2 # @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93
7 # name of compat options:
9 compat4=COMPAT_FREEBSD4
10 compat6=COMPAT_FREEBSD6
11 compat7=COMPAT_FREEBSD7
12 compat10=COMPAT_FREEBSD10
16 sysproto="../sys/sysproto.h"
17 sysproto_h=_SYS_SYSPROTO_H_
18 syshdr="../sys/syscall.h"
19 sysmk="../sys/syscall.mk"
23 namesname="syscallnames"
24 systrace="systrace_args.c"
27 sysaue="sysent.aue.$$"
28 sysdcl="sysent.dcl.$$"
29 syscompat="sysent.compat.$$"
30 syscompatdcl="sysent.compatdcl.$$"
31 syscompat4="sysent.compat4.$$"
32 syscompat4dcl="sysent.compat4dcl.$$"
33 syscompat6="sysent.compat6.$$"
34 syscompat6dcl="sysent.compat6dcl.$$"
35 syscompat7="sysent.compat7.$$"
36 syscompat7dcl="sysent.compat7dcl.$$"
37 syscompat10="sysent.compat10.$$"
38 syscompat10dcl="sysent.compat10dcl.$$"
39 sysent="sysent.switch.$$"
40 sysinc="sysinc.switch.$$"
41 sysarg="sysarg.switch.$$"
42 sysprotoend="sysprotoend.$$"
43 systracetmp="systrace.$$"
44 systraceret="systraceret.$$"
46 if [ -r capabilities.conf ]; then
47 capenabled=`cat capabilities.conf | grep -v "^#" | grep -v "^$"`
48 capenabled=`echo $capenabled | sed 's/ /,/g'`
53 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
55 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
58 0) echo "usage: $0 input-file <config-file>" 1>&2
76 /^#/!s/\([{}()*,]\)/ \1 /g
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 = \"$syscompat10dcl\"
99 sysnames = \"$sysnames\"
102 systrace = \"$systrace\"
103 systracetmp = \"$systracetmp\"
104 systraceret = \"$systraceret\"
106 compat4 = \"$compat4\"
107 compat6 = \"$compat6\"
108 compat7 = \"$compat7\"
109 compat10 = \"$compat10\"
110 syscallprefix = \"$syscallprefix\"
111 switchname = \"$switchname\"
112 namesname = \"$namesname\"
114 capenabled_string = \"$capenabled\"
117 split(capenabled_string, capenabled, ",");
119 printf "/*\n * System call switch table.\n *\n" > syssw
120 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
121 printf " * $%s$\n", "FreeBSD" > syssw
123 printf "/*\n * System call prototypes.\n *\n" > sysarg
124 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
125 printf " * $%s$\n", "FreeBSD" > sysarg
127 printf "\n#ifdef %s\n\n", compat > syscompat
128 printf "\n#ifdef %s\n\n", compat4 > syscompat4
129 printf "\n#ifdef %s\n\n", compat6 > syscompat6
130 printf "\n#ifdef %s\n\n", compat7 > syscompat7
131 printf "\n#ifdef %s\n\n", compat10 > syscompat10
133 printf "/*\n * System call names.\n *\n" > sysnames
134 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
135 printf " * $%s$\n", "FreeBSD" > sysnames
137 printf "/*\n * System call numbers.\n *\n" > syshdr
138 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
139 printf " * $%s$\n", "FreeBSD" > syshdr
140 printf "# FreeBSD system call object files.\n" > sysmk
141 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
142 printf "# $%s$\n", "FreeBSD" > sysmk
144 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
145 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
146 printf " * $%s$\n", "FreeBSD" > systrace
149 gsub("[$]FreeBSD: ", "FreeBSD: ", $0)
152 printf " * created from%s\n */\n\n", $0 > syssw
154 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
155 printf "struct sysent %s[] = {\n",switchname > sysent
157 printf " * created from%s\n */\n\n", $0 > sysarg
158 printf "#ifndef %s\n", sysproto_h > sysarg
159 printf "#define\t%s\n\n", sysproto_h > sysarg
160 printf "#include <sys/signal.h>\n" > sysarg
161 printf "#include <sys/acl.h>\n" > sysarg
162 printf "#include <sys/cpuset.h>\n" > sysarg
163 printf "#include <sys/_ffcounter.h>\n" > sysarg
164 printf "#include <sys/_semaphore.h>\n" > sysarg
165 printf "#include <sys/ucontext.h>\n" > sysarg
166 printf "#include <sys/wait.h>\n\n" > sysarg
167 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
168 printf "struct proc;\n\n" > sysarg
169 printf "struct thread;\n\n" > sysarg
170 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
171 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
172 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
173 printf "#define\tPADL_(t)\t0\n" > sysarg
174 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
175 printf "#else\n" > sysarg
176 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
177 printf "#define\tPADR_(t)\t0\n" > sysarg
178 printf "#endif\n\n" > sysarg
180 printf " * created from%s\n */\n\n", $0 > sysnames
181 printf "const char *%s[] = {\n", namesname > sysnames
183 printf " * created from%s\n */\n\n", $0 > syshdr
185 printf "# created from%s\nMIASM = ", $0 > sysmk
187 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
188 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
189 printf "\tint64_t *iarg = (int64_t *) uarg;\n" > systrace
190 printf "\tswitch (sysnum) {\n" > systrace
192 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
193 printf "\tswitch (sysnum) {\n" > systracetmp
195 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
196 printf "\tswitch (sysnum) {\n" > systraceret
200 NF == 0 || $1 ~ /^;/ {
203 $1 ~ /^#[ ]*include/ {
220 savesyscall = syscall
236 syscall = savesyscall
255 printf "%s: line %d: syscall number out of sync at %d\n",
261 # Returns true if the type "name" is the first flag in the type field
262 function type(name, flags, n) {
263 n = split($3, flags, /\|/)
264 return (n > 0 && flags[1] == name)
266 # Returns true if the flag "name" is set in the type field
267 function flag(name, flags, i, n) {
268 n = split($3, flags, /\|/)
269 for (i = 1; i <= n; i++)
270 if (flags[i] == name)
274 function align_sysent_comment(column) {
275 printf("\t") > sysent
276 column = column + 8 - column % 8
277 while (column < 56) {
278 printf("\t") > sysent
282 function parserr(was, wanted) {
283 printf "%s: line %d: unexpected %s (expected %s)\n",
284 infile, NR, was, wanted
287 function parseline() {
288 f=4 # toss number, type, audit event
291 thr_flag = "SY_THR_STATIC"
292 if (flag("NOTSTATIC")) {
293 thr_flag = "SY_THR_ABSENT"
309 argssize = "AS(" $6 ")"
331 # We now know the func name, so define a flags field for it.
332 # Do this before any other processing as we may return early
335 for (cap in capenabled) {
336 if (funcname == capenabled[cap]) {
337 flags = "SYF_CAPENABLED";
344 if (argalias == "") {
345 argalias = funcname "_args"
347 argalias = "o" argalias
349 argalias = "freebsd4_" argalias
351 argalias = "freebsd6_" argalias
353 argalias = "freebsd7_" argalias
354 if (flag("COMPAT10"))
355 argalias = "freebsd10_" argalias
365 parserr($f, "argument definition")
373 while (f < end && $(f+1) != ",") {
374 if (argtype[argc] != "" && oldf != "*")
375 argtype[argc] = argtype[argc]" ";
376 argtype[argc] = argtype[argc]$f;
380 if (argtype[argc] == "")
381 parserr($f, "argument definition")
383 f += 2; # skip name, and any comma
386 argssize = "AS(" argalias ")"
390 for (i = 5; i <= NF; i++)
391 comment = comment " " $i
395 # The AUE_ audit event identifier.
408 type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
411 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
412 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
413 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
415 printf("\t\tswitch(ndx) {\n") > systracetmp
416 printf("\t\tstruct %s *p = params;\n", argalias) > systrace
417 for (i = 1; i <= argc; i++) {
419 sub("__restrict$", "", arg)
420 if (index(arg, "*") > 0)
421 printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
423 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
424 if (index(arg, "*") > 0 || arg == "caddr_t")
425 printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
427 argname[i], arg) > systrace
428 else if (arg == "union l_semun")
429 printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
431 argname[i], arg) > systrace
432 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
433 printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
435 argname[i], arg) > systrace
437 printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
439 argname[i], arg) > systrace
441 printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
443 printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
444 printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
445 printf("\t\tbreak;\n") > systraceret
447 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
448 printf("\t\tbreak;\n") > systracetmp
449 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
451 printf("struct %s {\n", argalias) > sysarg
452 for (i = 1; i <= argc; i++)
453 printf("\tchar %s_l_[PADL_(%s)]; " \
454 "%s %s; char %s_r_[PADR_(%s)];\n",
455 argname[i], argtype[i],
456 argtype[i], argname[i],
457 argname[i], argtype[i]) > sysarg
458 printf("};\n") > sysarg
460 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
461 printf("struct %s {\n\tregister_t dummy;\n};\n",
463 if (!flag("NOPROTO") && !flag("NODEF")) {
464 if (funcname == "nosys" || funcname == "lkmnosys" ||
465 funcname == "sysarch" || funcname ~ /^freebsd/ ||
466 funcname ~ /^linux/ || funcname ~ /^svr4/ ||
467 funcname ~ /^ibcs2/ || funcname ~ /^xenix/ ||
468 funcname ~ /^cloudabi/) {
469 printf("%s\t%s(struct thread *, struct %s *)",
470 rettype, funcname, argalias) > sysdcl
472 printf("%s\tsys_%s(struct thread *, struct %s *)",
473 rettype, funcname, argalias) > sysdcl
475 printf(";\n") > sysdcl
476 printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
477 funcalias, auditev) > sysaue
479 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
480 column = 8 + 2 + length(argssize) + 15
482 printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
483 column = column + length("lkmressys") + length("AUE_NULL") + 3
485 if (funcname == "nosys" || funcname == "sysarch" ||
486 funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
487 funcname ~ /^linux/ || funcname ~ /^svr4/ ||
488 funcname ~ /^ibcs2/ || funcname ~ /^xenix/ ||
489 funcname ~ /^cloudabi/) {
490 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
491 column = column + length(funcname) + length(auditev) + length(flags) + 3
493 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
494 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
497 align_sysent_comment(column)
498 printf("/* %d = %s */\n", syscall, funcalias) > sysent
499 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
500 funcalias, syscall, funcalias) > sysnames
501 if (!flag("NODEF")) {
502 printf("#define\t%s%s\t%d\n", syscallprefix,
503 funcalias, syscall) > syshdr
504 printf(" \\\n\t%s.o", funcalias) > sysmk
509 type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
510 type("COMPAT7") || type("COMPAT10") {
511 if (flag("COMPAT")) {
514 outdcl = syscompatdcl
518 } else if (flag("COMPAT4")) {
521 outdcl = syscompat4dcl
525 } else if (flag("COMPAT6")) {
528 outdcl = syscompat6dcl
532 } else if (flag("COMPAT7")) {
535 outdcl = syscompat7dcl
539 } else if (flag("COMPAT10")) {
542 outdcl = syscompat10dcl
544 prefix = "freebsd10_"
548 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
550 printf("struct %s {\n", argalias) > out
551 for (i = 1; i <= argc; i++)
552 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
553 "char %s_r_[PADR_(%s)];\n",
554 argname[i], argtype[i],
555 argtype[i], argname[i],
556 argname[i], argtype[i]) > out
559 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
560 printf("struct %s {\n\tregister_t dummy;\n};\n",
562 if (!flag("NOPROTO") && !flag("NODEF")) {
563 printf("%s\t%s%s(struct thread *, struct %s *);\n",
564 rettype, prefix, funcname, argalias) > outdcl
565 printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
566 prefix, funcname, auditev) > sysaue
569 printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
570 "0", "lkmressys", "AUE_NULL") > sysent
571 align_sysent_comment(8 + 2 + length("0") + 15 + \
572 length("lkmressys") + length("AUE_NULL") + 3)
574 printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
575 wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
576 align_sysent_comment(8 + 9 + length(argssize) + 1 + \
577 length(funcname) + length(auditev) + \
580 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
581 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
582 wrap, funcalias, syscall, descr, funcalias) > sysnames
583 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
584 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
585 printf("\t\t\t\t/* %d is %s %s */\n",
586 syscall, descr, funcalias) > syshdr
587 } else if (!flag("NODEF")) {
588 printf("#define\t%s%s%s\t%d\n", syscallprefix,
589 prefix, funcalias, syscall) > syshdr
590 printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
596 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
597 align_sysent_comment(34)
598 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
599 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
600 $4, syscall, comment) > sysnames
601 printf("\t\t\t\t/* %d is obsolete %s */\n",
602 syscall, comment) > syshdr
607 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
608 syscall, comment) > sysent
609 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
610 syscall, syscall, comment) > sysnames
615 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
619 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
621 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0 || ncompat10 != 0)
622 printf "#include \"opt_compat.h\"\n\n" > syssw
625 printf "\n#ifdef %s\n", compat > sysinc
626 printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
627 printf "#else\n" > sysinc
628 printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
629 printf "#endif\n" > sysinc
633 printf "\n#ifdef %s\n", compat4 > sysinc
634 printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
635 printf "#else\n" > sysinc
636 printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
637 printf "#endif\n" > sysinc
641 printf "\n#ifdef %s\n", compat6 > sysinc
642 printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
643 printf "#else\n" > sysinc
644 printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
645 printf "#endif\n" > sysinc
649 printf "\n#ifdef %s\n", compat7 > sysinc
650 printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
651 printf "#else\n" > sysinc
652 printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
653 printf "#endif\n" > sysinc
655 if (ncompat10 != 0) {
656 printf "\n#ifdef %s\n", compat10 > sysinc
657 printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
658 printf "#else\n" > sysinc
659 printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
660 printf "#endif\n" > sysinc
662 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
663 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
664 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
665 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
666 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
668 printf("\n#undef PAD_\n") > sysprotoend
669 printf("#undef PADL_\n") > sysprotoend
670 printf("#undef PADR_\n") > sysprotoend
671 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
674 printf("};\n") > sysent
675 printf("};\n") > sysnames
676 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
678 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
679 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
680 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
683 cat $sysinc $sysent >> $syssw
684 cat $sysarg $sysdcl \
685 $syscompat $syscompatdcl \
686 $syscompat4 $syscompat4dcl \
687 $syscompat6 $syscompat6dcl \
688 $syscompat7 $syscompat7dcl \
689 $syscompat10 $syscompat10dcl \
690 $sysaue $sysprotoend > $sysproto
691 cat $systracetmp >> $systrace
692 cat $systraceret >> $systrace