makelintstub revision 1.18 
1#!/bin/sh -
2# $NetBSD: makelintstub,v 1.18 2007/02/09 22:08:48 ad Exp $
3#
4# Copyright (c) 1996, 1997 Christopher G. Demetriou
5# All rights reserved.
6# 
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10# 1. Redistributions of source code must retain the above copyright
11#    notice, this list of conditions and the following disclaimer.
12# 2. Redistributions in binary form must reproduce the above copyright
13#    notice, this list of conditions and the following disclaimer in the
14#    documentation and/or other materials provided with the distribution.
15# 3. All advertising materials mentioning features or use of this software
16#    must display the following acknowledgement:
17#          This product includes software developed for the
18#          NetBSD Project.  See http://www.NetBSD.org/ for
19#          information about NetBSD.
20# 4. The name of the author may not be used to endorse or promote products
21#    derived from this software without specific prior written permission.
22# 
23# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33# 
34# <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
35
36usage()
37{
38
39cat << _EOF 1>&2
40Usage: $PROG [-n|-p] [-o filename] object ...
41	The CPP environment variable must be set
42	to the path to the C preprocessor.
43_EOF
44	exit 1
45}
46
47header()
48{
49
50	cat <<- __EOF__
51	/*
52	 * THIS IS AN AUTOMATICALLY GENERATED FILE.  DO NOT EDIT.
53	 */
54
55	#include <sys/param.h>
56	#include <sys/time.h>
57	#include <sys/mount.h>
58	#include <sys/stat.h>
59	#include <ufs/ufs/dinode.h>
60	#include <ufs/lfs/lfs.h>
61	#include <sys/resource.h>
62	#include <sys/poll.h>
63	#include <sys/uio.h>
64	#include <sys/ipc.h>
65	#include <sys/msg.h>
66	#include <sys/sem.h>
67	#include <sys/shm.h>
68	#include <sys/timex.h>
69	#include <sys/socket.h>
70	#include <sys/event.h>
71	#include <sys/uuid.h>
72	#ifdef __STDC__
73	#include <stdarg.h>
74	#else
75	#include <varargs.h>
76	#endif
77
78	__EOF__
79}
80
81syscall_stub()
82{
83
84	syscalldump="$1"
85	syscallname="$2"
86	funcname="$3"
87
88    	arglist="$(
89    	sed -e 'ta
90		:a
91		s,^/\* syscall: \"'"$syscallname"'\" ,,
92	        tb
93		d
94		:b
95		s, \*/$,,' $syscalldump
96	)"
97
98	eval set -f -- "$arglist"
99
100	if [ $# -lt 3 ]; then
101		echo syscall $syscallname not found! 1>&2
102		exit 1
103	fi
104
105	shift			# kill "ret:"
106	returntype=$1; shift
107	shift			# kill "args:"
108
109	cat <<- __EOF__
110	/*ARGSUSED*/
111	$returntype
112	__EOF__
113
114	# do ANSI C function header
115	echo	"#ifdef __STDC__"
116
117	echo "$funcname("
118	first=true; i=1
119	for arg; do
120		if $first; then
121			first=false
122		else
123			echo ", "
124		fi
125		case "$arg" in
126		"...") echo "...";;
127		*) echo "$arg arg$i"; i=$(($i + 1));;
128		esac
129	done
130	if $first; then
131		echo "void"
132	fi
133	echo	")"
134
135	# do K&R C function header
136	echo	"#else"
137
138	echo "$funcname("
139	first=true; i=1
140	for arg; do
141		if $first; then
142			first=false
143		else
144			echo ", "
145		fi
146		case "$arg" in
147		"...") echo "va_alist";;
148		*) echo "arg$i"; i=$(($i + 1));;
149		esac
150	done
151	echo	")"
152	i=1
153	for arg; do
154		case "$arg" in
155		"...") echo "	va_dcl";;
156		*) echo "	$arg arg$i;"; i=$(($i + 1));;
157		esac
158	done
159
160	# do function body
161	echo	"#endif"
162
163	echo	"{"
164	if [ "$returntype" != "void" ]; then
165		echo "        return (($returntype)0);"
166	fi
167	echo	"}"
168}
169
170trailer()
171{
172
173	cat <<- __EOF__
174	/* END */
175	__EOF__
176}
177
178
179pflag=false
180nflag=false
181oarg=""
182syscallhdr=/usr/include/sys/syscall.h
183syscalldump=/tmp/makelintstub.$$
184PROG="$(basename "$0")"
185
186if [ -z "${CPP}" ]; then
187	usage
188fi
189
190while getopts no:ps: i
191do
192	case "$i" in
193	n)	nflag=true;;
194	o)	oarg=$OPTARG;;
195	p)	pflag=true;;
196	s)	syscallhdr=$OPTARG;;
197	*)	usage;;
198	esac
199done
200
201shift $(expr $OPTIND - 1)
202
203if $pflag && $nflag
204then
205	echo "$PROG: -n flag and -p flag may not be used together" 1>&2
206	usage
207fi
208
209if [ -n "$oarg" ]; then
210	exec > $oarg
211fi
212
213trap "rm -f $syscalldump" 0 1 2 3 15
214
215header
216
217echo "#include \"$syscallhdr\"" | ${CPP} -D_LIBC -C > $syscalldump
218
219for syscall; do
220	fnname=${syscall%.S}
221	if $pflag; then
222		scname=${fnname#_}
223	else
224		scname=$fnname
225	fi
226	syscall_stub $syscalldump $scname $fnname
227	echo ""
228done
229
230trailer
231
232exit 0
233