xref: /linux/scripts/kernel-doc (revision 6450c8957ee3a8f58191c2ed6c5b71c7b7d1b310)
1#!/usr/bin/perl -w
2
3use strict;
4
5## Copyright (c) 1998 Michael Zucchi, All Rights Reserved        ##
6## Copyright (C) 2000, 1  Tim Waugh <twaugh@redhat.com>          ##
7## Copyright (C) 2001  Simon Huggins                             ##
8## Copyright (C) 2005-2012  Randy Dunlap                         ##
9## Copyright (C) 2012  Dan Luedtke                               ##
10## 								 ##
11## #define enhancements by Armin Kuster <akuster@mvista.com>	 ##
12## Copyright (c) 2000 MontaVista Software, Inc.			 ##
13## 								 ##
14## This software falls under the GNU General Public License.     ##
15## Please read the COPYING file for more information             ##
16
17# 18/01/2001 - 	Cleanups
18# 		Functions prototyped as foo(void) same as foo()
19# 		Stop eval'ing where we don't need to.
20# -- huggie@earth.li
21
22# 27/06/2001 -  Allowed whitespace after initial "/**" and
23#               allowed comments before function declarations.
24# -- Christian Kreibich <ck@whoop.org>
25
26# Still to do:
27# 	- add perldoc documentation
28# 	- Look more closely at some of the scarier bits :)
29
30# 26/05/2001 - 	Support for separate source and object trees.
31#		Return error code.
32# 		Keith Owens <kaos@ocs.com.au>
33
34# 23/09/2001 - Added support for typedefs, structs, enums and unions
35#              Support for Context section; can be terminated using empty line
36#              Small fixes (like spaces vs. \s in regex)
37# -- Tim Jansen <tim@tjansen.de>
38
39# 25/07/2012 - Added support for HTML5
40# -- Dan Luedtke <mail@danrl.de>
41
42sub usage {
43    my $message = <<"EOF";
44Usage: $0 [OPTION ...] FILE ...
45
46Read C language source or header FILEs, extract embedded documentation comments,
47and print formatted documentation to standard output.
48
49The documentation comments are identified by "/**" opening comment mark. See
50Documentation/kernel-doc-nano-HOWTO.txt for the documentation comment syntax.
51
52Output format selection (mutually exclusive):
53  -docbook		Output DocBook format.
54  -html			Output HTML format.
55  -html5		Output HTML5 format.
56  -list			Output symbol list format. This is for use by docproc.
57  -man			Output troff manual page format. This is the default.
58  -rst			Output reStructuredText format.
59  -text			Output plain text format.
60
61Output selection (mutually exclusive):
62  -export		Only output documentation for symbols that have been
63			exported using EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL()
64			in the same FILE.
65  -internal		Only output documentation for symbols that have NOT been
66			exported using EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL()
67			in the same FILE.
68  -function NAME	Only output documentation for the given function(s)
69			or DOC: section title(s). All other functions and DOC:
70			sections are ignored. May be specified multiple times.
71  -nofunction NAME	Do NOT output documentation for the given function(s);
72			only output documentation for the other functions and
73			DOC: sections. May be specified multiple times.
74
75Output selection modifiers:
76  -no-doc-sections	Do not output DOC: sections.
77
78Other parameters:
79  -v			Verbose output, more warnings and other information.
80  -h			Print this help.
81
82EOF
83    print $message;
84    exit 1;
85}
86
87#
88# format of comments.
89# In the following table, (...)? signifies optional structure.
90#                         (...)* signifies 0 or more structure elements
91# /**
92#  * function_name(:)? (- short description)?
93# (* @parameterx: (description of parameter x)?)*
94# (* a blank line)?
95#  * (Description:)? (Description of function)?
96#  * (section header: (section description)? )*
97#  (*)?*/
98#
99# So .. the trivial example would be:
100#
101# /**
102#  * my_function
103#  */
104#
105# If the Description: header tag is omitted, then there must be a blank line
106# after the last parameter specification.
107# e.g.
108# /**
109#  * my_function - does my stuff
110#  * @my_arg: its mine damnit
111#  *
112#  * Does my stuff explained.
113#  */
114#
115#  or, could also use:
116# /**
117#  * my_function - does my stuff
118#  * @my_arg: its mine damnit
119#  * Description: Does my stuff explained.
120#  */
121# etc.
122#
123# Besides functions you can also write documentation for structs, unions,
124# enums and typedefs. Instead of the function name you must write the name
125# of the declaration;  the struct/union/enum/typedef must always precede
126# the name. Nesting of declarations is not supported.
127# Use the argument mechanism to document members or constants.
128# e.g.
129# /**
130#  * struct my_struct - short description
131#  * @a: first member
132#  * @b: second member
133#  *
134#  * Longer description
135#  */
136# struct my_struct {
137#     int a;
138#     int b;
139# /* private: */
140#     int c;
141# };
142#
143# All descriptions can be multiline, except the short function description.
144#
145# For really longs structs, you can also describe arguments inside the
146# body of the struct.
147# eg.
148# /**
149#  * struct my_struct - short description
150#  * @a: first member
151#  * @b: second member
152#  *
153#  * Longer description
154#  */
155# struct my_struct {
156#     int a;
157#     int b;
158#     /**
159#      * @c: This is longer description of C
160#      *
161#      * You can use paragraphs to describe arguments
162#      * using this method.
163#      */
164#     int c;
165# };
166#
167# This should be use only for struct/enum members.
168#
169# You can also add additional sections. When documenting kernel functions you
170# should document the "Context:" of the function, e.g. whether the functions
171# can be called form interrupts. Unlike other sections you can end it with an
172# empty line.
173# A non-void function should have a "Return:" section describing the return
174# value(s).
175# Example-sections should contain the string EXAMPLE so that they are marked
176# appropriately in DocBook.
177#
178# Example:
179# /**
180#  * user_function - function that can only be called in user context
181#  * @a: some argument
182#  * Context: !in_interrupt()
183#  *
184#  * Some description
185#  * Example:
186#  *    user_function(22);
187#  */
188# ...
189#
190#
191# All descriptive text is further processed, scanning for the following special
192# patterns, which are highlighted appropriately.
193#
194# 'funcname()' - function
195# '$ENVVAR' - environmental variable
196# '&struct_name' - name of a structure (up to two words including 'struct')
197# '@parameter' - name of a parameter
198# '%CONST' - name of a constant.
199
200## init lots of data
201
202my $errors = 0;
203my $warnings = 0;
204my $anon_struct_union = 0;
205
206# match expressions used to find embedded type information
207my $type_constant = '\%([-_\w]+)';
208my $type_func = '(\w+)\(\)';
209my $type_param = '\@(\w+)';
210my $type_struct = '\&((struct\s*)*[_\w]+)';
211my $type_struct_xml = '\\&amp;((struct\s*)*[_\w]+)';
212my $type_env = '(\$\w+)';
213my $type_enum_full = '\&(enum)\s*([_\w]+)';
214my $type_struct_full = '\&(struct)\s*([_\w]+)';
215my $type_typedef_full = '\&(typedef)\s*([_\w]+)';
216my $type_union_full = '\&(union)\s*([_\w]+)';
217my $type_member = '\&([_\w]+)((\.|->)[_\w]+)';
218my $type_member_func = $type_member . '\(\)';
219
220# Output conversion substitutions.
221#  One for each output format
222
223# these work fairly well
224my @highlights_html = (
225                       [$type_constant, "<i>\$1</i>"],
226                       [$type_func, "<b>\$1</b>"],
227                       [$type_struct_xml, "<i>\$1</i>"],
228                       [$type_env, "<b><i>\$1</i></b>"],
229                       [$type_param, "<tt><b>\$1</b></tt>"]
230                      );
231my $local_lt = "\\\\\\\\lt:";
232my $local_gt = "\\\\\\\\gt:";
233my $blankline_html = $local_lt . "p" . $local_gt;	# was "<p>"
234
235# html version 5
236my @highlights_html5 = (
237                        [$type_constant, "<span class=\"const\">\$1</span>"],
238                        [$type_func, "<span class=\"func\">\$1</span>"],
239                        [$type_struct_xml, "<span class=\"struct\">\$1</span>"],
240                        [$type_env, "<span class=\"env\">\$1</span>"],
241                        [$type_param, "<span class=\"param\">\$1</span>]"]
242		       );
243my $blankline_html5 = $local_lt . "br /" . $local_gt;
244
245# XML, docbook format
246my @highlights_xml = (
247                      ["([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>"],
248                      [$type_constant, "<constant>\$1</constant>"],
249                      [$type_struct_xml, "<structname>\$1</structname>"],
250                      [$type_param, "<parameter>\$1</parameter>"],
251                      [$type_func, "<function>\$1</function>"],
252                      [$type_env, "<envar>\$1</envar>"]
253		     );
254my $blankline_xml = $local_lt . "/para" . $local_gt . $local_lt . "para" . $local_gt . "\n";
255
256# gnome, docbook format
257my @highlights_gnome = (
258                        [$type_constant, "<replaceable class=\"option\">\$1</replaceable>"],
259                        [$type_func, "<function>\$1</function>"],
260                        [$type_struct, "<structname>\$1</structname>"],
261                        [$type_env, "<envar>\$1</envar>"],
262                        [$type_param, "<parameter>\$1</parameter>" ]
263		       );
264my $blankline_gnome = "</para><para>\n";
265
266# these are pretty rough
267my @highlights_man = (
268                      [$type_constant, "\$1"],
269                      [$type_func, "\\\\fB\$1\\\\fP"],
270                      [$type_struct, "\\\\fI\$1\\\\fP"],
271                      [$type_param, "\\\\fI\$1\\\\fP"]
272		     );
273my $blankline_man = "";
274
275# text-mode
276my @highlights_text = (
277                       [$type_constant, "\$1"],
278                       [$type_func, "\$1"],
279                       [$type_struct, "\$1"],
280                       [$type_param, "\$1"]
281		      );
282my $blankline_text = "";
283
284# rst-mode
285my @highlights_rst = (
286                       [$type_constant, "``\$1``"],
287                       # Note: need to escape () to avoid func matching later
288                       [$type_member_func, "\\:c\\:type\\:`\$1\$2\\\\(\\\\) <\$1>`"],
289                       [$type_member, "\\:c\\:type\\:`\$1\$2 <\$1>`"],
290                       [$type_func, "\\:c\\:func\\:`\$1()`"],
291                       [$type_struct_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
292                       [$type_enum_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
293                       [$type_typedef_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
294                       [$type_union_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
295                       # in rst this can refer to any type
296                       [$type_struct, "\\:c\\:type\\:`\$1`"],
297                       [$type_param, "**\$1**"]
298		      );
299my $blankline_rst = "\n";
300
301# list mode
302my @highlights_list = (
303                       [$type_constant, "\$1"],
304                       [$type_func, "\$1"],
305                       [$type_struct, "\$1"],
306                       [$type_param, "\$1"]
307		      );
308my $blankline_list = "";
309
310# read arguments
311if ($#ARGV == -1) {
312    usage();
313}
314
315my $kernelversion;
316my $dohighlight = "";
317
318my $verbose = 0;
319my $output_mode = "man";
320my $output_preformatted = 0;
321my $no_doc_sections = 0;
322my @highlights = @highlights_man;
323my $blankline = $blankline_man;
324my $modulename = "Kernel API";
325
326use constant {
327    OUTPUT_ALL          => 0, # output all symbols and doc sections
328    OUTPUT_INCLUDE      => 1, # output only specified symbols
329    OUTPUT_EXCLUDE      => 2, # output everything except specified symbols
330    OUTPUT_EXPORTED     => 3, # output exported symbols
331    OUTPUT_INTERNAL     => 4, # output non-exported symbols
332};
333my $output_selection = OUTPUT_ALL;
334my $show_not_found = 0;
335
336my @build_time;
337if (defined($ENV{'KBUILD_BUILD_TIMESTAMP'}) &&
338    (my $seconds = `date -d"${ENV{'KBUILD_BUILD_TIMESTAMP'}}" +%s`) ne '') {
339    @build_time = gmtime($seconds);
340} else {
341    @build_time = localtime;
342}
343
344my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
345		'July', 'August', 'September', 'October',
346		'November', 'December')[$build_time[4]] .
347  " " . ($build_time[5]+1900);
348
349# Essentially these are globals.
350# They probably want to be tidied up, made more localised or something.
351# CAVEAT EMPTOR!  Some of the others I localised may not want to be, which
352# could cause "use of undefined value" or other bugs.
353my ($function, %function_table, %parametertypes, $declaration_purpose);
354my ($type, $declaration_name, $return_type);
355my ($newsection, $newcontents, $prototype, $brcount, %source_map);
356
357if (defined($ENV{'KBUILD_VERBOSE'})) {
358	$verbose = "$ENV{'KBUILD_VERBOSE'}";
359}
360
361# Generated docbook code is inserted in a template at a point where
362# docbook v3.1 requires a non-zero sequence of RefEntry's; see:
363# http://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
364# We keep track of number of generated entries and generate a dummy
365# if needs be to ensure the expanded template can be postprocessed
366# into html.
367my $section_counter = 0;
368
369my $lineprefix="";
370
371# Parser states
372use constant {
373    STATE_NORMAL        => 0, # normal code
374    STATE_NAME          => 1, # looking for function name
375    STATE_FIELD         => 2, # scanning field start
376    STATE_PROTO         => 3, # scanning prototype
377    STATE_DOCBLOCK      => 4, # documentation block
378    STATE_INLINE        => 5, # gathering documentation outside main block
379};
380my $state;
381my $in_doc_sect;
382
383# Inline documentation state
384use constant {
385    STATE_INLINE_NA     => 0, # not applicable ($state != STATE_INLINE)
386    STATE_INLINE_NAME   => 1, # looking for member name (@foo:)
387    STATE_INLINE_TEXT   => 2, # looking for member documentation
388    STATE_INLINE_END    => 3, # done
389    STATE_INLINE_ERROR  => 4, # error - Comment without header was found.
390                              # Spit a warning as it's not
391                              # proper kernel-doc and ignore the rest.
392};
393my $inline_doc_state;
394
395#declaration types: can be
396# 'function', 'struct', 'union', 'enum', 'typedef'
397my $decl_type;
398
399my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
400my $doc_end = '\*/';
401my $doc_com = '\s*\*\s*';
402my $doc_com_body = '\s*\* ?';
403my $doc_decl = $doc_com . '(\w+)';
404my $doc_sect = $doc_com . '(\@?[\w\s]+):(.*)';
405my $doc_content = $doc_com_body . '(.*)';
406my $doc_block = $doc_com . 'DOC:\s*(.*)?';
407my $doc_inline_start = '^\s*/\*\*\s*$';
408my $doc_inline_sect = '\s*\*\s*(@[\w\s]+):(.*)';
409my $doc_inline_end = '^\s*\*/\s*$';
410my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
411
412my %parameterdescs;
413my @parameterlist;
414my %sections;
415my @sectionlist;
416my $sectcheck;
417my $struct_actual;
418
419my $contents = "";
420my $section_default = "Description";	# default section
421my $section_intro = "Introduction";
422my $section = $section_default;
423my $section_context = "Context";
424my $section_return = "Return";
425
426my $undescribed = "-- undescribed --";
427
428reset_state();
429
430while ($ARGV[0] =~ m/^-(.*)/) {
431    my $cmd = shift @ARGV;
432    if ($cmd eq "-html") {
433	$output_mode = "html";
434	@highlights = @highlights_html;
435	$blankline = $blankline_html;
436    } elsif ($cmd eq "-html5") {
437	$output_mode = "html5";
438	@highlights = @highlights_html5;
439	$blankline = $blankline_html5;
440    } elsif ($cmd eq "-man") {
441	$output_mode = "man";
442	@highlights = @highlights_man;
443	$blankline = $blankline_man;
444    } elsif ($cmd eq "-text") {
445	$output_mode = "text";
446	@highlights = @highlights_text;
447	$blankline = $blankline_text;
448    } elsif ($cmd eq "-rst") {
449	$output_mode = "rst";
450	@highlights = @highlights_rst;
451	$blankline = $blankline_rst;
452    } elsif ($cmd eq "-docbook") {
453	$output_mode = "xml";
454	@highlights = @highlights_xml;
455	$blankline = $blankline_xml;
456    } elsif ($cmd eq "-list") {
457	$output_mode = "list";
458	@highlights = @highlights_list;
459	$blankline = $blankline_list;
460    } elsif ($cmd eq "-gnome") {
461	$output_mode = "gnome";
462	@highlights = @highlights_gnome;
463	$blankline = $blankline_gnome;
464    } elsif ($cmd eq "-module") { # not needed for XML, inherits from calling document
465	$modulename = shift @ARGV;
466    } elsif ($cmd eq "-function") { # to only output specific functions
467	$output_selection = OUTPUT_INCLUDE;
468	$function = shift @ARGV;
469	$function_table{$function} = 1;
470    } elsif ($cmd eq "-nofunction") { # output all except specific functions
471	$output_selection = OUTPUT_EXCLUDE;
472	$function = shift @ARGV;
473	$function_table{$function} = 1;
474    } elsif ($cmd eq "-export") { # only exported symbols
475	$output_selection = OUTPUT_EXPORTED;
476	%function_table = ()
477    } elsif ($cmd eq "-internal") { # only non-exported symbols
478	$output_selection = OUTPUT_INTERNAL;
479	%function_table = ()
480    } elsif ($cmd eq "-v") {
481	$verbose = 1;
482    } elsif (($cmd eq "-h") || ($cmd eq "--help")) {
483	usage();
484    } elsif ($cmd eq '-no-doc-sections') {
485	    $no_doc_sections = 1;
486    } elsif ($cmd eq '-show-not-found') {
487	$show_not_found = 1;
488    }
489}
490
491# continue execution near EOF;
492
493# get kernel version from env
494sub get_kernel_version() {
495    my $version = 'unknown kernel version';
496
497    if (defined($ENV{'KERNELVERSION'})) {
498	$version = $ENV{'KERNELVERSION'};
499    }
500    return $version;
501}
502
503##
504# dumps section contents to arrays/hashes intended for that purpose.
505#
506sub dump_section {
507    my $file = shift;
508    my $name = shift;
509    my $contents = join "\n", @_;
510
511    if ($name =~ m/$type_param/) {
512#	print STDERR "parameter def '$1' = '$contents'\n";
513	$name = $1;
514	$parameterdescs{$name} = $contents;
515	$sectcheck = $sectcheck . $name . " ";
516    } elsif ($name eq "@\.\.\.") {
517#	print STDERR "parameter def '...' = '$contents'\n";
518	$name = "...";
519	$parameterdescs{$name} = $contents;
520	$sectcheck = $sectcheck . $name . " ";
521    } else {
522#	print STDERR "other section '$name' = '$contents'\n";
523	if (defined($sections{$name}) && ($sections{$name} ne "")) {
524		print STDERR "${file}:$.: error: duplicate section name '$name'\n";
525		++$errors;
526	}
527	$sections{$name} = $contents;
528	push @sectionlist, $name;
529    }
530}
531
532##
533# dump DOC: section after checking that it should go out
534#
535sub dump_doc_section {
536    my $file = shift;
537    my $name = shift;
538    my $contents = join "\n", @_;
539
540    if ($no_doc_sections) {
541        return;
542    }
543
544    if (($output_selection == OUTPUT_ALL) ||
545	($output_selection == OUTPUT_INCLUDE &&
546	 defined($function_table{$name})) ||
547	($output_selection == OUTPUT_EXCLUDE &&
548	 !defined($function_table{$name})))
549    {
550	dump_section($file, $name, $contents);
551	output_blockhead({'sectionlist' => \@sectionlist,
552			  'sections' => \%sections,
553			  'module' => $modulename,
554			  'content-only' => ($output_selection != OUTPUT_ALL), });
555    }
556}
557
558##
559# output function
560#
561# parameterdescs, a hash.
562#  function => "function name"
563#  parameterlist => @list of parameters
564#  parameterdescs => %parameter descriptions
565#  sectionlist => @list of sections
566#  sections => %section descriptions
567#
568
569sub output_highlight {
570    my $contents = join "\n",@_;
571    my $line;
572
573#   DEBUG
574#   if (!defined $contents) {
575#	use Carp;
576#	confess "output_highlight got called with no args?\n";
577#   }
578
579    if ($output_mode eq "html" || $output_mode eq "html5" ||
580	$output_mode eq "xml") {
581	$contents = local_unescape($contents);
582	# convert data read & converted thru xml_escape() into &xyz; format:
583	$contents =~ s/\\\\\\/\&/g;
584    }
585#   print STDERR "contents b4:$contents\n";
586    eval $dohighlight;
587    die $@ if $@;
588#   print STDERR "contents af:$contents\n";
589
590#   strip whitespaces when generating html5
591    if ($output_mode eq "html5") {
592	$contents =~ s/^\s+//;
593	$contents =~ s/\s+$//;
594    }
595    foreach $line (split "\n", $contents) {
596	if (! $output_preformatted) {
597	    $line =~ s/^\s*//;
598	}
599	if ($line eq ""){
600	    if (! $output_preformatted) {
601		print $lineprefix, local_unescape($blankline);
602	    }
603	} else {
604	    $line =~ s/\\\\\\/\&/g;
605	    if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
606		print "\\&$line";
607	    } else {
608		print $lineprefix, $line;
609	    }
610	}
611	print "\n";
612    }
613}
614
615# output sections in html
616sub output_section_html(%) {
617    my %args = %{$_[0]};
618    my $section;
619
620    foreach $section (@{$args{'sectionlist'}}) {
621	print "<h3>$section</h3>\n";
622	print "<blockquote>\n";
623	output_highlight($args{'sections'}{$section});
624	print "</blockquote>\n";
625    }
626}
627
628# output enum in html
629sub output_enum_html(%) {
630    my %args = %{$_[0]};
631    my ($parameter);
632    my $count;
633    print "<h2>enum " . $args{'enum'} . "</h2>\n";
634
635    print "<b>enum " . $args{'enum'} . "</b> {<br>\n";
636    $count = 0;
637    foreach $parameter (@{$args{'parameterlist'}}) {
638	print " <b>" . $parameter . "</b>";
639	if ($count != $#{$args{'parameterlist'}}) {
640	    $count++;
641	    print ",\n";
642	}
643	print "<br>";
644    }
645    print "};<br>\n";
646
647    print "<h3>Constants</h3>\n";
648    print "<dl>\n";
649    foreach $parameter (@{$args{'parameterlist'}}) {
650	print "<dt><b>" . $parameter . "</b>\n";
651	print "<dd>";
652	output_highlight($args{'parameterdescs'}{$parameter});
653    }
654    print "</dl>\n";
655    output_section_html(@_);
656    print "<hr>\n";
657}
658
659# output typedef in html
660sub output_typedef_html(%) {
661    my %args = %{$_[0]};
662    my ($parameter);
663    my $count;
664    print "<h2>typedef " . $args{'typedef'} . "</h2>\n";
665
666    print "<b>typedef " . $args{'typedef'} . "</b>\n";
667    output_section_html(@_);
668    print "<hr>\n";
669}
670
671# output struct in html
672sub output_struct_html(%) {
673    my %args = %{$_[0]};
674    my ($parameter);
675
676    print "<h2>" . $args{'type'} . " " . $args{'struct'} . " - " . $args{'purpose'} . "</h2>\n";
677    print "<b>" . $args{'type'} . " " . $args{'struct'} . "</b> {<br>\n";
678    foreach $parameter (@{$args{'parameterlist'}}) {
679	if ($parameter =~ /^#/) {
680		print "$parameter<br>\n";
681		next;
682	}
683	my $parameter_name = $parameter;
684	$parameter_name =~ s/\[.*//;
685
686	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
687	$type = $args{'parametertypes'}{$parameter};
688	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
689	    # pointer-to-function
690	    print "&nbsp; &nbsp; <i>$1</i><b>$parameter</b>) <i>($2)</i>;<br>\n";
691	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
692	    # bitfield
693	    print "&nbsp; &nbsp; <i>$1</i> <b>$parameter</b>$2;<br>\n";
694	} else {
695	    print "&nbsp; &nbsp; <i>$type</i> <b>$parameter</b>;<br>\n";
696	}
697    }
698    print "};<br>\n";
699
700    print "<h3>Members</h3>\n";
701    print "<dl>\n";
702    foreach $parameter (@{$args{'parameterlist'}}) {
703	($parameter =~ /^#/) && next;
704
705	my $parameter_name = $parameter;
706	$parameter_name =~ s/\[.*//;
707
708	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
709	print "<dt><b>" . $parameter . "</b>\n";
710	print "<dd>";
711	output_highlight($args{'parameterdescs'}{$parameter_name});
712    }
713    print "</dl>\n";
714    output_section_html(@_);
715    print "<hr>\n";
716}
717
718# output function in html
719sub output_function_html(%) {
720    my %args = %{$_[0]};
721    my ($parameter, $section);
722    my $count;
723
724    print "<h2>" . $args{'function'} . " - " . $args{'purpose'} . "</h2>\n";
725    print "<i>" . $args{'functiontype'} . "</i>\n";
726    print "<b>" . $args{'function'} . "</b>\n";
727    print "(";
728    $count = 0;
729    foreach $parameter (@{$args{'parameterlist'}}) {
730	$type = $args{'parametertypes'}{$parameter};
731	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
732	    # pointer-to-function
733	    print "<i>$1</i><b>$parameter</b>) <i>($2)</i>";
734	} else {
735	    print "<i>" . $type . "</i> <b>" . $parameter . "</b>";
736	}
737	if ($count != $#{$args{'parameterlist'}}) {
738	    $count++;
739	    print ",\n";
740	}
741    }
742    print ")\n";
743
744    print "<h3>Arguments</h3>\n";
745    print "<dl>\n";
746    foreach $parameter (@{$args{'parameterlist'}}) {
747	my $parameter_name = $parameter;
748	$parameter_name =~ s/\[.*//;
749
750	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
751	print "<dt><b>" . $parameter . "</b>\n";
752	print "<dd>";
753	output_highlight($args{'parameterdescs'}{$parameter_name});
754    }
755    print "</dl>\n";
756    output_section_html(@_);
757    print "<hr>\n";
758}
759
760# output DOC: block header in html
761sub output_blockhead_html(%) {
762    my %args = %{$_[0]};
763    my ($parameter, $section);
764    my $count;
765
766    foreach $section (@{$args{'sectionlist'}}) {
767	print "<h3>$section</h3>\n";
768	print "<ul>\n";
769	output_highlight($args{'sections'}{$section});
770	print "</ul>\n";
771    }
772    print "<hr>\n";
773}
774
775# output sections in html5
776sub output_section_html5(%) {
777    my %args = %{$_[0]};
778    my $section;
779
780    foreach $section (@{$args{'sectionlist'}}) {
781	print "<section>\n";
782	print "<h1>$section</h1>\n";
783	print "<p>\n";
784	output_highlight($args{'sections'}{$section});
785	print "</p>\n";
786	print "</section>\n";
787    }
788}
789
790# output enum in html5
791sub output_enum_html5(%) {
792    my %args = %{$_[0]};
793    my ($parameter);
794    my $count;
795    my $html5id;
796
797    $html5id = $args{'enum'};
798    $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
799    print "<article class=\"enum\" id=\"enum:". $html5id . "\">";
800    print "<h1>enum " . $args{'enum'} . "</h1>\n";
801    print "<ol class=\"code\">\n";
802    print "<li>";
803    print "<span class=\"keyword\">enum</span> ";
804    print "<span class=\"identifier\">" . $args{'enum'} . "</span> {";
805    print "</li>\n";
806    $count = 0;
807    foreach $parameter (@{$args{'parameterlist'}}) {
808	print "<li class=\"indent\">";
809	print "<span class=\"param\">" . $parameter . "</span>";
810	if ($count != $#{$args{'parameterlist'}}) {
811	    $count++;
812	    print ",";
813	}
814	print "</li>\n";
815    }
816    print "<li>};</li>\n";
817    print "</ol>\n";
818
819    print "<section>\n";
820    print "<h1>Constants</h1>\n";
821    print "<dl>\n";
822    foreach $parameter (@{$args{'parameterlist'}}) {
823	print "<dt>" . $parameter . "</dt>\n";
824	print "<dd>";
825	output_highlight($args{'parameterdescs'}{$parameter});
826	print "</dd>\n";
827    }
828    print "</dl>\n";
829    print "</section>\n";
830    output_section_html5(@_);
831    print "</article>\n";
832}
833
834# output typedef in html5
835sub output_typedef_html5(%) {
836    my %args = %{$_[0]};
837    my ($parameter);
838    my $count;
839    my $html5id;
840
841    $html5id = $args{'typedef'};
842    $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
843    print "<article class=\"typedef\" id=\"typedef:" . $html5id . "\">\n";
844    print "<h1>typedef " . $args{'typedef'} . "</h1>\n";
845
846    print "<ol class=\"code\">\n";
847    print "<li>";
848    print "<span class=\"keyword\">typedef</span> ";
849    print "<span class=\"identifier\">" . $args{'typedef'} . "</span>";
850    print "</li>\n";
851    print "</ol>\n";
852    output_section_html5(@_);
853    print "</article>\n";
854}
855
856# output struct in html5
857sub output_struct_html5(%) {
858    my %args = %{$_[0]};
859    my ($parameter);
860    my $html5id;
861
862    $html5id = $args{'struct'};
863    $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
864    print "<article class=\"struct\" id=\"struct:" . $html5id . "\">\n";
865    print "<hgroup>\n";
866    print "<h1>" . $args{'type'} . " " . $args{'struct'} . "</h1>";
867    print "<h2>". $args{'purpose'} . "</h2>\n";
868    print "</hgroup>\n";
869    print "<ol class=\"code\">\n";
870    print "<li>";
871    print "<span class=\"type\">" . $args{'type'} . "</span> ";
872    print "<span class=\"identifier\">" . $args{'struct'} . "</span> {";
873    print "</li>\n";
874    foreach $parameter (@{$args{'parameterlist'}}) {
875	print "<li class=\"indent\">";
876	if ($parameter =~ /^#/) {
877		print "<span class=\"param\">" . $parameter ."</span>\n";
878		print "</li>\n";
879		next;
880	}
881	my $parameter_name = $parameter;
882	$parameter_name =~ s/\[.*//;
883
884	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
885	$type = $args{'parametertypes'}{$parameter};
886	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
887	    # pointer-to-function
888	    print "<span class=\"type\">$1</span> ";
889	    print "<span class=\"param\">$parameter</span>";
890	    print "<span class=\"type\">)</span> ";
891	    print "(<span class=\"args\">$2</span>);";
892	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
893	    # bitfield
894	    print "<span class=\"type\">$1</span> ";
895	    print "<span class=\"param\">$parameter</span>";
896	    print "<span class=\"bits\">$2</span>;";
897	} else {
898	    print "<span class=\"type\">$type</span> ";
899	    print "<span class=\"param\">$parameter</span>;";
900	}
901	print "</li>\n";
902    }
903    print "<li>};</li>\n";
904    print "</ol>\n";
905
906    print "<section>\n";
907    print "<h1>Members</h1>\n";
908    print "<dl>\n";
909    foreach $parameter (@{$args{'parameterlist'}}) {
910	($parameter =~ /^#/) && next;
911
912	my $parameter_name = $parameter;
913	$parameter_name =~ s/\[.*//;
914
915	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
916	print "<dt>" . $parameter . "</dt>\n";
917	print "<dd>";
918	output_highlight($args{'parameterdescs'}{$parameter_name});
919	print "</dd>\n";
920    }
921    print "</dl>\n";
922    print "</section>\n";
923    output_section_html5(@_);
924    print "</article>\n";
925}
926
927# output function in html5
928sub output_function_html5(%) {
929    my %args = %{$_[0]};
930    my ($parameter, $section);
931    my $count;
932    my $html5id;
933
934    $html5id = $args{'function'};
935    $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
936    print "<article class=\"function\" id=\"func:". $html5id . "\">\n";
937    print "<hgroup>\n";
938    print "<h1>" . $args{'function'} . "</h1>";
939    print "<h2>" . $args{'purpose'} . "</h2>\n";
940    print "</hgroup>\n";
941    print "<ol class=\"code\">\n";
942    print "<li>";
943    print "<span class=\"type\">" . $args{'functiontype'} . "</span> ";
944    print "<span class=\"identifier\">" . $args{'function'} . "</span> (";
945    print "</li>";
946    $count = 0;
947    foreach $parameter (@{$args{'parameterlist'}}) {
948	print "<li class=\"indent\">";
949	$type = $args{'parametertypes'}{$parameter};
950	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
951	    # pointer-to-function
952	    print "<span class=\"type\">$1</span> ";
953	    print "<span class=\"param\">$parameter</span>";
954	    print "<span class=\"type\">)</span> ";
955	    print "(<span class=\"args\">$2</span>)";
956	} else {
957	    print "<span class=\"type\">$type</span> ";
958	    print "<span class=\"param\">$parameter</span>";
959	}
960	if ($count != $#{$args{'parameterlist'}}) {
961	    $count++;
962	    print ",";
963	}
964	print "</li>\n";
965    }
966    print "<li>)</li>\n";
967    print "</ol>\n";
968
969    print "<section>\n";
970    print "<h1>Arguments</h1>\n";
971    print "<p>\n";
972    print "<dl>\n";
973    foreach $parameter (@{$args{'parameterlist'}}) {
974	my $parameter_name = $parameter;
975	$parameter_name =~ s/\[.*//;
976
977	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
978	print "<dt>" . $parameter . "</dt>\n";
979	print "<dd>";
980	output_highlight($args{'parameterdescs'}{$parameter_name});
981	print "</dd>\n";
982    }
983    print "</dl>\n";
984    print "</section>\n";
985    output_section_html5(@_);
986    print "</article>\n";
987}
988
989# output DOC: block header in html5
990sub output_blockhead_html5(%) {
991    my %args = %{$_[0]};
992    my ($parameter, $section);
993    my $count;
994    my $html5id;
995
996    foreach $section (@{$args{'sectionlist'}}) {
997	$html5id = $section;
998	$html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
999	print "<article class=\"doc\" id=\"doc:". $html5id . "\">\n";
1000	print "<h1>$section</h1>\n";
1001	print "<p>\n";
1002	output_highlight($args{'sections'}{$section});
1003	print "</p>\n";
1004    }
1005    print "</article>\n";
1006}
1007
1008sub output_section_xml(%) {
1009    my %args = %{$_[0]};
1010    my $section;
1011    # print out each section
1012    $lineprefix="   ";
1013    foreach $section (@{$args{'sectionlist'}}) {
1014	print "<refsect1>\n";
1015	print "<title>$section</title>\n";
1016	if ($section =~ m/EXAMPLE/i) {
1017	    print "<informalexample><programlisting>\n";
1018	    $output_preformatted = 1;
1019	} else {
1020	    print "<para>\n";
1021	}
1022	output_highlight($args{'sections'}{$section});
1023	$output_preformatted = 0;
1024	if ($section =~ m/EXAMPLE/i) {
1025	    print "</programlisting></informalexample>\n";
1026	} else {
1027	    print "</para>\n";
1028	}
1029	print "</refsect1>\n";
1030    }
1031}
1032
1033# output function in XML DocBook
1034sub output_function_xml(%) {
1035    my %args = %{$_[0]};
1036    my ($parameter, $section);
1037    my $count;
1038    my $id;
1039
1040    $id = "API-" . $args{'function'};
1041    $id =~ s/[^A-Za-z0-9]/-/g;
1042
1043    print "<refentry id=\"$id\">\n";
1044    print "<refentryinfo>\n";
1045    print " <title>LINUX</title>\n";
1046    print " <productname>Kernel Hackers Manual</productname>\n";
1047    print " <date>$man_date</date>\n";
1048    print "</refentryinfo>\n";
1049    print "<refmeta>\n";
1050    print " <refentrytitle><phrase>" . $args{'function'} . "</phrase></refentrytitle>\n";
1051    print " <manvolnum>9</manvolnum>\n";
1052    print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
1053    print "</refmeta>\n";
1054    print "<refnamediv>\n";
1055    print " <refname>" . $args{'function'} . "</refname>\n";
1056    print " <refpurpose>\n";
1057    print "  ";
1058    output_highlight ($args{'purpose'});
1059    print " </refpurpose>\n";
1060    print "</refnamediv>\n";
1061
1062    print "<refsynopsisdiv>\n";
1063    print " <title>Synopsis</title>\n";
1064    print "  <funcsynopsis><funcprototype>\n";
1065    print "   <funcdef>" . $args{'functiontype'} . " ";
1066    print "<function>" . $args{'function'} . " </function></funcdef>\n";
1067
1068    $count = 0;
1069    if ($#{$args{'parameterlist'}} >= 0) {
1070	foreach $parameter (@{$args{'parameterlist'}}) {
1071	    $type = $args{'parametertypes'}{$parameter};
1072	    if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1073		# pointer-to-function
1074		print "   <paramdef>$1<parameter>$parameter</parameter>)\n";
1075		print "     <funcparams>$2</funcparams></paramdef>\n";
1076	    } else {
1077		print "   <paramdef>" . $type;
1078		print " <parameter>$parameter</parameter></paramdef>\n";
1079	    }
1080	}
1081    } else {
1082	print "  <void/>\n";
1083    }
1084    print "  </funcprototype></funcsynopsis>\n";
1085    print "</refsynopsisdiv>\n";
1086
1087    # print parameters
1088    print "<refsect1>\n <title>Arguments</title>\n";
1089    if ($#{$args{'parameterlist'}} >= 0) {
1090	print " <variablelist>\n";
1091	foreach $parameter (@{$args{'parameterlist'}}) {
1092	    my $parameter_name = $parameter;
1093	    $parameter_name =~ s/\[.*//;
1094
1095	    print "  <varlistentry>\n   <term><parameter>$parameter</parameter></term>\n";
1096	    print "   <listitem>\n    <para>\n";
1097	    $lineprefix="     ";
1098	    output_highlight($args{'parameterdescs'}{$parameter_name});
1099	    print "    </para>\n   </listitem>\n  </varlistentry>\n";
1100	}
1101	print " </variablelist>\n";
1102    } else {
1103	print " <para>\n  None\n </para>\n";
1104    }
1105    print "</refsect1>\n";
1106
1107    output_section_xml(@_);
1108    print "</refentry>\n\n";
1109}
1110
1111# output struct in XML DocBook
1112sub output_struct_xml(%) {
1113    my %args = %{$_[0]};
1114    my ($parameter, $section);
1115    my $id;
1116
1117    $id = "API-struct-" . $args{'struct'};
1118    $id =~ s/[^A-Za-z0-9]/-/g;
1119
1120    print "<refentry id=\"$id\">\n";
1121    print "<refentryinfo>\n";
1122    print " <title>LINUX</title>\n";
1123    print " <productname>Kernel Hackers Manual</productname>\n";
1124    print " <date>$man_date</date>\n";
1125    print "</refentryinfo>\n";
1126    print "<refmeta>\n";
1127    print " <refentrytitle><phrase>" . $args{'type'} . " " . $args{'struct'} . "</phrase></refentrytitle>\n";
1128    print " <manvolnum>9</manvolnum>\n";
1129    print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
1130    print "</refmeta>\n";
1131    print "<refnamediv>\n";
1132    print " <refname>" . $args{'type'} . " " . $args{'struct'} . "</refname>\n";
1133    print " <refpurpose>\n";
1134    print "  ";
1135    output_highlight ($args{'purpose'});
1136    print " </refpurpose>\n";
1137    print "</refnamediv>\n";
1138
1139    print "<refsynopsisdiv>\n";
1140    print " <title>Synopsis</title>\n";
1141    print "  <programlisting>\n";
1142    print $args{'type'} . " " . $args{'struct'} . " {\n";
1143    foreach $parameter (@{$args{'parameterlist'}}) {
1144	if ($parameter =~ /^#/) {
1145	    my $prm = $parameter;
1146	    # convert data read & converted thru xml_escape() into &xyz; format:
1147	    # This allows us to have #define macros interspersed in a struct.
1148	    $prm =~ s/\\\\\\/\&/g;
1149	    print "$prm\n";
1150	    next;
1151	}
1152
1153	my $parameter_name = $parameter;
1154	$parameter_name =~ s/\[.*//;
1155
1156	defined($args{'parameterdescs'}{$parameter_name}) || next;
1157	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1158	$type = $args{'parametertypes'}{$parameter};
1159	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1160	    # pointer-to-function
1161	    print "  $1 $parameter) ($2);\n";
1162	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1163	    # bitfield
1164	    print "  $1 $parameter$2;\n";
1165	} else {
1166	    print "  " . $type . " " . $parameter . ";\n";
1167	}
1168    }
1169    print "};";
1170    print "  </programlisting>\n";
1171    print "</refsynopsisdiv>\n";
1172
1173    print " <refsect1>\n";
1174    print "  <title>Members</title>\n";
1175
1176    if ($#{$args{'parameterlist'}} >= 0) {
1177    print "  <variablelist>\n";
1178    foreach $parameter (@{$args{'parameterlist'}}) {
1179      ($parameter =~ /^#/) && next;
1180
1181      my $parameter_name = $parameter;
1182      $parameter_name =~ s/\[.*//;
1183
1184      defined($args{'parameterdescs'}{$parameter_name}) || next;
1185      ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1186      print "    <varlistentry>";
1187      print "      <term>$parameter</term>\n";
1188      print "      <listitem><para>\n";
1189      output_highlight($args{'parameterdescs'}{$parameter_name});
1190      print "      </para></listitem>\n";
1191      print "    </varlistentry>\n";
1192    }
1193    print "  </variablelist>\n";
1194    } else {
1195	print " <para>\n  None\n </para>\n";
1196    }
1197    print " </refsect1>\n";
1198
1199    output_section_xml(@_);
1200
1201    print "</refentry>\n\n";
1202}
1203
1204# output enum in XML DocBook
1205sub output_enum_xml(%) {
1206    my %args = %{$_[0]};
1207    my ($parameter, $section);
1208    my $count;
1209    my $id;
1210
1211    $id = "API-enum-" . $args{'enum'};
1212    $id =~ s/[^A-Za-z0-9]/-/g;
1213
1214    print "<refentry id=\"$id\">\n";
1215    print "<refentryinfo>\n";
1216    print " <title>LINUX</title>\n";
1217    print " <productname>Kernel Hackers Manual</productname>\n";
1218    print " <date>$man_date</date>\n";
1219    print "</refentryinfo>\n";
1220    print "<refmeta>\n";
1221    print " <refentrytitle><phrase>enum " . $args{'enum'} . "</phrase></refentrytitle>\n";
1222    print " <manvolnum>9</manvolnum>\n";
1223    print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
1224    print "</refmeta>\n";
1225    print "<refnamediv>\n";
1226    print " <refname>enum " . $args{'enum'} . "</refname>\n";
1227    print " <refpurpose>\n";
1228    print "  ";
1229    output_highlight ($args{'purpose'});
1230    print " </refpurpose>\n";
1231    print "</refnamediv>\n";
1232
1233    print "<refsynopsisdiv>\n";
1234    print " <title>Synopsis</title>\n";
1235    print "  <programlisting>\n";
1236    print "enum " . $args{'enum'} . " {\n";
1237    $count = 0;
1238    foreach $parameter (@{$args{'parameterlist'}}) {
1239	print "  $parameter";
1240	if ($count != $#{$args{'parameterlist'}}) {
1241	    $count++;
1242	    print ",";
1243	}
1244	print "\n";
1245    }
1246    print "};";
1247    print "  </programlisting>\n";
1248    print "</refsynopsisdiv>\n";
1249
1250    print "<refsect1>\n";
1251    print " <title>Constants</title>\n";
1252    print "  <variablelist>\n";
1253    foreach $parameter (@{$args{'parameterlist'}}) {
1254      my $parameter_name = $parameter;
1255      $parameter_name =~ s/\[.*//;
1256
1257      print "    <varlistentry>";
1258      print "      <term>$parameter</term>\n";
1259      print "      <listitem><para>\n";
1260      output_highlight($args{'parameterdescs'}{$parameter_name});
1261      print "      </para></listitem>\n";
1262      print "    </varlistentry>\n";
1263    }
1264    print "  </variablelist>\n";
1265    print "</refsect1>\n";
1266
1267    output_section_xml(@_);
1268
1269    print "</refentry>\n\n";
1270}
1271
1272# output typedef in XML DocBook
1273sub output_typedef_xml(%) {
1274    my %args = %{$_[0]};
1275    my ($parameter, $section);
1276    my $id;
1277
1278    $id = "API-typedef-" . $args{'typedef'};
1279    $id =~ s/[^A-Za-z0-9]/-/g;
1280
1281    print "<refentry id=\"$id\">\n";
1282    print "<refentryinfo>\n";
1283    print " <title>LINUX</title>\n";
1284    print " <productname>Kernel Hackers Manual</productname>\n";
1285    print " <date>$man_date</date>\n";
1286    print "</refentryinfo>\n";
1287    print "<refmeta>\n";
1288    print " <refentrytitle><phrase>typedef " . $args{'typedef'} . "</phrase></refentrytitle>\n";
1289    print " <manvolnum>9</manvolnum>\n";
1290    print "</refmeta>\n";
1291    print "<refnamediv>\n";
1292    print " <refname>typedef " . $args{'typedef'} . "</refname>\n";
1293    print " <refpurpose>\n";
1294    print "  ";
1295    output_highlight ($args{'purpose'});
1296    print " </refpurpose>\n";
1297    print "</refnamediv>\n";
1298
1299    print "<refsynopsisdiv>\n";
1300    print " <title>Synopsis</title>\n";
1301    print "  <synopsis>typedef " . $args{'typedef'} . ";</synopsis>\n";
1302    print "</refsynopsisdiv>\n";
1303
1304    output_section_xml(@_);
1305
1306    print "</refentry>\n\n";
1307}
1308
1309# output in XML DocBook
1310sub output_blockhead_xml(%) {
1311    my %args = %{$_[0]};
1312    my ($parameter, $section);
1313    my $count;
1314
1315    my $id = $args{'module'};
1316    $id =~ s/[^A-Za-z0-9]/-/g;
1317
1318    # print out each section
1319    $lineprefix="   ";
1320    foreach $section (@{$args{'sectionlist'}}) {
1321	if (!$args{'content-only'}) {
1322		print "<refsect1>\n <title>$section</title>\n";
1323	}
1324	if ($section =~ m/EXAMPLE/i) {
1325	    print "<example><para>\n";
1326	    $output_preformatted = 1;
1327	} else {
1328	    print "<para>\n";
1329	}
1330	output_highlight($args{'sections'}{$section});
1331	$output_preformatted = 0;
1332	if ($section =~ m/EXAMPLE/i) {
1333	    print "</para></example>\n";
1334	} else {
1335	    print "</para>";
1336	}
1337	if (!$args{'content-only'}) {
1338		print "\n</refsect1>\n";
1339	}
1340    }
1341
1342    print "\n\n";
1343}
1344
1345# output in XML DocBook
1346sub output_function_gnome {
1347    my %args = %{$_[0]};
1348    my ($parameter, $section);
1349    my $count;
1350    my $id;
1351
1352    $id = $args{'module'} . "-" . $args{'function'};
1353    $id =~ s/[^A-Za-z0-9]/-/g;
1354
1355    print "<sect2>\n";
1356    print " <title id=\"$id\">" . $args{'function'} . "</title>\n";
1357
1358    print "  <funcsynopsis>\n";
1359    print "   <funcdef>" . $args{'functiontype'} . " ";
1360    print "<function>" . $args{'function'} . " ";
1361    print "</function></funcdef>\n";
1362
1363    $count = 0;
1364    if ($#{$args{'parameterlist'}} >= 0) {
1365	foreach $parameter (@{$args{'parameterlist'}}) {
1366	    $type = $args{'parametertypes'}{$parameter};
1367	    if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1368		# pointer-to-function
1369		print "   <paramdef>$1 <parameter>$parameter</parameter>)\n";
1370		print "     <funcparams>$2</funcparams></paramdef>\n";
1371	    } else {
1372		print "   <paramdef>" . $type;
1373		print " <parameter>$parameter</parameter></paramdef>\n";
1374	    }
1375	}
1376    } else {
1377	print "  <void>\n";
1378    }
1379    print "  </funcsynopsis>\n";
1380    if ($#{$args{'parameterlist'}} >= 0) {
1381	print " <informaltable pgwide=\"1\" frame=\"none\" role=\"params\">\n";
1382	print "<tgroup cols=\"2\">\n";
1383	print "<colspec colwidth=\"2*\">\n";
1384	print "<colspec colwidth=\"8*\">\n";
1385	print "<tbody>\n";
1386	foreach $parameter (@{$args{'parameterlist'}}) {
1387	    my $parameter_name = $parameter;
1388	    $parameter_name =~ s/\[.*//;
1389
1390	    print "  <row><entry align=\"right\"><parameter>$parameter</parameter></entry>\n";
1391	    print "   <entry>\n";
1392	    $lineprefix="     ";
1393	    output_highlight($args{'parameterdescs'}{$parameter_name});
1394	    print "    </entry></row>\n";
1395	}
1396	print " </tbody></tgroup></informaltable>\n";
1397    } else {
1398	print " <para>\n  None\n </para>\n";
1399    }
1400
1401    # print out each section
1402    $lineprefix="   ";
1403    foreach $section (@{$args{'sectionlist'}}) {
1404	print "<simplesect>\n <title>$section</title>\n";
1405	if ($section =~ m/EXAMPLE/i) {
1406	    print "<example><programlisting>\n";
1407	    $output_preformatted = 1;
1408	} else {
1409	}
1410	print "<para>\n";
1411	output_highlight($args{'sections'}{$section});
1412	$output_preformatted = 0;
1413	print "</para>\n";
1414	if ($section =~ m/EXAMPLE/i) {
1415	    print "</programlisting></example>\n";
1416	} else {
1417	}
1418	print " </simplesect>\n";
1419    }
1420
1421    print "</sect2>\n\n";
1422}
1423
1424##
1425# output function in man
1426sub output_function_man(%) {
1427    my %args = %{$_[0]};
1428    my ($parameter, $section);
1429    my $count;
1430
1431    print ".TH \"$args{'function'}\" 9 \"$args{'function'}\" \"$man_date\" \"Kernel Hacker's Manual\" LINUX\n";
1432
1433    print ".SH NAME\n";
1434    print $args{'function'} . " \\- " . $args{'purpose'} . "\n";
1435
1436    print ".SH SYNOPSIS\n";
1437    if ($args{'functiontype'} ne "") {
1438	print ".B \"" . $args{'functiontype'} . "\" " . $args{'function'} . "\n";
1439    } else {
1440	print ".B \"" . $args{'function'} . "\n";
1441    }
1442    $count = 0;
1443    my $parenth = "(";
1444    my $post = ",";
1445    foreach my $parameter (@{$args{'parameterlist'}}) {
1446	if ($count == $#{$args{'parameterlist'}}) {
1447	    $post = ");";
1448	}
1449	$type = $args{'parametertypes'}{$parameter};
1450	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1451	    # pointer-to-function
1452	    print ".BI \"" . $parenth . $1 . "\" " . $parameter . " \") (" . $2 . ")" . $post . "\"\n";
1453	} else {
1454	    $type =~ s/([^\*])$/$1 /;
1455	    print ".BI \"" . $parenth . $type . "\" " . $parameter . " \"" . $post . "\"\n";
1456	}
1457	$count++;
1458	$parenth = "";
1459    }
1460
1461    print ".SH ARGUMENTS\n";
1462    foreach $parameter (@{$args{'parameterlist'}}) {
1463	my $parameter_name = $parameter;
1464	$parameter_name =~ s/\[.*//;
1465
1466	print ".IP \"" . $parameter . "\" 12\n";
1467	output_highlight($args{'parameterdescs'}{$parameter_name});
1468    }
1469    foreach $section (@{$args{'sectionlist'}}) {
1470	print ".SH \"", uc $section, "\"\n";
1471	output_highlight($args{'sections'}{$section});
1472    }
1473}
1474
1475##
1476# output enum in man
1477sub output_enum_man(%) {
1478    my %args = %{$_[0]};
1479    my ($parameter, $section);
1480    my $count;
1481
1482    print ".TH \"$args{'module'}\" 9 \"enum $args{'enum'}\" \"$man_date\" \"API Manual\" LINUX\n";
1483
1484    print ".SH NAME\n";
1485    print "enum " . $args{'enum'} . " \\- " . $args{'purpose'} . "\n";
1486
1487    print ".SH SYNOPSIS\n";
1488    print "enum " . $args{'enum'} . " {\n";
1489    $count = 0;
1490    foreach my $parameter (@{$args{'parameterlist'}}) {
1491	print ".br\n.BI \"    $parameter\"\n";
1492	if ($count == $#{$args{'parameterlist'}}) {
1493	    print "\n};\n";
1494	    last;
1495	}
1496	else {
1497	    print ", \n.br\n";
1498	}
1499	$count++;
1500    }
1501
1502    print ".SH Constants\n";
1503    foreach $parameter (@{$args{'parameterlist'}}) {
1504	my $parameter_name = $parameter;
1505	$parameter_name =~ s/\[.*//;
1506
1507	print ".IP \"" . $parameter . "\" 12\n";
1508	output_highlight($args{'parameterdescs'}{$parameter_name});
1509    }
1510    foreach $section (@{$args{'sectionlist'}}) {
1511	print ".SH \"$section\"\n";
1512	output_highlight($args{'sections'}{$section});
1513    }
1514}
1515
1516##
1517# output struct in man
1518sub output_struct_man(%) {
1519    my %args = %{$_[0]};
1520    my ($parameter, $section);
1521
1522    print ".TH \"$args{'module'}\" 9 \"" . $args{'type'} . " " . $args{'struct'} . "\" \"$man_date\" \"API Manual\" LINUX\n";
1523
1524    print ".SH NAME\n";
1525    print $args{'type'} . " " . $args{'struct'} . " \\- " . $args{'purpose'} . "\n";
1526
1527    print ".SH SYNOPSIS\n";
1528    print $args{'type'} . " " . $args{'struct'} . " {\n.br\n";
1529
1530    foreach my $parameter (@{$args{'parameterlist'}}) {
1531	if ($parameter =~ /^#/) {
1532	    print ".BI \"$parameter\"\n.br\n";
1533	    next;
1534	}
1535	my $parameter_name = $parameter;
1536	$parameter_name =~ s/\[.*//;
1537
1538	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1539	$type = $args{'parametertypes'}{$parameter};
1540	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1541	    # pointer-to-function
1542	    print ".BI \"    " . $1 . "\" " . $parameter . " \") (" . $2 . ")" . "\"\n;\n";
1543	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1544	    # bitfield
1545	    print ".BI \"    " . $1 . "\ \" " . $parameter . $2 . " \"" . "\"\n;\n";
1546	} else {
1547	    $type =~ s/([^\*])$/$1 /;
1548	    print ".BI \"    " . $type . "\" " . $parameter . " \"" . "\"\n;\n";
1549	}
1550	print "\n.br\n";
1551    }
1552    print "};\n.br\n";
1553
1554    print ".SH Members\n";
1555    foreach $parameter (@{$args{'parameterlist'}}) {
1556	($parameter =~ /^#/) && next;
1557
1558	my $parameter_name = $parameter;
1559	$parameter_name =~ s/\[.*//;
1560
1561	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1562	print ".IP \"" . $parameter . "\" 12\n";
1563	output_highlight($args{'parameterdescs'}{$parameter_name});
1564    }
1565    foreach $section (@{$args{'sectionlist'}}) {
1566	print ".SH \"$section\"\n";
1567	output_highlight($args{'sections'}{$section});
1568    }
1569}
1570
1571##
1572# output typedef in man
1573sub output_typedef_man(%) {
1574    my %args = %{$_[0]};
1575    my ($parameter, $section);
1576
1577    print ".TH \"$args{'module'}\" 9 \"$args{'typedef'}\" \"$man_date\" \"API Manual\" LINUX\n";
1578
1579    print ".SH NAME\n";
1580    print "typedef " . $args{'typedef'} . " \\- " . $args{'purpose'} . "\n";
1581
1582    foreach $section (@{$args{'sectionlist'}}) {
1583	print ".SH \"$section\"\n";
1584	output_highlight($args{'sections'}{$section});
1585    }
1586}
1587
1588sub output_blockhead_man(%) {
1589    my %args = %{$_[0]};
1590    my ($parameter, $section);
1591    my $count;
1592
1593    print ".TH \"$args{'module'}\" 9 \"$args{'module'}\" \"$man_date\" \"API Manual\" LINUX\n";
1594
1595    foreach $section (@{$args{'sectionlist'}}) {
1596	print ".SH \"$section\"\n";
1597	output_highlight($args{'sections'}{$section});
1598    }
1599}
1600
1601##
1602# output in text
1603sub output_function_text(%) {
1604    my %args = %{$_[0]};
1605    my ($parameter, $section);
1606    my $start;
1607
1608    print "Name:\n\n";
1609    print $args{'function'} . " - " . $args{'purpose'} . "\n";
1610
1611    print "\nSynopsis:\n\n";
1612    if ($args{'functiontype'} ne "") {
1613	$start = $args{'functiontype'} . " " . $args{'function'} . " (";
1614    } else {
1615	$start = $args{'function'} . " (";
1616    }
1617    print $start;
1618
1619    my $count = 0;
1620    foreach my $parameter (@{$args{'parameterlist'}}) {
1621	$type = $args{'parametertypes'}{$parameter};
1622	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1623	    # pointer-to-function
1624	    print $1 . $parameter . ") (" . $2;
1625	} else {
1626	    print $type . " " . $parameter;
1627	}
1628	if ($count != $#{$args{'parameterlist'}}) {
1629	    $count++;
1630	    print ",\n";
1631	    print " " x length($start);
1632	} else {
1633	    print ");\n\n";
1634	}
1635    }
1636
1637    print "Arguments:\n\n";
1638    foreach $parameter (@{$args{'parameterlist'}}) {
1639	my $parameter_name = $parameter;
1640	$parameter_name =~ s/\[.*//;
1641
1642	print $parameter . "\n\t" . $args{'parameterdescs'}{$parameter_name} . "\n";
1643    }
1644    output_section_text(@_);
1645}
1646
1647#output sections in text
1648sub output_section_text(%) {
1649    my %args = %{$_[0]};
1650    my $section;
1651
1652    print "\n";
1653    foreach $section (@{$args{'sectionlist'}}) {
1654	print "$section:\n\n";
1655	output_highlight($args{'sections'}{$section});
1656    }
1657    print "\n\n";
1658}
1659
1660# output enum in text
1661sub output_enum_text(%) {
1662    my %args = %{$_[0]};
1663    my ($parameter);
1664    my $count;
1665    print "Enum:\n\n";
1666
1667    print "enum " . $args{'enum'} . " - " . $args{'purpose'} . "\n\n";
1668    print "enum " . $args{'enum'} . " {\n";
1669    $count = 0;
1670    foreach $parameter (@{$args{'parameterlist'}}) {
1671	print "\t$parameter";
1672	if ($count != $#{$args{'parameterlist'}}) {
1673	    $count++;
1674	    print ",";
1675	}
1676	print "\n";
1677    }
1678    print "};\n\n";
1679
1680    print "Constants:\n\n";
1681    foreach $parameter (@{$args{'parameterlist'}}) {
1682	print "$parameter\n\t";
1683	print $args{'parameterdescs'}{$parameter} . "\n";
1684    }
1685
1686    output_section_text(@_);
1687}
1688
1689# output typedef in text
1690sub output_typedef_text(%) {
1691    my %args = %{$_[0]};
1692    my ($parameter);
1693    my $count;
1694    print "Typedef:\n\n";
1695
1696    print "typedef " . $args{'typedef'} . " - " . $args{'purpose'} . "\n";
1697    output_section_text(@_);
1698}
1699
1700# output struct as text
1701sub output_struct_text(%) {
1702    my %args = %{$_[0]};
1703    my ($parameter);
1704
1705    print $args{'type'} . " " . $args{'struct'} . " - " . $args{'purpose'} . "\n\n";
1706    print $args{'type'} . " " . $args{'struct'} . " {\n";
1707    foreach $parameter (@{$args{'parameterlist'}}) {
1708	if ($parameter =~ /^#/) {
1709	    print "$parameter\n";
1710	    next;
1711	}
1712
1713	my $parameter_name = $parameter;
1714	$parameter_name =~ s/\[.*//;
1715
1716	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1717	$type = $args{'parametertypes'}{$parameter};
1718	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1719	    # pointer-to-function
1720	    print "\t$1 $parameter) ($2);\n";
1721	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1722	    # bitfield
1723	    print "\t$1 $parameter$2;\n";
1724	} else {
1725	    print "\t" . $type . " " . $parameter . ";\n";
1726	}
1727    }
1728    print "};\n\n";
1729
1730    print "Members:\n\n";
1731    foreach $parameter (@{$args{'parameterlist'}}) {
1732	($parameter =~ /^#/) && next;
1733
1734	my $parameter_name = $parameter;
1735	$parameter_name =~ s/\[.*//;
1736
1737	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1738	print "$parameter\n\t";
1739	print $args{'parameterdescs'}{$parameter_name} . "\n";
1740    }
1741    print "\n";
1742    output_section_text(@_);
1743}
1744
1745sub output_blockhead_text(%) {
1746    my %args = %{$_[0]};
1747    my ($parameter, $section);
1748
1749    foreach $section (@{$args{'sectionlist'}}) {
1750	print " $section:\n";
1751	print "    -> ";
1752	output_highlight($args{'sections'}{$section});
1753    }
1754}
1755
1756##
1757# output in restructured text
1758#
1759
1760#
1761# This could use some work; it's used to output the DOC: sections, and
1762# starts by putting out the name of the doc section itself, but that tends
1763# to duplicate a header already in the template file.
1764#
1765sub output_blockhead_rst(%) {
1766    my %args = %{$_[0]};
1767    my ($parameter, $section);
1768
1769    foreach $section (@{$args{'sectionlist'}}) {
1770	if ($output_selection != OUTPUT_INCLUDE) {
1771	    print "**$section**\n\n";
1772	}
1773	output_highlight_rst($args{'sections'}{$section});
1774	print "\n";
1775    }
1776}
1777
1778sub output_highlight_rst {
1779    my $contents = join "\n",@_;
1780    my $line;
1781
1782    # undo the evil effects of xml_escape() earlier
1783    $contents = xml_unescape($contents);
1784
1785    eval $dohighlight;
1786    die $@ if $@;
1787
1788    foreach $line (split "\n", $contents) {
1789	print $lineprefix . $line . "\n";
1790    }
1791}
1792
1793sub output_function_rst(%) {
1794    my %args = %{$_[0]};
1795    my ($parameter, $section);
1796    my $oldprefix = $lineprefix;
1797    my $start;
1798
1799    print ".. c:function:: ";
1800    if ($args{'functiontype'} ne "") {
1801	$start = $args{'functiontype'} . " " . $args{'function'} . " (";
1802    } else {
1803	$start = $args{'function'} . " (";
1804    }
1805    print $start;
1806
1807    my $count = 0;
1808    foreach my $parameter (@{$args{'parameterlist'}}) {
1809	if ($count ne 0) {
1810	    print ", ";
1811	}
1812	$count++;
1813	$type = $args{'parametertypes'}{$parameter};
1814	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1815	    # pointer-to-function
1816	    print $1 . $parameter . ") (" . $2;
1817	} else {
1818	    print $type . " " . $parameter;
1819	}
1820    }
1821    print ")\n\n";
1822    $lineprefix = "   ";
1823    output_highlight_rst($args{'purpose'});
1824    print "\n";
1825
1826    print ":Parameters:\n\n";
1827    $lineprefix = "        ";
1828    foreach $parameter (@{$args{'parameterlist'}}) {
1829	my $parameter_name = $parameter;
1830	#$parameter_name =~ s/\[.*//;
1831	$type = $args{'parametertypes'}{$parameter};
1832
1833	if ($type ne "") {
1834	    print "      ``$type $parameter``\n";
1835	} else {
1836	    print "      ``$parameter``\n";
1837	}
1838	if (defined($args{'parameterdescs'}{$parameter_name}) &&
1839	    $args{'parameterdescs'}{$parameter_name} ne $undescribed) {
1840	    output_highlight_rst($args{'parameterdescs'}{$parameter_name});
1841	} else {
1842	    print "\n        _undescribed_\n";
1843	}
1844	print "\n";
1845    }
1846
1847    $lineprefix = $oldprefix;
1848    output_section_rst(@_);
1849}
1850
1851sub output_section_rst(%) {
1852    my %args = %{$_[0]};
1853    my $section;
1854    my $oldprefix = $lineprefix;
1855    $lineprefix = "        ";
1856
1857    foreach $section (@{$args{'sectionlist'}}) {
1858	print ":$section:\n\n";
1859	output_highlight_rst($args{'sections'}{$section});
1860	print "\n";
1861    }
1862    print "\n";
1863    $lineprefix = $oldprefix;
1864}
1865
1866sub output_enum_rst(%) {
1867    my %args = %{$_[0]};
1868    my ($parameter);
1869    my $oldprefix = $lineprefix;
1870    my $count;
1871    my $name = "enum " . $args{'enum'};
1872
1873    print "\n\n.. c:type:: " . $name . "\n\n";
1874    $lineprefix = "   ";
1875    output_highlight_rst($args{'purpose'});
1876    print "\n";
1877
1878    print "..\n\n:Constants:\n\n";
1879    $lineprefix = "    ";
1880    foreach $parameter (@{$args{'parameterlist'}}) {
1881	print "  `$parameter`\n";
1882	if ($args{'parameterdescs'}{$parameter} ne $undescribed) {
1883	    output_highlight_rst($args{'parameterdescs'}{$parameter});
1884	} else {
1885	    print "    undescribed\n";
1886	}
1887	print "\n";
1888    }
1889
1890    $lineprefix = $oldprefix;
1891    output_section_rst(@_);
1892}
1893
1894sub output_typedef_rst(%) {
1895    my %args = %{$_[0]};
1896    my ($parameter);
1897    my $oldprefix = $lineprefix;
1898    my $name = "typedef " . $args{'typedef'};
1899
1900    ### FIXME: should the name below contain "typedef" or not?
1901    print "\n\n.. c:type:: " . $name . "\n\n";
1902    $lineprefix = "   ";
1903    output_highlight_rst($args{'purpose'});
1904    print "\n";
1905
1906    $lineprefix = $oldprefix;
1907    output_section_rst(@_);
1908}
1909
1910sub output_struct_rst(%) {
1911    my %args = %{$_[0]};
1912    my ($parameter);
1913    my $oldprefix = $lineprefix;
1914    my $name = $args{'type'} . " " . $args{'struct'};
1915
1916    print "\n\n.. c:type:: " . $name . "\n\n";
1917    $lineprefix = "   ";
1918    output_highlight_rst($args{'purpose'});
1919    print "\n";
1920
1921    print ":Definition:\n\n";
1922    print " ::\n\n";
1923    print "  " . $args{'type'} . " " . $args{'struct'} . " {\n";
1924    foreach $parameter (@{$args{'parameterlist'}}) {
1925	if ($parameter =~ /^#/) {
1926	    print "    " . "$parameter\n";
1927	    next;
1928	}
1929
1930	my $parameter_name = $parameter;
1931	$parameter_name =~ s/\[.*//;
1932
1933	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1934	$type = $args{'parametertypes'}{$parameter};
1935	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1936	    # pointer-to-function
1937	    print "    $1 $parameter) ($2);\n";
1938	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1939	    # bitfield
1940	    print "    $1 $parameter$2;\n";
1941	} else {
1942	    print "    " . $type . " " . $parameter . ";\n";
1943	}
1944    }
1945    print "  };\n\n";
1946
1947    print ":Members:\n\n";
1948    $lineprefix = "        ";
1949    foreach $parameter (@{$args{'parameterlist'}}) {
1950	($parameter =~ /^#/) && next;
1951
1952	my $parameter_name = $parameter;
1953	$parameter_name =~ s/\[.*//;
1954
1955	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1956	$type = $args{'parametertypes'}{$parameter};
1957	print "      `$type $parameter`" . "\n";
1958	output_highlight_rst($args{'parameterdescs'}{$parameter_name});
1959	print "\n";
1960    }
1961    print "\n";
1962
1963    $lineprefix = $oldprefix;
1964    output_section_rst(@_);
1965}
1966
1967
1968## list mode output functions
1969
1970sub output_function_list(%) {
1971    my %args = %{$_[0]};
1972
1973    print $args{'function'} . "\n";
1974}
1975
1976# output enum in list
1977sub output_enum_list(%) {
1978    my %args = %{$_[0]};
1979    print $args{'enum'} . "\n";
1980}
1981
1982# output typedef in list
1983sub output_typedef_list(%) {
1984    my %args = %{$_[0]};
1985    print $args{'typedef'} . "\n";
1986}
1987
1988# output struct as list
1989sub output_struct_list(%) {
1990    my %args = %{$_[0]};
1991
1992    print $args{'struct'} . "\n";
1993}
1994
1995sub output_blockhead_list(%) {
1996    my %args = %{$_[0]};
1997    my ($parameter, $section);
1998
1999    foreach $section (@{$args{'sectionlist'}}) {
2000	print "DOC: $section\n";
2001    }
2002}
2003
2004##
2005# generic output function for all types (function, struct/union, typedef, enum);
2006# calls the generated, variable output_ function name based on
2007# functype and output_mode
2008sub output_declaration {
2009    no strict 'refs';
2010    my $name = shift;
2011    my $functype = shift;
2012    my $func = "output_${functype}_$output_mode";
2013    if (($output_selection == OUTPUT_ALL) ||
2014	(($output_selection == OUTPUT_INCLUDE ||
2015	  $output_selection == OUTPUT_EXPORTED) &&
2016	 defined($function_table{$name})) ||
2017	(($output_selection == OUTPUT_EXCLUDE ||
2018	  $output_selection == OUTPUT_INTERNAL) &&
2019	 !($functype eq "function" && defined($function_table{$name}))))
2020    {
2021	&$func(@_);
2022	$section_counter++;
2023    }
2024}
2025
2026##
2027# generic output function - calls the right one based on current output mode.
2028sub output_blockhead {
2029    no strict 'refs';
2030    my $func = "output_blockhead_" . $output_mode;
2031    &$func(@_);
2032    $section_counter++;
2033}
2034
2035##
2036# takes a declaration (struct, union, enum, typedef) and
2037# invokes the right handler. NOT called for functions.
2038sub dump_declaration($$) {
2039    no strict 'refs';
2040    my ($prototype, $file) = @_;
2041    my $func = "dump_" . $decl_type;
2042    &$func(@_);
2043}
2044
2045sub dump_union($$) {
2046    dump_struct(@_);
2047}
2048
2049sub dump_struct($$) {
2050    my $x = shift;
2051    my $file = shift;
2052    my $nested;
2053
2054    if ($x =~ /(struct|union)\s+(\w+)\s*{(.*)}/) {
2055	#my $decl_type = $1;
2056	$declaration_name = $2;
2057	my $members = $3;
2058
2059	# ignore embedded structs or unions
2060	$members =~ s/({.*})//g;
2061	$nested = $1;
2062
2063	# ignore members marked private:
2064	$members =~ s/\/\*\s*private:.*?\/\*\s*public:.*?\*\///gosi;
2065	$members =~ s/\/\*\s*private:.*//gosi;
2066	# strip comments:
2067	$members =~ s/\/\*.*?\*\///gos;
2068	$nested =~ s/\/\*.*?\*\///gos;
2069	# strip kmemcheck_bitfield_{begin,end}.*;
2070	$members =~ s/kmemcheck_bitfield_.*?;//gos;
2071	# strip attributes
2072	$members =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
2073	$members =~ s/__aligned\s*\([^;]*\)//gos;
2074	$members =~ s/\s*CRYPTO_MINALIGN_ATTR//gos;
2075	# replace DECLARE_BITMAP
2076	$members =~ s/DECLARE_BITMAP\s*\(([^,)]+), ([^,)]+)\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
2077
2078	create_parameterlist($members, ';', $file);
2079	check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested);
2080
2081	output_declaration($declaration_name,
2082			   'struct',
2083			   {'struct' => $declaration_name,
2084			    'module' => $modulename,
2085			    'parameterlist' => \@parameterlist,
2086			    'parameterdescs' => \%parameterdescs,
2087			    'parametertypes' => \%parametertypes,
2088			    'sectionlist' => \@sectionlist,
2089			    'sections' => \%sections,
2090			    'purpose' => $declaration_purpose,
2091			    'type' => $decl_type
2092			   });
2093    }
2094    else {
2095	print STDERR "${file}:$.: error: Cannot parse struct or union!\n";
2096	++$errors;
2097    }
2098}
2099
2100sub dump_enum($$) {
2101    my $x = shift;
2102    my $file = shift;
2103
2104    $x =~ s@/\*.*?\*/@@gos;	# strip comments.
2105    # strip #define macros inside enums
2106    $x =~ s@#\s*((define|ifdef)\s+|endif)[^;]*;@@gos;
2107
2108    if ($x =~ /enum\s+(\w+)\s*{(.*)}/) {
2109	$declaration_name = $1;
2110	my $members = $2;
2111
2112	foreach my $arg (split ',', $members) {
2113	    $arg =~ s/^\s*(\w+).*/$1/;
2114	    push @parameterlist, $arg;
2115	    if (!$parameterdescs{$arg}) {
2116		$parameterdescs{$arg} = $undescribed;
2117		print STDERR "${file}:$.: warning: Enum value '$arg' ".
2118		    "not described in enum '$declaration_name'\n";
2119	    }
2120
2121	}
2122
2123	output_declaration($declaration_name,
2124			   'enum',
2125			   {'enum' => $declaration_name,
2126			    'module' => $modulename,
2127			    'parameterlist' => \@parameterlist,
2128			    'parameterdescs' => \%parameterdescs,
2129			    'sectionlist' => \@sectionlist,
2130			    'sections' => \%sections,
2131			    'purpose' => $declaration_purpose
2132			   });
2133    }
2134    else {
2135	print STDERR "${file}:$.: error: Cannot parse enum!\n";
2136	++$errors;
2137    }
2138}
2139
2140sub dump_typedef($$) {
2141    my $x = shift;
2142    my $file = shift;
2143
2144    $x =~ s@/\*.*?\*/@@gos;	# strip comments.
2145
2146    # Parse function prototypes
2147    if ($x =~ /typedef\s+(\w+)\s*\(\*\s*(\w\S+)\s*\)\s*\((.*)\);/) {
2148	# Function typedefs
2149	$return_type = $1;
2150	$declaration_name = $2;
2151	my $args = $3;
2152
2153	create_parameterlist($args, ',', $file);
2154
2155	output_declaration($declaration_name,
2156			   'function',
2157			   {'function' => $declaration_name,
2158			    'module' => $modulename,
2159			    'functiontype' => $return_type,
2160			    'parameterlist' => \@parameterlist,
2161			    'parameterdescs' => \%parameterdescs,
2162			    'parametertypes' => \%parametertypes,
2163			    'sectionlist' => \@sectionlist,
2164			    'sections' => \%sections,
2165			    'purpose' => $declaration_purpose
2166			   });
2167	return;
2168    }
2169
2170    while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
2171	$x =~ s/\(*.\)\s*;$/;/;
2172	$x =~ s/\[*.\]\s*;$/;/;
2173    }
2174
2175    if ($x =~ /typedef.*\s+(\w+)\s*;/) {
2176	$declaration_name = $1;
2177
2178	output_declaration($declaration_name,
2179			   'typedef',
2180			   {'typedef' => $declaration_name,
2181			    'module' => $modulename,
2182			    'sectionlist' => \@sectionlist,
2183			    'sections' => \%sections,
2184			    'purpose' => $declaration_purpose
2185			   });
2186    }
2187    else {
2188	print STDERR "${file}:$.: error: Cannot parse typedef!\n";
2189	++$errors;
2190    }
2191}
2192
2193sub save_struct_actual($) {
2194    my $actual = shift;
2195
2196    # strip all spaces from the actual param so that it looks like one string item
2197    $actual =~ s/\s*//g;
2198    $struct_actual = $struct_actual . $actual . " ";
2199}
2200
2201sub create_parameterlist($$$) {
2202    my $args = shift;
2203    my $splitter = shift;
2204    my $file = shift;
2205    my $type;
2206    my $param;
2207
2208    # temporarily replace commas inside function pointer definition
2209    while ($args =~ /(\([^\),]+),/) {
2210	$args =~ s/(\([^\),]+),/$1#/g;
2211    }
2212
2213    foreach my $arg (split($splitter, $args)) {
2214	# strip comments
2215	$arg =~ s/\/\*.*\*\///;
2216	# strip leading/trailing spaces
2217	$arg =~ s/^\s*//;
2218	$arg =~ s/\s*$//;
2219	$arg =~ s/\s+/ /;
2220
2221	if ($arg =~ /^#/) {
2222	    # Treat preprocessor directive as a typeless variable just to fill
2223	    # corresponding data structures "correctly". Catch it later in
2224	    # output_* subs.
2225	    push_parameter($arg, "", $file);
2226	} elsif ($arg =~ m/\(.+\)\s*\(/) {
2227	    # pointer-to-function
2228	    $arg =~ tr/#/,/;
2229	    $arg =~ m/[^\(]+\(\*?\s*(\w*)\s*\)/;
2230	    $param = $1;
2231	    $type = $arg;
2232	    $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
2233	    save_struct_actual($param);
2234	    push_parameter($param, $type, $file);
2235	} elsif ($arg) {
2236	    $arg =~ s/\s*:\s*/:/g;
2237	    $arg =~ s/\s*\[/\[/g;
2238
2239	    my @args = split('\s*,\s*', $arg);
2240	    if ($args[0] =~ m/\*/) {
2241		$args[0] =~ s/(\*+)\s*/ $1/;
2242	    }
2243
2244	    my @first_arg;
2245	    if ($args[0] =~ /^(.*\s+)(.*?\[.*\].*)$/) {
2246		    shift @args;
2247		    push(@first_arg, split('\s+', $1));
2248		    push(@first_arg, $2);
2249	    } else {
2250		    @first_arg = split('\s+', shift @args);
2251	    }
2252
2253	    unshift(@args, pop @first_arg);
2254	    $type = join " ", @first_arg;
2255
2256	    foreach $param (@args) {
2257		if ($param =~ m/^(\*+)\s*(.*)/) {
2258		    save_struct_actual($2);
2259		    push_parameter($2, "$type $1", $file);
2260		}
2261		elsif ($param =~ m/(.*?):(\d+)/) {
2262		    if ($type ne "") { # skip unnamed bit-fields
2263			save_struct_actual($1);
2264			push_parameter($1, "$type:$2", $file)
2265		    }
2266		}
2267		else {
2268		    save_struct_actual($param);
2269		    push_parameter($param, $type, $file);
2270		}
2271	    }
2272	}
2273    }
2274}
2275
2276sub push_parameter($$$) {
2277	my $param = shift;
2278	my $type = shift;
2279	my $file = shift;
2280
2281	if (($anon_struct_union == 1) && ($type eq "") &&
2282	    ($param eq "}")) {
2283		return;		# ignore the ending }; from anon. struct/union
2284	}
2285
2286	$anon_struct_union = 0;
2287	my $param_name = $param;
2288	$param_name =~ s/\[.*//;
2289
2290	if ($type eq "" && $param =~ /\.\.\.$/)
2291	{
2292	    if (!defined $parameterdescs{$param} || $parameterdescs{$param} eq "") {
2293		$parameterdescs{$param} = "variable arguments";
2294	    }
2295	}
2296	elsif ($type eq "" && ($param eq "" or $param eq "void"))
2297	{
2298	    $param="void";
2299	    $parameterdescs{void} = "no arguments";
2300	}
2301	elsif ($type eq "" && ($param eq "struct" or $param eq "union"))
2302	# handle unnamed (anonymous) union or struct:
2303	{
2304		$type = $param;
2305		$param = "{unnamed_" . $param . "}";
2306		$parameterdescs{$param} = "anonymous\n";
2307		$anon_struct_union = 1;
2308	}
2309
2310	# warn if parameter has no description
2311	# (but ignore ones starting with # as these are not parameters
2312	# but inline preprocessor statements);
2313	# also ignore unnamed structs/unions;
2314	if (!$anon_struct_union) {
2315	if (!defined $parameterdescs{$param_name} && $param_name !~ /^#/) {
2316
2317	    $parameterdescs{$param_name} = $undescribed;
2318
2319	    if (($type eq 'function') || ($type eq 'enum')) {
2320		print STDERR "${file}:$.: warning: Function parameter ".
2321		    "or member '$param' not " .
2322		    "described in '$declaration_name'\n";
2323	    }
2324	    print STDERR "${file}:$.: warning:" .
2325			 " No description found for parameter '$param'\n";
2326	    ++$warnings;
2327	}
2328	}
2329
2330	$param = xml_escape($param);
2331
2332	# strip spaces from $param so that it is one continuous string
2333	# on @parameterlist;
2334	# this fixes a problem where check_sections() cannot find
2335	# a parameter like "addr[6 + 2]" because it actually appears
2336	# as "addr[6", "+", "2]" on the parameter list;
2337	# but it's better to maintain the param string unchanged for output,
2338	# so just weaken the string compare in check_sections() to ignore
2339	# "[blah" in a parameter string;
2340	###$param =~ s/\s*//g;
2341	push @parameterlist, $param;
2342	$parametertypes{$param} = $type;
2343}
2344
2345sub check_sections($$$$$$) {
2346	my ($file, $decl_name, $decl_type, $sectcheck, $prmscheck, $nested) = @_;
2347	my @sects = split ' ', $sectcheck;
2348	my @prms = split ' ', $prmscheck;
2349	my $err;
2350	my ($px, $sx);
2351	my $prm_clean;		# strip trailing "[array size]" and/or beginning "*"
2352
2353	foreach $sx (0 .. $#sects) {
2354		$err = 1;
2355		foreach $px (0 .. $#prms) {
2356			$prm_clean = $prms[$px];
2357			$prm_clean =~ s/\[.*\]//;
2358			$prm_clean =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
2359			# ignore array size in a parameter string;
2360			# however, the original param string may contain
2361			# spaces, e.g.:  addr[6 + 2]
2362			# and this appears in @prms as "addr[6" since the
2363			# parameter list is split at spaces;
2364			# hence just ignore "[..." for the sections check;
2365			$prm_clean =~ s/\[.*//;
2366
2367			##$prm_clean =~ s/^\**//;
2368			if ($prm_clean eq $sects[$sx]) {
2369				$err = 0;
2370				last;
2371			}
2372		}
2373		if ($err) {
2374			if ($decl_type eq "function") {
2375				print STDERR "${file}:$.: warning: " .
2376					"Excess function parameter " .
2377					"'$sects[$sx]' " .
2378					"description in '$decl_name'\n";
2379				++$warnings;
2380			} else {
2381				if ($nested !~ m/\Q$sects[$sx]\E/) {
2382				    print STDERR "${file}:$.: warning: " .
2383					"Excess struct/union/enum/typedef member " .
2384					"'$sects[$sx]' " .
2385					"description in '$decl_name'\n";
2386				    ++$warnings;
2387				}
2388			}
2389		}
2390	}
2391}
2392
2393##
2394# Checks the section describing the return value of a function.
2395sub check_return_section {
2396        my $file = shift;
2397        my $declaration_name = shift;
2398        my $return_type = shift;
2399
2400        # Ignore an empty return type (It's a macro)
2401        # Ignore functions with a "void" return type. (But don't ignore "void *")
2402        if (($return_type eq "") || ($return_type =~ /void\s*\w*\s*$/)) {
2403                return;
2404        }
2405
2406        if (!defined($sections{$section_return}) ||
2407            $sections{$section_return} eq "") {
2408                print STDERR "${file}:$.: warning: " .
2409                        "No description found for return value of " .
2410                        "'$declaration_name'\n";
2411                ++$warnings;
2412        }
2413}
2414
2415##
2416# takes a function prototype and the name of the current file being
2417# processed and spits out all the details stored in the global
2418# arrays/hashes.
2419sub dump_function($$) {
2420    my $prototype = shift;
2421    my $file = shift;
2422    my $noret = 0;
2423
2424    $prototype =~ s/^static +//;
2425    $prototype =~ s/^extern +//;
2426    $prototype =~ s/^asmlinkage +//;
2427    $prototype =~ s/^inline +//;
2428    $prototype =~ s/^__inline__ +//;
2429    $prototype =~ s/^__inline +//;
2430    $prototype =~ s/^__always_inline +//;
2431    $prototype =~ s/^noinline +//;
2432    $prototype =~ s/__init +//;
2433    $prototype =~ s/__init_or_module +//;
2434    $prototype =~ s/__meminit +//;
2435    $prototype =~ s/__must_check +//;
2436    $prototype =~ s/__weak +//;
2437    my $define = $prototype =~ s/^#\s*define\s+//; #ak added
2438    $prototype =~ s/__attribute__\s*\(\([a-z,]*\)\)//;
2439
2440    # Yes, this truly is vile.  We are looking for:
2441    # 1. Return type (may be nothing if we're looking at a macro)
2442    # 2. Function name
2443    # 3. Function parameters.
2444    #
2445    # All the while we have to watch out for function pointer parameters
2446    # (which IIRC is what the two sections are for), C types (these
2447    # regexps don't even start to express all the possibilities), and
2448    # so on.
2449    #
2450    # If you mess with these regexps, it's a good idea to check that
2451    # the following functions' documentation still comes out right:
2452    # - parport_register_device (function pointer parameters)
2453    # - atomic_set (macro)
2454    # - pci_match_device, __copy_to_user (long return type)
2455
2456    if ($define && $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s+/) {
2457        # This is an object-like macro, it has no return type and no parameter
2458        # list.
2459        # Function-like macros are not allowed to have spaces between
2460        # declaration_name and opening parenthesis (notice the \s+).
2461        $return_type = $1;
2462        $declaration_name = $2;
2463        $noret = 1;
2464    } elsif ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2465	$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2466	$prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2467	$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2468	$prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2469	$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2470	$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2471	$prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2472	$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2473	$prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2474	$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2475	$prototype =~ m/^(\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2476	$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2477	$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2478	$prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2479	$prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2480	$prototype =~ m/^(\w+\s+\w+\s*\*\s*\w+\s*\*\s*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/)  {
2481	$return_type = $1;
2482	$declaration_name = $2;
2483	my $args = $3;
2484
2485	create_parameterlist($args, ',', $file);
2486    } else {
2487	print STDERR "${file}:$.: warning: cannot understand function prototype: '$prototype'\n";
2488	return;
2489    }
2490
2491	my $prms = join " ", @parameterlist;
2492	check_sections($file, $declaration_name, "function", $sectcheck, $prms, "");
2493
2494        # This check emits a lot of warnings at the moment, because many
2495        # functions don't have a 'Return' doc section. So until the number
2496        # of warnings goes sufficiently down, the check is only performed in
2497        # verbose mode.
2498        # TODO: always perform the check.
2499        if ($verbose && !$noret) {
2500                check_return_section($file, $declaration_name, $return_type);
2501        }
2502
2503    output_declaration($declaration_name,
2504		       'function',
2505		       {'function' => $declaration_name,
2506			'module' => $modulename,
2507			'functiontype' => $return_type,
2508			'parameterlist' => \@parameterlist,
2509			'parameterdescs' => \%parameterdescs,
2510			'parametertypes' => \%parametertypes,
2511			'sectionlist' => \@sectionlist,
2512			'sections' => \%sections,
2513			'purpose' => $declaration_purpose
2514		       });
2515}
2516
2517sub reset_state {
2518    $function = "";
2519    %parameterdescs = ();
2520    %parametertypes = ();
2521    @parameterlist = ();
2522    %sections = ();
2523    @sectionlist = ();
2524    $sectcheck = "";
2525    $struct_actual = "";
2526    $prototype = "";
2527
2528    $state = STATE_NORMAL;
2529    $inline_doc_state = STATE_INLINE_NA;
2530}
2531
2532sub tracepoint_munge($) {
2533	my $file = shift;
2534	my $tracepointname = 0;
2535	my $tracepointargs = 0;
2536
2537	if ($prototype =~ m/TRACE_EVENT\((.*?),/) {
2538		$tracepointname = $1;
2539	}
2540	if ($prototype =~ m/DEFINE_SINGLE_EVENT\((.*?),/) {
2541		$tracepointname = $1;
2542	}
2543	if ($prototype =~ m/DEFINE_EVENT\((.*?),(.*?),/) {
2544		$tracepointname = $2;
2545	}
2546	$tracepointname =~ s/^\s+//; #strip leading whitespace
2547	if ($prototype =~ m/TP_PROTO\((.*?)\)/) {
2548		$tracepointargs = $1;
2549	}
2550	if (($tracepointname eq 0) || ($tracepointargs eq 0)) {
2551		print STDERR "${file}:$.: warning: Unrecognized tracepoint format: \n".
2552			     "$prototype\n";
2553	} else {
2554		$prototype = "static inline void trace_$tracepointname($tracepointargs)";
2555	}
2556}
2557
2558sub syscall_munge() {
2559	my $void = 0;
2560
2561	$prototype =~ s@[\r\n\t]+@ @gos; # strip newlines/CR's/tabs
2562##	if ($prototype =~ m/SYSCALL_DEFINE0\s*\(\s*(a-zA-Z0-9_)*\s*\)/) {
2563	if ($prototype =~ m/SYSCALL_DEFINE0/) {
2564		$void = 1;
2565##		$prototype = "long sys_$1(void)";
2566	}
2567
2568	$prototype =~ s/SYSCALL_DEFINE.*\(/long sys_/; # fix return type & func name
2569	if ($prototype =~ m/long (sys_.*?),/) {
2570		$prototype =~ s/,/\(/;
2571	} elsif ($void) {
2572		$prototype =~ s/\)/\(void\)/;
2573	}
2574
2575	# now delete all of the odd-number commas in $prototype
2576	# so that arg types & arg names don't have a comma between them
2577	my $count = 0;
2578	my $len = length($prototype);
2579	if ($void) {
2580		$len = 0;	# skip the for-loop
2581	}
2582	for (my $ix = 0; $ix < $len; $ix++) {
2583		if (substr($prototype, $ix, 1) eq ',') {
2584			$count++;
2585			if ($count % 2 == 1) {
2586				substr($prototype, $ix, 1) = ' ';
2587			}
2588		}
2589	}
2590}
2591
2592sub process_state3_function($$) {
2593    my $x = shift;
2594    my $file = shift;
2595
2596    $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
2597
2598    if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#\s*define/)) {
2599	# do nothing
2600    }
2601    elsif ($x =~ /([^\{]*)/) {
2602	$prototype .= $1;
2603    }
2604
2605    if (($x =~ /\{/) || ($x =~ /\#\s*define/) || ($x =~ /;/)) {
2606	$prototype =~ s@/\*.*?\*/@@gos;	# strip comments.
2607	$prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
2608	$prototype =~ s@^\s+@@gos; # strip leading spaces
2609	if ($prototype =~ /SYSCALL_DEFINE/) {
2610		syscall_munge();
2611	}
2612	if ($prototype =~ /TRACE_EVENT/ || $prototype =~ /DEFINE_EVENT/ ||
2613	    $prototype =~ /DEFINE_SINGLE_EVENT/)
2614	{
2615		tracepoint_munge($file);
2616	}
2617	dump_function($prototype, $file);
2618	reset_state();
2619    }
2620}
2621
2622sub process_state3_type($$) {
2623    my $x = shift;
2624    my $file = shift;
2625
2626    $x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
2627    $x =~ s@^\s+@@gos; # strip leading spaces
2628    $x =~ s@\s+$@@gos; # strip trailing spaces
2629    $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
2630
2631    if ($x =~ /^#/) {
2632	# To distinguish preprocessor directive from regular declaration later.
2633	$x .= ";";
2634    }
2635
2636    while (1) {
2637	if ( $x =~ /([^{};]*)([{};])(.*)/ ) {
2638	    $prototype .= $1 . $2;
2639	    ($2 eq '{') && $brcount++;
2640	    ($2 eq '}') && $brcount--;
2641	    if (($2 eq ';') && ($brcount == 0)) {
2642		dump_declaration($prototype, $file);
2643		reset_state();
2644		last;
2645	    }
2646	    $x = $3;
2647	} else {
2648	    $prototype .= $x;
2649	    last;
2650	}
2651    }
2652}
2653
2654# xml_escape: replace <, >, and & in the text stream;
2655#
2656# however, formatting controls that are generated internally/locally in the
2657# kernel-doc script are not escaped here; instead, they begin life like
2658# $blankline_html (4 of '\' followed by a mnemonic + ':'), then these strings
2659# are converted to their mnemonic-expected output, without the 4 * '\' & ':',
2660# just before actual output; (this is done by local_unescape())
2661sub xml_escape($) {
2662	my $text = shift;
2663	if (($output_mode eq "text") || ($output_mode eq "man")) {
2664		return $text;
2665	}
2666	$text =~ s/\&/\\\\\\amp;/g;
2667	$text =~ s/\</\\\\\\lt;/g;
2668	$text =~ s/\>/\\\\\\gt;/g;
2669	return $text;
2670}
2671
2672# xml_unescape: reverse the effects of xml_escape
2673sub xml_unescape($) {
2674	my $text = shift;
2675	if (($output_mode eq "text") || ($output_mode eq "man")) {
2676		return $text;
2677	}
2678	$text =~ s/\\\\\\amp;/\&/g;
2679	$text =~ s/\\\\\\lt;/</g;
2680	$text =~ s/\\\\\\gt;/>/g;
2681	return $text;
2682}
2683
2684# convert local escape strings to html
2685# local escape strings look like:  '\\\\menmonic:' (that's 4 backslashes)
2686sub local_unescape($) {
2687	my $text = shift;
2688	if (($output_mode eq "text") || ($output_mode eq "man")) {
2689		return $text;
2690	}
2691	$text =~ s/\\\\\\\\lt:/</g;
2692	$text =~ s/\\\\\\\\gt:/>/g;
2693	return $text;
2694}
2695
2696sub process_file($) {
2697    my $file;
2698    my $identifier;
2699    my $func;
2700    my $descr;
2701    my $in_purpose = 0;
2702    my $initial_section_counter = $section_counter;
2703    my ($orig_file) = @_;
2704
2705    if (defined($ENV{'SRCTREE'})) {
2706	$file = "$ENV{'SRCTREE'}" . "/" . $orig_file;
2707    }
2708    else {
2709	$file = $orig_file;
2710    }
2711    if (defined($source_map{$file})) {
2712	$file = $source_map{$file};
2713    }
2714
2715    if (!open(IN,"<$file")) {
2716	print STDERR "Error: Cannot open file $file\n";
2717	++$errors;
2718	return;
2719    }
2720
2721    # two passes for -export and -internal
2722    if ($output_selection == OUTPUT_EXPORTED ||
2723	$output_selection == OUTPUT_INTERNAL) {
2724	while (<IN>) {
2725	    if (/$export_symbol/o) {
2726		$function_table{$2} = 1;
2727	    }
2728	}
2729	seek(IN, 0, 0);
2730    }
2731
2732    $. = 1;
2733
2734    $section_counter = 0;
2735    while (<IN>) {
2736	while (s/\\\s*$//) {
2737	    $_ .= <IN>;
2738	}
2739	if ($state == STATE_NORMAL) {
2740	    if (/$doc_start/o) {
2741		$state = STATE_NAME;	# next line is always the function name
2742		$in_doc_sect = 0;
2743	    }
2744	} elsif ($state == STATE_NAME) {# this line is the function name (always)
2745	    if (/$doc_block/o) {
2746		$state = STATE_DOCBLOCK;
2747		$contents = "";
2748		if ( $1 eq "" ) {
2749			$section = $section_intro;
2750		} else {
2751			$section = $1;
2752		}
2753	    }
2754	    elsif (/$doc_decl/o) {
2755		$identifier = $1;
2756		if (/\s*([\w\s]+?)\s*-/) {
2757		    $identifier = $1;
2758		}
2759
2760		$state = STATE_FIELD;
2761		if (/-(.*)/) {
2762		    # strip leading/trailing/multiple spaces
2763		    $descr= $1;
2764		    $descr =~ s/^\s*//;
2765		    $descr =~ s/\s*$//;
2766		    $descr =~ s/\s+/ /g;
2767		    $declaration_purpose = xml_escape($descr);
2768		    $in_purpose = 1;
2769		} else {
2770		    $declaration_purpose = "";
2771		}
2772
2773		if (($declaration_purpose eq "") && $verbose) {
2774			print STDERR "${file}:$.: warning: missing initial short description on line:\n";
2775			print STDERR $_;
2776			++$warnings;
2777		}
2778
2779		if ($identifier =~ m/^struct/) {
2780		    $decl_type = 'struct';
2781		} elsif ($identifier =~ m/^union/) {
2782		    $decl_type = 'union';
2783		} elsif ($identifier =~ m/^enum/) {
2784		    $decl_type = 'enum';
2785		} elsif ($identifier =~ m/^typedef/) {
2786		    $decl_type = 'typedef';
2787		} else {
2788		    $decl_type = 'function';
2789		}
2790
2791		if ($verbose) {
2792		    print STDERR "${file}:$.: info: Scanning doc for $identifier\n";
2793		}
2794	    } else {
2795		print STDERR "${file}:$.: warning: Cannot understand $_ on line $.",
2796		" - I thought it was a doc line\n";
2797		++$warnings;
2798		$state = STATE_NORMAL;
2799	    }
2800	} elsif ($state == STATE_FIELD) {	# look for head: lines, and include content
2801	    if (/$doc_sect/o) {
2802		$newsection = $1;
2803		$newcontents = $2;
2804
2805		if (($contents ne "") && ($contents ne "\n")) {
2806		    if (!$in_doc_sect && $verbose) {
2807			print STDERR "${file}:$.: warning: contents before sections\n";
2808			++$warnings;
2809		    }
2810		    dump_section($file, $section, xml_escape($contents));
2811		    $section = $section_default;
2812		}
2813
2814		$in_doc_sect = 1;
2815		$in_purpose = 0;
2816		$contents = $newcontents;
2817		if ($contents ne "") {
2818		    while ((substr($contents, 0, 1) eq " ") ||
2819			substr($contents, 0, 1) eq "\t") {
2820			    $contents = substr($contents, 1);
2821		    }
2822		    $contents .= "\n";
2823		}
2824		$section = $newsection;
2825	    } elsif (/$doc_end/) {
2826		if (($contents ne "") && ($contents ne "\n")) {
2827		    dump_section($file, $section, xml_escape($contents));
2828		    $section = $section_default;
2829		    $contents = "";
2830		}
2831		# look for doc_com + <text> + doc_end:
2832		if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
2833		    print STDERR "${file}:$.: warning: suspicious ending line: $_";
2834		    ++$warnings;
2835		}
2836
2837		$prototype = "";
2838		$state = STATE_PROTO;
2839		$brcount = 0;
2840#		print STDERR "end of doc comment, looking for prototype\n";
2841	    } elsif (/$doc_content/) {
2842		# miguel-style comment kludge, look for blank lines after
2843		# @parameter line to signify start of description
2844		if ($1 eq "") {
2845		    if ($section =~ m/^@/ || $section eq $section_context) {
2846			dump_section($file, $section, xml_escape($contents));
2847			$section = $section_default;
2848			$contents = "";
2849		    } else {
2850			$contents .= "\n";
2851		    }
2852		    $in_purpose = 0;
2853		} elsif ($in_purpose == 1) {
2854		    # Continued declaration purpose
2855		    chomp($declaration_purpose);
2856		    $declaration_purpose .= " " . xml_escape($1);
2857		    $declaration_purpose =~ s/\s+/ /g;
2858		} else {
2859		    $contents .= $1 . "\n";
2860		}
2861	    } else {
2862		# i dont know - bad line?  ignore.
2863		print STDERR "${file}:$.: warning: bad line: $_";
2864		++$warnings;
2865	    }
2866	} elsif ($state == STATE_INLINE) { # scanning for inline parameters
2867	    # First line (state 1) needs to be a @parameter
2868	    if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
2869		$section = $1;
2870		$contents = $2;
2871		if ($contents ne "") {
2872		    while ((substr($contents, 0, 1) eq " ") ||
2873		           substr($contents, 0, 1) eq "\t") {
2874			$contents = substr($contents, 1);
2875		    }
2876		    $contents .= "\n";
2877		}
2878		$inline_doc_state = STATE_INLINE_TEXT;
2879	    # Documentation block end */
2880	    } elsif (/$doc_inline_end/) {
2881		if (($contents ne "") && ($contents ne "\n")) {
2882		    dump_section($file, $section, xml_escape($contents));
2883		    $section = $section_default;
2884		    $contents = "";
2885		}
2886		$state = STATE_PROTO;
2887		$inline_doc_state = STATE_INLINE_NA;
2888	    # Regular text
2889	    } elsif (/$doc_content/) {
2890		if ($inline_doc_state == STATE_INLINE_TEXT) {
2891		    $contents .= $1 . "\n";
2892		    # nuke leading blank lines
2893		    if ($contents =~ /^\s*$/) {
2894			$contents = "";
2895		    }
2896		} elsif ($inline_doc_state == STATE_INLINE_NAME) {
2897		    $inline_doc_state = STATE_INLINE_ERROR;
2898		    print STDERR "Warning(${file}:$.): ";
2899		    print STDERR "Incorrect use of kernel-doc format: $_";
2900		    ++$warnings;
2901		}
2902	    }
2903	} elsif ($state == STATE_PROTO) {	# scanning for function '{' (end of prototype)
2904	    if (/$doc_inline_start/) {
2905		$state = STATE_INLINE;
2906		$inline_doc_state = STATE_INLINE_NAME;
2907	    } elsif ($decl_type eq 'function') {
2908		process_state3_function($_, $file);
2909	    } else {
2910		process_state3_type($_, $file);
2911	    }
2912	} elsif ($state == STATE_DOCBLOCK) {
2913		# Documentation block
2914		if (/$doc_block/) {
2915			dump_doc_section($file, $section, xml_escape($contents));
2916			$contents = "";
2917			$function = "";
2918			%parameterdescs = ();
2919			%parametertypes = ();
2920			@parameterlist = ();
2921			%sections = ();
2922			@sectionlist = ();
2923			$prototype = "";
2924			if ( $1 eq "" ) {
2925				$section = $section_intro;
2926			} else {
2927				$section = $1;
2928			}
2929		}
2930		elsif (/$doc_end/)
2931		{
2932			dump_doc_section($file, $section, xml_escape($contents));
2933			$contents = "";
2934			$function = "";
2935			%parameterdescs = ();
2936			%parametertypes = ();
2937			@parameterlist = ();
2938			%sections = ();
2939			@sectionlist = ();
2940			$prototype = "";
2941			$state = STATE_NORMAL;
2942		}
2943		elsif (/$doc_content/)
2944		{
2945			if ( $1 eq "" )
2946			{
2947				$contents .= $blankline;
2948			}
2949			else
2950			{
2951				$contents .= $1 . "\n";
2952			}
2953		}
2954	}
2955    }
2956    if ($initial_section_counter == $section_counter) {
2957	print STDERR "${file}:1: warning: no structured comments found\n";
2958	if (($output_selection == OUTPUT_INCLUDE) && ($show_not_found == 1)) {
2959	    print STDERR "    Was looking for '$_'.\n" for keys %function_table;
2960	}
2961	if ($output_mode eq "xml") {
2962	    # The template wants at least one RefEntry here; make one.
2963	    print "<refentry>\n";
2964	    print " <refnamediv>\n";
2965	    print "  <refname>\n";
2966	    print "   ${orig_file}\n";
2967	    print "  </refname>\n";
2968	    print "  <refpurpose>\n";
2969	    print "   Document generation inconsistency\n";
2970	    print "  </refpurpose>\n";
2971	    print " </refnamediv>\n";
2972	    print " <refsect1>\n";
2973	    print "  <title>\n";
2974	    print "   Oops\n";
2975	    print "  </title>\n";
2976	    print "  <warning>\n";
2977	    print "   <para>\n";
2978	    print "    The template for this document tried to insert\n";
2979	    print "    the structured comment from the file\n";
2980	    print "    <filename>${orig_file}</filename> at this point,\n";
2981	    print "    but none was found.\n";
2982	    print "    This dummy section is inserted to allow\n";
2983	    print "    generation to continue.\n";
2984	    print "   </para>\n";
2985	    print "  </warning>\n";
2986	    print " </refsect1>\n";
2987	    print "</refentry>\n";
2988	}
2989    }
2990}
2991
2992
2993$kernelversion = get_kernel_version();
2994
2995# generate a sequence of code that will splice in highlighting information
2996# using the s// operator.
2997for (my $k = 0; $k < @highlights; $k++) {
2998    my $pattern = $highlights[$k][0];
2999    my $result = $highlights[$k][1];
3000#   print STDERR "scanning pattern:$pattern, highlight:($result)\n";
3001    $dohighlight .=  "\$contents =~ s:$pattern:$result:gs;\n";
3002}
3003
3004# Read the file that maps relative names to absolute names for
3005# separate source and object directories and for shadow trees.
3006if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
3007	my ($relname, $absname);
3008	while(<SOURCE_MAP>) {
3009		chop();
3010		($relname, $absname) = (split())[0..1];
3011		$relname =~ s:^/+::;
3012		$source_map{$relname} = $absname;
3013	}
3014	close(SOURCE_MAP);
3015}
3016
3017foreach (@ARGV) {
3018    chomp;
3019    process_file($_);
3020}
3021if ($verbose && $errors) {
3022  print STDERR "$errors errors\n";
3023}
3024if ($verbose && $warnings) {
3025  print STDERR "$warnings warnings\n";
3026}
3027
3028exit($errors);
3029