#! /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