makelintstub revision 1.4 
1#!/bin/sh -
2#	$NetBSD: makelintstub,v 1.4 1998/07/03 17:50:10 mycroft Exp $
3#
4# Copyright (c) 1996, 1997 Christopher G. Demetriou.  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 for the NetBSD Project
17#      by Christopher G. Demetriou.
18# 4. The name of the author may not be used to endorse or promote products
19#    derived from this software without specific prior written permission
20#
21# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31
32usage()
33{
34
35	echo "usage: $0 [-n|-p] [-o filename] object ..."
36	exit 1
37}
38
39header()
40{
41
42	cat <<- __EOF__
43	/*
44	 * THIS IS AN AUTOMATICALLY GENERATED FILE.  DO NOT EDIT.
45	 */
46
47	#include <sys/param.h>
48	#include <sys/time.h>
49	#include <sys/mount.h>
50	#include <sys/stat.h>
51	#include <ufs/ufs/dinode.h>
52	#include <ufs/lfs/lfs.h>
53	#include <sys/resource.h>
54	#include <sys/poll.h>
55	#include <sys/uio.h>
56	#include <sys/ipc.h>
57	#include <sys/msg.h>
58	#include <sys/sem.h>
59	#include <sys/shm.h>
60	#include <sys/timex.h>
61	#include <sys/socket.h>
62	#ifdef __STDC__
63	#include <stdarg.h>
64	#else
65	#include <varargs.h>
66	#endif
67
68	__EOF__
69}
70
71syscall_stub()
72{
73
74	syscalldump="$1"
75	syscallname="$2"
76	funcname="$3"
77
78    	arglist="`
79    	sed -e 'ta
80		:a
81		s,^/\* syscall: "'"$syscallname"'" ,,
82	        tb
83		d
84		:b
85		s, \*/$,,' $syscalldump
86	`"
87
88	eval set -f -- "$arglist"
89
90	if [ $# -lt 3 ]; then
91		echo syscall $syscallname not found! 1>&2
92		exit 1
93	fi
94
95	shift			# kill "ret:"
96	returntype=$1; shift
97	shift			# kill "args:"
98
99	cat <<- __EOF__
100	/*ARGSUSED*/
101	$returntype
102	__EOF__
103
104	if [ "`eval echo -n \\$$#`" = "..." ]; then
105		varargs=YES
106		nargs=$(($# - 1))
107	else
108		varargs=NO
109		nargs=$#
110	fi
111	nargswithva=$#
112
113	# do ANSI C function header
114	if [ $varargs = YES ]; then
115		echo	"#ifdef __STDC__"
116
117		echo -n	"$funcname("
118		i=1
119		while [ $i -le $nargs ]; do
120			eval echo -n \""\$$i"\"
121			echo -n	" arg$i"
122			if [ $i -lt $nargswithva ]; then
123				echo -n	", "
124			fi
125			i=$(($i + 1))
126		done
127		if [ $varargs = YES ]; then
128			echo -n "..."
129		fi
130		echo	")"
131
132		# do K&R C function header
133		echo	"#else"
134	fi
135
136	echo -n	"$funcname("
137	i=1
138	while [ $i -le $nargs ]; do
139		echo -n	"arg$i"
140		if [ $i -lt $nargswithva ]; then
141			echo -n	", "
142		fi
143		i=$(($i + 1))
144	done
145	if [ $varargs = YES ]; then
146		echo -n "va_alist"
147	fi
148	echo	")"
149	i=1
150	while [ $i -le $nargs ]; do
151		eval echo -n \""        \$$i"\"
152		echo	" arg$i;"
153		i=$(($i + 1))
154	done
155	if [ $varargs = YES ]; then
156		echo	"        va_dcl"
157	fi
158
159	# do function body
160	if [ $varargs = YES ]; then
161		echo	"#endif"
162	fi
163	echo	"{"
164	if [ "$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
178set -- `getopt no:ps: $*`
179
180pflag=NO
181nflag=NO
182oarg=""
183syscallhdr=/usr/include/sys/syscall.h
184syscalldump=/tmp/makelintstub.$$
185
186if test $? -ne 0; then
187	usage
188fi
189for i; do
190	case "$i" in
191	-n)	nflag=YES; shift;;
192	-o)	oarg=$2; shift; shift;;
193	-p)	pflag=YES; shift;;
194	-s)	syscallhdr=$2; shift; shift;;
195	--)	shift; break;;
196	esac
197done
198
199if [ $pflag = YES ] && [ $nflag = YES ]; then
200	echo "$0: -n flag and -p flag may not be used together"
201	echo ""
202	usage
203fi
204
205if [ "X$oarg" != "X" ]; then
206	exec > $oarg
207fi
208
209trap "rm -f $syscalldump" 0 1 2 15
210
211header
212printf '#include "'"$syscallhdr"'"' | cpp -C >$syscalldump
213for syscall; do
214	fnname=${syscall%.o}
215	if [ $pflag = YES ]; then
216		scname=${fnname#_}
217	else
218		scname=$fnname
219	fi
220	syscall_stub $syscalldump $scname $fnname
221	echo ""
222done
223trailer
224
225exit 0
226