openvswitch-2.13.0.patch

diff --git a/.ci/linux-build.sh b/.ci/linux-build.sh
new file mode 100755
index 0000000000..b22ad95310
--- /dev/null
+++ b/.ci/linux-build.sh
@@ -0,0 +1,244 @@
+#!/bin/bash
+
+set -o errexit
+set -x
+
+CFLAGS_FOR_OVS="-g -O2"
+SPARSE_FLAGS=""
+EXTRA_OPTS="--enable-Werror"
+TARGET="x86_64-native-linuxapp-gcc"
+
+function install_kernel()
+{
+    if [[ "$1" =~ ^5.* ]]; then
+        PREFIX="v5.x"
+    elif [[ "$1" =~ ^4.* ]]; then
+        PREFIX="v4.x"
+    elif [[ "$1" =~ ^3.* ]]; then
+        PREFIX="v3.x"
+    else
+        PREFIX="v2.6/longterm/v2.6.32"
+    fi
+
+    base_url="https://cdn.kernel.org/pub/linux/kernel/${PREFIX}"
+    # Download page with list of all available kernel versions.
+    wget ${base_url}/
+    # Uncompress in case server returned gzipped page.
+    (file index* | grep ASCII) || (mv index* index.new.gz && gunzip index*)
+    # Get version of the latest stable release.
+    hi_ver=$(echo ${1} | sed 's/\./\\\./')
+    lo_ver=$(cat ./index* | grep -P -o "${hi_ver}\.[0-9]+" | \
+             sed 's/.*\..*\.\(.*\)/\1/' | sort -h | tail -1)
+    version="${1}.${lo_ver}"
+
+    rm -rf index* linux-*
+
+    url="${base_url}/linux-${version}.tar.xz"
+    # Download kernel sources. Try direct link on CDN failure.
+    wget ${url} ||
+    (rm -f linux-${version}.tar.xz && wget ${url}) ||
+    (rm -f linux-${version}.tar.xz && wget ${url/cdn/www})
+
+    tar xvf linux-${version}.tar.xz > /dev/null
+    pushd linux-${version}
+    make allmodconfig
+
+    # Cannot use CONFIG_KCOV: -fsanitize-coverage=trace-pc is not supported by compiler
+    sed -i 's/CONFIG_KCOV=y/CONFIG_KCOV=n/' .config
+
+    # stack validation depends on tools/objtool, but objtool does not compile on travis.
+    # It is giving following error.
+    #  >>> GEN      arch/x86/insn/inat-tables.c
+    #  >>> Semantic error at 40: Unknown imm opnd: AL
+    # So for now disable stack-validation for the build.
+
+    sed -i 's/CONFIG_STACK_VALIDATION=y/CONFIG_STACK_VALIDATION=n/' .config
+    make oldconfig
+
+    # Older kernels do not include openvswitch
+    if [ -d "net/openvswitch" ]; then
+        make net/openvswitch/
+    else
+        make net/bridge/
+    fi
+
+    if [ "$AFXDP" ]; then
+        sudo make headers_install INSTALL_HDR_PATH=/usr
+        pushd tools/lib/bpf/
+        # Bulding with gcc because there are some issues in make files
+        # that breaks building libbpf with clang on Travis.
+        CC=gcc sudo make install
+        CC=gcc sudo make install_headers
+        sudo ldconfig
+        popd
+        # The Linux kernel defines __always_inline in stddef.h (283d7573), and
+        # sys/cdefs.h tries to re-define it.  Older libc-dev package in xenial
+        # doesn't have a fix for this issue.  Applying it manually.
+        sudo sed -i '/^# define __always_inline .*/i # undef __always_inline' \
+                    /usr/include/x86_64-linux-gnu/sys/cdefs.h || true
+        EXTRA_OPTS="${EXTRA_OPTS} --enable-afxdp"
+    else
+        EXTRA_OPTS="${EXTRA_OPTS} --with-linux=$(pwd)"
+        echo "Installed kernel source in $(pwd)"
+    fi
+    popd
+}
+
+function install_dpdk()
+{
+    local DPDK_VER=$1
+    local VERSION_FILE="dpdk-dir/travis-dpdk-cache-version"
+
+    if [ "${DPDK_VER##refs/*/}" != "${DPDK_VER}" ]; then
+        # Avoid using cache for git tree build.
+        rm -rf dpdk-dir
+
+        DPDK_GIT=${DPDK_GIT:-https://dpdk.org/git/dpdk}
+        git clone --single-branch $DPDK_GIT dpdk-dir -b "${DPDK_VER##refs/*/}"
+        pushd dpdk-dir
+        git log -1 --oneline
+    else
+        if [ -f "${VERSION_FILE}" ]; then
+            VER=$(cat ${VERSION_FILE})
+            if [ "${VER}" = "${DPDK_VER}" ]; then
+                EXTRA_OPTS="${EXTRA_OPTS} --with-dpdk=$(pwd)/dpdk-dir/build"
+                echo "Found cached DPDK ${VER} build in $(pwd)/dpdk-dir"
+                return
+            fi
+        fi
+        # No cache or version mismatch.
+        rm -rf dpdk-dir
+        wget https://fast.dpdk.org/rel/dpdk-$1.tar.xz
+        tar xvf dpdk-$1.tar.xz > /dev/null
+        DIR_NAME=$(tar -tf dpdk-$1.tar.xz | head -1 | cut -f1 -d"/")
+        mv ${DIR_NAME} dpdk-dir
+        pushd dpdk-dir
+    fi
+
+    make config CC=gcc T=$TARGET
+
+    if [ "$DPDK_SHARED" ]; then
+        sed -i '/CONFIG_RTE_BUILD_SHARED_LIB=n/s/=n/=y/' build/.config
+        export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$(pwd)/$TARGET/lib
+    fi
+
+    # Disable building DPDK kernel modules. Not needed for OVS build or tests.
+    sed -i '/CONFIG_RTE_EAL_IGB_UIO=y/s/=y/=n/' build/.config
+    sed -i '/CONFIG_RTE_KNI_KMOD=y/s/=y/=n/' build/.config
+
+    # Enable pdump support in DPDK.
+    sed -i '/CONFIG_RTE_LIBRTE_PMD_PCAP=n/s/=n/=y/' build/.config
+    sed -i '/CONFIG_RTE_LIBRTE_PDUMP=n/s/=n/=y/' build/.config
+
+    # Switching to 'default' machine to make dpdk-dir cache usable on different
+    # CPUs.  We can't be sure that all CI machines are exactly same.
+    sed -i '/CONFIG_RTE_MACHINE="native"/s/="native"/="default"/' build/.config
+
+    make -j4 CC=gcc EXTRA_CFLAGS='-fPIC'
+    EXTRA_OPTS="$EXTRA_OPTS --with-dpdk=$(pwd)/build"
+    echo "Installed DPDK source in $(pwd)"
+    popd
+    echo "${DPDK_VER}" > ${VERSION_FILE}
+}
+
+function configure_ovs()
+{
+    ./boot.sh
+    ./configure CFLAGS="${CFLAGS_FOR_OVS}" $* || { cat config.log; exit 1; }
+}
+
+function build_ovs()
+{
+    local KERNEL=$1
+
+    configure_ovs $OPTS
+    make selinux-policy
+
+    # Only build datapath if we are testing kernel w/o running testsuite and
+    # AF_XDP support.
+    if [ "${KERNEL}" ] && ! [ "$AFXDP" ]; then
+        pushd datapath
+        make -j4
+        popd
+    else
+        make -j4 || { cat config.log; exit 1; }
+    fi
+}
+
+if [ "$DEB_PACKAGE" ]; then
+    mk-build-deps --install --root-cmd sudo --remove debian/control
+    dpkg-checkbuilddeps
+    DEB_BUILD_OPTIONS='parallel=4 nocheck' fakeroot debian/rules binary
+    # Not trying to install ipsec package as there are issues with system-wide
+    # installed python3-openvswitch package and the pyenv used by Travis.
+    packages=$(ls $(pwd)/../*.deb | grep -v ipsec)
+    sudo apt install ${packages}
+    exit 0
+fi
+
+if [ "$KERNEL" ]; then
+    install_kernel $KERNEL
+fi
+
+if [ "$DPDK" ] || [ "$DPDK_SHARED" ]; then
+    if [ -z "$DPDK_VER" ]; then
+        DPDK_VER="19.11.8"
+    fi
+    install_dpdk $DPDK_VER
+    # Enable pdump support in OVS.
+    EXTRA_OPTS="${EXTRA_OPTS} --enable-dpdk-pdump"
+    if [ "$CC" = "clang" ]; then
+        # Disregard cast alignment errors until DPDK is fixed
+        CFLAGS_FOR_OVS="${CFLAGS_FOR_OVS} -Wno-cast-align"
+    fi
+fi