2018-07-02 12:37:01

by Paul Kocialkowski

Subject: [PATCH] arm64: Use aarch64elf and aarch64elfb emulation mode variants

The aarch64linux and aarch64linuxb emulation modes are not supported by
bare-metal toolchains and Linux using them forbids building the kernel
with these toolchains.

Since there is apparently no reason to target these emulation modes, the
more generic elf modes are used instead, allowing to build on bare-metal
toolchains as well as the already-supported ones.

Fixes: 3d6a7b99e3fa ("arm64: ensure the kernel is compiled for LP64")

Cc: [email protected]
Signed-off-by: Paul Kocialkowski <[email protected]>
---
arch/arm64/Makefile | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 87f7d2f9f17c..3e959ac43b40 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -67,14 +67,14 @@ KBUILD_CPPFLAGS += -mbig-endian
CHECKFLAGS += -D__AARCH64EB__
AS += -EB
LD += -EB
-LDFLAGS += -maarch64linuxb
+LDFLAGS += -maarch64elfb
UTS_MACHINE := aarch64_be
else
KBUILD_CPPFLAGS += -mlittle-endian
CHECKFLAGS += -D__AARCH64EL__
AS += -EL
LD += -EL
-LDFLAGS += -maarch64linux
+LDFLAGS += -maarch64elf
UTS_MACHINE := aarch64
endif

--
2.17.1

2018-07-02 10:35:35

by Will Deacon

Subject: Re: [PATCH] arm64: Use aarch64elf and aarch64elfb emulation mode variants

On Mon, Jul 02, 2018 at 11:16:59AM +0200, Paul Kocialkowski wrote:
> The aarch64linux and aarch64linuxb emulation modes are not supported by
> bare-metal toolchains and Linux using them forbids building the kernel
> with these toolchains.
>
> Since there is apparently no reason to target these emulation modes, the
> more generic elf modes are used instead, allowing to build on bare-metal
> toolchains as well as the already-supported ones.
>
> Fixes: 3d6a7b99e3fa ("arm64: ensure the kernel is compiled for LP64")
>
> Cc: [email protected]
> Signed-off-by: Paul Kocialkowski <[email protected]>
> ---
> arch/arm64/Makefile | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
> index 87f7d2f9f17c..3e959ac43b40 100644
> --- a/arch/arm64/Makefile
> +++ b/arch/arm64/Makefile
> @@ -67,14 +67,14 @@ KBUILD_CPPFLAGS += -mbig-endian
> CHECKFLAGS += -D__AARCH64EB__
> AS += -EB
> LD += -EB
> -LDFLAGS += -maarch64linuxb
> +LDFLAGS += -maarch64elfb
> UTS_MACHINE := aarch64_be
> else
> KBUILD_CPPFLAGS += -mlittle-endian
> CHECKFLAGS += -D__AARCH64EL__
> AS += -EL
> LD += -EL
> -LDFLAGS += -maarch64linux
> +LDFLAGS += -maarch64elf
> UTS_MACHINE := aarch64
> endif

Acked-by: Will Deacon <[email protected]>

Will