pineapple/externals/mbedtls/scripts/generate_features.pl

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2020-12-28 16:15:37 +01:00
#!/usr/bin/env perl
#
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# Copyright The Mbed TLS Contributors
# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
#
# This file is provided under the Apache License 2.0, or the
# GNU General Public License v2.0 or later.
#
# **********
# Apache License 2.0:
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# **********
#
# **********
# GNU General Public License v2.0 or later:
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# **********
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use strict;
my ($include_dir, $data_dir, $feature_file);
if( @ARGV ) {
die "Invalid number of arguments" if scalar @ARGV != 3;
($include_dir, $data_dir, $feature_file) = @ARGV;
-d $include_dir or die "No such directory: $include_dir\n";
-d $data_dir or die "No such directory: $data_dir\n";
} else {
$include_dir = 'include/mbedtls';
$data_dir = 'scripts/data_files';
$feature_file = 'library/version_features.c';
unless( -d $include_dir && -d $data_dir ) {
chdir '..' or die;
-d $include_dir && -d $data_dir
or die "Without arguments, must be run from root or scripts\n"
}
}
my $feature_format_file = $data_dir.'/version_features.fmt';
my @sections = ( "System support", "mbed TLS modules",
"mbed TLS feature support" );
my $line_separator = $/;
undef $/;
open(FORMAT_FILE, "$feature_format_file") or die "Opening feature format file '$feature_format_file': $!";
my $feature_format = <FORMAT_FILE>;
close(FORMAT_FILE);
$/ = $line_separator;
open(CONFIG_H, "$include_dir/config.h") || die("Failure when opening config.h: $!");
my $feature_defines = "";
my $in_section = 0;
while (my $line = <CONFIG_H>)
{
next if ($in_section && $line !~ /#define/ && $line !~ /SECTION/);
next if (!$in_section && $line !~ /SECTION/);
if ($in_section) {
if ($line =~ /SECTION/) {
$in_section = 0;
next;
}
my ($define) = $line =~ /#define (\w+)/;
$feature_defines .= "#if defined(${define})\n";
$feature_defines .= " \"${define}\",\n";
$feature_defines .= "#endif /* ${define} */\n";
}
if (!$in_section) {
my ($section_name) = $line =~ /SECTION: ([\w ]+)/;
my $found_section = grep $_ eq $section_name, @sections;
$in_section = 1 if ($found_section);
}
};
$feature_format =~ s/FEATURE_DEFINES\n/$feature_defines/g;
open(ERROR_FILE, ">$feature_file") or die "Opening destination file '$feature_file': $!";
print ERROR_FILE $feature_format;
close(ERROR_FILE);