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# By Paul Bolle October 2014.
#
# Contributed to the public domain by its author.
use 5.016;
use warnings;
use autodie;
use File::Find;
my @Kconfigs;
my $Kconfigre = qr/Kconfig.*/;
my $configre = qr/^\s*(menu)?config\s+(?<config>(\w+))$/;
my $CONFIG_re = qr/\bCONFIG_(?<CONFIG_>(\w+))/;
sub match {
push( @Kconfigs, $File::Find::name ) if ($_ =~ $Kconfigre);
}
sub parse_kconfig {
my ($path) = @_;
my @ret;
open( my $kconfig, "<", $path );
my $slurp = do { local $/ = undef; <$kconfig> };
close( $kconfig );
my @lines = split ( /\n/, $slurp );
foreach my $line (@lines) {
if ($line =~ /$configre/) {
push( @ret, $+{config} );
}
}
@ret;
}
sub parse_shipped {
my ($path) = @_;
my @ret;
open( my $shipped, "<", $path );
my $slurp = do { local $/ = undef; <$shipped> };
close( $shipped );
my @lines = split ( /\n/, $slurp );
my $i = 1;
foreach my $line (@lines) {
if ($line =~ /$CONFIG_re/) {
push( @ret, [$i, $+{CONFIG_}] );
}
$i++;
}
@ret;
}
exit main ( @ARGV );
sub main {
my %configs;
find( \&match, @_ );
foreach my $Kconfig (@Kconfigs) {
my (@tmp) = parse_kconfig( $Kconfig );
foreach my $config ( @tmp ) {
$configs{ $config }++;
}
}
foreach my $shipped (glob("*.config")) {
my (@tmp) = parse_shipped( $shipped );
foreach my $ref ( @tmp ) {
say( STDERR "$shipped:$ref->[0]: No Kconfig symbol matches 'CONFIG_$ref->[1]'" )
unless (grep( /$ref->[1]/, keys( %configs )));
}
}
0;
}
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