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makelintstub revision 1.17 
      1 #!/bin/sh -
      2 # $NetBSD: makelintstub,v 1.17 2006/06/18 14:28:12 christos 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 <sys/sa.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/msg.h>
     67 	#include <sys/sem.h>
     68 	#include <sys/shm.h>
     69 	#include <sys/timex.h>
     70 	#include <sys/socket.h>
     71 	#include <sys/event.h>
     72 	#include <sys/uuid.h>
     73 	#ifdef __STDC__
     74 	#include <stdarg.h>
     75 	#else
     76 	#include <varargs.h>
     77 	#endif
     78 
     79 	__EOF__
     80 }
     81 
     82 syscall_stub()
     83 {
     84 
     85 	syscalldump="$1"
     86 	syscallname="$2"
     87 	funcname="$3"
     88 
     89     	arglist="$(
     90     	sed -e 'ta
     91 		:a
     92 		s,^/\* syscall: \"'"$syscallname"'\" ,,
     93 	        tb
     94 		d
     95 		:b
     96 		s, \*/$,,' $syscalldump
     97 	)"
     98 
     99 	eval set -f -- "$arglist"
    100 
    101 	if [ $# -lt 3 ]; then
    102 		echo syscall $syscallname not found! 1>&2
    103 		exit 1
    104 	fi
    105 
    106 	shift			# kill "ret:"
    107 	returntype=$1; shift
    108 	shift			# kill "args:"
    109 
    110 	cat <<- __EOF__
    111 	/*ARGSUSED*/
    112 	$returntype
    113 	__EOF__
    114 
    115 	# do ANSI C function header
    116 	echo	"#ifdef __STDC__"
    117 
    118 	echo "$funcname("
    119 	first=true; i=1
    120 	for arg; do
    121 		if $first; then
    122 			first=false
    123 		else
    124 			echo ", "
    125 		fi
    126 		case "$arg" in
    127 		"...") echo "...";;
    128 		*) echo "$arg arg$i"; i=$(($i + 1));;
    129 		esac
    130 	done
    131 	if $first; then
    132 		echo "void"
    133 	fi
    134 	echo	")"
    135 
    136 	# do K&R C function header
    137 	echo	"#else"
    138 
    139 	echo "$funcname("
    140 	first=true; i=1
    141 	for arg; do
    142 		if $first; then
    143 			first=false
    144 		else
    145 			echo ", "
    146 		fi
    147 		case "$arg" in
    148 		"...") echo "va_alist";;
    149 		*) echo "arg$i"; i=$(($i + 1));;
    150 		esac
    151 	done
    152 	echo	")"
    153 	i=1
    154 	for arg; do
    155 		case "$arg" in
    156 		"...") echo "	va_dcl";;
    157 		*) echo "	$arg arg$i;"; i=$(($i + 1));;
    158 		esac
    159 	done
    160 
    161 	# do function body
    162 	echo	"#endif"
    163 
    164 	echo	"{"
    165 	if [ "$returntype" != "void" ]; then
    166 		echo "        return (($returntype)0);"
    167 	fi
    168 	echo	"}"
    169 }
    170 
    171 trailer()
    172 {
    173 
    174 	cat <<- __EOF__
    175 	/* END */
    176 	__EOF__
    177 }
    178 
    179 
    180 pflag=false
    181 nflag=false
    182 oarg=""
    183 syscallhdr=/usr/include/sys/syscall.h
    184 syscalldump=/tmp/makelintstub.$$
    185 PROG="$(basename "$0")"
    186 
    187 if [ -z "${CPP}" ]; then
    188 	usage
    189 fi
    190 
    191 while getopts no:ps: i
    192 do
    193 	case "$i" in
    194 	n)	nflag=true;;
    195 	o)	oarg=$OPTARG;;
    196 	p)	pflag=true;;
    197 	s)	syscallhdr=$OPTARG;;
    198 	*)	usage;;
    199 	esac
    200 done
    201 
    202 shift $(expr $OPTIND - 1)
    203 
    204 if $pflag && $nflag
    205 then
    206 	echo "$PROG: -n flag and -p flag may not be used together" 1>&2
    207 	usage
    208 fi
    209 
    210 if [ -n "$oarg" ]; then
    211 	exec > $oarg
    212 fi
    213 
    214 trap "rm -f $syscalldump" 0 1 2 3 15
    215 
    216 header
    217 
    218 echo "#include \"$syscallhdr\"" | ${CPP} -D_LIBC -C > $syscalldump
    219 
    220 for syscall; do
    221 	fnname=${syscall%.S}
    222 	if $pflag; then
    223 		scname=${fnname#_}
    224 	else
    225 		scname=$fnname
    226 	fi
    227 	syscall_stub $syscalldump $scname $fnname
    228 	echo ""
    229 done
    230 
    231 trailer
    232 
    233 exit 0
    234