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         # Returns true if the type "name" is the first flag in the type field
 258         function type(name, flags, n) {
 259                 n = split($3, flags, /\|/)
 260                 return (n > 0 && flags[1] == name)
 261         }
 262         # Returns true if the flag "name" is set in the type field
 263         function flag(name, flags, i, n) {
 264                 n = split($3, flags, /\|/)
 265                 for (i = 1; i <= n; i++)
 266                         if (flags[i] == name)
 267                                 return 1
 268                 return 0
 269         }
 270         {
 271                 n = split($1, syscall_range, /-/)
 272                 if (n == 1) {
 273                         syscall_range[2] = syscall_range[1]
 274                 } else if (n == 2) {
 275                         if (!type("UNIMPL")) {
 276                                 printf "%s: line %d: range permitted only with UNIMPL\n",
 277                                     infile, NR
 278                                 exit 1
 279                         }
 280                 } else {
 281                         printf "%s: line %d: invalid syscall number or range %s\n",
 282                             infile, NR, $1
 283                         exit 1
 284                 }
 285         }
 286         syscall != syscall_range[1] {
 287                 printf "%s: line %d: syscall number out of sync at %d\n",
 288                     infile, NR, syscall
 289                 printf "line is:\n"
 290                 print
 291                 exit 1
 292         }
 293         function align_sysent_comment(column) {
 294                 printf("\t") > sysent
 295                 column = column + 8 - column % 8
 296                 while (column < 56) {
 297                         printf("\t") > sysent
 298                         column = column + 8
 299                 }
 300         }
 301         function parserr(was, wanted) {
 302                 printf "%s: line %d: unexpected %s (expected %s)\n",
 303                     infile, NR, was, wanted
 304                 exit 1
 305         }
 306         function parseline() {
 307                 f=4                     # toss number, type, audit event
 308                 argc= 0;
 309                 argssize = "0"
 310                 thr_flag = "SY_THR_STATIC"
 311                 if (flag("NOTSTATIC")) {
 312                         thr_flag = "SY_THR_ABSENT"
 313                 }
 314                 if ($NF != "}") {
 315                         funcalias=$(NF-2)
 316                         argalias=$(NF-1)
 317                         rettype=$NF
 318                         end=NF-3
 319                 } else {
 320                         funcalias=""
 321                         argalias=""
 322                         rettype="int"
 323                         end=NF
 324                 }
 325                 if (flag("NODEF")) {
 326                         auditev="AUE_NULL"
 327                         funcname=$4
 328                         argssize = "AS(" $6 ")"
 329                         return
 330                 }
 331                 if ($f != "{")
 332                         parserr($f, "{")
 333                 f++
 334                 if ($end != "}")
 335                         parserr($end, "}")
 336                 end--
 337                 if ($end != ";")
 338                         parserr($end, ";")
 339                 end--
 340                 if ($end != ")")
 341                         parserr($end, ")")
 342                 end--
 343
 344                 syscallret=$f
 345                 f++
 346
 347                 funcname=$f
 348
 349                 #
 350                 # We now know the func name, so define a flags field for it.
 351                 # Do this before any other processing as we may return early
 352                 # from it.
 353                 #
 354                 for (cap in capenabled) {
 355                         if (funcname == capenabled[cap]) {
 356                                 flags = "SYF_CAPENABLED";
 357                                 break;
 358                         }
 359                 }
 360
 361                 if (funcalias == "")
 362                         funcalias = funcname
 363                 if (argalias == "") {
 364                         argalias = funcname "_args"
 365                         if (flag("COMPAT"))
 366                                 argalias = "o" argalias
 367                         if (flag("COMPAT4"))
 368                                 argalias = "freebsd4_" argalias
 369                         if (flag("COMPAT6"))
 370                                 argalias = "freebsd6_" argalias
 371                         if (flag("COMPAT7"))
 372                                 argalias = "freebsd7_" argalias
 373                         if (flag("COMPAT10"))
 374                                 argalias = "freebsd10_" argalias
 375                         if (flag("COMPAT11"))
 376                                 argalias = "freebsd11_" argalias
 377                 }
 378                 f++
 379
 380                 if ($f != "(")
 381                         parserr($f, ")")
 382                 f++
 383
 384                 if (f == end) {
 385                         if ($f != "void")
 386                                 parserr($f, "argument definition")
 387                         return
 388                 }
 389
 390                 while (f <= end) {
 391                         argc++
 392                         argtype[argc]=""
 393                         oldf=""
 394                         while (f < end && $(f+1) != ",") {
 395                                 if (argtype[argc] != "" && oldf != "*")
 396                                         argtype[argc] = argtype[argc]" ";
 397                                 argtype[argc] = argtype[argc]$f;
 398                                 oldf = $f;
 399                                 f++
 400                         }
 401                         if (argtype[argc] == "")
 402                                 parserr($f, "argument definition")
 403                         argname[argc]=$f;
 404                         f += 2;                 # skip name, and any comma
 405                 }
 406                 if (argc != 0)
 407                         argssize = "AS(" argalias ")"
 408         }
 409         {       comment = $4
 410                 if (NF < 7)
 411                         for (i = 5; i <= NF; i++)
 412                                 comment = comment " " $i
 413         }
 414
 415         #
 416         # The AUE_ audit event identifier.
 417         #
 418         {
 419                 auditev = $2;
 420         }
 421
 422         #
 423         # The flags, if any.
 424         #
 425         {
 426                 flags = "0";
 427         }
 428
 429         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 430             || type("NOSTD") {
 431                 parseline()
 432                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 433                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 434                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
 435                 if (argc > 0) {
 436                         printf("\t\tswitch(ndx) {\n") > systracetmp
 437                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 438                         for (i = 1; i <= argc; i++) {
 439                                 arg = argtype[i]
 440                                 sub("__restrict$", "", arg)
 441                                 if (index(arg, "*") > 0)
 442                                         printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 443                                 else
 444                                         printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 445                                 if (index(arg, "*") > 0 || arg == "caddr_t")
 446                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 447                                              i - 1, \
 448                                              argname[i], arg) > systrace
 449                                 else if (arg == "union l_semun")
 450                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
 451                                              i - 1, \
 452                                              argname[i], arg) > systrace
 453                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
 454                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 455                                              i - 1, \
 456                                              argname[i], arg) > systrace
 457                                 else
 458                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 459                                              i - 1, \
 460                                              argname[i], arg) > systrace
 461                         }
 462                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 463
 464                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
 465                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
 466                         printf("\t\tbreak;\n") > systraceret
 467                 }
 468                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 469                 printf("\t\tbreak;\n") > systracetmp
 470                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 471                     !flag("NODEF")) {
 472                         printf("struct %s {\n", argalias) > sysarg
 473                         for (i = 1; i <= argc; i++)
 474                                 printf("\tchar %s_l_[PADL_(%s)]; " \
 475                                     "%s %s; char %s_r_[PADR_(%s)];\n",
 476                                     argname[i], argtype[i],
 477                                     argtype[i], argname[i],
 478                                     argname[i], argtype[i]) > sysarg
 479                         printf("};\n") > sysarg
 480                 }
 481                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 482                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 483                             argalias) > sysarg
 484                 if (!flag("NOPROTO") && !flag("NODEF")) {
 485                         if (funcname == "nosys" || funcname == "lkmnosys" ||
 486                             funcname == "sysarch" || funcname ~ /^freebsd/ ||
 487                             funcname ~ /^linux/ || funcname ~ /^ibcs2/ ||
 488                             funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
 489                                 printf("%s\t%s(struct thread *, struct %s *)",
 490                                     rettype, funcname, argalias) > sysdcl
 491                         } else {
 492                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 493                                     rettype, funcname, argalias) > sysdcl
 494                         }
 495                         printf(";\n") > sysdcl
 496                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 497                             funcalias, auditev) > sysaue
 498                 }
 499                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 500                 column = 8 + 2 + length(argssize) + 15
 501                 if (flag("NOSTD")) {
 502                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
 503                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 504                 } else {
 505                         if (funcname == "nosys" || funcname == "sysarch" ||
 506                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 507                             funcname ~ /^linux/ || funcname ~ /^ibcs2/ ||
 508                             funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
 509                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 510                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 511                         } else {
 512                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 513                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 514                         }
 515                 }
 516                 align_sysent_comment(column)
 517                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 518                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 519                     funcalias, syscall, funcalias) > sysnames
 520                 if (!flag("NODEF")) {
 521                         printf("#define\t%s%s\t%d\n", syscallprefix,
 522                             funcalias, syscall) > syshdr
 523                         printf(" \\\n\t%s.o", funcalias) > sysmk
 524                 }
 525                 syscall++
 526                 next
 527         }
 528         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 529             type("COMPAT7") || type("COMPAT10") || type("COMPAT11") {
 530                 if (flag("COMPAT")) {
 531                         ncompat++
 532                         out = syscompat
 533                         outdcl = syscompatdcl
 534                         wrap = "compat"
 535                         prefix = "o"
 536                         descr = "old"
 537                 } else if (flag("COMPAT4")) {
 538                         ncompat4++
 539                         out = syscompat4
 540                         outdcl = syscompat4dcl
 541                         wrap = "compat4"
 542                         prefix = "freebsd4_"
 543                         descr = "freebsd4"
 544                 } else if (flag("COMPAT6")) {
 545                         ncompat6++
 546                         out = syscompat6
 547                         outdcl = syscompat6dcl
 548                         wrap = "compat6"
 549                         prefix = "freebsd6_"
 550                         descr = "freebsd6"
 551                 } else if (flag("COMPAT7")) {
 552                         ncompat7++
 553                         out = syscompat7
 554                         outdcl = syscompat7dcl
 555                         wrap = "compat7"
 556                         prefix = "freebsd7_"
 557                         descr = "freebsd7"
 558                 } else if (flag("COMPAT10")) {
 559                         ncompat10++
 560                         out = syscompat10
 561                         outdcl = syscompat10dcl
 562                         wrap = "compat10"
 563                         prefix = "freebsd10_"
 564                         descr = "freebsd10"
 565                 } else if (flag("COMPAT11")) {
 566                         ncompat11++
 567                         out = syscompat11
 568                         outdcl = syscompat11dcl
 569                         wrap = "compat11"
 570                         prefix = "freebsd11_"
 571                         descr = "freebsd11"
 572                 }
 573                 parseline()
 574                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 575                     !flag("NODEF")) {
 576                         printf("struct %s {\n", argalias) > out
 577                         for (i = 1; i <= argc; i++)
 578                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 579                                     "char %s_r_[PADR_(%s)];\n",
 580                                     argname[i], argtype[i],
 581                                     argtype[i], argname[i],
 582                                     argname[i], argtype[i]) > out
 583                         printf("};\n") > out
 584                 }
 585                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 586                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 587                             argalias) > sysarg
 588                 if (!flag("NOPROTO") && !flag("NODEF")) {
 589                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 590                             rettype, prefix, funcname, argalias) > outdcl
 591                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 592                             prefix, funcname, auditev) > sysaue
 593                 }
 594                 if (flag("NOSTD")) {
 595                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 596                             "0", "lkmressys", "AUE_NULL") > sysent
 597                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 598                             length("lkmressys") + length("AUE_NULL") + 3)
 599                 } else {
 600                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 601                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 602                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 603                             length(funcname) + length(auditev) + \
 604                             length(flags) + 4)
 605                 }
 606                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 607                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 608                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 609                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
 610                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
 611                         printf("\t\t\t\t/* %d is %s %s */\n",
 612                             syscall, descr, funcalias) > syshdr
 613                 } else if (!flag("NODEF")) {
 614                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 615                             prefix, funcalias, syscall) > syshdr
 616                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 617                 }
 618                 syscall++
 619                 next
 620         }
 621         type("OBSOL") {
 622                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 623                 align_sysent_comment(34)
 624                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 625                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 626                     $4, syscall, comment) > sysnames
 627                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 628                     syscall, comment) > syshdr
 629                 syscall++
 630                 next
 631         }
 632         type("UNIMPL") {
 633                 while (syscall <= syscall_range[2]) {
 634                         printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 635                             syscall, comment) > sysent
 636                         printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 637                             syscall, syscall, comment) > sysnames
 638                         syscall++
 639                 }
 640                 next
 641         }
 642         {
 643                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 644                 exit 1
 645         }
 646         END {
 647                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 648
 649                 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0 || ncompat10 != 0 || ncompat11 != 0)
 650                         printf "#include \"opt_compat.h\"\n\n" > syssw
 651
 652                 if (ncompat != 0) {
 653                         printf "\n#ifdef %s\n", compat > sysinc
 654                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 655                         printf "#else\n" > sysinc
 656                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 657                         printf "#endif\n" > sysinc
 658                 }
 659
 660                 if (ncompat4 != 0) {
 661                         printf "\n#ifdef %s\n", compat4 > sysinc
 662                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 663                         printf "#else\n" > sysinc
 664                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 665                         printf "#endif\n" > sysinc
 666                 }
 667
 668                 if (ncompat6 != 0) {
 669                         printf "\n#ifdef %s\n", compat6 > sysinc
 670                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 671                         printf "#else\n" > sysinc
 672                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 673                         printf "#endif\n" > sysinc
 674                 }
 675
 676                 if (ncompat7 != 0) {
 677                         printf "\n#ifdef %s\n", compat7 > sysinc
 678                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 679                         printf "#else\n" > sysinc
 680                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 681                         printf "#endif\n" > sysinc
 682                 }
 683                 if (ncompat10 != 0) {
 684                         printf "\n#ifdef %s\n", compat10 > sysinc
 685                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
 686                         printf "#else\n" > sysinc
 687                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 688                         printf "#endif\n" > sysinc
 689                 }
 690                 if (ncompat11 != 0) {
 691                         printf "\n#ifdef %s\n", compat11 > sysinc
 692                         printf "#define compat11(n, name) n, (sy_call_t *)__CONCAT(freebsd11_,name)\n" > sysinc
 693                         printf "#else\n" > sysinc
 694                         printf "#define compat11(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 695                         printf "#endif\n" > sysinc
 696                 }
 697
 698                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 699                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 700                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 701                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 702                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
 703                 printf("\n#endif /* %s */\n\n", compat11) > syscompat11dcl
 704
 705                 printf("\n#undef PAD_\n") > sysprotoend
 706                 printf("#undef PADL_\n") > sysprotoend
 707                 printf("#undef PADR_\n") > sysprotoend
 708                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 709
 710                 printf("\n") > sysmk
 711                 printf("};\n") > sysent
 712                 printf("};\n") > sysnames
 713                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 714                     > syshdr
 715                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 716                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 717                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
 718         } '
 719
 720 cat $sysinc $sysent >> $syssw
 721 cat $sysarg $sysdcl \
 722         $syscompat $syscompatdcl \
 723         $syscompat4 $syscompat4dcl \
 724         $syscompat6 $syscompat6dcl \
 725         $syscompat7 $syscompat7dcl \
 726         $syscompat10 $syscompat10dcl \
 727         $syscompat11 $syscompat11dcl \
 728         $sysaue $sysprotoend > $sysproto
 729 cat $systracetmp >> $systrace
 730 cat $systraceret >> $systrace
 731