makesyscalls.sh revision 1.63.6.4
1 #! /bin/sh - 2 # $NetBSD: makesyscalls.sh,v 1.63.6.4 2009/01/17 13:29:19 mjf Exp $ 3 # 4 # Copyright (c) 1994, 1996, 2000 Christopher G. Demetriou 5 # All rights reserved. 6 # 7 # Redistribution and use in source and binary forms, with or without 8 # modification, are permitted provided that the following conditions 9 # are met: 10 # 1. Redistributions of source code must retain the above copyright 11 # notice, this list of conditions and the following disclaimer. 12 # 2. Redistributions in binary form must reproduce the above copyright 13 # notice, this list of conditions and the following disclaimer in the 14 # documentation and/or other materials provided with the distribution. 15 # 3. All advertising materials mentioning features or use of this software 16 # must display the following acknowledgement: 17 # This product includes software developed for the NetBSD Project 18 # by Christopher G. Demetriou. 19 # 4. The name of the author may not be used to endorse or promote products 20 # derived from this software without specific prior written permission 21 # 22 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 33 # @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93 34 35 set -e 36 37 case $# in 38 2) ;; 39 *) echo "Usage: $0 config-file input-file" 1>&2 40 exit 1 41 ;; 42 esac 43 44 # the config file sets the following variables: 45 # sysalign check for alignment of off_t 46 # sysnames the syscall names file 47 # sysnumhdr the syscall numbers file 48 # syssw the syscall switch file 49 # sysarghdr the syscall argument struct definitions 50 # compatopts those syscall types that are for 'compat' syscalls 51 # switchname the name for the 'struct sysent' we define 52 # namesname the name for the 'const char *[]' we define 53 # constprefix the prefix for the system call constants 54 # registertype the type for register_t 55 # nsysent the size of the sysent table 56 # sys_nosys [optional] name of function called for unsupported 57 # syscalls, if not sys_nosys() 58 # maxsysargs [optiona] the maximum number or arguments 59 # 60 # NOTE THAT THIS makesyscalls.sh DOES NOT SUPPORT 'SYSLIBCOMPAT'. 61 62 # source the config file. 63 sys_nosys="sys_nosys" # default is sys_nosys(), if not specified otherwise 64 maxsysargs=8 # default limit is 8 (32bit) arguments 65 rumpcalls="/dev/null" 66 rumpcallshdr="/dev/null" 67 . ./$1 68 69 # tmp files: 70 sysdcl="sysent.dcl" 71 sysprotos="sys.protos" 72 syscompat_pref="sysent." 73 sysent="sysent.switch" 74 sysnamesbottom="sysnames.bottom" 75 76 trap "rm $sysdcl $sysprotos $sysent $sysnamesbottom" 0 77 78 # Awk program (must support nawk extensions) 79 # Use "awk" at Berkeley, "nawk" or "gawk" elsewhere. 80 awk=${AWK:-awk} 81 82 # Does this awk have a "toupper" function? 83 have_toupper=`$awk 'BEGIN { print toupper("true"); exit; }' 2>/dev/null` 84 85 # If this awk does not define "toupper" then define our own. 86 if [ "$have_toupper" = TRUE ] ; then 87 # Used awk (GNU awk or nawk) provides it 88 toupper= 89 else 90 # Provide our own toupper() 91 toupper=' 92 function toupper(str) { 93 _toupper_cmd = "echo "str" |tr a-z A-Z" 94 _toupper_cmd | getline _toupper_str; 95 close(_toupper_cmd); 96 return _toupper_str; 97 }' 98 fi 99 100 # before handing it off to awk, make a few adjustments: 101 # (1) insert spaces around {, }, (, ), *, and commas. 102 # (2) get rid of any and all dollar signs (so that rcs id use safe) 103 # 104 # The awk script will deal with blank lines and lines that 105 # start with the comment character (';'). 106 107 sed -e ' 108 s/\$//g 109 :join 110 /\\$/{a\ 111 112 N 113 s/\\\n// 114 b join 115 } 116 2,${ 117 /^#/!s/\([{}()*,|]\)/ \1 /g 118 } 119 ' < $2 | $awk " 120 $toupper 121 BEGIN { 122 # Create a NetBSD tag that does not get expanded when checking 123 # this script out of CVS. (This part of the awk script is in a 124 # shell double-quoted string, so the backslashes are eaten by 125 # the shell.) 126 tag = \"\$\" \"NetBSD\" \"\$\" 127 128 # to allow nested #if/#else/#endif sets 129 savedepth = 0 130 # to track already processed syscalls 131 132 sysnames = \"$sysnames\" 133 sysprotos = \"$sysprotos\" 134 sysnumhdr = \"$sysnumhdr\" 135 sysarghdr = \"$sysarghdr\" 136 rumpcalls = \"$rumpcalls\" 137 rumpcallshdr = \"$rumpcallshdr\" 138 switchname = \"$switchname\" 139 namesname = \"$namesname\" 140 constprefix = \"$constprefix\" 141 registertype = \"$registertype\" 142 sysalign=\"$sysalign\" 143 if (!registertype) { 144 registertype = \"register_t\" 145 } 146 nsysent = \"$nsysent\" 147 148 sysdcl = \"$sysdcl\" 149 syscompat_pref = \"$syscompat_pref\" 150 sysent = \"$sysent\" 151 sysnamesbottom = \"$sysnamesbottom\" 152 sys_nosys = \"$sys_nosys\" 153 maxsysargs = \"$maxsysargs\" 154 infile = \"$2\" 155 156 compatopts = \"$compatopts\" 157 "' 158 159 printf "/* %s */\n\n", tag > sysdcl 160 printf "/*\n * System call switch table.\n *\n" > sysdcl 161 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysdcl 162 163 ncompat = split(compatopts,compat) 164 for (i = 1; i <= ncompat; i++) { 165 compat_upper[i] = toupper(compat[i]) 166 167 printf "\n#ifdef %s\n", compat_upper[i] > sysent 168 printf "#define %s(func) __CONCAT(%s_,func)\n", compat[i], \ 169 compat[i] > sysent 170 printf "#else\n" > sysent 171 printf "#define %s(func) %s\n", compat[i], sys_nosys > sysent 172 printf "#endif\n" > sysent 173 } 174 175 printf "\n#define\ts(type)\tsizeof(type)\n" > sysent 176 printf "#define\tn(type)\t(sizeof(type)/sizeof (%s))\n", registertype > sysent 177 printf "#define\tns(type)\tn(type), s(type)\n\n", registertype > sysent 178 printf "struct sysent %s[] = {\n",switchname > sysent 179 180 printf "/* %s */\n\n", tag > sysnames 181 printf "/*\n * System call names.\n *\n" > sysnames 182 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames 183 184 printf "\n/*\n * System call prototypes.\n */\n\n" > sysprotos 185 186 printf "/* %s */\n\n", tag > sysnumhdr 187 printf "/*\n * System call numbers.\n *\n" > sysnumhdr 188 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnumhdr 189 190 printf "/* %s */\n\n", tag > sysarghdr 191 printf "/*\n * System call argument lists.\n *\n" > sysarghdr 192 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarghdr 193 194 printf "/* %s */\n\n", tag > rumpcalls 195 printf "/*\n * System call marshalling for rump.\n *\n" > rumpcalls 196 printf " * DO NOT EDIT-- this file is automatically generated.\n" > rumpcalls 197 198 printf "/* %s */\n\n", tag > rumpcallshdr 199 printf "/*\n * System call protos in rump namespace.\n *\n" > rumpcallshdr 200 printf " * DO NOT EDIT-- this file is automatically generated.\n" > rumpcallshdr 201 } 202 NR == 1 { 203 sub(/ $/, "") 204 printf " * created from%s\n */\n\n", $0 > sysdcl 205 printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > sysdcl 206 207 printf " * created from%s\n */\n\n", $0 > sysnames 208 printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > sysnames 209 210 printf " * created from%s\n */\n\n", $0 > rumpcalls 211 printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > rumpcalls 212 printf "#include <sys/types.h>\n" > rumpcalls 213 printf "#include <sys/param.h>\n" > rumpcalls 214 printf "#include <sys/proc.h>\n" > rumpcalls 215 printf "#include <sys/syscallargs.h>\n" > rumpcalls 216 printf "#include \"rump_private.h\"\n\n" > rumpcalls 217 printf "#if\tBYTE_ORDER == BIG_ENDIAN\n" > rumpcalls 218 printf "#define SPARG(p,k)\t((p)->k.be.datum)\n" > rumpcalls 219 printf "#else /* LITTLE_ENDIAN, I hope dearly */\n" > rumpcalls 220 printf "#define SPARG(p,k)\t((p)->k.le.datum)\n" > rumpcalls 221 printf "#endif\n\n" > rumpcalls 222 printf "int rump_enosys(void);\n" > rumpcalls 223 printf "int\nrump_enosys()\n{\n\n\treturn ENOSYS;\n}\n" > rumpcalls 224 225 # System call names are included by userland (kdump(1)), so 226 # hide the include files from it. 227 printf "#if defined(_KERNEL_OPT)\n" > sysnames 228 229 printf "#endif /* _KERNEL_OPT */\n\n" > sysnamesbottom 230 printf "const char *const %s[] = {\n",namesname > sysnamesbottom 231 232 printf " * created from%s\n */\n\n", $0 > sysnumhdr 233 234 printf " * created from%s\n */\n\n", $0 > sysarghdr 235 236 printf " * created from%s\n */\n\n", $0 > rumpcallshdr 237 printf "#ifdef _RUMPKERNEL\n" > rumpcallshdr 238 printf "#error Interface not supported inside rump kernel\n" > rumpcallshdr 239 printf "#endif /* _RUMPKERNEL */\n\n" > rumpcallshdr 240 241 printf "#ifndef _" constprefix "SYSCALL_H_\n" > sysnumhdr 242 printf "#define _" constprefix "SYSCALL_H_\n\n" > sysnumhdr 243 printf "#ifndef _" constprefix "SYSCALLARGS_H_\n" > sysarghdr 244 printf "#define _" constprefix "SYSCALLARGS_H_\n\n" > sysarghdr 245 # Write max number of system call arguments to both headers 246 printf("#define\t%sMAXSYSARGS\t%d\n\n", constprefix, maxsysargs) \ 247 > sysnumhdr 248 printf("#define\t%sMAXSYSARGS\t%d\n\n", constprefix, maxsysargs) \ 249 > sysarghdr 250 printf "#undef\tsyscallarg\n" > sysarghdr 251 printf "#define\tsyscallarg(x)\t\t\t\t\t\t\t\\\n" > sysarghdr 252 printf "\tunion {\t\t\t\t\t\t\t\t\\\n" > sysarghdr 253 printf "\t\t%s pad;\t\t\t\t\t\t\\\n", registertype > sysarghdr 254 printf "\t\tstruct { x datum; } le;\t\t\t\t\t\\\n" > sysarghdr 255 printf "\t\tstruct { /* LINTED zero array dimension */\t\t\\\n" \ 256 > sysarghdr 257 printf "\t\t\tint8_t pad[ /* CONSTCOND */\t\t\t\\\n" > sysarghdr 258 printf "\t\t\t\t(sizeof (%s) < sizeof (x))\t\\\n", \ 259 registertype > sysarghdr 260 printf "\t\t\t\t? 0\t\t\t\t\t\\\n" > sysarghdr 261 printf "\t\t\t\t: sizeof (%s) - sizeof (x)];\t\\\n", \ 262 registertype > sysarghdr 263 printf "\t\t\tx datum;\t\t\t\t\t\\\n" > sysarghdr 264 printf "\t\t} be;\t\t\t\t\t\t\t\\\n" > sysarghdr 265 printf "\t}\n" > sysarghdr 266 printf("\n#undef check_syscall_args\n") >sysarghdr 267 printf("#define check_syscall_args(call) \\\n" \ 268 "\ttypedef char call##_check_args" \ 269 "[sizeof (struct call##_args) \\\n" \ 270 "\t\t<= %sMAXSYSARGS * sizeof (%s) ? 1 : -1];\n", \ 271 constprefix, registertype) >sysarghdr 272 next 273 } 274 NF == 0 || $1 ~ /^;/ { 275 next 276 } 277 $0 ~ /^%%$/ { 278 intable = 1 279 next 280 } 281 $1 ~ /^#[ ]*include/ { 282 print > sysdcl 283 print > sysnames 284 next 285 } 286 $1 ~ /^#/ && !intable { 287 print > sysdcl 288 print > sysnames 289 next 290 } 291 $1 ~ /^#/ && intable { 292 if ($1 ~ /^#[ ]*if/) { 293 savedepth++ 294 savesyscall[savedepth] = syscall 295 } 296 if ($1 ~ /^#[ ]*else/) { 297 if (savedepth <= 0) { 298 printf("%s: line %d: unbalanced #else\n", \ 299 infile, NR) 300 exit 1 301 } 302 syscall = savesyscall[savedepth] 303 } 304 if ($1 ~ /^#[ ]*endif/) { 305 if (savedepth <= 0) { 306 printf("%s: line %d: unbalanced #endif\n", \ 307 infile, NR) 308 exit 1 309 } 310 savedepth-- 311 } 312 print > sysent 313 print > sysarghdr 314 print > sysnumhdr 315 print > sysprotos 316 print > sysnamesbottom 317 next 318 } 319 syscall != $1 { 320 printf "%s: line %d: syscall number out of sync at %d\n", \ 321 infile, NR, syscall 322 printf "line is:\n" 323 print 324 exit 1 325 } 326 function parserr(was, wanted) { 327 printf "%s: line %d: unexpected %s (expected <%s>)\n", \ 328 infile, NR, was, wanted 329 printf "line is:\n" 330 print 331 exit 1 332 } 333 function parseline() { 334 f=3 # toss number and type 335 if ($2 == "INDIR") 336 sycall_flags="SYCALL_INDIRECT" 337 else 338 sycall_flags="0" 339 if ($NF != "}") { 340 funcalias=$NF 341 end=NF-1 342 } else { 343 funcalias="" 344 end=NF 345 } 346 if ($f == "INDIR") { # allow for "NOARG INDIR" 347 sycall_flags = "SYCALL_INDIRECT | " sycall_flags 348 f++ 349 } 350 if ($f == "MODULAR") { # registered at runtime 351 modular = 1 352 f++ 353 } else { 354 modular = 0; 355 } 356 if ($f == "RUMP") { 357 rumpable = 1 358 f++ 359 } else { 360 rumpable = 0 361 } 362 if ($f ~ /^[a-z0-9_]*$/) { # allow syscall alias 363 funcalias=$f 364 f++ 365 } 366 if ($f != "{") 367 parserr($f, "{") 368 f++ 369 if ($end != "}") 370 parserr($end, "}") 371 end-- 372 if ($end != ";") 373 parserr($end, ";") 374 end-- 375 if ($end != ")") 376 parserr($end, ")") 377 end-- 378 379 returntype = oldf = ""; 380 do { 381 if (returntype != "" && oldf != "*") 382 returntype = returntype" "; 383 returntype = returntype$f; 384 oldf = $f; 385 f++ 386 } while ($f != "|" && f < (end-1)) 387 if (f == (end - 1)) { 388 parserr($f, "function argument definition (maybe \"|\"?)"); 389 } 390 f++ 391 392 fprefix=$f 393 f++ 394 if ($f != "|") { 395 parserr($f, "function compat delimiter (maybe \"|\"?)"); 396 } 397 f++ 398 399 fcompat="" 400 if ($f != "|") { 401 fcompat=$f 402 f++ 403 } 404 405 if ($f != "|") { 406 parserr($f, "function name delimiter (maybe \"|\"?)"); 407 } 408 f++ 409 fbase=$f 410 411 funcstdname=fprefix "_" fbase 412 if (fcompat != "") { 413 funcname=fprefix "___" fbase "" fcompat 414 wantrename=1 415 } else { 416 funcname=funcstdname 417 wantrename=0 418 } 419 420 if (funcalias == "") { 421 funcalias=funcname 422 sub(/^([^_]+_)*sys_/, "", funcalias) 423 } 424 f++ 425 426 if ($f != "(") 427 parserr($f, "(") 428 f++ 429 430 argc=0; 431 argalign=0; 432 if (f == end) { 433 if ($f != "void") 434 parserr($f, "argument definition") 435 isvarargs = 0; 436 varargc = 0; 437 return 438 } 439 440 # some system calls (open() and fcntl()) can accept a variable 441 # number of arguments. If syscalls accept a variable number of 442 # arguments, they must still have arguments specified for 443 # the remaining argument "positions," because of the way the 444 # kernel system call argument handling works. 445 # 446 # Indirect system calls, e.g. syscall(), are exceptions to this 447 # rule, since they are handled entirely by machine-dependent code 448 # and do not need argument structures built. 449 450 isvarargs = 0; 451 while (f <= end) { 452 if ($f == "...") { 453 f++; 454 isvarargs = 1; 455 varargc = argc; 456 continue; 457 } 458 argc++ 459 argtype[argc]="" 460 oldf="" 461 while (f < end && $(f+1) != ",") { 462 if (argtype[argc] != "" && oldf != "*") 463 argtype[argc] = argtype[argc]" "; 464 argtype[argc] = argtype[argc]$f; 465 oldf = $f; 466 f++ 467 } 468 if (argtype[argc] == "") 469 parserr($f, "argument definition") 470 if (argtype[argc] == "off_t") { 471 if ((argalign % 2) != 0 && sysalign && 472 funcname != "sys_posix_fadvise") # XXX for now 473 parserr($f, "a padding argument") 474 } else { 475 argalign++; 476 } 477 argname[argc]=$f; 478 f += 2; # skip name, and any comma 479 } 480 # must see another argument after varargs notice. 481 if (isvarargs) { 482 if (argc == varargc) 483 parserr($f, "argument definition") 484 } else 485 varargc = argc; 486 } 487 488 function printproto(wrap) { 489 printf("/* syscall: \"%s%s\" ret: \"%s\" args:", wrap, funcalias, 490 returntype) > sysnumhdr 491 for (i = 1; i <= varargc; i++) 492 printf(" \"%s\"", argtype[i]) > sysnumhdr 493 if (isvarargs) 494 printf(" \"...\"") > sysnumhdr 495 printf(" */\n") > sysnumhdr 496 printf("#define\t%s%s%s\t%d\n\n", constprefix, wrap, funcalias, 497 syscall) > sysnumhdr 498 499 # rumpalooza 500 if (!rumpable) 501 return 502 503 printf("%s rump_%s(", returntype, funcstdname) > rumpcallshdr 504 for (i = 1; i <= argc; i++) 505 printf("%s, ", argtype[i]) > rumpcallshdr 506 printf("int *)") > rumpcallshdr 507 if (wantrename) 508 printf(" __RENAME(rump_%s)", funcname) > rumpcallshdr 509 printf(";\n") > rumpcallshdr 510 } 511 512 function putent(type, compatwrap) { 513 # output syscall declaration for switch table. 514 if (compatwrap == "") 515 compatwrap_ = "" 516 else 517 compatwrap_ = compatwrap "_" 518 if (argc == 0) 519 arg_type = "void"; 520 else { 521 arg_type = "struct " compatwrap_ funcname "_args"; 522 } 523 proto = "int\t" compatwrap_ funcname "(struct lwp *, const " \ 524 arg_type " *, register_t *);\n" 525 if (sysmap[proto] != 1) { 526 sysmap[proto] = 1; 527 print proto > sysprotos; 528 } 529 530 # output syscall switch entry 531 printf("\t{ ") > sysent 532 if (argc == 0) { 533 printf("0, 0, ") > sysent 534 } else { 535 printf("ns(struct %s%s_args), ", compatwrap_, funcname) > sysent 536 } 537 if (modular) 538 wfn = "(sy_call_t *)sys_nomodule"; 539 else if (compatwrap == "") 540 wfn = "(sy_call_t *)" funcname; 541 else 542 wfn = "(sy_call_t *)" compatwrap "(" funcname ")"; 543 printf("%s,\n\t %s },", sycall_flags, wfn) > sysent 544 for (i = 0; i < (33 - length(wfn)) / 8; i++) 545 printf("\t") > sysent 546 printf("/* %d = %s%s */\n", syscall, compatwrap_, funcalias) > sysent 547 548 # output syscall name for names table 549 printf("\t/* %3d */\t\"%s%s\",\n", syscall, compatwrap_, funcalias) \ 550 > sysnamesbottom 551 552 # output syscall number of header, if appropriate 553 if (type == "STD" || type == "NOARGS" || type == "INDIR") { 554 # output a prototype, to be used to generate lint stubs in 555 # libc. 556 printproto("") 557 } else if (type == "COMPAT") { 558 # Just define the syscall number with a comment. These 559 # may be used by compatibility stubs in libc. 560 printproto(compatwrap_) 561 } 562 563 # output syscall argument structure, if it has arguments 564 if (argc != 0) { 565 printf("\nstruct %s%s_args", compatwrap_, funcname) > sysarghdr 566 if (type != "NOARGS") { 567 print " {" >sysarghdr; 568 for (i = 1; i <= argc; i++) 569 printf("\tsyscallarg(%s) %s;\n", argtype[i], 570 argname[i]) > sysarghdr 571 printf "}" >sysarghdr; 572 } 573 printf(";\n") > sysarghdr 574 if (type != "NOARGS" && type != "INDIR") { 575 printf("check_syscall_args(%s%s)\n", compatwrap_, 576 funcname) >sysarghdr 577 } 578 } 579 580 # output rump marshalling code if necessary 581 if (!rumpable) 582 return 583 584 # need a local prototype, we export the re-re-named one in .h 585 printf("\n%s rump_%s(", returntype, funcname) > rumpcalls 586 for (i = 1; i <= argc; i++) { 587 printf("%s, ", argtype[i]) > rumpcalls 588 } 589 printf("int *);") > rumpcalls 590 591 printf("\n%s\nrump_%s(", returntype, funcname) > rumpcalls 592 for (i = 1; i <= argc; i++) { 593 printf("%s %s, ", argtype[i], argname[i]) > rumpcalls 594 } 595 printf("int *error)\n") > rumpcalls 596 printf("{\n\tregister_t retval = 0;\n") > rumpcalls 597 598 argarg = "NULL" 599 if (argc) { 600 argarg = "&arg" 601 printf("\tstruct %s%s_args arg;\n\n", funcname, compatwrap_) \ 602 > rumpcalls 603 for (i = 1; i <= argc; i++) { 604 printf("\tSPARG(&arg, %s) = %s;\n", \ 605 argname[i], argname[i]) > rumpcalls 606 } 607 printf("\n") > rumpcalls 608 } else { 609 printf("\n") > rumpcalls 610 } 611 printf("\t*error = %s(curlwp, %s, &retval);\n", funcname, argarg) \ 612 > rumpcalls 613 printf("\tif (*error)\n\t\tretval = -1;\n") > rumpcalls 614 if (returntype != "void") 615 printf("\treturn retval;\n") > rumpcalls 616 printf("}\n") > rumpcalls 617 printf("__weak_alias(%s,rump_enosys);\n", funcname) > rumpcalls 618 } 619 $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "INDIR" { 620 parseline() 621 putent($2, "") 622 syscall++ 623 next 624 } 625 $2 == "OBSOL" || $2 == "UNIMPL" || $2 == "EXCL" || $2 == "IGNORED" { 626 if ($2 == "OBSOL") 627 comment="obsolete" 628 else if ($2 == "EXCL") 629 comment="excluded" 630 else if ($2 == "IGNORED") 631 comment="ignored" 632 else 633 comment="unimplemented" 634 for (i = 3; i <= NF; i++) 635 comment=comment " " $i 636 637 if ($2 == "IGNORED") 638 sys_stub = "(sy_call_t *)nullop"; 639 else 640 sys_stub = sys_nosys; 641 642 printf("\t{ 0, 0, 0,\n\t %s },\t\t\t/* %d = %s */\n", \ 643 sys_stub, syscall, comment) > sysent 644 printf("\t/* %3d */\t\"#%d (%s)\",\n", syscall, syscall, comment) \ 645 > sysnamesbottom 646 if ($2 != "UNIMPL") 647 printf("\t\t\t\t/* %d is %s */\n", syscall, comment) > sysnumhdr 648 syscall++ 649 next 650 } 651 { 652 for (i = 1; i <= ncompat; i++) { 653 if ($2 == compat_upper[i]) { 654 parseline(); 655 putent("COMPAT", compat[i]) 656 syscall++ 657 next 658 } 659 } 660 printf("%s: line %d: unrecognized keyword %s\n", infile, NR, $2) 661 exit 1 662 } 663 END { 664 maxsyscall = syscall 665 if (nsysent) { 666 if (syscall > nsysent) { 667 printf("%s: line %d: too many syscalls [%d > %d]\n", infile, NR, syscall, nsysent) 668 exit 1 669 } 670 while (syscall < nsysent) { 671 printf("\t{ 0, 0, 0,\n\t %s },\t\t\t/* %d = filler */\n", \ 672 sys_nosys, syscall) > sysent 673 syscall++ 674 } 675 } 676 printf("};\n\n") > sysent 677 printf("};\n") > sysnamesbottom 678 printf("#define\t%sMAXSYSCALL\t%d\n", constprefix, maxsyscall) > sysnumhdr 679 if (nsysent) 680 printf("#define\t%sNSYSENT\t%d\n", constprefix, nsysent) > sysnumhdr 681 } ' 682 683 cat $sysprotos >> $sysarghdr 684 echo "#endif /* _${constprefix}SYSCALL_H_ */" >> $sysnumhdr 685 echo "#endif /* _${constprefix}SYSCALLARGS_H_ */" >> $sysarghdr 686 cat $sysdcl $sysent > $syssw 687 cat $sysnamesbottom >> $sysnames 688 689 #chmod 444 $sysnames $sysnumhdr $syssw 690
Indexes created Sun Oct 12 02:09:55 GMT 2025