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 compat12=COMPAT_FREEBSD12
  15
  16 # output files:
  17 sysnames="syscalls.c"
  18 sysproto="../sys/sysproto.h"
  19 sysproto_h=_SYS_SYSPROTO_H_
  20 syshdr="../sys/syscall.h"
  21 sysmk="../sys/syscall.mk"
  22 syssw="init_sysent.c"
  23 syscallprefix="SYS_"
  24 switchname="sysent"
  25 namesname="syscallnames"
  26 systrace="systrace_args.c"
  27
  28 # tmp files:
  29 sysaue="sysent.aue.$$"
  30 sysdcl="sysent.dcl.$$"
  31 syscompat="sysent.compat.$$"
  32 syscompatdcl="sysent.compatdcl.$$"
  33 syscompat4="sysent.compat4.$$"
  34 syscompat4dcl="sysent.compat4dcl.$$"
  35 syscompat6="sysent.compat6.$$"
  36 syscompat6dcl="sysent.compat6dcl.$$"
  37 syscompat7="sysent.compat7.$$"
  38 syscompat7dcl="sysent.compat7dcl.$$"
  39 syscompat10="sysent.compat10.$$"
  40 syscompat10dcl="sysent.compat10dcl.$$"
  41 syscompat11="sysent.compat11.$$"
  42 syscompat11dcl="sysent.compat11dcl.$$"
  43 syscompat12="sysent.compat12.$$"
  44 syscompat12dcl="sysent.compat12dcl.$$"
  45 sysent="sysent.switch.$$"
  46 sysinc="sysinc.switch.$$"
  47 sysarg="sysarg.switch.$$"
  48 sysprotoend="sysprotoend.$$"
  49 systracetmp="systrace.$$"
  50 systraceret="systraceret.$$"
  51 capabilities_conf="capabilities.conf"
  52
  53 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $syscompat12 $syscompat12dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
  54
  55 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $syscompat12 $syscompat12dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
  56
  57 case $# in
  58     0)  echo "usage: $0 input-file <config-file>" 1>&2
  59         exit 1
  60         ;;
  61 esac
  62
  63 if [ -n "$2" ]; then
  64         . "$2"
  65 fi
  66
  67 if [ -n "$capenabled" ]; then
  68         # do nothing
  69 elif [ -r $capabilities_conf ]; then
  70         capenabled=`egrep -v '^#|^$' $capabilities_conf`
  71         capenabled=`echo $capenabled | sed 's/ /,/g'`
  72 else
  73         capenabled=""
  74 fi
  75
  76 sed -e '
  77         # FreeBSD ID, includes, comments, and blank lines
  78         /.*\$FreeBSD/b done_joining
  79         /^[#;]/b done_joining
  80         /^$/b done_joining
  81
  82         # Join lines ending in backslash
  83 :joining
  84         /\\$/{a\
  85
  86         N
  87         s/\\\n//
  88         b joining
  89         }
  90
  91         # OBSOL, etc lines without function signatures
  92         /^[0-9][^{]*$/b done_joining
  93
  94         # Join incomplete signatures.  The { must appear on the first line
  95         # and the } must appear on the last line (modulo lines joined by
  96         # backslashes).
  97         /^[^}]*$/{a\
  98
  99         N
 100         s/\n//
 101         b joining
 102         }
 103 :done_joining
 104 2,${
 105         /^#/!s/\([{}()*,]\)/ \1 /g
 106 }
 107 ' < $1 | awk "
 108         BEGIN {
 109                 sysaue = \"$sysaue\"
 110                 sysdcl = \"$sysdcl\"
 111                 sysproto = \"$sysproto\"
 112                 sysprotoend = \"$sysprotoend\"
 113                 sysproto_h = \"$sysproto_h\"
 114                 syscompat = \"$syscompat\"
 115                 syscompatdcl = \"$syscompatdcl\"
 116                 syscompat4 = \"$syscompat4\"
 117                 syscompat4dcl = \"$syscompat4dcl\"
 118                 syscompat6 = \"$syscompat6\"
 119                 syscompat6dcl = \"$syscompat6dcl\"
 120                 syscompat7 = \"$syscompat7\"
 121                 syscompat7dcl = \"$syscompat7dcl\"
 122                 syscompat10 = \"$syscompat10\"
 123                 syscompat10dcl = \"$syscompat10dcl\"
 124                 syscompat11 = \"$syscompat11\"
 125                 syscompat11dcl = \"$syscompat11dcl\"
 126                 syscompat12 = \"$syscompat12\"
 127                 syscompat12dcl = \"$syscompat12dcl\"
 128                 sysent = \"$sysent\"
 129                 syssw = \"$syssw\"
 130                 sysinc = \"$sysinc\"
 131                 sysarg = \"$sysarg\"
 132                 sysnames = \"$sysnames\"
 133                 syshdr = \"$syshdr\"
 134                 sysmk = \"$sysmk\"
 135                 systrace = \"$systrace\"
 136                 systracetmp = \"$systracetmp\"
 137                 systraceret = \"$systraceret\"
 138                 compat = \"$compat\"
 139                 compat4 = \"$compat4\"
 140                 compat6 = \"$compat6\"
 141                 compat7 = \"$compat7\"
 142                 compat10 = \"$compat10\"
 143                 compat11 = \"$compat11\"
 144                 compat12 = \"$compat12\"
 145                 syscallprefix = \"$syscallprefix\"
 146                 switchname = \"$switchname\"
 147                 namesname = \"$namesname\"
 148                 infile = \"$1\"
 149                 abi_func_prefix = \"$abi_func_prefix\"
 150                 capenabled_string = \"$capenabled\"
 151                 "'
 152
 153                 # Avoid a literal generated file tag here.
 154                 generated = "@" "generated";
 155
 156                 split(capenabled_string, capenabled, ",");
 157
 158                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 159                 printf "struct sysent %s[] = {\n",switchname > sysent
 160
 161                 printf "/*\n * System call switch table.\n *\n" > syssw
 162                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > syssw
 163                 printf " * $%s$\n", "FreeBSD" > syssw
 164                 printf " */\n\n" > syssw
 165
 166                 printf "/*\n * System call prototypes.\n *\n" > sysarg
 167                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > sysarg
 168                 printf " * $%s$\n", "FreeBSD" > sysarg
 169                 printf " */\n\n" > sysarg
 170                 printf "#ifndef %s\n", sysproto_h > sysarg
 171                 printf "#define\t%s\n\n", sysproto_h > sysarg
 172                 printf "#include <sys/signal.h>\n" > sysarg
 173                 printf "#include <sys/acl.h>\n" > sysarg
 174                 printf "#include <sys/cpuset.h>\n" > sysarg
 175                 printf "#include <sys/domainset.h>\n" > sysarg
 176                 printf "#include <sys/_ffcounter.h>\n" > sysarg
 177                 printf "#include <sys/_semaphore.h>\n" > sysarg
 178                 printf "#include <sys/ucontext.h>\n" > sysarg
 179                 printf "#include <sys/wait.h>\n\n" > sysarg
 180                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
 181                 printf "struct proc;\n\n" > sysarg
 182                 printf "struct thread;\n\n" > sysarg
 183                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 184                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 185                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 186                 printf "#define\tPADL_(t)\t0\n" > sysarg
 187                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 188                 printf "#else\n" > sysarg
 189                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 190                 printf "#define\tPADR_(t)\t0\n" > sysarg
 191                 printf "#endif\n\n" > sysarg
 192
 193                 printf "\n#ifdef %s\n\n", compat > syscompat
 194                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
 195                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
 196                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
 197                 printf "\n#ifdef %s\n\n", compat10 > syscompat10
 198                 printf "\n#ifdef %s\n\n", compat11 > syscompat11
 199                 printf "\n#ifdef %s\n\n", compat12 > syscompat12
 200
 201                 printf "/*\n * System call names.\n *\n" > sysnames
 202                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > sysnames
 203                 printf " * $%s$\n", "FreeBSD" > sysnames
 204                 printf " */\n\n" > sysnames
 205                 printf "const char *%s[] = {\n", namesname > sysnames
 206
 207                 printf "/*\n * System call numbers.\n *\n" > syshdr
 208                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > syshdr
 209                 printf " * $%s$\n", "FreeBSD" > syshdr
 210                 printf " */\n\n" > syshdr
 211
 212                 printf "# FreeBSD system call object files.\n" > sysmk
 213                 printf "# DO NOT EDIT-- this file is automatically " generated ".\n" > sysmk
 214                 printf "# $%s$\n", "FreeBSD" > sysmk
 215                 printf "MIASM = " > sysmk
 216
 217                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
 218                 printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > systrace
 219                 printf " * $%s$\n", "FreeBSD" > systrace
 220                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
 221                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
 222                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
 223                 printf "\tswitch (sysnum) {\n" > systrace
 224
 225                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
 226                 printf "\tswitch (sysnum) {\n" > systracetmp
 227
 228                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
 229                 printf "\tswitch (sysnum) {\n" > systraceret
 230         }
 231         NR == 1 {
 232                 next
 233         }
 234         NF == 0 || $1 ~ /^;/ {
 235                 next
 236         }
 237         $1 ~ /^#[       ]*include/ {
 238                 print > sysinc
 239                 next
 240         }
 241         $1 ~ /^#[       ]*if/ {
 242                 print > sysent
 243                 print > sysdcl
 244                 print > sysarg
 245                 print > syscompat
 246                 print > syscompat4
 247                 print > syscompat6
 248                 print > syscompat7
 249                 print > syscompat10
 250                 print > syscompat11
 251                 print > syscompat12
 252                 print > sysnames
 253                 print > systrace
 254                 print > systracetmp
 255                 print > systraceret
 256                 savesyscall = syscall
 257                 next
 258         }
 259         $1 ~ /^#[       ]*else/ {
 260                 print > sysent
 261                 print > sysdcl
 262                 print > sysarg
 263                 print > syscompat
 264                 print > syscompat4
 265                 print > syscompat6
 266                 print > syscompat7
 267                 print > syscompat10
 268                 print > syscompat11
 269                 print > syscompat12
 270                 print > sysnames
 271                 print > systrace
 272                 print > systracetmp
 273                 print > systraceret
 274                 syscall = savesyscall
 275                 next
 276         }
 277         $1 ~ /^#/ {
 278                 print > sysent
 279                 print > sysdcl
 280                 print > sysarg
 281                 print > syscompat
 282                 print > syscompat4
 283                 print > syscompat6
 284                 print > syscompat7
 285                 print > syscompat10
 286                 print > syscompat11
 287                 print > syscompat12
 288                 print > sysnames
 289                 print > systrace
 290                 print > systracetmp
 291                 print > systraceret
 292                 next
 293         }
 294         # Returns true if the type "name" is the first flag in the type field
 295         function type(name, flags, n) {
 296                 n = split($3, flags, /\|/)
 297                 return (n > 0 && flags[1] == name)
 298         }
 299         # Returns true if the flag "name" is set in the type field
 300         function flag(name, flags, i, n) {
 301                 n = split($3, flags, /\|/)
 302                 for (i = 1; i <= n; i++)
 303                         if (flags[i] == name)
 304                                 return 1
 305                 return 0
 306         }
 307         {
 308                 n = split($1, syscall_range, /-/)
 309                 if (n == 1) {
 310                         syscall_range[2] = syscall_range[1]
 311                 } else if (n == 2) {
 312                         if (!type("UNIMPL")) {
 313                                 printf "%s: line %d: range permitted only with UNIMPL\n",
 314                                     infile, NR
 315                                 exit 1
 316                         }
 317                 } else {
 318                         printf "%s: line %d: invalid syscall number or range %s\n",
 319                             infile, NR, $1
 320                         exit 1
 321                 }
 322         }
 323         syscall != syscall_range[1] {
 324                 printf "%s: line %d: syscall number out of sync at %d\n",
 325                     infile, NR, syscall
 326                 printf "line is:\n"
 327                 print
 328                 exit 1
 329         }
 330         function align_sysent_comment(column) {
 331                 printf("\t") > sysent
 332                 column = column + 8 - column % 8
 333                 while (column < 56) {
 334                         printf("\t") > sysent
 335                         column = column + 8
 336                 }
 337         }
 338         function parserr(was, wanted) {
 339                 printf "%s: line %d: unexpected %s (expected %s)\n",
 340                     infile, NR, was, wanted
 341                 exit 1
 342         }
 343         function parseline() {
 344                 f=4                     # toss number, type, audit event
 345                 ret_inc = 0
 346                 argc= 0;
 347                 argssize = "0"
 348                 thr_flag = "SY_THR_STATIC"
 349                 if (flag("NOTSTATIC")) {
 350                         thr_flag = "SY_THR_ABSENT"
 351                 }
 352                 if ($NF != "}") {
 353                         funcalias=$(NF-2)
 354                         argalias=$(NF-1)
 355                         rettype=$NF
 356                         end=NF-3
 357                 } else {
 358                         funcalias=""
 359                         argalias=""
 360                         rettype="int"
 361                         if ($(f+2) == "*") {
 362                                 ret_inc = 1
 363                         }
 364                         end=NF
 365                 }
 366                 if (flag("NODEF")) {
 367                         auditev="AUE_NULL"
 368                         funcname=$(4 + ret_inc)
 369                         argssize = "AS(" $(6 + ret_inc) ")"
 370                         return
 371                 }
 372                 if ($f != "{")
 373                         parserr($f, "{")
 374                 f++
 375                 if ($end != "}")
 376                         parserr($end, "}")
 377                 end--
 378                 if ($end != ";")
 379                         parserr($end, ";")
 380                 end--
 381                 if ($end != ")")
 382                         parserr($end, ")")
 383                 end--
 384
 385                 syscallret=$f
 386                 f++
 387                 while (ret_inc > 0) {
 388                         syscallret=syscallret " " $f
 389                         f++
 390                         ret_inc--
 391                 }
 392
 393                 funcname=$f
 394
 395                 #
 396                 # We now know the func name, so define a flags field for it.
 397                 # Do this before any other processing as we may return early
 398                 # from it.
 399                 #
 400                 for (cap in capenabled) {
 401                         if (funcname == capenabled[cap] ||
 402                             funcname == abi_func_prefix capenabled[cap]) {
 403                                 flags = "SYF_CAPENABLED";
 404                                 break;
 405                         }
 406                 }
 407
 408                 if (funcalias == "")
 409                         funcalias = funcname
 410                 if (argalias == "") {
 411                         argalias = funcname "_args"
 412                         if (flag("COMPAT"))
 413                                 argalias = "o" argalias
 414                         if (flag("COMPAT4"))
 415                                 argalias = "freebsd4_" argalias
 416                         if (flag("COMPAT6"))
 417                                 argalias = "freebsd6_" argalias
 418                         if (flag("COMPAT7"))
 419                                 argalias = "freebsd7_" argalias
 420                         if (flag("COMPAT10"))
 421                                 argalias = "freebsd10_" argalias
 422                         if (flag("COMPAT11"))
 423                                 argalias = "freebsd11_" argalias
 424                         if (flag("COMPAT12"))
 425                                 argalias = "freebsd12_" argalias
 426                 }
 427                 f++
 428
 429                 if ($f != "(")
 430                         parserr($f, ")")
 431                 f++
 432
 433                 if (f == end) {
 434                         if ($f != "void")
 435                                 parserr($f, "argument definition")
 436                         return
 437                 }
 438
 439                 while (f <= end) {
 440                         argc++
 441                         argtype[argc]=""
 442                         oldf=""
 443                         while (f < end && $(f+1) != ",") {
 444                                 if (argtype[argc] != "" && oldf != "*")
 445                                         argtype[argc] = argtype[argc]" ";
 446                                 argtype[argc] = argtype[argc]$f;
 447                                 oldf = $f;
 448                                 f++
 449                         }
 450                         if (argtype[argc] == "")
 451                                 parserr($f, "argument definition")
 452
 453                         # The parser adds space around parens.
 454                         # Remove it from annotations.
 455                         gsub(/ \( /, "(", argtype[argc]);
 456                         gsub(/ \)/, ")", argtype[argc]);
 457
 458                         #remove annotations
 459                         gsub(/_In[^ ]*[_)] /, "", argtype[argc]);
 460                         gsub(/_Out[^ ]*[_)] /, "", argtype[argc]);
 461
 462                         argname[argc]=$f;
 463                         f += 2;                 # skip name, and any comma
 464                 }
 465                 if (argc != 0)
 466                         argssize = "AS(" argalias ")"
 467         }
 468         {       comment = $4
 469                 if (NF < 7)
 470                         for (i = 5; i <= NF; i++)
 471                                 comment = comment " " $i
 472         }
 473
 474         #
 475         # The AUE_ audit event identifier.
 476         #
 477         {
 478                 auditev = $2;
 479         }
 480
 481         #
 482         # The flags, if any.
 483         #
 484         {
 485                 flags = "0";
 486         }
 487
 488         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 489             || type("NOSTD") {
 490                 parseline()
 491                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 492                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 493                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
 494                 if (argc > 0) {
 495                         printf("\t\tswitch(ndx) {\n") > systracetmp
 496                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 497                         for (i = 1; i <= argc; i++) {
 498                                 arg = argtype[i]
 499                                 sub("__restrict$", "", arg)
 500                                 if (index(arg, "*") > 0)
 501                                         printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 502                                 else
 503                                         printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 504                                 if (index(arg, "*") > 0 || arg == "caddr_t")
 505                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 506                                              i - 1, \
 507                                              argname[i], arg) > systrace
 508                                 else if (arg == "union l_semun")
 509                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
 510                                              i - 1, \
 511                                              argname[i], arg) > systrace
 512                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
 513                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 514                                              i - 1, \
 515                                              argname[i], arg) > systrace
 516                                 else
 517                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 518                                              i - 1, \
 519                                              argname[i], arg) > systrace
 520                         }
 521                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 522
 523                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
 524                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
 525                         printf("\t\tbreak;\n") > systraceret
 526                 }
 527                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 528                 printf("\t\tbreak;\n") > systracetmp
 529                 if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF")) {
 530                         if (argc != 0) {
 531                                 printf("struct %s {\n", argalias) > sysarg
 532                                 for (i = 1; i <= argc; i++)
 533                                         printf("\tchar %s_l_[PADL_(%s)]; " \
 534                                             "%s %s; char %s_r_[PADR_(%s)];\n",
 535                                             argname[i], argtype[i],
 536                                             argtype[i], argname[i],
 537                                             argname[i], argtype[i]) > sysarg
 538                                 printf("};\n") > sysarg
 539                         } else
 540                                 printf("struct %s {\n\tregister_t dummy;\n};\n",
 541                                     argalias) > sysarg
 542                 }
 543                 if (!flag("NOPROTO") && !flag("NODEF")) {
 544                         if (funcname == "nosys" || funcname == "lkmnosys" ||
 545                             funcname == "sysarch" || funcname ~ /^freebsd/ ||
 546                             funcname ~ /^linux/ || funcname ~ /^cloudabi/) {
 547                                 printf("%s\t%s(struct thread *, struct %s *)",
 548                                     rettype, funcname, argalias) > sysdcl
 549                         } else {
 550                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 551                                     rettype, funcname, argalias) > sysdcl
 552                         }
 553                         printf(";\n") > sysdcl
 554                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 555                             funcalias, auditev) > sysaue
 556                 }
 557                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 558                 column = 8 + 2 + length(argssize) + 15
 559                 if (flag("NOSTD")) {
 560                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
 561                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 562                 } else {
 563                         if (funcname == "nosys" || funcname == "sysarch" ||
 564                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 565                             funcname ~ /^linux/ || funcname ~ /^cloudabi/) {
 566                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 567                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 568                         } else {
 569                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 570                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 571                         }
 572                 }
 573                 align_sysent_comment(column)
 574                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 575                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 576                     funcalias, syscall, funcalias) > sysnames
 577                 if (!flag("NODEF")) {
 578                         printf("#define\t%s%s\t%d\n", syscallprefix,
 579                             funcalias, syscall) > syshdr
 580                         printf(" \\\n\t%s.o", funcalias) > sysmk
 581                 }
 582                 syscall++
 583                 next
 584         }
 585         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 586             type("COMPAT7") || type("COMPAT10") || type("COMPAT11") || \
 587             type("COMPAT12") {
 588                 if (flag("COMPAT")) {
 589                         ncompat++
 590                         out = syscompat
 591                         outdcl = syscompatdcl
 592                         wrap = "compat"
 593                         prefix = "o"
 594                         descr = "old"
 595                 } else if (flag("COMPAT4")) {
 596                         ncompat4++
 597                         out = syscompat4
 598                         outdcl = syscompat4dcl
 599                         wrap = "compat4"
 600                         prefix = "freebsd4_"
 601                         descr = "freebsd4"
 602                 } else if (flag("COMPAT6")) {
 603                         ncompat6++
 604                         out = syscompat6
 605                         outdcl = syscompat6dcl
 606                         wrap = "compat6"
 607                         prefix = "freebsd6_"
 608                         descr = "freebsd6"
 609                 } else if (flag("COMPAT7")) {
 610                         ncompat7++
 611                         out = syscompat7
 612                         outdcl = syscompat7dcl
 613                         wrap = "compat7"
 614                         prefix = "freebsd7_"
 615                         descr = "freebsd7"
 616                 } else if (flag("COMPAT10")) {
 617                         ncompat10++
 618                         out = syscompat10
 619                         outdcl = syscompat10dcl
 620                         wrap = "compat10"
 621                         prefix = "freebsd10_"
 622                         descr = "freebsd10"
 623                 } else if (flag("COMPAT11")) {
 624                         ncompat11++
 625                         out = syscompat11
 626                         outdcl = syscompat11dcl
 627                         wrap = "compat11"
 628                         prefix = "freebsd11_"
 629                         descr = "freebsd11"
 630                 } else if (flag("COMPAT12")) {
 631                         ncompat12++
 632                         out = syscompat12
 633                         outdcl = syscompat12dcl
 634                         wrap = "compat12"
 635                         prefix = "freebsd12_"
 636                         descr = "freebsd12"
 637                 }
 638                 parseline()
 639                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 640                     !flag("NODEF")) {
 641                         printf("struct %s {\n", argalias) > out
 642                         for (i = 1; i <= argc; i++)
 643                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 644                                     "char %s_r_[PADR_(%s)];\n",
 645                                     argname[i], argtype[i],
 646                                     argtype[i], argname[i],
 647                                     argname[i], argtype[i]) > out
 648                         printf("};\n") > out
 649                 }
 650                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 651                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 652                             argalias) > sysarg
 653                 if (!flag("NOPROTO") && !flag("NODEF")) {
 654                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 655                             rettype, prefix, funcname, argalias) > outdcl
 656                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 657                             prefix, funcname, auditev) > sysaue
 658                 }
 659                 if (flag("NOSTD")) {
 660                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 661                             "0", "lkmressys", "AUE_NULL") > sysent
 662                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 663                             length("lkmressys") + length("AUE_NULL") + 3)
 664                 } else {
 665                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 666                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 667                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 668                             length(funcname) + length(auditev) + \
 669                             length(flags) + 4)
 670                 }
 671                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 672                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 673                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 674                 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
 675                 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
 676                         printf("\t\t\t\t/* %d is %s %s */\n",
 677                             syscall, descr, funcalias) > syshdr
 678                 } else if (!flag("NODEF")) {
 679                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 680                             prefix, funcalias, syscall) > syshdr
 681                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 682                 }
 683                 syscall++
 684                 next
 685         }
 686         type("OBSOL") {
 687                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 688                 align_sysent_comment(34)
 689                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 690                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 691                     $4, syscall, comment) > sysnames
 692                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 693                     syscall, comment) > syshdr
 694                 syscall++
 695                 next
 696         }
 697         type("UNIMPL") {
 698                 while (syscall <= syscall_range[2]) {
 699                         printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 700                             syscall, comment) > sysent
 701                         printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 702                             syscall, syscall, comment) > sysnames
 703                         syscall++
 704                 }
 705                 next
 706         }
 707         {
 708                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 709                 exit 1
 710         }
 711         END {
 712                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 713
 714                 if (ncompat != 0) {
 715                         printf "\n#ifdef %s\n", compat > sysinc
 716                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 717                         printf "#else\n" > sysinc
 718                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 719                         printf "#endif\n" > sysinc
 720                 }
 721
 722                 if (ncompat4 != 0) {
 723                         printf "\n#ifdef %s\n", compat4 > sysinc
 724                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 725                         printf "#else\n" > sysinc
 726                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 727                         printf "#endif\n" > sysinc
 728                 }
 729
 730                 if (ncompat6 != 0) {
 731                         printf "\n#ifdef %s\n", compat6 > sysinc
 732                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 733                         printf "#else\n" > sysinc
 734                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 735                         printf "#endif\n" > sysinc
 736                 }
 737
 738                 if (ncompat7 != 0) {
 739                         printf "\n#ifdef %s\n", compat7 > sysinc
 740                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 741                         printf "#else\n" > sysinc
 742                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 743                         printf "#endif\n" > sysinc
 744                 }
 745                 if (ncompat10 != 0) {
 746                         printf "\n#ifdef %s\n", compat10 > sysinc
 747                         printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
 748                         printf "#else\n" > sysinc
 749                         printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 750                         printf "#endif\n" > sysinc
 751                 }
 752                 if (ncompat11 != 0) {
 753                         printf "\n#ifdef %s\n", compat11 > sysinc
 754                         printf "#define compat11(n, name) n, (sy_call_t *)__CONCAT(freebsd11_,name)\n" > sysinc
 755                         printf "#else\n" > sysinc
 756                         printf "#define compat11(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 757                         printf "#endif\n" > sysinc
 758                 }
 759                 if (ncompat12 != 0) {
 760                         printf "\n#ifdef %s\n", compat12 > sysinc
 761                         printf "#define compat12(n, name) n, (sy_call_t *)__CONCAT(freebsd12_,name)\n" > sysinc
 762                         printf "#else\n" > sysinc
 763                         printf "#define compat12(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 764                         printf "#endif\n" > sysinc
 765                 }
 766
 767                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 768                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 769                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 770                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 771                 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
 772                 printf("\n#endif /* %s */\n\n", compat11) > syscompat11dcl
 773                 printf("\n#endif /* %s */\n\n", compat12) > syscompat12dcl
 774
 775                 printf("\n#undef PAD_\n") > sysprotoend
 776                 printf("#undef PADL_\n") > sysprotoend
 777                 printf("#undef PADR_\n") > sysprotoend
 778                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 779
 780                 printf("\n") > sysmk
 781                 printf("};\n") > sysent
 782                 printf("};\n") > sysnames
 783                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 784                     > syshdr
 785                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 786                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 787                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
 788         } '
 789
 790 cat $sysinc $sysent >> $syssw
 791 cat $sysarg $sysdcl \
 792         $syscompat $syscompatdcl \
 793         $syscompat4 $syscompat4dcl \
 794         $syscompat6 $syscompat6dcl \
 795         $syscompat7 $syscompat7dcl \
 796         $syscompat10 $syscompat10dcl \
 797         $syscompat11 $syscompat11dcl \
 798         $syscompat12 $syscompat12dcl \
 799         $sysaue $sysprotoend > $sysproto
 800 cat $systracetmp >> $systrace
 801 cat $systraceret >> $systrace
 802