systags.sh revision 128019 
1#! /bin/sh
2#
3# Copyright (c) 1992, 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#	@(#)systags.sh	8.1 (Berkeley) 6/10/93
31# $FreeBSD: head/sys/conf/systags.sh 128019 2004-04-07 20:46:16Z imp $
32#
33# systags.sh - construct a system tags file using dependence relations
34#	in a .depend file
35#
36# First written May 16, 1992 by Van Jacobson, Lawrence Berkeley Laboratory.
37
38rm -f tags tags.tmp tags.cfiles tags.sfiles tags.hfiles
39MACHINE=`uname -m`
40sed -e "s, machine/, ../../../$MACHINE/include/,g" \
41	-e 's,[a-z][^/    ]*/\.\./,,g' .depend | awk '{
42		for (i = 1; i <= NF; ++i) {
43			t = substr($i, length($i) - 1)
44			if (t == ".c")
45				cfiles[$i] = 1;
46			else if (t == ".h")
47				hfiles[$i] = 1;
48			else if (t == ".s")
49				sfiles[$i] = 1;
50		}
51	};
52	END {
53		for (i in cfiles)
54			print i > "tags.cfiles";
55		for (i in sfiles)
56			print i > "tags.sfiles";
57		for (i in hfiles)
58			print i > "tags.hfiles";
59	}'
60
61ctags -t -d -w `cat tags.cfiles tags.hfiles tags.sfiles`
62egrep "^ENTRY\(.*\)|^ALTENTRY\(.*\)" `cat tags.sfiles` | \
63    sed "s;\([^:]*\):\([^(]*\)(\([^, )]*\)\(.*\);\3	\1	/^\2(\3\4$/;" >> tags
64
65mv tags tags.tmp
66sort -u tags.tmp > tags
67rm tags.tmp tags.cfiles tags.sfiles tags.hfiles
68