mirror of
https://github.com/u-boot/u-boot.git
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Allow for parallel builds and saved output
The MAKEALL script cleverly runs make with the appropriate options
to use all of the cores on the system, but your average U-Boot build
can't make much use of more than a few cores. If you happen to have
a many-core server, your builds will leave most of the system idle.
In order to make full use of such a system, we need to build multiple
targets in parallel, and this requires directing make output into
multiple directories. We add a BUILD_NBUILDS variable, which allows
users to specify how many builds to run in parallel.
When BUILD_NBUILDS is set greater than 1, we redefine BUILD_DIR for
each build to be ${BUILD_DIR}/${target}. Also, we make "./build" the
default BUILD_DIR when BUILD_NBUILDS is greater than 1.
MAKEALL now tracks which builds are still running, and when one
finishes, it starts a new build.
Once each build finishes, we run "make tidy" on its directory, to reduce
the footprint.
As a result, we are left with a build directory with all of the built
targets still there for use, which means anyone who wanted to use
MAKEALL as part of a test harness can now do so.
Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Andy Fleming
Wolfgang Denk
parent
05f132d74d
commit
f588bb034d
137
MAKEALL
137
MAKEALL
@ -34,6 +34,7 @@ usage()
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CROSS_COMPILE cross-compiler toolchain prefix (default: "")
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MAKEALL_LOGDIR output all logs to here (default: ./LOG/)
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BUILD_DIR output build directory (default: ./)
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BUILD_NBUILDS number of parallel targets (default: 1)
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Examples:
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- build all Power Architecture boards:
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@ -178,11 +179,22 @@ else
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LOG_DIR="LOG"
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fi
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if [ ! "${BUILD_DIR}" ] ; then
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BUILD_DIR="."
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: ${BUILD_NBUILDS:=1}
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BUILD_MANY=0
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if [ "${BUILD_NBUILDS}" -gt 1 ] ; then
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BUILD_MANY=1
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: ${BUILD_DIR:=./build}
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mkdir -p "${BUILD_DIR}/ERR"
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find "${BUILD_DIR}/ERR/" -type f -exec rm -f {} +
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fi
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[ -d ${LOG_DIR} ] || mkdir ${LOG_DIR} || exit 1
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: ${BUILD_DIR:=.}
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OUTPUT_PREFIX="${BUILD_DIR}"
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[ -d ${LOG_DIR} ] || mkdir "${LOG_DIR}" || exit 1
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find "${LOG_DIR}/" -type f -exec rm -f {} +
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LIST=""
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@ -190,6 +202,8 @@ LIST=""
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ERR_CNT=0
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ERR_LIST=""
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TOTAL_CNT=0
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CURRENT_CNT=0
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OLDEST_IDX=1
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RC=0
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# Helper funcs for parsing boards.cfg
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@ -592,8 +606,26 @@ list_target() {
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echo ""
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}
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# Each finished build will have a file called ${donep}${n},
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# where n is the index of the build. Each build
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# we've already noted as finished will have ${skipp}${n}.
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# The code managing the build process will use this information
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# to ensure that only BUILD_NBUILDS builds are in flight at once
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donep="${LOG_DIR}/._done_"
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skipp="${LOG_DIR}/._skip_"
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build_target() {
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target=$1
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build_idx=$2
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if [ $BUILD_MANY == 1 ] ; then
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output_dir="${OUTPUT_PREFIX}/${target}"
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mkdir -p "${output_dir}"
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else
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output_dir="${OUTPUT_PREFIX}"
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fi
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export BUILD_DIR="${output_dir}"
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if [ "$ONLY_LIST" == 'y' ] ; then
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list_target ${target}
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@ -603,30 +635,75 @@ build_target() {
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${MAKE} distclean >/dev/null
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${MAKE} -s ${target}_config
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${MAKE} ${JOBS} all 2>&1 >${LOG_DIR}/$target.MAKELOG \
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| tee ${LOG_DIR}/$target.ERR
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${MAKE} ${JOBS} all \
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>${LOG_DIR}/$target.MAKELOG 2> ${LOG_DIR}/$target.ERR
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# Check for 'make' errors
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if [ ${PIPESTATUS[0]} -ne 0 ] ; then
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RC=1
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fi
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if [ -s ${LOG_DIR}/$target.ERR ] ; then
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ERR_CNT=$((ERR_CNT + 1))
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ERR_LIST="${ERR_LIST} $target"
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if [ $BUILD_MANY == 1 ] ; then
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${MAKE} tidy
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if [ -s ${LOG_DIR}/${target}.ERR ] ; then
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touch ${OUTPUT_PREFIX}/ERR/${target}
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else
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rm ${LOG_DIR}/${target}.ERR
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fi
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else
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rm ${LOG_DIR}/$target.ERR
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if [ -s ${LOG_DIR}/${target}.ERR ] ; then
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: $(( ERR_CNT += 1 ))
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ERR_LIST="${ERR_LIST} $target"
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else
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rm ${LOG_DIR}/${target}.ERR
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fi
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fi
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TOTAL_CNT=$((TOTAL_CNT + 1))
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OBJS=${BUILD_DIR}/u-boot
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if [ -e ${BUILD_DIR}/spl/u-boot-spl ]; then
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OBJS="${OBJS} ${BUILD_DIR}/spl/u-boot-spl"
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OBJS=${output_dir}/u-boot
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if [ -e ${output_dir}/spl/u-boot-spl ]; then
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OBJS="${OBJS} ${output_dir}/spl/u-boot-spl"
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fi
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${CROSS_COMPILE}size ${OBJS} | tee -a ${LOG_DIR}/$target.MAKELOG
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[ -e "${LOG_DIR}/${target}.ERR" ] && cat "${LOG_DIR}/${target}.ERR"
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#echo "Writing ${donep}${build_idx}"
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touch "${donep}${build_idx}"
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}
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manage_builds() {
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search_idx=${OLDEST_IDX}
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#echo "Searching ${OLDEST_IDX} to ${TOTAL_CNT}"
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while true; do
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if [ -e "${donep}${search_idx}" ] ; then
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# echo "Found ${donep}${search_idx}"
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: $(( CURRENT_CNT-- ))
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[ ${OLDEST_IDX} -eq ${search_idx} ] &&
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: $(( OLDEST_IDX++ ))
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# Only want to count it once
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rm -f "${donep}${search_idx}"
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touch "${skipp}${search_idx}"
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elif [ -e "${skipp}${search_idx}" ] ; then
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[ ${OLDEST_IDX} -eq ${search_idx} ] &&
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: $(( OLDEST_IDX++ ))
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fi
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#echo "Checking search ${search_idx} vs ${TOTAL_CNT}"
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: $(( search_idx++ ))
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if [ ${search_idx} -gt ${TOTAL_CNT} ] ; then
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#echo "Checking current ${CURRENT_CNT} vs ${BUILD_NBUILDS}"
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if [ ${CURRENT_CNT} -ge ${BUILD_NBUILDS} ] ; then
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search_idx=${OLDEST_IDX}
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sleep 1
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else
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break
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fi
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fi
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done
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}
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build_targets() {
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for t in "$@" ; do
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# If a LIST_xxx var exists, use it. But avoid variable
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@ -639,7 +716,26 @@ build_targets() {
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if [ -n "${list}" ] ; then
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build_targets ${list}
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else
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build_target ${t}
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: $((TOTAL_CNT += 1))
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: $((CURRENT_CNT += 1))
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rm -f "${donep}${TOTAL_CNT}"
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rm -f "${skipp}${TOTAL_CNT}"
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build_target ${t} ${TOTAL_CNT} &
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fi
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# We maintain a running count of all the builds we have done.
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# Each finished build will have a file called ${donep}${n},
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# where n is the index of the build. Each build
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# we've already noted as finished will have ${skipp}${n}.
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# We track the current index via TOTAL_CNT, and the oldest
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# index. When we exceed the maximum number of parallel builds,
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# We look from oldest to current for builds that have completed,
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# and update the current count and oldest index as appropriate.
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# If we've gone through the entire list, wait a second, and
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# reprocess the entire list until we find a build that has
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# completed
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if [ ${CURRENT_CNT} -ge ${BUILD_NBUILDS} ] ; then
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manage_builds
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fi
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done
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}
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@ -648,6 +744,16 @@ build_targets() {
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print_stats() {
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if [ "$ONLY_LIST" == 'y' ] ; then return ; fi
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rm -f ${donep}* ${skipp}*
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if [ $BUILD_MANY == 1 ] && [ -e "${OUTPUT_PREFIX}/ERR" ] ; then
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ERR_LIST=$(ls ${OUTPUT_PREFIX}/ERR/)
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ERR_CNT=`ls -1 ${OUTPUT_PREFIX}/ERR/ | wc | awk '{print $1}'`
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else
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ERR_CNT=0
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fi
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echo ""
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echo "--------------------- SUMMARY ----------------------------"
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echo "Boards compiled: ${TOTAL_CNT}"
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@ -666,3 +772,4 @@ set -- ${SELECTED} "$@"
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# run PowerPC by default
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[ $# = 0 ] && set -- powerpc
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build_targets "$@"
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wait
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