From patchwork Tue Aug 24 10:49:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anthony PERARD X-Patchwork-Id: 12454651 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85394C4338F for ; Tue, 24 Aug 2021 10:51:10 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4D69A610E6 for ; Tue, 24 Aug 2021 10:51:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4D69A610E6 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=citrix.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.170896.311921 (Exim 4.92) (envelope-from ) id 1mIU1F-0001se-I3; Tue, 24 Aug 2021 10:51:01 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 170896.311921; Tue, 24 Aug 2021 10:51:01 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mIU1F-0001sQ-ET; Tue, 24 Aug 2021 10:51:01 +0000 Received: by outflank-mailman (input) for mailman id 170896; Tue, 24 Aug 2021 10:51:00 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mIU1E-0001EC-7s for xen-devel@lists.xenproject.org; Tue, 24 Aug 2021 10:51:00 +0000 Received: from esa6.hc3370-68.iphmx.com (unknown [216.71.155.175]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id ef0fc935-9c35-46d8-a7ef-10ed928aeba0; Tue, 24 Aug 2021 10:50:51 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: ef0fc935-9c35-46d8-a7ef-10ed928aeba0 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=citrix.com; s=securemail; t=1629802251; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Q742NIKsfagzLTI5IRupvO4GLE3bLFBwUaLmp6zd0iU=; b=ewvO3pYNInt3Ak6F8VmSe8r0zV+C+2jfUmaQb5C0WQ+WwZK5PY+CkZ7Z EZlrlZdXgtZJaNZ7tsvPiBMtIofAXLgUAbXMK+CkDlGhptxZkhtJcLaMd 3b425zHaoiBDP47wbnrb/EFw7irWCTZZ0Fbe+rdFq1aMNWYcqp4y2bVtf 4=; Authentication-Results: esa6.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none IronPort-SDR: 2ibQmHC7TUxW3LONtSaNsTqjpSt2xZEyWMZFxgziJ7B03C4tL1Pvpb0sScLPd34rI20DEBBrkG 1QwFvR/nyHdxIflkipHqSQPmnZVeXEikszOd1uii8/n2noZ8jzt7CsQCsmgxNzztIHUh7szzWQ KDhkk6/UNeOKktnfG2bwCZGjlLsob8OhYuYnKBy3JB20FNhg1/hVTAauG1/t/Jn69lOT6VpINc TLSVGh3Lg2vh298nklo8mK2qFjCEiGvEaby1t7jAT0H99or5RUsT4SJQ3Gl9MLXWVZ83gqUqWr swPzu1VnrHzlUsJ4OrFr+J80 X-SBRS: 5.1 X-MesageID: 51166334 X-Ironport-Server: esa6.hc3370-68.iphmx.com X-Remote-IP: 162.221.156.83 X-Policy: $RELAYED IronPort-HdrOrdr: A9a23:rrW4qKz8RU4/Y18Hk6ZjKrPw1r1zdoMgy1knxilNoHxuH/BwWf rPoB17726RtN91YhsdcL+7V5VoLUmzyXcX2/h1AV7BZniEhILAFugLgbcKqweKJ8SUzJ8+6U 4PSclD4N2bNykGsS75ijPIb+rJFrO8gd+VbeS19QYScelzAZsQiDuQkmygYzZLrA8tP+teKL OsovBpihCHYnotYsGyFhA+LpL+T42iruOeXfYebSRXkDWzsQ== X-IronPort-AV: E=Sophos;i="5.84,347,1620705600"; d="scan'208";a="51166334" From: Anthony PERARD To: CC: Anthony PERARD , Jan Beulich , Andrew Cooper , George Dunlap , Ian Jackson , Julien Grall , Stefano Stabellini , Wei Liu Subject: [XEN PATCH v7 03/51] build: use if_changed_rules with %.o:%.c targets Date: Tue, 24 Aug 2021 11:49:50 +0100 Message-ID: <20210824105038.1257926-4-anthony.perard@citrix.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210824105038.1257926-1-anthony.perard@citrix.com> References: <20210824105038.1257926-1-anthony.perard@citrix.com> MIME-Version: 1.0 Use $(dot-target) to have the target name prefix with a dot. Now, when the CC command has run, it is recorded in .*.cmd file, then if_changed_rules will compare it on subsequent runs. Signed-off-by: Anthony PERARD Reviewed-by: Jan Beulich --- xen/Rules.mk | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) diff --git a/xen/Rules.mk b/xen/Rules.mk index 5a6a5d63260f..eaf770414305 100644 --- a/xen/Rules.mk +++ b/xen/Rules.mk @@ -192,19 +192,27 @@ FORCE: SRCPATH := $(patsubst $(BASEDIR)/%,%,$(CURDIR)) -%.o: %.c Makefile +quiet_cmd_cc_o_c = CC $@ ifeq ($(CONFIG_ENFORCE_UNIQUE_SYMBOLS),y) - $(CC) $(c_flags) -c $< -o $(@D)/.$(@F).tmp -MQ $@ -ifeq ($(CONFIG_CC_IS_CLANG),y) - $(OBJCOPY) --redefine-sym $<=$(SRCPATH)/$< $(@D)/.$(@F).tmp $@ -else - $(OBJCOPY) --redefine-sym $(