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.$$"
42 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp" 0
44 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp
47 0) echo "usage: $0 input-file <config-file>" 1>&2
52 if [ -n "$2" -a -f "$2" ]; then
66 /^#/!s/\([{}()*,]\)/ \1 /g
72 sysproto = \"$sysproto\"
73 sysprotoend = \"$sysprotoend\"
74 sysproto_h = \"$sysproto_h\"
75 syscompat = \"$syscompat\"
76 syscompatdcl = \"$syscompatdcl\"
77 syscompat4 = \"$syscompat4\"
78 syscompat4dcl = \"$syscompat4dcl\"
79 syscompat6 = \"$syscompat6\"
80 syscompat6dcl = \"$syscompat6dcl\"
81 syscompat7 = \"$syscompat7\"
82 syscompat7dcl = \"$syscompat7dcl\"
87 sysnames = \"$sysnames\"
90 systrace = \"$systrace\"
91 systracetmp = \"$systracetmp\"
93 compat4 = \"$compat4\"
94 compat6 = \"$compat6\"
95 compat7 = \"$compat7\"
96 syscallprefix = \"$syscallprefix\"
97 switchname = \"$switchname\"
98 namesname = \"$namesname\"
102 printf "/*\n * System call switch table.\n *\n" > syssw
103 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
104 printf " * $%s$\n", "FreeBSD" > syssw
106 printf "/*\n * System call prototypes.\n *\n" > sysarg
107 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
108 printf " * $%s$\n", "FreeBSD" > sysarg
110 printf "\n#ifdef %s\n\n", compat > syscompat
111 printf "\n#ifdef %s\n\n", compat4 > syscompat4
112 printf "\n#ifdef %s\n\n", compat6 > syscompat6
113 printf "\n#ifdef %s\n\n", compat7 > syscompat7
115 printf "/*\n * System call names.\n *\n" > sysnames
116 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
117 printf " * $%s$\n", "FreeBSD" > sysnames
119 printf "/*\n * System call numbers.\n *\n" > syshdr
120 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
121 printf " * $%s$\n", "FreeBSD" > syshdr
122 printf "# FreeBSD system call names.\n" > sysmk
123 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
124 printf "# $%s$\n", "FreeBSD" > sysmk
126 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
127 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
128 printf " * $%s$\n", "FreeBSD" > systrace
131 gsub("[$]FreeBSD: ", "", $0)
134 printf " * created from%s\n */\n\n", $0 > syssw
136 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
137 printf "struct sysent %s[] = {\n",switchname > sysent
139 printf " * created from%s\n */\n\n", $0 > sysarg
140 printf "#ifndef %s\n", sysproto_h > sysarg
141 printf "#define\t%s\n\n", sysproto_h > sysarg
142 printf "#include <sys/signal.h>\n" > sysarg
143 printf "#include <sys/acl.h>\n" > sysarg
144 printf "#include <sys/cpuset.h>\n" > sysarg
145 printf "#include <sys/_semaphore.h>\n" > sysarg
146 printf "#include <sys/ucontext.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 " * created from%s\n */\n\n", $0 > sysnames
161 printf "const char *%s[] = {\n", namesname > sysnames
163 printf " * created from%s\n */\n\n", $0 > syshdr
165 printf "# created from%s\nMIASM = ", $0 > sysmk
167 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
168 printf "static void\nsystrace_args(int sysnum, void *params, u_int64_t *uarg, int *n_args)\n{\n" > systrace
169 printf "\tint64_t *iarg = (int64_t *) uarg;\n" > systrace
170 printf "\tswitch (sysnum) {\n" > systrace
172 printf "static void\nsystrace_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
173 printf "\tswitch (sysnum) {\n" > systracetmp
177 NF == 0 || $1 ~ /^;/ {
180 $1 ~ /^#[ ]*include/ {
195 savesyscall = syscall
209 syscall = savesyscall
226 printf "%s: line %d: syscall number out of sync at %d\n",
232 # Returns true if the type "name" is the first flag in the type field
233 function type(name, flags, n) {
234 n = split($3, flags, /\|/)
235 return (n > 0 && flags[1] == name)
237 # Returns true if the flag "name" is set in the type field
238 function flag(name, flags, i, n) {
239 n = split($3, flags, /\|/)
240 for (i = 1; i <= n; i++)
241 if (flags[i] == name)
245 function align_sysent_comment(column) {
246 printf("\t") > sysent
247 column = column + 8 - column % 8
248 while (column < 56) {
249 printf("\t") > sysent
253 function parserr(was, wanted) {
254 printf "%s: line %d: unexpected %s (expected %s)\n",
255 infile, NR, was, wanted
258 function parseline() {
259 f=4 # toss number, type, audit event
276 argssize = "AS(" $6 ")"
292 f++ #function return type
297 if (argalias == "") {
298 argalias = funcname "_args"
300 argalias = "o" argalias
302 argalias = "freebsd4_" argalias
304 argalias = "freebsd6_" argalias
306 argalias = "freebsd7_" argalias
316 parserr($f, "argument definition")
324 while (f < end && $(f+1) != ",") {
325 if (argtype[argc] != "" && oldf != "*")
326 argtype[argc] = argtype[argc]" ";
327 argtype[argc] = argtype[argc]$f;
331 if (argtype[argc] == "")
332 parserr($f, "argument definition")
334 f += 2; # skip name, and any comma
337 argssize = "AS(" argalias ")"
341 for (i = 5; i <= NF; i++)
342 comment = comment " " $i
346 # The AUE_ audit event identifier.
353 # The currently-empty flags field.
359 type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
362 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
363 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
365 printf("\t\tswitch(ndx) {\n") > systracetmp
366 printf("\t\tstruct %s *p = params;\n", argalias) > systrace
367 for (i = 1; i <= argc; i++) {
368 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, argtype[i]) > systracetmp
369 if (index(argtype[i], "*") > 0 || argtype[i] == "caddr_t")
370 printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
372 argname[i], argtype[i]) > systrace
373 else if (substr(argtype[i], 1, 1) == "u" || argtype[i] == "size_t")
374 printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
376 argname[i], argtype[i]) > systrace
378 printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
380 argname[i], argtype[i]) > systrace
382 printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
384 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
385 printf("\t\tbreak;\n") > systracetmp
386 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
388 printf("struct %s {\n", argalias) > sysarg
389 for (i = 1; i <= argc; i++)
390 printf("\tchar %s_l_[PADL_(%s)]; " \
391 "%s %s; char %s_r_[PADR_(%s)];\n",
392 argname[i], argtype[i],
393 argtype[i], argname[i],
394 argname[i], argtype[i]) > sysarg
395 printf("};\n") > sysarg
397 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
398 printf("struct %s {\n\tregister_t dummy;\n};\n",
400 if (!flag("NOPROTO") && !flag("NODEF")) {
401 printf("%s\t%s(struct thread *, struct %s *)",
402 rettype, funcname, argalias) > sysdcl
403 printf(";\n") > sysdcl
404 printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
405 funcalias, auditev) > sysaue
407 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
408 column = 8 + 2 + length(argssize) + 15
410 printf("%s },", "lkmressys, AUE_NULL, NULL, 0, 0, 0") > sysent
411 column = column + length("lkmressys") + length("AUE_NULL") + 3
413 printf("%s, %s, NULL, 0, 0, %s },", funcname, auditev, flags) > sysent
414 column = column + length(funcname) + length(auditev) + length(flags) + 3
416 align_sysent_comment(column)
417 printf("/* %d = %s */\n", syscall, funcalias) > sysent
418 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
419 funcalias, syscall, funcalias) > sysnames
420 if (!flag("NODEF")) {
421 printf("#define\t%s%s\t%d\n", syscallprefix,
422 funcalias, syscall) > syshdr
423 printf(" \\\n\t%s.o", funcalias) > sysmk
428 type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
430 if (flag("COMPAT")) {
433 outdcl = syscompatdcl
437 } else if (flag("COMPAT4")) {
440 outdcl = syscompat4dcl
444 } else if (flag("COMPAT6")) {
447 outdcl = syscompat6dcl
451 } else if (flag("COMPAT7")) {
454 outdcl = syscompat7dcl
460 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
462 printf("struct %s {\n", argalias) > out
463 for (i = 1; i <= argc; i++)
464 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
465 "char %s_r_[PADR_(%s)];\n",
466 argname[i], argtype[i],
467 argtype[i], argname[i],
468 argname[i], argtype[i]) > out
471 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
472 printf("struct %s {\n\tregister_t dummy;\n};\n",
474 if (!flag("NOPROTO") && !flag("NODEF")) {
475 printf("%s\t%s%s(struct thread *, struct %s *);\n",
476 rettype, prefix, funcname, argalias) > outdcl
477 printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
478 prefix, funcname, auditev) > sysaue
481 printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0 },",
482 "0", "lkmressys", "AUE_NULL") > sysent
483 align_sysent_comment(8 + 2 + length("0") + 15 + \
484 length("lkmressys") + length("AUE_NULL") + 3)
486 printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s },",
487 wrap, argssize, funcname, auditev, flags) > sysent
488 align_sysent_comment(8 + 9 + length(argssize) + 1 + \
489 length(funcname) + length(auditev) + \
492 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
493 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
494 wrap, funcalias, syscall, descr, funcalias) > sysnames
495 if (flag("COMPAT")) {
496 printf("\t\t\t\t/* %d is old %s */\n",
497 syscall, funcalias) > syshdr
498 } else if (!flag("NODEF")) {
499 printf("#define\t%s%s%s\t%d\n", syscallprefix,
500 prefix, funcalias, syscall) > syshdr
501 printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
509 printf("%s\to%s();\n", rettype, funcname) > syscompatdcl
510 printf("\t{ compat(%s,%s), %s, NULL, 0, 0, %s },",
511 argssize, funcname, auditev, flags) > sysent
512 align_sysent_comment(8 + 9 + \
513 length(argssize) + 1 + length(funcname) + length(auditev) + length(flags) + 4)
514 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
515 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
516 funcalias, syscall, funcalias) > sysnames
517 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n",
518 syscallprefix, funcalias, syscall) > syshdr
519 printf(" \\\n\t%s.o", funcalias) > sysmk
524 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0 },") > sysent
525 align_sysent_comment(34)
526 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
527 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
528 $4, syscall, comment) > sysnames
529 printf("\t\t\t\t/* %d is obsolete %s */\n",
530 syscall, comment) > syshdr
535 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0 },\t\t\t/* %d = %s */\n",
536 syscall, comment) > sysent
537 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
538 syscall, syscall, comment) > sysnames
543 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
547 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
549 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0)
550 printf "#include \"opt_compat.h\"\n\n" > syssw
553 printf "\n#ifdef %s\n", compat > sysinc
554 printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
555 printf "#else\n" > sysinc
556 printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
557 printf "#endif\n" > sysinc
561 printf "\n#ifdef %s\n", compat4 > sysinc
562 printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
563 printf "#else\n" > sysinc
564 printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
565 printf "#endif\n" > sysinc
569 printf "\n#ifdef %s\n", compat6 > sysinc
570 printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
571 printf "#else\n" > sysinc
572 printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
573 printf "#endif\n" > sysinc
577 printf "\n#ifdef %s\n", compat7 > sysinc
578 printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
579 printf "#else\n" > sysinc
580 printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
581 printf "#endif\n" > sysinc
584 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
585 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
586 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
587 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
589 printf("\n#undef PAD_\n") > sysprotoend
590 printf("#undef PADL_\n") > sysprotoend
591 printf("#undef PADR_\n") > sysprotoend
592 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
595 printf("};\n") > sysent
596 printf("};\n") > sysnames
597 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
599 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
600 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
603 cat $sysinc $sysent >> $syssw
604 cat $sysarg $sysdcl \
605 $syscompat $syscompatdcl \
606 $syscompat4 $syscompat4dcl \
607 $syscompat6 $syscompat6dcl \
608 $syscompat7 $syscompat7dcl \
609 $sysaue $sysprotoend > $sysproto
610 cat $systracetmp >> $systrace