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Diffstat (limited to '')
-rw-r--r-- | lib/Lintian/Check/Binaries/DebugSymbols/Detached.pm | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/lib/Lintian/Check/Binaries/DebugSymbols/Detached.pm b/lib/Lintian/Check/Binaries/DebugSymbols/Detached.pm new file mode 100644 index 0000000..b4f9a4f --- /dev/null +++ b/lib/Lintian/Check/Binaries/DebugSymbols/Detached.pm @@ -0,0 +1,86 @@ +# binaries/debug-symbols/detached -- lintian check script -*- perl -*- + +# Copyright (C) 1998 Christian Schwarz and Richard Braakman +# Copyright (C) 2012 Kees Cook +# Copyright (C) 2017-2020 Chris Lamb <lamby@debian.org> +# Copyright (C) 2021 Felix Lechner +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, you can find it on the World Wide +# Web at https://www.gnu.org/copyleft/gpl.html, or write to the Free +# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +# MA 02110-1301, USA. + +package Lintian::Check::Binaries::DebugSymbols::Detached; + +use v5.20; +use warnings; +use utf8; + +use List::Compare; + +use Moo; +use namespace::clean; + +with 'Lintian::Check'; + +sub visit_installed_files { + my ($self, $item) = @_; + + return + unless $item->is_file; + + return + unless $item->file_type =~ /^ [^,]* \b ELF \b /x; + + return + unless $item->file_type =~ m{ executable | shared [ ] object }x; + + # Detached debugging symbols directly in /usr/lib/debug. + $self->pointed_hint('debug-symbols-directly-in-usr-lib-debug', + $item->pointer) + if $item->dirname eq 'usr/lib/debug/'; + + return + unless $item->name + =~ m{^ usr/lib/debug/ (?:lib\d*|s?bin|usr|opt|dev|emul|\.build-id) / }x; + + $self->pointed_hint('debug-symbols-not-detached', $item->pointer) + if exists $item->elf->{NEEDED}; + + # Something other than detached debugging symbols in + # /usr/lib/debug paths. + my @KNOWN_DEBUG_SECTION_NAMES + = qw{.debug_line .zdebug_line .debug_str .zdebug_str}; + + my @elf_sections = values %{$item->elf->{'SECTION-HEADERS'}}; + my @have_section_names = map { $_->name } @elf_sections; + + my $lc_name + = List::Compare->new(\@have_section_names, \@KNOWN_DEBUG_SECTION_NAMES); + + my @have_debug_sections = $lc_name->get_intersection; + + $self->pointed_hint('debug-file-with-no-debug-symbols', $item->pointer) + unless @have_debug_sections; + + return; +} + +1; + +# Local Variables: +# indent-tabs-mode: nil +# cperl-indent-level: 4 +# End: +# vim: syntax=perl sw=4 sts=4 sr et |