bsd/kern/makesyscalls.sh

   1 #! /bin/sh -
   2 #       @(#)makesyscalls.sh     8.1 (Berkeley) 6/10/93
   3 # $FreeBSD: src/sys/kern/makesyscalls.sh,v 1.60 2003/04/01 01:12:24 jeff Exp $
   4 #
   5 # Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   6 #
   7 # @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   8 #
   9 # This file contains Original Code and/or Modifications of Original Code
  10 # as defined in and that are subject to the Apple Public Source License
  11 # Version 2.0 (the 'License'). You may not use this file except in
  12 # compliance with the License.  The rights granted to you under the
  13 # License may not be used to create, or enable the creation or
  14 # redistribution of, unlawful or unlicensed copies of an Apple operating
  15 # system, or to circumvent, violate, or enable the circumvention or
  16 # violation of, any terms of an Apple operating system software license
  17 # agreement.
  18 #
  19 # Please obtain a copy of the License at
  20 # http://www.opensource.apple.com/apsl/ and read it before using this
  21 # file.
  22 #
  23 # The Original Code and all software distributed under the License are
  24 # distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  25 # EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  26 # INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  27 # FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  28 # Please see the License for the specific language governing rights and
  29 # limitations under the License.
  30 #
  31 # @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  32 #
  33
  34 set -e
  35
  36 # output files:
  37 syscallnamesfile="syscalls.c"
  38 sysprotofile="../sys/sysproto.h"
  39 sysproto_h=_SYS_SYSPROTO_H_
  40 syshdrfile="../sys/syscall.h"
  41 syscall_h=_SYS_SYSCALL_H_
  42 syscalltablefile="init_sysent.c"
  43 syscallprefix="SYS_"
  44 switchname="sysent"
  45 namesname="syscallnames"
  46
  47 # tmp files:
  48 syslegal="sysent.syslegal.$$"
  49 sysent="sysent.switch.$$"
  50 sysinc="sysinc.switch.$$"
  51 sysarg="sysarg.switch.$$"
  52 sysprotoend="sysprotoend.$$"
  53 syscallnamestempfile="syscallnamesfile.$$"
  54 syshdrtempfile="syshdrtempfile.$$"
  55
  56 trap "rm $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile" 0
  57
  58 touch $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile
  59
  60 case $# in
  61     0)  echo "usage: $0 input-file <config-file>" 1>&2
  62         exit 1
  63         ;;
  64 esac
  65
  66 if [ -n "$2" -a -f "$2" ]; then
  67         . $2
  68 fi
  69
  70 sed -e '
  71 s/\$//g
  72 :join
  73         /\\$/{a\
  74
  75         N
  76         s/\\\n//
  77         b join
  78         }
  79 2,${
  80         /^#/!s/\([{}()*,]\)/ \1 /g
  81 }
  82 ' < $1 | awk "
  83         BEGIN {
  84                 syslegal = \"$syslegal\"
  85                 sysprotofile = \"$sysprotofile\"
  86                 sysprotoend = \"$sysprotoend\"
  87                 sysproto_h = \"$sysproto_h\"
  88                 syscall_h = \"$syscall_h\"
  89                 sysent = \"$sysent\"
  90                 syscalltablefile = \"$syscalltablefile\"
  91                 sysinc = \"$sysinc\"
  92                 sysarg = \"$sysarg\"
  93                 syscallnamesfile = \"$syscallnamesfile\"
  94                 syscallnamestempfile = \"$syscallnamestempfile\"
  95                 syshdrfile = \"$syshdrfile\"
  96                 syshdrtempfile = \"$syshdrtempfile\"
  97                 syscallprefix = \"$syscallprefix\"
  98                 switchname = \"$switchname\"
  99                 namesname = \"$namesname\"
 100                 infile = \"$1\"
 101                 "'
 102
 103                 printf "/*\n" > syslegal
 104                 printf " * Copyright (c) 2006 Apple Computer, Inc. All rights reserved.\n" > syslegal
 105                 printf " * \n" > syslegal
 106                 printf " * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ \n" > syslegal
 107                 printf " * \n" > syslegal
 108                 printf " * This file contains Original Code and/or Modifications of Original Code \n" > syslegal
 109                 printf " * as defined in and that are subject to the Apple Public Source License \n" > syslegal
 110                 printf " * Version 2.0 (the \"License\"). You may not use this file except in \n" > syslegal
 111                 printf " * compliance with the License.  The rights granted to you under the \n" > syslegal
 112                 printf " * License may not be used to create, or enable the creation or \n" > syslegal
 113                 printf " * redistribution of, unlawful or unlicensed copies of an Apple operating \n" > syslegal
 114                 printf " * system, or to circumvent, violate, or enable the circumvention or \n" > syslegal
 115                 printf " * violation of, any terms of an Apple operating system software license \n" > syslegal
 116                 printf " * agreement. \n" > syslegal
 117                 printf " * \n" > syslegal
 118                 printf " * Please obtain a copy of the License at \n" > syslegal
 119                 printf " * http://www.opensource.apple.com/apsl/ and read it before using this \n" > syslegal
 120                 printf " * file. \n" > syslegal
 121                 printf " * \n" > syslegal
 122                 printf " * The Original Code and all software distributed under the License are \n" > syslegal
 123                 printf " * distributed on an \"AS IS\" basis, WITHOUT WARRANTY OF ANY KIND, EITHER \n" > syslegal
 124                 printf " * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, \n" > syslegal
 125                 printf " * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, \n" > syslegal
 126                 printf " * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. \n" > syslegal
 127                 printf " * Please see the License for the specific language governing rights and \n" > syslegal
 128                 printf " * limitations under the License. \n" > syslegal
 129                 printf " * \n" > syslegal
 130                 printf " * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ \n" > syslegal
 131                 printf " * \n" > syslegal
 132                 printf " * \n" > syslegal
 133                 printf " * System call switch table.\n *\n" > syslegal
 134                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syslegal
 135                 printf " * created from %s\n */\n\n", infile > syslegal
 136         }
 137         NR == 1 {
 138                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 139                 printf "__private_extern__ struct sysent %s[] = {\n",switchname > sysent
 140
 141                 printf "#ifndef %s\n", sysproto_h > sysarg
 142                 printf "#define\t%s\n\n", sysproto_h > sysarg
 143                 printf "#ifndef %s\n", syscall_h > syshdrtempfile
 144                 printf "#define\t%s\n\n", syscall_h > syshdrtempfile
 145                 printf "#include <sys/appleapiopts.h>\n" > syshdrtempfile
 146                 printf "#ifdef __APPLE_API_PRIVATE\n" > syshdrtempfile
 147                 printf "#include <sys/appleapiopts.h>\n" > sysarg
 148                 printf "#include <sys/cdefs.h>\n" > sysarg
 149                 printf "#include <sys/mount_internal.h>\n" > sysarg
 150                 printf "#include <sys/types.h>\n" > sysarg
 151                 printf "#include <sys/sem_internal.h>\n" > sysarg
 152                 printf "#include <sys/semaphore.h>\n" > sysarg
 153                 printf "#include <sys/wait.h>\n" > sysarg
 154                 printf "#include <mach/shared_memory_server.h>\n" > sysarg
 155                 printf "\n#ifdef KERNEL\n" > sysarg
 156                 printf "#ifdef __APPLE_API_PRIVATE\n" > sysarg
 157                 printf "#define\tPAD_(t)\t(sizeof(uint64_t) <= sizeof(t) \\\n " > sysarg
 158                 printf "\t\t? 0 : sizeof(uint64_t) - sizeof(t))\n" > sysarg
 159                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 160                 printf "#define\tPADL_(t)\t0\n" > sysarg
 161                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 162                 printf "#else\n" > sysarg
 163                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 164                 printf "#define\tPADR_(t)\t0\n" > sysarg
 165                 printf "#endif\n" > sysarg
 166                 printf "\n__BEGIN_DECLS\n" > sysarg
 167                 printf "#ifndef __MUNGE_ONCE\n" > sysarg
 168                 printf "#define __MUNGE_ONCE\n" > sysarg
 169                 printf "void munge_w(const void *, void *);  \n" > sysarg
 170                 printf "void munge_ww(const void *, void *);  \n" > sysarg
 171                 printf "void munge_www(const void *, void *);  \n" > sysarg
 172                 printf "void munge_wwww(const void *, void *);  \n" > sysarg
 173                 printf "void munge_wwwww(const void *, void *);  \n" > sysarg
 174                 printf "void munge_wwwwww(const void *, void *);  \n" > sysarg
 175                 printf "void munge_wwwwwww(const void *, void *);  \n" > sysarg
 176                 printf "void munge_wwwwwwww(const void *, void *);  \n" > sysarg
 177                 printf "void munge_wl(const void *, void *);  \n" > sysarg
 178                 printf "void munge_wlw(const void *, void *);  \n" > sysarg
 179                 printf "void munge_wwwl(const void *, void *);  \n" > sysarg
 180                 printf "void munge_wwwlww(const void *, void *); \n" > sysarg
 181                 printf "void munge_wwwwl(const void *, void *);  \n" > sysarg
 182                 printf "void munge_wwwwwl(const void *, void *);  \n" > sysarg
 183                 printf "void munge_wsw(const void *, void *);  \n" > sysarg
 184                 printf "void munge_wws(const void *, void *);  \n" > sysarg
 185                 printf "void munge_wwwsw(const void *, void *);  \n" > sysarg
 186                 printf "#ifdef __ppc__\n" > sysarg
 187                 printf "void munge_d(const void *, void *);  \n" > sysarg
 188                 printf "void munge_dd(const void *, void *);  \n" > sysarg
 189                 printf "void munge_ddd(const void *, void *);  \n" > sysarg
 190                 printf "void munge_dddd(const void *, void *);  \n" > sysarg
 191                 printf "void munge_ddddd(const void *, void *);  \n" > sysarg
 192                 printf "void munge_dddddd(const void *, void *);  \n" > sysarg
 193                 printf "void munge_ddddddd(const void *, void *);  \n" > sysarg
 194                 printf "void munge_dddddddd(const void *, void *);  \n" > sysarg
 195                 printf "#else \n" > sysarg
 196                 printf "#define munge_d  NULL \n" > sysarg
 197                 printf "#define munge_dd  NULL \n" > sysarg
 198                 printf "#define munge_ddd  NULL \n" > sysarg
 199                 printf "#define munge_dddd  NULL \n" > sysarg
 200                 printf "#define munge_ddddd  NULL \n" > sysarg
 201                 printf "#define munge_dddddd  NULL \n" > sysarg
 202                 printf "#define munge_ddddddd  NULL \n" > sysarg
 203                 printf "#define munge_dddddddd  NULL \n" > sysarg
 204                 printf "#endif // __ppc__\n" > sysarg
 205                 printf "#endif /* !__MUNGE_ONCE */\n" > sysarg
 206
 207                 printf "\n" > sysarg
 208
 209                 printf "const char *%s[] = {\n", namesname > syscallnamestempfile
 210                 next
 211         }
 212         NF == 0 || $1 ~ /^;/ {
 213                 next
 214         }
 215         $1 ~ /^#[       ]*include/ {
 216                 print > sysinc
 217                 next
 218         }
 219         $1 ~ /^#[       ]*if/ {
 220                 print > sysent
 221                 print > sysarg
 222                 print > syscallnamestempfile
 223                 print > syshdrtempfile
 224                 print > sysprotoend
 225                 savesyscall = syscall
 226                 next
 227         }
 228         $1 ~ /^#[       ]*else/ {
 229                 print > sysent
 230                 print > sysarg
 231                 print > syscallnamestempfile
 232                 print > syshdrtempfile
 233                 print > sysprotoend
 234                 syscall = savesyscall
 235                 next
 236         }
 237         $1 ~ /^#/ {
 238                 print > sysent
 239                 print > sysarg
 240                 print > syscallnamestempfile
 241                 print > syshdrtempfile
 242                 print > sysprotoend
 243                 next
 244         }
 245         syscall != $1 {
 246                 printf "%s: line %d: syscall number out of sync at %d\n",
 247                     infile, NR, syscall
 248                 printf "line is:\n"
 249                 print
 250                 exit 1
 251         }
 252         function align_comment(linesize, location, thefile) {
 253                 printf(" ") > thefile
 254                 while (linesize < location) {
 255                         printf(" ") > thefile
 256                         linesize++
 257                 }
 258         }
 259         function parserr(was, wanted) {
 260                 printf "%s: line %d: unexpected %s (expected %s)\n",
 261                     infile, NR, was, wanted
 262                 exit 1
 263         }
 264
 265         function parseline() {
 266                 funcname = ""
 267                 current_field = 5
 268                 args_start = 0
 269                 args_end = 0
 270                 comments_start = 0
 271                 comments_end = 0
 272                 argc = 0
 273                 argssize = "0"
 274                 additional_comments = " "
 275
 276                 # find start and end of call name and arguments
 277                 if ($current_field != "{")
 278                         parserr($current_field, "{")
 279                 args_start = current_field
 280                 current_field++
 281                 while (current_field <= NF) {
 282                         if ($current_field == "}") {
 283                                 args_end = current_field
 284                                 break
 285                         }
 286                         current_field++
 287                 }
 288                 if (args_end == 0) {
 289                         printf "%s: line %d: invalid call name and arguments\n",
 290                         infile, NR
 291                         exit 1
 292                 }
 293
 294                 # find start and end of optional comments
 295                 current_field++
 296                 if (current_field < NF && $current_field == "{") {
 297                         comments_start = current_field
 298                         while (current_field <= NF) {
 299                                 if ($current_field == "}") {
 300                                         comments_end = current_field
 301                                         break
 302                                 }
 303                                 current_field++
 304                         }
 305                         if (comments_end == 0) {
 306                                 printf "%s: line %d: invalid comments \n",
 307                                         infile, NR
 308                                 exit 1
 309                         }
 310                 }
 311
 312                 if ($args_end != "}")
 313                         parserr($args_end, "}")
 314                 args_end--
 315                 if ($args_end != ";")
 316                         parserr($args_end, ";")
 317                 args_end--
 318                 if ($args_end != ")")
 319                         parserr($args_end, ")")
 320                 args_end--
 321
 322                 # extract additional comments
 323                 if (comments_start != 0) {
 324                         current_field = comments_start + 1
 325                         while (current_field < comments_end) {
 326                                 additional_comments = additional_comments $current_field " "
 327                                 current_field++
 328                         }
 329                 }
 330
 331                 # get function return type
 332                 current_field = args_start + 1
 333                 returntype = $current_field
 334
 335                 # get function name and set up to get arguments
 336                 current_field++
 337                 funcname = $current_field
 338                 argalias = funcname "_args"
 339                 current_field++ # bump past function name
 340
 341                 if ($current_field != "(")
 342                         parserr($current_field, "(")
 343                 current_field++
 344
 345                 if (current_field == args_end) {
 346                         if ($current_field != "void")
 347                                 parserr($current_field, "argument definition")
 348                         return
 349                 }
 350
 351                 # extract argument types and names
 352                 while (current_field <= args_end) {
 353                         argc++
 354                         argtype[argc]=""
 355                         ext_argtype[argc]=""
 356                         oldf=""
 357                         while (current_field < args_end && $(current_field + 1) != ",") {
 358                                 if (argtype[argc] != "" && oldf != "*") {
 359                                         argtype[argc] = argtype[argc] " ";
 360                                 }
 361                                 argtype[argc] = argtype[argc] $current_field;
 362                                 ext_argtype[argc] = argtype[argc];
 363                                 oldf = $current_field;
 364                                 current_field++
 365                         }
 366                         if (argtype[argc] == "")
 367                                 parserr($current_field, "argument definition")
 368                         argname[argc] = $current_field;
 369                         current_field += 2;                     # skip name, and any comma
 370                 }
 371                 if (argc > 8) {
 372                         printf "%s: line %d: too many arguments!\n", infile, NR
 373                         exit 1
 374                 }
 375                 if (argc != 0)
 376                         argssize = "AC(" argalias ")"
 377         }
 378
 379         {
 380                 add_sysent_entry = 1
 381                 add_sysnames_entry = 1
 382                 add_sysheader_entry = 1
 383                 add_sysproto_entry = 1
 384                 add_64bit_unsafe = 0
 385                 add_64bit_fakesafe = 0
 386                 add_cancel_enable = "0"
 387
 388                 if ($2 == "NONE") {
 389                         add_cancel_enable = "_SYSCALL_CANCEL_NONE"
 390                 }
 391                 else if ($2 == "PRE") {
 392                         add_cancel_enable = "_SYSCALL_CANCEL_PRE"
 393                 }
 394                 else if ($2 == "POST") {
 395                         add_cancel_enable = "_SYSCALL_CANCEL_POST"
 396                 }
 397                 else {
 398                         printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2
 399                         exit 1
 400
 401                 }
 402
 403                 if ($3 == "KERN") {
 404                         my_funnel = "KERNEL_FUNNEL"
 405                 }
 406                 else if ($3 == "NONE") {
 407                         my_funnel = "NO_FUNNEL"
 408                 }
 409                 else {
 410                         printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 411                         exit 1
 412                 }
 413
 414                 if ($4 != "ALL" && $4 != "UALL") {
 415                         files_keyword_OK = 0
 416                         add_sysent_entry = 0
 417                         add_sysnames_entry = 0
 418                         add_sysheader_entry = 0
 419                         add_sysproto_entry = 0
 420
 421                         if (match($4, "[T]") != 0) {
 422                                 add_sysent_entry = 1
 423                                 files_keyword_OK = 1
 424                         }
 425                         if (match($4, "[N]") != 0) {
 426                                 add_sysnames_entry = 1
 427                                 files_keyword_OK = 1
 428                         }
 429                         if (match($4, "[H]") != 0) {
 430                                 add_sysheader_entry = 1
 431                                 files_keyword_OK = 1
 432                         }
 433                         if (match($4, "[P]") != 0) {
 434                                 add_sysproto_entry = 1
 435                                 files_keyword_OK = 1
 436                         }
 437                         if (match($4, "[U]") != 0) {
 438                                 add_64bit_unsafe = 1
 439                         }
 440                         if (match($4, "[F]") != 0) {
 441                                 add_64bit_fakesafe = 1
 442                         }
 443
 444                         if (files_keyword_OK == 0) {
 445                                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $4
 446                                 exit 1
 447                         }
 448                 }
 449                 else if ($4 == "UALL") {
 450                         add_64bit_unsafe = 1;
 451                 }
 452
 453
 454                 parseline()
 455
 456                 # output function argument structures to sysproto.h and build the
 457                 # name of the appropriate argument mungers
 458                 munge32 = "NULL"
 459                 munge64 = "NULL"
 460                 if (funcname != "nosys" || (syscall == 0 && funcname == "nosys")) {
 461                         if (argc != 0) {
 462                                 if (add_sysproto_entry == 1) {
 463                                         printf("struct %s {\n", argalias) > sysarg
 464                                 }
 465                                 munge32 = "munge_"
 466                                 munge64 = "munge_"
 467                                 for (i = 1; i <= argc; i++) {
 468                                         # Build name of argument munger.
 469                                         # We account for all sys call argument types here.
 470                                         # This is where you add any new types.  With LP64 support
 471                                         # each argument consumes 64-bits.
 472                                         # see .../xnu/bsd/dev/ppc/munge.s for munge argument types.
 473                                         if (argtype[i] == "long") {
 474                                                 if (add_64bit_unsafe == 0)
 475                                                         ext_argtype[i] = "user_long_t";
 476                                                 munge32 = munge32 "s"
 477                                                 munge64 = munge64 "d"
 478                                         }
 479                                         else if (argtype[i] == "u_long") {
 480                                                 if (add_64bit_unsafe == 0)
 481                                                         ext_argtype[i] = "user_ulong_t";
 482                                                 munge32 = munge32 "w"
 483                                                 munge64 = munge64 "d"
 484                                         }
 485                                         else if (argtype[i] == "size_t") {
 486                                                 if (add_64bit_unsafe == 0)
 487                                                         ext_argtype[i] = "user_size_t";
 488                                                 munge32 = munge32 "w"
 489                                                 munge64 = munge64 "d"
 490                                         }
 491                                         else if (argtype[i] == "ssize_t") {
 492                                                 if (add_64bit_unsafe == 0)
 493                                                         ext_argtype[i] = "user_ssize_t";
 494                                                 munge32 = munge32 "s"
 495                                                 munge64 = munge64 "d"
 496                                         }
 497                                         else if (argtype[i] == "user_ssize_t" || argtype[i] == "user_long_t") {
 498                                                 munge32 = munge32 "s"
 499                                                 munge64 = munge64 "d"
 500                                         }
 501                                         else if (argtype[i] == "user_addr_t" || argtype[i] == "user_size_t" ||
 502                                                 argtype[i] == "user_ulong_t") {
 503                                                 munge32 = munge32 "w"
 504                                                 munge64 = munge64 "d"
 505                                         }
 506                                         else if (argtype[i] == "caddr_t" || argtype[i] == "semun_t" ||
 507                                                 match(argtype[i], "[\*]") != 0) {
 508                                                 if (add_64bit_unsafe == 0)
 509                                                         ext_argtype[i] = "user_addr_t";
 510                                                 munge32 = munge32 "w"
 511                                                 munge64 = munge64 "d"
 512                                         }
 513                                         else if (argtype[i] == "int" || argtype[i] == "u_int" ||
 514                                                          argtype[i] == "uid_t" || argtype[i] == "pid_t" ||
 515                                                          argtype[i] == "id_t" || argtype[i] == "idtype_t" ||
 516                                                          argtype[i] == "socklen_t" || argtype[i] == "uint32_t" || argtype[i] == "int32_t" ||
 517                                                          argtype[i] == "sigset_t" || argtype[i] == "gid_t" ||
 518                                                          argtype[i] == "mode_t" || argtype[i] == "key_t" || argtype[i] == "time_t") {
 519                                                 munge32 = munge32 "w"
 520                                                 munge64 = munge64 "d"
 521                                         }
 522                                         else if (argtype[i] == "off_t" || argtype[i] == "int64_t" || argtype[i] == "uint64_t") {
 523                                                 munge32 = munge32 "l"
 524                                                 munge64 = munge64 "d"
 525                                         }
 526                                         else {
 527                                                 printf "%s: line %d: invalid type \"%s\" \n",
 528                                                         infile, NR, argtype[i]
 529                                                 printf "You need to add \"%s\" into the type checking code. \n",
 530                                                          argtype[i]
 531                                                 exit 1
 532                                         }
 533                                         if (add_sysproto_entry == 1) {
 534                                                 printf("\tchar %s_l_[PADL_(%s)]; " \
 535                                                         "%s %s; char %s_r_[PADR_(%s)];\n",
 536                                                         argname[i], ext_argtype[i],
 537                                                         ext_argtype[i], argname[i],
 538                                                         argname[i], ext_argtype[i]) > sysarg
 539                                         }
 540                                 }
 541                                 if (add_sysproto_entry == 1) {
 542                                         printf("};\n") > sysarg
 543                                 }
 544                         }
 545                         else if (add_sysproto_entry == 1) {
 546                                 printf("struct %s {\n\tregister_t dummy;\n};\n", argalias) > sysarg
 547                         }
 548                 }
 549
 550                 # output to init_sysent.c
 551                 tempname = funcname
 552                 if (add_sysent_entry == 0) {
 553                         argssize = "0"
 554                         munge32 = "NULL"
 555                         munge64 = "NULL"
 556                         munge_ret = "_SYSCALL_RET_NONE"
 557                         tempname = "nosys"
 558                 }
 559                 else {
 560                         # figure out which return value type to munge
 561                         if (returntype == "user_addr_t") {
 562                                 munge_ret = "_SYSCALL_RET_ADDR_T"
 563                         }
 564                         else if (returntype == "user_ssize_t") {
 565                                 munge_ret = "_SYSCALL_RET_SSIZE_T"
 566                         }
 567                         else if (returntype == "user_size_t") {
 568                                 munge_ret = "_SYSCALL_RET_SIZE_T"
 569                         }
 570                         else if (returntype == "int") {
 571                                 munge_ret = "_SYSCALL_RET_INT_T"
 572                         }
 573                         else if (returntype == "u_int") {
 574                                 munge_ret = "_SYSCALL_RET_UINT_T"
 575                         }
 576                         else if (returntype == "off_t") {
 577                                 munge_ret = "_SYSCALL_RET_OFF_T"
 578                         }
 579                         else if (returntype == "void") {
 580                                 munge_ret = "_SYSCALL_RET_NONE"
 581                         }
 582                         else {
 583                                 printf "%s: line %d: invalid return type \"%s\" \n",
 584                                         infile, NR, returntype
 585                                 printf "You need to add \"%s\" into the return type checking code. \n",
 586                                          returntype
 587                                 exit 1
 588                         }
 589                 }
 590
 591                 if (add_64bit_unsafe == 1  && add_64bit_fakesafe == 0)
 592                         my_funnel = my_funnel "|UNSAFE_64BIT";
 593
 594                 printf("\t{%s, %s, %s, \(sy_call_t *\)%s, %s, %s, %s},",
 595                                 argssize, add_cancel_enable, my_funnel, tempname, munge32, munge64, munge_ret) > sysent
 596                 linesize = length(argssize) + length(add_cancel_enable) + length(my_funnel) + length(tempname) + \
 597                                 length(munge32) + length(munge64) + length(munge_ret) + 28
 598                 align_comment(linesize, 88, sysent)
 599                 printf("/* %d = %s%s*/\n", syscall, funcname, additional_comments) > sysent
 600
 601                 # output to syscalls.c
 602                 if (add_sysnames_entry == 1) {
 603                         tempname = funcname
 604                         if (funcname == "nosys") {
 605                                 if (syscall == 0)
 606                                         tempname = "syscall"
 607                                 else
 608                                         tempname = "#" syscall
 609                         }
 610                         printf("\t\"%s\", ", tempname) > syscallnamestempfile
 611                         linesize = length(tempname) + 8
 612                         align_comment(linesize, 25, syscallnamestempfile)
 613                         if (substr(tempname,1,1) == "#") {
 614                                 printf("/* %d =%s*/\n", syscall, additional_comments) > syscallnamestempfile
 615                         }
 616                         else {
 617                                 printf("/* %d = %s%s*/\n", syscall, tempname, additional_comments) > syscallnamestempfile
 618                         }
 619                 }
 620
 621                 # output to syscalls.h
 622                 if (add_sysheader_entry == 1) {
 623                         tempname = funcname
 624                         if (syscall == 0) {
 625                                 tempname = "syscall"
 626                         }
 627                         if (tempname != "nosys") {
 628                                 printf("#define\t%s%s", syscallprefix, tempname) > syshdrtempfile
 629                                 linesize = length(syscallprefix) + length(tempname) + 12
 630                                 align_comment(linesize, 30, syshdrtempfile)
 631                                 printf("%d\n", syscall) > syshdrtempfile
 632                                 # special case for gettimeofday on ppc - cctools project uses old name
 633                                 if (tempname == "ppc_gettimeofday") {
 634                                         printf("#define\t%s%s", syscallprefix, "gettimeofday") > syshdrtempfile
 635                                         linesize = length(syscallprefix) + length(tempname) + 12
 636                                         align_comment(linesize, 30, syshdrtempfile)
 637                                         printf("%d\n", syscall) > syshdrtempfile
 638                                 }
 639                         }
 640                         else {
 641                                 printf("\t\t\t/* %d %s*/\n", syscall, additional_comments) > syshdrtempfile
 642                         }
 643                 }
 644
 645                 # output function prototypes to sysproto.h
 646                 if (add_sysproto_entry == 1) {
 647                         if (funcname =="exit") {
 648                                 printf("void %s(struct proc *, struct %s *, int *);\n",
 649                                                 funcname, argalias) > sysprotoend
 650                         }
 651                         else if (funcname != "nosys" || (syscall == 0 && funcname == "nosys")) {
 652                                 printf("int %s(struct proc *, struct %s *, %s *);\n",
 653                                                 funcname, argalias, returntype) > sysprotoend
 654                         }
 655                 }
 656
 657                 syscall++
 658                 next
 659         }
 660
 661         END {
 662                 printf "#define AC(name) (sizeof(struct name) / sizeof(uint64_t))\n" > sysinc
 663                 printf "\n" > sysinc
 664
 665                 printf("\n__END_DECLS\n") > sysprotoend
 666                 printf("#undef PAD_\n") > sysprotoend
 667                 printf("#undef PADL_\n") > sysprotoend
 668                 printf("#undef PADR_\n") > sysprotoend
 669                 printf "\n#endif /* __APPLE_API_PRIVATE */\n" > sysprotoend
 670                 printf "#endif /* KERNEL */\n" > sysprotoend
 671                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 672
 673                 printf("};\n") > sysent
 674                 printf("int     nsysent = sizeof(sysent) / sizeof(sysent[0]);\n") > sysent
 675
 676                 printf("};\n") > syscallnamestempfile
 677                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 678                     > syshdrtempfile
 679                 printf("\n#endif /* __APPLE_API_PRIVATE */\n") > syshdrtempfile
 680                 printf("#endif /* !%s */\n", syscall_h) > syshdrtempfile
 681         } '
 682
 683 cat $syslegal $sysinc $sysent > $syscalltablefile
 684 cat $syslegal $sysarg $sysprotoend > $sysprotofile
 685 cat $syslegal $syscallnamestempfile > $syscallnamesfile
 686 cat $syslegal $syshdrtempfile > $syshdrfile