Home | History | Annotate | Line # | Download | only in sys
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 
     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 	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 
    170 trailer()
    171 {
    172 
    173 	cat <<- __EOF__
    174 	/* END */
    175 	__EOF__
    176 }
    177 
    178 set -- `getopt no:ps: $*`
    179 
    180 pflag=NO
    181 nflag=NO
    182 oarg=""
    183 syscallhdr=/usr/include/sys/syscall.h
    184 syscalldump=/tmp/makelintstub.$$
    185 
    186 if test $? -ne 0; then
    187 	usage
    188 fi
    189 for i; do
    190 	case "$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
    197 done
    198 
    199 if [ $pflag = YES ] && [ $nflag = YES ]; then
    200 	echo "$0: -n flag and -p flag may not be used together"
    201 	echo ""
    202 	usage
    203 fi
    204 
    205 if [ "X$oarg" != "X" ]; then
    206 	exec > $oarg
    207 fi
    208 
    209 trap "rm -f $syscalldump" 0 1 2 15
    210 
    211 header
    212 printf '#include "'"$syscallhdr"'"' | cpp -C >$syscalldump
    213 for syscall; do
    214 	fnname=${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 ""
    222 done
    223 trailer
    224 
    225 exit 0
    226