# vim:expandtab:shiftwidth=4:softtabstop=4:tabstop=4:

# increment this if you have made a change that should force a new kernel
# to build built
#BUILD_GEN=1
#BUILD_GEN=2	# bz19952: remove -lustre tag from kernel RPM names
BUILD_GEN=3	# bz19975 enable the building of src.rpms by default

source ${0%/*}/lbuild-sles

# the location of the ofed-devel-<version>.<arch>.rpm
OFED_DEVEL_LOCATION="$KERNELTREE"

# do we want to rebuild the OFED devel RPM or use the supplied one?
REBUILD_OFED_DEVEL_RPM=${REBUILD_OFED_DEVEL_RPM:-false}

edit_specs() {

    # edit the SPECs with our changes
    local spec
    for spec in $RPMSMPTYPE source; do
        #cp $TOPDIR/SOURCES/kernel-$spec.spec{,.orig}
        sed -i -e "s/^Release:.*/&_${buildid}/" \
               -e "s/^ExclusiveArch:.*/& ppc ppc64/" \
               -e '/^# Apply the patches needed for this architecture\./a\
cp  %_sourcedir/linux-2.6.16-lustre.patch %_builddir/%{name}-%{version}/lustre.patch\
! grep -q lustre.patch %_sourcedir/series.conf && echo -e "\\n\\tlustre.patch" >> %_sourcedir/series.conf' \
               -e "/flavor=\${config/a\
    [ \"\$flavor\" == \"$RPMSMPTYPE\" ] || continue" \
          SOURCES/kernel-${spec}.spec || fatal 1 "Error while editing SOURCES/kernel-${spec}.spec"

        if $KERNEL_LUSTRE_NAMING; then
            # these are all of the changes needed because we change the package names
            # to kernel-lustre-*.  these should all go away when we stop this insanity
            sed -i -e 's/^\(Name:.*kernel-\)\(.*\)/\1lustre-\2/' \
                   -e "/^Provides:  *kernel = /a\
Provides:       kernel-$spec = %{version}-%{release}
" \
                   -e 's/\(.*\)\([^#].*\)fookernel-source/\1\2kernel-lustre-source/g' \
                   -e '/^%build/,/^%changelog/s/kernel-\({*\)source/kernel-\1lustre-source/g' \
              SOURCES/kernel-${spec}.spec || fatal 1 "Error while editing SOURCES/kernel-${spec}.spec"
        fi

    # XXX - a building-on-Ubuntu hack
    if grep -q "Ubuntu" /etc/issue; then
        sed -i -e '/^%_sourcedir\/install-configs %_sourcedir .*/i\
curl ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17/2.6.17-mm1/broken-out/i386-use-c-code-for-current_thread_info.patch | patch -p1' \
               -e 's/^\(BuildRequires: .*\)$/#NOU \1/g' \
               -e 's/%(\(chmod .*\))$/%(bash -c "\1")/' \
               -e 's/ -a 109//' \
          SOURCES/kernel-${spec}.spec || fatal 1 "Error while editing SOURCES/kernel-${spec}.spec"
     fi
    done
}

unpack_linux_devel_rpm-sles10() {
    local callers_rpm="$1"

    # get the Module.symvers out of the kenrel-flavor RPM
    local kernelrpm=${callers_rpm/-source-/-$RPMSMPTYPE-}

    if ! rpm2cpio < "$kernelrpm" | cpio -id ./usr/src/linux-${lnxmaj}${lnxmin}-${lnxrel}-obj/$(resolve_arch $TARGET_ARCH $PATCHLESS true)/$RPMSMPTYPE/Module.symvers ./boot/sym\* > /dev/null 2>&1; then
        return 255
    fi

    # now just sanity check that everything needed to build properly versioned
    # modules is in place
    if [ ! -f usr/src/linux-${lnxmaj}${lnxmin}-${lnxrel}-obj/$(resolve_arch $TARGET_ARCH $PATCHLESS true)/$RPMSMPTYPE/Module.symvers ]; then
        fatal 1 "cannot build kernel modules: the Kernel's Module.symvers is missing."
    fi
    if [ ! -f boot/symsets-${lnxmaj}${lnxmin}-${lnxrel}-$RPMSMPTYPE.tar.gz ]; then
        fatal 1 "cannot build modules: the Kernel's symsets is missing."
    fi

    return 0

}

build_sles_ofed_rpm() {
    local variant="${1:+-$1}"
    local add_spec_edit="$2"

    if $REBUILD_OFED_DEVEL_RPM; then
        #
        # rebuild the $variant rpm
        #

        local SOURCE="${KERNELTREE}/ofed${variant}-${OFED_DEVEL_VERSION}.src.rpm"

        # dirty hack until Novell make the kernel-source location overridable
        # - unpack the src.rpm, patch the .spec and re-pack up the src.rpm
        mkdir -p ofed-rpm/S{PEC,OURCE,RPM}S
        pushd ofed-rpm
        rpm2cpio < $KERNELTREE/ofed${variant}-${OFED_DEVEL_VERSION}.src.rpm | cpio -id
        ed ofed${variant}.spec <<"EOF"
/^%define kver /c
%define kver %(flavors=($(ls %kobjdir/%_target_cpu/)); if test -s %kobjdir/%_target_cpu/${flavors[0]}/include/linux/utsrelease.h ; then LINUXRELEASEHEADER=utsrelease.h; else LINUXRELEASEHEADER=version.h; fi; sed -ne "/^#define UTS_RELEASE/s/.*\\"\\\(.*\\\)-${flavors[0]}\\"$/\\1/p" %kobjdir/%_target_cpu/${flavors[0]}/include/linux/$LINUXRELEASEHEADER)
.
/^		--kernel-version=%kver-$flavor --kernel-sources=\/usr\/src\/linux-obj\/%_target_cpu\/\$flavor/c
		--kernel-version=%kver-$flavor --kernel-sources=%kobjdir/%_target_cpu/$flavor
.
/^     make -C \/usr\/src\/linux-obj\/%_target_cpu\/\$flavor modules_install \\/c
     make -C %kobjdir/%_target_cpu/$flavor modules_install \
.
wq
EOF
        if type -p edit_spec_ofed${variant}; then
            edit_spec_ofed${variant}
        fi

        mv ofed${variant}.spec SPECS
        mv * SOURCES
        mv SOURCES/S{PEC,RPM}S .
        rpmbuild --bs --nodeps --define "_topdir $(pwd)" SPECS/ofed${variant}.spec 2>&1 || return 255
        popd
        mv ofed-rpm/SRPMS/* ${TOPDIR}/SRPMS/
        rm -rf ofed-rpm
        SOURCE="${TOPDIR}/SRPMS/ofed${variant}-${OFED_DEVEL_VERSION}.src.rpm"
        # end of dirty hack

        local targets
        for arch in $BUILD_ARCHS; do
            targets="--target $(resolve_arch $arch $PATCHLESS) $targets"
        done
        if ! $RPMBUILD --rebuild --nodeps $targets \
                                 --define "symsetsdir ${TOPDIR}/reused/boot" \
                                 --define "kobjdir ${LINUXOBJ%/*/*}" \
                                 --define "_tmppath /var/tmp" \
                                 --define "_topdir ${TOPDIR}" \
                      ${SOURCE} 2>&1; then
            return 255
        fi
    fi # $REBUILD_OFED_DEVEL_RPM; then

}

# additional edits need to the ofed spec
edit_spec_ofed() {

        ed ofed.spec <<"EOF"
/^# we assume config.mk and the include files are same for all flavors/a
built_flavors=(%flavors_to_build)
.
/^cp obj\/default\/config\.mk \$RPM_BUILD_ROOT\/%{_prefix}\/src\/kernel-modules-ofed/c
cp obj/${built_flavors[0]}/config.mk $RPM_BUILD_ROOT/%{_prefix}/src/kernel-modules-ofed
.
/^for D in obj\/default\\\\include \$(sed 's@^.*-I\\\${CWD}\/@obj\/default\\\\@' obj\/default\/config.mk); do/c
for D in obj/${built_flavors[0]}\\include $(sed "s@^.*-I\${CWD}/@obj/${built_flavors[0]}\\\@" obj/${built_flavors[0]}/config.mk); do
.
wq
EOF

}

build_ofed-sles10() {
    local outfd=$1

    if [ -z "$outfd" ] || [ $outfd = 1 ]; then
        fatal 1 "You must supply a file descriptor to ${FUNCNAME[0]} and it cannot be 1"
    fi

    if $REBUILD_OFED_DEVEL_RPM; then
        build_sles_ofed_rpm cxgb3-NIC >&${outfd} || return ${PIPESTATUS[0]}
        build_sles_ofed_rpm >&${outfd} || return ${PIPESTATUS[0]}
        OFED_DEVEL_LOCATION="${TOPDIR}/RPMS/$(resolve_arch $TARGET_ARCH $PATCHLESS)"
    fi # $REBUILD_OFED_DEVEL_RPM; then

    # XXX I'm not convinced this belongs in here, but really, this is a
    # temporary hack until we get a base O/S intalled ofed-devel
    local arch=$TARGET_ARCH
    if [ -n "$OFED_VERSION" -a "$OFED_VERSION" = "inkernel" ]; then
        local ofed_devel="${OFED_DEVEL_LOCATION}/ofed-devel-${OFED_DEVEL_VERSION}.$(resolve_arch $TARGET_ARCH $PATCHLESS).rpm"
        if ! rpm2cpio < $ofed_devel | cpio -id; then
            fatal 1 "could not unpack the ofed-devel rpm."
	fi
        echo "$(pwd)/usr/src/kernel-modules-ofed/$(resolve_arch $TARGET_ARCH $PATCHLESS)/$RPMSMPTYPE"
    fi

    return 0

}