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 compat10=COMPAT_FREEBSD10
  13
  14 # output files:
  15 sysnames="syscalls.c"
  16 sysproto="../sys/sysproto.h"
  17 sysproto_h=_SYS_SYSPROTO_H_
  18 syshdr="../sys/syscall.h"
  19 sysmk="../sys/syscall.mk"
  20 syssw="init_sysent.c"
  21 syscallprefix="SYS_"
  22 switchname="sysent"
  23 namesname="syscallnames"
  24 systrace="systrace_args.c"
  25
  26 # tmp files:
  27 sysaue="sysent.aue.$$"
  28 sysdcl="sysent.dcl.$$"
  29 syscompat="sysent.compat.$$"
  30 syscompatdcl="sysent.compatdcl.$$"
  31 syscompat4="sysent.compat4.$$"
  32 syscompat4dcl="sysent.compat4dcl.$$"
  33 syscompat6="sysent.compat6.$$"
  34 syscompat6dcl="sysent.compat6dcl.$$"
  35 syscompat7="sysent.compat7.$$"
  36 syscompat7dcl="sysent.compat7dcl.$$"
  37 syscompat10="sysent.compat10.$$"
  38 syscompat10dcl="sysent.compat10dcl.$$"
  39 sysent="sysent.switch.$$"
  40 sysinc="sysinc.switch.$$"
  41 sysarg="sysarg.switch.$$"
  42 sysprotoend="sysprotoend.$$"
  43 systracetmp="systrace.$$"
  44 systraceret="systraceret.$$"
  45
  46 if [ -r capabilities.conf ]; then
  47         capenabled=`cat capabilities.conf | grep -v "^#" | grep -v "^$"`
  48         capenabled=`echo $capenabled | sed 's/ /,/g'`
  49 else
  50         capenabled=""
  51 fi
  52
  53 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
  54
  55 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
  56
  57 case $# in
  58     0)  echo "usage: $0 input-file <config-file>" 1>&2
  59         exit 1
  60         ;;
  61 esac
  62
  63 if [ -n "$2" ]; then
  64         . $2
  65 fi
  66
  67 sed -e '
  68 :join
  69         /\\$/{a\
  70
  71         N
  72         s/\\\n//
  73         b join
  74         }
  75 2,${
  76         /^#/!s/\([{}()*,]\)/ \1 /g
  77 }
  78 ' < $1 | awk "
  79         BEGIN {
  80                 sysaue = \"$sysaue\"
  81                 sysdcl = \"$sysdcl\"
  82                 sysproto = \"$sysproto\"
  83                 sysprotoend = \"$sysprotoend\"
  84                 sysproto_h = \"$sysproto_h\"
  85                 syscompat = \"$syscompat\"
  86                 syscompatdcl = \"$syscompatdcl\"
  87                 syscompat4 = \"$syscompat4\"
  88                 syscompat4dcl = \"$syscompat4dcl\"
  89                 syscompat6 = \"$syscompat6\"
  90                 syscompat6dcl = \"$syscompat6dcl\"
  91                 syscompat7 = \"$syscompat7\"
  92                 syscompat7dcl = \"$syscompat7dcl\"
  93                 syscompat10 = \"$syscompat10\"
  94                 syscompat10dcl = \"$syscompat10dcl\"
  95                 sysent = \"$sysent\"
  96                 syssw = \"$syssw\"
  97                 sysinc = \"$sysinc\"
  98                 sysarg = \"$sysarg\"
  99                 sysnames = \"$sysnames\"
 100                 syshdr = \"$syshdr\"
 101                 sysmk = \"$sysmk\"
 102                 systrace = \"$systrace\"
 103                 systracetmp = \"$systracetmp\"
 104                 systraceret = \"$systraceret\"
 105                 compat = \"$compat\"
 106                 compat4 = \"$compat4\"
 107                 compat6 = \"$compat6\"
 108                 compat7 = \"$compat7\"
 109                 compat10 = \"$compat10\"
 110                 syscallprefix = \"$syscallprefix\"
 111                 switchname = \"$switchname\"
 112                 namesname = \"$namesname\"
 113                 infile = \"$1\"
 114                 capenabled_string = \"$capenabled\"
 115                 "'
 116
 117                 split(capenabled_string, capenabled, ",");
 118
 119                 printf "/*\n * System call switch table.\n *\n" > syssw
 120                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
 121                 printf " * $%s$\n", "FreeBSD" > syssw
 122
 123                 printf "/*\n * System call prototypes.\n *\n" > sysarg
 124                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
 125                 printf " * $%s$\n", "FreeBSD" > sysarg
 126
 127                 printf "\n#ifdef %s\n\n", compat > syscompat
 128                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
 129                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
 130                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
 131                 printf "\n#ifdef %s\n\n", compat10 > syscompat10
 132
 133                 printf "/*\n * System call names.\n *\n" > sysnames
 134                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
 135                 printf " * $%s$\n", "FreeBSD" > sysnames
 136
 137                 printf "/*\n * System call numbers.\n *\n" > syshdr
 138                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
 139                 printf " * $%s$\n", "FreeBSD" > syshdr
 140                 printf "# FreeBSD system call object files.\n" > sysmk
 141                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
 142                 printf "# $%s$\n", "FreeBSD" > sysmk
 143
 144                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
 145                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
 146                 printf " * $%s$\n", "FreeBSD" > systrace
 147         }
 148         NR == 1 {
 149                 gsub("[$]FreeBSD: ", "FreeBSD: ", $0)
 150                 gsub(" [$]", "", $0)
 151
 152                 printf " * created from%s\n */\n\n", $0 > syssw
 153
 154                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 155                 printf "struct sysent %s[] = {\n",switchname > sysent
 156
 157                 printf " * created from%s\n */\n\n", $0 > sysarg
 158                 printf "#ifndef %s\n", sysproto_h > sysarg
 159                 printf "#define\t%s\n\n", sysproto_h > sysarg
 160                 printf "#include <sys/signal.h>\n" > sysarg
 161                 printf "#include <sys/acl.h>\n" > sysarg
 162                 printf "#include <sys/cpuset.h>\n" > sysarg
 163                 printf "#include <sys/_ffcounter.h>\n" > sysarg
 164                 printf "#include <sys/_semaphore.h>\n" > sysarg
 165                 printf "#include <sys/ucontext.h>\n" > sysarg
 166                 printf "#include <sys/wait.h>\n\n" > sysarg
 167                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
 168                 printf "struct proc;\n\n" > sysarg
 169                 printf "struct thread;\n\n" > sysarg
 170                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 171                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 172                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 173                 printf "#define\tPADL_(t)\t0\n" > sysarg
 174                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 175                 printf "#else\n" > sysarg
 176                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 177                 printf "#define\tPADR_(t)\t0\n" > sysarg
 178                 printf "#endif\n\n" > sysarg
 179
 180                 printf " * created from%s\n */\n\n", $0 > sysnames
 181                 printf "const char *%s[] = {\n", namesname > sysnames
 182
 183                 printf " * created from%s\n */\n\n", $0 > syshdr
 184
 185                 printf "# created from%s\nMIASM = ", $0 > sysmk
 186
 187                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
 188                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
 189                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
 190                 printf "\tswitch (sysnum) {\n" > systrace
 191
 192                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
 193                 printf "\tswitch (sysnum) {\n" > systracetmp
 194
 195                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
 196                 printf "\tswitch (sysnum) {\n" > systraceret
 197
 198                 next
 199         }
 200         NF == 0 || $1 ~ /^;/ {
 201                 next
 202         }
 203         $1 ~ /^#[       ]*include/ {
 204                 print > sysinc
 205                 next
 206         }
 207         $1 ~ /^#[       ]*if/ {
 208                 print > sysent
 209                 print > sysdcl
 210                 print > sysarg
 211                 print > syscompat
 212                 print > syscompat4
 213                 print > syscompat6
 214                 print > syscompat7
 215                 print > syscompat10
 216                 print > sysnames
 217                 print > systrace
 218                 print > systracetmp
 219                 print > systraceret
 220                 savesyscall = syscall
 221                 next
 222         }
 223         $1 ~ /^#[       ]*else/ {
 224                 print > sysent
 225                 print > sysdcl
 226                 print > sysarg
 227                 print > syscompat
 228                 print > syscompat4
 229                 print > syscompat6
 230                 print > syscompat7
 231                 print > syscompat10
 232                 print > sysnames
 233                 print > systrace
 234                 print > systracetmp
 235                 print > systraceret
 236                 syscall = savesyscall
 237                 next
 238         }
 239         $1 ~ /^#/ {
 240                 print > sysent
 241                 print > sysdcl
 242                 print > sysarg
 243                 print > syscompat
 244                 print > syscompat4
 245                 print > syscompat6
 246                 print > syscompat7
 247                 print > syscompat10
 248                 print > sysnames
 249                 print > systrace
 250                 print > systracetmp
 251                 print > systraceret
 252                 next
 253         }
 254         syscall != $1 {
 255                 printf "%s: line %d: syscall number out of sync at %d\n",
 256                     infile, NR, syscall
 257                 printf "line is:\n"
 258                 print
 259                 exit 1
 260         }
 261         # Returns true if the type "name" is the first flag in the type field
 262         function type(name, flags, n) {
 263                 n = split($3, flags, /\|/)
 264                 return (n > 0 && flags[1] == name)
 265         }
 266         # Returns true if the flag "name" is set in the type field
 267         function flag(name, flags, i, n) {
 268                 n = split($3, flags, /\|/)
 269                 for (i = 1; i <= n; i++)
 270                         if (flags[i] == name)
 271                                 return 1
 272                 return 0
 273         }
 274         function align_sysent_comment(column) {
 275                 printf("\t") > sysent
 276                 column = column + 8 - column % 8
 277                 while (column < 56) {
 278                         printf("\t") > sysent
 279                         column = column + 8
 280                 }
 281         }
 282         function parserr(was, wanted) {
 283                 printf "%s: line %d: unexpected %s (expected %s)\n",
 284                     infile, NR, was, wanted
 285                 exit 1
 286         }
 287         function parseline() {
 288                 f=4                     # toss number, type, audit event
 289                 argc= 0;
 290                 argssize = "0"
 291                 thr_flag = "SY_THR_STATIC"
 292                 if (flag("NOTSTATIC")) {
 293                         thr_flag = "SY_THR_ABSENT"
 294                 }
 295                 if ($NF != "}") {
 296                         funcalias=$(NF-2)
 297                         argalias=$(NF-1)
 298                         rettype=$NF
 299                         end=NF-3
 300                 } else {
 301                         funcalias=""
 302                         argalias=""
 303                         rettype="int"
 304                         end=NF
 305                 }
 306                 if (flag("NODEF")) {
 307                         auditev="AUE_NULL"
 308                         funcname=$4
 309                         argssize = "AS(" $6 ")"
 310                         return
 311                 }
 312                 if ($f != "{")
 313                         parserr($f, "{")
 314                 f++
 315                 if ($end != "}")
 316                         parserr($end, "}")
 317                 end--
 318                 if ($end != ";")
 319                         parserr($end, ";")
 320                 end--
 321                 if ($end != ")")
 322                         parserr($end, ")")
 323                 end--
 324
 325                 syscallret=$f
 326                 f++
 327
 328                 funcname=$f
 329
 330                 #
 331                 # We now know the func name, so define a flags field for it.
 332                 # Do this before any other processing as we may return early
 333                 # from it.
 334                 #
 335                 for (cap in capenabled) {
 336                         if (funcname == capenabled[cap]) {
 337                                 flags = "SYF_CAPENABLED";
 338                                 break;
 339                         }
 340                 }
 341
 342                 if (funcalias == "")
 343                         funcalias = funcname
 344                 if (argalias == "") {
 345                         argalias = funcname "_args"
 346                         if (flag("COMPAT"))
 347                                 argalias = "o" argalias
 348                         if (flag("COMPAT4"))
 349                                 argalias = "freebsd4_" argalias
 350                         if (flag("COMPAT6"))
 351                                 argalias = "freebsd6_" argalias
 352                         if (flag("COMPAT7"))
 353                                 argalias = "freebsd7_" argalias
 354                         if (flag("COMPAT10"))
 355                                 argalias = "freebsd10_" argalias
 356                 }
 357                 f++
 358
 359                 if ($f != "(")
 360                         parserr($f, ")")
 361                 f++
 362
 363                 if (f == end) {
 364                         if ($f != "void")
 365                                 parserr($f, "argument definition")
 366                         return
 367                 }
 368
 369                 while (f <= end) {
 370                         argc++
 371                         argtype[argc]=""
 372                         oldf=""
 373                         while (f < end && $(f+1) != ",") {
 374                                 if (argtype[argc] != "" && oldf != "*")
 375                                         argtype[argc] = argtype[argc]" ";
 376                                 argtype[argc] = argtype[argc]$f;
 377                                 oldf = $f;
 378                                 f++
 379                         }
 380                         if (argtype[argc] == "")
 381                                 parserr($f, "argument definition")
 382                         argname[argc]=$f;
 383                         f += 2;                 # skip name, and any comma
 384                 }
 385                 if (argc != 0)
 386                         argssize = "AS(" argalias ")"
 387         }
 388         {       comment = $4
 389                 if (NF < 7)
 390                         for (i = 5; i <= NF; i++)
 391                                 comment = comment " " $i
 392         }
 393
 394         #
 395         # The AUE_ audit event identifier.
 396         #
 397         {
 398                 auditev = $2;
 399         }
 400
 401         #
 402         # The flags, if any.
 403         #
 404         {
 405                 flags = "0";
 406         }
 407
 408         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 409             || type("NOSTD") {
 410                 parseline()
 411                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 412                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 413                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
 414                 if (argc > 0) {
 415                         printf("\t\tswitch(ndx) {\n") > systracetmp
 416                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 417                         for (i = 1; i <= argc; i++) {
 418                                 arg = argtype[i]
 419                                 sub("__restrict$", "", arg)
 420                                 if (index(arg, "*") > 0)
 421                                         printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 422                                 else
 423                                         printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 424                                 if (index(arg, "*") > 0 || arg == "caddr_t")
 425                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 426                                              i - 1, \
 427                                              argname[i], arg) > systrace
 428                                 else if (arg == "union l_semun")
 429                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
 430                                              i - 1, \
 431                                              argname[i], arg) > systrace
 432                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
 433                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 434                                              i - 1, \
 435                                              argname[i], arg) > systrace
 436                                 else
 437                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 438                                              i - 1, \
 439                                              argname[i], arg) > systrace
 440                         }
 441                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 442
 443                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
 444                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
 445                         printf("\t\tbreak;\n") > systraceret
 446                 }
 447                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 448                 printf("\t\tbreak;\n") > systracetmp
 449                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 450                     !flag("NODEF")) {
 451                         printf("struct %s {\n", argalias) > sysarg
 452                         for (i = 1; i <= argc; i++)
 453                                 printf("\tchar %s_l_[PADL_(%s)]; " \
 454                                     "%s %s; char %s_r_[PADR_(%s)];\n",
 455                                     argname[i], argtype[i],
 456                                     argtype[i], argname[i],
 457                                     argname[i], argtype[i]) > sysarg
 458                         printf("};\n") > sysarg
 459                 }
 460                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 461                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 462                             argalias) > sysarg
 463                 if (!flag("NOPROTO") && !flag("NODEF")) {
 464                         if (funcname == "nosys" || funcname == "lkmnosys" ||
 465                             funcname == "sysarch" || funcname ~ /^freebsd/ ||
 466                             funcname ~ /^linux/ || funcname ~ /^svr4/ ||
 467                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/ ||
 468                             funcname ~ /^cloudabi/) {
 469                                 printf("%s\t%s(struct thread *, struct %s *)",
 470                                     rettype, funcname, argalias) > sysdcl
 471                         } else {
 472                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 473                                     rettype, funcname, argalias) > sysdcl
 474                         }
 475                         printf(";\n") > sysdcl
 476                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 477                             funcalias, auditev) > sysaue
 478                 }
 479                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 480                 column = 8 + 2 + length(argssize) + 15
 481                 if (flag("NOSTD")) {
 482                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
 483                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 484                 } else {
 485                         if (funcname == "nosys" || funcname == "sysarch" ||
 486                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 487                             funcname ~ /^linux/ || funcname ~ /^svr4/ ||
 488                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/ ||
 489                             funcname ~ /^cloudabi/) {
 490                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 491                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 492                         } else {
 493                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 494                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 495                         }
 496                 }
 497                 align_sysent_comment(column)
 498                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 499                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 500                     funcalias, syscall, funcalias) > sysnames
 501                 if (!flag("NODEF")) {
 502                         printf("#define\t%s%s\t%d\n", syscallprefix,
 503                             funcalias, syscall) > syshdr
 504                         printf(" \\\n\t%s.o", funcalias) > sysmk
 505                 }
 506                 syscall++
 507                 next
 508         }
 509         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 510             type("COMPAT7") || type("COMPAT10") {
 511                 if (flag("COMPAT")) {
 512                         ncompat++
 513                         out = syscompat
 514                         outdcl = syscompatdcl
 515                         wrap = "compat"
 516                         prefix = "o"
 517                         descr = "old"
 518                 } else if (flag("COMPAT4")) {
 519                         ncompat4++
 520                         out = syscompat4
 521                         outdcl = syscompat4dcl
 522                         wrap = "compat4"
 523                         prefix = "freebsd4_"
 524                         descr = "freebsd4"
 525                 } else if (flag("COMPAT6")) {
 526                         ncompat6++
 527                         out = syscompat6
 528                         outdcl = syscompat6dcl
 529                         wrap = "compat6"
 530                         prefix = "freebsd6_"
 531                         descr = "freebsd6"
 532                 } else if (flag("COMPAT7")) {
 533                         ncompat7++
 534                         out = syscompat7
 535                         outdcl = syscompat7dcl
 536                         wrap = "compat7"
 537                         prefix = "freebsd7_"
 538                         descr = "freebsd7"
 539                 } else if (flag("COMPAT10")) {
 540                         ncompat10++
 541                         out = syscompat10
 542                         outdcl = syscompat10dcl
 543                         wrap = "compat10"
 544                         prefix = "freebsd10_"
 545                         descr = "freebsd10"
 546                 }
 547                 parseline()
 548                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 549                     !flag("NODEF")) {
 550                         printf("struct %s {\n", argalias) > out
 551                         for (i = 1; i <= argc; i++)
 552                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 553                                     "char %s_r_[PADR_(%s)];\n",
 554                                     argname[i], argtype[i],
 555                                     argtype[i], argname[i],
 556                                     argname[i], argtype[i]) > out
 557                         printf("};\n") > out
 558                 }
 559                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 560                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 561                             argalias) > sysarg
 562                 if (!flag("NOPROTO") && !flag("NODEF")) {
 563                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 564                             rettype, prefix, funcname, argalias) > outdcl
 565                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 566                             prefix, funcname, auditev) > sysaue
 567                 }
 568                 if (flag("NOSTD")) {
 569                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 570                             "0", "lkmressys", "AUE_NULL") > sysent
 571                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 572                             length("lkmressys") + length("AUE_NULL") + 3)
 573                 } else {
 574                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 575                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 576                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 577                             length(funcname) + length(auditev) + \
 578                             length(flags) + 4)
 579                 }
 580                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 581                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 582                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 583                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
 584                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
 585                         printf("\t\t\t\t/* %d is %s %s */\n",
 586                             syscall, descr, funcalias) > syshdr
 587                 } else if (!flag("NODEF")) {
 588                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 589                             prefix, funcalias, syscall) > syshdr
 590                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 591                 }
 592                 syscall++
 593                 next
 594         }
 595         type("OBSOL") {
 596                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 597                 align_sysent_comment(34)
 598                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 599                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 600                     $4, syscall, comment) > sysnames
 601                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 602                     syscall, comment) > syshdr
 603                 syscall++
 604                 next
 605         }
 606         type("UNIMPL") {
 607                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 608                     syscall, comment) > sysent
 609                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 610                     syscall, syscall, comment) > sysnames
 611                 syscall++
 612                 next
 613         }
 614         {
 615                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 616                 exit 1
 617         }
 618         END {
 619                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 620
 621                 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0 || ncompat10 != 0)
 622                         printf "#include \"opt_compat.h\"\n\n" > syssw
 623
 624                 if (ncompat != 0) {
 625                         printf "\n#ifdef %s\n", compat > sysinc
 626                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 627                         printf "#else\n" > sysinc
 628                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 629                         printf "#endif\n" > sysinc
 630                 }
 631
 632                 if (ncompat4 != 0) {
 633                         printf "\n#ifdef %s\n", compat4 > sysinc
 634                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 635                         printf "#else\n" > sysinc
 636                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 637                         printf "#endif\n" > sysinc
 638                 }
 639
 640                 if (ncompat6 != 0) {
 641                         printf "\n#ifdef %s\n", compat6 > sysinc
 642                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 643                         printf "#else\n" > sysinc
 644                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 645                         printf "#endif\n" > sysinc
 646                 }
 647
 648                 if (ncompat7 != 0) {
 649                         printf "\n#ifdef %s\n", compat7 > sysinc
 650                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 651                         printf "#else\n" > sysinc
 652                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 653                         printf "#endif\n" > sysinc
 654                 }
 655                 if (ncompat10 != 0) {
 656                         printf "\n#ifdef %s\n", compat10 > sysinc
 657                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
 658                         printf "#else\n" > sysinc
 659                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 660                         printf "#endif\n" > sysinc
 661                 }
 662                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 663                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 664                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 665                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 666                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
 667
 668                 printf("\n#undef PAD_\n") > sysprotoend
 669                 printf("#undef PADL_\n") > sysprotoend
 670                 printf("#undef PADR_\n") > sysprotoend
 671                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 672
 673                 printf("\n") > sysmk
 674                 printf("};\n") > sysent
 675                 printf("};\n") > sysnames
 676                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 677                     > syshdr
 678                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 679                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 680                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
 681         } '
 682
 683 cat $sysinc $sysent >> $syssw
 684 cat $sysarg $sysdcl \
 685         $syscompat $syscompatdcl \
 686         $syscompat4 $syscompat4dcl \
 687         $syscompat6 $syscompat6dcl \
 688         $syscompat7 $syscompat7dcl \
 689         $syscompat10 $syscompat10dcl \
 690         $sysaue $sysprotoend > $sysproto
 691 cat $systracetmp >> $systrace
 692 cat $systraceret >> $systrace
 693