mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-12-23 09:35:39 +00:00
Adds option to config.pl to force config changes
The script config.pl fails when setting a #define symbol if the symbol isn't already in the configuration header. This adds an option '--force' to append the symbol to the end of the file if it isn't already present. Also clarified usage, and added copyright to the config.pl.
This commit is contained in:
SimonB
parent
a7ffc8f739
commit
60f2cf93f5
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@ -1,22 +1,73 @@
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#!/usr/bin/perl
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# Tune the configuration file
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#
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# This file is part of mbed TLS (https://tls.mbed.org)
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#
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# Copyright (c) 2014-2016, ARM Limited, All Rights Reserved
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#
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# Purpose
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#
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# Comments and uncomments #define lines in the given header file and optionally
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# sets their value. This is to provide scripting control of what preprocessor
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# symbols, and therefore what build time configuration flags are set in the
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# 'config.h' file.
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#
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# Usage: config.pl [-f <file> | --file <file>] [-o | --force]
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# [set <symbol> <value> | unset <symbol> | full | realfull]
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#
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# Full usage description provided below.
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#
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# Things that shouldn't be enabled with "full".
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#
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# MBEDTLS_DEPRECATED_REMOVED
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# MBEDTLS_HAVE_SSE2
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# MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
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# MBEDTLS_ECP_DP_M221_ENABLED
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# MBEDTLS_ECP_DP_M383_ENABLED
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# MBEDTLS_ECP_DP_M511_ENABLED
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# MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
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# MBEDTLS_NO_PLATFORM_ENTROPY
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# MBEDTLS_REMOVE_ARC4_CIPHERSUITES
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# MBEDTLS_SSL_HW_RECORD_ACCEL
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# MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
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# MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
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# - this could be enabled if the respective tests were adapted
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# MBEDTLS_ZLIB_SUPPORT
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# MBEDTLS_PKCS11_C
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# and any symbol beginning _ALT
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#
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use warnings;
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use strict;
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my $config_file = "include/mbedtls/config.h";
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my $usage = <<EOU;
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$0 [-f <file>] unset <name>
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$0 [-f <file>] set <name> [<value>]
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EOU
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# for our eyes only:
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# $0 [-f <file>] full|realfull
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$0 [-f <file> | --file <file>] [-o | --force]
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[set <symbol> <value> | unset <symbol> | full | realfull]
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Commands
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set <symbol> [<value] - Uncomments or adds a #define for the <symnol> to
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the configuration file, and optionally making it
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of <value>.
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If the symbol isn't present in the file an error
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is returned.
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unset <symbol> - Comments out any #define present in the
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configuration file.
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full - Uncomments all #define's in the configuration file
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excluding some reserved symbols, until the
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'Module configuration options' section
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realfull - Uncomments all #define's with no exclusions
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Options
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-f | --file <filename> - The file or file path for the configuration file
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to edit. When omitted, the following default is
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used:
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$config_file
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-o | --force - If the symbol isn't present in the configuration
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file when setting it's value, a #define is
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appended to the end of the file.
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EOU
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# Things that shouldn't be enabled with "full".
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# Notes:
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# - MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 and
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# MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION could be enabled if the
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# respective tests were adapted
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my @excluded = qw(
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MBEDTLS_DEPRECATED_REMOVED
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MBEDTLS_HAVE_SSE2
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@ -40,40 +91,65 @@ my @non_excluded = qw(
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PLATFORM_[A-Z0-9]+_ALT
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);
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my $config_file = "include/mbedtls/config.h";
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# Process the command line arguments
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# get -f option
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if (@ARGV >= 2 && $ARGV[0] eq "-f") {
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shift; # -f
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$config_file = shift;
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my $force_option = 0;
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-f $config_file or die "No such file: $config_file\n";
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} else {
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if (! -f $config_file) {
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chdir '..' or die;
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-f $config_file
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or die "Without -f, must be run from root or scripts\n"
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my ($arg, $name, $value, $action);
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while ( $arg = shift) {
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# Check if the argument is an option
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if ( $arg eq "-f" || $arg eq "--file" ) {
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$config_file = shift;
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-f $config_file or die "No such file: $config_file\n";
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}
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elsif ( $arg eq "-o" || $arg eq "--force" ) {
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$force_option = 1;
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}
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else
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{
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# ...else assume it's a command
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$action = $arg;
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if ($action eq "full" || $action eq "realfull") {
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# No additional parameters
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die $usage if @ARGV;
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}
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elsif ($action eq "unset") {
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die $usage unless @ARGV;
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$name = shift;
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}
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elsif ($action eq "set") {
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die $usage unless @ARGV;
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$name = shift;
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$value = shift if @ARGV;
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}
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else {
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die "Command '$action' not recognised.\n\n".$usage;
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}
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}
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}
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# get action
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die $usage unless @ARGV;
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my $action = shift;
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# Check the config file is present
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if (! -f $config_file) {
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my ($name, $value);
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if ($action eq "full" || $action eq "realfull") {
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# nothing to do
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} elsif ($action eq "unset") {
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die $usage unless @ARGV;
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$name = shift;
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} elsif ($action eq "set") {
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die $usage unless @ARGV;
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$name = shift;
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$value = shift if @ARGV;
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} else {
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die $usage;
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chdir '..' or die;
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# Confirm this is the project root directory and try again
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if ( !(-d 'scripts' && -d 'include' && -d 'library' && -f $config_file) ) {
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die "If no file specified, must be run from the project root or scripts directory.\n";
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}
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}
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die $usage if @ARGV;
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# Now read the file and process the contents
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open my $config_read, '<', $config_file or die "read $config_file: $!\n";
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my @config_lines = <$config_read>;
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@ -122,9 +198,27 @@ for my $line (@config_lines) {
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print $config_write $line;
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}
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# Did the set command work?
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if ($action eq "set"&& $force_option && !$done) {
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# If the force option was set, append the symbol to the end of the file
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my $line = "#define $name";
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$line .= " $value" if defined $value && $value ne "";
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$line .= "\n";
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$done = 1;
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print $config_write $line;
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}
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close $config_write;
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die "configuration section not found" if ($action eq "full" && !$done);
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die "$name not found" if ($action ne "full" && !$done);
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if ($action eq "full" && !$done) {
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die "Configuration section was not found in $config_file\n";
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}
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if ($action ne "full" && $action ne "unset" && !$done) {
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die "A #define for the symbol $name was not found in $config_file\n";
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}
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__END__
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