scripts/kernel-doc

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