Project:Toolchain/23.0 profile transition
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A project management page for the 23.0 profile transition.
General information
- The tracker for the 23.0 profiles is bug #876891
- Ongoing work can be found on a Github pull request 27903 (please check regularly, commits will be cherry-picked for merging and more will be added)
Planned specific issues, all arches
bug #675050: Enable GCC's -fstack-clash-protection by default
- control useflag added to gcc-13
- useflag forced on hardened and 23.0
- done
- may want to port also to a later gcc-12 release?
bug #818376: adopt SHT_RELR/DT_RELR relative relocation format
- requires on upgrade dependency on glibc-2.36
- done (via LDFLAGS, only on amd64, x86, ppc, ppc64; otherwise not implemented yet)
bug #831045: remove USE=cli default and inline into ebuilds
- trivial
- done
bug #849875: remove USE=dri default, clean up make.defaults
- trivial
- done
bug #876881: make merged usr the default configuration
- the changes in the profiles are trivial (renaming)
- requires now testing
- what do we do with openrc profiles? we offer both there
- done
- make sure that people do not switch during the profile upgrade
bug #876923: enable "-z relro -z now" by default in the linker
- -z relro is already default since 2017
- -z now is enabled by the hardened code in gcc and can be moved out into vanilla there
- control useflag added to gcc-13
- useflag forced on hardened and 23.0
- done
- may want to port also to a later gcc-12 release?
bug #878119: rename clang to llvm in profile names
- implementation trivial
- done
bug #878157: add systemd/hardened profiles, make systemd/selinux inherit them
- done
bug #917396: get rid of -gentoo- in musl CHOST setting
- CHOST change but nothing else, fairly easy
- done
Planned specific issues, single arches
bug #515694: Update MIPS profiles to use ABI-specific CHOST
- MIPS-specific
- In default/linux/23.0/mips..., set the correct CHOST. That's all.
- done
- requires on upgrade the usual CHOST-changing acrobatics
bug #882815: transition ppc64le 23.0 profiles to 128-bit IEEE long double ABI
- arch-specific
- Fedora finally switched recently
- GH pull request for gcc plumbing
- migration procedure is same as CHOST change
- done
Draft migration notes
The upgrade instructions are still work in progress. They can be found on a separate page.
Deferred / postponed issues
bug #876883: time64 migration for 32bit arches
- upstream not many understand the problem and coordination between distros has failed
- first we need to figure out what we want
- probably best to add the time64 variants as new profiles
- postponed
bug #882825: align to 32-bit rather than 16-bit on m68k with -malign-int
- this breaks about just everything and thus makes a complex migration necessary
- adjustments to glibc may be required
- new CHOST?
- postponed
bug #917677: move ppc64 to ELFv2 ABI?
- unclear what the benefit is
- postponed