On Tue, Dec 4, 2018 at 5:42 PM Nathan Chancellor
<natechancel...@gmail.com> wrote:
>
> This option is not supported by lld:
>
> ld.lld: error: unknown argument: -p
>
> This has been a no-op in binutils since 2004 (see commit dea514f51da1 in
> that tree). Given that the lowest officially supported of binutils for
> the kernel is 2.20, which was released in 2009, nobody needs this flag
> around so just remove it. Commit 1a381d4a0a9a ("arm64: remove no-op -p
> linker flag") did the same for arm64.
While investigating the context of 1a381d4a0a9a for review, I found
that bfd had removed -p's implementation a long time ago, but kept the
flag as a no-op for compatibility. I asked that the patch be extended
to arm as well, but don't think a v2 was ever cut.
Thanks for sending this Nathan.
Reviewed-by: Nick Desaulniers <ndesaulni...@google.com>
>
> Signed-off-by: Nathan Chancellor <natechancel...@gmail.com>
> ---
> arch/arm/Makefile | 2 +-
> arch/arm/boot/compressed/Makefile | 2 --
> 2 files changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> index 05a91d8b89f3..e2a0baf36766 100644
> --- a/arch/arm/Makefile
> +++ b/arch/arm/Makefile
> @@ -10,7 +10,7 @@
> #
> # Copyright (C) 1995-2001 by Russell King
>
> -LDFLAGS_vmlinux :=-p --no-undefined -X --pic-veneer
> +LDFLAGS_vmlinux := --no-undefined -X --pic-veneer
> ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
> LDFLAGS_vmlinux += --be8
> KBUILD_LDFLAGS_MODULE += --be8
> diff --git a/arch/arm/boot/compressed/Makefile
> b/arch/arm/boot/compressed/Makefile
> index 1f5a5ffe7fcf..dcd07bd24b85 100644
> --- a/arch/arm/boot/compressed/Makefile
> +++ b/arch/arm/boot/compressed/Makefile
> @@ -131,8 +131,6 @@ endif
> ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
> LDFLAGS_vmlinux += --be8
> endif
> -# ?
> -LDFLAGS_vmlinux += -p
> # Report unresolved symbol references
> LDFLAGS_vmlinux += --no-undefined
> # Delete all temporary local symbols
> --
> 2.20.0.rc1
>
--
Thanks,
~Nick Desaulniers
