Index: kernel/arch/mips32/include/cp0.h
===================================================================
--- kernel/arch/mips32/include/cp0.h	(revision 2b698d86ef8bca30acb1f746e8a61eb544b07a12)
+++ kernel/arch/mips32/include/cp0.h	(revision a66e299372bdb43d55e8f9e08081d47accc2dbdf)
@@ -36,5 +36,9 @@
 #define KERN_mips32_CP0_H_
 
+#ifdef KERNEL
 #include <typedefs.h>
+#else
+#include <sys/types.h>
+#endif
 
 #define cp0_status_ie_enabled_bit     (1 << 0)
Index: kernel/arch/mips32/include/exception.h
===================================================================
--- kernel/arch/mips32/include/exception.h	(revision 2b698d86ef8bca30acb1f746e8a61eb544b07a12)
+++ kernel/arch/mips32/include/exception.h	(revision a66e299372bdb43d55e8f9e08081d47accc2dbdf)
@@ -37,6 +37,5 @@
 
 #include <typedefs.h>
-#include <arch/cp0.h>
-#include <trace.h>
+#include <arch/istate.h>
 
 #define EXC_Int    0
@@ -59,72 +58,4 @@
 #define EXC_VCED   31
 
-typedef struct istate {
-	/*
-	 * The first seven registers are arranged so that the istate structure
-	 * can be used both for exception handlers and for the syscall handler.
-	 */
-	uint32_t a0;	/* arg1 */
-	uint32_t a1;	/* arg2 */
-	uint32_t a2;	/* arg3 */
-	uint32_t a3;	/* arg4 */
-	uint32_t t0;	/* arg5 */
-	uint32_t t1;	/* arg6 */
-	uint32_t v0;	/* arg7 */
-	uint32_t v1;
-	uint32_t at;
-	uint32_t t2;
-	uint32_t t3;
-	uint32_t t4;
-	uint32_t t5;
-	uint32_t t6;
-	uint32_t t7;
-	uint32_t s0;
-	uint32_t s1;
-	uint32_t s2;
-	uint32_t s3;
-	uint32_t s4;
-	uint32_t s5;
-	uint32_t s6;
-	uint32_t s7;
-	uint32_t t8;
-	uint32_t t9;
-	uint32_t kt0;
-	uint32_t kt1;	/* We use it as thread-local pointer */
-	uint32_t gp;
-	uint32_t sp;
-	uint32_t s8;
-	uint32_t ra;
-	
-	uint32_t lo;
-	uint32_t hi;
-	
-	uint32_t status;	/* cp0_status */
-	uint32_t epc;		/* cp0_epc */
-
-	uint32_t alignment;	/* to make sizeof(istate_t) a multiple of 8 */
-} istate_t;
-
-NO_TRACE static inline void istate_set_retaddr(istate_t *istate,
-    uintptr_t retaddr)
-{
-	istate->epc = retaddr;
-}
-
-/** Return true if exception happened while in userspace */
-NO_TRACE static inline int istate_from_uspace(istate_t *istate)
-{
-	return istate->status & cp0_status_um_bit;
-}
-
-NO_TRACE static inline unative_t istate_get_pc(istate_t *istate)
-{
-	return istate->epc;
-}
-
-NO_TRACE static inline unative_t istate_get_fp(istate_t *istate)
-{
-	return istate->sp;
-}
-
 extern void exception(istate_t *istate);
 extern void tlb_refill_entry(void);
Index: kernel/arch/mips32/include/istate.h
===================================================================
--- kernel/arch/mips32/include/istate.h	(revision a66e299372bdb43d55e8f9e08081d47accc2dbdf)
+++ kernel/arch/mips32/include/istate.h	(revision a66e299372bdb43d55e8f9e08081d47accc2dbdf)
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2003-2004 Jakub Jermar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup mips32interrupt
+ * @{
+ */
+/** @file
+ */
+
+#ifndef KERN_mips32_ISTATE_H_
+#define KERN_mips32_ISTATE_H_
+
+#include <arch/cp0.h>
+
+#ifdef KERNEL
+#include <typedefs.h>
+#include <trace.h>
+#else
+#include <sys/types.h>
+#define NO_TRACE
+#endif
+
+typedef struct istate {
+	/*
+	 * The first seven registers are arranged so that the istate structure
+	 * can be used both for exception handlers and for the syscall handler.
+	 */
+	uint32_t a0;	/* arg1 */
+	uint32_t a1;	/* arg2 */
+	uint32_t a2;	/* arg3 */
+	uint32_t a3;	/* arg4 */
+	uint32_t t0;	/* arg5 */
+	uint32_t t1;	/* arg6 */
+	uint32_t v0;	/* arg7 */
+	uint32_t v1;
+	uint32_t at;
+	uint32_t t2;
+	uint32_t t3;
+	uint32_t t4;
+	uint32_t t5;
+	uint32_t t6;
+	uint32_t t7;
+	uint32_t s0;
+	uint32_t s1;
+	uint32_t s2;
+	uint32_t s3;
+	uint32_t s4;
+	uint32_t s5;
+	uint32_t s6;
+	uint32_t s7;
+	uint32_t t8;
+	uint32_t t9;
+	uint32_t kt0;
+	uint32_t kt1;	/* We use it as thread-local pointer */
+	uint32_t gp;
+	uint32_t sp;
+	uint32_t s8;
+	uint32_t ra;
+	
+	uint32_t lo;
+	uint32_t hi;
+	
+	uint32_t status;	/* cp0_status */
+	uint32_t epc;		/* cp0_epc */
+
+	uint32_t alignment;	/* to make sizeof(istate_t) a multiple of 8 */
+} istate_t;
+
+NO_TRACE static inline void istate_set_retaddr(istate_t *istate,
+    uintptr_t retaddr)
+{
+	istate->epc = retaddr;
+}
+
+/** Return true if exception happened while in userspace */
+NO_TRACE static inline int istate_from_uspace(istate_t *istate)
+{
+	return istate->status & cp0_status_um_bit;
+}
+
+NO_TRACE static inline uintptr_t istate_get_pc(istate_t *istate)
+{
+	return istate->epc;
+}
+
+NO_TRACE static inline uintptr_t istate_get_fp(istate_t *istate)
+{
+	return istate->sp;
+}
+
+#endif
+
+/** @}
+ */
