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 trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret" 0
45 touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $syscompat7 $syscompat7dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp $systraceret
48 0) echo "usage: $0 input-file <config-file>" 1>&2
53 if [ -n "$2" -a -f "$2" ]; then
67 /^#/!s/\([{}()*,]\)/ \1 /g
73 sysproto = \"$sysproto\"
74 sysprotoend = \"$sysprotoend\"
75 sysproto_h = \"$sysproto_h\"
76 syscompat = \"$syscompat\"
77 syscompatdcl = \"$syscompatdcl\"
78 syscompat4 = \"$syscompat4\"
79 syscompat4dcl = \"$syscompat4dcl\"
80 syscompat6 = \"$syscompat6\"
81 syscompat6dcl = \"$syscompat6dcl\"
82 syscompat7 = \"$syscompat7\"
83 syscompat7dcl = \"$syscompat7dcl\"
88 sysnames = \"$sysnames\"
91 systrace = \"$systrace\"
92 systracetmp = \"$systracetmp\"
93 systraceret = \"$systraceret\"
95 compat4 = \"$compat4\"
96 compat6 = \"$compat6\"
97 compat7 = \"$compat7\"
98 syscallprefix = \"$syscallprefix\"
99 switchname = \"$switchname\"
100 namesname = \"$namesname\"
104 printf "/*\n * System call switch table.\n *\n" > syssw
105 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
106 printf " * $%s$\n", "FreeBSD" > syssw
108 printf "/*\n * System call prototypes.\n *\n" > sysarg
109 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
110 printf " * $%s$\n", "FreeBSD" > sysarg
112 printf "\n#ifdef %s\n\n", compat > syscompat
113 printf "\n#ifdef %s\n\n", compat4 > syscompat4
114 printf "\n#ifdef %s\n\n", compat6 > syscompat6
115 printf "\n#ifdef %s\n\n", compat7 > syscompat7
117 printf "/*\n * System call names.\n *\n" > sysnames
118 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
119 printf " * $%s$\n", "FreeBSD" > sysnames
121 printf "/*\n * System call numbers.\n *\n" > syshdr
122 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
123 printf " * $%s$\n", "FreeBSD" > syshdr
124 printf "# FreeBSD system call names.\n" > sysmk
125 printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
126 printf "# $%s$\n", "FreeBSD" > sysmk
128 printf "/*\n * System call argument to DTrace register array converstion.\n *\n" > systrace
129 printf " * DO NOT EDIT-- this file is automatically generated.\n" > systrace
130 printf " * $%s$\n", "FreeBSD" > systrace
133 gsub("[$]FreeBSD: ", "", $0)
136 printf " * created from%s\n */\n\n", $0 > syssw
138 printf "\n/* The casts are bogus but will do for now. */\n" > sysent
139 printf "struct sysent %s[] = {\n",switchname > sysent
141 printf " * created from%s\n */\n\n", $0 > sysarg
142 printf "#ifndef %s\n", sysproto_h > sysarg
143 printf "#define\t%s\n\n", sysproto_h > sysarg
144 printf "#include <sys/signal.h>\n" > sysarg
145 printf "#include <sys/acl.h>\n" > sysarg
146 printf "#include <sys/cpuset.h>\n" > sysarg
147 printf "#include <sys/_semaphore.h>\n" > sysarg
148 printf "#include <sys/ucontext.h>\n\n" > sysarg
149 printf "#include <bsm/audit_kevents.h>\n\n" > sysarg
150 printf "struct proc;\n\n" > sysarg
151 printf "struct thread;\n\n" > sysarg
152 printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) ? \\\n" > sysarg
153 printf "\t\t0 : sizeof(register_t) - sizeof(t))\n\n" > sysarg
154 printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
155 printf "#define\tPADL_(t)\t0\n" > sysarg
156 printf "#define\tPADR_(t)\tPAD_(t)\n" > sysarg
157 printf "#else\n" > sysarg
158 printf "#define\tPADL_(t)\tPAD_(t)\n" > sysarg
159 printf "#define\tPADR_(t)\t0\n" > sysarg
160 printf "#endif\n\n" > sysarg
162 printf " * created from%s\n */\n\n", $0 > sysnames
163 printf "const char *%s[] = {\n", namesname > sysnames
165 printf " * created from%s\n */\n\n", $0 > syshdr
167 printf "# created from%s\nMIASM = ", $0 > sysmk
169 printf " * This file is part of the DTrace syscall provider.\n */\n\n" > systrace
170 printf "static void\nsystrace_args(int sysnum, void *params, u_int64_t *uarg, int *n_args)\n{\n" > systrace
171 printf "\tint64_t *iarg = (int64_t *) uarg;\n" > systrace
172 printf "\tswitch (sysnum) {\n" > systrace
174 printf "static void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
175 printf "\tswitch (sysnum) {\n" > systracetmp
177 printf "static void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceret
178 printf "\tswitch (sysnum) {\n" > systraceret
182 NF == 0 || $1 ~ /^;/ {
185 $1 ~ /^#[ ]*include/ {
201 savesyscall = syscall
216 syscall = savesyscall
234 printf "%s: line %d: syscall number out of sync at %d\n",
240 # Returns true if the type "name" is the first flag in the type field
241 function type(name, flags, n) {
242 n = split($3, flags, /\|/)
243 return (n > 0 && flags[1] == name)
245 # Returns true if the flag "name" is set in the type field
246 function flag(name, flags, i, n) {
247 n = split($3, flags, /\|/)
248 for (i = 1; i <= n; i++)
249 if (flags[i] == name)
253 function align_sysent_comment(column) {
254 printf("\t") > sysent
255 column = column + 8 - column % 8
256 while (column < 56) {
257 printf("\t") > sysent
261 function parserr(was, wanted) {
262 printf "%s: line %d: unexpected %s (expected %s)\n",
263 infile, NR, was, wanted
266 function parseline() {
267 f=4 # toss number, type, audit event
284 argssize = "AS(" $6 ")"
306 if (argalias == "") {
307 argalias = funcname "_args"
309 argalias = "o" argalias
311 argalias = "freebsd4_" argalias
313 argalias = "freebsd6_" argalias
315 argalias = "freebsd7_" argalias
325 parserr($f, "argument definition")
333 while (f < end && $(f+1) != ",") {
334 if (argtype[argc] != "" && oldf != "*")
335 argtype[argc] = argtype[argc]" ";
336 argtype[argc] = argtype[argc]$f;
340 if (argtype[argc] == "")
341 parserr($f, "argument definition")
343 f += 2; # skip name, and any comma
346 argssize = "AS(" argalias ")"
350 for (i = 5; i <= NF; i++)
351 comment = comment " " $i
355 # The AUE_ audit event identifier.
362 # The currently-empty flags field.
368 type("STD") || type("NODEF") || type("NOARGS") || type("NOPROTO") \
371 printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
372 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
373 printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systraceret
375 printf("\t\tswitch(ndx) {\n") > systracetmp
376 printf("\t\tstruct %s *p = params;\n", argalias) > systrace
377 for (i = 1; i <= argc; i++) {
378 printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, argtype[i]) > systracetmp
379 if (index(argtype[i], "*") > 0 || argtype[i] == "caddr_t")
380 printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
382 argname[i], argtype[i]) > systrace
383 else if (substr(argtype[i], 1, 1) == "u" || argtype[i] == "size_t")
384 printf("\t\tuarg[%d] = p->%s; /* %s */\n", \
386 argname[i], argtype[i]) > systrace
388 printf("\t\tiarg[%d] = p->%s; /* %s */\n", \
390 argname[i], argtype[i]) > systrace
392 printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
394 printf("\t\tif (ndx == 0 || ndx == 1)\n") > systraceret
395 printf("\t\t\tp = \"%s\";\n", syscallret) > systraceret
396 printf("\t\tbreak;\n") > systraceret
398 printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
399 printf("\t\tbreak;\n") > systracetmp
400 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
402 printf("struct %s {\n", argalias) > sysarg
403 for (i = 1; i <= argc; i++)
404 printf("\tchar %s_l_[PADL_(%s)]; " \
405 "%s %s; char %s_r_[PADR_(%s)];\n",
406 argname[i], argtype[i],
407 argtype[i], argname[i],
408 argname[i], argtype[i]) > sysarg
409 printf("};\n") > sysarg
411 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
412 printf("struct %s {\n\tregister_t dummy;\n};\n",
414 if (!flag("NOPROTO") && !flag("NODEF")) {
415 printf("%s\t%s(struct thread *, struct %s *)",
416 rettype, funcname, argalias) > sysdcl
417 printf(";\n") > sysdcl
418 printf("#define\t%sAUE_%s\t%s\n", syscallprefix,
419 funcalias, auditev) > sysaue
421 printf("\t{ %s, (sy_call_t *)", argssize) > sysent
422 column = 8 + 2 + length(argssize) + 15
424 printf("%s },", "lkmressys, AUE_NULL, NULL, 0, 0, 0") > sysent
425 column = column + length("lkmressys") + length("AUE_NULL") + 3
427 printf("%s, %s, NULL, 0, 0, %s },", funcname, auditev, flags) > sysent
428 column = column + length(funcname) + length(auditev) + length(flags) + 3
430 align_sysent_comment(column)
431 printf("/* %d = %s */\n", syscall, funcalias) > sysent
432 printf("\t\"%s\",\t\t\t/* %d = %s */\n",
433 funcalias, syscall, funcalias) > sysnames
434 if (!flag("NODEF")) {
435 printf("#define\t%s%s\t%d\n", syscallprefix,
436 funcalias, syscall) > syshdr
437 printf(" \\\n\t%s.o", funcalias) > sysmk
442 type("COMPAT") || type("COMPAT4") || type("COMPAT6") || \
444 if (flag("COMPAT")) {
447 outdcl = syscompatdcl
451 } else if (flag("COMPAT4")) {
454 outdcl = syscompat4dcl
458 } else if (flag("COMPAT6")) {
461 outdcl = syscompat6dcl
465 } else if (flag("COMPAT7")) {
468 outdcl = syscompat7dcl
474 if (argc != 0 && !flag("NOARGS") && !flag("NOPROTO") && \
476 printf("struct %s {\n", argalias) > out
477 for (i = 1; i <= argc; i++)
478 printf("\tchar %s_l_[PADL_(%s)]; %s %s; " \
479 "char %s_r_[PADR_(%s)];\n",
480 argname[i], argtype[i],
481 argtype[i], argname[i],
482 argname[i], argtype[i]) > out
485 else if (!flag("NOARGS") && !flag("NOPROTO") && !flag("NODEF"))
486 printf("struct %s {\n\tregister_t dummy;\n};\n",
488 if (!flag("NOPROTO") && !flag("NODEF")) {
489 printf("%s\t%s%s(struct thread *, struct %s *);\n",
490 rettype, prefix, funcname, argalias) > outdcl
491 printf("#define\t%sAUE_%s%s\t%s\n", syscallprefix,
492 prefix, funcname, auditev) > sysaue
495 printf("\t{ %s, (sy_call_t *)%s, %s, NULL, 0, 0, 0 },",
496 "0", "lkmressys", "AUE_NULL") > sysent
497 align_sysent_comment(8 + 2 + length("0") + 15 + \
498 length("lkmressys") + length("AUE_NULL") + 3)
500 printf("\t{ %s(%s,%s), %s, NULL, 0, 0, %s },",
501 wrap, argssize, funcname, auditev, flags) > sysent
502 align_sysent_comment(8 + 9 + length(argssize) + 1 + \
503 length(funcname) + length(auditev) + \
506 printf("/* %d = %s %s */\n", syscall, descr, funcalias) > sysent
507 printf("\t\"%s.%s\",\t\t/* %d = %s %s */\n",
508 wrap, funcalias, syscall, descr, funcalias) > sysnames
509 if (flag("COMPAT")) {
510 printf("\t\t\t\t/* %d is old %s */\n",
511 syscall, funcalias) > syshdr
512 } else if (!flag("NODEF")) {
513 printf("#define\t%s%s%s\t%d\n", syscallprefix,
514 prefix, funcalias, syscall) > syshdr
515 printf(" \\\n\t%s%s.o", prefix, funcalias) > sysmk
523 printf("%s\to%s();\n", rettype, funcname) > syscompatdcl
524 printf("\t{ compat(%s,%s), %s, NULL, 0, 0, %s },",
525 argssize, funcname, auditev, flags) > sysent
526 align_sysent_comment(8 + 9 + \
527 length(argssize) + 1 + length(funcname) + length(auditev) + length(flags) + 4)
528 printf("/* %d = old %s */\n", syscall, funcalias) > sysent
529 printf("\t\"old.%s\",\t\t/* %d = old %s */\n",
530 funcalias, syscall, funcalias) > sysnames
531 printf("#define\t%s%s\t%d\t/* compatibility; still used by libc */\n",
532 syscallprefix, funcalias, syscall) > syshdr
533 printf(" \\\n\t%s.o", funcalias) > sysmk
538 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0 },") > sysent
539 align_sysent_comment(34)
540 printf("/* %d = obsolete %s */\n", syscall, comment) > sysent
541 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n",
542 $4, syscall, comment) > sysnames
543 printf("\t\t\t\t/* %d is obsolete %s */\n",
544 syscall, comment) > syshdr
549 printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0 },\t\t\t/* %d = %s */\n",
550 syscall, comment) > sysent
551 printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
552 syscall, syscall, comment) > sysnames
557 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $3
561 printf "\n#define AS(name) (sizeof(struct name) / sizeof(register_t))\n" > sysinc
563 if (ncompat != 0 || ncompat4 != 0 || ncompat6 != 0 || ncompat7 != 0)
564 printf "#include \"opt_compat.h\"\n\n" > syssw
567 printf "\n#ifdef %s\n", compat > sysinc
568 printf "#define compat(n, name) n, (sy_call_t *)__CONCAT(o,name)\n" > sysinc
569 printf "#else\n" > sysinc
570 printf "#define compat(n, name) 0, (sy_call_t *)nosys\n" > sysinc
571 printf "#endif\n" > sysinc
575 printf "\n#ifdef %s\n", compat4 > sysinc
576 printf "#define compat4(n, name) n, (sy_call_t *)__CONCAT(freebsd4_,name)\n" > sysinc
577 printf "#else\n" > sysinc
578 printf "#define compat4(n, name) 0, (sy_call_t *)nosys\n" > sysinc
579 printf "#endif\n" > sysinc
583 printf "\n#ifdef %s\n", compat6 > sysinc
584 printf "#define compat6(n, name) n, (sy_call_t *)__CONCAT(freebsd6_,name)\n" > sysinc
585 printf "#else\n" > sysinc
586 printf "#define compat6(n, name) 0, (sy_call_t *)nosys\n" > sysinc
587 printf "#endif\n" > sysinc
591 printf "\n#ifdef %s\n", compat7 > sysinc
592 printf "#define compat7(n, name) n, (sy_call_t *)__CONCAT(freebsd7_,name)\n" > sysinc
593 printf "#else\n" > sysinc
594 printf "#define compat7(n, name) 0, (sy_call_t *)nosys\n" > sysinc
595 printf "#endif\n" > sysinc
598 printf("\n#endif /* %s */\n\n", compat) > syscompatdcl
599 printf("\n#endif /* %s */\n\n", compat4) > syscompat4dcl
600 printf("\n#endif /* %s */\n\n", compat6) > syscompat6dcl
601 printf("\n#endif /* %s */\n\n", compat7) > syscompat7dcl
603 printf("\n#undef PAD_\n") > sysprotoend
604 printf("#undef PADL_\n") > sysprotoend
605 printf("#undef PADR_\n") > sysprotoend
606 printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
609 printf("};\n") > sysent
610 printf("};\n") > sysnames
611 printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
613 printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
614 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
615 printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceret
618 cat $sysinc $sysent >> $syssw
619 cat $sysarg $sysdcl \
620 $syscompat $syscompatdcl \
621 $syscompat4 $syscompat4dcl \
622 $syscompat6 $syscompat6dcl \
623 $syscompat7 $syscompat7dcl \
624 $sysaue $sysprotoend > $sysproto
625 cat $systracetmp >> $systrace
626 cat $systraceret >> $systrace