linux-kernel - Re: [PATCH] Revert "arm64: Use aarch64elf and aarch64elfb emulation mode variants"

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Date:   Tue, 10 Jul 2018 10:01:26 +0100
From:   Will Deacon <will.deacon@....com>
To:     Laura Abbott <labbott@...hat.com>
Cc:     Paul Kocialkowski <contact@...lk.fr>,
        Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Revert "arm64: Use aarch64elf and aarch64elfb emulation
 mode variants"

Thanks, Laura.

I'll take this as a fix, and add a comment to the Makefile to justify
why we need the linux target.

Will

On Mon, Jul 09, 2018 at 01:09:56PM -0700, Laura Abbott wrote:
> This reverts commit 38fc4248677552ce35efc09902fdcb06b61d7ef9.
> 
> This breaks compilation with Fedora gcc-8 tool chains:
> 
>   CHK     include/generated/compile.h
>   LD [M]  arch/arm64/crypto/sha512-ce.o
> aarch64-linux-gnu-ld: cannot open linker script file ldscripts/aarch64elf.xr: No such file or directory
> make[1]: *** [scripts/Makefile.build:530: arch/arm64/crypto/sha512-ce.o] Error 1
> make: *** [Makefile:1029: arch/arm64/crypto] Error 2
> 
> Fixes: 38fc42486775 ("arm64: Use aarch64elf and aarch64elfb emulation mode variants")
> Signed-off-by: Laura Abbott <labbott@...hat.com>
> ---
> A bit rushed and I'm still debugging but I wanted to send this out
> before anyone else gets hit since it is -rc4. Seeing this on both native
> and cross compiles.
> ---
>  arch/arm64/Makefile | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
> index 7976d2d242fa..f476d52ad8d6 100644
> --- a/arch/arm64/Makefile
> +++ b/arch/arm64/Makefile
> @@ -60,13 +60,13 @@ ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
>  KBUILD_CPPFLAGS	+= -mbig-endian
>  CHECKFLAGS	+= -D__AARCH64EB__
>  AS		+= -EB
> -LDFLAGS		+= -EB -maarch64elfb
> +LDFLAGS		+= -EB -maarch64linuxb
>  UTS_MACHINE	:= aarch64_be
>  else
>  KBUILD_CPPFLAGS	+= -mlittle-endian
>  CHECKFLAGS	+= -D__AARCH64EL__
>  AS		+= -EL
> -LDFLAGS		+= -EL -maarch64elf
> +LDFLAGS		+= -EL -maarch64linux
>  UTS_MACHINE	:= aarch64
>  endif
>  
> -- 
> 2.17.1
>