Initial import, still work in progress

1 files changed, 43 insertions, 0 deletions

diff --git a/compiler.h b/compiler.h
new file mode 100644
index 0000000..0921edd
--- /dev/null
+++ b/compiler.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2015 Tobias Klauser <tklauser@distanz.ch>
+ *
+ * This file is part of llmnrd.
+ *
+ * llmnrd 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, version 2 of the License.
+ *
+ * llmnrd 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 llmnrd.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef COMPILER_H
+#define COMPILER_H
+
+#ifdef __GNUC__
+# define __noreturn	__attribute__((noreturn))
+# define __packed	__attribute__((packed))
+# define __unused	__attribute__((unused))
+# define offsetof(a, b)	__builtin_offsetof(a, b)
+#else
+# define __noreturn
+# define __packed
+# define __unused
+#endif
+
+#ifndef offsetof
+# define offsetof(type, member)	((size_t) &((type *)0)->member)
+#endif
+
+#ifndef container_of
+# define container_of(ptr, type, member) ({			\
+	const typeof(((type *)0)->member) *__mptr = (ptr);	\
+	(type *)((char *)__mptr - offsetof(type, member));})
+#endif
+
+#endif /* COMPILER_H */