initial import of NetBSD tree

11 files changed, 527 insertions, 0 deletions

diff --git a/lib/libarch/Makefile b/lib/libarch/Makefile
new file mode 100644
index 00000000000..7c5ef2530f4
--- /dev/null
+++ b/lib/libarch/Makefile
@@ -0,0 +1,33 @@
+#	$Id: Makefile,v 1.1 1995/10/18 08:41:19 deraadt Exp $
+
+.if exists(${.CURDIR}/${MACHINE})
+.PATH:	${.CURDIR}/${MACHINE}
+.include "${.CURDIR}/${MACHINE}/Makefile.inc"
+AINC+= -I${.CURDIR}/${MACHINE}
+.endif
+
+.if exists(${.CURDIR}/${MACHINE_ARCH}) && (${MACHINE} != ${MACHINE_ARCH})
+.PATH:	${.CURDIR}/${MACHINE_ARCH}
+.include "${.CURDIR}/${MACHINE_ARCH}/Makefile.inc"
+AINC+= -I${.CURDIR}/${MACHINE_ARCH}
+.endif
+
+OBJS+= ${ASM}
+POBJS+=	${ASM:.o=.po}
+CLEANFILES+= ${ASM} ${POBJS}
+
+
+.if exists(${.CURDIR}/${MACHINE}) || exists(${.CURDIR}/${MACHINE_ARCH})
+# then there's a lib for this machine/machine architecture
+LIB=	${MACHINE}
+.include <bsd.lib.mk>
+.else
+# there's NOT, so get the targets right
+all:
+clean:
+cleandir:
+depend:
+install:
+lint:
+obj:
+.endif
diff --git a/lib/libarch/i386/Makefile.inc b/lib/libarch/i386/Makefile.inc
new file mode 100644
index 00000000000..9c967b8fbe1
--- /dev/null
+++ b/lib/libarch/i386/Makefile.inc
@@ -0,0 +1,12 @@
+#	Makefile.inc,v 1.1 1993/09/03 19:04:23 jtc Exp
+
+.PATH: ${LIBC}/i386
+
+SRCS+=	i386_get_ldt.c i386_set_ldt.c \
+	i386_iopl.c i386_get_ioperm.c i386_set_ioperm.c
+
+MAN+=	i386_get_ldt.2 \
+	i386_iopl.2 i386_get_ioperm.2
+
+MLINKS+=i386_get_ldt.2 i386_set_ldt.2 \
+	i386_get_ioperm.2 i386_set_ioperm.2
diff --git a/lib/libarch/i386/i386_get_ioperm.2 b/lib/libarch/i386/i386_get_ioperm.2
new file mode 100644
index 00000000000..aaf8cfaecd3
--- /dev/null
+++ b/lib/libarch/i386/i386_get_ioperm.2
@@ -0,0 +1,80 @@
+.\" Copyright (c) 1980, 1991 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: @(#)fork.2	6.5 (Berkeley) 3/10/91
+.\"	$Id: i386_get_ioperm.2,v 1.1 1995/10/18 08:41:19 deraadt Exp $
+.\"
+.Dd October 14, 1995
+.Dt I386_GET_IOPERM 2
+.Os NetBSD
+.Sh NAME
+.Nm i386_get_ioperm ,
+.Nm i386_set_ioperm
+.Nd manage i386 per-process I/O permission bitmap
+.Sh SYNOPSIS
+.Fd #include <machine/sysarch.h>
+.Ft int
+.Fn i386_get_ioperm "u_long *iomap"
+.Ft int
+.Fn i386_set_ioperm "u_long *iomap"
+.Sh DESCRIPTION
+.Fn i386_get_ioperm
+copies the current I/O permission bitmap into the memory referenced by
+.Ar iomap .
+.Pp
+.Fn i386_set_ioperm
+sets the I/O permission bitmap from the data pointed to by
+.Ar iomap .
+This call is restricted to the super-user.
+.Sh RETURN VALUES
+Upon successful completion,
+.Fn i386_get_ioperm
+and
+.Fn i386_set_ioperm
+return 0.
+Otherwise, a value of -1 is returned and the global
+variable
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+.Fn i386_get_ioperm
+and
+.Fn i386_set_ioperm
+will fail if:
+.Bl -tag -width [EINVAL]
+.It Bq Er EFAULT
+.Ar Iomap
+points outside the process's allocated address space.
+.It Bq Er EPERM
+The caller was not the super-user.
+.El
+.Sh REFERENCES
+i386 Microprocessor Programmer's Reference Manual, Intel
diff --git a/lib/libarch/i386/i386_get_ioperm.c b/lib/libarch/i386/i386_get_ioperm.c
new file mode 100644
index 00000000000..b794b06dcbd
--- /dev/null
+++ b/lib/libarch/i386/i386_get_ioperm.c
@@ -0,0 +1,46 @@
+/*	$NetBSD: i386_get_ioperm.c,v 1.1 1995/10/15 02:29:10 mycroft Exp $	*/
+
+/*
+ * Copyright (c) 1995 Charles M. Hannum.  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 Charles M. Hannum.
+ * 4. 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.
+ */
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <machine/sysarch.h>
+
+int
+i386_get_ioperm(iomap)
+	u_long *iomap;
+{
+	struct i386_get_ioperm_args p;
+
+	p.iomap = iomap;
+
+	return sysarch(I386_GET_IOPERM, (char *)&p);
+}
diff --git a/lib/libarch/i386/i386_get_ldt.2 b/lib/libarch/i386/i386_get_ldt.2
new file mode 100644
index 00000000000..8a9fd362cb7
--- /dev/null
+++ b/lib/libarch/i386/i386_get_ldt.2
@@ -0,0 +1,98 @@
+.\" Copyright (c) 1980, 1991 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: @(#)fork.2	6.5 (Berkeley) 3/10/91
+.\"	$Id: i386_get_ldt.2,v 1.1 1995/10/18 08:41:19 deraadt Exp $
+.\"
+.Dd September 20, 1993
+.Dt I386_GET_LDT 2
+.Os NetBSD
+.Sh NAME
+.Nm i386_get_ldt ,
+.Nm i386_set_ldt
+.Nd manage i386 per-process Local Descriptor Table entries
+.Sh SYNOPSIS
+.Fd #include <machine/segments.h>
+.Fd #include <machine/sysarch.h>
+.Ft int
+.Fn i386_get_ldt "int start_sel" "union descriptor *descs" "int num_sels"
+.Ft int
+.Fn i386_set_ldt "int start_sel" "union descriptor *descs" "int num_sels"
+.Sh DESCRIPTION
+.Fn i386_get_ldt
+will return the list of i386 descriptors that the process has in its
+LDT.
+.Fn i386_set_ldt
+will set a list of i386 descriptors for the current process in its
+LDT.
+Both routines accept a starting selector number
+.Fa start_sel
+, an array of memory that
+will contain the descriptors to be set or returned 
+.Fa descs
+, and the number of entries to set or return
+.Fa num_sels .
+.Pp
+The argument
+.Fa descs
+can be either segment_descriptor or gate_descriptor and are defined in
+.Fd <i386/segements.h> .
+These structures are defined by the architecure
+as disjoint bit-fields, so care must be taken in constructing them.
+.Sh RETURN VALUES
+Upon successful completion,
+.Fn i386_get_ldt
+returns the number of descriptors currently in the LDT.
+.Fn i386_set_ldt
+returns the first selector set.
+Otherwise, a value of -1 is returned and the global
+variable
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+.Fn i386_get_ldt
+and
+.Fn i386_set_ldt
+will fail if:
+.Bl -tag -width [EINVAL]
+.It Bq Er EINVAL
+An inappropriate parameter was used for
+.Fa start_sel
+or
+.Fa num_sels .
+.It Bq Er EACESS
+The caller attempted to use a descriptor that would
+circumvent protection or cause a failure.
+.El
+.Sh REFERENCES
+i386 Microprocessor Programmer's Reference Manual, Intel
+.Sh WARNING
+You can really hose your process using this.
diff --git a/lib/libarch/i386/i386_get_ldt.c b/lib/libarch/i386/i386_get_ldt.c
new file mode 100644
index 00000000000..a6fccc1eb14
--- /dev/null
+++ b/lib/libarch/i386/i386_get_ldt.c
@@ -0,0 +1,49 @@
+/*
+ *  Copyright (c) 1993 John Brezak
+ *  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. 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.
+ * 
+ */
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <machine/segments.h>
+#include <machine/sysarch.h>
+
+int
+i386_get_ldt(start, desc, num)
+	int start;
+	union descriptor *desc;
+	int num;
+{
+	struct i386_get_ldt_args p;
+
+	p.start = start;
+	p.desc = desc;
+	p.num = num;
+
+	return sysarch(I386_GET_LDT, (char *)&p);
+}
diff --git a/lib/libarch/i386/i386_iopl.2 b/lib/libarch/i386/i386_iopl.2
new file mode 100644
index 00000000000..5bc72ef77eb
--- /dev/null
+++ b/lib/libarch/i386/i386_iopl.2
@@ -0,0 +1,66 @@
+.\" Copyright (c) 1980, 1991 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: @(#)fork.2	6.5 (Berkeley) 3/10/91
+.\"	$Id: i386_iopl.2,v 1.1 1995/10/18 08:41:19 deraadt Exp $
+.\"
+.Dd October 14, 1995
+.Dt I386_IOPL 2
+.Os NetBSD
+.Sh NAME
+.Nm i386_iopl
+.Nd change the i386 I/O privilege level
+.Sh SYNOPSIS
+.Fd #include <machine/sysarch.h>
+.Ft int
+.Fn i386_iopl "int iopl"
+.Sh DESCRIPTION
+.Fn i386_iopl
+sets the i386 I/O privilege level to the value specified by
+.Ar iomap .
+This call is restricted to the super-user.
+.Sh RETURN VALUES
+Upon successful completion,
+.Fn i386_iopl
+returns 0.
+Otherwise, a value of -1 is returned and the global
+variable
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+.Fn i386_iopl
+will fail if:
+.Bl -tag -width [EINVAL]
+.It Bq Er EPERM
+The caller was not the super-user.
+.El
+.Sh REFERENCES
+i386 Microprocessor Programmer's Reference Manual, Intel
diff --git a/lib/libarch/i386/i386_iopl.c b/lib/libarch/i386/i386_iopl.c
new file mode 100644
index 00000000000..22be4a9a328
--- /dev/null
+++ b/lib/libarch/i386/i386_iopl.c
@@ -0,0 +1,46 @@
+/*	$NetBSD: i386_iopl.c,v 1.1 1995/10/15 02:29:12 mycroft Exp $	*/
+
+/*
+ * Copyright (c) 1995 Charles M. Hannum.  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 Charles M. Hannum.
+ * 4. 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.
+ */
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <machine/sysarch.h>
+
+int
+i386_iopl(iopl)
+	int iopl;
+{
+	struct i386_iopl_args p;
+
+	p.iopl = iopl;
+
+	return sysarch(I386_IOPL, (char *)&p);
+}
diff --git a/lib/libarch/i386/i386_set_ioperm.c b/lib/libarch/i386/i386_set_ioperm.c
new file mode 100644
index 00000000000..d1976f4a078
--- /dev/null
+++ b/lib/libarch/i386/i386_set_ioperm.c
@@ -0,0 +1,46 @@
+/*	$NetBSD: i386_set_ioperm.c,v 1.1 1995/10/15 02:29:13 mycroft Exp $	*/
+
+/*
+ * Copyright (c) 1995 Charles M. Hannum.  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 Charles M. Hannum.
+ * 4. 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.
+ */
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <machine/sysarch.h>
+
+int
+i386_set_ioperm(iomap)
+	u_long *iomap;
+{
+	struct i386_set_ioperm_args p;
+
+	p.iomap = iomap;
+
+	return sysarch(I386_SET_IOPERM, (char *)&p);
+}
diff --git a/lib/libarch/i386/i386_set_ldt.c b/lib/libarch/i386/i386_set_ldt.c
new file mode 100644
index 00000000000..25bc1f328d3
--- /dev/null
+++ b/lib/libarch/i386/i386_set_ldt.c
@@ -0,0 +1,49 @@
+/*
+ *  Copyright (c) 1993 John Brezak
+ *  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. 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.
+ * 
+ */
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <machine/segments.h>
+#include <machine/sysarch.h>
+
+int
+i386_set_ldt(start, desc, num)
+	int start;
+	union descriptor *desc;
+	int num;
+{
+	struct i386_set_ldt_args p;
+
+	p.start = start;
+	p.desc = desc;
+	p.num = num;
+
+	return sysarch(I386_SET_LDT, (char *)&p);
+}
diff --git a/lib/libarch/shlib_version b/lib/libarch/shlib_version
new file mode 100644
index 00000000000..97c9f92d6b8
--- /dev/null
+++ b/lib/libarch/shlib_version
@@ -0,0 +1,2 @@
+major=0
+minor=0