xref: /f-stack/freebsd/kern/makesyscalls.sh (revision 22ce4aff) 
1#! /bin/sh -
2#	@(#)makesyscalls.sh	8.1 (Berkeley) 6/10/93
3# $FreeBSD$
4
5set -e
6
7# name of compat options:
8compat=COMPAT_43
9compat4=COMPAT_FREEBSD4
10compat6=COMPAT_FREEBSD6
11compat7=COMPAT_FREEBSD7
12compat10=COMPAT_FREEBSD10
13compat11=COMPAT_FREEBSD11
14compat12=COMPAT_FREEBSD12
15
16# output files:
17sysnames="syscalls.c"
18sysproto="../sys/sysproto.h"
19sysproto_h=_SYS_SYSPROTO_H_
20syshdr="../sys/syscall.h"
21sysmk="../sys/syscall.mk"
22syssw="init_sysent.c"
23syscallprefix="SYS_"
24switchname="sysent"
25namesname="syscallnames"
26systrace="systrace_args.c"
27
28# tmp files:
29sysaue="sysent.aue.$$"
30sysdcl="sysent.dcl.$$"
31syscompat="sysent.compat.$$"
32syscompatdcl="sysent.compatdcl.$$"
33syscompat4="sysent.compat4.$$"
34syscompat4dcl="sysent.compat4dcl.$$"
35syscompat6="sysent.compat6.$$"
36syscompat6dcl="sysent.compat6dcl.$$"
37syscompat7="sysent.compat7.$$"
38syscompat7dcl="sysent.compat7dcl.$$"
39syscompat10="sysent.compat10.$$"
40syscompat10dcl="sysent.compat10dcl.$$"
41syscompat11="sysent.compat11.$$"
42syscompat11dcl="sysent.compat11dcl.$$"
43syscompat12="sysent.compat12.$$"
44syscompat12dcl="sysent.compat12dcl.$$"
45sysent="sysent.switch.$$"
46sysinc="sysinc.switch.$$"
47sysarg="sysarg.switch.$$"
48sysprotoend="sysprotoend.$$"
49systracetmp="systrace.$$"
50systraceret="systraceret.$$"
51capabilities_conf="capabilities.conf"
52
53trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $syscompat12 $syscompat12dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
54
55touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $syscompat12 $syscompat12dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
56
57case $# in
58    0)	echo "usage: $0 input-file <config-file>" 1>&2
59	exit 1
60	;;
61esac
62
631>&2 echo "$0: This script has been replaced by sys/tools/makesyscalls.lua and"
641>&2 echo "$0: will be removed before FreeBSD 13.  See also: sys/conf/sysent.mk"
65
66if [ -n "$2" ]; then
67	. "$2"
68fi
69
70if [ -n "$capenabled" ]; then
71	# do nothing
72elif [ -r $capabilities_conf ]; then
73	capenabled=`egrep -v '^#|^$' $capabilities_conf`
74	capenabled=`echo $capenabled | sed 's/ /,/g'`
75else
76	capenabled=""
77fi
78
79sed -e '
80	# FreeBSD ID, includes, comments, and blank lines
81	/.*\$FreeBSD/b done_joining
82	/^[#;]/b done_joining
83	/^$/b done_joining
84
85	# Join lines ending in backslash
86:joining
87	/\\$/{a\
88
89	N
90	s/\\\n//
91	b joining
92	}
93
94	# OBSOL, etc lines without function signatures
95	/^[0-9][^{]*$/b done_joining
96
97	# Join incomplete signatures.  The { must appear on the first line
98	# and the } must appear on the last line (modulo lines joined by
99	# backslashes).
100	/^[^}]*$/{a\
101
102	N
103	s/\n//
104	b joining
105	}
106:done_joining
1072,${
108	/^#/!s/\([{}()*,]\)/ \1 /g
109}
110' < $1 | awk "
111	BEGIN {
112		sysaue = \"$sysaue\"
113		sysdcl = \"$sysdcl\"
114		sysproto = \"$sysproto\"
115		sysprotoend = \"$sysprotoend\"
116		sysproto_h = \"$sysproto_h\"
117		syscompat = \"$syscompat\"
118		syscompatdcl = \"$syscompatdcl\"
119		syscompat4 = \"$syscompat4\"
120		syscompat4dcl = \"$syscompat4dcl\"
121		syscompat6 = \"$syscompat6\"
122		syscompat6dcl = \"$syscompat6dcl\"
123		syscompat7 = \"$syscompat7\"
124		syscompat7dcl = \"$syscompat7dcl\"
125		syscompat10 = \"$syscompat10\"
126		syscompat10dcl = \"$syscompat10dcl\"
127		syscompat11 = \"$syscompat11\"
128		syscompat11dcl = \"$syscompat11dcl\"
129		syscompat12 = \"$syscompat12\"
130		syscompat12dcl = \"$syscompat12dcl\"
131		sysent = \"$sysent\"
132		syssw = \"$syssw\"
133		sysinc = \"$sysinc\"
134		sysarg = \"$sysarg\"
135		sysnames = \"$sysnames\"
136		syshdr = \"$syshdr\"
137		sysmk = \"$sysmk\"
138		systrace = \"$systrace\"
139		systracetmp = \"$systracetmp\"
140		systraceret = \"$systraceret\"
141		compat = \"$compat\"
142		compat4 = \"$compat4\"
143		compat6 = \"$compat6\"
144		compat7 = \"$compat7\"
145		compat10 = \"$compat10\"
146		compat11 = \"$compat11\"
147		compat12 = \"$compat12\"
148		syscallprefix = \"$syscallprefix\"
149		switchname = \"$switchname\"
150		namesname = \"$namesname\"
151		infile = \"$1\"
152		abi_func_prefix = \"$abi_func_prefix\"
153		capenabled_string = \"$capenabled\"
154		"'
155
156		# Avoid a literal generated file tag here.
157		generated = "@" "generated";
158
159		split(capenabled_string, capenabled, ",");
160
161		printf "\n/* The casts are bogus but will do for now. */\n" > sysent
162		printf "struct sysent %s[] = {\n",switchname > sysent
163
164		printf "/*\n * System call switch table.\n *\n" > syssw
165		printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > syssw
166		printf " * $%s$\n", "FreeBSD" > syssw
167		printf " */\n\n" > syssw
168
169		printf "/*\n * System call prototypes.\n *\n" > sysarg
170		printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > sysarg
171		printf " * $%s$\n", "FreeBSD" > sysarg
172		printf " */\n\n" > sysarg
173		printf "#ifndef %s\n", sysproto_h > sysarg
174		printf "#define\t%s\n\n", sysproto_h > sysarg
175		printf "#include <sys/signal.h>\n" > sysarg
176		printf "#include <sys/acl.h>\n" > sysarg
177		printf "#include <sys/cpuset.h>\n" > sysarg
178		printf "#include <sys/domainset.h>\n" > sysarg
179		printf "#include <sys/_ffcounter.h>\n" > sysarg
180		printf "#include <sys/_semaphore.h>\n" > sysarg
181		printf "#include <sys/ucontext.h>\n" > sysarg
182		printf "#include <sys/wait.h>\n\n" > sysarg
183		printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
184		printf "struct proc;\n\n" > sysarg
185		printf "struct thread;\n\n" > sysarg
186		printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
187		printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
188		printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
189		printf "#define\tPADL_(t)\t0\n" > sysarg
190		printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
191		printf "#else\n" > sysarg
192		printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
193		printf "#define\tPADR_(t)\t0\n" > sysarg
194		printf "#endif\n\n" > sysarg
195
196		printf "\n#ifdef %s\n\n", compat > syscompat
197		printf "\n#ifdef %s\n\n", compat4 > syscompat4
198		printf "\n#ifdef %s\n\n", compat6 > syscompat6
199		printf "\n#ifdef %s\n\n", compat7 > syscompat7
200		printf "\n#ifdef %s\n\n", compat10 > syscompat10
201		printf "\n#ifdef %s\n\n", compat11 > syscompat11
202		printf "\n#ifdef %s\n\n", compat12 > syscompat12
203
204		printf "/*\n * System call names.\n *\n" > sysnames
205		printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > sysnames
206		printf " * $%s$\n", "FreeBSD" > sysnames
207		printf " */\n\n" > sysnames
208		printf "const char *%s[] = {\n", namesname > sysnames
209
210		printf "/*\n * System call numbers.\n *\n" > syshdr
211		printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > syshdr
212		printf " * $%s$\n", "FreeBSD" > syshdr
213		printf " */\n\n" > syshdr
214
215		printf "# FreeBSD system call object files.\n" > sysmk
216		printf "# DO NOT EDIT-- this file is automatically " generated ".\n" > sysmk
217		printf "# $%s$\n", "FreeBSD" > sysmk
218		printf "MIASM = " > sysmk
219
220		printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
221		printf " * DO NOT EDIT-- this file is automatically " generated ".\n" > systrace
222		printf " * $%s$\n", "FreeBSD" > systrace
223		printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
224		printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
225		printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
226		printf "\tswitch (sysnum) {\n" > systrace
227
228		printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
229		printf "\tswitch (sysnum) {\n" > systracetmp
230
231		printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
232		printf "\tswitch (sysnum) {\n" > systraceret
233	}
234	NR == 1 {
235		next
236	}
237	NF == 0 || $1 ~ /^;/ {
238		next
239	}
240	$1 ~ /^#[ 	]*include/ {
241		print > sysinc
242		next
243	}
244	$1 ~ /^#[ 	]*if/ {
245		print > sysent
246		print > sysdcl
247		print > sysarg
248		print > syscompat
249		print > syscompat4
250		print > syscompat6
251		print > syscompat7
252		print > syscompat10
253		print > syscompat11
254		print > syscompat12
255		print > sysnames
256		print > systrace
257		print > systracetmp
258		print > systraceret
259		savesyscall = syscall
260		next
261	}
262	$1 ~ /^#[ 	]*else/ {
263		print > sysent
264		print > sysdcl
265		print > sysarg
266		print > syscompat
267		print > syscompat4
268		print > syscompat6
269		print > syscompat7
270		print > syscompat10
271		print > syscompat11
272		print > syscompat12
273		print > sysnames
274		print > systrace
275		print > systracetmp
276		print > systraceret
277		syscall = savesyscall
278		next
279	}
280	$1 ~ /^#/ {
281		print > sysent
282		print > sysdcl
283		print > sysarg
284		print > syscompat
285		print > syscompat4
286		print > syscompat6
287		print > syscompat7
288		print > syscompat10
289		print > syscompat11
290		print > syscompat12
291		print > sysnames
292		print > systrace
293		print > systracetmp
294		print > systraceret
295		next
296	}
297	# Returns true if the type "name" is the first flag in the type field
298	function type(name, flags, n) {
299		n = split($3, flags, /\|/)
300		return (n > 0 && flags[1] == name)
301	}
302	# Returns true if the flag "name" is set in the type field
303	function flag(name, flags, i, n) {
304		n = split($3, flags, /\|/)
305		for (i = 1; i <= n; i++)
306			if (flags[i] == name)
307				return 1
308		return 0
309	}
310	{
311		n = split($1, syscall_range, /-/)
312		if (n == 1) {
313			syscall_range[2] = syscall_range[1]
314		} else if (n == 2) {
315			if (!type("UNIMPL")) {
316				printf "%s: line %d: range permitted only with UNIMPL\n",
317				    infile, NR
318				exit 1
319			}
320		} else {
321			printf "%s: line %d: invalid syscall number or range %s\n",
322			    infile, NR, $1
323			exit 1
324		}
325	}
326	syscall != syscall_range[1] {
327		printf "%s: line %d: syscall number out of sync at %d\n",
328		    infile, NR, syscall
329		printf "line is:\n"
330		print
331		exit 1
332	}
333	function align_sysent_comment(column) {
334		printf("\t") > sysent
335		column = column + 8 - column % 8
336		while (column < 56) {
337			printf("\t") > sysent
338			column = column + 8
339		}
340	}
341	function parserr(was, wanted) {
342		printf "%s: line %d: unexpected %s (expected %s)\n",
343		    infile, NR, was, wanted
344		exit 1
345	}
346	function parseline() {
347		f=4			# toss number, type, audit event
348		ret_inc = 0
349		argc= 0;
350		argssize = "0"
351		thr_flag = "SY_THR_STATIC"
352		if (flag("NOTSTATIC")) {
353			thr_flag = "SY_THR_ABSENT"
354		}
355		if ($NF != "}") {
356			funcalias=$(NF-2)
357			argalias=$(NF-1)
358			rettype=$NF
359			end=NF-3
360		} else {
361			funcalias=""
362			argalias=""
363			rettype="int"
364			if ($(f+2) == "*") {
365				ret_inc = 1
366			}
367			end=NF
368		}
369		if (flag("NODEF")) {
370			auditev="AUE_NULL"
371			funcname=$(4 + ret_inc)
372			argssize = "AS(" $(6 + ret_inc) ")"
373			return
374		}
375		if ($f != "{")
376			parserr($f, "{")
377		f++
378		if ($end != "}")
379			parserr($end, "}")
380		end--
381		if ($end != ";")
382			parserr($end, ";")
383		end--
384		if ($end != ")")
385			parserr($end, ")")
386		end--
387
388		syscallret=$f
389		f++
390		while (ret_inc > 0) {
391			syscallret=syscallret " " $f
392			f++
393			ret_inc--
394		}
395
396		funcname=$f
397
398		#
399		# We now know the func name, so define a flags field for it.
400		# Do this before any other processing as we may return early
401		# from it.
402		#
403		for (cap in capenabled) {
404			if (funcname == capenabled[cap] ||
405			    funcname == abi_func_prefix capenabled[cap]) {
406				flags = "SYF_CAPENABLED";
407				break;
408			}
409		}
410
411		if (funcalias == "")
412			funcalias = funcname
413		if (argalias == "") {
414			argalias = funcname "_args"
415			if (flag("COMPAT"))
416				argalias = "o" argalias
417			if (flag("COMPAT4"))
418				argalias = "freebsd4_" argalias
419			if (flag("COMPAT6"))
420				argalias = "freebsd6_" argalias
421			if (flag("COMPAT7"))
422				argalias = "freebsd7_" argalias
423			if (flag("COMPAT10"))
424				argalias = "freebsd10_" argalias
425			if (flag("COMPAT11"))
426				argalias = "freebsd11_" argalias
427			if (flag("COMPAT12"))
428				argalias = "freebsd12_" argalias
429		}
430		f++
431
432		if ($f != "(")
433			parserr($f, ")")
434		f++
435
436		if (f == end) {
437			if ($f != "void")
438				parserr($f, "argument definition")
439			return
440		}
441
442		while (f <= end) {
443			argc++
444			argtype[argc]=""
445			oldf=""
446			while (f < end && $(f+1) != ",") {
447				if (argtype[argc] != "" && oldf != "*")
448					argtype[argc] = argtype[argc]" ";
449				argtype[argc] = argtype[argc]$f;
450				oldf = $f;
451				f++
452			}
453			if (argtype[argc] == "")
454				parserr($f, "argument definition")
455
456			# The parser adds space around parens.
457			# Remove it from annotations.
458			gsub(/ \( /, "(", argtype[argc]);
459			gsub(/ \)/, ")", argtype[argc]);
460
461			#remove annotations
462			gsub(/_In[^ ]*[_)] /, "", argtype[argc]);
463			gsub(/_Out[^ ]*[_)] /, "", argtype[argc]);
464
465			argname[argc]=$f;
466			f += 2;			# skip name, and any comma
467		}
468		if (argc != 0)
469			argssize = "AS(" argalias ")"
470	}
471	{	comment = $4
472		if (NF < 7)
473			for (i = 5; i <= NF; i++)
474				comment = comment " " $i
475	}
476
477	#
478	# The AUE_ audit event identifier.
479	#
480	{
481		auditev = $2;
482	}
483
484	#
485	# The flags, if any.
486	#
487	{
488		flags = "0";
489	}
490
491	type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
492	    || type("NOSTD") {
493		parseline()
494		printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
495		printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
496		printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
497		if (argc > 0) {
498			printf("\t\tswitch(ndx) {\n") > systracetmp
499			printf("\t\tstruct %s *p = params;\n", argalias) > systrace
500			for (i = 1; i <= argc; i++) {
501				arg = argtype[i]
502				sub("__restrict$", "", arg)
503				if (index(arg, "*") > 0)
504					printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
505				else
506					printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
507				if (index(arg, "*") > 0 || arg == "caddr_t")
508					printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
509					     i - 1, \
510					     argname[i], arg) > systrace
511				else if (arg == "union l_semun")
512					printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
513					     i - 1, \
514					     argname[i], arg) > systrace
515				else if (substr(arg, 1, 1) == "u" || arg == "size_t")
516					printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
517					     i - 1, \
518					     argname[i], arg) > systrace
519				else
520					printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
521					     i - 1, \
522					     argname[i], arg) > systrace
523			}
524			printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
525
526			printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
527			printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
528			printf("\t\tbreak;\n") > systraceret
529		}
530		printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
531		printf("\t\tbreak;\n") > systracetmp
532		if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF")) {
533			if (argc != 0) {
534				printf("struct %s {\n", argalias) > sysarg
535				for (i = 1; i <= argc; i++)
536					printf("\tchar %s_l_[PADL_(%s)]; " \
537					    "%s %s; char %s_r_[PADR_(%s)];\n",
538					    argname[i], argtype[i],
539					    argtype[i], argname[i],
540					    argname[i], argtype[i]) > sysarg
541				printf("};\n") > sysarg
542			} else
543				printf("struct %s {\n\tregister_t dummy;\n};\n",
544				    argalias) > sysarg
545		}
546		if (!flag("NOPROTO") && !flag("NODEF")) {
547			if (funcname == "nosys" || funcname == "lkmnosys" ||
548			    funcname == "sysarch" || funcname ~ /^freebsd/ ||
549			    funcname ~ /^linux/ || funcname ~ /^cloudabi/) {
550				printf("%s\t%s(struct thread *, struct %s *)",
551				    rettype, funcname, argalias) > sysdcl
552			} else {
553				printf("%s\tsys_%s(struct thread *, struct %s *)",
554				    rettype, funcname, argalias) > sysdcl
555			}
556			printf(";\n") > sysdcl
557			printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
558			    funcalias, auditev) > sysaue
559		}
560		printf("\t{ %s, (sy_call_t *)", argssize) > sysent
561		column = 8 + 2 + length(argssize) + 15
562		if (flag("NOSTD")) {
563			printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
564			column = column + length("lkmressys") + length("AUE_NULL") + 3
565		} else {
566			if (funcname == "nosys" || funcname == "sysarch" ||
567			    funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
568			    funcname ~ /^linux/ || funcname ~ /^cloudabi/) {
569				printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
570				column = column + length(funcname) + length(auditev) + length(flags) + 3
571			} else {
572				printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
573				column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
574			}
575		}
576		align_sysent_comment(column)
577		printf("/* %d = %s */\n", syscall, funcalias) > sysent
578		printf("\t\"%s\",\t\t\t/* %d = %s */\n",
579		    funcalias, syscall, funcalias) > sysnames
580		if (!flag("NODEF")) {
581			printf("#define\t%s%s\t%d\n", syscallprefix,
582		    	    funcalias, syscall) > syshdr
583			printf(" \\\n\t%s.o", funcalias) > sysmk
584		}
585		syscall++
586		next
587	}
588	type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
589	    type("COMPAT7") || type("COMPAT10") || type("COMPAT11") || \
590	    type("COMPAT12") {
591		if (flag("COMPAT")) {
592			ncompat++
593			out = syscompat
594			outdcl = syscompatdcl
595			wrap = "compat"
596			prefix = "o"
597			descr = "old"
598		} else if (flag("COMPAT4")) {
599			ncompat4++
600			out = syscompat4
601			outdcl = syscompat4dcl
602			wrap = "compat4"
603			prefix = "freebsd4_"
604			descr = "freebsd4"
605		} else if (flag("COMPAT6")) {
606			ncompat6++
607			out = syscompat6
608			outdcl = syscompat6dcl
609			wrap = "compat6"
610			prefix = "freebsd6_"
611			descr = "freebsd6"
612		} else if (flag("COMPAT7")) {
613			ncompat7++
614			out = syscompat7
615			outdcl = syscompat7dcl
616			wrap = "compat7"
617			prefix = "freebsd7_"
618			descr = "freebsd7"
619		} else if (flag("COMPAT10")) {
620			ncompat10++
621			out = syscompat10
622			outdcl = syscompat10dcl
623			wrap = "compat10"
624			prefix = "freebsd10_"
625			descr = "freebsd10"
626		} else if (flag("COMPAT11")) {
627			ncompat11++
628			out = syscompat11
629			outdcl = syscompat11dcl
630			wrap = "compat11"
631			prefix = "freebsd11_"
632			descr = "freebsd11"
633		} else if (flag("COMPAT12")) {
634			ncompat12++
635			out = syscompat12
636			outdcl = syscompat12dcl
637			wrap = "compat12"
638			prefix = "freebsd12_"
639			descr = "freebsd12"
640		}
641		parseline()
642		if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
643		    !flag("NODEF")) {
644			printf("struct %s {\n", argalias) > out
645			for (i = 1; i <= argc; i++)
646				printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
647				    "char %s_r_[PADR_(%s)];\n",
648				    argname[i], argtype[i],
649				    argtype[i], argname[i],
650				    argname[i], argtype[i]) > out
651			printf("};\n") > out
652		}
653		else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
654			printf("struct %s {\n\tregister_t dummy;\n};\n",
655			    argalias) > sysarg
656		if (!flag("NOPROTO") && !flag("NODEF")) {
657			printf("%s\t%s%s(struct thread *, struct %s *);\n",
658			    rettype, prefix, funcname, argalias) > outdcl
659			printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
660			    prefix, funcname, auditev) > sysaue
661		}
662		if (flag("NOSTD")) {
663			printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
664			    "0", "lkmressys", "AUE_NULL") > sysent
665			align_sysent_comment(8 + 2 + length("0") + 15 + \
666			    length("lkmressys") + length("AUE_NULL") + 3)
667		} else {
668			printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
669			    wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
670			align_sysent_comment(8 + 9 + length(argssize) + 1 + \
671			    length(funcname) + length(auditev) + \
672			    length(flags) + 4)
673		}
674		printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
675		printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
676		    wrap, funcalias, syscall, descr, funcalias) > sysnames
677		# Do not provide freebsdN_* symbols in libc for < FreeBSD 7
678		if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
679			printf("\t\t\t\t/* %d is %s %s */\n",
680			    syscall, descr, funcalias) > syshdr
681		} else if (!flag("NODEF")) {
682			printf("#define\t%s%s%s\t%d\n", syscallprefix,
683			    prefix, funcalias, syscall) > syshdr
684			printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
685		}
686		syscall++
687		next
688	}
689	type("OBSOL") {
690		printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
691		align_sysent_comment(34)
692		printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
693		printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
694		    $4, syscall, comment) > sysnames
695		printf("\t\t\t\t/* %d is obsolete %s */\n",
696		    syscall, comment) > syshdr
697		syscall++
698		next
699	}
700	type("UNIMPL") {
701		while (syscall <= syscall_range[2]) {
702			printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
703			    syscall, comment) > sysent
704			printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
705			    syscall, syscall, comment) > sysnames
706			syscall++
707		}
708		next
709	}
710	{
711		printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
712		exit 1
713	}
714	END {
715		printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
716
717		if (ncompat != 0) {
718			printf "\n#ifdef %s\n", compat > sysinc
719			printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
720			printf "#else\n" > sysinc
721			printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
722			printf "#endif\n" > sysinc
723		}
724
725		if (ncompat4 != 0) {
726			printf "\n#ifdef %s\n", compat4 > sysinc
727			printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
728			printf "#else\n" > sysinc
729			printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
730			printf "#endif\n" > sysinc
731		}
732
733		if (ncompat6 != 0) {
734			printf "\n#ifdef %s\n", compat6 > sysinc
735			printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
736			printf "#else\n" > sysinc
737			printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
738			printf "#endif\n" > sysinc
739		}
740
741		if (ncompat7 != 0) {
742			printf "\n#ifdef %s\n", compat7 > sysinc
743			printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
744			printf "#else\n" > sysinc
745			printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
746			printf "#endif\n" > sysinc
747		}
748		if (ncompat10 != 0) {
749			printf "\n#ifdef %s\n", compat10 > sysinc
750			printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
751			printf "#else\n" > sysinc
752			printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
753			printf "#endif\n" > sysinc
754		}
755		if (ncompat11 != 0) {
756			printf "\n#ifdef %s\n", compat11 > sysinc
757			printf "#define compat11(n, name) n, (sy_call_t *)__CONCAT(freebsd11_,name)\n" > sysinc
758			printf "#else\n" > sysinc
759			printf "#define compat11(n, name) 0, (sy_call_t *)nosys\n" > sysinc
760			printf "#endif\n" > sysinc
761		}
762		if (ncompat12 != 0) {
763			printf "\n#ifdef %s\n", compat12 > sysinc
764			printf "#define compat12(n, name) n, (sy_call_t *)__CONCAT(freebsd12_,name)\n" > sysinc
765			printf "#else\n" > sysinc
766			printf "#define compat12(n, name) 0, (sy_call_t *)nosys\n" > sysinc
767			printf "#endif\n" > sysinc
768		}
769
770		printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
771		printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
772		printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
773		printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
774		printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
775		printf("\n#endif /* %s */\n\n", compat11) > syscompat11dcl
776		printf("\n#endif /* %s */\n\n", compat12) > syscompat12dcl
777
778		printf("\n#undef PAD_\n") > sysprotoend
779		printf("#undef PADL_\n") > sysprotoend
780		printf("#undef PADR_\n") > sysprotoend
781		printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
782
783		printf("\n") > sysmk
784		printf("};\n") > sysent
785		printf("};\n") > sysnames
786		printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
787		    > syshdr
788		printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
789		printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
790		printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
791	} '
792
793cat $sysinc $sysent >> $syssw
794cat $sysarg $sysdcl \
795	$syscompat $syscompatdcl \
796	$syscompat4 $syscompat4dcl \
797	$syscompat6 $syscompat6dcl \
798	$syscompat7 $syscompat7dcl \
799	$syscompat10 $syscompat10dcl \
800	$syscompat11 $syscompat11dcl \
801	$syscompat12 $syscompat12dcl \
802	$sysaue $sysprotoend > $sysproto
803cat $systracetmp >> $systrace
804cat $systraceret >> $systrace
805
806