xref: /dragonfly/usr.bin/lorder/lorder.sh (revision 0db87cb7) 
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. All advertising materials mentioning features or use of this software
15#    must display the following acknowledgement:
16#	This product includes software developed by the University of
17#	California, Berkeley and its contributors.
18# 4. Neither the name of the University nor the names of its contributors
19#    may be used to endorse or promote products derived from this software
20#    without specific prior written permission.
21#
22# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32# SUCH DAMAGE.
33#
34#	@(#)lorder.sh	8.1 (Berkeley) 6/6/93
35#
36# $FreeBSD: src/usr.bin/lorder/lorder.sh,v 1.2.6.2 2002/02/23 00:53:44 jhb Exp $
37# $DragonFly: src/usr.bin/lorder/lorder.sh,v 1.2 2003/06/17 04:29:28 dillon Exp $
38#
39
40# only one argument is a special case, just output the name twice
41case $# in
42	0)
43		echo "usage: lorder file ...";
44		exit ;;
45	1)
46		echo $1 $1;
47		exit ;;
48esac
49
50# temporary files
51R=$(mktemp -t _reference_)
52S=$(mktemp -t _symbol_)
53NM=${NM:-nm}
54
55# remove temporary files on HUP, INT, QUIT, PIPE, TERM
56trap "rm -f $R $S; exit 1" 1 2 3 13 15
57
58# make sure all the files get into the output
59for i in $*; do
60	echo $i $i
61done
62
63# if the line has " T " or " D " it's a globally defined symbol, put it
64# into the symbol file.
65#
66# if the line has " U " it's a globally undefined symbol, put it into
67# the reference file.
68${NM} -go $* | sed "
69	/ [TD] / {
70		s/:.* [TD] / /
71		w $S
72		d
73	}
74	/ U / {
75		s/:.* U / /
76		w $R
77	}
78	d
79"
80
81# sort symbols and references on the first field (the symbol)
82# join on that field, and print out the file names.
83sort +1 $R -o $R
84sort +1 $S -o $S
85join -j 2 -o 1.1 2.1 $R $S
86rm -f $R $S
87