sys/kern/makesyscalls.sh

   1 #! /bin/sh -
   2 #       @(#)makesyscalls.sh     8.1 (Berkeley) 6/10/93
   3 # $FreeBSD$
   4
   5 set -e
   6
   7 # name of compat options:
   8 compat=COMPAT_43
   9 compat4=COMPAT_FREEBSD4
  10 compat6=COMPAT_FREEBSD6
  11 compat7=COMPAT_FREEBSD7
  12
  13 # output files:
  14 sysnames="syscalls.c"
  15 sysproto="../sys/sysproto.h"
  16 sysproto_h=_SYS_SYSPROTO_H_
  17 syshdr="../sys/syscall.h"
  18 sysmk="../sys/syscall.mk"
  19 syssw="init_sysent.c"
  20 syscallprefix="SYS_"
  21 switchname="sysent"
  22 namesname="syscallnames"
  23 systrace="systrace_args.c"
  24
  25 # tmp files:
  26 sysaue="sysent.aue.$$"
  27 sysdcl="sysent.dcl.$$"
  28 syscompat="sysent.compat.$$"
  29 syscompatdcl="sysent.compatdcl.$$"
  30 syscompat4="sysent.compat4.$$"
  31 syscompat4dcl="sysent.compat4dcl.$$"
  32 syscompat6="sysent.compat6.$$"
  33 syscompat6dcl="sysent.compat6dcl.$$"
  34 syscompat7="sysent.compat7.$$"
  35 syscompat7dcl="sysent.compat7dcl.$$"
  36 sysent="sysent.switch.$$"
  37 sysinc="sysinc.switch.$$"
  38 sysarg="sysarg.switch.$$"
  39 sysprotoend="sysprotoend.$$"
  40 systracetmp="systrace.$$"
  41
  42 if [ -r capabilities.conf ]; then
  43         capenabled=`cat capabilities.conf | grep -v "^#" | grep -v "^$"`
  44         capenabled=`echo $capenabled | sed 's/ /,/g'`
  45 else
  46         capenabled=""
  47 fi
  48
  49 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp" 0
  50
  51 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp
  52
  53 case $# in
  54     0)  echo "usage: $0 input-file <config-file>" 1>&2
  55         exit 1
  56         ;;
  57 esac
  58
  59 if [ -n "$2" -a -f "$2" ]; then
  60         . $2
  61 fi
  62
  63 sed -e '
  64 s/\$//g
  65 :join
  66         /\\$/{a\
  67
  68         N
  69         s/\\\n//
  70         b join
  71         }
  72 2,${
  73         /^#/!s/\([{}()*,]\)/ \1 /g
  74 }
  75 ' < $1 | awk "
  76         BEGIN {
  77                 sysaue = \"$sysaue\"
  78                 sysdcl = \"$sysdcl\"
  79                 sysproto = \"$sysproto\"
  80                 sysprotoend = \"$sysprotoend\"
  81                 sysproto_h = \"$sysproto_h\"
  82                 syscompat = \"$syscompat\"
  83                 syscompatdcl = \"$syscompatdcl\"
  84                 syscompat4 = \"$syscompat4\"
  85                 syscompat4dcl = \"$syscompat4dcl\"
  86                 syscompat6 = \"$syscompat6\"
  87                 syscompat6dcl = \"$syscompat6dcl\"
  88                 syscompat7 = \"$syscompat7\"
  89                 syscompat7dcl = \"$syscompat7dcl\"
  90                 sysent = \"$sysent\"
  91                 syssw = \"$syssw\"
  92                 sysinc = \"$sysinc\"
  93                 sysarg = \"$sysarg\"
  94                 sysnames = \"$sysnames\"
  95                 syshdr = \"$syshdr\"
  96                 sysmk = \"$sysmk\"
  97                 systrace = \"$systrace\"
  98                 systracetmp = \"$systracetmp\"
  99                 compat = \"$compat\"
 100                 compat4 = \"$compat4\"
 101                 compat6 = \"$compat6\"
 102                 compat7 = \"$compat7\"
 103                 syscallprefix = \"$syscallprefix\"
 104                 switchname = \"$switchname\"
 105                 namesname = \"$namesname\"
 106                 infile = \"$1\"
 107                 capenabled_string = \"$capenabled\"
 108                 "'
 109
 110                 split(capenabled_string, capenabled, ",");
 111
 112                 printf "/*\n * System call switch table.\n *\n" > syssw
 113                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
 114                 printf " * $%s$\n", "FreeBSD" > syssw
 115
 116                 printf "/*\n * System call prototypes.\n *\n" > sysarg
 117                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
 118                 printf " * $%s$\n", "FreeBSD" > sysarg
 119
 120                 printf "\n#ifdef %s\n\n", compat > syscompat
 121                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
 122                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
 123                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
 124
 125                 printf "/*\n * System call names.\n *\n" > sysnames
 126                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
 127                 printf " * $%s$\n", "FreeBSD" > sysnames
 128
 129                 printf "/*\n * System call numbers.\n *\n" > syshdr
 130                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
 131                 printf " * $%s$\n", "FreeBSD" > syshdr
 132                 printf "# FreeBSD system call names.\n" > sysmk
 133                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
 134                 printf "# $%s$\n", "FreeBSD" > sysmk
 135
 136                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
 137                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
 138                 printf " * $%s$\n", "FreeBSD" > systrace
 139         }
 140         NR == 1 {
 141                 gsub("[$]FreeBSD: ", "", $0)
 142                 gsub(" [$]", "", $0)
 143
 144                 printf " * created from%s\n */\n\n", $0 > syssw
 145
 146                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 147                 printf "struct sysent %s[] = {\n",switchname > sysent
 148
 149                 printf " * created from%s\n */\n\n", $0 > sysarg
 150                 printf "#ifndef %s\n", sysproto_h > sysarg
 151                 printf "#define\t%s\n\n", sysproto_h > sysarg
 152                 printf "#include <sys/signal.h>\n" > sysarg
 153                 printf "#include <sys/acl.h>\n" > sysarg
 154                 printf "#include <sys/cpuset.h>\n" > sysarg
 155                 printf "#include <sys/_semaphore.h>\n" > sysarg
 156                 printf "#include <sys/ucontext.h>\n\n" > sysarg
 157                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
 158                 printf "struct proc;\n\n" > sysarg
 159                 printf "struct thread;\n\n" > sysarg
 160                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 161                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 162                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 163                 printf "#define\tPADL_(t)\t0\n" > sysarg
 164                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 165                 printf "#else\n" > sysarg
 166                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 167                 printf "#define\tPADR_(t)\t0\n" > sysarg
 168                 printf "#endif\n\n" > sysarg
 169
 170                 printf " * created from%s\n */\n\n", $0 > sysnames
 171                 printf "const char *%s[] = {\n", namesname > sysnames
 172
 173                 printf " * created from%s\n */\n\n", $0 > syshdr
 174
 175                 printf "# created from%s\nMIASM = ", $0 > sysmk
 176
 177                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
 178                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
 179                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
 180                 printf "\tswitch (sysnum) {\n" > systrace
 181
 182                 printf "static void\nsystrace_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
 183                 printf "\tswitch (sysnum) {\n" > systracetmp
 184
 185                 next
 186         }
 187         NF == 0 || $1 ~ /^;/ {
 188                 next
 189         }
 190         $1 ~ /^#[       ]*include/ {
 191                 print > sysinc
 192                 next
 193         }
 194         $1 ~ /^#[       ]*if/ {
 195                 print > sysent
 196                 print > sysdcl
 197                 print > sysarg
 198                 print > syscompat
 199                 print > syscompat4
 200                 print > syscompat6
 201                 print > syscompat7
 202                 print > sysnames
 203                 print > systrace
 204                 print > systracetmp
 205                 savesyscall = syscall
 206                 next
 207         }
 208         $1 ~ /^#[       ]*else/ {
 209                 print > sysent
 210                 print > sysdcl
 211                 print > sysarg
 212                 print > syscompat
 213                 print > syscompat4
 214                 print > syscompat6
 215                 print > syscompat7
 216                 print > sysnames
 217                 print > systrace
 218                 print > systracetmp
 219                 syscall = savesyscall
 220                 next
 221         }
 222         $1 ~ /^#/ {
 223                 print > sysent
 224                 print > sysdcl
 225                 print > sysarg
 226                 print > syscompat
 227                 print > syscompat4
 228                 print > syscompat6
 229                 print > syscompat7
 230                 print > sysnames
 231                 print > systrace
 232                 print > systracetmp
 233                 next
 234         }
 235         syscall != $1 {
 236                 printf "%s: line %d: syscall number out of sync at %d\n",
 237                     infile, NR, syscall
 238                 printf "line is:\n"
 239                 print
 240                 exit 1
 241         }
 242         # Returns true if the type "name" is the first flag in the type field
 243         function type(name, flags, n) {
 244                 n = split($3, flags, /\|/)
 245                 return (n > 0 && flags[1] == name)
 246         }
 247         # Returns true if the flag "name" is set in the type field
 248         function flag(name, flags, i, n) {
 249                 n = split($3, flags, /\|/)
 250                 for (i = 1; i <= n; i++)
 251                         if (flags[i] == name)
 252                                 return 1
 253                 return 0
 254         }
 255         function align_sysent_comment(column) {
 256                 printf("\t") > sysent
 257                 column = column + 8 - column % 8
 258                 while (column < 56) {
 259                         printf("\t") > sysent
 260                         column = column + 8
 261                 }
 262         }
 263         function parserr(was, wanted) {
 264                 printf "%s: line %d: unexpected %s (expected %s)\n",
 265                     infile, NR, was, wanted
 266                 exit 1
 267         }
 268         function parseline() {
 269                 f=4                     # toss number, type, audit event
 270                 argc= 0;
 271                 argssize = "0"
 272                 thr_flag = "SY_THR_STATIC"
 273                 if (flag("NOTSTATIC")) {
 274                         thr_flag = "SY_THR_ABSENT"
 275                 }
 276                 if ($NF != "}") {
 277                         funcalias=$(NF-2)
 278                         argalias=$(NF-1)
 279                         rettype=$NF
 280                         end=NF-3
 281                 } else {
 282                         funcalias=""
 283                         argalias=""
 284                         rettype="int"
 285                         end=NF
 286                 }
 287                 if (flag("NODEF")) {
 288                         auditev="AUE_NULL"
 289                         funcname=$4
 290                         argssize = "AS(" $6 ")"
 291                         return
 292                 }
 293                 if ($f != "{")
 294                         parserr($f, "{")
 295                 f++
 296                 if ($end != "}")
 297                         parserr($end, "}")
 298                 end--
 299                 if ($end != ";")
 300                         parserr($end, ";")
 301                 end--
 302                 if ($end != ")")
 303                         parserr($end, ")")
 304                 end--
 305
 306                 f++     #function return type
 307
 308                 funcname=$f
 309
 310                 #
 311                 # We now know the func name, so define a flags field for it.
 312                 # Do this before any other processing as we may return early
 313                 # from it.
 314                 #
 315                 for (cap in capenabled) {
 316                         if (funcname == capenabled[cap]) {
 317                                 flags = "SYF_CAPENABLED";
 318                         }
 319                 }
 320
 321                 if (funcalias == "")
 322                         funcalias = funcname
 323                 if (argalias == "") {
 324                         argalias = funcname "_args"
 325                         if (flag("COMPAT"))
 326                                 argalias = "o" argalias
 327                         if (flag("COMPAT4"))
 328                                 argalias = "freebsd4_" argalias
 329                         if (flag("COMPAT6"))
 330                                 argalias = "freebsd6_" argalias
 331                         if (flag("COMPAT7"))
 332                                 argalias = "freebsd7_" argalias
 333                 }
 334                 f++
 335
 336                 if ($f != "(")
 337                         parserr($f, ")")
 338                 f++
 339
 340                 if (f == end) {
 341                         if ($f != "void")
 342                                 parserr($f, "argument definition")
 343                         return
 344                 }
 345
 346                 while (f <= end) {
 347                         argc++
 348                         argtype[argc]=""
 349                         oldf=""
 350                         while (f < end && $(f+1) != ",") {
 351                                 if (argtype[argc] != "" && oldf != "*")
 352                                         argtype[argc] = argtype[argc]" ";
 353                                 argtype[argc] = argtype[argc]$f;
 354                                 oldf = $f;
 355                                 f++
 356                         }
 357                         if (argtype[argc] == "")
 358                                 parserr($f, "argument definition")
 359                         argname[argc]=$f;
 360                         f += 2;                 # skip name, and any comma
 361                 }
 362                 if (argc != 0)
 363                         argssize = "AS(" argalias ")"
 364         }
 365         {       comment = $4
 366                 if (NF < 7)
 367                         for (i = 5; i <= NF; i++)
 368                                 comment = comment " " $i
 369         }
 370
 371         #
 372         # The AUE_ audit event identifier.
 373         #
 374         {
 375                 auditev = $2;
 376         }
 377
 378         #
 379         # The flags, if any.
 380         #
 381         {
 382                 flags = "0";
 383         }
 384
 385         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 386             || type("NOSTD") {
 387                 parseline()
 388                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 389                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 390                 if (argc > 0) {
 391                         printf("\t\tswitch(ndx) {\n") > systracetmp
 392                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 393                         for (i = 1; i <= argc; i++) {
 394                                 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, argtype[i]) > systracetmp
 395                                 if (index(argtype[i], "*") > 0 || argtype[i] == "caddr_t")
 396                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 397                                              i - 1, \
 398                                              argname[i], argtype[i]) > systrace
 399                                 else if (substr(argtype[i], 1, 1) == "u" || argtype[i] == "size_t")
 400                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 401                                              i - 1, \
 402                                              argname[i], argtype[i]) > systrace
 403                                 else
 404                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 405                                              i - 1, \
 406                                              argname[i], argtype[i]) > systrace
 407                         }
 408                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 409                 }
 410                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 411                 printf("\t\tbreak;\n") > systracetmp
 412                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 413                     !flag("NODEF")) {
 414                         printf("struct %s {\n", argalias) > sysarg
 415                         for (i = 1; i <= argc; i++)
 416                                 printf("\tchar %s_l_[PADL_(%s)]; " \
 417                                     "%s %s; char %s_r_[PADR_(%s)];\n",
 418                                     argname[i], argtype[i],
 419                                     argtype[i], argname[i],
 420                                     argname[i], argtype[i]) > sysarg
 421                         printf("};\n") > sysarg
 422                 }
 423                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 424                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 425                             argalias) > sysarg
 426                 if (!flag("NOPROTO") && !flag("NODEF")) {
 427                         if (funcname == "nosys" || funcname == "lkmnosys" ||
 428                             funcname == "sysarch" || funcname ~ /^freebsd/ ||
 429                             funcname ~ /^linux/ || funcname ~ /^svr4/ ||
 430                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/) {
 431                                 printf("%s\t%s(struct thread *, struct %s *)",
 432                                     rettype, funcname, argalias) > sysdcl
 433                         } else {
 434                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 435                                     rettype, funcname, argalias) > sysdcl
 436                         }
 437                         printf(";\n") > sysdcl
 438                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 439                             funcalias, auditev) > sysaue
 440                 }
 441                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 442                 column = 8 + 2 + length(argssize) + 15
 443                 if (flag("NOSTD")) {
 444                         printf("%s },", "lkmressys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT") > sysent
 445                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 446                 } else {
 447                         if (funcname == "nosys" || funcname == "sysarch" ||
 448                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 449                             funcname ~ /^linux/ || funcname ~ /^svr4/ ||
 450                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/) {
 451                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 452                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 453                         } else {
 454                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 455                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 456                         }
 457                 }
 458                 align_sysent_comment(column)
 459                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 460                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 461                     funcalias, syscall, funcalias) > sysnames
 462                 if (!flag("NODEF")) {
 463                         printf("#define\t%s%s\t%d\n", syscallprefix,
 464                             funcalias, syscall) > syshdr
 465                         printf(" \\\n\t%s.o", funcalias) > sysmk
 466                 }
 467                 syscall++
 468                 next
 469         }
 470         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 471             type("COMPAT7") {
 472                 if (flag("COMPAT")) {
 473                         ncompat++
 474                         out = syscompat
 475                         outdcl = syscompatdcl
 476                         wrap = "compat"
 477                         prefix = "o"
 478                         descr = "old"
 479                 } else if (flag("COMPAT4")) {
 480                         ncompat4++
 481                         out = syscompat4
 482                         outdcl = syscompat4dcl
 483                         wrap = "compat4"
 484                         prefix = "freebsd4_"
 485                         descr = "freebsd4"
 486                 } else if (flag("COMPAT6")) {
 487                         ncompat6++
 488                         out = syscompat6
 489                         outdcl = syscompat6dcl
 490                         wrap = "compat6"
 491                         prefix = "freebsd6_"
 492                         descr = "freebsd6"
 493                 } else if (flag("COMPAT7")) {
 494                         ncompat7++
 495                         out = syscompat7
 496                         outdcl = syscompat7dcl
 497                         wrap = "compat7"
 498                         prefix = "freebsd7_"
 499                         descr = "freebsd7"
 500                 }
 501                 parseline()
 502                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 503                     !flag("NODEF")) {
 504                         printf("struct %s {\n", argalias) > out
 505                         for (i = 1; i <= argc; i++)
 506                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 507                                     "char %s_r_[PADR_(%s)];\n",
 508                                     argname[i], argtype[i],
 509                                     argtype[i], argname[i],
 510                                     argname[i], argtype[i]) > out
 511                         printf("};\n") > out
 512                 }
 513                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 514                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 515                             argalias) > sysarg
 516                 if (!flag("NOPROTO") && !flag("NODEF")) {
 517                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 518                             rettype, prefix, funcname, argalias) > outdcl
 519                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 520                             prefix, funcname, auditev) > sysaue
 521                 }
 522                 if (flag("NOSTD")) {
 523                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 524                             "0", "lkmressys", "AUE_NULL") > sysent
 525                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 526                             length("lkmressys") + length("AUE_NULL") + 3)
 527                 } else {
 528                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 529                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 530                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 531                             length(funcname) + length(auditev) + \
 532                             length(flags) + 4)
 533                 }
 534                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 535                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 536                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 537                 if (flag("COMPAT")) {
 538                         printf("\t\t\t\t/* %d is old %s */\n",
 539                             syscall, funcalias) > syshdr
 540                 } else if (!flag("NODEF")) {
 541                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 542                             prefix, funcalias, syscall) > syshdr
 543                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 544                 }
 545                 syscall++
 546                 next
 547         }
 548         type("OBSOL") {
 549                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 550                 align_sysent_comment(34)
 551                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 552                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 553                     $4, syscall, comment) > sysnames
 554                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 555                     syscall, comment) > syshdr
 556                 syscall++
 557                 next
 558         }
 559         type("UNIMPL") {
 560                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 561                     syscall, comment) > sysent
 562                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 563                     syscall, syscall, comment) > sysnames
 564                 syscall++
 565                 next
 566         }
 567         {
 568                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 569                 exit 1
 570         }
 571         END {
 572                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 573
 574                 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0)
 575                         printf "#include \"opt_compat.h\"\n\n" > syssw
 576
 577                 if (ncompat != 0) {
 578                         printf "\n#ifdef %s\n", compat > sysinc
 579                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 580                         printf "#else\n" > sysinc
 581                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 582                         printf "#endif\n" > sysinc
 583                 }
 584
 585                 if (ncompat4 != 0) {
 586                         printf "\n#ifdef %s\n", compat4 > sysinc
 587                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 588                         printf "#else\n" > sysinc
 589                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 590                         printf "#endif\n" > sysinc
 591                 }
 592
 593                 if (ncompat6 != 0) {
 594                         printf "\n#ifdef %s\n", compat6 > sysinc
 595                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 596                         printf "#else\n" > sysinc
 597                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 598                         printf "#endif\n" > sysinc
 599                 }
 600
 601                 if (ncompat7 != 0) {
 602                         printf "\n#ifdef %s\n", compat7 > sysinc
 603                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 604                         printf "#else\n" > sysinc
 605                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 606                         printf "#endif\n" > sysinc
 607                 }
 608
 609                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 610                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 611                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 612                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 613
 614                 printf("\n#undef PAD_\n") > sysprotoend
 615                 printf("#undef PADL_\n") > sysprotoend
 616                 printf("#undef PADR_\n") > sysprotoend
 617                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 618
 619                 printf("\n") > sysmk
 620                 printf("};\n") > sysent
 621                 printf("};\n") > sysnames
 622                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 623                     > syshdr
 624                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 625                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 626         } '
 627
 628 cat $sysinc $sysent >> $syssw
 629 cat $sysarg $sysdcl \
 630         $syscompat $syscompatdcl \
 631         $syscompat4 $syscompat4dcl \
 632         $syscompat6 $syscompat6dcl \
 633         $syscompat7 $syscompat7dcl \
 634         $sysaue $sysprotoend > $sysproto
 635 cat $systracetmp >> $systrace
 636