From: Keir Fraser <keir.xen@gmail.com>
To: Jan Beulich <JBeulich@suse.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: [PATCH] x86-64: globally use -mno-sse
Date: Thu, 12 Jan 2012 14:09:01 +0000 [thread overview]
Message-ID: <CB3499FD.288E4%keir.xen@gmail.com> (raw)
In-Reply-To: <4F0EE353020000780006C190@nat28.tlf.novell.com>
On 12/01/2012 12:42, "Jan Beulich" <JBeulich@suse.com> wrote:
> 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>
> --- 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)
> --- 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
>
>
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
prev parent reply other threads:[~2012-01-12 14:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-12 12:42 [PATCH] x86-64: globally use -mno-sse Jan Beulich
2012-01-12 14:09 ` Keir Fraser [this message]
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