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-rwxr-xr-xscripts/kernel-doc134
1 files changed, 109 insertions, 25 deletions
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 9922e6688..9a08fb5c1 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -133,6 +133,30 @@ use strict;
#
# All descriptions can be multiline, except the short function description.
#
+# For really longs structs, you can also describe arguments inside the
+# body of the struct.
+# eg.
+# /**
+# * struct my_struct - short description
+# * @a: first member
+# * @b: second member
+# *
+# * Longer description
+# */
+# struct my_struct {
+# int a;
+# int b;
+# /**
+# * @c: This is longer description of C
+# *
+# * You can use paragraphs to describe arguments
+# * using this method.
+# */
+# int c;
+# };
+#
+# This should be use only for struct/enum members.
+#
# 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
@@ -253,11 +277,20 @@ my %highlights = %highlights_man;
my $blankline = $blankline_man;
my $modulename = "Kernel API";
my $function_only = 0;
+my $show_not_found = 0;
+
+my @build_time;
+if (defined($ENV{'KBUILD_BUILD_TIMESTAMP'}) &&
+ (my $seconds = `date -d"${ENV{'KBUILD_BUILD_TIMESTAMP'}}" +%s`) ne '') {
+ @build_time = gmtime($seconds);
+} else {
+ @build_time = localtime;
+}
+
my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
'July', 'August', 'September', 'October',
- 'November', 'December')[(localtime)[4]] .
- " " . ((localtime)[5]+1900);
-my $show_not_found = 0;
+ 'November', 'December')[$build_time[4]] .
+ " " . ($build_time[5]+1900);
# Essentially these are globals.
# They probably want to be tidied up, made more localised or something.
@@ -287,9 +320,19 @@ my $lineprefix="";
# 2 - scanning field start.
# 3 - scanning prototype.
# 4 - documentation block
+# 5 - gathering documentation outside main block
my $state;
my $in_doc_sect;
+# Split Doc State
+# 0 - Invalid (Before start or after finish)
+# 1 - Is started (the /** was found inside a struct)
+# 2 - The @parameter header was found, start accepting multi paragraph text.
+# 3 - Finished (the */ was found)
+# 4 - Error - Comment without header was found. Spit a warning as it's not
+# proper kernel-doc and ignore the rest.
+my $split_doc_state;
+
#declaration types: can be
# 'function', 'struct', 'union', 'enum', 'typedef'
my $decl_type;
@@ -304,6 +347,9 @@ my $doc_decl = $doc_com . '(\w+)';
my $doc_sect = $doc_com . '([' . $doc_special . ']?[\w\s]+):(.*)';
my $doc_content = $doc_com_body . '(.*)';
my $doc_block = $doc_com . 'DOC:\s*(.*)?';
+my $doc_split_start = '^\s*/\*\*\s*$';
+my $doc_split_sect = '\s*\*\s*(@[\w\s]+):(.*)';
+my $doc_split_end = '^\s*\*/\s*$';
my %constants;
my %parameterdescs;
@@ -423,7 +469,7 @@ sub dump_section {
} else {
# print STDERR "other section '$name' = '$contents'\n";
if (defined($sections{$name}) && ($sections{$name} ne "")) {
- print STDERR "Error(${file}:$.): duplicate section name '$name'\n";
+ print STDERR "${file}:$.: error: duplicate section name '$name'\n";
++$errors;
}
$sections{$name} = $contents;
@@ -1753,7 +1799,9 @@ sub dump_struct($$) {
# strip kmemcheck_bitfield_{begin,end}.*;
$members =~ s/kmemcheck_bitfield_.*?;//gos;
# strip attributes
+ $members =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
$members =~ s/__aligned\s*\([^;]*\)//gos;
+ $members =~ s/\s*CRYPTO_MINALIGN_ATTR//gos;
create_parameterlist($members, ';', $file);
check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested);
@@ -1772,7 +1820,7 @@ sub dump_struct($$) {
});
}
else {
- print STDERR "Error(${file}:$.): Cannot parse struct or union!\n";
+ print STDERR "${file}:$.: error: Cannot parse struct or union!\n";
++$errors;
}
}
@@ -1793,7 +1841,7 @@ sub dump_enum($$) {
push @parameterlist, $arg;
if (!$parameterdescs{$arg}) {
$parameterdescs{$arg} = $undescribed;
- print STDERR "Warning(${file}:$.): Enum value '$arg' ".
+ print STDERR "${file}:$.: warning: Enum value '$arg' ".
"not described in enum '$declaration_name'\n";
}
@@ -1811,7 +1859,7 @@ sub dump_enum($$) {
});
}
else {
- print STDERR "Error(${file}:$.): Cannot parse enum!\n";
+ print STDERR "${file}:$.: error: Cannot parse enum!\n";
++$errors;
}
}
@@ -1839,7 +1887,7 @@ sub dump_typedef($$) {
});
}
else {
- print STDERR "Error(${file}:$.): Cannot parse typedef!\n";
+ print STDERR "${file}:$.: error: Cannot parse typedef!\n";
++$errors;
}
}
@@ -1971,11 +2019,11 @@ sub push_parameter($$$) {
$parameterdescs{$param_name} = $undescribed;
if (($type eq 'function') || ($type eq 'enum')) {
- print STDERR "Warning(${file}:$.): Function parameter ".
+ print STDERR "${file}:$.: warning: Function parameter ".
"or member '$param' not " .
"described in '$declaration_name'\n";
}
- print STDERR "Warning(${file}:$.):" .
+ print STDERR "${file}:$.: warning:" .
" No description found for parameter '$param'\n";
++$warnings;
}
@@ -2026,14 +2074,14 @@ sub check_sections($$$$$$) {
}
if ($err) {
if ($decl_type eq "function") {
- print STDERR "Warning(${file}:$.): " .
+ print STDERR "${file}:$.: warning: " .
"Excess function parameter " .
"'$sects[$sx]' " .
"description in '$decl_name'\n";
++$warnings;
} else {
if ($nested !~ m/\Q$sects[$sx]\E/) {
- print STDERR "Warning(${file}:$.): " .
+ print STDERR "${file}:$.: warning: " .
"Excess struct/union/enum/typedef member " .
"'$sects[$sx]' " .
"description in '$decl_name'\n";
@@ -2059,7 +2107,7 @@ sub check_return_section {
if (!defined($sections{$section_return}) ||
$sections{$section_return} eq "") {
- print STDERR "Warning(${file}:$.): " .
+ print STDERR "${file}:$.: warning: " .
"No description found for return value of " .
"'$declaration_name'\n";
++$warnings;
@@ -2138,7 +2186,7 @@ sub dump_function($$) {
create_parameterlist($args, ',', $file);
} else {
- print STDERR "Warning(${file}:$.): cannot understand function prototype: '$prototype'\n";
+ print STDERR "${file}:$.: warning: cannot understand function prototype: '$prototype'\n";
return;
}
@@ -2181,6 +2229,7 @@ sub reset_state {
$prototype = "";
$state = 0;
+ $split_doc_state = 0;
}
sub tracepoint_munge($) {
@@ -2202,7 +2251,7 @@ sub tracepoint_munge($) {
$tracepointargs = $1;
}
if (($tracepointname eq 0) || ($tracepointargs eq 0)) {
- print STDERR "Warning(${file}:$.): Unrecognized tracepoint format: \n".
+ print STDERR "${file}:$.: warning: Unrecognized tracepoint format: \n".
"$prototype\n";
} else {
$prototype = "static inline void trace_$tracepointname($tracepointargs)";
@@ -2401,7 +2450,7 @@ sub process_file($) {
}
if (($declaration_purpose eq "") && $verbose) {
- print STDERR "Warning(${file}:$.): missing initial short description on line:\n";
+ print STDERR "${file}:$.: warning: missing initial short description on line:\n";
print STDERR $_;
++$warnings;
}
@@ -2419,10 +2468,10 @@ sub process_file($) {
}
if ($verbose) {
- print STDERR "Info(${file}:$.): Scanning doc for $identifier\n";
+ print STDERR "${file}:$.: info: Scanning doc for $identifier\n";
}
} else {
- print STDERR "Warning(${file}:$.): Cannot understand $_ on line $.",
+ print STDERR "${file}:$.: warning: Cannot understand $_ on line $.",
" - I thought it was a doc line\n";
++$warnings;
$state = 0;
@@ -2434,7 +2483,7 @@ sub process_file($) {
if (($contents ne "") && ($contents ne "\n")) {
if (!$in_doc_sect && $verbose) {
- print STDERR "Warning(${file}:$.): contents before sections\n";
+ print STDERR "${file}:$.: warning: contents before sections\n";
++$warnings;
}
dump_section($file, $section, xml_escape($contents));
@@ -2453,7 +2502,6 @@ sub process_file($) {
}
$section = $newsection;
} elsif (/$doc_end/) {
-
if (($contents ne "") && ($contents ne "\n")) {
dump_section($file, $section, xml_escape($contents));
$section = $section_default;
@@ -2461,7 +2509,7 @@ sub process_file($) {
}
# look for doc_com + <text> + doc_end:
if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
- print STDERR "Warning(${file}:$.): suspicious ending line: $_";
+ print STDERR "${file}:$.: warning: suspicious ending line: $_";
++$warnings;
}
@@ -2491,11 +2539,47 @@ sub process_file($) {
}
} else {
# i dont know - bad line? ignore.
- print STDERR "Warning(${file}:$.): bad line: $_";
+ print STDERR "${file}:$.: warning: bad line: $_";
++$warnings;
}
+ } elsif ($state == 5) { # scanning for split parameters
+ # First line (state 1) needs to be a @parameter
+ if ($split_doc_state == 1 && /$doc_split_sect/o) {
+ $section = $1;
+ $contents = $2;
+ if ($contents ne "") {
+ while ((substr($contents, 0, 1) eq " ") ||
+ substr($contents, 0, 1) eq "\t") {
+ $contents = substr($contents, 1);
+ }
+ $contents .= "\n";
+ }
+ $split_doc_state = 2;
+ # Documentation block end */
+ } elsif (/$doc_split_end/) {
+ if (($contents ne "") && ($contents ne "\n")) {
+ dump_section($file, $section, xml_escape($contents));
+ $section = $section_default;
+ $contents = "";
+ }
+ $state = 3;
+ $split_doc_state = 0;
+ # Regular text
+ } elsif (/$doc_content/) {
+ if ($split_doc_state == 2) {
+ $contents .= $1 . "\n";
+ } elsif ($split_doc_state == 1) {
+ $split_doc_state = 4;
+ print STDERR "Warning(${file}:$.): ";
+ print STDERR "Incorrect use of kernel-doc format: $_";
+ ++$warnings;
+ }
+ }
} elsif ($state == 3) { # scanning for function '{' (end of prototype)
- if ($decl_type eq 'function') {
+ if (/$doc_split_start/) {
+ $state = 5;
+ $split_doc_state = 1;
+ } elsif ($decl_type eq 'function') {
process_state3_function($_, $file);
} else {
process_state3_type($_, $file);
@@ -2547,7 +2631,7 @@ sub process_file($) {
}
}
if ($initial_section_counter == $section_counter) {
- print STDERR "Warning(${file}): no structured comments found\n";
+ print STDERR "${file}:1: warning: no structured comments found\n";
if (($function_only == 1) && ($show_not_found == 1)) {
print STDERR " Was looking for '$_'.\n" for keys %function_table;
}
@@ -2587,7 +2671,7 @@ $kernelversion = get_kernel_version();
# generate a sequence of code that will splice in highlighting information
# using the s// operator.
-foreach my $pattern (keys %highlights) {
+foreach my $pattern (sort keys %highlights) {
# print STDERR "scanning pattern:$pattern, highlight:($highlights{$pattern})\n";
$dohighlight .= "\$contents =~ s:$pattern:$highlights{$pattern}:gs;\n";
}
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