scripts/kernel-doc

   1 #!/usr/bin/env perl
   2
   3 use warnings;
   4 use strict;
   5
   6 ## Copyright (c) 1998 Michael Zucchi, All Rights Reserved        ##
   7 ## Copyright (C) 2000, 1  Tim Waugh <twaugh@redhat.com>          ##
   8 ## Copyright (C) 2001  Simon Huggins                             ##
   9 ## Copyright (C) 2005-2012  Randy Dunlap                         ##
  10 ## Copyright (C) 2012  Dan Luedtke                               ##
  11 ##                                                               ##
  12 ## #define enhancements by Armin Kuster <akuster@mvista.com>     ##
  13 ## Copyright (c) 2000 MontaVista Software, Inc.                  ##
  14 ##                                                               ##
  15 ## This software falls under the GNU General Public License.     ##
  16 ## Please read the COPYING file for more information             ##
  17
  18 # 18/01/2001 -  Cleanups
  19 #               Functions prototyped as foo(void) same as foo()
  20 #               Stop eval'ing where we don't need to.
  21 # -- huggie@earth.li
  22
  23 # 27/06/2001 -  Allowed whitespace after initial "/**" and
  24 #               allowed comments before function declarations.
  25 # -- Christian Kreibich <ck@whoop.org>
  26
  27 # Still to do:
  28 #       - add perldoc documentation
  29 #       - Look more closely at some of the scarier bits :)
  30
  31 # 26/05/2001 -  Support for separate source and object trees.
  32 #               Return error code.
  33 #               Keith Owens <kaos@ocs.com.au>
  34
  35 # 23/09/2001 - Added support for typedefs, structs, enums and unions
  36 #              Support for Context section; can be terminated using empty line
  37 #              Small fixes (like spaces vs. \s in regex)
  38 # -- Tim Jansen <tim@tjansen.de>
  39
  40 # 25/07/2012 - Added support for HTML5
  41 # -- Dan Luedtke <mail@danrl.de>
  42
  43 sub usage {
  44     my $message = <<"EOF";
  45 Usage: $0 [OPTION ...] FILE ...
  46
  47 Read C language source or header FILEs, extract embedded documentation comments,
  48 and print formatted documentation to standard output.
  49
  50 The documentation comments are identified by "/**" opening comment mark. See
  51 Documentation/kernel-doc-nano-HOWTO.txt for the documentation comment syntax.
  52
  53 Output format selection (mutually exclusive):
  54   -docbook              Output DocBook format.
  55   -html                 Output HTML format.
  56   -html5                Output HTML5 format.
  57   -list                 Output symbol list format. This is for use by docproc.
  58   -man                  Output troff manual page format. This is the default.
  59   -rst                  Output reStructuredText format.
  60   -text                 Output plain text format.
  61
  62 Output selection (mutually exclusive):
  63   -export               Only output documentation for symbols that have been
  64                         exported using EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL()
  65                         in any input FILE or -export-file FILE.
  66   -internal             Only output documentation for symbols that have NOT been
  67                         exported using EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL()
  68                         in any input FILE or -export-file FILE.
  69   -function NAME        Only output documentation for the given function(s)
  70                         or DOC: section title(s). All other functions and DOC:
  71                         sections are ignored. May be specified multiple times.
  72   -nofunction NAME      Do NOT output documentation for the given function(s);
  73                         only output documentation for the other functions and
  74                         DOC: sections. May be specified multiple times.
  75
  76 Output selection modifiers:
  77   -no-doc-sections      Do not output DOC: sections.
  78   -enable-lineno        Enable output of #define LINENO lines. Only works with
  79                         reStructuredText format.
  80   -export-file FILE     Specify an additional FILE in which to look for
  81                         EXPORT_SYMBOL() and EXPORT_SYMBOL_GPL(). To be used with
  82                         -export or -internal. May be specified multiple times.
  83
  84 Other parameters:
  85   -v                    Verbose output, more warnings and other information.
  86   -h                    Print this help.
  87
  88 EOF
  89     print $message;
  90     exit 1;
  91 }
  92
  93 #
  94 # format of comments.
  95 # In the following table, (...)? signifies optional structure.
  96 #                         (...)* signifies 0 or more structure elements
  97 # /**
  98 #  * function_name(:)? (- short description)?
  99 # (* @parameterx: (description of parameter x)?)*
 100 # (* a blank line)?
 101 #  * (Description:)? (Description of function)?
 102 #  * (section header: (section description)? )*
 103 #  (*)?*/
 104 #
 105 # So .. the trivial example would be:
 106 #
 107 # /**
 108 #  * my_function
 109 #  */
 110 #
 111 # If the Description: header tag is omitted, then there must be a blank line
 112 # after the last parameter specification.
 113 # e.g.
 114 # /**
 115 #  * my_function - does my stuff
 116 #  * @my_arg: its mine damnit
 117 #  *
 118 #  * Does my stuff explained.
 119 #  */
 120 #
 121 #  or, could also use:
 122 # /**
 123 #  * my_function - does my stuff
 124 #  * @my_arg: its mine damnit
 125 #  * Description: Does my stuff explained.
 126 #  */
 127 # etc.
 128 #
 129 # Besides functions you can also write documentation for structs, unions,
 130 # enums and typedefs. Instead of the function name you must write the name
 131 # of the declaration;  the struct/union/enum/typedef must always precede
 132 # the name. Nesting of declarations is not supported.
 133 # Use the argument mechanism to document members or constants.
 134 # e.g.
 135 # /**
 136 #  * struct my_struct - short description
 137 #  * @a: first member
 138 #  * @b: second member
 139 #  *
 140 #  * Longer description
 141 #  */
 142 # struct my_struct {
 143 #     int a;
 144 #     int b;
 145 # /* private: */
 146 #     int c;
 147 # };
 148 #
 149 # All descriptions can be multiline, except the short function description.
 150 #
 151 # For really longs structs, you can also describe arguments inside the
 152 # body of the struct.
 153 # eg.
 154 # /**
 155 #  * struct my_struct - short description
 156 #  * @a: first member
 157 #  * @b: second member
 158 #  *
 159 #  * Longer description
 160 #  */
 161 # struct my_struct {
 162 #     int a;
 163 #     int b;
 164 #     /**
 165 #      * @c: This is longer description of C
 166 #      *
 167 #      * You can use paragraphs to describe arguments
 168 #      * using this method.
 169 #      */
 170 #     int c;
 171 # };
 172 #
 173 # This should be use only for struct/enum members.
 174 #
 175 # You can also add additional sections. When documenting kernel functions you
 176 # should document the "Context:" of the function, e.g. whether the functions
 177 # can be called form interrupts. Unlike other sections you can end it with an
 178 # empty line.
 179 # A non-void function should have a "Return:" section describing the return
 180 # value(s).
 181 # Example-sections should contain the string EXAMPLE so that they are marked
 182 # appropriately in DocBook.
 183 #
 184 # Example:
 185 # /**
 186 #  * user_function - function that can only be called in user context
 187 #  * @a: some argument
 188 #  * Context: !in_interrupt()
 189 #  *
 190 #  * Some description
 191 #  * Example:
 192 #  *    user_function(22);
 193 #  */
 194 # ...
 195 #
 196 #
 197 # All descriptive text is further processed, scanning for the following special
 198 # patterns, which are highlighted appropriately.
 199 #
 200 # 'funcname()' - function
 201 # '$ENVVAR' - environmental variable
 202 # '&struct_name' - name of a structure (up to two words including 'struct')
 203 # '&struct_name.member' - name of a structure member
 204 # '@parameter' - name of a parameter
 205 # '%CONST' - name of a constant.
 206 # '``LITERAL``' - literal string without any spaces on it.
 207
 208 ## init lots of data
 209
 210 my $errors = 0;
 211 my $warnings = 0;
 212 my $anon_struct_union = 0;
 213
 214 # match expressions used to find embedded type information
 215 my $type_constant = '\b``([^\`]+)``\b';
 216 my $type_constant2 = '\%([-_\w]+)';
 217 my $type_func = '(\w+)\(\)';
 218 my $type_param = '\@(\w+(\.\.\.)?)';
 219 my $type_fp_param = '\@(\w+)\(\)';  # Special RST handling for func ptr params
 220 my $type_env = '(\$\w+)';
 221 my $type_enum = '\&(enum\s*([_\w]+))';
 222 my $type_struct = '\&(struct\s*([_\w]+))';
 223 my $type_typedef = '\&(typedef\s*([_\w]+))';
 224 my $type_union = '\&(union\s*([_\w]+))';
 225 my $type_member = '\&([_\w]+)(\.|->)([_\w]+)';
 226 my $type_fallback = '\&([_\w]+)';
 227 my $type_enum_xml = '\&amp;(enum\s*([_\w]+))';
 228 my $type_struct_xml = '\&amp;(struct\s*([_\w]+))';
 229 my $type_typedef_xml = '\&amp;(typedef\s*([_\w]+))';
 230 my $type_union_xml = '\&amp;(union\s*([_\w]+))';
 231 my $type_member_xml = '\&amp;([_\w]+)(\.|-\&gt;)([_\w]+)';
 232 my $type_fallback_xml = '\&amp([_\w]+)';
 233 my $type_member_func = $type_member . '\(\)';
 234
 235 # Output conversion substitutions.
 236 #  One for each output format
 237
 238 # these work fairly well
 239 my @highlights_html = (
 240                        [$type_constant, "<i>\$1</i>"],
 241                        [$type_constant2, "<i>\$1</i>"],
 242                        [$type_func, "<b>\$1</b>"],
 243                        [$type_enum_xml, "<i>\$1</i>"],
 244                        [$type_struct_xml, "<i>\$1</i>"],
 245                        [$type_typedef_xml, "<i>\$1</i>"],
 246                        [$type_union_xml, "<i>\$1</i>"],
 247                        [$type_env, "<b><i>\$1</i></b>"],
 248                        [$type_param, "<tt><b>\$1</b></tt>"],
 249                        [$type_member_xml, "<tt><i>\$1</i>\$2\$3</tt>"],
 250                        [$type_fallback_xml, "<i>\$1</i>"]
 251                       );
 252 my $local_lt = "\\\\\\\\lt:";
 253 my $local_gt = "\\\\\\\\gt:";
 254 my $blankline_html = $local_lt . "p" . $local_gt;       # was "<p>"
 255
 256 # html version 5
 257 my @highlights_html5 = (
 258                         [$type_constant, "<span class=\"const\">\$1</span>"],
 259                         [$type_constant2, "<span class=\"const\">\$1</span>"],
 260                         [$type_func, "<span class=\"func\">\$1</span>"],
 261                         [$type_enum_xml, "<span class=\"enum\">\$1</span>"],
 262                         [$type_struct_xml, "<span class=\"struct\">\$1</span>"],
 263                         [$type_typedef_xml, "<span class=\"typedef\">\$1</span>"],
 264                         [$type_union_xml, "<span class=\"union\">\$1</span>"],
 265                         [$type_env, "<span class=\"env\">\$1</span>"],
 266                         [$type_param, "<span class=\"param\">\$1</span>]"],
 267                         [$type_member_xml, "<span class=\"literal\"><span class=\"struct\">\$1</span>\$2<span class=\"member\">\$3</span></span>"],
 268                         [$type_fallback_xml, "<span class=\"struct\">\$1</span>"]
 269                        );
 270 my $blankline_html5 = $local_lt . "br /" . $local_gt;
 271
 272 # XML, docbook format
 273 my @highlights_xml = (
 274                       ["([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>"],
 275                       [$type_constant, "<constant>\$1</constant>"],
 276                       [$type_constant2, "<constant>\$1</constant>"],
 277                       [$type_enum_xml, "<type>\$1</type>"],
 278                       [$type_struct_xml, "<structname>\$1</structname>"],
 279                       [$type_typedef_xml, "<type>\$1</type>"],
 280                       [$type_union_xml, "<structname>\$1</structname>"],
 281                       [$type_param, "<parameter>\$1</parameter>"],
 282                       [$type_func, "<function>\$1</function>"],
 283                       [$type_env, "<envar>\$1</envar>"],
 284                       [$type_member_xml, "<literal><structname>\$1</structname>\$2<structfield>\$3</structfield></literal>"],
 285                       [$type_fallback_xml, "<structname>\$1</structname>"]
 286                      );
 287 my $blankline_xml = $local_lt . "/para" . $local_gt . $local_lt . "para" . $local_gt . "\n";
 288
 289 # gnome, docbook format
 290 my @highlights_gnome = (
 291                         [$type_constant, "<replaceable class=\"option\">\$1</replaceable>"],
 292                         [$type_constant2, "<replaceable class=\"option\">\$1</replaceable>"],
 293                         [$type_func, "<function>\$1</function>"],
 294                         [$type_enum, "<type>\$1</type>"],
 295                         [$type_struct, "<structname>\$1</structname>"],
 296                         [$type_typedef, "<type>\$1</type>"],
 297                         [$type_union, "<structname>\$1</structname>"],
 298                         [$type_env, "<envar>\$1</envar>"],
 299                         [$type_param, "<parameter>\$1</parameter>" ],
 300                         [$type_member, "<literal><structname>\$1</structname>\$2<structfield>\$3</structfield></literal>"],
 301                         [$type_fallback, "<structname>\$1</structname>"]
 302                        );
 303 my $blankline_gnome = "</para><para>\n";
 304
 305 # these are pretty rough
 306 my @highlights_man = (
 307                       [$type_constant, "\$1"],
 308                       [$type_constant2, "\$1"],
 309                       [$type_func, "\\\\fB\$1\\\\fP"],
 310                       [$type_enum, "\\\\fI\$1\\\\fP"],
 311                       [$type_struct, "\\\\fI\$1\\\\fP"],
 312                       [$type_typedef, "\\\\fI\$1\\\\fP"],
 313                       [$type_union, "\\\\fI\$1\\\\fP"],
 314                       [$type_param, "\\\\fI\$1\\\\fP"],
 315                       [$type_member, "\\\\fI\$1\$2\$3\\\\fP"],
 316                       [$type_fallback, "\\\\fI\$1\\\\fP"]
 317                      );
 318 my $blankline_man = "";
 319
 320 # text-mode
 321 my @highlights_text = (
 322                        [$type_constant, "\$1"],
 323                        [$type_constant2, "\$1"],
 324                        [$type_func, "\$1"],
 325                        [$type_enum, "\$1"],
 326                        [$type_struct, "\$1"],
 327                        [$type_typedef, "\$1"],
 328                        [$type_union, "\$1"],
 329                        [$type_param, "\$1"],
 330                        [$type_member, "\$1\$2\$3"],
 331                        [$type_fallback, "\$1"]
 332                       );
 333 my $blankline_text = "";
 334
 335 # rst-mode
 336 my @highlights_rst = (
 337                        [$type_constant, "``\$1``"],
 338                        [$type_constant2, "``\$1``"],
 339                        # Note: need to escape () to avoid func matching later
 340                        [$type_member_func, "\\:c\\:type\\:`\$1\$2\$3\\\\(\\\\) <\$1>`"],
 341                        [$type_member, "\\:c\\:type\\:`\$1\$2\$3 <\$1>`"],
 342                        [$type_fp_param, "**\$1\\\\(\\\\)**"],
 343                        [$type_func, "\\:c\\:func\\:`\$1()`"],
 344                        [$type_enum, "\\:c\\:type\\:`\$1 <\$2>`"],
 345                        [$type_struct, "\\:c\\:type\\:`\$1 <\$2>`"],
 346                        [$type_typedef, "\\:c\\:type\\:`\$1 <\$2>`"],
 347                        [$type_union, "\\:c\\:type\\:`\$1 <\$2>`"],
 348                        # in rst this can refer to any type
 349                        [$type_fallback, "\\:c\\:type\\:`\$1`"],
 350                        [$type_param, "**\$1**"]
 351                       );
 352 my $blankline_rst = "\n";
 353
 354 # list mode
 355 my @highlights_list = (
 356                        [$type_constant, "\$1"],
 357                        [$type_constant2, "\$1"],
 358                        [$type_func, "\$1"],
 359                        [$type_enum, "\$1"],
 360                        [$type_struct, "\$1"],
 361                        [$type_typedef, "\$1"],
 362                        [$type_union, "\$1"],
 363                        [$type_param, "\$1"],
 364                        [$type_member, "\$1"],
 365                        [$type_fallback, "\$1"]
 366                       );
 367 my $blankline_list = "";
 368
 369 # read arguments
 370 if ($#ARGV == -1) {
 371     usage();
 372 }
 373
 374 my $kernelversion;
 375 my $dohighlight = "";
 376
 377 my $verbose = 0;
 378 my $output_mode = "man";
 379 my $output_preformatted = 0;
 380 my $no_doc_sections = 0;
 381 my $enable_lineno = 0;
 382 my @highlights = @highlights_man;
 383 my $blankline = $blankline_man;
 384 my $modulename = "Kernel API";
 385
 386 use constant {
 387     OUTPUT_ALL          => 0, # output all symbols and doc sections
 388     OUTPUT_INCLUDE      => 1, # output only specified symbols
 389     OUTPUT_EXCLUDE      => 2, # output everything except specified symbols
 390     OUTPUT_EXPORTED     => 3, # output exported symbols
 391     OUTPUT_INTERNAL     => 4, # output non-exported symbols
 392 };
 393 my $output_selection = OUTPUT_ALL;
 394 my $show_not_found = 0;
 395
 396 my @export_file_list;
 397
 398 my @build_time;
 399 if (defined($ENV{'KBUILD_BUILD_TIMESTAMP'}) &&
 400     (my $seconds = `date -d"${ENV{'KBUILD_BUILD_TIMESTAMP'}}" +%s`) ne '') {
 401     @build_time = gmtime($seconds);
 402 } else {
 403     @build_time = localtime;
 404 }
 405
 406 my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
 407                 'July', 'August', 'September', 'October',
 408                 'November', 'December')[$build_time[4]] .
 409   " " . ($build_time[5]+1900);
 410
 411 # Essentially these are globals.
 412 # They probably want to be tidied up, made more localised or something.
 413 # CAVEAT EMPTOR!  Some of the others I localised may not want to be, which
 414 # could cause "use of undefined value" or other bugs.
 415 my ($function, %function_table, %parametertypes, $declaration_purpose);
 416 my $declaration_start_line;
 417 my ($type, $declaration_name, $return_type);
 418 my ($newsection, $newcontents, $prototype, $brcount, %source_map);
 419
 420 if (defined($ENV{'KBUILD_VERBOSE'})) {
 421         $verbose = "$ENV{'KBUILD_VERBOSE'}";
 422 }
 423
 424 # Generated docbook code is inserted in a template at a point where
 425 # docbook v3.1 requires a non-zero sequence of RefEntry's; see:
 426 # http://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
 427 # We keep track of number of generated entries and generate a dummy
 428 # if needs be to ensure the expanded template can be postprocessed
 429 # into html.
 430 my $section_counter = 0;
 431
 432 my $lineprefix="";
 433
 434 # Parser states
 435 use constant {
 436     STATE_NORMAL        => 0, # normal code
 437     STATE_NAME          => 1, # looking for function name
 438     STATE_FIELD         => 2, # scanning field start
 439     STATE_PROTO         => 3, # scanning prototype
 440     STATE_DOCBLOCK      => 4, # documentation block
 441     STATE_INLINE        => 5, # gathering documentation outside main block
 442 };
 443 my $state;
 444 my $in_doc_sect;
 445
 446 # Inline documentation state
 447 use constant {
 448     STATE_INLINE_NA     => 0, # not applicable ($state != STATE_INLINE)
 449     STATE_INLINE_NAME   => 1, # looking for member name (@foo:)
 450     STATE_INLINE_TEXT   => 2, # looking for member documentation
 451     STATE_INLINE_END    => 3, # done
 452     STATE_INLINE_ERROR  => 4, # error - Comment without header was found.
 453                               # Spit a warning as it's not
 454                               # proper kernel-doc and ignore the rest.
 455 };
 456 my $inline_doc_state;
 457
 458 #declaration types: can be
 459 # 'function', 'struct', 'union', 'enum', 'typedef'
 460 my $decl_type;
 461
 462 my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
 463 my $doc_end = '\*/';
 464 my $doc_com = '\s*\*\s*';
 465 my $doc_com_body = '\s*\* ?';
 466 my $doc_decl = $doc_com . '(\w+)';
 467 # @params and a strictly limited set of supported section names
 468 my $doc_sect = $doc_com .
 469     '\s*(\@[.\w]+|\@\.\.\.|description|context|returns?|notes?|examples?)\s*:(.*)';
 470 my $doc_content = $doc_com_body . '(.*)';
 471 my $doc_block = $doc_com . 'DOC:\s*(.*)?';
 472 my $doc_inline_start = '^\s*/\*\*\s*$';
 473 my $doc_inline_sect = '\s*\*\s*(@[\w\s]+):(.*)';
 474 my $doc_inline_end = '^\s*\*/\s*$';
 475 my $doc_inline_oneline = '^\s*/\*\*\s*(@[\w\s]+):\s*(.*)\s*\*/\s*$';
 476 my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
 477
 478 my %parameterdescs;
 479 my %parameterdesc_start_lines;
 480 my @parameterlist;
 481 my %sections;
 482 my @sectionlist;
 483 my %section_start_lines;
 484 my $sectcheck;
 485 my $struct_actual;
 486
 487 my $contents = "";
 488 my $new_start_line = 0;
 489
 490 # the canonical section names. see also $doc_sect above.
 491 my $section_default = "Description";    # default section
 492 my $section_intro = "Introduction";
 493 my $section = $section_default;
 494 my $section_context = "Context";
 495 my $section_return = "Return";
 496
 497 my $undescribed = "-- undescribed --";
 498
 499 reset_state();
 500
 501 while ($ARGV[0] =~ m/^-(.*)/) {
 502     my $cmd = shift @ARGV;
 503     if ($cmd eq "-html") {
 504         $output_mode = "html";
 505         @highlights = @highlights_html;
 506         $blankline = $blankline_html;
 507     } elsif ($cmd eq "-html5") {
 508         $output_mode = "html5";
 509         @highlights = @highlights_html5;
 510         $blankline = $blankline_html5;
 511     } elsif ($cmd eq "-man") {
 512         $output_mode = "man";
 513         @highlights = @highlights_man;
 514         $blankline = $blankline_man;
 515     } elsif ($cmd eq "-text") {
 516         $output_mode = "text";
 517         @highlights = @highlights_text;
 518         $blankline = $blankline_text;
 519     } elsif ($cmd eq "-rst") {
 520         $output_mode = "rst";
 521         @highlights = @highlights_rst;
 522         $blankline = $blankline_rst;
 523     } elsif ($cmd eq "-docbook") {
 524         $output_mode = "xml";
 525         @highlights = @highlights_xml;
 526         $blankline = $blankline_xml;
 527     } elsif ($cmd eq "-list") {
 528         $output_mode = "list";
 529         @highlights = @highlights_list;
 530         $blankline = $blankline_list;
 531     } elsif ($cmd eq "-gnome") {
 532         $output_mode = "gnome";
 533         @highlights = @highlights_gnome;
 534         $blankline = $blankline_gnome;
 535     } elsif ($cmd eq "-module") { # not needed for XML, inherits from calling document
 536         $modulename = shift @ARGV;
 537     } elsif ($cmd eq "-function") { # to only output specific functions
 538         $output_selection = OUTPUT_INCLUDE;
 539         $function = shift @ARGV;
 540         $function_table{$function} = 1;
 541     } elsif ($cmd eq "-nofunction") { # output all except specific functions
 542         $output_selection = OUTPUT_EXCLUDE;
 543         $function = shift @ARGV;
 544         $function_table{$function} = 1;
 545     } elsif ($cmd eq "-export") { # only exported symbols
 546         $output_selection = OUTPUT_EXPORTED;
 547         %function_table = ();
 548     } elsif ($cmd eq "-internal") { # only non-exported symbols
 549         $output_selection = OUTPUT_INTERNAL;
 550         %function_table = ();
 551     } elsif ($cmd eq "-export-file") {
 552         my $file = shift @ARGV;
 553         push(@export_file_list, $file);
 554     } elsif ($cmd eq "-v") {
 555         $verbose = 1;
 556     } elsif (($cmd eq "-h") || ($cmd eq "--help")) {
 557         usage();
 558     } elsif ($cmd eq '-no-doc-sections') {
 559             $no_doc_sections = 1;
 560     } elsif ($cmd eq '-enable-lineno') {
 561             $enable_lineno = 1;
 562     } elsif ($cmd eq '-show-not-found') {
 563         $show_not_found = 1;
 564     }
 565 }
 566
 567 # continue execution near EOF;
 568
 569 # get kernel version from env
 570 sub get_kernel_version() {
 571     my $version = 'unknown kernel version';
 572
 573     if (defined($ENV{'KERNELVERSION'})) {
 574         $version = $ENV{'KERNELVERSION'};
 575     }
 576     return $version;
 577 }
 578
 579 #
 580 sub print_lineno {
 581     my $lineno = shift;
 582     if ($enable_lineno && defined($lineno)) {
 583         print "#define LINENO " . $lineno . "\n";
 584     }
 585 }
 586 ##
 587 # dumps section contents to arrays/hashes intended for that purpose.
 588 #
 589 sub dump_section {
 590     my $file = shift;
 591     my $name = shift;
 592     my $contents = join "\n", @_;
 593
 594     if ($name =~ m/$type_param/) {
 595         $name = $1;
 596         $parameterdescs{$name} = $contents;
 597         $sectcheck = $sectcheck . $name . " ";
 598         $parameterdesc_start_lines{$name} = $new_start_line;
 599         $new_start_line = 0;
 600     } elsif ($name eq "@\.\.\.") {
 601         $name = "...";
 602         $parameterdescs{$name} = $contents;
 603         $sectcheck = $sectcheck . $name . " ";
 604         $parameterdesc_start_lines{$name} = $new_start_line;
 605         $new_start_line = 0;
 606     } else {
 607         if (defined($sections{$name}) && ($sections{$name} ne "")) {
 608             # Only warn on user specified duplicate section names.
 609             if ($name ne $section_default) {
 610                 print STDERR "${file}:$.: warning: duplicate section name '$name'\n";
 611                 ++$warnings;
 612             }
 613             $sections{$name} .= $contents;
 614         } else {
 615             $sections{$name} = $contents;
 616             push @sectionlist, $name;
 617             $section_start_lines{$name} = $new_start_line;
 618             $new_start_line = 0;
 619         }
 620     }
 621 }
 622
 623 ##
 624 # dump DOC: section after checking that it should go out
 625 #
 626 sub dump_doc_section {
 627     my $file = shift;
 628     my $name = shift;
 629     my $contents = join "\n", @_;
 630
 631     if ($no_doc_sections) {
 632         return;
 633     }
 634
 635     if (($output_selection == OUTPUT_ALL) ||
 636         ($output_selection == OUTPUT_INCLUDE &&
 637          defined($function_table{$name})) ||
 638         ($output_selection == OUTPUT_EXCLUDE &&
 639          !defined($function_table{$name})))
 640     {
 641         dump_section($file, $name, $contents);
 642         output_blockhead({'sectionlist' => \@sectionlist,
 643                           'sections' => \%sections,
 644                           'module' => $modulename,
 645                           'content-only' => ($output_selection != OUTPUT_ALL), });
 646     }
 647 }
 648
 649 ##
 650 # output function
 651 #
 652 # parameterdescs, a hash.
 653 #  function => "function name"
 654 #  parameterlist => @list of parameters
 655 #  parameterdescs => %parameter descriptions
 656 #  sectionlist => @list of sections
 657 #  sections => %section descriptions
 658 #
 659
 660 sub output_highlight {
 661     my $contents = join "\n",@_;
 662     my $line;
 663
 664 #   DEBUG
 665 #   if (!defined $contents) {
 666 #       use Carp;
 667 #       confess "output_highlight got called with no args?\n";
 668 #   }
 669
 670     if ($output_mode eq "html" || $output_mode eq "html5" ||
 671         $output_mode eq "xml") {
 672         $contents = local_unescape($contents);
 673         # convert data read & converted thru xml_escape() into &xyz; format:
 674         $contents =~ s/\\\\\\/\&/g;
 675     }
 676 #   print STDERR "contents b4:$contents\n";
 677     eval $dohighlight;
 678     die $@ if $@;
 679 #   print STDERR "contents af:$contents\n";
 680
 681 #   strip whitespaces when generating html5
 682     if ($output_mode eq "html5") {
 683         $contents =~ s/^\s+//;
 684         $contents =~ s/\s+$//;
 685     }
 686     foreach $line (split "\n", $contents) {
 687         if (! $output_preformatted) {
 688             $line =~ s/^\s*//;
 689         }
 690         if ($line eq ""){
 691             if (! $output_preformatted) {
 692                 print $lineprefix, local_unescape($blankline);
 693             }
 694         } else {
 695             $line =~ s/\\\\\\/\&/g;
 696             if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
 697                 print "\\&$line";
 698             } else {
 699                 print $lineprefix, $line;
 700             }
 701         }
 702         print "\n";
 703     }
 704 }
 705
 706 # output sections in html
 707 sub output_section_html(%) {
 708     my %args = %{$_[0]};
 709     my $section;
 710
 711     foreach $section (@{$args{'sectionlist'}}) {
 712         print "<h3>$section</h3>\n";
 713         print "<blockquote>\n";
 714         output_highlight($args{'sections'}{$section});
 715         print "</blockquote>\n";
 716     }
 717 }
 718
 719 # output enum in html
 720 sub output_enum_html(%) {
 721     my %args = %{$_[0]};
 722     my ($parameter);
 723     my $count;
 724     print "<h2>enum " . $args{'enum'} . "</h2>\n";
 725
 726     print "<b>enum " . $args{'enum'} . "</b> {<br>\n";
 727     $count = 0;
 728     foreach $parameter (@{$args{'parameterlist'}}) {
 729         print " <b>" . $parameter . "</b>";
 730         if ($count != $#{$args{'parameterlist'}}) {
 731             $count++;
 732             print ",\n";
 733         }
 734         print "<br>";
 735     }
 736     print "};<br>\n";
 737
 738     print "<h3>Constants</h3>\n";
 739     print "<dl>\n";
 740     foreach $parameter (@{$args{'parameterlist'}}) {
 741         print "<dt><b>" . $parameter . "</b>\n";
 742         print "<dd>";
 743         output_highlight($args{'parameterdescs'}{$parameter});
 744     }
 745     print "</dl>\n";
 746     output_section_html(@_);
 747     print "<hr>\n";
 748 }
 749
 750 # output typedef in html
 751 sub output_typedef_html(%) {
 752     my %args = %{$_[0]};
 753     my ($parameter);
 754     my $count;
 755     print "<h2>typedef " . $args{'typedef'} . "</h2>\n";
 756
 757     print "<b>typedef " . $args{'typedef'} . "</b>\n";
 758     output_section_html(@_);
 759     print "<hr>\n";
 760 }
 761
 762 # output struct in html
 763 sub output_struct_html(%) {
 764     my %args = %{$_[0]};
 765     my ($parameter);
 766
 767     print "<h2>" . $args{'type'} . " " . $args{'struct'} . " - " . $args{'purpose'} . "</h2>\n";
 768     print "<b>" . $args{'type'} . " " . $args{'struct'} . "</b> {<br>\n";
 769     foreach $parameter (@{$args{'parameterlist'}}) {
 770         if ($parameter =~ /^#/) {
 771                 print "$parameter<br>\n";
 772                 next;
 773         }
 774         my $parameter_name = $parameter;
 775         $parameter_name =~ s/\[.*//;
 776
 777         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 778         $type = $args{'parametertypes'}{$parameter};
 779         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 780             # pointer-to-function
 781             print "&nbsp; &nbsp; <i>$1</i><b>$parameter</b>) <i>($2)</i>;<br>\n";
 782         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
 783             # bitfield
 784             print "&nbsp; &nbsp; <i>$1</i> <b>$parameter</b>$2;<br>\n";
 785         } else {
 786             print "&nbsp; &nbsp; <i>$type</i> <b>$parameter</b>;<br>\n";
 787         }
 788     }
 789     print "};<br>\n";
 790
 791     print "<h3>Members</h3>\n";
 792     print "<dl>\n";
 793     foreach $parameter (@{$args{'parameterlist'}}) {
 794         ($parameter =~ /^#/) && next;
 795
 796         my $parameter_name = $parameter;
 797         $parameter_name =~ s/\[.*//;
 798
 799         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 800         print "<dt><b>" . $parameter . "</b>\n";
 801         print "<dd>";
 802         output_highlight($args{'parameterdescs'}{$parameter_name});
 803     }
 804     print "</dl>\n";
 805     output_section_html(@_);
 806     print "<hr>\n";
 807 }
 808
 809 # output function in html
 810 sub output_function_html(%) {
 811     my %args = %{$_[0]};
 812     my ($parameter, $section);
 813     my $count;
 814
 815     print "<h2>" . $args{'function'} . " - " . $args{'purpose'} . "</h2>\n";
 816     print "<i>" . $args{'functiontype'} . "</i>\n";
 817     print "<b>" . $args{'function'} . "</b>\n";
 818     print "(";
 819     $count = 0;
 820     foreach $parameter (@{$args{'parameterlist'}}) {
 821         $type = $args{'parametertypes'}{$parameter};
 822         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 823             # pointer-to-function
 824             print "<i>$1</i><b>$parameter</b>) <i>($2)</i>";
 825         } else {
 826             print "<i>" . $type . "</i> <b>" . $parameter . "</b>";
 827         }
 828         if ($count != $#{$args{'parameterlist'}}) {
 829             $count++;
 830             print ",\n";
 831         }
 832     }
 833     print ")\n";
 834
 835     print "<h3>Arguments</h3>\n";
 836     print "<dl>\n";
 837     foreach $parameter (@{$args{'parameterlist'}}) {
 838         my $parameter_name = $parameter;
 839         $parameter_name =~ s/\[.*//;
 840
 841         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 842         print "<dt><b>" . $parameter . "</b>\n";
 843         print "<dd>";
 844         output_highlight($args{'parameterdescs'}{$parameter_name});
 845     }
 846     print "</dl>\n";
 847     output_section_html(@_);
 848     print "<hr>\n";
 849 }
 850
 851 # output DOC: block header in html
 852 sub output_blockhead_html(%) {
 853     my %args = %{$_[0]};
 854     my ($parameter, $section);
 855     my $count;
 856
 857     foreach $section (@{$args{'sectionlist'}}) {
 858         print "<h3>$section</h3>\n";
 859         print "<ul>\n";
 860         output_highlight($args{'sections'}{$section});
 861         print "</ul>\n";
 862     }
 863     print "<hr>\n";
 864 }
 865
 866 # output sections in html5
 867 sub output_section_html5(%) {
 868     my %args = %{$_[0]};
 869     my $section;
 870
 871     foreach $section (@{$args{'sectionlist'}}) {
 872         print "<section>\n";
 873         print "<h1>$section</h1>\n";
 874         print "<p>\n";
 875         output_highlight($args{'sections'}{$section});
 876         print "</p>\n";
 877         print "</section>\n";
 878     }
 879 }
 880
 881 # output enum in html5
 882 sub output_enum_html5(%) {
 883     my %args = %{$_[0]};
 884     my ($parameter);
 885     my $count;
 886     my $html5id;
 887
 888     $html5id = $args{'enum'};
 889     $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
 890     print "<article class=\"enum\" id=\"enum:". $html5id . "\">";
 891     print "<h1>enum " . $args{'enum'} . "</h1>\n";
 892     print "<ol class=\"code\">\n";
 893     print "<li>";
 894     print "<span class=\"keyword\">enum</span> ";
 895     print "<span class=\"identifier\">" . $args{'enum'} . "</span> {";
 896     print "</li>\n";
 897     $count = 0;
 898     foreach $parameter (@{$args{'parameterlist'}}) {
 899         print "<li class=\"indent\">";
 900         print "<span class=\"param\">" . $parameter . "</span>";
 901         if ($count != $#{$args{'parameterlist'}}) {
 902             $count++;
 903             print ",";
 904         }
 905         print "</li>\n";
 906     }
 907     print "<li>};</li>\n";
 908     print "</ol>\n";
 909
 910     print "<section>\n";
 911     print "<h1>Constants</h1>\n";
 912     print "<dl>\n";
 913     foreach $parameter (@{$args{'parameterlist'}}) {
 914         print "<dt>" . $parameter . "</dt>\n";
 915         print "<dd>";
 916         output_highlight($args{'parameterdescs'}{$parameter});
 917         print "</dd>\n";
 918     }
 919     print "</dl>\n";
 920     print "</section>\n";
 921     output_section_html5(@_);
 922     print "</article>\n";
 923 }
 924
 925 # output typedef in html5
 926 sub output_typedef_html5(%) {
 927     my %args = %{$_[0]};
 928     my ($parameter);
 929     my $count;
 930     my $html5id;
 931
 932     $html5id = $args{'typedef'};
 933     $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
 934     print "<article class=\"typedef\" id=\"typedef:" . $html5id . "\">\n";
 935     print "<h1>typedef " . $args{'typedef'} . "</h1>\n";
 936
 937     print "<ol class=\"code\">\n";
 938     print "<li>";
 939     print "<span class=\"keyword\">typedef</span> ";
 940     print "<span class=\"identifier\">" . $args{'typedef'} . "</span>";
 941     print "</li>\n";
 942     print "</ol>\n";
 943     output_section_html5(@_);
 944     print "</article>\n";
 945 }
 946
 947 # output struct in html5
 948 sub output_struct_html5(%) {
 949     my %args = %{$_[0]};
 950     my ($parameter);
 951     my $html5id;
 952
 953     $html5id = $args{'struct'};
 954     $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
 955     print "<article class=\"struct\" id=\"struct:" . $html5id . "\">\n";
 956     print "<hgroup>\n";
 957     print "<h1>" . $args{'type'} . " " . $args{'struct'} . "</h1>";
 958     print "<h2>". $args{'purpose'} . "</h2>\n";
 959     print "</hgroup>\n";
 960     print "<ol class=\"code\">\n";
 961     print "<li>";
 962     print "<span class=\"type\">" . $args{'type'} . "</span> ";
 963     print "<span class=\"identifier\">" . $args{'struct'} . "</span> {";
 964     print "</li>\n";
 965     foreach $parameter (@{$args{'parameterlist'}}) {
 966         print "<li class=\"indent\">";
 967         if ($parameter =~ /^#/) {
 968                 print "<span class=\"param\">" . $parameter ."</span>\n";
 969                 print "</li>\n";
 970                 next;
 971         }
 972         my $parameter_name = $parameter;
 973         $parameter_name =~ s/\[.*//;
 974
 975         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 976         $type = $args{'parametertypes'}{$parameter};
 977         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 978             # pointer-to-function
 979             print "<span class=\"type\">$1</span> ";
 980             print "<span class=\"param\">$parameter</span>";
 981             print "<span class=\"type\">)</span> ";
 982             print "(<span class=\"args\">$2</span>);";
 983         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
 984             # bitfield
 985             print "<span class=\"type\">$1</span> ";
 986             print "<span class=\"param\">$parameter</span>";
 987             print "<span class=\"bits\">$2</span>;";
 988         } else {
 989             print "<span class=\"type\">$type</span> ";
 990             print "<span class=\"param\">$parameter</span>;";
 991         }
 992         print "</li>\n";
 993     }
 994     print "<li>};</li>\n";
 995     print "</ol>\n";
 996
 997     print "<section>\n";
 998     print "<h1>Members</h1>\n";
 999     print "<dl>\n";
1000     foreach $parameter (@{$args{'parameterlist'}}) {
1001         ($parameter =~ /^#/) && next;
1002
1003         my $parameter_name = $parameter;
1004         $parameter_name =~ s/\[.*//;
1005
1006         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1007         print "<dt>" . $parameter . "</dt>\n";
1008         print "<dd>";
1009         output_highlight($args{'parameterdescs'}{$parameter_name});
1010         print "</dd>\n";
1011     }
1012     print "</dl>\n";
1013     print "</section>\n";
1014     output_section_html5(@_);
1015     print "</article>\n";
1016 }
1017
1018 # output function in html5
1019 sub output_function_html5(%) {
1020     my %args = %{$_[0]};
1021     my ($parameter, $section);
1022     my $count;
1023     my $html5id;
1024
1025     $html5id = $args{'function'};
1026     $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
1027     print "<article class=\"function\" id=\"func:". $html5id . "\">\n";
1028     print "<hgroup>\n";
1029     print "<h1>" . $args{'function'} . "</h1>";
1030     print "<h2>" . $args{'purpose'} . "</h2>\n";
1031     print "</hgroup>\n";
1032     print "<ol class=\"code\">\n";
1033     print "<li>";
1034     print "<span class=\"type\">" . $args{'functiontype'} . "</span> ";
1035     print "<span class=\"identifier\">" . $args{'function'} . "</span> (";
1036     print "</li>";
1037     $count = 0;
1038     foreach $parameter (@{$args{'parameterlist'}}) {
1039         print "<li class=\"indent\">";
1040         $type = $args{'parametertypes'}{$parameter};
1041         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1042             # pointer-to-function
1043             print "<span class=\"type\">$1</span> ";
1044             print "<span class=\"param\">$parameter</span>";
1045             print "<span class=\"type\">)</span> ";
1046             print "(<span class=\"args\">$2</span>)";
1047         } else {
1048             print "<span class=\"type\">$type</span> ";
1049             print "<span class=\"param\">$parameter</span>";
1050         }
1051         if ($count != $#{$args{'parameterlist'}}) {
1052             $count++;
1053             print ",";
1054         }
1055         print "</li>\n";
1056     }
1057     print "<li>)</li>\n";
1058     print "</ol>\n";
1059
1060     print "<section>\n";
1061     print "<h1>Arguments</h1>\n";
1062     print "<p>\n";
1063     print "<dl>\n";
1064     foreach $parameter (@{$args{'parameterlist'}}) {
1065         my $parameter_name = $parameter;
1066         $parameter_name =~ s/\[.*//;
1067
1068         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1069         print "<dt>" . $parameter . "</dt>\n";
1070         print "<dd>";
1071         output_highlight($args{'parameterdescs'}{$parameter_name});
1072         print "</dd>\n";
1073     }
1074     print "</dl>\n";
1075     print "</section>\n";
1076     output_section_html5(@_);
1077     print "</article>\n";
1078 }
1079
1080 # output DOC: block header in html5
1081 sub output_blockhead_html5(%) {
1082     my %args = %{$_[0]};
1083     my ($parameter, $section);
1084     my $count;
1085     my $html5id;
1086
1087     foreach $section (@{$args{'sectionlist'}}) {
1088         $html5id = $section;
1089         $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
1090         print "<article class=\"doc\" id=\"doc:". $html5id . "\">\n";
1091         print "<h1>$section</h1>\n";
1092         print "<p>\n";
1093         output_highlight($args{'sections'}{$section});
1094         print "</p>\n";
1095     }
1096     print "</article>\n";
1097 }
1098
1099 sub output_section_xml(%) {
1100     my %args = %{$_[0]};
1101     my $section;
1102     # print out each section
1103     $lineprefix="   ";
1104     foreach $section (@{$args{'sectionlist'}}) {
1105         print "<refsect1>\n";
1106         print "<title>$section</title>\n";
1107         if ($section =~ m/EXAMPLE/i) {
1108             print "<informalexample><programlisting>\n";
1109             $output_preformatted = 1;
1110         } else {
1111             print "<para>\n";
1112         }
1113         output_highlight($args{'sections'}{$section});
1114         $output_preformatted = 0;
1115         if ($section =~ m/EXAMPLE/i) {
1116             print "</programlisting></informalexample>\n";
1117         } else {
1118             print "</para>\n";
1119         }
1120         print "</refsect1>\n";
1121     }
1122 }
1123
1124 # output function in XML DocBook
1125 sub output_function_xml(%) {
1126     my %args = %{$_[0]};
1127     my ($parameter, $section);
1128     my $count;
1129     my $id;
1130
1131     $id = "API-" . $args{'function'};
1132     $id =~ s/[^A-Za-z0-9]/-/g;
1133
1134     print "<refentry id=\"$id\">\n";
1135     print "<refentryinfo>\n";
1136     print " <title>LINUX</title>\n";
1137     print " <productname>Kernel Hackers Manual</productname>\n";
1138     print " <date>$man_date</date>\n";
1139     print "</refentryinfo>\n";
1140     print "<refmeta>\n";
1141     print " <refentrytitle><phrase>" . $args{'function'} . "</phrase></refentrytitle>\n";
1142     print " <manvolnum>9</manvolnum>\n";
1143     print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
1144     print "</refmeta>\n";
1145     print "<refnamediv>\n";
1146     print " <refname>" . $args{'function'} . "</refname>\n";
1147     print " <refpurpose>\n";
1148     print "  ";
1149     output_highlight ($args{'purpose'});
1150     print " </refpurpose>\n";
1151     print "</refnamediv>\n";
1152
1153     print "<refsynopsisdiv>\n";
1154     print " <title>Synopsis</title>\n";
1155     print "  <funcsynopsis><funcprototype>\n";
1156     print "   <funcdef>" . $args{'functiontype'} . " ";
1157     print "<function>" . $args{'function'} . " </function></funcdef>\n";
1158
1159     $count = 0;
1160     if ($#{$args{'parameterlist'}} >= 0) {
1161         foreach $parameter (@{$args{'parameterlist'}}) {
1162             $type = $args{'parametertypes'}{$parameter};
1163             if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1164                 # pointer-to-function
1165                 print "   <paramdef>$1<parameter>$parameter</parameter>)\n";
1166                 print "     <funcparams>$2</funcparams></paramdef>\n";
1167             } else {
1168                 print "   <paramdef>" . $type;
1169                 print " <parameter>$parameter</parameter></paramdef>\n";
1170             }
1171         }
1172     } else {
1173         print "  <void/>\n";
1174     }
1175     print "  </funcprototype></funcsynopsis>\n";
1176     print "</refsynopsisdiv>\n";
1177
1178     # print parameters
1179     print "<refsect1>\n <title>Arguments</title>\n";
1180     if ($#{$args{'parameterlist'}} >= 0) {
1181         print " <variablelist>\n";
1182         foreach $parameter (@{$args{'parameterlist'}}) {
1183             my $parameter_name = $parameter;
1184             $parameter_name =~ s/\[.*//;
1185             $type = $args{'parametertypes'}{$parameter};
1186
1187             print "  <varlistentry>\n   <term><parameter>$type $parameter</parameter></term>\n";
1188             print "   <listitem>\n    <para>\n";
1189             $lineprefix="     ";
1190             output_highlight($args{'parameterdescs'}{$parameter_name});
1191             print "    </para>\n   </listitem>\n  </varlistentry>\n";
1192         }
1193         print " </variablelist>\n";
1194     } else {
1195         print " <para>\n  None\n </para>\n";
1196     }
1197     print "</refsect1>\n";
1198
1199     output_section_xml(@_);
1200     print "</refentry>\n\n";
1201 }
1202
1203 # output struct in XML DocBook
1204 sub output_struct_xml(%) {
1205     my %args = %{$_[0]};
1206     my ($parameter, $section);
1207     my $id;
1208
1209     $id = "API-struct-" . $args{'struct'};
1210     $id =~ s/[^A-Za-z0-9]/-/g;
1211
1212     print "<refentry id=\"$id\">\n";
1213     print "<refentryinfo>\n";
1214     print " <title>LINUX</title>\n";
1215     print " <productname>Kernel Hackers Manual</productname>\n";
1216     print " <date>$man_date</date>\n";
1217     print "</refentryinfo>\n";
1218     print "<refmeta>\n";
1219     print " <refentrytitle><phrase>" . $args{'type'} . " " . $args{'struct'} . "</phrase></refentrytitle>\n";
1220     print " <manvolnum>9</manvolnum>\n";
1221     print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
1222     print "</refmeta>\n";
1223     print "<refnamediv>\n";
1224     print " <refname>" . $args{'type'} . " " . $args{'struct'} . "</refname>\n";
1225     print " <refpurpose>\n";
1226     print "  ";
1227     output_highlight ($args{'purpose'});
1228     print " </refpurpose>\n";
1229     print "</refnamediv>\n";
1230
1231     print "<refsynopsisdiv>\n";
1232     print " <title>Synopsis</title>\n";
1233     print "  <programlisting>\n";
1234     print $args{'type'} . " " . $args{'struct'} . " {\n";
1235     foreach $parameter (@{$args{'parameterlist'}}) {
1236         if ($parameter =~ /^#/) {
1237             my $prm = $parameter;
1238             # convert data read & converted thru xml_escape() into &xyz; format:
1239             # This allows us to have #define macros interspersed in a struct.
1240             $prm =~ s/\\\\\\/\&/g;
1241             print "$prm\n";
1242             next;
1243         }
1244
1245         my $parameter_name = $parameter;
1246         $parameter_name =~ s/\[.*//;
1247
1248         defined($args{'parameterdescs'}{$parameter_name}) || next;
1249         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1250         $type = $args{'parametertypes'}{$parameter};
1251         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1252             # pointer-to-function
1253             print "  $1 $parameter) ($2);\n";
1254         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1255             # bitfield
1256             print "  $1 $parameter$2;\n";
1257         } else {
1258             print "  " . $type . " " . $parameter . ";\n";
1259         }
1260     }
1261     print "};";
1262     print "  </programlisting>\n";
1263     print "</refsynopsisdiv>\n";
1264
1265     print " <refsect1>\n";
1266     print "  <title>Members</title>\n";
1267
1268     if ($#{$args{'parameterlist'}} >= 0) {
1269     print "  <variablelist>\n";
1270     foreach $parameter (@{$args{'parameterlist'}}) {
1271       ($parameter =~ /^#/) && next;
1272
1273       my $parameter_name = $parameter;
1274       $parameter_name =~ s/\[.*//;
1275
1276       defined($args{'parameterdescs'}{$parameter_name}) || next;
1277       ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1278       $type = $args{'parametertypes'}{$parameter};
1279       print "    <varlistentry>";
1280       print "      <term><literal>$type $parameter</literal></term>\n";
1281       print "      <listitem><para>\n";
1282       output_highlight($args{'parameterdescs'}{$parameter_name});
1283       print "      </para></listitem>\n";
1284       print "    </varlistentry>\n";
1285     }
1286     print "  </variablelist>\n";
1287     } else {
1288         print " <para>\n  None\n </para>\n";
1289     }
1290     print " </refsect1>\n";
1291
1292     output_section_xml(@_);
1293
1294     print "</refentry>\n\n";
1295 }
1296
1297 # output enum in XML DocBook
1298 sub output_enum_xml(%) {
1299     my %args = %{$_[0]};
1300     my ($parameter, $section);
1301     my $count;
1302     my $id;
1303
1304     $id = "API-enum-" . $args{'enum'};
1305     $id =~ s/[^A-Za-z0-9]/-/g;
1306
1307     print "<refentry id=\"$id\">\n";
1308     print "<refentryinfo>\n";
1309     print " <title>LINUX</title>\n";
1310     print " <productname>Kernel Hackers Manual</productname>\n";
1311     print " <date>$man_date</date>\n";
1312     print "</refentryinfo>\n";
1313     print "<refmeta>\n";
1314     print " <refentrytitle><phrase>enum " . $args{'enum'} . "</phrase></refentrytitle>\n";
1315     print " <manvolnum>9</manvolnum>\n";
1316     print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
1317     print "</refmeta>\n";
1318     print "<refnamediv>\n";
1319     print " <refname>enum " . $args{'enum'} . "</refname>\n";
1320     print " <refpurpose>\n";
1321     print "  ";
1322     output_highlight ($args{'purpose'});
1323     print " </refpurpose>\n";
1324     print "</refnamediv>\n";
1325
1326     print "<refsynopsisdiv>\n";
1327     print " <title>Synopsis</title>\n";
1328     print "  <programlisting>\n";
1329     print "enum " . $args{'enum'} . " {\n";
1330     $count = 0;
1331     foreach $parameter (@{$args{'parameterlist'}}) {
1332         print "  $parameter";
1333         if ($count != $#{$args{'parameterlist'}}) {
1334             $count++;
1335             print ",";
1336         }
1337         print "\n";
1338     }
1339     print "};";
1340     print "  </programlisting>\n";
1341     print "</refsynopsisdiv>\n";
1342
1343     print "<refsect1>\n";
1344     print " <title>Constants</title>\n";
1345     print "  <variablelist>\n";
1346     foreach $parameter (@{$args{'parameterlist'}}) {
1347       my $parameter_name = $parameter;
1348       $parameter_name =~ s/\[.*//;
1349
1350       print "    <varlistentry>";
1351       print "      <term>$parameter</term>\n";
1352       print "      <listitem><para>\n";
1353       output_highlight($args{'parameterdescs'}{$parameter_name});
1354       print "      </para></listitem>\n";
1355       print "    </varlistentry>\n";
1356     }
1357     print "  </variablelist>\n";
1358     print "</refsect1>\n";
1359
1360     output_section_xml(@_);
1361
1362     print "</refentry>\n\n";
1363 }
1364
1365 # output typedef in XML DocBook
1366 sub output_typedef_xml(%) {
1367     my %args = %{$_[0]};
1368     my ($parameter, $section);
1369     my $id;
1370
1371     $id = "API-typedef-" . $args{'typedef'};
1372     $id =~ s/[^A-Za-z0-9]/-/g;
1373
1374     print "<refentry id=\"$id\">\n";
1375     print "<refentryinfo>\n";
1376     print " <title>LINUX</title>\n";
1377     print " <productname>Kernel Hackers Manual</productname>\n";
1378     print " <date>$man_date</date>\n";
1379     print "</refentryinfo>\n";
1380     print "<refmeta>\n";
1381     print " <refentrytitle><phrase>typedef " . $args{'typedef'} . "</phrase></refentrytitle>\n";
1382     print " <manvolnum>9</manvolnum>\n";
1383     print "</refmeta>\n";
1384     print "<refnamediv>\n";
1385     print " <refname>typedef " . $args{'typedef'} . "</refname>\n";
1386     print " <refpurpose>\n";
1387     print "  ";
1388     output_highlight ($args{'purpose'});
1389     print " </refpurpose>\n";
1390     print "</refnamediv>\n";
1391
1392     print "<refsynopsisdiv>\n";
1393     print " <title>Synopsis</title>\n";
1394     print "  <synopsis>typedef " . $args{'typedef'} . ";</synopsis>\n";
1395     print "</refsynopsisdiv>\n";
1396
1397     output_section_xml(@_);
1398
1399     print "</refentry>\n\n";
1400 }
1401
1402 # output in XML DocBook
1403 sub output_blockhead_xml(%) {
1404     my %args = %{$_[0]};
1405     my ($parameter, $section);
1406     my $count;
1407
1408     my $id = $args{'module'};
1409     $id =~ s/[^A-Za-z0-9]/-/g;
1410
1411     # print out each section
1412     $lineprefix="   ";
1413     foreach $section (@{$args{'sectionlist'}}) {
1414         if (!$args{'content-only'}) {
1415                 print "<refsect1>\n <title>$section</title>\n";
1416         }
1417         if ($section =~ m/EXAMPLE/i) {
1418             print "<example><para>\n";
1419             $output_preformatted = 1;
1420         } else {
1421             print "<para>\n";
1422         }
1423         output_highlight($args{'sections'}{$section});
1424         $output_preformatted = 0;
1425         if ($section =~ m/EXAMPLE/i) {
1426             print "</para></example>\n";
1427         } else {
1428             print "</para>";
1429         }
1430         if (!$args{'content-only'}) {
1431                 print "\n</refsect1>\n";
1432         }
1433     }
1434
1435     print "\n\n";
1436 }
1437
1438 # output in XML DocBook
1439 sub output_function_gnome {
1440     my %args = %{$_[0]};
1441     my ($parameter, $section);
1442     my $count;
1443     my $id;
1444
1445     $id = $args{'module'} . "-" . $args{'function'};
1446     $id =~ s/[^A-Za-z0-9]/-/g;
1447
1448     print "<sect2>\n";
1449     print " <title id=\"$id\">" . $args{'function'} . "</title>\n";
1450
1451     print "  <funcsynopsis>\n";
1452     print "   <funcdef>" . $args{'functiontype'} . " ";
1453     print "<function>" . $args{'function'} . " ";
1454     print "</function></funcdef>\n";
1455
1456     $count = 0;
1457     if ($#{$args{'parameterlist'}} >= 0) {
1458         foreach $parameter (@{$args{'parameterlist'}}) {
1459             $type = $args{'parametertypes'}{$parameter};
1460             if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1461                 # pointer-to-function
1462                 print "   <paramdef>$1 <parameter>$parameter</parameter>)\n";
1463                 print "     <funcparams>$2</funcparams></paramdef>\n";
1464             } else {
1465                 print "   <paramdef>" . $type;
1466                 print " <parameter>$parameter</parameter></paramdef>\n";
1467             }
1468         }
1469     } else {
1470         print "  <void>\n";
1471     }
1472     print "  </funcsynopsis>\n";
1473     if ($#{$args{'parameterlist'}} >= 0) {
1474         print " <informaltable pgwide=\"1\" frame=\"none\" role=\"params\">\n";
1475         print "<tgroup cols=\"2\">\n";
1476         print "<colspec colwidth=\"2*\">\n";
1477         print "<colspec colwidth=\"8*\">\n";
1478         print "<tbody>\n";
1479         foreach $parameter (@{$args{'parameterlist'}}) {
1480             my $parameter_name = $parameter;
1481             $parameter_name =~ s/\[.*//;
1482
1483             print "  <row><entry align=\"right\"><parameter>$parameter</parameter></entry>\n";
1484             print "   <entry>\n";
1485             $lineprefix="     ";
1486             output_highlight($args{'parameterdescs'}{$parameter_name});
1487             print "    </entry></row>\n";
1488         }
1489         print " </tbody></tgroup></informaltable>\n";
1490     } else {
1491         print " <para>\n  None\n </para>\n";
1492     }
1493
1494     # print out each section
1495     $lineprefix="   ";
1496     foreach $section (@{$args{'sectionlist'}}) {
1497         print "<simplesect>\n <title>$section</title>\n";
1498         if ($section =~ m/EXAMPLE/i) {
1499             print "<example><programlisting>\n";
1500             $output_preformatted = 1;
1501         } else {
1502         }
1503         print "<para>\n";
1504         output_highlight($args{'sections'}{$section});
1505         $output_preformatted = 0;
1506         print "</para>\n";
1507         if ($section =~ m/EXAMPLE/i) {
1508             print "</programlisting></example>\n";
1509         } else {
1510         }
1511         print " </simplesect>\n";
1512     }
1513
1514     print "</sect2>\n\n";
1515 }
1516
1517 ##
1518 # output function in man
1519 sub output_function_man(%) {
1520     my %args = %{$_[0]};
1521     my ($parameter, $section);
1522     my $count;
1523
1524     print ".TH \"$args{'function'}\" 9 \"$args{'function'}\" \"$man_date\" \"Kernel Hacker's Manual\" LINUX\n";
1525
1526     print ".SH NAME\n";
1527     print $args{'function'} . " \\- " . $args{'purpose'} . "\n";
1528
1529     print ".SH SYNOPSIS\n";
1530     if ($args{'functiontype'} ne "") {
1531         print ".B \"" . $args{'functiontype'} . "\" " . $args{'function'} . "\n";
1532     } else {
1533         print ".B \"" . $args{'function'} . "\n";
1534     }
1535     $count = 0;
1536     my $parenth = "(";
1537     my $post = ",";
1538     foreach my $parameter (@{$args{'parameterlist'}}) {
1539         if ($count == $#{$args{'parameterlist'}}) {
1540             $post = ");";
1541         }
1542         $type = $args{'parametertypes'}{$parameter};
1543         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1544             # pointer-to-function
1545             print ".BI \"" . $parenth . $1 . "\" " . $parameter . " \") (" . $2 . ")" . $post . "\"\n";
1546         } else {
1547             $type =~ s/([^\*])$/$1 /;
1548             print ".BI \"" . $parenth . $type . "\" " . $parameter . " \"" . $post . "\"\n";
1549         }
1550         $count++;
1551         $parenth = "";
1552     }
1553
1554     print ".SH ARGUMENTS\n";
1555     foreach $parameter (@{$args{'parameterlist'}}) {
1556         my $parameter_name = $parameter;
1557         $parameter_name =~ s/\[.*//;
1558
1559         print ".IP \"" . $parameter . "\" 12\n";
1560         output_highlight($args{'parameterdescs'}{$parameter_name});
1561     }
1562     foreach $section (@{$args{'sectionlist'}}) {
1563         print ".SH \"", uc $section, "\"\n";
1564         output_highlight($args{'sections'}{$section});
1565     }
1566 }
1567
1568 ##
1569 # output enum in man
1570 sub output_enum_man(%) {
1571     my %args = %{$_[0]};
1572     my ($parameter, $section);
1573     my $count;
1574
1575     print ".TH \"$args{'module'}\" 9 \"enum $args{'enum'}\" \"$man_date\" \"API Manual\" LINUX\n";
1576
1577     print ".SH NAME\n";
1578     print "enum " . $args{'enum'} . " \\- " . $args{'purpose'} . "\n";
1579
1580     print ".SH SYNOPSIS\n";
1581     print "enum " . $args{'enum'} . " {\n";
1582     $count = 0;
1583     foreach my $parameter (@{$args{'parameterlist'}}) {
1584         print ".br\n.BI \"    $parameter\"\n";
1585         if ($count == $#{$args{'parameterlist'}}) {
1586             print "\n};\n";
1587             last;
1588         }
1589         else {
1590             print ", \n.br\n";
1591         }
1592         $count++;
1593     }
1594
1595     print ".SH Constants\n";
1596     foreach $parameter (@{$args{'parameterlist'}}) {
1597         my $parameter_name = $parameter;
1598         $parameter_name =~ s/\[.*//;
1599
1600         print ".IP \"" . $parameter . "\" 12\n";
1601         output_highlight($args{'parameterdescs'}{$parameter_name});
1602     }
1603     foreach $section (@{$args{'sectionlist'}}) {
1604         print ".SH \"$section\"\n";
1605         output_highlight($args{'sections'}{$section});
1606     }
1607 }
1608
1609 ##
1610 # output struct in man
1611 sub output_struct_man(%) {
1612     my %args = %{$_[0]};
1613     my ($parameter, $section);
1614
1615     print ".TH \"$args{'module'}\" 9 \"" . $args{'type'} . " " . $args{'struct'} . "\" \"$man_date\" \"API Manual\" LINUX\n";
1616
1617     print ".SH NAME\n";
1618     print $args{'type'} . " " . $args{'struct'} . " \\- " . $args{'purpose'} . "\n";
1619
1620     print ".SH SYNOPSIS\n";
1621     print $args{'type'} . " " . $args{'struct'} . " {\n.br\n";
1622
1623     foreach my $parameter (@{$args{'parameterlist'}}) {
1624         if ($parameter =~ /^#/) {
1625             print ".BI \"$parameter\"\n.br\n";
1626             next;
1627         }
1628         my $parameter_name = $parameter;
1629         $parameter_name =~ s/\[.*//;
1630
1631         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1632         $type = $args{'parametertypes'}{$parameter};
1633         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1634             # pointer-to-function
1635             print ".BI \"    " . $1 . "\" " . $parameter . " \") (" . $2 . ")" . "\"\n;\n";
1636         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1637             # bitfield
1638             print ".BI \"    " . $1 . "\ \" " . $parameter . $2 . " \"" . "\"\n;\n";
1639         } else {
1640             $type =~ s/([^\*])$/$1 /;
1641             print ".BI \"    " . $type . "\" " . $parameter . " \"" . "\"\n;\n";
1642         }
1643         print "\n.br\n";
1644     }
1645     print "};\n.br\n";
1646
1647     print ".SH Members\n";
1648     foreach $parameter (@{$args{'parameterlist'}}) {
1649         ($parameter =~ /^#/) && next;
1650
1651         my $parameter_name = $parameter;
1652         $parameter_name =~ s/\[.*//;
1653
1654         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1655         print ".IP \"" . $parameter . "\" 12\n";
1656         output_highlight($args{'parameterdescs'}{$parameter_name});
1657     }
1658     foreach $section (@{$args{'sectionlist'}}) {
1659         print ".SH \"$section\"\n";
1660         output_highlight($args{'sections'}{$section});
1661     }
1662 }
1663
1664 ##
1665 # output typedef in man
1666 sub output_typedef_man(%) {
1667     my %args = %{$_[0]};
1668     my ($parameter, $section);
1669
1670     print ".TH \"$args{'module'}\" 9 \"$args{'typedef'}\" \"$man_date\" \"API Manual\" LINUX\n";
1671
1672     print ".SH NAME\n";
1673     print "typedef " . $args{'typedef'} . " \\- " . $args{'purpose'} . "\n";
1674
1675     foreach $section (@{$args{'sectionlist'}}) {
1676         print ".SH \"$section\"\n";
1677         output_highlight($args{'sections'}{$section});
1678     }
1679 }
1680
1681 sub output_blockhead_man(%) {
1682     my %args = %{$_[0]};
1683     my ($parameter, $section);
1684     my $count;
1685
1686     print ".TH \"$args{'module'}\" 9 \"$args{'module'}\" \"$man_date\" \"API Manual\" LINUX\n";
1687
1688     foreach $section (@{$args{'sectionlist'}}) {
1689         print ".SH \"$section\"\n";
1690         output_highlight($args{'sections'}{$section});
1691     }
1692 }
1693
1694 ##
1695 # output in text
1696 sub output_function_text(%) {
1697     my %args = %{$_[0]};
1698     my ($parameter, $section);
1699     my $start;
1700
1701     print "Name:\n\n";
1702     print $args{'function'} . " - " . $args{'purpose'} . "\n";
1703
1704     print "\nSynopsis:\n\n";
1705     if ($args{'functiontype'} ne "") {
1706         $start = $args{'functiontype'} . " " . $args{'function'} . " (";
1707     } else {
1708         $start = $args{'function'} . " (";
1709     }
1710     print $start;
1711
1712     my $count = 0;
1713     foreach my $parameter (@{$args{'parameterlist'}}) {
1714         $type = $args{'parametertypes'}{$parameter};
1715         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1716             # pointer-to-function
1717             print $1 . $parameter . ") (" . $2;
1718         } else {
1719             print $type . " " . $parameter;
1720         }
1721         if ($count != $#{$args{'parameterlist'}}) {
1722             $count++;
1723             print ",\n";
1724             print " " x length($start);
1725         } else {
1726             print ");\n\n";
1727         }
1728     }
1729
1730     print "Arguments:\n\n";
1731     foreach $parameter (@{$args{'parameterlist'}}) {
1732         my $parameter_name = $parameter;
1733         $parameter_name =~ s/\[.*//;
1734
1735         print $parameter . "\n\t" . $args{'parameterdescs'}{$parameter_name} . "\n";
1736     }
1737     output_section_text(@_);
1738 }
1739
1740 #output sections in text
1741 sub output_section_text(%) {
1742     my %args = %{$_[0]};
1743     my $section;
1744
1745     print "\n";
1746     foreach $section (@{$args{'sectionlist'}}) {
1747         print "$section:\n\n";
1748         output_highlight($args{'sections'}{$section});
1749     }
1750     print "\n\n";
1751 }
1752
1753 # output enum in text
1754 sub output_enum_text(%) {
1755     my %args = %{$_[0]};
1756     my ($parameter);
1757     my $count;
1758     print "Enum:\n\n";
1759
1760     print "enum " . $args{'enum'} . " - " . $args{'purpose'} . "\n\n";
1761     print "enum " . $args{'enum'} . " {\n";
1762     $count = 0;
1763     foreach $parameter (@{$args{'parameterlist'}}) {
1764         print "\t$parameter";
1765         if ($count != $#{$args{'parameterlist'}}) {
1766             $count++;
1767             print ",";
1768         }
1769         print "\n";
1770     }
1771     print "};\n\n";
1772
1773     print "Constants:\n\n";
1774     foreach $parameter (@{$args{'parameterlist'}}) {
1775         print "$parameter\n\t";
1776         print $args{'parameterdescs'}{$parameter} . "\n";
1777     }
1778
1779     output_section_text(@_);
1780 }
1781
1782 # output typedef in text
1783 sub output_typedef_text(%) {
1784     my %args = %{$_[0]};
1785     my ($parameter);
1786     my $count;
1787     print "Typedef:\n\n";
1788
1789     print "typedef " . $args{'typedef'} . " - " . $args{'purpose'} . "\n";
1790     output_section_text(@_);
1791 }
1792
1793 # output struct as text
1794 sub output_struct_text(%) {
1795     my %args = %{$_[0]};
1796     my ($parameter);
1797
1798     print $args{'type'} . " " . $args{'struct'} . " - " . $args{'purpose'} . "\n\n";
1799     print $args{'type'} . " " . $args{'struct'} . " {\n";
1800     foreach $parameter (@{$args{'parameterlist'}}) {
1801         if ($parameter =~ /^#/) {
1802             print "$parameter\n";
1803             next;
1804         }
1805
1806         my $parameter_name = $parameter;
1807         $parameter_name =~ s/\[.*//;
1808
1809         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1810         $type = $args{'parametertypes'}{$parameter};
1811         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1812             # pointer-to-function
1813             print "\t$1 $parameter) ($2);\n";
1814         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1815             # bitfield
1816             print "\t$1 $parameter$2;\n";
1817         } else {
1818             print "\t" . $type . " " . $parameter . ";\n";
1819         }
1820     }
1821     print "};\n\n";
1822
1823     print "Members:\n\n";
1824     foreach $parameter (@{$args{'parameterlist'}}) {
1825         ($parameter =~ /^#/) && next;
1826
1827         my $parameter_name = $parameter;
1828         $parameter_name =~ s/\[.*//;
1829
1830         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1831         print "$parameter\n\t";
1832         print $args{'parameterdescs'}{$parameter_name} . "\n";
1833     }
1834     print "\n";
1835     output_section_text(@_);
1836 }
1837
1838 sub output_blockhead_text(%) {
1839     my %args = %{$_[0]};
1840     my ($parameter, $section);
1841
1842     foreach $section (@{$args{'sectionlist'}}) {
1843         print " $section:\n";
1844         print "    -> ";
1845         output_highlight($args{'sections'}{$section});
1846     }
1847 }
1848
1849 ##
1850 # output in restructured text
1851 #
1852
1853 #
1854 # This could use some work; it's used to output the DOC: sections, and
1855 # starts by putting out the name of the doc section itself, but that tends
1856 # to duplicate a header already in the template file.
1857 #
1858 sub output_blockhead_rst(%) {
1859     my %args = %{$_[0]};
1860     my ($parameter, $section);
1861
1862     foreach $section (@{$args{'sectionlist'}}) {
1863         if ($output_selection != OUTPUT_INCLUDE) {
1864             print "**$section**\n\n";
1865         }
1866         print_lineno($section_start_lines{$section});
1867         output_highlight_rst($args{'sections'}{$section});
1868         print "\n";
1869     }
1870 }
1871
1872 sub output_highlight_rst {
1873     my $contents = join "\n",@_;
1874     my $line;
1875
1876     # undo the evil effects of xml_escape() earlier
1877     $contents = xml_unescape($contents);
1878
1879     eval $dohighlight;
1880     die $@ if $@;
1881
1882     foreach $line (split "\n", $contents) {
1883         print $lineprefix . $line . "\n";
1884     }
1885 }
1886
1887 sub output_function_rst(%) {
1888     my %args = %{$_[0]};
1889     my ($parameter, $section);
1890     my $oldprefix = $lineprefix;
1891     my $start = "";
1892
1893     if ($args{'typedef'}) {
1894         print ".. c:type:: ". $args{'function'} . "\n\n";
1895         print_lineno($declaration_start_line);
1896         print "   **Typedef**: ";
1897         $lineprefix = "";
1898         output_highlight_rst($args{'purpose'});
1899         $start = "\n\n**Syntax**\n\n  ``";
1900     } else {
1901         print ".. c:function:: ";
1902     }
1903     if ($args{'functiontype'} ne "") {
1904         $start .= $args{'functiontype'} . " " . $args{'function'} . " (";
1905     } else {
1906         $start .= $args{'function'} . " (";
1907     }
1908     print $start;
1909
1910     my $count = 0;
1911     foreach my $parameter (@{$args{'parameterlist'}}) {
1912         if ($count ne 0) {
1913             print ", ";
1914         }
1915         $count++;
1916         $type = $args{'parametertypes'}{$parameter};
1917
1918         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1919             # pointer-to-function
1920             print $1 . $parameter . ") (" . $2;
1921         } else {
1922             print $type . " " . $parameter;
1923         }
1924     }
1925     if ($args{'typedef'}) {
1926         print ");``\n\n";
1927     } else {
1928         print ")\n\n";
1929         print_lineno($declaration_start_line);
1930         $lineprefix = "   ";
1931         output_highlight_rst($args{'purpose'});
1932         print "\n";
1933     }
1934
1935     print "**Parameters**\n\n";
1936     $lineprefix = "  ";
1937     foreach $parameter (@{$args{'parameterlist'}}) {
1938         my $parameter_name = $parameter;
1939         $parameter_name =~ s/\[.*//;
1940         $type = $args{'parametertypes'}{$parameter};
1941
1942         if ($type ne "") {
1943             print "``$type $parameter``\n";
1944         } else {
1945             print "``$parameter``\n";
1946         }
1947
1948         print_lineno($parameterdesc_start_lines{$parameter_name});
1949
1950         if (defined($args{'parameterdescs'}{$parameter_name}) &&
1951             $args{'parameterdescs'}{$parameter_name} ne $undescribed) {
1952             output_highlight_rst($args{'parameterdescs'}{$parameter_name});
1953         } else {
1954             print "  *undescribed*\n";
1955         }
1956         print "\n";
1957     }
1958
1959     $lineprefix = $oldprefix;
1960     output_section_rst(@_);
1961 }
1962
1963 sub output_section_rst(%) {
1964     my %args = %{$_[0]};
1965     my $section;
1966     my $oldprefix = $lineprefix;
1967     $lineprefix = "";
1968
1969     foreach $section (@{$args{'sectionlist'}}) {
1970         print "**$section**\n\n";
1971         print_lineno($section_start_lines{$section});
1972         output_highlight_rst($args{'sections'}{$section});
1973         print "\n";
1974     }
1975     print "\n";
1976     $lineprefix = $oldprefix;
1977 }
1978
1979 sub output_enum_rst(%) {
1980     my %args = %{$_[0]};
1981     my ($parameter);
1982     my $oldprefix = $lineprefix;
1983     my $count;
1984     my $name = "enum " . $args{'enum'};
1985
1986     print "\n\n.. c:type:: " . $name . "\n\n";
1987     print_lineno($declaration_start_line);
1988     $lineprefix = "   ";
1989     output_highlight_rst($args{'purpose'});
1990     print "\n";
1991
1992     print "**Constants**\n\n";
1993     $lineprefix = "  ";
1994     foreach $parameter (@{$args{'parameterlist'}}) {
1995         print "``$parameter``\n";
1996         if ($args{'parameterdescs'}{$parameter} ne $undescribed) {
1997             output_highlight_rst($args{'parameterdescs'}{$parameter});
1998         } else {
1999             print "  *undescribed*\n";
2000         }
2001         print "\n";
2002     }
2003
2004     $lineprefix = $oldprefix;
2005     output_section_rst(@_);
2006 }
2007
2008 sub output_typedef_rst(%) {
2009     my %args = %{$_[0]};
2010     my ($parameter);
2011     my $oldprefix = $lineprefix;
2012     my $name = "typedef " . $args{'typedef'};
2013
2014     print "\n\n.. c:type:: " . $name . "\n\n";
2015     print_lineno($declaration_start_line);
2016     $lineprefix = "   ";
2017     output_highlight_rst($args{'purpose'});
2018     print "\n";
2019
2020     $lineprefix = $oldprefix;
2021     output_section_rst(@_);
2022 }
2023
2024 sub output_struct_rst(%) {
2025     my %args = %{$_[0]};
2026     my ($parameter);
2027     my $oldprefix = $lineprefix;
2028     my $name = $args{'type'} . " " . $args{'struct'};
2029
2030     print "\n\n.. c:type:: " . $name . "\n\n";
2031     print_lineno($declaration_start_line);
2032     $lineprefix = "   ";
2033     output_highlight_rst($args{'purpose'});
2034     print "\n";
2035
2036     print "**Definition**\n\n";
2037     print "::\n\n";
2038     print "  " . $args{'type'} . " " . $args{'struct'} . " {\n";
2039     foreach $parameter (@{$args{'parameterlist'}}) {
2040         if ($parameter =~ /^#/) {
2041             print "  " . "$parameter\n";
2042             next;
2043         }
2044
2045         my $parameter_name = $parameter;
2046         $parameter_name =~ s/\[.*//;
2047
2048         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
2049         $type = $args{'parametertypes'}{$parameter};
2050         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
2051             # pointer-to-function
2052             print "    $1 $parameter) ($2);\n";
2053         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
2054             # bitfield
2055             print "    $1 $parameter$2;\n";
2056         } else {
2057             print "    " . $type . " " . $parameter . ";\n";
2058         }
2059     }
2060     print "  };\n\n";
2061
2062     print "**Members**\n\n";
2063     $lineprefix = "  ";
2064     foreach $parameter (@{$args{'parameterlist'}}) {
2065         ($parameter =~ /^#/) && next;
2066
2067         my $parameter_name = $parameter;
2068         $parameter_name =~ s/\[.*//;
2069
2070         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
2071         $type = $args{'parametertypes'}{$parameter};
2072         print_lineno($parameterdesc_start_lines{$parameter_name});
2073         print "``" . $parameter . "``\n";
2074         output_highlight_rst($args{'parameterdescs'}{$parameter_name});
2075         print "\n";
2076     }
2077     print "\n";
2078
2079     $lineprefix = $oldprefix;
2080     output_section_rst(@_);
2081 }
2082
2083
2084 ## list mode output functions
2085
2086 sub output_function_list(%) {
2087     my %args = %{$_[0]};
2088
2089     print $args{'function'} . "\n";
2090 }
2091
2092 # output enum in list
2093 sub output_enum_list(%) {
2094     my %args = %{$_[0]};
2095     print $args{'enum'} . "\n";
2096 }
2097
2098 # output typedef in list
2099 sub output_typedef_list(%) {
2100     my %args = %{$_[0]};
2101     print $args{'typedef'} . "\n";
2102 }
2103
2104 # output struct as list
2105 sub output_struct_list(%) {
2106     my %args = %{$_[0]};
2107
2108     print $args{'struct'} . "\n";
2109 }
2110
2111 sub output_blockhead_list(%) {
2112     my %args = %{$_[0]};
2113     my ($parameter, $section);
2114
2115     foreach $section (@{$args{'sectionlist'}}) {
2116         print "DOC: $section\n";
2117     }
2118 }
2119
2120 ##
2121 # generic output function for all types (function, struct/union, typedef, enum);
2122 # calls the generated, variable output_ function name based on
2123 # functype and output_mode
2124 sub output_declaration {
2125     no strict 'refs';
2126     my $name = shift;
2127     my $functype = shift;
2128     my $func = "output_${functype}_$output_mode";
2129     if (($output_selection == OUTPUT_ALL) ||
2130         (($output_selection == OUTPUT_INCLUDE ||
2131           $output_selection == OUTPUT_EXPORTED) &&
2132          defined($function_table{$name})) ||
2133         (($output_selection == OUTPUT_EXCLUDE ||
2134           $output_selection == OUTPUT_INTERNAL) &&
2135          !($functype eq "function" && defined($function_table{$name}))))
2136     {
2137         &$func(@_);
2138         $section_counter++;
2139     }
2140 }
2141
2142 ##
2143 # generic output function - calls the right one based on current output mode.
2144 sub output_blockhead {
2145     no strict 'refs';
2146     my $func = "output_blockhead_" . $output_mode;
2147     &$func(@_);
2148     $section_counter++;
2149 }
2150
2151 ##
2152 # takes a declaration (struct, union, enum, typedef) and
2153 # invokes the right handler. NOT called for functions.
2154 sub dump_declaration($$) {
2155     no strict 'refs';
2156     my ($prototype, $file) = @_;
2157     my $func = "dump_" . $decl_type;
2158     &$func(@_);
2159 }
2160
2161 sub dump_union($$) {
2162     dump_struct(@_);
2163 }
2164
2165 sub dump_struct($$) {
2166     my $x = shift;
2167     my $file = shift;
2168     my $nested;
2169
2170     if ($x =~ /(struct|union)\s+(\w+)\s*{(.*)}/) {
2171         my $decl_type = $1;
2172         $declaration_name = $2;
2173         my $members = $3;
2174
2175         # ignore embedded structs or unions
2176         $members =~ s/({.*})//g;
2177         $nested = $1;
2178
2179         # ignore members marked private:
2180         $members =~ s/\/\*\s*private:.*?\/\*\s*public:.*?\*\///gosi;
2181         $members =~ s/\/\*\s*private:.*//gosi;
2182         # strip comments:
2183         $members =~ s/\/\*.*?\*\///gos;
2184         $nested =~ s/\/\*.*?\*\///gos;
2185         # strip kmemcheck_bitfield_{begin,end}.*;
2186         $members =~ s/kmemcheck_bitfield_.*?;//gos;
2187         # strip attributes
2188         $members =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
2189         $members =~ s/__aligned\s*\([^;]*\)//gos;
2190         $members =~ s/\s*CRYPTO_MINALIGN_ATTR//gos;
2191         # replace DECLARE_BITMAP
2192         $members =~ s/DECLARE_BITMAP\s*\(([^,)]+), ([^,)]+)\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
2193         # replace DECLARE_HASHTABLE
2194         $members =~ s/DECLARE_HASHTABLE\s*\(([^,)]+), ([^,)]+)\)/unsigned long $1\[1 << (($2) - 1)\]/gos;
2195
2196         create_parameterlist($members, ';', $file);
2197         check_sections($file, $declaration_name, $decl_type, $sectcheck, $struct_actual, $nested);
2198
2199         output_declaration($declaration_name,
2200                            'struct',
2201                            {'struct' => $declaration_name,
2202                             'module' => $modulename,
2203                             'parameterlist' => \@parameterlist,
2204                             'parameterdescs' => \%parameterdescs,
2205                             'parametertypes' => \%parametertypes,
2206                             'sectionlist' => \@sectionlist,
2207                             'sections' => \%sections,
2208                             'purpose' => $declaration_purpose,
2209                             'type' => $decl_type
2210                            });
2211     }
2212     else {
2213         print STDERR "${file}:$.: error: Cannot parse struct or union!\n";
2214         ++$errors;
2215     }
2216 }
2217
2218 sub dump_enum($$) {
2219     my $x = shift;
2220     my $file = shift;
2221
2222     $x =~ s@/\*.*?\*/@@gos;     # strip comments.
2223     # strip #define macros inside enums
2224     $x =~ s@#\s*((define|ifdef)\s+|endif)[^;]*;@@gos;
2225
2226     if ($x =~ /enum\s+(\w+)\s*{(.*)}/) {
2227         $declaration_name = $1;
2228         my $members = $2;
2229         my %_members;
2230
2231         $members =~ s/\s+$//;
2232
2233         foreach my $arg (split ',', $members) {
2234             $arg =~ s/^\s*(\w+).*/$1/;
2235             push @parameterlist, $arg;
2236             if (!$parameterdescs{$arg}) {
2237                 $parameterdescs{$arg} = $undescribed;
2238                 print STDERR "${file}:$.: warning: Enum value '$arg' ".
2239                     "not described in enum '$declaration_name'\n";
2240             }
2241             $_members{$arg} = 1;
2242         }
2243
2244         while (my ($k, $v) = each %parameterdescs) {
2245             if (!exists($_members{$k})) {
2246              print STDERR "${file}:$.: warning: Excess enum value " .
2247                           "'$k' description in '$declaration_name'\n";
2248             }
2249         }
2250
2251         output_declaration($declaration_name,
2252                            'enum',
2253                            {'enum' => $declaration_name,
2254                             'module' => $modulename,
2255                             'parameterlist' => \@parameterlist,
2256                             'parameterdescs' => \%parameterdescs,
2257                             'sectionlist' => \@sectionlist,
2258                             'sections' => \%sections,
2259                             'purpose' => $declaration_purpose
2260                            });
2261     }
2262     else {
2263         print STDERR "${file}:$.: error: Cannot parse enum!\n";
2264         ++$errors;
2265     }
2266 }
2267
2268 sub dump_typedef($$) {
2269     my $x = shift;
2270     my $file = shift;
2271
2272     $x =~ s@/\*.*?\*/@@gos;     # strip comments.
2273
2274     # Parse function prototypes
2275     if ($x =~ /typedef\s+(\w+)\s*\(\*\s*(\w\S+)\s*\)\s*\((.*)\);/ ||
2276         $x =~ /typedef\s+(\w+)\s*(\w\S+)\s*\s*\((.*)\);/) {
2277
2278         # Function typedefs
2279         $return_type = $1;
2280         $declaration_name = $2;
2281         my $args = $3;
2282
2283         create_parameterlist($args, ',', $file);
2284
2285         output_declaration($declaration_name,
2286                            'function',
2287                            {'function' => $declaration_name,
2288                             'typedef' => 1,
2289                             'module' => $modulename,
2290                             'functiontype' => $return_type,
2291                             'parameterlist' => \@parameterlist,
2292                             'parameterdescs' => \%parameterdescs,
2293                             'parametertypes' => \%parametertypes,
2294                             'sectionlist' => \@sectionlist,
2295                             'sections' => \%sections,
2296                             'purpose' => $declaration_purpose
2297                            });
2298         return;
2299     }
2300
2301     while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
2302         $x =~ s/\(*.\)\s*;$/;/;
2303         $x =~ s/\[*.\]\s*;$/;/;
2304     }
2305
2306     if ($x =~ /typedef.*\s+(\w+)\s*;/) {
2307         $declaration_name = $1;
2308
2309         output_declaration($declaration_name,
2310                            'typedef',
2311                            {'typedef' => $declaration_name,
2312                             'module' => $modulename,
2313                             'sectionlist' => \@sectionlist,
2314                             'sections' => \%sections,
2315                             'purpose' => $declaration_purpose
2316                            });
2317     }
2318     else {
2319         print STDERR "${file}:$.: error: Cannot parse typedef!\n";
2320         ++$errors;
2321     }
2322 }
2323
2324 sub save_struct_actual($) {
2325     my $actual = shift;
2326
2327     # strip all spaces from the actual param so that it looks like one string item
2328     $actual =~ s/\s*//g;
2329     $struct_actual = $struct_actual . $actual . " ";
2330 }
2331
2332 sub create_parameterlist($$$) {
2333     my $args = shift;
2334     my $splitter = shift;
2335     my $file = shift;
2336     my $type;
2337     my $param;
2338
2339     # temporarily replace commas inside function pointer definition
2340     while ($args =~ /(\([^\),]+),/) {
2341         $args =~ s/(\([^\),]+),/$1#/g;
2342     }
2343
2344     foreach my $arg (split($splitter, $args)) {
2345         # strip comments
2346         $arg =~ s/\/\*.*\*\///;
2347         # strip leading/trailing spaces
2348         $arg =~ s/^\s*//;
2349         $arg =~ s/\s*$//;
2350         $arg =~ s/\s+/ /;
2351
2352         if ($arg =~ /^#/) {
2353             # Treat preprocessor directive as a typeless variable just to fill
2354             # corresponding data structures "correctly". Catch it later in
2355             # output_* subs.
2356             push_parameter($arg, "", $file);
2357         } elsif ($arg =~ m/\(.+\)\s*\(/) {
2358             # pointer-to-function
2359             $arg =~ tr/#/,/;
2360             $arg =~ m/[^\(]+\(\*?\s*(\w*)\s*\)/;
2361             $param = $1;
2362             $type = $arg;
2363             $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
2364             save_struct_actual($param);
2365             push_parameter($param, $type, $file);
2366         } elsif ($arg) {
2367             $arg =~ s/\s*:\s*/:/g;
2368             $arg =~ s/\s*\[/\[/g;
2369
2370             my @args = split('\s*,\s*', $arg);
2371             if ($args[0] =~ m/\*/) {
2372                 $args[0] =~ s/(\*+)\s*/ $1/;
2373             }
2374
2375             my @first_arg;
2376             if ($args[0] =~ /^(.*\s+)(.*?\[.*\].*)$/) {
2377                     shift @args;
2378                     push(@first_arg, split('\s+', $1));
2379                     push(@first_arg, $2);
2380             } else {
2381                     @first_arg = split('\s+', shift @args);
2382             }
2383
2384             unshift(@args, pop @first_arg);
2385             $type = join " ", @first_arg;
2386
2387             foreach $param (@args) {
2388                 if ($param =~ m/^(\*+)\s*(.*)/) {
2389                     save_struct_actual($2);
2390                     push_parameter($2, "$type $1", $file);
2391                 }
2392                 elsif ($param =~ m/(.*?):(\d+)/) {
2393                     if ($type ne "") { # skip unnamed bit-fields
2394                         save_struct_actual($1);
2395                         push_parameter($1, "$type:$2", $file)
2396                     }
2397                 }
2398                 else {
2399                     save_struct_actual($param);
2400                     push_parameter($param, $type, $file);
2401                 }
2402             }
2403         }
2404     }
2405 }
2406
2407 sub push_parameter($$$) {
2408         my $param = shift;
2409         my $type = shift;
2410         my $file = shift;
2411
2412         if (($anon_struct_union == 1) && ($type eq "") &&
2413             ($param eq "}")) {
2414                 return;         # ignore the ending }; from anon. struct/union
2415         }
2416
2417         $anon_struct_union = 0;
2418         $param =~ s/[\[\)].*//;
2419
2420         if ($type eq "" && $param =~ /\.\.\.$/)
2421         {
2422             if (!$param =~ /\w\.\.\.$/) {
2423               # handles unnamed variable parameters
2424               $param = "...";
2425             }
2426             if (!defined $parameterdescs{$param} || $parameterdescs{$param} eq "") {
2427                 $parameterdescs{$param} = "variable arguments";
2428             }
2429         }
2430         elsif ($type eq "" && ($param eq "" or $param eq "void"))
2431         {
2432             $param="void";
2433             $parameterdescs{void} = "no arguments";
2434         }
2435         elsif ($type eq "" && ($param eq "struct" or $param eq "union"))
2436         # handle unnamed (anonymous) union or struct:
2437         {
2438                 $type = $param;
2439                 $param = "{unnamed_" . $param . "}";
2440                 $parameterdescs{$param} = "anonymous\n";
2441                 $anon_struct_union = 1;
2442         }
2443
2444         # warn if parameter has no description
2445         # (but ignore ones starting with # as these are not parameters
2446         # but inline preprocessor statements);
2447         # also ignore unnamed structs/unions;
2448         if (!$anon_struct_union) {
2449         if (!defined $parameterdescs{$param} && $param !~ /^#/) {
2450
2451             $parameterdescs{$param} = $undescribed;
2452
2453             if (($type eq 'function') || ($type eq 'enum')) {
2454                 print STDERR "${file}:$.: warning: Function parameter ".
2455                     "or member '$param' not " .
2456                     "described in '$declaration_name'\n";
2457             }
2458             print STDERR "${file}:$.: warning:" .
2459                          " No description found for parameter '$param'\n";
2460             ++$warnings;
2461         }
2462         }
2463
2464         $param = xml_escape($param);
2465
2466         # strip spaces from $param so that it is one continuous string
2467         # on @parameterlist;
2468         # this fixes a problem where check_sections() cannot find
2469         # a parameter like "addr[6 + 2]" because it actually appears
2470         # as "addr[6", "+", "2]" on the parameter list;
2471         # but it's better to maintain the param string unchanged for output,
2472         # so just weaken the string compare in check_sections() to ignore
2473         # "[blah" in a parameter string;
2474         ###$param =~ s/\s*//g;
2475         push @parameterlist, $param;
2476         $type =~ s/\s\s+/ /g;
2477         $parametertypes{$param} = $type;
2478 }
2479
2480 sub check_sections($$$$$$) {
2481         my ($file, $decl_name, $decl_type, $sectcheck, $prmscheck, $nested) = @_;
2482         my @sects = split ' ', $sectcheck;
2483         my @prms = split ' ', $prmscheck;
2484         my $err;
2485         my ($px, $sx);
2486         my $prm_clean;          # strip trailing "[array size]" and/or beginning "*"
2487
2488         foreach $sx (0 .. $#sects) {
2489                 $err = 1;
2490                 foreach $px (0 .. $#prms) {
2491                         $prm_clean = $prms[$px];
2492                         $prm_clean =~ s/\[.*\]//;
2493                         $prm_clean =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
2494                         # ignore array size in a parameter string;
2495                         # however, the original param string may contain
2496                         # spaces, e.g.:  addr[6 + 2]
2497                         # and this appears in @prms as "addr[6" since the
2498                         # parameter list is split at spaces;
2499                         # hence just ignore "[..." for the sections check;
2500                         $prm_clean =~ s/\[.*//;
2501
2502                         ##$prm_clean =~ s/^\**//;
2503                         if ($prm_clean eq $sects[$sx]) {
2504                                 $err = 0;
2505                                 last;
2506                         }
2507                 }
2508                 if ($err) {
2509                         if ($decl_type eq "function") {
2510                                 print STDERR "${file}:$.: warning: " .
2511                                         "Excess function parameter " .
2512                                         "'$sects[$sx]' " .
2513                                         "description in '$decl_name'\n";
2514                                 ++$warnings;
2515                         } else {
2516                                 if ($nested !~ m/\Q$sects[$sx]\E/) {
2517                                     print STDERR "${file}:$.: warning: " .
2518                                         "Excess $decl_type member " .
2519                                         "'$sects[$sx]' " .
2520                                         "description in '$decl_name'\n";
2521                                     ++$warnings;
2522                                 }
2523                         }
2524                 }
2525         }
2526 }
2527
2528 ##
2529 # Checks the section describing the return value of a function.
2530 sub check_return_section {
2531         my $file = shift;
2532         my $declaration_name = shift;
2533         my $return_type = shift;
2534
2535         # Ignore an empty return type (It's a macro)
2536         # Ignore functions with a "void" return type. (But don't ignore "void *")
2537         if (($return_type eq "") || ($return_type =~ /void\s*\w*\s*$/)) {
2538                 return;
2539         }
2540
2541         if (!defined($sections{$section_return}) ||
2542             $sections{$section_return} eq "") {
2543                 print STDERR "${file}:$.: warning: " .
2544                         "No description found for return value of " .
2545                         "'$declaration_name'\n";
2546                 ++$warnings;
2547         }
2548 }
2549
2550 ##
2551 # takes a function prototype and the name of the current file being
2552 # processed and spits out all the details stored in the global
2553 # arrays/hashes.
2554 sub dump_function($$) {
2555     my $prototype = shift;
2556     my $file = shift;
2557     my $noret = 0;
2558
2559     $prototype =~ s/^static +//;
2560     $prototype =~ s/^extern +//;
2561     $prototype =~ s/^asmlinkage +//;
2562     $prototype =~ s/^inline +//;
2563     $prototype =~ s/^__inline__ +//;
2564     $prototype =~ s/^__inline +//;
2565     $prototype =~ s/^__always_inline +//;
2566     $prototype =~ s/^noinline +//;
2567     $prototype =~ s/__init +//;
2568     $prototype =~ s/__init_or_module +//;
2569     $prototype =~ s/__meminit +//;
2570     $prototype =~ s/__must_check +//;
2571     $prototype =~ s/__weak +//;
2572     my $define = $prototype =~ s/^#\s*define\s+//; #ak added
2573     $prototype =~ s/__attribute__\s*\(\(
2574             (?:
2575                  [\w\s]++          # attribute name
2576                  (?:\([^)]*+\))?   # attribute arguments
2577                  \s*+,?            # optional comma at the end
2578             )+
2579           \)\)\s+//x;
2580
2581     # Yes, this truly is vile.  We are looking for:
2582     # 1. Return type (may be nothing if we're looking at a macro)
2583     # 2. Function name
2584     # 3. Function parameters.
2585     #
2586     # All the while we have to watch out for function pointer parameters
2587     # (which IIRC is what the two sections are for), C types (these
2588     # regexps don't even start to express all the possibilities), and
2589     # so on.
2590     #
2591     # If you mess with these regexps, it's a good idea to check that
2592     # the following functions' documentation still comes out right:
2593     # - parport_register_device (function pointer parameters)
2594     # - atomic_set (macro)
2595     # - pci_match_device, __copy_to_user (long return type)
2596
2597     if ($define && $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s+/) {
2598         # This is an object-like macro, it has no return type and no parameter
2599         # list.
2600         # Function-like macros are not allowed to have spaces between
2601         # declaration_name and opening parenthesis (notice the \s+).
2602         $return_type = $1;
2603         $declaration_name = $2;
2604         $noret = 1;
2605     } elsif ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2606         $prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2607         $prototype =~ m/^(\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2608         $prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2609         $prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2610         $prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2611         $prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2612         $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2613         $prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2614         $prototype =~ m/^(\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2615         $prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2616         $prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2617         $prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2618         $prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2619         $prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2620         $prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2621         $prototype =~ m/^(\w+\s+\w+\s*\*+\s*\w+\s*\*+\s*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/)  {
2622         $return_type = $1;
2623         $declaration_name = $2;
2624         my $args = $3;
2625
2626         create_parameterlist($args, ',', $file);
2627     } else {
2628         print STDERR "${file}:$.: warning: cannot understand function prototype: '$prototype'\n";
2629         return;
2630     }
2631
2632         my $prms = join " ", @parameterlist;
2633         check_sections($file, $declaration_name, "function", $sectcheck, $prms, "");
2634
2635         # This check emits a lot of warnings at the moment, because many
2636         # functions don't have a 'Return' doc section. So until the number
2637         # of warnings goes sufficiently down, the check is only performed in
2638         # verbose mode.
2639         # TODO: always perform the check.
2640         if ($verbose && !$noret) {
2641                 check_return_section($file, $declaration_name, $return_type);
2642         }
2643
2644     output_declaration($declaration_name,
2645                        'function',
2646                        {'function' => $declaration_name,
2647                         'module' => $modulename,
2648                         'functiontype' => $return_type,
2649                         'parameterlist' => \@parameterlist,
2650                         'parameterdescs' => \%parameterdescs,
2651                         'parametertypes' => \%parametertypes,
2652                         'sectionlist' => \@sectionlist,
2653                         'sections' => \%sections,
2654                         'purpose' => $declaration_purpose
2655                        });
2656 }
2657
2658 sub reset_state {
2659     $function = "";
2660     %parameterdescs = ();
2661     %parametertypes = ();
2662     @parameterlist = ();
2663     %sections = ();
2664     @sectionlist = ();
2665     $sectcheck = "";
2666     $struct_actual = "";
2667     $prototype = "";
2668
2669     $state = STATE_NORMAL;
2670     $inline_doc_state = STATE_INLINE_NA;
2671 }
2672
2673 sub tracepoint_munge($) {
2674         my $file = shift;
2675         my $tracepointname = 0;
2676         my $tracepointargs = 0;
2677
2678         if ($prototype =~ m/TRACE_EVENT\((.*?),/) {
2679                 $tracepointname = $1;
2680         }
2681         if ($prototype =~ m/DEFINE_SINGLE_EVENT\((.*?),/) {
2682                 $tracepointname = $1;
2683         }
2684         if ($prototype =~ m/DEFINE_EVENT\((.*?),(.*?),/) {
2685                 $tracepointname = $2;
2686         }
2687         $tracepointname =~ s/^\s+//; #strip leading whitespace
2688         if ($prototype =~ m/TP_PROTO\((.*?)\)/) {
2689                 $tracepointargs = $1;
2690         }
2691         if (($tracepointname eq 0) || ($tracepointargs eq 0)) {
2692                 print STDERR "${file}:$.: warning: Unrecognized tracepoint format: \n".
2693                              "$prototype\n";
2694         } else {
2695                 $prototype = "static inline void trace_$tracepointname($tracepointargs)";
2696         }
2697 }
2698
2699 sub syscall_munge() {
2700         my $void = 0;
2701
2702         $prototype =~ s@[\r\n\t]+@ @gos; # strip newlines/CR's/tabs
2703 ##      if ($prototype =~ m/SYSCALL_DEFINE0\s*\(\s*(a-zA-Z0-9_)*\s*\)/) {
2704         if ($prototype =~ m/SYSCALL_DEFINE0/) {
2705                 $void = 1;
2706 ##              $prototype = "long sys_$1(void)";
2707         }
2708
2709         $prototype =~ s/SYSCALL_DEFINE.*\(/long sys_/; # fix return type & func name
2710         if ($prototype =~ m/long (sys_.*?),/) {
2711                 $prototype =~ s/,/\(/;
2712         } elsif ($void) {
2713                 $prototype =~ s/\)/\(void\)/;
2714         }
2715
2716         # now delete all of the odd-number commas in $prototype
2717         # so that arg types & arg names don't have a comma between them
2718         my $count = 0;
2719         my $len = length($prototype);
2720         if ($void) {
2721                 $len = 0;       # skip the for-loop
2722         }
2723         for (my $ix = 0; $ix < $len; $ix++) {
2724                 if (substr($prototype, $ix, 1) eq ',') {
2725                         $count++;
2726                         if ($count % 2 == 1) {
2727                                 substr($prototype, $ix, 1) = ' ';
2728                         }
2729                 }
2730         }
2731 }
2732
2733 sub process_proto_function($$) {
2734     my $x = shift;
2735     my $file = shift;
2736
2737     $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
2738
2739     if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#\s*define/)) {
2740         # do nothing
2741     }
2742     elsif ($x =~ /([^\{]*)/) {
2743         $prototype .= $1;
2744     }
2745
2746     if (($x =~ /\{/) || ($x =~ /\#\s*define/) || ($x =~ /;/)) {
2747         $prototype =~ s@/\*.*?\*/@@gos; # strip comments.
2748         $prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
2749         $prototype =~ s@^\s+@@gos; # strip leading spaces
2750         if ($prototype =~ /SYSCALL_DEFINE/) {
2751                 syscall_munge();
2752         }
2753         if ($prototype =~ /TRACE_EVENT/ || $prototype =~ /DEFINE_EVENT/ ||
2754             $prototype =~ /DEFINE_SINGLE_EVENT/)
2755         {
2756                 tracepoint_munge($file);
2757         }
2758         dump_function($prototype, $file);
2759         reset_state();
2760     }
2761 }
2762
2763 sub process_proto_type($$) {
2764     my $x = shift;
2765     my $file = shift;
2766
2767     $x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
2768     $x =~ s@^\s+@@gos; # strip leading spaces
2769     $x =~ s@\s+$@@gos; # strip trailing spaces
2770     $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
2771
2772     if ($x =~ /^#/) {
2773         # To distinguish preprocessor directive from regular declaration later.
2774         $x .= ";";
2775     }
2776
2777     while (1) {
2778         if ( $x =~ /([^{};]*)([{};])(.*)/ ) {
2779             if( length $prototype ) {
2780                 $prototype .= " "
2781             }
2782             $prototype .= $1 . $2;
2783             ($2 eq '{') && $brcount++;
2784             ($2 eq '}') && $brcount--;
2785             if (($2 eq ';') && ($brcount == 0)) {
2786                 dump_declaration($prototype, $file);
2787                 reset_state();
2788                 last;
2789             }
2790             $x = $3;
2791         } else {
2792             $prototype .= $x;
2793             last;
2794         }
2795     }
2796 }
2797
2798 # xml_escape: replace <, >, and & in the text stream;
2799 #
2800 # however, formatting controls that are generated internally/locally in the
2801 # kernel-doc script are not escaped here; instead, they begin life like
2802 # $blankline_html (4 of '\' followed by a mnemonic + ':'), then these strings
2803 # are converted to their mnemonic-expected output, without the 4 * '\' & ':',
2804 # just before actual output; (this is done by local_unescape())
2805 sub xml_escape($) {
2806         my $text = shift;
2807         if (($output_mode eq "text") || ($output_mode eq "man")) {
2808                 return $text;
2809         }
2810         $text =~ s/\&/\\\\\\amp;/g;
2811         $text =~ s/\</\\\\\\lt;/g;
2812         $text =~ s/\>/\\\\\\gt;/g;
2813         return $text;
2814 }
2815
2816 # xml_unescape: reverse the effects of xml_escape
2817 sub xml_unescape($) {
2818         my $text = shift;
2819         if (($output_mode eq "text") || ($output_mode eq "man")) {
2820                 return $text;
2821         }
2822         $text =~ s/\\\\\\amp;/\&/g;
2823         $text =~ s/\\\\\\lt;/</g;
2824         $text =~ s/\\\\\\gt;/>/g;
2825         return $text;
2826 }
2827
2828 # convert local escape strings to html
2829 # local escape strings look like:  '\\\\menmonic:' (that's 4 backslashes)
2830 sub local_unescape($) {
2831         my $text = shift;
2832         if (($output_mode eq "text") || ($output_mode eq "man")) {
2833                 return $text;
2834         }
2835         $text =~ s/\\\\\\\\lt:/</g;
2836         $text =~ s/\\\\\\\\gt:/>/g;
2837         return $text;
2838 }
2839
2840 sub map_filename($) {
2841     my $file;
2842     my ($orig_file) = @_;
2843
2844     if (defined($ENV{'SRCTREE'})) {
2845         $file = "$ENV{'SRCTREE'}" . "/" . $orig_file;
2846     } else {
2847         $file = $orig_file;
2848     }
2849
2850     if (defined($source_map{$file})) {
2851         $file = $source_map{$file};
2852     }
2853
2854     return $file;
2855 }
2856
2857 sub process_export_file($) {
2858     my ($orig_file) = @_;
2859     my $file = map_filename($orig_file);
2860
2861     if (!open(IN,"<$file")) {
2862         print STDERR "Error: Cannot open file $file\n";
2863         ++$errors;
2864         return;
2865     }
2866
2867     while (<IN>) {
2868         if (/$export_symbol/) {
2869             $function_table{$2} = 1;
2870         }
2871     }
2872
2873     close(IN);
2874 }
2875
2876 sub process_file($) {
2877     my $file;
2878     my $identifier;
2879     my $func;
2880     my $descr;
2881     my $in_purpose = 0;
2882     my $initial_section_counter = $section_counter;
2883     my ($orig_file) = @_;
2884     my $leading_space;
2885
2886     $file = map_filename($orig_file);
2887
2888     if (!open(IN,"<$file")) {
2889         print STDERR "Error: Cannot open file $file\n";
2890         ++$errors;
2891         return;
2892     }
2893
2894     $. = 1;
2895
2896     $section_counter = 0;
2897     while (<IN>) {
2898         while (s/\\\s*$//) {
2899             $_ .= <IN>;
2900         }
2901         if ($state == STATE_NORMAL) {
2902             if (/$doc_start/o) {
2903                 $state = STATE_NAME;    # next line is always the function name
2904                 $in_doc_sect = 0;
2905                 $declaration_start_line = $. + 1;
2906             }
2907         } elsif ($state == STATE_NAME) {# this line is the function name (always)
2908             if (/$doc_block/o) {
2909                 $state = STATE_DOCBLOCK;
2910                 $contents = "";
2911                 $new_start_line = $. + 1;
2912
2913                 if ( $1 eq "" ) {
2914                         $section = $section_intro;
2915                 } else {
2916                         $section = $1;
2917                 }
2918             }
2919             elsif (/$doc_decl/o) {
2920                 $identifier = $1;
2921                 if (/\s*([\w\s]+?)\s*-/) {
2922                     $identifier = $1;
2923                 }
2924
2925                 $state = STATE_FIELD;
2926                 # if there's no @param blocks need to set up default section
2927                 # here
2928                 $contents = "";
2929                 $section = $section_default;
2930                 $new_start_line = $. + 1;
2931                 if (/-(.*)/) {
2932                     # strip leading/trailing/multiple spaces
2933                     $descr= $1;
2934                     $descr =~ s/^\s*//;
2935                     $descr =~ s/\s*$//;
2936                     $descr =~ s/\s+/ /g;
2937                     $declaration_purpose = xml_escape($descr);
2938                     $in_purpose = 1;
2939                 } else {
2940                     $declaration_purpose = "";
2941                 }
2942
2943                 if (($declaration_purpose eq "") && $verbose) {
2944                         print STDERR "${file}:$.: warning: missing initial short description on line:\n";
2945                         print STDERR $_;
2946                         ++$warnings;
2947                 }
2948
2949                 if ($identifier =~ m/^struct/) {
2950                     $decl_type = 'struct';
2951                 } elsif ($identifier =~ m/^union/) {
2952                     $decl_type = 'union';
2953                 } elsif ($identifier =~ m/^enum/) {
2954                     $decl_type = 'enum';
2955                 } elsif ($identifier =~ m/^typedef/) {
2956                     $decl_type = 'typedef';
2957                 } else {
2958                     $decl_type = 'function';
2959                 }
2960
2961                 if ($verbose) {
2962                     print STDERR "${file}:$.: info: Scanning doc for $identifier\n";
2963                 }
2964             } else {
2965                 print STDERR "${file}:$.: warning: Cannot understand $_ on line $.",
2966                 " - I thought it was a doc line\n";
2967                 ++$warnings;
2968                 $state = STATE_NORMAL;
2969             }
2970         } elsif ($state == STATE_FIELD) {       # look for head: lines, and include content
2971             if (/$doc_sect/i) { # case insensitive for supported section names
2972                 $newsection = $1;
2973                 $newcontents = $2;
2974
2975                 # map the supported section names to the canonical names
2976                 if ($newsection =~ m/^description$/i) {
2977                     $newsection = $section_default;
2978                 } elsif ($newsection =~ m/^context$/i) {
2979                     $newsection = $section_context;
2980                 } elsif ($newsection =~ m/^returns?$/i) {
2981                     $newsection = $section_return;
2982                 } elsif ($newsection =~ m/^\@return$/) {
2983                     # special: @return is a section, not a param description
2984                     $newsection = $section_return;
2985                 }
2986
2987                 if (($contents ne "") && ($contents ne "\n")) {
2988                     if (!$in_doc_sect && $verbose) {
2989                         print STDERR "${file}:$.: warning: contents before sections\n";
2990                         ++$warnings;
2991                     }
2992                     dump_section($file, $section, xml_escape($contents));
2993                     $section = $section_default;
2994                 }
2995
2996                 $in_doc_sect = 1;
2997                 $in_purpose = 0;
2998                 $contents = $newcontents;
2999                 $new_start_line = $.;
3000                 while ((substr($contents, 0, 1) eq " ") ||
3001                        substr($contents, 0, 1) eq "\t") {
3002                     $contents = substr($contents, 1);
3003                 }
3004                 if ($contents ne "") {
3005                     $contents .= "\n";
3006                 }
3007                 $section = $newsection;
3008                 $leading_space = undef;
3009             } elsif (/$doc_end/) {
3010                 if (($contents ne "") && ($contents ne "\n")) {
3011                     dump_section($file, $section, xml_escape($contents));
3012                     $section = $section_default;
3013                     $contents = "";
3014                 }
3015                 # look for doc_com + <text> + doc_end:
3016                 if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
3017                     print STDERR "${file}:$.: warning: suspicious ending line: $_";
3018                     ++$warnings;
3019                 }
3020
3021                 $prototype = "";
3022                 $state = STATE_PROTO;
3023                 $brcount = 0;
3024 #               print STDERR "end of doc comment, looking for prototype\n";
3025             } elsif (/$doc_content/) {
3026                 # miguel-style comment kludge, look for blank lines after
3027                 # @parameter line to signify start of description
3028                 if ($1 eq "") {
3029                     if ($section =~ m/^@/ || $section eq $section_context) {
3030                         dump_section($file, $section, xml_escape($contents));
3031                         $section = $section_default;
3032                         $contents = "";
3033                         $new_start_line = $.;
3034                     } else {
3035                         $contents .= "\n";
3036                     }
3037                     $in_purpose = 0;
3038                 } elsif ($in_purpose == 1) {
3039                     # Continued declaration purpose
3040                     chomp($declaration_purpose);
3041                     $declaration_purpose .= " " . xml_escape($1);
3042                     $declaration_purpose =~ s/\s+/ /g;
3043                 } else {
3044                     my $cont = $1;
3045                     if ($section =~ m/^@/ || $section eq $section_context) {
3046                         if (!defined $leading_space) {
3047                             if ($cont =~ m/^(\s+)/) {
3048                                 $leading_space = $1;
3049                             } else {
3050                                 $leading_space = "";
3051                             }
3052                         }
3053
3054                         $cont =~ s/^$leading_space//;
3055                     }
3056                     $contents .= $cont . "\n";
3057                 }
3058             } else {
3059                 # i dont know - bad line?  ignore.
3060                 print STDERR "${file}:$.: warning: bad line: $_";
3061                 ++$warnings;
3062             }
3063         } elsif ($state == STATE_INLINE) { # scanning for inline parameters
3064             # First line (state 1) needs to be a @parameter
3065             if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
3066                 $section = $1;
3067                 $contents = $2;
3068                 $new_start_line = $.;
3069                 if ($contents ne "") {
3070                     while ((substr($contents, 0, 1) eq " ") ||
3071                            substr($contents, 0, 1) eq "\t") {
3072                         $contents = substr($contents, 1);
3073                     }
3074                     $contents .= "\n";
3075                 }
3076                 $inline_doc_state = STATE_INLINE_TEXT;
3077             # Documentation block end */
3078             } elsif (/$doc_inline_end/) {
3079                 if (($contents ne "") && ($contents ne "\n")) {
3080                     dump_section($file, $section, xml_escape($contents));
3081                     $section = $section_default;
3082                     $contents = "";
3083                 }
3084                 $state = STATE_PROTO;
3085                 $inline_doc_state = STATE_INLINE_NA;
3086             # Regular text
3087             } elsif (/$doc_content/) {
3088                 if ($inline_doc_state == STATE_INLINE_TEXT) {
3089                     $contents .= $1 . "\n";
3090                     # nuke leading blank lines
3091                     if ($contents =~ /^\s*$/) {
3092                         $contents = "";
3093                     }
3094                 } elsif ($inline_doc_state == STATE_INLINE_NAME) {
3095                     $inline_doc_state = STATE_INLINE_ERROR;
3096                     print STDERR "${file}:$.: warning: ";
3097                     print STDERR "Incorrect use of kernel-doc format: $_";
3098                     ++$warnings;
3099                 }
3100             }
3101         } elsif ($state == STATE_PROTO) {       # scanning for function '{' (end of prototype)
3102             if (/$doc_inline_oneline/) {
3103                 $section = $1;
3104                 $contents = $2;
3105                 if ($contents ne "") {
3106                     $contents .= "\n";
3107                     dump_section($file, $section, xml_escape($contents));
3108                     $section = $section_default;
3109                     $contents = "";
3110                 }
3111             } elsif (/$doc_inline_start/) {
3112                 $state = STATE_INLINE;
3113                 $inline_doc_state = STATE_INLINE_NAME;
3114             } elsif ($decl_type eq 'function') {
3115                 process_proto_function($_, $file);
3116             } else {
3117                 process_proto_type($_, $file);
3118             }
3119         } elsif ($state == STATE_DOCBLOCK) {
3120                 if (/$doc_end/)
3121                 {
3122                         dump_doc_section($file, $section, xml_escape($contents));
3123                         $section = $section_default;
3124                         $contents = "";
3125                         $function = "";
3126                         %parameterdescs = ();
3127                         %parametertypes = ();
3128                         @parameterlist = ();
3129                         %sections = ();
3130                         @sectionlist = ();
3131                         $prototype = "";
3132                         $state = STATE_NORMAL;
3133                 }
3134                 elsif (/$doc_content/)
3135                 {
3136                         if ( $1 eq "" )
3137                         {
3138                                 $contents .= $blankline;
3139                         }
3140                         else
3141                         {
3142                                 $contents .= $1 . "\n";
3143                         }
3144                 }
3145         }
3146     }
3147     if ($initial_section_counter == $section_counter) {
3148         print STDERR "${file}:1: warning: no structured comments found\n";
3149         if (($output_selection == OUTPUT_INCLUDE) && ($show_not_found == 1)) {
3150             print STDERR "    Was looking for '$_'.\n" for keys %function_table;
3151         }
3152         if ($output_mode eq "xml") {
3153             # The template wants at least one RefEntry here; make one.
3154             print "<refentry>\n";
3155             print " <refnamediv>\n";
3156             print "  <refname>\n";
3157             print "   ${orig_file}\n";
3158             print "  </refname>\n";
3159             print "  <refpurpose>\n";
3160             print "   Document generation inconsistency\n";
3161             print "  </refpurpose>\n";
3162             print " </refnamediv>\n";
3163             print " <refsect1>\n";
3164             print "  <title>\n";
3165             print "   Oops\n";
3166             print "  </title>\n";
3167             print "  <warning>\n";
3168             print "   <para>\n";
3169             print "    The template for this document tried to insert\n";
3170             print "    the structured comment from the file\n";
3171             print "    <filename>${orig_file}</filename> at this point,\n";
3172             print "    but none was found.\n";
3173             print "    This dummy section is inserted to allow\n";
3174             print "    generation to continue.\n";
3175             print "   </para>\n";
3176             print "  </warning>\n";
3177             print " </refsect1>\n";
3178             print "</refentry>\n";
3179         }
3180     }
3181 }
3182
3183
3184 $kernelversion = get_kernel_version();
3185
3186 # generate a sequence of code that will splice in highlighting information
3187 # using the s// operator.
3188 for (my $k = 0; $k < @highlights; $k++) {
3189     my $pattern = $highlights[$k][0];
3190     my $result = $highlights[$k][1];
3191 #   print STDERR "scanning pattern:$pattern, highlight:($result)\n";
3192     $dohighlight .=  "\$contents =~ s:$pattern:$result:gs;\n";
3193 }
3194
3195 # Read the file that maps relative names to absolute names for
3196 # separate source and object directories and for shadow trees.
3197 if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
3198         my ($relname, $absname);
3199         while(<SOURCE_MAP>) {
3200                 chop();
3201                 ($relname, $absname) = (split())[0..1];
3202                 $relname =~ s:^/+::;
3203                 $source_map{$relname} = $absname;
3204         }
3205         close(SOURCE_MAP);
3206 }
3207
3208 if ($output_selection == OUTPUT_EXPORTED ||
3209     $output_selection == OUTPUT_INTERNAL) {
3210
3211     push(@export_file_list, @ARGV);
3212
3213     foreach (@export_file_list) {
3214         chomp;
3215         process_export_file($_);
3216     }
3217 }
3218
3219 foreach (@ARGV) {
3220     chomp;
3221     process_file($_);
3222 }
3223 if ($verbose && $errors) {
3224   print STDERR "$errors errors\n";
3225 }
3226 if ($verbose && $warnings) {
3227   print STDERR "$warnings warnings\n";
3228 }
3229
3230 exit($errors);