1 files changed, 72 insertions, 0 deletions
diff --git a/lib/Lintian/Check/Libraries/Shared/Exit.pm b/lib/Lintian/Check/Libraries/Shared/Exit.pm
new file mode 100644
index 0000000..5788808
--- /dev/null
+++ b/lib/Lintian/Check/Libraries/Shared/Exit.pm
@@ -0,0 +1,72 @@
+# libraries/shared/exit -- lintian check script -*- perl -*-
+
+# Copyright (C) 1998 Christian Schwarz
+# Copyright (C) 2018-2019 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::Libraries::Shared::Exit;
+
+use v5.20;
+use warnings;
+use utf8;
+
+use List::SomeUtils qw(any none);
+
+use Moo;
+use namespace::clean;
+
+with 'Lintian::Check';
+
+# not presently used
+#my $UNKNOWN_SHARED_LIBRARY_EXCEPTIONS
+#  = $self->data->load('shared-libs/unknown-shared-library-exceptions');
+
+sub visit_installed_files {
+    my ($self, $item) = @_;
+
+    return
+      unless $item->is_file;
+
+    # shared library
+    return
+      unless @{$item->elf->{SONAME} // [] };
+
+    my @symbols = grep { $_->section eq '.text' || $_->section eq 'UND' }
+      @{$item->elf->{SYMBOLS} // []};
+
+    my @symbol_names = map { $_->name } @symbols;
+
+    # If it has an INTERP section it might be an application with
+    # a SONAME (hi openjdk-6, see #614305).  Also see the comment
+    # for "shared-library-is-executable" below.
+    $self->pointed_hint('exit-in-shared-library', $item->pointer)
+      if (any { m/^_?exit$/ } @symbol_names)
+      && (none { $_ eq 'fork' } @symbol_names)
+      && !length $item->elf->{INTERP};
+
+    return;
+}
+
+1;
+
+# Local Variables:
+# indent-tabs-mode: nil
+# cperl-indent-level: 4
+# End:
+# vim: syntax=perl sw=4 sts=4 sr et