#!/usr/bin/perl -w
use strict;
## Copyright (c) 1998 Michael Zucchi, All Rights Reserved ##
## Copyright (C) 2000, 1 Tim Waugh ##
## Copyright (C) 2001 Simon Huggins ##
## Copyright (C) 2005-2012 Randy Dunlap ##
## ##
## #define enhancements by Armin Kuster ##
## 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
# 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
# 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
#
# 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 = '\\&((struct\s*)*[_\w]+)';
my $type_env = '(\$\w+)';
# Output conversion substitutions.
# One for each output format
# these work fairly well
my %highlights_html = ( $type_constant, "\$1",
$type_func, "\$1",
$type_struct_xml, "\$1",
$type_env, "\$1",
$type_param, "\$1" );
my $local_lt = "\\\\\\\\lt:";
my $local_gt = "\\\\\\\\gt:";
my $blankline_html = $local_lt . "p" . $local_gt; # was ""
# XML, docbook format
my %highlights_xml = ( "([^=])\\\"([^\\\" ";
output_highlight($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 $param so that it is one continuous string
# on @parameterlist;
# this fixes a problem where check_sections() cannot find
# a parameter like "addr[6 + 2]" because it actually appears
# as "addr[6", "+", "2]" on the parameter list;
# but it's better to maintain the param string unchanged for output,
# so just weaken the string compare in check_sections() to ignore
# "[blah" in a parameter string;
###$param =~ s/\s*//g;
push @parameterlist, $param;
$parametertypes{$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/__must_check +//;
$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/\/\\\\\\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;
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,"