[From nobody Mon Sep 14 10:37:12 2026 Received: (at submit) by bugs.debian.org; 13 Sep 2026 07:19:03 +0000 X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02 (2024-03-25) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-15.9 required=4.0 tests=BAYES_00, BODY_INCLUDES_PACKAGE,FORGED_SPF_HELO,FOURLA,FROMDEVELOPER,HAS_PACKAGE, KHOP_HELO_FCRDNS,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS, SPF_SOFTFAIL autolearn=ham autolearn_force=no version=4.0.1-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 44; hammy, 150; neutral, 53; spammy, 0. spammytokens: hammytokens:0.000-+--H*Ad:N*Bug, 0.000-+--HTo:N*Debian, 0.000-+--H*F:U*doko, 0.000-+--forky, 0.000-+--HTo:N*System Return-path: <doko@debian.org> Received: from einhorn.in-berlin.de ([192.109.42.8]:38323 helo=einhorn-mail-out.in-berlin.de) by buxtehude.debian.org with esmtps (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <doko@debian.org>) id 1x5eUR-00Dwkb-21 for submit@bugs.debian.org; Sun, 13 Sep 2026 07:19:03 +0000 X-Envelope-From: doko@debian.org X-Envelope-To: <submit@bugs.debian.org> Received: from authenticated.user (localhost [127.0.0.1]) by einhorn.in-berlin.de with ESMTPSA id 68D7J1d8703069 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT) for <submit@bugs.debian.org>; Sun, 13 Sep 2026 09:19:02 +0200 Message-ID: <22d47882-0523-4f5b-a43b-76f2e55a4d7c@debian.org> Date: Sun, 13 Sep 2026 09:19:01 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta Content-Language: en-US To: Debian Bug Tracking System <submit@bugs.debian.org> From: Matthias Klose <doko@debian.org> Subject: packaging of the fuzzer libraries is broken with LLVM 21, 22 and 23 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Delivered-To: submit@bugs.debian.org Package: src:llvm-toolchain-21 Version: 1:21.1.8-10 Severity: serious Tags: sid forky As seen in the vbox-tools upload to migrate from LLVM 19 to 21, the fuzzer libraries are not used anymore (or not found) when built with LLVM 21. You can reproduce that when building with the unversioned clang: [...] LD tests/vb2_keyblock_fuzzer clang -o /packages/tmp/vboot-utils-0~R106-15054.B+dfsg/build/tests/vb2_keyblock_fuzzer -Wl,-z,relro -Wl,-z,now -Wl,--gc-sections -pie -Xlinker --allow-multiple-definition -fsanitize=fuzzer /packages/tmp/vboot-utils-0~R106-15054.B+dfsg/build/tests/vb2_keyblock_fuzzer.o /packages/tmp/vboot-utils-0~R106-15054.B+dfsg/build/vboot_fw.a -lrt -luuid /usr/bin/x86_64-linux-gnu-ld.bfd/usr/bin/x86_64-linux-gnu-ld.bfd: cannot find : cannot find /usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer.a: /usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer.a: No such file or directory No such file or directory /usr/bin/x86_64-linux-gnu-ld.bfd: cannot find /usr/bin/x86_64-linux-gnu-ld.bfd: cannot find /usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer_interceptors.a: /usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer_interceptors.aNo such file or directory: No such file or directory /usr/bin/x86_64-linux-gnu-ld.bfd/usr/bin/x86_64-linux-gnu-ld.bfd: cannot find : cannot find /usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.ubsan_standalone.a/usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.ubsan_standalone.a: : No such file or directoryNo such file or directory /usr/bin/x86_64-linux-gnu-ld.bfd: cannot find /usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer.a: No such file or directory /usr/bin/x86_64-linux-gnu-ld.bfd: cannot find /usr/lib/llvm-21/lib/clang/21/lib/x86_64-pc-linux-gnu/libclang_rt.fuzzer_interceptors.a: No such file or directory clang: error: linker command failed with exit code 1 (use -v to see invocation) clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [Makefile:1156: /packages/tmp/vboot-utils-0~R106-15054.B+dfsg/build/tests/cgpt_fuzzer] Error 1 make[2]: *** Waiting for unfinished jobs.... So apparently building and shipping Debian's own libFuzzer.a is not good enough anymore. Two solutions here: - stop building the libfuzzer-N-dev package - Ship the libclang_rt.fuzzer.a (and maybe other) libraries. This is seen with LLVM 21, 22 and 23. ]