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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-23 12:43:55 +08:00
linux-next/scripts/kernel-doc
Randy Dunlap 8484baaa50 kernel-doc: code reorganization
Move 'main' code vs. subroutines around so that they are not so
intermixed, for better readability/understanding (relative to Perl).
It was messy to follow the primary flow of code execution with the
code being mixed.  Now the code begins with data initialization,
followed by all subroutines, then ends with the main code execution.

This is almost totally source code movement, with a few changes as
needed for forward declarations.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-06 09:59:38 -08:00

2294 lines
62 KiB
Perl
Executable File

#!/usr/bin/perl -w
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) 2005-2010 Randy Dunlap ##
## ##
## #define enhancements by Armin Kuster <akuster@mvista.com> ##
## Copyright (c) 2000 MontaVista Software, Inc. ##
## ##
## This software falls under the GNU General Public License. ##
## Please read the COPYING file for more information ##
# 18/01/2001 - Cleanups
# Functions prototyped as foo(void) same as foo()
# Stop eval'ing where we don't need to.
# -- huggie@earth.li
# 27/06/2001 - Allowed whitespace after initial "/**" and
# allowed comments before function declarations.
# -- Christian Kreibich <ck@whoop.org>
# Still to do:
# - add perldoc documentation
# - Look more closely at some of the scarier bits :)
# 26/05/2001 - Support for separate source and object trees.
# Return error code.
# Keith Owens <kaos@ocs.com.au>
# 23/09/2001 - Added support for typedefs, structs, enums and unions
# Support for Context section; can be terminated using empty line
# Small fixes (like spaces vs. \s in regex)
# -- Tim Jansen <tim@tjansen.de>
#
# This will read a 'c' file and scan for embedded comments in the
# style of gnome comments (+minor extensions - see below).
#
# Note: This only supports 'c'.
# usage:
# kernel-doc [ -docbook | -html | -text | -man | -list ] [ -no-doc-sections ]
# [ -function funcname [ -function funcname ...] ] c file(s)s > outputfile
# or
# [ -nofunction funcname [ -function funcname ...] ] c file(s)s > outputfile
#
# Set output format using one of -docbook -html -text or -man. Default is man.
# The -list format is for internal use by docproc.
#
# -no-doc-sections
# Do not output DOC: sections
#
# -function funcname
# If set, then only generate documentation for the given function(s) or
# DOC: section titles. All other functions and DOC: sections are ignored.
#
# -nofunction funcname
# If set, then only generate documentation for the other function(s)/DOC:
# sections. Cannot be used together with -function (yes, that's a bug --
# perl hackers can fix it 8))
#
# c files - list of 'c' files to process
#
# All output goes to stdout, with errors to stderr.
#
# format of comments.
# In the following table, (...)? signifies optional structure.
# (...)* signifies 0 or more structure elements
# /**
# * function_name(:)? (- short description)?
# (* @parameterx: (description of parameter x)?)*
# (* a blank line)?
# * (Description:)? (Description of function)?
# * (section header: (section description)? )*
# (*)?*/
#
# So .. the trivial example would be:
#
# /**
# * my_function
# */
#
# If the Description: header tag is omitted, then there must be a blank line
# after the last parameter specification.
# e.g.
# /**
# * my_function - does my stuff
# * @my_arg: its mine damnit
# *
# * Does my stuff explained.
# */
#
# or, could also use:
# /**
# * my_function - does my stuff
# * @my_arg: its mine damnit
# * Description: Does my stuff explained.
# */
# etc.
#
# Besides functions you can also write documentation for structs, unions,
# enums and typedefs. Instead of the function name you must write the name
# of the declaration; the struct/union/enum/typedef must always precede
# the name. Nesting of declarations is not supported.
# Use the argument mechanism to document members or constants.
# e.g.
# /**
# * struct my_struct - short description
# * @a: first member
# * @b: second member
# *
# * Longer description
# */
# struct my_struct {
# int a;
# int b;
# /* private: */
# int c;
# };
#
# All descriptions can be multiline, except the short function description.
#
# You can also add additional sections. When documenting kernel functions you
# should document the "Context:" of the function, e.g. whether the functions
# can be called form interrupts. Unlike other sections you can end it with an
# empty line.
# Example-sections should contain the string EXAMPLE so that they are marked
# appropriately in DocBook.
#
# Example:
# /**
# * user_function - function that can only be called in user context
# * @a: some argument
# * Context: !in_interrupt()
# *
# * Some description
# * Example:
# * user_function(22);
# */
# ...
#
#
# All descriptive text is further processed, scanning for the following special
# patterns, which are highlighted appropriately.
#
# 'funcname()' - function
# '$ENVVAR' - environmental variable
# '&struct_name' - name of a structure (up to two words including 'struct')
# '@parameter' - name of a parameter
# '%CONST' - name of a constant.
## 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 = '\%([-_\w]+)';
my $type_func = '(\w+)\(\)';
my $type_param = '\@(\w+)';
my $type_struct = '\&((struct\s*)*[_\w]+)';
my $type_struct_xml = '\\&amp;((struct\s*)*[_\w]+)';
my $type_env = '(\$\w+)';
# Output conversion substitutions.
# One for each output format
# these work fairly well
my %highlights_html = ( $type_constant, "<i>\$1</i>",
$type_func, "<b>\$1</b>",
$type_struct_xml, "<i>\$1</i>",
$type_env, "<b><i>\$1</i></b>",
$type_param, "<tt><b>\$1</b></tt>" );
my $local_lt = "\\\\\\\\lt:";
my $local_gt = "\\\\\\\\gt:";
my $blankline_html = $local_lt . "p" . $local_gt; # was "<p>"
# XML, docbook format
my %highlights_xml = ( "([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>",
$type_constant, "<constant>\$1</constant>",
$type_func, "<function>\$1</function>",
$type_struct_xml, "<structname>\$1</structname>",
$type_env, "<envar>\$1</envar>",
$type_param, "<parameter>\$1</parameter>" );
my $blankline_xml = $local_lt . "/para" . $local_gt . $local_lt . "para" . $local_gt . "\n";
# gnome, docbook format
my %highlights_gnome = ( $type_constant, "<replaceable class=\"option\">\$1</replaceable>",
$type_func, "<function>\$1</function>",
$type_struct, "<structname>\$1</structname>",
$type_env, "<envar>\$1</envar>",
$type_param, "<parameter>\$1</parameter>" );
my $blankline_gnome = "</para><para>\n";
# these are pretty rough
my %highlights_man = ( $type_constant, "\$1",
$type_func, "\\\\fB\$1\\\\fP",
$type_struct, "\\\\fI\$1\\\\fP",
$type_param, "\\\\fI\$1\\\\fP" );
my $blankline_man = "";
# text-mode
my %highlights_text = ( $type_constant, "\$1",
$type_func, "\$1",
$type_struct, "\$1",
$type_param, "\$1" );
my $blankline_text = "";
# list mode
my %highlights_list = ( $type_constant, "\$1",
$type_func, "\$1",
$type_struct, "\$1",
$type_param, "\$1" );
my $blankline_list = "";
# read arguments
if ($#ARGV == -1) {
usage();
}
my $kernelversion;
my $dohighlight = "";
my $verbose = 0;
my $output_mode = "man";
my $no_doc_sections = 0;
my %highlights = %highlights_man;
my $blankline = $blankline_man;
my $modulename = "Kernel API";
my $function_only = 0;
my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
'July', 'August', 'September', 'October',
'November', 'December')[(localtime)[4]] .
" " . ((localtime)[5]+1900);
# Essentially these are globals.
# They probably want to be tidied up, made more localised or something.
# CAVEAT EMPTOR! Some of the others I localised may not want to be, which
# could cause "use of undefined value" or other bugs.
my ($function, %function_table, %parametertypes, $declaration_purpose);
my ($type, $declaration_name, $return_type);
my ($newsection, $newcontents, $prototype, $brcount, %source_map);
if (defined($ENV{'KBUILD_VERBOSE'})) {
$verbose = "$ENV{'KBUILD_VERBOSE'}";
}
# Generated docbook code is inserted in a template at a point where
# docbook v3.1 requires a non-zero sequence of RefEntry's; see:
# http://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="";
# states
# 0 - normal code
# 1 - looking for function name
# 2 - scanning field start.
# 3 - scanning prototype.
# 4 - documentation block
my $state;
my $in_doc_sect;
#declaration types: can be
# 'function', 'struct', 'union', 'enum', 'typedef'
my $decl_type;
my $doc_special = "\@\%\$\&";
my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
my $doc_end = '\*/';
my $doc_com = '\s*\*\s*';
my $doc_decl = $doc_com . '(\w+)';
my $doc_sect = $doc_com . '([' . $doc_special . ']?[\w\s]+):(.*)';
my $doc_content = $doc_com . '(.*)';
my $doc_block = $doc_com . 'DOC:\s*(.*)?';
my %constants;
my %parameterdescs;
my @parameterlist;
my %sections;
my @sectionlist;
my $sectcheck;
my $struct_actual;
my $contents = "";
my $section_default = "Description"; # default section
my $section_intro = "Introduction";
my $section = $section_default;
my $section_context = "Context";
my $undescribed = "-- undescribed --";
reset_state();
while ($ARGV[0] =~ m/^-(.*)/) {
my $cmd = shift @ARGV;
if ($cmd eq "-html") {
$output_mode = "html";
%highlights = %highlights_html;
$blankline = $blankline_html;
} elsif ($cmd eq "-man") {
$output_mode = "man";
%highlights = %highlights_man;
$blankline = $blankline_man;
} elsif ($cmd eq "-text") {
$output_mode = "text";
%highlights = %highlights_text;
$blankline = $blankline_text;
} elsif ($cmd eq "-docbook") {
$output_mode = "xml";
%highlights = %highlights_xml;
$blankline = $blankline_xml;
} elsif ($cmd eq "-list") {
$output_mode = "list";
%highlights = %highlights_list;
$blankline = $blankline_list;
} elsif ($cmd eq "-gnome") {
$output_mode = "gnome";
%highlights = %highlights_gnome;
$blankline = $blankline_gnome;
} elsif ($cmd eq "-module") { # not needed for XML, inherits from calling document
$modulename = shift @ARGV;
} elsif ($cmd eq "-function") { # to only output specific functions
$function_only = 1;
$function = shift @ARGV;
$function_table{$function} = 1;
} elsif ($cmd eq "-nofunction") { # to only output specific functions
$function_only = 2;
$function = shift @ARGV;
$function_table{$function} = 1;
} elsif ($cmd eq "-v") {
$verbose = 1;
} elsif (($cmd eq "-h") || ($cmd eq "--help")) {
usage();
} elsif ($cmd eq '-no-doc-sections') {
$no_doc_sections = 1;
}
}
# continue execution near EOF;
sub usage {
print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man | -list ]\n";
print " [ -no-doc-sections ]\n";
print " [ -function funcname [ -function funcname ...] ]\n";
print " [ -nofunction funcname [ -nofunction funcname ...] ]\n";
print " c source file(s) > outputfile\n";
print " -v : verbose output, more warnings & other info listed\n";
exit 1;
}
# get kernel version from env
sub get_kernel_version() {
my $version = 'unknown kernel version';
if (defined($ENV{'KERNELVERSION'})) {
$version = $ENV{'KERNELVERSION'};
}
return $version;
}
##
# 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_constant/) {
$name = $1;
# print STDERR "constant section '$1' = '$contents'\n";
$constants{$name} = $contents;
} elsif ($name =~ m/$type_param/) {
# print STDERR "parameter def '$1' = '$contents'\n";
$name = $1;
$parameterdescs{$name} = $contents;
$sectcheck = $sectcheck . $name . " ";
} elsif ($name eq "@\.\.\.") {
# print STDERR "parameter def '...' = '$contents'\n";
$name = "...";
$parameterdescs{$name} = $contents;
$sectcheck = $sectcheck . $name . " ";
} else {
# print STDERR "other section '$name' = '$contents'\n";
if (defined($sections{$name}) && ($sections{$name} ne "")) {
print STDERR "Error(${file}:$.): duplicate section name '$name'\n";
++$errors;
}
$sections{$name} = $contents;
push @sectionlist, $name;
}
}
##
# 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;
}
if (($function_only == 0) ||
( $function_only == 1 && defined($function_table{$name})) ||
( $function_only == 2 && !defined($function_table{$name})))
{
dump_section($file, $name, $contents);
output_blockhead({'sectionlist' => \@sectionlist,
'sections' => \%sections,
'module' => $modulename,
'content-only' => ($function_only != 0), });
}
}
##
# 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 $contents) {
# use Carp;
# confess "output_highlight got called with no args?\n";
# }
if ($output_mode eq "html" || $output_mode eq "xml") {
$contents = local_unescape($contents);
# convert data read & converted thru xml_escape() into &xyz; format:
$contents =~ s/\\\\\\/\&/g;
}
# print STDERR "contents b4:$contents\n";
eval $dohighlight;
die $@ if $@;
# print STDERR "contents af:$contents\n";
foreach $line (split "\n", $contents) {
if ($line eq ""){
print $lineprefix, local_unescape($blankline);
} else {
$line =~ s/\\\\\\/\&/g;
if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
print "\\&$line";
} else {
print $lineprefix, $line;
}
}
print "\n";
}
}
#output sections in html
sub output_section_html(%) {
my %args = %{$_[0]};
my $section;
foreach $section (@{$args{'sectionlist'}}) {
print "<h3>$section</h3>\n";
print "<blockquote>\n";
output_highlight($args{'sections'}{$section});
print "</blockquote>\n";
}
}
# output enum in html
sub output_enum_html(%) {
my %args = %{$_[0]};
my ($parameter);
my $count;
print "<h2>enum " . $args{'enum'} . "</h2>\n";
print "<b>enum " . $args{'enum'} . "</b> {<br>\n";
$count = 0;
foreach $parameter (@{$args{'parameterlist'}}) {
print " <b>" . $parameter . "</b>";
if ($count != $#{$args{'parameterlist'}}) {
$count++;
print ",\n";
}
print "<br>";
}
print "};<br>\n";
print "<h3>Constants</h3>\n";
print "<dl>\n";
foreach $parameter (@{$args{'parameterlist'}}) {
print "<dt><b>" . $parameter . "</b>\n";
print "<dd>";
output_highlight($args{'parameterdescs'}{$parameter});
}
print "</dl>\n";
output_section_html(@_);
print "<hr>\n";
}
# output typedef in html
sub output_typedef_html(%) {
my %args = %{$_[0]};
my ($parameter);
my $count;
print "<h2>typedef " . $args{'typedef'} . "</h2>\n";
print "<b>typedef " . $args{'typedef'} . "</b>\n";
output_section_html(@_);
print "<hr>\n";
}
# output struct in html
sub output_struct_html(%) {
my %args = %{$_[0]};
my ($parameter);
print "<h2>" . $args{'type'} . " " . $args{'struct'} . " - " . $args{'purpose'} . "</h2>\n";
print "<b>" . $args{'type'} . " " . $args{'struct'} . "</b> {<br>\n";
foreach $parameter (@{$args{'parameterlist'}}) {
if ($parameter =~ /^#/) {
print "$parameter<br>\n";
next;
}
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
$type = $args{'parametertypes'}{$parameter};
if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
# pointer-to-function
print "&nbsp; &nbsp; <i>$1</i><b>$parameter</b>) <i>($2)</i>;<br>\n";
} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
# bitfield
print "&nbsp; &nbsp; <i>$1</i> <b>$parameter</b>$2;<br>\n";
} else {
print "&nbsp; &nbsp; <i>$type</i> <b>$parameter</b>;<br>\n";
}
}
print "};<br>\n";
print "<h3>Members</h3>\n";
print "<dl>\n";
foreach $parameter (@{$args{'parameterlist'}}) {
($parameter =~ /^#/) && next;
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
print "<dt><b>" . $parameter . "</b>\n";
print "<dd>";
output_highlight($args{'parameterdescs'}{$parameter_name});
}
print "</dl>\n";
output_section_html(@_);
print "<hr>\n";
}
# output function in html
sub output_function_html(%) {
my %args = %{$_[0]};
my ($parameter, $section);
my $count;
print "<h2>" . $args{'function'} . " - " . $args{'purpose'} . "</h2>\n";
print "<i>" . $args{'functiontype'} . "</i>\n";
print "<b>" . $args{'function'} . "</b>\n";
print "(";
$count = 0;
foreach $parameter (@{$args{'parameterlist'}}) {
$type = $args{'parametertypes'}{$parameter};
if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
# pointer-to-function
print "<i>$1</i><b>$parameter</b>) <i>($2)</i>";
} else {
print "<i>" . $type . "</i> <b>" . $parameter . "</b>";
}
if ($count != $#{$args{'parameterlist'}}) {
$count++;
print ",\n";
}
}
print ")\n";
print "<h3>Arguments</h3>\n";
print "<dl>\n";
foreach $parameter (@{$args{'parameterlist'}}) {
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
print "<dt><b>" . $parameter . "</b>\n";
print "<dd>";
output_highlight($args{'parameterdescs'}{$parameter_name});
}
print "</dl>\n";
output_section_html(@_);
print "<hr>\n";
}
# output DOC: block header in html
sub output_blockhead_html(%) {
my %args = %{$_[0]};
my ($parameter, $section);
my $count;
foreach $section (@{$args{'sectionlist'}}) {
print "<h3>$section</h3>\n";
print "<ul>\n";
output_highlight($args{'sections'}{$section});
print "</ul>\n";
}
print "<hr>\n";
}
sub output_section_xml(%) {
my %args = %{$_[0]};
my $section;
# print out each section
$lineprefix=" ";
foreach $section (@{$args{'sectionlist'}}) {
print "<refsect1>\n";
print "<title>$section</title>\n";
if ($section =~ m/EXAMPLE/i) {
print "<informalexample><programlisting>\n";
} else {
print "<para>\n";
}
output_highlight($args{'sections'}{$section});
if ($section =~ m/EXAMPLE/i) {
print "</programlisting></informalexample>\n";
} else {
print "</para>\n";
}
print "</refsect1>\n";
}
}
# output function in XML DocBook
sub output_function_xml(%) {
my %args = %{$_[0]};
my ($parameter, $section);
my $count;
my $id;
$id = "API-" . $args{'function'};
$id =~ s/[^A-Za-z0-9]/-/g;
print "<refentry id=\"$id\">\n";
print "<refentryinfo>\n";
print " <title>LINUX</title>\n";
print " <productname>Kernel Hackers Manual</productname>\n";
print " <date>$man_date</date>\n";
print "</refentryinfo>\n";
print "<refmeta>\n";
print " <refentrytitle><phrase>" . $args{'function'} . "</phrase></refentrytitle>\n";
print " <manvolnum>9</manvolnum>\n";
print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
print "</refmeta>\n";
print "<refnamediv>\n";
print " <refname>" . $args{'function'} . "</refname>\n";
print " <refpurpose>\n";
print " ";
output_highlight ($args{'purpose'});
print " </refpurpose>\n";
print "</refnamediv>\n";
print "<refsynopsisdiv>\n";
print " <title>Synopsis</title>\n";
print " <funcsynopsis><funcprototype>\n";
print " <funcdef>" . $args{'functiontype'} . " ";
print "<function>" . $args{'function'} . " </function></funcdef>\n";
$count = 0;
if ($#{$args{'parameterlist'}} >= 0) {
foreach $parameter (@{$args{'parameterlist'}}) {
$type = $args{'parametertypes'}{$parameter};
if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
# pointer-to-function
print " <paramdef>$1<parameter>$parameter</parameter>)\n";
print " <funcparams>$2</funcparams></paramdef>\n";
} else {
print " <paramdef>" . $type;
print " <parameter>$parameter</parameter></paramdef>\n";
}
}
} else {
print " <void/>\n";
}
print " </funcprototype></funcsynopsis>\n";
print "</refsynopsisdiv>\n";
# print parameters
print "<refsect1>\n <title>Arguments</title>\n";
if ($#{$args{'parameterlist'}} >= 0) {
print " <variablelist>\n";
foreach $parameter (@{$args{'parameterlist'}}) {
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
print " <varlistentry>\n <term><parameter>$parameter</parameter></term>\n";
print " <listitem>\n <para>\n";
$lineprefix=" ";
output_highlight($args{'parameterdescs'}{$parameter_name});
print " </para>\n </listitem>\n </varlistentry>\n";
}
print " </variablelist>\n";
} else {
print " <para>\n None\n </para>\n";
}
print "</refsect1>\n";
output_section_xml(@_);
print "</refentry>\n\n";
}
# output struct in XML DocBook
sub output_struct_xml(%) {
my %args = %{$_[0]};
my ($parameter, $section);
my $id;
$id = "API-struct-" . $args{'struct'};
$id =~ s/[^A-Za-z0-9]/-/g;
print "<refentry id=\"$id\">\n";
print "<refentryinfo>\n";
print " <title>LINUX</title>\n";
print " <productname>Kernel Hackers Manual</productname>\n";
print " <date>$man_date</date>\n";
print "</refentryinfo>\n";
print "<refmeta>\n";
print " <refentrytitle><phrase>" . $args{'type'} . " " . $args{'struct'} . "</phrase></refentrytitle>\n";
print " <manvolnum>9</manvolnum>\n";
print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
print "</refmeta>\n";
print "<refnamediv>\n";
print " <refname>" . $args{'type'} . " " . $args{'struct'} . "</refname>\n";
print " <refpurpose>\n";
print " ";
output_highlight ($args{'purpose'});
print " </refpurpose>\n";
print "</refnamediv>\n";
print "<refsynopsisdiv>\n";
print " <title>Synopsis</title>\n";
print " <programlisting>\n";
print $args{'type'} . " " . $args{'struct'} . " {\n";
foreach $parameter (@{$args{'parameterlist'}}) {
if ($parameter =~ /^#/) {
my $prm = $parameter;
# convert data read & converted thru xml_escape() into &xyz; format:
# This allows us to have #define macros interspersed in a struct.
$prm =~ s/\\\\\\/\&/g;
print "$prm\n";
next;
}
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
defined($args{'parameterdescs'}{$parameter_name}) || next;
($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
$type = $args{'parametertypes'}{$parameter};
if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
# pointer-to-function
print " $1 $parameter) ($2);\n";
} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
# bitfield
print " $1 $parameter$2;\n";
} else {
print " " . $type . " " . $parameter . ";\n";
}
}
print "};";
print " </programlisting>\n";
print "</refsynopsisdiv>\n";
print " <refsect1>\n";
print " <title>Members</title>\n";
if ($#{$args{'parameterlist'}} >= 0) {
print " <variablelist>\n";
foreach $parameter (@{$args{'parameterlist'}}) {
($parameter =~ /^#/) && next;
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
defined($args{'parameterdescs'}{$parameter_name}) || next;
($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
print " <varlistentry>";
print " <term>$parameter</term>\n";
print " <listitem><para>\n";
output_highlight($args{'parameterdescs'}{$parameter_name});
print " </para></listitem>\n";
print " </varlistentry>\n";
}
print " </variablelist>\n";
} else {
print " <para>\n None\n </para>\n";
}
print " </refsect1>\n";
output_section_xml(@_);
print "</refentry>\n\n";
}
# output enum in XML DocBook
sub output_enum_xml(%) {
my %args = %{$_[0]};
my ($parameter, $section);
my $count;
my $id;
$id = "API-enum-" . $args{'enum'};
$id =~ s/[^A-Za-z0-9]/-/g;
print "<refentry id=\"$id\">\n";
print "<refentryinfo>\n";
print " <title>LINUX</title>\n";
print " <productname>Kernel Hackers Manual</productname>\n";
print " <date>$man_date</date>\n";
print "</refentryinfo>\n";
print "<refmeta>\n";
print " <refentrytitle><phrase>enum " . $args{'enum'} . "</phrase></refentrytitle>\n";
print " <manvolnum>9</manvolnum>\n";
print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
print "</refmeta>\n";
print "<refnamediv>\n";
print " <refname>enum " . $args{'enum'} . "</refname>\n";
print " <refpurpose>\n";
print " ";
output_highlight ($args{'purpose'});
print " </refpurpose>\n";
print "</refnamediv>\n";
print "<refsynopsisdiv>\n";
print " <title>Synopsis</title>\n";
print " <programlisting>\n";
print "enum " . $args{'enum'} . " {\n";
$count = 0;
foreach $parameter (@{$args{'parameterlist'}}) {
print " $parameter";
if ($count != $#{$args{'parameterlist'}}) {
$count++;
print ",";
}
print "\n";
}
print "};";
print " </programlisting>\n";
print "</refsynopsisdiv>\n";
print "<refsect1>\n";
print " <title>Constants</title>\n";
print " <variablelist>\n";
foreach $parameter (@{$args{'parameterlist'}}) {
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
print " <varlistentry>";
print " <term>$parameter</term>\n";
print " <listitem><para>\n";
output_highlight($args{'parameterdescs'}{$parameter_name});
print " </para></listitem>\n";
print " </varlistentry>\n";
}
print " </variablelist>\n";
print "</refsect1>\n";
output_section_xml(@_);
print "</refentry>\n\n";
}
# output typedef in XML DocBook
sub output_typedef_xml(%) {
my %args = %{$_[0]};
my ($parameter, $section);
my $id;
$id = "API-typedef-" . $args{'typedef'};
$id =~ s/[^A-Za-z0-9]/-/g;
print "<refentry id=\"$id\">\n";
print "<refentryinfo>\n";
print " <title>LINUX</title>\n";
print " <productname>Kernel Hackers Manual</productname>\n";
print " <date>$man_date</date>\n";
print "</refentryinfo>\n";
print "<refmeta>\n";
print " <refentrytitle><phrase>typedef " . $args{'typedef'} . "</phrase></refentrytitle>\n";
print " <manvolnum>9</manvolnum>\n";
print "</refmeta>\n";
print "<refnamediv>\n";
print " <refname>typedef " . $args{'typedef'} . "</refname>\n";
print " <refpurpose>\n";
print " ";
output_highlight ($args{'purpose'});
print " </refpurpose>\n";
print "</refnamediv>\n";
print "<refsynopsisdiv>\n";
print " <title>Synopsis</title>\n";
print " <synopsis>typedef " . $args{'typedef'} . ";</synopsis>\n";
print "</refsynopsisdiv>\n";
output_section_xml(@_);
print "</refentry>\n\n";
}
# output in XML DocBook
sub output_blockhead_xml(%) {
my %args = %{$_[0]};
my ($parameter, $section);
my $count;
my $id = $args{'module'};
$id =~ s/[^A-Za-z0-9]/-/g;
# print out each section
$lineprefix=" ";
foreach $section (@{$args{'sectionlist'}}) {
if (!$args{'content-only'}) {
print "<refsect1>\n <title>$section</title>\n";
}
if ($section =~ m/EXAMPLE/i) {
print "<example><para>\n";
} else {
print "<para>\n";
}
output_highlight($args{'sections'}{$section});
if ($section =~ m/EXAMPLE/i) {
print "</para></example>\n";
} else {
print "</para>";
}
if (!$args{'content-only'}) {
print "\n</refsect1>\n";
}
}
print "\n\n";
}
# output in XML DocBook
sub output_function_gnome {
my %args = %{$_[0]};
my ($parameter, $section);
my $count;
my $id;
$id = $args{'module'} . "-" . $args{'function'};
$id =~ s/[^A-Za-z0-9]/-/g;
print "<sect2>\n";
print " <title id=\"$id\">" . $args{'function'} . "</title>\n";
print " <funcsynopsis>\n";
print " <funcdef>" . $args{'functiontype'} . " ";
print "<function>" . $args{'function'} . " ";
print "</function></funcdef>\n";
$count = 0;
if ($#{$args{'parameterlist'}} >= 0) {
foreach $parameter (@{$args{'parameterlist'}}) {
$type = $args{'parametertypes'}{$parameter};
if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
# pointer-to-function
print " <paramdef>$1 <parameter>$parameter</parameter>)\n";
print " <funcparams>$2</funcparams></paramdef>\n";
} else {
print " <paramdef>" . $type;
print " <parameter>$parameter</parameter></paramdef>\n";
}
}
} else {
print " <void>\n";
}
print " </funcsynopsis>\n";
if ($#{$args{'parameterlist'}} >= 0) {
print " <informaltable pgwide=\"1\" frame=\"none\" role=\"params\">\n";
print "<tgroup cols=\"2\">\n";
print "<colspec colwidth=\"2*\">\n";
print "<colspec colwidth=\"8*\">\n";
print "<tbody>\n";
foreach $parameter (@{$args{'parameterlist'}}) {
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
print " <row><entry align=\"right\"><parameter>$parameter</parameter></entry>\n";
print " <entry>\n";
$lineprefix=" ";
output_highlight($args{'parameterdescs'}{$parameter_name});
print " </entry></row>\n";
}
print " </tbody></tgroup></informaltable>\n";
} else {
print " <para>\n None\n </para>\n";
}
# print out each section
$lineprefix=" ";
foreach $section (@{$args{'sectionlist'}}) {
print "<simplesect>\n <title>$section</title>\n";
if ($section =~ m/EXAMPLE/i) {
print "<example><programlisting>\n";
} else {
}
print "<para>\n";
output_highlight($args{'sections'}{$section});
print "</para>\n";
if ($section =~ m/EXAMPLE/i) {
print "</programlisting></example>\n";
} else {
}
print " </simplesect>\n";
}
print "</sect2>\n\n";
}
##
# output function in man
sub output_function_man(%) {
my %args = %{$_[0]};
my ($parameter, $section);
my $count;
print ".TH \"$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/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
# pointer-to-function
print ".BI \"" . $parenth . $1 . "\" " . $parameter . " \") (" . $2 . ")" . $post . "\"\n";
} else {
$type =~ s/([^\*])$/$1 /;
print ".BI \"" . $parenth . $type . "\" " . $parameter . " \"" . $post . "\"\n";
}
$count++;
$parenth = "";
}
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";
print ".SH SYNOPSIS\n";
print $args{'type'} . " " . $args{'struct'} . " {\n.br\n";
foreach my $parameter (@{$args{'parameterlist'}}) {
if ($parameter =~ /^#/) {
print ".BI \"$parameter\"\n.br\n";
next;
}
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
$type = $args{'parametertypes'}{$parameter};
if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
# pointer-to-function
print ".BI \" " . $1 . "\" " . $parameter . " \") (" . $2 . ")" . "\"\n;\n";
} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
# bitfield
print ".BI \" " . $1 . "\ \" " . $parameter . $2 . " \"" . "\"\n;\n";
} else {
$type =~ s/([^\*])$/$1 /;
print ".BI \" " . $type . "\" " . $parameter . " \"" . "\"\n;\n";
}
print "\n.br\n";
}
print "};\n.br\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'}{$section});
}
}
##
# output in text
sub output_function_text(%) {
my %args = %{$_[0]};
my ($parameter, $section);
my $start;
print "Name:\n\n";
print $args{'function'} . " - " . $args{'purpose'} . "\n";
print "\nSynopsis:\n\n";
if ($args{'functiontype'} ne "") {
$start = $args{'functiontype'} . " " . $args{'function'} . " (";
} else {
$start = $args{'function'} . " (";
}
print $start;
my $count = 0;
foreach my $parameter (@{$args{'parameterlist'}}) {
$type = $args{'parametertypes'}{$parameter};
if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
# pointer-to-function
print $1 . $parameter . ") (" . $2;
} else {
print $type . " " . $parameter;
}
if ($count != $#{$args{'parameterlist'}}) {
$count++;
print ",\n";
print " " x length($start);
} else {
print ");\n\n";
}
}
print "Arguments:\n\n";
foreach $parameter (@{$args{'parameterlist'}}) {
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
print $parameter . "\n\t" . $args{'parameterdescs'}{$parameter_name} . "\n";
}
output_section_text(@_);
}
#output sections in text
sub output_section_text(%) {
my %args = %{$_[0]};
my $section;
print "\n";
foreach $section (@{$args{'sectionlist'}}) {
print "$section:\n\n";
output_highlight($args{'sections'}{$section});
}
print "\n\n";
}
# output enum in text
sub output_enum_text(%) {
my %args = %{$_[0]};
my ($parameter);
my $count;
print "Enum:\n\n";
print "enum " . $args{'enum'} . " - " . $args{'purpose'} . "\n\n";
print "enum " . $args{'enum'} . " {\n";
$count = 0;
foreach $parameter (@{$args{'parameterlist'}}) {
print "\t$parameter";
if ($count != $#{$args{'parameterlist'}}) {
$count++;
print ",";
}
print "\n";
}
print "};\n\n";
print "Constants:\n\n";
foreach $parameter (@{$args{'parameterlist'}}) {
print "$parameter\n\t";
print $args{'parameterdescs'}{$parameter} . "\n";
}
output_section_text(@_);
}
# output typedef in text
sub output_typedef_text(%) {
my %args = %{$_[0]};
my ($parameter);
my $count;
print "Typedef:\n\n";
print "typedef " . $args{'typedef'} . " - " . $args{'purpose'} . "\n";
output_section_text(@_);
}
# output struct as text
sub output_struct_text(%) {
my %args = %{$_[0]};
my ($parameter);
print $args{'type'} . " " . $args{'struct'} . " - " . $args{'purpose'} . "\n\n";
print $args{'type'} . " " . $args{'struct'} . " {\n";
foreach $parameter (@{$args{'parameterlist'}}) {
if ($parameter =~ /^#/) {
print "$parameter\n";
next;
}
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
$type = $args{'parametertypes'}{$parameter};
if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
# pointer-to-function
print "\t$1 $parameter) ($2);\n";
} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
# bitfield
print "\t$1 $parameter$2;\n";
} else {
print "\t" . $type . " " . $parameter . ";\n";
}
}
print "};\n\n";
print "Members:\n\n";
foreach $parameter (@{$args{'parameterlist'}}) {
($parameter =~ /^#/) && next;
my $parameter_name = $parameter;
$parameter_name =~ s/\[.*//;
($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
print "$parameter\n\t";
print $args{'parameterdescs'}{$parameter_name} . "\n";
}
print "\n";
output_section_text(@_);
}
sub output_blockhead_text(%) {
my %args = %{$_[0]};
my ($parameter, $section);
foreach $section (@{$args{'sectionlist'}}) {
print " $section:\n";
print " -> ";
output_highlight($args{'sections'}{$section});
}
}
## list mode output functions
sub output_function_list(%) {
my %args = %{$_[0]};
print $args{'function'} . "\n";
}
# output enum in list
sub output_enum_list(%) {
my %args = %{$_[0]};
print $args{'enum'} . "\n";
}
# output typedef in list
sub output_typedef_list(%) {
my %args = %{$_[0]};
print $args{'typedef'} . "\n";
}
# output struct as list
sub output_struct_list(%) {
my %args = %{$_[0]};
print $args{'struct'} . "\n";
}
sub output_blockhead_list(%) {
my %args = %{$_[0]};
my ($parameter, $section);
foreach $section (@{$args{'sectionlist'}}) {
print "DOC: $section\n";
}
}
##
# 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}_$output_mode";
if (($function_only==0) ||
( $function_only == 1 && defined($function_table{$name})) ||
( $function_only == 2 && !defined($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 $nested;
if ($x =~ /(struct|union)\s+(\w+)\s*{(.*)}/) {
#my $decl_type = $1;
$declaration_name = $2;
my $members = $3;
# ignore embedded structs or unions
$members =~ s/({.*})//g;
$nested = $1;
# ignore members marked private:
$members =~ s/\/\*\s*private:.*?\/\*\s*public:.*?\*\///gos;
$members =~ s/\/\*\s*private:.*//gos;
# strip comments:
$members =~ s/\/\*.*?\*\///gos;
$nested =~ s/\/\*.*?\*\///gos;
# strip kmemcheck_bitfield_{begin,end}.*;
$members =~ s/kmemcheck_bitfield_.*?;//gos;
# strip attributes
$members =~ s/__aligned\s*\(\d+\)//gos;
create_parameterlist($members, ';', $file);
check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested);
output_declaration($declaration_name,
'struct',
{'struct' => $declaration_name,
'module' => $modulename,
'parameterlist' => \@parameterlist,
'parameterdescs' => \%parameterdescs,
'parametertypes' => \%parametertypes,
'sectionlist' => \@sectionlist,
'sections' => \%sections,
'purpose' => $declaration_purpose,
'type' => $decl_type
});
}
else {
print STDERR "Error(${file}:$.): Cannot parse struct or union!\n";
++$errors;
}
}
sub dump_enum($$) {
my $x = shift;
my $file = shift;
$x =~ s@/\*.*?\*/@@gos; # strip comments.
$x =~ s/^#\s*define\s+.*$//; # strip #define macros inside enums
if ($x =~ /enum\s+(\w+)\s*{(.*)}/) {
$declaration_name = $1;
my $members = $2;
foreach my $arg (split ',', $members) {
$arg =~ s/^\s*(\w+).*/$1/;
push @parameterlist, $arg;
if (!$parameterdescs{$arg}) {
$parameterdescs{$arg} = $undescribed;
print STDERR "Warning(${file}:$.): Enum value '$arg' ".
"not described in enum '$declaration_name'\n";
}
}
output_declaration($declaration_name,
'enum',
{'enum' => $declaration_name,
'module' => $modulename,
'parameterlist' => \@parameterlist,
'parameterdescs' => \%parameterdescs,
'sectionlist' => \@sectionlist,
'sections' => \%sections,
'purpose' => $declaration_purpose
});
}
else {
print STDERR "Error(${file}:$.): Cannot parse enum!\n";
++$errors;
}
}
sub dump_typedef($$) {
my $x = shift;
my $file = shift;
$x =~ s@/\*.*?\*/@@gos; # strip comments.
while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
$x =~ s/\(*.\)\s*;$/;/;
$x =~ s/\[*.\]\s*;$/;/;
}
if ($x =~ /typedef.*\s+(\w+)\s*;/) {
$declaration_name = $1;
output_declaration($declaration_name,
'typedef',
{'typedef' => $declaration_name,
'module' => $modulename,
'sectionlist' => \@sectionlist,
'sections' => \%sections,
'purpose' => $declaration_purpose
});
}
else {
print STDERR "Error(${file}:$.): Cannot parse typedef!\n";
++$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 $type;
my $param;
# temporarily replace commas inside function pointer definition
while ($args =~ /(\([^\),]+),/) {
$args =~ s/(\([^\),]+),/$1#/g;
}
foreach my $arg (split($splitter, $args)) {
# strip comments
$arg =~ 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, $file);
} elsif ($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", $file);
}
elsif ($param =~ m/(.*?):(\d+)/) {
if ($type ne "") { # skip unnamed bit-fields
save_struct_actual($1);
push_parameter($1, "$type:$2", $file)
}
}
else {
save_struct_actual($param);
push_parameter($param, $type, $file);
}
}
}
}
}
sub push_parameter($$$) {
my $param = shift;
my $type = shift;
my $file = shift;
if (($anon_struct_union == 1) && ($type eq "") &&
($param eq "}")) {
return; # ignore the ending }; from anon. struct/union
}
$anon_struct_union = 0;
my $param_name = $param;
$param_name =~ s/\[.*//;
if ($type eq "" && $param =~ /\.\.\.$/)
{
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";
$anon_struct_union = 1;
}
# warn if parameter has no description
# (but ignore ones starting with # as these are not parameters
# but inline preprocessor statements);
# also ignore unnamed structs/unions;
if (!$anon_struct_union) {
if (!defined $parameterdescs{$param_name} && $param_name !~ /^#/) {
$parameterdescs{$param_name} = $undescribed;
if (($type eq 'function') || ($type eq 'enum')) {
print STDERR "Warning(${file}:$.): Function parameter ".
"or member '$param' not " .
"described in '$declaration_name'\n";
}
print STDERR "Warning(${file}:$.):" .
" No description found for parameter '$param'\n";
++$warnings;
}
}
$param = xml_escape($param);
# strip spaces from $param so that it is one continous string
# on @parameterlist;
# this fixes a problem where check_sections() cannot find
# a parameter like "addr[6 + 2]" because it actually appears
# as "addr[6", "+", "2]" on the parameter list;
# but it's better to maintain the param string unchanged for output,
# so just weaken the string compare in check_sections() to ignore
# "[blah" in a parameter string;
###$param =~ s/\s*//g;
push @parameterlist, $param;
$parametertypes{$param} = $type;
}
sub check_sections($$$$$$) {
my ($file, $decl_name, $decl_type, $sectcheck, $prmscheck, $nested) = @_;
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__\s*\(\([a-z,_\*\s\(\)]*\)\)//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 ($decl_type eq "function") {
print STDERR "Warning(${file}:$.): " .
"Excess function parameter " .
"'$sects[$sx]' " .
"description in '$decl_name'\n";
++$warnings;
} else {
if ($nested !~ m/\Q$sects[$sx]\E/) {
print STDERR "Warning(${file}:$.): " .
"Excess struct/union/enum/typedef member " .
"'$sects[$sx]' " .
"description in '$decl_name'\n";
++$warnings;
}
}
}
}
}
##
# 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;
$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/__devinit +//;
$prototype =~ s/__init +//;
$prototype =~ s/__init_or_module +//;
$prototype =~ s/^#\s*define\s+//; #ak added
$prototype =~ s/__attribute__\s*\(\([a-z,]*\)\)//;
# 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)
if ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
$prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
$prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
$prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
$prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
$prototype =~ m/^(\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
$prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
$prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
$prototype =~ m/^(\w+\s+\w+\s*\*\s*\w+\s*\*\s*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/) {
$return_type = $1;
$declaration_name = $2;
my $args = $3;
create_parameterlist($args, ',', $file);
} else {
print STDERR "Error(${file}:$.): cannot understand prototype: '$prototype'\n";
++$errors;
return;
}
my $prms = join " ", @parameterlist;
check_sections($file, $declaration_name, "function", $sectcheck, $prms, "");
output_declaration($declaration_name,
'function',
{'function' => $declaration_name,
'module' => $modulename,
'functiontype' => $return_type,
'parameterlist' => \@parameterlist,
'parameterdescs' => \%parameterdescs,
'parametertypes' => \%parametertypes,
'sectionlist' => \@sectionlist,
'sections' => \%sections,
'purpose' => $declaration_purpose
});
}
sub reset_state {
$function = "";
%constants = ();
%parameterdescs = ();
%parametertypes = ();
@parameterlist = ();
%sections = ();
@sectionlist = ();
$sectcheck = "";
$struct_actual = "";
$prototype = "";
$state = 0;
}
sub tracepoint_munge($) {
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) || ($tracepointargs eq 0)) {
print STDERR "Warning(${file}:$.): Unrecognized tracepoint format: \n".
"$prototype\n";
} else {
$prototype = "static inline void trace_$tracepointname($tracepointargs)";
}
}
sub syscall_munge() {
my $void = 0;
$prototype =~ s@[\r\n\t]+@ @gos; # strip newlines/CR's/tabs
## if ($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_state3_function($$) {
my $x = shift;
my $file = shift;
$x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#\s*define/)) {
# do nothing
}
elsif ($x =~ /([^\{]*)/) {
$prototype .= $1;
}
if (($x =~ /\{/) || ($x =~ /\#\s*define/) || ($x =~ /;/)) {
$prototype =~ s@/\*.*?\*/@@gos; # strip comments.
$prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
$prototype =~ s@^\s+@@gos; # strip leading spaces
if ($prototype =~ /SYSCALL_DEFINE/) {
syscall_munge();
}
if ($prototype =~ /TRACE_EVENT/ || $prototype =~ /DEFINE_EVENT/ ||
$prototype =~ /DEFINE_SINGLE_EVENT/)
{
tracepoint_munge($file);
}
dump_function($prototype, $file);
reset_state();
}
}
sub process_state3_type($$) {
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 =~ /([^{};]*)([{};])(.*)/ ) {
$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;
}
}
}
# xml_escape: replace <, >, and & in the text stream;
#
# however, formatting controls that are generated internally/locally in the
# kernel-doc script are not escaped here; instead, they begin life like
# $blankline_html (4 of '\' followed by a mnemonic + ':'), then these strings
# are converted to their mnemonic-expected output, without the 4 * '\' & ':',
# just before actual output; (this is done by local_unescape())
sub xml_escape($) {
my $text = shift;
if (($output_mode eq "text") || ($output_mode eq "man")) {
return $text;
}
$text =~ s/\&/\\\\\\amp;/g;
$text =~ s/\</\\\\\\lt;/g;
$text =~ s/\>/\\\\\\gt;/g;
return $text;
}
# convert local escape strings to html
# local escape strings look like: '\\\\menmonic:' (that's 4 backslashes)
sub local_unescape($) {
my $text = shift;
if (($output_mode eq "text") || ($output_mode eq "man")) {
return $text;
}
$text =~ s/\\\\\\\\lt:/</g;
$text =~ s/\\\\\\\\gt:/>/g;
return $text;
}
sub process_file($) {
my $file;
my $identifier;
my $func;
my $descr;
my $in_purpose = 0;
my $initial_section_counter = $section_counter;
if (defined($ENV{'SRCTREE'})) {
$file = "$ENV{'SRCTREE'}" . "/" . "@_";
}
else {
$file = "@_";
}
if (defined($source_map{$file})) {
$file = $source_map{$file};
}
if (!open(IN,"<$file")) {
print STDERR "Error: Cannot open file $file\n";
++$errors;
return;
}
$. = 1;
$section_counter = 0;
while (<IN>) {
if ($state == 0) {
if (/$doc_start/o) {
$state = 1; # next line is always the function name
$in_doc_sect = 0;
}
} elsif ($state == 1) { # this line is the function name (always)
if (/$doc_block/o) {
$state = 4;
$contents = "";
if ( $1 eq "" ) {
$section = $section_intro;
} else {
$section = $1;
}
}
elsif (/$doc_decl/o) {
$identifier = $1;
if (/\s*([\w\s]+?)\s*-/) {
$identifier = $1;
}
$state = 2;
if (/-(.*)/) {
# strip leading/trailing/multiple spaces
$descr= $1;
$descr =~ s/^\s*//;
$descr =~ s/\s*$//;
$descr =~ s/\s+/ /;
$declaration_purpose = xml_escape($descr);
$in_purpose = 1;
} else {
$declaration_purpose = "";
}
if (($declaration_purpose eq "") && $verbose) {
print STDERR "Warning(${file}:$.): missing initial short description on line:\n";
print STDERR $_;
++$warnings;
}
if ($identifier =~ m/^struct/) {
$decl_type = 'struct';
} elsif ($identifier =~ m/^union/) {
$decl_type = 'union';
} elsif ($identifier =~ m/^enum/) {
$decl_type = 'enum';
} elsif ($identifier =~ m/^typedef/) {
$decl_type = 'typedef';
} else {
$decl_type = 'function';
}
if ($verbose) {
print STDERR "Info(${file}:$.): Scanning doc for $identifier\n";
}
} else {
print STDERR "Warning(${file}:$.): Cannot understand $_ on line $.",
" - I thought it was a doc line\n";
++$warnings;
$state = 0;
}
} elsif ($state == 2) { # look for head: lines, and include content
if (/$doc_sect/o) {
$newsection = $1;
$newcontents = $2;
if (($contents ne "") && ($contents ne "\n")) {
if (!$in_doc_sect && $verbose) {
print STDERR "Warning(${file}:$.): contents before sections\n";
++$warnings;
}
dump_section($file, $section, xml_escape($contents));
$section = $section_default;
}
$in_doc_sect = 1;
$in_purpose = 0;
$contents = $newcontents;
if ($contents ne "") {
while ((substr($contents, 0, 1) eq " ") ||
substr($contents, 0, 1) eq "\t") {
$contents = substr($contents, 1);
}
$contents .= "\n";
}
$section = $newsection;
} elsif (/$doc_end/) {
if (($contents ne "") && ($contents ne "\n")) {
dump_section($file, $section, xml_escape($contents));
$section = $section_default;
$contents = "";
}
# look for doc_com + <text> + doc_end:
if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
print STDERR "Warning(${file}:$.): suspicious ending line: $_";
++$warnings;
}
$prototype = "";
$state = 3;
$brcount = 0;
# print STDERR "end of doc comment, looking for prototype\n";
} elsif (/$doc_content/) {
# miguel-style comment kludge, look for blank lines after
# @parameter line to signify start of description
if ($1 eq "") {
if ($section =~ m/^@/ || $section eq $section_context) {
dump_section($file, $section, xml_escape($contents));
$section = $section_default;
$contents = "";
} else {
$contents .= "\n";
}
$in_purpose = 0;
} elsif ($in_purpose == 1) {
# Continued declaration purpose
chomp($declaration_purpose);
$declaration_purpose .= " " . xml_escape($1);
} else {
$contents .= $1 . "\n";
}
} else {
# i dont know - bad line? ignore.
print STDERR "Warning(${file}:$.): bad line: $_";
++$warnings;
}
} elsif ($state == 3) { # scanning for function '{' (end of prototype)
if ($decl_type eq 'function') {
process_state3_function($_, $file);
} else {
process_state3_type($_, $file);
}
} elsif ($state == 4) {
# Documentation block
if (/$doc_block/) {
dump_doc_section($file, $section, xml_escape($contents));
$contents = "";
$function = "";
%constants = ();
%parameterdescs = ();
%parametertypes = ();
@parameterlist = ();
%sections = ();
@sectionlist = ();
$prototype = "";
if ( $1 eq "" ) {
$section = $section_intro;
} else {
$section = $1;
}
}
elsif (/$doc_end/)
{
dump_doc_section($file, $section, xml_escape($contents));
$contents = "";
$function = "";
%constants = ();
%parameterdescs = ();
%parametertypes = ();
@parameterlist = ();
%sections = ();
@sectionlist = ();
$prototype = "";
$state = 0;
}
elsif (/$doc_content/)
{
if ( $1 eq "" )
{
$contents .= $blankline;
}
else
{
$contents .= $1 . "\n";
}
}
}
}
if ($initial_section_counter == $section_counter) {
print STDERR "Warning(${file}): no structured comments found\n";
if ($output_mode eq "xml") {
# The template wants at least one RefEntry here; make one.
print "<refentry>\n";
print " <refnamediv>\n";
print " <refname>\n";
print " ${file}\n";
print " </refname>\n";
print " <refpurpose>\n";
print " Document generation inconsistency\n";
print " </refpurpose>\n";
print " </refnamediv>\n";
print " <refsect1>\n";
print " <title>\n";
print " Oops\n";
print " </title>\n";
print " <warning>\n";
print " <para>\n";
print " The template for this document tried to insert\n";
print " the structured comment from the file\n";
print " <filename>${file}</filename> at this point,\n";
print " but none was found.\n";
print " This dummy section is inserted to allow\n";
print " generation to continue.\n";
print " </para>\n";
print " </warning>\n";
print " </refsect1>\n";
print "</refentry>\n";
}
}
}
$kernelversion = get_kernel_version();
# generate a sequence of code that will splice in highlighting information
# using the s// operator.
foreach my $pattern (keys %highlights) {
# print STDERR "scanning pattern:$pattern, highlight:($highlights{$pattern})\n";
$dohighlight .= "\$contents =~ s:$pattern:$highlights{$pattern}: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} = $absname;
}
close(SOURCE_MAP);
}
foreach (@ARGV) {
chomp;
process_file($_);
}
if ($verbose && $errors) {
print STDERR "$errors errors\n";
}
if ($verbose && $warnings) {
print STDERR "$warnings warnings\n";
}
exit($errors);