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
13 compat11=COMPAT_FREEBSD11
17 sysproto="../sys/sysproto.h"
18 sysproto_h=_SYS_SYSPROTO_H_
19 syshdr="../sys/syscall.h"
20 sysmk="../sys/syscall.mk"
24 namesname="syscallnames"
25 systrace="systrace_args.c"
28 sysaue="sysent.aue.$$"
29 sysdcl="sysent.dcl.$$"
30 syscompat="sysent.compat.$$"
31 syscompatdcl="sysent.compatdcl.$$"
32 syscompat4="sysent.compat4.$$"
33 syscompat4dcl="sysent.compat4dcl.$$"
34 syscompat6="sysent.compat6.$$"
35 syscompat6dcl="sysent.compat6dcl.$$"
36 syscompat7="sysent.compat7.$$"
37 syscompat7dcl="sysent.compat7dcl.$$"
38 syscompat10="sysent.compat10.$$"
39 syscompat10dcl="sysent.compat10dcl.$$"
40 syscompat11="sysent.compat11.$$"
41 syscompat11dcl="sysent.compat11dcl.$$"
42 sysent="sysent.switch.$$"
43 sysinc="sysinc.switch.$$"
44 sysarg="sysarg.switch.$$"
45 sysprotoend="sysprotoend.$$"
46 systracetmp="systrace.$$"
47 systraceret="systraceret.$$"
49 if [ -r capabilities.conf ]; then
50 capenabled=`egrep -v '^#|^$' capabilities.conf`
51 capenabled=`echo $capenabled | sed 's/ /,/g'`
56 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
58 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $syscompat10 $syscompat10dcl $syscompat11 $syscompat11dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
61 0) echo "usage: $0 input-file <config-file>" 1>&2
79 /^#/!s/\([{}()*,]\)/ \1 /g
85 sysproto = \"$sysproto\"
86 sysprotoend = \"$sysprotoend\"
87 sysproto_h = \"$sysproto_h\"
88 syscompat = \"$syscompat\"
89 syscompatdcl = \"$syscompatdcl\"
90 syscompat4 = \"$syscompat4\"
91 syscompat4dcl = \"$syscompat4dcl\"
92 syscompat6 = \"$syscompat6\"
93 syscompat6dcl = \"$syscompat6dcl\"
94 syscompat7 = \"$syscompat7\"
95 syscompat7dcl = \"$syscompat7dcl\"
96 syscompat10 = \"$syscompat10\"
97 syscompat10dcl = \"$syscompat10dcl\"
98 syscompat11 = \"$syscompat11\"
99 syscompat11dcl = \"$syscompat11dcl\"
104 sysnames = \"$sysnames\"
107 systrace = \"$systrace\"
108 systracetmp = \"$systracetmp\"
109 systraceret = \"$systraceret\"
111 compat4 = \"$compat4\"
112 compat6 = \"$compat6\"
113 compat7 = \"$compat7\"
114 compat10 = \"$compat10\"
115 compat11 = \"$compat11\"
116 syscallprefix = \"$syscallprefix\"
117 switchname = \"$switchname\"
118 namesname = \"$namesname\"
120 capenabled_string = \"$capenabled\"
123 split(capenabled_string, capenabled, ",");
125 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
126 printf "struct sysent %s[] = {\n",switchname > sysent
128 printf "/*\n * System call switch table.\n *\n" > syssw
129 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
130 printf " * $%s$\n", "FreeBSD" > syssw
131 printf " */\n\n" > syssw
133 printf "/*\n * System call prototypes.\n *\n" > sysarg
134 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
135 printf " * $%s$\n", "FreeBSD" > sysarg
136 printf " */\n\n" > sysarg
137 printf "#ifndef %s\n", sysproto_h > sysarg
138 printf "#define\t%s\n\n", sysproto_h > sysarg
139 printf "#include <sys/signal.h>\n" > sysarg
140 printf "#include <sys/acl.h>\n" > sysarg
141 printf "#include <sys/cpuset.h>\n" > sysarg
142 printf "#include <sys/domainset.h>\n" > sysarg
143 printf "#include <sys/_ffcounter.h>\n" > sysarg
144 printf "#include <sys/_semaphore.h>\n" > sysarg
145 printf "#include <sys/ucontext.h>\n" > sysarg
146 printf "#include <sys/wait.h>\n\n" > sysarg
147 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
148 printf "struct proc;\n\n" > sysarg
149 printf "struct thread;\n\n" > sysarg
150 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
151 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
152 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
153 printf "#define\tPADL_(t)\t0\n" > sysarg
154 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
155 printf "#else\n" > sysarg
156 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
157 printf "#define\tPADR_(t)\t0\n" > sysarg
158 printf "#endif\n\n" > sysarg
160 printf "\n#ifdef %s\n\n", compat > syscompat
161 printf "\n#ifdef %s\n\n", compat4 > syscompat4
162 printf "\n#ifdef %s\n\n", compat6 > syscompat6
163 printf "\n#ifdef %s\n\n", compat7 > syscompat7
164 printf "\n#ifdef %s\n\n", compat10 > syscompat10
165 printf "\n#ifdef %s\n\n", compat11 > syscompat11
167 printf "/*\n * System call names.\n *\n" > sysnames
168 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
169 printf " * $%s$\n", "FreeBSD" > sysnames
170 printf " */\n\n" > sysnames
171 printf "const char *%s[] = {\n", namesname > sysnames
173 printf "/*\n * System call numbers.\n *\n" > syshdr
174 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
175 printf " * $%s$\n", "FreeBSD" > syshdr
176 printf " */\n\n" > syshdr
178 printf "# FreeBSD system call object files.\n" > sysmk
179 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
180 printf "# $%s$\n", "FreeBSD" > sysmk
181 printf "MIASM = " > sysmk
183 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
184 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
185 printf " * $%s$\n", "FreeBSD" > systrace
186 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
187 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
188 printf "\tint64_t *iarg = (int64_t *) uarg;\n" > systrace
189 printf "\tswitch (sysnum) {\n" > systrace
191 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
192 printf "\tswitch (sysnum) {\n" > systracetmp
194 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
195 printf "\tswitch (sysnum) {\n" > systraceret
200 NF == 0 || $1 ~ /^;/ {
203 $1 ~ /^#[ ]*include/ {
221 savesyscall = syscall
238 syscall = savesyscall
257 # Returns true if the type "name" is the first flag in the type field
258 function type(name, flags, n) {
259 n = split($3, flags, /\|/)
260 return (n > 0 && flags[1] == name)
262 # Returns true if the flag "name" is set in the type field
263 function flag(name, flags, i, n) {
264 n = split($3, flags, /\|/)
265 for (i = 1; i <= n; i++)
266 if (flags[i] == name)
271 n = split($1, syscall_range, /-/)
273 syscall_range[2] = syscall_range[1]
275 if (!type("UNIMPL")) {
276 printf "%s: line %d: range permitted only with UNIMPL\n",
281 printf "%s: line %d: invalid syscall number or range %s\n",
286 syscall != syscall_range[1] {
287 printf "%s: line %d: syscall number out of sync at %d\n",
293 function align_sysent_comment(column) {
294 printf("\t") > sysent
295 column = column + 8 - column % 8
296 while (column < 56) {
297 printf("\t") > sysent
301 function parserr(was, wanted) {
302 printf "%s: line %d: unexpected %s (expected %s)\n",
303 infile, NR, was, wanted
306 function parseline() {
307 f=4 # toss number, type, audit event
310 thr_flag = "SY_THR_STATIC"
311 if (flag("NOTSTATIC")) {
312 thr_flag = "SY_THR_ABSENT"
328 argssize = "AS(" $6 ")"
350 # We now know the func name, so define a flags field for it.
351 # Do this before any other processing as we may return early
354 for (cap in capenabled) {
355 if (funcname == capenabled[cap]) {
356 flags = "SYF_CAPENABLED";
363 if (argalias == "") {
364 argalias = funcname "_args"
366 argalias = "o" argalias
368 argalias = "freebsd4_" argalias
370 argalias = "freebsd6_" argalias
372 argalias = "freebsd7_" argalias
373 if (flag("COMPAT10"))
374 argalias = "freebsd10_" argalias
375 if (flag("COMPAT11"))
376 argalias = "freebsd11_" argalias
386 parserr($f, "argument definition")
394 while (f < end && $(f+1) != ",") {
395 if (argtype[argc] != "" && oldf != "*")
396 argtype[argc] = argtype[argc]" ";
397 argtype[argc] = argtype[argc]$f;
401 if (argtype[argc] == "")
402 parserr($f, "argument definition")
404 # The parser adds space around parens.
405 # Remove it from annotations.
406 gsub(/ \( /, "(", argtype[argc]);
407 gsub(/ \)/, ")", argtype[argc]);
410 gsub(/_In[^ ]*[_)] /, "", argtype[argc]);
411 gsub(/_Out[^ ]*[_)] /, "", argtype[argc]);
414 f += 2; # skip name, and any comma
417 argssize = "AS(" argalias ")"
421 for (i = 5; i <= NF; i++)
422 comment = comment " " $i
426 # The AUE_ audit event identifier.
439 type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
442 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
443 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
444 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
446 printf("\t\tswitch(ndx) {\n") > systracetmp
447 printf("\t\tstruct %s *p = params;\n", argalias) > systrace
448 for (i = 1; i <= argc; i++) {
450 sub("__restrict$", "", arg)
451 if (index(arg, "*") > 0)
452 printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
454 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
455 if (index(arg, "*") > 0 || arg == "caddr_t")
456 printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
458 argname[i], arg) > systrace
459 else if (arg == "union l_semun")
460 printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
462 argname[i], arg) > systrace
463 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
464 printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
466 argname[i], arg) > systrace
468 printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
470 argname[i], arg) > systrace
472 printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
474 printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
475 printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
476 printf("\t\tbreak;\n") > systraceret
478 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
479 printf("\t\tbreak;\n") > systracetmp
480 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
482 printf("struct %s {\n", argalias) > sysarg
483 for (i = 1; i <= argc; i++)
484 printf("\tchar %s_l_[PADL_(%s)]; " \
485 "%s %s; char %s_r_[PADR_(%s)];\n",
486 argname[i], argtype[i],
487 argtype[i], argname[i],
488 argname[i], argtype[i]) > sysarg
489 printf("};\n") > sysarg
491 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
492 printf("struct %s {\n\tregister_t dummy;\n};\n",
494 if (!flag("NOPROTO") && !flag("NODEF")) {
495 if (funcname == "nosys" || funcname == "lkmnosys" ||
496 funcname == "sysarch" || funcname ~ /^freebsd/ ||
497 funcname ~ /^linux/ || funcname ~ /^ibcs2/ ||
498 funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
499 printf("%s\t%s(struct thread *, struct %s *)",
500 rettype, funcname, argalias) > sysdcl
502 printf("%s\tsys_%s(struct thread *, struct %s *)",
503 rettype, funcname, argalias) > sysdcl
505 printf(";\n") > sysdcl
506 printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
507 funcalias, auditev) > sysaue
509 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
510 column = 8 + 2 + length(argssize) + 15
512 printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
513 column = column + length("lkmressys") + length("AUE_NULL") + 3
515 if (funcname == "nosys" || funcname == "sysarch" ||
516 funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
517 funcname ~ /^linux/ || funcname ~ /^ibcs2/ ||
518 funcname ~ /^xenix/ || funcname ~ /^cloudabi/) {
519 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
520 column = column + length(funcname) + length(auditev) + length(flags) + 3
522 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
523 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
526 align_sysent_comment(column)
527 printf("/* %d = %s */\n", syscall, funcalias) > sysent
528 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
529 funcalias, syscall, funcalias) > sysnames
530 if (!flag("NODEF")) {
531 printf("#define\t%s%s\t%d\n", syscallprefix,
532 funcalias, syscall) > syshdr
533 printf(" \\\n\t%s.o", funcalias) > sysmk
538 type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
539 type("COMPAT7") || type("COMPAT10") || type("COMPAT11") {
540 if (flag("COMPAT")) {
543 outdcl = syscompatdcl
547 } else if (flag("COMPAT4")) {
550 outdcl = syscompat4dcl
554 } else if (flag("COMPAT6")) {
557 outdcl = syscompat6dcl
561 } else if (flag("COMPAT7")) {
564 outdcl = syscompat7dcl
568 } else if (flag("COMPAT10")) {
571 outdcl = syscompat10dcl
573 prefix = "freebsd10_"
575 } else if (flag("COMPAT11")) {
578 outdcl = syscompat11dcl
580 prefix = "freebsd11_"
584 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
586 printf("struct %s {\n", argalias) > out
587 for (i = 1; i <= argc; i++)
588 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
589 "char %s_r_[PADR_(%s)];\n",
590 argname[i], argtype[i],
591 argtype[i], argname[i],
592 argname[i], argtype[i]) > out
595 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
596 printf("struct %s {\n\tregister_t dummy;\n};\n",
598 if (!flag("NOPROTO") && !flag("NODEF")) {
599 printf("%s\t%s%s(struct thread *, struct %s *);\n",
600 rettype, prefix, funcname, argalias) > outdcl
601 printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
602 prefix, funcname, auditev) > sysaue
605 printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
606 "0", "lkmressys", "AUE_NULL") > sysent
607 align_sysent_comment(8 + 2 + length("0") + 15 + \
608 length("lkmressys") + length("AUE_NULL") + 3)
610 printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
611 wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
612 align_sysent_comment(8 + 9 + length(argssize) + 1 + \
613 length(funcname) + length(auditev) + \
616 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
617 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
618 wrap, funcalias, syscall, descr, funcalias) > sysnames
619 # Do not provide freebsdN_* symbols in libc for < FreeBSD 7
620 if (flag("COMPAT") || flag("COMPAT4") || flag("COMPAT6")) {
621 printf("\t\t\t\t/* %d is %s %s */\n",
622 syscall, descr, funcalias) > syshdr
623 } else if (!flag("NODEF")) {
624 printf("#define\t%s%s%s\t%d\n", syscallprefix,
625 prefix, funcalias, syscall) > syshdr
626 printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
632 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
633 align_sysent_comment(34)
634 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
635 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
636 $4, syscall, comment) > sysnames
637 printf("\t\t\t\t/* %d is obsolete %s */\n",
638 syscall, comment) > syshdr
643 while (syscall <= syscall_range[2]) {
644 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
645 syscall, comment) > sysent
646 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
647 syscall, syscall, comment) > sysnames
653 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
657 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
660 printf "\n#ifdef %s\n", compat > sysinc
661 printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
662 printf "#else\n" > sysinc
663 printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
664 printf "#endif\n" > sysinc
668 printf "\n#ifdef %s\n", compat4 > sysinc
669 printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
670 printf "#else\n" > sysinc
671 printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
672 printf "#endif\n" > sysinc
676 printf "\n#ifdef %s\n", compat6 > sysinc
677 printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
678 printf "#else\n" > sysinc
679 printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
680 printf "#endif\n" > sysinc
684 printf "\n#ifdef %s\n", compat7 > sysinc
685 printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
686 printf "#else\n" > sysinc
687 printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
688 printf "#endif\n" > sysinc
690 if (ncompat10 != 0) {
691 printf "\n#ifdef %s\n", compat10 > sysinc
692 printf "#define compat10(n, name) n, (sy_call_t *)__CONCAT(freebsd10_,name)\n" > sysinc
693 printf "#else\n" > sysinc
694 printf "#define compat10(n, name) 0, (sy_call_t *)nosys\n" > sysinc
695 printf "#endif\n" > sysinc
697 if (ncompat11 != 0) {
698 printf "\n#ifdef %s\n", compat11 > sysinc
699 printf "#define compat11(n, name) n, (sy_call_t *)__CONCAT(freebsd11_,name)\n" > sysinc
700 printf "#else\n" > sysinc
701 printf "#define compat11(n, name) 0, (sy_call_t *)nosys\n" > sysinc
702 printf "#endif\n" > sysinc
705 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
706 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
707 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
708 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
709 printf("\n#endif /* %s */\n\n", compat10) > syscompat10dcl
710 printf("\n#endif /* %s */\n\n", compat11) > syscompat11dcl
712 printf("\n#undef PAD_\n") > sysprotoend
713 printf("#undef PADL_\n") > sysprotoend
714 printf("#undef PADR_\n") > sysprotoend
715 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
718 printf("};\n") > sysent
719 printf("};\n") > sysnames
720 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
722 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
723 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
724 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
727 cat $sysinc $sysent >> $syssw
728 cat $sysarg $sysdcl \
729 $syscompat $syscompatdcl \
730 $syscompat4 $syscompat4dcl \
731 $syscompat6 $syscompat6dcl \
732 $syscompat7 $syscompat7dcl \
733 $syscompat10 $syscompat10dcl \
734 $syscompat11 $syscompat11dcl \
735 $sysaue $sysprotoend > $sysproto
736 cat $systracetmp >> $systrace
737 cat $systraceret >> $systrace