jjb: Update scan-build script

[lttng-ci.git] / scripts / common / scan-build.sh

#!/bin/bash -exu
#
# Copyright (C) 2015 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
# Copyright (C) 2019 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/>.


# do not exit immediately if any command fails
set +e

SRCDIR="$WORKSPACE/src/$PROJECT_NAME"
TMPDIR="$WORKSPACE/tmp"

NPROC=$(nproc)
export CFLAGS="-O0 -g -DDEBUG"

# Directory to archive the scan-build report
SCAN_BUILD_ARCHIVE="${WORKSPACE}/scan-build-archive"

# Create tmp directory
rm -rf "$TMPDIR"
mkdir -p "$TMPDIR"

export TMPDIR

# temp directory to store the scan-build report
SCAN_BUILD_TMPDIR=$( mktemp -d )

case "$PROJECT_NAME" in
babeltrace)
    export BABELTRACE_DEV_MODE=1
    CONF_OPTS="--enable-python-bindings --enable-python-bindings-doc --enable-python-plugins"
    BUILD_TYPE="autotools"
    ;;
liburcu)
    CONF_OPTS=""
    BUILD_TYPE="autotools"
    ;;
lttng-modules)
    CONF_OPTS=""
    BUILD_TYPE="autotools"
    ;;
lttng-tools)
    CONF_OPTS=""
    BUILD_TYPE="autotools"
    ;;
lttng-ust)
    CONF_OPTS="--enable-java-agent-all --enable-python-agent"
    BUILD_TYPE="autotools"
    export CLASSPATH="/usr/share/java/log4j-1.2.jar"
    ;;
linux-rseq)
    CONF_OPTS=""
    BUILD_TYPE="linux-rseq"
    ;;
*)
    echo "Generic project, no configure options."
    CONF_OPTS=""
    BUILD_TYPE="autotools"
    ;;
esac

# liburcu dependency
if [ -d "$WORKSPACE/deps/liburcu" ]; then
  URCU_INCS="$WORKSPACE/deps/liburcu/build/include/"
  URCU_LIBS="$WORKSPACE/deps/liburcu/build/lib/"

  export CPPFLAGS="-I$URCU_INCS ${CPPFLAGS:-}"
  export LDFLAGS="-L$URCU_LIBS ${LDFLAGS:-}"
  export LD_LIBRARY_PATH="$URCU_LIBS:${LD_LIBRARY_PATH:-}"
fi


# lttng-ust dependency
if [ -d "$WORKSPACE/deps/lttng-ust" ]; then
  UST_INCS="$WORKSPACE/deps/lttng-ust/build/include/"
  UST_LIBS="$WORKSPACE/deps/lttng-ust/build/lib/"

  export CPPFLAGS="-I$UST_INCS ${CPPFLAGS:-}"
  export LDFLAGS="-L$UST_LIBS ${LDFLAGS:-}"
  export LD_LIBRARY_PATH="$UST_LIBS:${LD_LIBRARY_PATH:-}"
fi

if [ -d "$WORKSPACE/src/linux" ]; then
	export KERNELDIR="$WORKSPACE/src/linux"
fi

# Enter the source directory
cd "$SRCDIR"

# Build
echo -e "\033[33;1mRunning Coverity Scan Analysis Tool...\033[0m"
case "$BUILD_TYPE" in
autotools)
    # Prepare build dir for autotools based projects
    if [ -f "./bootstrap" ]; then
      ./bootstrap
      ./configure $CONF_OPTS
    fi

    scan-build -k -o "${SCAN_BUILD_TMPDIR}" make -j"$NPROC" V=1
    ;;
linux-rseq)
    make defconfig
    make -j"$NPROC" prepare
    scan-build -k -o "${SCAN_BUILD_TMPDIR}" make -j"$NPROC" kernel/rseq.o kernel/do_on_cpu/core.o kernel/do_on_cpu/interpreter.o kernel/do_on_cpu/validate.o V=1
    ;;
*)
    echo "Unsupported build type: $BUILD_TYPE"
    exit 1
    ;;
esac


# get the directory name of the report created by scan-build
SCAN_BUILD_REPORT=$(find "${SCAN_BUILD_TMPDIR}" -maxdepth 1 -not -empty -not -name "$(basename "${SCAN_BUILD_TMPDIR}")")
rc=$?

if [ -z "${SCAN_BUILD_REPORT}" ]; then
    echo ">>> No new bugs identified."
    echo ">>> No scan-build report has been generated"
else
    echo ">>> New scan-build report generated in ${SCAN_BUILD_REPORT}"

    if [ ! -d "${SCAN_BUILD_ARCHIVE}" ]; then
        echo ">>> Creating scan-build archive directory"
        mkdir "${SCAN_BUILD_ARCHIVE}"
    else
        echo ">>> Removing any previous scan-build reports from ${SCAN_BUILD_ARCHIVE}"
        rm -f "${SCAN_BUILD_ARCHIVE}/*"
    fi

    echo ">>> Archiving scan-build report to ${SCAN_BUILD_ARCHIVE}"
    mv "${SCAN_BUILD_REPORT}"/* "${SCAN_BUILD_ARCHIVE}/"

    echo ">>> Removing any temporary files and directories"
    rm -rf "${SCAN_BUILD_TMPDIR}"
fi

exit ${rc}