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#! /bin/sh
# -*- Mode: Sh -*-
# checklibs.sh ---
# Author : Manoj Srivastava ( srivasta@glaurung.internal.golden-gryphon.com )
# Created On : Fri Sep 29 15:36:22 2006
# Created On Node : glaurung.internal.golden-gryphon.com
# Last Modified By : Manoj Srivastava
# Last Modified On : Fri Sep 29 22:53:27 2006
# Last Machine Used: glaurung.internal.golden-gryphon.com
# Update Count : 43
# Status : Unknown, Use with caution!
# HISTORY :
# Description :
#
# arch-tag: 8ba11489-77fa-45a0-92c4-9c5b162ee119
#
# 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
#
# Make sure we abort on error
set -e
progname="$(basename \"$0\")"
trap 'rm -f search_patterns.txt;' ALRM HUP INT PIPE TERM ABRT FPE BUS QUIT SEGV ILL EXIT
# Find all undefined symbols in all ELF objects in this tree
readelf -s -D -W $(find . -type f -print0 | xargs -0r file | grep " ELF" | \
awk '{print $1}' | sed -e 's/:$//') | grep UND | grep -v LOCAL |
perl -ple 's/.*\s(\S+)\s*$/\^$1\$/g' | sort -u > search_patterns.txt;
# Find all the libraries needed in this tree
objdump -T --private-headers $(find . -type f -print0 | xargs -0r file | grep " ELF" | \
awk '{print $1}' | sed -e 's/:$//') | grep NEEDED | sort -u | awk '{print $2}' |
while read lib; do
# For each library, see where it lives o the file system
LIB=
for library_dir in "/lib" "/usr/lib" $EXTRA_LIBRARY_PATHS; do
if [ -e "$library_dir/$lib" ]; then
LIB="$library_dir/$lib";
break
fi
done
if [ -z "$LIB" ]; then
echo >&2 "Can't find $lib"
continue
fi
# If we fond the library, find what symbols it defines, and if these symbols
# are some that we need
if readelf -s -D -W $LIB | grep -v UND | perl -ple 's/.*\s(\S+)\s*$/$1/g' | \
sort -u | grep -q -f search_patterns.txt ; then
# Library provides at least some symbols we need
if [ -n "$DEBUG" ]; then echo "Found $LIB"; fi
else
# Library does not provide any symbols we need
echo "$LIB" ;
fi
done
# Get rid of the intermediate file
rm -f search_patterns.txt;
exit 0
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