Use preconf setting for maven and enable global local

[lttng-ci.git] / scripts / lttng-modules / param-build.sh

#!/bin/sh -exu
#
# Copyright (C) 2016 - Michael Jeanson <mjeanson@efficios.com>
#
# 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 3 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/>.

## FUNCTIONS ##

# Kernel version compare functions
verlte() {
    [  "$1" = "`printf '%s\n%s' $1 $2 | sort -V | head -n1`" ]
}

verlt() {
    [ "$1" = "$2" ] && return 1 || verlte $1 $2
}

vergte() {
    [  "$1" = "`printf '%s\n%s' $1 $2 | sort -V | tail -n1`" ]
}

vergt() {
    [ "$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)

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

# 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

# Prepare out of tree dir for modules build
make O="${LNXBUILDDIR}" modules_prepare

# Version specific tasks
case "$kversion" in
  Ubuntu*)
    #fakeroot debian/rules clean
    #fakeroot debian/rules genconfigs
    #cp CONFIGS/amd64-config.flavour.generic .config

    # 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

# Build modules against full kernel sources
build_modules "${LNXBUILDDIR}" "${LTTBUILKSRCDDIR}"

# Build modules against kernel headers
build_modules "${LNXHDRDIR}" "${LTTBUILDKHDRDIR}"

# EOF