# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
+## FUNCTIONS ##
+
# Kernel version compare functions
verlte() {
[ "$1" = "`printf '%s\n%s' $1 $2 | sort -V | head -n1`" ]
[ "$1" = "$2" ] && return 1 || vergte $1 $2
}
+
+build_modules() {
+
+ kdir="$1"
+ bdir="$2"
+
+ # Get kernel version from source tree
+ cd "${kdir}"
+ kversion=$(make kernelversion)
+
+ # Enter lttng-modules source dir
+ cd "${LTTSRCDIR}"
+
+ # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the
+ # timekeeping subsystem. We want those build to fail.
+ if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \
+ { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then
+
+ set +e
+
+ # Build modules
+ KERNELDIR="${kdir}" make -j${NPROC} V=1
+
+ # We expect this build to fail, if it doesn't, fail the job.
+ if [ "$?" -eq 0 ]; then
+ exit 1
+ fi
+
+ # We have to publish at least one file or the build will fail
+ echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${bdir}/BROKEN.txt"
+
+ set -e
+
+ else # Regular build
+
+ # Build modules against full kernel sources
+ KERNELDIR="${kdir}" make -j${NPROC} V=1
+
+ # Install modules to build dir
+ KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${bdir}" modules_install
+
+ # Clean build dir
+ KERNELDIR="${kdir}" make clean
+ fi
+}
+
+
+## MAIN ##
+
# Use all CPU cores
NPROC=$(nproc)
-SRCDIR="${WORKSPACE}/lttng-modules"
-BUILDDIR="${WORKSPACE}/build"
-LNXSRCDIR="${WORKSPACE}/linux"
-LNXBUILDDIR="${WORKSPACE}/linux-build"
+LTTSRCDIR="${WORKSPACE}/src/lttng-modules"
+LNXSRCDIR="${WORKSPACE}/src/linux"
+
+LNXBUILDDIR="${WORKSPACE}/build/linux"
+LNXHDRDIR="${WORKSPACE}/build/linux-headers"
+
+LTTBUILKSRCDDIR="${WORKSPACE}/build/lttng-modules-ksrc"
+LTTBUILDKHDRDIR="${WORKSPACE}/build/lttng-modules-khdr"
+
+
+# Set arch specific values
+case "$arch" in
+ "x86-32")
+ karch="x86"
+ ;;
+
+ "x86-64")
+ karch="x86"
+ ;;
+
+ "armhf")
+ karch="arm"
+ ;;
+
+ "arm64")
+ karch="arm64"
+ ;;
+
+ "powerpc")
+ karch="powerpc"
+ ;;
+
+ "ppc64|ppc64el")
+ karch="powerpc"
+ ;;
+
+ *)
+ echo "Unsupported arch $arch"
+ exit 1
+ ;;
+esac
+
+
+# Create build directories
+mkdir -p "${LNXBUILDDIR}" "${LNXHDRDIR}"
+
+
+## PREPARE DISTRO STYLE KERNEL HEADERS / DEVEL
+
+# Enter linux source dir
+cd "${LNXSRCDIR}"
+
+# Prepare linux sources for headers install
+make defconfig
-# Create build directory
-mkdir -p "${BUILDDIR}" "${LNXBUILDDIR}"
+# Enable CONFIG_KALLSYMS_ALL
+sed -i "s/# CONFIG_KALLSYMS_ALL is not set/CONFIG_KALLSYMS_ALL=y/g" .config
+
+make modules_prepare
+
+# first copy everything
+cp --parents `find -type f -name "Makefile*" -o -name "Kconfig*"` "${LNXHDRDIR}"
+
+if [ -s Module.symvers ]; then
+ cp Module.symvers "${LNXHDRDIR}"
+fi
+
+if [ -s System.map ]; then
+ cp System.map "${LNXHDRDIR}"
+fi
+
+if [ -s Module.markers ]; then
+ cp Module.markers "${LNXHDRDIR}"
+fi
+
+# then drop all but the needed Makefiles/Kconfig files
+rm -rf "${LNXHDRDIR}/Documentation"
+rm -rf "${LNXHDRDIR}/scripts"
+rm -rf "${LNXHDRDIR}/include"
+
+cp .config "${LNXHDRDIR}"
+cp -a scripts "${LNXHDRDIR}"
+
+if [ -d arch/${karch}/scripts ]; then
+ cp -a arch/${karch}/scripts "${LNXHDRDIR}/arch/${karch}/" || :
+fi
+
+if [ -f arch/${karch}/*lds ]; then
+ cp -a arch/${karch}/*lds "${LNXHDRDIR}/arch/${karch}/" || :
+fi
+
+rm -f "${LNXHDRDIR}/scripts/*.o"
+rm -f "${LNXHDRDIR}/scripts/*/*.o"
+
+if [ "${karch}" = "powerpc" ]; then
+ cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LNXHDRDIR}/"
+fi
+
+if [ -d arch/${karch}/include ]; then
+ cp -a --parents arch/${karch}/include "${LNXHDRDIR}/"
+fi
+
+cp -a include "${LNXHDRDIR}/include"
+
+# Make sure the Makefile and version.h have a matching timestamp so that
+# external modules can be built
+if [ -s "${LNXHDRDIR}/include/generated/uapi/linux/version.h" ]; then
+ touch -r "${LNXHDRDIR}/Makefile" "${LNXHDRDIR}/include/generated/uapi/linux/version.h"
+elif [ -s "${LNXHDRDIR}/include/linux/version.h" ]; then
+ touch -r "${LNXHDRDIR}/Makefile" "${LNXHDRDIR}/include/linux/version.h"
+else
+ echo "Missing version.h"
+ exit 1
+fi
+touch -r "${LNXHDRDIR}/.config" "${LNXHDRDIR}/include/generated/autoconf.h"
+
+# Copy .config to include/config/auto.conf so "make prepare" is unnecessary.
+cp "${LNXHDRDIR}/.config" "${LNXHDRDIR}/include/config/auto.conf"
+
+
+
+
+## PREPARE FULL LINUX SOURCE TREE
# Enter linux source dir
cd "${LNXSRCDIR}"
+# Make sure linux source dir is clean
+make mrproper
+
# Prepare linux sources for modules OOT build
make O="${LNXBUILDDIR}" defconfig
# Enable CONFIG_KALLSYMS_ALL
sed -i "s/# CONFIG_KALLSYMS_ALL is not set/CONFIG_KALLSYMS_ALL=y/g" "${LNXBUILDDIR}"/.config
-# Build to out of tree dir
+# Prepare out of tree dir for modules build
make O="${LNXBUILDDIR}" modules_prepare
+# Version specific tasks
case "$kversion" in
Ubuntu*)
#fakeroot debian/rules clean
;;
esac
-# Get kernel version from source tree
-cd "${LNXBUILDDIR}"
-KVERSION=$(make kernelversion)
-
-# Enter source dir
-cd "${SRCDIR}"
-
-# kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the
-# timekeeping subsystem. We want those build to fail.
-if { vergte "$KVERSION" "3.10" && verlte "$KVERSION" "3.10.13"; } || \
- { vergte "$KVERSION" "3.11" && verlte "$KVERSION" "3.11.2"; }; then
+# Build modules against full kernel sources
+build_modules "${LNXBUILDDIR}" "${LTTBUILKSRCDDIR}"
- set +e
-
- # Build modules
- KERNELDIR="${LNXBUILDDIR}" make -j${NPROC} V=1
-
- # We expect this build to fail, if it doesn't, fail the job.
- if [ "$?" -eq 0 ]; then
- exit 1
- fi
-
- # We have to publish at least one file or the build will fail
- echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${BUILDDIR}/BROKEN.txt"
-
- set -e
-
-else # Regular build
-
- # Build modules
- KERNELDIR="${LNXBUILDDIR}" make -j${NPROC} V=1
-
- # Install modules to build dir
- KERNELDIR="${LNXBUILDDIR}" make INSTALL_MOD_PATH="${BUILDDIR}" modules_install
-fi
+# Build modules against kernel headers
+build_modules "${LNXHDRDIR}" "${LTTBUILDKHDRDIR}"
# EOF
projects / lttng-ci.git / commitdiff
