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makelintstub revision 1.20 
      1 #!/bin/sh -
      2 # $NetBSD: makelintstub,v 1.20 2007/11/13 09:07:33 he 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 
     36 usage()
     37 {
     38 
     39 cat << _EOF 1>&2
     40 Usage: $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 
     47 header()
     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/aio.h>
     57 	#include <sys/time.h>
     58 	#include <sys/mount.h>
     59 	#include <sys/stat.h>
     60 	#include <ufs/ufs/dinode.h>
     61 	#include <ufs/lfs/lfs.h>
     62 	#include <sys/resource.h>
     63 	#include <sys/poll.h>
     64 	#include <sys/uio.h>
     65 	#include <sys/ipc.h>
     66 	#include <sys/lwpctl.h>
     67 	#include <sys/mqueue.h>
     68 	#include <sys/msg.h>
     69 	#include <sys/sem.h>
     70 	#include <sys/shm.h>
     71 	#include <sys/timex.h>
     72 	#include <sys/socket.h>
     73 	#include <sys/event.h>
     74 	#include <sys/uuid.h>
     75 	#ifdef __STDC__
     76 	#include <stdarg.h>
     77 	#else
     78 	#include <varargs.h>
     79 	#endif
     80 
     81 	__EOF__
     82 }
     83 
     84 syscall_stub()
     85 {
     86 
     87 	syscalldump="$1"
     88 	syscallname="$2"
     89 	funcname="$3"
     90 
     91     	arglist="$(
     92     	sed -e 'ta
     93 		:a
     94 		s,^/\* syscall: \"'"$syscallname"'\" ,,
     95 	        tb
     96 		d
     97 		:b
     98 		s, \*/$,,' $syscalldump
     99 	)"
    100 
    101 	eval set -f -- "$arglist"
    102 
    103 	if [ $# -lt 3 ]; then
    104 		echo syscall $syscallname not found! 1>&2
    105 		exit 1
    106 	fi
    107 
    108 	shift			# kill "ret:"
    109 	returntype=$1; shift
    110 	shift			# kill "args:"
    111 
    112 	cat <<- __EOF__
    113 	/*ARGSUSED*/
    114 	$returntype
    115 	__EOF__
    116 
    117 	# do ANSI C function header
    118 	echo	"#ifdef __STDC__"
    119 
    120 	echo "$funcname("
    121 	first=true; i=1
    122 	for arg; do
    123 		if $first; then
    124 			first=false
    125 		else
    126 			echo ", "
    127 		fi
    128 		case "$arg" in
    129 		"...") echo "...";;
    130 		*) echo "$arg arg$i"; i=$(($i + 1));;
    131 		esac
    132 	done
    133 	if $first; then
    134 		echo "void"
    135 	fi
    136 	echo	")"
    137 
    138 	# do K&R C function header
    139 	echo	"#else"
    140 
    141 	echo "$funcname("
    142 	first=true; i=1
    143 	for arg; do
    144 		if $first; then
    145 			first=false
    146 		else
    147 			echo ", "
    148 		fi
    149 		case "$arg" in
    150 		"...") echo "va_alist";;
    151 		*) echo "arg$i"; i=$(($i + 1));;
    152 		esac
    153 	done
    154 	echo	")"
    155 	i=1
    156 	for arg; do
    157 		case "$arg" in
    158 		"...") echo "	va_dcl";;
    159 		*) echo "	$arg arg$i;"; i=$(($i + 1));;
    160 		esac
    161 	done
    162 
    163 	# do function body
    164 	echo	"#endif"
    165 
    166 	echo	"{"
    167 	if [ "$returntype" != "void" ]; then
    168 		echo "        return (($returntype)0);"
    169 	fi
    170 	echo	"}"
    171 }
    172 
    173 trailer()
    174 {
    175 
    176 	cat <<- __EOF__
    177 	/* END */
    178 	__EOF__
    179 }
    180 
    181 
    182 pflag=false
    183 nflag=false
    184 oarg=""
    185 syscallhdr=/usr/include/sys/syscall.h
    186 syscalldump=/tmp/makelintstub.$$
    187 PROG="$(basename "$0")"
    188 
    189 if [ -z "${CPP}" ]; then
    190 	usage
    191 fi
    192 
    193 while getopts no:ps: i
    194 do
    195 	case "$i" in
    196 	n)	nflag=true;;
    197 	o)	oarg=$OPTARG;;
    198 	p)	pflag=true;;
    199 	s)	syscallhdr=$OPTARG;;
    200 	*)	usage;;
    201 	esac
    202 done
    203 
    204 shift $(expr $OPTIND - 1)
    205 
    206 if $pflag && $nflag
    207 then
    208 	echo "$PROG: -n flag and -p flag may not be used together" 1>&2
    209 	usage
    210 fi
    211 
    212 if [ -n "$oarg" ]; then
    213 	exec > $oarg
    214 fi
    215 
    216 trap "rm -f $syscalldump" 0 1 2 3 15
    217 
    218 header
    219 
    220 echo "#include \"$syscallhdr\"" | ${CPP} -D_LIBC -C > $syscalldump
    221 
    222 for syscall; do
    223 	fnname=${syscall%.S}
    224 	if $pflag; then
    225 		scname=${fnname#_}
    226 	else
    227 		scname=$fnname
    228 	fi
    229 	syscall_stub $syscalldump $scname $fnname
    230 	echo ""
    231 done
    232 
    233 trailer
    234 
    235 exit 0
    236