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 [ -r $capabilities_conf ]; then
  65         capenabled=`egrep -v '^#|^$' $capabilities_conf`
  66         capenabled=`echo $capenabled | sed 's/ /,/g'`
  67 else
  68         capenabled=""
  69 fi
  70
  71 sed -e '
  72         # FreeBSD ID, includes, comments, and blank lines
  73         /.*\$FreeBSD/b done_joining
  74         /^[#;]/b done_joining
  75         /^$/b done_joining
  76
  77         # Join lines ending in backslash
  78 :joining
  79         /\\$/{a\
  80
  81         N
  82         s/\\\n//
  83         b joining
  84         }
  85
  86         # OBSOL, etc lines without function signatures
  87         /^[0-9][^{]*$/b done_joining
  88
  89         # Join incomplete signatures.  The { must appear on the first line
  90         # and the } must appear on the last line (modulo lines joined by
  91         # backslashes).
  92         /^[^}]*$/{a\
  93
  94         N
  95         s/\n//
  96         b joining
  97         }
  98 :done_joining
  99 2,${
 100         /^#/!s/\([{}()*,]\)/ \1 /g
 101 }
 102 ' < $1 | awk "
 103         BEGIN {
 104                 sysaue = \"$sysaue\"
 105                 sysdcl = \"$sysdcl\"
 106                 sysproto = \"$sysproto\"
 107                 sysprotoend = \"$sysprotoend\"
 108                 sysproto_h = \"$sysproto_h\"
 109                 syscompat = \"$syscompat\"
 110                 syscompatdcl = \"$syscompatdcl\"
 111                 syscompat4 = \"$syscompat4\"
 112                 syscompat4dcl = \"$syscompat4dcl\"
 113                 syscompat6 = \"$syscompat6\"
 114                 syscompat6dcl = \"$syscompat6dcl\"
 115                 syscompat7 = \"$syscompat7\"
 116                 syscompat7dcl = \"$syscompat7dcl\"
 117                 syscompat10 = \"$syscompat10\"
 118                 syscompat10dcl = \"$syscompat10dcl\"
 119                 syscompat11 = \"$syscompat11\"
 120                 syscompat11dcl = \"$syscompat11dcl\"
 121                 sysent = \"$sysent\"
 122                 syssw = \"$syssw\"
 123                 sysinc = \"$sysinc\"
 124                 sysarg = \"$sysarg\"
 125                 sysnames = \"$sysnames\"
 126                 syshdr = \"$syshdr\"
 127                 sysmk = \"$sysmk\"
 128                 systrace = \"$systrace\"
 129                 systracetmp = \"$systracetmp\"
 130                 systraceret = \"$systraceret\"
 131                 compat = \"$compat\"
 132                 compat4 = \"$compat4\"
 133                 compat6 = \"$compat6\"
 134                 compat7 = \"$compat7\"
 135                 compat10 = \"$compat10\"
 136                 compat11 = \"$compat11\"
 137                 syscallprefix = \"$syscallprefix\"
 138                 switchname = \"$switchname\"
 139                 namesname = \"$namesname\"
 140                 infile = \"$1\"
 141                 abi_func_prefix = \"$abi_func_prefix\"
 142                 capenabled_string = \"$capenabled\"
 143                 "'
 144
 145                 split(capenabled_string, capenabled, ",");
 146
 147                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 148                 printf "struct sysent %s[] = {\n",switchname > sysent
 149
 150                 printf "/*\n * System call switch table.\n *\n" > syssw
 151                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
 152                 printf " * $%s$\n", "FreeBSD" > syssw
 153                 printf " */\n\n" > syssw
 154
 155                 printf "/*\n * System call prototypes.\n *\n" > sysarg
 156                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
 157                 printf " * $%s$\n", "FreeBSD" > sysarg
 158                 printf " */\n\n" > sysarg
 159                 printf "#ifndef %s\n", sysproto_h > sysarg
 160                 printf "#define\t%s\n\n", sysproto_h > sysarg
 161                 printf "#include <sys/signal.h>\n" > sysarg
 162                 printf "#include <sys/acl.h>\n" > sysarg
 163                 printf "#include <sys/cpuset.h>\n" > sysarg
 164                 printf "#include <sys/domainset.h>\n" > sysarg
 165                 printf "#include <sys/_ffcounter.h>\n" > sysarg
 166                 printf "#include <sys/_semaphore.h>\n" > sysarg
 167                 printf "#include <sys/ucontext.h>\n" > sysarg
 168                 printf "#include <sys/wait.h>\n\n" > sysarg
 169                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
 170                 printf "struct proc;\n\n" > sysarg
 171                 printf "struct thread;\n\n" > sysarg
 172                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 173                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 174                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 175                 printf "#define\tPADL_(t)\t0\n" > sysarg
 176                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 177                 printf "#else\n" > sysarg
 178                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 179                 printf "#define\tPADR_(t)\t0\n" > sysarg
 180                 printf "#endif\n\n" > sysarg
 181
 182                 printf "\n#ifdef %s\n\n", compat > syscompat
 183                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
 184                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
 185                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
 186                 printf "\n#ifdef %s\n\n", compat10 > syscompat10
 187                 printf "\n#ifdef %s\n\n", compat11 > syscompat11
 188
 189                 printf "/*\n * System call names.\n *\n" > sysnames
 190                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
 191                 printf " * $%s$\n", "FreeBSD" > sysnames
 192                 printf " */\n\n" > sysnames
 193                 printf "const char *%s[] = {\n", namesname > sysnames
 194
 195                 printf "/*\n * System call numbers.\n *\n" > syshdr
 196                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
 197                 printf " * $%s$\n", "FreeBSD" > syshdr
 198                 printf " */\n\n" > syshdr
 199
 200                 printf "# FreeBSD system call object files.\n" > sysmk
 201                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
 202                 printf "# $%s$\n", "FreeBSD" > sysmk
 203                 printf "MIASM = " > sysmk
 204
 205                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
 206                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
 207                 printf " * $%s$\n", "FreeBSD" > systrace
 208                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
 209                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
 210                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
 211                 printf "\tswitch (sysnum) {\n" > systrace
 212
 213                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
 214                 printf "\tswitch (sysnum) {\n" > systracetmp
 215
 216                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
 217                 printf "\tswitch (sysnum) {\n" > systraceret
 218         }
 219         NR == 1 {
 220                 next
 221         }
 222         NF == 0 || $1 ~ /^;/ {
 223                 next
 224         }
 225         $1 ~ /^#[       ]*include/ {
 226                 print > sysinc
 227                 next
 228         }
 229         $1 ~ /^#[       ]*if/ {
 230                 print > sysent
 231                 print > sysdcl
 232                 print > sysarg
 233                 print > syscompat
 234                 print > syscompat4
 235                 print > syscompat6
 236                 print > syscompat7
 237                 print > syscompat10
 238                 print > syscompat11
 239                 print > sysnames
 240                 print > systrace
 241                 print > systracetmp
 242                 print > systraceret
 243                 savesyscall = syscall
 244                 next
 245         }
 246         $1 ~ /^#[       ]*else/ {
 247                 print > sysent
 248                 print > sysdcl
 249                 print > sysarg
 250                 print > syscompat
 251                 print > syscompat4
 252                 print > syscompat6
 253                 print > syscompat7
 254                 print > syscompat10
 255                 print > syscompat11
 256                 print > sysnames
 257                 print > systrace
 258                 print > systracetmp
 259                 print > systraceret
 260                 syscall = savesyscall
 261                 next
 262         }
 263         $1 ~ /^#/ {
 264                 print > sysent
 265                 print > sysdcl
 266                 print > sysarg
 267                 print > syscompat
 268                 print > syscompat4
 269                 print > syscompat6
 270                 print > syscompat7
 271                 print > syscompat10
 272                 print > syscompat11
 273                 print > sysnames
 274                 print > systrace
 275                 print > systracetmp
 276                 print > systraceret
 277                 next
 278         }
 279         # Returns true if the type "name" is the first flag in the type field
 280         function type(name, flags, n) {
 281                 n = split($3, flags, /\|/)
 282                 return (n > 0 && flags[1] == name)
 283         }
 284         # Returns true if the flag "name" is set in the type field
 285         function flag(name, flags, i, n) {
 286                 n = split($3, flags, /\|/)
 287                 for (i = 1; i <= n; i++)
 288                         if (flags[i] == name)
 289                                 return 1
 290                 return 0
 291         }
 292         {
 293                 n = split($1, syscall_range, /-/)
 294                 if (n == 1) {
 295                         syscall_range[2] = syscall_range[1]
 296                 } else if (n == 2) {
 297                         if (!type("UNIMPL")) {
 298                                 printf "%s: line %d: range permitted only with UNIMPL\n",
 299                                     infile, NR
 300                                 exit 1
 301                         }
 302                 } else {
 303                         printf "%s: line %d: invalid syscall number or range %s\n",
 304                             infile, NR, $1
 305                         exit 1
 306                 }
 307         }
 308         syscall != syscall_range[1] {
 309                 printf "%s: line %d: syscall number out of sync at %d\n",
 310                     infile, NR, syscall
 311                 printf "line is:\n"
 312                 print
 313                 exit 1
 314         }
 315         function align_sysent_comment(column) {
 316                 printf("\t") > sysent
 317                 column = column + 8 - column % 8
 318                 while (column < 56) {
 319                         printf("\t") > sysent
 320                         column = column + 8
 321                 }
 322         }
 323         function parserr(was, wanted) {
 324                 printf "%s: line %d: unexpected %s (expected %s)\n",
 325                     infile, NR, was, wanted
 326                 exit 1
 327         }
 328         function parseline() {
 329                 f=4                     # toss number, type, audit event
 330                 ret_inc = 0
 331                 argc= 0;
 332                 argssize = "0"
 333                 thr_flag = "SY_THR_STATIC"
 334                 if (flag("NOTSTATIC")) {
 335                         thr_flag = "SY_THR_ABSENT"
 336                 }
 337                 if ($NF != "}") {
 338                         funcalias=$(NF-2)
 339                         argalias=$(NF-1)
 340                         rettype=$NF
 341                         end=NF-3
 342                 } else {
 343                         funcalias=""
 344                         argalias=""
 345                         rettype="int"
 346                         if ($(f+2) == "*") {
 347                                 ret_inc = 1
 348                         }
 349                         end=NF
 350                 }
 351                 if (flag("NODEF")) {
 352                         auditev="AUE_NULL"
 353                         funcname=$(4 + ret_inc)
 354                         argssize = "AS(" $(6 + ret_inc) ")"
 355                         return
 356                 }
 357                 if ($f != "{")
 358                         parserr($f, "{")
 359                 f++
 360                 if ($end != "}")
 361                         parserr($end, "}")
 362                 end--
 363                 if ($end != ";")
 364                         parserr($end, ";")
 365                 end--
 366                 if ($end != ")")
 367                         parserr($end, ")")
 368                 end--
 369
 370                 syscallret=$f
 371                 f++
 372                 while (ret_inc > 0) {
 373                         syscallret=syscallret " " $f
 374                         f++
 375                         ret_inc--
 376                 }
 377
 378                 funcname=$f
 379
 380                 #
 381                 # We now know the func name, so define a flags field for it.
 382                 # Do this before any other processing as we may return early
 383                 # from it.
 384                 #
 385                 for (cap in capenabled) {
 386                         if (funcname == capenabled[cap] ||
 387                             funcname == abi_func_prefix capenabled[cap]) {
 388                                 flags = "SYF_CAPENABLED";
 389                                 break;
 390                         }
 391                 }
 392
 393                 if (funcalias == "")
 394                         funcalias = funcname
 395                 if (argalias == "") {
 396                         argalias = funcname "_args"
 397                         if (flag("COMPAT"))
 398                                 argalias = "o" argalias
 399                         if (flag("COMPAT4"))
 400                                 argalias = "freebsd4_" argalias
 401                         if (flag("COMPAT6"))
 402                                 argalias = "freebsd6_" argalias
 403                         if (flag("COMPAT7"))
 404                                 argalias = "freebsd7_" argalias
 405                         if (flag("COMPAT10"))
 406                                 argalias = "freebsd10_" argalias
 407                         if (flag("COMPAT11"))
 408                                 argalias = "freebsd11_" argalias
 409                 }
 410                 f++
 411
 412                 if ($f != "(")
 413                         parserr($f, ")")
 414                 f++
 415
 416                 if (f == end) {
 417                         if ($f != "void")
 418                                 parserr($f, "argument definition")
 419                         return
 420                 }
 421
 422                 while (f <= end) {
 423                         argc++
 424                         argtype[argc]=""
 425                         oldf=""
 426                         while (f < end && $(f+1) != ",") {
 427                                 if (argtype[argc] != "" && oldf != "*")
 428                                         argtype[argc] = argtype[argc]" ";
 429                                 argtype[argc] = argtype[argc]$f;
 430                                 oldf = $f;
 431                                 f++
 432                         }
 433                         if (argtype[argc] == "")
 434                                 parserr($f, "argument definition")
 435
 436                         # The parser adds space around parens.
 437                         # Remove it from annotations.
 438                         gsub(/ \( /, "(", argtype[argc]);
 439                         gsub(/ \)/, ")", argtype[argc]);
 440
 441                         #remove annotations
 442                         gsub(/_In[^ ]*[_)] /, "", argtype[argc]);
 443                         gsub(/_Out[^ ]*[_)] /, "", argtype[argc]);
 444
 445                         argname[argc]=$f;
 446                         f += 2;                 # skip name, and any comma
 447                 }
 448                 if (argc != 0)
 449                         argssize = "AS(" argalias ")"
 450         }
 451         {       comment = $4
 452                 if (NF < 7)
 453                         for (i = 5; i <= NF; i++)
 454                                 comment = comment " " $i
 455         }
 456
 457         #
 458         # The AUE_ audit event identifier.
 459         #
 460         {
 461                 auditev = $2;
 462         }
 463
 464         #
 465         # The flags, if any.
 466         #
 467         {
 468                 flags = "0";
 469         }
 470
 471         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 472             || type("NOSTD") {
 473                 parseline()
 474                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 475                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 476                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
 477                 if (argc > 0) {
 478                         printf("\t\tswitch(ndx) {\n") > systracetmp
 479                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 480                         for (i = 1; i <= argc; i++) {
 481                                 arg = argtype[i]
 482                                 sub("__restrict$", "", arg)
 483                                 if (index(arg, "*") > 0)
 484                                         printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 485                                 else
 486                                         printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 487                                 if (index(arg, "*") > 0 || arg == "caddr_t")
 488                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 489                                              i - 1, \
 490                                              argname[i], arg) > systrace
 491                                 else if (arg == "union l_semun")
 492                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
 493                                              i - 1, \
 494                                              argname[i], arg) > systrace
 495                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
 496                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 497                                              i - 1, \
 498                                              argname[i], arg) > systrace
 499                                 else
 500                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 501                                              i - 1, \
 502                                              argname[i], arg) > systrace
 503                         }
 504                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 505
 506                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
 507                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
 508                         printf("\t\tbreak;\n") > systraceret
 509                 }
 510                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 511                 printf("\t\tbreak;\n") > systracetmp
 512                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 513                     !flag("NODEF")) {
 514                         printf("struct %s {\n", argalias) > sysarg
 515                         for (i = 1; i <= argc; i++)
 516                                 printf("\tchar %s_l_[PADL_(%s)]; " \
 517                                     "%s %s; char %s_r_[PADR_(%s)];\n",
 518                                     argname[i], argtype[i],
 519                                     argtype[i], argname[i],
 520                                     argname[i], argtype[i]) > sysarg
 521                         printf("};\n") > sysarg
 522                 }
 523                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 524                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 525                             argalias) > sysarg
 526                 if (!flag("NOPROTO") && !flag("NODEF")) {
 527                         if (funcname == "nosys" || funcname == "lkmnosys" ||
 528                             funcname == "sysarch" || funcname ~ /^freebsd/ ||
 529                             funcname ~ /^linux/ || funcname ~ /^cloudabi/) {
 530                                 printf("%s\t%s(struct thread *, struct %s *)",
 531                                     rettype, funcname, argalias) > sysdcl
 532                         } else {
 533                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 534                                     rettype, funcname, argalias) > sysdcl
 535                         }
 536                         printf(";\n") > sysdcl
 537                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 538                             funcalias, auditev) > sysaue
 539                 }
 540                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 541                 column = 8 + 2 + length(argssize) + 15
 542                 if (flag("NOSTD")) {
 543                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
 544                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 545                 } else {
 546                         if (funcname == "nosys" || funcname == "sysarch" ||
 547                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 548                             funcname ~ /^linux/ || funcname ~ /^cloudabi/) {
 549                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 550                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 551                         } else {
 552                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 553                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 554                         }
 555                 }
 556                 align_sysent_comment(column)
 557                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 558                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 559                     funcalias, syscall, funcalias) > sysnames
 560                 if (!flag("NODEF")) {
 561                         printf("#define\t%s%s\t%d\n", syscallprefix,
 562                             funcalias, syscall) > syshdr
 563                         printf(" \\\n\t%s.o", funcalias) > sysmk
 564                 }
 565                 syscall++
 566                 next
 567         }
 568         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 569             type("COMPAT7") || type("COMPAT10") || type("COMPAT11") {
 570                 if (flag("COMPAT")) {
 571                         ncompat++
 572                         out = syscompat
 573                         outdcl = syscompatdcl
 574                         wrap = "compat"
 575                         prefix = "o"
 576                         descr = "old"
 577                 } else if (flag("COMPAT4")) {
 578                         ncompat4++
 579                         out = syscompat4
 580                         outdcl = syscompat4dcl
 581                         wrap = "compat4"
 582                         prefix = "freebsd4_"
 583                         descr = "freebsd4"
 584                 } else if (flag("COMPAT6")) {
 585                         ncompat6++
 586                         out = syscompat6
 587                         outdcl = syscompat6dcl
 588                         wrap = "compat6"
 589                         prefix = "freebsd6_"
 590                         descr = "freebsd6"
 591                 } else if (flag("COMPAT7")) {
 592                         ncompat7++
 593                         out = syscompat7
 594                         outdcl = syscompat7dcl
 595                         wrap = "compat7"
 596                         prefix = "freebsd7_"
 597                         descr = "freebsd7"
 598                 } else if (flag("COMPAT10")) {
 599                         ncompat10++
 600                         out = syscompat10
 601                         outdcl = syscompat10dcl
 602                         wrap = "compat10"
 603                         prefix = "freebsd10_"
 604                         descr = "freebsd10"
 605                 } else if (flag("COMPAT11")) {
 606                         ncompat11++
 607                         out = syscompat11
 608                         outdcl = syscompat11dcl
 609                         wrap = "compat11"
 610                         prefix = "freebsd11_"
 611                         descr = "freebsd11"
 612                 }
 613                 parseline()
 614                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 615                     !flag("NODEF")) {
 616                         printf("struct %s {\n", argalias) > out
 617                         for (i = 1; i <= argc; i++)
 618                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 619                                     "char %s_r_[PADR_(%s)];\n",
 620                                     argname[i], argtype[i],
 621                                     argtype[i], argname[i],
 622                                     argname[i], argtype[i]) > out
 623                         printf("};\n") > out
 624                 }
 625                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 626                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 627                             argalias) > sysarg
 628                 if (!flag("NOPROTO") && !flag("NODEF")) {
 629                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 630                             rettype, prefix, funcname, argalias) > outdcl
 631                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 632                             prefix, funcname, auditev) > sysaue
 633                 }
 634                 if (flag("NOSTD")) {
 635                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 636                             "0", "lkmressys", "AUE_NULL") > sysent
 637                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 638                             length("lkmressys") + length("AUE_NULL") + 3)
 639                 } else {
 640                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 641                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 642                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 643                             length(funcname) + length(auditev) + \
 644                             length(flags) + 4)
 645                 }
 646                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 647                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 648                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 649                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
 650                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
 651                         printf("\t\t\t\t/* %d is %s %s */\n",
 652                             syscall, descr, funcalias) > syshdr
 653                 } else if (!flag("NODEF")) {
 654                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 655                             prefix, funcalias, syscall) > syshdr
 656                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 657                 }
 658                 syscall++
 659                 next
 660         }
 661         type("OBSOL") {
 662                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 663                 align_sysent_comment(34)
 664                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 665                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 666                     $4, syscall, comment) > sysnames
 667                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 668                     syscall, comment) > syshdr
 669                 syscall++
 670                 next
 671         }
 672         type("UNIMPL") {
 673                 while (syscall <= syscall_range[2]) {
 674                         printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 675                             syscall, comment) > sysent
 676                         printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 677                             syscall, syscall, comment) > sysnames
 678                         syscall++
 679                 }
 680                 next
 681         }
 682         {
 683                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 684                 exit 1
 685         }
 686         END {
 687                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 688
 689                 if (ncompat != 0) {
 690                         printf "\n#ifdef %s\n", compat > sysinc
 691                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 692                         printf "#else\n" > sysinc
 693                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 694                         printf "#endif\n" > sysinc
 695                 }
 696
 697                 if (ncompat4 != 0) {
 698                         printf "\n#ifdef %s\n", compat4 > sysinc
 699                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 700                         printf "#else\n" > sysinc
 701                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 702                         printf "#endif\n" > sysinc
 703                 }
 704
 705                 if (ncompat6 != 0) {
 706                         printf "\n#ifdef %s\n", compat6 > sysinc
 707                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 708                         printf "#else\n" > sysinc
 709                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 710                         printf "#endif\n" > sysinc
 711                 }
 712
 713                 if (ncompat7 != 0) {
 714                         printf "\n#ifdef %s\n", compat7 > sysinc
 715                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 716                         printf "#else\n" > sysinc
 717                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 718                         printf "#endif\n" > sysinc
 719                 }
 720                 if (ncompat10 != 0) {
 721                         printf "\n#ifdef %s\n", compat10 > sysinc
 722                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
 723                         printf "#else\n" > sysinc
 724                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 725                         printf "#endif\n" > sysinc
 726                 }
 727                 if (ncompat11 != 0) {
 728                         printf "\n#ifdef %s\n", compat11 > sysinc
 729                         printf "#define compat11(n, name) n, (sy_call_t *)__CONCAT(freebsd11_,name)\n" > sysinc
 730                         printf "#else\n" > sysinc
 731                         printf "#define compat11(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 732                         printf "#endif\n" > sysinc
 733                 }
 734
 735                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 736                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 737                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 738                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 739                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
 740                 printf("\n#endif /* %s */\n\n", compat11) > syscompat11dcl
 741
 742                 printf("\n#undef PAD_\n") > sysprotoend
 743                 printf("#undef PADL_\n") > sysprotoend
 744                 printf("#undef PADR_\n") > sysprotoend
 745                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 746
 747                 printf("\n") > sysmk
 748                 printf("};\n") > sysent
 749                 printf("};\n") > sysnames
 750                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 751                     > syshdr
 752                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 753                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 754                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
 755         } '
 756
 757 cat $sysinc $sysent >> $syssw
 758 cat $sysarg $sysdcl \
 759         $syscompat $syscompatdcl \
 760         $syscompat4 $syscompat4dcl \
 761         $syscompat6 $syscompat6dcl \
 762         $syscompat7 $syscompat7dcl \
 763         $syscompat10 $syscompat10dcl \
 764         $syscompat11 $syscompat11dcl \
 765         $sysaue $sysprotoend > $sysproto
 766 cat $systracetmp >> $systrace
 767 cat $systraceret >> $systrace
 768