From 45ea841437afdf244b5b8154ceb0cf03e09cd6e1 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Mon, 25 Jun 2012 13:41:32 +0200 Subject: [PATCH] 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 --- xen/arch/arm/Rules.mk | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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") -- 2.30.2