1#! /bin/sh -
2#	@(#)makesyscalls.sh	8.1 (Berkeley) 6/10/93
3# $FreeBSD: stable/11/sys/kern/makesyscalls.sh 346811 2019-04-28 09:49:30Z dchagin $
4
5set -e
6
7# name of compat options:
8compat=COMPAT_43
9compat4=COMPAT_FREEBSD4
10compat6=COMPAT_FREEBSD6
11compat7=COMPAT_FREEBSD7
12compat10=COMPAT_FREEBSD10
13
14# output files:
15sysnames="syscalls.c"
16sysproto="../sys/sysproto.h"
17sysproto_h=_SYS_SYSPROTO_H_
18syshdr="../sys/syscall.h"
19sysmk="../sys/syscall.mk"
20syssw="init_sysent.c"
21syscallprefix="SYS_"
22switchname="sysent"
23namesname="syscallnames"
24systrace="systrace_args.c"
25
26# tmp files:
27sysaue="sysent.aue.$$"
28sysdcl="sysent.dcl.$$"
29syscompat="sysent.compat.$$"
30syscompatdcl="sysent.compatdcl.$$"
31syscompat4="sysent.compat4.$$"
32syscompat4dcl="sysent.compat4dcl.$$"
33syscompat6="sysent.compat6.$$"
34syscompat6dcl="sysent.compat6dcl.$$"
35syscompat7="sysent.compat7.$$"
36syscompat7dcl="sysent.compat7dcl.$$"
37syscompat10="sysent.compat10.$$"
38syscompat10dcl="sysent.compat10dcl.$$"
39sysent="sysent.switch.$$"
40sysinc="sysinc.switch.$$"
41sysarg="sysarg.switch.$$"
42sysprotoend="sysprotoend.$$"
43systracetmp="systrace.$$"
44systraceret="systraceret.$$"
45
46if [ -r capabilities.conf ]; then
47	capenabled=`cat capabilities.conf | grep -v "^#" | grep -v "^$"`
48	capenabled=`echo $capenabled | sed 's/ /,/g'`
49else
50	capenabled=""
51fi
52
53trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
54
55touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $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
63if [ -n "$2" ]; then
64	. $2
65fi
66
67sed -e '
68:join
69	/\\$/{a\
70
71	N
72	s/\\\n//
73	b join
74	}
752,${
76	/^#/!s/\([{}()*,]\)/ \1 /g
77}
78' < $1 | awk "
79	BEGIN {
80		sysaue = \"$sysaue\"
81		sysdcl = \"$sysdcl\"
82		sysproto = \"$sysproto\"
83		sysprotoend = \"$sysprotoend\"
84		sysproto_h = \"$sysproto_h\"
85		syscompat = \"$syscompat\"
86		syscompatdcl = \"$syscompatdcl\"
87		syscompat4 = \"$syscompat4\"
88		syscompat4dcl = \"$syscompat4dcl\"
89		syscompat6 = \"$syscompat6\"
90		syscompat6dcl = \"$syscompat6dcl\"
91		syscompat7 = \"$syscompat7\"
92		syscompat7dcl = \"$syscompat7dcl\"
93		syscompat10 = \"$syscompat10\"
94		syscompat10dcl = \"$syscompat10dcl\"
95		sysent = \"$sysent\"
96		syssw = \"$syssw\"
97		sysinc = \"$sysinc\"
98		sysarg = \"$sysarg\"
99		sysnames = \"$sysnames\"
100		syshdr = \"$syshdr\"
101		sysmk = \"$sysmk\"
102		systrace = \"$systrace\"
103		systracetmp = \"$systracetmp\"
104		systraceret = \"$systraceret\"
105		compat = \"$compat\"
106		compat4 = \"$compat4\"
107		compat6 = \"$compat6\"
108		compat7 = \"$compat7\"
109		compat10 = \"$compat10\"
110		syscallprefix = \"$syscallprefix\"
111		switchname = \"$switchname\"
112		namesname = \"$namesname\"
113		infile = \"$1\"
114		capenabled_string = \"$capenabled\"
115		"'
116
117		split(capenabled_string, capenabled, ",");
118
119		printf "\n/* The casts are bogus but will do for now. */\n" > sysent
120		printf "struct sysent %s[] = {\n",switchname > sysent
121
122		printf "/*\n * System call switch table.\n *\n" > syssw
123		printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
124		printf " * $%s$\n", "FreeBSD" > syssw
125		printf " */\n\n" > syssw
126
127		printf "/*\n * System call prototypes.\n *\n" > sysarg
128		printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
129		printf " * $%s$\n", "FreeBSD" > sysarg
130		printf " */\n\n" > sysarg
131		printf "#ifndef %s\n", sysproto_h > sysarg
132		printf "#define\t%s\n\n", sysproto_h > sysarg
133		printf "#include <sys/signal.h>\n" > sysarg
134		printf "#include <sys/acl.h>\n" > sysarg
135		printf "#include <sys/cpuset.h>\n" > sysarg
136		printf "#include <sys/_ffcounter.h>\n" > sysarg
137		printf "#include <sys/_semaphore.h>\n" > sysarg
138		printf "#include <sys/ucontext.h>\n" > sysarg
139		printf "#include <sys/wait.h>\n\n" > sysarg
140		printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
141		printf "struct proc;\n\n" > sysarg
142		printf "struct thread;\n\n" > sysarg
143		printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
144		printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
145		printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
146		printf "#define\tPADL_(t)\t0\n" > sysarg
147		printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
148		printf "#else\n" > sysarg
149		printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
150		printf "#define\tPADR_(t)\t0\n" > sysarg
151		printf "#endif\n\n" > sysarg
152
153		printf "\n#ifdef %s\n\n", compat > syscompat
154		printf "\n#ifdef %s\n\n", compat4 > syscompat4
155		printf "\n#ifdef %s\n\n", compat6 > syscompat6
156		printf "\n#ifdef %s\n\n", compat7 > syscompat7
157		printf "\n#ifdef %s\n\n", compat10 > syscompat10
158
159		printf "/*\n * System call names.\n *\n" > sysnames
160		printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
161		printf " * $%s$\n", "FreeBSD" > sysnames
162		printf " */\n\n" > sysnames
163		printf "const char *%s[] = {\n", namesname > sysnames
164
165		printf "/*\n * System call numbers.\n *\n" > syshdr
166		printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
167		printf " * $%s$\n", "FreeBSD" > syshdr
168		printf " */\n\n" > syshdr
169
170		printf "# FreeBSD system call object files.\n" > sysmk
171		printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
172		printf "# $%s$\n", "FreeBSD" > sysmk
173		printf "MIASM = " > sysmk
174
175		printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
176		printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
177		printf " * $%s$\n", "FreeBSD" > systrace
178		printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
179		printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
180		printf "\tint64_t *iarg  = (int64_t *) uarg;\n" > systrace
181		printf "\tswitch (sysnum) {\n" > systrace
182
183		printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
184		printf "\tswitch (sysnum) {\n" > systracetmp
185
186		printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
187		printf "\tswitch (sysnum) {\n" > systraceret
188	}
189	NR == 1 {
190		next
191	}
192	NF == 0 || $1 ~ /^;/ {
193		next
194	}
195	$1 ~ /^#[ 	]*include/ {
196		print > sysinc
197		next
198	}
199	$1 ~ /^#[ 	]*if/ {
200		print > sysent
201		print > sysdcl
202		print > sysarg
203		print > syscompat
204		print > syscompat4
205		print > syscompat6
206		print > syscompat7
207		print > syscompat10
208		print > sysnames
209		print > systrace
210		print > systracetmp
211		print > systraceret
212		savesyscall = syscall
213		next
214	}
215	$1 ~ /^#[ 	]*else/ {
216		print > sysent
217		print > sysdcl
218		print > sysarg
219		print > syscompat
220		print > syscompat4
221		print > syscompat6
222		print > syscompat7
223		print > syscompat10
224		print > sysnames
225		print > systrace
226		print > systracetmp
227		print > systraceret
228		syscall = savesyscall
229		next
230	}
231	$1 ~ /^#/ {
232		print > sysent
233		print > sysdcl
234		print > sysarg
235		print > syscompat
236		print > syscompat4
237		print > syscompat6
238		print > syscompat7
239		print > syscompat10
240		print > sysnames
241		print > systrace
242		print > systracetmp
243		print > systraceret
244		next
245	}
246	# Returns true if the type "name" is the first flag in the type field
247	function type(name, flags, n) {
248		n = split($3, flags, /\|/)
249		return (n > 0 && flags[1] == name)
250	}
251	# Returns true if the flag "name" is set in the type field
252	function flag(name, flags, i, n) {
253		n = split($3, flags, /\|/)
254		for (i = 1; i <= n; i++)
255			if (flags[i] == name)
256				return 1
257		return 0
258	}
259	{
260		n = split($1, syscall_range, /-/)
261		if (n == 1) {
262			syscall_range[2] = syscall_range[1]
263		} else if (n == 2) {
264			if (!type("UNIMPL")) {
265				printf "%s: line %d: range permitted only with UNIMPL\n",
266				    infile, NR
267				exit 1
268			}
269		} else {
270			printf "%s: line %d: invalid syscall number or range %s\n",
271			    infile, NR, $1
272			exit 1
273		}
274	}
275	syscall != syscall_range[1] {
276		printf "%s: line %d: syscall number out of sync at %d\n",
277		    infile, NR, syscall
278		printf "line is:\n"
279		print
280		exit 1
281	}
282	function align_sysent_comment(column) {
283		printf("\t") > sysent
284		column = column + 8 - column % 8
285		while (column < 56) {
286			printf("\t") > sysent
287			column = column + 8
288		}
289	}
290	function parserr(was, wanted) {
291		printf "%s: line %d: unexpected %s (expected %s)\n",
292		    infile, NR, was, wanted
293		exit 1
294	}
295	function parseline() {
296		f=4			# toss number, type, audit event
297		argc= 0;
298		argssize = "0"
299		thr_flag = "SY_THR_STATIC"
300		if (flag("NOTSTATIC")) {
301			thr_flag = "SY_THR_ABSENT"
302		}
303		if ($NF != "}") {
304			funcalias=$(NF-2)
305			argalias=$(NF-1)
306			rettype=$NF
307			end=NF-3
308		} else {
309			funcalias=""
310			argalias=""
311			rettype="int"
312			end=NF
313		}
314		if (flag("NODEF")) {
315			auditev="AUE_NULL"
316			funcname=$4
317			argssize = "AS(" $6 ")"
318			return
319		}
320		if ($f != "{")
321			parserr($f, "{")
322		f++
323		if ($end != "}")
324			parserr($end, "}")
325		end--
326		if ($end != ";")
327			parserr($end, ";")
328		end--
329		if ($end != ")")
330			parserr($end, ")")
331		end--
332
333		syscallret=$f
334		f++
335
336		funcname=$f
337
338		#
339		# We now know the func name, so define a flags field for it.
340		# Do this before any other processing as we may return early
341		# from it.
342		#
343		for (cap in capenabled) {
344			if (funcname == capenabled[cap]) {
345				flags = "SYF_CAPENABLED";
346				break;
347			}
348		}
349
350		if (funcalias == "")
351			funcalias = funcname
352		if (argalias == "") {
353			argalias = funcname "_args"
354			if (flag("COMPAT"))
355				argalias = "o" argalias
356			if (flag("COMPAT4"))
357				argalias = "freebsd4_" argalias
358			if (flag("COMPAT6"))
359				argalias = "freebsd6_" argalias
360			if (flag("COMPAT7"))
361				argalias = "freebsd7_" argalias
362			if (flag("COMPAT10"))
363				argalias = "freebsd10_" argalias
364		}
365		f++
366
367		if ($f != "(")
368			parserr($f, ")")
369		f++
370
371		if (f == end) {
372			if ($f != "void")
373				parserr($f, "argument definition")
374			return
375		}
376
377		while (f <= end) {
378			argc++
379			argtype[argc]=""
380			oldf=""
381			while (f < end && $(f+1) != ",") {
382				if (argtype[argc] != "" && oldf != "*")
383					argtype[argc] = argtype[argc]" ";
384				argtype[argc] = argtype[argc]$f;
385				oldf = $f;
386				f++
387			}
388			if (argtype[argc] == "")
389				parserr($f, "argument definition")
390			argname[argc]=$f;
391			f += 2;			# skip name, and any comma
392		}
393		if (argc != 0)
394			argssize = "AS(" argalias ")"
395	}
396	{	comment = $4
397		if (NF < 7)
398			for (i = 5; i <= NF; i++)
399				comment = comment " " $i
400	}
401
402	#
403	# The AUE_ audit event identifier.
404	#
405	{
406		auditev = $2;
407	}
408
409	#
410	# The flags, if any.
411	#
412	{
413		flags = "0";
414	}
415
416	type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
417	    || type("NOSTD") {
418		parseline()
419		printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
420		printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
421		printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
422		if (argc > 0) {
423			printf("\t\tswitch(ndx) {\n") > systracetmp
424			printf("\t\tstruct %s *p = params;\n", argalias) > systrace
425			for (i = 1; i <= argc; i++) {
426				arg = argtype[i]
427				sub("__restrict$", "", arg)
428				printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
429				if (index(arg, "*") > 0 || arg == "caddr_t")
430					printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
431					     i - 1, \
432					     argname[i], arg) > systrace
433				else if (arg == "union l_semun")
434					printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
435					     i - 1, \
436					     argname[i], arg) > systrace
437				else if (substr(arg, 1, 1) == "u" || arg == "size_t")
438					printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
439					     i - 1, \
440					     argname[i], arg) > systrace
441				else
442					printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
443					     i - 1, \
444					     argname[i], arg) > systrace
445			}
446			printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
447
448			printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
449			printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
450			printf("\t\tbreak;\n") > systraceret
451		}
452		printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
453		printf("\t\tbreak;\n") > systracetmp
454		if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
455		    !flag("NODEF")) {
456			printf("struct %s {\n", argalias) > sysarg
457			for (i = 1; i <= argc; i++)
458				printf("\tchar %s_l_[PADL_(%s)]; " \
459				    "%s %s; char %s_r_[PADR_(%s)];\n",
460				    argname[i], argtype[i],
461				    argtype[i], argname[i],
462				    argname[i], argtype[i]) > sysarg
463			printf("};\n") > sysarg
464		}
465		else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
466			printf("struct %s {\n\tregister_t dummy;\n};\n",
467			    argalias) > sysarg
468		if (!flag("NOPROTO") && !flag("NODEF")) {
469			if (funcname == "nosys" || funcname == "lkmnosys" ||
470			    funcname == "sysarch" || funcname ~ /^freebsd/ || 
471			    funcname ~ /^linux/ || funcname ~ /^svr4/ || 
472			    funcname ~ /^ibcs2/ || funcname ~ /^xenix/ ||
473			    funcname ~ /^cloudabi/) {
474				printf("%s\t%s(struct thread *, struct %s *)",
475				    rettype, funcname, argalias) > sysdcl
476			} else {
477				printf("%s\tsys_%s(struct thread *, struct %s *)",
478				    rettype, funcname, argalias) > sysdcl
479			} 
480			printf(";\n") > sysdcl
481			printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
482			    funcalias, auditev) > sysaue
483		}
484		printf("\t{ %s, (sy_call_t *)", argssize) > sysent
485		column = 8 + 2 + length(argssize) + 15
486		if (flag("NOSTD")) {
487			printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
488			column = column + length("lkmressys") + length("AUE_NULL") + 3
489		} else {
490			if (funcname == "nosys" || funcname == "sysarch" || 
491			    funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
492			    funcname ~ /^linux/ || funcname ~ /^svr4/ ||
493			    funcname ~ /^ibcs2/ || funcname ~ /^xenix/ ||
494			    funcname ~ /^cloudabi/) {
495				printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
496				column = column + length(funcname) + length(auditev) + length(flags) + 3 
497			} else {
498				printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
499				column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
500			} 
501		} 
502		align_sysent_comment(column)
503		printf("/* %d = %s */\n", syscall, funcalias) > sysent
504		printf("\t\"%s\",\t\t\t/* %d = %s */\n",
505		    funcalias, syscall, funcalias) > sysnames
506		if (!flag("NODEF")) {
507			printf("#define\t%s%s\t%d\n", syscallprefix,
508		    	    funcalias, syscall) > syshdr
509			printf(" \\\n\t%s.o", funcalias) > sysmk
510		}
511		syscall++
512		next
513	}
514	type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
515	    type("COMPAT7") || type("COMPAT10") {
516		if (flag("COMPAT")) {
517			ncompat++
518			out = syscompat
519			outdcl = syscompatdcl
520			wrap = "compat"
521			prefix = "o"
522			descr = "old"
523		} else if (flag("COMPAT4")) {
524			ncompat4++
525			out = syscompat4
526			outdcl = syscompat4dcl
527			wrap = "compat4"
528			prefix = "freebsd4_"
529			descr = "freebsd4"
530		} else if (flag("COMPAT6")) {
531			ncompat6++
532			out = syscompat6
533			outdcl = syscompat6dcl
534			wrap = "compat6"
535			prefix = "freebsd6_"
536			descr = "freebsd6"
537		} else if (flag("COMPAT7")) {
538			ncompat7++
539			out = syscompat7
540			outdcl = syscompat7dcl
541			wrap = "compat7"
542			prefix = "freebsd7_"
543			descr = "freebsd7"
544		} else if (flag("COMPAT10")) {
545			ncompat10++
546			out = syscompat10
547			outdcl = syscompat10dcl
548			wrap = "compat10"
549			prefix = "freebsd10_"
550			descr = "freebsd10"
551		}
552		parseline()
553		if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
554		    !flag("NODEF")) {
555			printf("struct %s {\n", argalias) > out
556			for (i = 1; i <= argc; i++)
557				printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
558				    "char %s_r_[PADR_(%s)];\n",
559				    argname[i], argtype[i],
560				    argtype[i], argname[i],
561				    argname[i], argtype[i]) > out
562			printf("};\n") > out
563		}
564		else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
565			printf("struct %s {\n\tregister_t dummy;\n};\n",
566			    argalias) > sysarg
567		if (!flag("NOPROTO") && !flag("NODEF")) {
568			printf("%s\t%s%s(struct thread *, struct %s *);\n",
569			    rettype, prefix, funcname, argalias) > outdcl
570			printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
571			    prefix, funcname, auditev) > sysaue
572		}
573		if (flag("NOSTD")) {
574			printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
575			    "0", "lkmressys", "AUE_NULL") > sysent
576			align_sysent_comment(8 + 2 + length("0") + 15 + \
577			    length("lkmressys") + length("AUE_NULL") + 3)
578		} else {
579			printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
580			    wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
581			align_sysent_comment(8 + 9 + length(argssize) + 1 + \
582			    length(funcname) + length(auditev) + \
583			    length(flags) + 4)
584		}
585		printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
586		printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
587		    wrap, funcalias, syscall, descr, funcalias) > sysnames
588		# Do not provide freebsdN_* symbols in libc for < FreeBSD 7
589		if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
590			printf("\t\t\t\t/* %d is %s %s */\n",
591			    syscall, descr, funcalias) > syshdr
592		} else if (!flag("NODEF")) {
593			printf("#define\t%s%s%s\t%d\n", syscallprefix,
594			    prefix, funcalias, syscall) > syshdr
595			printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
596		}
597		syscall++
598		next
599	}
600	type("OBSOL") {
601		printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
602		align_sysent_comment(34)
603		printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
604		printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
605		    $4, syscall, comment) > sysnames
606		printf("\t\t\t\t/* %d is obsolete %s */\n",
607		    syscall, comment) > syshdr
608		syscall++
609		next
610	}
611	type("UNIMPL") {
612		while (syscall <= syscall_range[2]) {
613			printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
614			    syscall, comment) > sysent
615			printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
616			    syscall, syscall, comment) > sysnames
617			syscall++
618		}
619		next
620	}
621	{
622		printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
623		exit 1
624	}
625	END {
626		printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
627
628		if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0 || ncompat10 != 0)
629			printf "#include \"opt_compat.h\"\n\n" > syssw
630
631		if (ncompat != 0) {
632			printf "\n#ifdef %s\n", compat > sysinc
633			printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
634			printf "#else\n" > sysinc
635			printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
636			printf "#endif\n" > sysinc
637		}
638
639		if (ncompat4 != 0) {
640			printf "\n#ifdef %s\n", compat4 > sysinc
641			printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
642			printf "#else\n" > sysinc
643			printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
644			printf "#endif\n" > sysinc
645		}
646
647		if (ncompat6 != 0) {
648			printf "\n#ifdef %s\n", compat6 > sysinc
649			printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
650			printf "#else\n" > sysinc
651			printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
652			printf "#endif\n" > sysinc
653		}
654
655		if (ncompat7 != 0) {
656			printf "\n#ifdef %s\n", compat7 > sysinc
657			printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
658			printf "#else\n" > sysinc
659			printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
660			printf "#endif\n" > sysinc
661		}
662		if (ncompat10 != 0) {
663			printf "\n#ifdef %s\n", compat10 > sysinc
664			printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
665			printf "#else\n" > sysinc
666			printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
667			printf "#endif\n" > sysinc
668		}
669		printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
670		printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
671		printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
672		printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
673		printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
674
675		printf("\n#undef PAD_\n") > sysprotoend
676		printf("#undef PADL_\n") > sysprotoend
677		printf("#undef PADR_\n") > sysprotoend
678		printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
679
680		printf("\n") > sysmk
681		printf("};\n") > sysent
682		printf("};\n") > sysnames
683		printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
684		    > syshdr
685		printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
686		printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
687		printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
688	} '
689
690cat $sysinc $sysent >> $syssw
691cat $sysarg $sysdcl \
692	$syscompat $syscompatdcl \
693	$syscompat4 $syscompat4dcl \
694	$syscompat6 $syscompat6dcl \
695	$syscompat7 $syscompat7dcl \
696	$syscompat10 $syscompat10dcl \
697	$sysaue $sysprotoend > $sysproto
698cat $systracetmp >> $systrace
699cat $systraceret >> $systrace
700
701