From: Jan Beulich Date: Mon, 25 Jun 2012 11:41:32 +0000 (+0200) Subject: arm: fix build with gcc 4.7.x X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~8306 X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https://%22%22/%22http:/www.example.com/cgi/%22https:/%22%22?a=commitdiff_plain;h=45ea841437afdf244b5b8154ceb0cf03e09cd6e1;p=xen.git arm: fix build with gcc 4.7.x As was already pointed out months ago (see http://lists.xen.org/archives/html/xen-devel/2012-02/msg00826.html), gcc 4.7.x (imo validly) refuses to take both -mcpu=cortex-a15 and -march=armv7-a due to conflicting feature sets causing amibiguity in instruction selection. Since the former implies the latter, just use the former (and drop the -march=). Signed-off-by: Jan Beulich Acked-by: Ian Campbell --- diff --git a/xen/arch/arm/Rules.mk b/xen/arch/arm/Rules.mk index c61cc67e0a..d99c8c6d25 100644 --- a/xen/arch/arm/Rules.mk +++ b/xen/arch/arm/Rules.mk @@ -24,7 +24,7 @@ ifneq ($(call cc-option,$(CC),-fvisibility=hidden,n),n) CFLAGS += -DGCC_HAS_VISIBILITY_ATTRIBUTE endif -CFLAGS += -march=armv7-a -mcpu=cortex-a15 -mfpu=vfpv3 -mfloat-abi=softfp +CFLAGS += -mcpu=cortex-a15 -mfpu=vfpv3 -mfloat-abi=softfp # Require GCC v3.4+ (to avoid issues with alignment constraints in Xen headers) check-$(gcc) = $(call cc-ver-check,CC,0x030400,"Xen requires at least gcc-3.4")