my $option_version = 0;
my $option_pie = 0;
my $option_bindnow = 0;
+my @option_ignore_flag = ();
+my @option_ignore_line = ();
my $option_all = 0;
my $option_arch = undef;
my $option_buildd = 0;
'pie' => \$option_pie,
'bindnow' => \$option_bindnow,
'all' => \$option_all,
+ # Ignore.
+ 'ignore-flag=s' => \@option_ignore_flag,
+ 'ignore-line=s' => \@option_ignore_line,
# Misc.
'color' => \$option_color,
'arch=s' => \$option_arch,
$option_bindnow = 1;
}
+# Strip flags which should be ignored.
+if (scalar @option_ignore_flag > 0) {
+ my %ignores = map { $_ => 1 } @option_ignore_flag;
+ foreach my $flags (@flag_refs) {
+ @{$flags} = grep {
+ # Flag found as string.
+ not exists $ignores{$_}
+ # Flag found as string representation of regexp.
+ and (not defined $flag_renames{$_}
+ or not exists $ignores{$flag_renames{$_}})
+ } @{$flags};
+ }
+}
+
# Precompile all flag regexps. any_flags_used(), all_flags_used() get a lot
# faster with this.
foreach my $flags (@flag_refs_all) {
@{$flags} = compile_flag_regexp(\%flag_renames, @{$flags});
}
+# Precompile ignore line regexps, also anchor at beginning and end of line.
+foreach my $ignore (@option_ignore_line) {
+ $ignore = qr/^$ignore$/;
+}
+
# Final exit code.
my $exit = 0;
-FILE: foreach my $file (@ARGV) {
+FILE:
+foreach my $file (@ARGV) {
print "checking '$file'...\n" if scalar @ARGV > 1;
open my $fh, '<', $file or die "$!: $file";
@ldflags = (@ldflags, @def_ldflags_bindnow);
}
+LINE:
for (my $i = 0; $i < scalar @input; $i++) {
my $line = $input[$i];
+ # Ignore line if requested.
+ foreach my $ignore (@option_ignore_line) {
+ next LINE if $line =~ /$ignore/;
+ }
+
my $skip = 0;
if (is_non_verbose_build($line, $input[$i + 1], \$skip)) {
if (not $option_buildd) {
Use colored (ANSI) output for warning messages.
+=item B<--ignore-flag> I<flag>
+
+Don't print an error when the specific flag is missing in a compiler line.
+I<flag> is a string.
+
+Used to prevent false positives. This option can be specified multiple times.
+
+=item B<--ignore-line> I<regex>
+
+Ignore lines matching the given Perl regex. I<regex> is automatically anchored
+at the beginning and end of the line to prevent false negatives.
+
+B<NOTE>: Not the input lines are checked, but the lines which are displayed in
+warnings (which have line continuation resolved).
+
+Used to prevent false positives. This option can be specified multiple times.
+
=item B<--pie>
Force check for all +pie hardening flags. By default it's auto detected.