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1#!/usr/bin/env perl
2# SPDX-License-Identifier: GPL-2.0
3
4use warnings;
5use strict;
6
7## Copyright (c) 1998 Michael Zucchi, All Rights Reserved ##
8## Copyright (C) 2000, 1 Tim Waugh <twaugh@redhat.com> ##
9## Copyright (C) 2001 Simon Huggins ##
10## Copyright (C) 2005-2012 Randy Dunlap ##
11## Copyright (C) 2012 Dan Luedtke ##
12## ##
13## #define enhancements by Armin Kuster <akuster@mvista.com> ##
14## Copyright (c) 2000 MontaVista Software, Inc. ##
15#
16# Copyright (C) 2022 Tomasz Warniełło (POD)
17
18use Pod::Usage qw/pod2usage/;
19
20=head1 NAME
21
22kernel-doc - Print formatted kernel documentation to stdout
23
24=head1 SYNOPSIS
25
26 kernel-doc [-h] [-v] [-Werror]
27 [ -man |
28 -rst [-sphinx-version VERSION] [-enable-lineno] |
29 -none
30 ]
31 [
32 -export |
33 -internal |
34 [-function NAME] ... |
35 [-nosymbol NAME] ...
36 ]
37 [-no-doc-sections]
38 [-export-file FILE] ...
39 FILE ...
40
41Run `kernel-doc -h` for details.
42
43=head1 DESCRIPTION
44
45Read C language source or header FILEs, extract embedded documentation comments,
46and print formatted documentation to standard output.
47
48The documentation comments are identified by the "/**" opening comment mark.
49
50See Documentation/doc-guide/kernel-doc.rst for the documentation comment syntax.
51
52=cut
53
54# more perldoc at the end of the file
55
56## init lots of data
57
58my $errors = 0;
59my $warnings = 0;
60my $anon_struct_union = 0;
61
62# match expressions used to find embedded type information
63my $type_constant = '\b``([^\`]+)``\b';
64my $type_constant2 = '\%([-_\w]+)';
65my $type_func = '(\w+)\(\)';
66my $type_param = '\@(\w*((\.\w+)|(->\w+))*(\.\.\.)?)';
67my $type_param_ref = '([\!]?)\@(\w*((\.\w+)|(->\w+))*(\.\.\.)?)';
68my $type_fp_param = '\@(\w+)\(\)'; # Special RST handling for func ptr params
69my $type_fp_param2 = '\@(\w+->\S+)\(\)'; # Special RST handling for structs with func ptr params
70my $type_env = '(\$\w+)';
71my $type_enum = '\&(enum\s*([_\w]+))';
72my $type_struct = '\&(struct\s*([_\w]+))';
73my $type_typedef = '\&(typedef\s*([_\w]+))';
74my $type_union = '\&(union\s*([_\w]+))';
75my $type_member = '\&([_\w]+)(\.|->)([_\w]+)';
76my $type_fallback = '\&([_\w]+)';
77my $type_member_func = $type_member . '\(\)';
78
79# Output conversion substitutions.
80# One for each output format
81
82# these are pretty rough
83my @highlights_man = (
84 [$type_constant, "\$1"],
85 [$type_constant2, "\$1"],
86 [$type_func, "\\\\fB\$1\\\\fP"],
87 [$type_enum, "\\\\fI\$1\\\\fP"],
88 [$type_struct, "\\\\fI\$1\\\\fP"],
89 [$type_typedef, "\\\\fI\$1\\\\fP"],
90 [$type_union, "\\\\fI\$1\\\\fP"],
91 [$type_param, "\\\\fI\$1\\\\fP"],
92 [$type_param_ref, "\\\\fI\$1\$2\\\\fP"],
93 [$type_member, "\\\\fI\$1\$2\$3\\\\fP"],
94 [$type_fallback, "\\\\fI\$1\\\\fP"]
95 );
96my $blankline_man = "";
97
98# rst-mode
99my @highlights_rst = (
100 [$type_constant, "``\$1``"],
101 [$type_constant2, "``\$1``"],
102 # Note: need to escape () to avoid func matching later
103 [$type_member_func, "\\:c\\:type\\:`\$1\$2\$3\\\\(\\\\) <\$1>`"],
104 [$type_member, "\\:c\\:type\\:`\$1\$2\$3 <\$1>`"],
105 [$type_fp_param, "**\$1\\\\(\\\\)**"],
106 [$type_fp_param2, "**\$1\\\\(\\\\)**"],
107 [$type_func, "\$1()"],
108 [$type_enum, "\\:c\\:type\\:`\$1 <\$2>`"],
109 [$type_struct, "\\:c\\:type\\:`\$1 <\$2>`"],
110 [$type_typedef, "\\:c\\:type\\:`\$1 <\$2>`"],
111 [$type_union, "\\:c\\:type\\:`\$1 <\$2>`"],
112 # in rst this can refer to any type
113 [$type_fallback, "\\:c\\:type\\:`\$1`"],
114 [$type_param_ref, "**\$1\$2**"]
115 );
116my $blankline_rst = "\n";
117
118# read arguments
119if ($#ARGV == -1) {
120 pod2usage(
121 -message => "No arguments!\n",
122 -exitval => 1,
123 -verbose => 99,
124 -sections => 'SYNOPSIS',
125 -output => \*STDERR,
126 );
127}
128
129my $kernelversion;
130my ($sphinx_major, $sphinx_minor, $sphinx_patch);
131
132my $dohighlight = "";
133
134my $verbose = 0;
135my $Werror = 0;
136my $output_mode = "rst";
137my $output_preformatted = 0;
138my $no_doc_sections = 0;
139my $enable_lineno = 0;
140my @highlights = @highlights_rst;
141my $blankline = $blankline_rst;
142my $modulename = "Kernel API";
143
144use constant {
145 OUTPUT_ALL => 0, # output all symbols and doc sections
146 OUTPUT_INCLUDE => 1, # output only specified symbols
147 OUTPUT_EXPORTED => 2, # output exported symbols
148 OUTPUT_INTERNAL => 3, # output non-exported symbols
149};
150my $output_selection = OUTPUT_ALL;
151my $show_not_found = 0; # No longer used
152
153my @export_file_list;
154
155my @build_time;
156if (defined($ENV{'KBUILD_BUILD_TIMESTAMP'}) &&
157 (my $seconds = `date -d"${ENV{'KBUILD_BUILD_TIMESTAMP'}}" +%s`) ne '') {
158 @build_time = gmtime($seconds);
159} else {
160 @build_time = localtime;
161}
162
163my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
164 'July', 'August', 'September', 'October',
165 'November', 'December')[$build_time[4]] .
166 " " . ($build_time[5]+1900);
167
168# Essentially these are globals.
169# They probably want to be tidied up, made more localised or something.
170# CAVEAT EMPTOR! Some of the others I localised may not want to be, which
171# could cause "use of undefined value" or other bugs.
172my ($function, %function_table, %parametertypes, $declaration_purpose);
173my %nosymbol_table = ();
174my $declaration_start_line;
175my ($type, $declaration_name, $return_type);
176my ($newsection, $newcontents, $prototype, $brcount, %source_map);
177
178if (defined($ENV{'KBUILD_VERBOSE'})) {
179 $verbose = "$ENV{'KBUILD_VERBOSE'}";
180}
181
182if (defined($ENV{'KCFLAGS'})) {
183 my $kcflags = "$ENV{'KCFLAGS'}";
184
185 if ($kcflags =~ /Werror/) {
186 $Werror = 1;
187 }
188}
189
190if (defined($ENV{'KDOC_WERROR'})) {
191 $Werror = "$ENV{'KDOC_WERROR'}";
192}
193
194# Generated docbook code is inserted in a template at a point where
195# docbook v3.1 requires a non-zero sequence of RefEntry's; see:
196# https://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
197# We keep track of number of generated entries and generate a dummy
198# if needs be to ensure the expanded template can be postprocessed
199# into html.
200my $section_counter = 0;
201
202my $lineprefix="";
203
204# Parser states
205use constant {
206 STATE_NORMAL => 0, # normal code
207 STATE_NAME => 1, # looking for function name
208 STATE_BODY_MAYBE => 2, # body - or maybe more description
209 STATE_BODY => 3, # the body of the comment
210 STATE_BODY_WITH_BLANK_LINE => 4, # the body, which has a blank line
211 STATE_PROTO => 5, # scanning prototype
212 STATE_DOCBLOCK => 6, # documentation block
213 STATE_INLINE => 7, # gathering doc outside main block
214};
215my $state;
216my $in_doc_sect;
217my $leading_space;
218
219# Inline documentation state
220use constant {
221 STATE_INLINE_NA => 0, # not applicable ($state != STATE_INLINE)
222 STATE_INLINE_NAME => 1, # looking for member name (@foo:)
223 STATE_INLINE_TEXT => 2, # looking for member documentation
224 STATE_INLINE_END => 3, # done
225 STATE_INLINE_ERROR => 4, # error - Comment without header was found.
226 # Spit a warning as it's not
227 # proper kernel-doc and ignore the rest.
228};
229my $inline_doc_state;
230
231#declaration types: can be
232# 'function', 'struct', 'union', 'enum', 'typedef'
233my $decl_type;
234
235# Name of the kernel-doc identifier for non-DOC markups
236my $identifier;
237
238my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
239my $doc_end = '\*/';
240my $doc_com = '\s*\*\s*';
241my $doc_com_body = '\s*\* ?';
242my $doc_decl = $doc_com . '(\w+)';
243# @params and a strictly limited set of supported section names
244# Specifically:
245# Match @word:
246# @...:
247# @{section-name}:
248# while trying to not match literal block starts like "example::"
249#
250my $doc_sect = $doc_com .
251 '\s*(\@[.\w]+|\@\.\.\.|description|context|returns?|notes?|examples?)\s*:([^:].*)?$';
252my $doc_content = $doc_com_body . '(.*)';
253my $doc_block = $doc_com . 'DOC:\s*(.*)?';
254my $doc_inline_start = '^\s*/\*\*\s*$';
255my $doc_inline_sect = '\s*\*\s*(@\s*[\w][\w\.]*\s*):(.*)';
256my $doc_inline_end = '^\s*\*/\s*$';
257my $doc_inline_oneline = '^\s*/\*\*\s*(@[\w\s]+):\s*(.*)\s*\*/\s*$';
258my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
259my $export_symbol_ns = '^\s*EXPORT_SYMBOL_NS(_GPL)?\s*\(\s*(\w+)\s*,\s*\w+\)\s*;';
260my $function_pointer = qr{([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)};
261my $attribute = qr{__attribute__\s*\(\([a-z0-9,_\*\s\(\)]*\)\)}i;
262
263my %parameterdescs;
264my %parameterdesc_start_lines;
265my @parameterlist;
266my %sections;
267my @sectionlist;
268my %section_start_lines;
269my $sectcheck;
270my $struct_actual;
271
272my $contents = "";
273my $new_start_line = 0;
274
275# the canonical section names. see also $doc_sect above.
276my $section_default = "Description"; # default section
277my $section_intro = "Introduction";
278my $section = $section_default;
279my $section_context = "Context";
280my $section_return = "Return";
281
282my $undescribed = "-- undescribed --";
283
284reset_state();
285
286while ($ARGV[0] =~ m/^--?(.*)/) {
287 my $cmd = $1;
288 shift @ARGV;
289 if ($cmd eq "man") {
290 $output_mode = "man";
291 @highlights = @highlights_man;
292 $blankline = $blankline_man;
293 } elsif ($cmd eq "rst") {
294 $output_mode = "rst";
295 @highlights = @highlights_rst;
296 $blankline = $blankline_rst;
297 } elsif ($cmd eq "none") {
298 $output_mode = "none";
299 } elsif ($cmd eq "module") { # not needed for XML, inherits from calling document
300 $modulename = shift @ARGV;
301 } elsif ($cmd eq "function") { # to only output specific functions
302 $output_selection = OUTPUT_INCLUDE;
303 $function = shift @ARGV;
304 $function_table{$function} = 1;
305 } elsif ($cmd eq "nosymbol") { # Exclude specific symbols
306 my $symbol = shift @ARGV;
307 $nosymbol_table{$symbol} = 1;
308 } elsif ($cmd eq "export") { # only exported symbols
309 $output_selection = OUTPUT_EXPORTED;
310 %function_table = ();
311 } elsif ($cmd eq "internal") { # only non-exported symbols
312 $output_selection = OUTPUT_INTERNAL;
313 %function_table = ();
314 } elsif ($cmd eq "export-file") {
315 my $file = shift @ARGV;
316 push(@export_file_list, $file);
317 } elsif ($cmd eq "v") {
318 $verbose = 1;
319 } elsif ($cmd eq "Werror") {
320 $Werror = 1;
321 } elsif (($cmd eq "h") || ($cmd eq "help")) {
322 pod2usage(-exitval => 0, -verbose => 2);
323 } elsif ($cmd eq 'no-doc-sections') {
324 $no_doc_sections = 1;
325 } elsif ($cmd eq 'enable-lineno') {
326 $enable_lineno = 1;
327 } elsif ($cmd eq 'show-not-found') {
328 $show_not_found = 1; # A no-op but don't fail
329 } elsif ($cmd eq "sphinx-version") {
330 my $ver_string = shift @ARGV;
331 if ($ver_string =~ m/^(\d+)(\.\d+)?(\.\d+)?/) {
332 $sphinx_major = $1;
333 if (defined($2)) {
334 $sphinx_minor = substr($2,1);
335 } else {
336 $sphinx_minor = 0;
337 }
338 if (defined($3)) {
339 $sphinx_patch = substr($3,1)
340 } else {
341 $sphinx_patch = 0;
342 }
343 } else {
344 die "Sphinx version should either major.minor or major.minor.patch format\n";
345 }
346 } else {
347 # Unknown argument
348 pod2usage(
349 -message => "Argument unknown!\n",
350 -exitval => 1,
351 -verbose => 99,
352 -sections => 'SYNOPSIS',
353 -output => \*STDERR,
354 );
355 }
356 if ($#ARGV < 0){
357 pod2usage(
358 -message => "FILE argument missing\n",
359 -exitval => 1,
360 -verbose => 99,
361 -sections => 'SYNOPSIS',
362 -output => \*STDERR,
363 );
364 }
365}
366
367# continue execution near EOF;
368
369# The C domain dialect changed on Sphinx 3. So, we need to check the
370# version in order to produce the right tags.
371sub findprog($)
372{
373 foreach(split(/:/, $ENV{PATH})) {
374 return "$_/$_[0]" if(-x "$_/$_[0]");
375 }
376}
377
378sub get_sphinx_version()
379{
380 my $ver;
381
382 my $cmd = "sphinx-build";
383 if (!findprog($cmd)) {
384 my $cmd = "sphinx-build3";
385 if (!findprog($cmd)) {
386 $sphinx_major = 1;
387 $sphinx_minor = 2;
388 $sphinx_patch = 0;
389 printf STDERR "Warning: Sphinx version not found. Using default (Sphinx version %d.%d.%d)\n",
390 $sphinx_major, $sphinx_minor, $sphinx_patch;
391 return;
392 }
393 }
394
395 open IN, "$cmd --version 2>&1 |";
396 while (<IN>) {
397 if (m/^\s*sphinx-build\s+([\d]+)\.([\d\.]+)(\+\/[\da-f]+)?$/) {
398 $sphinx_major = $1;
399 $sphinx_minor = $2;
400 $sphinx_patch = $3;
401 last;
402 }
403 # Sphinx 1.2.x uses a different format
404 if (m/^\s*Sphinx.*\s+([\d]+)\.([\d\.]+)$/) {
405 $sphinx_major = $1;
406 $sphinx_minor = $2;
407 $sphinx_patch = $3;
408 last;
409 }
410 }
411 close IN;
412}
413
414# get kernel version from env
415sub get_kernel_version() {
416 my $version = 'unknown kernel version';
417
418 if (defined($ENV{'KERNELVERSION'})) {
419 $version = $ENV{'KERNELVERSION'};
420 }
421 return $version;
422}
423
424#
425sub print_lineno {
426 my $lineno = shift;
427 if ($enable_lineno && defined($lineno)) {
428 print ".. LINENO " . $lineno . "\n";
429 }
430}
431
432sub emit_warning {
433 my $location = shift;
434 my $msg = shift;
435 print STDERR "$location: warning: $msg";
436 ++$warnings;
437}
438##
439# dumps section contents to arrays/hashes intended for that purpose.
440#
441sub dump_section {
442 my $file = shift;
443 my $name = shift;
444 my $contents = join "\n", @_;
445
446 if ($name =~ m/$type_param/) {
447 $name = $1;
448 $parameterdescs{$name} = $contents;
449 $sectcheck = $sectcheck . $name . " ";
450 $parameterdesc_start_lines{$name} = $new_start_line;
451 $new_start_line = 0;
452 } elsif ($name eq "@\.\.\.") {
453 $name = "...";
454 $parameterdescs{$name} = $contents;
455 $sectcheck = $sectcheck . $name . " ";
456 $parameterdesc_start_lines{$name} = $new_start_line;
457 $new_start_line = 0;
458 } else {
459 if (defined($sections{$name}) && ($sections{$name} ne "")) {
460 # Only warn on user specified duplicate section names.
461 if ($name ne $section_default) {
462 emit_warning("${file}:$.", "duplicate section name '$name'\n");
463 }
464 $sections{$name} .= $contents;
465 } else {
466 $sections{$name} = $contents;
467 push @sectionlist, $name;
468 $section_start_lines{$name} = $new_start_line;
469 $new_start_line = 0;
470 }
471 }
472}
473
474##
475# dump DOC: section after checking that it should go out
476#
477sub dump_doc_section {
478 my $file = shift;
479 my $name = shift;
480 my $contents = join "\n", @_;
481
482 if ($no_doc_sections) {
483 return;
484 }
485
486 return if (defined($nosymbol_table{$name}));
487
488 if (($output_selection == OUTPUT_ALL) ||
489 (($output_selection == OUTPUT_INCLUDE) &&
490 defined($function_table{$name})))
491 {
492 dump_section($file, $name, $contents);
493 output_blockhead({'sectionlist' => \@sectionlist,
494 'sections' => \%sections,
495 'module' => $modulename,
496 'content-only' => ($output_selection != OUTPUT_ALL), });
497 }
498}
499
500##
501# output function
502#
503# parameterdescs, a hash.
504# function => "function name"
505# parameterlist => @list of parameters
506# parameterdescs => %parameter descriptions
507# sectionlist => @list of sections
508# sections => %section descriptions
509#
510
511sub output_highlight {
512 my $contents = join "\n",@_;
513 my $line;
514
515# DEBUG
516# if (!defined $contents) {
517# use Carp;
518# confess "output_highlight got called with no args?\n";
519# }
520
521# print STDERR "contents b4:$contents\n";
522 eval $dohighlight;
523 die $@ if $@;
524# print STDERR "contents af:$contents\n";
525
526 foreach $line (split "\n", $contents) {
527 if (! $output_preformatted) {
528 $line =~ s/^\s*//;
529 }
530 if ($line eq ""){
531 if (! $output_preformatted) {
532 print $lineprefix, $blankline;
533 }
534 } else {
535 if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
536 print "\\&$line";
537 } else {
538 print $lineprefix, $line;
539 }
540 }
541 print "\n";
542 }
543}
544
545##
546# output function in man
547sub output_function_man(%) {
548 my %args = %{$_[0]};
549 my ($parameter, $section);
550 my $count;
551
552 print ".TH \"$args{'function'}\" 9 \"$args{'function'}\" \"$man_date\" \"Kernel Hacker's Manual\" LINUX\n";
553
554 print ".SH NAME\n";
555 print $args{'function'} . " \\- " . $args{'purpose'} . "\n";
556
557 print ".SH SYNOPSIS\n";
558 if ($args{'functiontype'} ne "") {
559 print ".B \"" . $args{'functiontype'} . "\" " . $args{'function'} . "\n";
560 } else {
561 print ".B \"" . $args{'function'} . "\n";
562 }
563 $count = 0;
564 my $parenth = "(";
565 my $post = ",";
566 foreach my $parameter (@{$args{'parameterlist'}}) {
567 if ($count == $#{$args{'parameterlist'}}) {
568 $post = ");";
569 }
570 $type = $args{'parametertypes'}{$parameter};
571 if ($type =~ m/$function_pointer/) {
572 # pointer-to-function
573 print ".BI \"" . $parenth . $1 . "\" " . " \") (" . $2 . ")" . $post . "\"\n";
574 } else {
575 $type =~ s/([^\*])$/$1 /;
576 print ".BI \"" . $parenth . $type . "\" " . " \"" . $post . "\"\n";
577 }
578 $count++;
579 $parenth = "";
580 }
581
582 print ".SH ARGUMENTS\n";
583 foreach $parameter (@{$args{'parameterlist'}}) {
584 my $parameter_name = $parameter;
585 $parameter_name =~ s/\[.*//;
586
587 print ".IP \"" . $parameter . "\" 12\n";
588 output_highlight($args{'parameterdescs'}{$parameter_name});
589 }
590 foreach $section (@{$args{'sectionlist'}}) {
591 print ".SH \"", uc $section, "\"\n";
592 output_highlight($args{'sections'}{$section});
593 }
594}
595
596##
597# output enum in man
598sub output_enum_man(%) {
599 my %args = %{$_[0]};
600 my ($parameter, $section);
601 my $count;
602
603 print ".TH \"$args{'module'}\" 9 \"enum $args{'enum'}\" \"$man_date\" \"API Manual\" LINUX\n";
604
605 print ".SH NAME\n";
606 print "enum " . $args{'enum'} . " \\- " . $args{'purpose'} . "\n";
607
608 print ".SH SYNOPSIS\n";
609 print "enum " . $args{'enum'} . " {\n";
610 $count = 0;
611 foreach my $parameter (@{$args{'parameterlist'}}) {
612 print ".br\n.BI \" $parameter\"\n";
613 if ($count == $#{$args{'parameterlist'}}) {
614 print "\n};\n";
615 last;
616 }
617 else {
618 print ", \n.br\n";
619 }
620 $count++;
621 }
622
623 print ".SH Constants\n";
624 foreach $parameter (@{$args{'parameterlist'}}) {
625 my $parameter_name = $parameter;
626 $parameter_name =~ s/\[.*//;
627
628 print ".IP \"" . $parameter . "\" 12\n";
629 output_highlight($args{'parameterdescs'}{$parameter_name});
630 }
631 foreach $section (@{$args{'sectionlist'}}) {
632 print ".SH \"$section\"\n";
633 output_highlight($args{'sections'}{$section});
634 }
635}
636
637##
638# output struct in man
639sub output_struct_man(%) {
640 my %args = %{$_[0]};
641 my ($parameter, $section);
642
643 print ".TH \"$args{'module'}\" 9 \"" . $args{'type'} . " " . $args{'struct'} . "\" \"$man_date\" \"API Manual\" LINUX\n";
644
645 print ".SH NAME\n";
646 print $args{'type'} . " " . $args{'struct'} . " \\- " . $args{'purpose'} . "\n";
647
648 my $declaration = $args{'definition'};
649 $declaration =~ s/\t/ /g;
650 $declaration =~ s/\n/"\n.br\n.BI \"/g;
651 print ".SH SYNOPSIS\n";
652 print $args{'type'} . " " . $args{'struct'} . " {\n.br\n";
653 print ".BI \"$declaration\n};\n.br\n\n";
654
655 print ".SH Members\n";
656 foreach $parameter (@{$args{'parameterlist'}}) {
657 ($parameter =~ /^#/) && next;
658
659 my $parameter_name = $parameter;
660 $parameter_name =~ s/\[.*//;
661
662 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
663 print ".IP \"" . $parameter . "\" 12\n";
664 output_highlight($args{'parameterdescs'}{$parameter_name});
665 }
666 foreach $section (@{$args{'sectionlist'}}) {
667 print ".SH \"$section\"\n";
668 output_highlight($args{'sections'}{$section});
669 }
670}
671
672##
673# output typedef in man
674sub output_typedef_man(%) {
675 my %args = %{$_[0]};
676 my ($parameter, $section);
677
678 print ".TH \"$args{'module'}\" 9 \"$args{'typedef'}\" \"$man_date\" \"API Manual\" LINUX\n";
679
680 print ".SH NAME\n";
681 print "typedef " . $args{'typedef'} . " \\- " . $args{'purpose'} . "\n";
682
683 foreach $section (@{$args{'sectionlist'}}) {
684 print ".SH \"$section\"\n";
685 output_highlight($args{'sections'}{$section});
686 }
687}
688
689sub output_blockhead_man(%) {
690 my %args = %{$_[0]};
691 my ($parameter, $section);
692 my $count;
693
694 print ".TH \"$args{'module'}\" 9 \"$args{'module'}\" \"$man_date\" \"API Manual\" LINUX\n";
695
696 foreach $section (@{$args{'sectionlist'}}) {
697 print ".SH \"$section\"\n";
698 output_highlight($args{'sections'}{$section});
699 }
700}
701
702##
703# output in restructured text
704#
705
706#
707# This could use some work; it's used to output the DOC: sections, and
708# starts by putting out the name of the doc section itself, but that tends
709# to duplicate a header already in the template file.
710#
711sub output_blockhead_rst(%) {
712 my %args = %{$_[0]};
713 my ($parameter, $section);
714
715 foreach $section (@{$args{'sectionlist'}}) {
716 next if (defined($nosymbol_table{$section}));
717
718 if ($output_selection != OUTPUT_INCLUDE) {
719 print ".. _$section:\n\n";
720 print "**$section**\n\n";
721 }
722 print_lineno($section_start_lines{$section});
723 output_highlight_rst($args{'sections'}{$section});
724 print "\n";
725 }
726}
727
728#
729# Apply the RST highlights to a sub-block of text.
730#
731sub highlight_block($) {
732 # The dohighlight kludge requires the text be called $contents
733 my $contents = shift;
734 eval $dohighlight;
735 die $@ if $@;
736 return $contents;
737}
738
739#
740# Regexes used only here.
741#
742my $sphinx_literal = '^[^.].*::$';
743my $sphinx_cblock = '^\.\.\ +code-block::';
744
745sub output_highlight_rst {
746 my $input = join "\n",@_;
747 my $output = "";
748 my $line;
749 my $in_literal = 0;
750 my $litprefix;
751 my $block = "";
752
753 foreach $line (split "\n",$input) {
754 #
755 # If we're in a literal block, see if we should drop out
756 # of it. Otherwise pass the line straight through unmunged.
757 #
758 if ($in_literal) {
759 if (! ($line =~ /^\s*$/)) {
760 #
761 # If this is the first non-blank line in a literal
762 # block we need to figure out what the proper indent is.
763 #
764 if ($litprefix eq "") {
765 $line =~ /^(\s*)/;
766 $litprefix = '^' . $1;
767 $output .= $line . "\n";
768 } elsif (! ($line =~ /$litprefix/)) {
769 $in_literal = 0;
770 } else {
771 $output .= $line . "\n";
772 }
773 } else {
774 $output .= $line . "\n";
775 }
776 }
777 #
778 # Not in a literal block (or just dropped out)
779 #
780 if (! $in_literal) {
781 $block .= $line . "\n";
782 if (($line =~ /$sphinx_literal/) || ($line =~ /$sphinx_cblock/)) {
783 $in_literal = 1;
784 $litprefix = "";
785 $output .= highlight_block($block);
786 $block = ""
787 }
788 }
789 }
790
791 if ($block) {
792 $output .= highlight_block($block);
793 }
794 foreach $line (split "\n", $output) {
795 print $lineprefix . $line . "\n";
796 }
797}
798
799sub output_function_rst(%) {
800 my %args = %{$_[0]};
801 my ($parameter, $section);
802 my $oldprefix = $lineprefix;
803 my $start = "";
804 my $is_macro = 0;
805
806 if ($sphinx_major < 3) {
807 if ($args{'typedef'}) {
808 print ".. c:type:: ". $args{'function'} . "\n\n";
809 print_lineno($declaration_start_line);
810 print " **Typedef**: ";
811 $lineprefix = "";
812 output_highlight_rst($args{'purpose'});
813 $start = "\n\n**Syntax**\n\n ``";
814 $is_macro = 1;
815 } else {
816 print ".. c:function:: ";
817 }
818 } else {
819 if ($args{'typedef'} || $args{'functiontype'} eq "") {
820 $is_macro = 1;
821 print ".. c:macro:: ". $args{'function'} . "\n\n";
822 } else {
823 print ".. c:function:: ";
824 }
825
826 if ($args{'typedef'}) {
827 print_lineno($declaration_start_line);
828 print " **Typedef**: ";
829 $lineprefix = "";
830 output_highlight_rst($args{'purpose'});
831 $start = "\n\n**Syntax**\n\n ``";
832 } else {
833 print "``" if ($is_macro);
834 }
835 }
836 if ($args{'functiontype'} ne "") {
837 $start .= $args{'functiontype'} . " " . $args{'function'} . " (";
838 } else {
839 $start .= $args{'function'} . " (";
840 }
841 print $start;
842
843 my $count = 0;
844 foreach my $parameter (@{$args{'parameterlist'}}) {
845 if ($count ne 0) {
846 print ", ";
847 }
848 $count++;
849 $type = $args{'parametertypes'}{$parameter};
850
851 if ($type =~ m/$function_pointer/) {
852 # pointer-to-function
853 print $1 . $parameter . ") (" . $2 . ")";
854 } else {
855 print $type;
856 }
857 }
858 if ($is_macro) {
859 print ")``\n\n";
860 } else {
861 print ")\n\n";
862 }
863 if (!$args{'typedef'}) {
864 print_lineno($declaration_start_line);
865 $lineprefix = " ";
866 output_highlight_rst($args{'purpose'});
867 print "\n";
868 }
869
870 #
871 # Put our descriptive text into a container (thus an HTML <div>) to help
872 # set the function prototypes apart.
873 #
874 print ".. container:: kernelindent\n\n";
875 $lineprefix = " ";
876 print $lineprefix . "**Parameters**\n\n";
877 foreach $parameter (@{$args{'parameterlist'}}) {
878 my $parameter_name = $parameter;
879 $parameter_name =~ s/\[.*//;
880 $type = $args{'parametertypes'}{$parameter};
881
882 if ($type ne "") {
883 print $lineprefix . "``$type``\n";
884 } else {
885 print $lineprefix . "``$parameter``\n";
886 }
887
888 print_lineno($parameterdesc_start_lines{$parameter_name});
889
890 $lineprefix = " ";
891 if (defined($args{'parameterdescs'}{$parameter_name}) &&
892 $args{'parameterdescs'}{$parameter_name} ne $undescribed) {
893 output_highlight_rst($args{'parameterdescs'}{$parameter_name});
894 } else {
895 print $lineprefix . "*undescribed*\n";
896 }
897 $lineprefix = " ";
898 print "\n";
899 }
900
901 output_section_rst(@_);
902 $lineprefix = $oldprefix;
903}
904
905sub output_section_rst(%) {
906 my %args = %{$_[0]};
907 my $section;
908 my $oldprefix = $lineprefix;
909
910 foreach $section (@{$args{'sectionlist'}}) {
911 print $lineprefix . "**$section**\n\n";
912 print_lineno($section_start_lines{$section});
913 output_highlight_rst($args{'sections'}{$section});
914 print "\n";
915 }
916 print "\n";
917}
918
919sub output_enum_rst(%) {
920 my %args = %{$_[0]};
921 my ($parameter);
922 my $oldprefix = $lineprefix;
923 my $count;
924 my $outer;
925
926 if ($sphinx_major < 3) {
927 my $name = "enum " . $args{'enum'};
928 print "\n\n.. c:type:: " . $name . "\n\n";
929 } else {
930 my $name = $args{'enum'};
931 print "\n\n.. c:enum:: " . $name . "\n\n";
932 }
933 print_lineno($declaration_start_line);
934 $lineprefix = " ";
935 output_highlight_rst($args{'purpose'});
936 print "\n";
937
938 print ".. container:: kernelindent\n\n";
939 $outer = $lineprefix . " ";
940 $lineprefix = $outer . " ";
941 print $outer . "**Constants**\n\n";
942 foreach $parameter (@{$args{'parameterlist'}}) {
943 print $outer . "``$parameter``\n";
944
945 if ($args{'parameterdescs'}{$parameter} ne $undescribed) {
946 output_highlight_rst($args{'parameterdescs'}{$parameter});
947 } else {
948 print $lineprefix . "*undescribed*\n";
949 }
950 print "\n";
951 }
952 print "\n";
953 $lineprefix = $oldprefix;
954 output_section_rst(@_);
955}
956
957sub output_typedef_rst(%) {
958 my %args = %{$_[0]};
959 my ($parameter);
960 my $oldprefix = $lineprefix;
961 my $name;
962
963 if ($sphinx_major < 3) {
964 $name = "typedef " . $args{'typedef'};
965 } else {
966 $name = $args{'typedef'};
967 }
968 print "\n\n.. c:type:: " . $name . "\n\n";
969 print_lineno($declaration_start_line);
970 $lineprefix = " ";
971 output_highlight_rst($args{'purpose'});
972 print "\n";
973
974 $lineprefix = $oldprefix;
975 output_section_rst(@_);
976}
977
978sub output_struct_rst(%) {
979 my %args = %{$_[0]};
980 my ($parameter);
981 my $oldprefix = $lineprefix;
982
983 if ($sphinx_major < 3) {
984 my $name = $args{'type'} . " " . $args{'struct'};
985 print "\n\n.. c:type:: " . $name . "\n\n";
986 } else {
987 my $name = $args{'struct'};
988 if ($args{'type'} eq 'union') {
989 print "\n\n.. c:union:: " . $name . "\n\n";
990 } else {
991 print "\n\n.. c:struct:: " . $name . "\n\n";
992 }
993 }
994 print_lineno($declaration_start_line);
995 $lineprefix = " ";
996 output_highlight_rst($args{'purpose'});
997 print "\n";
998
999 print ".. container:: kernelindent\n\n";
1000 print $lineprefix . "**Definition**::\n\n";
1001 my $declaration = $args{'definition'};
1002 $lineprefix = $lineprefix . " ";
1003 $declaration =~ s/\t/$lineprefix/g;
1004 print $lineprefix . $args{'type'} . " " . $args{'struct'} . " {\n$declaration" . $lineprefix . "};\n\n";
1005
1006 $lineprefix = " ";
1007 print $lineprefix . "**Members**\n\n";
1008 foreach $parameter (@{$args{'parameterlist'}}) {
1009 ($parameter =~ /^#/) && next;
1010
1011 my $parameter_name = $parameter;
1012 $parameter_name =~ s/\[.*//;
1013
1014 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1015 $type = $args{'parametertypes'}{$parameter};
1016 print_lineno($parameterdesc_start_lines{$parameter_name});
1017 print $lineprefix . "``" . $parameter . "``\n";
1018 $lineprefix = " ";
1019 output_highlight_rst($args{'parameterdescs'}{$parameter_name});
1020 $lineprefix = " ";
1021 print "\n";
1022 }
1023 print "\n";
1024
1025 $lineprefix = $oldprefix;
1026 output_section_rst(@_);
1027}
1028
1029## none mode output functions
1030
1031sub output_function_none(%) {
1032}
1033
1034sub output_enum_none(%) {
1035}
1036
1037sub output_typedef_none(%) {
1038}
1039
1040sub output_struct_none(%) {
1041}
1042
1043sub output_blockhead_none(%) {
1044}
1045
1046##
1047# generic output function for all types (function, struct/union, typedef, enum);
1048# calls the generated, variable output_ function name based on
1049# functype and output_mode
1050sub output_declaration {
1051 no strict 'refs';
1052 my $name = shift;
1053 my $functype = shift;
1054 my $func = "output_${functype}_$output_mode";
1055
1056 return if (defined($nosymbol_table{$name}));
1057
1058 if (($output_selection == OUTPUT_ALL) ||
1059 (($output_selection == OUTPUT_INCLUDE ||
1060 $output_selection == OUTPUT_EXPORTED) &&
1061 defined($function_table{$name})) ||
1062 ($output_selection == OUTPUT_INTERNAL &&
1063 !($functype eq "function" && defined($function_table{$name}))))
1064 {
1065 &$func(@_);
1066 $section_counter++;
1067 }
1068}
1069
1070##
1071# generic output function - calls the right one based on current output mode.
1072sub output_blockhead {
1073 no strict 'refs';
1074 my $func = "output_blockhead_" . $output_mode;
1075 &$func(@_);
1076 $section_counter++;
1077}
1078
1079##
1080# takes a declaration (struct, union, enum, typedef) and
1081# invokes the right handler. NOT called for functions.
1082sub dump_declaration($$) {
1083 no strict 'refs';
1084 my ($prototype, $file) = @_;
1085 my $func = "dump_" . $decl_type;
1086 &$func(@_);
1087}
1088
1089sub dump_union($$) {
1090 dump_struct(@_);
1091}
1092
1093sub dump_struct($$) {
1094 my $x = shift;
1095 my $file = shift;
1096 my $decl_type;
1097 my $members;
1098 my $type = qr{struct|union};
1099 # For capturing struct/union definition body, i.e. "{members*}qualifiers*"
1100 my $qualifiers = qr{$attribute|__packed|__aligned|____cacheline_aligned_in_smp|____cacheline_aligned};
1101 my $definition_body = qr{\{(.*)\}\s*$qualifiers*};
1102 my $struct_members = qr{($type)([^\{\};]+)\{([^\{\}]*)\}([^\{\}\;]*)\;};
1103
1104 if ($x =~ /($type)\s+(\w+)\s*$definition_body/) {
1105 $decl_type = $1;
1106 $declaration_name = $2;
1107 $members = $3;
1108 } elsif ($x =~ /typedef\s+($type)\s*$definition_body\s*(\w+)\s*;/) {
1109 $decl_type = $1;
1110 $declaration_name = $3;
1111 $members = $2;
1112 }
1113
1114 if ($members) {
1115 if ($identifier ne $declaration_name) {
1116 emit_warning("${file}:$.", "expecting prototype for $decl_type $identifier. Prototype was for $decl_type $declaration_name instead\n");
1117 return;
1118 }
1119
1120 # ignore members marked private:
1121 $members =~ s/\/\*\s*private:.*?\/\*\s*public:.*?\*\///gosi;
1122 $members =~ s/\/\*\s*private:.*//gosi;
1123 # strip comments:
1124 $members =~ s/\/\*.*?\*\///gos;
1125 # strip attributes
1126 $members =~ s/\s*$attribute/ /gi;
1127 $members =~ s/\s*__aligned\s*\([^;]*\)/ /gos;
1128 $members =~ s/\s*__packed\s*/ /gos;
1129 $members =~ s/\s*CRYPTO_MINALIGN_ATTR/ /gos;
1130 $members =~ s/\s*____cacheline_aligned_in_smp/ /gos;
1131 $members =~ s/\s*____cacheline_aligned/ /gos;
1132 # unwrap struct_group():
1133 # - first eat non-declaration parameters and rewrite for final match
1134 # - then remove macro, outer parens, and trailing semicolon
1135 $members =~ s/\bstruct_group\s*\(([^,]*,)/STRUCT_GROUP(/gos;
1136 $members =~ s/\bstruct_group_(attr|tagged)\s*\(([^,]*,){2}/STRUCT_GROUP(/gos;
1137 $members =~ s/\b__struct_group\s*\(([^,]*,){3}/STRUCT_GROUP(/gos;
1138 $members =~ s/\bSTRUCT_GROUP(\(((?:(?>[^)(]+)|(?1))*)\))[^;]*;/$2/gos;
1139
1140 my $args = qr{([^,)]+)};
1141 # replace DECLARE_BITMAP
1142 $members =~ s/__ETHTOOL_DECLARE_LINK_MODE_MASK\s*\(([^\)]+)\)/DECLARE_BITMAP($1, __ETHTOOL_LINK_MODE_MASK_NBITS)/gos;
1143 $members =~ s/DECLARE_PHY_INTERFACE_MASK\s*\(([^\)]+)\)/DECLARE_BITMAP($1, PHY_INTERFACE_MODE_MAX)/gos;
1144 $members =~ s/DECLARE_BITMAP\s*\($args,\s*$args\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
1145 # replace DECLARE_HASHTABLE
1146 $members =~ s/DECLARE_HASHTABLE\s*\($args,\s*$args\)/unsigned long $1\[1 << (($2) - 1)\]/gos;
1147 # replace DECLARE_KFIFO
1148 $members =~ s/DECLARE_KFIFO\s*\($args,\s*$args,\s*$args\)/$2 \*$1/gos;
1149 # replace DECLARE_KFIFO_PTR
1150 $members =~ s/DECLARE_KFIFO_PTR\s*\($args,\s*$args\)/$2 \*$1/gos;
1151 # replace DECLARE_FLEX_ARRAY
1152 $members =~ s/(?:__)?DECLARE_FLEX_ARRAY\s*\($args,\s*$args\)/$1 $2\[\]/gos;
1153 my $declaration = $members;
1154
1155 # Split nested struct/union elements as newer ones
1156 while ($members =~ m/$struct_members/) {
1157 my $newmember;
1158 my $maintype = $1;
1159 my $ids = $4;
1160 my $content = $3;
1161 foreach my $id(split /,/, $ids) {
1162 $newmember .= "$maintype $id; ";
1163
1164 $id =~ s/[:\[].*//;
1165 $id =~ s/^\s*\**(\S+)\s*/$1/;
1166 foreach my $arg (split /;/, $content) {
1167 next if ($arg =~ m/^\s*$/);
1168 if ($arg =~ m/^([^\(]+\(\*?\s*)([\w\.]*)(\s*\).*)/) {
1169 # pointer-to-function
1170 my $type = $1;
1171 my $name = $2;
1172 my $extra = $3;
1173 next if (!$name);
1174 if ($id =~ m/^\s*$/) {
1175 # anonymous struct/union
1176 $newmember .= "$type$name$extra; ";
1177 } else {
1178 $newmember .= "$type$id.$name$extra; ";
1179 }
1180 } else {
1181 my $type;
1182 my $names;
1183 $arg =~ s/^\s+//;
1184 $arg =~ s/\s+$//;
1185 # Handle bitmaps
1186 $arg =~ s/:\s*\d+\s*//g;
1187 # Handle arrays
1188 $arg =~ s/\[.*\]//g;
1189 # The type may have multiple words,
1190 # and multiple IDs can be defined, like:
1191 # const struct foo, *bar, foobar
1192 # So, we remove spaces when parsing the
1193 # names, in order to match just names
1194 # and commas for the names
1195 $arg =~ s/\s*,\s*/,/g;
1196 if ($arg =~ m/(.*)\s+([\S+,]+)/) {
1197 $type = $1;
1198 $names = $2;
1199 } else {
1200 $newmember .= "$arg; ";
1201 next;
1202 }
1203 foreach my $name (split /,/, $names) {
1204 $name =~ s/^\s*\**(\S+)\s*/$1/;
1205 next if (($name =~ m/^\s*$/));
1206 if ($id =~ m/^\s*$/) {
1207 # anonymous struct/union
1208 $newmember .= "$type $name; ";
1209 } else {
1210 $newmember .= "$type $id.$name; ";
1211 }
1212 }
1213 }
1214 }
1215 }
1216 $members =~ s/$struct_members/$newmember/;
1217 }
1218
1219 # Ignore other nested elements, like enums
1220 $members =~ s/(\{[^\{\}]*\})//g;
1221
1222 create_parameterlist($members, ';', $file, $declaration_name);
1223 check_sections($file, $declaration_name, $decl_type, $sectcheck, $struct_actual);
1224
1225 # Adjust declaration for better display
1226 $declaration =~ s/([\{;])/$1\n/g;
1227 $declaration =~ s/\}\s+;/};/g;
1228 # Better handle inlined enums
1229 do {} while ($declaration =~ s/(enum\s+\{[^\}]+),([^\n])/$1,\n$2/);
1230
1231 my @def_args = split /\n/, $declaration;
1232 my $level = 1;
1233 $declaration = "";
1234 foreach my $clause (@def_args) {
1235 $clause =~ s/^\s+//;
1236 $clause =~ s/\s+$//;
1237 $clause =~ s/\s+/ /;
1238 next if (!$clause);
1239 $level-- if ($clause =~ m/(\})/ && $level > 1);
1240 if (!($clause =~ m/^\s*#/)) {
1241 $declaration .= "\t" x $level;
1242 }
1243 $declaration .= "\t" . $clause . "\n";
1244 $level++ if ($clause =~ m/(\{)/ && !($clause =~m/\}/));
1245 }
1246 output_declaration($declaration_name,
1247 'struct',
1248 {'struct' => $declaration_name,
1249 'module' => $modulename,
1250 'definition' => $declaration,
1251 'parameterlist' => \@parameterlist,
1252 'parameterdescs' => \%parameterdescs,
1253 'parametertypes' => \%parametertypes,
1254 'sectionlist' => \@sectionlist,
1255 'sections' => \%sections,
1256 'purpose' => $declaration_purpose,
1257 'type' => $decl_type
1258 });
1259 }
1260 else {
1261 print STDERR "${file}:$.: error: Cannot parse struct or union!\n";
1262 ++$errors;
1263 }
1264}
1265
1266
1267sub show_warnings($$) {
1268 my $functype = shift;
1269 my $name = shift;
1270
1271 return 0 if (defined($nosymbol_table{$name}));
1272
1273 return 1 if ($output_selection == OUTPUT_ALL);
1274
1275 if ($output_selection == OUTPUT_EXPORTED) {
1276 if (defined($function_table{$name})) {
1277 return 1;
1278 } else {
1279 return 0;
1280 }
1281 }
1282 if ($output_selection == OUTPUT_INTERNAL) {
1283 if (!($functype eq "function" && defined($function_table{$name}))) {
1284 return 1;
1285 } else {
1286 return 0;
1287 }
1288 }
1289 if ($output_selection == OUTPUT_INCLUDE) {
1290 if (defined($function_table{$name})) {
1291 return 1;
1292 } else {
1293 return 0;
1294 }
1295 }
1296 die("Please add the new output type at show_warnings()");
1297}
1298
1299sub dump_enum($$) {
1300 my $x = shift;
1301 my $file = shift;
1302 my $members;
1303
1304
1305 $x =~ s@/\*.*?\*/@@gos; # strip comments.
1306 # strip #define macros inside enums
1307 $x =~ s@#\s*((define|ifdef)\s+|endif)[^;]*;@@gos;
1308
1309 if ($x =~ /typedef\s+enum\s*\{(.*)\}\s*(\w*)\s*;/) {
1310 $declaration_name = $2;
1311 $members = $1;
1312 } elsif ($x =~ /enum\s+(\w*)\s*\{(.*)\}/) {
1313 $declaration_name = $1;
1314 $members = $2;
1315 }
1316
1317 if ($members) {
1318 if ($identifier ne $declaration_name) {
1319 if ($identifier eq "") {
1320 emit_warning("${file}:$.", "wrong kernel-doc identifier on line:\n");
1321 } else {
1322 emit_warning("${file}:$.", "expecting prototype for enum $identifier. Prototype was for enum $declaration_name instead\n");
1323 }
1324 return;
1325 }
1326 $declaration_name = "(anonymous)" if ($declaration_name eq "");
1327
1328 my %_members;
1329
1330 $members =~ s/\s+$//;
1331
1332 foreach my $arg (split ',', $members) {
1333 $arg =~ s/^\s*(\w+).*/$1/;
1334 push @parameterlist, $arg;
1335 if (!$parameterdescs{$arg}) {
1336 $parameterdescs{$arg} = $undescribed;
1337 if (show_warnings("enum", $declaration_name)) {
1338 emit_warning("${file}:$.", "Enum value '$arg' not described in enum '$declaration_name'\n");
1339 }
1340 }
1341 $_members{$arg} = 1;
1342 }
1343
1344 while (my ($k, $v) = each %parameterdescs) {
1345 if (!exists($_members{$k})) {
1346 if (show_warnings("enum", $declaration_name)) {
1347 emit_warning("${file}:$.", "Excess enum value '$k' description in '$declaration_name'\n");
1348 }
1349 }
1350 }
1351
1352 output_declaration($declaration_name,
1353 'enum',
1354 {'enum' => $declaration_name,
1355 'module' => $modulename,
1356 'parameterlist' => \@parameterlist,
1357 'parameterdescs' => \%parameterdescs,
1358 'sectionlist' => \@sectionlist,
1359 'sections' => \%sections,
1360 'purpose' => $declaration_purpose
1361 });
1362 } else {
1363 print STDERR "${file}:$.: error: Cannot parse enum!\n";
1364 ++$errors;
1365 }
1366}
1367
1368my $typedef_type = qr { ((?:\s+[\w\*]+\b){1,8})\s* }x;
1369my $typedef_ident = qr { \*?\s*(\w\S+)\s* }x;
1370my $typedef_args = qr { \s*\((.*)\); }x;
1371
1372my $typedef1 = qr { typedef$typedef_type\($typedef_ident\)$typedef_args }x;
1373my $typedef2 = qr { typedef$typedef_type$typedef_ident$typedef_args }x;
1374
1375sub dump_typedef($$) {
1376 my $x = shift;
1377 my $file = shift;
1378
1379 $x =~ s@/\*.*?\*/@@gos; # strip comments.
1380
1381 # Parse function typedef prototypes
1382 if ($x =~ $typedef1 || $x =~ $typedef2) {
1383 $return_type = $1;
1384 $declaration_name = $2;
1385 my $args = $3;
1386 $return_type =~ s/^\s+//;
1387
1388 if ($identifier ne $declaration_name) {
1389 emit_warning("${file}:$.", "expecting prototype for typedef $identifier. Prototype was for typedef $declaration_name instead\n");
1390 return;
1391 }
1392
1393 create_parameterlist($args, ',', $file, $declaration_name);
1394
1395 output_declaration($declaration_name,
1396 'function',
1397 {'function' => $declaration_name,
1398 'typedef' => 1,
1399 'module' => $modulename,
1400 'functiontype' => $return_type,
1401 'parameterlist' => \@parameterlist,
1402 'parameterdescs' => \%parameterdescs,
1403 'parametertypes' => \%parametertypes,
1404 'sectionlist' => \@sectionlist,
1405 'sections' => \%sections,
1406 'purpose' => $declaration_purpose
1407 });
1408 return;
1409 }
1410
1411 while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
1412 $x =~ s/\(*.\)\s*;$/;/;
1413 $x =~ s/\[*.\]\s*;$/;/;
1414 }
1415
1416 if ($x =~ /typedef.*\s+(\w+)\s*;/) {
1417 $declaration_name = $1;
1418
1419 if ($identifier ne $declaration_name) {
1420 emit_warning("${file}:$.", "expecting prototype for typedef $identifier. Prototype was for typedef $declaration_name instead\n");
1421 return;
1422 }
1423
1424 output_declaration($declaration_name,
1425 'typedef',
1426 {'typedef' => $declaration_name,
1427 'module' => $modulename,
1428 'sectionlist' => \@sectionlist,
1429 'sections' => \%sections,
1430 'purpose' => $declaration_purpose
1431 });
1432 }
1433 else {
1434 print STDERR "${file}:$.: error: Cannot parse typedef!\n";
1435 ++$errors;
1436 }
1437}
1438
1439sub save_struct_actual($) {
1440 my $actual = shift;
1441
1442 # strip all spaces from the actual param so that it looks like one string item
1443 $actual =~ s/\s*//g;
1444 $struct_actual = $struct_actual . $actual . " ";
1445}
1446
1447sub create_parameterlist($$$$) {
1448 my $args = shift;
1449 my $splitter = shift;
1450 my $file = shift;
1451 my $declaration_name = shift;
1452 my $type;
1453 my $param;
1454
1455 # temporarily replace commas inside function pointer definition
1456 my $arg_expr = qr{\([^\),]+};
1457 while ($args =~ /$arg_expr,/) {
1458 $args =~ s/($arg_expr),/$1#/g;
1459 }
1460
1461 foreach my $arg (split($splitter, $args)) {
1462 # strip comments
1463 $arg =~ s/\/\*.*\*\///;
1464 # ignore argument attributes
1465 $arg =~ s/\sPOS0?\s/ /;
1466 # strip leading/trailing spaces
1467 $arg =~ s/^\s*//;
1468 $arg =~ s/\s*$//;
1469 $arg =~ s/\s+/ /;
1470
1471 if ($arg =~ /^#/) {
1472 # Treat preprocessor directive as a typeless variable just to fill
1473 # corresponding data structures "correctly". Catch it later in
1474 # output_* subs.
1475 push_parameter($arg, "", "", $file);
1476 } elsif ($arg =~ m/\(.+\)\s*\(/) {
1477 # pointer-to-function
1478 $arg =~ tr/#/,/;
1479 $arg =~ m/[^\(]+\(\*?\s*([\w\[\]\.]*)\s*\)/;
1480 $param = $1;
1481 $type = $arg;
1482 $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
1483 save_struct_actual($param);
1484 push_parameter($param, $type, $arg, $file, $declaration_name);
1485 } elsif ($arg) {
1486 $arg =~ s/\s*:\s*/:/g;
1487 $arg =~ s/\s*\[/\[/g;
1488
1489 my @args = split('\s*,\s*', $arg);
1490 if ($args[0] =~ m/\*/) {
1491 $args[0] =~ s/(\*+)\s*/ $1/;
1492 }
1493
1494 my @first_arg;
1495 if ($args[0] =~ /^(.*\s+)(.*?\[.*\].*)$/) {
1496 shift @args;
1497 push(@first_arg, split('\s+', $1));
1498 push(@first_arg, $2);
1499 } else {
1500 @first_arg = split('\s+', shift @args);
1501 }
1502
1503 unshift(@args, pop @first_arg);
1504 $type = join " ", @first_arg;
1505
1506 foreach $param (@args) {
1507 if ($param =~ m/^(\*+)\s*(.*)/) {
1508 save_struct_actual($2);
1509
1510 push_parameter($2, "$type $1", $arg, $file, $declaration_name);
1511 }
1512 elsif ($param =~ m/(.*?):(\d+)/) {
1513 if ($type ne "") { # skip unnamed bit-fields
1514 save_struct_actual($1);
1515 push_parameter($1, "$type:$2", $arg, $file, $declaration_name)
1516 }
1517 }
1518 else {
1519 save_struct_actual($param);
1520 push_parameter($param, $type, $arg, $file, $declaration_name);
1521 }
1522 }
1523 }
1524 }
1525}
1526
1527sub push_parameter($$$$$) {
1528 my $param = shift;
1529 my $type = shift;
1530 my $org_arg = shift;
1531 my $file = shift;
1532 my $declaration_name = shift;
1533
1534 if (($anon_struct_union == 1) && ($type eq "") &&
1535 ($param eq "}")) {
1536 return; # ignore the ending }; from anon. struct/union
1537 }
1538
1539 $anon_struct_union = 0;
1540 $param =~ s/[\[\)].*//;
1541
1542 if ($type eq "" && $param =~ /\.\.\.$/)
1543 {
1544 if (!$param =~ /\w\.\.\.$/) {
1545 # handles unnamed variable parameters
1546 $param = "...";
1547 }
1548 elsif ($param =~ /\w\.\.\.$/) {
1549 # for named variable parameters of the form `x...`, remove the dots
1550 $param =~ s/\.\.\.$//;
1551 }
1552 if (!defined $parameterdescs{$param} || $parameterdescs{$param} eq "") {
1553 $parameterdescs{$param} = "variable arguments";
1554 }
1555 }
1556 elsif ($type eq "" && ($param eq "" or $param eq "void"))
1557 {
1558 $param="void";
1559 $parameterdescs{void} = "no arguments";
1560 }
1561 elsif ($type eq "" && ($param eq "struct" or $param eq "union"))
1562 # handle unnamed (anonymous) union or struct:
1563 {
1564 $type = $param;
1565 $param = "{unnamed_" . $param . "}";
1566 $parameterdescs{$param} = "anonymous\n";
1567 $anon_struct_union = 1;
1568 }
1569
1570 # warn if parameter has no description
1571 # (but ignore ones starting with # as these are not parameters
1572 # but inline preprocessor statements);
1573 # Note: It will also ignore void params and unnamed structs/unions
1574 if (!defined $parameterdescs{$param} && $param !~ /^#/) {
1575 $parameterdescs{$param} = $undescribed;
1576
1577 if (show_warnings($type, $declaration_name) && $param !~ /\./) {
1578 emit_warning("${file}:$.", "Function parameter or member '$param' not described in '$declaration_name'\n");
1579 }
1580 }
1581
1582 # strip spaces from $param so that it is one continuous string
1583 # on @parameterlist;
1584 # this fixes a problem where check_sections() cannot find
1585 # a parameter like "addr[6 + 2]" because it actually appears
1586 # as "addr[6", "+", "2]" on the parameter list;
1587 # but it's better to maintain the param string unchanged for output,
1588 # so just weaken the string compare in check_sections() to ignore
1589 # "[blah" in a parameter string;
1590 ###$param =~ s/\s*//g;
1591 push @parameterlist, $param;
1592 $org_arg =~ s/\s\s+/ /g;
1593 $parametertypes{$param} = $org_arg;
1594}
1595
1596sub check_sections($$$$$) {
1597 my ($file, $decl_name, $decl_type, $sectcheck, $prmscheck) = @_;
1598 my @sects = split ' ', $sectcheck;
1599 my @prms = split ' ', $prmscheck;
1600 my $err;
1601 my ($px, $sx);
1602 my $prm_clean; # strip trailing "[array size]" and/or beginning "*"
1603
1604 foreach $sx (0 .. $#sects) {
1605 $err = 1;
1606 foreach $px (0 .. $#prms) {
1607 $prm_clean = $prms[$px];
1608 $prm_clean =~ s/\[.*\]//;
1609 $prm_clean =~ s/$attribute//i;
1610 # ignore array size in a parameter string;
1611 # however, the original param string may contain
1612 # spaces, e.g.: addr[6 + 2]
1613 # and this appears in @prms as "addr[6" since the
1614 # parameter list is split at spaces;
1615 # hence just ignore "[..." for the sections check;
1616 $prm_clean =~ s/\[.*//;
1617
1618 ##$prm_clean =~ s/^\**//;
1619 if ($prm_clean eq $sects[$sx]) {
1620 $err = 0;
1621 last;
1622 }
1623 }
1624 if ($err) {
1625 if ($decl_type eq "function") {
1626 emit_warning("${file}:$.",
1627 "Excess function parameter " .
1628 "'$sects[$sx]' " .
1629 "description in '$decl_name'\n");
1630 }
1631 }
1632 }
1633}
1634
1635##
1636# Checks the section describing the return value of a function.
1637sub check_return_section {
1638 my $file = shift;
1639 my $declaration_name = shift;
1640 my $return_type = shift;
1641
1642 # Ignore an empty return type (It's a macro)
1643 # Ignore functions with a "void" return type. (But don't ignore "void *")
1644 if (($return_type eq "") || ($return_type =~ /void\s*\w*\s*$/)) {
1645 return;
1646 }
1647
1648 if (!defined($sections{$section_return}) ||
1649 $sections{$section_return} eq "") {
1650 emit_warning("${file}:$.",
1651 "No description found for return value of " .
1652 "'$declaration_name'\n");
1653 }
1654}
1655
1656##
1657# takes a function prototype and the name of the current file being
1658# processed and spits out all the details stored in the global
1659# arrays/hashes.
1660sub dump_function($$) {
1661 my $prototype = shift;
1662 my $file = shift;
1663 my $noret = 0;
1664
1665 print_lineno($new_start_line);
1666
1667 $prototype =~ s/^static +//;
1668 $prototype =~ s/^extern +//;
1669 $prototype =~ s/^asmlinkage +//;
1670 $prototype =~ s/^inline +//;
1671 $prototype =~ s/^__inline__ +//;
1672 $prototype =~ s/^__inline +//;
1673 $prototype =~ s/^__always_inline +//;
1674 $prototype =~ s/^noinline +//;
1675 $prototype =~ s/^__FORTIFY_INLINE +//;
1676 $prototype =~ s/__init +//;
1677 $prototype =~ s/__init_or_module +//;
1678 $prototype =~ s/__deprecated +//;
1679 $prototype =~ s/__flatten +//;
1680 $prototype =~ s/__meminit +//;
1681 $prototype =~ s/__must_check +//;
1682 $prototype =~ s/__weak +//;
1683 $prototype =~ s/__sched +//;
1684 $prototype =~ s/__printf\s*\(\s*\d*\s*,\s*\d*\s*\) +//;
1685 $prototype =~ s/__(?:re)?alloc_size\s*\(\s*\d+\s*(?:,\s*\d+\s*)?\) +//;
1686 $prototype =~ s/__diagnose_as\s*\(\s*\S+\s*(?:,\s*\d+\s*)*\) +//;
1687 my $define = $prototype =~ s/^#\s*define\s+//; #ak added
1688 $prototype =~ s/__attribute_const__ +//;
1689 $prototype =~ s/__attribute__\s*\(\(
1690 (?:
1691 [\w\s]++ # attribute name
1692 (?:\([^)]*+\))? # attribute arguments
1693 \s*+,? # optional comma at the end
1694 )+
1695 \)\)\s+//x;
1696
1697 # Yes, this truly is vile. We are looking for:
1698 # 1. Return type (may be nothing if we're looking at a macro)
1699 # 2. Function name
1700 # 3. Function parameters.
1701 #
1702 # All the while we have to watch out for function pointer parameters
1703 # (which IIRC is what the two sections are for), C types (these
1704 # regexps don't even start to express all the possibilities), and
1705 # so on.
1706 #
1707 # If you mess with these regexps, it's a good idea to check that
1708 # the following functions' documentation still comes out right:
1709 # - parport_register_device (function pointer parameters)
1710 # - atomic_set (macro)
1711 # - pci_match_device, __copy_to_user (long return type)
1712 my $name = qr{[a-zA-Z0-9_~:]+};
1713 my $prototype_end1 = qr{[^\(]*};
1714 my $prototype_end2 = qr{[^\{]*};
1715 my $prototype_end = qr{\(($prototype_end1|$prototype_end2)\)};
1716 my $type1 = qr{[\w\s]+};
1717 my $type2 = qr{$type1\*+};
1718
1719 if ($define && $prototype =~ m/^()($name)\s+/) {
1720 # This is an object-like macro, it has no return type and no parameter
1721 # list.
1722 # Function-like macros are not allowed to have spaces between
1723 # declaration_name and opening parenthesis (notice the \s+).
1724 $return_type = $1;
1725 $declaration_name = $2;
1726 $noret = 1;
1727 } elsif ($prototype =~ m/^()($name)\s*$prototype_end/ ||
1728 $prototype =~ m/^($type1)\s+($name)\s*$prototype_end/ ||
1729 $prototype =~ m/^($type2+)\s*($name)\s*$prototype_end/) {
1730 $return_type = $1;
1731 $declaration_name = $2;
1732 my $args = $3;
1733
1734 create_parameterlist($args, ',', $file, $declaration_name);
1735 } else {
1736 emit_warning("${file}:$.", "cannot understand function prototype: '$prototype'\n");
1737 return;
1738 }
1739
1740 if ($identifier ne $declaration_name) {
1741 emit_warning("${file}:$.", "expecting prototype for $identifier(). Prototype was for $declaration_name() instead\n");
1742 return;
1743 }
1744
1745 my $prms = join " ", @parameterlist;
1746 check_sections($file, $declaration_name, "function", $sectcheck, $prms);
1747
1748 # This check emits a lot of warnings at the moment, because many
1749 # functions don't have a 'Return' doc section. So until the number
1750 # of warnings goes sufficiently down, the check is only performed in
1751 # verbose mode.
1752 # TODO: always perform the check.
1753 if ($verbose && !$noret) {
1754 check_return_section($file, $declaration_name, $return_type);
1755 }
1756
1757 # The function parser can be called with a typedef parameter.
1758 # Handle it.
1759 if ($return_type =~ /typedef/) {
1760 output_declaration($declaration_name,
1761 'function',
1762 {'function' => $declaration_name,
1763 'typedef' => 1,
1764 'module' => $modulename,
1765 'functiontype' => $return_type,
1766 'parameterlist' => \@parameterlist,
1767 'parameterdescs' => \%parameterdescs,
1768 'parametertypes' => \%parametertypes,
1769 'sectionlist' => \@sectionlist,
1770 'sections' => \%sections,
1771 'purpose' => $declaration_purpose
1772 });
1773 } else {
1774 output_declaration($declaration_name,
1775 'function',
1776 {'function' => $declaration_name,
1777 'module' => $modulename,
1778 'functiontype' => $return_type,
1779 'parameterlist' => \@parameterlist,
1780 'parameterdescs' => \%parameterdescs,
1781 'parametertypes' => \%parametertypes,
1782 'sectionlist' => \@sectionlist,
1783 'sections' => \%sections,
1784 'purpose' => $declaration_purpose
1785 });
1786 }
1787}
1788
1789sub reset_state {
1790 $function = "";
1791 %parameterdescs = ();
1792 %parametertypes = ();
1793 @parameterlist = ();
1794 %sections = ();
1795 @sectionlist = ();
1796 $sectcheck = "";
1797 $struct_actual = "";
1798 $prototype = "";
1799
1800 $state = STATE_NORMAL;
1801 $inline_doc_state = STATE_INLINE_NA;
1802}
1803
1804sub tracepoint_munge($) {
1805 my $file = shift;
1806 my $tracepointname = 0;
1807 my $tracepointargs = 0;
1808
1809 if ($prototype =~ m/TRACE_EVENT\((.*?),/) {
1810 $tracepointname = $1;
1811 }
1812 if ($prototype =~ m/DEFINE_SINGLE_EVENT\((.*?),/) {
1813 $tracepointname = $1;
1814 }
1815 if ($prototype =~ m/DEFINE_EVENT\((.*?),(.*?),/) {
1816 $tracepointname = $2;
1817 }
1818 $tracepointname =~ s/^\s+//; #strip leading whitespace
1819 if ($prototype =~ m/TP_PROTO\((.*?)\)/) {
1820 $tracepointargs = $1;
1821 }
1822 if (($tracepointname eq 0) || ($tracepointargs eq 0)) {
1823 emit_warning("${file}:$.", "Unrecognized tracepoint format: \n".
1824 "$prototype\n");
1825 } else {
1826 $prototype = "static inline void trace_$tracepointname($tracepointargs)";
1827 $identifier = "trace_$identifier";
1828 }
1829}
1830
1831sub syscall_munge() {
1832 my $void = 0;
1833
1834 $prototype =~ s@[\r\n]+@ @gos; # strip newlines/CR's
1835## if ($prototype =~ m/SYSCALL_DEFINE0\s*\(\s*(a-zA-Z0-9_)*\s*\)/) {
1836 if ($prototype =~ m/SYSCALL_DEFINE0/) {
1837 $void = 1;
1838## $prototype = "long sys_$1(void)";
1839 }
1840
1841 $prototype =~ s/SYSCALL_DEFINE.*\(/long sys_/; # fix return type & func name
1842 if ($prototype =~ m/long (sys_.*?),/) {
1843 $prototype =~ s/,/\(/;
1844 } elsif ($void) {
1845 $prototype =~ s/\)/\(void\)/;
1846 }
1847
1848 # now delete all of the odd-number commas in $prototype
1849 # so that arg types & arg names don't have a comma between them
1850 my $count = 0;
1851 my $len = length($prototype);
1852 if ($void) {
1853 $len = 0; # skip the for-loop
1854 }
1855 for (my $ix = 0; $ix < $len; $ix++) {
1856 if (substr($prototype, $ix, 1) eq ',') {
1857 $count++;
1858 if ($count % 2 == 1) {
1859 substr($prototype, $ix, 1) = ' ';
1860 }
1861 }
1862 }
1863}
1864
1865sub process_proto_function($$) {
1866 my $x = shift;
1867 my $file = shift;
1868
1869 $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
1870
1871 if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#\s*define/)) {
1872 # do nothing
1873 }
1874 elsif ($x =~ /([^\{]*)/) {
1875 $prototype .= $1;
1876 }
1877
1878 if (($x =~ /\{/) || ($x =~ /\#\s*define/) || ($x =~ /;/)) {
1879 $prototype =~ s@/\*.*?\*/@@gos; # strip comments.
1880 $prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
1881 $prototype =~ s@^\s+@@gos; # strip leading spaces
1882
1883 # Handle prototypes for function pointers like:
1884 # int (*pcs_config)(struct foo)
1885 $prototype =~ s@^(\S+\s+)\(\s*\*(\S+)\)@$1$2@gos;
1886
1887 if ($prototype =~ /SYSCALL_DEFINE/) {
1888 syscall_munge();
1889 }
1890 if ($prototype =~ /TRACE_EVENT/ || $prototype =~ /DEFINE_EVENT/ ||
1891 $prototype =~ /DEFINE_SINGLE_EVENT/)
1892 {
1893 tracepoint_munge($file);
1894 }
1895 dump_function($prototype, $file);
1896 reset_state();
1897 }
1898}
1899
1900sub process_proto_type($$) {
1901 my $x = shift;
1902 my $file = shift;
1903
1904 $x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
1905 $x =~ s@^\s+@@gos; # strip leading spaces
1906 $x =~ s@\s+$@@gos; # strip trailing spaces
1907 $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
1908
1909 if ($x =~ /^#/) {
1910 # To distinguish preprocessor directive from regular declaration later.
1911 $x .= ";";
1912 }
1913
1914 while (1) {
1915 if ( $x =~ /([^\{\};]*)([\{\};])(.*)/ ) {
1916 if( length $prototype ) {
1917 $prototype .= " "
1918 }
1919 $prototype .= $1 . $2;
1920 ($2 eq '{') && $brcount++;
1921 ($2 eq '}') && $brcount--;
1922 if (($2 eq ';') && ($brcount == 0)) {
1923 dump_declaration($prototype, $file);
1924 reset_state();
1925 last;
1926 }
1927 $x = $3;
1928 } else {
1929 $prototype .= $x;
1930 last;
1931 }
1932 }
1933}
1934
1935
1936sub map_filename($) {
1937 my $file;
1938 my ($orig_file) = @_;
1939
1940 if (defined($ENV{'SRCTREE'})) {
1941 $file = "$ENV{'SRCTREE'}" . "/" . $orig_file;
1942 } else {
1943 $file = $orig_file;
1944 }
1945
1946 if (defined($source_map{$file})) {
1947 $file = $source_map{$file};
1948 }
1949
1950 return $file;
1951}
1952
1953sub process_export_file($) {
1954 my ($orig_file) = @_;
1955 my $file = map_filename($orig_file);
1956
1957 if (!open(IN,"<$file")) {
1958 print STDERR "Error: Cannot open file $file\n";
1959 ++$errors;
1960 return;
1961 }
1962
1963 while (<IN>) {
1964 if (/$export_symbol/) {
1965 next if (defined($nosymbol_table{$2}));
1966 $function_table{$2} = 1;
1967 }
1968 if (/$export_symbol_ns/) {
1969 next if (defined($nosymbol_table{$2}));
1970 $function_table{$2} = 1;
1971 }
1972 }
1973
1974 close(IN);
1975}
1976
1977#
1978# Parsers for the various processing states.
1979#
1980# STATE_NORMAL: looking for the /** to begin everything.
1981#
1982sub process_normal() {
1983 if (/$doc_start/o) {
1984 $state = STATE_NAME; # next line is always the function name
1985 $in_doc_sect = 0;
1986 $declaration_start_line = $. + 1;
1987 }
1988}
1989
1990#
1991# STATE_NAME: Looking for the "name - description" line
1992#
1993sub process_name($$) {
1994 my $file = shift;
1995 my $descr;
1996
1997 if (/$doc_block/o) {
1998 $state = STATE_DOCBLOCK;
1999 $contents = "";
2000 $new_start_line = $.;
2001
2002 if ( $1 eq "" ) {
2003 $section = $section_intro;
2004 } else {
2005 $section = $1;
2006 }
2007 } elsif (/$doc_decl/o) {
2008 $identifier = $1;
2009 my $is_kernel_comment = 0;
2010 my $decl_start = qr{$doc_com};
2011 # test for pointer declaration type, foo * bar() - desc
2012 my $fn_type = qr{\w+\s*\*\s*};
2013 my $parenthesis = qr{\(\w*\)};
2014 my $decl_end = qr{[-:].*};
2015 if (/^$decl_start([\w\s]+?)$parenthesis?\s*$decl_end?$/) {
2016 $identifier = $1;
2017 }
2018 if ($identifier =~ m/^(struct|union|enum|typedef)\b\s*(\S*)/) {
2019 $decl_type = $1;
2020 $identifier = $2;
2021 $is_kernel_comment = 1;
2022 }
2023 # Look for foo() or static void foo() - description; or misspelt
2024 # identifier
2025 elsif (/^$decl_start$fn_type?(\w+)\s*$parenthesis?\s*$decl_end?$/ ||
2026 /^$decl_start$fn_type?(\w+.*)$parenthesis?\s*$decl_end$/) {
2027 $identifier = $1;
2028 $decl_type = 'function';
2029 $identifier =~ s/^define\s+//;
2030 $is_kernel_comment = 1;
2031 }
2032 $identifier =~ s/\s+$//;
2033
2034 $state = STATE_BODY;
2035 # if there's no @param blocks need to set up default section
2036 # here
2037 $contents = "";
2038 $section = $section_default;
2039 $new_start_line = $. + 1;
2040 if (/[-:](.*)/) {
2041 # strip leading/trailing/multiple spaces
2042 $descr= $1;
2043 $descr =~ s/^\s*//;
2044 $descr =~ s/\s*$//;
2045 $descr =~ s/\s+/ /g;
2046 $declaration_purpose = $descr;
2047 $state = STATE_BODY_MAYBE;
2048 } else {
2049 $declaration_purpose = "";
2050 }
2051
2052 if (!$is_kernel_comment) {
2053 emit_warning("${file}:$.", "This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst\n$_");
2054 $state = STATE_NORMAL;
2055 }
2056
2057 if (($declaration_purpose eq "") && $verbose) {
2058 emit_warning("${file}:$.", "missing initial short description on line:\n$_");
2059 }
2060
2061 if ($identifier eq "" && $decl_type ne "enum") {
2062 emit_warning("${file}:$.", "wrong kernel-doc identifier on line:\n$_");
2063 $state = STATE_NORMAL;
2064 }
2065
2066 if ($verbose) {
2067 print STDERR "${file}:$.: info: Scanning doc for $decl_type $identifier\n";
2068 }
2069 } else {
2070 emit_warning("${file}:$.", "Cannot understand $_ on line $. - I thought it was a doc line\n");
2071 $state = STATE_NORMAL;
2072 }
2073}
2074
2075
2076#
2077# STATE_BODY and STATE_BODY_MAYBE: the bulk of a kerneldoc comment.
2078#
2079sub process_body($$) {
2080 my $file = shift;
2081
2082 # Until all named variable macro parameters are
2083 # documented using the bare name (`x`) rather than with
2084 # dots (`x...`), strip the dots:
2085 if ($section =~ /\w\.\.\.$/) {
2086 $section =~ s/\.\.\.$//;
2087
2088 if ($verbose) {
2089 emit_warning("${file}:$.", "Variable macro arguments should be documented without dots\n");
2090 }
2091 }
2092
2093 if ($state == STATE_BODY_WITH_BLANK_LINE && /^\s*\*\s?\S/) {
2094 dump_section($file, $section, $contents);
2095 $section = $section_default;
2096 $new_start_line = $.;
2097 $contents = "";
2098 }
2099
2100 if (/$doc_sect/i) { # case insensitive for supported section names
2101 $newsection = $1;
2102 $newcontents = $2;
2103
2104 # map the supported section names to the canonical names
2105 if ($newsection =~ m/^description$/i) {
2106 $newsection = $section_default;
2107 } elsif ($newsection =~ m/^context$/i) {
2108 $newsection = $section_context;
2109 } elsif ($newsection =~ m/^returns?$/i) {
2110 $newsection = $section_return;
2111 } elsif ($newsection =~ m/^\@return$/) {
2112 # special: @return is a section, not a param description
2113 $newsection = $section_return;
2114 }
2115
2116 if (($contents ne "") && ($contents ne "\n")) {
2117 if (!$in_doc_sect && $verbose) {
2118 emit_warning("${file}:$.", "contents before sections\n");
2119 }
2120 dump_section($file, $section, $contents);
2121 $section = $section_default;
2122 }
2123
2124 $in_doc_sect = 1;
2125 $state = STATE_BODY;
2126 $contents = $newcontents;
2127 $new_start_line = $.;
2128 while (substr($contents, 0, 1) eq " ") {
2129 $contents = substr($contents, 1);
2130 }
2131 if ($contents ne "") {
2132 $contents .= "\n";
2133 }
2134 $section = $newsection;
2135 $leading_space = undef;
2136 } elsif (/$doc_end/) {
2137 if (($contents ne "") && ($contents ne "\n")) {
2138 dump_section($file, $section, $contents);
2139 $section = $section_default;
2140 $contents = "";
2141 }
2142 # look for doc_com + <text> + doc_end:
2143 if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
2144 emit_warning("${file}:$.", "suspicious ending line: $_");
2145 }
2146
2147 $prototype = "";
2148 $state = STATE_PROTO;
2149 $brcount = 0;
2150 $new_start_line = $. + 1;
2151 } elsif (/$doc_content/) {
2152 if ($1 eq "") {
2153 if ($section eq $section_context) {
2154 dump_section($file, $section, $contents);
2155 $section = $section_default;
2156 $contents = "";
2157 $new_start_line = $.;
2158 $state = STATE_BODY;
2159 } else {
2160 if ($section ne $section_default) {
2161 $state = STATE_BODY_WITH_BLANK_LINE;
2162 } else {
2163 $state = STATE_BODY;
2164 }
2165 $contents .= "\n";
2166 }
2167 } elsif ($state == STATE_BODY_MAYBE) {
2168 # Continued declaration purpose
2169 chomp($declaration_purpose);
2170 $declaration_purpose .= " " . $1;
2171 $declaration_purpose =~ s/\s+/ /g;
2172 } else {
2173 my $cont = $1;
2174 if ($section =~ m/^@/ || $section eq $section_context) {
2175 if (!defined $leading_space) {
2176 if ($cont =~ m/^(\s+)/) {
2177 $leading_space = $1;
2178 } else {
2179 $leading_space = "";
2180 }
2181 }
2182 $cont =~ s/^$leading_space//;
2183 }
2184 $contents .= $cont . "\n";
2185 }
2186 } else {
2187 # i dont know - bad line? ignore.
2188 emit_warning("${file}:$.", "bad line: $_");
2189 }
2190}
2191
2192
2193#
2194# STATE_PROTO: reading a function/whatever prototype.
2195#
2196sub process_proto($$) {
2197 my $file = shift;
2198
2199 if (/$doc_inline_oneline/) {
2200 $section = $1;
2201 $contents = $2;
2202 if ($contents ne "") {
2203 $contents .= "\n";
2204 dump_section($file, $section, $contents);
2205 $section = $section_default;
2206 $contents = "";
2207 }
2208 } elsif (/$doc_inline_start/) {
2209 $state = STATE_INLINE;
2210 $inline_doc_state = STATE_INLINE_NAME;
2211 } elsif ($decl_type eq 'function') {
2212 process_proto_function($_, $file);
2213 } else {
2214 process_proto_type($_, $file);
2215 }
2216}
2217
2218#
2219# STATE_DOCBLOCK: within a DOC: block.
2220#
2221sub process_docblock($$) {
2222 my $file = shift;
2223
2224 if (/$doc_end/) {
2225 dump_doc_section($file, $section, $contents);
2226 $section = $section_default;
2227 $contents = "";
2228 $function = "";
2229 %parameterdescs = ();
2230 %parametertypes = ();
2231 @parameterlist = ();
2232 %sections = ();
2233 @sectionlist = ();
2234 $prototype = "";
2235 $state = STATE_NORMAL;
2236 } elsif (/$doc_content/) {
2237 if ( $1 eq "" ) {
2238 $contents .= $blankline;
2239 } else {
2240 $contents .= $1 . "\n";
2241 }
2242 }
2243}
2244
2245#
2246# STATE_INLINE: docbook comments within a prototype.
2247#
2248sub process_inline($$) {
2249 my $file = shift;
2250
2251 # First line (state 1) needs to be a @parameter
2252 if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
2253 $section = $1;
2254 $contents = $2;
2255 $new_start_line = $.;
2256 if ($contents ne "") {
2257 while (substr($contents, 0, 1) eq " ") {
2258 $contents = substr($contents, 1);
2259 }
2260 $contents .= "\n";
2261 }
2262 $inline_doc_state = STATE_INLINE_TEXT;
2263 # Documentation block end */
2264 } elsif (/$doc_inline_end/) {
2265 if (($contents ne "") && ($contents ne "\n")) {
2266 dump_section($file, $section, $contents);
2267 $section = $section_default;
2268 $contents = "";
2269 }
2270 $state = STATE_PROTO;
2271 $inline_doc_state = STATE_INLINE_NA;
2272 # Regular text
2273 } elsif (/$doc_content/) {
2274 if ($inline_doc_state == STATE_INLINE_TEXT) {
2275 $contents .= $1 . "\n";
2276 # nuke leading blank lines
2277 if ($contents =~ /^\s*$/) {
2278 $contents = "";
2279 }
2280 } elsif ($inline_doc_state == STATE_INLINE_NAME) {
2281 $inline_doc_state = STATE_INLINE_ERROR;
2282 emit_warning("${file}:$.", "Incorrect use of kernel-doc format: $_");
2283 }
2284 }
2285}
2286
2287
2288sub process_file($) {
2289 my $file;
2290 my $initial_section_counter = $section_counter;
2291 my ($orig_file) = @_;
2292
2293 $file = map_filename($orig_file);
2294
2295 if (!open(IN_FILE,"<$file")) {
2296 print STDERR "Error: Cannot open file $file\n";
2297 ++$errors;
2298 return;
2299 }
2300
2301 $. = 1;
2302
2303 $section_counter = 0;
2304 while (<IN_FILE>) {
2305 while (s/\\\s*$//) {
2306 $_ .= <IN_FILE>;
2307 }
2308 # Replace tabs by spaces
2309 while ($_ =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {};
2310 # Hand this line to the appropriate state handler
2311 if ($state == STATE_NORMAL) {
2312 process_normal();
2313 } elsif ($state == STATE_NAME) {
2314 process_name($file, $_);
2315 } elsif ($state == STATE_BODY || $state == STATE_BODY_MAYBE ||
2316 $state == STATE_BODY_WITH_BLANK_LINE) {
2317 process_body($file, $_);
2318 } elsif ($state == STATE_INLINE) { # scanning for inline parameters
2319 process_inline($file, $_);
2320 } elsif ($state == STATE_PROTO) {
2321 process_proto($file, $_);
2322 } elsif ($state == STATE_DOCBLOCK) {
2323 process_docblock($file, $_);
2324 }
2325 }
2326
2327 # Make sure we got something interesting.
2328 if ($initial_section_counter == $section_counter && $
2329 output_mode ne "none") {
2330 if ($output_selection == OUTPUT_INCLUDE) {
2331 emit_warning("${file}:1", "'$_' not found\n")
2332 for keys %function_table;
2333 }
2334 else {
2335 emit_warning("${file}:1", "no structured comments found\n");
2336 }
2337 }
2338 close IN_FILE;
2339}
2340
2341
2342if ($output_mode eq "rst") {
2343 get_sphinx_version() if (!$sphinx_major);
2344}
2345
2346$kernelversion = get_kernel_version();
2347
2348# generate a sequence of code that will splice in highlighting information
2349# using the s// operator.
2350for (my $k = 0; $k < @highlights; $k++) {
2351 my $pattern = $highlights[$k][0];
2352 my $result = $highlights[$k][1];
2353# print STDERR "scanning pattern:$pattern, highlight:($result)\n";
2354 $dohighlight .= "\$contents =~ s:$pattern:$result:gs;\n";
2355}
2356
2357# Read the file that maps relative names to absolute names for
2358# separate source and object directories and for shadow trees.
2359if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
2360 my ($relname, $absname);
2361 while(<SOURCE_MAP>) {
2362 chop();
2363 ($relname, $absname) = (split())[0..1];
2364 $relname =~ s:^/+::;
2365 $source_map{$relname} = $absname;
2366 }
2367 close(SOURCE_MAP);
2368}
2369
2370if ($output_selection == OUTPUT_EXPORTED ||
2371 $output_selection == OUTPUT_INTERNAL) {
2372
2373 push(@export_file_list, @ARGV);
2374
2375 foreach (@export_file_list) {
2376 chomp;
2377 process_export_file($_);
2378 }
2379}
2380
2381foreach (@ARGV) {
2382 chomp;
2383 process_file($_);
2384}
2385if ($verbose && $errors) {
2386 print STDERR "$errors errors\n";
2387}
2388if ($verbose && $warnings) {
2389 print STDERR "$warnings warnings\n";
2390}
2391
2392if ($Werror && $warnings) {
2393 print STDERR "$warnings warnings as Errors\n";
2394 exit($warnings);
2395} else {
2396 exit($output_mode eq "none" ? 0 : $errors)
2397}
2398
2399__END__
2400
2401=head1 OPTIONS
2402
2403=head2 Output format selection (mutually exclusive):
2404
2405=over 8
2406
2407=item -man
2408
2409Output troff manual page format.
2410
2411=item -rst
2412
2413Output reStructuredText format. This is the default.
2414
2415=item -none
2416
2417Do not output documentation, only warnings.
2418
2419=back
2420
2421=head2 Output format modifiers
2422
2423=head3 reStructuredText only
2424
2425=over 8
2426
2427=item -sphinx-version VERSION
2428
2429Use the ReST C domain dialect compatible with a specific Sphinx Version.
2430
2431If not specified, kernel-doc will auto-detect using the sphinx-build version
2432found on PATH.
2433
2434=back
2435
2436=head2 Output selection (mutually exclusive):
2437
2438=over 8
2439
2440=item -export
2441
2442Only output documentation for the symbols that have been exported using
2443EXPORT_SYMBOL() and related macros in any input FILE or -export-file FILE.
2444
2445=item -internal
2446
2447Only output documentation for the symbols that have NOT been exported using
2448EXPORT_SYMBOL() and related macros in any input FILE or -export-file FILE.
2449
2450=item -function NAME
2451
2452Only output documentation for the given function or DOC: section title.
2453All other functions and DOC: sections are ignored.
2454
2455May be specified multiple times.
2456
2457=item -nosymbol NAME
2458
2459Exclude the specified symbol from the output documentation.
2460
2461May be specified multiple times.
2462
2463=back
2464
2465=head2 Output selection modifiers:
2466
2467=over 8
2468
2469=item -no-doc-sections
2470
2471Do not output DOC: sections.
2472
2473=item -export-file FILE
2474
2475Specify an additional FILE in which to look for EXPORT_SYMBOL information.
2476
2477To be used with -export or -internal.
2478
2479May be specified multiple times.
2480
2481=back
2482
2483=head3 reStructuredText only
2484
2485=over 8
2486
2487=item -enable-lineno
2488
2489Enable output of .. LINENO lines.
2490
2491=back
2492
2493=head2 Other parameters:
2494
2495=over 8
2496
2497=item -h, -help
2498
2499Print this help.
2500
2501=item -v
2502
2503Verbose output, more warnings and other information.
2504
2505=item -Werror
2506
2507Treat warnings as errors.
2508
2509=back
2510
2511=cut
1#!/usr/bin/perl -w
2
3use strict;
4
5## Copyright (c) 1998 Michael Zucchi, All Rights Reserved ##
6## Copyright (C) 2000, 1 Tim Waugh <twaugh@redhat.com> ##
7## Copyright (C) 2001 Simon Huggins ##
8## Copyright (C) 2005-2012 Randy Dunlap ##
9## Copyright (C) 2012 Dan Luedtke ##
10## ##
11## #define enhancements by Armin Kuster <akuster@mvista.com> ##
12## Copyright (c) 2000 MontaVista Software, Inc. ##
13## ##
14## This software falls under the GNU General Public License. ##
15## Please read the COPYING file for more information ##
16
17# 18/01/2001 - Cleanups
18# Functions prototyped as foo(void) same as foo()
19# Stop eval'ing where we don't need to.
20# -- huggie@earth.li
21
22# 27/06/2001 - Allowed whitespace after initial "/**" and
23# allowed comments before function declarations.
24# -- Christian Kreibich <ck@whoop.org>
25
26# Still to do:
27# - add perldoc documentation
28# - Look more closely at some of the scarier bits :)
29
30# 26/05/2001 - Support for separate source and object trees.
31# Return error code.
32# Keith Owens <kaos@ocs.com.au>
33
34# 23/09/2001 - Added support for typedefs, structs, enums and unions
35# Support for Context section; can be terminated using empty line
36# Small fixes (like spaces vs. \s in regex)
37# -- Tim Jansen <tim@tjansen.de>
38
39# 25/07/2012 - Added support for HTML5
40# -- Dan Luedtke <mail@danrl.de>
41
42sub usage {
43 my $message = <<"EOF";
44Usage: $0 [OPTION ...] FILE ...
45
46Read C language source or header FILEs, extract embedded documentation comments,
47and print formatted documentation to standard output.
48
49The documentation comments are identified by "/**" opening comment mark. See
50Documentation/kernel-doc-nano-HOWTO.txt for the documentation comment syntax.
51
52Output format selection (mutually exclusive):
53 -docbook Output DocBook format.
54 -html Output HTML format.
55 -html5 Output HTML5 format.
56 -list Output symbol list format. This is for use by docproc.
57 -man Output troff manual page format. This is the default.
58 -rst Output reStructuredText format.
59 -text Output plain text format.
60
61Output selection (mutually exclusive):
62 -export Only output documentation for symbols that have been
63 exported using EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL()
64 in any input FILE or -export-file FILE.
65 -internal Only output documentation for symbols that have NOT been
66 exported using EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL()
67 in any input FILE or -export-file FILE.
68 -function NAME Only output documentation for the given function(s)
69 or DOC: section title(s). All other functions and DOC:
70 sections are ignored. May be specified multiple times.
71 -nofunction NAME Do NOT output documentation for the given function(s);
72 only output documentation for the other functions and
73 DOC: sections. May be specified multiple times.
74
75Output selection modifiers:
76 -no-doc-sections Do not output DOC: sections.
77 -enable-lineno Enable output of #define LINENO lines. Only works with
78 reStructuredText format.
79 -export-file FILE Specify an additional FILE in which to look for
80 EXPORT_SYMBOL() and EXPORT_SYMBOL_GPL(). To be used with
81 -export or -internal. May be specified multiple times.
82
83Other parameters:
84 -v Verbose output, more warnings and other information.
85 -h Print this help.
86
87EOF
88 print $message;
89 exit 1;
90}
91
92#
93# format of comments.
94# In the following table, (...)? signifies optional structure.
95# (...)* signifies 0 or more structure elements
96# /**
97# * function_name(:)? (- short description)?
98# (* @parameterx: (description of parameter x)?)*
99# (* a blank line)?
100# * (Description:)? (Description of function)?
101# * (section header: (section description)? )*
102# (*)?*/
103#
104# So .. the trivial example would be:
105#
106# /**
107# * my_function
108# */
109#
110# If the Description: header tag is omitted, then there must be a blank line
111# after the last parameter specification.
112# e.g.
113# /**
114# * my_function - does my stuff
115# * @my_arg: its mine damnit
116# *
117# * Does my stuff explained.
118# */
119#
120# or, could also use:
121# /**
122# * my_function - does my stuff
123# * @my_arg: its mine damnit
124# * Description: Does my stuff explained.
125# */
126# etc.
127#
128# Besides functions you can also write documentation for structs, unions,
129# enums and typedefs. Instead of the function name you must write the name
130# of the declaration; the struct/union/enum/typedef must always precede
131# the name. Nesting of declarations is not supported.
132# Use the argument mechanism to document members or constants.
133# e.g.
134# /**
135# * struct my_struct - short description
136# * @a: first member
137# * @b: second member
138# *
139# * Longer description
140# */
141# struct my_struct {
142# int a;
143# int b;
144# /* private: */
145# int c;
146# };
147#
148# All descriptions can be multiline, except the short function description.
149#
150# For really longs structs, you can also describe arguments inside the
151# body of the struct.
152# eg.
153# /**
154# * struct my_struct - short description
155# * @a: first member
156# * @b: second member
157# *
158# * Longer description
159# */
160# struct my_struct {
161# int a;
162# int b;
163# /**
164# * @c: This is longer description of C
165# *
166# * You can use paragraphs to describe arguments
167# * using this method.
168# */
169# int c;
170# };
171#
172# This should be use only for struct/enum members.
173#
174# You can also add additional sections. When documenting kernel functions you
175# should document the "Context:" of the function, e.g. whether the functions
176# can be called form interrupts. Unlike other sections you can end it with an
177# empty line.
178# A non-void function should have a "Return:" section describing the return
179# value(s).
180# Example-sections should contain the string EXAMPLE so that they are marked
181# appropriately in DocBook.
182#
183# Example:
184# /**
185# * user_function - function that can only be called in user context
186# * @a: some argument
187# * Context: !in_interrupt()
188# *
189# * Some description
190# * Example:
191# * user_function(22);
192# */
193# ...
194#
195#
196# All descriptive text is further processed, scanning for the following special
197# patterns, which are highlighted appropriately.
198#
199# 'funcname()' - function
200# '$ENVVAR' - environmental variable
201# '&struct_name' - name of a structure (up to two words including 'struct')
202# '@parameter' - name of a parameter
203# '%CONST' - name of a constant.
204
205## init lots of data
206
207
208my $errors = 0;
209my $warnings = 0;
210my $anon_struct_union = 0;
211
212# match expressions used to find embedded type information
213my $type_constant = '\%([-_\w]+)';
214my $type_func = '(\w+)\(\)';
215my $type_param = '\@(\w+(\.\.\.)?)';
216my $type_fp_param = '\@(\w+)\(\)'; # Special RST handling for func ptr params
217my $type_struct = '\&((struct\s*)*[_\w]+)';
218my $type_struct_xml = '\\&((struct\s*)*[_\w]+)';
219my $type_env = '(\$\w+)';
220my $type_enum_full = '\&(enum)\s*([_\w]+)';
221my $type_struct_full = '\&(struct)\s*([_\w]+)';
222my $type_typedef_full = '\&(typedef)\s*([_\w]+)';
223my $type_union_full = '\&(union)\s*([_\w]+)';
224my $type_member = '\&([_\w]+)((\.|->)[_\w]+)';
225my $type_member_func = $type_member . '\(\)';
226
227# Output conversion substitutions.
228# One for each output format
229
230# these work fairly well
231my @highlights_html = (
232 [$type_constant, "<i>\$1</i>"],
233 [$type_func, "<b>\$1</b>"],
234 [$type_struct_xml, "<i>\$1</i>"],
235 [$type_env, "<b><i>\$1</i></b>"],
236 [$type_param, "<tt><b>\$1</b></tt>"]
237 );
238my $local_lt = "\\\\\\\\lt:";
239my $local_gt = "\\\\\\\\gt:";
240my $blankline_html = $local_lt . "p" . $local_gt; # was "<p>"
241
242# html version 5
243my @highlights_html5 = (
244 [$type_constant, "<span class=\"const\">\$1</span>"],
245 [$type_func, "<span class=\"func\">\$1</span>"],
246 [$type_struct_xml, "<span class=\"struct\">\$1</span>"],
247 [$type_env, "<span class=\"env\">\$1</span>"],
248 [$type_param, "<span class=\"param\">\$1</span>]"]
249 );
250my $blankline_html5 = $local_lt . "br /" . $local_gt;
251
252# XML, docbook format
253my @highlights_xml = (
254 ["([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>"],
255 [$type_constant, "<constant>\$1</constant>"],
256 [$type_struct_xml, "<structname>\$1</structname>"],
257 [$type_param, "<parameter>\$1</parameter>"],
258 [$type_func, "<function>\$1</function>"],
259 [$type_env, "<envar>\$1</envar>"]
260 );
261my $blankline_xml = $local_lt . "/para" . $local_gt . $local_lt . "para" . $local_gt . "\n";
262
263# gnome, docbook format
264my @highlights_gnome = (
265 [$type_constant, "<replaceable class=\"option\">\$1</replaceable>"],
266 [$type_func, "<function>\$1</function>"],
267 [$type_struct, "<structname>\$1</structname>"],
268 [$type_env, "<envar>\$1</envar>"],
269 [$type_param, "<parameter>\$1</parameter>" ]
270 );
271my $blankline_gnome = "</para><para>\n";
272
273# these are pretty rough
274my @highlights_man = (
275 [$type_constant, "\$1"],
276 [$type_func, "\\\\fB\$1\\\\fP"],
277 [$type_struct, "\\\\fI\$1\\\\fP"],
278 [$type_param, "\\\\fI\$1\\\\fP"]
279 );
280my $blankline_man = "";
281
282# text-mode
283my @highlights_text = (
284 [$type_constant, "\$1"],
285 [$type_func, "\$1"],
286 [$type_struct, "\$1"],
287 [$type_param, "\$1"]
288 );
289my $blankline_text = "";
290
291# rst-mode
292my @highlights_rst = (
293 [$type_constant, "``\$1``"],
294 # Note: need to escape () to avoid func matching later
295 [$type_member_func, "\\:c\\:type\\:`\$1\$2\\\\(\\\\) <\$1>`"],
296 [$type_member, "\\:c\\:type\\:`\$1\$2 <\$1>`"],
297 [$type_fp_param, "**\$1\\\\(\\\\)**"],
298 [$type_func, "\\:c\\:func\\:`\$1()`"],
299 [$type_struct_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
300 [$type_enum_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
301 [$type_typedef_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
302 [$type_union_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
303 # in rst this can refer to any type
304 [$type_struct, "\\:c\\:type\\:`\$1`"],
305 [$type_param, "**\$1**"]
306 );
307my $blankline_rst = "\n";
308
309# list mode
310my @highlights_list = (
311 [$type_constant, "\$1"],
312 [$type_func, "\$1"],
313 [$type_struct, "\$1"],
314 [$type_param, "\$1"]
315 );
316my $blankline_list = "";
317
318# read arguments
319if ($#ARGV == -1) {
320 usage();
321}
322
323my $kernelversion;
324my $dohighlight = "";
325
326my $verbose = 0;
327my $output_mode = "man";
328my $output_preformatted = 0;
329my $no_doc_sections = 0;
330my $enable_lineno = 0;
331my @highlights = @highlights_man;
332my $blankline = $blankline_man;
333my $modulename = "Kernel API";
334
335use constant {
336 OUTPUT_ALL => 0, # output all symbols and doc sections
337 OUTPUT_INCLUDE => 1, # output only specified symbols
338 OUTPUT_EXCLUDE => 2, # output everything except specified symbols
339 OUTPUT_EXPORTED => 3, # output exported symbols
340 OUTPUT_INTERNAL => 4, # output non-exported symbols
341};
342my $output_selection = OUTPUT_ALL;
343my $show_not_found = 0;
344
345my @export_file_list;
346
347my @build_time;
348if (defined($ENV{'KBUILD_BUILD_TIMESTAMP'}) &&
349 (my $seconds = `date -d"${ENV{'KBUILD_BUILD_TIMESTAMP'}}" +%s`) ne '') {
350 @build_time = gmtime($seconds);
351} else {
352 @build_time = localtime;
353}
354
355my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
356 'July', 'August', 'September', 'October',
357 'November', 'December')[$build_time[4]] .
358 " " . ($build_time[5]+1900);
359
360# Essentially these are globals.
361# They probably want to be tidied up, made more localised or something.
362# CAVEAT EMPTOR! Some of the others I localised may not want to be, which
363# could cause "use of undefined value" or other bugs.
364my ($function, %function_table, %parametertypes, $declaration_purpose);
365my $declaration_start_line;
366my ($type, $declaration_name, $return_type);
367my ($newsection, $newcontents, $prototype, $brcount, %source_map);
368
369if (defined($ENV{'KBUILD_VERBOSE'})) {
370 $verbose = "$ENV{'KBUILD_VERBOSE'}";
371}
372
373# Generated docbook code is inserted in a template at a point where
374# docbook v3.1 requires a non-zero sequence of RefEntry's; see:
375# http://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
376# We keep track of number of generated entries and generate a dummy
377# if needs be to ensure the expanded template can be postprocessed
378# into html.
379my $section_counter = 0;
380
381my $lineprefix="";
382
383# Parser states
384use constant {
385 STATE_NORMAL => 0, # normal code
386 STATE_NAME => 1, # looking for function name
387 STATE_FIELD => 2, # scanning field start
388 STATE_PROTO => 3, # scanning prototype
389 STATE_DOCBLOCK => 4, # documentation block
390 STATE_INLINE => 5, # gathering documentation outside main block
391};
392my $state;
393my $in_doc_sect;
394
395# Inline documentation state
396use constant {
397 STATE_INLINE_NA => 0, # not applicable ($state != STATE_INLINE)
398 STATE_INLINE_NAME => 1, # looking for member name (@foo:)
399 STATE_INLINE_TEXT => 2, # looking for member documentation
400 STATE_INLINE_END => 3, # done
401 STATE_INLINE_ERROR => 4, # error - Comment without header was found.
402 # Spit a warning as it's not
403 # proper kernel-doc and ignore the rest.
404};
405my $inline_doc_state;
406
407#declaration types: can be
408# 'function', 'struct', 'union', 'enum', 'typedef'
409my $decl_type;
410
411my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
412my $doc_end = '\*/';
413my $doc_com = '\s*\*\s*';
414my $doc_com_body = '\s*\* ?';
415my $doc_decl = $doc_com . '(\w+)';
416# @params and a strictly limited set of supported section names
417my $doc_sect = $doc_com .
418 '\s*(\@[.\w]+|\@\.\.\.|description|context|returns?|notes?|examples?)\s*:(.*)';
419my $doc_content = $doc_com_body . '(.*)';
420my $doc_block = $doc_com . 'DOC:\s*(.*)?';
421my $doc_inline_start = '^\s*/\*\*\s*$';
422my $doc_inline_sect = '\s*\*\s*(@[\w\s]+):(.*)';
423my $doc_inline_end = '^\s*\*/\s*$';
424my $doc_inline_oneline = '^\s*/\*\*\s*(@[\w\s]+):\s*(.*)\s*\*/\s*$';
425my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
426
427my %parameterdescs;
428my %parameterdesc_start_lines;
429my @parameterlist;
430my %sections;
431my @sectionlist;
432my %section_start_lines;
433my $sectcheck;
434my $struct_actual;
435
436my $contents = "";
437my $new_start_line = 0;
438
439# the canonical section names. see also $doc_sect above.
440my $section_default = "Description"; # default section
441my $section_intro = "Introduction";
442my $section = $section_default;
443my $section_context = "Context";
444my $section_return = "Return";
445
446my $undescribed = "-- undescribed --";
447
448reset_state();
449
450while ($ARGV[0] =~ m/^-(.*)/) {
451 my $cmd = shift @ARGV;
452 if ($cmd eq "-html") {
453 $output_mode = "html";
454 @highlights = @highlights_html;
455 $blankline = $blankline_html;
456 } elsif ($cmd eq "-html5") {
457 $output_mode = "html5";
458 @highlights = @highlights_html5;
459 $blankline = $blankline_html5;
460 } elsif ($cmd eq "-man") {
461 $output_mode = "man";
462 @highlights = @highlights_man;
463 $blankline = $blankline_man;
464 } elsif ($cmd eq "-text") {
465 $output_mode = "text";
466 @highlights = @highlights_text;
467 $blankline = $blankline_text;
468 } elsif ($cmd eq "-rst") {
469 $output_mode = "rst";
470 @highlights = @highlights_rst;
471 $blankline = $blankline_rst;
472 } elsif ($cmd eq "-docbook") {
473 $output_mode = "xml";
474 @highlights = @highlights_xml;
475 $blankline = $blankline_xml;
476 } elsif ($cmd eq "-list") {
477 $output_mode = "list";
478 @highlights = @highlights_list;
479 $blankline = $blankline_list;
480 } elsif ($cmd eq "-gnome") {
481 $output_mode = "gnome";
482 @highlights = @highlights_gnome;
483 $blankline = $blankline_gnome;
484 } elsif ($cmd eq "-module") { # not needed for XML, inherits from calling document
485 $modulename = shift @ARGV;
486 } elsif ($cmd eq "-function") { # to only output specific functions
487 $output_selection = OUTPUT_INCLUDE;
488 $function = shift @ARGV;
489 $function_table{$function} = 1;
490 } elsif ($cmd eq "-nofunction") { # output all except specific functions
491 $output_selection = OUTPUT_EXCLUDE;
492 $function = shift @ARGV;
493 $function_table{$function} = 1;
494 } elsif ($cmd eq "-export") { # only exported symbols
495 $output_selection = OUTPUT_EXPORTED;
496 %function_table = ();
497 } elsif ($cmd eq "-internal") { # only non-exported symbols
498 $output_selection = OUTPUT_INTERNAL;
499 %function_table = ();
500 } elsif ($cmd eq "-export-file") {
501 my $file = shift @ARGV;
502 push(@export_file_list, $file);
503 } elsif ($cmd eq "-v") {
504 $verbose = 1;
505 } elsif (($cmd eq "-h") || ($cmd eq "--help")) {
506 usage();
507 } elsif ($cmd eq '-no-doc-sections') {
508 $no_doc_sections = 1;
509 } elsif ($cmd eq '-enable-lineno') {
510 $enable_lineno = 1;
511 } elsif ($cmd eq '-show-not-found') {
512 $show_not_found = 1;
513 }
514}
515
516# continue execution near EOF;
517
518# get kernel version from env
519sub get_kernel_version() {
520 my $version = 'unknown kernel version';
521
522 if (defined($ENV{'KERNELVERSION'})) {
523 $version = $ENV{'KERNELVERSION'};
524 }
525 return $version;
526}
527
528#
529sub print_lineno {
530 my $lineno = shift;
531 if ($enable_lineno && defined($lineno)) {
532 print "#define LINENO " . $lineno . "\n";
533 }
534}
535##
536# dumps section contents to arrays/hashes intended for that purpose.
537#
538sub dump_section {
539 my $file = shift;
540 my $name = shift;
541 my $contents = join "\n", @_;
542
543 if ($name =~ m/$type_param/) {
544 $name = $1;
545 $parameterdescs{$name} = $contents;
546 $sectcheck = $sectcheck . $name . " ";
547 $parameterdesc_start_lines{$name} = $new_start_line;
548 $new_start_line = 0;
549 } elsif ($name eq "@\.\.\.") {
550 $name = "...";
551 $parameterdescs{$name} = $contents;
552 $sectcheck = $sectcheck . $name . " ";
553 $parameterdesc_start_lines{$name} = $new_start_line;
554 $new_start_line = 0;
555 } else {
556 if (defined($sections{$name}) && ($sections{$name} ne "")) {
557 # Only warn on user specified duplicate section names.
558 if ($name ne $section_default) {
559 print STDERR "${file}:$.: warning: duplicate section name '$name'\n";
560 ++$warnings;
561 }
562 $sections{$name} .= $contents;
563 } else {
564 $sections{$name} = $contents;
565 push @sectionlist, $name;
566 $section_start_lines{$name} = $new_start_line;
567 $new_start_line = 0;
568 }
569 }
570}
571
572##
573# dump DOC: section after checking that it should go out
574#
575sub dump_doc_section {
576 my $file = shift;
577 my $name = shift;
578 my $contents = join "\n", @_;
579
580 if ($no_doc_sections) {
581 return;
582 }
583
584 if (($output_selection == OUTPUT_ALL) ||
585 ($output_selection == OUTPUT_INCLUDE &&
586 defined($function_table{$name})) ||
587 ($output_selection == OUTPUT_EXCLUDE &&
588 !defined($function_table{$name})))
589 {
590 dump_section($file, $name, $contents);
591 output_blockhead({'sectionlist' => \@sectionlist,
592 'sections' => \%sections,
593 'module' => $modulename,
594 'content-only' => ($output_selection != OUTPUT_ALL), });
595 }
596}
597
598##
599# output function
600#
601# parameterdescs, a hash.
602# function => "function name"
603# parameterlist => @list of parameters
604# parameterdescs => %parameter descriptions
605# sectionlist => @list of sections
606# sections => %section descriptions
607#
608
609sub output_highlight {
610 my $contents = join "\n",@_;
611 my $line;
612
613# DEBUG
614# if (!defined $contents) {
615# use Carp;
616# confess "output_highlight got called with no args?\n";
617# }
618
619 if ($output_mode eq "html" || $output_mode eq "html5" ||
620 $output_mode eq "xml") {
621 $contents = local_unescape($contents);
622 # convert data read & converted thru xml_escape() into &xyz; format:
623 $contents =~ s/\\\\\\/\&/g;
624 }
625# print STDERR "contents b4:$contents\n";
626 eval $dohighlight;
627 die $@ if $@;
628# print STDERR "contents af:$contents\n";
629
630# strip whitespaces when generating html5
631 if ($output_mode eq "html5") {
632 $contents =~ s/^\s+//;
633 $contents =~ s/\s+$//;
634 }
635 foreach $line (split "\n", $contents) {
636 if (! $output_preformatted) {
637 $line =~ s/^\s*//;
638 }
639 if ($line eq ""){
640 if (! $output_preformatted) {
641 print $lineprefix, local_unescape($blankline);
642 }
643 } else {
644 $line =~ s/\\\\\\/\&/g;
645 if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
646 print "\\&$line";
647 } else {
648 print $lineprefix, $line;
649 }
650 }
651 print "\n";
652 }
653}
654
655# output sections in html
656sub output_section_html(%) {
657 my %args = %{$_[0]};
658 my $section;
659
660 foreach $section (@{$args{'sectionlist'}}) {
661 print "<h3>$section</h3>\n";
662 print "<blockquote>\n";
663 output_highlight($args{'sections'}{$section});
664 print "</blockquote>\n";
665 }
666}
667
668# output enum in html
669sub output_enum_html(%) {
670 my %args = %{$_[0]};
671 my ($parameter);
672 my $count;
673 print "<h2>enum " . $args{'enum'} . "</h2>\n";
674
675 print "<b>enum " . $args{'enum'} . "</b> {<br>\n";
676 $count = 0;
677 foreach $parameter (@{$args{'parameterlist'}}) {
678 print " <b>" . $parameter . "</b>";
679 if ($count != $#{$args{'parameterlist'}}) {
680 $count++;
681 print ",\n";
682 }
683 print "<br>";
684 }
685 print "};<br>\n";
686
687 print "<h3>Constants</h3>\n";
688 print "<dl>\n";
689 foreach $parameter (@{$args{'parameterlist'}}) {
690 print "<dt><b>" . $parameter . "</b>\n";
691 print "<dd>";
692 output_highlight($args{'parameterdescs'}{$parameter});
693 }
694 print "</dl>\n";
695 output_section_html(@_);
696 print "<hr>\n";
697}
698
699# output typedef in html
700sub output_typedef_html(%) {
701 my %args = %{$_[0]};
702 my ($parameter);
703 my $count;
704 print "<h2>typedef " . $args{'typedef'} . "</h2>\n";
705
706 print "<b>typedef " . $args{'typedef'} . "</b>\n";
707 output_section_html(@_);
708 print "<hr>\n";
709}
710
711# output struct in html
712sub output_struct_html(%) {
713 my %args = %{$_[0]};
714 my ($parameter);
715
716 print "<h2>" . $args{'type'} . " " . $args{'struct'} . " - " . $args{'purpose'} . "</h2>\n";
717 print "<b>" . $args{'type'} . " " . $args{'struct'} . "</b> {<br>\n";
718 foreach $parameter (@{$args{'parameterlist'}}) {
719 if ($parameter =~ /^#/) {
720 print "$parameter<br>\n";
721 next;
722 }
723 my $parameter_name = $parameter;
724 $parameter_name =~ s/\[.*//;
725
726 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
727 $type = $args{'parametertypes'}{$parameter};
728 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
729 # pointer-to-function
730 print " <i>$1</i><b>$parameter</b>) <i>($2)</i>;<br>\n";
731 } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
732 # bitfield
733 print " <i>$1</i> <b>$parameter</b>$2;<br>\n";
734 } else {
735 print " <i>$type</i> <b>$parameter</b>;<br>\n";
736 }
737 }
738 print "};<br>\n";
739
740 print "<h3>Members</h3>\n";
741 print "<dl>\n";
742 foreach $parameter (@{$args{'parameterlist'}}) {
743 ($parameter =~ /^#/) && next;
744
745 my $parameter_name = $parameter;
746 $parameter_name =~ s/\[.*//;
747
748 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
749 print "<dt><b>" . $parameter . "</b>\n";
750 print "<dd>";
751 output_highlight($args{'parameterdescs'}{$parameter_name});
752 }
753 print "</dl>\n";
754 output_section_html(@_);
755 print "<hr>\n";
756}
757
758# output function in html
759sub output_function_html(%) {
760 my %args = %{$_[0]};
761 my ($parameter, $section);
762 my $count;
763
764 print "<h2>" . $args{'function'} . " - " . $args{'purpose'} . "</h2>\n";
765 print "<i>" . $args{'functiontype'} . "</i>\n";
766 print "<b>" . $args{'function'} . "</b>\n";
767 print "(";
768 $count = 0;
769 foreach $parameter (@{$args{'parameterlist'}}) {
770 $type = $args{'parametertypes'}{$parameter};
771 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
772 # pointer-to-function
773 print "<i>$1</i><b>$parameter</b>) <i>($2)</i>";
774 } else {
775 print "<i>" . $type . "</i> <b>" . $parameter . "</b>";
776 }
777 if ($count != $#{$args{'parameterlist'}}) {
778 $count++;
779 print ",\n";
780 }
781 }
782 print ")\n";
783
784 print "<h3>Arguments</h3>\n";
785 print "<dl>\n";
786 foreach $parameter (@{$args{'parameterlist'}}) {
787 my $parameter_name = $parameter;
788 $parameter_name =~ s/\[.*//;
789
790 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
791 print "<dt><b>" . $parameter . "</b>\n";
792 print "<dd>";
793 output_highlight($args{'parameterdescs'}{$parameter_name});
794 }
795 print "</dl>\n";
796 output_section_html(@_);
797 print "<hr>\n";
798}
799
800# output DOC: block header in html
801sub output_blockhead_html(%) {
802 my %args = %{$_[0]};
803 my ($parameter, $section);
804 my $count;
805
806 foreach $section (@{$args{'sectionlist'}}) {
807 print "<h3>$section</h3>\n";
808 print "<ul>\n";
809 output_highlight($args{'sections'}{$section});
810 print "</ul>\n";
811 }
812 print "<hr>\n";
813}
814
815# output sections in html5
816sub output_section_html5(%) {
817 my %args = %{$_[0]};
818 my $section;
819
820 foreach $section (@{$args{'sectionlist'}}) {
821 print "<section>\n";
822 print "<h1>$section</h1>\n";
823 print "<p>\n";
824 output_highlight($args{'sections'}{$section});
825 print "</p>\n";
826 print "</section>\n";
827 }
828}
829
830# output enum in html5
831sub output_enum_html5(%) {
832 my %args = %{$_[0]};
833 my ($parameter);
834 my $count;
835 my $html5id;
836
837 $html5id = $args{'enum'};
838 $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
839 print "<article class=\"enum\" id=\"enum:". $html5id . "\">";
840 print "<h1>enum " . $args{'enum'} . "</h1>\n";
841 print "<ol class=\"code\">\n";
842 print "<li>";
843 print "<span class=\"keyword\">enum</span> ";
844 print "<span class=\"identifier\">" . $args{'enum'} . "</span> {";
845 print "</li>\n";
846 $count = 0;
847 foreach $parameter (@{$args{'parameterlist'}}) {
848 print "<li class=\"indent\">";
849 print "<span class=\"param\">" . $parameter . "</span>";
850 if ($count != $#{$args{'parameterlist'}}) {
851 $count++;
852 print ",";
853 }
854 print "</li>\n";
855 }
856 print "<li>};</li>\n";
857 print "</ol>\n";
858
859 print "<section>\n";
860 print "<h1>Constants</h1>\n";
861 print "<dl>\n";
862 foreach $parameter (@{$args{'parameterlist'}}) {
863 print "<dt>" . $parameter . "</dt>\n";
864 print "<dd>";
865 output_highlight($args{'parameterdescs'}{$parameter});
866 print "</dd>\n";
867 }
868 print "</dl>\n";
869 print "</section>\n";
870 output_section_html5(@_);
871 print "</article>\n";
872}
873
874# output typedef in html5
875sub output_typedef_html5(%) {
876 my %args = %{$_[0]};
877 my ($parameter);
878 my $count;
879 my $html5id;
880
881 $html5id = $args{'typedef'};
882 $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
883 print "<article class=\"typedef\" id=\"typedef:" . $html5id . "\">\n";
884 print "<h1>typedef " . $args{'typedef'} . "</h1>\n";
885
886 print "<ol class=\"code\">\n";
887 print "<li>";
888 print "<span class=\"keyword\">typedef</span> ";
889 print "<span class=\"identifier\">" . $args{'typedef'} . "</span>";
890 print "</li>\n";
891 print "</ol>\n";
892 output_section_html5(@_);
893 print "</article>\n";
894}
895
896# output struct in html5
897sub output_struct_html5(%) {
898 my %args = %{$_[0]};
899 my ($parameter);
900 my $html5id;
901
902 $html5id = $args{'struct'};
903 $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
904 print "<article class=\"struct\" id=\"struct:" . $html5id . "\">\n";
905 print "<hgroup>\n";
906 print "<h1>" . $args{'type'} . " " . $args{'struct'} . "</h1>";
907 print "<h2>". $args{'purpose'} . "</h2>\n";
908 print "</hgroup>\n";
909 print "<ol class=\"code\">\n";
910 print "<li>";
911 print "<span class=\"type\">" . $args{'type'} . "</span> ";
912 print "<span class=\"identifier\">" . $args{'struct'} . "</span> {";
913 print "</li>\n";
914 foreach $parameter (@{$args{'parameterlist'}}) {
915 print "<li class=\"indent\">";
916 if ($parameter =~ /^#/) {
917 print "<span class=\"param\">" . $parameter ."</span>\n";
918 print "</li>\n";
919 next;
920 }
921 my $parameter_name = $parameter;
922 $parameter_name =~ s/\[.*//;
923
924 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
925 $type = $args{'parametertypes'}{$parameter};
926 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
927 # pointer-to-function
928 print "<span class=\"type\">$1</span> ";
929 print "<span class=\"param\">$parameter</span>";
930 print "<span class=\"type\">)</span> ";
931 print "(<span class=\"args\">$2</span>);";
932 } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
933 # bitfield
934 print "<span class=\"type\">$1</span> ";
935 print "<span class=\"param\">$parameter</span>";
936 print "<span class=\"bits\">$2</span>;";
937 } else {
938 print "<span class=\"type\">$type</span> ";
939 print "<span class=\"param\">$parameter</span>;";
940 }
941 print "</li>\n";
942 }
943 print "<li>};</li>\n";
944 print "</ol>\n";
945
946 print "<section>\n";
947 print "<h1>Members</h1>\n";
948 print "<dl>\n";
949 foreach $parameter (@{$args{'parameterlist'}}) {
950 ($parameter =~ /^#/) && next;
951
952 my $parameter_name = $parameter;
953 $parameter_name =~ s/\[.*//;
954
955 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
956 print "<dt>" . $parameter . "</dt>\n";
957 print "<dd>";
958 output_highlight($args{'parameterdescs'}{$parameter_name});
959 print "</dd>\n";
960 }
961 print "</dl>\n";
962 print "</section>\n";
963 output_section_html5(@_);
964 print "</article>\n";
965}
966
967# output function in html5
968sub output_function_html5(%) {
969 my %args = %{$_[0]};
970 my ($parameter, $section);
971 my $count;
972 my $html5id;
973
974 $html5id = $args{'function'};
975 $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
976 print "<article class=\"function\" id=\"func:". $html5id . "\">\n";
977 print "<hgroup>\n";
978 print "<h1>" . $args{'function'} . "</h1>";
979 print "<h2>" . $args{'purpose'} . "</h2>\n";
980 print "</hgroup>\n";
981 print "<ol class=\"code\">\n";
982 print "<li>";
983 print "<span class=\"type\">" . $args{'functiontype'} . "</span> ";
984 print "<span class=\"identifier\">" . $args{'function'} . "</span> (";
985 print "</li>";
986 $count = 0;
987 foreach $parameter (@{$args{'parameterlist'}}) {
988 print "<li class=\"indent\">";
989 $type = $args{'parametertypes'}{$parameter};
990 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
991 # pointer-to-function
992 print "<span class=\"type\">$1</span> ";
993 print "<span class=\"param\">$parameter</span>";
994 print "<span class=\"type\">)</span> ";
995 print "(<span class=\"args\">$2</span>)";
996 } else {
997 print "<span class=\"type\">$type</span> ";
998 print "<span class=\"param\">$parameter</span>";
999 }
1000 if ($count != $#{$args{'parameterlist'}}) {
1001 $count++;
1002 print ",";
1003 }
1004 print "</li>\n";
1005 }
1006 print "<li>)</li>\n";
1007 print "</ol>\n";
1008
1009 print "<section>\n";
1010 print "<h1>Arguments</h1>\n";
1011 print "<p>\n";
1012 print "<dl>\n";
1013 foreach $parameter (@{$args{'parameterlist'}}) {
1014 my $parameter_name = $parameter;
1015 $parameter_name =~ s/\[.*//;
1016
1017 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1018 print "<dt>" . $parameter . "</dt>\n";
1019 print "<dd>";
1020 output_highlight($args{'parameterdescs'}{$parameter_name});
1021 print "</dd>\n";
1022 }
1023 print "</dl>\n";
1024 print "</section>\n";
1025 output_section_html5(@_);
1026 print "</article>\n";
1027}
1028
1029# output DOC: block header in html5
1030sub output_blockhead_html5(%) {
1031 my %args = %{$_[0]};
1032 my ($parameter, $section);
1033 my $count;
1034 my $html5id;
1035
1036 foreach $section (@{$args{'sectionlist'}}) {
1037 $html5id = $section;
1038 $html5id =~ s/[^a-zA-Z0-9\-]+/_/g;
1039 print "<article class=\"doc\" id=\"doc:". $html5id . "\">\n";
1040 print "<h1>$section</h1>\n";
1041 print "<p>\n";
1042 output_highlight($args{'sections'}{$section});
1043 print "</p>\n";
1044 }
1045 print "</article>\n";
1046}
1047
1048sub output_section_xml(%) {
1049 my %args = %{$_[0]};
1050 my $section;
1051 # print out each section
1052 $lineprefix=" ";
1053 foreach $section (@{$args{'sectionlist'}}) {
1054 print "<refsect1>\n";
1055 print "<title>$section</title>\n";
1056 if ($section =~ m/EXAMPLE/i) {
1057 print "<informalexample><programlisting>\n";
1058 $output_preformatted = 1;
1059 } else {
1060 print "<para>\n";
1061 }
1062 output_highlight($args{'sections'}{$section});
1063 $output_preformatted = 0;
1064 if ($section =~ m/EXAMPLE/i) {
1065 print "</programlisting></informalexample>\n";
1066 } else {
1067 print "</para>\n";
1068 }
1069 print "</refsect1>\n";
1070 }
1071}
1072
1073# output function in XML DocBook
1074sub output_function_xml(%) {
1075 my %args = %{$_[0]};
1076 my ($parameter, $section);
1077 my $count;
1078 my $id;
1079
1080 $id = "API-" . $args{'function'};
1081 $id =~ s/[^A-Za-z0-9]/-/g;
1082
1083 print "<refentry id=\"$id\">\n";
1084 print "<refentryinfo>\n";
1085 print " <title>LINUX</title>\n";
1086 print " <productname>Kernel Hackers Manual</productname>\n";
1087 print " <date>$man_date</date>\n";
1088 print "</refentryinfo>\n";
1089 print "<refmeta>\n";
1090 print " <refentrytitle><phrase>" . $args{'function'} . "</phrase></refentrytitle>\n";
1091 print " <manvolnum>9</manvolnum>\n";
1092 print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
1093 print "</refmeta>\n";
1094 print "<refnamediv>\n";
1095 print " <refname>" . $args{'function'} . "</refname>\n";
1096 print " <refpurpose>\n";
1097 print " ";
1098 output_highlight ($args{'purpose'});
1099 print " </refpurpose>\n";
1100 print "</refnamediv>\n";
1101
1102 print "<refsynopsisdiv>\n";
1103 print " <title>Synopsis</title>\n";
1104 print " <funcsynopsis><funcprototype>\n";
1105 print " <funcdef>" . $args{'functiontype'} . " ";
1106 print "<function>" . $args{'function'} . " </function></funcdef>\n";
1107
1108 $count = 0;
1109 if ($#{$args{'parameterlist'}} >= 0) {
1110 foreach $parameter (@{$args{'parameterlist'}}) {
1111 $type = $args{'parametertypes'}{$parameter};
1112 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1113 # pointer-to-function
1114 print " <paramdef>$1<parameter>$parameter</parameter>)\n";
1115 print " <funcparams>$2</funcparams></paramdef>\n";
1116 } else {
1117 print " <paramdef>" . $type;
1118 print " <parameter>$parameter</parameter></paramdef>\n";
1119 }
1120 }
1121 } else {
1122 print " <void/>\n";
1123 }
1124 print " </funcprototype></funcsynopsis>\n";
1125 print "</refsynopsisdiv>\n";
1126
1127 # print parameters
1128 print "<refsect1>\n <title>Arguments</title>\n";
1129 if ($#{$args{'parameterlist'}} >= 0) {
1130 print " <variablelist>\n";
1131 foreach $parameter (@{$args{'parameterlist'}}) {
1132 my $parameter_name = $parameter;
1133 $parameter_name =~ s/\[.*//;
1134
1135 print " <varlistentry>\n <term><parameter>$parameter</parameter></term>\n";
1136 print " <listitem>\n <para>\n";
1137 $lineprefix=" ";
1138 output_highlight($args{'parameterdescs'}{$parameter_name});
1139 print " </para>\n </listitem>\n </varlistentry>\n";
1140 }
1141 print " </variablelist>\n";
1142 } else {
1143 print " <para>\n None\n </para>\n";
1144 }
1145 print "</refsect1>\n";
1146
1147 output_section_xml(@_);
1148 print "</refentry>\n\n";
1149}
1150
1151# output struct in XML DocBook
1152sub output_struct_xml(%) {
1153 my %args = %{$_[0]};
1154 my ($parameter, $section);
1155 my $id;
1156
1157 $id = "API-struct-" . $args{'struct'};
1158 $id =~ s/[^A-Za-z0-9]/-/g;
1159
1160 print "<refentry id=\"$id\">\n";
1161 print "<refentryinfo>\n";
1162 print " <title>LINUX</title>\n";
1163 print " <productname>Kernel Hackers Manual</productname>\n";
1164 print " <date>$man_date</date>\n";
1165 print "</refentryinfo>\n";
1166 print "<refmeta>\n";
1167 print " <refentrytitle><phrase>" . $args{'type'} . " " . $args{'struct'} . "</phrase></refentrytitle>\n";
1168 print " <manvolnum>9</manvolnum>\n";
1169 print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
1170 print "</refmeta>\n";
1171 print "<refnamediv>\n";
1172 print " <refname>" . $args{'type'} . " " . $args{'struct'} . "</refname>\n";
1173 print " <refpurpose>\n";
1174 print " ";
1175 output_highlight ($args{'purpose'});
1176 print " </refpurpose>\n";
1177 print "</refnamediv>\n";
1178
1179 print "<refsynopsisdiv>\n";
1180 print " <title>Synopsis</title>\n";
1181 print " <programlisting>\n";
1182 print $args{'type'} . " " . $args{'struct'} . " {\n";
1183 foreach $parameter (@{$args{'parameterlist'}}) {
1184 if ($parameter =~ /^#/) {
1185 my $prm = $parameter;
1186 # convert data read & converted thru xml_escape() into &xyz; format:
1187 # This allows us to have #define macros interspersed in a struct.
1188 $prm =~ s/\\\\\\/\&/g;
1189 print "$prm\n";
1190 next;
1191 }
1192
1193 my $parameter_name = $parameter;
1194 $parameter_name =~ s/\[.*//;
1195
1196 defined($args{'parameterdescs'}{$parameter_name}) || next;
1197 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1198 $type = $args{'parametertypes'}{$parameter};
1199 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1200 # pointer-to-function
1201 print " $1 $parameter) ($2);\n";
1202 } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1203 # bitfield
1204 print " $1 $parameter$2;\n";
1205 } else {
1206 print " " . $type . " " . $parameter . ";\n";
1207 }
1208 }
1209 print "};";
1210 print " </programlisting>\n";
1211 print "</refsynopsisdiv>\n";
1212
1213 print " <refsect1>\n";
1214 print " <title>Members</title>\n";
1215
1216 if ($#{$args{'parameterlist'}} >= 0) {
1217 print " <variablelist>\n";
1218 foreach $parameter (@{$args{'parameterlist'}}) {
1219 ($parameter =~ /^#/) && next;
1220
1221 my $parameter_name = $parameter;
1222 $parameter_name =~ s/\[.*//;
1223
1224 defined($args{'parameterdescs'}{$parameter_name}) || next;
1225 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1226 print " <varlistentry>";
1227 print " <term>$parameter</term>\n";
1228 print " <listitem><para>\n";
1229 output_highlight($args{'parameterdescs'}{$parameter_name});
1230 print " </para></listitem>\n";
1231 print " </varlistentry>\n";
1232 }
1233 print " </variablelist>\n";
1234 } else {
1235 print " <para>\n None\n </para>\n";
1236 }
1237 print " </refsect1>\n";
1238
1239 output_section_xml(@_);
1240
1241 print "</refentry>\n\n";
1242}
1243
1244# output enum in XML DocBook
1245sub output_enum_xml(%) {
1246 my %args = %{$_[0]};
1247 my ($parameter, $section);
1248 my $count;
1249 my $id;
1250
1251 $id = "API-enum-" . $args{'enum'};
1252 $id =~ s/[^A-Za-z0-9]/-/g;
1253
1254 print "<refentry id=\"$id\">\n";
1255 print "<refentryinfo>\n";
1256 print " <title>LINUX</title>\n";
1257 print " <productname>Kernel Hackers Manual</productname>\n";
1258 print " <date>$man_date</date>\n";
1259 print "</refentryinfo>\n";
1260 print "<refmeta>\n";
1261 print " <refentrytitle><phrase>enum " . $args{'enum'} . "</phrase></refentrytitle>\n";
1262 print " <manvolnum>9</manvolnum>\n";
1263 print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
1264 print "</refmeta>\n";
1265 print "<refnamediv>\n";
1266 print " <refname>enum " . $args{'enum'} . "</refname>\n";
1267 print " <refpurpose>\n";
1268 print " ";
1269 output_highlight ($args{'purpose'});
1270 print " </refpurpose>\n";
1271 print "</refnamediv>\n";
1272
1273 print "<refsynopsisdiv>\n";
1274 print " <title>Synopsis</title>\n";
1275 print " <programlisting>\n";
1276 print "enum " . $args{'enum'} . " {\n";
1277 $count = 0;
1278 foreach $parameter (@{$args{'parameterlist'}}) {
1279 print " $parameter";
1280 if ($count != $#{$args{'parameterlist'}}) {
1281 $count++;
1282 print ",";
1283 }
1284 print "\n";
1285 }
1286 print "};";
1287 print " </programlisting>\n";
1288 print "</refsynopsisdiv>\n";
1289
1290 print "<refsect1>\n";
1291 print " <title>Constants</title>\n";
1292 print " <variablelist>\n";
1293 foreach $parameter (@{$args{'parameterlist'}}) {
1294 my $parameter_name = $parameter;
1295 $parameter_name =~ s/\[.*//;
1296
1297 print " <varlistentry>";
1298 print " <term>$parameter</term>\n";
1299 print " <listitem><para>\n";
1300 output_highlight($args{'parameterdescs'}{$parameter_name});
1301 print " </para></listitem>\n";
1302 print " </varlistentry>\n";
1303 }
1304 print " </variablelist>\n";
1305 print "</refsect1>\n";
1306
1307 output_section_xml(@_);
1308
1309 print "</refentry>\n\n";
1310}
1311
1312# output typedef in XML DocBook
1313sub output_typedef_xml(%) {
1314 my %args = %{$_[0]};
1315 my ($parameter, $section);
1316 my $id;
1317
1318 $id = "API-typedef-" . $args{'typedef'};
1319 $id =~ s/[^A-Za-z0-9]/-/g;
1320
1321 print "<refentry id=\"$id\">\n";
1322 print "<refentryinfo>\n";
1323 print " <title>LINUX</title>\n";
1324 print " <productname>Kernel Hackers Manual</productname>\n";
1325 print " <date>$man_date</date>\n";
1326 print "</refentryinfo>\n";
1327 print "<refmeta>\n";
1328 print " <refentrytitle><phrase>typedef " . $args{'typedef'} . "</phrase></refentrytitle>\n";
1329 print " <manvolnum>9</manvolnum>\n";
1330 print "</refmeta>\n";
1331 print "<refnamediv>\n";
1332 print " <refname>typedef " . $args{'typedef'} . "</refname>\n";
1333 print " <refpurpose>\n";
1334 print " ";
1335 output_highlight ($args{'purpose'});
1336 print " </refpurpose>\n";
1337 print "</refnamediv>\n";
1338
1339 print "<refsynopsisdiv>\n";
1340 print " <title>Synopsis</title>\n";
1341 print " <synopsis>typedef " . $args{'typedef'} . ";</synopsis>\n";
1342 print "</refsynopsisdiv>\n";
1343
1344 output_section_xml(@_);
1345
1346 print "</refentry>\n\n";
1347}
1348
1349# output in XML DocBook
1350sub output_blockhead_xml(%) {
1351 my %args = %{$_[0]};
1352 my ($parameter, $section);
1353 my $count;
1354
1355 my $id = $args{'module'};
1356 $id =~ s/[^A-Za-z0-9]/-/g;
1357
1358 # print out each section
1359 $lineprefix=" ";
1360 foreach $section (@{$args{'sectionlist'}}) {
1361 if (!$args{'content-only'}) {
1362 print "<refsect1>\n <title>$section</title>\n";
1363 }
1364 if ($section =~ m/EXAMPLE/i) {
1365 print "<example><para>\n";
1366 $output_preformatted = 1;
1367 } else {
1368 print "<para>\n";
1369 }
1370 output_highlight($args{'sections'}{$section});
1371 $output_preformatted = 0;
1372 if ($section =~ m/EXAMPLE/i) {
1373 print "</para></example>\n";
1374 } else {
1375 print "</para>";
1376 }
1377 if (!$args{'content-only'}) {
1378 print "\n</refsect1>\n";
1379 }
1380 }
1381
1382 print "\n\n";
1383}
1384
1385# output in XML DocBook
1386sub output_function_gnome {
1387 my %args = %{$_[0]};
1388 my ($parameter, $section);
1389 my $count;
1390 my $id;
1391
1392 $id = $args{'module'} . "-" . $args{'function'};
1393 $id =~ s/[^A-Za-z0-9]/-/g;
1394
1395 print "<sect2>\n";
1396 print " <title id=\"$id\">" . $args{'function'} . "</title>\n";
1397
1398 print " <funcsynopsis>\n";
1399 print " <funcdef>" . $args{'functiontype'} . " ";
1400 print "<function>" . $args{'function'} . " ";
1401 print "</function></funcdef>\n";
1402
1403 $count = 0;
1404 if ($#{$args{'parameterlist'}} >= 0) {
1405 foreach $parameter (@{$args{'parameterlist'}}) {
1406 $type = $args{'parametertypes'}{$parameter};
1407 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1408 # pointer-to-function
1409 print " <paramdef>$1 <parameter>$parameter</parameter>)\n";
1410 print " <funcparams>$2</funcparams></paramdef>\n";
1411 } else {
1412 print " <paramdef>" . $type;
1413 print " <parameter>$parameter</parameter></paramdef>\n";
1414 }
1415 }
1416 } else {
1417 print " <void>\n";
1418 }
1419 print " </funcsynopsis>\n";
1420 if ($#{$args{'parameterlist'}} >= 0) {
1421 print " <informaltable pgwide=\"1\" frame=\"none\" role=\"params\">\n";
1422 print "<tgroup cols=\"2\">\n";
1423 print "<colspec colwidth=\"2*\">\n";
1424 print "<colspec colwidth=\"8*\">\n";
1425 print "<tbody>\n";
1426 foreach $parameter (@{$args{'parameterlist'}}) {
1427 my $parameter_name = $parameter;
1428 $parameter_name =~ s/\[.*//;
1429
1430 print " <row><entry align=\"right\"><parameter>$parameter</parameter></entry>\n";
1431 print " <entry>\n";
1432 $lineprefix=" ";
1433 output_highlight($args{'parameterdescs'}{$parameter_name});
1434 print " </entry></row>\n";
1435 }
1436 print " </tbody></tgroup></informaltable>\n";
1437 } else {
1438 print " <para>\n None\n </para>\n";
1439 }
1440
1441 # print out each section
1442 $lineprefix=" ";
1443 foreach $section (@{$args{'sectionlist'}}) {
1444 print "<simplesect>\n <title>$section</title>\n";
1445 if ($section =~ m/EXAMPLE/i) {
1446 print "<example><programlisting>\n";
1447 $output_preformatted = 1;
1448 } else {
1449 }
1450 print "<para>\n";
1451 output_highlight($args{'sections'}{$section});
1452 $output_preformatted = 0;
1453 print "</para>\n";
1454 if ($section =~ m/EXAMPLE/i) {
1455 print "</programlisting></example>\n";
1456 } else {
1457 }
1458 print " </simplesect>\n";
1459 }
1460
1461 print "</sect2>\n\n";
1462}
1463
1464##
1465# output function in man
1466sub output_function_man(%) {
1467 my %args = %{$_[0]};
1468 my ($parameter, $section);
1469 my $count;
1470
1471 print ".TH \"$args{'function'}\" 9 \"$args{'function'}\" \"$man_date\" \"Kernel Hacker's Manual\" LINUX\n";
1472
1473 print ".SH NAME\n";
1474 print $args{'function'} . " \\- " . $args{'purpose'} . "\n";
1475
1476 print ".SH SYNOPSIS\n";
1477 if ($args{'functiontype'} ne "") {
1478 print ".B \"" . $args{'functiontype'} . "\" " . $args{'function'} . "\n";
1479 } else {
1480 print ".B \"" . $args{'function'} . "\n";
1481 }
1482 $count = 0;
1483 my $parenth = "(";
1484 my $post = ",";
1485 foreach my $parameter (@{$args{'parameterlist'}}) {
1486 if ($count == $#{$args{'parameterlist'}}) {
1487 $post = ");";
1488 }
1489 $type = $args{'parametertypes'}{$parameter};
1490 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1491 # pointer-to-function
1492 print ".BI \"" . $parenth . $1 . "\" " . $parameter . " \") (" . $2 . ")" . $post . "\"\n";
1493 } else {
1494 $type =~ s/([^\*])$/$1 /;
1495 print ".BI \"" . $parenth . $type . "\" " . $parameter . " \"" . $post . "\"\n";
1496 }
1497 $count++;
1498 $parenth = "";
1499 }
1500
1501 print ".SH ARGUMENTS\n";
1502 foreach $parameter (@{$args{'parameterlist'}}) {
1503 my $parameter_name = $parameter;
1504 $parameter_name =~ s/\[.*//;
1505
1506 print ".IP \"" . $parameter . "\" 12\n";
1507 output_highlight($args{'parameterdescs'}{$parameter_name});
1508 }
1509 foreach $section (@{$args{'sectionlist'}}) {
1510 print ".SH \"", uc $section, "\"\n";
1511 output_highlight($args{'sections'}{$section});
1512 }
1513}
1514
1515##
1516# output enum in man
1517sub output_enum_man(%) {
1518 my %args = %{$_[0]};
1519 my ($parameter, $section);
1520 my $count;
1521
1522 print ".TH \"$args{'module'}\" 9 \"enum $args{'enum'}\" \"$man_date\" \"API Manual\" LINUX\n";
1523
1524 print ".SH NAME\n";
1525 print "enum " . $args{'enum'} . " \\- " . $args{'purpose'} . "\n";
1526
1527 print ".SH SYNOPSIS\n";
1528 print "enum " . $args{'enum'} . " {\n";
1529 $count = 0;
1530 foreach my $parameter (@{$args{'parameterlist'}}) {
1531 print ".br\n.BI \" $parameter\"\n";
1532 if ($count == $#{$args{'parameterlist'}}) {
1533 print "\n};\n";
1534 last;
1535 }
1536 else {
1537 print ", \n.br\n";
1538 }
1539 $count++;
1540 }
1541
1542 print ".SH Constants\n";
1543 foreach $parameter (@{$args{'parameterlist'}}) {
1544 my $parameter_name = $parameter;
1545 $parameter_name =~ s/\[.*//;
1546
1547 print ".IP \"" . $parameter . "\" 12\n";
1548 output_highlight($args{'parameterdescs'}{$parameter_name});
1549 }
1550 foreach $section (@{$args{'sectionlist'}}) {
1551 print ".SH \"$section\"\n";
1552 output_highlight($args{'sections'}{$section});
1553 }
1554}
1555
1556##
1557# output struct in man
1558sub output_struct_man(%) {
1559 my %args = %{$_[0]};
1560 my ($parameter, $section);
1561
1562 print ".TH \"$args{'module'}\" 9 \"" . $args{'type'} . " " . $args{'struct'} . "\" \"$man_date\" \"API Manual\" LINUX\n";
1563
1564 print ".SH NAME\n";
1565 print $args{'type'} . " " . $args{'struct'} . " \\- " . $args{'purpose'} . "\n";
1566
1567 print ".SH SYNOPSIS\n";
1568 print $args{'type'} . " " . $args{'struct'} . " {\n.br\n";
1569
1570 foreach my $parameter (@{$args{'parameterlist'}}) {
1571 if ($parameter =~ /^#/) {
1572 print ".BI \"$parameter\"\n.br\n";
1573 next;
1574 }
1575 my $parameter_name = $parameter;
1576 $parameter_name =~ s/\[.*//;
1577
1578 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1579 $type = $args{'parametertypes'}{$parameter};
1580 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1581 # pointer-to-function
1582 print ".BI \" " . $1 . "\" " . $parameter . " \") (" . $2 . ")" . "\"\n;\n";
1583 } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1584 # bitfield
1585 print ".BI \" " . $1 . "\ \" " . $parameter . $2 . " \"" . "\"\n;\n";
1586 } else {
1587 $type =~ s/([^\*])$/$1 /;
1588 print ".BI \" " . $type . "\" " . $parameter . " \"" . "\"\n;\n";
1589 }
1590 print "\n.br\n";
1591 }
1592 print "};\n.br\n";
1593
1594 print ".SH Members\n";
1595 foreach $parameter (@{$args{'parameterlist'}}) {
1596 ($parameter =~ /^#/) && next;
1597
1598 my $parameter_name = $parameter;
1599 $parameter_name =~ s/\[.*//;
1600
1601 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1602 print ".IP \"" . $parameter . "\" 12\n";
1603 output_highlight($args{'parameterdescs'}{$parameter_name});
1604 }
1605 foreach $section (@{$args{'sectionlist'}}) {
1606 print ".SH \"$section\"\n";
1607 output_highlight($args{'sections'}{$section});
1608 }
1609}
1610
1611##
1612# output typedef in man
1613sub output_typedef_man(%) {
1614 my %args = %{$_[0]};
1615 my ($parameter, $section);
1616
1617 print ".TH \"$args{'module'}\" 9 \"$args{'typedef'}\" \"$man_date\" \"API Manual\" LINUX\n";
1618
1619 print ".SH NAME\n";
1620 print "typedef " . $args{'typedef'} . " \\- " . $args{'purpose'} . "\n";
1621
1622 foreach $section (@{$args{'sectionlist'}}) {
1623 print ".SH \"$section\"\n";
1624 output_highlight($args{'sections'}{$section});
1625 }
1626}
1627
1628sub output_blockhead_man(%) {
1629 my %args = %{$_[0]};
1630 my ($parameter, $section);
1631 my $count;
1632
1633 print ".TH \"$args{'module'}\" 9 \"$args{'module'}\" \"$man_date\" \"API Manual\" LINUX\n";
1634
1635 foreach $section (@{$args{'sectionlist'}}) {
1636 print ".SH \"$section\"\n";
1637 output_highlight($args{'sections'}{$section});
1638 }
1639}
1640
1641##
1642# output in text
1643sub output_function_text(%) {
1644 my %args = %{$_[0]};
1645 my ($parameter, $section);
1646 my $start;
1647
1648 print "Name:\n\n";
1649 print $args{'function'} . " - " . $args{'purpose'} . "\n";
1650
1651 print "\nSynopsis:\n\n";
1652 if ($args{'functiontype'} ne "") {
1653 $start = $args{'functiontype'} . " " . $args{'function'} . " (";
1654 } else {
1655 $start = $args{'function'} . " (";
1656 }
1657 print $start;
1658
1659 my $count = 0;
1660 foreach my $parameter (@{$args{'parameterlist'}}) {
1661 $type = $args{'parametertypes'}{$parameter};
1662 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1663 # pointer-to-function
1664 print $1 . $parameter . ") (" . $2;
1665 } else {
1666 print $type . " " . $parameter;
1667 }
1668 if ($count != $#{$args{'parameterlist'}}) {
1669 $count++;
1670 print ",\n";
1671 print " " x length($start);
1672 } else {
1673 print ");\n\n";
1674 }
1675 }
1676
1677 print "Arguments:\n\n";
1678 foreach $parameter (@{$args{'parameterlist'}}) {
1679 my $parameter_name = $parameter;
1680 $parameter_name =~ s/\[.*//;
1681
1682 print $parameter . "\n\t" . $args{'parameterdescs'}{$parameter_name} . "\n";
1683 }
1684 output_section_text(@_);
1685}
1686
1687#output sections in text
1688sub output_section_text(%) {
1689 my %args = %{$_[0]};
1690 my $section;
1691
1692 print "\n";
1693 foreach $section (@{$args{'sectionlist'}}) {
1694 print "$section:\n\n";
1695 output_highlight($args{'sections'}{$section});
1696 }
1697 print "\n\n";
1698}
1699
1700# output enum in text
1701sub output_enum_text(%) {
1702 my %args = %{$_[0]};
1703 my ($parameter);
1704 my $count;
1705 print "Enum:\n\n";
1706
1707 print "enum " . $args{'enum'} . " - " . $args{'purpose'} . "\n\n";
1708 print "enum " . $args{'enum'} . " {\n";
1709 $count = 0;
1710 foreach $parameter (@{$args{'parameterlist'}}) {
1711 print "\t$parameter";
1712 if ($count != $#{$args{'parameterlist'}}) {
1713 $count++;
1714 print ",";
1715 }
1716 print "\n";
1717 }
1718 print "};\n\n";
1719
1720 print "Constants:\n\n";
1721 foreach $parameter (@{$args{'parameterlist'}}) {
1722 print "$parameter\n\t";
1723 print $args{'parameterdescs'}{$parameter} . "\n";
1724 }
1725
1726 output_section_text(@_);
1727}
1728
1729# output typedef in text
1730sub output_typedef_text(%) {
1731 my %args = %{$_[0]};
1732 my ($parameter);
1733 my $count;
1734 print "Typedef:\n\n";
1735
1736 print "typedef " . $args{'typedef'} . " - " . $args{'purpose'} . "\n";
1737 output_section_text(@_);
1738}
1739
1740# output struct as text
1741sub output_struct_text(%) {
1742 my %args = %{$_[0]};
1743 my ($parameter);
1744
1745 print $args{'type'} . " " . $args{'struct'} . " - " . $args{'purpose'} . "\n\n";
1746 print $args{'type'} . " " . $args{'struct'} . " {\n";
1747 foreach $parameter (@{$args{'parameterlist'}}) {
1748 if ($parameter =~ /^#/) {
1749 print "$parameter\n";
1750 next;
1751 }
1752
1753 my $parameter_name = $parameter;
1754 $parameter_name =~ s/\[.*//;
1755
1756 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1757 $type = $args{'parametertypes'}{$parameter};
1758 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1759 # pointer-to-function
1760 print "\t$1 $parameter) ($2);\n";
1761 } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1762 # bitfield
1763 print "\t$1 $parameter$2;\n";
1764 } else {
1765 print "\t" . $type . " " . $parameter . ";\n";
1766 }
1767 }
1768 print "};\n\n";
1769
1770 print "Members:\n\n";
1771 foreach $parameter (@{$args{'parameterlist'}}) {
1772 ($parameter =~ /^#/) && next;
1773
1774 my $parameter_name = $parameter;
1775 $parameter_name =~ s/\[.*//;
1776
1777 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1778 print "$parameter\n\t";
1779 print $args{'parameterdescs'}{$parameter_name} . "\n";
1780 }
1781 print "\n";
1782 output_section_text(@_);
1783}
1784
1785sub output_blockhead_text(%) {
1786 my %args = %{$_[0]};
1787 my ($parameter, $section);
1788
1789 foreach $section (@{$args{'sectionlist'}}) {
1790 print " $section:\n";
1791 print " -> ";
1792 output_highlight($args{'sections'}{$section});
1793 }
1794}
1795
1796##
1797# output in restructured text
1798#
1799
1800#
1801# This could use some work; it's used to output the DOC: sections, and
1802# starts by putting out the name of the doc section itself, but that tends
1803# to duplicate a header already in the template file.
1804#
1805sub output_blockhead_rst(%) {
1806 my %args = %{$_[0]};
1807 my ($parameter, $section);
1808
1809 foreach $section (@{$args{'sectionlist'}}) {
1810 if ($output_selection != OUTPUT_INCLUDE) {
1811 print "**$section**\n\n";
1812 }
1813 print_lineno($section_start_lines{$section});
1814 output_highlight_rst($args{'sections'}{$section});
1815 print "\n";
1816 }
1817}
1818
1819sub output_highlight_rst {
1820 my $contents = join "\n",@_;
1821 my $line;
1822
1823 # undo the evil effects of xml_escape() earlier
1824 $contents = xml_unescape($contents);
1825
1826 eval $dohighlight;
1827 die $@ if $@;
1828
1829 foreach $line (split "\n", $contents) {
1830 print $lineprefix . $line . "\n";
1831 }
1832}
1833
1834sub output_function_rst(%) {
1835 my %args = %{$_[0]};
1836 my ($parameter, $section);
1837 my $oldprefix = $lineprefix;
1838 my $start = "";
1839
1840 if ($args{'typedef'}) {
1841 print ".. c:type:: ". $args{'function'} . "\n\n";
1842 print_lineno($declaration_start_line);
1843 print " **Typedef**: ";
1844 $lineprefix = "";
1845 output_highlight_rst($args{'purpose'});
1846 $start = "\n\n**Syntax**\n\n ``";
1847 } else {
1848 print ".. c:function:: ";
1849 }
1850 if ($args{'functiontype'} ne "") {
1851 $start .= $args{'functiontype'} . " " . $args{'function'} . " (";
1852 } else {
1853 $start .= $args{'function'} . " (";
1854 }
1855 print $start;
1856
1857 my $count = 0;
1858 foreach my $parameter (@{$args{'parameterlist'}}) {
1859 if ($count ne 0) {
1860 print ", ";
1861 }
1862 $count++;
1863 $type = $args{'parametertypes'}{$parameter};
1864
1865 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1866 # pointer-to-function
1867 print $1 . $parameter . ") (" . $2;
1868 } else {
1869 print $type . " " . $parameter;
1870 }
1871 }
1872 if ($args{'typedef'}) {
1873 print ");``\n\n";
1874 } else {
1875 print ")\n\n";
1876 print_lineno($declaration_start_line);
1877 $lineprefix = " ";
1878 output_highlight_rst($args{'purpose'});
1879 print "\n";
1880 }
1881
1882 print "**Parameters**\n\n";
1883 $lineprefix = " ";
1884 foreach $parameter (@{$args{'parameterlist'}}) {
1885 my $parameter_name = $parameter;
1886 #$parameter_name =~ s/\[.*//;
1887 $type = $args{'parametertypes'}{$parameter};
1888
1889 if ($type ne "") {
1890 print "``$type $parameter``\n";
1891 } else {
1892 print "``$parameter``\n";
1893 }
1894
1895 print_lineno($parameterdesc_start_lines{$parameter_name});
1896
1897 if (defined($args{'parameterdescs'}{$parameter_name}) &&
1898 $args{'parameterdescs'}{$parameter_name} ne $undescribed) {
1899 output_highlight_rst($args{'parameterdescs'}{$parameter_name});
1900 } else {
1901 print " *undescribed*\n";
1902 }
1903 print "\n";
1904 }
1905
1906 $lineprefix = $oldprefix;
1907 output_section_rst(@_);
1908}
1909
1910sub output_section_rst(%) {
1911 my %args = %{$_[0]};
1912 my $section;
1913 my $oldprefix = $lineprefix;
1914 $lineprefix = "";
1915
1916 foreach $section (@{$args{'sectionlist'}}) {
1917 print "**$section**\n\n";
1918 print_lineno($section_start_lines{$section});
1919 output_highlight_rst($args{'sections'}{$section});
1920 print "\n";
1921 }
1922 print "\n";
1923 $lineprefix = $oldprefix;
1924}
1925
1926sub output_enum_rst(%) {
1927 my %args = %{$_[0]};
1928 my ($parameter);
1929 my $oldprefix = $lineprefix;
1930 my $count;
1931 my $name = "enum " . $args{'enum'};
1932
1933 print "\n\n.. c:type:: " . $name . "\n\n";
1934 print_lineno($declaration_start_line);
1935 $lineprefix = " ";
1936 output_highlight_rst($args{'purpose'});
1937 print "\n";
1938
1939 print "**Constants**\n\n";
1940 $lineprefix = " ";
1941 foreach $parameter (@{$args{'parameterlist'}}) {
1942 print "``$parameter``\n";
1943 if ($args{'parameterdescs'}{$parameter} ne $undescribed) {
1944 output_highlight_rst($args{'parameterdescs'}{$parameter});
1945 } else {
1946 print " *undescribed*\n";
1947 }
1948 print "\n";
1949 }
1950
1951 $lineprefix = $oldprefix;
1952 output_section_rst(@_);
1953}
1954
1955sub output_typedef_rst(%) {
1956 my %args = %{$_[0]};
1957 my ($parameter);
1958 my $oldprefix = $lineprefix;
1959 my $name = "typedef " . $args{'typedef'};
1960
1961 print "\n\n.. c:type:: " . $name . "\n\n";
1962 print_lineno($declaration_start_line);
1963 $lineprefix = " ";
1964 output_highlight_rst($args{'purpose'});
1965 print "\n";
1966
1967 $lineprefix = $oldprefix;
1968 output_section_rst(@_);
1969}
1970
1971sub output_struct_rst(%) {
1972 my %args = %{$_[0]};
1973 my ($parameter);
1974 my $oldprefix = $lineprefix;
1975 my $name = $args{'type'} . " " . $args{'struct'};
1976
1977 print "\n\n.. c:type:: " . $name . "\n\n";
1978 print_lineno($declaration_start_line);
1979 $lineprefix = " ";
1980 output_highlight_rst($args{'purpose'});
1981 print "\n";
1982
1983 print "**Definition**\n\n";
1984 print "::\n\n";
1985 print " " . $args{'type'} . " " . $args{'struct'} . " {\n";
1986 foreach $parameter (@{$args{'parameterlist'}}) {
1987 if ($parameter =~ /^#/) {
1988 print " " . "$parameter\n";
1989 next;
1990 }
1991
1992 my $parameter_name = $parameter;
1993 $parameter_name =~ s/\[.*//;
1994
1995 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1996 $type = $args{'parametertypes'}{$parameter};
1997 if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1998 # pointer-to-function
1999 print " $1 $parameter) ($2);\n";
2000 } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
2001 # bitfield
2002 print " $1 $parameter$2;\n";
2003 } else {
2004 print " " . $type . " " . $parameter . ";\n";
2005 }
2006 }
2007 print " };\n\n";
2008
2009 print "**Members**\n\n";
2010 $lineprefix = " ";
2011 foreach $parameter (@{$args{'parameterlist'}}) {
2012 ($parameter =~ /^#/) && next;
2013
2014 my $parameter_name = $parameter;
2015 $parameter_name =~ s/\[.*//;
2016
2017 ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
2018 $type = $args{'parametertypes'}{$parameter};
2019 print_lineno($parameterdesc_start_lines{$parameter_name});
2020 print "``" . $parameter . "``\n";
2021 output_highlight_rst($args{'parameterdescs'}{$parameter_name});
2022 print "\n";
2023 }
2024 print "\n";
2025
2026 $lineprefix = $oldprefix;
2027 output_section_rst(@_);
2028}
2029
2030
2031## list mode output functions
2032
2033sub output_function_list(%) {
2034 my %args = %{$_[0]};
2035
2036 print $args{'function'} . "\n";
2037}
2038
2039# output enum in list
2040sub output_enum_list(%) {
2041 my %args = %{$_[0]};
2042 print $args{'enum'} . "\n";
2043}
2044
2045# output typedef in list
2046sub output_typedef_list(%) {
2047 my %args = %{$_[0]};
2048 print $args{'typedef'} . "\n";
2049}
2050
2051# output struct as list
2052sub output_struct_list(%) {
2053 my %args = %{$_[0]};
2054
2055 print $args{'struct'} . "\n";
2056}
2057
2058sub output_blockhead_list(%) {
2059 my %args = %{$_[0]};
2060 my ($parameter, $section);
2061
2062 foreach $section (@{$args{'sectionlist'}}) {
2063 print "DOC: $section\n";
2064 }
2065}
2066
2067##
2068# generic output function for all types (function, struct/union, typedef, enum);
2069# calls the generated, variable output_ function name based on
2070# functype and output_mode
2071sub output_declaration {
2072 no strict 'refs';
2073 my $name = shift;
2074 my $functype = shift;
2075 my $func = "output_${functype}_$output_mode";
2076 if (($output_selection == OUTPUT_ALL) ||
2077 (($output_selection == OUTPUT_INCLUDE ||
2078 $output_selection == OUTPUT_EXPORTED) &&
2079 defined($function_table{$name})) ||
2080 (($output_selection == OUTPUT_EXCLUDE ||
2081 $output_selection == OUTPUT_INTERNAL) &&
2082 !($functype eq "function" && defined($function_table{$name}))))
2083 {
2084 &$func(@_);
2085 $section_counter++;
2086 }
2087}
2088
2089##
2090# generic output function - calls the right one based on current output mode.
2091sub output_blockhead {
2092 no strict 'refs';
2093 my $func = "output_blockhead_" . $output_mode;
2094 &$func(@_);
2095 $section_counter++;
2096}
2097
2098##
2099# takes a declaration (struct, union, enum, typedef) and
2100# invokes the right handler. NOT called for functions.
2101sub dump_declaration($$) {
2102 no strict 'refs';
2103 my ($prototype, $file) = @_;
2104 my $func = "dump_" . $decl_type;
2105 &$func(@_);
2106}
2107
2108sub dump_union($$) {
2109 dump_struct(@_);
2110}
2111
2112sub dump_struct($$) {
2113 my $x = shift;
2114 my $file = shift;
2115 my $nested;
2116
2117 if ($x =~ /(struct|union)\s+(\w+)\s*{(.*)}/) {
2118 #my $decl_type = $1;
2119 $declaration_name = $2;
2120 my $members = $3;
2121
2122 # ignore embedded structs or unions
2123 $members =~ s/({.*})//g;
2124 $nested = $1;
2125
2126 # ignore members marked private:
2127 $members =~ s/\/\*\s*private:.*?\/\*\s*public:.*?\*\///gosi;
2128 $members =~ s/\/\*\s*private:.*//gosi;
2129 # strip comments:
2130 $members =~ s/\/\*.*?\*\///gos;
2131 $nested =~ s/\/\*.*?\*\///gos;
2132 # strip kmemcheck_bitfield_{begin,end}.*;
2133 $members =~ s/kmemcheck_bitfield_.*?;//gos;
2134 # strip attributes
2135 $members =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
2136 $members =~ s/__aligned\s*\([^;]*\)//gos;
2137 $members =~ s/\s*CRYPTO_MINALIGN_ATTR//gos;
2138 # replace DECLARE_BITMAP
2139 $members =~ s/DECLARE_BITMAP\s*\(([^,)]+), ([^,)]+)\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
2140
2141 create_parameterlist($members, ';', $file);
2142 check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested);
2143
2144 output_declaration($declaration_name,
2145 'struct',
2146 {'struct' => $declaration_name,
2147 'module' => $modulename,
2148 'parameterlist' => \@parameterlist,
2149 'parameterdescs' => \%parameterdescs,
2150 'parametertypes' => \%parametertypes,
2151 'sectionlist' => \@sectionlist,
2152 'sections' => \%sections,
2153 'purpose' => $declaration_purpose,
2154 'type' => $decl_type
2155 });
2156 }
2157 else {
2158 print STDERR "${file}:$.: error: Cannot parse struct or union!\n";
2159 ++$errors;
2160 }
2161}
2162
2163sub dump_enum($$) {
2164 my $x = shift;
2165 my $file = shift;
2166
2167 $x =~ s@/\*.*?\*/@@gos; # strip comments.
2168 # strip #define macros inside enums
2169 $x =~ s@#\s*((define|ifdef)\s+|endif)[^;]*;@@gos;
2170
2171 if ($x =~ /enum\s+(\w+)\s*{(.*)}/) {
2172 $declaration_name = $1;
2173 my $members = $2;
2174
2175 foreach my $arg (split ',', $members) {
2176 $arg =~ s/^\s*(\w+).*/$1/;
2177 push @parameterlist, $arg;
2178 if (!$parameterdescs{$arg}) {
2179 $parameterdescs{$arg} = $undescribed;
2180 print STDERR "${file}:$.: warning: Enum value '$arg' ".
2181 "not described in enum '$declaration_name'\n";
2182 }
2183
2184 }
2185
2186 output_declaration($declaration_name,
2187 'enum',
2188 {'enum' => $declaration_name,
2189 'module' => $modulename,
2190 'parameterlist' => \@parameterlist,
2191 'parameterdescs' => \%parameterdescs,
2192 'sectionlist' => \@sectionlist,
2193 'sections' => \%sections,
2194 'purpose' => $declaration_purpose
2195 });
2196 }
2197 else {
2198 print STDERR "${file}:$.: error: Cannot parse enum!\n";
2199 ++$errors;
2200 }
2201}
2202
2203sub dump_typedef($$) {
2204 my $x = shift;
2205 my $file = shift;
2206
2207 $x =~ s@/\*.*?\*/@@gos; # strip comments.
2208
2209 # Parse function prototypes
2210 if ($x =~ /typedef\s+(\w+)\s*\(\*\s*(\w\S+)\s*\)\s*\((.*)\);/ ||
2211 $x =~ /typedef\s+(\w+)\s*(\w\S+)\s*\s*\((.*)\);/) {
2212
2213 # Function typedefs
2214 $return_type = $1;
2215 $declaration_name = $2;
2216 my $args = $3;
2217
2218 create_parameterlist($args, ',', $file);
2219
2220 output_declaration($declaration_name,
2221 'function',
2222 {'function' => $declaration_name,
2223 'typedef' => 1,
2224 'module' => $modulename,
2225 'functiontype' => $return_type,
2226 'parameterlist' => \@parameterlist,
2227 'parameterdescs' => \%parameterdescs,
2228 'parametertypes' => \%parametertypes,
2229 'sectionlist' => \@sectionlist,
2230 'sections' => \%sections,
2231 'purpose' => $declaration_purpose
2232 });
2233 return;
2234 }
2235
2236 while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
2237 $x =~ s/\(*.\)\s*;$/;/;
2238 $x =~ s/\[*.\]\s*;$/;/;
2239 }
2240
2241 if ($x =~ /typedef.*\s+(\w+)\s*;/) {
2242 $declaration_name = $1;
2243
2244 output_declaration($declaration_name,
2245 'typedef',
2246 {'typedef' => $declaration_name,
2247 'module' => $modulename,
2248 'sectionlist' => \@sectionlist,
2249 'sections' => \%sections,
2250 'purpose' => $declaration_purpose
2251 });
2252 }
2253 else {
2254 print STDERR "${file}:$.: error: Cannot parse typedef!\n";
2255 ++$errors;
2256 }
2257}
2258
2259sub save_struct_actual($) {
2260 my $actual = shift;
2261
2262 # strip all spaces from the actual param so that it looks like one string item
2263 $actual =~ s/\s*//g;
2264 $struct_actual = $struct_actual . $actual . " ";
2265}
2266
2267sub create_parameterlist($$$) {
2268 my $args = shift;
2269 my $splitter = shift;
2270 my $file = shift;
2271 my $type;
2272 my $param;
2273
2274 # temporarily replace commas inside function pointer definition
2275 while ($args =~ /(\([^\),]+),/) {
2276 $args =~ s/(\([^\),]+),/$1#/g;
2277 }
2278
2279 foreach my $arg (split($splitter, $args)) {
2280 # strip comments
2281 $arg =~ s/\/\*.*\*\///;
2282 # strip leading/trailing spaces
2283 $arg =~ s/^\s*//;
2284 $arg =~ s/\s*$//;
2285 $arg =~ s/\s+/ /;
2286
2287 if ($arg =~ /^#/) {
2288 # Treat preprocessor directive as a typeless variable just to fill
2289 # corresponding data structures "correctly". Catch it later in
2290 # output_* subs.
2291 push_parameter($arg, "", $file);
2292 } elsif ($arg =~ m/\(.+\)\s*\(/) {
2293 # pointer-to-function
2294 $arg =~ tr/#/,/;
2295 $arg =~ m/[^\(]+\(\*?\s*(\w*)\s*\)/;
2296 $param = $1;
2297 $type = $arg;
2298 $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
2299 save_struct_actual($param);
2300 push_parameter($param, $type, $file);
2301 } elsif ($arg) {
2302 $arg =~ s/\s*:\s*/:/g;
2303 $arg =~ s/\s*\[/\[/g;
2304
2305 my @args = split('\s*,\s*', $arg);
2306 if ($args[0] =~ m/\*/) {
2307 $args[0] =~ s/(\*+)\s*/ $1/;
2308 }
2309
2310 my @first_arg;
2311 if ($args[0] =~ /^(.*\s+)(.*?\[.*\].*)$/) {
2312 shift @args;
2313 push(@first_arg, split('\s+', $1));
2314 push(@first_arg, $2);
2315 } else {
2316 @first_arg = split('\s+', shift @args);
2317 }
2318
2319 unshift(@args, pop @first_arg);
2320 $type = join " ", @first_arg;
2321
2322 foreach $param (@args) {
2323 if ($param =~ m/^(\*+)\s*(.*)/) {
2324 save_struct_actual($2);
2325 push_parameter($2, "$type $1", $file);
2326 }
2327 elsif ($param =~ m/(.*?):(\d+)/) {
2328 if ($type ne "") { # skip unnamed bit-fields
2329 save_struct_actual($1);
2330 push_parameter($1, "$type:$2", $file)
2331 }
2332 }
2333 else {
2334 save_struct_actual($param);
2335 push_parameter($param, $type, $file);
2336 }
2337 }
2338 }
2339 }
2340}
2341
2342sub push_parameter($$$) {
2343 my $param = shift;
2344 my $type = shift;
2345 my $file = shift;
2346
2347 if (($anon_struct_union == 1) && ($type eq "") &&
2348 ($param eq "}")) {
2349 return; # ignore the ending }; from anon. struct/union
2350 }
2351
2352 $anon_struct_union = 0;
2353 my $param_name = $param;
2354 $param_name =~ s/\[.*//;
2355
2356 if ($type eq "" && $param =~ /\.\.\.$/)
2357 {
2358 if (!$param =~ /\w\.\.\.$/) {
2359 # handles unnamed variable parameters
2360 $param = "...";
2361 }
2362 if (!defined $parameterdescs{$param} || $parameterdescs{$param} eq "") {
2363 $parameterdescs{$param} = "variable arguments";
2364 }
2365 }
2366 elsif ($type eq "" && ($param eq "" or $param eq "void"))
2367 {
2368 $param="void";
2369 $parameterdescs{void} = "no arguments";
2370 }
2371 elsif ($type eq "" && ($param eq "struct" or $param eq "union"))
2372 # handle unnamed (anonymous) union or struct:
2373 {
2374 $type = $param;
2375 $param = "{unnamed_" . $param . "}";
2376 $parameterdescs{$param} = "anonymous\n";
2377 $anon_struct_union = 1;
2378 }
2379
2380 # warn if parameter has no description
2381 # (but ignore ones starting with # as these are not parameters
2382 # but inline preprocessor statements);
2383 # also ignore unnamed structs/unions;
2384 if (!$anon_struct_union) {
2385 if (!defined $parameterdescs{$param_name} && $param_name !~ /^#/) {
2386
2387 $parameterdescs{$param_name} = $undescribed;
2388
2389 if (($type eq 'function') || ($type eq 'enum')) {
2390 print STDERR "${file}:$.: warning: Function parameter ".
2391 "or member '$param' not " .
2392 "described in '$declaration_name'\n";
2393 }
2394 print STDERR "${file}:$.: warning:" .
2395 " No description found for parameter '$param'\n";
2396 ++$warnings;
2397 }
2398 }
2399
2400 $param = xml_escape($param);
2401
2402 # strip spaces from $param so that it is one continuous string
2403 # on @parameterlist;
2404 # this fixes a problem where check_sections() cannot find
2405 # a parameter like "addr[6 + 2]" because it actually appears
2406 # as "addr[6", "+", "2]" on the parameter list;
2407 # but it's better to maintain the param string unchanged for output,
2408 # so just weaken the string compare in check_sections() to ignore
2409 # "[blah" in a parameter string;
2410 ###$param =~ s/\s*//g;
2411 push @parameterlist, $param;
2412 $parametertypes{$param} = $type;
2413}
2414
2415sub check_sections($$$$$$) {
2416 my ($file, $decl_name, $decl_type, $sectcheck, $prmscheck, $nested) = @_;
2417 my @sects = split ' ', $sectcheck;
2418 my @prms = split ' ', $prmscheck;
2419 my $err;
2420 my ($px, $sx);
2421 my $prm_clean; # strip trailing "[array size]" and/or beginning "*"
2422
2423 foreach $sx (0 .. $#sects) {
2424 $err = 1;
2425 foreach $px (0 .. $#prms) {
2426 $prm_clean = $prms[$px];
2427 $prm_clean =~ s/\[.*\]//;
2428 $prm_clean =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
2429 # ignore array size in a parameter string;
2430 # however, the original param string may contain
2431 # spaces, e.g.: addr[6 + 2]
2432 # and this appears in @prms as "addr[6" since the
2433 # parameter list is split at spaces;
2434 # hence just ignore "[..." for the sections check;
2435 $prm_clean =~ s/\[.*//;
2436
2437 ##$prm_clean =~ s/^\**//;
2438 if ($prm_clean eq $sects[$sx]) {
2439 $err = 0;
2440 last;
2441 }
2442 }
2443 if ($err) {
2444 if ($decl_type eq "function") {
2445 print STDERR "${file}:$.: warning: " .
2446 "Excess function parameter " .
2447 "'$sects[$sx]' " .
2448 "description in '$decl_name'\n";
2449 ++$warnings;
2450 } else {
2451 if ($nested !~ m/\Q$sects[$sx]\E/) {
2452 print STDERR "${file}:$.: warning: " .
2453 "Excess struct/union/enum/typedef member " .
2454 "'$sects[$sx]' " .
2455 "description in '$decl_name'\n";
2456 ++$warnings;
2457 }
2458 }
2459 }
2460 }
2461}
2462
2463##
2464# Checks the section describing the return value of a function.
2465sub check_return_section {
2466 my $file = shift;
2467 my $declaration_name = shift;
2468 my $return_type = shift;
2469
2470 # Ignore an empty return type (It's a macro)
2471 # Ignore functions with a "void" return type. (But don't ignore "void *")
2472 if (($return_type eq "") || ($return_type =~ /void\s*\w*\s*$/)) {
2473 return;
2474 }
2475
2476 if (!defined($sections{$section_return}) ||
2477 $sections{$section_return} eq "") {
2478 print STDERR "${file}:$.: warning: " .
2479 "No description found for return value of " .
2480 "'$declaration_name'\n";
2481 ++$warnings;
2482 }
2483}
2484
2485##
2486# takes a function prototype and the name of the current file being
2487# processed and spits out all the details stored in the global
2488# arrays/hashes.
2489sub dump_function($$) {
2490 my $prototype = shift;
2491 my $file = shift;
2492 my $noret = 0;
2493
2494 $prototype =~ s/^static +//;
2495 $prototype =~ s/^extern +//;
2496 $prototype =~ s/^asmlinkage +//;
2497 $prototype =~ s/^inline +//;
2498 $prototype =~ s/^__inline__ +//;
2499 $prototype =~ s/^__inline +//;
2500 $prototype =~ s/^__always_inline +//;
2501 $prototype =~ s/^noinline +//;
2502 $prototype =~ s/__init +//;
2503 $prototype =~ s/__init_or_module +//;
2504 $prototype =~ s/__meminit +//;
2505 $prototype =~ s/__must_check +//;
2506 $prototype =~ s/__weak +//;
2507 my $define = $prototype =~ s/^#\s*define\s+//; #ak added
2508 $prototype =~ s/__attribute__\s*\(\([a-z,]*\)\)//;
2509
2510 # Yes, this truly is vile. We are looking for:
2511 # 1. Return type (may be nothing if we're looking at a macro)
2512 # 2. Function name
2513 # 3. Function parameters.
2514 #
2515 # All the while we have to watch out for function pointer parameters
2516 # (which IIRC is what the two sections are for), C types (these
2517 # regexps don't even start to express all the possibilities), and
2518 # so on.
2519 #
2520 # If you mess with these regexps, it's a good idea to check that
2521 # the following functions' documentation still comes out right:
2522 # - parport_register_device (function pointer parameters)
2523 # - atomic_set (macro)
2524 # - pci_match_device, __copy_to_user (long return type)
2525
2526 if ($define && $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s+/) {
2527 # This is an object-like macro, it has no return type and no parameter
2528 # list.
2529 # Function-like macros are not allowed to have spaces between
2530 # declaration_name and opening parenthesis (notice the \s+).
2531 $return_type = $1;
2532 $declaration_name = $2;
2533 $noret = 1;
2534 } elsif ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2535 $prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2536 $prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2537 $prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2538 $prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2539 $prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2540 $prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
2541 $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2542 $prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2543 $prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2544 $prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2545 $prototype =~ m/^(\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2546 $prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2547 $prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2548 $prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2549 $prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
2550 $prototype =~ m/^(\w+\s+\w+\s*\*\s*\w+\s*\*\s*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/) {
2551 $return_type = $1;
2552 $declaration_name = $2;
2553 my $args = $3;
2554
2555 create_parameterlist($args, ',', $file);
2556 } else {
2557 print STDERR "${file}:$.: warning: cannot understand function prototype: '$prototype'\n";
2558 return;
2559 }
2560
2561 my $prms = join " ", @parameterlist;
2562 check_sections($file, $declaration_name, "function", $sectcheck, $prms, "");
2563
2564 # This check emits a lot of warnings at the moment, because many
2565 # functions don't have a 'Return' doc section. So until the number
2566 # of warnings goes sufficiently down, the check is only performed in
2567 # verbose mode.
2568 # TODO: always perform the check.
2569 if ($verbose && !$noret) {
2570 check_return_section($file, $declaration_name, $return_type);
2571 }
2572
2573 output_declaration($declaration_name,
2574 'function',
2575 {'function' => $declaration_name,
2576 'module' => $modulename,
2577 'functiontype' => $return_type,
2578 'parameterlist' => \@parameterlist,
2579 'parameterdescs' => \%parameterdescs,
2580 'parametertypes' => \%parametertypes,
2581 'sectionlist' => \@sectionlist,
2582 'sections' => \%sections,
2583 'purpose' => $declaration_purpose
2584 });
2585}
2586
2587sub reset_state {
2588 $function = "";
2589 %parameterdescs = ();
2590 %parametertypes = ();
2591 @parameterlist = ();
2592 %sections = ();
2593 @sectionlist = ();
2594 $sectcheck = "";
2595 $struct_actual = "";
2596 $prototype = "";
2597
2598 $state = STATE_NORMAL;
2599 $inline_doc_state = STATE_INLINE_NA;
2600}
2601
2602sub tracepoint_munge($) {
2603 my $file = shift;
2604 my $tracepointname = 0;
2605 my $tracepointargs = 0;
2606
2607 if ($prototype =~ m/TRACE_EVENT\((.*?),/) {
2608 $tracepointname = $1;
2609 }
2610 if ($prototype =~ m/DEFINE_SINGLE_EVENT\((.*?),/) {
2611 $tracepointname = $1;
2612 }
2613 if ($prototype =~ m/DEFINE_EVENT\((.*?),(.*?),/) {
2614 $tracepointname = $2;
2615 }
2616 $tracepointname =~ s/^\s+//; #strip leading whitespace
2617 if ($prototype =~ m/TP_PROTO\((.*?)\)/) {
2618 $tracepointargs = $1;
2619 }
2620 if (($tracepointname eq 0) || ($tracepointargs eq 0)) {
2621 print STDERR "${file}:$.: warning: Unrecognized tracepoint format: \n".
2622 "$prototype\n";
2623 } else {
2624 $prototype = "static inline void trace_$tracepointname($tracepointargs)";
2625 }
2626}
2627
2628sub syscall_munge() {
2629 my $void = 0;
2630
2631 $prototype =~ s@[\r\n\t]+@ @gos; # strip newlines/CR's/tabs
2632## if ($prototype =~ m/SYSCALL_DEFINE0\s*\(\s*(a-zA-Z0-9_)*\s*\)/) {
2633 if ($prototype =~ m/SYSCALL_DEFINE0/) {
2634 $void = 1;
2635## $prototype = "long sys_$1(void)";
2636 }
2637
2638 $prototype =~ s/SYSCALL_DEFINE.*\(/long sys_/; # fix return type & func name
2639 if ($prototype =~ m/long (sys_.*?),/) {
2640 $prototype =~ s/,/\(/;
2641 } elsif ($void) {
2642 $prototype =~ s/\)/\(void\)/;
2643 }
2644
2645 # now delete all of the odd-number commas in $prototype
2646 # so that arg types & arg names don't have a comma between them
2647 my $count = 0;
2648 my $len = length($prototype);
2649 if ($void) {
2650 $len = 0; # skip the for-loop
2651 }
2652 for (my $ix = 0; $ix < $len; $ix++) {
2653 if (substr($prototype, $ix, 1) eq ',') {
2654 $count++;
2655 if ($count % 2 == 1) {
2656 substr($prototype, $ix, 1) = ' ';
2657 }
2658 }
2659 }
2660}
2661
2662sub process_proto_function($$) {
2663 my $x = shift;
2664 my $file = shift;
2665
2666 $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
2667
2668 if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#\s*define/)) {
2669 # do nothing
2670 }
2671 elsif ($x =~ /([^\{]*)/) {
2672 $prototype .= $1;
2673 }
2674
2675 if (($x =~ /\{/) || ($x =~ /\#\s*define/) || ($x =~ /;/)) {
2676 $prototype =~ s@/\*.*?\*/@@gos; # strip comments.
2677 $prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
2678 $prototype =~ s@^\s+@@gos; # strip leading spaces
2679 if ($prototype =~ /SYSCALL_DEFINE/) {
2680 syscall_munge();
2681 }
2682 if ($prototype =~ /TRACE_EVENT/ || $prototype =~ /DEFINE_EVENT/ ||
2683 $prototype =~ /DEFINE_SINGLE_EVENT/)
2684 {
2685 tracepoint_munge($file);
2686 }
2687 dump_function($prototype, $file);
2688 reset_state();
2689 }
2690}
2691
2692sub process_proto_type($$) {
2693 my $x = shift;
2694 my $file = shift;
2695
2696 $x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
2697 $x =~ s@^\s+@@gos; # strip leading spaces
2698 $x =~ s@\s+$@@gos; # strip trailing spaces
2699 $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
2700
2701 if ($x =~ /^#/) {
2702 # To distinguish preprocessor directive from regular declaration later.
2703 $x .= ";";
2704 }
2705
2706 while (1) {
2707 if ( $x =~ /([^{};]*)([{};])(.*)/ ) {
2708 $prototype .= $1 . $2;
2709 ($2 eq '{') && $brcount++;
2710 ($2 eq '}') && $brcount--;
2711 if (($2 eq ';') && ($brcount == 0)) {
2712 dump_declaration($prototype, $file);
2713 reset_state();
2714 last;
2715 }
2716 $x = $3;
2717 } else {
2718 $prototype .= $x;
2719 last;
2720 }
2721 }
2722}
2723
2724# xml_escape: replace <, >, and & in the text stream;
2725#
2726# however, formatting controls that are generated internally/locally in the
2727# kernel-doc script are not escaped here; instead, they begin life like
2728# $blankline_html (4 of '\' followed by a mnemonic + ':'), then these strings
2729# are converted to their mnemonic-expected output, without the 4 * '\' & ':',
2730# just before actual output; (this is done by local_unescape())
2731sub xml_escape($) {
2732 my $text = shift;
2733 if (($output_mode eq "text") || ($output_mode eq "man")) {
2734 return $text;
2735 }
2736 $text =~ s/\&/\\\\\\amp;/g;
2737 $text =~ s/\</\\\\\\lt;/g;
2738 $text =~ s/\>/\\\\\\gt;/g;
2739 return $text;
2740}
2741
2742# xml_unescape: reverse the effects of xml_escape
2743sub xml_unescape($) {
2744 my $text = shift;
2745 if (($output_mode eq "text") || ($output_mode eq "man")) {
2746 return $text;
2747 }
2748 $text =~ s/\\\\\\amp;/\&/g;
2749 $text =~ s/\\\\\\lt;/</g;
2750 $text =~ s/\\\\\\gt;/>/g;
2751 return $text;
2752}
2753
2754# convert local escape strings to html
2755# local escape strings look like: '\\\\menmonic:' (that's 4 backslashes)
2756sub local_unescape($) {
2757 my $text = shift;
2758 if (($output_mode eq "text") || ($output_mode eq "man")) {
2759 return $text;
2760 }
2761 $text =~ s/\\\\\\\\lt:/</g;
2762 $text =~ s/\\\\\\\\gt:/>/g;
2763 return $text;
2764}
2765
2766sub map_filename($) {
2767 my $file;
2768 my ($orig_file) = @_;
2769
2770 if (defined($ENV{'SRCTREE'})) {
2771 $file = "$ENV{'SRCTREE'}" . "/" . $orig_file;
2772 } else {
2773 $file = $orig_file;
2774 }
2775
2776 if (defined($source_map{$file})) {
2777 $file = $source_map{$file};
2778 }
2779
2780 return $file;
2781}
2782
2783sub process_export_file($) {
2784 my ($orig_file) = @_;
2785 my $file = map_filename($orig_file);
2786
2787 if (!open(IN,"<$file")) {
2788 print STDERR "Error: Cannot open file $file\n";
2789 ++$errors;
2790 return;
2791 }
2792
2793 while (<IN>) {
2794 if (/$export_symbol/) {
2795 $function_table{$2} = 1;
2796 }
2797 }
2798
2799 close(IN);
2800}
2801
2802sub process_file($) {
2803 my $file;
2804 my $identifier;
2805 my $func;
2806 my $descr;
2807 my $in_purpose = 0;
2808 my $initial_section_counter = $section_counter;
2809 my ($orig_file) = @_;
2810 my $leading_space;
2811
2812 $file = map_filename($orig_file);
2813
2814 if (!open(IN,"<$file")) {
2815 print STDERR "Error: Cannot open file $file\n";
2816 ++$errors;
2817 return;
2818 }
2819
2820 $. = 1;
2821
2822 $section_counter = 0;
2823 while (<IN>) {
2824 while (s/\\\s*$//) {
2825 $_ .= <IN>;
2826 }
2827 if ($state == STATE_NORMAL) {
2828 if (/$doc_start/o) {
2829 $state = STATE_NAME; # next line is always the function name
2830 $in_doc_sect = 0;
2831 $declaration_start_line = $. + 1;
2832 }
2833 } elsif ($state == STATE_NAME) {# this line is the function name (always)
2834 if (/$doc_block/o) {
2835 $state = STATE_DOCBLOCK;
2836 $contents = "";
2837 $new_start_line = $. + 1;
2838
2839 if ( $1 eq "" ) {
2840 $section = $section_intro;
2841 } else {
2842 $section = $1;
2843 }
2844 }
2845 elsif (/$doc_decl/o) {
2846 $identifier = $1;
2847 if (/\s*([\w\s]+?)\s*-/) {
2848 $identifier = $1;
2849 }
2850
2851 $state = STATE_FIELD;
2852 # if there's no @param blocks need to set up default section
2853 # here
2854 $contents = "";
2855 $section = $section_default;
2856 $new_start_line = $. + 1;
2857 if (/-(.*)/) {
2858 # strip leading/trailing/multiple spaces
2859 $descr= $1;
2860 $descr =~ s/^\s*//;
2861 $descr =~ s/\s*$//;
2862 $descr =~ s/\s+/ /g;
2863 $declaration_purpose = xml_escape($descr);
2864 $in_purpose = 1;
2865 } else {
2866 $declaration_purpose = "";
2867 }
2868
2869 if (($declaration_purpose eq "") && $verbose) {
2870 print STDERR "${file}:$.: warning: missing initial short description on line:\n";
2871 print STDERR $_;
2872 ++$warnings;
2873 }
2874
2875 if ($identifier =~ m/^struct/) {
2876 $decl_type = 'struct';
2877 } elsif ($identifier =~ m/^union/) {
2878 $decl_type = 'union';
2879 } elsif ($identifier =~ m/^enum/) {
2880 $decl_type = 'enum';
2881 } elsif ($identifier =~ m/^typedef/) {
2882 $decl_type = 'typedef';
2883 } else {
2884 $decl_type = 'function';
2885 }
2886
2887 if ($verbose) {
2888 print STDERR "${file}:$.: info: Scanning doc for $identifier\n";
2889 }
2890 } else {
2891 print STDERR "${file}:$.: warning: Cannot understand $_ on line $.",
2892 " - I thought it was a doc line\n";
2893 ++$warnings;
2894 $state = STATE_NORMAL;
2895 }
2896 } elsif ($state == STATE_FIELD) { # look for head: lines, and include content
2897 if (/$doc_sect/i) { # case insensitive for supported section names
2898 $newsection = $1;
2899 $newcontents = $2;
2900
2901 # map the supported section names to the canonical names
2902 if ($newsection =~ m/^description$/i) {
2903 $newsection = $section_default;
2904 } elsif ($newsection =~ m/^context$/i) {
2905 $newsection = $section_context;
2906 } elsif ($newsection =~ m/^returns?$/i) {
2907 $newsection = $section_return;
2908 } elsif ($newsection =~ m/^\@return$/) {
2909 # special: @return is a section, not a param description
2910 $newsection = $section_return;
2911 }
2912
2913 if (($contents ne "") && ($contents ne "\n")) {
2914 if (!$in_doc_sect && $verbose) {
2915 print STDERR "${file}:$.: warning: contents before sections\n";
2916 ++$warnings;
2917 }
2918 dump_section($file, $section, xml_escape($contents));
2919 $section = $section_default;
2920 }
2921
2922 $in_doc_sect = 1;
2923 $in_purpose = 0;
2924 $contents = $newcontents;
2925 $new_start_line = $.;
2926 while ((substr($contents, 0, 1) eq " ") ||
2927 substr($contents, 0, 1) eq "\t") {
2928 $contents = substr($contents, 1);
2929 }
2930 if ($contents ne "") {
2931 $contents .= "\n";
2932 }
2933 $section = $newsection;
2934 $leading_space = undef;
2935 } elsif (/$doc_end/) {
2936 if (($contents ne "") && ($contents ne "\n")) {
2937 dump_section($file, $section, xml_escape($contents));
2938 $section = $section_default;
2939 $contents = "";
2940 }
2941 # look for doc_com + <text> + doc_end:
2942 if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
2943 print STDERR "${file}:$.: warning: suspicious ending line: $_";
2944 ++$warnings;
2945 }
2946
2947 $prototype = "";
2948 $state = STATE_PROTO;
2949 $brcount = 0;
2950# print STDERR "end of doc comment, looking for prototype\n";
2951 } elsif (/$doc_content/) {
2952 # miguel-style comment kludge, look for blank lines after
2953 # @parameter line to signify start of description
2954 if ($1 eq "") {
2955 if ($section =~ m/^@/ || $section eq $section_context) {
2956 dump_section($file, $section, xml_escape($contents));
2957 $section = $section_default;
2958 $contents = "";
2959 $new_start_line = $.;
2960 } else {
2961 $contents .= "\n";
2962 }
2963 $in_purpose = 0;
2964 } elsif ($in_purpose == 1) {
2965 # Continued declaration purpose
2966 chomp($declaration_purpose);
2967 $declaration_purpose .= " " . xml_escape($1);
2968 $declaration_purpose =~ s/\s+/ /g;
2969 } else {
2970 my $cont = $1;
2971 if ($section =~ m/^@/ || $section eq $section_context) {
2972 if (!defined $leading_space) {
2973 if ($cont =~ m/^(\s+)/) {
2974 $leading_space = $1;
2975 } else {
2976 $leading_space = "";
2977 }
2978 }
2979
2980 $cont =~ s/^$leading_space//;
2981 }
2982 $contents .= $cont . "\n";
2983 }
2984 } else {
2985 # i dont know - bad line? ignore.
2986 print STDERR "${file}:$.: warning: bad line: $_";
2987 ++$warnings;
2988 }
2989 } elsif ($state == STATE_INLINE) { # scanning for inline parameters
2990 # First line (state 1) needs to be a @parameter
2991 if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
2992 $section = $1;
2993 $contents = $2;
2994 $new_start_line = $.;
2995 if ($contents ne "") {
2996 while ((substr($contents, 0, 1) eq " ") ||
2997 substr($contents, 0, 1) eq "\t") {
2998 $contents = substr($contents, 1);
2999 }
3000 $contents .= "\n";
3001 }
3002 $inline_doc_state = STATE_INLINE_TEXT;
3003 # Documentation block end */
3004 } elsif (/$doc_inline_end/) {
3005 if (($contents ne "") && ($contents ne "\n")) {
3006 dump_section($file, $section, xml_escape($contents));
3007 $section = $section_default;
3008 $contents = "";
3009 }
3010 $state = STATE_PROTO;
3011 $inline_doc_state = STATE_INLINE_NA;
3012 # Regular text
3013 } elsif (/$doc_content/) {
3014 if ($inline_doc_state == STATE_INLINE_TEXT) {
3015 $contents .= $1 . "\n";
3016 # nuke leading blank lines
3017 if ($contents =~ /^\s*$/) {
3018 $contents = "";
3019 }
3020 } elsif ($inline_doc_state == STATE_INLINE_NAME) {
3021 $inline_doc_state = STATE_INLINE_ERROR;
3022 print STDERR "${file}:$.: warning: ";
3023 print STDERR "Incorrect use of kernel-doc format: $_";
3024 ++$warnings;
3025 }
3026 }
3027 } elsif ($state == STATE_PROTO) { # scanning for function '{' (end of prototype)
3028 if (/$doc_inline_oneline/) {
3029 $section = $1;
3030 $contents = $2;
3031 if ($contents ne "") {
3032 $contents .= "\n";
3033 dump_section($file, $section, xml_escape($contents));
3034 $section = $section_default;
3035 $contents = "";
3036 }
3037 } elsif (/$doc_inline_start/) {
3038 $state = STATE_INLINE;
3039 $inline_doc_state = STATE_INLINE_NAME;
3040 } elsif ($decl_type eq 'function') {
3041 process_proto_function($_, $file);
3042 } else {
3043 process_proto_type($_, $file);
3044 }
3045 } elsif ($state == STATE_DOCBLOCK) {
3046 if (/$doc_end/)
3047 {
3048 dump_doc_section($file, $section, xml_escape($contents));
3049 $section = $section_default;
3050 $contents = "";
3051 $function = "";
3052 %parameterdescs = ();
3053 %parametertypes = ();
3054 @parameterlist = ();
3055 %sections = ();
3056 @sectionlist = ();
3057 $prototype = "";
3058 $state = STATE_NORMAL;
3059 }
3060 elsif (/$doc_content/)
3061 {
3062 if ( $1 eq "" )
3063 {
3064 $contents .= $blankline;
3065 }
3066 else
3067 {
3068 $contents .= $1 . "\n";
3069 }
3070 }
3071 }
3072 }
3073 if ($initial_section_counter == $section_counter) {
3074 print STDERR "${file}:1: warning: no structured comments found\n";
3075 if (($output_selection == OUTPUT_INCLUDE) && ($show_not_found == 1)) {
3076 print STDERR " Was looking for '$_'.\n" for keys %function_table;
3077 }
3078 if ($output_mode eq "xml") {
3079 # The template wants at least one RefEntry here; make one.
3080 print "<refentry>\n";
3081 print " <refnamediv>\n";
3082 print " <refname>\n";
3083 print " ${orig_file}\n";
3084 print " </refname>\n";
3085 print " <refpurpose>\n";
3086 print " Document generation inconsistency\n";
3087 print " </refpurpose>\n";
3088 print " </refnamediv>\n";
3089 print " <refsect1>\n";
3090 print " <title>\n";
3091 print " Oops\n";
3092 print " </title>\n";
3093 print " <warning>\n";
3094 print " <para>\n";
3095 print " The template for this document tried to insert\n";
3096 print " the structured comment from the file\n";
3097 print " <filename>${orig_file}</filename> at this point,\n";
3098 print " but none was found.\n";
3099 print " This dummy section is inserted to allow\n";
3100 print " generation to continue.\n";
3101 print " </para>\n";
3102 print " </warning>\n";
3103 print " </refsect1>\n";
3104 print "</refentry>\n";
3105 }
3106 }
3107}
3108
3109
3110$kernelversion = get_kernel_version();
3111
3112# generate a sequence of code that will splice in highlighting information
3113# using the s// operator.
3114for (my $k = 0; $k < @highlights; $k++) {
3115 my $pattern = $highlights[$k][0];
3116 my $result = $highlights[$k][1];
3117# print STDERR "scanning pattern:$pattern, highlight:($result)\n";
3118 $dohighlight .= "\$contents =~ s:$pattern:$result:gs;\n";
3119}
3120
3121# Read the file that maps relative names to absolute names for
3122# separate source and object directories and for shadow trees.
3123if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
3124 my ($relname, $absname);
3125 while(<SOURCE_MAP>) {
3126 chop();
3127 ($relname, $absname) = (split())[0..1];
3128 $relname =~ s:^/+::;
3129 $source_map{$relname} = $absname;
3130 }
3131 close(SOURCE_MAP);
3132}
3133
3134if ($output_selection == OUTPUT_EXPORTED ||
3135 $output_selection == OUTPUT_INTERNAL) {
3136
3137 push(@export_file_list, @ARGV);
3138
3139 foreach (@export_file_list) {
3140 chomp;
3141 process_export_file($_);
3142 }
3143}
3144
3145foreach (@ARGV) {
3146 chomp;
3147 process_file($_);
3148}
3149if ($verbose && $errors) {
3150 print STDERR "$errors errors\n";
3151}
3152if ($verbose && $warnings) {
3153 print STDERR "$warnings warnings\n";
3154}
3155
3156exit($errors);