X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Frts%2FRetainerProfile.h;fp=ghc%2Frts%2FRetainerProfile.h;h=51ddc64e4b3e5dd1e753095576dc875459e607c6;hb=dbef766ce79e37a74468a07a93b15ba1f06fe8f8;hp=7a2f0fb16e8d6c9de3bbef3a0449cedc1c004b7e;hpb=5680ea4b2035198981739e24ad04cd0e0d133172;p=ghc-hetmet.git

diff --git a/ghc/rts/RetainerProfile.h b/ghc/rts/RetainerProfile.h
index 7a2f0fb..51ddc64 100644
--- a/ghc/rts/RetainerProfile.h
+++ b/ghc/rts/RetainerProfile.h
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: RetainerProfile.h,v 1.1 2001/11/22 14:25:12 simonmar Exp $
+ * $Id: RetainerProfile.h,v 1.2 2001/11/26 16:54:21 simonmar Exp $
  *
  * (c) The GHC Team, 2001
  * Author: Sungwoo Park
@@ -13,12 +13,31 @@
 
 #ifdef PROFILING
 
+#include "RetainerSet.h"
+
 extern void  initRetainerProfiling ( void );
 extern void  endRetainerProfiling  ( void );
 extern void  printRetainer         ( FILE *, retainer );
 extern void  retainerProfile       ( void );
 extern void  resetStaticObjectForRetainerProfiling ( void );
 
+extern StgWord flip;
+
+// extract the retainer set field from c
+#define RSET(c)   ((c)->header.prof.hp.rs)
+
+#define isRetainerSetFieldValid(c) \
+  ((((StgWord)(c)->header.prof.hp.rs & 1) ^ flip) == 0)
+
+static inline RetainerSet *
+retainerSetOf( StgClosure *c )
+{
+    ASSERT( isRetainerSetFieldValid(c) );
+    // StgWord has the same size as pointers, so the following type
+    // casting is okay.
+    return (RetainerSet *)((StgWord)RSET(c) ^ flip);
+}
+
 // firstStack is exported because memInventory() in Schedule.c uses it.
 #ifdef DEBUG
 extern bdescr *firstStack;