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/domainset.h>\n" > sysarg
 143                 printf "#include <sys/_ffcounter.h>\n" > sysarg
 144                 printf "#include <sys/_semaphore.h>\n" > sysarg
 145                 printf "#include <sys/ucontext.h>\n" > sysarg
 146                 printf "#include <sys/wait.h>\n\n" > sysarg
 147                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
 148                 printf "struct proc;\n\n" > sysarg
 149                 printf "struct thread;\n\n" > sysarg
 150                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 151                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 152                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 153                 printf "#define\tPADL_(t)\t0\n" > sysarg
 154                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 155                 printf "#else\n" > sysarg
 156                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 157                 printf "#define\tPADR_(t)\t0\n" > sysarg
 158                 printf "#endif\n\n" > sysarg
 159
 160                 printf "\n#ifdef %s\n\n", compat > syscompat
 161                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
 162                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
 163                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
 164                 printf "\n#ifdef %s\n\n", compat10 > syscompat10
 165                 printf "\n#ifdef %s\n\n", compat11 > syscompat11
 166
 167                 printf "/*\n * System call names.\n *\n" > sysnames
 168                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
 169                 printf " * $%s$\n", "FreeBSD" > sysnames
 170                 printf " */\n\n" > sysnames
 171                 printf "const char *%s[] = {\n", namesname > sysnames
 172
 173                 printf "/*\n * System call numbers.\n *\n" > syshdr
 174                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
 175                 printf " * $%s$\n", "FreeBSD" > syshdr
 176                 printf " */\n\n" > syshdr
 177
 178                 printf "# FreeBSD system call object files.\n" > sysmk
 179                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
 180                 printf "# $%s$\n", "FreeBSD" > sysmk
 181                 printf "MIASM = " > sysmk
 182
 183                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
 184                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
 185                 printf " * $%s$\n", "FreeBSD" > systrace
 186                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
 187                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
 188                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
 189                 printf "\tswitch (sysnum) {\n" > systrace
 190
 191                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
 192                 printf "\tswitch (sysnum) {\n" > systracetmp
 193
 194                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
 195                 printf "\tswitch (sysnum) {\n" > systraceret
 196         }
 197         NR == 1 {
 198                 next
 199         }
 200         NF == 0 || $1 ~ /^;/ {
 201                 next
 202         }
 203         $1 ~ /^#[       ]*include/ {
 204                 print > sysinc
 205                 next
 206         }
 207         $1 ~ /^#[       ]*if/ {
 208                 print > sysent
 209                 print > sysdcl
 210                 print > sysarg
 211                 print > syscompat
 212                 print > syscompat4
 213                 print > syscompat6
 214                 print > syscompat7
 215                 print > syscompat10
 216                 print > syscompat11
 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 > syscompat11
 234                 print > sysnames
 235                 print > systrace
 236                 print > systracetmp
 237                 print > systraceret
 238                 syscall = savesyscall
 239                 next
 240         }
 241         $1 ~ /^#/ {
 242                 print > sysent
 243                 print > sysdcl
 244                 print > sysarg
 245                 print > syscompat
 246                 print > syscompat4
 247                 print > syscompat6
 248                 print > syscompat7
 249                 print > syscompat10
 250                 print > syscompat11
 251                 print > sysnames
 252                 print > systrace
 253                 print > systracetmp
 254                 print > systraceret
 255                 next
 256         }
 257         syscall != $1 {
 258                 printf "%s: line %d: syscall number out of sync at %d\n",
 259                     infile, NR, syscall
 260                 printf "line is:\n"
 261                 print
 262                 exit 1
 263         }
 264         # Returns true if the type "name" is the first flag in the type field
 265         function type(name, flags, n) {
 266                 n = split($3, flags, /\|/)
 267                 return (n > 0 && flags[1] == name)
 268         }
 269         # Returns true if the flag "name" is set in the type field
 270         function flag(name, flags, i, n) {
 271                 n = split($3, flags, /\|/)
 272                 for (i = 1; i <= n; i++)
 273                         if (flags[i] == name)
 274                                 return 1
 275                 return 0
 276         }
 277         function align_sysent_comment(column) {
 278                 printf("\t") > sysent
 279                 column = column + 8 - column % 8
 280                 while (column < 56) {
 281                         printf("\t") > sysent
 282                         column = column + 8
 283                 }
 284         }
 285         function parserr(was, wanted) {
 286                 printf "%s: line %d: unexpected %s (expected %s)\n",
 287                     infile, NR, was, wanted
 288                 exit 1
 289         }
 290         function parseline() {
 291                 f=4                     # toss number, type, audit event
 292                 argc= 0;
 293                 argssize = "0"
 294                 thr_flag = "SY_THR_STATIC"
 295                 if (flag("NOTSTATIC")) {
 296                         thr_flag = "SY_THR_ABSENT"
 297                 }
 298                 if ($NF != "}") {
 299                         funcalias=$(NF-2)
 300                         argalias=$(NF-1)
 301                         rettype=$NF
 302                         end=NF-3
 303                 } else {
 304                         funcalias=""
 305                         argalias=""
 306                         rettype="int"
 307                         end=NF
 308                 }
 309                 if (flag("NODEF")) {
 310                         auditev="AUE_NULL"
 311                         funcname=$4
 312                         argssize = "AS(" $6 ")"
 313                         return
 314                 }
 315                 if ($f != "{")
 316                         parserr($f, "{")
 317                 f++
 318                 if ($end != "}")
 319                         parserr($end, "}")
 320                 end--
 321                 if ($end != ";")
 322                         parserr($end, ";")
 323                 end--
 324                 if ($end != ")")
 325                         parserr($end, ")")
 326                 end--
 327
 328                 syscallret=$f
 329                 f++
 330
 331                 funcname=$f
 332
 333                 #
 334                 # We now know the func name, so define a flags field for it.
 335                 # Do this before any other processing as we may return early
 336                 # from it.
 337                 #
 338                 for (cap in capenabled) {
 339                         if (funcname == capenabled[cap]) {
 340                                 flags = "SYF_CAPENABLED";
 341                                 break;
 342                         }
 343                 }
 344
 345                 if (funcalias == "")
 346                         funcalias = funcname
 347                 if (argalias == "") {
 348                         argalias = funcname "_args"
 349                         if (flag("COMPAT"))
 350                                 argalias = "o" argalias
 351                         if (flag("COMPAT4"))
 352                                 argalias = "freebsd4_" argalias
 353                         if (flag("COMPAT6"))
 354                                 argalias = "freebsd6_" argalias
 355                         if (flag("COMPAT7"))
 356                                 argalias = "freebsd7_" argalias
 357                         if (flag("COMPAT10"))
 358                                 argalias = "freebsd10_" argalias
 359                         if (flag("COMPAT11"))
 360                                 argalias = "freebsd11_" argalias
 361                 }
 362                 f++
 363
 364                 if ($f != "(")
 365                         parserr($f, ")")
 366                 f++
 367
 368                 if (f == end) {
 369                         if ($f != "void")
 370                                 parserr($f, "argument definition")
 371                         return
 372                 }
 373
 374                 while (f <= end) {
 375                         argc++
 376                         argtype[argc]=""
 377                         oldf=""
 378                         while (f < end && $(f+1) != ",") {
 379                                 if (argtype[argc] != "" && oldf != "*")
 380                                         argtype[argc] = argtype[argc]" ";
 381                                 argtype[argc] = argtype[argc]$f;
 382                                 oldf = $f;
 383                                 f++
 384                         }
 385                         if (argtype[argc] == "")
 386                                 parserr($f, "argument definition")
 387                         argname[argc]=$f;
 388                         f += 2;                 # skip name, and any comma
 389                 }
 390                 if (argc != 0)
 391                         argssize = "AS(" argalias ")"
 392         }
 393         {       comment = $4
 394                 if (NF < 7)
 395                         for (i = 5; i <= NF; i++)
 396                                 comment = comment " " $i
 397         }
 398
 399         #
 400         # The AUE_ audit event identifier.
 401         #
 402         {
 403                 auditev = $2;
 404         }
 405
 406         #
 407         # The flags, if any.
 408         #
 409         {
 410                 flags = "0";
 411         }
 412
 413         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 414             || type("NOSTD") {
 415                 parseline()
 416                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 417                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 418                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
 419                 if (argc > 0) {
 420                         printf("\t\tswitch(ndx) {\n") > systracetmp
 421                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 422                         for (i = 1; i <= argc; i++) {
 423                                 arg = argtype[i]
 424                                 sub("__restrict$", "", arg)
 425                                 if (index(arg, "*") > 0)
 426                                         printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 427                                 else
 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 ~ /^ibcs2/ ||
 472                             funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
 473                                 printf("%s\t%s(struct thread *, struct %s *)",
 474                                     rettype, funcname, argalias) > sysdcl
 475                         } else {
 476                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 477                                     rettype, funcname, argalias) > sysdcl
 478                         }
 479                         printf(";\n") > sysdcl
 480                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 481                             funcalias, auditev) > sysaue
 482                 }
 483                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 484                 column = 8 + 2 + length(argssize) + 15
 485                 if (flag("NOSTD")) {
 486                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
 487                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 488                 } else {
 489                         if (funcname == "nosys" || funcname == "sysarch" ||
 490                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 491                             funcname ~ /^linux/ || funcname ~ /^ibcs2/ ||
 492                             funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
 493                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 494                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 495                         } else {
 496                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 497                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 498                         }
 499                 }
 500                 align_sysent_comment(column)
 501                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 502                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 503                     funcalias, syscall, funcalias) > sysnames
 504                 if (!flag("NODEF")) {
 505                         printf("#define\t%s%s\t%d\n", syscallprefix,
 506                             funcalias, syscall) > syshdr
 507                         printf(" \\\n\t%s.o", funcalias) > sysmk
 508                 }
 509                 syscall++
 510                 next
 511         }
 512         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 513             type("COMPAT7") || type("COMPAT10") || type("COMPAT11") {
 514                 if (flag("COMPAT")) {
 515                         ncompat++
 516                         out = syscompat
 517                         outdcl = syscompatdcl
 518                         wrap = "compat"
 519                         prefix = "o"
 520                         descr = "old"
 521                 } else if (flag("COMPAT4")) {
 522                         ncompat4++
 523                         out = syscompat4
 524                         outdcl = syscompat4dcl
 525                         wrap = "compat4"
 526                         prefix = "freebsd4_"
 527                         descr = "freebsd4"
 528                 } else if (flag("COMPAT6")) {
 529                         ncompat6++
 530                         out = syscompat6
 531                         outdcl = syscompat6dcl
 532                         wrap = "compat6"
 533                         prefix = "freebsd6_"
 534                         descr = "freebsd6"
 535                 } else if (flag("COMPAT7")) {
 536                         ncompat7++
 537                         out = syscompat7
 538                         outdcl = syscompat7dcl
 539                         wrap = "compat7"
 540                         prefix = "freebsd7_"
 541                         descr = "freebsd7"
 542                 } else if (flag("COMPAT10")) {
 543                         ncompat10++
 544                         out = syscompat10
 545                         outdcl = syscompat10dcl
 546                         wrap = "compat10"
 547                         prefix = "freebsd10_"
 548                         descr = "freebsd10"
 549                 } else if (flag("COMPAT11")) {
 550                         ncompat11++
 551                         out = syscompat11
 552                         outdcl = syscompat11dcl
 553                         wrap = "compat11"
 554                         prefix = "freebsd11_"
 555                         descr = "freebsd11"
 556                 }
 557                 parseline()
 558                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 559                     !flag("NODEF")) {
 560                         printf("struct %s {\n", argalias) > out
 561                         for (i = 1; i <= argc; i++)
 562                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 563                                     "char %s_r_[PADR_(%s)];\n",
 564                                     argname[i], argtype[i],
 565                                     argtype[i], argname[i],
 566                                     argname[i], argtype[i]) > out
 567                         printf("};\n") > out
 568                 }
 569                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 570                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 571                             argalias) > sysarg
 572                 if (!flag("NOPROTO") && !flag("NODEF")) {
 573                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 574                             rettype, prefix, funcname, argalias) > outdcl
 575                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 576                             prefix, funcname, auditev) > sysaue
 577                 }
 578                 if (flag("NOSTD")) {
 579                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 580                             "0", "lkmressys", "AUE_NULL") > sysent
 581                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 582                             length("lkmressys") + length("AUE_NULL") + 3)
 583                 } else {
 584                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 585                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 586                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 587                             length(funcname) + length(auditev) + \
 588                             length(flags) + 4)
 589                 }
 590                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 591                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 592                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 593                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
 594                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
 595                         printf("\t\t\t\t/* %d is %s %s */\n",
 596                             syscall, descr, funcalias) > syshdr
 597                 } else if (!flag("NODEF")) {
 598                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 599                             prefix, funcalias, syscall) > syshdr
 600                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 601                 }
 602                 syscall++
 603                 next
 604         }
 605         type("OBSOL") {
 606                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 607                 align_sysent_comment(34)
 608                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 609                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 610                     $4, syscall, comment) > sysnames
 611                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 612                     syscall, comment) > syshdr
 613                 syscall++
 614                 next
 615         }
 616         type("UNIMPL") {
 617                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 618                     syscall, comment) > sysent
 619                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 620                     syscall, syscall, comment) > sysnames
 621                 syscall++
 622                 next
 623         }
 624         {
 625                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 626                 exit 1
 627         }
 628         END {
 629                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 630
 631                 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0 || ncompat10 != 0 || ncompat11 != 0)
 632                         printf "#include \"opt_compat.h\"\n\n" > syssw
 633
 634                 if (ncompat != 0) {
 635                         printf "\n#ifdef %s\n", compat > sysinc
 636                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 637                         printf "#else\n" > sysinc
 638                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 639                         printf "#endif\n" > sysinc
 640                 }
 641
 642                 if (ncompat4 != 0) {
 643                         printf "\n#ifdef %s\n", compat4 > sysinc
 644                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 645                         printf "#else\n" > sysinc
 646                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 647                         printf "#endif\n" > sysinc
 648                 }
 649
 650                 if (ncompat6 != 0) {
 651                         printf "\n#ifdef %s\n", compat6 > sysinc
 652                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 653                         printf "#else\n" > sysinc
 654                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 655                         printf "#endif\n" > sysinc
 656                 }
 657
 658                 if (ncompat7 != 0) {
 659                         printf "\n#ifdef %s\n", compat7 > sysinc
 660                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 661                         printf "#else\n" > sysinc
 662                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 663                         printf "#endif\n" > sysinc
 664                 }
 665                 if (ncompat10 != 0) {
 666                         printf "\n#ifdef %s\n", compat10 > sysinc
 667                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
 668                         printf "#else\n" > sysinc
 669                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 670                         printf "#endif\n" > sysinc
 671                 }
 672                 if (ncompat11 != 0) {
 673                         printf "\n#ifdef %s\n", compat11 > sysinc
 674                         printf "#define compat11(n, name) n, (sy_call_t *)__CONCAT(freebsd11_,name)\n" > sysinc
 675                         printf "#else\n" > sysinc
 676                         printf "#define compat11(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 677                         printf "#endif\n" > sysinc
 678                 }
 679
 680                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 681                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 682                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 683                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 684                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
 685                 printf("\n#endif /* %s */\n\n", compat11) > syscompat11dcl
 686
 687                 printf("\n#undef PAD_\n") > sysprotoend
 688                 printf("#undef PADL_\n") > sysprotoend
 689                 printf("#undef PADR_\n") > sysprotoend
 690                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 691
 692                 printf("\n") > sysmk
 693                 printf("};\n") > sysent
 694                 printf("};\n") > sysnames
 695                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 696                     > syshdr
 697                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 698                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 699                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
 700         } '
 701
 702 cat $sysinc $sysent >> $syssw
 703 cat $sysarg $sysdcl \
 704         $syscompat $syscompatdcl \
 705         $syscompat4 $syscompat4dcl \
 706         $syscompat6 $syscompat6dcl \
 707         $syscompat7 $syscompat7dcl \
 708         $syscompat10 $syscompat10dcl \
 709         $syscompat11 $syscompat11dcl \
 710         $sysaue $sysprotoend > $sysproto
 711 cat $systracetmp >> $systrace
 712 cat $systraceret >> $systrace
 713