Messages in this thread | | | From | Ard Biesheuvel <> | Date | Mon, 25 Dec 2017 21:09:48 +0000 | Subject | Re: [PATCH v5 1/8] arch: enable relative relocations for arm64, power, x86, s390 and x86 |
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On 25 December 2017 at 21:05, Sam Ravnborg <sam@ravnborg.org> wrote: > Hi Ard. > > On Mon, Dec 25, 2017 at 08:54:33PM +0000, Ard Biesheuvel wrote: >> Before updating certain subsystems to use place relative 32-bit >> relocations in special sections, to save space and reduce the >> number of absolute relocations that need to be processed at runtime >> by relocatable kernels, introduce the Kconfig symbol and define it >> for some architectures that should be able to support and benefit >> from it. >> >> Cc: Catalin Marinas <catalin.marinas@arm.com> >> Cc: Will Deacon <will.deacon@arm.com> >> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> >> Cc: Paul Mackerras <paulus@samba.org> >> Cc: Michael Ellerman <mpe@ellerman.id.au> >> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> >> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> >> Cc: Thomas Gleixner <tglx@linutronix.de> >> Cc: Ingo Molnar <mingo@redhat.com> >> Cc: "H. Peter Anvin" <hpa@zytor.com> >> Cc: x86@kernel.org >> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> >> --- >> arch/Kconfig | 10 ++++++++++ >> arch/arm64/Kconfig | 1 + > >> arch/arm64/kernel/vmlinux.lds.S | 2 +- > The change to arch/arm64/kernel/vmlinux.lds.S is > not justified in the changelog. > Did you add it by mistake? >
No. The PREL32 support adds a __ADDRESSABLE() macro that emits code into .discard.text, and on arm64, the EFI object sections get a .init prefix so we need to discard .init.discard.* explicitly as well.
I will add this as a note.
Thanks, Ard.
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