#
# mk-images.s390
#
# Copyright (C) 2007  Red Hat, Inc.  All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

collectModuleNames() {
    grep -v "^#" ${KERNELROOT}/lib/modules/${version}/modules.${1} | \
        cut -d ' ' -f 1 | sort | uniq | \
        sed -e 's|\.ko$||g' | \
        tr '\n' ' '
}

expandModuleDeps() {
    MODS="$*"
    DEPS=

    DEPSFILE="$(mktemp ${TMPDIR:-/tmp}/moduledeps.XXXXXX)"
    echo "${MODS}" | tr ' ' '\n' > "${DEPSFILE}"

    cd ${KERNELROOT}

    while [ true ]; do
        beforeCount="$(wc -l "${DEPSFILE}" | cut -d ' ' -f 1)"

        while read module ; do
            modulePath="$(find ${KERNELROOT}/lib/modules/${version} -name "${module}.ko")"
            if [ -z "${modulePath}" ]; then
                echo "ERROR: Missing ${module}.ko on s390" >&2
                continue
            fi

            deps="$(modinfo -F depends ${modulePath})"

            if [ ! -z "${deps}" ]; then
                echo "${deps}" | tr ',' '\n' >> ${DEPSFILE}
            fi
        done < "${DEPSFILE}"

        sort "${DEPSFILE}" | uniq > "${DEPSFILE}.new"
        mv "${DEPSFILE}.new" "${DEPSFILE}"
        afterCount="$(wc -l "${DEPSFILE}" | cut -d ' ' -f 1)"

        if [ ${beforeCount} -eq ${afterCount} ]; then
            break
        fi
    done

    cat "${DEPSFILE}" | tr '\n' ' '
    rm -f "${DEPSFILE}"
}

S390CCWMODS="$(collectModuleNames ccwmap)"
S390NETMODS="$(collectModuleNames networking)"
S390EXTRAMODS="dasd_diag_mod smsgiucv"
S390MODS="$(expandModuleDeps $S390CCWMODS $S390NETMODS $S390EXTRAMODS)"

makeBootImages() {
	makeinitrd --initrdto $TOPDESTPATH/images/initrd.img \
	    --initrdsize 20000 \
	    --loaderbin loader \
	    --modules "$INITRDMODS $S390MODS"
	sz=$(ls -l $TOPDESTPATH/images/initrd.img | awk '{print $5}')
	$GENINITRDSZ $sz $TOPDESTPATH/images/initrd.size
	cp -vf $KERNELROOT/boot/${KERNELNAME}-${version} $TOPDESTPATH/images/kernel.img

	cp -v $BOOTDISKDIR/redhat.exec $TOPDESTPATH/images/redhat.exec
	cp -v $BOOTDISKDIR/generic.prm $TOPDESTPATH/images/generic.prm
	cp -v $BOOTDISKDIR/generic.ins $TOPDESTPATH/generic.ins

   $MKS390CDBOOT \
      -i $TOPDESTPATH/images/kernel.img \
      -r $TOPDESTPATH/images/initrd.img \
      -p $TOPDESTPATH/images/generic.prm \
      -o $TOPDESTPATH/images/cdboot.img

    cat << __EOT__ >> $TOPDESTPATH/.treeinfo
[images-$KERNELARCH]
kernel = images/kernel.img
initrd = images/initrd.img
initrd.size = images/initrd.size
generic.prm = images/generic.prm
generic.ins = generic.ins
cdboot.img = images/cdboot.img

__EOT__
}