1#!/bin/sh 2# 3# $NetBSD: makerumpif.sh,v 1.10 2016/01/26 23:21:18 pooka Exp $ 4# 5# Copyright (c) 2009, 2015 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 36usage () 37{ 38 39 echo "usage: $0 spec" 40 exit 1 41} 42 43boom () 44{ 45 46 echo $* 47 exit 1 48} 49 50unset TOPDIR 51if [ $# -eq 3 ]; then 52 if [ $1 = '-R' ]; then 53 TOPDIR=$2 54 else 55 usage 56 fi 57 shift; shift 58fi 59[ $# -ne 1 ] && usage 60 61MYDIR=`pwd` 62if [ -z "${TOPDIR}" ]; then 63 while [ ! -f Makefile.rump ]; do 64 [ `pwd` = '/' ] && boom Could not find rump topdir. 65 cd .. 66 done 67 TOPDIR="`pwd`" 68fi 69cd ${MYDIR} 70 71sed -e ' 72:again 73 /\\$/{ 74 N 75 s/[ ]*\\\n[ ]*/ / 76 b again 77 } 78' ${1} | awk -F\| -v topdir=${TOPDIR} ' 79function fileheaders(file, srcstr) 80{ 81 printf("/*\t$NetBSD: makerumpif.sh,v 1.10 2016/01/26 23:21:18 pooka Exp $\t*/\n\n") > file 82 printf("/*\n * Automatically generated. DO NOT EDIT.\n") > file 83 genstr = "$NetBSD: makerumpif.sh,v 1.10 2016/01/26 23:21:18 pooka Exp $" 84 gsub("\\$", "", genstr) 85 printf(" * from: %s\n", srcstr) > file 86 printf(" * by: %s\n", genstr) > file 87 printf(" */\n") > file 88} 89 90function die(str) 91{ 92 93 print str 94 exit(1) 95} 96 97NR == 1 { 98 sub(";[^\\$]*\\$", "") 99 sub("\\$", "") 100 fromstr = $0 101 next 102} 103 104$1 == "NAME"{myname = $2;next} 105$1 == "PUBHDR"{pubhdr = topdir "/" $2;print pubhdr;next} 106$1 == "PRIVHDR"{privhdr = topdir "/" $2;print privhdr;next} 107$1 == "WRAPPERS"{gencalls = topdir "/" $2;print gencalls;next} 108 109/^;/{next} 110/\\$/{sub("\\\n", "");getline nextline;$0 = $0 nextline} 111/^[ \t]*$/{next} 112{ 113 if (NF != 3 && NF != 4) { 114 die("error: unexpected number of fields\n") 115 } 116 isweak = 0 117 iscompat = 0 118 if (NF == 4) { 119 if ($4 == "WEAK") { 120 isweak = 1 121 } else if (match($4, "COMPAT_")) { 122 iscompat = 1 123 compat = $4 124 } else { 125 die("error: unexpected fourth field"); 126 } 127 } 128 if (!myname) 129 die("name not specified"); 130 if (!pubhdr) 131 die("public header not specified"); 132 if (!privhdr) 133 die("private header not specified"); 134 if (!gencalls) 135 die("wrapper file not specified"); 136 137 if (!once) { 138 fileheaders(pubhdr, fromstr) 139 fileheaders(privhdr, fromstr) 140 fileheaders(gencalls, fromstr) 141 once = 1 142 143 pubfile = pubhdr 144 sub(".*/", "", pubfile) 145 146 privfile = privhdr 147 sub(".*/", "", privfile) 148 149 printf("\n") > pubhdr 150 printf("\n") > privhdr 151 152 printf("#ifndef _RUMP_PRIF_%s_H_\n", toupper(myname)) > privhdr 153 printf("#define _RUMP_PRIF_%s_H_\n", toupper(myname)) > privhdr 154 printf("\n") > privhdr 155 156 printf("\n#include <sys/cdefs.h>\n") > gencalls 157 printf("#include <sys/systm.h>\n\n") > gencalls 158 printf("#include <rump-sys/kern.h>\n", privfile) > gencalls 159 printf("#include <rump-sys/%s>\n\n", privfile) > gencalls 160 printf("#include <rump/rump.h>\n") > gencalls 161 printf("#include <rump/%s>\n\n", pubfile) > gencalls 162 printf("void __dead rump_%s_unavailable(void);\n", \ 163 myname) > gencalls 164 printf("void __dead\nrump_%s_unavailable(void)\n{\n", \ 165 myname) > gencalls 166 printf("\n\tpanic(\"%s interface unavailable\");\n}\n", \ 167 myname) > gencalls 168 } 169 170 funtype = $1 171 sub("[ \t]*$", "", funtype) 172 funname = $2 173 sub("[ \t]*$", "", funname) 174 funargs = $3 175 sub("[ \t]*$", "", funargs) 176 177 printf("%s rump_pub_%s(%s);\n", funtype, funname, funargs) > pubhdr 178 printf("%s rump_%s(%s);\n", funtype, funname, funargs) > privhdr 179 printf("typedef %s (*rump_%s_fn)(%s);\n", \ 180 funtype, funname, funargs) > privhdr 181 182 if (funtype == "void") 183 voidret = 1 184 else 185 voidret = 0 186 if (funargs == "void") 187 voidarg = 1 188 else 189 voidarg = 0 190 191 printf("\n") > gencalls 192 if (iscompat) { 193 printf("#ifdef %s\n", compat) > gencalls 194 } 195 196 printf("%s\nrump_pub_%s(", funtype, funname) > gencalls 197 if (!voidarg) { 198 narg = split(funargs, argv, ",") 199 for (i = 1; i <= narg; i++) { 200 sub(" *", "", argv[i]) 201 if (match(argv[i], "\\*$") != 0) 202 printf("%sarg%d", argv[i], i) > gencalls 203 else 204 printf("%s arg%d", argv[i], i) > gencalls 205 if (i != narg) 206 printf(", ") > gencalls 207 } 208 } else { 209 narg = 0 210 printf("void") > gencalls 211 } 212 printf(")\n{\n") > gencalls 213 214 if (!voidret) { 215 printf("\t%s rv;\n", funtype) > gencalls 216 } 217 printf("\n\trump_schedule();\n\t") > gencalls 218 if (!voidret) 219 printf("rv = ") > gencalls 220 printf("rump_%s(", funname) > gencalls 221 for (i = 1; i <= narg; i++) { 222 printf("arg%i", i) > gencalls 223 if (i < narg) 224 printf(", ") > gencalls 225 } 226 printf(");\n\trump_unschedule();\n") > gencalls 227 if (!voidret) 228 printf("\n\treturn rv;\n") > gencalls 229 printf("}\n") > gencalls 230 if (iscompat) { 231 printf("#else\n") > gencalls 232 printf("__strong_alias(rump_pub_%s,rump_%s_unavailable);\n", \ 233 funname, myname) > gencalls 234 printf("#endif /* %s */\n", compat) > gencalls 235 } 236 if (isweak) 237 printf("__weak_alias(rump_%s,rump_%s_unavailable);\n", \ 238 funname, myname) > gencalls 239} 240 241END { printf("\n#endif /* _RUMP_PRIF_%s_H_ */\n", toupper(myname)) > privhdr }' 242