#!/bin/sh -
#
# SPDX-License-Identifier: BSD-3-Clause
#
# Copyright (c) 1990, 1993
# The Regents of the University of California. 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.
# 3. Neither the name of the University nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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.
#
# @(#)lorder.sh 8.1 (Berkeley) 6/6/93
#
#
export LC_CTYPE=C
export LC_COLLATE=C
set -e
usage() {
echo "usage: lorder file ..." >&2
exit 1
}
while getopts "" opt ; do
case $opt in
*)
usage
;;
esac
done
shift $(($OPTIND - 1))
if [ $# -eq 0 ] ; then
usage
fi
#
# Create temporary files.
#
N=$(mktemp -t _nm_)
R=$(mktemp -t _reference_)
S=$(mktemp -t _symbol_)
T=$(mktemp -t _temp_)
NM=${NM:-nm}
#
# Remove temporary files on termination.
#
trap "rm -f $N $R $S $T" EXIT 1 2 3 13 15
#
# A line matching " [RTDW] " indicates that the input defines a symbol
# with external linkage; put it in the symbol file.
#
# A line matching " U " indicates that the input references an
# undefined symbol; put it in the reference file.
#
${NM} ${NMFLAGS} -go "$@" >$N
sed -e "
/ [RTDW] / {
s/:.* [RTDW] / /
w $S
d
}
/ U / {
s/:.* U / /
w $R
}
d
" <$N
#
# Elide entries representing a reference to a symbol from within the
# library that defines it.
#
sort -u -o $S $S
sort -u -o $R $R
comm -23 $R $S >$T
mv $T $R
#
# Make sure that all inputs get into the output.
#
for i ; do
echo "$i" "$i"
done
#
# Sort references and symbols on the second field (the symbol), join
# on that field, and print out the file names.
#
sort -k 2 -o $R $R
sort -k 2 -o $S $S
join -j 2 -o 1.1 -o 2.1 $R $S
Mini Shell