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 capabilities_conf="capabilities.conf"
  49
  50 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
  51
  52 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
  53
  54 case $# in
  55     0)  echo "usage: $0 input-file <config-file>" 1>&2
  56         exit 1
  57         ;;
  58 esac
  59
  60 if [ -n "$2" ]; then
  61         . "$2"
  62 fi
  63
  64 if [ -n "$capenabled" ]; then
  65         # do nothing
  66 elif [ -r $capabilities_conf ]; then
  67         capenabled=`egrep -v '^#|^$' $capabilities_conf`
  68         capenabled=`echo $capenabled | sed 's/ /,/g'`
  69 else
  70         capenabled=""
  71 fi
  72
  73 sed -e '
  74         # FreeBSD ID, includes, comments, and blank lines
  75         /.*\$FreeBSD/b done_joining
  76         /^[#;]/b done_joining
  77         /^$/b done_joining
  78
  79         # Join lines ending in backslash
  80 :joining
  81         /\\$/{a\
  82
  83         N
  84         s/\\\n//
  85         b joining
  86         }
  87
  88         # OBSOL, etc lines without function signatures
  89         /^[0-9][^{]*$/b done_joining
  90
  91         # Join incomplete signatures.  The { must appear on the first line
  92         # and the } must appear on the last line (modulo lines joined by
  93         # backslashes).
  94         /^[^}]*$/{a\
  95
  96         N
  97         s/\n//
  98         b joining
  99         }
 100 :done_joining
 101 2,${
 102         /^#/!s/\([{}()*,]\)/ \1 /g
 103 }
 104 ' < $1 | awk "
 105         BEGIN {
 106                 sysaue = \"$sysaue\"
 107                 sysdcl = \"$sysdcl\"
 108                 sysproto = \"$sysproto\"
 109                 sysprotoend = \"$sysprotoend\"
 110                 sysproto_h = \"$sysproto_h\"
 111                 syscompat = \"$syscompat\"
 112                 syscompatdcl = \"$syscompatdcl\"
 113                 syscompat4 = \"$syscompat4\"
 114                 syscompat4dcl = \"$syscompat4dcl\"
 115                 syscompat6 = \"$syscompat6\"
 116                 syscompat6dcl = \"$syscompat6dcl\"
 117                 syscompat7 = \"$syscompat7\"
 118                 syscompat7dcl = \"$syscompat7dcl\"
 119                 syscompat10 = \"$syscompat10\"
 120                 syscompat10dcl = \"$syscompat10dcl\"
 121                 syscompat11 = \"$syscompat11\"
 122                 syscompat11dcl = \"$syscompat11dcl\"
 123                 sysent = \"$sysent\"
 124                 syssw = \"$syssw\"
 125                 sysinc = \"$sysinc\"
 126                 sysarg = \"$sysarg\"
 127                 sysnames = \"$sysnames\"
 128                 syshdr = \"$syshdr\"
 129                 sysmk = \"$sysmk\"
 130                 systrace = \"$systrace\"
 131                 systracetmp = \"$systracetmp\"
 132                 systraceret = \"$systraceret\"
 133                 compat = \"$compat\"
 134                 compat4 = \"$compat4\"
 135                 compat6 = \"$compat6\"
 136                 compat7 = \"$compat7\"
 137                 compat10 = \"$compat10\"
 138                 compat11 = \"$compat11\"
 139                 syscallprefix = \"$syscallprefix\"
 140                 switchname = \"$switchname\"
 141                 namesname = \"$namesname\"
 142                 infile = \"$1\"
 143                 abi_func_prefix = \"$abi_func_prefix\"
 144                 capenabled_string = \"$capenabled\"
 145                 "'
 146
 147                 # Avoid a literal generated file tag here.
 148                 generated = "@" "generated";
 149
 150                 split(capenabled_string, capenabled, ",");
 151
 152                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 153                 printf "struct sysent %s[] = {\n",switchname > sysent
 154
 155                 printf "/*\n * System call switch table.\n *\n" > syssw
 156                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > syssw
 157                 printf " * $%s$\n", "FreeBSD" > syssw
 158                 printf " */\n\n" > syssw
 159
 160                 printf "/*\n * System call prototypes.\n *\n" > sysarg
 161                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > sysarg
 162                 printf " * $%s$\n", "FreeBSD" > sysarg
 163                 printf " */\n\n" > sysarg
 164                 printf "#ifndef %s\n", sysproto_h > sysarg
 165                 printf "#define\t%s\n\n", sysproto_h > sysarg
 166                 printf "#include <sys/signal.h>\n" > sysarg
 167                 printf "#include <sys/acl.h>\n" > sysarg
 168                 printf "#include <sys/cpuset.h>\n" > sysarg
 169                 printf "#include <sys/domainset.h>\n" > sysarg
 170                 printf "#include <sys/_ffcounter.h>\n" > sysarg
 171                 printf "#include <sys/_semaphore.h>\n" > sysarg
 172                 printf "#include <sys/ucontext.h>\n" > sysarg
 173                 printf "#include <sys/wait.h>\n\n" > sysarg
 174                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
 175                 printf "struct proc;\n\n" > sysarg
 176                 printf "struct thread;\n\n" > sysarg
 177                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 178                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 179                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 180                 printf "#define\tPADL_(t)\t0\n" > sysarg
 181                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 182                 printf "#else\n" > sysarg
 183                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 184                 printf "#define\tPADR_(t)\t0\n" > sysarg
 185                 printf "#endif\n\n" > sysarg
 186
 187                 printf "\n#ifdef %s\n\n", compat > syscompat
 188                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
 189                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
 190                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
 191                 printf "\n#ifdef %s\n\n", compat10 > syscompat10
 192                 printf "\n#ifdef %s\n\n", compat11 > syscompat11
 193
 194                 printf "/*\n * System call names.\n *\n" > sysnames
 195                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > sysnames
 196                 printf " * $%s$\n", "FreeBSD" > sysnames
 197                 printf " */\n\n" > sysnames
 198                 printf "const char *%s[] = {\n", namesname > sysnames
 199
 200                 printf "/*\n * System call numbers.\n *\n" > syshdr
 201                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > syshdr
 202                 printf " * $%s$\n", "FreeBSD" > syshdr
 203                 printf " */\n\n" > syshdr
 204
 205                 printf "# FreeBSD system call object files.\n" > sysmk
 206                 printf "# DO NOT EDIT-- this file is automatically " generated ".\n" > sysmk
 207                 printf "# $%s$\n", "FreeBSD" > sysmk
 208                 printf "MIASM = " > sysmk
 209
 210                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
 211                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > systrace
 212                 printf " * $%s$\n", "FreeBSD" > systrace
 213                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
 214                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
 215                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
 216                 printf "\tswitch (sysnum) {\n" > systrace
 217
 218                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
 219                 printf "\tswitch (sysnum) {\n" > systracetmp
 220
 221                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
 222                 printf "\tswitch (sysnum) {\n" > systraceret
 223         }
 224         NR == 1 {
 225                 next
 226         }
 227         NF == 0 || $1 ~ /^;/ {
 228                 next
 229         }
 230         $1 ~ /^#[       ]*include/ {
 231                 print > sysinc
 232                 next
 233         }
 234         $1 ~ /^#[       ]*if/ {
 235                 print > sysent
 236                 print > sysdcl
 237                 print > sysarg
 238                 print > syscompat
 239                 print > syscompat4
 240                 print > syscompat6
 241                 print > syscompat7
 242                 print > syscompat10
 243                 print > syscompat11
 244                 print > sysnames
 245                 print > systrace
 246                 print > systracetmp
 247                 print > systraceret
 248                 savesyscall = syscall
 249                 next
 250         }
 251         $1 ~ /^#[       ]*else/ {
 252                 print > sysent
 253                 print > sysdcl
 254                 print > sysarg
 255                 print > syscompat
 256                 print > syscompat4
 257                 print > syscompat6
 258                 print > syscompat7
 259                 print > syscompat10
 260                 print > syscompat11
 261                 print > sysnames
 262                 print > systrace
 263                 print > systracetmp
 264                 print > systraceret
 265                 syscall = savesyscall
 266                 next
 267         }
 268         $1 ~ /^#/ {
 269                 print > sysent
 270                 print > sysdcl
 271                 print > sysarg
 272                 print > syscompat
 273                 print > syscompat4
 274                 print > syscompat6
 275                 print > syscompat7
 276                 print > syscompat10
 277                 print > syscompat11
 278                 print > sysnames
 279                 print > systrace
 280                 print > systracetmp
 281                 print > systraceret
 282                 next
 283         }
 284         # Returns true if the type "name" is the first flag in the type field
 285         function type(name, flags, n) {
 286                 n = split($3, flags, /\|/)
 287                 return (n > 0 && flags[1] == name)
 288         }
 289         # Returns true if the flag "name" is set in the type field
 290         function flag(name, flags, i, n) {
 291                 n = split($3, flags, /\|/)
 292                 for (i = 1; i <= n; i++)
 293                         if (flags[i] == name)
 294                                 return 1
 295                 return 0
 296         }
 297         {
 298                 n = split($1, syscall_range, /-/)
 299                 if (n == 1) {
 300                         syscall_range[2] = syscall_range[1]
 301                 } else if (n == 2) {
 302                         if (!type("UNIMPL")) {
 303                                 printf "%s: line %d: range permitted only with UNIMPL\n",
 304                                     infile, NR
 305                                 exit 1
 306                         }
 307                 } else {
 308                         printf "%s: line %d: invalid syscall number or range %s\n",
 309                             infile, NR, $1
 310                         exit 1
 311                 }
 312         }
 313         syscall != syscall_range[1] {
 314                 printf "%s: line %d: syscall number out of sync at %d\n",
 315                     infile, NR, syscall
 316                 printf "line is:\n"
 317                 print
 318                 exit 1
 319         }
 320         function align_sysent_comment(column) {
 321                 printf("\t") > sysent
 322                 column = column + 8 - column % 8
 323                 while (column < 56) {
 324                         printf("\t") > sysent
 325                         column = column + 8
 326                 }
 327         }
 328         function parserr(was, wanted) {
 329                 printf "%s: line %d: unexpected %s (expected %s)\n",
 330                     infile, NR, was, wanted
 331                 exit 1
 332         }
 333         function parseline() {
 334                 f=4                     # toss number, type, audit event
 335                 argc= 0;
 336                 argssize = "0"
 337                 thr_flag = "SY_THR_STATIC"
 338                 if (flag("NOTSTATIC")) {
 339                         thr_flag = "SY_THR_ABSENT"
 340                 }
 341                 if ($NF != "}") {
 342                         funcalias=$(NF-2)
 343                         argalias=$(NF-1)
 344                         rettype=$NF
 345                         end=NF-3
 346                 } else {
 347                         funcalias=""
 348                         argalias=""
 349                         rettype="int"
 350                         end=NF
 351                 }
 352                 if (flag("NODEF")) {
 353                         auditev="AUE_NULL"
 354                         funcname=$4
 355                         argssize = "AS(" $6 ")"
 356                         return
 357                 }
 358                 if ($f != "{")
 359                         parserr($f, "{")
 360                 f++
 361                 if ($end != "}")
 362                         parserr($end, "}")
 363                 end--
 364                 if ($end != ";")
 365                         parserr($end, ";")
 366                 end--
 367                 if ($end != ")")
 368                         parserr($end, ")")
 369                 end--
 370
 371                 syscallret=$f
 372                 f++
 373
 374                 funcname=$f
 375
 376                 #
 377                 # We now know the func name, so define a flags field for it.
 378                 # Do this before any other processing as we may return early
 379                 # from it.
 380                 #
 381                 for (cap in capenabled) {
 382                         if (funcname == capenabled[cap] ||
 383                             funcname == abi_func_prefix capenabled[cap]) {
 384                                 flags = "SYF_CAPENABLED";
 385                                 break;
 386                         }
 387                 }
 388
 389                 if (funcalias == "")
 390                         funcalias = funcname
 391                 if (argalias == "") {
 392                         argalias = funcname "_args"
 393                         if (flag("COMPAT"))
 394                                 argalias = "o" argalias
 395                         if (flag("COMPAT4"))
 396                                 argalias = "freebsd4_" argalias
 397                         if (flag("COMPAT6"))
 398                                 argalias = "freebsd6_" argalias
 399                         if (flag("COMPAT7"))
 400                                 argalias = "freebsd7_" argalias
 401                         if (flag("COMPAT10"))
 402                                 argalias = "freebsd10_" argalias
 403                         if (flag("COMPAT11"))
 404                                 argalias = "freebsd11_" argalias
 405                 }
 406                 f++
 407
 408                 if ($f != "(")
 409                         parserr($f, ")")
 410                 f++
 411
 412                 if (f == end) {
 413                         if ($f != "void")
 414                                 parserr($f, "argument definition")
 415                         return
 416                 }
 417
 418                 while (f <= end) {
 419                         argc++
 420                         argtype[argc]=""
 421                         oldf=""
 422                         while (f < end && $(f+1) != ",") {
 423                                 if (argtype[argc] != "" && oldf != "*")
 424                                         argtype[argc] = argtype[argc]" ";
 425                                 argtype[argc] = argtype[argc]$f;
 426                                 oldf = $f;
 427                                 f++
 428                         }
 429                         if (argtype[argc] == "")
 430                                 parserr($f, "argument definition")
 431
 432                         # The parser adds space around parens.
 433                         # Remove it from annotations.
 434                         gsub(/ \( /, "(", argtype[argc]);
 435                         gsub(/ \)/, ")", argtype[argc]);
 436
 437                         #remove annotations
 438                         gsub(/_In[^ ]*[_)] /, "", argtype[argc]);
 439                         gsub(/_Out[^ ]*[_)] /, "", argtype[argc]);
 440
 441                         argname[argc]=$f;
 442                         f += 2;                 # skip name, and any comma
 443                 }
 444                 if (argc != 0)
 445                         argssize = "AS(" argalias ")"
 446         }
 447         {       comment = $4
 448                 if (NF < 7)
 449                         for (i = 5; i <= NF; i++)
 450                                 comment = comment " " $i
 451         }
 452
 453         #
 454         # The AUE_ audit event identifier.
 455         #
 456         {
 457                 auditev = $2;
 458         }
 459
 460         #
 461         # The flags, if any.
 462         #
 463         {
 464                 flags = "0";
 465         }
 466
 467         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 468             || type("NOSTD") {
 469                 parseline()
 470                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 471                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 472                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
 473                 if (argc > 0) {
 474                         printf("\t\tswitch(ndx) {\n") > systracetmp
 475                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 476                         for (i = 1; i <= argc; i++) {
 477                                 arg = argtype[i]
 478                                 sub("__restrict$", "", arg)
 479                                 if (index(arg, "*") > 0)
 480                                         printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 481                                 else
 482                                         printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 483                                 if (index(arg, "*") > 0 || arg == "caddr_t")
 484                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 485                                              i - 1, \
 486                                              argname[i], arg) > systrace
 487                                 else if (arg == "union l_semun")
 488                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
 489                                              i - 1, \
 490                                              argname[i], arg) > systrace
 491                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
 492                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 493                                              i - 1, \
 494                                              argname[i], arg) > systrace
 495                                 else
 496                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 497                                              i - 1, \
 498                                              argname[i], arg) > systrace
 499                         }
 500                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 501
 502                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
 503                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
 504                         printf("\t\tbreak;\n") > systraceret
 505                 }
 506                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 507                 printf("\t\tbreak;\n") > systracetmp
 508                 if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF")) {
 509                         if (argc != 0) {
 510                                 printf("struct %s {\n", argalias) > sysarg
 511                                 for (i = 1; i <= argc; i++)
 512                                         printf("\tchar %s_l_[PADL_(%s)]; " \
 513                                             "%s %s; char %s_r_[PADR_(%s)];\n",
 514                                             argname[i], argtype[i],
 515                                             argtype[i], argname[i],
 516                                             argname[i], argtype[i]) > sysarg
 517                                 printf("};\n") > sysarg
 518                         } else
 519                                 printf("struct %s {\n\tregister_t dummy;\n};\n",
 520                                     argalias) > sysarg
 521                 }
 522                 if (!flag("NOPROTO") && !flag("NODEF")) {
 523                         if (funcname == "nosys" || funcname == "lkmnosys" ||
 524                             funcname == "sysarch" || funcname ~ /^freebsd/ ||
 525                             funcname ~ /^linux/ || funcname ~ /^ibcs2/ ||
 526                             funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
 527                                 printf("%s\t%s(struct thread *, struct %s *)",
 528                                     rettype, funcname, argalias) > sysdcl
 529                         } else {
 530                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 531                                     rettype, funcname, argalias) > sysdcl
 532                         }
 533                         printf(";\n") > sysdcl
 534                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 535                             funcalias, auditev) > sysaue
 536                 }
 537                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 538                 column = 8 + 2 + length(argssize) + 15
 539                 if (flag("NOSTD")) {
 540                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
 541                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 542                 } else {
 543                         if (funcname == "nosys" || funcname == "sysarch" ||
 544                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 545                             funcname ~ /^linux/ || funcname ~ /^ibcs2/ ||
 546                             funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
 547                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 548                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 549                         } else {
 550                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 551                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 552                         }
 553                 }
 554                 align_sysent_comment(column)
 555                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 556                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 557                     funcalias, syscall, funcalias) > sysnames
 558                 if (!flag("NODEF")) {
 559                         printf("#define\t%s%s\t%d\n", syscallprefix,
 560                             funcalias, syscall) > syshdr
 561                         printf(" \\\n\t%s.o", funcalias) > sysmk
 562                 }
 563                 syscall++
 564                 next
 565         }
 566         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 567             type("COMPAT7") || type("COMPAT10") || type("COMPAT11") {
 568                 if (flag("COMPAT")) {
 569                         ncompat++
 570                         out = syscompat
 571                         outdcl = syscompatdcl
 572                         wrap = "compat"
 573                         prefix = "o"
 574                         descr = "old"
 575                 } else if (flag("COMPAT4")) {
 576                         ncompat4++
 577                         out = syscompat4
 578                         outdcl = syscompat4dcl
 579                         wrap = "compat4"
 580                         prefix = "freebsd4_"
 581                         descr = "freebsd4"
 582                 } else if (flag("COMPAT6")) {
 583                         ncompat6++
 584                         out = syscompat6
 585                         outdcl = syscompat6dcl
 586                         wrap = "compat6"
 587                         prefix = "freebsd6_"
 588                         descr = "freebsd6"
 589                 } else if (flag("COMPAT7")) {
 590                         ncompat7++
 591                         out = syscompat7
 592                         outdcl = syscompat7dcl
 593                         wrap = "compat7"
 594                         prefix = "freebsd7_"
 595                         descr = "freebsd7"
 596                 } else if (flag("COMPAT10")) {
 597                         ncompat10++
 598                         out = syscompat10
 599                         outdcl = syscompat10dcl
 600                         wrap = "compat10"
 601                         prefix = "freebsd10_"
 602                         descr = "freebsd10"
 603                 } else if (flag("COMPAT11")) {
 604                         ncompat11++
 605                         out = syscompat11
 606                         outdcl = syscompat11dcl
 607                         wrap = "compat11"
 608                         prefix = "freebsd11_"
 609                         descr = "freebsd11"
 610                 }
 611                 parseline()
 612                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 613                     !flag("NODEF")) {
 614                         printf("struct %s {\n", argalias) > out
 615                         for (i = 1; i <= argc; i++)
 616                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 617                                     "char %s_r_[PADR_(%s)];\n",
 618                                     argname[i], argtype[i],
 619                                     argtype[i], argname[i],
 620                                     argname[i], argtype[i]) > out
 621                         printf("};\n") > out
 622                 }
 623                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 624                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 625                             argalias) > sysarg
 626                 if (!flag("NOPROTO") && !flag("NODEF")) {
 627                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 628                             rettype, prefix, funcname, argalias) > outdcl
 629                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 630                             prefix, funcname, auditev) > sysaue
 631                 }
 632                 if (flag("NOSTD")) {
 633                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 634                             "0", "lkmressys", "AUE_NULL") > sysent
 635                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 636                             length("lkmressys") + length("AUE_NULL") + 3)
 637                 } else {
 638                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 639                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 640                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 641                             length(funcname) + length(auditev) + \
 642                             length(flags) + 4)
 643                 }
 644                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 645                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 646                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 647                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
 648                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
 649                         printf("\t\t\t\t/* %d is %s %s */\n",
 650                             syscall, descr, funcalias) > syshdr
 651                 } else if (!flag("NODEF")) {
 652                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 653                             prefix, funcalias, syscall) > syshdr
 654                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 655                 }
 656                 syscall++
 657                 next
 658         }
 659         type("OBSOL") {
 660                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 661                 align_sysent_comment(34)
 662                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 663                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 664                     $4, syscall, comment) > sysnames
 665                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 666                     syscall, comment) > syshdr
 667                 syscall++
 668                 next
 669         }
 670         type("UNIMPL") {
 671                 while (syscall <= syscall_range[2]) {
 672                         printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 673                             syscall, comment) > sysent
 674                         printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 675                             syscall, syscall, comment) > sysnames
 676                         syscall++
 677                 }
 678                 next
 679         }
 680         {
 681                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 682                 exit 1
 683         }
 684         END {
 685                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 686
 687                 if (ncompat != 0) {
 688                         printf "\n#ifdef %s\n", compat > sysinc
 689                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 690                         printf "#else\n" > sysinc
 691                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 692                         printf "#endif\n" > sysinc
 693                 }
 694
 695                 if (ncompat4 != 0) {
 696                         printf "\n#ifdef %s\n", compat4 > sysinc
 697                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 698                         printf "#else\n" > sysinc
 699                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 700                         printf "#endif\n" > sysinc
 701                 }
 702
 703                 if (ncompat6 != 0) {
 704                         printf "\n#ifdef %s\n", compat6 > sysinc
 705                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 706                         printf "#else\n" > sysinc
 707                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 708                         printf "#endif\n" > sysinc
 709                 }
 710
 711                 if (ncompat7 != 0) {
 712                         printf "\n#ifdef %s\n", compat7 > sysinc
 713                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 714                         printf "#else\n" > sysinc
 715                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 716                         printf "#endif\n" > sysinc
 717                 }
 718                 if (ncompat10 != 0) {
 719                         printf "\n#ifdef %s\n", compat10 > sysinc
 720                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
 721                         printf "#else\n" > sysinc
 722                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 723                         printf "#endif\n" > sysinc
 724                 }
 725                 if (ncompat11 != 0) {
 726                         printf "\n#ifdef %s\n", compat11 > sysinc
 727                         printf "#define compat11(n, name) n, (sy_call_t *)__CONCAT(freebsd11_,name)\n" > sysinc
 728                         printf "#else\n" > sysinc
 729                         printf "#define compat11(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 730                         printf "#endif\n" > sysinc
 731                 }
 732
 733                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 734                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 735                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 736                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 737                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
 738                 printf("\n#endif /* %s */\n\n", compat11) > syscompat11dcl
 739
 740                 printf("\n#undef PAD_\n") > sysprotoend
 741                 printf("#undef PADL_\n") > sysprotoend
 742                 printf("#undef PADR_\n") > sysprotoend
 743                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 744
 745                 printf("\n") > sysmk
 746                 printf("};\n") > sysent
 747                 printf("};\n") > sysnames
 748                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 749                     > syshdr
 750                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 751                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 752                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
 753         } '
 754
 755 cat $sysinc $sysent >> $syssw
 756 cat $sysarg $sysdcl \
 757         $syscompat $syscompatdcl \
 758         $syscompat4 $syscompat4dcl \
 759         $syscompat6 $syscompat6dcl \
 760         $syscompat7 $syscompat7dcl \
 761         $syscompat10 $syscompat10dcl \
 762         $syscompat11 $syscompat11dcl \
 763         $sysaue $sysprotoend > $sysproto
 764 cat $systracetmp >> $systrace
 765 cat $systraceret >> $systrace
 766