#!/bin/bash
#    BCU SDK bcu development enviroment
#    Copyright (C) 2005-2007 Martin Koegler <mkoegler@auto.tuwien.ac.at>
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

version="@VERSION@"
BCUGEN=@BINDIR@/bcugen2
EXTRACT=@BINDIR@/extractprogid
LIB=@LIBDIR@
SINC=@INCDIR@
LD=@LDDIR@
TGCC=@TGCC@
TLD=@TLD@
TAR=@TAR@
TAS=@TAS@

set -e

progname="`basename \"$0\"`"

usage()
{
cat >&2 <<END
$progname $version Copyright 2005-2007 Martin Koegler <mkoegler@auto.tuwien.ac.at>
creates a bcu image

Usage: $progname [options] config_desc
Options:
	-Dxx	uses xxx as temorary directory and keep temporary files there 
		(warning: all content can be lost)
	-cxxx   uses xxx as program id
        -ixxx   stores image as xxx (default:config_desc.load)

END
exit 1
}

function error()
{
if [ $keep != 1 ]; then
	rm -r $TMP
fi
exit 1
}

CONF=
keep=0
TMP=
OUT=

while [ $# != 0 ]
do
        value="`echo x\"$1\" | sed -e 's/^x-.//'`"
        case "$1" in
	-D*) keep=1; TMP="$value" ;;
	-c*) CONF="$value" ;;
	-i*) OUT="$value" ;;
	
        -*) echo "$progname: unknown option $1"
            usage;;
	*) break;;
        esac
        shift
done

if [ $# != 1 ]; then
	echo "$progname: expect config_desc"
	usage
fi

IN="$1"

if [ ! -f "$IN" ]; then
	echo "$progname: $IN not found"
	exit 1 
fi

if [ "x$OUT" == "x" ]; then
	OUT="$IN.load"
fi

if [ "x$TMP" == "x" ]; then
	TMP=`mktemp -u bcusdk.XXXXXXXXXX`||exit 1
	mkdir $TMP
elif [ ! -e "$TMP" ]; then
	mkdir $TMP
fi

if [ ! -d $TMP ]; then
	echo "can not create directory $TMP"
	exit 1
fi

TMP=`(cd $TMP; pwd)`

if [ $keep != 1 ]; then
	trap "rm -r $TMP; exit 1" 1 2 3 5 10 13 15
fi

if [ "x$CONF" == "x" ]; then
	$EXTRACT "$IN" "$TMP/cf" || error

else
	cp "$CONF" "$TMP/cf" || error
fi

pushd "$TMP" >/dev/null || error
$TAR x cf bcusdk-version || error

if [ "x`cat bcusdk-version`" == "x0.0.0" ]; then
$TAR x cf config || error
$TAR x cf c.inc || error
else
echo "Unsupported Formatversion: `cat bcusdk-version`"
error
fi

popd >/dev/null || error

$BCUGEN "$TMP/config" "$IN" "$TMP/c.h" "$TMP/p1.s" "$TMP/p.var" || error

VAR=`cat "$TMP/p.var"`

if [ ! -f "$LIB/lib$VAR.a" ]; then
echo "unknown variant $VAR"
error
fi

echo "#include \"c.h\"">"$TMP/c.c"
echo "#include \"c.inc\"">>"$TMP/c.c"

$TGCC -c -O3 -Os -Wall -Winline -gstabs -I$SINC -o "$TMP/c.o" "$TMP/c.c" || error
$TAS -I$SINC -o "$TMP/p1.o" "$TMP/p1.s" || error

$TLD -Map "$TMP/elf.map" -N -T "$LD/$VAR.link" --move-sections --relax -o "$TMP/elf" "$TMP/c.o" "$TMP/p1.o" -\( -lc -lm `$TGCC -print-libgcc-file-name` "$LIB/lib$VAR.a" -\) || error
$TLD -Map "$TMP/load.map" -T $LD/genload.link -o "$TMP/load" "$TMP/elf" || error


cp "$TMP/load" "$OUT" || error

if [ $keep != 1 ]; then
	rm -r "$TMP"
fi
echo "Done"
exit 0