Re: Packed relative ELF relocations (DT_RELR) enabled by default in rawhide
* Alessandro Astone: > It also appears for aarch64. > It is an issue because software may use `-Wl,--fatal-warnings` so this > warning breaks the build. > As an example, pretty much the entire KDE software collection now fails to > compile on aarch64 and s390x: > https://invent.kde.org/frameworks/extra-cmake-modules/-/blob/04affb76a6af4ccbda50abfe264c62d7b7f60d84/kde-modules/KDECompilerSettings.cmake#L549 The redhat-rpm-config-274-1.fc40 update should have a workaround for that. It skips -z pack-relative-relocs on aarch64 and s390x. Thanks, Florian -- ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
Re: Packed relative ELF relocations (DT_RELR) enabled by default in rawhide
It also appears for aarch64. It is an issue because software may use `-Wl,--fatal-warnings` so this warning breaks the build. As an example, pretty much the entire KDE software collection now fails to compile on aarch64 and s390x: https://invent.kde.org/frameworks/extra-cmake-modules/-/blob/04affb76a6af4ccbda50abfe264c62d7b7f60d84/kde-modules/KDECompilerSettings.cmake#L549 -- ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
Re: Packed relative ELF relocations (DT_RELR) enabled by default in rawhide
* Dan Horák: > On Wed, 03 Jan 2024 10:47:12 +0100 > Florian Weimer wrote: > >> This changed was originally planned and approved for Fedora 39. It >> reduces startup time somewhat for large objects with lots of function >> and object pointers in global data. >> >> It should be a transparent change, internal to the toolchain. Within >> glibc itself, we started using this linker feature in glibc 2.36 (Fedora >> 37), and no issues surfaced. A few dozen test rebuilds of core packages >> did not show any issues, either. > > is > /usr/bin/ld: warning: -z pack-relative-relocs ignored > related? It seems to appear in s390x builds. Yeah, it is, it did not occur to me to check that it was actually enabled in the link editor on all architectures because the format is portable. I'll raise the gap with IBM. Thanks, Florian -- ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
Re: Packed relative ELF relocations (DT_RELR) enabled by default in rawhide
On Wed, 03 Jan 2024 10:47:12 +0100 Florian Weimer wrote: > This changed was originally planned and approved for Fedora 39. It > reduces startup time somewhat for large objects with lots of function > and object pointers in global data. > > It should be a transparent change, internal to the toolchain. Within > glibc itself, we started using this linker feature in glibc 2.36 (Fedora > 37), and no issues surfaced. A few dozen test rebuilds of core packages > did not show any issues, either. is /usr/bin/ld: warning: -z pack-relative-relocs ignored related? It seems to appear in s390x builds. Dan -- ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
Packed relative ELF relocations (DT_RELR) enabled by default in rawhide
This changed was originally planned and approved for Fedora 39. It reduces startup time somewhat for large objects with lots of function and object pointers in global data. It should be a transparent change, internal to the toolchain. Within glibc itself, we started using this linker feature in glibc 2.36 (Fedora 37), and no issues surfaced. A few dozen test rebuilds of core packages did not show any issues, either. Thanks, Florian -- ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
