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diff --git a/i386/util/anno.h b/i386/util/anno.h
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+/* 
+ * Copyright (c) 1995-1994 The University of Utah and
+ * the Computer Systems Laboratory at the University of Utah (CSL).
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify and distribute this software is hereby
+ * granted provided that (1) source code retains these copyright, permission,
+ * and disclaimer notices, and (2) redistributions including binaries
+ * reproduce the notices in supporting documentation, and (3) all advertising
+ * materials mentioning features or use of this software display the following
+ * acknowledgement: ``This product includes software developed by the
+ * Computer Systems Laboratory at the University of Utah.''
+ *
+ * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
+ * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
+ * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * CSL requests users of this software to return to csl-dist@cs.utah.edu any
+ * improvements that they make and grant CSL redistribution rights.
+ *
+ *      Author: Bryan Ford, University of Utah CSL
+ */
+#ifndef _I386_KERNEL_UTIL_ANNO_H_
+#define _I386_KERNEL_UTIL_ANNO_H_
+
+#ifndef ASSEMBLER
+
+
+struct anno_table
+{
+	struct anno_entry	*start;
+	struct anno_entry	*end;
+};
+
+struct anno_entry
+{
+	int			val1;
+	int			val2;
+	int			val3;
+	struct anno_table	*table;
+};
+
+
+#else /* ASSEMBLER */
+
+
+/* Create an arbitrary annotation entry.
+   Must switch back to an appropriate segment afterward.  */
+#define ANNO_ENTRY(table, val1, val2, val3)	\
+	.section .anno,"aw",@progbits		;\
+	.long	val1,val2,val3,table
+
+/* Create an annotation entry for code in a text segment.  */
+#define ANNO_TEXT(table, val2, val3)		\
+9:	ANNO_ENTRY(table, 9b, val2, val3)	;\
+	.text
+
+
+
+/* The following are for common annotation tables.
+   These don't have to be used in any given kernel,
+   and others can be defined as convenient.  */
+
+
+/* The anno_intr table is generally accessed
+   on hardware interrupts that occur while running in kernel mode.
+   The value is a routine for the trap handler in interrupt.S
+   to jump to before processing the hardware interrupt.
+   This routine applies to all code from this address
+   up to but not including the address of the next ANNO_INTR.
+   To disable interrupt redirection for a piece of code,
+   place an ANNO_INTR(0) before it.  */
+
+#define ANNO_INTR(routine) \
+	ANNO_TEXT(anno_intr, routine, 0)
+
+
+/* The anno_trap table is accessed
+   on processor traps that occur in kernel mode.
+   If a match is found in this table,
+   the specified alternate handler is run instead of the generic handler.
+   A match is found only if the EIP exactly matches an ANNO_TRAP entry
+   (i.e. these entries apply to individual instructions, not groups),
+   and if the trap type that occurred matches the type specified.  */
+
+#define ANNO_TRAP(type, routine) \
+	ANNO_TEXT(anno_trap, type, routine)
+
+
+#endif /* ASSEMBLER */
+
+#endif _I386_KERNEL_UTIL_ANNO_H_