linux-kernel - [PATCH 05/11] ARM: vfp: use -mfloat-abi=soft to build vfp

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Date:	Sat,  1 Oct 2011 21:21:54 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>
Subject: [PATCH 05/11] ARM: vfp: use -mfloat-abi=soft to build vfp

Distros are starting to ship with toolchains defaulting to
hardfloat. Using such a compiler to build the kernel fails
in the VFP directory with

arch/arm/vfp/entry.S:1:0: sorry, unimplemented: -mfloat-abi=hard and VFP

Adding -mfloat-abi=soft to the gcc command line fixes this.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/arm/vfp/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/vfp/Makefile b/arch/arm/vfp/Makefile
index 6de73aa..a81404c 100644
--- a/arch/arm/vfp/Makefile
+++ b/arch/arm/vfp/Makefile
@@ -7,7 +7,7 @@
 # ccflags-y := -DDEBUG
 # asflags-y := -DDEBUG
 
-KBUILD_AFLAGS	:=$(KBUILD_AFLAGS:-msoft-float=-Wa,-mfpu=softvfp+vfp)
+KBUILD_AFLAGS	:=$(KBUILD_AFLAGS:-msoft-float=-Wa,-mfpu=softvfp+vfp -mfloat-abi=soft)
 LDFLAGS		+=--no-warn-mismatch
 
 obj-y			+= vfp.o
-- 
1.7.5.4

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