From patchwork Tue Feb 18 14:28:49 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andi Kleen X-Patchwork-Id: 3671541 Return-Path: X-Original-To: patchwork-linux-kbuild@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id E592DBF13A for ; Tue, 18 Feb 2014 14:36:33 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1B8E0201F7 for ; Tue, 18 Feb 2014 14:36:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 28CC22020F for ; Tue, 18 Feb 2014 14:36:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756252AbaBROf6 (ORCPT ); Tue, 18 Feb 2014 09:35:58 -0500 Received: from mga02.intel.com ([134.134.136.20]:27315 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756000AbaBRO3u (ORCPT ); Tue, 18 Feb 2014 09:29:50 -0500 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 18 Feb 2014 06:29:49 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,502,1389772800"; d="scan'208";a="485209704" Received: from laut.jf.intel.com (HELO localhost) ([10.23.232.94]) by orsmga002.jf.intel.com with ESMTP; 18 Feb 2014 06:29:49 -0800 Received: by localhost (Postfix, from userid 1000) id 5ED30124B08; Tue, 18 Feb 2014 15:29:09 +0100 (CET) From: Andi Kleen To: linux-kernel@vger.kernel.org Cc: sam@ravnborg.org, x86@kernel.org, linux-kbuild@vger.kernel.org, Andi Kleen Subject: [PATCH 11/20] Kbuild, lto: Add a gcc-ld script to let run gcc as ld Date: Tue, 18 Feb 2014 15:28:49 +0100 Message-Id: <1392733738-8290-12-git-send-email-andi@firstfloor.org> X-Mailer: git-send-email 1.8.5.2 In-Reply-To: <1392733738-8290-1-git-send-email-andi@firstfloor.org> References: <1392733738-8290-1-git-send-email-andi@firstfloor.org> Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Andi Kleen For LTO we need to run the link step with gcc, not ld. Since there are a lot of linker options passed to it, add a gcc-ld wrapper that wraps them as -Wl, Signed-off-by: Andi Kleen --- scripts/gcc-ld | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 scripts/gcc-ld diff --git a/scripts/gcc-ld b/scripts/gcc-ld new file mode 100644 index 0000000..1e71ef3 --- /dev/null +++ b/scripts/gcc-ld @@ -0,0 +1,34 @@ +#!/bin/sh +# run gcc with ld options +# used as a wrapper to execute link time optimizations +# yes virginia, this is not pretty + +case "${KBUILD_VERBOSE}" in +*1*) set -x ;; +esac + +ARGS="-nostdlib" + +while [ "$1" != "" ] ; do + case "$1" in + -save-temps|-m32|-m64) N="$1" ;; + -r) N="$1" ;; + -[Wg]*) N="$1" ;; + -[olv]|-[Ofd]*|-nostdlib) N="$1" ;; + --end-group|--start-group) + N="-Wl,$1" ;; + -[RTFGhIezcbyYu]*|\ +--script|--defsym|-init|-Map|--oformat|-rpath|\ +-rpath-link|--sort-section|--section-start|-Tbss|-Tdata|-Ttext|\ +--version-script|--dynamic-list|--version-exports-symbol|--wrap|-m) + A="$1" ; shift ; N="-Wl,$A,$1" ;; + --param) shift ; N="--param $1" ;; + -[m]*) N="$1" ;; + -*) N="-Wl,$1" ;; + *) N="$1" ;; + esac + ARGS="$ARGS $N" + shift +done + +exec $CC $ARGS