X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=includes%2FBlock.h;h=3d7a5c8a8668343c20c3651cd8e9b21c500a92df;hb=bb7ffa1642e2110e26e1243c42a8a24adafa985d;hp=112092c5c448eb3a0f38df85b35f30cdfa9e6109;hpb=fac738e582dcaca1575f5291c83910db01d25284;p=ghc-hetmet.git

diff --git a/includes/Block.h b/includes/Block.h
index 112092c..3d7a5c8 100644
--- a/includes/Block.h
+++ b/includes/Block.h
@@ -54,6 +54,7 @@ typedef struct bdescr_ {
   union { 
       struct bdescr_ *back;	/* used (occasionally) for doubly-linked lists*/
       StgWord *bitmap;
+      StgPtr  scan;             /* scan pointer for copying GC */
   } u;
   unsigned int gen_no;		/* generation */
   struct step_ *step;		/* step */
@@ -83,12 +84,15 @@ typedef struct bdescr_ {
 #define BF_LARGE     2
 /* Block is pinned */
 #define BF_PINNED    4
-/* Block is part of a compacted generation */
-#define BF_COMPACTED 8
+/* Block is to be marked, not copied */
+#define BF_MARKED    8
 /* Block is free, and on the free list  (TODO: is this used?) */
 #define BF_FREE      16
 /* Block is executable */
 #define BF_EXEC	     32
+/* Block contains only a small amount of live data */
+#define BF_FRAGMENTED 64
+
 
 /* Finding the block descriptor for a given block -------------------------- */