[PATCH] ARM: fix build error with GCC 4.5.0

Rabin Vincent rabin at rab.in
Thu Nov 4 14:56:42 EDT 2010


Fix the following error which occurs when building an ARM kernel with
GCC 4.5.0:

  arm-linux-gcc -Wp,-MD,kernel/.bounds.s.d  -nostdinc
  [command line edited to remove paths]
  -D__KERNEL__ -mlittle-endian
  -Wall -Wundef
  -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
  -Werror-implicit-function-declaration -Wno-format-security
  -fno-delete-null-pointer-checks -Os -marm -fno-dwarf2-cfi-asm
  -mabi=aapcs-linux -mno-thumb-interwork -funwind-tables -D__LINUX_ARM_ARCH__=5
  -march=armv5te -mtune=arm9tdmi -msoft-float -Uarm -fomit-frame-pointer -g
  -DCC_HAVE_ASM_GOTO    -D"KBUILD_STR(s)=#s"
  -D"KBUILD_BASENAME=KBUILD_STR(bounds)"  -D"KBUILD_MODNAME=KBUILD_STR(bounds)"
  -fverbose-asm -S -o kernel/bounds.s kernel/bounds.c
  kernel/bounds.c:1:0: error: FPA is unsupported in the AAPCS

Signed-off-by: Rabin Vincent <rabin at rab.in>
---
Seen with this compiler:

http://kernel.org/pub/tools/crosstool/files/bin/x86_64/4.5.0/x86_64-gcc-4.5.0-nolibc_arm-linux.tar.bz2

 arch/arm/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index b87aed0..c06d9ed 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -91,7 +91,7 @@ tune-$(CONFIG_CPU_FEROCEON)	:=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
 tune-$(CONFIG_CPU_V6)		:=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
 
 ifeq ($(CONFIG_AEABI),y)
-CFLAGS_ABI	:=-mabi=aapcs-linux -mno-thumb-interwork
+CFLAGS_ABI	:=-mabi=aapcs-linux -mno-thumb-interwork -mfpu=vfp
 else
 CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
 endif
-- 
1.7.2.3




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