[project @ 1999-06-25 09:14:54 by simonmar]

[ghc-hetmet.git] / ghc / includes / Stg.h

diff --git a/ghc/includes/Stg.h b/ghc/includes/Stg.h
index f219b7a..c5ad6f4 100644 (file)
--- a/ghc/includes/Stg.h
+++ b/ghc/includes/Stg.h
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: Stg.h,v 1.11 1999/05/10 08:23:57 sof Exp $
+ * $Id: Stg.h,v 1.14 1999/06/25 09:14:54 simonmar Exp $
  *
  * (c) The GHC Team, 1998-1999
  *
@@ -25,11 +25,37 @@
 /* Some macros to handle DLLing (Win32 only at the moment). */
 #include "StgDLL.h"
 
+/* Turn lazy blackholing and eager blackholing on/off.
+ *
+ * Using eager blackholing makes things easier to debug because
+ * the blackholes are more predictable - but it's slower and less sexy.
+ *
+ * For now, do lazy and not eager.
+ */
+
+#define LAZY_BLACKHOLING
+/* #define EAGER_BLACKHOLING */
+
+#ifdef TICKY_TICKY
+/* TICKY_TICKY needs EAGER_BLACKHOLING to verify no double-entries of single-entry thunks. */
+# undef  LAZY_BLACKHOLING 
+# define EAGER_BLACKHOLING
+#endif
+
 /* ToDo: Set this flag properly: COMPILER and INTERPRETER should not be mutually exclusive. */
 #ifndef INTERPRETER
 #define COMPILER 1
 #endif
 
+/* TABLES_NEXT_TO_CODE says whether to assume that info tables are
+ * assumed to reside just before the code for a function.
+ *
+ * UNDEFINING THIS WON'T WORK ON ITS OWN.  You have been warned.
+ */
+#ifndef USE_MINIINTERPRETER
+#define TABLES_NEXT_TO_CODE
+#endif
+
 /* bit macros
  */
 #define BITS_PER_BYTE 8