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