add procfs support

sys/arch/usermode/conf/GENERIC

@@ -1,9 +1,9 @@
-# $NetBSD: GENERIC,v 1.12 2011/08/23 12:27:01 jmcneill Exp $
+# $NetBSD: GENERIC,v 1.13 2011/08/24 10:59:10 jmcneill Exp $
 
 include "arch/usermode/conf/std.usermode"
 
 options 	INCLUDE_CONFIG_FILE
-#ident 		"GENERIC-$Revision: 1.12 $"
+#ident 		"GENERIC-$Revision: 1.13 $"
 maxusers 	32
 
 makeoptions	DEBUG="-O1 -g3"
@@ -29,6 +29,7 @@ options 	COMPAT_50
 file-system	FFS
 file-system	FDESC
 file-system	KERNFS
+file-system	PROCFS
 file-system	TMPFS
 
 options 	INET

sys/arch/usermode/conf/files.usermode

@@ -1,4 +1,4 @@
-# $NetBSD: files.usermode,v 1.4 2011/08/12 12:59:13 jmcneill Exp $
+# $NetBSD: files.usermode,v 1.5 2011/08/24 10:59:10 jmcneill Exp $
 
 maxpartitions 8
 maxusers 8 16 64
@@ -30,6 +30,7 @@ file	arch/usermode/usermode/copy.c
 file	arch/usermode/usermode/machdep.c
 file	arch/usermode/usermode/pmap.c
 file	arch/usermode/usermode/process_machdep.c
+file	arch/usermode/usermode/procfs_machdep.c	procfs
 file	arch/usermode/usermode/sys_machdep.c
 file	arch/usermode/usermode/syscall.c
 file	arch/usermode/usermode/trap.c

sys/arch/usermode/include/ptrace.h

@@ -1,4 +1,4 @@
-/* $NetBSD: ptrace.h,v 1.3 2009/10/21 16:06:59 snj Exp $ */
+/* $NetBSD: ptrace.h,v 1.4 2011/08/24 10:59:10 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2007 Jared D. McNeill <jmcneill@invisible.ca>
@@ -31,5 +31,6 @@
 
 #include </usr/include/machine/ptrace.h>
 #undef __HAVE_PTRACE_MACHDEP
+#undef __HAVE_PROCFS_MACHDEP
 
 #endif /* !_ARCH_USERMODE_INCLUDE_PTRACE_H */

sys/arch/usermode/usermode/procfs_machdep.c

@@ -0,0 +1,42 @@
+/* $NetBSD: procfs_machdep.c,v 1.1 2011/08/24 10:59:37 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2011 Jared D. McNeill <jmcneill@invisible.ca>
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: procfs_machdep.c,v 1.1 2011/08/24 10:59:37 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+
+#include <miscfs/procfs/procfs.h>
+
+int
+procfs_getcpuinfstr(char *bf, int *len)
+{
+	*len = 0;
+	return 0;
+}