From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751976AbaBHIF5 (ORCPT ); Sat, 8 Feb 2014 03:05:57 -0500 Received: from mga02.intel.com ([134.134.136.20]:8677 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750837AbaBHICI (ORCPT ); Sat, 8 Feb 2014 03:02:08 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.95,805,1384329600"; d="scan'208";a="480010868" From: Andi Kleen To: linux-kernel@vger.kernel.org Cc: linux-kbuild@vger.kernel.org, x86@kernel.org, Andi Kleen Subject: [PATCH 10/17] Kbuild, lto: Add a gcc-ld script to let run gcc as ld Date: Sat, 8 Feb 2014 09:01:14 +0100 Message-Id: <1391846481-31491-10-git-send-email-ak@linux.intel.com> X-Mailer: git-send-email 1.8.5.2 In-Reply-To: <1391846481-31491-1-git-send-email-ak@linux.intel.com> References: <1391846481-31491-1-git-send-email-ak@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 scripts/gcc-ld diff --git a/scripts/gcc-ld b/scripts/gcc-ld new file mode 100644 index 0000000..cadab9a --- /dev/null +++ b/scripts/gcc-ld @@ -0,0 +1,29 @@ +#!/bin/sh +# run gcc with ld options +# used as a wrapper to execute link time optimizations +# yes virginia, this is not pretty + +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" ;; + -[m]*) N="$1" ;; + -*) N="-Wl,$1" ;; + *) N="$1" ;; + esac + ARGS="$ARGS $N" + shift +done + +exec $CC $ARGS -- 1.8.5.2