From patchwork Sun Aug 19 02:56:58 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andi Kleen X-Patchwork-Id: 1342701 Return-Path: X-Original-To: patchwork-linux-kbuild@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 170F3E011C for ; Sun, 19 Aug 2012 03:01:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755024Ab2HSC7m (ORCPT ); Sat, 18 Aug 2012 22:59:42 -0400 Received: from mga02.intel.com ([134.134.136.20]:36894 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753988Ab2HSC5q (ORCPT ); Sat, 18 Aug 2012 22:57:46 -0400 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 18 Aug 2012 19:57:26 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.77,792,1336374000"; d="scan'208";a="182422078" Received: from tassilo.jf.intel.com ([10.7.201.151]) by orsmga001.jf.intel.com with ESMTP; 18 Aug 2012 19:57:26 -0700 Received: by tassilo.jf.intel.com (Postfix, from userid 501) id 1FC0B2419BE; Sat, 18 Aug 2012 19:57:26 -0700 (PDT) From: Andi Kleen To: linux-kernel@vger.kernel.org Cc: x86@kernel.org, mmarek@suse.cz, linux-kbuild@vger.kernel.org, JBeulich@suse.com, akpm@linux-foundation.org, Andi Kleen Subject: [PATCH 62/74] Kbuild, lto: add ld-version and ld-ifversion macros Date: Sat, 18 Aug 2012 19:56:58 -0700 Message-Id: <1345345030-22211-63-git-send-email-andi@firstfloor.org> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1345345030-22211-1-git-send-email-andi@firstfloor.org> References: <1345345030-22211-1-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 From: Andi Kleen To check the linker version. Used by the LTO makefile. Signed-off-by: Andi Kleen --- scripts/Kbuild.include | 9 +++++++++ scripts/ld-version.sh | 8 ++++++++ 2 files changed, 17 insertions(+), 0 deletions(-) create mode 100755 scripts/ld-version.sh diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index 6a3ee98..bda5b20 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -155,6 +155,15 @@ ld-option = $(call try-run,\ # Important: no spaces around options ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2)) +# ld-version +# Usage: $(call ld-version) +# Note this is mainly for HJ Lu's 3 number binutil versions +ld-version = $(shell $(LD) --version | $(srctree)/scripts/ld-version.sh) + +# ld-ifversion +# Usage: $(call ld-ifversion, -ge, 22252, y) +ld-ifversion = $(shell [ $(call ld-version) $(1) $(2) ] && echo $(3)) + ###### ### diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh new file mode 100755 index 0000000..7eb0b76 --- /dev/null +++ b/scripts/ld-version.sh @@ -0,0 +1,8 @@ +#!/usr/bin/awk -f +# extra linker version number from stdin and turn into single number + { + gsub(".*)", ""); + split($1,a, "."); + print a[1]*10000000 + a[2]*100000 + a[3]*10000 + a[4]*100 + a[5]; + exit + }