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#! /bin/sh
#
#  PARALLEL - Test build all the tool configurations
#
#  Requires GNU parallel to be installed
#
#  TODO:
#    + command line for dry-run enable/di
#    + specify list of targets to build
#    + add ssh support for spreading builds across multiple computers
#

#  Checks the status returned by executables and exits if it is non-zero.
check_fatal()
{
  if [ $1 -eq 0 ] ; then
    return
  fi
  shift
  echo "ERROR: $*" >&2
  exit $?
}

vfile=`dirname $0`/../VERSIONS
if [ ! -r ${vfile} ] ; then
  echo VERSIONS file not found
  exit 1
fi

source ${vfile}

if [ ! -d ${BASEDIR} ] ; then
  echo Have you set the BASEDIR in VERSIONS correctly?
  exit 1
fi

for d in ${AUTOCONF} ${AUTOMAKE} ${BINUTILSDIR} \
    ${GDBDIR} ${NEWLIBDIR} ${GCCDIR}
do
  if [ ! -d ${d} ] ; then
    check_fatal 1 "Cannot locate ${d} -- aborting"
  fi
done

toggle()
{
  case $1 in
    no)  echo "yes" ;;
    yes) echo "no" ;;
    *)   fatal "Unknown value to toggle ($1)" ;;
  esac
}

parallel --version 2>&1 | grep "GNU Parallel" >/dev/null
check_fatal $? "GNU parallel is not installed"

usage()
{
cat <<EOF
parallel_tools [options]
  -v   - verbose (default=yes)
  -d   - dry-run (default=no)
  -p   - do preparation steps (default=no)
  -t   - do tool building steps (default=no)
  -j N - jobs in parallel (default=number of cores)
  When building the tools, the following options apply:
    -T - run the tools (default=no)
    -c - clean on exit (default=no)
EOF
}

dryrun=""
verbose=yes
do_dryrun=no
do_tests=no
do_cleanOnExit=no
do_cleanInstallPoint=no
do_prep=no
do_tools=no
jobs=NOT_SET

while getopts cdCTtpj:v OPT
do
  case "$OPT" in
    c) do_cleanOnExit=`toggle ${do_cleanOnExit}` ;;
    C) do_cleanInstallPoint=`toggle ${do_cleanInstallPoint}` ;;
    d) do_dryrun=`toggle ${do_dryrun}` ;;
    j) jobs="${OPTARG}" ;;
    p) do_prep=`toggle ${do_prep}` ;;
    t) do_tools=`toggle ${do_tools}` ;;
    T) do_tests=`toggle ${do_tests}` ;;
    v) verbose=`toggle ${verbose}` ;;
    *) usage ; exit 0 ;;
  esac
done

# Validate number of jobs
JOBS=
if [ ${jobs} != "NOT_SET" ] ; then
  case ${jobs} in
    NOT_SET)
      JOBS=""
      ;;
    ''|*[!0-9]*)
      check_fatal 1 "Number of jobs (${jobs}) specified is not a number"
      ;;
    *)
      JOBS="-j ${jobs}"
      ;;
  esac
fi

if [ ${verbose} = "yes" ] ; then
  echo "Clean Install Point:  " ${do_cleanInstallPoint}
  echo "Do Preparation Steps: " ${do_prep}
  echo "Parallel Jobs:        " ${jobs}
  echo "Build Tools:          " ${do_tools}
  echo "  Run Tool Tests:     " ${do_tests}
  echo "  Clean On OK Build:  " ${do_cleanOnExit}
  echo "Dry Run:              " ${do_dryrun}
  echo "Verbose:              " ${verbose}
fi

if [ ${do_dryrun} = "yes" ] ; then
  dryrun="--dry-run"
fi

shiftcount=`expr $OPTIND - 1`
shift $shiftcount

args=$*

# XXX down select set of CPUs based on arguments

#### Preparation
if [ ${do_prep} = "yes" ] ; then
  test ${verbose} = "yes" && echo "*** Performing Tool Build Preparation Steps"

  if [ ${do_cleanInstallPoint} = "yes" ] ; then
    rm -rf ${INSTALL}
    mkdir ${INSTALL}
  fi

  # Autoconf and automake must be installed before we bootstrap RTEMS
  cd ${BASEDIR}/${AUTOCONF} && \
    (./configure --prefix=${INSTALL} && make && make install) \
      >${LOGDIR}/autoconf.log 2>&1
  check_fatal ${status} "*** Failed to build and install ${AUTOCONF}"

  cd ${BASEDIR}/${AUTOMAKE} && \
    (./configure --prefix=${INSTALL} && make && make install) \
      >${LOGDIR}/autoconf.log 2>&1
  check_fatal ${status} "*** Failed to build and install ${AUTOMAKE}"

  # We can bootstrap RTEMS and build a native compiler in parallel
  parallel --verbose ${JOBS} ${dryrun} <<EOF
(cd ${RTEMSDIR} && ./bootstrap -c && ./bootstrap) >${LOGDIR}/bootstrap.log 2>&1
${SCRIPTDIR}/gcc/do_one -n 
EOF

  status=$?
  check_fatal ${status} "*** ${status} steps failed during preparation phase"
fi

start=`date`

#### Tool Building
if [ ${do_tools} = "yes" ] ; then
  test ${verbose} = "yes" && echo "*** Building Tools"

  args=""
  if [ ${do_tests} = "yes" ] ; then
    args="${args} -T"
  fi
  echo "  Clean On OK Build:  " ${do_cleanOnExit}
  if [ ${do_cleanOnExit} = "yes" ] ; then
    args="${args} -d"
  fi

  parallel --verbose ${JOBS} ${dryrun} <<EOF
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} arm edb7312
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} avr avrtest
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} bfin eZKit533
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} h8300
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} i386 pc386
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} lm32 lm32_evr
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} m32c m32csim
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} m32r
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} m68k uC5282
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} mips jmr3904
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} powerpc psim
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} sh simsh1
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} sparc sis
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} sparc64 niagara
${BASEDIR}/rtems-testing/gcc/do_one  -B1 -A ${args} v850 v850sim
EOF

  # XXX Enhance to run multiple tests using multiple BSPs  
  # ${BASEDIR}/rtems-testing/gcc/do_one         -T i386 pc386dx
  status=$?
  echo "*** ${status} targets failed during tool build phase"
fi

stopped=`date`
echo Started at: ${start}
echo Stopped at: ${stopped}
exit 0