spdx: initial adoption of licensing ID tags.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

Initially, only tag files that use BSD 4-Clause "Original" license.

RelNotes:	yes
Differential Revision:	https://reviews.freebsd.org/D13133

lib/libc/arm/gen/fabs.c

@@ -1,6 +1,8 @@
 /*	$NetBSD: fabs.c,v 1.2 2002/05/26 11:48:01 wiz Exp $	*/
 
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1996 Mark Brinicombe
  *
  * Redistribution and use in source and binary forms, with or without

lib/libc/locale/euc.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright 2013 Garrett D'Amore <garrett@damore.org>
  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  * Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved.

lib/libc/mips/SYS.h

@@ -2,6 +2,8 @@
 /* $FreeBSD$ */
 
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1996 Jonathan Stone
  * All rights reserved.
  *

lib/libc/mips/gen/fabs.c

@@ -1,6 +1,8 @@
 /*	$NetBSD: fabs.c,v 1.2 2002/05/26 11:48:01 wiz Exp $	*/
 
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1996 Mark Brinicombe
  *
  * Redistribution and use in source and binary forms, with or without

lib/libc/net/ether_addr.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995 Bill Paul <wpaul@ctr.columbia.edu>.
  * Copyright (c) 2007 Robert N. M. Watson
  * All rights reserved.

lib/libc/rpc/crypt_client.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1996
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

lib/libcam/camlib.h

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause AND BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 1997, 1998 Kenneth D. Merry.
  * All rights reserved.
  *

lib/libcam/scsi_cmdparse.c

@@ -1,7 +1,10 @@
 /*
  * Taken from the original FreeBSD user SCSI library.
  */
-/* Copyright (c) 1994 HD Associates
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
+ * Copyright (c) 1994 HD Associates
  * (contact: dufault@hda.com)
  * All rights reserved.
  *

lib/libkiconv/xlat16_sysctl.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2000-2001, Boris Popov
  * All rights reserved.
  *

lib/libprocstat/cd9660.c

@@ -1,4 +1,6 @@
 /* 
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2000 Peter Edwards
  * Copyright (c) 1988, 1993
  *	The Regents of the University of California.  All rights reserved.

lib/libprocstat/common_kvm.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2009 Stanislav Sedov <stas@FreeBSD.org>
  * Copyright (c) 1988, 1993
  *	The Regents of the University of California.  All rights reserved.

lib/libprocstat/libprocstat.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2017 Dell EMC
  * Copyright (c) 2009 Stanislav Sedov <stas@FreeBSD.org>
  * Copyright (c) 1988, 1993

lib/libprocstat/msdosfs.c

@@ -1,4 +1,6 @@
-/* 
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2000 Peter Edwards
  * Copyright (c) 1988, 1993
  *	The Regents of the University of California.  All rights reserved.

lib/librpcsvc/yp_passwd.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995, 1996
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

lib/librpcsvc/yp_update.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995, 1996
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

lib/libthr/sys/thr_error.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>.
  * Copyright (c) 1994 by Chris Provenzano, proven@mit.edu
  * All rights reserved.

lib/libthr/thread/thr_attr.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003 Craig Rodrigues <rodrigc@attbi.com>.
  * All rights reserved.
  *

lib/libthr/thread/thr_autoinit.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2002 Alfred Perlstein <alfred@freebsd.org>.
  * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>.
  * All rights reserved.

lib/libthr/thread/thr_concurrency.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003 Sergey Osokin <osa@FreeBSD.org.ru>.
  * All rights reserved.
  *

lib/libthr/thread/thr_getschedparam.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>.
  * All rights reserved.
  *

lib/libthr/thread/thr_init.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003 Daniel M. Eischen <deischen@freebsd.org>
  * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
  * All rights reserved.

lib/libthr/thread/thr_mutex.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>.
  * Copyright (c) 2006 David Xu <davidxu@freebsd.org>.
  * Copyright (c) 2015, 2016 The FreeBSD Foundation

lib/libthr/thread/thr_setschedparam.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>.
  * All rights reserved.
  *

lib/libthr/thread/thr_switch_np.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>.
  * All rights reserved.
  *

lib/msun/bsdsrc/b_exp.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1985, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

lib/msun/bsdsrc/b_log.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

lib/msun/bsdsrc/b_tgamma.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

lib/msun/bsdsrc/mathimpl.h

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1988, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

libexec/mknetid/hash.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

libexec/mknetid/hash.h

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995, 1996
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

libexec/mknetid/mknetid.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995, 1996
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

libexec/revnetgroup/hash.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

libexec/revnetgroup/hash.h

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

libexec/revnetgroup/revnetgroup.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

libexec/ypxfr/yp_dbwrite.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

libexec/ypxfr/ypxfr_extern.h

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

libexec/ypxfr/ypxfr_getmap.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

libexec/ypxfr/ypxfr_main.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

libexec/ypxfr/ypxfr_misc.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

libexec/ypxfr/ypxfrd_getmap.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1995, 1996
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

release/picobsd/tinyware/login/pathnames.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

release/picobsd/tinyware/login/pico-login.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1980, 1987, 1988, 1991, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *

release/picobsd/tinyware/passwd/extern.h

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1994
  *	The Regents of the University of California.  All rights reserved.
  *

release/picobsd/tinyware/passwd/local_passwd.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1990, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *

release/picobsd/tinyware/passwd/passwd.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1988, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *

release/picobsd/tinyware/passwd/pw_copy.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1990, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *

release/picobsd/tinyware/passwd/pw_util.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1990, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *

release/picobsd/tinyware/passwd/pw_util.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1994
  *	The Regents of the University of California.  All rights reserved.
  *

sbin/bsdlabel/bsdlabel.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1994, 1995 Gordon W. Ross
  * Copyright (c) 1994 Theo de Raadt
  * All rights reserved.

sbin/etherswitchcfg/ifmedia.c

@@ -1,7 +1,9 @@
 /*	$NetBSD: ifconfig.c,v 1.34 1997/04/21 01:17:58 lukem Exp $	*/
 /* $FreeBSD$ */
 
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1997 Jason R. Thorpe.
  * All rights reserved.
  *

sbin/ffsinfo/ffsinfo.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2000 Christoph Herrmann, Thomas-Henning von Kamptz
  * Copyright (c) 1980, 1989, 1993 The Regents of the University of California.
  * All rights reserved.

sbin/growfs/debug.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2000 Christoph Herrmann, Thomas-Henning von Kamptz
  * Copyright (c) 1980, 1989, 1993 The Regents of the University of California.
  * All rights reserved.

sbin/growfs/debug.h

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2000 Christoph Herrmann, Thomas-Henning von Kamptz
  * Copyright (c) 1980, 1989, 1993 The Regents of the University of California.
  * All rights reserved.

sbin/growfs/growfs.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1980, 1989, 1993 The Regents of the University of California.
  * Copyright (c) 2000 Christoph Herrmann, Thomas-Henning von Kamptz
  * Copyright (c) 2012 The FreeBSD Foundation

sbin/gvinum/gvinum.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1997, 1998
  *	Nan Yang Computer Services Limited.  All rights reserved.
  *

sbin/ifconfig/ifmedia.c

@@ -1,7 +1,9 @@
 /*	$NetBSD: ifconfig.c,v 1.34 1997/04/21 01:17:58 lukem Exp $	*/
 /* $FreeBSD$ */
 
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1997 Jason R. Thorpe.
  * All rights reserved.
  *

sbin/ifconfig/ifvlan.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1999 Bill Paul <wpaul@ctr.columbia.edu>
  * Copyright (c) 2012 ADARA Networks, Inc.
  * All rights reserved.

sbin/rcorder/ealloc.c

@@ -1,7 +1,9 @@
 /*	$FreeBSD$	*/
 /*	$NetBSD: ealloc.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $	*/
 
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1988, 1989, 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
  * Copyright (c) 1989 by Berkeley Softworks

sbin/rcorder/hash.c

@@ -1,7 +1,9 @@
 /*	$FreeBSD$	*/
 /*	$NetBSD: hash.c,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $	*/
 
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
  * Copyright (c) 1988, 1989 by Adam de Boor
  * Copyright (c) 1989 by Berkeley Softworks

sbin/rcorder/hash.h

@@ -1,7 +1,9 @@
 /*	$FreeBSD$	*/
 /*	$NetBSD: hash.h,v 1.1.1.1 1999/11/19 04:30:56 mrg Exp $	*/
 
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
  * Copyright (c) 1988, 1989 by Adam de Boor
  * Copyright (c) 1989 by Berkeley Softworks

sbin/rcorder/sprite.h

@@ -1,6 +1,8 @@
 /*	$NetBSD: sprite.h,v 1.1 1999/11/23 05:28:22 mrg Exp $	*/
 
-/*
+/*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1988, 1989, 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
  * Copyright (c) 1989 by Berkeley Softworks
@@ -38,6 +40,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)sprite.h	8.1 (Berkeley) 6/6/93
+ * $FreeBSD$
  */
 
 /*

sys/amd64/amd64/in_cksum.c

@@ -1,6 +1,8 @@
 /* $NetBSD: in_cksum.c,v 1.7 1997/09/02 13:18:15 thorpej Exp $ */
 
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1988, 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  * Copyright (c) 1996

sys/amd64/amd64/machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003 Peter Wemm.
  * Copyright (c) 1992 Terrence R. Lambert.
  * Copyright (c) 1982, 1987, 1990 The Regents of the University of California.

sys/amd64/amd64/pmap.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1991 Regents of the University of California.
  * All rights reserved.
  * Copyright (c) 1994 John S. Dyson

sys/amd64/amd64/trap.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (C) 1994, David Greenman
  * Copyright (c) 1990, 1993
  *	The Regents of the University of California.  All rights reserved.

sys/amd64/amd64/vm_machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1982, 1986 The Regents of the University of California.
  * Copyright (c) 1989, 1990 William Jolitz
  * Copyright (c) 1994 John Dyson

sys/amd64/ia32/ia32_syscall.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (C) 1994, David Greenman
  * Copyright (c) 1990, 1993
  *	The Regents of the University of California.  All rights reserved.

sys/amd64/include/floatingpoint.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1993 Andrew Moore, Talke Studio
  * All rights reserved.
  *

sys/amd64/include/ieeefp.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003 Peter Wemm.
  * Copyright (c) 1990 Andrew Moore, Talke Studio
  * All rights reserved.

sys/amd64/include/param.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.

sys/amd64/include/varargs.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
  * Copyright (c) 1990, 1993
  *	The Regents of the University of California.  All rights reserved.

sys/amd64/include/vmparam.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  * Copyright (c) 1994 John S. Dyson

sys/arm/arm/autoconf.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *

sys/arm/arm/in_cksum.c

@@ -1,6 +1,8 @@
 /* $NetBSD: in_cksum.c,v 1.7 1997/09/02 13:18:15 thorpej Exp $ */
 
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1988, 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  * Copyright (c) 1996

sys/arm/arm/vm_machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1982, 1986 The Regents of the University of California.
  * Copyright (c) 1989, 1990 William Jolitz
  * Copyright (c) 1994 John Dyson

sys/arm/include/_align.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2001 David E. O'Brien
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.

sys/arm/include/_types.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
  * Copyright (c) 1990, 1993
  *	The Regents of the University of California.  All rights reserved.

sys/arm/include/floatingpoint.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1993 Andrew Moore, Talke Studio
  * All rights reserved.
  *

sys/arm/include/param.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2001 David E. O'Brien
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.

sys/arm/include/proc.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1991 Regents of the University of California.
  * All rights reserved.
  *

sys/arm/include/profile.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/arm/include/reloc.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

sys/compat/linprocfs/linprocfs.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2000 Dag-Erling Coïdan Smørgrav
  * Copyright (c) 1999 Pierre Beyssac
  * Copyright (c) 1993 Jan-Simon Pendry

sys/compat/ndis/cfg_var.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003
  *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/hal_var.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003
  *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/kern_ndis.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003
  *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/kern_windrv.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2005
  *      Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/ndis_var.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003
  *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/ntoskrnl_var.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003
  *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/pe_var.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003
  *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/resource_var.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2005
  *      Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/subr_hal.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003
  *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/subr_ndis.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003
  *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/subr_ntoskrnl.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003
  *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/subr_pe.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003
  *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/subr_usbd.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2005
  *      Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/compat/ndis/usbd_var.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2003
  *      Bill Paul <wpaul@windriver.com>.  All rights reserved.
  *

sys/dev/an/if_aironet_ieee.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1997, 1998, 1999
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

sys/dev/an/if_an.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1997, 1998, 1999
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *

sys/dev/an/if_an_isa.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 1997, 1998, 1999
  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  *