+int mmalloc_compare_heap(xbt_mheap_t mdp1, xbt_mheap_t mdp2, void* s_heap);
+
+void mmalloc_backtrace_display(xbt_mheap_t mdp, void *addr);
+
+void mmalloc_backtrace_block_display(xbt_mheap_t mdp, size_t block);
+
+void mmalloc_backtrace_fragment_display(xbt_mheap_t mdp, size_t block, size_t frag);
+