scripts/kconfig/streamline_config.pl

1 #!/usr/bin/perl -w
3 # Copyright 2005-2009 - Steven Rostedt
38 #    cd /usr/src/linux-2.6.10
39 #    cp /boot/config-2.6.10-1-686-smp .config
53 sub dprint {
60 my $uname = `uname -r`;
73 	    "file" => "/boot/config-$uname",
77 	    "file" => "/boot/vmlinuz-$uname",
78 	    "exec" => "scripts/extract-ikconfig",
79 	    "test" => "scripts/extract-ikconfig",
83 	    "exec" => "scripts/extract-ikconfig",
84 	    "test" => "scripts/extract-ikconfig",
88 	    "exec" => "scripts/extract-ikconfig",
89 	    "test" => "scripts/extract-ikconfig",
93 	    "exec" => "scripts/extract-ikconfig",
94 	    "test" => "scripts/extract-ikconfig",
98 	    "exec" => "scripts/extract-ikconfig",
99 	    "test" => "scripts/extract-ikconfig",
103 sub read_config {
105 	my $file = $conf->{"file"};
107 	next if ( ! -f "$file");
109 	if (defined($conf->{"test"})) {
110 	    `$conf->{"test"} $conf->{"file"} 2>/dev/null`;
114 	my $exec = $conf->{"exec"};
118 	open(my $infile, '-|', "$exec $file") || die "Failed to run $exec $file";
140 my @makefiles = `find $ksource -name Makefile -or -name Kbuild 2>/dev/null`;
154 sub read_kconfig {
248 	    $deps =~ s/^[^a-zA-Z0-9_]*//;
249 	    $deps =~ s/[^a-zA-Z0-9_]*$//;
251 	    my @deps = split /[^a-zA-Z0-9_]+/, $deps;
257 	    $iflevel-- if ($iflevel);
260 	} elsif (/^\s*(---)?help(---)?\s*$/ || /^(comment|choice|menu)\b/) {
272 sub convert_vars {
318 	# collect objects after obj-$(CONFIG_FOO_BAR)
319 	if (/obj-\$\((CONFIG_[^\)]*)\)\s*[+:]?=\s*(.*)/) {
329 		$obj =~ s/-/_/g;
355     if ( ! -f $lsmod_file) {
356 	if ( -f $ENV{'objtree'}."/".$lsmod_file) {
363     my $otype = ( -x $lsmod_file) ? '-|' : '<';
372 	if ( -x "$dir/lsmod" ) {
382     open($linfile, '-|', $lsmod) || die "Can not call lsmod with $lsmod";
386 	next if (/^Module/);  # Skip the first line.
394 # a loaded module. This is a direct obj-${CONFIG_FOO} += bar.o
397 foreach my $module (keys(%modules)) {
398     if (defined($objects{$module})) {
399 	my @arr = @{$objects{$module}};
401 	    $configs{$conf} = $module;
402 	    dprint "$conf added by direct ($module)\n";
414 	# Most likely, someone has a custom (binary?) module loaded.
415 	print STDERR "$module config not found!!\n";
423 my $valid = "A-Za-z_0-9";
445 sub parse_config_depends
456 	    # We only need to process if the depend config is a module
484 sub parse_config_selects
503 	    # Check if something other than a module selects this config
505 		dprint "$conf (non module) selects config, we are good\n";
541 sub loop_depend {
550 	    # If this config is not a module, we do not need to process it
572 sub loop_select {
596 # Finally, read the .config file and turn off any module enabled that
603 	    # enable IKCONFIG at least as a module
623         } elsif ($orig_cert ne $default_cert && ! -f $orig_cert) {
624             print STDERR "Module signature verification enabled but ",
625                 "module signing key \"$orig_cert\" not found. Resetting ",
637         if (! -f $orig_keys) {
667 foreach my $module (keys(%modules)) {
668     if (defined($objects{$module})) {
669 	my @arr = @{$objects{$module}};
675 	print STDERR "module $module did not have configs";