makesyscalls.sh revision 1.63.2.1 1 #! /bin/sh -
2 # $NetBSD: makesyscalls.sh,v 1.63.2.1 2008/03/24 07:16:14 keiichi 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 # sysnames the syscall names file
46 # sysnumhdr the syscall numbers file
47 # syssw the syscall switch file
48 # sysarghdr the syscall argument struct definitions
49 # compatopts those syscall types that are for 'compat' syscalls
50 # switchname the name for the 'struct sysent' we define
51 # namesname the name for the 'const char *[]' we define
52 # constprefix the prefix for the system call constants
53 # registertype the type for register_t
54 # nsysent the size of the sysent table
55 # sys_nosys [optional] name of function called for unsupported
56 # syscalls, if not sys_nosys()
57 # maxsysargs [optiona] the maximum number or arguments
58 #
59 # NOTE THAT THIS makesyscalls.sh DOES NOT SUPPORT 'SYSLIBCOMPAT'.
60
61 # source the config file.
62 sys_nosys="sys_nosys" # default is sys_nosys(), if not specified otherwise
63 maxsysargs=8 # default limit is 8 (32bit) arguments
64 rumpcalls="/dev/null"
65 rumpcallshdr="/dev/null"
66 . ./$1
67
68 # tmp files:
69 sysdcl="sysent.dcl"
70 sysprotos="sys.protos"
71 syscompat_pref="sysent."
72 sysent="sysent.switch"
73 sysnamesbottom="sysnames.bottom"
74
75 trap "rm $sysdcl $sysprotos $sysent $sysnamesbottom" 0
76
77 # Awk program (must support nawk extensions)
78 # Use "awk" at Berkeley, "nawk" or "gawk" elsewhere.
79 awk=${AWK:-awk}
80
81 # Does this awk have a "toupper" function?
82 have_toupper=`$awk 'BEGIN { print toupper("true"); exit; }' 2>/dev/null`
83
84 # If this awk does not define "toupper" then define our own.
85 if [ "$have_toupper" = TRUE ] ; then
86 # Used awk (GNU awk or nawk) provides it
87 toupper=
88 else
89 # Provide our own toupper()
90 toupper='
91 function toupper(str) {
92 _toupper_cmd = "echo "str" |tr a-z A-Z"
93 _toupper_cmd | getline _toupper_str;
94 close(_toupper_cmd);
95 return _toupper_str;
96 }'
97 fi
98
99 # before handing it off to awk, make a few adjustments:
100 # (1) insert spaces around {, }, (, ), *, and commas.
101 # (2) get rid of any and all dollar signs (so that rcs id use safe)
102 #
103 # The awk script will deal with blank lines and lines that
104 # start with the comment character (';').
105
106 sed -e '
107 s/\$//g
108 :join
109 /\\$/{a\
110
111 N
112 s/\\\n//
113 b join
114 }
115 2,${
116 /^#/!s/\([{}()*,]\)/ \1 /g
117 }
118 ' < $2 | $awk "
119 $toupper
120 BEGIN {
121 # to allow nested #if/#else/#endif sets
122 savedepth = 0
123 # to track already processed syscalls
124
125 sysnames = \"$sysnames\"
126 sysprotos = \"$sysprotos\"
127 sysnumhdr = \"$sysnumhdr\"
128 sysarghdr = \"$sysarghdr\"
129 rumpcalls = \"$rumpcalls\"
130 rumpcallshdr = \"$rumpcallshdr\"
131 switchname = \"$switchname\"
132 namesname = \"$namesname\"
133 constprefix = \"$constprefix\"
134 registertype = \"$registertype\"
135 if (!registertype) {
136 registertype = \"register_t\"
137 }
138 nsysent = \"$nsysent\"
139
140 sysdcl = \"$sysdcl\"
141 syscompat_pref = \"$syscompat_pref\"
142 sysent = \"$sysent\"
143 sysnamesbottom = \"$sysnamesbottom\"
144 sys_nosys = \"$sys_nosys\"
145 maxsysargs = \"$maxsysargs\"
146 infile = \"$2\"
147
148 compatopts = \"$compatopts\"
149 "'
150
151 printf "/* \$NetBSD\$ */\n\n" > sysdcl
152 printf "/*\n * System call switch table.\n *\n" > sysdcl
153 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysdcl
154
155 ncompat = split(compatopts,compat)
156 for (i = 1; i <= ncompat; i++) {
157 compat_upper[i] = toupper(compat[i])
158
159 printf "\n#ifdef %s\n", compat_upper[i] > sysent
160 printf "#define %s(func) __CONCAT(%s_,func)\n", compat[i], \
161 compat[i] > sysent
162 printf "#else\n" > sysent
163 printf "#define %s(func) %s\n", compat[i], sys_nosys > sysent
164 printf "#endif\n" > sysent
165 }
166
167 printf "\n#define\ts(type)\tsizeof(type)\n" > sysent
168 printf "#define\tn(type)\t(sizeof(type)/sizeof (%s))\n", registertype > sysent
169 printf "#define\tns(type)\tn(type), s(type)\n\n", registertype > sysent
170 printf "struct sysent %s[] = {\n",switchname > sysent
171
172 printf "/* \$NetBSD\$ */\n\n" > sysnames
173 printf "/*\n * System call names.\n *\n" > sysnames
174 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
175
176 printf "\n/*\n * System call prototypes.\n */\n\n" > sysprotos
177
178 printf "/* \$NetBSD\$ */\n\n" > sysnumhdr
179 printf "/*\n * System call numbers.\n *\n" > sysnumhdr
180 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnumhdr
181
182 printf "/* \$NetBSD\$ */\n\n" > sysarghdr
183 printf "/*\n * System call argument lists.\n *\n" > sysarghdr
184 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarghdr
185
186 printf "/* \$NetBSD\$ */\n\n" > rumpcalls
187 printf "/*\n * System call marshalling for rump.\n *\n" > rumpcalls
188 printf " * DO NOT EDIT-- this file is automatically generated.\n" > rumpcalls
189
190 printf "/* \$NetBSD\$ */\n\n" > rumpcallshdr
191 printf "/*\n * System call protos in rump namespace.\n *\n" > rumpcallshdr
192 printf " * DO NOT EDIT-- this file is automatically generated.\n" > rumpcallshdr
193 }
194 NR == 1 {
195 sub(/ $/, "")
196 printf " * created from%s\n */\n\n", $0 > sysdcl
197 printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"\$NetBSD\$\");\n\n" > sysdcl
198
199 printf " * created from%s\n */\n\n", $0 > sysnames
200 printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"\$NetBSD\$\");\n\n" > sysnames
201
202 printf " * created from%s\n */\n\n", $0 > rumpcalls
203 printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"\$NetBSD\$\");\n\n" > rumpcalls
204 printf "#include <sys/types.h>\n" > rumpcalls
205 printf "#include <sys/param.h>\n" > rumpcalls
206 printf "#include <sys/proc.h>\n" > rumpcalls
207 printf "#include <sys/syscallargs.h>\n" > rumpcalls
208 printf "#include \"rump_syscalls.h\"\n\n" > rumpcalls
209 printf "#if\tBYTE_ORDER == BIG_ENDIAN\n" > rumpcalls
210 printf "#define SPARG(p,k)\t((p)->k.be.datum)\n" > rumpcalls
211 printf "#else /* LITTLE_ENDIAN, I hope dearly */\n" > rumpcalls
212 printf "#define SPARG(p,k)\t((p)->k.le.datum)\n" > rumpcalls
213 printf "#endif\n\n" > rumpcalls
214
215 # System call names are included by userland (kdump(1)), so
216 # hide the include files from it.
217 printf "#if defined(_KERNEL_OPT)\n" > sysnames
218
219 printf "#endif /* _KERNEL_OPT */\n\n" > sysnamesbottom
220 printf "const char *const %s[] = {\n",namesname > sysnamesbottom
221
222 printf " * created from%s\n */\n\n", $0 > sysnumhdr
223
224 printf " * created from%s\n */\n\n", $0 > sysarghdr
225
226 printf " * created from%s\n */\n\n", $0 > rumpcallshdr
227
228 printf "#ifndef _" constprefix "SYSCALL_H_\n" > sysnumhdr
229 printf "#define _" constprefix "SYSCALL_H_\n\n" > sysnumhdr
230 printf "#ifndef _" constprefix "SYSCALLARGS_H_\n" > sysarghdr
231 printf "#define _" constprefix "SYSCALLARGS_H_\n\n" > sysarghdr
232 # Write max number of system call arguments to both headers
233 printf("#define\t%sMAXSYSARGS\t%d\n\n", constprefix, maxsysargs) \
234 > sysnumhdr
235 printf("#define\t%sMAXSYSARGS\t%d\n\n", constprefix, maxsysargs) \
236 > sysarghdr
237 printf "#undef\tsyscallarg\n" > sysarghdr
238 printf "#define\tsyscallarg(x)\t\t\t\t\t\t\t\\\n" > sysarghdr
239 printf "\tunion {\t\t\t\t\t\t\t\t\\\n" > sysarghdr
240 printf "\t\t%s pad;\t\t\t\t\t\t\\\n", registertype > sysarghdr
241 printf "\t\tstruct { x datum; } le;\t\t\t\t\t\\\n" > sysarghdr
242 printf "\t\tstruct { /* LINTED zero array dimension */\t\t\\\n" \
243 > sysarghdr
244 printf "\t\t\tint8_t pad[ /* CONSTCOND */\t\t\t\\\n" > sysarghdr
245 printf "\t\t\t\t(sizeof (%s) < sizeof (x))\t\\\n", \
246 registertype > sysarghdr
247 printf "\t\t\t\t? 0\t\t\t\t\t\\\n" > sysarghdr
248 printf "\t\t\t\t: sizeof (%s) - sizeof (x)];\t\\\n", \
249 registertype > sysarghdr
250 printf "\t\t\tx datum;\t\t\t\t\t\\\n" > sysarghdr
251 printf "\t\t} be;\t\t\t\t\t\t\t\\\n" > sysarghdr
252 printf "\t}\n" > sysarghdr
253 printf("\n#undef check_syscall_args\n") >sysarghdr
254 printf("#define check_syscall_args(call) \\\n" \
255 "\ttypedef char call##_check_args" \
256 "[sizeof (struct call##_args) \\\n" \
257 "\t\t<= %sMAXSYSARGS * sizeof (%s) ? 1 : -1];\n", \
258 constprefix, registertype) >sysarghdr
259 next
260 }
261 NF == 0 || $1 ~ /^;/ {
262 next
263 }
264 $0 ~ /^%%$/ {
265 intable = 1
266 next
267 }
268 $1 ~ /^#[ ]*include/ {
269 print > sysdcl
270 print > sysnames
271 next
272 }
273 $1 ~ /^#/ && !intable {
274 print > sysdcl
275 print > sysnames
276 next
277 }
278 $1 ~ /^#/ && intable {
279 if ($1 ~ /^#[ ]*if/) {
280 savedepth++
281 savesyscall[savedepth] = syscall
282 }
283 if ($1 ~ /^#[ ]*else/) {
284 if (savedepth <= 0) {
285 printf("%s: line %d: unbalanced #else\n", \
286 infile, NR)
287 exit 1
288 }
289 syscall = savesyscall[savedepth]
290 }
291 if ($1 ~ /^#[ ]*endif/) {
292 if (savedepth <= 0) {
293 printf("%s: line %d: unbalanced #endif\n", \
294 infile, NR)
295 exit 1
296 }
297 savedepth--
298 }
299 print > sysent
300 print > sysarghdr
301 print > sysnumhdr
302 print > sysprotos
303 print > sysnamesbottom
304 next
305 }
306 syscall != $1 {
307 printf "%s: line %d: syscall number out of sync at %d\n", \
308 infile, NR, syscall
309 printf "line is:\n"
310 print
311 exit 1
312 }
313 function parserr(was, wanted) {
314 printf "%s: line %d: unexpected %s (expected %s)\n", \
315 infile, NR, was, wanted
316 printf "line is:\n"
317 print
318 exit 1
319 }
320 function parseline() {
321 f=3 # toss number and type
322 if ($2 == "INDIR")
323 sycall_flags="SYCALL_INDIRECT"
324 else
325 sycall_flags="0"
326 if ($NF != "}") {
327 funcalias=$NF
328 end=NF-1
329 } else {
330 funcalias=""
331 end=NF
332 }
333 if ($f == "INDIR") { # allow for "NOARG INDIR"
334 sycall_flags = "SYCALL_INDIRECT | " sycall_flags
335 f++
336 }
337 if ($f == "MPSAFE") { # allow for MP-safe syscalls
338 sycall_flags = "SYCALL_MPSAFE | " sycall_flags
339 f++
340 }
341 if ($f == "RUMP") {
342 rumpable = 1
343 f++
344 } else {
345 rumpable = 0
346 }
347 if ($f ~ /^[a-z0-9_]*$/) { # allow syscall alias
348 funcalias=$f
349 f++
350 }
351 if ($f != "{")
352 parserr($f, "{")
353 f++
354 if ($end != "}")
355 parserr($end, "}")
356 end--
357 if ($end != ";")
358 parserr($end, ";")
359 end--
360 if ($end != ")")
361 parserr($end, ")")
362 end--
363
364 returntype = oldf = "";
365 do {
366 if (returntype != "" && oldf != "*")
367 returntype = returntype" ";
368 returntype = returntype$f;
369 oldf = $f;
370 f++
371 } while (f < (end - 1) && $(f+1) != "(");
372 if (f == (end - 1)) {
373 parserr($f, "function argument definition (maybe \"(\"?)");
374 }
375
376 funcname=$f
377 if (funcalias == "") {
378 funcalias=funcname
379 sub(/^([^_]+_)*sys_/, "", funcalias)
380 }
381 f++
382
383 if ($f != "(")
384 parserr($f, ")")
385 f++
386
387 argc=0;
388 argalign=0;
389 if (f == end) {
390 if ($f != "void")
391 parserr($f, "argument definition")
392 isvarargs = 0;
393 varargc = 0;
394 return
395 }
396
397 # some system calls (open() and fcntl()) can accept a variable
398 # number of arguments. If syscalls accept a variable number of
399 # arguments, they must still have arguments specified for
400 # the remaining argument "positions," because of the way the
401 # kernel system call argument handling works.
402 #
403 # Indirect system calls, e.g. syscall(), are exceptions to this
404 # rule, since they are handled entirely by machine-dependent code
405 # and do not need argument structures built.
406
407 isvarargs = 0;
408 while (f <= end) {
409 if ($f == "...") {
410 f++;
411 isvarargs = 1;
412 varargc = argc;
413 continue;
414 }
415 argc++
416 argtype[argc]=""
417 oldf=""
418 while (f < end && $(f+1) != ",") {
419 if (argtype[argc] != "" && oldf != "*")
420 argtype[argc] = argtype[argc]" ";
421 argtype[argc] = argtype[argc]$f;
422 oldf = $f;
423 f++
424 }
425 if (argtype[argc] == "")
426 parserr($f, "argument definition")
427 if (argtype[argc] == "off_t") {
428 if ((argalign % 2) != 0 &&
429 funcname != "sys_posix_fadvise") # XXX for now
430 parserr($f, "a padding argument")
431 } else {
432 argalign++;
433 }
434 argname[argc]=$f;
435 f += 2; # skip name, and any comma
436 }
437 # must see another argument after varargs notice.
438 if (isvarargs) {
439 if (argc == varargc)
440 parserr($f, "argument definition")
441 } else
442 varargc = argc;
443 }
444
445 function printproto(wrap) {
446 printf("/* syscall: \"%s%s\" ret: \"%s\" args:", wrap, funcalias,
447 returntype) > sysnumhdr
448 for (i = 1; i <= varargc; i++)
449 printf(" \"%s\"", argtype[i]) > sysnumhdr
450 if (isvarargs)
451 printf(" \"...\"") > sysnumhdr
452 printf(" */\n") > sysnumhdr
453 printf("#define\t%s%s%s\t%d\n\n", constprefix, wrap, funcalias,
454 syscall) > sysnumhdr
455
456 # rumpalooza
457 if (!rumpable)
458 return
459
460 if (wrap == "")
461 wrap = "sys"
462 printf("%s rump_%s_%s(", returntype, wrap, funcalias) > rumpcallshdr
463 for (i = 1; i <= argc; i++)
464 printf("%s, ", argtype[i]) > rumpcallshdr
465 printf("int *);\n") > rumpcallshdr
466 }
467
468 function putent(type, compatwrap) {
469 # output syscall declaration for switch table.
470 if (compatwrap == "")
471 compatwrap_ = ""
472 else
473 compatwrap_ = compatwrap "_"
474 if (argc == 0)
475 arg_type = "void";
476 else {
477 arg_type = "struct " compatwrap_ funcname "_args";
478 }
479 proto = "int\t" compatwrap_ funcname "(struct lwp *, const " \
480 arg_type " *, register_t *);\n"
481 if (sysmap[proto] != 1) {
482 sysmap[proto] = 1;
483 print proto > sysprotos;
484 }
485
486 # output syscall switch entry
487 printf("\t{ ") > sysent
488 if (argc == 0) {
489 printf("0, 0, ") > sysent
490 } else {
491 printf("ns(struct %s%s_args), ", compatwrap_, funcname) > sysent
492 }
493 if (compatwrap == "")
494 wfn = "(sy_call_t *)" funcname;
495 else
496 wfn = "(sy_call_t *)" compatwrap "(" funcname ")";
497 printf("%s,\n\t %s },", sycall_flags, wfn) > sysent
498 for (i = 0; i < (33 - length(wfn)) / 8; i++)
499 printf("\t") > sysent
500 printf("/* %d = %s%s */\n", syscall, compatwrap_, funcalias) > sysent
501
502 # output syscall name for names table
503 printf("\t/* %3d */\t\"%s%s\",\n", syscall, compatwrap_, funcalias) \
504 > sysnamesbottom
505
506 # output syscall number of header, if appropriate
507 if (type == "STD" || type == "NOARGS" || type == "INDIR") {
508 # output a prototype, to be used to generate lint stubs in
509 # libc.
510 printproto("")
511 } else if (type == "COMPAT") {
512 # Just define the syscall number with a comment. These
513 # may be used by compatibility stubs in libc.
514 printproto(compatwrap_)
515 }
516
517 # output syscall argument structure, if it has arguments
518 if (argc != 0) {
519 printf("\nstruct %s%s_args", compatwrap_, funcname) > sysarghdr
520 if (type != "NOARGS") {
521 print " {" >sysarghdr;
522 for (i = 1; i <= argc; i++)
523 printf("\tsyscallarg(%s) %s;\n", argtype[i],
524 argname[i]) > sysarghdr
525 printf "}" >sysarghdr;
526 }
527 printf(";\n") > sysarghdr
528 if (type != "NOARGS" && type != "INDIR") {
529 printf("check_syscall_args(%s%s)\n", compatwrap_,
530 funcname) >sysarghdr
531 }
532 }
533
534 # output rump marshalling code if necessary
535 if (!rumpable)
536 return
537
538 printf("%s\nrump_%s(", returntype, funcname) > rumpcalls
539 for (i = 1; i <= argc; i++) {
540 printf("%s %s, ", argtype[i], argname[i]) > rumpcalls
541 }
542 printf("int *error)\n") > rumpcalls
543 printf("{\n\tregister_t retval;\n") > rumpcalls
544 argarg = "NULL"
545 if (argc) {
546 argarg = "&arg"
547 printf("\tstruct %s%s_args arg;\n\n", funcname, compatwrap_) \
548 > rumpcalls
549 for (i = 1; i <= argc; i++) {
550 printf("\tSPARG(&arg, %s) = %s;\n", \
551 argname[i], argname[i]) > rumpcalls
552 }
553 printf("\n") > rumpcalls
554 } else {
555 printf("\n") > rumpcalls
556 }
557 printf("\t*error = %s(curlwp, %s, &retval);\n", funcname, argarg) \
558 > rumpcalls
559 if (returntype != "void")
560 printf("\treturn retval;\n") > rumpcalls
561 printf("}\n\n") > rumpcalls
562 }
563 $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "INDIR" {
564 parseline()
565 putent($2, "")
566 syscall++
567 next
568 }
569 $2 == "OBSOL" || $2 == "UNIMPL" || $2 == "EXCL" || $2 == "IGNORED" {
570 if ($2 == "OBSOL")
571 comment="obsolete"
572 else if ($2 == "EXCL")
573 comment="excluded"
574 else if ($2 == "IGNORED")
575 comment="ignored"
576 else
577 comment="unimplemented"
578 for (i = 3; i <= NF; i++)
579 comment=comment " " $i
580
581 if ($2 == "IGNORED")
582 sys_stub = "(sy_call_t *)nullop";
583 else
584 sys_stub = sys_nosys;
585
586 printf("\t{ 0, 0, 0,\n\t %s },\t\t\t/* %d = %s */\n", \
587 sys_stub, syscall, comment) > sysent
588 printf("\t/* %3d */\t\"#%d (%s)\",\n", syscall, syscall, comment) \
589 > sysnamesbottom
590 if ($2 != "UNIMPL")
591 printf("\t\t\t\t/* %d is %s */\n", syscall, comment) > sysnumhdr
592 syscall++
593 next
594 }
595 {
596 for (i = 1; i <= ncompat; i++) {
597 if ($2 == compat_upper[i]) {
598 parseline();
599 putent("COMPAT", compat[i])
600 syscall++
601 next
602 }
603 }
604 printf("%s: line %d: unrecognized keyword %s\n", infile, NR, $2)
605 exit 1
606 }
607 END {
608 maxsyscall = syscall
609 if (nsysent) {
610 if (syscall > nsysent) {
611 printf("%s: line %d: too many syscalls [%d > %d]\n", infile, NR, syscall, nsysent)
612 exit 1
613 }
614 while (syscall < nsysent) {
615 printf("\t{ 0, 0, 0,\n\t %s },\t\t\t/* %d = filler */\n", \
616 sys_nosys, syscall) > sysent
617 syscall++
618 }
619 }
620 printf("};\n\n") > sysent
621 printf("};\n") > sysnamesbottom
622 printf("#define\t%sMAXSYSCALL\t%d\n", constprefix, maxsyscall) > sysnumhdr
623 if (nsysent)
624 printf("#define\t%sNSYSENT\t%d\n", constprefix, nsysent) > sysnumhdr
625 } '
626
627 cat $sysprotos >> $sysarghdr
628 echo "#endif /* _${constprefix}SYSCALL_H_ */" >> $sysnumhdr
629 echo "#endif /* _${constprefix}SYSCALLARGS_H_ */" >> $sysarghdr
630 cat $sysdcl $sysent > $syssw
631 cat $sysnamesbottom >> $sysnames
632
633 #chmod 444 $sysnames $sysnumhdr $syssw
634