#endif
};
+/**
+ * Mempool object trailer structure
+ *
+ * In debug mode, each object stored in mempools are suffixed by this
+ * trailer structure containing a cookie preventing memory corruptions.
+ */
+struct rte_mempool_objtlr {
+#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
+ uint64_t cookie; /**< Debug cookie. */
+#endif
+};
+
/**
* The RTE mempool structure.
*/
sizeof(struct rte_mempool_objhdr));
}
+/* return the trailer of a mempool object (internal) */
+static inline struct rte_mempool_objtlr *__mempool_get_trailer(void *obj)
+{
+ return (struct rte_mempool_objtlr *)((char *)obj -
+ sizeof(struct rte_mempool_objtlr));
+}
+
/**
* Return a pointer to the mempool owning this object.
*
return hdr->mp;
}
-#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
-/* get trailer cookie value */
-static inline uint64_t __mempool_read_trailer_cookie(void *obj)
-{
- struct rte_mempool *mp = rte_mempool_from_obj(obj);
- return *(uint64_t *)((char *)obj + mp->elt_size);
-
-}
-
-/* write trailer cookie value */
-static inline void __mempool_write_trailer_cookie(void *obj)
-{
- uint64_t *cookie_p;
- struct rte_mempool *mp = rte_mempool_from_obj(obj);
- cookie_p = (uint64_t *)((char *)obj + mp->elt_size);
- *cookie_p = RTE_MEMPOOL_TRAILER_COOKIE;
-}
-#endif /* RTE_LIBRTE_MEMPOOL_DEBUG */
-
/**
* @internal Check and update cookies or panic.
*
unsigned n, int free)
{
struct rte_mempool_objhdr *hdr;
+ struct rte_mempool_objtlr *tlr;
uint64_t cookie;
void *tmp;
void *obj;
rte_panic("MEMPOOL: bad header cookie (audit)\n");
}
}
- cookie = __mempool_read_trailer_cookie(obj);
+ tlr = __mempool_get_trailer(obj);
+ cookie = tlr->cookie;
if (cookie != RTE_MEMPOOL_TRAILER_COOKIE) {
rte_log_set_history(0);
RTE_LOG(CRIT, MEMPOOL,