scripts: introduce a macro file for coccinelle

Signed-off-by: NJán Tomko <jtomko@redhat.com>
Reviewed-by: NMichal Privoznik <mprivozn@redhat.com>

scripts/cocci-macro-file.h

+/*
+ * cocci-macro-file.h: simplified macro definitions for Coccinelle
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * To be used with:
+ *   $ spatch --macro-file scripts/cocci-macro-file.h
+ */
+
+#pragma once
+
+#define ATTRIBUTE_NONNULL(x)
+#define ATTRIBUTE_PACKED
+
+#define G_GNUC_WARN_UNUSED_RESULT
+#define G_GNUC_UNUSED
+#define G_GNUC_NULL_TERMINATED
+#define G_GNUC_NORETURN
+#define G_GNUC_NO_INLINE
+#define G_GNUC_FALLTHROUGH
+#define G_GNUC_PRINTF(a, b)
+
+#define g_autoptr(x) x##_autoptr
+#define g_autofree
+#define g_auto
+
+#define BAD_CAST