xref: /original-bsd/usr.bin/lorder/lorder.sh (revision b079d642)
1#!/bin/sh -
2#
3# Copyright (c) 1990 The Regents of the University of California.
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms are permitted
7# provided that the above copyright notice and this paragraph are
8# duplicated in all such forms and that any documentation,
9# advertising materials, and other materials related to such
10# distribution and use acknowledge that the software was developed
11# by the University of California, Berkeley.  The name of the
12# University may not be used to endorse or promote products derived
13# from this software without specific prior written permission.
14# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
15# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
16# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
17#
18#	@(#)lorder.sh	5.2 (Berkeley) 03/20/90
19#
20PATH=/bin:/usr/bin
21export PATH
22
23# only one argument is a special case, just output the name twice
24case $# in
25	0)
26		echo "usage: lorder file ...";
27		exit ;;
28	1)
29		echo $1 $1;
30		exit ;;
31esac
32
33# temporary files
34R=/tmp/_reference_$$
35S=/tmp/_symbol_$$
36
37# remove temporary files on HUP, INT, QUIT, PIPE, TERM
38trap "rm -f $R $S; exit 1" 1 2 3 13 15
39
40# if the line ends in a colon, assume it's the first occurrence of a new
41# object file.  Echo it twice, just to make sure it gets into the output.
42#
43# if the line has " T " or " D " it's a globally defined symbol, put it
44# into the symbol file.
45#
46# if the line has " U " it's a globally undefined symbol, put it into
47# the reference file.
48nm -go $* | sed "
49	/:$/ {
50		s/://
51		s/.*/& &/
52		p
53		d
54	}
55	/ [TD] / {
56		s/:.* [TD]//
57		w $S
58		d
59	}
60	/ U / {
61		s/:.* U//
62		w $R
63	}
64	d
65"
66
67# sort symbols and references on the first field (the symbol)
68# join on that field, and print out the file names.
69sort +1 $R -o $R
70sort +1 $S -o $S
71join -j 2 -o 1.1 2.1 $R $S
72rm -f $R $S
73