2 eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
3 if $running_under_some_shell;
6 # Copyright (c) 1992, 1993
7 # The Regents of the University of California. All rights reserved.
9 # Redistribution and use in source and binary forms, with or without
10 # modification, are permitted provided that the following conditions
12 # 1. Redistributions of source code must retain the above copyright
13 # notice, this list of conditions and the following disclaimer.
14 # 2. Redistributions in binary form must reproduce the above copyright
15 # notice, this list of conditions and the following disclaimer in the
16 # documentation and/or other materials provided with the distribution.
17 # 3. All advertising materials mentioning features or use of this software
18 # must display the following acknowledgement:
19 # This product includes software developed by the University of
20 # California, Berkeley and its contributors.
21 # 4. Neither the name of the University nor the names of its contributors
22 # may be used to endorse or promote products derived from this software
23 # without specific prior written permission.
25 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 # @(#)vnode_if.sh 8.1 (Berkeley) 6/10/93
38 # $FreeBSD: src/sys/kern/vnode_if.pl,v 1.21.2.1 2002/01/06 06:46:21 silby Exp $
39 # $DragonFly: src/sys/kern/Attic/vnode_if.pl,v 1.3 2003/08/26 21:09:02 rob Exp $
41 # Script to produce VFS front-end sugar.
43 # usage: vnode_if.pl srcfile
44 # (where srcfile is currently /sys/kern/vnode_if.src)
52 # Process the command line
54 while ($arg = shift @ARGV) {
57 } elsif ($arg eq '-h') {
59 } elsif ($arg eq '-ch' || $arg eq '-hc') {
62 } elsif ($arg =~ m/\.src$/) {
65 print "usage: vnode_if.pl [-c] [-h] srcfile\n";
69 if (!$cfile and !$hfile) {
70 exit(0); # nothing asked for..
73 # Names of the created files.
77 open(SRC, "<$SRC") || die "Unable to open input file";
80 open(HEADER, ">$HEADER") || die "Unable to create $HEADER";
81 # Print out header information for vnode_if.h.
82 print HEADER <<'END_OF_LEADING_COMMENT'
84 * This file is produced automatically.
85 * Do not modify anything in here by hand.
87 * Created from $FreeBSD: src/sys/kern/vnode_if.pl,v 1.21.2.1 2002/01/06 06:46:21 silby Exp $
90 extern struct vnodeop_desc vop_default_desc;
91 END_OF_LEADING_COMMENT
96 open(CFILE, ">$CFILE") || die "Unable to create $CFILE";
97 # Print out header information for vnode_if.c.
98 print CFILE <<'END_OF_LEADING_COMMENT'
100 * This file is produced automatically.
101 * Do not modify anything in here by hand.
103 * Created from $FreeBSD: src/sys/kern/vnode_if.pl,v 1.21.2.1 2002/01/06 06:46:21 silby Exp $
106 #include <sys/param.h>
107 #include <sys/vnode.h>
109 struct vnodeop_desc vop_default_desc = {
110 1, /* special case, vop_default => 1 */
121 END_OF_LEADING_COMMENT
125 line: while (<SRC>) {
126 chop; # strip record separator
132 if (!/^#%\s+([a-z]+)\s+([a-z]+)\s+(.)\s(.)\s(.)/) {
135 if (!defined($lockdata{"vop_$1"})) {
136 $lockdata{"vop_$1"} = {};
138 $lockdata{"vop_$1"}->{$2} = {
146 # Get the function name.
150 # Get the function arguments.
151 for ($numargs = 0; ; ++$numargs) {
155 die "Unable to read through the arguments for \"$name\"";
160 # For the header file
163 # The rest of this loop is for the C file
164 # Delete comments, if any.
165 $ln =~ s/\/\*.*\*\///g;
167 # Delete leading/trailing space.
168 $ln =~ s/^\s*(.*?)\s*$/$1/;
170 # Pick off direction.
171 if ($ln =~ s/^INOUT\s+//) {
173 } elsif ($ln =~ s/^IN\s+//) {
175 } elsif ($ln =~ s/^OUT\s+//) {
178 die "No IN/OUT direction for \"$ln\".";
180 if ($ln =~ s/^WILLRELE\s+//) {
188 &bail("Missing end-of-line ; in \"$ln\".");
191 # pick off variable name
192 if ($ln !~ s/([A-Za-z0-9_]+)$//) {
193 &bail("Missing var name \"a_foo\" in \"$ln\".");
197 # what is left must be type
198 # (put clean it up some)
200 # condense whitespace
202 $type =~ s/^\s*(.*?)\s*$/$1/;
204 $dirs{$numargs} = $dir;
205 $reles{$numargs} = $rele;
206 $types{$numargs} = $type;
207 $args{$numargs} = $arg;
211 # Print out the vop_F_args structure.
212 print HEADER "struct ${name}_args {\n\tstruct vnodeop_desc *a_desc;\n";
213 for ($c2 = 0; $c2 < $numargs; ++$c2) {
214 $a{$c2} =~ /^\s*(INOUT|OUT|IN)(\s+WILLRELE)?\s+(.*?)\s+(\**)(\S*\;)/;
215 print HEADER "\t$3 $4a_$5\n",
219 # Print out extern declaration.
220 print HEADER "extern struct vnodeop_desc ${name}_desc;\n";
222 # Print out prototype.
223 print HEADER "static __inline int ${uname} (\n";
224 for ($c2 = 0; $c2 < $numargs; ++$c2) {
225 $a{$c2} =~ /^\s*(INOUT|OUT|IN)(\s+WILLRELE)?\s+(.*?)\s+(\**\S*)\;/;
226 print HEADER "\t$3 $4" .
227 ($c2 < $numargs-1 ? "," : ");") . "\n";
230 # Print out function.
231 print HEADER "static __inline int ${uname}(";
232 for ($c2 = 0; $c2 < $numargs; ++$c2) {
233 $a{$c2} =~ /\**([^;\s]*)\;[^\s]*$/;
234 print HEADER "$1" . ($c2 < $numargs - 1 ? ', ' : ")\n");
236 for ($c2 = 0; $c2 < $numargs; ++$c2) {
237 $a{$c2} =~ /^\s*(INOUT|OUT|IN)(\s+WILLRELE)?\s+(.*?)\s+(\**\S*\;)/;
238 print HEADER "\t$3 $4\n";
240 print HEADER "{\n\tstruct ${name}_args a;\n";
241 print HEADER "\tint rc;\n";
242 print HEADER "\ta.a_desc = VDESC(${name});\n";
243 for ($c2 = 0; $c2 < $numargs; ++$c2) {
244 $a{$c2} =~ /(\**)([^;\s]*)([^\s]*)$/;
245 print HEADER "\ta.a_$2 = $2$3\n",
247 for ($c2 = 0; $c2 < $numargs; ++$c2) {
248 if (!exists($args{$c2})) {
249 die "Internal error";
251 if (exists($lockdata{$name}) &&
252 exists($lockdata{$name}->{$args{$c2}})) {
253 if ($ENV{'DEBUG_ALL_VFS_LOCKS'} =~ /yes/i) {
254 # Add assertions for locking
255 if ($lockdata{$name}->{$args{$c2}}->{Entry} eq "L") {
257 "\tASSERT_VOP_LOCKED($args{$c2}, \"$uname\");\n";
258 } elsif ($lockdata{$name}->{$args{$c2}}->{Entry} eq "U") {
260 "\tASSERT_VOP_UNLOCKED($args{$c2}, \"$uname\");\n";
267 $a{0} =~ /\s\**([^;\s]*);/;
268 print HEADER "\trc = VCALL($1, VOFFSET(${name}), &a);\n";
269 print HEADER "\treturn (rc);\n";
275 # Print out the vop_F_vp_offsets structure. This all depends
276 # on naming conventions and nothing else.
277 printf CFILE "static int %s_vp_offsets[] = {\n", $name;
278 # as a side effect, figure out the releflags
281 for ($i = 0; $i < $numargs; $i++) {
282 if ($types{$i} eq 'struct vnode *') {
283 printf CFILE "\tVOPARG_OFFSETOF(struct %s_args,a_%s),\n",
285 if ($reles{$i} eq 'WILLRELE') {
286 $releflags = $releflags . '|VDESC_VP' . $vpnum . '_WILLRELE';
293 $releflags =~ s/^\|//;
294 print CFILE "\tVDESC_NO_OFFSET\n";
297 # Print out the vnodeop_desc structure.
298 print CFILE "struct vnodeop_desc ${name}_desc = {\n";
300 print CFILE "\t0,\n";
302 printf CFILE "\t\"%s\",\n", $name;
305 for ($i = 0; $i < $numargs; $i++) {
306 if ($types{$i} eq 'struct vnode **' &&
307 ($reles{$i} eq 'WILLRELE')) {
308 $vppwillrele = '|VDESC_VPP_WILLRELE';
312 if ($releflags eq '') {
313 printf CFILE "\t0%s,\n", $vppwillrele;
316 printf CFILE "\t%s%s,\n", $releflags, $vppwillrele;
320 printf CFILE "\t%s_vp_offsets,\n", $name;
322 printf CFILE "\t%s,\n", &find_arg_with_type('struct vnode **');
324 printf CFILE "\t%s,\n", &find_arg_with_type('struct ucred *');
326 printf CFILE "\t%s,\n", &find_arg_with_type('struct proc *');
328 printf CFILE "\t%s,\n", &find_arg_with_type('struct componentname *');
329 # transport layer information
330 print CFILE "\tNULL,\n};\n\n";
335 close(HEADER) || die "Unable to close $HEADER";
338 close(CFILE) || die "Unable to close $CFILE";
344 sub find_arg_with_type {
348 for ($i=0; $i < $numargs; $i++) {
349 if ($types{$i} eq $type) {
350 return "VOPARG_OFFSETOF(struct ${name}_args,a_" . $args{$i} . ")";
354 return "VDESC_NO_OFFSET";