bb0cfeb2d4
This commit was generated using the following script: # ======================== #!/bin/sh git ls-files | grep -v '^ChangeLog' | xargs sed -b -E -i ' s/((check|crypto|full|mbedtls|query)_config)\.h/\1\nh/g s/config\.h/mbedtls_config.h/g y/\n/./ ' mv include/mbedtls/config.h include/mbedtls/mbedtls_config.h # ======================== Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
93 lines
3.6 KiB
Perl
Executable File
93 lines
3.6 KiB
Perl
Executable File
#! /usr/bin/env perl
|
|
|
|
# Generate query_config.c
|
|
#
|
|
# The file query_config.c contains a C function that can be used to check if
|
|
# a configuration macro is defined and to retrieve its expansion in string
|
|
# form (if any). This facilitates querying the compile time configuration of
|
|
# the library, for example, for testing.
|
|
#
|
|
# The query_config.c is generated from the current configuration at
|
|
# include/mbedtls/mbedtls_config.h. The idea is that the mbedtls_config.h contains ALL the
|
|
# compile time configurations available in Mbed TLS (commented or uncommented).
|
|
# This script extracts the configuration macros from the mbedtls_config.h and this
|
|
# information is used to automatically generate the body of the query_config()
|
|
# function by using the template in scripts/data_files/query_config.fmt.
|
|
#
|
|
# Usage: ./scripts/generate_query_config.pl without arguments
|
|
#
|
|
# Copyright The Mbed TLS Contributors
|
|
# SPDX-License-Identifier: Apache-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.
|
|
|
|
use strict;
|
|
|
|
my $config_file = "./include/mbedtls/mbedtls_config.h";
|
|
|
|
my $query_config_format_file = "./scripts/data_files/query_config.fmt";
|
|
my $query_config_file = "./programs/test/query_config.c";
|
|
|
|
unless( -f $config_file && -f $query_config_format_file ) {
|
|
chdir '..' or die;
|
|
-f $config_file && -f $query_config_format_file
|
|
or die "Without arguments, must be run from root or a subdirectory\n";
|
|
}
|
|
|
|
# Excluded macros from the generated query_config.c. For example, macros that
|
|
# have commas or function-like macros cannot be transformed into strings easily
|
|
# using the preprocessor, so they should be excluded or the preprocessor will
|
|
# throw errors.
|
|
my @excluded = qw(
|
|
MBEDTLS_SSL_CIPHERSUITES
|
|
);
|
|
my $excluded_re = join '|', @excluded;
|
|
|
|
open(CONFIG_FILE, "$config_file") or die "Opening config file '$config_file': $!";
|
|
|
|
# This variable will contain the string to replace in the CHECK_CONFIG of the
|
|
# format file
|
|
my $config_check = "";
|
|
|
|
while (my $line = <CONFIG_FILE>) {
|
|
if ($line =~ /^(\/\/)?\s*#\s*define\s+(MBEDTLS_\w+).*/) {
|
|
my $name = $2;
|
|
|
|
# Skip over the macro if it is in the ecluded list
|
|
next if $name =~ /$excluded_re/;
|
|
|
|
$config_check .= "#if defined($name)\n";
|
|
$config_check .= " if( strcmp( \"$name\", config ) == 0 )\n";
|
|
$config_check .= " {\n";
|
|
$config_check .= " MACRO_EXPANSION_TO_STR( $name );\n";
|
|
$config_check .= " return( 0 );\n";
|
|
$config_check .= " }\n";
|
|
$config_check .= "#endif /* $name */\n";
|
|
$config_check .= "\n";
|
|
}
|
|
}
|
|
|
|
# Read the full format file into a string
|
|
local $/;
|
|
open(FORMAT_FILE, "$query_config_format_file") or die "Opening query config format file '$query_config_format_file': $!";
|
|
my $query_config_format = <FORMAT_FILE>;
|
|
close(FORMAT_FILE);
|
|
|
|
# Replace the body of the query_config() function with the code we just wrote
|
|
$query_config_format =~ s/CHECK_CONFIG/$config_check/g;
|
|
|
|
# Rewrite the query_config.c file
|
|
open(QUERY_CONFIG_FILE, ">$query_config_file") or die "Opening destination file '$query_config_file': $!";
|
|
print QUERY_CONFIG_FILE $query_config_format;
|
|
close(QUERY_CONFIG_FILE);
|