#! /bin/sh
#
#  Generate all the specs and then cycle through building them.
#

RTEMS_DIR=`dirname $0`
CFG=./setup.cache
#dst=/usr/src/redhat/SPECS
dst=`pwd`
target=@target@
rpm_cpu=i386

usage()
{
  echo "$0 [options] <target_alias>"
  echo "  options:"
  echo "    -b                  -- build binutils"
  echo "    -g                  -- build gcc/newlib"
  echo "    -d                  -- build gdb"
  echo "    -C HOST             -- build canadian cross for HOST "
  echo "    -t                  -- enable test/debug mode"
  echo "    -cfg <setup.cache>"
  echo "    -o <rpm-spec-dir>"
  exit 1 ;
}

#   
#  Checks the status returned by executables and exits if it is non-zero.
#
check_fatal()
{
  if [ $1 -ne 0 ] ; then
    shift
    echo "ERROR: $*" >&2
    exit 1
  fi
  #echo
  #echo "End of $*"
  #echo -n "Press return to continue> "
  #echo
  #read line
}

testing=no
do_binutils=no
do_gccnewlib=no
do_gdb=no
cdn_cross=no

while test $# -ge 1; do
  case $1 in
    -b) do_binutils=yes  ; shift;;
    -g) do_gccnewlib=yes ; shift;; 
    -d) do_gdb=yes       ; shift;; 
    -t) do_test=yes      ; shift;; 
    -cfg)
      test $# -ge 2 || usage
      shift
      CFG=$1
      shift
      ;;
    -o)
      test $# -ge 2 || usage
      shift
      dst=$1
      shift
      ;;
    -C)
      test $# -ge 2 || usage
      shift
      build=$1
      shift
      if ! test -x ${RTEMS_DIR}/../config.guess ; then
        echo "Missing ${RTEMS_DIR}/../config.guess!"
        exit 1
      fi
      CDN_ARGS="--build=`${RTEMS_DIR}/../config.guess` --host=${build}"
      cdn_cross=yes
      ;;
    -*)
      echo "invalid option $1";
      usage
      ;;
    *)
      TARGETS="${TARGETS} $1"
      shift
      ;;
  esac
done

if test ${do_binutils} = no -a ${do_gccnewlib} = no -a ${do_gdb} = no ; then
  echo "You must request building binutils, gcc/newlib, or gdb."
  usage
fi


# This is the full list .. hppa1.1 does not build now.
#ALL_TARGETS="hppa1.1-rtems i386-rtems i960-rtems m68k-rtems \
#  m68k-rtemself mips-rtems mips64orion-rtems \
#  powerpc-rtems sh-rtems sh-rtemself sparc-rtems"

# This is the full buildable set.
if [ "X${TARGETS}" = "X" ] ; then
  # do not include c4x or hppa primary targets
  # do not include sh-elf or i960-elf secondary targets
  TARGETS="arm-rtems h8300-rtems i386-rtems i960-rtems m68k-rtems \
    mips-rtems mips64orion-rtems powerpc-rtems sh-rtems sparc-rtems"
fi

. $CFG

binutils=${binutils_version}
gcc=${gcc_version}
gdb=${gdb_version}
newlib=${newlib_version}
# also use binutils_rpm_release
buildroot=/tmp

#
#  Now get started
#
start=`date`

echo PATH=$PATH

if [ ${testing} = yes ] ; then
  ECHO=echo
fi

#installed_count=`rpm -q -g rtems | wc -l`
#if [ ${installed_count} -ne 0 ] ; then
#  echo This script should be run with NO rtems RPMs installed.
#  echo It appears that the following rtems RPMs are installed:
#  echo
#  rpm -qa | grep rtems
#  echo
#  echo Please remove these and restart this script.
#  exit 1
#fi

#echo Copying specs files.
#if [ ${testing} = no ] ; then
#  cd ${RTEMS_DIR}
#  
#  # ./configure || exit 1
#  make        || exit 1
#
#  #  Now generate all the specs
#  for target in ${TARGETS}
#  do
#    tspecs=`find . -name "${target}*"`
#    if [ "X${tspecs}" = "X" ] ; then
#      echo RPM specifications were not generated for ${tspec}.
#      exit 1
#    fi
#    ${ECHO} cp -r ${tspecs} ${dst}
#  done
#fi

# clean up a bit before we start
cd ${dst}
test -d log || mkdir log

if [ "X${rpm_build_root}" = "X" ] ; then
  echo rpm_build_root NOT set!
  exit 1
fi

CWD=`pwd`
test -d tarballs || mkdir tarballs

OUT=${CWD}/tarballs

#  do all the tools
for target in ${TARGETS}
do
  bintarfile=${OUT}/${target}-binutils-${binutils}-${binutils_rpm_release}.tar
  if [ ${do_binutils} = yes ] ; then
    logfile=${CWD}/log/${target}-binutils
    # this part is for tar.bz2
    cd ${CWD}
    if [ ! -d binutils-${binutils} ] ; then
      echo Could not find binutils-${binutils}!
      exit 1
    fi
    rm -rf b-${target}-bin
    mkdir b-${target}-bin
    cd b-${target}-bin
    echo "Building binutils-${binutils} for ${target}"
    ../binutils-${binutils}/configure ${CDN_ARGS} --target=${target} \
      --verbose --prefix=/opt/rtems   >${logfile} 2>&1
    check_fatal $? "binutils configure"

    make all >>${logfile} 2>&1
    check_fatal $? "make all"

    make info >>${logfile} 2>&1
    check_fatal $? "make info"

    make prefix=${rpm_build_root}/opt/rtems install >>${logfile} 2>&1
    check_fatal $? "make install"

    make prefix=${rpm_build_root}/opt/rtems install-info >>${logfile} 2>&1
    check_fatal $? "make install-info"

    cd ${buildroot}
    tar cjf ${bintarfile}.bz2 opt
    cd ${CWD}
    rm -rf b-${target}-bin
    ${ECHO} rm -rf ${rpm_build_root}/opt
    #rm -rf ${rpm_build_root}/opt
  else
    echo Skipping binutils for ${target}
  fi

  #
  #  build gcc/newlib
  #

  if [ ${do_gccnewlib} = yes ] ; then
    logfile=${CWD}/log/${target}-gccnewlib
    # now build gcc/newlib
    # this part is for tar.bz2

    gcctarfile=${OUT}/${target}-gcc-${gcc}-newlib-${newlib}-${gccnewlib_rpm_release}.tar
    if [ ${cdn_cross} = "no" ] ; then
      bintarfile=${dst}/binaries/binutils-${binutils}-${binutils_rpm_release}/${target}-binutils-${binutils}-${binutils_rpm_release}.tar
      cd /
      rm -rf /opt/*
      tar xjf ${bintarfile}.bz2
    fi

    cd ${CWD}
    if [ ! -d gcc-${gcc} ] ; then
      echo Could not find gcc-${gcc}!
      exit 1
    fi
    if [ ! -d gcc-${gcc}/newlib ] ; then
      echo Could not find gcc-${gcc}/newlib!
      exit 1
    fi
    rm -rf b-${target}-gccnewlib
    mkdir b-${target}-gccnewlib
    cd b-${target}-gccnewlib
    echo "Building gcc-${gcc} for ${target}"
    ../gcc-${gcc}/configure ${CDN_ARGS} --target=${target} \
      --with-gnu-as --with-gnu-ld --with-newlib --verbose --enable-threads \
      --prefix=/opt/rtems '--enable-languages=c,c++' >${logfile} 2>&1
    check_fatal $? "gcc configure"

    make all >>${logfile} 2>&1
    check_fatal $? "make all"

    make info >>${logfile} 2>&1
    check_fatal $? "make info"

    make prefix=${rpm_build_root}/opt/rtems install >>${logfile} 2>&1
    check_fatal $? "make install"

    cd ${target}/newlib
    make prefix=${rpm_build_root}/opt/rtems install-info  >>${logfile} 2>&1
    check_fatal $? "newlib make install-info"

    cd ${buildroot}
    tar cjf ${gcctarfile}.bz2 opt
    cd ${CWD}
    rm -rf ${rpm_build_root}/opt
    rm -rf ${rpm_build_root}/opt/rtems
    rm -rf b-${target}-gccnewlib
  else
    echo Skipping gcc/newlib for ${target}
  fi

  #
  # build gdb
  #

  if [ ${do_gdb} = yes ] ; then
    # now build gdb
    gdbtarfile=${OUT}/${target}-gdb-${gdb}-${gdb_rpm_release}.tar
    logfile=${CWD}/log/${target}-gdb

    # this part is for tar.bz2
    
    if [ ! -d gdb-${gdb} ] ; then
      echo Could not find gdb-${gdb}!
      exit 1
    fi
    mkdir b-${target}-gdb
    cd b-${target}-gdb
    case ${target} in
      arm* | d10v* | d30v* | erc32* | fr30* | h8300* | h8500* | i960* | \
      m32r* | mcore* | mips* | mn10200* | mn10300* | sh* | sparc*| v850* | \
      w65* | z8k*)
        extra_configure_arguments="--enable-sim"
        ;;
     powerpc*)
        extra_configure_arguments="--enable-sim --enable-sim-powerpc --enable-sim-timebase --enable-sim-hardware"
        #  Enabling this causes the program image to be huge and causes
        #  some gcc/hosts combinations to run out of memory.
        #          --enable-sim-inline
        ;;
      *)
        ;;
esac 
    echo "Building gdb-${gdb}/configure ${CDN_ARGS} --target=${target}"
    ../gdb-${gdb}/configure ${CDN_ARGS} --target=${target} \
      ${extra_configure_arguments} --verbose --prefix=/opt/rtems >${logfile} 2>&1
    check_fatal $? "make info"

    make all >>${logfile} 2>&1
    check_fatal $? "make all"

    make info >>${logfile} 2>&1
    check_fatal $? "make info"

    make prefix=${rpm_build_root}/opt/rtems install >>${logfile} 2>&1
    check_fatal $? "make install"

    make prefix=${rpm_build_root}/opt/rtems install-info >>${logfile} 2>&1
    check_fatal $? "make install-info"

    cd ${buildroot}
    tar cjf ${gdbtarfile}.bz2 opt
    cd ${CWD}
    ${ECHO} rm -rf ${rpm_build_root}/opt
    rm -rf ${rpm_build_root}/opt/rtems
    rm -rf b-${target}-gdb
  else
    echo Skipping gdb for ${target}
  fi

done

# Now we are done

stop=`date`

echo
echo "Started:  " $start
echo "Finished: " $stop
exit 0