/* ----------------------------------------------------------------------------
- * $Id: InfoTables.h,v 1.33 2004/08/13 13:09:17 simonmar Exp $
+ * $Id: InfoTables.h,v 1.34 2004/10/07 15:54:26 wolfgang Exp $
*
* (c) The GHC Team, 1998-2002
*
StgWord bitmap; // word-sized bit pattern describing
// a stack frame: see below
+#ifndef TABLES_NEXT_TO_CODE
StgLargeBitmap* large_bitmap; // pointer to large bitmap structure
+#else
+ StgWord large_bitmap_offset; // offset from info table to large bitmap structure
+#endif
StgWord selector_offset; // used in THUNK_SELECTORs
-------------------------------------------------------------------------- */
typedef struct _StgFunInfoExtraRev {
- StgFun *slow_apply; // apply to args on the stack
+ StgWord slow_apply_offset; // apply to args on the stack
StgWord bitmap; // arg ptr/nonptr bitmap
- StgSRT *srt; // pointer to the SRT table
+ StgWord srt_offset; // pointer to the SRT table
StgHalfWord fun_type; // function type
StgHalfWord arity; // function arity
} StgFunInfoExtraRev;
typedef struct {
#if defined(TABLES_NEXT_TO_CODE)
- StgSRT *srt; // pointer to the SRT table
+ StgWord srt_offset; // offset to the SRT table
StgInfoTable i;
#else
StgInfoTable i;
#if !defined(TABLES_NEXT_TO_CODE)
StgInfoTable i;
#endif
+#if defined(TABLES_NEXT_TO_CODE)
+ StgWord srt_offset; // offset to the SRT table
+#else
StgSRT *srt; // pointer to the SRT table
+#endif
#if defined(TABLES_NEXT_TO_CODE)
StgInfoTable i;
#endif
} StgThunkInfoTable;
+
+/* -----------------------------------------------------------------------------
+ Accessor macros for fields that might be offsets (C version)
+ -------------------------------------------------------------------------- */
+
+// GET_SRT(info)
+// info must be a Stg[Ret|Thunk]InfoTable* (an info table that has a SRT)
+#ifdef TABLES_NEXT_TO_CODE
+#define GET_SRT(info) ((StgSRT*) (((StgWord) ((info)+1)) + (info)->srt_offset))
+#else
+#define GET_SRT(info) ((info)->srt)
+#endif
+
+// GET_FUN_SRT(info)
+// info must be a StgFunInfoTable*
+#ifdef TABLES_NEXT_TO_CODE
+#define GET_FUN_SRT(info) ((StgSRT*) (((StgWord) ((info)+1)) + (info)->f.srt_offset))
+#else
+#define GET_FUN_SRT(info) ((info)->f.srt)
+#endif
+
+#ifdef TABLES_NEXT_TO_CODE
+#define GET_LARGE_BITMAP(info) ((StgLargeBitmap*) (((StgWord) ((info)+1)) \
+ + (info)->layout.large_bitmap_offset))
+#else
+#define GET_LARGE_BITMAP(info) ((info)->layout.large_bitmap)
+#endif
+
+#ifdef TABLES_NEXT_TO_CODE
+#define GET_FUN_LARGE_BITMAP(info) ((StgLargeBitmap*) (((StgWord) ((info)+1)) \
+ + (info)->f.bitmap))
+#else
+#define GET_FUN_LARGE_BITMAP(info) ((StgLargeBitmap*) ((info)->f.bitmap))
+#endif
+
+
#endif /* INFOTABLES_H */