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 syscallprefix="SYS_"
  21 switchname="sysent"
  22 namesname="syscallnames"
  23
  24 # tmp files:
  25 sysdcl="sysent.dcl.$$"
  26 syscompat="sysent.compat.$$"
  27 syscompatdf12="sysent.compatdf12.$$"
  28 syscompatdcl="sysent.compatdcl.$$"
  29 syscompatdcldf12="sysent.compatdcldf12.$$"
  30 sysent="sysent.switch.$$"
  31 sysinc="sysinc.switch.$$"
  32 sysarg="sysarg.switch.$$"
  33 sysun="sysunion.switch.$$"
  34
  35 trap "rm $sysdcl $syscompat $syscompatdf12 $syscompatdcl $syscompatdcldf12 $sysent $sysinc $sysarg $sysun" 0
  36
  37 touch $sysdcl $syscompat $syscompatdf12 $syscompatdcl $syscompatdcldf12 $sysent $sysinc $sysarg $sysun
  38
  39 case $# in
  40     0)  echo "Usage: $0 input-file <config-file>" 1>&2
  41         exit 1
  42         ;;
  43 esac
  44
  45 if [ -n "$2" -a -f "$2" ]; then
  46         . $2
  47 fi
  48
  49 sed -e '
  50 s/\$//g
  51 :join
  52         /\\$/{a\
  53
  54         N
  55         s/\\\n//
  56         b join
  57         }
  58 2,${
  59         /^#/!s/\([{}()*,]\)/ \1 /g
  60 }
  61 ' < $1 | awk "
  62         BEGIN {
  63                 sysdcl = \"$sysdcl\"
  64                 sysproto = \"$sysproto\"
  65                 sysproto_h = \"$sysproto_h\"
  66                 syscompat = \"$syscompat\"
  67                 syscompatdf12 = \"$syscompatdf12\"
  68                 syscompatdcl = \"$syscompatdcl\"
  69                 syscompatdcldf12 = \"$syscompatdcldf12\"
  70                 sysent = \"$sysent\"
  71                 syssw = \"$syssw\"
  72                 sysinc = \"$sysinc\"
  73                 sysarg = \"$sysarg\"
  74                 sysun = \"$sysun\"
  75                 sysnames = \"$sysnames\"
  76                 syshdr = \"$syshdr\"
  77                 sysmk = \"$sysmk\"
  78                 compat = \"$compat\"
  79                 compatdf12 = \"$compatdf12\"
  80                 syscallprefix = \"$syscallprefix\"
  81                 switchname = \"$switchname\"
  82                 namesname = \"$namesname\"
  83                 infile = \"$1\"
  84                 "'
  85
  86                 printf "/*\n * System call switch table.\n *\n" > syssw
  87                 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syssw
  88                 printf " *               by running make sysent in the same directory.\n" > syssw
  89                 printf " */\n\n" > syssw
  90
  91                 printf "/*\n * System call prototypes.\n *\n" > sysarg
  92                 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysarg
  93                 printf " *               by running make sysent in the same directory.\n" > sysarg
  94                 printf " */\n\n" > sysarg
  95                 printf "#ifndef %s\n", sysproto_h > sysarg
  96                 printf "#define\t%s\n\n", sysproto_h > sysarg
  97                 printf "#include <sys/select.h>\n\n" > sysarg
  98                 printf "#include <sys/signal.h>\n\n" > sysarg
  99                 printf "#include <sys/acl.h>\n\n" > sysarg
 100                 printf "#include <sys/msgport.h>\n\n" > sysarg
 101                 printf "#include <sys/sysmsg.h>\n\n" > sysarg
 102                 printf "#include <sys/syslink.h>\n\n" > sysarg
 103                 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
 104                 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
 105
 106                 printf "\n#ifdef %s\n\n", compat > syscompat
 107                 printf "\n#ifdef %s\n\n", compatdf12 > syscompatdf12
 108
 109                 printf "/*\n * System call names.\n *\n" > sysnames
 110                 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysnames
 111                 printf " *               by running make sysent in the same directory.\n" > sysnames
 112                 printf " */\n\n" > sysnames
 113                 printf "const char *%s[] = {\n", namesname > sysnames
 114
 115                 printf "/*\n * System call numbers.\n *\n" > syshdr
 116                 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > syshdr
 117                 printf " *               by running make sysent in the same directory.\n" > syshdr
 118                 printf " */\n\n" > syshdr
 119
 120                 printf "# DragonFly system call names.\n" > sysmk
 121                 printf "# DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysmk
 122                 printf "#               by running make sysent in the same directory.\n" > sysmk
 123                 printf "MIASM = " > sysmk
 124
 125                 printf "/*\n * Union of syscall args for messaging.\n *\n" > sysun
 126                 printf " * DO NOT EDIT-- To regenerate this file, edit syscalls.master followed\n" > sysun
 127                 printf " *               by running make sysent in the same directory.\n" > sysun
 128                 printf " */\n\n" > sysun
 129                 printf "union sysunion {\n" > sysun
 130                 printf "#ifdef _KERNEL /* header only applies in kernel */\n" > sysun
 131                 printf "\tstruct\tlwkt_msg lmsg;\n" > sysun
 132                 printf "\tstruct\tsysmsg sysmsg;\n" > sysun
 133                 printf "#endif\n" > sysun
 134
 135                 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
 136                 printf "struct sysent %s[] = {\n",switchname > sysent
 137
 138                 printf "\n#ifdef _KERNEL\n\n" > sysdcl
 139                 printf "\n#ifdef _KERNEL\n\n" > syscompatdcl
 140                 printf "\n#ifdef _KERNEL\n\n" > syscompatdcldf12
 141         }
 142         NF == 0 || $1 ~ /^;/ {
 143                 next
 144         }
 145         $1 ~ /^#[       ]*include/ {
 146                 print > sysinc
 147                 next
 148         }
 149         $1 ~ /^#[       ]*if/ {
 150                 print > sysent
 151                 print > sysdcl
 152                 print > sysarg
 153                 print > syscompat
 154                 print > syscompatdf12
 155                 print > sysnames
 156                 print > sysun
 157                 savesyscall = syscall
 158                 next
 159         }
 160         $1 ~ /^#[       ]*else/ {
 161                 print > sysent
 162                 print > sysdcl
 163                 print > sysarg
 164                 print > sysun
 165                 print > syscompat
 166                 print > syscompatdf12
 167                 print > sysnames
 168                 syscall = savesyscall
 169                 next
 170         }
 171         $1 ~ /^#/ {
 172                 print > sysent
 173                 print > sysdcl
 174                 print > sysarg
 175                 print > sysun
 176                 print > syscompat
 177                 print > syscompatdf12
 178                 print > sysnames
 179                 next
 180         }
 181         syscall != $1 {
 182                 printf "%s: line %d: syscall number out of sync at %d\n",
 183                     infile, NR, syscall
 184                 printf "line is:\n"
 185                 print
 186                 exit 1
 187         }
 188         function align_sysent_comment(column) {
 189                 printf("\t") > sysent
 190                 column = column + 8 - column % 8
 191                 while (column < 56) {
 192                         printf("\t") > sysent
 193                         column = column + 8
 194                 }
 195         }
 196         function parserr(was, wanted) {
 197                 printf "%s: line %d: unexpected %s (expected %s)\n",
 198                     infile, NR, was, wanted
 199                 exit 1
 200         }
 201         function parseline() {
 202                 f=3                     # toss number and type
 203                 argc= 0;
 204                 argssize = "0"
 205                 if ($NF != "}") {
 206                         funcalias=$(NF-2)
 207                         argalias=$(NF-1)
 208                         rettype=$NF
 209                         end=NF-3
 210                 } else {
 211                         funcalias=""
 212                         argalias=""
 213                         rettype="int"
 214                         end=NF
 215                 }
 216                 if ($2 == "NODEF") {
 217                         funcname=$3
 218                         argssize = "AS(" $5 ")"
 219                         return
 220                 }
 221                 if ($f != "{")
 222                         parserr($f, "{")
 223                 f++
 224                 if ($end != "}")
 225                         parserr($end, "}")
 226                 end--
 227                 if ($end != ";")
 228                         parserr($end, ";")
 229                 end--
 230                 if ($end != ")")
 231                         parserr($end, ")")
 232                 end--
 233
 234                 f++     #function return type
 235
 236                 funcname=$f
 237                 usefuncname=$f
 238                 if (funcalias == "")
 239                         funcalias = funcname
 240                 if (argalias == "") {
 241                         argalias = funcname "_args"
 242                         if ($2 == "COMPAT") {
 243                                 argalias = "o" argalias
 244                                 usefuncname = "sys_o" funcname
 245                         }
 246                         if ($2 == "COMPAT_DF12") {
 247                                 argalias = "dfbsd12_" argalias
 248                                 usefuncname = "sys_dfbsd12_" funcname
 249                         }
 250                 }
 251                 f++
 252
 253                 if ($f != "(")
 254                         parserr($f, ")")
 255                 f++
 256
 257                 if (f == end) {
 258                         if ($f != "void")
 259                                 parserr($f, "argument definition")
 260                         return
 261                 }
 262
 263                 while (f <= end) {
 264                         argc++
 265                         argtype[argc]=""
 266                         oldf=""
 267                         while (f < end && $(f+1) != ",") {
 268                                 if (argtype[argc] != "" && oldf != "*")
 269                                         argtype[argc] = argtype[argc]" ";
 270                                 argtype[argc] = argtype[argc]$f;
 271                                 oldf = $f;
 272                                 f++
 273                         }
 274                         if (argtype[argc] == "")
 275                                 parserr($f, "argument definition")
 276                         argname[argc]=$f;
 277                         f += 2;                 # skip name, and any comma
 278                 }
 279                 if (argc != 0)
 280                         argssize = "AS(" argalias ")"
 281         }
 282         {       comment = $3
 283                 if (NF < 6)
 284                         for (i = 4; i <= NF; i++)
 285                                 comment = comment " " $i
 286         }
 287         $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS"  || $2 == "NOPROTO" \
 288             || $2 == "NOIMPL" {
 289                 parseline()
 290                 if ((!nosys || funcname != "nosys") && \
 291                     (funcname != "lkmnosys")) {
 292                         if (argc != 0 && $2 != "NOARGS" && $2 != "NOPROTO") {
 293                                 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 294                                 printf("struct\t%s {\n", argalias) > sysarg
 295                                 printf("#ifdef _KERNEL\n") > sysarg
 296                                 printf("\tstruct sysmsg sysmsg;\n") > sysarg
 297                                 printf("#endif\n") > sysarg
 298                                 for (i = 1; i <= argc; i++)
 299                                         printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n",
 300                                             argtype[i], argname[i],
 301                                             argname[i], argtype[i]) > sysarg
 302                                 printf("};\n") > sysarg
 303                         }
 304                         else if ($2 != "NOARGS" && $2 != "NOPROTO" && \
 305                             $2 != "NODEF") {
 306                                 printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 307                                 printf("struct\t%s {\n", argalias) > sysarg
 308                                 printf("#ifdef _KERNEL\n") > sysarg
 309                                 printf("\tstruct sysmsg sysmsg;\n") > sysarg
 310                                 printf("#endif\n") > sysarg
 311                                 printf("\tregister_t dummy;\n") > sysarg
 312                                 printf("};\n") > sysarg
 313                         }
 314                 }
 315                 if (($2 != "NOPROTO" && $2 != "NODEF" && \
 316                     (funcname != "nosys" || !nosys)) || \
 317                     (funcname == "lkmnosys" && !lkmnosys) || \
 318                     funcname == "lkmressys") {
 319                         printf("%s\tsys_%s (struct %s *)",
 320                             rettype, funcname, argalias) > sysdcl
 321                         printf(";\n") > sysdcl
 322                 }
 323                 if (funcname == "nosys")
 324                         nosys = 1
 325                 if (funcname == "lkmnosys")
 326                         lkmnosys = 1
 327                 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
 328                 column = 8 + 2 + length(argssize) + 15
 329                 if ($2 != "NOIMPL") {
 330                         printf("sys_%s },", funcname) > sysent
 331                         column = column + length(funcname) + 7
 332                 } else {
 333                         printf("sys_%s },", "nosys") > sysent
 334                         column = column + length("nosys") + 7
 335                 }
 336                 align_sysent_comment(column)
 337                 printf("/* %d = %s */\n", syscall, funcalias) > sysent
 338                 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
 339                     funcalias, syscall, funcalias) > sysnames
 340                 if ($2 != "NODEF") {
 341                         printf("#define\t%s%s\t%d\n", syscallprefix,
 342                             funcalias, syscall) > syshdr
 343                         printf(" \\\n\t%s.o", funcalias) > sysmk
 344                 }
 345                 syscall++
 346                 next
 347         }
 348         $2 == "COMPAT" || $2 == "CPT_NOA" {
 349                 ncompat++
 350                 parseline()
 351                 if (argc != 0 && $2 != "CPT_NOA") {
 352                         printf("#ifdef %s\n", compat) > sysun
 353                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 354                         printf("#endif\n") > sysun
 355                         printf("struct\t%s {\n", argalias) > syscompat
 356                         printf("#ifdef _KERNEL\n") > syscompat
 357                         printf("\tstruct sysmsg sysmsg;\n") > syscompat
 358                         printf("#endif\n") > syscompat
 359                         for (i = 1; i <= argc; i++)
 360                                 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n",
 361                                     argtype[i], argname[i],
 362                                     argname[i], argtype[i]) > syscompat
 363                         printf("};\n") > syscompat
 364                 }
 365                 else if($2 != "CPT_NOA") {
 366                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 367                         printf("struct\t%s {\n", argalias) > sysarg
 368                         printf("#ifdef _KERNEL\n") > sysarg
 369                         printf("\tstruct sysmsg sysmsg;\n") > sysarg
 370                         printf("#endif\n") > sysarg
 371                         printf("\tregister_t dummy;\n") > sysarg
 372                         printf("};\n") > sysarg
 373                 }
 374                 printf("%s\tsys_o%s (struct %s *);\n",
 375                     rettype, funcname, argalias) > syscompatdcl
 376                 printf("\t{ compat(%s,%s) },",
 377                     argssize, funcname) > sysent
 378                 align_sysent_comment(8 + 9 + \
 379                     length(argssize) + 1 + length(funcname) + 4)
 380                 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
 381                 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
 382                     funcalias, syscall, funcalias) > sysnames
 383                 printf("\t\t\t\t/* %d is old %s */\n",
 384                     syscall, funcalias) > syshdr
 385                 syscall++
 386                 next
 387         }
 388         $2 == "COMPAT_DF12" {
 389                 ncompatdf12++
 390                 parseline()
 391                 if (argc != 0) {
 392                         printf("#ifdef %s\n", compatdf12) > sysun
 393                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 394                         printf("#endif\n") > sysun
 395                         printf("struct\t%s {\n", argalias) > syscompatdf12
 396                         printf("#ifdef _KERNEL\n") > syscompatdf12
 397                         printf("\tstruct sysmsg sysmsg;\n") > syscompatdf12
 398                         printf("#endif\n") > syscompatdf12
 399                         for (i = 1; i <= argc; i++)
 400                                 printf("\t%s\t%s;\tchar %s_[PAD_(%s)];\n",
 401                                     argtype[i], argname[i],
 402                                     argname[i], argtype[i]) > syscompatdf12
 403                         printf("};\n") > syscompatdf12
 404                 }
 405                 else {
 406                         printf("\tstruct\t%s %s;\n", argalias, usefuncname) > sysun
 407                         printf("struct\t%s {\n", argalias) > sysarg
 408                         printf("#ifdef _KERNEL\n") > sysarg
 409                         printf("\tstruct sysmsg sysmsg;\n") > sysarg
 410                         printf("#endif\n") > sysarg
 411                         printf("\tregister_t dummy;\n") > sysarg
 412                         printf("};\n") > sysarg
 413                 }
 414                 printf("%s\tsys_dfbsd12_%s (struct %s *);\n",
 415                     rettype, funcname, argalias) > syscompatdcldf12
 416                 printf("\t{ compatdf12(%s,%s) },",
 417                     argssize, funcname) > sysent
 418                 align_sysent_comment(8 + 9 + \
 419                     length(argssize) + 1 + length(funcname) + 4)
 420                 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
 421                 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
 422                     funcalias, syscall, funcalias) > sysnames
 423                 printf("\t\t\t\t/* %d is old %s */\n",
 424                     syscall, funcalias) > syshdr
 425                 syscall++
 426                 next
 427         }
 428         $2 == "LIBCOMPAT" {
 429                 ncompat++
 430                 parseline()
 431                 printf("%s\tsys_o%s();\n", rettype, funcname) > syscompatdcl
 432                 printf("\t{ compat(%s,%s) },",
 433                     argssize, funcname) > sysent
 434                 align_sysent_comment(8 + 9 + \
 435                     length(argssize) + 1 + length(funcname) + 4)
 436                 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
 437                 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
 438                     funcalias, syscall, funcalias) > sysnames
 439                 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n",
 440                     syscallprefix, funcalias, syscall) > syshdr
 441                 printf(" \\\n\t%s.o", funcalias) > sysmk
 442                 syscall++
 443                 next
 444         }
 445         $2 == "OBSOL" {
 446                 printf("\t{ 0, (sy_call_t *)sys_nosys },") > sysent
 447                 align_sysent_comment(37)
 448                 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
 449                 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
 450                     $3, syscall, comment) > sysnames
 451                 printf("\t\t\t\t/* %d is obsolete %s */\n",
 452                     syscall, comment) > syshdr
 453                 syscall++
 454                 next
 455         }
 456         $2 == "UNIMPL" {
 457                 printf("\t{ 0, (sy_call_t *)sys_nosys },\t\t\t/* %d = %s */\n",
 458                     syscall, comment) > sysent
 459                 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
 460                     syscall, syscall, comment) > sysnames
 461                 syscall++
 462                 next
 463         }
 464         {
 465                 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2
 466                 exit 1
 467         }
 468         END {
 469                 printf "\n#define AS(name) ((sizeof(struct name) - sizeof(struct sysmsg)) / sizeof(register_t))\n" > sysinc
 470                 if (ncompat != 0) {
 471                         printf "#include \"opt_compat.h\"\n\n" > syssw
 472                         printf "\n#ifdef %s\n", compat > sysinc
 473                         printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(sys_,__CONCAT(o,name))\n" > sysinc
 474                         printf "#else\n" > sysinc
 475                         printf "#define compat(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc
 476                         printf "#endif\n" > sysinc
 477                 }
 478
 479                 if (ncompatdf12 != 0) {
 480                         printf "#ifdef __i386__\n" > syssw
 481                         printf "#include \"opt_compatdf12.h\"\n" > syssw
 482                         printf "#endif\n\n" > syssw
 483                         printf "\n#ifdef %s\n", compatdf12 > sysinc
 484                         printf "#define compatdf12(n, name) n, (sy_call_t *)__CONCAT(sys_,__CONCAT(dfbsd12_,name))\n" > sysinc
 485                         printf "#else\n" > sysinc
 486                         printf "#define compatdf12(n, name) 0, (sy_call_t *)sys_nosys\n" > sysinc
 487                         printf "#endif\n" > sysinc
 488                 }
 489
 490                 printf("\n#endif /* _KERNEL */\n") > syscompatdcl
 491                 printf("\n#endif /* _KERNEL */\n") > syscompatdcldf12
 492                 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
 493                 printf("\n#endif /* %s */\n\n", compatdf12) > syscompatdcldf12
 494
 495                 printf("\n") > sysmk
 496                 printf("};\n") > sysent
 497                 printf("};\n") > sysnames
 498                 printf("};\n") > sysun
 499                 printf("\n#endif /* !%s */\n", sysproto_h) > sysdcl
 500                 printf("#undef PAD_\n") > sysdcl
 501                 printf("\n#endif /* _KERNEL */\n") > sysdcl
 502                 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
 503                     > syshdr
 504         } '
 505
 506 cat $sysinc $sysent >> $syssw
 507 cat $sysarg $syscompat $syscompatdcl $syscompatdf12 $syscompatdcldf12 $sysdcl > $sysproto
 508 cat $sysun > $sysunion