/******* Macro to mark functions and fields scheduled for removal *****/
#define __rte_deprecated __attribute__((__deprecated__))
+/**
+ * Mark a function or variable to a weak reference.
+ */
+#define __rte_weak __attribute__((__weak__))
+
/*********** Macros to eliminate unused variable warnings ********/
/**
*/
#define RTE_PTR_DIFF(ptr1, ptr2) ((uintptr_t)(ptr1) - (uintptr_t)(ptr2))
+/**
+ * Workaround to cast a const field of a structure to non-const type.
+ */
+#define RTE_CAST_FIELD(var, field, type) \
+ (*(type *)((uintptr_t)(var) + offsetof(typeof(*(var)), field)))
+
/*********** Macros/static functions for doing alignment ********/