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
   5 set -e
   6
   7 # name of compat option:
   8 compat=COMPAT_43
   9 # name of DragonFly 1.2 compat option
  10 compatdf12=COMPAT_DF12
  11
  12 # output files:
  13 sysnames="syscalls.c"
  14 sysproto="../sys/sysproto.h"
  15 sysunion="../sys/sysunion.h"
  16 sysproto_h=_SYS_SYSPROTO_H_
  17 syshdr="../sys/syscall.h"
  18 sysmk="../sys/syscall.mk"
  19 syssw="init_sysent.c"
  20 syshide="../sys/syscall-hide.h"
  21 syscallprefix="SYS_"
  22 switchname="sysent"
  23 namesname="syscallnames"
  24
  25 # tmp files:
  26 sysdcl="sysent.dcl.$$"
  27 syscompat="sysent.compat.$$"
  28 syscompatdf12="sysent.compatdf12.$$"
  29 syscompatdcl="sysent.compatdcl.$$"
  30 syscompatdcldf12="sysent.compatdcldf12.$$"
  31 sysent="sysent.switch.$$"
  32 sysinc="sysinc.switch.$$"
  33 sysarg="sysarg.switch.$$"
  34 sysun="sysunion.switch.$$"
  35
  36 trap "rm $sysdcl $syscompat $syscompatdf12 $syscompatdcl $syscompatdcldf12 $sysent $sysinc $sysarg $sysun" 0
  37
  38 touch $sysdcl $syscompat $syscompatdf12 $syscompatdcl $syscompatdcldf12 $sysent $sysinc $sysarg $sysun
  39
  40 case $# in
  41     0)  echo "Usage: $0 input-file <config-file>" 1>&2
  42         exit 1
  43         ;;
  44 esac
  45
  46 if [ -n "$2" -a -f "$2" ]; then
  47         . $2
  48 fi
  49
  50 sed -e '
  51 s/\$//g
  52 :join
  53         /\\$/{a\
  54
  55         N
  56         s/\\\n//
  57         b join
  58         }
  59 2,${
  60         /^#/!s/\([{}()*,]\)/ \1 /g
  61 }
  62 ' < $1 | awk "
  63         BEGIN {
  64                 sysdcl = \"$sysdcl\"
  65                 sysproto = \"$sysproto\"
  66                 sysproto_h = \"$sysproto_h\"
  67                 syscompat = \"$syscompat\"
  68                 syscompatdf12 = \"$syscompatdf12\"
  69                 syscompatdcl = \"$syscompatdcl\"
  70                 syscompatdcldf12 = \"$syscompatdcldf12\"
  71                 sysent = \"$sysent\"
  72                 syssw = \"$syssw\"
  73                 sysinc = \"$sysinc\"
  74                 sysarg = \"$sysarg\"
  75                 sysun = \"$sysun\"
  76                 sysnames = \"$sysnames\"
  77                 syshdr = \"$syshdr\"
  78                 sysmk = \"$sysmk\"
  79                 compat = \"$compat\"
  80                 compatdf12 = \"$compatdf12\"
  81                 syshide = \"$syshide\"
  82                 syscallprefix = \"$syscallprefix\"
  83                 switchname = \"$switchname\"
  84                 namesname = \"$namesname\"
  85                 infile = \"$1\"
  86                 "'
  87
  88                 printf "/*\n * System call switch table.\n *\n" > syssw
  89                 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syssw
  90                 printf " *               by running make sysent in the same directory.\n" > syssw
  91                 printf " */\n\n" > syssw
  92
  93                 printf "/*\n * System call prototypes.\n *\n" > sysarg
  94                 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysarg
  95                 printf " *               by running make sysent in the same directory.\n" > sysarg
  96                 printf " */\n\n" > sysarg
  97                 printf "#ifndef %s\n", sysproto_h > sysarg
  98                 printf "#define\t%s\n\n", sysproto_h > sysarg
  99                 printf "#include <sys/select.h>\n\n" > sysarg
 100                 printf "#include <sys/signal.h>\n\n" > sysarg
 101                 printf "#include <sys/acl.h>\n\n" > sysarg
 102                 printf "#include <sys/msgport.h>\n\n" > sysarg
 103                 printf "#include <sys/sysmsg.h>\n\n" > sysarg
 104                 printf "#include <sys/syslink.h>\n\n" > sysarg
 105                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 106                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 107
 108                 printf "\n#ifdef %s\n\n", compat > syscompat
 109                 printf "\n#ifdef %s\n\n", compatdf12 > syscompatdf12
 110
 111                 printf "/*\n * System call names.\n *\n" > sysnames
 112                 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysnames
 113                 printf " *               by running make sysent in the same directory.\n" > sysnames
 114                 printf " */\n\n" > sysnames
 115                 printf "const char *%s[] = {\n", namesname > sysnames
 116
 117                 printf "/*\n * System call numbers.\n *\n" > syshdr
 118                 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syshdr
 119                 printf " *               by running make sysent in the same directory.\n" > syshdr
 120                 printf " */\n\n" > syshdr
 121
 122                 printf "# DragonFly system call names.\n" > sysmk
 123                 printf "# DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysmk
 124                 printf "#               by running make sysent in the same directory.\n" > sysmk
 125                 printf "MIASM = " > sysmk
 126
 127                 printf "/*\n * System call hiders.\n *\n" > syshide
 128                 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syshide
 129                 printf " *               by running make sysent in the same directory.\n" > syshide
 130                 printf " */\n\n" > syshide
 131
 132                 printf "/*\n * Union of syscall args for messaging.\n *\n" > sysun
 133                 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysun
 134                 printf " *               by running make sysent in the same directory.\n" > sysun
 135                 printf " */\n\n" > sysun
 136                 printf "union sysunion {\n" > sysun
 137                 printf "#ifdef _KERNEL /* header only applies in kernel */\n" > sysun
 138                 printf "\tstruct\tlwkt_msg lmsg;\n" > sysun
 139                 printf "\tstruct\tsysmsg sysmsg;\n" > sysun
 140                 printf "#endif\n" > sysun
 141
 142                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 143                 printf "struct sysent %s[] = {\n",switchname > sysent
 144
 145                 printf "\n#ifdef _KERNEL\n\n" > sysdcl
 146                 printf "\n#ifdef _KERNEL\n\n" > syscompatdcl
 147                 printf "\n#ifdef _KERNEL\n\n" > syscompatdcldf12
 148         }
 149         NF == 0 || $1 ~ /^;/ {
 150                 next
 151         }
 152         $1 ~ /^#[       ]*include/ {
 153                 print > sysinc
 154                 next
 155         }
 156         $1 ~ /^#[       ]*if/ {
 157                 print > sysent
 158                 print > sysdcl
 159                 print > sysarg
 160                 print > syscompat
 161                 print > syscompatdf12
 162                 print > sysnames
 163                 print > syshide
 164                 print > sysun
 165                 savesyscall = syscall
 166                 next
 167         }
 168         $1 ~ /^#[       ]*else/ {
 169                 print > sysent
 170                 print > sysdcl
 171                 print > sysarg
 172                 print > sysun
 173                 print > syscompat
 174                 print > syscompatdf12
 175                 print > sysnames
 176                 print > syshide
 177                 syscall = savesyscall
 178                 next
 179         }
 180         $1 ~ /^#/ {
 181                 print > sysent
 182                 print > sysdcl
 183                 print > sysarg
 184                 print > sysun
 185                 print > syscompat
 186                 print > syscompatdf12
 187                 print > sysnames
 188                 print > syshide
 189                 next
 190         }
 191         syscall != $1 {
 192                 printf "%s: line %d: syscall number out of sync at %d\n",
 193                     infile, NR, syscall
 194                 printf "line is:\n"
 195                 print
 196                 exit 1
 197         }
 198         function align_sysent_comment(column) {
 199                 printf("\t") > sysent
 200                 column = column + 8 - column % 8
 201                 while (column < 56) {
 202                         printf("\t") > sysent
 203                         column = column + 8
 204                 }
 205         }
 206         function parserr(was, wanted) {
 207                 printf "%s: line %d: unexpected %s (expected %s)\n",
 208                     infile, NR, was, wanted
 209                 exit 1
 210         }
 211         function parseline() {
 212                 f=4                     # toss number and type
 213                 argc= 0;
 214                 argssize = "0"
 215                 if ($NF != "}") {
 216                         funcalias=$(NF-2)
 217                         argalias=$(NF-1)
 218                         rettype=$NF
 219                         end=NF-3
 220                 } else {
 221                         funcalias=""
 222                         argalias=""
 223                         rettype="int"
 224                         end=NF
 225                 }
 226                 if ($2 == "NODEF") {
 227                         funcname=$4
 228                         argssize = "AS(" $6 ")"
 229                         return
 230                 }
 231                 if ($f != "{")
 232                         parserr($f, "{")
 233                 f++
 234                 if ($end != "}")
 235                         parserr($end, "}")
 236                 end--
 237                 if ($end != ";")
 238                         parserr($end, ";")
 239                 end--
 240                 if ($end != ")")
 241                         parserr($end, ")")
 242                 end--
 243
 244                 f++     #function return type
 245
 246                 funcname=$f
 247                 usefuncname=$f
 248                 if (funcalias == "")
 249                         funcalias = funcname
 250                 if (argalias == "") {
 251                         argalias = funcname "_args"
 252                         if ($2 == "COMPAT") {
 253                                 argalias = "o" argalias
 254                                 usefuncname = "sys_o" funcname
 255                         }
 256                         if ($2 == "COMPAT_DF12") {
 257                                 argalias = "dfbsd12_" argalias
 258                                 usefuncname = "sys_dfbsd12_" funcname
 259                         }
 260                 }
 261                 f++
 262
 263                 if ($f != "(")
 264                         parserr($f, ")")
 265                 f++
 266
 267                 if (f == end) {
 268                         if ($f != "void")
 269                                 parserr($f, "argument definition")
 270                         return
 271                 }
 272
 273                 while (f <= end) {
 274                         argc++
 275                         argtype[argc]=""
 276                         oldf=""
 277                         while (f < end && $(f+1) != ",") {
 278                                 if (argtype[argc] != "" && oldf != "*")
 279                                         argtype[argc] = argtype[argc]" ";
 280                                 argtype[argc] = argtype[argc]$f;
 281                                 oldf = $f;
 282                                 f++
 283                         }
 284                         if (argtype[argc] == "")
 285                                 parserr($f, "argument definition")
 286                         argname[argc]=$f;
 287                         f += 2;                 # skip name, and any comma
 288                 }
 289                 if (argc != 0)
 290                         argssize = "AS(" argalias ")"
 291         }
 292         {       comment = $4
 293                 if (NF < 7)
 294                         for (i = 5; i <= NF; i++)
 295                                 comment = comment " " $i
 296         }
 297         $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS"  || $2 == "NOPROTO" \
 298             || $2 == "NOIMPL" {
 299                 parseline()
 300                 if ((!nosys || funcname != "nosys") && \
 301                     (funcname != "lkmnosys")) {
 302                         if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") {
 303                                 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 304                                 printf("struct\t%s {\n", argalias) > sysarg
 305                                 printf("#ifdef _KERNEL\n") > sysarg
 306                                 printf("\tstruct sysmsg sysmsg;\n") > sysarg
 307                                 printf("#endif\n") > sysarg
 308                                 for (i = 1; i <= argc; i++)
 309                                         printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n",
 310                                             argtype[i], argname[i],
 311                                             argname[i], argtype[i]) > sysarg
 312                                 printf("};\n") > sysarg
 313                         }
 314                         else if ($2 != "NOARGS" && $2 != "NOPROTO" && \
 315                             $2 != "NODEF") {
 316                                 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 317                                 printf("struct\t%s {\n", argalias) > sysarg
 318                                 printf("#ifdef _KERNEL\n") > sysarg
 319                                 printf("\tstruct sysmsg sysmsg;\n") > sysarg
 320                                 printf("#endif\n") > sysarg
 321                                 printf("\tregister_t dummy;\n") > sysarg
 322                                 printf("};\n") > sysarg
 323                         }
 324                 }
 325                 if (($2 != "NOPROTO" && $2 != "NODEF" && \
 326                     (funcname != "nosys" || !nosys)) || \
 327                     (funcname == "lkmnosys" && !lkmnosys) || \
 328                     funcname == "lkmressys") {
 329                         printf("%s\tsys_%s (struct %s *)",
 330                             rettype, funcname, argalias) > sysdcl
 331                         printf(";\n") > sysdcl
 332                 }
 333                 if (funcname == "nosys")
 334                         nosys = 1
 335                 if (funcname == "lkmnosys")
 336                         lkmnosys = 1
 337                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 338                 column = 8 + 2 + length(argssize) + 15
 339                 if ($2 != "NOIMPL") {
 340                         printf("sys_%s },", funcname) > sysent
 341                         column = column + length(funcname) + 7
 342                 } else {
 343                         printf("sys_%s },", "nosys") > sysent
 344                         column = column + length("nosys") + 7
 345                 }
 346                 align_sysent_comment(column)
 347                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 348                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 349                     funcalias, syscall, funcalias) > sysnames
 350                 if ($2 != "NODEF") {
 351                         printf("#define\t%s%s\t%d\n", syscallprefix,
 352                             funcalias, syscall) > syshdr
 353                         printf(" \\\n\t%s.o", funcalias) > sysmk
 354                 }
 355                 if ($3 != "NOHIDE")
 356                         printf("HIDE_%s(%s)\n", $3, funcname) > syshide
 357                 syscall++
 358                 next
 359         }
 360         $2 == "COMPAT" || $2 == "CPT_NOA" {
 361                 ncompat++
 362                 parseline()
 363                 if (argc != 0 && $2 != "CPT_NOA") {
 364                         printf("#ifdef %s\n", compat) > sysun
 365                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 366                         printf("#endif\n") > sysun
 367                         printf("struct\t%s {\n", argalias) > syscompat
 368                         printf("#ifdef _KERNEL\n") > syscompat
 369                         printf("\tstruct sysmsg sysmsg;\n") > syscompat
 370                         printf("#endif\n") > syscompat
 371                         for (i = 1; i <= argc; i++)
 372                                 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n",
 373                                     argtype[i], argname[i],
 374                                     argname[i], argtype[i]) > syscompat
 375                         printf("};\n") > syscompat
 376                 }
 377                 else if($2 != "CPT_NOA") {
 378                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 379                         printf("struct\t%s {\n", argalias) > sysarg
 380                         printf("#ifdef _KERNEL\n") > sysarg
 381                         printf("\tstruct sysmsg sysmsg;\n") > sysarg
 382                         printf("#endif\n") > sysarg
 383                         printf("\tregister_t dummy;\n") > sysarg
 384                         printf("};\n") > sysarg
 385                 }
 386                 printf("%s\tsys_o%s (struct %s *);\n",
 387                     rettype, funcname, argalias) > syscompatdcl
 388                 printf("\t{ compat(%s,%s) },",
 389                     argssize, funcname) > sysent
 390                 align_sysent_comment(8 + 9 + \
 391                     length(argssize) + 1 + length(funcname) + 4)
 392                 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
 393                 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
 394                     funcalias, syscall, funcalias) > sysnames
 395                 printf("\t\t\t\t/* %d is old %s */\n",
 396                     syscall, funcalias) > syshdr
 397                 if ($3 != "NOHIDE")
 398                         printf("HIDE_%s(%s)\n", $3, funcname) > syshide
 399                 syscall++
 400                 next
 401         }
 402         $2 == "COMPAT_DF12" {
 403                 ncompatdf12++
 404                 parseline()
 405                 if (argc != 0) {
 406                         printf("#ifdef %s\n", compatdf12) > sysun
 407                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 408                         printf("#endif\n") > sysun
 409                         printf("struct\t%s {\n", argalias) > syscompatdf12
 410                         printf("#ifdef _KERNEL\n") > syscompatdf12
 411                         printf("\tstruct sysmsg sysmsg;\n") > syscompatdf12
 412                         printf("#endif\n") > syscompatdf12
 413                         for (i = 1; i <= argc; i++)
 414                                 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n",
 415                                     argtype[i], argname[i],
 416                                     argname[i], argtype[i]) > syscompatdf12
 417                         printf("};\n") > syscompatdf12
 418                 }
 419                 else {
 420                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 421                         printf("struct\t%s {\n", argalias) > sysarg
 422                         printf("#ifdef _KERNEL\n") > sysarg
 423                         printf("\tstruct sysmsg sysmsg;\n") > sysarg
 424                         printf("#endif\n") > sysarg
 425                         printf("\tregister_t dummy;\n") > sysarg
 426                         printf("};\n") > sysarg
 427                 }
 428                 printf("%s\tsys_dfbsd12_%s (struct %s *);\n",
 429                     rettype, funcname, argalias) > syscompatdcldf12
 430                 printf("\t{ compatdf12(%s,%s) },",
 431                     argssize, funcname) > sysent
 432                 align_sysent_comment(8 + 9 + \
 433                     length(argssize) + 1 + length(funcname) + 4)
 434                 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
 435                 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
 436                     funcalias, syscall, funcalias) > sysnames
 437                 printf("\t\t\t\t/* %d is old %s */\n",
 438                     syscall, funcalias) > syshdr
 439                 if ($3 != "NOHIDE")
 440                         printf("HIDE_%s(%s)\n", $3, funcname) > syshide
 441                 syscall++
 442                 next
 443         }
 444         $2 == "LIBCOMPAT" {
 445                 ncompat++
 446                 parseline()
 447                 printf("%s\tsys_o%s();\n", rettype, funcname) > syscompatdcl
 448                 printf("\t{ compat(%s,%s) },",
 449                     argssize, funcname) > sysent
 450                 align_sysent_comment(8 + 9 + \
 451                     length(argssize) + 1 + length(funcname) + 4)
 452                 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
 453                 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
 454                     funcalias, syscall, funcalias) > sysnames
 455                 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n",
 456                     syscallprefix, funcalias, syscall) > syshdr
 457                 printf(" \\\n\t%s.o", funcalias) > sysmk
 458                 if ($3 != "NOHIDE")
 459                         printf("HIDE_%s(%s)\n", $3, funcname) > syshide
 460                 syscall++
 461                 next
 462         }
 463         $2 == "OBSOL" {
 464                 printf("\t{ 0, (sy_call_t *)sys_nosys },") > sysent
 465                 align_sysent_comment(37)
 466                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 467                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 468                     $4, syscall, comment) > sysnames
 469                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 470                     syscall, comment) > syshdr
 471                 if ($3 != "NOHIDE")
 472                         printf("HIDE_%s(%s)\n", $3, $4) > syshide
 473                 syscall++
 474                 next
 475         }
 476         $2 == "UNIMPL" {
 477                 printf("\t{ 0, (sy_call_t *)sys_nosys },\t\t\t/* %d = %s */\n",
 478                     syscall, comment) > sysent
 479                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 480                     syscall, syscall, comment) > sysnames
 481                 if ($3 != "NOHIDE")
 482                         printf("HIDE_%s(%s)\n", $3, $4) > syshide
 483                 syscall++
 484                 next
 485         }
 486         {
 487                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2
 488                 exit 1
 489         }
 490         END {
 491                 printf "\n#define AS(name) ((sizeof(struct name) - sizeof(struct sysmsg)) / sizeof(register_t))\n" > sysinc
 492                 if (ncompat != 0) {
 493                         printf "#include \"opt_compat.h\"\n\n" > syssw
 494                         printf "\n#ifdef %s\n", compat > sysinc
 495                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(sys_,__CONCAT(o,name))\n" > sysinc
 496                         printf "#else\n" > sysinc
 497                         printf "#define compat(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc
 498                         printf "#endif\n" > sysinc
 499                 }
 500
 501                 if (ncompatdf12 != 0) {
 502                         printf "#include \"opt_compatdf12.h\"\n\n" > syssw
 503                         printf "\n#ifdef %s\n", compatdf12 > sysinc
 504                         printf "#define compatdf12(n, name) n, (sy_call_t *)__CONCAT(sys_,__CONCAT(dfbsd12_,name))\n" > sysinc
 505                         printf "#else\n" > sysinc
 506                         printf "#define compatdf12(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc
 507                         printf "#endif\n" > sysinc
 508                 }
 509
 510                 printf("\n#endif /* _KERNEL */\n") > syscompatdcl
 511                 printf("\n#endif /* _KERNEL */\n") > syscompatdcldf12
 512                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 513                 printf("\n#endif /* %s */\n\n", compatdf12) > syscompatdcldf12
 514
 515                 printf("\n") > sysmk
 516                 printf("};\n") > sysent
 517                 printf("};\n") > sysnames
 518                 printf("};\n") > sysun
 519                 printf("\n#endif /* !%s */\n", sysproto_h) > sysdcl
 520                 printf("#undef PAD_\n") > sysdcl
 521                 printf("\n#endif /* _KERNEL */\n") > sysdcl
 522                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 523                     > syshdr
 524         } '
 525
 526 cat $sysinc $sysent >> $syssw
 527 cat $sysarg $syscompat $syscompatdcl $syscompatdf12 $syscompatdcldf12 $sysdcl > $sysproto
 528 cat $sysun > $sysunion