2002-03-01 01:20:23 +00:00
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#!/usr/bin/awk -f
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1999-09-26 18:31:51 +00:00
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2005-01-07 02:29:27 +00:00
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#-
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1994-05-24 10:09:53 +00:00
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# Copyright (c) 1992, 1993
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# The Regents of the University of California. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 4. Neither the name of the University nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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2005-01-07 02:29:27 +00:00
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1994-05-24 10:09:53 +00:00
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#
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# @(#)vnode_if.sh 8.1 (Berkeley) 6/10/93
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1999-08-28 01:08:13 +00:00
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# $FreeBSD$
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1994-05-24 10:09:53 +00:00
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#
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# Script to produce VFS front-end sugar.
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#
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2006-05-26 07:13:26 +00:00
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# usage: vnode_if.awk <srcfile> [-c | -h | -p | -q]
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2002-03-01 01:20:23 +00:00
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# (where <srcfile> is currently /sys/kern/vnode_if.src)
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2006-05-26 07:13:26 +00:00
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# The source file must have a .src extension
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1994-05-24 10:09:53 +00:00
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#
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2002-03-01 01:20:23 +00:00
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function usage()
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{
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2004-12-01 23:16:38 +00:00
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print "usage: vnode_if.awk <srcfile> [-c|-h|-p|-q]";
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2002-03-01 01:20:23 +00:00
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exit 1;
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1999-09-26 18:31:51 +00:00
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}
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1994-05-24 10:09:53 +00:00
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2002-03-01 01:20:23 +00:00
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function die(msg, what)
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{
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2006-05-30 21:13:28 +00:00
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printf srcfile "(" fnr "): " > "/dev/stderr";
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2002-03-01 01:20:23 +00:00
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printf msg "\n", what > "/dev/stderr";
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exit 1;
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1999-12-12 16:43:05 +00:00
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}
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1994-05-24 10:09:53 +00:00
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2002-03-01 01:20:23 +00:00
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function t_spc(type)
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{
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# Append a space if the type is not a pointer
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return (type ~ /\*$/) ? type : type " ";
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1999-12-12 16:43:05 +00:00
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}
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1994-05-24 10:09:53 +00:00
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2002-03-01 01:20:23 +00:00
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# These are just for convenience ...
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function printc(s) {print s > cfile;}
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function printh(s) {print s > hfile;}
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2004-12-01 23:16:38 +00:00
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function printp(s) {print s > pfile;}
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function printq(s) {print s > qfile;}
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2002-03-01 01:20:23 +00:00
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2005-01-13 07:53:01 +00:00
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function add_debug_code(name, arg, pos, ind)
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2002-03-01 01:20:23 +00:00
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{
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2003-06-20 12:15:37 +00:00
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if (arg == "vpp")
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2005-01-13 07:53:01 +00:00
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star = "*";
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else
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star = "";
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2003-06-22 21:20:06 +00:00
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if (lockdata[name, arg, pos] && (lockdata[name, arg, pos] != "-")) {
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2005-01-13 07:53:01 +00:00
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printc(ind"ASSERT_VI_UNLOCKED("star"a->a_"arg", \""uname"\");");
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2002-03-01 01:20:23 +00:00
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# Add assertions for locking
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2002-07-30 08:52:00 +00:00
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if (lockdata[name, arg, pos] == "L")
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2005-01-13 07:53:01 +00:00
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printc(ind"ASSERT_VOP_LOCKED(" star "a->a_"arg", \""uname"\");");
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2002-07-30 08:52:00 +00:00
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else if (lockdata[name, arg, pos] == "U")
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2005-01-13 07:53:01 +00:00
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printc(ind"ASSERT_VOP_UNLOCKED(" star "a->a_"arg", \""uname"\");");
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2005-04-11 15:15:03 +00:00
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else if (lockdata[name, arg, pos] == "E")
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printc(ind"ASSERT_VOP_ELOCKED(" star "a->a_"arg", \""uname"\");");
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2002-03-01 01:20:23 +00:00
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else if (0) {
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# XXX More checks!
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}
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1994-05-24 10:09:53 +00:00
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}
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2002-03-01 01:20:23 +00:00
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}
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1999-09-26 18:31:51 +00:00
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2005-06-09 20:20:31 +00:00
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function add_pre(name)
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2002-07-06 03:46:36 +00:00
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{
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2002-07-07 06:39:36 +00:00
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if (lockdata[name, "pre"]) {
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2005-01-13 07:53:01 +00:00
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printc("\t"lockdata[name, "pre"]"(a);");
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2002-07-06 03:46:36 +00:00
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}
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}
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2005-06-09 20:20:31 +00:00
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function add_post(name)
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2002-07-06 03:46:36 +00:00
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{
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2002-07-07 06:39:36 +00:00
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if (lockdata[name, "post"]) {
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2005-01-13 07:53:01 +00:00
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printc("\t"lockdata[name, "post"]"(a, rc);");
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2002-07-06 03:46:36 +00:00
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}
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}
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2002-03-01 01:20:23 +00:00
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function find_arg_with_type (type)
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{
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for (jj = 0; jj < numargs; jj++) {
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if (types[jj] == type) {
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return "VOPARG_OFFSETOF(struct " \
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name "_args,a_" args[jj] ")";
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}
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1994-05-24 10:09:53 +00:00
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}
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2002-03-01 01:20:23 +00:00
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return "VDESC_NO_OFFSET";
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}
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1994-05-24 10:09:53 +00:00
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2002-03-01 01:20:23 +00:00
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BEGIN{
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1999-09-26 18:31:51 +00:00
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2002-03-01 01:20:23 +00:00
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# Process the command line
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for (i = 1; i < ARGC; i++) {
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arg = ARGV[i];
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2004-12-01 23:16:38 +00:00
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if (arg !~ /^-[chpq]+$/ && arg !~ /\.src$/)
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2002-03-01 01:20:23 +00:00
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usage();
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if (arg ~ /^-.*c/)
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cfile = "vnode_if.c";
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if (arg ~ /^-.*h/)
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hfile = "vnode_if.h";
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2004-12-01 23:16:38 +00:00
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if (arg ~ /^-.*p/)
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pfile = "vnode_if_newproto.h";
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if (arg ~ /^-.*q/)
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qfile = "vnode_if_typedef.h";
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2002-03-01 01:20:23 +00:00
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if (arg ~ /\.src$/)
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srcfile = arg;
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}
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ARGC = 1;
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2004-12-01 23:16:38 +00:00
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if (!cfile && !hfile && !pfile && !qfile)
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2002-03-01 01:20:23 +00:00
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exit 0;
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if (!srcfile)
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usage();
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common_head = \
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"/*\n" \
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" * This file is produced automatically.\n" \
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" * Do not modify anything in here by hand.\n" \
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" *\n" \
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" * Created from $FreeBSD$\n" \
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" */\n" \
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"\n";
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2004-12-01 23:16:38 +00:00
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if (pfile) {
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printp(common_head)
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printp("struct vop_vector {")
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printp("\tstruct vop_vector\t*vop_default;")
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printp("\tvop_bypass_t\t*vop_bypass;")
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}
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if (qfile) {
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printq(common_head)
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}
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if (hfile) {
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2002-03-01 01:20:23 +00:00
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printh(common_head "extern struct vnodeop_desc vop_default_desc;");
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2004-12-01 23:16:38 +00:00
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printh("#include \"vnode_if_typedef.h\"")
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printh("#include \"vnode_if_newproto.h\"")
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}
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2002-03-01 01:20:23 +00:00
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if (cfile) {
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printc(common_head \
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"#include <sys/param.h>\n" \
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2005-06-09 20:20:31 +00:00
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"#include <sys/event.h>\n" \
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"#include <sys/mount.h>\n" \
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2002-05-04 02:35:13 +00:00
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"#include <sys/systm.h>\n" \
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2002-03-01 01:20:23 +00:00
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"#include <sys/vnode.h>\n" \
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"\n" \
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"struct vnodeop_desc vop_default_desc = {\n" \
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" \"default\",\n" \
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" 0,\n" \
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2005-12-14 00:49:52 +00:00
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" (vop_bypass_t *)vop_panic,\n" \
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2002-03-01 01:20:23 +00:00
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" NULL,\n" \
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" VDESC_NO_OFFSET,\n" \
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" VDESC_NO_OFFSET,\n" \
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" VDESC_NO_OFFSET,\n" \
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" VDESC_NO_OFFSET,\n" \
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"};\n");
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}
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while ((getline < srcfile) > 0) {
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2006-05-30 21:13:28 +00:00
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fnr++;
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2002-03-01 01:20:23 +00:00
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if (NF == 0)
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continue;
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2006-05-30 20:49:54 +00:00
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if ($1 ~ /^%%/) {
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2006-05-30 21:13:28 +00:00
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if (NF != 6 ||
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$2 !~ /^[a-z]+$/ || $3 !~ /^[a-z]+$/ ||
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$4 !~ /^.$/ || $5 !~ /^.$/ || $6 !~ /^.$/) {
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die("Invalid %s construction", "%%");
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2002-03-01 01:20:23 +00:00
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continue;
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2006-05-30 21:13:28 +00:00
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}
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2002-03-01 01:20:23 +00:00
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lockdata["vop_" $2, $3, "Entry"] = $4;
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lockdata["vop_" $2, $3, "OK"] = $5;
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lockdata["vop_" $2, $3, "Error"] = $6;
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continue;
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1999-09-26 18:31:51 +00:00
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}
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2002-03-01 01:20:23 +00:00
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2006-05-30 20:49:54 +00:00
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if ($1 ~ /^%!/) {
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2006-05-30 21:13:28 +00:00
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if (NF != 4 ||
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($3 != "pre" && $3 != "post")) {
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die("Invalid %s construction", "%!");
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2002-07-06 03:46:36 +00:00
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continue;
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2006-05-30 21:13:28 +00:00
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}
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2002-07-06 03:46:36 +00:00
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lockdata["vop_" $2, $3] = $4;
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continue;
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}
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2006-05-30 21:13:28 +00:00
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if ($1 ~ /^#/)
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2002-07-06 03:46:36 +00:00
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continue;
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2002-03-01 01:20:23 +00:00
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# Get the function name.
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name = $1;
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uname = toupper(name);
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2002-09-23 05:50:07 +00:00
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# Start constructing a ktrpoint string
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ctrstr = "\"" uname;
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2002-03-01 01:20:23 +00:00
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# Get the function arguments.
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for (numargs = 0; ; ++numargs) {
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if ((getline < srcfile) <= 0) {
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die("Unable to read through the arguments for \"%s\"",
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name);
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1999-09-26 18:31:51 +00:00
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}
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2006-05-30 21:13:28 +00:00
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fnr++;
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2002-03-01 01:20:23 +00:00
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if ($1 ~ /^\};/)
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break;
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# Delete comments, if any.
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gsub (/\/\*.*\*\//, "");
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# Condense whitespace and delete leading/trailing space.
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gsub(/[[:space:]]+/, " ");
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sub(/^ /, "");
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sub(/ $/, "");
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# Pick off direction.
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if ($1 != "INOUT" && $1 != "IN" && $1 != "OUT")
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die("No IN/OUT direction for \"%s\".", $0);
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dirs[numargs] = $1;
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sub(/^[A-Z]* /, "");
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if ((reles[numargs] = $1) == "WILLRELE")
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sub(/^[A-Z]* /, "");
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else
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reles[numargs] = "WONTRELE";
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# kill trailing ;
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if (sub(/;$/, "") < 1)
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die("Missing end-of-line ; in \"%s\".", $0);
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# pick off variable name
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if ((argp = match($0, /[A-Za-z0-9_]+$/)) < 1)
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die("Missing var name \"a_foo\" in \"%s\".", $0);
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args[numargs] = substr($0, argp);
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$0 = substr($0, 1, argp - 1);
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# what is left must be type
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# remove trailing space (if any)
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sub(/ $/, "");
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types[numargs] = $0;
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2002-09-23 05:50:07 +00:00
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# We can do a maximum of 6 arguments to CTR*
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if (numargs <= 6) {
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if (numargs == 0)
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ctrstr = ctrstr "(" args[numargs];
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else
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ctrstr = ctrstr ", " args[numargs];
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if (types[numargs] ~ /\*/)
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ctrstr = ctrstr " 0x%lX";
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else
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ctrstr = ctrstr " %ld";
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}
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1999-09-26 18:31:51 +00:00
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}
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2002-09-23 05:50:07 +00:00
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if (numargs > 6)
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ctrargs = 6;
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else
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ctrargs = numargs;
|
2005-01-13 07:53:01 +00:00
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ctrstr = "\tCTR" ctrargs "(KTR_VOP,\n\t " ctrstr ")\",\n\t ";
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ctrstr = ctrstr "a->a_" args[0];
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for (i = 1; i < ctrargs; ++i)
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ctrstr = ctrstr ", a->a_" args[i];
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2002-09-23 05:50:07 +00:00
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ctrstr = ctrstr ");";
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1999-12-12 16:43:05 +00:00
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2004-12-01 23:16:38 +00:00
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if (pfile) {
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printp("\t"name"_t\t*"name";")
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}
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if (qfile) {
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printq("struct "name"_args;")
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printq("typedef int "name"_t(struct "name"_args *);\n")
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}
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2002-03-01 01:20:23 +00:00
|
|
|
if (hfile) {
|
|
|
|
# Print out the vop_F_args structure.
|
2004-12-13 07:23:34 +00:00
|
|
|
printh("struct "name"_args {\n\tstruct vop_generic_args a_gen;");
|
2002-03-01 01:20:23 +00:00
|
|
|
for (i = 0; i < numargs; ++i)
|
|
|
|
printh("\t" t_spc(types[i]) "a_" args[i] ";");
|
|
|
|
printh("};");
|
2005-01-13 07:53:01 +00:00
|
|
|
printh("");
|
2002-03-01 01:20:23 +00:00
|
|
|
|
|
|
|
# Print out extern declaration.
|
|
|
|
printh("extern struct vnodeop_desc " name "_desc;");
|
2005-01-13 07:53:01 +00:00
|
|
|
printh("");
|
2002-03-01 01:20:23 +00:00
|
|
|
|
2005-01-13 07:53:01 +00:00
|
|
|
# Print out function prototypes.
|
|
|
|
printh("int " uname "_AP(struct " name "_args *);");
|
2005-02-08 12:54:32 +00:00
|
|
|
printh("int " uname "_APV(struct vop_vector *vop, struct " name "_args *);");
|
2005-01-13 07:53:01 +00:00
|
|
|
printh("");
|
2002-03-01 01:20:23 +00:00
|
|
|
printh("static __inline int " uname "(");
|
|
|
|
for (i = 0; i < numargs; ++i) {
|
|
|
|
printh("\t" t_spc(types[i]) args[i] \
|
|
|
|
(i < numargs - 1 ? "," : ")"));
|
|
|
|
}
|
2005-01-13 07:53:01 +00:00
|
|
|
printh("{");
|
|
|
|
printh("\tstruct " name "_args a;");
|
|
|
|
printh("");
|
2005-01-13 08:05:20 +00:00
|
|
|
printh("\ta.a_gen.a_desc = &" name "_desc;");
|
2002-03-01 01:20:23 +00:00
|
|
|
for (i = 0; i < numargs; ++i)
|
|
|
|
printh("\ta.a_" args[i] " = " args[i] ";");
|
2005-02-08 12:54:32 +00:00
|
|
|
printh("\treturn (" uname "_APV("args[0]"->v_op, &a));");
|
2002-07-30 08:52:00 +00:00
|
|
|
printh("}");
|
2005-01-13 07:53:01 +00:00
|
|
|
|
|
|
|
printh("");
|
1999-12-12 16:43:05 +00:00
|
|
|
}
|
1999-09-26 18:31:51 +00:00
|
|
|
|
2002-03-01 01:20:23 +00:00
|
|
|
if (cfile) {
|
|
|
|
# Print out the vop_F_vp_offsets structure. This all depends
|
|
|
|
# on naming conventions and nothing else.
|
|
|
|
printc("static int " name "_vp_offsets[] = {");
|
|
|
|
# as a side effect, figure out the releflags
|
|
|
|
releflags = "";
|
|
|
|
vpnum = 0;
|
|
|
|
for (i = 0; i < numargs; i++) {
|
|
|
|
if (types[i] == "struct vnode *") {
|
|
|
|
printc("\tVOPARG_OFFSETOF(struct " name \
|
|
|
|
"_args,a_" args[i] "),");
|
|
|
|
if (reles[i] == "WILLRELE") {
|
|
|
|
releflags = releflags \
|
|
|
|
"|VDESC_VP" vpnum "_WILLRELE";
|
|
|
|
}
|
|
|
|
vpnum++;
|
|
|
|
}
|
|
|
|
}
|
1999-09-26 18:31:51 +00:00
|
|
|
|
2002-03-01 01:20:23 +00:00
|
|
|
sub(/^\|/, "", releflags);
|
|
|
|
printc("\tVDESC_NO_OFFSET");
|
|
|
|
printc("};");
|
|
|
|
|
2005-01-13 07:53:01 +00:00
|
|
|
# Print out function.
|
|
|
|
printc("\nint\n" uname "_AP(struct " name "_args *a)");
|
|
|
|
printc("{");
|
2005-02-08 12:54:32 +00:00
|
|
|
printc("");
|
|
|
|
printc("\treturn(" uname "_APV(a->a_" args[0] "->v_op, a));");
|
|
|
|
printc("}");
|
|
|
|
printc("\nint\n" uname "_APV(struct vop_vector *vop, struct " name "_args *a)");
|
|
|
|
printc("{");
|
2005-01-13 07:53:01 +00:00
|
|
|
printc("\tint rc;");
|
|
|
|
printc("");
|
2005-02-08 12:54:32 +00:00
|
|
|
printc("\tVNASSERT(a->a_gen.a_desc == &" name "_desc, a->a_" args[0]",");
|
|
|
|
printc("\t (\"Wrong a_desc in " name "(%p, %p)\", a->a_" args[0]", a));");
|
2005-01-13 07:53:01 +00:00
|
|
|
printc("\twhile(vop != NULL && \\");
|
|
|
|
printc("\t vop->"name" == NULL && vop->vop_bypass == NULL)")
|
|
|
|
printc("\t\tvop = vop->vop_default;")
|
2005-02-08 12:54:32 +00:00
|
|
|
printc("\tVNASSERT(vop != NULL, a->a_" args[0]", (\"No "name"(%p, %p)\", a->a_" args[0]", a));")
|
2005-01-13 07:53:01 +00:00
|
|
|
for (i = 0; i < numargs; ++i)
|
|
|
|
add_debug_code(name, args[i], "Entry", "\t");
|
2005-06-09 20:20:31 +00:00
|
|
|
add_pre(name);
|
2005-01-13 07:53:01 +00:00
|
|
|
printc("\tif (vop->"name" != NULL)")
|
|
|
|
printc("\t\trc = vop->"name"(a);")
|
|
|
|
printc("\telse")
|
|
|
|
printc("\t\trc = vop->vop_bypass(&a->a_gen);")
|
|
|
|
printc(ctrstr);
|
|
|
|
printc("\tif (rc == 0) {");
|
|
|
|
for (i = 0; i < numargs; ++i)
|
|
|
|
add_debug_code(name, args[i], "OK", "\t\t");
|
|
|
|
printc("\t} else {");
|
|
|
|
for (i = 0; i < numargs; ++i)
|
|
|
|
add_debug_code(name, args[i], "Error", "\t\t");
|
|
|
|
printc("\t}");
|
2005-06-09 20:20:31 +00:00
|
|
|
add_post(name);
|
2005-01-13 07:53:01 +00:00
|
|
|
printc("\treturn (rc);");
|
|
|
|
printc("}\n");
|
|
|
|
|
2002-03-01 01:20:23 +00:00
|
|
|
# Print out the vnodeop_desc structure.
|
|
|
|
printc("struct vnodeop_desc " name "_desc = {");
|
|
|
|
# printable name
|
|
|
|
printc("\t\"" name "\",");
|
|
|
|
# flags
|
|
|
|
vppwillrele = "";
|
|
|
|
for (i = 0; i < numargs; i++) {
|
|
|
|
if (types[i] == "struct vnode **" && \
|
|
|
|
reles[i] == "WILLRELE") {
|
|
|
|
vppwillrele = "|VDESC_VPP_WILLRELE";
|
|
|
|
}
|
|
|
|
}
|
1999-09-26 18:31:51 +00:00
|
|
|
|
2002-03-01 01:20:23 +00:00
|
|
|
if (!releflags)
|
|
|
|
releflags = "0";
|
|
|
|
printc("\t" releflags vppwillrele ",");
|
|
|
|
|
2005-01-13 07:53:01 +00:00
|
|
|
# function to call
|
2005-12-14 00:49:52 +00:00
|
|
|
printc("\t(vop_bypass_t *)" uname "_AP,");
|
2002-03-01 01:20:23 +00:00
|
|
|
# vp offsets
|
|
|
|
printc("\t" name "_vp_offsets,");
|
|
|
|
# vpp (if any)
|
|
|
|
printc("\t" find_arg_with_type("struct vnode **") ",");
|
|
|
|
# cred (if any)
|
|
|
|
printc("\t" find_arg_with_type("struct ucred *") ",");
|
|
|
|
# thread (if any)
|
|
|
|
printc("\t" find_arg_with_type("struct thread *") ",");
|
|
|
|
# componentname
|
|
|
|
printc("\t" find_arg_with_type("struct componentname *") ",");
|
|
|
|
# transport layer information
|
2005-12-14 00:15:11 +00:00
|
|
|
printc("};\n");
|
2002-03-01 01:20:23 +00:00
|
|
|
}
|
1999-09-26 18:31:51 +00:00
|
|
|
}
|
1999-12-12 16:43:05 +00:00
|
|
|
|
2004-12-01 23:16:38 +00:00
|
|
|
if (pfile)
|
|
|
|
printp("};")
|
|
|
|
|
2002-03-01 01:20:23 +00:00
|
|
|
if (hfile)
|
|
|
|
close(hfile);
|
|
|
|
if (cfile)
|
|
|
|
close(cfile);
|
2004-12-01 23:16:38 +00:00
|
|
|
if (pfile)
|
|
|
|
close(pfile);
|
2002-03-01 01:20:23 +00:00
|
|
|
close(srcfile);
|
1999-09-26 18:31:51 +00:00
|
|
|
|
|
|
|
exit 0;
|
|
|
|
|
|
|
|
}
|