From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762143AbXGSJ4Y (ORCPT ); Thu, 19 Jul 2007 05:56:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752373AbXGSJys (ORCPT ); Thu, 19 Jul 2007 05:54:48 -0400 Received: from ns1.suse.de ([195.135.220.2]:35331 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751524AbXGSJyq (ORCPT ); Thu, 19 Jul 2007 05:54:46 -0400 From: Andi Kleen References: <200707191154.642492000@suse.de> In-Reply-To: <200707191154.642492000@suse.de> To: patches@x86-64.org, linux-kernel@vger.kernel.org Subject: [PATCH] [2/58] x86_64: Tell gcc to only align stack to 8 bytes Message-Id: <20070719095445.DC94514E04@wotan.suse.de> Date: Thu, 19 Jul 2007 11:54:45 +0200 (CEST) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Don't need 16 byte alignment because kernel doesn't use SSE2 Signed-off-by: Andi Kleen --- arch/x86_64/Makefile | 1 + 1 file changed, 1 insertion(+) Index: linux/arch/x86_64/Makefile =================================================================== --- linux.orig/arch/x86_64/Makefile +++ linux/arch/x86_64/Makefile @@ -55,6 +55,7 @@ cflags-y += $(call cc-option,-mno-sse -m # this works around some issues with generating unwind tables in older gccs # newer gccs do it by default cflags-y += -maccumulate-outgoing-args +cflags-y += -mpreferred-stack-boundary=4 # do binutils support CFI? cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)