diff --git a/sys/sparc64/include/sysarch.h b/sys/sparc64/include/sysarch.h
new file mode 100644
index 00000000000..e9db27fb9e4
--- /dev/null
+++ b/sys/sparc64/include/sysarch.h
@@ -0,0 +1,69 @@
+/*-
+ * Copyright (c) 1993 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ *
+ *	from: FreeBSD: src/sys/i386/include/sysarch.h,v 1.14 2000/09/21
+ * $FreeBSD$
+ */
+
+/*
+ * Architecture specific syscalls (sparc64)
+ */
+#ifndef _MACHINE_SYSARCH_H_
+#define _MACHINE_SYSARCH_H_
+
+#define	SPARC_UTRAP_INSTALL	1
+
+struct sparc_utrap_install_args {
+	int num;
+	const struct sparc_utrap_args *handlers;
+};
+
+struct sparc_utrap_args {
+	utrap_entry_t type;
+	utrap_handler_t new_precise;
+	utrap_handler_t new_deferred;
+	utrap_handler_t *old_precise;
+	utrap_handler_t *old_deferred;
+};
+
+#ifndef _KERNEL
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+int __sparc_utrap_install(utrap_entry_t type, utrap_handler_t new_precise,
+			  utrap_handler_t new_deferred,
+			  utrap_handler_t *old_precise,
+			  utrap_handler_t *old_deferred);
+__END_DECLS
+#endif
+
+#endif /* !_MACHINE_SYSARCH_H_ */