On Wed, Sep 25, 2024, at 15:01, Ard Biesheuvel wrote: > From: Ard Biesheuvel <ardb@xxxxxxxxxx> > > Bump the minimum GCC version to 8.1 to gain unconditional support for > referring to the per-task stack cookie using a symbol rather than > relying on the fixed offset of 40 bytes from %GS, which requires > elaborate hacks to support. > > Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx> > --- > Documentation/admin-guide/README.rst | 2 +- > Documentation/process/changes.rst | 2 +- > 2 files changed, 2 insertions(+), 2 deletions(-) Acked-by: Arnd Bergmann <arnd@xxxxxxxx> As we discussed during plumbers, I think this is reasonable, both the gcc-8.1 version and the timing after the 6.12-LTS kernel. We obviously need to go through all the other version checks to see what else can be cleaned up. I would suggest we also raise the binutils version to 2.30+, which is what RHEL8 shipped alongside gcc-8. I have not found other distros that use older binutils in combination with gcc-8 or higher, Debian 10 uses binutils-2.31. I don't think we want to combine the additional cleanup with your series, but if we can agree on the version, we can do that in parallel. FWIW, here are links to the last few times we discussed this, and there are already has a few other things that would benefit from more modern compilers: https://lore.kernel.org/lkml/dca5b082-90d1-40ab-954f-8b3b6f51138c@xxxxxxxxxxxxxxxx/ https://lore.kernel.org/lkml/CAFULd4biN8FPRtU54Q0QywfBFvvWV-s1M3kWF9YOmozyAX9+ZQ@xxxxxxxxxxxxxx/ https://lore.kernel.org/lkml/CAK8P3a1Vt17Yry_gTQ0dwr7_tEoFhuec+mQzzKzFvZGD5Hrnow@xxxxxxxxxxxxxx/ Arnd
