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Bug#1042482: marked as done (multilib lsan packages: dysfunctional?)

Your message dated Thu, 10 Aug 2023 04:34:29 +0000
with message-id <E1qTxNV-00GVWt-PX@fasolo.debian.org>
and subject line Bug#1042482: fixed in gcc-13 13.2.0-2
has caused the Debian Bug report #1042482,
regarding multilib lsan packages: dysfunctional?
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
1042482: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1042482
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: lib32lsan0,lib64lsan0,libx32lsan0
Version: 13.1.0-9
Severity: important

Hi Matthias,

I am a bit confused about lib*lsan0. These are support libraries for the
leak sanitizer, but the multilib ones are empty (and the package
description even says so). However, these packages don't seem to work.

$ printf "int main(){}" | gcc -fsanitize=leak -xc -
$ printf "int main(){}" | gcc -fsanitize=leak -xc - -m32
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/13/liblsan.so when searching for -llsan
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/13/liblsan.a when searching for -llsan
/usr/bin/ld: cannot find -llsan: No such file or directory
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/13/liblsan.so when searching for -llsan
collect2: error: ld returned 1 exit status
$

This is in unstable with gcc-multilib, libgcc-13-dev and lib32lsan0
installed. Another hint that something is wrong is a comparison with the
address sanitizer. lib32asan8 is non-empty and -fsanitize=address tends
to work with a multilib.

I conclude that this is not working as intended. At this point, the best
course of action from my point of view is removing the multilib lsan
packages as they evidently do not work at all. Do you agree?

Why did I look into this? The multilib lsan packages happen to ship
empty directories /usr/lib{32,64,x32}. These directories are technically
susceptible to loss due to the /usr-merge. Quite probably, these
directories can be removed from the binary packages without loss of
functionality (which?), but that effort is wasted if we end up removing
these packages altogether.

Helmut

--- End Message ---
--- Begin Message --- 
Source: gcc-13
Source-Version: 13.2.0-2
Done: Matthias Klose <doko@debian.org>

We believe that the bug you reported is fixed in the latest version of
gcc-13, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1042482@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Matthias Klose <doko@debian.org> (supplier of updated gcc-13 package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Thu, 10 Aug 2023 05:49:00 +0200
Source: gcc-13
Architecture: source
Version: 13.2.0-2
Distribution: unstable
Urgency: medium
Maintainer: Debian GCC Maintainers <debian-gcc@lists.debian.org>
Changed-By: Matthias Klose <doko@debian.org>
Closes: 1042482
Changes:
 gcc-13 (13.2.0-2) unstable; urgency=medium
 .
   * Update to git 20230810 from the gcc-13 branch.
     - Fix PR target/110220 (AVR), PR target/110741 (PPC),
       PR target/109713 (RISCV), PR target/89835 (RISCV),
       PR tree-optimization/110280, PR modula2/110125, PR c++/110197,
       PR c++/110566, PR c++/108179, PR fortran/109684, PR fortran/110825,
       PR fortran/108961, PR modula2/110779, PR modula2/110161,
       PR modula2/110865, PR modula2/110284, PR modula2/110174,
       PR modula2/110631, PR modula2/110125, PR libstdc++/110860,
       PR libstdc++/110917, PR libstdc++/110862.
   * Stop building 32bit liblsan packages, where gcc-13 is not part of
     the distro. Closes: #1042482.
   * Update sanitizer symbols files.
   * Address some lintian warnings:
     - Be quiet about libstdc++-doc manpages.
     - Don't complain about unstripped sanitizer libraries.
   * Correct debhelper to mess up permissions in /usr/libexec.
   * Strip again the executables.
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--- End Message ---
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