makesyscalls.sh revision 1.187 1 # $NetBSD: makesyscalls.sh,v 1.187 2023/07/28 18:19:01 christos Exp $
2 #
3 # Copyright (c) 1994, 1996, 2000 Christopher G. Demetriou
4 # All rights reserved.
5 #
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions
8 # are met:
9 # 1. Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer.
11 # 2. Redistributions in binary form must reproduce the above copyright
12 # notice, this list of conditions and the following disclaimer in the
13 # documentation and/or other materials provided with the distribution.
14 # 3. All advertising materials mentioning features or use of this software
15 # must display the following acknowledgement:
16 # This product includes software developed for the NetBSD Project
17 # by Christopher G. Demetriou.
18 # 4. The name of the author may not be used to endorse or promote products
19 # derived from this software without specific prior written permission
20 #
21 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31
32 # @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93
33
34 set -e
35
36 case $# in
37 2) ;;
38 *) echo "Usage: $0 config-file input-file" 1>&2
39 exit 1
40 ;;
41 esac
42
43 # the config file sets the following variables:
44 # sysalign check for alignment of off_t/dev_t/time_t
45 # sysnames the syscall names file
46 # sysnumhdr the syscall numbers file
47 # syssw the syscall switch file
48 # sysautoload the syscall autoload definitions file
49 # sysarghdr the syscall argument struct definitions
50 # sysarghdrextra extra stuff dumped into sysarghdr
51 # systrace the dtrace definitions
52 # compatopts those syscall types that are for 'compat' syscalls
53 # switchname the name for the 'struct sysent' we define
54 # namesname the name for the 'const char *[]' we define
55 # constprefix the prefix for the system call constants
56 # emulname the emulation name
57 # registertype the type for register_t
58 # nsysent the size of the sysent table
59 # sys_nosys [optional] name of function called for unsupported
60 # syscalls, if not sys_nosys()
61 # maxsysargs [optional] the maximum number or arguments
62 # rumpcalls ???
63 # rumpcallshdr ???
64 # rumpsysmap ???
65 #
66 # NOTE THAT THIS makesyscalls.sh DOES NOT SUPPORT 'SYSLIBCOMPAT'.
67
68 # source the config file.
69 sys_nosys="sys_nosys" # default is sys_nosys(), if not specified otherwise
70 maxsysargs=8 # default limit is 8 (32bit) arguments
71 systrace="/dev/null"
72 sysautoload="/dev/null"
73 rumpcalls="/dev/null"
74 rumpcallshdr="/dev/null"
75 rumpsysmap="/dev/null"
76 rumpsysent="rumpsysent.tmp"
77 rumpnoflags="\n\t\t.sy_flags = SYCALL_NOSYS,"
78 rumpnosys="(sy_call_t *)(void *)rumpns_enosys"
79 rumpnomodule="(sy_call_t *)(void *)rumpns_sys_nomodule"
80
81 case $1 in
82 /*) . $1;;
83 *) . ./$1;;
84 esac
85
86 errmsg()
87 {
88 fail=true;
89 printf '%s: %s\n' "$0" "$*" >&2
90 }
91
92 addsuffix()
93 {
94 if [ "$1" = "/dev/null" -o -z "$2" ]; then
95 echo $1
96 else
97 echo $1.$2
98 fi
99 }
100
101 fail=false
102 case "${nsysent:-0}" in
103 *[!0-9]*) errmsg "Non numeric value for nsysent:" "${nsysent}";;
104 esac
105 case "${maxsysargs:-0}" in
106 *[!0-9]*) errmsg "Non numeric value for maxsysargs:" "${maxsysargs}";;
107 esac
108 $fail && exit 1
109
110 # tmp files:
111 sysautoloadbottom=$(addsuffix $sysautoload "bottom")
112 sysdcl="sysent.dcl"
113 sysprotos="sys.protos"
114 syscompat_pref="sysent."
115 sysent="sysent.switch"
116 sysnamesbottom=$(addsuffix $sysnames "bottom")
117 sysnamesfriendly=$(addsuffix $sysnames "friendly")
118 rumptypes="rumphdr.types"
119 rumpprotos="rumphdr.protos"
120 systracetmp="systrace.$$"
121 systraceret="systraceret.$$"
122
123 cleanup() {
124 rm $sysdcl $sysprotos $sysent $sysnamesbottom $sysnamesfriendly $rumpsysent $rumptypes $rumpprotos $systracetmp $systraceret ${sysautoloadbottom#/dev/null}
125 }
126 trap "cleanup" 0
127
128 # Awk program (must support nawk extensions)
129 # Use "awk" at Berkeley, "nawk" or "gawk" elsewhere.
130 awk=${AWK:-awk}
131
132 # Does this awk have a "toupper" function?
133 have_toupper="$($awk 'BEGIN { print toupper("true"); exit; }' 2>/dev/null)"
134
135 # If this awk does not define "toupper" then define our own.
136 if [ "$have_toupper" = TRUE ] ; then
137 # Used awk (GNU awk or nawk) provides it
138 toupper=
139 else
140 # Provide our own toupper()
141 toupper='
142 function toupper(str) {
143 _toupper_cmd = "echo "str" |tr a-z A-Z"
144 _toupper_cmd | getline _toupper_str;
145 close(_toupper_cmd);
146 return _toupper_str;
147 }'
148 fi
149
150 # before handing it off to awk, make a few adjustments:
151 # (1) insert spaces around {, }, (, ), *, |, and commas.
152 # (2) get rid of any and all dollar signs (so that rcs id use safe)
153 #
154 # The awk script will deal with blank lines and lines that
155 # start with the comment character (';').
156
157 sed -e '
158 s/\$//g
159 :join
160 /\\$/{a\
161
162 N
163 s/\\\n//
164 b join
165 }
166 2,${
167 /^#/!s/\([{}()*,|]\)/ \1 /g
168 }
169 ' < $2 | $awk "
170 $toupper
171 BEGIN {
172 # Create a NetBSD tag that does not get expanded when checking
173 # this script out of CVS. (This part of the awk script is in a
174 # shell double-quoted string, so the backslashes are eaten by
175 # the shell.)
176 tag = \"\$\" \"NetBSD\" \"\$\"
177
178 # to allow nested #if/#else/#endif sets
179 savedepth = 0
180 # to track already processed syscalls
181
182 sysnames = \"$sysnames\"
183 sysprotos = \"$sysprotos\"
184 sysnumhdr = \"$sysnumhdr\"
185 sysarghdr = \"$sysarghdr\"
186 sysarghdrextra = \"$sysarghdrextra\"
187 systrace = \"$systrace\"
188 systracetmp = \"$systracetmp\"
189 systraceret = \"$systraceret\"
190 sysautoload = \"$sysautoload\"
191 sysautoloadbottom = \"$sysautoloadbottom\"
192 rumpcalls = \"$rumpcalls\"
193 rumpcallshdr = \"$rumpcallshdr\"
194 rumpsysent = \"$rumpsysent\"
195 rumpsysmap = \"$rumpsysmap\"
196 switchname = \"$switchname\"
197 namesname = \"$namesname\"
198 constprefix = \"$constprefix\"
199 emulname = \"$emulname\"
200 registertype = \"$registertype\"
201 sysalign=\"$sysalign\"
202 if (!registertype) {
203 registertype = \"register_t\"
204 }
205 nsysent = ${nsysent:-0}
206
207 sysdcl = \"$sysdcl\"
208 syscompat_pref = \"$syscompat_pref\"
209 sysent = \"$sysent\"
210 sysnamesbottom = \"$sysnamesbottom\"
211 sysnamesfriendly = \"$sysnamesfriendly\"
212 rumpprotos = \"$rumpprotos\"
213 rumptypes = \"$rumptypes\"
214 sys_nosys = \"$sys_nosys\"
215 maxsysargs = ${maxsysargs:-8}
216 rumpnoflags=\"$rumpnoflags\"
217 rumpnosys=\"$rumpnosys\"
218 rumpnomodule=\"$rumpnomodule\"
219 infile = \"$2\"
220
221 compatopts = \"$compatopts\"
222 "'
223
224 if (rumpcalls != "/dev/null")
225 haverumpcalls = 1
226
227 printf "/* %s */\n\n", tag > sysdcl
228 printf "/*\n * System call switch table.\n *\n" > sysdcl
229 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysdcl
230
231 ncompat = split(compatopts,compat)
232 for (i = 1; i <= ncompat; i++) {
233 compat_upper[i] = toupper(compat[i])
234
235 printf "\n#ifdef %s\n", compat_upper[i] > sysent
236 printf "#define %s(func) __CONCAT(%s_,func)\n", compat[i], \
237 compat[i] > sysent
238 printf "#else\n" > sysent
239 printf "#define %s(func) %s\n", compat[i], sys_nosys > sysent
240 printf "#endif\n" > sysent
241 }
242
243 printf "\n#define\ts(type)\tsizeof(type)\n" > sysent
244 printf "#define\tn(type)\t(sizeof(type)/sizeof (%s))\n", registertype > sysent
245 printf "#define\tns(type)\t.sy_narg = n(type), .sy_argsize = s(type)\n\n", registertype > sysent
246 printf "struct sysent %s[] = {\n",switchname > sysent
247
248 printf "/* %s */\n\n", tag > sysnames
249 printf "/*\n * System call names.\n *\n" > sysnames
250 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
251
252 printf "\n/*\n * System call prototypes.\n */\n\n" > sysprotos
253 if (haverumpcalls)
254 printf("#ifndef RUMP_CLIENT\n") > sysprotos
255
256 printf "/* %s */\n\n", tag > sysnumhdr
257 printf "/*\n * System call numbers.\n *\n" > sysnumhdr
258 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnumhdr
259
260 printf "/* %s */\n\n", tag > sysarghdr
261 printf "/*\n * System call argument lists.\n *\n" > sysarghdr
262 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarghdr
263
264 printf "/* %s */\n\n", tag > sysautoload
265 printf "/*\n * System call autoload table.\n *\n" > sysautoload
266 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysautoload
267
268 printf "/* %s */\n\n", tag > rumpcalls
269 printf "/*\n * System call vector and marshalling for rump.\n *\n" > rumpcalls
270 printf " * DO NOT EDIT-- this file is automatically generated.\n" > rumpcalls
271
272 printf "/* %s */\n\n", tag > rumpcallshdr
273 printf "/*\n * System call protos in rump namespace.\n *\n" > rumpcallshdr
274 printf " * DO NOT EDIT-- this file is automatically generated.\n" > rumpcallshdr
275
276 printf "/* %s */\n\n", tag > systrace
277 printf "/*\n * System call argument to DTrace register array conversion.\n *\n" > systrace
278 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
279 }
280 NR == 1 {
281 sub(/ $/, "")
282 printf " * created from%s\n */\n\n", $0 > sysdcl
283 printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > sysdcl
284
285 printf " * created from%s\n */\n\n", $0 > sysnames
286 printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > sysnames
287
288 printf " * created from%s\n */\n\n", $0 > sysautoload
289 printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > sysautoload
290 printf("static struct sc_autoload " emulname \
291 "_syscalls_autoload[] = {\n") > sysautoloadbottom
292
293 printf " * created from%s\n */\n\n", $0 > rumpcalls
294 printf "#ifdef RUMP_CLIENT\n" > rumpcalls
295 printf "#include <rump/rumpuser_port.h>\n" > rumpcalls
296 printf "#endif /* RUMP_CLIENT */\n\n" > rumpcalls
297 printf "#include <sys/param.h>\n\n" > rumpcalls
298 printf "#ifdef __NetBSD__\n" > rumpcalls
299 printf "#include <sys/cdefs.h>\n__KERNEL_RCSID(0, \"%s\");\n\n", tag > rumpcalls
300
301 printf "#include <sys/fstypes.h>\n" > rumpcalls
302 printf "#include <sys/proc.h>\n" > rumpcalls
303 printf "#endif /* __NetBSD__ */\n\n" > rumpcalls
304 printf "#ifdef RUMP_CLIENT\n" > rumpcalls
305 printf "#include <errno.h>\n" > rumpcalls
306 printf "#include <stdint.h>\n" > rumpcalls
307 printf "#include <stdlib.h>\n" > rumpcalls
308 printf "#include <string.h>\n\n" > rumpcalls
309 printf "#include <srcsys/syscall.h>\n" > rumpcalls
310 printf "#include <srcsys/syscallargs.h>\n\n" > rumpcalls
311 printf "#include <rump/rumpclient.h>\n\n" > rumpcalls
312 printf "#define rsys_syscall(num, data, dlen, retval)\t\\\n" > rumpcalls
313 printf " rumpclient_syscall(num, data, dlen, retval)\n" > rumpcalls
314 printf "#define rsys_seterrno(error) errno = error\n" > rumpcalls
315 printf "#else\n" > rumpcalls
316 printf "#include <sys/syscall.h>\n" > rumpcalls
317 printf "#include <sys/syscallargs.h>\n\n" > rumpcalls
318 printf "#include <sys/syscallvar.h>\n\n" > rumpcalls
319 printf "#include <rump-sys/kern.h>\n\n" > rumpcalls
320 printf "#include <rump/rumpuser.h>\n" > rumpcalls
321 printf "#define rsys_syscall(num, data, dlen, retval)\t\\\n" > rumpcalls
322 printf " rump_syscall(num, data, dlen, retval)\n\n" > rumpcalls
323 printf "#define rsys_seterrno(error) rumpuser_seterrno(error)\n" \
324 > rumpcalls
325 printf "#endif\n\n" > rumpcalls
326
327 printf "#ifndef RUMP_KERNEL_IS_LIBC\n" > rumpcalls
328 printf "#define RUMP_SYS_COMPAT\n" > rumpcalls
329 printf "#endif\n\n" > rumpcalls
330
331 printf "#if\tBYTE_ORDER == BIG_ENDIAN\n" > rumpcalls
332 printf "#define SPARG(p,k)\t((p)->k.be.datum)\n" > rumpcalls
333 printf "#else /* LITTLE_ENDIAN, I hope dearly */\n" > rumpcalls
334 printf "#define SPARG(p,k)\t((p)->k.le.datum)\n" > rumpcalls
335 printf "#endif\n\n" > rumpcalls
336 printf "\nvoid rumpns_sys_nomodule(void);\n" > rumpcalls
337
338 printf "\n#ifndef RUMP_CLIENT\n" > rumpsysent
339 printf "int rumpns_enosys(void);\n" > rumpsysent
340 printf "#define\ts(type)\tsizeof(type)\n" > rumpsysent
341 printf "#define\tn(type)\t(sizeof(type)/sizeof (%s))\n", registertype > rumpsysent
342 printf "#define\tns(type)\tn(type), s(type)\n\n", registertype > rumpsysent
343 printf "struct sysent rump_sysent[] = {\n" > rumpsysent
344
345 # System call names are included by userland (kdump(1)), so
346 # hide the include files from it.
347 printf "#if defined(_KERNEL_OPT)\n" > sysnames
348
349 printf "#else /* _KERNEL_OPT */\n" > sysnamesbottom
350 printf "#include <sys/null.h>\n" > sysnamesbottom
351 printf "#endif /* _KERNEL_OPT */\n\n" > sysnamesbottom
352 printf "const char *const %s[] = {\n",namesname > sysnamesbottom
353 printf "\n\n/* libc style syscall names */\n" > sysnamesfriendly
354 printf "const char *const alt%s[] = {\n", namesname > sysnamesfriendly
355
356 printf " * created from%s\n */\n\n", $0 > sysnumhdr
357 printf "#ifndef _" constprefix "SYSCALL_H_\n" > sysnumhdr
358 printf "#define _" constprefix "SYSCALL_H_\n\n" > sysnumhdr
359
360 printf " * created from%s\n */\n\n", $0 > sysarghdr
361 printf "#ifndef _" constprefix "SYSCALLARGS_H_\n" > sysarghdr
362 printf "#define _" constprefix "SYSCALLARGS_H_\n\n" > sysarghdr
363
364 printf " * created from%s\n */\n\n", $0 > rumpcallshdr
365 printf "#ifndef _RUMP_RUMP_SYSCALLS_H_\n" > rumpcallshdr
366 printf "#define _RUMP_RUMP_SYSCALLS_H_\n\n" > rumpcallshdr
367 printf "#ifdef _KERNEL\n" > rumpcallshdr
368 printf "#error Interface not supported inside kernel\n" > rumpcallshdr
369 printf "#endif /* _KERNEL */\n\n" > rumpcallshdr
370 printf "#include <rump/rump_syscalls_compat.h>\n\n" > rumpcallshdr
371
372 printf "%s", sysarghdrextra > sysarghdr
373 printf "/* Forward declaration */\n" > sysarghdr
374 printf "struct lwp;\n" > sysarghdr
375 printf "\n" > sysarghdr
376
377 # Write max number of system call arguments to both headers
378 printf("#define\t%sMAXSYSARGS\t%d\n\n", constprefix, maxsysargs) \
379 > sysnumhdr
380 printf("#define\t%sMAXSYSARGS\t%d\n\n", constprefix, maxsysargs) \
381 > sysarghdr
382 printf "#undef\tsyscallarg\n" > sysarghdr
383 printf "#define\tsyscallarg(x)\t\t\t\t\t\t\t\\\n" > sysarghdr
384 printf "\tunion {\t\t\t\t\t\t\t\t\\\n" > sysarghdr
385 printf "\t\t%s pad;\t\t\t\t\t\t\\\n", registertype > sysarghdr
386 printf "\t\tstruct { x datum; } le;\t\t\t\t\t\\\n" > sysarghdr
387 printf "\t\tstruct { /* LINTED zero array dimension */\t\t\\\n" \
388 > sysarghdr
389 printf "\t\t\tint8_t pad[ /* CONSTCOND */\t\t\t\\\n" > sysarghdr
390 printf "\t\t\t\t(sizeof (%s) < sizeof (x))\t\\\n", \
391 registertype > sysarghdr
392 printf "\t\t\t\t? 0\t\t\t\t\t\\\n" > sysarghdr
393 printf "\t\t\t\t: sizeof (%s) - sizeof (x)];\t\\\n", \
394 registertype > sysarghdr
395 printf "\t\t\tx datum;\t\t\t\t\t\\\n" > sysarghdr
396 printf "\t\t} be;\t\t\t\t\t\t\t\\\n" > sysarghdr
397 printf "\t}\n" > sysarghdr
398 printf("\n#undef check_syscall_args\n") >sysarghdr
399 printf("#define check_syscall_args(call) /*LINTED*/ \\\n" \
400 "\ttypedef char call##_check_args" \
401 "[sizeof (struct call##_args) \\\n" \
402 "\t\t<= %sMAXSYSARGS * sizeof (%s) ? 1 : -1];\n", \
403 constprefix, registertype) >sysarghdr
404
405 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
406 printf "static void\nsystrace_args(register_t sysnum, const void *params, uintptr_t *uarg, size_t *n_args)\n{\n" > systrace
407 printf "\tintptr_t *iarg = (intptr_t *)uarg;\n" > systrace
408 printf "\tswitch (sysnum) {\n" > systrace
409
410 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
411 printf "\tswitch (sysnum) {\n" > systracetmp
412
413 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
414 printf "\tswitch (sysnum) {\n" > systraceret
415
416 # compat types from syscalls.master. this is slightly ugly,
417 # but given that we have so few compats from over 17 years,
418 # a more complicated solution is not currently warranted.
419 uncompattypes["struct timeval50"] = "struct timeval";
420 uncompattypes["struct timespec50"] = "struct timespec";
421 uncompattypes["struct stat30"] = "struct stat";
422 uncompattypes["struct kevent100"] = "struct kevent";
423
424 next
425 }
426 NF == 0 || $1 ~ /^;/ {
427 next
428 }
429 $0 ~ /^%%$/ {
430 intable = 1
431 next
432 }
433 $1 ~ /^#[ ]*include/ {
434 print > sysdcl
435 print > sysnames
436 print > sysautoload
437 next
438 }
439 $1 ~ /^#/ && !intable {
440 print > sysdcl
441 print > sysnames
442 print > sysautoload
443 next
444 }
445 $1 ~ /^#/ && intable {
446 if ($1 ~ /^#[ ]*if/) {
447 savedepth++
448 savesyscall[savedepth] = syscall
449 }
450 if ($1 ~ /^#[ ]*else/) {
451 if (savedepth <= 0) {
452 printf("%s: line %d: unbalanced #else\n", \
453 infile, NR)
454 exit 1
455 }
456 syscall = savesyscall[savedepth]
457 }
458 if ($1 ~ /^#[ ]*endif/) {
459 if (savedepth <= 0) {
460 printf("%s: line %d: unbalanced #endif\n", \
461 infile, NR)
462 exit 1
463 }
464 savedepth--
465 }
466 print > sysent
467 print > sysarghdr
468 print > sysnumhdr
469 print > sysprotos
470 print > sysautoloadbottom
471 print > sysnamesbottom
472 print > sysnamesfriendly
473 print > systrace
474 print > systracetmp
475 print > systraceret
476
477 # XXX: technically we do not want to have conditionals in rump,
478 # but it is easier to just let the cpp handle them than try to
479 # figure out what we want here in this script
480 print > rumpsysent
481 next
482 }
483 syscall != $1 {
484 printf "%s: line %d: syscall number out of sync at %d\n", \
485 infile, NR, syscall
486 printf "line is:\n"
487 print
488 exit 1
489 }
490 function isarg64(type) {
491 gsub("netbsd32_", "", type);
492 return type == "quad_t" || type == "off_t" \
493 || type == "dev_t" || type == "time_t";
494 }
495 function parserr(was, wanted) {
496 printf "%s: line %d: unexpected %s (expected <%s>)\n", \
497 infile, NR, was, wanted
498 printf "line is:\n"
499 print
500 exit 1
501 }
502 function fillerpsysent(syscall, flags, name, comment) {
503 return sprintf("\t{%s\n\t\t.sy_call = %s,\n\t},\t\t/* %d = filler */",\
504 flags, name, syscall, comment);
505 }
506 function parseline() {
507 f=3 # toss number and type
508 if ($2 == "INDIR")
509 sycall_flags="SYCALL_INDIRECT"
510 else
511 sycall_flags="0"
512 if ($NF != "}") {
513 funcalias=$NF
514 end=NF-1
515 } else {
516 funcalias=""
517 end=NF
518 }
519 if ($f == "INDIR") { # allow for "NOARG INDIR"
520 sycall_flags = "SYCALL_INDIRECT | " sycall_flags
521 f++
522 }
523 if ($f == "MODULAR") { # registered at runtime
524 modular = 1
525 f++
526 modname = $f
527 f++
528 } else {
529 modular = 0;
530 }
531 if ($f == "RUMP") {
532 rumpable = 1
533 f++
534 } else {
535 rumpable = 0
536 }
537 if ($f ~ /^[a-z0-9_]*$/) { # allow syscall alias
538 funcalias=$f
539 f++
540 }
541 if ($f != "{")
542 parserr($f, "{")
543 f++
544 if ($end != "}")
545 parserr($end, "}")
546 end--
547 if ($end != ";")
548 parserr($end, ";")
549 end--
550 if ($end != ")")
551 parserr($end, ")")
552 end--
553
554 returntype = oldf = "";
555 do {
556 if (returntype != "" && oldf != "*")
557 returntype = returntype" ";
558 returntype = returntype$f;
559 oldf = $f;
560 f++
561 } while ($f != "|" && f < (end-1))
562 if (f == (end - 1)) {
563 parserr($f, "function argument definition (maybe \"|\"?)");
564 }
565 f++
566
567 fprefix=$f
568 f++
569 if ($f != "|") {
570 parserr($f, "function compat delimiter (maybe \"|\"?)");
571 }
572 f++
573
574 fcompat=""
575 if ($f != "|") {
576 fcompat=$f
577 f++
578 }
579
580 if ($f != "|") {
581 parserr($f, "function name delimiter (maybe \"|\"?)");
582 }
583 f++
584 fbase=$f
585
586 # pipe is special in how to returns its values.
587 # So just generate it manually if present.
588 if (rumpable == 1 && fbase == "pipe") {
589 rumpable = 0;
590 rumphaspipe = 1;
591 }
592
593 if (fcompat != "") {
594 funcname=fprefix "___" fbase "" fcompat
595 } else {
596 funcname=fprefix "_" fbase
597 }
598 if (isarg64(returntype)) {
599 if (sycall_flags == "0")
600 sycall_flags = "SYCALL_RET_64";
601 else
602 sycall_flags = "SYCALL_RET_64 | " sycall_flags;
603 }
604
605 if (funcalias == "") {
606 funcalias=funcname
607 sub(/^([^_]+_)*sys_/, "", funcalias)
608 realname=fbase
609 rumpfname=realname "" fcompat
610 } else {
611 realname=funcalias
612 rumpfname=realname
613 }
614
615 f++
616
617 if ($f != "(")
618 parserr($f, "(")
619 f++
620
621 argc=0;
622 argalign=0;
623 if (f == end) {
624 if ($f != "void")
625 parserr($f, "argument definition")
626 isvarargs = 0;
627 varargc = 0;
628 argtype[0]="void";
629 return
630 }
631
632 # some system calls (open() and fcntl()) can accept a variable
633 # number of arguments. If syscalls accept a variable number of
634 # arguments, they must still have arguments specified for
635 # the remaining argument "positions," because of the way the
636 # kernel system call argument handling works.
637 #
638 # Indirect system calls, e.g. syscall(), are exceptions to this
639 # rule, since they are handled entirely by machine-dependent code
640 # and do not need argument structures built.
641
642 isvarargs = 0;
643 args64 = 0;
644 ptr = 0;
645 while (f <= end) {
646 if ($f == "...") {
647 f++;
648 isvarargs = 1;
649 varargc = argc;
650 continue;
651 }
652 argc++
653 argtype[argc]=""
654 oldf=""
655 while (f < end && $(f+1) != ",") {
656 if (argtype[argc] != "" && oldf != "*")
657 argtype[argc] = argtype[argc]" ";
658 argtype[argc] = argtype[argc]$f;
659 oldf = $f;
660 f++
661 }
662 if (argtype[argc] == "")
663 parserr($f, "argument definition")
664 if (argtype[argc] == "off_t" \
665 || argtype[argc] == "dev_t" \
666 || argtype[argc] == "time_t") {
667 if ((argalign % 2) != 0 && sysalign &&
668 funcname != "sys_posix_fadvise") # XXX for now
669 parserr($f, "a padding argument")
670 } else {
671 argalign++;
672 }
673 if (isarg64(argtype[argc])) {
674 if (sycall_flags == "0")
675 sycall_flags = "SYCALL_ARG"argc-1"_64";
676 else
677 sycall_flags = "SYCALL_ARG"argc-1"_64 | " sycall_flags;
678 args64++;
679 }
680 if (index(argtype[argc], "*") != 0 && ptr == 0) {
681 if (sycall_flags == "0")
682 sycall_flags = "SYCALL_ARG_PTR";
683 else
684 sycall_flags = "SYCALL_ARG_PTR | " sycall_flags;
685 ptr = 1;
686 }
687 argname[argc]=$f;
688 f += 2; # skip name, and any comma
689 }
690 if (args64 > 0)
691 sycall_flags = "SYCALL_NARGS64_VAL("args64") | " sycall_flags;
692 # must see another argument after varargs notice.
693 if (isvarargs) {
694 if (argc == varargc)
695 parserr($f, "argument definition")
696 } else
697 varargc = argc;
698 }
699
700 function printproto(wrap) {
701 printf("/* syscall: \"%s%s\" ret: \"%s\" args:", wrap, funcalias,
702 returntype) > sysnumhdr
703 for (i = 1; i <= varargc; i++)
704 printf(" \"%s\"", argtype[i]) > sysnumhdr
705 if (isvarargs)
706 printf(" \"...\"") > sysnumhdr
707 printf(" */\n") > sysnumhdr
708 printf("#define\t%s%s%s\t%d\n\n", constprefix, wrap, funcalias,
709 syscall) > sysnumhdr
710
711 # output entry for syscall autoload table, if modular
712 if (modular) {
713 printf("\t { %s%s%s, \"%s\" },\n", constprefix, wrap,
714 funcalias, modname) > sysautoloadbottom
715 }
716
717
718 # rumpalooza
719 if (!rumpable)
720 return
721
722 # accumulate fbases we have seen. we want the last
723 # occurrence for the default __RENAME()
724 seen = funcseen[realname]
725 funcseen[realname] = rumpfname
726 # special case for mknod as type of last argument changed from
727 # uint32_t to dev_t
728 if ((seen && fbase != "mknod") || (!seen && fbase == "mknod"))
729 return
730
731 printf("%s rump_sys_%s(", returntype, realname) > rumpprotos
732
733 for (i = 1; i < varargc; i++)
734 if (argname[i] != "PAD")
735 printf("%s, ", uncompattype(argtype[i])) > rumpprotos
736
737 if (isvarargs)
738 printf("%s, ...)", uncompattype(argtype[varargc]))>rumpprotos
739 else
740 printf("%s)", uncompattype(argtype[argc])) > rumpprotos
741
742 printf(" __RENAME(RUMP_SYS_RENAME_%s)", toupper(realname))> rumpprotos
743 printf(";\n") > rumpprotos
744
745 # generate forward-declares for types, apart from the
746 # braindead typedef jungle we cannot easily handle here
747 for (i = 1; i <= varargc; i++) {
748 type=uncompattype(argtype[i])
749 sub("const ", "", type)
750 ntype=type
751 sub(" *\\*.*", "", ntype);
752 if (!typeseen[ntype] && \
753 match(type, "struct") && match(type, "\\*")) {
754 typeseen[ntype] = 1
755 printf("%s;\n", ntype) > rumptypes
756 }
757 }
758 }
759
760 function printrumpsysent(insysent, compatwrap_) {
761 if (modular) {
762 fn = rumpnomodule
763 flags = rumpnoflags
764 } else {
765 fn = rumpnosys
766 flags = ""
767 }
768 if (!insysent) {
769 printf("\t{%s\n\t\t.sy_call = %s,\n},\t\t/* %d = %s */\n", \
770 flags, fn, syscall, funcalias) > rumpsysent
771 return
772 }
773
774 printf("\t{") > rumpsysent
775 if (argc != 0) {
776 printf("\n\t\tns(struct %s%s_args),", compatwrap_, funcname) > rumpsysent
777 }
778
779 printf("\n\t\t.sy_call = %s,\n\t},", fn) > rumpsysent
780 printf("\t\t/* %d = %s%s */\n", syscall, compatwrap_, funcalias) > rumpsysent
781 }
782
783 function iscompattype(type) {
784 for (var in uncompattypes) {
785 if (match(type, var)) {
786 return 1
787 }
788 }
789
790 return 0
791 }
792
793 function uncompattype(type) {
794 for (var in uncompattypes) {
795 if (match(type, var)) {
796 sub(var, uncompattypes[var], type)
797 return type
798 }
799 }
800
801 return type
802 }
803
804 function printrumpsysmap(syscall, wfn, funcalias, rumpentry) {
805 printf("%-4d %-22s %-18s %s\n",
806 syscall, wfn, funcalias, rumpentry) > rumpsysmap
807 }
808
809 function fixarray(arg) {
810 iii = index(arg, "[")
811 if (iii == 0) {
812 return arg
813 } else {
814 return substr(arg, 1, iii - 1) "[0]"
815 }
816 }
817
818 function putsystrace(type, compatwrap_) {
819 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
820 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
821 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
822 if (argc > 0) {
823 printf("\t\tswitch(ndx) {\n") > systracetmp
824 printf("\t\tconst struct %s%s_args *p = params;\n", compatwrap_, funcname) > systrace
825 for (i = 1; i <= argc; i++) {
826 arg = argtype[i]
827 sub("__restrict$", "", arg)
828 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
829 if (arg ~ /.*p_t$/ || arg ~ /.*p$/ || arg ~ /.*_t_p$/ ||
830 arg ~ /.*_pointer_t$/)
831 printf("\t\tuarg[%d] = (intptr_t) SCARG(p, %s).i32; /* %s */\n", \
832 i - 1, \
833 argname[i], arg) > systrace
834 else if (index(arg, "*") > 0 || arg == "caddr_t" ||
835 arg ~ /.*_handler_t$/)
836 printf("\t\tuarg[%d] = (intptr_t) SCARG(p, %s); /* %s */\n", \
837 i - 1, \
838 fixarray(argname[i]), arg) > systrace
839 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
840 printf("\t\tuarg[%d] = SCARG(p, %s); /* %s */\n", \
841 i - 1, \
842 argname[i], arg) > systrace
843 else
844 printf("\t\tiarg[%d] = SCARG(p, %s); /* %s */\n", \
845 i - 1, \
846 fixarray(argname[i]), arg) > systrace
847 }
848 printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
849
850 printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
851 printf("\t\t\tp = \"%s\";\n", returntype) > systraceret
852 printf("\t\tbreak;\n") > systraceret
853 }
854 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
855 printf("\t\tbreak;\n") > systracetmp
856 }
857
858 function putent(type, compatwrap) {
859 # output syscall declaration for switch table.
860 if (compatwrap == "")
861 compatwrap_ = ""
862 else
863 compatwrap_ = compatwrap "_"
864 if (argc == 0)
865 arg_type = "void";
866 else {
867 arg_type = "struct " compatwrap_ funcname "_args";
868 }
869 putsystrace(type, compatwrap_)
870 proto = "int\t" compatwrap_ funcname "(struct lwp *, const " \
871 arg_type " *, register_t *);\n"
872 if (sysmap[proto] != 1) {
873 sysmap[proto] = 1;
874 print proto > sysprotos;
875 }
876
877 # output syscall switch entry
878 printf("\t{") > sysent
879 if (argc != 0) {
880 printf("\n\t\tns(struct %s%s_args),", compatwrap_, funcname) > sysent
881 }
882 if (modular) {
883 wfn = "sys_nomodule";
884 idx = int(syscall / 32);
885 bit = 2 ^ (syscall % 32);
886 nomodbits[ idx ] += bit;
887 } else if (compatwrap == "")
888 wfn = funcname;
889 else
890 wfn = compatwrap "(" funcname ")";
891 wfn_cast="(sy_call_t *)" wfn
892 if (sycall_flags != "0")
893 flags = "\n\t\t.sy_flags = " sycall_flags ","
894 else
895 flags = ""
896 printf("%s\n\t\t.sy_call = %s\n\t},", flags, wfn_cast) > sysent
897 printf("\t\t/* %d = %s%s */\n", syscall, compatwrap_, funcalias) > sysent
898
899 # output syscall name for names table
900 printf("\t/* %3d */\t\"%s%s\",\n", syscall, compatwrap_, funcalias) \
901 > sysnamesbottom
902 if (compatwrap_ != "" || fbase == funcalias)
903 printf("\t/* %3d */\tNULL, /* %s%s */\n", syscall, \
904 compatwrap_, funcalias) > sysnamesfriendly
905 else
906 printf("\t/* %3d */\t\"%s%s\",\n", syscall, compatwrap_, \
907 fbase) > sysnamesfriendly
908
909 # output syscall number of header, if appropriate
910 if (type == "STD" || type == "NOARGS" || type == "INDIR" || \
911 type == "NOERR") {
912 # output a prototype, to be used to generate lint stubs in
913 # libc.
914 printproto("")
915 } else if (type == "COMPAT" || type == "EXTERN") {
916 # Just define the syscall number with a comment. These
917 # may be used by compatibility stubs in libc.
918 printproto(compatwrap_)
919 }
920
921 # output syscall argument structure, if it has arguments
922 if (argc != 0) {
923 printf("\n") > sysarghdr
924 if (haverumpcalls && !rumpable)
925 printf("#ifndef RUMP_CLIENT\n") > sysarghdr
926 printf("struct %s%s_args", compatwrap_, funcname) > sysarghdr
927 if (type != "NOARGS") {
928 print " {" >sysarghdr;
929 for (i = 1; i <= argc; i++)
930 printf("\tsyscallarg(%s) %s;\n", argtype[i],
931 argname[i]) > sysarghdr
932 printf "}" >sysarghdr;
933 }
934 printf(";\n") > sysarghdr
935 if (type != "NOARGS" && type != "INDIR") {
936 printf("check_syscall_args(%s%s)\n", compatwrap_,
937 funcname) >sysarghdr
938 }
939 if (haverumpcalls && !rumpable)
940 printf("#endif /* !RUMP_CLIENT */\n") > sysarghdr
941 }
942
943 if (!rumpable) {
944 if (funcname == "sys_pipe" && rumphaspipe == 1) {
945 insysent = 1
946 printrumpsysmap(syscall,
947 funcname, funcalias, "rump_sys_pipe")
948 } else {
949 insysent = 0
950 }
951 } else {
952 insysent = 1
953 }
954 printrumpsysent(insysent, compatwrap_)
955
956 # output rump marshalling code if necessary
957 if (!rumpable) {
958 return
959 }
960
961 printrumpsysmap(syscall, wfn, funcalias, "rump___sysimpl_" rumpfname)
962
963 printf("\n") > rumpcalls
964
965 if (compatwrap)
966 printf("#ifdef RUMP_SYS_COMPAT\n") > rumpcalls
967
968 # need a local prototype, we export the re-re-named one in .h
969 printf("%s rump___sysimpl_%s(", returntype, rumpfname) \
970 > rumpcalls
971 for (i = 1; i < argc; i++) {
972 if (argname[i] != "PAD")
973 printf("%s, ", uncompattype(argtype[i])) > rumpcalls
974 }
975 printf("%s);", uncompattype(argtype[argc])) > rumpcalls
976
977 printf("\n%s\nrump___sysimpl_%s(", returntype, rumpfname) > rumpcalls
978 for (i = 1; i < argc; i++) {
979 if (argname[i] != "PAD")
980 printf("%s %s, ", uncompattype(argtype[i]), \
981 argname[i]) > rumpcalls
982 }
983 printf("%s %s)\n", uncompattype(argtype[argc]), argname[argc]) \
984 > rumpcalls
985 printf("{\n\tregister_t retval[2];\n") > rumpcalls
986 if (returntype != "void") {
987 if (type != "NOERR") {
988 printf("\tint error = 0;\n") > rumpcalls
989 }
990 # assume rumpcalls return only integral types
991 printf("\t%s rv = -1;\n", returntype) > rumpcalls
992 }
993
994 argarg = "NULL"
995 argsize = 0;
996 if (argc) {
997 argarg = "&callarg"
998 argsize = "sizeof(callarg)"
999 printf("\tstruct %s%s_args callarg;\n\n",compatwrap_,funcname) \
1000 > rumpcalls
1001 printf "\tmemset(&callarg, 0, sizeof(callarg));\n" > rumpcalls
1002 for (i = 1; i <= argc; i++) {
1003 if (argname[i] == "PAD") {
1004 printf("\tSPARG(&callarg, %s) = 0;\n", \
1005 argname[i]) > rumpcalls
1006 } else {
1007 if (iscompattype(argtype[i])) {
1008 printf("\tSPARG(&callarg, %s) = " \
1009 "(%s)%s;\n", argname[i], argtype[i], \
1010 argname[i]) > rumpcalls
1011 } else {
1012 printf("\tSPARG(&callarg, %s) = %s;\n",\
1013 argname[i], argname[i]) > rumpcalls
1014 }
1015 }
1016 }
1017 printf("\n") > rumpcalls
1018 } else {
1019 printf("\n") > rumpcalls
1020 }
1021 printf("\t") > rumpcalls
1022 if (returntype != "void" && type != "NOERR")
1023 printf("error = ") > rumpcalls
1024 else if (returntype != "void")
1025 printf("(void)") > rumpcalls
1026 printf("rsys_syscall(%s%s%s, " \
1027 "%s, %s, retval);\n", constprefix, compatwrap_, funcalias, \
1028 argarg, argsize) > rumpcalls
1029 if (type != "NOERR") {
1030 printf("\trsys_seterrno(error);\n") > rumpcalls
1031 printf("\tif (error == 0) {\n") > rumpcalls
1032 indent="\t\t"
1033 ending="\t}\n"
1034 } else {
1035 indent="\t"
1036 ending=""
1037 }
1038 if (returntype != "void") {
1039 printf("%sif (sizeof(%s) > sizeof(register_t))\n", \
1040 indent, returntype) > rumpcalls
1041 printf("%s\trv = *(%s *)retval;\n", \
1042 indent, returntype) > rumpcalls
1043 printf("%selse\n", indent, indent) > rumpcalls
1044 printf("%s\trv = *retval;\n", indent, returntype) > rumpcalls
1045 printf("%s", ending) > rumpcalls
1046 printf("\treturn rv;\n") > rumpcalls
1047 }
1048 printf("}\n") > rumpcalls
1049
1050 printf("#ifdef RUMP_KERNEL_IS_LIBC\n") > rumpcalls
1051
1052 # create the bog-standard, non-renamed public name.
1053 # this way we get e.g. select instead of just __select50
1054 if (fcompat)
1055 printf("__weak_alias(%s,rump___sysimpl_%s);\n", \
1056 fbase, rumpfname) > rumpcalls
1057
1058 printf("__weak_alias(%s,rump___sysimpl_%s);\n", \
1059 funcalias, rumpfname) > rumpcalls
1060 printf("__weak_alias(_%s,rump___sysimpl_%s);\n", \
1061 funcalias, rumpfname) > rumpcalls
1062 printf("__strong_alias(_sys_%s,rump___sysimpl_%s);\n", \
1063 funcalias, rumpfname) >rumpcalls
1064
1065 printf("#endif /* RUMP_KERNEL_IS_LIBC */\n") > rumpcalls
1066
1067 if (compatwrap)
1068 printf("#endif /* RUMP_SYS_COMPAT */\n") > rumpcalls
1069
1070 }
1071 $2 == "STD" || $2 == "NODEF" || $2 == "NOARGS" || $2 == "INDIR" \
1072 || $2 == "NOERR" {
1073 parseline()
1074 putent($2, "")
1075 syscall++
1076 next
1077 }
1078 $2 == "OBSOL" || $2 == "UNIMPL" || $2 == "EXCL" || $2 == "IGNORED" {
1079 if ($2 == "OBSOL")
1080 comment="obsolete"
1081 else if ($2 == "EXCL")
1082 comment="excluded"
1083 else if ($2 == "IGNORED")
1084 comment="ignored"
1085 else
1086 comment="unimplemented"
1087 for (i = 3; i <= NF; i++)
1088 comment=comment " " $i
1089
1090 if ($2 == "IGNORED")
1091 sys_stub = "(sy_call_t *)(void *)nullop";
1092 else
1093 sys_stub = sys_nosys;
1094
1095 print fillerpsysent(syscall, "", sys_stub, comment) > sysent
1096 print fillerpsysent(syscall, rumpnoflags, rumpnosys, comment) > rumpsysent
1097 printf("\t/* %3d */\t\"#%d (%s)\",\n", syscall, syscall, comment) \
1098 > sysnamesbottom
1099 printf("\t/* %3d */\tNULL, /* %s */\n", syscall, comment) \
1100 > sysnamesfriendly
1101 if ($2 != "UNIMPL")
1102 printf("\t\t\t\t/* %d is %s */\n", syscall, comment) > sysnumhdr
1103 syscall++
1104 next
1105 }
1106 $2 == "EXTERN" {
1107 parseline()
1108 putent("EXTERN", "")
1109 syscall++
1110 next
1111 }
1112 {
1113 for (i = 1; i <= ncompat; i++) {
1114 if ($2 == compat_upper[i]) {
1115 parseline();
1116 putent("COMPAT", compat[i])
1117 syscall++
1118 next
1119 }
1120 }
1121 printf("%s: line %d: unrecognized keyword %s\n", infile, NR, $2)
1122 exit 1
1123 }
1124
1125 function sort(arr, n, i, j, t) {
1126 # this is going to be bubble sort because I cannot be bothered to
1127 # write a real sort, this whole script is hopefully going to be
1128 # deprecated before much longer, and performance of a few hundred
1129 # things (even interpreted in awk) should be adequate.
1130 for (i = 1; i <= n; i++) {
1131 for (j = i + 1; j <= n; j++) {
1132 if (arr[j] < arr[i]) {
1133 t = arr[i];
1134 arr[i] = arr[j];
1135 arr[j] = t;
1136 }
1137 }
1138 }
1139 return 0;
1140 }
1141
1142 END {
1143 # output pipe() syscall with its special retval[2] handling
1144 if (rumphaspipe) {
1145 printf("int rump_sys_pipe(int *);\n") > rumpprotos
1146 printf("\nint rump_sys_pipe(int *);\n") > rumpcalls
1147 printf("int\nrump_sys_pipe(int *fd)\n{\n") > rumpcalls
1148 printf("\tregister_t retval[2];\n") > rumpcalls
1149 printf("\tint error = 0;\n") > rumpcalls
1150 printf("\n\terror = rsys_syscall(SYS_pipe, ") > rumpcalls
1151 printf("NULL, 0, retval);\n") > rumpcalls
1152 printf("\tif (error) {\n") > rumpcalls
1153 printf("\t\trsys_seterrno(error);\n") > rumpcalls
1154 printf("\t} else {\n\t\tfd[0] = retval[0];\n") > rumpcalls
1155 printf("\t\tfd[1] = retval[1];\n\t}\n") > rumpcalls
1156 printf("\treturn error ? -1 : 0;\n}\n") > rumpcalls
1157 printf("#ifdef RUMP_KERNEL_IS_LIBC\n") > rumpcalls
1158 printf("__weak_alias(pipe,rump_sys_pipe);\n") > rumpcalls
1159 printf("__weak_alias(_pipe,rump_sys_pipe);\n") > rumpcalls
1160 printf("__strong_alias(_sys_pipe,rump_sys_pipe);\n") > rumpcalls
1161 printf("#endif\n") > rumpcalls
1162 }
1163
1164 # print default rump syscall interfaces
1165 # be sure to generate them in a deterministic order, not awk
1166 # hash order as would happen with a plain "for (var in funcseen)"
1167 numfuncseenvars = 0;
1168 for (var in funcseen) {
1169 funcseenvars[++numfuncseenvars] = var;
1170 }
1171 sort(funcseenvars, numfuncseenvars)
1172 for (i = 1; i <= numfuncseenvars; i++) {
1173 var = funcseenvars[i];
1174 printf("#ifndef RUMP_SYS_RENAME_%s\n", \
1175 toupper(var)) > rumpcallshdr
1176 printf("#define RUMP_SYS_RENAME_%s rump___sysimpl_%s\n", \
1177 toupper(var), funcseen[var]) > rumpcallshdr
1178 printf("#endif\n\n") > rumpcallshdr
1179 }
1180
1181 maxsyscall = syscall
1182
1183 if (nsysent) {
1184 if (syscall > nsysent) {
1185 printf("%s: line %d: too many syscalls [%d > %d]\n", infile, NR, syscall, nsysent)
1186 exit 1
1187 }
1188 while (syscall < nsysent) {
1189 print fillerpsysent(syscall, "", sys_nosys, "filler") > sysent
1190 print fillerpsysent(syscall, rumpnoflags, rumpnosys, "filler") > rumpsysent
1191 printf("\t/* %3d */\t\"# filler\",\n", syscall) \
1192 > sysnamesbottom
1193 printf("\t/* %3d */\tNULL, /* filler */\n", syscall) \
1194 > sysnamesfriendly
1195 syscall++
1196 }
1197 }
1198 printf("};\n") > sysent
1199 printf("\nconst uint32_t %s_nomodbits[] = {\n", switchname) > sysent
1200 printf("};\n") > rumpsysent
1201 printf("\nconst uint32_t rump_sysent_nomodbits[] = {\n") > rumpsysent
1202 for (i = 0; i < syscall / 32; i++) {
1203 printf("\t0x%08x,\t/* syscalls %3d-%3d */\n",
1204 nomodbits[i], i * 32, i * 32 + 31) > sysent
1205 printf("\t0x%08x,\t/* syscalls %3d-%3d */\n",
1206 nomodbits[i], i * 32, i * 32 + 31) > rumpsysent
1207 }
1208 printf("};\n") > sysent
1209 printf("};\n") > rumpsysent
1210 printf("CTASSERT(__arraycount(rump_sysent) == SYS_NSYSENT);\n") > rumpsysent
1211 printf("__strong_alias(rumpns_sysent,rump_sysent);\n") > rumpsysent
1212 printf("#endif /* RUMP_CLIENT */\n") > rumpsysent
1213 if (haverumpcalls)
1214 printf("#endif /* !RUMP_CLIENT */\n") > sysprotos
1215 printf("};\n") > sysnamesbottom
1216 printf("};\n") > sysnamesfriendly
1217 printf("#define\t%sMAXSYSCALL\t%d\n", constprefix, maxsyscall) > sysnumhdr
1218 if (nsysent)
1219 printf("#define\t%sNSYSENT\t%d\n", constprefix, nsysent) > sysnumhdr
1220 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
1221 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
1222 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
1223 } '
1224
1225 cat $sysprotos >> $sysarghdr
1226 echo "#endif /* _${constprefix}SYSCALL_H_ */" >> $sysnumhdr
1227 echo "#endif /* _${constprefix}SYSCALLARGS_H_ */" >> $sysarghdr
1228 printf "\t { 0, NULL }\n" >> $sysautoloadbottom
1229 echo "};" >> $sysautoloadbottom
1230 printf "\n#endif /* _RUMP_RUMP_SYSCALLS_H_ */\n" >> $rumpprotos
1231 cat $sysdcl $sysent > $syssw
1232 cat $sysnamesbottom >> $sysnames
1233 cat $sysnamesfriendly >> $sysnames
1234 cat $rumpsysent >> $rumpcalls
1235 cat $sysautoloadbottom >> $sysautoload
1236
1237 touch $rumptypes
1238 cat $rumptypes >> $rumpcallshdr
1239 echo >> $rumpcallshdr
1240 cat $rumpprotos >> $rumpcallshdr
1241
1242 #chmod 444 $sysnames $sysnumhdr $syssw
1243
1244 cat $systracetmp >> $systrace
1245 cat $systraceret >> $systrace
1246
1247 echo Generated following files:
1248 echo $sysarghdr $sysnumhdr $syssw $sysnames $sysautoload $systrace $rumpcalls $rumpcallshdr $rumpsysmap
1249