kdump: update kdump documentation as kexec-tools-resting has been renamed kexec-tools

[safe/jmp/linux-2.6] / scripts / kernel-doc

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 8255f72..d8f77e2 100755 (executable)
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -5,7 +5,7 @@ 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) 2005-2007  Randy Dunlap                         ##
+## Copyright (C) 2005-2008  Randy Dunlap                         ##
 ##                                                              ##
 ## #define enhancements by Armin Kuster <akuster@mvista.com>    ##
 ## Copyright (c) 2000 MontaVista Software, Inc.                         ##
@@ -46,13 +46,16 @@ use strict;
 # Note: This only supports 'c'.
 
 # usage:
-# kernel-doc [ -docbook | -html | -text | -man ]
+# kernel-doc [ -docbook | -html | -text | -man ] [ -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.
 #
+#  -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.
@@ -211,10 +214,11 @@ my $blankline_text = "";
 
 
 sub usage {
-    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man ]\n";
+    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man ] [ -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;
 }
 
@@ -225,6 +229,7 @@ if ($#ARGV==-1) {
 
 my $verbose = 0;
 my $output_mode = "man";
+my $no_doc_sections = 0;
 my %highlights = %highlights_man;
 my $blankline = $blankline_man;
 my $modulename = "Kernel API";
@@ -242,6 +247,10 @@ my ($function, %function_table,%parametertypes,$declaration_purpose);
 my ($type,$declaration_name,$return_type);
 my ($newsection,$newcontents,$prototype,$filelist, $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
@@ -329,6 +338,8 @@ while ($ARGV[0] =~ m/^-(.*)/) {
        usage();
     } elsif ($cmd eq '-filelist') {
            $filelist = shift @ARGV;
+    } elsif ($cmd eq '-no-doc-sections') {
+           $no_doc_sections = 1;
     }
 }
 
@@ -355,6 +366,7 @@ foreach my $pattern (keys %highlights) {
 # dumps section contents to arrays/hashes intended for that purpose.
 #
 sub dump_section {
+    my $file = shift;
     my $name = shift;
     my $contents = join "\n", @_;
 
@@ -368,6 +380,10 @@ sub dump_section {
        $parameterdescs{$name} = $contents;
     } else {
 #      print STDERR "other section '$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;
     }
@@ -377,14 +393,19 @@ sub dump_section {
 # 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 $name, $contents;
+       dump_section($file, $name, $contents);
        output_blockhead({'sectionlist' => \@sectionlist,
                          'sections' => \%sections,
                          'module' => $modulename,
@@ -1501,13 +1522,13 @@ sub create_parameterlist($$$) {
            # corresponding data structures "correctly". Catch it later in
            # output_* subs.
            push_parameter($arg, "", $file);
-       } elsif ($arg =~ m/\(.*\*/) {
+       } elsif ($arg =~ m/\(.+\)\s*\(/) {
            # pointer-to-function
            $arg =~ tr/#/,/;
-           $arg =~ m/[^\(]+\(\*\s*([^\)]+)\)/;
+           $arg =~ m/[^\(]+\(\*?\s*(\w*)\s*\)/;
            $param = $1;
            $type = $arg;
-           $type =~ s/([^\(]+\(\*)$param/$1/;
+           $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
            push_parameter($param, $type, $file);
        } elsif ($arg) {
            $arg =~ s/\s*:\s*/:/g;
@@ -1535,7 +1556,9 @@ sub create_parameterlist($$$) {
                    push_parameter($2, "$type $1", $file);
                }
                elsif ($param =~ m/(.*?):(\d+)/) {
-                   push_parameter($1, "$type:$2", $file)
+                   if ($type ne "") { # skip unnamed bit-fields
+                       push_parameter($1, "$type:$2", $file)
+                   }
                }
                else {
                    push_parameter($param, $type, $file);
@@ -1613,7 +1636,6 @@ sub dump_function($$) {
 
     $prototype =~ s/^static +//;
     $prototype =~ s/^extern +//;
-    $prototype =~ s/^fastcall +//;
     $prototype =~ s/^asmlinkage +//;
     $prototype =~ s/^inline +//;
     $prototype =~ s/^__inline__ +//;
@@ -1621,6 +1643,7 @@ sub dump_function($$) {
     $prototype =~ s/^__always_inline +//;
     $prototype =~ s/^noinline +//;
     $prototype =~ s/__devinit +//;
+    $prototype =~ s/__init +//;
     $prototype =~ s/^#define\s+//; #ak added
     $prototype =~ s/__attribute__\s*\(\([a-z,]*\)\)//;
 
@@ -1644,7 +1667,7 @@ sub dump_function($$) {
        $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*\*+)\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*\(([^\{]*)\)/ ||
@@ -1871,6 +1894,13 @@ sub process_file($) {
                } 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/) {
@@ -1897,12 +1927,12 @@ sub process_file($) {
                $newsection = $1;
                $newcontents = $2;
 
-               if ($contents ne "") {
+               if (($contents ne "") && ($contents ne "\n")) {
                    if (!$in_doc_sect && $verbose) {
                        print STDERR "Warning(${file}:$.): contents before sections\n";
                        ++$warnings;
                    }
-                   dump_section($section, xml_escape($contents));
+                   dump_section($file, $section, xml_escape($contents));
                    $section = $section_default;
                }
 
@@ -1919,10 +1949,15 @@ sub process_file($) {
            } elsif (/$doc_end/) {
 
                if ($contents ne "") {
-                   dump_section($section, xml_escape($contents));
+                   dump_section($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 = "";
                $state = 3;
@@ -1933,7 +1968,7 @@ sub process_file($) {
                # @parameter line to signify start of description
                if ($1 eq "" &&
                        ($section =~ m/^@/ || $section eq $section_context)) {
-                   dump_section($section, xml_escape($contents));
+                   dump_section($file, $section, xml_escape($contents));
                    $section = $section_default;
                    $contents = "";
                } else {
@@ -1953,7 +1988,7 @@ sub process_file($) {
        } elsif ($state == 4) {
                # Documentation block
                if (/$doc_block/) {
-                       dump_doc_section($section, xml_escape($contents));
+                       dump_doc_section($file, $section, xml_escape($contents));
                        $contents = "";
                        $function = "";
                        %constants = ();
@@ -1971,7 +2006,7 @@ sub process_file($) {
                }
                elsif (/$doc_end/)
                {
-                       dump_doc_section($section, xml_escape($contents));
+                       dump_doc_section($file, $section, xml_escape($contents));
                        $contents = "";
                        $function = "";
                        %constants = ();