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/* The casts are bogus but will do for now. */\n" > sysent
 120                 printf "struct sysent %s[] = {\n",switchname > sysent
 121
 122                 printf "/*\n * System call switch table.\n *\n" > syssw
 123                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
 124                 printf " * $%s$\n", "FreeBSD" > syssw
 125                 printf " */\n\n" > syssw
 126
 127                 printf "/*\n * System call prototypes.\n *\n" > sysarg
 128                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
 129                 printf " * $%s$\n", "FreeBSD" > sysarg
 130                 printf " */\n\n" > sysarg
 131                 printf "#ifndef %s\n", sysproto_h > sysarg
 132                 printf "#define\t%s\n\n", sysproto_h > sysarg
 133                 printf "#include <sys/signal.h>\n" > sysarg
 134                 printf "#include <sys/acl.h>\n" > sysarg
 135                 printf "#include <sys/cpuset.h>\n" > sysarg
 136                 printf "#include <sys/_ffcounter.h>\n" > sysarg
 137                 printf "#include <sys/_semaphore.h>\n" > sysarg
 138                 printf "#include <sys/ucontext.h>\n" > sysarg
 139                 printf "#include <sys/wait.h>\n\n" > sysarg
 140                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
 141                 printf "struct proc;\n\n" > sysarg
 142                 printf "struct thread;\n\n" > sysarg
 143                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 144                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 145                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 146                 printf "#define\tPADL_(t)\t0\n" > sysarg
 147                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 148                 printf "#else\n" > sysarg
 149                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 150                 printf "#define\tPADR_(t)\t0\n" > sysarg
 151                 printf "#endif\n\n" > sysarg
 152
 153                 printf "\n#ifdef %s\n\n", compat > syscompat
 154                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
 155                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
 156                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
 157                 printf "\n#ifdef %s\n\n", compat10 > syscompat10
 158
 159                 printf "/*\n * System call names.\n *\n" > sysnames
 160                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
 161                 printf " * $%s$\n", "FreeBSD" > sysnames
 162                 printf " */\n\n" > sysnames
 163                 printf "const char *%s[] = {\n", namesname > sysnames
 164
 165                 printf "/*\n * System call numbers.\n *\n" > syshdr
 166                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
 167                 printf " * $%s$\n", "FreeBSD" > syshdr
 168                 printf " */\n\n" > syshdr
 169
 170                 printf "# FreeBSD system call object files.\n" > sysmk
 171                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
 172                 printf "# $%s$\n", "FreeBSD" > sysmk
 173                 printf "MIASM = " > sysmk
 174
 175                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
 176                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
 177                 printf " * $%s$\n", "FreeBSD" > systrace
 178                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
 179                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
 180                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
 181                 printf "\tswitch (sysnum) {\n" > systrace
 182
 183                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
 184                 printf "\tswitch (sysnum) {\n" > systracetmp
 185
 186                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
 187                 printf "\tswitch (sysnum) {\n" > systraceret
 188         }
 189         NR == 1 {
 190                 next
 191         }
 192         NF == 0 || $1 ~ /^;/ {
 193                 next
 194         }
 195         $1 ~ /^#[       ]*include/ {
 196                 print > sysinc
 197                 next
 198         }
 199         $1 ~ /^#[       ]*if/ {
 200                 print > sysent
 201                 print > sysdcl
 202                 print > sysarg
 203                 print > syscompat
 204                 print > syscompat4
 205                 print > syscompat6
 206                 print > syscompat7
 207                 print > syscompat10
 208                 print > sysnames
 209                 print > systrace
 210                 print > systracetmp
 211                 print > systraceret
 212                 savesyscall = syscall
 213                 next
 214         }
 215         $1 ~ /^#[       ]*else/ {
 216                 print > sysent
 217                 print > sysdcl
 218                 print > sysarg
 219                 print > syscompat
 220                 print > syscompat4
 221                 print > syscompat6
 222                 print > syscompat7
 223                 print > syscompat10
 224                 print > sysnames
 225                 print > systrace
 226                 print > systracetmp
 227                 print > systraceret
 228                 syscall = savesyscall
 229                 next
 230         }
 231         $1 ~ /^#/ {
 232                 print > sysent
 233                 print > sysdcl
 234                 print > sysarg
 235                 print > syscompat
 236                 print > syscompat4
 237                 print > syscompat6
 238                 print > syscompat7
 239                 print > syscompat10
 240                 print > sysnames
 241                 print > systrace
 242                 print > systracetmp
 243                 print > systraceret
 244                 next
 245         }
 246         # Returns true if the type "name" is the first flag in the type field
 247         function type(name, flags, n) {
 248                 n = split($3, flags, /\|/)
 249                 return (n > 0 && flags[1] == name)
 250         }
 251         # Returns true if the flag "name" is set in the type field
 252         function flag(name, flags, i, n) {
 253                 n = split($3, flags, /\|/)
 254                 for (i = 1; i <= n; i++)
 255                         if (flags[i] == name)
 256                                 return 1
 257                 return 0
 258         }
 259         {
 260                 n = split($1, syscall_range, /-/)
 261                 if (n == 1) {
 262                         syscall_range[2] = syscall_range[1]
 263                 } else if (n == 2) {
 264                         if (!type("UNIMPL")) {
 265                                 printf "%s: line %d: range permitted only with UNIMPL\n",
 266                                     infile, NR
 267                                 exit 1
 268                         }
 269                 } else {
 270                         printf "%s: line %d: invalid syscall number or range %s\n",
 271                             infile, NR, $1
 272                         exit 1
 273                 }
 274         }
 275         syscall != syscall_range[1] {
 276                 printf "%s: line %d: syscall number out of sync at %d\n",
 277                     infile, NR, syscall
 278                 printf "line is:\n"
 279                 print
 280                 exit 1
 281         }
 282         function align_sysent_comment(column) {
 283                 printf("\t") > sysent
 284                 column = column + 8 - column % 8
 285                 while (column < 56) {
 286                         printf("\t") > sysent
 287                         column = column + 8
 288                 }
 289         }
 290         function parserr(was, wanted) {
 291                 printf "%s: line %d: unexpected %s (expected %s)\n",
 292                     infile, NR, was, wanted
 293                 exit 1
 294         }
 295         function parseline() {
 296                 f=4                     # toss number, type, audit event
 297                 argc= 0;
 298                 argssize = "0"
 299                 thr_flag = "SY_THR_STATIC"
 300                 if (flag("NOTSTATIC")) {
 301                         thr_flag = "SY_THR_ABSENT"
 302                 }
 303                 if ($NF != "}") {
 304                         funcalias=$(NF-2)
 305                         argalias=$(NF-1)
 306                         rettype=$NF
 307                         end=NF-3
 308                 } else {
 309                         funcalias=""
 310                         argalias=""
 311                         rettype="int"
 312                         end=NF
 313                 }
 314                 if (flag("NODEF")) {
 315                         auditev="AUE_NULL"
 316                         funcname=$4
 317                         argssize = "AS(" $6 ")"
 318                         return
 319                 }
 320                 if ($f != "{")
 321                         parserr($f, "{")
 322                 f++
 323                 if ($end != "}")
 324                         parserr($end, "}")
 325                 end--
 326                 if ($end != ";")
 327                         parserr($end, ";")
 328                 end--
 329                 if ($end != ")")
 330                         parserr($end, ")")
 331                 end--
 332
 333                 syscallret=$f
 334                 f++
 335
 336                 funcname=$f
 337
 338                 #
 339                 # We now know the func name, so define a flags field for it.
 340                 # Do this before any other processing as we may return early
 341                 # from it.
 342                 #
 343                 for (cap in capenabled) {
 344                         if (funcname == capenabled[cap]) {
 345                                 flags = "SYF_CAPENABLED";
 346                                 break;
 347                         }
 348                 }
 349
 350                 if (funcalias == "")
 351                         funcalias = funcname
 352                 if (argalias == "") {
 353                         argalias = funcname "_args"
 354                         if (flag("COMPAT"))
 355                                 argalias = "o" argalias
 356                         if (flag("COMPAT4"))
 357                                 argalias = "freebsd4_" argalias
 358                         if (flag("COMPAT6"))
 359                                 argalias = "freebsd6_" argalias
 360                         if (flag("COMPAT7"))
 361                                 argalias = "freebsd7_" argalias
 362                         if (flag("COMPAT10"))
 363                                 argalias = "freebsd10_" argalias
 364                 }
 365                 f++
 366
 367                 if ($f != "(")
 368                         parserr($f, ")")
 369                 f++
 370
 371                 if (f == end) {
 372                         if ($f != "void")
 373                                 parserr($f, "argument definition")
 374                         return
 375                 }
 376
 377                 while (f <= end) {
 378                         argc++
 379                         argtype[argc]=""
 380                         oldf=""
 381                         while (f < end && $(f+1) != ",") {
 382                                 if (argtype[argc] != "" && oldf != "*")
 383                                         argtype[argc] = argtype[argc]" ";
 384                                 argtype[argc] = argtype[argc]$f;
 385                                 oldf = $f;
 386                                 f++
 387                         }
 388                         if (argtype[argc] == "")
 389                                 parserr($f, "argument definition")
 390                         argname[argc]=$f;
 391                         f += 2;                 # skip name, and any comma
 392                 }
 393                 if (argc != 0)
 394                         argssize = "AS(" argalias ")"
 395         }
 396         {       comment = $4
 397                 if (NF < 7)
 398                         for (i = 5; i <= NF; i++)
 399                                 comment = comment " " $i
 400         }
 401
 402         #
 403         # The AUE_ audit event identifier.
 404         #
 405         {
 406                 auditev = $2;
 407         }
 408
 409         #
 410         # The flags, if any.
 411         #
 412         {
 413                 flags = "0";
 414         }
 415
 416         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 417             || type("NOSTD") {
 418                 parseline()
 419                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 420                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 421                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
 422                 if (argc > 0) {
 423                         printf("\t\tswitch(ndx) {\n") > systracetmp
 424                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 425                         for (i = 1; i <= argc; i++) {
 426                                 arg = argtype[i]
 427                                 sub("__restrict$", "", arg)
 428                                 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 429                                 if (index(arg, "*") > 0 || arg == "caddr_t")
 430                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 431                                              i - 1, \
 432                                              argname[i], arg) > systrace
 433                                 else if (arg == "union l_semun")
 434                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
 435                                              i - 1, \
 436                                              argname[i], arg) > systrace
 437                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
 438                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 439                                              i - 1, \
 440                                              argname[i], arg) > systrace
 441                                 else
 442                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 443                                              i - 1, \
 444                                              argname[i], arg) > systrace
 445                         }
 446                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 447
 448                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
 449                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
 450                         printf("\t\tbreak;\n") > systraceret
 451                 }
 452                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 453                 printf("\t\tbreak;\n") > systracetmp
 454                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 455                     !flag("NODEF")) {
 456                         printf("struct %s {\n", argalias) > sysarg
 457                         for (i = 1; i <= argc; i++)
 458                                 printf("\tchar %s_l_[PADL_(%s)]; " \
 459                                     "%s %s; char %s_r_[PADR_(%s)];\n",
 460                                     argname[i], argtype[i],
 461                                     argtype[i], argname[i],
 462                                     argname[i], argtype[i]) > sysarg
 463                         printf("};\n") > sysarg
 464                 }
 465                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 466                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 467                             argalias) > sysarg
 468                 if (!flag("NOPROTO") && !flag("NODEF")) {
 469                         if (funcname == "nosys" || funcname == "lkmnosys" ||
 470                             funcname == "sysarch" || funcname ~ /^freebsd/ ||
 471                             funcname ~ /^linux/ || funcname ~ /^svr4/ ||
 472                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/ ||
 473                             funcname ~ /^cloudabi/) {
 474                                 printf("%s\t%s(struct thread *, struct %s *)",
 475                                     rettype, funcname, argalias) > sysdcl
 476                         } else {
 477                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 478                                     rettype, funcname, argalias) > sysdcl
 479                         }
 480                         printf(";\n") > sysdcl
 481                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 482                             funcalias, auditev) > sysaue
 483                 }
 484                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 485                 column = 8 + 2 + length(argssize) + 15
 486                 if (flag("NOSTD")) {
 487                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
 488                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 489                 } else {
 490                         if (funcname == "nosys" || funcname == "sysarch" ||
 491                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 492                             funcname ~ /^linux/ || funcname ~ /^svr4/ ||
 493                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/ ||
 494                             funcname ~ /^cloudabi/) {
 495                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 496                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 497                         } else {
 498                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 499                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 500                         }
 501                 }
 502                 align_sysent_comment(column)
 503                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 504                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 505                     funcalias, syscall, funcalias) > sysnames
 506                 if (!flag("NODEF")) {
 507                         printf("#define\t%s%s\t%d\n", syscallprefix,
 508                             funcalias, syscall) > syshdr
 509                         printf(" \\\n\t%s.o", funcalias) > sysmk
 510                 }
 511                 syscall++
 512                 next
 513         }
 514         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 515             type("COMPAT7") || type("COMPAT10") {
 516                 if (flag("COMPAT")) {
 517                         ncompat++
 518                         out = syscompat
 519                         outdcl = syscompatdcl
 520                         wrap = "compat"
 521                         prefix = "o"
 522                         descr = "old"
 523                 } else if (flag("COMPAT4")) {
 524                         ncompat4++
 525                         out = syscompat4
 526                         outdcl = syscompat4dcl
 527                         wrap = "compat4"
 528                         prefix = "freebsd4_"
 529                         descr = "freebsd4"
 530                 } else if (flag("COMPAT6")) {
 531                         ncompat6++
 532                         out = syscompat6
 533                         outdcl = syscompat6dcl
 534                         wrap = "compat6"
 535                         prefix = "freebsd6_"
 536                         descr = "freebsd6"
 537                 } else if (flag("COMPAT7")) {
 538                         ncompat7++
 539                         out = syscompat7
 540                         outdcl = syscompat7dcl
 541                         wrap = "compat7"
 542                         prefix = "freebsd7_"
 543                         descr = "freebsd7"
 544                 } else if (flag("COMPAT10")) {
 545                         ncompat10++
 546                         out = syscompat10
 547                         outdcl = syscompat10dcl
 548                         wrap = "compat10"
 549                         prefix = "freebsd10_"
 550                         descr = "freebsd10"
 551                 }
 552                 parseline()
 553                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 554                     !flag("NODEF")) {
 555                         printf("struct %s {\n", argalias) > out
 556                         for (i = 1; i <= argc; i++)
 557                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 558                                     "char %s_r_[PADR_(%s)];\n",
 559                                     argname[i], argtype[i],
 560                                     argtype[i], argname[i],
 561                                     argname[i], argtype[i]) > out
 562                         printf("};\n") > out
 563                 }
 564                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 565                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 566                             argalias) > sysarg
 567                 if (!flag("NOPROTO") && !flag("NODEF")) {
 568                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 569                             rettype, prefix, funcname, argalias) > outdcl
 570                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 571                             prefix, funcname, auditev) > sysaue
 572                 }
 573                 if (flag("NOSTD")) {
 574                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 575                             "0", "lkmressys", "AUE_NULL") > sysent
 576                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 577                             length("lkmressys") + length("AUE_NULL") + 3)
 578                 } else {
 579                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 580                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 581                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 582                             length(funcname) + length(auditev) + \
 583                             length(flags) + 4)
 584                 }
 585                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 586                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 587                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 588                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
 589                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
 590                         printf("\t\t\t\t/* %d is %s %s */\n",
 591                             syscall, descr, funcalias) > syshdr
 592                 } else if (!flag("NODEF")) {
 593                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 594                             prefix, funcalias, syscall) > syshdr
 595                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 596                 }
 597                 syscall++
 598                 next
 599         }
 600         type("OBSOL") {
 601                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 602                 align_sysent_comment(34)
 603                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 604                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 605                     $4, syscall, comment) > sysnames
 606                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 607                     syscall, comment) > syshdr
 608                 syscall++
 609                 next
 610         }
 611         type("UNIMPL") {
 612                 while (syscall <= syscall_range[2]) {
 613                         printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 614                             syscall, comment) > sysent
 615                         printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 616                             syscall, syscall, comment) > sysnames
 617                         syscall++
 618                 }
 619                 next
 620         }
 621         {
 622                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 623                 exit 1
 624         }
 625         END {
 626                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 627
 628                 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0 || ncompat10 != 0)
 629                         printf "#include \"opt_compat.h\"\n\n" > syssw
 630
 631                 if (ncompat != 0) {
 632                         printf "\n#ifdef %s\n", compat > sysinc
 633                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 634                         printf "#else\n" > sysinc
 635                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 636                         printf "#endif\n" > sysinc
 637                 }
 638
 639                 if (ncompat4 != 0) {
 640                         printf "\n#ifdef %s\n", compat4 > sysinc
 641                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 642                         printf "#else\n" > sysinc
 643                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 644                         printf "#endif\n" > sysinc
 645                 }
 646
 647                 if (ncompat6 != 0) {
 648                         printf "\n#ifdef %s\n", compat6 > sysinc
 649                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 650                         printf "#else\n" > sysinc
 651                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 652                         printf "#endif\n" > sysinc
 653                 }
 654
 655                 if (ncompat7 != 0) {
 656                         printf "\n#ifdef %s\n", compat7 > sysinc
 657                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 658                         printf "#else\n" > sysinc
 659                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 660                         printf "#endif\n" > sysinc
 661                 }
 662                 if (ncompat10 != 0) {
 663                         printf "\n#ifdef %s\n", compat10 > sysinc
 664                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
 665                         printf "#else\n" > sysinc
 666                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 667                         printf "#endif\n" > sysinc
 668                 }
 669                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 670                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 671                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 672                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 673                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
 674
 675                 printf("\n#undef PAD_\n") > sysprotoend
 676                 printf("#undef PADL_\n") > sysprotoend
 677                 printf("#undef PADR_\n") > sysprotoend
 678                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 679
 680                 printf("\n") > sysmk
 681                 printf("};\n") > sysent
 682                 printf("};\n") > sysnames
 683                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 684                     > syshdr
 685                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 686                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 687                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
 688         } '
 689
 690 cat $sysinc $sysent >> $syssw
 691 cat $sysarg $sysdcl \
 692         $syscompat $syscompatdcl \
 693         $syscompat4 $syscompat4dcl \
 694         $syscompat6 $syscompat6dcl \
 695         $syscompat7 $syscompat7dcl \
 696         $syscompat10 $syscompat10dcl \
 697         $sysaue $sysprotoend > $sysproto
 698 cat $systracetmp >> $systrace
 699 cat $systraceret >> $systrace
 700