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makelintstub revision 1.19 
      1 #!/bin/sh -
      2 # $NetBSD: makelintstub,v 1.19 2007/10/09 18:18:33 rmind 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/mqueue.h>
     67 	#include <sys/msg.h>
     68 	#include <sys/sem.h>
     69 	#include <sys/shm.h>
     70 	#include <sys/timex.h>
     71 	#include <sys/socket.h>
     72 	#include <sys/event.h>
     73 	#include <sys/uuid.h>
     74 	#ifdef __STDC__
     75 	#include <stdarg.h>
     76 	#else
     77 	#include <varargs.h>
     78 	#endif
     79 
     80 	__EOF__
     81 }
     82 
     83 syscall_stub()
     84 {
     85 
     86 	syscalldump="$1"
     87 	syscallname="$2"
     88 	funcname="$3"
     89 
     90     	arglist="$(
     91     	sed -e 'ta
     92 		:a
     93 		s,^/\* syscall: \"'"$syscallname"'\" ,,
     94 	        tb
     95 		d
     96 		:b
     97 		s, \*/$,,' $syscalldump
     98 	)"
     99 
    100 	eval set -f -- "$arglist"
    101 
    102 	if [ $# -lt 3 ]; then
    103 		echo syscall $syscallname not found! 1>&2
    104 		exit 1
    105 	fi
    106 
    107 	shift			# kill "ret:"
    108 	returntype=$1; shift
    109 	shift			# kill "args:"
    110 
    111 	cat <<- __EOF__
    112 	/*ARGSUSED*/
    113 	$returntype
    114 	__EOF__
    115 
    116 	# do ANSI C function header
    117 	echo	"#ifdef __STDC__"
    118 
    119 	echo "$funcname("
    120 	first=true; i=1
    121 	for arg; do
    122 		if $first; then
    123 			first=false
    124 		else
    125 			echo ", "
    126 		fi
    127 		case "$arg" in
    128 		"...") echo "...";;
    129 		*) echo "$arg arg$i"; i=$(($i + 1));;
    130 		esac
    131 	done
    132 	if $first; then
    133 		echo "void"
    134 	fi
    135 	echo	")"
    136 
    137 	# do K&R C function header
    138 	echo	"#else"
    139 
    140 	echo "$funcname("
    141 	first=true; i=1
    142 	for arg; do
    143 		if $first; then
    144 			first=false
    145 		else
    146 			echo ", "
    147 		fi
    148 		case "$arg" in
    149 		"...") echo "va_alist";;
    150 		*) echo "arg$i"; i=$(($i + 1));;
    151 		esac
    152 	done
    153 	echo	")"
    154 	i=1
    155 	for arg; do
    156 		case "$arg" in
    157 		"...") echo "	va_dcl";;
    158 		*) echo "	$arg arg$i;"; i=$(($i + 1));;
    159 		esac
    160 	done
    161 
    162 	# do function body
    163 	echo	"#endif"
    164 
    165 	echo	"{"
    166 	if [ "$returntype" != "void" ]; then
    167 		echo "        return (($returntype)0);"
    168 	fi
    169 	echo	"}"
    170 }
    171 
    172 trailer()
    173 {
    174 
    175 	cat <<- __EOF__
    176 	/* END */
    177 	__EOF__
    178 }
    179 
    180 
    181 pflag=false
    182 nflag=false
    183 oarg=""
    184 syscallhdr=/usr/include/sys/syscall.h
    185 syscalldump=/tmp/makelintstub.$$
    186 PROG="$(basename "$0")"
    187 
    188 if [ -z "${CPP}" ]; then
    189 	usage
    190 fi
    191 
    192 while getopts no:ps: i
    193 do
    194 	case "$i" in
    195 	n)	nflag=true;;
    196 	o)	oarg=$OPTARG;;
    197 	p)	pflag=true;;
    198 	s)	syscallhdr=$OPTARG;;
    199 	*)	usage;;
    200 	esac
    201 done
    202 
    203 shift $(expr $OPTIND - 1)
    204 
    205 if $pflag && $nflag
    206 then
    207 	echo "$PROG: -n flag and -p flag may not be used together" 1>&2
    208 	usage
    209 fi
    210 
    211 if [ -n "$oarg" ]; then
    212 	exec > $oarg
    213 fi
    214 
    215 trap "rm -f $syscalldump" 0 1 2 3 15
    216 
    217 header
    218 
    219 echo "#include \"$syscallhdr\"" | ${CPP} -D_LIBC -C > $syscalldump
    220 
    221 for syscall; do
    222 	fnname=${syscall%.S}
    223 	if $pflag; then
    224 		scname=${fnname#_}
    225 	else
    226 		scname=$fnname
    227 	fi
    228 	syscall_stub $syscalldump $scname $fnname
    229 	echo ""
    230 done
    231 
    232 trailer
    233 
    234 exit 0
    235