diff --git a/sys/lib/libkern/arch/sparc/SYS.h b/sys/lib/libkern/arch/sparc/SYS.h
deleted file mode 100644
index 9d00140e6bbe..000000000000
--- a/sys/lib/libkern/arch/sparc/SYS.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*-
- * Copyright (c) 1992, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This software was developed by the Computer Systems Engineering group
- * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
- * contributed to Berkeley.
- *
- * 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. 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.
- *
- *	@(#)SYS.h	8.1 (Berkeley) 6/4/93
- *
- *	from: Header: SYS.h,v 1.2 92/07/03 18:57:00 torek Exp
- *	$NetBSD: SYS.h,v 1.8 2005/12/11 12:24:44 christos Exp $
- */
-
-#include <machine/asm.h>
-#include <sys/syscall.h>
-#include <machine/trap.h>
-
-#ifdef __STDC__
-#define _CAT(x,y) x##y
-#else
-#define _CAT(x,y) x/**/y
-#endif
-
-/*
- * ERROR branches to cerror.  This is done with a macro so that I can
- * change it to be position independent later, if need be.
- */
-#ifdef PIC
-#define	ERROR() \
-	PIC_PROLOGUE(%g1,%g2); \
-	ld [%g1+cerror],%g2; jmp %g2; nop
-#else
-#define	ERROR() \
-	sethi %hi(cerror),%g1; or %lo(cerror),%g1,%g1; jmp %g1; nop
-#endif
-
-/*
- * SYSCALL is used when further action must be taken before returning.
- * Note that it adds a `nop' over what we could do, if we only knew what
- * came at label 1....
- */
-#define	SYSCALL(x) \
-	ENTRY(x); mov _CAT(SYS_,x),%g1; t ST_SYSCALL; bcc 1f; nop; ERROR(); 1:
-
-/*
- * RSYSCALL is used when the system call should just return.  Here
- * we use the SYSCALL_G2RFLAG to put the `success' return address in %g2
- * and avoid a branch.
- */
-#define	RSYSCALL(x) \
-	ENTRY(x); mov (_CAT(SYS_,x))|SYSCALL_G2RFLAG,%g1; add %o7,8,%g2; \
-	t ST_SYSCALL; ERROR()
-
-/*
- * PSEUDO(x,y) is like RSYSCALL(y) except that the name is x.
- */
-#define	PSEUDO(x,y) \
-	ENTRY(x); mov (_CAT(SYS_,y))|SYSCALL_G2RFLAG,%g1; add %o7,8,%g2; \
-	t ST_SYSCALL; ERROR()
-
-/*
- * SYSCALL_NOERROR is like SYSCALL, except it's used for syscalls
- * that never fail.
- *
- * XXX - This should be optimized.
- */
-#define SYSCALL_NOERROR(x) \
-	ENTRY(x); mov _CAT(SYS_,x),%g1; t ST_SYSCALL
-
-/*
- * RSYSCALL_NOERROR is like RSYSCALL, except it's used for syscalls
- * that never fail.
- *
- * XXX - This should be optimized.
- */
-#define RSYSCALL_NOERROR(x) \
-	ENTRY(x); mov (_CAT(SYS_,x))|SYSCALL_G2RFLAG,%g1; add %o7,8,%g2; \
-	t ST_SYSCALL
-
-/*
- * PSEUDO_NOERROR(x,y) is like RSYSCALL_NOERROR(y) except that the name is x.
- */
-#define PSEUDO_NOERROR(x,y) \
-	ENTRY(x); mov (_CAT(SYS_,y))|SYSCALL_G2RFLAG,%g1; add %o7,8,%g2; \
-	t ST_SYSCALL
-
-	.globl	cerror