= Proposed System Wide Change: i686 Is For x86-64 = https://fedoraproject.org/wiki/Changes/i686_Is_For_x86-64 Owner(s): * Florian Weimer <fweimer at redhat dot com> Fedora builds its i686 packages for use on x86-64 systems as multi-lib RPMs. == Detailed description == Currently, the i686 RPM packages are built in such a way that they are compatible with very old i686 systems, such as the Pentium III. The only addition over the i686/Pentium Pro baseline is a requirement to support long NOPs, for Intel CET. However, the majority of installations of i686 packages is for use on x86_64 systems, as multi-lib RPMs. Furthermore, there are reports that the i686 kernel does not run stable on old hardware which is not x86-64-capable ( https://lists.fedoraproject.org/archives/list/x86@xxxxxxxxxxxxxxxxxxxxxxx/thread/ZHV6I4IEO7GRYAZ4TUMO5VH2ZHLCNJZQ/ ). This proposal suggests to accept this reality and build the i686 packages in such a way that they require the ISA level of (early) x86-64 CPUs. == Scope == * Proposal owners: Adjust the redhat-rpm-config, gcc, and glibc packages to switch to the new compiler flags. Except for mstackrealign, there is substantial experience with this configuration downstream. * Other developers: Other developers can enable SSE2 optimization in their packages if they want, where this has been a compile-time option only. * Release engineering: https://pagure.io/releng/issues/7543 #7543 ** List of deliverables: TBD * Policies and guidelines: i686 is no longer a primary architecture. The Packaging Guidelines do not currently require support for non-SSE2 x86 systems, so no change is required there. * Trademark approval: N/A (not needed for this Change) -- Jan Kuřík JBoss EAP Program Manager Red Hat Czech s.r.o., Purkynova 99/71, 612 45 Brno, Czech Republic _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx/message/CC22ZTFDB5L3BFSQG7M3TUZUVYKFUSKP/
