lorder.sh revision 331722 
1#!/bin/sh -
2#
3# Copyright (c) 1990, 1993
4#	The Regents of the University of California.  All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14# 4. Neither the name of the University nor the names of its contributors
15#    may be used to endorse or promote products derived from this software
16#    without specific prior written permission.
17#
18# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28# SUCH DAMAGE.
29#
30#	@(#)lorder.sh	8.1 (Berkeley) 6/6/93
31#
32# $FreeBSD: stable/11/usr.bin/lorder/lorder.sh 331722 2018-03-29 02:50:57Z eadler $
33#
34
35# only one argument is a special case, just output the name twice
36case $# in
37	0)
38		echo "usage: lorder file ...";
39		exit ;;
40	1)
41		echo $1 $1;
42		exit ;;
43esac
44
45# temporary files
46R=$(mktemp -t _reference_)
47S=$(mktemp -t _symbol_)
48NM=${NM:-nm}
49
50# remove temporary files on HUP, INT, QUIT, PIPE, TERM
51trap "rm -f $R $S $T; exit 1" 1 2 3 13 15
52
53# make sure all the files get into the output
54for i in $*; do
55	echo $i $i
56done
57
58# if the line has " [TDW] " it's a globally defined symbol, put it
59# into the symbol file.
60#
61# if the line has " U " it's a globally undefined symbol, put it into
62# the reference file.
63${NM} ${NMFLAGS} -go $* | sed "
64	/ [TDW] / {
65		s/:.* [TDW] / /
66		w $S
67		d
68	}
69	/ U / {
70		s/:.* U / /
71		w $R
72	}
73	d
74"
75
76export LC_ALL=C
77# eliminate references that can be resolved by the same library.
78if [ $(expr "$*" : '.*\.a[[:>:]]') -ne 0 ]; then
79	sort -u -o $S $S
80	sort -u -o $R $R
81	T=$(mktemp -t _temp_)
82	comm -23 $R $S >$T
83	mv $T $R
84fi
85
86# sort references and symbols on the second field (the symbol),
87# join on that field, and print out the file names.
88sort -k 2 -o $R $R
89sort -k 2 -o $S $S
90join -j 2 -o 1.1 2.1 $R $S
91rm -f $R $S
92