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         . $2
  65 fi
  66
  67 sed -e '
  68 s/\$//g
  69 :join
  70         /\\$/{a\
  71
  72         N
  73         s/\\\n//
  74         b join
  75         }
  76 2,${
  77         /^#/!s/\([{}()*,]\)/ \1 /g
  78 }
  79 ' < $1 | awk "
  80         BEGIN {
  81                 sysaue = \"$sysaue\"
  82                 sysdcl = \"$sysdcl\"
  83                 sysproto = \"$sysproto\"
  84                 sysprotoend = \"$sysprotoend\"
  85                 sysproto_h = \"$sysproto_h\"
  86                 syscompat = \"$syscompat\"
  87                 syscompatdcl = \"$syscompatdcl\"
  88                 syscompat4 = \"$syscompat4\"
  89                 syscompat4dcl = \"$syscompat4dcl\"
  90                 syscompat6 = \"$syscompat6\"
  91                 syscompat6dcl = \"$syscompat6dcl\"
  92                 syscompat7 = \"$syscompat7\"
  93                 syscompat7dcl = \"$syscompat7dcl\"
  94                 syscompat10 = \"$syscompat10\"
  95                 syscompat10dcl = \"$syscompat10dcl\"
  96                 sysent = \"$sysent\"
  97                 syssw = \"$syssw\"
  98                 sysinc = \"$sysinc\"
  99                 sysarg = \"$sysarg\"
 100                 sysnames = \"$sysnames\"
 101                 syshdr = \"$syshdr\"
 102                 sysmk = \"$sysmk\"
 103                 systrace = \"$systrace\"
 104                 systracetmp = \"$systracetmp\"
 105                 systraceret = \"$systraceret\"
 106                 compat = \"$compat\"
 107                 compat4 = \"$compat4\"
 108                 compat6 = \"$compat6\"
 109                 compat7 = \"$compat7\"
 110                 compat10 = \"$compat10\"
 111                 syscallprefix = \"$syscallprefix\"
 112                 switchname = \"$switchname\"
 113                 namesname = \"$namesname\"
 114                 infile = \"$1\"
 115                 capenabled_string = \"$capenabled\"
 116                 "'
 117
 118                 split(capenabled_string, capenabled, ",");
 119
 120                 printf "/*\n * System call switch table.\n *\n" > syssw
 121                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
 122                 printf " * $%s$\n", "FreeBSD" > syssw
 123
 124                 printf "/*\n * System call prototypes.\n *\n" > sysarg
 125                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
 126                 printf " * $%s$\n", "FreeBSD" > sysarg
 127
 128                 printf "\n#ifdef %s\n\n", compat > syscompat
 129                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
 130                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
 131                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
 132                 printf "\n#ifdef %s\n\n", compat10 > syscompat10
 133
 134                 printf "/*\n * System call names.\n *\n" > sysnames
 135                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
 136                 printf " * $%s$\n", "FreeBSD" > sysnames
 137
 138                 printf "/*\n * System call numbers.\n *\n" > syshdr
 139                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
 140                 printf " * $%s$\n", "FreeBSD" > syshdr
 141                 printf "# FreeBSD system call object files.\n" > sysmk
 142                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
 143                 printf "# $%s$\n", "FreeBSD" > sysmk
 144
 145                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
 146                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
 147                 printf " * $%s$\n", "FreeBSD" > systrace
 148         }
 149         NR == 1 {
 150                 gsub("[$]FreeBSD: ", "", $0)
 151                 gsub(" [$]", "", $0)
 152
 153                 printf " * created from%s\n */\n\n", $0 > syssw
 154
 155                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 156                 printf "struct sysent %s[] = {\n",switchname > sysent
 157
 158                 printf " * created from%s\n */\n\n", $0 > sysarg
 159                 printf "#ifndef %s\n", sysproto_h > sysarg
 160                 printf "#define\t%s\n\n", sysproto_h > sysarg
 161                 printf "#include <sys/signal.h>\n" > sysarg
 162                 printf "#include <sys/acl.h>\n" > sysarg
 163                 printf "#include <sys/cpuset.h>\n" > sysarg
 164                 printf "#include <sys/_ffcounter.h>\n" > sysarg
 165                 printf "#include <sys/_semaphore.h>\n" > sysarg
 166                 printf "#include <sys/ucontext.h>\n" > sysarg
 167                 printf "#include <sys/wait.h>\n\n" > sysarg
 168                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
 169                 printf "struct proc;\n\n" > sysarg
 170                 printf "struct thread;\n\n" > sysarg
 171                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 172                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 173                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 174                 printf "#define\tPADL_(t)\t0\n" > sysarg
 175                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 176                 printf "#else\n" > sysarg
 177                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 178                 printf "#define\tPADR_(t)\t0\n" > sysarg
 179                 printf "#endif\n\n" > sysarg
 180
 181                 printf " * created from%s\n */\n\n", $0 > sysnames
 182                 printf "const char *%s[] = {\n", namesname > sysnames
 183
 184                 printf " * created from%s\n */\n\n", $0 > syshdr
 185
 186                 printf "# created from%s\nMIASM = ", $0 > sysmk
 187
 188                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
 189                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
 190                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
 191                 printf "\tswitch (sysnum) {\n" > systrace
 192
 193                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
 194                 printf "\tswitch (sysnum) {\n" > systracetmp
 195
 196                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
 197                 printf "\tswitch (sysnum) {\n" > systraceret
 198
 199                 next
 200         }
 201         NF == 0 || $1 ~ /^;/ {
 202                 next
 203         }
 204         $1 ~ /^#[       ]*include/ {
 205                 print > sysinc
 206                 next
 207         }
 208         $1 ~ /^#[       ]*if/ {
 209                 print > sysent
 210                 print > sysdcl
 211                 print > sysarg
 212                 print > syscompat
 213                 print > syscompat4
 214                 print > syscompat6
 215                 print > syscompat7
 216                 print > syscompat10
 217                 print > sysnames
 218                 print > systrace
 219                 print > systracetmp
 220                 print > systraceret
 221                 savesyscall = syscall
 222                 next
 223         }
 224         $1 ~ /^#[       ]*else/ {
 225                 print > sysent
 226                 print > sysdcl
 227                 print > sysarg
 228                 print > syscompat
 229                 print > syscompat4
 230                 print > syscompat6
 231                 print > syscompat7
 232                 print > syscompat10
 233                 print > sysnames
 234                 print > systrace
 235                 print > systracetmp
 236                 print > systraceret
 237                 syscall = savesyscall
 238                 next
 239         }
 240         $1 ~ /^#/ {
 241                 print > sysent
 242                 print > sysdcl
 243                 print > sysarg
 244                 print > syscompat
 245                 print > syscompat4
 246                 print > syscompat6
 247                 print > syscompat7
 248                 print > syscompat10
 249                 print > sysnames
 250                 print > systrace
 251                 print > systracetmp
 252                 print > systraceret
 253                 next
 254         }
 255         syscall != $1 {
 256                 printf "%s: line %d: syscall number out of sync at %d\n",
 257                     infile, NR, syscall
 258                 printf "line is:\n"
 259                 print
 260                 exit 1
 261         }
 262         # Returns true if the type "name" is the first flag in the type field
 263         function type(name, flags, n) {
 264                 n = split($3, flags, /\|/)
 265                 return (n > 0 && flags[1] == name)
 266         }
 267         # Returns true if the flag "name" is set in the type field
 268         function flag(name, flags, i, n) {
 269                 n = split($3, flags, /\|/)
 270                 for (i = 1; i <= n; i++)
 271                         if (flags[i] == name)
 272                                 return 1
 273                 return 0
 274         }
 275         function align_sysent_comment(column) {
 276                 printf("\t") > sysent
 277                 column = column + 8 - column % 8
 278                 while (column < 56) {
 279                         printf("\t") > sysent
 280                         column = column + 8
 281                 }
 282         }
 283         function parserr(was, wanted) {
 284                 printf "%s: line %d: unexpected %s (expected %s)\n",
 285                     infile, NR, was, wanted
 286                 exit 1
 287         }
 288         function parseline() {
 289                 f=4                     # toss number, type, audit event
 290                 argc= 0;
 291                 argssize = "0"
 292                 thr_flag = "SY_THR_STATIC"
 293                 if (flag("NOTSTATIC")) {
 294                         thr_flag = "SY_THR_ABSENT"
 295                 }
 296                 if ($NF != "}") {
 297                         funcalias=$(NF-2)
 298                         argalias=$(NF-1)
 299                         rettype=$NF
 300                         end=NF-3
 301                 } else {
 302                         funcalias=""
 303                         argalias=""
 304                         rettype="int"
 305                         end=NF
 306                 }
 307                 if (flag("NODEF")) {
 308                         auditev="AUE_NULL"
 309                         funcname=$4
 310                         argssize = "AS(" $6 ")"
 311                         return
 312                 }
 313                 if ($f != "{")
 314                         parserr($f, "{")
 315                 f++
 316                 if ($end != "}")
 317                         parserr($end, "}")
 318                 end--
 319                 if ($end != ";")
 320                         parserr($end, ";")
 321                 end--
 322                 if ($end != ")")
 323                         parserr($end, ")")
 324                 end--
 325
 326                 syscallret=$f
 327                 f++
 328
 329                 funcname=$f
 330
 331                 #
 332                 # We now know the func name, so define a flags field for it.
 333                 # Do this before any other processing as we may return early
 334                 # from it.
 335                 #
 336                 for (cap in capenabled) {
 337                         if (funcname == capenabled[cap]) {
 338                                 flags = "SYF_CAPENABLED";
 339                                 break;
 340                         }
 341                 }
 342
 343                 if (funcalias == "")
 344                         funcalias = funcname
 345                 if (argalias == "") {
 346                         argalias = funcname "_args"
 347                         if (flag("COMPAT"))
 348                                 argalias = "o" argalias
 349                         if (flag("COMPAT4"))
 350                                 argalias = "freebsd4_" argalias
 351                         if (flag("COMPAT6"))
 352                                 argalias = "freebsd6_" argalias
 353                         if (flag("COMPAT7"))
 354                                 argalias = "freebsd7_" argalias
 355                         if (flag("COMPAT10"))
 356                                 argalias = "freebsd10_" argalias
 357                 }
 358                 f++
 359
 360                 if ($f != "(")
 361                         parserr($f, ")")
 362                 f++
 363
 364                 if (f == end) {
 365                         if ($f != "void")
 366                                 parserr($f, "argument definition")
 367                         return
 368                 }
 369
 370                 while (f <= end) {
 371                         argc++
 372                         argtype[argc]=""
 373                         oldf=""
 374                         while (f < end && $(f+1) != ",") {
 375                                 if (argtype[argc] != "" && oldf != "*")
 376                                         argtype[argc] = argtype[argc]" ";
 377                                 argtype[argc] = argtype[argc]$f;
 378                                 oldf = $f;
 379                                 f++
 380                         }
 381                         if (argtype[argc] == "")
 382                                 parserr($f, "argument definition")
 383                         argname[argc]=$f;
 384                         f += 2;                 # skip name, and any comma
 385                 }
 386                 if (argc != 0)
 387                         argssize = "AS(" argalias ")"
 388         }
 389         {       comment = $4
 390                 if (NF < 7)
 391                         for (i = 5; i <= NF; i++)
 392                                 comment = comment " " $i
 393         }
 394
 395         #
 396         # The AUE_ audit event identifier.
 397         #
 398         {
 399                 auditev = $2;
 400         }
 401
 402         #
 403         # The flags, if any.
 404         #
 405         {
 406                 flags = "0";
 407         }
 408
 409         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 410             || type("NOSTD") {
 411                 parseline()
 412                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 413                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 414                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
 415                 if (argc > 0) {
 416                         printf("\t\tswitch(ndx) {\n") > systracetmp
 417                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 418                         for (i = 1; i <= argc; i++) {
 419                                 arg = argtype[i]
 420                                 sub("__restrict$", "", arg)
 421                                 if (index(arg, "*") > 0)
 422                                         printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 423                                 else
 424                                         printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 425                                 if (index(arg, "*") > 0 || arg == "caddr_t")
 426                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 427                                              i - 1, \
 428                                              argname[i], arg) > systrace
 429                                 else if (arg == "union l_semun")
 430                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
 431                                              i - 1, \
 432                                              argname[i], arg) > systrace
 433                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
 434                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 435                                              i - 1, \
 436                                              argname[i], arg) > systrace
 437                                 else
 438                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 439                                              i - 1, \
 440                                              argname[i], arg) > systrace
 441                         }
 442                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 443
 444                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
 445                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
 446                         printf("\t\tbreak;\n") > systraceret
 447                 }
 448                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 449                 printf("\t\tbreak;\n") > systracetmp
 450                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 451                     !flag("NODEF")) {
 452                         printf("struct %s {\n", argalias) > sysarg
 453                         for (i = 1; i <= argc; i++)
 454                                 printf("\tchar %s_l_[PADL_(%s)]; " \
 455                                     "%s %s; char %s_r_[PADR_(%s)];\n",
 456                                     argname[i], argtype[i],
 457                                     argtype[i], argname[i],
 458                                     argname[i], argtype[i]) > sysarg
 459                         printf("};\n") > sysarg
 460                 }
 461                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 462                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 463                             argalias) > sysarg
 464                 if (!flag("NOPROTO") && !flag("NODEF")) {
 465                         if (funcname == "nosys" || funcname == "lkmnosys" ||
 466                             funcname == "sysarch" || funcname ~ /^freebsd/ ||
 467                             funcname ~ /^linux/ || funcname ~ /^svr4/ ||
 468                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/ ||
 469                             funcname ~ /^cloudabi/) {
 470                                 printf("%s\t%s(struct thread *, struct %s *)",
 471                                     rettype, funcname, argalias) > sysdcl
 472                         } else {
 473                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 474                                     rettype, funcname, argalias) > sysdcl
 475                         }
 476                         printf(";\n") > sysdcl
 477                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 478                             funcalias, auditev) > sysaue
 479                 }
 480                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 481                 column = 8 + 2 + length(argssize) + 15
 482                 if (flag("NOSTD")) {
 483                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
 484                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 485                 } else {
 486                         if (funcname == "nosys" || funcname == "sysarch" ||
 487                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 488                             funcname ~ /^linux/ || funcname ~ /^svr4/ ||
 489                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/ ||
 490                             funcname ~ /^cloudabi/) {
 491                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 492                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 493                         } else {
 494                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 495                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 496                         }
 497                 }
 498                 align_sysent_comment(column)
 499                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 500                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 501                     funcalias, syscall, funcalias) > sysnames
 502                 if (!flag("NODEF")) {
 503                         printf("#define\t%s%s\t%d\n", syscallprefix,
 504                             funcalias, syscall) > syshdr
 505                         printf(" \\\n\t%s.o", funcalias) > sysmk
 506                 }
 507                 syscall++
 508                 next
 509         }
 510         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 511             type("COMPAT7") || type("COMPAT10") {
 512                 if (flag("COMPAT")) {
 513                         ncompat++
 514                         out = syscompat
 515                         outdcl = syscompatdcl
 516                         wrap = "compat"
 517                         prefix = "o"
 518                         descr = "old"
 519                 } else if (flag("COMPAT4")) {
 520                         ncompat4++
 521                         out = syscompat4
 522                         outdcl = syscompat4dcl
 523                         wrap = "compat4"
 524                         prefix = "freebsd4_"
 525                         descr = "freebsd4"
 526                 } else if (flag("COMPAT6")) {
 527                         ncompat6++
 528                         out = syscompat6
 529                         outdcl = syscompat6dcl
 530                         wrap = "compat6"
 531                         prefix = "freebsd6_"
 532                         descr = "freebsd6"
 533                 } else if (flag("COMPAT7")) {
 534                         ncompat7++
 535                         out = syscompat7
 536                         outdcl = syscompat7dcl
 537                         wrap = "compat7"
 538                         prefix = "freebsd7_"
 539                         descr = "freebsd7"
 540                 } else if (flag("COMPAT10")) {
 541                         ncompat10++
 542                         out = syscompat10
 543                         outdcl = syscompat10dcl
 544                         wrap = "compat10"
 545                         prefix = "freebsd10_"
 546                         descr = "freebsd10"
 547                 }
 548                 parseline()
 549                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 550                     !flag("NODEF")) {
 551                         printf("struct %s {\n", argalias) > out
 552                         for (i = 1; i <= argc; i++)
 553                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 554                                     "char %s_r_[PADR_(%s)];\n",
 555                                     argname[i], argtype[i],
 556                                     argtype[i], argname[i],
 557                                     argname[i], argtype[i]) > out
 558                         printf("};\n") > out
 559                 }
 560                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 561                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 562                             argalias) > sysarg
 563                 if (!flag("NOPROTO") && !flag("NODEF")) {
 564                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 565                             rettype, prefix, funcname, argalias) > outdcl
 566                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 567                             prefix, funcname, auditev) > sysaue
 568                 }
 569                 if (flag("NOSTD")) {
 570                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 571                             "0", "lkmressys", "AUE_NULL") > sysent
 572                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 573                             length("lkmressys") + length("AUE_NULL") + 3)
 574                 } else {
 575                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 576                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 577                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 578                             length(funcname) + length(auditev) + \
 579                             length(flags) + 4)
 580                 }
 581                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 582                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 583                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 584                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
 585                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
 586                         printf("\t\t\t\t/* %d is %s %s */\n",
 587                             syscall, descr, funcalias) > syshdr
 588                 } else if (!flag("NODEF")) {
 589                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 590                             prefix, funcalias, syscall) > syshdr
 591                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 592                 }
 593                 syscall++
 594                 next
 595         }
 596         type("OBSOL") {
 597                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 598                 align_sysent_comment(34)
 599                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 600                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 601                     $4, syscall, comment) > sysnames
 602                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 603                     syscall, comment) > syshdr
 604                 syscall++
 605                 next
 606         }
 607         type("UNIMPL") {
 608                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 609                     syscall, comment) > sysent
 610                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 611                     syscall, syscall, comment) > sysnames
 612                 syscall++
 613                 next
 614         }
 615         {
 616                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 617                 exit 1
 618         }
 619         END {
 620                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 621
 622                 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0 || ncompat10 != 0)
 623                         printf "#include \"opt_compat.h\"\n\n" > syssw
 624
 625                 if (ncompat != 0) {
 626                         printf "\n#ifdef %s\n", compat > sysinc
 627                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 628                         printf "#else\n" > sysinc
 629                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 630                         printf "#endif\n" > sysinc
 631                 }
 632
 633                 if (ncompat4 != 0) {
 634                         printf "\n#ifdef %s\n", compat4 > sysinc
 635                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 636                         printf "#else\n" > sysinc
 637                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 638                         printf "#endif\n" > sysinc
 639                 }
 640
 641                 if (ncompat6 != 0) {
 642                         printf "\n#ifdef %s\n", compat6 > sysinc
 643                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 644                         printf "#else\n" > sysinc
 645                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 646                         printf "#endif\n" > sysinc
 647                 }
 648
 649                 if (ncompat7 != 0) {
 650                         printf "\n#ifdef %s\n", compat7 > sysinc
 651                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 652                         printf "#else\n" > sysinc
 653                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 654                         printf "#endif\n" > sysinc
 655                 }
 656                 if (ncompat10 != 0) {
 657                         printf "\n#ifdef %s\n", compat10 > sysinc
 658                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
 659                         printf "#else\n" > sysinc
 660                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 661                         printf "#endif\n" > sysinc
 662                 }
 663                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 664                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 665                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 666                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 667                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
 668
 669                 printf("\n#undef PAD_\n") > sysprotoend
 670                 printf("#undef PADL_\n") > sysprotoend
 671                 printf("#undef PADR_\n") > sysprotoend
 672                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 673
 674                 printf("\n") > sysmk
 675                 printf("};\n") > sysent
 676                 printf("};\n") > sysnames
 677                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 678                     > syshdr
 679                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 680                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 681                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
 682         } '
 683
 684 cat $sysinc $sysent >> $syssw
 685 cat $sysarg $sysdcl \
 686         $syscompat $syscompatdcl \
 687         $syscompat4 $syscompat4dcl \
 688         $syscompat6 $syscompat6dcl \
 689         $syscompat7 $syscompat7dcl \
 690         $syscompat10 $syscompat10dcl \
 691         $sysaue $sysprotoend > $sysproto
 692 cat $systracetmp >> $systrace
 693 cat $systraceret >> $systrace
 694