From 75808db17caf8b960b351e3408e74142f4c85aac Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 14 Apr 2024 15:42:30 +0200 Subject: Adding upstream version 2.117.0. Signed-off-by: Daniel Baumann --- lib/Lintian/Check/Binaries/Profiling.pm | 73 +++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 lib/Lintian/Check/Binaries/Profiling.pm (limited to 'lib/Lintian/Check/Binaries/Profiling.pm') diff --git a/lib/Lintian/Check/Binaries/Profiling.pm b/lib/Lintian/Check/Binaries/Profiling.pm new file mode 100644 index 0000000..4b52937 --- /dev/null +++ b/lib/Lintian/Check/Binaries/Profiling.pm @@ -0,0 +1,73 @@ +# binaries/profiling -- lintian check script -*- perl -*- + +# Copyright (C) 1998 Christian Schwarz and Richard Braakman +# Copyright (C) 2012 Kees Cook +# Copyright (C) 2017-2020 Chris Lamb +# 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::Profiling; + +use v5.20; +use warnings; +use utf8; + +use Moo; +use namespace::clean; + +with 'Lintian::Check'; + +sub visit_installed_files { + my ($self, $item) = @_; + + my $architecture = $self->processable->fields->value('Architecture'); + + my $is_profiled = 0; + + for my $symbol (@{$item->elf->{SYMBOLS} // [] }) { + + # According to the binutils documentation[1], the profiling symbol + # can be named "mcount", "_mcount" or even "__mcount". + # [1] http://sourceware.org/binutils/docs/gprof/Implementation.html + $is_profiled = 1 + if $symbol->version =~ /^GLIBC_.*/ + && $symbol->name =~ m{\A _?+ _?+ (gnu_)?+mcount(_nc)?+ \Z}xsm + && ($symbol->section eq 'UND' || $symbol->section eq '.text'); + + # This code was used to detect profiled code in Wheezy and earlier + $is_profiled = 1 + if $symbol->section eq '.text' + && $symbol->version eq 'Base' + && $symbol->name eq '__gmon_start__' + && $architecture ne 'hppa'; + } + + $self->pointed_hint('binary-compiled-with-profiling-enabled', + $item->pointer) + if $is_profiled; + + return; +} + +1; + +# Local Variables: +# indent-tabs-mode: nil +# cperl-indent-level: 4 +# End: +# vim: syntax=perl sw=4 sts=4 sr et -- cgit v1.2.3