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#!/usr/bin/env perl
#
# Copyright The Mbed TLS Contributors
# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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 = 'tf-psa-crypto/drivers/builtin/src/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 $/;
open(FORMAT_FILE, '<:crlf', "$feature_format_file") or die "Opening feature format file '$feature_format_file': $!";
my $feature_format = <FORMAT_FILE>;
close(FORMAT_FILE);
$/ = $line_separator;
open(CONFIG_H, '<:crlf', "$include_dir/mbedtls_config.h") || die("Failure when opening mbedtls_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/) {
$in_section = 0;
next;
}
# Strip leading MBEDTLS_ to save binary size
my ($mbedtls_prefix, $define) = $line =~ /#define (MBEDTLS_)?(\w+)/;
if (!$mbedtls_prefix) {
die "Feature does not start with 'MBEDTLS_': $line\n";
}
$feature_defines .= "#if defined(MBEDTLS_${define})\n";
$feature_defines .= " \"${define}\", //no-check-names\n";
$feature_defines .= "#endif /* MBEDTLS_${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);
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