This is an automated email from the git hooks/post-receive script. guillem pushed a commit to branch main in repository dpkg.
View the commit online: https://git.dpkg.org/cgit/dpkg/dpkg.git/commit/?id=47516cd128aa2ff5d2dcc222dd7c7f8582b69d3f commit 47516cd128aa2ff5d2dcc222dd7c7f8582b69d3f Author: Guillem Jover <[email protected]> AuthorDate: Mon Dec 8 01:23:23 2025 +0100 Dpkg::Shlibs::Objdump::Object: Add support for "Version References" symbols New binutils can emit dependencies on specific versions via the DT_VERNEED tags in the .gnu.version_r section. But these dependencies are not exposed in the Dynamic Symbol Table. Inject those dependencies as if they were normal undefined symbols into the object metadata. Closes: #1122107 Stable-Candidate: 1.22.x --- scripts/Dpkg/Shlibs/Objdump/Object.pm | 36 +++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/scripts/Dpkg/Shlibs/Objdump/Object.pm b/scripts/Dpkg/Shlibs/Objdump/Object.pm index cc635a24e..63e944ffd 100644 --- a/scripts/Dpkg/Shlibs/Objdump/Object.pm +++ b/scripts/Dpkg/Shlibs/Objdump/Object.pm @@ -109,6 +109,7 @@ sub parse_objdump_output { my ($self, $fh) = @_; my $section = 'none'; + my $verneed_lib = undef; while (<$fh>) { s/\s*$//; next if length == 0; @@ -164,6 +165,12 @@ sub parse_objdump_output { $self->{RPATH} = [ split /:/, $rpath ]; } } + } elsif ($section eq 'verref') { + if (/^\s*required from ([^:]*):/) { + $verneed_lib = $1; + } elsif (/^\s*0x[[:xdigit:]]*\s*0x[[:xdigit:]]*\s*\d*\s*(.*)/) { + $self->add_verneed_symbol($verneed_lib, $1); + } } elsif ($section eq 'program') { if (/^\s*INTERP\s+/) { $self->{INTERP} = 1; @@ -307,6 +314,35 @@ sub apply_relocations { } } +# Inject the version reference dependency as an undefined symbol into the +# dynamic symbol information. +# +# We do not currently use the $solib name, which would denote a stronger +# tighter dependency on a specific shared object, but for now this should +# suffice. +sub add_verneed_symbol($self, $solib, $name) +{ + my $symbol = { + name => $name, + version => $name, + section => '*UND*', + dynamic => 1, + debug => 0, + type => 'O', + weak => 0, + local => 0, + global => 1, + visibility => '', + hidden => '', + defined => 0, + }; + + # Register artificial symbol. + $self->add_dynamic_symbol($symbol); + + return; +} + sub add_dynamic_symbol { my ($self, $symbol) = @_; $symbol->{objid} = $symbol->{soname} = $self->get_id(); -- Dpkg.Org's dpkg
