.ac | 20 ++++++++++++++++++++
libdrm.h | 34 ++++++++++++++++++++++++++++++++++
3 files changed, 55 insertions(+)
New commits:
commit 5d8357976a84396ebe10ed5a0d6ba1b79ccdcf2e
Author: Thierry Reding <treding@nvidia.com>
Date: Wed Feb 19 15:56:50 2014 +0100
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 <maarten.lankhorst@canonical.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
diff --git a/Makefile.am b/Makefile.am
index 826c30d..65680da 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -69,6 +69,7 @@ libdrm_la_SOURCES = \
xf86drmSL.c \
xf86drmMode.c \
xf86atomic.h \
+ libdrm.h \
libdrm_lists.h
libdrmincludedir = ${includedir}
diff --git a/configure.ac b/configure.ac
index 5e9cb6c..bb0559a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -366,6 +366,26 @@ AC_ARG_WITH([kernel-source],
[kernel_source="$with_kernel_source"])
AC_SUBST(kernel_source)
+dnl Add flags for gcc and g++
+if test "x$GCC" = xyes; then
+ # Enable -fvisibility=hidden if using a gcc that supports it
+ save_CFLAGS="$CFLAGS"
+ AC_MSG_CHECKING([whether $CC supports -fvisibility=hidden])
+ VISIBILITY_CFLAGS="-fvisibility=hidden"
+ CFLAGS="$CFLAGS $VISIBILITY_CFLAGS"
+ AC_LINK_IFELSE([AC_LANG_PROGRAM()], AC_MSG_RESULT([yes]),
+ [VISIBILITY_CFLAGS=""; AC_MSG_RESULT([no])]);
+
+ # Restore CFLAGS; VISIBILITY_CFLAGS are added to it where needed.
+ CFLAGS=$save_CFLAGS
+
+ if test "x$VISIBILITY_CFLAGS" != x; then
+ AC_DEFINE(HAVE_VISIBILITY, 1, [Compiler has -fvisibility support])
+ fi
+
+ AC_SUBST([VISIBILITY_CFLAGS])
+fi
+
AC_SUBST(WARN_CFLAGS)
AC_CONFIG_FILES([
Makefile
diff --git a/libdrm.h b/libdrm.h
new file mode 100644
index 0000000..23926e6
--- /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
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