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makelintstub revision 1.18 
      1 #!/bin/sh -
      2 # $NetBSD: makelintstub,v 1.18 2007/02/09 22:08:48 ad 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/time.h>
     57 	#include <sys/mount.h>
     58 	#include <sys/stat.h>
     59 	#include <ufs/ufs/dinode.h>
     60 	#include <ufs/lfs/lfs.h>
     61 	#include <sys/resource.h>
     62 	#include <sys/poll.h>
     63 	#include <sys/uio.h>
     64 	#include <sys/ipc.h>
     65 	#include <sys/msg.h>
     66 	#include <sys/sem.h>
     67 	#include <sys/shm.h>
     68 	#include <sys/timex.h>
     69 	#include <sys/socket.h>
     70 	#include <sys/event.h>
     71 	#include <sys/uuid.h>
     72 	#ifdef __STDC__
     73 	#include <stdarg.h>
     74 	#else
     75 	#include <varargs.h>
     76 	#endif
     77 
     78 	__EOF__
     79 }
     80 
     81 syscall_stub()
     82 {
     83 
     84 	syscalldump="$1"
     85 	syscallname="$2"
     86 	funcname="$3"
     87 
     88     	arglist="$(
     89     	sed -e 'ta
     90 		:a
     91 		s,^/\* syscall: \"'"$syscallname"'\" ,,
     92 	        tb
     93 		d
     94 		:b
     95 		s, \*/$,,' $syscalldump
     96 	)"
     97 
     98 	eval set -f -- "$arglist"
     99 
    100 	if [ $# -lt 3 ]; then
    101 		echo syscall $syscallname not found! 1>&2
    102 		exit 1
    103 	fi
    104 
    105 	shift			# kill "ret:"
    106 	returntype=$1; shift
    107 	shift			# kill "args:"
    108 
    109 	cat <<- __EOF__
    110 	/*ARGSUSED*/
    111 	$returntype
    112 	__EOF__
    113 
    114 	# do ANSI C function header
    115 	echo	"#ifdef __STDC__"
    116 
    117 	echo "$funcname("
    118 	first=true; i=1
    119 	for arg; do
    120 		if $first; then
    121 			first=false
    122 		else
    123 			echo ", "
    124 		fi
    125 		case "$arg" in
    126 		"...") echo "...";;
    127 		*) echo "$arg arg$i"; i=$(($i + 1));;
    128 		esac
    129 	done
    130 	if $first; then
    131 		echo "void"
    132 	fi
    133 	echo	")"
    134 
    135 	# do K&R C function header
    136 	echo	"#else"
    137 
    138 	echo "$funcname("
    139 	first=true; i=1
    140 	for arg; do
    141 		if $first; then
    142 			first=false
    143 		else
    144 			echo ", "
    145 		fi
    146 		case "$arg" in
    147 		"...") echo "va_alist";;
    148 		*) echo "arg$i"; i=$(($i + 1));;
    149 		esac
    150 	done
    151 	echo	")"
    152 	i=1
    153 	for arg; do
    154 		case "$arg" in
    155 		"...") echo "	va_dcl";;
    156 		*) echo "	$arg arg$i;"; i=$(($i + 1));;
    157 		esac
    158 	done
    159 
    160 	# do function body
    161 	echo	"#endif"
    162 
    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 
    179 pflag=false
    180 nflag=false
    181 oarg=""
    182 syscallhdr=/usr/include/sys/syscall.h
    183 syscalldump=/tmp/makelintstub.$$
    184 PROG="$(basename "$0")"
    185 
    186 if [ -z "${CPP}" ]; then
    187 	usage
    188 fi
    189 
    190 while getopts no:ps: i
    191 do
    192 	case "$i" in
    193 	n)	nflag=true;;
    194 	o)	oarg=$OPTARG;;
    195 	p)	pflag=true;;
    196 	s)	syscallhdr=$OPTARG;;
    197 	*)	usage;;
    198 	esac
    199 done
    200 
    201 shift $(expr $OPTIND - 1)
    202 
    203 if $pflag && $nflag
    204 then
    205 	echo "$PROG: -n flag and -p flag may not be used together" 1>&2
    206 	usage
    207 fi
    208 
    209 if [ -n "$oarg" ]; then
    210 	exec > $oarg
    211 fi
    212 
    213 trap "rm -f $syscalldump" 0 1 2 3 15
    214 
    215 header
    216 
    217 echo "#include \"$syscallhdr\"" | ${CPP} -D_LIBC -C > $syscalldump
    218 
    219 for syscall; do
    220 	fnname=${syscall%.S}
    221 	if $pflag; then
    222 		scname=${fnname#_}
    223 	else
    224 		scname=$fnname
    225 	fi
    226 	syscall_stub $syscalldump $scname $fnname
    227 	echo ""
    228 done
    229 
    230 trailer
    231 
    232 exit 0
    233