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, $1
 308                         exit 1
 309                 }
 310         }
 311         syscall != syscall_range[1] {
 312                 printf "%s: line %d: syscall number out of sync at %d\n",
 313                     infile, NR, syscall
 314                 printf "line is:\n"
 315                 print
 316                 exit 1
 317         }
 318         function align_sysent_comment(column) {
 319                 printf("\t") > sysent
 320                 column = column + 8 - column % 8
 321                 while (column < 56) {
 322                         printf("\t") > sysent
 323                         column = column + 8
 324                 }
 325         }
 326         function parserr(was, wanted) {
 327                 printf "%s: line %d: unexpected %s (expected %s)\n",
 328                     infile, NR, was, wanted
 329                 exit 1
 330         }
 331         function parseline() {
 332                 f=4                     # toss number, type, audit event
 333                 ret_inc = 0
 334                 argc= 0;
 335                 argssize = "0"
 336                 thr_flag = "SY_THR_STATIC"
 337                 if (flag("NOTSTATIC")) {
 338                         thr_flag = "SY_THR_ABSENT"
 339                 }
 340                 if ($NF != "}") {
 341                         funcalias=$(NF-2)
 342                         argalias=$(NF-1)
 343                         rettype=$NF
 344                         end=NF-3
 345                 } else {
 346                         funcalias=""
 347                         argalias=""
 348                         rettype="int"
 349                         if ($(f+2) == "*") {
 350                                 ret_inc = 1
 351                         }
 352                         end=NF
 353                 }
 354                 if (flag("NODEF")) {
 355                         auditev="AUE_NULL"
 356                         funcname=$(4 + ret_inc)
 357                         argssize = "AS(" $(6 + ret_inc) ")"
 358                         return
 359                 }
 360                 if ($f != "{")
 361                         parserr($f, "{")
 362                 f++
 363                 if ($end != "}")
 364                         parserr($end, "}")
 365                 end--
 366                 if ($end != ";")
 367                         parserr($end, ";")
 368                 end--
 369                 if ($end != ")")
 370                         parserr($end, ")")
 371                 end--
 372
 373                 syscallret=$f
 374                 f++
 375                 while (ret_inc > 0) {
 376                         syscallret=syscallret " " $f
 377                         f++
 378                         ret_inc--
 379                 }
 380
 381                 funcname=$f
 382
 383                 #
 384                 # We now know the func name, so define a flags field for it.
 385                 # Do this before any other processing as we may return early
 386                 # from it.
 387                 #
 388                 for (cap in capenabled) {
 389                         if (funcname == capenabled[cap] ||
 390                             funcname == abi_func_prefix capenabled[cap]) {
 391                                 flags = "SYF_CAPENABLED";
 392                                 break;
 393                         }
 394                 }
 395
 396                 if (funcalias == "")
 397                         funcalias = funcname
 398                 if (argalias == "") {
 399                         argalias = funcname "_args"
 400                         if (flag("COMPAT"))
 401                                 argalias = "o" argalias
 402                         if (flag("COMPAT4"))
 403                                 argalias = "freebsd4_" argalias
 404                         if (flag("COMPAT6"))
 405                                 argalias = "freebsd6_" argalias
 406                         if (flag("COMPAT7"))
 407                                 argalias = "freebsd7_" argalias
 408                         if (flag("COMPAT10"))
 409                                 argalias = "freebsd10_" argalias
 410                         if (flag("COMPAT11"))
 411                                 argalias = "freebsd11_" argalias
 412                 }
 413                 f++
 414
 415                 if ($f != "(")
 416                         parserr($f, ")")
 417                 f++
 418
 419                 if (f == end) {
 420                         if ($f != "void")
 421                                 parserr($f, "argument definition")
 422                         return
 423                 }
 424
 425                 while (f <= end) {
 426                         argc++
 427                         argtype[argc]=""
 428                         oldf=""
 429                         while (f < end && $(f+1) != ",") {
 430                                 if (argtype[argc] != "" && oldf != "*")
 431                                         argtype[argc] = argtype[argc]" ";
 432                                 argtype[argc] = argtype[argc]$f;
 433                                 oldf = $f;
 434                                 f++
 435                         }
 436                         if (argtype[argc] == "")
 437                                 parserr($f, "argument definition")
 438
 439                         # The parser adds space around parens.
 440                         # Remove it from annotations.
 441                         gsub(/ \( /, "(", argtype[argc]);
 442                         gsub(/ \)/, ")", argtype[argc]);
 443
 444                         #remove annotations
 445                         gsub(/_In[^ ]*[_)] /, "", argtype[argc]);
 446                         gsub(/_Out[^ ]*[_)] /, "", argtype[argc]);
 447
 448                         argname[argc]=$f;
 449                         f += 2;                 # skip name, and any comma
 450                 }
 451                 if (argc != 0)
 452                         argssize = "AS(" argalias ")"
 453         }
 454         {       comment = $4
 455                 if (NF < 7)
 456                         for (i = 5; i <= NF; i++)
 457                                 comment = comment " " $i
 458         }
 459
 460         #
 461         # The AUE_ audit event identifier.
 462         #
 463         {
 464                 auditev = $2;
 465         }
 466
 467         #
 468         # The flags, if any.
 469         #
 470         {
 471                 flags = "0";
 472         }
 473
 474         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 475             || type("NOSTD") {
 476                 parseline()
 477                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 478                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 479                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
 480                 if (argc > 0) {
 481                         printf("\t\tswitch(ndx) {\n") > systracetmp
 482                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 483                         for (i = 1; i <= argc; i++) {
 484                                 arg = argtype[i]
 485                                 sub("__restrict$", "", arg)
 486                                 if (index(arg, "*") > 0)
 487                                         printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 488                                 else
 489                                         printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 490                                 if (index(arg, "*") > 0 || arg == "caddr_t")
 491                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 492                                              i - 1, \
 493                                              argname[i], arg) > systrace
 494                                 else if (arg == "union l_semun")
 495                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
 496                                              i - 1, \
 497                                              argname[i], arg) > systrace
 498                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
 499                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 500                                              i - 1, \
 501                                              argname[i], arg) > systrace
 502                                 else
 503                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 504                                              i - 1, \
 505                                              argname[i], arg) > systrace
 506                         }
 507                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 508
 509                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
 510                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
 511                         printf("\t\tbreak;\n") > systraceret
 512                 }
 513                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 514                 printf("\t\tbreak;\n") > systracetmp
 515                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 516                     !flag("NODEF")) {
 517                         printf("struct %s {\n", argalias) > sysarg
 518                         for (i = 1; i <= argc; i++)
 519                                 printf("\tchar %s_l_[PADL_(%s)]; " \
 520                                     "%s %s; char %s_r_[PADR_(%s)];\n",
 521                                     argname[i], argtype[i],
 522                                     argtype[i], argname[i],
 523                                     argname[i], argtype[i]) > sysarg
 524                         printf("};\n") > sysarg
 525                 }
 526                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 527                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 528                             argalias) > sysarg
 529                 if (!flag("NOPROTO") && !flag("NODEF")) {
 530                         if (funcname == "nosys" || funcname == "lkmnosys" ||
 531                             funcname == "sysarch" || funcname ~ /^freebsd/ ||
 532                             funcname ~ /^linux/ || funcname ~ /^cloudabi/) {
 533                                 printf("%s\t%s(struct thread *, struct %s *)",
 534                                     rettype, funcname, argalias) > sysdcl
 535                         } else {
 536                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 537                                     rettype, funcname, argalias) > sysdcl
 538                         }
 539                         printf(";\n") > sysdcl
 540                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 541                             funcalias, auditev) > sysaue
 542                 }
 543                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 544                 column = 8 + 2 + length(argssize) + 15
 545                 if (flag("NOSTD")) {
 546                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
 547                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 548                 } else {
 549                         if (funcname == "nosys" || funcname == "sysarch" ||
 550                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 551                             funcname ~ /^linux/ || funcname ~ /^cloudabi/) {
 552                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 553                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 554                         } else {
 555                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 556                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 557                         }
 558                 }
 559                 align_sysent_comment(column)
 560                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 561                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 562                     funcalias, syscall, funcalias) > sysnames
 563                 if (!flag("NODEF")) {
 564                         printf("#define\t%s%s\t%d\n", syscallprefix,
 565                             funcalias, syscall) > syshdr
 566                         printf(" \\\n\t%s.o", funcalias) > sysmk
 567                 }
 568                 syscall++
 569                 next
 570         }
 571         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 572             type("COMPAT7") || type("COMPAT10") || type("COMPAT11") {
 573                 if (flag("COMPAT")) {
 574                         ncompat++
 575                         out = syscompat
 576                         outdcl = syscompatdcl
 577                         wrap = "compat"
 578                         prefix = "o"
 579                         descr = "old"
 580                 } else if (flag("COMPAT4")) {
 581                         ncompat4++
 582                         out = syscompat4
 583                         outdcl = syscompat4dcl
 584                         wrap = "compat4"
 585                         prefix = "freebsd4_"
 586                         descr = "freebsd4"
 587                 } else if (flag("COMPAT6")) {
 588                         ncompat6++
 589                         out = syscompat6
 590                         outdcl = syscompat6dcl
 591                         wrap = "compat6"
 592                         prefix = "freebsd6_"
 593                         descr = "freebsd6"
 594                 } else if (flag("COMPAT7")) {
 595                         ncompat7++
 596                         out = syscompat7
 597                         outdcl = syscompat7dcl
 598                         wrap = "compat7"
 599                         prefix = "freebsd7_"
 600                         descr = "freebsd7"
 601                 } else if (flag("COMPAT10")) {
 602                         ncompat10++
 603                         out = syscompat10
 604                         outdcl = syscompat10dcl
 605                         wrap = "compat10"
 606                         prefix = "freebsd10_"
 607                         descr = "freebsd10"
 608                 } else if (flag("COMPAT11")) {
 609                         ncompat11++
 610                         out = syscompat11
 611                         outdcl = syscompat11dcl
 612                         wrap = "compat11"
 613                         prefix = "freebsd11_"
 614                         descr = "freebsd11"
 615                 }
 616                 parseline()
 617                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 618                     !flag("NODEF")) {
 619                         printf("struct %s {\n", argalias) > out
 620                         for (i = 1; i <= argc; i++)
 621                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 622                                     "char %s_r_[PADR_(%s)];\n",
 623                                     argname[i], argtype[i],
 624                                     argtype[i], argname[i],
 625                                     argname[i], argtype[i]) > out
 626                         printf("};\n") > out
 627                 }
 628                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 629                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 630                             argalias) > sysarg
 631                 if (!flag("NOPROTO") && !flag("NODEF")) {
 632                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 633                             rettype, prefix, funcname, argalias) > outdcl
 634                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 635                             prefix, funcname, auditev) > sysaue
 636                 }
 637                 if (flag("NOSTD")) {
 638                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 639                             "0", "lkmressys", "AUE_NULL") > sysent
 640                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 641                             length("lkmressys") + length("AUE_NULL") + 3)
 642                 } else {
 643                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 644                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 645                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 646                             length(funcname) + length(auditev) + \
 647                             length(flags) + 4)
 648                 }
 649                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 650                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 651                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 652                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
 653                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
 654                         printf("\t\t\t\t/* %d is %s %s */\n",
 655                             syscall, descr, funcalias) > syshdr
 656                 } else if (!flag("NODEF")) {
 657                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 658                             prefix, funcalias, syscall) > syshdr
 659                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 660                 }
 661                 syscall++
 662                 next
 663         }
 664         type("OBSOL") {
 665                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 666                 align_sysent_comment(34)
 667                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 668                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 669                     $4, syscall, comment) > sysnames
 670                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 671                     syscall, comment) > syshdr
 672                 syscall++
 673                 next
 674         }
 675         type("UNIMPL") {
 676                 while (syscall <= syscall_range[2]) {
 677                         printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 678                             syscall, comment) > sysent
 679                         printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 680                             syscall, syscall, comment) > sysnames
 681                         syscall++
 682                 }
 683                 next
 684         }
 685         {
 686                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 687                 exit 1
 688         }
 689         END {
 690                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 691
 692                 if (ncompat != 0) {
 693                         printf "\n#ifdef %s\n", compat > sysinc
 694                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 695                         printf "#else\n" > sysinc
 696                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 697                         printf "#endif\n" > sysinc
 698                 }
 699
 700                 if (ncompat4 != 0) {
 701                         printf "\n#ifdef %s\n", compat4 > sysinc
 702                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 703                         printf "#else\n" > sysinc
 704                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 705                         printf "#endif\n" > sysinc
 706                 }
 707
 708                 if (ncompat6 != 0) {
 709                         printf "\n#ifdef %s\n", compat6 > sysinc
 710                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 711                         printf "#else\n" > sysinc
 712                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 713                         printf "#endif\n" > sysinc
 714                 }
 715
 716                 if (ncompat7 != 0) {
 717                         printf "\n#ifdef %s\n", compat7 > sysinc
 718                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 719                         printf "#else\n" > sysinc
 720                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 721                         printf "#endif\n" > sysinc
 722                 }
 723                 if (ncompat10 != 0) {
 724                         printf "\n#ifdef %s\n", compat10 > sysinc
 725                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
 726                         printf "#else\n" > sysinc
 727                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 728                         printf "#endif\n" > sysinc
 729                 }
 730                 if (ncompat11 != 0) {
 731                         printf "\n#ifdef %s\n", compat11 > sysinc
 732                         printf "#define compat11(n, name) n, (sy_call_t *)__CONCAT(freebsd11_,name)\n" > sysinc
 733                         printf "#else\n" > sysinc
 734                         printf "#define compat11(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 735                         printf "#endif\n" > sysinc
 736                 }
 737
 738                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 739                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 740                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 741                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 742                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
 743                 printf("\n#endif /* %s */\n\n", compat11) > syscompat11dcl
 744
 745                 printf("\n#undef PAD_\n") > sysprotoend
 746                 printf("#undef PADL_\n") > sysprotoend
 747                 printf("#undef PADR_\n") > sysprotoend
 748                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 749
 750                 printf("\n") > sysmk
 751                 printf("};\n") > sysent
 752                 printf("};\n") > sysnames
 753                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 754                     > syshdr
 755                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 756                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 757                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
 758         } '
 759
 760 cat $sysinc $sysent >> $syssw
 761 cat $sysarg $sysdcl \
 762         $syscompat $syscompatdcl \
 763         $syscompat4 $syscompat4dcl \
 764         $syscompat6 $syscompat6dcl \
 765         $syscompat7 $syscompat7dcl \
 766         $syscompat10 $syscompat10dcl \
 767         $syscompat11 $syscompat11dcl \
 768         $sysaue $sysprotoend > $sysproto
 769 cat $systracetmp >> $systrace
 770 cat $systraceret >> $systrace
 771