From: Vincent Sanders <vince@kyllikki.org>
Date: Tue, 13 Mar 2012 14:34:17 +0000 (+0100)
Subject: ARM: 7420/1: Improve build environment isolation
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bcccc50ce8fcc833cfed4bb71ede211a6ef5b84a;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

ARM: 7420/1: Improve build environment isolation

Increasingly distributions are setting default build environments to
have LDFLAGS with hardening options. There seems to be an assumption
with those options that LDFLAGS are passed to the compiler frontend
rather than used directly with ld (which the kernel build process
assumes)

To prevent build failures in such environments this patch changes the
ARM architecture Makefile to override the LDFLAGS from the environment
similar to the behaviour on other common architectures e.g. x86

Signed-off-by: Vincent Sanders <vince@collabora.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 0298b00fe241..f8ebf1e97027 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -10,6 +10,9 @@
 #
 # Copyright (C) 1995-2001 by Russell King
 
+# Ensure linker flags are correct
+LDFLAGS		:=
+
 LDFLAGS_vmlinux	:=-p --no-undefined -X
 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
 LDFLAGS_vmlinux	+= --be8