xref: /netbsd/lib/libc/sys/makelintstub (revision c4a72b64) 
1#!/bin/sh -
2# $NetBSD: makelintstub,v 1.12 2002/11/11 00:54:57 thorpej 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
39	echo "usage: $0 [-n|-p] [-o filename] object ..."
40	echo "       The CPP environment variable must be set"
41	echo "       to the path to the C preprocessor."
42	exit 1
43}
44
45header()
46{
47
48	cat <<- __EOF__
49	/*
50	 * THIS IS AN AUTOMATICALLY GENERATED FILE.  DO NOT EDIT.
51	 */
52
53	#include <sys/param.h>
54	#include <sys/time.h>
55	#include <sys/mount.h>
56	#include <sys/stat.h>
57	#include <ufs/ufs/dinode.h>
58	#include <ufs/lfs/lfs.h>
59	#include <sys/resource.h>
60	#include <sys/poll.h>
61	#include <sys/uio.h>
62	#include <sys/ipc.h>
63	#include <sys/msg.h>
64	#include <sys/sem.h>
65	#include <sys/shm.h>
66	#include <sys/timex.h>
67	#include <sys/socket.h>
68	#include <sys/event.h>
69	#ifdef __STDC__
70	#include <stdarg.h>
71	#else
72	#include <varargs.h>
73	#endif
74
75	__EOF__
76}
77
78syscall_stub()
79{
80
81	syscalldump="$1"
82	syscallname="$2"
83	funcname="$3"
84
85    	arglist="`
86    	sed -e 'ta
87		:a
88		s,^/\* syscall: \"'"$syscallname"'\" ,,
89	        tb
90		d
91		:b
92		s, \*/$,,' $syscalldump
93	`"
94
95	eval set -f -- "$arglist"
96
97	if [ $# -lt 3 ]; then
98		echo syscall $syscallname not found! 1>&2
99		exit 1
100	fi
101
102	shift			# kill "ret:"
103	returntype=$1; shift
104	shift			# kill "args:"
105
106	cat <<- __EOF__
107	/*ARGSUSED*/
108	$returntype
109	__EOF__
110
111	# do ANSI C function header
112	echo	"#ifdef __STDC__"
113
114	echo "$funcname("
115	first=yes; i=1
116	for arg; do
117		if [ $first = yes ]; then
118			first=no
119		else
120			echo ", "
121		fi
122		case "$arg" in
123		"...") echo "...";;
124		*) echo "$arg arg$i"; i=$(($i + 1));;
125		esac
126	done
127	if [ $first = yes ]; then
128		echo "void"
129	fi
130	echo	")"
131
132	# do K&R C function header
133	echo	"#else"
134
135	echo "$funcname("
136	first=yes; i=1
137	for arg; do
138		if [ $first = yes ]; then
139			first=no
140		else
141			echo ", "
142		fi
143		case "$arg" in
144		"...") echo "va_alist";;
145		*) echo "arg$i"; i=$(($i + 1));;
146		esac
147	done
148	echo	")"
149	i=1
150	for arg; do
151		case "$arg" in
152		"...") echo "	va_dcl";;
153		*) echo "	$arg arg$i;"; i=$(($i + 1));;
154		esac
155	done
156
157	# do function body
158	echo	"#endif"
159
160	echo	"{"
161	if [ "$returntype" != "void" ]; then
162		echo "        return (($returntype)0);"
163	fi
164	echo	"}"
165}
166
167trailer()
168{
169
170	cat <<- __EOF__
171	/* END */
172	__EOF__
173}
174
175set -- `getopt no:ps: $*`
176
177pflag=NO
178nflag=NO
179oarg=""
180syscallhdr=/usr/include/sys/syscall.h
181syscalldump=/tmp/makelintstub.$$
182
183if test "x${CPP}" = "x"; then
184	usage
185fi
186
187if test $? -ne 0; then
188	usage
189fi
190for i; do
191	case "$i" in
192	-n)	nflag=YES; shift;;
193	-o)	oarg=$2; shift; shift;;
194	-p)	pflag=YES; shift;;
195	-s)	syscallhdr=$2; shift; shift;;
196	--)	shift; break;;
197	esac
198done
199
200if [ $pflag = YES ] && [ $nflag = YES ]; then
201	echo "$0: -n flag and -p flag may not be used together"
202	echo ""
203	usage
204fi
205
206if [ "X$oarg" != "X" ]; then
207	exec > $oarg
208fi
209
210trap "rm -f $syscalldump" 0 1 2 15
211
212header
213echo "#include \"$syscallhdr\"" | ${CPP} -C >$syscalldump
214for syscall; do
215	fnname=${syscall%.S}
216	if [ $pflag = YES ]; then
217		scname=${fnname#_}
218	else
219		scname=$fnname
220	fi
221	syscall_stub $syscalldump $scname $fnname
222	echo ""
223done
224trailer
225
226exit 0
227