ecb351f1c4
released under GPL v2. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
469 lines
10 KiB
Perl
Executable File
469 lines
10 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
use strict;
|
|
use Pod::Usage;
|
|
use Getopt::Long;
|
|
use File::Find;
|
|
use Fcntl ':mode';
|
|
|
|
my $help;
|
|
my $man;
|
|
my $debug;
|
|
my $prefix="Documentation/ABI";
|
|
|
|
GetOptions(
|
|
"debug|d+" => \$debug,
|
|
"dir=s" => \$prefix,
|
|
'help|?' => \$help,
|
|
man => \$man
|
|
) or pod2usage(2);
|
|
|
|
pod2usage(1) if $help;
|
|
pod2usage(-exitstatus => 0, -verbose => 2) if $man;
|
|
|
|
pod2usage(2) if (scalar @ARGV < 1 || @ARGV > 2);
|
|
|
|
my ($cmd, $arg) = @ARGV;
|
|
|
|
pod2usage(2) if ($cmd ne "search" && $cmd ne "rest" && $cmd ne "validate");
|
|
pod2usage(2) if ($cmd eq "search" && !$arg);
|
|
|
|
require Data::Dumper if ($debug);
|
|
|
|
my %data;
|
|
|
|
#
|
|
# Displays an error message, printing file name and line
|
|
#
|
|
sub parse_error($$$$) {
|
|
my ($file, $ln, $msg, $data) = @_;
|
|
|
|
print STDERR "file $file#$ln: $msg at\n\t$data";
|
|
}
|
|
|
|
#
|
|
# Parse an ABI file, storing its contents at %data
|
|
#
|
|
sub parse_abi {
|
|
my $file = $File::Find::name;
|
|
|
|
my $mode = (stat($file))[2];
|
|
return if ($mode & S_IFDIR);
|
|
return if ($file =~ m,/README,);
|
|
|
|
my $name = $file;
|
|
$name =~ s,.*/,,;
|
|
|
|
my $nametag = "File $name";
|
|
$data{$nametag}->{what} = "File $name";
|
|
$data{$nametag}->{type} = "File";
|
|
$data{$nametag}->{file} = $name;
|
|
$data{$nametag}->{filepath} = $file;
|
|
$data{$nametag}->{is_file} = 1;
|
|
|
|
my $type = $file;
|
|
$type =~ s,.*/(.*)/.*,$1,;
|
|
|
|
my $what;
|
|
my $new_what;
|
|
my $tag;
|
|
my $ln;
|
|
my $xrefs;
|
|
my $space;
|
|
my @labels;
|
|
my $label;
|
|
|
|
print STDERR "Opening $file\n" if ($debug > 1);
|
|
open IN, $file;
|
|
while(<IN>) {
|
|
$ln++;
|
|
if (m/^(\S+)(:\s*)(.*)/i) {
|
|
my $new_tag = lc($1);
|
|
my $sep = $2;
|
|
my $content = $3;
|
|
|
|
if (!($new_tag =~ m/(what|where|date|kernelversion|contact|description|users)/)) {
|
|
if ($tag eq "description") {
|
|
# New "tag" is actually part of
|
|
# description. Don't consider it a tag
|
|
$new_tag = "";
|
|
} elsif ($tag ne "") {
|
|
parse_error($file, $ln, "tag '$tag' is invalid", $_);
|
|
}
|
|
}
|
|
|
|
# Invalid, but it is a common mistake
|
|
if ($new_tag eq "where") {
|
|
parse_error($file, $ln, "tag 'Where' is invalid. Should be 'What:' instead", $_);
|
|
$new_tag = "what";
|
|
}
|
|
|
|
if ($new_tag =~ m/what/) {
|
|
$space = "";
|
|
if ($tag =~ m/what/) {
|
|
$what .= ", " . $content;
|
|
} else {
|
|
parse_error($file, $ln, "What '$what' doesn't have a description", "") if ($what && !$data{$what}->{description});
|
|
|
|
$what = $content;
|
|
$label = $content;
|
|
$new_what = 1;
|
|
}
|
|
push @labels, [($content, $label)];
|
|
$tag = $new_tag;
|
|
|
|
push @{$data{$nametag}->{xrefs}}, [($content, $label)] if ($data{$nametag}->{what});
|
|
next;
|
|
}
|
|
|
|
if ($tag ne "" && $new_tag) {
|
|
$tag = $new_tag;
|
|
|
|
if ($new_what) {
|
|
@{$data{$what}->{label}} = @labels if ($data{$nametag}->{what});
|
|
@labels = ();
|
|
$label = "";
|
|
$new_what = 0;
|
|
|
|
$data{$what}->{type} = $type;
|
|
$data{$what}->{file} = $name;
|
|
$data{$what}->{filepath} = $file;
|
|
print STDERR "\twhat: $what\n" if ($debug > 1);
|
|
}
|
|
|
|
if (!$what) {
|
|
parse_error($file, $ln, "'What:' should come first:", $_);
|
|
next;
|
|
}
|
|
if ($tag eq "description") {
|
|
next if ($content =~ m/^\s*$/);
|
|
if ($content =~ m/^(\s*)(.*)/) {
|
|
my $new_content = $2;
|
|
$space = $new_tag . $sep . $1;
|
|
while ($space =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {}
|
|
$space =~ s/./ /g;
|
|
$data{$what}->{$tag} .= "$new_content\n";
|
|
}
|
|
} else {
|
|
$data{$what}->{$tag} = $content;
|
|
}
|
|
next;
|
|
}
|
|
}
|
|
|
|
# Store any contents before tags at the database
|
|
if (!$tag && $data{$nametag}->{what}) {
|
|
$data{$nametag}->{description} .= $_;
|
|
next;
|
|
}
|
|
|
|
if ($tag eq "description") {
|
|
if (!$data{$what}->{description}) {
|
|
next if (m/^\s*\n/);
|
|
if (m/^(\s*)(.*)/) {
|
|
$space = $1;
|
|
while ($space =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {}
|
|
$data{$what}->{$tag} .= "$2\n";
|
|
}
|
|
} else {
|
|
my $content = $_;
|
|
if (m/^\s*\n/) {
|
|
$data{$what}->{$tag} .= $content;
|
|
next;
|
|
}
|
|
|
|
while ($content =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {}
|
|
$space = "" if (!($content =~ s/^($space)//));
|
|
|
|
# Compress spaces with tabs
|
|
$content =~ s<^ {8}> <\t>;
|
|
$content =~ s<^ {1,7}\t> <\t>;
|
|
$content =~ s< {1,7}\t> <\t>;
|
|
$data{$what}->{$tag} .= $content;
|
|
}
|
|
next;
|
|
}
|
|
if (m/^\s*(.*)/) {
|
|
$data{$what}->{$tag} .= "\n$1";
|
|
$data{$what}->{$tag} =~ s/\n+$//;
|
|
next;
|
|
}
|
|
|
|
# Everything else is error
|
|
parse_error($file, $ln, "Unexpected line:", $_);
|
|
}
|
|
$data{$nametag}->{description} =~ s/^\n+//;
|
|
close IN;
|
|
}
|
|
|
|
#
|
|
# Outputs the book on ReST format
|
|
#
|
|
|
|
my %labels;
|
|
|
|
sub output_rest {
|
|
foreach my $what (sort {
|
|
($data{$a}->{type} eq "File") cmp ($data{$b}->{type} eq "File") ||
|
|
$a cmp $b
|
|
} keys %data) {
|
|
my $type = $data{$what}->{type};
|
|
my $file = $data{$what}->{file};
|
|
my $filepath = $data{$what}->{filepath};
|
|
|
|
my $w = $what;
|
|
$w =~ s/([\(\)\_\-\*\=\^\~\\])/\\$1/g;
|
|
|
|
|
|
foreach my $p (@{$data{$what}->{label}}) {
|
|
my ($content, $label) = @{$p};
|
|
$label = "abi_" . $label . " ";
|
|
$label =~ tr/A-Z/a-z/;
|
|
|
|
# Convert special chars to "_"
|
|
$label =~s/([\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\xff])/_/g;
|
|
$label =~ s,_+,_,g;
|
|
$label =~ s,_$,,;
|
|
|
|
# Avoid duplicated labels
|
|
while (defined($labels{$label})) {
|
|
my @chars = ("A".."Z", "a".."z");
|
|
$label .= $chars[rand @chars];
|
|
}
|
|
$labels{$label} = 1;
|
|
|
|
$data{$what}->{label} .= $label;
|
|
|
|
printf ".. _%s:\n\n", $label;
|
|
|
|
# only one label is enough
|
|
last;
|
|
}
|
|
|
|
|
|
$filepath =~ s,.*/(.*/.*),\1,;;
|
|
$filepath =~ s,[/\-],_,g;;
|
|
my $fileref = "abi_file_".$filepath;
|
|
|
|
if ($type eq "File") {
|
|
my $bar = $w;
|
|
$bar =~ s/./-/g;
|
|
|
|
print ".. _$fileref:\n\n";
|
|
print "$w\n$bar\n\n";
|
|
} else {
|
|
my @names = split /\s*,\s*/,$w;
|
|
|
|
my $len = 0;
|
|
|
|
foreach my $name (@names) {
|
|
$len = length($name) if (length($name) > $len);
|
|
}
|
|
|
|
print "What:\n\n";
|
|
|
|
print "+-" . "-" x $len . "-+\n";
|
|
foreach my $name (@names) {
|
|
printf "| %s", $name . " " x ($len - length($name)) . " |\n";
|
|
print "+-" . "-" x $len . "-+\n";
|
|
}
|
|
print "\n";
|
|
}
|
|
|
|
print "Defined on file :ref:`$file <$fileref>`\n\n" if ($type ne "File");
|
|
|
|
my $desc = $data{$what}->{description};
|
|
$desc =~ s/^\s+//;
|
|
|
|
# Remove title markups from the description, as they won't work
|
|
$desc =~ s/\n[\-\*\=\^\~]+\n/\n/g;
|
|
|
|
if (!($desc =~ /^\s*$/)) {
|
|
if ($desc =~ m/\:\n/ || $desc =~ m/\n[\t ]+/ || $desc =~ m/[\x00-\x08\x0b-\x1f\x7b-\xff]/) {
|
|
# put everything inside a code block
|
|
$desc =~ s/\n/\n /g;
|
|
|
|
print "::\n\n";
|
|
print " $desc\n\n";
|
|
} else {
|
|
# Escape any special chars from description
|
|
$desc =~s/([\x00-\x08\x0b-\x1f\x21-\x2a\x2d\x2f\x3c-\x40\x5c\x5e-\x60\x7b-\xff])/\\$1/g;
|
|
|
|
print "$desc\n\n";
|
|
}
|
|
} else {
|
|
print "DESCRIPTION MISSING for $what\n\n" if (!$data{$what}->{is_file});
|
|
}
|
|
|
|
if ($data{$what}->{xrefs}) {
|
|
printf "Has the following ABI:\n\n";
|
|
|
|
foreach my $p(@{$data{$what}->{xrefs}}) {
|
|
my ($content, $label) = @{$p};
|
|
$label = "abi_" . $label . " ";
|
|
$label =~ tr/A-Z/a-z/;
|
|
|
|
# Convert special chars to "_"
|
|
$label =~s/([\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\xff])/_/g;
|
|
$label =~ s,_+,_,g;
|
|
$label =~ s,_$,,;
|
|
|
|
# Escape special chars from content
|
|
$content =~s/([\x00-\x1f\x21-\x2f\x3a-\x40\x7b-\xff])/\\$1/g;
|
|
|
|
print "- :ref:`$content <$label>`\n\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#
|
|
# Searches for ABI symbols
|
|
#
|
|
sub search_symbols {
|
|
foreach my $what (sort keys %data) {
|
|
next if (!($what =~ m/($arg)/));
|
|
|
|
my $type = $data{$what}->{type};
|
|
next if ($type eq "File");
|
|
|
|
my $file = $data{$what}->{filepath};
|
|
|
|
my $bar = $what;
|
|
$bar =~ s/./-/g;
|
|
|
|
print "\n$what\n$bar\n\n";
|
|
|
|
my $kernelversion = $data{$what}->{kernelversion};
|
|
my $contact = $data{$what}->{contact};
|
|
my $users = $data{$what}->{users};
|
|
my $date = $data{$what}->{date};
|
|
my $desc = $data{$what}->{description};
|
|
$kernelversion =~ s/^\s+//;
|
|
$contact =~ s/^\s+//;
|
|
$users =~ s/^\s+//;
|
|
$users =~ s/\n//g;
|
|
$date =~ s/^\s+//;
|
|
$desc =~ s/^\s+//;
|
|
|
|
printf "Kernel version:\t\t%s\n", $kernelversion if ($kernelversion);
|
|
printf "Date:\t\t\t%s\n", $date if ($date);
|
|
printf "Contact:\t\t%s\n", $contact if ($contact);
|
|
printf "Users:\t\t\t%s\n", $users if ($users);
|
|
print "Defined on file:\t$file\n\n";
|
|
print "Description:\n\n$desc";
|
|
}
|
|
}
|
|
|
|
|
|
#
|
|
# Parses all ABI files located at $prefix dir
|
|
#
|
|
find({wanted =>\&parse_abi, no_chdir => 1}, $prefix);
|
|
|
|
print STDERR Data::Dumper->Dump([\%data], [qw(*data)]) if ($debug);
|
|
|
|
#
|
|
# Handles the command
|
|
#
|
|
if ($cmd eq "rest") {
|
|
output_rest;
|
|
} elsif ($cmd eq "search") {
|
|
search_symbols;
|
|
}
|
|
|
|
|
|
__END__
|
|
|
|
=head1 NAME
|
|
|
|
abi_book.pl - parse the Linux ABI files and produce a ReST book.
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
B<abi_book.pl> [--debug] [--man] [--help] [--dir=<dir>] <COMAND> [<ARGUMENT>]
|
|
|
|
Where <COMMAND> can be:
|
|
|
|
=over 8
|
|
|
|
B<search> [SEARCH_REGEX] - search for [SEARCH_REGEX] inside ABI
|
|
|
|
B<rest> - output the ABI in ReST markup language
|
|
|
|
B<validate> - validate the ABI contents
|
|
|
|
=back
|
|
|
|
=head1 OPTIONS
|
|
|
|
=over 8
|
|
|
|
=item B<--dir>
|
|
|
|
Changes the location of the ABI search. By default, it uses
|
|
the Documentation/ABI directory.
|
|
|
|
=item B<--debug>
|
|
|
|
Put the script in verbose mode, useful for debugging. Can be called multiple
|
|
times, to increase verbosity.
|
|
|
|
=item B<--help>
|
|
|
|
Prints a brief help message and exits.
|
|
|
|
=item B<--man>
|
|
|
|
Prints the manual page and exits.
|
|
|
|
=back
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
Parse the Linux ABI files from ABI DIR (usually located at Documentation/ABI),
|
|
allowing to search for ABI symbols or to produce a ReST book containing
|
|
the Linux ABI documentation.
|
|
|
|
=head1 EXAMPLES
|
|
|
|
Search for all stable symbols with the word "usb":
|
|
|
|
=over 8
|
|
|
|
$ scripts/get_abi.pl search usb --dir Documentation/ABI/stable
|
|
|
|
=back
|
|
|
|
Search for all symbols that match the regex expression "usb.*cap":
|
|
|
|
=over 8
|
|
|
|
$ scripts/get_abi.pl search usb.*cap
|
|
|
|
=back
|
|
|
|
Output all obsoleted symbols in ReST format
|
|
|
|
=over 8
|
|
|
|
$ scripts/get_abi.pl rest --dir Documentation/ABI/obsolete
|
|
|
|
=back
|
|
|
|
=head1 BUGS
|
|
|
|
Report bugs to Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright (c) 2016-2019 by Mauro Carvalho Chehab <mchehab+samsung@kernel.org>.
|
|
|
|
License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>.
|
|
|
|
This is free software: you are free to change and redistribute it.
|
|
There is NO WARRANTY, to the extent permitted by law.
|
|
|
|
=cut
|