xref: /dragonfly/usr.bin/lorder/lorder.sh (revision d7eb8604) 
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# 3. 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: src/usr.bin/lorder/lorder.sh,v 1.2.6.2 2002/02/23 00:53:44 jhb Exp $
33# $DragonFly: src/usr.bin/lorder/lorder.sh,v 1.2 2003/06/17 04:29:28 dillon Exp $
34#
35
36# only one argument is a special case, just output the name twice
37case $# in
38	0)
39		echo "usage: lorder file ...";
40		exit ;;
41	1)
42		echo $1 $1;
43		exit ;;
44esac
45
46# temporary files
47R=$(mktemp -t _reference_)
48S=$(mktemp -t _symbol_)
49NM=${NM:-nm}
50
51# remove temporary files on HUP, INT, QUIT, PIPE, TERM
52trap "rm -f $R $S; exit 1" 1 2 3 13 15
53
54# make sure all the files get into the output
55for i in $*; do
56	echo $i $i
57done
58
59# if the line has " T " or " D " it's a globally defined symbol, put it
60# into the symbol file.
61#
62# if the line has " U " it's a globally undefined symbol, put it into
63# the reference file.
64${NM} -go $* | sed "
65	/ [TD] / {
66		s/:.* [TD] / /
67		w $S
68		d
69	}
70	/ U / {
71		s/:.* U / /
72		w $R
73	}
74	d
75"
76
77# sort symbols and references on the first field (the symbol)
78# join on that field, and print out the file names.
79sort -s -k2,2 -o $R $R
80sort -s -k2,2 -o $S $S
81join -j 2 -o 1.1 2.1 $R $S
82rm -f $R $S
83