# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
+# Parameters
+arch=${arch:-}
+cross_arch=${cross_arch:-}
+ktag=${ktag:-}
+
+
+## FUNCTIONS ##
+
# Kernel version compare functions
verlte() {
- [ "$1" = "`printf '%s\n%s' $1 $2 | sort -V | head -n1`" ]
+ [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | head -n1)" ]
}
verlt() {
- [ "$1" = "$2" ] && return 1 || verlte $1 $2
+ [ "$1" = "$2" ] && return 1 || verlte "$1" "$2"
}
vergte() {
- [ "$1" = "`printf '%s\n%s' $1 $2 | sort -V | tail -n1`" ]
+ [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | tail -n1)" ]
}
vergt() {
- [ "$1" = "$2" ] && return 1 || vergte $1 $2
+ [ "$1" = "$2" ] && return 1 || vergte "$1" "$2"
+}
+
+
+prepare_lnx_sources() {
+
+ outdir=$1
+
+ if [ "$outdir" = "." ]; then
+ koutput=""
+ else
+ koutput="O=${outdir}"
+ fi
+
+ # Generate kernel configuration
+ case "$ktag" in
+ Ubuntu*)
+ if [ "${cross_arch}" = "powerpc" ]; then
+ if vergte "$KVERSION" "4.10"; then
+ echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it."
+ exit 0
+ fi
+ fi
+ fakeroot debian/rules clean
+ fakeroot debian/rules genconfigs
+ cp CONFIGS/"${ubuntu_config}" "${outdir}"/.config
+ ;;
+ *)
+ # Que sera sera
+ make "${vanilla_config}" CC="$CC" ${koutput}
+ ;;
+ esac
+
+ # GCC 4.8
+ sed -i "s/CONFIG_CC_STACKPROTECTOR_STRONG=y/# CONFIG_CC_STACKPROTECTOR_STRONG is not set/g" "${outdir}"/.config
+
+ # Don't try to sign modules
+ sed -i "s/CONFIG_MODULE_SIG=y/# CONFIG_MODULE_SIG is not set/g" "${outdir}"/.config
+
+ # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails
+ sed -i "s/CONFIG_STACK_VALIDATION=y/# CONFIG_STACK_VALIDATION is not set/g" "${outdir}"/.config
+
+ # Set required options
+ {
+ echo "CONFIG_KPROBES=y";
+ echo "CONFIG_FTRACE=y";
+ echo "CONFIG_BLK_DEV_IO_TRACE=y";
+ echo "CONFIG_TRACEPOINTS=y";
+ echo "CONFIG_KALLSYMS_ALL=y";
+ } >> "${outdir}"/.config
+
+
+ make "$oldconf_target" CC="$CC" ${koutput}
+ make modules_prepare CC="$CC" ${koutput}
+
+ # Debug
+ #cat "${outdir}"/.config
+
+ # On powerpc this object is required to link modules
+ if [ "${karch}" = "powerpc" ]; then
+ make arch/powerpc/lib/crtsavres.o CC="$CC" ${koutput}
+ fi
+
+ # On arm64 this object is required to build with ftrace support
+ if [ "${karch}" = "arm64" ]; then
+ if vergte "$KVERSION" "4.13-rc1"; then
+ make arch/arm64/kernel/ftrace-mod.o CC="$CC" ${koutput}
+ fi
+ fi
+
+ # Version specific tasks
+ case "$ktag" in
+ Ubuntu*)
+ # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code
+ ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')"
+ echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${outdir}"/include/generated/utsrelease.h
+ ;;
+ esac
+}
+
+
+
+build_modules() {
+
+ kdir="$1"
+ bdir="$2"
+
+ # Enter lttng-modules source dir
+ cd "${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 CC="$CC"
+
+ # We expect this build to fail, if it doesn't, fail the job.
+ if [ "$?" -eq 0 ]; then
+ echo "This build should have failed."
+ 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." > "${bdir}/BROKEN.txt.ko"
+
+ set -e
+
+ KERNELDIR="${kdir}" make clean CC="$CC"
+
+ else # Regular build
+
+ # Build modules against full kernel sources
+ KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC"
+
+ # Install modules to build dir
+ KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${bdir}" modules_install CC="$CC"
+
+ # Clean build dir
+ KERNELDIR="${kdir}" make clean CC="$CC"
+ fi
}
+
+## MAIN ##
+
# Use all CPU cores
NPROC=$(nproc)
-SRCDIR="${WORKSPACE}/lttng-modules"
-BUILDDIR="${WORKSPACE}/build"
-LNXSRCDIR="${WORKSPACE}/linux"
-LNXBUILDDIR="${WORKSPACE}/linux-build"
+LTTSRCDIR="${WORKSPACE}/src/lttng-modules"
+LNXSRCDIR="${WORKSPACE}/src/linux"
-# Create build directory
-mkdir -p "${BUILDDIR}" "${LNXBUILDDIR}"
+LNXBUILDDIR="${WORKSPACE}/build/linux"
+LNXHDRDIR="${WORKSPACE}/build/linux-headers"
-# Enter linux source dir
-cd "${LNXSRCDIR}"
+LTTBUILDKSRCDIR="${WORKSPACE}/build/lttng-modules-ksrc"
+LTTBUILDKHDRDIR="${WORKSPACE}/build/lttng-modules-khdr"
+
+
+# Setup cross compile env if available
+if [ "x${cross_arch}" != "x" ]; then
+
+ case "$cross_arch" in
+ "armhf")
+ karch="arm"
+ cross_compile="arm-linux-gnueabihf-"
+ vanilla_config="allyesconfig"
+ ubuntu_config="armhf-config.flavour.generic"
+ ;;
+
+ "arm64")
+ karch="arm64"
+ cross_compile="aarch64-linux-gnu-"
+ vanilla_config="allyesconfig"
+ ubuntu_config="arm64-config.flavour.generic"
+ ;;
+
+ "powerpc")
+ karch="powerpc"
+ cross_compile="powerpc-linux-gnu-"
+ vanilla_config="ppc44x_defconfig"
+ ubuntu_config="powerpc-config.flavour.powerpc-smp"
+ ;;
+
+ "ppc64el")
+ karch="powerpc"
+ cross_compile="powerpc64le-linux-gnu-"
+ vanilla_config="pseries_le_defconfig"
+ ubuntu_config="ppc64el-config.flavour.generic"
+ ;;
-# Prepare linux sources for modules OOT build
-make O="${LNXBUILDDIR}" defconfig
+ *)
+ echo "Unsupported cross arch $cross_arch"
+ exit 1
+ ;;
+ esac
-# Enable CONFIG_KALLSYMS_ALL
-sed -i "s/# CONFIG_KALLSYMS_ALL is not set/CONFIG_KALLSYMS_ALL=y/g" "${LNXBUILDDIR}"/.config
+ # Use gcc 4.9, older kernel don't build with gcc 5
+ CC="${cross_compile}gcc-4.9"
-# Build to out of tree dir
-make O="${LNXBUILDDIR}" modules_prepare
+ # Export variables used by Kbuild for cross compilation
+ export ARCH="${karch}"
+ export CROSS_COMPILE="${cross_compile}"
-case "$kversion" in
- Ubuntu*)
- #fakeroot debian/rules clean
- #fakeroot debian/rules genconfigs
- #cp CONFIGS/amd64-config.flavour.generic .config
+ oldconf_target="olddefconfig"
- # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code
- ABINUM=$(echo $kversion | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')
- echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> ${LNXBUILDDIR}/include/generated/utsrelease.h
- ;;
-esac
+# Set arch specific values if we are not cross compiling
+elif [ "x${arch}" != "x" ]; then
+
+ case "$arch" in
+ "x86-32")
+ karch="x86"
+ vanilla_config="allyesconfig"
+ ubuntu_config="i386-config.flavour.generic"
+ ;;
+
+ "x86-64")
+ karch="x86"
+ vanilla_config="allyesconfig"
+ ubuntu_config="amd64-config.flavour.generic"
+ ;;
+
+ "armhf")
+ karch="arm"
+ vanilla_config="allyesconfig"
+ ubuntu_config="armhf-config.flavour.generic"
+ ;;
+
+ "arm64")
+ karch="arm64"
+ vanilla_config="allyesconfig"
+ ubuntu_config="arm64-config.flavour.generic"
+ ;;
+
+ "powerpc")
+ karch="powerpc"
+ vanilla_config="allyesconfig"
+ ubuntu_config="powerpc-config.flavour.powerpc-smp"
+ ;;
+
+ "ppc64el")
+ karch="powerpc"
+ vanilla_config="allyesconfig"
+ ubuntu_config="ppc64el-config.flavour.generic"
+ ;;
+
+ *)
+ echo "Unsupported arch $arch"
+ exit 1
+ ;;
+ esac
+
+ # Use gcc 4.9, older kernel don't build with gcc 5
+ CC=gcc-4.9
+
+ oldconf_target="silentoldconfig"
+
+else
+ echo "Not arch or cross_arch specified"
+ exit 1
+fi
+
+
+
+
+# Create build directories
+mkdir -p "${LNXBUILDDIR}" "${LNXHDRDIR}" "${LTTBUILDKSRCDIR}" "${LTTBUILDKHDRDIR}"
+
+
+
+## PREPARE DISTRO STYLE KERNEL HEADERS / DEVEL
+
+# Enter linux source dir
+cd "${LNXSRCDIR}"
# Get kernel version from source tree
-cd "${LNXBUILDDIR}"
KVERSION=$(make kernelversion)
-# Enter source dir
-cd "${SRCDIR}"
+prepare_lnx_sources "."
+
+# For RT kernels, copy version file
+if [ -s localversion-rt ]; then
+ cp -a localversion-rt "${LNXHDRDIR}"
+fi
+
+# Copy all Makefile related stuff
+find . -path './include/*' -prune \
+ -o -path './scripts/*' -prune -o -type f \
+ \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \
+ -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \
+ -print | cpio -pd --preserve-modification-time "${LNXHDRDIR}"
+
+# Copy base scripts and include dirs
+cp -a scripts include "${LNXHDRDIR}"
-# 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
+# Copy arch includes
+(find arch -name include -type d -print0 | \
+ xargs -0 -n1 -i: find : -type f) | \
+ cpio -pd --preserve-modification-time "${LNXHDRDIR}"
- set +e
+# Copy arch scripts
+(find arch -name scripts -type d -print0 | \
+ xargs -0 -n1 -i: find : -type f) | \
+ cpio -pd --preserve-modification-time "${LNXHDRDIR}"
- # Build modules
- KERNELDIR="${LNXBUILDDIR}" make -j${NPROC} V=1
+# Cleanup scripts
+rm -f "${LNXHDRDIR}/scripts/*.o"
+rm -f "${LNXHDRDIR}/scripts/*/*.o"
- # We expect this build to fail, if it doesn't, fail the job.
- if [ "$?" -eq 0 ]; then
- exit 1
+# On powerpc this object is required to link modules
+if [ "${karch}" = "powerpc" ]; then
+ cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LNXHDRDIR}/"
+fi
+
+# On arm64 this object is required to build with ftrace support
+if [ "${karch}" = "arm64" ]; then
+ if vergte "$KVERSION" "4.13-rc1"; then
+ cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LNXHDRDIR}/"
fi
+fi
+
+# Copy modules related stuff, if available
+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 "${LNXHDRDIR}"
+fi
+
+# Copy config file
+cp .config "${LNXHDRDIR}"
+
+# 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"
- # 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." > "${BUILDDIR}/BROKEN.txt"
+# Copy .config to include/config/auto.conf so "make prepare" is unnecessary.
+cp "${LNXHDRDIR}/.config" "${LNXHDRDIR}/include/config/auto.conf"
- set -e
-else # Regular build
- # Build modules
- KERNELDIR="${LNXBUILDDIR}" make -j${NPROC} V=1
- # Install modules to build dir
- KERNELDIR="${LNXBUILDDIR}" make INSTALL_MOD_PATH="${BUILDDIR}" modules_install
+## PREPARE FULL LINUX SOURCE TREE
+
+# Enter linux source dir
+cd "${LNXSRCDIR}"
+
+# Make sure linux source dir is clean
+git clean -xdf
+
+prepare_lnx_sources "${LNXBUILDDIR}"
+
+
+## BUILD modules
+
+# Build modules against full kernel sources
+build_modules "${LNXBUILDDIR}" "${LTTBUILDKSRCDIR}"
+
+# Build modules against kernel headers
+build_modules "${LNXHDRDIR}" "${LTTBUILDKHDRDIR}"
+
+# Make sure modules were built
+tree "${LTTBUILDKSRCDIR}"
+if [ "x$(find "${LTTBUILDKSRCDIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
+ echo "No modules built!"
+ exit 1
+fi
+
+tree "${LTTBUILDKHDRDIR}"
+if [ "x$(find "${LTTBUILDKHDRDIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
+ echo "No modules built!"
+ exit 1
fi
# EOF
projects / lttng-ci.git / blobdiff