#ifndef BLOCK_ALLOC_H
#define BLOCK_ALLOC_H
+#pragma GCC visibility push(hidden)
+
/* Debugging -------------------------------------------------------------- */
#ifdef DEBUG
-extern void checkFreeListSanity(void);
-nat countFreeList(void);
+void checkFreeListSanity(void);
+nat countFreeList(void);
+void markBlocks (bdescr *bd);
+void reportUnmarkedBlocks (void);
#endif
+extern lnat n_alloc_blocks; // currently allocated blocks
+extern lnat hw_alloc_blocks; // high-water allocated blocks
+
+#pragma GCC visibility pop
+
#endif /* BLOCK_ALLOC_H */