Adding upstream version 3.3.4.upstream/3.3.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/src/libknot/attribute.h b/src/libknot/attribute.h
new file mode 100644
index 0000000..525aef3
--- /dev/null
+++ b/src/libknot/attribute.h
@@ -0,0 +1,51 @@
+/*  Copyright (C) 2021 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*!
+ * \file
+ *
+ * \brief Function and variable attributes.
+ *
+ * \addtogroup libknot
+ * @{
+ */
+
+#pragma once
+
+/*! \brief Library visibility macros. */
+#define _public_ __attribute__((visibility("default")))
+#define _hidden_ __attribute__((visibility("hidden")))
+
+#define _unused_ __attribute__((unused))
+
+#define _cleanup_(var) __attribute__((cleanup(var)))
+
+/*! \brief GNU C function attributes. */
+#if __GNUC__ >= 3
+#define _pure_      __attribute__ ((pure))
+#define _const_     __attribute__ ((const))
+#define _noreturn_  __attribute__ ((noreturn))
+#define _malloc_    __attribute__ ((malloc))
+#define _mustcheck_ __attribute__ ((warn_unused_result))
+#else
+#define _pure_
+#define _const_
+#define _noreturn_
+#define _malloc_
+#define _mustcheck_
+#endif
+
+/*! @} */