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 compat11=COMPAT_FREEBSD11
  14
  15 # output files:
  16 sysnames="syscalls.c"
  17 sysproto="../sys/sysproto.h"
  18 sysproto_h=_SYS_SYSPROTO_H_
  19 syshdr="../sys/syscall.h"
  20 sysmk="../sys/syscall.mk"
  21 syssw="init_sysent.c"
  22 syscallprefix="SYS_"
  23 switchname="sysent"
  24 namesname="syscallnames"
  25 systrace="systrace_args.c"
  26
  27 # tmp files:
  28 sysaue="sysent.aue.$$"
  29 sysdcl="sysent.dcl.$$"
  30 syscompat="sysent.compat.$$"
  31 syscompatdcl="sysent.compatdcl.$$"
  32 syscompat4="sysent.compat4.$$"
  33 syscompat4dcl="sysent.compat4dcl.$$"
  34 syscompat6="sysent.compat6.$$"
  35 syscompat6dcl="sysent.compat6dcl.$$"
  36 syscompat7="sysent.compat7.$$"
  37 syscompat7dcl="sysent.compat7dcl.$$"
  38 syscompat10="sysent.compat10.$$"
  39 syscompat10dcl="sysent.compat10dcl.$$"
  40 syscompat11="sysent.compat11.$$"
  41 syscompat11dcl="sysent.compat11dcl.$$"
  42 sysent="sysent.switch.$$"
  43 sysinc="sysinc.switch.$$"
  44 sysarg="sysarg.switch.$$"
  45 sysprotoend="sysprotoend.$$"
  46 systracetmp="systrace.$$"
  47 systraceret="systraceret.$$"
  48
  49 if [ -r capabilities.conf ]; then
  50         capenabled=`cat capabilities.conf | grep -v "^#" | grep -v "^$"`
  51         capenabled=`echo $capenabled | sed 's/ /,/g'`
  52 else
  53         capenabled=""
  54 fi
  55
  56 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
  57
  58 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
  59
  60 case $# in
  61     0)  echo "usage: $0 input-file <config-file>" 1>&2
  62         exit 1
  63         ;;
  64 esac
  65
  66 if [ -n "$2" ]; then
  67         . $2
  68 fi
  69
  70 sed -e '
  71 :join
  72         /\\$/{a\
  73
  74         N
  75         s/\\\n//
  76         b join
  77         }
  78 2,${
  79         /^#/!s/\([{}()*,]\)/ \1 /g
  80 }
  81 ' < $1 | awk "
  82         BEGIN {
  83                 sysaue = \"$sysaue\"
  84                 sysdcl = \"$sysdcl\"
  85                 sysproto = \"$sysproto\"
  86                 sysprotoend = \"$sysprotoend\"
  87                 sysproto_h = \"$sysproto_h\"
  88                 syscompat = \"$syscompat\"
  89                 syscompatdcl = \"$syscompatdcl\"
  90                 syscompat4 = \"$syscompat4\"
  91                 syscompat4dcl = \"$syscompat4dcl\"
  92                 syscompat6 = \"$syscompat6\"
  93                 syscompat6dcl = \"$syscompat6dcl\"
  94                 syscompat7 = \"$syscompat7\"
  95                 syscompat7dcl = \"$syscompat7dcl\"
  96                 syscompat10 = \"$syscompat10\"
  97                 syscompat10dcl = \"$syscompat10dcl\"
  98                 syscompat11 = \"$syscompat11\"
  99                 syscompat11dcl = \"$syscompat11dcl\"
 100                 sysent = \"$sysent\"
 101                 syssw = \"$syssw\"
 102                 sysinc = \"$sysinc\"
 103                 sysarg = \"$sysarg\"
 104                 sysnames = \"$sysnames\"
 105                 syshdr = \"$syshdr\"
 106                 sysmk = \"$sysmk\"
 107                 systrace = \"$systrace\"
 108                 systracetmp = \"$systracetmp\"
 109                 systraceret = \"$systraceret\"
 110                 compat = \"$compat\"
 111                 compat4 = \"$compat4\"
 112                 compat6 = \"$compat6\"
 113                 compat7 = \"$compat7\"
 114                 compat10 = \"$compat10\"
 115                 compat11 = \"$compat11\"
 116                 syscallprefix = \"$syscallprefix\"
 117                 switchname = \"$switchname\"
 118                 namesname = \"$namesname\"
 119                 infile = \"$1\"
 120                 capenabled_string = \"$capenabled\"
 121                 "'
 122
 123                 split(capenabled_string, capenabled, ",");
 124
 125                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 126                 printf "struct sysent %s[] = {\n",switchname > sysent
 127
 128                 printf "/*\n * System call switch table.\n *\n" > syssw
 129                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
 130                 printf " * $%s$\n", "FreeBSD" > syssw
 131                 printf " */\n\n" > syssw
 132
 133                 printf "/*\n * System call prototypes.\n *\n" > sysarg
 134                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
 135                 printf " * $%s$\n", "FreeBSD" > sysarg
 136                 printf " */\n\n" > sysarg
 137                 printf "#ifndef %s\n", sysproto_h > sysarg
 138                 printf "#define\t%s\n\n", sysproto_h > sysarg
 139                 printf "#include <sys/signal.h>\n" > sysarg
 140                 printf "#include <sys/acl.h>\n" > sysarg
 141                 printf "#include <sys/cpuset.h>\n" > sysarg
 142                 printf "#include <sys/_ffcounter.h>\n" > sysarg
 143                 printf "#include <sys/_semaphore.h>\n" > sysarg
 144                 printf "#include <sys/ucontext.h>\n" > sysarg
 145                 printf "#include <sys/wait.h>\n\n" > sysarg
 146                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
 147                 printf "struct proc;\n\n" > sysarg
 148                 printf "struct thread;\n\n" > sysarg
 149                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 150                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 151                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 152                 printf "#define\tPADL_(t)\t0\n" > sysarg
 153                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 154                 printf "#else\n" > sysarg
 155                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 156                 printf "#define\tPADR_(t)\t0\n" > sysarg
 157                 printf "#endif\n\n" > sysarg
 158
 159                 printf "\n#ifdef %s\n\n", compat > syscompat
 160                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
 161                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
 162                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
 163                 printf "\n#ifdef %s\n\n", compat10 > syscompat10
 164                 printf "\n#ifdef %s\n\n", compat11 > syscompat11
 165
 166                 printf "/*\n * System call names.\n *\n" > sysnames
 167                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
 168                 printf " * $%s$\n", "FreeBSD" > sysnames
 169                 printf " */\n\n" > sysnames
 170                 printf "const char *%s[] = {\n", namesname > sysnames
 171
 172                 printf "/*\n * System call numbers.\n *\n" > syshdr
 173                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
 174                 printf " * $%s$\n", "FreeBSD" > syshdr
 175                 printf " */\n\n" > syshdr
 176
 177                 printf "# FreeBSD system call object files.\n" > sysmk
 178                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
 179                 printf "# $%s$\n", "FreeBSD" > sysmk
 180                 printf "MIASM = " > sysmk
 181
 182                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
 183                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
 184                 printf " * $%s$\n", "FreeBSD" > systrace
 185                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
 186                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
 187                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
 188                 printf "\tswitch (sysnum) {\n" > systrace
 189
 190                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
 191                 printf "\tswitch (sysnum) {\n" > systracetmp
 192
 193                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
 194                 printf "\tswitch (sysnum) {\n" > systraceret
 195         }
 196         NR == 1 {
 197                 next
 198         }
 199         NF == 0 || $1 ~ /^;/ {
 200                 next
 201         }
 202         $1 ~ /^#[       ]*include/ {
 203                 print > sysinc
 204                 next
 205         }
 206         $1 ~ /^#[       ]*if/ {
 207                 print > sysent
 208                 print > sysdcl
 209                 print > sysarg
 210                 print > syscompat
 211                 print > syscompat4
 212                 print > syscompat6
 213                 print > syscompat7
 214                 print > syscompat10
 215                 print > syscompat11
 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 > syscompat11
 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 > syscompat11
 250                 print > sysnames
 251                 print > systrace
 252                 print > systracetmp
 253                 print > systraceret
 254                 next
 255         }
 256         syscall != $1 {
 257                 printf "%s: line %d: syscall number out of sync at %d\n",
 258                     infile, NR, syscall
 259                 printf "line is:\n"
 260                 print
 261                 exit 1
 262         }
 263         # Returns true if the type "name" is the first flag in the type field
 264         function type(name, flags, n) {
 265                 n = split($3, flags, /\|/)
 266                 return (n > 0 && flags[1] == name)
 267         }
 268         # Returns true if the flag "name" is set in the type field
 269         function flag(name, flags, i, n) {
 270                 n = split($3, flags, /\|/)
 271                 for (i = 1; i <= n; i++)
 272                         if (flags[i] == name)
 273                                 return 1
 274                 return 0
 275         }
 276         function align_sysent_comment(column) {
 277                 printf("\t") > sysent
 278                 column = column + 8 - column % 8
 279                 while (column < 56) {
 280                         printf("\t") > sysent
 281                         column = column + 8
 282                 }
 283         }
 284         function parserr(was, wanted) {
 285                 printf "%s: line %d: unexpected %s (expected %s)\n",
 286                     infile, NR, was, wanted
 287                 exit 1
 288         }
 289         function parseline() {
 290                 f=4                     # toss number, type, audit event
 291                 argc= 0;
 292                 argssize = "0"
 293                 thr_flag = "SY_THR_STATIC"
 294                 if (flag("NOTSTATIC")) {
 295                         thr_flag = "SY_THR_ABSENT"
 296                 }
 297                 if ($NF != "}") {
 298                         funcalias=$(NF-2)
 299                         argalias=$(NF-1)
 300                         rettype=$NF
 301                         end=NF-3
 302                 } else {
 303                         funcalias=""
 304                         argalias=""
 305                         rettype="int"
 306                         end=NF
 307                 }
 308                 if (flag("NODEF")) {
 309                         auditev="AUE_NULL"
 310                         funcname=$4
 311                         argssize = "AS(" $6 ")"
 312                         return
 313                 }
 314                 if ($f != "{")
 315                         parserr($f, "{")
 316                 f++
 317                 if ($end != "}")
 318                         parserr($end, "}")
 319                 end--
 320                 if ($end != ";")
 321                         parserr($end, ";")
 322                 end--
 323                 if ($end != ")")
 324                         parserr($end, ")")
 325                 end--
 326
 327                 syscallret=$f
 328                 f++
 329
 330                 funcname=$f
 331
 332                 #
 333                 # We now know the func name, so define a flags field for it.
 334                 # Do this before any other processing as we may return early
 335                 # from it.
 336                 #
 337                 for (cap in capenabled) {
 338                         if (funcname == capenabled[cap]) {
 339                                 flags = "SYF_CAPENABLED";
 340                                 break;
 341                         }
 342                 }
 343
 344                 if (funcalias == "")
 345                         funcalias = funcname
 346                 if (argalias == "") {
 347                         argalias = funcname "_args"
 348                         if (flag("COMPAT"))
 349                                 argalias = "o" argalias
 350                         if (flag("COMPAT4"))
 351                                 argalias = "freebsd4_" argalias
 352                         if (flag("COMPAT6"))
 353                                 argalias = "freebsd6_" argalias
 354                         if (flag("COMPAT7"))
 355                                 argalias = "freebsd7_" argalias
 356                         if (flag("COMPAT10"))
 357                                 argalias = "freebsd10_" argalias
 358                         if (flag("COMPAT11"))
 359                                 argalias = "freebsd11_" argalias
 360                 }
 361                 f++
 362
 363                 if ($f != "(")
 364                         parserr($f, ")")
 365                 f++
 366
 367                 if (f == end) {
 368                         if ($f != "void")
 369                                 parserr($f, "argument definition")
 370                         return
 371                 }
 372
 373                 while (f <= end) {
 374                         argc++
 375                         argtype[argc]=""
 376                         oldf=""
 377                         while (f < end && $(f+1) != ",") {
 378                                 if (argtype[argc] != "" && oldf != "*")
 379                                         argtype[argc] = argtype[argc]" ";
 380                                 argtype[argc] = argtype[argc]$f;
 381                                 oldf = $f;
 382                                 f++
 383                         }
 384                         if (argtype[argc] == "")
 385                                 parserr($f, "argument definition")
 386                         argname[argc]=$f;
 387                         f += 2;                 # skip name, and any comma
 388                 }
 389                 if (argc != 0)
 390                         argssize = "AS(" argalias ")"
 391         }
 392         {       comment = $4
 393                 if (NF < 7)
 394                         for (i = 5; i <= NF; i++)
 395                                 comment = comment " " $i
 396         }
 397
 398         #
 399         # The AUE_ audit event identifier.
 400         #
 401         {
 402                 auditev = $2;
 403         }
 404
 405         #
 406         # The flags, if any.
 407         #
 408         {
 409                 flags = "0";
 410         }
 411
 412         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 413             || type("NOSTD") {
 414                 parseline()
 415                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 416                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 417                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
 418                 if (argc > 0) {
 419                         printf("\t\tswitch(ndx) {\n") > systracetmp
 420                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 421                         for (i = 1; i <= argc; i++) {
 422                                 arg = argtype[i]
 423                                 sub("__restrict$", "", arg)
 424                                 if (index(arg, "*") > 0)
 425                                         printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 426                                 else
 427                                         printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 428                                 if (index(arg, "*") > 0 || arg == "caddr_t")
 429                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 430                                              i - 1, \
 431                                              argname[i], arg) > systrace
 432                                 else if (arg == "union l_semun")
 433                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
 434                                              i - 1, \
 435                                              argname[i], arg) > systrace
 436                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
 437                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 438                                              i - 1, \
 439                                              argname[i], arg) > systrace
 440                                 else
 441                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 442                                              i - 1, \
 443                                              argname[i], arg) > systrace
 444                         }
 445                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 446
 447                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
 448                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
 449                         printf("\t\tbreak;\n") > systraceret
 450                 }
 451                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 452                 printf("\t\tbreak;\n") > systracetmp
 453                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 454                     !flag("NODEF")) {
 455                         printf("struct %s {\n", argalias) > sysarg
 456                         for (i = 1; i <= argc; i++)
 457                                 printf("\tchar %s_l_[PADL_(%s)]; " \
 458                                     "%s %s; char %s_r_[PADR_(%s)];\n",
 459                                     argname[i], argtype[i],
 460                                     argtype[i], argname[i],
 461                                     argname[i], argtype[i]) > sysarg
 462                         printf("};\n") > sysarg
 463                 }
 464                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 465                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 466                             argalias) > sysarg
 467                 if (!flag("NOPROTO") && !flag("NODEF")) {
 468                         if (funcname == "nosys" || funcname == "lkmnosys" ||
 469                             funcname == "sysarch" || funcname ~ /^freebsd/ ||
 470                             funcname ~ /^linux/ || funcname ~ /^ibcs2/ ||
 471                             funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
 472                                 printf("%s\t%s(struct thread *, struct %s *)",
 473                                     rettype, funcname, argalias) > sysdcl
 474                         } else {
 475                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 476                                     rettype, funcname, argalias) > sysdcl
 477                         }
 478                         printf(";\n") > sysdcl
 479                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 480                             funcalias, auditev) > sysaue
 481                 }
 482                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 483                 column = 8 + 2 + length(argssize) + 15
 484                 if (flag("NOSTD")) {
 485                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
 486                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 487                 } else {
 488                         if (funcname == "nosys" || funcname == "sysarch" ||
 489                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 490                             funcname ~ /^linux/ || funcname ~ /^ibcs2/ ||
 491                             funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
 492                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 493                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 494                         } else {
 495                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 496                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 497                         }
 498                 }
 499                 align_sysent_comment(column)
 500                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 501                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 502                     funcalias, syscall, funcalias) > sysnames
 503                 if (!flag("NODEF")) {
 504                         printf("#define\t%s%s\t%d\n", syscallprefix,
 505                             funcalias, syscall) > syshdr
 506                         printf(" \\\n\t%s.o", funcalias) > sysmk
 507                 }
 508                 syscall++
 509                 next
 510         }
 511         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 512             type("COMPAT7") || type("COMPAT10") || type("COMPAT11") {
 513                 if (flag("COMPAT")) {
 514                         ncompat++
 515                         out = syscompat
 516                         outdcl = syscompatdcl
 517                         wrap = "compat"
 518                         prefix = "o"
 519                         descr = "old"
 520                 } else if (flag("COMPAT4")) {
 521                         ncompat4++
 522                         out = syscompat4
 523                         outdcl = syscompat4dcl
 524                         wrap = "compat4"
 525                         prefix = "freebsd4_"
 526                         descr = "freebsd4"
 527                 } else if (flag("COMPAT6")) {
 528                         ncompat6++
 529                         out = syscompat6
 530                         outdcl = syscompat6dcl
 531                         wrap = "compat6"
 532                         prefix = "freebsd6_"
 533                         descr = "freebsd6"
 534                 } else if (flag("COMPAT7")) {
 535                         ncompat7++
 536                         out = syscompat7
 537                         outdcl = syscompat7dcl
 538                         wrap = "compat7"
 539                         prefix = "freebsd7_"
 540                         descr = "freebsd7"
 541                 } else if (flag("COMPAT10")) {
 542                         ncompat10++
 543                         out = syscompat10
 544                         outdcl = syscompat10dcl
 545                         wrap = "compat10"
 546                         prefix = "freebsd10_"
 547                         descr = "freebsd10"
 548                 } else if (flag("COMPAT11")) {
 549                         ncompat11++
 550                         out = syscompat11
 551                         outdcl = syscompat11dcl
 552                         wrap = "compat11"
 553                         prefix = "freebsd11_"
 554                         descr = "freebsd11"
 555                 }
 556                 parseline()
 557                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 558                     !flag("NODEF")) {
 559                         printf("struct %s {\n", argalias) > out
 560                         for (i = 1; i <= argc; i++)
 561                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 562                                     "char %s_r_[PADR_(%s)];\n",
 563                                     argname[i], argtype[i],
 564                                     argtype[i], argname[i],
 565                                     argname[i], argtype[i]) > out
 566                         printf("};\n") > out
 567                 }
 568                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 569                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 570                             argalias) > sysarg
 571                 if (!flag("NOPROTO") && !flag("NODEF")) {
 572                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 573                             rettype, prefix, funcname, argalias) > outdcl
 574                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 575                             prefix, funcname, auditev) > sysaue
 576                 }
 577                 if (flag("NOSTD")) {
 578                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 579                             "0", "lkmressys", "AUE_NULL") > sysent
 580                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 581                             length("lkmressys") + length("AUE_NULL") + 3)
 582                 } else {
 583                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 584                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 585                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 586                             length(funcname) + length(auditev) + \
 587                             length(flags) + 4)
 588                 }
 589                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 590                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 591                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 592                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
 593                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
 594                         printf("\t\t\t\t/* %d is %s %s */\n",
 595                             syscall, descr, funcalias) > syshdr
 596                 } else if (!flag("NODEF")) {
 597                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 598                             prefix, funcalias, syscall) > syshdr
 599                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 600                 }
 601                 syscall++
 602                 next
 603         }
 604         type("OBSOL") {
 605                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 606                 align_sysent_comment(34)
 607                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 608                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 609                     $4, syscall, comment) > sysnames
 610                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 611                     syscall, comment) > syshdr
 612                 syscall++
 613                 next
 614         }
 615         type("UNIMPL") {
 616                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 617                     syscall, comment) > sysent
 618                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 619                     syscall, syscall, comment) > sysnames
 620                 syscall++
 621                 next
 622         }
 623         {
 624                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 625                 exit 1
 626         }
 627         END {
 628                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 629
 630                 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0 || ncompat10 != 0 || ncompat11 != 0)
 631                         printf "#include \"opt_compat.h\"\n\n" > syssw
 632
 633                 if (ncompat != 0) {
 634                         printf "\n#ifdef %s\n", compat > sysinc
 635                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 636                         printf "#else\n" > sysinc
 637                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 638                         printf "#endif\n" > sysinc
 639                 }
 640
 641                 if (ncompat4 != 0) {
 642                         printf "\n#ifdef %s\n", compat4 > sysinc
 643                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 644                         printf "#else\n" > sysinc
 645                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 646                         printf "#endif\n" > sysinc
 647                 }
 648
 649                 if (ncompat6 != 0) {
 650                         printf "\n#ifdef %s\n", compat6 > sysinc
 651                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 652                         printf "#else\n" > sysinc
 653                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 654                         printf "#endif\n" > sysinc
 655                 }
 656
 657                 if (ncompat7 != 0) {
 658                         printf "\n#ifdef %s\n", compat7 > sysinc
 659                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 660                         printf "#else\n" > sysinc
 661                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 662                         printf "#endif\n" > sysinc
 663                 }
 664                 if (ncompat10 != 0) {
 665                         printf "\n#ifdef %s\n", compat10 > sysinc
 666                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
 667                         printf "#else\n" > sysinc
 668                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 669                         printf "#endif\n" > sysinc
 670                 }
 671                 if (ncompat11 != 0) {
 672                         printf "\n#ifdef %s\n", compat11 > sysinc
 673                         printf "#define compat11(n, name) n, (sy_call_t *)__CONCAT(freebsd11_,name)\n" > sysinc
 674                         printf "#else\n" > sysinc
 675                         printf "#define compat11(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 676                         printf "#endif\n" > sysinc
 677                 }
 678
 679                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 680                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 681                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 682                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 683                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
 684                 printf("\n#endif /* %s */\n\n", compat11) > syscompat11dcl
 685
 686                 printf("\n#undef PAD_\n") > sysprotoend
 687                 printf("#undef PADL_\n") > sysprotoend
 688                 printf("#undef PADR_\n") > sysprotoend
 689                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 690
 691                 printf("\n") > sysmk
 692                 printf("};\n") > sysent
 693                 printf("};\n") > sysnames
 694                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 695                     > syshdr
 696                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 697                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 698                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
 699         } '
 700
 701 cat $sysinc $sysent >> $syssw
 702 cat $sysarg $sysdcl \
 703         $syscompat $syscompatdcl \
 704         $syscompat4 $syscompat4dcl \
 705         $syscompat6 $syscompat6dcl \
 706         $syscompat7 $syscompat7dcl \
 707         $syscompat10 $syscompat10dcl \
 708         $syscompat11 $syscompat11dcl \
 709         $sysaue $sysprotoend > $sysproto
 710 cat $systracetmp >> $systrace
 711 cat $systraceret >> $systrace
 712