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