#! /bin/bash

# Copyright (C) 2010 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>

#

# 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; version 3 of the License.

#

# 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, see <http://www.gnu.org/licenses/>.

## Usage: dso-fixup <build-root> <libdir> <pattern> <libs>*

BR=$1

LIBDIR=$2

PATTERN=$3

shift 3

for i; do

    echo -n $(basename "$i")' '

    readelf -d $i | sed "\\!(NEEDED).*${PATTERN}!"'s/[^:]\+: \[\(.*\)\]/\1/p;d' | xargs echo -n

    echo " ##"

done | ./depsort | while read lib deps; do

      link=$BR$LIBDIR/${lib%.so.*}.so

      test -L "$link" || {

	echo "bad file '$link'" >&2

	exit 1

      }

      set -- $deps

      test $# -ne 0 || continue

      rm -f $link

      {

	echo '/* GNU ld script */'

	echo -n "INPUT($LIBDIR/$lib"

	d=

	if test "$#" -gt 0; then

	    echo -n " AS_NEEDED("

	    for i; do

		echo -n "$d$LIBDIR/$i"

		d=' '

	    done

	    echo -n ")"

	fi

	echo ")"

      } > "$link"

      chmod 0644 "$link"

done