+} StgRetInfoTable;
+
+/* -----------------------------------------------------------------------------
+ Thunk info tables
+ -------------------------------------------------------------------------- */
+
+/*
+ * When info tables are laid out backwards, we can omit the SRT
+ * pointer iff srt_bitmap is zero.
+ */
+
+typedef struct _StgThunkInfoTable {
+#if !defined(TABLES_NEXT_TO_CODE)
+ StgInfoTable i;
+#endif
+#if defined(TABLES_NEXT_TO_CODE)
+ OFFSET_FIELD( 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.b.bitmap_offset))
+#else
+#define GET_FUN_LARGE_BITMAP(info) ((StgLargeBitmap*) ((info)->f.b.bitmap))
+#endif
+