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32 results

kernel-doc

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  • kernel-doc 84.47 KiB
    #!/usr/bin/perl -w
    
    use strict;
    
    ## Copyright (c) 1998 Michael Zucchi, All Rights Reserved        ##
    ## Copyright (C) 2000, 1  Tim Waugh <twaugh@redhat.com>          ##
    ## Copyright (C) 2001  Simon Huggins                             ##
    ## Copyright (C) 2005-2012  Randy Dunlap                         ##
    ## Copyright (C) 2012  Dan Luedtke                               ##
    ## 								 ##
    ## #define enhancements by Armin Kuster <akuster@mvista.com>	 ##
    ## Copyright (c) 2000 MontaVista Software, Inc.			 ##
    ## 								 ##
    ## This software falls under the GNU General Public License.     ##
    ## Please read the COPYING file for more information             ##
    
    # 18/01/2001 - 	Cleanups
    # 		Functions prototyped as foo(void) same as foo()
    # 		Stop eval'ing where we don't need to.
    # -- huggie@earth.li
    
    # 27/06/2001 -  Allowed whitespace after initial "/**" and
    #               allowed comments before function declarations.
    # -- Christian Kreibich <ck@whoop.org>
    
    # Still to do:
    # 	- add perldoc documentation
    # 	- Look more closely at some of the scarier bits :)
    
    # 26/05/2001 - 	Support for separate source and object trees.
    #		Return error code.
    # 		Keith Owens <kaos@ocs.com.au>
    
    # 23/09/2001 - Added support for typedefs, structs, enums and unions
    #              Support for Context section; can be terminated using empty line
    #              Small fixes (like spaces vs. \s in regex)
    # -- Tim Jansen <tim@tjansen.de>
    
    # 25/07/2012 - Added support for HTML5
    # -- Dan Luedtke <mail@danrl.de>
    
    sub usage {
        my $message = <<"EOF";
    Usage: $0 [OPTION ...] FILE ...
    
    Read C language source or header FILEs, extract embedded documentation comments,
    and print formatted documentation to standard output.
    
    The documentation comments are identified by "/**" opening comment mark. See
    Documentation/kernel-doc-nano-HOWTO.txt for the documentation comment syntax.
    
    Output format selection (mutually exclusive):
      -docbook		Output DocBook format.
      -html			Output HTML format.
      -html5		Output HTML5 format.
      -list			Output symbol list format. This is for use by docproc.
      -man			Output troff manual page format. This is the default.
      -rst			Output reStructuredText format.
      -text			Output plain text format.
    
    Output selection (mutually exclusive):
      -export		Only output documentation for symbols that have been
    			exported using EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL()
    			in the same FILE.
      -internal		Only output documentation for symbols that have NOT been
    			exported using EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL()
    			in the same FILE.
      -function NAME	Only output documentation for the given function(s)
    			or DOC: section title(s). All other functions and DOC:
    			sections are ignored. May be specified multiple times.
      -nofunction NAME	Do NOT output documentation for the given function(s);
    			only output documentation for the other functions and
    			DOC: sections. May be specified multiple times.
    
    Output selection modifiers:
      -no-doc-sections	Do not output DOC: sections.
    
    Other parameters:
      -v			Verbose output, more warnings and other information.
      -h			Print this help.
    
    EOF
        print $message;
        exit 1;
    }
    
    #
    # format of comments.
    # In the following table, (...)? signifies optional structure.
    #                         (...)* signifies 0 or more structure elements
    # /**
    #  * function_name(:)? (- short description)?
    # (* @parameterx: (description of parameter x)?)*
    # (* a blank line)?
    #  * (Description:)? (Description of function)?
    #  * (section header: (section description)? )*
    #  (*)?*/
    #
    # So .. the trivial example would be:
    #
    # /**
    #  * my_function
    #  */
    #
    # If the Description: header tag is omitted, then there must be a blank line
    # after the last parameter specification.
    # e.g.
    # /**
    #  * my_function - does my stuff
    #  * @my_arg: its mine damnit
    #  *
    #  * Does my stuff explained.
    #  */
    #
    #  or, could also use:
    # /**
    #  * my_function - does my stuff
    #  * @my_arg: its mine damnit
    #  * Description: Does my stuff explained.
    #  */
    # etc.
    #
    # Besides functions you can also write documentation for structs, unions,
    # enums and typedefs. Instead of the function name you must write the name
    # of the declaration;  the struct/union/enum/typedef must always precede
    # the name. Nesting of declarations is not supported.
    # Use the argument mechanism to document members or constants.
    # e.g.
    # /**
    #  * struct my_struct - short description
    #  * @a: first member
    #  * @b: second member
    #  *
    #  * Longer description
    #  */
    # struct my_struct {
    #     int a;
    #     int b;
    # /* private: */
    #     int c;
    # };
    #
    # All descriptions can be multiline, except the short function description.
    #
    # For really longs structs, you can also describe arguments inside the
    # body of the struct.
    # eg.
    # /**
    #  * struct my_struct - short description
    #  * @a: first member
    #  * @b: second member
    #  *
    #  * Longer description
    #  */
    # struct my_struct {
    #     int a;
    #     int b;
    #     /**
    #      * @c: This is longer description of C
    #      *
    #      * You can use paragraphs to describe arguments
    #      * using this method.
    #      */
    #     int c;
    # };
    #
    # This should be use only for struct/enum members.
    #
    # You can also add additional sections. When documenting kernel functions you
    # should document the "Context:" of the function, e.g. whether the functions
    # can be called form interrupts. Unlike other sections you can end it with an
    # empty line.
    # A non-void function should have a "Return:" section describing the return
    # value(s).
    # Example-sections should contain the string EXAMPLE so that they are marked
    # appropriately in DocBook.
    #
    # Example:
    # /**
    #  * user_function - function that can only be called in user context
    #  * @a: some argument
    #  * Context: !in_interrupt()
    #  *
    #  * Some description
    #  * Example:
    #  *    user_function(22);
    #  */
    # ...
    #
    #
    # All descriptive text is further processed, scanning for the following special
    # patterns, which are highlighted appropriately.
    #
    # 'funcname()' - function
    # '$ENVVAR' - environmental variable
    # '&struct_name' - name of a structure (up to two words including 'struct')
    # '@parameter' - name of a parameter
    # '%CONST' - name of a constant.
    
    ## init lots of data
    
    my $errors = 0;
    my $warnings = 0;
    my $anon_struct_union = 0;
    
    # match expressions used to find embedded type information
    my $type_constant = '\%([-_\w]+)';
    my $type_func = '(\w+)\(\)';
    my $type_param = '\@(\w+)';
    my $type_struct = '\&((struct\s*)*[_\w]+)';
    my $type_struct_xml = '\\&amp;((struct\s*)*[_\w]+)';
    my $type_env = '(\$\w+)';
    my $type_enum_full = '\&(enum)\s*([_\w]+)';
    my $type_struct_full = '\&(struct)\s*([_\w]+)';
    my $type_typedef_full = '\&(typedef)\s*([_\w]+)';
    my $type_union_full = '\&(union)\s*([_\w]+)';
    my $type_member = '\&([_\w]+)((\.|->)[_\w]+)';
    my $type_member_func = $type_member . '\(\)';
    
    # Output conversion substitutions.
    #  One for each output format
    
    # these work fairly well
    my @highlights_html = (
                           [$type_constant, "<i>\$1</i>"],
                           [$type_func, "<b>\$1</b>"],
                           [$type_struct_xml, "<i>\$1</i>"],
                           [$type_env, "<b><i>\$1</i></b>"],
                           [$type_param, "<tt><b>\$1</b></tt>"]
                          );
    my $local_lt = "\\\\\\\\lt:";
    my $local_gt = "\\\\\\\\gt:";
    my $blankline_html = $local_lt . "p" . $local_gt;	# was "<p>"
    
    # html version 5
    my @highlights_html5 = (
                            [$type_constant, "<span class=\"const\">\$1</span>"],
                            [$type_func, "<span class=\"func\">\$1</span>"],
                            [$type_struct_xml, "<span class=\"struct\">\$1</span>"],
                            [$type_env, "<span class=\"env\">\$1</span>"],
                            [$type_param, "<span class=\"param\">\$1</span>]"]
    		       );
    my $blankline_html5 = $local_lt . "br /" . $local_gt;
    
    # XML, docbook format
    my @highlights_xml = (
                          ["([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>"],
                          [$type_constant, "<constant>\$1</constant>"],
                          [$type_struct_xml, "<structname>\$1</structname>"],
                          [$type_param, "<parameter>\$1</parameter>"],
                          [$type_func, "<function>\$1</function>"],
                          [$type_env, "<envar>\$1</envar>"]
    		     );
    my $blankline_xml = $local_lt . "/para" . $local_gt . $local_lt . "para" . $local_gt . "\n";
    
    # gnome, docbook format
    my @highlights_gnome = (
                            [$type_constant, "<replaceable class=\"option\">\$1</replaceable>"],
                            [$type_func, "<function>\$1</function>"],
                            [$type_struct, "<structname>\$1</structname>"],
                            [$type_env, "<envar>\$1</envar>"],
                            [$type_param, "<parameter>\$1</parameter>" ]
    		       );
    my $blankline_gnome = "</para><para>\n";
    
    # these are pretty rough
    my @highlights_man = (
                          [$type_constant, "\$1"],
                          [$type_func, "\\\\fB\$1\\\\fP"],
                          [$type_struct, "\\\\fI\$1\\\\fP"],
                          [$type_param, "\\\\fI\$1\\\\fP"]
    		     );
    my $blankline_man = "";
    
    # text-mode
    my @highlights_text = (
                           [$type_constant, "\$1"],
                           [$type_func, "\$1"],
                           [$type_struct, "\$1"],
                           [$type_param, "\$1"]
    		      );
    my $blankline_text = "";
    
    # rst-mode
    my @highlights_rst = (
                           [$type_constant, "``\$1``"],
                           # Note: need to escape () to avoid func matching later
                           [$type_member_func, "\\:c\\:type\\:`\$1\$2\\\\(\\\\) <\$1>`"],
                           [$type_member, "\\:c\\:type\\:`\$1\$2 <\$1>`"],
                           [$type_func, "\\:c\\:func\\:`\$1()`"],
                           [$type_struct_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
                           [$type_enum_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
                           [$type_typedef_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
                           [$type_union_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
                           # in rst this can refer to any type
                           [$type_struct, "\\:c\\:type\\:`\$1`"],
                           [$type_param, "**\$1**"]
    		      );
    my $blankline_rst = "\n";
    
    # list mode
    my @highlights_list = (
                           [$type_constant, "\$1"],
                           [$type_func, "\$1"],
                           [$type_struct, "\$1"],
                           [$type_param, "\$1"]
    		      );
    my $blankline_list = "";
    
    # read arguments
    if ($#ARGV == -1) {
        usage();
    }
    
    my $kernelversion;
    my $dohighlight = "";
    
    my $verbose = 0;
    my $output_mode = "man";
    my $output_preformatted = 0;
    my $no_doc_sections = 0;
    my @highlights = @highlights_man;
    my $blankline = $blankline_man;
    my $modulename = "Kernel API";
    
    use constant {
        OUTPUT_ALL          => 0, # output all symbols and doc sections
        OUTPUT_INCLUDE      => 1, # output only specified symbols
        OUTPUT_EXCLUDE      => 2, # output everything except specified symbols
        OUTPUT_EXPORTED     => 3, # output exported symbols
        OUTPUT_INTERNAL     => 4, # output non-exported symbols
    };
    my $output_selection = OUTPUT_ALL;
    my $show_not_found = 0;
    
    my @build_time;
    if (defined($ENV{'KBUILD_BUILD_TIMESTAMP'}) &&
        (my $seconds = `date -d"${ENV{'KBUILD_BUILD_TIMESTAMP'}}" +%s`) ne '') {
        @build_time = gmtime($seconds);
    } else {
        @build_time = localtime;
    }
    
    my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
    		'July', 'August', 'September', 'October',
    		'November', 'December')[$build_time[4]] .
      " " . ($build_time[5]+1900);
    
    # Essentially these are globals.
    # They probably want to be tidied up, made more localised or something.
    # CAVEAT EMPTOR!  Some of the others I localised may not want to be, which
    # could cause "use of undefined value" or other bugs.
    my ($function, %function_table, %parametertypes, $declaration_purpose);
    my ($type, $declaration_name, $return_type);
    my ($newsection, $newcontents, $prototype, $brcount, %source_map);
    
    if (defined($ENV{'KBUILD_VERBOSE'})) {
    	$verbose = "$ENV{'KBUILD_VERBOSE'}";
    }
    
    # Generated docbook code is inserted in a template at a point where
    # docbook v3.1 requires a non-zero sequence of RefEntry's; see:
    # http://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
    # We keep track of number of generated entries and generate a dummy
    # if needs be to ensure the expanded template can be postprocessed
    # into html.
    my $section_counter = 0;
    
    my $lineprefix="";
    
    # Parser states
    use constant {
        STATE_NORMAL        => 0, # normal code
        STATE_NAME          => 1, # looking for function name
        STATE_FIELD         => 2, # scanning field start
        STATE_PROTO         => 3, # scanning prototype
        STATE_DOCBLOCK      => 4, # documentation block
        STATE_INLINE        => 5, # gathering documentation outside main block
    };
    my $state;
    my $in_doc_sect;
    
    # Inline documentation state
    use constant {
        STATE_INLINE_NA     => 0, # not applicable ($state != STATE_INLINE)
        STATE_INLINE_NAME   => 1, # looking for member name (@foo:)
        STATE_INLINE_TEXT   => 2, # looking for member documentation
        STATE_INLINE_END    => 3, # done
        STATE_INLINE_ERROR  => 4, # error - Comment without header was found.
                                  # Spit a warning as it's not
                                  # proper kernel-doc and ignore the rest.
    };
    my $inline_doc_state;
    
    #declaration types: can be
    # 'function', 'struct', 'union', 'enum', 'typedef'
    my $decl_type;
    
    my $doc_special = "\@\%\$\&";
    
    my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
    my $doc_end = '\*/';
    my $doc_com = '\s*\*\s*';
    my $doc_com_body = '\s*\* ?';
    my $doc_decl = $doc_com . '(\w+)';
    my $doc_sect = $doc_com . '([' . $doc_special . ']?[\w\s]+):(.*)';
    my $doc_content = $doc_com_body . '(.*)';
    my $doc_block = $doc_com . 'DOC:\s*(.*)?';
    my $doc_inline_start = '^\s*/\*\*\s*$';
    my $doc_inline_sect = '\s*\*\s*(@[\w\s]+):(.*)';
    my $doc_inline_end = '^\s*\*/\s*$';
    my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
    
    my %constants;
    my %parameterdescs;
    my @parameterlist;
    my %sections;
    my @sectionlist;
    my $sectcheck;
    my $struct_actual;
    
    my $contents = "";
    my $section_default = "Description";	# default section
    my $section_intro = "Introduction";
    my $section = $section_default;
    my $section_context = "Context";
    my $section_return = "Return";
    
    my $undescribed = "-- undescribed --";
    
    reset_state();
    
    while ($ARGV[0] =~ m/^-(.*)/) {
        my $cmd = shift @ARGV;
        if ($cmd eq "-html") {
    	$output_mode = "html";
    	@highlights = @highlights_html;
    	$blankline = $blankline_html;
        } elsif ($cmd eq "-html5") {
    	$output_mode = "html5";
    	@highlights = @highlights_html5;
    	$blankline = $blankline_html5;
        } elsif ($cmd eq "-man") {
    	$output_mode = "man";
    	@highlights = @highlights_man;
    	$blankline = $blankline_man;
        } elsif ($cmd eq "-text") {
    	$output_mode = "text";
    	@highlights = @highlights_text;
    	$blankline = $blankline_text;
        } elsif ($cmd eq "-rst") {
    	$output_mode = "rst";
    	@highlights = @highlights_rst;
    	$blankline = $blankline_rst;
        } elsif ($cmd eq "-docbook") {
    	$output_mode = "xml";
    	@highlights = @highlights_xml;
    	$blankline = $blankline_xml;
        } elsif ($cmd eq "-list") {
    	$output_mode = "list";
    	@highlights = @highlights_list;
    	$blankline = $blankline_list;
        } elsif ($cmd eq "-gnome") {
    	$output_mode = "gnome";
    	@highlights = @highlights_gnome;
    	$blankline = $blankline_gnome;
        } elsif ($cmd eq "-module") { # not needed for XML, inherits from calling document
    	$modulename = shift @ARGV;
        } elsif ($cmd eq "-function") { # to only output specific functions
    	$output_selection = OUTPUT_INCLUDE;
    	$function = shift @ARGV;
    	$function_table{$function} = 1;
        } elsif ($cmd eq "-nofunction") { # output all except specific functions
    	$output_selection = OUTPUT_EXCLUDE;
    	$function = shift @ARGV;
    	$function_table{$function} = 1;
        } elsif ($cmd eq "-export") { # only exported symbols
    	$output_selection = OUTPUT_EXPORTED;
    	%function_table = ()
        } elsif ($cmd eq "-internal") { # only non-exported symbols
    	$output_selection = OUTPUT_INTERNAL;
    	%function_table = ()
        } elsif ($cmd eq "-v") {
    	$verbose = 1;
        } elsif (($cmd eq "-h") || ($cmd eq "--help")) {
    	usage();
        } elsif ($cmd eq '-no-doc-sections') {
    	    $no_doc_sections = 1;
        } elsif ($cmd eq '-show-not-found') {
    	$show_not_found = 1;
        }
    }
    
    # continue execution near EOF;
    
    # get kernel version from env
    sub get_kernel_version() {
        my $version = 'unknown kernel version';
    
        if (defined($ENV{'KERNELVERSION'})) {
    	$version = $ENV{'KERNELVERSION'};
        }
        return $version;
    }
    
    ##
    # dumps section contents to arrays/hashes intended for that purpose.
    #
    sub dump_section {
        my $file = shift;
        my $name = shift;
        my $contents = join "\n", @_;
    
        if ($name =~ m/$type_constant/) {
    	$name = $1;
    #	print STDERR "constant section '$1' = '$contents'\n";
    	$constants{$name} = $contents;
        } elsif ($name =~ m/$type_param/) {
    #	print STDERR "parameter def '$1' = '$contents'\n";
    	$name = $1;
    	$parameterdescs{$name} = $contents;
    	$sectcheck = $sectcheck . $name . " ";
        } elsif ($name eq "@\.\.\.") {
    #	print STDERR "parameter def '...' = '$contents'\n";
    	$name = "...";
    	$parameterdescs{$name} = $contents;
    	$sectcheck = $sectcheck . $name . " ";
        } else {
    #	print STDERR "other section '$name' = '$contents'\n";
    	if (defined($sections{$name}) && ($sections{$name} ne "")) {
    		print STDERR "${file}:$.: error: duplicate section name '$name'\n";
    		++$errors;
    	}
    	$sections{$name} = $contents;
    	push @sectionlist, $name;
        }
    }
    
    ##
    # dump DOC: section after checking that it should go out
    #
    sub dump_doc_section {
        my $file = shift;
        my $name = shift;
        my $contents = join "\n", @_;
    
        if ($no_doc_sections) {
            return;
        }
    
        if (($output_selection == OUTPUT_ALL) ||
    	($output_selection == OUTPUT_INCLUDE &&
    	 defined($function_table{$name})) ||
    	($output_selection == OUTPUT_EXCLUDE &&
    	 !defined($function_table{$name})))
        {
    	dump_section($file, $name, $contents);
    	output_blockhead({'sectionlist' => \@sectionlist,
    			  'sections' => \%sections,
    			  'module' => $modulename,
    			  'content-only' => ($output_selection != OUTPUT_ALL), });
        }
    }
    
    ##
    # output function
    #
    # parameterdescs, a hash.
    #  function => "function name"
    #  parameterlist => @list of parameters
    #  parameterdescs => %parameter descriptions
    #  sectionlist => @list of sections
    #  sections => %section descriptions
    #
    
    sub output_highlight {
        my $contents = join "\n",@_;
        my $line;
    
    #   DEBUG
    #   if (!defined $contents) {
    #	use Carp;
    #	confess "output_highlight got called with no args?\n";
    #   }
    
        if ($output_mode eq "html" || $output_mode eq "html5" ||
    	$output_mode eq "xml") {
    	$contents = local_unescape($contents);
    	# convert data read & converted thru xml_escape() into &xyz; format:
    	$contents =~ s/\\\\\\/\&/g;
        }
    #   print STDERR "contents b4:$contents\n";
        eval $dohighlight;
        die $@ if $@;
    #   print STDERR "contents af:$contents\n";
    
    #   strip whitespaces when generating html5
        if ($output_mode eq "html5") {
    	$contents =~ s/^\s+//;
    	$contents =~ s/\s+$//;
        }
        foreach $line (split "\n", $contents) {
    	if (! $output_preformatted) {
    	    $line =~ s/^\s*//;
    	}
    	if ($line eq ""){
    	    if (! $output_preformatted) {
    		print $lineprefix, local_unescape($blankline);
    	    }
    	} else {
    	    $line =~ s/\\\\\\/\&/g;
    	    if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
    		print "\\&$line";
    	    } else {
    		print $lineprefix, $line;
    	    }
    	}
    	print "\n";
        }
    }
    
    # output sections in html
    sub output_section_html(%) {
        my %args = %{$_[0]};
        my $section;
    
        foreach $section (@{$args{'sectionlist'}}) {
    	print "<h3>$section</h3>\n";
    	print "<blockquote>\n";
    	output_highlight($args{'sections'}{$section});
    	print "</blockquote>\n";
        }
    }
    
    # output enum in html
    sub output_enum_html(%) {
        my %args = %{$_[0]};
        my ($parameter);
        my $count;
        print "<h2>enum " . $args{'enum'} . "</h2>\n";
    
        print "<b>enum " . $args{'enum'} . "</b> {<br>\n";
        $count = 0;
        foreach $parameter (@{$args{'parameterlist'}}) {
    	print " <b>" . $parameter . "</b>";
    	if ($count != $#{$args{'parameterlist'}}) {
    	    $count++;
    	    print ",\n";
    	}
    	print "<br>";
        }
        print "};<br>\n";
    
        print "<h3>Constants</h3>\n";
        print "<dl>\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	print "<dt><b>" . $parameter . "</b>\n";
    	print "<dd>";
    	output_highlight($args{'parameterdescs'}{$parameter});
        }
        print "</dl>\n";
        output_section_html(@_);
        print "<hr>\n";
    }
    
    # output typedef in html
    sub output_typedef_html(%) {
        my %args = %{$_[0]};
        my ($parameter);
        my $count;
        print "<h2>typedef " . $args{'typedef'} . "</h2>\n";
    
        print "<b>typedef " . $args{'typedef'} . "</b>\n";
        output_section_html(@_);
        print "<hr>\n";
    }
    
    # output struct in html
    sub output_struct_html(%) {
        my %args = %{$_[0]};
        my ($parameter);
    
        print "<h2>" . $args{'type'} . " " . $args{'struct'} . " - " . $args{'purpose'} . "</h2>\n";
        print "<b>" . $args{'type'} . " " . $args{'struct'} . "</b> {<br>\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	if ($parameter =~ /^#/) {
    		print "$parameter<br>\n";
    		next;
    	}
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	$type = $args{'parametertypes'}{$parameter};
    	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    	    # pointer-to-function
    	    print "&nbsp; &nbsp; <i>$1</i><b>$parameter</b>) <i>($2)</i>;<br>\n";
    	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
    	    # bitfield
    	    print "&nbsp; &nbsp; <i>$1</i> <b>$parameter</b>$2;<br>\n";
    	} else {
    	    print "&nbsp; &nbsp; <i>$type</i> <b>$parameter</b>;<br>\n";
    	}
        }
        print "};<br>\n";
    
        print "<h3>Members</h3>\n";
        print "<dl>\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	($parameter =~ /^#/) && next;
    
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	print "<dt><b>" . $parameter . "</b>\n";
    	print "<dd>";
    	output_highlight($args{'parameterdescs'}{$parameter_name});
        }
        print "</dl>\n";
        output_section_html(@_);
        print "<hr>\n";
    }
    
    # output function in html
    sub output_function_html(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $count;
    
        print "<h2>" . $args{'function'} . " - " . $args{'purpose'} . "</h2>\n";
        print "<i>" . $args{'functiontype'} . "</i>\n";
        print "<b>" . $args{'function'} . "</b>\n";
        print "(";
        $count = 0;
        foreach $parameter (@{$args{'parameterlist'}}) {
    	$type = $args{'parametertypes'}{$parameter};
    	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    	    # pointer-to-function
    	    print "<i>$1</i><b>$parameter</b>) <i>($2)</i>";
    	} else {
    	    print "<i>" . $type . "</i> <b>" . $parameter . "</b>";
    	}
    	if ($count != $#{$args{'parameterlist'}}) {
    	    $count++;
    	    print ",\n";
    	}
        }
        print ")\n";
    
        print "<h3>Arguments</h3>\n";
        print "<dl>\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	print "<dt><b>" . $parameter . "</b>\n";
    	print "<dd>";
    	output_highlight($args{'parameterdescs'}{$parameter_name});
        }
        print "</dl>\n";
        output_section_html(@_);
        print "<hr>\n";
    }
    
    # output DOC: block header in html
    sub output_blockhead_html(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $count;
    
        foreach $section (@{$args{'sectionlist'}}) {
    	print "<h3>$section</h3>\n";
    	print "<ul>\n";
    	output_highlight($args{'sections'}{$section});
    	print "</ul>\n";
        }
        print "<hr>\n";
    }
    
    # output sections in html5
    sub output_section_html5(%) {
        my %args = %{$_[0]};
        my $section;
    
        foreach $section (@{$args{'sectionlist'}}) {
    	print "<section>\n";
    	print "<h1>$section</h1>\n";
    	print "<p>\n";
    	output_highlight($args{'sections'}{$section});
    	print "</p>\n";
    	print "</section>\n";
        }
    }
    
    # output enum in html5
    sub output_enum_html5(%) {
        my %args = %{$_[0]};
        my ($parameter);
        my $count;
        my $html5id;
    
        $html5id = $args{'enum'};
        $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
        print "<article class=\"enum\" id=\"enum:". $html5id . "\">";
        print "<h1>enum " . $args{'enum'} . "</h1>\n";
        print "<ol class=\"code\">\n";
        print "<li>";
        print "<span class=\"keyword\">enum</span> ";
        print "<span class=\"identifier\">" . $args{'enum'} . "</span> {";
        print "</li>\n";
        $count = 0;
        foreach $parameter (@{$args{'parameterlist'}}) {
    	print "<li class=\"indent\">";
    	print "<span class=\"param\">" . $parameter . "</span>";
    	if ($count != $#{$args{'parameterlist'}}) {
    	    $count++;
    	    print ",";
    	}
    	print "</li>\n";
        }
        print "<li>};</li>\n";
        print "</ol>\n";
    
        print "<section>\n";
        print "<h1>Constants</h1>\n";
        print "<dl>\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	print "<dt>" . $parameter . "</dt>\n";
    	print "<dd>";
    	output_highlight($args{'parameterdescs'}{$parameter});
    	print "</dd>\n";
        }
        print "</dl>\n";
        print "</section>\n";
        output_section_html5(@_);
        print "</article>\n";
    }
    
    # output typedef in html5
    sub output_typedef_html5(%) {
        my %args = %{$_[0]};
        my ($parameter);
        my $count;
        my $html5id;
    
        $html5id = $args{'typedef'};
        $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
        print "<article class=\"typedef\" id=\"typedef:" . $html5id . "\">\n";
        print "<h1>typedef " . $args{'typedef'} . "</h1>\n";
    
        print "<ol class=\"code\">\n";
        print "<li>";
        print "<span class=\"keyword\">typedef</span> ";
        print "<span class=\"identifier\">" . $args{'typedef'} . "</span>";
        print "</li>\n";
        print "</ol>\n";
        output_section_html5(@_);
        print "</article>\n";
    }
    
    # output struct in html5
    sub output_struct_html5(%) {
        my %args = %{$_[0]};
        my ($parameter);
        my $html5id;
    
        $html5id = $args{'struct'};
        $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
        print "<article class=\"struct\" id=\"struct:" . $html5id . "\">\n";
        print "<hgroup>\n";
        print "<h1>" . $args{'type'} . " " . $args{'struct'} . "</h1>";
        print "<h2>". $args{'purpose'} . "</h2>\n";
        print "</hgroup>\n";
        print "<ol class=\"code\">\n";
        print "<li>";
        print "<span class=\"type\">" . $args{'type'} . "</span> ";
        print "<span class=\"identifier\">" . $args{'struct'} . "</span> {";
        print "</li>\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	print "<li class=\"indent\">";
    	if ($parameter =~ /^#/) {
    		print "<span class=\"param\">" . $parameter ."</span>\n";
    		print "</li>\n";
    		next;
    	}
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	$type = $args{'parametertypes'}{$parameter};
    	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    	    # pointer-to-function
    	    print "<span class=\"type\">$1</span> ";
    	    print "<span class=\"param\">$parameter</span>";
    	    print "<span class=\"type\">)</span> ";
    	    print "(<span class=\"args\">$2</span>);";
    	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
    	    # bitfield
    	    print "<span class=\"type\">$1</span> ";
    	    print "<span class=\"param\">$parameter</span>";
    	    print "<span class=\"bits\">$2</span>;";
    	} else {
    	    print "<span class=\"type\">$type</span> ";
    	    print "<span class=\"param\">$parameter</span>;";
    	}
    	print "</li>\n";
        }
        print "<li>};</li>\n";
        print "</ol>\n";
    
        print "<section>\n";
        print "<h1>Members</h1>\n";
        print "<dl>\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	($parameter =~ /^#/) && next;
    
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	print "<dt>" . $parameter . "</dt>\n";
    	print "<dd>";
    	output_highlight($args{'parameterdescs'}{$parameter_name});
    	print "</dd>\n";
        }
        print "</dl>\n";
        print "</section>\n";
        output_section_html5(@_);
        print "</article>\n";
    }
    
    # output function in html5
    sub output_function_html5(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $count;
        my $html5id;
    
        $html5id = $args{'function'};
        $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
        print "<article class=\"function\" id=\"func:". $html5id . "\">\n";
        print "<hgroup>\n";
        print "<h1>" . $args{'function'} . "</h1>";
        print "<h2>" . $args{'purpose'} . "</h2>\n";
        print "</hgroup>\n";
        print "<ol class=\"code\">\n";
        print "<li>";
        print "<span class=\"type\">" . $args{'functiontype'} . "</span> ";
        print "<span class=\"identifier\">" . $args{'function'} . "</span> (";
        print "</li>";
        $count = 0;
        foreach $parameter (@{$args{'parameterlist'}}) {
    	print "<li class=\"indent\">";
    	$type = $args{'parametertypes'}{$parameter};
    	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    	    # pointer-to-function
    	    print "<span class=\"type\">$1</span> ";
    	    print "<span class=\"param\">$parameter</span>";
    	    print "<span class=\"type\">)</span> ";
    	    print "(<span class=\"args\">$2</span>)";
    	} else {
    	    print "<span class=\"type\">$type</span> ";
    	    print "<span class=\"param\">$parameter</span>";
    	}
    	if ($count != $#{$args{'parameterlist'}}) {
    	    $count++;
    	    print ",";
    	}
    	print "</li>\n";
        }
        print "<li>)</li>\n";
        print "</ol>\n";
    
        print "<section>\n";
        print "<h1>Arguments</h1>\n";
        print "<p>\n";
        print "<dl>\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	print "<dt>" . $parameter . "</dt>\n";
    	print "<dd>";
    	output_highlight($args{'parameterdescs'}{$parameter_name});
    	print "</dd>\n";
        }
        print "</dl>\n";
        print "</section>\n";
        output_section_html5(@_);
        print "</article>\n";
    }
    
    # output DOC: block header in html5
    sub output_blockhead_html5(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $count;
        my $html5id;
    
        foreach $section (@{$args{'sectionlist'}}) {
    	$html5id = $section;
    	$html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
    	print "<article class=\"doc\" id=\"doc:". $html5id . "\">\n";
    	print "<h1>$section</h1>\n";
    	print "<p>\n";
    	output_highlight($args{'sections'}{$section});
    	print "</p>\n";
        }
        print "</article>\n";
    }
    
    sub output_section_xml(%) {
        my %args = %{$_[0]};
        my $section;
        # print out each section
        $lineprefix="   ";
        foreach $section (@{$args{'sectionlist'}}) {
    	print "<refsect1>\n";
    	print "<title>$section</title>\n";
    	if ($section =~ m/EXAMPLE/i) {
    	    print "<informalexample><programlisting>\n";
    	    $output_preformatted = 1;
    	} else {
    	    print "<para>\n";
    	}
    	output_highlight($args{'sections'}{$section});
    	$output_preformatted = 0;
    	if ($section =~ m/EXAMPLE/i) {
    	    print "</programlisting></informalexample>\n";
    	} else {
    	    print "</para>\n";
    	}
    	print "</refsect1>\n";
        }
    }
    
    # output function in XML DocBook
    sub output_function_xml(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $count;
        my $id;
    
        $id = "API-" . $args{'function'};
        $id =~ s/[^A-Za-z0-9]/-/g;
    
        print "<refentry id=\"$id\">\n";
        print "<refentryinfo>\n";
        print " <title>LINUX</title>\n";
        print " <productname>Kernel Hackers Manual</productname>\n";
        print " <date>$man_date</date>\n";
        print "</refentryinfo>\n";
        print "<refmeta>\n";
        print " <refentrytitle><phrase>" . $args{'function'} . "</phrase></refentrytitle>\n";
        print " <manvolnum>9</manvolnum>\n";
        print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
        print "</refmeta>\n";
        print "<refnamediv>\n";
        print " <refname>" . $args{'function'} . "</refname>\n";
        print " <refpurpose>\n";
        print "  ";
        output_highlight ($args{'purpose'});
        print " </refpurpose>\n";
        print "</refnamediv>\n";
    
        print "<refsynopsisdiv>\n";
        print " <title>Synopsis</title>\n";
        print "  <funcsynopsis><funcprototype>\n";
        print "   <funcdef>" . $args{'functiontype'} . " ";
        print "<function>" . $args{'function'} . " </function></funcdef>\n";
    
        $count = 0;
        if ($#{$args{'parameterlist'}} >= 0) {
    	foreach $parameter (@{$args{'parameterlist'}}) {
    	    $type = $args{'parametertypes'}{$parameter};
    	    if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    		# pointer-to-function
    		print "   <paramdef>$1<parameter>$parameter</parameter>)\n";
    		print "     <funcparams>$2</funcparams></paramdef>\n";
    	    } else {
    		print "   <paramdef>" . $type;
    		print " <parameter>$parameter</parameter></paramdef>\n";
    	    }
    	}
        } else {
    	print "  <void/>\n";
        }
        print "  </funcprototype></funcsynopsis>\n";
        print "</refsynopsisdiv>\n";
    
        # print parameters
        print "<refsect1>\n <title>Arguments</title>\n";
        if ($#{$args{'parameterlist'}} >= 0) {
    	print " <variablelist>\n";
    	foreach $parameter (@{$args{'parameterlist'}}) {
    	    my $parameter_name = $parameter;
    	    $parameter_name =~ s/\[.*//;
    
    	    print "  <varlistentry>\n   <term><parameter>$parameter</parameter></term>\n";
    	    print "   <listitem>\n    <para>\n";
    	    $lineprefix="     ";
    	    output_highlight($args{'parameterdescs'}{$parameter_name});
    	    print "    </para>\n   </listitem>\n  </varlistentry>\n";
    	}
    	print " </variablelist>\n";
        } else {
    	print " <para>\n  None\n </para>\n";
        }
        print "</refsect1>\n";
    
        output_section_xml(@_);
        print "</refentry>\n\n";
    }
    
    # output struct in XML DocBook
    sub output_struct_xml(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $id;
    
        $id = "API-struct-" . $args{'struct'};
        $id =~ s/[^A-Za-z0-9]/-/g;
    
        print "<refentry id=\"$id\">\n";
        print "<refentryinfo>\n";
        print " <title>LINUX</title>\n";
        print " <productname>Kernel Hackers Manual</productname>\n";
        print " <date>$man_date</date>\n";
        print "</refentryinfo>\n";
        print "<refmeta>\n";
        print " <refentrytitle><phrase>" . $args{'type'} . " " . $args{'struct'} . "</phrase></refentrytitle>\n";
        print " <manvolnum>9</manvolnum>\n";
        print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
        print "</refmeta>\n";
        print "<refnamediv>\n";
        print " <refname>" . $args{'type'} . " " . $args{'struct'} . "</refname>\n";
        print " <refpurpose>\n";
        print "  ";
        output_highlight ($args{'purpose'});
        print " </refpurpose>\n";
        print "</refnamediv>\n";
    
        print "<refsynopsisdiv>\n";
        print " <title>Synopsis</title>\n";
        print "  <programlisting>\n";
        print $args{'type'} . " " . $args{'struct'} . " {\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	if ($parameter =~ /^#/) {
    	    my $prm = $parameter;
    	    # convert data read & converted thru xml_escape() into &xyz; format:
    	    # This allows us to have #define macros interspersed in a struct.
    	    $prm =~ s/\\\\\\/\&/g;
    	    print "$prm\n";
    	    next;
    	}
    
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	defined($args{'parameterdescs'}{$parameter_name}) || next;
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	$type = $args{'parametertypes'}{$parameter};
    	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    	    # pointer-to-function
    	    print "  $1 $parameter) ($2);\n";
    	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
    	    # bitfield
    	    print "  $1 $parameter$2;\n";
    	} else {
    	    print "  " . $type . " " . $parameter . ";\n";
    	}
        }
        print "};";
        print "  </programlisting>\n";
        print "</refsynopsisdiv>\n";
    
        print " <refsect1>\n";
        print "  <title>Members</title>\n";
    
        if ($#{$args{'parameterlist'}} >= 0) {
        print "  <variablelist>\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
          ($parameter =~ /^#/) && next;
    
          my $parameter_name = $parameter;
          $parameter_name =~ s/\[.*//;
    
          defined($args{'parameterdescs'}{$parameter_name}) || next;
          ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
          print "    <varlistentry>";
          print "      <term>$parameter</term>\n";
          print "      <listitem><para>\n";
          output_highlight($args{'parameterdescs'}{$parameter_name});
          print "      </para></listitem>\n";
          print "    </varlistentry>\n";
        }
        print "  </variablelist>\n";
        } else {
    	print " <para>\n  None\n </para>\n";
        }
        print " </refsect1>\n";
    
        output_section_xml(@_);
    
        print "</refentry>\n\n";
    }
    
    # output enum in XML DocBook
    sub output_enum_xml(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $count;
        my $id;
    
        $id = "API-enum-" . $args{'enum'};
        $id =~ s/[^A-Za-z0-9]/-/g;
    
        print "<refentry id=\"$id\">\n";
        print "<refentryinfo>\n";
        print " <title>LINUX</title>\n";
        print " <productname>Kernel Hackers Manual</productname>\n";
        print " <date>$man_date</date>\n";
        print "</refentryinfo>\n";
        print "<refmeta>\n";
        print " <refentrytitle><phrase>enum " . $args{'enum'} . "</phrase></refentrytitle>\n";
        print " <manvolnum>9</manvolnum>\n";
        print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
        print "</refmeta>\n";
        print "<refnamediv>\n";
        print " <refname>enum " . $args{'enum'} . "</refname>\n";
        print " <refpurpose>\n";
        print "  ";
        output_highlight ($args{'purpose'});
        print " </refpurpose>\n";
        print "</refnamediv>\n";
    
        print "<refsynopsisdiv>\n";
        print " <title>Synopsis</title>\n";
        print "  <programlisting>\n";
        print "enum " . $args{'enum'} . " {\n";
        $count = 0;
        foreach $parameter (@{$args{'parameterlist'}}) {
    	print "  $parameter";
    	if ($count != $#{$args{'parameterlist'}}) {
    	    $count++;
    	    print ",";
    	}
    	print "\n";
        }
        print "};";
        print "  </programlisting>\n";
        print "</refsynopsisdiv>\n";
    
        print "<refsect1>\n";
        print " <title>Constants</title>\n";
        print "  <variablelist>\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
          my $parameter_name = $parameter;
          $parameter_name =~ s/\[.*//;
    
          print "    <varlistentry>";
          print "      <term>$parameter</term>\n";
          print "      <listitem><para>\n";
          output_highlight($args{'parameterdescs'}{$parameter_name});
          print "      </para></listitem>\n";
          print "    </varlistentry>\n";
        }
        print "  </variablelist>\n";
        print "</refsect1>\n";
    
        output_section_xml(@_);
    
        print "</refentry>\n\n";
    }
    
    # output typedef in XML DocBook
    sub output_typedef_xml(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $id;
    
        $id = "API-typedef-" . $args{'typedef'};
        $id =~ s/[^A-Za-z0-9]/-/g;
    
        print "<refentry id=\"$id\">\n";
        print "<refentryinfo>\n";
        print " <title>LINUX</title>\n";
        print " <productname>Kernel Hackers Manual</productname>\n";
        print " <date>$man_date</date>\n";
        print "</refentryinfo>\n";
        print "<refmeta>\n";
        print " <refentrytitle><phrase>typedef " . $args{'typedef'} . "</phrase></refentrytitle>\n";
        print " <manvolnum>9</manvolnum>\n";
        print "</refmeta>\n";
        print "<refnamediv>\n";
        print " <refname>typedef " . $args{'typedef'} . "</refname>\n";
        print " <refpurpose>\n";
        print "  ";
        output_highlight ($args{'purpose'});
        print " </refpurpose>\n";
        print "</refnamediv>\n";
    
        print "<refsynopsisdiv>\n";
        print " <title>Synopsis</title>\n";
        print "  <synopsis>typedef " . $args{'typedef'} . ";</synopsis>\n";
        print "</refsynopsisdiv>\n";
    
        output_section_xml(@_);
    
        print "</refentry>\n\n";
    }
    
    # output in XML DocBook
    sub output_blockhead_xml(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $count;
    
        my $id = $args{'module'};
        $id =~ s/[^A-Za-z0-9]/-/g;
    
        # print out each section
        $lineprefix="   ";
        foreach $section (@{$args{'sectionlist'}}) {
    	if (!$args{'content-only'}) {
    		print "<refsect1>\n <title>$section</title>\n";
    	}
    	if ($section =~ m/EXAMPLE/i) {
    	    print "<example><para>\n";
    	    $output_preformatted = 1;
    	} else {
    	    print "<para>\n";
    	}
    	output_highlight($args{'sections'}{$section});
    	$output_preformatted = 0;
    	if ($section =~ m/EXAMPLE/i) {
    	    print "</para></example>\n";
    	} else {
    	    print "</para>";
    	}
    	if (!$args{'content-only'}) {
    		print "\n</refsect1>\n";
    	}
        }
    
        print "\n\n";
    }
    
    # output in XML DocBook
    sub output_function_gnome {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $count;
        my $id;
    
        $id = $args{'module'} . "-" . $args{'function'};
        $id =~ s/[^A-Za-z0-9]/-/g;
    
        print "<sect2>\n";
        print " <title id=\"$id\">" . $args{'function'} . "</title>\n";
    
        print "  <funcsynopsis>\n";
        print "   <funcdef>" . $args{'functiontype'} . " ";
        print "<function>" . $args{'function'} . " ";
        print "</function></funcdef>\n";
    
        $count = 0;
        if ($#{$args{'parameterlist'}} >= 0) {
    	foreach $parameter (@{$args{'parameterlist'}}) {
    	    $type = $args{'parametertypes'}{$parameter};
    	    if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    		# pointer-to-function
    		print "   <paramdef>$1 <parameter>$parameter</parameter>)\n";
    		print "     <funcparams>$2</funcparams></paramdef>\n";
    	    } else {
    		print "   <paramdef>" . $type;
    		print " <parameter>$parameter</parameter></paramdef>\n";
    	    }
    	}
        } else {
    	print "  <void>\n";
        }
        print "  </funcsynopsis>\n";
        if ($#{$args{'parameterlist'}} >= 0) {
    	print " <informaltable pgwide=\"1\" frame=\"none\" role=\"params\">\n";
    	print "<tgroup cols=\"2\">\n";
    	print "<colspec colwidth=\"2*\">\n";
    	print "<colspec colwidth=\"8*\">\n";
    	print "<tbody>\n";
    	foreach $parameter (@{$args{'parameterlist'}}) {
    	    my $parameter_name = $parameter;
    	    $parameter_name =~ s/\[.*//;
    
    	    print "  <row><entry align=\"right\"><parameter>$parameter</parameter></entry>\n";
    	    print "   <entry>\n";
    	    $lineprefix="     ";
    	    output_highlight($args{'parameterdescs'}{$parameter_name});
    	    print "    </entry></row>\n";
    	}
    	print " </tbody></tgroup></informaltable>\n";
        } else {
    	print " <para>\n  None\n </para>\n";
        }
    
        # print out each section
        $lineprefix="   ";
        foreach $section (@{$args{'sectionlist'}}) {
    	print "<simplesect>\n <title>$section</title>\n";
    	if ($section =~ m/EXAMPLE/i) {
    	    print "<example><programlisting>\n";
    	    $output_preformatted = 1;
    	} else {
    	}
    	print "<para>\n";
    	output_highlight($args{'sections'}{$section});
    	$output_preformatted = 0;
    	print "</para>\n";
    	if ($section =~ m/EXAMPLE/i) {
    	    print "</programlisting></example>\n";
    	} else {
    	}
    	print " </simplesect>\n";
        }
    
        print "</sect2>\n\n";
    }
    
    ##
    # output function in man
    sub output_function_man(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $count;
    
        print ".TH \"$args{'function'}\" 9 \"$args{'function'}\" \"$man_date\" \"Kernel Hacker's Manual\" LINUX\n";
    
        print ".SH NAME\n";
        print $args{'function'} . " \\- " . $args{'purpose'} . "\n";
    
        print ".SH SYNOPSIS\n";
        if ($args{'functiontype'} ne "") {
    	print ".B \"" . $args{'functiontype'} . "\" " . $args{'function'} . "\n";
        } else {
    	print ".B \"" . $args{'function'} . "\n";
        }
        $count = 0;
        my $parenth = "(";
        my $post = ",";
        foreach my $parameter (@{$args{'parameterlist'}}) {
    	if ($count == $#{$args{'parameterlist'}}) {
    	    $post = ");";
    	}
    	$type = $args{'parametertypes'}{$parameter};
    	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    	    # pointer-to-function
    	    print ".BI \"" . $parenth . $1 . "\" " . $parameter . " \") (" . $2 . ")" . $post . "\"\n";
    	} else {
    	    $type =~ s/([^\*])$/$1 /;
    	    print ".BI \"" . $parenth . $type . "\" " . $parameter . " \"" . $post . "\"\n";
    	}
    	$count++;
    	$parenth = "";
        }
    
        print ".SH ARGUMENTS\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	print ".IP \"" . $parameter . "\" 12\n";
    	output_highlight($args{'parameterdescs'}{$parameter_name});
        }
        foreach $section (@{$args{'sectionlist'}}) {
    	print ".SH \"", uc $section, "\"\n";
    	output_highlight($args{'sections'}{$section});
        }
    }
    
    ##
    # output enum in man
    sub output_enum_man(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $count;
    
        print ".TH \"$args{'module'}\" 9 \"enum $args{'enum'}\" \"$man_date\" \"API Manual\" LINUX\n";
    
        print ".SH NAME\n";
        print "enum " . $args{'enum'} . " \\- " . $args{'purpose'} . "\n";
    
        print ".SH SYNOPSIS\n";
        print "enum " . $args{'enum'} . " {\n";
        $count = 0;
        foreach my $parameter (@{$args{'parameterlist'}}) {
    	print ".br\n.BI \"    $parameter\"\n";
    	if ($count == $#{$args{'parameterlist'}}) {
    	    print "\n};\n";
    	    last;
    	}
    	else {
    	    print ", \n.br\n";
    	}
    	$count++;
        }
    
        print ".SH Constants\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	print ".IP \"" . $parameter . "\" 12\n";
    	output_highlight($args{'parameterdescs'}{$parameter_name});
        }
        foreach $section (@{$args{'sectionlist'}}) {
    	print ".SH \"$section\"\n";
    	output_highlight($args{'sections'}{$section});
        }
    }
    
    ##
    # output struct in man
    sub output_struct_man(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
    
        print ".TH \"$args{'module'}\" 9 \"" . $args{'type'} . " " . $args{'struct'} . "\" \"$man_date\" \"API Manual\" LINUX\n";
    
        print ".SH NAME\n";
        print $args{'type'} . " " . $args{'struct'} . " \\- " . $args{'purpose'} . "\n";
    
        print ".SH SYNOPSIS\n";
        print $args{'type'} . " " . $args{'struct'} . " {\n.br\n";
    
        foreach my $parameter (@{$args{'parameterlist'}}) {
    	if ($parameter =~ /^#/) {
    	    print ".BI \"$parameter\"\n.br\n";
    	    next;
    	}
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	$type = $args{'parametertypes'}{$parameter};
    	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    	    # pointer-to-function
    	    print ".BI \"    " . $1 . "\" " . $parameter . " \") (" . $2 . ")" . "\"\n;\n";
    	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
    	    # bitfield
    	    print ".BI \"    " . $1 . "\ \" " . $parameter . $2 . " \"" . "\"\n;\n";
    	} else {
    	    $type =~ s/([^\*])$/$1 /;
    	    print ".BI \"    " . $type . "\" " . $parameter . " \"" . "\"\n;\n";
    	}
    	print "\n.br\n";
        }
        print "};\n.br\n";
    
        print ".SH Members\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	($parameter =~ /^#/) && next;
    
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	print ".IP \"" . $parameter . "\" 12\n";
    	output_highlight($args{'parameterdescs'}{$parameter_name});
        }
        foreach $section (@{$args{'sectionlist'}}) {
    	print ".SH \"$section\"\n";
    	output_highlight($args{'sections'}{$section});
        }
    }
    
    ##
    # output typedef in man
    sub output_typedef_man(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
    
        print ".TH \"$args{'module'}\" 9 \"$args{'typedef'}\" \"$man_date\" \"API Manual\" LINUX\n";
    
        print ".SH NAME\n";
        print "typedef " . $args{'typedef'} . " \\- " . $args{'purpose'} . "\n";
    
        foreach $section (@{$args{'sectionlist'}}) {
    	print ".SH \"$section\"\n";
    	output_highlight($args{'sections'}{$section});
        }
    }
    
    sub output_blockhead_man(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $count;
    
        print ".TH \"$args{'module'}\" 9 \"$args{'module'}\" \"$man_date\" \"API Manual\" LINUX\n";
    
        foreach $section (@{$args{'sectionlist'}}) {
    	print ".SH \"$section\"\n";
    	output_highlight($args{'sections'}{$section});
        }
    }
    
    ##
    # output in text
    sub output_function_text(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $start;
    
        print "Name:\n\n";
        print $args{'function'} . " - " . $args{'purpose'} . "\n";
    
        print "\nSynopsis:\n\n";
        if ($args{'functiontype'} ne "") {
    	$start = $args{'functiontype'} . " " . $args{'function'} . " (";
        } else {
    	$start = $args{'function'} . " (";
        }
        print $start;
    
        my $count = 0;
        foreach my $parameter (@{$args{'parameterlist'}}) {
    	$type = $args{'parametertypes'}{$parameter};
    	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    	    # pointer-to-function
    	    print $1 . $parameter . ") (" . $2;
    	} else {
    	    print $type . " " . $parameter;
    	}
    	if ($count != $#{$args{'parameterlist'}}) {
    	    $count++;
    	    print ",\n";
    	    print " " x length($start);
    	} else {
    	    print ");\n\n";
    	}
        }
    
        print "Arguments:\n\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	print $parameter . "\n\t" . $args{'parameterdescs'}{$parameter_name} . "\n";
        }
        output_section_text(@_);
    }
    
    #output sections in text
    sub output_section_text(%) {
        my %args = %{$_[0]};
        my $section;
    
        print "\n";
        foreach $section (@{$args{'sectionlist'}}) {
    	print "$section:\n\n";
    	output_highlight($args{'sections'}{$section});
        }
        print "\n\n";
    }
    
    # output enum in text
    sub output_enum_text(%) {
        my %args = %{$_[0]};
        my ($parameter);
        my $count;
        print "Enum:\n\n";
    
        print "enum " . $args{'enum'} . " - " . $args{'purpose'} . "\n\n";
        print "enum " . $args{'enum'} . " {\n";
        $count = 0;
        foreach $parameter (@{$args{'parameterlist'}}) {
    	print "\t$parameter";
    	if ($count != $#{$args{'parameterlist'}}) {
    	    $count++;
    	    print ",";
    	}
    	print "\n";
        }
        print "};\n\n";
    
        print "Constants:\n\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	print "$parameter\n\t";
    	print $args{'parameterdescs'}{$parameter} . "\n";
        }
    
        output_section_text(@_);
    }
    
    # output typedef in text
    sub output_typedef_text(%) {
        my %args = %{$_[0]};
        my ($parameter);
        my $count;
        print "Typedef:\n\n";
    
        print "typedef " . $args{'typedef'} . " - " . $args{'purpose'} . "\n";
        output_section_text(@_);
    }
    
    # output struct as text
    sub output_struct_text(%) {
        my %args = %{$_[0]};
        my ($parameter);
    
        print $args{'type'} . " " . $args{'struct'} . " - " . $args{'purpose'} . "\n\n";
        print $args{'type'} . " " . $args{'struct'} . " {\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	if ($parameter =~ /^#/) {
    	    print "$parameter\n";
    	    next;
    	}
    
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	$type = $args{'parametertypes'}{$parameter};
    	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    	    # pointer-to-function
    	    print "\t$1 $parameter) ($2);\n";
    	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
    	    # bitfield
    	    print "\t$1 $parameter$2;\n";
    	} else {
    	    print "\t" . $type . " " . $parameter . ";\n";
    	}
        }
        print "};\n\n";
    
        print "Members:\n\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	($parameter =~ /^#/) && next;
    
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	print "$parameter\n\t";
    	print $args{'parameterdescs'}{$parameter_name} . "\n";
        }
        print "\n";
        output_section_text(@_);
    }
    
    sub output_blockhead_text(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
    
        foreach $section (@{$args{'sectionlist'}}) {
    	print " $section:\n";
    	print "    -> ";
    	output_highlight($args{'sections'}{$section});
        }
    }
    
    ##
    # output in restructured text
    #
    
    #
    # This could use some work; it's used to output the DOC: sections, and
    # starts by putting out the name of the doc section itself, but that tends
    # to duplicate a header already in the template file.
    #
    sub output_blockhead_rst(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
    
        foreach $section (@{$args{'sectionlist'}}) {
    	if ($output_selection != OUTPUT_INCLUDE) {
    	    print "**$section**\n\n";
    	}
    	output_highlight_rst($args{'sections'}{$section});
    	print "\n";
        }
    }
    
    sub output_highlight_rst {
        my $contents = join "\n",@_;
        my $line;
    
        # undo the evil effects of xml_escape() earlier
        $contents = xml_unescape($contents);
    
        eval $dohighlight;
        die $@ if $@;
    
        foreach $line (split "\n", $contents) {
    	if ($line eq "") {
    	    print $lineprefix, $blankline;
    	} else {
    	    print $lineprefix, $line;
    	}
    	print "\n";
        }
    }
    
    sub output_function_rst(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
        my $start;
    
        print ".. c:function:: ";
        if ($args{'functiontype'} ne "") {
    	$start = $args{'functiontype'} . " " . $args{'function'} . " (";
        } else {
    	$start = $args{'function'} . " (";
        }
        print $start;
    
        my $count = 0;
        foreach my $parameter (@{$args{'parameterlist'}}) {
    	if ($count ne 0) {
    	    print ", ";
    	}
    	$count++;
    	$type = $args{'parametertypes'}{$parameter};
    	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    	    # pointer-to-function
    	    print $1 . $parameter . ") (" . $2;
    	} else {
    	    print $type . " " . $parameter;
    	}
        }
        print ")\n\n    " . $args{'purpose'} . "\n\n";
    
        print ":Parameters:\n\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	my $parameter_name = $parameter;
    	#$parameter_name =~ s/\[.*//;
    	$type = $args{'parametertypes'}{$parameter};
    
    	if ($type ne "") {
    	    print "      ``$type $parameter``\n";
    	} else {
    	    print "      ``$parameter``\n";
    	}
    	if (defined($args{'parameterdescs'}{$parameter_name}) &&
    	    $args{'parameterdescs'}{$parameter_name} ne $undescribed) {
    	    my $oldprefix = $lineprefix;
    	    $lineprefix = "        ";
    	    output_highlight_rst($args{'parameterdescs'}{$parameter_name});
    	    $lineprefix = $oldprefix;
    	} else {
    	    print "\n        _undescribed_\n";
    	}
    	print "\n";
        }
        output_section_rst(@_);
    }
    
    sub output_section_rst(%) {
        my %args = %{$_[0]};
        my $section;
        my $oldprefix = $lineprefix;
        $lineprefix = "        ";
    
        foreach $section (@{$args{'sectionlist'}}) {
    	print ":$section:\n\n";
    	output_highlight_rst($args{'sections'}{$section});
    	print "\n";
        }
        print "\n";
        $lineprefix = $oldprefix;
    }
    
    sub output_enum_rst(%) {
        my %args = %{$_[0]};
        my ($parameter);
        my $count;
        my $name = "enum " . $args{'enum'};
    
        print "\n\n.. c:type:: " . $name . "\n\n";
        print "    " . $args{'purpose'} . "\n\n";
    
        print "..\n\n:Constants:\n\n";
        my $oldprefix = $lineprefix;
        $lineprefix = "    ";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	print "  `$parameter`\n";
    	if ($args{'parameterdescs'}{$parameter} ne $undescribed) {
    	    output_highlight_rst($args{'parameterdescs'}{$parameter});
    	} else {
    	    print "    undescribed\n";
    	}
    	print "\n";
        }
        $lineprefix = $oldprefix;
        output_section_rst(@_);
    }
    
    sub output_typedef_rst(%) {
        my %args = %{$_[0]};
        my ($parameter);
        my $count;
        my $name = "typedef " . $args{'typedef'};
    
        ### FIXME: should the name below contain "typedef" or not?
        print "\n\n.. c:type:: " . $name . "\n\n";
        print "    " . $args{'purpose'} . "\n\n";
    
        output_section_rst(@_);
    }
    
    sub output_struct_rst(%) {
        my %args = %{$_[0]};
        my ($parameter);
        my $name = $args{'type'} . " " . $args{'struct'};
    
        print "\n\n.. c:type:: " . $name . "\n\n";
        print "    " . $args{'purpose'} . "\n\n";
    
        print ":Definition:\n\n";
        print " ::\n\n";
        print "  " . $args{'type'} . " " . $args{'struct'} . " {\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	if ($parameter =~ /^#/) {
    	    print "    " . "$parameter\n";
    	    next;
    	}
    
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	$type = $args{'parametertypes'}{$parameter};
    	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
    	    # pointer-to-function
    	    print "    $1 $parameter) ($2);\n";
    	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
    	    # bitfield
    	    print "    $1 $parameter$2;\n";
    	} else {
    	    print "    " . $type . " " . $parameter . ";\n";
    	}
        }
        print "  };\n\n";
    
        print ":Members:\n\n";
        foreach $parameter (@{$args{'parameterlist'}}) {
    	($parameter =~ /^#/) && next;
    
    	my $parameter_name = $parameter;
    	$parameter_name =~ s/\[.*//;
    
    	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
    	$type = $args{'parametertypes'}{$parameter};
    	print "      `$type $parameter`" . "\n";
    	my $oldprefix = $lineprefix;
    	$lineprefix = "        ";
    	output_highlight_rst($args{'parameterdescs'}{$parameter_name});
    	$lineprefix = $oldprefix;
    	print "\n";
        }
        print "\n";
        output_section_rst(@_);
    }
    
    
    ## list mode output functions
    
    sub output_function_list(%) {
        my %args = %{$_[0]};
    
        print $args{'function'} . "\n";
    }
    
    # output enum in list
    sub output_enum_list(%) {
        my %args = %{$_[0]};
        print $args{'enum'} . "\n";
    }
    
    # output typedef in list
    sub output_typedef_list(%) {
        my %args = %{$_[0]};
        print $args{'typedef'} . "\n";
    }
    
    # output struct as list
    sub output_struct_list(%) {
        my %args = %{$_[0]};
    
        print $args{'struct'} . "\n";
    }
    
    sub output_blockhead_list(%) {
        my %args = %{$_[0]};
        my ($parameter, $section);
    
        foreach $section (@{$args{'sectionlist'}}) {
    	print "DOC: $section\n";
        }
    }
    
    ##
    # generic output function for all types (function, struct/union, typedef, enum);
    # calls the generated, variable output_ function name based on
    # functype and output_mode
    sub output_declaration {
        no strict 'refs';
        my $name = shift;
        my $functype = shift;
        my $func = "output_${functype}_$output_mode";
        if (($output_selection == OUTPUT_ALL) ||
    	(($output_selection == OUTPUT_INCLUDE ||
    	  $output_selection == OUTPUT_EXPORTED) &&
    	 defined($function_table{$name})) ||
    	(($output_selection == OUTPUT_EXCLUDE ||
    	  $output_selection == OUTPUT_INTERNAL) &&
    	 !($functype eq "function" && defined($function_table{$name}))))
        {
    	&$func(@_);
    	$section_counter++;
        }
    }
    
    ##
    # generic output function - calls the right one based on current output mode.
    sub output_blockhead {
        no strict 'refs';
        my $func = "output_blockhead_" . $output_mode;
        &$func(@_);
        $section_counter++;
    }
    
    ##
    # takes a declaration (struct, union, enum, typedef) and
    # invokes the right handler. NOT called for functions.
    sub dump_declaration($$) {
        no strict 'refs';
        my ($prototype, $file) = @_;
        my $func = "dump_" . $decl_type;
        &$func(@_);
    }
    
    sub dump_union($$) {
        dump_struct(@_);
    }
    
    sub dump_struct($$) {
        my $x = shift;
        my $file = shift;
        my $nested;
    
        if ($x =~ /(struct|union)\s+(\w+)\s*{(.*)}/) {
    	#my $decl_type = $1;
    	$declaration_name = $2;
    	my $members = $3;
    
    	# ignore embedded structs or unions
    	$members =~ s/({.*})//g;
    	$nested = $1;
    
    	# ignore members marked private:
    	$members =~ s/\/\*\s*private:.*?\/\*\s*public:.*?\*\///gosi;
    	$members =~ s/\/\*\s*private:.*//gosi;
    	# strip comments:
    	$members =~ s/\/\*.*?\*\///gos;
    	$nested =~ s/\/\*.*?\*\///gos;
    	# strip kmemcheck_bitfield_{begin,end}.*;
    	$members =~ s/kmemcheck_bitfield_.*?;//gos;
    	# strip attributes
    	$members =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
    	$members =~ s/__aligned\s*\([^;]*\)//gos;
    	$members =~ s/\s*CRYPTO_MINALIGN_ATTR//gos;
    	# replace DECLARE_BITMAP
    	$members =~ s/DECLARE_BITMAP\s*\(([^,)]+), ([^,)]+)\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
    
    	create_parameterlist($members, ';', $file);
    	check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested);
    
    	output_declaration($declaration_name,
    			   'struct',
    			   {'struct' => $declaration_name,
    			    'module' => $modulename,
    			    'parameterlist' => \@parameterlist,
    			    'parameterdescs' => \%parameterdescs,
    			    'parametertypes' => \%parametertypes,
    			    'sectionlist' => \@sectionlist,
    			    'sections' => \%sections,
    			    'purpose' => $declaration_purpose,
    			    'type' => $decl_type
    			   });
        }
        else {
    	print STDERR "${file}:$.: error: Cannot parse struct or union!\n";
    	++$errors;
        }
    }
    
    sub dump_enum($$) {
        my $x = shift;
        my $file = shift;
    
        $x =~ s@/\*.*?\*/@@gos;	# strip comments.
        # strip #define macros inside enums
        $x =~ s@#\s*((define|ifdef)\s+|endif)[^;]*;@@gos;
    
        if ($x =~ /enum\s+(\w+)\s*{(.*)}/) {
    	$declaration_name = $1;
    	my $members = $2;
    
    	foreach my $arg (split ',', $members) {
    	    $arg =~ s/^\s*(\w+).*/$1/;
    	    push @parameterlist, $arg;
    	    if (!$parameterdescs{$arg}) {
    		$parameterdescs{$arg} = $undescribed;
    		print STDERR "${file}:$.: warning: Enum value '$arg' ".
    		    "not described in enum '$declaration_name'\n";
    	    }
    
    	}
    
    	output_declaration($declaration_name,
    			   'enum',
    			   {'enum' => $declaration_name,
    			    'module' => $modulename,
    			    'parameterlist' => \@parameterlist,
    			    'parameterdescs' => \%parameterdescs,
    			    'sectionlist' => \@sectionlist,
    			    'sections' => \%sections,
    			    'purpose' => $declaration_purpose
    			   });
        }
        else {
    	print STDERR "${file}:$.: error: Cannot parse enum!\n";
    	++$errors;
        }
    }
    
    sub dump_typedef($$) {
        my $x = shift;
        my $file = shift;
    
        $x =~ s@/\*.*?\*/@@gos;	# strip comments.
    
        # Parse function prototypes
        if ($x =~ /typedef\s+(\w+)\s*\(\*\s*(\w\S+)\s*\)\s*\((.*)\);/) {
    	# Function typedefs
    	$return_type = $1;
    	$declaration_name = $2;
    	my $args = $3;
    
    	create_parameterlist($args, ',', $file);
    
    	output_declaration($declaration_name,
    			   'function',
    			   {'function' => $declaration_name,
    			    'module' => $modulename,
    			    'functiontype' => $return_type,
    			    'parameterlist' => \@parameterlist,
    			    'parameterdescs' => \%parameterdescs,
    			    'parametertypes' => \%parametertypes,
    			    'sectionlist' => \@sectionlist,
    			    'sections' => \%sections,
    			    'purpose' => $declaration_purpose
    			   });
    	return;
        }
    
        while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
    	$x =~ s/\(*.\)\s*;$/;/;
    	$x =~ s/\[*.\]\s*;$/;/;
        }
    
        if ($x =~ /typedef.*\s+(\w+)\s*;/) {
    	$declaration_name = $1;
    
    	output_declaration($declaration_name,
    			   'typedef',
    			   {'typedef' => $declaration_name,
    			    'module' => $modulename,
    			    'sectionlist' => \@sectionlist,
    			    'sections' => \%sections,
    			    'purpose' => $declaration_purpose
    			   });
        }
        else {
    	print STDERR "${file}:$.: error: Cannot parse typedef!\n";
    	++$errors;
        }
    }
    
    sub save_struct_actual($) {
        my $actual = shift;
    
        # strip all spaces from the actual param so that it looks like one string item
        $actual =~ s/\s*//g;
        $struct_actual = $struct_actual . $actual . " ";
    }
    
    sub create_parameterlist($$$) {
        my $args = shift;
        my $splitter = shift;
        my $file = shift;
        my $type;
        my $param;
    
        # temporarily replace commas inside function pointer definition
        while ($args =~ /(\([^\),]+),/) {
    	$args =~ s/(\([^\),]+),/$1#/g;
        }
    
        foreach my $arg (split($splitter, $args)) {
    	# strip comments
    	$arg =~ s/\/\*.*\*\///;
    	# strip leading/trailing spaces
    	$arg =~ s/^\s*//;
    	$arg =~ s/\s*$//;
    	$arg =~ s/\s+/ /;
    
    	if ($arg =~ /^#/) {
    	    # Treat preprocessor directive as a typeless variable just to fill
    	    # corresponding data structures "correctly". Catch it later in
    	    # output_* subs.
    	    push_parameter($arg, "", $file);
    	} elsif ($arg =~ m/\(.+\)\s*\(/) {
    	    # pointer-to-function
    	    $arg =~ tr/#/,/;
    	    $arg =~ m/[^\(]+\(\*?\s*(\w*)\s*\)/;
    	    $param = $1;
    	    $type = $arg;
    	    $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
    	    save_struct_actual($param);
    	    push_parameter($param, $type, $file);
    	} elsif ($arg) {
    	    $arg =~ s/\s*:\s*/:/g;
    	    $arg =~ s/\s*\[/\[/g;
    
    	    my @args = split('\s*,\s*', $arg);
    	    if ($args[0] =~ m/\*/) {
    		$args[0] =~ s/(\*+)\s*/ $1/;
    	    }
    
    	    my @first_arg;
    	    if ($args[0] =~ /^(.*\s+)(.*?\[.*\].*)$/) {
    		    shift @args;
    		    push(@first_arg, split('\s+', $1));
    		    push(@first_arg, $2);
    	    } else {
    		    @first_arg = split('\s+', shift @args);
    	    }
    
    	    unshift(@args, pop @first_arg);
    	    $type = join " ", @first_arg;
    
    	    foreach $param (@args) {
    		if ($param =~ m/^(\*+)\s*(.*)/) {
    		    save_struct_actual($2);
    		    push_parameter($2, "$type $1", $file);
    		}
    		elsif ($param =~ m/(.*?):(\d+)/) {
    		    if ($type ne "") { # skip unnamed bit-fields
    			save_struct_actual($1);
    			push_parameter($1, "$type:$2", $file)
    		    }
    		}
    		else {
    		    save_struct_actual($param);
    		    push_parameter($param, $type, $file);
    		}
    	    }
    	}
        }
    }
    
    sub push_parameter($$$) {
    	my $param = shift;
    	my $type = shift;
    	my $file = shift;
    
    	if (($anon_struct_union == 1) && ($type eq "") &&
    	    ($param eq "}")) {
    		return;		# ignore the ending }; from anon. struct/union
    	}
    
    	$anon_struct_union = 0;
    	my $param_name = $param;
    	$param_name =~ s/\[.*//;
    
    	if ($type eq "" && $param =~ /\.\.\.$/)
    	{
    	    if (!defined $parameterdescs{$param} || $parameterdescs{$param} eq "") {
    		$parameterdescs{$param} = "variable arguments";
    	    }
    	}
    	elsif ($type eq "" && ($param eq "" or $param eq "void"))
    	{
    	    $param="void";
    	    $parameterdescs{void} = "no arguments";
    	}
    	elsif ($type eq "" && ($param eq "struct" or $param eq "union"))
    	# handle unnamed (anonymous) union or struct:
    	{
    		$type = $param;
    		$param = "{unnamed_" . $param . "}";
    		$parameterdescs{$param} = "anonymous\n";
    		$anon_struct_union = 1;
    	}
    
    	# warn if parameter has no description
    	# (but ignore ones starting with # as these are not parameters
    	# but inline preprocessor statements);
    	# also ignore unnamed structs/unions;
    	if (!$anon_struct_union) {
    	if (!defined $parameterdescs{$param_name} && $param_name !~ /^#/) {
    
    	    $parameterdescs{$param_name} = $undescribed;
    
    	    if (($type eq 'function') || ($type eq 'enum')) {
    		print STDERR "${file}:$.: warning: Function parameter ".
    		    "or member '$param' not " .
    		    "described in '$declaration_name'\n";
    	    }
    	    print STDERR "${file}:$.: warning:" .
    			 " No description found for parameter '$param'\n";
    	    ++$warnings;
    	}
    	}
    
    	$param = xml_escape($param);
    
    	# strip spaces from $param so that it is one continuous string
    	# on @parameterlist;
    	# this fixes a problem where check_sections() cannot find
    	# a parameter like "addr[6 + 2]" because it actually appears
    	# as "addr[6", "+", "2]" on the parameter list;
    	# but it's better to maintain the param string unchanged for output,
    	# so just weaken the string compare in check_sections() to ignore
    	# "[blah" in a parameter string;
    	###$param =~ s/\s*//g;
    	push @parameterlist, $param;
    	$parametertypes{$param} = $type;
    }
    
    sub check_sections($$$$$$) {
    	my ($file, $decl_name, $decl_type, $sectcheck, $prmscheck, $nested) = @_;
    	my @sects = split ' ', $sectcheck;
    	my @prms = split ' ', $prmscheck;
    	my $err;
    	my ($px, $sx);
    	my $prm_clean;		# strip trailing "[array size]" and/or beginning "*"
    
    	foreach $sx (0 .. $#sects) {
    		$err = 1;
    		foreach $px (0 .. $#prms) {
    			$prm_clean = $prms[$px];
    			$prm_clean =~ s/\[.*\]//;
    			$prm_clean =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
    			# ignore array size in a parameter string;
    			# however, the original param string may contain
    			# spaces, e.g.:  addr[6 + 2]
    			# and this appears in @prms as "addr[6" since the
    			# parameter list is split at spaces;
    			# hence just ignore "[..." for the sections check;
    			$prm_clean =~ s/\[.*//;
    
    			##$prm_clean =~ s/^\**//;
    			if ($prm_clean eq $sects[$sx]) {
    				$err = 0;
    				last;
    			}
    		}
    		if ($err) {
    			if ($decl_type eq "function") {
    				print STDERR "${file}:$.: warning: " .
    					"Excess function parameter " .
    					"'$sects[$sx]' " .
    					"description in '$decl_name'\n";
    				++$warnings;
    			} else {
    				if ($nested !~ m/\Q$sects[$sx]\E/) {
    				    print STDERR "${file}:$.: warning: " .
    					"Excess struct/union/enum/typedef member " .
    					"'$sects[$sx]' " .
    					"description in '$decl_name'\n";
    				    ++$warnings;
    				}
    			}
    		}
    	}
    }
    
    ##
    # Checks the section describing the return value of a function.
    sub check_return_section {
            my $file = shift;
            my $declaration_name = shift;
            my $return_type = shift;
    
            # Ignore an empty return type (It's a macro)
            # Ignore functions with a "void" return type. (But don't ignore "void *")
            if (($return_type eq "") || ($return_type =~ /void\s*\w*\s*$/)) {
                    return;
            }
    
            if (!defined($sections{$section_return}) ||
                $sections{$section_return} eq "") {
                    print STDERR "${file}:$.: warning: " .
                            "No description found for return value of " .
                            "'$declaration_name'\n";
                    ++$warnings;
            }
    }
    
    ##
    # takes a function prototype and the name of the current file being
    # processed and spits out all the details stored in the global
    # arrays/hashes.
    sub dump_function($$) {
        my $prototype = shift;
        my $file = shift;
        my $noret = 0;
    
        $prototype =~ s/^static +//;
        $prototype =~ s/^extern +//;
        $prototype =~ s/^asmlinkage +//;
        $prototype =~ s/^inline +//;
        $prototype =~ s/^__inline__ +//;
        $prototype =~ s/^__inline +//;
        $prototype =~ s/^__always_inline +//;
        $prototype =~ s/^noinline +//;
        $prototype =~ s/__init +//;
        $prototype =~ s/__init_or_module +//;
        $prototype =~ s/__meminit +//;
        $prototype =~ s/__must_check +//;
        $prototype =~ s/__weak +//;
        my $define = $prototype =~ s/^#\s*define\s+//; #ak added
        $prototype =~ s/__attribute__\s*\(\([a-z,]*\)\)//;
    
        # Yes, this truly is vile.  We are looking for:
        # 1. Return type (may be nothing if we're looking at a macro)
        # 2. Function name
        # 3. Function parameters.
        #
        # All the while we have to watch out for function pointer parameters
        # (which IIRC is what the two sections are for), C types (these
        # regexps don't even start to express all the possibilities), and
        # so on.
        #
        # If you mess with these regexps, it's a good idea to check that
        # the following functions' documentation still comes out right:
        # - parport_register_device (function pointer parameters)
        # - atomic_set (macro)
        # - pci_match_device, __copy_to_user (long return type)
    
        if ($define && $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s+/) {
            # This is an object-like macro, it has no return type and no parameter
            # list.
            # Function-like macros are not allowed to have spaces between
            # declaration_name and opening parenthesis (notice the \s+).
            $return_type = $1;
            $declaration_name = $2;
            $noret = 1;
        } elsif ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
    	$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
    	$prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
    	$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
    	$prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
    	$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
    	$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
    	$prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
    	$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
    	$prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
    	$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
    	$prototype =~ m/^(\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
    	$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
    	$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
    	$prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
    	$prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
    	$prototype =~ m/^(\w+\s+\w+\s*\*\s*\w+\s*\*\s*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/)  {
    	$return_type = $1;
    	$declaration_name = $2;
    	my $args = $3;
    
    	create_parameterlist($args, ',', $file);
        } else {
    	print STDERR "${file}:$.: warning: cannot understand function prototype: '$prototype'\n";
    	return;
        }
    
    	my $prms = join " ", @parameterlist;
    	check_sections($file, $declaration_name, "function", $sectcheck, $prms, "");
    
            # This check emits a lot of warnings at the moment, because many
            # functions don't have a 'Return' doc section. So until the number
            # of warnings goes sufficiently down, the check is only performed in
            # verbose mode.
            # TODO: always perform the check.
            if ($verbose && !$noret) {
                    check_return_section($file, $declaration_name, $return_type);
            }
    
        output_declaration($declaration_name,
    		       'function',
    		       {'function' => $declaration_name,
    			'module' => $modulename,
    			'functiontype' => $return_type,
    			'parameterlist' => \@parameterlist,
    			'parameterdescs' => \%parameterdescs,
    			'parametertypes' => \%parametertypes,
    			'sectionlist' => \@sectionlist,
    			'sections' => \%sections,
    			'purpose' => $declaration_purpose
    		       });
    }
    
    sub reset_state {
        $function = "";
        %constants = ();
        %parameterdescs = ();
        %parametertypes = ();
        @parameterlist = ();
        %sections = ();
        @sectionlist = ();
        $sectcheck = "";
        $struct_actual = "";
        $prototype = "";
    
        $state = STATE_NORMAL;
        $inline_doc_state = STATE_INLINE_NA;
    }
    
    sub tracepoint_munge($) {
    	my $file = shift;
    	my $tracepointname = 0;
    	my $tracepointargs = 0;
    
    	if ($prototype =~ m/TRACE_EVENT\((.*?),/) {
    		$tracepointname = $1;
    	}
    	if ($prototype =~ m/DEFINE_SINGLE_EVENT\((.*?),/) {
    		$tracepointname = $1;
    	}
    	if ($prototype =~ m/DEFINE_EVENT\((.*?),(.*?),/) {
    		$tracepointname = $2;
    	}
    	$tracepointname =~ s/^\s+//; #strip leading whitespace
    	if ($prototype =~ m/TP_PROTO\((.*?)\)/) {
    		$tracepointargs = $1;
    	}
    	if (($tracepointname eq 0) || ($tracepointargs eq 0)) {
    		print STDERR "${file}:$.: warning: Unrecognized tracepoint format: \n".
    			     "$prototype\n";
    	} else {
    		$prototype = "static inline void trace_$tracepointname($tracepointargs)";
    	}
    }
    
    sub syscall_munge() {
    	my $void = 0;
    
    	$prototype =~ s@[\r\n\t]+@ @gos; # strip newlines/CR's/tabs
    ##	if ($prototype =~ m/SYSCALL_DEFINE0\s*\(\s*(a-zA-Z0-9_)*\s*\)/) {
    	if ($prototype =~ m/SYSCALL_DEFINE0/) {
    		$void = 1;
    ##		$prototype = "long sys_$1(void)";
    	}
    
    	$prototype =~ s/SYSCALL_DEFINE.*\(/long sys_/; # fix return type & func name
    	if ($prototype =~ m/long (sys_.*?),/) {
    		$prototype =~ s/,/\(/;
    	} elsif ($void) {
    		$prototype =~ s/\)/\(void\)/;
    	}
    
    	# now delete all of the odd-number commas in $prototype
    	# so that arg types & arg names don't have a comma between them
    	my $count = 0;
    	my $len = length($prototype);
    	if ($void) {
    		$len = 0;	# skip the for-loop
    	}
    	for (my $ix = 0; $ix < $len; $ix++) {
    		if (substr($prototype, $ix, 1) eq ',') {
    			$count++;
    			if ($count % 2 == 1) {
    				substr($prototype, $ix, 1) = ' ';
    			}
    		}
    	}
    }
    
    sub process_state3_function($$) {
        my $x = shift;
        my $file = shift;
    
        $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
    
        if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#\s*define/)) {
    	# do nothing
        }
        elsif ($x =~ /([^\{]*)/) {
    	$prototype .= $1;
        }
    
        if (($x =~ /\{/) || ($x =~ /\#\s*define/) || ($x =~ /;/)) {
    	$prototype =~ s@/\*.*?\*/@@gos;	# strip comments.
    	$prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
    	$prototype =~ s@^\s+@@gos; # strip leading spaces
    	if ($prototype =~ /SYSCALL_DEFINE/) {
    		syscall_munge();
    	}
    	if ($prototype =~ /TRACE_EVENT/ || $prototype =~ /DEFINE_EVENT/ ||
    	    $prototype =~ /DEFINE_SINGLE_EVENT/)
    	{
    		tracepoint_munge($file);
    	}
    	dump_function($prototype, $file);
    	reset_state();
        }
    }
    
    sub process_state3_type($$) {
        my $x = shift;
        my $file = shift;
    
        $x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
        $x =~ s@^\s+@@gos; # strip leading spaces
        $x =~ s@\s+$@@gos; # strip trailing spaces
        $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
    
        if ($x =~ /^#/) {
    	# To distinguish preprocessor directive from regular declaration later.
    	$x .= ";";
        }
    
        while (1) {
    	if ( $x =~ /([^{};]*)([{};])(.*)/ ) {
    	    $prototype .= $1 . $2;
    	    ($2 eq '{') && $brcount++;
    	    ($2 eq '}') && $brcount--;
    	    if (($2 eq ';') && ($brcount == 0)) {
    		dump_declaration($prototype, $file);
    		reset_state();
    		last;
    	    }
    	    $x = $3;
    	} else {
    	    $prototype .= $x;
    	    last;
    	}
        }
    }
    
    # xml_escape: replace <, >, and & in the text stream;
    #
    # however, formatting controls that are generated internally/locally in the
    # kernel-doc script are not escaped here; instead, they begin life like
    # $blankline_html (4 of '\' followed by a mnemonic + ':'), then these strings
    # are converted to their mnemonic-expected output, without the 4 * '\' & ':',
    # just before actual output; (this is done by local_unescape())
    sub xml_escape($) {
    	my $text = shift;
    	if (($output_mode eq "text") || ($output_mode eq "man")) {
    		return $text;
    	}
    	$text =~ s/\&/\\\\\\amp;/g;
    	$text =~ s/\</\\\\\\lt;/g;
    	$text =~ s/\>/\\\\\\gt;/g;
    	return $text;
    }
    
    # xml_unescape: reverse the effects of xml_escape
    sub xml_unescape($) {
    	my $text = shift;
    	if (($output_mode eq "text") || ($output_mode eq "man")) {
    		return $text;
    	}
    	$text =~ s/\\\\\\amp;/\&/g;
    	$text =~ s/\\\\\\lt;/</g;
    	$text =~ s/\\\\\\gt;/>/g;
    	return $text;
    }
    
    # convert local escape strings to html
    # local escape strings look like:  '\\\\menmonic:' (that's 4 backslashes)
    sub local_unescape($) {
    	my $text = shift;
    	if (($output_mode eq "text") || ($output_mode eq "man")) {
    		return $text;
    	}
    	$text =~ s/\\\\\\\\lt:/</g;
    	$text =~ s/\\\\\\\\gt:/>/g;
    	return $text;
    }
    
    sub process_file($) {
        my $file;
        my $identifier;
        my $func;
        my $descr;
        my $in_purpose = 0;
        my $initial_section_counter = $section_counter;
        my ($orig_file) = @_;
    
        if (defined($ENV{'SRCTREE'})) {
    	$file = "$ENV{'SRCTREE'}" . "/" . $orig_file;
        }
        else {
    	$file = $orig_file;
        }
        if (defined($source_map{$file})) {
    	$file = $source_map{$file};
        }
    
        if (!open(IN,"<$file")) {
    	print STDERR "Error: Cannot open file $file\n";
    	++$errors;
    	return;
        }
    
        # two passes for -export and -internal
        if ($output_selection == OUTPUT_EXPORTED ||
    	$output_selection == OUTPUT_INTERNAL) {
    	while (<IN>) {
    	    if (/$export_symbol/o) {
    		$function_table{$2} = 1;
    	    }
    	}
    	seek(IN, 0, 0);
        }
    
        $. = 1;
    
        $section_counter = 0;
        while (<IN>) {
    	while (s/\\\s*$//) {
    	    $_ .= <IN>;
    	}
    	if ($state == STATE_NORMAL) {
    	    if (/$doc_start/o) {
    		$state = STATE_NAME;	# next line is always the function name
    		$in_doc_sect = 0;
    	    }
    	} elsif ($state == STATE_NAME) {# this line is the function name (always)
    	    if (/$doc_block/o) {
    		$state = STATE_DOCBLOCK;
    		$contents = "";
    		if ( $1 eq "" ) {
    			$section = $section_intro;
    		} else {
    			$section = $1;
    		}
    	    }
    	    elsif (/$doc_decl/o) {
    		$identifier = $1;
    		if (/\s*([\w\s]+?)\s*-/) {
    		    $identifier = $1;
    		}
    
    		$state = STATE_FIELD;
    		if (/-(.*)/) {
    		    # strip leading/trailing/multiple spaces
    		    $descr= $1;
    		    $descr =~ s/^\s*//;
    		    $descr =~ s/\s*$//;
    		    $descr =~ s/\s+/ /g;
    		    $declaration_purpose = xml_escape($descr);
    		    $in_purpose = 1;
    		} else {
    		    $declaration_purpose = "";
    		}
    
    		if (($declaration_purpose eq "") && $verbose) {
    			print STDERR "${file}:$.: warning: missing initial short description on line:\n";
    			print STDERR $_;
    			++$warnings;
    		}
    
    		if ($identifier =~ m/^struct/) {
    		    $decl_type = 'struct';
    		} elsif ($identifier =~ m/^union/) {
    		    $decl_type = 'union';
    		} elsif ($identifier =~ m/^enum/) {
    		    $decl_type = 'enum';
    		} elsif ($identifier =~ m/^typedef/) {
    		    $decl_type = 'typedef';
    		} else {
    		    $decl_type = 'function';
    		}
    
    		if ($verbose) {
    		    print STDERR "${file}:$.: info: Scanning doc for $identifier\n";
    		}
    	    } else {
    		print STDERR "${file}:$.: warning: Cannot understand $_ on line $.",
    		" - I thought it was a doc line\n";
    		++$warnings;
    		$state = STATE_NORMAL;
    	    }
    	} elsif ($state == STATE_FIELD) {	# look for head: lines, and include content
    	    if (/$doc_sect/o) {
    		$newsection = $1;
    		$newcontents = $2;
    
    		if (($contents ne "") && ($contents ne "\n")) {
    		    if (!$in_doc_sect && $verbose) {
    			print STDERR "${file}:$.: warning: contents before sections\n";
    			++$warnings;
    		    }
    		    dump_section($file, $section, xml_escape($contents));
    		    $section = $section_default;
    		}
    
    		$in_doc_sect = 1;
    		$in_purpose = 0;
    		$contents = $newcontents;
    		if ($contents ne "") {
    		    while ((substr($contents, 0, 1) eq " ") ||
    			substr($contents, 0, 1) eq "\t") {
    			    $contents = substr($contents, 1);
    		    }
    		    $contents .= "\n";
    		}
    		$section = $newsection;
    	    } elsif (/$doc_end/) {
    		if (($contents ne "") && ($contents ne "\n")) {
    		    dump_section($file, $section, xml_escape($contents));
    		    $section = $section_default;
    		    $contents = "";
    		}
    		# look for doc_com + <text> + doc_end:
    		if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
    		    print STDERR "${file}:$.: warning: suspicious ending line: $_";
    		    ++$warnings;
    		}
    
    		$prototype = "";
    		$state = STATE_PROTO;
    		$brcount = 0;
    #		print STDERR "end of doc comment, looking for prototype\n";
    	    } elsif (/$doc_content/) {
    		# miguel-style comment kludge, look for blank lines after
    		# @parameter line to signify start of description
    		if ($1 eq "") {
    		    if ($section =~ m/^@/ || $section eq $section_context) {
    			dump_section($file, $section, xml_escape($contents));
    			$section = $section_default;
    			$contents = "";
    		    } else {
    			$contents .= "\n";
    		    }
    		    $in_purpose = 0;
    		} elsif ($in_purpose == 1) {
    		    # Continued declaration purpose
    		    chomp($declaration_purpose);
    		    $declaration_purpose .= " " . xml_escape($1);
    		    $declaration_purpose =~ s/\s+/ /g;
    		} else {
    		    $contents .= $1 . "\n";
    		}
    	    } else {
    		# i dont know - bad line?  ignore.
    		print STDERR "${file}:$.: warning: bad line: $_";
    		++$warnings;
    	    }
    	} elsif ($state == STATE_INLINE) { # scanning for inline parameters
    	    # First line (state 1) needs to be a @parameter
    	    if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
    		$section = $1;
    		$contents = $2;
    		if ($contents ne "") {
    		    while ((substr($contents, 0, 1) eq " ") ||
    		           substr($contents, 0, 1) eq "\t") {
    			$contents = substr($contents, 1);
    		    }
    		$contents .= "\n";
    		}
    		$inline_doc_state = STATE_INLINE_TEXT;
    	    # Documentation block end */
    	    } elsif (/$doc_inline_end/) {
    		if (($contents ne "") && ($contents ne "\n")) {
    		    dump_section($file, $section, xml_escape($contents));
    		    $section = $section_default;
    		    $contents = "";
    		}
    		$state = STATE_PROTO;
    		$inline_doc_state = STATE_INLINE_NA;
    	    # Regular text
    	    } elsif (/$doc_content/) {
    		if ($inline_doc_state == STATE_INLINE_TEXT) {
    		    $contents .= $1 . "\n";
    		} elsif ($inline_doc_state == STATE_INLINE_NAME) {
    		    $inline_doc_state = STATE_INLINE_ERROR;
    		    print STDERR "Warning(${file}:$.): ";
    		    print STDERR "Incorrect use of kernel-doc format: $_";
    		    ++$warnings;
    		}
    	    }
    	} elsif ($state == STATE_PROTO) {	# scanning for function '{' (end of prototype)
    	    if (/$doc_inline_start/) {
    		$state = STATE_INLINE;
    		$inline_doc_state = STATE_INLINE_NAME;
    	    } elsif ($decl_type eq 'function') {
    		process_state3_function($_, $file);
    	    } else {
    		process_state3_type($_, $file);
    	    }
    	} elsif ($state == STATE_DOCBLOCK) {
    		# Documentation block
    		if (/$doc_block/) {
    			dump_doc_section($file, $section, xml_escape($contents));
    			$contents = "";
    			$function = "";
    			%constants = ();
    			%parameterdescs = ();
    			%parametertypes = ();
    			@parameterlist = ();
    			%sections = ();
    			@sectionlist = ();
    			$prototype = "";
    			if ( $1 eq "" ) {
    				$section = $section_intro;
    			} else {
    				$section = $1;
    			}
    		}
    		elsif (/$doc_end/)
    		{
    			dump_doc_section($file, $section, xml_escape($contents));
    			$contents = "";
    			$function = "";
    			%constants = ();
    			%parameterdescs = ();
    			%parametertypes = ();
    			@parameterlist = ();
    			%sections = ();
    			@sectionlist = ();
    			$prototype = "";
    			$state = STATE_NORMAL;
    		}
    		elsif (/$doc_content/)
    		{
    			if ( $1 eq "" )
    			{
    				$contents .= $blankline;
    			}
    			else
    			{
    				$contents .= $1 . "\n";
    			}
    		}
    	}
        }
        if ($initial_section_counter == $section_counter) {
    	print STDERR "${file}:1: warning: no structured comments found\n";
    	if (($output_selection == OUTPUT_INCLUDE) && ($show_not_found == 1)) {
    	    print STDERR "    Was looking for '$_'.\n" for keys %function_table;
    	}
    	if ($output_mode eq "xml") {
    	    # The template wants at least one RefEntry here; make one.
    	    print "<refentry>\n";
    	    print " <refnamediv>\n";
    	    print "  <refname>\n";
    	    print "   ${orig_file}\n";
    	    print "  </refname>\n";
    	    print "  <refpurpose>\n";
    	    print "   Document generation inconsistency\n";
    	    print "  </refpurpose>\n";
    	    print " </refnamediv>\n";
    	    print " <refsect1>\n";
    	    print "  <title>\n";
    	    print "   Oops\n";
    	    print "  </title>\n";
    	    print "  <warning>\n";
    	    print "   <para>\n";
    	    print "    The template for this document tried to insert\n";
    	    print "    the structured comment from the file\n";
    	    print "    <filename>${orig_file}</filename> at this point,\n";
    	    print "    but none was found.\n";
    	    print "    This dummy section is inserted to allow\n";
    	    print "    generation to continue.\n";
    	    print "   </para>\n";
    	    print "  </warning>\n";
    	    print " </refsect1>\n";
    	    print "</refentry>\n";
    	}
        }
    }
    
    
    $kernelversion = get_kernel_version();
    
    # generate a sequence of code that will splice in highlighting information
    # using the s// operator.
    for (my $k = 0; $k < @highlights; $k++) {
        my $pattern = $highlights[$k][0];
        my $result = $highlights[$k][1];
    #   print STDERR "scanning pattern:$pattern, highlight:($result)\n";
        $dohighlight .=  "\$contents =~ s:$pattern:$result:gs;\n";
    }
    
    # Read the file that maps relative names to absolute names for
    # separate source and object directories and for shadow trees.
    if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
    	my ($relname, $absname);
    	while(<SOURCE_MAP>) {
    		chop();
    		($relname, $absname) = (split())[0..1];
    		$relname =~ s:^/+::;
    		$source_map{$relname} = $absname;
    	}
    	close(SOURCE_MAP);
    }
    
    foreach (@ARGV) {
        chomp;
        process_file($_);
    }
    if ($verbose && $errors) {
      print STDERR "$errors errors\n";
    }
    if ($verbose && $warnings) {
      print STDERR "$warnings warnings\n";
    }
    
    exit($errors);