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
15 sysproto="../sys/sysproto.h"
16 sysproto_h=_SYS_SYSPROTO_H_
17 syshdr="../sys/syscall.h"
18 sysmk="../sys/syscall.mk"
22 namesname="syscallnames"
23 systrace="systrace_args.c"
26 sysaue="sysent.aue.$$"
27 sysdcl="sysent.dcl.$$"
28 syscompat="sysent.compat.$$"
29 syscompatdcl="sysent.compatdcl.$$"
30 syscompat4="sysent.compat4.$$"
31 syscompat4dcl="sysent.compat4dcl.$$"
32 syscompat6="sysent.compat6.$$"
33 syscompat6dcl="sysent.compat6dcl.$$"
34 syscompat7="sysent.compat7.$$"
35 syscompat7dcl="sysent.compat7dcl.$$"
36 sysent="sysent.switch.$$"
37 sysinc="sysinc.switch.$$"
38 sysarg="sysarg.switch.$$"
39 sysprotoend="sysprotoend.$$"
40 systracetmp="systrace.$$"
41 systraceret="systraceret.$$"
43 if [ -r capabilities.conf ]; then
44 capenabled=`cat capabilities.conf | grep -v "^#" | grep -v "^$"`
45 capenabled=`echo $capenabled | sed 's/ /,/g'`
50 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
52 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
55 0) echo "usage: $0 input-file <config-file>" 1>&2
73 /^#/!s/\([{}()*,]\)/ \1 /g
79 sysproto = \"$sysproto\"
80 sysprotoend = \"$sysprotoend\"
81 sysproto_h = \"$sysproto_h\"
82 syscompat = \"$syscompat\"
83 syscompatdcl = \"$syscompatdcl\"
84 syscompat4 = \"$syscompat4\"
85 syscompat4dcl = \"$syscompat4dcl\"
86 syscompat6 = \"$syscompat6\"
87 syscompat6dcl = \"$syscompat6dcl\"
88 syscompat7 = \"$syscompat7\"
89 syscompat7dcl = \"$syscompat7dcl\"
94 sysnames = \"$sysnames\"
97 systrace = \"$systrace\"
98 systracetmp = \"$systracetmp\"
99 systraceret = \"$systraceret\"
101 compat4 = \"$compat4\"
102 compat6 = \"$compat6\"
103 compat7 = \"$compat7\"
104 syscallprefix = \"$syscallprefix\"
105 switchname = \"$switchname\"
106 namesname = \"$namesname\"
108 capenabled_string = \"$capenabled\"
111 split(capenabled_string, capenabled, ",");
113 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
114 printf "struct sysent %s[] = {\n",switchname > sysent
116 printf "/*\n * System call switch table.\n *\n" > syssw
117 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
118 printf " * $%s$\n", "FreeBSD" > syssw
119 printf " */\n\n" > syssw
121 printf "/*\n * System call prototypes.\n *\n" > sysarg
122 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
123 printf " * $%s$\n", "FreeBSD" > sysarg
124 printf " */\n\n" > sysarg
125 printf "#ifndef %s\n", sysproto_h > sysarg
126 printf "#define\t%s\n\n", sysproto_h > sysarg
127 printf "#include <sys/signal.h>\n" > sysarg
128 printf "#include <sys/acl.h>\n" > sysarg
129 printf "#include <sys/cpuset.h>\n" > sysarg
130 printf "#include <sys/_ffcounter.h>\n" > sysarg
131 printf "#include <sys/_semaphore.h>\n" > sysarg
132 printf "#include <sys/ucontext.h>\n" > sysarg
133 printf "#include <sys/wait.h>\n\n" > sysarg
134 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
135 printf "struct proc;\n\n" > sysarg
136 printf "struct thread;\n\n" > sysarg
137 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
138 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
139 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
140 printf "#define\tPADL_(t)\t0\n" > sysarg
141 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
142 printf "#else\n" > sysarg
143 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
144 printf "#define\tPADR_(t)\t0\n" > sysarg
145 printf "#endif\n\n" > sysarg
147 printf "\n#ifdef %s\n\n", compat > syscompat
148 printf "\n#ifdef %s\n\n", compat4 > syscompat4
149 printf "\n#ifdef %s\n\n", compat6 > syscompat6
150 printf "\n#ifdef %s\n\n", compat7 > syscompat7
152 printf "/*\n * System call names.\n *\n" > sysnames
153 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
154 printf " * $%s$\n", "FreeBSD" > sysnames
155 printf " */\n\n" > sysnames
156 printf "const char *%s[] = {\n", namesname > sysnames
158 printf "/*\n * System call numbers.\n *\n" > syshdr
159 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
160 printf " * $%s$\n", "FreeBSD" > syshdr
161 printf " */\n\n" > syshdr
163 printf "# FreeBSD system call object files.\n" > sysmk
164 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
165 printf "# $%s$\n", "FreeBSD" > sysmk
166 printf "MIASM = " > sysmk
168 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
169 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
170 printf " * $%s$\n", "FreeBSD" > systrace
171 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
172 printf "static void\nsystrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)\n{\n" > systrace
173 printf "\tint64_t *iarg = (int64_t *) uarg;\n" > systrace
174 printf "\tswitch (sysnum) {\n" > systrace
176 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
177 printf "\tswitch (sysnum) {\n" > systracetmp
179 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
180 printf "\tswitch (sysnum) {\n" > systraceret
185 NF == 0 || $1 ~ /^;/ {
188 $1 ~ /^#[ ]*include/ {
204 savesyscall = syscall
219 syscall = savesyscall
237 printf "%s: line %d: syscall number out of sync at %d\n",
243 # Returns true if the type "name" is the first flag in the type field
244 function type(name, flags, n) {
245 n = split($3, flags, /\|/)
246 return (n > 0 && flags[1] == name)
248 # Returns true if the flag "name" is set in the type field
249 function flag(name, flags, i, n) {
250 n = split($3, flags, /\|/)
251 for (i = 1; i <= n; i++)
252 if (flags[i] == name)
256 function align_sysent_comment(column) {
257 printf("\t") > sysent
258 column = column + 8 - column % 8
259 while (column < 56) {
260 printf("\t") > sysent
264 function parserr(was, wanted) {
265 printf "%s: line %d: unexpected %s (expected %s)\n",
266 infile, NR, was, wanted
269 function parseline() {
270 f=4 # toss number, type, audit event
273 thr_flag = "SY_THR_STATIC"
274 if (flag("NOTSTATIC")) {
275 thr_flag = "SY_THR_ABSENT"
291 argssize = "AS(" $6 ")"
313 # We now know the func name, so define a flags field for it.
314 # Do this before any other processing as we may return early
317 for (cap in capenabled) {
318 if (funcname == capenabled[cap]) {
319 flags = "SYF_CAPENABLED";
325 if (argalias == "") {
326 argalias = funcname "_args"
328 argalias = "o" argalias
330 argalias = "freebsd4_" argalias
332 argalias = "freebsd6_" argalias
334 argalias = "freebsd7_" argalias
344 parserr($f, "argument definition")
352 while (f < end && $(f+1) != ",") {
353 if (argtype[argc] != "" && oldf != "*")
354 argtype[argc] = argtype[argc]" ";
355 argtype[argc] = argtype[argc]$f;
359 if (argtype[argc] == "")
360 parserr($f, "argument definition")
362 f += 2; # skip name, and any comma
365 argssize = "AS(" argalias ")"
369 for (i = 5; i <= NF; i++)
370 comment = comment " " $i
374 # The AUE_ audit event identifier.
387 type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
390 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
391 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
392 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
394 printf("\t\tswitch(ndx) {\n") > systracetmp
395 printf("\t\tstruct %s *p = params;\n", argalias) > systrace
396 for (i = 1; i <= argc; i++) {
398 sub("__restrict$", "", arg)
399 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systracetmp
400 if (index(arg, "*") > 0 || arg == "caddr_t")
401 printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
403 argname[i], arg) > systrace
404 else if (arg == "union l_semun")
405 printf("\t\tuarg[%d] = p->%s.buf; /* %s */\n", \
407 argname[i], arg) > systrace
408 else if (substr(arg, 1, 1) == "u" || arg == "size_t")
409 printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
411 argname[i], arg) > systrace
413 printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
415 argname[i], arg) > systrace
417 printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
419 printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
420 printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
421 printf("\t\tbreak;\n") > systraceret
423 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
424 printf("\t\tbreak;\n") > systracetmp
425 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
427 printf("struct %s {\n", argalias) > sysarg
428 for (i = 1; i <= argc; i++)
429 printf("\tchar %s_l_[PADL_(%s)]; " \
430 "%s %s; char %s_r_[PADR_(%s)];\n",
431 argname[i], argtype[i],
432 argtype[i], argname[i],
433 argname[i], argtype[i]) > sysarg
434 printf("};\n") > sysarg
436 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
437 printf("struct %s {\n\tregister_t dummy;\n};\n",
439 if (!flag("NOPROTO") && !flag("NODEF")) {
440 if (funcname == "nosys" || funcname == "lkmnosys" ||
441 funcname == "sysarch" || funcname ~ /^freebsd/ ||
442 funcname ~ /^linux/ || funcname ~ /^svr4/ ||
443 funcname ~ /^ibcs2/ || funcname ~ /^xenix/) {
444 printf("%s\t%s(struct thread *, struct %s *)",
445 rettype, funcname, argalias) > sysdcl
447 printf("%s\tsys_%s(struct thread *, struct %s *)",
448 rettype, funcname, argalias) > sysdcl
450 printf(";\n") > sysdcl
451 printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
452 funcalias, auditev) > sysaue
454 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
455 column = 8 + 2 + length(argssize) + 15
457 printf("lkmressys, AUE_NULL, NULL, 0, 0, %s, SY_THR_ABSENT },", flags) > sysent
458 column = column + length("lkmressys") + length("AUE_NULL") + 3
460 if (funcname == "nosys" || funcname == "sysarch" ||
461 funcname == "lkmnosys" || funcname ~ /^freebsd/ ||
462 funcname ~ /^linux/ || funcname ~ /^svr4/ ||
463 funcname ~ /^ibcs2/ || funcname ~ /^xenix/) {
464 printf("%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
465 column = column + length(funcname) + length(auditev) + length(flags) + 3
467 printf("sys_%s, %s, NULL, 0, 0, %s, %s },", funcname, auditev, flags, thr_flag) > sysent
468 column = column + length(funcname) + length(auditev) + length(flags) + 3 + 4
471 align_sysent_comment(column)
472 printf("/* %d = %s */\n", syscall, funcalias) > sysent
473 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
474 funcalias, syscall, funcalias) > sysnames
475 if (!flag("NODEF")) {
476 printf("#define\t%s%s\t%d\n", syscallprefix,
477 funcalias, syscall) > syshdr
478 printf(" \\\n\t%s.o", funcalias) > sysmk
483 type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
485 if (flag("COMPAT")) {
488 outdcl = syscompatdcl
492 } else if (flag("COMPAT4")) {
495 outdcl = syscompat4dcl
499 } else if (flag("COMPAT6")) {
502 outdcl = syscompat6dcl
506 } else if (flag("COMPAT7")) {
509 outdcl = syscompat7dcl
515 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
517 printf("struct %s {\n", argalias) > out
518 for (i = 1; i <= argc; i++)
519 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
520 "char %s_r_[PADR_(%s)];\n",
521 argname[i], argtype[i],
522 argtype[i], argname[i],
523 argname[i], argtype[i]) > out
526 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
527 printf("struct %s {\n\tregister_t dummy;\n};\n",
529 if (!flag("NOPROTO") && !flag("NODEF")) {
530 printf("%s\t%s%s(struct thread *, struct %s *);\n",
531 rettype, prefix, funcname, argalias) > outdcl
532 printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
533 prefix, funcname, auditev) > sysaue
536 printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0, SY_THR_ABSENT },",
537 "0", "lkmressys", "AUE_NULL") > sysent
538 align_sysent_comment(8 + 2 + length("0") + 15 + \
539 length("lkmressys") + length("AUE_NULL") + 3)
541 printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s, %s },",
542 wrap, argssize, funcname, auditev, flags, thr_flag) > sysent
543 align_sysent_comment(8 + 9 + length(argssize) + 1 + \
544 length(funcname) + length(auditev) + \
547 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
548 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
549 wrap, funcalias, syscall, descr, funcalias) > sysnames
550 if (flag("COMPAT")) {
551 printf("\t\t\t\t/* %d is old %s */\n",
552 syscall, funcalias) > syshdr
553 } else if (!flag("NODEF")) {
554 printf("#define\t%s%s%s\t%d\n", syscallprefix,
555 prefix, funcalias, syscall) > syshdr
556 printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
562 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },") > sysent
563 align_sysent_comment(34)
564 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
565 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
566 $4, syscall, comment) > sysnames
567 printf("\t\t\t\t/* %d is obsolete %s */\n",
568 syscall, comment) > syshdr
573 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
574 syscall, comment) > sysent
575 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
576 syscall, syscall, comment) > sysnames
581 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
585 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
587 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0)
588 printf "#include \"opt_compat.h\"\n\n" > syssw
591 printf "\n#ifdef %s\n", compat > sysinc
592 printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
593 printf "#else\n" > sysinc
594 printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
595 printf "#endif\n" > sysinc
599 printf "\n#ifdef %s\n", compat4 > sysinc
600 printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
601 printf "#else\n" > sysinc
602 printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
603 printf "#endif\n" > sysinc
607 printf "\n#ifdef %s\n", compat6 > sysinc
608 printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
609 printf "#else\n" > sysinc
610 printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
611 printf "#endif\n" > sysinc
615 printf "\n#ifdef %s\n", compat7 > sysinc
616 printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
617 printf "#else\n" > sysinc
618 printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
619 printf "#endif\n" > sysinc
622 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
623 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
624 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
625 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
627 printf("\n#undef PAD_\n") > sysprotoend
628 printf("#undef PADL_\n") > sysprotoend
629 printf("#undef PADR_\n") > sysprotoend
630 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
633 printf("};\n") > sysent
634 printf("};\n") > sysnames
635 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
637 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
638 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
639 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
642 cat $sysinc $sysent >> $syssw
643 cat $sysarg $sysdcl \
644 $syscompat $syscompatdcl \
645 $syscompat4 $syscompat4dcl \
646 $syscompat6 $syscompat6dcl \
647 $syscompat7 $syscompat7dcl \
648 $sysaue $sysprotoend > $sysproto
649 cat $systracetmp >> $systrace
650 cat $systraceret >> $systrace