From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760016AbZIPUhE (ORCPT ); Wed, 16 Sep 2009 16:37:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759987AbZIPUgy (ORCPT ); Wed, 16 Sep 2009 16:36:54 -0400 Received: from one.firstfloor.org ([213.235.205.2]:57600 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759984AbZIPUgw (ORCPT ); Wed, 16 Sep 2009 16:36:52 -0400 From: Andi Kleen References: <200909161036.346507799@firstfloor.org> In-Reply-To: <200909161036.346507799@firstfloor.org> To: sam@ravnborg.org, linux-kernel@vger.kernel.org Subject: [PATCH] [1/2] kbuild: Add a really-ld-option macro Message-Id: <20090916203654.6AF88B1755@basil.firstfloor.org> Date: Wed, 16 Sep 2009 22:36:54 +0200 (CEST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Different from the existing ld macro by checking $(LD) Needed for the next patch Signed-off-by: Andi Kleen --- scripts/Kbuild.include | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) Index: linux-2.6.31-ak/scripts/Kbuild.include =================================================================== --- linux-2.6.31-ak.orig/scripts/Kbuild.include +++ linux-2.6.31-ak/scripts/Kbuild.include @@ -83,11 +83,12 @@ TMPOUT := $(if $(KBUILD_EXTMOD),$(firstw # is automatically cleaned up. try-run = $(shell set -e; \ TMP="$(TMPOUT).$$$$.tmp"; \ + TMPO="$(TMPOUT).$$$$.o"; \ if ($(1)) >/dev/null 2>&1; \ then echo "$(2)"; \ else echo "$(3)"; \ fi; \ - rm -f "$$TMP") + rm -f "$$TMP" "$$TMPO") # as-option # Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,) @@ -135,6 +136,12 @@ cc-ifversion = $(shell [ $(call cc-versi ld-option = $(call try-run,\ $(CC) $(1) -nostdlib -xc /dev/null -o "$$TMP",$(1),$(2)) +# really-ld-option +# checks $(LD) unlike ld-option +# Usage: LDFLAGS += $(call really-ld-option, -X) +really-ld-option = $(call try-run,\ + $(CC) /dev/null -c -o "$$TMPO" ; $(LD) $(1) "$$TMPO" -o "$$TMP",$(1),$(2)) + ###### ###