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#!/bin/sh

# multigen,v 1.4 2000/09/12 12:50:02 joel Exp

version=0.1

verbose=0

target=

custom=0

config=0

usage()

{

program=`basename $0`

cat << EOF

$program generates RTEMS custom/*.cfgs and config-files for gcc multilib

variants a target's gcc supports

Usage: $program [options]

Options:

        --target=STRING         target

        --custom                generate make/custom/*.cfg files

        --config                generate config scripts

        --rtems=DIR             use DIR as location of RTEMS source tree

        -v, --verbose           verbose

        -h, --help              Print this usage

        --version               Print version and exit

Examples:

$program --config --target=sh-rtems --rtems=/usr/src/rtems-4.5.0

        Generates config scripts for all possible bare BSPs from all

        valid multilib variants sh-rtems-gcc supports

$program --custom --target=sh-rtems --rtems=/usr/src/rtems-4.5.0

        Generates /usr/src/rtems-4.5.0/make/custom/*.cfg files

        for all possible bare BSPs from the multilib variants

        sh-rtems-gcc supports

Written by Ralf Corsepius 

EOF

}

while test $# -gt 0; do

  case "$1" in

  --rtems=*)

    rtems_srcdir=`echo "$1" | sed -e 's%--rtems=\(.*\)%\1%g'`

    ;;

  --target=*)

    target=`echo "$1" | sed -e 's%--target=\(.*\)%\1%g'`

    ;;

  -v|--verbose)

    verbose=1

    ;;

  --custom)

    custom=1

    ;;

  --config)

    config=1

    ;;

  --version)

    echo `basename $0` version $version

    exit 0

    ;;

  -h|--help)

    usage

    exit 1

    ;;

  *)

    echo "unknown option $1"

    usage

    exit 1

    ;;

  esac

  shift

done

if test $# -gt 0; then

  echo "Invalid number of arguments"

  exit 1

fi

if test x$target = x; then

  echo "Missing required option:"

  echo "        --target"

  exit 1

fi

if test x$rtems_srcdir = x; then

  echo "Missing required option:"

  echo "        --rtems"

  exit 1

fi

if test $config -eq 0 && test $custom -eq 0; then

  echo "Missing required option:"

  echo "        --config"

  echo "        --custom"

  echo " (At least one of these is required)"

  exit 1

fi

if test ! -r $rtems_srcdir/VERSION; then

  echo "Can't find rtems"

  echo "Check value passed to --rtems="

  exit 1

fi

if test x$target != x ;then

target_prefix=$target-

fi

# Check for CC

saved_IFS=$IFS; IFS=":"

for i in $PATH; do

  if test -f $i/${target_prefix}gcc; then

    CC=$i/${target_prefix}gcc

    break

  fi

done

IFS=$saved_IFS

if test x$CC = x; then

  echo "No valid gcc found"

  exit 1

fi

test $verbose -gt 0 && echo "Using $CC"

for i in `${CC} --print-multi-lib 2>/dev/null`; do

  dir=`echo $i | sed -e 's/;.*$//'`

  case $dir in

  .) f=$target

     flags=""

     ;;

  *) f=`echo $target-$dir | sed -e 's%\/%-%g'`

     flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`

     ;;

  esac

  if test $config -gt 0; then

    cfg="rtems-config.$f"

    test $verbose -gt 0 && echo "Generating: $cfg"

cat << EOF > $cfg

#!/bin/sh

${rtems_srcdir}/configure --target=$target \\

'--enable-bare-cpu-cflags=$flags' \\

--enable-rtemsbsp="bare" \\

--enable-bare-cpu-model=NONE \\

--disable-networking \\

--disable-tests \\

--enable-maintainer-mode

EOF

    chmod +x $cfg

  fi

  if test $custom -gt 0; then

    cfg=${rtems_srcdir}/make/custom/bare-$f.cfg

    test $verbose -gt 0 && echo "Generating: $cfg"

cat << EOF > $cfg

#  Config file for the bare-$f BSP

BARE_CPU_CFLAGS=$flags

BARE_CPU_MODEL=NONE

include \$(RTEMS_ROOT)/make/custom/bare.cfg

EOF

  fi

done

exit 0