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

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Message-Id: <20180702091659.17571-1-contact@paulk.fr>
Date:   Mon,  2 Jul 2018 11:16:59 +0200
From:   Paul Kocialkowski <contact@...lk.fr>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Paul Kocialkowski <contact@...lk.fr>, stable@...r.kernel.org
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: stable@...r.kernel.org
Signed-off-by: Paul Kocialkowski <contact@...lk.fr>
---
 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