linux-kernel - [PATCH] arm64: Target aarch64elf emulation to allow bare-metal toolchains

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Date:   Sat, 30 Dec 2017 16:08:59 +0100
From:   Paul Kocialkowski <contact@...lk.fr>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Andrew Pinski <apinski@...ium.com>,
        Will Deacon <will.deacon@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Paul Kocialkowski <contact@...lk.fr>, stable@...r.kernel.org
Subject: [PATCH] arm64: Target aarch64elf emulation to allow bare-metal toolchains

This sets the LDFLAGS variable to target the aarch64elf emulation
instead of aarch64linux, which is incompatible with bare-metal
toolchains.

This change allows the kernel to build with bare-metal toolchains again.

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 b481b4a7c011..a249233edcd8 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -64,14 +64,14 @@ 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
 
-- 
2.15.1