svn commit: r290356 - user/pho/stress2/tools

[Peter Holm]

Author: pho
Date: Wed Nov  4 09:18:11 2015
New Revision: 290356
URL: https://svnweb.freebsd.org/changeset/base/290356

Log:
  Added tool for loading compressed kernel modules.
  
  Sponsored by:	EMC / Isilon storage division

Added:
  user/pho/stress2/tools/kldload.sh   (contents, props changed)

Added: user/pho/stress2/tools/kldload.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ user/pho/stress2/tools/kldload.sh	Wed Nov  4 09:18:11 2015	(r290356)
@@ -0,0 +1,73 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2015 EMC Corp.
+# 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 AUTHOR 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 AUTHOR 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.
+#
+# $FreeBSD$
+#
+
+# Add support for kldload(8) of compressed modules.
+
+[ $# -ne 1 ] && echo "Usage: $0 <module>" && exit 1
+
+# If possible avoid using a temporary file due to kgdb.
+kldstat | grep -q $1 && exit 0
+kldload $1 2>/dev/null && exit 0
+
+module=`echo $1 | sed 's/\.ko//'`
+paths=`sysctl -n kern.module_path`
+
+: ${TMPDIR:=/tmp}
+tmpkld=$(mktemp $TMPDIR/$module.XXXXXX) || exit
+trap "rm -f $tmpkld" EXIT INT TERM
+IFS=';'
+for path in $paths; do
+	kld_base=$path/$module.ko
+	for ext in "" .gz .bz2 .xz; do
+		kld=$kld_base$ext
+		[ -s $kld ] || continue
+		case "$kld" in
+		*.gz)
+		    gzcat $kld
+		    ;;
+		*.bz2)
+		    bzcat $kld
+		    ;;
+		*.xz)
+		    xzcat $kld
+		    ;;
+		*)
+		    cat $kld
+		;;
+		esac > $tmpkld
+		[ $? -eq 0 ] && break
+		rm -f $tmpkld
+	done
+	[ -s $tmpkld ] && kldload $tmpkld; ec=$?
+	[ $ec -eq 0 ] && break
+done
+
+[ $ec -ne 0 ] && echo "Could not kldload $kld_base*"
+exit $ec