sys/kern/makesyscalls.sh

   1 #! /bin/sh -
   2 #       @(#)makesyscalls.sh     8.1 (Berkeley) 6/10/93
   3 # $FreeBSD: src/sys/kern/makesyscalls.sh,v 1.39.2.4 2001/10/20 09:01:24 marcel Exp $
   4 # $DragonFly: src/sys/kern/makesyscalls.sh,v 1.15 2006/06/30 20:41:08 eirikn Exp $
   5
   6 set -e
   7
   8 # name of compat option:
   9 compat=COMPAT_43
  10 # name of DragonFly 1.2 compat option
  11 compatdf12=COMPAT_DF12
  12
  13 # output files:
  14 sysnames="syscalls.c"
  15 sysproto="../sys/sysproto.h"
  16 sysunion="../sys/sysunion.h"
  17 sysproto_h=_SYS_SYSPROTO_H_
  18 syshdr="../sys/syscall.h"
  19 sysmk="../sys/syscall.mk"
  20 syssw="init_sysent.c"
  21 syshide="../sys/syscall-hide.h"
  22 syscallprefix="SYS_"
  23 switchname="sysent"
  24 namesname="syscallnames"
  25
  26 # tmp files:
  27 sysdcl="sysent.dcl.$$"
  28 syscompat="sysent.compat.$$"
  29 syscompatdf12="sysent.compatdf12.$$"
  30 syscompatdcl="sysent.compatdcl.$$"
  31 syscompatdcldf12="sysent.compatdcldf12.$$"
  32 sysent="sysent.switch.$$"
  33 sysinc="sysinc.switch.$$"
  34 sysarg="sysarg.switch.$$"
  35 sysun="sysunion.switch.$$"
  36
  37 trap "rm $sysdcl $syscompat $syscompatdf12 $syscompatdcl $syscompatdcldf12 $sysent $sysinc $sysarg $sysun" 0
  38
  39 touch $sysdcl $syscompat $syscompatdf12 $syscompatdcl $syscompatdf12 $sysent $sysinc $sysarg $sysun
  40
  41 case $# in
  42     0)  echo "Usage: $0 input-file <config-file>" 1>&2
  43         exit 1
  44         ;;
  45 esac
  46
  47 if [ -n "$2" -a -f "$2" ]; then
  48         . $2
  49 fi
  50
  51 sed -e '
  52 s/\$//g
  53 :join
  54         /\\$/{a\
  55
  56         N
  57         s/\\\n//
  58         b join
  59         }
  60 2,${
  61         /^#/!s/\([{}()*,]\)/ \1 /g
  62 }
  63 ' < $1 | awk "
  64         BEGIN {
  65                 sysdcl = \"$sysdcl\"
  66                 sysproto = \"$sysproto\"
  67                 sysproto_h = \"$sysproto_h\"
  68                 syscompat = \"$syscompat\"
  69                 syscompatdf12 = \"$syscompatdf12\"
  70                 syscompatdcl = \"$syscompatdcl\"
  71                 syscompatdcldf12 = \"$syscompatdcldf12\"
  72                 sysent = \"$sysent\"
  73                 syssw = \"$syssw\"
  74                 sysinc = \"$sysinc\"
  75                 sysarg = \"$sysarg\"
  76                 sysun = \"$sysun\"
  77                 sysnames = \"$sysnames\"
  78                 syshdr = \"$syshdr\"
  79                 sysmk = \"$sysmk\"
  80                 compat = \"$compat\"
  81                 compatdf12 = \"$compatdf12\"
  82                 syshide = \"$syshide\"
  83                 syscallprefix = \"$syscallprefix\"
  84                 switchname = \"$switchname\"
  85                 namesname = \"$namesname\"
  86                 infile = \"$1\"
  87                 "'
  88
  89                 printf "/*\n * System call switch table.\n *\n" > syssw
  90                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
  91                 printf " * \$\DragonFly\$\n" > syssw
  92
  93                 printf "/*\n * System call prototypes.\n *\n" > sysarg
  94                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
  95                 printf " * \$\DragonFly\$\n" > sysarg
  96
  97                 printf "\n#ifdef %s\n\n", compat > syscompat
  98                 printf "\n#ifdef %s\n\n", compatdf12 > syscompatdf12
  99
 100                 printf "/*\n * System call names.\n *\n" > sysnames
 101                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
 102                 printf " * \$\DragonFly\$\n" > sysnames
 103
 104                 printf "/*\n * System call numbers.\n *\n" > syshdr
 105                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
 106                 printf " * \$\DragonFly\$\n" > syshdr
 107                 printf "# DragonFly system call names.\n" > sysmk
 108                 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
 109                 printf "# \$\DragonFly\$\n" > sysmk
 110                 printf "/*\n * System call hiders.\n *\n" > syshide
 111                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshide
 112                 printf " * \$\DragonFly\$\n" > syshide
 113
 114                 printf "/*\n * Union of syscall args for messaging.\n *\n" > sysun
 115                 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysun
 116                 printf " * \$\DragonFly\$\n" > sysun
 117                 printf "\n#ifdef _KERNEL\n\n" > sysdcl
 118                 printf "\n#ifdef _KERNEL\n\n" > syscompatdcl
 119                 printf "\n#ifdef _KERNEL\n\n" > syscompatdcldf12
 120         }
 121         NR == 1 {
 122                 gsub("[$]DragonFly: ", "", $0)
 123                 gsub(" [$]", "", $0)
 124
 125                 printf " * created from%s\n */\n\n", $0 > syssw
 126
 127                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 128                 printf "struct sysent %s[] = {\n",switchname > sysent
 129
 130                 printf " * created from%s\n */\n\n", $0 > sysarg
 131                 printf "#ifndef %s\n", sysproto_h > sysarg
 132                 printf "#define\t%s\n\n", sysproto_h > sysarg
 133                 printf "#include <sys/signal.h>\n\n" > sysarg
 134                 printf "#include <sys/acl.h>\n\n" > sysarg
 135                 printf "#include <sys/msgport.h>\n\n" > sysarg
 136                 printf "#include <sys/sysmsg.h>\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
 140                 printf " * created from%s\n */\n\n", $0 > sysnames
 141                 printf "char *%s[] = {\n", namesname > sysnames
 142
 143                 printf " * created from%s\n */\n\n", $0 > syshdr
 144
 145                 printf "# created from%s\nMIASM = ", $0 > sysmk
 146
 147                 printf " * created from%s\n */\n\n", $0 > syshide
 148                 printf " * created from%s\n */\n\n", $0 > sysun
 149                 printf "union sysunion {\n" > sysun
 150                 printf "#ifdef _KERNEL /* header only applies in kernel */\n" > sysun
 151                 printf "\tstruct\tlwkt_msg lmsg;\n" > sysun
 152                 printf "\tstruct\tsysmsg sysmsg;\n" > sysun
 153                 printf "#endif\n" > sysun
 154
 155                 next
 156         }
 157         NF == 0 || $1 ~ /^;/ {
 158                 next
 159         }
 160         $1 ~ /^#[       ]*include/ {
 161                 print > sysinc
 162                 next
 163         }
 164         $1 ~ /^#[       ]*if/ {
 165                 print > sysent
 166                 print > sysdcl
 167                 print > sysarg
 168                 print > syscompat
 169                 print > syscompatdf12
 170                 print > sysnames
 171                 print > syshide
 172                 print > sysun
 173                 savesyscall = syscall
 174                 next
 175         }
 176         $1 ~ /^#[       ]*else/ {
 177                 print > sysent
 178                 print > sysdcl
 179                 print > sysarg
 180                 print > sysun
 181                 print > syscompat
 182                 print > syscompatdf12
 183                 print > sysnames
 184                 print > syshide
 185                 syscall = savesyscall
 186                 next
 187         }
 188         $1 ~ /^#/ {
 189                 print > sysent
 190                 print > sysdcl
 191                 print > sysarg
 192                 print > sysun
 193                 print > syscompat
 194                 print > syscompatdf12
 195                 print > sysnames
 196                 print > syshide
 197                 next
 198         }
 199         syscall != $1 {
 200                 printf "%s: line %d: syscall number out of sync at %d\n",
 201                     infile, NR, syscall
 202                 printf "line is:\n"
 203                 print
 204                 exit 1
 205         }
 206         function align_sysent_comment(column) {
 207                 printf("\t") > sysent
 208                 column = column + 8 - column % 8
 209                 while (column < 56) {
 210                         printf("\t") > sysent
 211                         column = column + 8
 212                 }
 213         }
 214         function parserr(was, wanted) {
 215                 printf "%s: line %d: unexpected %s (expected %s)\n",
 216                     infile, NR, was, wanted
 217                 exit 1
 218         }
 219         function parseline() {
 220                 f=4                     # toss number and type
 221                 argc= 0;
 222                 argssize = "0"
 223                 if ($NF != "}") {
 224                         funcalias=$(NF-2)
 225                         argalias=$(NF-1)
 226                         rettype=$NF
 227                         end=NF-3
 228                 } else {
 229                         funcalias=""
 230                         argalias=""
 231                         rettype="int"
 232                         end=NF
 233                 }
 234                 if ($2 == "NODEF") {
 235                         funcname=$4
 236                         argssize = "AS(" $6 ")"
 237                         return
 238                 }
 239                 if ($f != "{")
 240                         parserr($f, "{")
 241                 f++
 242                 if ($end != "}")
 243                         parserr($end, "}")
 244                 end--
 245                 if ($end != ";")
 246                         parserr($end, ";")
 247                 end--
 248                 if ($end != ")")
 249                         parserr($end, ")")
 250                 end--
 251
 252                 f++     #function return type
 253
 254                 funcname=$f
 255                 usefuncname=$f
 256                 if (funcalias == "")
 257                         funcalias = funcname
 258                 if (argalias == "") {
 259                         argalias = funcname "_args"
 260                         if ($2 == "COMPAT") {
 261                                 argalias = "o" argalias
 262                                 usefuncname = "sys_o" funcname
 263                         }
 264                         if ($2 == "COMPAT_DF12") {
 265                                 argalias = "dfbsd12_" argalias
 266                                 usefuncname = "sys_dfbsd12_" funcname
 267                         }
 268                 }
 269                 f++
 270
 271                 if ($f != "(")
 272                         parserr($f, ")")
 273                 f++
 274
 275                 if (f == end) {
 276                         if ($f != "void")
 277                                 parserr($f, "argument definition")
 278                         return
 279                 }
 280
 281                 while (f <= end) {
 282                         argc++
 283                         argtype[argc]=""
 284                         oldf=""
 285                         while (f < end && $(f+1) != ",") {
 286                                 if (argtype[argc] != "" && oldf != "*")
 287                                         argtype[argc] = argtype[argc]" ";
 288                                 argtype[argc] = argtype[argc]$f;
 289                                 oldf = $f;
 290                                 f++
 291                         }
 292                         if (argtype[argc] == "")
 293                                 parserr($f, "argument definition")
 294                         argname[argc]=$f;
 295                         f += 2;                 # skip name, and any comma
 296                 }
 297                 if (argc != 0)
 298                         argssize = "AS(" argalias ")"
 299         }
 300         {       comment = $4
 301                 if (NF < 7)
 302                         for (i = 5; i <= NF; i++)
 303                                 comment = comment " " $i
 304         }
 305         # if the "MPSAFE" keyword is found, note it and shift the line
 306         mpsafe = ""
 307         $2 == "MPSAFE" {
 308                 for (i = 2; i <= NF; i++)
 309                         $i = $(i + 1);
 310                 NF -= 1;
 311                 mpsafe = "SYF_MPSAFE | "
 312         }
 313         $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS"  || $2 == "NOPROTO" \
 314             || $2 == "NOIMPL" {
 315                 parseline()
 316                 if ((!nosys || funcname != "nosys") && \
 317                     (funcname != "lkmnosys")) {
 318                         if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") {
 319                                 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 320                                 printf("struct\t%s {\n", argalias) > sysarg
 321                                 printf("#ifdef _KERNEL\n") > sysarg
 322                                 printf("\tstruct sysmsg sysmsg;\n") > sysarg
 323                                 printf("#endif\n") > sysarg
 324                                 for (i = 1; i <= argc; i++)
 325                                         printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n",
 326                                             argtype[i], argname[i],
 327                                             argname[i], argtype[i]) > sysarg
 328                                 printf("};\n") > sysarg
 329                         }
 330                         else if ($2 != "NOARGS" && $2 != "NOPROTO" && \
 331                             $2 != "NODEF") {
 332                                 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 333                                 printf("struct\t%s {\n", argalias) > sysarg
 334                                 printf("#ifdef _KERNEL\n") > sysarg
 335                                 printf("\tstruct sysmsg sysmsg;\n") > sysarg
 336                                 printf("#endif\n") > sysarg
 337                                 printf("\tregister_t dummy;\n") > sysarg
 338                                 printf("};\n") > sysarg
 339                         }
 340                 }
 341                 if (($2 != "NOPROTO" && $2 != "NODEF" && \
 342                     (funcname != "nosys" || !nosys)) || \
 343                     (funcname == "lkmnosys" && !lkmnosys) || \
 344                     funcname == "lkmressys") {
 345                         printf("%s\tsys_%s (struct %s *)",
 346                             rettype, funcname, argalias) > sysdcl
 347                         printf(";\n") > sysdcl
 348                 }
 349                 if (funcname == "nosys")
 350                         nosys = 1
 351                 if (funcname == "lkmnosys")
 352                         lkmnosys = 1
 353                 printf("\t{ %s%s, (sy_call_t *)", mpsafe, argssize) > sysent
 354                 column = 8 + 2 + length(mpsafe) + length(argssize) + 15
 355                 if ($2 != "NOIMPL") {
 356                         printf("sys_%s },", funcname) > sysent
 357                         column = column + length(funcname) + 7
 358                 } else {
 359                         printf("sys_%s },", "nosys") > sysent
 360                         column = column + length("nosys") + 7
 361                 }
 362                 align_sysent_comment(column)
 363                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 364                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 365                     funcalias, syscall, funcalias) > sysnames
 366                 if ($2 != "NODEF") {
 367                         printf("#define\t%s%s\t%d\n", syscallprefix,
 368                             funcalias, syscall) > syshdr
 369                         printf(" \\\n\t%s.o", funcalias) > sysmk
 370                 }
 371                 if ($3 != "NOHIDE")
 372                         printf("HIDE_%s(%s)\n", $3, funcname) > syshide
 373                 syscall++
 374                 next
 375         }
 376         $2 == "COMPAT" || $2 == "CPT_NOA" {
 377                 ncompat++
 378                 parseline()
 379                 if (argc != 0 && $2 != "CPT_NOA") {
 380                         printf("#ifdef %s\n", compat) > sysun
 381                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 382                         printf("#endif\n") > sysun
 383                         printf("struct\t%s {\n", argalias) > syscompat
 384                         printf("#ifdef _KERNEL\n") > syscompat
 385                         printf("\tstruct sysmsg sysmsg;\n") > syscompat
 386                         printf("#endif\n") > syscompat
 387                         for (i = 1; i <= argc; i++)
 388                                 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n",
 389                                     argtype[i], argname[i],
 390                                     argname[i], argtype[i]) > syscompat
 391                         printf("};\n") > syscompat
 392                 }
 393                 else if($2 != "CPT_NOA") {
 394                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 395                         printf("struct\t%s {\n", argalias) > sysarg
 396                         printf("#ifdef _KERNEL\n") > sysarg
 397                         printf("\tstruct sysmsg sysmsg;\n") > sysarg
 398                         printf("#endif\n") > sysarg
 399                         printf("\tregister_t dummy;\n") > sysarg
 400                         printf("};\n") > sysarg
 401                 }
 402                 printf("%s\tsys_o%s (struct %s *);\n",
 403                     rettype, funcname, argalias) > syscompatdcl
 404                 printf("\t{ compat(%s%s,%s) },",
 405                     mpsafe, argssize, funcname) > sysent
 406                 align_sysent_comment(8 + 9 + length(mpsafe) + \
 407                     length(argssize) + 1 + length(funcname) + 4)
 408                 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
 409                 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
 410                     funcalias, syscall, funcalias) > sysnames
 411                 printf("\t\t\t\t/* %d is old %s */\n",
 412                     syscall, funcalias) > syshdr
 413                 if ($3 != "NOHIDE")
 414                         printf("HIDE_%s(%s)\n", $3, funcname) > syshide
 415                 syscall++
 416                 next
 417         }
 418         $2 == "COMPAT_DF12" {
 419                 ncompatdf12++
 420                 parseline()
 421                 if (argc != 0) {
 422                         printf("#ifdef %s\n", compatdf12) > sysun
 423                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 424                         printf("#endif\n") > sysun
 425                         printf("struct\t%s {\n", argalias) > syscompatdf12
 426                         printf("#ifdef _KERNEL\n") > syscompatdf12
 427                         printf("\tstruct sysmsg sysmsg;\n") > syscompatdf12
 428                         printf("#endif\n") > syscompatdf12
 429                         for (i = 1; i <= argc; i++)
 430                                 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n",
 431                                     argtype[i], argname[i],
 432                                     argname[i], argtype[i]) > syscompatdf12
 433                         printf("};\n") > syscompatdf12
 434                 }
 435                 else {
 436                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 437                         printf("struct\t%s {\n", argalias) > sysarg
 438                         printf("#ifdef _KERNEL\n") > sysarg
 439                         printf("\tstruct sysmsg sysmsg;\n") > sysarg
 440                         printf("#endif\n") > sysarg
 441                         printf("\tregister_t dummy;\n") > sysarg
 442                         printf("};\n") > sysarg
 443                 }
 444                 printf("%s\tsys_dfbsd12_%s (struct %s *);\n",
 445                     rettype, funcname, argalias) > syscompatdcldf12
 446                 printf("\t{ compatdf12(%s%s,%s) },",
 447                     mpsafe, argssize, funcname) > sysent
 448                 align_sysent_comment(8 + 9 + length(mpsafe) + \
 449                     length(argssize) + 1 + length(funcname) + 4)
 450                 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
 451                 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
 452                     funcalias, syscall, funcalias) > sysnames
 453                 printf("\t\t\t\t/* %d is old %s */\n",
 454                     syscall, funcalias) > syshdr
 455                 if ($3 != "NOHIDE")
 456                         printf("HIDE_%s(%s)\n", $3, funcname) > syshide
 457                 syscall++
 458                 next
 459         }
 460         $2 == "LIBCOMPAT" {
 461                 ncompat++
 462                 parseline()
 463                 printf("%s\tsys_o%s();\n", rettype, funcname) > syscompatdcl
 464                 printf("\t{ compat(%s%s,%s) },",
 465                     mpsafe, argssize, funcname) > sysent
 466                 align_sysent_comment(8 + 9 + length(mpsafe) + \
 467                     length(argssize) + 1 + length(funcname) + 4)
 468                 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
 469                 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
 470                     funcalias, syscall, funcalias) > sysnames
 471                 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n",
 472                     syscallprefix, funcalias, syscall) > syshdr
 473                 printf(" \\\n\t%s.o", funcalias) > sysmk
 474                 if ($3 != "NOHIDE")
 475                         printf("HIDE_%s(%s)\n", $3, funcname) > syshide
 476                 syscall++
 477                 next
 478         }
 479         $2 == "OBSOL" {
 480                 printf("\t{ 0, (sy_call_t *)sys_nosys },") > sysent
 481                 align_sysent_comment(37)
 482                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 483                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 484                     $4, syscall, comment) > sysnames
 485                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 486                     syscall, comment) > syshdr
 487                 if ($3 != "NOHIDE")
 488                         printf("HIDE_%s(%s)\n", $3, $4) > syshide
 489                 syscall++
 490                 next
 491         }
 492         $2 == "UNIMPL" {
 493                 printf("\t{ 0, (sy_call_t *)sys_nosys },\t\t\t/* %d = %s */\n",
 494                     syscall, comment) > sysent
 495                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 496                     syscall, syscall, comment) > sysnames
 497                 if ($3 != "NOHIDE")
 498                         printf("HIDE_%s(%s)\n", $3, $4) > syshide
 499                 syscall++
 500                 next
 501         }
 502         {
 503                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2
 504                 exit 1
 505         }
 506         END {
 507                 printf "\n#define AS(name) ((sizeof(struct name) - sizeof(struct sysmsg)) / sizeof(register_t))\n" > sysinc
 508                 if (ncompat != 0) {
 509                         printf "#include \"opt_compat.h\"\n\n" > syssw
 510                         printf "\n#ifdef %s\n", compat > sysinc
 511                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(sys_,__CONCAT(o,name))\n" > sysinc
 512                         printf "#else\n" > sysinc
 513                         printf "#define compat(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc
 514                         printf "#endif\n" > sysinc
 515                 }
 516
 517                 if (ncompatdf12 != 0) {
 518                         printf "#include \"opt_compatdf12.h\"\n\n" > syssw
 519                         printf "\n#ifdef %s\n", compatdf12 > sysinc
 520                         printf "#define compatdf12(n, name) n, (sy_call_t *)__CONCAT(sys_,__CONCAT(dfbsd12_,name))\n" > sysinc
 521                         printf "#else\n" > sysinc
 522                         printf "#define compatdf12(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc
 523                         printf "#endif\n" > sysinc
 524                 }
 525
 526                 printf("\n#endif /* _KERNEL */\n") > syscompatdcl
 527                 printf("\n#endif /* _KERNEL */\n") > syscompatdcldf12
 528                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 529                 printf("\n#endif /* %s */\n\n", compatdf12) > syscompatdcldf12
 530
 531                 printf("\n") > sysmk
 532                 printf("};\n") > sysent
 533                 printf("};\n") > sysnames
 534                 printf("};\n") > sysun
 535                 printf("\n#endif /* !%s */\n", sysproto_h) > sysdcl
 536                 printf("#undef PAD_\n") > sysdcl
 537                 printf("\n#endif /* _KERNEL */\n") > sysdcl
 538                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 539                     > syshdr
 540         } '
 541
 542 cat $sysinc $sysent >> $syssw
 543 cat $sysarg $syscompat $syscompatdcl $syscompatdf12 $syscompatdcldf12 $sysdcl > $sysproto
 544 cat $sysun > $sysunion