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
  13 # output files:
  14 sysnames="syscalls.c"
  15 sysproto="../sys/sysproto.h"
  16 sysproto_h=_SYS_SYSPROTO_H_
  17 syshdr="../sys/syscall.h"
  18 sysmk="../sys/syscall.mk"
  19 syssw="init_sysent.c"
  20 syscallprefix="SYS_"
  21 switchname="sysent"
  22 namesname="syscallnames"
  23 systrace="systrace_args.c"
  24
  25 # tmp files:
  26 sysaue="sysent.aue.$$"
  27 sysdcl="sysent.dcl.$$"
  28 syscompat="sysent.compat.$$"
  29 syscompatdcl="sysent.compatdcl.$$"
  30 syscompat4="sysent.compat4.$$"
  31 syscompat4dcl="sysent.compat4dcl.$$"
  32 syscompat6="sysent.compat6.$$"
  33 syscompat6dcl="sysent.compat6dcl.$$"
  34 syscompat7="sysent.compat7.$$"
  35 syscompat7dcl="sysent.compat7dcl.$$"
  36 sysent="sysent.switch.$$"
  37 sysinc="sysinc.switch.$$"
  38 sysarg="sysarg.switch.$$"
  39 sysprotoend="sysprotoend.$$"
  40 systracetmp="systrace.$$"
  41 systraceret="systraceret.$$"
  42
  43 if [ -r capabilities.conf ]; then
  44         capenabled=`cat capabilities.conf | grep -v "^#" | grep -v "^$"`
  45         capenabled=`echo $capenabled | sed 's/ /,/g'`
  46 else
  47         capenabled=""
  48 fi
  49
  50 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
  51
  52 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $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         . $2
  62 fi
  63
  64 sed -e '
  65 :join
  66         /\\$/{a\
  67
  68         N
  69         s/\\\n//
  70         b join
  71         }
  72 2,${
  73         /^#/!s/\([{}()*,]\)/ \1 /g
  74 }
  75 ' < $1 | awk "
  76         BEGIN {
  77                 sysaue = \"$sysaue\"
  78                 sysdcl = \"$sysdcl\"
  79                 sysproto = \"$sysproto\"
  80                 sysprotoend = \"$sysprotoend\"
  81                 sysproto_h = \"$sysproto_h\"
  82                 syscompat = \"$syscompat\"
  83                 syscompatdcl = \"$syscompatdcl\"
  84                 syscompat4 = \"$syscompat4\"
  85                 syscompat4dcl = \"$syscompat4dcl\"
  86                 syscompat6 = \"$syscompat6\"
  87                 syscompat6dcl = \"$syscompat6dcl\"
  88                 syscompat7 = \"$syscompat7\"
  89                 syscompat7dcl = \"$syscompat7dcl\"
  90                 sysent = \"$sysent\"
  91                 syssw = \"$syssw\"
  92                 sysinc = \"$sysinc\"
  93                 sysarg = \"$sysarg\"
  94                 sysnames = \"$sysnames\"
  95                 syshdr = \"$syshdr\"
  96                 sysmk = \"$sysmk\"
  97                 systrace = \"$systrace\"
  98                 systracetmp = \"$systracetmp\"
  99                 systraceret = \"$systraceret\"
 100                 compat = \"$compat\"
 101                 compat4 = \"$compat4\"
 102                 compat6 = \"$compat6\"
 103                 compat7 = \"$compat7\"
 104                 syscallprefix = \"$syscallprefix\"
 105                 switchname = \"$switchname\"
 106                 namesname = \"$namesname\"
 107                 infile = \"$1\"
 108                 capenabled_string = \"$capenabled\"
 109                 "'
 110
 111                 split(capenabled_string, capenabled, ",");
 112
 113                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 114                 printf "struct sysent %s[] = {\n",switchname > sysent
 115
 116                 printf "/*\n * System call switch table.\n *\n" > syssw
 117                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
 118                 printf " * $%s$\n", "FreeBSD" > syssw
 119                 printf " */\n\n" > syssw
 120
 121                 printf "/*\n * System call prototypes.\n *\n" > sysarg
 122                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
 123                 printf " * $%s$\n", "FreeBSD" > sysarg
 124                 printf " */\n\n" > sysarg
 125                 printf "#ifndef %s\n", sysproto_h > sysarg
 126                 printf "#define\t%s\n\n", sysproto_h > sysarg
 127                 printf "#include <sys/signal.h>\n" > sysarg
 128                 printf "#include <sys/acl.h>\n" > sysarg
 129                 printf "#include <sys/cpuset.h>\n" > sysarg
 130                 printf "#include <sys/_ffcounter.h>\n" > sysarg
 131                 printf "#include <sys/_semaphore.h>\n" > sysarg
 132                 printf "#include <sys/ucontext.h>\n" > sysarg
 133                 printf "#include <sys/wait.h>\n\n" > sysarg
 134                 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
 135                 printf "struct proc;\n\n" > sysarg
 136                 printf "struct thread;\n\n" > sysarg
 137                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 138                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 139                 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 140                 printf "#define\tPADL_(t)\t0\n" > sysarg
 141                 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
 142                 printf "#else\n" > sysarg
 143                 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
 144                 printf "#define\tPADR_(t)\t0\n" > sysarg
 145                 printf "#endif\n\n" > sysarg
 146
 147                 printf "\n#ifdef %s\n\n", compat > syscompat
 148                 printf "\n#ifdef %s\n\n", compat4 > syscompat4
 149                 printf "\n#ifdef %s\n\n", compat6 > syscompat6
 150                 printf "\n#ifdef %s\n\n", compat7 > syscompat7
 151
 152                 printf "/*\n * System call names.\n *\n" > sysnames
 153                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
 154                 printf " * $%s$\n", "FreeBSD" > sysnames
 155                 printf " */\n\n" > sysnames
 156                 printf "const char *%s[] = {\n", namesname > sysnames
 157
 158                 printf "/*\n * System call numbers.\n *\n" > syshdr
 159                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
 160                 printf " * $%s$\n", "FreeBSD" > syshdr
 161                 printf " */\n\n" > syshdr
 162
 163                 printf "# FreeBSD system call object files.\n" > sysmk
 164                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
 165                 printf "# $%s$\n", "FreeBSD" > sysmk
 166                 printf "MIASM = " > sysmk
 167
 168                 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
 169                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
 170                 printf " * $%s$\n", "FreeBSD" > systrace
 171                 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
 172                 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
 173                 printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
 174                 printf "\tswitch (sysnum) {\n" > systrace
 175
 176                 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
 177                 printf "\tswitch (sysnum) {\n" > systracetmp
 178
 179                 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
 180                 printf "\tswitch (sysnum) {\n" > systraceret
 181         }
 182         NR == 1 {
 183                 next
 184         }
 185         NF == 0 || $1 ~ /^;/ {
 186                 next
 187         }
 188         $1 ~ /^#[       ]*include/ {
 189                 print > sysinc
 190                 next
 191         }
 192         $1 ~ /^#[       ]*if/ {
 193                 print > sysent
 194                 print > sysdcl
 195                 print > sysarg
 196                 print > syscompat
 197                 print > syscompat4
 198                 print > syscompat6
 199                 print > syscompat7
 200                 print > sysnames
 201                 print > systrace
 202                 print > systracetmp
 203                 print > systraceret
 204                 savesyscall = syscall
 205                 next
 206         }
 207         $1 ~ /^#[       ]*else/ {
 208                 print > sysent
 209                 print > sysdcl
 210                 print > sysarg
 211                 print > syscompat
 212                 print > syscompat4
 213                 print > syscompat6
 214                 print > syscompat7
 215                 print > sysnames
 216                 print > systrace
 217                 print > systracetmp
 218                 print > systraceret
 219                 syscall = savesyscall
 220                 next
 221         }
 222         $1 ~ /^#/ {
 223                 print > sysent
 224                 print > sysdcl
 225                 print > sysarg
 226                 print > syscompat
 227                 print > syscompat4
 228                 print > syscompat6
 229                 print > syscompat7
 230                 print > sysnames
 231                 print > systrace
 232                 print > systracetmp
 233                 print > systraceret
 234                 next
 235         }
 236         syscall != $1 {
 237                 printf "%s: line %d: syscall number out of sync at %d\n",
 238                     infile, NR, syscall
 239                 printf "line is:\n"
 240                 print
 241                 exit 1
 242         }
 243         # Returns true if the type "name" is the first flag in the type field
 244         function type(name, flags, n) {
 245                 n = split($3, flags, /\|/)
 246                 return (n > 0 && flags[1] == name)
 247         }
 248         # Returns true if the flag "name" is set in the type field
 249         function flag(name, flags, i, n) {
 250                 n = split($3, flags, /\|/)
 251                 for (i = 1; i <= n; i++)
 252                         if (flags[i] == name)
 253                                 return 1
 254                 return 0
 255         }
 256         function align_sysent_comment(column) {
 257                 printf("\t") > sysent
 258                 column = column + 8 - column % 8
 259                 while (column < 56) {
 260                         printf("\t") > sysent
 261                         column = column + 8
 262                 }
 263         }
 264         function parserr(was, wanted) {
 265                 printf "%s: line %d: unexpected %s (expected %s)\n",
 266                     infile, NR, was, wanted
 267                 exit 1
 268         }
 269         function parseline() {
 270                 f=4                     # toss number, type, audit event
 271                 argc= 0;
 272                 argssize = "0"
 273                 thr_flag = "SY_THR_STATIC"
 274                 if (flag("NOTSTATIC")) {
 275                         thr_flag = "SY_THR_ABSENT"
 276                 }
 277                 if ($NF != "}") {
 278                         funcalias=$(NF-2)
 279                         argalias=$(NF-1)
 280                         rettype=$NF
 281                         end=NF-3
 282                 } else {
 283                         funcalias=""
 284                         argalias=""
 285                         rettype="int"
 286                         end=NF
 287                 }
 288                 if (flag("NODEF")) {
 289                         auditev="AUE_NULL"
 290                         funcname=$4
 291                         argssize = "AS(" $6 ")"
 292                         return
 293                 }
 294                 if ($f != "{")
 295                         parserr($f, "{")
 296                 f++
 297                 if ($end != "}")
 298                         parserr($end, "}")
 299                 end--
 300                 if ($end != ";")
 301                         parserr($end, ";")
 302                 end--
 303                 if ($end != ")")
 304                         parserr($end, ")")
 305                 end--
 306
 307                 syscallret=$f
 308                 f++
 309
 310                 funcname=$f
 311
 312                 #
 313                 # We now know the func name, so define a flags field for it.
 314                 # Do this before any other processing as we may return early
 315                 # from it.
 316                 #
 317                 for (cap in capenabled) {
 318                         if (funcname == capenabled[cap]) {
 319                                 flags = "SYF_CAPENABLED";
 320                         }
 321                 }
 322
 323                 if (funcalias == "")
 324                         funcalias = funcname
 325                 if (argalias == "") {
 326                         argalias = funcname "_args"
 327                         if (flag("COMPAT"))
 328                                 argalias = "o" argalias
 329                         if (flag("COMPAT4"))
 330                                 argalias = "freebsd4_" argalias
 331                         if (flag("COMPAT6"))
 332                                 argalias = "freebsd6_" argalias
 333                         if (flag("COMPAT7"))
 334                                 argalias = "freebsd7_" argalias
 335                 }
 336                 f++
 337
 338                 if ($f != "(")
 339                         parserr($f, ")")
 340                 f++
 341
 342                 if (f == end) {
 343                         if ($f != "void")
 344                                 parserr($f, "argument definition")
 345                         return
 346                 }
 347
 348                 while (f <= end) {
 349                         argc++
 350                         argtype[argc]=""
 351                         oldf=""
 352                         while (f < end && $(f+1) != ",") {
 353                                 if (argtype[argc] != "" && oldf != "*")
 354                                         argtype[argc] = argtype[argc]" ";
 355                                 argtype[argc] = argtype[argc]$f;
 356                                 oldf = $f;
 357                                 f++
 358                         }
 359                         if (argtype[argc] == "")
 360                                 parserr($f, "argument definition")
 361                         argname[argc]=$f;
 362                         f += 2;                 # skip name, and any comma
 363                 }
 364                 if (argc != 0)
 365                         argssize = "AS(" argalias ")"
 366         }
 367         {       comment = $4
 368                 if (NF < 7)
 369                         for (i = 5; i <= NF; i++)
 370                                 comment = comment " " $i
 371         }
 372
 373         #
 374         # The AUE_ audit event identifier.
 375         #
 376         {
 377                 auditev = $2;
 378         }
 379
 380         #
 381         # The flags, if any.
 382         #
 383         {
 384                 flags = "0";
 385         }
 386
 387         type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
 388             || type("NOSTD") {
 389                 parseline()
 390                 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
 391                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
 392                 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
 393                 if (argc > 0) {
 394                         printf("\t\tswitch(ndx) {\n") > systracetmp
 395                         printf("\t\tstruct %s *p = params;\n", argalias) > systrace
 396                         for (i = 1; i <= argc; i++) {
 397                                 arg = argtype[i]
 398                                 sub("__restrict$", "", arg)
 399                                 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
 400                                 if (index(arg, "*") > 0 || arg == "caddr_t")
 401                                         printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
 402                                              i - 1, \
 403                                              argname[i], arg) > systrace
 404                                 else if (arg == "union l_semun")
 405                                         printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
 406                                              i - 1, \
 407                                              argname[i], arg) > systrace
 408                                 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
 409                                         printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
 410                                              i - 1, \
 411                                              argname[i], arg) > systrace
 412                                 else
 413                                         printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
 414                                              i - 1, \
 415                                              argname[i], arg) > systrace
 416                         }
 417                         printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
 418
 419                         printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
 420                         printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
 421                         printf("\t\tbreak;\n") > systraceret
 422                 }
 423                 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
 424                 printf("\t\tbreak;\n") > systracetmp
 425                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 426                     !flag("NODEF")) {
 427                         printf("struct %s {\n", argalias) > sysarg
 428                         for (i = 1; i <= argc; i++)
 429                                 printf("\tchar %s_l_[PADL_(%s)]; " \
 430                                     "%s %s; char %s_r_[PADR_(%s)];\n",
 431                                     argname[i], argtype[i],
 432                                     argtype[i], argname[i],
 433                                     argname[i], argtype[i]) > sysarg
 434                         printf("};\n") > sysarg
 435                 }
 436                 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
 437                         printf("struct %s {\n\tregister_t dummy;\n};\n",
 438                             argalias) > sysarg
 439                 if (!flag("NOPROTO") && !flag("NODEF")) {
 440                         if (funcname == "nosys" || funcname == "lkmnosys" ||
 441                             funcname == "sysarch" || funcname ~ /^freebsd/ ||
 442                             funcname ~ /^linux/ || funcname ~ /^svr4/ ||
 443                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/) {
 444                                 printf("%s\t%s(struct thread *, struct %s *)",
 445                                     rettype, funcname, argalias) > sysdcl
 446                         } else {
 447                                 printf("%s\tsys_%s(struct thread *, struct %s *)",
 448                                     rettype, funcname, argalias) > sysdcl
 449                         }
 450                         printf(";\n") > sysdcl
 451                         printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
 452                             funcalias, auditev) > sysaue
 453                 }
 454                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 455                 column = 8 + 2 + length(argssize) + 15
 456                 if (flag("NOSTD")) {
 457                         printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
 458                         column = column + length("lkmressys") + length("AUE_NULL") + 3
 459                 } else {
 460                         if (funcname == "nosys" || funcname == "sysarch" ||
 461                             funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
 462                             funcname ~ /^linux/ || funcname ~ /^svr4/ ||
 463                             funcname ~ /^ibcs2/ || funcname ~ /^xenix/) {
 464                                 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 465                                 column = column + length(funcname) + length(auditev) + length(flags) + 3
 466                         } else {
 467                                 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
 468                                 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
 469                         }
 470                 }
 471                 align_sysent_comment(column)
 472                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 473                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 474                     funcalias, syscall, funcalias) > sysnames
 475                 if (!flag("NODEF")) {
 476                         printf("#define\t%s%s\t%d\n", syscallprefix,
 477                             funcalias, syscall) > syshdr
 478                         printf(" \\\n\t%s.o", funcalias) > sysmk
 479                 }
 480                 syscall++
 481                 next
 482         }
 483         type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
 484             type("COMPAT7") {
 485                 if (flag("COMPAT")) {
 486                         ncompat++
 487                         out = syscompat
 488                         outdcl = syscompatdcl
 489                         wrap = "compat"
 490                         prefix = "o"
 491                         descr = "old"
 492                 } else if (flag("COMPAT4")) {
 493                         ncompat4++
 494                         out = syscompat4
 495                         outdcl = syscompat4dcl
 496                         wrap = "compat4"
 497                         prefix = "freebsd4_"
 498                         descr = "freebsd4"
 499                 } else if (flag("COMPAT6")) {
 500                         ncompat6++
 501                         out = syscompat6
 502                         outdcl = syscompat6dcl
 503                         wrap = "compat6"
 504                         prefix = "freebsd6_"
 505                         descr = "freebsd6"
 506                 } else if (flag("COMPAT7")) {
 507                         ncompat7++
 508                         out = syscompat7
 509                         outdcl = syscompat7dcl
 510                         wrap = "compat7"
 511                         prefix = "freebsd7_"
 512                         descr = "freebsd7"
 513                 }
 514                 parseline()
 515                 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
 516                     !flag("NODEF")) {
 517                         printf("struct %s {\n", argalias) > out
 518                         for (i = 1; i <= argc; i++)
 519                                 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
 520                                     "char %s_r_[PADR_(%s)];\n",
 521                                     argname[i], argtype[i],
 522                                     argtype[i], argname[i],
 523                                     argname[i], argtype[i]) > out
 524                         printf("};\n") > out
 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                         printf("%s\t%s%s(struct thread *, struct %s *);\n",
 531                             rettype, prefix, funcname, argalias) > outdcl
 532                         printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
 533                             prefix, funcname, auditev) > sysaue
 534                 }
 535                 if (flag("NOSTD")) {
 536                         printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
 537                             "0", "lkmressys", "AUE_NULL") > sysent
 538                         align_sysent_comment(8 + 2 + length("0") + 15 + \
 539                             length("lkmressys") + length("AUE_NULL") + 3)
 540                 } else {
 541                         printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
 542                             wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
 543                         align_sysent_comment(8 + 9 + length(argssize) + 1 + \
 544                             length(funcname) + length(auditev) + \
 545                             length(flags) + 4)
 546                 }
 547                 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
 548                 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
 549                     wrap, funcalias, syscall, descr, funcalias) > sysnames
 550                 if (flag("COMPAT")) {
 551                         printf("\t\t\t\t/* %d is old %s */\n",
 552                             syscall, funcalias) > syshdr
 553                 } else if (!flag("NODEF")) {
 554                         printf("#define\t%s%s%s\t%d\n", syscallprefix,
 555                             prefix, funcalias, syscall) > syshdr
 556                         printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
 557                 }
 558                 syscall++
 559                 next
 560         }
 561         type("OBSOL") {
 562                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
 563                 align_sysent_comment(34)
 564                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 565                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 566                     $4, syscall, comment) > sysnames
 567                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 568                     syscall, comment) > syshdr
 569                 syscall++
 570                 next
 571         }
 572         type("UNIMPL") {
 573                 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
 574                     syscall, comment) > sysent
 575                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 576                     syscall, syscall, comment) > sysnames
 577                 syscall++
 578                 next
 579         }
 580         {
 581                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
 582                 exit 1
 583         }
 584         END {
 585                 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
 586
 587                 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0)
 588                         printf "#include \"opt_compat.h\"\n\n" > syssw
 589
 590                 if (ncompat != 0) {
 591                         printf "\n#ifdef %s\n", compat > sysinc
 592                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
 593                         printf "#else\n" > sysinc
 594                         printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 595                         printf "#endif\n" > sysinc
 596                 }
 597
 598                 if (ncompat4 != 0) {
 599                         printf "\n#ifdef %s\n", compat4 > sysinc
 600                         printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
 601                         printf "#else\n" > sysinc
 602                         printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 603                         printf "#endif\n" > sysinc
 604                 }
 605
 606                 if (ncompat6 != 0) {
 607                         printf "\n#ifdef %s\n", compat6 > sysinc
 608                         printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
 609                         printf "#else\n" > sysinc
 610                         printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 611                         printf "#endif\n" > sysinc
 612                 }
 613
 614                 if (ncompat7 != 0) {
 615                         printf "\n#ifdef %s\n", compat7 > sysinc
 616                         printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
 617                         printf "#else\n" > sysinc
 618                         printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
 619                         printf "#endif\n" > sysinc
 620                 }
 621
 622                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 623                 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
 624                 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
 625                 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
 626
 627                 printf("\n#undef PAD_\n") > sysprotoend
 628                 printf("#undef PADL_\n") > sysprotoend
 629                 printf("#undef PADR_\n") > sysprotoend
 630                 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 631
 632                 printf("\n") > sysmk
 633                 printf("};\n") > sysent
 634                 printf("};\n") > sysnames
 635                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 636                     > syshdr
 637                 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
 638                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
 639                 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
 640         } '
 641
 642 cat $sysinc $sysent >> $syssw
 643 cat $sysarg $sysdcl \
 644         $syscompat $syscompatdcl \
 645         $syscompat4 $syscompat4dcl \
 646         $syscompat6 $syscompat6dcl \
 647         $syscompat7 $syscompat7dcl \
 648         $sysaue $sysprotoend > $sysproto
 649 cat $systracetmp >> $systrace
 650 cat $systraceret >> $systrace
 651