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makelintstub revision 1.5 
      1 #!/bin/sh -
      2 #	$NetBSD: makelintstub,v 1.5 1998/07/03 18:09:25 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 
     32 usage()
     33 {
     34 
     35 	echo "usage: $0 [-n|-p] [-o filename] object ..."
     36 	exit 1
     37 }
     38 
     39 header()
     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 
     71 syscall_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 	$returntype
    102 	__EOF__
    103 
    104 	# do ANSI C function header
    105 	echo	"#ifdef __STDC__"
    106 
    107 	echo -n	"$funcname("
    108 	first=yes; i=1
    109 	for arg; do
    110 		if [ $first = yes ]; then
    111 			first=no
    112 		else
    113 			echo -n	", "
    114 		fi
    115 		case "$arg" in
    116 		"...") echo -n "...";;
    117 		*) echo -n "$arg arg$i"; i=$(($i + 1));;
    118 		esac
    119 	done
    120 	echo	")"
    121 
    122 	# do K&R C function header
    123 	echo	"#else"
    124 
    125 	echo -n	"$funcname("
    126 	first=yes; i=1
    127 	for arg; do
    128 		if [ $first = yes ]; then
    129 			first=no
    130 		else
    131 			echo -n	", "
    132 		fi
    133 		case "$arg" in
    134 		"...") echo -n "va_alist";;
    135 		*) echo -n "arg$i"; i=$(($i + 1));;
    136 		esac
    137 	done
    138 	echo	")"
    139 	i=1
    140 	for arg; do
    141 		case "$arg" in
    142 		"...") echo "	va_dcl";;
    143 		*) echo "	$arg arg$i;"; i=$(($i + 1));;
    144 		esac
    145 	done
    146 
    147 	# do function body
    148 	echo	"#endif"
    149 
    150 	echo	"{"
    151 	if [ "$returntype" != "void" ]; then
    152 		echo "        return (($returntype)0);"
    153 	fi
    154 	echo	"}"
    155 }
    156 
    157 trailer()
    158 {
    159 
    160 	cat <<- __EOF__
    161 	/* END */
    162 	__EOF__
    163 }
    164 
    165 set -- `getopt no:ps: $*`
    166 
    167 pflag=NO
    168 nflag=NO
    169 oarg=""
    170 syscallhdr=/usr/include/sys/syscall.h
    171 syscalldump=/tmp/makelintstub.$$
    172 
    173 if test $? -ne 0; then
    174 	usage
    175 fi
    176 for i; do
    177 	case "$i" in
    178 	-n)	nflag=YES; shift;;
    179 	-o)	oarg=$2; shift; shift;;
    180 	-p)	pflag=YES; shift;;
    181 	-s)	syscallhdr=$2; shift; shift;;
    182 	--)	shift; break;;
    183 	esac
    184 done
    185 
    186 if [ $pflag = YES ] && [ $nflag = YES ]; then
    187 	echo "$0: -n flag and -p flag may not be used together"
    188 	echo ""
    189 	usage
    190 fi
    191 
    192 if [ "X$oarg" != "X" ]; then
    193 	exec > $oarg
    194 fi
    195 
    196 trap "rm -f $syscalldump" 0 1 2 15
    197 
    198 header
    199 printf '#include "'"$syscallhdr"'"' | cpp -C >$syscalldump
    200 for syscall; do
    201 	fnname=${syscall%.o}
    202 	if [ $pflag = YES ]; then
    203 		scname=${fnname#_}
    204 	else
    205 		scname=$fnname
    206 	fi
    207 	syscall_stub $syscalldump $scname $fnname
    208 	echo ""
    209 done
    210 trailer
    211 
    212 exit 0
    213