Description of problem: Since clang 3.8->3.9 upgrade build-id is no longer produced by default. Version-Release number of selected component (if applicable): FAIL clang-3.9.1-1.fc25.x86_64 PASS clang-3.8.1-1.fc25.x86_64 How reproducible: Always Steps to Reproduce: echo 'int main(){}'|gcc -x c -;readelf -n a.out|grep NT_GNU_BUILD_ID echo 'int main(){}'|clang -x c -;readelf -n a.out|grep NT_GNU_BUILD_ID echo 'int main(){}'|clang -Wl,--build-id -x c -;readelf -n a.out|grep NT_GNU_BUILD_ID Actual results: GNU 0x00000014 NT_GNU_BUILD_ID (unique build ID bitstring) <nothing> GNU 0x00000014 NT_GNU_BUILD_ID (unique build ID bitstring) Expected results: GNU 0x00000014 NT_GNU_BUILD_ID (unique build ID bitstring) GNU 0x00000014 NT_GNU_BUILD_ID (unique build ID bitstring) GNU 0x00000014 NT_GNU_BUILD_ID (unique build ID bitstring) Additional info: I do not have available F-25 with older clang and it is uneasy to downgrade due to all the dependencies.
I'm not really familiar with build-id, what is the advantage of having it enabled? Upstream disabled it by default for performance reasons.
build-id is definitely required for binaries in rpms at least for debuginfo installation. Other features in ABRT are also dependent on it nowadays. But that would be easily achievable in /usr/lib/rpm/redhat/macros . Upstream GCC (also) does not default to -Wl,--build-id. Fedora GCC does default to -Wl,--build-id. I do not know why. Therefore I think Fedora clang should default to -Wl,--build-id to be as much compatible as gcc as possible. The other possibility is to remove default -Wl,--build-id from gcc. I do not mind either. Some applications now require their build-id at runtime but I find OK those applications should explicitly request -Wl,--build-id in their Makefiles.
clang-3.9.1-2.fc25 has been submitted as an update to Fedora 25. https://bodhi.fedoraproject.org/updates/FEDORA-2017-b12f9264a6
clang-3.9.1-2.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-9ec8654bf9
clang-3.9.1-2.fc26 has been pushed to the Fedora 26 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-9ec8654bf9
clang-3.9.1-2.fc25 has been pushed to the Fedora 25 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-b12f9264a6
clang-3.9.1-2.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.
clang-3.9.1-2.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.