#!/bin/sh
#
# Copyright (C) 2007 Alexander Leidinger <netchild@FreeBSD.org>.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
# The purpose of this script is to find as much dependencies of a binary
# as possible. A dependecy is for example a library which is directly
# referenced in the binary.
#
# XXX: it doesn't handle calls to dlopen() or the corresponding libltdl
# function. I don't know if this is needed to detect references to stuff
# which can be added as LIB_DEPENDS.
if [ -z "$1" ]; then
echo "Usage: $0 binary_file ..."
exit 2
fi
for i in "$@"; do
kind=$(file -bi "$i")
case "${kind}" in
application/x-executable*|application/x-sharedlib*)
# ok, fall through
;;
*)
# not ok, go to next one
shift
continue
;;
esac
objdump -x "$i" | awk '/NEEDED/ {print $2}'
shift
done | sort -u
