# Note: This only supports 'c'.
# usage:
-# kerneldoc [ -docbook | -html | -text | -man ]
+# kernel-doc [ -docbook | -html | -text | -man ]
# [ -function funcname [ -function funcname ...] ] c file(s)s > outputfile
# or
# [ -nofunction funcname [ -function funcname ...] ] c file(s)s > outputfile
# other functions are ignored.
#
# -nofunction funcname
-# If set, then only generate documentation for the other function(s). All
-# other functions are ignored. Cannot be used with -function together
-# (yes thats a bug - perl hackers can fix it 8))
+# If set, then only generate documentation for the other function(s).
+# 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
#
# * my_function - does my stuff
# * @my_arg: its mine damnit
# *
-# * Does my stuff explained.
+# * Does my stuff explained.
# */
#
# or, could also use:
# /**
# * my_function - does my stuff
# * @my_arg: its mine damnit
-# * Description: Does my stuff explained.
+# * Description: Does my stuff explained.
# */
# etc.
#
-# Beside 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.
+# Beside 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
+#
+# 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
+# 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);
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]] .
+my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
+ 'July', 'August', 'September', 'October',
+ 'November', 'December')[(localtime)[4]] .
" " . ((localtime)[5]+1900);
# Essentially these are globals
my ($type,$declaration_name,$return_type);
my ($newsection,$newcontents,$prototype,$filelist, $brcount, %source_map);
-# Generated docbook code is inserted in a template at a point where
+# 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
# 3 - scanning prototype.
# 4 - documentation block
my $state;
+my $in_doc_sect;
#declaration types: can be
# 'function', 'struct', 'union', 'enum', 'typedef'
# parameterdescs => %parameter descriptions
# sectionlist => @list of sections
# sections => %descriont descriptions
-#
+#
sub output_highlight {
my $contents = join "\n",@_;
print "<blockquote>\n";
output_highlight($args{'sections'}{$section});
print "</blockquote>\n";
- }
+ }
}
# output enum in html
print "<hr>\n";
}
-# output tyepdef in html
+# output typedef in html
sub output_typedef_html(%) {
my %args = %{$_[0]};
my ($parameter);
sub output_section_xml(%) {
my %args = %{$_[0]};
- my $section;
+ my $section;
# print out each section
$lineprefix=" ";
foreach $section (@{$args{'sectionlist'}}) {
print "</refsynopsisdiv>\n";
print "<refsect1>\n";
- print " <title>Constants</title>\n";
+ print " <title>Constants</title>\n";
print " <variablelist>\n";
foreach $parameter (@{$args{'parameterlist'}}) {
my $parameter_name = $parameter;
# pointer-to-function
print ".BI \" ".$1."\" ".$parameter." \") (".$2.")"."\"\n;\n";
} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
- print ".BI \" ".$1."\" ".$parameter.$2." \""."\"\n;\n";
+ # bitfield
+ print ".BI \" ".$1."\ \" ".$parameter.$2." \""."\"\n;\n";
} else {
$type =~ s/([^\*])$/$1 /;
print ".BI \" ".$type."\" ".$parameter." \""."\"\n;\n";
}
print "};\n.br\n";
- print ".SH Arguments\n";
+ print ".SH Members\n";
foreach $parameter (@{$args{'parameterlist'}}) {
($parameter =~ /^#/) && next;
my %args = %{$_[0]};
my ($parameter, $section);
- print "Function:\n\n";
+ print "Name:\n\n";
+ print $args{'function'}." - ".$args{'purpose'}."\n";
+
+ print "\nSynopsis:\n\n";
my $start=$args{'functiontype'}." ".$args{'function'}." (";
print $start;
my $count = 0;
foreach $section (@{$args{'sectionlist'}}) {
print "$section:\n\n";
output_highlight($args{'sections'}{$section});
- }
+ }
print "\n\n";
}
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'}}) {
my $count;
print "Typedef:\n\n";
- print "typedef ".$args{'typedef'}."\n";
+ print "typedef ".$args{'typedef'}." - ".$args{'purpose'}."\n";
output_section_text(@_);
}
my %args = %{$_[0]};
my ($parameter);
- print $args{'type'}." ".$args{'struct'}.":\n\n";
+ print $args{'type'}." ".$args{'struct'}." - ".$args{'purpose'}."\n\n";
print $args{'type'}." ".$args{'struct'}." {\n";
foreach $parameter (@{$args{'parameterlist'}}) {
if ($parameter =~ /^#/) {
}
##
-# generic output function for typedefs
+# 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{$name})) ||
+ if (($function_only==0) ||
+ ( $function_only == 1 && defined($function_table{$name})) ||
( $function_only == 2 && !defined($function_table{$name})))
{
&$func(@_);
}
##
-# generic output function - calls the right one based
-# on current output mode.
+# generic output function - calls the right one based on current output mode.
sub output_intro {
no strict 'refs';
my $func = "output_intro_".$output_mode;
}
##
-# takes a declaration (struct, union, enum, typedef) and
+# takes a declaration (struct, union, enum, typedef) and
# invokes the right handler. NOT called for functions.
sub dump_declaration($$) {
no strict 'refs';
# ignore embedded structs or unions
$members =~ s/{.*?}//g;
+ # ignore members marked private:
+ $members =~ s/\/\*.*?private:.*?public:.*?\*\///gos;
+ $members =~ s/\/\*.*?private:.*//gos;
+ # strip comments:
+ $members =~ s/\/\*.*?\*\///gos;
+
create_parameterlist($members, ';', $file);
output_declaration($declaration_name,
my $x = shift;
my $file = shift;
+ $x =~ s@/\*.*?\*/@@gos; # strip comments.
if ($x =~ /enum\s+(\w+)\s*{(.*)}/) {
$declaration_name = $1;
my $members = $2;
}
}
-
+
output_declaration($declaration_name,
'enum',
{'enum' => $declaration_name,
my $x = shift;
my $file = shift;
+ $x =~ s@/\*.*?\*/@@gos; # strip comments.
while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
$x =~ s/\(*.\)\s*;$/;/;
$x =~ s/\[*.\]\s*;$/;/;
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
$arg =~ s/\/\*.*\*\///;
# corresponding data structures "correctly". Catch it later in
# output_* subs.
push_parameter($arg, "", $file);
- } elsif ($arg =~ m/\(/) {
+ } elsif ($arg =~ m/\(.*\*/) {
# pointer-to-function
$arg =~ tr/#/,/;
$arg =~ m/[^\(]+\(\*([^\)]+)\)/;
$type = $arg;
$type =~ s/([^\(]+\(\*)$param/$1/;
push_parameter($param, $type, $file);
- } else {
+ } elsif ($arg) {
$arg =~ s/\s*:\s*/:/g;
$arg =~ s/\s*\[/\[/g;
my $param = shift;
my $type = shift;
my $file = shift;
+ my $anon = 0;
my $param_name = $param;
$param_name =~ s/\[.*//;
- if ($type eq "" && $param eq "...")
+ if ($type eq "" && $param =~ /\.\.\.$/)
{
$type="";
- $param="...";
- $parameterdescs{"..."} = "variable arguments";
+ $parameterdescs{$param} = "variable arguments";
}
elsif ($type eq "" && ($param eq "" or $param eq "void"))
{
$param="void";
$parameterdescs{void} = "no arguments";
}
- if (defined $type && $type && !defined $parameterdescs{$param_name}) {
+ 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";
+ $anon = 1;
+ }
+
+ # warn if parameter has no description
+ # (but ignore ones starting with # as these are not parameters
+ # but inline preprocessor statements);
+ # also ignore unnamed structs/unions;
+ if (!$anon) {
+ if (!defined $parameterdescs{$param_name} && $param_name !~ /^#/) {
+
$parameterdescs{$param_name} = $undescribed;
if (($type eq 'function') || ($type eq 'enum')) {
" No description found for parameter '$param'\n";
++$warnings;
}
+ }
push @parameterlist, $param;
$parametertypes{$param} = $type;
$prototype =~ s/^asmlinkage +//;
$prototype =~ s/^inline +//;
$prototype =~ s/^__inline__ +//;
+ $prototype =~ s/^__inline +//;
+ $prototype =~ s/^__always_inline +//;
+ $prototype =~ s/^noinline +//;
+ $prototype =~ s/__devinit +//;
$prototype =~ s/^#define +//; #ak added
$prototype =~ s/__attribute__ \(\([a-z,]*\)\)//;
# the following functions' documentation still comes out right:
# - parport_register_device (function pointer parameters)
# - atomic_set (macro)
- # - pci_match_device (long return type)
+ # - 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+\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*\*)\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*\(([^\{]*)\)/) {
$return_type = $1;
$declaration_name = $2;
my $args = $3;
return;
}
- output_declaration($declaration_name,
+ output_declaration($declaration_name,
'function',
{'function' => $declaration_name,
'module' => $modulename,
%sections = ();
@sectionlist = ();
$prototype = "";
-
+
$state = 0;
}
-sub process_state3_function($$) {
+sub process_state3_function($$) {
my $x = shift;
my $file = shift;
}
}
-sub process_state3_type($$) {
+sub process_state3_type($$) {
my $x = shift;
my $file = shift;
- $x =~ s@/\*.*?\*/@@gos; # strip comments.
$x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
$x =~ s@^\s+@@gos; # strip leading spaces
$x =~ s@\s+$@@gos; # strip trailing spaces
# replace <, >, and &
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;
$text =~ s/\>/\\\\\\gt;/g;
}
sub process_file($) {
- my ($file) = "$ENV{'SRCTREE'}@_";
+ my $file;
my $identifier;
my $func;
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 ($state == 0) {
if (/$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) {
$newcontents = $2;
if ($contents ne "") {
+ if (!$in_doc_sect && $verbose) {
+ print STDERR "Warning(${file}:$.): contents before sections\n";
+ ++$warnings;
+ }
dump_section($section, xml_escape($contents));
$section = $section_default;
}
+ $in_doc_sect = 1;
$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;
$prototype = "";
$state = 3;
$brcount = 0;
-# print STDERR "end of doc comment, looking for prototype\n";
+# print STDERR "end of doc comment, looking for prototype\n";
} elsif (/$doc_content/) {
# miguel-style comment kludge, look for blank lines after
# @parameter line to signify start of description
- if ($1 eq "" &&
+ if ($1 eq "" &&
($section =~ m/^@/ || $section eq $section_context)) {
dump_section($section, xml_escape($contents));
$section = $section_default;
}
} else {
# i dont know - bad line? ignore.
- print STDERR "Warning(${file}:$.): bad line: $_";
+ print STDERR "Warning(${file}:$.): bad line: $_";
++$warnings;
}
- } elsif ($state == 3) { # scanning for function { (end of prototype)
+ } elsif ($state == 3) { # scanning for function '{' (end of prototype)
if ($decl_type eq 'function') {
process_state3_function($_, $file);
} else {
else
{
$contents .= $1 . "\n";
- }
+ }
}
}
}
git://git.onelab.eu / linux-2.6.git / blobdiff