On 25 December 2017 at 21:05, Sam Ravnborg <sam@xxxxxxxxxxxx> 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@xxxxxxx> >> Cc: Will Deacon <will.deacon@xxxxxxx> >> Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> >> Cc: Paul Mackerras <paulus@xxxxxxxxx> >> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx> >> Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> >> Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx> >> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> >> Cc: Ingo Molnar <mingo@xxxxxxxxxx> >> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> >> Cc: x86@xxxxxxxxxx >> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> >> --- >> 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.
