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	 da3ecf00ff
			
		
	
	
		da3ecf00ff
		
	
	
	
	
		
			
			John wrote: > kernel-doc gets confused by code like the following: > > /** > * define HOMA_MIN_DEFAULT_PORT - The 16-bit port space is divided into > * two nonoverlapping regions. Ports 1-32767 are reserved exclusively > * for well-defined server ports. The remaining ports are used for client > * ports; these are allocated automatically by Homa. Port 0 is reserved. > */ > #define HOMA_MIN_DEFAULT_PORT 0x8000 > > It seems to use the last "-" on the line (the one in "16-bit") rather > than the first one, so it produces the following false error message: > > homa.h:50: warning: expecting prototype for HOMA_MIN_DEFAULT_PORT - > The 16(). Prototype was for HOMA_MIN_DEFAULT_PORT() instead > > There are similar problems if there is a ":" later on the line. The problem is the regex for the identifier, which is a greedy /.*/ that matches everything up to the last - or : (i.e. $decl_end). Fix it by tightening up this regex and not matching those characters as part of the identifier. Link: https://lore.kernel.org/all/CAGXJAmzfRzE=A94NT5ETtj3bZc-=2oLg-9E5Kjh4o_-iuw1q8g@mail.gmail.com/ Reported-by: John Ousterhout <ouster@cs.stanford.edu> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20241221222214.1969823-1-vegard.nossum@oracle.com
		
			
				
	
	
		
			2560 lines
		
	
	
	
		
			78 KiB
		
	
	
	
		
			Perl
		
	
	
		
			Executable file
		
	
	
	
	
			
		
		
	
	
			2560 lines
		
	
	
	
		
			78 KiB
		
	
	
	
		
			Perl
		
	
	
		
			Executable file
		
	
	
	
	
| #!/usr/bin/env perl
 | |
| # SPDX-License-Identifier: GPL-2.0
 | |
| # vim: softtabstop=4
 | |
| 
 | |
| use warnings;
 | |
| use strict;
 | |
| 
 | |
| ## Copyright (c) 1998 Michael Zucchi, All Rights Reserved        ##
 | |
| ## Copyright (C) 2000, 1  Tim Waugh <twaugh@redhat.com>          ##
 | |
| ## Copyright (C) 2001  Simon Huggins                             ##
 | |
| ## Copyright (C) 2005-2012  Randy Dunlap                         ##
 | |
| ## Copyright (C) 2012  Dan Luedtke                               ##
 | |
| ## 								 ##
 | |
| ## #define enhancements by Armin Kuster <akuster@mvista.com>	 ##
 | |
| ## Copyright (c) 2000 MontaVista Software, Inc.			 ##
 | |
| #
 | |
| # Copyright (C) 2022 Tomasz Warniełło (POD)
 | |
| 
 | |
| use Pod::Usage qw/pod2usage/;
 | |
| 
 | |
| =head1 NAME
 | |
| 
 | |
| kernel-doc - Print formatted kernel documentation to stdout
 | |
| 
 | |
| =head1 SYNOPSIS
 | |
| 
 | |
|  kernel-doc [-h] [-v] [-Werror] [-Wall] [-Wreturn] [-Wshort-desc[ription]] [-Wcontents-before-sections]
 | |
|    [ -man |
 | |
|      -rst [-sphinx-version VERSION] [-enable-lineno] |
 | |
|      -none
 | |
|    ]
 | |
|    [
 | |
|      -export |
 | |
|      -internal |
 | |
|      [-function NAME] ... |
 | |
|      [-nosymbol NAME] ...
 | |
|    ]
 | |
|    [-no-doc-sections]
 | |
|    [-export-file FILE] ...
 | |
|    FILE ...
 | |
| 
 | |
| Run `kernel-doc -h` for details.
 | |
| 
 | |
| =head1 DESCRIPTION
 | |
| 
 | |
| Read C language source or header FILEs, extract embedded documentation comments,
 | |
| and print formatted documentation to standard output.
 | |
| 
 | |
| The documentation comments are identified by the "/**" opening comment mark.
 | |
| 
 | |
| See Documentation/doc-guide/kernel-doc.rst for the documentation comment syntax.
 | |
| 
 | |
| =cut
 | |
| 
 | |
| # more perldoc at the end of the file
 | |
| 
 | |
| ## init lots of data
 | |
| 
 | |
| my $errors = 0;
 | |
| my $warnings = 0;
 | |
| my $anon_struct_union = 0;
 | |
| 
 | |
| # match expressions used to find embedded type information
 | |
| my $type_constant = '\b``([^\`]+)``\b';
 | |
| my $type_constant2 = '\%([-_*\w]+)';
 | |
| my $type_func = '(\w+)\(\)';
 | |
| my $type_param = '\@(\w*((\.\w+)|(->\w+))*(\.\.\.)?)';
 | |
| my $type_param_ref = '([\!~\*]?)\@(\w*((\.\w+)|(->\w+))*(\.\.\.)?)';
 | |
| my $type_fp_param = '\@(\w+)\(\)';  # Special RST handling for func ptr params
 | |
| my $type_fp_param2 = '\@(\w+->\S+)\(\)';  # Special RST handling for structs with func ptr params
 | |
| my $type_env = '(\$\w+)';
 | |
| my $type_enum = '\&(enum\s*([_\w]+))';
 | |
| my $type_struct = '\&(struct\s*([_\w]+))';
 | |
| my $type_typedef = '\&(typedef\s*([_\w]+))';
 | |
| my $type_union = '\&(union\s*([_\w]+))';
 | |
| my $type_member = '\&([_\w]+)(\.|->)([_\w]+)';
 | |
| my $type_fallback = '\&([_\w]+)';
 | |
| my $type_member_func = $type_member . '\(\)';
 | |
| 
 | |
| # Output conversion substitutions.
 | |
| #  One for each output format
 | |
| 
 | |
| # these are pretty rough
 | |
| my @highlights_man = (
 | |
|     [$type_constant, "\$1"],
 | |
|     [$type_constant2, "\$1"],
 | |
|     [$type_func, "\\\\fB\$1\\\\fP"],
 | |
|     [$type_enum, "\\\\fI\$1\\\\fP"],
 | |
|     [$type_struct, "\\\\fI\$1\\\\fP"],
 | |
|     [$type_typedef, "\\\\fI\$1\\\\fP"],
 | |
|     [$type_union, "\\\\fI\$1\\\\fP"],
 | |
|     [$type_param, "\\\\fI\$1\\\\fP"],
 | |
|     [$type_param_ref, "\\\\fI\$1\$2\\\\fP"],
 | |
|     [$type_member, "\\\\fI\$1\$2\$3\\\\fP"],
 | |
|     [$type_fallback, "\\\\fI\$1\\\\fP"]
 | |
|   );
 | |
| my $blankline_man = "";
 | |
| 
 | |
| # rst-mode
 | |
| my @highlights_rst = (
 | |
|     [$type_constant, "``\$1``"],
 | |
|     [$type_constant2, "``\$1``"],
 | |
| 
 | |
|     # Note: need to escape () to avoid func matching later
 | |
|     [$type_member_func, "\\:c\\:type\\:`\$1\$2\$3\\\\(\\\\) <\$1>`"],
 | |
|     [$type_member, "\\:c\\:type\\:`\$1\$2\$3 <\$1>`"],
 | |
|     [$type_fp_param, "**\$1\\\\(\\\\)**"],
 | |
|     [$type_fp_param2, "**\$1\\\\(\\\\)**"],
 | |
|     [$type_func, "\$1()"],
 | |
|     [$type_enum, "\\:c\\:type\\:`\$1 <\$2>`"],
 | |
|     [$type_struct, "\\:c\\:type\\:`\$1 <\$2>`"],
 | |
|     [$type_typedef, "\\:c\\:type\\:`\$1 <\$2>`"],
 | |
|     [$type_union, "\\:c\\:type\\:`\$1 <\$2>`"],
 | |
| 
 | |
|     # in rst this can refer to any type
 | |
|     [$type_fallback, "\\:c\\:type\\:`\$1`"],
 | |
|     [$type_param_ref, "**\$1\$2**"]
 | |
|   );
 | |
| my $blankline_rst = "\n";
 | |
| 
 | |
| # read arguments
 | |
| if ($#ARGV == -1) {
 | |
|     pod2usage(
 | |
|         -message => "No arguments!\n",
 | |
|         -exitval => 1,
 | |
|         -verbose => 99,
 | |
|         -sections => 'SYNOPSIS',
 | |
|         -output => \*STDERR,
 | |
|       );
 | |
| }
 | |
| 
 | |
| my $kernelversion;
 | |
| my ($sphinx_major, $sphinx_minor, $sphinx_patch);
 | |
| 
 | |
| my $dohighlight = "";
 | |
| 
 | |
| my $verbose = 0;
 | |
| my $Werror = 0;
 | |
| my $Wreturn = 0;
 | |
| my $Wshort_desc = 0;
 | |
| my $Wcontents_before_sections = 0;
 | |
| my $output_mode = "rst";
 | |
| my $output_preformatted = 0;
 | |
| my $no_doc_sections = 0;
 | |
| my $enable_lineno = 0;
 | |
| my @highlights = @highlights_rst;
 | |
| my $blankline = $blankline_rst;
 | |
| my $modulename = "Kernel API";
 | |
| 
 | |
| use constant {
 | |
|     OUTPUT_ALL          => 0, # output all symbols and doc sections
 | |
|     OUTPUT_INCLUDE      => 1, # output only specified symbols
 | |
|     OUTPUT_EXPORTED     => 2, # output exported symbols
 | |
|     OUTPUT_INTERNAL     => 3, # output non-exported symbols
 | |
| };
 | |
| my $output_selection = OUTPUT_ALL;
 | |
| my $show_not_found = 0;	# No longer used
 | |
| 
 | |
| my @export_file_list;
 | |
| 
 | |
| my @build_time;
 | |
| if (defined($ENV{'KBUILD_BUILD_TIMESTAMP'}) &&
 | |
|     (my $seconds = `date -d "${ENV{'KBUILD_BUILD_TIMESTAMP'}}" +%s`) ne '') {
 | |
|     @build_time = gmtime($seconds);
 | |
| } else {
 | |
|     @build_time = localtime;
 | |
| }
 | |
| 
 | |
| my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
 | |
|                 'July', 'August', 'September', 'October',
 | |
|                 'November', 'December')[$build_time[4]] .
 | |
|     " " . ($build_time[5]+1900);
 | |
| 
 | |
| # Essentially these are globals.
 | |
| # They probably want to be tidied up, made more localised or something.
 | |
| # CAVEAT EMPTOR!  Some of the others I localised may not want to be, which
 | |
| # could cause "use of undefined value" or other bugs.
 | |
| my ($function, %function_table, %parametertypes, $declaration_purpose);
 | |
| my %nosymbol_table = ();
 | |
| my $declaration_start_line;
 | |
| my ($type, $declaration_name, $return_type);
 | |
| my ($newsection, $newcontents, $prototype, $brcount, %source_map);
 | |
| 
 | |
| if (defined($ENV{'KBUILD_VERBOSE'}) && $ENV{'KBUILD_VERBOSE'} =~ '1') {
 | |
|     $verbose = 1;
 | |
| }
 | |
| 
 | |
| if (defined($ENV{'KCFLAGS'})) {
 | |
|     my $kcflags = "$ENV{'KCFLAGS'}";
 | |
| 
 | |
|     if ($kcflags =~ /(\s|^)-Werror(\s|$)/) {
 | |
|         $Werror = 1;
 | |
|     }
 | |
| }
 | |
| 
 | |
| # reading this variable is for backwards compat just in case
 | |
| # someone was calling it with the variable from outside the
 | |
| # kernel's build system
 | |
| if (defined($ENV{'KDOC_WERROR'})) {
 | |
|     $Werror = "$ENV{'KDOC_WERROR'}";
 | |
| }
 | |
| # other environment variables are converted to command-line
 | |
| # arguments in cmd_checkdoc in the build system
 | |
| 
 | |
| # Generated docbook code is inserted in a template at a point where
 | |
| # docbook v3.1 requires a non-zero sequence of RefEntry's; see:
 | |
| # https://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
 | |
| # We keep track of number of generated entries and generate a dummy
 | |
| # if needs be to ensure the expanded template can be postprocessed
 | |
| # into html.
 | |
| my $section_counter = 0;
 | |
| 
 | |
| my $lineprefix="";
 | |
| 
 | |
| # Parser states
 | |
| use constant {
 | |
|     STATE_NORMAL        => 0,        # normal code
 | |
|     STATE_NAME          => 1,        # looking for function name
 | |
|     STATE_BODY_MAYBE    => 2,        # body - or maybe more description
 | |
|     STATE_BODY          => 3,        # the body of the comment
 | |
|     STATE_BODY_WITH_BLANK_LINE => 4, # the body, which has a blank line
 | |
|     STATE_PROTO         => 5,        # scanning prototype
 | |
|     STATE_DOCBLOCK      => 6,        # documentation block
 | |
|     STATE_INLINE        => 7,        # gathering doc outside main block
 | |
| };
 | |
| my $state;
 | |
| my $in_doc_sect;
 | |
| my $leading_space;
 | |
| 
 | |
| # Inline documentation state
 | |
| use constant {
 | |
|     STATE_INLINE_NA     => 0, # not applicable ($state != STATE_INLINE)
 | |
|     STATE_INLINE_NAME   => 1, # looking for member name (@foo:)
 | |
|     STATE_INLINE_TEXT   => 2, # looking for member documentation
 | |
|     STATE_INLINE_END    => 3, # done
 | |
|     STATE_INLINE_ERROR  => 4, # error - Comment without header was found.
 | |
|                               # Spit a warning as it's not
 | |
|                               # proper kernel-doc and ignore the rest.
 | |
| };
 | |
| my $inline_doc_state;
 | |
| 
 | |
| #declaration types: can be
 | |
| # 'function', 'struct', 'union', 'enum', 'typedef'
 | |
| my $decl_type;
 | |
| 
 | |
| # Name of the kernel-doc identifier for non-DOC markups
 | |
| my $identifier;
 | |
| 
 | |
| my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
 | |
| my $doc_end = '\*/';
 | |
| my $doc_com = '\s*\*\s*';
 | |
| my $doc_com_body = '\s*\* ?';
 | |
| my $doc_decl = $doc_com . '(\w+)';
 | |
| # @params and a strictly limited set of supported section names
 | |
| # Specifically:
 | |
| #   Match @word:
 | |
| #	  @...:
 | |
| #         @{section-name}:
 | |
| # while trying to not match literal block starts like "example::"
 | |
| #
 | |
| my $doc_sect = $doc_com .
 | |
|     '\s*(\@[.\w]+|\@\.\.\.|description|context|returns?|notes?|examples?)\s*:([^:].*)?$';
 | |
| my $doc_content = $doc_com_body . '(.*)';
 | |
| my $doc_block = $doc_com . 'DOC:\s*(.*)?';
 | |
| my $doc_inline_start = '^\s*/\*\*\s*$';
 | |
| my $doc_inline_sect = '\s*\*\s*(@\s*[\w][\w\.]*\s*):(.*)';
 | |
| my $doc_inline_end = '^\s*\*/\s*$';
 | |
| my $doc_inline_oneline = '^\s*/\*\*\s*(@[\w\s]+):\s*(.*)\s*\*/\s*$';
 | |
| my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
 | |
| my $export_symbol_ns = '^\s*EXPORT_SYMBOL_NS(_GPL)?\s*\(\s*(\w+)\s*,\s*"\S+"\)\s*;';
 | |
| my $function_pointer = qr{([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)};
 | |
| my $attribute = qr{__attribute__\s*\(\([a-z0-9,_\*\s\(\)]*\)\)}i;
 | |
| 
 | |
| my %parameterdescs;
 | |
| my %parameterdesc_start_lines;
 | |
| my @parameterlist;
 | |
| my %sections;
 | |
| my @sectionlist;
 | |
| my %section_start_lines;
 | |
| my $sectcheck;
 | |
| my $struct_actual;
 | |
| 
 | |
| my $contents = "";
 | |
| my $new_start_line = 0;
 | |
| 
 | |
| # the canonical section names. see also $doc_sect above.
 | |
| my $section_default = "Description";	# default section
 | |
| my $section_intro = "Introduction";
 | |
| my $section = $section_default;
 | |
| my $section_context = "Context";
 | |
| my $section_return = "Return";
 | |
| 
 | |
| my $undescribed = "-- undescribed --";
 | |
| 
 | |
| reset_state();
 | |
| 
 | |
| while ($ARGV[0] =~ m/^--?(.*)/) {
 | |
|     my $cmd = $1;
 | |
|     shift @ARGV;
 | |
|     if ($cmd eq "man") {
 | |
|         $output_mode = "man";
 | |
|         @highlights = @highlights_man;
 | |
|         $blankline = $blankline_man;
 | |
|     } elsif ($cmd eq "rst") {
 | |
|         $output_mode = "rst";
 | |
|         @highlights = @highlights_rst;
 | |
|         $blankline = $blankline_rst;
 | |
|     } elsif ($cmd eq "none") {
 | |
|         $output_mode = "none";
 | |
|     } elsif ($cmd eq "module") { # not needed for XML, inherits from calling document
 | |
|         $modulename = shift @ARGV;
 | |
|     } elsif ($cmd eq "function") { # to only output specific functions
 | |
|         $output_selection = OUTPUT_INCLUDE;
 | |
|         $function = shift @ARGV;
 | |
|         $function_table{$function} = 1;
 | |
|     } elsif ($cmd eq "nosymbol") { # Exclude specific symbols
 | |
|         my $symbol = shift @ARGV;
 | |
|         $nosymbol_table{$symbol} = 1;
 | |
|     } elsif ($cmd eq "export") { # only exported symbols
 | |
|         $output_selection = OUTPUT_EXPORTED;
 | |
|         %function_table = ();
 | |
|     } elsif ($cmd eq "internal") { # only non-exported symbols
 | |
|         $output_selection = OUTPUT_INTERNAL;
 | |
|         %function_table = ();
 | |
|     } elsif ($cmd eq "export-file") {
 | |
|         my $file = shift @ARGV;
 | |
|         push(@export_file_list, $file);
 | |
|     } elsif ($cmd eq "v") {
 | |
|         $verbose = 1;
 | |
|     } elsif ($cmd eq "Werror") {
 | |
|         $Werror = 1;
 | |
|     } elsif ($cmd eq "Wreturn") {
 | |
|         $Wreturn = 1;
 | |
|     } elsif ($cmd eq "Wshort-desc" or $cmd eq "Wshort-description") {
 | |
|         $Wshort_desc = 1;
 | |
|     } elsif ($cmd eq "Wcontents-before-sections") {
 | |
|         $Wcontents_before_sections = 1;
 | |
|     } elsif ($cmd eq "Wall") {
 | |
|         $Wreturn = 1;
 | |
|         $Wshort_desc = 1;
 | |
|         $Wcontents_before_sections = 1;
 | |
|     } elsif (($cmd eq "h") || ($cmd eq "help")) {
 | |
|         pod2usage(-exitval => 0, -verbose => 2);
 | |
|     } elsif ($cmd eq 'no-doc-sections') {
 | |
|         $no_doc_sections = 1;
 | |
|     } elsif ($cmd eq 'enable-lineno') {
 | |
|         $enable_lineno = 1;
 | |
|     } elsif ($cmd eq 'show-not-found') {
 | |
|         $show_not_found = 1;  # A no-op but don't fail
 | |
|     } elsif ($cmd eq "sphinx-version") {
 | |
|         my $ver_string = shift @ARGV;
 | |
|         if ($ver_string =~ m/^(\d+)(\.\d+)?(\.\d+)?/) {
 | |
|             $sphinx_major = $1;
 | |
|             if (defined($2)) {
 | |
|                 $sphinx_minor = substr($2,1);
 | |
|             } else {
 | |
|                 $sphinx_minor = 0;
 | |
|             }
 | |
|             if (defined($3)) {
 | |
|                 $sphinx_patch = substr($3,1)
 | |
|             } else {
 | |
|                 $sphinx_patch = 0;
 | |
|             }
 | |
|         } else {
 | |
|             die "Sphinx version should either major.minor or major.minor.patch format\n";
 | |
|         }
 | |
|     } else {
 | |
|         # Unknown argument
 | |
|         pod2usage(
 | |
|             -message => "Argument unknown!\n",
 | |
|             -exitval => 1,
 | |
|             -verbose => 99,
 | |
|             -sections => 'SYNOPSIS',
 | |
|             -output => \*STDERR,
 | |
|             );
 | |
|     }
 | |
|     if ($#ARGV < 0){
 | |
|         pod2usage(
 | |
|             -message => "FILE argument missing\n",
 | |
|             -exitval => 1,
 | |
|             -verbose => 99,
 | |
|             -sections => 'SYNOPSIS',
 | |
|             -output => \*STDERR,
 | |
|             );
 | |
|     }
 | |
| }
 | |
| 
 | |
| # continue execution near EOF;
 | |
| 
 | |
| # The C domain dialect changed on Sphinx 3. So, we need to check the
 | |
| # version in order to produce the right tags.
 | |
| sub findprog($)
 | |
| {
 | |
|     foreach(split(/:/, $ENV{PATH})) {
 | |
|         return "$_/$_[0]" if(-x "$_/$_[0]");
 | |
|     }
 | |
| }
 | |
| 
 | |
| sub get_sphinx_version()
 | |
| {
 | |
|     my $ver;
 | |
| 
 | |
|     my $cmd = "sphinx-build";
 | |
|     if (!findprog($cmd)) {
 | |
|         my $cmd = "sphinx-build3";
 | |
|         if (!findprog($cmd)) {
 | |
|             $sphinx_major = 1;
 | |
|             $sphinx_minor = 2;
 | |
|             $sphinx_patch = 0;
 | |
|             printf STDERR "Warning: Sphinx version not found. Using default (Sphinx version %d.%d.%d)\n",
 | |
|                    $sphinx_major, $sphinx_minor, $sphinx_patch;
 | |
|             return;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     open IN, "$cmd --version 2>&1 |";
 | |
|     while (<IN>) {
 | |
|         if (m/^\s*sphinx-build\s+([\d]+)\.([\d\.]+)(\+\/[\da-f]+)?$/) {
 | |
|             $sphinx_major = $1;
 | |
|             $sphinx_minor = $2;
 | |
|             $sphinx_patch = $3;
 | |
|             last;
 | |
|         }
 | |
|         # Sphinx 1.2.x uses a different format
 | |
|         if (m/^\s*Sphinx.*\s+([\d]+)\.([\d\.]+)$/) {
 | |
|             $sphinx_major = $1;
 | |
|             $sphinx_minor = $2;
 | |
|             $sphinx_patch = $3;
 | |
|             last;
 | |
|         }
 | |
|     }
 | |
|     close IN;
 | |
| }
 | |
| 
 | |
| # get kernel version from env
 | |
| sub get_kernel_version() {
 | |
|     my $version = 'unknown kernel version';
 | |
| 
 | |
|     if (defined($ENV{'KERNELVERSION'})) {
 | |
|         $version = $ENV{'KERNELVERSION'};
 | |
|     }
 | |
|     return $version;
 | |
| }
 | |
| 
 | |
| #
 | |
| sub print_lineno {
 | |
|     my $lineno = shift;
 | |
|     if ($enable_lineno && defined($lineno)) {
 | |
|         print ".. LINENO " . $lineno . "\n";
 | |
|     }
 | |
| }
 | |
| 
 | |
| sub emit_warning {
 | |
|     my $location = shift;
 | |
|     my $msg = shift;
 | |
|     print STDERR "$location: warning: $msg";
 | |
|     ++$warnings;
 | |
| }
 | |
| ##
 | |
| # dumps section contents to arrays/hashes intended for that purpose.
 | |
| #
 | |
| sub dump_section {
 | |
|     my $file = shift;
 | |
|     my $name = shift;
 | |
|     my $contents = join "\n", @_;
 | |
| 
 | |
|     if ($name =~ m/$type_param/) {
 | |
|         $name = $1;
 | |
|         $parameterdescs{$name} = $contents;
 | |
|         $sectcheck = $sectcheck . $name . " ";
 | |
|         $parameterdesc_start_lines{$name} = $new_start_line;
 | |
|         $new_start_line = 0;
 | |
|     } elsif ($name eq "@\.\.\.") {
 | |
|         $name = "...";
 | |
|         $parameterdescs{$name} = $contents;
 | |
|         $sectcheck = $sectcheck . $name . " ";
 | |
|         $parameterdesc_start_lines{$name} = $new_start_line;
 | |
|         $new_start_line = 0;
 | |
|     } else {
 | |
|         if (defined($sections{$name}) && ($sections{$name} ne "")) {
 | |
|             # Only warn on user specified duplicate section names.
 | |
|             if ($name ne $section_default) {
 | |
|                 emit_warning("${file}:$.", "duplicate section name '$name'\n");
 | |
|             }
 | |
|             $sections{$name} .= $contents;
 | |
|         } else {
 | |
|             $sections{$name} = $contents;
 | |
|             push @sectionlist, $name;
 | |
|             $section_start_lines{$name} = $new_start_line;
 | |
|             $new_start_line = 0;
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| ##
 | |
| # dump DOC: section after checking that it should go out
 | |
| #
 | |
| sub dump_doc_section {
 | |
|     my $file = shift;
 | |
|     my $name = shift;
 | |
|     my $contents = join "\n", @_;
 | |
| 
 | |
|     if ($no_doc_sections) {
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     return if (defined($nosymbol_table{$name}));
 | |
| 
 | |
|     if (($output_selection == OUTPUT_ALL) ||
 | |
|         (($output_selection == OUTPUT_INCLUDE) &&
 | |
|          defined($function_table{$name})))
 | |
|     {
 | |
|         dump_section($file, $name, $contents);
 | |
|         output_blockhead({'sectionlist' => \@sectionlist,
 | |
|                           'sections' => \%sections,
 | |
|                           'module' => $modulename,
 | |
|                           'content-only' => ($output_selection != OUTPUT_ALL), });
 | |
|     }
 | |
| }
 | |
| 
 | |
| ##
 | |
| # output function
 | |
| #
 | |
| # parameterdescs, a hash.
 | |
| #  function => "function name"
 | |
| #  parameterlist => @list of parameters
 | |
| #  parameterdescs => %parameter descriptions
 | |
| #  sectionlist => @list of sections
 | |
| #  sections => %section descriptions
 | |
| #
 | |
| 
 | |
| sub output_highlight {
 | |
|     my $contents = join "\n",@_;
 | |
|     my $line;
 | |
| 
 | |
| #   DEBUG
 | |
| #   if (!defined $contents) {
 | |
| #	use Carp;
 | |
| #	confess "output_highlight got called with no args?\n";
 | |
| #   }
 | |
| 
 | |
| #   print STDERR "contents b4:$contents\n";
 | |
|     eval $dohighlight;
 | |
|     die $@ if $@;
 | |
| #   print STDERR "contents af:$contents\n";
 | |
| 
 | |
|     foreach $line (split "\n", $contents) {
 | |
|         if (! $output_preformatted) {
 | |
|             $line =~ s/^\s*//;
 | |
|         }
 | |
|         if ($line eq ""){
 | |
|             if (! $output_preformatted) {
 | |
|                 print $lineprefix, $blankline;
 | |
|             }
 | |
|         } else {
 | |
|             if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
 | |
|                 print "\\&$line";
 | |
|             } else {
 | |
|                 print $lineprefix, $line;
 | |
|             }
 | |
|         }
 | |
|         print "\n";
 | |
|     }
 | |
| }
 | |
| 
 | |
| ##
 | |
| # output function in man
 | |
| sub output_function_man(%) {
 | |
|     my %args = %{$_[0]};
 | |
|     my ($parameter, $section);
 | |
|     my $count;
 | |
|     my $func_macro = $args{'func_macro'};
 | |
|     my $paramcount = $#{$args{'parameterlist'}}; # -1 is empty
 | |
| 
 | |
|     print ".TH \"$args{'function'}\" 9 \"$args{'function'}\" \"$man_date\" \"Kernel Hacker's Manual\" LINUX\n";
 | |
| 
 | |
|     print ".SH NAME\n";
 | |
|     print $args{'function'} . " \\- " . $args{'purpose'} . "\n";
 | |
| 
 | |
|     print ".SH SYNOPSIS\n";
 | |
|     if ($args{'functiontype'} ne "") {
 | |
|         print ".B \"" . $args{'functiontype'} . "\" " . $args{'function'} . "\n";
 | |
|     } else {
 | |
|         print ".B \"" . $args{'function'} . "\n";
 | |
|     }
 | |
|     $count = 0;
 | |
|     my $parenth = "(";
 | |
|     my $post = ",";
 | |
|     foreach my $parameter (@{$args{'parameterlist'}}) {
 | |
|         if ($count == $#{$args{'parameterlist'}}) {
 | |
|             $post = ");";
 | |
|         }
 | |
|         $type = $args{'parametertypes'}{$parameter};
 | |
|         if ($type =~ m/$function_pointer/) {
 | |
|             # pointer-to-function
 | |
|             print ".BI \"" . $parenth . $1 . "\" " . " \") (" . $2 . ")" . $post . "\"\n";
 | |
|         } else {
 | |
|             $type =~ s/([^\*])$/$1 /;
 | |
|             print ".BI \"" . $parenth . $type . "\" " . " \"" . $post . "\"\n";
 | |
|         }
 | |
|         $count++;
 | |
|         $parenth = "";
 | |
|     }
 | |
| 
 | |
|     $paramcount = $#{$args{'parameterlist'}}; # -1 is empty
 | |
|     if ($paramcount >= 0) {
 | |
|     	print ".SH ARGUMENTS\n";
 | |
| 	}
 | |
|     foreach $parameter (@{$args{'parameterlist'}}) {
 | |
|         my $parameter_name = $parameter;
 | |
|         $parameter_name =~ s/\[.*//;
 | |
| 
 | |
|         print ".IP \"" . $parameter . "\" 12\n";
 | |
|         output_highlight($args{'parameterdescs'}{$parameter_name});
 | |
|     }
 | |
|     foreach $section (@{$args{'sectionlist'}}) {
 | |
|         print ".SH \"", uc $section, "\"\n";
 | |
|         output_highlight($args{'sections'}{$section});
 | |
|     }
 | |
| }
 | |
| 
 | |
| ##
 | |
| # output enum in man
 | |
| sub output_enum_man(%) {
 | |
|     my %args = %{$_[0]};
 | |
|     my ($parameter, $section);
 | |
|     my $count;
 | |
| 
 | |
|     print ".TH \"$args{'module'}\" 9 \"enum $args{'enum'}\" \"$man_date\" \"API Manual\" LINUX\n";
 | |
| 
 | |
|     print ".SH NAME\n";
 | |
|     print "enum " . $args{'enum'} . " \\- " . $args{'purpose'} . "\n";
 | |
| 
 | |
|     print ".SH SYNOPSIS\n";
 | |
|     print "enum " . $args{'enum'} . " {\n";
 | |
|     $count = 0;
 | |
|     foreach my $parameter (@{$args{'parameterlist'}}) {
 | |
|         print ".br\n.BI \"    $parameter\"\n";
 | |
|         if ($count == $#{$args{'parameterlist'}}) {
 | |
|             print "\n};\n";
 | |
|             last;
 | |
|         } else {
 | |
|             print ", \n.br\n";
 | |
|         }
 | |
|         $count++;
 | |
|     }
 | |
| 
 | |
|     print ".SH Constants\n";
 | |
|     foreach $parameter (@{$args{'parameterlist'}}) {
 | |
|         my $parameter_name = $parameter;
 | |
|         $parameter_name =~ s/\[.*//;
 | |
| 
 | |
|         print ".IP \"" . $parameter . "\" 12\n";
 | |
|         output_highlight($args{'parameterdescs'}{$parameter_name});
 | |
|     }
 | |
|     foreach $section (@{$args{'sectionlist'}}) {
 | |
|         print ".SH \"$section\"\n";
 | |
|         output_highlight($args{'sections'}{$section});
 | |
|     }
 | |
| }
 | |
| 
 | |
| ##
 | |
| # output struct in man
 | |
| sub output_struct_man(%) {
 | |
|     my %args = %{$_[0]};
 | |
|     my ($parameter, $section);
 | |
| 
 | |
|     print ".TH \"$args{'module'}\" 9 \"" . $args{'type'} . " " . $args{'struct'} . "\" \"$man_date\" \"API Manual\" LINUX\n";
 | |
| 
 | |
|     print ".SH NAME\n";
 | |
|     print $args{'type'} . " " . $args{'struct'} . " \\- " . $args{'purpose'} . "\n";
 | |
| 
 | |
|     my $declaration = $args{'definition'};
 | |
|     $declaration =~ s/\t/  /g;
 | |
|     $declaration =~ s/\n/"\n.br\n.BI \"/g;
 | |
|     print ".SH SYNOPSIS\n";
 | |
|     print $args{'type'} . " " . $args{'struct'} . " {\n.br\n";
 | |
|     print ".BI \"$declaration\n};\n.br\n\n";
 | |
| 
 | |
|     print ".SH Members\n";
 | |
|     foreach $parameter (@{$args{'parameterlist'}}) {
 | |
|         ($parameter =~ /^#/) && next;
 | |
| 
 | |
|         my $parameter_name = $parameter;
 | |
|         $parameter_name =~ s/\[.*//;
 | |
| 
 | |
|         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 | |
|         print ".IP \"" . $parameter . "\" 12\n";
 | |
|         output_highlight($args{'parameterdescs'}{$parameter_name});
 | |
|     }
 | |
|     foreach $section (@{$args{'sectionlist'}}) {
 | |
|         print ".SH \"$section\"\n";
 | |
|         output_highlight($args{'sections'}{$section});
 | |
|     }
 | |
| }
 | |
| 
 | |
| ##
 | |
| # output typedef in man
 | |
| sub output_typedef_man(%) {
 | |
|     my %args = %{$_[0]};
 | |
|     my ($parameter, $section);
 | |
| 
 | |
|     print ".TH \"$args{'module'}\" 9 \"$args{'typedef'}\" \"$man_date\" \"API Manual\" LINUX\n";
 | |
| 
 | |
|     print ".SH NAME\n";
 | |
|     print "typedef " . $args{'typedef'} . " \\- " . $args{'purpose'} . "\n";
 | |
| 
 | |
|     foreach $section (@{$args{'sectionlist'}}) {
 | |
|         print ".SH \"$section\"\n";
 | |
|         output_highlight($args{'sections'}{$section});
 | |
|     }
 | |
| }
 | |
| 
 | |
| sub output_blockhead_man(%) {
 | |
|     my %args = %{$_[0]};
 | |
|     my ($parameter, $section);
 | |
|     my $count;
 | |
| 
 | |
|     print ".TH \"$args{'module'}\" 9 \"$args{'module'}\" \"$man_date\" \"API Manual\" LINUX\n";
 | |
| 
 | |
|     foreach $section (@{$args{'sectionlist'}}) {
 | |
|         print ".SH \"$section\"\n";
 | |
|         output_highlight($args{'sections'}{$section});
 | |
|     }
 | |
| }
 | |
| 
 | |
| ##
 | |
| # output in restructured text
 | |
| #
 | |
| 
 | |
| #
 | |
| # This could use some work; it's used to output the DOC: sections, and
 | |
| # starts by putting out the name of the doc section itself, but that tends
 | |
| # to duplicate a header already in the template file.
 | |
| #
 | |
| sub output_blockhead_rst(%) {
 | |
|     my %args = %{$_[0]};
 | |
|     my ($parameter, $section);
 | |
| 
 | |
|     foreach $section (@{$args{'sectionlist'}}) {
 | |
|         next if (defined($nosymbol_table{$section}));
 | |
| 
 | |
|         if ($output_selection != OUTPUT_INCLUDE) {
 | |
|             print ".. _$section:\n\n";
 | |
|             print "**$section**\n\n";
 | |
|         }
 | |
|         print_lineno($section_start_lines{$section});
 | |
|         output_highlight_rst($args{'sections'}{$section});
 | |
|         print "\n";
 | |
|     }
 | |
| }
 | |
| 
 | |
| #
 | |
| # Apply the RST highlights to a sub-block of text.
 | |
| #
 | |
| sub highlight_block($) {
 | |
|     # The dohighlight kludge requires the text be called $contents
 | |
|     my $contents = shift;
 | |
|     eval $dohighlight;
 | |
|     die $@ if $@;
 | |
|     return $contents;
 | |
| }
 | |
| 
 | |
| #
 | |
| # Regexes used only here.
 | |
| #
 | |
| my $sphinx_literal = '^[^.].*::$';
 | |
| my $sphinx_cblock = '^\.\.\ +code-block::';
 | |
| 
 | |
| sub output_highlight_rst {
 | |
|     my $input = join "\n",@_;
 | |
|     my $output = "";
 | |
|     my $line;
 | |
|     my $in_literal = 0;
 | |
|     my $litprefix;
 | |
|     my $block = "";
 | |
| 
 | |
|     foreach $line (split "\n",$input) {
 | |
|         #
 | |
|         # If we're in a literal block, see if we should drop out
 | |
|         # of it.  Otherwise pass the line straight through unmunged.
 | |
|         #
 | |
|         if ($in_literal) {
 | |
|             if (! ($line =~ /^\s*$/)) {
 | |
|                 #
 | |
|                 # If this is the first non-blank line in a literal
 | |
|                 # block we need to figure out what the proper indent is.
 | |
|                 #
 | |
|                 if ($litprefix eq "") {
 | |
|                     $line =~ /^(\s*)/;
 | |
|                     $litprefix = '^' . $1;
 | |
|                     $output .= $line . "\n";
 | |
|                 } elsif (! ($line =~ /$litprefix/)) {
 | |
|                     $in_literal = 0;
 | |
|                 } else {
 | |
|                     $output .= $line . "\n";
 | |
|                 }
 | |
|             } else {
 | |
|                 $output .= $line . "\n";
 | |
|             }
 | |
|         }
 | |
|         #
 | |
|         # Not in a literal block (or just dropped out)
 | |
|         #
 | |
|         if (! $in_literal) {
 | |
|             $block .= $line . "\n";
 | |
|             if (($line =~ /$sphinx_literal/) || ($line =~ /$sphinx_cblock/)) {
 | |
|                 $in_literal = 1;
 | |
|                 $litprefix = "";
 | |
|                 $output .= highlight_block($block);
 | |
|                 $block = ""
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if ($block) {
 | |
|         $output .= highlight_block($block);
 | |
|     }
 | |
|     foreach $line (split "\n", $output) {
 | |
|         print $lineprefix . $line . "\n";
 | |
|     }
 | |
| }
 | |
| 
 | |
| sub output_function_rst(%) {
 | |
|     my %args = %{$_[0]};
 | |
|     my ($parameter, $section);
 | |
|     my $oldprefix = $lineprefix;
 | |
| 
 | |
|     my $signature = "";
 | |
|     my $func_macro = $args{'func_macro'};
 | |
|     my $paramcount = $#{$args{'parameterlist'}}; # -1 is empty
 | |
| 
 | |
| 	if ($func_macro) {
 | |
|         $signature = $args{'function'};
 | |
| 	} else {
 | |
| 		if ($args{'functiontype'}) {
 | |
|         	$signature = $args{'functiontype'} . " ";
 | |
| 		}
 | |
| 		$signature .= $args{'function'} . " (";
 | |
|     }
 | |
| 
 | |
|     my $count = 0;
 | |
|     foreach my $parameter (@{$args{'parameterlist'}}) {
 | |
|         if ($count ne 0) {
 | |
|             $signature .= ", ";
 | |
|         }
 | |
|         $count++;
 | |
|         $type = $args{'parametertypes'}{$parameter};
 | |
| 
 | |
|         if ($type =~ m/$function_pointer/) {
 | |
|             # pointer-to-function
 | |
|             $signature .= $1 . $parameter . ") (" . $2 . ")";
 | |
|         } else {
 | |
|             $signature .= $type;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (!$func_macro) {
 | |
|     	$signature .= ")";
 | |
|     }
 | |
| 
 | |
|     if ($sphinx_major < 3) {
 | |
|         if ($args{'typedef'}) {
 | |
|             print ".. c:type:: ". $args{'function'} . "\n\n";
 | |
|             print_lineno($declaration_start_line);
 | |
|             print "   **Typedef**: ";
 | |
|             $lineprefix = "";
 | |
|             output_highlight_rst($args{'purpose'});
 | |
|             print "\n\n**Syntax**\n\n";
 | |
|             print "  ``$signature``\n\n";
 | |
|         } else {
 | |
|             print ".. c:function:: $signature\n\n";
 | |
|         }
 | |
|     } else {
 | |
|         if ($args{'typedef'} || $args{'functiontype'} eq "") {
 | |
|             print ".. c:macro:: ". $args{'function'} . "\n\n";
 | |
| 
 | |
|             if ($args{'typedef'}) {
 | |
|                 print_lineno($declaration_start_line);
 | |
|                 print "   **Typedef**: ";
 | |
|                 $lineprefix = "";
 | |
|                 output_highlight_rst($args{'purpose'});
 | |
|                 print "\n\n**Syntax**\n\n";
 | |
|                 print "  ``$signature``\n\n";
 | |
|             } else {
 | |
|                 print "``$signature``\n\n";
 | |
|             }
 | |
|         } else {
 | |
|             print ".. c:function:: $signature\n\n";
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (!$args{'typedef'}) {
 | |
|         print_lineno($declaration_start_line);
 | |
|         $lineprefix = "   ";
 | |
|         output_highlight_rst($args{'purpose'});
 | |
|         print "\n";
 | |
|     }
 | |
| 
 | |
|     #
 | |
|     # Put our descriptive text into a container (thus an HTML <div>) to help
 | |
|     # set the function prototypes apart.
 | |
|     #
 | |
|     $lineprefix = "  ";
 | |
| 	if ($paramcount >= 0) {
 | |
|     	print ".. container:: kernelindent\n\n";
 | |
|    		print $lineprefix . "**Parameters**\n\n";
 | |
|     }
 | |
|     foreach $parameter (@{$args{'parameterlist'}}) {
 | |
|         my $parameter_name = $parameter;
 | |
|         $parameter_name =~ s/\[.*//;
 | |
|         $type = $args{'parametertypes'}{$parameter};
 | |
| 
 | |
|         if ($type ne "") {
 | |
|             print $lineprefix . "``$type``\n";
 | |
|         } else {
 | |
|             print $lineprefix . "``$parameter``\n";
 | |
|         }
 | |
| 
 | |
|         print_lineno($parameterdesc_start_lines{$parameter_name});
 | |
| 
 | |
|         $lineprefix = "    ";
 | |
|         if (defined($args{'parameterdescs'}{$parameter_name}) &&
 | |
|             $args{'parameterdescs'}{$parameter_name} ne $undescribed) {
 | |
|             output_highlight_rst($args{'parameterdescs'}{$parameter_name});
 | |
|         } else {
 | |
|             print $lineprefix . "*undescribed*\n";
 | |
|         }
 | |
|         $lineprefix = "  ";
 | |
|         print "\n";
 | |
|     }
 | |
| 
 | |
|     output_section_rst(@_);
 | |
|     $lineprefix = $oldprefix;
 | |
| }
 | |
| 
 | |
| sub output_section_rst(%) {
 | |
|     my %args = %{$_[0]};
 | |
|     my $section;
 | |
|     my $oldprefix = $lineprefix;
 | |
| 
 | |
|     foreach $section (@{$args{'sectionlist'}}) {
 | |
|         print $lineprefix . "**$section**\n\n";
 | |
|         print_lineno($section_start_lines{$section});
 | |
|         output_highlight_rst($args{'sections'}{$section});
 | |
|         print "\n";
 | |
|     }
 | |
|     print "\n";
 | |
| }
 | |
| 
 | |
| sub output_enum_rst(%) {
 | |
|     my %args = %{$_[0]};
 | |
|     my ($parameter);
 | |
|     my $oldprefix = $lineprefix;
 | |
|     my $count;
 | |
|     my $outer;
 | |
| 
 | |
|     if ($sphinx_major < 3) {
 | |
|         my $name = "enum " . $args{'enum'};
 | |
|         print "\n\n.. c:type:: " . $name . "\n\n";
 | |
|     } else {
 | |
|         my $name = $args{'enum'};
 | |
|         print "\n\n.. c:enum:: " . $name . "\n\n";
 | |
|     }
 | |
|     print_lineno($declaration_start_line);
 | |
|     $lineprefix = "  ";
 | |
|     output_highlight_rst($args{'purpose'});
 | |
|     print "\n";
 | |
| 
 | |
|     print ".. container:: kernelindent\n\n";
 | |
|     $outer = $lineprefix . "  ";
 | |
|     $lineprefix = $outer . "  ";
 | |
|     print $outer . "**Constants**\n\n";
 | |
|     foreach $parameter (@{$args{'parameterlist'}}) {
 | |
|         print $outer . "``$parameter``\n";
 | |
| 
 | |
|         if ($args{'parameterdescs'}{$parameter} ne $undescribed) {
 | |
|             output_highlight_rst($args{'parameterdescs'}{$parameter});
 | |
|         } else {
 | |
|             print $lineprefix . "*undescribed*\n";
 | |
|         }
 | |
|         print "\n";
 | |
|     }
 | |
|     print "\n";
 | |
|     $lineprefix = $oldprefix;
 | |
|     output_section_rst(@_);
 | |
| }
 | |
| 
 | |
| sub output_typedef_rst(%) {
 | |
|     my %args = %{$_[0]};
 | |
|     my ($parameter);
 | |
|     my $oldprefix = $lineprefix;
 | |
|     my $name;
 | |
| 
 | |
|     if ($sphinx_major < 3) {
 | |
|         $name = "typedef " . $args{'typedef'};
 | |
|     } else {
 | |
|         $name = $args{'typedef'};
 | |
|     }
 | |
|     print "\n\n.. c:type:: " . $name . "\n\n";
 | |
|     print_lineno($declaration_start_line);
 | |
|     $lineprefix = "   ";
 | |
|     output_highlight_rst($args{'purpose'});
 | |
|     print "\n";
 | |
| 
 | |
|     $lineprefix = $oldprefix;
 | |
|     output_section_rst(@_);
 | |
| }
 | |
| 
 | |
| sub output_struct_rst(%) {
 | |
|     my %args = %{$_[0]};
 | |
|     my ($parameter);
 | |
|     my $oldprefix = $lineprefix;
 | |
| 
 | |
|     if ($sphinx_major < 3) {
 | |
|         my $name = $args{'type'} . " " . $args{'struct'};
 | |
|         print "\n\n.. c:type:: " . $name . "\n\n";
 | |
|     } else {
 | |
|         my $name = $args{'struct'};
 | |
|         if ($args{'type'} eq 'union') {
 | |
|             print "\n\n.. c:union:: " . $name . "\n\n";
 | |
|         } else {
 | |
|             print "\n\n.. c:struct:: " . $name . "\n\n";
 | |
|         }
 | |
|     }
 | |
|     print_lineno($declaration_start_line);
 | |
|     $lineprefix = "  ";
 | |
|     output_highlight_rst($args{'purpose'});
 | |
|     print "\n";
 | |
| 
 | |
|     print ".. container:: kernelindent\n\n";
 | |
|     print $lineprefix . "**Definition**::\n\n";
 | |
|     my $declaration = $args{'definition'};
 | |
|     $lineprefix = $lineprefix . "  ";
 | |
|     $declaration =~ s/\t/$lineprefix/g;
 | |
|     print $lineprefix . $args{'type'} . " " . $args{'struct'} . " {\n$declaration" . $lineprefix . "};\n\n";
 | |
| 
 | |
|     $lineprefix = "  ";
 | |
|     print $lineprefix . "**Members**\n\n";
 | |
|     foreach $parameter (@{$args{'parameterlist'}}) {
 | |
|         ($parameter =~ /^#/) && next;
 | |
| 
 | |
|         my $parameter_name = $parameter;
 | |
|         $parameter_name =~ s/\[.*//;
 | |
| 
 | |
|         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 | |
|         $type = $args{'parametertypes'}{$parameter};
 | |
|         print_lineno($parameterdesc_start_lines{$parameter_name});
 | |
|         print $lineprefix . "``" . $parameter . "``\n";
 | |
|         $lineprefix = "    ";
 | |
|         output_highlight_rst($args{'parameterdescs'}{$parameter_name});
 | |
|         $lineprefix = "  ";
 | |
|         print "\n";
 | |
|     }
 | |
|     print "\n";
 | |
| 
 | |
|     $lineprefix = $oldprefix;
 | |
|     output_section_rst(@_);
 | |
| }
 | |
| 
 | |
| ## none mode output functions
 | |
| 
 | |
| sub output_function_none(%) {
 | |
| }
 | |
| 
 | |
| sub output_enum_none(%) {
 | |
| }
 | |
| 
 | |
| sub output_typedef_none(%) {
 | |
| }
 | |
| 
 | |
| sub output_struct_none(%) {
 | |
| }
 | |
| 
 | |
| sub output_blockhead_none(%) {
 | |
| }
 | |
| 
 | |
| ##
 | |
| # generic output function for all types (function, struct/union, typedef, enum);
 | |
| # calls the generated, variable output_ function name based on
 | |
| # functype and output_mode
 | |
| sub output_declaration {
 | |
|     no strict 'refs';
 | |
|     my $name = shift;
 | |
|     my $functype = shift;
 | |
|     my $func = "output_${functype}_$output_mode";
 | |
| 
 | |
|     return if (defined($nosymbol_table{$name}));
 | |
| 
 | |
|     if (($output_selection == OUTPUT_ALL) ||
 | |
|         (($output_selection == OUTPUT_INCLUDE ||
 | |
|           $output_selection == OUTPUT_EXPORTED) &&
 | |
|          defined($function_table{$name})) ||
 | |
|         ($output_selection == OUTPUT_INTERNAL &&
 | |
|          !($functype eq "function" && defined($function_table{$name}))))
 | |
|     {
 | |
|         &$func(@_);
 | |
|         $section_counter++;
 | |
|     }
 | |
| }
 | |
| 
 | |
| ##
 | |
| # generic output function - calls the right one based on current output mode.
 | |
| sub output_blockhead {
 | |
|     no strict 'refs';
 | |
|     my $func = "output_blockhead_" . $output_mode;
 | |
|     &$func(@_);
 | |
|     $section_counter++;
 | |
| }
 | |
| 
 | |
| ##
 | |
| # takes a declaration (struct, union, enum, typedef) and
 | |
| # invokes the right handler. NOT called for functions.
 | |
| sub dump_declaration($$) {
 | |
|     no strict 'refs';
 | |
|     my ($prototype, $file) = @_;
 | |
|     my $func = "dump_" . $decl_type;
 | |
|     &$func(@_);
 | |
| }
 | |
| 
 | |
| sub dump_union($$) {
 | |
|     dump_struct(@_);
 | |
| }
 | |
| 
 | |
| sub dump_struct($$) {
 | |
|     my $x = shift;
 | |
|     my $file = shift;
 | |
|     my $decl_type;
 | |
|     my $members;
 | |
|     my $type = qr{struct|union};
 | |
|     # For capturing struct/union definition body, i.e. "{members*}qualifiers*"
 | |
|     my $qualifiers = qr{$attribute|__packed|__aligned|____cacheline_aligned_in_smp|____cacheline_aligned};
 | |
|     my $definition_body = qr{\{(.*)\}\s*$qualifiers*};
 | |
|     my $struct_members = qr{($type)([^\{\};]+)\{([^\{\}]*)\}([^\{\}\;]*)\;};
 | |
| 
 | |
|     if ($x =~ /($type)\s+(\w+)\s*$definition_body/) {
 | |
|         $decl_type = $1;
 | |
|         $declaration_name = $2;
 | |
|         $members = $3;
 | |
|     } elsif ($x =~ /typedef\s+($type)\s*$definition_body\s*(\w+)\s*;/) {
 | |
|         $decl_type = $1;
 | |
|         $declaration_name = $3;
 | |
|         $members = $2;
 | |
|     }
 | |
| 
 | |
|     if ($members) {
 | |
|         if ($identifier ne $declaration_name) {
 | |
|             emit_warning("${file}:$.", "expecting prototype for $decl_type $identifier. Prototype was for $decl_type $declaration_name instead\n");
 | |
|             return;
 | |
|         }
 | |
| 
 | |
|         # ignore members marked private:
 | |
|         $members =~ s/\/\*\s*private:.*?\/\*\s*public:.*?\*\///gosi;
 | |
|         $members =~ s/\/\*\s*private:.*//gosi;
 | |
|         # strip comments:
 | |
|         $members =~ s/\/\*.*?\*\///gos;
 | |
|         # strip attributes
 | |
|         $members =~ s/\s*$attribute/ /gi;
 | |
|         $members =~ s/\s*__aligned\s*\([^;]*\)/ /gos;
 | |
|         $members =~ s/\s*__counted_by\s*\([^;]*\)/ /gos;
 | |
|         $members =~ s/\s*__counted_by_(le|be)\s*\([^;]*\)/ /gos;
 | |
|         $members =~ s/\s*__packed\s*/ /gos;
 | |
|         $members =~ s/\s*CRYPTO_MINALIGN_ATTR/ /gos;
 | |
|         $members =~ s/\s*____cacheline_aligned_in_smp/ /gos;
 | |
|         $members =~ s/\s*____cacheline_aligned/ /gos;
 | |
|         # unwrap struct_group():
 | |
|         # - first eat non-declaration parameters and rewrite for final match
 | |
|         # - then remove macro, outer parens, and trailing semicolon
 | |
|         $members =~ s/\bstruct_group\s*\(([^,]*,)/STRUCT_GROUP(/gos;
 | |
|         $members =~ s/\bstruct_group_attr\s*\(([^,]*,){2}/STRUCT_GROUP(/gos;
 | |
|         $members =~ s/\bstruct_group_tagged\s*\(([^,]*),([^,]*),/struct $1 $2; STRUCT_GROUP(/gos;
 | |
|         $members =~ s/\b__struct_group\s*\(([^,]*,){3}/STRUCT_GROUP(/gos;
 | |
|         $members =~ s/\bSTRUCT_GROUP(\(((?:(?>[^)(]+)|(?1))*)\))[^;]*;/$2/gos;
 | |
| 
 | |
|         my $args = qr{([^,)]+)};
 | |
|         # replace DECLARE_BITMAP
 | |
|         $members =~ s/__ETHTOOL_DECLARE_LINK_MODE_MASK\s*\(([^\)]+)\)/DECLARE_BITMAP($1, __ETHTOOL_LINK_MODE_MASK_NBITS)/gos;
 | |
|         $members =~ s/DECLARE_PHY_INTERFACE_MASK\s*\(([^\)]+)\)/DECLARE_BITMAP($1, PHY_INTERFACE_MODE_MAX)/gos;
 | |
|         $members =~ s/DECLARE_BITMAP\s*\($args,\s*$args\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
 | |
|         # replace DECLARE_HASHTABLE
 | |
|         $members =~ s/DECLARE_HASHTABLE\s*\($args,\s*$args\)/unsigned long $1\[1 << (($2) - 1)\]/gos;
 | |
|         # replace DECLARE_KFIFO
 | |
|         $members =~ s/DECLARE_KFIFO\s*\($args,\s*$args,\s*$args\)/$2 \*$1/gos;
 | |
|         # replace DECLARE_KFIFO_PTR
 | |
|         $members =~ s/DECLARE_KFIFO_PTR\s*\($args,\s*$args\)/$2 \*$1/gos;
 | |
|         # replace DECLARE_FLEX_ARRAY
 | |
|         $members =~ s/(?:__)?DECLARE_FLEX_ARRAY\s*\($args,\s*$args\)/$1 $2\[\]/gos;
 | |
|         #replace DEFINE_DMA_UNMAP_ADDR
 | |
|         $members =~ s/DEFINE_DMA_UNMAP_ADDR\s*\($args\)/dma_addr_t $1/gos;
 | |
|         #replace DEFINE_DMA_UNMAP_LEN
 | |
|         $members =~ s/DEFINE_DMA_UNMAP_LEN\s*\($args\)/__u32 $1/gos;
 | |
|         my $declaration = $members;
 | |
| 
 | |
|         # Split nested struct/union elements as newer ones
 | |
|         while ($members =~ m/$struct_members/) {
 | |
|             my $newmember;
 | |
|             my $maintype = $1;
 | |
|             my $ids = $4;
 | |
|             my $content = $3;
 | |
|             foreach my $id(split /,/, $ids) {
 | |
|                 $newmember .= "$maintype $id; ";
 | |
| 
 | |
|                 $id =~ s/[:\[].*//;
 | |
|                 $id =~ s/^\s*\**(\S+)\s*/$1/;
 | |
|                 foreach my $arg (split /;/, $content) {
 | |
|                     next if ($arg =~ m/^\s*$/);
 | |
|                     if ($arg =~ m/^([^\(]+\(\*?\s*)([\w\.]*)(\s*\).*)/) {
 | |
|                         # pointer-to-function
 | |
|                         my $type = $1;
 | |
|                         my $name = $2;
 | |
|                         my $extra = $3;
 | |
|                         next if (!$name);
 | |
|                         if ($id =~ m/^\s*$/) {
 | |
|                             # anonymous struct/union
 | |
|                             $newmember .= "$type$name$extra; ";
 | |
|                         } else {
 | |
|                             $newmember .= "$type$id.$name$extra; ";
 | |
|                         }
 | |
|                     } else {
 | |
|                         my $type;
 | |
|                         my $names;
 | |
|                         $arg =~ s/^\s+//;
 | |
|                         $arg =~ s/\s+$//;
 | |
|                         # Handle bitmaps
 | |
|                         $arg =~ s/:\s*\d+\s*//g;
 | |
|                         # Handle arrays
 | |
|                         $arg =~ s/\[.*\]//g;
 | |
|                         # The type may have multiple words,
 | |
|                         # and multiple IDs can be defined, like:
 | |
|                         #    const struct foo, *bar, foobar
 | |
|                         # So, we remove spaces when parsing the
 | |
|                         # names, in order to match just names
 | |
|                         # and commas for the names
 | |
|                         $arg =~ s/\s*,\s*/,/g;
 | |
|                         if ($arg =~ m/(.*)\s+([\S+,]+)/) {
 | |
|                             $type = $1;
 | |
|                             $names = $2;
 | |
|                         } else {
 | |
|                             $newmember .= "$arg; ";
 | |
|                             next;
 | |
|                         }
 | |
|                         foreach my $name (split /,/, $names) {
 | |
|                             $name =~ s/^\s*\**(\S+)\s*/$1/;
 | |
|                             next if (($name =~ m/^\s*$/));
 | |
|                             if ($id =~ m/^\s*$/) {
 | |
|                                 # anonymous struct/union
 | |
|                                 $newmember .= "$type $name; ";
 | |
|                             } else {
 | |
|                                 $newmember .= "$type $id.$name; ";
 | |
|                             }
 | |
|                         }
 | |
|                     }
 | |
|                 }
 | |
|             }
 | |
|             $members =~ s/$struct_members/$newmember/;
 | |
|         }
 | |
| 
 | |
|         # Ignore other nested elements, like enums
 | |
|         $members =~ s/(\{[^\{\}]*\})//g;
 | |
| 
 | |
|         create_parameterlist($members, ';', $file, $declaration_name);
 | |
|         check_sections($file, $declaration_name, $decl_type, $sectcheck, $struct_actual);
 | |
| 
 | |
|         # Adjust declaration for better display
 | |
|         $declaration =~ s/([\{;])/$1\n/g;
 | |
|         $declaration =~ s/\}\s+;/};/g;
 | |
|         # Better handle inlined enums
 | |
|         do {} while ($declaration =~ s/(enum\s+\{[^\}]+),([^\n])/$1,\n$2/);
 | |
| 
 | |
|         my @def_args = split /\n/, $declaration;
 | |
|         my $level = 1;
 | |
|         $declaration = "";
 | |
|         foreach my $clause (@def_args) {
 | |
|             $clause =~ s/^\s+//;
 | |
|             $clause =~ s/\s+$//;
 | |
|             $clause =~ s/\s+/ /;
 | |
|             next if (!$clause);
 | |
|             $level-- if ($clause =~ m/(\})/ && $level > 1);
 | |
|             if (!($clause =~ m/^\s*#/)) {
 | |
|                 $declaration .= "\t" x $level;
 | |
|             }
 | |
|             $declaration .= "\t" . $clause . "\n";
 | |
|             $level++ if ($clause =~ m/(\{)/ && !($clause =~m/\}/));
 | |
|         }
 | |
|         output_declaration($declaration_name,
 | |
|                    'struct',
 | |
|                    {'struct' => $declaration_name,
 | |
|                     'module' => $modulename,
 | |
|                     'definition' => $declaration,
 | |
|                     'parameterlist' => \@parameterlist,
 | |
|                     'parameterdescs' => \%parameterdescs,
 | |
|                     'parametertypes' => \%parametertypes,
 | |
|                     'sectionlist' => \@sectionlist,
 | |
|                     'sections' => \%sections,
 | |
|                     'purpose' => $declaration_purpose,
 | |
|                     'type' => $decl_type
 | |
|                    });
 | |
|     } else {
 | |
|         print STDERR "${file}:$.: error: Cannot parse struct or union!\n";
 | |
|         ++$errors;
 | |
|     }
 | |
| }
 | |
| 
 | |
| 
 | |
| sub show_warnings($$) {
 | |
|     my $functype = shift;
 | |
|     my $name = shift;
 | |
| 
 | |
|     return 0 if (defined($nosymbol_table{$name}));
 | |
| 
 | |
|     return 1 if ($output_selection == OUTPUT_ALL);
 | |
| 
 | |
|     if ($output_selection == OUTPUT_EXPORTED) {
 | |
|         if (defined($function_table{$name})) {
 | |
|             return 1;
 | |
|         } else {
 | |
|             return 0;
 | |
|         }
 | |
|     }
 | |
|     if ($output_selection == OUTPUT_INTERNAL) {
 | |
|         if (!($functype eq "function" && defined($function_table{$name}))) {
 | |
|             return 1;
 | |
|         } else {
 | |
|             return 0;
 | |
|         }
 | |
|     }
 | |
|     if ($output_selection == OUTPUT_INCLUDE) {
 | |
|         if (defined($function_table{$name})) {
 | |
|             return 1;
 | |
|         } else {
 | |
|             return 0;
 | |
|         }
 | |
|     }
 | |
|     die("Please add the new output type at show_warnings()");
 | |
| }
 | |
| 
 | |
| sub dump_enum($$) {
 | |
|     my $x = shift;
 | |
|     my $file = shift;
 | |
|     my $members;
 | |
| 
 | |
|     # ignore members marked private:
 | |
|     $x =~ s/\/\*\s*private:.*?\/\*\s*public:.*?\*\///gosi;
 | |
|     $x =~ s/\/\*\s*private:.*}/}/gosi;
 | |
| 
 | |
|     $x =~ s@/\*.*?\*/@@gos;	# strip comments.
 | |
|     # strip #define macros inside enums
 | |
|     $x =~ s@#\s*((define|ifdef|if)\s+|endif)[^;]*;@@gos;
 | |
| 
 | |
|     if ($x =~ /typedef\s+enum\s*\{(.*)\}\s*(\w*)\s*;/) {
 | |
|         $declaration_name = $2;
 | |
|         $members = $1;
 | |
|     } elsif ($x =~ /enum\s+(\w*)\s*\{(.*)\}/) {
 | |
|         $declaration_name = $1;
 | |
|         $members = $2;
 | |
|     }
 | |
| 
 | |
|     if ($members) {
 | |
|         if ($identifier ne $declaration_name) {
 | |
|             if ($identifier eq "") {
 | |
|                 emit_warning("${file}:$.", "wrong kernel-doc identifier on line:\n");
 | |
|             } else {
 | |
|                 emit_warning("${file}:$.", "expecting prototype for enum $identifier. Prototype was for enum $declaration_name instead\n");
 | |
|             }
 | |
|             return;
 | |
|         }
 | |
|         $declaration_name = "(anonymous)" if ($declaration_name eq "");
 | |
| 
 | |
|         my %_members;
 | |
| 
 | |
|         $members =~ s/\s+$//;
 | |
|         $members =~ s/\([^;]*?[\)]//g;
 | |
| 
 | |
|         foreach my $arg (split ',', $members) {
 | |
|             $arg =~ s/^\s*(\w+).*/$1/;
 | |
|             push @parameterlist, $arg;
 | |
|             if (!$parameterdescs{$arg}) {
 | |
|                 $parameterdescs{$arg} = $undescribed;
 | |
|                 if (show_warnings("enum", $declaration_name)) {
 | |
|                     emit_warning("${file}:$.", "Enum value '$arg' not described in enum '$declaration_name'\n");
 | |
|                 }
 | |
|             }
 | |
|             $_members{$arg} = 1;
 | |
|         }
 | |
| 
 | |
|         while (my ($k, $v) = each %parameterdescs) {
 | |
|             if (!exists($_members{$k})) {
 | |
|                 if (show_warnings("enum", $declaration_name)) {
 | |
|                     emit_warning("${file}:$.", "Excess enum value '$k' description in '$declaration_name'\n");
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         output_declaration($declaration_name,
 | |
|                            'enum',
 | |
|                            {'enum' => $declaration_name,
 | |
|                             'module' => $modulename,
 | |
|                             'parameterlist' => \@parameterlist,
 | |
|                             'parameterdescs' => \%parameterdescs,
 | |
|                             'sectionlist' => \@sectionlist,
 | |
|                             'sections' => \%sections,
 | |
|                             'purpose' => $declaration_purpose
 | |
|                            });
 | |
|     } else {
 | |
|         print STDERR "${file}:$.: error: Cannot parse enum!\n";
 | |
|         ++$errors;
 | |
|     }
 | |
| }
 | |
| 
 | |
| my $typedef_type = qr { ((?:\s+[\w\*]+\b){1,8})\s* }x;
 | |
| my $typedef_ident = qr { \*?\s*(\w\S+)\s* }x;
 | |
| my $typedef_args = qr { \s*\((.*)\); }x;
 | |
| 
 | |
| my $typedef1 = qr { typedef$typedef_type\($typedef_ident\)$typedef_args }x;
 | |
| my $typedef2 = qr { typedef$typedef_type$typedef_ident$typedef_args }x;
 | |
| 
 | |
| sub dump_typedef($$) {
 | |
|     my $x = shift;
 | |
|     my $file = shift;
 | |
| 
 | |
|     $x =~ s@/\*.*?\*/@@gos;	# strip comments.
 | |
| 
 | |
|     # Parse function typedef prototypes
 | |
|     if ($x =~ $typedef1 || $x =~ $typedef2) {
 | |
|         $return_type = $1;
 | |
|         $declaration_name = $2;
 | |
|         my $args = $3;
 | |
|         $return_type =~ s/^\s+//;
 | |
| 
 | |
|         if ($identifier ne $declaration_name) {
 | |
|             emit_warning("${file}:$.", "expecting prototype for typedef $identifier. Prototype was for typedef $declaration_name instead\n");
 | |
|             return;
 | |
|         }
 | |
| 
 | |
|         create_parameterlist($args, ',', $file, $declaration_name);
 | |
| 
 | |
|         output_declaration($declaration_name,
 | |
|                            'function',
 | |
|                            {'function' => $declaration_name,
 | |
|                             'typedef' => 1,
 | |
|                             'module' => $modulename,
 | |
|                             'functiontype' => $return_type,
 | |
|                             'parameterlist' => \@parameterlist,
 | |
|                             'parameterdescs' => \%parameterdescs,
 | |
|                             'parametertypes' => \%parametertypes,
 | |
|                             'sectionlist' => \@sectionlist,
 | |
|                             'sections' => \%sections,
 | |
|                             'purpose' => $declaration_purpose
 | |
|                            });
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
 | |
|         $x =~ s/\(*.\)\s*;$/;/;
 | |
|         $x =~ s/\[*.\]\s*;$/;/;
 | |
|     }
 | |
| 
 | |
|     if ($x =~ /typedef.*\s+(\w+)\s*;/) {
 | |
|         $declaration_name = $1;
 | |
| 
 | |
|         if ($identifier ne $declaration_name) {
 | |
|             emit_warning("${file}:$.", "expecting prototype for typedef $identifier. Prototype was for typedef $declaration_name instead\n");
 | |
|             return;
 | |
|         }
 | |
| 
 | |
|         output_declaration($declaration_name,
 | |
|                            'typedef',
 | |
|                            {'typedef' => $declaration_name,
 | |
|                             'module' => $modulename,
 | |
|                             'sectionlist' => \@sectionlist,
 | |
|                             'sections' => \%sections,
 | |
|                             'purpose' => $declaration_purpose
 | |
|                            });
 | |
|     } else {
 | |
|         print STDERR "${file}:$.: error: Cannot parse typedef!\n";
 | |
|         ++$errors;
 | |
|     }
 | |
| }
 | |
| 
 | |
| sub save_struct_actual($) {
 | |
|     my $actual = shift;
 | |
| 
 | |
|     # strip all spaces from the actual param so that it looks like one string item
 | |
|     $actual =~ s/\s*//g;
 | |
|     $struct_actual = $struct_actual . $actual . " ";
 | |
| }
 | |
| 
 | |
| sub create_parameterlist($$$$) {
 | |
|     my $args = shift;
 | |
|     my $splitter = shift;
 | |
|     my $file = shift;
 | |
|     my $declaration_name = shift;
 | |
|     my $type;
 | |
|     my $param;
 | |
| 
 | |
|     # temporarily replace commas inside function pointer definition
 | |
|     my $arg_expr = qr{\([^\),]+};
 | |
|     while ($args =~ /$arg_expr,/) {
 | |
|         $args =~ s/($arg_expr),/$1#/g;
 | |
|     }
 | |
| 
 | |
|     foreach my $arg (split($splitter, $args)) {
 | |
|         # strip comments
 | |
|         $arg =~ s/\/\*.*\*\///;
 | |
|         # ignore argument attributes
 | |
|         $arg =~ s/\sPOS0?\s/ /;
 | |
|         # strip leading/trailing spaces
 | |
|         $arg =~ s/^\s*//;
 | |
|         $arg =~ s/\s*$//;
 | |
|         $arg =~ s/\s+/ /;
 | |
| 
 | |
|         if ($arg =~ /^#/) {
 | |
|             # Treat preprocessor directive as a typeless variable just to fill
 | |
|             # corresponding data structures "correctly". Catch it later in
 | |
|             # output_* subs.
 | |
|             push_parameter($arg, "", "", $file);
 | |
|         } elsif ($arg =~ m/\(.+\)\s*\(/) {
 | |
|             # pointer-to-function
 | |
|             $arg =~ tr/#/,/;
 | |
|             $arg =~ m/[^\(]+\(\*?\s*([\w\[\]\.]*)\s*\)/;
 | |
|             $param = $1;
 | |
|             $type = $arg;
 | |
|             $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
 | |
|             save_struct_actual($param);
 | |
|             push_parameter($param, $type, $arg, $file, $declaration_name);
 | |
|         } elsif ($arg =~ m/\(.+\)\s*\[/) {
 | |
|             # array-of-pointers
 | |
|             $arg =~ tr/#/,/;
 | |
|             $arg =~ m/[^\(]+\(\s*\*\s*([\w\[\]\.]*?)\s*(\s*\[\s*[\w]+\s*\]\s*)*\)/;
 | |
|             $param = $1;
 | |
|             $type = $arg;
 | |
|             $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
 | |
|             save_struct_actual($param);
 | |
|             push_parameter($param, $type, $arg, $file, $declaration_name);
 | |
|         } elsif ($arg) {
 | |
|             $arg =~ s/\s*:\s*/:/g;
 | |
|             $arg =~ s/\s*\[/\[/g;
 | |
| 
 | |
|             my @args = split('\s*,\s*', $arg);
 | |
|             if ($args[0] =~ m/\*/) {
 | |
|                 $args[0] =~ s/(\*+)\s*/ $1/;
 | |
|             }
 | |
| 
 | |
|             my @first_arg;
 | |
|             if ($args[0] =~ /^(.*\s+)(.*?\[.*\].*)$/) {
 | |
|                 shift @args;
 | |
|                 push(@first_arg, split('\s+', $1));
 | |
|                 push(@first_arg, $2);
 | |
|             } else {
 | |
|                 @first_arg = split('\s+', shift @args);
 | |
|             }
 | |
| 
 | |
|             unshift(@args, pop @first_arg);
 | |
|             $type = join " ", @first_arg;
 | |
| 
 | |
|             foreach $param (@args) {
 | |
|                 if ($param =~ m/^(\*+)\s*(.*)/) {
 | |
|                     save_struct_actual($2);
 | |
| 
 | |
|                     push_parameter($2, "$type $1", $arg, $file, $declaration_name);
 | |
|                 } elsif ($param =~ m/(.*?):(\w+)/) {
 | |
|                     if ($type ne "") { # skip unnamed bit-fields
 | |
|                         save_struct_actual($1);
 | |
|                         push_parameter($1, "$type:$2", $arg, $file, $declaration_name)
 | |
|                     }
 | |
|                 } else {
 | |
|                     save_struct_actual($param);
 | |
|                     push_parameter($param, $type, $arg, $file, $declaration_name);
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| sub push_parameter($$$$$) {
 | |
|     my $param = shift;
 | |
|     my $type = shift;
 | |
|     my $org_arg = shift;
 | |
|     my $file = shift;
 | |
|     my $declaration_name = shift;
 | |
| 
 | |
|     if (($anon_struct_union == 1) && ($type eq "") &&
 | |
|         ($param eq "}")) {
 | |
|         return;        # ignore the ending }; from anon. struct/union
 | |
|     }
 | |
| 
 | |
|     $anon_struct_union = 0;
 | |
|     $param =~ s/[\[\)].*//;
 | |
| 
 | |
|     if ($type eq "" && $param =~ /\.\.\.$/)
 | |
|     {
 | |
|         if (!$param =~ /\w\.\.\.$/) {
 | |
|             # handles unnamed variable parameters
 | |
|             $param = "...";
 | |
|         } elsif ($param =~ /\w\.\.\.$/) {
 | |
|             # for named variable parameters of the form `x...`, remove the dots
 | |
|             $param =~ s/\.\.\.$//;
 | |
|         }
 | |
|         if (!defined $parameterdescs{$param} || $parameterdescs{$param} eq "") {
 | |
|             $parameterdescs{$param} = "variable arguments";
 | |
|         }
 | |
|     }
 | |
|     elsif ($type eq "" && ($param eq "" or $param eq "void"))
 | |
|     {
 | |
|         $param="void";
 | |
|         $parameterdescs{void} = "no arguments";
 | |
|     }
 | |
|     elsif ($type eq "" && ($param eq "struct" or $param eq "union"))
 | |
|     # handle unnamed (anonymous) union or struct:
 | |
|     {
 | |
|         $type = $param;
 | |
|         $param = "{unnamed_" . $param . "}";
 | |
|         $parameterdescs{$param} = "anonymous\n";
 | |
|         $anon_struct_union = 1;
 | |
|     }
 | |
|     elsif ($param =~ "__cacheline_group" )
 | |
|     # handle cache group enforcing variables: they do not need be described in header files
 | |
|     {
 | |
|         return; # ignore __cacheline_group_begin and __cacheline_group_end
 | |
|     }
 | |
| 
 | |
|     # warn if parameter has no description
 | |
|     # (but ignore ones starting with # as these are not parameters
 | |
|     # but inline preprocessor statements);
 | |
|     # Note: It will also ignore void params and unnamed structs/unions
 | |
|     if (!defined $parameterdescs{$param} && $param !~ /^#/) {
 | |
|         $parameterdescs{$param} = $undescribed;
 | |
| 
 | |
|         if (show_warnings($type, $declaration_name) && $param !~ /\./) {
 | |
|             emit_warning("${file}:$.", "Function parameter or struct member '$param' not described in '$declaration_name'\n");
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     # strip spaces from $param so that it is one continuous string
 | |
|     # on @parameterlist;
 | |
|     # this fixes a problem where check_sections() cannot find
 | |
|     # a parameter like "addr[6 + 2]" because it actually appears
 | |
|     # as "addr[6", "+", "2]" on the parameter list;
 | |
|     # but it's better to maintain the param string unchanged for output,
 | |
|     # so just weaken the string compare in check_sections() to ignore
 | |
|     # "[blah" in a parameter string;
 | |
|     ###$param =~ s/\s*//g;
 | |
|     push @parameterlist, $param;
 | |
|     $org_arg =~ s/\s\s+/ /g;
 | |
|     $parametertypes{$param} = $org_arg;
 | |
| }
 | |
| 
 | |
| sub check_sections($$$$$) {
 | |
|     my ($file, $decl_name, $decl_type, $sectcheck, $prmscheck) = @_;
 | |
|     my @sects = split ' ', $sectcheck;
 | |
|     my @prms = split ' ', $prmscheck;
 | |
|     my $err;
 | |
|     my ($px, $sx);
 | |
|     my $prm_clean;        # strip trailing "[array size]" and/or beginning "*"
 | |
| 
 | |
|     foreach $sx (0 .. $#sects) {
 | |
|         $err = 1;
 | |
|         foreach $px (0 .. $#prms) {
 | |
|             $prm_clean = $prms[$px];
 | |
|             $prm_clean =~ s/\[.*\]//;
 | |
|             $prm_clean =~ s/$attribute//i;
 | |
|             # ignore array size in a parameter string;
 | |
|             # however, the original param string may contain
 | |
|             # spaces, e.g.:  addr[6 + 2]
 | |
|             # and this appears in @prms as "addr[6" since the
 | |
|             # parameter list is split at spaces;
 | |
|             # hence just ignore "[..." for the sections check;
 | |
|             $prm_clean =~ s/\[.*//;
 | |
| 
 | |
|             ##$prm_clean =~ s/^\**//;
 | |
|             if ($prm_clean eq $sects[$sx]) {
 | |
|                 $err = 0;
 | |
|                 last;
 | |
|             }
 | |
|         }
 | |
|         if ($err) {
 | |
|             if ($decl_type eq "function") {
 | |
|                 emit_warning("${file}:$.",
 | |
|                     "Excess function parameter " .
 | |
|                     "'$sects[$sx]' " .
 | |
|                     "description in '$decl_name'\n");
 | |
|             } elsif (($decl_type eq "struct") or
 | |
|                           ($decl_type eq "union")) {
 | |
|                 emit_warning("${file}:$.",
 | |
|                     "Excess $decl_type member " .
 | |
|                     "'$sects[$sx]' " .
 | |
|                     "description in '$decl_name'\n");
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| ##
 | |
| # Checks the section describing the return value of a function.
 | |
| sub check_return_section {
 | |
|     my $file = shift;
 | |
|     my $declaration_name = shift;
 | |
|     my $return_type = shift;
 | |
| 
 | |
|     # Ignore an empty return type (It's a macro)
 | |
|     # Ignore functions with a "void" return type. (But don't ignore "void *")
 | |
|     if (($return_type eq "") || ($return_type =~ /void\s*\w*\s*$/)) {
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     if (!defined($sections{$section_return}) ||
 | |
|         $sections{$section_return} eq "")
 | |
|     {
 | |
|         emit_warning("${file}:$.",
 | |
|                      "No description found for return value of " .
 | |
|                      "'$declaration_name'\n");
 | |
|     }
 | |
| }
 | |
| 
 | |
| ##
 | |
| # takes a function prototype and the name of the current file being
 | |
| # processed and spits out all the details stored in the global
 | |
| # arrays/hashes.
 | |
| sub dump_function($$) {
 | |
|     my $prototype = shift;
 | |
|     my $file = shift;
 | |
|     my $func_macro = 0;
 | |
| 
 | |
|     print_lineno($new_start_line);
 | |
| 
 | |
|     $prototype =~ s/^static +//;
 | |
|     $prototype =~ s/^extern +//;
 | |
|     $prototype =~ s/^asmlinkage +//;
 | |
|     $prototype =~ s/^inline +//;
 | |
|     $prototype =~ s/^__inline__ +//;
 | |
|     $prototype =~ s/^__inline +//;
 | |
|     $prototype =~ s/^__always_inline +//;
 | |
|     $prototype =~ s/^noinline +//;
 | |
|     $prototype =~ s/^__FORTIFY_INLINE +//;
 | |
|     $prototype =~ s/__init +//;
 | |
|     $prototype =~ s/__init_or_module +//;
 | |
|     $prototype =~ s/__deprecated +//;
 | |
|     $prototype =~ s/__flatten +//;
 | |
|     $prototype =~ s/__meminit +//;
 | |
|     $prototype =~ s/__must_check +//;
 | |
|     $prototype =~ s/__weak +//;
 | |
|     $prototype =~ s/__sched +//;
 | |
|     $prototype =~ s/_noprof//;
 | |
|     $prototype =~ s/__printf\s*\(\s*\d*\s*,\s*\d*\s*\) +//;
 | |
|     $prototype =~ s/__(?:re)?alloc_size\s*\(\s*\d+\s*(?:,\s*\d+\s*)?\) +//;
 | |
|     $prototype =~ s/__diagnose_as\s*\(\s*\S+\s*(?:,\s*\d+\s*)*\) +//;
 | |
|     $prototype =~ s/DECL_BUCKET_PARAMS\s*\(\s*(\S+)\s*,\s*(\S+)\s*\)/$1, $2/;
 | |
|     my $define = $prototype =~ s/^#\s*define\s+//; #ak added
 | |
|     $prototype =~ s/__attribute_const__ +//;
 | |
|     $prototype =~ s/__attribute__\s*\(\(
 | |
|             (?:
 | |
|                  [\w\s]++          # attribute name
 | |
|                  (?:\([^)]*+\))?   # attribute arguments
 | |
|                  \s*+,?            # optional comma at the end
 | |
|             )+
 | |
|           \)\)\s+//x;
 | |
| 
 | |
|     # Yes, this truly is vile.  We are looking for:
 | |
|     # 1. Return type (may be nothing if we're looking at a macro)
 | |
|     # 2. Function name
 | |
|     # 3. Function parameters.
 | |
|     #
 | |
|     # All the while we have to watch out for function pointer parameters
 | |
|     # (which IIRC is what the two sections are for), C types (these
 | |
|     # regexps don't even start to express all the possibilities), and
 | |
|     # so on.
 | |
|     #
 | |
|     # If you mess with these regexps, it's a good idea to check that
 | |
|     # the following functions' documentation still comes out right:
 | |
|     # - parport_register_device (function pointer parameters)
 | |
|     # - atomic_set (macro)
 | |
|     # - pci_match_device, __copy_to_user (long return type)
 | |
|     my $name = qr{[a-zA-Z0-9_~:]+};
 | |
|     my $prototype_end1 = qr{[^\(]*};
 | |
|     my $prototype_end2 = qr{[^\{]*};
 | |
|     my $prototype_end = qr{\(($prototype_end1|$prototype_end2)\)};
 | |
|     my $type1 = qr{[\w\s]+};
 | |
|     my $type2 = qr{$type1\*+};
 | |
| 
 | |
|     if ($define && $prototype =~ m/^()($name)\s+/) {
 | |
|         # This is an object-like macro, it has no return type and no parameter
 | |
|         # list.
 | |
|         # Function-like macros are not allowed to have spaces between
 | |
|         # declaration_name and opening parenthesis (notice the \s+).
 | |
|         $return_type = $1;
 | |
|         $declaration_name = $2;
 | |
|         $func_macro = 1;
 | |
|     } elsif ($prototype =~ m/^()($name)\s*$prototype_end/ ||
 | |
|         $prototype =~ m/^($type1)\s+($name)\s*$prototype_end/ ||
 | |
|         $prototype =~ m/^($type2+)\s*($name)\s*$prototype_end/)  {
 | |
|         $return_type = $1;
 | |
|         $declaration_name = $2;
 | |
|         my $args = $3;
 | |
| 
 | |
|         create_parameterlist($args, ',', $file, $declaration_name);
 | |
|     } else {
 | |
|         emit_warning("${file}:$.", "cannot understand function prototype: '$prototype'\n");
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     if ($identifier ne $declaration_name) {
 | |
|         emit_warning("${file}:$.", "expecting prototype for $identifier(). Prototype was for $declaration_name() instead\n");
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     my $prms = join " ", @parameterlist;
 | |
|     check_sections($file, $declaration_name, "function", $sectcheck, $prms);
 | |
| 
 | |
|     # This check emits a lot of warnings at the moment, because many
 | |
|     # functions don't have a 'Return' doc section. So until the number
 | |
|     # of warnings goes sufficiently down, the check is only performed in
 | |
|     # -Wreturn mode.
 | |
|     # TODO: always perform the check.
 | |
|     if ($Wreturn && !$func_macro) {
 | |
|         check_return_section($file, $declaration_name, $return_type);
 | |
|     }
 | |
| 
 | |
|     # The function parser can be called with a typedef parameter.
 | |
|     # Handle it.
 | |
|     if ($return_type =~ /typedef/) {
 | |
|         output_declaration($declaration_name,
 | |
|                            'function',
 | |
|                            {'function' => $declaration_name,
 | |
|                             'typedef' => 1,
 | |
|                             'module' => $modulename,
 | |
|                             'functiontype' => $return_type,
 | |
|                             'parameterlist' => \@parameterlist,
 | |
|                             'parameterdescs' => \%parameterdescs,
 | |
|                             'parametertypes' => \%parametertypes,
 | |
|                             'sectionlist' => \@sectionlist,
 | |
|                             'sections' => \%sections,
 | |
|                             'purpose' => $declaration_purpose,
 | |
| 							'func_macro' => $func_macro
 | |
|                            });
 | |
|     } else {
 | |
|         output_declaration($declaration_name,
 | |
|                            'function',
 | |
|                            {'function' => $declaration_name,
 | |
|                             'module' => $modulename,
 | |
|                             'functiontype' => $return_type,
 | |
|                             'parameterlist' => \@parameterlist,
 | |
|                             'parameterdescs' => \%parameterdescs,
 | |
|                             'parametertypes' => \%parametertypes,
 | |
|                             'sectionlist' => \@sectionlist,
 | |
|                             'sections' => \%sections,
 | |
|                             'purpose' => $declaration_purpose,
 | |
| 							'func_macro' => $func_macro
 | |
|                            });
 | |
|     }
 | |
| }
 | |
| 
 | |
| sub reset_state {
 | |
|     $function = "";
 | |
|     %parameterdescs = ();
 | |
|     %parametertypes = ();
 | |
|     @parameterlist = ();
 | |
|     %sections = ();
 | |
|     @sectionlist = ();
 | |
|     $sectcheck = "";
 | |
|     $struct_actual = "";
 | |
|     $prototype = "";
 | |
| 
 | |
|     $state = STATE_NORMAL;
 | |
|     $inline_doc_state = STATE_INLINE_NA;
 | |
| }
 | |
| 
 | |
| sub tracepoint_munge($) {
 | |
|     my $file = shift;
 | |
|     my $tracepointname = 0;
 | |
|     my $tracepointargs = 0;
 | |
| 
 | |
|     if ($prototype =~ m/TRACE_EVENT\((.*?),/) {
 | |
|         $tracepointname = $1;
 | |
|     }
 | |
|     if ($prototype =~ m/DEFINE_SINGLE_EVENT\((.*?),/) {
 | |
|         $tracepointname = $1;
 | |
|     }
 | |
|     if ($prototype =~ m/DEFINE_EVENT\((.*?),(.*?),/) {
 | |
|         $tracepointname = $2;
 | |
|     }
 | |
|     $tracepointname =~ s/^\s+//; #strip leading whitespace
 | |
|     if ($prototype =~ m/TP_PROTO\((.*?)\)/) {
 | |
|         $tracepointargs = $1;
 | |
|     }
 | |
|     if (($tracepointname eq 0) || ($tracepointargs eq 0)) {
 | |
|         emit_warning("${file}:$.", "Unrecognized tracepoint format: \n".
 | |
|                  "$prototype\n");
 | |
|     } else {
 | |
|         $prototype = "static inline void trace_$tracepointname($tracepointargs)";
 | |
|         $identifier = "trace_$identifier";
 | |
|     }
 | |
| }
 | |
| 
 | |
| sub syscall_munge() {
 | |
|     my $void = 0;
 | |
| 
 | |
|     $prototype =~ s@[\r\n]+@ @gos; # strip newlines/CR's
 | |
| ##    if ($prototype =~ m/SYSCALL_DEFINE0\s*\(\s*(a-zA-Z0-9_)*\s*\)/) {
 | |
|     if ($prototype =~ m/SYSCALL_DEFINE0/) {
 | |
|         $void = 1;
 | |
| ##        $prototype = "long sys_$1(void)";
 | |
|     }
 | |
| 
 | |
|     $prototype =~ s/SYSCALL_DEFINE.*\(/long sys_/; # fix return type & func name
 | |
|     if ($prototype =~ m/long (sys_.*?),/) {
 | |
|         $prototype =~ s/,/\(/;
 | |
|     } elsif ($void) {
 | |
|         $prototype =~ s/\)/\(void\)/;
 | |
|     }
 | |
| 
 | |
|     # now delete all of the odd-number commas in $prototype
 | |
|     # so that arg types & arg names don't have a comma between them
 | |
|     my $count = 0;
 | |
|     my $len = length($prototype);
 | |
|     if ($void) {
 | |
|         $len = 0;    # skip the for-loop
 | |
|     }
 | |
|     for (my $ix = 0; $ix < $len; $ix++) {
 | |
|         if (substr($prototype, $ix, 1) eq ',') {
 | |
|             $count++;
 | |
|             if ($count % 2 == 1) {
 | |
|                 substr($prototype, $ix, 1) = ' ';
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| sub process_proto_function($$) {
 | |
|     my $x = shift;
 | |
|     my $file = shift;
 | |
| 
 | |
|     $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
 | |
| 
 | |
|     if ($x =~ /^#/ && $x !~ /^#\s*define/) {
 | |
|         # do nothing
 | |
|     } elsif ($x =~ /([^\{]*)/) {
 | |
|         $prototype .= $1;
 | |
|     }
 | |
| 
 | |
|     if (($x =~ /\{/) || ($x =~ /\#\s*define/) || ($x =~ /;/)) {
 | |
|         $prototype =~ s@/\*.*?\*/@@gos;        # strip comments.
 | |
|         $prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
 | |
|         $prototype =~ s@^\s+@@gos; # strip leading spaces
 | |
| 
 | |
|         # Handle prototypes for function pointers like:
 | |
|         # int (*pcs_config)(struct foo)
 | |
|         $prototype =~ s@^(\S+\s+)\(\s*\*(\S+)\)@$1$2@gos;
 | |
| 
 | |
|         if ($prototype =~ /SYSCALL_DEFINE/) {
 | |
|             syscall_munge();
 | |
|         }
 | |
|         if ($prototype =~ /TRACE_EVENT/ || $prototype =~ /DEFINE_EVENT/ ||
 | |
|             $prototype =~ /DEFINE_SINGLE_EVENT/)
 | |
|         {
 | |
|             tracepoint_munge($file);
 | |
|         }
 | |
|         dump_function($prototype, $file);
 | |
|         reset_state();
 | |
|     }
 | |
| }
 | |
| 
 | |
| sub process_proto_type($$) {
 | |
|     my $x = shift;
 | |
|     my $file = shift;
 | |
| 
 | |
|     $x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
 | |
|     $x =~ s@^\s+@@gos; # strip leading spaces
 | |
|     $x =~ s@\s+$@@gos; # strip trailing spaces
 | |
|     $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
 | |
| 
 | |
|     if ($x =~ /^#/) {
 | |
|         # To distinguish preprocessor directive from regular declaration later.
 | |
|         $x .= ";";
 | |
|     }
 | |
| 
 | |
|     while (1) {
 | |
|         if ( $x =~ /([^\{\};]*)([\{\};])(.*)/ ) {
 | |
|             if( length $prototype ) {
 | |
|                 $prototype .= " "
 | |
|             }
 | |
|             $prototype .= $1 . $2;
 | |
|             ($2 eq '{') && $brcount++;
 | |
|             ($2 eq '}') && $brcount--;
 | |
|             if (($2 eq ';') && ($brcount == 0)) {
 | |
|                 dump_declaration($prototype, $file);
 | |
|                 reset_state();
 | |
|                 last;
 | |
|             }
 | |
|             $x = $3;
 | |
|         } else {
 | |
|             $prototype .= $x;
 | |
|             last;
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| 
 | |
| sub map_filename($) {
 | |
|     my $file;
 | |
|     my ($orig_file) = @_;
 | |
| 
 | |
|     if (defined($ENV{'SRCTREE'})) {
 | |
|         $file = "$ENV{'SRCTREE'}" . "/" . $orig_file;
 | |
|     } else {
 | |
|         $file = $orig_file;
 | |
|     }
 | |
| 
 | |
|     if (defined($source_map{$file})) {
 | |
|         $file = $source_map{$file};
 | |
|     }
 | |
| 
 | |
|     return $file;
 | |
| }
 | |
| 
 | |
| sub process_export_file($) {
 | |
|     my ($orig_file) = @_;
 | |
|     my $file = map_filename($orig_file);
 | |
| 
 | |
|     if (!open(IN,"<$file")) {
 | |
|         print STDERR "Error: Cannot open file $file\n";
 | |
|         ++$errors;
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     while (<IN>) {
 | |
|         if (/$export_symbol/) {
 | |
|             next if (defined($nosymbol_table{$2}));
 | |
|             $function_table{$2} = 1;
 | |
|         }
 | |
|         if (/$export_symbol_ns/) {
 | |
|             next if (defined($nosymbol_table{$2}));
 | |
|             $function_table{$2} = 1;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     close(IN);
 | |
| }
 | |
| 
 | |
| #
 | |
| # Parsers for the various processing states.
 | |
| #
 | |
| # STATE_NORMAL: looking for the /** to begin everything.
 | |
| #
 | |
| sub process_normal() {
 | |
|     if (/$doc_start/o) {
 | |
|         $state = STATE_NAME;        # next line is always the function name
 | |
|         $in_doc_sect = 0;
 | |
|         $declaration_start_line = $. + 1;
 | |
|     }
 | |
| }
 | |
| 
 | |
| #
 | |
| # STATE_NAME: Looking for the "name - description" line
 | |
| #
 | |
| sub process_name($$) {
 | |
|     my $file = shift;
 | |
|     my $descr;
 | |
| 
 | |
|     if (/$doc_block/o) {
 | |
|         $state = STATE_DOCBLOCK;
 | |
|         $contents = "";
 | |
|         $new_start_line = $.;
 | |
| 
 | |
|         if ( $1 eq "" ) {
 | |
|             $section = $section_intro;
 | |
|         } else {
 | |
|             $section = $1;
 | |
|         }
 | |
|     } elsif (/$doc_decl/o) {
 | |
|         $identifier = $1;
 | |
|         my $is_kernel_comment = 0;
 | |
|         my $decl_start = qr{$doc_com};
 | |
|         # test for pointer declaration type, foo * bar() - desc
 | |
|         my $fn_type = qr{\w+\s*\*\s*};
 | |
|         my $parenthesis = qr{\(\w*\)};
 | |
|         my $decl_end = qr{[-:].*};
 | |
|         if (/^$decl_start([\w\s]+?)$parenthesis?\s*$decl_end?$/) {
 | |
|             $identifier = $1;
 | |
|         }
 | |
|         if ($identifier =~ m/^(struct|union|enum|typedef)\b\s*(\S*)/) {
 | |
|             $decl_type = $1;
 | |
|             $identifier = $2;
 | |
|             $is_kernel_comment = 1;
 | |
|         }
 | |
|         # Look for foo() or static void foo() - description; or misspelt
 | |
|         # identifier
 | |
|         elsif (/^$decl_start$fn_type?(\w+)\s*$parenthesis?\s*$decl_end?$/ ||
 | |
|             /^$decl_start$fn_type?(\w+[^-:]*)$parenthesis?\s*$decl_end$/) {
 | |
|             $identifier = $1;
 | |
|             $decl_type = 'function';
 | |
|             $identifier =~ s/^define\s+//;
 | |
|             $is_kernel_comment = 1;
 | |
|         }
 | |
|         $identifier =~ s/\s+$//;
 | |
| 
 | |
|         $state = STATE_BODY;
 | |
|         # if there's no @param blocks need to set up default section
 | |
|         # here
 | |
|         $contents = "";
 | |
|         $section = $section_default;
 | |
|         $new_start_line = $. + 1;
 | |
|         if (/[-:](.*)/) {
 | |
|             # strip leading/trailing/multiple spaces
 | |
|             $descr= $1;
 | |
|             $descr =~ s/^\s*//;
 | |
|             $descr =~ s/\s*$//;
 | |
|             $descr =~ s/\s+/ /g;
 | |
|             $declaration_purpose = $descr;
 | |
|             $state = STATE_BODY_MAYBE;
 | |
|         } else {
 | |
|             $declaration_purpose = "";
 | |
|         }
 | |
| 
 | |
|         if (!$is_kernel_comment) {
 | |
|             emit_warning("${file}:$.", "This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst\n$_");
 | |
|             $state = STATE_NORMAL;
 | |
|         }
 | |
| 
 | |
|         if (($declaration_purpose eq "") && $Wshort_desc) {
 | |
|             emit_warning("${file}:$.", "missing initial short description on line:\n$_");
 | |
|         }
 | |
| 
 | |
|         if ($identifier eq "" && $decl_type ne "enum") {
 | |
|             emit_warning("${file}:$.", "wrong kernel-doc identifier on line:\n$_");
 | |
|             $state = STATE_NORMAL;
 | |
|         }
 | |
| 
 | |
|         if ($verbose) {
 | |
|             print STDERR "${file}:$.: info: Scanning doc for $decl_type $identifier\n";
 | |
|         }
 | |
|     } else {
 | |
|         emit_warning("${file}:$.", "Cannot understand $_ on line $. - I thought it was a doc line\n");
 | |
|         $state = STATE_NORMAL;
 | |
|     }
 | |
| }
 | |
| 
 | |
| 
 | |
| #
 | |
| # STATE_BODY and STATE_BODY_MAYBE: the bulk of a kerneldoc comment.
 | |
| #
 | |
| sub process_body($$) {
 | |
|     my $file = shift;
 | |
| 
 | |
|     if ($state == STATE_BODY_WITH_BLANK_LINE && /^\s*\*\s?\S/) {
 | |
|         dump_section($file, $section, $contents);
 | |
|         $section = $section_default;
 | |
|         $new_start_line = $.;
 | |
|         $contents = "";
 | |
|     }
 | |
| 
 | |
|     if (/$doc_sect/i) { # case insensitive for supported section names
 | |
|         $in_doc_sect = 1;
 | |
|         $newsection = $1;
 | |
|         $newcontents = $2;
 | |
| 
 | |
|         # map the supported section names to the canonical names
 | |
|         if ($newsection =~ m/^description$/i) {
 | |
|             $newsection = $section_default;
 | |
|         } elsif ($newsection =~ m/^context$/i) {
 | |
|             $newsection = $section_context;
 | |
|         } elsif ($newsection =~ m/^returns?$/i) {
 | |
|             $newsection = $section_return;
 | |
|         } elsif ($newsection =~ m/^\@return$/) {
 | |
|             # special: @return is a section, not a param description
 | |
|             $newsection = $section_return;
 | |
|         }
 | |
| 
 | |
|         if (($contents ne "") && ($contents ne "\n")) {
 | |
|             if (!$in_doc_sect && $Wcontents_before_sections) {
 | |
|                 emit_warning("${file}:$.", "contents before sections\n");
 | |
|             }
 | |
|             dump_section($file, $section, $contents);
 | |
|             $section = $section_default;
 | |
|         }
 | |
| 
 | |
|         $in_doc_sect = 1;
 | |
|         $state = STATE_BODY;
 | |
|         $contents = $newcontents;
 | |
|         $new_start_line = $.;
 | |
|         while (substr($contents, 0, 1) eq " ") {
 | |
|             $contents = substr($contents, 1);
 | |
|         }
 | |
|         if ($contents ne "") {
 | |
|             $contents .= "\n";
 | |
|         }
 | |
|         $section = $newsection;
 | |
|         $leading_space = undef;
 | |
|     } elsif (/$doc_end/) {
 | |
|         if (($contents ne "") && ($contents ne "\n")) {
 | |
|             dump_section($file, $section, $contents);
 | |
|             $section = $section_default;
 | |
|             $contents = "";
 | |
|         }
 | |
|         # look for doc_com + <text> + doc_end:
 | |
|         if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
 | |
|             emit_warning("${file}:$.", "suspicious ending line: $_");
 | |
|         }
 | |
| 
 | |
|         $prototype = "";
 | |
|         $state = STATE_PROTO;
 | |
|         $brcount = 0;
 | |
|         $new_start_line = $. + 1;
 | |
|     } elsif (/$doc_content/) {
 | |
|         if ($1 eq "") {
 | |
|             if ($section eq $section_context) {
 | |
|                 dump_section($file, $section, $contents);
 | |
|                 $section = $section_default;
 | |
|                 $contents = "";
 | |
|                 $new_start_line = $.;
 | |
|                 $state = STATE_BODY;
 | |
|             } else {
 | |
|                 if ($section ne $section_default) {
 | |
|                     $state = STATE_BODY_WITH_BLANK_LINE;
 | |
|                 } else {
 | |
|                     $state = STATE_BODY;
 | |
|                 }
 | |
|                 $contents .= "\n";
 | |
|             }
 | |
|         } elsif ($state == STATE_BODY_MAYBE) {
 | |
|             # Continued declaration purpose
 | |
|             chomp($declaration_purpose);
 | |
|             $declaration_purpose .= " " . $1;
 | |
|             $declaration_purpose =~ s/\s+/ /g;
 | |
|         } else {
 | |
|             my $cont = $1;
 | |
|             if ($section =~ m/^@/ || $section eq $section_context) {
 | |
|                 if (!defined $leading_space) {
 | |
|                     if ($cont =~ m/^(\s+)/) {
 | |
|                         $leading_space = $1;
 | |
|                     } else {
 | |
|                         $leading_space = "";
 | |
|                     }
 | |
|                 }
 | |
|                 $cont =~ s/^$leading_space//;
 | |
|             }
 | |
|             $contents .= $cont . "\n";
 | |
|         }
 | |
|     } else {
 | |
|         # i dont know - bad line?  ignore.
 | |
|         emit_warning("${file}:$.", "bad line: $_");
 | |
|     }
 | |
| }
 | |
| 
 | |
| 
 | |
| #
 | |
| # STATE_PROTO: reading a function/whatever prototype.
 | |
| #
 | |
| sub process_proto($$) {
 | |
|     my $file = shift;
 | |
| 
 | |
|     if (/$doc_inline_oneline/) {
 | |
|         $section = $1;
 | |
|         $contents = $2;
 | |
|         if ($contents ne "") {
 | |
|             $contents .= "\n";
 | |
|             dump_section($file, $section, $contents);
 | |
|             $section = $section_default;
 | |
|             $contents = "";
 | |
|         }
 | |
|     } elsif (/$doc_inline_start/) {
 | |
|         $state = STATE_INLINE;
 | |
|         $inline_doc_state = STATE_INLINE_NAME;
 | |
|     } elsif ($decl_type eq 'function') {
 | |
|         process_proto_function($_, $file);
 | |
|     } else {
 | |
|         process_proto_type($_, $file);
 | |
|     }
 | |
| }
 | |
| 
 | |
| #
 | |
| # STATE_DOCBLOCK: within a DOC: block.
 | |
| #
 | |
| sub process_docblock($$) {
 | |
|     my $file = shift;
 | |
| 
 | |
|     if (/$doc_end/) {
 | |
|         dump_doc_section($file, $section, $contents);
 | |
|         $section = $section_default;
 | |
|         $contents = "";
 | |
|         $function = "";
 | |
|         %parameterdescs = ();
 | |
|         %parametertypes = ();
 | |
|         @parameterlist = ();
 | |
|         %sections = ();
 | |
|         @sectionlist = ();
 | |
|         $prototype = "";
 | |
|         $state = STATE_NORMAL;
 | |
|     } elsif (/$doc_content/) {
 | |
|         if ( $1 eq "" )        {
 | |
|             $contents .= $blankline;
 | |
|         } else {
 | |
|             $contents .= $1 . "\n";
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| #
 | |
| # STATE_INLINE: docbook comments within a prototype.
 | |
| #
 | |
| sub process_inline($$) {
 | |
|     my $file = shift;
 | |
| 
 | |
|     # First line (state 1) needs to be a @parameter
 | |
|     if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
 | |
|         $section = $1;
 | |
|         $contents = $2;
 | |
|         $new_start_line = $.;
 | |
|         if ($contents ne "") {
 | |
|             while (substr($contents, 0, 1) eq " ") {
 | |
|                 $contents = substr($contents, 1);
 | |
|             }
 | |
|             $contents .= "\n";
 | |
|         }
 | |
|         $inline_doc_state = STATE_INLINE_TEXT;
 | |
|         # Documentation block end */
 | |
|     } elsif (/$doc_inline_end/) {
 | |
|         if (($contents ne "") && ($contents ne "\n")) {
 | |
|             dump_section($file, $section, $contents);
 | |
|             $section = $section_default;
 | |
|             $contents = "";
 | |
|         }
 | |
|         $state = STATE_PROTO;
 | |
|         $inline_doc_state = STATE_INLINE_NA;
 | |
|         # Regular text
 | |
|     } elsif (/$doc_content/) {
 | |
|         if ($inline_doc_state == STATE_INLINE_TEXT) {
 | |
|             $contents .= $1 . "\n";
 | |
|             # nuke leading blank lines
 | |
|             if ($contents =~ /^\s*$/) {
 | |
|                 $contents = "";
 | |
|             }
 | |
|         } elsif ($inline_doc_state == STATE_INLINE_NAME) {
 | |
|             $inline_doc_state = STATE_INLINE_ERROR;
 | |
|             emit_warning("${file}:$.", "Incorrect use of kernel-doc format: $_");
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| 
 | |
| sub process_file($) {
 | |
|     my $file;
 | |
|     my ($orig_file) = @_;
 | |
| 
 | |
|     $file = map_filename($orig_file);
 | |
| 
 | |
|     if (!open(IN_FILE,"<$file")) {
 | |
|         print STDERR "Error: Cannot open file $file\n";
 | |
|         ++$errors;
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     $. = 1;
 | |
| 
 | |
|     $section_counter = 0;
 | |
|     while (<IN_FILE>) {
 | |
|         while (!/^ \*/ && s/\\\s*$//) {
 | |
|             $_ .= <IN_FILE>;
 | |
|         }
 | |
|         # Replace tabs by spaces
 | |
|         while ($_ =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {};
 | |
|         # Hand this line to the appropriate state handler
 | |
|         if ($state == STATE_NORMAL) {
 | |
|             process_normal();
 | |
|         } elsif ($state == STATE_NAME) {
 | |
|             process_name($file, $_);
 | |
|         } elsif ($state == STATE_BODY || $state == STATE_BODY_MAYBE ||
 | |
|                  $state == STATE_BODY_WITH_BLANK_LINE) {
 | |
|             process_body($file, $_);
 | |
|         } elsif ($state == STATE_INLINE) { # scanning for inline parameters
 | |
|             process_inline($file, $_);
 | |
|         } elsif ($state == STATE_PROTO) {
 | |
|             process_proto($file, $_);
 | |
|         } elsif ($state == STATE_DOCBLOCK) {
 | |
|             process_docblock($file, $_);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     # Make sure we got something interesting.
 | |
|     if (!$section_counter && $output_mode ne "none") {
 | |
|         if ($output_selection == OUTPUT_INCLUDE) {
 | |
|             emit_warning("${file}:1", "'$_' not found\n")
 | |
|                 for keys %function_table;
 | |
|         } else {
 | |
|             emit_warning("${file}:1", "no structured comments found\n");
 | |
|         }
 | |
|     }
 | |
|     close IN_FILE;
 | |
| }
 | |
| 
 | |
| 
 | |
| if ($output_mode eq "rst") {
 | |
|     get_sphinx_version() if (!$sphinx_major);
 | |
| }
 | |
| 
 | |
| $kernelversion = get_kernel_version();
 | |
| 
 | |
| # generate a sequence of code that will splice in highlighting information
 | |
| # using the s// operator.
 | |
| for (my $k = 0; $k < @highlights; $k++) {
 | |
|     my $pattern = $highlights[$k][0];
 | |
|     my $result = $highlights[$k][1];
 | |
| #   print STDERR "scanning pattern:$pattern, highlight:($result)\n";
 | |
|     $dohighlight .=  "\$contents =~ s:$pattern:$result:gs;\n";
 | |
| }
 | |
| 
 | |
| # Read the file that maps relative names to absolute names for
 | |
| # separate source and object directories and for shadow trees.
 | |
| if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
 | |
|     my ($relname, $absname);
 | |
|     while(<SOURCE_MAP>) {
 | |
|         chop();
 | |
|         ($relname, $absname) = (split())[0..1];
 | |
|         $relname =~ s:^/+::;
 | |
|         $source_map{$relname} = $absname;
 | |
|     }
 | |
|     close(SOURCE_MAP);
 | |
| }
 | |
| 
 | |
| if ($output_selection == OUTPUT_EXPORTED ||
 | |
|     $output_selection == OUTPUT_INTERNAL) {
 | |
| 
 | |
|     push(@export_file_list, @ARGV);
 | |
| 
 | |
|     foreach (@export_file_list) {
 | |
|         chomp;
 | |
|         process_export_file($_);
 | |
|     }
 | |
| }
 | |
| 
 | |
| foreach (@ARGV) {
 | |
|     chomp;
 | |
|     process_file($_);
 | |
| }
 | |
| if ($verbose && $errors) {
 | |
|     print STDERR "$errors errors\n";
 | |
| }
 | |
| if ($verbose && $warnings) {
 | |
|     print STDERR "$warnings warnings\n";
 | |
| }
 | |
| 
 | |
| if ($Werror && $warnings) {
 | |
|     print STDERR "$warnings warnings as Errors\n";
 | |
|     exit($warnings);
 | |
| } else {
 | |
|     exit($output_mode eq "none" ? 0 : $errors)
 | |
| }
 | |
| 
 | |
| __END__
 | |
| 
 | |
| =head1 OPTIONS
 | |
| 
 | |
| =head2 Output format selection (mutually exclusive):
 | |
| 
 | |
| =over 8
 | |
| 
 | |
| =item -man
 | |
| 
 | |
| Output troff manual page format.
 | |
| 
 | |
| =item -rst
 | |
| 
 | |
| Output reStructuredText format. This is the default.
 | |
| 
 | |
| =item -none
 | |
| 
 | |
| Do not output documentation, only warnings.
 | |
| 
 | |
| =back
 | |
| 
 | |
| =head2 Output format modifiers
 | |
| 
 | |
| =head3 reStructuredText only
 | |
| 
 | |
| =over 8
 | |
| 
 | |
| =item -sphinx-version VERSION
 | |
| 
 | |
| Use the ReST C domain dialect compatible with a specific Sphinx Version.
 | |
| 
 | |
| If not specified, kernel-doc will auto-detect using the sphinx-build version
 | |
| found on PATH.
 | |
| 
 | |
| =back
 | |
| 
 | |
| =head2 Output selection (mutually exclusive):
 | |
| 
 | |
| =over 8
 | |
| 
 | |
| =item -export
 | |
| 
 | |
| Only output documentation for the symbols that have been exported using
 | |
| EXPORT_SYMBOL() and related macros in any input FILE or -export-file FILE.
 | |
| 
 | |
| =item -internal
 | |
| 
 | |
| Only output documentation for the symbols that have NOT been exported using
 | |
| EXPORT_SYMBOL() and related macros in any input FILE or -export-file FILE.
 | |
| 
 | |
| =item -function NAME
 | |
| 
 | |
| Only output documentation for the given function or DOC: section title.
 | |
| All other functions and DOC: sections are ignored.
 | |
| 
 | |
| May be specified multiple times.
 | |
| 
 | |
| =item -nosymbol NAME
 | |
| 
 | |
| Exclude the specified symbol from the output documentation.
 | |
| 
 | |
| May be specified multiple times.
 | |
| 
 | |
| =back
 | |
| 
 | |
| =head2 Output selection modifiers:
 | |
| 
 | |
| =over 8
 | |
| 
 | |
| =item -no-doc-sections
 | |
| 
 | |
| Do not output DOC: sections.
 | |
| 
 | |
| =item -export-file FILE
 | |
| 
 | |
| Specify an additional FILE in which to look for EXPORT_SYMBOL information.
 | |
| 
 | |
| To be used with -export or -internal.
 | |
| 
 | |
| May be specified multiple times.
 | |
| 
 | |
| =back
 | |
| 
 | |
| =head3 reStructuredText only
 | |
| 
 | |
| =over 8
 | |
| 
 | |
| =item -enable-lineno
 | |
| 
 | |
| Enable output of .. LINENO lines.
 | |
| 
 | |
| =back
 | |
| 
 | |
| =head2 Other parameters:
 | |
| 
 | |
| =over 8
 | |
| 
 | |
| =item -h, -help
 | |
| 
 | |
| Print this help.
 | |
| 
 | |
| =item -v
 | |
| 
 | |
| Verbose output, more warnings and other information.
 | |
| 
 | |
| =item -Werror
 | |
| 
 | |
| Treat warnings as errors.
 | |
| 
 | |
| =back
 | |
| 
 | |
| =cut
 |