feat: added cross compiler and moved headers to include dir

include/attributes.h

@@ -0,0 +1,19 @@
+//
+// Created by rick on 24-02-21.
+//
+
+#ifndef NEW_KERNEL_ATTRIBUTES_H
+#define NEW_KERNEL_ATTRIBUTES_H
+
+// generic
+#define used __attribute((used))
+
+// function
+#define noreturn __attribute((noreturn))
+#define cdecl __attribute((cdecl))
+// structure
+#define packed __attribute((packed))
+// field
+#define at_aligned(size) __attribute((aligned(size)))
+
+#endif //NEW_KERNEL_ATTRIBUTES_H