-void stat_startGC(void);
-void stat_endGC (lnat alloc, lnat live,
- lnat copied, lnat gen,
- lnat max_copied, lnat avg_copied, lnat slop);
+void stat_startGC(struct gc_thread_ *gct);
+void stat_endGC (struct gc_thread_ *gct, lnat alloc, lnat live,
+ lnat copied, nat gen,
+ lnat max_copied, lnat avg_copied, lnat slop);
+
+void stat_gcWorkerThreadStart (struct gc_thread_ *gct);
+void stat_gcWorkerThreadDone (struct gc_thread_ *gct);