Re: [PATCH v2 1/2] efi/libstub/arm64: link stub lib.a conditionally

From: Will Deacon
Date: Wed Jun 10 2020 - 03:58:44 EST


On Thu, Jun 04, 2020 at 11:20:30AM +0900, Masahiro Yamada wrote:
> Since commit 799c43415442 ("kbuild: thin archives make default for
> all archs"), core-y is passed to the linker with --whole-archive.
> Hence, the whole of stub library is linked to vmlinux.
>
> Use libs-y so that lib.a is passed after --no-whole-archive for
> conditional linking.
>
> The unused drivers/firmware/efi/libstub/relocate.o will be dropped
> for ARCH=arm64.
>
> Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
> ---
>
> This patch touches under arch/arm64/, but
> this is more related to efi.
> I am sending this to Ard.

Ok, I'll ignore this then. Ard -- please yell if you want me to do anything
else with it.

Will


> diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
> index 650e1185c190..48a6afa774fc 100644
> --- a/arch/arm64/Makefile
> +++ b/arch/arm64/Makefile
> @@ -145,7 +145,7 @@ export TEXT_OFFSET
>
> core-y += arch/arm64/
> libs-y := arch/arm64/lib/ $(libs-y)
> -core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
> +libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
>
> # Default target when executing plain make
> boot := arch/arm64/boot
> --
> 2.25.1
>