2 # @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93
7 # name of compat options:
9 compat4=COMPAT_FREEBSD4
13 sysproto="../sys/sysproto.h"
14 sysproto_h=_SYS_SYSPROTO_H_
15 syshdr="../sys/syscall.h"
16 sysmk="../sys/syscall.mk"
20 namesname="syscallnames"
21 systrace="systrace_args.c"
24 sysaue="sysent.aue.$$"
25 sysdcl="sysent.dcl.$$"
26 syscompat="sysent.compat.$$"
27 syscompatdcl="sysent.compatdcl.$$"
28 syscompat4="sysent.compat4.$$"
29 syscompat4dcl="sysent.compat4dcl.$$"
30 sysent="sysent.switch.$$"
31 sysinc="sysinc.switch.$$"
32 sysarg="sysarg.switch.$$"
33 sysprotoend="sysprotoend.$$"
35 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $sysent $sysinc $sysarg $sysprotoend" 0
37 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $sysent $sysinc $sysarg $sysprotoend
40 0) echo "usage: $0 input-file <config-file>" 1>&2
45 if [ -n "$2" -a -f "$2" ]; then
59 /^#/!s/\([{}()*,]\)/ \1 /g
65 sysproto = \"$sysproto\"
66 sysprotoend = \"$sysprotoend\"
67 sysproto_h = \"$sysproto_h\"
68 syscompat = \"$syscompat\"
69 syscompatdcl = \"$syscompatdcl\"
70 syscompat4 = \"$syscompat4\"
71 syscompat4dcl = \"$syscompat4dcl\"
76 sysnames = \"$sysnames\"
79 systrace = \"$systrace\"
81 compat4 = \"$compat4\"
82 syscallprefix = \"$syscallprefix\"
83 switchname = \"$switchname\"
84 namesname = \"$namesname\"
88 printf "/*\n * System call switch table.\n *\n" > syssw
89 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
90 printf " * $%s$\n", "FreeBSD" > syssw
92 printf "/*\n * System call prototypes.\n *\n" > sysarg
93 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
94 printf " * $%s$\n", "FreeBSD" > sysarg
96 printf "\n#ifdef %s\n\n", compat > syscompat
97 printf "\n#ifdef %s\n\n", compat4 > syscompat4
99 printf "/*\n * System call names.\n *\n" > sysnames
100 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
101 printf " * $%s$\n", "FreeBSD" > sysnames
103 printf "/*\n * System call numbers.\n *\n" > syshdr
104 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
105 printf " * $%s$\n", "FreeBSD" > syshdr
106 printf "# FreeBSD system call names.\n" > sysmk
107 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
108 printf "# $%s$\n", "FreeBSD" > sysmk
110 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
111 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
112 printf " * $%s$\n", "FreeBSD" > systrace
115 gsub("[$]FreeBSD: ", "", $0)
118 printf " * created from%s\n */\n\n", $0 > syssw
120 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
121 printf "struct sysent %s[] = {\n",switchname > sysent
123 printf " * created from%s\n */\n\n", $0 > sysarg
124 printf "#ifndef %s\n", sysproto_h > sysarg
125 printf "#define\t%s\n\n", sysproto_h > sysarg
126 printf "#include <sys/signal.h>\n" > sysarg
127 printf "#include <sys/acl.h>\n" > sysarg
128 printf "#include <sys/_semaphore.h>\n" > sysarg
129 printf "#include <sys/ucontext.h>\n\n" > sysarg
130 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
131 printf "struct proc;\n\n" > sysarg
132 printf "struct thread;\n\n" > sysarg
133 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
134 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
135 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
136 printf "#define\tPADL_(t)\t0\n" > sysarg
137 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
138 printf "#else\n" > sysarg
139 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
140 printf "#define\tPADR_(t)\t0\n" > sysarg
141 printf "#endif\n\n" > sysarg
143 printf " * created from%s\n */\n\n", $0 > sysnames
144 printf "const char *%s[] = {\n", namesname > sysnames
146 printf " * created from%s\n */\n\n", $0 > syshdr
148 printf "# created from%s\nMIASM = ", $0 > sysmk
150 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
151 printf "static void\nsystrace_args(int sysnum, void *params, u_int64_t *uarg, int *n_args)\n{\n" > systrace
152 printf "\tint64_t *iarg = (int64_t *) uarg;\n" > systrace
153 printf "\tswitch (sysnum) {\n" > systrace
157 NF == 0 || $1 ~ /^;/ {
160 $1 ~ /^#[ ]*include/ {
171 savesyscall = syscall
181 syscall = savesyscall
194 printf "%s: line %d: syscall number out of sync at %d\n",
200 function align_sysent_comment(column) {
201 printf("\t") > sysent
202 column = column + 8 - column % 8
203 while (column < 56) {
204 printf("\t") > sysent
208 function parserr(was, wanted) {
209 printf "%s: line %d: unexpected %s (expected %s)\n",
210 infile, NR, was, wanted
213 function parseline() {
214 f=4 # toss number, type, audit event
231 argssize = "AS(" $6 ")"
247 f++ #function return type
252 if (argalias == "") {
253 argalias = funcname "_args"
255 argalias = "o" argalias
257 argalias = "freebsd4_" argalias
267 parserr($f, "argument definition")
275 while (f < end && $(f+1) != ",") {
276 if (argtype[argc] != "" && oldf != "*")
277 argtype[argc] = argtype[argc]" ";
278 argtype[argc] = argtype[argc]$f;
282 if (argtype[argc] == "")
283 parserr($f, "argument definition")
285 f += 2; # skip name, and any comma
288 argssize = "AS(" argalias ")"
292 for (i = 5; i <= NF; i++)
293 comment = comment " " $i
297 # The AUE_ audit event identifier.
303 $3 == "STD" || $3 == "NODEF" || $3 == "NOARGS" || $3 == "NOPROTO" \
304 || $3 == "NOIMPL" || $3 == "NOSTD" {
306 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
308 printf("\t\tstruct %s *p = params;\n", argalias) > systrace
309 for (i = 1; i <= argc; i++) {
310 if (index(argtype[i], "*") > 0 || argtype[i] == "caddr_t")
311 printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
313 argname[i], argtype[i]) > systrace
314 else if (substr(argtype[i], 1, 1) == "u" || argtype[i] == "size_t")
315 printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
317 argname[i], argtype[i]) > systrace
319 printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
321 argname[i], argtype[i]) > systrace
324 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
325 if ((!nosys || funcname != "nosys") && \
326 (funcname != "lkmnosys") && (funcname != "lkmressys")) {
327 if (argc != 0 && $3 != "NOARGS" && $3 != "NOPROTO") {
328 printf("struct %s {\n", argalias) > sysarg
329 for (i = 1; i <= argc; i++)
330 printf("\tchar %s_l_[PADL_(%s)]; " \
331 "%s %s; char %s_r_[PADR_(%s)];\n",
332 argname[i], argtype[i],
333 argtype[i], argname[i],
334 argname[i], argtype[i]) > sysarg
335 printf("};\n") > sysarg
337 else if ($3 != "NOARGS" && $3 != "NOPROTO" && \
339 printf("struct %s {\n\tregister_t dummy;\n};\n",
342 if (($3 != "NOPROTO" && $3 != "NODEF" && \
343 (funcname != "nosys" || !nosys)) || \
344 (funcname == "lkmnosys" && !lkmnosys) || \
345 funcname == "lkmressys") {
346 printf("%s\t%s(struct thread *, struct %s *)",
347 rettype, funcname, argalias) > sysdcl
348 printf(";\n") > sysdcl
349 printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
350 funcalias, auditev) > sysaue
352 if (funcname == "nosys")
354 if (funcname == "lkmnosys")
356 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
357 column = 8 + 2 + length(argssize) + 15
358 if ($3 == "NOIMPL") {
359 printf("%s },", "nosys, AUE_NULL, NULL, 0, 0") > sysent
360 column = column + length("nosys") + 3
361 } else if ($3 == "NOSTD") {
362 printf("%s },", "lkmressys, AUE_NULL, NULL, 0, 0") > sysent
363 column = column + length("lkmressys") + 3
365 printf("%s, %s, NULL, 0, 0 },", funcname, auditev) > sysent
366 column = column + length(funcname) + length(auditev) + 3
368 align_sysent_comment(column)
369 printf("/* %d = %s */\n", syscall, funcalias) > sysent
370 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
371 funcalias, syscall, funcalias) > sysnames
373 printf("#define\t%s%s\t%d\n", syscallprefix,
374 funcalias, syscall) > syshdr
375 printf(" \\\n\t%s.o", funcalias) > sysmk
380 $3 == "COMPAT" || $3 == "COMPAT4" || $3 == "CPT_NOA" {
381 if ($3 == "COMPAT" || $3 == "CPT_NOA") {
384 outdcl = syscompatdcl
387 } else if ($3 == "COMPAT4") {
390 outdcl = syscompat4dcl
395 if (argc != 0 && $3 != "CPT_NOA") {
396 printf("struct %s {\n", argalias) > out
397 for (i = 1; i <= argc; i++)
398 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
399 "char %s_r_[PADR_(%s)];\n",
400 argname[i], argtype[i],
401 argtype[i], argname[i],
402 argname[i], argtype[i]) > out
405 else if($3 != "CPT_NOA")
406 printf("struct %s {\n\tregister_t dummy;\n};\n",
408 printf("%s\t%s%s(struct thread *, struct %s *);\n",
409 rettype, prefix, funcname, argalias) > outdcl
410 printf("\t{ %s(%s,%s), %s, NULL, 0, 0 },",
411 wrap, argssize, funcname, auditev) > sysent
412 align_sysent_comment(8 + 9 + \
413 length(argssize) + 1 + length(funcname) + length(auditev) + 4)
414 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
415 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
416 funcalias, syscall, funcalias) > sysnames
417 printf("\t\t\t\t/* %d is old %s */\n",
418 syscall, funcalias) > syshdr
425 printf("%s\to%s();\n", rettype, funcname) > syscompatdcl
426 printf("\t{ compat(%s,%s), %s, NULL, 0, 0 },",
427 argssize, funcname, auditev) > sysent
428 align_sysent_comment(8 + 9 + \
429 length(argssize) + 1 + length(funcname) + length(auditev) + 4)
430 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
431 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
432 funcalias, syscall, funcalias) > sysnames
433 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n",
434 syscallprefix, funcalias, syscall) > syshdr
435 printf(" \\\n\t%s.o", funcalias) > sysmk
440 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0 },") > sysent
441 align_sysent_comment(34)
442 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
443 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
444 $4, syscall, comment) > sysnames
445 printf("\t\t\t\t/* %d is obsolete %s */\n",
446 syscall, comment) > syshdr
451 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0 },\t\t\t/* %d = %s */\n",
452 syscall, comment) > sysent
453 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
454 syscall, syscall, comment) > sysnames
459 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
463 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
465 if (ncompat != 0 || ncompat4 != 0)
466 printf "#include \"opt_compat.h\"\n\n" > syssw
467 printf "#include \<bsm/audit_kevents.h\>\n" > syssw
470 printf "\n#ifdef %s\n", compat > sysinc
471 printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
472 printf "#else\n" > sysinc
473 printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
474 printf "#endif\n" > sysinc
478 printf "\n#ifdef %s\n", compat4 > sysinc
479 printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
480 printf "#else\n" > sysinc
481 printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
482 printf "#endif\n" > sysinc
485 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
487 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
489 printf("\n#undef PAD_\n") > sysprotoend
490 printf("#undef PADL_\n") > sysprotoend
491 printf("#undef PADR_\n") > sysprotoend
492 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
495 printf("};\n") > sysent
496 printf("};\n") > sysnames
497 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
499 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
502 cat $sysinc $sysent >> $syssw
503 cat $sysarg $sysdcl \
504 $syscompat $syscompatdcl \
505 $syscompat4 $syscompat4dcl \
506 $sysaue $sysprotoend > $sysproto