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