31b1ddae74
- Make the VI asserts more orthogonal to the rest of the asserts by using a new, common vfs_badlock() function and adding a 'str' arg. - Adjust generated ASSERTS to match the new prototype. - Adjust explicit ASSERTS to match the new prototype.
364 lines
9.2 KiB
Awk
364 lines
9.2 KiB
Awk
#!/usr/bin/awk -f
|
|
|
|
#
|
|
# Copyright (c) 1992, 1993
|
|
# The Regents of the University of California. All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions
|
|
# are met:
|
|
# 1. Redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer.
|
|
# 2. Redistributions in binary form must reproduce the above copyright
|
|
# notice, this list of conditions and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
# 3. All advertising materials mentioning features or use of this software
|
|
# must display the following acknowledgement:
|
|
# This product includes software developed by the University of
|
|
# California, Berkeley and its contributors.
|
|
# 4. Neither the name of the University nor the names of its contributors
|
|
# may be used to endorse or promote products derived from this software
|
|
# without specific prior written permission.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
# SUCH DAMAGE.
|
|
#
|
|
# @(#)vnode_if.sh 8.1 (Berkeley) 6/10/93
|
|
# $FreeBSD$
|
|
#
|
|
# Script to produce VFS front-end sugar.
|
|
#
|
|
# usage: vnode_if.awk <srcfile> [-c | -h]
|
|
# (where <srcfile> is currently /sys/kern/vnode_if.src)
|
|
#
|
|
|
|
function usage()
|
|
{
|
|
print "usage: vnode_if.awk <srcfile> [-c|-h]";
|
|
exit 1;
|
|
}
|
|
|
|
function die(msg, what)
|
|
{
|
|
printf msg "\n", what > "/dev/stderr";
|
|
exit 1;
|
|
}
|
|
|
|
function t_spc(type)
|
|
{
|
|
# Append a space if the type is not a pointer
|
|
return (type ~ /\*$/) ? type : type " ";
|
|
}
|
|
|
|
# These are just for convenience ...
|
|
function printc(s) {print s > cfile;}
|
|
function printh(s) {print s > hfile;}
|
|
|
|
function add_debug_code(name, arg, pos)
|
|
{
|
|
if (lockdata[name, arg, pos]) {
|
|
printh("\tASSERT_VI_UNLOCKED("arg", \""uname"\");");
|
|
# Add assertions for locking
|
|
if (lockdata[name, arg, pos] == "L")
|
|
printh("\tASSERT_VOP_LOCKED("arg", \""uname"\");");
|
|
else if (lockdata[name, arg, pos] == "U")
|
|
printh("\tASSERT_VOP_UNLOCKED("arg", \""uname"\");");
|
|
else if (0) {
|
|
# XXX More checks!
|
|
}
|
|
}
|
|
}
|
|
|
|
function add_debug_pre(name)
|
|
{
|
|
if (lockdata[name, "pre"]) {
|
|
printh("#ifdef DEBUG_VFS_LOCKS");
|
|
printh("\t"lockdata[name, "pre"]"(&a);");
|
|
printh("#endif");
|
|
}
|
|
}
|
|
|
|
function add_debug_post(name)
|
|
{
|
|
if (lockdata[name, "post"]) {
|
|
printh("#ifdef DEBUG_VFS_LOCKS");
|
|
printh("\t"lockdata[name, "post"]"(&a, rc);");
|
|
printh("#endif");
|
|
}
|
|
}
|
|
|
|
function find_arg_with_type (type)
|
|
{
|
|
for (jj = 0; jj < numargs; jj++) {
|
|
if (types[jj] == type) {
|
|
return "VOPARG_OFFSETOF(struct " \
|
|
name "_args,a_" args[jj] ")";
|
|
}
|
|
}
|
|
|
|
return "VDESC_NO_OFFSET";
|
|
}
|
|
|
|
BEGIN{
|
|
|
|
# Process the command line
|
|
for (i = 1; i < ARGC; i++) {
|
|
arg = ARGV[i];
|
|
if (arg !~ /^-[ch]+$/ && arg !~ /\.src$/)
|
|
usage();
|
|
if (arg ~ /^-.*c/)
|
|
cfile = "vnode_if.c";
|
|
if (arg ~ /^-.*h/)
|
|
hfile = "vnode_if.h";
|
|
if (arg ~ /\.src$/)
|
|
srcfile = arg;
|
|
}
|
|
ARGC = 1;
|
|
|
|
if (!cfile && !hfile)
|
|
exit 0;
|
|
|
|
if (!srcfile)
|
|
usage();
|
|
|
|
common_head = \
|
|
"/*\n" \
|
|
" * This file is produced automatically.\n" \
|
|
" * Do not modify anything in here by hand.\n" \
|
|
" *\n" \
|
|
" * Created from $FreeBSD$\n" \
|
|
" */\n" \
|
|
"\n";
|
|
|
|
if (hfile)
|
|
printh(common_head "extern struct vnodeop_desc vop_default_desc;");
|
|
|
|
if (cfile) {
|
|
printc(common_head \
|
|
"#include <sys/param.h>\n" \
|
|
"#include <sys/systm.h>\n" \
|
|
"#include <sys/vnode.h>\n" \
|
|
"\n" \
|
|
"struct vnodeop_desc vop_default_desc = {\n" \
|
|
" 1,\t\t\t/* special case, vop_default => 1 */\n" \
|
|
" \"default\",\n" \
|
|
" 0,\n" \
|
|
" NULL,\n" \
|
|
" VDESC_NO_OFFSET,\n" \
|
|
" VDESC_NO_OFFSET,\n" \
|
|
" VDESC_NO_OFFSET,\n" \
|
|
" VDESC_NO_OFFSET,\n" \
|
|
" NULL,\n" \
|
|
"};\n");
|
|
}
|
|
|
|
while ((getline < srcfile) > 0) {
|
|
if (NF == 0)
|
|
continue;
|
|
if ($1 ~ /^#%/) {
|
|
if (NF != 6 || $1 != "#%" || \
|
|
$2 !~ /^[a-z]+$/ || $3 !~ /^[a-z]+$/ || \
|
|
$4 !~ /^.$/ || $5 !~ /^.$/ || $6 !~ /^.$/)
|
|
continue;
|
|
if ($3 == "vpp")
|
|
$3 = "*vpp";
|
|
lockdata["vop_" $2, $3, "Entry"] = $4;
|
|
lockdata["vop_" $2, $3, "OK"] = $5;
|
|
lockdata["vop_" $2, $3, "Error"] = $6;
|
|
continue;
|
|
}
|
|
|
|
if ($1 ~ /^#!/) {
|
|
if (NF != 4 || $1 != "#!")
|
|
continue;
|
|
if ($3 != "pre" && $3 != "post")
|
|
continue;
|
|
lockdata["vop_" $2, $3] = $4;
|
|
continue;
|
|
}
|
|
if ($1 ~ /^#/)
|
|
continue;
|
|
|
|
# Get the function name.
|
|
name = $1;
|
|
uname = toupper(name);
|
|
|
|
# Start constructing a ktrpoint string
|
|
ctrstr = "\"" uname;
|
|
# Get the function arguments.
|
|
for (numargs = 0; ; ++numargs) {
|
|
if ((getline < srcfile) <= 0) {
|
|
die("Unable to read through the arguments for \"%s\"",
|
|
name);
|
|
}
|
|
if ($1 ~ /^\};/)
|
|
break;
|
|
|
|
# Delete comments, if any.
|
|
gsub (/\/\*.*\*\//, "");
|
|
|
|
# Condense whitespace and delete leading/trailing space.
|
|
gsub(/[[:space:]]+/, " ");
|
|
sub(/^ /, "");
|
|
sub(/ $/, "");
|
|
|
|
# Pick off direction.
|
|
if ($1 != "INOUT" && $1 != "IN" && $1 != "OUT")
|
|
die("No IN/OUT direction for \"%s\".", $0);
|
|
dirs[numargs] = $1;
|
|
sub(/^[A-Z]* /, "");
|
|
|
|
if ((reles[numargs] = $1) == "WILLRELE")
|
|
sub(/^[A-Z]* /, "");
|
|
else
|
|
reles[numargs] = "WONTRELE";
|
|
|
|
# kill trailing ;
|
|
if (sub(/;$/, "") < 1)
|
|
die("Missing end-of-line ; in \"%s\".", $0);
|
|
|
|
# pick off variable name
|
|
if ((argp = match($0, /[A-Za-z0-9_]+$/)) < 1)
|
|
die("Missing var name \"a_foo\" in \"%s\".", $0);
|
|
args[numargs] = substr($0, argp);
|
|
$0 = substr($0, 1, argp - 1);
|
|
|
|
# what is left must be type
|
|
# remove trailing space (if any)
|
|
sub(/ $/, "");
|
|
types[numargs] = $0;
|
|
|
|
# We can do a maximum of 6 arguments to CTR*
|
|
if (numargs <= 6) {
|
|
if (numargs == 0)
|
|
ctrstr = ctrstr "(" args[numargs];
|
|
else
|
|
ctrstr = ctrstr ", " args[numargs];
|
|
if (types[numargs] ~ /\*/)
|
|
ctrstr = ctrstr " 0x%lX";
|
|
else
|
|
ctrstr = ctrstr " %ld";
|
|
}
|
|
}
|
|
if (numargs > 6)
|
|
ctrargs = 6;
|
|
else
|
|
ctrargs = numargs;
|
|
ctrstr = "\tCTR" ctrargs "(KTR_VOP, " ctrstr ")\"";
|
|
for (i = 0; i < ctrargs; ++i)
|
|
ctrstr = ctrstr ", " args[i];
|
|
ctrstr = ctrstr ");";
|
|
|
|
if (hfile) {
|
|
# Print out the vop_F_args structure.
|
|
printh("struct "name"_args {\n\tstruct vnodeop_desc *a_desc;");
|
|
for (i = 0; i < numargs; ++i)
|
|
printh("\t" t_spc(types[i]) "a_" args[i] ";");
|
|
printh("};");
|
|
|
|
# Print out extern declaration.
|
|
printh("extern struct vnodeop_desc " name "_desc;");
|
|
|
|
# Print out function.
|
|
printh("static __inline int " uname "(");
|
|
for (i = 0; i < numargs; ++i) {
|
|
printh("\t" t_spc(types[i]) args[i] \
|
|
(i < numargs - 1 ? "," : ")"));
|
|
}
|
|
printh("{\n\tstruct " name "_args a;");
|
|
printh("\tint rc;");
|
|
printh("\ta.a_desc = VDESC(" name ");");
|
|
for (i = 0; i < numargs; ++i)
|
|
printh("\ta.a_" args[i] " = " args[i] ";");
|
|
for (i = 0; i < numargs; ++i)
|
|
add_debug_code(name, args[i], "Entry");
|
|
add_debug_pre(name);
|
|
printh("\trc = VCALL(" args[0] ", VOFFSET(" name "), &a);");
|
|
printh(ctrstr);
|
|
printh("if (rc == 0) {");
|
|
for (i = 0; i < numargs; ++i)
|
|
add_debug_code(name, args[i], "OK");
|
|
printh("} else {");
|
|
for (i = 0; i < numargs; ++i)
|
|
add_debug_code(name, args[i], "Error");
|
|
printh("}");
|
|
add_debug_post(name);
|
|
printh("\treturn (rc);\n}");
|
|
}
|
|
|
|
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++;
|
|
}
|
|
}
|
|
|
|
sub(/^\|/, "", releflags);
|
|
printc("\tVDESC_NO_OFFSET");
|
|
printc("};");
|
|
|
|
# Print out the vnodeop_desc structure.
|
|
printc("struct vnodeop_desc " name "_desc = {");
|
|
# offset
|
|
printc("\t0,");
|
|
# 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";
|
|
}
|
|
}
|
|
|
|
if (!releflags)
|
|
releflags = "0";
|
|
printc("\t" releflags vppwillrele ",");
|
|
|
|
# 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
|
|
printc("\tNULL,\n};\n");
|
|
}
|
|
}
|
|
|
|
if (hfile)
|
|
close(hfile);
|
|
if (cfile)
|
|
close(cfile);
|
|
close(srcfile);
|
|
|
|
exit 0;
|
|
|
|
}
|