From patchwork Mon Jul 2 20:18:18 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tom Tromey X-Patchwork-Id: 28196 Received: (qmail 7914 invoked by alias); 2 Jul 2018 20:18:43 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Delivered-To: mailing list gdb-patches@sourceware.org Received: (qmail 7795 invoked by uid 89); 2 Jul 2018 20:18:42 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-26.4 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, SPF_HELO_PASS autolearn=ham version=3.3.2 spammy= X-HELO: gateway33.websitewelcome.com Received: from gateway33.websitewelcome.com (HELO gateway33.websitewelcome.com) (192.185.145.9) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 02 Jul 2018 20:18:41 +0000 Received: from cm14.websitewelcome.com (cm14.websitewelcome.com [100.42.49.7]) by gateway33.websitewelcome.com (Postfix) with ESMTP id 08C99C1AE4 for ; Mon, 2 Jul 2018 15:18:40 -0500 (CDT) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with SMTP id a5HHfjfA1kBj6a5HPf8KQX; Mon, 02 Jul 2018 15:18:39 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=ppWgN1V8i/qU4hff1z5IQ6b3zCMrqD49g+3X5vbbZWA=; b=alVyZ3IPsqTNapaBD3JOcQF2Qq r/PByEg0NLp9GCFMXR3WOcEyg7YsHy0nqmofPU/Gws/SpNIb29zFopQRlSJNY7CMG3A98S6ovftg3 R9ZBWj+8drWiSl2IOypJYclW7; Received: from 75-166-85-72.hlrn.qwest.net ([75.166.85.72]:46962 helo=bapiya.Home) by box5379.bluehost.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1fa5HH-0049YK-N2; Mon, 02 Jul 2018 15:18:27 -0500 From: Tom Tromey To: gdb-patches@sourceware.org Cc: Tom Tromey Subject: [RFA 04/10] Use a stamp file for init.c Date: Mon, 2 Jul 2018 14:18:18 -0600 Message-Id: <20180702201824.15005-5-tom@tromey.com> In-Reply-To: <20180702201824.15005-1-tom@tromey.com> References: <20180702201824.15005-1-tom@tromey.com> This introduces a stamp file for init.c. This prevents constant rebuilds of init.o, by arranging for init.c to only be modified when its contents change. (FWIW this is a standard idiom in use by Automake and by gdb itself for many years.) 2018-07-02 Tom Tromey * Makefile.in (init.c): Depend on stamp-init. (stamp-init): New rule, from init.c rule. (clean mostlyclean): Remove stamp-init. --- gdb/ChangeLog | 6 ++++++ gdb/Makefile.in | 9 +++++---- 2 files changed, 11 insertions(+), 4 deletions(-) diff --git a/gdb/Makefile.in b/gdb/Makefile.in index b35ca2e7aef..d14e86727b8 100644 --- a/gdb/Makefile.in +++ b/gdb/Makefile.in @@ -1849,7 +1849,8 @@ test-cp-name-parser$(EXEEXT): test-cp-name-parser.o $(LIBIBERTY) # in sub-directories such as cli/ and mi/. INIT_FILES = $(COMMON_OBS) -init.c: $(INIT_FILES) +init.c: stamp-init; @true +stamp-init: $(INIT_FILES) @$(ECHO_INIT_C) echo "Making init.c" @rm -f init.c-tmp init.l-tmp @touch init.c-tmp @@ -1879,8 +1880,8 @@ init.c: $(INIT_FILES) @echo '{' >>init.c-tmp @sed -e 's/\(.*\)/ _initialize_\1 ();/' >init.c-tmp @echo '}' >>init.c-tmp - @rm init.l-tmp - @mv init.c-tmp init.c + @$(SHELL) $(srcdir)/../move-if-change init.c-tmp init.c + @echo stamp > stamp-init .PRECIOUS: init.c @@ -1947,7 +1948,7 @@ tags: TAGS clean mostlyclean: $(CONFIG_CLEAN) @$(MAKE) $(FLAGS_TO_PASS) DO=clean "DODIRS=$(CLEANDIRS)" subdir_do rm -f *.o *.a $(ADD_FILES) *~ init.c-tmp init.l-tmp version.c-tmp - rm -f init.c version.c + rm -f init.c stamp-init version.c rm -f gdb$(EXEEXT) core make.log rm -f gdb[0-9]$(EXEEXT) rm -f test-cp-name-parser$(EXEEXT)