On Tue, Jul 3, 2018 at 4:23 AM Jan Kurik <jku...@redhat.com> wrote: > Note from Change Wrangler: This Change Proposal requires mass rebuild. > However, two weeks ago (June 19th), we have already passed the > deadline for Change proposals requiring mass rebuild. I will leave the > decision whether this Change proposal is accepted or not to RelEng and > FESCo teams. > > = Proposed System Wide Change: Remove Excessive Linking = > https://fedoraproject.org/wiki/Changes/RemoveExcessiveLinking > > > Owner(s): > * Igor Gnatenko <ignatenkobrain at fedoraproject dot org> > * Neal Gompa <ngompa13 at gmail dot com> > > > Pass "--as-needed" flag the linker through default system-wide LDFLAGS. > > > == Detailed description == > The flag ("--as-needed") tells the linker to link in the produced > binary only the libraries containing symbols actually used by the > binary itself. This binary can be either a final executale or another > library. > The use of the "--as-needed" flag allows the linker to avoid linking > extra libraries in a binary. This not only improves startup times (as > the loader does not have to load all the libraries for every step) but > might avoid the full initialization of big frameworks. > > > == Scope == > * Proposal owners: > Add "-Wl,--as-needed" into RPM_LD_FLAGS (in redhat-rpm-config). > > * Other developers: > Nothing should break, but immediate work-around would be to disable > this flag (will be provided in redhat-rpm-config) and fix real issue > later. > > * Release engineering: > #7604 [https://pagure.io/releng/issue/7604] (mass rebuild is desired > after this change). > > ** List of deliverables: > N/A (not a System Wide Change) > > * Policies and guidelines: > Add information how to turn it off (TODO link to FPC ticket). > > * Trademark approval: > N/A (not needed for this Change) > -- > Jan Kuřík > JBoss EAP Program Manager > Red Hat Czech s.r.o., Purkynova 99/71 > <https://maps.google.com/?q=Purkynova+99/71&entry=gmail&source=g>, 612 45 > Brno, Czech Republic >
Changes that require or "desire" a mass-rebuild should have been submitted by June 19th. I can't find the reference offhand, but I feel like I remember that FESCo has ruled in the past that any changes to the default buildroot or compiler flags must be implemented as part of a mass-rebuild, to catch the fallout all at once. So with my FESCo hat on, I'm -1 to this change for F29, but I'm a strong +1 to implementing it for F30 in Rawhide immediately after we branch.
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