linux-kernel - [PATCH] um: Build always with -mcmodel=large on 64bit

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Date:	Fri, 29 Nov 2013 17:16:57 +0100
From:	Richard Weinberger <richard@....at>
To:	richard@....at
Cc:	user-mode-linux-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, bharrosh@...asas.com
Subject: [PATCH] um: Build always with -mcmodel=large on 64bit

On UML SUBARCH can be x86, x86_64 and i386 and if it is x86
we use uname -m to select a defconfig.
Therefore we can no longer use -mcmodel=large only if SUBARCH
is x86_64.

Reported-by: Boaz Harrosh <bharrosh@...asas.com>
Signed-off-by: Richard Weinberger <richard@....at>
---
 arch/um/Makefile | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/um/Makefile b/arch/um/Makefile
index 48d92bb..36e658a 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -33,12 +33,11 @@ MODE_INCLUDE	+= -I$(srctree)/$(ARCH_DIR)/include/shared/skas
 
 HEADER_ARCH 	:= $(SUBARCH)
 
-# Additional ARCH settings for x86
-ifeq ($(SUBARCH),i386)
-        HEADER_ARCH := x86
+ifneq ($(filter $(SUBARCH),x86 x86_64 i386),)
+	HEADER_ARCH := x86
 endif
-ifeq ($(SUBARCH),x86_64)
-        HEADER_ARCH := x86
+
+ifdef CONFIG_64BIT
 	KBUILD_CFLAGS += -mcmodel=large
 endif
 
-- 
1.8.1.4

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