sys/rump/librump/makerumpif.sh

   1 #!/bin/sh
   2 #
   3 #       $NetBSD: makerumpif.sh,v 1.3 2009/10/14 18:14:48 pooka Exp $
   4 #
   5 # Copyright (c) 2009 Antti Kantee.  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 #
  16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 #
  27
  28 #
  29 # This reads a rump component interface description and creates:
  30 #  1: rump private prototypes for internal calls
  31 #  2: public prototypes for calls outside of rump
  32 #  3: public interface implementations which run the rump scheduler
  33 #     and call the private interface
  34 #
  35
  36 usage ()
  37 {
  38
  39         echo "usage: $0 spec"
  40         exit 1
  41 }
  42
  43 boom ()
  44 {
  45
  46         echo $*
  47         exit 1
  48 }
  49
  50 [ $# != 1 ] && usage
  51
  52 MYDIR=`pwd`
  53 while [ ! -f Makefile.rump  ]; do
  54         [ `pwd` = '/' ] && boom Could not find rump topdir.
  55         cd ..
  56 done
  57 RUMPTOP="`pwd`"
  58 cd ${MYDIR}
  59
  60 sed -e '
  61 :again
  62         /\\$/{
  63                 N
  64                 s/[     ]*\\\n[         ]*/ /
  65                 b again
  66         }
  67 ' ${1} | awk -F\| -v rumptop=${RUMPTOP} '
  68 function fileheaders(file, srcstr)
  69 {
  70         printf("/*\t$NetBSD: makerumpif.sh,v 1.3 2009/10/14 18:14:48 pooka Exp $\t*/\n\n") > file
  71         printf("/*\n * Automatically generated.  DO NOT EDIT.\n") > file
  72         genstr = "$NetBSD: makerumpif.sh,v 1.3 2009/10/14 18:14:48 pooka Exp $"
  73         gsub("\\$", "", genstr)
  74         printf(" * from: %s\n", srcstr) > file
  75         printf(" * by:   %s\n", genstr) > file
  76         printf(" */\n") > file
  77 }
  78
  79 function die(str)
  80 {
  81
  82         print str
  83         exit(1)
  84 }
  85
  86 NR == 1 {
  87         sub(";[^\\$]*\\$", "")
  88         sub("\\$", "")
  89         fromstr = $0
  90         next
  91 }
  92
  93 $1 == "NAME"{myname = $2;next}
  94 $1 == "PUBHDR"{pubhdr = rumptop "/" $2;next}
  95 $1 == "PRIVHDR"{privhdr = rumptop "/" $2;next}
  96 $1 == "WRAPPERS"{gencalls = rumptop "/" $2;next}
  97
  98 /^;/{next}
  99 /\\$/{sub("\\\n", "");getline nextline;$0 = $0 nextline}
 100 /^[ \t]*$/{next}
 101 {
 102         if (NF != 3 && NF != 4) {
 103                 die("error: unexpected number of fields\n")
 104         }
 105         if (NF == 4) {
 106                 if ($4 == "WEAK")
 107                         isweak = 1
 108                 else
 109                         die("error: unexpected fourth field");
 110         } else {
 111                 isweak = 0
 112         }
 113         if (!myname)
 114                 die("name not specified");
 115         if (!pubhdr)
 116                 die("public header not specified");
 117         if (!privhdr)
 118                 die("private header not specified");
 119         if (!gencalls)
 120                 die("wrapper file not specified");
 121
 122         if (!once) {
 123                 fileheaders(pubhdr, fromstr)
 124                 fileheaders(privhdr, fromstr)
 125                 fileheaders(gencalls, fromstr)
 126                 once = 1
 127
 128                 pubfile = pubhdr
 129                 sub(".*/", "", pubfile)
 130
 131                 privfile = privhdr
 132                 sub(".*/", "", privfile)
 133
 134                 printf("\n") > pubhdr
 135                 printf("\n") > privhdr
 136
 137                 printf("\n#include <sys/cdefs.h>\n") > gencalls
 138                 printf("#include <sys/systm.h>\n") > gencalls
 139                 printf("\n#include <rump/rump.h>\n") > gencalls
 140                 printf("#include <rump/%s>\n\n", pubfile) > gencalls
 141                 printf("#include \"rump_private.h\"\n", privfile) > gencalls
 142                 printf("#include \"%s\"\n\n", privfile) > gencalls
 143                 printf("void __dead rump_%s_unavailable(void);\n",      \
 144                     myname) > gencalls
 145                 printf("void __dead\nrump_%s_unavailable(void)\n{\n",   \
 146                     myname) > gencalls
 147                 printf("\n\tpanic(\"%s interface unavailable\");\n}\n", \
 148                     myname) > gencalls
 149         }
 150
 151         funtype = $1
 152         sub("[ \t]*$", "", funtype)
 153         funname = $2
 154         sub("[ \t]*$", "", funname)
 155         funargs = $3
 156         sub("[ \t]*$", "", funargs)
 157
 158         printf("%s rump_pub_%s(%s);\n", funtype, funname, funargs) > pubhdr
 159         printf("%s rump_%s(%s);\n", funtype, funname, funargs) > privhdr
 160
 161         if (funtype == "void")
 162                 voidret = 1
 163         else
 164                 voidret = 0
 165         if (funargs == "void")
 166                 voidarg = 1
 167         else
 168                 voidarg = 0
 169
 170         printf("\n%s\nrump_pub_%s(", funtype, funname) > gencalls
 171         if (!voidarg) {
 172                 narg = split(funargs, argv, ",")
 173                 for (i = 1; i <= narg; i++) {
 174                         sub(" *", "", argv[i])
 175                         if (match(argv[i], "\\*$") != 0)
 176                                 printf("%sarg%d", argv[i], i) > gencalls
 177                         else
 178                                 printf("%s arg%d", argv[i], i) > gencalls
 179                         if (i != narg)
 180                                 printf(", ") > gencalls
 181                 }
 182         } else {
 183                 narg = 0
 184                 printf("void") > gencalls
 185         }
 186         printf(")\n{\n") > gencalls
 187
 188         if (!voidret) {
 189                 printf("\t%s rv;\n", funtype) > gencalls
 190         }
 191         printf("\n\trump_schedule();\n\t") > gencalls
 192         if (!voidret)
 193                 printf("rv = ") > gencalls
 194         printf("rump_%s(", funname) > gencalls
 195         for (i = 1; i <= narg; i++) {
 196                 printf("arg%i", i) > gencalls
 197                 if (i < narg)
 198                         printf(", ") > gencalls
 199         }
 200         printf(");\n\trump_unschedule();\n") > gencalls
 201         if (!voidret)
 202                 printf("\n\treturn rv;\n") > gencalls
 203         printf("}\n") > gencalls
 204         if (isweak)
 205                 printf("__weak_alias(rump_%s,rump_%s_unavailable);\n", \
 206                     funname, myname) > gencalls
 207 }'