mirror of
https://github.com/Mbed-TLS/mbedtls.git
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80 lines
2.4 KiB
Perl
Executable File
80 lines
2.4 KiB
Perl
Executable File
#!/usr/bin/env perl
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#
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# Copyright The Mbed TLS Contributors
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# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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use strict;
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my ($include_dir, $data_dir, $feature_file);
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if( @ARGV ) {
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die "Invalid number of arguments" if scalar @ARGV != 3;
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($include_dir, $data_dir, $feature_file) = @ARGV;
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-d $include_dir or die "No such directory: $include_dir\n";
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-d $data_dir or die "No such directory: $data_dir\n";
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} else {
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$include_dir = 'include/mbedtls';
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$data_dir = 'scripts/data_files';
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$feature_file = 'library/version_features.c';
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unless( -d $include_dir && -d $data_dir ) {
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chdir '..' or die;
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-d $include_dir && -d $data_dir
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or die "Without arguments, must be run from root or scripts\n"
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}
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}
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my $feature_format_file = $data_dir.'/version_features.fmt';
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my @sections = ( "Platform abstraction layer", "General configuration options",
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"TLS feature selection", "X.509 feature selection" );
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my $line_separator = $/;
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undef $/;
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open(FORMAT_FILE, '<:crlf', "$feature_format_file") or die "Opening feature format file '$feature_format_file': $!";
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my $feature_format = <FORMAT_FILE>;
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close(FORMAT_FILE);
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$/ = $line_separator;
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open(CONFIG_H, '<:crlf', "$include_dir/mbedtls_config.h") || die("Failure when opening mbedtls_config.h: $!");
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my $feature_defines = "";
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my $in_section = 0;
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while (my $line = <CONFIG_H>)
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{
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next if ($in_section && $line !~ /#define/ && $line !~ /SECTION/);
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next if (!$in_section && $line !~ /SECTION/);
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if ($in_section) {
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if ($line =~ /SECTION/) {
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$in_section = 0;
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next;
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}
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# Strip leading MBEDTLS_ to save binary size
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my ($mbedtls_prefix, $define) = $line =~ /#define (MBEDTLS_)?(\w+)/;
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if (!$mbedtls_prefix) {
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die "Feature does not start with 'MBEDTLS_': $line\n";
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}
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$feature_defines .= "#if defined(MBEDTLS_${define})\n";
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$feature_defines .= " \"${define}\", //no-check-names\n";
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$feature_defines .= "#endif /* MBEDTLS_${define} */\n";
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}
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if (!$in_section) {
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my ($section_name) = $line =~ /SECTION: ([\w ]+)/;
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my $found_section = grep $_ eq $section_name, @sections;
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$in_section = 1 if ($found_section);
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}
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};
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$feature_format =~ s/FEATURE_DEFINES\n/$feature_defines/g;
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open(ERROR_FILE, ">$feature_file") or die "Opening destination file '$feature_file': $!";
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print ERROR_FILE $feature_format;
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close(ERROR_FILE);
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