diff --git a/meta/classes/image-swab.bbclass b/meta/classes/image-swab.bbclass
new file mode 100644
index 0000000..8931856
--- /dev/null
+++ b/meta/classes/image-swab.bbclass
@@ -0,0 +1,94 @@
+HOST_DATA ?= "${TMPDIR}/host-contamination-data/"
+SWABBER_REPORT ?= "${LOG_DIR}/swabber/"
+SWABBER_LOGS ?= "${LOG_DIR}/contamination-logs"
+TRACE_LOGDIR ?= "${SWABBER_LOGS}/${PACKAGE_ARCH}"
+TRACE_LOGFILE = "${TRACE_LOGDIR}/${PN}-${PV}"
+
+SWAB_ORIG_TASK := "${BB_DEFAULT_TASK}"
+BB_DEFAULT_TASK = "generate_swabber_report"
+
+# Several recipes don't build with parallel make when run under strace
+# Ideally these should be fixed but as a temporary measure disable parallel
+# builds for troublesome recipes
+PARALLEL_MAKE_pn-openssl = ""
+PARALLEL_MAKE_pn-glibc = ""
+PARALLEL_MAKE_pn-glib-2.0 = ""
+PARALLEL_MAKE_pn-libxml2 = ""
+PARALLEL_MAKE_pn-readline = ""
+PARALLEL_MAKE_pn-util-linux = ""
+PARALLEL_MAKE_pn-binutils = ""
+PARALLEL_MAKE_pn-bison = ""
+PARALLEL_MAKE_pn-cmake = ""
+PARALLEL_MAKE_pn-elfutils = ""
+PARALLEL_MAKE_pn-gcc = ""
+PARALLEL_MAKE_pn-gcc-runtime = ""
+PARALLEL_MAKE_pn-m4 = ""
+PARALLEL_MAKE_pn-opkg = ""
+PARALLEL_MAKE_pn-pkgconfig = ""
+PARALLEL_MAKE_pn-prelink = ""
+PARALLEL_MAKE_pn-rpm = ""
+PARALLEL_MAKE_pn-tcl = ""
+PARALLEL_MAKE_pn-beecrypt = ""
+PARALLEL_MAKE_pn-curl = ""
+PARALLEL_MAKE_pn-gmp = ""
+PARALLEL_MAKE_pn-libmpc = ""
+PARALLEL_MAKE_pn-libxslt = ""
+PARALLEL_MAKE_pn-lzo = ""
+PARALLEL_MAKE_pn-popt = ""
+PARALLEL_MAKE_pn-linux-wrs = ""
+PARALLEL_MAKE_pn-libgcrypt = ""
+PARALLEL_MAKE_pn-gpgme = ""
+PARALLEL_MAKE_pn-udev = ""
+PARALLEL_MAKE_pn-gnutls = ""
+
+python() {
+    # NOTE: It might be useful to detect host infection on native and cross
+    # packages but as it turns out to be pretty hard to do this for all native
+    # and cross packages which aren't swabber-native or one of its dependencies
+    # I have ignored them for now...
+    if not bb.data.inherits_class('native', d) and not bb.data.inherits_class('nativesdk', d) and not bb.data.inherits_class('cross', d):
+        deps = (d.getVarFlag('do_setscene', 'depends') or "").split()
+        deps.append('strace-native:do_populate_sysroot')
+        d.setVarFlag('do_setscene', 'depends', " ".join(deps))
+        logdir = d.expand("${TRACE_LOGDIR}")
+        bb.utils.mkdirhier(logdir)
+    else:
+        d.setVar('STRACEFUNC', '')
+}
+
+STRACEPID = "${@os.getpid()}"
+STRACEFUNC = "imageswab_attachstrace"
+
+do_configure[prefuncs] += "${STRACEFUNC}"
+do_compile[prefuncs] += "${STRACEFUNC}"
+
+imageswab_attachstrace () {
+	STRACE=`which strace`
+
+	if [ -x "$STRACE" ]; then
+		swabber-strace-attach "$STRACE -f -o ${TRACE_LOGFILE}-${BB_CURRENTTASK}.log -e trace=open,execve -p ${STRACEPID}" "${TRACE_LOGFILE}-traceattach-${BB_CURRENTTASK}.log"
+	fi
+}
+
+do_generate_swabber_report () {
+
+	update_distro ${HOST_DATA}
+
+	# Swabber can't create the directory for us
+	mkdir -p ${SWABBER_REPORT}
+
+	REPORTSTAMP=${SWAB_ORIG_TASK}-`date +%2m%2d%2H%2M%Y`
+
+	if [ `which ccache` ] ; then
+		CCACHE_DIR=`( ccache -s | grep "cache directory" | grep -o '[^ ]*$' 2> /dev/null )`
+ 	fi
+
+	if [ "$(ls -A ${HOST_DATA})" ]; then
+		echo "Generating swabber report"
+		swabber -d ${HOST_DATA} -l ${SWABBER_LOGS} -o ${SWABBER_REPORT}/report-${REPORTSTAMP}.txt -r ${SWABBER_REPORT}/extra_report-${REPORTSTAMP}.txt -c all -p ${TOPDIR} -f ${OEROOT}/meta/conf/swabber ${TOPDIR} ${OEROOT} ${CCACHE_DIR}
+	else
+		echo "No host data, cannot generate swabber report."
+	fi
+}
+addtask generate_swabber_report after do_${SWAB_ORIG_TASK}
+do_generate_swabber_report[depends] = "swabber-native:do_populate_sysroot"