From: Jan Beulich <jbeulich@suse.com>
Date: Thu, 12 Jan 2012 15:46:54 +0000 (+0100)
Subject: x86-64: globally use -mno-sse
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=d80c4826059a6a59a1eaa268e6ce5125c90c77ea;p=xen.git

x86-64: globally use -mno-sse

This eliminates pointless prologue code from functions having variable
argument lists (since that way xmm registers can't possibly be passed).

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
---

diff --git a/xen/arch/x86/Rules.mk b/xen/arch/x86/Rules.mk
index bf77aef8b2..9fc6d42f9f 100644
--- a/xen/arch/x86/Rules.mk
+++ b/xen/arch/x86/Rules.mk
@@ -41,7 +41,7 @@ x86_64 := n
 endif
 
 ifeq ($(TARGET_SUBARCH),x86_64)
-CFLAGS += -mno-red-zone -fpic
+CFLAGS += -mno-red-zone -mno-sse -fpic
 CFLAGS += -fno-asynchronous-unwind-tables
 # -fvisibility=hidden reduces -fpic cost, if it's available
 ifneq ($(call cc-option,$(CC),-fvisibility=hidden,n),n)
diff --git a/xen/arch/x86/efi/Makefile b/xen/arch/x86/efi/Makefile
index 6e3f94c208..005e3e05dd 100644
--- a/xen/arch/x86/efi/Makefile
+++ b/xen/arch/x86/efi/Makefile
@@ -1,4 +1,4 @@
-CFLAGS += -fshort-wchar -mno-sse
+CFLAGS += -fshort-wchar
 
 obj-y += stub.o