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