lib/libc/sys/makelintstub

   1 #!/bin/sh -
   2 # $NetBSD: makelintstub,v 1.25 2012/02/12 01:46:05 martin 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] [-s syscall.h] object ...
  41         -n              Create SYSCALL_NOERROR.
  42         -p              Create PSEUDO_NOERROR.
  43                         (also removes leading "_" on syscall name).
  44         -o filename     Output to filename.
  45         -s syscall.h    Header to #include instead of <sys/syscall.h>.
  46
  47         The CPP environment variable must be set
  48         to the path to the C preprocessor.
  49 _EOF
  50         exit 1
  51 }
  52
  53 header()
  54 {
  55
  56         cat <<- __EOF__
  57         /*
  58          * THIS IS AN AUTOMATICALLY GENERATED FILE.  DO NOT EDIT.
  59          */
  60
  61         #include <sys/param.h>
  62         #include <sys/aio.h>
  63         #include <sys/time.h>
  64         #include <sys/mount.h>
  65         #include <sys/stat.h>
  66         #include <ufs/ufs/dinode.h>
  67         #include <ufs/lfs/lfs.h>
  68         #include <sys/resource.h>
  69         #include <sys/poll.h>
  70         #include <sys/uio.h>
  71         #include <sys/ipc.h>
  72         #include <sys/lwpctl.h>
  73         #include <sys/mqueue.h>
  74         #include <sys/msg.h>
  75         #include <sys/sem.h>
  76         #include <sys/shm.h>
  77         #include <sys/spawn.h>
  78         #include <sys/sched.h>
  79         #include <sys/timex.h>
  80         #include <sys/socket.h>
  81         #include <sys/event.h>
  82         #include <sys/uuid.h>
  83         #include <sys/quotactl.h>
  84         #ifdef __STDC__
  85         #include <stdarg.h>
  86         #else
  87         #include <varargs.h>
  88         #endif
  89
  90         __EOF__
  91 }
  92
  93 syscall_stub()
  94 {
  95
  96         syscalldump="$1"
  97         syscallname="$2"
  98         funcname="$3"
  99
 100         arglist="$(
 101         sed -e 'ta
 102                 :a
 103                 s,^/\* syscall: \"'"$syscallname"'\" ,,
 104                 tb
 105                 d
 106                 :b
 107                 s, \*/$,,' $syscalldump
 108         )"
 109
 110         eval set -f -- "$arglist"
 111
 112         if [ $# -lt 3 ]; then
 113                 echo syscall $syscallname not found! 1>&2
 114                 exit 1
 115         fi
 116
 117         shift                   # kill "ret:"
 118         returntype=$1; shift
 119         shift                   # kill "args:"
 120
 121         cat <<- __EOF__
 122         /*ARGSUSED*/
 123         $returntype
 124         __EOF__
 125
 126         # do ANSI C function header
 127         echo    "#ifdef __STDC__"
 128
 129         echo "$funcname("
 130         first=true; i=1
 131         for arg; do
 132                 if $first; then
 133                         first=false
 134                 else
 135                         echo ", "
 136                 fi
 137                 case "$arg" in
 138                 "...") echo "...";;
 139                 *) echo "$arg arg$i"; i=$(($i + 1));;
 140                 esac
 141         done
 142         if $first; then
 143                 echo "void"
 144         fi
 145         echo    ")"
 146
 147         # do K&R C function header
 148         echo    "#else"
 149
 150         echo "$funcname("
 151         first=true; i=1
 152         for arg; do
 153                 if $first; then
 154                         first=false
 155                 else
 156                         echo ", "
 157                 fi
 158                 case "$arg" in
 159                 "...") echo "va_alist";;
 160                 *) echo "arg$i"; i=$(($i + 1));;
 161                 esac
 162         done
 163         echo    ")"
 164         i=1
 165         for arg; do
 166                 case "$arg" in
 167                 "...") echo "   va_dcl";;
 168                 *) echo "       $arg arg$i;"; i=$(($i + 1));;
 169                 esac
 170         done
 171
 172         # do function body
 173         echo    "#endif"
 174
 175         echo    "{"
 176         if [ "$returntype" != "void" ]; then
 177                 echo "        return (($returntype)0);"
 178         fi
 179         echo    "}"
 180 }
 181
 182 trailer()
 183 {
 184
 185         cat <<- __EOF__
 186         /* END */
 187         __EOF__
 188 }
 189
 190
 191 pflag=false
 192 nflag=false
 193 oarg=""
 194 syscallhdr=/usr/include/sys/syscall.h
 195 syscalldump=/tmp/makelintstub.$$
 196 PROG="$(basename "$0")"
 197
 198 if [ -z "${CPP}" ]; then
 199         usage
 200 fi
 201
 202 while getopts no:ps: i
 203 do
 204         case "$i" in
 205         n)      nflag=true;;
 206         o)      oarg=$OPTARG;;
 207         p)      pflag=true;;
 208         s)      syscallhdr=$OPTARG;;
 209         *)      usage;;
 210         esac
 211 done
 212
 213 shift $(expr $OPTIND - 1)
 214
 215 if $pflag && $nflag
 216 then
 217         echo "$PROG: -n flag and -p flag may not be used together" 1>&2
 218         usage
 219 fi
 220
 221 if [ -n "$oarg" ]; then
 222         exec > $oarg
 223 fi
 224
 225 trap "rm -f $syscalldump" 0 1 2 3 15
 226
 227 header
 228
 229 echo "#include \"$syscallhdr\"" | ${CPP} -D_LIBC -C > $syscalldump
 230
 231 for syscall; do
 232         fnname=${syscall%.S}
 233         if $pflag; then
 234                 scname=${fnname#_}
 235         else
 236                 scname=$fnname
 237         fi
 238         syscall_stub $syscalldump $scname $fnname
 239         echo ""
 240 done
 241
 242 trailer
 243
 244 exit 0